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[libpng15] Imported from libpng-1.5.16beta06.tar

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This commit is contained in:
Glenn Randers-Pehrson 2013-05-12 12:01:18 -05:00
parent ae8174d9a3
commit bc92887b2d
54 changed files with 1264 additions and 690 deletions
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79
ANNOUNCE
View File

@ -1,5 +1,5 @@
Libpng 1.5.15beta06 - February 22, 2013
Libpng 1.5.16beta06 - May 12, 2013
This is not intended to be a public release. It will be replaced
within a few weeks by a public version or by another test version.
@ -9,58 +9,59 @@ Files available for download:
Source files with LF line endings (for Unix/Linux) and with a
"configure" script
1.5.15beta06.tar.xz (LZMA-compressed, recommended)
1.5.15beta06.tar.gz
1.5.15beta06.tar.bz2
1.5.16beta06.tar.xz (LZMA-compressed, recommended)
1.5.16beta06.tar.gz
1.5.16beta06.tar.bz2
Source files with CRLF line endings (for Windows), without the
"configure" script
lp1515b06.7z (LZMA-compressed, recommended)
lp1515b06.zip
lp1516b06.7z (LZMA-compressed, recommended)
lp1516b06.zip
Other information:
1.5.15beta06-README.txt
1.5.15beta06-LICENSE.txt
1.5.16beta06-README.txt
1.5.16beta06-LICENSE.txt
Changes since the last public release (1.5.14):
Changes since the last public release (1.5.15):
Version 1.5.15beta01 [February 4, 2013]
Enabled renaming of the extern (but not DLL exported) ARM filter functions.
Also enabled inclusion of pngpriv.h in non-C files by preventing C/C++
specific definitions if PNG_VERSION_INFO_ONLY is defined.
Added png_get_palette_max() function.
Version 1.5.16beta01 [April 25, 2013]
Corrected a misplaced closing bracket in contrib/libtests/pngvalid.c
(Flavio Medeiros).
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.
Avoid a compiler warning about unused png_ptr in translate_gamma_flags()
Version 1.5.15beta02 [February 5, 2013]
Made a probably general fix for the preprocessing used to generate source
files. This change might make the check for a special C preprocessor
unnecessary, and it also eliminates the requirement for sed in the
configure build process.
Fix typo in Makefile.am, fix scripts/pnglibconf.mak and makefile.std
Rebuilt Makefile.in, configure, etc., with autoconf-2.69 and automake-1.13
Fix 'setting' handling in options.awk and fixed palette_max API
Version 1.5.16beta02 [April 26, 2013]
Revise pngtest.c to skip tests of unsupported features.
Regenerated configure files.
Version 1.5.15beta03 [February 7, 2013]
Remove SUN OS cc -E workround - no longer required
Turn serial tests back on (recently turned off by autotools upgrade).
Version 1.5.16beta03 [April 26, 2013]
Test for 'arm*' not just 'arm' in the host_cpu configure variable.
Version 1.5.15beta04 [February 15, 2013]
Enclosed the new png_get_palette_max in #ifdef PNG_GET_PALETTE_MAX_SUPPORTED
block, and revised pnglibconf.h and pnglibconf.h.prebuilt accordingly.
Version 1.5.16beta04 [May 1, 2013]
Expanded manual paragraph about writing private chunks, particularly
the need to call png_set_keep_unknown_chunks() when writing them.
Version 1.5.15beta05 [February 17, 2013]
Use approved/supported Android method to check for NEON, use Linux/POSIX
1003.1 API to check /proc/self/auxv avoiding buffer allocation and other
library calls.
Fixed a race condition in the creation of the build 'scripts' directory
while building with a parallel make.
Use parentheses more consistently in "#if defined(MACRO)" tests.
Version 1.5.16beta05 [May 9, 2013]
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.
Version 1.5.15beta06 [February 22, 2013]
Fixed PNG_ALIGN(ED)_MEMORY and add ability to turn off ARM_NEON
runtime checks
Updated INSTALL.
Version 1.5.16beta06 [May 12, 2013]
Allow contrib/pnminus/pnm2png.c to compile without WRITE_INVERT and WRITE_PACK
supported (writes error message that it can't read P1 or P4 PBM files).
Revised contrib/pngminim/*/makefile to separate CPPFLAGS and CPFLAGS, and
to generate pnglibconf.h with the right zlib header files.
Ported contrib/pngminus/pnm2png.c changes back from libpng-1.6.3beta06,
to use unsigned long, not png_uint_32 arguments to sscanf().
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

93
CHANGES
View File

@ -4018,13 +4018,94 @@ Version 1.5.15beta05 [February 17, 2013]
Version 1.5.15beta06 [February 22, 2013]
Fixed PNG_ALIGN(ED)_MEMORY and add ability to turn off ARM_NEON
runtime checks
Updated INSTALL.
Updated the INSTALL document.
===========================================================================
NOTICE November 17, 2012:
The location of the git repository at SourceForge has changed.
Visit http://libpng.sf.net/ for details.
===========================================================================
Version 1.5.15beta07 [February 27, 2013]
Revised INSTALL to recommend using CPPFLAGS instead of INCLUDES.
Revised scripts/makefile.freebsd to respect ZLIBLIB and ZLIBINC.
Revised scripts/dfn.awk to work with the buggy MSYS awk that has trouble
with CRLF line endings.
Version 1.5.15beta08 [March 5, 2013]
Avoid a possible memory leak in contrib/gregbook/readpng.c
Made the _SUPPORTED macro definitions consistent. The change made in
libpng15 to #define *_SUPPORTED 1, to match the use of -D*_SUPPORTED
(which means -D*_SUPPORTED=1) and avoid compiler warnings from GCC was made
inconsistently and causes problems as a result, also some additions in
pnglibconf.h.prebuilt were inconsistent (omitting the 1). This changes 1.5
back to the scheme used both before (1.4) and after (1.6). This might cause
some build scripts to issue warnings, and might, in the extreme, cause some
applications to fail (but they would fail anyway against 1.6). It seems
safer to go for consistency, given the change in 1.6, not correctness here,
particularly as 'make check' currently warns anyway on the symbols.dfn check
because of the inconsistencies.
Corrected Android builds and corrected libpng.vers with symbol
prefixing This adds an API to set optimization options externally,
providing an alternative and general solution for the non-portable
run-time tests used by the ARM Neon code. It also makes those tests
compile and link on Android.
The order of settings vs options in pnglibconf.h is reversed to allow
settings to depend on options and options can now set (or override) the
defaults for settings.
Version 1.5.15beta09 [March 13, 2013]
Fixed CMakelists.txt to allow building a single variant of the library
(Claudio Bley):
Introduced a PNG_LIB_TARGETS variable that lists all activated library
targets. It is an error if this variable ends up empty, ie. you have
to build at least one library variant.
Made the *_COPY targets only depend on library targets actually being build.
Use PNG_LIB_TARGETS to unify a code path.
Changed the CREATE_SYMLINK macro to expect the full path to a file as the
first argument. When symlinking the filename component of that path is
determined and used as the link target.
Use copy_if_different in the CREATE_SYMLINK macro.
Eliminated two warnings from the Intel C compiler. The warnings are
technically valid, although a reasonable treatment of division would
show it to be incorrect.
Version 1.5.15rc01 [March 21, 2013]
No changes.
Version 1.5.15 [March 28, 2013]
No changes.
Version 1.5.16beta01 [April 25, 2013]
Corrected a misplaced closing bracket in contrib/libtests/pngvalid.c
(Flavio Medeiros).
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.
Avoid a compiler warning about unused png_ptr in translate_gamma_flags()
Version 1.5.16beta02 [April 26, 2013]
Revise pngtest.c to skip tests of unsupported features.
Regenerated configure files.
Version 1.5.16beta03 [April 26, 2013]
Test for 'arm*' not just 'arm' in the host_cpu configure variable.
Version 1.5.16beta04 [May 1, 2013]
Expanded manual paragraph about writing private chunks, particularly
the need to call png_set_keep_unknown_chunks() when writing them.
Version 1.5.16beta05 [May 9, 2013]
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.
Version 1.5.16beta06 [May 12, 2013]
Allow contrib/pnminus/pnm2png.c to compile without WRITE_INVERT and WRITE_PACK
supported (writes error message that it can't read P1 or P4 PBM files).
Revised contrib/pngminim/*/makefile to separate CPPFLAGS and CPFLAGS, and
to generate pnglibconf.h with the right zlib header files.
Ported contrib/pngminus/pnm2png.c changes back from libpng-1.6.3beta06,
to use unsigned long, not png_uint_32 arguments to sscanf().
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

50
CMakeLists.txt
View File

@ -35,7 +35,7 @@ enable_testing()
set(PNGLIB_MAJOR 1)
set(PNGLIB_MINOR 5)
set(PNGLIB_RELEASE 15)
set(PNGLIB_RELEASE 16)
set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR})
set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE})
@ -138,8 +138,11 @@ endif()
# NOW BUILD OUR TARGET
include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${ZLIB_INCLUDE_DIR})
unset(PNG_LIB_TARGETS)
if(PNG_SHARED)
add_library(${PNG_LIB_NAME} SHARED ${libpng_sources})
set(PNG_LIB_TARGETS ${PNG_LIB_NAME})
if(MSVC)
# msvc does not append 'lib' - do it here to have consistent name
set_target_properties(${PNG_LIB_NAME} PROPERTIES PREFIX "lib")
@ -152,6 +155,7 @@ if(PNG_STATIC)
# does not work without changing name
set(PNG_LIB_NAME_STATIC ${PNG_LIB_NAME}_static)
add_library(${PNG_LIB_NAME_STATIC} STATIC ${libpng_sources})
list(APPEND PNG_LIB_TARGETS ${PNG_LIB_NAME_STATIC})
if(MSVC)
# msvc does not append 'lib' - do it here to have consistent name
set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES PREFIX "lib")
@ -159,6 +163,12 @@ if(PNG_STATIC)
target_link_libraries(${PNG_LIB_NAME_STATIC} ${ZLIB_LIBRARY} ${M_LIBRARY})
endif()
if(NOT PNG_LIB_TARGETS)
message(SEND_ERROR
"No library variant selected to build. "
"Please enable at least one of the following options: PNG_STATIC, PNG_SHARED")
endif()
if(PNG_SHARED AND WIN32)
set_target_properties(${PNG_LIB_NAME} PROPERTIES DEFINE_SYMBOL PNG_BUILD_DLL)
endif()
@ -187,14 +197,15 @@ macro(CREATE_SYMLINK SRC_FILE 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 ${CMAKE_CURRENT_BINARY_DIR}/${SRC_FILE} ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE}
COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_BINARY_DIR}/${SRC_FILE} ${CMAKE_CURRENT_BINARY_DIR}/${DEST_FILE}
DEPENDS ${PNG_LIB_NAME} ${PNG_LIB_NAME_STATIC}
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)
execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink ${SRC_FILE} ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE} WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink ${SRC_FILE} ${DEST_FILE} WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
get_filename_component(LINK_TARGET "${SRC_FILE}" NAME)
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 ${CMAKE_CURRENT_BINARY_DIR})
endif(WIN32 AND NOT CYGWIN AND NOT MSYS)
endmacro()
@ -225,7 +236,7 @@ endif(NOT WIN32 OR CYGWIN OR MINGW)
# SET UP LINKS
if(PNG_SHARED)
set_target_properties(${PNG_LIB_NAME} PROPERTIES
# VERSION 15.${PNGLIB_RELEASE}.1.5.15beta06
# VERSION 15.${PNGLIB_RELEASE}.1.5.16beta06
VERSION 15.${PNGLIB_RELEASE}.0
SOVERSION 15
CLEAN_DIRECT_OUTPUT 1)
@ -252,40 +263,33 @@ endif()
# INSTALL
if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL )
if(PNG_SHARED)
install(TARGETS ${PNG_LIB_NAME}
${PNG_EXPORT_RULE}
RUNTIME DESTINATION bin
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
install(TARGETS ${PNG_LIB_TARGETS}
${PNG_EXPORT_RULE}
RUNTIME DESTINATION bin
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
if(PNG_SHARED)
# Create a symlink for libpng.dll.a => libpng15.dll.a on Cygwin
if(CYGWIN OR MINGW)
get_target_property(BUILD_TARGET_LOCATION ${PNG_LIB_NAME} LOCATION_${CMAKE_BUILD_TYPE})
get_filename_component(BUILD_TARGET_FILE ${BUILD_TARGET_LOCATION} NAME)
CREATE_SYMLINK(${BUILD_TARGET_FILE} libpng${CMAKE_IMPORT_LIBRARY_SUFFIX})
CREATE_SYMLINK(${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 ${PNG_LIB_NAME} LOCATION_${CMAKE_BUILD_TYPE})
get_filename_component(BUILD_TARGET_FILE ${BUILD_TARGET_LOCATION} NAME)
CREATE_SYMLINK(${BUILD_TARGET_FILE} libpng${CMAKE_SHARED_LIBRARY_SUFFIX})
CREATE_SYMLINK(${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)
install(TARGETS ${PNG_LIB_NAME_STATIC}
${PNG_EXPORT_RULE}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
if(NOT WIN32 OR CYGWIN OR MINGW)
get_target_property(BUILD_TARGET_LOCATION ${PNG_LIB_NAME_STATIC} LOCATION_${CMAKE_BUILD_TYPE})
get_filename_component(BUILD_TARGET_FILE ${BUILD_TARGET_LOCATION} NAME)
CREATE_SYMLINK(${BUILD_TARGET_FILE} libpng${CMAKE_STATIC_LIBRARY_SUFFIX})
CREATE_SYMLINK(${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)

11
INSTALL
View File

@ -46,15 +46,14 @@ to have access to the zlib.h and zconf.h include files that
correspond to the version of zlib that's installed.
If you wish to test with a particular zlib that is not first in the
standard library search path, put ZLIBLIB, ZLIBINC, INCLUDES, LDFLAGS,
LIBS, and LD_LIBRARY_PATH in your environment before running "make test"
standard library search path, put ZLIBLIB, ZLIBINC, CPPFLAGS, LDFLAGS,
and LD_LIBRARY_PATH in your environment before running "make test"
or "make distcheck":
ZLIBLIB=/path/to/lib export ZLIBLIB
ZLIBINC=/path/to/include export ZLIBINC
INCLUDES="-I$ZLIBINC" export INCLUDES
CPPFLAGS="-I$ZLIBINC" export CPPFLAGS
LDFLAGS="-L$ZLIBLIB" export LDFLAGS
LIBS=$ZLIBLIB/libz.a export LIBS
LD_LIBRARY_PATH="$ZLIBLIB:$LD_LIBRARY_PATH" export LD_LIBRARY_PATH
If you are using one of the makefile scripts, put ZLIBLIB and ZLIBINC
@ -67,8 +66,8 @@ If you want to use "cmake" (see www.cmake.org), type
make install
You can rename the directories that you downloaded (they
might be called "libpng-x.y.z" or "libpngNN" and "zlib-1.2.5"
or "zlib125") so that you have directories called "zlib" and "libpng".
might be called "libpng-x.y.z" or "libpngNN" and "zlib-1.2.7"
or "zlib127") so that you have directories called "zlib" and "libpng".
Your directory structure should look like this:

4
LICENSE
View File

@ -10,7 +10,7 @@ this sentence.
This code is released under the libpng license.
libpng versions 1.2.6, August 15, 2004, through 1.5.15beta06, February 22, 2013, are
libpng versions 1.2.6, August 15, 2004, through 1.5.16beta06, May 12, 2013, are
Copyright (c) 2004, 2006-2012 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 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
February 22, 2013
May 12, 2013

2
Makefile.am
View File

@ -174,7 +174,7 @@ scripts/pnglibconf.dfn: scripts/pnglibconf.dfa scripts/options.awk pngconf.h
rm -f $@ dfn?.out
test -z "$(CPPFLAGS)"
echo "com @PNGLIB_VERSION@ STANDARD API DEFINITION" |\
$(AWK) -f ${srcdir}/scripts/options.awk out=dfn1.out logunsupported=1
$(AWK) -f ${srcdir}/scripts/options.awk out=dfn1.out logunsupported=1\
version=search ${srcdir}/pngconf.h -\
${srcdir}/scripts/pnglibconf.dfa 1>&2
$(AWK) -f ${srcdir}/scripts/options.awk out=dfn2.out dfn1.out 1>&2

3
Makefile.in
View File

@ -288,7 +288,6 @@ distcleancheck_listfiles = find . -type f -print
pkgincludedir = $(includedir)/$(PNGLIB_BASENAME)
ACLOCAL = @ACLOCAL@
AMTAR = @AMTAR@
AM_CCASFLAGS = @AM_CCASFLAGS@
AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
AR = @AR@
AS = @AS@
@ -1526,7 +1525,7 @@ scripts/pnglibconf.dfn: scripts/pnglibconf.dfa scripts/options.awk pngconf.h
rm -f $@ dfn?.out
test -z "$(CPPFLAGS)"
echo "com @PNGLIB_VERSION@ STANDARD API DEFINITION" |\
$(AWK) -f ${srcdir}/scripts/options.awk out=dfn1.out logunsupported=1
$(AWK) -f ${srcdir}/scripts/options.awk out=dfn1.out logunsupported=1\
version=search ${srcdir}/pngconf.h -\
${srcdir}/scripts/pnglibconf.dfa 1>&2
$(AWK) -f ${srcdir}/scripts/options.awk out=dfn2.out dfn1.out 1>&2

2
README
View File

@ -1,4 +1,4 @@
README for libpng version 1.5.15beta06 - February 22, 2013 (shared library 15.0)
README for libpng version 1.5.16beta06 - May 12, 2013 (shared library 15.0)
See the note about version numbers near the top of png.h
See INSTALL for instructions on how to install libpng.

52
arm/arm_init.c
View File

@ -3,7 +3,7 @@
*
* Copyright (c) 2013 Glenn Randers-Pehrson
* Written by Mans Rullgard, 2011.
* Last changed in libpng 1.5.15 [%RDATE%]
* Last changed in libpng 1.5.16 [(PENDING RELEASE)]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
@ -16,16 +16,7 @@
#include "../pngpriv.h"
#if defined(PNG_FILTER_OPTIMIZATIONS) && defined(__arm__) && \
defined(__ARM_NEON__)
/* __arm__ is defined by GCC, MSVC defines _M_ARM to the ARM version number,
* Andoid intends to define __ANDROID__, however there are bugs in their
* toolchain; use -D__ANDROID__ to work round this.
*
* __ARM_NEON__ is used to ensure that the compiler has the appropriate ARM
* NEON support
*/
#ifdef PNG_ARM_NEON_SUPPORTED
#ifdef PNG_ARM_NEON_CHECK_SUPPORTED /* Do run-time checks */
#include <signal.h> /* for sig_atomic_t */
@ -45,7 +36,8 @@ png_have_neon(png_structp png_ptr)
* implemented as below, therefore it is better to cache the result (these
* function calls may be slow!)
*/
return andoid_getCpuFamily() == ANDROID_CPU_FAMILY_ARM &&
PNG_UNUSED(png_ptr)
return android_getCpuFamily() == ANDROID_CPU_FAMILY_ARM &&
(android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_NEON) != 0;
}
#elif defined(__linux__)
@ -161,15 +153,39 @@ png_have_neon(png_structp png_ptr)
void
png_init_filter_functions_neon(png_structp pp, unsigned int bpp)
{
#ifdef PNG_ARM_NEON_API_SUPPORTED
switch ((pp->options >> PNG_ARM_NEON) & 3)
{
case PNG_OPTION_UNSET:
/* Allow the run-time check to execute if it has been enabled -
* thus both API and CHECK can be turned on. If it isn't supported
* this case will fall through to the 'default' below, which just
* returns.
*/
#endif /* PNG_ARM_NEON_API_SUPPORTED */
#ifdef PNG_ARM_NEON_CHECK_SUPPORTED
static volatile sig_atomic_t no_neon = -1; /* not checked */
{
static volatile sig_atomic_t no_neon = -1; /* not checked */
if (no_neon < 0)
no_neon = !png_have_neon(pp);
if (no_neon < 0)
no_neon = !png_have_neon(pp);
if (no_neon)
return;
if (no_neon)
return;
}
#ifdef PNG_ARM_NEON_API_SUPPORTED
break;
#endif
#endif /* PNG_ARM_NEON_CHECK_SUPPORTED */
#ifdef PNG_ARM_NEON_API_SUPPORTED
case PNG_OPTION_ON:
/* Option turned on */
break;
default: /* OFF or INVALID */
return;
}
#endif
/* IMPORTANT: any new external functions used here must be declared using
* PNG_INTERNAL_FUNCTION in ../pngpriv.h. This is required so that the
@ -200,4 +216,4 @@ png_init_filter_functions_neon(png_structp pp, unsigned int bpp)
png_read_filter_row_paeth4_neon;
}
}
#endif /* FILTER_OPTIMIZATIONS && __arm__ && __ARM_NEON__ */
#endif /* PNG_ARM_NEON_SUPPORTED */

12
arm/filter_neon.S
View File

@ -1,9 +1,9 @@
/* filter_neon.S - NEON optimised filter functions
*
* Copyright (c) 2011 Glenn Randers-Pehrson
* Copyright (c) 2013 Glenn Randers-Pehrson
* Written by Mans Rullgard, 2011.
* Last changed in libpng 1.5.7 [December 15, 2011]
* Last changed in libpng 1.5.16 [(PENDING RELEASE)]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
@ -11,17 +11,17 @@
*/
/* This is required to get the symbol renames, which are #defines, and also
* includes the value of PNG_FILTER_OPTIMIZATIONS.
* includes the definition (or not) of PNG_ARM_NEON_SUPPORTED.
*/
#define PNG_VERSION_INFO_ONLY
#include "../pngpriv.h"
#if defined(PNG_FILTER_OPTIMIZATIONS) && defined(__arm__) && \
defined(__ARM_NEON__)
#if defined(__linux__) && defined(__ELF__)
.section .note.GNU-stack,"",%progbits /* mark stack as non-executable */
#endif
#ifdef PNG_ARM_NEON_SUPPORTED
#ifdef __ELF__
# define ELF
#else
@ -232,4 +232,4 @@ func png_read_filter_row_paeth3_neon, export=1
pop {r4,pc}
endfunc
#endif /* FILTER_OPTIMIZATIONS && __arm__ && __ARM_NEON__ */
#endif /* PNG_ARM_NEON_SUPPORTED */

15
config.h.in
View File

@ -73,14 +73,17 @@
/* Define to the version of this package. */
#undef PACKAGE_VERSION
/* Align row buffers */
#undef PNG_ALIGNED_MEMORY_SUPPORTED
/* Turn on ARM Neon optimizations at run-time */
#undef PNG_ARM_NEON_API_SUPPORTED
/* ARM NEON filter initialization function */
#undef PNG_FILTER_OPTIMIZATIONS
/* Check for ARM Neon support at run-time */
#undef PNG_ARM_NEON_CHECK_SUPPORTED
/* Turn off run-time checking for ARM NEON support */
#undef PNG_NO_ARM_NEON_CHECK
/* Enable ARM Neon optimizations */
#undef PNG_ARM_NEON_SUPPORTED
/* Disable ARM Neon optimizations */
#undef PNG_NO_ARM_NEON
/* Define to 1 if you have the ANSI C header files. */
#undef STDC_HEADERS

84
configure vendored
View File

@ -1,6 +1,6 @@
#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.69 for libpng 1.5.15beta06.
# Generated by GNU Autoconf 2.69 for libpng 1.5.16beta06.
#
# Report bugs to <png-mng-implement@lists.sourceforge.net>.
#
@ -590,8 +590,8 @@ MAKEFLAGS=
# Identity of this package.
PACKAGE_NAME='libpng'
PACKAGE_TARNAME='libpng'
PACKAGE_VERSION='1.5.15beta06'
PACKAGE_STRING='libpng 1.5.15beta06'
PACKAGE_VERSION='1.5.16beta06'
PACKAGE_STRING='libpng 1.5.16beta06'
PACKAGE_BUGREPORT='png-mng-implement@lists.sourceforge.net'
PACKAGE_URL=''
@ -637,7 +637,6 @@ am__EXEEXT_TRUE
LTLIBOBJS
PNG_ARM_NEON_FALSE
PNG_ARM_NEON_TRUE
AM_CCASFLAGS
binconfigs
pkgconfigdir
PNGLIB_RELEASE
@ -1343,7 +1342,7 @@ if test "$ac_init_help" = "long"; then
# 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 1.5.15beta06 to adapt to many kinds of systems.
\`configure' configures libpng 1.5.16beta06 to adapt to many kinds of systems.
Usage: $0 [OPTION]... [VAR=VALUE]...
@ -1413,7 +1412,7 @@ fi
if test -n "$ac_init_help"; then
case $ac_init_help in
short | recursive ) echo "Configuration of libpng 1.5.15beta06:";;
short | recursive ) echo "Configuration of libpng 1.5.16beta06:";;
esac
cat <<\_ACEOF
@ -1435,8 +1434,12 @@ Optional Features:
--enable-fast-install[=PKGS]
optimize for fast installation [default=yes]
--disable-libtool-lock avoid locking (might break parallel builds)
--enable-arm-neon Enable ARM NEON optimizations: use 'always' to turn
off run-time checks
--enable-arm-neon Enable ARM NEON optimizations: =no/off, check, api,
yes/on: no/off: disable the optimizations; check:
use internal checking code (deprecated and poorly
supported); api: disable by default, enable by a
call to png_set_option; yes/on: turn on
unconditionally.
Optional Packages:
--with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
@ -1530,7 +1533,7 @@ fi
test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then
cat <<\_ACEOF
libpng configure 1.5.15beta06
libpng configure 1.5.16beta06
generated by GNU Autoconf 2.69
Copyright (C) 2012 Free Software Foundation, Inc.
@ -1953,7 +1956,7 @@ cat >config.log <<_ACEOF
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 1.5.15beta06, which was
It was created by libpng $as_me 1.5.16beta06, which was
generated by GNU Autoconf 2.69. Invocation command line was
$ $0 $@
@ -2816,7 +2819,7 @@ fi
# Define the identity of the package.
PACKAGE='libpng'
VERSION='1.5.15beta06'
VERSION='1.5.16beta06'
cat >>confdefs.h <<_ACEOF
@ -2886,10 +2889,10 @@ fi
PNGLIB_VERSION=1.5.15beta06
PNGLIB_VERSION=1.5.16beta06
PNGLIB_MAJOR=1
PNGLIB_MINOR=5
PNGLIB_RELEASE=15
PNGLIB_RELEASE=16
@ -12804,30 +12807,51 @@ fi
# Because GCC by default assembles code with an executable stack, even though it
# compiles C code with a non-executable stack, it is necessary to do a fixup
# here (this may by GCC specific)
AM_CCASFLAGS=-Wa,--noexecstack
# HOST SPECIFIC OPTIONS
# =====================
#
# ARM
# ===
#
# ARM NEON (SIMD) support.
# Check whether --enable-arm-neon was given.
if test "${enable_arm_neon+set}" = set; then :
enableval=$enable_arm_neon; if test "${enableval}" = "yes" -o "${enableval}" = "always"; then
enableval=$enable_arm_neon; case "$enableval" in
no|off)
# disable the default enabling on __ARM_NEON__ systems:
$as_echo "#define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_neon" >>confdefs.h
$as_echo "#define PNG_NO_ARM_NEON /**/" >>confdefs.h
# Prevent inclusion of the assembler files below:
enable_arm_neon=no;;
check)
$as_echo "#define PNG_ALIGNED_MEMORY_SUPPORTED 1" >>confdefs.h
$as_echo "#define PNG_ARM_NEON_CHECK_SUPPORTED /**/" >>confdefs.h
;;
api)
if test "${enableval}" = "always"; then
$as_echo "#define PNG_ARM_NEON_API_SUPPORTED /**/" >>confdefs.h
;;
yes|on)
$as_echo "#define PNG_NO_ARM_NEON_CHECK /**/" >>confdefs.h
fi
fi
$as_echo "#define PNG_ARM_NEON_SUPPORTED /**/" >>confdefs.h
;;
*)
as_fn_error $? "--enable-arm-neon=${enable_arm_neon}: invalid value" "$LINENO" 5
esac
fi
if test "${enable_arm_neon:-no}" != "no"; then
# Add ARM specific files to all builds where the host_cpu is arm ('arm*') or
# where ARM optimizations were explicitly requested (this allows a fallback if a
# future host CPU does not match 'arm*')
if test "$enable_arm_neon" != 'no' &&
case "$host_cpu" in
arm*) :;;
*) test "$enable_arm_neon" != '';;
esac; then
PNG_ARM_NEON_TRUE=
PNG_ARM_NEON_FALSE='#'
else
@ -12836,7 +12860,7 @@ else
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: Extra options for compiler: $PNG_COPTS" >&5
{ $as_echo "$as_me:${as_lineno-$LINENO}: Extra options for compiler: $PNG_COPTS" >&5
$as_echo "$as_me: Extra options for compiler: $PNG_COPTS" >&6;}
# Config files, substituting as above
@ -13395,7 +13419,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
# 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 1.5.15beta06, which was
This file was extended by libpng $as_me 1.5.16beta06, which was
generated by GNU Autoconf 2.69. Invocation command line was
CONFIG_FILES = $CONFIG_FILES
@ -13461,7 +13485,7 @@ _ACEOF
cat >>$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 1.5.15beta06
libpng config.status 1.5.16beta06
configured by $0, generated by GNU Autoconf 2.69,
with options \\"\$ac_cs_config\\"

66
configure.ac
View File

@ -18,15 +18,15 @@ AC_PREREQ(2.59)
dnl Version number stuff here:
AC_INIT([libpng], [1.5.15beta06], [png-mng-implement@lists.sourceforge.net])
AC_INIT([libpng], [1.5.16beta06], [png-mng-implement@lists.sourceforge.net])
AM_INIT_AUTOMAKE([serial-tests])
dnl stop configure from automagically running automake
AM_MAINTAINER_MODE
PNGLIB_VERSION=1.5.15beta06
PNGLIB_VERSION=1.5.16beta06
PNGLIB_MAJOR=1
PNGLIB_MINOR=5
PNGLIB_RELEASE=15
PNGLIB_RELEASE=16
dnl End of version number stuff
@ -166,28 +166,52 @@ AC_ARG_WITH(binconfigs,
[binconfigs='${binconfigs}'])
AC_SUBST([binconfigs])
# Because GCC by default assembles code with an executable stack, even though it
# compiles C code with a non-executable stack, it is necessary to do a fixup
# here (this may by GCC specific)
AC_SUBST([AM_CCASFLAGS], [-Wa,--noexecstack])
# HOST SPECIFIC OPTIONS
# =====================
#
# ARM
# ===
#
# ARM NEON (SIMD) support.
AC_ARG_ENABLE([arm-neon],
AS_HELP_STRING([[[--enable-arm-neon]]],
[Enable ARM NEON optimizations: use 'always' to turn off run-time checks]),
[if test "${enableval}" = "yes" -o "${enableval}" = "always"; then
AC_DEFINE([PNG_FILTER_OPTIMIZATIONS],
[png_init_filter_functions_neon],
[ARM NEON filter initialization function])
AC_DEFINE([PNG_ALIGNED_MEMORY_SUPPORTED], [1],
[Align row buffers])
if test "${enableval}" = "always"; then
AC_DEFINE([PNG_NO_ARM_NEON_CHECK], [],
[Turn off run-time checking for ARM NEON support])
fi
fi])
AM_CONDITIONAL([PNG_ARM_NEON], [test "${enable_arm_neon:-no}" != "no"])
[Enable ARM NEON optimizations: =no/off, check, api, yes/on:]
[no/off: disable the optimizations; check: use internal checking code]
[(deprecated and poorly supported); api: disable by default, enable by]
[a call to png_set_option; yes/on: turn on unconditionally.]),
[case "$enableval" in
no|off)
# disable the default enabling on __ARM_NEON__ systems:
AC_DEFINE([PNG_NO_ARM_NEON], [],
[Disable ARM Neon optimizations])
# Prevent inclusion of the assembler files below:
enable_arm_neon=no;;
check)
AC_DEFINE([PNG_ARM_NEON_CHECK_SUPPORTED], [],
[Check for ARM Neon support at run-time]);;
api)
AC_DEFINE([PNG_ARM_NEON_API_SUPPORTED], [],
[Turn on ARM Neon optimizations at run-time]);;
yes|on)
AC_DEFINE([PNG_ARM_NEON_SUPPORTED], [],
[Enable ARM Neon optimizations]);;
*)
AC_MSG_ERROR([--enable-arm-neon=${enable_arm_neon}: invalid value])
esac])
# Add ARM specific files to all builds where the host_cpu is arm ('arm*') or
# where ARM optimizations were explicitly requested (this allows a fallback if a
# future host CPU does not match 'arm*')
AM_CONDITIONAL([PNG_ARM_NEON],
[test "$enable_arm_neon" != 'no' &&
case "$host_cpu" in
arm*) :;;
*) test "$enable_arm_neon" != '';;
esac])
AC_MSG_NOTICE([[Extra options for compiler: $PNG_COPTS]])
AC_MSG_NOTICE([[Extra options for compiler: $PNG_COPTS]])
# Config files, substituting as above
AC_CONFIG_FILES([Makefile libpng.pc:libpng.pc.in])

4
contrib/gregbook/readpng.c
View File

@ -215,6 +215,10 @@ uch *readpng_get_image(double display_exponent, int *pChannels, ulg *pRowbytes)
* libpng function */
if (setjmp(png_jmpbuf(png_ptr))) {
free(image_data);
image_data = NULL;
free(row_pointers);
row_pointers = NULL;
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
return NULL;
}

12
contrib/libtests/pngvalid.c
View File

@ -1,7 +1,7 @@
/* pngvalid.c - validate libpng by constructing then reading png files.
*
* Last changed in libpng 1.5.14 [%RDATE%]
* Last changed in libpng 1.5.15 [March 28, 2013]
* Copyright (c) 2013 Glenn Randers-Pehrson
* Written by John Cunningham Bowler
*
@ -4599,9 +4599,13 @@ progressive_row(png_structp ppIn, png_bytep new_row, png_uint_32 y, int pass)
}
else
png_progressive_combine_row(pp, row, new_row);
} else if (dp->interlace_type == PNG_INTERLACE_ADAM7 &&
PNG_ROW_IN_INTERLACE_PASS(y, pass) &&
PNG_PASS_COLS(dp->w, pass) > 0)
#endif /* PNG_READ_INTERLACING_SUPPORTED */
}
#ifdef PNG_READ_INTERLACING_SUPPORTED
else if (dp->interlace_type == PNG_INTERLACE_ADAM7 &&
PNG_ROW_IN_INTERLACE_PASS(y, pass) &&
PNG_PASS_COLS(dp->w, pass) > 0)
png_error(pp, "missing row in progressive de-interlacing");
#endif /* PNG_READ_INTERLACING_SUPPORTED */
}

9
contrib/pngminim/decoder/makefile
View File

@ -14,7 +14,8 @@ LD=$(CC)
RM=rm -f
COPY=cp
CFLAGS=-DPNG_USER_CONFIG -DNO_GZCOMPRESS -DZ_SOLO -DNO_GZIP -I. -O1
CPPFLAGS=-I. -DPNG_USER_CONFIG -DNO_GZCOMPRESS -DZ_SOLO -DNO_GZIP
CFLAGS=-O1
C=.c
O=.o
@ -81,7 +82,7 @@ OBJS = $(PROGOBJS) $(PNGOBJS) $(ZOBJS)
# note: dependencies do not work on implicit rule lines
.c$(O):
$(CC) -c $(CFLAGS) $<
$(CC) $(CPPFLAGS) -c $(CFLAGS) $<
# dependencies
@ -95,12 +96,12 @@ pngm2pnm$(E): $(OBJS)
# The CPP_FLAGS setting causes pngusr.h to be included in
# both the build of pnglibconf.h and, subsequently, when
# building libpng itself.
$(PNGCONF): $(PNGSRC)/scripts/pnglibconf.mak\
$(PNGCONF): $(PNGSRC)/scripts/pnglibconf.mak $(ZH)\
$(PNGSRC)/scripts/pnglibconf.dfa \
$(PNGSRC)/scripts/options.awk pngusr.h pngusr.dfa
$(RM) pnglibconf.h pnglibconf.dfn
$(MAKE) $(MAKEFLAGS) -f $(PNGSRC)/scripts/pnglibconf.mak\
srcdir=$(PNGSRC) CPPFLAGS="-DPNG_USER_CONFIG"\
srcdir=$(PNGSRC) CPPFLAGS="-DPNG_USER_CONFIG -I."\
DFA_XTRA="pngusr.dfa" $@
clean:

9
contrib/pngminim/encoder/makefile
View File

@ -14,7 +14,8 @@ LD=$(CC)
RM=rm -f
COPY=cp
CFLAGS=-DPNG_USER_CONFIG -DZ_SOLO -DNO_GZIP -I. -O1
CPPFLAGS=-I. -DPNG_USER_CONFIG -DNO_GZCOMPRESS -DZ_SOLO -DNO_GZIP
CFLAGS=-O1
C=.c
O=.o
@ -80,7 +81,7 @@ OBJS = $(PROGOBJS) $(PNGOBJS) $(ZOBJS)
# implicit make rules -------------------------------------------------------
.c$(O):
$(CC) -c $(CFLAGS) $<
$(CC) $(CPPFLAGS) -c $(CFLAGS) $<
# dependencies
@ -94,12 +95,12 @@ pnm2pngm$(E): $(OBJS)
# The CPP_FLAGS setting causes pngusr.h to be included in
# both the build of pnglibconf.h and, subsequently, when
# building libpng itself.
$(PNGCONF): $(PNGSRC)/scripts/pnglibconf.mak\
$(PNGCONF): $(PNGSRC)/scripts/pnglibconf.mak $(ZH)\
$(PNGSRC)/scripts/pnglibconf.dfa \
$(PNGSRC)/scripts/options.awk pngusr.h pngusr.dfa
$(RM) pnglibconf.h pnglibconf.dfn
$(MAKE) $(MAKEFLAGS) -f $(PNGSRC)/scripts/pnglibconf.mak\
srcdir=$(PNGSRC) CPPFLAGS="-DPNG_USER_CONFIG"\
srcdir=$(PNGSRC) CPPFLAGS="-DPNG_USER_CONFIG -I."\
DFA_XTRA="pngusr.dfa" $@
clean:

5
contrib/pngminim/encoder/pngusr.dfa
View File

@ -1,6 +1,6 @@
# pngminim/encoder/pngusr.dfa
#
# Copyright (c) 2010-2011 Glenn Randers-Pehrson
# Copyright (c) 2010-2013 Glenn Randers-Pehrson
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
@ -13,6 +13,9 @@ everything = off
# 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
# You must choose fixed or floating point arithmetic:
# option FLOATING_POINT on

9
contrib/pngminim/preader/makefile
View File

@ -30,7 +30,8 @@ XLIB = -L/usr/X11R6/lib -lX11
#LIBS = $(XLIB)
LIBS = $(XLIB) -lm #platforms that need libm
CFLAGS=-DPNG_USER_CONFIG -DNO_GZCOMPRESS -DZ_SOLO -DNO_GZIP -I. $(XINC) -O1
CPPFLAGS=-I. $(XINC) -DPNG_USER_CONFIG -DNO_GZCOMPRESS -DZ_SOLO -DNO_GZIP
CFLAGS=-O1
C=.c
O=.o
@ -96,7 +97,7 @@ OBJS = $(PROGOBJS) $(PNGOBJS) $(ZOBJS)
# implicit make rules -------------------------------------------------------
.c$(O):
$(CC) -c $(CFLAGS) $<
$(CC) $(CPPFLAGS) -c $(CFLAGS) $<
# dependencies
@ -110,12 +111,12 @@ rpng2-x$(E): $(OBJS)
# The CPP_FLAGS setting causes pngusr.h to be included in
# both the build of pnglibconf.h and, subsequently, when
# building libpng itself.
$(PNGCONF): $(PNGSRC)/scripts/pnglibconf.mak\
$(PNGCONF): $(PNGSRC)/scripts/pnglibconf.mak $(ZH)\
$(PNGSRC)/scripts/pnglibconf.dfa \
$(PNGSRC)/scripts/options.awk pngusr.h pngusr.dfa
$(RM) pnglibconf.h pnglibconf.dfn
$(MAKE) $(MAKEFLAGS) -f $(PNGSRC)/scripts/pnglibconf.mak\
srcdir=$(PNGSRC) CPPFLAGS="-DPNG_USER_CONFIG"\
srcdir=$(PNGSRC) CPPFLAGS="-DPNG_USER_CONFIG -I."\
DFA_XTRA="pngusr.dfa" $@
clean:

154
contrib/pngminus/pnm2png.c
View File

@ -18,6 +18,7 @@
#include <mem.h>
#include <fcntl.h>
#endif
#include <zlib.h>
#ifndef BOOL
#define BOOL unsigned char
@ -197,6 +198,9 @@ BOOL pnm2png (FILE *pnm_file, FILE *png_file, FILE *alpha_file, BOOL interlace,
char height_token[16];
char maxval_token[16];
int color_type;
unsigned long ul_width=0, ul_alpha_width=0;
unsigned long ul_height=0, ul_alpha_height=0;
unsigned long ul_maxval=0;
png_uint_32 width, alpha_width;
png_uint_32 height, alpha_height;
png_uint_32 maxval;
@ -206,6 +210,9 @@ BOOL pnm2png (FILE *pnm_file, FILE *png_file, FILE *alpha_file, BOOL interlace,
int alpha_present;
int row, col;
BOOL raw, alpha_raw = FALSE;
#if defined(PNG_WRITE_INVERT_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED)
BOOL packed_bitmap = FALSE;
#endif
png_uint_32 tmp16;
int i;
@ -218,20 +225,36 @@ BOOL pnm2png (FILE *pnm_file, FILE *png_file, FILE *alpha_file, BOOL interlace,
}
else if ((type_token[1] == '1') || (type_token[1] == '4'))
{
#if defined(PNG_WRITE_INVERT_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED)
raw = (type_token[1] == '4');
color_type = PNG_COLOR_TYPE_GRAY;
get_token(pnm_file, width_token);
sscanf (width_token, "%lu", &ul_width);
width = (png_uint_32) ul_width;
get_token(pnm_file, height_token);
sscanf (height_token, "%lu", &ul_height);
height = (png_uint_32) ul_height;
bit_depth = 1;
packed_bitmap = TRUE;
#else
fprintf (stderr, "PNM2PNG built without PNG_WRITE_INVERT_SUPPORTED and \n");
fprintf (stderr, "PNG_WRITE_PACK_SUPPORTED can't read PBM (P1,P4) files\n");
#endif
}
else if ((type_token[1] == '2') || (type_token[1] == '5'))
{
raw = (type_token[1] == '5');
color_type = PNG_COLOR_TYPE_GRAY;
get_token(pnm_file, width_token);
sscanf (width_token, "%lu", &width);
sscanf (width_token, "%lu", &ul_width);
width = (png_uint_32) ul_width;
get_token(pnm_file, height_token);
sscanf (height_token, "%lu", &height);
sscanf (height_token, "%lu", &ul_height);
height = (png_uint_32) ul_height;
get_token(pnm_file, maxval_token);
sscanf (maxval_token, "%lu", &maxval);
sscanf (maxval_token, "%lu", &ul_maxval);
maxval = (png_uint_32) ul_maxval;
if (maxval <= 1)
bit_depth = 1;
else if (maxval <= 3)
@ -248,11 +271,14 @@ BOOL pnm2png (FILE *pnm_file, FILE *png_file, FILE *alpha_file, BOOL interlace,
raw = (type_token[1] == '6');
color_type = PNG_COLOR_TYPE_RGB;
get_token(pnm_file, width_token);
sscanf (width_token, "%lu", &width);
sscanf (width_token, "%lu", &ul_width);
width = (png_uint_32) ul_width;
get_token(pnm_file, height_token);
sscanf (height_token, "%lu", &height);
sscanf (height_token, "%lu", &ul_height);
height = (png_uint_32) ul_height;
get_token(pnm_file, maxval_token);
sscanf (maxval_token, "%lu", &maxval);
sscanf (maxval_token, "%lu", &ul_maxval);
maxval = (png_uint_32) ul_maxval;
if (maxval <= 1)
bit_depth = 1;
else if (maxval <= 3)
@ -287,15 +313,18 @@ BOOL pnm2png (FILE *pnm_file, FILE *png_file, FILE *alpha_file, BOOL interlace,
{
alpha_raw = (type_token[1] == '5');
get_token(alpha_file, width_token);
sscanf (width_token, "%lu", &alpha_width);
sscanf (width_token, "%lu", &ul_alpha_width);
alpha_width=(png_uint_32) ul_alpha_width;
if (alpha_width != width)
return FALSE;
get_token(alpha_file, height_token);
sscanf (height_token, "%lu", &alpha_height);
sscanf (height_token, "%lu", &ul_alpha_height);
alpha_height = (png_uint_32) ul_alpha_height;
if (alpha_height != height)
return FALSE;
get_token(alpha_file, maxval_token);
sscanf (maxval_token, "%lu", &maxval);
sscanf (maxval_token, "%lu", &ul_maxval);
maxval = (png_uint_32) ul_maxval;
if (maxval <= 1)
alpha_depth = 1;
else if (maxval <= 3)
@ -329,8 +358,14 @@ BOOL pnm2png (FILE *pnm_file, FILE *png_file, FILE *alpha_file, BOOL interlace,
alpha_present = (channels - 1) % 2;
/* row_bytes is the width x number of channels x (bit-depth / 8) */
row_bytes = width * channels * ((bit_depth <= 8) ? 1 : 2);
#if defined(PNG_WRITE_INVERT_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED)
if (packed_bitmap)
/* row data is as many bytes as can fit width x channels x bit_depth */
row_bytes = (width * channels * bit_depth + 7) / 8;
else
#endif
/* row_bytes is the width x number of channels x (bit-depth / 8) */
row_bytes = width * channels * ((bit_depth <= 8) ? 1 : 2);
if ((png_pixels = (png_byte *) malloc (row_bytes * height * sizeof (png_byte))) == NULL)
return FALSE;
@ -340,40 +375,48 @@ BOOL pnm2png (FILE *pnm_file, FILE *png_file, FILE *alpha_file, BOOL interlace,
for (row = 0; row < height; row++)
{
for (col = 0; col < width; col++)
#if defined(PNG_WRITE_INVERT_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED)
if (packed_bitmap) {
for (i = 0; i < row_bytes; i++)
/* png supports this format natively so no conversion is needed */
*pix_ptr++ = get_data (pnm_file, 8);
} else
#endif
{
for (i = 0; i < (channels - alpha_present); i++)
for (col = 0; col < width; col++)
{
if (raw)
*pix_ptr++ = get_data (pnm_file, bit_depth);
else
if (bit_depth <= 8)
*pix_ptr++ = get_value (pnm_file, bit_depth);
for (i = 0; i < (channels - alpha_present); i++)
{
if (raw)
*pix_ptr++ = get_data (pnm_file, bit_depth);
else
{
tmp16 = get_value (pnm_file, bit_depth);
*pix_ptr = (png_byte) ((tmp16 >> 8) & 0xFF);
pix_ptr++;
*pix_ptr = (png_byte) (tmp16 & 0xFF);
pix_ptr++;
}
}
if (bit_depth <= 8)
*pix_ptr++ = get_value (pnm_file, bit_depth);
else
{
tmp16 = get_value (pnm_file, bit_depth);
*pix_ptr = (png_byte) ((tmp16 >> 8) & 0xFF);
pix_ptr++;
*pix_ptr = (png_byte) (tmp16 & 0xFF);
pix_ptr++;
}
}
if (alpha) /* read alpha-channel from pgm file */
{
if (alpha_raw)
*pix_ptr++ = get_data (alpha_file, alpha_depth);
else
if (alpha_depth <= 8)
*pix_ptr++ = get_value (alpha_file, bit_depth);
if (alpha) /* read alpha-channel from pgm file */
{
if (alpha_raw)
*pix_ptr++ = get_data (alpha_file, alpha_depth);
else
{
tmp16 = get_value (alpha_file, bit_depth);
*pix_ptr++ = (png_byte) ((tmp16 >> 8) & 0xFF);
*pix_ptr++ = (png_byte) (tmp16 & 0xFF);
}
} /* if alpha */
if (alpha_depth <= 8)
*pix_ptr++ = get_value (alpha_file, bit_depth);
else
{
tmp16 = get_value (alpha_file, bit_depth);
*pix_ptr++ = (png_byte) ((tmp16 >> 8) & 0xFF);
*pix_ptr++ = (png_byte) (tmp16 & 0xFF);
}
} /* if alpha */
} /* if packed_bitmap */
} /* end for col */
} /* end for row */
@ -390,6 +433,14 @@ BOOL pnm2png (FILE *pnm_file, FILE *png_file, FILE *alpha_file, BOOL interlace,
return FALSE;
}
#if defined(PNG_WRITE_INVERT_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED)
if (packed_bitmap == TRUE)
{
png_set_packing (png_ptr);
png_set_invert_mono (png_ptr);
}
#endif
/* setjmp() must be called in every function that calls a PNG-reading libpng function */
if (setjmp (png_jmpbuf(png_ptr)))
{
@ -446,19 +497,32 @@ BOOL pnm2png (FILE *pnm_file, FILE *png_file, FILE *alpha_file, BOOL interlace,
void get_token(FILE *pnm_file, char *token)
{
int i = 0;
int ret;
/* remove white-space */
/* remove white-space and comment lines */
do
{
token[i] = (unsigned char) fgetc (pnm_file);
ret = fgetc(pnm_file);
if (ret == '#') {
/* the rest of this line is a comment */
do
{
ret = fgetc(pnm_file);
}
while ((ret != '\n') && (ret != '\r') && (ret != EOF));
}
if (ret == EOF) break;
token[i] = (unsigned char) ret;
}
while ((token[i] == '\n') || (token[i] == '\r') || (token[i] == ' '));
/* read string */
do
{
ret = fgetc(pnm_file);
if (ret == EOF) break;
i++;
token[i] = (unsigned char) fgetc (pnm_file);
token[i] = (unsigned char) ret;
}
while ((token[i] != '\n') && (token[i] != '\r') && (token[i] != ' '));
@ -510,6 +574,7 @@ png_uint_32 get_value (FILE *pnm_file, int depth)
{
static png_uint_32 mask = 0;
png_byte token[16];
unsigned long ul_ret_value;
png_uint_32 ret_value;
int i = 0;
@ -518,7 +583,8 @@ png_uint_32 get_value (FILE *pnm_file, int depth)
mask = (mask << 1) | 0x01;
get_token (pnm_file, (char *) token);
sscanf ((const char *) token, "%lu", &ret_value);
sscanf ((const char *) token, "%lu", &ul_ret_value);
ret_value = (png_uint_32) ul_ret_value;
ret_value &= mask;

71
libpng-manual.txt
View File

@ -1,6 +1,6 @@
Libpng-manual.txt - A description on how to use and modify libpng
libpng version 1.5.15beta06 - February 22, 2013
libpng version 1.5.16beta06 - May 12, 2013
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2013 Glenn Randers-Pehrson
@ -11,7 +11,7 @@ Libpng-manual.txt - A description on how to use and modify libpng
Based on:
libpng versions 0.97, January 1998, through 1.5.15beta06 - February 22, 2013
libpng versions 0.97, January 1998, through 1.5.16beta06 - May 12, 2013
Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2013 Glenn Randers-Pehrson
@ -31,9 +31,7 @@ Libpng-manual.txt - A description on how to use and modify libpng
I. Introduction
This file describes how to use and modify the PNG reference library
(known as libpng) for your own use. There are five sections to this
file: introduction, structures, reading, writing, and modification and
configuration notes for various special platforms. In addition to this
(known as libpng) for your own use. In addition to this
file, example.c is a good starting point for using the library, as
it is heavily commented and should include everything most people
will need. We assume that libpng is already installed; see the
@ -509,8 +507,7 @@ you can retrieve with
If you call the png_set_read_user_chunk_fn() function, then all unknown
chunks will be saved when read, in case your callback function will need
one or more of them. This behavior can be changed with the
png_set_keep_unknown_chunks() function, described below.
one or more of them.
At this point, you can set up a callback function that will be
called after each row has been read, which you can use to control
@ -604,7 +601,11 @@ callback function:
#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
/* ignore all unknown chunks: */
# if PNG_LIBPNG_VER < 10700
png_set_keep_unknown_chunks(read_ptr, 2, NULL, 0);
# else
png_set_keep_unknown_chunks(read_ptr, 1, NULL, 0);
# endif
/* except for vpAg: */
png_set_keep_unknown_chunks(read_ptr, 2, vpAg, 1);
@ -3034,13 +3035,45 @@ from PNG time to an RFC 1123 format string.
Writing unknown chunks
You can use the png_set_unknown_chunks function to queue up chunks
for writing. You give it a chunk name, raw data, and a size; that's
all there is to it. The chunks will be written by the next following
png_write_info_before_PLTE, png_write_info, or png_write_end function.
Any chunks previously read into the info structure's unknown-chunk
list will also be written out in a sequence that satisfies the PNG
specification's ordering rules.
You can use the png_set_unknown_chunks function to queue up private chunks
for writing. You give it a chunk name, location, raw data, and a size. You
also must use png_set_keep_unknown_chunks() to ensure that libpng will
handle them. That's all there is to it. The chunks will be written by the
next following png_write_info_before_PLTE, png_write_info, or png_write_end
function, depending upon the specified location. Any chunks previously
read into the info structure's unknown-chunk list will also be written out
in a sequence that satisfies the PNG specification's ordering rules.
Here is an example of writing two private chunks, prVt and miNE:
#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
/* Set unknown chunk data */
png_unknown_chunk unk_chunk[2];
strcpy((char *) unk_chunk[0].name, "prVt";
unk_chunk[0].data = (unsigned char *) "PRIVATE DATA";
unk_chunk[0].size = strlen(unk_chunk[0].data)+1;
unk_chunk[0].location = PNG_HAVE_IHDR;
strcpy((char *) unk_chunk[1].name, "miNE";
unk_chunk[1].data = (unsigned char *) "MY CHUNK DATA";
unk_chunk[1].size = strlen(unk_chunk[0].data)+1;
unk_chunk[1].location = PNG_AFTER_IDAT;
png_set_unknown_chunks(write_ptr, write_info_ptr,
unk_chunk, 2);
/* Needed because miNE is not safe-to-copy */
png_set_keep_unknown_chunks(png, PNG_HANDLE_CHUNK_ALWAYS,
(png_bytep) "miNE", 1);
/* Deal with unknown chunk location bug in 1.5.x and earlier */
png_set_unknown_chunk_location(png, info, 0, PNG_HAVE_IHDR);
png_set_unknown_chunk_location(png, info, 1, PNG_AFTER_IDAT);
# if PNG_LIBPNG_VER < 10500
/* PNG_AFTER_IDAT writes two copies of the chunk prior to libpng-1.5.0,
* one before IDAT and another after IDAT, so don't use it; only use
* PNG_HAVE_IHDR location. This call resets the location previously
* set by assignment and png_set_unknown_chunk_location() for chunk 1.
*/
png_set_unknown_chunk_location(png, info, 1, PNG_HAVE_IHDR);
# endif
#endif
The high-level write interface
@ -4490,11 +4523,11 @@ control. The git repository was built from old libpng-x.y.z.tar.gz files
going back to version 0.70. You can access the git repository (read only)
at
git://libpng.git.sourceforge.net/gitroot/libpng
git://git.code.sf.net/p/libpng/code
or you can browse it via "gitweb" at
or you can browse it with a web browser by selecting the "code" button at
http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng
https://sourceforge.net/projects/libpng/
Patches can be sent to glennrp at users.sourceforge.net or to
png-mng-implement at lists.sourceforge.net or you can upload them to
@ -4622,13 +4655,13 @@ Other rules can be inferred by inspecting the libpng source.
XIV. Y2K Compliance in libpng
February 22, 2013
May 12, 2013
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 1.5.15beta06 are Y2K compliant. It is my belief that earlier
upward through 1.5.16beta06 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 that

88
libpng.3
View File

@ -1,6 +1,6 @@
.TH LIBPNG 3 "February 22, 2013"
.TH LIBPNG 3 "May 12, 2013"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.5.15beta06
libpng \- Portable Network Graphics (PNG) Reference Library 1.5.16beta06
.SH SYNOPSIS
\fB
#include <png.h>\fP
@ -277,7 +277,7 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.5.15beta06
\fBvoid png_set_bKGD (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_16p \fIbackground\fP\fB);\fP
\fBvoid png_set_check_for_invalid_index(png_structrp \fP\fIpng_ptr\fP\fB, int \fIallowed\fP\fB);\fP
\fBvoid png_set_check_for_invalid_index(png_structp \fP\fIpng_ptr\fP\fB, int \fIallowed\fP\fB);\fP
\fBvoid png_set_cHRM (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, double \fP\fIwhite_x\fP\fB, double \fP\fIwhite_y\fP\fB, double \fP\fIred_x\fP\fB, double \fP\fIred_y\fP\fB, double \fP\fIgreen_x\fP\fB, double \fP\fIgreen_y\fP\fB, double \fP\fIblue_x\fP\fB, double \fIblue_y\fP\fB);\fP
@ -492,7 +492,7 @@ Following is a copy of the libpng-manual.txt file that accompanies libpng.
.SH LIBPNG.TXT
Libpng-manual.txt - A description on how to use and modify libpng
libpng version 1.5.15beta06 - February 22, 2013
libpng version 1.5.16beta06 - May 12, 2013
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2013 Glenn Randers-Pehrson
@ -503,7 +503,7 @@ Libpng-manual.txt - A description on how to use and modify libpng
Based on:
libpng versions 0.97, January 1998, through 1.5.15beta06 - February 22, 2013
libpng versions 0.97, January 1998, through 1.5.16beta06 - May 12, 2013
Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2013 Glenn Randers-Pehrson
@ -523,9 +523,7 @@ Libpng-manual.txt - A description on how to use and modify libpng
.SH I. Introduction
This file describes how to use and modify the PNG reference library
(known as libpng) for your own use. There are five sections to this
file: introduction, structures, reading, writing, and modification and
configuration notes for various special platforms. In addition to this
(known as libpng) for your own use. In addition to this
file, example.c is a good starting point for using the library, as
it is heavily commented and should include everything most people
will need. We assume that libpng is already installed; see the
@ -1001,8 +999,7 @@ you can retrieve with
If you call the png_set_read_user_chunk_fn() function, then all unknown
chunks will be saved when read, in case your callback function will need
one or more of them. This behavior can be changed with the
png_set_keep_unknown_chunks() function, described below.
one or more of them.
At this point, you can set up a callback function that will be
called after each row has been read, which you can use to control
@ -1096,7 +1093,11 @@ callback function:
#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
/* ignore all unknown chunks: */
# if PNG_LIBPNG_VER < 10700
png_set_keep_unknown_chunks(read_ptr, 2, NULL, 0);
# else
png_set_keep_unknown_chunks(read_ptr, 1, NULL, 0);
# endif
/* except for vpAg: */
png_set_keep_unknown_chunks(read_ptr, 2, vpAg, 1);
@ -3526,13 +3527,45 @@ from PNG time to an RFC 1123 format string.
.SS Writing unknown chunks
You can use the png_set_unknown_chunks function to queue up chunks
for writing. You give it a chunk name, raw data, and a size; that's
all there is to it. The chunks will be written by the next following
png_write_info_before_PLTE, png_write_info, or png_write_end function.
Any chunks previously read into the info structure's unknown-chunk
list will also be written out in a sequence that satisfies the PNG
specification's ordering rules.
You can use the png_set_unknown_chunks function to queue up private chunks
for writing. You give it a chunk name, location, raw data, and a size. You
also must use png_set_keep_unknown_chunks() to ensure that libpng will
handle them. That's all there is to it. The chunks will be written by the
next following png_write_info_before_PLTE, png_write_info, or png_write_end
function, depending upon the specified location. Any chunks previously
read into the info structure's unknown-chunk list will also be written out
in a sequence that satisfies the PNG specification's ordering rules.
Here is an example of writing two private chunks, prVt and miNE:
#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
/* Set unknown chunk data */
png_unknown_chunk unk_chunk[2];
strcpy((char *) unk_chunk[0].name, "prVt";
unk_chunk[0].data = (unsigned char *) "PRIVATE DATA";
unk_chunk[0].size = strlen(unk_chunk[0].data)+1;
unk_chunk[0].location = PNG_HAVE_IHDR;
strcpy((char *) unk_chunk[1].name, "miNE";
unk_chunk[1].data = (unsigned char *) "MY CHUNK DATA";
unk_chunk[1].size = strlen(unk_chunk[0].data)+1;
unk_chunk[1].location = PNG_AFTER_IDAT;
png_set_unknown_chunks(write_ptr, write_info_ptr,
unk_chunk, 2);
/* Needed because miNE is not safe-to-copy */
png_set_keep_unknown_chunks(png, PNG_HANDLE_CHUNK_ALWAYS,
(png_bytep) "miNE", 1);
/* Deal with unknown chunk location bug in 1.5.x and earlier */
png_set_unknown_chunk_location(png, info, 0, PNG_HAVE_IHDR);
png_set_unknown_chunk_location(png, info, 1, PNG_AFTER_IDAT);
# if PNG_LIBPNG_VER < 10500
/* PNG_AFTER_IDAT writes two copies of the chunk prior to libpng-1.5.0,
* one before IDAT and another after IDAT, so don't use it; only use
* PNG_HAVE_IHDR location. This call resets the location previously
* set by assignment and png_set_unknown_chunk_location() for chunk 1.
*/
png_set_unknown_chunk_location(png, info, 1, PNG_HAVE_IHDR);
# endif
#endif
.SS The high-level write interface
@ -4983,11 +5016,11 @@ control. The git repository was built from old libpng-x.y.z.tar.gz files
going back to version 0.70. You can access the git repository (read only)
at
git://libpng.git.sourceforge.net/gitroot/libpng
git://git.code.sf.net/p/libpng/code
or you can browse it via "gitweb" at
or you can browse it with a web browser by selecting the "code" button at
http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng
https://sourceforge.net/projects/libpng/
Patches can be sent to glennrp at users.sourceforge.net or to
png-mng-implement at lists.sourceforge.net or you can upload them to
@ -5115,13 +5148,13 @@ Other rules can be inferred by inspecting the libpng source.
.SH XIV. Y2K Compliance in libpng
February 22, 2013
May 12, 2013
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 1.5.15beta06 are Y2K compliant. It is my belief that earlier
upward through 1.5.16beta06 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 that
@ -5344,7 +5377,10 @@ the first widely used release:
1.5.14beta01-08 15 10514 15.so.15.14[.0]
1.5.14rc01-03 15 10514 15.so.15.14[.0]
1.5.14 15 10514 15.so.15.14[.0]
1.5.15beta01-06 15 10515 15.so.15.15[.0]
1.5.15beta01-09 15 10515 15.so.15.15[.0]
1.5.15rc01 15 10515 15.so.15.15[.0]
1.5.15 15 10515 15.so.15.15[.0]
1.5.16beta01-06 15 10516 15.so.15.16[.0]
Henceforth the source version will match the shared-library minor
and patch numbers; the shared-library major version number will be
@ -5401,7 +5437,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.5.15beta06 - February 22, 2013:
Libpng version 1.5.16beta06 - May 12, 2013:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
@ -5424,7 +5460,7 @@ this sentence.
This code is released under the libpng license.
libpng versions 1.2.6, August 15, 2004, through 1.5.15beta06, February 22, 2013, are
libpng versions 1.2.6, August 15, 2004, through 1.5.16beta06, May 12, 2013, 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
@ -5523,7 +5559,7 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
February 22, 2013
May 12, 2013
.\" end of man page

4
libpngpf.3
View File

@ -1,6 +1,6 @@
.TH LIBPNGPF 3 "February 22, 2013"
.TH LIBPNGPF 3 "May 12, 2013"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.5.15beta06
libpng \- Portable Network Graphics (PNG) Reference Library 1.5.16beta06
(private functions)
.SH SYNOPSIS
\fB#include \fI"pngpriv.h"

2
png.5
View File

@ -1,4 +1,4 @@
.TH PNG 5 "February 22, 2013"
.TH PNG 5 "May 12, 2013"
.SH NAME
png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION

29
png.c
View File

@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions
*
* Last changed in libpng 1.5.15 [(PENDING RELEASE)]
* Last changed in libpng 1.5.15 [March 28, 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.)
@ -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_5_15beta06 Your_png_h_is_not_version_1_5_15beta06;
typedef png_libpng_version_1_5_16beta06 Your_png_h_is_not_version_1_5_16beta06;
/* 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
@ -658,13 +658,13 @@ png_get_copyright(png_const_structp png_ptr)
#else
# ifdef __STDC__
return PNG_STRING_NEWLINE \
"libpng version 1.5.15beta06 - February 22, 2013" PNG_STRING_NEWLINE \
"libpng version 1.5.16beta06 - May 12, 2013" PNG_STRING_NEWLINE \
"Copyright (c) 1998-2013 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 1.5.15beta06 - February 22, 2013\
return "libpng version 1.5.16beta06 - May 12, 2013\
Copyright (c) 1998-2013 Glenn Randers-Pehrson\
Copyright (c) 1996-1997 Andreas Dilger\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
@ -2878,3 +2878,24 @@ png_build_gamma_table(png_structp png_ptr, int bit_depth)
}
#endif /* READ_GAMMA */
#endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */
/* HARDWARE OPTION SUPPORT */
#ifdef PNG_SET_OPTION_SUPPORTED
int PNGAPI
png_set_option(png_structp png_ptr, int option, int onoff)
{
if (png_ptr != NULL && option >= 0 && option < PNG_OPTION_NEXT &&
(option & 1) == 0)
{
int mask = 3 << option;
int setting = (2 + (onoff != 0)) << option;
int current = png_ptr->options;
png_ptr->options = (png_byte)((current & ~mask) | setting);
return (current & mask) >> option;
}
return PNG_OPTION_INVALID;
}
#endif

68
png.h
View File

@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library
*
* libpng version 1.5.15beta06 - February 22, 2013
* libpng version 1.5.16beta06 - May 12, 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.)
@ -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 1.5.15beta06 - February 22, 2013: Glenn
* libpng versions 0.97, January 1998, through 1.5.16beta06 - May 12, 2013: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@ -184,7 +184,10 @@
* 1.5.14beta01-08 15 10514 15.so.15.14[.0]
* 1.5.14rc01-03 15 10514 15.so.15.14[.0]
* 1.5.14 15 10514 15.so.15.14[.0]
* 1.5.15beta01-06 15 10515 15.so.15.15[.0]
* 1.5.15beta01-09 15 10515 15.so.15.15[.0]
* 1.5.15rc01 15 10515 15.so.15.15[.0]
* 1.5.15 15 10515 15.so.15.15[.0]
* 1.5.16beta01-06 15 10516 15.so.15.16[.0]
*
* Henceforth the source version will match the shared-library major
* and minor numbers; the shared-library major version number will be
@ -216,7 +219,7 @@
*
* This code is released under the libpng license.
*
* libpng versions 1.2.6, August 15, 2004, through 1.5.15beta06, February 22, 2013, are
* libpng versions 1.2.6, August 15, 2004, through 1.5.16beta06, May 12, 2013, 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:
@ -328,13 +331,13 @@
* Y2K compliance in libpng:
* =========================
*
* February 22, 2013
* May 12, 2013
*
* 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 1.5.15beta06 are Y2K compliant. It is my belief that
* upward through 1.5.16beta06 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
@ -393,9 +396,9 @@
*/
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.5.15beta06"
#define PNG_LIBPNG_VER_STRING "1.5.16beta06"
#define PNG_HEADER_VERSION_STRING \
" libpng version 1.5.15beta06 - February 22, 2013\n"
" libpng version 1.5.16beta06 - May 12, 2013\n"
#define PNG_LIBPNG_VER_SONUM 15
#define PNG_LIBPNG_VER_DLLNUM 15
@ -403,7 +406,7 @@
/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
#define PNG_LIBPNG_VER_MAJOR 1
#define PNG_LIBPNG_VER_MINOR 5
#define PNG_LIBPNG_VER_RELEASE 15
#define PNG_LIBPNG_VER_RELEASE 16
/* This should match the numeric part of the final component of
* PNG_LIBPNG_VER_STRING, omitting any leading zero:
@ -434,7 +437,7 @@
* 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 10515 /* 1.5.15 */
#define PNG_LIBPNG_VER 10516 /* 1.5.16 */
/* Library configuration: these options cannot be changed after
* the library has been built.
@ -556,7 +559,7 @@ extern "C" {
/* 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_5_15beta06;
typedef char* png_libpng_version_1_5_16beta06;
/* Three color definitions. The order of the red, green, and blue, (and the
* exact size) is not important, although the size of the fields need to
@ -2660,6 +2663,47 @@ PNG_EXPORT(235, int, png_get_palette_max, (png_const_structp png_ptr,
# endif
#endif /* CHECK_FOR_INVALID_INDEX */
/*******************************************************************************
* IMPLEMENTATION OPTIONS
*******************************************************************************
*
* Support for arbitrary implementation-specific optimizations. The API allows
* particular options to be turned on or off. 'Option' is the number of the
* option and 'onoff' is 0 (off) or non-0 (on). The value returned is given
* by the PNG_OPTION_ defines below.
*
* HARDWARE: normally hardware capabilites, such as the Intel SSE instructions,
* are detected at run time, however sometimes it may be impossible
* to do this in user mode, in which case it is necessary to discover
* the capabilities in an OS specific way. Such capabilities are
* listed here when libpng has support for them and must be turned
* ON by the application if present.
*
* SOFTWARE: sometimes software optimizations actually result in performance
* decrease on some architectures or systems, or with some sets of
* PNG images. 'Software' options allow such optimizations to be
* selected at run time.
*/
#ifdef PNG_SET_OPTION_SUPPORTED
#ifdef PNG_ARM_NEON_API_SUPPORTED
# define PNG_ARM_NEON 0 /* HARDWARE: ARM Neon SIMD instructions supported */
#endif
#define PNG_OPTION_NEXT 2 /* Next option - numbers must be even */
/* Return values: NOTE: there are four values and 'off' is *not* zero */
#define PNG_OPTION_UNSET 0 /* Unset - defaults to off */
#define PNG_OPTION_INVALID 1 /* Option number out of range */
#define PNG_OPTION_OFF 2
#define PNG_OPTION_ON 3
PNG_EXPORT(236, int, png_set_option, (png_structp png_ptr, int option,
int onoff));
#endif
/*******************************************************************************
* END OF HARDWARE OPTIONS
******************************************************************************/
/* Maintainer: Put new public prototypes here ^, in libpng.3, and project
* defs
*/
@ -2669,7 +2713,7 @@ PNG_EXPORT(235, int, png_get_palette_max, (png_const_structp png_ptr,
* scripts/symbols.def as well.
*/
#ifdef PNG_EXPORT_LAST_ORDINAL
PNG_EXPORT_LAST_ORDINAL(235);
PNG_EXPORT_LAST_ORDINAL(236);
#endif
#ifdef __cplusplus

2
pngconf.h
View File

@ -1,7 +1,7 @@
/* pngconf.h - machine configurable file for libpng
*
* libpng version 1.5.15beta06 - February 22, 2013
* libpng version 1.5.16beta06 - May 12, 2013
*
* Copyright (c) 1998-2013 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngget.c
View File

@ -1,7 +1,7 @@
/* pngget.c - retrieval of values from info struct
*
* Last changed in libpng 1.5.15 [(PENDING RELEASE)]
* Last changed in libpng 1.5.15 [March 28, 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.)

2
pngpriv.h
View File

@ -6,7 +6,7 @@
* (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 1.5.15 [(PENDING RELEASE)]
* Last changed in libpng 1.5.15 [March 28, 2013]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer

4
pngrtran.c
View File

@ -1,7 +1,7 @@
/* pngrtran.c - transforms the data in a row for PNG readers
*
* Last changed in libpng 1.5.15 [(PENDING RELEASE)]
* Last changed in libpng 1.5.15 [March 28, 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.)
@ -194,6 +194,8 @@ translate_gamma_flags(png_structp png_ptr, png_fixed_point output_gamma,
*/
# ifdef PNG_READ_sRGB_SUPPORTED
png_ptr->flags |= PNG_FLAG_ASSUME_sRGB;
# else
PNG_UNUSED(png_ptr)
# endif
if (is_screen)
output_gamma = PNG_GAMMA_sRGB;

8
pngrutil.c
View File

@ -1,7 +1,7 @@
/* pngrutil.c - utilities to read a PNG file
*
* Last changed in libpng 1.5.14 [January 24, 2013]
* Last changed in libpng 1.5.15 [March 28, 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.)
@ -18,8 +18,6 @@
#ifdef PNG_READ_SUPPORTED
#define png_strtod(p,a,b) strtod(a,b)
png_uint_32 PNGAPI
png_get_uint_31(png_structp png_ptr, png_const_bytep buf)
{
@ -3161,7 +3159,7 @@ png_combine_row(png_structp png_ptr, png_bytep dp, int display)
{
png_uint_32p dp32 = (png_uint_32p)dp;
png_const_uint_32p sp32 = (png_const_uint_32p)sp;
unsigned int skip = (bytes_to_jump-bytes_to_copy) /
size_t skip = (bytes_to_jump-bytes_to_copy) /
sizeof (png_uint_32);
do
@ -3202,7 +3200,7 @@ png_combine_row(png_structp png_ptr, png_bytep dp, int display)
{
png_uint_16p dp16 = (png_uint_16p)dp;
png_const_uint_16p sp16 = (png_const_uint_16p)sp;
unsigned int skip = (bytes_to_jump-bytes_to_copy) /
size_t skip = (bytes_to_jump-bytes_to_copy) /
sizeof (png_uint_16);
do

2
pngset.c
View File

@ -1,7 +1,7 @@
/* pngset.c - storage of image information into info struct
*
* Last changed in libpng 1.5.15 [(PENDING RELEASE)]
* Last changed in libpng 1.5.14 [January 24, 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.)

7
pngstruct.h
View File

@ -5,7 +5,7 @@
* (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 1.5.15 [(PENDING RELEASE)]
* Last changed in libpng 1.5.15 [March 28, 2013]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
@ -355,5 +355,10 @@ struct png_struct_def
/* New member added in libpng-1.5.7 */
void (*read_filter[PNG_FILTER_VALUE_LAST-1])(png_row_infop row_info,
png_bytep row, png_const_bytep prev_row);
/* Options */
#ifdef PNG_SET_OPTION_SUPPORTED
png_byte options; /* On/off state (up to 4 options) */
#endif
};
#endif /* PNGSTRUCT_H */

19
pngtest.c
View File

@ -1,7 +1,7 @@
/* pngtest.c - a simple test program to test libpng
*
* Last changed in libpng 1.5.15 [(PENDING RELEASE)]
* Last changed in libpng 1.5.15 [March 28, 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.)
@ -43,7 +43,20 @@
#include "png.h"
#ifdef PNG_READ_SUPPORTED /* else nothing can be done */
#if defined PNG_READ_SUPPORTED && /* else nothing can be done */\
defined PNG_READ_bKGD_SUPPORTED &&\
defined PNG_READ_cHRM_SUPPORTED &&\
defined PNG_READ_gAMA_SUPPORTED &&\
defined PNG_READ_oFFs_SUPPORTED &&\
defined PNG_READ_pCAL_SUPPORTED &&\
defined PNG_READ_pHYs_SUPPORTED &&\
defined PNG_READ_sBIT_SUPPORTED &&\
defined PNG_READ_sCAL_SUPPORTED &&\
defined PNG_READ_sRGB_SUPPORTED &&\
defined PNG_READ_tEXt_SUPPORTED &&\
defined PNG_READ_tIME_SUPPORTED &&\
defined PNG_READ_zTXt_SUPPORTED
#include "zlib.h"
/* Copied from pngpriv.h but only used in error messages below. */
#ifndef PNG_ZBUF_SIZE
@ -1949,4 +1962,4 @@ main(void)
#endif
/* Generate a compiler error if there is an old png.h in the search path. */
typedef png_libpng_version_1_5_15beta06 Your_png_h_is_not_version_1_5_15beta06;
typedef png_libpng_version_1_5_16beta06 Your_png_h_is_not_version_1_5_16beta06;

2
pngwrite.c
View File

@ -1,7 +1,7 @@
/* pngwrite.c - general routines to write a PNG file
*
* Last changed in libpng 1.5.15 [(PENDING RELEASE)]
* Last changed in libpng 1.5.15 [March 28, 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.)

2
projects/vstudio/readme.txt
View File

@ -1,7 +1,7 @@
VisualStudio instructions
libpng version 1.5.15beta06 - February 22, 2013
libpng version 1.5.16beta06 - May 12, 2013
Copyright (c) 1998-2010 Glenn Randers-Pehrson

2
projects/vstudio/zlib.props
View File

@ -2,7 +2,7 @@
<!--
* zlib.props - location of zlib source
*
* libpng version 1.5.15beta06 - February 22, 2013
* libpng version 1.5.16beta06 - May 12, 2013
*
* Copyright (c) 1998-2011 Glenn Randers-Pehrson
*

12
scripts/README.txt
View File

@ -1,9 +1,9 @@
Makefiles for libpng version 1.5.15beta06 - February 22, 2013
Makefiles for libpng version 1.5.16beta06 - May 12, 2013
pnglibconf.h.prebuilt => Stores configuration settings
makefile.linux => Linux/ELF makefile
(gcc, creates libpng15.so.15.1.5.15beta06)
(gcc, creates libpng15.so.15.1.5.16beta06)
makefile.gcc => Generic makefile (gcc, creates static libpng.a)
makefile.knr => Archaic UNIX Makefile that converts files with
ansi2knr (Requires ansi2knr.c from
@ -21,7 +21,7 @@ pnglibconf.h.prebuilt => Stores configuration settings
makefile.dec => DEC Alpha UNIX makefile
makefile.dj2 => DJGPP 2 makefile
makefile.elf => Linux/ELF makefile symbol versioning,
(gcc, creates libpng15.so.15.1.5.15beta06)
(gcc, creates libpng15.so.15.1.5.16beta06)
makefile.freebsd => FreeBSD makefile
makefile.gcc => Generic gcc makefile
makefile.hpgcc => HPUX makefile using gcc
@ -36,12 +36,12 @@ pnglibconf.h.prebuilt => Stores configuration settings
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 libpng15.so.15.1.5.15beta06)
creates libpng15.so.15.1.5.16beta06)
makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib)
makefile.solaris => Solaris 2.X makefile (gcc,
creates libpng15.so.15.1.5.15beta06)
creates libpng15.so.15.1.5.16beta06)
makefile.so9 => Solaris 9 makefile (gcc,
creates libpng15.so.15.1.5.15beta06)
creates libpng15.so.15.1.5.16beta06)
makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
makefile.sunos => Sun makefile
makefile.32sunu => Sun Ultra 32-bit makefile

20
scripts/checksym.awk
View File

@ -5,8 +5,9 @@
# awk -f checksym.awk official-def list-to-check
#
# Output is a file in the current directory called 'symbols.new',
# stdout holds error messages. Error code indicates success or
# failure.
# the value of the awk variable "of" (which can be changed on the
# command line if required.) stdout holds error messages. Error
# code indicates success or failure.
#
# NOTE: this is a pure, old fashioned, awk script. It will
# work with any awk
@ -21,6 +22,7 @@ BEGIN{
mastero = 0 # highest ordinal in master file
symbolo = 0 # highest ordinal in png.h
missing = "error"# log an error on missing symbols
of="symbols.new" # default to a fixed name
}
# Read existing definitions from the master file (the first
@ -111,6 +113,16 @@ END{
err = 1
}
unexported=0
# Add a standard header to symbols.new:
print ";Version INSERT-VERSION-HERE" >of
print ";--------------------------------------------------------------" >of
print "; LIBPNG symbol list as a Win32 DEF file" >of
print "; Contains all the symbols that can be exported from libpng" >of
print ";--------------------------------------------------------------" >of
print "LIBRARY" >of
print "" >of
print "EXPORTS" >of
for (o=1; o<=lasto; ++o) {
if (symbol[o] == "" && removed[o] == "") {
if (unexported == 0) unexported = o
@ -151,11 +163,11 @@ END{
# Finally generate symbols.new
if (symbol[o] != "")
print " " symbol[o], "@" o > "symbols.new"
print " " symbol[o], "@" o > of
}
if (err != 0) {
print "*** A new list is in symbols.new ***"
print "*** A new list is in", of, "***"
exit 1
}
}

180
scripts/dfn.awk
View File

@ -31,11 +31,11 @@ NR==1 && out == "/dev/null" {
# Output can be sorted; two lines are recognized
$1 == "PNG_DFN_START_SORT"{
sort=$2
sort=0+$2
next
}
$1 == "PNG_DFN_END_SORT"{
$1 ~ /^PNG_DFN_END_SORT/{
# Do a very simple, slow, sort; notice that blank lines won't be
# output by this
for (entry in array) {
@ -61,75 +61,143 @@ $1 == "PNG_DFN_END_SORT"{
}
/^[^"]*PNG_DFN *".*"[^"]*$/{
# A definition line, apparently correctly formated, extract the
# definition then replace any doubled "" that remain with a single
# double quote. Notice that the original doubled double quotes
# may have been split by tokenization
orig=$0
# A definition line, apparently correctly formated, extract the
# definition then replace any doubled "" that remain with a single
# double quote. Notice that the original doubled double quotes
# may have been split by tokenization
#
# Sometimes GCC splits the PNG_DFN lines, we know this has happened
# if the quotes aren't closed and must read another line. In this
# case it is essential to reject lines that start '#' because those
# are introduced #line directives.
orig=$0
line=$0
lineno=FNR
if (lineno == "") lineno=NR
if (gsub(/^[^"]*PNG_DFN *"/,"") != 1 || gsub(/"[^"]*$/, "") != 1) {
print "line", NR, "processing failed:"
if (sub(/^[^"]*PNG_DFN *"/,"",line) != 1) {
print "line", lineno ": processing failed:"
print orig
print $0
err=1
} else {
next
} else {
++out_count
}
}
# Now examine quotes within the value:
#
# @" - delete this and any following spaces
# "@ - delete this and any original spaces
# @' - replace this by a double quote
#
# This allows macro substitution by the C compiler thus:
#
# #define first_name John
# #define last_name Smith
#
# PNG_DFN"#define name @'@" first_name "@ @" last_name "@@'"
#
# Might get C preprocessed to:
#
# PNG_DFN "#define foo @'@" John "@ @" Smith "@@'"
#
# Which this script reduces to:
#
# #define name "John Smith"
#
while (sub(/@" */, "")) {
if (!sub(/ *"@/, "")) {
print "unbalanced @\" ... \"@ pair"
err=1
break
}
}
# Now examine quotes within the value:
#
# @" - delete this and any following spaces
# "@ - delete this and any preceding spaces
# @' - replace this by a double quote
#
# This allows macro substitution by the C compiler thus:
#
# #define first_name John
# #define last_name Smith
#
# PNG_DFN"#define name @'@" first_name "@ @" last_name "@@'"
#
# Might get C preprocessed to:
#
# PNG_DFN "#define foo @'@" John "@ @" Smith "@@'"
#
# Which this script reduces to:
#
# #define name "John Smith"
#
while (1) {
# While there is an @" remove it and the next "@
if (line ~ /@"/) {
if (line ~ /@".*"@/) {
# Do this special case first to avoid swallowing extra spaces
# before or after the @ stuff:
if (!sub(/@" *"@/, "", line)) {
# Ok, do it in pieces - there has to be a non-space between the
# two. NOTE: really weird things happen if a leading @" is
# lost - the code will error out below (I believe).
if (!sub(/@" */, "", line) || !sub(/ *"@/, "", line)) {
print "line", lineno, ": internal error:", orig
exit 1
}
}
}
# Put any needed double quotes in
gsub(/@'/,"\"")
# There is no matching "@. Assume a split line
else while (1) {
if (getline nextline) {
# If the line starts with '#' it is a preprocesor line directive
# from cc -E, skip it:
if (nextline !~ /^#/) {
line = line " " nextline
break
}
} else {
# This is end-of-input - probably a missig "@ on the first line:
print "line", lineno ": unbalanced @\" ... \"@ pair"
err=1
next
}
}
# Remove any trailing spaces (not really required, but for
# editorial consistency
sub(/ *$/, "")
# Keep going until all the @" have gone
continue
}
if (sort)
array[$(sort)] = $0
# Attempt to remove a trailing " (not preceded by '@') - if this can
# be done stop now, if not assume a split line again
if (sub(/"[^"]*$/, "", line))
break
else
print $0 >out
next
# Read another line
while (1) {
if (getline nextline) {
if (nextline !~ /^#/) {
line = line " " nextline
# Go back to stripping @" "@ pairs
break
}
} else {
print "line", lineno ": unterminated PNG_DFN string"
err=1
next
}
}
}
# Put any needed double quotes in (at the end, because these would otherwise
# interfere with the processing above.)
gsub(/@'/,"\"", line)
# Remove any trailing spaces (not really required, but for
# editorial consistency
sub(/ *$/, "", line)
# Remove trailing CR
sub(/ $/, "", line)
if (sort) {
if (split(line, parts) < sort) {
print "line", lineno ": missing sort field:", line
err=1
} else
array[parts[sort]] = line
}
else
print line >out
next
}
/PNG_DFN/{
print "line", NR, "incorrectly formated PNG_DFN line:"
print $0
err = 1
print "line", NR, "incorrectly formated PNG_DFN line:"
print $0
err = 1
}
END{
if (out_count > 0 || err > 0)
if (out_count > 0 || err > 0)
exit err
print "no definition lines found"
exit 1
print "no definition lines found"
exit 1
}

2
scripts/libpng-config-head.in
View File

@ -11,7 +11,7 @@
# Modeled after libxml-config.
version=1.5.15beta06
version=1.5.16beta06
prefix=""
libdir=""
libs=""

2
scripts/libpng.pc.in
View File

@ -5,6 +5,6 @@ includedir=@includedir@/libpng15
Name: libpng
Description: Loads and saves PNG files
Version: 1.5.15beta06
Version: 1.5.16beta06
Libs: -L${libdir} -lpng15
Cflags: -I${includedir}

2
scripts/makefile.cegcc
View File

@ -23,7 +23,7 @@
VERMAJ = 1
VERMIN = 5
VERMIC = 15
VERMIC = 16
VER = $(VERMAJ).$(VERMIN).$(VERMIC)
NAME = libpng
PACKAGE = $(NAME)-$(VER)

13
scripts/makefile.freebsd
View File

@ -26,19 +26,24 @@ SYMLINKS= libpng/png.h ${INCSDIR}/../png.h \
libpng/pngconf.h ${INCSDIR}/../pngconf.h \
libpng/pnglibconf.h ${INCSDIR}/../pnglibconf.h
LDADD+= -lm -lz
#LDADD+= -lm -lz -lssp_nonshared # for OSVERSION >= 800000 ?
# where make install finds libz.a and zlib.h
ZLIBLIB= /usr/lib
ZLIBINC= /usr/include
LDADD+= -lm -lz
#LDADD+= -lm -lz -lssp_nonshared # for OSVERSION < 800000 ?
DPADD+= ${LIBM} ${LIBZ}
CFLAGS+= -I.
CFLAGS+= -I. -I${ZLIBINC}
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
pngtest: pngtest.o libpng.a
${CC} ${CFLAGS} -L. -static -o pngtest pngtest.o -lpng -lz -lm
${CC} ${CFLAGS} -L. -static -o pngtest pngtest.o -L${ZLIBLIB} \
-lpng ${LDADD}
CLEANFILES= pngtest pngtest.o pngout.png

2
scripts/makefile.linux
View File

@ -10,7 +10,7 @@
# Library name:
LIBNAME = libpng15
PNGMAJ = 15
RELEASE = 15
RELEASE = 16
# Shared library names:
LIBSO=$(LIBNAME).so

2
scripts/makefile.msys
View File

@ -18,7 +18,7 @@ exec_prefix=$(prefix)
# Library name:
LIBNAME = libpng15
PNGMAJ = 15
RELEASE = 15
RELEASE = 16
# Shared library names:
LIBSO=$(LIBNAME).dll

2
scripts/makefile.ne12bsd
View File

@ -17,7 +17,7 @@ INCSDIR=${LOCALBASE}/include/libpng15
LIB= png15
SHLIB_MAJOR= 0
SHLIB_MINOR= 1.5.15beta06
SHLIB_MINOR= 1.5.16beta06
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

2
scripts/makefile.netbsd
View File

@ -17,7 +17,7 @@ INCSDIR=${LOCALBASE}/include
LIB= png
SHLIB_MAJOR= 15
SHLIB_MINOR= 1.5.15beta06
SHLIB_MINOR= 1.5.16beta06
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

2
scripts/makefile.openbsd
View File

@ -11,7 +11,7 @@ LIBDIR= ${PREFIX}/lib
MANDIR= ${PREFIX}/man/cat
SHLIB_MAJOR= 15
SHLIB_MINOR= 1.5.15beta06
SHLIB_MINOR= 1.5.16beta06
LIB= png
SRCS= png.c pngerror.c pngget.c pngmem.c pngpread.c \

362
scripts/options.awk
View File

@ -53,7 +53,7 @@ BEGIN{
comment=start "/*" # Comment start
cend="*/" end # Comment end
def=start "#define PNG_" # Arbitrary define
sup="_SUPPORTED 1" end # end supported option
sup="_SUPPORTED" end # end supported option
und=comment "#undef PNG_" # Unsupported option
une="_SUPPORTED" cend # end unsupported option
error=start "ERROR:" # error message, terminate with 'end'
@ -64,11 +64,15 @@ BEGIN{
logunsupported=0 # write unsupported options too
# Precreate arrays
# for each option:
option[""] = "" # list of all options: default enabled/disabled
done[""] = 1 # marks option as having been output
requires[""] = "" # requires by option
iffs[""] = "" # if by option
enabledby[""] = "" # options that enable it by option
sets[""] = "" # settings set by each option
setval[""] = "" # value to set (indexed: 'option sets[option]')
# for each setting:
setting[""] = "" # requires by setting
defaults[""] = "" # used for a defaulted value
doneset[""] = 1 # marks setting as having been output
@ -200,7 +204,7 @@ $1 == "com"{
if (NF > 1) {
# sub(/^[ ]*com[ ]*/, "")
$1 = ""
print comment, $0, cend >out
print comment $0, cend >out
} else
print start end >out
next
@ -237,7 +241,9 @@ $1 == "file" && NF >= 2{
next
}
# option NAME ( (requires|enables|if) NAME* | on | off | disabled )*
# option NAME ( (requires|enables|if) NAME* | on | off | disabled |
# sets SETTING VALUE+ )*
#
# Declares an option 'NAME' and describes its default setting (disabled)
# and its relationship to other options. The option is disabled
# unless *all* the options listed after 'requires' are set and at
@ -252,95 +258,152 @@ $1 == "file" && NF >= 2{
# be later) entry may turn an option on or off explicitly.
$1 == "option" && NF >= 2{
onoff = option[$2] # records current (and the default is "", enabled)
opt = $2
sub(/,$/,"",opt)
onoff = option[opt] # records current (and the default is "", enabled)
key = ""
for (i=3; i<=NF; ++i) {
if ($(i) == "on" || $(i) == "off" || $(i) == "disabled") {
key = ""
if (onoff != $(i)) {
# on or off can zap disabled or enabled:
if (onoff == "" || (onoff == "disabled" || onoff == "enabled") && ($(i) == "on" || $(i) == "off")) {
# It's easy to mis-spell the option when turning it
# on or off, so warn about it here:
if (onoff == "" && ($(i) == "on" || $(i) == "off")) {
print $2 ": ERROR: turning unrecognized option", $(i)
# For the moment error out - it is safer
err = 1 # prevent END{} running
exit 1
}
onoff = $(i)
} else {
# Print a message, otherwise the error
# below is incomprehensible
print $2 ": currently", onoff ": attempt to turn", $(i)
break
}
istart = 3
do {
if (istart == 1) { # continuation line
val = getline
if (val != 1) { # error reading it
if (val == 0)
print "option", opt ": ERROR: missing contination line"
else
print "option", opt ": ERROR: error reading continuation line"
# This is a hard error
err = 1 # prevent END{} running
exit 1
}
} else if ($(i) == "requires" || $(i) == "if" || $(i) == "enables") {
key = $(i)
} else if (key == "requires") {
requires[$2] = requires[$2] " " $(i)
} else if (key == "if") {
iffs[$2] = iffs[$2] " " $(i)
} else if (key == "enables") {
enabledby[$(i)] = enabledby[$(i)] " " $2
} else
break # bad line format
}
}
for (i=istart; i<=NF; ++i) {
val=$(i)
sub(/,$/,"",val)
if (val == "on" || val == "off" || val == "disabled") {
key = ""
if (onoff != val) {
# on or off can zap disabled or enabled:
if (onoff == "" || (onoff == "disabled" || onoff == "enabled") &&
(val == "on" || val == "off")) {
# It's easy to mis-spell the option when turning it
# on or off, so warn about it here:
if (onoff == "" && (val == "on" || val == "off")) {
print "option", opt ": ERROR: turning unrecognized option", val
# For the moment error out - it is safer
err = 1 # prevent END{} running
exit 1
}
onoff = val
} else {
# Print a message, otherwise the error
# below is incomprehensible
print "option", opt ": currently", onoff ": attempt to turn", val
break
}
}
} else if (val == "requires" || val == "if" || val == "enables" || val =="sets") {
key = val
} else if (key == "requires") {
requires[opt] = requires[opt] " " val
} else if (key == "if") {
iffs[opt] = iffs[opt] " " val
} else if (key == "enables") {
enabledby[val] = enabledby[val] " " opt
} else if (key == "sets") {
sets[opt] = sets[opt] " " val
key = "setval"
set = val
} else if (key == "setval") {
setval[opt " " set] = setval[opt " " set] " " val
} else
break # bad line format
}
istart = 1
} while (i > NF && $0 ~ /,$/)
if (i > NF) {
# Set the option, defaulting to 'enabled'
if (onoff == "") onoff = "enabled"
option[$2] = onoff
option[opt] = onoff
next
}
# Else fall through to the error handler
}
# chunk NAME [requires OPT] [on|off|disabled]
# chunk NAME [requires OPT] [enables LIST] [on|off|disabled]
# Expands to the 'option' settings appropriate to the reading and
# writing of an ancilliary PNG chunk 'NAME':
#
# option READ_NAME requires READ_ANCILLARY_CHUNKS [READ_OPT]
# option READ_NAME enables NAME
# option READ_NAME enables NAME LIST
# [option READ_NAME off]
# option WRITE_NAME requires WRITE_ANCILLARY_CHUNKS [WRITE_OPT]
# option WRITE_NAME enables NAME
# option WRITE_NAME enables NAME LIST
# [option WRITE_NAME off]
pre != 0 && $1 == "chunk" && NF >= 2{
# 'chunk' is handled on the first pass by writing appropriate
# 'option' lines into the intermediate file.
opt = $2
sub(/,$/,"",opt)
onoff = ""
reqread = ""
reqwrite = ""
i = 3 # indicates format error
if (NF > 2) {
enables = ""
req = 0
istart = 3
do {
if (istart == 1) { # continuation line
val = getline
if (val != 1) { # error reading it
if (val == 0)
print "chunk", opt ": ERROR: missing contination line"
else
print "chunk", opt ": ERROR: error reading continuation line"
# This is a hard error
err = 1 # prevent END{} running
exit 1
}
}
# read the keywords/additional OPTS
req = 0
for (i=3; i<=NF; ++i) {
if ($(i) == "on" || $(i) == "off" || $(i) == "disabled") {
if (onoff != $(i)) {
for (i=istart; i<=NF; ++i) {
val = $(i)
sub(/,$/,"",val)
if (val == "on" || val == "off" || val == "disabled") {
if (onoff != val) {
if (onoff == "")
onoff = $(i)
onoff = val
else
break # on/off conflict
}
} else if ($(i) == "requires")
req = 0
} else if (val == "requires")
req = 1
else if (req != 1)
else if (val == "enables")
req = 2
else if (req == 1){
reqread = reqread " READ_" val
reqwrite = reqwrite " WRITE_" val
} else if (req == 2)
enables = enables " " val
else
break # bad line: handled below
else {
reqread = reqread " READ_" $(i)
reqwrite = reqwrite " WRITE_" $(i)
}
}
}
istart = 1
} while (i > NF && $0 ~ /,$/)
if (i > NF) {
# Output new 'option' lines to the intermediate file (out)
print "option READ_" $2, "requires READ_ANCILLARY_CHUNKS" reqread, "enables", $2, onoff >out
print "option WRITE_" $2, "requires WRITE_ANCILLARY_CHUNKS" reqwrite, "enables", $2, onoff >out
print "option READ_" opt, "requires READ_ANCILLARY_CHUNKS" reqread, "enables", opt enables , onoff >out
print "option WRITE_" opt, "requires WRITE_ANCILLARY_CHUNKS" reqwrite, "enables", opt enables, onoff >out
next
}
# Else hit the error handler below - bad line format!
@ -471,83 +534,7 @@ END{
exit 0
}
# Do the 'setting' values first, the algorithm the standard
# tree walk (O(1)) done in an O(2) while/for loop; interations
# settings x depth, outputing the deepest required macros
# first.
print "" >out
print "/* SETTINGS */" >out
print comment, "settings", cend >out
# Sort (in dfn.awk) on field 2, the setting name
print "PNG_DFN_START_SORT 2" >out
finished = 0
while (!finished) {
finished = 1
movement = 0 # done nothing
for (i in setting) if (!doneset[i]) {
nreqs = split(setting[i], r)
if (nreqs > 0) {
for (j=1; j<=nreqs; ++j) if (!doneset[r[j]]) {
break
}
if (j<=nreqs) {
finished = 0
continue # try a different setting
}
}
# All the requirements have been processed, output
# this setting.
if (deb) print "setting", i
deflt = defaults[i]
# A leading @ means leave it unquoted so the preprocessor
# can substitute the build time value
if (deflt ~ /^ @/)
deflt = " " subs substr(deflt, 3) sube
# Remove any spurious trailing spaces
sub(/ *$/,"",deflt)
print "" >out
print "/* setting: ", i >out
print " * requires:" setting[i] >out
print " * default: ", defaults[i] defltinfo, "*/" >out
if (defaults[i] == "") { # no default, only check if defined
print "#ifdef PNG_" i >out
}
for (j=1; j<=nreqs; ++j) {
print "# ifndef PNG_" r[j] >out
print error, i, "requires", r[j] end >out
print "# endif" >out
}
if (defaults[i] != "") { # default handling
print "#ifdef PNG_" i >out
}
# PNG_<i> is defined, so substitute the value:
print def i, subs "PNG_" i sube end >out
if (defaults[i] != "") {
print "#else /*default*/" >out
# And add the default definition for the benefit
# of later settings an options test:
print "# define PNG_" i deflt >out
print def i deflt end >out
}
print "#endif" >out
doneset[i] = 1
++movement
}
if (!finished && !movement) {
print "setting: loop or missing setting in 'requires', cannot process:"
for (i in setting) if (!doneset[i]) {
print " setting", i, "requires" setting[i]
}
exit 1
}
}
print "PNG_DFN_END_SORT" >out
print comment, "end of settings", cend >out
# Now do the options - somewhat more complex. The dependency
# Do the options first (allowing options to set settings). The dependency
# tree is thus:
#
# name > name
@ -639,7 +626,7 @@ END{
}
if (err) exit 1
# Sort options too
# Sort options:
print "PNG_DFN_START_SORT 2" >out
# option[i] is now the complete list of all the tokens we may
@ -679,8 +666,9 @@ END{
print "" >out
print "/* option:", i, option[i] >out
print " * requires: " requires[i] >out
print " * if: " iffs[i] >out
print " * enabled-by:" enabledby[i], "*/" >out
print " * if: " iffs[i] >out
print " * enabled-by:" enabledby[i] >out
print " * sets: " sets[i], "*/" >out
print "#undef PNG_on" >out
print "#define PNG_on 1" >out
@ -763,6 +751,21 @@ END{
print error, i, "is on: enabled by:" iffs[i] enabledby[i] ", requires" requires[i] end >out
} else if (i !~ /^ok_/) {
print def i sup >out
# Supported option, set required settings
nreqs = split(sets[i], r)
for (j=1; j<=nreqs; ++j) {
print "# ifdef PNG_set_" r[j] >out
# Some other option has already set a value:
print error, i, "sets", r[j] ": duplicate setting" end >out
print error, " previous value: " end "PNG_set_" r[j] >out
print "# else" >out
# Else set the default: note that this won't accept arbitrary
# values, the setval string must be acceptable to all the C
# compilers we use. That means it must be VERY simple; a number,
# a name or a string.
print "# define PNG_set_" r[j], setval[i " " r[j]] >out
print "# endif" >out
}
}
print "# endif /* definition */" >out
print "#endif /*requires, if*/" >out
@ -796,6 +799,93 @@ END{
print "PNG_DFN_END_SORT" >out
print comment, "end of options", cend >out
# Do the 'setting' values second, the algorithm the standard
# tree walk (O(1)) done in an O(2) while/for loop; interations
# settings x depth, outputing the deepest required macros
# first.
print "" >out
print "/* SETTINGS */" >out
print comment, "settings", cend >out
# Sort (in dfn.awk) on field 2, the setting name
print "PNG_DFN_START_SORT 2" >out
finished = 0
while (!finished) {
finished = 1
movement = 0 # done nothing
for (i in setting) if (!doneset[i]) {
nreqs = split(setting[i], r)
if (nreqs > 0) {
# By default assume the requires values are options, but if there
# is no option with that name check for a setting
for (j=1; j<=nreqs; ++j) if (option[r[j]] == "" && !doneset[r[j]]) {
break
}
if (j<=nreqs) {
finished = 0
continue # try a different setting
}
}
# All the requirements have been processed, output
# this setting.
if (deb) print "setting", i
deflt = defaults[i]
# Remove any spurious trailing spaces
sub(/ *$/,"",deflt)
# A leading @ means leave it unquoted so the preprocessor
# can substitute the build time value
if (deflt ~ /^ @/)
deflt = " " subs substr(deflt, 3) sube
print "" >out
print "/* setting: ", i >out
print " * requires:" setting[i] >out
print " * default: ", defaults[i] deflt, "*/" >out
for (j=1; j<=nreqs; ++j) {
if (option[r[j]] != "")
print "#ifndef PNG_" r[j] "_SUPPORTED" >out
else
print "#ifndef PNG_" r[j] >out
print error, i, "requires", r[j] end >out
print "# endif" >out
}
# The precedence is:
#
# 1) External definition; trumps:
# 2) Option 'sets' value; trumps:
# 3) Setting 'default'
#
print "#ifdef PNG_" i >out
# PNG_<i> is defined, so substitute the value:
print def i, subs "PNG_" i sube end >out
print "#else /* use default */" >out
print "# ifdef PNG_set_" i >out
# Value from an option 'sets' argument
print def i, subs "PNG_set_" i sube end >out
# This is so that subsequent tests on the setting work:
print "# define PNG_" i, "1" >out
if (defaults[i] != "") {
print "# else /*default*/" >out
print def i deflt end >out
print "# define PNG_" i, "1" >out
}
print "# endif /* defaults */" >out
print "#endif /* setting", i, "*/" >out
doneset[i] = 1
++movement
}
if (!finished && !movement) {
print "setting: loop or missing setting in 'requires', cannot process:"
for (i in setting) if (!doneset[i]) {
print " setting", i, "requires" setting[i]
}
exit 1
}
}
print "PNG_DFN_END_SORT" >out
print comment, "end of settings", cend >out
# Regular end - everything looks ok
if (protect != "") {
print start "#endif", "/*", protect, "*/" end >out

31
scripts/pnglibconf.dfa
View File

@ -27,7 +27,7 @@ file pnglibconf.h scripts/pnglibconf.dfa PNGLCONF_H
# The syntax is detailed in scripts/options.awk, this is a summary
# only:
#
# setting <name> [default]
# setting <name> [requires ...] [default]
# #define PNG_<name> <value> /* value comes from current setting */
# option <name> [requires ...] [if ...] [enables ...] [disabled]
# #define PNG_<name>_SUPPORTED if the requirements are met and
@ -191,12 +191,23 @@ option WRITE enables WRITE_INT_FUNCTIONS
setting FILTER_OPTIMIZATIONS
# This option turns on runtime checks for ARM NEON support, it is irrelevant
# on other platforms and it is irrelevant unless NEON code is turned on. Checks
# are on by default
option ARM_NEON_CHECK
# Implementation specific control of the optimizations, enabled by those
# hardware or software options that need it (typically when run-time choices
# must be made by the user)
option SET_OPTION disabled
# These options are specific to the ARM NEON hardware optimizations:
#
# ARM_NEON: the optimization itself
# ARM_NEON_API: allow the optimization to be switched on with png_set_hardware
# ARM_NEON_CHECK: compile a run-time check to see if Neon extensions are
# supported, this is poorly supported and deprectated - use the
# png_set_hardware API.
option ARM_NEON disabled,
sets FILTER_OPTIMIZATIONS png_init_filter_functions_neon
option ARM_NEON_API disabled enables SET_OPTION ARM_NEON
option ARM_NEON_CHECK disabled enables ARM_NEON
# Generic options - affect both read and write.
option WARNINGS
@ -369,6 +380,12 @@ option INCH_CONVERSIONS
option BUILD_GRAYSCALE_PALETTE
# This changes the default for the ARM NEON optimizations according to
# __ARM_NEON__
@#ifdef __ARM_NEON__
@# define PNG_ARM_NEON_SUPPORTED
@#endif
# IN DEVELOPMENT
# These are currently experimental features; define them if you want

325
scripts/pnglibconf.h.prebuilt
View File

@ -1,25 +1,176 @@
/* libpng STANDARD API DEFINITION */
/* 1.5.16beta06 STANDARD API DEFINITION */
/* pnglibconf.h - library build configuration */
/* Libpng 1.5.15beta06 - February 22, 2013 */
/* libpng version 1.5.16beta06 - May 12, 2013 */
/* Copyright (c) 1998-2012 Glenn Randers-Pehrson */
/* Copyright (c) 1998-2013 Glenn Randers-Pehrson */
/* This code is released under the libpng license. */
/* For conditions of distribution and use, see the disclaimer */
/* and license in png.h */
/* pnglibconf.h */
/* Machine generated file: DO NOT EDIT */
/* Derived from: scripts/pnglibconf.dfa */
/* If you edit this file by hand you must obey the rules expressed in */
/* pnglibconf.dfa with respect to the dependencies between the following */
/* symbols. It is much better to generate a new file using */
/* scripts/libpngconf.mak */
#ifndef PNGLCONF_H
#define PNGLCONF_H
/* options */
#define PNG_16BIT_SUPPORTED
#define PNG_ALIGNED_MEMORY_SUPPORTED
/*#undef PNG_ARM_NEON_API_SUPPORTED*/
/*#undef PNG_ARM_NEON_CHECK_SUPPORTED*/
/*#undef PNG_ARM_NEON_SUPPORTED*/
#define PNG_BENIGN_ERRORS_SUPPORTED
#define PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED
#define PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
#define PNG_CHECK_cHRM_SUPPORTED
#define PNG_CONSOLE_IO_SUPPORTED
#define PNG_CONVERT_tIME_SUPPORTED
#define PNG_EASY_ACCESS_SUPPORTED
/*#undef PNG_ERROR_NUMBERS_SUPPORTED*/
#define PNG_ERROR_TEXT_SUPPORTED
#define PNG_FIXED_POINT_SUPPORTED
#define PNG_FLOATING_ARITHMETIC_SUPPORTED
#define PNG_FLOATING_POINT_SUPPORTED
#define PNG_GET_PALETTE_MAX_SUPPORTED
#define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
#define PNG_INCH_CONVERSIONS_SUPPORTED
#define PNG_INFO_IMAGE_SUPPORTED
#define PNG_IO_STATE_SUPPORTED
#define PNG_MNG_FEATURES_SUPPORTED
#define PNG_POINTER_INDEXING_SUPPORTED
#define PNG_PROGRESSIVE_READ_SUPPORTED
#define PNG_READ_16BIT_SUPPORTED
#define PNG_READ_ALPHA_MODE_SUPPORTED
#define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
#define PNG_READ_BACKGROUND_SUPPORTED
#define PNG_READ_BGR_SUPPORTED
#define PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED
#define PNG_READ_COMPOSITE_NODIV_SUPPORTED
#define PNG_READ_COMPRESSED_TEXT_SUPPORTED
#define PNG_READ_EXPAND_16_SUPPORTED
#define PNG_READ_EXPAND_SUPPORTED
#define PNG_READ_FILLER_SUPPORTED
#define PNG_READ_GAMMA_SUPPORTED
#define PNG_READ_GET_PALETTE_MAX_SUPPORTED
#define PNG_READ_GRAY_TO_RGB_SUPPORTED
#define PNG_READ_INTERLACING_SUPPORTED
#define PNG_READ_INT_FUNCTIONS_SUPPORTED
#define PNG_READ_INVERT_ALPHA_SUPPORTED
#define PNG_READ_INVERT_SUPPORTED
#define PNG_READ_OPT_PLTE_SUPPORTED
#define PNG_READ_PACKSWAP_SUPPORTED
#define PNG_READ_PACK_SUPPORTED
#define PNG_READ_QUANTIZE_SUPPORTED
#define PNG_READ_RGB_TO_GRAY_SUPPORTED
#define PNG_READ_SCALE_16_TO_8_SUPPORTED
#define PNG_READ_SHIFT_SUPPORTED
#define PNG_READ_STRIP_16_TO_8_SUPPORTED
#define PNG_READ_STRIP_ALPHA_SUPPORTED
#define PNG_READ_SUPPORTED
#define PNG_READ_SWAP_ALPHA_SUPPORTED
#define PNG_READ_SWAP_SUPPORTED
#define PNG_READ_TEXT_SUPPORTED
#define PNG_READ_TRANSFORMS_SUPPORTED
#define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_READ_USER_CHUNKS_SUPPORTED
#define PNG_READ_USER_TRANSFORM_SUPPORTED
#define PNG_READ_bKGD_SUPPORTED
#define PNG_READ_cHRM_SUPPORTED
#define PNG_READ_gAMA_SUPPORTED
#define PNG_READ_hIST_SUPPORTED
#define PNG_READ_iCCP_SUPPORTED
#define PNG_READ_iTXt_SUPPORTED
#define PNG_READ_oFFs_SUPPORTED
#define PNG_READ_pCAL_SUPPORTED
#define PNG_READ_pHYs_SUPPORTED
#define PNG_READ_sBIT_SUPPORTED
#define PNG_READ_sCAL_SUPPORTED
#define PNG_READ_sPLT_SUPPORTED
#define PNG_READ_sRGB_SUPPORTED
#define PNG_READ_tEXt_SUPPORTED
#define PNG_READ_tIME_SUPPORTED
#define PNG_READ_tRNS_SUPPORTED
#define PNG_READ_zTXt_SUPPORTED
/*#undef PNG_SAFE_LIMITS_SUPPORTED*/
#define PNG_SAVE_INT_32_SUPPORTED
#define PNG_SEQUENTIAL_READ_SUPPORTED
#define PNG_SETJMP_SUPPORTED
#define PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED
#define PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
/*#undef PNG_SET_OPTION_SUPPORTED*/
#define PNG_SET_USER_LIMITS_SUPPORTED
#define PNG_STDIO_SUPPORTED
#define PNG_TEXT_SUPPORTED
#define PNG_TIME_RFC1123_SUPPORTED
#define PNG_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_USER_CHUNKS_SUPPORTED
#define PNG_USER_LIMITS_SUPPORTED
#define PNG_USER_MEM_SUPPORTED
#define PNG_USER_TRANSFORM_INFO_SUPPORTED
#define PNG_USER_TRANSFORM_PTR_SUPPORTED
#define PNG_WARNINGS_SUPPORTED
#define PNG_WRITE_16BIT_SUPPORTED
#define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
#define PNG_WRITE_BGR_SUPPORTED
#define PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
#define PNG_WRITE_COMPRESSED_TEXT_SUPPORTED
#define PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
#define PNG_WRITE_FILLER_SUPPORTED
#define PNG_WRITE_FILTER_SUPPORTED
#define PNG_WRITE_FLUSH_SUPPORTED
#define PNG_WRITE_GET_PALETTE_MAX_SUPPORTED
#define PNG_WRITE_INTERLACING_SUPPORTED
#define PNG_WRITE_INT_FUNCTIONS_SUPPORTED
#define PNG_WRITE_INVERT_ALPHA_SUPPORTED
#define PNG_WRITE_INVERT_SUPPORTED
#define PNG_WRITE_OPTIMIZE_CMF_SUPPORTED
#define PNG_WRITE_PACKSWAP_SUPPORTED
#define PNG_WRITE_PACK_SUPPORTED
#define PNG_WRITE_SHIFT_SUPPORTED
#define PNG_WRITE_SUPPORTED
#define PNG_WRITE_SWAP_ALPHA_SUPPORTED
#define PNG_WRITE_SWAP_SUPPORTED
#define PNG_WRITE_TEXT_SUPPORTED
#define PNG_WRITE_TRANSFORMS_SUPPORTED
#define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_WRITE_USER_TRANSFORM_SUPPORTED
#define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
#define PNG_WRITE_bKGD_SUPPORTED
#define PNG_WRITE_cHRM_SUPPORTED
#define PNG_WRITE_gAMA_SUPPORTED
#define PNG_WRITE_hIST_SUPPORTED
#define PNG_WRITE_iCCP_SUPPORTED
#define PNG_WRITE_iTXt_SUPPORTED
#define PNG_WRITE_oFFs_SUPPORTED
#define PNG_WRITE_pCAL_SUPPORTED
#define PNG_WRITE_pHYs_SUPPORTED
#define PNG_WRITE_sBIT_SUPPORTED
#define PNG_WRITE_sCAL_SUPPORTED
#define PNG_WRITE_sPLT_SUPPORTED
#define PNG_WRITE_sRGB_SUPPORTED
#define PNG_WRITE_tEXt_SUPPORTED
#define PNG_WRITE_tIME_SUPPORTED
#define PNG_WRITE_tRNS_SUPPORTED
#define PNG_WRITE_zTXt_SUPPORTED
#define PNG_bKGD_SUPPORTED
#define PNG_cHRM_SUPPORTED
#define PNG_gAMA_SUPPORTED
#define PNG_hIST_SUPPORTED
#define PNG_iCCP_SUPPORTED
#define PNG_iTXt_SUPPORTED
#define PNG_oFFs_SUPPORTED
#define PNG_pCAL_SUPPORTED
#define PNG_pHYs_SUPPORTED
#define PNG_sBIT_SUPPORTED
#define PNG_sCAL_SUPPORTED
#define PNG_sPLT_SUPPORTED
#define PNG_sRGB_SUPPORTED
#define PNG_tEXt_SUPPORTED
#define PNG_tIME_SUPPORTED
#define PNG_tRNS_SUPPORTED
#define PNG_zTXt_SUPPORTED
/* end of options */
/* settings */
#define PNG_API_RULE 0
#define PNG_CALLOC_SUPPORTED
@ -34,158 +185,4 @@
#define PNG_ZBUF_SIZE 8192
#define PNG_sCAL_PRECISION 5
/* end of settings */
/* options */
#define PNG_16BIT_SUPPORTED 1
#define PNG_ALIGNED_MEMORY_SUPPORTED
#define PNG_ARM_NEON_CHECK_SUPPORTED
#define PNG_BENIGN_ERRORS_SUPPORTED 1
#define PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED 1
#define PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED 1
#define PNG_CHECK_cHRM_SUPPORTED 1
#define PNG_CONSOLE_IO_SUPPORTED 1
#define PNG_CONVERT_tIME_SUPPORTED 1
#define PNG_EASY_ACCESS_SUPPORTED 1
/*#undef PNG_ERROR_NUMBERS_SUPPORTED*/
#define PNG_ERROR_TEXT_SUPPORTED 1
#define PNG_FIXED_POINT_SUPPORTED 1
#define PNG_FLOATING_ARITHMETIC_SUPPORTED 1
#define PNG_FLOATING_POINT_SUPPORTED 1
#define PNG_GET_PALETTE_MAX_SUPPORTED 1
#define PNG_HANDLE_AS_UNKNOWN_SUPPORTED 1
#define PNG_INCH_CONVERSIONS_SUPPORTED 1
#define PNG_INFO_IMAGE_SUPPORTED 1
#define PNG_IO_STATE_SUPPORTED 1
#define PNG_MNG_FEATURES_SUPPORTED 1
#define PNG_POINTER_INDEXING_SUPPORTED 1
#define PNG_PROGRESSIVE_READ_SUPPORTED 1
#define PNG_READ_16BIT_SUPPORTED 1
#define PNG_READ_ALPHA_MODE_SUPPORTED 1
#define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED 1
#define PNG_READ_BACKGROUND_SUPPORTED 1
#define PNG_READ_BGR_SUPPORTED 1
#define PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED 1
#define PNG_READ_COMPOSITE_NODIV_SUPPORTED 1
#define PNG_READ_COMPRESSED_TEXT_SUPPORTED 1
#define PNG_READ_EXPAND_16_SUPPORTED 1
#define PNG_READ_EXPAND_SUPPORTED 1
#define PNG_READ_FILLER_SUPPORTED 1
#define PNG_READ_GAMMA_SUPPORTED 1
#define PNG_READ_GET_PALETTE_MAX_SUPPORTED 1
#define PNG_READ_GRAY_TO_RGB_SUPPORTED 1
#define PNG_READ_INTERLACING_SUPPORTED 1
#define PNG_READ_INT_FUNCTIONS_SUPPORTED 1
#define PNG_READ_INVERT_ALPHA_SUPPORTED 1
#define PNG_READ_INVERT_SUPPORTED 1
#define PNG_READ_OPT_PLTE_SUPPORTED 1
#define PNG_READ_PACKSWAP_SUPPORTED 1
#define PNG_READ_PACK_SUPPORTED 1
#define PNG_READ_QUANTIZE_SUPPORTED 1
#define PNG_READ_RGB_TO_GRAY_SUPPORTED 1
#define PNG_READ_SCALE_16_TO_8_SUPPORTED 1
#define PNG_READ_SHIFT_SUPPORTED 1
#define PNG_READ_STRIP_16_TO_8_SUPPORTED 1
#define PNG_READ_STRIP_ALPHA_SUPPORTED 1
#define PNG_READ_SUPPORTED 1
#define PNG_READ_SWAP_ALPHA_SUPPORTED 1
#define PNG_READ_SWAP_SUPPORTED 1
#define PNG_READ_TEXT_SUPPORTED 1
#define PNG_READ_TRANSFORMS_SUPPORTED 1
#define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED 1
#define PNG_READ_USER_CHUNKS_SUPPORTED 1
#define PNG_READ_USER_TRANSFORM_SUPPORTED 1
#define PNG_READ_bKGD_SUPPORTED 1
#define PNG_READ_cHRM_SUPPORTED 1
#define PNG_READ_gAMA_SUPPORTED 1
#define PNG_READ_hIST_SUPPORTED 1
#define PNG_READ_iCCP_SUPPORTED 1
#define PNG_READ_iTXt_SUPPORTED 1
#define PNG_READ_oFFs_SUPPORTED 1
#define PNG_READ_pCAL_SUPPORTED 1
#define PNG_READ_pHYs_SUPPORTED 1
#define PNG_READ_sBIT_SUPPORTED 1
#define PNG_READ_sCAL_SUPPORTED 1
#define PNG_READ_sPLT_SUPPORTED 1
#define PNG_READ_sRGB_SUPPORTED 1
#define PNG_READ_tEXt_SUPPORTED 1
#define PNG_READ_tIME_SUPPORTED 1
#define PNG_READ_tRNS_SUPPORTED 1
#define PNG_READ_zTXt_SUPPORTED 1
/*#undef PNG_SAFE_LIMITS_SUPPORTED*/
#define PNG_SAVE_INT_32_SUPPORTED 1
#define PNG_SEQUENTIAL_READ_SUPPORTED 1
#define PNG_SETJMP_SUPPORTED 1
#define PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED 1
#define PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED 1
#define PNG_SET_USER_LIMITS_SUPPORTED 1
#define PNG_STDIO_SUPPORTED 1
#define PNG_TEXT_SUPPORTED 1
#define PNG_TIME_RFC1123_SUPPORTED 1
#define PNG_UNKNOWN_CHUNKS_SUPPORTED 1
#define PNG_USER_CHUNKS_SUPPORTED 1
#define PNG_USER_LIMITS_SUPPORTED 1
#define PNG_USER_MEM_SUPPORTED 1
#define PNG_USER_TRANSFORM_INFO_SUPPORTED 1
#define PNG_USER_TRANSFORM_PTR_SUPPORTED 1
#define PNG_WARNINGS_SUPPORTED 1
#define PNG_WRITE_16BIT_SUPPORTED 1
#define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED 1
#define PNG_WRITE_BGR_SUPPORTED 1
#define PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED 1
#define PNG_WRITE_COMPRESSED_TEXT_SUPPORTED 1
#define PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED 1
#define PNG_WRITE_FILLER_SUPPORTED 1
#define PNG_WRITE_FILTER_SUPPORTED 1
#define PNG_WRITE_FLUSH_SUPPORTED 1
#define PNG_WRITE_GET_PALETTE_MAX_SUPPORTED 1
#define PNG_WRITE_INTERLACING_SUPPORTED 1
#define PNG_WRITE_INT_FUNCTIONS_SUPPORTED 1
#define PNG_WRITE_INVERT_ALPHA_SUPPORTED 1
#define PNG_WRITE_INVERT_SUPPORTED 1
#define PNG_WRITE_OPTIMIZE_CMF_SUPPORTED 1
#define PNG_WRITE_PACKSWAP_SUPPORTED 1
#define PNG_WRITE_PACK_SUPPORTED 1
#define PNG_WRITE_SHIFT_SUPPORTED 1
#define PNG_WRITE_SUPPORTED 1
#define PNG_WRITE_SWAP_ALPHA_SUPPORTED 1
#define PNG_WRITE_SWAP_SUPPORTED 1
#define PNG_WRITE_TEXT_SUPPORTED 1
#define PNG_WRITE_TRANSFORMS_SUPPORTED 1
#define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED 1
#define PNG_WRITE_USER_TRANSFORM_SUPPORTED 1
#define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED 1
#define PNG_WRITE_bKGD_SUPPORTED 1
#define PNG_WRITE_cHRM_SUPPORTED 1
#define PNG_WRITE_gAMA_SUPPORTED 1
#define PNG_WRITE_hIST_SUPPORTED 1
#define PNG_WRITE_iCCP_SUPPORTED 1
#define PNG_WRITE_iTXt_SUPPORTED 1
#define PNG_WRITE_oFFs_SUPPORTED 1
#define PNG_WRITE_pCAL_SUPPORTED 1
#define PNG_WRITE_pHYs_SUPPORTED 1
#define PNG_WRITE_sBIT_SUPPORTED 1
#define PNG_WRITE_sCAL_SUPPORTED 1
#define PNG_WRITE_sPLT_SUPPORTED 1
#define PNG_WRITE_sRGB_SUPPORTED 1
#define PNG_WRITE_tEXt_SUPPORTED 1
#define PNG_WRITE_tIME_SUPPORTED 1
#define PNG_WRITE_tRNS_SUPPORTED 1
#define PNG_WRITE_zTXt_SUPPORTED 1
#define PNG_bKGD_SUPPORTED 1
#define PNG_cHRM_SUPPORTED 1
#define PNG_gAMA_SUPPORTED 1
#define PNG_hIST_SUPPORTED 1
#define PNG_iCCP_SUPPORTED 1
#define PNG_iTXt_SUPPORTED 1
#define PNG_oFFs_SUPPORTED 1
#define PNG_pCAL_SUPPORTED 1
#define PNG_pHYs_SUPPORTED 1
#define PNG_sBIT_SUPPORTED 1
#define PNG_sCAL_SUPPORTED 1
#define PNG_sPLT_SUPPORTED 1
#define PNG_sRGB_SUPPORTED 1
#define PNG_tEXt_SUPPORTED 1
#define PNG_tIME_SUPPORTED 1
#define PNG_tRNS_SUPPORTED 1
#define PNG_zTXt_SUPPORTED 1
/* end of options */
#endif /* PNGLCONF_H */

3
scripts/symbols.def
View File

@ -1,3 +1,4 @@
;Version 1.5.16beta06
;--------------------------------------------------------------
; LIBPNG symbol list as a Win32 DEF file
; Contains all the symbols that can be exported from libpng
@ -5,7 +6,6 @@
LIBRARY
EXPORTS
;Version 1.5.15beta06
png_access_version_number @1
png_set_sig_bytes @2
png_sig_cmp @3
@ -241,3 +241,4 @@ EXPORTS
png_set_cHRM_XYZ_fixed @233
png_set_check_for_invalid_index @234
png_get_palette_max @235
png_set_option @236

3
scripts/symbols.dfn
View File

@ -35,13 +35,14 @@
* defaulted to 'off' in scripts/pnglibconf.dfa
*
* Maintenance: if scripts/pnglibconf.dfa options are changed
* from, or to, 'off' this needs updating!
* from, or to, 'disabled' this needs updating!
*/
#define PNG_BENIGN_ERRORS_SUPPORTED
#define PNG_ERROR_NUMBERS_SUPPORTED
#define PNG_READ_BIG_ENDIAN_SUPPORTED /* should do nothing! */
#define PNG_INCH_CONVERSIONS_SUPPORTED
#define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
#define PNG_SET_OPTION_SUPPORTED
#undef PNG_H
#include "../png.h"