Imported from libpng-1.2.8rc3.tar
diff --git a/scripts/libpng-config-head.in b/scripts/libpng-config-head.in
index 3205b07..9c0502f 100755
--- a/scripts/libpng-config-head.in
+++ b/scripts/libpng-config-head.in
@@ -8,7 +8,7 @@
# Modeled after libxml-config.
-version=1.2.8rc2
+version=1.2.8rc3
prefix=""
libdir=""
libs=""
diff --git a/scripts/libpng.pc.in b/scripts/libpng.pc.in
index 9381a38..f929021 100644
--- a/scripts/libpng.pc.in
+++ b/scripts/libpng.pc.in
@@ -6,6 +6,6 @@
Name: libpng12
Description: Loads and saves PNG files
-Version: 1.2.8rc2
+Version: 1.2.8rc3
Libs: -L${libdir} -lpng12 -lz -lm
Cflags: -I${includedir}/libpng12
diff --git a/scripts/makefile.32sunu b/scripts/makefile.32sunu
index 4256cb4..f505f16 100644
--- a/scripts/makefile.32sunu
+++ b/scripts/makefile.32sunu
@@ -33,7 +33,7 @@
LIBNAME=libpng12
PNGMAJ = 0
-PNGMIN = 1.2.8rc2
+PNGMIN = 1.2.8rc3
PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include
diff --git a/scripts/makefile.64sunu b/scripts/makefile.64sunu
index 6933cbb..da84a3b 100644
--- a/scripts/makefile.64sunu
+++ b/scripts/makefile.64sunu
@@ -33,7 +33,7 @@
LIBNAME=libpng12
PNGMAJ = 0
-PNGMIN = 1.2.8rc2
+PNGMIN = 1.2.8rc3
PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include
diff --git a/scripts/makefile.aix b/scripts/makefile.aix
index 57365db..f38a2b4 100644
--- a/scripts/makefile.aix
+++ b/scripts/makefile.aix
@@ -18,7 +18,7 @@
LIBNAME=libpng12
PNGMAJ = 0
-PNGMIN = 1.2.8rc2
+PNGMIN = 1.2.8rc3
PNGVER = $(PNGMAJ).$(PNGMIN)
prefix=/usr/local
diff --git a/scripts/makefile.beos b/scripts/makefile.beos
index efa1f16..89f6c27 100644
--- a/scripts/makefile.beos
+++ b/scripts/makefile.beos
@@ -12,7 +12,7 @@
ZLIBINC=/usr/local/include
PNGMAJ = 0
-PNGMIN = 1.2.8rc2
+PNGMIN = 1.2.8rc3
PNGVER = $(PNGMAJ).$(PNGMIN)
ALIGN=
diff --git a/scripts/makefile.cygwin b/scripts/makefile.cygwin
index 83b6bf4..f5bb4e7 100644
--- a/scripts/makefile.cygwin
+++ b/scripts/makefile.cygwin
@@ -79,7 +79,7 @@
LIBNAME = libpng12
PNGMAJ = 0
CYGDLL = 12
-PNGMIN = 1.2.8rc2
+PNGMIN = 1.2.8rc3
PNGVER = $(PNGMAJ).$(PNGMIN)
SHAREDLIB=cygpng$(CYGDLL).dll
diff --git a/scripts/makefile.darwin b/scripts/makefile.darwin
index b0b3a2a..5d11d0c 100644
--- a/scripts/makefile.darwin
+++ b/scripts/makefile.darwin
@@ -23,7 +23,7 @@
RANLIB=ranlib
PNGMAJ = 0
-PNGMIN = 1.2.8rc2
+PNGMIN = 1.2.8rc3
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng12
diff --git a/scripts/makefile.dec b/scripts/makefile.dec
index 31958ac..34ff3ef 100644
--- a/scripts/makefile.dec
+++ b/scripts/makefile.dec
@@ -32,7 +32,7 @@
ZLIBINC=../zlib
PNGMAJ = 0
-PNGMIN = 1.2.8rc2
+PNGMIN = 1.2.8rc3
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng12
diff --git a/scripts/makefile.elf b/scripts/makefile.elf
new file mode 100644
index 0000000..c2df435
--- /dev/null
+++ b/scripts/makefile.elf
@@ -0,0 +1,249 @@
+# makefile for libpng.a and libpng12.so on Linux ELF with gcc
+# Copyright (C) 1998, 1999, 2002 Greg Roelofs and Glenn Randers-Pehrson
+# Copyright (C) 1996, 1997 Andreas Dilger
+# For conditions of distribution and use, see copyright notice in png.h
+
+LIBNAME = libpng12
+PNGMAJ = 0
+PNGMIN = 1.2.8rc3
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+CC=gcc
+
+# where "make install" puts libpng12.a, libpng12.so*,
+# libpng12/png.h and libpng12/pngconf.h
+# Prefix must be a full pathname.
+prefix=/usr/local
+
+# Where the zlib library and include files are located.
+#ZLIBLIB=/usr/local/lib
+#ZLIBINC=/usr/local/include
+ZLIBLIB=../zlib
+ZLIBINC=../zlib
+
+ALIGN=
+# for i386:
+#ALIGN=-malign-loops=2 -malign-functions=2
+
+WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
+ -Wmissing-declarations -Wtraditional -Wcast-align \
+ -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
+
+# for pgcc version 2.95.1, -O3 is buggy; don't use it.
+
+CFLAGS=-I$(ZLIBINC) -Wall -O3 -funroll-loops \
+ $(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5
+
+LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng12 -lz -lm
+LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm
+
+RANLIB=ranlib
+#RANLIB=echo
+
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+MANPATH=$(prefix)/man
+BINPATH=$(prefix)/bin
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
+DB=$(DESTDIR)$(BINPATH)
+DI=$(DESTDIR)$(INCPATH)
+DL=$(DESTDIR)$(LIBPATH)
+DM=$(DESTDIR)$(MANPATH)
+
+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
+
+OBJSDLL = $(OBJS:.o=.pic.o)
+
+.SUFFIXES: .c .o .pic.o
+
+.c.pic.o:
+ $(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
+
+all: libpng.a $(LIBNAME).so pngtest pngtest-static libpng.pc libpng-config
+
+libpng.a: $(OBJS)
+ ar rc $@ $(OBJS)
+ $(RANLIB) $@
+
+libpng.pc:
+ cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! > libpng.pc
+
+libpng.syms: png.h pngconf.h
+ $(CC) $(CFLAGS) -E -DPNG_BUILDSYMS png.h |\
+ awk -F '[\t [\]();]' 'BEGIN{print "{global:"}\
+ { for (i=1;i+2<=NF;++i)\
+ if ($$(i)=="PNG_FUNCTION_EXPORT" && $$(i+2)=="END")\
+ print $$(i+1) ";";\
+ for (i=1;i+1<=NF;++i)\
+ if ($$(i)=="PNG_DATA_EXPORT")\
+ print $$(i+1) ";";}\
+ END{print "local: *; };"}' >$@.new
+ rm -f $@
+ mv $@.new $@
+
+libpng-config:
+ ( cat scripts/libpng-config-head.in; \
+ echo prefix=\"$(prefix)\"; \
+ echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
+ echo L_opts=\"-L$(LIBPATH)\"; \
+ echo R_opts=\"-Wl,-rpath,$(LIBPATH)\"; \
+ echo libs=\"-lpng12 -lz -lm\"; \
+ cat scripts/libpng-config-body.in ) > libpng-config
+ chmod +x libpng-config
+
+$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
+ ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+
+$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
+ ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+
+$(LIBNAME).so.$(PNGVER): $(OBJSDLL) libpng.syms
+ $(CC) -shared -Wl,-soname,$(LIBNAME).so.$(PNGMAJ) \
+ -Wl,-version-script,libpng.syms \
+ -o $(LIBNAME).so.$(PNGVER) \
+ $(OBJSDLL)
+
+libpng.so.3.$(PNGMIN): $(OBJSDLL) libpng.syms
+ $(CC) -shared -Wl,-soname,libpng.so.3 \
+ -Wl,-version-script,libpng.syms \
+ -o libpng.so.3.$(PNGMIN) \
+ $(OBJSDLL)
+
+pngtest: pngtest.o $(LIBNAME).so
+ $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+pngtest-static: pngtest.o libpng.a
+ $(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
+
+test: pngtest pngtest-static
+ @echo ""
+ @echo " Running pngtest dynamically linked with $(LIBNAME).so:"
+ @echo ""
+ ./pngtest
+ @echo ""
+ @echo " Running pngtest statically linked with libpng.a:"
+ @echo ""
+ ./pngtest-static
+
+install-headers: png.h pngconf.h
+ -@if [ ! -d $(DI) ]; then mkdir $(DI); fi
+ -@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
+ cp png.h pngconf.h $(DI)/$(LIBNAME)
+ chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
+ -@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h
+ -@/bin/rm -f $(DI)/libpng
+ (cd $(DI); ln -sf $(LIBNAME) libpng; ln -sf $(LIBNAME)/* .)
+
+install-static: install-headers libpng.a
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ cp libpng.a $(DL)/$(LIBNAME).a
+ chmod 644 $(DL)/$(LIBNAME).a
+ -@/bin/rm -f $(DL)/libpng.a
+ (cd $(DL); ln -sf $(LIBNAME).a libpng.a)
+
+install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
+ libpng.so.3.$(PNGMIN)
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ -@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
+ -@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)
+ -@/bin/rm -f $(DL)/libpng.so
+ -@/bin/rm -f $(DL)/libpng.so.3
+ -@/bin/rm -f $(DL)/libpng.so.3.$(PNGMIN)*
+ cp $(LIBNAME).so.$(PNGVER) $(DL)
+ cp libpng.so.3.$(PNGMIN) $(DL)
+ chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
+ chmod 755 $(DL)/libpng.so.3.$(PNGMIN)
+ (cd $(DL); \
+ ln -sf libpng.so.3.$(PNGMIN) libpng.so.3; \
+ ln -sf libpng.so.3 libpng.so; \
+ ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
+ ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+ -@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
+ -@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
+ -@/bin/rm -f $(DL)/pkgconfig/libpng.pc
+ cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
+ chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
+ (cd $(DL)/pkgconfig; ln -sf $(LIBNAME).pc libpng.pc)
+
+install-man: libpng.3 libpngpf.3 png.5
+ -@if [ ! -d $(DM) ]; then mkdir $(DM); fi
+ -@if [ ! -d $(DM)/man3 ]; then mkdir $(DM)/man3; fi
+ -@/bin/rm -f $(DM)/man3/libpng.3
+ -@/bin/rm -f $(DM)/man3/libpngpf.3
+ cp libpng.3 $(DM)/man3
+ cp libpngpf.3 $(DM)/man3
+ -@if [ ! -d $(DM)/man5 ]; then mkdir $(DM)/man5; fi
+ -@/bin/rm -f $(DM)/man5/png.5
+ cp png.5 $(DM)/man5
+
+install-config: libpng-config
+ -@if [ ! -d $(DB) ]; then mkdir $(DB); fi
+ -@/bin/rm -f $(DB)/libpng-config
+ -@/bin/rm -f $(DB)/$(LIBNAME)-config
+ cp libpng-config $(DB)/$(LIBNAME)-config
+ chmod 755 $(DB)/$(LIBNAME)-config
+ (cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
+
+install: install-static install-shared install-man install-config
+
+# If you installed in $(DESTDIR), test-installed won't work until you
+# move the library to its final location. Use test-dd to test it
+# before then.
+
+test-dd:
+ echo
+ echo Testing installed dynamic shared library in $(DL).
+ $(CC) -I$(DI) -I$(ZLIBINC) \
+ `$(BINPATH)/libpng12-config --cflags` pngtest.c \
+ -L$(DL) -L$(ZLIBLIB) -W1, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
+ -o pngtestd `$(BINPATH)/libpng12-config --ldflags`
+ ./pngtestd pngtest.png
+
+test-installed:
+ $(CC) -I$(ZLIBINC) \
+ `$(BINPATH)/libpng12-config --cflags` pngtest.c \
+ -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
+ -o pngtesti `$(BINPATH)/libpng12-config --ldflags`
+ ./pngtesti pngtest.png
+
+clean:
+ /bin/rm -f *.o libpng.a libpng.syms pngtest pngout.png libpng-config \
+ $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* pngtest-static pngtesti \
+ libpng.so.3.$(PNGMIN) \
+ libpng.pc
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+ chmod a-w *.[ch35] $(DOCS) scripts/*
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o png.pic.o: png.h pngconf.h
+pngerror.o pngerror.pic.o: png.h pngconf.h
+pngrio.o pngrio.pic.o: png.h pngconf.h
+pngwio.o pngwio.pic.o: png.h pngconf.h
+pngmem.o pngmem.pic.o: png.h pngconf.h
+pngset.o pngset.pic.o: png.h pngconf.h
+pngget.o pngget.pic.o: png.h pngconf.h
+pngread.o pngread.pic.o: png.h pngconf.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h
+pngpread.o pngpread.pic.o: png.h pngconf.h
+
+pngtest.o: png.h pngconf.h
diff --git a/scripts/makefile.gcmmx b/scripts/makefile.gcmmx
index 731b670..86e9378 100644
--- a/scripts/makefile.gcmmx
+++ b/scripts/makefile.gcmmx
@@ -15,7 +15,7 @@
LIBNAME = libpng12
PNGMAJ = 0
-PNGMIN = 1.2.8rc2
+PNGMIN = 1.2.8rc3
PNGVER = $(PNGMAJ).$(PNGMIN)
CC=gcc
diff --git a/scripts/makefile.hp64 b/scripts/makefile.hp64
index fdb599a..5e88ed6 100644
--- a/scripts/makefile.hp64
+++ b/scripts/makefile.hp64
@@ -27,7 +27,7 @@
RANLIB=ranlib
PNGMAJ = 0
-PNGMIN = 1.2.8rc2
+PNGMIN = 1.2.8rc3
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng12
diff --git a/scripts/makefile.hpgcc b/scripts/makefile.hpgcc
index e267eb7..df8c56c 100644
--- a/scripts/makefile.hpgcc
+++ b/scripts/makefile.hpgcc
@@ -41,7 +41,7 @@
#RANLIB=echo
PNGMAJ = 0
-PNGMIN = 1.2.8rc2
+PNGMIN = 1.2.8rc3
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng12
diff --git a/scripts/makefile.hpux b/scripts/makefile.hpux
index f792992..0801c64 100644
--- a/scripts/makefile.hpux
+++ b/scripts/makefile.hpux
@@ -24,7 +24,7 @@
RANLIB=ranlib
PNGMAJ = 0
-PNGMIN = 1.2.8rc2
+PNGMIN = 1.2.8rc3
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng12
diff --git a/scripts/makefile.linux b/scripts/makefile.linux
index 3e62ae2..46a6c47 100644
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -5,7 +5,7 @@
LIBNAME = libpng12
PNGMAJ = 0
-PNGMIN = 1.2.8rc2
+PNGMIN = 1.2.8rc3
PNGVER = $(PNGMAJ).$(PNGMIN)
CC=gcc
diff --git a/scripts/makefile.ne12bsd b/scripts/makefile.ne12bsd
index ac230fb..0320062 100644
--- a/scripts/makefile.ne12bsd
+++ b/scripts/makefile.ne12bsd
@@ -13,7 +13,7 @@
LIB= png12
SHLIB_MAJOR= 0
-SHLIB_MINOR= 1.2.8rc2
+SHLIB_MINOR= 1.2.8rc3
SRCS= pnggccrd.c 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
diff --git a/scripts/makefile.netbsd b/scripts/makefile.netbsd
index 6115ea6..98b9747 100644
--- a/scripts/makefile.netbsd
+++ b/scripts/makefile.netbsd
@@ -13,7 +13,7 @@
LIB= png
SHLIB_MAJOR= 3
-SHLIB_MINOR= 1.2.8rc2
+SHLIB_MINOR= 1.2.8rc3
SRCS= pnggccrd.c 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
diff --git a/scripts/makefile.openbsd b/scripts/makefile.openbsd
index 9677050..60f2a51 100644
--- a/scripts/makefile.openbsd
+++ b/scripts/makefile.openbsd
@@ -7,7 +7,7 @@
MANDIR= ${PREFIX}/man/cat
SHLIB_MAJOR= 0
-SHLIB_MINOR= 1.2.8rc2
+SHLIB_MINOR= 1.2.8rc3
LIB= png
SRCS= png.c pngerror.c pnggccrd.c pngget.c pngmem.c pngpread.c \
diff --git a/scripts/makefile.sco b/scripts/makefile.sco
index 3d61e8f..4aa341b 100644
--- a/scripts/makefile.sco
+++ b/scripts/makefile.sco
@@ -24,7 +24,7 @@
RANLIB=echo
PNGMAJ = 0
-PNGMIN = 1.2.8rc2
+PNGMIN = 1.2.8rc3
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng12
diff --git a/scripts/makefile.sggcc b/scripts/makefile.sggcc
index 49a47e4..10c41ae 100644
--- a/scripts/makefile.sggcc
+++ b/scripts/makefile.sggcc
@@ -18,7 +18,7 @@
LIBNAME=libpng12
PNGMAJ = 0
-PNGMIN = 1.2.8rc2
+PNGMIN = 1.2.8rc3
PNGVER = $(PNGMAJ).$(PNGMIN)
CC=gcc
diff --git a/scripts/makefile.sgi b/scripts/makefile.sgi
index 8317ec0..bf1abea 100644
--- a/scripts/makefile.sgi
+++ b/scripts/makefile.sgi
@@ -5,7 +5,7 @@
LIBNAME=libpng12
PNGMAJ = 0
-PNGMIN = 1.2.8rc2
+PNGMIN = 1.2.8rc3
PNGVER = $(PNGMAJ).$(PNGMIN)
# Where make install puts libpng.a, libpng12.so, and libpng12/png.h
diff --git a/scripts/makefile.so9 b/scripts/makefile.so9
index a4a2ef4..c74a9b0 100644
--- a/scripts/makefile.so9
+++ b/scripts/makefile.so9
@@ -34,7 +34,7 @@
RANLIB=echo
PNGMAJ = 0
-PNGMIN = 1.2.8rc2
+PNGMIN = 1.2.8rc3
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng12
diff --git a/scripts/makefile.solaris b/scripts/makefile.solaris
index ecbcf99..eee14cf 100644
--- a/scripts/makefile.solaris
+++ b/scripts/makefile.solaris
@@ -30,7 +30,7 @@
RANLIB=echo
PNGMAJ = 0
-PNGMIN = 1.2.8rc2
+PNGMIN = 1.2.8rc3
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng12
diff --git a/scripts/pngos2.def b/scripts/pngos2.def
index 59ae314..ca17660 100644
--- a/scripts/pngos2.def
+++ b/scripts/pngos2.def
@@ -2,7 +2,7 @@
; PNG.LIB module definition file for OS/2
;----------------------------------------
-; Version 1.2.8rc2
+; Version 1.2.8rc3
LIBRARY PNG
DESCRIPTION "PNG image compression library for OS/2"
diff --git a/scripts/pngw32.def b/scripts/pngw32.def
index 1c3ddfd..7acf13c 100644
--- a/scripts/pngw32.def
+++ b/scripts/pngw32.def
@@ -6,7 +6,7 @@
DESCRIPTION "PNG image compression library for Windows"
EXPORTS
-;Version 1.2.8rc2
+;Version 1.2.8rc3
png_build_grayscale_palette @1
png_check_sig @2
png_chunk_error @3