am 90b4233a: Merge changes I3aa6d877,I76e81e7f
* commit '90b4233a7db64ebec5c45e589ba8847096982eed':
libpng 1.6.10 - Merge seekable png patch
Update libpng from 1.6.3 to 1.6.10
diff --git a/ANNOUNCE b/ANNOUNCE
index 07d5bcc..9f19880 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,5 +1,5 @@
-Libpng 1.6.3 - July 18, 2013
+Libpng 1.6.10 - March 6, 2014
This is a public release of libpng, intended for use in production codes.
@@ -8,106 +8,80 @@
Source files with LF line endings (for Unix/Linux) and with a
"configure" script
- libpng-1.6.3.tar.xz (LZMA-compressed, recommended)
- libpng-1.6.3.tar.gz
+ libpng-1.6.10.tar.xz (LZMA-compressed, recommended)
+ libpng-1.6.10.tar.gz
Source files with CRLF line endings (for Windows), without the
"configure" script
- lpng163.7z (LZMA-compressed, recommended)
- lpng163.zip
+ lpng1610.7z (LZMA-compressed, recommended)
+ lpng1610.zip
Other information:
- libpng-1.6.3-README.txt
- libpng-1.6.3-LICENSE.txt
+ libpng-1.6.10-README.txt
+ libpng-1.6.10-LICENSE.txt
+ libpng-1.6.10-*.asc (armored detached GPG signatures)
-Changes since the last public release (1.6.2):
-
- Revised stack marking in arm/filter_neon.S and configure.ac.
- Ensure that NEON filter stuff is completely disabled when switched 'off'.
- Previously the ARM NEON specific files were still built if the option
- was switched 'off' as opposed to being explicitly disabled.
- Test for 'arm*' not just 'arm' in the host_cpu configure variable.
- Rebuilt the configure scripts.
- Expanded manual paragraph about writing private chunks, particularly
- the need to call png_set_keep_unknown_chunks() when writing them.
- Avoid dereferencing NULL pointer possibly returned from
- png_create_write_struct() (Andrew Church).
- Calculate our own zlib windowBits when decoding rather than trusting the
- CMF bytes in the PNG datastream.
- Added an option to force maximum window size for inflating, which was
- the behavior of libpng15 and earlier.
- Added png-fix-itxt and png-fix-too-far-back to the built programs and
- removed warnings from the source code and timepng that are revealed as
- a result.
- Detect wrong libpng versions linked to png-fix-too-far-back, which currently
- only works with libpng versions that can be made to reliably fail when
- the deflate data contains an out-of-window reference. This means only
- 1.6 and later.
- Fixed gnu issues: g++ needs a static_cast, gcc 4.4.7 has a broken warning
- message which it is easier to work round than ignore.
- Updated contrib/pngminus/pnm2png.c (Paul Stewart):
- Check for EOF
- Ignore "#" delimited comments in input file to pnm2png.c.
- Fixed whitespace handling
- Added a call to png_set_packing()
- Initialize dimension values so if sscanf fails at least we have known
- invalid values.
- Attempt to detect configuration issues with png-fix-too-far-back, which
- requires both the correct libpng and the correct zlib to function
- correctly.
- Check ZLIB_VERNUM for mismatches, enclose #error in quotes
- Added information in the documentation about problems with and fixes for
- the bad CRC and bad iTXt chunk situations.
- Allow contrib/pngminus/pnm2png.c to compile without WRITE_INVERT and
- WRITE_PACK supported (writes error message that it can't read P1 or
- Improved png-fix-too-far-back usage message, added --suffix option.
- Revised contrib/pngminim/*/makefile to generate pnglibconf.h with the
- right zlib header files.
- Separated CPPFLAGS and CFLAGS in contrib/pngminim/*/makefile
- Removed a redundant test in png_set_IHDR().
- Added set(CMAKE_CONFIGURATION_TYPES ...) to CMakeLists.txt (Andrew Hundt)
- Deleted set(CMAKE_BUILD_TYPE) block from CMakeLists.txt
- Enclose the prototypes for the simplified write API in
- #ifdef PNG_STDIO_SUPPORTED/#endif
- Make ARM NEON support work at compile time (not just configure time).
- This moves the test on __ARM_NEON__ into pngconf.h to avoid issues when
- using a compiler that compiles for multiple architectures at one time.
- Removed PNG_FILTER_OPTIMIZATIONS and PNG_ARM_NEON_SUPPORTED from
- pnglibconf.h, allowing more of the decisions to be made internally
- (pngpriv.h) during the compile. Without this, symbol prefixing is broken
- under certain circumstances on ARM platforms. Now only the API parts of
- the optimizations ('check' vs 'api') are exposed in the public header files
- except that the new setting PNG_ARM_NEON_OPT documents how libpng makes the
- decision about whether or not to use the optimizations.
- Protect symbol prefixing against CC/CPPFLAGS/CFLAGS useage.
- Previous iOS/Xcode fixes for the ARM NEON optimizations moved the test
- on __ARM_NEON__ from configure time to compile time. This breaks symbol
- prefixing because the definition of the special png_init_filter_functions
- call was hidden at configure time if the relevant compiler arguments are
- passed in CFLAGS as opposed to CC. This change attempts to avoid all
- the confusion that would result by declaring the init function even when
- it is not used, so that it will always get prefixed.
- Revised libpng.3 so that "doclifter" can process it.
- Revised example.c to illustrate use of PNG_DEFAULT_sRGB and PNG_GAMMA_MAC_18
- as parameters for png_set_gamma(). These have been available since
- libpng-1.5.4.
- Renamed contrib/tools/png-fix-too-far-back.c to pngfix.c and revised it
- to check all compressed chunks known to libpng.
- Updated documentation to show default behavior of benign errors correctly.
- Only compile ARM code when PNG_READ_SUPPORTED is defined.
- Fixed undefined behavior in contrib/tools/pngfix.c and added new strip
- option. pngfix relied on undefined behavior and even a simple change from
- gcc to g++ caused it to fail. The new strip option 'unsafe' has been
- implemented and is the default if --max is given. Option names have
- been clarified, with --strip=transform now stripping the bKGD chunk,
- which was stripped previously with --strip=unused.
- Added all documented chunk types to pngpriv.h
- Unified pngfix.c source with libpng17.
- Revised manual about changes in iTXt chunk handling made in libpng-1.6.0.
- Added "/* SAFE */" comments in pngrutil.c and pngrtran.c where warnings
- may be erroneously issued by code-checking applications.
+Changes since the last public release (1.6.9):
+ Backported changes from libpng-1.7.0beta30 and beta31:
+ Fixed a large number of instances where PNGCBAPI was omitted from
+ function definitions.
+ Added pngimage test program for png_read_png() and png_write_png()
+ with two new test scripts.
+ Removed dependence on !PNG_READ_EXPAND_SUPPORTED for calling
+ png_set_packing() in png_read_png().
+ Fixed combination of ~alpha with shift. On read invert alpha, processing
+ occurred after shift processing, which causes the final values to be
+ outside the range that should be produced by the shift. Reversing the
+ order on read makes the two transforms work together correctly and mirrors
+ the order used on write.
+ Do not read invalid sBIT chunks. Previously libpng only checked sBIT
+ values on write, so a malicious PNG writer could therefore cause
+ the read code to return an invalid sBIT chunk, which might lead to
+ application errors or crashes. Such chunks are now skipped (with
+ chunk_benign_error).
+ Make png_read_png() and png_write_png() prototypes in png.h depend
+ upon PNG_READ_SUPPORTED and PNG_WRITE_SUPPORTED.
+ Support builds with unsupported PNG_TRANSFORM_* values. All of the
+ PNG_TRANSFORM_* values are always defined in png.h and, because they
+ are used for both read and write in some cases, it is not reliable
+ to #if out ones that are totally unsupported. This change adds error
+ detection in png_read_image() and png_write_image() to do a
+ png_app_error() if the app requests something that cannot be done
+ and it adds corresponding code to pngimage.c to handle such options
+ by not attempting to test them.
+ Moved redefines of png_error(), png_warning(), png_chunk_error(),
+ and png_chunk_warning() from pngpriv.h to png.h to make them visible
+ to libpng-calling applications.
+ Moved OS dependent code from arm/arm_init.c, to allow the included
+ implementation of the ARM NEON discovery function to be set at
+ build-time and provide sample implementations from the current code in the
+ contrib/arm-neon subdirectory. The __linux__ code has also been changed to
+ compile and link on Android by using /proc/cpuinfo, and the old linux code
+ is in contrib/arm-neon/linux-auxv.c. The new code avoids POSIX and Linux
+ dependencies apart from opening /proc/cpuinfo and is C90 compliant.
+ Check for info_ptr == NULL early in png_read_end() so we don't need to
+ run all the png_handle_*() and depend on them to return if info_ptr == NULL.
+ This improves the performance of png_read_end(png_ptr, NULL) and makes
+ it more robust against future programming errors.
+ Check for __has_extension before using it in pngconf.h, to
+ support older Clang versions (Jeremy Sequoia).
+ Treat CRC error handling with png_set_crc_action(), instead of with
+ png_set_benign_errors(), which has been the case since libpng-1.6.0beta18.
+ Use a user warning handler in contrib/gregbook/readpng2.c instead of default,
+ so warnings will be put on stderr even if libpng has CONSOLE_IO disabled.
+ Added png_ptr->process_mode = PNG_READ_IDAT_MODE in png_push_read_chunk
+ after recognizing the IDAT chunk, which avoids an infinite loop while
+ reading a datastream whose first IDAT chunk is of zero-length.
+ This fixes CERT VU#684412 and CVE-2014-0333.
+ Don't recognize known sRGB profiles as sRGB if they have been hacked,
+ but don't reject them and don't issue a copyright violation warning.
+ Moved some documentation from png.h to libpng.3 and libpng-manual.txt
+ Minor editing of contrib/arm-neon/README and contrib/examples/*.c
+ Fixed typos in the manual and in scripts/pnglibconf.dfa (CFLAGS -> CPPFLAGS
+ and PNG_USR_CONFIG -> PNG_USER_CONFIG).
+ Un-deprecated png_data_freer().
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit
@@ -116,3 +90,4 @@
or to glennrp at users.sourceforge.net
Glenn R-P
+#endif
diff --git a/Android.mk b/Android.mk
index b05ad63..2551612 100644
--- a/Android.mk
+++ b/Android.mk
@@ -30,8 +30,9 @@
my_cflags_arm += -fno-slp-vectorize
my_src_files_arm := \
- arm/arm_init.c \
- arm/filter_neon.S
+ arm/arm_init.c \
+ arm/filter_neon.S \
+ arm/filter_neon_intrinsics.c
common_CFLAGS := -std=gnu89 #-fvisibility=hidden ## -fomit-frame-pointer
diff --git a/CHANGES b/CHANGES
index fba37a7..b3e09f8 100644
--- a/CHANGES
+++ b/CHANGES
@@ -4618,6 +4618,262 @@
Added "/* SAFE */" comments in pngrutil.c and pngrtran.c where warnings
may be erroneously issued by code-checking applications.
+Version 1.6.4beta01 [August 21, 2013]
+ Added information about png_set_options() to the manual.
+ Delay calling png_init_filter_functions() until a row with nonzero filter
+ is found.
+
+Version 1.6.4beta02 [August 30, 2013]
+ Fixed inconsistent conditional compilation of png_chunk_unknown_handling()
+ prototype, definition, and usage. Made it depend on
+ PNG_HANDLE_AS_UNKNOWN_SUPPORTED everywhere.
+
+Version 1.6.4rc01 [September 5, 2013]
+ No changes.
+
+Version 1.6.4 [September 12, 2013]
+ No changes.
+
+Version 1.6.5 [September 14, 2013]
+ Removed two stray lines of code from arm/arm_init.c.
+
+Version 1.6.6 [September 16, 2013]
+ Removed two stray lines of code from arm/arm_init.c, again.
+
+Version 1.6.7beta01 [September 30, 2013]
+ Revised unknown chunk code to correct several bugs in the NO_SAVE_/NO_WRITE
+ combination
+ Allow HANDLE_AS_UNKNOWN to work when other options are configured off. Also
+ fixed the pngminim makefiles to work when $(MAKEFLAGS) contains stuff
+ which terminates the make options (as by default in recent versions of
+ Gentoo).
+ Avoid up-cast warnings in pngvalid.c. On ARM the alignment requirements of
+ png_modifier are greater than that of png_store and as a consequence
+ compilation of pngvalid.c results in a warning about increased alignment
+ requirements because of the bare cast to (png_modifier*). The code is safe,
+ because the pointer is known to point to a stack allocated png_modifier,
+ but this change avoids the warning.
+ Fixed default behavior of ARM_NEON_API. If the ARM NEON API option was
+ compiled without the CHECK option it defaulted to on, not off.
+ Check user callback behavior in pngunknown.c. Previous versions compiled
+ if SAVE_UNKNOWN was not available but did nothing since the callback
+ was never implemented.
+ Merged pngunknown.c with 1.7 version and back ported 1.7 improvements/fixes
+
+Version 1.6.7beta02 [October 12, 2013]
+ Made changes for compatibility with automake 1.14:
+ 1) Added the 'compile' program to the list of programs that must be cleaned
+ in autogen.sh
+ 2) Added 'subdir-objects' which causes .c files in sub-directories to be
+ compiled such that the corresponding .o files are also in the
+ sub-directory. This is because automake 1.14 warns that the
+ current behavior of compiling to the top level directory may be removed
+ in the future.
+ 3) Updated dependencies on pnglibconf.h to match the new .o locations and
+ added all the files in contrib/libtests and contrib/tools that depend
+ on pnglibconf.h
+ 4) Added 'BUILD_SOURCES = pnglibconf.h'; this is the automake recommended
+ way of handling the dependencies of sources that are machine generated;
+ unfortunately it only works if the user does 'make all' or 'make check',
+ so the dependencies (3) are still required.
+ Cleaned up (char*) casts of zlib messages. The latest version of the Intel C
+ compiler complains about casting a string literal as (char*), so copied the
+ treatment of z_const from the library code into pngfix.c
+ Simplified error message code in pngunknown. The simplification has the
+ useful side effect of avoiding a bogus warning generated by the latest
+ version of the Intel C compiler (it objects to
+ condition ? string-literal : string-literal).
+ Make autogen.sh work with automake 1.13 as well as 1.14. Do this by always
+ removing the 1.14 'compile' script but never checking for it.
+
+Version 1.6.7beta03 [October 19, 2013]
+ Added ARMv8 support (James Yu <james.yu at linaro.org>). Added file
+ arm/filter_neon_intrinsics.c; enable with -mfpu=neon.
+ Revised pngvalid to generate size images with as many filters as it can
+ manage, limited by the number of rows.
+ Cleaned up ARM NEON compilation handling. The tests are now in pngpriv.h
+ and detect the broken GCC compilers.
+
+Version 1.6.7beta04 [October 26, 2013]
+ Allow clang derived from older GCC versions to use ARM intrinsics. This
+ causes all clang builds that use -mfpu=neon to use the intrinsics code,
+ not the assembler code. This has only been tested on iOS 7. It may be
+ necessary to exclude some earlier clang versions but this seems unlikely.
+ Changed NEON implementation selection mechanism. This allows assembler
+ or intrinsics to be turned on at compile time during the build by defining
+ PNG_ARM_NEON_IMPLEMENTATION to the correct value (2 or 1). This macro
+ is undefined by default and the build type is selected in pngpriv.h.
+
+Version 1.6.7rc01 [November 2, 2013]
+ No changes.
+
+Version 1.6.7rc02 [November 7, 2013]
+ Fixed #include in filter_neon_intrinsics.c and ctype macros. The ctype char
+ checking macros take an unsigned char argument, not a signed char.
+
+Version 1.6.7 [November 14, 2013]
+ No changes.
+
+Version 1.6.8beta01 [November 24, 2013]
+ Moved prototype for png_handle_unknown() in pngpriv.h outside of
+ the #ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED/#endif block.
+ Added "-Wall" to CFLAGS in contrib/pngminim/*/makefile
+ Conditionally compile some unused functions reported by -Wall in
+ pngminim.
+ Fixed 'minimal' builds. Various obviously useful minimal configurations
+ don't build because of missing contrib/libtests test programs and
+ overly complex dependencies in scripts/pnglibconf.dfa. This change
+ adds contrib/conftest/*.dfa files that can be used in automatic build
+ scripts to ensure that these configurations continue to build.
+ Enabled WRITE_INVERT and WRITE_PACK in contrib/pngminim/encoder.
+ Fixed pngvalid 'fail' function declaration on the Intel C Compiler.
+ This reverts to the previous 'static' implementation and works round
+ the 'unused static function' warning by using PNG_UNUSED().
+
+Version 1.6.8beta02 [November 30, 2013]
+ Removed or marked PNG_UNUSED some harmless "dead assignments" reported
+ by clang scan-build.
+ Changed tabs to 3 spaces in png_debug macros and changed '"%s"m'
+ to '"%s" m' to improve portability among compilers.
+ Changed png_free_default() to free() in pngtest.c
+
+Version 1.6.8rc01 [December 12, 2013]
+ Tidied up pngfix inits and fixed pngtest no-write builds.
+
+Version 1.6.8rc02 [December 14, 2013]
+ Handle zero-length PLTE chunk or NULL palette with png_error()
+ instead of png_chunk_report(), which by default issues a warning
+ rather than an error, leading to later reading from a NULL pointer
+ (png_ptr->palette) in png_do_expand_palette(). This is CVE-2013-6954
+ and VU#650142. Libpng-1.6.1 through 1.6.7 are vulnerable.
+ Libpng-1.6.0 and earlier do not have this bug.
+
+Version 1.6.8 [December 19, 2013]
+ No changes.
+
+Version 1.6.9beta01 [December 26, 2013]
+ Bookkeeping: Moved functions around (no changes). Moved transform
+ function definitions before the place where they are called so that
+ they can be made static. Move the intrapixel functions and the
+ grayscale palette builder out of the png?tran.c files. The latter
+ isn't a transform function and is no longer used internally, and the
+ former MNG specific functions are better placed in pngread/pngwrite.c
+ Made transform implementation functions static. This makes the internal
+ functions called by png_do_{read|write}_transformations static. On an
+ x86-64 DLL build (Gentoo Linux) this reduces the size of the text
+ segment of the DLL by 1208 bytes, about 0.6%. It also simplifies
+ maintenance by removing the declarations from pngpriv.h and allowing
+ easier changes to the internal interfaces.
+ Rebuilt configure scripts with automake-1.14.1 and autoconf-2.69
+ in the tar distributions.
+
+Version 1.6.9beta02 [January 1, 2014]
+ Added checks for libpng 1.5 to pngvalid.c. This supports the use of
+ this version of pngvalid in libpng 1.5
+ Merged with pngvalid.c from libpng-1.7 changes to create a single
+ pngvalid.c
+ Removed #error macro from contrib/tools/pngfix.c (Thomas Klausner).
+ Merged pngrio.c, pngtrans.c, pngwio.c, and pngerror.c with libpng-1.7.0
+ Merged libpng-1.7.0 changes to make no-interlace configurations work
+ with test programs.
+ Revised pngvalid.c to support libpng 1.5, which does not support the
+ PNG_MAXIMUM_INFLATE_WINDOW option, so #define it out when appropriate in
+ pngvalid.c
+ Allow unversioned links created on install to be disabled in configure.
+ In configure builds 'make install' changes/adds links like png.h
+ and libpng.a to point to the newly installed, versioned, files (e.g.
+ libpng17/png.h and libpng17.a). Three new configure options and some
+ rearrangement of Makefile.am allow creation of these links to be disabled.
+
+Version 1.6.9beta03 [January 10, 2014]
+ Removed potentially misleading warning from png_check_IHDR().
+
+Version 1.6.9beta04 [January 20, 2014]
+ Updated scripts/makefile.* to use CPPFLAGS (Cosmin).
+ Added clang attribute support (Cosmin).
+
+Version 1.6.9rc01 [January 28, 2014]
+ No changes.
+
+Version 1.6.9rc02 [January 30, 2014]
+ Quiet an uninitialized memory warning from VC2013 in png_get_png().
+
+Version 1.6.9 [February 6, 2014]
+
+Version 1.6.10beta01 [February 9, 2014]
+ Backported changes from libpng-1.7.0beta30 and beta31:
+ Fixed a large number of instances where PNGCBAPI was omitted from
+ function definitions.
+ Added pngimage test program for png_read_png() and png_write_png()
+ with two new test scripts.
+ Removed dependence on !PNG_READ_EXPAND_SUPPORTED for calling
+ png_set_packing() in png_read_png().
+ Fixed combination of ~alpha with shift. On read invert alpha, processing
+ occurred after shift processing, which causes the final values to be
+ outside the range that should be produced by the shift. Reversing the
+ order on read makes the two transforms work together correctly and mirrors
+ the order used on write.
+ Do not read invalid sBIT chunks. Previously libpng only checked sBIT
+ values on write, so a malicious PNG writer could therefore cause
+ the read code to return an invalid sBIT chunk, which might lead to
+ application errors or crashes. Such chunks are now skipped (with
+ chunk_benign_error).
+ Make png_read_png() and png_write_png() prototypes in png.h depend
+ upon PNG_READ_SUPPORTED and PNG_WRITE_SUPPORTED.
+ Support builds with unsupported PNG_TRANSFORM_* values. All of the
+ PNG_TRANSFORM_* values are always defined in png.h and, because they
+ are used for both read and write in some cases, it is not reliable
+ to #if out ones that are totally unsupported. This change adds error
+ detection in png_read_image() and png_write_image() to do a
+ png_app_error() if the app requests something that cannot be done
+ and it adds corresponding code to pngimage.c to handle such options
+ by not attempting to test them.
+
+Version 1.6.10beta02 [February 23, 2014]
+ Moved redefines of png_error(), png_warning(), png_chunk_error(),
+ and png_chunk_warning() from pngpriv.h to png.h to make them visible
+ to libpng-calling applications.
+ Moved OS dependent code from arm/arm_init.c, to allow the included
+ implementation of the ARM NEON discovery function to be set at
+ build-time and provide sample implementations from the current code in the
+ contrib/arm-neon subdirectory. The __linux__ code has also been changed to
+ compile and link on Android by using /proc/cpuinfo, and the old linux code
+ is in contrib/arm-neon/linux-auxv.c. The new code avoids POSIX and Linux
+ dependencies apart from opening /proc/cpuinfo and is C90 compliant.
+ Check for info_ptr == NULL early in png_read_end() so we don't need to
+ run all the png_handle_*() and depend on them to return if info_ptr == NULL.
+ This improves the performance of png_read_end(png_ptr, NULL) and makes
+ it more robust against future programming errors.
+ Check for __has_extension before using it in pngconf.h, to
+ support older Clang versions (Jeremy Sequoia).
+ Treat CRC error handling with png_set_crc_action(), instead of with
+ png_set_benign_errors(), which has been the case since libpng-1.6.0beta18.
+ Use a user warning handler in contrib/gregbook/readpng2.c instead of default,
+ so warnings will be put on stderr even if libpng has CONSOLE_IO disabled.
+ Added png_ptr->process_mode = PNG_READ_IDAT_MODE in png_push_read_chunk
+ after recognizing the IDAT chunk, which avoids an infinite loop while
+ reading a datastream whose first IDAT chunk is of zero-length.
+ This fixes CERT VU#684412 and CVE-2014-0333.
+ Don't recognize known sRGB profiles as sRGB if they have been hacked,
+ but don't reject them and don't issue a copyright violation warning.
+
+Version 1.6.10beta03 [February 25, 2014]
+ Moved some documentation from png.h to libpng.3 and libpng-manual.txt
+ Minor editing of contrib/arm-neon/README and contrib/examples/*.c
+
+Version 1.6.10rc01 [February 27, 2014]
+ Fixed typos in the manual and in scripts/pnglibconf.dfa (CFLAGS -> CPPFLAGS
+ and PNG_USR_CONFIG -> PNG_USER_CONFIG).
+
+Version 1.6.10rc02 [February 28, 2014]
+ Removed unreachable return statement after png_chunk_error()
+ in pngrutil.c
+
+Version 1.6.10rc03 [March 4, 2014]
+ Un-deprecated png_data_freer().
+
+Version 1.6.10 [March 6, 2014]
+
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit
https://lists.sourceforge.net/lists/listinfo/png-mng-implement
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0a1c459..34d62b5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,7 +16,7 @@
set(PNGLIB_MAJOR 1)
set(PNGLIB_MINOR 6)
-set(PNGLIB_RELEASE 3)
+set(PNGLIB_RELEASE 10)
set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR})
set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE})
@@ -252,7 +252,7 @@
# SET UP LINKS
if(PNG_SHARED)
set_target_properties(${PNG_LIB_NAME} PROPERTIES
-# VERSION 16.${PNGLIB_RELEASE}.1.6.3
+# VERSION 16.${PNGLIB_RELEASE}.1.6.10
VERSION 16.${PNGLIB_RELEASE}.0
SOVERSION 16
CLEAN_DIRECT_OUTPUT 1)
diff --git a/LICENSE b/LICENSE
index 42c0428..94f5e95 100644
--- a/LICENSE
+++ b/LICENSE
@@ -10,8 +10,8 @@
This code is released under the libpng license.
-libpng versions 1.2.6, August 15, 2004, through 1.6.3, July 18, 2013, are
-Copyright (c) 2004, 2006-2013 Glenn Randers-Pehrson, and are
+libpng versions 1.2.6, August 15, 2004, through 1.6.10, March 6, 2014, are
+Copyright (c) 2004, 2006-2014 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.2.5
with the following individual added to the list of Contributing Authors
@@ -108,4 +108,4 @@
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
-July 18, 2013
+March 6, 2014
diff --git a/Makefile.am b/Makefile.am
index 74a33e6..052e596 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -7,11 +7,21 @@
ACLOCAL_AMFLAGS = -I scripts
# test programs - run on make check, make distcheck
-check_PROGRAMS= pngtest pngunknown pngstest pngvalid
+check_PROGRAMS= pngtest pngunknown pngstest pngvalid pngimage
# Utilities - installed
bin_PROGRAMS= pngfix png-fix-itxt
+# This ensures that pnglibconf.h gets built at the start of 'make all' or
+# 'make check', but it does not add dependencies to the individual programs,
+# this is done below.
+#
+# IMPORTANT: always add the object modules of new programs to the list below
+# because otherwise the sequence 'configure; make new-program' will *sometimes*
+# result in the installed (system) pnglibconf.h being used and the result is
+# always wrong and always very confusing.
+BUILT_SOURCES = pnglibconf.h
+
pngtest_SOURCES = pngtest.c
pngtest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
@@ -24,6 +34,9 @@
pngunknown_SOURCES = contrib/libtests/pngunknown.c
pngunknown_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
+pngimage_SOURCES = contrib/libtests/pngimage.c
+pngimage_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
+
pngfix_SOURCES = contrib/tools/pngfix.c
pngfix_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
@@ -49,7 +62,8 @@
tests/pngstest-4a16 tests/pngstest-6a08 tests/pngstest-6a16\
tests/pngstest-error tests/pngunknown-IDAT\
tests/pngunknown-discard tests/pngunknown-if-safe tests/pngunknown-sAPI\
- tests/pngunknown-sTER tests/pngunknown-save tests/pngunknown-vpAg
+ tests/pngunknown-sTER tests/pngunknown-save tests/pngunknown-vpAg\
+ tests/pngimage-quick tests/pngimage-full
# These tests are expected, and required, to fail:
XFAIL_TESTS = tests/pngstest-error
@@ -72,7 +86,7 @@
if PNG_ARM_NEON
libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += arm/arm_init.c\
- arm/filter_neon.S
+ arm/filter_neon.S arm/filter_neon_intrinsics.c
endif
nodist_libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES = pnglibconf.h
@@ -194,9 +208,22 @@
# The following is necessary to ensure that the local pnglibconf.h is used, not
# an installed one (this can happen immediately after on a clean system if
-# 'make test' is the first thing the user does.)
-pngstest.o pngvalid.o pngtest.o pngunknown.o timepng.o: pnglibconf.h
-pngfix.o png-fix-itxt.o: pnglibconf.h
+# 'make test' is the first thing the user does.) Only files which include
+# one of the png source files (typically png.h or pngpriv.h) need to be listed
+# here:
+pngtest.o: pnglibconf.h
+
+contrib/libtests/makepng.o: pnglibconf.h
+contrib/libtests/pngstest.o: pnglibconf.h
+contrib/libtests/pngunknown.o: pnglibconf.h
+contrib/libtests/pngimage.o: pnglibconf.h
+contrib/libtests/pngvalid.o: pnglibconf.h
+contrib/libtests/readpng.o: pnglibconf.h
+contrib/libtests/tarith.o: pnglibconf.h
+contrib/libtests/timepng.o: pnglibconf.h
+
+contrib/tools/makesRGB.o: pnglibconf.h
+contrib/tools/pngfix.o: pnglibconf.h
# We must use -DPNG_NO_USE_READ_MACROS here even when the library may actually
# be built with PNG_USE_READ_MACROS; this prevents the read macros from
@@ -265,40 +292,76 @@
dist-hook:
cd '$(top_distdir)'; rm -f $(SCRIPT_CLEANFILES)
-# install the .../include headers as links to the new ones
-install-data-hook:
- cd '$(DESTDIR)$(includedir)'; rm -f png.h pngconf.h pnglibconf.h
- cd '$(DESTDIR)$(includedir)'; $(LN_S) $(PNGLIB_BASENAME)/png.h png.h
- cd '$(DESTDIR)$(includedir)'; $(LN_S) $(PNGLIB_BASENAME)/pngconf.h \
- pngconf.h
- cd '$(DESTDIR)$(includedir)'; $(LN_S) $(PNGLIB_BASENAME)/pnglibconf.h \
- pnglibconf.h
- cd '$(DESTDIR)$(pkgconfigdir)'; rm -f libpng.pc
- cd '$(DESTDIR)$(pkgconfigdir)'; $(LN_S) $(PNGLIB_BASENAME).pc libpng.pc
+# Make links between installed files with release-specific names and the generic
+# file names. If this install rule is run the generic names will be deleted and
+# recreated - this has obvious issues for systems with multiple installations.
-# do evil things to libpng to cause libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@ to be used
-install-exec-hook:
- cd '$(DESTDIR)$(bindir)'; rm -f libpng-config
- cd '$(DESTDIR)$(bindir)';\
- $(LN_S) $(PNGLIB_BASENAME)-config libpng-config
- @set -x;\
- cd '$(DESTDIR)$(libdir)';\
- for ext in a la so so.@PNGLIB_MAJOR@@PNGLIB_MINOR@.@PNGLIB_RELEASE@\
- sl dylib dll.a; do\
- rm -f libpng.$$ext;\
- if test -f $(PNGLIB_BASENAME).$$ext; then\
- $(LN_S) $(PNGLIB_BASENAME).$$ext libpng.$$ext;\
- fi;\
+install-header-links:
+ @set -ex; cd '$(DESTDIR)$(includedir)'; for f in $(HEADERS); do \
+ rm -f "$$f"; $(LN_S) "$(PNGLIB_BASENAME)/$$f" "$$f"; done
+
+uninstall-header-links:
+ cd '$(DESTDIR)$(includedir)'; rm -f $(HEADERS)
+
+install-libpng-pc:
+ @set -ex; cd '$(DESTDIR)$(pkgconfigdir)'; rm -f libpng.pc; \
+ $(LN_S) '$(PNGLIB_BASENAME).pc' libpng.pc
+
+uninstall-libpng-pc:
+ rm -f '$(DESTDIR)$(pkgconfigdir)/libpng.pc'
+
+# EXT_LIST is a list of the possibly library directory extensions, this exists
+# because we can't find a good way of discovering the file extensions that are
+# actually installed on a given system, so instead we check for every extension
+# we have seen.
+
+EXT_LIST = a dll.a so so.@PNGLIB_MAJOR@@PNGLIB_MINOR@.@PNGLIB_RELEASE@ la sl dylib
+
+install-library-links:
+ @set -x; cd '$(DESTDIR)$(libdir)';\
+ for ext in $(EXT_LIST); do\
+ rm -f "libpng.$$ext";\
+ if test -f "$(PNGLIB_BASENAME).$$ext"; then\
+ $(LN_S) "$(PNGLIB_BASENAME).$$ext" "libpng.$$ext" || exit 1;\
+ fi;\
done
-uninstall-hook:
- cd '$(DESTDIR)$(includedir)'; rm -f png.h pngconf.h pnglibconf.h
- rm -f '$(DESTDIR)$(pkgconfigdir)/libpng.pc'
+uninstall-library-links:
+ @set -x; cd '$(DESTDIR)$(libdir)'; for ext in $(EXT_LIST); do\
+ rm -f "libpng.$$ext"; done
+
+install-libpng-config:
+ @set -ex; cd '$(DESTDIR)$(bindir)'; rm -f libpng-config; \
+ $(LN_S) '$(PNGLIB_BASENAME)-config' libpng-config
+
+uninstall-libpng-config:
rm -f '$(DESTDIR)$(bindir)/libpng-config'
- rm -f '$(DESTDIR)$(libdir)/libpng.a'
- rm -f '$(DESTDIR)$(libdir)/libpng.la'
- rm -f '$(DESTDIR)$(libdir)/libpng.so'
- rm -f '$(DESTDIR)$(libdir)/libpng.so.@PNGLIB_MAJOR@@PNGLIB_MINOR@.@PNGLIB_RELEASE@'
- rm -f '$(DESTDIR)$(libdir)/libpng.sl'
- rm -f '$(DESTDIR)$(libdir)/libpng.dylib'
- rm -f '$(DESTDIR)$(libdir)/libpng.dll.a'
+
+if DO_INSTALL_LINKS
+# If --enable-unversioned-links is specified the header and lib file links
+# will be automatically made on a 'make install':
+
+install-data-hook: install-header-links
+uninstall-hook: uninstall-header-links
+install-exec-hook: install-library-links
+uninstall-hook: uninstall-library-links
+endif
+
+if DO_INSTALL_LIBPNG_PC
+# Likewise, --install-pc causes libpng.pc to be constructed:
+
+install-data-hook: install-libpng-pc
+uninstall-hook: uninstall-libpng-pc
+endif
+
+if DO_INSTALL_LIBPNG_CONFIG
+# And --install-config:
+
+install-exec-hook: install-libpng-config
+uninstall-hook: uninstall-libpng-config
+endif
+
+# The following addition ensures that 'make all' always builds the test programs
+# too. It used to, but some change either in libpng or configure stopped this
+# working.
+all-am: $(check_PROGRAMS)
diff --git a/Makefile.in b/Makefile.in
index 29e6632..aae2257 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -1,7 +1,7 @@
-# Makefile.in generated by automake 1.13 from Makefile.am.
+# Makefile.in generated by automake 1.14.1 from Makefile.am.
# @configure_input@
-# Copyright (C) 1994-2012 Free Software Foundation, Inc.
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -23,23 +23,51 @@
VPATH = @srcdir@
-am__make_dryrun = \
- { \
- am__dry=no; \
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+ case $${target_option-} in \
+ ?) ;; \
+ *) echo "am__make_running_with_option: internal error: invalid" \
+ "target option '$${target_option-}' specified" >&2; \
+ exit 1;; \
+ esac; \
+ has_opt=no; \
+ sane_makeflags=$$MAKEFLAGS; \
+ if $(am__is_gnu_make); then \
+ sane_makeflags=$$MFLAGS; \
+ else \
case $$MAKEFLAGS in \
*\\[\ \ ]*) \
- echo 'am--echo: ; @echo "AM" OK' | $(MAKE) -f - 2>/dev/null \
- | grep '^AM OK$$' >/dev/null || am__dry=yes;; \
- *) \
- for am__flg in $$MAKEFLAGS; do \
- case $$am__flg in \
- *=*|--*) ;; \
- *n*) am__dry=yes; break;; \
- esac; \
- done;; \
+ bs=\\; \
+ sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+ | sed "s/$$bs$$bs[$$bs $$bs ]*//g"`;; \
esac; \
- test $$am__dry = yes; \
- }
+ fi; \
+ skip_next=no; \
+ strip_trailopt () \
+ { \
+ flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+ }; \
+ for flg in $$sane_makeflags; do \
+ test $$skip_next = yes && { skip_next=no; continue; }; \
+ case $$flg in \
+ *=*|--*) continue;; \
+ -*I) strip_trailopt 'I'; skip_next=yes;; \
+ -*I?*) strip_trailopt 'I';; \
+ -*O) strip_trailopt 'O'; skip_next=yes;; \
+ -*O?*) strip_trailopt 'O';; \
+ -*l) strip_trailopt 'l'; skip_next=yes;; \
+ -*l?*) strip_trailopt 'l';; \
+ -[dEDm]) skip_next=yes;; \
+ -[JT]) skip_next=yes;; \
+ esac; \
+ case $$flg in \
+ *$$target_option*) has_opt=yes; break;; \
+ esac; \
+ done; \
+ test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
pkgdatadir = $(datadir)/@PACKAGE@
pkglibdir = $(libdir)/@PACKAGE@
pkglibexecdir = $(libexecdir)/@PACKAGE@
@@ -58,10 +86,10 @@
build_triplet = @build@
host_triplet = @host@
check_PROGRAMS = pngtest$(EXEEXT) pngunknown$(EXEEXT) \
- pngstest$(EXEEXT) pngvalid$(EXEEXT)
+ pngstest$(EXEEXT) pngvalid$(EXEEXT) pngimage$(EXEEXT)
bin_PROGRAMS = pngfix$(EXEEXT) png-fix-itxt$(EXEEXT)
@PNG_ARM_NEON_TRUE@am__append_1 = arm/arm_init.c\
-@PNG_ARM_NEON_TRUE@ arm/filter_neon.S
+@PNG_ARM_NEON_TRUE@ arm/filter_neon.S arm/filter_neon_intrinsics.c
# Versioned symbols and restricted exports
@@ -75,7 +103,7 @@
$(top_srcdir)/configure $(am__configure_deps) \
$(srcdir)/config.h.in $(srcdir)/libpng.pc.in \
$(srcdir)/libpng-config.in depcomp $(dist_man_MANS) \
- $(pkginclude_HEADERS) test-driver INSTALL README TODO \
+ $(pkginclude_HEADERS) test-driver INSTALL README TODO compile \
config.guess config.sub install-sh missing ltmain.sh
ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
am__aclocal_m4_deps = $(top_srcdir)/scripts/libtool.m4 \
@@ -130,8 +158,10 @@
pngrtran.c pngrutil.c pngset.c pngtrans.c pngwio.c pngwrite.c \
pngwtran.c pngwutil.c png.h pngconf.h pngdebug.h pnginfo.h \
pngpriv.h pngstruct.h pngusr.dfa arm/arm_init.c \
- arm/filter_neon.S
-@PNG_ARM_NEON_TRUE@am__objects_1 = arm_init.lo filter_neon.lo
+ arm/filter_neon.S arm/filter_neon_intrinsics.c
+am__dirstamp = $(am__leading_dot)dirstamp
+@PNG_ARM_NEON_TRUE@am__objects_1 = arm/arm_init.lo arm/filter_neon.lo \
+@PNG_ARM_NEON_TRUE@ arm/filter_neon_intrinsics.lo
am_libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_OBJECTS = png.lo pngerror.lo \
pngget.lo pngmem.lo pngpread.lo pngread.lo pngrio.lo \
pngrtran.lo pngrutil.lo pngset.lo pngtrans.lo pngwio.lo \
@@ -150,22 +180,25 @@
$(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS) $(LDFLAGS) -o \
$@
PROGRAMS = $(bin_PROGRAMS)
-am_png_fix_itxt_OBJECTS = png-fix-itxt.$(OBJEXT)
+am_png_fix_itxt_OBJECTS = contrib/tools/png-fix-itxt.$(OBJEXT)
png_fix_itxt_OBJECTS = $(am_png_fix_itxt_OBJECTS)
png_fix_itxt_LDADD = $(LDADD)
-am_pngfix_OBJECTS = pngfix.$(OBJEXT)
+am_pngfix_OBJECTS = contrib/tools/pngfix.$(OBJEXT)
pngfix_OBJECTS = $(am_pngfix_OBJECTS)
pngfix_DEPENDENCIES = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-am_pngstest_OBJECTS = pngstest.$(OBJEXT)
+am_pngimage_OBJECTS = contrib/libtests/pngimage.$(OBJEXT)
+pngimage_OBJECTS = $(am_pngimage_OBJECTS)
+pngimage_DEPENDENCIES = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
+am_pngstest_OBJECTS = contrib/libtests/pngstest.$(OBJEXT)
pngstest_OBJECTS = $(am_pngstest_OBJECTS)
pngstest_DEPENDENCIES = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
am_pngtest_OBJECTS = pngtest.$(OBJEXT)
pngtest_OBJECTS = $(am_pngtest_OBJECTS)
pngtest_DEPENDENCIES = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-am_pngunknown_OBJECTS = pngunknown.$(OBJEXT)
+am_pngunknown_OBJECTS = contrib/libtests/pngunknown.$(OBJEXT)
pngunknown_OBJECTS = $(am_pngunknown_OBJECTS)
pngunknown_DEPENDENCIES = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-am_pngvalid_OBJECTS = pngvalid.$(OBJEXT)
+am_pngvalid_OBJECTS = contrib/libtests/pngvalid.$(OBJEXT)
pngvalid_OBJECTS = $(am_pngvalid_OBJECTS)
pngvalid_DEPENDENCIES = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
SCRIPTS = $(bin_SCRIPTS)
@@ -215,12 +248,14 @@
am__v_CCLD_1 =
SOURCES = $(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES) \
$(nodist_libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES) \
- $(png_fix_itxt_SOURCES) $(pngfix_SOURCES) $(pngstest_SOURCES) \
- $(pngtest_SOURCES) $(pngunknown_SOURCES) $(pngvalid_SOURCES)
+ $(png_fix_itxt_SOURCES) $(pngfix_SOURCES) $(pngimage_SOURCES) \
+ $(pngstest_SOURCES) $(pngtest_SOURCES) $(pngunknown_SOURCES) \
+ $(pngvalid_SOURCES)
DIST_SOURCES = \
$(am__libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES_DIST) \
- $(png_fix_itxt_SOURCES) $(pngfix_SOURCES) $(pngstest_SOURCES) \
- $(pngtest_SOURCES) $(pngunknown_SOURCES) $(pngvalid_SOURCES)
+ $(png_fix_itxt_SOURCES) $(pngfix_SOURCES) $(pngimage_SOURCES) \
+ $(pngstest_SOURCES) $(pngtest_SOURCES) $(pngunknown_SOURCES) \
+ $(pngvalid_SOURCES)
am__can_run_installinfo = \
case $$AM_UPDATE_INFO_DIR in \
n|no|NO) false;; \
@@ -597,6 +632,16 @@
top_srcdir = @top_srcdir@
PNGLIB_BASENAME = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
ACLOCAL_AMFLAGS = -I scripts
+
+# This ensures that pnglibconf.h gets built at the start of 'make all' or
+# 'make check', but it does not add dependencies to the individual programs,
+# this is done below.
+#
+# IMPORTANT: always add the object modules of new programs to the list below
+# because otherwise the sequence 'configure; make new-program' will *sometimes*
+# result in the installed (system) pnglibconf.h being used and the result is
+# always wrong and always very confusing.
+BUILT_SOURCES = pnglibconf.h
pngtest_SOURCES = pngtest.c
pngtest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
pngvalid_SOURCES = contrib/libtests/pngvalid.c
@@ -605,6 +650,8 @@
pngstest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
pngunknown_SOURCES = contrib/libtests/pngunknown.c
pngunknown_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
+pngimage_SOURCES = contrib/libtests/pngimage.c
+pngimage_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
pngfix_SOURCES = contrib/tools/pngfix.c
pngfix_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
png_fix_itxt_SOURCES = contrib/tools/png-fix-itxt.c
@@ -629,7 +676,8 @@
tests/pngstest-4a16 tests/pngstest-6a08 tests/pngstest-6a16\
tests/pngstest-error tests/pngunknown-IDAT\
tests/pngunknown-discard tests/pngunknown-if-safe tests/pngunknown-sAPI\
- tests/pngunknown-sTER tests/pngunknown-save tests/pngunknown-vpAg
+ tests/pngunknown-sTER tests/pngunknown-save tests/pngunknown-vpAg\
+ tests/pngimage-quick tests/pngimage-full
# These tests are expected, and required, to fail:
@@ -688,7 +736,13 @@
-DPNGLIB_VERSION='@PNGLIB_VERSION@' \
-DSYMBOL_PREFIX='$(SYMBOL_PREFIX)' -DPNG_NO_USE_READ_MACROS \
-DPNG_BUILDING_SYMBOL_TABLE $(am__append_5)
-all: config.h
+
+# EXT_LIST is a list of the possibly library directory extensions, this exists
+# because we can't find a good way of discovering the file extensions that are
+# actually installed on a given system, so instead we check for every extension
+# we have seen.
+EXT_LIST = a dll.a so so.@PNGLIB_MAJOR@@PNGLIB_MINOR@.@PNGLIB_RELEASE@ la sl dylib
+all: $(BUILT_SOURCES) config.h
$(MAKE) $(AM_MAKEFLAGS) all-am
.SUFFIXES:
@@ -729,8 +783,8 @@
$(am__aclocal_m4_deps):
config.h: stamp-h1
- @if test ! -f $@; then rm -f stamp-h1; else :; fi
- @if test ! -f $@; then $(MAKE) $(AM_MAKEFLAGS) stamp-h1; else :; fi
+ @test -f $@ || rm -f stamp-h1
+ @test -f $@ || $(MAKE) $(AM_MAKEFLAGS) stamp-h1
stamp-h1: $(srcdir)/config.h.in $(top_builddir)/config.status
@rm -f stamp-h1
@@ -781,6 +835,17 @@
echo rm -f $${locs}; \
rm -f $${locs}; \
}
+arm/$(am__dirstamp):
+ @$(MKDIR_P) arm
+ @: > arm/$(am__dirstamp)
+arm/$(DEPDIR)/$(am__dirstamp):
+ @$(MKDIR_P) arm/$(DEPDIR)
+ @: > arm/$(DEPDIR)/$(am__dirstamp)
+arm/arm_init.lo: arm/$(am__dirstamp) arm/$(DEPDIR)/$(am__dirstamp)
+arm/filter_neon.lo: arm/$(am__dirstamp) arm/$(DEPDIR)/$(am__dirstamp)
+arm/filter_neon_intrinsics.lo: arm/$(am__dirstamp) \
+ arm/$(DEPDIR)/$(am__dirstamp)
+
libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la: $(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_OBJECTS) $(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES) $(EXTRA_libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES)
$(AM_V_CCLD)$(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LINK) -rpath $(libdir) $(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_OBJECTS) $(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LIBADD) $(LIBS)
install-binPROGRAMS: $(bin_PROGRAMS)
@@ -841,21 +906,56 @@
list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
echo " rm -f" $$list; \
rm -f $$list
+contrib/tools/$(am__dirstamp):
+ @$(MKDIR_P) contrib/tools
+ @: > contrib/tools/$(am__dirstamp)
+contrib/tools/$(DEPDIR)/$(am__dirstamp):
+ @$(MKDIR_P) contrib/tools/$(DEPDIR)
+ @: > contrib/tools/$(DEPDIR)/$(am__dirstamp)
+contrib/tools/png-fix-itxt.$(OBJEXT): contrib/tools/$(am__dirstamp) \
+ contrib/tools/$(DEPDIR)/$(am__dirstamp)
+
png-fix-itxt$(EXEEXT): $(png_fix_itxt_OBJECTS) $(png_fix_itxt_DEPENDENCIES) $(EXTRA_png_fix_itxt_DEPENDENCIES)
@rm -f png-fix-itxt$(EXEEXT)
$(AM_V_CCLD)$(LINK) $(png_fix_itxt_OBJECTS) $(png_fix_itxt_LDADD) $(LIBS)
+contrib/tools/pngfix.$(OBJEXT): contrib/tools/$(am__dirstamp) \
+ contrib/tools/$(DEPDIR)/$(am__dirstamp)
+
pngfix$(EXEEXT): $(pngfix_OBJECTS) $(pngfix_DEPENDENCIES) $(EXTRA_pngfix_DEPENDENCIES)
@rm -f pngfix$(EXEEXT)
$(AM_V_CCLD)$(LINK) $(pngfix_OBJECTS) $(pngfix_LDADD) $(LIBS)
+contrib/libtests/$(am__dirstamp):
+ @$(MKDIR_P) contrib/libtests
+ @: > contrib/libtests/$(am__dirstamp)
+contrib/libtests/$(DEPDIR)/$(am__dirstamp):
+ @$(MKDIR_P) contrib/libtests/$(DEPDIR)
+ @: > contrib/libtests/$(DEPDIR)/$(am__dirstamp)
+contrib/libtests/pngimage.$(OBJEXT): contrib/libtests/$(am__dirstamp) \
+ contrib/libtests/$(DEPDIR)/$(am__dirstamp)
+
+pngimage$(EXEEXT): $(pngimage_OBJECTS) $(pngimage_DEPENDENCIES) $(EXTRA_pngimage_DEPENDENCIES)
+ @rm -f pngimage$(EXEEXT)
+ $(AM_V_CCLD)$(LINK) $(pngimage_OBJECTS) $(pngimage_LDADD) $(LIBS)
+contrib/libtests/pngstest.$(OBJEXT): contrib/libtests/$(am__dirstamp) \
+ contrib/libtests/$(DEPDIR)/$(am__dirstamp)
+
pngstest$(EXEEXT): $(pngstest_OBJECTS) $(pngstest_DEPENDENCIES) $(EXTRA_pngstest_DEPENDENCIES)
@rm -f pngstest$(EXEEXT)
$(AM_V_CCLD)$(LINK) $(pngstest_OBJECTS) $(pngstest_LDADD) $(LIBS)
+
pngtest$(EXEEXT): $(pngtest_OBJECTS) $(pngtest_DEPENDENCIES) $(EXTRA_pngtest_DEPENDENCIES)
@rm -f pngtest$(EXEEXT)
$(AM_V_CCLD)$(LINK) $(pngtest_OBJECTS) $(pngtest_LDADD) $(LIBS)
+contrib/libtests/pngunknown.$(OBJEXT): \
+ contrib/libtests/$(am__dirstamp) \
+ contrib/libtests/$(DEPDIR)/$(am__dirstamp)
+
pngunknown$(EXEEXT): $(pngunknown_OBJECTS) $(pngunknown_DEPENDENCIES) $(EXTRA_pngunknown_DEPENDENCIES)
@rm -f pngunknown$(EXEEXT)
$(AM_V_CCLD)$(LINK) $(pngunknown_OBJECTS) $(pngunknown_LDADD) $(LIBS)
+contrib/libtests/pngvalid.$(OBJEXT): contrib/libtests/$(am__dirstamp) \
+ contrib/libtests/$(DEPDIR)/$(am__dirstamp)
+
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-@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o pngvalid.o `test -f 'contrib/libtests/pngvalid.c' || echo '$(srcdir)/'`contrib/libtests/pngvalid.c
-
-pngvalid.obj: contrib/libtests/pngvalid.c
-@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT pngvalid.obj -MD -MP -MF $(DEPDIR)/pngvalid.Tpo -c -o pngvalid.obj `if test -f 'contrib/libtests/pngvalid.c'; then $(CYGPATH_W) 'contrib/libtests/pngvalid.c'; else $(CYGPATH_W) '$(srcdir)/contrib/libtests/pngvalid.c'; fi`
-@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) $(DEPDIR)/pngvalid.Tpo $(DEPDIR)/pngvalid.Po
-@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='contrib/libtests/pngvalid.c' object='pngvalid.obj' libtool=no @AMDEPBACKSLASH@
-@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o pngvalid.obj `if test -f 'contrib/libtests/pngvalid.c'; then $(CYGPATH_W) 'contrib/libtests/pngvalid.c'; else $(CYGPATH_W) '$(srcdir)/contrib/libtests/pngvalid.c'; fi`
-
mostlyclean-libtool:
-rm -f *.lo
clean-libtool:
-rm -rf .libs _libs
+ -rm -rf arm/.libs arm/_libs
distclean-libtool:
-rm -f libtool config.lt
@@ -1277,7 +1306,7 @@
$(MAKE) $(AM_MAKEFLAGS) $<
# Leading 'am--fnord' is there to ensure the list of targets does not
-# exand to empty, as could happen e.g. with make check TESTS=''.
+# expand to empty, as could happen e.g. with make check TESTS=''.
am--fnord $(TEST_LOGS) $(TEST_LOGS:.log=.trs): $(am__force_recheck)
am--force-recheck:
@:
@@ -1675,6 +1704,20 @@
--log-file $$b.log --trs-file $$b.trs \
$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
"$$tst" $(AM_TESTS_FD_REDIRECT)
+tests/pngimage-quick.log: tests/pngimage-quick
+ @p='tests/pngimage-quick'; \
+ b='tests/pngimage-quick'; \
+ $(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+ --log-file $$b.log --trs-file $$b.trs \
+ $(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+ "$$tst" $(AM_TESTS_FD_REDIRECT)
+tests/pngimage-full.log: tests/pngimage-full
+ @p='tests/pngimage-full'; \
+ b='tests/pngimage-full'; \
+ $(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+ --log-file $$b.log --trs-file $$b.trs \
+ $(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+ "$$tst" $(AM_TESTS_FD_REDIRECT)
.test.log:
@p='$<'; \
$(am__set_b); \
@@ -1748,10 +1791,16 @@
$(am__post_remove_distdir)
dist-tarZ: distdir
+ @echo WARNING: "Support for shar distribution archives is" \
+ "deprecated." >&2
+ @echo WARNING: "It will be removed altogether in Automake 2.0" >&2
tardir=$(distdir) && $(am__tar) | compress -c >$(distdir).tar.Z
$(am__post_remove_distdir)
dist-shar: distdir
+ @echo WARNING: "Support for distribution archives compressed with" \
+ "legacy program 'compress' is deprecated." >&2
+ @echo WARNING: "It will be removed altogether in Automake 2.0" >&2
shar $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).shar.gz
$(am__post_remove_distdir)
@@ -1793,9 +1842,10 @@
&& dc_destdir="$${TMPDIR-/tmp}/am-dc-$$$$/" \
&& am__cwd=`pwd` \
&& $(am__cd) $(distdir)/_build \
- && ../configure --srcdir=.. --prefix="$$dc_install_base" \
+ && ../configure \
$(AM_DISTCHECK_CONFIGURE_FLAGS) \
$(DISTCHECK_CONFIGURE_FLAGS) \
+ --srcdir=.. --prefix="$$dc_install_base" \
&& $(MAKE) $(AM_MAKEFLAGS) \
&& $(MAKE) $(AM_MAKEFLAGS) dvi \
&& $(MAKE) $(AM_MAKEFLAGS) check \
@@ -1851,7 +1901,8 @@
check-am: all-am
$(MAKE) $(AM_MAKEFLAGS) $(check_PROGRAMS)
$(MAKE) $(AM_MAKEFLAGS) check-TESTS
-check: check-am
+check: $(BUILT_SOURCES)
+ $(MAKE) $(AM_MAKEFLAGS) check-am
all-am: Makefile $(LTLIBRARIES) $(PROGRAMS) $(SCRIPTS) $(MANS) $(DATA) \
$(HEADERS) config.h
install-binPROGRAMS: install-libLTLIBRARIES
@@ -1860,7 +1911,8 @@
for dir in "$(DESTDIR)$(libdir)" "$(DESTDIR)$(bindir)" "$(DESTDIR)$(bindir)" "$(DESTDIR)$(man3dir)" "$(DESTDIR)$(man5dir)" "$(DESTDIR)$(pkgconfigdir)" "$(DESTDIR)$(pkgincludedir)" "$(DESTDIR)$(pkgincludedir)"; do \
test -z "$$dir" || $(MKDIR_P) "$$dir"; \
done
-install: install-am
+install: $(BUILT_SOURCES)
+ $(MAKE) $(AM_MAKEFLAGS) install-am
install-exec: install-exec-am
install-data: install-data-am
uninstall: uninstall-am
@@ -1890,11 +1942,21 @@
distclean-generic:
-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+ -rm -f arm/$(DEPDIR)/$(am__dirstamp)
+ -rm -f arm/$(am__dirstamp)
+ -rm -f contrib/libtests/$(DEPDIR)/$(am__dirstamp)
+ -rm -f contrib/libtests/$(am__dirstamp)
+ -rm -f contrib/tools/$(DEPDIR)/$(am__dirstamp)
+ -rm -f contrib/tools/$(am__dirstamp)
maintainer-clean-generic:
@echo "This command is intended for maintainers to use"
@echo "it deletes files that may require special tools to rebuild."
+ -test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES)
-test -z "$(MAINTAINERCLEANFILES)" || rm -f $(MAINTAINERCLEANFILES)
+@DO_INSTALL_LIBPNG_CONFIG_FALSE@@DO_INSTALL_LINKS_FALSE@install-exec-hook:
+@DO_INSTALL_LIBPNG_PC_FALSE@@DO_INSTALL_LINKS_FALSE@install-data-hook:
+@DO_INSTALL_LIBPNG_CONFIG_FALSE@@DO_INSTALL_LIBPNG_PC_FALSE@@DO_INSTALL_LINKS_FALSE@uninstall-hook:
clean: clean-am
clean-am: clean-binPROGRAMS clean-checkPROGRAMS clean-generic \
@@ -1902,7 +1964,7 @@
distclean: distclean-am
-rm -f $(am__CONFIG_DISTCLEAN_FILES)
- -rm -rf ./$(DEPDIR)
+ -rm -rf ./$(DEPDIR) arm/$(DEPDIR) contrib/libtests/$(DEPDIR) contrib/tools/$(DEPDIR)
-rm -f Makefile
distclean-am: clean-am distclean-compile distclean-generic \
distclean-hdr distclean-libtool distclean-tags
@@ -1954,7 +2016,7 @@
maintainer-clean: maintainer-clean-am
-rm -f $(am__CONFIG_DISTCLEAN_FILES)
-rm -rf $(top_srcdir)/autom4te.cache
- -rm -rf ./$(DEPDIR)
+ -rm -rf ./$(DEPDIR) arm/$(DEPDIR) contrib/libtests/$(DEPDIR) contrib/tools/$(DEPDIR)
-rm -f Makefile
maintainer-clean-am: distclean-am maintainer-clean-generic
@@ -1979,8 +2041,8 @@
$(MAKE) $(AM_MAKEFLAGS) uninstall-hook
uninstall-man: uninstall-man3 uninstall-man5
-.MAKE: all check-am install-am install-data-am install-exec-am \
- install-strip uninstall-am
+.MAKE: all check check-am install install-am install-data-am \
+ install-exec-am install-strip uninstall-am
.PHONY: CTAGS GTAGS TAGS all all-am am--refresh check check-TESTS \
check-am clean clean-binPROGRAMS clean-checkPROGRAMS \
@@ -2060,9 +2122,22 @@
# The following is necessary to ensure that the local pnglibconf.h is used, not
# an installed one (this can happen immediately after on a clean system if
-# 'make test' is the first thing the user does.)
-pngstest.o pngvalid.o pngtest.o pngunknown.o timepng.o: pnglibconf.h
-pngfix.o png-fix-itxt.o: pnglibconf.h
+# 'make test' is the first thing the user does.) Only files which include
+# one of the png source files (typically png.h or pngpriv.h) need to be listed
+# here:
+pngtest.o: pnglibconf.h
+
+contrib/libtests/makepng.o: pnglibconf.h
+contrib/libtests/pngstest.o: pnglibconf.h
+contrib/libtests/pngunknown.o: pnglibconf.h
+contrib/libtests/pngimage.o: pnglibconf.h
+contrib/libtests/pngvalid.o: pnglibconf.h
+contrib/libtests/readpng.o: pnglibconf.h
+contrib/libtests/tarith.o: pnglibconf.h
+contrib/libtests/timepng.o: pnglibconf.h
+
+contrib/tools/makesRGB.o: pnglibconf.h
+contrib/tools/pngfix.o: pnglibconf.h
.dfn.out:
rm -f $@ $*.c $*.tf[12]
@@ -2119,43 +2194,66 @@
dist-hook:
cd '$(top_distdir)'; rm -f $(SCRIPT_CLEANFILES)
-# install the .../include headers as links to the new ones
-install-data-hook:
- cd '$(DESTDIR)$(includedir)'; rm -f png.h pngconf.h pnglibconf.h
- cd '$(DESTDIR)$(includedir)'; $(LN_S) $(PNGLIB_BASENAME)/png.h png.h
- cd '$(DESTDIR)$(includedir)'; $(LN_S) $(PNGLIB_BASENAME)/pngconf.h \
- pngconf.h
- cd '$(DESTDIR)$(includedir)'; $(LN_S) $(PNGLIB_BASENAME)/pnglibconf.h \
- pnglibconf.h
- cd '$(DESTDIR)$(pkgconfigdir)'; rm -f libpng.pc
- cd '$(DESTDIR)$(pkgconfigdir)'; $(LN_S) $(PNGLIB_BASENAME).pc libpng.pc
+# Make links between installed files with release-specific names and the generic
+# file names. If this install rule is run the generic names will be deleted and
+# recreated - this has obvious issues for systems with multiple installations.
-# do evil things to libpng to cause libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@ to be used
-install-exec-hook:
- cd '$(DESTDIR)$(bindir)'; rm -f libpng-config
- cd '$(DESTDIR)$(bindir)';\
- $(LN_S) $(PNGLIB_BASENAME)-config libpng-config
- @set -x;\
- cd '$(DESTDIR)$(libdir)';\
- for ext in a la so so.@PNGLIB_MAJOR@@PNGLIB_MINOR@.@PNGLIB_RELEASE@\
- sl dylib dll.a; do\
- rm -f libpng.$$ext;\
- if test -f $(PNGLIB_BASENAME).$$ext; then\
- $(LN_S) $(PNGLIB_BASENAME).$$ext libpng.$$ext;\
- fi;\
+install-header-links:
+ @set -ex; cd '$(DESTDIR)$(includedir)'; for f in $(HEADERS); do \
+ rm -f "$$f"; $(LN_S) "$(PNGLIB_BASENAME)/$$f" "$$f"; done
+
+uninstall-header-links:
+ cd '$(DESTDIR)$(includedir)'; rm -f $(HEADERS)
+
+install-libpng-pc:
+ @set -ex; cd '$(DESTDIR)$(pkgconfigdir)'; rm -f libpng.pc; \
+ $(LN_S) '$(PNGLIB_BASENAME).pc' libpng.pc
+
+uninstall-libpng-pc:
+ rm -f '$(DESTDIR)$(pkgconfigdir)/libpng.pc'
+
+install-library-links:
+ @set -x; cd '$(DESTDIR)$(libdir)';\
+ for ext in $(EXT_LIST); do\
+ rm -f "libpng.$$ext";\
+ if test -f "$(PNGLIB_BASENAME).$$ext"; then\
+ $(LN_S) "$(PNGLIB_BASENAME).$$ext" "libpng.$$ext" || exit 1;\
+ fi;\
done
-uninstall-hook:
- cd '$(DESTDIR)$(includedir)'; rm -f png.h pngconf.h pnglibconf.h
- rm -f '$(DESTDIR)$(pkgconfigdir)/libpng.pc'
+uninstall-library-links:
+ @set -x; cd '$(DESTDIR)$(libdir)'; for ext in $(EXT_LIST); do\
+ rm -f "libpng.$$ext"; done
+
+install-libpng-config:
+ @set -ex; cd '$(DESTDIR)$(bindir)'; rm -f libpng-config; \
+ $(LN_S) '$(PNGLIB_BASENAME)-config' libpng-config
+
+uninstall-libpng-config:
rm -f '$(DESTDIR)$(bindir)/libpng-config'
- rm -f '$(DESTDIR)$(libdir)/libpng.a'
- rm -f '$(DESTDIR)$(libdir)/libpng.la'
- rm -f '$(DESTDIR)$(libdir)/libpng.so'
- rm -f '$(DESTDIR)$(libdir)/libpng.so.@PNGLIB_MAJOR@@PNGLIB_MINOR@.@PNGLIB_RELEASE@'
- rm -f '$(DESTDIR)$(libdir)/libpng.sl'
- rm -f '$(DESTDIR)$(libdir)/libpng.dylib'
- rm -f '$(DESTDIR)$(libdir)/libpng.dll.a'
+
+# If --enable-unversioned-links is specified the header and lib file links
+# will be automatically made on a 'make install':
+
+@DO_INSTALL_LINKS_TRUE@install-data-hook: install-header-links
+@DO_INSTALL_LINKS_TRUE@uninstall-hook: uninstall-header-links
+@DO_INSTALL_LINKS_TRUE@install-exec-hook: install-library-links
+@DO_INSTALL_LINKS_TRUE@uninstall-hook: uninstall-library-links
+
+# Likewise, --install-pc causes libpng.pc to be constructed:
+
+@DO_INSTALL_LIBPNG_PC_TRUE@install-data-hook: install-libpng-pc
+@DO_INSTALL_LIBPNG_PC_TRUE@uninstall-hook: uninstall-libpng-pc
+
+# And --install-config:
+
+@DO_INSTALL_LIBPNG_CONFIG_TRUE@install-exec-hook: install-libpng-config
+@DO_INSTALL_LIBPNG_CONFIG_TRUE@uninstall-hook: uninstall-libpng-config
+
+# The following addition ensures that 'make all' always builds the test programs
+# too. It used to, but some change either in libpng or configure stopped this
+# working.
+all-am: $(check_PROGRAMS)
# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
diff --git a/README b/README
index 6333499..57f287b 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.6.3 - July 18, 2013 (shared library 16.0)
+README for libpng version 1.6.10 - March 6, 2014 (shared library 16.0)
See the note about version numbers near the top of png.h
See INSTALL for instructions on how to install libpng.
@@ -121,7 +121,7 @@
to others, if necessary.
Please do not send suggestions on how to change PNG. We have
-been discussing PNG for eighteen years now, and it is official and
+been discussing PNG for nineteen years now, and it is official and
finished. If you have suggestions for libpng, however, I'll
gladly listen. Even if your suggestion is not used immediately,
it may be used later.
diff --git a/TODO b/TODO
index 6e1f028..63613b8 100644
--- a/TODO
+++ b/TODO
@@ -10,6 +10,7 @@
Improved dithering.
Multi-lingual error and warning message support.
Complete sRGB transformation (presently it simply uses gamma=0.45455).
+Make profile checking optional via a png_set_something() call.
Man pages for function calls.
Better documentation.
Better filter selection
diff --git a/aclocal.m4 b/aclocal.m4
index c2233b7..30f6452 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,6 +1,6 @@
-# generated automatically by aclocal 1.13 -*- Autoconf -*-
+# generated automatically by aclocal 1.14.1 -*- Autoconf -*-
-# Copyright (C) 1996-2012 Free Software Foundation, Inc.
+# Copyright (C) 1996-2013 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -20,7 +20,7 @@
If you have problems, you may need to regenerate the build system entirely.
To do so, use the procedure documented by the package, typically 'autoreconf'.])])
-# Copyright (C) 2002-2012 Free Software Foundation, Inc.
+# Copyright (C) 2002-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -32,10 +32,10 @@
# generated from the m4 files accompanying Automake X.Y.
# (This private macro should not be called outside this file.)
AC_DEFUN([AM_AUTOMAKE_VERSION],
-[am__api_version='1.13'
+[am__api_version='1.14'
dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
dnl require some minimum version. Point them to the right macro.
-m4_if([$1], [1.13], [],
+m4_if([$1], [1.14.1], [],
[AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
])
@@ -51,14 +51,14 @@
# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
-[AM_AUTOMAKE_VERSION([1.13])dnl
+[AM_AUTOMAKE_VERSION([1.14.1])dnl
m4_ifndef([AC_AUTOCONF_VERSION],
[m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
# Figure out how to run the assembler. -*- Autoconf -*-
-# Copyright (C) 2001-2012 Free Software Foundation, Inc.
+# Copyright (C) 2001-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -78,7 +78,7 @@
# AM_AUX_DIR_EXPAND -*- Autoconf -*-
-# Copyright (C) 2001-2012 Free Software Foundation, Inc.
+# Copyright (C) 2001-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -131,7 +131,7 @@
# AM_CONDITIONAL -*- Autoconf -*-
-# Copyright (C) 1997-2012 Free Software Foundation, Inc.
+# Copyright (C) 1997-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -162,7 +162,7 @@
Usually this means the macro was only invoked conditionally.]])
fi])])
-# Copyright (C) 1999-2012 Free Software Foundation, Inc.
+# Copyright (C) 1999-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -353,7 +353,7 @@
# Generate code to set up dependency tracking. -*- Autoconf -*-
-# Copyright (C) 1999-2012 Free Software Foundation, Inc.
+# Copyright (C) 1999-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -393,7 +393,7 @@
DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
test -z "$DEPDIR" && continue
am__include=`sed -n 's/^am__include = //p' < "$mf"`
- test -z "am__include" && continue
+ test -z "$am__include" && continue
am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
# Find all dependency output files, they are included files with
# $(DEPDIR) in their names. We invoke sed twice because it is the
@@ -429,7 +429,7 @@
# Do all the work for Automake. -*- Autoconf -*-
-# Copyright (C) 1996-2012 Free Software Foundation, Inc.
+# Copyright (C) 1996-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -438,6 +438,12 @@
# This macro actually does too much. Some checks are only needed if
# your package does certain things. But this isn't really a big deal.
+dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
+m4_define([AC_PROG_CC],
+m4_defn([AC_PROG_CC])
+[_AM_PROG_CC_C_O
+])
+
# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
# AM_INIT_AUTOMAKE([OPTIONS])
# -----------------------------------------------
@@ -546,7 +552,48 @@
AC_CONFIG_COMMANDS_PRE(dnl
[m4_provide_if([_AM_COMPILER_EXEEXT],
[AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
-])
+
+# POSIX will say in a future version that running "rm -f" with no argument
+# is OK; and we want to be able to make that assumption in our Makefile
+# recipes. So use an aggressive probe to check that the usage we want is
+# actually supported "in the wild" to an acceptable degree.
+# See automake bug#10828.
+# To make any issue more visible, cause the running configure to be aborted
+# by default if the 'rm' program in use doesn't match our expectations; the
+# user can still override this though.
+if rm -f && rm -fr && rm -rf; then : OK; else
+ cat >&2 <<'END'
+Oops!
+
+Your 'rm' program seems unable to run without file operands specified
+on the command line, even when the '-f' option is present. This is contrary
+to the behaviour of most rm programs out there, and not conforming with
+the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
+
+Please tell bug-automake@gnu.org about your system, including the value
+of your $PATH and any error possibly output before this message. This
+can help us improve future automake versions.
+
+END
+ if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
+ echo 'Configuration will proceed anyway, since you have set the' >&2
+ echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
+ echo >&2
+ else
+ cat >&2 <<'END'
+Aborting the configuration process, to ensure you take notice of the issue.
+
+You can download and install GNU coreutils to get an 'rm' implementation
+that behaves properly: <http://www.gnu.org/software/coreutils/>.
+
+If you want to complete the configuration process using your problematic
+'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
+to "yes", and re-run configure.
+
+END
+ AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
+ fi
+fi])
dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
@@ -554,7 +601,6 @@
m4_define([_AC_COMPILER_EXEEXT],
m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
-
# When config.status generates a header, we must update the stamp-h file.
# This file resides in the same directory as the config header
# that is generated. The stamp files are numbered to have different names.
@@ -576,7 +622,7 @@
done
echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
-# Copyright (C) 2001-2012 Free Software Foundation, Inc.
+# Copyright (C) 2001-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -597,7 +643,7 @@
fi
AC_SUBST([install_sh])])
-# Copyright (C) 2003-2012 Free Software Foundation, Inc.
+# Copyright (C) 2003-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -619,7 +665,7 @@
# Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
# From Jim Meyering
-# Copyright (C) 1996-2012 Free Software Foundation, Inc.
+# Copyright (C) 1996-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -654,7 +700,7 @@
# Check to see how 'make' treats includes. -*- Autoconf -*-
-# Copyright (C) 2001-2012 Free Software Foundation, Inc.
+# Copyright (C) 2001-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -704,7 +750,7 @@
# Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
-# Copyright (C) 1997-2012 Free Software Foundation, Inc.
+# Copyright (C) 1997-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -743,7 +789,7 @@
# Helper functions for option handling. -*- Autoconf -*-
-# Copyright (C) 2001-2012 Free Software Foundation, Inc.
+# Copyright (C) 2001-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -772,9 +818,73 @@
AC_DEFUN([_AM_IF_OPTION],
[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
+# Copyright (C) 1999-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_PROG_CC_C_O
+# ---------------
+# Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
+# to automatically call this.
+AC_DEFUN([_AM_PROG_CC_C_O],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+AC_REQUIRE_AUX_FILE([compile])dnl
+AC_LANG_PUSH([C])dnl
+AC_CACHE_CHECK(
+ [whether $CC understands -c and -o together],
+ [am_cv_prog_cc_c_o],
+ [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
+ # Make sure it works both with $CC and with simple cc.
+ # Following AC_PROG_CC_C_O, we do the test twice because some
+ # compilers refuse to overwrite an existing .o file with -o,
+ # though they will create one.
+ am_cv_prog_cc_c_o=yes
+ for am_i in 1 2; do
+ if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
+ && test -f conftest2.$ac_objext; then
+ : OK
+ else
+ am_cv_prog_cc_c_o=no
+ break
+ fi
+ done
+ rm -f core conftest*
+ unset am_i])
+if test "$am_cv_prog_cc_c_o" != yes; then
+ # Losing compiler, so override with the script.
+ # FIXME: It is wrong to rewrite CC.
+ # But if we don't then we get into trouble of one sort or another.
+ # A longer-term fix would be to have automake use am__CC in this case,
+ # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
+ CC="$am_aux_dir/compile $CC"
+fi
+AC_LANG_POP([C])])
+
+# For backward compatibility.
+AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
+
+# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_RUN_LOG(COMMAND)
+# -------------------
+# Run COMMAND, save the exit status in ac_status, and log it.
+# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
+AC_DEFUN([AM_RUN_LOG],
+[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
+ ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+ (exit $ac_status); }])
+
# Check to make sure that the build environment is sane. -*- Autoconf -*-
-# Copyright (C) 1996-2012 Free Software Foundation, Inc.
+# Copyright (C) 1996-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -855,7 +965,7 @@
rm -f conftest.file
])
-# Copyright (C) 2009-2012 Free Software Foundation, Inc.
+# Copyright (C) 2009-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -915,7 +1025,7 @@
_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
])
-# Copyright (C) 2001-2012 Free Software Foundation, Inc.
+# Copyright (C) 2001-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -943,7 +1053,7 @@
INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
AC_SUBST([INSTALL_STRIP_PROGRAM])])
-# Copyright (C) 2006-2012 Free Software Foundation, Inc.
+# Copyright (C) 2006-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -962,7 +1072,7 @@
# Check how to create a tarball. -*- Autoconf -*-
-# Copyright (C) 2004-2012 Free Software Foundation, Inc.
+# Copyright (C) 2004-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@@ -981,76 +1091,114 @@
# Substitute a variable $(am__untar) that extract such
# a tarball read from stdin.
# $(am__untar) < result.tar
+#
AC_DEFUN([_AM_PROG_TAR],
[# Always define AMTAR for backward compatibility. Yes, it's still used
# in the wild :-( We should find a proper way to deprecate it ...
AC_SUBST([AMTAR], ['$${TAR-tar}'])
-m4_if([$1], [v7],
- [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
- [m4_case([$1], [ustar],, [pax],,
- [m4_fatal([Unknown tar format])])
-AC_MSG_CHECKING([how to create a $1 tar archive])
-# Loop over all known methods to create a tar archive until one works.
+
+# We'll loop over all known methods to create a tar archive until one works.
_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
-_am_tools=${am_cv_prog_tar_$1-$_am_tools}
-# Do not fold the above two line into one, because Tru64 sh and
-# Solaris sh will not grok spaces in the rhs of '-'.
-for _am_tool in $_am_tools
-do
- case $_am_tool in
- gnutar)
- for _am_tar in tar gnutar gtar;
- do
- AM_RUN_LOG([$_am_tar --version]) && break
- done
- am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
- am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
- am__untar="$_am_tar -xf -"
- ;;
- plaintar)
- # Must skip GNU tar: if it does not support --format= it doesn't create
- # ustar tarball either.
- (tar --version) >/dev/null 2>&1 && continue
- am__tar='tar chf - "$$tardir"'
- am__tar_='tar chf - "$tardir"'
- am__untar='tar xf -'
- ;;
- pax)
- am__tar='pax -L -x $1 -w "$$tardir"'
- am__tar_='pax -L -x $1 -w "$tardir"'
- am__untar='pax -r'
- ;;
- cpio)
- am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
- am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
- am__untar='cpio -i -H $1 -d'
- ;;
- none)
- am__tar=false
- am__tar_=false
- am__untar=false
- ;;
- esac
- # If the value was cached, stop now. We just wanted to have am__tar
- # and am__untar set.
- test -n "${am_cv_prog_tar_$1}" && break
+m4_if([$1], [v7],
+ [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
- # tar/untar a dummy directory, and stop if the command works
+ [m4_case([$1],
+ [ustar],
+ [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
+ # There is notably a 21 bits limit for the UID and the GID. In fact,
+ # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
+ # and bug#13588).
+ am_max_uid=2097151 # 2^21 - 1
+ am_max_gid=$am_max_uid
+ # The $UID and $GID variables are not portable, so we need to resort
+ # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
+ # below are definitely unexpected, so allow the users to see them
+ # (that is, avoid stderr redirection).
+ am_uid=`id -u || echo unknown`
+ am_gid=`id -g || echo unknown`
+ AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
+ if test $am_uid -le $am_max_uid; then
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ _am_tools=none
+ fi
+ AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
+ if test $am_gid -le $am_max_gid; then
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ _am_tools=none
+ fi],
+
+ [pax],
+ [],
+
+ [m4_fatal([Unknown tar format])])
+
+ AC_MSG_CHECKING([how to create a $1 tar archive])
+
+ # Go ahead even if we have the value already cached. We do so because we
+ # need to set the values for the 'am__tar' and 'am__untar' variables.
+ _am_tools=${am_cv_prog_tar_$1-$_am_tools}
+
+ for _am_tool in $_am_tools; do
+ case $_am_tool in
+ gnutar)
+ for _am_tar in tar gnutar gtar; do
+ AM_RUN_LOG([$_am_tar --version]) && break
+ done
+ am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
+ am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
+ am__untar="$_am_tar -xf -"
+ ;;
+ plaintar)
+ # Must skip GNU tar: if it does not support --format= it doesn't create
+ # ustar tarball either.
+ (tar --version) >/dev/null 2>&1 && continue
+ am__tar='tar chf - "$$tardir"'
+ am__tar_='tar chf - "$tardir"'
+ am__untar='tar xf -'
+ ;;
+ pax)
+ am__tar='pax -L -x $1 -w "$$tardir"'
+ am__tar_='pax -L -x $1 -w "$tardir"'
+ am__untar='pax -r'
+ ;;
+ cpio)
+ am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
+ am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
+ am__untar='cpio -i -H $1 -d'
+ ;;
+ none)
+ am__tar=false
+ am__tar_=false
+ am__untar=false
+ ;;
+ esac
+
+ # If the value was cached, stop now. We just wanted to have am__tar
+ # and am__untar set.
+ test -n "${am_cv_prog_tar_$1}" && break
+
+ # tar/untar a dummy directory, and stop if the command works.
+ rm -rf conftest.dir
+ mkdir conftest.dir
+ echo GrepMe > conftest.dir/file
+ AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
+ rm -rf conftest.dir
+ if test -s conftest.tar; then
+ AM_RUN_LOG([$am__untar <conftest.tar])
+ AM_RUN_LOG([cat conftest.dir/file])
+ grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
+ fi
+ done
rm -rf conftest.dir
- mkdir conftest.dir
- echo GrepMe > conftest.dir/file
- AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
- rm -rf conftest.dir
- if test -s conftest.tar; then
- AM_RUN_LOG([$am__untar <conftest.tar])
- grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
- fi
-done
-rm -rf conftest.dir
-AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
-AC_MSG_RESULT([$am_cv_prog_tar_$1])])
+ AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
+ AC_MSG_RESULT([$am_cv_prog_tar_$1])])
+
AC_SUBST([am__tar])
AC_SUBST([am__untar])
]) # _AM_PROG_TAR
diff --git a/arm/arm_init.c b/arm/arm_init.c
index 15f5162..952b802 100644
--- a/arm/arm_init.c
+++ b/arm/arm_init.c
@@ -1,9 +1,9 @@
/* arm_init.c - NEON optimised filter functions
*
- * Copyright (c) 2013 Glenn Randers-Pehrson
+ * Copyright (c) 2014 Glenn Randers-Pehrson
* Written by Mans Rullgard, 2011.
- * Last changed in libpng 1.5.17 [July 18, 2013]
+ * Last changed in libpng 1.6.10 [March 6, 2014]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
@@ -19,132 +19,33 @@
#ifdef PNG_READ_SUPPORTED
#if PNG_ARM_NEON_OPT > 0
#ifdef PNG_ARM_NEON_CHECK_SUPPORTED /* Do run-time checks */
-#include <signal.h> /* for sig_atomic_t */
-
-#ifdef __ANDROID__
-/* Linux provides access to information about CPU capabilites via
- * /proc/self/auxv, however Android blocks this while still claiming to be
- * Linux. The Andoid NDK, however, provides appropriate support.
+/* WARNING: it is strongly recommended that you do not build libpng with
+ * run-time checks for CPU features if at all possible. In the case of the ARM
+ * NEON instructions there is no processor-specific way of detecting the
+ * presense of the required support, therefore run-time detectioon is extremely
+ * OS specific.
*
- * Documentation: http://www.kandroid.org/ndk/docs/CPU-ARM-NEON.html
+ * You may set the macro PNG_ARM_NEON_FILE to the file name of file containing
+ * a fragment of C source code which defines the png_have_neon function. There
+ * are a number of implementations in contrib/arm-neon, but the only one that
+ * has partial support is contrib/arm-neon/linux.c - a generic Linux
+ * implementation which reads /proc/cpufino.
*/
-#include <cpu-features.h>
+#ifndef PNG_ARM_NEON_FILE
+# ifdef __linux__
+# define PNG_ARM_NEON_FILE "contrib/arm-neon/linux.c"
+# endif
+#endif
-static int
-png_have_neon(png_structp png_ptr)
-{
- /* This is a whole lot easier than the mess below, however it is probably
- * implemented as below, therefore it is better to cache the result (these
- * function calls may be slow!)
- */
- PNG_UNUSED(png_ptr)
- return android_getCpuFamily() == ANDROID_CPU_FAMILY_ARM &&
- (android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_NEON) != 0;
-}
-#elif defined(__linux__)
-/* The generic __linux__ implementation requires reading /proc/self/auxv and
- * looking at each element for one that records NEON capabilities.
- */
-#include <unistd.h> /* for POSIX 1003.1 */
-#include <errno.h> /* for EINTR */
+#ifdef PNG_ARM_NEON_FILE
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <elf.h>
-#include <asm/hwcap.h>
+#include <signal.h> /* for sig_atomic_t */
+static int png_have_neon(png_structp png_ptr);
+#include PNG_ARM_NEON_FILE
-/* A read call may be interrupted, in which case it returns -1 and sets errno to
- * EINTR if nothing was done, otherwise (if something was done) a partial read
- * may result.
- */
-static size_t
-safe_read(png_structp png_ptr, int fd, void *buffer_in, size_t nbytes)
-{
- size_t ntotal = 0;
- char *buffer = png_voidcast(char*, buffer_in);
-
- while (nbytes > 0)
- {
- unsigned int nread;
- int iread;
-
- /* Passing nread > INT_MAX to read is implementation defined in POSIX
- * 1003.1, therefore despite the unsigned argument portable code must
- * limit the value to INT_MAX!
- */
- if (nbytes > INT_MAX)
- nread = INT_MAX;
-
- else
- nread = (unsigned int)/*SAFE*/nbytes;
-
- iread = read(fd, buffer, nread);
-
- if (iread == -1)
- {
- /* This is the devil in the details, a read can terminate early with 0
- * bytes read because of EINTR, yet it still returns -1 otherwise end
- * of file cannot be distinguished.
- */
- if (errno != EINTR)
- {
- png_warning(png_ptr, "/proc read failed");
- return 0; /* I.e. a permanent failure */
- }
- }
-
- else if (iread < 0)
- {
- /* Not a valid 'read' result: */
- png_warning(png_ptr, "OS /proc read bug");
- return 0;
- }
-
- else if (iread > 0)
- {
- /* Continue reading until a permanent failure, or EOF */
- buffer += iread;
- nbytes -= (unsigned int)/*SAFE*/iread;
- ntotal += (unsigned int)/*SAFE*/iread;
- }
-
- else
- return ntotal;
- }
-
- return ntotal; /* nbytes == 0 */
-}
-
-static int
-png_have_neon(png_structp png_ptr)
-{
- int fd = open("/proc/self/auxv", O_RDONLY);
- Elf32_auxv_t aux;
-
- /* Failsafe: failure to open means no NEON */
- if (fd == -1)
- {
- png_warning(png_ptr, "/proc/self/auxv open failed");
- return 0;
- }
-
- while (safe_read(png_ptr, fd, &aux, sizeof aux) == sizeof aux)
- {
- if (aux.a_type == AT_HWCAP && (aux.a_un.a_val & HWCAP_NEON) != 0)
- {
- close(fd);
- return 1;
- }
- }
-
- close(fd);
- return 0;
-}
-#else
- /* We don't know how to do a run-time check on this system */
-# error "no support for run-time ARM NEON checks"
-#endif /* OS checks */
+#else /* PNG_ARM_NEON_FILE */
+# error "PNG_ARM_NEON_FILE undefined: no support for run-time ARM NEON checks"
+#endif /* PNG_ARM_NEON_FILE */
#endif /* PNG_ARM_NEON_CHECK_SUPPORTED */
#ifndef PNG_ALIGNED_MEMORY_SUPPORTED
@@ -154,6 +55,16 @@
void
png_init_filter_functions_neon(png_structp pp, unsigned int bpp)
{
+ /* The switch statement is compiled in for ARM_NEON_API, the call to
+ * png_have_neon is compiled in for ARM_NEON_CHECK. If both are defined
+ * the check is only performed if the API has not set the NEON option on
+ * or off explicitly. In this case the check controls what happens.
+ *
+ * If the CHECK is not compiled in and the option is UNSET the behavior prior
+ * to 1.6.7 was to use the NEON code - this was a bug caused by having the
+ * wrong order of the 'ON' and 'default' cases. UNSET now defaults to OFF,
+ * as documented in png.h
+ */
#ifdef PNG_ARM_NEON_API_SUPPORTED
switch ((pp->options >> PNG_ARM_NEON) & 3)
{
@@ -178,13 +89,14 @@
break;
#endif
#endif /* PNG_ARM_NEON_CHECK_SUPPORTED */
+
#ifdef PNG_ARM_NEON_API_SUPPORTED
+ default: /* OFF or INVALID */
+ return;
+
case PNG_OPTION_ON:
/* Option turned on */
break;
-
- default: /* OFF or INVALID */
- return;
}
#endif
diff --git a/arm/filter_neon.S b/arm/filter_neon.S
index b8aef10..40d9777 100644
--- a/arm/filter_neon.S
+++ b/arm/filter_neon.S
@@ -3,7 +3,7 @@
*
* Copyright (c) 2013 Glenn Randers-Pehrson
* Written by Mans Rullgard, 2011.
- * Last changed in libpng 1.5.17 [July 18, 2013]
+ * Last changed in libpng 1.6.8 [December 19, 2013]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
@@ -11,7 +11,8 @@
*/
/* This is required to get the symbol renames, which are #defines, and also
- * includes the definition (or not) of PNG_ARM_NEON_OPT.
+ * includes the definition (or not) of PNG_ARM_NEON_OPT and
+ * PNG_ARM_NEON_IMPLEMENTATION.
*/
#define PNG_VERSION_INFO_ONLY
#include "../pngpriv.h"
@@ -20,6 +21,13 @@
.section .note.GNU-stack,"",%progbits /* mark stack as non-executable */
#endif
+/* Assembler NEON support - only works for 32-bit ARM (i.e. it does not work for
+ * ARM64). The code in arm/filter_neon_intrinsics.c supports ARM64, however it
+ * only works if -mfpu=neon is specified on the GCC command line. See pngpriv.h
+ * for the logic which sets PNG_USE_ARM_NEON_ASM:
+ */
+#if PNG_ARM_NEON_IMPLEMENTATION == 2 /* hand-coded assembler */
+
#ifdef PNG_READ_SUPPORTED
#if PNG_ARM_NEON_OPT > 0
@@ -235,3 +243,4 @@
endfunc
#endif /* PNG_ARM_NEON_OPT > 0 */
#endif /* PNG_READ_SUPPORTED */
+#endif /* PNG_ARM_NEON_IMPLEMENTATION == 2 (assembler) */
diff --git a/arm/filter_neon_intrinsics.c b/arm/filter_neon_intrinsics.c
new file mode 100644
index 0000000..e7a09f4
--- /dev/null
+++ b/arm/filter_neon_intrinsics.c
@@ -0,0 +1,372 @@
+
+/* filter_neon_intrinsics.c - NEON optimised filter functions
+ *
+ * Copyright (c) 2013 Glenn Randers-Pehrson
+ * Written by James Yu <james.yu at linaro.org>, October 2013.
+ * Based on filter_neon.S, written by Mans Rullgard, 2011.
+ *
+ * Last changed in libpng 1.6.8 [December 19, 2013]
+ *
+ * This code is released under the libpng license.
+ * For conditions of distribution and use, see the disclaimer
+ * and license in png.h
+ */
+
+#include "../pngpriv.h"
+
+/* This code requires -mfpu=neon on the command line: */
+#if PNG_ARM_NEON_IMPLEMENTATION == 1 /* intrinsics code from pngpriv.h */
+
+#include <arm_neon.h>
+
+/* libpng row pointers are not necessarily aligned to any particular boundary,
+ * however this code will only work with appropriate alignment. arm/arm_init.c
+ * checks for this (and will not compile unless it is done). This code uses
+ * variants of png_aligncast to avoid compiler warnings.
+ */
+#define png_ptr(type,pointer) png_aligncast(type *,pointer)
+#define png_ptrc(type,pointer) png_aligncastconst(const type *,pointer)
+
+/* The following relies on a variable 'temp_pointer' being declared with type
+ * 'type'. This is written this way just to hide the GCC strict aliasing
+ * warning; note that the code is safe because there never is an alias between
+ * the input and output pointers.
+ */
+#define png_ldr(type,pointer)\
+ (temp_pointer = png_ptr(type,pointer), *temp_pointer)
+
+#ifdef PNG_READ_SUPPORTED
+#if PNG_ARM_NEON_OPT > 0
+
+void
+png_read_filter_row_up_neon(png_row_infop row_info, png_bytep row,
+ png_const_bytep prev_row)
+{
+ png_bytep rp = row;
+ png_bytep rp_stop = row + row_info->rowbytes;
+ png_const_bytep pp = prev_row;
+
+ for (; rp < rp_stop; rp += 16, pp += 16)
+ {
+ uint8x16_t qrp, qpp;
+
+ qrp = vld1q_u8(rp);
+ qpp = vld1q_u8(pp);
+ qrp = vaddq_u8(qrp, qpp);
+ vst1q_u8(rp, qrp);
+ }
+}
+
+void
+png_read_filter_row_sub3_neon(png_row_infop row_info, png_bytep row,
+ png_const_bytep prev_row)
+{
+ png_bytep rp = row;
+ png_bytep rp_stop = row + row_info->rowbytes;
+
+ uint8x16_t vtmp = vld1q_u8(rp);
+ uint8x8x2_t *vrpt = png_ptr(uint8x8x2_t, &vtmp);
+ uint8x8x2_t vrp = *vrpt;
+
+ uint8x8x4_t vdest;
+ vdest.val[3] = vdup_n_u8(0);
+
+ for (; rp < rp_stop;)
+ {
+ uint8x8_t vtmp1, vtmp2;
+ uint32x2_t *temp_pointer;
+
+ vtmp1 = vext_u8(vrp.val[0], vrp.val[1], 3);
+ vdest.val[0] = vadd_u8(vdest.val[3], vrp.val[0]);
+ vtmp2 = vext_u8(vrp.val[0], vrp.val[1], 6);
+ vdest.val[1] = vadd_u8(vdest.val[0], vtmp1);
+
+ vtmp1 = vext_u8(vrp.val[1], vrp.val[1], 1);
+ vdest.val[2] = vadd_u8(vdest.val[1], vtmp2);
+ vdest.val[3] = vadd_u8(vdest.val[2], vtmp1);
+
+ vtmp = vld1q_u8(rp + 12);
+ vrpt = png_ptr(uint8x8x2_t, &vtmp);
+ vrp = *vrpt;
+
+ vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[0]), 0);
+ rp += 3;
+ vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[1]), 0);
+ rp += 3;
+ vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[2]), 0);
+ rp += 3;
+ vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[3]), 0);
+ rp += 3;
+ }
+
+ PNG_UNUSED(prev_row)
+}
+
+void
+png_read_filter_row_sub4_neon(png_row_infop row_info, png_bytep row,
+ png_const_bytep prev_row)
+{
+ png_bytep rp = row;
+ png_bytep rp_stop = row + row_info->rowbytes;
+
+ uint8x8x4_t vdest;
+ vdest.val[3] = vdup_n_u8(0);
+
+ for (; rp < rp_stop; rp += 16)
+ {
+ uint32x2x4_t vtmp = vld4_u32(png_ptr(uint32_t,rp));
+ uint8x8x4_t *vrpt = png_ptr(uint8x8x4_t,&vtmp);
+ uint8x8x4_t vrp = *vrpt;
+ uint32x2x4_t *temp_pointer;
+
+ vdest.val[0] = vadd_u8(vdest.val[3], vrp.val[0]);
+ vdest.val[1] = vadd_u8(vdest.val[0], vrp.val[1]);
+ vdest.val[2] = vadd_u8(vdest.val[1], vrp.val[2]);
+ vdest.val[3] = vadd_u8(vdest.val[2], vrp.val[3]);
+ vst4_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2x4_t,&vdest), 0);
+ }
+
+ PNG_UNUSED(prev_row)
+}
+
+void
+png_read_filter_row_avg3_neon(png_row_infop row_info, png_bytep row,
+ png_const_bytep prev_row)
+{
+ png_bytep rp = row;
+ png_const_bytep pp = prev_row;
+ png_bytep rp_stop = row + row_info->rowbytes;
+
+ uint8x16_t vtmp;
+ uint8x8x2_t *vrpt;
+ uint8x8x2_t vrp;
+ uint8x8x4_t vdest;
+ vdest.val[3] = vdup_n_u8(0);
+
+ vtmp = vld1q_u8(rp);
+ vrpt = png_ptr(uint8x8x2_t,&vtmp);
+ vrp = *vrpt;
+
+ for (; rp < rp_stop; pp += 12)
+ {
+ uint8x8_t vtmp1, vtmp2, vtmp3;
+
+ uint8x8x2_t *vppt;
+ uint8x8x2_t vpp;
+
+ uint32x2_t *temp_pointer;
+
+ vtmp = vld1q_u8(pp);
+ vppt = png_ptr(uint8x8x2_t,&vtmp);
+ vpp = *vppt;
+
+ vtmp1 = vext_u8(vrp.val[0], vrp.val[1], 3);
+ vdest.val[0] = vhadd_u8(vdest.val[3], vpp.val[0]);
+ vdest.val[0] = vadd_u8(vdest.val[0], vrp.val[0]);
+
+ vtmp2 = vext_u8(vpp.val[0], vpp.val[1], 3);
+ vtmp3 = vext_u8(vrp.val[0], vrp.val[1], 6);
+ vdest.val[1] = vhadd_u8(vdest.val[0], vtmp2);
+ vdest.val[1] = vadd_u8(vdest.val[1], vtmp1);
+
+ vtmp2 = vext_u8(vpp.val[0], vpp.val[1], 6);
+ vtmp1 = vext_u8(vrp.val[1], vrp.val[1], 1);
+
+ vtmp = vld1q_u8(rp + 12);
+ vrpt = png_ptr(uint8x8x2_t,&vtmp);
+ vrp = *vrpt;
+
+ vdest.val[2] = vhadd_u8(vdest.val[1], vtmp2);
+ vdest.val[2] = vadd_u8(vdest.val[2], vtmp3);
+
+ vtmp2 = vext_u8(vpp.val[1], vpp.val[1], 1);
+
+ vdest.val[3] = vhadd_u8(vdest.val[2], vtmp2);
+ vdest.val[3] = vadd_u8(vdest.val[3], vtmp1);
+
+ vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[0]), 0);
+ rp += 3;
+ vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[1]), 0);
+ rp += 3;
+ vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[2]), 0);
+ rp += 3;
+ vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[3]), 0);
+ rp += 3;
+ }
+}
+
+void
+png_read_filter_row_avg4_neon(png_row_infop row_info, png_bytep row,
+ png_const_bytep prev_row)
+{
+ png_bytep rp = row;
+ png_bytep rp_stop = row + row_info->rowbytes;
+ png_const_bytep pp = prev_row;
+
+ uint8x8x4_t vdest;
+ vdest.val[3] = vdup_n_u8(0);
+
+ for (; rp < rp_stop; rp += 16, pp += 16)
+ {
+ uint32x2x4_t vtmp;
+ uint8x8x4_t *vrpt, *vppt;
+ uint8x8x4_t vrp, vpp;
+ uint32x2x4_t *temp_pointer;
+
+ vtmp = vld4_u32(png_ptr(uint32_t,rp));
+ vrpt = png_ptr(uint8x8x4_t,&vtmp);
+ vrp = *vrpt;
+ vtmp = vld4_u32(png_ptrc(uint32_t,pp));
+ vppt = png_ptr(uint8x8x4_t,&vtmp);
+ vpp = *vppt;
+
+ vdest.val[0] = vhadd_u8(vdest.val[3], vpp.val[0]);
+ vdest.val[0] = vadd_u8(vdest.val[0], vrp.val[0]);
+ vdest.val[1] = vhadd_u8(vdest.val[0], vpp.val[1]);
+ vdest.val[1] = vadd_u8(vdest.val[1], vrp.val[1]);
+ vdest.val[2] = vhadd_u8(vdest.val[1], vpp.val[2]);
+ vdest.val[2] = vadd_u8(vdest.val[2], vrp.val[2]);
+ vdest.val[3] = vhadd_u8(vdest.val[2], vpp.val[3]);
+ vdest.val[3] = vadd_u8(vdest.val[3], vrp.val[3]);
+
+ vst4_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2x4_t,&vdest), 0);
+ }
+}
+
+static uint8x8_t
+paeth(uint8x8_t a, uint8x8_t b, uint8x8_t c)
+{
+ uint8x8_t d, e;
+ uint16x8_t p1, pa, pb, pc;
+
+ p1 = vaddl_u8(a, b); /* a + b */
+ pc = vaddl_u8(c, c); /* c * 2 */
+ pa = vabdl_u8(b, c); /* pa */
+ pb = vabdl_u8(a, c); /* pb */
+ pc = vabdq_u16(p1, pc); /* pc */
+
+ p1 = vcleq_u16(pa, pb); /* pa <= pb */
+ pa = vcleq_u16(pa, pc); /* pa <= pc */
+ pb = vcleq_u16(pb, pc); /* pb <= pc */
+
+ p1 = vandq_u16(p1, pa); /* pa <= pb && pa <= pc */
+
+ d = vmovn_u16(pb);
+ e = vmovn_u16(p1);
+
+ d = vbsl_u8(d, b, c);
+ e = vbsl_u8(e, a, d);
+
+ return e;
+}
+
+void
+png_read_filter_row_paeth3_neon(png_row_infop row_info, png_bytep row,
+ png_const_bytep prev_row)
+{
+ png_bytep rp = row;
+ png_const_bytep pp = prev_row;
+ png_bytep rp_stop = row + row_info->rowbytes;
+
+ uint8x16_t vtmp;
+ uint8x8x2_t *vrpt;
+ uint8x8x2_t vrp;
+ uint8x8_t vlast = vdup_n_u8(0);
+ uint8x8x4_t vdest;
+ vdest.val[3] = vdup_n_u8(0);
+
+ vtmp = vld1q_u8(rp);
+ vrpt = png_ptr(uint8x8x2_t,&vtmp);
+ vrp = *vrpt;
+
+ for (; rp < rp_stop; pp += 12)
+ {
+ uint8x8x2_t *vppt;
+ uint8x8x2_t vpp;
+ uint8x8_t vtmp1, vtmp2, vtmp3;
+ uint32x2_t *temp_pointer;
+
+ vtmp = vld1q_u8(pp);
+ vppt = png_ptr(uint8x8x2_t,&vtmp);
+ vpp = *vppt;
+
+ vdest.val[0] = paeth(vdest.val[3], vpp.val[0], vlast);
+ vdest.val[0] = vadd_u8(vdest.val[0], vrp.val[0]);
+
+ vtmp1 = vext_u8(vrp.val[0], vrp.val[1], 3);
+ vtmp2 = vext_u8(vpp.val[0], vpp.val[1], 3);
+ vdest.val[1] = paeth(vdest.val[0], vtmp2, vpp.val[0]);
+ vdest.val[1] = vadd_u8(vdest.val[1], vtmp1);
+
+ vtmp1 = vext_u8(vrp.val[0], vrp.val[1], 6);
+ vtmp3 = vext_u8(vpp.val[0], vpp.val[1], 6);
+ vdest.val[2] = paeth(vdest.val[1], vtmp3, vtmp2);
+ vdest.val[2] = vadd_u8(vdest.val[2], vtmp1);
+
+ vtmp1 = vext_u8(vrp.val[1], vrp.val[1], 1);
+ vtmp2 = vext_u8(vpp.val[1], vpp.val[1], 1);
+
+ vtmp = vld1q_u8(rp + 12);
+ vrpt = png_ptr(uint8x8x2_t,&vtmp);
+ vrp = *vrpt;
+
+ vdest.val[3] = paeth(vdest.val[2], vtmp2, vtmp3);
+ vdest.val[3] = vadd_u8(vdest.val[3], vtmp1);
+
+ vlast = vtmp2;
+
+ vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[0]), 0);
+ rp += 3;
+ vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[1]), 0);
+ rp += 3;
+ vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[2]), 0);
+ rp += 3;
+ vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[3]), 0);
+ rp += 3;
+ }
+}
+
+void
+png_read_filter_row_paeth4_neon(png_row_infop row_info, png_bytep row,
+ png_const_bytep prev_row)
+{
+ png_bytep rp = row;
+ png_bytep rp_stop = row + row_info->rowbytes;
+ png_const_bytep pp = prev_row;
+
+ uint8x8_t vlast = vdup_n_u8(0);
+ uint8x8x4_t vdest;
+ vdest.val[3] = vdup_n_u8(0);
+
+ for (; rp < rp_stop; rp += 16, pp += 16)
+ {
+ uint32x2x4_t vtmp;
+ uint8x8x4_t *vrpt, *vppt;
+ uint8x8x4_t vrp, vpp;
+ uint32x2x4_t *temp_pointer;
+
+ vtmp = vld4_u32(png_ptr(uint32_t,rp));
+ vrpt = png_ptr(uint8x8x4_t,&vtmp);
+ vrp = *vrpt;
+ vtmp = vld4_u32(png_ptrc(uint32_t,pp));
+ vppt = png_ptr(uint8x8x4_t,&vtmp);
+ vpp = *vppt;
+
+ vdest.val[0] = paeth(vdest.val[3], vpp.val[0], vlast);
+ vdest.val[0] = vadd_u8(vdest.val[0], vrp.val[0]);
+ vdest.val[1] = paeth(vdest.val[0], vpp.val[1], vpp.val[0]);
+ vdest.val[1] = vadd_u8(vdest.val[1], vrp.val[1]);
+ vdest.val[2] = paeth(vdest.val[1], vpp.val[2], vpp.val[1]);
+ vdest.val[2] = vadd_u8(vdest.val[2], vrp.val[2]);
+ vdest.val[3] = paeth(vdest.val[2], vpp.val[3], vpp.val[2]);
+ vdest.val[3] = vadd_u8(vdest.val[3], vrp.val[3]);
+
+ vlast = vpp.val[3];
+
+ vst4_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2x4_t,&vdest), 0);
+ }
+}
+
+#endif /* PNG_ARM_NEON_OPT > 0 */
+#endif /* PNG_READ_SUPPORTED */
+#endif /* PNG_ARM_NEON_IMPLEMENTATION == 1 (intrinsics) */
diff --git a/autogen.sh b/autogen.sh
index decf0f5..9af34bd 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -9,15 +9,15 @@
#
# For regular ("tarball") distributions all the files should exist. We do not
# want them to be updated *under any circumstances*. It should never be
-# necessary to rune autogen.sh because ./configure --enable-maintainer-mode says
-# what to do if Makeile.am or configure.ac are changed.
+# necessary to run autogen.sh because ./configure --enable-maintainer-mode says
+# what to do if Makefile.am or configure.ac are changed.
#
# It is *probably* OK to update the files on a GIT checkout, because they have
# come from the local tools, but leave that to the user who is assumed to know
# whether it is ok or required.
#
# This script is intended to work without arguments, there are, however, hidden
-# arguments for (a) use while testing the script and (b) to fix up systems that
+# arguments (a) for use while testing the script and (b) to fix up systems that
# have been broken. If (b) is required the script prompts for the correct
# options. For this reason the options are *NOT* documented in the help; this
# is deliberate; UTSL.
@@ -76,6 +76,10 @@
libpng_autotools_files="Makefile.in aclocal.m4 config.guess config.h.in\
config.sub configure depcomp install-sh ltmain.sh missing test-driver"
#
+# Files generated by versions of configue >2.68 or automake >1.13 (i.e. later
+# versions than those required by configure.ac):
+libpng_autotools_extra="compile"
+#
# These are separate because 'maintainer-clean' does not remove them.
libpng_libtool_files="scripts/libtool.m4 scripts/ltoptions.m4\
scripts/ltsugar.m4 scripts/ltversion.m4 scripts/lt~obsolete.m4"
@@ -94,6 +98,7 @@
# of Makefile. These functions do the two bits of cleaning.
clean_autotools(){
rm -rf $libpng_autotools_files $libpng_libtool_files $libpng_autotools_dirs
+ rm -rf $libpng_autotools_extra
}
clean_configure(){
@@ -198,7 +203,7 @@
echo " You can run autoreconf yourself if you don't like maintainer"
echo " mode and you can also just run autoreconf -f -i to initialize"
echo " everything in the first place; this script is only for"
- echo " compatiblity with prior releases."
+ echo " compatibility with prior releases."
exit 1
else
exec >&2
diff --git a/compile b/compile
new file mode 100644
index 0000000..531136b
--- /dev/null
+++ b/compile
@@ -0,0 +1,347 @@
+#! /bin/sh
+# Wrapper for compilers which do not understand '-c -o'.
+
+scriptversion=2012-10-14.11; # UTC
+
+# Copyright (C) 1999-2013 Free Software Foundation, Inc.
+# Written by Tom Tromey <tromey@cygnus.com>.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+nl='
+'
+
+# We need space, tab and new line, in precisely that order. Quoting is
+# there to prevent tools from complaining about whitespace usage.
+IFS=" "" $nl"
+
+file_conv=
+
+# func_file_conv build_file lazy
+# Convert a $build file to $host form and store it in $file
+# Currently only supports Windows hosts. If the determined conversion
+# type is listed in (the comma separated) LAZY, no conversion will
+# take place.
+func_file_conv ()
+{
+ file=$1
+ case $file in
+ / | /[!/]*) # absolute file, and not a UNC file
+ if test -z "$file_conv"; then
+ # lazily determine how to convert abs files
+ case `uname -s` in
+ MINGW*)
+ file_conv=mingw
+ ;;
+ CYGWIN*)
+ file_conv=cygwin
+ ;;
+ *)
+ file_conv=wine
+ ;;
+ esac
+ fi
+ case $file_conv/,$2, in
+ *,$file_conv,*)
+ ;;
+ mingw/*)
+ file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
+ ;;
+ cygwin/*)
+ file=`cygpath -m "$file" || echo "$file"`
+ ;;
+ wine/*)
+ file=`winepath -w "$file" || echo "$file"`
+ ;;
+ esac
+ ;;
+ esac
+}
+
+# func_cl_dashL linkdir
+# Make cl look for libraries in LINKDIR
+func_cl_dashL ()
+{
+ func_file_conv "$1"
+ if test -z "$lib_path"; then
+ lib_path=$file
+ else
+ lib_path="$lib_path;$file"
+ fi
+ linker_opts="$linker_opts -LIBPATH:$file"
+}
+
+# func_cl_dashl library
+# Do a library search-path lookup for cl
+func_cl_dashl ()
+{
+ lib=$1
+ found=no
+ save_IFS=$IFS
+ IFS=';'
+ for dir in $lib_path $LIB
+ do
+ IFS=$save_IFS
+ if $shared && test -f "$dir/$lib.dll.lib"; then
+ found=yes
+ lib=$dir/$lib.dll.lib
+ break
+ fi
+ if test -f "$dir/$lib.lib"; then
+ found=yes
+ lib=$dir/$lib.lib
+ break
+ fi
+ if test -f "$dir/lib$lib.a"; then
+ found=yes
+ lib=$dir/lib$lib.a
+ break
+ fi
+ done
+ IFS=$save_IFS
+
+ if test "$found" != yes; then
+ lib=$lib.lib
+ fi
+}
+
+# func_cl_wrapper cl arg...
+# Adjust compile command to suit cl
+func_cl_wrapper ()
+{
+ # Assume a capable shell
+ lib_path=
+ shared=:
+ linker_opts=
+ for arg
+ do
+ if test -n "$eat"; then
+ eat=
+ else
+ case $1 in
+ -o)
+ # configure might choose to run compile as 'compile cc -o foo foo.c'.
+ eat=1
+ case $2 in
+ *.o | *.[oO][bB][jJ])
+ func_file_conv "$2"
+ set x "$@" -Fo"$file"
+ shift
+ ;;
+ *)
+ func_file_conv "$2"
+ set x "$@" -Fe"$file"
+ shift
+ ;;
+ esac
+ ;;
+ -I)
+ eat=1
+ func_file_conv "$2" mingw
+ set x "$@" -I"$file"
+ shift
+ ;;
+ -I*)
+ func_file_conv "${1#-I}" mingw
+ set x "$@" -I"$file"
+ shift
+ ;;
+ -l)
+ eat=1
+ func_cl_dashl "$2"
+ set x "$@" "$lib"
+ shift
+ ;;
+ -l*)
+ func_cl_dashl "${1#-l}"
+ set x "$@" "$lib"
+ shift
+ ;;
+ -L)
+ eat=1
+ func_cl_dashL "$2"
+ ;;
+ -L*)
+ func_cl_dashL "${1#-L}"
+ ;;
+ -static)
+ shared=false
+ ;;
+ -Wl,*)
+ arg=${1#-Wl,}
+ save_ifs="$IFS"; IFS=','
+ for flag in $arg; do
+ IFS="$save_ifs"
+ linker_opts="$linker_opts $flag"
+ done
+ IFS="$save_ifs"
+ ;;
+ -Xlinker)
+ eat=1
+ linker_opts="$linker_opts $2"
+ ;;
+ -*)
+ set x "$@" "$1"
+ shift
+ ;;
+ *.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
+ func_file_conv "$1"
+ set x "$@" -Tp"$file"
+ shift
+ ;;
+ *.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
+ func_file_conv "$1" mingw
+ set x "$@" "$file"
+ shift
+ ;;
+ *)
+ set x "$@" "$1"
+ shift
+ ;;
+ esac
+ fi
+ shift
+ done
+ if test -n "$linker_opts"; then
+ linker_opts="-link$linker_opts"
+ fi
+ exec "$@" $linker_opts
+ exit 1
+}
+
+eat=
+
+case $1 in
+ '')
+ echo "$0: No command. Try '$0 --help' for more information." 1>&2
+ exit 1;
+ ;;
+ -h | --h*)
+ cat <<\EOF
+Usage: compile [--help] [--version] PROGRAM [ARGS]
+
+Wrapper for compilers which do not understand '-c -o'.
+Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
+arguments, and rename the output as expected.
+
+If you are trying to build a whole package this is not the
+right script to run: please start by reading the file 'INSTALL'.
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+ exit $?
+ ;;
+ -v | --v*)
+ echo "compile $scriptversion"
+ exit $?
+ ;;
+ cl | *[/\\]cl | cl.exe | *[/\\]cl.exe )
+ func_cl_wrapper "$@" # Doesn't return...
+ ;;
+esac
+
+ofile=
+cfile=
+
+for arg
+do
+ if test -n "$eat"; then
+ eat=
+ else
+ case $1 in
+ -o)
+ # configure might choose to run compile as 'compile cc -o foo foo.c'.
+ # So we strip '-o arg' only if arg is an object.
+ eat=1
+ case $2 in
+ *.o | *.obj)
+ ofile=$2
+ ;;
+ *)
+ set x "$@" -o "$2"
+ shift
+ ;;
+ esac
+ ;;
+ *.c)
+ cfile=$1
+ set x "$@" "$1"
+ shift
+ ;;
+ *)
+ set x "$@" "$1"
+ shift
+ ;;
+ esac
+ fi
+ shift
+done
+
+if test -z "$ofile" || test -z "$cfile"; then
+ # If no '-o' option was seen then we might have been invoked from a
+ # pattern rule where we don't need one. That is ok -- this is a
+ # normal compilation that the losing compiler can handle. If no
+ # '.c' file was seen then we are probably linking. That is also
+ # ok.
+ exec "$@"
+fi
+
+# Name of file we expect compiler to create.
+cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
+
+# Create the lock directory.
+# Note: use '[/\\:.-]' here to ensure that we don't use the same name
+# that we are using for the .o file. Also, base the name on the expected
+# object file name, since that is what matters with a parallel build.
+lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
+while true; do
+ if mkdir "$lockdir" >/dev/null 2>&1; then
+ break
+ fi
+ sleep 1
+done
+# FIXME: race condition here if user kills between mkdir and trap.
+trap "rmdir '$lockdir'; exit 1" 1 2 15
+
+# Run the compile.
+"$@"
+ret=$?
+
+if test -f "$cofile"; then
+ test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
+elif test -f "${cofile}bj"; then
+ test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
+fi
+
+rmdir "$lockdir"
+exit $ret
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/config.guess b/config.guess
index 872b96a..9afd676 100755
--- a/config.guess
+++ b/config.guess
@@ -1,14 +1,12 @@
#! /bin/sh
# Attempt to guess a canonical system name.
-# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-# 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
-# 2011, 2012 Free Software Foundation, Inc.
+# Copyright 1992-2013 Free Software Foundation, Inc.
-timestamp='2012-09-25'
+timestamp='2013-11-29'
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
+# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
@@ -22,19 +20,17 @@
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-
-# Originally written by Per Bothner. Please send patches (context
-# diff format) to <config-patches@gnu.org> and include a ChangeLog
-# entry.
+# the same distribution terms that you use for the rest of that
+# program. This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
#
-# This script attempts to guess a canonical system name similar to
-# config.sub. If it succeeds, it prints the system name on stdout, and
-# exits with 0. Otherwise, it exits with 1.
+# Originally written by Per Bothner.
#
# You can get the latest version of this script from:
# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
+#
+# Please send patches with a ChangeLog entry to config-patches@gnu.org.
+
me=`echo "$0" | sed -e 's,.*/,,'`
@@ -54,9 +50,7 @@
GNU config.guess ($timestamp)
Originally written by Per Bothner.
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
-Free Software Foundation, Inc.
+Copyright 1992-2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -138,6 +132,27 @@
UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown
UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
+case "${UNAME_SYSTEM}" in
+Linux|GNU|GNU/*)
+ # If the system lacks a compiler, then just pick glibc.
+ # We could probably try harder.
+ LIBC=gnu
+
+ eval $set_cc_for_build
+ cat <<-EOF > $dummy.c
+ #include <features.h>
+ #if defined(__UCLIBC__)
+ LIBC=uclibc
+ #elif defined(__dietlibc__)
+ LIBC=dietlibc
+ #else
+ LIBC=gnu
+ #endif
+ EOF
+ eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'`
+ ;;
+esac
+
# Note: order is significant - the case branches are not exclusive.
case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
@@ -859,21 +874,21 @@
exit ;;
*:GNU:*:*)
# the GNU system
- echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
+ echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-${LIBC}`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
exit ;;
*:GNU/*:*:*)
# other systems with GNU libc and userland
- echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu
+ echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-${LIBC}
exit ;;
i*86:Minix:*:*)
echo ${UNAME_MACHINE}-pc-minix
exit ;;
aarch64:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
aarch64_be:Linux:*:*)
UNAME_MACHINE=aarch64_be
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
alpha:Linux:*:*)
case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
@@ -886,59 +901,54 @@
EV68*) UNAME_MACHINE=alphaev68 ;;
esac
objdump --private-headers /bin/sh | grep -q ld.so.1
- if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
- echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
+ if test "$?" = 0 ; then LIBC="gnulibc1" ; fi
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+ exit ;;
+ arc:Linux:*:* | arceb:Linux:*:*)
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
arm*:Linux:*:*)
eval $set_cc_for_build
if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
| grep -q __ARM_EABI__
then
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
else
if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
| grep -q __ARM_PCS_VFP
then
- echo ${UNAME_MACHINE}-unknown-linux-gnueabi
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabi
else
- echo ${UNAME_MACHINE}-unknown-linux-gnueabihf
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabihf
fi
fi
exit ;;
avr32*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
cris:Linux:*:*)
- echo ${UNAME_MACHINE}-axis-linux-gnu
+ echo ${UNAME_MACHINE}-axis-linux-${LIBC}
exit ;;
crisv32:Linux:*:*)
- echo ${UNAME_MACHINE}-axis-linux-gnu
+ echo ${UNAME_MACHINE}-axis-linux-${LIBC}
exit ;;
frv:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
hexagon:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
i*86:Linux:*:*)
- LIBC=gnu
- eval $set_cc_for_build
- sed 's/^ //' << EOF >$dummy.c
- #ifdef __dietlibc__
- LIBC=dietlibc
- #endif
-EOF
- eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'`
- echo "${UNAME_MACHINE}-pc-linux-${LIBC}"
+ echo ${UNAME_MACHINE}-pc-linux-${LIBC}
exit ;;
ia64:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
m32r*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
m68*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
mips:Linux:*:* | mips64:Linux:*:*)
eval $set_cc_for_build
@@ -957,54 +967,63 @@
#endif
EOF
eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'`
- test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
+ test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; }
;;
+ or1k:Linux:*:*)
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+ exit ;;
or32:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
padre:Linux:*:*)
- echo sparc-unknown-linux-gnu
+ echo sparc-unknown-linux-${LIBC}
exit ;;
parisc64:Linux:*:* | hppa64:Linux:*:*)
- echo hppa64-unknown-linux-gnu
+ echo hppa64-unknown-linux-${LIBC}
exit ;;
parisc:Linux:*:* | hppa:Linux:*:*)
# Look for CPU level
case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
- PA7*) echo hppa1.1-unknown-linux-gnu ;;
- PA8*) echo hppa2.0-unknown-linux-gnu ;;
- *) echo hppa-unknown-linux-gnu ;;
+ PA7*) echo hppa1.1-unknown-linux-${LIBC} ;;
+ PA8*) echo hppa2.0-unknown-linux-${LIBC} ;;
+ *) echo hppa-unknown-linux-${LIBC} ;;
esac
exit ;;
ppc64:Linux:*:*)
- echo powerpc64-unknown-linux-gnu
+ echo powerpc64-unknown-linux-${LIBC}
exit ;;
ppc:Linux:*:*)
- echo powerpc-unknown-linux-gnu
+ echo powerpc-unknown-linux-${LIBC}
+ exit ;;
+ ppc64le:Linux:*:*)
+ echo powerpc64le-unknown-linux-${LIBC}
+ exit ;;
+ ppcle:Linux:*:*)
+ echo powerpcle-unknown-linux-${LIBC}
exit ;;
s390:Linux:*:* | s390x:Linux:*:*)
- echo ${UNAME_MACHINE}-ibm-linux
+ echo ${UNAME_MACHINE}-ibm-linux-${LIBC}
exit ;;
sh64*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
sh*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
sparc:Linux:*:* | sparc64:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
tile*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
vax:Linux:*:*)
- echo ${UNAME_MACHINE}-dec-linux-gnu
+ echo ${UNAME_MACHINE}-dec-linux-${LIBC}
exit ;;
x86_64:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
xtensa*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
i*86:DYNIX/ptx:4*:*)
# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
@@ -1237,19 +1256,31 @@
exit ;;
*:Darwin:*:*)
UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
- case $UNAME_PROCESSOR in
- i386)
- eval $set_cc_for_build
- if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
- if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
- (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
- grep IS_64BIT_ARCH >/dev/null
- then
- UNAME_PROCESSOR="x86_64"
- fi
- fi ;;
- unknown) UNAME_PROCESSOR=powerpc ;;
- esac
+ eval $set_cc_for_build
+ if test "$UNAME_PROCESSOR" = unknown ; then
+ UNAME_PROCESSOR=powerpc
+ fi
+ if test `echo "$UNAME_RELEASE" | sed -e 's/\..*//'` -le 10 ; then
+ if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
+ if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
+ (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
+ grep IS_64BIT_ARCH >/dev/null
+ then
+ case $UNAME_PROCESSOR in
+ i386) UNAME_PROCESSOR=x86_64 ;;
+ powerpc) UNAME_PROCESSOR=powerpc64 ;;
+ esac
+ fi
+ fi
+ elif test "$UNAME_PROCESSOR" = i386 ; then
+ # Avoid executing cc on OS X 10.9, as it ships with a stub
+ # that puts up a graphical alert prompting to install
+ # developer tools. Any system running Mac OS X 10.7 or
+ # later (Darwin 11 and later) is required to have a 64-bit
+ # processor. This is not true of the ARM version of Darwin
+ # that Apple uses in portable devices.
+ UNAME_PROCESSOR=x86_64
+ fi
echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
exit ;;
*:procnto*:*:* | *:QNX:[0123456789]*:*)
diff --git a/config.sub b/config.sub
index 8df5511..61cb4bc 100755
--- a/config.sub
+++ b/config.sub
@@ -1,24 +1,18 @@
#! /bin/sh
# Configuration validation subroutine script.
-# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-# 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
-# 2011, 2012 Free Software Foundation, Inc.
+# Copyright 1992-2013 Free Software Foundation, Inc.
-timestamp='2012-12-06'
+timestamp='2013-10-01'
-# This file is (in principle) common to ALL GNU software.
-# The presence of a machine in this file suggests that SOME GNU software
-# can handle that machine. It does not imply ALL GNU software can.
-#
-# This file is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see <http://www.gnu.org/licenses/>.
@@ -26,11 +20,12 @@
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
+# the same distribution terms that you use for the rest of that
+# program. This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
-# Please send patches to <config-patches@gnu.org>. Submit a context
-# diff and a properly formatted GNU ChangeLog entry.
+# Please send patches with a ChangeLog entry to config-patches@gnu.org.
#
# Configuration subroutine to validate and canonicalize a configuration type.
# Supply the specified configuration type as an argument.
@@ -73,9 +68,7 @@
version="\
GNU config.sub ($timestamp)
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
-Free Software Foundation, Inc.
+Copyright 1992-2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -259,12 +252,12 @@
| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
| am33_2.0 \
- | arc \
+ | arc | arceb \
| arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \
| avr | avr32 \
| be32 | be64 \
| bfin \
- | c4x | clipper \
+ | c4x | c8051 | clipper \
| d10v | d30v | dlx | dsp16xx \
| epiphany \
| fido | fr30 | frv \
@@ -272,6 +265,7 @@
| hexagon \
| i370 | i860 | i960 | ia64 \
| ip2k | iq2000 \
+ | k1om \
| le32 | le64 \
| lm32 \
| m32c | m32r | m32rle | m68000 | m68k | m88k \
@@ -293,16 +287,17 @@
| mipsisa64r2 | mipsisa64r2el \
| mipsisa64sb1 | mipsisa64sb1el \
| mipsisa64sr71k | mipsisa64sr71kel \
+ | mipsr5900 | mipsr5900el \
| mipstx39 | mipstx39el \
| mn10200 | mn10300 \
| moxie \
| mt \
| msp430 \
| nds32 | nds32le | nds32be \
- | nios | nios2 \
+ | nios | nios2 | nios2eb | nios2el \
| ns16k | ns32k \
| open8 \
- | or32 \
+ | or1k | or32 \
| pdp10 | pdp11 | pj | pjl \
| powerpc | powerpc64 | powerpc64le | powerpcle \
| pyramid \
@@ -330,7 +325,7 @@
c6x)
basic_machine=tic6x-unknown
;;
- m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | picochip)
+ m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip)
basic_machine=$basic_machine-unknown
os=-none
;;
@@ -372,13 +367,13 @@
| aarch64-* | aarch64_be-* \
| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
- | alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
+ | alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \
| arm-* | armbe-* | armle-* | armeb-* | armv*-* \
| avr-* | avr32-* \
| be32-* | be64-* \
| bfin-* | bs2000-* \
| c[123]* | c30-* | [cjt]90-* | c4x-* \
- | clipper-* | craynv-* | cydra-* \
+ | c8051-* | clipper-* | craynv-* | cydra-* \
| d10v-* | d30v-* | dlx-* \
| elxsi-* \
| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
@@ -387,6 +382,7 @@
| hexagon-* \
| i*86-* | i860-* | i960-* | ia64-* \
| ip2k-* | iq2000-* \
+ | k1om-* \
| le32-* | le64-* \
| lm32-* \
| m32c-* | m32r-* | m32rle-* \
@@ -410,12 +406,13 @@
| mipsisa64r2-* | mipsisa64r2el-* \
| mipsisa64sb1-* | mipsisa64sb1el-* \
| mipsisa64sr71k-* | mipsisa64sr71kel-* \
+ | mipsr5900-* | mipsr5900el-* \
| mipstx39-* | mipstx39el-* \
| mmix-* \
| mt-* \
| msp430-* \
| nds32-* | nds32le-* | nds32be-* \
- | nios-* | nios2-* \
+ | nios-* | nios2-* | nios2eb-* | nios2el-* \
| none-* | np1-* | ns16k-* | ns32k-* \
| open8-* \
| orion-* \
@@ -799,7 +796,7 @@
os=-mingw64
;;
mingw32)
- basic_machine=i386-pc
+ basic_machine=i686-pc
os=-mingw32
;;
mingw32ce)
@@ -835,7 +832,7 @@
basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
;;
msys)
- basic_machine=i386-pc
+ basic_machine=i686-pc
os=-msys
;;
mvs)
@@ -1357,7 +1354,7 @@
-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
| -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
| -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
- | -sym* | -kopensolaris* \
+ | -sym* | -kopensolaris* | -plan9* \
| -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
| -aos* | -aros* \
| -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
@@ -1503,9 +1500,6 @@
-aros*)
os=-aros
;;
- -kaos*)
- os=-kaos
- ;;
-zvmoe)
os=-zvmoe
;;
@@ -1554,6 +1548,9 @@
c4x-* | tic4x-*)
os=-coff
;;
+ c8051-*)
+ os=-elf
+ ;;
hexagon-*)
os=-elf
;;
@@ -1597,6 +1594,9 @@
mips*-*)
os=-elf
;;
+ or1k-*)
+ os=-elf
+ ;;
or32-*)
os=-coff
;;
diff --git a/configure b/configure
index 19fab5b..496d3be 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for libpng 1.6.3.
+# Generated by GNU Autoconf 2.69 for libpng 1.6.10.
#
# Report bugs to <png-mng-implement@lists.sourceforge.net>.
#
@@ -590,8 +590,8 @@
# Identity of this package.
PACKAGE_NAME='libpng'
PACKAGE_TARNAME='libpng'
-PACKAGE_VERSION='1.6.3'
-PACKAGE_STRING='libpng 1.6.3'
+PACKAGE_VERSION='1.6.10'
+PACKAGE_STRING='libpng 1.6.10'
PACKAGE_BUGREPORT='png-mng-implement@lists.sourceforge.net'
PACKAGE_URL=''
@@ -637,6 +637,12 @@
LTLIBOBJS
PNG_ARM_NEON_FALSE
PNG_ARM_NEON_TRUE
+DO_INSTALL_LIBPNG_CONFIG_FALSE
+DO_INSTALL_LIBPNG_CONFIG_TRUE
+DO_INSTALL_LIBPNG_PC_FALSE
+DO_INSTALL_LIBPNG_PC_TRUE
+DO_INSTALL_LINKS_FALSE
+DO_INSTALL_LINKS_TRUE
DO_PNG_PREFIX_FALSE
DO_PNG_PREFIX_TRUE
PNG_PREFIX
@@ -794,6 +800,9 @@
with_pkgconfigdir
with_binconfigs
with_libpng_prefix
+enable_unversioned_links
+enable_unversioned_libpng_pc
+enable_unversioned_libpng_config
enable_arm_neon
'
ac_precious_vars='build_alias
@@ -1348,7 +1357,7 @@
# Omit some internal or obsolete options to make the list less imposing.
# This message is too long to be a string in the A/UX 3.1 sh.
cat <<_ACEOF
-\`configure' configures libpng 1.6.3 to adapt to many kinds of systems.
+\`configure' configures libpng 1.6.10 to adapt to many kinds of systems.
Usage: $0 [OPTION]... [VAR=VALUE]...
@@ -1418,7 +1427,7 @@
if test -n "$ac_init_help"; then
case $ac_init_help in
- short | recursive ) echo "Configuration of libpng 1.6.3:";;
+ short | recursive ) echo "Configuration of libpng 1.6.10:";;
esac
cat <<\_ACEOF
@@ -1442,6 +1451,34 @@
--disable-libtool-lock avoid locking (might break parallel builds)
--enable-werror[=OPT] Pass -Werror or the given argument to the compiler
if it is supported
+ --enable-unversioned-links
+ Installed libpng header files are placed in a
+ versioned subdirectory and installed libpng library
+ (including DLL) files are versioned. If this option
+ is enabled unversioned links will be created
+ pointing to the corresponding installed files. If
+ you use libpng.pc or libpng-config for all builds
+ you do not need these links, but if you compile
+ programs directly they will typically #include
+ <png.h> and link with -lpng; in that case you need
+ the links. The links can be installed manually using
+ 'make install-header-links' and 'make
+ install-library-links' and can be removed using the
+ corresponding uninstall- targets. If you do enable
+ this option every libpng 'make install' will
+ recreate the links to point to the just installed
+ version of libpng. The default is to create the
+ links; use --disable-unversioned-links to change
+ this
+ --enable-unversioned-libpng-pc
+ Install the configuration file 'libpng.pc' as a link
+ to the versioned version. This is done by default -
+ use --disable-unversioned-libpng-pc to change this.
+ --enable-unversioned-libpng-config
+ Install the configuration file 'libpng-config' as a
+ link to the versioned version. This is done by
+ default - use --disable-unversioned-libpng-config to
+ change this.
--enable-arm-neon Enable ARM NEON optimizations: =no/off, check, api,
yes/on: no/off: disable the optimizations; check:
use internal checking code (deprecated and poorly
@@ -1546,7 +1583,7 @@
test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then
cat <<\_ACEOF
-libpng configure 1.6.3
+libpng configure 1.6.10
generated by GNU Autoconf 2.69
Copyright (C) 2012 Free Software Foundation, Inc.
@@ -1878,7 +1915,7 @@
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
-It was created by libpng $as_me 1.6.3, which was
+It was created by libpng $as_me 1.6.10, which was
generated by GNU Autoconf 2.69. Invocation command line was
$ $0 $@
@@ -2234,7 +2271,7 @@
# dist-xz requires automake 1.11 or later
# 1.12.2 fixes a security issue in 1.11.2 and 1.12.1
# 1.13 is required for parallel tests
-am__api_version='1.13'
+am__api_version='1.14'
ac_aux_dir=
for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
@@ -2749,7 +2786,7 @@
# Define the identity of the package.
PACKAGE='libpng'
- VERSION='1.6.3'
+ VERSION='1.6.10'
cat >>confdefs.h <<_ACEOF
@@ -2789,12 +2826,58 @@
# in the wild :-( We should find a proper way to deprecate it ...
AMTAR='$${TAR-tar}'
+
+# We'll loop over all known methods to create a tar archive until one works.
+_am_tools='gnutar pax cpio none'
+
am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'
+
+# POSIX will say in a future version that running "rm -f" with no argument
+# is OK; and we want to be able to make that assumption in our Makefile
+# recipes. So use an aggressive probe to check that the usage we want is
+# actually supported "in the wild" to an acceptable degree.
+# See automake bug#10828.
+# To make any issue more visible, cause the running configure to be aborted
+# by default if the 'rm' program in use doesn't match our expectations; the
+# user can still override this though.
+if rm -f && rm -fr && rm -rf; then : OK; else
+ cat >&2 <<'END'
+Oops!
+
+Your 'rm' program seems unable to run without file operands specified
+on the command line, even when the '-f' option is present. This is contrary
+to the behaviour of most rm programs out there, and not conforming with
+the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
+
+Please tell bug-automake@gnu.org about your system, including the value
+of your $PATH and any error possibly output before this message. This
+can help us improve future automake versions.
+
+END
+ if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
+ echo 'Configuration will proceed anyway, since you have set the' >&2
+ echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
+ echo >&2
+ else
+ cat >&2 <<'END'
+Aborting the configuration process, to ensure you take notice of the issue.
+
+You can download and install GNU coreutils to get an 'rm' implementation
+that behaves properly: <http://www.gnu.org/software/coreutils/>.
+
+If you want to complete the configuration process using your problematic
+'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
+to "yes", and re-run configure.
+
+END
+ as_fn_error $? "Your 'rm' program is bad, sorry." "$LINENO" 5
+ fi
+fi
# The following line causes --disable-maintainer-mode to be the default to
# configure, this is necessary because libpng distributions cannot rely on the
# time stamps of the autotools generated files being correct
@@ -2823,10 +2906,10 @@
-PNGLIB_VERSION=1.6.3
+PNGLIB_VERSION=1.6.10
PNGLIB_MAJOR=1
PNGLIB_MINOR=6
-PNGLIB_RELEASE=3
+PNGLIB_RELEASE=10
@@ -3628,6 +3711,65 @@
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC understands -c and -o together" >&5
+$as_echo_n "checking whether $CC understands -c and -o together... " >&6; }
+if ${am_cv_prog_cc_c_o+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+ # Make sure it works both with $CC and with simple cc.
+ # Following AC_PROG_CC_C_O, we do the test twice because some
+ # compilers refuse to overwrite an existing .o file with -o,
+ # though they will create one.
+ am_cv_prog_cc_c_o=yes
+ for am_i in 1 2; do
+ if { echo "$as_me:$LINENO: $CC -c conftest.$ac_ext -o conftest2.$ac_objext" >&5
+ ($CC -c conftest.$ac_ext -o conftest2.$ac_objext) >&5 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } \
+ && test -f conftest2.$ac_objext; then
+ : OK
+ else
+ am_cv_prog_cc_c_o=no
+ break
+ fi
+ done
+ rm -f core conftest*
+ unset am_i
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5
+$as_echo "$am_cv_prog_cc_c_o" >&6; }
+if test "$am_cv_prog_cc_c_o" != yes; then
+ # Losing compiler, so override with the script.
+ # FIXME: It is wrong to rewrite CC.
+ # But if we don't then we get into trouble of one sort or another.
+ # A longer-term fix would be to have automake use am__CC in this case,
+ # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
+ CC="$am_aux_dir/compile $CC"
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
DEPDIR="${am__leading_dot}deps"
ac_config_commands="$ac_config_commands depfiles"
@@ -12731,6 +12873,54 @@
fi
+# Control over what links are made for installed files. Versioned files are
+# always installed, when the following options are turned on corresponding
+# unversioned links are also created (normally as symbolic links):
+# Check whether --enable-unversioned-links was given.
+if test "${enable_unversioned_links+set}" = set; then :
+ enableval=$enable_unversioned_links;
+fi
+
+
+# The AM_CONDITIONAL test is written so that the default is enabled;
+# --disable-unversioned-links must be given to turn the option off.
+ if test "$enable_unversioned_links" != "no"; then
+ DO_INSTALL_LINKS_TRUE=
+ DO_INSTALL_LINKS_FALSE='#'
+else
+ DO_INSTALL_LINKS_TRUE='#'
+ DO_INSTALL_LINKS_FALSE=
+fi
+
+
+# Check whether --enable-unversioned-libpng-pc was given.
+if test "${enable_unversioned_libpng_pc+set}" = set; then :
+ enableval=$enable_unversioned_libpng_pc;
+fi
+
+ if test "$enable_unversioned_libpng_pc" != "no"; then
+ DO_INSTALL_LIBPNG_PC_TRUE=
+ DO_INSTALL_LIBPNG_PC_FALSE='#'
+else
+ DO_INSTALL_LIBPNG_PC_TRUE='#'
+ DO_INSTALL_LIBPNG_PC_FALSE=
+fi
+
+
+# Check whether --enable-unversioned-libpng-config was given.
+if test "${enable_unversioned_libpng_config+set}" = set; then :
+ enableval=$enable_unversioned_libpng_config;
+fi
+
+ if test "$enable_unversioned_libpng_config" != "no"; then
+ DO_INSTALL_LIBPNG_CONFIG_TRUE=
+ DO_INSTALL_LIBPNG_CONFIG_FALSE='#'
+else
+ DO_INSTALL_LIBPNG_CONFIG_TRUE='#'
+ DO_INSTALL_LIBPNG_CONFIG_FALSE=
+fi
+
+
# HOST SPECIFIC OPTIONS
# =====================
#
@@ -12952,6 +13142,18 @@
as_fn_error $? "conditional \"DO_PNG_PREFIX\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
+if test -z "${DO_INSTALL_LINKS_TRUE}" && test -z "${DO_INSTALL_LINKS_FALSE}"; then
+ as_fn_error $? "conditional \"DO_INSTALL_LINKS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${DO_INSTALL_LIBPNG_PC_TRUE}" && test -z "${DO_INSTALL_LIBPNG_PC_FALSE}"; then
+ as_fn_error $? "conditional \"DO_INSTALL_LIBPNG_PC\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${DO_INSTALL_LIBPNG_CONFIG_TRUE}" && test -z "${DO_INSTALL_LIBPNG_CONFIG_FALSE}"; then
+ as_fn_error $? "conditional \"DO_INSTALL_LIBPNG_CONFIG\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
if test -z "${PNG_ARM_NEON_TRUE}" && test -z "${PNG_ARM_NEON_FALSE}"; then
as_fn_error $? "conditional \"PNG_ARM_NEON\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
@@ -13353,7 +13555,7 @@
# report actual input values of CONFIG_FILES etc. instead of their
# values after options handling.
ac_log="
-This file was extended by libpng $as_me 1.6.3, which was
+This file was extended by libpng $as_me 1.6.10, which was
generated by GNU Autoconf 2.69. Invocation command line was
CONFIG_FILES = $CONFIG_FILES
@@ -13419,7 +13621,7 @@
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
ac_cs_version="\\
-libpng config.status 1.6.3
+libpng config.status 1.6.10
configured by $0, generated by GNU Autoconf 2.69,
with options \\"\$ac_cs_config\\"
@@ -14480,7 +14682,7 @@
DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
test -z "$DEPDIR" && continue
am__include=`sed -n 's/^am__include = //p' < "$mf"`
- test -z "am__include" && continue
+ test -z "$am__include" && continue
am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
# Find all dependency output files, they are included files with
# $(DEPDIR) in their names. We invoke sed twice because it is the
diff --git a/configure.ac b/configure.ac
index 0ef3c64..a1ec129 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,7 +18,7 @@
dnl Version number stuff here:
-AC_INIT([libpng],[1.6.3],[png-mng-implement@lists.sourceforge.net])
+AC_INIT([libpng],[1.6.10],[png-mng-implement@lists.sourceforge.net])
AC_CONFIG_MACRO_DIR([scripts])
# libpng does not follow GNU file name conventions (hence 'foreign')
@@ -27,7 +27,7 @@
# dist-xz requires automake 1.11 or later
# 1.12.2 fixes a security issue in 1.11.2 and 1.12.1
# 1.13 is required for parallel tests
-AM_INIT_AUTOMAKE([1.13 foreign dist-xz color-tests silent-rules])
+AM_INIT_AUTOMAKE([1.13 foreign dist-xz color-tests silent-rules subdir-objects])
# The following line causes --disable-maintainer-mode to be the default to
# configure, this is necessary because libpng distributions cannot rely on the
# time stamps of the autotools generated files being correct
@@ -39,10 +39,10 @@
dnl AM_PREREQ([1.11.2])
dnl stop configure from automagically running automake
-PNGLIB_VERSION=1.6.3
+PNGLIB_VERSION=1.6.10
PNGLIB_MAJOR=1
PNGLIB_MINOR=6
-PNGLIB_RELEASE=3
+PNGLIB_RELEASE=10
dnl End of version number stuff
@@ -226,6 +226,45 @@
fi])
AM_CONDITIONAL([DO_PNG_PREFIX], [test "${with_libpng_prefix:-no}" != "no"])
+# Control over what links are made for installed files. Versioned files are
+# always installed, when the following options are turned on corresponding
+# unversioned links are also created (normally as symbolic links):
+AC_ARG_ENABLE([unversioned-links],
+ AS_HELP_STRING([[[--enable-unversioned-links]]],
+ [Installed libpng header files are placed in a versioned subdirectory]
+ [and installed libpng library (including DLL) files are versioned.]
+ [If this option is enabled unversioned links will be created pointing to]
+ [the corresponding installed files. If you use libpng.pc or]
+ [libpng-config for all builds you do not need these links, but if you]
+ [compile programs directly they will typically #include <png.h> and]
+ [link with -lpng; in that case you need the links.]
+ [The links can be installed manually using 'make install-header-links']
+ [and 'make install-library-links' and can be removed using the]
+ [corresponding uninstall- targets. If you do enable this option every]
+ [libpng 'make install' will recreate the links to point to the just]
+ [installed version of libpng. The default is to create the links;]
+ [use --disable-unversioned-links to change this]))
+
+# The AM_CONDITIONAL test is written so that the default is enabled;
+# --disable-unversioned-links must be given to turn the option off.
+AM_CONDITIONAL([DO_INSTALL_LINKS],[test "$enable_unversioned_links" != "no"])
+
+AC_ARG_ENABLE([unversioned-libpng-pc],
+ AS_HELP_STRING([[[--enable-unversioned-libpng-pc]]],
+ [Install the configuration file 'libpng.pc' as a link to the versioned]
+ [version. This is done by default - use --disable-unversioned-libpng-pc]
+ [to change this.]))
+AM_CONDITIONAL([DO_INSTALL_LIBPNG_PC],
+ [test "$enable_unversioned_libpng_pc" != "no"])
+
+AC_ARG_ENABLE([unversioned-libpng-config],
+ AS_HELP_STRING([[[--enable-unversioned-libpng-config]]],
+ [Install the configuration file 'libpng-config' as a link to the]
+ [versioned version. This is done by default - use]
+ [--disable-unversioned-libpng-config to change this.]))
+AM_CONDITIONAL([DO_INSTALL_LIBPNG_CONFIG],
+ [test "$enable_unversioned_libpng_config" != "no"])
+
# HOST SPECIFIC OPTIONS
# =====================
#
diff --git a/contrib/arm-neon/README b/contrib/arm-neon/README
new file mode 100644
index 0000000..535c8d3
--- /dev/null
+++ b/contrib/arm-neon/README
@@ -0,0 +1,83 @@
+OPERATING SYSTEM SPECIFIC ARM NEON DETECTION
+--------------------------------------------
+
+Detection of the ability to exexcute ARM NEON on an ARM processor requires
+operating system support. (The information is not available in user mode.)
+
+HOW TO USE THIS
+---------------
+
+This directory contains C code fragments that can be included in arm/arm_init.c
+by setting the macro PNG_ARM_NEON_FILE to the file name in "" or <> at build
+time. This setting is not recorded in pnglibconf.h and can be changed simply by
+rebuilding arm/arm_init.o with the required macro definition.
+
+For any of this code to be used the ARM NEON code must be enabled and run time
+checks must be supported. I.e.:
+
+#if PNG_ARM_NEON_OPT > 0
+#ifdef PNG_ARM_NEON_CHECK_SUPPORTED
+
+This is done in a 'configure' build by passing configure the argument:
+
+ --enable-arm-neon=check
+
+Apart from the basic Linux implementation in contrib/arm-neon/linux.c this code
+is unsupported. That means that it is not even compiled on a regular basis and
+may be broken in any given minor release.
+
+FILE FORMAT
+-----------
+
+Each file documents its testing status as of the last time it was tested (which
+may have been a long time ago):
+
+STATUS: one of:
+ SUPPORTED: This indicates that the file is included in the regularly
+ performed test builds and bugs are fixed when discovered.
+ COMPILED: This indicates that the code did compile at least once. See the
+ more detailed description for the extent to which the result was
+ successful.
+ TESTED: This means the code was fully compiled into the libpng test programs
+ and these were run at least once.
+
+BUG REPORTS: an email address to which to send reports of problems
+
+The file is a fragment of C code. It should not define any 'extern' symbols;
+everything should be static. It must define the function:
+
+static int png_have_neon(png_structp png_ptr);
+
+That function must return 1 if ARM NEON instructions are supported, 0 if not.
+It must not execute png_error unless it detects a bug. A png_error will prevent
+the reading of the PNG and in the future, writing too.
+
+BUG REPORTS
+-----------
+
+If you mail a bug report for any file that is not SUPPORTED there may only be
+limited response. Consider fixing it and sending a patch to fix the problem -
+this is more likely to result in action.
+
+CONTRIBUTIONS
+-------------
+
+You may send contributions of new implementations to
+png-mng-implement@sourceforge.net. Please write code in strict C90 C where
+possible. Obviously OS dependencies are to be expected. If you submit code you
+must have the authors permission and it must have a license that is acceptable
+to the current maintainer; in particular that license must permit modification
+and redistribution.
+
+Please try to make the contribution a single file and give the file a clear and
+unambiguous name that identifies the target OS. If multiple files really are
+required put them all in a sub-directory.
+
+You must also be prepared to handle bug reports from users of the code, either
+by joining the png-mng-implement mailing list or by providing an email for the
+"BUG REPORTS" entry or both. Please make sure that the header of the file
+contains the STATUS and BUG REPORTS fields as above.
+
+Please list the OS requirements as precisely as possible. Ideally you should
+also list the environment in which the code has been tested and certainly list
+any environments where you suspect it might not work.
diff --git a/contrib/arm-neon/android-ndk.c b/contrib/arm-neon/android-ndk.c
new file mode 100644
index 0000000..7240123
--- /dev/null
+++ b/contrib/arm-neon/android-ndk.c
@@ -0,0 +1,39 @@
+/* contrib/arm-neon/android-ndk.c
+ *
+ * Copyright (c) 2014 Glenn Randers-Pehrson
+ * Written by John Bowler, 2014.
+ * Last changed in libpng 1.6.10 [March 6, 2014]
+ *
+ * This code is released under the libpng license.
+ * For conditions of distribution and use, see the disclaimer
+ * and license in png.h
+ *
+ * SEE contrib/arm-neon/README before reporting bugs
+ *
+ * STATUS: COMPILED, UNTESTED
+ * BUG REPORTS: png-mng-implement@sourceforge.net
+ *
+ * png_have_neon implemented for the Android NDK, see:
+ *
+ * Documentation:
+ * http://www.kandroid.org/ndk/docs/CPU-ARM-NEON.html
+ * http://code.google.com/p/android/issues/detail?id=49065
+ *
+ * NOTE: this requires that libpng is built against the Android NDK and linked
+ * with an implementation of the Android ARM 'cpu-features' library. The code
+ * has been compiled only, not linked: no version of the library has been found,
+ * only the header files exist in the NDK.
+ */
+#include <cpu-features.h>
+
+static int
+png_have_neon(png_structp png_ptr)
+{
+ /* This is a whole lot easier than the linux code, however it is probably
+ * implemented as below, therefore it is better to cache the result (these
+ * function calls may be slow!)
+ */
+ PNG_UNUSED(png_ptr)
+ return android_getCpuFamily() == ANDROID_CPU_FAMILY_ARM &&
+ (android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_NEON) != 0;
+}
diff --git a/contrib/arm-neon/linux-auxv.c b/contrib/arm-neon/linux-auxv.c
new file mode 100644
index 0000000..696e297
--- /dev/null
+++ b/contrib/arm-neon/linux-auxv.c
@@ -0,0 +1,120 @@
+/* contrib/arm-neon/linux-auxv.c
+ *
+ * Copyright (c) 2014 Glenn Randers-Pehrson
+ * Written by Mans Rullgard, 2011.
+ * Last changed in libpng 1.6.10 [March 6, 2014]
+ *
+ * This code is released under the libpng license.
+ * For conditions of distribution and use, see the disclaimer
+ * and license in png.h
+ *
+ * SEE contrib/arm-neon/README before reporting bugs
+ *
+ * STATUS: COMPILED, TESTED
+ * BUG REPORTS: png-mng-implement@sourceforge.net
+ *
+ * png_have_neon implemented for Linux versions which allow access to
+ * /proc/self/auxv. This is probably faster, cleaner and safer than the code to
+ * read /proc/cpuinfo in contrib/arm-neon/linux, however it is yet another piece
+ * of potentially untested code and has more complex dependencies than the code
+ * to read cpuinfo.
+ *
+ * This generic __linux__ implementation requires reading /proc/self/auxv and
+ * looking at each element for one that records NEON capabilities.
+ */
+#include <unistd.h> /* for POSIX 1003.1 */
+#include <errno.h> /* for EINTR */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <elf.h>
+#include <asm/hwcap.h>
+
+/* A read call may be interrupted, in which case it returns -1 and sets errno to
+ * EINTR if nothing was done, otherwise (if something was done) a partial read
+ * may result.
+ */
+static size_t
+safe_read(png_structp png_ptr, int fd, void *buffer_in, size_t nbytes)
+{
+ size_t ntotal = 0;
+ char *buffer = png_voidcast(char*, buffer_in);
+
+ while (nbytes > 0)
+ {
+ unsigned int nread;
+ int iread;
+
+ /* Passing nread > INT_MAX to read is implementation defined in POSIX
+ * 1003.1, therefore despite the unsigned argument portable code must
+ * limit the value to INT_MAX!
+ */
+ if (nbytes > INT_MAX)
+ nread = INT_MAX;
+
+ else
+ nread = (unsigned int)/*SAFE*/nbytes;
+
+ iread = read(fd, buffer, nread);
+
+ if (iread == -1)
+ {
+ /* This is the devil in the details, a read can terminate early with 0
+ * bytes read because of EINTR, yet it still returns -1 otherwise end
+ * of file cannot be distinguished.
+ */
+ if (errno != EINTR)
+ {
+ png_warning(png_ptr, "/proc read failed");
+ return 0; /* I.e., a permanent failure */
+ }
+ }
+
+ else if (iread < 0)
+ {
+ /* Not a valid 'read' result: */
+ png_warning(png_ptr, "OS /proc read bug");
+ return 0;
+ }
+
+ else if (iread > 0)
+ {
+ /* Continue reading until a permanent failure, or EOF */
+ buffer += iread;
+ nbytes -= (unsigned int)/*SAFE*/iread;
+ ntotal += (unsigned int)/*SAFE*/iread;
+ }
+
+ else
+ return ntotal;
+ }
+
+ return ntotal; /* nbytes == 0 */
+}
+
+static int
+png_have_neon(png_structp png_ptr)
+{
+ int fd = open("/proc/self/auxv", O_RDONLY);
+ Elf32_auxv_t aux;
+
+ /* Failsafe: failure to open means no NEON */
+ if (fd == -1)
+ {
+ png_warning(png_ptr, "/proc/self/auxv open failed");
+ return 0;
+ }
+
+ while (safe_read(png_ptr, fd, &aux, sizeof aux) == sizeof aux)
+ {
+ if (aux.a_type == AT_HWCAP && (aux.a_un.a_val & HWCAP_NEON) != 0)
+ {
+ close(fd);
+ return 1;
+ }
+ }
+
+ close(fd);
+ return 0;
+}
diff --git a/contrib/arm-neon/linux.c b/contrib/arm-neon/linux.c
new file mode 100644
index 0000000..182f376
--- /dev/null
+++ b/contrib/arm-neon/linux.c
@@ -0,0 +1,159 @@
+/* contrib/arm-neon/linux.c
+ *
+ * Copyright (c) 2014 Glenn Randers-Pehrson
+ * Written by John Bowler, 2014.
+ * Last changed in libpng 1.6.10 [March 6, 2014]
+ *
+ * This code is released under the libpng license.
+ * For conditions of distribution and use, see the disclaimer
+ * and license in png.h
+ *
+ * SEE contrib/arm-neon/README before reporting bugs
+ *
+ * STATUS: SUPPORTED
+ * BUG REPORTS: png-mng-implement@sourceforge.net
+ *
+ * png_have_neon implemented for Linux by reading the widely available
+ * pseudo-file /proc/cpuinfo.
+ *
+ * This code is strict ANSI-C and is probably moderately portable, it does
+ * however use <stdio.h> and assumes that /proc/cpuinfo is never localized.
+ */
+#include <stdio.h>
+
+static int
+png_have_neon(png_structp png_ptr)
+{
+ FILE *f = fopen("/proc/cpuinfo", "rb");
+
+ if (f != NULL)
+ {
+ /* This is a simple state machine which reads the input byte-by-byte until
+ * it gets a match on the 'neon' feature or reaches the end of the stream.
+ */
+ static const char ch_feature[] = { 70, 69, 65, 84, 85, 82, 69, 83 };
+ static const char ch_neon[] = { 78, 69, 79, 78 };
+
+ enum
+ {
+ StartLine, Feature, Colon, StartTag, Neon, HaveNeon, SkipTag, SkipLine
+ } state;
+ int counter;
+
+ for (state=StartLine, counter=0;;)
+ {
+ int ch = fgetc(f);
+
+ if (ch == EOF)
+ {
+ /* EOF means error or end-of-file, return false; neon at EOF is
+ * assumed to be a mistake.
+ */
+ fclose(f);
+ return 0;
+ }
+
+ switch (state)
+ {
+ case StartLine:
+ /* Match spaces at the start of line */
+ if (ch <= 32) /* skip control characters and space */
+ break;
+
+ counter=0;
+ state = Feature;
+ /* FALL THROUGH */
+
+ case Feature:
+ /* Match 'FEATURE', ASCII case insensitive. */
+ if ((ch & ~0x20) == ch_feature[counter])
+ {
+ if (++counter == (sizeof ch_feature))
+ state = Colon;
+ break;
+ }
+
+ /* did not match 'feature' */
+ state = SkipLine;
+ /* FALL THROUGH */
+
+ case SkipLine:
+ skipLine:
+ /* Skip everything until we see linefeed or carriage return */
+ if (ch != 10 && ch != 13)
+ break;
+
+ state = StartLine;
+ break;
+
+ case Colon:
+ /* Match any number of space or tab followed by ':' */
+ if (ch == 32 || ch == 9)
+ break;
+
+ if (ch == 58) /* i.e. ':' */
+ {
+ state = StartTag;
+ break;
+ }
+
+ /* Either a bad line format or a 'feature' prefix followed by
+ * other characters.
+ */
+ state = SkipLine;
+ goto skipLine;
+
+ case StartTag:
+ /* Skip space characters before a tag */
+ if (ch == 32 || ch == 9)
+ break;
+
+ state = Neon;
+ counter = 0;
+ /* FALL THROUGH */
+
+ case Neon:
+ /* Look for 'neon' tag */
+ if ((ch & ~0x20) == ch_neon[counter])
+ {
+ if (++counter == (sizeof ch_neon))
+ state = HaveNeon;
+ break;
+ }
+
+ state = SkipTag;
+ /* FALL THROUGH */
+
+ case SkipTag:
+ /* Skip non-space characters */
+ if (ch == 10 || ch == 13)
+ state = StartLine;
+
+ else if (ch == 32 || ch == 9)
+ state = StartTag;
+ break;
+
+ case HaveNeon:
+ /* Have seen a 'neon' prefix, but there must be a space or new
+ * line character to terminate it.
+ */
+ if (ch == 10 || ch == 13 || ch == 32 || ch == 9)
+ {
+ fclose(f);
+ return 1;
+ }
+
+ state = SkipTag;
+ break;
+
+ default:
+ png_error(png_ptr, "png_have_neon: internal error (bug)");
+ }
+ }
+ }
+
+ else
+ png_warning(png_ptr, "/proc/cpuinfo open failed");
+
+ return 0;
+}
diff --git a/contrib/conftest/README b/contrib/conftest/README
new file mode 100644
index 0000000..0f47279
--- /dev/null
+++ b/contrib/conftest/README
@@ -0,0 +1,49 @@
+This directory contains test configuration files, currently always '.dfa' files
+intended to be used in the build by setting the make macro DFA_XTRA to the name
+of the file.
+
+These files are used in release validation of the 'configure' builds of libpng
+by building 'make check', or 'make all-am' for cross-builds, with each .dfa
+file.
+
+The files in this directory may change between minor releases, however
+contributions describing specific builds of libpng are welcomed. There is no
+guarantee that libpng will continue to build with such configurations; support
+for given configurations can be, and has been, dropped between successive minor
+releases. However if a .dfa file describing a configuration is not in this
+directory it is very unlikely that it will be tested before a minor release!
+
+You can use these .dfa files as the basis of new configurations. Files in this
+directory should not have any use restrictions or restrictive licenses.
+
+This directory is not included in the .zip and .7z distributions, which do
+not contain 'configure' scripts.
+
+DOCUMENTATION
+=============
+
+Examples:
+ ${srcdir}/pngusr.dfa
+ ${srcdir}/contrib/pngminim/*/pngusr.dfa
+
+Documentation of the options:
+ ${srcdir}/scripts/pnglibconf.dfa
+
+Documentation of the file format:
+ ${srcdir}/scripts/options.awk
+
+FILE NAMING
+===========
+
+File names in this directory may NOT contain any of the five characters:
+
+ - , + * ?
+
+Neither may they contain any space character.
+
+While other characters may be used it is strongly suggested that file names be
+limited to lower case Latiin alphabetic characters (a-z), digits (0-9) and, if
+necessary the underscore (_) character. File names should be about 8 characters
+long (excluding the .dfa extension). Submitted .dfa files should have names
+between 7 and 16 characters long, shorter names (6 characters or less) are
+reserved for standard tests.
diff --git a/contrib/conftest/read.dfa b/contrib/conftest/read.dfa
new file mode 100644
index 0000000..21e88d0
--- /dev/null
+++ b/contrib/conftest/read.dfa
@@ -0,0 +1,58 @@
+# read.dfa
+# Build time configuration of libpng
+#
+# Author: John Bowler
+# Copyright: (c) John Bowler, 2013
+# Usage rights:
+# To the extent possible under law, the author has waived all copyright and
+# related or neighboring rights to this work. This work is published from:
+# United States.
+#
+# Build libpng with basic read support. This enables the lowest level libpng
+# read API - the one where the calling code has to use a loop to read each row.
+# At present this is the API used by most programs.
+#
+# Support is enabled only for those chunks and transformations that are
+# typically required - others can be added easily.
+#
+
+everything = off
+
+# The sequential read code is enabled here; the progressive code can be used
+# instead but there is no point enabling both.
+
+option SEQUENTIAL_READ on
+
+# Likewise it is pointless enabling both fixed and floating point APIs. Choose
+# one or the other for both the API and the internal math.
+
+#Fixed point:
+#option FIXED_POINT on
+#option FLOATING_ARITHMETIC off
+
+#Floating point:
+option FLOATING_POINT on
+option FLOATING_ARITHMETIC on
+
+# Basic error handling, IO and user memory support. The latter allows the
+# application program to provide its own implementations of 'malloc' and 'free'.
+option SETJMP on
+option STDIO on
+option USER_MEM on
+
+# To read the full set of PNG images correctly interlace, transparency and
+# 16-bit support is required. The application can implement interlace itself,
+# but very few do and it's no longer possible to disable it when READ is
+# enabled.
+option READ_tRNS on
+option READ_16BIT on
+
+# Everything else is application dependent. This file assumes the app handles
+# all the native PNG bit layouts, so it doesn't need any of layout change
+# transforms, but needs libpng to perform gamma correction. It doesn't do any
+# colorspace stuff and ignores the 'significant bit' information.
+#
+# If your app always expands the image to a limited set of bit layouts you
+# probably want to consider using the simplified API instead of the low level
+# one - see png.h and s_read.dfa.
+option READ_GAMMA on
diff --git a/contrib/conftest/s_read.dfa b/contrib/conftest/s_read.dfa
new file mode 100644
index 0000000..cb1ce0b
--- /dev/null
+++ b/contrib/conftest/s_read.dfa
@@ -0,0 +1,35 @@
+# s_read.dfa
+# Build time configuration of libpng
+#
+# Author: John Bowler
+# Copyright: (c) John Bowler, 2013
+# Usage rights:
+# To the extent possible under law, the author has waived all copyright and
+# related or neighboring rights to this work. This work is published from:
+# United States.
+#
+# Build libpng with simplified read support (only). This builds a minimal
+# libpng able to read all PNG formats and convert them into a small number of
+# well understood memory formats.
+#
+
+everything = off
+
+option SIMPLIFIED_READ on
+
+# It isn't necessary to chose fixed or floating point for the APIs because the
+# simplified API doesn't need fixed or floating point numbers. It is necessary
+# to chose an internal math implementation. The default (because of 'everything
+# = off') is fixed point - turn the floating point implementation on if you have
+# hardware floating point or prefer your software floating point implementation.
+option FLOATING_ARITHMETIC on
+
+# This is not strictly necessary, but without it the message strings in the API
+# will not be filled in
+option ERROR_TEXT on
+
+# Switching these options on enables the 'AFIRST' and 'BGR' formats - you don't
+# need this if you don't use them, they just allow the in-memory layout to be
+# changed to match common hardware formats.
+option SIMPLIFIED_READ_AFIRST on
+option SIMPLIFIED_READ_BGR on
diff --git a/contrib/conftest/s_write.dfa b/contrib/conftest/s_write.dfa
new file mode 100644
index 0000000..e540a46
--- /dev/null
+++ b/contrib/conftest/s_write.dfa
@@ -0,0 +1,33 @@
+# s_write.dfa
+# Build time configuration of libpng
+#
+# Author: John Bowler
+# Copyright: (c) John Bowler, 2013
+# Usage rights:
+# To the extent possible under law, the author has waived all copyright and
+# related or neighboring rights to this work. This work is published from:
+# United States.
+#
+# Build libpng with (just) simplified write support
+#
+
+everything = off
+
+option SIMPLIFIED_WRITE on
+
+# It isn't necessary to chose fixed or floating point for the APIs because the
+# simplified API doesn't need fixed or floating point numbers. It is necessary
+# to chose an internal math implementation. The default (because of 'everything
+# = off') is fixed point - turn the floating point implementation on if you have
+# hardware floating point or prefer your software floating point implementation.
+option FLOATING_ARITHMETIC on
+
+# This is not strictly necessary, but without it the message strings in the API
+# will not be filled in
+option ERROR_TEXT on
+
+# Switching these options on enables the 'AFIRST' and 'BGR' formats - you don't
+# need this if you don't use them, they just allow the in-memory layout to be
+# changed to match common hardware formats.
+option SIMPLIFIED_WRITE_AFIRST on
+option SIMPLIFIED_WRITE_BGR on
diff --git a/contrib/conftest/simple.dfa b/contrib/conftest/simple.dfa
new file mode 100644
index 0000000..0419333
--- /dev/null
+++ b/contrib/conftest/simple.dfa
@@ -0,0 +1,36 @@
+# simple.dfa
+# Build time configuration of libpng
+#
+# Author: John Bowler
+# Copyright: (c) John Bowler, 2013
+# Usage rights:
+# To the extent possible under law, the author has waived all copyright and
+# related or neighboring rights to this work. This work is published from:
+# United States.
+#
+# Build libpng with just the simplified APIs (read and write).
+#
+
+everything = off
+
+option SIMPLIFIED_WRITE on
+option SIMPLIFIED_READ on
+
+# It isn't necessary to chose fixed or floating point for the APIs because the
+# simplified API doesn't need fixed or floating point numbers. It is necessary
+# to chose an internal math implementation. The default (because of 'everything
+# = off') is fixed point - turn the floating point implementation on if you have
+# hardware floating point or prefer your software floating point implementation.
+option FLOATING_ARITHMETIC on
+
+# This is not strictly necessary, but without it the message strings in the API
+# will not be filled in
+option ERROR_TEXT on
+
+# Switching these options on enables the 'AFIRST' and 'BGR' formats - you don't
+# need this if you don't use them, they just allow the in-memory layout to be
+# changed to match common hardware formats.
+option SIMPLIFIED_READ_AFIRST on
+option SIMPLIFIED_READ_BGR on
+option SIMPLIFIED_WRITE_AFIRST on
+option SIMPLIFIED_WRITE_BGR on
diff --git a/contrib/conftest/write.dfa b/contrib/conftest/write.dfa
new file mode 100644
index 0000000..3319aab
--- /dev/null
+++ b/contrib/conftest/write.dfa
@@ -0,0 +1,45 @@
+# write.dfa
+# Build time configuration of libpng
+#
+# Author: John Bowler
+# Copyright: (c) John Bowler, 2013
+# Usage rights:
+# To the extent possible under law, the author has waived all copyright and
+# related or neighboring rights to this work. This work is published from:
+# United States.
+#
+# Build libpng with no read support and minimal write support.
+#
+
+everything = off
+
+# Switch on the write code - this makes a minimalist encoder
+
+option WRITE on
+
+# Choose fixed or floating point APIs and arithmetic. The choices are
+# independent but normally they will match. It is typically better to use the
+# floating point if you have floating point hardware. If you don't know, or
+# (perhaps) to make libpng smaller used fixed point throughout.
+
+#Fixed point:
+#option FIXED_POINT on
+#option FLOATING_ARITHMETIC off
+
+#Floating point:
+option FLOATING_POINT on
+option FLOATING_ARITHMETIC on
+
+# Basic error handling, IO and user memory support. The latter allows the
+# application program to provide its own implementations of 'malloc' and 'free'.
+option SETJMP on
+option STDIO on
+option USER_MEM on
+
+# Everything else is optional. Unlike the read code in libpng the write code
+# does not need to deal with arbitrary formats, so only add support for things
+# you really do write! For example you might only write sRGB images, sometimes
+# with transparency and never write 16 bit images, so:
+option WRITE_sRGB on
+option WRITE_tRNS on
+#option WRITE_16BIT off (this is the default with 'everything = off')
diff --git a/contrib/examples/iccfrompng.c b/contrib/examples/iccfrompng.c
index 6767621..386e522 100644
--- a/contrib/examples/iccfrompng.c
+++ b/contrib/examples/iccfrompng.c
@@ -6,9 +6,9 @@
* United States.
*
* Extract any icc profiles found in the given PNG files. This is a simple
- * example of a program which extracts information from the header of a PNG file
+ * example of a program that extracts information from the header of a PNG file
* without processing the image. Notice that some header information may occur
- * after the image data, textual data and comments are an example; the approach
+ * after the image data. Textual data and comments are an example; the approach
* in this file won't work reliably for such data because it only looks for the
* information in the section of the file that preceeds the image data.
*
diff --git a/contrib/examples/pngpixel.c b/contrib/examples/pngpixel.c
index 4104760..e0d43e3 100644
--- a/contrib/examples/pngpixel.c
+++ b/contrib/examples/pngpixel.c
@@ -8,7 +8,7 @@
* Read a single pixel value from a PNG file.
*
* This code illustrates basic 'by-row' reading of a PNG file using libpng.
- * Rows are read until a particular pixel is found, the value of this pixel is
+ * Rows are read until a particular pixel is found; the value of this pixel is
* then printed on stdout.
*
* The code illustrates how to do this on interlaced as well as non-interlaced
@@ -56,7 +56,7 @@
case 8: return row[0];
case 16: return (row[0] << 8) + row[1];
default:
- /* This should never happen, it indicates a bug in this program or in
+ /* This should never happen; it indicates a bug in this program or in
* libpng itself:
*/
fprintf(stderr, "pngpixel: invalid bit depth %u\n", bit_depth);
@@ -132,7 +132,7 @@
return;
default:
- png_error(png_ptr, "invalid color type");
+ png_error(png_ptr, "pngpixel: invalid color type");
}
}
diff --git a/contrib/gregbook/Makefile.mingw32 b/contrib/gregbook/Makefile.mingw32
index e70a59a..3a3ff60 100644
--- a/contrib/gregbook/Makefile.mingw32
+++ b/contrib/gregbook/Makefile.mingw32
@@ -47,7 +47,8 @@
#CC = i386-mingw32msvc-gcc # e.g., Linux -> Win32 cross-compilation
LD = $(CC)
RM = rm -f
-CFLAGS = -O -Wall $(INCS) $(MINGW_CCFLAGS)
+CPPFLAGS = $(INCS)
+CFLAGS = -O -Wall $(MINGW_CCFLAGS)
# [note that -Wall is a gcc-specific compilation flag ("most warnings on")]
# [-ansi, -pedantic and -W can also be used]
LDFLAGS = $(MINGW_LDFLAGS)
@@ -85,10 +86,10 @@
# implicit make rules -------------------------------------------------------
.c$(O):
- $(CC) -c $(CFLAGS) $<
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
%.pic$(O): %.c
- $(CC) -c $(CFLAGS) -DPNG_BUILD_DLL -o $@ $<
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -DPNG_BUILD_DLL -o $@ $<
# dependencies --------------------------------------------------------------
diff --git a/contrib/gregbook/Makefile.sgi b/contrib/gregbook/Makefile.sgi
index 6c3bdf1..94d61b4 100644
--- a/contrib/gregbook/Makefile.sgi
+++ b/contrib/gregbook/Makefile.sgi
@@ -53,7 +53,8 @@
LD = cc
RM = rm -f
# ABI must be the same as that used to build libpng.
-ABI=
+ABI =
+CPPFLAGS =
CFLAGS = $(ABI) -O -fullwarn $(INCS)
LDFLAGS = $(ABI)
O = .o
@@ -73,7 +74,7 @@
# implicit make rules -------------------------------------------------------
.c$(O):
- $(CC) -c $(CFLAGS) $<
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
# dependencies --------------------------------------------------------------
diff --git a/contrib/gregbook/Makefile.unx b/contrib/gregbook/Makefile.unx
index d5e4f35..c8cadf8 100644
--- a/contrib/gregbook/Makefile.unx
+++ b/contrib/gregbook/Makefile.unx
@@ -64,7 +64,8 @@
CC = gcc
LD = gcc
RM = rm -f
-CFLAGS = -O -Wall $(INCS) -DFEATURE_LOOP
+CPPFLAGS = $(INCS) -DFEATURE_LOOP
+CFLAGS = -O -Wall
# [note that -Wall is a gcc-specific compilation flag ("most warnings on")]
# [-ansi, -pedantic and -W can also be used]
LDFLAGS =
@@ -92,7 +93,7 @@
# implicit make rules -------------------------------------------------------
.c$(O):
- $(CC) -c $(CFLAGS) $<
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
# dependencies --------------------------------------------------------------
diff --git a/contrib/gregbook/Makefile.w32 b/contrib/gregbook/Makefile.w32
index 41cfb23..ab7dcf7 100644
--- a/contrib/gregbook/Makefile.w32
+++ b/contrib/gregbook/Makefile.w32
@@ -53,7 +53,8 @@
CC = cl
LD = link
RM = del
-CFLAGS = -nologo -O -W3 $(INCS) $(cvars)
+CPPFLAGS = $(INCS)
+CFLAGS = -nologo -O -W3 $(cvars)
# [note that -W3 is an MSVC-specific compilation flag ("all warnings on")]
# [see %devstudio%\vc\include\win32.mak for cvars macro definition]
O = .obj
@@ -76,7 +77,7 @@
# implicit make rules -------------------------------------------------------
.c$(O):
- $(CC) -c $(CFLAGS) $<
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
# dependencies --------------------------------------------------------------
diff --git a/contrib/gregbook/readpng2.c b/contrib/gregbook/readpng2.c
index e179db7..e6a132e 100644
--- a/contrib/gregbook/readpng2.c
+++ b/contrib/gregbook/readpng2.c
@@ -69,6 +69,7 @@
png_uint_32 row_num, int pass);
static void readpng2_end_callback(png_structp png_ptr, png_infop info_ptr);
static void readpng2_error_handler(png_structp png_ptr, png_const_charp msg);
+static void readpng2_warning_handler(png_structp png_ptr, png_const_charp msg);
@@ -104,7 +105,7 @@
/* could also replace libpng warning-handler (final NULL), but no need: */
png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, mainprog_ptr,
- readpng2_error_handler, NULL);
+ readpng2_error_handler, readpng2_warning_handler);
if (!png_ptr)
return 4; /* out of memory */
@@ -467,7 +468,11 @@
}
-
+static void readpng2_warning_handler(png_structp png_ptr, png_const_charp msg)
+{
+ fprintf(stderr, "readpng2 libpng warning: %s\n", msg);
+ fflush(stderr);
+}
static void readpng2_error_handler(png_structp png_ptr, png_const_charp msg)
diff --git a/contrib/libtests/pngimage.c b/contrib/libtests/pngimage.c
new file mode 100644
index 0000000..372845e
--- /dev/null
+++ b/contrib/libtests/pngimage.c
@@ -0,0 +1,1618 @@
+/* pngimage.c
+ *
+ * Copyright (c) 2014 John Cunningham Bowler
+ *
+ * Last changed in libpng 1.6.10 [March 6, 2014]
+ *
+ * This code is released under the libpng license.
+ * For conditions of distribution and use, see the disclaimer
+ * and license in png.h
+ *
+ * Test the png_read_png and png_write_png interfaces. Given a PNG file load it
+ * using png_read_png and then write with png_write_png. Test all possible
+ * transforms.
+ */
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <stdio.h>
+#include <assert.h>
+
+#if defined(HAVE_CONFIG_H) && !defined(PNG_NO_CONFIG_H)
+# include <config.h>
+#endif
+
+/* Define the following to use this test against your installed libpng, rather
+ * than the one being built here:
+ */
+#ifdef PNG_FREESTANDING_TESTS
+# include <png.h>
+#else
+# include "../../png.h"
+#endif
+
+#ifndef PNG_SETJMP_SUPPORTED
+# include <setjmp.h> /* because png.h did *not* include this */
+#endif
+
+#if defined(PNG_INFO_IMAGE_SUPPORTED) && defined(PNG_SEQUENTIAL_READ_SUPPORTED)
+/* If a transform is valid on both read and write this implies that if the
+ * transform is applied to read it must also be applied on write to produce
+ * meaningful data. This is because these transforms when performed on read
+ * produce data with a memory format that does not correspond to a PNG format.
+ *
+ * Most of these transforms are invertible; after applying the transform on
+ * write the result is the original PNG data that would have would have been
+ * read if no transform were applied.
+ *
+ * The exception is _SHIFT, which destroys the low order bits marked as not
+ * significant in a PNG with the sBIT chunk.
+ *
+ * The following table lists, for each transform, the conditions under which it
+ * is expected to do anything. Conditions are defined as follows:
+ *
+ * 1) Color mask bits required - simply a mask to AND with color_type; one of
+ * these must be present for the transform to fire, except that 0 means
+ * 'always'.
+ * 2) Color mask bits which must be absent - another mask - none of these must
+ * be present.
+ * 3) Bit depths - a mask of component bit depths for the transform to fire.
+ * 4) 'read' - the transform works in png_read_png.
+ * 5) 'write' - the transform works in png_write_png.
+ * 6) PNG_INFO_chunk; a mask of the chunks that must be present for the
+ * transform to fire. All must be present - the requirement is that
+ * png_get_valid() & mask == mask, so if mask is 0 there is no requirement.
+ *
+ * The condition refers to the original image state - if multiple transforms are
+ * used together it is possible to cause a transform that wouldn't fire on the
+ * original image to fire.
+ */
+static struct transform_info
+{
+ const char *name;
+ int transform;
+ png_uint_32 valid_chunks;
+# define CHUNK_NONE 0
+# define CHUNK_sBIT PNG_INFO_sBIT
+# define CHUNK_tRNS PNG_INFO_tRNS
+ png_byte color_mask_required;
+ png_byte color_mask_absent;
+# define COLOR_MASK_X 0
+# define COLOR_MASK_P PNG_COLOR_MASK_PALETTE
+# define COLOR_MASK_C PNG_COLOR_MASK_COLOR
+# define COLOR_MASK_A PNG_COLOR_MASK_ALPHA
+# define COLOR_MASK_ALL (PALETTE+COLOR+ALPHA) /* absent = gray, no alpha */
+ png_byte bit_depths;
+# define BD_ALL (1 + 2 + 4 + 8 + 16)
+# define BD_PAL (1 + 2 + 4 + 8)
+# define BD_LOW (1 + 2 + 4)
+# define BD_16 16
+# define BD_TRUE (8+16) /* i.e. true-color depths */
+ png_byte when;
+# define TRANSFORM_R 1
+# define TRANSFORM_W 2
+# define TRANSFORM_RW 3
+ png_byte tested; /* the transform was tested somewhere */
+} transform_info[] =
+{
+ /* List ALL the PNG_TRANSFORM_ macros here. Check for support using the READ
+ * macros; even if the transform is supported on write it cannot be tested
+ * without the read support.
+ */
+# define T(name,chunk,cm_required,cm_absent,bd,when)\
+ { #name, PNG_TRANSFORM_ ## name, CHUNK_ ## chunk,\
+ COLOR_MASK_ ## cm_required, COLOR_MASK_ ## cm_absent, BD_ ## bd,\
+ TRANSFORM_ ## when, 0/*!tested*/ }
+
+#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED
+ T(STRIP_16, NONE, X, X, 16, R),
+ /* drops the bottom 8 bits when bit depth is 16 */
+#endif
+#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
+ T(STRIP_ALPHA, NONE, A, X, ALL, R),
+ /* removes the alpha channel if present */
+#endif
+#ifdef PNG_WRITE_PACK_SUPPORTED
+# define TRANSFORM_RW_PACK TRANSFORM_RW
+#else
+# define TRANSFORM_RW_PACK TRANSFORM_R
+#endif
+#ifdef PNG_READ_PACK_SUPPORTED
+ T(PACKING, NONE, X, X, LOW, RW_PACK),
+ /* unpacks low-bit-depth components into 1 byte per component on read,
+ * reverses this on write.
+ */
+#endif
+#ifdef PNG_WRITE_PACKSWAP_SUPPORTED
+# define TRANSFORM_RW_PACKSWAP TRANSFORM_RW
+#else
+# define TRANSFORM_RW_PACKSWAP TRANSFORM_R
+#endif
+#ifdef PNG_READ_PACKSWAP_SUPPORTED
+ T(PACKSWAP, NONE, X, X, LOW, RW_PACKSWAP),
+ /* reverses the order of low-bit-depth components packed into a byte */
+#endif
+#ifdef PNG_READ_EXPAND_SUPPORTED
+ T(EXPAND, NONE, P, X, ALL, R),
+ /* expands PLTE PNG files to RGB (no tRNS) or RGBA (tRNS) *
+ * Note that the 'EXPAND' transform does lots of different things: */
+ T(EXPAND, NONE, X, C, ALL, R),
+ /* expands grayscale PNG files to RGB, or RGBA */
+ T(EXPAND, tRNS, X, A, ALL, R),
+ /* expands the tRNS chunk in files without alpha */
+#endif
+#ifdef PNG_WRITE_INVERT_SUPPORTED
+# define TRANSFORM_RW_INVERT TRANSFORM_RW
+#else
+# define TRANSFORM_RW_INVERT TRANSFORM_R
+#endif
+#ifdef PNG_READ_INVERT_SUPPORTED
+ T(INVERT_MONO, NONE, X, C, ALL, RW_INVERT),
+ /* converts gray-scale components to 1..0 from 0..1 */
+#endif
+#ifdef PNG_WRITE_SHIFT_SUPPORTED
+# define TRANSFORM_RW_SHIFT TRANSFORM_RW
+#else
+# define TRANSFORM_RW_SHIFT TRANSFORM_R
+#endif
+#ifdef PNG_READ_SHIFT_SUPPORTED
+ T(SHIFT, sBIT, X, X, ALL, RW_SHIFT),
+ /* reduces component values to the original range based on the sBIT chunk,
+ * this is only partially reversible - the low bits are lost and cannot be
+ * recovered on write. In fact write code replicates the bits to generate
+ * new low-order bits.
+ */
+#endif
+#ifdef PNG_WRITE_BGR_SUPPORTED
+# define TRANSFORM_RW_BGR TRANSFORM_RW
+#else
+# define TRANSFORM_RW_BGR TRANSFORM_R
+#endif
+#ifdef PNG_READ_BGR_SUPPORTED
+ T(BGR, NONE, C, P, TRUE, RW_BGR),
+ /* reverses the rgb component values of true-color pixels */
+#endif
+#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED
+# define TRANSFORM_RW_SWAP_ALPHA TRANSFORM_RW
+#else
+# define TRANSFORM_RW_SWAP_ALPHA TRANSFORM_R
+#endif
+#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED
+ T(SWAP_ALPHA, NONE, A, X, TRUE, RW_SWAP_ALPHA),
+ /* swaps the alpha channel of RGBA or GA pixels to the front - ARGB or
+ * AG, on write reverses the process.
+ */
+#endif
+#ifdef PNG_WRITE_SWAP_SUPPORTED
+# define TRANSFORM_RW_SWAP TRANSFORM_RW
+#else
+# define TRANSFORM_RW_SWAP TRANSFORM_R
+#endif
+#ifdef PNG_READ_SWAP_SUPPORTED
+ T(SWAP_ENDIAN, NONE, X, P, 16, RW_SWAP),
+ /* byte-swaps 16-bit component values */
+#endif
+#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED
+# define TRANSFORM_RW_INVERT_ALPHA TRANSFORM_RW
+#else
+# define TRANSFORM_RW_INVERT_ALPHA TRANSFORM_R
+#endif
+#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED
+ T(INVERT_ALPHA, NONE, A, X, TRUE, RW_INVERT_ALPHA),
+ /* converts an alpha channel from 0..1 to 1..0 */
+#endif
+#ifdef PNG_WRITE_FILLER_SUPPORTED
+ T(STRIP_FILLER_BEFORE, NONE, A, P, TRUE, W), /* 'A' for a filler! */
+ /* on write skips a leading filler channel; testing requires data with a
+ * filler channel so this is produced from RGBA or GA images by removing
+ * the 'alpha' flag from the color type in place.
+ */
+ T(STRIP_FILLER_AFTER, NONE, A, P, TRUE, W),
+ /* on write strips a trailing filler channel */
+#endif
+#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
+ T(GRAY_TO_RGB, NONE, X, C, ALL, R),
+ /* expands grayscale images to RGB, also causes the palette part of
+ * 'EXPAND' to happen. Low bit depth grayscale images are expanded to
+ * 8-bits per component and no attempt is made to convert the image to a
+ * palette image. While this transform is partially reversible
+ * png_write_png does not currently support this.
+ */
+ T(GRAY_TO_RGB, NONE, P, X, ALL, R),
+ /* The 'palette' side effect mentioned above; a bit bogus but this is the
+ * way the libpng code works.
+ */
+#endif
+#ifdef PNG_READ_EXPAND_16_SUPPORTED
+ T(EXPAND_16, NONE, X, X, PAL, R),
+ /* expands images to 16-bits per component, as a side effect expands
+ * palette images to RGB and expands the tRNS chunk if present, so it can
+ * modify 16-bit per component images as well:
+ */
+ T(EXPAND_16, tRNS, X, A, 16, R),
+ /* side effect of EXPAND_16 - expands the tRNS chunk in an RGB or G 16-bit
+ * image.
+ */
+#endif
+#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
+ T(SCALE_16, NONE, X, X, 16, R)
+ /* scales 16-bit components to 8-bits. */
+#endif
+
+#undef T
+};
+
+#define ARRAY_SIZE(a) ((sizeof a)/(sizeof a[0]))
+#define TTABLE_SIZE ARRAY_SIZE(transform_info)
+
+/* Some combinations of options that should be reversible are not; these cases
+ * are bugs.
+ */
+static int known_bad_combos[][2] =
+{
+ /* problem, antidote */
+ { PNG_TRANSFORM_SHIFT | PNG_TRANSFORM_INVERT_ALPHA, 0/*antidote*/ }
+};
+
+static int
+is_combo(int transforms)
+{
+ return transforms & (transforms-1); /* non-zero if more than one set bit */
+}
+
+static int
+first_transform(int transforms)
+{
+ return transforms & -transforms; /* lowest set bit */
+}
+
+static int
+is_bad_combo(int transforms)
+{
+ unsigned int i;
+
+ for (i=0; i<ARRAY_SIZE(known_bad_combos); ++i)
+ {
+ int combo = known_bad_combos[i][0];
+
+ if ((combo & transforms) == combo &&
+ (transforms & known_bad_combos[i][1]) == 0)
+ return 1;
+ }
+
+ return 0; /* combo is ok */
+}
+
+static const char *
+transform_name(int t)
+ /* The name, if 't' has multiple bits set the name of the lowest set bit is
+ * returned.
+ */
+{
+ unsigned int i;
+
+ t &= -t; /* first set bit */
+
+ for (i=0; i<TTABLE_SIZE; ++i)
+ {
+ if ((transform_info[i].transform & t) != 0)
+ return transform_info[i].name;
+ }
+
+ return "invalid transform";
+}
+
+/* Variables calculated by validate_T below and used to record all the supported
+ * transforms. Need (unsigned int) here because of the places where these
+ * values are used (unsigned compares in the 'exhaustive' iterator.)
+ */
+static unsigned int read_transforms, write_transforms, rw_transforms;
+
+static void
+validate_T(void)
+ /* Validate the above table - this just builds the above values */
+{
+ unsigned int i;
+
+ for (i=0; i<TTABLE_SIZE; ++i)
+ {
+ if (transform_info[i].when & TRANSFORM_R)
+ read_transforms |= transform_info[i].transform;
+
+ if (transform_info[i].when & TRANSFORM_W)
+ write_transforms |= transform_info[i].transform;
+ }
+
+ /* Reversible transforms are those which are supported on both read and
+ * write.
+ */
+ rw_transforms = read_transforms & write_transforms;
+}
+
+/* FILE DATA HANDLING
+ * The original file is cached in memory. During write the output file is
+ * written to memory.
+ *
+ * In both cases the file data is held in a linked list of buffers - not all
+ * of these are in use at any time.
+ */
+struct buffer_list
+{
+ struct buffer_list *next; /* next buffer in list */
+ png_byte buffer[1024]; /* the actual buffer */
+};
+
+struct buffer
+{
+ struct buffer_list *last; /* last buffer in use */
+ size_t end_count; /* bytes in the last buffer */
+ struct buffer_list *current; /* current buffer being read */
+ size_t read_count; /* count of bytes read from current */
+ struct buffer_list first; /* the very first buffer */
+};
+
+static void
+buffer_init(struct buffer *buffer)
+ /* Call this only once for a given buffer */
+{
+ buffer->first.next = NULL;
+ buffer->last = NULL;
+ buffer->current = NULL;
+}
+
+#ifdef PNG_WRITE_SUPPORTED
+static void
+buffer_start_write(struct buffer *buffer)
+{
+ buffer->last = &buffer->first;
+ buffer->end_count = 0;
+ buffer->current = NULL;
+}
+#endif
+
+static void
+buffer_start_read(struct buffer *buffer)
+{
+ buffer->current = &buffer->first;
+ buffer->read_count = 0;
+}
+
+#ifdef ENOMEM /* required by POSIX 1003.1 */
+# define MEMORY ENOMEM
+#else
+# define MEMORY ERANGE /* required by ANSI-C */
+#endif
+static struct buffer *
+get_buffer(png_structp pp)
+ /* Used from libpng callbacks to get the current buffer */
+{
+ return (struct buffer*)png_get_io_ptr(pp);
+}
+
+#define NEW(type) ((type *)malloc(sizeof (type)))
+
+static struct buffer_list *
+buffer_extend(struct buffer_list *current)
+{
+ struct buffer_list *add;
+
+ assert(current->next == NULL);
+
+ add = NEW(struct buffer_list);
+ if (add == NULL)
+ return NULL;
+
+ add->next = NULL;
+ current->next = add;
+
+ return add;
+}
+
+/* Load a buffer from a file; does the equivalent of buffer_start_write. On a
+ * read error returns an errno value, else returns 0.
+ */
+static int
+buffer_from_file(struct buffer *buffer, FILE *fp)
+{
+ struct buffer_list *last = &buffer->first;
+ size_t count = 0;
+
+ for (;;)
+ {
+ size_t r = fread(last->buffer+count, 1/*size*/,
+ (sizeof last->buffer)-count, fp);
+
+ if (r > 0)
+ {
+ count += r;
+
+ if (count >= sizeof last->buffer)
+ {
+ assert(count == sizeof last->buffer);
+ count = 0;
+
+ if (last->next == NULL)
+ {
+ last = buffer_extend(last);
+ if (last == NULL)
+ return MEMORY;
+ }
+
+ else
+ last = last->next;
+ }
+ }
+
+ else /* fread failed - probably end of file */
+ {
+ if (feof(fp))
+ {
+ buffer->last = last;
+ buffer->end_count = count;
+ return 0; /* no error */
+ }
+
+ /* Some kind of funky error; errno should be non-zero */
+ return errno == 0 ? ERANGE : errno;
+ }
+ }
+}
+
+/* This structure is used to control the test of a single file. */
+typedef enum
+{
+ VERBOSE, /* switches on all messages */
+ INFORMATION,
+ WARNINGS, /* switches on warnings */
+ LIBPNG_WARNING,
+ APP_WARNING,
+ ERRORS, /* just errors */
+ APP_FAIL, /* continuable error - no need to longjmp */
+ LIBPNG_ERROR, /* this and higher cause a longjmp */
+ LIBPNG_BUG, /* erroneous behavior in libpng */
+ APP_ERROR, /* such as out-of-memory in a callback */
+ QUIET, /* no normal messages */
+ USER_ERROR, /* such as file-not-found */
+ INTERNAL_ERROR
+} error_level;
+#define LEVEL_MASK 0xf /* where the level is in 'options' */
+
+#define EXHAUSTIVE 0x010 /* Test all combinations of active options */
+#define STRICT 0x020 /* Fail on warnings as well as errors */
+#define LOG 0x040 /* Log pass/fail to stdout */
+#define CONTINUE 0x080 /* Continue on APP_FAIL errors */
+#define SKIP_BUGS 0x100 /* Skip over known bugs */
+#define LOG_SKIPPED 0x200 /* Log skipped bugs */
+#define FIND_BAD_COMBOS 0x400 /* Attempt to deduce bad combos */
+
+/* Result masks apply to the result bits in the 'results' field below; these
+ * bits are simple 1U<<error_level. A pass requires either nothing worse than
+ * warnings (--relaxes) or nothing worse than information (--strict)
+ */
+#define RESULT_STRICT(r) (((r) & ~((1U<<WARNINGS)-1)) == 0)
+#define RESULT_RELAXED(r) (((r) & ~((1U<<ERRORS)-1)) == 0)
+
+struct display
+{
+ jmp_buf error_return; /* Where to go to on error */
+
+ const char *filename; /* The name of the original file */
+ const char *operation; /* Operation being performed */
+ int transforms; /* Transform used in operation */
+ png_uint_32 options; /* See display_log below */
+ png_uint_32 results; /* A mask of errors seen */
+
+
+ png_structp original_pp; /* used on the original read */
+ png_infop original_ip; /* set by the original read */
+
+ png_size_t original_rowbytes; /* of the original rows: */
+ png_bytepp original_rows; /* from the original read */
+
+ /* Original chunks valid */
+ png_uint_32 chunks;
+
+ /* Original IHDR information */
+ png_uint_32 width;
+ png_uint_32 height;
+ int bit_depth;
+ int color_type;
+ int interlace_method;
+ int compression_method;
+ int filter_method;
+
+ /* Derived information for the original image. */
+ int active_transforms; /* transforms that do something on read */
+ int ignored_transforms; /* transforms that should do nothing */
+
+ /* Used on a read, both the original read and when validating a written
+ * image.
+ */
+ png_structp read_pp;
+ png_infop read_ip;
+
+# ifdef PNG_WRITE_SUPPORTED
+ /* Used to write a new image (the original info_ptr is used) */
+ png_structp write_pp;
+ struct buffer written_file; /* where the file gets written */
+# endif
+
+ struct buffer original_file; /* Data read from the original file */
+};
+
+static void
+display_init(struct display *dp)
+ /* Call this only once right at the start to initialize the control
+ * structure, the (struct buffer) lists are maintained across calls - the
+ * memory is not freed.
+ */
+{
+ memset(dp, 0, sizeof *dp);
+ dp->options = WARNINGS; /* default to !verbose, !quiet */
+ dp->filename = NULL;
+ dp->operation = NULL;
+ dp->original_pp = NULL;
+ dp->original_ip = NULL;
+ dp->original_rows = NULL;
+ dp->read_pp = NULL;
+ dp->read_ip = NULL;
+ buffer_init(&dp->original_file);
+
+# ifdef PNG_WRITE_SUPPORTED
+ dp->write_pp = NULL;
+ buffer_init(&dp->written_file);
+# endif
+}
+
+static void
+display_clean_read(struct display *dp)
+{
+ if (dp->read_pp != NULL)
+ png_destroy_read_struct(&dp->read_pp, &dp->read_ip, NULL);
+}
+
+#ifdef PNG_WRITE_SUPPORTED
+static void
+display_clean_write(struct display *dp)
+{
+ if (dp->write_pp != NULL)
+ png_destroy_write_struct(&dp->write_pp, NULL);
+}
+#endif
+
+static void
+display_clean(struct display *dp)
+{
+# ifdef PNG_WRITE_SUPPORTED
+ display_clean_write(dp);
+# endif
+ display_clean_read(dp);
+
+ dp->original_rowbytes = 0;
+ dp->original_rows = NULL;
+ dp->chunks = 0;
+
+ png_destroy_read_struct(&dp->original_pp, &dp->original_ip, NULL);
+ /* leave the filename for error detection */
+ dp->results = 0; /* reset for next time */
+}
+
+static struct display *
+get_dp(png_structp pp)
+ /* The display pointer is always stored in the png_struct error pointer */
+{
+ struct display *dp = (struct display*)png_get_error_ptr(pp);
+
+ if (dp == NULL)
+ {
+ fprintf(stderr, "pngimage: internal error (no display)\n");
+ exit(99); /* prevents a crash */
+ }
+
+ return dp;
+}
+
+/* error handling */
+#ifdef __GNUC__
+# define VGATTR __attribute__((__format__ (__printf__,3,4)))
+ /* Required to quiet GNUC warnings when the compiler sees a stdarg function
+ * that calls one of the stdio v APIs.
+ */
+#else
+# define VGATTR
+#endif
+static void VGATTR
+display_log(struct display *dp, error_level level, const char *fmt, ...)
+ /* 'level' is as above, fmt is a stdio style format string. This routine
+ * does not return if level is above LIBPNG_WARNING
+ */
+{
+ dp->results |= 1U << level;
+
+ if (level > (error_level)(dp->options & LEVEL_MASK))
+ {
+ const char *lp;
+ va_list ap;
+
+ switch (level)
+ {
+ case INFORMATION: lp = "information"; break;
+ case LIBPNG_WARNING: lp = "warning(libpng)"; break;
+ case APP_WARNING: lp = "warning(pngimage)"; break;
+ case APP_FAIL: lp = "error(continuable)"; break;
+ case LIBPNG_ERROR: lp = "error(libpng)"; break;
+ case LIBPNG_BUG: lp = "bug(libpng)"; break;
+ case APP_ERROR: lp = "error(pngimage)"; break;
+ case USER_ERROR: lp = "error(user)"; break;
+
+ case INTERNAL_ERROR: /* anything unexpected is an internal error: */
+ case VERBOSE: case WARNINGS: case ERRORS: case QUIET:
+ default: lp = "bug(pngimage)"; break;
+ }
+
+ fprintf(stderr, "%s: %s: %s",
+ dp->filename != NULL ? dp->filename : "<stdin>", lp, dp->operation);
+
+ if (dp->transforms != 0)
+ {
+ int tr = dp->transforms;
+
+ if (is_combo(tr))
+ fprintf(stderr, "(0x%x)", tr);
+
+ else
+ fprintf(stderr, "(%s)", transform_name(tr));
+ }
+
+ fprintf(stderr, ": ");
+
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+
+ fputc('\n', stderr);
+ }
+ /* else do not output any message */
+
+ /* Errors cause this routine to exit to the fail code */
+ if (level > APP_FAIL || (level > ERRORS && !(dp->options & CONTINUE)))
+ longjmp(dp->error_return, level);
+}
+
+/* error handler callbacks for libpng */
+static void PNGCBAPI
+display_warning(png_structp pp, png_const_charp warning)
+{
+ display_log(get_dp(pp), LIBPNG_WARNING, "%s", warning);
+}
+
+static void PNGCBAPI
+display_error(png_structp pp, png_const_charp error)
+{
+ struct display *dp = get_dp(pp);
+
+ display_log(dp, LIBPNG_ERROR, "%s", error);
+}
+
+static void
+display_cache_file(struct display *dp, const char *filename)
+ /* Does the initial cache of the file. */
+{
+ FILE *fp;
+ int ret;
+
+ dp->filename = filename;
+
+ if (filename != NULL)
+ {
+ fp = fopen(filename, "rb");
+ if (fp == NULL)
+ display_log(dp, USER_ERROR, "open failed: %s", strerror(errno));
+ }
+
+ else
+ fp = stdin;
+
+ ret = buffer_from_file(&dp->original_file, fp);
+
+ fclose(fp);
+
+ if (ret != 0)
+ display_log(dp, APP_ERROR, "read failed: %s", strerror(ret));
+}
+
+static void
+buffer_read(struct display *dp, struct buffer *bp, png_bytep data,
+ png_size_t size)
+{
+ struct buffer_list *last = bp->current;
+ size_t read_count = bp->read_count;
+
+ while (size > 0)
+ {
+ size_t avail;
+
+ if (last == NULL ||
+ (last == bp->last && read_count >= bp->end_count))
+ {
+ display_log(dp, USER_ERROR, "file truncated (%lu bytes)",
+ (unsigned long)size);
+ /*NOTREACHED*/
+ break;
+ }
+
+ else if (read_count >= sizeof last->buffer)
+ {
+ /* Move to the next buffer: */
+ last = last->next;
+ read_count = 0;
+ bp->current = last; /* Avoid update outside the loop */
+
+ /* And do a sanity check (the EOF case is caught above) */
+ if (last == NULL)
+ {
+ display_log(dp, INTERNAL_ERROR, "damaged buffer list");
+ /*NOTREACHED*/
+ break;
+ }
+ }
+
+ avail = (sizeof last->buffer) - read_count;
+ if (avail > size)
+ avail = size;
+
+ memcpy(data, last->buffer + read_count, avail);
+ read_count += avail;
+ size -= avail;
+ data += avail;
+ }
+
+ bp->read_count = read_count;
+}
+
+static void PNGCBAPI
+read_function(png_structp pp, png_bytep data, png_size_t size)
+{
+ buffer_read(get_dp(pp), get_buffer(pp), data, size);
+}
+
+static void
+read_png(struct display *dp, struct buffer *bp, const char *operation,
+ int transforms)
+{
+ png_structp pp;
+ png_infop ip;
+
+ /* This cleans out any previous read and sets operation and transforms to
+ * empty.
+ */
+ display_clean_read(dp);
+
+ if (operation != NULL) /* else this is a verify and do not overwrite info */
+ {
+ dp->operation = operation;
+ dp->transforms = transforms;
+ }
+
+ dp->read_pp = pp = png_create_read_struct(PNG_LIBPNG_VER_STRING, dp,
+ display_error, display_warning);
+ if (pp == NULL)
+ display_log(dp, LIBPNG_ERROR, "failed to create read struct");
+
+ /* The png_read_png API requires us to make the info struct, but it does the
+ * call to png_read_info.
+ */
+ dp->read_ip = ip = png_create_info_struct(pp);
+ if (ip == NULL)
+ display_log(dp, LIBPNG_ERROR, "failed to create info struct");
+
+# ifdef PNG_SET_USER_LIMITS_SUPPORTED
+ /* Remove the user limits, if any */
+ png_set_user_limits(pp, 0x7fffffff, 0x7fffffff);
+# endif
+
+ /* Set the IO handling */
+ buffer_start_read(bp);
+ png_set_read_fn(pp, bp, read_function);
+
+ png_read_png(pp, ip, transforms, NULL/*params*/);
+
+#if 0 /* crazy debugging */
+ {
+ png_bytep pr = png_get_rows(pp, ip)[0];
+ size_t rb = png_get_rowbytes(pp, ip);
+ size_t cb;
+ char c = ' ';
+
+ fprintf(stderr, "%.4x %2d (%3lu bytes):", transforms, png_get_bit_depth(pp,ip), (unsigned long)rb);
+
+ for (cb=0; cb<rb; ++cb)
+ fputc(c, stderr), fprintf(stderr, "%.2x", pr[cb]), c='.';
+
+ fputc('\n', stderr);
+ }
+#endif
+}
+
+static void
+update_display(struct display *dp)
+ /* called once after the first read to update all the info, original_pp and
+ * original_ip must have been filled in.
+ */
+{
+ png_structp pp;
+ png_infop ip;
+
+ /* Now perform the initial read with a 0 tranform. */
+ read_png(dp, &dp->original_file, "original read", 0/*no transform*/);
+
+ /* Move the result to the 'original' fields */
+ dp->original_pp = pp = dp->read_pp, dp->read_pp = NULL;
+ dp->original_ip = ip = dp->read_ip, dp->read_ip = NULL;
+
+ dp->original_rowbytes = png_get_rowbytes(pp, ip);
+ if (dp->original_rowbytes == 0)
+ display_log(dp, LIBPNG_BUG, "png_get_rowbytes returned 0");
+
+ dp->chunks = png_get_valid(pp, ip, 0xffffffff);
+ if ((dp->chunks & PNG_INFO_IDAT) == 0) /* set by png_read_png */
+ display_log(dp, LIBPNG_BUG, "png_read_png did not set IDAT flag");
+
+ dp->original_rows = png_get_rows(pp, ip);
+ if (dp->original_rows == NULL)
+ display_log(dp, LIBPNG_BUG, "png_read_png did not create row buffers");
+
+ if (!png_get_IHDR(pp, ip,
+ &dp->width, &dp->height, &dp->bit_depth, &dp->color_type,
+ &dp->interlace_method, &dp->compression_method, &dp->filter_method))
+ display_log(dp, LIBPNG_BUG, "png_get_IHDR failed");
+
+ /* 'active' transforms are discovered based on the original image format;
+ * running one active transform can activate others. At present the code
+ * does not attempt to determine the closure.
+ */
+ {
+ png_uint_32 chunks = dp->chunks;
+ int active = 0, inactive = 0;
+ int ct = dp->color_type;
+ int bd = dp->bit_depth;
+ unsigned int i;
+
+ for (i=0; i<TTABLE_SIZE; ++i)
+ {
+ int transform = transform_info[i].transform;
+
+ if ((transform_info[i].valid_chunks == 0 ||
+ (transform_info[i].valid_chunks & chunks) != 0) &&
+ (transform_info[i].color_mask_required & ct) ==
+ transform_info[i].color_mask_required &&
+ (transform_info[i].color_mask_absent & ct) == 0 &&
+ (transform_info[i].bit_depths & bd) != 0 &&
+ (transform_info[i].when & TRANSFORM_R) != 0)
+ active |= transform;
+
+ else if ((transform_info[i].when & TRANSFORM_R) != 0)
+ inactive |= transform;
+ }
+
+ /* Some transforms appear multiple times in the table; the 'active' status
+ * is the logical OR of these and the inactive status must be adjusted to
+ * take this into account.
+ */
+ inactive &= ~active;
+
+ dp->active_transforms = active;
+ dp->ignored_transforms = inactive; /* excluding write-only transforms */
+
+ if (active == 0)
+ display_log(dp, INTERNAL_ERROR, "bad transform table");
+ }
+}
+
+static int
+compare_read(struct display *dp, int applied_transforms)
+{
+ /* Compare the png_info from read_ip with original_info */
+ size_t rowbytes;
+ png_uint_32 width, height;
+ int bit_depth, color_type;
+ int interlace_method, compression_method, filter_method;
+ const char *e = NULL;
+
+ png_get_IHDR(dp->read_pp, dp->read_ip, &width, &height, &bit_depth,
+ &color_type, &interlace_method, &compression_method, &filter_method);
+
+# define C(item) if (item != dp->item) \
+ display_log(dp, APP_WARNING, "IHDR " #item "(%lu) changed to %lu",\
+ (unsigned long)dp->item, (unsigned long)item), e = #item
+
+ /* The IHDR should be identical: */
+ C(width);
+ C(height);
+ C(bit_depth);
+ C(color_type);
+ C(interlace_method);
+ C(compression_method);
+ C(filter_method);
+
+ /* 'e' remains set to the name of the last thing changed: */
+ if (e)
+ display_log(dp, APP_ERROR, "IHDR changed (%s)", e);
+
+ /* All the chunks from the original PNG should be preserved in the output PNG
+ * because the PNG format has not been changed.
+ */
+ {
+ unsigned long chunks =
+ png_get_valid(dp->read_pp, dp->read_ip, 0xffffffff);
+
+ if (chunks != dp->chunks)
+ display_log(dp, APP_FAIL, "PNG chunks changed from 0x%lx to 0x%lx",
+ (unsigned long)dp->chunks, chunks);
+ }
+
+ /* rowbytes should be the same */
+ rowbytes = png_get_rowbytes(dp->read_pp, dp->read_ip);
+
+ /* NOTE: on 64-bit systems this may trash the top bits of rowbytes,
+ * which could lead to weird error messages.
+ */
+ if (rowbytes != dp->original_rowbytes)
+ display_log(dp, APP_ERROR, "PNG rowbytes changed from %lu to %lu",
+ (unsigned long)dp->original_rowbytes, (unsigned long)rowbytes);
+
+ /* The rows should be the same too, unless the applied transforms includes
+ * the shift transform, in which case low bits may have been lost.
+ */
+ {
+ png_bytepp rows = png_get_rows(dp->read_pp, dp->read_ip);
+ unsigned int mask; /* mask (if not zero) for the final byte */
+
+ if (bit_depth < 8)
+ {
+ /* Need the stray bits at the end, this depends only on the low bits
+ * of the image width; overflow does not matter. If the width is an
+ * exact multiple of 8 bits this gives a mask of 0, not 0xff.
+ */
+ mask = 0xff & (0xff00 >> ((bit_depth * width) & 7));
+ }
+
+ else
+ mask = 0;
+
+ if (rows == NULL)
+ display_log(dp, LIBPNG_BUG, "png_get_rows returned NULL");
+
+ if ((applied_transforms & PNG_TRANSFORM_SHIFT) == 0 ||
+ (dp->active_transforms & PNG_TRANSFORM_SHIFT) == 0 ||
+ color_type == PNG_COLOR_TYPE_PALETTE)
+ {
+ unsigned long y;
+
+ for (y=0; y<height; ++y)
+ {
+ png_bytep row = rows[y];
+ png_bytep orig = dp->original_rows[y];
+
+ if (memcmp(row, orig, rowbytes-(mask != 0)) != 0 || (mask != 0 &&
+ ((row[rowbytes-1] & mask) != (orig[rowbytes-1] & mask))))
+ {
+ size_t x;
+
+ /* Find the first error */
+ for (x=0; x<rowbytes-1; ++x) if (row[x] != orig[x])
+ break;
+
+ display_log(dp, APP_FAIL,
+ "byte(%lu,%lu) changed 0x%.2x -> 0x%.2x",
+ (unsigned long)x, (unsigned long)y, orig[x], row[x]);
+ return 0; /* don't keep reporting failed rows on 'continue' */
+ }
+ }
+ }
+
+ else
+ {
+ unsigned long y;
+ int bpp; /* bits-per-pixel then bytes-per-pixel */
+ /* components are up to 8 bytes in size */
+ png_byte sig_bits[8];
+ png_color_8p sBIT;
+
+ if (png_get_sBIT(dp->read_pp, dp->read_ip, &sBIT) != PNG_INFO_sBIT)
+ display_log(dp, INTERNAL_ERROR,
+ "active shift transform but no sBIT in file");
+
+ switch (color_type)
+ {
+ case PNG_COLOR_TYPE_GRAY:
+ sig_bits[0] = sBIT->gray;
+ bpp = bit_depth;
+ break;
+
+ case PNG_COLOR_TYPE_GA:
+ sig_bits[0] = sBIT->gray;
+ sig_bits[1] = sBIT->alpha;
+ bpp = 2 * bit_depth;
+ break;
+
+ case PNG_COLOR_TYPE_RGB:
+ sig_bits[0] = sBIT->red;
+ sig_bits[1] = sBIT->green;
+ sig_bits[2] = sBIT->blue;
+ bpp = 3 * bit_depth;
+ break;
+
+ case PNG_COLOR_TYPE_RGBA:
+ sig_bits[0] = sBIT->red;
+ sig_bits[1] = sBIT->green;
+ sig_bits[2] = sBIT->blue;
+ sig_bits[3] = sBIT->alpha;
+ bpp = 4 * bit_depth;
+ break;
+
+ default:
+ display_log(dp, LIBPNG_ERROR, "invalid colour type %d",
+ color_type);
+ /*NOTREACHED*/
+ bpp = 0;
+ break;
+ }
+
+ {
+ int b;
+
+ for (b=0; 8*b<bpp; ++b)
+ {
+ /* libpng should catch this; if not there is a security issue
+ * because an app (like this one) may overflow an array. In fact
+ * libpng doesn't catch this at present.
+ */
+ if (sig_bits[b] == 0 || sig_bits[b] > bit_depth/*!palette*/)
+ display_log(dp, LIBPNG_BUG,
+ "invalid sBIT[%u] value %d returned for PNG bit depth %d",
+ b, sig_bits[b], bit_depth);
+ }
+ }
+
+ if (bpp < 8 && bpp != bit_depth)
+ {
+ /* sanity check; this is a grayscale PNG; something is wrong in the
+ * code above.
+ */
+ display_log(dp, INTERNAL_ERROR, "invalid bpp %u for bit_depth %u",
+ bpp, bit_depth);
+ }
+
+ switch (bit_depth)
+ {
+ int b;
+
+ case 16: /* Two bytes per component, bit-endian */
+ for (b = (bpp >> 4); b > 0; )
+ {
+ unsigned int sig = (unsigned int)(0xffff0000 >> sig_bits[b]);
+
+ sig_bits[2*b+1] = (png_byte)sig;
+ sig_bits[2*b+0] = (png_byte)(sig >> 8); /* big-endian */
+ }
+ break;
+
+ case 8: /* One byte per component */
+ for (b=0; b*8 < bpp; ++b)
+ sig_bits[b] = (png_byte)(0xff00 >> sig_bits[b]);
+ break;
+
+ case 1: /* allowed, but dumb */
+ /* Value is 1 */
+ sig_bits[0] = 0xff;
+ break;
+
+ case 2: /* Replicate 4 times */
+ /* Value is 1 or 2 */
+ b = 0x3 & ((0x3<<2) >> sig_bits[0]);
+ b |= b << 2;
+ b |= b << 4;
+ sig_bits[0] = (png_byte)b;
+ break;
+
+ case 4: /* Relicate twice */
+ /* Value is 1, 2, 3 or 4 */
+ b = 0xf & ((0xf << 4) >> sig_bits[0]);
+ b |= b << 4;
+ sig_bits[0] = (png_byte)b;
+ break;
+
+ default:
+ display_log(dp, LIBPNG_BUG, "invalid bit depth %d", bit_depth);
+ break;
+ }
+
+ /* Convert bpp to bytes; this gives '1' for low-bit depth grayscale,
+ * where there are multiple pixels per byte.
+ */
+ bpp = (bpp+7) >> 3;
+
+ /* The mask can be combined with sig_bits[0] */
+ if (mask != 0)
+ {
+ mask &= sig_bits[0];
+
+ if (bpp != 1 || mask == 0)
+ display_log(dp, INTERNAL_ERROR, "mask calculation error %u, %u",
+ bpp, mask);
+ }
+
+ for (y=0; y<height; ++y)
+ {
+ png_bytep row = rows[y];
+ png_bytep orig = dp->original_rows[y];
+ unsigned long x;
+
+ for (x=0; x<(width-(mask!=0)); ++x)
+ {
+ int b;
+
+ for (b=0; b<bpp; ++b)
+ {
+ if ((*row++ & sig_bits[b]) != (*orig++ & sig_bits[b]))
+ {
+ display_log(dp, APP_FAIL,
+ "significant bits at (%lu[%u],%lu) changed %.2x->%.2x",
+ x, b, y, orig[-1], row[-1]);
+ return 0;
+ }
+ }
+ }
+
+ if (mask != 0 && (*row & mask) != (*orig & mask))
+ {
+ display_log(dp, APP_FAIL,
+ "significant bits at (%lu[end],%lu) changed", x, y);
+ return 0;
+ }
+ } /* for y */
+ }
+ }
+
+ return 1; /* compare succeeded */
+}
+
+#ifdef PNG_WRITE_SUPPORTED
+static void
+buffer_write(struct display *dp, struct buffer *buffer, png_bytep data,
+ png_size_t size)
+ /* Generic write function used both from the write callback provided to
+ * libpng and from the generic read code.
+ */
+{
+ /* Write the data into the buffer, adding buffers as required */
+ struct buffer_list *last = buffer->last;
+ size_t end_count = buffer->end_count;
+
+ while (size > 0)
+ {
+ size_t avail;
+
+ if (end_count >= sizeof last->buffer)
+ {
+ if (last->next == NULL)
+ {
+ last = buffer_extend(last);
+
+ if (last == NULL)
+ display_log(dp, APP_ERROR, "out of memory saving file");
+ }
+
+ else
+ last = last->next;
+
+ buffer->last = last; /* avoid the need to rewrite every time */
+ end_count = 0;
+ }
+
+ avail = (sizeof last->buffer) - end_count;
+ if (avail > size)
+ avail = size;
+
+ memcpy(last->buffer + end_count, data, avail);
+ end_count += avail;
+ size -= avail;
+ data += avail;
+ }
+
+ buffer->end_count = end_count;
+}
+
+static void PNGCBAPI
+write_function(png_structp pp, png_bytep data, png_size_t size)
+{
+ buffer_write(get_dp(pp), get_buffer(pp), data, size);
+}
+
+static void
+write_png(struct display *dp, png_infop ip, int transforms)
+{
+ display_clean_write(dp); /* safety */
+
+ buffer_start_write(&dp->written_file);
+ dp->operation = "write";
+ dp->transforms = transforms;
+
+ dp->write_pp = png_create_write_struct(PNG_LIBPNG_VER_STRING, dp,
+ display_error, display_warning);
+
+ if (dp->write_pp == NULL)
+ display_log(dp, APP_ERROR, "failed to create write png_struct");
+
+ png_set_write_fn(dp->write_pp, &dp->written_file, write_function,
+ NULL/*flush*/);
+
+# ifdef PNG_SET_USER_LIMITS_SUPPORTED
+ /* Remove the user limits, if any */
+ png_set_user_limits(dp->write_pp, 0x7fffffff, 0x7fffffff);
+# endif
+
+ /* Certain transforms require the png_info to be zapped to allow the
+ * transform to work correctly.
+ */
+ if (transforms & (PNG_TRANSFORM_PACKING|
+ PNG_TRANSFORM_STRIP_FILLER|
+ PNG_TRANSFORM_STRIP_FILLER_BEFORE))
+ {
+ int ct = dp->color_type;
+
+ if (transforms & (PNG_TRANSFORM_STRIP_FILLER|
+ PNG_TRANSFORM_STRIP_FILLER_BEFORE))
+ ct &= ~PNG_COLOR_MASK_ALPHA;
+
+ png_set_IHDR(dp->write_pp, ip, dp->width, dp->height, dp->bit_depth, ct,
+ dp->interlace_method, dp->compression_method, dp->filter_method);
+ }
+
+ png_write_png(dp->write_pp, ip, transforms, NULL/*params*/);
+
+ /* Clean it on the way out - if control returns to the caller then the
+ * written_file contains the required data.
+ */
+ display_clean_write(dp);
+}
+#endif /* WRITE_SUPPORTED */
+
+static int
+skip_transform(struct display *dp, int tr)
+ /* Helper to test for a bad combo and log it if it is skipped */
+{
+ if ((dp->options & SKIP_BUGS) != 0 && is_bad_combo(tr))
+ {
+ /* Log this to stdout if logging is on, otherwise just do an information
+ * display_log.
+ */
+ if ((dp->options & LOG_SKIPPED) != 0)
+ {
+ printf("SKIP: %s transforms ", dp->filename);
+
+ while (tr != 0)
+ {
+ int next = first_transform(tr);
+ tr &= ~next;
+
+ printf("%s", transform_name(next));
+ if (tr != 0)
+ putchar('+');
+ }
+
+ putchar('\n');
+ }
+
+ else
+ display_log(dp, INFORMATION, "%s: skipped known bad combo 0x%x",
+ dp->filename, tr);
+
+ return 1; /* skip */
+ }
+
+ return 0; /* don't skip */
+}
+
+static void
+test_one_file(struct display *dp, const char *filename)
+{
+ /* First cache the file and update the display original file
+ * information for the new file.
+ */
+ dp->operation = "cache file";
+ dp->transforms = 0;
+ display_cache_file(dp, filename);
+ update_display(dp);
+
+ /* First test: if there are options that should be ignored for this file
+ * verify that they really are ignored.
+ */
+ if (dp->ignored_transforms != 0)
+ {
+ read_png(dp, &dp->original_file, "ignored transforms",
+ dp->ignored_transforms);
+
+ /* The result should be identical to the original_rows */
+ if (!compare_read(dp, 0/*transforms applied*/))
+ return; /* no point testing more */
+ }
+
+#ifdef PNG_WRITE_SUPPORTED
+ /* Second test: write the original PNG data out to a new file (to test the
+ * write side) then read the result back in and make sure that it hasn't
+ * changed.
+ */
+ dp->operation = "write";
+ write_png(dp, dp->original_ip, 0/*transforms*/);
+ read_png(dp, &dp->written_file, NULL, 0/*transforms*/);
+ if (!compare_read(dp, 0/*transforms applied*/))
+ return;
+#endif
+
+ /* Third test: the active options. Test each in turn, or, with the
+ * EXHAUSTIVE option, test all possible combinations.
+ */
+ {
+ /* Use unsigned int here because the code below to increment through all
+ * the possibilities exhaustively has to use a compare and that must be
+ * unsigned, because some transforms are negative on a 16-bit system.
+ */
+ unsigned int active = dp->active_transforms;
+ const int exhaustive = (dp->options & EXHAUSTIVE) != 0;
+ unsigned int current = first_transform(active);
+ unsigned int bad_transforms = 0;
+ unsigned int bad_combo = ~0U; /* bitwise AND of failing transforms */
+ unsigned int bad_combo_list = 0; /* bitwise OR of failures */
+
+ for (;;)
+ {
+ read_png(dp, &dp->original_file, "active transforms", current);
+
+ /* If this involved any irreversible transformations then if we write
+ * it out with just the reversible transformations and read it in again
+ * with the same transforms we should get the same thing. At present
+ * this isn't done - it just seems like a waste of time and it would
+ * require two sets of read png_struct/png_info.
+ *
+ * If there were no irreversible transformations then if we write it
+ * out and read it back in again (without the reversible transforms)
+ * we should get back to the place where we started.
+ */
+#ifdef PNG_WRITE_SUPPORTED
+ if ((current & write_transforms) == current)
+ {
+ /* All transforms reversible: write the PNG with the transformations
+ * reversed, then read it back in with no transformations. The
+ * result should be the same as the original apart from the loss of
+ * low order bits because of the SHIFT/sBIT transform.
+ */
+ dp->operation = "reversible transforms";
+ write_png(dp, dp->read_ip, current);
+
+ /* And if this is read back in, because all the transformations were
+ * reversible, the result should be the same.
+ */
+ read_png(dp, &dp->written_file, NULL, 0);
+ if (!compare_read(dp, current/*for the SHIFT/sBIT transform*/))
+ {
+ /* This set of transforms failed. If a single bit is set - if
+ * there is just one transform - don't include this in further
+ * 'exhaustive' tests. Notice that each transform is tested on
+ * its own before testing combos in the exhaustive case.
+ */
+ if (is_combo(current))
+ {
+ bad_combo &= current;
+ bad_combo_list |= current;
+ }
+
+ else
+ bad_transforms |= current;
+ }
+ }
+#endif
+
+ /* Now move to the next transform */
+ if (exhaustive) /* all combinations */
+ {
+ unsigned int next = current;
+
+ do
+ {
+ if (next == read_transforms) /* Everything tested */
+ goto combo;
+
+ ++next;
+ } /* skip known bad combos if the relevant option is set; skip
+ * combos involving known bad single transforms in all cases.
+ */
+ while ( (next & read_transforms) <= current
+ || (next & active) == 0 /* skip cases that do nothing */
+ || (next & bad_transforms) != 0
+ || skip_transform(dp, next));
+
+ assert((next & read_transforms) == next);
+ current = next;
+ }
+
+ else /* one at a time */
+ {
+ active &= ~current;
+
+ if (active == 0)
+ goto combo;
+
+ current = first_transform(active);
+ }
+ }
+
+combo:
+ if (dp->options & FIND_BAD_COMBOS)
+ {
+ /* bad_combos identifies the combos that occur in all failing cases;
+ * bad_combo_list identifies transforms that do not prevent the
+ * failure.
+ */
+ if (bad_combo != ~0U)
+ printf("%s[0x%x]: PROBLEM: 0x%x[0x%x] ANTIDOTE: 0x%x\n",
+ dp->filename, active, bad_combo, bad_combo_list,
+ rw_transforms & ~bad_combo_list);
+
+ else
+ printf("%s: no %sbad combos found\n", dp->filename,
+ (dp->options & SKIP_BUGS) ? "additional " : "");
+ }
+ }
+}
+
+static int
+do_test(struct display *dp, const char *file)
+ /* Exists solely to isolate the setjmp clobbers */
+{
+ int ret = setjmp(dp->error_return);
+
+ if (ret == 0)
+ {
+ test_one_file(dp, file);
+ return 0;
+ }
+
+ else if (ret < ERRORS) /* shouldn't longjmp on warnings */
+ display_log(dp, INTERNAL_ERROR, "unexpected return code %d", ret);
+
+ return ret;
+}
+
+int
+main(const int argc, const char * const * const argv)
+{
+ /* For each file on the command line test it with a range of transforms */
+ int option_end, ilog = 0;
+ struct display d;
+
+ validate_T();
+ display_init(&d);
+
+ for (option_end=1; option_end<argc; ++option_end)
+ {
+ const char *name = argv[option_end];
+
+ if (strcmp(name, "--verbose") == 0)
+ d.options = (d.options & ~LEVEL_MASK) | VERBOSE;
+
+ else if (strcmp(name, "--warnings") == 0)
+ d.options = (d.options & ~LEVEL_MASK) | WARNINGS;
+
+ else if (strcmp(name, "--errors") == 0)
+ d.options = (d.options & ~LEVEL_MASK) | ERRORS;
+
+ else if (strcmp(name, "--quiet") == 0)
+ d.options = (d.options & ~LEVEL_MASK) | QUIET;
+
+ else if (strcmp(name, "--exhaustive") == 0)
+ d.options |= EXHAUSTIVE;
+
+ else if (strcmp(name, "--fast") == 0)
+ d.options &= ~EXHAUSTIVE;
+
+ else if (strcmp(name, "--strict") == 0)
+ d.options |= STRICT;
+
+ else if (strcmp(name, "--relaxed") == 0)
+ d.options &= ~STRICT;
+
+ else if (strcmp(name, "--log") == 0)
+ {
+ ilog = option_end; /* prevent display */
+ d.options |= LOG;
+ }
+
+ else if (strcmp(name, "--nolog") == 0)
+ d.options &= ~LOG;
+
+ else if (strcmp(name, "--continue") == 0)
+ d.options |= CONTINUE;
+
+ else if (strcmp(name, "--stop") == 0)
+ d.options &= ~CONTINUE;
+
+ else if (strcmp(name, "--skip-bugs") == 0)
+ d.options |= SKIP_BUGS;
+
+ else if (strcmp(name, "--test-all") == 0)
+ d.options &= ~SKIP_BUGS;
+
+ else if (strcmp(name, "--log-skipped") == 0)
+ d.options |= LOG_SKIPPED;
+
+ else if (strcmp(name, "--nolog-skipped") == 0)
+ d.options &= ~LOG_SKIPPED;
+
+ else if (strcmp(name, "--find-bad-combos") == 0)
+ d.options |= FIND_BAD_COMBOS;
+
+ else if (strcmp(name, "--nofind-bad-combos") == 0)
+ d.options &= ~FIND_BAD_COMBOS;
+
+ else if (name[0] == '-' && name[1] == '-')
+ {
+ fprintf(stderr, "pngimage: %s: unknown option\n", name);
+ return 99;
+ }
+
+ else
+ break; /* Not an option */
+ }
+
+ {
+ int i;
+ int errors = 0;
+
+ for (i=option_end; i<argc; ++i)
+ {
+ {
+ int ret = do_test(&d, argv[i]);
+
+ if (ret > QUIET) /* abort on user or internal error */
+ return 99;
+ }
+
+ /* Here on any return, including failures, except user/internal issues
+ */
+ {
+ const int pass = (d.options & STRICT) ?
+ RESULT_STRICT(d.results) : RESULT_RELAXED(d.results);
+
+ if (!pass)
+ ++errors;
+
+ if (d.options & LOG)
+ {
+ int j;
+
+ printf("%s: pngimage ", pass ? "PASS" : "FAIL");
+
+ for (j=1; j<option_end; ++j) if (j != ilog)
+ printf("%s ", argv[j]);
+
+ printf("%s\n", d.filename);
+ }
+ }
+
+ display_clean(&d);
+ }
+
+ return errors != 0;
+ }
+}
+#else /* !PNG_INFO_IMAGE_SUPPORTED || !PNG_READ_SUPPORTED */
+int
+main(void)
+{
+ fprintf(stderr, "pngimage: no support for png_read/write_image\n");
+ return 77;
+}
+#endif
diff --git a/contrib/libtests/pngstest.c b/contrib/libtests/pngstest.c
index 35e7c87..d20e8f2 100644
--- a/contrib/libtests/pngstest.c
+++ b/contrib/libtests/pngstest.c
@@ -3,7 +3,7 @@
*
* Copyright (c) 2013 John Cunningham Bowler
*
- * Last changed in libpng 1.6.1 [March 28, 2013]
+ * Last changed in libpng 1.6.8 [December 19, 2013]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
@@ -517,14 +517,23 @@
for (f=0; f<FORMAT_COUNT; ++f)
{
- /* Eliminate redundant settings. */
- /* BGR is meaningless if no color: */
- if ((f & PNG_FORMAT_FLAG_COLOR) == 0 && (f & PNG_FORMAT_FLAG_BGR) != 0)
+ /* Eliminate redundant and unsupported settings. */
+# ifdef PNG_FORMAT_BGR_SUPPORTED
+ /* BGR is meaningless if no color: */
+ if ((f & PNG_FORMAT_FLAG_COLOR) == 0 &&
+ (f & PNG_FORMAT_FLAG_BGR) != 0)
+# else
+ if ((f & 0x10U/*HACK: fixed value*/) != 0)
+# endif
continue;
/* AFIRST is meaningless if no alpha: */
- if ((f & PNG_FORMAT_FLAG_ALPHA) == 0 &&
- (f & PNG_FORMAT_FLAG_AFIRST) != 0)
+# ifdef PNG_FORMAT_AFIRST_SUPPORTED
+ if ((f & PNG_FORMAT_FLAG_ALPHA) == 0 &&
+ (f & PNG_FORMAT_FLAG_AFIRST) != 0)
+# else
+ if ((f & 0x20U/*HACK: fixed value*/) != 0)
+# endif
continue;
format_set(pf, f);
@@ -786,6 +795,7 @@
p->a = pp[1];
}
+#ifdef PNG_FORMAT_AFIRST_SUPPORTED
static void
gp_ag8(Pixel *p, png_const_voidp pb)
{
@@ -794,6 +804,7 @@
p->r = p->g = p->b = pp[1];
p->a = pp[0];
}
+#endif
static void
gp_rgb8(Pixel *p, png_const_voidp pb)
@@ -806,6 +817,7 @@
p->a = 255;
}
+#ifdef PNG_FORMAT_BGR_SUPPORTED
static void
gp_bgr8(Pixel *p, png_const_voidp pb)
{
@@ -816,6 +828,7 @@
p->b = pp[0];
p->a = 255;
}
+#endif
static void
gp_rgba8(Pixel *p, png_const_voidp pb)
@@ -828,6 +841,7 @@
p->a = pp[3];
}
+#ifdef PNG_FORMAT_BGR_SUPPORTED
static void
gp_bgra8(Pixel *p, png_const_voidp pb)
{
@@ -838,7 +852,9 @@
p->b = pp[0];
p->a = pp[3];
}
+#endif
+#ifdef PNG_FORMAT_AFIRST_SUPPORTED
static void
gp_argb8(Pixel *p, png_const_voidp pb)
{
@@ -849,7 +865,9 @@
p->b = pp[3];
p->a = pp[0];
}
+#endif
+#if defined(PNG_FORMAT_AFIRST_SUPPORTED) && defined(PNG_FORMAT_BGR_SUPPORTED)
static void
gp_abgr8(Pixel *p, png_const_voidp pb)
{
@@ -860,6 +878,7 @@
p->b = pp[1];
p->a = pp[0];
}
+#endif
static void
gp_g16(Pixel *p, png_const_voidp pb)
@@ -879,6 +898,7 @@
p->a = pp[1];
}
+#ifdef PNG_FORMAT_AFIRST_SUPPORTED
static void
gp_ag16(Pixel *p, png_const_voidp pb)
{
@@ -887,6 +907,7 @@
p->r = p->g = p->b = pp[1];
p->a = pp[0];
}
+#endif
static void
gp_rgb16(Pixel *p, png_const_voidp pb)
@@ -899,6 +920,7 @@
p->a = 65535;
}
+#ifdef PNG_FORMAT_BGR_SUPPORTED
static void
gp_bgr16(Pixel *p, png_const_voidp pb)
{
@@ -909,6 +931,7 @@
p->b = pp[0];
p->a = 65535;
}
+#endif
static void
gp_rgba16(Pixel *p, png_const_voidp pb)
@@ -921,6 +944,7 @@
p->a = pp[3];
}
+#ifdef PNG_FORMAT_BGR_SUPPORTED
static void
gp_bgra16(Pixel *p, png_const_voidp pb)
{
@@ -931,7 +955,9 @@
p->b = pp[0];
p->a = pp[3];
}
+#endif
+#ifdef PNG_FORMAT_AFIRST_SUPPORTED
static void
gp_argb16(Pixel *p, png_const_voidp pb)
{
@@ -942,7 +968,9 @@
p->b = pp[3];
p->a = pp[0];
}
+#endif
+#if defined(PNG_FORMAT_AFIRST_SUPPORTED) && defined(PNG_FORMAT_BGR_SUPPORTED)
static void
gp_abgr16(Pixel *p, png_const_voidp pb)
{
@@ -953,6 +981,7 @@
p->b = pp[1];
p->a = pp[0];
}
+#endif
/* Given a format, return the correct one of the above functions. */
static void (*
@@ -966,29 +995,35 @@
{
if (format & PNG_FORMAT_FLAG_COLOR)
{
- if (format & PNG_FORMAT_FLAG_BGR)
- {
- if (format & PNG_FORMAT_FLAG_ALPHA)
+# ifdef PNG_FORMAT_BGR_SUPPORTED
+ if (format & PNG_FORMAT_FLAG_BGR)
{
- if (format & PNG_FORMAT_FLAG_AFIRST)
- return gp_abgr16;
+ if (format & PNG_FORMAT_FLAG_ALPHA)
+ {
+# ifdef PNG_FORMAT_AFIRST_SUPPORTED
+ if (format & PNG_FORMAT_FLAG_AFIRST)
+ return gp_abgr16;
+
+ else
+# endif
+ return gp_bgra16;
+ }
else
- return gp_bgra16;
+ return gp_bgr16;
}
else
- return gp_bgr16;
- }
-
- else
+# endif
{
if (format & PNG_FORMAT_FLAG_ALPHA)
{
- if (format & PNG_FORMAT_FLAG_AFIRST)
- return gp_argb16;
+# ifdef PNG_FORMAT_AFIRST_SUPPORTED
+ if (format & PNG_FORMAT_FLAG_AFIRST)
+ return gp_argb16;
- else
+ else
+# endif
return gp_rgba16;
}
@@ -1001,10 +1036,12 @@
{
if (format & PNG_FORMAT_FLAG_ALPHA)
{
- if (format & PNG_FORMAT_FLAG_AFIRST)
- return gp_ag16;
+# ifdef PNG_FORMAT_AFIRST_SUPPORTED
+ if (format & PNG_FORMAT_FLAG_AFIRST)
+ return gp_ag16;
- else
+ else
+# endif
return gp_ga16;
}
@@ -1017,29 +1054,35 @@
{
if (format & PNG_FORMAT_FLAG_COLOR)
{
- if (format & PNG_FORMAT_FLAG_BGR)
- {
- if (format & PNG_FORMAT_FLAG_ALPHA)
+# ifdef PNG_FORMAT_BGR_SUPPORTED
+ if (format & PNG_FORMAT_FLAG_BGR)
{
- if (format & PNG_FORMAT_FLAG_AFIRST)
- return gp_abgr8;
+ if (format & PNG_FORMAT_FLAG_ALPHA)
+ {
+# ifdef PNG_FORMAT_AFIRST_SUPPORTED
+ if (format & PNG_FORMAT_FLAG_AFIRST)
+ return gp_abgr8;
+
+ else
+# endif
+ return gp_bgra8;
+ }
else
- return gp_bgra8;
+ return gp_bgr8;
}
else
- return gp_bgr8;
- }
-
- else
+# endif
{
if (format & PNG_FORMAT_FLAG_ALPHA)
{
- if (format & PNG_FORMAT_FLAG_AFIRST)
- return gp_argb8;
+# ifdef PNG_FORMAT_AFIRST_SUPPORTED
+ if (format & PNG_FORMAT_FLAG_AFIRST)
+ return gp_argb8;
- else
+ else
+# endif
return gp_rgba8;
}
@@ -1052,10 +1095,12 @@
{
if (format & PNG_FORMAT_FLAG_ALPHA)
{
- if (format & PNG_FORMAT_FLAG_AFIRST)
- return gp_ag8;
+# ifdef PNG_FORMAT_AFIRST_SUPPORTED
+ if (format & PNG_FORMAT_FLAG_AFIRST)
+ return gp_ag8;
- else
+ else
+# endif
return gp_ga8;
}
@@ -2618,13 +2663,15 @@
loc[2] = 1;
- if (format & PNG_FORMAT_FLAG_BGR)
- {
- loc[1] = 2;
- loc[3] = 0;
- }
+# ifdef PNG_FORMAT_BGR_SUPPORTED
+ if (format & PNG_FORMAT_FLAG_BGR)
+ {
+ loc[1] = 2;
+ loc[3] = 0;
+ }
- else
+ else
+# endif
{
loc[1] = 0;
loc[3] = 2;
@@ -2639,15 +2686,17 @@
if (format & PNG_FORMAT_FLAG_ALPHA)
{
- if (format & PNG_FORMAT_FLAG_AFIRST)
- {
- loc[0] = 0;
- ++loc[1];
- ++loc[2];
- ++loc[3];
- }
+# ifdef PNG_FORMAT_AFIRST_SUPPORTED
+ if (format & PNG_FORMAT_FLAG_AFIRST)
+ {
+ loc[0] = 0;
+ ++loc[1];
+ ++loc[2];
+ ++loc[3];
+ }
- else
+ else
+# endif
loc[0] = channels;
++channels;
@@ -3017,17 +3066,25 @@
return logerror(image, "memory init: ", image->file_name, "");
}
- else if (image->input_file != NULL)
- {
- if (!png_image_begin_read_from_stdio(&image->image, image->input_file))
- return logerror(image, "stdio init: ", image->file_name, "");
- }
+# ifdef PNG_STDIO_SUPPORTED
+ else if (image->input_file != NULL)
+ {
+ if (!png_image_begin_read_from_stdio(&image->image, image->input_file))
+ return logerror(image, "stdio init: ", image->file_name, "");
+ }
- else
- {
- if (!png_image_begin_read_from_file(&image->image, image->file_name))
- return logerror(image, "file init: ", image->file_name, "");
- }
+ else
+ {
+ if (!png_image_begin_read_from_file(&image->image, image->file_name))
+ return logerror(image, "file init: ", image->file_name, "");
+ }
+# else
+ else
+ {
+ return logerror(image, "unsupported file/stdio init: ",
+ image->file_name, "");
+ }
+# endif
/* This must be set after the begin_read call: */
if (image->opts & sRGB_16BIT)
@@ -3466,11 +3523,19 @@
memset(gpc_error_via_linear, 0, sizeof gpc_error_via_linear);
}
else if (strcmp(arg, "--file") == 0)
- opts |= READ_FILE;
+# ifdef PNG_STDIO_SUPPORTED
+ opts |= READ_FILE;
+# else
+ return 77; /* skipped: no support */
+# endif
else if (strcmp(arg, "--memory") == 0)
opts &= ~READ_FILE;
else if (strcmp(arg, "--stdio") == 0)
- opts |= USE_STDIO;
+# ifdef PNG_STDIO_SUPPORTED
+ opts |= USE_STDIO;
+# else
+ return 77; /* skipped: no support */
+# endif
else if (strcmp(arg, "--name") == 0)
opts &= ~USE_STDIO;
else if (strcmp(arg, "--verbose") == 0)
diff --git a/contrib/libtests/pngunknown.c b/contrib/libtests/pngunknown.c
index 25452db..b8c4899 100644
--- a/contrib/libtests/pngunknown.c
+++ b/contrib/libtests/pngunknown.c
@@ -1,8 +1,8 @@
/* pngunknown.c - test the read side unknown chunk handling
*
- * Last changed in libpng 1.6.0 [February 14, 2013]
- * Copyright (c) 2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.10 [March 6, 2014]
+ * Copyright (c) 2014 Glenn Randers-Pehrson
* Written by John Cunningham Bowler
*
* This code is released under the libpng license.
@@ -30,7 +30,19 @@
# include "../../png.h"
#endif
-#ifdef PNG_READ_SUPPORTED
+/* Since this program tests the ability to change the unknown chunk handling
+ * these must be defined:
+ */
+#if defined(PNG_SET_UNKNOWN_CHUNKS_SUPPORTED) &&\
+ defined(PNG_READ_SUPPORTED)
+
+/* One of these must be defined to allow us to find out what happened. It is
+ * still useful to set unknown chunk handling without either of these in order
+ * to cause *known* chunks to be discarded. This can be a significant
+ * efficiency gain, but it can't really be tested here.
+ */
+#if defined(PNG_READ_USER_CHUNKS_SUPPORTED) ||\
+ defined(PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED)
#if PNG_LIBPNG_VER < 10500
/* This deliberately lacks the PNG_CONST. */
@@ -75,43 +87,74 @@
# define png_const_structp png_structp
#endif
+#if PNG_LIBPNG_VER < 10700
+ /* Copied from libpng 1.7.0 png.h */
+#define PNG_u2(b1, b2) (((unsigned int)(b1) << 8) + (b2))
-/* Copied from pngpriv.h */
-#define PNG_32b(b,s) ((png_uint_32)(b) << (s))
-#define PNG_CHUNK(b1,b2,b3,b4) \
- (PNG_32b(b1,24) | PNG_32b(b2,16) | PNG_32b(b3,8) | PNG_32b(b4,0))
+#define PNG_U16(b1, b2) ((png_uint_16)PNG_u2(b1, b2))
+#define PNG_U32(b1, b2, b3, b4)\
+ (((png_uint_32)PNG_u2(b1, b2) << 16) + PNG_u2(b3, b4))
-#define png_IHDR PNG_CHUNK( 73, 72, 68, 82)
-#define png_IDAT PNG_CHUNK( 73, 68, 65, 84)
-#define png_IEND PNG_CHUNK( 73, 69, 78, 68)
-#define png_PLTE PNG_CHUNK( 80, 76, 84, 69)
-#define png_bKGD PNG_CHUNK( 98, 75, 71, 68)
-#define png_cHRM PNG_CHUNK( 99, 72, 82, 77)
-#define png_gAMA PNG_CHUNK(103, 65, 77, 65)
-#define png_hIST PNG_CHUNK(104, 73, 83, 84)
-#define png_iCCP PNG_CHUNK(105, 67, 67, 80)
-#define png_iTXt PNG_CHUNK(105, 84, 88, 116)
-#define png_oFFs PNG_CHUNK(111, 70, 70, 115)
-#define png_pCAL PNG_CHUNK(112, 67, 65, 76)
-#define png_sCAL PNG_CHUNK(115, 67, 65, 76)
-#define png_pHYs PNG_CHUNK(112, 72, 89, 115)
-#define png_sBIT PNG_CHUNK(115, 66, 73, 84)
-#define png_sPLT PNG_CHUNK(115, 80, 76, 84)
-#define png_sRGB PNG_CHUNK(115, 82, 71, 66)
-#define png_sTER PNG_CHUNK(115, 84, 69, 82)
-#define png_tEXt PNG_CHUNK(116, 69, 88, 116)
-#define png_tIME PNG_CHUNK(116, 73, 77, 69)
-#define png_tRNS PNG_CHUNK(116, 82, 78, 83)
-#define png_zTXt PNG_CHUNK(122, 84, 88, 116)
-#define png_vpAg PNG_CHUNK('v', 'p', 'A', 'g')
+/* Constants for known chunk types.
+ */
+#define png_IDAT PNG_U32( 73, 68, 65, 84)
+#define png_IEND PNG_U32( 73, 69, 78, 68)
+#define png_IHDR PNG_U32( 73, 72, 68, 82)
+#define png_PLTE PNG_U32( 80, 76, 84, 69)
+#define png_bKGD PNG_U32( 98, 75, 71, 68)
+#define png_cHRM PNG_U32( 99, 72, 82, 77)
+#define png_fRAc PNG_U32(102, 82, 65, 99) /* registered, not defined */
+#define png_gAMA PNG_U32(103, 65, 77, 65)
+#define png_gIFg PNG_U32(103, 73, 70, 103)
+#define png_gIFt PNG_U32(103, 73, 70, 116) /* deprecated */
+#define png_gIFx PNG_U32(103, 73, 70, 120)
+#define png_hIST PNG_U32(104, 73, 83, 84)
+#define png_iCCP PNG_U32(105, 67, 67, 80)
+#define png_iTXt PNG_U32(105, 84, 88, 116)
+#define png_oFFs PNG_U32(111, 70, 70, 115)
+#define png_pCAL PNG_U32(112, 67, 65, 76)
+#define png_pHYs PNG_U32(112, 72, 89, 115)
+#define png_sBIT PNG_U32(115, 66, 73, 84)
+#define png_sCAL PNG_U32(115, 67, 65, 76)
+#define png_sPLT PNG_U32(115, 80, 76, 84)
+#define png_sRGB PNG_U32(115, 82, 71, 66)
+#define png_sTER PNG_U32(115, 84, 69, 82)
+#define png_tEXt PNG_U32(116, 69, 88, 116)
+#define png_tIME PNG_U32(116, 73, 77, 69)
+#define png_tRNS PNG_U32(116, 82, 78, 83)
+#define png_zTXt PNG_U32(122, 84, 88, 116)
/* Test on flag values as defined in the spec (section 5.4): */
-#define PNG_CHUNK_ANCILLARY(c ) (1 & ((c) >> 29))
+#define PNG_CHUNK_ANCILLARY(c) (1 & ((c) >> 29))
#define PNG_CHUNK_CRITICAL(c) (!PNG_CHUNK_ANCILLARY(c))
#define PNG_CHUNK_PRIVATE(c) (1 & ((c) >> 21))
#define PNG_CHUNK_RESERVED(c) (1 & ((c) >> 13))
#define PNG_CHUNK_SAFE_TO_COPY(c) (1 & ((c) >> 5))
+#endif /* PNG_LIBPNG_VER < 10700 */
+
+#ifdef __cplusplus
+# define this not_the_cpp_this
+# define new not_the_cpp_new
+# define voidcast(type, value) static_cast<type>(value)
+#else
+# define voidcast(type, value) (value)
+#endif /* __cplusplus */
+
+/* Unused formal parameter errors are removed using the following macro which is
+ * expected to have no bad effects on performance.
+ */
+#ifndef UNUSED
+# if defined(__GNUC__) || defined(_MSC_VER)
+# define UNUSED(param) (void)param;
+# else
+# define UNUSED(param)
+# endif
+#endif
+
+/* Types of chunks not known to libpng */
+#define png_vpAg PNG_U32(118, 112, 65, 103)
+
/* Chunk information */
#define PNG_INFO_tEXt 0x10000000U
#define PNG_INFO_iTXt 0x20000000U
@@ -139,8 +182,8 @@
{ "PLTE", PNG_INFO_PLTE, png_PLTE, 0, 0, ABSENT, 0 },
/* Non-critical chunks that libpng handles */
- /* This is a mess but it seems to be the only way to do it - there is no way to
- * check for definition outside a #if.
+ /* This is a mess but it seems to be the only way to do it - there is no way
+ * to check for a definition outside a #if.
*/
{ "bKGD", PNG_INFO_bKGD, png_bKGD,
# ifdef PNG_READ_bKGD_SUPPORTED
@@ -317,14 +360,16 @@
static int
ancillary(const char *name)
{
- return PNG_CHUNK_ANCILLARY(PNG_CHUNK(name[0], name[1], name[2], name[3]));
+ return PNG_CHUNK_ANCILLARY(PNG_U32(name[0], name[1], name[2], name[3]));
}
+#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
static int
ancillaryb(const png_byte *name)
{
- return PNG_CHUNK_ANCILLARY(PNG_CHUNK(name[0], name[1], name[2], name[3]));
+ return PNG_CHUNK_ANCILLARY(PNG_U32(name[0], name[1], name[2], name[3]));
}
+#endif
/* Type of an error_ptr */
typedef struct
@@ -332,8 +377,11 @@
jmp_buf error_return;
png_structp png_ptr;
png_infop info_ptr, end_ptr;
+ png_uint_32 before_IDAT;
+ png_uint_32 after_IDAT;
int error_count;
int warning_count;
+ int keep; /* the default value */
const char *program;
const char *file;
const char *test;
@@ -366,9 +414,6 @@
d->test);
exit(1);
}
-
- /* Invalidate the test */
- d->test = init;
}
PNG_FUNCTION(void, display_exit, (display *d), static PNG_NORETURN)
@@ -394,7 +439,7 @@
}
/* libpng error and warning callbacks */
-PNG_FUNCTION(void, error, (png_structp png_ptr, const char *message),
+PNG_FUNCTION(void, (PNGCBAPI error), (png_structp png_ptr, const char *message),
static PNG_NORETURN)
{
display *d = (display*)png_get_error_ptr(png_ptr);
@@ -403,7 +448,7 @@
display_exit(d);
}
-static void
+static void PNGCBAPI
warning(png_structp png_ptr, const char *message)
{
display *d = (display*)png_get_error_ptr(png_ptr);
@@ -444,11 +489,88 @@
return flags;
}
+#ifdef PNG_READ_USER_CHUNKS_SUPPORTED
+static int PNGCBAPI
+read_callback(png_structp pp, png_unknown_chunkp pc)
+{
+ /* This function mimics the behavior of png_set_keep_unknown_chunks by
+ * returning '0' to keep the chunk and '1' to discard it.
+ */
+ display *d = voidcast(display*, png_get_user_chunk_ptr(pp));
+ int chunk = findb(pc->name);
+ int keep, discard;
+
+ if (chunk < 0) /* not one in our list, so not a known chunk */
+ keep = d->keep;
+
+ else
+ {
+ keep = chunk_info[chunk].keep;
+ if (keep == PNG_HANDLE_CHUNK_AS_DEFAULT)
+ {
+ /* See the comments in png.h - use the default for unknown chunks,
+ * do not keep known chunks.
+ */
+ if (chunk_info[chunk].unknown)
+ keep = d->keep;
+
+ else
+ keep = PNG_HANDLE_CHUNK_NEVER;
+ }
+ }
+
+ switch (keep)
+ {
+ default:
+ fprintf(stderr, "%s(%s): %d: unrecognized chunk option\n", d->file,
+ d->test, chunk_info[chunk].keep);
+ display_exit(d);
+
+ case PNG_HANDLE_CHUNK_AS_DEFAULT:
+ case PNG_HANDLE_CHUNK_NEVER:
+ discard = 1/*handled; discard*/;
+ break;
+
+ case PNG_HANDLE_CHUNK_IF_SAFE:
+ case PNG_HANDLE_CHUNK_ALWAYS:
+ discard = 0/*not handled; keep*/;
+ break;
+ }
+
+ /* Also store information about this chunk in the display, the relevant flag
+ * is set if the chunk is to be kept ('not handled'.)
+ */
+ if (chunk >= 0) if (!discard) /* stupidity to stop a GCC warning */
+ {
+ png_uint_32 flag = chunk_info[chunk].flag;
+
+ if (pc->location & PNG_AFTER_IDAT)
+ d->after_IDAT |= flag;
+
+ else
+ d->before_IDAT |= flag;
+ }
+
+ /* However if there is no support to store unknown chunks don't ask libpng to
+ * do it; there will be an png_error.
+ */
+# ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
+ return discard;
+# else
+ return 1; /*handled; discard*/
+# endif
+}
+#endif /* READ_USER_CHUNKS_SUPPORTED */
+
+#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
static png_uint_32
-get_unknown(display *d, int def, png_infop info_ptr)
+get_unknown(display *d, png_infop info_ptr, int after_IDAT)
{
/* Create corresponding 'unknown' flags */
png_uint_32 flags = 0;
+
+ UNUSED(after_IDAT)
+
{
png_unknown_chunkp unknown;
int num_unknown = png_get_unknown_chunks(d->png_ptr, info_ptr, &unknown);
@@ -458,16 +580,16 @@
int chunk = findb(unknown[num_unknown].name);
/* Chunks not known to pngunknown must be validated here; since they
- * must also be unknown to libpng the 'def' behavior should have been
- * used.
+ * must also be unknown to libpng the 'display->keep' behavior should
+ * have been used.
*/
- if (chunk < 0) switch (def)
+ if (chunk < 0) switch (d->keep)
{
default: /* impossible */
case PNG_HANDLE_CHUNK_AS_DEFAULT:
case PNG_HANDLE_CHUNK_NEVER:
fprintf(stderr, "%s(%s): %s: %s: unknown chunk saved\n",
- d->file, d->test, def ? "discard" : "default",
+ d->file, d->test, d->keep ? "discard" : "default",
unknown[num_unknown].name);
++(d->error_count);
break;
@@ -493,14 +615,39 @@
return flags;
}
+#else
+static png_uint_32
+get_unknown(display *d, png_infop info_ptr, int after_IDAT)
+ /* Otherwise this will return the cached values set by any user callback */
+{
+ UNUSED(info_ptr);
+
+ if (after_IDAT)
+ return d->after_IDAT;
+
+ else
+ return d->before_IDAT;
+}
+
+# ifndef PNG_READ_USER_CHUNKS_SUPPORTED
+ /* The #defines above should mean this is never reached, it's just here as
+ * a check to ensure the logic is correct.
+ */
+# error No store support and no user chunk support, this will not work
+# endif
+#endif
static int
check(FILE *fp, int argc, const char **argv, png_uint_32p flags/*out*/,
- display *d)
+ display *d, int set_callback)
{
- int i, def = PNG_HANDLE_CHUNK_AS_DEFAULT, npasses, ipass;
+ int i, npasses, ipass;
png_uint_32 height;
+ d->keep = PNG_HANDLE_CHUNK_AS_DEFAULT;
+ d->before_IDAT = 0;
+ d->after_IDAT = 0;
+
/* Some of these errors are permanently fatal and cause an exit here, others
* are per-test and cause an error return.
*/
@@ -526,6 +673,16 @@
png_init_io(d->png_ptr, fp);
+# ifdef PNG_READ_USER_CHUNKS_SUPPORTED
+ /* This is only done if requested by the caller; it interferes with the
+ * standard store/save mechanism.
+ */
+ if (set_callback)
+ png_set_read_user_chunk_fn(d->png_ptr, d, read_callback);
+# else
+ UNUSED(set_callback)
+# endif
+
/* Handle each argument in turn; multiple settings are possible for the same
* chunk and multiple calls will occur (the last one should override all
* preceding ones).
@@ -565,13 +722,11 @@
* in this case, so we just check the arguments! This could
* be improved in the future by using the read callback.
*/
-# ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
- png_byte name[5];
+ png_byte name[5];
- memcpy(name, chunk_info[chunk].name, 5);
- png_set_keep_unknown_chunks(d->png_ptr, option, name, 1);
- chunk_info[chunk].keep = option;
-# endif
+ memcpy(name, chunk_info[chunk].name, 5);
+ png_set_keep_unknown_chunks(d->png_ptr, option, name, 1);
+ chunk_info[chunk].keep = option;
continue;
}
@@ -580,10 +735,8 @@
case 7: /* default */
if (memcmp(argv[i], "default", 7) == 0)
{
-# ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
- png_set_keep_unknown_chunks(d->png_ptr, option, NULL, 0);
-# endif
- def = option;
+ png_set_keep_unknown_chunks(d->png_ptr, option, NULL, 0);
+ d->keep = option;
continue;
}
@@ -592,14 +745,12 @@
case 3: /* all */
if (memcmp(argv[i], "all", 3) == 0)
{
-# ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
- png_set_keep_unknown_chunks(d->png_ptr, option, NULL, -1);
- def = option;
+ png_set_keep_unknown_chunks(d->png_ptr, option, NULL, -1);
+ d->keep = option;
- for (chunk = 0; chunk < NINFO; ++chunk)
- if (chunk_info[chunk].all)
- chunk_info[chunk].keep = option;
-# endif
+ for (chunk = 0; chunk < NINFO; ++chunk)
+ if (chunk_info[chunk].all)
+ chunk_info[chunk].keep = option;
continue;
}
@@ -673,18 +824,18 @@
png_read_end(d->png_ptr, d->end_ptr);
flags[0] = get_valid(d, d->info_ptr);
- flags[1] = get_unknown(d, def, d->info_ptr);
+ flags[1] = get_unknown(d, d->info_ptr, 0/*before IDAT*/);
/* Only png_read_png sets PNG_INFO_IDAT! */
flags[chunk_info[0/*IDAT*/].keep != PNG_HANDLE_CHUNK_AS_DEFAULT] |=
PNG_INFO_IDAT;
flags[2] = get_valid(d, d->end_ptr);
- flags[3] = get_unknown(d, def, d->end_ptr);
+ flags[3] = get_unknown(d, d->end_ptr, 1/*after IDAT*/);
clean_display(d);
- return def;
+ return d->keep;
}
static void
@@ -705,7 +856,7 @@
static void
check_handling(display *d, int def, png_uint_32 chunks, png_uint_32 known,
- png_uint_32 unknown, const char *position)
+ png_uint_32 unknown, const char *position, int set_callback)
{
while (chunks)
{
@@ -812,8 +963,9 @@
if (errorx != NULL)
{
++(d->error_count);
- fprintf(stderr, "%s(%s): %s %s %s: %s\n",
- d->file, d->test, type, chunk_info[i].name, position, errorx);
+ fprintf(stderr, "%s(%s%s): %s %s %s: %s\n", d->file, d->test,
+ set_callback ? ",callback" : "",
+ type, chunk_info[i].name, position, errorx);
}
chunks &= ~flag;
@@ -822,7 +974,7 @@
static void
perform_one_test(FILE *fp, int argc, const char **argv,
- png_uint_32 *default_flags, display *d)
+ png_uint_32 *default_flags, display *d, int set_callback)
{
int def;
png_uint_32 flags[2][4];
@@ -831,7 +983,7 @@
clear_keep();
memcpy(flags[0], default_flags, sizeof flags[0]);
- def = check(fp, argc, argv, flags[1], d);
+ def = check(fp, argc, argv, flags[1], d, set_callback);
/* Chunks should either be known or unknown, never both and this should apply
* whether the chunk is before or after the IDAT (actually, the app can
@@ -866,9 +1018,9 @@
* it or not.
*/
check_handling(d, def, flags[0][0] | flags[0][1], flags[1][0], flags[1][1],
- "before IDAT");
+ "before IDAT", set_callback);
check_handling(d, def, flags[0][2] | flags[0][3], flags[1][2], flags[1][3],
- "after IDAT");
+ "after IDAT", set_callback);
}
static void
@@ -878,7 +1030,12 @@
if (setjmp(d->error_return) == 0)
{
d->test = test; /* allow use of d->error_return */
- perform_one_test(fp, argc, argv, default_flags, d);
+# ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
+ perform_one_test(fp, argc, argv, default_flags, d, 0);
+# endif
+# ifdef PNG_READ_USER_CHUNKS_SUPPORTED
+ perform_one_test(fp, argc, argv, default_flags, d, 1);
+# endif
d->test = init; /* prevent use of d->error_return */
}
}
@@ -902,7 +1059,7 @@
fprintf(stderr, "pngunknown: %s: usage:\n %s [--strict] "
"--default|{(CHNK|default|all)=(default|discard|if-safe|save)} "
"testfile.png\n", reason, program);
- exit(2);
+ exit(99);
}
int
@@ -950,11 +1107,6 @@
else if (default_tests) if (argc != 1)
usage(d.program, "extra arguments");
-# ifndef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
- fprintf(stderr, "%s: warning: no 'save' support so arguments ignored\n",
- d.program);
-# endif
-
/* The name of the test file is the last argument; remove it. */
d.file = argv[--argc];
@@ -962,24 +1114,40 @@
if (fp == NULL)
{
perror(d.file);
- exit(2);
+ exit(99);
}
/* First find all the chunks, known and unknown, in the test file, a failure
* here aborts the whole test.
+ *
+ * If 'save' is supported then the normal saving method should happen,
+ * otherwise if 'read' is supported then the read callback will do the
+ * same thing. If both are supported the 'read' callback won't be
+ * instantiated by default. If 'save' is *not* supported then a user
+ * callback is required even though we can call png_get_unknown_chunks.
*/
- if (check(fp, 1, &count_argv, default_flags, &d) !=
- PNG_HANDLE_CHUNK_ALWAYS)
+ if (check(fp, 1, &count_argv, default_flags, &d,
+# ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
+ 0
+# else
+ 1
+# endif
+ ) != PNG_HANDLE_CHUNK_ALWAYS)
{
fprintf(stderr, "%s: %s: internal error\n", d.program, d.file);
- exit(3);
+ exit(99);
}
/* Now find what the various supplied options cause to change: */
if (!default_tests)
{
d.test = cmd; /* acts as a flag to say exit, do not longjmp */
- perform_one_test(fp, argc, argv, default_flags, &d);
+# ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
+ perform_one_test(fp, argc, argv, default_flags, &d, 0);
+# endif
+# ifdef PNG_READ_USER_CHUNKS_SUPPORTED
+ perform_one_test(fp, argc, argv, default_flags, &d, 1);
+# endif
d.test = init;
}
@@ -1037,14 +1205,14 @@
if (fclose(fsuccess) || err)
{
fprintf(stderr, "%s: write failed\n", touch_file);
- exit(1);
+ exit(99);
}
}
else
{
fprintf(stderr, "%s: open failed\n", touch_file);
- exit(1);
+ exit(99);
}
}
@@ -1054,13 +1222,24 @@
return 1;
}
-#else
+#else /* !(READ_USER_CHUNKS || SAVE_UNKNOWN_CHUNKS) */
int
main(void)
{
fprintf(stderr,
- " test ignored because libpng was not built with unknown chunk support\n");
+ " test ignored: no support to find out about unknown chunks\n");
/* So the test is skipped: */
return 77;
}
-#endif
+#endif /* READ_USER_CHUNKS || SAVE_UNKNOWN_CHUNKS */
+
+#else /* !(SET_UNKNOWN_CHUNKS && READ) */
+int
+main(void)
+{
+ fprintf(stderr,
+ " test ignored: no support to modify unknown chunk handling\n");
+ /* So the test is skipped: */
+ return 77;
+}
+#endif /* SET_UNKNOWN_CHUNKS && READ*/
diff --git a/contrib/libtests/pngvalid.c b/contrib/libtests/pngvalid.c
index fbd6778..788b693 100644
--- a/contrib/libtests/pngvalid.c
+++ b/contrib/libtests/pngvalid.c
@@ -1,8 +1,8 @@
/* pngvalid.c - validate libpng by constructing then reading png files.
*
- * Last changed in libpng 1.6.1 [March 28, 2013]
- * Copyright (c) 2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.10 [March 6, 2014]
+ * Copyright (c) 2014 Glenn Randers-Pehrson
* Written by John Cunningham Bowler
*
* This code is released under the libpng license.
@@ -43,7 +43,25 @@
# include "../../png.h"
#endif
-#ifdef PNG_WRITE_SUPPORTED /* else pngvalid can do nothing */
+#ifdef PNG_ZLIB_HEADER
+# include PNG_ZLIB_HEADER
+#else
+# include <zlib.h> /* For crc32 */
+#endif
+
+/* 1.6.1 added support for the configure test harness, which uses 77 to indicate
+ * a skipped test, in earlier versions we need to succeed on a skipped test, so:
+ */
+#if PNG_LIBPNG_VER < 10601
+# define SKIP 0
+#else
+# define SKIP 77
+#endif
+
+/* pngvalid requires write support and one of the fixed or floating point APIs.
+ */
+#if defined(PNG_WRITE_SUPPORTED) &&\
+ (defined(PNG_FIXED_POINT_SUPPORTED) || defined(PNG_FLOATING_POINT_SUPPORTED))
#if PNG_LIBPNG_VER < 10500
/* This deliberately lacks the PNG_CONST. */
@@ -88,8 +106,6 @@
# define png_const_structp png_structp
#endif
-#include <zlib.h> /* For crc32 */
-
#include <float.h> /* For floating point constants */
#include <stdlib.h> /* For malloc */
#include <string.h> /* For memcpy, memset */
@@ -344,11 +360,16 @@
static int
next_format(png_bytep colour_type, png_bytep bit_depth,
- unsigned int* palette_number)
+ unsigned int* palette_number, int no_low_depth_gray)
{
if (*bit_depth == 0)
{
- *colour_type = 0, *bit_depth = 1, *palette_number = 0;
+ *colour_type = 0;
+ if (no_low_depth_gray)
+ *bit_depth = 8;
+ else
+ *bit_depth = 1;
+ *palette_number = 0;
return 1;
}
@@ -616,7 +637,12 @@
unsigned int validated :1; /* used as a temporary flag */
int nerrors;
int nwarnings;
- char test[128]; /* Name of test */
+ int noptions; /* number of options below: */
+ struct {
+ unsigned char option; /* option number, 0..30 */
+ unsigned char setting; /* setting (unset,invalid,on,off) */
+ } options[16];
+ char test[128]; /* Name of test */
char error[256];
/* Read fields */
@@ -717,6 +743,7 @@
ps->new.prev = NULL;
ps->palette = NULL;
ps->npalette = 0;
+ ps->noptions = 0;
}
static void
@@ -894,7 +921,7 @@
#endif /* PNG_READ_SUPPORTED */
/* Functions to use as PNG callbacks. */
-static void
+static void PNGCBAPI
store_error(png_structp ppIn, png_const_charp message) /* PNG_NORETURN */
{
png_const_structp pp = ppIn;
@@ -910,7 +937,7 @@
}
}
-static void
+static void PNGCBAPI
store_warning(png_structp ppIn, png_const_charp message)
{
png_const_structp pp = ppIn;
@@ -1061,7 +1088,7 @@
}
#endif /* PNG_READ_SUPPORTED */
-static void
+static void PNGCBAPI
store_write(png_structp ppIn, png_bytep pb, png_size_t st)
{
png_const_structp pp = ppIn;
@@ -1089,7 +1116,7 @@
}
}
-static void
+static void PNGCBAPI
store_flush(png_structp ppIn)
{
UNUSED(ppIn) /*DOES NOTHING*/
@@ -1183,7 +1210,7 @@
}
}
-static void
+static void PNGCBAPI
store_read(png_structp ppIn, png_bytep pb, png_size_t st)
{
png_const_structp pp = ppIn;
@@ -1257,6 +1284,7 @@
#endif /* PNG_READ_SUPPORTED */
/***************************** MEMORY MANAGEMENT*** ***************************/
+#ifdef PNG_USER_MEM_SUPPORTED
/* A store_memory is simply the header for an allocated block of memory. The
* pointer returned to libpng is just after the end of the header block, the
* allocated memory is followed by a second copy of the 'mark'.
@@ -1375,7 +1403,7 @@
}
/* The memory callbacks: */
-static png_voidp
+static png_voidp PNGCBAPI
store_malloc(png_structp ppIn, png_alloc_size_t cb)
{
png_const_structp pp = ppIn;
@@ -1424,7 +1452,7 @@
return new;
}
-static void
+static void PNGCBAPI
store_free(png_structp ppIn, png_voidp memory)
{
png_const_structp pp = ppIn;
@@ -1457,6 +1485,7 @@
this->next = NULL;
store_memory_free(pp, pool, this);
}
+#endif /* PNG_USER_MEM_SUPPORTED */
/* Setup functions. */
/* Cleanup when aborting a write or after storing the new file. */
@@ -1482,7 +1511,9 @@
/* And make sure that all the memory has been freed - this will output
* spurious errors in the case of memory corruption above, but this is safe.
*/
- store_pool_delete(ps, &ps->write_memory_pool);
+# ifdef PNG_USER_MEM_SUPPORTED
+ store_pool_delete(ps, &ps->write_memory_pool);
+# endif
store_freenew(ps);
}
@@ -1506,18 +1537,32 @@
store_write_reset(ps);
safecat(ps->wname, sizeof ps->wname, 0, name);
- /* Don't do the slow memory checks if doing a speed test. */
- if (ps->speed)
+ /* Don't do the slow memory checks if doing a speed test, also if user
+ * memory is not supported we can't do it anyway.
+ */
+# ifdef PNG_USER_MEM_SUPPORTED
+ if (!ps->speed)
+ ps->pwrite = png_create_write_struct_2(PNG_LIBPNG_VER_STRING,
+ ps, store_error, store_warning, &ps->write_memory_pool,
+ store_malloc, store_free);
+
+ else
+# endif
ps->pwrite = png_create_write_struct(PNG_LIBPNG_VER_STRING,
ps, store_error, store_warning);
- else
- ps->pwrite = png_create_write_struct_2(PNG_LIBPNG_VER_STRING,
- ps, store_error, store_warning, &ps->write_memory_pool,
- store_malloc, store_free);
-
png_set_write_fn(ps->pwrite, ps, store_write, store_flush);
+# ifdef PNG_SET_OPTION_SUPPORTED
+ {
+ int opt;
+ for (opt=0; opt<ps->noptions; ++opt)
+ if (png_set_option(ps->pwrite, ps->options[opt].option,
+ ps->options[opt].setting) == PNG_OPTION_INVALID)
+ png_error(ps->pwrite, "png option invalid");
+ }
+# endif
+
if (ppi != NULL)
*ppi = ps->piwrite = png_create_info_struct(ps->pwrite);
}
@@ -1553,8 +1598,10 @@
}
# endif
- /* Always do this to be safe. */
- store_pool_delete(ps, &ps->read_memory_pool);
+# ifdef PNG_USER_MEM_SUPPORTED
+ /* Always do this to be safe. */
+ store_pool_delete(ps, &ps->read_memory_pool);
+# endif
ps->current = NULL;
ps->next = NULL;
@@ -1581,14 +1628,14 @@
pf = pf->next;
}
- {
+ {
size_t pos;
char msg[FILE_NAME_SIZE+64];
pos = standard_name_from_id(msg, sizeof msg, 0, id);
pos = safecat(msg, sizeof msg, pos, ": file not found");
png_error(ps->pread, msg);
- }
+ }
}
/* The main interface for reading a saved file - pass the id number of the file
@@ -1614,14 +1661,16 @@
* However, given that store_error works correctly in these circumstances
* we don't ever expect NULL in this program.
*/
- if (ps->speed)
- ps->pread = png_create_read_struct(PNG_LIBPNG_VER_STRING, ps,
- store_error, store_warning);
+# ifdef PNG_USER_MEM_SUPPORTED
+ if (!ps->speed)
+ ps->pread = png_create_read_struct_2(PNG_LIBPNG_VER_STRING, ps,
+ store_error, store_warning, &ps->read_memory_pool, store_malloc,
+ store_free);
- else
- ps->pread = png_create_read_struct_2(PNG_LIBPNG_VER_STRING, ps,
- store_error, store_warning, &ps->read_memory_pool, store_malloc,
- store_free);
+ else
+# endif
+ ps->pread = png_create_read_struct(PNG_LIBPNG_VER_STRING, ps, store_error,
+ store_warning);
if (ps->pread == NULL)
{
@@ -1633,6 +1682,16 @@
Throw ps;
}
+# ifdef PNG_SET_OPTION_SUPPORTED
+ {
+ int opt;
+ for (opt=0; opt<ps->noptions; ++opt)
+ if (png_set_option(ps->pread, ps->options[opt].option,
+ ps->options[opt].setting) == PNG_OPTION_INVALID)
+ png_error(ps->pread, "png option invalid");
+ }
+# endif
+
store_read_set(ps, id);
if (ppi != NULL)
@@ -1828,6 +1887,7 @@
double maxout16; /* Maximum output value error */
double maxabs16; /* Absolute sample error 0..1 */
double maxcalc16;/* Absolute sample error 0..1 */
+ double maxcalcG; /* Absolute sample error 0..1 */
double maxpc16; /* Percentage sample error 0..100% */
/* This is set by transforms that need to allow a higher limit, it is an
@@ -1867,10 +1927,15 @@
/* Run the odd-sized image and interlace read/write tests? */
unsigned int test_size :1;
- /* Run tests on reading with a combiniation of transforms, */
+ /* Run tests on reading with a combination of transforms, */
unsigned int test_transform :1;
- /* When to use the use_input_precision option: */
+ /* When to use the use_input_precision option, this controls the gamma
+ * validation code checks. If set any value that is within the transformed
+ * range input-.5 to input+.5 will be accepted, otherwise the value must be
+ * within the normal limits. It should not be necessary to set this; the
+ * result should always be exact within the permitted error limits.
+ */
unsigned int use_input_precision :1;
unsigned int use_input_precision_sbit :1;
unsigned int use_input_precision_16to8 :1;
@@ -1880,8 +1945,8 @@
*/
unsigned int calculations_use_input_precision :1;
- /* If set assume that the calculations are done in 16 bits even if both input
- * and output are 8 bit or less.
+ /* If set assume that the calculations are done in 16 bits even if the sample
+ * depth is 8 bits.
*/
unsigned int assume_16_bit_calculations :1;
@@ -1908,7 +1973,7 @@
/* This returns true if the test should be stopped now because it has already
* failed and it is running silently.
- */
+ */
static int fail(png_modifier *pm)
{
return !pm->log && !pm->this.verbose && (pm->this.nerrors > 0 ||
@@ -1936,6 +2001,7 @@
pm->test_uses_encoding = 0;
pm->maxout8 = pm->maxpc8 = pm->maxabs8 = pm->maxcalc8 = 0;
pm->maxout16 = pm->maxpc16 = pm->maxabs16 = pm->maxcalc16 = 0;
+ pm->maxcalcG = 0;
pm->limit = 4E-3;
pm->log8 = pm->log16 = 0; /* Means 'off' */
pm->error_gray_2 = pm->error_gray_4 = pm->error_gray_8 = 0;
@@ -1950,6 +2016,7 @@
pm->use_input_precision_sbit = 0;
pm->use_input_precision_16to8 = 0;
pm->calculations_use_input_precision = 0;
+ pm->assume_16_bit_calculations = 0;
pm->test_gamma_threshold = 0;
pm->test_gamma_transform = 0;
pm->test_gamma_sbit = 0;
@@ -1964,8 +2031,16 @@
}
#ifdef PNG_READ_TRANSFORMS_SUPPORTED
+
+/* This controls use of checks that explicitly know how libpng digitizes the
+ * samples in calculations; setting this circumvents simple error limit checking
+ * in the rgb_to_gray check, replacing it with an exact copy of the libpng 1.5
+ * algorithm.
+ */
+#define DIGITIZE PNG_LIBPNG_VER < 10700
+
/* If pm->calculations_use_input_precision is set then operations will happen
- * with only 8 bit precision unless both the input and output bit depth are 16.
+ * with the precision of the input, not the precision of the output depth.
*
* If pm->assume_16_bit_calculations is set then even 8 bit calculations use 16
* bit precision. This only affects those of the following limits that pertain
@@ -1973,8 +2048,8 @@
* called directly.
*/
#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
-static double digitize(PNG_CONST png_modifier *pm, double value,
- int sample_depth, int do_round)
+#if DIGITIZE
+static double digitize(double value, int depth, int do_round)
{
/* 'value' is in the range 0 to 1, the result is the same value rounded to a
* multiple of the digitization factor - 8 or 16 bits depending on both the
@@ -1982,14 +2057,14 @@
* rounding and 'do_round' should be 1, if it is 0 the digitized value will
* be truncated.
*/
- PNG_CONST unsigned int digitization_factor =
- (pm->assume_16_bit_calculations || sample_depth == 16) ? 65535 : 255;
+ PNG_CONST unsigned int digitization_factor = (1U << depth) -1;
/* Limiting the range is done as a convenience to the caller - it's easier to
* do it once here than every time at the call site.
*/
if (value <= 0)
value = 0;
+
else if (value >= 1)
value = 1;
@@ -1998,31 +2073,30 @@
return floor(value)/digitization_factor;
}
#endif
+#endif /* RGB_TO_GRAY */
-#if defined(PNG_READ_GAMMA_SUPPORTED) ||\
- defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)
+#ifdef PNG_READ_GAMMA_SUPPORTED
static double abserr(PNG_CONST png_modifier *pm, int in_depth, int out_depth)
{
/* Absolute error permitted in linear values - affected by the bit depth of
* the calculations.
*/
- if (pm->assume_16_bit_calculations || (out_depth == 16 && (in_depth == 16 ||
- !pm->calculations_use_input_precision)))
+ if (pm->assume_16_bit_calculations ||
+ (pm->calculations_use_input_precision ? in_depth : out_depth) == 16)
return pm->maxabs16;
else
return pm->maxabs8;
}
-#endif
-#ifdef PNG_READ_GAMMA_SUPPORTED
static double calcerr(PNG_CONST png_modifier *pm, int in_depth, int out_depth)
{
/* Error in the linear composition arithmetic - only relevant when
* composition actually happens (0 < alpha < 1).
*/
- if (pm->assume_16_bit_calculations || (out_depth == 16 && (in_depth == 16 ||
- !pm->calculations_use_input_precision)))
+ if ((pm->calculations_use_input_precision ? in_depth : out_depth) == 16)
return pm->maxcalc16;
+ else if (pm->assume_16_bit_calculations)
+ return pm->maxcalcG;
else
return pm->maxcalc8;
}
@@ -2032,8 +2106,8 @@
/* Percentage error permitted in the linear values. Note that the specified
* value is a percentage but this routine returns a simple number.
*/
- if (pm->assume_16_bit_calculations || (out_depth == 16 && (in_depth == 16 ||
- !pm->calculations_use_input_precision)))
+ if (pm->assume_16_bit_calculations ||
+ (pm->calculations_use_input_precision ? in_depth : out_depth) == 16)
return pm->maxpc16 * .01;
else
return pm->maxpc8 * .01;
@@ -2065,8 +2139,7 @@
if (out_depth == 4)
return .90644-.5;
- if (out_depth == 16 && (in_depth == 16 ||
- !pm->calculations_use_input_precision))
+ if ((pm->calculations_use_input_precision ? in_depth : out_depth) == 16)
return pm->maxout16;
/* This is the case where the value was calculated at 8-bit precision then
@@ -2099,8 +2172,7 @@
return pm->log8;
}
- if (out_depth == 16 && (in_depth == 16 ||
- !pm->calculations_use_input_precision))
+ if ((pm->calculations_use_input_precision ? in_depth : out_depth) == 16)
{
if (pm->log16 == 0)
return 65536;
@@ -2125,8 +2197,8 @@
static int output_quantization_factor(PNG_CONST png_modifier *pm, int in_depth,
int out_depth)
{
- if (out_depth == 16 && in_depth != 16
- && pm->calculations_use_input_precision)
+ if (out_depth == 16 && in_depth != 16 &&
+ pm->calculations_use_input_precision)
return 257;
else
return 1;
@@ -2599,7 +2671,7 @@
}
/* The callback: */
-static void
+static void PNGCBAPI
modifier_read(png_structp ppIn, png_bytep pb, png_size_t st)
{
png_const_structp pp = ppIn;
@@ -2919,6 +2991,12 @@
* height of 16 rows. The width and height are stored in the FILEID and, being
* non-zero, indicate a size file.
*
+ * Because the PNG filter code is typically the largest CPU consumer within
+ * libpng itself there is a tendency to attempt to optimize it. This results in
+ * special case code which needs to be validated. To cause this to happen the
+ * 'size' images are made to use each possible filter, in so far as this is
+ * possible for smaller images.
+ *
* For palette image (colour type 3) multiple transform images are stored with
* the same bit depth to allow testing of more colour combinations -
* particularly important for testing the gamma code because libpng uses a
@@ -3077,8 +3155,10 @@
for (; i<256; ++i)
tRNS[i] = 24;
- if (j > 0)
- png_set_tRNS(pp, pi, tRNS, j, 0/*color*/);
+# ifdef PNG_WRITE_tRNS_SUPPORTED
+ if (j > 0)
+ png_set_tRNS(pp, pi, tRNS, j, 0/*color*/);
+# endif
}
}
@@ -3324,6 +3404,31 @@
*/
#define DEPTH(bd) ((png_byte)(1U << (bd)))
+/* This is just a helper for compiling on minimal systems with no write
+ * interlacing support. If there is no write interlacing we can't generate test
+ * cases with interlace:
+ */
+#ifdef PNG_WRITE_INTERLACING_SUPPORTED
+# define INTERLACE_LAST PNG_INTERLACE_LAST
+# define check_interlace_type(type) ((void)(type))
+#else
+# define INTERLACE_LAST (PNG_INTERLACE_NONE+1)
+# define png_set_interlace_handling(a) (1)
+
+static void
+check_interlace_type(int PNG_CONST interlace_type)
+{
+ if (interlace_type != PNG_INTERLACE_NONE)
+ {
+ /* This is an internal error - --interlace tests should be skipped, not
+ * attempted.
+ */
+ fprintf(stderr, "pngvalid: no interlace support\n");
+ exit(99);
+ }
+}
+#endif
+
/* Make a standardized image given a an image colour type, bit depth and
* interlace type. The standard images have a very restricted range of
* rows and heights and are used for testing transforms rather than image
@@ -3337,6 +3442,8 @@
{
context(ps, fault);
+ check_interlace_type(interlace_type);
+
Try
{
png_infop pi;
@@ -3473,12 +3580,12 @@
/* Use next_format to enumerate all the combinations we test, including
* generating multiple low bit depth palette images.
*/
- while (next_format(&colour_type, &bit_depth, &palette_number))
+ while (next_format(&colour_type, &bit_depth, &palette_number, 0))
{
int interlace_type;
for (interlace_type = PNG_INTERLACE_NONE;
- interlace_type < PNG_INTERLACE_LAST; ++interlace_type)
+ interlace_type < INTERLACE_LAST; ++interlace_type)
{
char name[FILE_NAME_SIZE];
@@ -3568,6 +3675,12 @@
{
context(ps, fault);
+ /* At present libpng does not support the write of an interlaced image unless
+ * PNG_WRITE_INTERLACING_SUPPORTED, even with do_interlace so the code here
+ * does the pixel interlace itself, so:
+ */
+ check_interlace_type(interlace_type);
+
Try
{
png_infop pi;
@@ -3634,6 +3747,9 @@
int npasses = npasses_from_interlace_type(pp, interlace_type);
png_uint_32 y;
int pass;
+# ifdef PNG_WRITE_FILTER_SUPPORTED
+ int nfilter = PNG_FILTER_VALUE_LAST;
+# endif
png_byte image[16][SIZE_ROWMAX];
/* To help consistent error detection make the parts of this buffer
@@ -3687,7 +3803,24 @@
continue;
}
- /* Only get to here if the row has some pixels in it. */
+# ifdef PNG_WRITE_FILTER_SUPPORTED
+ /* Only get to here if the row has some pixels in it, set the
+ * filters to 'all' for the very first row and thereafter to a
+ * single filter. It isn't well documented, but png_set_filter
+ * does accept a filter number (per the spec) as well as a bit
+ * mask.
+ *
+ * The apparent wackiness of decrementing nfilter rather than
+ * incrementing is so that Paeth gets used in all images bigger
+ * than 1 row - it's the tricky one.
+ */
+ png_set_filter(pp, 0/*method*/,
+ nfilter >= PNG_FILTER_VALUE_LAST ? PNG_ALL_FILTERS : nfilter);
+
+ if (nfilter-- == 0)
+ nfilter = PNG_FILTER_VALUE_LAST-1;
+# endif
+
png_write_row(pp, row);
}
}
@@ -3754,10 +3887,12 @@
width, height, 0);
make_size_image(ps, colour_type, DEPTH(bdlo), PNG_INTERLACE_NONE,
width, height, 1);
+# ifdef PNG_WRITE_INTERLACING_SUPPORTED
make_size_image(ps, colour_type, DEPTH(bdlo), PNG_INTERLACE_ADAM7,
width, height, 0);
make_size_image(ps, colour_type, DEPTH(bdlo), PNG_INTERLACE_ADAM7,
width, height, 1);
+# endif
}
}
}
@@ -3848,6 +3983,8 @@
context(ps, fault);
+ check_interlace_type(interlace_type);
+
Try
{
png_structp pp;
@@ -3951,7 +4088,7 @@
int interlace_type;
for (interlace_type = PNG_INTERLACE_NONE;
- interlace_type < PNG_INTERLACE_LAST; ++interlace_type)
+ interlace_type < INTERLACE_LAST; ++interlace_type)
{
unsigned int test;
char name[FILE_NAME_SIZE];
@@ -3972,7 +4109,7 @@
return 1; /* keep going */
}
-#endif
+#endif /* PNG_WARNINGS_SUPPORTED */
static void
perform_error_test(png_modifier *pm)
@@ -4149,6 +4286,7 @@
dp->red_sBIT = dp->blue_sBIT = dp->green_sBIT = dp->alpha_sBIT =
dp->bit_depth;
dp->interlace_type = INTERLACE_FROM_ID(id);
+ check_interlace_type(dp->interlace_type);
dp->id = id;
/* All the rest are filled in after the read_info: */
dp->w = 0;
@@ -4537,7 +4675,7 @@
standard_info_part2(dp, pp, pi, nImages);
}
-static void
+static void PNGCBAPI
standard_info(png_structp pp, png_infop pi)
{
standard_display *dp = voidcast(standard_display*,
@@ -4549,7 +4687,7 @@
standard_info_imp(dp, pp, pi, 1 /*only one image*/);
}
-static void
+static void PNGCBAPI
progressive_row(png_structp ppIn, png_bytep new_row, png_uint_32 y, int pass)
{
png_const_structp pp = ppIn;
@@ -4758,7 +4896,7 @@
static void
standard_text_validate(standard_display *dp, png_const_structp pp,
- png_infop pi)
+ png_infop pi, int check_end)
{
png_textp tp = NULL;
png_uint_32 num_text = png_get_text(pp, pi, &tp, NULL);
@@ -4766,7 +4904,13 @@
if (num_text == 2 && tp != NULL)
{
standard_check_text(pp, tp, "image name", dp->ps->current->name);
- standard_check_text(pp, tp+1, "end marker", "end");
+
+ /* This exists because prior to 1.5.18 the progressive reader left the
+ * png_struct z_stream unreset at the end of the image, so subsequent
+ * attempts to use it simply returns Z_STREAM_END.
+ */
+ if (check_end)
+ standard_check_text(pp, tp+1, "end marker", "end");
}
else
@@ -4779,7 +4923,7 @@
}
}
#else
-# define standard_text_validate(dp,pp,pi) ((void)0)
+# define standard_text_validate(dp,pp,pi,check_end) ((void)0)
#endif
static void
@@ -4857,7 +5001,7 @@
dp->ps->validated = 1;
}
-static void
+static void PNGCBAPI
standard_end(png_structp ppIn, png_infop pi)
{
png_const_structp pp = ppIn;
@@ -4869,7 +5013,8 @@
/* Validate the image - progressive reading only produces one variant for
* interlaced images.
*/
- standard_text_validate(dp, pp, pi);
+ standard_text_validate(dp, pp, pi,
+ PNG_LIBPNG_VER >= 10518/*check_end: see comments above*/);
standard_image_validate(dp, pp, 0, -1);
}
@@ -4940,7 +5085,7 @@
*/
if (!d.speed)
{
- standard_text_validate(&d, pp, pi);
+ standard_text_validate(&d, pp, pi, 1/*check_end*/);
standard_image_validate(&d, pp, 0, 1);
}
else
@@ -4971,7 +5116,7 @@
int interlace_type;
for (interlace_type = PNG_INTERLACE_NONE;
- interlace_type < PNG_INTERLACE_LAST; ++interlace_type)
+ interlace_type < INTERLACE_LAST; ++interlace_type)
{
standard_test(&pm->this, FILEID(colour_type, DEPTH(bdlo), 0/*palette*/,
interlace_type, 0, 0, 0), 0/*do_interlace*/, pm->use_update_info);
@@ -5046,6 +5191,7 @@
if (fail(pm))
return 0;
+# ifdef PNG_WRITE_INTERLACING_SUPPORTED
standard_test(&pm->this, FILEID(colour_type, DEPTH(bdlo), 0/*palette*/,
PNG_INTERLACE_ADAM7, w, h, 0), 0/*do_interlace*/,
pm->use_update_info);
@@ -5059,6 +5205,7 @@
if (fail(pm))
return 0;
+# endif
/* Now validate the interlaced read side - do_interlace true,
* in the progressive case this does actually make a difference
@@ -5071,12 +5218,14 @@
if (fail(pm))
return 0;
+# ifdef PNG_WRITE_INTERLACING_SUPPORTED
standard_test(&pm->this, FILEID(colour_type, DEPTH(bdlo), 0/*palette*/,
PNG_INTERLACE_ADAM7, w, h, 0), 1/*do_interlace*/,
pm->use_update_info);
if (fail(pm))
return 0;
+# endif
}
}
@@ -5687,7 +5836,7 @@
}
}
-static void
+static void PNGCBAPI
transform_info(png_structp pp, png_infop pi)
{
transform_info_imp(voidcast(transform_display*, png_get_progressive_ptr(pp)),
@@ -5788,12 +5937,9 @@
memset(out_palette, 0x5e, sizeof out_palette);
- /* assume-8-bit-calculations means assume that if the input has 8 bit
- * (or less) samples and the output has 16 bit samples the calculations
- * will be done with 8 bit precision, not 16.
- *
- * TODO: fix this in libpng; png_set_expand_16 should cause 16 bit
- * calculations to be used throughout.
+ /* use-input-precision means assume that if the input has 8 bit (or less)
+ * samples and the output has 16 bit samples the calculations will be done
+ * with 8 bit precision, not 16.
*/
if (in_ct == PNG_COLOR_TYPE_PALETTE || in_bd < 16)
in_sample_depth = 8;
@@ -5804,7 +5950,8 @@
!dp->pm->calculations_use_input_precision)
digitization_error = .5;
- /* Else errors are at 8 bit precision, scale .5 in 8 bits to the 16 bits:
+ /* Else calculations are at 8 bit precision, and the output actually
+ * consists of scaled 8-bit values, so scale .5 in 8 bits to the 16 bits:
*/
else
digitization_error = .5 * 257;
@@ -5896,7 +6043,7 @@
dp->this.ps->validated = 1;
}
-static void
+static void PNGCBAPI
transform_end(png_structp ppIn, png_infop pi)
{
png_const_structp pp = ppIn;
@@ -5988,7 +6135,7 @@
Catch(fault)
{
- modifier_reset((png_modifier*)fault);
+ modifier_reset(voidcast(png_modifier*,(void*)fault));
}
}
@@ -6620,10 +6767,23 @@
{
if (that->this.bit_depth == 16 || pm->assume_16_bit_calculations)
{
- /* The 16 bit case ends up producing a maximum error of about
- * +/-5 in 65535, allow for +/-8 with the given gamma.
+ /* The computations have the form:
+ *
+ * r * rc + g * gc + b * bc
+ *
+ * Each component of which is +/-1/65535 from the gamma_to_1 table
+ * lookup, resulting in a base error of +/-6. The gamma_from_1
+ * conversion adds another +/-2 in the 16-bit case and
+ * +/-(1<<(15-PNG_MAX_GAMMA_8)) in the 8-bit case.
*/
- that->pm->limit += pow(8./65535, data.gamma);
+ that->pm->limit += pow(
+# if PNG_MAX_GAMMA_8 < 14
+ (that->this.bit_depth == 16 ? 8. :
+ 6. + (1<<(15-PNG_MAX_GAMMA_8)))
+# else
+ 8.
+# endif
+ /65535, data.gamma);
}
else
@@ -6631,8 +6791,23 @@
/* Rounding to 8 bits in the linear space causes massive errors which
* will trigger the error check in transform_range_check. Fix that
* here by taking the gamma encoding into account.
+ *
+ * When DIGITIZE is set because a pre-1.7 version of libpng is being
+ * tested allow a bigger slack.
+ *
+ * NOTE: this magic number was determined by experiment to be 1.1 (when
+ * using fixed point arithmetic). There's no great merit to the value
+ * below, however it only affects the limit used for checking for
+ * internal calculation errors, not the actual limit imposed by
+ * pngvalid on the output errors.
*/
- that->pm->limit += pow(1./255, data.gamma);
+ that->pm->limit += pow(
+# if DIGITIZE
+ 1.1
+# else
+ 1.
+# endif
+ /255, data.gamma);
}
}
@@ -6641,7 +6816,7 @@
/* With no gamma correction a large error comes from the truncation of the
* calculation in the 8 bit case, allow for that here.
*/
- if (that->this.bit_depth != 16)
+ if (that->this.bit_depth != 16 && !pm->assume_16_bit_calculations)
that->pm->limit += 4E-3;
}
}
@@ -6786,9 +6961,14 @@
image_pixel_convert_PLTE(that);
/* Image now has RGB channels... */
+# if DIGITIZE
{
PNG_CONST png_modifier *pm = display->pm;
- PNG_CONST unsigned int sample_depth = that->sample_depth;
+ const unsigned int sample_depth = that->sample_depth;
+ const unsigned int calc_depth = (pm->assume_16_bit_calculations ? 16 :
+ sample_depth);
+ const unsigned int gamma_depth = (sample_depth == 16 ? 16 :
+ (pm->assume_16_bit_calculations ? PNG_MAX_GAMMA_8 : sample_depth));
int isgray;
double r, g, b;
double rlo, rhi, glo, ghi, blo, bhi, graylo, grayhi;
@@ -6804,28 +6984,28 @@
*/
r = rlo = rhi = that->redf;
rlo -= that->rede;
- rlo = digitize(pm, rlo, sample_depth, 1/*round*/);
+ rlo = digitize(rlo, calc_depth, 1/*round*/);
rhi += that->rede;
- rhi = digitize(pm, rhi, sample_depth, 1/*round*/);
+ rhi = digitize(rhi, calc_depth, 1/*round*/);
g = glo = ghi = that->greenf;
glo -= that->greene;
- glo = digitize(pm, glo, sample_depth, 1/*round*/);
+ glo = digitize(glo, calc_depth, 1/*round*/);
ghi += that->greene;
- ghi = digitize(pm, ghi, sample_depth, 1/*round*/);
+ ghi = digitize(ghi, calc_depth, 1/*round*/);
b = blo = bhi = that->bluef;
blo -= that->bluee;
- blo = digitize(pm, blo, sample_depth, 1/*round*/);
+ blo = digitize(blo, calc_depth, 1/*round*/);
bhi += that->greene;
- bhi = digitize(pm, bhi, sample_depth, 1/*round*/);
+ bhi = digitize(bhi, calc_depth, 1/*round*/);
isgray = r==g && g==b;
if (data.gamma != 1)
{
PNG_CONST double power = 1/data.gamma;
- PNG_CONST double abse = abserr(pm, sample_depth, sample_depth);
+ PNG_CONST double abse = calc_depth == 16 ? .5/65535 : .5/255;
/* 'abse' is the absolute error permitted in linear calculations. It
* is used here to capture the error permitted in the handling
@@ -6834,16 +7014,16 @@
* where the real errors are introduced.
*/
r = pow(r, power);
- rlo = digitize(pm, pow(rlo, power)-abse, sample_depth, 1);
- rhi = digitize(pm, pow(rhi, power)+abse, sample_depth, 1);
+ rlo = digitize(pow(rlo, power)-abse, calc_depth, 1);
+ rhi = digitize(pow(rhi, power)+abse, calc_depth, 1);
g = pow(g, power);
- glo = digitize(pm, pow(glo, power)-abse, sample_depth, 1);
- ghi = digitize(pm, pow(ghi, power)+abse, sample_depth, 1);
+ glo = digitize(pow(glo, power)-abse, calc_depth, 1);
+ ghi = digitize(pow(ghi, power)+abse, calc_depth, 1);
b = pow(b, power);
- blo = digitize(pm, pow(blo, power)-abse, sample_depth, 1);
- bhi = digitize(pm, pow(bhi, power)+abse, sample_depth, 1);
+ blo = digitize(pow(blo, power)-abse, calc_depth, 1);
+ bhi = digitize(pow(bhi, power)+abse, calc_depth, 1);
}
/* Now calculate the actual gray values. Although the error in the
@@ -6860,18 +7040,18 @@
b * data.blue_coefficient;
{
- PNG_CONST int do_round = data.gamma != 1 || sample_depth == 16;
+ PNG_CONST int do_round = data.gamma != 1 || calc_depth == 16;
PNG_CONST double ce = 1. / 32768;
- graylo = digitize(pm, rlo * (data.red_coefficient-ce) +
+ graylo = digitize(rlo * (data.red_coefficient-ce) +
glo * (data.green_coefficient-ce) +
- blo * (data.blue_coefficient-ce), sample_depth, do_round);
+ blo * (data.blue_coefficient-ce), gamma_depth, do_round);
if (graylo <= 0)
graylo = 0;
- grayhi = digitize(pm, rhi * (data.red_coefficient+ce) +
+ grayhi = digitize(rhi * (data.red_coefficient+ce) +
ghi * (data.green_coefficient+ce) +
- bhi * (data.blue_coefficient+ce), sample_depth, do_round);
+ bhi * (data.blue_coefficient+ce), gamma_depth, do_round);
if (grayhi >= 1)
grayhi = 1;
}
@@ -6882,8 +7062,8 @@
PNG_CONST double power = data.gamma;
gray = pow(gray, power);
- graylo = digitize(pm, pow(graylo, power), sample_depth, 1);
- grayhi = digitize(pm, pow(grayhi, power), sample_depth, 1);
+ graylo = digitize(pow(graylo, power), sample_depth, 1);
+ grayhi = digitize(pow(grayhi, power), sample_depth, 1);
}
/* Now the error can be calculated.
@@ -6901,7 +7081,7 @@
err = fabs(graylo-gray);
/* Check that this worked: */
- if (err > display->pm->limit)
+ if (err > pm->limit)
{
size_t pos = 0;
char buffer[128];
@@ -6909,12 +7089,120 @@
pos = safecat(buffer, sizeof buffer, pos, "rgb_to_gray error ");
pos = safecatd(buffer, sizeof buffer, pos, err, 6);
pos = safecat(buffer, sizeof buffer, pos, " exceeds limit ");
- pos = safecatd(buffer, sizeof buffer, pos,
- display->pm->limit, 6);
+ pos = safecatd(buffer, sizeof buffer, pos, pm->limit, 6);
png_error(pp, buffer);
}
}
}
+# else /* DIGITIZE */
+ {
+ double r = that->redf;
+ double re = that->rede;
+ double g = that->greenf;
+ double ge = that->greene;
+ double b = that->bluef;
+ double be = that->bluee;
+
+ /* The true gray case involves no math. */
+ if (r == g && r == b)
+ {
+ gray = r;
+ err = re;
+ if (err < ge) err = ge;
+ if (err < be) err = be;
+ }
+
+ else if (data.gamma == 1)
+ {
+ /* There is no need to do the conversions to and from linear space,
+ * so the calculation should be a lot more accurate. There is a
+ * built in 1/32768 error in the coefficients because they only have
+ * 15 bits and are adjusted to make sure they add up to 32768, so
+ * the result may have an additional error up to 1/32768. (Note
+ * that adding the 1/32768 here avoids needing to increase the
+ * global error limits to take this into account.)
+ */
+ gray = r * data.red_coefficient + g * data.green_coefficient +
+ b * data.blue_coefficient;
+ err = re * data.red_coefficient + ge * data.green_coefficient +
+ be * data.blue_coefficient + 1./32768 + gray * 5 * DBL_EPSILON;
+ }
+
+ else
+ {
+ /* The calculation happens in linear space, and this produces much
+ * wider errors in the encoded space. These are handled here by
+ * factoring the errors in to the calculation. There are two table
+ * lookups in the calculation and each introduces a quantization
+ * error defined by the table size.
+ */
+ PNG_CONST png_modifier *pm = display->pm;
+ double in_qe = (that->sample_depth > 8 ? .5/65535 : .5/255);
+ double out_qe = (that->sample_depth > 8 ? .5/65535 :
+ (pm->assume_16_bit_calculations ? .5/(1<<PNG_MAX_GAMMA_8) :
+ .5/255));
+ double rhi, ghi, bhi, grayhi;
+ double g1 = 1/data.gamma;
+
+ rhi = r + re + in_qe; if (rhi > 1) rhi = 1;
+ r -= re + in_qe; if (r < 0) r = 0;
+ ghi = g + ge + in_qe; if (ghi > 1) ghi = 1;
+ g -= ge + in_qe; if (g < 0) g = 0;
+ bhi = b + be + in_qe; if (bhi > 1) bhi = 1;
+ b -= be + in_qe; if (b < 0) b = 0;
+
+ r = pow(r, g1)*(1-DBL_EPSILON); rhi = pow(rhi, g1)*(1+DBL_EPSILON);
+ g = pow(g, g1)*(1-DBL_EPSILON); ghi = pow(ghi, g1)*(1+DBL_EPSILON);
+ b = pow(b, g1)*(1-DBL_EPSILON); bhi = pow(bhi, g1)*(1+DBL_EPSILON);
+
+ /* Work out the lower and upper bounds for the gray value in the
+ * encoded space, then work out an average and error. Remove the
+ * previously added input quantization error at this point.
+ */
+ gray = r * data.red_coefficient + g * data.green_coefficient +
+ b * data.blue_coefficient - 1./32768 - out_qe;
+ if (gray <= 0)
+ gray = 0;
+ else
+ {
+ gray *= (1 - 6 * DBL_EPSILON);
+ gray = pow(gray, data.gamma) * (1-DBL_EPSILON);
+ }
+
+ grayhi = rhi * data.red_coefficient + ghi * data.green_coefficient +
+ bhi * data.blue_coefficient + 1./32768 + out_qe;
+ grayhi *= (1 + 6 * DBL_EPSILON);
+ if (grayhi >= 1)
+ grayhi = 1;
+ else
+ grayhi = pow(grayhi, data.gamma) * (1+DBL_EPSILON);
+
+ err = (grayhi - gray) / 2;
+ gray = (grayhi + gray) / 2;
+
+ if (err <= in_qe)
+ err = gray * DBL_EPSILON;
+
+ else
+ err -= in_qe;
+
+ /* Validate that the error is within limits (this has caused
+ * problems before, it's much easier to detect them here.)
+ */
+ if (err > pm->limit)
+ {
+ size_t pos = 0;
+ char buffer[128];
+
+ pos = safecat(buffer, sizeof buffer, pos, "rgb_to_gray error ");
+ pos = safecatd(buffer, sizeof buffer, pos, err, 6);
+ pos = safecat(buffer, sizeof buffer, pos, " exceeds limit ");
+ pos = safecatd(buffer, sizeof buffer, pos, pm->limit, 6);
+ png_error(pp, buffer);
+ }
+ }
+ }
+# endif /* !DIGITIZE */
that->bluef = that->greenf = that->redf = gray;
that->bluee = that->greene = that->rede = err;
@@ -6963,7 +7251,7 @@
* int background_gamma_code, int need_expand,
* png_fixed_point background_gamma)
*
- * As with rgb_to_gray this ignores the gamma (at present.)
+ * This ignores the gamma (at present.)
*/
#define data ITDATA(background)
static image_pixel data;
@@ -6974,6 +7262,7 @@
{
png_byte colour_type, bit_depth;
png_byte random_bytes[8]; /* 8 bytes - 64 bits - the biggest pixel */
+ int expand;
png_color_16 back;
/* We need a background colour, because we don't know exactly what transforms
@@ -6991,10 +7280,14 @@
{
colour_type = PNG_COLOR_TYPE_RGB;
bit_depth = 8;
+ expand = 0; /* passing in an RGB not a pixel index */
}
else
+ {
bit_depth = that->this.bit_depth;
+ expand = 1;
+ }
image_pixel_init(&data, random_bytes, colour_type,
bit_depth, 0/*x*/, 0/*unused: palette*/);
@@ -7015,11 +7308,9 @@
back.gray = (png_uint_16)data.red;
# ifdef PNG_FLOATING_POINT_SUPPORTED
- png_set_background(pp, &back, PNG_BACKGROUND_GAMMA_FILE, 1/*need expand*/,
- 0);
+ png_set_background(pp, &back, PNG_BACKGROUND_GAMMA_FILE, expand, 0);
# else
- png_set_background_fixed(pp, &back, PNG_BACKGROUND_GAMMA_FILE,
- 1/*need expand*/, 0);
+ png_set_background_fixed(pp, &back, PNG_BACKGROUND_GAMMA_FILE, expand, 0);
# endif
this->next->set(this->next, that, pp, pi);
@@ -7122,7 +7413,7 @@
{
fprintf(stderr, "pngvalid: --transform-enable=%s: unknown transform\n",
name);
- exit(1);
+ exit(99);
}
}
@@ -7144,7 +7435,7 @@
fprintf(stderr, "pngvalid: --transform-disable=%s: unknown transform\n",
name);
- exit(1);
+ exit(99);
}
static void
@@ -7351,7 +7642,7 @@
png_byte bit_depth = 0;
unsigned int palette_number = 0;
- while (next_format(&colour_type, &bit_depth, &palette_number))
+ while (next_format(&colour_type, &bit_depth, &palette_number, 0))
{
png_uint_32 counter = 0;
size_t base_pos;
@@ -7569,7 +7860,7 @@
standard_info_part2(&dp->this, pp, pi, 1 /*images*/);
}
-static void
+static void PNGCBAPI
gamma_info(png_structp pp, png_infop pi)
{
gamma_info_imp(voidcast(gamma_display*, png_get_progressive_ptr(pp)), pp,
@@ -8036,14 +8327,25 @@
* passed. Don't do these additional tests here - just log the
* original [es_lo..es_hi] values.
*/
- if (pass == 0 && vi->use_input_precision)
+ if (pass == 0 && vi->use_input_precision && vi->dp->sbit)
{
/* Ok, something is wrong - this actually happens in current libpng
* 16-to-8 processing. Assume that the input value (id, adjusted
* for sbit) can be anywhere between value-.5 and value+.5 - quite a
* large range if sbit is low.
+ *
+ * NOTE: at present because the libpng gamma table stuff has been
+ * changed to use a rounding algorithm to correct errors in 8-bit
+ * calculations the precise sbit calculation (a shift) has been
+ * lost. This can result in up to a +/-1 error in the presence of
+ * an sbit less than the bit depth.
*/
- double tmp = (isbit - .5)/sbit_max;
+# if PNG_LIBPNG_VER < 10700
+# define SBIT_ERROR .5
+# else
+# define SBIT_ERROR 1.
+# endif
+ double tmp = (isbit - SBIT_ERROR)/sbit_max;
if (tmp <= 0)
tmp = 0;
@@ -8062,10 +8364,10 @@
if (is_lo < 0)
is_lo = 0;
- tmp = (isbit + .5)/sbit_max;
+ tmp = (isbit + SBIT_ERROR)/sbit_max;
- if (tmp <= 0)
- tmp = 0;
+ if (tmp >= 1)
+ tmp = 1;
else if (alpha >= 0 && vi->file_inverse > 0 && tmp < 1)
tmp = pow(tmp, vi->file_inverse);
@@ -8382,7 +8684,7 @@
* Because there is limited precision in the input it is arguable that
* an acceptable result is any valid result from input-.5 to input+.5.
* The basic tests below do not do this, however if 'use_input_precision'
- * is set a subsequent test is performed below.
+ * is set a subsequent test is performed above.
*/
PNG_CONST unsigned int samples_per_pixel = (out_ct & 2U) ? 3U : 1U;
int processing;
@@ -8522,7 +8824,7 @@
dp->this.ps->validated = 1;
}
-static void
+static void PNGCBAPI
gamma_end(png_structp ppIn, png_infop pi)
{
png_const_structp pp = ppIn;
@@ -8692,7 +8994,7 @@
}
Catch(fault)
- modifier_reset((png_modifier*)fault);
+ modifier_reset(voidcast(png_modifier*,(void*)fault));
}
static void gamma_threshold_test(png_modifier *pm, png_byte colour_type,
@@ -8724,7 +9026,7 @@
* fact this test is somewhat excessive since libpng doesn't make this
* decision based on colour type or bit depth!
*/
- while (next_format(&colour_type, &bit_depth, &palette_number))
+ while (next_format(&colour_type, &bit_depth, &palette_number, 1/*gamma*/))
if (palette_number == 0)
{
double test_gamma = 1.0;
@@ -8785,7 +9087,7 @@
png_byte bit_depth = 0;
unsigned int palette_number = 0;
- while (next_format(&colour_type, &bit_depth, &palette_number))
+ while (next_format(&colour_type, &bit_depth, &palette_number, 1/*gamma*/))
{
unsigned int i, j;
@@ -8815,7 +9117,7 @@
png_byte colour_type = 0, bit_depth = 0;
unsigned int npalette = 0;
- while (next_format(&colour_type, &bit_depth, &npalette))
+ while (next_format(&colour_type, &bit_depth, &npalette, 1/*gamma*/))
if ((colour_type & PNG_COLOR_MASK_ALPHA) == 0 &&
((colour_type == 3 && sbit < 8) ||
(colour_type != 3 && sbit < bit_depth)))
@@ -8850,6 +9152,7 @@
# ifndef PNG_MAX_GAMMA_8
# define PNG_MAX_GAMMA_8 11
# endif
+# define SBIT_16_TO_8 PNG_MAX_GAMMA_8
/* Include the alpha cases here. Note that sbit matches the internal value
* used by the library - otherwise we will get spurious errors from the
* internal sbit style approximation.
@@ -8867,28 +9170,28 @@
fabs(pm->gammas[j]/pm->gammas[i]-1) >= PNG_GAMMA_THRESHOLD)
{
gamma_transform_test(pm, 0, 16, 0, pm->interlace_type,
- 1/pm->gammas[i], pm->gammas[j], PNG_MAX_GAMMA_8,
+ 1/pm->gammas[i], pm->gammas[j], SBIT_16_TO_8,
pm->use_input_precision_16to8, 1 /*scale16*/);
if (fail(pm))
return;
gamma_transform_test(pm, 2, 16, 0, pm->interlace_type,
- 1/pm->gammas[i], pm->gammas[j], PNG_MAX_GAMMA_8,
+ 1/pm->gammas[i], pm->gammas[j], SBIT_16_TO_8,
pm->use_input_precision_16to8, 1 /*scale16*/);
if (fail(pm))
return;
gamma_transform_test(pm, 4, 16, 0, pm->interlace_type,
- 1/pm->gammas[i], pm->gammas[j], PNG_MAX_GAMMA_8,
+ 1/pm->gammas[i], pm->gammas[j], SBIT_16_TO_8,
pm->use_input_precision_16to8, 1 /*scale16*/);
if (fail(pm))
return;
gamma_transform_test(pm, 6, 16, 0, pm->interlace_type,
- 1/pm->gammas[i], pm->gammas[j], PNG_MAX_GAMMA_8,
+ 1/pm->gammas[i], pm->gammas[j], SBIT_16_TO_8,
pm->use_input_precision_16to8, 1 /*scale16*/);
if (fail(pm))
@@ -8970,6 +9273,28 @@
r = random_32();
background.blue = (png_uint_16)r;
background.gray = (png_uint_16)(r >> 16);
+
+ /* In earlier libpng versions, those where DIGITIZE is set, any background
+ * gamma correction in the expand16 case was done using 8-bit gamma
+ * correction tables, resulting in larger errors. To cope with those
+ * cases use a 16-bit background value which will handle this gamma
+ * correction.
+ */
+# if DIGITIZE
+ if (expand_16 && (do_background == PNG_BACKGROUND_GAMMA_UNIQUE ||
+ do_background == PNG_BACKGROUND_GAMMA_FILE) &&
+ fabs(bg*screen_gamma-1) > PNG_GAMMA_THRESHOLD)
+ {
+ /* The background values will be looked up in an 8-bit table to do
+ * the gamma correction, so only select values which are an exact
+ * match for the 8-bit table entries:
+ */
+ background.red = (png_uint_16)((background.red >> 8) * 257);
+ background.green = (png_uint_16)((background.green >> 8) * 257);
+ background.blue = (png_uint_16)((background.blue >> 8) * 257);
+ background.gray = (png_uint_16)((background.gray >> 8) * 257);
+ }
+# endif
}
else /* 8 bit colors */
@@ -9034,7 +9359,7 @@
/* Skip the non-alpha cases - there is no setting of a transparency colour at
* present.
*/
- while (next_format(&colour_type, &bit_depth, &palette_number))
+ while (next_format(&colour_type, &bit_depth, &palette_number, 1/*gamma*/))
if ((colour_type & PNG_COLOR_MASK_ALPHA) != 0)
{
unsigned int i, j;
@@ -9056,31 +9381,46 @@
static void
init_gamma_errors(png_modifier *pm)
{
- pm->error_gray_2 = pm->error_gray_4 = pm->error_gray_8 = 0;
- pm->error_color_8 = 0;
- pm->error_indexed = 0;
- pm->error_gray_16 = pm->error_color_16 = 0;
+ /* Use -1 to catch tests that were not actually run */
+ pm->error_gray_2 = pm->error_gray_4 = pm->error_gray_8 = -1.;
+ pm->error_color_8 = -1.;
+ pm->error_indexed = -1.;
+ pm->error_gray_16 = pm->error_color_16 = -1.;
}
static void
-summarize_gamma_errors(png_modifier *pm, png_const_charp who, int low_bit_depth)
+print_one(const char *leader, double err)
{
+ if (err != -1.)
+ printf(" %s %.5f\n", leader, err);
+}
+
+static void
+summarize_gamma_errors(png_modifier *pm, png_const_charp who, int low_bit_depth,
+ int indexed)
+{
+ fflush(stderr);
+
if (who)
- printf("Gamma correction with %s:\n", who);
+ printf("\nGamma correction with %s:\n", who);
+
+ else
+ printf("\nBasic gamma correction:\n");
if (low_bit_depth)
{
- printf(" 2 bit gray: %.5f\n", pm->error_gray_2);
- printf(" 4 bit gray: %.5f\n", pm->error_gray_4);
- printf(" 8 bit gray: %.5f\n", pm->error_gray_8);
- printf(" 8 bit color: %.5f\n", pm->error_color_8);
- printf(" indexed: %.5f\n", pm->error_indexed);
+ print_one(" 2 bit gray: ", pm->error_gray_2);
+ print_one(" 4 bit gray: ", pm->error_gray_4);
+ print_one(" 8 bit gray: ", pm->error_gray_8);
+ print_one(" 8 bit color:", pm->error_color_8);
+ if (indexed)
+ print_one(" indexed: ", pm->error_indexed);
}
-#ifdef DO_16BIT
- printf(" 16 bit gray: %.5f\n", pm->error_gray_16);
- printf(" 16 bit color: %.5f\n", pm->error_color_16);
-#endif
+ print_one("16 bit gray: ", pm->error_gray_16);
+ print_one("16 bit color:", pm->error_color_16);
+
+ fflush(stdout);
}
static void
@@ -9106,18 +9446,9 @@
/* Now some real transforms. */
if (pm->test_gamma_transform)
{
- init_gamma_errors(pm);
- /*TODO: remove this. Necessary because the current libpng
- * implementation works in 8 bits:
- */
- if (pm->test_gamma_expand16)
- pm->calculations_use_input_precision = 1;
- perform_gamma_transform_tests(pm);
- if (!calculations_use_input_precision)
- pm->calculations_use_input_precision = 0;
-
if (summary)
{
+ fflush(stderr);
printf("Gamma correction error summary\n\n");
printf("The printed value is the maximum error in the pixel values\n");
printf("calculated by the libpng gamma correction code. The error\n");
@@ -9129,10 +9460,25 @@
printf("less than 1 for formats with fewer than 8 bits and a small\n");
printf("number (typically less than 5) for the 16 bit formats.\n");
printf("For performance reasons the value for 16 bit formats\n");
- printf("increases when the image file includes an sBIT chunk.\n\n");
-
- summarize_gamma_errors(pm, 0/*who*/, 1);
+ printf("increases when the image file includes an sBIT chunk.\n");
+ fflush(stdout);
}
+
+ init_gamma_errors(pm);
+ /*TODO: remove this. Necessary because the current libpng
+ * implementation works in 8 bits:
+ */
+ if (pm->test_gamma_expand16)
+ pm->calculations_use_input_precision = 1;
+ perform_gamma_transform_tests(pm);
+ if (!calculations_use_input_precision)
+ pm->calculations_use_input_precision = 0;
+
+ if (summary)
+ summarize_gamma_errors(pm, 0/*who*/, 1/*low bit depth*/, 1/*indexed*/);
+
+ if (fail(pm))
+ return;
}
/* The sbit tests produce much larger errors: */
@@ -9142,7 +9488,10 @@
perform_gamma_sbit_tests(pm);
if (summary)
- summarize_gamma_errors(pm, "sBIT", pm->sbitlow < 8U);
+ summarize_gamma_errors(pm, "sBIT", pm->sbitlow < 8U, 1/*indexed*/);
+
+ if (fail(pm))
+ return;
}
#ifdef DO_16BIT /* Should be READ_16BIT_SUPPORTED */
@@ -9154,10 +9503,15 @@
if (summary)
{
- printf("Gamma correction with 16 to 8 bit reduction:\n");
+ fflush(stderr);
+ printf("\nGamma correction with 16 to 8 bit reduction:\n");
printf(" 16 bit gray: %.5f\n", pm->error_gray_16);
printf(" 16 bit color: %.5f\n", pm->error_color_16);
+ fflush(stdout);
}
+
+ if (fail(pm))
+ return;
}
#endif
@@ -9181,7 +9535,10 @@
pm->maxout8 = maxout8;
if (summary)
- summarize_gamma_errors(pm, "background", 1);
+ summarize_gamma_errors(pm, "background", 1, 0/*indexed*/);
+
+ if (fail(pm))
+ return;
}
#endif
@@ -9206,7 +9563,10 @@
pm->calculations_use_input_precision = 0;
if (summary)
- summarize_gamma_errors(pm, "alpha mode", 1);
+ summarize_gamma_errors(pm, "alpha mode", 1, 0/*indexed*/);
+
+ if (fail(pm))
+ return;
}
#endif
}
@@ -9448,7 +9808,7 @@
if (m != f)
{
fprintf(stderr, "PNG_PASS_START_ROW(%d) = %u != %x\n", pass, m, f);
- exit(1);
+ exit(99);
}
m = PNG_PASS_START_COL(pass);
@@ -9456,7 +9816,7 @@
if (m != f)
{
fprintf(stderr, "PNG_PASS_START_COL(%d) = %u != %x\n", pass, m, f);
- exit(1);
+ exit(99);
}
m = PNG_PASS_ROW_SHIFT(pass);
@@ -9464,7 +9824,7 @@
if (m != f)
{
fprintf(stderr, "PNG_PASS_ROW_SHIFT(%d) = %u != %x\n", pass, m, f);
- exit(1);
+ exit(99);
}
m = PNG_PASS_COL_SHIFT(pass);
@@ -9472,7 +9832,7 @@
if (m != f)
{
fprintf(stderr, "PNG_PASS_COL_SHIFT(%d) = %u != %x\n", pass, m, f);
- exit(1);
+ exit(99);
}
/* Macros that depend on the image or sub-image height too:
@@ -9493,7 +9853,7 @@
{
fprintf(stderr, "PNG_ROW_FROM_PASS_ROW(%u, %d) = %u != %x\n",
v, pass, m, f);
- exit(1);
+ exit(99);
}
m = PNG_COL_FROM_PASS_COL(v, pass);
@@ -9502,7 +9862,7 @@
{
fprintf(stderr, "PNG_COL_FROM_PASS_COL(%u, %d) = %u != %x\n",
v, pass, m, f);
- exit(1);
+ exit(99);
}
m = PNG_ROW_IN_INTERLACE_PASS(v, pass);
@@ -9511,7 +9871,7 @@
{
fprintf(stderr, "PNG_ROW_IN_INTERLACE_PASS(%u, %d) = %u != %x\n",
v, pass, m, f);
- exit(1);
+ exit(99);
}
m = PNG_COL_IN_INTERLACE_PASS(v, pass);
@@ -9520,7 +9880,7 @@
{
fprintf(stderr, "PNG_COL_IN_INTERLACE_PASS(%u, %d) = %u != %x\n",
v, pass, m, f);
- exit(1);
+ exit(99);
}
/* Then the base 1 stuff: */
@@ -9531,7 +9891,7 @@
{
fprintf(stderr, "PNG_PASS_ROWS(%u, %d) = %u != %x\n",
v, pass, m, f);
- exit(1);
+ exit(99);
}
m = PNG_PASS_COLS(v, pass);
@@ -9540,7 +9900,7 @@
{
fprintf(stderr, "PNG_PASS_COLS(%u, %d) = %u != %x\n",
v, pass, m, f);
- exit(1);
+ exit(99);
}
/* Move to the next v - the stepping algorithm starts skipping
@@ -9714,6 +10074,19 @@
/* Default to error on warning: */
pm.this.treat_warnings_as_errors = 1;
+ /* Default assume_16_bit_calculations appropriately; this tells the checking
+ * code that 16-bit arithmetic is used for 8-bit samples when it would make a
+ * difference.
+ */
+ pm.assume_16_bit_calculations = PNG_LIBPNG_VER >= 10700;
+
+ /* Currently 16 bit expansion happens at the end of the pipeline, so the
+ * calculations are done in the input bit depth not the output.
+ *
+ * TODO: fix this
+ */
+ pm.calculations_use_input_precision = 1U;
+
/* Store the test gammas */
pm.gammas = gammas;
pm.ngammas = (sizeof gammas) / (sizeof gammas[0]);
@@ -9724,13 +10097,16 @@
pm.nencodings = (sizeof test_encodings) / (sizeof test_encodings[0]);
pm.sbitlow = 8U; /* because libpng doesn't do sBIT below 8! */
+
/* The following allows results to pass if they correspond to anything in the
* transformed range [input-.5,input+.5]; this is is required because of the
- * way libpng treates the 16_TO_8 flag when building the gamma tables.
+ * way libpng treates the 16_TO_8 flag when building the gamma tables in
+ * releases up to 1.6.0.
*
* TODO: review this
*/
pm.use_input_precision_16to8 = 1U;
+ pm.use_input_precision_sbit = 1U; /* because libpng now rounds sBIT */
/* Some default values (set the behavior for 'make check' here).
* These values simply control the maximum error permitted in the gamma
@@ -9741,11 +10117,12 @@
*/
pm.maxout8 = .1; /* Arithmetic error in *encoded* value */
pm.maxabs8 = .00005; /* 1/20000 */
- pm.maxcalc8 = .004; /* +/-1 in 8 bits for compose errors */
+ pm.maxcalc8 = 1./255; /* +/-1 in 8 bits for compose errors */
pm.maxpc8 = .499; /* I.e., .499% fractional error */
pm.maxout16 = .499; /* Error in *encoded* value */
pm.maxabs16 = .00005;/* 1/20000 */
- pm.maxcalc16 =.000015;/* +/-1 in 16 bits for compose errors */
+ pm.maxcalc16 =1./65535;/* +/-1 in 16 bits for compose errors */
+ pm.maxcalcG = 1./((1<<PNG_MAX_GAMMA_8)-1);
/* NOTE: this is a reasonable perceptual limit. We assume that humans can
* perceive light level differences of 1% over a 100:1 range, so we need to
@@ -9889,16 +10266,26 @@
++pm.use_update_info; /* Can call multiple times */
else if (strcmp(*argv, "--interlace") == 0)
- pm.interlace_type = PNG_INTERLACE_ADAM7;
+ {
+# ifdef PNG_WRITE_INTERLACING_SUPPORTED
+ pm.interlace_type = PNG_INTERLACE_ADAM7;
+# else
+ fprintf(stderr, "pngvalid: no write interlace support\n");
+ return SKIP;
+# endif
+ }
else if (strcmp(*argv, "--use-input-precision") == 0)
- pm.use_input_precision = 1;
+ pm.use_input_precision = 1U;
+
+ else if (strcmp(*argv, "--use-calculation-precision") == 0)
+ pm.use_input_precision = 0;
else if (strcmp(*argv, "--calculations-use-input-precision") == 0)
- pm.calculations_use_input_precision = 1;
+ pm.calculations_use_input_precision = 1U;
else if (strcmp(*argv, "--assume-16-bit-calculations") == 0)
- pm.assume_16_bit_calculations = 1;
+ pm.assume_16_bit_calculations = 1U;
else if (strcmp(*argv, "--calculations-follow-bit-depth") == 0)
pm.calculations_use_input_precision =
@@ -9944,7 +10331,7 @@
else
{
fprintf(stderr, "pngvalid: %s: unknown 'max' option\n", *argv);
- exit(1);
+ exit(99);
}
catmore = 1;
@@ -9956,10 +10343,53 @@
else if (strcmp(*argv, "--log16") == 0)
--argc, pm.log16 = atof(*++argv), catmore = 1;
+#ifdef PNG_SET_OPTION_SUPPORTED
+ else if (strncmp(*argv, "--option=", 9) == 0)
+ {
+ /* Syntax of the argument is <option>:{on|off} */
+ const char *arg = 9+*argv;
+ unsigned char option=0, setting=0;
+
+#ifdef PNG_ARM_NEON_API_SUPPORTED
+ if (strncmp(arg, "arm-neon:", 9) == 0)
+ option = PNG_ARM_NEON, arg += 9;
+
+ else
+#endif
+#ifdef PNG_MAXIMUM_INFLATE_WINDOW
+ if (strncmp(arg, "max-inflate-window:", 19) == 0)
+ option = PNG_MAXIMUM_INFLATE_WINDOW, arg += 19;
+
+ else
+#endif
+ {
+ fprintf(stderr, "pngvalid: %s: %s: unknown option\n", *argv, arg);
+ exit(99);
+ }
+
+ if (strcmp(arg, "off") == 0)
+ setting = PNG_OPTION_OFF;
+
+ else if (strcmp(arg, "on") == 0)
+ setting = PNG_OPTION_ON;
+
+ else
+ {
+ fprintf(stderr,
+ "pngvalid: %s: %s: unknown setting (use 'on' or 'off')\n",
+ *argv, arg);
+ exit(99);
+ }
+
+ pm.this.options[pm.this.noptions].option = option;
+ pm.this.options[pm.this.noptions++].setting = setting;
+ }
+#endif /* PNG_SET_OPTION_SUPPORTED */
+
else
{
fprintf(stderr, "pngvalid: %s: unknown argument\n", *argv);
- exit(1);
+ exit(99);
}
if (catmore) /* consumed an extra *argv */
@@ -10133,13 +10563,17 @@
}
}
+ /* This is required because some very minimal configurations do not use it:
+ */
+ UNUSED(fail)
return 0;
}
-#else /* write not supported */
+#else /* write or low level APIs not supported */
int main(void)
{
- fprintf(stderr, "pngvalid: no write support in libpng, all tests skipped\n");
+ fprintf(stderr,
+ "pngvalid: no low level write support in libpng, all tests skipped\n");
/* So the test is skipped: */
- return 77;
+ return SKIP;
}
#endif
diff --git a/contrib/pngminim/decoder/makefile b/contrib/pngminim/decoder/makefile
index 25e2ee0..4acf3c1 100644
--- a/contrib/pngminim/decoder/makefile
+++ b/contrib/pngminim/decoder/makefile
@@ -15,7 +15,7 @@
COPY=cp
CPPFLAGS=-I. -DPNG_USER_CONFIG -DNO_GZCOMPRESS -DZ_SOLO -DNO_GZIP
-CFLAGS=-O1
+CFLAGS=-O1 -Wall
C=.c
O=.o
@@ -82,7 +82,7 @@
# note: dependencies do not work on implicit rule lines
.c$(O):
- $(CC) $(CPPFLAGS) -c $(CFLAGS) $<
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
# dependencies
@@ -100,12 +100,12 @@
$(PNGSRC)/scripts/pnglibconf.dfa \
$(PNGSRC)/scripts/options.awk pngusr.h pngusr.dfa
$(RM) pnglibconf.h pnglibconf.dfn
- $(MAKE) $(MAKEFLAGS) -f $(PNGSRC)/scripts/pnglibconf.mak\
+ $(MAKE) -f $(PNGSRC)/scripts/pnglibconf.mak $(MAKEFLAGS)\
srcdir=$(PNGSRC) CPPFLAGS="-DPNG_USER_CONFIG -I."\
DFA_XTRA="pngusr.dfa" $@
clean:
- $(MAKE) $(MAKEFLAGS) -f $(PNGSRC)/scripts/pnglibconf.mak\
+ $(MAKE) -f $(PNGSRC)/scripts/pnglibconf.mak $(MAKEFLAGS)\
srcdir=$(PNGSRC) clean
$(RM) pngm2pnm$(O)
$(RM) pngm2pnm$(E)
diff --git a/contrib/pngminim/decoder/pngusr.h b/contrib/pngminim/decoder/pngusr.h
index 841da0c..cbd7890 100644
--- a/contrib/pngminim/decoder/pngusr.h
+++ b/contrib/pngminim/decoder/pngusr.h
@@ -18,7 +18,6 @@
* affect the API (so are not recorded in pnglibconf.h)
*/
-#define PNG_NO_WARNINGS
#define PNG_ALIGN_TYPE PNG_ALIGN_NONE
#endif /* MINRDPNGCONF_H */
diff --git a/contrib/pngminim/encoder/makefile b/contrib/pngminim/encoder/makefile
index e2ccbbc..41b205c 100644
--- a/contrib/pngminim/encoder/makefile
+++ b/contrib/pngminim/encoder/makefile
@@ -15,7 +15,7 @@
COPY=cp
CPPFLAGS=-I. -DPNG_USER_CONFIG -DNO_GZCOMPRESS -DZ_SOLO -DNO_GZIP
-CFLAGS=-O1
+CFLAGS=-O1 -Wall
C=.c
O=.o
@@ -81,7 +81,7 @@
# implicit make rules -------------------------------------------------------
.c$(O):
- $(CC) $(CPPFLAGS) -c $(CFLAGS) $<
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
# dependencies
@@ -99,12 +99,12 @@
$(PNGSRC)/scripts/pnglibconf.dfa \
$(PNGSRC)/scripts/options.awk pngusr.h pngusr.dfa
$(RM) pnglibconf.h pnglibconf.dfn
- $(MAKE) $(MAKEFLAGS) -f $(PNGSRC)/scripts/pnglibconf.mak\
+ $(MAKE) -f $(PNGSRC)/scripts/pnglibconf.mak $(MAKEFLAGS)\
srcdir=$(PNGSRC) CPPFLAGS="-DPNG_USER_CONFIG -I."\
DFA_XTRA="pngusr.dfa" $@
clean:
- $(MAKE) $(MAKEFLAGS) -f $(PNGSRC)/scripts/pnglibconf.mak\
+ $(MAKE) -f $(PNGSRC)/scripts/pnglibconf.mak $(MAKEFLAGS)\
srcdir=$(PNGSRC) clean
$(RM) pnm2pngm$(O)
$(RM) pnm2pngm$(E)
diff --git a/contrib/pngminim/encoder/pngusr.dfa b/contrib/pngminim/encoder/pngusr.dfa
index 334d5e3..1fc24f3 100644
--- a/contrib/pngminim/encoder/pngusr.dfa
+++ b/contrib/pngminim/encoder/pngusr.dfa
@@ -13,9 +13,10 @@
# Switch on the write code - this makes a minimalist encoder
option WRITE on
-# These 2 options are required if you need to read PGM (P1 or P4) PGM files.
-# option WRITE_INVERT on
-# option WRITE_PACK on
+
+# These 2 options are required if you need to read PBM (P1 or P4) files.
+option WRITE_INVERT on
+option WRITE_PACK on
# You must choose fixed or floating point arithmetic:
# option FLOATING_POINT on
diff --git a/contrib/pngminim/encoder/pngusr.h b/contrib/pngminim/encoder/pngusr.h
index a050ef3..997d44f 100644
--- a/contrib/pngminim/encoder/pngusr.h
+++ b/contrib/pngminim/encoder/pngusr.h
@@ -18,7 +18,6 @@
* affect the API (so are not recorded in pnglibconf.h)
*/
-#define PNG_NO_WARNINGS
#define PNG_ALIGN_TYPE PNG_ALIGN_NONE
#endif /* MINWRPNGCONF_H */
diff --git a/contrib/pngminim/preader/makefile b/contrib/pngminim/preader/makefile
index e9bb303..b625199 100644
--- a/contrib/pngminim/preader/makefile
+++ b/contrib/pngminim/preader/makefile
@@ -31,7 +31,7 @@
LIBS = $(XLIB) -lm #platforms that need libm
CPPFLAGS=-I. $(XINC) -DPNG_USER_CONFIG -DNO_GZCOMPRESS -DZ_SOLO -DNO_GZIP
-CFLAGS=-O1
+CFLAGS=-O1 -Wall
C=.c
O=.o
@@ -97,7 +97,7 @@
# implicit make rules -------------------------------------------------------
.c$(O):
- $(CC) $(CPPFLAGS) -c $(CFLAGS) $<
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
# dependencies
@@ -115,12 +115,12 @@
$(PNGSRC)/scripts/pnglibconf.dfa \
$(PNGSRC)/scripts/options.awk pngusr.h pngusr.dfa
$(RM) pnglibconf.h pnglibconf.dfn
- $(MAKE) $(MAKEFLAGS) -f $(PNGSRC)/scripts/pnglibconf.mak\
+ $(MAKE) -f $(PNGSRC)/scripts/pnglibconf.mak $(MAKEFLAGS)\
srcdir=$(PNGSRC) CPPFLAGS="-DPNG_USER_CONFIG -I."\
DFA_XTRA="pngusr.dfa" $@
clean:
- $(MAKE) $(MAKEFLAGS) -f $(PNGSRC)/scripts/pnglibconf.mak\
+ $(MAKE) -f $(PNGSRC)/scripts/pnglibconf.mak $(MAKEFLAGS)\
srcdir=$(PNGSRC) clean
$(RM) rpng2-x$(O)
$(RM) rpng2-x$(E)
diff --git a/contrib/pngminim/preader/pngusr.h b/contrib/pngminim/preader/pngusr.h
index d848634..80db3bb 100644
--- a/contrib/pngminim/preader/pngusr.h
+++ b/contrib/pngminim/preader/pngusr.h
@@ -18,7 +18,6 @@
* affect the API (so are not recorded in pnglibconf.h)
*/
-#define PNG_NO_WARNINGS
#define PNG_ALIGN_TYPE PNG_ALIGN_NONE
#endif /* MINPRDPNGCONF_H */
diff --git a/contrib/pngminus/makefile.std b/contrib/pngminus/makefile.std
index 30317b7..14e25cd 100644
--- a/contrib/pngminus/makefile.std
+++ b/contrib/pngminus/makefile.std
@@ -23,7 +23,8 @@
ZLIB = -L../../../zlib -lz
ZLIBS = ../../../zlib/libz.a
-CFLAGS=$(PNGINC) $(ZINC)
+CPPFLAGS=$(PNGINC) $(ZINC)
+CFLAGS=
LDLIBS=$(PNGLIB) $(ZLIB)
LDLIBSS=$(PNGLIBS) $(ZLIBS)
C=.c
@@ -37,7 +38,7 @@
all: png2pnm$(E) pnm2png$(E) png2pnm-static$(E) pnm2png-static$(E)
png2pnm$(O): png2pnm$(C)
- $(CC) -c $(CFLAGS) png2pnm$(C)
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) png2pnm$(C)
png2pnm$(E): png2pnm$(O)
$(LD) $(LDFLAGS) -o png2pnm$(E) png2pnm$(O) $(LDLIBS) -lm
@@ -46,7 +47,7 @@
$(LD) $(LDFLAGS) -o png2pnm-static$(E) png2pnm$(O) $(LDLIBSS) -lm
pnm2png$(O): pnm2png$(C)
- $(CC) -c $(CFLAGS) pnm2png$(C)
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) pnm2png$(C)
pnm2png$(E): pnm2png$(O)
$(LD) $(LDFLAGS) -o pnm2png$(E) pnm2png$(O) $(LDLIBS) -lm
diff --git a/contrib/pngminus/makefile.tc3 b/contrib/pngminus/makefile.tc3
index 404f18d..6a2f4b9 100644
--- a/contrib/pngminus/makefile.tc3
+++ b/contrib/pngminus/makefile.tc3
@@ -7,7 +7,8 @@
RM=del
CP=copy
MODEL=l
-CCFLAGS=-O -m$(MODEL) -I..\libpng -I..\zlib
+CPPFLAGS=-I..\libpng -I..\zlib
+CFLAGS=-O -m$(MODEL)
LDFLAGS=-m$(MODEL) -L..\libpng -L..\zlib
C=.c
O=.obj
@@ -19,13 +20,13 @@
all: png2pnm$(E) pnm2png$(E)
png2pnm$(O): png2pnm$(C)
- $(CC) -c $(CCFLAGS) png2pnm$(C)
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) png2pnm$(C)
png2pnm$(E): png2pnm$(O)
$(LD) $(LDFLAGS) png2pnm$(O) libpng$(L) zlib$(L)
pnm2png$(O): pnm2png$(C)
- $(CC) -c $(CCFLAGS) pnm2png$(C)
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) pnm2png$(C)
pnm2png$(E): pnm2png$(O)
$(LD) $(LDFLAGS) pnm2png$(O) libpng$(L) zlib$(L)
@@ -35,4 +36,3 @@
$(RM) *$(E)
# End of makefile for png2pnm / pnm2png
-
diff --git a/contrib/tools/pngfix.c b/contrib/tools/pngfix.c
index 63d7011..3b64627 100644
--- a/contrib/tools/pngfix.c
+++ b/contrib/tools/pngfix.c
@@ -1,8 +1,8 @@
/* pngfix.c
*
- * Copyright (c) 2013 John Cunningham Bowler
+ * Copyright (c) 2014 John Cunningham Bowler
*
- * Last changed in libpng 1.6.3 [July 18, 2013]
+ * Last changed in libpng 1.6.10 [March 6, 2014]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
@@ -15,6 +15,7 @@
#include <stdio.h>
#include <string.h>
#include <ctype.h>
+#include <limits.h>
#include <errno.h>
#include <assert.h>
@@ -31,7 +32,6 @@
# define FIX_GCC volatile
#else
# define FIX_GCC
-# error not tested
#endif
#define PROGRAM_NAME "pngfix"
@@ -49,8 +49,31 @@
# error "pngfix will not work with libpng prior to 1.6.3"
#endif
-#ifdef PNG_READ_SUPPORTED
+#if defined(PNG_READ_SUPPORTED) && defined(PNG_EASY_ACCESS_SUPPORTED)
+/* zlib.h defines the structure z_stream, an instance of which is included
+ * in this structure and is required for decompressing the LZ compressed
+ * data in PNG files.
+ */
+#ifndef ZLIB_CONST
+ /* We must ensure that zlib uses 'const' in declarations. */
+# define ZLIB_CONST
+#endif
#include <zlib.h>
+#ifdef const
+ /* zlib.h sometimes #defines const to nothing, undo this. */
+# undef const
+#endif
+
+/* zlib.h has mediocre z_const use before 1.2.6, this stuff is for compatibility
+ * with older builds.
+ */
+#if ZLIB_VERNUM < 0x1260
+# define PNGZ_MSG_CAST(s) png_constcast(char*,s)
+# define PNGZ_INPUT_CAST(b) png_constcast(png_bytep,b)
+#else
+# define PNGZ_MSG_CAST(s) (s)
+# define PNGZ_INPUT_CAST(b) (b)
+#endif
#ifndef PNG_MAXIMUM_INFLATE_WINDOW
# error "pngfix not supported in this libpng version"
@@ -118,6 +141,11 @@
/* Is it safe to copy? */
#define SAFE_TO_COPY(chunk) (((chunk) & PNG_U32(0,0,0,32)) != 0)
+/* Fix ups for builds with limited read support */
+#ifndef PNG_ERROR_TEXT_SUPPORTED
+# define png_error(a,b) png_err(a)
+#endif
+
/********************************* UTILITIES **********************************/
/* UNREACHED is a value to cause an assert to fail. Because of the way the
* assert macro is written the string "UNREACHED" is produced in the error
@@ -885,10 +913,10 @@
*/
{
for (; *str; ++str)
- if (isgraph(*str))
+ if (isgraph(UCHAR_MAX & *str))
putc(*str, out);
- else if (isspace(*str))
+ else if (isspace(UCHAR_MAX & *str))
putc('_', out);
else
@@ -1546,7 +1574,7 @@
}
static void
-chunk_init(struct chunk *chunk, struct file *file)
+chunk_init(struct chunk * const chunk, struct file * const file)
/* When a chunk is initialized the file length/type/pos are copied into the
* corresponding chunk fields and the new chunk is registered in the file
* structure. There can only be one chunk at a time.
@@ -1755,7 +1783,7 @@
}
static void
-IDAT_init(struct IDAT *idat, struct file *file)
+IDAT_init(struct IDAT * const idat, struct file * const file)
/* When the chunk is png_IDAT instantiate an IDAT control structure in place
* of a chunk control structure. The IDAT will instantiate a chunk control
* structure using the file alloc routine.
@@ -2636,7 +2664,7 @@
case ZLIB_OK:
/* Truncated stream; unrecoverable, gets converted to ZLIB_FATAL */
- zlib.z.msg = png_constcast(char*, "[truncated]");
+ zlib.z.msg = PNGZ_MSG_CAST("[truncated]");
zlib_message(&zlib, 0/*expected*/);
/* FALL THROUGH */
@@ -2675,7 +2703,7 @@
/* Output the error that wasn't output before: */
if (zlib.z.msg == NULL)
- zlib.z.msg = png_constcast(char*,
+ zlib.z.msg = PNGZ_MSG_CAST(
"invalid distance too far back");
zlib_message(&zlib, 0/*stream error*/);
zlib_end(&zlib);
@@ -3131,13 +3159,13 @@
/* This returns a file* from a png_struct in an implementation specific way. */
static struct file *get_control(png_const_structrp png_ptr);
-static void
+static void PNGCBAPI
error_handler(png_structp png_ptr, png_const_charp message)
{
stop(get_control(png_ptr), LIBPNG_ERROR_CODE, message);
}
-static void
+static void PNGCBAPI
warning_handler(png_structp png_ptr, png_const_charp message)
{
struct file *file = get_control(png_ptr);
@@ -3149,7 +3177,7 @@
/* Read callback - this is where the work gets done to check the stream before
* passing it to libpng
*/
-static void
+static void PNGCBAPI
read_callback(png_structp png_ptr, png_bytep buffer, size_t count)
/* Return 'count' bytes to libpng in 'buffer' */
{
@@ -3294,6 +3322,8 @@
else
{
+ assert(chunk != NULL);
+
/* Set up for write, notice that repositioning the input stream
* is only necessary if something is to be read from it. Also
* notice that for the IDAT stream this must only happen once -
@@ -3307,6 +3337,8 @@
/* FALL THROUGH */
default:
+ assert(chunk != NULL);
+
/* NOTE: the arithmetic below overflows and gives a large positive
* png_uint_32 value until the whole chunk data has been written.
*/
@@ -3512,22 +3544,14 @@
if (allocate_idat)
{
- struct IDAT *idat;
-
assert(file->idat == NULL);
- idat = &control->idat;
- IDAT_init(idat, file);
- file->idat = idat;
+ IDAT_init(&control->idat, file);
}
else /* chunk */
{
- struct chunk *chunk;
-
assert(file->chunk == NULL);
- chunk = &control->chunk;
- chunk_init(chunk, file);
- file->chunk = chunk;
+ chunk_init(&control->chunk, file);
}
}
@@ -3620,7 +3644,7 @@
return rc;
}
-static void
+static int
one_file(struct global *global, const char *file_name, const char *out_name)
{
int rc;
@@ -3639,6 +3663,8 @@
rc = read_png(&control);
rc |= control_end(&control);
+
+ return rc;
}
static void
@@ -4007,4 +4033,4 @@
fprintf(stderr, "pngfix does not work without read support\n");
return 77;
}
-#endif /* PNG_READ_SUPPORTED */
+#endif /* PNG_READ_SUPPORTED && PNG_EASY_ACCESS_SUPPORTED */
diff --git a/depcomp b/depcomp
index 3f02f5d..4ebd5b3 100755
--- a/depcomp
+++ b/depcomp
@@ -1,9 +1,9 @@
#! /bin/sh
# depcomp - compile a program generating dependencies as side-effects
-scriptversion=2012-10-18.11; # UTC
+scriptversion=2013-05-30.07; # UTC
-# Copyright (C) 1999-2012 Free Software Foundation, Inc.
+# Copyright (C) 1999-2013 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -552,6 +552,7 @@
G
p
}' >> "$depfile"
+ echo >> "$depfile" # make sure the fragment doesn't end with a backslash
rm -f "$tmpdepfile"
;;
diff --git a/libpng-manual.txt b/libpng-manual.txt
index 976b055..73e09ab 100644
--- a/libpng-manual.txt
+++ b/libpng-manual.txt
@@ -1,9 +1,9 @@
libpng-manual.txt - A description on how to use and modify libpng
- libpng version 1.6.3 - July 18, 2013
+ libpng version 1.6.10 - March 6, 2014
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
- Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ Copyright (c) 1998-2014 Glenn Randers-Pehrson
This document is released under the libpng license.
For conditions of distribution and use, see the disclaimer
@@ -11,9 +11,9 @@
Based on:
- libpng versions 0.97, January 1998, through 1.6.3 - July 18, 2013
+ libpng versions 0.97, January 1998, through 1.6.10 - March 6, 2014
Updated and distributed by Glenn Randers-Pehrson
- Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ Copyright (c) 1998-2014 Glenn Randers-Pehrson
libpng 1.0 beta 6 version 0.96 May 28, 1997
Updated and distributed by Andreas Dilger
@@ -274,10 +274,10 @@
contrib/pngminim/*. See the "$(PNGCONF):" target in the makefile and
pngusr.dfa in these directories.
-C. Configuration using PNG_USR_CONFIG
+C. Configuration using PNG_USER_CONFIG
-If -DPNG_USR_CONFIG is added to the CFLAGS when pnglibconf.h is built the file
-pngusr.h will automatically be included before the options in
+If -DPNG_USER_CONFIG is added to the CPPFLAGS when pnglibconf.h is built,
+the file pngusr.h will automatically be included before the options in
scripts/pnglibconf.dfa are processed. Your pngusr.h file should contain only
macro definitions turning features on or off or setting settings.
@@ -712,12 +712,12 @@
case the required information is missing from the file. By default libpng
assumes that the PNG data matches your system, to keep this default call:
- png_set_gamma(png_ptr, screen_gamma, 1/screen_gamma/*file gamma*/);
+ png_set_gamma(png_ptr, screen_gamma, output_gamma);
or you can use the fixed point equivalent:
png_set_gamma_fixed(png_ptr, PNG_FP_1*screen_gamma,
- PNG_FP_1/screen_gamma);
+ PNG_FP_1*output_gamma);
If you don't know the gamma for your system it is probably 2.2 - a good
approximation to the IEC standard for display systems (sRGB). If images are
@@ -740,11 +740,75 @@
encoding.
You would use the linear (unencoded) value if you need to process the pixel
-values further because this avoids the need to decode and reencode each
+values further because this avoids the need to decode and re-encode each
component value whenever arithmetic is performed. A lot of graphics software
uses linear values for this reason, often with higher precision component values
to preserve overall accuracy.
+
+The output_gamma value expresses how to decode the output values, not how
+they are encoded. The values used correspond to the normal numbers used to
+describe the overall gamma of a computer display system; for example 2.2 for
+an sRGB conformant system. The values are scaled by 100000 in the _fixed
+version of the API (so 220000 for sRGB.)
+
+The inverse of the value is always used to provide a default for the PNG file
+encoding if it has no gAMA chunk and if png_set_gamma() has not been called
+to override the PNG gamma information.
+
+When the ALPHA_OPTIMIZED mode is selected the output gamma is used to encode
+opaque pixels however pixels with lower alpha values are not encoded,
+regardless of the output gamma setting.
+
+When the standard Porter Duff handling is requested with mode 1 the output
+encoding is set to be linear and the output_gamma value is only relevant
+as a default for input data that has no gamma information. The linear output
+encoding will be overridden if png_set_gamma() is called - the results may be
+highly unexpected!
+
+The following numbers are derived from the sRGB standard and the research
+behind it. sRGB is defined to be approximated by a PNG gAMA chunk value of
+0.45455 (1/2.2) for PNG. The value implicitly includes any viewing
+correction required to take account of any differences in the color
+environment of the original scene and the intended display environment; the
+value expresses how to *decode* the image for display, not how the original
+data was *encoded*.
+
+sRGB provides a peg for the PNG standard by defining a viewing environment.
+sRGB itself, and earlier TV standards, actually use a more complex transform
+(a linear portion then a gamma 2.4 power law) than PNG can express. (PNG is
+limited to simple power laws.) By saying that an image for direct display on
+an sRGB conformant system should be stored with a gAMA chunk value of 45455
+(11.3.3.2 and 11.3.3.5 of the ISO PNG specification) the PNG specification
+makes it possible to derive values for other display systems and
+environments.
+
+The Mac value is deduced from the sRGB based on an assumption that the actual
+extra viewing correction used in early Mac display systems was implemented as
+a power 1.45 lookup table.
+
+Any system where a programmable lookup table is used or where the behavior of
+the final display device characteristics can be changed requires system
+specific code to obtain the current characteristic. However this can be
+difficult and most PNG gamma correction only requires an approximate value.
+
+By default, if png_set_alpha_mode() is not called, libpng assumes that all
+values are unencoded, linear, values and that the output device also has a
+linear characteristic. This is only very rarely correct - it is invariably
+better to call png_set_alpha_mode() with PNG_DEFAULT_sRGB than rely on the
+default if you don't know what the right answer is!
+
+The special value PNG_GAMMA_MAC_18 indicates an older Mac system (pre Mac OS
+10.6) which used a correction table to implement a somewhat lower gamma on an
+otherwise sRGB system.
+
+Both these values are reserved (not simple gamma values) in order to allow
+more precise correction internally in the future.
+
+NOTE: the values can be passed to either the fixed or floating
+point APIs, but the floating point API will also accept floating point
+values.
+
The second thing you may need to tell libpng about is how your system handles
alpha channel information. Some, but not all, PNG files contain an alpha
channel. To display these files correctly you need to compose the data onto a
@@ -769,11 +833,11 @@
The mode is as follows:
- PNG_ALPHA_PNG: The data is encoded according to the PNG specification. Red,
-green and blue, or gray, components are gamma encoded color
-values and are not premultiplied by the alpha value. The
-alpha value is a linear measure of the contribution of the
-pixel to the corresponding final output pixel.
+ PNG_ALPHA_PNG: The data is encoded according to the PNG
+specification. Red, green and blue, or gray, components are
+gamma encoded color values and are not premultiplied by the
+alpha value. The alpha value is a linear measure of the
+contribution of the pixel to the corresponding final output pixel.
You should normally use this format if you intend to perform
color correction on the color values; most, maybe all, color
@@ -790,11 +854,35 @@
The remaining modes assume you don't need to do any further color correction or
that if you do, your color correction software knows all about alpha (it
-probably doesn't!)
+probably doesn't!). They 'associate' the alpha with the color information by
+storing color channel values that have been scaled by the alpha. The
+advantage is that the color channels can be resampled (the image can be
+scaled) in this form. The disadvantage is that normal practice is to store
+linear, not (gamma) encoded, values and this requires 16-bit channels for
+still images rather than the 8-bit channels that are just about sufficient if
+gamma encoding is used. In addition all non-transparent pixel values,
+including completely opaque ones, must be gamma encoded to produce the final
+image. These are the 'STANDARD', 'ASSOCIATED' or 'PREMULTIPLIED' modes
+described below (the latter being the two common names for associated alpha
+color channels). Note that PNG files always contain non-associated color
+channels; png_set_alpha_mode() with one of the modes causes the decoder to
+convert the pixels to an associated form before returning them to your
+application.
- PNG_ALPHA_STANDARD: The data libpng produces
-is encoded in the standard way
-assumed by most correctly written graphics software.
+Since it is not necessary to perform arithmetic on opaque color values so
+long as they are not to be resampled and are in the final color space it is
+possible to optimize the handling of alpha by storing the opaque pixels in
+the PNG format (adjusted for the output color space) while storing partially
+opaque pixels in the standard, linear, format. The accuracy required for
+standard alpha composition is relatively low, because the pixels are
+isolated, therefore typically the accuracy loss in storing 8-bit linear
+values is acceptable. (This is not true if the alpha channel is used to
+simulate transparency over large areas - use 16 bits or the PNG mode in
+this case!) This is the 'OPTIMIZED' mode. For this mode a pixel is
+treated as opaque only if the alpha value is equal to the maximum value.
+
+ PNG_ALPHA_STANDARD: The data libpng produces is encoded in the
+standard way assumed by most correctly written graphics software.
The gamma encoding will be removed by libpng and the
linear component values will be pre-multiplied by the
alpha channel.
@@ -823,9 +911,8 @@
supports it, use png_set_expand_16() to force all
components to 16 bits.
- PNG_ALPHA_OPTIMIZED: This mode is the same
-as PNG_ALPHA_STANDARD except that
-completely opaque pixels are gamma encoded according to
+ PNG_ALPHA_OPTIMIZED: This mode is the same as PNG_ALPHA_STANDARD
+except that completely opaque pixels are gamma encoded according to
the screen_gamma value. Pixels with alpha less than 1.0
will still have linear components.
@@ -844,18 +931,16 @@
You can also try this format if your software is broken;
it might look better.
- PNG_ALPHA_BROKEN: This is PNG_ALPHA_STANDARD;
-however, all component values,
-including the alpha channel are gamma encoded. This is
-an appropriate format to try if your software, or more
-likely hardware, is totally broken, i.e., if it performs
-linear arithmetic directly on gamma encoded values.
-
-In most cases of broken software or hardware the bug in the final display
-manifests as a subtle halo around composited parts of the image. You may not
-even perceive this as a halo; the composited part of the image may simply appear
-separate from the background, as though it had been cut out of paper and pasted
-on afterward.
+ PNG_ALPHA_BROKEN: This is PNG_ALPHA_STANDARD; however, all component
+values, including the alpha channel are gamma encoded. This is
+broken because, in practice, no implementation that uses this choice
+correctly undoes the encoding before handling alpha composition. Use this
+choice only if other serious errors in the software or hardware you use
+mandate it. In most cases of broken software or hardware the bug in the
+final display manifests as a subtle halo around composited parts of the
+image. You may not even perceive this as a halo; the composited part of
+the image may simply appear separate from the background, as though it had
+been cut out of paper and pasted on afterward.
If you don't have to deal with bugs in software or hardware, or if you can fix
them, there are three recommended ways of using png_set_alpha_mode():
@@ -886,6 +971,89 @@
mode is libpng-specific you also need to write your own composition
software.
+The following are examples of calls to png_set_alpha_mode to achieve the
+required overall gamma correction and, where necessary, alpha
+premultiplication.
+
+ png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB);
+
+This is the default libpng handling of the alpha channel - it is not
+pre-multiplied into the color components. In addition the call states
+that the output is for a sRGB system and causes all PNG files without gAMA
+chunks to be assumed to be encoded using sRGB.
+
+ png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC);
+
+In this case the output is assumed to be something like an sRGB conformant
+display preceeded by a power-law lookup table of power 1.45. This is how
+early Mac systems behaved.
+
+ png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_GAMMA_LINEAR);
+
+This is the classic Jim Blinn approach and will work in academic
+environments where everything is done by the book. It has the shortcoming
+of assuming that input PNG data with no gamma information is linear - this
+is unlikely to be correct unless the PNG files where generated locally.
+Most of the time the output precision will be so low as to show
+significant banding in dark areas of the image.
+
+ png_set_expand_16(pp);
+ png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_DEFAULT_sRGB);
+
+This is a somewhat more realistic Jim Blinn inspired approach. PNG files
+are assumed to have the sRGB encoding if not marked with a gamma value and
+the output is always 16 bits per component. This permits accurate scaling
+and processing of the data. If you know that your input PNG files were
+generated locally you might need to replace PNG_DEFAULT_sRGB with the
+correct value for your system.
+
+ png_set_alpha_mode(pp, PNG_ALPHA_OPTIMIZED, PNG_DEFAULT_sRGB);
+
+If you just need to composite the PNG image onto an existing background
+and if you control the code that does this you can use the optimization
+setting. In this case you just copy completely opaque pixels to the
+output. For pixels that are not completely transparent (you just skip
+those) you do the composition math using png_composite or png_composite_16
+below then encode the resultant 8-bit or 16-bit values to match the output
+encoding.
+
+ Other cases
+
+If neither the PNG nor the standard linear encoding work for you because
+of the software or hardware you use then you have a big problem. The PNG
+case will probably result in halos around the image. The linear encoding
+will probably result in a washed out, too bright, image (it's actually too
+contrasty.) Try the ALPHA_OPTIMIZED mode above - this will probably
+substantially reduce the halos. Alternatively try:
+
+ png_set_alpha_mode(pp, PNG_ALPHA_BROKEN, PNG_DEFAULT_sRGB);
+
+This option will also reduce the halos, but there will be slight dark
+halos round the opaque parts of the image where the background is light.
+In the OPTIMIZED mode the halos will be light halos where the background
+is dark. Take your pick - the halos are unavoidable unless you can get
+your hardware/software fixed! (The OPTIMIZED approach is slightly
+faster.)
+
+When the default gamma of PNG files doesn't match the output gamma.
+If you have PNG files with no gamma information png_set_alpha_mode allows
+you to provide a default gamma, but it also sets the ouput gamma to the
+matching value. If you know your PNG files have a gamma that doesn't
+match the output you can take advantage of the fact that
+png_set_alpha_mode always sets the output gamma but only sets the PNG
+default if it is not already set:
+
+ png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB);
+ png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC);
+
+The first call sets both the default and the output gamma values, the
+second call overrides the output gamma without changing the default. This
+is easier than achieving the same effect with png_set_gamma. You must use
+PNG_ALPHA_PNG for the first call - internal checking in png_set_alpha will
+fire if more than one call to png_set_alpha_mode and png_set_background is
+made in the same read operation, however multiple calls with PNG_ALPHA_PNG
+are ignored.
+
If you don't need, or can't handle, the alpha channel you can call
png_set_background() to remove it by compositing against a fixed color. Don't
call png_set_strip_alpha() to do this - it will leave spurious pixel values in
@@ -1216,7 +1384,7 @@
png_get_sRGB(png_ptr, info_ptr, &srgb_intent);
- file_srgb_intent - the rendering intent (PNG_INFO_sRGB)
+ srgb_intent - the rendering intent (PNG_INFO_sRGB)
The presence of the sRGB chunk
means that the pixel data is in the
sRGB color space. This chunk also
@@ -2166,10 +2334,15 @@
Finishing a sequential read
After you are finished reading the image through the
-low-level interface, you can finish reading the file. If you are
-interested in comments or time, which may be stored either before or
-after the image data, you should pass the separate png_info struct if
-you want to keep the comments from before and after the image
+low-level interface, you can finish reading the file.
+
+If you want to use a different crc action for handling CRC errors in
+chunks after the image data, you can call png_set_crc_action()
+again at this point.
+
+If you are interested in comments or time, which may be stored either
+before or after the image data, you should pass the separate png_info
+struct if you want to keep the comments from before and after the image
separate.
png_infop end_info = png_create_info_struct(png_ptr);
@@ -2185,6 +2358,9 @@
If you are not interested, you should still call png_read_end()
but you can pass NULL, avoiding the need to create an end_info structure.
+If you do this, libpng will not process any chunks after IDAT other than
+skipping over them and perhaps (depending on whether you have called
+png_set_crc_action) checking their CRCs while looking for the IEND chunk.
png_read_end(png_ptr, (png_infop)NULL);
@@ -3535,7 +3711,7 @@
of both libpng and the PNG file format itself.
It allows PNG files to be read into a very limited number of
in-memory bitmap formats or to be written from the same formats. If these
-formats do not accomodate your needs then you can, and should, use the more
+formats do not accommodate your needs then you can, and should, use the more
sophisticated APIs above - these support a wide variety of in-memory formats
and a wide variety of sophisticated transformations to those formats as well
as a wide variety of APIs to manipulate ancilliary information.
@@ -4393,6 +4569,9 @@
name to force compilation errors with applications that try to use the old
method.
+Support for the sCAL, iCCP, iTXt, and sPLT chunks was added at libpng-1.0.6;
+however, iTXt support was not enabled by default.
+
Starting with version 1.0.7, you can find out which version of the library
you are using at run-time:
@@ -4609,7 +4788,7 @@
The code was not
removed, however, and could be enabled by building libpng with
PNG_READ_DITHER_SUPPORTED defined. In libpng-1.4.2, this support
-was reenabled, but the function was renamed png_set_quantize() to
+was re-enabled, but the function was renamed png_set_quantize() to
reflect more accurately what it actually does. At the same time,
the PNG_DITHER_[RED,GREEN_BLUE]_BITS macros were also renamed to
PNG_QUANTIZE_[RED,GREEN,BLUE]_BITS, and PNG_READ_DITHER_SUPPORTED
@@ -4621,12 +4800,13 @@
From libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the
function) incorrectly returned a value of type png_uint_32.
+The incorrect macro was removed from libpng-1.4.5.
-Checking for invalid palette index on read or write was added at libpng
-1.5.10. When an invalid index is found, libpng issues a benign error.
-This is enabled by default because this condition is an error according
-to the PNG specification, Clause 11.3.2, but the error can be ignored in
-each png_ptr with
+Checking for invalid palette index on write was added at libpng
+1.5.10. If a pixel contains an invalid (out-of-range) index libpng issues
+a benign error. This is enabled by default because this condition is an
+error according to the PNG specification, Clause 11.3.2, but the error can
+be ignored in each png_ptr with
png_set_check_for_invalid_index(png_ptr, allowed);
@@ -4725,7 +4905,10 @@
representation of these values. Consequently a "string" API
(png_get_sCAL_s and png_set_sCAL_s) is the only reliable way of reading
arbitrary sCAL chunks in the absence of either the floating point API or
-internal floating point calculations.
+internal floating point calculations. Starting with libpng-1.5.0, both
+of these functions are present when PNG_sCAL_SUPPORTED is defined. Prior
+to libpng-1.5.0, their presence also depended upon PNG_FIXED_POINT_SUPPORTED
+being defined and PNG_FLOATING_POINT_SUPPORTED not being defined.
Applications no longer need to include the optional distribution header
file pngusr.h or define the corresponding macros during application
@@ -4745,15 +4928,10 @@
These settings may produce compiler warnings or errors in 1.5.0 because
of macro redefinition.
-From libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the
-function) incorrectly returned a value of type png_uint_32. libpng 1.5.0
-is consistent with the implementation in 1.4.5 and 1.2.x (where the macro
-did not exist.)
-
Applications can now choose whether to use these macros or to call the
corresponding function by defining PNG_USE_READ_MACROS or
PNG_NO_USE_READ_MACROS before including png.h. Notice that this is
-only supported from 1.5.0 -defining PNG_NO_USE_READ_MACROS prior to 1.5.0
+only supported from 1.5.0; defining PNG_NO_USE_READ_MACROS prior to 1.5.0
will lead to a link failure.
Prior to libpng-1.5.4, the zlib compressor used the same set of parameters
@@ -4767,7 +4945,10 @@
This option can no longer be turned off, and the choice of accurate
or inaccurate 16-to-8 scaling is by using the new png_set_scale_16_to_8()
API for accurate scaling or the old png_set_strip_16_to_8() API for simple
-chopping.
+chopping. In libpng-1.5.4, the PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
+macro became PNG_READ_SCALE_16_TO_8_SUPPORTED, and the PNG_READ_16_TO_8
+macro became PNG_READ_STRIP_16_TO_8_SUPPORTED, to enable the two
+png_set_*_16_to_8() functions separately.
Prior to libpng-1.5.4, the png_set_user_limits() function could only be
used to reduce the width and height limits from the value of
@@ -4789,6 +4970,9 @@
png_user_chunk_cache_max 0 (unlimited) 128
png_user_chunk_malloc_max 0 (unlimited) 8,000,000
+The png_set_option() function (and the "options" member of the png struct) was
+added to libpng-1.5.15.
+
B. Changes to the build and configuration of libpng
Details of internal changes to the library code can be found in the CHANGES
@@ -4933,7 +5117,7 @@
build of pnglibconf.h and it is never included in an application build.
The rarely used alternative of adding a list of feature macros to the
-CFLAGS setting in the build also still works; however, the macros will be
+CPPFLAGS setting in the build also still works; however, the macros will be
copied to pnglibconf.h and this may produce macro redefinition warnings
when the individual C files are compiled.
@@ -4990,7 +5174,6 @@
png_info_init_3()
png_convert_to_rfc1123() which has been replaced
with png_convert_to_rfc1123_buffer()
- png_data_freer()
png_malloc_default()
png_free_default()
png_reset_zstream()
@@ -5012,10 +5195,11 @@
Error detection in some chunks has improved; in particular the iCCP chunk
reader now does pretty complete validation of the basic format. Some bad
-profiles that were previously accepted are now rejected, in particular the
-very old broken Microsoft/HP sRGB profile. The PNG spec requirement that
-only grayscale profiles may appear in images with color type 0 or 4 and that
-even if the image only contains gray pixels, only RGB profiles may appear
+profiles that were previously accepted are now accepted with a warning or
+rejected, depending upon the png_set_benign_errors() setting, in particular the
+very old broken Microsoft/HP 3144-byte sRGB profile. The PNG spec requirement
+that only grayscale profiles may appear in images with color type 0 or 4 and
+that even if the image only contains gray pixels, only RGB profiles may appear
in images with color type 2, 3, or 6, is now enforced. The sRGB chunk
is allowed to appear in images with any color type.
@@ -5024,7 +5208,9 @@
are allowed by the PNG specification, so these warnings are no longer issued.
The library now issues an error if the application attempts to set a
-transform after it calls png_read_update_info().
+transform after it calls png_read_update_info() or if it attempts to call
+both png_read_update_info() and png_start_read_image() or to call either
+of them more than once.
The default condition for benign_errors is now to treat benign errors as
warnings while reading and as errors while writing.
@@ -5045,14 +5231,19 @@
libpng16 and later of the GIT repository. They continue to be included
in the tarball releases, however.
-Libpng-1.6.0 and later use the CMF bytes at the beginning of the IDAT stream
-to set the size of the sliding window for reading instead of using the default
-32-kbyte sliding window size. It was discovered that there are hundreds of PNG
-files in the wild that have incorrect CMF bytes that cause libpng to now issue
-a "too far back" error and reject the file. Libpng-1.6.3 provides a way to
-revert to the libpng-1.5.x behavior (ignoring the CMF bytes and using a
-32-kbyte sliding window), and provides a tool
-(contrib/tools/png-fix-too-far-back) for optimizing the CMF bytes
+Libpng-1.6.0 through 1.6.2 used the CMF bytes at the beginning of the IDAT
+stream to set the size of the sliding window for reading instead of using the
+default 32-kbyte sliding window size. It was discovered that there are
+hundreds of PNG files in the wild that have incorrect CMF bytes that caused
+libpng to issue a "too far back" error and reject the file. Libpng-1.6.3 and
+later calculate their own safe CMF from the image dimensions, provide a way
+to revert to the libpng-1.5.x behavior (ignoring the CMF bytes and using a
+32-kbyte sliding window), by using
+
+ png_set_option(png_ptr, PNG_MAXIMUM_INFLATE_WINDOW,
+ PNG_OPTION_ON);
+
+and provide a tool (contrib/tools/pngfix) for optimizing the CMF bytes
correctly.
Libpng-1.6.0 and libpng-1.6.1 wrote uncompressed iTXt chunks with the wrong
@@ -5158,6 +5349,9 @@
body;
}
+The return type and decorations are placed on a separate line
+ahead of the function name, as illustrated above.
+
The prototypes for all exported functions appear in png.h,
above the comment that says
@@ -5222,13 +5416,13 @@
XVI. Y2K Compliance in libpng
-July 18, 2013
+March 6, 2014
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.6.3 are Y2K compliant. It is my belief that earlier
+upward through 1.6.10 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant.
Libpng only has two year fields. One is a 2-byte unsigned integer
diff --git a/libpng.3 b/libpng.3
index 5d576f3..db4990f 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,6 +1,6 @@
-.TH LIBPNG 3 "July 18, 2013"
+.TH LIBPNG 3 "March 6, 2014"
.SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.6.3
+libpng \- Portable Network Graphics (PNG) Reference Library 1.6.10
.SH SYNOPSIS
\fB
#include <png.h>\fP
@@ -504,10 +504,10 @@
.SH LIBPNG.TXT
libpng-manual.txt - A description on how to use and modify libpng
- libpng version 1.6.3 - July 18, 2013
+ libpng version 1.6.10 - March 6, 2014
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
- Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ Copyright (c) 1998-2014 Glenn Randers-Pehrson
This document is released under the libpng license.
For conditions of distribution and use, see the disclaimer
@@ -515,9 +515,9 @@
Based on:
- libpng versions 0.97, January 1998, through 1.6.3 - July 18, 2013
+ libpng versions 0.97, January 1998, through 1.6.10 - March 6, 2014
Updated and distributed by Glenn Randers-Pehrson
- Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ Copyright (c) 1998-2014 Glenn Randers-Pehrson
libpng 1.0 beta 6 version 0.96 May 28, 1997
Updated and distributed by Andreas Dilger
@@ -672,7 +672,7 @@
takes the corresponding fixed point integer arguments. The fixed point
API has the same name as the floating point one with "_fixed" appended.
The actual range of values permitted in the APIs is frequently less than
-the full range of (png_fixed_point) (-21474 to +21474). When APIs require
+the full range of (png_fixed_point) (\-21474 to +21474). When APIs require
a non-negative argument the type is recorded as png_uint_32 above. Consult
the header file and the text below for more information.
@@ -713,7 +713,7 @@
auto-configuration is supported is to add definitions to the command line
using (typically) CPPFLAGS. For example:
-CPPFLAGS=-DPNG_NO_FLOATING_ARITHMETIC
+CPPFLAGS=\-DPNG_NO_FLOATING_ARITHMETIC
will change the internal libpng math implementation for gamma correction and
other arithmetic calculations to fixed point, avoiding the need for fast
@@ -721,7 +721,7 @@
make sure it contains the changed feature macro setting.
If you need to make more extensive configuration changes - more than one or two
-feature macro settings - you can either add -DPNG_USER_CONFIG to the build
+feature macro settings - you can either add \-DPNG_USER_CONFIG to the build
command line and put a list of feature macro settings in pngusr.h or you can set
DFA_XTRA (a makefile variable) to a file containing the same information in the
form of 'option' settings.
@@ -778,10 +778,10 @@
contrib/pngminim/*. See the "$(PNGCONF):" target in the makefile and
pngusr.dfa in these directories.
-C. Configuration using PNG_USR_CONFIG
+C. Configuration using PNG_USER_CONFIG
-If -DPNG_USR_CONFIG is added to the CFLAGS when pnglibconf.h is built the file
-pngusr.h will automatically be included before the options in
+If \-DPNG_USER_CONFIG is added to the CPPFLAGS when pnglibconf.h is built,
+the file pngusr.h will automatically be included before the options in
scripts/pnglibconf.dfa are processed. Your pngusr.h file should contain only
macro definitions turning features on or off or setting settings.
@@ -1010,7 +1010,7 @@
unknown chunk structure, process it, and return one
of the following: */
- return (-n); /* chunk had an error */
+ return (\-n); /* chunk had an error */
return (0); /* did not recognize */
return (n); /* success */
}
@@ -1061,7 +1061,7 @@
passed in row number, and pass will always be 0. For the interlaced case the
same applies unless the row value is 0, in which case the row just handled was
the last one from one of the preceding passes. Because interlacing may skip a
-pass you cannot be sure that the preceding pass is just 'pass-1', if you really
+pass you cannot be sure that the preceding pass is just 'pass\-1', if you really
need to know what the last pass is record (row,pass) from the callback and use
the last recorded value each time.
@@ -1151,7 +1151,7 @@
.SS User limits
The PNG specification allows the width and height of an image to be as
-large as 2^31-1 (0x7fffffff), or about 2.147 billion rows and columns.
+large as 2^(31\-1 (0x7fffffff), or about 2.147 billion rows and columns.
Since very few applications really need to process such large images,
we have imposed an arbitrary 1-million limit on rows and columns.
Larger images will be rejected immediately with a png_error() call. If
@@ -1216,12 +1216,12 @@
case the required information is missing from the file. By default libpng
assumes that the PNG data matches your system, to keep this default call:
- png_set_gamma(png_ptr, screen_gamma, 1/screen_gamma/*file gamma*/);
+ png_set_gamma(png_ptr, screen_gamma, output_gamma);
or you can use the fixed point equivalent:
png_set_gamma_fixed(png_ptr, PNG_FP_1*screen_gamma,
- PNG_FP_1/screen_gamma);
+ PNG_FP_1*output_gamma);
If you don't know the gamma for your system it is probably 2.2 - a good
approximation to the IEC standard for display systems (sRGB). If images are
@@ -1244,11 +1244,75 @@
encoding.
You would use the linear (unencoded) value if you need to process the pixel
-values further because this avoids the need to decode and reencode each
+values further because this avoids the need to decode and re-encode each
component value whenever arithmetic is performed. A lot of graphics software
uses linear values for this reason, often with higher precision component values
to preserve overall accuracy.
+
+The output_gamma value expresses how to decode the output values, not how
+they are encoded. The values used correspond to the normal numbers used to
+describe the overall gamma of a computer display system; for example 2.2 for
+an sRGB conformant system. The values are scaled by 100000 in the _fixed
+version of the API (so 220000 for sRGB.)
+
+The inverse of the value is always used to provide a default for the PNG file
+encoding if it has no gAMA chunk and if png_set_gamma() has not been called
+to override the PNG gamma information.
+
+When the ALPHA_OPTIMIZED mode is selected the output gamma is used to encode
+opaque pixels however pixels with lower alpha values are not encoded,
+regardless of the output gamma setting.
+
+When the standard Porter Duff handling is requested with mode 1 the output
+encoding is set to be linear and the output_gamma value is only relevant
+as a default for input data that has no gamma information. The linear output
+encoding will be overridden if png_set_gamma() is called - the results may be
+highly unexpected!
+
+The following numbers are derived from the sRGB standard and the research
+behind it. sRGB is defined to be approximated by a PNG gAMA chunk value of
+0.45455 (1/2.2) for PNG. The value implicitly includes any viewing
+correction required to take account of any differences in the color
+environment of the original scene and the intended display environment; the
+value expresses how to *decode* the image for display, not how the original
+data was *encoded*.
+
+sRGB provides a peg for the PNG standard by defining a viewing environment.
+sRGB itself, and earlier TV standards, actually use a more complex transform
+(a linear portion then a gamma 2.4 power law) than PNG can express. (PNG is
+limited to simple power laws.) By saying that an image for direct display on
+an sRGB conformant system should be stored with a gAMA chunk value of 45455
+(11.3.3.2 and 11.3.3.5 of the ISO PNG specification) the PNG specification
+makes it possible to derive values for other display systems and
+environments.
+
+The Mac value is deduced from the sRGB based on an assumption that the actual
+extra viewing correction used in early Mac display systems was implemented as
+a power 1.45 lookup table.
+
+Any system where a programmable lookup table is used or where the behavior of
+the final display device characteristics can be changed requires system
+specific code to obtain the current characteristic. However this can be
+difficult and most PNG gamma correction only requires an approximate value.
+
+By default, if png_set_alpha_mode() is not called, libpng assumes that all
+values are unencoded, linear, values and that the output device also has a
+linear characteristic. This is only very rarely correct - it is invariably
+better to call png_set_alpha_mode() with PNG_DEFAULT_sRGB than rely on the
+default if you don't know what the right answer is!
+
+The special value PNG_GAMMA_MAC_18 indicates an older Mac system (pre Mac OS
+10.6) which used a correction table to implement a somewhat lower gamma on an
+otherwise sRGB system.
+
+Both these values are reserved (not simple gamma values) in order to allow
+more precise correction internally in the future.
+
+NOTE: the values can be passed to either the fixed or floating
+point APIs, but the floating point API will also accept floating point
+values.
+
The second thing you may need to tell libpng about is how your system handles
alpha channel information. Some, but not all, PNG files contain an alpha
channel. To display these files correctly you need to compose the data onto a
@@ -1273,11 +1337,11 @@
The mode is as follows:
- PNG_ALPHA_PNG: The data is encoded according to the PNG specification. Red,
-green and blue, or gray, components are gamma encoded color
-values and are not premultiplied by the alpha value. The
-alpha value is a linear measure of the contribution of the
-pixel to the corresponding final output pixel.
+ PNG_ALPHA_PNG: The data is encoded according to the PNG
+specification. Red, green and blue, or gray, components are
+gamma encoded color values and are not premultiplied by the
+alpha value. The alpha value is a linear measure of the
+contribution of the pixel to the corresponding final output pixel.
You should normally use this format if you intend to perform
color correction on the color values; most, maybe all, color
@@ -1294,11 +1358,35 @@
The remaining modes assume you don't need to do any further color correction or
that if you do, your color correction software knows all about alpha (it
-probably doesn't!)
+probably doesn't!). They 'associate' the alpha with the color information by
+storing color channel values that have been scaled by the alpha. The
+advantage is that the color channels can be resampled (the image can be
+scaled) in this form. The disadvantage is that normal practice is to store
+linear, not (gamma) encoded, values and this requires 16-bit channels for
+still images rather than the 8-bit channels that are just about sufficient if
+gamma encoding is used. In addition all non-transparent pixel values,
+including completely opaque ones, must be gamma encoded to produce the final
+image. These are the 'STANDARD', 'ASSOCIATED' or 'PREMULTIPLIED' modes
+described below (the latter being the two common names for associated alpha
+color channels). Note that PNG files always contain non-associated color
+channels; png_set_alpha_mode() with one of the modes causes the decoder to
+convert the pixels to an associated form before returning them to your
+application.
- PNG_ALPHA_STANDARD: The data libpng produces
-is encoded in the standard way
-assumed by most correctly written graphics software.
+Since it is not necessary to perform arithmetic on opaque color values so
+long as they are not to be resampled and are in the final color space it is
+possible to optimize the handling of alpha by storing the opaque pixels in
+the PNG format (adjusted for the output color space) while storing partially
+opaque pixels in the standard, linear, format. The accuracy required for
+standard alpha composition is relatively low, because the pixels are
+isolated, therefore typically the accuracy loss in storing 8-bit linear
+values is acceptable. (This is not true if the alpha channel is used to
+simulate transparency over large areas - use 16 bits or the PNG mode in
+this case!) This is the 'OPTIMIZED' mode. For this mode a pixel is
+treated as opaque only if the alpha value is equal to the maximum value.
+
+ PNG_ALPHA_STANDARD: The data libpng produces is encoded in the
+standard way assumed by most correctly written graphics software.
The gamma encoding will be removed by libpng and the
linear component values will be pre-multiplied by the
alpha channel.
@@ -1327,9 +1415,8 @@
supports it, use png_set_expand_16() to force all
components to 16 bits.
- PNG_ALPHA_OPTIMIZED: This mode is the same
-as PNG_ALPHA_STANDARD except that
-completely opaque pixels are gamma encoded according to
+ PNG_ALPHA_OPTIMIZED: This mode is the same as PNG_ALPHA_STANDARD
+except that completely opaque pixels are gamma encoded according to
the screen_gamma value. Pixels with alpha less than 1.0
will still have linear components.
@@ -1348,18 +1435,16 @@
You can also try this format if your software is broken;
it might look better.
- PNG_ALPHA_BROKEN: This is PNG_ALPHA_STANDARD;
-however, all component values,
-including the alpha channel are gamma encoded. This is
-an appropriate format to try if your software, or more
-likely hardware, is totally broken, i.e., if it performs
-linear arithmetic directly on gamma encoded values.
-
-In most cases of broken software or hardware the bug in the final display
-manifests as a subtle halo around composited parts of the image. You may not
-even perceive this as a halo; the composited part of the image may simply appear
-separate from the background, as though it had been cut out of paper and pasted
-on afterward.
+ PNG_ALPHA_BROKEN: This is PNG_ALPHA_STANDARD; however, all component
+values, including the alpha channel are gamma encoded. This is
+broken because, in practice, no implementation that uses this choice
+correctly undoes the encoding before handling alpha composition. Use this
+choice only if other serious errors in the software or hardware you use
+mandate it. In most cases of broken software or hardware the bug in the
+final display manifests as a subtle halo around composited parts of the
+image. You may not even perceive this as a halo; the composited part of
+the image may simply appear separate from the background, as though it had
+been cut out of paper and pasted on afterward.
If you don't have to deal with bugs in software or hardware, or if you can fix
them, there are three recommended ways of using png_set_alpha_mode():
@@ -1390,6 +1475,89 @@
mode is libpng-specific you also need to write your own composition
software.
+The following are examples of calls to png_set_alpha_mode to achieve the
+required overall gamma correction and, where necessary, alpha
+premultiplication.
+
+ png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB);
+
+This is the default libpng handling of the alpha channel - it is not
+pre-multiplied into the color components. In addition the call states
+that the output is for a sRGB system and causes all PNG files without gAMA
+chunks to be assumed to be encoded using sRGB.
+
+ png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC);
+
+In this case the output is assumed to be something like an sRGB conformant
+display preceeded by a power-law lookup table of power 1.45. This is how
+early Mac systems behaved.
+
+ png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_GAMMA_LINEAR);
+
+This is the classic Jim Blinn approach and will work in academic
+environments where everything is done by the book. It has the shortcoming
+of assuming that input PNG data with no gamma information is linear - this
+is unlikely to be correct unless the PNG files where generated locally.
+Most of the time the output precision will be so low as to show
+significant banding in dark areas of the image.
+
+ png_set_expand_16(pp);
+ png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_DEFAULT_sRGB);
+
+This is a somewhat more realistic Jim Blinn inspired approach. PNG files
+are assumed to have the sRGB encoding if not marked with a gamma value and
+the output is always 16 bits per component. This permits accurate scaling
+and processing of the data. If you know that your input PNG files were
+generated locally you might need to replace PNG_DEFAULT_sRGB with the
+correct value for your system.
+
+ png_set_alpha_mode(pp, PNG_ALPHA_OPTIMIZED, PNG_DEFAULT_sRGB);
+
+If you just need to composite the PNG image onto an existing background
+and if you control the code that does this you can use the optimization
+setting. In this case you just copy completely opaque pixels to the
+output. For pixels that are not completely transparent (you just skip
+those) you do the composition math using png_composite or png_composite_16
+below then encode the resultant 8-bit or 16-bit values to match the output
+encoding.
+
+ Other cases
+
+If neither the PNG nor the standard linear encoding work for you because
+of the software or hardware you use then you have a big problem. The PNG
+case will probably result in halos around the image. The linear encoding
+will probably result in a washed out, too bright, image (it's actually too
+contrasty.) Try the ALPHA_OPTIMIZED mode above - this will probably
+substantially reduce the halos. Alternatively try:
+
+ png_set_alpha_mode(pp, PNG_ALPHA_BROKEN, PNG_DEFAULT_sRGB);
+
+This option will also reduce the halos, but there will be slight dark
+halos round the opaque parts of the image where the background is light.
+In the OPTIMIZED mode the halos will be light halos where the background
+is dark. Take your pick - the halos are unavoidable unless you can get
+your hardware/software fixed! (The OPTIMIZED approach is slightly
+faster.)
+
+When the default gamma of PNG files doesn't match the output gamma.
+If you have PNG files with no gamma information png_set_alpha_mode allows
+you to provide a default gamma, but it also sets the ouput gamma to the
+matching value. If you know your PNG files have a gamma that doesn't
+match the output you can take advantage of the fact that
+png_set_alpha_mode always sets the output gamma but only sets the PNG
+default if it is not already set:
+
+ png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB);
+ png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC);
+
+The first call sets both the default and the output gamma values, the
+second call overrides the output gamma without changing the default. This
+is easier than achieving the same effect with png_set_gamma. You must use
+PNG_ALPHA_PNG for the first call - internal checking in png_set_alpha will
+fire if more than one call to png_set_alpha_mode and png_set_background is
+made in the same read operation, however multiple calls with PNG_ALPHA_PNG
+are ignored.
+
If you don't need, or can't handle, the alpha channel you can call
png_set_background() to remove it by compositing against a fixed color. Don't
call png_set_strip_alpha() to do this - it will leave spurious pixel values in
@@ -1720,7 +1888,7 @@
png_get_sRGB(png_ptr, info_ptr, &srgb_intent);
- file_srgb_intent - the rendering intent (PNG_INFO_sRGB)
+ srgb_intent - the rendering intent (PNG_INFO_sRGB)
The presence of the sRGB chunk
means that the pixel data is in the
sRGB color space. This chunk also
@@ -2670,10 +2838,15 @@
.SS Finishing a sequential read
After you are finished reading the image through the
-low-level interface, you can finish reading the file. If you are
-interested in comments or time, which may be stored either before or
-after the image data, you should pass the separate png_info struct if
-you want to keep the comments from before and after the image
+low-level interface, you can finish reading the file.
+
+If you want to use a different crc action for handling CRC errors in
+chunks after the image data, you can call png_set_crc_action()
+again at this point.
+
+If you are interested in comments or time, which may be stored either
+before or after the image data, you should pass the separate png_info
+struct if you want to keep the comments from before and after the image
separate.
png_infop end_info = png_create_info_struct(png_ptr);
@@ -2689,6 +2862,9 @@
If you are not interested, you should still call png_read_end()
but you can pass NULL, avoiding the need to create an end_info structure.
+If you do this, libpng will not process any chunks after IDAT other than
+skipping over them and perhaps (depending on whether you have called
+png_set_crc_action) checking their CRCs while looking for the IEND chunk.
png_read_end(png_ptr, (png_infop)NULL);
@@ -2723,13 +2899,13 @@
or simply PNG_FREE_ALL
seq - sequence number of item to be freed
- (-1 for all items)
+ (\-1 for all items)
This function may be safely called when the relevant storage has
already been freed, or has not yet been allocated, or was allocated
by the user and not by libpng, and will in those cases do nothing.
The "seq" parameter is ignored if only one item of the selected data
-type, such as PLTE, is allowed. If "seq" is not -1, and multiple items
+type, such as PLTE, is allowed. If "seq" is not \-1, and multiple items
are allowed for the data type identified in the mask, such as text or
sPLT, only the n'th item in the structure is freed, where n is "seq".
@@ -3130,7 +3306,7 @@
passed in row number, and pass will always be 0. For the interlaced case the
same applies unless the row value is 0, in which case the row just handled was
the last one from one of the preceding passes. Because interlacing may skip a
-pass you cannot be sure that the preceding pass is just 'pass-1', if you really
+pass you cannot be sure that the preceding pass is just 'pass\-1', if you really
need to know what the last pass is record (row,pass) from the callback and use
the last recorded value each time.
@@ -3970,13 +4146,13 @@
or simply PNG_FREE_ALL
seq - sequence number of item to be freed
- (-1 for all items)
+ (\-1 for all items)
This function may be safely called when the relevant storage has
already been freed, or has not yet been allocated, or was allocated
by the user and not by libpng, and will in those cases do nothing.
The "seq" parameter is ignored if only one item of the selected data
-type, such as PLTE, is allowed. If "seq" is not -1, and multiple items
+type, such as PLTE, is allowed. If "seq" is not \-1, and multiple items
are allowed for the data type identified in the mask, such as text or
sPLT, only the n'th item in the structure is freed, where n is "seq".
@@ -4039,7 +4215,7 @@
of both libpng and the PNG file format itself.
It allows PNG files to be read into a very limited number of
in-memory bitmap formats or to be written from the same formats. If these
-formats do not accomodate your needs then you can, and should, use the more
+formats do not accommodate your needs then you can, and should, use the more
sophisticated APIs above - these support a wide variety of in-memory formats
and a wide variety of sophisticated transformations to those formats as well
as a wide variety of APIs to manipulate ancilliary information.
@@ -4829,7 +5005,7 @@
Starting with libpng-1.6.0, you can configure libpng (when using the
"configure" script) to prefix all exported symbols by means of the
-configuration option "--with-libpng-prefix=FOO_", where FOO_ can be any
+configuration option "\-\-with\-libpng\-prefix=FOO_", where FOO_ can be any
string beginning with a letter and containing only uppercase
and lowercase letters, digits, and the underscore (i.e., a C language
identifier). This creates a set of macros in pnglibconf.h, so this is
@@ -4898,6 +5074,9 @@
name to force compilation errors with applications that try to use the old
method.
+Support for the sCAL, iCCP, iTXt, and sPLT chunks was added at libpng-1.0.6;
+however, iTXt support was not enabled by default.
+
Starting with version 1.0.7, you can find out which version of the library
you are using at run-time:
@@ -5114,7 +5293,7 @@
The code was not
removed, however, and could be enabled by building libpng with
PNG_READ_DITHER_SUPPORTED defined. In libpng-1.4.2, this support
-was reenabled, but the function was renamed png_set_quantize() to
+was re-enabled, but the function was renamed png_set_quantize() to
reflect more accurately what it actually does. At the same time,
the PNG_DITHER_[RED,GREEN_BLUE]_BITS macros were also renamed to
PNG_QUANTIZE_[RED,GREEN,BLUE]_BITS, and PNG_READ_DITHER_SUPPORTED
@@ -5126,12 +5305,13 @@
From libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the
function) incorrectly returned a value of type png_uint_32.
+The incorrect macro was removed from libpng-1.4.5.
-Checking for invalid palette index on read or write was added at libpng
-1.5.10. When an invalid index is found, libpng issues a benign error.
-This is enabled by default because this condition is an error according
-to the PNG specification, Clause 11.3.2, but the error can be ignored in
-each png_ptr with
+Checking for invalid palette index on write was added at libpng
+1.5.10. If a pixel contains an invalid (out-of-range) index libpng issues
+a benign error. This is enabled by default because this condition is an
+error according to the PNG specification, Clause 11.3.2, but the error can
+be ignored in each png_ptr with
png_set_check_for_invalid_index(png_ptr, allowed);
@@ -5152,7 +5332,7 @@
int max_palette = png_get_palette_max(png_ptr, info_ptr);
-This will return the maximum palette index found in the image, or "-1" if
+This will return the maximum palette index found in the image, or "\-1" if
the palette was not checked, or "0" if no palette was found. Note that this
does not account for any palette index used by ancillary chunks such as the
bKGD chunk; you must check those separately to determine the maximum
@@ -5230,7 +5410,10 @@
representation of these values. Consequently a "string" API
(png_get_sCAL_s and png_set_sCAL_s) is the only reliable way of reading
arbitrary sCAL chunks in the absence of either the floating point API or
-internal floating point calculations.
+internal floating point calculations. Starting with libpng-1.5.0, both
+of these functions are present when PNG_sCAL_SUPPORTED is defined. Prior
+to libpng-1.5.0, their presence also depended upon PNG_FIXED_POINT_SUPPORTED
+being defined and PNG_FLOATING_POINT_SUPPORTED not being defined.
Applications no longer need to include the optional distribution header
file pngusr.h or define the corresponding macros during application
@@ -5250,15 +5433,10 @@
These settings may produce compiler warnings or errors in 1.5.0 because
of macro redefinition.
-From libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the
-function) incorrectly returned a value of type png_uint_32. libpng 1.5.0
-is consistent with the implementation in 1.4.5 and 1.2.x (where the macro
-did not exist.)
-
Applications can now choose whether to use these macros or to call the
corresponding function by defining PNG_USE_READ_MACROS or
PNG_NO_USE_READ_MACROS before including png.h. Notice that this is
-only supported from 1.5.0 -defining PNG_NO_USE_READ_MACROS prior to 1.5.0
+only supported from 1.5.0; defining PNG_NO_USE_READ_MACROS prior to 1.5.0
will lead to a link failure.
Prior to libpng-1.5.4, the zlib compressor used the same set of parameters
@@ -5272,7 +5450,10 @@
This option can no longer be turned off, and the choice of accurate
or inaccurate 16-to-8 scaling is by using the new png_set_scale_16_to_8()
API for accurate scaling or the old png_set_strip_16_to_8() API for simple
-chopping.
+chopping. In libpng-1.5.4, the PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
+macro became PNG_READ_SCALE_16_TO_8_SUPPORTED, and the PNG_READ_16_TO_8
+macro became PNG_READ_STRIP_16_TO_8_SUPPORTED, to enable the two
+png_set_*_16_to_8() functions separately.
Prior to libpng-1.5.4, the png_set_user_limits() function could only be
used to reduce the width and height limits from the value of
@@ -5294,6 +5475,9 @@
png_user_chunk_cache_max 0 (unlimited) 128
png_user_chunk_malloc_max 0 (unlimited) 8,000,000
+The png_set_option() function (and the "options" member of the png struct) was
+added to libpng-1.5.15.
+
B. Changes to the build and configuration of libpng
Details of internal changes to the library code can be found in the CHANGES
@@ -5438,7 +5622,7 @@
build of pnglibconf.h and it is never included in an application build.
The rarely used alternative of adding a list of feature macros to the
-CFLAGS setting in the build also still works; however, the macros will be
+CPPFLAGS setting in the build also still works; however, the macros will be
copied to pnglibconf.h and this may produce macro redefinition warnings
when the individual C files are compiled.
@@ -5495,7 +5679,6 @@
png_info_init_3()
png_convert_to_rfc1123() which has been replaced
with png_convert_to_rfc1123_buffer()
- png_data_freer()
png_malloc_default()
png_free_default()
png_reset_zstream()
@@ -5517,10 +5700,11 @@
Error detection in some chunks has improved; in particular the iCCP chunk
reader now does pretty complete validation of the basic format. Some bad
-profiles that were previously accepted are now rejected, in particular the
-very old broken Microsoft/HP sRGB profile. The PNG spec requirement that
-only grayscale profiles may appear in images with color type 0 or 4 and that
-even if the image only contains gray pixels, only RGB profiles may appear
+profiles that were previously accepted are now accepted with a warning or
+rejected, depending upon the png_set_benign_errors() setting, in particular the
+very old broken Microsoft/HP 3144-byte sRGB profile. The PNG spec requirement
+that only grayscale profiles may appear in images with color type 0 or 4 and
+that even if the image only contains gray pixels, only RGB profiles may appear
in images with color type 2, 3, or 6, is now enforced. The sRGB chunk
is allowed to appear in images with any color type.
@@ -5529,7 +5713,9 @@
are allowed by the PNG specification, so these warnings are no longer issued.
The library now issues an error if the application attempts to set a
-transform after it calls png_read_update_info().
+transform after it calls png_read_update_info() or if it attempts to call
+both png_read_update_info() and png_start_read_image() or to call either
+of them more than once.
The default condition for benign_errors is now to treat benign errors as
warnings while reading and as errors while writing.
@@ -5550,14 +5736,19 @@
libpng16 and later of the GIT repository. They continue to be included
in the tarball releases, however.
-Libpng-1.6.0 and later use the CMF bytes at the beginning of the IDAT stream
-to set the size of the sliding window for reading instead of using the default
-32-kbyte sliding window size. It was discovered that there are hundreds of PNG
-files in the wild that have incorrect CMF bytes that cause libpng to now issue
-a "too far back" error and reject the file. Libpng-1.6.3 provides a way to
-revert to the libpng-1.5.x behavior (ignoring the CMF bytes and using a
-32-kbyte sliding window), and provides a tool
-(contrib/tools/png-fix-too-far-back) for optimizing the CMF bytes
+Libpng-1.6.0 through 1.6.2 used the CMF bytes at the beginning of the IDAT
+stream to set the size of the sliding window for reading instead of using the
+default 32-kbyte sliding window size. It was discovered that there are
+hundreds of PNG files in the wild that have incorrect CMF bytes that caused
+libpng to issue a "too far back" error and reject the file. Libpng-1.6.3 and
+later calculate their own safe CMF from the image dimensions, provide a way
+to revert to the libpng-1.5.x behavior (ignoring the CMF bytes and using a
+32-kbyte sliding window), by using
+
+ png_set_option(png_ptr, PNG_MAXIMUM_INFLATE_WINDOW,
+ PNG_OPTION_ON);
+
+and provide a tool (contrib/tools/pngfix) for optimizing the CMF bytes
correctly.
Libpng-1.6.0 and libpng-1.6.1 wrote uncompressed iTXt chunks with the wrong
@@ -5663,6 +5854,9 @@
body;
}
+The return type and decorations are placed on a separate line
+ahead of the function name, as illustrated above.
+
The prototypes for all exported functions appear in png.h,
above the comment that says
@@ -5706,7 +5900,7 @@
being cast, nor do we put one between a function name and the
left parenthesis that follows it:
- for (i = 2; i > 0; --i)
+ for (i = 2; i > 0; \-\-i)
y[i] = a(x) + (int)b;
We prefer #ifdef and #ifndef to #if defined() and #if !defined()
@@ -5727,13 +5921,13 @@
.SH XVI. Y2K Compliance in libpng
-July 18, 2013
+March 6, 2014
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.6.3 are Y2K compliant. It is my belief that earlier
+upward through 1.6.10 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant.
Libpng only has two year fields. One is a 2-byte unsigned integer
@@ -5950,6 +6144,23 @@
1.6.3beta01-11 16 10603 16.so.16.3[.0]
1.6.3rc01 16 10603 16.so.16.3[.0]
1.6.3 16 10603 16.so.16.3[.0]
+ 1.6.4beta01-02 16 10604 16.so.16.4[.0]
+ 1.6.4rc01 16 10604 16.so.16.4[.0]
+ 1.6.4 16 10604 16.so.16.4[.0]
+ 1.6.5 16 10605 16.so.16.5[.0]
+ 1.6.6 16 10606 16.so.16.6[.0]
+ 1.6.7beta01-04 16 10607 16.so.16.7[.0]
+ 1.6.7rc01-02 16 10607 16.so.16.7[.0]
+ 1.6.7 16 10607 16.so.16.7[.0]
+ 1.6.8beta01-02 16 10608 16.so.16.8[.0]
+ 1.6.8rc01-02 16 10608 16.so.16.8[.0]
+ 1.6.8 16 10608 16.so.16.8[.0]
+ 1.6.9beta01-04 16 10609 16.so.16.9[.0]
+ 1.6.9rc01-02 16 10609 16.so.16.9[.0]
+ 1.6.9 16 10609 16.so.16.9[.0]
+ 1.6.10beta01-03 16 10610 16.so.16.10[.0]
+ 1.6.10rc01-04 16 10610 16.so.16.10[.0]
+ 1.6.10 16 10610 16.so.16.10[.0]
Henceforth the source version will match the shared-library minor
and patch numbers; the shared-library major version number will be
@@ -6006,7 +6217,7 @@
Thanks to Frank J. T. Wojcik for helping with the documentation.
-Libpng version 1.6.3 - July 18, 2013:
+Libpng version 1.6.10 - March 6, 2014:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
@@ -6029,7 +6240,7 @@
This code is released under the libpng license.
-libpng versions 1.2.6, August 15, 2004, through 1.6.3, July 18, 2013, are
+libpng versions 1.2.6, August 15, 2004, through 1.6.10, March 6, 2014, are
Copyright (c) 2004,2006-2007 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.2.5
with the following individual added to the list of Contributing Authors
@@ -6128,7 +6339,7 @@
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
-July 18, 2013
+March 6, 2014
.\" end of man page
diff --git a/libpngpf.3 b/libpngpf.3
index 15419f4..844a9fc 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,6 +1,6 @@
-.TH LIBPNGPF 3 "July 18, 2013"
+.TH LIBPNGPF 3 "March 6, 2014"
.SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.6.3
+libpng \- Portable Network Graphics (PNG) Reference Library 1.6.10
(private functions)
.SH SYNOPSIS
\fB#include \fI"pngpriv.h"
diff --git a/missing b/missing
index ed429b4..db98974 100755
--- a/missing
+++ b/missing
@@ -1,9 +1,9 @@
#! /bin/sh
# Common wrapper for a few potentially missing GNU programs.
-scriptversion=2012-06-26.16; # UTC
+scriptversion=2013-10-28.13; # UTC
-# Copyright (C) 1996-2012 Free Software Foundation, Inc.
+# Copyright (C) 1996-2013 Free Software Foundation, Inc.
# Originally written by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
# This program is free software; you can redistribute it and/or modify
@@ -160,7 +160,7 @@
;;
autom4te*)
echo "You might have modified some maintainer files that require"
- echo "the 'automa4te' program to be rebuilt."
+ echo "the 'autom4te' program to be rebuilt."
program_details 'autom4te'
;;
bison*|yacc*)
diff --git a/png.5 b/png.5
index eaefa29..3beacfa 100644
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "July 18, 2013"
+.TH PNG 5 "March 6, 2014"
.SH NAME
png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION
diff --git a/png.c b/png.c
index 7341881..0cb4a1d 100644
--- a/png.c
+++ b/png.c
@@ -1,8 +1,8 @@
/* png.c - location for general purpose libpng functions
*
- * Last changed in libpng 1.6.2 [April 25, 2013]
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.9 [February 6, 2014]
+ * Copyright (c) 1998-2014 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@ -14,7 +14,7 @@
#include "pngpriv.h"
/* Generate a compiler error if there is an old png.h in the search path. */
-typedef png_libpng_version_1_6_3 Your_png_h_is_not_version_1_6_3;
+typedef png_libpng_version_1_6_10 Your_png_h_is_not_version_1_6_10;
/* Tells libpng that we have already handled the first "num_bytes" bytes
* of the PNG file signature. If the PNG data is embedded into another
@@ -201,6 +201,7 @@
pos = png_safecat(m, (sizeof m), pos, user_png_ver);
pos = png_safecat(m, (sizeof m), pos, " but running with ");
pos = png_safecat(m, (sizeof m), pos, png_libpng_ver);
+ PNG_UNUSED(pos)
png_warning(png_ptr, m);
#endif
@@ -259,6 +260,10 @@
*/
# ifdef PNG_USER_MEM_SUPPORTED
png_set_mem_fn(&create_struct, mem_ptr, malloc_fn, free_fn);
+# else
+ PNG_UNUSED(mem_ptr)
+ PNG_UNUSED(malloc_fn)
+ PNG_UNUSED(free_fn)
# endif
/* (*error_fn) can return control to the caller after the error_ptr is set,
@@ -768,14 +773,14 @@
#else
# ifdef __STDC__
return PNG_STRING_NEWLINE \
- "libpng version 1.6.3 - July 18, 2013" PNG_STRING_NEWLINE \
- "Copyright (c) 1998-2013 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
+ "libpng version 1.6.10 - March 6, 2014" PNG_STRING_NEWLINE \
+ "Copyright (c) 1998-2014 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
"Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
PNG_STRING_NEWLINE;
# else
- return "libpng version 1.6.3 - July 18, 2013\
- Copyright (c) 1998-2013 Glenn Randers-Pehrson\
+ return "libpng version 1.6.10 - March 6, 2014\
+ Copyright (c) 1998-2014 Glenn Randers-Pehrson\
Copyright (c) 1996-1997 Andreas Dilger\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
# endif
@@ -821,6 +826,63 @@
#endif
}
+#ifdef PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED
+/* NOTE: this routine is not used internally! */
+/* Build a grayscale palette. Palette is assumed to be 1 << bit_depth
+ * large of png_color. This lets grayscale images be treated as
+ * paletted. Most useful for gamma correction and simplification
+ * of code. This API is not used internally.
+ */
+void PNGAPI
+png_build_grayscale_palette(int bit_depth, png_colorp palette)
+{
+ int num_palette;
+ int color_inc;
+ int i;
+ int v;
+
+ png_debug(1, "in png_do_build_grayscale_palette");
+
+ if (palette == NULL)
+ return;
+
+ switch (bit_depth)
+ {
+ case 1:
+ num_palette = 2;
+ color_inc = 0xff;
+ break;
+
+ case 2:
+ num_palette = 4;
+ color_inc = 0x55;
+ break;
+
+ case 4:
+ num_palette = 16;
+ color_inc = 0x11;
+ break;
+
+ case 8:
+ num_palette = 256;
+ color_inc = 1;
+ break;
+
+ default:
+ num_palette = 0;
+ color_inc = 0;
+ break;
+ }
+
+ for (i = 0, v = 0; i < num_palette; i++, v += color_inc)
+ {
+ palette[i].red = (png_byte)v;
+ palette[i].green = (png_byte)v;
+ palette[i].blue = (png_byte)v;
+ }
+}
+#endif
+
#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
int PNGAPI
png_handle_as_unknown(png_const_structrp png_ptr, png_const_bytep chunk_name)
@@ -855,7 +917,8 @@
return PNG_HANDLE_CHUNK_AS_DEFAULT;
}
-#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
+#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) ||\
+ defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED)
int /* PRIVATE */
png_chunk_unknown_handling(png_const_structrp png_ptr, png_uint_32 chunk_name)
{
@@ -864,7 +927,7 @@
PNG_CSTRING_FROM_CHUNK(chunk_string, chunk_name);
return png_handle_as_unknown(png_ptr, chunk_string);
}
-#endif /* READ_UNKNOWN_CHUNKS */
+#endif /* READ_UNKNOWN_CHUNKS || HANDLE_AS_UNKNOWN */
#endif /* SET_UNKNOWN_CHUNKS */
#ifdef PNG_READ_SUPPORTED
@@ -1679,7 +1742,8 @@
(it >= 97 && it <= 122);
}
-static int is_ICC_signature(png_alloc_size_t it)
+static int
+is_ICC_signature(png_alloc_size_t it)
{
return is_ICC_signature_char(it >> 24) /* checks all the top bits */ &&
is_ICC_signature_char((it >> 16) & 0xff) &&
@@ -1721,6 +1785,7 @@
# endif
/* The 'reason' is an arbitrary message, allow +79 maximum 195 */
pos = png_safecat(message, (sizeof message), pos, reason);
+ PNG_UNUSED(pos)
/* This is recoverable, but make it unconditionally an app_error on write to
* avoid writing invalid ICC profiles into PNG files. (I.e. we handle them
@@ -2231,15 +2296,16 @@
}
}
-# if PNG_sRGB_PROFILE_CHECKS > 0
- /* The signature matched, but the profile had been changed in some
- * way. This is an apparent violation of the ICC terms of use and,
- * anyway, probably indicates a data error or uninformed hacking.
- */
- if (png_sRGB_checks[i].have_md5)
- png_benign_error(png_ptr,
- "copyright violation: edited ICC profile ignored");
-# endif
+# if PNG_sRGB_PROFILE_CHECKS > 0
+ /* The signature matched, but the profile had been changed in some
+ * way. This probably indicates a data error or uninformed hacking.
+ * Fall through to "no match".
+ */
+ png_chunk_report(png_ptr,
+ "Not recognizing known sRGB profile that has been edited",
+ PNG_CHUNK_WARNING);
+ break;
+# endif
}
}
@@ -2409,14 +2475,6 @@
error = 1;
}
- if (width > (PNG_UINT_32_MAX
- >> 3) /* 8-byte RGBA pixels */
- - 48 /* bigrowbuf hack */
- - 1 /* filter byte */
- - 7*8 /* rounding of width to multiple of 8 pixels */
- - 8) /* extra max_pixel_depth pad */
- png_warning(png_ptr, "Width is too large for libpng to process pixels");
-
/* Check other values */
if (bit_depth != 1 && bit_depth != 2 && bit_depth != 4 &&
bit_depth != 8 && bit_depth != 16)
@@ -3090,11 +3148,15 @@
if (r > 2147483647. || r < -2147483648.)
png_fixed_error(png_ptr, text);
+# ifndef PNG_ERROR_TEXT_SUPPORTED
+ PNG_UNUSED(text)
+# endif
+
return (png_fixed_point)r;
}
#endif
-#if defined(PNG_READ_GAMMA_SUPPORTED) || \
+#if defined(PNG_GAMMA_SUPPORTED) || defined(PNG_COLORSPACE_SUPPORTED) ||\
defined(PNG_INCH_CONVERSIONS_SUPPORTED) || defined(PNG_READ_pHYs_SUPPORTED)
/* muldiv functions */
/* This API takes signed arguments and rounds the result to the nearest
@@ -3267,27 +3329,29 @@
#endif
#ifdef PNG_READ_GAMMA_SUPPORTED
+# ifdef PNG_16BIT_SUPPORTED
/* A local convenience routine. */
static png_fixed_point
png_product2(png_fixed_point a, png_fixed_point b)
{
/* The required result is 1/a * 1/b; the following preserves accuracy. */
-#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
+# ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
double r = a * 1E-5;
r *= b;
r = floor(r+.5);
if (r <= 2147483647. && r >= -2147483648.)
return (png_fixed_point)r;
-#else
+# else
png_fixed_point res;
if (png_muldiv(&res, a, b, 100000))
return res;
-#endif
+# endif
return 0; /* overflow */
}
+# endif /* 16BIT */
/* The inverse of the above. */
png_fixed_point
@@ -3592,6 +3656,7 @@
return (png_byte)((x + 0x7fffffU) >> 24);
}
+#ifdef PNG_16BIT_SUPPORTED
static png_uint_16
png_exp16bit(png_fixed_point lg2)
{
@@ -3602,6 +3667,7 @@
x -= x >> 16;
return (png_uint_16)((x + 32767U) >> 16);
}
+#endif /* 16BIT */
#endif /* FLOATING_ARITHMETIC */
png_byte
@@ -3627,6 +3693,7 @@
return (png_byte)value;
}
+#ifdef PNG_16BIT_SUPPORTED
png_uint_16
png_gamma_16bit_correct(unsigned int value, png_fixed_point gamma_val)
{
@@ -3649,6 +3716,7 @@
return (png_uint_16)value;
}
+#endif /* 16BIT */
/* This does the right thing based on the bit_depth field of the
* png_struct, interpreting values as 8-bit or 16-bit. While the result
@@ -3662,10 +3730,16 @@
if (png_ptr->bit_depth == 8)
return png_gamma_8bit_correct(value, gamma_val);
+#ifdef PNG_16BIT_SUPPORTED
else
return png_gamma_16bit_correct(value, gamma_val);
+#else
+ /* should not reach this */
+ return 0;
+#endif /* 16BIT */
}
+#ifdef PNG_16BIT_SUPPORTED
/* Internal function to build a single 16-bit table - the table consists of
* 'num' 256 entry subtables, where 'num' is determined by 'shift' - the amount
* to shift the input values right (or 16-number_of_signifiant_bits).
@@ -3804,6 +3878,7 @@
last++;
}
}
+#endif /* 16BIT */
/* Build a single 8-bit table: same as the 16-bit case but much simpler (and
* typically much faster). Note that libpng currently does no sBIT processing
@@ -3832,6 +3907,7 @@
png_free(png_ptr, png_ptr->gamma_table);
png_ptr->gamma_table = NULL;
+#ifdef PNG_16BIT_SUPPORTED
if (png_ptr->gamma_16_table != NULL)
{
int i;
@@ -3843,6 +3919,7 @@
png_free(png_ptr, png_ptr->gamma_16_table);
png_ptr->gamma_16_table = NULL;
}
+#endif /* 16BIT */
#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \
defined(PNG_READ_ALPHA_MODE_SUPPORTED) || \
@@ -3852,6 +3929,7 @@
png_free(png_ptr, png_ptr->gamma_to_1);
png_ptr->gamma_to_1 = NULL;
+#ifdef PNG_16BIT_SUPPORTED
if (png_ptr->gamma_16_from_1 != NULL)
{
int i;
@@ -3874,6 +3952,7 @@
png_free(png_ptr, png_ptr->gamma_16_to_1);
png_ptr->gamma_16_to_1 = NULL;
}
+#endif /* 16BIT */
#endif /* READ_BACKGROUND || READ_ALPHA_MODE || RGB_TO_GRAY */
}
@@ -3919,6 +3998,7 @@
}
#endif /* READ_BACKGROUND || READ_ALPHA_MODE || RGB_TO_GRAY */
}
+#ifdef PNG_16BIT_SUPPORTED
else
{
png_byte shift, sig_bit;
@@ -3975,24 +4055,20 @@
png_ptr->gamma_shift = shift;
-#ifdef PNG_16BIT_SUPPORTED
/* NOTE: prior to 1.5.4 this test used to include PNG_BACKGROUND (now
* PNG_COMPOSE). This effectively smashed the background calculation for
* 16-bit output because the 8-bit table assumes the result will be reduced
* to 8 bits.
*/
if (png_ptr->transformations & (PNG_16_TO_8 | PNG_SCALE_16_TO_8))
-#endif
png_build_16to8_table(png_ptr, &png_ptr->gamma_16_table, shift,
png_ptr->screen_gamma > 0 ? png_product2(png_ptr->colorspace.gamma,
png_ptr->screen_gamma) : PNG_FP_1);
-#ifdef PNG_16BIT_SUPPORTED
else
png_build_16bit_table(png_ptr, &png_ptr->gamma_16_table, shift,
png_ptr->screen_gamma > 0 ? png_reciprocal2(png_ptr->colorspace.gamma,
png_ptr->screen_gamma) : PNG_FP_1);
-#endif
#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \
defined(PNG_READ_ALPHA_MODE_SUPPORTED) || \
@@ -4012,6 +4088,7 @@
}
#endif /* READ_BACKGROUND || READ_ALPHA_MODE || RGB_TO_GRAY */
}
+#endif /* 16BIT */
}
#endif /* READ_GAMMA */
diff --git a/png.h b/png.h
index e251007..57141d5 100644
--- a/png.h
+++ b/png.h
@@ -1,8 +1,8 @@
/* png.h - header file for PNG reference library
*
- * libpng version 1.6.3 - July 18, 2013
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * libpng version 1.6.10 - March 6, 2014
+ * Copyright (c) 1998-2014 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@ -11,7 +11,7 @@
* Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
* libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
- * libpng versions 0.97, January 1998, through 1.6.3 - July 18, 2013: Glenn
+ * libpng versions 0.97, January 1998, through 1.6.10 - March 6, 2014: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@@ -178,6 +178,23 @@
* 1.6.3beta01-11 16 10603 16.so.16.3[.0]
* 1.6.3rc01 16 10603 16.so.16.3[.0]
* 1.6.3 16 10603 16.so.16.3[.0]
+ * 1.6.4beta01-02 16 10604 16.so.16.4[.0]
+ * 1.6.4rc01 16 10604 16.so.16.4[.0]
+ * 1.6.4 16 10604 16.so.16.4[.0]
+ * 1.6.5 16 10605 16.so.16.5[.0]
+ * 1.6.6 16 10606 16.so.16.6[.0]
+ * 1.6.7beta01-04 16 10607 16.so.16.7[.0]
+ * 1.6.7rc01-03 16 10607 16.so.16.7[.0]
+ * 1.6.7 16 10607 16.so.16.7[.0]
+ * 1.6.8beta01-02 16 10608 16.so.16.8[.0]
+ * 1.6.8rc01-02 16 10608 16.so.16.8[.0]
+ * 1.6.8 16 10608 16.so.16.8[.0]
+ * 1.6.9beta01-04 16 10609 16.so.16.9[.0]
+ * 1.6.9rc01-02 16 10609 16.so.16.9[.0]
+ * 1.6.9 16 10609 16.so.16.9[.0]
+ * 1.6.10beta01-03 16 10610 16.so.16.10[.0]
+ * 1.6.10betarc01-04 16 10610 16.so.16.10[.0]
+ * 1.6.10beta 16 10610 16.so.16.10[.0]
*
* Henceforth the source version will match the shared-library major
* and minor numbers; the shared-library major version number will be
@@ -209,7 +226,7 @@
*
* This code is released under the libpng license.
*
- * libpng versions 1.2.6, August 15, 2004, through 1.6.3, July 18, 2013, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.6.10, March 6, 2014, are
* Copyright (c) 2004, 2006-2013 Glenn Randers-Pehrson, and are
* distributed according to the same disclaimer and license as libpng-1.2.5
* with the following individual added to the list of Contributing Authors:
@@ -321,13 +338,13 @@
* Y2K compliance in libpng:
* =========================
*
- * July 18, 2013
+ * March 6, 2014
*
* Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration.
*
* This is your unofficial assurance that libpng from version 0.71 and
- * upward through 1.6.3 are Y2K compliant. It is my belief that
+ * upward through 1.6.10 are Y2K compliant. It is my belief that
* earlier versions were also Y2K compliant.
*
* Libpng only has two year fields. One is a 2-byte unsigned integer
@@ -387,9 +404,9 @@
*/
/* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.6.3"
+#define PNG_LIBPNG_VER_STRING "1.6.10"
#define PNG_HEADER_VERSION_STRING \
- " libpng version 1.6.3 - July 18, 2013\n"
+ " libpng version 1.6.10 - March 6, 2014\n"
#define PNG_LIBPNG_VER_SONUM 16
#define PNG_LIBPNG_VER_DLLNUM 16
@@ -397,7 +414,7 @@
/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
#define PNG_LIBPNG_VER_MAJOR 1
#define PNG_LIBPNG_VER_MINOR 6
-#define PNG_LIBPNG_VER_RELEASE 3
+#define PNG_LIBPNG_VER_RELEASE 10
/* This should match the numeric part of the final component of
* PNG_LIBPNG_VER_STRING, omitting any leading zero:
@@ -428,7 +445,7 @@
* version 1.0.0 was mis-numbered 100 instead of 10000). From
* version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release
*/
-#define PNG_LIBPNG_VER 10603 /* 1.6.3 */
+#define PNG_LIBPNG_VER 10610 /* 1.6.10 */
/* Library configuration: these options cannot be changed after
* the library has been built.
@@ -533,7 +550,7 @@
/* This triggers a compiler error in png.c, if png.c and png.h
* do not agree upon the version number.
*/
-typedef char* png_libpng_version_1_6_3;
+typedef char* png_libpng_version_1_6_10;
/* Basic control structions. Read libpng-manual.txt or libpng.3 for more info.
*
@@ -715,7 +732,8 @@
typedef const png_time * png_const_timep;
typedef png_time * * png_timepp;
-#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
+#if defined(PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED) ||\
+ defined(PNG_USER_CHUNKS_SUPPORTED)
/* png_unknown_chunk is a structure to hold queued chunks for which there is
* no specific support. The idea is that we can use this to queue
* up private chunks for output even though the library doesn't actually
@@ -1198,9 +1216,9 @@
#endif
#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
-/* How the alpha channel is interpreted - this affects how the color channels of
- * a PNG file are returned when an alpha channel, or tRNS chunk in a palette
- * file, is present.
+/* How the alpha channel is interpreted - this affects how the color channels
+ * of a PNG file are returned to the calling application when an alpha channel,
+ * or a tRNS chunk in a palette file, is present.
*
* This has no effect on the way pixels are written into a PNG output
* datastream. The color samples in a PNG datastream are never premultiplied
@@ -1208,33 +1226,19 @@
*
* The default is to return data according to the PNG specification: the alpha
* channel is a linear measure of the contribution of the pixel to the
- * corresponding composited pixel. The gamma encoded color channels must be
- * scaled according to the contribution and to do this it is necessary to undo
+ * corresponding composited pixel, and the color channels are unassociated
+ * (not premultiplied). The gamma encoded color channels must be scaled
+ * according to the contribution and to do this it is necessary to undo
* the encoding, scale the color values, perform the composition and reencode
* the values. This is the 'PNG' mode.
*
* The alternative is to 'associate' the alpha with the color information by
- * storing color channel values that have been scaled by the alpha. The
- * advantage is that the color channels can be resampled (the image can be
- * scaled) in this form. The disadvantage is that normal practice is to store
- * linear, not (gamma) encoded, values and this requires 16-bit channels for
- * still images rather than the 8-bit channels that are just about sufficient if
- * gamma encoding is used. In addition all non-transparent pixel values,
- * including completely opaque ones, must be gamma encoded to produce the final
- * image. This is the 'STANDARD', 'ASSOCIATED' or 'PREMULTIPLIED' mode (the
- * latter being the two common names for associated alpha color channels.)
+ * storing color channel values that have been scaled by the alpha.
+ * image. These are the 'STANDARD', 'ASSOCIATED' or 'PREMULTIPLIED' modes
+ * (the latter being the two common names for associated alpha color channels).
*
- * Since it is not necessary to perform arithmetic on opaque color values so
- * long as they are not to be resampled and are in the final color space it is
- * possible to optimize the handling of alpha by storing the opaque pixels in
- * the PNG format (adjusted for the output color space) while storing partially
- * opaque pixels in the standard, linear, format. The accuracy required for
- * standard alpha composition is relatively low, because the pixels are
- * isolated, therefore typically the accuracy loss in storing 8-bit linear
- * values is acceptable. (This is not true if the alpha channel is used to
- * simulate transparency over large areas - use 16 bits or the PNG mode in
- * this case!) This is the 'OPTIMIZED' mode. For this mode a pixel is
- * treated as opaque only if the alpha value is equal to the maximum value.
+ * For the 'OPTIMIZED' mode, a pixel is treated as opaque only if the alpha
+ * value is equal to the maximum value.
*
* The final choice is to gamma encode the alpha channel as well. This is
* broken because, in practice, no implementation that uses this choice
@@ -1261,68 +1265,7 @@
#if defined(PNG_GAMMA_SUPPORTED) || defined(PNG_READ_ALPHA_MODE_SUPPORTED)
/* The output_gamma value is a screen gamma in libpng terminology: it expresses
- * how to decode the output values, not how they are encoded. The values used
- * correspond to the normal numbers used to describe the overall gamma of a
- * computer display system; for example 2.2 for an sRGB conformant system. The
- * values are scaled by 100000 in the _fixed version of the API (so 220000 for
- * sRGB.)
- *
- * The inverse of the value is always used to provide a default for the PNG file
- * encoding if it has no gAMA chunk and if png_set_gamma() has not been called
- * to override the PNG gamma information.
- *
- * When the ALPHA_OPTIMIZED mode is selected the output gamma is used to encode
- * opaque pixels however pixels with lower alpha values are not encoded,
- * regardless of the output gamma setting.
- *
- * When the standard Porter Duff handling is requested with mode 1 the output
- * encoding is set to be linear and the output_gamma value is only relevant
- * as a default for input data that has no gamma information. The linear output
- * encoding will be overridden if png_set_gamma() is called - the results may be
- * highly unexpected!
- *
- * The following numbers are derived from the sRGB standard and the research
- * behind it. sRGB is defined to be approximated by a PNG gAMA chunk value of
- * 0.45455 (1/2.2) for PNG. The value implicitly includes any viewing
- * correction required to take account of any differences in the color
- * environment of the original scene and the intended display environment; the
- * value expresses how to *decode* the image for display, not how the original
- * data was *encoded*.
- *
- * sRGB provides a peg for the PNG standard by defining a viewing environment.
- * sRGB itself, and earlier TV standards, actually use a more complex transform
- * (a linear portion then a gamma 2.4 power law) than PNG can express. (PNG is
- * limited to simple power laws.) By saying that an image for direct display on
- * an sRGB conformant system should be stored with a gAMA chunk value of 45455
- * (11.3.3.2 and 11.3.3.5 of the ISO PNG specification) the PNG specification
- * makes it possible to derive values for other display systems and
- * environments.
- *
- * The Mac value is deduced from the sRGB based on an assumption that the actual
- * extra viewing correction used in early Mac display systems was implemented as
- * a power 1.45 lookup table.
- *
- * Any system where a programmable lookup table is used or where the behavior of
- * the final display device characteristics can be changed requires system
- * specific code to obtain the current characteristic. However this can be
- * difficult and most PNG gamma correction only requires an approximate value.
- *
- * By default, if png_set_alpha_mode() is not called, libpng assumes that all
- * values are unencoded, linear, values and that the output device also has a
- * linear characteristic. This is only very rarely correct - it is invariably
- * better to call png_set_alpha_mode() with PNG_DEFAULT_sRGB than rely on the
- * default if you don't know what the right answer is!
- *
- * The special value PNG_GAMMA_MAC_18 indicates an older Mac system (pre Mac OS
- * 10.6) which used a correction table to implement a somewhat lower gamma on an
- * otherwise sRGB system.
- *
- * Both these values are reserved (not simple gamma values) in order to allow
- * more precise correction internally in the future.
- *
- * NOTE: the following values can be passed to either the fixed or floating
- * point APIs, but the floating point API will also accept floating point
- * values.
+ * how to decode the output values, not how they are encoded.
*/
#define PNG_DEFAULT_sRGB -1 /* sRGB gamma and color space */
#define PNG_GAMMA_MAC_18 -2 /* Old Mac '1.8' gamma and color space */
@@ -1945,8 +1888,8 @@
* It is unlikely that this function works correctly as of 1.6.0 and using it
* may result either in memory leaks or double free of allocated data.
*/
-PNG_EXPORTA(99, void, png_data_freer, (png_const_structrp png_ptr,
- png_inforp info_ptr, int freer, png_uint_32 mask), PNG_DEPRECATED);
+PNG_EXPORT(99, void, png_data_freer, (png_const_structrp png_ptr,
+ png_inforp info_ptr, int freer, png_uint_32 mask));
#ifdef PNG_INDEX_SUPPORTED
/* Build image index for partial image decoding. */
@@ -2002,6 +1945,8 @@
#else
/* Fatal error in PNG image of libpng - can't continue */
PNG_EXPORTA(104, void, png_err, (png_const_structrp png_ptr), PNG_NORETURN);
+# define png_error(s1,s2) png_err(s1)
+# define png_chunk_error(s1,s2) png_err(s1)
#endif
#ifdef PNG_WARNINGS_SUPPORTED
@@ -2012,6 +1957,9 @@
/* Non-fatal error in libpng, chunk name is prepended to message. */
PNG_EXPORT(106, void, png_chunk_warning, (png_const_structrp png_ptr,
png_const_charp warning_message));
+#else
+# define png_warning(s1,s2) ((void)(s1))
+# define png_chunk_warning(s1,s2) ((void)(s1))
#endif
#ifdef PNG_BENIGN_ERRORS_SUPPORTED
@@ -2522,11 +2470,15 @@
#ifdef PNG_INFO_IMAGE_SUPPORTED
/* The "params" pointer is currently not used and is for future expansion. */
+#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
PNG_EXPORT(178, void, png_read_png, (png_structrp png_ptr, png_inforp info_ptr,
int transforms, png_voidp params));
+#endif
+#ifdef PNG_WRITE_SUPPORTED
PNG_EXPORT(179, void, png_write_png, (png_structrp png_ptr, png_inforp info_ptr,
int transforms, png_voidp params));
#endif
+#endif
PNG_EXPORT(180, png_const_charp, png_get_copyright,
(png_const_structrp png_ptr));
diff --git a/pngconf.h b/pngconf.h
index 0808c1c..afc0ead 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,7 +1,7 @@
/* pngconf.h - machine configurable file for libpng
*
- * libpng version 1.6.3 - July 18, 2013
+ * libpng version 1.6.10 - March 6, 2014
*
* Copyright (c) 1998-2013 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -361,7 +361,33 @@
* version 1.2.41. Disabling these removes the warnings but may also produce
* less efficient code.
*/
-# if defined(__GNUC__)
+# if defined(__clang__)
+ /* Clang defines both __clang__ and __GNUC__. Check __clang__ first. */
+# if !defined(PNG_USE_RESULT) && __has_attribute(__warn_unused_result__)
+# define PNG_USE_RESULT __attribute__((__warn_unused_result__))
+# endif
+# if !defined(PNG_NORETURN) && __has_attribute(__noreturn__)
+# define PNG_NORETURN __attribute__((__noreturn__))
+# endif
+# if !defined(PNG_ALLOCATED) && __has_attribute(__malloc__)
+# define PNG_ALLOCATED __attribute__((__malloc__))
+# endif
+# if !defined(PNG_DEPRECATED) && __has_attribute(__deprecated__)
+# define PNG_DEPRECATED __attribute__((__deprecated__))
+# endif
+# if !defined(PNG_PRIVATE)
+# ifdef __has_extension
+# if __has_extension(attribute_unavailable_with_message)
+# define PNG_PRIVATE __attribute__((__unavailable__(\
+ "This function is not exported by libpng.")))
+# endif
+# endif
+# endif
+# ifndef PNG_RESTRICT
+# define PNG_RESTRICT __restrict
+# endif
+
+# elif defined(__GNUC__)
# ifndef PNG_USE_RESULT
# define PNG_USE_RESULT __attribute__((__warn_unused_result__))
# endif
@@ -384,12 +410,12 @@
__attribute__((__deprecated__))
# endif
# endif
-# if ((__GNUC__ != 3) || !defined(__GNUC_MINOR__) || (__GNUC_MINOR__ >= 1))
+# if ((__GNUC__ > 3) || !defined(__GNUC_MINOR__) || (__GNUC_MINOR__ >= 1))
# ifndef PNG_RESTRICT
# define PNG_RESTRICT __restrict
# endif
-# endif /* __GNUC__ == 3.0 */
-# endif /* __GNUC__ >= 3 */
+# endif /* __GNUC__.__GNUC_MINOR__ > 3.0 */
+# endif /* __GNUC__ >= 3 */
# elif defined(_MSC_VER) && (_MSC_VER >= 1300)
# ifndef PNG_USE_RESULT
@@ -419,7 +445,7 @@
# ifndef PNG_RESTRICT
# define PNG_RESTRICT __restrict
# endif
-# endif /* _MSC_VER */
+# endif
#endif /* PNG_PEDANTIC_WARNINGS */
#ifndef PNG_DEPRECATED
@@ -440,6 +466,7 @@
#ifndef PNG_RESTRICT
# define PNG_RESTRICT /* The C99 "restrict" feature */
#endif
+
#ifndef PNG_FP_EXPORT /* A floating point API. */
# ifdef PNG_FLOATING_POINT_SUPPORTED
# define PNG_FP_EXPORT(ordinal, type, name, args)\
diff --git a/pngdebug.h b/pngdebug.h
index 16f81fd..b43c59c 100644
--- a/pngdebug.h
+++ b/pngdebug.h
@@ -1,11 +1,11 @@
/* pngdebug.h - Debugging macros for libpng, also used in pngtest.c
*
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2013 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
- * Last changed in libpng 1.5.0 [January 6, 2011]
+ * Last changed in libpng 1.6.8 [December 19, 2013]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
@@ -25,7 +25,7 @@
* (actually ((void)0)).
*
* level: level of detail of message, starting at 0. A level 'n'
- * message is preceded by 'n' tab characters (not implemented
+ * message is preceded by 'n' 3-space indentations (not implemented
* on Microsoft compilers unless PNG_DEBUG_FILE is also
* defined, to allow debug DLL compilation with no standard IO).
* message: a printf(3) style text string. A trailing '\n' is added
@@ -77,32 +77,29 @@
# endif /* PNG_DEBUG_FILE */
# if (PNG_DEBUG > 1)
-/* Note: ["%s"m PNG_STRING_NEWLINE] probably does not work on
- * non-ISO compilers
- */
# ifdef __STDC__
# ifndef png_debug
# define png_debug(l,m) \
do { \
int num_tabs=l; \
- fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \
- (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":"")))); \
+ fprintf(PNG_DEBUG_FILE,"%s" m PNG_STRING_NEWLINE,(num_tabs==1 ? " " : \
+ (num_tabs==2 ? " " : (num_tabs>2 ? " " : "")))); \
} while (0)
# endif
# ifndef png_debug1
# define png_debug1(l,m,p1) \
do { \
int num_tabs=l; \
- fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \
- (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1); \
+ fprintf(PNG_DEBUG_FILE,"%s" m PNG_STRING_NEWLINE,(num_tabs==1 ? " " : \
+ (num_tabs==2 ? " " : (num_tabs>2 ? " " : ""))),p1); \
} while (0)
# endif
# ifndef png_debug2
# define png_debug2(l,m,p1,p2) \
do { \
int num_tabs=l; \
- fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \
- (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1,p2); \
+ fprintf(PNG_DEBUG_FILE,"%s" m PNG_STRING_NEWLINE,(num_tabs==1 ? " " : \
+ (num_tabs==2 ? " " : (num_tabs>2 ? " " : ""))),p1,p2);\
} while (0)
# endif
# else /* __STDC __ */
diff --git a/pngerror.c b/pngerror.c
index f469206..5876b47 100644
--- a/pngerror.c
+++ b/pngerror.c
@@ -1,8 +1,8 @@
/* pngerror.c - stub functions for i/o and memory allocation
*
- * Last changed in libpng 1.6.1 [March 28, 2013]
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.10 [March 6, 2014]
+ * Copyright (c) 1998-2014 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@ -382,6 +382,10 @@
# endif
png_error(png_ptr, error_message);
}
+
+# ifndef PNG_ERROR_TEXT_SUPPORTED
+ PNG_UNUSED(error_message)
+# endif
}
void /* PRIVATE */
@@ -391,6 +395,10 @@
png_warning(png_ptr, error_message);
else
png_error(png_ptr, error_message);
+
+# ifndef PNG_ERROR_TEXT_SUPPORTED
+ PNG_UNUSED(error_message)
+# endif
}
void /* PRIVATE */
@@ -400,6 +408,10 @@
png_warning(png_ptr, error_message);
else
png_error(png_ptr, error_message);
+
+# ifndef PNG_ERROR_TEXT_SUPPORTED
+ PNG_UNUSED(error_message)
+# endif
}
#endif /* BENIGN_ERRORS */
@@ -416,7 +428,8 @@
};
#define PNG_MAX_ERROR_TEXT 196 /* Currently limited be profile_error in png.c */
-#if defined(PNG_WARNINGS_SUPPORTED) || defined(PNG_ERROR_TEXT_SUPPORTED)
+#if defined(PNG_WARNINGS_SUPPORTED) || \
+ (defined(PNG_READ_SUPPORTED) && defined(PNG_ERROR_TEXT_SUPPORTED))
static void /* PRIVATE */
png_format_buffer(png_const_structrp png_ptr, png_charp buffer, png_const_charp
error_message)
@@ -506,6 +519,10 @@
else
png_chunk_error(png_ptr, error_message);
+
+# ifndef PNG_ERROR_TEXT_SUPPORTED
+ PNG_UNUSED(error_message)
+# endif
}
#endif
#endif /* PNG_READ_SUPPORTED */
@@ -513,6 +530,10 @@
void /* PRIVATE */
png_chunk_report(png_const_structrp png_ptr, png_const_charp message, int error)
{
+# ifndef PNG_WARNINGS_SUPPORTED
+ PNG_UNUSED(message)
+# endif
+
/* This is always supported, but for just read or just write it
* unconditionally does the right thing.
*/
@@ -740,7 +761,12 @@
png_ptr->longjmp_fn(*png_ptr->jmp_buf_ptr, val);
#endif
- /* Here if not setjmp support or if png_ptr is null. */
+ /* If control reaches this point, png_longjmp() must not return. The only
+ * choice is to terminate the whole process (or maybe the thread); to do
+ * this the ANSI-C abort() function is used unless a different method is
+ * implemented by overriding the default configuration setting for
+ * PNG_ABORT().
+ */
PNG_ABORT();
}
@@ -850,8 +876,8 @@
* possible to implement without setjmp support just so long as there is some
* way to handle the error return here:
*/
-PNG_FUNCTION(void /* PRIVATE */,
-png_safe_error,(png_structp png_nonconst_ptr, png_const_charp error_message),
+PNG_FUNCTION(void /* PRIVATE */, (PNGCBAPI
+png_safe_error),(png_structp png_nonconst_ptr, png_const_charp error_message),
PNG_NORETURN)
{
const png_const_structrp png_ptr = png_nonconst_ptr;
@@ -886,7 +912,7 @@
}
#ifdef PNG_WARNINGS_SUPPORTED
-void /* PRIVATE */
+void /* PRIVATE */ PNGCBAPI
png_safe_warning(png_structp png_nonconst_ptr, png_const_charp warning_message)
{
const png_const_structrp png_ptr = png_nonconst_ptr;
diff --git a/pnglibconf.h b/pnglibconf.h
index 21772fe..a15bf9f 100644
--- a/pnglibconf.h
+++ b/pnglibconf.h
@@ -1,8 +1,8 @@
-/* libpng 1.6.3 STANDARD API DEFINITION */
+/* libpng 1.6.10 STANDARD API DEFINITION */
/* pnglibconf.h - library build configuration */
-/* Libpng version 1.6.3 - July 18, 2013 */
+/* Libpng version 1.6.10 - March 6, 2014 */
/* Copyright (c) 1998-2013 Glenn Randers-Pehrson */
diff --git a/pngmem.c b/pngmem.c
index b9b3efb..8ee0866 100644
--- a/pngmem.c
+++ b/pngmem.c
@@ -1,7 +1,7 @@
/* pngmem.c - stub functions for memory allocation
*
- * Last changed in libpng 1.6.0 [February 14, 2013]
+ * Last changed in libpng 1.6.8 [December 19, 2013]
* Copyright (c) 1998-2013 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -73,9 +73,10 @@
* to implement a user memory handler. This checks to be sure it isn't
* called with big numbers.
*/
-#ifdef PNG_USER_MEM_SUPPORTED
+#ifndef PNG_USER_MEM_SUPPORTED
PNG_UNUSED(png_ptr)
#endif
+
if (size > 0 && size <= PNG_SIZE_MAX
# ifdef PNG_MAX_MALLOC_64K
&& size <= 65536U
@@ -95,6 +96,8 @@
return NULL;
}
+#if defined(PNG_TEXT_SUPPORTED) || defined(PNG_sPLT_SUPPORTED) ||\
+ defined(PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED)
/* This is really here only to work round a spurious warning in GCC 4.6 and 4.7
* that arises because of the checks in png_realloc_array that are repeated in
* png_malloc_array.
@@ -156,6 +159,7 @@
return NULL; /* error */
}
+#endif /* TEXT || sPLT || STORE_UNKNOWN_CHUNKS */
/* Various functions that have different error handling are derived from this.
* png_malloc always exists, but if PNG_USER_MEM_SUPPORTED is defined a separate
diff --git a/pngpread.c b/pngpread.c
index 0169ecb..6c8404e 100644
--- a/pngpread.c
+++ b/pngpread.c
@@ -1,8 +1,8 @@
/* pngpread.c - read a png file in push mode
*
- * Last changed in libpng 1.6.0 [February 14, 2013]
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.10 [March 6, 2014]
+ * Copyright (c) 1998-2014 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@ -234,6 +234,7 @@
png_error(png_ptr, "Missing PLTE before IDAT");
png_ptr->mode |= PNG_HAVE_IDAT;
+ png_ptr->process_mode = PNG_READ_IDAT_MODE;
if (!(png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT))
if (png_ptr->push_length == 0)
@@ -285,8 +286,8 @@
if (chunk_name == png_PLTE)
png_ptr->mode |= PNG_HAVE_PLTE;
}
-
#endif
+
else if (chunk_name == png_PLTE)
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@@ -528,8 +529,8 @@
png_handle_iTXt(png_ptr, info_ptr, png_ptr->push_length);
}
-
#endif
+
else
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
diff --git a/pngpriv.h b/pngpriv.h
index e77fa0c..8ced0f7 100644
--- a/pngpriv.h
+++ b/pngpriv.h
@@ -2,11 +2,11 @@
/* pngpriv.h - private declarations for use inside libpng
*
* For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2014 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
- * Last changed in libpng 1.6.3 [July 18, 2013]
+ * Last changed in libpng 1.6.10 [March 6, 2014]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
@@ -112,9 +112,15 @@
* typically the target FPU. If the FPU has been set to NEON (-mfpu=neon
* with GCC) then the compiler will define __ARM_NEON__ and we can rely
* unconditionally on NEON instructions not crashing, otherwise we must
- * disable use of NEON instructions:
+ * disable use of NEON instructions.
+ *
+ * NOTE: at present these optimizations depend on 'ALIGNED_MEMORY', so they
+ * can only be turned on automatically if that is supported too. If
+ * PNG_ARM_NEON_OPT is set in CPPFLAGS (to >0) then arm/arm_init.c will fail
+ * to compile with an appropriate #error if ALIGNED_MEMORY has been turned
+ * off.
*/
-# ifdef __ARM_NEON__
+# if defined(__ARM_NEON__) && defined(PNG_ALIGNED_MEMORY_SUPPORTED)
# define PNG_ARM_NEON_OPT 2
# else
# define PNG_ARM_NEON_OPT 0
@@ -126,7 +132,49 @@
* callbacks to do this.
*/
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_neon
-#endif
+
+ /* By default the 'intrinsics' code in arm/filter_neon_intrinsics.c is used
+ * if possible - if __ARM_NEON__ is set and the compiler version is not known
+ * to be broken. This is controlled by PNG_ARM_NEON_IMPLEMENTATION which can
+ * be:
+ *
+ * 1 The intrinsics code (the default with __ARM_NEON__)
+ * 2 The hand coded assembler (the default without __ARM_NEON__)
+ *
+ * It is possible to set PNG_ARM_NEON_IMPLEMENTATION in CPPFLAGS, however
+ * this is *NOT* supported and may cease to work even after a minor revision
+ * to libpng. It *is* valid to do this for testing purposes, e.g. speed
+ * testing or a new compiler, but the results should be communicated to the
+ * libpng implementation list for incorporation in the next minor release.
+ */
+# ifndef PNG_ARM_NEON_IMPLEMENTATION
+# ifdef __ARM_NEON__
+# if defined(__clang__)
+ /* At present it is unknown by the libpng developers which versions
+ * of clang support the intrinsics, however some or perhaps all
+ * versions do not work with the assembler so this may be
+ * irrelevant, so just use the default (do nothing here.)
+ */
+# elif defined(__GNUC__)
+ /* GCC 4.5.4 NEON support is known to be broken. 4.6.3 is known to
+ * work, so if this *is* GCC, or G++, look for a version >4.5
+ */
+# if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 6)
+# define PNG_ARM_NEON_IMPLEMENTATION 2
+# endif /* no GNUC support */
+# endif /* __GNUC__ */
+# else /* !defined __ARM_NEON__ */
+ /* The 'intrinsics' code simply won't compile without this -mfpu=neon:
+ */
+# define PNG_ARM_NEON_IMPLEMENTATION 2
+# endif /* __ARM_NEON__ */
+# endif /* !defined PNG_ARM_NEON_IMPLEMENTATION */
+
+# ifndef PNG_ARM_NEON_IMPLEMENTATION
+ /* Use the intrinsics code by default. */
+# define PNG_ARM_NEON_IMPLEMENTATION 1
+# endif
+#endif /* PNG_ARM_NEON_OPT > 0 */
/* Is this a build of a DLL where compilation of the object modules requires
* different preprocessor settings to those required for a simple library? If
@@ -206,6 +254,11 @@
extern PNG_FUNCTION(type, name, args, PNG_EMPTY attributes)
#endif
+#ifndef PNG_INTERNAL_CALLBACK
+# define PNG_INTERNAL_CALLBACK(type, name, args, attributes)\
+ extern PNG_FUNCTION(type, (PNGCBAPI name), args, PNG_EMPTY attributes)
+#endif
+
/* If floating or fixed point APIs are disabled they may still be compiled
* internally. To handle this make sure they are declared as the appropriate
* internal extern function (otherwise the symbol prefixing stuff won't work and
@@ -325,8 +378,6 @@
#ifdef PNG_WARNINGS_SUPPORTED
# define PNG_WARNING_PARAMETERS(p) png_warning_parameters p;
#else
-# define png_warning(s1,s2) ((void)(s1))
-# define png_chunk_warning(s1,s2) ((void)(s1))
# define png_warning_parameter(p,number,string) ((void)0)
# define png_warning_parameter_unsigned(p,number,format,value) ((void)0)
# define png_warning_parameter_signed(p,number,format,value) ((void)0)
@@ -334,8 +385,6 @@
# define PNG_WARNING_PARAMETERS(p)
#endif
#ifndef PNG_ERROR_TEXT_SUPPORTED
-# define png_error(s1,s2) png_err(s1)
-# define png_chunk_error(s1,s2) png_err(s1)
# define png_fixed_error(s1,s2) png_err(s1)
#endif
@@ -1176,7 +1225,7 @@
PNG_INTERNAL_FUNCTION(void,png_read_finish_row,(png_structrp png_ptr),
PNG_EMPTY);
/* Finish a row while reading, dealing with interlacing passes, etc. */
-#endif
+#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */
/* Initialize the row buffers, etc. */
PNG_INTERNAL_FUNCTION(void,png_read_start_row,(png_structrp png_ptr),PNG_EMPTY);
@@ -1187,32 +1236,7 @@
png_inforp info_ptr),PNG_EMPTY);
#endif
-/* These are the functions that do the transformations */
-#ifdef PNG_READ_FILLER_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_read_filler,(png_row_infop row_info,
- png_bytep row, png_uint_32 filler, png_uint_32 flags),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_read_swap_alpha,(png_row_infop row_info,
- png_bytep row),PNG_EMPTY);
-#endif
-
-#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_write_swap_alpha,(png_row_infop row_info,
- png_bytep row),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_read_invert_alpha,(png_row_infop row_info,
- png_bytep row),PNG_EMPTY);
-#endif
-
-#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_write_invert_alpha,(png_row_infop row_info,
- png_bytep row),PNG_EMPTY);
-#endif
-
+/* Shared transform functions, defined in pngtran.c */
#if defined(PNG_WRITE_FILLER_SUPPORTED) || \
defined(PNG_READ_STRIP_ALPHA_SUPPORTED)
PNG_INTERNAL_FUNCTION(void,png_do_strip_channel,(png_row_infop row_info,
@@ -1232,96 +1256,16 @@
png_bytep row),PNG_EMPTY);
#endif
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
-PNG_INTERNAL_FUNCTION(int,png_do_rgb_to_gray,(png_structrp png_ptr,
- png_row_infop row_info, png_bytep row),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_gray_to_rgb,(png_row_infop row_info,
- png_bytep row),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_PACK_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_unpack,(png_row_infop row_info,
- png_bytep row),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_SHIFT_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_unshift,(png_row_infop row_info,
- png_bytep row, png_const_color_8p sig_bits),PNG_EMPTY);
-#endif
-
#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED)
PNG_INTERNAL_FUNCTION(void,png_do_invert,(png_row_infop row_info,
png_bytep row),PNG_EMPTY);
#endif
-#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_scale_16_to_8,(png_row_infop row_info,
- png_bytep row),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_chop,(png_row_infop row_info,
- png_bytep row),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_QUANTIZE_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_quantize,(png_row_infop row_info,
- png_bytep row, png_const_bytep palette_lookup,
- png_const_bytep quantize_lookup),PNG_EMPTY);
-
-# ifdef PNG_CORRECT_PALETTE_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_correct_palette,(png_structrp png_ptr,
- png_colorp palette, int num_palette),PNG_EMPTY);
-# endif
-#endif
-
#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED)
PNG_INTERNAL_FUNCTION(void,png_do_bgr,(png_row_infop row_info,
png_bytep row),PNG_EMPTY);
#endif
-#ifdef PNG_WRITE_PACK_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_pack,(png_row_infop row_info,
- png_bytep row, png_uint_32 bit_depth),PNG_EMPTY);
-#endif
-
-#ifdef PNG_WRITE_SHIFT_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_shift,(png_row_infop row_info,
- png_bytep row, png_const_color_8p bit_depth),PNG_EMPTY);
-#endif
-
-#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\
- defined(PNG_READ_ALPHA_MODE_SUPPORTED)
-PNG_INTERNAL_FUNCTION(void,png_do_compose,(png_row_infop row_info,
- png_bytep row, png_structrp png_ptr),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_GAMMA_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_gamma,(png_row_infop row_info,
- png_bytep row, png_structrp png_ptr),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_encode_alpha,(png_row_infop row_info,
- png_bytep row, png_structrp png_ptr),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_EXPAND_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_expand_palette,(png_row_infop row_info,
- png_bytep row, png_const_colorp palette, png_const_bytep trans,
- int num_trans),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_do_expand,(png_row_infop row_info,
- png_bytep row, png_const_color_16p trans_color),PNG_EMPTY);
-#endif
-
-#ifdef PNG_READ_EXPAND_16_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_expand_16,(png_row_infop row_info,
- png_bytep row),PNG_EMPTY);
-#endif
-
/* The following decodes the appropriate chunks, and does error correction,
* then calls the appropriate callback for the chunk if it is valid.
*/
@@ -1422,7 +1366,6 @@
PNG_INTERNAL_FUNCTION(void,png_check_chunk_name,(png_structrp png_ptr,
png_uint_32 chunk_name),PNG_EMPTY);
-#ifdef PNG_READ_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_handle_unknown,(png_structrp png_ptr,
png_inforp info_ptr, png_uint_32 length, int keep),PNG_EMPTY);
/* This is the function that gets called for unknown chunks. The 'keep'
@@ -1431,16 +1374,14 @@
* just skips the chunk or errors out if it is critical.
*/
-#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
-#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
+#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) ||\
+ defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED)
PNG_INTERNAL_FUNCTION(int,png_chunk_unknown_handling,
(png_const_structrp png_ptr, png_uint_32 chunk_name),PNG_EMPTY);
/* Exactly as the API png_handle_as_unknown() except that the argument is a
* 32-bit chunk name, not a string.
*/
-#endif
-#endif /* PNG_READ_UNKNOWN_CHUNKS_SUPPORTED */
-#endif /* PNG_READ_SUPPORTED */
+#endif /* READ_UNKNOWN_CHUNKS || HANDLE_AS_UNKNOWN */
/* Handle the transformations for reading and writing */
#ifdef PNG_READ_TRANSFORMS_SUPPORTED
@@ -1511,13 +1452,6 @@
#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */
-#ifdef PNG_MNG_FEATURES_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_do_read_intrapixel,(png_row_infop row_info,
- png_bytep row),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_do_write_intrapixel,(png_row_infop row_info,
- png_bytep row),PNG_EMPTY);
-#endif
-
/* Added at libpng version 1.6.0 */
#ifdef PNG_GAMMA_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_colorspace_set_gamma,(png_const_structrp png_ptr,
@@ -1859,7 +1793,7 @@
png_size_t size),PNG_EMPTY);
#endif /* pCAL || sCAL */
-#if defined(PNG_READ_GAMMA_SUPPORTED) ||\
+#if defined(PNG_GAMMA_SUPPORTED) ||\
defined(PNG_INCH_CONVERSIONS_SUPPORTED) || defined(PNG_READ_pHYs_SUPPORTED)
/* Added at libpng version 1.5.0 */
/* This is a utility to provide a*times/div (rounded) and indicate
@@ -1950,11 +1884,11 @@
* errors that might occur. Returns true on success, false on failure (either
* of the function or as a result of a png_error.)
*/
-PNG_INTERNAL_FUNCTION(void,png_safe_error,(png_structp png_ptr,
+PNG_INTERNAL_CALLBACK(void,png_safe_error,(png_structp png_ptr,
png_const_charp error_message),PNG_NORETURN);
#ifdef PNG_WARNINGS_SUPPORTED
-PNG_INTERNAL_FUNCTION(void,png_safe_warning,(png_structp png_ptr,
+PNG_INTERNAL_CALLBACK(void,png_safe_warning,(png_structp png_ptr,
png_const_charp warning_message),PNG_EMPTY);
#else
# define png_safe_warning 0/*dummy argument*/
diff --git a/pngread.c b/pngread.c
index aabf1f5..2a6ffbe 100644
--- a/pngread.c
+++ b/pngread.c
@@ -1,8 +1,8 @@
/* pngread.c - read a PNG file
*
- * Last changed in libpng 1.6.1 [March 28, 2013]
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.10 [March 6, 2014]
+ * Copyright (c) 1998-2014 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@ -315,6 +315,72 @@
#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */
#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
+#ifdef PNG_MNG_FEATURES_SUPPORTED
+/* Undoes intrapixel differencing,
+ * NOTE: this is apparently only supported in the 'sequential' reader.
+ */
+static void
+png_do_read_intrapixel(png_row_infop row_info, png_bytep row)
+{
+ png_debug(1, "in png_do_read_intrapixel");
+
+ if (
+ (row_info->color_type & PNG_COLOR_MASK_COLOR))
+ {
+ int bytes_per_pixel;
+ png_uint_32 row_width = row_info->width;
+
+ if (row_info->bit_depth == 8)
+ {
+ png_bytep rp;
+ png_uint_32 i;
+
+ if (row_info->color_type == PNG_COLOR_TYPE_RGB)
+ bytes_per_pixel = 3;
+
+ else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
+ bytes_per_pixel = 4;
+
+ else
+ return;
+
+ for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
+ {
+ *(rp) = (png_byte)((256 + *rp + *(rp + 1)) & 0xff);
+ *(rp+2) = (png_byte)((256 + *(rp + 2) + *(rp + 1)) & 0xff);
+ }
+ }
+ else if (row_info->bit_depth == 16)
+ {
+ png_bytep rp;
+ png_uint_32 i;
+
+ if (row_info->color_type == PNG_COLOR_TYPE_RGB)
+ bytes_per_pixel = 6;
+
+ else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
+ bytes_per_pixel = 8;
+
+ else
+ return;
+
+ for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
+ {
+ png_uint_32 s0 = (*(rp ) << 8) | *(rp + 1);
+ png_uint_32 s1 = (*(rp + 2) << 8) | *(rp + 3);
+ png_uint_32 s2 = (*(rp + 4) << 8) | *(rp + 5);
+ png_uint_32 red = (s0 + s1 + 65536) & 0xffff;
+ png_uint_32 blue = (s2 + s1 + 65536) & 0xffff;
+ *(rp ) = (png_byte)((red >> 8) & 0xff);
+ *(rp + 1) = (png_byte)(red & 0xff);
+ *(rp + 4) = (png_byte)((blue >> 8) & 0xff);
+ *(rp + 5) = (png_byte)(blue & 0xff);
+ }
+ }
+ }
+}
+#endif /* PNG_MNG_FEATURES_SUPPORTED */
+
void PNGAPI
png_read_row(png_structrp png_ptr, png_bytep row, png_bytep dsp_row)
{
@@ -499,7 +565,6 @@
}
#endif
-
#ifdef PNG_READ_TRANSFORMS_SUPPORTED
if (png_ptr->transformations)
png_do_read_transformations(png_ptr, &row_info);
@@ -862,11 +927,14 @@
png_uint_32 length = png_read_chunk_header(png_ptr);
png_uint_32 chunk_name = png_ptr->chunk_name;
- if (chunk_name == png_IHDR)
+ if (chunk_name == png_IEND)
+ png_handle_IEND(png_ptr, info_ptr, length);
+
+ else if (chunk_name == png_IHDR)
png_handle_IHDR(png_ptr, info_ptr, length);
- else if (chunk_name == png_IEND)
- png_handle_IEND(png_ptr, info_ptr, length);
+ else if (info_ptr == NULL)
+ png_crc_finish(png_ptr, length);
#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
else if ((keep = png_chunk_unknown_handling(png_ptr, chunk_name)) != 0)
@@ -1101,8 +1169,6 @@
int transforms,
voidp params)
{
- int row;
-
if (png_ptr == NULL || info_ptr == NULL)
return;
@@ -1114,126 +1180,149 @@
png_error(png_ptr, "Image is too high to process with png_read_png()");
/* -------------- image transformations start here ------------------- */
+ /* libpng 1.6.10: add code to cause a png_app_error if a selected TRANSFORM
+ * is not implemented. This will only happen in de-configured (non-default)
+ * libpng builds. The results can be unexpected - png_read_png may return
+ * short or mal-formed rows because the transform is skipped.
+ */
-#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
/* Tell libpng to strip 16-bit/color files down to 8 bits per color.
*/
if (transforms & PNG_TRANSFORM_SCALE_16)
- {
/* Added at libpng-1.5.4. "strip_16" produces the same result that it
* did in earlier versions, while "scale_16" is now more accurate.
*/
+#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
png_set_scale_16(png_ptr);
- }
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_SCALE_16 not supported");
#endif
-#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED
/* If both SCALE and STRIP are required pngrtran will effectively cancel the
* latter by doing SCALE first. This is ok and allows apps not to check for
* which is supported to get the right answer.
*/
if (transforms & PNG_TRANSFORM_STRIP_16)
+#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED
png_set_strip_16(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_STRIP_16 not supported");
#endif
-#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
/* Strip alpha bytes from the input data without combining with
* the background (not recommended).
*/
if (transforms & PNG_TRANSFORM_STRIP_ALPHA)
+#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
png_set_strip_alpha(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_STRIP_ALPHA not supported");
#endif
-#if defined(PNG_READ_PACK_SUPPORTED) && !defined(PNG_READ_EXPAND_SUPPORTED)
/* Extract multiple pixels with bit depths of 1, 2, or 4 from a single
* byte into separate bytes (useful for paletted and grayscale images).
*/
if (transforms & PNG_TRANSFORM_PACKING)
+#ifdef PNG_READ_PACK_SUPPORTED
png_set_packing(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_PACKING not supported");
#endif
-#ifdef PNG_READ_PACKSWAP_SUPPORTED
/* Change the order of packed pixels to least significant bit first
* (not useful if you are using png_set_packing).
*/
if (transforms & PNG_TRANSFORM_PACKSWAP)
+#ifdef PNG_READ_PACKSWAP_SUPPORTED
png_set_packswap(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_PACKSWAP not supported");
#endif
-#ifdef PNG_READ_EXPAND_SUPPORTED
/* Expand paletted colors into true RGB triplets
* Expand grayscale images to full 8 bits from 1, 2, or 4 bits/pixel
* Expand paletted or RGB images with transparency to full alpha
* channels so the data will be available as RGBA quartets.
*/
if (transforms & PNG_TRANSFORM_EXPAND)
- if ((png_ptr->bit_depth < 8) ||
- (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) ||
- (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)))
- png_set_expand(png_ptr);
+#ifdef PNG_READ_EXPAND_SUPPORTED
+ png_set_expand(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_EXPAND not supported");
#endif
/* We don't handle background color or gamma transformation or quantizing.
*/
-#ifdef PNG_READ_INVERT_SUPPORTED
/* Invert monochrome files to have 0 as white and 1 as black
*/
if (transforms & PNG_TRANSFORM_INVERT_MONO)
+#ifdef PNG_READ_INVERT_SUPPORTED
png_set_invert_mono(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_INVERT_MONO not supported");
#endif
-#ifdef PNG_READ_SHIFT_SUPPORTED
/* If you want to shift the pixel values from the range [0,255] or
* [0,65535] to the original [0,7] or [0,31], or whatever range the
* colors were originally in:
*/
- if ((transforms & PNG_TRANSFORM_SHIFT)
- && png_get_valid(png_ptr, info_ptr, PNG_INFO_sBIT))
- {
- png_color_8p sig_bit;
-
- png_get_sBIT(png_ptr, info_ptr, &sig_bit);
- png_set_shift(png_ptr, sig_bit);
- }
+ if (transforms & PNG_TRANSFORM_SHIFT)
+#ifdef PNG_READ_SHIFT_SUPPORTED
+ if (info_ptr->valid & PNG_INFO_sBIT)
+ png_set_shift(png_ptr, &info_ptr->sig_bit);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_SHIFT not supported");
#endif
-#ifdef PNG_READ_BGR_SUPPORTED
/* Flip the RGB pixels to BGR (or RGBA to BGRA) */
if (transforms & PNG_TRANSFORM_BGR)
+#ifdef PNG_READ_BGR_SUPPORTED
png_set_bgr(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_BGR not supported");
#endif
-#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED
/* Swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR) */
if (transforms & PNG_TRANSFORM_SWAP_ALPHA)
+#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED
png_set_swap_alpha(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_SWAP_ALPHA not supported");
#endif
-#ifdef PNG_READ_SWAP_SUPPORTED
/* Swap bytes of 16-bit files to least significant byte first */
if (transforms & PNG_TRANSFORM_SWAP_ENDIAN)
+#ifdef PNG_READ_SWAP_SUPPORTED
png_set_swap(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_SWAP_ENDIAN not supported");
#endif
/* Added at libpng-1.2.41 */
-#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED
/* Invert the alpha channel from opacity to transparency */
if (transforms & PNG_TRANSFORM_INVERT_ALPHA)
+#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED
png_set_invert_alpha(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_INVERT_ALPHA not supported");
#endif
/* Added at libpng-1.2.41 */
-#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
/* Expand grayscale image to RGB */
if (transforms & PNG_TRANSFORM_GRAY_TO_RGB)
+#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
png_set_gray_to_rgb(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_GRAY_TO_RGB not supported");
#endif
/* Added at libpng-1.5.4 */
-#ifdef PNG_READ_EXPAND_16_SUPPORTED
if (transforms & PNG_TRANSFORM_EXPAND_16)
+#ifdef PNG_READ_EXPAND_16_SUPPORTED
png_set_expand_16(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_EXPAND_16 not supported");
#endif
/* We don't handle adding filler bytes */
@@ -1256,16 +1345,17 @@
{
png_uint_32 iptr;
- info_ptr->row_pointers = (png_bytepp)png_malloc(png_ptr,
- info_ptr->height * (sizeof (png_bytep)));
+ info_ptr->row_pointers = png_voidcast(png_bytepp, png_malloc(png_ptr,
+ info_ptr->height * (sizeof (png_bytep))));
+
for (iptr=0; iptr<info_ptr->height; iptr++)
info_ptr->row_pointers[iptr] = NULL;
info_ptr->free_me |= PNG_FREE_ROWS;
- for (row = 0; row < (int)info_ptr->height; row++)
- info_ptr->row_pointers[row] = (png_bytep)png_malloc(png_ptr,
- png_get_rowbytes(png_ptr, info_ptr));
+ for (iptr = 0; iptr < info_ptr->height; iptr++)
+ info_ptr->row_pointers[iptr] = png_voidcast(png_bytep,
+ png_malloc(png_ptr, info_ptr->rowbytes));
}
png_read_image(png_ptr, info_ptr->row_pointers);
@@ -1274,9 +1364,7 @@
/* Read rest of file, and get additional chunks in info_ptr - REQUIRED */
png_read_end(png_ptr, info_ptr);
- PNG_UNUSED(transforms) /* Quiet compiler warnings */
PNG_UNUSED(params)
-
}
#endif /* PNG_INFO_IMAGE_SUPPORTED */
#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */
@@ -1290,12 +1378,11 @@
/* Arguments to png_image_finish_read: */
/* Encoding of PNG data (used by the color-map code) */
-/* TODO: change these, dang, ANSI-C reserves the 'E' namespace. */
-# define E_NOTSET 0 /* File encoding not yet known */
-# define E_sRGB 1 /* 8-bit encoded to sRGB gamma */
-# define E_LINEAR 2 /* 16-bit linear: not encoded, NOT pre-multiplied! */
-# define E_FILE 3 /* 8-bit encoded to file gamma, not sRGB or linear */
-# define E_LINEAR8 4 /* 8-bit linear: only from a file value */
+# define P_NOTSET 0 /* File encoding not yet known */
+# define P_sRGB 1 /* 8-bit encoded to sRGB gamma */
+# define P_LINEAR 2 /* 16-bit linear: not encoded, NOT pre-multiplied! */
+# define P_FILE 3 /* 8-bit encoded to file gamma, not sRGB or linear */
+# define P_LINEAR8 4 /* 8-bit linear: only from a file value */
/* Color-map processing: after libpng has run on the PNG image further
* processing may be needed to conver the data to color-map indicies.
@@ -1326,7 +1413,7 @@
png_voidp first_row;
ptrdiff_t row_bytes; /* step between rows */
int file_encoding; /* E_ values above */
- png_fixed_point gamma_to_linear; /* For E_FILE, reciprocal of gamma */
+ png_fixed_point gamma_to_linear; /* For P_FILE, reciprocal of gamma */
int colormap_processing; /* PNG_CMAP_ values above */
} png_image_read_control;
@@ -1458,7 +1545,7 @@
#ifdef PNG_COLORSPACE_SUPPORTED
/* Does the colorspace match sRGB? If there is no color endpoint
* (colorant) information assume yes, otherwise require the
- * 'ENDPOINTS_MATCHE_sRGB' colorspace flag to have been set. If the
+ * 'ENDPOINTS_MATCHP_sRGB' colorspace flag to have been set. If the
* colorspace has been determined to be invalid ignore it.
*/
if ((format & PNG_FORMAT_FLAG_COLOR) != 0 && ((png_ptr->colorspace.flags
@@ -1647,17 +1734,24 @@
*
* Or image data handling:
*
- * tRNS, bKGD, gAMA, cHRM, sRGB, iCCP and sBIT.
+ * tRNS, bKGD, gAMA, cHRM, sRGB, [iCCP] and sBIT.
*
* This provides a small performance improvement and eliminates any
* potential vulnerability to security problems in the unused chunks.
+ *
+ * At present the iCCP chunk data isn't used, so iCCP chunk can be ignored
+ * too. This allows the simplified API to be compiled without iCCP support,
+ * however if the support is there the chunk is still checked to detect
+ * errors (which are unfortunately quite common.)
*/
{
static PNG_CONST png_byte chunks_to_process[] = {
98, 75, 71, 68, '\0', /* bKGD */
99, 72, 82, 77, '\0', /* cHRM */
103, 65, 77, 65, '\0', /* gAMA */
+# ifdef PNG_READ_iCCP_SUPPORTED
105, 67, 67, 80, '\0', /* iCCP */
+# endif
115, 66, 73, 84, '\0', /* sBIT */
115, 82, 71, 66, '\0', /* sRGB */
};
@@ -1694,25 +1788,25 @@
{
if (png_gamma_not_sRGB(g))
{
- display->file_encoding = E_FILE;
+ display->file_encoding = P_FILE;
display->gamma_to_linear = png_reciprocal(g);
}
else
- display->file_encoding = E_sRGB;
+ display->file_encoding = P_sRGB;
}
else
- display->file_encoding = E_LINEAR8;
+ display->file_encoding = P_LINEAR8;
}
static unsigned int
decode_gamma(png_image_read_control *display, png_uint_32 value, int encoding)
{
- if (encoding == E_FILE) /* double check */
+ if (encoding == P_FILE) /* double check */
encoding = display->file_encoding;
- if (encoding == E_NOTSET) /* must be the file encoding */
+ if (encoding == P_NOTSET) /* must be the file encoding */
{
set_file_encoding(display);
encoding = display->file_encoding;
@@ -1720,18 +1814,18 @@
switch (encoding)
{
- case E_FILE:
+ case P_FILE:
value = png_gamma_16bit_correct(value*257, display->gamma_to_linear);
break;
- case E_sRGB:
+ case P_sRGB:
value = png_sRGB_table[value];
break;
- case E_LINEAR:
+ case P_LINEAR:
break;
- case E_LINEAR8:
+ case P_LINEAR8:
value *= 257;
break;
@@ -1750,9 +1844,9 @@
png_uint_32 background, int encoding)
{
/* The file value is composed on the background, the background has the given
- * encoding and so does the result, the file is encoded with E_FILE and the
+ * encoding and so does the result, the file is encoded with P_FILE and the
* file and alpha are 8-bit values. The (output) encoding will always be
- * E_LINEAR or E_sRGB.
+ * P_LINEAR or P_sRGB.
*/
png_uint_32 f = decode_gamma(display, foreground, foreground_encoding);
png_uint_32 b = decode_gamma(display, background, encoding);
@@ -1762,7 +1856,7 @@
*/
f = f * alpha + b * (255-alpha);
- if (encoding == E_LINEAR)
+ if (encoding == P_LINEAR)
{
/* Scale to 65535; divide by 255, approximately (in fact this is extremely
* accurate, it divides by 255.00000005937181414556, with no overflow.)
@@ -1772,13 +1866,13 @@
f = (f+32768) >> 16;
}
- else /* E_sRGB */
+ else /* P_sRGB */
f = PNG_sRGB_FROM_LINEAR(f);
return f;
}
-/* NOTE: E_LINEAR values to this routine must be 16-bit, but E_FILE values must
+/* NOTE: P_LINEAR values to this routine must be 16-bit, but P_FILE values must
* be 8-bit.
*/
static void
@@ -1788,7 +1882,7 @@
{
png_imagep image = display->image;
const int output_encoding = (image->format & PNG_FORMAT_FLAG_LINEAR) ?
- E_LINEAR : E_sRGB;
+ P_LINEAR : P_sRGB;
const int convert_to_Y = (image->format & PNG_FORMAT_FLAG_COLOR) == 0 &&
(red != green || green != blue);
@@ -1798,18 +1892,18 @@
/* Update the cache with whether the file gamma is significantly different
* from sRGB.
*/
- if (encoding == E_FILE)
+ if (encoding == P_FILE)
{
- if (display->file_encoding == E_NOTSET)
+ if (display->file_encoding == P_NOTSET)
set_file_encoding(display);
- /* Note that the cached value may be E_FILE too, but if it is then the
+ /* Note that the cached value may be P_FILE too, but if it is then the
* gamma_to_linear member has been set.
*/
encoding = display->file_encoding;
}
- if (encoding == E_FILE)
+ if (encoding == P_FILE)
{
png_fixed_point g = display->gamma_to_linear;
@@ -1817,10 +1911,10 @@
green = png_gamma_16bit_correct(green*257, g);
blue = png_gamma_16bit_correct(blue*257, g);
- if (convert_to_Y || output_encoding == E_LINEAR)
+ if (convert_to_Y || output_encoding == P_LINEAR)
{
alpha *= 257;
- encoding = E_LINEAR;
+ encoding = P_LINEAR;
}
else
@@ -1828,11 +1922,11 @@
red = PNG_sRGB_FROM_LINEAR(red * 255);
green = PNG_sRGB_FROM_LINEAR(green * 255);
blue = PNG_sRGB_FROM_LINEAR(blue * 255);
- encoding = E_sRGB;
+ encoding = P_sRGB;
}
}
- else if (encoding == E_LINEAR8)
+ else if (encoding == P_LINEAR8)
{
/* This encoding occurs quite frequently in test cases because PngSuite
* includes a gAMA 1.0 chunk with most images.
@@ -1841,10 +1935,10 @@
green *= 257;
blue *= 257;
alpha *= 257;
- encoding = E_LINEAR;
+ encoding = P_LINEAR;
}
- else if (encoding == E_sRGB && (convert_to_Y || output_encoding == E_LINEAR))
+ else if (encoding == P_sRGB && (convert_to_Y || output_encoding == P_LINEAR))
{
/* The values are 8-bit sRGB values, but must be converted to 16-bit
* linear.
@@ -1853,11 +1947,11 @@
green = png_sRGB_table[green];
blue = png_sRGB_table[blue];
alpha *= 257;
- encoding = E_LINEAR;
+ encoding = P_LINEAR;
}
/* This is set if the color isn't gray but the output is. */
- if (encoding == E_LINEAR)
+ if (encoding == P_LINEAR)
{
if (convert_to_Y)
{
@@ -1865,7 +1959,7 @@
png_uint_32 y = (png_uint_32)6968 * red + (png_uint_32)23434 * green +
(png_uint_32)2366 * blue;
- if (output_encoding == E_LINEAR)
+ if (output_encoding == P_LINEAR)
y = (y + 16384) >> 15;
else
@@ -1874,19 +1968,19 @@
y = (y + 128) >> 8;
y *= 255;
y = PNG_sRGB_FROM_LINEAR((y + 64) >> 7);
- encoding = E_sRGB;
+ encoding = P_sRGB;
}
blue = red = green = y;
}
- else if (output_encoding == E_sRGB)
+ else if (output_encoding == P_sRGB)
{
red = PNG_sRGB_FROM_LINEAR(red * 255);
green = PNG_sRGB_FROM_LINEAR(green * 255);
blue = PNG_sRGB_FROM_LINEAR(blue * 255);
alpha = PNG_DIV257(alpha);
- encoding = E_sRGB;
+ encoding = P_sRGB;
}
}
@@ -1895,7 +1989,7 @@
/* Store the value. */
{
-# ifdef PNG_FORMAT_BGR_SUPPORTED
+# ifdef PNG_FORMAT_AFIRST_SUPPORTED
const int afirst = (image->format & PNG_FORMAT_FLAG_AFIRST) != 0 &&
(image->format & PNG_FORMAT_FLAG_ALPHA) != 0;
# else
@@ -1907,7 +2001,7 @@
# define bgr 0
# endif
- if (output_encoding == E_LINEAR)
+ if (output_encoding == P_LINEAR)
{
png_uint_16p entry = png_voidcast(png_uint_16p, display->colormap);
@@ -1962,7 +2056,7 @@
}
}
- else /* output encoding is E_sRGB */
+ else /* output encoding is P_sRGB */
{
png_bytep entry = png_voidcast(png_bytep, display->colormap);
@@ -2004,7 +2098,7 @@
unsigned int i;
for (i=0; i<256; ++i)
- png_create_colormap_entry(display, i, i, i, i, 255, E_FILE);
+ png_create_colormap_entry(display, i, i, i, i, 255, P_FILE);
return i;
}
@@ -2015,7 +2109,7 @@
unsigned int i;
for (i=0; i<256; ++i)
- png_create_colormap_entry(display, i, i, i, i, 255, E_sRGB);
+ png_create_colormap_entry(display, i, i, i, i, 255, P_sRGB);
return i;
}
@@ -2054,13 +2148,13 @@
while (i < 231)
{
unsigned int gray = (i * 256 + 115) / 231;
- png_create_colormap_entry(display, i++, gray, gray, gray, 255, E_sRGB);
+ png_create_colormap_entry(display, i++, gray, gray, gray, 255, P_sRGB);
}
/* 255 is used here for the component values for consistency with the code
* that undoes premultiplication in pngwrite.c.
*/
- png_create_colormap_entry(display, i++, 255, 255, 255, 0, E_sRGB);
+ png_create_colormap_entry(display, i++, 255, 255, 255, 0, P_sRGB);
for (a=1; a<5; ++a)
{
@@ -2068,7 +2162,7 @@
for (g=0; g<6; ++g)
png_create_colormap_entry(display, i++, g*51, g*51, g*51, a*51,
- E_sRGB);
+ P_sRGB);
}
return i;
@@ -2092,7 +2186,7 @@
for (b=0; b<6; ++b)
png_create_colormap_entry(display, i++, r*51, g*51, b*51, 255,
- E_sRGB);
+ P_sRGB);
}
}
@@ -2115,11 +2209,11 @@
const png_structrp png_ptr = image->opaque->png_ptr;
const png_uint_32 output_format = image->format;
const int output_encoding = (output_format & PNG_FORMAT_FLAG_LINEAR) ?
- E_LINEAR : E_sRGB;
+ P_LINEAR : P_sRGB;
unsigned int cmap_entries;
unsigned int output_processing; /* Output processing option */
- unsigned int data_encoding = E_NOTSET; /* Encoding libpng must produce */
+ unsigned int data_encoding = P_NOTSET; /* Encoding libpng must produce */
/* Background information; the background color and the index of this color
* in the color-map if it exists (else 256).
@@ -2139,7 +2233,7 @@
png_ptr->num_trans > 0) /* alpha in input */ &&
((output_format & PNG_FORMAT_FLAG_ALPHA) == 0) /* no alpha in output */)
{
- if (output_encoding == E_LINEAR) /* compose on black */
+ if (output_encoding == P_LINEAR) /* compose on black */
back_b = back_g = back_r = 0;
else if (display->background == NULL /* no way to remove it */)
@@ -2163,7 +2257,7 @@
}
}
- else if (output_encoding == E_LINEAR)
+ else if (output_encoding == P_LINEAR)
back_b = back_r = back_g = 65535;
else
@@ -2221,7 +2315,7 @@
trans = png_ptr->trans_color.gray;
if ((output_format & PNG_FORMAT_FLAG_ALPHA) == 0)
- back_alpha = output_encoding == E_LINEAR ? 65535 : 255;
+ back_alpha = output_encoding == P_LINEAR ? 65535 : 255;
}
/* png_create_colormap_entry just takes an RGBA and writes the
@@ -2239,7 +2333,7 @@
*/
if (i != trans)
png_create_colormap_entry(display, i, val, val, val, 255,
- E_FILE/*8-bit with file gamma*/);
+ P_FILE/*8-bit with file gamma*/);
/* Else this entry is transparent. The colors don't matter if
* there is an alpha channel (back_alpha == 0), but it does no
@@ -2255,7 +2349,7 @@
}
/* We need libpng to preserve the original encoding. */
- data_encoding = E_FILE;
+ data_encoding = P_FILE;
/* The rows from libpng, while technically gray values, are now also
* color-map indicies; however, they may need to be expanded to 1
@@ -2284,7 +2378,7 @@
* ensuring that the corresponding gray level matches the background
* color exactly.
*/
- data_encoding = E_sRGB;
+ data_encoding = P_sRGB;
if (PNG_GRAY_COLORMAP_ENTRIES > image->colormap_entries)
png_error(png_ptr, "gray[16] color-map: too few entries");
@@ -2308,7 +2402,7 @@
png_color_16 c;
png_uint_32 gray = back_g;
- if (output_encoding == E_LINEAR)
+ if (output_encoding == P_LINEAR)
{
gray = PNG_sRGB_FROM_LINEAR(gray * 255);
@@ -2316,7 +2410,7 @@
* matches.
*/
png_create_colormap_entry(display, gray, back_g, back_g,
- back_g, 65535, E_LINEAR);
+ back_g, 65535, P_LINEAR);
}
/* The background passed to libpng, however, must be the
@@ -2337,7 +2431,7 @@
break;
}
- back_alpha = output_encoding == E_LINEAR ? 65535 : 255;
+ back_alpha = output_encoding == P_LINEAR ? 65535 : 255;
}
/* output_processing means that the libpng-processed row will be
@@ -2374,7 +2468,7 @@
* worry about tRNS matching - tRNS is ignored if there is an alpha
* channel.
*/
- data_encoding = E_sRGB;
+ data_encoding = P_sRGB;
if (output_format & PNG_FORMAT_FLAG_ALPHA)
{
@@ -2417,13 +2511,13 @@
cmap_entries = make_gray_colormap(display);
- if (output_encoding == E_LINEAR)
+ if (output_encoding == P_LINEAR)
{
gray = PNG_sRGB_FROM_LINEAR(gray * 255);
/* And make sure the corresponding palette entry matches. */
png_create_colormap_entry(display, gray, back_g, back_g,
- back_g, 65535, E_LINEAR);
+ back_g, 65535, P_LINEAR);
}
/* The background passed to libpng, however, must be the sRGB
@@ -2454,7 +2548,7 @@
{
png_uint_32 gray = (i * 256 + 115) / 231;
png_create_colormap_entry(display, i++, gray, gray, gray,
- 255, E_sRGB);
+ 255, P_sRGB);
}
/* NOTE: this preserves the full precision of the application
@@ -2462,7 +2556,7 @@
*/
background_index = i;
png_create_colormap_entry(display, i++, back_r, back_g, back_b,
- output_encoding == E_LINEAR ? 65535U : 255U, output_encoding);
+ output_encoding == P_LINEAR ? 65535U : 255U, output_encoding);
/* For non-opaque input composite on the sRGB background - this
* requires inverting the encoding for each component. The input
@@ -2472,7 +2566,7 @@
* represents. Consequently 'G' is always sRGB encoded, while
* 'A' is linear. We need the linear background colors.
*/
- if (output_encoding == E_sRGB) /* else already linear */
+ if (output_encoding == P_sRGB) /* else already linear */
{
/* This may produce a value not exactly matching the
* background, but that's ok because these numbers are only
@@ -2502,7 +2596,7 @@
png_create_colormap_entry(display, i++,
PNG_sRGB_FROM_LINEAR(gray + back_rx),
PNG_sRGB_FROM_LINEAR(gray + back_gx),
- PNG_sRGB_FROM_LINEAR(gray + back_bx), 255, E_sRGB);
+ PNG_sRGB_FROM_LINEAR(gray + back_bx), 255, P_sRGB);
}
}
@@ -2529,7 +2623,7 @@
*/
png_set_rgb_to_gray_fixed(png_ptr, PNG_ERROR_ACTION_NONE, -1,
-1);
- data_encoding = E_sRGB;
+ data_encoding = P_sRGB;
/* The output will now be one or two 8-bit gray or gray+alpha
* channels. The more complex case arises when the input has alpha.
@@ -2574,7 +2668,7 @@
png_gamma_not_sRGB(png_ptr->colorspace.gamma))
{
cmap_entries = make_gray_file_colormap(display);
- data_encoding = E_FILE;
+ data_encoding = P_FILE;
}
else
@@ -2593,18 +2687,18 @@
* it. Achieve this simply by ensuring that the entry
* selected for the background really is the background color.
*/
- if (data_encoding == E_FILE) /* from the fixup above */
+ if (data_encoding == P_FILE) /* from the fixup above */
{
/* The app supplied a gray which is in output_encoding, we
- * need to convert it to a value of the input (E_FILE)
+ * need to convert it to a value of the input (P_FILE)
* encoding then set this palette entry to the required
* output encoding.
*/
- if (output_encoding == E_sRGB)
- gray = png_sRGB_table[gray]; /* now E_LINEAR */
+ if (output_encoding == P_sRGB)
+ gray = png_sRGB_table[gray]; /* now P_LINEAR */
gray = PNG_DIV257(png_gamma_16bit_correct(gray,
- png_ptr->colorspace.gamma)); /* now E_FILE */
+ png_ptr->colorspace.gamma)); /* now P_FILE */
/* And make sure the corresponding palette entry contains
* exactly the required sRGB value.
@@ -2613,14 +2707,14 @@
back_g, 0/*unused*/, output_encoding);
}
- else if (output_encoding == E_LINEAR)
+ else if (output_encoding == P_LINEAR)
{
gray = PNG_sRGB_FROM_LINEAR(gray * 255);
/* And make sure the corresponding palette entry matches.
*/
png_create_colormap_entry(display, gray, back_g, back_g,
- back_g, 0/*unused*/, E_LINEAR);
+ back_g, 0/*unused*/, P_LINEAR);
}
/* The background passed to libpng, however, must be the
@@ -2650,7 +2744,7 @@
* to do it once and using PNG_DIV51 on the 6x6x6 reduced RGB cube.
* Consequently we always want libpng to produce sRGB data.
*/
- data_encoding = E_sRGB;
+ data_encoding = P_sRGB;
/* Is there any transparency or alpha? */
if (png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA ||
@@ -2670,7 +2764,7 @@
/* Add a transparent entry. */
png_create_colormap_entry(display, cmap_entries, 255, 255,
- 255, 0, E_sRGB);
+ 255, 0, P_sRGB);
/* This is stored as the background index for the processing
* algorithm.
@@ -2691,7 +2785,7 @@
*/
for (b=0; b<256; b = (b << 1) | 0x7f)
png_create_colormap_entry(display, cmap_entries++,
- r, g, b, 128, E_sRGB);
+ r, g, b, 128, P_sRGB);
}
}
@@ -2720,7 +2814,7 @@
png_create_colormap_entry(display, cmap_entries, back_r,
back_g, back_b, 0/*unused*/, output_encoding);
- if (output_encoding == E_LINEAR)
+ if (output_encoding == P_LINEAR)
{
r = PNG_sRGB_FROM_LINEAR(back_r * 255);
g = PNG_sRGB_FROM_LINEAR(back_g * 255);
@@ -2760,11 +2854,11 @@
*/
for (b=0; b<256; b = (b << 1) | 0x7f)
png_create_colormap_entry(display, cmap_entries++,
- png_colormap_compose(display, r, E_sRGB, 128,
+ png_colormap_compose(display, r, P_sRGB, 128,
back_r, output_encoding),
- png_colormap_compose(display, g, E_sRGB, 128,
+ png_colormap_compose(display, g, P_sRGB, 128,
back_g, output_encoding),
- png_colormap_compose(display, b, E_sRGB, 128,
+ png_colormap_compose(display, b, P_sRGB, 128,
back_b, output_encoding),
0/*unused*/, output_encoding);
}
@@ -2823,7 +2917,7 @@
num_trans = 0;
output_processing = PNG_CMAP_NONE;
- data_encoding = E_FILE; /* Don't change from color-map indicies */
+ data_encoding = P_FILE; /* Don't change from color-map indicies */
cmap_entries = png_ptr->num_palette;
if (cmap_entries > 256)
cmap_entries = 256;
@@ -2845,13 +2939,13 @@
* on the sRGB color in 'back'.
*/
png_create_colormap_entry(display, i,
- png_colormap_compose(display, colormap[i].red, E_FILE,
+ png_colormap_compose(display, colormap[i].red, P_FILE,
trans[i], back_r, output_encoding),
- png_colormap_compose(display, colormap[i].green, E_FILE,
+ png_colormap_compose(display, colormap[i].green, P_FILE,
trans[i], back_g, output_encoding),
- png_colormap_compose(display, colormap[i].blue, E_FILE,
+ png_colormap_compose(display, colormap[i].blue, P_FILE,
trans[i], back_b, output_encoding),
- output_encoding == E_LINEAR ? trans[i] * 257U :
+ output_encoding == P_LINEAR ? trans[i] * 257U :
trans[i],
output_encoding);
}
@@ -2860,7 +2954,7 @@
else
png_create_colormap_entry(display, i, colormap[i].red,
colormap[i].green, colormap[i].blue,
- i < num_trans ? trans[i] : 255U, E_FILE/*8-bit*/);
+ i < num_trans ? trans[i] : 255U, P_FILE/*8-bit*/);
}
/* The PNG data may have indicies packed in fewer than 8 bits, it
@@ -2888,12 +2982,12 @@
png_error(png_ptr, "bad data option (internal error)");
break;
- case E_sRGB:
+ case P_sRGB:
/* Change to 8-bit sRGB */
png_set_alpha_mode_fixed(png_ptr, PNG_ALPHA_PNG, PNG_GAMMA_sRGB);
/* FALL THROUGH */
- case E_FILE:
+ case P_FILE:
if (png_ptr->bit_depth > 8)
png_set_scale_16(png_ptr);
break;
@@ -2970,7 +3064,6 @@
break;
default:
- passes = 0;
png_error(png_ptr, "unknown interlace type");
}
@@ -3289,7 +3382,6 @@
break;
default:
- passes = 0;
png_error(png_ptr, "unknown interlace type");
}
@@ -3438,11 +3530,15 @@
break;
default:
- passes = 0;
png_error(png_ptr, "unknown interlace type");
}
- switch (png_get_bit_depth(png_ptr, info_ptr))
+ /* Use direct access to info_ptr here because otherwise the simplified API
+ * would require PNG_EASY_ACCESS_SUPPORTED (just for this.) Note this is
+ * checking the value after libpng expansions, not the original value in the
+ * PNG.
+ */
+ switch (info_ptr->bit_depth)
{
default:
png_error(png_ptr, "unexpected bit depth");
@@ -3450,7 +3546,7 @@
case 8:
/* 8-bit sRGB gray values with an alpha channel; the alpha channel is
- * to be removed by composing on a backgroundi: either the row if
+ * to be removed by composing on a background: either the row if
* display->background is NULL or display->background->green if not.
* Unlike the code above ALPHA_OPTIMIZED has *not* been done.
*/
@@ -3590,8 +3686,10 @@
unsigned int outchannels = 1+preserve_alpha;
int swap_alpha = 0;
- if (preserve_alpha && (image->format & PNG_FORMAT_FLAG_AFIRST))
- swap_alpha = 1;
+# ifdef PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED
+ if (preserve_alpha && (image->format & PNG_FORMAT_FLAG_AFIRST))
+ swap_alpha = 1;
+# endif
for (pass = 0; pass < passes; ++pass)
{
diff --git a/pngrio.c b/pngrio.c
index 935da9b..429dffd 100644
--- a/pngrio.c
+++ b/pngrio.c
@@ -1,8 +1,8 @@
/* pngrio.c - functions for data input
*
- * Last changed in libpng 1.6.0 [February 14, 2013]
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.9 [February 6, 2014]
+ * Copyright (c) 1998-2014 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@ -116,6 +116,7 @@
png_ptr->read_data_fn = read_data_fn;
#endif
+#ifdef PNG_WRITE_SUPPORTED
/* It is an error to write to a read device */
if (png_ptr->write_data_fn != NULL)
{
@@ -124,6 +125,7 @@
"Can't set both read_data_fn and write_data_fn in the"
" same structure");
}
+#endif
#ifdef PNG_WRITE_FLUSH_SUPPORTED
png_ptr->output_flush_fn = NULL;
diff --git a/pngrtran.c b/pngrtran.c
index e378ceb..5395396 100644
--- a/pngrtran.c
+++ b/pngrtran.c
@@ -1,8 +1,8 @@
/* pngrtran.c - transforms the data in a row for PNG readers
*
- * Last changed in libpng 1.6.2 [April 25, 2013]
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.10 [March 6, 2014]
+ * Copyright (c) 1998-2014 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@ -1116,19 +1116,25 @@
/* Ignore if all the entries are opaque (unlikely!) */
for (i=0; i<png_ptr->num_trans; ++i)
+ {
if (png_ptr->trans_alpha[i] == 255)
continue;
else if (png_ptr->trans_alpha[i] == 0)
input_has_transparency = 1;
else
+ {
+ input_has_transparency = 1;
input_has_alpha = 1;
+ break;
+ }
+ }
}
/* If no alpha we can optimize. */
if (!input_has_alpha)
{
/* Any alpha means background and associative alpha processing is
- * required, however if the alpha is 0 or 1 throughout OPTIIMIZE_ALPHA
+ * required, however if the alpha is 0 or 1 throughout OPTIMIZE_ALPHA
* and ENCODE_ALPHA are irrelevant.
*/
png_ptr->transformations &= ~PNG_ENCODE_ALPHA;
@@ -1193,7 +1199,7 @@
if (!input_has_alpha)
{
/* Any alpha means background and associative alpha processing is
- * required, however if the alpha is 0 or 1 throughout OPTIIMIZE_ALPHA
+ * required, however if the alpha is 0 or 1 throughout OPTIMIZE_ALPHA
* and ENCODE_ALPHA are irrelevant.
*/
# ifdef PNG_READ_ALPHA_MODE_SUPPORTED
@@ -1357,12 +1363,12 @@
* 12) PNG_EXPAND_16
* 13) PNG_GRAY_TO_RGB iff PNG_BACKGROUND_IS_GRAY
* 14) PNG_INVERT_MONO
- * 15) PNG_SHIFT
- * 16) PNG_PACK
- * 17) PNG_BGR
- * 18) PNG_PACKSWAP
- * 19) PNG_FILLER (includes PNG_ADD_ALPHA)
- * 20) PNG_INVERT_ALPHA
+ * 15) PNG_INVERT_ALPHA
+ * 16) PNG_SHIFT
+ * 17) PNG_PACK
+ * 18) PNG_BGR
+ * 19) PNG_PACKSWAP
+ * 20) PNG_FILLER (includes PNG_ADD_ALPHA)
* 21) PNG_SWAP_ALPHA
* 22) PNG_SWAP_BYTES
* 23) PNG_USER_TRANSFORM [must be last]
@@ -1878,31 +1884,34 @@
* the number of significant bits is 0 then no shift is done (this is an
* error condition which is silently ignored.)
*/
- if (shift > 0 && shift < 8) for (i=0; i<istop; ++i)
- {
- int component = png_ptr->palette[i].red;
+ if (shift > 0 && shift < 8)
+ for (i=0; i<istop; ++i)
+ {
+ int component = png_ptr->palette[i].red;
- component >>= shift;
- png_ptr->palette[i].red = (png_byte)component;
- }
+ component >>= shift;
+ png_ptr->palette[i].red = (png_byte)component;
+ }
shift = 8 - png_ptr->sig_bit.green;
- if (shift > 0 && shift < 8) for (i=0; i<istop; ++i)
- {
- int component = png_ptr->palette[i].green;
+ if (shift > 0 && shift < 8)
+ for (i=0; i<istop; ++i)
+ {
+ int component = png_ptr->palette[i].green;
- component >>= shift;
- png_ptr->palette[i].green = (png_byte)component;
- }
+ component >>= shift;
+ png_ptr->palette[i].green = (png_byte)component;
+ }
shift = 8 - png_ptr->sig_bit.blue;
- if (shift > 0 && shift < 8) for (i=0; i<istop; ++i)
- {
- int component = png_ptr->palette[i].blue;
+ if (shift > 0 && shift < 8)
+ for (i=0; i<istop; ++i)
+ {
+ int component = png_ptr->palette[i].blue;
- component >>= shift;
- png_ptr->palette[i].blue = (png_byte)component;
- }
+ component >>= shift;
+ png_ptr->palette[i].blue = (png_byte)component;
+ }
}
#endif /* PNG_READ_SHIFT_SUPPORTED */
}
@@ -1933,6 +1942,9 @@
info_ptr->bit_depth = 8;
info_ptr->num_trans = 0;
+
+ if (png_ptr->palette == NULL)
+ png_error (png_ptr, "Palette is NULL in indexed image");
}
else
{
@@ -2111,303 +2123,6 @@
#endif
}
-/* Transform the row. The order of transformations is significant,
- * and is very touchy. If you add a transformation, take care to
- * decide how it fits in with the other transformations here.
- */
-void /* PRIVATE */
-png_do_read_transformations(png_structrp png_ptr, png_row_infop row_info)
-{
- png_debug(1, "in png_do_read_transformations");
-
- if (png_ptr->row_buf == NULL)
- {
- /* Prior to 1.5.4 this output row/pass where the NULL pointer is, but this
- * error is incredibly rare and incredibly easy to debug without this
- * information.
- */
- png_error(png_ptr, "NULL row buffer");
- }
-
- /* The following is debugging; prior to 1.5.4 the code was never compiled in;
- * in 1.5.4 PNG_FLAG_DETECT_UNINITIALIZED was added and the macro
- * PNG_WARN_UNINITIALIZED_ROW removed. In 1.6 the new flag is set only for
- * all transformations, however in practice the ROW_INIT always gets done on
- * demand, if necessary.
- */
- if ((png_ptr->flags & PNG_FLAG_DETECT_UNINITIALIZED) != 0 &&
- !(png_ptr->flags & PNG_FLAG_ROW_INIT))
- {
- /* Application has failed to call either png_read_start_image() or
- * png_read_update_info() after setting transforms that expand pixels.
- * This check added to libpng-1.2.19 (but not enabled until 1.5.4).
- */
- png_error(png_ptr, "Uninitialized row");
- }
-
-#ifdef PNG_READ_EXPAND_SUPPORTED
- if (png_ptr->transformations & PNG_EXPAND)
- {
- if (row_info->color_type == PNG_COLOR_TYPE_PALETTE)
- {
- png_do_expand_palette(row_info, png_ptr->row_buf + 1,
- png_ptr->palette, png_ptr->trans_alpha, png_ptr->num_trans);
- }
-
- else
- {
- if (png_ptr->num_trans &&
- (png_ptr->transformations & PNG_EXPAND_tRNS))
- png_do_expand(row_info, png_ptr->row_buf + 1,
- &(png_ptr->trans_color));
-
- else
- png_do_expand(row_info, png_ptr->row_buf + 1,
- NULL);
- }
- }
-#endif
-
-#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
- if ((png_ptr->transformations & PNG_STRIP_ALPHA) &&
- !(png_ptr->transformations & PNG_COMPOSE) &&
- (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA ||
- row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA))
- png_do_strip_channel(row_info, png_ptr->row_buf + 1,
- 0 /* at_start == false, because SWAP_ALPHA happens later */);
-#endif
-
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
- if (png_ptr->transformations & PNG_RGB_TO_GRAY)
- {
- int rgb_error =
- png_do_rgb_to_gray(png_ptr, row_info,
- png_ptr->row_buf + 1);
-
- if (rgb_error)
- {
- png_ptr->rgb_to_gray_status=1;
- if ((png_ptr->transformations & PNG_RGB_TO_GRAY) ==
- PNG_RGB_TO_GRAY_WARN)
- png_warning(png_ptr, "png_do_rgb_to_gray found nongray pixel");
-
- if ((png_ptr->transformations & PNG_RGB_TO_GRAY) ==
- PNG_RGB_TO_GRAY_ERR)
- png_error(png_ptr, "png_do_rgb_to_gray found nongray pixel");
- }
- }
-#endif
-
-/* From Andreas Dilger e-mail to png-implement, 26 March 1998:
- *
- * In most cases, the "simple transparency" should be done prior to doing
- * gray-to-RGB, or you will have to test 3x as many bytes to check if a
- * pixel is transparent. You would also need to make sure that the
- * transparency information is upgraded to RGB.
- *
- * To summarize, the current flow is:
- * - Gray + simple transparency -> compare 1 or 2 gray bytes and composite
- * with background "in place" if transparent,
- * convert to RGB if necessary
- * - Gray + alpha -> composite with gray background and remove alpha bytes,
- * convert to RGB if necessary
- *
- * To support RGB backgrounds for gray images we need:
- * - Gray + simple transparency -> convert to RGB + simple transparency,
- * compare 3 or 6 bytes and composite with
- * background "in place" if transparent
- * (3x compare/pixel compared to doing
- * composite with gray bkgrnd)
- * - Gray + alpha -> convert to RGB + alpha, composite with background and
- * remove alpha bytes (3x float
- * operations/pixel compared with composite
- * on gray background)
- *
- * Greg's change will do this. The reason it wasn't done before is for
- * performance, as this increases the per-pixel operations. If we would check
- * in advance if the background was gray or RGB, and position the gray-to-RGB
- * transform appropriately, then it would save a lot of work/time.
- */
-
-#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
- /* If gray -> RGB, do so now only if background is non-gray; else do later
- * for performance reasons
- */
- if ((png_ptr->transformations & PNG_GRAY_TO_RGB) &&
- !(png_ptr->mode & PNG_BACKGROUND_IS_GRAY))
- png_do_gray_to_rgb(row_info, png_ptr->row_buf + 1);
-#endif
-
-#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\
- defined(PNG_READ_ALPHA_MODE_SUPPORTED)
- if (png_ptr->transformations & PNG_COMPOSE)
- png_do_compose(row_info, png_ptr->row_buf + 1, png_ptr);
-#endif
-
-#ifdef PNG_READ_GAMMA_SUPPORTED
- if ((png_ptr->transformations & PNG_GAMMA) &&
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
- /* Because RGB_TO_GRAY does the gamma transform. */
- !(png_ptr->transformations & PNG_RGB_TO_GRAY) &&
-#endif
-#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\
- defined(PNG_READ_ALPHA_MODE_SUPPORTED)
- /* Because PNG_COMPOSE does the gamma transform if there is something to
- * do (if there is an alpha channel or transparency.)
- */
- !((png_ptr->transformations & PNG_COMPOSE) &&
- ((png_ptr->num_trans != 0) ||
- (png_ptr->color_type & PNG_COLOR_MASK_ALPHA))) &&
-#endif
- /* Because png_init_read_transformations transforms the palette, unless
- * RGB_TO_GRAY will do the transform.
- */
- (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE))
- png_do_gamma(row_info, png_ptr->row_buf + 1, png_ptr);
-#endif
-
-#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
- if ((png_ptr->transformations & PNG_STRIP_ALPHA) &&
- (png_ptr->transformations & PNG_COMPOSE) &&
- (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA ||
- row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA))
- png_do_strip_channel(row_info, png_ptr->row_buf + 1,
- 0 /* at_start == false, because SWAP_ALPHA happens later */);
-#endif
-
-#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
- if ((png_ptr->transformations & PNG_ENCODE_ALPHA) &&
- (row_info->color_type & PNG_COLOR_MASK_ALPHA))
- png_do_encode_alpha(row_info, png_ptr->row_buf + 1, png_ptr);
-#endif
-
-#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
- if (png_ptr->transformations & PNG_SCALE_16_TO_8)
- png_do_scale_16_to_8(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED
- /* There is no harm in doing both of these because only one has any effect,
- * by putting the 'scale' option first if the app asks for scale (either by
- * calling the API or in a TRANSFORM flag) this is what happens.
- */
- if (png_ptr->transformations & PNG_16_TO_8)
- png_do_chop(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_QUANTIZE_SUPPORTED
- if (png_ptr->transformations & PNG_QUANTIZE)
- {
- png_do_quantize(row_info, png_ptr->row_buf + 1,
- png_ptr->palette_lookup, png_ptr->quantize_index);
-
- if (row_info->rowbytes == 0)
- png_error(png_ptr, "png_do_quantize returned rowbytes=0");
- }
-#endif /* PNG_READ_QUANTIZE_SUPPORTED */
-
-#ifdef PNG_READ_EXPAND_16_SUPPORTED
- /* Do the expansion now, after all the arithmetic has been done. Notice
- * that previous transformations can handle the PNG_EXPAND_16 flag if this
- * is efficient (particularly true in the case of gamma correction, where
- * better accuracy results faster!)
- */
- if (png_ptr->transformations & PNG_EXPAND_16)
- png_do_expand_16(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
- /* NOTE: moved here in 1.5.4 (from much later in this list.) */
- if ((png_ptr->transformations & PNG_GRAY_TO_RGB) &&
- (png_ptr->mode & PNG_BACKGROUND_IS_GRAY))
- png_do_gray_to_rgb(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_INVERT_SUPPORTED
- if (png_ptr->transformations & PNG_INVERT_MONO)
- png_do_invert(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_SHIFT_SUPPORTED
- if (png_ptr->transformations & PNG_SHIFT)
- png_do_unshift(row_info, png_ptr->row_buf + 1,
- &(png_ptr->shift));
-#endif
-
-#ifdef PNG_READ_PACK_SUPPORTED
- if (png_ptr->transformations & PNG_PACK)
- png_do_unpack(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED
- /* Added at libpng-1.5.10 */
- if (row_info->color_type == PNG_COLOR_TYPE_PALETTE &&
- png_ptr->num_palette_max >= 0)
- png_do_check_palette_indexes(png_ptr, row_info);
-#endif
-
-#ifdef PNG_READ_BGR_SUPPORTED
- if (png_ptr->transformations & PNG_BGR)
- png_do_bgr(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_PACKSWAP_SUPPORTED
- if (png_ptr->transformations & PNG_PACKSWAP)
- png_do_packswap(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_FILLER_SUPPORTED
- if (png_ptr->transformations & PNG_FILLER)
- png_do_read_filler(row_info, png_ptr->row_buf + 1,
- (png_uint_32)png_ptr->filler, png_ptr->flags);
-#endif
-
-#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED
- if (png_ptr->transformations & PNG_INVERT_ALPHA)
- png_do_read_invert_alpha(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED
- if (png_ptr->transformations & PNG_SWAP_ALPHA)
- png_do_read_swap_alpha(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_READ_16BIT_SUPPORTED
-#ifdef PNG_READ_SWAP_SUPPORTED
- if (png_ptr->transformations & PNG_SWAP_BYTES)
- png_do_swap(row_info, png_ptr->row_buf + 1);
-#endif
-#endif
-
-#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
- if (png_ptr->transformations & PNG_USER_TRANSFORM)
- {
- if (png_ptr->read_user_transform_fn != NULL)
- (*(png_ptr->read_user_transform_fn)) /* User read transform function */
- (png_ptr, /* png_ptr */
- row_info, /* row_info: */
- /* png_uint_32 width; width of row */
- /* png_size_t rowbytes; number of bytes in row */
- /* png_byte color_type; color type of pixels */
- /* png_byte bit_depth; bit depth of samples */
- /* png_byte channels; number of channels (1-4) */
- /* png_byte pixel_depth; bits per pixel (depth*channels) */
- png_ptr->row_buf + 1); /* start of pixel data for row */
-#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED
- if (png_ptr->user_transform_depth)
- row_info->bit_depth = png_ptr->user_transform_depth;
-
- if (png_ptr->user_transform_channels)
- row_info->channels = png_ptr->user_transform_channels;
-#endif
- row_info->pixel_depth = (png_byte)(row_info->bit_depth *
- row_info->channels);
-
- row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_info->width);
- }
-#endif
-}
-
#ifdef PNG_READ_PACK_SUPPORTED
/* Unpack pixels of 1, 2, or 4 bits per pixel into 1 byte per pixel,
* without changing the actual values. Thus, if you had a row with
@@ -2415,7 +2130,7 @@
* the numbers 0 or 1. If you would rather they contain 0 and 255, use
* png_do_shift() after this.
*/
-void /* PRIVATE */
+static void
png_do_unpack(png_row_infop row_info, png_bytep row)
{
png_debug(1, "in png_do_unpack");
@@ -2513,7 +2228,7 @@
* a row of bit depth 8, but only 5 are significant, this will shift
* the values back to 0 through 31.
*/
-void /* PRIVATE */
+static void
png_do_unshift(png_row_infop row_info, png_bytep row,
png_const_color_8p sig_bits)
{
@@ -2652,7 +2367,7 @@
#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
/* Scale rows of bit depth 16 down to 8 accurately */
-void /* PRIVATE */
+static void
png_do_scale_16_to_8(png_row_infop row_info, png_bytep row)
{
png_debug(1, "in png_do_scale_16_to_8");
@@ -2710,7 +2425,7 @@
#endif
#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED
-void /* PRIVATE */
+static void
/* Simply discard the low byte. This was the default behavior prior
* to libpng-1.5.4.
*/
@@ -2738,7 +2453,7 @@
#endif
#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED
-void /* PRIVATE */
+static void
png_do_read_swap_alpha(png_row_infop row_info, png_bytep row)
{
png_debug(1, "in png_do_read_swap_alpha");
@@ -2835,7 +2550,7 @@
#endif
#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED
-void /* PRIVATE */
+static void
png_do_read_invert_alpha(png_row_infop row_info, png_bytep row)
{
png_uint_32 row_width;
@@ -2937,7 +2652,7 @@
#ifdef PNG_READ_FILLER_SUPPORTED
/* Add filler channel if we have RGB color */
-void /* PRIVATE */
+static void
png_do_read_filler(png_row_infop row_info, png_bytep row,
png_uint_32 filler, png_uint_32 flags)
{
@@ -3124,7 +2839,7 @@
#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
/* Expand grayscale files to RGB, with or without alpha */
-void /* PRIVATE */
+static void
png_do_gray_to_rgb(png_row_infop row_info, png_bytep row)
{
png_uint_32 i;
@@ -3263,7 +2978,7 @@
* calculated to make the sum 32768. This will result in different rounding
* to that used above.
*/
-int /* PRIVATE */
+static int
png_do_rgb_to_gray(png_structrp png_ptr, png_row_infop row_info, png_bytep row)
{
@@ -3457,73 +3172,14 @@
return rgb_error;
}
#endif
-#endif /* PNG_READ_TRANSFORMS_SUPPORTED */
-#ifdef PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED
-/* Build a grayscale palette. Palette is assumed to be 1 << bit_depth
- * large of png_color. This lets grayscale images be treated as
- * paletted. Most useful for gamma correction and simplification
- * of code. This API is not used internally.
- */
-void PNGAPI
-png_build_grayscale_palette(int bit_depth, png_colorp palette)
-{
- int num_palette;
- int color_inc;
- int i;
- int v;
-
- png_debug(1, "in png_do_build_grayscale_palette");
-
- if (palette == NULL)
- return;
-
- switch (bit_depth)
- {
- case 1:
- num_palette = 2;
- color_inc = 0xff;
- break;
-
- case 2:
- num_palette = 4;
- color_inc = 0x55;
- break;
-
- case 4:
- num_palette = 16;
- color_inc = 0x11;
- break;
-
- case 8:
- num_palette = 256;
- color_inc = 1;
- break;
-
- default:
- num_palette = 0;
- color_inc = 0;
- break;
- }
-
- for (i = 0, v = 0; i < num_palette; i++, v += color_inc)
- {
- palette[i].red = (png_byte)v;
- palette[i].green = (png_byte)v;
- palette[i].blue = (png_byte)v;
- }
-}
-#endif
-
-
-#ifdef PNG_READ_TRANSFORMS_SUPPORTED
#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\
defined(PNG_READ_ALPHA_MODE_SUPPORTED)
/* Replace any alpha or transparency with the supplied background color.
* "background" is already in the screen gamma, while "background_1" is
* at a gamma of 1.0. Paletted files have already been taken care of.
*/
-void /* PRIVATE */
+static void
png_do_compose(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
{
#ifdef PNG_READ_GAMMA_SUPPORTED
@@ -4263,7 +3919,7 @@
* is 16, use gamma_16_table and gamma_shift. Build these with
* build_gamma_table().
*/
-void /* PRIVATE */
+static void
png_do_gamma(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
{
png_const_bytep gamma_table = png_ptr->gamma_table;
@@ -4464,7 +4120,7 @@
* linear.) Called only with color types that have an alpha channel. Needs the
* from_1 tables.
*/
-void /* PRIVATE */
+static void
png_do_encode_alpha(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
{
png_uint_32 row_width = row_info->width;
@@ -4530,7 +4186,7 @@
/* Expands a palette row to an RGB or RGBA row depending
* upon whether you supply trans and num_trans.
*/
-void /* PRIVATE */
+static void
png_do_expand_palette(png_row_infop row_info, png_bytep row,
png_const_colorp palette, png_const_bytep trans_alpha, int num_trans)
{
@@ -4683,7 +4339,7 @@
/* If the bit depth < 8, it is expanded to 8. Also, if the already
* expanded transparency value is supplied, an alpha channel is built.
*/
-void /* PRIVATE */
+static void
png_do_expand(png_row_infop row_info, png_bytep row,
png_const_color_16p trans_color)
{
@@ -4913,7 +4569,7 @@
/* If the bit depth is 8 and the color type is not a palette type expand the
* whole row to 16 bits. Has no effect otherwise.
*/
-void /* PRIVATE */
+static void
png_do_expand_16(png_row_infop row_info, png_bytep row)
{
if (row_info->bit_depth == 8 &&
@@ -4941,7 +4597,7 @@
#endif
#ifdef PNG_READ_QUANTIZE_SUPPORTED
-void /* PRIVATE */
+static void
png_do_quantize(png_row_infop row_info, png_bytep row,
png_const_bytep palette_lookup, png_const_bytep quantize_lookup)
{
@@ -5033,69 +4689,303 @@
}
}
#endif /* PNG_READ_QUANTIZE_SUPPORTED */
-#endif /* PNG_READ_TRANSFORMS_SUPPORTED */
-#ifdef PNG_MNG_FEATURES_SUPPORTED
-/* Undoes intrapixel differencing */
+/* Transform the row. The order of transformations is significant,
+ * and is very touchy. If you add a transformation, take care to
+ * decide how it fits in with the other transformations here.
+ */
void /* PRIVATE */
-png_do_read_intrapixel(png_row_infop row_info, png_bytep row)
+png_do_read_transformations(png_structrp png_ptr, png_row_infop row_info)
{
- png_debug(1, "in png_do_read_intrapixel");
+ png_debug(1, "in png_do_read_transformations");
- if (
- (row_info->color_type & PNG_COLOR_MASK_COLOR))
+ if (png_ptr->row_buf == NULL)
{
- int bytes_per_pixel;
- png_uint_32 row_width = row_info->width;
+ /* Prior to 1.5.4 this output row/pass where the NULL pointer is, but this
+ * error is incredibly rare and incredibly easy to debug without this
+ * information.
+ */
+ png_error(png_ptr, "NULL row buffer");
+ }
- if (row_info->bit_depth == 8)
+ /* The following is debugging; prior to 1.5.4 the code was never compiled in;
+ * in 1.5.4 PNG_FLAG_DETECT_UNINITIALIZED was added and the macro
+ * PNG_WARN_UNINITIALIZED_ROW removed. In 1.6 the new flag is set only for
+ * all transformations, however in practice the ROW_INIT always gets done on
+ * demand, if necessary.
+ */
+ if ((png_ptr->flags & PNG_FLAG_DETECT_UNINITIALIZED) != 0 &&
+ !(png_ptr->flags & PNG_FLAG_ROW_INIT))
+ {
+ /* Application has failed to call either png_read_start_image() or
+ * png_read_update_info() after setting transforms that expand pixels.
+ * This check added to libpng-1.2.19 (but not enabled until 1.5.4).
+ */
+ png_error(png_ptr, "Uninitialized row");
+ }
+
+#ifdef PNG_READ_EXPAND_SUPPORTED
+ if (png_ptr->transformations & PNG_EXPAND)
+ {
+ if (row_info->color_type == PNG_COLOR_TYPE_PALETTE)
{
- png_bytep rp;
- png_uint_32 i;
-
- if (row_info->color_type == PNG_COLOR_TYPE_RGB)
- bytes_per_pixel = 3;
-
- else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- bytes_per_pixel = 4;
-
- else
- return;
-
- for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
- {
- *(rp) = (png_byte)((256 + *rp + *(rp + 1)) & 0xff);
- *(rp+2) = (png_byte)((256 + *(rp + 2) + *(rp + 1)) & 0xff);
- }
+ png_do_expand_palette(row_info, png_ptr->row_buf + 1,
+ png_ptr->palette, png_ptr->trans_alpha, png_ptr->num_trans);
}
- else if (row_info->bit_depth == 16)
+
+ else
{
- png_bytep rp;
- png_uint_32 i;
-
- if (row_info->color_type == PNG_COLOR_TYPE_RGB)
- bytes_per_pixel = 6;
-
- else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- bytes_per_pixel = 8;
+ if (png_ptr->num_trans &&
+ (png_ptr->transformations & PNG_EXPAND_tRNS))
+ png_do_expand(row_info, png_ptr->row_buf + 1,
+ &(png_ptr->trans_color));
else
- return;
-
- for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
- {
- png_uint_32 s0 = (*(rp ) << 8) | *(rp + 1);
- png_uint_32 s1 = (*(rp + 2) << 8) | *(rp + 3);
- png_uint_32 s2 = (*(rp + 4) << 8) | *(rp + 5);
- png_uint_32 red = (s0 + s1 + 65536) & 0xffff;
- png_uint_32 blue = (s2 + s1 + 65536) & 0xffff;
- *(rp ) = (png_byte)((red >> 8) & 0xff);
- *(rp + 1) = (png_byte)(red & 0xff);
- *(rp + 4) = (png_byte)((blue >> 8) & 0xff);
- *(rp + 5) = (png_byte)(blue & 0xff);
- }
+ png_do_expand(row_info, png_ptr->row_buf + 1,
+ NULL);
}
}
+#endif
+
+#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
+ if ((png_ptr->transformations & PNG_STRIP_ALPHA) &&
+ !(png_ptr->transformations & PNG_COMPOSE) &&
+ (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA ||
+ row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA))
+ png_do_strip_channel(row_info, png_ptr->row_buf + 1,
+ 0 /* at_start == false, because SWAP_ALPHA happens later */);
+#endif
+
+#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
+ if (png_ptr->transformations & PNG_RGB_TO_GRAY)
+ {
+ int rgb_error =
+ png_do_rgb_to_gray(png_ptr, row_info,
+ png_ptr->row_buf + 1);
+
+ if (rgb_error)
+ {
+ png_ptr->rgb_to_gray_status=1;
+ if ((png_ptr->transformations & PNG_RGB_TO_GRAY) ==
+ PNG_RGB_TO_GRAY_WARN)
+ png_warning(png_ptr, "png_do_rgb_to_gray found nongray pixel");
+
+ if ((png_ptr->transformations & PNG_RGB_TO_GRAY) ==
+ PNG_RGB_TO_GRAY_ERR)
+ png_error(png_ptr, "png_do_rgb_to_gray found nongray pixel");
+ }
+ }
+#endif
+
+/* From Andreas Dilger e-mail to png-implement, 26 March 1998:
+ *
+ * In most cases, the "simple transparency" should be done prior to doing
+ * gray-to-RGB, or you will have to test 3x as many bytes to check if a
+ * pixel is transparent. You would also need to make sure that the
+ * transparency information is upgraded to RGB.
+ *
+ * To summarize, the current flow is:
+ * - Gray + simple transparency -> compare 1 or 2 gray bytes and composite
+ * with background "in place" if transparent,
+ * convert to RGB if necessary
+ * - Gray + alpha -> composite with gray background and remove alpha bytes,
+ * convert to RGB if necessary
+ *
+ * To support RGB backgrounds for gray images we need:
+ * - Gray + simple transparency -> convert to RGB + simple transparency,
+ * compare 3 or 6 bytes and composite with
+ * background "in place" if transparent
+ * (3x compare/pixel compared to doing
+ * composite with gray bkgrnd)
+ * - Gray + alpha -> convert to RGB + alpha, composite with background and
+ * remove alpha bytes (3x float
+ * operations/pixel compared with composite
+ * on gray background)
+ *
+ * Greg's change will do this. The reason it wasn't done before is for
+ * performance, as this increases the per-pixel operations. If we would check
+ * in advance if the background was gray or RGB, and position the gray-to-RGB
+ * transform appropriately, then it would save a lot of work/time.
+ */
+
+#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
+ /* If gray -> RGB, do so now only if background is non-gray; else do later
+ * for performance reasons
+ */
+ if ((png_ptr->transformations & PNG_GRAY_TO_RGB) &&
+ !(png_ptr->mode & PNG_BACKGROUND_IS_GRAY))
+ png_do_gray_to_rgb(row_info, png_ptr->row_buf + 1);
+#endif
+
+#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\
+ defined(PNG_READ_ALPHA_MODE_SUPPORTED)
+ if (png_ptr->transformations & PNG_COMPOSE)
+ png_do_compose(row_info, png_ptr->row_buf + 1, png_ptr);
+#endif
+
+#ifdef PNG_READ_GAMMA_SUPPORTED
+ if ((png_ptr->transformations & PNG_GAMMA) &&
+#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
+ /* Because RGB_TO_GRAY does the gamma transform. */
+ !(png_ptr->transformations & PNG_RGB_TO_GRAY) &&
+#endif
+#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\
+ defined(PNG_READ_ALPHA_MODE_SUPPORTED)
+ /* Because PNG_COMPOSE does the gamma transform if there is something to
+ * do (if there is an alpha channel or transparency.)
+ */
+ !((png_ptr->transformations & PNG_COMPOSE) &&
+ ((png_ptr->num_trans != 0) ||
+ (png_ptr->color_type & PNG_COLOR_MASK_ALPHA))) &&
+#endif
+ /* Because png_init_read_transformations transforms the palette, unless
+ * RGB_TO_GRAY will do the transform.
+ */
+ (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE))
+ png_do_gamma(row_info, png_ptr->row_buf + 1, png_ptr);
+#endif
+
+#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
+ if ((png_ptr->transformations & PNG_STRIP_ALPHA) &&
+ (png_ptr->transformations & PNG_COMPOSE) &&
+ (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA ||
+ row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA))
+ png_do_strip_channel(row_info, png_ptr->row_buf + 1,
+ 0 /* at_start == false, because SWAP_ALPHA happens later */);
+#endif
+
+#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
+ if ((png_ptr->transformations & PNG_ENCODE_ALPHA) &&
+ (row_info->color_type & PNG_COLOR_MASK_ALPHA))
+ png_do_encode_alpha(row_info, png_ptr->row_buf + 1, png_ptr);
+#endif
+
+#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
+ if (png_ptr->transformations & PNG_SCALE_16_TO_8)
+ png_do_scale_16_to_8(row_info, png_ptr->row_buf + 1);
+#endif
+
+#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED
+ /* There is no harm in doing both of these because only one has any effect,
+ * by putting the 'scale' option first if the app asks for scale (either by
+ * calling the API or in a TRANSFORM flag) this is what happens.
+ */
+ if (png_ptr->transformations & PNG_16_TO_8)
+ png_do_chop(row_info, png_ptr->row_buf + 1);
+#endif
+
+#ifdef PNG_READ_QUANTIZE_SUPPORTED
+ if (png_ptr->transformations & PNG_QUANTIZE)
+ {
+ png_do_quantize(row_info, png_ptr->row_buf + 1,
+ png_ptr->palette_lookup, png_ptr->quantize_index);
+
+ if (row_info->rowbytes == 0)
+ png_error(png_ptr, "png_do_quantize returned rowbytes=0");
+ }
+#endif /* PNG_READ_QUANTIZE_SUPPORTED */
+
+#ifdef PNG_READ_EXPAND_16_SUPPORTED
+ /* Do the expansion now, after all the arithmetic has been done. Notice
+ * that previous transformations can handle the PNG_EXPAND_16 flag if this
+ * is efficient (particularly true in the case of gamma correction, where
+ * better accuracy results faster!)
+ */
+ if (png_ptr->transformations & PNG_EXPAND_16)
+ png_do_expand_16(row_info, png_ptr->row_buf + 1);
+#endif
+
+#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
+ /* NOTE: moved here in 1.5.4 (from much later in this list.) */
+ if ((png_ptr->transformations & PNG_GRAY_TO_RGB) &&
+ (png_ptr->mode & PNG_BACKGROUND_IS_GRAY))
+ png_do_gray_to_rgb(row_info, png_ptr->row_buf + 1);
+#endif
+
+#ifdef PNG_READ_INVERT_SUPPORTED
+ if (png_ptr->transformations & PNG_INVERT_MONO)
+ png_do_invert(row_info, png_ptr->row_buf + 1);
+#endif
+
+#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED
+ if (png_ptr->transformations & PNG_INVERT_ALPHA)
+ png_do_read_invert_alpha(row_info, png_ptr->row_buf + 1);
+#endif
+
+#ifdef PNG_READ_SHIFT_SUPPORTED
+ if (png_ptr->transformations & PNG_SHIFT)
+ png_do_unshift(row_info, png_ptr->row_buf + 1,
+ &(png_ptr->shift));
+#endif
+
+#ifdef PNG_READ_PACK_SUPPORTED
+ if (png_ptr->transformations & PNG_PACK)
+ png_do_unpack(row_info, png_ptr->row_buf + 1);
+#endif
+
+#ifdef PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED
+ /* Added at libpng-1.5.10 */
+ if (row_info->color_type == PNG_COLOR_TYPE_PALETTE &&
+ png_ptr->num_palette_max >= 0)
+ png_do_check_palette_indexes(png_ptr, row_info);
+#endif
+
+#ifdef PNG_READ_BGR_SUPPORTED
+ if (png_ptr->transformations & PNG_BGR)
+ png_do_bgr(row_info, png_ptr->row_buf + 1);
+#endif
+
+#ifdef PNG_READ_PACKSWAP_SUPPORTED
+ if (png_ptr->transformations & PNG_PACKSWAP)
+ png_do_packswap(row_info, png_ptr->row_buf + 1);
+#endif
+
+#ifdef PNG_READ_FILLER_SUPPORTED
+ if (png_ptr->transformations & PNG_FILLER)
+ png_do_read_filler(row_info, png_ptr->row_buf + 1,
+ (png_uint_32)png_ptr->filler, png_ptr->flags);
+#endif
+
+#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED
+ if (png_ptr->transformations & PNG_SWAP_ALPHA)
+ png_do_read_swap_alpha(row_info, png_ptr->row_buf + 1);
+#endif
+
+#ifdef PNG_READ_16BIT_SUPPORTED
+#ifdef PNG_READ_SWAP_SUPPORTED
+ if (png_ptr->transformations & PNG_SWAP_BYTES)
+ png_do_swap(row_info, png_ptr->row_buf + 1);
+#endif
+#endif
+
+#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
+ if (png_ptr->transformations & PNG_USER_TRANSFORM)
+ {
+ if (png_ptr->read_user_transform_fn != NULL)
+ (*(png_ptr->read_user_transform_fn)) /* User read transform function */
+ (png_ptr, /* png_ptr */
+ row_info, /* row_info: */
+ /* png_uint_32 width; width of row */
+ /* png_size_t rowbytes; number of bytes in row */
+ /* png_byte color_type; color type of pixels */
+ /* png_byte bit_depth; bit depth of samples */
+ /* png_byte channels; number of channels (1-4) */
+ /* png_byte pixel_depth; bits per pixel (depth*channels) */
+ png_ptr->row_buf + 1); /* start of pixel data for row */
+#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED
+ if (png_ptr->user_transform_depth)
+ row_info->bit_depth = png_ptr->user_transform_depth;
+
+ if (png_ptr->user_transform_channels)
+ row_info->channels = png_ptr->user_transform_channels;
+#endif
+ row_info->pixel_depth = (png_byte)(row_info->bit_depth *
+ row_info->channels);
+
+ row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_info->width);
+ }
+#endif
}
-#endif /* PNG_MNG_FEATURES_SUPPORTED */
+
+#endif /* PNG_READ_TRANSFORMS_SUPPORTED */
#endif /* PNG_READ_SUPPORTED */
diff --git a/pngrutil.c b/pngrutil.c
index dac1a57..9638bed 100644
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -1,8 +1,8 @@
/* pngrutil.c - utilities to read a PNG file
*
- * Last changed in libpng 1.6.3 [July 18, 2013]
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.10 [March 6, 2014]
+ * Copyright (c) 1998-2014 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@ -227,10 +227,7 @@
}
else
- {
- png_chunk_benign_error(png_ptr, "CRC error");
- return (0);
- }
+ png_chunk_error(png_ptr, "CRC error");
return (1);
}
@@ -305,6 +302,10 @@
return (0);
}
+#if defined(PNG_READ_iCCP_SUPPORTED) || defined(PNG_READ_iTXt_SUPPORTED) ||\
+ defined(PNG_READ_pCAL_SUPPORTED) || defined(PNG_READ_sCAL_SUPPORTED) ||\
+ defined(PNG_READ_sPLT_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) ||\
+ defined(PNG_READ_zTXt_SUPPORTED) || defined(PNG_SEQUENTIAL_READ_SUPPORTED)
/* Manage the read buffer; this simply reallocates the buffer if it is not small
* enough (or if it is not allocated). The routine returns a pointer to the
* buffer; if an error occurs and 'warn' is set the routine returns NULL, else
@@ -337,21 +338,17 @@
else if (warn < 2) /* else silent */
{
-#ifdef PNG_WARNINGS_SUPPORTED
if (warn)
png_chunk_warning(png_ptr, "insufficient memory to read chunk");
+
else
-#endif
- {
-#ifdef PNG_ERROR_TEXT_SUPPORTED
png_chunk_error(png_ptr, "insufficient memory to read chunk");
-#endif
- }
}
}
return buffer;
}
+#endif /* PNG_READ_iCCP|iTXt|pCAL|sCAL|sPLT|tEXt|zTXt|SEQUENTIAL_READ */
/* png_inflate_claim: claim the zstream for some nefarious purpose that involves
* decompression. Returns Z_OK on success, else a zlib error code. It checks
@@ -1008,22 +1005,15 @@
if (!(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_USE))
{
if (png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN)
- {
- png_chunk_benign_error(png_ptr, "CRC error");
- }
+ return;
else
- {
- png_chunk_warning(png_ptr, "CRC error");
- return;
- }
+ png_chunk_error(png_ptr, "CRC error");
}
/* Otherwise, we (optionally) emit a warning and use the chunk. */
else if (!(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN))
- {
png_chunk_warning(png_ptr, "CRC error");
- }
}
#endif
@@ -1134,13 +1124,12 @@
void /* PRIVATE */
png_handle_sBIT(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
{
- unsigned int truelen;
+ unsigned int truelen, i;
+ png_byte sample_depth;
png_byte buf[4];
png_debug(1, "in png_handle_sBIT");
- buf[0] = buf[1] = buf[2] = buf[3] = 0;
-
if (!(png_ptr->mode & PNG_HAVE_IHDR))
png_chunk_error(png_ptr, "missing IHDR");
@@ -1159,10 +1148,16 @@
}
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
+ {
truelen = 3;
+ sample_depth = 8;
+ }
else
+ {
truelen = png_ptr->channels;
+ sample_depth = png_ptr->bit_depth;
+ }
if (length != truelen || length > 4)
{
@@ -1171,11 +1166,19 @@
return;
}
+ buf[0] = buf[1] = buf[2] = buf[3] = sample_depth;
png_crc_read(png_ptr, buf, truelen);
if (png_crc_finish(png_ptr, 0))
return;
+ for (i=0; i<truelen; ++i)
+ if (buf[i] == 0 || buf[i] > sample_depth)
+ {
+ png_chunk_benign_error(png_ptr, "invalid");
+ return;
+ }
+
if (png_ptr->color_type & PNG_COLOR_MASK_COLOR)
{
png_ptr->sig_bit.red = buf[0];
@@ -1445,7 +1448,7 @@
(sizeof local_buffer), &length,
profile + (sizeof profile_header), &size, 0);
- /* Still expect a a buffer error because we expect
+ /* Still expect a buffer error because we expect
* there to be some tag data!
*/
if (size == 0)
@@ -2959,9 +2962,8 @@
}
# endif
}
-# else /* no store support! */
+# else /* no store support: the chunk must be handled by the user callback */
PNG_UNUSED(info_ptr)
-# error untested code (reading unknown chunks with no store support)
# endif
/* Regardless of the error handling below the cached data (if any) can be
@@ -3899,7 +3901,6 @@
if (pb < pa) pa = pb, a = b;
if (pc < pa) a = c;
- c = b;
a += *row;
*row++ = (png_byte)a;
}
@@ -3907,7 +3908,8 @@
static void
png_init_filter_functions(png_structrp pp)
- /* This function is called once for every PNG image to set the
+ /* This function is called once for every PNG image (except for PNG images
+ * that only use PNG_FILTER_VALUE_NONE for all rows) to set the
* implementations required to reverse the filtering of PNG rows. Reversing
* the filter is the first transformation performed on the row data. It is
* performed in place, therefore an implementation can be selected based on
@@ -3949,10 +3951,13 @@
* PNG_FILTER_OPTIMIZATIONS to a function that overrides the generic
* implementations. See png_init_filter_functions above.
*/
- if (pp->read_filter[0] == NULL)
- png_init_filter_functions(pp);
if (filter > PNG_FILTER_VALUE_NONE && filter < PNG_FILTER_VALUE_LAST)
+ {
+ if (pp->read_filter[0] == NULL)
+ png_init_filter_functions(pp);
+
pp->read_filter[filter-1](row_info, row, prev_row);
+ }
}
#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
diff --git a/pngset.c b/pngset.c
index 7e355d1..fd718c9 100644
--- a/pngset.c
+++ b/pngset.c
@@ -1,7 +1,7 @@
/* pngset.c - storage of image information into info struct
*
- * Last changed in libpng 1.6.3 [July 18, 2013]
+ * Last changed in libpng 1.6.8 [December 19, 2013]
* Copyright (c) 1998-2013 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -527,7 +527,7 @@
# endif
))
{
- png_chunk_report(png_ptr, "Invalid palette", PNG_CHUNK_ERROR);
+ png_error(png_ptr, "Invalid palette");
return;
}
diff --git a/pngtest.c b/pngtest.c
index 8ebe97c..3b1f055 100644
--- a/pngtest.c
+++ b/pngtest.c
@@ -1,8 +1,8 @@
/* pngtest.c - a simple test program to test libpng
*
- * Last changed in libpng 1.6.2 [April 25, 2013]
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.9 [February 6, 2014]
+ * Copyright (c) 1998-2014 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@ -45,6 +45,11 @@
/* Known chunks that exist in pngtest.png must be supported or pngtest will fail
* simply as a result of re-ordering them. This may be fixed in 1.7
+ *
+ * pngtest allocates a single row buffer for each row and overwrites it,
+ * therefore if the write side doesn't support the writing of interlaced images
+ * nothing can be done for an interlaced image (and the code below will fail
+ * horribly trying to write extra data after writing garbage).
*/
#if defined PNG_READ_SUPPORTED && /* else nothing can be done */\
defined PNG_READ_bKGD_SUPPORTED &&\
@@ -58,9 +63,15 @@
defined PNG_READ_sRGB_SUPPORTED &&\
defined PNG_READ_tEXt_SUPPORTED &&\
defined PNG_READ_tIME_SUPPORTED &&\
- defined PNG_READ_zTXt_SUPPORTED
+ defined PNG_READ_zTXt_SUPPORTED &&\
+ defined PNG_WRITE_INTERLACING_SUPPORTED
-#include "zlib.h"
+#ifdef PNG_ZLIB_HEADER
+# include PNG_ZLIB_HEADER /* defined by pnglibconf.h from 1.7 */
+#else
+# include "zlib.h"
+#endif
+
/* Copied from pngpriv.h but only used in error messages below. */
#ifndef PNG_ZBUF_SIZE
# define PNG_ZBUF_SIZE 8192
@@ -116,10 +127,6 @@
static int error_count = 0; /* count calls to png_error */
static int warning_count = 0; /* count calls to png_warning */
-#ifdef __TURBOC__
-#include <mem.h>
-#endif
-
/* Define png_jmpbuf() in case we are using a pre-1.0.6 version of libpng */
#ifndef png_jmpbuf
# define png_jmpbuf(png_ptr) png_ptr->jmpbuf
@@ -573,7 +580,8 @@
/* We must free the list element too, but first kill
the memory that is to be freed. */
memset(ptr, 0x55, pinfo->size);
- png_free_default(png_ptr, pinfo);
+ if (pinfo)
+ free(pinfo);
pinfo = NULL;
break;
}
@@ -592,7 +600,8 @@
if (verbose)
printf("Freeing %p\n", ptr);
- png_free_default(png_ptr, ptr);
+ if (ptr)
+ free(ptr);
ptr = NULL;
}
#endif /* PNG_USER_MEM_SUPPORTED && PNG_DEBUG */
@@ -658,8 +667,8 @@
return 1; /* handled */
}
-static int PNGCBAPI read_user_chunk_callback(png_struct *png_ptr,
- png_unknown_chunkp chunk)
+static int PNGCBAPI
+read_user_chunk_callback(png_struct *png_ptr, png_unknown_chunkp chunk)
{
struct user_chunk_data *my_user_chunk_data =
(struct user_chunk_data*)png_get_user_chunk_ptr(png_ptr);
@@ -723,18 +732,18 @@
static void
write_sTER_chunk(png_structp write_ptr)
{
- png_byte png_sTER[5] = {115, 84, 69, 82, '\0'};
+ png_byte sTER[5] = {115, 84, 69, 82, '\0'};
if (verbose)
fprintf(STDERR, "\n stereo mode = %d\n", user_chunk_data.sTER_mode);
- png_write_chunk(write_ptr, png_sTER, &user_chunk_data.sTER_mode, 1);
+ png_write_chunk(write_ptr, sTER, &user_chunk_data.sTER_mode, 1);
}
static void
write_vpAg_chunk(png_structp write_ptr)
{
- png_byte png_vpAg[5] = {118, 112, 65, 103, '\0'};
+ png_byte vpAg[5] = {118, 112, 65, 103, '\0'};
png_byte vpag_chunk_data[9];
@@ -747,7 +756,7 @@
png_save_uint_32(vpag_chunk_data, user_chunk_data.vpAg_width);
png_save_uint_32(vpag_chunk_data + 4, user_chunk_data.vpAg_height);
vpag_chunk_data[8] = user_chunk_data.vpAg_units;
- png_write_chunk(write_ptr, png_vpAg, vpag_chunk_data, 9);
+ png_write_chunk(write_ptr, vpAg, vpag_chunk_data, 9);
}
static void
@@ -828,6 +837,7 @@
png_structp write_ptr;
png_infop write_info_ptr;
png_infop write_end_info_ptr;
+ int interlace_preserved = 1;
#else
png_structp write_ptr = NULL;
png_infop write_info_ptr = NULL;
@@ -836,7 +846,7 @@
png_bytep row_buf;
png_uint_32 y;
png_uint_32 width, height;
- int num_pass, pass;
+ int num_pass = 1, pass;
int bit_depth, color_type;
row_buf = NULL;
@@ -1042,10 +1052,26 @@
&color_type, &interlace_type, &compression_type, &filter_type))
{
png_set_IHDR(write_ptr, write_info_ptr, width, height, bit_depth,
-#ifdef PNG_WRITE_INTERLACING_SUPPORTED
color_type, interlace_type, compression_type, filter_type);
-#else
- color_type, PNG_INTERLACE_NONE, compression_type, filter_type);
+#ifndef PNG_READ_INTERLACING_SUPPORTED
+ /* num_pass will not be set below, set it here if the image is
+ * interlaced: what happens is that write interlacing is *not* turned
+ * on an the partial interlaced rows are written directly.
+ */
+ switch (interlace_type)
+ {
+ case PNG_INTERLACE_NONE:
+ num_pass = 1;
+ break;
+
+ case PNG_INTERLACE_ADAM7:
+ num_pass = 7;
+ break;
+
+ default:
+ png_error(read_ptr, "invalid interlace type");
+ /*NOT REACHED*/
+ }
#endif
}
}
@@ -1338,14 +1364,10 @@
#endif /* SINGLE_ROWBUF_ALLOC */
pngtest_debug("Writing row data");
-#if defined(PNG_READ_INTERLACING_SUPPORTED) || \
- defined(PNG_WRITE_INTERLACING_SUPPORTED)
+#ifdef PNG_READ_INTERLACING_SUPPORTED
num_pass = png_set_interlace_handling(read_ptr);
-# ifdef PNG_WRITE_SUPPORTED
- png_set_interlace_handling(write_ptr);
-# endif
-#else
- num_pass = 1;
+ if (png_set_interlace_handling(write_ptr) != num_pass)
+ png_error(write_ptr, "png_set_interlace_handling: inconsistent num_pass");
#endif
#ifdef PNGTEST_TIMING
@@ -1391,11 +1413,13 @@
}
}
-#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
- png_free_data(read_ptr, read_info_ptr, PNG_FREE_UNKN, -1);
-#endif
-#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
- png_free_data(write_ptr, write_info_ptr, PNG_FREE_UNKN, -1);
+#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
+# ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
+ png_free_data(read_ptr, read_info_ptr, PNG_FREE_UNKN, -1);
+# endif
+# ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
+ png_free_data(write_ptr, write_info_ptr, PNG_FREE_UNKN, -1);
+# endif
#endif
pngtest_debug("Reading and writing end_info data");
@@ -1575,15 +1599,14 @@
}
#ifdef PNG_WRITE_SUPPORTED /* else nothing was written */
+ if (interlace_preserved) /* else the files will be changed */
{
- int wrote_question = 0;
-
for (;;)
{
+ static int wrote_question = 0;
png_size_t num_in, num_out;
char inbuf[256], outbuf[256];
-
num_in = fread(inbuf, 1, sizeof inbuf, fpin);
num_out = fread(outbuf, 1, sizeof outbuf, fpout);
@@ -1963,9 +1986,9 @@
fprintf(STDERR,
" test ignored because libpng was not built with read support\n");
/* And skip this test */
- return 77;
+ return PNG_LIBPNG_VER < 10600 ? 0 : 77;
}
#endif
/* Generate a compiler error if there is an old png.h in the search path. */
-typedef png_libpng_version_1_6_3 Your_png_h_is_not_version_1_6_3;
+typedef png_libpng_version_1_6_10 Your_png_h_is_not_version_1_6_10;
diff --git a/pngtrans.c b/pngtrans.c
index 8f8bc5d..94f18df 100644
--- a/pngtrans.c
+++ b/pngtrans.c
@@ -1,8 +1,8 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers)
*
- * Last changed in libpng 1.6.2 [April 25, 2013]
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.9 [February 6, 2014]
+ * Copyright (c) 1998-2014 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@ -57,7 +57,9 @@
if (png_ptr->bit_depth < 8)
{
png_ptr->transformations |= PNG_PACK;
- png_ptr->usr_bit_depth = 8;
+# ifdef PNG_WRITE_SUPPORTED
+ png_ptr->usr_bit_depth = 8;
+# endif
}
}
#endif
diff --git a/pngwio.c b/pngwio.c
index e3289df..1b525f9 100644
--- a/pngwio.c
+++ b/pngwio.c
@@ -1,8 +1,8 @@
/* pngwio.c - functions for data output
*
- * Last changed in libpng 1.6.0 [February 14, 2013]
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.9 [February 6, 2014]
+ * Copyright (c) 1998-2014 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@ -149,8 +149,11 @@
# else
png_ptr->output_flush_fn = output_flush_fn;
# endif
+#else
+ PNG_UNUSED(output_flush_fn)
#endif /* PNG_WRITE_FLUSH_SUPPORTED */
+#ifdef PNG_READ_SUPPORTED
/* It is an error to read while writing a png file */
if (png_ptr->read_data_fn != NULL)
{
@@ -160,5 +163,6 @@
"Can't set both read_data_fn and write_data_fn in the"
" same structure");
}
+#endif
}
#endif /* PNG_WRITE_SUPPORTED */
diff --git a/pngwrite.c b/pngwrite.c
index b71a3d3..cff7864 100644
--- a/pngwrite.c
+++ b/pngwrite.c
@@ -1,8 +1,8 @@
/* pngwrite.c - general routines to write a PNG file
*
- * Last changed in libpng 1.6.2 [April 25, 2013]
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.10 [March 6, 2014]
+ * Copyright (c) 1998-2014 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@ -607,6 +607,71 @@
}
}
+#ifdef PNG_MNG_FEATURES_SUPPORTED
+/* Performs intrapixel differencing */
+static void
+png_do_write_intrapixel(png_row_infop row_info, png_bytep row)
+{
+ png_debug(1, "in png_do_write_intrapixel");
+
+ if ((row_info->color_type & PNG_COLOR_MASK_COLOR))
+ {
+ int bytes_per_pixel;
+ png_uint_32 row_width = row_info->width;
+ if (row_info->bit_depth == 8)
+ {
+ png_bytep rp;
+ png_uint_32 i;
+
+ if (row_info->color_type == PNG_COLOR_TYPE_RGB)
+ bytes_per_pixel = 3;
+
+ else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
+ bytes_per_pixel = 4;
+
+ else
+ return;
+
+ for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
+ {
+ *(rp) = (png_byte)((*rp - *(rp + 1)) & 0xff);
+ *(rp + 2) = (png_byte)((*(rp + 2) - *(rp + 1)) & 0xff);
+ }
+ }
+
+#ifdef PNG_WRITE_16BIT_SUPPORTED
+ else if (row_info->bit_depth == 16)
+ {
+ png_bytep rp;
+ png_uint_32 i;
+
+ if (row_info->color_type == PNG_COLOR_TYPE_RGB)
+ bytes_per_pixel = 6;
+
+ else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
+ bytes_per_pixel = 8;
+
+ else
+ return;
+
+ for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
+ {
+ png_uint_32 s0 = (*(rp ) << 8) | *(rp + 1);
+ png_uint_32 s1 = (*(rp + 2) << 8) | *(rp + 3);
+ png_uint_32 s2 = (*(rp + 4) << 8) | *(rp + 5);
+ png_uint_32 red = (png_uint_32)((s0 - s1) & 0xffffL);
+ png_uint_32 blue = (png_uint_32)((s2 - s1) & 0xffffL);
+ *(rp ) = (png_byte)((red >> 8) & 0xff);
+ *(rp + 1) = (png_byte)(red & 0xff);
+ *(rp + 4) = (png_byte)((blue >> 8) & 0xff);
+ *(rp + 5) = (png_byte)(blue & 0xff);
+ }
+ }
+#endif /* PNG_WRITE_16BIT_SUPPORTED */
+ }
+}
+#endif /* PNG_MNG_FEATURES_SUPPORTED */
+
/* Called by user to write a row of image data */
void PNGAPI
png_write_row(png_structrp png_ptr, png_const_bytep row)
@@ -1481,81 +1546,117 @@
if (png_ptr == NULL || info_ptr == NULL)
return;
+ if ((info_ptr->valid & PNG_INFO_IDAT) == 0)
+ {
+ png_app_error(png_ptr, "no rows for png_write_image to write");
+ return;
+ }
+
/* Write the file header information. */
png_write_info(png_ptr, info_ptr);
/* ------ these transformations don't touch the info structure ------- */
-#ifdef PNG_WRITE_INVERT_SUPPORTED
/* Invert monochrome pixels */
if (transforms & PNG_TRANSFORM_INVERT_MONO)
+#ifdef PNG_WRITE_INVERT_SUPPORTED
png_set_invert_mono(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_INVERT_MONO not supported");
#endif
-#ifdef PNG_WRITE_SHIFT_SUPPORTED
/* Shift the pixels up to a legal bit depth and fill in
* as appropriate to correctly scale the image.
*/
- if ((transforms & PNG_TRANSFORM_SHIFT)
- && (info_ptr->valid & PNG_INFO_sBIT))
- png_set_shift(png_ptr, &info_ptr->sig_bit);
+ if (transforms & PNG_TRANSFORM_SHIFT)
+#ifdef PNG_WRITE_SHIFT_SUPPORTED
+ if (info_ptr->valid & PNG_INFO_sBIT)
+ png_set_shift(png_ptr, &info_ptr->sig_bit);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_SHIFT not supported");
#endif
-#ifdef PNG_WRITE_PACK_SUPPORTED
/* Pack pixels into bytes */
if (transforms & PNG_TRANSFORM_PACKING)
- png_set_packing(png_ptr);
+#ifdef PNG_WRITE_PACK_SUPPORTED
+ png_set_packing(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_PACKING not supported");
#endif
-#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED
/* Swap location of alpha bytes from ARGB to RGBA */
if (transforms & PNG_TRANSFORM_SWAP_ALPHA)
+#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED
png_set_swap_alpha(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_SWAP_ALPHA not supported");
#endif
+ /* Remove a filler (X) from XRGB/RGBX/AG/GA into to convert it into
+ * RGB, note that the code expects the input color type to be G or RGB; no
+ * alpha channel.
+ */
+ if (transforms &
+ (PNG_TRANSFORM_STRIP_FILLER_AFTER|PNG_TRANSFORM_STRIP_FILLER_BEFORE))
+ {
#ifdef PNG_WRITE_FILLER_SUPPORTED
- /* Pack XRGB/RGBX/ARGB/RGBA into RGB (4 channels -> 3 channels) */
- if (transforms & PNG_TRANSFORM_STRIP_FILLER_AFTER)
- png_set_filler(png_ptr, 0, PNG_FILLER_AFTER);
+ if (transforms & PNG_TRANSFORM_STRIP_FILLER_AFTER)
+ {
+ if (transforms & PNG_TRANSFORM_STRIP_FILLER_BEFORE)
+ png_app_error(png_ptr,
+ "PNG_TRANSFORM_STRIP_FILLER: BEFORE+AFTER not supported");
- else if (transforms & PNG_TRANSFORM_STRIP_FILLER_BEFORE)
- png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE);
+ /* Continue if ignored - this is the pre-1.6.10 behavior */
+ png_set_filler(png_ptr, 0, PNG_FILLER_AFTER);
+ }
+
+ else if (transforms & PNG_TRANSFORM_STRIP_FILLER_BEFORE)
+ png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_STRIP_FILLER not supported");
#endif
+ }
-#ifdef PNG_WRITE_BGR_SUPPORTED
/* Flip BGR pixels to RGB */
if (transforms & PNG_TRANSFORM_BGR)
+#ifdef PNG_WRITE_BGR_SUPPORTED
png_set_bgr(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_BGR not supported");
#endif
-#ifdef PNG_WRITE_SWAP_SUPPORTED
/* Swap bytes of 16-bit files to most significant byte first */
if (transforms & PNG_TRANSFORM_SWAP_ENDIAN)
+#ifdef PNG_WRITE_SWAP_SUPPORTED
png_set_swap(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_SWAP_ENDIAN not supported");
#endif
-#ifdef PNG_WRITE_PACKSWAP_SUPPORTED
/* Swap bits of 1, 2, 4 bit packed pixel formats */
if (transforms & PNG_TRANSFORM_PACKSWAP)
+#ifdef PNG_WRITE_PACKSWAP_SUPPORTED
png_set_packswap(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_PACKSWAP not supported");
#endif
-#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED
/* Invert the alpha channel from opacity to transparency */
if (transforms & PNG_TRANSFORM_INVERT_ALPHA)
+#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED
png_set_invert_alpha(png_ptr);
+#else
+ png_app_error(png_ptr, "PNG_TRANSFORM_INVERT_ALPHA not supported");
#endif
/* ----------------------- end of transformations ------------------- */
/* Write the bits */
- if (info_ptr->valid & PNG_INFO_IDAT)
- png_write_image(png_ptr, info_ptr->row_pointers);
+ png_write_image(png_ptr, info_ptr->row_pointers);
/* It is REQUIRED to call this to finish writing the rest of the file */
png_write_end(png_ptr, info_ptr);
- PNG_UNUSED(transforms) /* Quiet compiler warnings */
PNG_UNUSED(params)
}
#endif
@@ -1638,14 +1739,16 @@
if (image->format & PNG_FORMAT_FLAG_ALPHA)
{
- if (image->format & PNG_FORMAT_FLAG_AFIRST)
- {
- aindex = -1;
- ++input_row; /* To point to the first component */
- ++output_row;
- }
+# ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
+ if (image->format & PNG_FORMAT_FLAG_AFIRST)
+ {
+ aindex = -1;
+ ++input_row; /* To point to the first component */
+ ++output_row;
+ }
- else
+ else
+# endif
aindex = channels;
}
@@ -1794,14 +1897,16 @@
png_bytep row_end;
int aindex;
- if (image->format & PNG_FORMAT_FLAG_AFIRST)
- {
- aindex = -1;
- ++input_row; /* To point to the first component */
- ++output_row;
- }
+# ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
+ if (image->format & PNG_FORMAT_FLAG_AFIRST)
+ {
+ aindex = -1;
+ ++input_row; /* To point to the first component */
+ ++output_row;
+ }
- else
+ else
+# endif
aindex = channels;
/* Use row_end in place of a loop counter: */
@@ -1881,7 +1986,8 @@
const png_uint_32 format = image->format;
const int channels = PNG_IMAGE_SAMPLE_CHANNELS(format);
-# ifdef PNG_FORMAT_BGR_SUPPORTED
+# if defined(PNG_FORMAT_BGR_SUPPORTED) &&\
+ defined(PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED)
const int afirst = (format & PNG_FORMAT_FLAG_AFIRST) != 0 &&
(format & PNG_FORMAT_FLAG_ALPHA) != 0;
# else
diff --git a/pngwtran.c b/pngwtran.c
index 98703f8..215bd68 100644
--- a/pngwtran.c
+++ b/pngwtran.c
@@ -1,8 +1,8 @@
/* pngwtran.c - transforms the data in a row for PNG writers
*
- * Last changed in libpng 1.6.0 [February 14, 2013]
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.9 [February 6, 2014]
+ * Copyright (c) 1998-2014 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@ -14,90 +14,14 @@
#include "pngpriv.h"
#ifdef PNG_WRITE_SUPPORTED
-
#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED
-/* Transform the data according to the user's wishes. The order of
- * transformations is significant.
- */
-void /* PRIVATE */
-png_do_write_transformations(png_structrp png_ptr, png_row_infop row_info)
-{
- png_debug(1, "in png_do_write_transformations");
-
- if (png_ptr == NULL)
- return;
-
-#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
- if (png_ptr->transformations & PNG_USER_TRANSFORM)
- if (png_ptr->write_user_transform_fn != NULL)
- (*(png_ptr->write_user_transform_fn)) /* User write transform
- function */
- (png_ptr, /* png_ptr */
- row_info, /* row_info: */
- /* png_uint_32 width; width of row */
- /* png_size_t rowbytes; number of bytes in row */
- /* png_byte color_type; color type of pixels */
- /* png_byte bit_depth; bit depth of samples */
- /* png_byte channels; number of channels (1-4) */
- /* png_byte pixel_depth; bits per pixel (depth*channels) */
- png_ptr->row_buf + 1); /* start of pixel data for row */
-#endif
-
-#ifdef PNG_WRITE_FILLER_SUPPORTED
- if (png_ptr->transformations & PNG_FILLER)
- png_do_strip_channel(row_info, png_ptr->row_buf + 1,
- !(png_ptr->flags & PNG_FLAG_FILLER_AFTER));
-#endif
-
-#ifdef PNG_WRITE_PACKSWAP_SUPPORTED
- if (png_ptr->transformations & PNG_PACKSWAP)
- png_do_packswap(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_WRITE_PACK_SUPPORTED
- if (png_ptr->transformations & PNG_PACK)
- png_do_pack(row_info, png_ptr->row_buf + 1,
- (png_uint_32)png_ptr->bit_depth);
-#endif
-
-#ifdef PNG_WRITE_SWAP_SUPPORTED
- if (png_ptr->transformations & PNG_SWAP_BYTES)
- png_do_swap(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_WRITE_SHIFT_SUPPORTED
- if (png_ptr->transformations & PNG_SHIFT)
- png_do_shift(row_info, png_ptr->row_buf + 1,
- &(png_ptr->shift));
-#endif
-
-#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED
- if (png_ptr->transformations & PNG_SWAP_ALPHA)
- png_do_write_swap_alpha(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED
- if (png_ptr->transformations & PNG_INVERT_ALPHA)
- png_do_write_invert_alpha(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_WRITE_BGR_SUPPORTED
- if (png_ptr->transformations & PNG_BGR)
- png_do_bgr(row_info, png_ptr->row_buf + 1);
-#endif
-
-#ifdef PNG_WRITE_INVERT_SUPPORTED
- if (png_ptr->transformations & PNG_INVERT_MONO)
- png_do_invert(row_info, png_ptr->row_buf + 1);
-#endif
-}
#ifdef PNG_WRITE_PACK_SUPPORTED
/* Pack pixels into bytes. Pass the true bit depth in bit_depth. The
* row_info bit depth should be 8 (one pixel per byte). The channels
* should be 1 (this only happens on grayscale and paletted images).
*/
-void /* PRIVATE */
+static void
png_do_pack(png_row_infop row_info, png_bytep row, png_uint_32 bit_depth)
{
png_debug(1, "in png_do_pack");
@@ -242,7 +166,7 @@
* would pass 3 as bit_depth, and this routine would translate the
* data to 0 to 15.
*/
-void /* PRIVATE */
+static void
png_do_shift(png_row_infop row_info, png_bytep row,
png_const_color_8p bit_depth)
{
@@ -381,7 +305,7 @@
#endif
#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED
-void /* PRIVATE */
+static void
png_do_write_swap_alpha(png_row_infop row_info, png_bytep row)
{
png_debug(1, "in png_do_write_swap_alpha");
@@ -475,7 +399,7 @@
#endif
#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED
-void /* PRIVATE */
+static void
png_do_write_invert_alpha(png_row_infop row_info, png_bytep row)
{
png_debug(1, "in png_do_write_invert_alpha");
@@ -568,70 +492,81 @@
}
}
#endif
-#endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */
-#ifdef PNG_MNG_FEATURES_SUPPORTED
-/* Undoes intrapixel differencing */
+/* Transform the data according to the user's wishes. The order of
+ * transformations is significant.
+ */
void /* PRIVATE */
-png_do_write_intrapixel(png_row_infop row_info, png_bytep row)
+png_do_write_transformations(png_structrp png_ptr, png_row_infop row_info)
{
- png_debug(1, "in png_do_write_intrapixel");
+ png_debug(1, "in png_do_write_transformations");
- if ((row_info->color_type & PNG_COLOR_MASK_COLOR))
- {
- int bytes_per_pixel;
- png_uint_32 row_width = row_info->width;
- if (row_info->bit_depth == 8)
- {
- png_bytep rp;
- png_uint_32 i;
+ if (png_ptr == NULL)
+ return;
- if (row_info->color_type == PNG_COLOR_TYPE_RGB)
- bytes_per_pixel = 3;
+#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
+ if (png_ptr->transformations & PNG_USER_TRANSFORM)
+ if (png_ptr->write_user_transform_fn != NULL)
+ (*(png_ptr->write_user_transform_fn)) /* User write transform
+ function */
+ (png_ptr, /* png_ptr */
+ row_info, /* row_info: */
+ /* png_uint_32 width; width of row */
+ /* png_size_t rowbytes; number of bytes in row */
+ /* png_byte color_type; color type of pixels */
+ /* png_byte bit_depth; bit depth of samples */
+ /* png_byte channels; number of channels (1-4) */
+ /* png_byte pixel_depth; bits per pixel (depth*channels) */
+ png_ptr->row_buf + 1); /* start of pixel data for row */
+#endif
- else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- bytes_per_pixel = 4;
+#ifdef PNG_WRITE_FILLER_SUPPORTED
+ if (png_ptr->transformations & PNG_FILLER)
+ png_do_strip_channel(row_info, png_ptr->row_buf + 1,
+ !(png_ptr->flags & PNG_FLAG_FILLER_AFTER));
+#endif
- else
- return;
+#ifdef PNG_WRITE_PACKSWAP_SUPPORTED
+ if (png_ptr->transformations & PNG_PACKSWAP)
+ png_do_packswap(row_info, png_ptr->row_buf + 1);
+#endif
- for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
- {
- *(rp) = (png_byte)((*rp - *(rp + 1)) & 0xff);
- *(rp + 2) = (png_byte)((*(rp + 2) - *(rp + 1)) & 0xff);
- }
- }
+#ifdef PNG_WRITE_PACK_SUPPORTED
+ if (png_ptr->transformations & PNG_PACK)
+ png_do_pack(row_info, png_ptr->row_buf + 1,
+ (png_uint_32)png_ptr->bit_depth);
+#endif
-#ifdef PNG_WRITE_16BIT_SUPPORTED
- else if (row_info->bit_depth == 16)
- {
- png_bytep rp;
- png_uint_32 i;
+#ifdef PNG_WRITE_SWAP_SUPPORTED
+ if (png_ptr->transformations & PNG_SWAP_BYTES)
+ png_do_swap(row_info, png_ptr->row_buf + 1);
+#endif
- if (row_info->color_type == PNG_COLOR_TYPE_RGB)
- bytes_per_pixel = 6;
+#ifdef PNG_WRITE_SHIFT_SUPPORTED
+ if (png_ptr->transformations & PNG_SHIFT)
+ png_do_shift(row_info, png_ptr->row_buf + 1,
+ &(png_ptr->shift));
+#endif
- else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- bytes_per_pixel = 8;
+#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED
+ if (png_ptr->transformations & PNG_SWAP_ALPHA)
+ png_do_write_swap_alpha(row_info, png_ptr->row_buf + 1);
+#endif
- else
- return;
+#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED
+ if (png_ptr->transformations & PNG_INVERT_ALPHA)
+ png_do_write_invert_alpha(row_info, png_ptr->row_buf + 1);
+#endif
- for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
- {
- png_uint_32 s0 = (*(rp ) << 8) | *(rp + 1);
- png_uint_32 s1 = (*(rp + 2) << 8) | *(rp + 3);
- png_uint_32 s2 = (*(rp + 4) << 8) | *(rp + 5);
- png_uint_32 red = (png_uint_32)((s0 - s1) & 0xffffL);
- png_uint_32 blue = (png_uint_32)((s2 - s1) & 0xffffL);
- *(rp ) = (png_byte)((red >> 8) & 0xff);
- *(rp + 1) = (png_byte)(red & 0xff);
- *(rp + 4) = (png_byte)((blue >> 8) & 0xff);
- *(rp + 5) = (png_byte)(blue & 0xff);
- }
- }
-#endif /* PNG_WRITE_16BIT_SUPPORTED */
- }
+#ifdef PNG_WRITE_BGR_SUPPORTED
+ if (png_ptr->transformations & PNG_BGR)
+ png_do_bgr(row_info, png_ptr->row_buf + 1);
+#endif
+
+#ifdef PNG_WRITE_INVERT_SUPPORTED
+ if (png_ptr->transformations & PNG_INVERT_MONO)
+ png_do_invert(row_info, png_ptr->row_buf + 1);
+#endif
}
-#endif /* PNG_MNG_FEATURES_SUPPORTED */
+#endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */
#endif /* PNG_WRITE_SUPPORTED */
diff --git a/pngwutil.c b/pngwutil.c
index 49e6a2d..755bbdb 100644
--- a/pngwutil.c
+++ b/pngwutil.c
@@ -2309,7 +2309,8 @@
* been specified by the application, and then writes the row out with the
* chosen filter.
*/
-static void png_write_filtered_row(png_structrp png_ptr, png_bytep filtered_row,
+static void
+png_write_filtered_row(png_structrp png_ptr, png_bytep filtered_row,
png_size_t row_bytes);
#define PNG_MAXSUM (((png_uint_32)(-1)) >> 1)
diff --git a/projects/vstudio/readme.txt b/projects/vstudio/readme.txt
index 8edd4bb..2ee18ff 100644
--- a/projects/vstudio/readme.txt
+++ b/projects/vstudio/readme.txt
@@ -1,7 +1,7 @@
VisualStudio instructions
-libpng version 1.6.3 - July 18, 2013
+libpng version 1.6.10 - March 6, 2014
Copyright (c) 1998-2010 Glenn Randers-Pehrson
diff --git a/projects/vstudio/zlib.props b/projects/vstudio/zlib.props
index 9e06e3a..8438f36 100644
--- a/projects/vstudio/zlib.props
+++ b/projects/vstudio/zlib.props
@@ -2,7 +2,7 @@
<!--
* zlib.props - location of zlib source
*
- * libpng version 1.6.3 - July 18, 2013
+ * libpng version 1.6.10 - March 6, 2014
*
* Copyright (c) 1998-2011 Glenn Randers-Pehrson
*
diff --git a/scripts/README.txt b/scripts/README.txt
index 824439e..c468d97 100644
--- a/scripts/README.txt
+++ b/scripts/README.txt
@@ -1,9 +1,9 @@
-Makefiles for libpng version 1.6.3 - July 18, 2013
+Makefiles for libpng version 1.6.10 - March 6, 2014
pnglibconf.h.prebuilt => Stores configuration settings
makefile.linux => Linux/ELF makefile
- (gcc, creates libpng16.so.16.1.6.3)
+ (gcc, creates libpng16.so.16.1.6.10)
makefile.gcc => Generic makefile (gcc, creates static libpng.a)
makefile.knr => Archaic UNIX Makefile that converts files with
ansi2knr (Requires ansi2knr.c from
@@ -20,7 +20,7 @@
makefile.dec => DEC Alpha UNIX makefile
makefile.dj2 => DJGPP 2 makefile
makefile.elf => Linux/ELF makefile symbol versioning,
- (gcc, creates libpng16.so.16.1.6.3)
+ (gcc, creates libpng16.so.16.1.6.10)
makefile.freebsd => FreeBSD makefile
makefile.gcc => Generic gcc makefile
makefile.hpgcc => HPUX makefile using gcc
@@ -35,12 +35,12 @@
makefile.os2 => OS/2 Makefile (gcc and emx, requires libpng.def)
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
makefile.sggcc => Silicon Graphics (gcc,
- creates libpng16.so.16.1.6.3)
+ creates libpng16.so.16.1.6.10)
makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib)
makefile.solaris => Solaris 2.X makefile (gcc,
- creates libpng16.so.16.1.6.3)
+ creates libpng16.so.16.1.6.10)
makefile.so9 => Solaris 9 makefile (gcc,
- creates libpng16.so.16.1.6.3)
+ creates libpng16.so.16.1.6.10)
makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
makefile.sunos => Sun makefile
makefile.32sunu => Sun Ultra 32-bit makefile
diff --git a/scripts/def.dfn b/scripts/def.dfn
index 0e539a6..c4b5a38 100644
--- a/scripts/def.dfn
+++ b/scripts/def.dfn
@@ -21,7 +21,7 @@
PNG_DFN "OS2 CODE PRELOAD MOVEABLE DISCARDABLE"
PNG_DFN ""
PNG_DFN "EXPORTS"
-PNG_DFN ";Version 1.6.3"
+PNG_DFN ";Version 1.6.10"
#define PNG_EXPORTA(ordinal, type, name, args, attributes)\
PNG_DFN "@" SYMBOL_PREFIX "@@" name "@"
diff --git a/scripts/descrip.mms b/scripts/descrip.mms
index eb9a807..463c425 100644
--- a/scripts/descrip.mms
+++ b/scripts/descrip.mms
@@ -33,20 +33,20 @@
# Other dependencies.
-png.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h, pnginfo.h, pngdebug.h
-pngpread.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h, pnginfo.h, pngdebug.h
-pngset.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h, pnginfo.h, pngdebug.h
-pngget.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h, pnginfo.h, pngdebug.h
-pngread.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h, pnginfo.h, pngdebug.h
-pngrtran.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h, pnginfo.h, pngdebug.h
-pngrutil.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h, pnginfo.h, pngdebug.h
-pngerror.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h, pnginfo.h, pngdebug.h
-pngmem.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h, pnginfo.h, pngdebug.h
-pngrio.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h, pnginfo.h, pngdebug.h
-pngwio.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h, pnginfo.h, pngdebug.h
-pngtrans.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h, pnginfo.h, pngdebug.h
-pngwrite.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h, pnginfo.h, pngdebug.h
-pngwtran.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h, pnginfo.h, pngdebug.h
-pngwutil.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h, pnginfo.h, pngdebug.h
+png.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
+pngpread.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
+pngset.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
+pngget.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
+pngread.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
+pngrtran.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
+pngrutil.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
+pngerror.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
+pngmem.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
+pngrio.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
+pngwio.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
+pngtrans.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
+pngwrite.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
+pngwtran.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
+pngwutil.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
-pngtest.obj : png.h, pngconf.h
+pngtest.obj : png.h, pngconf.h, pnglibconf.h
diff --git a/scripts/dfn.awk b/scripts/dfn.awk
index 89b92d5..afa498c 100644
--- a/scripts/dfn.awk
+++ b/scripts/dfn.awk
Binary files differ
diff --git a/scripts/intprefix.dfn b/scripts/intprefix.dfn
index 790bdfe..fa59f88 100644
--- a/scripts/intprefix.dfn
+++ b/scripts/intprefix.dfn
@@ -15,5 +15,8 @@
#define PNG_INTERNAL_FUNCTION(type, name, args, attributes)\
PNG_DFN "@" name "@"
+#define PNG_INTERNAL_CALLBACK(type, name, args, attributes)\
+ PNG_DFN "@" name "@"
+
#define PNGPREFIX_H /* self generation */
#include "../pngpriv.h"
diff --git a/scripts/libpng-config-head.in b/scripts/libpng-config-head.in
index 441991f..462de74 100755
--- a/scripts/libpng-config-head.in
+++ b/scripts/libpng-config-head.in
@@ -11,7 +11,7 @@
# Modeled after libxml-config.
-version=1.6.3
+version=1.6.10
prefix=""
libdir=""
libs=""
diff --git a/scripts/libpng.pc.in b/scripts/libpng.pc.in
index 543aef7..1ae258b 100644
--- a/scripts/libpng.pc.in
+++ b/scripts/libpng.pc.in
@@ -5,6 +5,6 @@
Name: libpng
Description: Loads and saves PNG files
-Version: 1.6.3
+Version: 1.6.10
Libs: -L${libdir} -lpng16
Cflags: -I${includedir}
diff --git a/scripts/makefile.32sunu b/scripts/makefile.32sunu
index 6eef5b7..c6e7fed 100644
--- a/scripts/makefile.32sunu
+++ b/scripts/makefile.32sunu
@@ -1,6 +1,6 @@
# makefile for libpng on Solaris 2.x with cc
# Contributed by William L. Sebok, based on makefile.linux
-# Copyright (C) 2002, 2006, 2010-2011 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2006, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 1998 Greg Roelofs
# Copyright (C) 1996, 1997 Andreas Dilger
@@ -45,8 +45,8 @@
WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
-Wmissing-declarations -Wtraditional -Wcast-align \
-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
-CFLAGS=-I$(ZLIBINC) $(SUN_CC_FLAGS) \
- # $(WARNMORE) -g -DPNG_DEBUG=5
+CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
+CFLAGS=$(SUN_CC_FLAGS) # $(WARNMORE) -g
LDFLAGS=$(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB) libpng.a -lz -lm
INCPATH=$(prefix)/include
@@ -77,8 +77,11 @@
.SUFFIXES: .c .o .pic.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
.c.pic.o:
- $(CC) -c $(CFLAGS) -KPIC -o $@ $*.c
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -KPIC -o $@ $*.c
all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
@@ -196,7 +199,7 @@
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
- $(CC) $(SUN_CC_FLAGS) -I$(DI) -I$(ZLIBINC) \
+ $(CC) $(SUN_CC_FLAGS) -I$(DI) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-o pngtestd -L$(DL) -R$(DL) `$(BINPATH)/$(LIBNAME)-config --ldflags` \
$(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB)
@@ -205,7 +208,7 @@
test-installed:
echo
echo Testing installed dynamic shared library.
- $(CC) $(SUN_CC_FLAGS) -I$(ZLIBINC) \
+ $(CC) $(SUN_CC_FLAGS) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags` \
$(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB)
@@ -222,20 +225,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.64sunu b/scripts/makefile.64sunu
index 1aaf696..6186290 100644
--- a/scripts/makefile.64sunu
+++ b/scripts/makefile.64sunu
@@ -1,6 +1,6 @@
# makefile for libpng on Solaris 2.x with cc
# Contributed by William L. Sebok, based on makefile.linux
-# Copyright (C) 2002, 2006, 2010-2011 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2006, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 1998 Greg Roelofs
# Copyright (C) 1996, 1997 Andreas Dilger
@@ -45,8 +45,8 @@
WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
-Wmissing-declarations -Wtraditional -Wcast-align \
-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
-CFLAGS=-I$(ZLIBINC) $(SUN_CC_FLAGS) \
- # $(WARNMORE) -g -DPNG_DEBUG=5
+CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
+CFLAGS= $(SUN_CC_FLAGS) # $(WARNMORE) -g
LDFLAGS=-L. -R. $(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng16 -lz -lm
INCPATH=$(prefix)/include
@@ -77,8 +77,11 @@
.SUFFIXES: .c .o .pic.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
.c.pic.o:
- $(CC) -c $(CFLAGS) -KPIC -o $@ $*.c
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -KPIC -o $@ $*.c
all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
@@ -196,7 +199,7 @@
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
- $(CC) $(SUN_CC_FLAGS) -I$(DI) -I$(ZLIBINC) \
+ $(CC) $(SUN_CC_FLAGS) -I$(DI) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-o pngtestd -L$(DL) -R$(DL) `$(BINPATH)/$(LIBNAME)-config --ldflags` \
$(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB)
@@ -205,7 +208,7 @@
test-installed:
echo
echo Testing installed dynamic shared library.
- $(CC) $(SUN_CC_FLAGS) -I$(ZLIBINC) \
+ $(CC) $(SUN_CC_FLAGS) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags` \
$(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB)
@@ -222,20 +225,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.aix b/scripts/makefile.aix
index ae89cd4..5f62d50 100644
--- a/scripts/makefile.aix
+++ b/scripts/makefile.aix
@@ -1,5 +1,5 @@
# makefile for libpng using gcc (generic, static library)
-# Copyright (C) 2002, 2006-2009 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2006-2009, 2014 Glenn Randers-Pehrson
# Copyright (C) 2000 Cosmin Truta
# Copyright (C) 2000 Marc O. Gloor (AIX support added, from makefile.gcc)
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
@@ -21,7 +21,7 @@
RM_F = rm -f
LN_SF = ln -f -s
-LIBNAME=libpng16
+LIBNAME = libpng16
PNGMAJ = 16
prefix=/usr/local
@@ -41,42 +41,37 @@
DI=$(DESTDIR)$(INCPATH)
DL=$(DESTDIR)$(LIBPATH)
-CDEBUG = -g -DPNG_DEBUG=5
-LDDEBUG =
-CRELEASE = -O2
-LDRELEASE = -s
-WARNMORE=-W -Wall
-CFLAGS = -I$(ZLIBINC) $(WARNMORE) $(CRELEASE)
-LDFLAGS = -L. -L$(ZLIBLIB) -lpng16 -lz -lm $(LDRELEASE)
-
-# File extensions
-O=.o
-A=.a
-E=
+WARNMORE =
+CPPFLAGS = -I$(ZLIBINC) # -DPNG_DEBUG=5
+CFLAGS = -W -Wall -O2 # $(WARNMORE) -g
+LDFLAGS = -L. -L$(ZLIBLIB) -lpng16 -lz -lm
# Variables
-OBJS = png$(O) pngerror$(O) pngget$(O) pngmem$(O) pngpread$(O) \
- pngread$(O) pngrio$(O) pngrtran$(O) pngrutil$(O) pngset$(O) \
- pngtrans$(O) pngwio$(O) pngwrite$(O) pngwtran$(O) pngwutil$(O)
+OBJS = png.o pngerror.o pngget.o pngmem.o pngpread.o \
+ pngread.o pngrio.o pngrtran.o pngrutil.o pngset.o \
+ pngtrans.o pngwio.o pngwrite.o pngwtran.o pngwutil.o
# Targets
-all: $(LIBNAME)$(A) pngtest$(E)
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
+all: $(LIBNAME).a pngtest$(E)
include scripts/pnglibconf.mak
REMOVE = $(RM_F)
DFNFLAGS = $(DEFS) $(CPPFLAGS)
-$(LIBNAME)$(A): $(OBJS)
+$(LIBNAME).a: $(OBJS)
$(AR_RC) $@ $(OBJS)
$(RANLIB) $@
test: pngtest$(E)
./pngtest$(E)
-pngtest$(E): pngtest$(O) $(LIBNAME)$(A)
- $(LD) -o $@ pngtest$(O) $(LDFLAGS)
+pngtest$(E): pngtest.o $(LIBNAME).a
+ $(LD) -o $@ pngtest.o $(LDFLAGS)
-install: $(LIBNAME)$(A)
+install: $(LIBNAME).a
-@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
-@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
@@ -92,30 +87,30 @@
$(DI)/$(LIBNAME)/pnglibconf.h
-@$(RM_F) -r $(DI)/libpng
(cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
- -@$(RM_F) $(DL)/$(LIBNAME)$(A)
- -@$(RM_F) $(DL)/libpng$(A)
- cp $(LIBNAME)$(A) $(DL)/$(LIBNAME)$(A)
- chmod 644 $(DL)/$(LIBNAME)$(A)
- (cd $(DL); $(LN_SF) $(LIBNAME)$(A) libpng$(A))
+ -@$(RM_F) $(DL)/$(LIBNAME).a
+ -@$(RM_F) $(DL)/libpng.a
+ cp $(LIBNAME).a $(DL)/$(LIBNAME).a
+ chmod 644 $(DL)/$(LIBNAME).a
+ (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
(cd $(DI); $(LN_SF) libpng/* .;)
clean:
- $(RM_F) *.o $(LIBNAME)$(A) pngtest pngout.png pnglibconf.h
+ $(RM_F) *.o $(LIBNAME).a pngtest pngout.png pnglibconf.h
-png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtest$(O): png.h pngconf.h pnglibconf.h
+pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.atari b/scripts/makefile.atari
index 1aeb7d5..051d303 100644
--- a/scripts/makefile.atari
+++ b/scripts/makefile.atari
@@ -1,5 +1,5 @@
# makefile for libpng
-# Copyright (C) 2002 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2014 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
#
# This code is released under the libpng license.
@@ -9,9 +9,10 @@
# Modified for LC56/ATARI assumes libz.lib is in same dir and uses default
# rules for library management
#
-CFLAGS=-I..\zlib -O
+CPPFLAGS = -I..\zlib
+CFLAGS = -O
LBR = png.lib
-LDFLAGS=-lpng -lz -lm
+LDFLAGS = -L. -L..\zlib -lpng -lz -lm
# where make install puts libpng.a and png.h
prefix=/usr/local
@@ -36,6 +37,9 @@
all: $(LBR) pngtest.ttp
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
+
$(LBR): $(OBJS)
$(OBJS): pngpriv.h png.h pngconf.h pnglibconf.h pnginfo.h pngstruct.h pngdebug.h
diff --git a/scripts/makefile.bc32 b/scripts/makefile.bc32
index b58c571..c2a9122 100644
--- a/scripts/makefile.bc32
+++ b/scripts/makefile.bc32
@@ -43,7 +43,8 @@
# -d merge duplicate strings
# -k- turn off standard stack frame
# -w display all warnings
-CFLAGS=-I$(ZLIB_DIR) -O2 -d -k- -w $(TARGET_CPU) $(CDEBUG)
+CPPFLAGS=-I$(ZLIB_DIR)
+CFLAGS=-O2 -d -k- -w $(TARGET_CPU) $(CDEBUG)
# -M generate map file
LDFLAGS=-L$(ZLIB_DIR) -M $(LDEBUG)
@@ -89,10 +90,11 @@
# Braces let make "batch" calls to the compiler,
# 2 calls instead of 12; space is important.
.c.obj:
- $(CC) $(CFLAGS) -c {$*.c }
+ $(CC) $(CPPFLAGS) $(CFLAGS) -c {$*.c }
.c.exe:
- $(CC) $(CFLAGS) $(LDFLAGS) $*.c $(LIBNAME) zlib.lib $(NOEHLIB)
+ $(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) $*.c \
+ $(LIBNAME) zlib.lib $(NOEHLIB)
.obj.exe:
$(LD) $(LDFLAGS) $*.obj $(LIBNAME) zlib.lib $(NOEHLIB)
@@ -114,21 +116,21 @@
pnglibconf.h: scripts\pnglibconf.h.prebuilt
copy scripts\pnglibconf.h.prebuilt $@
-png.obj: png.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.obj: pngerror.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.obj: pngget.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.obj: pngmem.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.obj: pngpread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.obj: pngread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.obj: pngrio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.obj: pngrtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.obj: pngrutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.obj: pngset.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.obj: pngtrans.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.obj: pngwio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.obj: pngwrite.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.obj: pngwtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.obj: pngwutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.obj: png.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.obj: pngerror.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.obj: pngget.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.obj: pngmem.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.obj: pngpread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.obj: pngread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.obj: pngrio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.obj: pngrtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.obj: pngrutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.obj: pngset.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.obj: pngtrans.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.obj: pngwio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.obj: pngwrite.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.obj: pngwtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.obj: pngwutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.obj: pngtest.c png.h pngconf.h pnglibconf.h
$(LIBNAME): $(OBJS)
diff --git a/scripts/makefile.beos b/scripts/makefile.beos
index 9bf0c07..f897d11 100644
--- a/scripts/makefile.beos
+++ b/scripts/makefile.beos
@@ -1,6 +1,6 @@
# makefile for libpng on BeOS x86 ELF with gcc
# modified from makefile.linux by Sander Stoks
-# Copyright (C) 2002, 2006, 2008, 2010-2011 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2006, 2008, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 1999 Greg Roelofs
# Copyright (C) 1996, 1997 Andreas Dilger
#
@@ -40,8 +40,8 @@
# On BeOS, -O1 is actually better than -O3. This is a known bug but it's
# still here in R4.5
-CFLAGS=-I$(ZLIBINC) -W -Wall -O1 -funroll-loops \
- $(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5
+CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
+CFLAGS=-W -Wall -O1 -funroll-loops $(ALIGN) # $(WARNMORE) -g
# LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng -lz
LDFLAGS=-L. -Wl,-soname=$(LIBSOMAJ) -L$(ZLIBLIB) -lz
@@ -76,6 +76,9 @@
.SUFFIXES: .c .o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
# try include scripts/pnglibconf.mak for more options
@@ -176,14 +179,14 @@
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) $(CFLAGS) \
+ $(CC) -I$(DI) $(CPPFLAGS) $(CFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(DL) -L$(ZLIBLIB) -Wl,-rpath $(ZLIBLIB):$(DL) \
-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
./pngtestd pngtest.png
test-installed:
- $(CC) $(CFLAGS) \
+ $(CC) $(CPPFLAGS) $(CFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
@@ -196,20 +199,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.bor b/scripts/makefile.bor
index e3b36a5..a032510 100644
--- a/scripts/makefile.bor
+++ b/scripts/makefile.bor
@@ -51,7 +51,8 @@
# -w set all warnings on
# -O2 optimize for speed
# -Z global optimization
-CFLAGS=-O2 -Z -X- -w -I$(ZLIB_DIR) -$(TARGET_CPU) $(MODEL_ARG) $(CDEBUG)
+CPPFLAGS=-I$(ZLIB_DIR)
+CFLAGS=-O2 -Z -X- -w -$(TARGET_CPU) $(MODEL_ARG) $(CDEBUG)
# -M generate map file
LDFLAGS=-M -L$(ZLIB_DIR) $(MODEL_ARG) $(LDEBUG)
@@ -99,10 +100,11 @@
# Braces let make "batch" calls to the compiler,
# 2 calls instead of 12; space is important.
.c.obj:
- $(CC) $(CFLAGS) -c {$*.c }
+ $(CC) $(CPPFLAGS) $(CFLAGS) -c {$*.c }
.c.exe:
- $(CC) $(CFLAGS) $(LDFLAGS) $*.c $(LIBNAME) zlib_$(MODEL).lib $(NOEHLIB)
+ $(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) $*.c \
+ $(LIBNAME) zlib_$(MODEL).lib $(NOEHLIB)
## Major targets
@@ -121,21 +123,21 @@
## Minor Targets
-png.obj: png.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.obj: pngerror.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.obj: pngget.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.obj: pngmem.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.obj: pngpread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.obj: pngread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.obj: pngrio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.obj: pngrtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.obj: pngrutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.obj: pngset.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.obj: pngtrans.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.obj: pngwio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.obj: pngwrite.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.obj: pngwtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.obj: pngwutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.obj: png.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.obj: pngerror.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.obj: pngget.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.obj: pngmem.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.obj: pngpread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.obj: pngread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.obj: pngrio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.obj: pngrtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.obj: pngrutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.obj: pngset.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.obj: pngtrans.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.obj: pngwio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.obj: pngwrite.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.obj: pngwtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.obj: pngwutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
$(LIBNAME): $(OBJS)
-del $(LIBNAME)
diff --git a/scripts/makefile.cegcc b/scripts/makefile.cegcc
index c5eeca2..e2ff273 100644
--- a/scripts/makefile.cegcc
+++ b/scripts/makefile.cegcc
@@ -23,14 +23,14 @@
VERMAJ = 1
VERMIN = 6
-VERMIC = 3
+VERMIC = 10
VER = $(VERMAJ).$(VERMIN).$(VERMIC)
NAME = libpng
PACKAGE = $(NAME)-$(VER)
BIN = libpng16-0.dll
LIB = libpng16.a libpng16.dll.a libpng.a libpng.dll.a
-INCLUDE = png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+INCLUDE = png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
PC = libpng16.pc libpng.pc
MANIFESTVERBIN = "Libpng-$(VER): Binary files"
diff --git a/scripts/makefile.darwin b/scripts/makefile.darwin
index 814fef5..7c38c26 100644
--- a/scripts/makefile.darwin
+++ b/scripts/makefile.darwin
@@ -1,5 +1,5 @@
# makefile for libpng on Darwin / Mac OS X
-# Copyright (C) 2002, 2004, 2006, 2008, 2010-2011 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2004, 2006, 2008, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 2001 Christoph Pfisterer
# derived from makefile.linux:
# Copyright (C) 1998, 1999 Greg Roelofs
@@ -37,8 +37,9 @@
RM_F=/bin/rm -f
ARCH=-arch ppc -arch i386 -arch x86_64
-# CFLAGS=-I$(ZLIBINC) -W -Wall -O3 -funroll-loops
-CFLAGS=-I$(ZLIBINC) -W -Wall -O -funroll-loops $(ARCH)
+CPPFLAGS=-I$(ZLIBINC)
+# CFLAGS=-W -Wall -O3 -funroll-loops
+CFLAGS=-W -Wall -O -funroll-loops $(ARCH)
LDFLAGS=-L. -L$(ZLIBLIB) -lpng16 -lz $(ARCH)
INCPATH=$(prefix)/include
@@ -69,8 +70,11 @@
.SUFFIXES: .c .o .pic.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
.c.pic.o:
- $(CC) -c $(CFLAGS) -fno-common -o $@ $*.c
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -fno-common -o $@ $*.c
all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
@@ -176,14 +180,14 @@
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) -I$(ZLIBINC) \
+ $(CC) -I$(DI) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(DL) -L$(ZLIBLIB) \
-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
./pngtestd pngtest.png
test-installed:
- $(CC) $(CFLAGS) \
+ $(CC) $(CPPFLAGS) $(CFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(ZLIBLIB) \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
@@ -199,20 +203,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.dec b/scripts/makefile.dec
index 79e3724..1ba9efb 100644
--- a/scripts/makefile.dec
+++ b/scripts/makefile.dec
@@ -1,5 +1,5 @@
# makefile for libpng on DEC Alpha Unix
-# Copyright (C) 2000-2002, 2006, 2010-2011 Glenn Randers-Pehrson
+# Copyright (C) 2000-2002, 2006, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
#
# This code is released under the libpng license.
@@ -53,13 +53,17 @@
ZLIBLIB=../zlib
ZLIBINC=../zlib
-CFLAGS=-std -w1 -I$(ZLIBINC) -O # -g -DPNG_DEBUG=1
+CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
+CFLAGS=-std -w1 -O # -g
LDFLAGS=-L$(ZLIBLIB) -rpath $(ZLIBLIB) libpng.a -lz -lm
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
pngwtran.o pngmem.o pngerror.o pngpread.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
all: $(LIBSO) libpng.a pngtest libpng.pc libpng-config
# see scripts/pnglibconf.mak for more options
@@ -161,7 +165,7 @@
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
- $(CC) -w1 -I$(DI) -I$(ZLIBINC) \
+ $(CC) -w1 -I$(DI) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(DL) -L$(ZLIBLIB) -R$(ZLIBLIB) -R$(DL) \
-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
@@ -170,7 +174,7 @@
test-installed:
echo
echo Testing installed dynamic shared library.
- $(CC) -w1 -I$(ZLIBINC) \
+ $(CC) -w1 $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(ZLIBLIB) -R$(ZLIBLIB) \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
@@ -183,20 +187,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.dj2 b/scripts/makefile.dj2
index ad117bc..a43f34a 100644
--- a/scripts/makefile.dj2
+++ b/scripts/makefile.dj2
@@ -1,5 +1,5 @@
# DJGPP (DOS gcc) makefile for libpng
-# Copyright (C) 2002, 2006, 2009-2010-2011 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2006, 2009-2014 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
#
# This code is released under the libpng license.
@@ -13,7 +13,8 @@
LIBPATH=$(prefix)/lib
CC=gcc
-CFLAGS=-I../zlib -O -DPNG_NO_SNPRINTF
+CPPFLAGS=-I../zlib -DPNG_NO_SNPRINTF
+CFLAGS=-O
LDFLAGS=-L. -L../zlib/ -lpng -lz -lm
RANLIB=ranlib
@@ -22,6 +23,9 @@
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o pngwtran.o \
pngmem.o pngerror.o pngpread.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
all: libpng.a pngtest
# see scripts/pnglibconf.mak for more options
@@ -43,20 +47,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.elf b/scripts/makefile.elf
index 15a8ee6..6da6d4a 100644
--- a/scripts/makefile.elf
+++ b/scripts/makefile.elf
@@ -1,5 +1,5 @@
# makefile for libpng.a and libpng16.so on Linux ELF with gcc
-# Copyright (C) 1998, 1999, 2002, 2006, 2008, 2010-2011 Greg Roelofs
+# Copyright (C) 1998, 1999, 2002, 2006, 2008, 2010-2014 Greg Roelofs
# and Glenn Randers-Pehrson
# Copyright (C) 1996, 1997 Andreas Dilger
#
@@ -54,8 +54,8 @@
# for pgcc version 2.95.1, -O3 is buggy; don't use it.
-CFLAGS=-W -Wall -D_REENTRANT -O2 \
- $(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5
+CPPFLAGS=-D_REENTRANT # -DPNG_DEBUG=5
+CFLAGS=-W -Wall -O2 $(ALIGN) # $(WARNMORE) -g
LDFLAGS=-L. -lpng16
LDFLAGS_A=libpng.a -lz -lm
@@ -90,6 +90,9 @@
.SUFFIXES: .c .o .pic.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
.c.pic.o:
$(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
@@ -111,7 +114,7 @@
-e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
libpng.syms: png.h pngconf.h pnglibconf.h
- $(CC) $(CFLAGS) -E -DPNG_BUILDSYMS -DPNG_INTERNAL png.h |\
+ $(CC) $(CPPFLAGS) $(CFLAGS) -E -DPNG_BUILDSYMS -DPNG_INTERNAL png.h |\
awk -F '[\t [\\]();]' -v PNGMAJ=$(PNGMAJ) 'BEGIN{printf("PNG16_%s {global:\n",PNGMAJ)}\
{ for (i=1;i+2<=NF;++i)\
if ($$(i)=="PNG_FUNCTION_EXPORT" && $$(i+2)=="END")\
@@ -220,14 +223,14 @@
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) -I$(ZLIBINC) \
+ $(CC) -I$(DI) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(DL) -L$(ZLIBLIB) -Wl, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
./pngtestd pngtest.png
test-installed:
- $(CC) -I$(ZLIBINC) \
+ $(CC) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
@@ -244,20 +247,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.freebsd b/scripts/makefile.freebsd
index 0ddf4ae..03a15df 100644
--- a/scripts/makefile.freebsd
+++ b/scripts/makefile.freebsd
@@ -1,4 +1,5 @@
# makefile for libpng under FreeBSD
+# Copyright (C) 2014 Glenn Randers-Pehrson and Andrey A. Chernov
# Copyright (C) 2002, 2007, 2009 Glenn Randers-Pehrson and Andrey A. Chernov
#
# This code is released under the libpng license.
@@ -17,7 +18,7 @@
# where make install puts libpng.a and png.h
DESTDIR= ${PREFIX}
LIBDIR= /lib
-INCS= png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+INCS= png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
INCSDIR= /include/libpng
INCDIR= ${INCSDIR} # for 4.x bsd.lib.mk
MAN= libpng.3 libpngpf.3 png.5
@@ -30,17 +31,21 @@
ZLIBLIB= /usr/lib
ZLIBINC= /usr/include
-LDADD+= -lm -lz
-#LDADD+= -lm -lz -lssp_nonshared # for OSVERSION < 800000 ?
+LDADD+= -lm -lz
+#LDADD+= -lm -lz -lssp_nonshared # for OSVERSION < 800000 ?
-DPADD+= ${LIBM} ${LIBZ}
+DPADD+= ${LIBM} ${LIBZ}
-CFLAGS+= -I. -I${ZLIBINC}
+CPPFLAGS+= -I. -I${ZLIBINC}
+CFLAGS+= -W -Wall
SRCS= png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
pngwtran.c pngmem.c pngerror.c pngpread.c
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
pngtest: pngtest.o libpng.a
${CC} ${CFLAGS} -L. -static -o pngtest pngtest.o -L${ZLIBLIB} \
-lpng ${LDADD}
diff --git a/scripts/makefile.gcc b/scripts/makefile.gcc
index 78faa63..a592294 100644
--- a/scripts/makefile.gcc
+++ b/scripts/makefile.gcc
@@ -1,5 +1,5 @@
# makefile for libpng using gcc (generic, static library)
-# Copyright (C) 2008 Glenn Randers-Pehrson
+# Copyright (C) 2008, 2014 Glenn Randers-Pehrson
# Copyright (C) 2000 Cosmin Truta
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
#
@@ -18,25 +18,21 @@
RANLIB = ranlib
RM_F = rm -f
-CDEBUG = -g -DPNG_DEBUG=5
-LDDEBUG =
-CRELEASE = -O2
-LDRELEASE = -s
-#CFLAGS = -W -Wall $(CDEBUG)
-CFLAGS = -W -Wall $(CRELEASE)
-#LDFLAGS = $(LDDEBUG)
-LDFLAGS = $(LDRELEASE)
+WARNMORE = -Wwrite-strings -Wpointer-arith -Wshadow \
+ -Wmissing-declarations -Wtraditional -Wcast-align \
+ -Wstrict-prototypes -Wmissing-prototypes # -Wconversion
+CPPFLAGS = -I$(ZLIBINC) # -DPNG_DEBUG=5
+CFLAGS = -W -Wall -O2 # $(WARNMORE) -g
+LDFLAGS =
LIBS = -lz -lm
# File extensions
-O=.o
-A=.a
-EXE=
+EXEEXT =
# Variables
-OBJS = png$(O) pngerror$(O) pngget$(O) pngmem$(O) pngpread$(O) \
- pngread$(O) pngrio$(O) pngrtran$(O) pngrutil$(O) pngset$(O) \
- pngtrans$(O) pngwio$(O) pngwrite$(O) pngwtran$(O) pngwutil$(O)
+OBJS = png.o pngerror.o pngget.o pngmem.o pngpread.o \
+ pngread.o pngrio.o pngrtran.o pngrutil.o pngset.o \
+ pngtrans.o pngwio.o pngwrite.o pngwtran.o pngwutil.o
# Targets
all: static
@@ -45,43 +41,43 @@
pnglibconf.h: scripts/pnglibconf.h.prebuilt
cp scripts/pnglibconf.h.prebuilt $@
-.c$(O):
- $(CC) -c $(CFLAGS) -I$(ZLIBINC) $<
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
-static: libpng$(A) pngtest$(EXE)
+static: libpng.a pngtest$(EXEEXT)
shared:
@echo This is a generic makefile that cannot create shared libraries.
@echo Please use a configuration that is specific to your platform.
@false
-libpng$(A): $(OBJS)
+libpng.a: $(OBJS)
$(AR_RC) $@ $(OBJS)
$(RANLIB) $@
-test: pngtest$(EXE)
- ./pngtest$(EXE)
+test: pngtest$(EXEEXT)
+ ./pngtest$(EXEEXT)
-pngtest$(EXE): pngtest$(O) libpng$(A)
- $(LD) $(LDFLAGS) -L$(ZLIBLIB) -o $@ pngtest$(O) libpng$(A) $(LIBS)
+pngtest$(EXEEXT): pngtest.o libpng.a
+ $(LD) $(LDFLAGS) -L$(ZLIBLIB) -o $@ pngtest.o libpng.a $(LIBS)
clean:
- $(RM_F) *$(O) libpng$(A) pngtest$(EXE) pngout.png pnglibconf.h
+ $(RM_F) *.o libpng.a pngtest$(EXEEXT) pngout.png pnglibconf.h
-png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtest$(O): png.h pngconf.h pnglibconf.h
+pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.hp64 b/scripts/makefile.hp64
index bf51962..6c15a0b 100644
--- a/scripts/makefile.hp64
+++ b/scripts/makefile.hp64
@@ -1,5 +1,5 @@
# makefile for libpng, HPUX (10.20 and 11.00) using the ANSI/C product.
-# Copyright (C) 1999-2002, 2006, 2009, 2010-2011 Glenn Randers-Pehrson
+# Copyright (C) 1999-2002, 2006, 2009, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42
# contributed by Jim Rice and updated by Chris Schleicher, Hewlett Packard
#
@@ -36,11 +36,11 @@
RANLIB=ranlib
RM_F=/bin/rm -f
-CFLAGS=-I$(ZLIBINC) -O -Ae -Wl,+vnocompatwarnings +DD64 \
--D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 +Z -DHAVE_UNISTD_H -DUSE_MMAP
+CPPFLAGS=-I$(ZLIBINC) \
+ -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DHAVE_UNISTD_H -DUSE_MMAP
+CFLAGS=-O -Ae -Wl,+vnocompatwarnings +DD64 +Z
# Caution: be sure you have built zlib with the same CFLAGS.
-CCFLAGS=-I$(ZLIBINC) -O -Ae -Wl,+vnocompatwarnings +DD64 \
--D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 +Z -DHAVE_UNISTD_H -DUSE_MMAP
+CCFLAGS=-O -Ae -Wl,+vnocompatwarnings +DD64 +Z
LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
@@ -75,8 +75,11 @@
.SUFFIXES: .c .o .pic.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
.c.pic.o:
- $(CC) -c $(CFLAGS) +z -o $@ $*.c
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) +z -o $@ $*.c
all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
@@ -179,7 +182,7 @@
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) -I$(ZLIBINC) $(CCFLAGS) \
+ $(CC) -I$(DI) $(CPPFLAGS) $(CCFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(DL) -L$(ZLIBLIB) \
-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
@@ -188,7 +191,7 @@
test-installed:
echo
echo Testing installed dynamic shared library.
- $(CC) $(CCFLAGS) \
+ $(CC) $(CPPFLAGS) $(CCFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(ZLIBLIB) \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
@@ -205,20 +208,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.hpgcc b/scripts/makefile.hpgcc
index bf44d22..67d8f42 100644
--- a/scripts/makefile.hpgcc
+++ b/scripts/makefile.hpgcc
@@ -1,5 +1,5 @@
# makefile for libpng on HP-UX using GCC with the HP ANSI/C linker.
-# Copyright (C) 2002, 2006-2008, 2010-2011 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2006-2008, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 2001, Laurent faillie
# Copyright (C) 1998, 1999 Greg Roelofs
# Copyright (C) 1996, 1997 Andreas Dilger
@@ -53,8 +53,8 @@
# for pgcc version 2.95.1, -O3 is buggy; don't use it.
-CFLAGS=-I$(ZLIBINC) -W -Wall -O3 -funroll-loops -DPNG_NO_MMX_CODE \
- $(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5
+CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
+CFLAGS=-W -Wall -O3 -funroll-loops $(ALIGN) # $(WARNMORE) -g
#LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng16 -lz -lm
LDFLAGS=-L. -L$(ZLIBLIB) -lpng16 -lz -lm
@@ -86,8 +86,11 @@
.SUFFIXES: .c .o .pic.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
.c.pic.o:
- $(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -fPIC -o $@ $*.c
all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
@@ -185,7 +188,7 @@
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) -I$(ZLIBINC) \
+ $(CC) -I$(DI) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(DL) -L$(ZLIBLIB) -Wl,-rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
@@ -194,7 +197,7 @@
test-installed:
echo
echo Testing installed dynamic shared library.
- $(CC) -I$(ZLIBINC) \
+ $(CC) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
@@ -211,20 +214,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.hpux b/scripts/makefile.hpux
index 1c2970b..bef2e23 100644
--- a/scripts/makefile.hpux
+++ b/scripts/makefile.hpux
@@ -1,5 +1,5 @@
# makefile for libpng, HPUX (10.20 and 11.00) using the ANSI/C product.
-# Copyright (C) 1999-2002, 2006, 2010-2011 Glenn Randers-Pehrson
+# Copyright (C) 1999-2002, 2006, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42
# contributed by Jim Rice and updated by Chris Schleicher, Hewlett Packard
#
@@ -14,7 +14,8 @@
# Note that if you plan to build a libpng shared library, zlib must also
# be a shared library, which zlib's configure does not do. After running
# zlib's configure, edit the appropriate lines of makefile to read:
-# CFLAGS=-O1 -DHAVE_UNISTD -DUSE_MAP -fPIC \
+# CPPFLAGS=-DHAVE_UNISTD -DUSE_MAP
+# CFLAGS=-O1 -fPIC
# LDSHARED=ld -b
# SHAREDLIB=libz.sl
@@ -44,9 +45,10 @@
MANPATH=$(prefix)/man
BINPATH=$(exec_prefix)/bin
-CFLAGS=-I$(ZLIBINC) -O -Ae +DA1.1 +DS2.0
+CPPFLAGS=-I$(ZLIBINC)
+CFLAGS=-O -Ae +DA1.1 +DS2.0
# Caution: be sure you have built zlib with the same CFLAGS.
-CCFLAGS=-I$(ZLIBINC) -O -Ae +DA1.1 +DS2.0
+CCFLAGS=-O -Ae +DA1.1 +DS2.0
LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
# override DESTDIR= on the make install command line to easily support
@@ -72,8 +74,11 @@
.SUFFIXES: .c .o .pic.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
.c.pic.o:
- $(CC) -c $(CFLAGS) +z -o $@ $*.c
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) +z -o $@ $*.c
all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
@@ -176,7 +181,7 @@
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) -I$(ZLIBINC) $(CCFLAGS) \
+ $(CC) -I$(DI) $(CPPFLAGS) $(CCFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(DL) -L$(ZLIBLIB) \
-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
@@ -185,7 +190,7 @@
test-installed:
echo
echo Testing installed dynamic shared library.
- $(CC) $(CCFLAGS) \
+ $(CC) $(CPPFLAGS) $(CCFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(ZLIBLIB) \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
@@ -202,20 +207,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.ibmc b/scripts/makefile.ibmc
index a19090d..861a551 100644
--- a/scripts/makefile.ibmc
+++ b/scripts/makefile.ibmc
@@ -1,6 +1,6 @@
# Makefile for libpng (static)
# IBM C version 3.x for Win32 and OS/2
-# Copyright (C) 2006 Glenn Randers-Pehrson
+# Copyright (C) 2006, 2014 Glenn Randers-Pehrson
# Copyright (C) 2000 Cosmin Truta
#
# This code is released under the libpng license.
@@ -23,7 +23,8 @@
AR = ilib
RM = del
-CFLAGS = -I$(ZLIBINC) -Mc -O2 -W3
+CPPFLAGS = -I$(ZLIBINC)
+CFLAGS = -Mc -O2 -W3
LDFLAGS =
# File extensions
@@ -39,6 +40,9 @@
LIBS = libpng$(A) $(ZLIBLIB)/zlib$(A)
# Targets
+.c$(O):
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
+
all: libpng$(A) pngtest$(E)
# see scripts/pnglibconf.mak for more options
@@ -63,20 +67,20 @@
$(RM) pngtest$(E)
$(RM) pngout.png
-png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest$(O): png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.intel b/scripts/makefile.intel
index 3a45014..1abfc6e 100644
--- a/scripts/makefile.intel
+++ b/scripts/makefile.intel
@@ -1,7 +1,7 @@
# Makefile for libpng
# Microsoft Visual C++ with Intel C/C++ Compiler 4.0 and later
-# Copyright (C) 2006 Glenn Randers-Pehrson
+# Copyright (C) 2006, 2014 Glenn Randers-Pehrson
# Copyright (C) 2000, Pawel Mrochen, based on makefile.msc which is
# copyright 1995 Guy Eric Schalnat, Group 42, Inc.
#
@@ -32,7 +32,8 @@
# --------------------------------------------------------------------------
CC=icl -c
-CFLAGS=-O2 -G$(CPU)$(CALLING) -Qip -Qunroll4 -I$(ZLIBINC) -nologo
+CPPFLAGS=-I$(ZLIBINC)
+CFLAGS=-O2 -G$(CPU)$(CALLING) -Qip -Qunroll4 -nologo
LD=link
LDFLAGS=/SUBSYSTEM:CONSOLE /NOLOGO
@@ -48,50 +49,50 @@
pnglibconf.h: scripts/pnglibconf.h.prebuilt
cp scripts/pnglibconf.h.prebuilt $@
-png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CFLAGS) $*.c $(ERRFILE)
+png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngset$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CFLAGS) $*.c $(ERRFILE)
+pngset$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngget$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CFLAGS) $*.c $(ERRFILE)
+pngget$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CFLAGS) $*.c $(ERRFILE)
+pngread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngpread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CFLAGS) $*.c $(ERRFILE)
+pngpread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngrtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CFLAGS) $*.c $(ERRFILE)
+pngrtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngrutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CFLAGS) $*.c $(ERRFILE)
+pngrutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngerror$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CFLAGS) $*.c $(ERRFILE)
+pngerror$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngmem$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CFLAGS) $*.c $(ERRFILE)
+pngmem$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngrio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CFLAGS) $*.c $(ERRFILE)
+pngrio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngwio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CFLAGS) $*.c $(ERRFILE)
+pngwio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngtrans$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CFLAGS) $*.c $(ERRFILE)
+pngtrans$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngwrite$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CFLAGS) $*.c $(ERRFILE)
+pngwrite$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngwtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CFLAGS) $*.c $(ERRFILE)
+pngwtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngwutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) $(CFLAGS) $*.c $(ERRFILE)
+pngwutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
libpng.lib: $(OBJS)
if exist libpng.lib del libpng.lib
@@ -101,7 +102,7 @@
$(LD) $(LDFLAGS) /OUT:pngtest.exe pngtest.obj libpng.lib $(ZLIBLIB)\zlib.lib
pngtest$(O): png.h pngconf.h pnglibconf.h
- $(CC) $(CFLAGS) $*.c $(ERRFILE)
+ $(CC) $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
test: pngtest.exe
pngtest.exe
diff --git a/scripts/makefile.knr b/scripts/makefile.knr
index e2d2d4e..7209215 100644
--- a/scripts/makefile.knr
+++ b/scripts/makefile.knr
@@ -1,5 +1,5 @@
# makefile for libpng
-# Copyright (C) 2002, 2006, 2009 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2006, 2009, 2014 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
#
# This code is released under the libpng license.
@@ -26,14 +26,15 @@
# you execute make install.
DESTDIR=
-CC=cc
-CFLAGS=-I../zlib -O
-LDFLAGS=-L. -L../zlib/ -lpng -lz -lm
+CC = cc
+CPPFLAGS = -I../zlib
+CFLAGS = -O
+LDFLAGS = -L. -L../zlib/ -lpng -lz -lm
# flags for ansi2knr
ANSI2KNRFLAGS=
-RANLIB=ranlib
-#RANLIB=echo
+RANLIB = ranlib
+#RANLIB = echo
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
@@ -48,12 +49,12 @@
# general rule to allow ansi2knr to work
.c.o:
./ansi2knr $*.c T$*.c
- $(CC) $(CFLAGS) -c T$*.c
+ $(CC) $(CPPFLAGS) $(CFLAGS) -c T$*.c
rm -f T$*.c $*.o
mv T$*.o $*.o
ansi2knr: ansi2knr.c
- $(CC) $(CFLAGS) $(ANSI2KNRFLAGS) -o ansi2knr ansi2knr.c
+ $(CC) $(CPPFLAGS) $(CFLAGS) $(ANSI2KNRFLAGS) -o ansi2knr ansi2knr.c
libpng.a: ansi2knr $(OBJS)
ar rc $@ $(OBJS)
@@ -90,20 +91,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.linux b/scripts/makefile.linux
index f9f3a4c..73a30c8 100644
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -1,5 +1,5 @@
# makefile for libpng.a and libpng16.so on Linux ELF with gcc
-# Copyright (C) 1998, 1999, 2002, 2006, 2008, 2010-2011 Greg Roelofs and
+# Copyright (C) 1998, 1999, 2002, 2006, 2008, 2010-2014 Greg Roelofs and
# Glenn Randers-Pehrson
# Copyright (C) 1996, 1997 Andreas Dilger
#
@@ -10,7 +10,7 @@
# Library name:
LIBNAME = libpng16
PNGMAJ = 16
-RELEASE = 3
+RELEASE = 10
# Shared library names:
LIBSO=$(LIBNAME).so
@@ -48,7 +48,8 @@
# for pgcc version 2.95.1, -O3 is buggy; don't use it.
-CFLAGS=-I$(ZLIBINC) -W -Wall -O3 -funroll-loops \
+CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
+CFLAGS= -W -Wall -O3 -funroll-loops \
$(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5
LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng16 -lz -lm
@@ -82,6 +83,9 @@
.SUFFIXES: .c .o .pic.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
.c.pic.o:
$(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
@@ -196,14 +200,14 @@
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) -I$(ZLIBINC) \
+ $(CC) -I$(DI) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(DL) -L$(ZLIBLIB) -Wl, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
./pngtestd pngtest.png
test-installed:
- $(CC) -I$(ZLIBINC) \
+ $(CC) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
@@ -220,20 +224,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.mips b/scripts/makefile.mips
index d6a5cc3..a0df001 100644
--- a/scripts/makefile.mips
+++ b/scripts/makefile.mips
@@ -1,5 +1,5 @@
# makefile for libpng
-# Copyright (C) Glenn Randers-Pehrson
+# Copyright (C) 1998-2014 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
#
# This code is released under the libpng license.
@@ -22,7 +22,8 @@
DESTDIR=
CC=cc
-CFLAGS=-I../zlib -O -systype sysv -DSYSV -w -Dmips
+CPPFLAGS=-I../zlib -DSYSV -Dmips
+CFLAGS=-O -systype sysv -w
#CFLAGS=-O
LDFLAGS=-L. -L../zlib/ -lpng -lz -lm
@@ -33,6 +34,9 @@
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
pngwtran.o pngmem.o pngerror.o pngpread.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
all: libpng.a pngtest
# see scripts/pnglibconf.mak for more options
@@ -75,20 +79,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.msc b/scripts/makefile.msc
index e3ad73e..905ed72 100644
--- a/scripts/makefile.msc
+++ b/scripts/makefile.msc
@@ -1,6 +1,6 @@
# makefile for libpng
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-# Copyright (C) 2006, 2009 Glenn Randers-Pehrson
+# Copyright (C) 2006, 2009, 2014 Glenn Randers-Pehrson
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
@@ -10,7 +10,8 @@
# -------- Microsoft C 5.1 and later, does not use assembler code --------
MODEL=L
-CFLAGS=-Oait -Gs -nologo -W3 -A$(MODEL) -I..\zlib
+CPPFLAGS=-I..\zlib
+CFLAGS=-Oait -Gs -nologo -W3 -A$(MODEL)
#-Ox generates bad code with MSC 5.1
CC=cl
LD=link
@@ -31,50 +32,50 @@
pnglibconf.h: scripts/pnglibconf.h.prebuilt
cp scripts/pnglibconf.h.prebuilt $@
-png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngset$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngset$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngget$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngget$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngpread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngpread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngrtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngrtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngrutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngrutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngerror$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngerror$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngmem$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngmem$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngrio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngrio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngwio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngwio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngtrans$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngtrans$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngwrite$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngwrite$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngwtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngwtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngwutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngwutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
libpng.lib: $(OBJS1) $(OBJS2) $(OBJS3)
del libpng.lib
@@ -83,7 +84,7 @@
lib libpng $(OBJS3);
pngtest$(O): png.h pngconf.h pnglibconf.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
pngtest.exe: pngtest.obj libpng.lib
$(LD) $(LDFLAGS) pngtest.obj,,,libpng.lib ..\zlib\zlib.lib ;
diff --git a/scripts/makefile.msys b/scripts/makefile.msys
index d5dda59..69fbb4d 100644
--- a/scripts/makefile.msys
+++ b/scripts/makefile.msys
@@ -2,7 +2,7 @@
# Copyright (C) 2012 Glenn Randers-Pehrson and Christopher M. Wheeler
#
# Portions taken from makefile.linux:
-# Copyright (C) 1998, 1999, 2002, 2006, 2008, 2010-2011 Greg Roelofs and
+# Copyright (C) 1998, 1999, 2002, 2006, 2008, 2010-2014 Greg Roelofs and
# Glenn Randers-Pehrson
# Copyright (C) 2000 Cosmin Truta
# Copyright (C) 1996, 1997 Andreas Dilger
@@ -18,7 +18,7 @@
# Library name:
LIBNAME = libpng16
PNGMAJ = 16
-RELEASE = 3
+RELEASE = 10
# Shared library names:
LIBSO=$(LIBNAME).dll
@@ -44,20 +44,13 @@
#ARCH = -march=pentium3
#ARCH = -march=i686
ARCH =
-CDEBUG = -g -DPNG_DEBUG=5
-LDDEBUG =
-CRELEASE = -O2
-LDRELEASE = -s
-#CFLAGS = -W -Wall $(CDEBUG)
-CFLAGS = -W -Wall $(CRELEASE) $(ARCH)
-#LDFLAGS = $(LDDEBUG)
-LDFLAGS = $(LDRELEASE)
+CPPFLAGS = # -DPNG_DEBUG=5
+CFLAGS = -W -Wall -O2 $(ARCH) # -g
+LDFLAGS =
LIBS = -lz -lm
# File extensions
-O=.o
-A=.a
-EXE=.exe
+EXEEXT=.exe
INCPATH=$(prefix)/include
LIBPATH=$(exec_prefix)/lib
@@ -81,9 +74,9 @@
DM=$(DESTDIR)$(MANPATH)
# Variables
-OBJS = png$(O) pngerror$(O) pngget$(O) pngmem$(O) pngpread$(O) \
- pngread$(O) pngrio$(O) pngrtran$(O) pngrutil$(O) pngset$(O) \
- pngtrans$(O) pngwio$(O) pngwrite$(O) pngwtran$(O) pngwutil$(O)
+OBJS = png.o pngerror.o pngget.o pngmem.o pngpread.o \
+ pngread.o pngrio.o pngrtran.o pngrutil.o pngset.o \
+ pngtrans.o pngwio.o pngwrite.o pngwtran.o pngwutil.o
# Targets
all: static shared
@@ -92,10 +85,10 @@
pnglibconf.h: scripts/pnglibconf.h.prebuilt
cp scripts/pnglibconf.h.prebuilt $@
-.c$(O):
- $(CC) -c $(CFLAGS) -I$(ZLIBINC) $<
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
-static: libpng$(A) pngtest$(EXE)
+static: libpng.a pngtest$(EXEEXT)
shared: $(LIBSOMAJ)
$(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSO)
@@ -106,7 +99,7 @@
$(LIBSOMAJ):
$(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSOMAJ)
-libpng$(A): $(OBJS)
+libpng.a: $(OBJS)
$(AR_RC) $@ $(OBJS)
$(RANLIB) $@
@@ -175,30 +168,30 @@
install: install-static install-shared install-man install-config
-test: pngtest$(EXE)
- ./pngtest$(EXE)
+test: pngtest$(EXEEXT)
+ ./pngtest$(EXEEXT)
-pngtest$(EXE): pngtest$(O) libpng$(A)
- $(LD) $(LDFLAGS) -L$(ZLIBLIB) -o $@ pngtest$(O) libpng$(A) $(LIBS)
+pngtest$(EXEEXT): pngtest.o libpng.a
+ $(LD) $(LDFLAGS) -L$(ZLIBLIB) -o $@ pngtest.o libpng.a $(LIBS)
clean:
- $(RM_F) *$(O) libpng$(A) pngtest$(EXE) pngout.png pnglibconf.h $(LIBSO) \
+ $(RM_F) *.o libpng.a pngtest$(EXEEXT) pngout.png pnglibconf.h $(LIBSO) \
$(LIBSOMAJ) libpng-config
-png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtest$(O): png.h pngconf.h pnglibconf.h
+pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.ne12bsd b/scripts/makefile.ne12bsd
index 9edc266..783e5d5 100644
--- a/scripts/makefile.ne12bsd
+++ b/scripts/makefile.ne12bsd
@@ -2,7 +2,7 @@
# make obj && make depend && make && make test
# make includes && make install
# Copyright (C) 2002 Patrick R.L. Welche
-# Copyright (C) 2007, 2009 Glenn Randers-Pehrson
+# Copyright (C) 2007, 2009, 2014 Glenn Randers-Pehrson
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
@@ -17,7 +17,7 @@
LIB= png16
SHLIB_MAJOR= 0
-SHLIB_MINOR= 1.6.3
+SHLIB_MINOR= 1.6.10
SRCS= png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
pngwtran.c pngmem.c pngerror.c pngpread.c
@@ -34,6 +34,9 @@
CLEANFILES+=pngtest.o pngtest pnglibconf.h
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
# see scripts/pnglibconf.mak for more options
pnglibconf.h: scripts/pnglibconf.h.prebuilt
cp scripts/pnglibconf.h.prebuilt $@
diff --git a/scripts/makefile.netbsd b/scripts/makefile.netbsd
index 9448c75..af4eb93 100644
--- a/scripts/makefile.netbsd
+++ b/scripts/makefile.netbsd
@@ -2,7 +2,7 @@
# make obj && make depend && make && make test
# make includes && make install
# Copyright (C) 2002 Patrick R.L. Welche
-# Copyright (C) 2007-2009 Glenn Randers-Pehrson
+# Copyright (C) 2007-2009, 2014 Glenn Randers-Pehrson
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
@@ -17,7 +17,7 @@
LIB= png
SHLIB_MAJOR= 16
-SHLIB_MINOR= 1.6.3
+SHLIB_MINOR= 1.6.10
SRCS= png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
pngwtran.c pngmem.c pngerror.c pngpread.c
@@ -34,6 +34,9 @@
CLEANFILES+=pngtest.o pngtest pnglibconf.h
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
# see scripts/pnglibconf.mak for more options
pnglibconf.h: scripts/pnglibconf.h.prebuilt
cp scripts/pnglibconf.h.prebuilt $@
diff --git a/scripts/makefile.openbsd b/scripts/makefile.openbsd
index 421a266..c61fa2e 100644
--- a/scripts/makefile.openbsd
+++ b/scripts/makefile.openbsd
@@ -1,6 +1,6 @@
# makefile for libpng
+# Copyright (C) 2007-2009, 2014 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
-# Copyright (C) 2007-2009 Glenn Randers-Pehrson
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
@@ -11,7 +11,7 @@
MANDIR= ${PREFIX}/man/cat
SHLIB_MAJOR= 16
-SHLIB_MINOR= 1.6.3
+SHLIB_MINOR= 1.6.10
LIB= png
SRCS= png.c pngerror.c pngget.c pngmem.c pngpread.c \
@@ -28,8 +28,11 @@
CLEANFILES+= pngtest.o pngtest pnglibconf.h
MAN= libpng.3 libpngpf.3 png.5
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO \
- libpng-manual.txt
+DOCS= ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO \
+ libpng-manual.txt
+
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
# see scripts/pnglibconf.mak for more options
pnglibconf.h: scripts/pnglibconf.h.prebuilt
diff --git a/scripts/makefile.sco b/scripts/makefile.sco
index c5f254f..a8de13f 100644
--- a/scripts/makefile.sco
+++ b/scripts/makefile.sco
@@ -1,7 +1,7 @@
# makefile for SCO OSr5 ELF and Unixware 7 with Native cc
# Contributed by Mike Hopkirk (hops@sco.com) modified from Makefile.lnx
# force ELF build dynamic linking, SONAME setting in lib and RPATH in app
-# Copyright (C) 2002, 2006, 2010-2011 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2006, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 1998 Greg Roelofs
# Copyright (C) 1996, 1997 Andreas Dilger
#
@@ -37,7 +37,8 @@
ZLIBLIB=../zlib
ZLIBINC=../zlib
-CFLAGS= -dy -belf -I$(ZLIBINC) -O3
+CPPFLAGS=-I$(ZLIBINC)
+CFLAGS= -dy -belf -O3
LDFLAGS=-L. -L$(ZLIBLIB) -lpng16 -lz -lm
INCPATH=$(prefix)/include
@@ -68,8 +69,11 @@
.SUFFIXES: .c .o .pic.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
.c.pic.o:
- $(CC) -c $(CFLAGS) -KPIC -o $@ $*.c
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -KPIC -o $@ $*.c
all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
@@ -175,14 +179,14 @@
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) $(CFLAGS) \
+ $(CC) -I$(DI) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(DL) -L$(ZLIBLIB) \
-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
./pngtestd pngtest.png
test-installed:
- $(CC) $(CFLAGS) \
+ $(CC) $(CPPFLAGS) $(CFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(ZLIBLIB) \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
@@ -199,20 +203,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.sggcc b/scripts/makefile.sggcc
index 7c427be..a2c203e 100644
--- a/scripts/makefile.sggcc
+++ b/scripts/makefile.sggcc
@@ -1,5 +1,5 @@
# makefile for libpng.a and libpng16.so, SGI IRIX with 'cc'
-# Copyright (C) 2001-2002, 2006, 2010-2011 Glenn Randers-Pehrson
+# Copyright (C) 2001-2002, 2006, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
#
# This code is released under the libpng license.
@@ -42,8 +42,9 @@
# See "man abi". zlib must be built with the same ABI.
ABI=
-WARNMORE= # -g -DPNG_DEBUG=5
-CFLAGS=$(ABI) -I$(ZLIBINC) -O $(WARNMORE) -fPIC -mabi=n32
+WARNMORE=
+CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
+CFLAGS=$(ABI) -O $(WARNMORE) -fPIC -mabi=n32 # -g
LDFLAGS=$(ABI) -L. -L$(ZLIBLIB) -lpng -lz -lm
LDSHARED=cc $(ABI) -shared -soname $(LIBSOMAJ) \
-set_version sgi$(PNGMAJ).0
@@ -74,6 +75,9 @@
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
pngwtran.o pngmem.o pngerror.o pngpread.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
all: libpng.a pngtest shared libpng.pc libpng-config
# see scripts/pnglibconf.mak for more options
@@ -182,7 +186,7 @@
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) -I$(ZLIBINC) \
+ $(CC) -I$(DI) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(DL) -L$(ZLIBLIB) \
-rpath $(ZLIBLIB):$(DL) \
@@ -192,7 +196,7 @@
test-installed:
echo
echo Testing installed dynamic shared library.
- $(CC) -I$(ZLIBINC) \
+ $(CC) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(ZLIBLIB) \
-rpath $(ZLIBLIB):`$(BINPATH)/$(LIBNAME)-config --libdir` \
@@ -209,20 +213,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.sgi b/scripts/makefile.sgi
index f40461e..96c61b0 100644
--- a/scripts/makefile.sgi
+++ b/scripts/makefile.sgi
@@ -1,5 +1,5 @@
# makefile for libpng.a and libpng16.so, SGI IRIX with 'cc'
-# Copyright (C) 2001-2002, 2006, 2007, 2010-2011 Glenn Randers-Pehrson
+# Copyright (C) 2001-2002, 2006, 2007, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
#
# This code is released under the libpng license.
@@ -44,8 +44,9 @@
WARNMORE=-fullwarn
# Note: -KPIC is the default anyhow
-#CFLAGS= $(ABI) -I$(ZLIBINC) -O $(WARNMORE) -KPIC # -g -DPNG_DEBUG=5
-CFLAGS=$(ABI) -I$(ZLIBINC) -O $(WARNMORE)
+CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
+#CFLAGS= $(ABI) -O $(WARNMORE) -KPIC # -g
+CFLAGS=$(ABI) -O $(WARNMORE)
LDFLAGS_A=$(ABI) -L. -L$(ZLIBLIB) -lpng16 -lz -lm
LDFLAGS=$(ABI) -L. -L$(ZLIBLIB) -lpng -lz -lm
LDSHARED=cc $(ABI) -shared -soname $(LIBSOMAJ) \
@@ -77,6 +78,9 @@
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
pngwtran.o pngmem.o pngerror.o pngpread.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
all: libpng.a pngtest shared libpng.pc libpng-config
# see scripts/pnglibconf.mak for more options
@@ -182,7 +186,7 @@
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) -I$(ZLIBINC) \
+ $(CC) -I$(DI) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(DL) -L$(ZLIBLIB) \
-rpath $(ZLIBLIB):$(DL) \
@@ -192,7 +196,7 @@
test-installed:
echo
echo Testing installed dynamic shared library.
- $(CC) -I$(ZLIBINC) \
+ $(CC) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(ZLIBLIB) \
-rpath $(ZLIBLIB):`$(BINPATH)/$(LIBNAME)-config --libdir` \
@@ -210,20 +214,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.so9 b/scripts/makefile.so9
index a7773d1..67821f8 100644
--- a/scripts/makefile.so9
+++ b/scripts/makefile.so9
@@ -1,7 +1,7 @@
# makefile for libpng on Solaris 9 (beta) with Forte cc
# Updated by Chad Schrock for Solaris 9
# Contributed by William L. Sebok, based on makefile.linux
-# Copyright (C) 2002, 2006, 2008, 2010-2011 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2006, 2008, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 1998-2001 Greg Roelofs
# Copyright (C) 1996-1997 Andreas Dilger
#
@@ -46,8 +46,9 @@
#WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
-Wmissing-declarations -Wtraditional -Wcast-align \
-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
-#CFLAGS=-I$(ZLIBINC) -W -Wall -O3 $(WARNMORE) -g -DPNG_DEBUG=5 -DPNG_NO_MMX_CODE
-CFLAGS=-I$(ZLIBINC) -O3 -DPNG_NO_MMX_CODE
+CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
+#CFLAGS=-W -Wall -O3 $(WARNMORE) -g
+CFLAGS=-O3
LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng16 -lz -lm
INCPATH=$(prefix)/include
@@ -78,8 +79,11 @@
.SUFFIXES: .c .o .pic.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
.c.pic.o:
- $(CC) -c $(CFLAGS) -KPIC -o $@ $*.c
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -KPIC -o $@ $*.c
all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
@@ -194,7 +198,7 @@
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) -I$(ZLIBINC) \
+ $(CC) -I$(DI) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags` \
-L$(DL) -L$(ZLIBLIB) -R$(ZLIBLIB) -R$(DL)
@@ -203,7 +207,7 @@
test-installed:
echo
echo Testing installed dynamic shared library.
- $(CC) -I$(ZLIBINC) \
+ $(CC) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags` \
-L$(ZLIBLIB) -R$(ZLIBLIB)
@@ -220,20 +224,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.solaris b/scripts/makefile.solaris
index be423a1..8132199 100644
--- a/scripts/makefile.solaris
+++ b/scripts/makefile.solaris
@@ -1,5 +1,5 @@
# makefile for libpng on Solaris 2.x with gcc
-# Copyright (C) 2004, 2006-2008, 2010-2011 Glenn Randers-Pehrson
+# Copyright (C) 2004, 2006-2008, 2010-2014 Glenn Randers-Pehrson
# Contributed by William L. Sebok, based on makefile.linux
# Copyright (C) 1998 Greg Roelofs
# Copyright (C) 1996, 1997 Andreas Dilger
@@ -42,7 +42,8 @@
WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
-Wmissing-declarations -Wtraditional -Wcast-align \
-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
-CFLAGS=-I$(ZLIBINC) -W -Wall -O \
+CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
+CFLAGS= -W -Wall -O \
# $(WARNMORE) -g -DPNG_DEBUG=5
LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng16 -lz -lm
@@ -74,8 +75,11 @@
.SUFFIXES: .c .o .pic.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
.c.pic.o:
- $(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -fPIC -o $@ $*.c
all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
@@ -191,7 +195,7 @@
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) -I$(ZLIBINC) \
+ $(CC) -I$(DI) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags` \
-L$(DL) -L$(ZLIBLIB) -R$(ZLIBLIB) -R$(DL)
@@ -200,7 +204,7 @@
test-installed:
echo
echo Testing installed dynamic shared library.
- $(CC) -I$(ZLIBINC) \
+ $(CC) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags` \
-L$(ZLIBLIB) -R$(ZLIBLIB)
@@ -217,20 +221,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.solaris-x86 b/scripts/makefile.solaris-x86
index d41e659..8d24148 100644
--- a/scripts/makefile.solaris-x86
+++ b/scripts/makefile.solaris-x86
@@ -1,5 +1,5 @@
# makefile for libpng on Solaris 2.x with gcc
-# Copyright (C) 2004, 2006-2008, 2010-2011 Glenn Randers-Pehrson
+# Copyright (C) 2004, 2006-2008, 2010-2014 Glenn Randers-Pehrson
# Contributed by William L. Sebok, based on makefile.linux
# Copyright (C) 1998 Greg Roelofs
# Copyright (C) 1996, 1997 Andreas Dilger
@@ -42,8 +42,8 @@
WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
-Wmissing-declarations -Wtraditional -Wcast-align \
-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
-CFLAGS=-I$(ZLIBINC) -W -Wall -O \
- # $(WARNMORE) -g -DPNG_DEBUG=5
+CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
+CFLAGS=-W -Wall -O # $(WARNMORE) -g
LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng16 -lz -lm
INCPATH=$(prefix)/include
@@ -74,6 +74,9 @@
.SUFFIXES: .c .o .pic.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
.c.pic.o:
$(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
@@ -191,7 +194,7 @@
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
- $(CC) -I$(DI) -I$(ZLIBINC) \
+ $(CC) -I$(DI) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags` \
-L$(DL) -L$(ZLIBLIB) -R$(ZLIBLIB) -R$(DL)
@@ -200,7 +203,7 @@
test-installed:
echo
echo Testing installed dynamic shared library.
- $(CC) -I$(ZLIBINC) \
+ $(CC) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags` \
-L$(ZLIBLIB) -R$(ZLIBLIB)
@@ -217,20 +220,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.std b/scripts/makefile.std
index 419eeed..30a21e2 100644
--- a/scripts/makefile.std
+++ b/scripts/makefile.std
@@ -1,5 +1,5 @@
# makefile for libpng
-# Copyright (C) 2002, 2006 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2006, 2014 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
#
# This code is released under the libpng license.
@@ -27,12 +27,12 @@
ZLIBLIB=../zlib
ZLIBINC=../zlib
-CC=cc
-AR_RC=ar rc
-MKDIR_P=mkdir
-LN_SF=ln -sf
-RANLIB=ranlib
-RM_F=rm -f
+CC = cc
+AR_RC = ar rc
+MKDIR_P = mkdir
+LN_SF = ln -sf
+RANLIB = ranlib
+RM_F = rm -f
AWK = awk
SED = sed
CPP = $(CC) -E
@@ -40,13 +40,17 @@
DFNFLAGS = # DFNFLAGS contains -D options to use in the libpng build
DFA_EXTRA = # extra files that can be used to control configuration
-CFLAGS=-I$(ZLIBINC) -O # -g -DPNG_DEBUG=5
-LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
+CPPFLAGS = -I$(ZLIBINC) # -DPNG_DEBUG=5
+CFLAGS = -O # -g
+LDFLAGS = -L. -L$(ZLIBLIB) -lpng -lz -lm
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
pngwtran.o pngmem.o pngerror.o pngpread.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
all: libpng.a pngtest
# The standard pnglibconf.h exists as scripts/pnglibconf.h.prebuilt,
@@ -105,20 +109,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.sunos b/scripts/makefile.sunos
index c1d0165..bc5f926 100644
--- a/scripts/makefile.sunos
+++ b/scripts/makefile.sunos
@@ -1,5 +1,5 @@
# makefile for libpng
-# Copyright (C) 2002, 2006 Glenn Randers-Pehrson
+# Copyright (C) 2002, 2006, 2014 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
#
# This code is released under the libpng license.
@@ -39,13 +39,17 @@
RANLIB=ranlib
RM_F=/bin/rm -f
-CFLAGS=-I$(ZLIBINC) -O # $(WARNMORE) -DPNG_DEBUG=5
+CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
+CFLAGS=-O # $(WARNMORE)
LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
pngwtran.o pngmem.o pngerror.o pngpread.o
+.c.o:
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
all: libpng.a pngtest
# see scripts/pnglibconf.mak for more options
@@ -88,20 +92,20 @@
# DO NOT DELETE THIS LINE -- make depend depends on it.
-png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
-pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h
diff --git a/scripts/makefile.tc3 b/scripts/makefile.tc3
index a046bf6..62279b7 100644
--- a/scripts/makefile.tc3
+++ b/scripts/makefile.tc3
@@ -3,11 +3,11 @@
# To use, do "make -fmakefile.tc3"
-# ----- Turbo C 3.00 (can be modified to work with earlier versions) -----
+# ----- Turbo C++ 3.0 -----
MODEL=l
-CFLAGS=-O2 -Z -m$(MODEL) -I..\zlib
-#CFLAGS=-D_NO_PROTO -O2 -Z -m$(MODEL) -I..\zlib # Turbo C older than 3.00
+CPPFLAGS=-I..\zlib
+CFLAGS=-O2 -Z -m$(MODEL)
CC=tcc
LD=tcc
LIB=tlib
@@ -34,53 +34,53 @@
test: pngtest$(E)
pngtest$(E)
-png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c
+png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c
-pngset$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c
+pngset$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c
-pngget$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c
+pngget$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c
-pngread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c
+pngread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c
-pngpread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c
+pngpread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c
-pngrtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c
+pngrtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c
-pngrutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c
+pngrutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c
-pngerror$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c
+pngerror$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c
-pngmem$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c
+pngmem$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c
-pngrio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c
+pngrio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c
-pngwio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c
+pngwio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c
pngtest$(O): png.h pngconf.h pnglibconf.h
- $(CC) -c $(CFLAGS) $*.c
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c
-pngtrans$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c
+pngtrans$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c
-pngwrite$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c
+pngwrite$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c
-pngwtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c
+pngwtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c
-pngwutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c
+pngwutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c
libpng$(MODEL).lib: $(OBJS1) $(OBJS2) $(OBJS3)
$(LIB) libpng$(MODEL) +$(OBJSL1)
diff --git a/scripts/makefile.vcwin32 b/scripts/makefile.vcwin32
index 3ca7a01..b26c4ac 100644
--- a/scripts/makefile.vcwin32
+++ b/scripts/makefile.vcwin32
@@ -1,6 +1,6 @@
# makefile for libpng
# Copyright (C) 1998 Tim Wegner
-# Copyright (C) 2006,2009,2011 Glenn Randers-Pehrson
+# Copyright (C) 2006,2009,2011,2014 Glenn Randers-Pehrson
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
@@ -15,7 +15,8 @@
CC = cl
LD = link
AR = lib
-CFLAGS = -nologo -D_CRT_SECURE_NO_DEPRECATE -MD -O2 -W3 -I..\zlib
+CPPFLAGS = -I..\zlib
+CFLAGS = -nologo -D_CRT_SECURE_NO_DEPRECATE -MD -O2 -W3
LDFLAGS = -nologo
ARFLAGS = -nologo
RM = del
@@ -39,57 +40,57 @@
pnglibconf.h: scripts\pnglibconf.h.prebuilt
copy scripts\pnglibconf.h.prebuilt $@
-png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+png$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngset$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngset$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngget$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngget$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngpread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngpread$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngrtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngrtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngrutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngrutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngerror$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngerror$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngmem$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngmem$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngrio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngrio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngwio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngwio$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngtrans$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngtrans$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngwrite$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngwrite$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngwtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngwtran$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
-pngwutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+pngwutil$(O): png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
libpng.lib: $(OBJS)
-$(RM) $@
$(AR) $(ARFLAGS) -out:$@ $(OBJS) $(ERRFILE)
pngtest$(O): png.h pngconf.h pnglibconf.h
- $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $*.c $(ERRFILE)
pngtest.exe: pngtest$(O) libpng.lib
$(LD) $(LDFLAGS) -out:$@ pngtest$(O) libpng.lib ..\zlib\zlib.lib $(ERRFILE)
diff --git a/scripts/makevms.com b/scripts/makevms.com
index 6928553..f6c3261 100644
--- a/scripts/makevms.com
+++ b/scripts/makevms.com
@@ -54,35 +54,35 @@
$ then
$ dele pngtest.obj;*
$ CALL MAKE png.OBJ "cc ''CCOPT' png" -
- png.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ png.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
$ CALL MAKE pngset.OBJ "cc ''CCOPT' pngset" -
- pngset.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ pngset.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
$ CALL MAKE pngget.OBJ "cc ''CCOPT' pngget" -
- pngget.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ pngget.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
$ CALL MAKE pngread.OBJ "cc ''CCOPT' pngread" -
- pngread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ pngread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
$ CALL MAKE pngpread.OBJ "cc ''CCOPT' pngpread" -
- pngpread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ pngpread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
$ CALL MAKE pngrtran.OBJ "cc ''CCOPT' pngrtran" -
- pngrtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ pngrtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
$ CALL MAKE pngrutil.OBJ "cc ''CCOPT' pngrutil" -
- pngrutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ pngrutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
$ CALL MAKE pngerror.OBJ "cc ''CCOPT' pngerror" -
- pngerror.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ pngerror.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
$ CALL MAKE pngmem.OBJ "cc ''CCOPT' pngmem" -
- pngmem.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ pngmem.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
$ CALL MAKE pngrio.OBJ "cc ''CCOPT' pngrio" -
- pngrio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ pngrio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
$ CALL MAKE pngwio.OBJ "cc ''CCOPT' pngwio" -
- pngwio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ pngwio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
$ CALL MAKE pngtrans.OBJ "cc ''CCOPT' pngtrans" -
- pngtrans.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ pngtrans.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
$ CALL MAKE pngwrite.OBJ "cc ''CCOPT' pngwrite" -
- pngwrite.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ pngwrite.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
$ CALL MAKE pngwtran.OBJ "cc ''CCOPT' pngwtran" -
- pngwtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ pngwtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
$ CALL MAKE pngwutil.OBJ "cc ''CCOPT' pngwutil" -
- pngwutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
+ pngwutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
$ write sys$output "Building Libpng ..."
$ CALL MAKE libpng.OLB "lib/crea libpng.olb *.obj" *.OBJ
$ write sys$output "Building pngtest..."
diff --git a/scripts/options.awk b/scripts/options.awk
index c3a8501..9aff15d 100755
--- a/scripts/options.awk
+++ b/scripts/options.awk
@@ -282,7 +282,7 @@
for (i=istart; i<=NF; ++i) {
val=$(i)
sub(/,$/,"",val)
- if (val == "on" || val == "off" || val == "disabled") {
+ if (val == "on" || val == "off" || val == "disabled" || val =="enabled") {
key = ""
if (onoff != val) {
# on or off can zap disabled or enabled:
@@ -687,9 +687,11 @@
}
# if
+ have_ifs = 0
nreqs = split(iffs[i], r)
print "#undef PNG_no_if" >out
if (nreqs > 0) {
+ have_ifs = 1
print "/* if" iffs[i], "*/" >out
print "#define PNG_no_if 1" >out
for (j=1; j<=nreqs; ++j) {
@@ -727,7 +729,10 @@
print "# ifndef PNG_" i "_SUPPORTED /*!command line*/" >out
print "# ifdef PNG_not_enabled /*!enabled*/" >out
- if (option[i] == "off" || option[i] == "disabled" && everything != "on" || option[i] == "enabled" && everything == "off") {
+ # 'have_ifs' here means that everything = "off" still allows an 'if' on
+ # an otherwise enabled option to turn it on; otherwise the 'if'
+ # handling is effectively disabled by 'everything = off'
+ if (option[i] == "off" || option[i] == "disabled" && everything != "on" || option[i] == "enabled" && everything == "off" && !have_ifs) {
print "# undef PNG_on /*default off*/" >out
} else {
print "# ifdef PNG_NO_" i >out
diff --git a/scripts/pnglibconf.dfa b/scripts/pnglibconf.dfa
index 4dea09c..4d4ea8a 100755
--- a/scripts/pnglibconf.dfa
+++ b/scripts/pnglibconf.dfa
@@ -164,7 +164,7 @@
# NONE
-# Note that PNG_USR_CONFIG only has an effect when building
+# Note that PNG_USER_CONFIG only has an effect when building
# pnglibconf.h
setting USER_CONFIG
@@ -294,12 +294,16 @@
option MNG_FEATURES
# Arithmetic options, the first is the big switch that chooses between internal
-# floating and fixed point arithmetic implementations - it does not affect any
+# floating and fixed point arithmetic implementations - it does not affect an
# APIs. The second two (the _POINT settings) switch off individual APIs.
+#
+# Prior to libpng 1.6.8 one of the API (_POINT) variants had to be selected. At
+# 1.6.8 this restriction has been removed; the simplified API can be used
+# without enabling any of the low level fixed/floating APIs.
option FLOATING_ARITHMETIC
-option FLOATING_POINT enables ok_math
-option FIXED_POINT enables ok_math
+option FLOATING_POINT
+option FIXED_POINT
# The following is always on (defined empty)
@@ -435,7 +439,7 @@
# If you handle gamma issues outside libpng then you do not need the libpng
# gamma processing; and it is an enormous waste of space. You just need to
# remove the use of libpng APIs that depend on it.
-option READ_GAMMA requires READ_TRANSFORMS, READ_gAMA
+option READ_GAMMA requires READ_TRANSFORMS, READ_gAMA, READ_sRGB
option READ_ALPHA_MODE requires READ_TRANSFORMS, READ_GAMMA
option READ_BACKGROUND requires READ_TRANSFORMS, READ_STRIP_ALPHA, READ_GAMMA
@@ -448,7 +452,7 @@
option READ_INVERT requires READ_TRANSFORMS
option READ_PACK requires READ_TRANSFORMS
option READ_PACKSWAP requires READ_TRANSFORMS
-option READ_RGB_TO_GRAY requires READ_TRANSFORMS, READ_GAMMA
+option READ_RGB_TO_GRAY requires READ_TRANSFORMS, READ_GAMMA enables COLORSPACE
option READ_SCALE_16_TO_8 requires READ_TRANSFORMS
option READ_SHIFT requires READ_TRANSFORMS
option READ_STRIP_16_TO_8 requires READ_TRANSFORMS
@@ -476,6 +480,7 @@
= INCH_CONVERSIONS INCH_CONVERSIONS
# API to build a grayscale palette
+# NOTE: this is not used internally by libpng at present.
option BUILD_GRAYSCALE_PALETTE
@@ -573,8 +578,9 @@
option COLORSPACE enables GAMMA disabled
# When an ICC profile is read, or png_set, it will be checked for a match
-# against known sRGB profiles if the sRGB handling is enabled. This
-# setting controls how much work is done during the check:
+# against known sRGB profiles if the sRGB handling is enabled. The
+# PNG_sRGB_PROFILE_CHECKS setting controls how much work is done during the
+# check:
#
# 0: Just validate the profile MD5 signature if present, otherwise use
# the checks in option 1.
@@ -753,6 +759,13 @@
# chunks, the callback can either handle the chunk entirely itself or request
# that libpng store the chunk for later retrieval via png_get_unknown_chunks.
#
+# NOTE: If STORE_UNKNOWN_CHUNKS is not enabled (which is the default if
+# both SAVE_UNKNOWN_CHUNKS and WRITE_UNKNOWN_CHUNKS are disabled) then a
+# 0 result from the callback will be ignored because no support for saving
+# unknown chunks has been compiled in. The normal symptom is that your app
+# fails to compile because png_get_unknown_chunks is no longer defined in png.h.
+# If you encounter this issue simply enable STORE_UNKNOWN_CHUNKS in your build.
+#
# Note that there is no 'WRITE_USER_CHUNKS' so the USER_CHUNKS option is always
# the same as READ_USER_CHUNKS at present
option READ_USER_CHUNKS requires READ, UNKNOWN_CHUNKS
@@ -798,13 +811,13 @@
option WRITE_OPTIMIZE_CMF requires WRITE
option READ_COMPRESSED_TEXT disabled
-option READ_iCCP enables READ_COMPRESSED_TEXT
option READ_iTXt enables READ_COMPRESSED_TEXT
option READ_zTXt enables READ_COMPRESSED_TEXT
option READ_COMPRESSED_TEXT enables READ_TEXT
option WRITE_oFFs enables SAVE_INT_32
option WRITE_pCAL enables SAVE_INT_32
+option WRITE_cHRM enables SAVE_INT_32
option WRITE_COMPRESSED_TEXT disabled
option WRITE_iCCP enables WRITE_COMPRESSED_TEXT
@@ -832,30 +845,44 @@
option WRITE_GET_PALETTE_MAX requires WRITE_CHECK_FOR_INVALID_INDEX disabled
# Simplified API options (added at libpng-1.6.0)
+# In libpng 1.6.8 the handling of these options was changed to used 'requires'
+# throughout, so that disabling some of the low level support always disables
+# the base simplified read/write API. This much simplifies the handling and
+# makes 'everything = off' work in a more intuitive way. It eliminates a
+# previously reported feature that APIs previously enabled by the simplified
+# API couldn't be turned off without explicitly turning off the simplified
+# APIs.
+#
# Read:
option SIMPLIFIED_READ,
- requires SEQUENTIAL_READ READ_TRANSFORMS, SETJMP, BENIGN_ERRORS READ_GAMMA,
- enables READ_EXPAND, READ_16BIT READ_EXPAND_16, READ_SCALE_16_TO_8,
- READ_RGB_TO_GRAY, READ_ALPHA_MODE READ_BACKGROUND READ_STRIP_ALPHA,
- READ_FILLER, READ_SWAP
+ requires SEQUENTIAL_READ, READ_TRANSFORMS, SETJMP, BENIGN_ERRORS,
+ READ_EXPAND, READ_16BIT, READ_EXPAND_16, READ_SCALE_16_TO_8,
+ READ_RGB_TO_GRAY, READ_ALPHA_MODE, READ_BACKGROUND, READ_STRIP_ALPHA,
+ READ_FILLER, READ_SWAP, READ_PACK, READ_GRAY_TO_RGB, READ_GAMMA,
+ READ_tRNS, READ_bKGD, READ_gAMA, READ_cHRM, READ_sRGB, READ_sBIT
-option SIMPLIFIED_READ_AFIRST requires SIMPLIFIED_READ disabled
-option READ_SWAP_ALPHA enables SIMPLIFIED_READ_AFIRST
+# AFIRST and BGR read options:
+# Prior to libpng 1.6.8 these were disabled but switched on if the low level
+# libpng routines that do the swaps were enabled. This worked but was
+# confusing. In libpng 1.6.8 the options were changed to simple 'requires'
+# and are enabled by default. This should work the same way in practice.
+option SIMPLIFIED_READ_AFIRST enables FORMAT_AFIRST,
+ requires SIMPLIFIED_READ READ_SWAP_ALPHA
-option SIMPLIFIED_READ_BGR requires SIMPLIFIED_READ disabled
-option READ_BGR enables SIMPLIFIED_READ_BGR
+option SIMPLIFIED_READ_BGR enables FORMAT_BGR,
+ requires SIMPLIFIED_READ READ_BGR
# Write:
option SIMPLIFIED_WRITE,
- requires WRITE STDIO, SETJMP,
- enables WRITE_SWAP WRITE_gAMA, WRITE_sRGB WRITE_cHRM
+ requires WRITE STDIO, SETJMP, WRITE_SWAP, WRITE_PACK,
+ WRITE_tRNS, WRITE_gAMA, WRITE_sRGB, WRITE_cHRM
-option SIMPLIFIED_WRITE_AFIRST requires SIMPLIFIED_WRITE disabled
-option WRITE_SWAP_ALPHA enables SIMPLIFIED_WRITE_AFIRST
+option SIMPLIFIED_WRITE_AFIRST enables FORMAT_AFIRST,
+ requires SIMPLIFIED_WRITE WRITE_SWAP_ALPHA
-option SIMPLIFIED_WRITE_BGR requires SIMPLIFIED_WRITE disabled
-option WRITE_BGR enables SIMPLIFIED_WRITE_BGR
+option SIMPLIFIED_WRITE_BGR enables FORMAT_BGR,
+ requires SIMPLIFIED_WRITE WRITE_BGR
# Formats:
-option FORMAT_AFIRST if SIMPLIFIED_READ_AFIRST, SIMPLIFIED_WRITE_AFIRST
-option FORMAT_BGR if SIMPLIFIED_READ_BGR, SIMPLIFIED_WRITE_BGR
+option FORMAT_AFIRST disabled
+option FORMAT_BGR disabled
diff --git a/scripts/pnglibconf.h.prebuilt b/scripts/pnglibconf.h.prebuilt
index f5971c8..9d4ef5a 100644
--- a/scripts/pnglibconf.h.prebuilt
+++ b/scripts/pnglibconf.h.prebuilt
@@ -1,8 +1,8 @@
-/* libpng 1.6.3 STANDARD API DEFINITION */
+/* libpng 1.6.10 STANDARD API DEFINITION */
/* pnglibconf.h - library build configuration */
-/* Libpng version 1.6.3 - July 18, 2013 */
+/* Libpng version 1.6.10 - March 6, 2014 */
/* Copyright (c) 1998-2013 Glenn Randers-Pehrson */
diff --git a/scripts/symbols.def b/scripts/symbols.def
index 17dd887..f509932 100644
--- a/scripts/symbols.def
+++ b/scripts/symbols.def
@@ -1,4 +1,4 @@
-;Version 1.6.3
+;Version 1.6.10
;--------------------------------------------------------------
; LIBPNG symbol list as a Win32 DEF file
; Contains all the symbols that can be exported from libpng
diff --git a/test-driver b/test-driver
index 53e19b8..d306056 100644
--- a/test-driver
+++ b/test-driver
@@ -1,9 +1,9 @@
#! /bin/sh
# test-driver - basic testsuite driver script.
-scriptversion=2012-06-27.10; # UTC
+scriptversion=2013-07-13.22; # UTC
-# Copyright (C) 2011-2012 Free Software Foundation, Inc.
+# Copyright (C) 2011-2013 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -44,13 +44,12 @@
Usage:
test-driver --test-name=NAME --log-file=PATH --trs-file=PATH
[--expect-failure={yes|no}] [--color-tests={yes|no}]
- [--enable-hard-errors={yes|no}] [--] TEST-SCRIPT
+ [--enable-hard-errors={yes|no}] [--]
+ TEST-SCRIPT [TEST-SCRIPT-ARGUMENTS]
The '--test-name', '--log-file' and '--trs-file' options are mandatory.
END
}
-# TODO: better error handling in option parsing (in particular, ensure
-# TODO: $log_file, $trs_file and $test_name are defined).
test_name= # Used for reporting.
log_file= # Where to save the output of the test script.
trs_file= # Where to save the metadata of the test run.
@@ -69,10 +68,23 @@
--enable-hard-errors) enable_hard_errors=$2; shift;;
--) shift; break;;
-*) usage_error "invalid option: '$1'";;
+ *) break;;
esac
shift
done
+missing_opts=
+test x"$test_name" = x && missing_opts="$missing_opts --test-name"
+test x"$log_file" = x && missing_opts="$missing_opts --log-file"
+test x"$trs_file" = x && missing_opts="$missing_opts --trs-file"
+if test x"$missing_opts" != x; then
+ usage_error "the following mandatory options are missing:$missing_opts"
+fi
+
+if test $# -eq 0; then
+ usage_error "missing argument"
+fi
+
if test $color_tests = yes; then
# Keep this in sync with 'lib/am/check.am:$(am__tty_colors)'.
red='[0;31m' # Red.
diff --git a/test-pngtest.sh b/test-pngtest.sh
old mode 100755
new mode 100644
diff --git a/tests/pngimage-full b/tests/pngimage-full
new file mode 100755
index 0000000..f5eb989
--- /dev/null
+++ b/tests/pngimage-full
@@ -0,0 +1,2 @@
+#!/bin/sh
+exec ./pngimage --exhaustive --log "${srcdir}/contrib/pngsuite/"*.png
diff --git a/tests/pngimage-quick b/tests/pngimage-quick
new file mode 100755
index 0000000..2d4b5db
--- /dev/null
+++ b/tests/pngimage-quick
@@ -0,0 +1,2 @@
+#!/bin/sh
+exec ./pngimage --log "${srcdir}/contrib/pngsuite/"*.png
diff --git a/tests/pngvalid-progressive-standard b/tests/pngvalid-progressive-standard
index 20ecd15..aa1b4b4 100755
--- a/tests/pngvalid-progressive-standard
+++ b/tests/pngvalid-progressive-standard
@@ -1,2 +1,2 @@
#!/bin/sh
-exec ./pngvalid --standard --interlace
+exec ./pngvalid --standard --progressive-read