| # CMakeLists.txt |
| |
| # Copyright (C) 2007,2009-2016 Glenn Randers-Pehrson |
| # Written by Christian Ehrlicher, 2007 |
| # Revised by Roger Lowman, 2009-2010 |
| # Revised by Clifford Yapp, 2011-2012 |
| # Revised by Roger Leigh, 2016 |
| # Revised by Andreas Franek, 2016 |
| |
| # This code is released under the libpng license. |
| # For conditions of distribution and use, see the disclaimer |
| # and license in png.h |
| |
| cmake_minimum_required(VERSION 2.8.3) |
| cmake_policy(VERSION 2.8.3) |
| |
| # Set MacOSX @rpath usage globally. |
| if (POLICY CMP0020) |
| cmake_policy(SET CMP0020 NEW) |
| endif(POLICY CMP0020) |
| if (POLICY CMP0042) |
| cmake_policy(SET CMP0042 NEW) |
| endif(POLICY CMP0042) |
| # Use new variable expansion policy. |
| if (POLICY CMP0053) |
| cmake_policy(SET CMP0053 NEW) |
| endif(POLICY CMP0053) |
| if (POLICY CMP0054) |
| cmake_policy(SET CMP0054 NEW) |
| endif(POLICY CMP0054) |
| |
| set(CMAKE_CONFIGURATION_TYPES "Release;Debug;MinSizeRel;RelWithDebInfo") |
| |
| project(libpng C) |
| enable_testing() |
| |
| set(PNGLIB_MAJOR 1) |
| set(PNGLIB_MINOR 6) |
| set(PNGLIB_RELEASE 28) |
| set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR}) |
| set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE}) |
| |
| include(GNUInstallDirs) |
| |
| # needed packages |
| |
| #Allow users to specify location of Zlib, |
| # Useful if zlib is being built alongside this as a sub-project |
| option(PNG_BUILD_ZLIB "Custom zlib Location, else find_package is used" OFF) |
| |
| IF(NOT PNG_BUILD_ZLIB) |
| find_package(ZLIB REQUIRED) |
| include_directories(${ZLIB_INCLUDE_DIR}) |
| ENDIF(NOT PNG_BUILD_ZLIB) |
| |
| if(NOT WIN32) |
| find_library(M_LIBRARY |
| NAMES m |
| PATHS /usr/lib /usr/local/lib |
| ) |
| if(NOT M_LIBRARY) |
| message(STATUS "math lib 'libm' not found; floating point support disabled") |
| endif() |
| else() |
| # not needed on windows |
| set(M_LIBRARY "") |
| endif() |
| |
| # COMMAND LINE OPTIONS |
| option(PNG_SHARED "Build shared lib" ON) |
| option(PNG_STATIC "Build static lib" ON) |
| option(PNG_TESTS "Build libpng tests" ON) |
| |
| # Many more configuration options could be added here |
| option(PNG_FRAMEWORK "Build OS X framework" OFF) |
| option(PNG_DEBUG "Build with debug output" OFF) |
| option(PNGARG "Disable ANSI-C prototypes" OFF) |
| |
| set(PNG_PREFIX "" CACHE STRING "Prefix to add to the API function names") |
| set(DFA_XTRA "" CACHE FILEPATH "File containing extra configuration settings") |
| |
| # set definitions and sources for arm |
| if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "^arm" OR |
| ${CMAKE_SYSTEM_PROCESSOR} MATCHES "^aarch64") |
| set(PNG_ARM_NEON_POSSIBLE_VALUES check on off) |
| set(PNG_ARM_NEON "check" CACHE STRING "Enable ARM NEON optimizations: |
| check: (default) use internal checking code; |
| off: disable the optimizations; |
| on: turn on unconditionally.") |
| set_property(CACHE PNG_ARM_NEON PROPERTY STRINGS |
| ${PNG_ARM_NEON_POSSIBLE_VALUES}) |
| list(FIND PNG_ARM_NEON_POSSIBLE_VALUES ${PNG_ARM_NEON} index) |
| if(index EQUAL -1) |
| message(FATAL_ERROR |
| " PNG_ARM_NEON must be one of [${PNG_ARM_NEON_POSSIBLE_VALUES}]") |
| elseif(NOT ${PNG_ARM_NEON} STREQUAL "no") |
| set(libpng_arm_sources |
| arm/arm_init.c |
| arm/filter_neon.S |
| arm/filter_neon_intrinsics.c) |
| |
| if(${PNG_ARM_NEON} STREQUAL "on") |
| add_definitions(-DPNG_ARM_NEON_OPT=2) |
| elseif(${PNG_ARM_NEON} STREQUAL "check") |
| add_definitions(-DPNG_ARM_NEON_CHECK_SUPPORTED) |
| endif() |
| else() |
| add_definitions(-DPNG_ARM_NEON_OPT=0) |
| endif() |
| endif() |
| |
| # SET LIBNAME |
| set(PNG_LIB_NAME png${PNGLIB_MAJOR}${PNGLIB_MINOR}) |
| |
| # to distinguish between debug and release lib |
| set(CMAKE_DEBUG_POSTFIX "d") |
| |
| include(CheckCSourceCompiles) |
| option(ld-version-script "Enable linker version script" ON) |
| if(ld-version-script AND NOT APPLE) |
| # Check if LD supports linker scripts. |
| file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map" "VERS_1 { |
| global: sym; |
| local: *; |
| }; |
| |
| VERS_2 { |
| global: sym2; |
| main; |
| } VERS_1; |
| ") |
| set(CMAKE_REQUIRED_FLAGS_SAVE ${CMAKE_REQUIRED_FLAGS}) |
| set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS} "-Wl,--version-script='${CMAKE_CURRENT_BINARY_DIR}/conftest.map'") |
| check_c_source_compiles("void sym(void) {} |
| void sym2(void) {} |
| int main(void) {return 0;} |
| " HAVE_LD_VERSION_SCRIPT) |
| if(NOT HAVE_LD_VERSION_SCRIPT) |
| set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS_SAVE} "-Wl,-M -Wl,${CMAKE_CURRENT_BINARY_DIR}/conftest.map") |
| check_c_source_compiles("void sym(void) {} |
| void sym2(void) {} |
| int main(void) {return 0;} |
| " HAVE_SOLARIS_LD_VERSION_SCRIPT) |
| endif() |
| set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS_SAVE}) |
| file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map") |
| endif() |
| |
| # Find symbol prefix. Likely obsolete and unnecessary with recent |
| # toolchains (it's not done in many other projects). |
| function(symbol_prefix) |
| set(SYMBOL_PREFIX) |
| |
| execute_process(COMMAND "${CMAKE_C_COMPILER}" "-E" "-" |
| INPUT_FILE /dev/null |
| OUTPUT_VARIABLE OUT |
| RESULT_VARIABLE STATUS) |
| |
| if(CPP_FAIL) |
| message(WARNING "Failed to run the C preprocessor") |
| endif() |
| |
| string(REPLACE "\n" ";" OUT "${OUT}") |
| foreach(line ${OUT}) |
| string(REGEX MATCH "^PREFIX=" found_match "${line}") |
| if(found_match) |
| STRING(REGEX REPLACE "^PREFIX=(.*\)" "\\1" prefix "${line}") |
| string(REGEX MATCH "__USER_LABEL_PREFIX__" found_match "${prefix}") |
| if(found_match) |
| STRING(REGEX REPLACE "(.*)__USER_LABEL_PREFIX__(.*)" "\\1\\2" prefix "${prefix}") |
| endif() |
| set(SYMBOL_PREFIX "${prefix}") |
| endif() |
| endforeach() |
| |
| message(STATUS "Symbol prefix: ${SYMBOL_PREFIX}") |
| set(SYMBOL_PREFIX "${SYMBOL_PREFIX}" PARENT_SCOPE) |
| endfunction() |
| |
| if(UNIX) |
| symbol_prefix() |
| endif() |
| |
| find_program(AWK NAMES gawk awk) |
| |
| include_directories(${CMAKE_CURRENT_BINARY_DIR}) |
| |
| if(NOT AWK) |
| # No awk available to generate sources; use pre-built pnglibconf.h |
| configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.h.prebuilt |
| ${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h) |
| add_custom_target(genfiles) # Dummy |
| else() |
| include(CMakeParseArguments) |
| # Generate .chk from .out with awk |
| # generate_chk(INPUT inputfile OUTPUT outputfile [DEPENDS dep1 [dep2...]]) |
| function(generate_chk) |
| set(options) |
| set(oneValueArgs INPUT OUTPUT) |
| set(multiValueArgs DEPENDS) |
| cmake_parse_arguments(_GC "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN}) |
| if (NOT _GC_INPUT) |
| message(FATAL_ERROR "Invalid arguments. generate_out requires input.") |
| endif() |
| if (NOT _GC_OUTPUT) |
| message(FATAL_ERROR "Invalid arguments. generate_out requires output.") |
| endif() |
| |
| add_custom_command(OUTPUT "${_GC_OUTPUT}" |
| COMMAND "${CMAKE_COMMAND}" |
| "-DINPUT=${_GC_INPUT}" |
| "-DOUTPUT=${_GC_OUTPUT}" |
| -P "${CMAKE_CURRENT_BINARY_DIR}/scripts/genchk.cmake" |
| DEPENDS "${_GC_INPUT}" ${_GC_DEPENDS} |
| WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}") |
| endfunction() |
| |
| # Generate .out from .c with awk |
| # generate_out(INPUT inputfile OUTPUT outputfile [DEPENDS dep1 [dep2...]]) |
| function(generate_out) |
| set(options) |
| set(oneValueArgs INPUT OUTPUT) |
| set(multiValueArgs DEPENDS) |
| cmake_parse_arguments(_GO "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN}) |
| if (NOT _GO_INPUT) |
| message(FATAL_ERROR "Invalid arguments. generate_out requires input.") |
| endif() |
| if (NOT _GO_OUTPUT) |
| message(FATAL_ERROR "Invalid arguments. generate_out requires output.") |
| endif() |
| |
| add_custom_command(OUTPUT "${_GO_OUTPUT}" |
| COMMAND "${CMAKE_COMMAND}" |
| "-DINPUT=${_GO_INPUT}" |
| "-DOUTPUT=${_GO_OUTPUT}" |
| -P "${CMAKE_CURRENT_BINARY_DIR}/scripts/genout.cmake" |
| DEPENDS "${_GO_INPUT}" ${_GO_DEPENDS} |
| WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}") |
| endfunction() |
| |
| # Generate specific source file with awk |
| # generate_source(OUTPUT outputfile [DEPENDS dep1 [dep2...]]) |
| function(generate_source) |
| set(options) |
| set(oneValueArgs OUTPUT) |
| set(multiValueArgs DEPENDS) |
| cmake_parse_arguments(_GSO "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN}) |
| if (NOT _GSO_OUTPUT) |
| message(FATAL_ERROR "Invalid arguments. generate_source requires output.") |
| endif() |
| |
| add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${_GSO_OUTPUT}" |
| COMMAND "${CMAKE_COMMAND}" |
| "-DOUTPUT=${_GSO_OUTPUT}" |
| -P "${CMAKE_CURRENT_BINARY_DIR}/scripts/gensrc.cmake" |
| DEPENDS ${_GSO_DEPENDS} |
| WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}") |
| endfunction() |
| |
| # Copy file |
| function(generate_copy source destination) |
| add_custom_command(OUTPUT "${destination}" |
| COMMAND "${CMAKE_COMMAND}" -E remove "${destination}" |
| COMMAND "${CMAKE_COMMAND}" -E copy "${source}" |
| "${destination}" |
| DEPENDS "${source}") |
| endfunction() |
| |
| # Generate scripts/pnglibconf.h |
| generate_source(OUTPUT "scripts/pnglibconf.c" |
| DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.dfa" |
| "${CMAKE_CURRENT_SOURCE_DIR}/scripts/options.awk" |
| "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h") |
| |
| # Generate pnglibconf.c |
| generate_source(OUTPUT "pnglibconf.c" |
| DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.dfa" |
| "${CMAKE_CURRENT_SOURCE_DIR}/scripts/options.awk" |
| "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h") |
| |
| if(PNG_PREFIX) |
| set(PNGLIBCONF_H_EXTRA_DEPENDS |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/prefix.out" |
| "${CMAKE_CURRENT_SOURCE_DIR}/scripts/macro.lst") |
| set(PNGPREFIX_H_EXTRA_DEPENDS |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/intprefix.out") |
| endif() |
| |
| generate_out(INPUT "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.c" |
| OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out") |
| |
| # Generate pnglibconf.h |
| generate_source(OUTPUT "pnglibconf.h" |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out" |
| ${PNGLIBCONF_H_EXTRA_DEPENDS}) |
| |
| generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/intprefix.c" |
| OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/intprefix.out" |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h") |
| |
| generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/prefix.c" |
| OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/prefix.out" |
| DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/png.h" |
| "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h" |
| "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out") |
| |
| # Generate pngprefix.h |
| generate_source(OUTPUT "pngprefix.h" |
| DEPENDS ${PNGPREFIX_H_EXTRA_DEPENDS}) |
| |
| generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/sym.c" |
| OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/sym.out" |
| DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h") |
| |
| generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/symbols.c" |
| OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.out" |
| DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/png.h" |
| "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h" |
| "${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.h.prebuilt") |
| |
| generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/vers.c" |
| OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out" |
| DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/png.h" |
| "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h" |
| "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h") |
| |
| generate_chk(INPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.out" |
| OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.chk" |
| DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/scripts/checksym.awk" |
| "${CMAKE_CURRENT_SOURCE_DIR}/scripts/symbols.def") |
| |
| add_custom_target(symbol-check DEPENDS |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.chk") |
| |
| generate_copy("${CMAKE_CURRENT_BINARY_DIR}/scripts/sym.out" |
| "${CMAKE_CURRENT_BINARY_DIR}/libpng.sym") |
| generate_copy("${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out" |
| "${CMAKE_CURRENT_BINARY_DIR}/libpng.vers") |
| |
| add_custom_target(genvers DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/libpng.vers") |
| add_custom_target(gensym DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/libpng.sym") |
| |
| add_custom_target("genprebuilt" |
| COMMAND "${CMAKE_COMMAND}" |
| "-DOUTPUT=scripts/pnglibconf.h.prebuilt" |
| -P "${CMAKE_CURRENT_BINARY_DIR}/scripts/gensrc.cmake" |
| WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}") |
| |
| # A single target handles generation of all generated files. If |
| # they are dependend upon separately by multiple targets, this |
| # confuses parallel make (it would require a separate top-level |
| # target for each file to track the dependencies properly). |
| add_custom_target(genfiles DEPENDS |
| "${CMAKE_CURRENT_BINARY_DIR}/libpng.sym" |
| "${CMAKE_CURRENT_BINARY_DIR}/libpng.vers" |
| "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.c" |
| "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h" |
| "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out" |
| "${CMAKE_CURRENT_BINARY_DIR}/pngprefix.h" |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/intprefix.out" |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/pnglibconf.c" |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/prefix.out" |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/sym.out" |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.chk" |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.out" |
| "${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out") |
| endif(NOT AWK) |
| |
| # OUR SOURCES |
| set(libpng_public_hdrs |
| png.h |
| pngconf.h |
| "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h" |
| ) |
| set(libpng_private_hdrs |
| pngpriv.h |
| pngdebug.h |
| pnginfo.h |
| pngstruct.h |
| ) |
| if(AWK) |
| list(APPEND libpng_private_hdrs "${CMAKE_CURRENT_BINARY_DIR}/pngprefix.h") |
| endif() |
| set(libpng_sources |
| ${libpng_public_hdrs} |
| ${libpng_private_hdrs} |
| png.c |
| pngerror.c |
| pngget.c |
| pngmem.c |
| pngpread.c |
| pngread.c |
| pngrio.c |
| pngrtran.c |
| pngrutil.c |
| pngset.c |
| pngtrans.c |
| pngwio.c |
| pngwrite.c |
| pngwtran.c |
| pngwutil.c |
| ${libpng_arm_sources} |
| ) |
| set(pngtest_sources |
| pngtest.c |
| ) |
| set(pngvalid_sources |
| contrib/libtests/pngvalid.c |
| ) |
| set(pngstest_sources |
| contrib/libtests/pngstest.c |
| ) |
| set(pngunknown_sources |
| contrib/libtests/pngunknown.c |
| ) |
| set(pngimage_sources |
| contrib/libtests/pngimage.c |
| ) |
| set(pngfix_sources |
| contrib/tools/pngfix.c |
| ) |
| set(png_fix_itxt_sources |
| contrib/tools/png-fix-itxt.c |
| ) |
| |
| if(MSVC) |
| add_definitions(-D_CRT_SECURE_NO_DEPRECATE) |
| endif(MSVC) |
| |
| if(PNG_DEBUG) |
| add_definitions(-DPNG_DEBUG) |
| endif() |
| |
| # NOW BUILD OUR TARGET |
| include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${ZLIB_INCLUDE_DIR}) |
| |
| unset(PNG_LIB_TARGETS) |
| |
| if(PNG_SHARED) |
| add_library(png SHARED ${libpng_sources}) |
| set(PNG_LIB_TARGETS png) |
| set_target_properties(png PROPERTIES OUTPUT_NAME ${PNG_LIB_NAME}) |
| add_dependencies(png genfiles) |
| if(MSVC) |
| # msvc does not append 'lib' - do it here to have consistent name |
| set_target_properties(png PROPERTIES PREFIX "lib") |
| set_target_properties(png PROPERTIES IMPORT_PREFIX "lib") |
| endif() |
| target_link_libraries(png ${ZLIB_LIBRARY} ${M_LIBRARY}) |
| |
| if(UNIX AND AWK) |
| if(HAVE_LD_VERSION_SCRIPT) |
| set_target_properties(png PROPERTIES LINK_FLAGS |
| "-Wl,--version-script='${CMAKE_CURRENT_BINARY_DIR}/libpng.vers'") |
| elseif(HAVE_SOLARIS_LD_VERSION_SCRIPT) |
| set_target_properties(png PROPERTIES LINK_FLAGS |
| "-Wl,-M -Wl,'${CMAKE_CURRENT_BINARY_DIR}/libpng.vers'") |
| endif() |
| endif() |
| endif() |
| |
| if(PNG_STATIC) |
| # does not work without changing name |
| set(PNG_LIB_NAME_STATIC png_static) |
| add_library(png_static STATIC ${libpng_sources}) |
| add_dependencies(png_static genfiles) |
| # MSVC doesn't use a different file extension for shared vs. static |
| # libs. We are able to change OUTPUT_NAME to remove the _static |
| # for all other platforms. |
| if(NOT MSVC) |
| set_target_properties(png_static PROPERTIES |
| OUTPUT_NAME "${PNG_LIB_NAME}" |
| CLEAN_DIRECT_OUTPUT 1) |
| else() |
| set_target_properties(png_static PROPERTIES |
| OUTPUT_NAME "${PNG_LIB_NAME}_static" |
| CLEAN_DIRECT_OUTPUT 1) |
| endif() |
| list(APPEND PNG_LIB_TARGETS png_static) |
| if(MSVC) |
| # msvc does not append 'lib' - do it here to have consistent name |
| set_target_properties(png_static PROPERTIES PREFIX "lib") |
| endif() |
| target_link_libraries(png_static ${ZLIB_LIBRARY} ${M_LIBRARY}) |
| endif() |
| |
| if(PNG_FRAMEWORK) |
| set(PNG_LIB_NAME_FRAMEWORK png_framework) |
| add_library(png_framework SHARED ${libpng_sources}) |
| add_dependencies(png_framework genfiles) |
| list(APPEND PNG_LIB_TARGETS png_framework) |
| set_target_properties(png_framework PROPERTIES |
| FRAMEWORK TRUE |
| FRAMEWORK_VERSION ${PNGLIB_VERSION} |
| MACOSX_FRAMEWORK_SHORT_VERSION_STRING ${PNGLIB_MAJOR}.${PNGLIB_MINOR} |
| MACOSX_FRAMEWORK_BUNDLE_VERSION ${PNGLIB_VERSION} |
| MACOSX_FRAMEWORK_IDENTIFIER org.libpng.libpng |
| XCODE_ATTRIBUTE_INSTALL_PATH "@rpath" |
| PUBLIC_HEADER "${libpng_public_hdrs}" |
| OUTPUT_NAME png) |
| target_link_libraries(png_framework ${ZLIB_LIBRARY} ${M_LIBRARY}) |
| endif() |
| |
| if(NOT PNG_LIB_TARGETS) |
| message(SEND_ERROR |
| "No library variant selected to build. " |
| "Please enable at least one of the following options: " |
| " PNG_STATIC, PNG_SHARED, PNG_FRAMEWORK") |
| endif() |
| |
| if(PNG_SHARED AND WIN32) |
| set_target_properties(png PROPERTIES DEFINE_SYMBOL PNG_BUILD_DLL) |
| endif() |
| |
| function(png_add_test) |
| set(options) |
| set(oneValueArgs NAME COMMAND) |
| set(multiValueArgs OPTIONS FILES) |
| cmake_parse_arguments(_PAT "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN}) |
| |
| if (NOT _PAT_NAME) |
| message(FATAL_ERROR "Invalid arguments. png_add_test requires name.") |
| endif() |
| if (NOT _PAT_COMMAND) |
| message(FATAL_ERROR "Invalid arguments. png_add_test requires command.") |
| endif() |
| |
| set(TEST_OPTIONS "${_PAT_OPTIONS}") |
| set(TEST_FILES "${_PAT_FILES}") |
| |
| configure_file("${CMAKE_CURRENT_SOURCE_DIR}/scripts/test.cmake.in" |
| "${CMAKE_CURRENT_BINARY_DIR}/tests/${_PAT_NAME}.cmake" @ONLY) |
| if(CMAKE_MAJOR_VERSION GREATER 2) # have generator expressions |
| add_test(NAME "${_PAT_NAME}" |
| COMMAND "${CMAKE_COMMAND}" |
| "-DLIBPNG=$<TARGET_FILE:png>" |
| "-DTEST_COMMAND=$<TARGET_FILE:${_PAT_COMMAND}>" |
| -P "${CMAKE_CURRENT_BINARY_DIR}/tests/${_PAT_NAME}.cmake") |
| else() # old 2.x add_test; limited and won't work well on Windows |
| # Note LIBPNG is a dummy value as there are no generator expressions |
| add_test("${_PAT_NAME}" "${CMAKE_COMMAND}" |
| "-DLIBPNG=${CMAKE_CURRENT_BINARY_DIR}/libpng.so" |
| "-DTEST_COMMAND=./${_PAT_COMMAND}" |
| -P "${CMAKE_CURRENT_BINARY_DIR}/tests/${_PAT_NAME}.cmake") |
| endif() |
| endfunction() |
| |
| if(PNG_TESTS AND PNG_SHARED) |
| # Find test PNG files by globbing, but sort lists to ensure |
| # consistency between different filesystems. |
| file(GLOB PNGSUITE_PNGS "${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/*.png") |
| list(SORT PNGSUITE_PNGS) |
| file(GLOB TEST_PNGS "${CMAKE_CURRENT_SOURCE_DIR}/contrib/testpngs/*.png") |
| list(SORT TEST_PNGS) |
| |
| set(PNGTEST_PNG "${CMAKE_CURRENT_SOURCE_DIR}/pngtest.png") |
| |
| add_executable(pngtest ${pngtest_sources}) |
| target_link_libraries(pngtest png) |
| |
| png_add_test(NAME pngtest COMMAND pngtest FILES "${PNGTEST_PNG}") |
| |
| add_executable(pngvalid ${pngvalid_sources}) |
| target_link_libraries(pngvalid png) |
| |
| png_add_test(NAME pngvalid-gamma-16-to-8 |
| COMMAND pngvalid OPTIONS --gamma-16-to-8) |
| png_add_test(NAME pngvalid-gamma-alpha-mode |
| COMMAND pngvalid OPTIONS --gamma-alpha-mode) |
| png_add_test(NAME pngvalid-gamma-background |
| COMMAND pngvalid OPTIONS --gamma-background) |
| png_add_test(NAME pngvalid-gamma-expand16-alpha-mode |
| COMMAND pngvalid OPTIONS --gamma-alpha-mode --expand16) |
| png_add_test(NAME pngvalid-gamma-expand16-background |
| COMMAND pngvalid OPTIONS --gamma-background --expand16) |
| png_add_test(NAME pngvalid-gamma-expand16-transform |
| COMMAND pngvalid OPTIONS --gamma-transform --expand16) |
| png_add_test(NAME pngvalid-gamma-sbit |
| COMMAND pngvalid OPTIONS --gamma-sbit) |
| png_add_test(NAME pngvalid-gamma-threshold |
| COMMAND pngvalid OPTIONS --gamma-threshold) |
| png_add_test(NAME pngvalid-gamma-transform |
| COMMAND pngvalid OPTIONS --gamma-transform) |
| png_add_test(NAME pngvalid-progressive-interlace-standard |
| COMMAND pngvalid OPTIONS --standard --progressive-read --interlace) |
| png_add_test(NAME pngvalid-progressive-size |
| COMMAND pngvalid OPTIONS --size --progressive-read) |
| png_add_test(NAME pngvalid-progressive-standard |
| COMMAND pngvalid OPTIONS --standard --progressive-read) |
| png_add_test(NAME pngvalid-standard |
| COMMAND pngvalid OPTIONS --standard) |
| png_add_test(NAME pngvalid-transform |
| COMMAND pngvalid OPTIONS --transform) |
| |
| add_executable(pngstest ${pngstest_sources}) |
| target_link_libraries(pngstest png) |
| |
| foreach(gamma_type 1.8 linear none sRGB) |
| foreach(alpha_type none alpha) |
| set(PNGSTEST_FILES) |
| foreach(test_png ${TEST_PNGS}) |
| string(REGEX MATCH ".*-linear[-.].*" TEST_PNG_LINEAR "${test_png}") |
| string(REGEX MATCH ".*-sRGB[-.].*" TEST_PNG_SRGB "${test_png}") |
| string(REGEX MATCH ".*-1.8[-.].*" TEST_PNG_G18 "${test_png}") |
| string(REGEX MATCH ".*-alpha-.*" TEST_PNG_ALPHA "${test_png}") |
| |
| set(TEST_PNG_VALID TRUE) |
| |
| if(TEST_PNG_ALPHA) |
| if (NOT "${alpha_type}" STREQUAL "alpha") |
| set(TEST_PNG_VALID FALSE) |
| endif() |
| else() |
| if ("${alpha_type}" STREQUAL "alpha") |
| set(TEST_PNG_VALID FALSE) |
| endif() |
| endif() |
| |
| if(TEST_PNG_LINEAR) |
| if(NOT "${gamma_type}" STREQUAL "linear") |
| set(TEST_PNG_VALID FALSE) |
| endif() |
| elseif(TEST_PNG_SRGB) |
| if(NOT "${gamma_type}" STREQUAL "sRGB") |
| set(TEST_PNG_VALID FALSE) |
| endif() |
| elseif(TEST_PNG_G18) |
| if(NOT "${gamma_type}" STREQUAL "1.8") |
| set(TEST_PNG_VALID FALSE) |
| endif() |
| else() |
| if(NOT "${gamma_type}" STREQUAL "none") |
| set(TEST_PNG_VALID FALSE) |
| endif() |
| endif() |
| |
| if(TEST_PNG_VALID) |
| list(APPEND PNGSTEST_FILES "${test_png}") |
| endif() |
| endforeach() |
| # Should already be sorted, but sort anyway to be certain. |
| list(SORT PNGSTEST_FILES) |
| png_add_test(NAME pngstest-${gamma_type}-${alpha_type} |
| COMMAND pngstest |
| OPTIONS --tmpfile "${gamma_type}-${alpha_type}-" --log |
| FILES ${PNGSTEST_FILES}) |
| endforeach() |
| endforeach() |
| |
| add_executable(pngunknown ${pngunknown_sources}) |
| target_link_libraries(pngunknown png) |
| |
| png_add_test(NAME pngunknown-discard COMMAND pngunknown OPTIONS --strict default=discard FILES "${PNGTEST_PNG}") |
| png_add_test(NAME pngunknown-IDAT COMMAND pngunknown OPTIONS --strict default=discard IDAT=save FILES "${PNGTEST_PNG}") |
| png_add_test(NAME pngunknown-if-safe COMMAND pngunknown OPTIONS --strict default=if-safe FILES "${PNGTEST_PNG}") |
| png_add_test(NAME pngunknown-sAPI COMMAND pngunknown OPTIONS --strict bKGD=save cHRM=save gAMA=save all=discard iCCP=save sBIT=save sRGB=save FILES "${PNGTEST_PNG}") |
| png_add_test(NAME pngunknown-save COMMAND pngunknown OPTIONS --strict default=save FILES "${PNGTEST_PNG}") |
| png_add_test(NAME pngunknown-sTER COMMAND pngunknown OPTIONS --strict sTER=if-safe FILES "${PNGTEST_PNG}") |
| png_add_test(NAME pngunknown-vpAg COMMAND pngunknown OPTIONS --strict vpAg=if-safe FILES "${PNGTEST_PNG}") |
| |
| add_executable(pngimage ${pngimage_sources}) |
| target_link_libraries(pngimage png) |
| |
| png_add_test(NAME pngimage-quick COMMAND pngimage OPTIONS --list-combos --log FILES ${PNGSUITE_PNGS}) |
| png_add_test(NAME pngimage-full COMMAND pngimage OPTIONS --exhaustive --list-combos --log FILES ${PNGSUITE_PNGS}) |
| endif() |
| |
| if(PNG_SHARED) |
| add_executable(pngfix ${pngfix_sources}) |
| target_link_libraries(pngfix png) |
| set(PNG_BIN_TARGETS pngfix) |
| |
| add_executable(png-fix-itxt ${png_fix_itxt_sources}) |
| target_link_libraries(png-fix-itxt ${ZLIB_LIBRARY} ${M_LIBRARY}) |
| list(APPEND PNG_BIN_TARGETS png-fix-itxt) |
| endif() |
| |
| # Ensure the CMAKE_LIBRARY_OUTPUT_DIRECTORY is set |
| IF(NOT CMAKE_LIBRARY_OUTPUT_DIRECTORY) |
| SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY "lib") |
| ENDIF(NOT CMAKE_LIBRARY_OUTPUT_DIRECTORY) |
| |
| # Set a variable with CMake code which: |
| # Creates a symlink from src to dest (if possible) or alternatively |
| # copies if different. |
| macro(CREATE_SYMLINK SRC_FILE DEST_FILE) |
| FILE(REMOVE ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE}) |
| if(WIN32 AND NOT CYGWIN AND NOT MSYS) |
| ADD_CUSTOM_COMMAND( |
| OUTPUT ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE} ${CMAKE_CURRENT_BINARY_DIR}/${DEST_FILE} |
| COMMAND ${CMAKE_COMMAND} -E copy_if_different "${SRC_FILE}" ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE} |
| COMMAND ${CMAKE_COMMAND} -E copy_if_different "${SRC_FILE}" ${CMAKE_CURRENT_BINARY_DIR}/${DEST_FILE} |
| DEPENDS ${PNG_LIB_TARGETS} |
| ) |
| ADD_CUSTOM_TARGET(${DEST_FILE}_COPY ALL DEPENDS ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE}) |
| else(WIN32 AND NOT CYGWIN AND NOT MSYS) |
| get_filename_component(LINK_TARGET "${SRC_FILE}" NAME) |
| execute_process(COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_LIBRARY_OUTPUT_DIRECTORY}) |
| execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink "${LINK_TARGET}" ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE} WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}) |
| execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink "${LINK_TARGET}" ${DEST_FILE} WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}) |
| endif(WIN32 AND NOT CYGWIN AND NOT MSYS) |
| endmacro() |
| |
| # Create source generation scripts. |
| configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/genchk.cmake.in |
| ${CMAKE_CURRENT_BINARY_DIR}/scripts/genchk.cmake @ONLY) |
| configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/genout.cmake.in |
| ${CMAKE_CURRENT_BINARY_DIR}/scripts/genout.cmake @ONLY) |
| configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/gensrc.cmake.in |
| ${CMAKE_CURRENT_BINARY_DIR}/scripts/gensrc.cmake @ONLY) |
| |
| |
| # libpng is a library so default to 'lib' |
| if(NOT DEFINED CMAKE_INSTALL_LIBDIR) |
| set(CMAKE_INSTALL_LIBDIR lib) |
| endif(NOT DEFINED CMAKE_INSTALL_LIBDIR) |
| |
| # CREATE PKGCONFIG FILES |
| # we use the same files like ./configure, so we have to set its vars |
| # Only do this on Windows for Cygwin - the files don't make much sense outside |
| # a UNIX look alike |
| if(NOT WIN32 OR CYGWIN OR MINGW) |
| set(prefix ${CMAKE_INSTALL_PREFIX}) |
| set(exec_prefix ${CMAKE_INSTALL_PREFIX}) |
| set(libdir ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}) |
| set(includedir ${CMAKE_INSTALL_PREFIX}/include) |
| set(LIBS "-lz -lm") |
| configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng.pc.in |
| ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc @ONLY) |
| CREATE_SYMLINK(${PNGLIB_NAME}.pc libpng.pc) |
| |
| configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng-config.in |
| ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config @ONLY) |
| CREATE_SYMLINK(${PNGLIB_NAME}-config libpng-config) |
| endif(NOT WIN32 OR CYGWIN OR MINGW) |
| |
| # SET UP LINKS |
| if(PNG_SHARED) |
| set_target_properties(png PROPERTIES |
| # VERSION 16.${PNGLIB_RELEASE}.1.6.28rc02 |
| VERSION 16.${PNGLIB_RELEASE}.0 |
| SOVERSION 16 |
| CLEAN_DIRECT_OUTPUT 1) |
| endif() |
| |
| # If CMake > 2.4.x, we set a variable used below to export |
| # targets to an export file. |
| # TODO: Use VERSION_GREATER after our cmake_minimum_required >= 2.6.2 |
| if(CMAKE_MAJOR_VERSION GREATER 1 AND CMAKE_MINOR_VERSION GREATER 4) |
| set(PNG_EXPORT_RULE EXPORT libpng) |
| elseif(CMAKE_MAJOR_VERSION GREATER 2) # future proof |
| set(PNG_EXPORT_RULE EXPORT libpng) |
| endif() |
| |
| # INSTALL |
| if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL ) |
| install(TARGETS ${PNG_LIB_TARGETS} |
| ${PNG_EXPORT_RULE} |
| RUNTIME DESTINATION bin |
| LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} |
| ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} |
| FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR}) |
| |
| if(PNG_SHARED) |
| # Create a symlink for libpng.dll.a => libpng16.dll.a on Cygwin |
| if(CYGWIN OR MINGW) |
| get_target_property(BUILD_TARGET_LOCATION png LOCATION_${CMAKE_BUILD_TYPE}) |
| CREATE_SYMLINK(${BUILD_TARGET_LOCATION} libpng${CMAKE_IMPORT_LIBRARY_SUFFIX}) |
| install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${CMAKE_IMPORT_LIBRARY_SUFFIX} |
| DESTINATION ${CMAKE_INSTALL_LIBDIR}) |
| endif(CYGWIN OR MINGW) |
| |
| if(NOT WIN32) |
| get_target_property(BUILD_TARGET_LOCATION png LOCATION_${CMAKE_BUILD_TYPE}) |
| CREATE_SYMLINK(${BUILD_TARGET_LOCATION} libpng${CMAKE_SHARED_LIBRARY_SUFFIX}) |
| install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${CMAKE_SHARED_LIBRARY_SUFFIX} |
| DESTINATION ${CMAKE_INSTALL_LIBDIR}) |
| endif(NOT WIN32) |
| endif(PNG_SHARED) |
| |
| if(PNG_STATIC) |
| if(NOT WIN32 OR CYGWIN OR MINGW) |
| get_target_property(BUILD_TARGET_LOCATION png_static LOCATION_${CMAKE_BUILD_TYPE}) |
| CREATE_SYMLINK(${BUILD_TARGET_LOCATION} libpng${CMAKE_STATIC_LIBRARY_SUFFIX}) |
| install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${CMAKE_STATIC_LIBRARY_SUFFIX} |
| DESTINATION ${CMAKE_INSTALL_LIBDIR}) |
| endif(NOT WIN32 OR CYGWIN OR MINGW) |
| endif() |
| endif() |
| |
| if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL ) |
| install(FILES ${libpng_public_hdrs} DESTINATION include) |
| install(FILES ${libpng_public_hdrs} DESTINATION include/${PNGLIB_NAME}) |
| endif() |
| if(NOT SKIP_INSTALL_EXECUTABLES AND NOT SKIP_INSTALL_ALL ) |
| if(NOT WIN32 OR CYGWIN OR MINGW) |
| install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config DESTINATION bin) |
| install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config |
| DESTINATION bin) |
| endif(NOT WIN32 OR CYGWIN OR MINGW) |
| endif() |
| |
| if(NOT SKIP_INSTALL_PROGRAMS AND NOT SKIP_INSTALL_ALL ) |
| install(TARGETS ${PNG_BIN_TARGETS} |
| RUNTIME DESTINATION bin) |
| endif() |
| |
| if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL ) |
| # Install man pages |
| if(NOT PNG_MAN_DIR) |
| set(PNG_MAN_DIR "share/man") |
| endif() |
| install(FILES libpng.3 libpngpf.3 DESTINATION ${PNG_MAN_DIR}/man3) |
| install(FILES png.5 DESTINATION ${PNG_MAN_DIR}/man5) |
| # Install pkg-config files |
| if(NOT WIN32 OR CYGWIN OR MINGW) |
| install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc |
| DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig) |
| install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config |
| DESTINATION bin) |
| install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc |
| DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig) |
| install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config |
| DESTINATION bin) |
| endif(NOT WIN32 OR CYGWIN OR MINGW) |
| endif() |
| |
| # On versions of CMake that support it, create an export file CMake |
| # users can include() to import our targets |
| if(PNG_EXPORT_RULE AND NOT SKIP_INSTALL_EXPORT AND NOT SKIP_INSTALL_ALL ) |
| install(EXPORT libpng DESTINATION lib/libpng FILE lib${PNG_LIB_NAME}.cmake) |
| endif() |
| |
| # what's with libpng-manual.txt and all the extra files? |
| |
| # UNINSTALL |
| # do we need this? |
| |
| # DIST |
| # do we need this? |
| |
| # to create msvc import lib for mingw compiled shared lib |
| # pexports libpng.dll > libpng.def |
| # lib /def:libpng.def /machine:x86 |
| |