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[libpng10] Imported from libpng-1.0.16.tar

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Glenn Randers-Pehrson 2004-08-15 07:11:04 -05:00
parent 4fc3118b59
commit f47b4b1bf7
99 changed files with 3722 additions and 3976 deletions
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126
ANNOUNCE
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@ -1,28 +1,116 @@
Libpng 1.0.15 - October 3, 2002
Libpng 1.0.16 - August 15, 2004
This is a public release of libpng, intended for use in production codes.
Changes since the last public release (1.0.14):
Changes since the last public release (1.0.15):
Added code to contrib/gregbook/readpng2.c to ignore unused chunks.
Replaced toucan.png in contrib/gregbook (it has been corrupt since 1.0.11)
Removed some stray *.o files from contrib/gregbook.
Changed png_error() to png_warning() about "Too much data" in pngpread.c
and about "Extra compressed data" in pngrutil.c.
Prevent png_ptr->pass from exceeding 7 in png_push_finish_row().
Updated makefile.hggcc
Updated png.c and pnggccrd.c handling of return from png_mmx_support()
Only issue png_warning() about "Too much data" in pngpread.c when avail_in
is nonzero.
Updated makefiles to install a separate libpng.so.2 with its own rpath.
Revised makefiles to not remove previous minor versions of shared libraries.
Revised 13 makefiles to remove "-lz" and "-L$(ZLIBLIB)", etc., from shared
library loader directive.
Revised libpng-config script.
Relocated two misplaced PNGAPI lines in pngtest.c
Commented out warning about uninitialized mmx_support in pnggccrd.c.
Changed "IBMCPP__" flag to "__IBMCPP__" in pngconf.h.
Relocated two more misplaced PNGAPI lines in pngtest.c
Fixed memory overrun bug in png_do_read_filler() with 16-bit datastreams,
introduced in version 1.0.2.
Fixed potential overrun in pngerror.c by using strncpy instead of memcpy.
Revised makefile.macosx, makefile.dec, makefile.aix, and makefile.32sunu.
Changed the one instance of "ln -sf" to "ln -f -s" in each Sun makefile.
Fixed potential overrun in pngerror.c by using strncpy instead of memcpy.
Added "#!/bin/sh" at the top of configure, for recognition of the
'x' flag under Cygwin (Cosmin).
Optimized vacuous tests that silence compiler warnings, in png.c (Cosmin).
Added support for PNG_USER_CONFIG, in pngconf.h (Cosmin).
Fixed the special memory handler for Borland C under DOS, in pngmem.c
(Cosmin).
Removed some spurious assignments in pngrutil.c (Cosmin).
Replaced 65536 with 65536L, and 0xffff with 0xffffL, to silence warnings
on 16-bit platforms (Cosmin).
Enclosed shift op expressions in parentheses, to silence warnings (Cosmin).
Used proper type png_fixed_point, to avoid problems on 16-bit platforms,
in png_handle_sRGB() (Cosmin).
Added compression_type to png_struct, and optimized the window size
inside the deflate stream (Cosmin).
Fixed definition of isnonalpha(), in pngerror.c and pngrutil.c (Cosmin).
Fixed handling of unknown chunks that come after IDAT (Cosmin).
Allowed png_error() and png_warning() to work even if png_ptr == NULL
(Cosmin).
Replaced row_info->rowbytes with row_bytes in png_write_find_filter()
(Cosmin).
Fixed definition of PNG_LIBPNG_VER_DLLNUM (Simon-Pierre).
Used PNG_LIBPNG_VER and PNG_LIBPNG_VER_STRING instead of the hardcoded
values in png.c (Simon-Pierre, Cosmin).
Initialized png_libpng_ver[] with PNG_LIBPNG_VER_STRING (Simon-Pierre).
Replaced PNG_LIBPNG_VER_MAJOR with PNG_LIBPNG_VER_DLLNUM in png.rc
(Simon-Pierre).
Moved the definition of PNG_HEADER_VERSION_STRING near the definitions
of the other PNG_LIBPNG_VER_... symbols in png.h (Cosmin).
Relocated #ifndef PNGAPI guards in pngconf.h (Simon-Pierre, Cosmin).
Updated scripts/makefile.vc(a)win32 (Cosmin).
Updated the MSVC project (Simon-Pierre, Cosmin).
Updated the Borland C++ Builder project (Cosmin).
Avoided access to asm_flags in pngvcrd.c, if PNG_1_0_X is defined (Cosmin).
Commented out warning about uninitialized mmx_support in pngvcrd.c (Cosmin).
Removed scripts/makefile.bd32 and scripts/pngdef.pas (Cosmin).
Added extra guard around inclusion of Turbo C memory headers, in pngconf.h
(Cosmin).
Renamed projects/msvc/ to projects/visualc6/, and projects/borland/ to
projects/cbuilder5/ (Cosmin).
Moved projects/visualc6/png32ms.def to scripts/pngw32.def,
and projects/visualc6/png.rc to scripts/pngw32.rc (Cosmin).
Added projects/visualc6/pngtest.dsp; removed contrib/msvctest/ (Cosmin).
Updated contrib/visupng/VisualPng.dsp (Cosmin).
Updated contrib/visupng/cexcept.h to version 2.0.0 (Cosmin).
Added a separate distribution with "configure" and supporting files (Junichi).
Added user ability to change png_size_t via a PNG_SIZE_T macro.
Added png_sizeof() and png_convert_size() functions.
Added PNG_SIZE_MAX (maximum value of a png_size_t variable.
Added check in png_malloc_default() for (size_t)size != (png_uint_32)size
which would indicate an overflow.
Changed sPLT failure action from png_error to png_warning and abandon chunk.
Changed sCAL and iCCP failures from png_error to png_warning and abandon.
Added png_get_uint_31(png_ptr, buf) function.
Added PNG_UINT_32_MAX macro.
Renamed PNG_MAX_UINT to PNG_UINT_31_MAX.
Made png_zalloc() issue a png_warning and return NULL on potential
overflow.
Turn on PNG_NO_ZALLOC_ZERO by default in version 1.2.x
Revised "clobber list" in pnggccrd.c so it will compile under gcc-3.4.
Revised Borland portion of png_malloc() to return NULL or issue
png_error() according to setting of PNG_FLAG_MALLOC_NULL_MEM_OK.
Added PNG_NO_SEQUENTIAL_READ_SUPPORTED macro to conditionally remove
sequential read support.
Added some "#if PNG_WRITE_SUPPORTED" blocks.
#ifdef'ed out some redundancy in png_malloc_default().
Use png_malloc instead of png_zalloc to allocate the pallete.
Rearranged order of processing of color types in png_handle_tRNS().
Added PNG_ROWBYTES macro to calculate rowbytes without integer overflow.
Updated makefile.darwin and removed makefile.macosx from scripts directory.
Imposed default one million column, one-million row limits on the image
dimensions, and added png_set_user_limits() function and
PNG_SET_USER_LIMITS_SUPPORTED macro to override them.
Fixed wrong cast of returns from png_get_user_width|height_max().
Fixed buffer overflow vulnerability in png_handle_tRNS()
Fixed integer arithmetic overflow vulnerability in png_read_png().
Fixed some harmless bugs in png_handle_sBIT, etc, that would cause
duplicate chunk types to go undetected.
Changed some "keep the compiler happy" from empty statements to returns,
Revised makefile.darwin and makefile.solaris. Removed makefile.macosx.
Revised pngtest's png_debug_malloc() to use png_malloc() instead of
png_malloc_default() which is not supposed to be exported.
Fixed old bug in RGB to Gray transformation.
Fixed problem with 64-bit compilers by casting arguments to abs()
to png_int_32.
Changed "ln -sf" to "ln -f -s" in three makefiles (solaris, sco, so9).
Changed "HANDLE_CHUNK_*" to "PNG_HANDLE_CHUNK_*" (Cosmin)
Added "-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)" to 15 *NIX makefiles.
Added code to update the row_info->colortype in png_do_read_filler() (MSB).
Eliminated use of "abs()" in testing cHRM and gAMA values, to avoid
trouble with some 64-bit compilers. Created PNG_OUT_OF_RANGE() macro.
Revised documentation of png_set_keep_unknown_chunks().
Check handle_as_unknown status in pngpread.c, as in pngread.c previously.
Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_INTERNAL section of png.h
Added "rim" definitions for CONST4 and CONST6 in pnggccrd.c
Revised pngtest so memory allocation testing is only done when PNG_DEBUG==1.
Send comments/corrections/commendations to
png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu
png-implement@ccrc.wustl.edu or to glennrp@users.sourceforge.net
Glenn R-P

131
CHANGES
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@ -1177,8 +1177,137 @@ version 1.2.5 and 1.0.15 [October 3, 2002]
Revised makefile.macosx, makefile.darwin, makefile.hpgcc, and makefile.hpux,
and makefile.aix.
Relocated two misplaced PNGAPI lines in pngtest.c
version 1.2.6beta1 [October 22, 2002]
Commented out warning about uninitialized mmx_support in pnggccrd.c.
Changed "IBMCPP__" flag to "__IBMCPP__" in pngconf.h.
Relocated two more misplaced PNGAPI lines in pngtest.c
Fixed memory overrun bug in png_do_read_filler() with 16-bit datastreams,
introduced in version 1.0.2.
Revised makefile.macosx, makefile.dec, makefile.aix, and makefile.32sunu.
version 1.2.6beta2 [November 1, 2002]
Added libpng-config "--ldopts" output.
Added "AR=ar" and "ARFLAGS=rc" and changed "ar rc" to "$(AR) $(ARFLAGS)"
in makefiles.
version 1.2.6beta3 [July 18, 2004]
Reverted makefile changes from version 1.2.6beta2 and some of the changes
from version 1.2.6beta1; these will be postponed until version 1.2.7.
Version 1.2.6 is going to be a simple bugfix release.
Changed the one instance of "ln -sf" to "ln -f -s" in each Sun makefile.
Fixed potential overrun in pngerror.c by using strncpy instead of memcpy.
Added "#!/bin/sh" at the top of configure, for recognition of the
'x' flag under Cygwin (Cosmin).
Optimized vacuous tests that silence compiler warnings, in png.c (Cosmin).
Added support for PNG_USER_CONFIG, in pngconf.h (Cosmin).
Fixed the special memory handler for Borland C under DOS, in pngmem.c
(Cosmin).
Removed some spurious assignments in pngrutil.c (Cosmin).
Replaced 65536 with 65536L, and 0xffff with 0xffffL, to silence warnings
on 16-bit platforms (Cosmin).
Enclosed shift op expressions in parentheses, to silence warnings (Cosmin).
Used proper type png_fixed_point, to avoid problems on 16-bit platforms,
in png_handle_sRGB() (Cosmin).
Added compression_type to png_struct, and optimized the window size
inside the deflate stream (Cosmin).
Fixed definition of isnonalpha(), in pngerror.c and pngrutil.c (Cosmin).
Fixed handling of unknown chunks that come after IDAT (Cosmin).
Allowed png_error() and png_warning() to work even if png_ptr == NULL
(Cosmin).
Replaced row_info->rowbytes with row_bytes in png_write_find_filter()
(Cosmin).
Fixed definition of PNG_LIBPNG_VER_DLLNUM (Simon-Pierre).
Used PNG_LIBPNG_VER and PNG_LIBPNG_VER_STRING instead of the hardcoded
values in png.c (Simon-Pierre, Cosmin).
Initialized png_libpng_ver[] with PNG_LIBPNG_VER_STRING (Simon-Pierre).
Replaced PNG_LIBPNG_VER_MAJOR with PNG_LIBPNG_VER_DLLNUM in png.rc
(Simon-Pierre).
Moved the definition of PNG_HEADER_VERSION_STRING near the definitions
of the other PNG_LIBPNG_VER_... symbols in png.h (Cosmin).
Relocated #ifndef PNGAPI guards in pngconf.h (Simon-Pierre, Cosmin).
Updated scripts/makefile.vc(a)win32 (Cosmin).
Updated the MSVC project (Simon-Pierre, Cosmin).
Updated the Borland C++ Builder project (Cosmin).
Avoided access to asm_flags in pngvcrd.c, if PNG_1_0_X is defined (Cosmin).
Commented out warning about uninitialized mmx_support in pngvcrd.c (Cosmin).
Removed scripts/makefile.bd32 and scripts/pngdef.pas (Cosmin).
Added extra guard around inclusion of Turbo C memory headers, in pngconf.h
(Cosmin).
Renamed projects/msvc/ to projects/visualc6/, and projects/borland/ to
projects/cbuilder5/ (Cosmin).
Moved projects/visualc6/png32ms.def to scripts/pngw32.def,
and projects/visualc6/png.rc to scripts/pngw32.rc (Cosmin).
Added projects/visualc6/pngtest.dsp; removed contrib/msvctest/ (Cosmin).
Changed line endings to DOS style in cbuilder5 and visualc6 files, even
in the tar.* distributions (Cosmin).
Updated contrib/visupng/VisualPng.dsp (Cosmin).
Updated contrib/visupng/cexcept.h to version 2.0.0 (Cosmin).
Added a separate distribution with "configure" and supporting files (Junichi).
version 1.2.6beta4 [July 28, 2004]
Added user ability to change png_size_t via a PNG_SIZE_T macro.
Added png_sizeof() and png_convert_size() functions.
Added PNG_SIZE_MAX (maximum value of a png_size_t variable.
Added check in png_malloc_default() for (size_t)size != (png_uint_32)size
which would indicate an overflow.
Changed sPLT failure action from png_error to png_warning and abandon chunk.
Changed sCAL and iCCP failures from png_error to png_warning and abandon.
Added png_get_uint_31(png_ptr, buf) function.
Added PNG_UINT_32_MAX macro.
Renamed PNG_MAX_UINT to PNG_UINT_31_MAX.
Made png_zalloc() issue a png_warning and return NULL on potential
overflow.
Turn on PNG_NO_ZALLOC_ZERO by default in version 1.2.x
Revised "clobber list" in pnggccrd.c so it will compile under gcc-3.4.
Revised Borland portion of png_malloc() to return NULL or issue
png_error() according to setting of PNG_FLAG_MALLOC_NULL_MEM_OK.
Added PNG_NO_SEQUENTIAL_READ_SUPPORTED macro to conditionally remove
sequential read support.
Added some "#if PNG_WRITE_SUPPORTED" blocks.
#ifdef'ed out some redundancy in png_malloc_default().
Use png_malloc instead of png_zalloc to allocate the pallete.
version 1.2.6rc1 [August 4, 2004]
Fixed buffer overflow vulnerability in png_handle_tRNS()
Fixed integer arithmetic overflow vulnerability in png_read_png().
Fixed some harmless bugs in png_handle_sBIT, etc, that would cause
duplicate chunk types to go undetected.
Fixed some timestamps in the -config version
Rearranged order of processing of color types in png_handle_tRNS().
Added ROWBYTES macro to calculate rowbytes without integer overflow.
Updated makefile.darwin and removed makefile.macosx from scripts directory.
Imposed default one million column, one-million row limits on the image
dimensions, and added png_set_user_limits() function to override them.
Revised use of PNG_SET_USER_LIMITS_SUPPORTED macro.
Fixed wrong cast of returns from png_get_user_width|height_max().
Changed some "keep the compiler happy" from empty statements to returns,
version 1.2.6rc2 [August 7, 2004]
Revised makefile.darwin and makefile.solaris. Removed makefile.macosx.
Revised pngtest's png_debug_malloc() to use png_malloc() instead of
png_malloc_default() which is not supposed to be exported.
Fixed off-by-one error in one of the conversions to PNG_ROWBYTES() in
pngpread.c. Bug was introduced in 1.2.6rc1.
Fixed bug in RGB to RGBX transformation introduced in 1.2.6rc1.
Fixed old bug in RGB to Gray transformation.
Fixed problem with 64-bit compilers by casting arguments to abs()
to png_int_32.
Changed "ln -sf" to "ln -f -s" in three makefiles (solaris, sco, so9).
Changed "HANDLE_CHUNK_*" to "PNG_HANDLE_CHUNK_*" (Cosmin)
Added "-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)" to 15 *NIX makefiles.
Added code to update the row_info->colortype in png_do_read_filler() (MSB).
version 1.2.6rc3 [August 9, 2004]
Eliminated use of "abs()" in testing cHRM and gAMA values, to avoid
trouble with some 64-bit compilers. Created PNG_OUT_OF_RANGE() macro.
Revised documentation of png_set_keep_unknown_chunks().
Check handle_as_unknown status in pngpread.c, as in pngread.c previously.
Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_INTERNAL section of png.h
Added "rim" definitions for CONST4 and CONST6 in pnggccrd.c
version 1.2.6rc4 [August 10, 2004]
Fixed mistake in pngtest.c introduced in 1.2.6rc2 (declaration of
"pinfo" was out of place).
version 1.2.6rc5 [August 10, 2004]
Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_ASSEMBLER_CODE_SUPPORTED
section of png.h where they were inadvertently placed in version rc3.
version 1.2.6rc6 [August 15, 2004]
Revised pngtest so memory allocation testing is only done when PNG_DEBUG==1.
Send comments/corrections/commendations to
png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu
png-implement@ccrc.wustl.edu or to glennrp@users.sourceforge.net
Glenn R-P

35
INSTALL
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@ -1,5 +1,5 @@
Installing libpng version 1.0.15 - October 3, 2002
Installing libpng version 1.0.16 - August 15, 2004
Before installing libpng, you must first install zlib. zlib
can usually be found wherever you got libpng. zlib can be
@ -10,8 +10,8 @@ zlib.h and zconf.h include files that correspond to the
version of zlib that's installed.
You can rename the directories that you downloaded (they
might be called "libpng-1.0.15" or "lpng109" and "zlib-1.1.4"
or "zlib114") so that you have directories called "zlib" and "libpng".
might be called "libpng-1.0.16" or "lpng109" and "zlib-1.1.3"
or "zlib113") so that you have directories called "zlib" and "libpng".
Your directory structure should look like this:
@ -35,7 +35,6 @@ Your directory structure should look like this:
wince.txt
scripts
makefile.*
libpng*.in
pngtest.png
etc.
zlib
@ -65,8 +64,8 @@ The files that are presently available in the scripts directory
include
makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
makefile.linux => Linux/ELF makefile (gcc, creates libpng10.so.0.1.0.15)
makefile.gcmmx => Linux/ELF makefile (gcc, creates libpng10.so.0.1.0.15,
makefile.linux => Linux/ELF makefile (gcc, creates libpng10.so.0.1.0.16)
makefile.gcmmx => Linux/ELF makefile (gcc, creates libpng10.so.0.1.0.16,
uses assembler code tuned for Intel MMX platform)
makefile.gcc => Generic makefile (gcc, creates static libpng.a)
makefile.knr => Archaic UNIX Makefile that converts files with
@ -74,7 +73,7 @@ include
ftp://ftp.cs.wisc.edu/ghost)
makefile.aix => AIX/gcc makefile
makefile.cygwin => Cygwin/gcc makefile
makefile.darwin => Darwin makefile
makefile.darwin => Darwin makefile, can use on MacosX
makefile.dec => DEC Alpha UNIX makefile
makefile.hpgcc => FreeBSD makefile
makefile.hpgcc => HPUX makefile using gcc
@ -82,15 +81,14 @@ include
makefile.ibmc => IBM C/C++ version 3.x for Win32 and OS/2 (static)
makefile.intel => Intel C/C++ version 4.0 and later
libpng.icc => Project file for IBM VisualAge/C++ version 4.0 or later
makefile.macosx => MACOS X Makefile
makefile.netbsd => NetBSD/cc makefile, uses PNGGCCRD, makes libpng.so.
makefile.ne0bsd => NetBSD/cc makefile, uses PNGGCCRD, makes libpng0.so
makefile.openbsd => OpenBSD makefile
makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib)
makefile.sggcc => Silicon Graphics (gcc, creates libpng10.so.0.1.0.15)
makefile.sggcc => Silicon Graphics (gcc, creates libpng10.so.0.1.0.16)
makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile (gcc, creates libpng10.so.0.1.0.15)
makefile.so9 => Solaris 9 makefile (gcc, creates libpng10.so.0.1.0.15)
makefile.solaris => Solaris 2.X makefile (gcc, creates libpng10.so.0.1.0.16)
makefile.so9 => Solaris 9 makefile (gcc, creates libpng10.so.0.1.0.16)
makefile.32sunu => Sun Ultra 32-bit makefile
makefile.64sunu => Sun Ultra 64-bit makefile
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
@ -146,6 +144,17 @@ do that, run "make install" in the zlib directory first if necessary).
Some also allow you to run "make test-installed" after you have
run "make install".
If you encounter a compiler error message complaining about the
lines
__png.h__ already includes setjmp.h;
__dont__ include it again.;
This means you have compiled another module that includes setjmp.h,
which is hazardous because the two modules might not include exactly
the same setjmp.h. If you are sure that you know what you are doing
and that they are exactly the same, then you can comment out or
delete the two lines. Better yet, use the cexcept interface
instead, as demonstrated in contrib/visupng of the libpng distribution.
Further information can be found in the README and libpng.txt
files, in the individual makefiles, in png.h, in the README files in
subdirectories of the LIB directory, and the manual pages libpng.3 and png.5.
files, in the individual makefiles, in png.h, and the manual pages
libpng.3 and png.5.

2
KNOWNBUG
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@ -1,5 +1,5 @@
Known bugs in libpng version 1.0.15
Known bugs in libpng version 1.0.16
1. April 22, 2001: pnggccrd.c has been reported to crash on NetBSD when
reading interlaced PNG files, when assembler code is enabled but running

17
LICENSE
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@ -8,9 +8,16 @@ COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
If you modify libpng you may insert additional notices immediately following
this sentence.
libpng versions 1.0.7, July 1, 2000, through 1.0.15, October 3, 2002, are
Copyright (c) 2000-2002 Glenn Randers-Pehrson
and are distributed according to the same disclaimer and license as libpng-1.0.6
libpng version 1.2.6, August 15, 2004, is
Copyright (c) 2004 Glenn Randers-Pehrson, and is
distributed according to the same disclaimer and license as libpng-1.2.5
with the following individual added to the list of Contributing Authors
Cosmin Truta
libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are
Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.0.6
with the following individuals added to the list of Contributing Authors
Simon-Pierre Cadieux
@ -98,5 +105,5 @@ Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a
certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
randeg@alum.rpi.edu
October 3, 2002
glennrp@users.sourceforge.net
August 15, 2004

30
README
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@ -1,11 +1,11 @@
README for libpng 1.0.15 - October 3, 2002 (shared library 2.1)
README for libpng version 1.0.16 - August 15, 2004 (shared library 12.0)
See the note about version numbers near the top of png.h
See INSTALL for instructions on how to install libpng.
Libpng comes in two distribution formats. Get libpng-*.tar.gz if you
want UNIX-style line endings in the text files, or lpng*.zip if you want
DOS-style line endings.
Libpng comes in several distribution formats. Get libpng-*.tar.gz
or libpng-*.tar.bz2 if you want UNIX-style line endings in the text
files, or lpng*.zip if you want DOS-style line endings.
Version 0.89 was the first official release of libpng. Don't let the
fact that it's the first release fool you. The libpng library has been in
@ -104,7 +104,7 @@ fix. Please mention "libpng" somewhere in the subject line. Thanks.
This release was created and will be supported by myself (of course
based in a large way on Guy's and Andreas' earlier work), and the PNG group.
randeg@alum.rpi.edu
glennrp@users.sourceforge.net
png-implement@ccrc.wustl.edu
You can't reach Guy, the original libpng author, at the addresses
@ -187,9 +187,9 @@ Files in this distribution:
descrip.mms => VMS makefile for MMS or MMK
makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
makefile.linux => Linux/ELF makefile
(gcc, creates libpng10.so.0.1.0.15)
(gcc, creates libpng12.so.0.1.2.5)
makefile.gcmmx => Linux/ELF makefile (gcc, creates
libpng10.so.0.1.0.15, uses assembler code
libpng12.so.0.1.2.5, uses assembler code
tuned for Intel MMX platform)
makefile.gcc => Generic makefile (gcc, creates static libpng.a)
makefile.knr => Archaic UNIX Makefile that converts files with
@ -210,12 +210,12 @@ Files in this distribution:
makefile.ne0bsd => NetBSD/cc makefile, PNGGCCRD, makes libpng0.so
makefile.openbsd => OpenBSD makefile
makefile.sgi => Silicon Graphics IRIX (cc, creates static lib)
makefile.sggcc => Silicon Graphics (gcc, creates libpng10.so.0.1.0.15)
makefile.sggcc => Silicon Graphics (gcc, creates libpng12.so.0.1.2.5)
makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile
(gcc, creates libpng10.so.0.1.0.15)
(gcc, creates libpng12.so.0.1.2.5)
makefile.so9 => Solaris 9 makefile
(gcc, creates libpng10.so.0.1.0.15)
(gcc, creates libpng12.so.0.1.2.5)
makefile.32sunu => Sun Ultra 32-bit makefile
makefile.64sunu => Sun Ultra 64-bit makefile
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
@ -244,6 +244,16 @@ Files in this distribution:
makevms.com => VMS build script
pngdef.pas => Defines for a png32bd.dll with Borland C++ 4.5
SCOPTIONS.ppc => Used with smakefile.ppc
mangle => Directory containing scripts to build libpng12m.so:
mangle.in => Function-decoration macros added to png.h by the
makefiles.
makefile.linux => Linux/ELF makefile
(gcc, creates libpng12m.so.0.1.2.5)
makefile.gcmmx => Linux/ELF makefile (gcc, creates
libpng12.so.0m.1.2.5, uses assembler code
tuned for Intel MMX platform)
makefile.sgi => Silicon Graphics (cc, creates libpng12m.so)
makefile.sggcc => Silicon Graphics (gcc, creates libpng12m.so)
Good luck, and happy coding.

4
Y2KINFO
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@ -1,13 +1,13 @@
Y2K compliance in libpng:
=========================
October 3, 2002
August 15, 2004
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 1.0.15 are Y2K compliant. It is my belief that earlier
upward through 1.0.16 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer

13
configure vendored
View File

@ -1,6 +1,13 @@
#!/bin/sh
echo "
There is no \"configure\" script for Libpng-1.0.15. Instead, please
copy the appropriate makefile for your system from the \"scripts\"
directory. Read the INSTALL file for more details.
There is no \"configure\" script in this distribution of
libpng-1.0.16.
Instead, please copy the appropriate makefile for your system from the
\"scripts\" directory. Read the INSTALL file for more details.
Update, July 2004: you can get a "configure" based distribution
from the libpng distribution sites. Download the file
libpng-1.0.16-config.tar.gz
"

12
contrib/gregbook/Makefile.sgi
View File

@ -23,9 +23,9 @@
# macros --------------------------------------------------------------------
PNGINC = -I/usr/local/include/libpng10
PNGLIB = -L/usr/local/lib -lpng10 # dynamically linked against libpng
#PNGLIB = /usr/local/lib/libpng10.a # statically linked against libpng
PNGINC = -I/usr/local/include/libpng12
PNGLIB = -L/usr/local/lib -lpng12 # dynamically linked against libpng
#PNGLIB = /usr/local/lib/libpng12.a # statically linked against libpng
# or:
#PNGINC = -I../..
#PNGLIB = -L../.. -lpng
@ -52,8 +52,10 @@ WLIBS = $(PNGLIB) $(ZLIB)
CC = cc
LD = cc
RM = rm -f
CFLAGS = -O -fullwarn $(INCS)
LDFLAGS =
# ABI must be the same as that used to build libpng.
ABI=
CFLAGS = $(ABI) -O -fullwarn $(INCS)
LDFLAGS = $(ABI)
O = .o
E =

6
contrib/gregbook/Makefile.unx
View File

@ -23,9 +23,9 @@
# macros --------------------------------------------------------------------
PNGINC = -I/usr/local/include/libpng10
#PNGLIB = -L/usr/local/lib -lpng10 # dynamically linked against libpng
PNGLIB = /usr/local/lib/libpng10.a # statically linked against libpng
PNGINC = -I/usr/local/include/libpng12
#PNGLIB = -L/usr/local/lib -lpng12 # dynamically linked against libpng
PNGLIB = /usr/local/lib/libpng12.a # statically linked against libpng
# or:
#PNGINC = -I../libpng
#PNGLIB = -L../libpng -lpng

42
contrib/gregbook/readpng2.c
View File

@ -4,7 +4,13 @@
---------------------------------------------------------------------------
Copyright (c) 1998-2001 Greg Roelofs. All rights reserved.
Changelog:
- 1.01: initial public release
- 1.02: added code to skip unused chunks (GR-P)
---------------------------------------------------------------------------
Copyright (c) 1998-2002 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
@ -173,6 +179,40 @@ int readpng2_init(mainprog_info *mainprog_ptr)
return 2;
}
/* prepare the reader to ignore all recognized chunks whose data isn't
* going to be used, i.e., all chunks recognized by libpng except for
* IHDR, PLTE, IDAT, IEND, tRNS, bKGD, gAMA, and sRGB : */
#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
{
#ifndef HANDLE_CHUNK_NEVER
/* prior to libpng-1.2.5, this macro was internal, so we define it here. */
# define HANDLE_CHUNK_NEVER 1
#endif
/* these byte strings were copied from png.h.
* If a future libpng version recognizes more chunks, add them
* to this list. If a future version of readpng2.c recognizes
* more chunks, delete them from this list. */
png_byte png_chunk_types_to_ignore[]=
{ 99, 72, 82, 77, '\0', /* cHRM */
104, 73, 83, 84, '\0', /* hIST */
105, 67, 67, 80, '\0', /* iCCP */
105, 84, 88, 116, '\0', /* iTXt */
111, 70, 70, 115, '\0', /* oFFs */
112, 67, 65, 76, '\0', /* pCAL */
115, 67, 65, 76, '\0', /* sCAL */
112, 72, 89, 115, '\0', /* pHYs */
115, 66, 73, 84, '\0', /* sBIT */
115, 80, 76, 84, '\0', /* sPLT */
116, 69, 88, 116, '\0', /* tEXt */
116, 73, 77, 69, '\0', /* tIME */
122, 84, 88, 116, '\0'}; /* zTXt */
#define NUM_PNG_CHUNK_TYPES_TO_IGNORE 13
png_set_keep_unknown_chunks(png_ptr, HANDLE_CHUNK_NEVER,
png_chunk_types_to_ignore, NUM_PNG_CHUNK_TYPES_TO_IGNORE);
}
#endif
/* instead of doing png_init_io() here, now we set up our callback
* functions for progressive decoding */

1
contrib/gregbook/rpng2-x.c
View File

@ -594,6 +594,7 @@ static void rpng2_x_init(void)
* If we/it segfault instead, seems like a libpng bug... */
/* we're here via libpng callback, so if window fails, clean and bail */
printf("readpng2_cleanup.\n");
readpng2_cleanup(&rpng2_info);
rpng2_x_cleanup();
exit(2);

22
contrib/msvctest/README.txt
View File

@ -1,22 +0,0 @@
Microsoft Developer Studio Build File, Format Version 6.00 for
msvctest
Assumes that libpng DLLs and LIBs are in ..\..\projects\msvc\win32\libpng
Assumes that zlib DLLs and LIBs are in ..\..\projects\msvc\win32\zlib
To build:
1) On the main menu Select "Build|Set Active configuration".
Choose the configuration that corresponds to the library you want to test.
This library must have been built using the libpng MS project located in
the "mscv" subdirectory.
2) Select "Build|Clean"
3) Select "Build|Rebuild All"
4) The test results should appear in the "Build" pane of the Output Window.
Simon-Pierre Cadieux
Methodex Computer Systems Inc.

247
contrib/msvctest/msvctest.dsp
View File

@ -1,247 +0,0 @@
# Microsoft Developer Studio Project File - Name="msvctest" - Package Owner=<4>
# Microsoft Developer Studio Generated Build File, Format Version 6.00
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# TARGTYPE "Win32 (x86) Console Application" 0x0103
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!MESSAGE
!MESSAGE Possible choices for configuration are:
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!MESSAGE "msvctest - Win32 DLL" (based on "Win32 (x86) Console Application")
!MESSAGE "msvctest - Win32 Debug DLL" (based on "Win32 (x86) Console Application")
!MESSAGE "msvctest - Win32 ASM DLL" (based on "Win32 (x86) Console Application")
!MESSAGE "msvctest - Win32 Debug ASM DLL" (based on "Win32 (x86) Console Application")
!MESSAGE "msvctest - Win32 LIB" (based on "Win32 (x86) Console Application")
!MESSAGE "msvctest - Win32 Debug LIB" (based on "Win32 (x86) Console Application")
!MESSAGE
# Begin Project
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# End Special Build Tool
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# PROP BASE Use_MFC 0
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# End Special Build Tool
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PostBuild_Desc=[Run Test]
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# Name "msvctest - Win32 Debug DLL"
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# Name "msvctest - Win32 Debug ASM DLL"
# Name "msvctest - Win32 LIB"
# Name "msvctest - Win32 Debug LIB"
# Begin Group "Source Files"
# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
# Begin Source File
SOURCE=..\..\pngtest.c
# End Source File
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SOURCE=.\README.txt
# PROP Exclude_From_Build 1
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# PROP Default_Filter "h;hpp;hxx;hm;inl"
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# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"
# End Group
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29
contrib/msvctest/msvctest.dsw
View File

@ -1,29 +0,0 @@
Microsoft Developer Studio Workspace File, Format Version 6.00
# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!
###############################################################################
Project: "msvctest"=.\msvctest.dsp - Package Owner=<4>
Package=<5>
{{{
}}}
Package=<4>
{{{
}}}
###############################################################################
Global:
Package=<5>
{{{
}}}
Package=<3>
{{{
}}}
###############################################################################

6
contrib/pngminus/makefile.std
View File

@ -8,9 +8,9 @@ LD=$(CC)
RM=rm -f
#PNGPATH = /usr/local
#PNGINC = -I$(PNGPATH)/include/libpng10
#PNGLIB = -L$(PNGPATH)/lib -lpng10
#PNGLIBS = $(PNGPATH)/lib/libpng10.a
#PNGINC = -I$(PNGPATH)/include/libpng12
#PNGLIB = -L$(PNGPATH)/lib -lpng12
#PNGLIBS = $(PNGPATH)/lib/libpng12.a
PNGINC = -I../..
PNGLIB = -L../.. -lpng
PNGLIBS = ../../libpng.a

130
contrib/visupng/VisualPng.dsp
View File

@ -1,14 +1,10 @@
# Microsoft Developer Studio Project File - Name="VisualPng" - Package Owner=<4>
# Microsoft Developer Studio Generated Build File, Format Version 6.00
# Copyright 2000, Willem van Schaik. For conditions of distribution and
# use, see the copyright/license/disclaimer notice in png.h
# ** DO NOT EDIT **
# TARGTYPE "Win32 (x86) Application" 0x0101
CFG=VisualPng - Win32 Debug LIB
CFG=VisualPng - Win32 Debug
!MESSAGE This is not a valid makefile. To build this project using NMAKE,
!MESSAGE use the Export Makefile command and run
!MESSAGE
@ -17,14 +13,12 @@ CFG=VisualPng - Win32 Debug LIB
!MESSAGE You can specify a configuration when running NMAKE
!MESSAGE by defining the macro CFG on the command line. For example:
!MESSAGE
!MESSAGE NMAKE /f "VisualPng.mak" CFG="VisualPng - Win32 Debug LIB"
!MESSAGE NMAKE /f "VisualPng.mak" CFG="VisualPng - Win32 Debug"
!MESSAGE
!MESSAGE Possible choices for configuration are:
!MESSAGE
!MESSAGE "VisualPng - Win32 DLL" (based on "Win32 (x86) Application")
!MESSAGE "VisualPng - Win32 Debug DLL" (based on "Win32 (x86) Application")
!MESSAGE "VisualPng - Win32 LIB" (based on "Win32 (x86) Application")
!MESSAGE "VisualPng - Win32 Debug LIB" (based on "Win32 (x86) Application")
!MESSAGE "VisualPng - Win32 Release" (based on "Win32 (x86) Application")
!MESSAGE "VisualPng - Win32 Debug" (based on "Win32 (x86) Application")
!MESSAGE
# Begin Project
@ -35,90 +29,23 @@ CPP=cl.exe
MTL=midl.exe
RSC=rc.exe
!IF "$(CFG)" == "VisualPng - Win32 DLL"
!IF "$(CFG)" == "VisualPng - Win32 Release"
# PROP BASE Use_MFC 0
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# ADD CPP /nologo /W3 /GX /O2 /I "..\..\..\libpng" /I "..\..\..\zlib" /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /D "PNG_USE_DLL" /D "PNG_NO_STDIO" /D "PNG_NO_GLOBAL_ARRAYS" /FD /c
# SUBTRACT CPP /YX
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# ADD BASE LINK32 libpng10.lib zlibd.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"libc" /pdbtype:sept /libpath:"libpng" /libpath:"zlib"
# SUBTRACT BASE LINK32 /nodefaultlib
# ADD LINK32 libpng10d.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"libc" /pdbtype:sept /libpath:"..\..\projects\msvc\win32\libpng\dll_dbg"
# SUBTRACT LINK32 /nodefaultlib
# Begin Special Build Tool
OutDir=.\dll_dbg
SOURCE="$(InputPath)"
PostBuild_Cmds=set path=..\..\projects\msvc\win32\libpng\dll_dbg;..\..\projects\msvc\win32\zlib\dll_dbg; $(outdir)\VisualPng.exe ..\..\contrib\pngsuite\basn6a16.png
# End Special Build Tool
!ELSEIF "$(CFG)" == "VisualPng - Win32 LIB"
# PROP BASE Use_MFC 0
# PROP BASE Use_Debug_Libraries 0
# PROP BASE Output_Dir "VisualPng___Win32_LIB"
# PROP BASE Intermediate_Dir "VisualPng___Win32_LIB"
# PROP BASE Output_Dir "Release"
# PROP BASE Intermediate_Dir "Release"
# PROP BASE Ignore_Export_Lib 0
# PROP BASE Target_Dir ""
# PROP Use_MFC 0
# PROP Use_Debug_Libraries 0
# PROP Output_Dir "lib"
# PROP Intermediate_Dir "lib"
# PROP Output_Dir "Release"
# PROP Intermediate_Dir "Release"
# PROP Ignore_Export_Lib 0
# PROP Target_Dir ""
# ADD BASE CPP /nologo /W3 /GX /O2 /I "..\..\..\libpng" /I "..\..\..\zlib" /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /D "PNG_USE_DLL" /D "PNG_NO_STDIO" /D "PNG_NO_GLOBAL_ARRAYS" /FD /c
# ADD BASE CPP /nologo /W3 /O2 /I "..\.." /I "..\..\..\zlib" /D "WIN32" /D "NDEBUG" /D "PNG_NO_STDIO" /D "PNG_NO_GLOBAL_ARRAYS" /FD /c
# SUBTRACT BASE CPP /YX
# ADD CPP /nologo /W3 /GX /O2 /I "..\..\..\libpng" /I "..\..\..\zlib" /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /D "PNG_NO_STDIO" /D "PNG_NO_GLOBAL_ARRAYS" /FD /c
# ADD CPP /nologo /MD /W3 /O2 /I "..\.." /I "..\..\..\zlib" /D "WIN32" /D "NDEBUG" /D "PNG_NO_STDIO" /D "PNG_NO_GLOBAL_ARRAYS" /FD /c
# SUBTRACT CPP /YX
# ADD BASE MTL /nologo /D "NDEBUG" /mktyplib203 /win32
# ADD MTL /nologo /D "NDEBUG" /mktyplib203 /win32
@ -128,30 +55,31 @@ BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 libpng10.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386 /libpath:"..\..\projects\msvc\win32\libpng\dll"
# ADD LINK32 libpng.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386 /libpath:"..\..\projects\msvc\win32\libpng\lib"
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386
# ADD LINK32 ..\..\projects\visualc6\Win32_LIB_Release\libpng.lib ..\..\..\zlib\projects\visualc6\Win32_LIB_Release\zlib.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386
# Begin Special Build Tool
OutDir=.\lib
OutDir=.\Release
SOURCE="$(InputPath)"
PostBuild_Cmds=$(outdir)\VisualPng.exe ..\..\contrib\pngsuite\basn6a16.png
# End Special Build Tool
!ELSEIF "$(CFG)" == "VisualPng - Win32 Debug LIB"
!ELSEIF "$(CFG)" == "VisualPng - Win32 Debug"
# PROP BASE Use_MFC 0
# PROP BASE Use_Debug_Libraries 1
# PROP BASE Output_Dir "VisualPng___Win32_Debug_LIB"
# PROP BASE Intermediate_Dir "VisualPng___Win32_Debug_LIB"
# PROP BASE Output_Dir "Debug"
# PROP BASE Intermediate_Dir "Debug"
# PROP BASE Ignore_Export_Lib 0
# PROP BASE Target_Dir ""
# PROP Use_MFC 0
# PROP Use_Debug_Libraries 1
# PROP Output_Dir "lib_dbg"
# PROP Intermediate_Dir "lib_dbg"
# PROP Output_Dir "Debug"
# PROP Intermediate_Dir "Debug"
# PROP Ignore_Export_Lib 0
# PROP Target_Dir ""
# ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /I "..\..\..\libpng" /I "..\..\..\zlib" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "PNG_USE_DLL" /D "PNG_NO_STDIO" /D "PNG_NO_GLOBAL_ARRAYS" /YX /FD /GZ /c
# ADD CPP /nologo /W3 /Gm /GX /ZI /Od /I "..\..\..\libpng" /I "..\..\..\zlib" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "PNG_NO_STDIO" /D "PNG_NO_GLOBAL_ARRAYS" /FD /GZ /c
# ADD BASE CPP /nologo /W3 /Gm /ZI /Od /I "..\.." /I "..\..\..\zlib" /D "WIN32" /D "_DEBUG" /D "PNG_NO_STDIO" /D "PNG_NO_GLOBAL_ARRAYS" /FD /GZ /c
# SUBTRACT BASE CPP /YX
# ADD CPP /nologo /MDd /W3 /Gm /ZI /Od /I "..\.." /I "..\..\..\zlib" /D "WIN32" /D "_DEBUG" /D "PNG_NO_STDIO" /D "PNG_NO_GLOBAL_ARRAYS" /FD /GZ /c
# SUBTRACT CPP /YX
# ADD BASE MTL /nologo /D "_DEBUG" /mktyplib203 /win32
# ADD MTL /nologo /D "_DEBUG" /mktyplib203 /win32
@ -161,12 +89,10 @@ BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 libpng10d.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"libc" /pdbtype:sept /libpath:"..\..\projects\msvc\win32\libpng\dll_dbg"
# SUBTRACT BASE LINK32 /nodefaultlib
# ADD LINK32 libpng.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"libc" /pdbtype:sept /libpath:"..\..\projects\msvc\win32\libpng\lib_dbg"
# SUBTRACT LINK32 /nodefaultlib
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /pdbtype:sept
# ADD LINK32 ..\..\projects\visualc6\Win32_LIB_Release\libpng.lib ..\..\..\zlib\projects\visualc6\Win32_LIB_Release\zlib.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"msvcrt.lib" /pdbtype:sept
# Begin Special Build Tool
OutDir=.\lib_dbg
OutDir=.\Debug
SOURCE="$(InputPath)"
PostBuild_Cmds=$(outdir)\VisualPng.exe ..\..\contrib\pngsuite\basn6a16.png
# End Special Build Tool
@ -175,10 +101,8 @@ PostBuild_Cmds=$(outdir)\VisualPng.exe ..\..\contrib\pngsuite\basn6a16.png
# Begin Target
# Name "VisualPng - Win32 DLL"
# Name "VisualPng - Win32 Debug DLL"
# Name "VisualPng - Win32 LIB"
# Name "VisualPng - Win32 Debug LIB"
# Name "VisualPng - Win32 Release"
# Name "VisualPng - Win32 Debug"
# Begin Group "Source Files"
# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"

107
contrib/visupng/cexcept.h
View File

@ -1,17 +1,20 @@
/*===
cexcept.h 1.0.0 (2000-Jun-21-Wed)
cexcept.h 2.0.0 (2001-Jul-12-Thu)
Adam M. Costello <amc@cs.berkeley.edu>
An interface for exception-handling in ANSI C, developed jointly with
Cosmin Truta <cosmin@cs.toronto.edu>.
An interface for exception-handling in ANSI C (C89 and subsequent ISO
standards), developed jointly with Cosmin Truta <cosmin@cs.toronto.edu>.
Copyright (c) 2000 Adam M. Costello and Cosmin Truta. Everyone
Copyright (c) 2001 Adam M. Costello and Cosmin Truta. Everyone
is hereby granted permission to do whatever they like with this
file, provided that if they modify it they take reasonable steps to
avoid confusing or misleading people about the authors, version,
and terms of use of the derived file. The copyright holders make
no guarantees about the correctness of this file, and are not
responsible for any damage resulting from its use.
no guarantees regarding this file, and are not responsible for any
damage resulting from its use.
Only user-defined exceptions are supported, not "real" exceptions like
division by zero or memory segmentation violations.
If this interface is used by multiple .c files, they shouldn't include
this header file directly. Instead, create a wrapper header file that
@ -37,6 +40,10 @@ define_exception_type(type_name);
struct exception { int code; const char *msg; };
define_exception_type(struct exception);
Because throwing an exception causes the object to be copied (not
just once, but twice), programmers may wish to consider size when
choosing the exception type.
struct exception_context;
@ -62,7 +69,7 @@ struct exception_context *the_exception_context;
application may declare a variable of this name anywhere it likes
(inside a function, in a parameter list, or externally), and may
use whatever storage class specifiers (static, extern, etc) or type
qualifiers (const, volatile) it likes. Examples:
qualifiers (const, volatile, etc) it likes. Examples:
static struct exception_context
* const the_exception_context = &foo;
@ -107,15 +114,15 @@ Catch (expression) statement
confusion with the C++ keywords, which have subtly different
semantics.
A Try/Catch statement has a syntax similar to an if/else
statement, except that the parenthesized expression goes after
the second keyword rather than the first. As with if/else,
there are two clauses, each of which may be a simple statement
ending with a semicolon or a brace-enclosed compound statement.
But whereas the else clause is optional, the Catch clause is
required. The expression must be a modifiable lvalue (something
capable of being assigned to) of the exact same type passed to
define_exception_type().
A Try/Catch statement has a syntax similar to an if/else statement,
except that the parenthesized expression goes after the second
keyword rather than the first. As with if/else, there are two
clauses, each of which may be a simple statement ending with a
semicolon or a brace-enclosed compound statement. But whereas
the else clause is optional, the Catch clause is required. The
expression must be a modifiable lvalue (something capable of being
assigned to) of the same type (disregarding type qualifiers) that
was passed to define_exception_type().
If a Throw that uses the same exception context as the Try/Catch is
executed within the Try clause (typically within a function called
@ -125,9 +132,8 @@ Catch (expression) statement
such Throw is executed, then the assignment is not performed, and
the Catch clause is not executed.
Regardless of whether an exception is caught, the expression is
always evaluated exactly once, which is significant if it has side
effects, for example:
The expression is not evaluated unless and until the exception is
caught, which is significant if it has side effects, for example:
Try foo();
Catch (p[++i].e) { ... }
@ -183,62 +189,55 @@ is subject to change.
#include <setjmp.h>
#define define_exception_type(etype) \
struct exception__state { \
etype *exception; \
jmp_buf env; \
struct exception_context { \
jmp_buf *penv; \
int caught; \
volatile struct { etype etmp; } v; \
}
struct exception_context { \
struct exception__state *last; \
int caught; \
};
/* etmp must be volatile because the application might use automatic */
/* storage for the_exception_context, and etmp is modified between */
/* the calls to setjmp() and longjmp(). A wrapper struct is used to */
/* avoid warnings about a duplicate volatile qualifier in case etype */
/* already includes it. */
#define init_exception_context(ec) ((void)((ec)->last = 0))
#define Catch(e) exception__catch(&(e))
#define Catch_anonymous exception__catch(0)
#define init_exception_context(ec) ((void)((ec)->penv = 0))
#define Try \
{ \
struct exception__state *exception__p, exception__s; \
int exception__i; \
exception__p = the_exception_context->last; \
the_exception_context->last = &exception__s; \
for (exception__i = 0; ; exception__i = 1) \
if (exception__i) { \
if (setjmp(exception__s.env) == 0) { \
if (&exception__s)
jmp_buf *exception__prev, exception__env; \
exception__prev = the_exception_context->penv; \
the_exception_context->penv = &exception__env; \
if (setjmp(exception__env) == 0) { \
if (&exception__prev)
#define exception__catch(e_addr) \
#define exception__catch(action) \
else { } \
the_exception_context->caught = 0; \
} \
else the_exception_context->caught = 1; \
the_exception_context->last = exception__p; \
break; \
else { \
the_exception_context->caught = 1; \
} \
else exception__s.exception = e_addr; \
the_exception_context->penv = exception__prev; \
} \
if (!the_exception_context->caught) { } \
if (!the_exception_context->caught || action) { } \
else
#define Catch(e) exception__catch(((e) = the_exception_context->v.etmp, 0))
#define Catch_anonymous exception__catch(0)
/* Try ends with if(), and Catch begins and ends with else. This */
/* ensures that the Try/Catch syntax is really the same as the */
/* if/else syntax. */
/* */
/* We use &exception__s instead of 1 to appease compilers that */
/* We use &exception__prev instead of 1 to appease compilers that */
/* warn about constant expressions inside if(). Most compilers */
/* should still recognize that &exception__s is never zero and avoid */
/* generating test code. */
/* */
/* We use the variable exception__i to start the loop at the bottom, */
/* rather than jump into the loop using a switch statement, to */
/* appease compilers that warn about jumping into loops. */
/* should still recognize that &exception__prev is never zero and */
/* avoid generating test code. */
#define Throw \
for (;; longjmp(the_exception_context->last->env, 1)) \
if (the_exception_context->last->exception) \
*the_exception_context->last->exception =
for (;; longjmp(*the_exception_context->penv, 1)) \
the_exception_context->v.etmp =
#endif /* CEXCEPT_H */

3
example.c
View File

@ -631,7 +631,7 @@ void write_png(char *file_name /* , ... other image information ... */)
/* set the palette if there is one. REQUIRED for indexed-color images */
palette = (png_colorp)png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH
* sizeof (png_color));
* png_sizeof (png_color));
/* ... set palette colors ... */
png_set_PLTE(png_ptr, info_ptr, palette, PNG_MAX_PALETTE_LENGTH);
/* You must not free palette here, because png_set_PLTE only makes a link to
@ -741,6 +741,7 @@ void write_png(char *file_name /* , ... other image information ... */)
png_uint_32 k, height, width;
png_byte image[height][width*bytes_per_pixel];
png_bytep row_pointers[height];
for (k = 0; k < height; k++)
row_pointers[k] = image + k*width*bytes_per_pixel;

229
libpng.3
View File

@ -1,6 +1,6 @@
.TH LIBPNG 3 "October 3, 2002"
.TH LIBPNG 3 "August 15, 2004"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.15
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.16
.SH SYNOPSIS
\fI\fB
@ -266,10 +266,18 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.0.15
\fI\fB
\fBpng_uint_32 png_get_user_height_max( png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_voidp png_get_user_transform_ptr (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_user_width_max (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_valid (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIflag\fP\fB);\fP
\fI\fB
@ -650,6 +658,10 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.0.15
\fI\fB
\fBvoid png_set_user_limits (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIuser_width_max\fP\fB, png_uint_32 \fIuser_height_max\fP\fB);\fP
\fI\fB
\fBvoid png_set_user_transform_info (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIuser_transform_ptr\fP\fB, int \fP\fIuser_transform_depth\fP\fB, int \fIuser_transform_channels\fP\fB);\fP
\fI\fB
@ -761,10 +773,10 @@ Following is a copy of the libpng.txt file that accompanies libpng.
.SH LIBPNG.TXT
libpng.txt - A description on how to use and modify libpng
libpng version 1.0.15 - October 3, 2002
libpng version 1.0.16 - August 15, 2004
Updated and distributed by Glenn Randers-Pehrson
<randeg@alum.rpi.edu>
Copyright (c) 1998-2002 Glenn Randers-Pehrson
<glennrp@users.sourceforge.net>
Copyright (c) 1998-2004 Glenn Randers-Pehrson
For conditions of distribution and use, see copyright
notice in png.h.
@ -1061,6 +1073,28 @@ To inform libpng about your function, use
png_set_read_status_fn(png_ptr, read_row_callback);
%-%.SS Width and height limits
%-%
%-%The PNG specification allows the width and height of an image to be as
%-%large as 2^31-1 (0x7fffffff), or about 2.147 billion rows and columns.
%-%Since very few applications really need to process such large images,
%-%we have imposed an arbitrary 1-million limit on rows and columns.
%-%Larger images will be rejected immediately with a png_error() call. If
%-%you wish to override this limit, you can use
%-%
%-% png_set_user_limits(png_ptr, width_max, height_max);
%-%
%-%to set your own limits, or use width_max = height_max = 0x7fffffffL
%-%to allow all valid dimensions (libpng may reject some very large images
%-%anyway because of potential buffer overflow conditions).
%-%
%-%You should put this statement after you create the PNG structure and
%-%before calling png_read_info(), png_read_png(), or png_process_data().
%-%If you need to retrieve the limits that are being applied, use
%-%
%-% width_max = png_get_user_width_max(png_ptr);
%-% height_max = png_get_user_height_max(png_ptr);
%-%
.SS Unknown-chunk handling
Now you get to set the way the library processes unknown chunks in the
@ -1069,23 +1103,31 @@ behavior is that known chunks will be parsed into information in
various info_ptr members; unknown chunks will be discarded. To change
this, you can call:
png_set_keep_unknown_chunks(png_ptr, info_ptr, keep,
png_set_keep_unknown_chunks(png_ptr, keep,
chunk_list, num_chunks);
keep - 0: do not keep
1: keep only if safe-to-copy
2: keep even if unsafe-to-copy
keep - 0: do not handle as unknown
1: do not keep
2: keep only if safe-to-copy
3: keep even if unsafe-to-copy
You can use these definitions:
PNG_HANDLE_CHUNK_AS_DEFAULT 0
PNG_HANDLE_CHUNK_NEVER 1
PNG_HANDLE_CHUNK_IF_SAFE 2
PNG_HANDLE_CHUNK_ALWAYS 3
chunk_list - list of chunks affected (a byte string,
five bytes per chunk, NULL or '\0' if
num_chunks is 0)
num_chunks - number of chunks affected; if 0, all
unknown chunks are affected
unknown chunks are affected. If nonzero,
only the chunks in the list are affected
Unknown chunks declared in this way will be saved as raw data onto a
list of png_unknown_chunk structures. If a chunk that is normally
known to libpng is named in the list, it will be handled as unknown,
according to the "keep" directive. If a chunk is named in successive
instances of png_set_keep_unknown_chunks(), the final instance will
take precedence.
take precedence. The IHDR and IEND chunks should not be named in
chunk_list; if they are, libpng will process them normally anyway.
.SS The high-level read interface
@ -1140,8 +1182,14 @@ where row_pointers is an array of pointers to the pixel data for each row:
If you know your image size and pixel size ahead of time, you can allocate
row_pointers prior to calling png_read_png() with
if (height > PNG_UINT_32_MAX/png_sizeof(png_byte))
png_error (png_ptr,
"Image is too tall to process in memory");
if (width > PNG_UINT_32_MAX/pixel_size)
png_error (png_ptr,
"Image is too wide to process in memory");
row_pointers = png_malloc(png_ptr,
height*sizeof(png_bytep));
height*png_sizeof(png_bytep));
for (int i=0; i<height, i++)
row_pointers[i]=png_malloc(png_ptr,
width*pixel_size);
@ -3081,9 +3129,9 @@ Your replacement memory functions must have prototypes as follows:
png_size_t size);
void free_fn(png_structp png_ptr, png_voidp ptr);
Your malloc_fn() should return NULL in case of failure. The png_malloc()
function will call png_error() if it receives a NULL from the system
memory allocator or from your replacement malloc_fn().
Your malloc_fn() must return NULL in case of failure. The png_malloc()
function will normally call png_error() if it receives a NULL from the
system memory allocator or from your replacement malloc_fn().
Input/Output in libpng is done through png_read() and png_write(),
which currently just call fread() and fwrite(). The FILE * is stored in
@ -3414,6 +3462,125 @@ When PNG_DEBUG = 1, the macros are defined, but only png_debug statements
having level = 0 will be printed. There aren't any such statements in
this version of libpng, but if you insert some they will be printed.
%-%.SH VI. Runtime optimization
%-%
%-%A new feature in libpng 1.2.0 is the ability to dynamically switch between
%-%standard and optimized versions of some routines. Currently these are
%-%limited to three computationally intensive tasks when reading PNG files:
%-%decoding row filters, expanding interlacing, and combining interlaced or
%-%transparent row data with previous row data. Currently the optimized
%-%versions are available only for x86 (Intel, AMD, etc.) platforms with
%-%MMX support, though this may change in future versions. (For example,
%-%the non-MMX assembler optimizations for zlib might become similarly
%-%runtime-selectable in future releases, in which case libpng could be
%-%extended to support them. Alternatively, the compile-time choice of
%-%floating-point versus integer routines for gamma correction might become
%-%runtime-selectable.)
%-%
%-%Because such optimizations tend to be very platform- and compiler-dependent,
%-%both in how they are written and in how they perform, the new runtime code
%-%in libpng has been written to allow programs to query, enable, and disable
%-%either specific optimizations or all such optimizations. For example, to
%-%enable all possible optimizations (bearing in mind that some "optimizations"
%-%may actually run more slowly in rare cases):
%-%
%-% #if defined(PNG_LIBPNG_VER) && (PNG_LIBPNG_VER >= 10200)
%-% png_uint_32 mask, flags;
%-%
%-% flags = png_get_asm_flags(png_ptr);
%-% mask = png_get_asm_flagmask(PNG_SELECT_READ | PNG_SELECT_WRITE);
%-% png_set_asm_flags(png_ptr, flags | mask);
%-% #endif
%-%
%-%To enable only optimizations relevant to reading PNGs, use PNG_SELECT_READ
%-%by itself when calling png_get_asm_flagmask(); similarly for optimizing
%-%only writing. To disable all optimizations:
%-%
%-% #if defined(PNG_LIBPNG_VER) && (PNG_LIBPNG_VER >= 10200)
%-% flags = png_get_asm_flags(png_ptr);
%-% mask = png_get_asm_flagmask(PNG_SELECT_READ | PNG_SELECT_WRITE);
%-% png_set_asm_flags(png_ptr, flags & ~mask);
%-% #endif
%-%
%-%To enable or disable only MMX-related features, use png_get_mmx_flagmask()
%-%in place of png_get_asm_flagmask(). The mmx version takes one additional
%-%parameter:
%-%
%-% #if defined(PNG_LIBPNG_VER) && (PNG_LIBPNG_VER >= 10200)
%-% int selection = PNG_SELECT_READ | PNG_SELECT_WRITE;
%-% int compilerID;
%-%
%-% mask = png_get_mmx_flagmask(selection, &compilerID);
%-% #endif
%-%
%-%On return, compilerID will indicate which version of the MMX assembler
%-%optimizations was compiled. Currently two flavors exist: Microsoft
%-%Visual C++ (compilerID == 1) and GNU C (a.k.a. gcc/gas, compilerID == 2).
%-%On non-x86 platforms or on systems compiled without MMX optimizations, a
%-%value of -1 is used.
%-%
%-%Note that both png_get_asm_flagmask() and png_get_mmx_flagmask() return
%-%all valid, settable optimization bits for the version of the library that's
%-%currently in use. In the case of shared (dynamically linked) libraries,
%-%this may include optimizations that did not exist at the time the code was
%-%written and compiled. It is also possible, of course, to enable only known,
%-%specific optimizations; for example:
%-%
%-% #if defined(PNG_LIBPNG_VER) && (PNG_LIBPNG_VER >= 10200)
%-% flags = PNG_ASM_FLAG_MMX_READ_COMBINE_ROW \
%-% | PNG_ASM_FLAG_MMX_READ_INTERLACE \
%-% | PNG_ASM_FLAG_MMX_READ_FILTER_SUB \
%-% | PNG_ASM_FLAG_MMX_READ_FILTER_UP \
%-% | PNG_ASM_FLAG_MMX_READ_FILTER_AVG \
%-% | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ;
%-% png_set_asm_flags(png_ptr, flags);
%-% #endif
%-%
%-%This method would enable only the MMX read-optimizations available at the
%-%time of libpng 1.2.0's release, regardless of whether a later version of
%-%the DLL were actually being used. (Also note that these functions did not
%-%exist in versions older than 1.2.0, so any attempt to run a dynamically
%-%linked app on such an older version would fail.)
%-%
%-%To determine whether the processor supports MMX instructions at all, use
%-%the png_mmx_support() function:
%-%
%-% #if defined(PNG_LIBPNG_VER) && (PNG_LIBPNG_VER >= 10200)
%-% mmxsupport = png_mmx_support();
%-% #endif
%-%
%-%It returns -1 if MMX support is not compiled into libpng, 0 if MMX code
%-%is compiled but MMX is not supported by the processor, or 1 if MMX support
%-%is fully available. Note that png_mmx_support(), png_get_mmx_flagmask(),
%-%and png_get_asm_flagmask() all may be called without allocating and ini-
%-%tializing any PNG structures (for example, as part of a usage screen or
%-%"about" box).
%-%
%-%The following code can be used to prevent an application from using the
%-%thread_unsafe features, even if libpng was built with PNG_THREAD_UNSAFE_OK
%-%defined:
%-%
%-%#if defined(PNG_USE_PNGGCCRD) && defined(PNG_ASSEMBLER_CODE_SUPPORTED) \
%-% && defined(PNG_THREAD_UNSAFE_OK)
%-% /* Disable thread-unsafe features of pnggccrd */
%-% if (png_access_version() >= 10200)
%-% {
%-% png_uint_32 mmx_disable_mask = 0;
%-% png_uint_32 asm_flags;
%-%
%-% mmx_disable_mask |= ( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW \
%-% | PNG_ASM_FLAG_MMX_READ_FILTER_SUB \
%-% | PNG_ASM_FLAG_MMX_READ_FILTER_AVG \
%-% | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH );
%-% asm_flags = png_get_asm_flags(png_ptr);
%-% png_set_asm_flags(png_ptr, asm_flags & ~mmx_disable_mask);
%-% }
%-%#endif
%-%
%-%For more extensive examples of runtime querying, enabling and disabling
%-%of optimized features, see contrib/gregbook/readpng2.c in the libpng
%-%source-code distribution.
%-%
.SH VI. MNG support
The MNG specification (available at http://www.libpng.org/pub/mng) allows
@ -3427,7 +3594,7 @@ png_permit_mng_features() function:
PNG_FLAG_MNG_EMPTY_PLTE
PNG_FLAG_MNG_FILTER_64
PNG_ALL_MNG_FEATURES
feature_set is a png_byte that is the logical AND of
feature_set is a png_uint_32 that is the logical AND of
your mask with the set of MNG features that is
supported by the version of libpng that you are using.
@ -3490,13 +3657,13 @@ application:
.SH VII. Y2K Compliance in libpng
October 3, 2002
August 15, 2004
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 1.0.15 are Y2K compliant. It is my belief that earlier
upward through 1.0.16 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer that
@ -3632,10 +3799,13 @@ the first widely used release:
1.0.14 10 10014 10.so.0.1.0.14
1.2.4 13 10204 12.so.0.1.2.4
1.2.5beta1-2 13 10205 12.so.0.1.2.5beta1-2
1.0.15rc1-3 10 10015 10.so.0.1.0.15rc1-3
1.2.5rc1-3 13 10205 12.so.0.1.2.5rc1-3
1.0.15rc1 10 10015 10.so.0.1.0.15rc1
1.0.15 10 10015 10.so.0.1.0.15
1.2.5 13 10205 12.so.0.1.2.5
1.2.6beta1-4 13 10206 12.so.0.1.2.6beta1-4
1.2.6rc1-5 13 10206 12.so.0.1.2.6rc1-5
1.0.16 10 10016 10.so.0.1.0.16
1.2.6 13 10206 12.so.0.1.2.6
Henceforth the source version will match the shared-library minor
and patch numbers; the shared-library major version number will be
@ -3685,7 +3855,7 @@ and this library, the specification takes precedence.
.SH AUTHORS
This man page: Glenn Randers-Pehrson
<randeg@alum.rpi.edu>
<glennrp@users.sourceforge.net>
The contributing authors would like to thank all those who helped
with testing, bug fixes, and patience. This wouldn't have been
@ -3693,9 +3863,9 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.0.15 - October 3, 2002:
Libpng version 1.0.16 - August 15, 2004:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (randeg@alum.rpi.edu).
Currently maintained by Glenn Randers-Pehrson (glennrp@users.sourceforge.net).
Supported by the PNG development group
.br
@ -3710,7 +3880,14 @@ included in the libpng distribution, the latter shall prevail.)
If you modify libpng you may insert additional notices immediately following
this sentence.
libpng versions 1.0.7, July 1, 2000, through 1.0.15, October 3, 2002, are
libpng version 1.2.6, August 15, 2004, is
Copyright (c) 2004 Glenn Randers-Pehrson, and is
distributed according to the same disclaimer and license as libpng-1.2.5
with the following individual added to the list of Contributing Authors
Cosmin Truta
libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are
Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.0.6
with the following individuals added to the list of Contributing Authors
@ -3801,8 +3978,8 @@ Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a
certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
randeg@alum.rpi.edu
October 3, 2002
glennrp@users.sourceforge.net
August 15, 2004
.\" end of man page

46
libpng.txt
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@ -1,9 +1,9 @@
libpng.txt - A description on how to use and modify libpng
libpng version 1.0.15 - October 3, 2002
libpng version 1.0.16 - August 15, 2004
Updated and distributed by Glenn Randers-Pehrson
<randeg@alum.rpi.edu>
Copyright (c) 1998-2002 Glenn Randers-Pehrson
<glennrp@users.sourceforge.net>
Copyright (c) 1998-2004 Glenn Randers-Pehrson
For conditions of distribution and use, see copyright
notice in png.h.
@ -308,23 +308,31 @@ behavior is that known chunks will be parsed into information in
various info_ptr members; unknown chunks will be discarded. To change
this, you can call:
png_set_keep_unknown_chunks(png_ptr, info_ptr, keep,
png_set_keep_unknown_chunks(png_ptr, keep,
chunk_list, num_chunks);
keep - 0: do not keep
1: keep only if safe-to-copy
2: keep even if unsafe-to-copy
keep - 0: do not handle as unknown
1: do not keep
2: keep only if safe-to-copy
3: keep even if unsafe-to-copy
You can use these definitions:
PNG_HANDLE_CHUNK_AS_DEFAULT 0
PNG_HANDLE_CHUNK_NEVER 1
PNG_HANDLE_CHUNK_IF_SAFE 2
PNG_HANDLE_CHUNK_ALWAYS 3
chunk_list - list of chunks affected (a byte string,
five bytes per chunk, NULL or '\0' if
num_chunks is 0)
num_chunks - number of chunks affected; if 0, all
unknown chunks are affected
unknown chunks are affected. If nonzero,
only the chunks in the list are affected
Unknown chunks declared in this way will be saved as raw data onto a
list of png_unknown_chunk structures. If a chunk that is normally
known to libpng is named in the list, it will be handled as unknown,
according to the "keep" directive. If a chunk is named in successive
instances of png_set_keep_unknown_chunks(), the final instance will
take precedence.
take precedence. The IHDR and IEND chunks should not be named in
chunk_list; if they are, libpng will process them normally anyway.
The high-level read interface
@ -379,8 +387,14 @@ where row_pointers is an array of pointers to the pixel data for each row:
If you know your image size and pixel size ahead of time, you can allocate
row_pointers prior to calling png_read_png() with
if (height > PNG_UINT_32_MAX/png_sizeof(png_byte))
png_error (png_ptr,
"Image is too tall to process in memory");
if (width > PNG_UINT_32_MAX/pixel_size)
png_error (png_ptr,
"Image is too wide to process in memory");
row_pointers = png_malloc(png_ptr,
height*sizeof(png_bytep));
height*png_sizeof(png_bytep));
for (int i=0; i<height, i++)
row_pointers[i]=png_malloc(png_ptr,
width*pixel_size);
@ -2320,9 +2334,9 @@ Your replacement memory functions must have prototypes as follows:
png_size_t size);
void free_fn(png_structp png_ptr, png_voidp ptr);
Your malloc_fn() should return NULL in case of failure. The png_malloc()
function will call png_error() if it receives a NULL from the system
memory allocator or from your replacement malloc_fn().
Your malloc_fn() must return NULL in case of failure. The png_malloc()
function will normally call png_error() if it receives a NULL from the
system memory allocator or from your replacement malloc_fn().
Input/Output in libpng is done through png_read() and png_write(),
which currently just call fread() and fwrite(). The FILE * is stored in
@ -2666,7 +2680,7 @@ png_permit_mng_features() function:
PNG_FLAG_MNG_EMPTY_PLTE
PNG_FLAG_MNG_FILTER_64
PNG_ALL_MNG_FEATURES
feature_set is a png_byte that is the logical AND of
feature_set is a png_uint_32 that is the logical AND of
your mask with the set of MNG features that is
supported by the version of libpng that you are using.
@ -2729,13 +2743,13 @@ application:
VII. Y2K Compliance in libpng
October 3, 2002
August 15, 2004
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 1.0.15 are Y2K compliant. It is my belief that earlier
upward through 1.0.16 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer that

822
libpngpf.3
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4
png.5
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@ -1,4 +1,4 @@
.TH PNG 5 "October 3, 2002"
.TH PNG 5 "August 15, 2004"
.SH NAME
png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION
@ -53,7 +53,7 @@ Thomas Boutell and others (png-list@ccrc.wustl.edu).
The PNG-1.2 specification is copyright (c) 1999 Glenn Randers-Pehrson.
See the specification for conditions of use and distribution.
.LP
The PNG-1.0 specification is copyright (c) 1996 Massachussets Institute of
The PNG-1.0 specification is copyright (c) 1996 Massachusetts Institute of
Technology. See the specification for conditions of use and distribution.
.LP
.\" end of man page

79
png.c
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@ -1,11 +1,11 @@
/* png.c - location for general purpose libpng functions
*
* libpng version 1.0.15 - October 3, 2002
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* libpng version 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2004 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.)
*
*/
#define PNG_INTERNAL
@ -13,14 +13,14 @@
#include "png.h"
/* Generate a compiler error if there is an old png.h in the search path. */
typedef version_1_0_15 Your_png_h_is_not_version_1_0_15;
typedef version_1_0_16 Your_png_h_is_not_version_1_0_16;
/* Version information for C files. This had better match the version
* string defined in png.h. */
#ifdef PNG_USE_GLOBAL_ARRAYS
/* png_libpng_ver was changed to a function in version 1.0.5c */
const char png_libpng_ver[18] = "1.0.15";
const char png_libpng_ver[18] = PNG_LIBPNG_VER_STRING;
/* png_sig was changed to a function in version 1.0.5c */
/* Place to hold the signature string for a PNG file. */
@ -142,16 +142,23 @@ voidpf /* private */
#endif
png_zalloc(voidpf png_ptr, uInt items, uInt size)
{
png_uint_32 num_bytes = (png_uint_32)items * size;
png_voidp ptr;
png_structp p=png_ptr;
png_uint_32 save_flags=p->flags;
png_uint_32 num_bytes;
if (items > PNG_UINT_32_MAX/size)
{
png_warning (png_ptr, "Potential overflow in png_zalloc()");
return (NULL);
}
num_bytes = (png_uint_32)items * size;
p->flags|=PNG_FLAG_MALLOC_NULL_MEM_OK;
ptr = (png_voidp)png_malloc((png_structp)png_ptr, num_bytes);
p->flags=save_flags;
#ifndef PNG_NO_ZALLOC_ZERO
#if defined(PNG_1_0_X) && !defined(PNG_NO_ZALLOC_ZERO)
if (ptr == NULL)
return ((voidpf)ptr);
@ -217,7 +224,7 @@ png_calculate_crc(png_structp png_ptr, png_bytep ptr, png_size_t length)
/* Allocate the memory for an info_struct for the application. We don't
* really need the png_ptr, but it could potentially be useful in the
* future. This should be used in favour of malloc(sizeof(png_info))
* future. This should be used in favour of malloc(png_sizeof(png_info))
* and png_info_init() so that applications that want to use a shared
* libpng don't have to be recompiled if png_info changes size.
*/
@ -235,7 +242,7 @@ png_create_info_struct(png_structp png_ptr)
info_ptr = (png_infop)png_create_struct(PNG_STRUCT_INFO);
#endif
if (info_ptr != NULL)
png_info_init_3(&info_ptr, sizeof(png_info));
png_info_init_3(&info_ptr, png_sizeof(png_info));
return (info_ptr);
}
@ -287,7 +294,7 @@ png_info_init_3(png_infopp ptr_ptr, png_size_t png_info_struct_size)
png_debug(1, "in png_info_init_3\n");
if(sizeof(png_info) > png_info_struct_size)
if(png_sizeof(png_info) > png_info_struct_size)
{
png_destroy_struct(info_ptr);
info_ptr = (png_infop)png_create_struct(PNG_STRUCT_INFO);
@ -295,7 +302,7 @@ png_info_init_3(png_infopp ptr_ptr, png_size_t png_info_struct_size)
}
/* set everything to 0 */
png_memset(info_ptr, 0, sizeof (png_info));
png_memset(info_ptr, 0, png_sizeof (png_info));
}
#ifdef PNG_FREE_ME_SUPPORTED
@ -581,7 +588,7 @@ png_info_destroy(png_structp png_ptr, png_infop info_ptr)
}
#endif
png_info_init_3(&info_ptr, sizeof(png_info));
png_info_init_3(&info_ptr, png_sizeof(png_info));
}
/* This function returns a pointer to the io_ptr associated with the user
@ -623,7 +630,7 @@ png_convert_to_rfc1123(png_structp png_ptr, png_timep ptime)
if (png_ptr->time_buffer == NULL)
{
png_ptr->time_buffer = (png_charp)png_malloc(png_ptr, (png_uint_32)(29*
sizeof(char)));
png_sizeof(char)));
}
#if defined(_WIN32_WCE)
@ -645,7 +652,7 @@ png_convert_to_rfc1123(png_structp png_ptr, png_timep ptime)
ptime->year, ptime->hour % 24, ptime->minute % 60,
ptime->second % 61);
png_memcpy(png_ptr->time_buffer, near_time_buf,
29*sizeof(char));
29*png_sizeof(char));
}
#else
sprintf(png_ptr->time_buffer, "%d %s %d %02d:%02d:%02d +0000",
@ -670,45 +677,47 @@ png_sig_bytes(void)
png_charp PNGAPI
png_get_copyright(png_structp png_ptr)
{
if (png_ptr != NULL || png_ptr == NULL) /* silence compiler warning */
return ((png_charp) "\n libpng version 1.0.15 - October 3, 2002\n\
Copyright (c) 1998-2002 Glenn Randers-Pehrson\n\
if (&png_ptr != NULL) /* silence compiler warning about unused png_ptr */
return ((png_charp) "\n libpng version 1.0.16 - August 15, 2004\n\
Copyright (c) 1998-2004 Glenn Randers-Pehrson\n\
Copyright (c) 1996-1997 Andreas Dilger\n\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.\n");
return ((png_charp) "");
}
/* The following return the library version as a short string in the
* format 1.0.0 through 99.99.99zz. To get the version of *.h files used
* with your application, print out PNG_LIBPNG_VER_STRING, which is defined
* in png.h.
* format 1.0.0 through 99.99.99zz. To get the version of *.h files
* used with your application, print out PNG_LIBPNG_VER_STRING, which
* is defined in png.h.
* Note: now there is no difference between png_get_libpng_ver() and
* png_get_header_ver(). Due to the version_nn_nn_nn typedef guard,
* it is guaranteed that png.c uses the correct version of png.h.
*/
png_charp PNGAPI
png_get_libpng_ver(png_structp png_ptr)
{
/* Version of *.c files used when building libpng */
if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */
return((png_charp) "1.0.15");
return((png_charp) "1.0.15");
if (&png_ptr != NULL) /* silence compiler warning about unused png_ptr */
return ((png_charp) PNG_LIBPNG_VER_STRING);
return ((png_charp) "");
}
png_charp PNGAPI
png_get_header_ver(png_structp png_ptr)
{
/* Version of *.h files used when building libpng */
if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */
return((png_charp) PNG_LIBPNG_VER_STRING);
if (&png_ptr != NULL) /* silence compiler warning about unused png_ptr */
return ((png_charp) PNG_LIBPNG_VER_STRING);
return ((png_charp) "");
}
png_charp PNGAPI
png_get_header_version(png_structp png_ptr)
{
/* Returns longer string containing both version and date */
if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */
return((png_charp) PNG_HEADER_VERSION_STRING);
if (&png_ptr != NULL) /* silence compiler warning about unused png_ptr */
return ((png_charp) PNG_HEADER_VERSION_STRING);
return ((png_charp) "");
}
#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
@ -740,7 +749,7 @@ png_uint_32 PNGAPI
png_access_version_number(void)
{
/* Version of *.c files used when building libpng */
return((png_uint_32) 10015L);
return((png_uint_32) PNG_LIBPNG_VER);
}
@ -803,3 +812,15 @@ png_mmx_support(void)
}
#endif
#endif /* PNG_1_0_X */
#ifdef PNG_SIZE_T
/* Added at libpng version 1.2.6 */
PNG_EXTERN png_size_t PNGAPI png_convert_size PNGARG((size_t size));
png_size_t PNGAPI
png_convert_size(size_t size)
{
if (size > (png_size_t)-1)
PNG_ABORT(); /* We haven't got access to png_ptr, so no png_error() */
return ((png_size_t)size);
}
#endif /* PNG_SIZE_T */

119
png.h
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@ -1,14 +1,14 @@
/* png.h - header file for PNG reference library
*
* libpng version 1.0.15 - October 3, 2002
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* libpng version 1.0.16 - August 15, 2004
* Copyright (c) 1998-2004 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.)
*
* 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 1.0.15 - October 3, 2002: Glenn
* libpng versions 0.97, January 1998, through 1.0.16 - August 15, 2004: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@ -98,6 +98,9 @@
* 1.2.5rc1-3 13 10205 12.so.0.1.2.5rc1-3
* 1.0.15 10 10015 10.so.0.1.0.15
* 1.2.5 13 10205 12.so.0.1.2.5
* 1.2.6beta1-4 13 10206 12.so.0.1.2.6beta1-4
* 1.0.16 10 10016 10.so.0.1.0.16
* 1.2.6 13 10206 12.so.0.1.2.6
*
* Henceforth the source version will match the shared-library major
* and minor numbers; the shared-library major version number will be
@ -127,7 +130,14 @@
* If you modify libpng you may insert additional notices immediately following
* this sentence.
*
* libpng versions 1.0.7, July 1, 2000, through 1.0.15, October 3, 2002, are
* libpng version 1.2.6, August 15, 2004, is
* Copyright (c) 2004 Glenn Randers-Pehrson, and is
* distributed according to the same disclaimer and license as libpng-1.2.5
* with the following individual added to the list of Contributing Authors
*
* Cosmin Truta
*
* libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are
* Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are
* distributed according to the same disclaimer and license as libpng-1.0.6
* with the following individuals added to the list of Contributing Authors
@ -232,13 +242,13 @@
* Y2K compliance in libpng:
* =========================
*
* October 3, 2002
* August 15, 2004
*
* 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 1.0.15 are Y2K compliant. It is my belief that earlier
* upward through 1.0.16 are Y2K compliant. It is my belief that earlier
* versions were also Y2K compliant.
*
* Libpng only has three year fields. One is a 2-byte unsigned integer
@ -294,7 +304,9 @@
*/
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.0.15"
#define PNG_LIBPNG_VER_STRING "1.0.16"
#define PNG_HEADER_VERSION_STRING \
" libpng version 1.0.16 - August 15, 2004 (header)\n"
#define PNG_LIBPNG_VER_SONUM 0
#define PNG_LIBPNG_VER_DLLNUM %DLLNUM%
@ -302,7 +314,7 @@
/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
#define PNG_LIBPNG_VER_MAJOR 1
#define PNG_LIBPNG_VER_MINOR 0
#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: */
@ -321,7 +333,7 @@
* Versions 0.7 through 1.0.0 were in the range 0 to 100 here (only
* 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 10015 /* 1.0.15 */
#define PNG_LIBPNG_VER 10016 /* 1.0.16 */
#ifndef PNG_VERSION_INFO_ONLY
@ -833,7 +845,11 @@ typedef png_info FAR * png_infop;
typedef png_info FAR * FAR * png_infopp;
/* Maximum positive integer used in PNG is (2^31)-1 */
#define PNG_MAX_UINT ((png_uint_32)0x7fffffffL)
#define PNG_UINT_31_MAX ((png_uint_32)0x7fffffffL)
#define PNG_UINT_32_MAX (~((png_uint_32)0))
#define PNG_SIZE_MAX (~((png_size_t)0))
/* PNG_MAX_UINT is deprecated; use PNG_UINT_31_MAX instead. */
#define PNG_MAX_UINT PNG_UINT_31_MAX
/* These describe the color_type field in png_info. */
/* color type masks */
@ -1280,13 +1296,21 @@ struct png_struct_def
/* palette color */
#endif
/* New members added in libpng-1.0.16 and 1.2.6 */
png_byte compression_type;
#ifdef PNG_SET_USER_LIMITS_SUPPORTED
png_uint_32 user_width_max;
png_uint_32 user_height_max;
#endif
};
/* This prevents a compiler error in png.c if png.c and png.h are both at
version 1.0.15
/* This triggers a compiler error in png.c, if png.c and png.h
* do not agree upon the version number.
*/
typedef png_structp version_1_0_15;
typedef png_structp version_1_0_16;
typedef png_struct FAR * FAR * png_structpp;
@ -1328,11 +1352,15 @@ extern PNG_EXPORT(png_structp,png_create_write_struct)
PNGARG((png_const_charp user_png_ver, png_voidp error_ptr,
png_error_ptr error_fn, png_error_ptr warn_fn));
#ifdef PNG_WRITE_SUPPORTED
extern PNG_EXPORT(png_uint_32,png_get_compression_buffer_size)
PNGARG((png_structp png_ptr));
#endif
#ifdef PNG_WRITE_SUPPORTED
extern PNG_EXPORT(void,png_set_compression_buffer_size)
PNGARG((png_structp png_ptr, png_uint_32 size));
#endif
/* Reset the compression stream */
extern PNG_EXPORT(int,png_reset_zstream) PNGARG((png_structp png_ptr));
@ -1371,7 +1399,8 @@ extern PNG_EXPORT(png_infop,png_create_info_struct)
/* Initialize the info structure (old interface - DEPRECATED) */
extern PNG_EXPORT(void,png_info_init) PNGARG((png_infop info_ptr));
#undef png_info_init
#define png_info_init(info_ptr) png_info_init_3(&info_ptr, sizeof(png_info));
#define png_info_init(info_ptr) png_info_init_3(&info_ptr,\
png_sizeof(png_info));
extern PNG_EXPORT(void,png_info_init_3) PNGARG((png_infopp info_ptr,
png_size_t png_info_struct_size));
@ -1381,9 +1410,11 @@ extern PNG_EXPORT(void,png_write_info_before_PLTE) PNGARG((png_structp png_ptr,
extern PNG_EXPORT(void,png_write_info) PNGARG((png_structp png_ptr,
png_infop info_ptr));
#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* read the information before the actual image data. */
extern PNG_EXPORT(void,png_read_info) PNGARG((png_structp png_ptr,
png_infop info_ptr));
#endif
#if defined(PNG_TIME_RFC1123_SUPPORTED)
extern PNG_EXPORT(png_charp,png_convert_to_rfc1123)
@ -1546,18 +1577,24 @@ extern PNG_EXPORT(void,png_start_read_image) PNGARG((png_structp png_ptr));
extern PNG_EXPORT(void,png_read_update_info) PNGARG((png_structp png_ptr,
png_infop info_ptr));
#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* read one or more rows of image data. */
extern PNG_EXPORT(void,png_read_rows) PNGARG((png_structp png_ptr,
png_bytepp row, png_bytepp display_row, png_uint_32 num_rows));
#endif
#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* read a row of data. */
extern PNG_EXPORT(void,png_read_row) PNGARG((png_structp png_ptr,
png_bytep row,
png_bytep display_row));
#endif
#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* read the whole image into memory at once. */
extern PNG_EXPORT(void,png_read_image) PNGARG((png_structp png_ptr,
png_bytepp image));
#endif
/* write a row of image data */
extern PNG_EXPORT(void,png_write_row) PNGARG((png_structp png_ptr,
@ -1575,9 +1612,11 @@ extern PNG_EXPORT(void,png_write_image) PNGARG((png_structp png_ptr,
extern PNG_EXPORT(void,png_write_end) PNGARG((png_structp png_ptr,
png_infop info_ptr));
#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* read the end of the PNG file. */
extern PNG_EXPORT(void,png_read_end) PNGARG((png_structp png_ptr,
png_infop info_ptr));
#endif
/* free any memory associated with the png_info_struct */
extern PNG_EXPORT(void,png_destroy_info_struct) PNGARG((png_structp png_ptr,
@ -2349,6 +2388,12 @@ extern PNG_EXPORT(png_uint_32,png_permit_mng_features) PNGARG((png_structp
png_ptr, png_uint_32 mng_features_permitted));
#endif
/* For use in png_set_keep_unknown, added to version 1.2.6 */
#define PNG_HANDLE_CHUNK_AS_DEFAULT 0
#define PNG_HANDLE_CHUNK_NEVER 1
#define PNG_HANDLE_CHUNK_IF_SAFE 2
#define PNG_HANDLE_CHUNK_ALWAYS 3
/* Added to version 1.2.0 */
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
#define PNG_ASM_FLAG_MMX_SUPPORT_COMPILED 0x01 /* not user-settable */
@ -2377,7 +2422,6 @@ extern PNG_EXPORT(png_uint_32,png_permit_mng_features) PNGARG((png_structp
#define PNG_SELECT_READ 1
#define PNG_SELECT_WRITE 2
#if !defined(PNG_1_0_X)
/* pngget.c */
extern PNG_EXPORT(png_uint_32,png_get_mmx_flagmask)
@ -2421,12 +2465,20 @@ extern PNG_EXPORT(int,png_mmx_support) PNGARG((void));
extern PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp
png_ptr, png_uint_32 strip_mode));
#endif
#endif /* PNG_1_0_X */
/* Maintainer: Put new public prototypes here ^, in libpng.3, and project defs */
/* Added at libpng-1.2.6 */
#ifdef PNG_SET_USER_LIMITS_SUPPORTED
extern PNG_EXPORT(void,png_set_user_limits) PNGARG((png_structp
png_ptr, png_uint_32 user_width_max, png_uint_32 user_height_max));
extern PNG_EXPORT(png_uint_32,png_get_user_width_max) PNGARG((png_structp
png_ptr));
extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp
png_ptr));
#endif
#define PNG_HEADER_VERSION_STRING \
" libpng version 1.0.15 - October 3, 2002 (header)\n"
/* Maintainer: Put new public prototypes here ^, in libpng.3, and project defs */
#ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED
/* With these routines we avoid an integer divide, which will be slower on
@ -2553,12 +2605,6 @@ extern PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp
#define PNG_FLAG_STRIP_ERROR_TEXT 0x80000L
#define PNG_FLAG_MALLOC_NULL_MEM_OK 0x100000L
/* For use in png_set_keep_unknown, png_handle_as_unknown */
#define HANDLE_CHUNK_AS_DEFAULT 0
#define HANDLE_CHUNK_NEVER 1
#define HANDLE_CHUNK_IF_SAFE 2
#define HANDLE_CHUNK_ALWAYS 3
#define PNG_FLAG_CRC_ANCILLARY_MASK (PNG_FLAG_CRC_ANCILLARY_USE | \
PNG_FLAG_CRC_ANCILLARY_NOWARN)
@ -2569,10 +2615,24 @@ extern PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp
PNG_FLAG_CRC_CRITICAL_MASK)
/* save typing and make code easier to understand */
#define PNG_COLOR_DIST(c1, c2) (abs((int)((c1).red) - (int)((c2).red)) + \
abs((int)((c1).green) - (int)((c2).green)) + \
abs((int)((c1).blue) - (int)((c2).blue)))
/* Added to libpng-1.2.6 JB */
#define PNG_ROWBYTES(pixel_bits, width) \
((pixel_bits) >= 8 ? \
((width) * (((png_uint_32)(pixel_bits)) >> 3)) : \
(( ((width) * ((png_uint_32)(pixel_bits))) + 7) >> 3) )
/* PNG_OUT_OF_RANGE returns true if value is outside the range
ideal-delta..ideal+delta. Each argument is evaluated twice.
"ideal" and "delta" should be constants, normally simple
integers, "value" a variable. Added to libpng-1.2.6 JB */
#define PNG_OUT_OF_RANGE(value, ideal, delta) \
( (value) < (ideal)-(delta) || (value) > (ideal)+(delta) )
/* variables declared in png.c - only it needs to define PNG_NO_EXTERN */
#if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN)
/* place to hold the signature string for a PNG file. */
@ -2655,6 +2715,8 @@ PNG_EXTERN png_int_32 png_get_int_32 PNGARG((png_bytep buf));
PNG_EXTERN png_uint_32 png_get_uint_32 PNGARG((png_bytep buf));
PNG_EXTERN png_uint_16 png_get_uint_16 PNGARG((png_bytep buf));
#endif /* !PNG_READ_BIG_ENDIAN_SUPPORTED */
PNG_EXTERN png_uint_32 png_get_uint_31 PNGARG((png_structp png_ptr,
png_bytep buf));
/* Initialize png_ptr struct for reading, and allocate any other memory.
* (old interface - DEPRECATED - use png_create_read_struct instead).
@ -2662,7 +2724,7 @@ PNG_EXTERN png_uint_16 png_get_uint_16 PNGARG((png_bytep buf));
extern PNG_EXPORT(void,png_read_init) PNGARG((png_structp png_ptr));
#undef png_read_init
#define png_read_init(png_ptr) png_read_init_3(&png_ptr, \
PNG_LIBPNG_VER_STRING, sizeof(png_struct));
PNG_LIBPNG_VER_STRING, png_sizeof(png_struct));
extern PNG_EXPORT(void,png_read_init_3) PNGARG((png_structpp ptr_ptr,
png_const_charp user_png_ver, png_size_t png_struct_size));
extern PNG_EXPORT(void,png_read_init_2) PNGARG((png_structp png_ptr,
@ -2675,7 +2737,7 @@ extern PNG_EXPORT(void,png_read_init_2) PNGARG((png_structp png_ptr,
extern PNG_EXPORT(void,png_write_init) PNGARG((png_structp png_ptr));
#undef png_write_init
#define png_write_init(png_ptr) png_write_init_3(&png_ptr, \
PNG_LIBPNG_VER_STRING, sizeof(png_struct));
PNG_LIBPNG_VER_STRING, png_sizeof(png_struct));
extern PNG_EXPORT(void,png_write_init_3) PNGARG((png_structpp ptr_ptr,
png_const_charp user_png_ver, png_size_t png_struct_size));
extern PNG_EXPORT(void,png_write_init_2) PNGARG((png_structp png_ptr,
@ -2704,6 +2766,11 @@ PNG_EXTERN voidpf png_zalloc PNGARG((voidpf png_ptr, uInt items, uInt size));
/* Function to free memory for zlib */
PNG_EXTERN void png_zfree PNGARG((voidpf png_ptr, voidpf ptr));
#ifdef PNG_SIZE_T
/* Function to convert a sizeof an item to png_sizeof item */
PNG_EXTERN png_size_t PNGAPI png_convert_size PNGARG((size_t size));
#endif
/* Next four functions are used internally as callbacks. PNGAPI is required
* but not PNG_EXPORT. PNGAPI added at libpng version 1.2.3. */

4
pngasmrd.h
View File

@ -1,8 +1,8 @@
/* pngasmrd.h - assembler version of utilities to read a PNG file
*
* libpng 1.0.15 - October 3, 2002
* libpng 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 2002 Glenn Randers-Pehrson
* Copyright (c) 2002-2004 Glenn Randers-Pehrson
*
*/

70
pngconf.h
View File

@ -1,8 +1,9 @@
/* pngconf.h - machine configurable file for libpng
*
* libpng 1.0.15 - October 3, 2002
* libpng version 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 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.)
*/
@ -16,7 +17,9 @@
#ifndef PNGCONF_H
#define PNGCONF_H
#define PNG_1_0_X
#ifdef PNG_USER_CONFIG
#include "pngusr.h"
#endif
/* This is the size of the compression buffer, and thus the size of
* an IDAT chunk. Make this whatever size you feel is best for your
@ -254,6 +257,9 @@
# undef _BSD_SOURCE
# endif
# ifdef _SETJMP_H
/* If you encounter a compiler error here, see the explanation
* near the end of INSTALL.
*/
__png.h__ already includes setjmp.h;
__dont__ include it again.;
# endif
@ -319,15 +325,13 @@
# define PNG_ALWAYS_EXTERN
#endif
/* For some reason, Borland C++ defines memcmp, etc. in mem.h, not
* stdlib.h like it should (I think). Or perhaps this is a C++
* "feature"?
*/
#ifdef __TURBOC__
/* This provides the non-ANSI (far) memory allocation routines. */
#if defined(__TURBOC__) && defined(__MSDOS__)
# include <mem.h>
# include "alloc.h"
# include <alloc.h>
#endif
/* I have no idea why is this necessary... */
#if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \
defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__))
# include <malloc.h>
@ -665,6 +669,25 @@
#endif
#endif /* PNG_1_0_X */
/* Added at libpng-1.2.6 */
#if !defined(PNG_1_0_X)
#ifndef PNG_SET_USER_LIMITS_SUPPORTED
#if !defined(PNG_NO_SET_USER_LIMITS) && !defined(PNG_SET_USER_LIMITS_SUPPORTED)
# define PNG_SET_USER_LIMITS_SUPPORTED
#endif
#endif
#endif /* PNG_1_0_X */
/* Added at libpng-1.0.16 and 1.2.6. To accept all valid PNGS no matter
* how large, set these limits to 0x7fffffffL
*/
#ifndef PNG_USER_WIDTH_MAX
# define PNG_USER_WIDTH_MAX 1000000L
#endif
#ifndef PNG_USER_HEIGHT_MAX
# define PNG_USER_HEIGHT_MAX 1000000L
#endif
/* These are currently experimental features, define them if you want */
/* very little testing */
@ -679,11 +702,9 @@
/* This is only for PowerPC big-endian and 680x0 systems */
/* some testing */
/*
#ifdef PNG_READ_SUPPORTED
# ifndef PNG_PNG_READ_BIG_ENDIAN_SUPPORTED
#ifndef PNG_READ_BIG_ENDIAN_SUPPORTED
# define PNG_READ_BIG_ENDIAN_SUPPORTED
#endif
#endif
*/
/* Buggy compilers (e.g., gcc 2.7.2.2) need this */
@ -990,7 +1011,13 @@ typedef unsigned char png_byte;
/* This is usually size_t. It is typedef'ed just in case you need it to
change (I'm not sure if you will or not, so I thought I'd be safe) */
#ifdef PNG_SIZE_T
typedef PNG_SIZE_T png_size_t;
# define png_sizeof(x) png_convert_size(sizeof (x))
#else
typedef size_t png_size_t;
# define png_sizeof(x) sizeof (x)
#endif
/* The following is needed for medium model support. It cannot be in the
* PNG_INTERNAL section. Needs modification for other compilers besides
@ -1173,8 +1200,6 @@ typedef z_stream FAR * png_zstreamp;
* zlib and your applications the same way you build libpng.
*/
#ifndef PNGAPI
#if defined(__MINGW32__) && !defined(PNG_MODULEDEF)
# ifndef PNG_NO_MODULEDEF
# define PNG_NO_MODULEDEF
@ -1189,11 +1214,13 @@ typedef z_stream FAR * png_zstreamp;
(( defined(_Windows) || defined(_WINDOWS) || \
defined(WIN32) || defined(_WIN32) || defined(__WIN32__) ))
# ifndef PNGAPI
# if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800))
# define PNGAPI __cdecl
# else
# define PNGAPI _cdecl
# endif
# endif
# if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \
0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */)
@ -1230,15 +1257,12 @@ typedef z_stream FAR * png_zstreamp;
# endif
# endif /* PNG_IMPEXP */
#else /* !(DLL || non-cygwin WINDOWS) */
# if (defined(__IBMC__) || defined(IBMCPP__)) && defined(__OS2__)
# if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__)
# ifndef PNGAPI
# define PNGAPI _System
# define PNG_IMPEXP
# endif
# else
# if 0 /* ... other platforms, with other meanings */
# else
# define PNGAPI
# define PNG_IMPEXP
# endif
# endif
# endif
#endif
@ -1282,6 +1306,7 @@ typedef z_stream FAR * png_zstreamp;
# define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK))
# define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))
# define png_strcpy _fstrcpy
# define png_strncpy _fstrncpy /* Added to v 1.2.6 */
# define png_strlen _fstrlen
# define png_memcmp _fmemcmp /* SJT: added */
# define png_memcpy _fmemcpy
@ -1290,6 +1315,7 @@ typedef z_stream FAR * png_zstreamp;
# define CVT_PTR(ptr) (ptr)
# define CVT_PTR_NOCHECK(ptr) (ptr)
# define png_strcpy strcpy
# define png_strncpy strncpy /* Added to v 1.2.6 */
# define png_strlen strlen
# define png_memcmp memcmp /* SJT: added */
# define png_memcpy memcpy
@ -1300,9 +1326,9 @@ typedef z_stream FAR * png_zstreamp;
/* Just a little check that someone hasn't tried to define something
* contradictory.
*/
#if (PNG_ZBUF_SIZE > 65536) && defined(PNG_MAX_MALLOC_64K)
#if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K)
# undef PNG_ZBUF_SIZE
# define PNG_ZBUF_SIZE 65536
# define PNG_ZBUF_SIZE 65536L
#endif
#ifdef PNG_READ_SUPPORTED

44
pngerror.c
View File

@ -1,9 +1,9 @@
/* pngerror.c - stub functions for i/o and memory allocation
*
* libpng 1.0.15 - October 3, 2002
* libpng version 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 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.)
*
@ -35,9 +35,9 @@ png_error(png_structp png_ptr, png_const_charp error_message)
char msg[16];
if (png_ptr->flags&(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT))
{
int offset = 0;
if (*error_message == '#')
{
int offset;
for (offset=1; offset<15; offset++)
if (*(error_message+offset) == ' ')
break;
@ -63,11 +63,11 @@ png_error(png_structp png_ptr, png_const_charp error_message)
}
}
#endif
if (png_ptr->error_fn != NULL)
if (png_ptr != NULL && png_ptr->error_fn != NULL)
(*(png_ptr->error_fn))(png_ptr, error_message);
/* if the following returns or doesn't exist, use the default function,
which will not return */
/* If the custom handler doesn't exist, or if it returns,
use the default handler, which will not return. */
png_default_error(png_ptr, error_message);
}
@ -91,11 +91,10 @@ png_warning(png_structp png_ptr, png_const_charp warning_message)
break;
}
}
if (png_ptr->warning_fn != NULL)
(*(png_ptr->warning_fn))(png_ptr,
(png_const_charp)(warning_message+offset));
if (png_ptr != NULL && png_ptr->warning_fn != NULL)
(*(png_ptr->warning_fn))(png_ptr, warning_message+offset);
else
png_default_warning(png_ptr, (png_const_charp)(warning_message+offset));
png_default_warning(png_ptr, warning_message+offset);
}
/* These utilities are used internally to build an error message that relates
@ -104,10 +103,11 @@ png_warning(png_structp png_ptr, png_const_charp warning_message)
* to 63 bytes, the name characters are output as hex digits wrapped in []
* if the character is invalid.
*/
#define isnonalpha(c) ((c) < 41 || (c) > 122 || ((c) > 90 && (c) < 97))
#define isnonalpha(c) ((c) < 65 || (c) > 122 || ((c) > 90 && (c) < 97))
static PNG_CONST char png_digit[16] = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E',
'F' };
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'A', 'B', 'C', 'D', 'E', 'F'
};
static void /* PRIVATE */
png_format_buffer(png_structp png_ptr, png_charp buffer, png_const_charp
@ -137,7 +137,7 @@ png_format_buffer(png_structp png_ptr, png_charp buffer, png_const_charp
{
buffer[iout++] = ':';
buffer[iout++] = ' ';
png_memcpy(buffer+iout, error_message, 64);
png_strncpy(buffer+iout, error_message, 63);
buffer[iout+63] = 0;
}
}
@ -190,26 +190,28 @@ png_default_error(png_structp png_ptr, png_const_charp error_message)
else
#endif
fprintf(stderr, "libpng error: %s\n", error_message);
#else
if (error_message)
/* make compiler happy */ ;
#endif
#ifdef PNG_SETJMP_SUPPORTED
# ifdef USE_FAR_KEYWORD
{
jmp_buf jmpbuf;
png_memcpy(jmpbuf,png_ptr->jmpbuf,sizeof(jmp_buf));
png_memcpy(jmpbuf,png_ptr->jmpbuf,png_sizeof(jmp_buf));
longjmp(jmpbuf, 1);
}
# else
longjmp(png_ptr->jmpbuf, 1);
# endif
#else
if (png_ptr)
/* make compiler happy */ ;
if (png_ptr)
PNG_ABORT();
#endif
#ifdef PNG_NO_CONSOLE_IO
/* make compiler happy */ ;
if (&error_message != NULL)
return;
#endif
}
/* This function is called when there is a warning, but the library thinks
@ -245,9 +247,11 @@ png_default_warning(png_structp png_ptr, png_const_charp warning_message)
# endif
fprintf(stderr, "libpng warning: %s\n", warning_message);
#else
/* make compiler happy */ ;
if (warning_message)
/* appease compiler */ ;
return;
#endif
/* make compiler happy */ ;
if (png_ptr)
return;
}

35
pnggccrd.c
View File

@ -6,9 +6,9 @@
* and http://www.intel.com/drg/pentiumII/appnotes/923/923.htm
* for Intel's performance analysis of the MMX vs. non-MMX code.
*
* libpng version 1.0.15 - October 3, 2002
* libpng version 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 Glenn Randers-Pehrson
* Copyright (c) 1998, Intel Corporation
*
* Based on MSVC code contributed by Nirav Chhatrapati, Intel Corp., 1998.
@ -223,6 +223,10 @@
* 20020304:
* - eliminated incorrect use of width_mmx in pixel_bytes == 8 case
*
* 20040724:
* - more tinkering with clobber list at lines 4529 and 5033, to get
* it to compile on gcc-3.4.
*
* STILL TO DO:
* - test png_do_read_interlace() 64-bit case (pixel_bytes == 8)
* - write MMX code for 48-bit case (pixel_bytes == 6)
@ -412,8 +416,10 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
if (_mmx_supported == 2) {
#if !defined(PNG_1_0_X)
/* this should have happened in png_init_mmx_flags() already */
png_warning(png_ptr, "asm_flags may not have been initialized");
#endif
png_mmx_support();
}
#endif
@ -422,7 +428,7 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
{
png_debug(2,"mask == 0xff: doing single png_memcpy()\n");
png_memcpy(row, png_ptr->row_buf + 1,
(png_size_t)((png_ptr->width * png_ptr->row_info.pixel_depth + 7) >> 3));
(png_size_t)PNG_ROWBYTES(png_ptr->row_info.pixel_depth,png_ptr->width));
}
else /* (png_combine_row() is never called with mask == 0) */
{
@ -1767,8 +1773,8 @@ png_do_read_interlace(png_structp png_ptr)
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width) // ecx
// doesn't work "i" (0x0000000000FFFFFFLL) // %1 (a.k.a. _const4)
"0" (width), // ecx
"rim" (_const4) // %1(?) (0x0000000000FFFFFFLL)
#if 0 /* %mm0, ..., %mm4 not supported by gcc 2.7.2.3 or egcs 1.1 */
: "%mm0", "%mm1", "%mm2" // clobber list
@ -1811,7 +1817,8 @@ png_do_read_interlace(png_structp png_ptr)
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width) // ecx
"0" (width), // ecx
"rim" (_const4) // (0x0000000000FFFFFFLL)
#if 0 /* %mm0, ..., %mm2 not supported by gcc 2.7.2.3 or egcs 1.1 */
: "%mm0", "%mm1", "%mm2" // clobber list
@ -1865,7 +1872,9 @@ png_do_read_interlace(png_structp png_ptr)
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width_mmx) // ecx
"0" (width_mmx), // ecx
"rim" (_const4), // 0x0000000000FFFFFFLL
"rim" (_const6) // 0x00000000000000FFLL
#if 0 /* %mm0, ..., %mm3 not supported by gcc 2.7.2.3 or egcs 1.1 */
: "%mm0", "%mm1" // clobber list
@ -2727,8 +2736,8 @@ png_do_read_interlace(png_structp png_ptr)
} /* end switch (row_info->pixel_depth) */
row_info->width = final_width;
row_info->rowbytes = ((final_width *
(png_uint_32)row_info->pixel_depth + 7) >> 3);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,final_width);
}
} /* end png_do_read_interlace() */
@ -4529,8 +4538,7 @@ png_read_filter_row_mmx_sub(png_row_infop row_info, png_bytep row)
: "0" (bpp), // eax // input regs
"1" (row) // edi
: "%ebx", "%ecx", "%edx" // clobber list
, "%esi"
: "%esi", "%ecx", "%edx" // clobber list
#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1", "%mm2", "%mm3"
@ -5034,7 +5042,10 @@ png_read_filter_row_mmx_up(png_row_infop row_info, png_bytep row,
"1" (prev_row), // esi
"2" (row) // edi
: "%eax", "%ebx", "%ecx" // clobber list (no input regs!)
: "%eax", "%ecx" // clobber list (no input regs!)
#ifndef __PIC__
, "%ebx"
#endif
#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1", "%mm2", "%mm3"

53
pngget.c
View File

@ -1,9 +1,9 @@
/* pngget.c - retrieval of values from info struct
*
* libpng 1.0.15 - October 3, 2002
* libpng 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 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.)
*/
@ -540,9 +540,6 @@ png_get_IHDR(png_structp png_ptr, png_infop info_ptr,
if (png_ptr != NULL && info_ptr != NULL && width != NULL && height != NULL &&
bit_depth != NULL && color_type != NULL)
{
int pixel_depth, channels;
png_uint_32 rowbytes_per_pixel;
png_debug1(1, "in %s retrieval function\n", "IHDR");
*width = info_ptr->width;
*height = info_ptr->height;
@ -560,23 +557,18 @@ png_get_IHDR(png_structp png_ptr, png_infop info_ptr,
*interlace_type = info_ptr->interlace_type;
/* check for potential overflow of rowbytes */
if (*color_type == PNG_COLOR_TYPE_PALETTE)
channels = 1;
else if (*color_type & PNG_COLOR_MASK_COLOR)
channels = 3;
else
channels = 1;
if (*color_type & PNG_COLOR_MASK_ALPHA)
channels++;
pixel_depth = *bit_depth * channels;
rowbytes_per_pixel = (pixel_depth + 7) >> 3;
if (width == 0 || *width > PNG_MAX_UINT)
if (width == 0 || *width > PNG_UINT_31_MAX)
png_error(png_ptr, "Invalid image width");
if (height == 0 || *height > PNG_MAX_UINT)
if (height == 0 || *height > PNG_UINT_31_MAX)
png_error(png_ptr, "Invalid image height");
if (*width > PNG_MAX_UINT/rowbytes_per_pixel - 64)
if (info_ptr->width > (PNG_UINT_32_MAX
>> 3) /* 8-byte RGBA pixels */
- 64 /* bigrowbuf hack */
- 1 /* filter byte */
- 7*8 /* rounding of width to multiple of 8 pixels */
- 8) /* extra max_pixel_depth pad */
{
png_error(png_ptr,
png_warning(png_ptr,
"Width too large for libpng to process image data.");
}
return (1);
@ -827,13 +819,13 @@ png_get_user_chunk_ptr(png_structp png_ptr)
}
#endif
#ifdef PNG_WRITE_SUPPORTED
png_uint_32 PNGAPI
png_get_compression_buffer_size(png_structp png_ptr)
{
return (png_uint_32)(png_ptr? png_ptr->zbuf_size : 0L);
}
#endif
#ifndef PNG_1_0_X
#ifdef PNG_ASSEMBLER_CODE_SUPPORTED
@ -923,5 +915,20 @@ png_get_mmx_rowbytes_threshold (png_structp png_ptr)
{
return (png_uint_32)(png_ptr? png_ptr->mmx_rowbytes_threshold : 0L);
}
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
#endif /* PNG_1_0_X */
#endif /* ?PNG_ASSEMBLER_CODE_SUPPORTED */
#ifdef PNG_SET_USER_LIMITS_SUPPORTED
/* these functions were added to libpng 1.2.6 */
png_uint_32 PNGAPI
png_get_user_width_max (png_structp png_ptr)
{
return (png_ptr? png_ptr->user_width_max : 0);
}
png_uint_32 PNGAPI
png_get_user_height_max (png_structp png_ptr)
{
return (png_ptr? png_ptr->user_height_max : 0);
}
#endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */
#endif /* ?PNG_1_0_X */

93
pngmem.c
View File

@ -1,9 +1,9 @@
/* pngmem.c - stub functions for memory allocation
*
* libpng 1.0.15 - October 3, 2002
* libpng version 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 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.)
*
@ -39,11 +39,11 @@ png_create_struct_2(int type, png_malloc_ptr malloc_fn, png_voidp mem_ptr)
png_voidp struct_ptr;
if (type == PNG_STRUCT_INFO)
size = sizeof(png_info);
size = png_sizeof(png_info);
else if (type == PNG_STRUCT_PNG)
size = sizeof(png_struct);
size = png_sizeof(png_struct);
else
return (png_get_copyright());
return (png_get_copyright(NULL));
#ifdef PNG_USER_MEM_SUPPORTED
if(malloc_fn != NULL)
@ -55,7 +55,7 @@ png_create_struct_2(int type, png_malloc_ptr malloc_fn, png_voidp mem_ptr)
}
else
#endif /* PNG_USER_MEM_SUPPORTED */
struct_ptr = (png_voidp)farmalloc(size));
struct_ptr = (png_voidp)farmalloc(size);
if (struct_ptr != NULL)
png_memset(struct_ptr, 0, size);
return (struct_ptr);
@ -121,15 +121,13 @@ png_malloc(png_structp png_ptr, png_uint_32 size)
#ifdef PNG_USER_MEM_SUPPORTED
if(png_ptr->malloc_fn != NULL)
{
ret = ((png_voidp)(*(png_ptr->malloc_fn))(png_ptr, (png_size_t)size));
else
ret = (png_malloc_default(png_ptr, size));
if (ret == NULL && (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
png_error(png_ptr, "Out of memory!");
return (ret);
}
else
return png_malloc_default(png_ptr, size);
}
png_voidp PNGAPI
png_malloc_default(png_structp png_ptr, png_uint_32 size)
@ -139,10 +137,16 @@ png_malloc_default(png_structp png_ptr, png_uint_32 size)
#ifdef PNG_MAX_MALLOC_64K
if (size > (png_uint_32)65536L)
png_error(png_ptr, "Cannot Allocate > 64K");
{
png_warning(png_ptr, "Cannot Allocate > 64K");
ret = NULL;
}
else
#endif
if (size == (png_uint_32)65536L)
if (size != (size_t)size)
ret = NULL;
else if (size == (png_uint_32)65536L)
{
if (png_ptr->offset_table == NULL)
{
@ -177,34 +181,40 @@ png_malloc_default(png_structp png_ptr, png_uint_32 size)
if (table == NULL)
{
if (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
#ifndef PNG_USER_MEM_SUPPORTED
if ((png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
png_error(png_ptr, "Out Of Memory."); /* Note "O" and "M" */
else
png_warning(png_ptr, "Out Of Memory.");
#endif
return (NULL);
}
if ((png_size_t)table & 0xfff0)
{
if (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
#ifndef PNG_USER_MEM_SUPPORTED
if ((png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
png_error(png_ptr,
"Farmalloc didn't return normalized pointer");
else
png_warning(png_ptr,
"Farmalloc didn't return normalized pointer");
#endif
return (NULL);
}
png_ptr->offset_table = table;
png_ptr->offset_table_ptr = farmalloc(num_blocks *
sizeof (png_bytep));
png_sizeof (png_bytep));
if (png_ptr->offset_table_ptr == NULL)
{
if (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
#ifndef PNG_USER_MEM_SUPPORTED
if ((png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
png_error(png_ptr, "Out Of memory."); /* Note "O" and "M" */
else
png_warning(png_ptr, "Out Of memory.");
#endif
return (NULL);
}
@ -228,10 +238,12 @@ png_malloc_default(png_structp png_ptr, png_uint_32 size)
if (png_ptr->offset_table_count >= png_ptr->offset_table_number)
{
if (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
#ifndef PNG_USER_MEM_SUPPORTED
if ((png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
png_error(png_ptr, "Out of Memory."); /* Note "o" and "M" */
else
png_warning(png_ptr, "Out of Memory.");
#endif
return (NULL);
}
@ -240,13 +252,15 @@ png_malloc_default(png_structp png_ptr, png_uint_32 size)
else
ret = farmalloc(size);
#ifndef PNG_USER_MEM_SUPPORTED
if (ret == NULL)
{
if (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
if ((png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
png_error(png_ptr, "Out of memory."); /* Note "o" and "m" */
else
png_warning(png_ptr, "Out of memory."); /* Note "o" and "m" */
}
#endif
return (ret);
}
@ -325,9 +339,9 @@ png_create_struct_2(int type, png_malloc_ptr malloc_fn, png_voidp mem_ptr)
png_voidp struct_ptr;
if (type == PNG_STRUCT_INFO)
size = sizeof(png_info);
size = png_sizeof(png_info);
else if (type == PNG_STRUCT_PNG)
size = sizeof(png_struct);
size = png_sizeof(png_struct);
else
return (NULL);
@ -345,17 +359,16 @@ png_create_struct_2(int type, png_malloc_ptr malloc_fn, png_voidp mem_ptr)
#endif /* PNG_USER_MEM_SUPPORTED */
#if defined(__TURBOC__) && !defined(__FLAT__)
if ((struct_ptr = (png_voidp)farmalloc(size)) != NULL)
struct_ptr = (png_voidp)farmalloc(size);
#else
# if defined(_MSC_VER) && defined(MAXSEG_64K)
if ((struct_ptr = (png_voidp)halloc(size,1)) != NULL)
struct_ptr = (png_voidp)halloc(size,1);
# else
if ((struct_ptr = (png_voidp)malloc(size)) != NULL)
struct_ptr = (png_voidp)malloc(size);
# endif
#endif
{
if (struct_ptr != NULL)
png_memset(struct_ptr, 0, size);
}
return (struct_ptr);
}
@ -410,20 +423,18 @@ png_malloc(png_structp png_ptr, png_uint_32 size)
{
png_voidp ret;
#ifdef PNG_USER_MEM_SUPPORTED
if (png_ptr == NULL || size == 0)
return (NULL);
#ifdef PNG_USER_MEM_SUPPORTED
if(png_ptr->malloc_fn != NULL)
{
ret = ((png_voidp)(*(png_ptr->malloc_fn))(png_ptr, (png_size_t)size));
else
ret = (png_malloc_default(png_ptr, size));
if (ret == NULL && (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
png_error(png_ptr, "Out of Memory!");
return (ret);
}
else
return (png_malloc_default(png_ptr, size));
}
png_voidp PNGAPI
png_malloc_default(png_structp png_ptr, png_uint_32 size)
@ -431,28 +442,45 @@ png_malloc_default(png_structp png_ptr, png_uint_32 size)
png_voidp ret;
#endif /* PNG_USER_MEM_SUPPORTED */
if (png_ptr == NULL || size == 0)
return (NULL);
#ifdef PNG_MAX_MALLOC_64K
if (size > (png_uint_32)65536L)
{
#ifndef PNG_USER_MEM_SUPPORTED
if(png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
png_error(png_ptr, "Cannot Allocate > 64K");
else
#endif
return NULL;
}
#endif
/* Check for overflow */
#if defined(__TURBOC__) && !defined(__FLAT__)
if (size != (unsigned long)size)
ret = NULL;
else
ret = farmalloc(size);
#else
# if defined(_MSC_VER) && defined(MAXSEG_64K)
if (size != (unsigned long)size)
ret = NULL;
else
ret = halloc(size, 1);
# else
if (size != (size_t)size)
ret = NULL;
else
ret = malloc((size_t)size);
# endif
#endif
#ifndef PNG_USER_MEM_SUPPORTED
if (ret == NULL && (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
png_error(png_ptr, "Out of Memory");
#endif
return (ret);
}
@ -498,8 +526,9 @@ png_free_default(png_structp png_ptr, png_voidp ptr)
# define png_malloc_warn png_malloc
#else
/* This function was added at libpng version 1.2.3. The png_malloc_warn()
* function will issue a png_warning and return NULL instead of issuing a
* png_error, if it fails to allocate the requested memory.
* function will set up png_malloc() to issue a png_warning and return NULL
* instead of issuing a png_error, if it fails to allocate the requested
* memory.
*/
png_voidp PNGAPI
png_malloc_warn(png_structp png_ptr, png_uint_32 size)

84
pngpread.c
View File

@ -1,9 +1,9 @@
/* pngpread.c - read a png file in push mode
*
* libpng 1.0.15 - October 3, 2002
* libpng version 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 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.)
*/
@ -208,7 +208,7 @@ png_push_read_chunk(png_structp png_ptr, png_infop info_ptr)
}
png_push_fill_buffer(png_ptr, chunk_length, 4);
png_ptr->push_length = png_get_uint_32(chunk_length);
png_ptr->push_length = png_get_uint_31(png_ptr,chunk_length);
png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
png_ptr->mode |= PNG_HAVE_CHUNK_HEADER;
@ -223,6 +223,41 @@ png_push_read_chunk(png_structp png_ptr, png_infop info_ptr)
}
png_handle_IHDR(png_ptr, info_ptr, png_ptr->push_length);
}
else if (!png_memcmp(png_ptr->chunk_name, png_IEND, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
{
png_push_save_buffer(png_ptr);
return;
}
png_handle_IEND(png_ptr, info_ptr, png_ptr->push_length);
png_ptr->process_mode = PNG_READ_DONE_MODE;
png_push_have_end(png_ptr, info_ptr);
}
#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
else if (png_handle_as_unknown(png_ptr, png_ptr->chunk_name))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
{
png_push_save_buffer(png_ptr);
return;
}
if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4))
png_ptr->mode |= PNG_HAVE_IDAT;
png_handle_unknown(png_ptr, info_ptr, png_ptr->push_length);
if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4))
png_ptr->mode |= PNG_HAVE_PLTE;
else if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4))
{
if (!(png_ptr->mode & PNG_HAVE_IHDR))
png_error(png_ptr, "Missing IHDR before IDAT");
else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE &&
!(png_ptr->mode & PNG_HAVE_PLTE))
png_error(png_ptr, "Missing PLTE before IDAT");
}
}
#endif
else if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
@ -261,18 +296,6 @@ png_push_read_chunk(png_structp png_ptr, png_infop info_ptr)
png_ptr->zstream.next_out = png_ptr->row_buf;
return;
}
else if (!png_memcmp(png_ptr->chunk_name, png_IEND, 4))
{
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
{
png_push_save_buffer(png_ptr);
return;
}
png_handle_IEND(png_ptr, info_ptr, png_ptr->push_length);
png_ptr->process_mode = PNG_READ_DONE_MODE;
png_push_have_end(png_ptr, info_ptr);
}
#if defined(PNG_READ_gAMA_SUPPORTED)
else if (!png_memcmp(png_ptr->chunk_name, png_gAMA, 4))
{
@ -591,6 +614,11 @@ png_push_save_buffer(png_structp png_ptr)
png_size_t new_max;
png_bytep old_buffer;
if (png_ptr->save_buffer_size > PNG_SIZE_MAX -
(png_ptr->current_buffer_size + 256))
{
png_error(png_ptr, "Potential overflow of save_buffer");
}
new_max = png_ptr->save_buffer_size + png_ptr->current_buffer_size + 256;
old_buffer = png_ptr->save_buffer;
png_ptr->save_buffer = (png_bytep)png_malloc(png_ptr,
@ -637,8 +665,7 @@ png_push_read_IDAT(png_structp png_ptr)
}
png_push_fill_buffer(png_ptr, chunk_length, 4);
png_ptr->push_length = png_get_uint_32(chunk_length);
png_ptr->push_length = png_get_uint_31(png_ptr,chunk_length);
png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
png_ptr->mode |= PNG_HAVE_CHUNK_HEADER;
@ -753,7 +780,7 @@ png_process_IDAT_data(png_structp png_ptr, png_bytep buffer,
png_ptr->interlaced && png_ptr->pass > 6) ||
(!png_ptr->interlaced &&
#endif
png_ptr->row_number == png_ptr->num_rows-1))
png_ptr->row_number == png_ptr->num_rows))
{
if (png_ptr->zstream.avail_in)
png_warning(png_ptr, "Too much data in IDAT chunks");
@ -778,8 +805,8 @@ png_push_process_row(png_structp png_ptr)
png_ptr->row_info.bit_depth = png_ptr->bit_depth;
png_ptr->row_info.pixel_depth = png_ptr->pixel_depth;
png_ptr->row_info.rowbytes = ((png_ptr->row_info.width *
(png_uint_32)png_ptr->row_info.pixel_depth + 7) >> 3);
png_ptr->row_info.rowbytes = PNG_ROWBYTES(png_ptr->row_info.pixel_depth,
png_ptr->row_info.width);
png_read_filter_row(png_ptr, &(png_ptr->row_info),
png_ptr->row_buf + 1, png_ptr->prev_row + 1,
@ -1004,8 +1031,8 @@ png_read_push_finish_row(png_structp png_ptr)
png_pass_start[png_ptr->pass]) /
png_pass_inc[png_ptr->pass];
png_ptr->irowbytes = ((png_ptr->iwidth *
png_ptr->pixel_depth + 7) >> 3) + 1;
png_ptr->irowbytes = PNG_ROWBYTES(png_ptr->pixel_depth,
png_ptr->iwidth) + 1;
if (png_ptr->transformations & PNG_INTERLACE)
break;
@ -1094,7 +1121,8 @@ png_push_read_tEXt(png_structp png_ptr, png_infop info_ptr)
if (text != key + png_ptr->current_text_size)
text++;
text_ptr = (png_textp)png_malloc(png_ptr, (png_uint_32)sizeof(png_text));
text_ptr = (png_textp)png_malloc(png_ptr,
(png_uint_32)png_sizeof(png_text));
text_ptr->compression = PNG_TEXT_COMPRESSION_NONE;
text_ptr->key = key;
#ifdef PNG_iTXt_SUPPORTED
@ -1287,7 +1315,8 @@ png_push_read_zTXt(png_structp png_ptr, png_infop info_ptr)
key = text;
text += key_size;
text_ptr = (png_textp)png_malloc(png_ptr, (png_uint_32)sizeof(png_text));
text_ptr = (png_textp)png_malloc(png_ptr,
(png_uint_32)png_sizeof(png_text));
text_ptr->compression = PNG_TEXT_COMPRESSION_zTXt;
text_ptr->key = key;
#ifdef PNG_iTXt_SUPPORTED
@ -1399,7 +1428,8 @@ png_push_read_iTXt(png_structp png_ptr, png_infop info_ptr)
if (text != key + png_ptr->current_text_size)
text++;
text_ptr = (png_textp)png_malloc(png_ptr, (png_uint_32)sizeof(png_text));
text_ptr = (png_textp)png_malloc(png_ptr,
(png_uint_32)png_sizeof(png_text));
text_ptr->compression = comp_flag + 2;
text_ptr->key = key;
text_ptr->lang = lang;
@ -1434,7 +1464,7 @@ png_push_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32
{
#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
if(png_handle_as_unknown(png_ptr, png_ptr->chunk_name) !=
HANDLE_CHUNK_ALWAYS
PNG_HANDLE_CHUNK_ALWAYS
#if defined(PNG_READ_USER_CHUNKS_SUPPORTED)
&& png_ptr->read_user_chunk_fn == NULL
#endif
@ -1473,7 +1503,7 @@ png_push_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32
{
if (!(png_ptr->chunk_name[0] & 0x20))
if(png_handle_as_unknown(png_ptr, png_ptr->chunk_name) !=
HANDLE_CHUNK_ALWAYS)
PNG_HANDLE_CHUNK_ALWAYS)
png_chunk_error(png_ptr, "unknown critical chunk");
}
png_set_unknown_chunks(png_ptr, info_ptr, &chunk, 1);

119
pngread.c
View File

@ -1,9 +1,9 @@
/* pngread.c - read a PNG file
*
* libpng 1.0.15 - October 3, 2002
* libpng 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 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.)
*
@ -59,6 +59,12 @@ png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
#endif
#endif /* PNG_1_0_X */
/* added at libpng-1.2.6 */
#ifdef PNG_SET_USER_LIMITS_SUPPORTED
png_ptr->user_width_max=PNG_USER_WIDTH_MAX;
png_ptr->user_height_max=PNG_USER_HEIGHT_MAX;
#endif
#ifdef PNG_SETJMP_SUPPORTED
#ifdef USE_FAR_KEYWORD
if (setjmp(jmpbuf))
@ -77,7 +83,7 @@ png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
return (NULL);
}
#ifdef USE_FAR_KEYWORD
png_memcpy(png_ptr->jmpbuf,jmpbuf,sizeof(jmp_buf));
png_memcpy(png_ptr->jmpbuf,jmpbuf,png_sizeof(jmp_buf));
#endif
#endif
@ -154,7 +160,7 @@ png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
#ifdef USE_FAR_KEYWORD
if (setjmp(jmpbuf))
PNG_ABORT();
png_memcpy(png_ptr->jmpbuf,jmpbuf,sizeof(jmp_buf));
png_memcpy(png_ptr->jmpbuf,jmpbuf,png_sizeof(jmp_buf));
#else
if (setjmp(png_ptr->jmpbuf))
PNG_ABORT();
@ -180,7 +186,8 @@ png_read_init_2(png_structp png_ptr, png_const_charp user_png_ver,
{
/* We only come here via pre-1.0.12-compiled applications */
#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE)
if(sizeof(png_struct) > png_struct_size || sizeof(png_info) > png_info_size)
if(png_sizeof(png_struct) > png_struct_size ||
png_sizeof(png_info) > png_info_size)
{
char msg[80];
png_ptr->warning_fn=NULL;
@ -195,7 +202,7 @@ png_read_init_2(png_structp png_ptr, png_const_charp user_png_ver,
png_warning(png_ptr, msg);
}
#endif
if(sizeof(png_struct) > png_struct_size)
if(png_sizeof(png_struct) > png_struct_size)
{
png_ptr->error_fn=NULL;
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
@ -204,7 +211,7 @@ png_read_init_2(png_structp png_ptr, png_const_charp user_png_ver,
png_error(png_ptr,
"The png struct allocated by the application for reading is too small.");
}
if(sizeof(png_info) > png_info_size)
if(png_sizeof(png_info) > png_info_size)
{
png_ptr->error_fn=NULL;
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
@ -247,10 +254,10 @@ png_read_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
#ifdef PNG_SETJMP_SUPPORTED
/* save jump buffer and error functions */
png_memcpy(tmp_jmp, png_ptr->jmpbuf, sizeof (jmp_buf));
png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof (jmp_buf));
#endif
if(sizeof(png_struct) > png_struct_size)
if(png_sizeof(png_struct) > png_struct_size)
{
png_destroy_struct(png_ptr);
*ptr_ptr = (png_structp)png_create_struct(PNG_STRUCT_PNG);
@ -258,11 +265,17 @@ png_read_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
}
/* reset all variables to 0 */
png_memset(png_ptr, 0, sizeof (png_struct));
png_memset(png_ptr, 0, png_sizeof (png_struct));
#ifdef PNG_SETJMP_SUPPORTED
/* restore jump buffer */
png_memcpy(png_ptr->jmpbuf, tmp_jmp, sizeof (jmp_buf));
png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof (jmp_buf));
#endif
/* added at libpng-1.2.6 */
#ifdef PNG_SET_USER_LIMITS_SUPPORTED
png_ptr->user_width_max=PNG_USER_WIDTH_MAX;
png_ptr->user_height_max=PNG_USER_HEIGHT_MAX;
#endif
/* initialize zbuf - compression buffer */
@ -288,6 +301,7 @@ png_read_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
png_set_read_fn(png_ptr, png_voidp_NULL, png_rw_ptr_NULL);
}
#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* Read the information before the actual image data. This has been
* changed in v0.90 to allow reading a file that already has the magic
* bytes read from the stream. You can tell libpng how many bytes have
@ -384,7 +398,7 @@ png_read_info(png_structp png_ptr, png_infop info_ptr)
png_uint_32 length;
png_read_data(png_ptr, chunk_length, 4);
length = png_get_uint_32(chunk_length);
length = png_get_uint_31(png_ptr,chunk_length);
png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
@ -392,9 +406,6 @@ png_read_info(png_structp png_ptr, png_infop info_ptr)
png_debug2(0, "Reading %s chunk, length=%lu.\n", png_ptr->chunk_name,
length);
if (length > PNG_MAX_UINT)
png_error(png_ptr, "Invalid chunk length.");
/* This should be a binary subdivision search or a hash for
* matching the chunk name rather than a linear search.
*/
@ -507,6 +518,7 @@ png_read_info(png_structp png_ptr, png_infop info_ptr)
png_handle_unknown(png_ptr, info_ptr, length);
}
}
#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */
/* optional call to update the users info_ptr structure */
void PNGAPI
@ -521,6 +533,7 @@ png_read_update_info(png_structp png_ptr, png_infop info_ptr)
png_read_transform_info(png_ptr, info_ptr);
}
#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* Initialize palette, background, etc, after transformations
* are set, but before any reading takes place. This allows
* the user to obtain a gamma-corrected palette, for example.
@ -533,7 +546,9 @@ png_start_read_image(png_structp png_ptr)
if (!(png_ptr->flags & PNG_FLAG_ROW_INIT))
png_read_start_row(png_ptr);
}
#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */
#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
void PNGAPI
png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
{
@ -673,10 +688,7 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
png_crc_finish(png_ptr, 0);
png_read_data(png_ptr, chunk_length, 4);
png_ptr->idat_size = png_get_uint_32(chunk_length);
if (png_ptr->idat_size > PNG_MAX_UINT)
png_error(png_ptr, "Invalid chunk length.");
png_ptr->idat_size = png_get_uint_31(png_ptr,chunk_length);
png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
@ -712,8 +724,8 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
png_ptr->row_info.channels = png_ptr->channels;
png_ptr->row_info.bit_depth = png_ptr->bit_depth;
png_ptr->row_info.pixel_depth = png_ptr->pixel_depth;
png_ptr->row_info.rowbytes = ((png_ptr->row_info.width *
(png_uint_32)png_ptr->row_info.pixel_depth + 7) >> 3);
png_ptr->row_info.rowbytes = PNG_ROWBYTES(png_ptr->row_info.pixel_depth,
png_ptr->row_info.width);
if(png_ptr->row_buf[0])
png_read_filter_row(png_ptr, &(png_ptr->row_info),
@ -767,7 +779,9 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
if (png_ptr->read_row_fn != NULL)
(*(png_ptr->read_row_fn))(png_ptr, png_ptr->row_number, png_ptr->pass);
}
#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */
#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* Read one or more rows of image data. If the image is interlaced,
* and png_set_interlace_handling() has been called, the rows need to
* contain the contents of the rows from the previous pass. If the
@ -789,7 +803,7 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
* not called png_set_interlace_handling(), the display_row buffer will
* be ignored, so pass NULL to it.
*
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.15
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.16
*/
void PNGAPI
@ -826,7 +840,9 @@ png_read_rows(png_structp png_ptr, png_bytepp row,
dp++;
}
}
#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */
#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* Read the entire image. If the image has an alpha channel or a tRNS
* chunk, and you have called png_handle_alpha()[*], you will need to
* initialize the image to the current image that PNG will be overlaying.
@ -837,7 +853,7 @@ png_read_rows(png_structp png_ptr, png_bytepp row,
* only call this function once. If you desire to have an image for
* each pass of a interlaced image, use png_read_rows() instead.
*
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.15
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.16
*/
void PNGAPI
png_read_image(png_structp png_ptr, png_bytepp image)
@ -871,7 +887,9 @@ png_read_image(png_structp png_ptr, png_bytepp image)
}
}
}
#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */
#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* Read the end of the PNG file. Will not read past the end of the
* file, will verify the end is accurate, and will read any comments
* or time information at the end of the file, if info is not NULL.
@ -946,16 +964,13 @@ png_read_end(png_structp png_ptr, png_infop info_ptr)
#endif /* PNG_GLOBAL_ARRAYS */
png_read_data(png_ptr, chunk_length, 4);
length = png_get_uint_32(chunk_length);
length = png_get_uint_31(png_ptr,chunk_length);
png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
png_debug1(0, "Reading %s chunk.\n", png_ptr->chunk_name);
if (length > PNG_MAX_UINT)
png_error(png_ptr, "Invalid chunk length.");
if (!png_memcmp(png_ptr->chunk_name, png_IHDR, 4))
png_handle_IHDR(png_ptr, info_ptr, length);
else if (!png_memcmp(png_ptr->chunk_name, png_IEND, 4))
@ -1058,6 +1073,7 @@ png_read_end(png_structp png_ptr, png_infop info_ptr)
png_handle_unknown(png_ptr, info_ptr, length);
} while (!(png_ptr->mode & PNG_HAVE_IEND));
}
#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */
/* free all memory used by the read */
void PNGAPI
@ -1067,8 +1083,8 @@ png_destroy_read_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr,
png_structp png_ptr = NULL;
png_infop info_ptr = NULL, end_info_ptr = NULL;
#ifdef PNG_USER_MEM_SUPPORTED
png_free_ptr free_fn = NULL;
png_voidp mem_ptr = NULL;
png_free_ptr free_fn;
png_voidp mem_ptr;
#endif
png_debug(1, "in png_destroy_read_struct\n");
@ -1249,7 +1265,7 @@ png_read_destroy(png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr
* being used again.
*/
#ifdef PNG_SETJMP_SUPPORTED
png_memcpy(tmp_jmp, png_ptr->jmpbuf, sizeof (jmp_buf));
png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof (jmp_buf));
#endif
error_fn = png_ptr->error_fn;
@ -1259,7 +1275,7 @@ png_read_destroy(png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr
free_fn = png_ptr->free_fn;
#endif
png_memset(png_ptr, 0, sizeof (png_struct));
png_memset(png_ptr, 0, png_sizeof (png_struct));
png_ptr->error_fn = error_fn;
png_ptr->warning_fn = warning_fn;
@ -1269,7 +1285,7 @@ png_read_destroy(png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr
#endif
#ifdef PNG_SETJMP_SUPPORTED
png_memcpy(png_ptr->jmpbuf, tmp_jmp, sizeof (jmp_buf));
png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof (jmp_buf));
#endif
}
@ -1280,6 +1296,8 @@ png_set_read_status_fn(png_structp png_ptr, png_read_status_ptr read_row_fn)
png_ptr->read_row_fn = read_row_fn;
}
#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
#if defined(PNG_INFO_IMAGE_SUPPORTED)
void PNGAPI
png_read_png(png_structp png_ptr, png_infop info_ptr,
@ -1289,34 +1307,38 @@ png_read_png(png_structp png_ptr, png_infop info_ptr,
int row;
#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED)
/* invert the alpha channel from opacity to transparency */
/* invert the alpha channel from opacity to transparency
*/
if (transforms & PNG_TRANSFORM_INVERT_ALPHA)
png_set_invert_alpha(png_ptr);
#endif
/* The call to png_read_info() gives us all of the information from the
/* png_read_info() gives us all of the information from the
* PNG file before the first IDAT (image data chunk).
*/
png_read_info(png_ptr, info_ptr);
if (info_ptr->height > PNG_UINT_32_MAX/png_sizeof(png_bytep))
png_error(png_ptr,"Image is too high to process with png_read_png()");
/* -------------- image transformations start here ------------------- */
#if defined(PNG_READ_16_TO_8_SUPPORTED)
/* tell libpng to strip 16 bit/color files down to 8 bits/color */
/* tell libpng to strip 16 bit/color files down to 8 bits per color
*/
if (transforms & PNG_TRANSFORM_STRIP_16)
png_set_strip_16(png_ptr);
#endif
#if defined(PNG_READ_STRIP_ALPHA_SUPPORTED)
/* Strip alpha bytes from the input data without combining with the
* background (not recommended).
/* Strip alpha bytes from the input data without combining with
* the background (not recommended).
*/
if (transforms & PNG_TRANSFORM_STRIP_ALPHA)
png_set_strip_alpha(png_ptr);
#endif
#if defined(PNG_READ_PACK_SUPPORTED) && !defined(PNG_READ_EXPAND_SUPPORTED)
/* Extract multiple pixels with bit depths of 1, 2, and 4 from a single
/* Extract multiple pixels with bit depths of 1, 2, or 4 from a single
* byte into separate bytes (useful for paletted and grayscale images).
*/
if (transforms & PNG_TRANSFORM_PACKING)
@ -1325,7 +1347,8 @@ png_read_png(png_structp png_ptr, png_infop info_ptr,
#if defined(PNG_READ_PACKSWAP_SUPPORTED)
/* Change the order of packed pixels to least significant bit first
* (not useful if you are using png_set_packing). */
* (not useful if you are using png_set_packing).
*/
if (transforms & PNG_TRANSFORM_PACKSWAP)
png_set_packswap(png_ptr);
#endif
@ -1343,10 +1366,12 @@ png_read_png(png_structp png_ptr, png_infop info_ptr,
png_set_expand(png_ptr);
#endif
/* We don't handle background color or gamma transformation or dithering. */
/* We don't handle background color or gamma transformation or dithering.
*/
#if defined(PNG_READ_INVERT_SUPPORTED)
/* invert monochrome files to have 0 as white and 1 as black */
/* invert monochrome files to have 0 as white and 1 as black
*/
if (transforms & PNG_TRANSFORM_INVERT_MONO)
png_set_invert_mono(png_ptr);
#endif
@ -1367,19 +1392,22 @@ png_read_png(png_structp png_ptr, png_infop info_ptr,
#endif
#if defined(PNG_READ_BGR_SUPPORTED)
/* flip the RGB pixels to BGR (or RGBA to BGRA) */
/* flip the RGB pixels to BGR (or RGBA to BGRA)
*/
if (transforms & PNG_TRANSFORM_BGR)
png_set_bgr(png_ptr);
#endif
#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED)
/* swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR) */
/* swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR)
*/
if (transforms & PNG_TRANSFORM_SWAP_ALPHA)
png_set_swap_alpha(png_ptr);
#endif
#if defined(PNG_READ_SWAP_SUPPORTED)
/* swap bytes of 16 bit files to least significant byte first */
/* swap bytes of 16 bit files to least significant byte first
*/
if (transforms & PNG_TRANSFORM_SWAP_ENDIAN)
png_set_swap(png_ptr);
#endif
@ -1400,7 +1428,7 @@ png_read_png(png_structp png_ptr, png_infop info_ptr,
if(info_ptr->row_pointers == NULL)
{
info_ptr->row_pointers = (png_bytepp)png_malloc(png_ptr,
info_ptr->height * sizeof(png_bytep));
info_ptr->height * png_sizeof(png_bytep));
#ifdef PNG_FREE_ME_SUPPORTED
info_ptr->free_me |= PNG_FREE_ROWS;
#endif
@ -1422,3 +1450,4 @@ png_read_png(png_structp png_ptr, png_infop info_ptr,
}
#endif
#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */

4
pngrio.c
View File

@ -1,9 +1,9 @@
/* pngrio.c - functions for data input
*
* libpng 1.0.15 - October 3, 2002
* libpng 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 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.)
*

112
pngrtran.c
View File

@ -1,9 +1,9 @@
/* pngrtran.c - transforms the data in a row for PNG readers
*
* libpng 1.0.15 - October 3, 2002
* libpng version 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 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.)
*
@ -85,7 +85,8 @@ png_set_background(png_structp png_ptr,
}
png_ptr->transformations |= PNG_BACKGROUND;
png_memcpy(&(png_ptr->background), background_color, sizeof(png_color_16));
png_memcpy(&(png_ptr->background), background_color,
png_sizeof(png_color_16));
png_ptr->background_gamma = (float)background_gamma;
png_ptr->background_gamma_type = (png_byte)(background_gamma_code);
png_ptr->transformations |= (need_expand ? PNG_BACKGROUND_EXPAND : 0);
@ -154,7 +155,7 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
int i;
png_ptr->dither_index = (png_bytep)png_malloc(png_ptr,
(png_uint_32)(num_palette * sizeof (png_byte)));
(png_uint_32)(num_palette * png_sizeof (png_byte)));
for (i = 0; i < num_palette; i++)
png_ptr->dither_index[i] = (png_byte)i;
}
@ -170,7 +171,7 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
/* initialize an array to sort colors */
png_ptr->dither_sort = (png_bytep)png_malloc(png_ptr,
(png_uint_32)(num_palette * sizeof (png_byte)));
(png_uint_32)(num_palette * png_sizeof (png_byte)));
/* initialize the dither_sort array */
for (i = 0; i < num_palette; i++)
@ -299,9 +300,9 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
/* initialize palette index arrays */
png_ptr->index_to_palette = (png_bytep)png_malloc(png_ptr,
(png_uint_32)(num_palette * sizeof (png_byte)));
(png_uint_32)(num_palette * png_sizeof (png_byte)));
png_ptr->palette_to_index = (png_bytep)png_malloc(png_ptr,
(png_uint_32)(num_palette * sizeof (png_byte)));
(png_uint_32)(num_palette * png_sizeof (png_byte)));
/* initialize the sort array */
for (i = 0; i < num_palette; i++)
@ -311,10 +312,10 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
}
hash = (png_dsortpp)png_malloc(png_ptr, (png_uint_32)(769 *
sizeof (png_dsortp)));
png_sizeof (png_dsortp)));
for (i = 0; i < 769; i++)
hash[i] = NULL;
/* png_memset(hash, 0, 769 * sizeof (png_dsortp)); */
/* png_memset(hash, 0, 769 * png_sizeof (png_dsortp)); */
num_new_palette = num_palette;
@ -344,7 +345,7 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
{
t = (png_dsortp)png_malloc_warn(png_ptr,
(png_uint_32)(sizeof(png_dsort)));
(png_uint_32)(png_sizeof(png_dsort)));
if (t == NULL)
break;
t->next = hash[d];
@ -462,14 +463,15 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
png_size_t num_entries = ((png_size_t)1 << total_bits);
png_ptr->palette_lookup = (png_bytep )png_malloc(png_ptr,
(png_uint_32)(num_entries * sizeof (png_byte)));
(png_uint_32)(num_entries * png_sizeof (png_byte)));
png_memset(png_ptr->palette_lookup, 0, num_entries * sizeof (png_byte));
png_memset(png_ptr->palette_lookup, 0, num_entries *
png_sizeof (png_byte));
distance = (png_bytep)png_malloc(png_ptr, (png_uint_32)(num_entries *
sizeof(png_byte)));
png_sizeof(png_byte)));
png_memset(distance, 0xff, num_entries * sizeof(png_byte));
png_memset(distance, 0xff, num_entries * png_sizeof(png_byte));
for (i = 0; i < num_palette; i++)
{
@ -480,12 +482,14 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
for (ir = 0; ir < num_red; ir++)
{
int dr = abs(ir - r);
/* int dr = abs(ir - r); */
int dr = ((ir > r) ? ir - r : r - ir);
int index_r = (ir << (PNG_DITHER_BLUE_BITS + PNG_DITHER_GREEN_BITS));
for (ig = 0; ig < num_green; ig++)
{
int dg = abs(ig - g);
/* int dg = abs(ig - g); */
int dg = ((ig > g) ? ig - g : g - ig);
int dt = dr + dg;
int dm = ((dr > dg) ? dr : dg);
int index_g = index_r | (ig << PNG_DITHER_BLUE_BITS);
@ -493,7 +497,8 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
for (ib = 0; ib < num_blue; ib++)
{
int d_index = index_g | ib;
int db = abs(ib - b);
/* int db = abs(ib - b); */
int db = ((ib > b) ? ib - b : b - ib);
int dmax = ((dm > db) ? dm : db);
int d = dmax + dt + db;
@ -1149,7 +1154,8 @@ defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
info_ptr->pixel_depth = (png_byte)(info_ptr->channels *
info_ptr->bit_depth);
info_ptr->rowbytes = ((info_ptr->width * info_ptr->pixel_depth + 7) >> 3);
info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth,info_ptr->width);
#if !defined(PNG_READ_EXPAND_SUPPORTED)
if(png_ptr)
@ -1380,8 +1386,8 @@ From Andreas Dilger e-mail to png-implement, 26 March 1998:
#endif
png_ptr->row_info.pixel_depth = (png_byte)(png_ptr->row_info.bit_depth *
png_ptr->row_info.channels);
png_ptr->row_info.rowbytes = (png_ptr->row_info.width *
png_ptr->row_info.pixel_depth+7)>>3;
png_ptr->row_info.rowbytes = PNG_ROWBYTES(png_ptr->row_info.pixel_depth,
png_ptr->row_info.width);
}
#endif
@ -1889,8 +1895,8 @@ png_do_read_filler(png_row_infop row_info, png_bytep row,
/* This changes the data from GG to GGXX */
if (flags & PNG_FLAG_FILLER_AFTER)
{
png_bytep sp = row + (png_size_t)row_width;
png_bytep dp = sp + (png_size_t)row_width;
png_bytep sp = row + (png_size_t)row_width * 2;
png_bytep dp = sp + (png_size_t)row_width * 2;
for (i = 1; i < row_width; i++)
{
*(--dp) = hi_filler;
@ -1907,8 +1913,8 @@ png_do_read_filler(png_row_infop row_info, png_bytep row,
/* This changes the data from GG to XXGG */
else
{
png_bytep sp = row + (png_size_t)row_width;
png_bytep dp = sp + (png_size_t)row_width;
png_bytep sp = row + (png_size_t)row_width * 2;
png_bytep dp = sp + (png_size_t)row_width * 2;
for (i = 0; i < row_width; i++)
{
*(--dp) = *(--sp);
@ -1921,6 +1927,7 @@ png_do_read_filler(png_row_infop row_info, png_bytep row,
row_info->rowbytes = row_width * 4;
}
}
row_info->color_type |= PNG_COLOR_MASK_ALPHA;
} /* COLOR_TYPE == GRAY */
else if (row_info->color_type == PNG_COLOR_TYPE_RGB)
{
@ -1965,8 +1972,8 @@ png_do_read_filler(png_row_infop row_info, png_bytep row,
/* This changes the data from RRGGBB to RRGGBBXX */
if (flags & PNG_FLAG_FILLER_AFTER)
{
png_bytep sp = row + (png_size_t)row_width * 3;
png_bytep dp = sp + (png_size_t)row_width;
png_bytep sp = row + (png_size_t)row_width * 6;
png_bytep dp = sp + (png_size_t)row_width * 2;
for (i = 1; i < row_width; i++)
{
*(--dp) = hi_filler;
@ -1987,8 +1994,8 @@ png_do_read_filler(png_row_infop row_info, png_bytep row,
/* This changes the data from RRGGBB to XXRRGGBB */
else
{
png_bytep sp = row + (png_size_t)row_width * 3;
png_bytep dp = sp + (png_size_t)row_width;
png_bytep sp = row + (png_size_t)row_width * 6;
png_bytep dp = sp + (png_size_t)row_width * 2;
for (i = 0; i < row_width; i++)
{
*(--dp) = *(--sp);
@ -2005,6 +2012,7 @@ png_do_read_filler(png_row_infop row_info, png_bytep row,
row_info->rowbytes = row_width * 8;
}
}
row_info->color_type |= PNG_COLOR_MASK_ALPHA;
} /* COLOR_TYPE == RGB */
}
#endif
@ -2087,8 +2095,7 @@ png_do_gray_to_rgb(png_row_infop row_info, png_bytep row)
row_info->color_type |= PNG_COLOR_MASK_COLOR;
row_info->pixel_depth = (png_byte)(row_info->channels *
row_info->bit_depth);
row_info->rowbytes = ((row_width *
row_info->pixel_depth + 7) >> 3);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,row_width);
}
}
#endif
@ -2271,7 +2278,7 @@ png_do_rgb_to_gray(png_structp png_ptr, png_row_infop row_info, png_bytep row)
png_byte blue = *(sp++);
if(red != green || red != blue)
rgb_error |= 1;
*(dp++) = (png_byte)((gc*red + gc*green + bc*blue)>>8);
*(dp++) = (png_byte)((rc*red + gc*green + bc*blue)>>15);
*(dp++) = *(sp++); /* alpha */
}
}
@ -2341,8 +2348,7 @@ png_do_rgb_to_gray(png_structp png_ptr, png_row_infop row_info, png_bytep row)
row_info->color_type &= ~PNG_COLOR_MASK_COLOR;
row_info->pixel_depth = (png_byte)(row_info->channels *
row_info->bit_depth);
row_info->rowbytes = ((row_width *
row_info->pixel_depth + 7) >> 3);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,row_width);
}
return rgb_error;
}
@ -3260,8 +3266,7 @@ png_do_background(png_row_infop row_info, png_bytep row,
row_info->channels--;
row_info->pixel_depth = (png_byte)(row_info->channels *
row_info->bit_depth);
row_info->rowbytes = ((row_width *
row_info->pixel_depth + 7) >> 3);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,row_width);
}
}
}
@ -3735,8 +3740,8 @@ png_do_expand(png_row_infop row_info, png_bytep row,
row_info->color_type = PNG_COLOR_TYPE_GRAY_ALPHA;
row_info->channels = 2;
row_info->pixel_depth = (png_byte)(row_info->bit_depth << 1);
row_info->rowbytes =
((row_width * row_info->pixel_depth) >> 3);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,
row_width);
}
}
else if (row_info->color_type == PNG_COLOR_TYPE_RGB && trans_value)
@ -3790,8 +3795,7 @@ png_do_expand(png_row_infop row_info, png_bytep row,
row_info->color_type = PNG_COLOR_TYPE_RGB_ALPHA;
row_info->channels = 4;
row_info->pixel_depth = (png_byte)(row_info->bit_depth << 2);
row_info->rowbytes =
((row_width * row_info->pixel_depth) >> 3);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,row_width);
}
}
}
@ -3844,8 +3848,7 @@ png_do_dither(png_row_infop row_info, png_bytep row,
row_info->color_type = PNG_COLOR_TYPE_PALETTE;
row_info->channels = 1;
row_info->pixel_depth = row_info->bit_depth;
row_info->rowbytes =
((row_width * row_info->pixel_depth + 7) >> 3);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,row_width);
}
else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA &&
palette_lookup != NULL && row_info->bit_depth == 8)
@ -3874,8 +3877,7 @@ png_do_dither(png_row_infop row_info, png_bytep row,
row_info->color_type = PNG_COLOR_TYPE_PALETTE;
row_info->channels = 1;
row_info->pixel_depth = row_info->bit_depth;
row_info->rowbytes =
((row_width * row_info->pixel_depth + 7) >> 3);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,row_width);
}
else if (row_info->color_type == PNG_COLOR_TYPE_PALETTE &&
dither_lookup && row_info->bit_depth == 8)
@ -4005,7 +4007,7 @@ png_build_gamma_table(png_structp png_ptr)
g = 1.0;
png_ptr->gamma_16_table = (png_uint_16pp)png_malloc(png_ptr,
(png_uint_32)(num * sizeof (png_uint_16p)));
(png_uint_32)(num * png_sizeof (png_uint_16p)));
if (png_ptr->transformations & (PNG_16_TO_8 | PNG_BACKGROUND))
{
@ -4015,7 +4017,7 @@ png_build_gamma_table(png_structp png_ptr)
for (i = 0; i < num; i++)
{
png_ptr->gamma_16_table[i] = (png_uint_16p)png_malloc(png_ptr,
(png_uint_32)(256 * sizeof (png_uint_16)));
(png_uint_32)(256 * png_sizeof (png_uint_16)));
}
g = 1.0 / g;
@ -4045,7 +4047,7 @@ png_build_gamma_table(png_structp png_ptr)
for (i = 0; i < num; i++)
{
png_ptr->gamma_16_table[i] = (png_uint_16p)png_malloc(png_ptr,
(png_uint_32)(256 * sizeof (png_uint_16)));
(png_uint_32)(256 * png_sizeof (png_uint_16)));
ig = (((png_uint_32)i * (png_uint_32)png_gamma_shift[shift]) >> 4);
for (j = 0; j < 256; j++)
@ -4065,12 +4067,12 @@ png_build_gamma_table(png_structp png_ptr)
g = 1.0 / (png_ptr->gamma);
png_ptr->gamma_16_to_1 = (png_uint_16pp)png_malloc(png_ptr,
(png_uint_32)(num * sizeof (png_uint_16p )));
(png_uint_32)(num * png_sizeof (png_uint_16p )));
for (i = 0; i < num; i++)
{
png_ptr->gamma_16_to_1[i] = (png_uint_16p)png_malloc(png_ptr,
(png_uint_32)(256 * sizeof (png_uint_16)));
(png_uint_32)(256 * png_sizeof (png_uint_16)));
ig = (((png_uint_32)i *
(png_uint_32)png_gamma_shift[shift]) >> 4);
@ -4088,12 +4090,12 @@ png_build_gamma_table(png_structp png_ptr)
g = png_ptr->gamma; /* probably doing rgb_to_gray */
png_ptr->gamma_16_from_1 = (png_uint_16pp)png_malloc(png_ptr,
(png_uint_32)(num * sizeof (png_uint_16p)));
(png_uint_32)(num * png_sizeof (png_uint_16p)));
for (i = 0; i < num; i++)
{
png_ptr->gamma_16_from_1[i] = (png_uint_16p)png_malloc(png_ptr,
(png_uint_32)(256 * sizeof (png_uint_16)));
(png_uint_32)(256 * png_sizeof (png_uint_16)));
ig = (((png_uint_32)i *
(png_uint_32)png_gamma_shift[shift]) >> 4);
@ -4159,11 +4161,11 @@ png_do_read_intrapixel(png_row_infop row_info, png_bytep row)
for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
{
png_uint_32 s0=*(rp )<<8 | *(rp+1);
png_uint_32 s1=*(rp+2)<<8 | *(rp+3);
png_uint_32 s2=*(rp+4)<<8 | *(rp+5);
png_uint_32 red=(65536+s0+s1)&0xffff;
png_uint_32 blue=(65536+s2+s1)&0xffff;
png_uint_32 s0 = (*(rp ) << 8) | *(rp+1);
png_uint_32 s1 = (*(rp+2) << 8) | *(rp+3);
png_uint_32 s2 = (*(rp+4) << 8) | *(rp+5);
png_uint_32 red = (png_uint_32)((s0+s1+65536L) & 0xffffL);
png_uint_32 blue = (png_uint_32)((s2+s1+65536L) & 0xffffL);
*(rp ) = (png_byte)((red >> 8) & 0xff);
*(rp+1) = (png_byte)(red & 0xff);
*(rp+4) = (png_byte)((blue >> 8) & 0xff);

243
pngrutil.c
View File

@ -1,9 +1,8 @@
/* pngrutil.c - utilities to read a PNG file
*
* libpng 1.0.15 - October 3, 2002
* libpng version 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 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.)
*
@ -38,6 +37,14 @@ __inline double strtod(const char *nptr, char **endptr)
# endif
#endif
png_uint_32 /* PRIVATE */
png_get_uint_31(png_structp png_ptr, png_bytep buf)
{
png_uint_32 i = png_get_uint_32(buf);
if (i > PNG_UINT_31_MAX)
png_error(png_ptr, "PNG unsigned integer out of range.\n");
return (i);
}
#ifndef PNG_READ_BIG_ENDIAN_SUPPORTED
/* Grab an unsigned 32-bit integer from a buffer in big-endian format. */
png_uint_32 /* PRIVATE */
@ -171,7 +178,7 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
png_size_t prefix_size, png_size_t *newlength)
{
static char msg[] = "Error decoding compressed text";
png_charp text = NULL;
png_charp text;
png_size_t text_size;
if (comp_type == PNG_COMPRESSION_TYPE_BASE)
@ -199,7 +206,7 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
if (text == NULL)
{
text_size = prefix_size + sizeof(msg) + 1;
text_size = prefix_size + png_sizeof(msg) + 1;
text = (png_charp)png_malloc_warn(png_ptr, text_size);
if (text == NULL)
{
@ -213,7 +220,8 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
/* Copy what we can of the error message into the text chunk */
text_size = (png_size_t)(chunklength - (text - chunkdata) - 1);
text_size = sizeof(msg) > text_size ? text_size : sizeof(msg);
text_size = png_sizeof(msg) > text_size ? text_size :
png_sizeof(msg);
png_memcpy(text + prefix_size, msg, text_size + 1);
break;
}
@ -346,15 +354,14 @@ png_handle_IHDR(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
png_crc_read(png_ptr, buf, 13);
png_crc_finish(png_ptr, 0);
width = png_get_uint_32(buf);
height = png_get_uint_32(buf + 4);
width = png_get_uint_31(png_ptr, buf);
height = png_get_uint_31(png_ptr, buf + 4);
bit_depth = buf[8];
color_type = buf[9];
compression_type = buf[10];
filter_type = buf[11];
interlace_type = buf[12];
/* set internal variables */
png_ptr->width = width;
png_ptr->height = height;
@ -364,6 +371,7 @@ png_handle_IHDR(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
#if defined(PNG_MNG_FEATURES_SUPPORTED)
png_ptr->filter_type = (png_byte)filter_type;
#endif
png_ptr->compression_type = (png_byte)compression_type;
/* find number of channels */
switch (png_ptr->color_type)
@ -386,8 +394,7 @@ png_handle_IHDR(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
/* set up other useful info */
png_ptr->pixel_depth = (png_byte)(png_ptr->bit_depth *
png_ptr->channels);
png_ptr->rowbytes = ((png_ptr->width *
(png_uint_32)png_ptr->pixel_depth + 7) >> 3);
png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth,png_ptr->width);
png_debug1(3,"bit_depth = %d\n", png_ptr->bit_depth);
png_debug1(3,"channels = %d\n", png_ptr->channels);
png_debug1(3,"rowbytes = %lu\n", png_ptr->rowbytes);
@ -542,8 +549,6 @@ png_handle_IEND(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
if (!(png_ptr->mode & PNG_HAVE_IHDR) || !(png_ptr->mode & PNG_HAVE_IDAT))
{
png_error(png_ptr, "No image in file");
info_ptr = info_ptr; /* quiet compiler warnings about unused info_ptr */
}
png_ptr->mode |= (PNG_AFTER_IDAT | PNG_HAVE_IEND);
@ -553,6 +558,9 @@ png_handle_IEND(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
png_warning(png_ptr, "Incorrect IEND chunk length");
}
png_crc_finish(png_ptr, length);
if (&info_ptr == NULL) /* quiet compiler warnings about unused info_ptr */
return;
}
#if defined(PNG_READ_gAMA_SUPPORTED)
@ -579,7 +587,7 @@ png_handle_gAMA(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
/* Should be an error, but we can cope with it */
png_warning(png_ptr, "Out of place gAMA chunk");
else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_gAMA)
if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_gAMA)
#if defined(PNG_READ_sRGB_SUPPORTED)
&& !(info_ptr->valid & PNG_INFO_sRGB)
#endif
@ -612,7 +620,7 @@ png_handle_gAMA(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
#if defined(PNG_READ_sRGB_SUPPORTED)
if (info_ptr->valid & PNG_INFO_sRGB)
if(igamma < 45000L || igamma > 46000L)
if (PNG_OUT_OF_RANGE(igamma, 45500L, 500))
{
png_warning(png_ptr,
"Ignoring incorrect gAMA value when sRGB is also present");
@ -660,7 +668,7 @@ png_handle_sBIT(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
/* Should be an error, but we can cope with it */
png_warning(png_ptr, "Out of place sBIT chunk");
}
else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sBIT))
if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sBIT))
{
png_warning(png_ptr, "Duplicate sBIT chunk");
png_crc_finish(png_ptr, length);
@ -672,7 +680,7 @@ png_handle_sBIT(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
else
truelen = (png_size_t)png_ptr->channels;
if (length != truelen)
if (length != truelen || length > 4)
{
png_warning(png_ptr, "Incorrect sBIT chunk length");
png_crc_finish(png_ptr, length);
@ -729,7 +737,7 @@ png_handle_cHRM(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
/* Should be an error, but we can cope with it */
png_warning(png_ptr, "Missing PLTE before cHRM");
else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_cHRM)
if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_cHRM)
#if defined(PNG_READ_sRGB_SUPPORTED)
&& !(info_ptr->valid & PNG_INFO_sRGB)
#endif
@ -825,14 +833,14 @@ png_handle_cHRM(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
#if defined(PNG_READ_sRGB_SUPPORTED)
if (info_ptr->valid & PNG_INFO_sRGB)
{
if (abs(int_x_white - 31270L) > 1000 ||
abs(int_y_white - 32900L) > 1000 ||
abs(int_x_red - 64000L) > 1000 ||
abs(int_y_red - 33000L) > 1000 ||
abs(int_x_green - 30000L) > 1000 ||
abs(int_y_green - 60000L) > 1000 ||
abs(int_x_blue - 15000L) > 1000 ||
abs(int_y_blue - 6000L) > 1000)
if (PNG_OUT_OF_RANGE(int_x_white, 31270, 1000) ||
PNG_OUT_OF_RANGE(int_y_white, 32900, 1000) ||
PNG_OUT_OF_RANGE(int_x_red, 64000L, 1000) ||
PNG_OUT_OF_RANGE(int_y_red, 33000, 1000) ||
PNG_OUT_OF_RANGE(int_x_green, 30000, 1000) ||
PNG_OUT_OF_RANGE(int_y_green, 60000L, 1000) ||
PNG_OUT_OF_RANGE(int_x_blue, 15000, 1000) ||
PNG_OUT_OF_RANGE(int_y_blue, 6000, 1000))
{
png_warning(png_ptr,
@ -891,7 +899,7 @@ png_handle_sRGB(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
/* Should be an error, but we can cope with it */
png_warning(png_ptr, "Out of place sRGB chunk");
else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sRGB))
if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sRGB))
{
png_warning(png_ptr, "Duplicate sRGB chunk");
png_crc_finish(png_ptr, length);
@ -920,15 +928,15 @@ png_handle_sRGB(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
#if defined(PNG_READ_gAMA_SUPPORTED) && defined(PNG_READ_GAMMA_SUPPORTED)
if ((info_ptr->valid & PNG_INFO_gAMA))
{
int igamma;
png_fixed_point igamma;
#ifdef PNG_FIXED_POINT_SUPPORTED
igamma=(int)info_ptr->int_gamma;
igamma=info_ptr->int_gamma;
#else
# ifdef PNG_FLOATING_POINT_SUPPORTED
igamma=(int)(info_ptr->gamma * 100000.);
igamma=(png_fixed_point)(info_ptr->gamma * 100000.);
# endif
#endif
if(igamma < 45000L || igamma > 46000L)
if (PNG_OUT_OF_RANGE(igamma, 45500L, 500))
{
png_warning(png_ptr,
"Ignoring incorrect gAMA value when sRGB is also present");
@ -948,14 +956,14 @@ png_handle_sRGB(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
#ifdef PNG_READ_cHRM_SUPPORTED
#ifdef PNG_FIXED_POINT_SUPPORTED
if (info_ptr->valid & PNG_INFO_cHRM)
if (abs(info_ptr->int_x_white - 31270L) > 1000 ||
abs(info_ptr->int_y_white - 32900L) > 1000 ||
abs(info_ptr->int_x_red - 64000L) > 1000 ||
abs(info_ptr->int_y_red - 33000L) > 1000 ||
abs(info_ptr->int_x_green - 30000L) > 1000 ||
abs(info_ptr->int_y_green - 60000L) > 1000 ||
abs(info_ptr->int_x_blue - 15000L) > 1000 ||
abs(info_ptr->int_y_blue - 6000L) > 1000)
if (PNG_OUT_OF_RANGE(info_ptr->int_x_white, 31270, 1000) ||
PNG_OUT_OF_RANGE(info_ptr->int_y_white, 32900, 1000) ||
PNG_OUT_OF_RANGE(info_ptr->int_x_red, 64000L, 1000) ||
PNG_OUT_OF_RANGE(info_ptr->int_y_red, 33000, 1000) ||
PNG_OUT_OF_RANGE(info_ptr->int_x_green, 30000, 1000) ||
PNG_OUT_OF_RANGE(info_ptr->int_y_green, 60000L, 1000) ||
PNG_OUT_OF_RANGE(info_ptr->int_x_blue, 15000, 1000) ||
PNG_OUT_OF_RANGE(info_ptr->int_y_blue, 6000, 1000))
{
png_warning(png_ptr,
"Ignoring incorrect cHRM value when sRGB is also present");
@ -977,8 +985,7 @@ png_handle_iCCP(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
png_bytep pC;
png_charp profile;
png_uint_32 skip = 0;
png_uint_32 profile_size = 0;
png_uint_32 profile_length = 0;
png_uint_32 profile_size, profile_length;
png_size_t slength, prefix_length, data_length;
png_debug(1, "in png_handle_iCCP\n");
@ -995,7 +1002,7 @@ png_handle_iCCP(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
/* Should be an error, but we can cope with it */
png_warning(png_ptr, "Out of place iCCP chunk");
else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_iCCP))
if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_iCCP))
{
png_warning(png_ptr, "Duplicate iCCP chunk");
png_crc_finish(png_ptr, length);
@ -1153,9 +1160,20 @@ png_handle_sPLT(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
return;
}
new_palette.nentries = data_length / entry_size;
new_palette.entries = (png_sPLT_entryp)png_malloc(
png_ptr, new_palette.nentries * sizeof(png_sPLT_entry));
new_palette.nentries = (png_uint_32) (data_length / entry_size);
if ((png_uint_32) new_palette.nentries > (png_uint_32) (PNG_SIZE_MAX /
png_sizeof(png_sPLT_entry)))
{
png_warning(png_ptr, "sPLT chunk too long");
return;
}
new_palette.entries = (png_sPLT_entryp)png_malloc_warn(
png_ptr, new_palette.nentries * png_sizeof(png_sPLT_entry));
if (new_palette.entries == NULL)
{
png_warning(png_ptr, "sPLT chunk requires too much memory");
return;
}
#ifndef PNG_NO_POINTER_INDEXING
for (i = 0; i < new_palette.nentries; i++)
@ -1234,49 +1252,9 @@ png_handle_tRNS(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
return;
}
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY)
{
if (!(png_ptr->mode & PNG_HAVE_PLTE))
{
/* Should be an error, but we can cope with it */
png_warning(png_ptr, "Missing PLTE before tRNS");
}
else if (length > (png_uint_32)png_ptr->num_palette)
{
png_warning(png_ptr, "Incorrect tRNS chunk length");
png_crc_finish(png_ptr, length);
return;
}
if (length == 0)
{
png_warning(png_ptr, "Zero length tRNS chunk");
png_crc_finish(png_ptr, length);
return;
}
png_crc_read(png_ptr, readbuf, (png_size_t)length);
png_ptr->num_trans = (png_uint_16)length;
}
else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB)
{
png_byte buf[6];
if (length != 6)
{
png_warning(png_ptr, "Incorrect tRNS chunk length");
png_crc_finish(png_ptr, length);
return;
}
png_crc_read(png_ptr, buf, (png_size_t)length);
png_ptr->num_trans = 1;
png_ptr->trans_values.red = png_get_uint_16(buf);
png_ptr->trans_values.green = png_get_uint_16(buf + 2);
png_ptr->trans_values.blue = png_get_uint_16(buf + 4);
}
else if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY)
{
png_byte buf[6];
png_byte buf[2];
if (length != 2)
{
@ -1289,6 +1267,45 @@ png_handle_tRNS(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
png_ptr->num_trans = 1;
png_ptr->trans_values.gray = png_get_uint_16(buf);
}
else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB)
{
png_byte buf[6];
if (length != 6)
{
png_warning(png_ptr, "Incorrect tRNS chunk length");
png_crc_finish(png_ptr, length);
return;
}
png_crc_read(png_ptr, buf, (png_size_t)length);
png_ptr->num_trans = 1;
png_ptr->trans_values.red = png_get_uint_16(buf);
png_ptr->trans_values.green = png_get_uint_16(buf + 2);
png_ptr->trans_values.blue = png_get_uint_16(buf + 4);
}
else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
{
if (!(png_ptr->mode & PNG_HAVE_PLTE))
{
/* Should be an error, but we can cope with it. */
png_warning(png_ptr, "Missing PLTE before tRNS");
}
if (length > (png_uint_32)png_ptr->num_palette ||
length > PNG_MAX_PALETTE_LENGTH)
{
png_warning(png_ptr, "Incorrect tRNS chunk length");
png_crc_finish(png_ptr, length);
return;
}
if (length == 0)
{
png_warning(png_ptr, "Zero length tRNS chunk");
png_crc_finish(png_ptr, length);
return;
}
png_crc_read(png_ptr, readbuf, (png_size_t)length);
png_ptr->num_trans = (png_uint_16)length;
}
else
{
png_warning(png_ptr, "tRNS chunk not allowed with alpha channel");
@ -1397,7 +1414,7 @@ png_handle_bKGD(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
void /* PRIVATE */
png_handle_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
{
int num, i;
unsigned int num, i;
png_uint_16 readbuf[PNG_MAX_PALETTE_LENGTH];
png_debug(1, "in png_handle_hIST\n");
@ -1423,8 +1440,9 @@ png_handle_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
return;
}
num = (int)length / 2 ;
if (num != png_ptr->num_palette)
num = length / 2 ;
if (num != (unsigned int) png_ptr->num_palette || num >
(unsigned int) PNG_MAX_PALETTE_LENGTH)
{
png_warning(png_ptr, "Incorrect hIST chunk length");
png_crc_finish(png_ptr, length);
@ -1625,7 +1643,7 @@ png_handle_pCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
png_debug(3, "Allocating pCAL parameters array\n");
params = (png_charpp)png_malloc_warn(png_ptr, (png_uint_32)(nparams
*sizeof(png_charp))) ;
*png_sizeof(png_charp))) ;
if (params == NULL)
{
png_free(png_ptr, purpose);
@ -1883,7 +1901,8 @@ png_handle_tEXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
if (text != key + slength)
text++;
text_ptr = (png_textp)png_malloc_warn(png_ptr, (png_uint_32)sizeof(png_text));
text_ptr = (png_textp)png_malloc_warn(png_ptr,
(png_uint_32)png_sizeof(png_text));
if (text_ptr == NULL)
{
png_warning(png_ptr, "Not enough memory to process text chunk.");
@ -1979,7 +1998,8 @@ png_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
chunkdata = (png_charp)png_decompress_chunk(png_ptr, comp_type, chunkdata,
(png_size_t)length, prefix_len, &data_len);
text_ptr = (png_textp)png_malloc_warn(png_ptr, (png_uint_32)sizeof(png_text));
text_ptr = (png_textp)png_malloc_warn(png_ptr,
(png_uint_32)png_sizeof(png_text));
if (text_ptr == NULL)
{
png_warning(png_ptr,"Not enough memory to process zTXt chunk.");
@ -2088,7 +2108,8 @@ png_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
(size_t)length, prefix_len, &data_len);
else
data_len=png_strlen(chunkdata + prefix_len);
text_ptr = (png_textp)png_malloc_warn(png_ptr, (png_uint_32)sizeof(png_text));
text_ptr = (png_textp)png_malloc_warn(png_ptr,
(png_uint_32)png_sizeof(png_text));
if (text_ptr == NULL)
{
png_warning(png_ptr,"Not enough memory to process iTXt chunk.");
@ -2139,7 +2160,7 @@ png_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
{
#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
if(png_handle_as_unknown(png_ptr, png_ptr->chunk_name) !=
HANDLE_CHUNK_ALWAYS
PNG_HANDLE_CHUNK_ALWAYS
#if defined(PNG_READ_USER_CHUNKS_SUPPORTED)
&& png_ptr->read_user_chunk_fn == NULL
#endif
@ -2173,7 +2194,7 @@ png_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
{
if (!(png_ptr->chunk_name[0] & 0x20))
if(png_handle_as_unknown(png_ptr, png_ptr->chunk_name) !=
HANDLE_CHUNK_ALWAYS)
PNG_HANDLE_CHUNK_ALWAYS)
{
png_free(png_ptr, chunk.data);
png_chunk_error(png_ptr, "unknown critical chunk");
@ -2193,7 +2214,8 @@ png_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
png_crc_finish(png_ptr, skip);
#if !defined(PNG_READ_USER_CHUNKS_SUPPORTED)
info_ptr = info_ptr; /* quiet compiler warnings about unused info_ptr */
if (&info_ptr == NULL) /* quiet compiler warnings about unused info_ptr */
return;
#endif
}
@ -2203,7 +2225,7 @@ png_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
functions to handle unknown critical chunks after we check that
the chunk name itself is valid. */
#define isnonalpha(c) ((c) < 41 || (c) > 122 || ((c) > 90 && (c) < 97))
#define isnonalpha(c) ((c) < 65 || (c) > 122 || ((c) > 90 && (c) < 97))
void /* PRIVATE */
png_check_chunk_name(png_structp png_ptr, png_bytep chunk_name)
@ -2234,8 +2256,7 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
if (mask == 0xff)
{
png_memcpy(row, png_ptr->row_buf + 1,
(png_size_t)((png_ptr->width *
png_ptr->row_info.pixel_depth + 7) >> 3));
PNG_ROWBYTES(png_ptr->row_info.pixel_depth, png_ptr->width));
}
else
{
@ -2650,11 +2671,11 @@ png_do_read_interlace(png_structp png_ptr)
}
}
row_info->width = final_width;
row_info->rowbytes = ((final_width *
(png_uint_32)row_info->pixel_depth + 7) >> 3);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,final_width);
}
#if !defined(PNG_READ_PACKSWAP_SUPPORTED)
transformations = transformations; /* silence compiler warning */
if (&transformations == NULL) /* silence compiler warning */
return;
#endif
}
#endif /* !PNG_HAVE_ASSEMBLER_READ_INTERLACE */
@ -2822,8 +2843,9 @@ png_read_finish_row(png_structp png_ptr)
png_pass_inc[png_ptr->pass] - 1 -
png_pass_start[png_ptr->pass]) /
png_pass_inc[png_ptr->pass];
png_ptr->irowbytes = ((png_ptr->iwidth *
(png_uint_32)png_ptr->pixel_depth + 7) >> 3) +1;
png_ptr->irowbytes = PNG_ROWBYTES(png_ptr->pixel_depth,
png_ptr->iwidth) + 1;
if (!(png_ptr->transformations & PNG_INTERLACE))
{
@ -2863,8 +2885,7 @@ png_read_finish_row(png_structp png_ptr)
png_crc_finish(png_ptr, 0);
png_read_data(png_ptr, chunk_length, 4);
png_ptr->idat_size = png_get_uint_32(chunk_length);
png_ptr->idat_size = png_get_uint_31(png_ptr, chunk_length);
png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
if (png_memcmp(png_ptr->chunk_name, (png_bytep)png_IDAT, 4))
@ -2950,8 +2971,8 @@ png_read_start_row(png_structp png_ptr)
png_pass_start[png_ptr->pass]) /
png_pass_inc[png_ptr->pass];
row_bytes = ((png_ptr->iwidth *
(png_uint_32)png_ptr->pixel_depth + 7) >> 3) +1;
row_bytes = PNG_ROWBYTES(png_ptr->pixel_depth,png_ptr->iwidth) + 1;
png_ptr->irowbytes = (png_size_t)row_bytes;
if((png_uint_32)png_ptr->irowbytes != row_bytes)
png_error(png_ptr, "Rowbytes overflow in png_read_start_row");
@ -3069,7 +3090,7 @@ defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)
row_bytes = ((png_ptr->width + 7) & ~((png_uint_32)7));
/* calculate the maximum bytes needed, adding a byte and a pixel
for safety's sake */
row_bytes = ((row_bytes * (png_uint_32)max_pixel_depth + 7) >> 3) +
row_bytes = PNG_ROWBYTES(max_pixel_depth,row_bytes) +
1 + ((max_pixel_depth + 7) >> 3);
#ifdef PNG_MAX_MALLOC_64K
if (row_bytes > (png_uint_32)65536L)
@ -3085,6 +3106,8 @@ defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)
if ((png_uint_32)png_ptr->rowbytes + 1 > (png_uint_32)65536L)
png_error(png_ptr, "This image requires a row greater than 64KB");
#endif
if ((png_uint_32)png_ptr->rowbytes + 1 > PNG_SIZE_MAX)
png_error(png_ptr, "Row has too many bytes to allocate in memory.");
png_ptr->prev_row = (png_bytep)png_malloc(png_ptr, (png_uint_32)(
png_ptr->rowbytes + 1));

153
pngset.c
View File

@ -1,9 +1,9 @@
/* pngset.c - storage of image information into info struct
*
* libpng 1.0.15 - October 3, 2002
* libpng 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 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.)
*
@ -24,7 +24,7 @@ png_set_bKGD(png_structp png_ptr, png_infop info_ptr, png_color_16p background)
if (png_ptr == NULL || info_ptr == NULL)
return;
png_memcpy(&(info_ptr->background), background, sizeof(png_color_16));
png_memcpy(&(info_ptr->background), background, png_sizeof(png_color_16));
info_ptr->valid |= PNG_INFO_bKGD;
}
#endif
@ -100,10 +100,14 @@ png_set_cHRM_fixed(png_structp png_ptr, png_infop info_ptr,
"Ignoring attempt to set negative chromaticity value");
return;
}
if (white_x > (double) PNG_MAX_UINT || white_y > (double) PNG_MAX_UINT ||
red_x > (double) PNG_MAX_UINT || red_y > (double) PNG_MAX_UINT ||
green_x > (double) PNG_MAX_UINT || green_y > (double) PNG_MAX_UINT ||
blue_x > (double) PNG_MAX_UINT || blue_y > (double) PNG_MAX_UINT)
if (white_x > (double) PNG_UINT_31_MAX ||
white_y > (double) PNG_UINT_31_MAX ||
red_x > (double) PNG_UINT_31_MAX ||
red_y > (double) PNG_UINT_31_MAX ||
green_x > (double) PNG_UINT_31_MAX ||
green_y > (double) PNG_UINT_31_MAX ||
blue_x > (double) PNG_UINT_31_MAX ||
blue_y > (double) PNG_UINT_31_MAX)
{
png_warning(png_ptr,
"Ignoring attempt to set chromaticity value exceeding 21474.83");
@ -169,10 +173,10 @@ png_set_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, png_fixed_point
if (png_ptr == NULL || info_ptr == NULL)
return;
if (int_gamma > (png_fixed_point) PNG_MAX_UINT)
if (int_gamma > (png_fixed_point) PNG_UINT_31_MAX)
{
png_warning(png_ptr, "Limiting gamma to 21474.83");
gamma=PNG_MAX_UINT;
gamma=PNG_UINT_31_MAX;
}
else
{
@ -217,7 +221,7 @@ png_set_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p hist)
#endif
/* Changed from info->num_palette to 256 in version 1.2.1 */
png_ptr->hist = (png_uint_16p)png_malloc_warn(png_ptr,
(png_uint_32)(256 * sizeof (png_uint_16)));
(png_uint_32)(256 * png_sizeof (png_uint_16)));
if (png_ptr->hist == NULL)
{
png_warning(png_ptr, "Insufficient memory for hIST chunk data.");
@ -243,7 +247,6 @@ png_set_IHDR(png_structp png_ptr, png_infop info_ptr,
int color_type, int interlace_type, int compression_type,
int filter_type)
{
int rowbytes_per_pixel;
png_debug1(1, "in %s storage function\n", "IHDR");
if (png_ptr == NULL || info_ptr == NULL)
return;
@ -251,8 +254,22 @@ png_set_IHDR(png_structp png_ptr, png_infop info_ptr,
/* check for width and height valid values */
if (width == 0 || height == 0)
png_error(png_ptr, "Image width or height is zero in IHDR");
if (width > PNG_MAX_UINT || height > PNG_MAX_UINT)
#ifdef PNG_SET_USER_LIMITS_SUPPORTED
if (width > png_ptr->user_width_max || height > png_ptr->user_height_max)
png_error(png_ptr, "image size exceeds user limits in IHDR");
#else
if (width > PNG_USER_WIDTH_MAX || height > PNG_USER_HEIGHT_MAX)
png_error(png_ptr, "image size exceeds user limits in IHDR");
#endif
if (width > PNG_UINT_31_MAX || height > PNG_UINT_31_MAX)
png_error(png_ptr, "Invalid image size in IHDR");
if ( width > (PNG_UINT_32_MAX
>> 3) /* 8-byte RGBA pixels */
- 64 /* bigrowbuf hack */
- 1 /* filter byte */
- 7*8 /* rounding of width to multiple of 8 pixels */
- 8) /* extra max_pixel_depth pad */
png_warning(png_ptr, "Width is too large for libpng to process pixels");
/* check other values */
if (bit_depth != 1 && bit_depth != 2 && bit_depth != 4 &&
@ -320,16 +337,16 @@ png_set_IHDR(png_structp png_ptr, png_infop info_ptr,
info_ptr->channels++;
info_ptr->pixel_depth = (png_byte)(info_ptr->channels * info_ptr->bit_depth);
/* check for overflow */
rowbytes_per_pixel = (info_ptr->pixel_depth + 7) >> 3;
if ( width > PNG_MAX_UINT/rowbytes_per_pixel - 64)
{
png_warning(png_ptr,
"Width too large to process image data; rowbytes will overflow.");
/* check for potential overflow */
if ( width > (PNG_UINT_32_MAX
>> 3) /* 8-byte RGBA pixels */
- 64 /* bigrowbuf hack */
- 1 /* filter byte */
- 7*8 /* rounding of width to multiple of 8 pixels */
- 8) /* extra max_pixel_depth pad */
info_ptr->rowbytes = (png_size_t)0;
}
else
info_ptr->rowbytes = (info_ptr->width * info_ptr->pixel_depth + 7) >> 3;
info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth,width);
}
#if defined(PNG_oFFs_SUPPORTED)
@ -388,7 +405,7 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr,
png_memcpy(info_ptr->pcal_units, units, (png_size_t)length);
info_ptr->pcal_params = (png_charpp)png_malloc_warn(png_ptr,
(png_uint_32)((nparams + 1) * sizeof(png_charp)));
(png_uint_32)((nparams + 1) * png_sizeof(png_charp)));
if (info_ptr->pcal_params == NULL)
{
png_warning(png_ptr, "Insufficient memory for pCAL params.");
@ -449,12 +466,21 @@ png_set_sCAL_s(png_structp png_ptr, png_infop info_ptr,
length = png_strlen(swidth) + 1;
png_debug1(3, "allocating unit for info (%d bytes)\n", length);
info_ptr->scal_s_width = (png_charp)png_malloc(png_ptr, length);
info_ptr->scal_s_width = (png_charp)png_malloc_warn(png_ptr, length);
if (info_ptr->scal_s_width == NULL)
{
png_warning(png_ptr, "Memory allocation failed while processing sCAL.");
}
png_memcpy(info_ptr->scal_s_width, swidth, (png_size_t)length);
length = png_strlen(sheight) + 1;
png_debug1(3, "allocating unit for info (%d bytes)\n", length);
info_ptr->scal_s_height = (png_charp)png_malloc(png_ptr, length);
info_ptr->scal_s_height = (png_charp)png_malloc_warn(png_ptr, length);
if (info_ptr->scal_s_height == NULL)
{
png_free (png_ptr, info_ptr->scal_s_width);
png_warning(png_ptr, "Memory allocation failed while processing sCAL.");
}
png_memcpy(info_ptr->scal_s_height, sheight, (png_size_t)length);
info_ptr->valid |= PNG_INFO_sCAL;
@ -499,13 +525,13 @@ png_set_PLTE(png_structp png_ptr, png_infop info_ptr,
#ifdef PNG_FREE_ME_SUPPORTED
png_free_data(png_ptr, info_ptr, PNG_FREE_PLTE, 0);
#endif
/* Changed in libpng-1.2.1 to allocate 256 instead of num_palette entries,
in case of an invalid PNG file that has too-large sample values. */
png_ptr->palette = (png_colorp)png_zalloc(png_ptr, (uInt)256,
sizeof (png_color));
if (png_ptr->palette == NULL)
png_error(png_ptr, "Unable to malloc palette");
png_memcpy(png_ptr->palette, palette, num_palette * sizeof (png_color));
png_ptr->palette = (png_colorp)png_malloc(png_ptr,
256 * png_sizeof(png_color));
png_memset(png_ptr->palette, 0, 256 * png_sizeof(png_color));
png_memcpy(png_ptr->palette, palette, num_palette * png_sizeof (png_color));
info_ptr->palette = png_ptr->palette;
info_ptr->num_palette = png_ptr->num_palette = (png_uint_16)num_palette;
@ -527,7 +553,7 @@ png_set_sBIT(png_structp png_ptr, png_infop info_ptr,
if (png_ptr == NULL || info_ptr == NULL)
return;
png_memcpy(&(info_ptr->sig_bit), sig_bit, sizeof (png_color_8));
png_memcpy(&(info_ptr->sig_bit), sig_bit, png_sizeof (png_color_8));
info_ptr->valid |= PNG_INFO_sBIT;
}
#endif
@ -628,9 +654,20 @@ png_set_iCCP(png_structp png_ptr, png_infop info_ptr,
if (png_ptr == NULL || info_ptr == NULL || name == NULL || profile == NULL)
return;
new_iccp_name = (png_charp)png_malloc(png_ptr, png_strlen(name)+1);
new_iccp_name = (png_charp)png_malloc_warn(png_ptr, png_strlen(name)+1);
if (new_iccp_name == NULL)
{
png_warning(png_ptr, "Insufficient memory to process iCCP chunk.");
return;
}
png_strcpy(new_iccp_name, name);
new_iccp_profile = (png_charp)png_malloc(png_ptr, proflen);
new_iccp_profile = (png_charp)png_malloc_warn(png_ptr, proflen);
if (new_iccp_profile == NULL)
{
png_free (png_ptr, new_iccp_name);
png_warning(png_ptr, "Insufficient memory to process iCCP profile.");
return;
}
png_memcpy(new_iccp_profile, profile, (png_size_t)proflen);
png_free_data(png_ptr, info_ptr, PNG_FREE_ICCP, 0);
@ -685,14 +722,14 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
info_ptr->max_text = info_ptr->num_text + num_text + 8;
old_text = info_ptr->text;
info_ptr->text = (png_textp)png_malloc_warn(png_ptr,
(png_uint_32)(info_ptr->max_text * sizeof (png_text)));
(png_uint_32)(info_ptr->max_text * png_sizeof (png_text)));
if (info_ptr->text == NULL)
{
png_free(png_ptr, old_text);
return(1);
}
png_memcpy(info_ptr->text, old_text, (png_size_t)(old_max *
sizeof(png_text)));
png_sizeof(png_text)));
png_free(png_ptr, old_text);
}
else
@ -700,7 +737,7 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
info_ptr->max_text = num_text + 8;
info_ptr->num_text = 0;
info_ptr->text = (png_textp)png_malloc_warn(png_ptr,
(png_uint_32)(info_ptr->max_text * sizeof (png_text)));
(png_uint_32)(info_ptr->max_text * png_sizeof (png_text)));
if (info_ptr->text == NULL)
return(1);
#ifdef PNG_FREE_ME_SUPPORTED
@ -829,7 +866,7 @@ png_set_tIME(png_structp png_ptr, png_infop info_ptr, png_timep mod_time)
(png_ptr->mode & PNG_WROTE_tIME))
return;
png_memcpy(&(info_ptr->mod_time), mod_time, sizeof (png_time));
png_memcpy(&(info_ptr->mod_time), mod_time, png_sizeof (png_time));
info_ptr->valid |= PNG_INFO_tIME;
}
#endif
@ -867,7 +904,7 @@ png_set_tRNS(png_structp png_ptr, png_infop info_ptr,
if (trans_values != NULL)
{
png_memcpy(&(info_ptr->trans_values), trans_values,
sizeof(png_color_16));
png_sizeof(png_color_16));
if (num_trans == 0)
num_trans = 1;
}
@ -885,7 +922,7 @@ png_set_sPLT(png_structp png_ptr,
int i;
np = (png_sPLT_tp)png_malloc_warn(png_ptr,
(info_ptr->splt_palettes_num + nentries) * sizeof(png_sPLT_t));
(info_ptr->splt_palettes_num + nentries) * png_sizeof(png_sPLT_t));
if (np == NULL)
{
png_warning(png_ptr, "No memory for sPLT palettes.");
@ -893,7 +930,7 @@ png_set_sPLT(png_structp png_ptr,
}
png_memcpy(np, info_ptr->splt_palettes,
info_ptr->splt_palettes_num * sizeof(png_sPLT_t));
info_ptr->splt_palettes_num * png_sizeof(png_sPLT_t));
png_free(png_ptr, info_ptr->splt_palettes);
info_ptr->splt_palettes=NULL;
@ -904,11 +941,13 @@ png_set_sPLT(png_structp png_ptr,
to->name = (png_charp)png_malloc(png_ptr,
png_strlen(from->name) + 1);
/* TODO: use png_malloc_warn */
png_strcpy(to->name, from->name);
to->entries = (png_sPLT_entryp)png_malloc(png_ptr,
from->nentries * sizeof(png_sPLT_t));
from->nentries * png_sizeof(png_sPLT_t));
/* TODO: use png_malloc_warn */
png_memcpy(to->entries, from->entries,
from->nentries * sizeof(png_sPLT_t));
from->nentries * png_sizeof(png_sPLT_t));
to->nentries = from->nentries;
to->depth = from->depth;
}
@ -935,7 +974,7 @@ png_set_unknown_chunks(png_structp png_ptr,
np = (png_unknown_chunkp)png_malloc_warn(png_ptr,
(info_ptr->unknown_chunks_num + num_unknowns) *
sizeof(png_unknown_chunk));
png_sizeof(png_unknown_chunk));
if (np == NULL)
{
png_warning(png_ptr, "Out of memory while processing unknown chunk.");
@ -943,7 +982,7 @@ png_set_unknown_chunks(png_structp png_ptr,
}
png_memcpy(np, info_ptr->unknown_chunks,
info_ptr->unknown_chunks_num * sizeof(png_unknown_chunk));
info_ptr->unknown_chunks_num * png_sizeof(png_unknown_chunk));
png_free(png_ptr, info_ptr->unknown_chunks);
info_ptr->unknown_chunks=NULL;
@ -952,10 +991,12 @@ png_set_unknown_chunks(png_structp png_ptr,
png_unknown_chunkp to = np + info_ptr->unknown_chunks_num + i;
png_unknown_chunkp from = unknowns + i;
png_strcpy((png_charp)to->name, (png_charp)from->name);
to->data = (png_bytep)png_malloc(png_ptr, from->size);
png_strncpy((png_charp)to->name, (png_charp)from->name, 5);
to->data = (png_bytep)png_malloc_warn(png_ptr, from->size);
if (to->data == NULL)
png_warning(png_ptr, "Out of memory while processing unknown chunk.");
{
png_warning(png_ptr, "Out of memory processing unknown chunk.");
}
else
{
png_memcpy(to->data, from->data, from->size);
@ -1020,12 +1061,12 @@ png_set_keep_unknown_chunks(png_structp png_ptr, int keep, png_bytep
int i, old_num_chunks;
if (num_chunks == 0)
{
if(keep == HANDLE_CHUNK_ALWAYS || keep == HANDLE_CHUNK_IF_SAFE)
if(keep == PNG_HANDLE_CHUNK_ALWAYS || keep == PNG_HANDLE_CHUNK_IF_SAFE)
png_ptr->flags |= PNG_FLAG_KEEP_UNKNOWN_CHUNKS;
else
png_ptr->flags &= ~PNG_FLAG_KEEP_UNKNOWN_CHUNKS;
if(keep == HANDLE_CHUNK_ALWAYS)
if(keep == PNG_HANDLE_CHUNK_ALWAYS)
png_ptr->flags |= PNG_FLAG_KEEP_UNSAFE_CHUNKS;
else
png_ptr->flags &= ~PNG_FLAG_KEEP_UNSAFE_CHUNKS;
@ -1083,6 +1124,7 @@ png_set_rows(png_structp png_ptr, png_infop info_ptr, png_bytepp row_pointers)
}
#endif
#ifdef PNG_WRITE_SUPPORTED
void PNGAPI
png_set_compression_buffer_size(png_structp png_ptr, png_uint_32 size)
{
@ -1093,6 +1135,7 @@ png_set_compression_buffer_size(png_structp png_ptr, png_uint_32 size)
png_ptr->zstream.next_out = png_ptr->zbuf;
png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size;
}
#endif
void PNGAPI
png_set_invalid(png_structp png_ptr, png_infop info_ptr, int mask)
@ -1157,4 +1200,20 @@ png_set_mmx_thresholds (png_structp png_ptr,
png_ptr->mmx_rowbytes_threshold = mmx_rowbytes_threshold;
}
#endif /* ?PNG_ASSEMBLER_CODE_SUPPORTED */
#ifdef PNG_SET_USER_LIMITS_SUPPORTED
/* this function was added to libpng 1.2.6 */
void PNGAPI
png_set_user_limits (png_structp png_ptr, png_uint_32 user_width_max,
png_uint_32 user_height_max)
{
/* Images with dimensions larger than these limits will be
* rejected by png_set_IHDR(). To accept any PNG datastream
* regardless of dimensions, set both limits to 0x7ffffffL.
*/
png_ptr->user_width_max = user_width_max;
png_ptr->user_height_max = user_height_max;
}
#endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */
#endif /* ?PNG_1_0_X */

77
pngtest.c
View File

@ -1,9 +1,9 @@
/* pngtest.c - a simple test program to test libpng
*
* libpng 1.0.15 - October 3, 2002
* libpng 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 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.)
*
@ -28,6 +28,8 @@
* of files at once by typing "pngtest -m file1.png file2.png ..."
*/
#include "png.h"
#if defined(_WIN32_WCE)
# if _WIN32_WCE < 211
__error__ (f|w)printf functions are not supported on old WindowsCE.;
@ -80,8 +82,6 @@ static float t_start, t_stop, t_decode, t_encode, t_misc;
#include <time.h>
#endif
#include "png.h"
/* Define png_jmpbuf() in case we are using a pre-1.0.6 version of libpng */
#ifndef png_jmpbuf
# define png_jmpbuf(png_ptr) png_ptr->jmpbuf
@ -127,7 +127,7 @@ PNGAPI
#endif
read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
{
if(png_ptr == NULL || row_number > PNG_MAX_UINT) return;
if(png_ptr == NULL || row_number > PNG_UINT_31_MAX) return;
if(status_pass != pass)
{
fprintf(stdout,"\n Pass %d: ",pass);
@ -154,7 +154,7 @@ PNGAPI
#endif
write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
{
if(png_ptr == NULL || row_number > PNG_MAX_UINT || pass > 7) return;
if(png_ptr == NULL || row_number > PNG_UINT_31_MAX || pass > 7) return;
fprintf(stdout, "w");
}
@ -470,7 +470,7 @@ pngtest_error(png_structp png_ptr, png_const_charp message)
/* END of code to validate stdio-free compilation */
/* START of code to validate memory allocation and deallocation */
#ifdef PNG_USER_MEM_SUPPORTED
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
/* Allocate memory. For reasonable files, size should never exceed
64K. However, zlib may allocate more then 64K if you don't tell
@ -510,23 +510,34 @@ png_debug_malloc(png_structp png_ptr, png_uint_32 size)
/* This calls the library allocator twice, once to get the requested
buffer and once to get a new free list entry. */
{
memory_infop pinfo = (memory_infop)png_malloc_default(png_ptr,
(png_uint_32)sizeof *pinfo);
/* Disable malloc_fn and free_fn */
memory_infop pinfo;
png_set_mem_fn(png_ptr, NULL, NULL, NULL);
pinfo = (memory_infop)png_malloc(png_ptr,
(png_uint_32)png_sizeof (*pinfo));
pinfo->size = size;
current_allocation += size;
total_allocation += size;
num_allocations ++;
if (current_allocation > maximum_allocation)
maximum_allocation = current_allocation;
pinfo->pointer = (png_voidp)png_malloc_default(png_ptr, size);
pinfo->pointer = (png_voidp)png_malloc(png_ptr, size);
/* Restore malloc_fn and free_fn */
png_set_mem_fn(png_ptr, png_voidp_NULL, (png_malloc_ptr)png_debug_malloc,
(png_free_ptr)png_debug_free);
if (size != 0 && pinfo->pointer == NULL)
{
current_allocation -= size;
total_allocation -= size;
png_error(png_ptr,
"out of memory in pngtest->png_debug_malloc.");
}
pinfo->next = pinformation;
pinformation = pinfo;
/* Make sure the caller isn't assuming zeroed memory. */
png_memset(pinfo->pointer, 0xdd, pinfo->size);
#if PNG_DEBUG
if(verbose)
printf("png_malloc %lu bytes at %x\n",size,pinfo->pointer);
#endif
assert(pinfo->size != 12345678);
return (png_voidp)(pinfo->pointer);
}
@ -575,14 +586,12 @@ png_debug_free(png_structp png_ptr, png_voidp ptr)
}
/* Finally free the data. */
#if PNG_DEBUG
if(verbose)
printf("Freeing %x\n",ptr);
#endif
png_free_default(png_ptr, ptr);
ptr=NULL;
}
#endif /* PNG_USER_MEM_SUPPORTED */
#endif /* PNG_USER_MEM_SUPPORTED && PNG_DEBUG */
/* END of code to test memory allocation/deallocation */
/* Test one file */
@ -644,7 +653,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
}
png_debug(0, "Allocating read and write structures\n");
#ifdef PNG_USER_MEM_SUPPORTED
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
read_ptr = png_create_read_struct_2(PNG_LIBPNG_VER_STRING, png_voidp_NULL,
png_error_ptr_NULL, png_error_ptr_NULL, png_voidp_NULL,
(png_malloc_ptr)png_debug_malloc, (png_free_ptr)png_debug_free);
@ -657,7 +666,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
pngtest_warning);
#endif
#ifdef PNG_WRITE_SUPPORTED
#ifdef PNG_USER_MEM_SUPPORTED
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
write_ptr = png_create_write_struct_2(PNG_LIBPNG_VER_STRING, png_voidp_NULL,
png_error_ptr_NULL, png_error_ptr_NULL, png_voidp_NULL,
(png_malloc_ptr)png_debug_malloc, (png_free_ptr)png_debug_free);
@ -699,7 +708,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
return (1);
}
#ifdef USE_FAR_KEYWORD
png_memcpy(png_jmpbuf(read_ptr),jmpbuf,sizeof(jmp_buf));
png_memcpy(png_jmpbuf(read_ptr),jmpbuf,png_sizeof(jmp_buf));
#endif
#ifdef PNG_WRITE_SUPPORTED
@ -721,7 +730,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
return (1);
}
#ifdef USE_FAR_KEYWORD
png_memcpy(png_jmpbuf(write_ptr),jmpbuf,sizeof(jmp_buf));
png_memcpy(png_jmpbuf(write_ptr),jmpbuf,png_sizeof(jmp_buf));
#endif
#endif
#endif
@ -771,14 +780,18 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
png_set_write_user_transform_fn(write_ptr, count_zero_samples);
#endif
#define HANDLE_CHUNK_IF_SAFE 2
#define HANDLE_CHUNK_ALWAYS 3
#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
png_set_keep_unknown_chunks(read_ptr, HANDLE_CHUNK_ALWAYS,
# ifndef PNG_HANDLE_CHUNK_ALWAYS
# define PNG_HANDLE_CHUNK_ALWAYS 3
# endif
png_set_keep_unknown_chunks(read_ptr, PNG_HANDLE_CHUNK_ALWAYS,
png_bytep_NULL, 0);
#endif
#if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED)
png_set_keep_unknown_chunks(write_ptr, HANDLE_CHUNK_IF_SAFE,
# ifndef PNG_HANDLE_CHUNK_IF_SAFE
# define PNG_HANDLE_CHUNK_IF_SAFE 2
# endif
png_set_keep_unknown_chunks(write_ptr, PNG_HANDLE_CHUNK_IF_SAFE,
png_bytep_NULL, 0);
#endif
@ -1306,8 +1319,8 @@ main(int argc, char *argv[])
/* Show the version of libpng used in building the application */
fprintf(STDERR," pngtest (%lu):%s", (unsigned long)PNG_LIBPNG_VER,
PNG_HEADER_VERSION_STRING);
fprintf(STDERR," sizeof(png_struct)=%ld, sizeof(png_info)=%ld\n",
(long)sizeof(png_struct), (long)sizeof(png_info));
fprintf(STDERR," png_sizeof(png_struct)=%ld, png_sizeof(png_info)=%ld\n",
(long)png_sizeof(png_struct), (long)png_sizeof(png_info));
/* Do some consistency checking on the memory allocation settings, I'm
not sure this matters, but it is nice to know, the first of these
@ -1375,7 +1388,7 @@ main(int argc, char *argv[])
if (multiple)
{
int i;
#ifdef PNG_USER_MEM_SUPPORTED
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
int allocation_now = current_allocation;
#endif
for (i=2; i<argc; ++i)
@ -1410,7 +1423,7 @@ main(int argc, char *argv[])
fprintf(STDERR, " FAIL\n");
ierror += kerror;
}
#ifdef PNG_USER_MEM_SUPPORTED
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
if (allocation_now != current_allocation)
fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n",
current_allocation-allocation_now);
@ -1429,7 +1442,7 @@ main(int argc, char *argv[])
}
#endif
}
#ifdef PNG_USER_MEM_SUPPORTED
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
fprintf(STDERR, " Current memory allocation: %10d bytes\n",
current_allocation);
fprintf(STDERR, " Maximum memory allocation: %10d bytes\n",
@ -1446,7 +1459,7 @@ main(int argc, char *argv[])
for (i=0; i<3; ++i)
{
int kerror;
#ifdef PNG_USER_MEM_SUPPORTED
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
int allocation_now = current_allocation;
#endif
if (i == 1) status_dots_requested = 1;
@ -1485,7 +1498,7 @@ main(int argc, char *argv[])
fprintf(STDERR, " FAIL\n");
ierror += kerror;
}
#ifdef PNG_USER_MEM_SUPPORTED
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
if (allocation_now != current_allocation)
fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n",
current_allocation-allocation_now);
@ -1504,7 +1517,7 @@ main(int argc, char *argv[])
}
#endif
}
#ifdef PNG_USER_MEM_SUPPORTED
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
fprintf(STDERR, " Current memory allocation: %10d bytes\n",
current_allocation);
fprintf(STDERR, " Maximum memory allocation: %10d bytes\n",
@ -1538,4 +1551,4 @@ main(int argc, char *argv[])
}
/* Generate a compiler error if there is an old png.h in the search path. */
typedef version_1_0_15 your_png_h_is_not_version_1_0_15;
typedef version_1_0_16 your_png_h_is_not_version_1_0_16;

BIN
pngtest.png
View File

Binary file not shown.
Side by Side Swipe Overlay

Before

Width:  |  Height:  |  Size: 8.4 KiB

After

Width:  |  Height:  |  Size: 8.4 KiB

4
pngtrans.c
View File

@ -1,9 +1,9 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers)
*
* libpng 1.0.15 - October 3, 2002
* libpng 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 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.)
*/

68
pngvcrd.c
View File

@ -2,9 +2,9 @@
*
* For Intel x86 CPU and Microsoft Visual C++ compiler
*
* libpng version 1.0.15 - October 3, 2002
* libpng version 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 Glenn Randers-Pehrson
* Copyright (c) 1998, Intel Corporation
*
* Contributed by Nirav Chhatrapati, Intel Corporation, 1998
@ -115,15 +115,18 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
png_debug(1,"in png_combine_row_asm\n");
if (mmx_supported == 2) {
#if !defined(PNG_1_0_X)
/* this should have happened in png_init_mmx_flags() already */
png_warning(png_ptr, "asm_flags may not have been initialized");
#endif
png_mmx_support();
}
if (mask == 0xff)
{
png_memcpy(row, png_ptr->row_buf + 1,
(png_size_t)((png_ptr->width * png_ptr->row_info.pixel_depth + 7) >> 3));
(png_size_t)PNG_ROWBYTES(png_ptr->row_info.pixel_depth,
png_ptr->width));
}
/* GRR: add "else if (mask == 0)" case?
* or does png_combine_row() not even get called in that case? */
@ -307,8 +310,12 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
__int64 mask0=0x0102040810204080;
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
/* && mmx_supported */ )
#else
if (mmx_supported)
#endif
{
srcptr = png_ptr->row_buf + 1;
dstptr = row;
@ -408,8 +415,12 @@ end8:
__int64 mask1=0x0101020204040808,
mask0=0x1010202040408080;
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
/* && mmx_supported */ )
#else
if (mmx_supported)
#endif
{
srcptr = png_ptr->row_buf + 1;
dstptr = row;
@ -529,8 +540,12 @@ end16:
len = (png_ptr->width)&~7;
diff = (png_ptr->width)&7;
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
/* && mmx_supported */ )
#else
if (mmx_supported)
#endif
{
_asm
{
@ -661,8 +676,12 @@ end24:
len = (png_ptr->width)&~7;
diff = (png_ptr->width)&7;
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
/* && mmx_supported */ )
#else
if (mmx_supported)
#endif
{
_asm
{
@ -796,8 +815,12 @@ end32:
mask1=0x2020202040404040,
mask0=0x4040808080808080;
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
/* && mmx_supported */ )
#else
if (mmx_supported)
#endif
{
srcptr = png_ptr->row_buf + 1;
dstptr = row;
@ -987,8 +1010,10 @@ png_do_read_interlace(png_structp png_ptr)
png_debug(1,"in png_do_read_interlace\n");
if (mmx_supported == 2) {
#if !defined(PNG_1_0_X)
/* this should have happened in png_init_mmx_flags() already */
png_warning(png_ptr, "asm_flags may not have been initialized");
#endif
png_mmx_support();
}
@ -1189,8 +1214,12 @@ png_do_read_interlace(png_structp png_ptr)
// NOTE: there is NO MMX code for 48-bit and 64-bit images
// use MMX routine if machine supports it
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_INTERLACE)
/* && mmx_supported */ )
#else
if (mmx_supported)
#endif
{
if (pixel_bytes == 3)
{
@ -1874,8 +1903,8 @@ loop4_pass4:
} /* end switch (row_info->pixel_depth) */
row_info->width = final_width;
row_info->rowbytes = ((final_width *
(png_uint_32)row_info->pixel_depth + 7) >> 3);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,final_width);
}
}
@ -3652,8 +3681,10 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
#endif
if (mmx_supported == 2) {
#if !defined(PNG_1_0_X)
/* this should have happened in png_init_mmx_flags() already */
png_warning(png_ptr, "asm_flags may not have been initialized");
#endif
png_mmx_support();
}
@ -3663,6 +3694,7 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
{
case 0: sprintf(filnm, "none");
break;
#if !defined(PNG_1_0_X)
case 1: sprintf(filnm, "sub-%s",
(png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_SUB)? "MMX" : "x86");
break;
@ -3675,6 +3707,16 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
case 4: sprintf(filnm, "Paeth-%s",
(png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_PAETH)? "MMX":"x86");
break;
#else
case 1: sprintf(filnm, "sub");
break;
case 2: sprintf(filnm, "up");
break;
case 3: sprintf(filnm, "avg");
break;
case 4: sprintf(filnm, "Paeth");
break;
#endif
default: sprintf(filnm, "unknw");
break;
}
@ -3691,9 +3733,13 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
case PNG_FILTER_VALUE_SUB:
{
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_SUB) &&
(row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) &&
(row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold))
#else
if (mmx_supported)
#endif
{
png_read_filter_row_mmx_sub(row_info, row);
}
@ -3716,9 +3762,13 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
case PNG_FILTER_VALUE_UP:
{
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_UP) &&
(row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) &&
(row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold))
#else
if (mmx_supported)
#endif
{
png_read_filter_row_mmx_up(row_info, row, prev_row);
}
@ -3740,9 +3790,13 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
case PNG_FILTER_VALUE_AVG:
{
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_AVG) &&
(row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) &&
(row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold))
#else
if (mmx_supported)
#endif
{
png_read_filter_row_mmx_avg(row_info, row, prev_row);
}
@ -3774,9 +3828,13 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
case PNG_FILTER_VALUE_PAETH:
{
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_PAETH) &&
(row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) &&
(row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold))
#else
if (mmx_supported)
#endif
{
png_read_filter_row_mmx_paeth(row_info, row, prev_row);
}

4
pngwio.c
View File

@ -1,9 +1,9 @@
/* pngwio.c - functions for data output
*
* libpng 1.0.15 - October 3, 2002
* libpng 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 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.)
*

70
pngwrite.c
View File

@ -1,9 +1,9 @@
/* pngwrite.c - general routines to write a PNG file
*
* libpng 1.0.15 - October 3, 2002
* libpng 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 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.)
*/
@ -104,9 +104,10 @@ png_write_info_before_PLTE(png_structp png_ptr, png_infop info_ptr)
up++)
{
int keep=png_handle_as_unknown(png_ptr, up->name);
if (keep != HANDLE_CHUNK_NEVER &&
up->location && (!(up->location & PNG_HAVE_PLTE)) &&
((up->name[3] & 0x20) || keep == HANDLE_CHUNK_ALWAYS ||
if (keep != PNG_HANDLE_CHUNK_NEVER &&
up->location && !(up->location & PNG_HAVE_PLTE) &&
!(up->location & PNG_HAVE_IDAT) &&
((up->name[3] & 0x20) || keep == PNG_HANDLE_CHUNK_ALWAYS ||
(png_ptr->flags & PNG_FLAG_KEEP_UNSAFE_CHUNKS)))
{
png_write_chunk(png_ptr, up->name, up->data, up->size);
@ -267,10 +268,10 @@ png_write_info(png_structp png_ptr, png_infop info_ptr)
up++)
{
int keep=png_handle_as_unknown(png_ptr, up->name);
if (keep != HANDLE_CHUNK_NEVER &&
if (keep != PNG_HANDLE_CHUNK_NEVER &&
up->location && (up->location & PNG_HAVE_PLTE) &&
!(up->location & PNG_HAVE_IDAT) &&
((up->name[3] & 0x20) || keep == HANDLE_CHUNK_ALWAYS ||
((up->name[3] & 0x20) || keep == PNG_HANDLE_CHUNK_ALWAYS ||
(png_ptr->flags & PNG_FLAG_KEEP_UNSAFE_CHUNKS)))
{
png_write_chunk(png_ptr, up->name, up->data, up->size);
@ -367,9 +368,9 @@ png_write_end(png_structp png_ptr, png_infop info_ptr)
up++)
{
int keep=png_handle_as_unknown(png_ptr, up->name);
if (keep != HANDLE_CHUNK_NEVER &&
if (keep != PNG_HANDLE_CHUNK_NEVER &&
up->location && (up->location & PNG_AFTER_IDAT) &&
((up->name[3] & 0x20) || keep == HANDLE_CHUNK_ALWAYS ||
((up->name[3] & 0x20) || keep == PNG_HANDLE_CHUNK_ALWAYS ||
(png_ptr->flags & PNG_FLAG_KEEP_UNSAFE_CHUNKS)))
{
png_write_chunk(png_ptr, up->name, up->data, up->size);
@ -457,6 +458,12 @@ png_create_write_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
#endif
#endif /* PNG_1_0_X */
/* added at libpng-1.2.6 */
#ifdef PNG_SET_USER_LIMITS_SUPPORTED
png_ptr->user_width_max=PNG_USER_WIDTH_MAX;
png_ptr->user_height_max=PNG_USER_HEIGHT_MAX;
#endif
#ifdef PNG_SETJMP_SUPPORTED
#ifdef USE_FAR_KEYWORD
if (setjmp(jmpbuf))
@ -470,7 +477,7 @@ png_create_write_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
return (NULL);
}
#ifdef USE_FAR_KEYWORD
png_memcpy(png_ptr->jmpbuf,jmpbuf,sizeof(jmp_buf));
png_memcpy(png_ptr->jmpbuf,jmpbuf,png_sizeof(jmp_buf));
#endif
#endif
@ -537,7 +544,7 @@ png_create_write_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
#ifdef USE_FAR_KEYWORD
if (setjmp(jmpbuf))
PNG_ABORT();
png_memcpy(png_ptr->jmpbuf,jmpbuf,sizeof(jmp_buf));
png_memcpy(png_ptr->jmpbuf,jmpbuf,png_sizeof(jmp_buf));
#else
if (setjmp(png_ptr->jmpbuf))
PNG_ABORT();
@ -561,7 +568,8 @@ png_write_init_2(png_structp png_ptr, png_const_charp user_png_ver,
{
/* We only come here via pre-1.0.12-compiled applications */
#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE)
if(sizeof(png_struct) > png_struct_size || sizeof(png_info) > png_info_size)
if(png_sizeof(png_struct) > png_struct_size ||
png_sizeof(png_info) > png_info_size)
{
char msg[80];
png_ptr->warning_fn=NULL;
@ -576,7 +584,7 @@ png_write_init_2(png_structp png_ptr, png_const_charp user_png_ver,
png_warning(png_ptr, msg);
}
#endif
if(sizeof(png_struct) > png_struct_size)
if(png_sizeof(png_struct) > png_struct_size)
{
png_ptr->error_fn=NULL;
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
@ -585,7 +593,7 @@ png_write_init_2(png_structp png_ptr, png_const_charp user_png_ver,
png_error(png_ptr,
"The png struct allocated by the application for writing is too small.");
}
if(sizeof(png_info) > png_info_size)
if(png_sizeof(png_info) > png_info_size)
{
png_ptr->error_fn=NULL;
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
@ -626,10 +634,10 @@ png_write_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
#ifdef PNG_SETJMP_SUPPORTED
/* save jump buffer and error functions */
png_memcpy(tmp_jmp, png_ptr->jmpbuf, sizeof (jmp_buf));
png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof (jmp_buf));
#endif
if (sizeof(png_struct) > png_struct_size)
if (png_sizeof(png_struct) > png_struct_size)
{
png_destroy_struct(png_ptr);
png_ptr = (png_structp)png_create_struct(PNG_STRUCT_PNG);
@ -637,7 +645,13 @@ png_write_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
}
/* reset all variables to 0 */
png_memset(png_ptr, 0, sizeof (png_struct));
png_memset(png_ptr, 0, png_sizeof (png_struct));
/* added at libpng-1.2.6 */
#ifdef PNG_SET_USER_LIMITS_SUPPORTED
png_ptr->user_width_max=PNG_USER_WIDTH_MAX;
png_ptr->user_height_max=PNG_USER_HEIGHT_MAX;
#endif
#if !defined(PNG_1_0_X)
#ifdef PNG_ASSEMBLER_CODE_SUPPORTED
@ -647,7 +661,7 @@ png_write_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
#ifdef PNG_SETJMP_SUPPORTED
/* restore jump buffer */
png_memcpy(png_ptr->jmpbuf, tmp_jmp, sizeof (jmp_buf));
png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof (jmp_buf));
#endif
png_set_write_fn(png_ptr, png_voidp_NULL, png_rw_ptr_NULL,
@ -827,8 +841,8 @@ png_write_row(png_structp png_ptr, png_bytep row)
png_ptr->row_info.pixel_depth = (png_byte)(png_ptr->row_info.bit_depth *
png_ptr->row_info.channels);
png_ptr->row_info.rowbytes = ((png_ptr->row_info.width *
(png_uint_32)png_ptr->row_info.pixel_depth + 7) >> 3);
png_ptr->row_info.rowbytes = PNG_ROWBYTES(png_ptr->row_info.pixel_depth,
png_ptr->row_info.width);
png_debug1(3, "row_info->color_type = %d\n", png_ptr->row_info.color_type);
png_debug1(3, "row_info->width = %lu\n", png_ptr->row_info.width);
@ -1049,7 +1063,7 @@ png_write_destroy(png_structp png_ptr)
#ifdef PNG_SETJMP_SUPPORTED
/* reset structure */
png_memcpy(tmp_jmp, png_ptr->jmpbuf, sizeof (jmp_buf));
png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof (jmp_buf));
#endif
error_fn = png_ptr->error_fn;
@ -1059,7 +1073,7 @@ png_write_destroy(png_structp png_ptr)
free_fn = png_ptr->free_fn;
#endif
png_memset(png_ptr, 0, sizeof (png_struct));
png_memset(png_ptr, 0, png_sizeof (png_struct));
png_ptr->error_fn = error_fn;
png_ptr->warning_fn = warning_fn;
@ -1069,7 +1083,7 @@ png_write_destroy(png_structp png_ptr)
#endif
#ifdef PNG_SETJMP_SUPPORTED
png_memcpy(png_ptr->jmpbuf, tmp_jmp, sizeof (jmp_buf));
png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof (jmp_buf));
#endif
}
@ -1211,7 +1225,7 @@ png_set_filter_heuristics(png_structp png_ptr, int heuristic_method,
if (png_ptr->prev_filters == NULL)
{
png_ptr->prev_filters = (png_bytep)png_malloc(png_ptr,
(png_uint_32)(sizeof(png_byte) * num_weights));
(png_uint_32)(png_sizeof(png_byte) * num_weights));
/* To make sure that the weighting starts out fairly */
for (i = 0; i < num_weights; i++)
@ -1223,10 +1237,10 @@ png_set_filter_heuristics(png_structp png_ptr, int heuristic_method,
if (png_ptr->filter_weights == NULL)
{
png_ptr->filter_weights = (png_uint_16p)png_malloc(png_ptr,
(png_uint_32)(sizeof(png_uint_16) * num_weights));
(png_uint_32)(png_sizeof(png_uint_16) * num_weights));
png_ptr->inv_filter_weights = (png_uint_16p)png_malloc(png_ptr,
(png_uint_32)(sizeof(png_uint_16) * num_weights));
(png_uint_32)(png_sizeof(png_uint_16) * num_weights));
for (i = 0; i < num_weights; i++)
{
png_ptr->inv_filter_weights[i] =
@ -1257,10 +1271,10 @@ png_set_filter_heuristics(png_structp png_ptr, int heuristic_method,
if (png_ptr->filter_costs == NULL)
{
png_ptr->filter_costs = (png_uint_16p)png_malloc(png_ptr,
(png_uint_32)(sizeof(png_uint_16) * PNG_FILTER_VALUE_LAST));
(png_uint_32)(png_sizeof(png_uint_16) * PNG_FILTER_VALUE_LAST));
png_ptr->inv_filter_costs = (png_uint_16p)png_malloc(png_ptr,
(png_uint_32)(sizeof(png_uint_16) * PNG_FILTER_VALUE_LAST));
(png_uint_32)(png_sizeof(png_uint_16) * PNG_FILTER_VALUE_LAST));
for (i = 0; i < PNG_FILTER_VALUE_LAST; i++)
{

18
pngwtran.c
View File

@ -1,9 +1,9 @@
/* pngwtran.c - transforms the data in a row for PNG writers
*
* libpng 1.0.15 - October 3, 2002
* libpng version 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 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.)
*/
@ -195,8 +195,8 @@ png_do_pack(png_row_infop row_info, png_bytep row, png_uint_32 bit_depth)
}
row_info->bit_depth = (png_byte)bit_depth;
row_info->pixel_depth = (png_byte)(bit_depth * row_info->channels);
row_info->rowbytes =
((row_info->width * row_info->pixel_depth + 7) >> 3);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,
row_info->width);
}
}
#endif
@ -546,11 +546,11 @@ png_do_write_intrapixel(png_row_infop row_info, png_bytep row)
for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
{
png_uint_32 s0=*(rp )<<8 | *(rp+1);
png_uint_32 s1=*(rp+2)<<8 | *(rp+3);
png_uint_32 s2=*(rp+4)<<8 | *(rp+5);
png_uint_32 red=(s0-s1)&0xffff;
png_uint_32 blue=(s2-s1)&0xffff;
png_uint_32 s0 = (*(rp ) << 8) | *(rp+1);
png_uint_32 s1 = (*(rp+2) << 8) | *(rp+3);
png_uint_32 s2 = (*(rp+4) << 8) | *(rp+5);
png_uint_32 red = (png_uint_32)((s0-s1) & 0xffffL);
png_uint_32 blue = (png_uint_32)((s2-s1) & 0xffffL);
*(rp ) = (png_byte)((red >> 8) & 0xff);
*(rp+1) = (png_byte)(red & 0xff);
*(rp+4) = (png_byte)((blue >> 8) & 0xff);

89
pngwutil.c
View File

@ -1,9 +1,9 @@
/* pngwutil.c - utilities to write a PNG file
*
* libpng 1.0.15 - October 3, 2002
* libpng version 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*/
@ -234,14 +234,16 @@ png_text_compress(png_structp png_ptr,
old_ptr = comp->output_ptr;
comp->output_ptr = (png_charpp)png_malloc(png_ptr,
(png_uint_32)(comp->max_output_ptr * sizeof (png_charpp)));
(png_uint_32)(comp->max_output_ptr *
png_sizeof (png_charpp)));
png_memcpy(comp->output_ptr, old_ptr, old_max
* sizeof (png_charp));
* png_sizeof (png_charp));
png_free(png_ptr, old_ptr);
}
else
comp->output_ptr = (png_charpp)png_malloc(png_ptr,
(png_uint_32)(comp->max_output_ptr * sizeof (png_charp)));
(png_uint_32)(comp->max_output_ptr *
png_sizeof (png_charp)));
}
/* save the data */
@ -283,14 +285,16 @@ png_text_compress(png_structp png_ptr,
old_ptr = comp->output_ptr;
/* This could be optimized to realloc() */
comp->output_ptr = (png_charpp)png_malloc(png_ptr,
(png_uint_32)(comp->max_output_ptr * sizeof (png_charpp)));
(png_uint_32)(comp->max_output_ptr *
png_sizeof (png_charpp)));
png_memcpy(comp->output_ptr, old_ptr,
old_max * sizeof (png_charp));
old_max * png_sizeof (png_charp));
png_free(png_ptr, old_ptr);
}
else
comp->output_ptr = (png_charpp)png_malloc(png_ptr,
(png_uint_32)(comp->max_output_ptr * sizeof (png_charp)));
(png_uint_32)(comp->max_output_ptr *
png_sizeof (png_charp)));
}
/* save off the data */
@ -464,11 +468,12 @@ png_write_IHDR(png_structp png_ptr, png_uint_32 width, png_uint_32 height,
#if defined(PNG_MNG_FEATURES_SUPPORTED)
png_ptr->filter_type = (png_byte)filter_type;
#endif
png_ptr->compression_type = (png_byte)compression_type;
png_ptr->width = width;
png_ptr->height = height;
png_ptr->pixel_depth = (png_byte)(bit_depth * png_ptr->channels);
png_ptr->rowbytes = ((width * (png_size_t)png_ptr->pixel_depth + 7) >> 3);
png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth, width);
/* set the usr info, so any transformations can modify it */
png_ptr->usr_width = png_ptr->width;
png_ptr->usr_bit_depth = png_ptr->bit_depth;
@ -596,6 +601,46 @@ png_write_IDAT(png_structp png_ptr, png_bytep data, png_size_t length)
PNG_IDAT;
#endif
png_debug(1, "in png_write_IDAT\n");
/* Optimize the CMF field in the zlib stream. */
/* This hack of the zlib stream is compliant to the stream specification. */
if (!(png_ptr->mode & PNG_HAVE_IDAT) &&
png_ptr->compression_type == PNG_COMPRESSION_TYPE_BASE)
{
unsigned int z_cmf = data[0]; /* zlib compression method and flags */
if ((z_cmf & 0x0f) == 8 && (z_cmf & 0xf0) <= 0x70)
{
/* Avoid memory underflows and multiplication overflows. */
/* The conditions below are practically always satisfied;
however, they still must be checked. */
if (length >= 2 &&
png_ptr->height < 16384 && png_ptr->width < 16384)
{
png_uint_32 uncompressed_idat_size = png_ptr->height *
(PNG_ROWBYTES(png_ptr->channels*png_ptr->bit_depth,
png_ptr->channels * png_ptr->bit_depth + 15) >> 3);
unsigned int z_cinfo = z_cmf >> 4;
unsigned int half_z_window_size = 1 << (z_cinfo + 7);
while (uncompressed_idat_size <= half_z_window_size &&
half_z_window_size >= 256)
{
z_cinfo--;
half_z_window_size >>= 1;
}
z_cmf = (z_cmf & 0x0f) | (z_cinfo << 4);
if (data[0] != (png_byte)z_cmf)
{
data[0] = (png_byte)z_cmf;
data[1] &= 0xe0;
data[1] += (png_byte)(0x1f - ((z_cmf << 8) + data[1]) % 0x1f);
}
}
}
else
png_error(png_ptr,
"Invalid zlib compression method or flags in IDAT");
}
png_write_chunk(png_ptr, (png_bytep)png_IDAT, data, length);
png_ptr->mode |= PNG_HAVE_IDAT;
}
@ -1141,7 +1186,12 @@ png_check_keyword(png_structp png_ptr, png_charp key, png_charpp new_key)
png_debug1(2, "Keyword to be checked is '%s'\n", key);
*new_key = (png_charp)png_malloc(png_ptr, (png_uint_32)(key_len + 2));
*new_key = (png_charp)png_malloc_warn(png_ptr, (png_uint_32)(key_len + 2));
if (*new_key == NULL)
{
png_warning(png_ptr, "Out of memory while procesing keyword");
return ((png_size_t)0);
}
/* Replace non-printing characters with a blank and print a warning */
for (kp = key, dp = *new_key; *kp != '\0'; kp++, dp++)
@ -1461,7 +1511,7 @@ png_write_pCAL(png_structp png_ptr, png_charp purpose, png_int_32 X0,
total_len = purpose_len + units_len + 10;
params_len = (png_uint_32p)png_malloc(png_ptr, (png_uint_32)(nparams
*sizeof(png_uint_32)));
*png_sizeof(png_uint_32)));
/* Find the length of each parameter, making sure we don't count the
null terminator for the last parameter. */
@ -1641,8 +1691,8 @@ png_write_start_row(png_structp png_ptr)
png_size_t buf_size;
png_debug(1, "in png_write_start_row\n");
buf_size = (png_size_t)(((png_ptr->width * png_ptr->usr_channels *
png_ptr->usr_bit_depth + 7) >> 3) + 1);
buf_size = (png_size_t)(PNG_ROWBYTES(
png_ptr->usr_channels*png_ptr->usr_bit_depth,png_ptr->width)+1);
/* set up row buffer */
png_ptr->row_buf = (png_bytep)png_malloc(png_ptr, (png_uint_32)buf_size);
@ -1778,9 +1828,8 @@ png_write_finish_row(png_structp png_ptr)
{
if (png_ptr->prev_row != NULL)
png_memset(png_ptr->prev_row, 0,
(png_size_t) (((png_uint_32)png_ptr->usr_channels *
(png_uint_32)png_ptr->usr_bit_depth *
png_ptr->width + 7) >> 3) + 1);
(png_size_t)(PNG_ROWBYTES(png_ptr->usr_channels*
png_ptr->usr_bit_depth,png_ptr->width))+1);
return;
}
}
@ -1987,8 +2036,8 @@ png_do_write_interlace(png_row_infop row_info, png_bytep row, int pass)
png_pass_inc[pass] - 1 -
png_pass_start[pass]) /
png_pass_inc[pass];
row_info->rowbytes = ((row_info->width *
row_info->pixel_depth + 7) >> 3);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,
row_info->width);
}
}
#endif
@ -2014,7 +2063,7 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info)
png_debug(1, "in png_write_find_filter\n");
/* find out how many bytes offset each pixel is */
bpp = (row_info->pixel_depth + 7) / 8;
bpp = (row_info->pixel_depth + 7) >> 3;
prev_row = png_ptr->prev_row;
best_row = row_buf = png_ptr->row_buf;
@ -2165,7 +2214,7 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info)
sum += (v < 128) ? v : 256 - v;
}
for (lp = row_buf + 1; i < row_info->rowbytes;
for (lp = row_buf + 1; i < row_bytes;
i++, rp++, lp++, dp++)
{
v = *dp = (png_byte)(((int)*rp - (int)*lp) & 0xff);

19
projects/borland/libpng.readme.txt
View File

@ -1,19 +0,0 @@
Project files to build libpng using Borland C++ Builder v5.0
To use this dll, you will need to:
1) add the following conditional defines to your project
PNG_USE_DLL
Z_PREFIX
2) add the paths to png.h and zlib.h to your include path
3) add libpng.lib or libpngstat.lib to the project.
If you are using libpng.dll, libpng.dll and zlib.dll will be required for the code to run.
Alternatively, the libpng.dll can be built using zlibstat.lib to produce one dll containing both the zlib and png code.
See the libpng documentation for instructions on how to use the code.

33
projects/borland/zlib+libpng.bpg
View File

@ -1,33 +0,0 @@
#------------------------------------------------------------------------------
VERSION = BWS.01
#------------------------------------------------------------------------------
!ifndef ROOT
ROOT = $(MAKEDIR)\..
!endif
#------------------------------------------------------------------------------
MAKE = $(ROOT)\bin\make.exe -$(MAKEFLAGS) -f$**
DCC = $(ROOT)\bin\dcc32.exe $**
BRCC = $(ROOT)\bin\brcc32.exe $**
#------------------------------------------------------------------------------
PROJECTS = zlibstat.lib libpngstat.lib zlib.dll libpng.dll
#------------------------------------------------------------------------------
default: $(PROJECTS)
#------------------------------------------------------------------------------
libpng.dll: libpng.bpr
$(ROOT)\bin\bpr2mak $**
$(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
zlibstat.lib: zlibstat.bpr
$(ROOT)\bin\bpr2mak -t$(ROOT)\bin\deflib.bmk $**
$(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
zlib.dll: zlib.bpr
$(ROOT)\bin\bpr2mak $**
$(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
libpngstat.lib: libpngstat.bpr
$(ROOT)\bin\bpr2mak -t$(ROOT)\bin\deflib.bmk $**
$(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak

20
projects/borland/zlib.bpf
View File

@ -1,20 +0,0 @@
USEUNIT("zlib.cpp");
USEUNIT("..\..\..\zlib\zutil.c");
USEUNIT("..\..\..\zlib\compress.c");
USEUNIT("..\..\..\zlib\crc32.c");
USEUNIT("..\..\..\zlib\deflate.c");
USEUNIT("..\..\..\zlib\gzio.c");
USEUNIT("..\..\..\zlib\infblock.c");
USEUNIT("..\..\..\zlib\infcodes.c");
USEUNIT("..\..\..\zlib\inffast.c");
USEUNIT("..\..\..\zlib\inflate.c");
USEUNIT("..\..\..\zlib\inftrees.c");
USEUNIT("..\..\..\zlib\infutil.c");
USEUNIT("..\..\..\zlib\trees.c");
USEUNIT("..\..\..\zlib\uncompr.c");
USEUNIT("..\..\..\zlib\adler32.c");
//---------------------------------------------------------------------------
This file is used by the project manager only and should be treated like the project file
DllEntryPoint

25
projects/borland/zlib.bpg
View File

@ -1,25 +0,0 @@
#------------------------------------------------------------------------------
VERSION = BWS.01
#------------------------------------------------------------------------------
!ifndef ROOT
ROOT = $(MAKEDIR)\..
!endif
#------------------------------------------------------------------------------
MAKE = $(ROOT)\bin\make.exe -$(MAKEFLAGS) -f$**
DCC = $(ROOT)\bin\dcc32.exe $**
BRCC = $(ROOT)\bin\brcc32.exe $**
#------------------------------------------------------------------------------
PROJECTS = zlibstat.lib zlib.dll
#------------------------------------------------------------------------------
default: $(PROJECTS)
#------------------------------------------------------------------------------
zlibstat.lib: zlibstat.bpr
$(ROOT)\bin\bpr2mak -t$(ROOT)\bin\deflib.bmk $**
$(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
zlib.dll: zlib.bpr
$(ROOT)\bin\bpr2mak $**
$(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak

147
projects/borland/zlib.bpr
View File

@ -1,147 +0,0 @@
<?xml version='1.0' encoding='utf-8' ?>
<!-- C++Builder XML Project -->
<PROJECT>
<MACROS>
<VERSION value="BCB.05.03"/>
<PROJECT value="zlib.dll"/>
<OBJFILES value="zlib.obj ..\..\..\zlib\zutil.obj ..\..\..\zlib\compress.obj
..\..\..\zlib\crc32.obj ..\..\..\zlib\deflate.obj ..\..\..\zlib\gzio.obj
..\..\..\zlib\infblock.obj ..\..\..\zlib\infcodes.obj
..\..\..\zlib\inffast.obj ..\..\..\zlib\inflate.obj
..\..\..\zlib\inftrees.obj ..\..\..\zlib\infutil.obj
..\..\..\zlib\trees.obj ..\..\..\zlib\uncompr.obj ..\..\..\zlib\adler32.obj"/>
<RESFILES value=""/>
<DEFFILE value=""/>
<RESDEPEN value="$(RESFILES)"/>
<LIBFILES value=""/>
<LIBRARIES value="bcbsmp50.lib dclocx50.lib NMFast50.lib Tee50.lib Vclx50.lib Vcl50.lib"/>
<SPARELIBS value="Vcl50.lib Vclx50.lib Tee50.lib NMFast50.lib dclocx50.lib bcbsmp50.lib"/>
<PACKAGES value="Vcl50.bpi Vclx50.bpi bcbsmp50.bpi Qrpt50.bpi Vcldb50.bpi Vclbde50.bpi
ibsmp50.bpi vcldbx50.bpi TeeUI50.bpi TeeDB50.bpi Tee50.bpi TeeQR50.bpi
VCLIB50.bpi bcbie50.bpi vclie50.bpi Inetdb50.bpi Inet50.bpi NMFast50.bpi
dclocx50.bpi bcb97axserver50.bpi SIMULUSCOMPONENTS.bpi Simulus2.bpi"/>
<PATHCPP value=".;..\..\..\zlib"/>
<PATHPAS value=".;"/>
<PATHRC value=".;"/>
<PATHASM value=".;"/>
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30
projects/borland/zlib.cpp
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@ -1,30 +0,0 @@
//---------------------------------------------------------------------------
#include <windows.h>
//---------------------------------------------------------------------------
// Important note about DLL memory management when your DLL uses the
// static version of the RunTime Library:
//
// If your DLL exports any functions that pass String objects (or structs/
// classes containing nested Strings) as parameter or function results,
// you will need to add the library MEMMGR.LIB to both the DLL project and
// any other projects that use the DLL. You will also need to use MEMMGR.LIB
// if any other projects which use the DLL will be performing new or delete
// operations on any non-TObject-derived classes which are exported from the
// DLL. Adding MEMMGR.LIB to your project will change the DLL and its calling
// EXE's to use the BORLNDMM.DLL as their memory manager. In these cases,
// the file BORLNDMM.DLL should be deployed along with your DLL.
//
// To avoid using BORLNDMM.DLL, pass string information using "char *" or
// ShortString parameters.
//
// If your DLL uses the dynamic version of the RTL, you do not need to
// explicitly add MEMMGR.LIB as this will be done implicitly for you
//---------------------------------------------------------------------------
int WINAPI DllEntryPoint(HINSTANCE, unsigned long, void*)
{
return 1;
}
//---------------------------------------------------------------------------

20
projects/borland/zlibstat.bpf
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@ -1,20 +0,0 @@
USEUNIT("..\..\..\zlib\zutil.c");
USEUNIT("..\..\..\zlib\compress.c");
USEUNIT("..\..\..\zlib\crc32.c");
USEUNIT("..\..\..\zlib\deflate.c");
USEUNIT("..\..\..\zlib\gzio.c");
USEUNIT("..\..\..\zlib\infblock.c");
USEUNIT("..\..\..\zlib\infcodes.c");
USEUNIT("..\..\..\zlib\inffast.c");
USEUNIT("..\..\..\zlib\inflate.c");
USEUNIT("..\..\..\zlib\inftrees.c");
USEUNIT("..\..\..\zlib\infutil.c");
USEUNIT("..\..\..\zlib\trees.c");
USEUNIT("..\..\..\zlib\uncompr.c");
USEUNIT("..\..\..\zlib\adler32.c");
//---------------------------------------------------------------------------
#define Library
// To add a file to the library use the Project menu 'Add to Project'.

131
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@ -1,131 +0,0 @@
<?xml version='1.0' encoding='utf-8' ?>
<!-- C++Builder XML Project -->
<PROJECT>
<MACROS>
<VERSION value="BCB.05.03"/>
<PROJECT value="zlibstat.lib"/>
<OBJFILES value="..\..\..\zlib\zutil.obj ..\..\..\zlib\compress.obj ..\..\..\zlib\crc32.obj
..\..\..\zlib\deflate.obj ..\..\..\zlib\gzio.obj
..\..\..\zlib\infblock.obj ..\..\..\zlib\infcodes.obj
..\..\..\zlib\inffast.obj ..\..\..\zlib\inflate.obj
..\..\..\zlib\inftrees.obj ..\..\..\zlib\infutil.obj
..\..\..\zlib\trees.obj ..\..\..\zlib\uncompr.obj ..\..\..\zlib\adler32.obj"/>
<RESFILES value=""/>
<DEFFILE value=""/>
<RESDEPEN value="$(RESFILES)"/>
<LIBFILES value=""/>
<LIBRARIES value=""/>
<PACKAGES value=""/>
<PATHCPP value=".;..\..\..\zlib"/>
<PATHPAS value=".;"/>
<PATHRC value=".;"/>
<PATHASM value=".;"/>
<LINKER value="TLib"/>
<USERDEFINES value="Z_PREFIX"/>
<SYSDEFINES value="_RTLDLL;NO_STRICT"/>
<MAINSOURCE value="zlibstat.bpf"/>
<INCLUDEPATH value="..\..\..\zlib;$(BCB)\include"/>
<LIBPATH value="..\..\..\zlib;$(BCB)\lib\obj;$(BCB)\lib"/>
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6
projects/borland/libpng.bpf → projects/cbuilder5/libpng.bpf
View File

@ -1,5 +1,5 @@
USEUNIT("libpng.cpp");
USEUNIT("..\..\pngwutil.c");
USEUNIT("..\..\png.c");
USEUNIT("..\..\pngerror.c");
USEUNIT("..\..\pngget.c");
USEUNIT("..\..\pngmem.c");
@ -13,8 +13,8 @@ USEUNIT("..\..\pngtrans.c");
USEUNIT("..\..\pngwio.c");
USEUNIT("..\..\pngwrite.c");
USEUNIT("..\..\pngwtran.c");
USEUNIT("..\..\png.c");
USELIB("zlib.lib");
USEUNIT("..\..\pngwutil.c");
USELIB("..\..\..\zlib\zlib.lib");
//---------------------------------------------------------------------------
This file is used by the project manager only and should be treated like the project file

0
projects/borland/libpng.bpg → projects/cbuilder5/libpng.bpg
View File

4
projects/borland/libpng.bpr → projects/cbuilder5/libpng.bpr
View File

@ -11,7 +11,7 @@
<RESFILES value=""/>
<DEFFILE value=""/>
<RESDEPEN value="$(RESFILES)"/>
<LIBFILES value="zlib.lib"/>
<LIBFILES value="..\..\..\zlib\zlib.lib"/>
<LIBRARIES value="bcbsmp50.lib dclocx50.lib NMFast50.lib Tee50.lib Vclx50.lib Vcl50.lib"/>
<SPARELIBS value="Vcl50.lib Vclx50.lib Tee50.lib NMFast50.lib dclocx50.lib bcbsmp50.lib"/>
<PACKAGES value="Vcl50.bpi Vclx50.bpi bcbsmp50.bpi Qrpt50.bpi Vcldb50.bpi Vclbde50.bpi
@ -25,7 +25,7 @@
<DEBUGLIBPATH value="$(BCB)\lib\debug"/>
<RELEASELIBPATH value="$(BCB)\lib\release"/>
<LINKER value="tlink32"/>
<USERDEFINES value="ZLIB_DLL;Z_PREFIX;PNG_BUILD_DLL;PNG_NO_MODULEDEF"/>
<USERDEFINES value="PNG_BUILD_DLL;PNG_NO_MODULEDEF"/>
<SYSDEFINES value="NO_STRICT;_NO_VCL;_RTLDLL"/>
<MAINSOURCE value="libpng.bpf"/>
<INCLUDEPATH value="..\..;..\..\..\zlib;$(BCB)\include"/>

0
projects/borland/libpng.cpp → projects/cbuilder5/libpng.cpp
View File

25
projects/cbuilder5/libpng.readme.txt Normal file
View File

@ -0,0 +1,25 @@
Project files to build libpng using Borland C++ Builder v5.0
In order to build and use libpng, please follow these steps:
1). Install zlib in a directory at the same level with libpng.
2). In a console window, go to the zlib directory and type:
make -f win32\Makefile.bor
After performing this step, you should have a file named
zlib.lib in the zlib directory.
3). Add the following conditional define to your project:
PNG_USE_DLL
4). Add libpng.lib or libpngstat.lib to the project.
Build the project.
5). If the build fails, add the paths to png.h and zlib.h to
your include path, and restart the build.
By default, the libpng project uses zlib as a static library. If
you wish to use zlib as a DLL, please read the important notes from
the zlib DLL FAQ, found inside the zlib distribution.
See the libpng documentation for instructions on how to use the code.

8
projects/borland/libpngstat.bpf → projects/cbuilder5/libpngstat.bpf
View File

@ -1,7 +1,6 @@
USELIB("zlibstat.lib");
USEUNIT("..\..\pngerror.c");
USEUNIT("..\..\png.c");
USEUNIT("..\..\pngwutil.c");
USEUNIT("..\..\pngerror.c");
USEUNIT("..\..\pngget.c");
USEUNIT("..\..\pngmem.c");
USEUNIT("..\..\pngpread.c");
USEUNIT("..\..\pngread.c");
@ -13,7 +12,8 @@ USEUNIT("..\..\pngtrans.c");
USEUNIT("..\..\pngwio.c");
USEUNIT("..\..\pngwrite.c");
USEUNIT("..\..\pngwtran.c");
USEUNIT("..\..\pngget.c");
USEUNIT("..\..\pngwutil.c");
USELIB("..\..\..\zlib\zlib.lib");
//---------------------------------------------------------------------------
#define Library

2
projects/borland/libpngstat.bpr → projects/cbuilder5/libpngstat.bpr
View File

@ -11,7 +11,7 @@
<RESFILES value=""/>
<DEFFILE value=""/>
<RESDEPEN value="$(RESFILES)"/>
<LIBFILES value="zlibstat.lib"/>
<LIBFILES value="..\..\..\zlib\zlib.lib"/>
<LIBRARIES value=""/>
<PACKAGES value=""/>
<PATHCPP value=".;..\.."/>

14
projects/cbuilder5/zlib.readme.txt Normal file
View File

@ -0,0 +1,14 @@
The project that builds libpng under Borland C++ Builder does not
explicitly build zlib. By taking this decision, there is no need
to update the libpng project each time when there is a change in
the list of zlib source files. After all, this list is private to
zlib, and applications (such as libpng) should not assume anything
about it.
If you wish to contribute a project that builds zlib under Borland
C++ Builder, please submit it to the zlib developers, not to the
libpng developers.
By default, the libpng project uses zlib as a static library. If
you wish to use zlib as a DLL, please read the important notes from
the zlib DLL FAQ, found inside the zlib distribution.

47
projects/msvc/README.txt
View File

@ -1,47 +0,0 @@
Microsoft Developer Studio Build File, Format Version 6.00 for
libpng 1.0.15 (October 3, 2002) and zlib
Copyright (C) 2000 Simon-Pierre Cadieux
For conditions of distribution and use, see copyright notice in png.h
Assumes that libpng sources are in ..\..
Assumes that zlib sources have been copied to ..\..\..\zlib
To build:
1) On the main menu Select "Build|Set Active configuration".
Among the configurations beginning with "libpng" select the
one you wish to build (the corresponding "zlib" configuration
will be built automatically).
2) Select "Build|Clean"
3) Select "Build|Rebuild All"
4) Look in the appropriate "win32" subdirectories for both "zlib"
and "libpng" binaries.
This project will build the PNG Development Group's "official" versions of
libpng and zlib libraries:
libpng10.dll (default version, currently C code only)
libpng10.dll (C + Assembler version)
libpng10.dll (C + Assembler debug version)
libpng10.dll (C code debug version)
libpng10[c,e-m].dll (reserved for official versions)
libpng10[n-z].dll (available for private versions)
zlib.dll (default version, currently C code only)
zlibd.dll (debug version)
If you change anything in libpng, or select different compiler settings,
please change the library name to an unreserved name, and define
DLLFNAME_POSTFIX and (PRIVATEBUILD or SPECIALBUILD) accordingly. DLLFNAME_POSTFIX
should correspond to a string in the range of "N" to "Z" depending on the letter
you choose for your private version.
All DLLs built by this project use the Microsoft dynamic C runtime library
MSVCRT.DLL (MSVCRTD.DLL for debug versions). If you distribute any of the
above mentioned libraries you should also include this DLL in your package.
For a list of files that are redistributable in Visual C++ 6.0, see
Common\Redist\Redist.txt on Disc 1 of the Visual C++ 6.0 product CDs.

367
projects/msvc/libpng.dsp
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@ -1,367 +0,0 @@
# Microsoft Developer Studio Project File - Name="libpng" - Package Owner=<4>
# Microsoft Developer Studio Generated Build File, Format Version 6.00
# ** DO NOT EDIT **
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# TARGTYPE "Win32 (x86) Static Library" 0x0104
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!MESSAGE "libpng - Win32 DLL ASM" (based on "Win32 (x86) Dynamic-Link Library")
!MESSAGE "libpng - Win32 DLL Debug ASM" (based on "Win32 (x86) Dynamic-Link Library")
!MESSAGE "libpng - Win32 LIB" (based on "Win32 (x86) Static Library")
!MESSAGE "libpng - Win32 LIB Debug" (based on "Win32 (x86) Static Library")
!MESSAGE
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# PROP Target_Dir ""
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LINK32=link.exe
# ADD BASE LINK32 /nologo /dll /machine:I386
# ADD LINK32 /nologo /dll /machine:I386 /out:".\win32\libpng\dll\libpng10.dll"
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45
projects/msvc/zlib.def
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@ -1,45 +0,0 @@
LIBRARY
DESCRIPTION "zlib compression library for Windows"
EXPORTS
adler32 @1
compress @2
crc32 @3
deflate @4
deflateCopy @5
deflateEnd @6
deflateInit2_ @7
deflateInit_ @8
deflateParams @9
deflateReset @10
deflateSetDictionary @11
gzclose @12
gzdopen @13
gzerror @14
gzflush @15
gzopen @16
gzread @17
gzwrite @18
inflate @19
inflateEnd @20
inflateInit2_ @21
inflateInit_ @22
inflateReset @23
inflateSetDictionary @24
inflateSync @25
uncompress @26
zlibVersion @27
gzprintf @28
gzputc @29
gzgetc @30
gzseek @31
gzrewind @32
gztell @33
gzeof @34
gzsetparams @35
zError @36
inflateSyncPoint @37
get_crc_table @38
compress2 @39
gzputs @40
gzgets @41

400
projects/msvc/zlib.dsp
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@ -1,400 +0,0 @@
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64
projects/visualc6/README.txt Normal file
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@ -0,0 +1,64 @@
Microsoft Developer Studio Project File, Format Version 6.00 for libpng.
Copyright (C) 2000-2004 Simon-Pierre Cadieux.
Copyright (C) 2004 Cosmin Truta.
For conditions of distribution and use, see copyright notice in png.h
Assumptions:
* The libpng source files are in ..\..
* The zlib source files are in ..\..\..\zlib
* The zlib project files are in ..\..\..\zlib\projects\visualc6
To use:
1) On the main menu, select "File | Open Workspace".
Open "libpng.dsw".
2) Select "Build | Set Active Configuration".
Choose the configuration you wish to build.
(Choose libpng or pngtest; zlib will be built automatically.)
3) Select "Build | Clean".
4) Select "Build | Build ... (F7)". Ignore warning messages about
not being able to find certain include files (e.g. alloc.h).
5) If you built the sample program (pngtest),
select "Build | Execute ... (Ctrl+F5)".
This project builds the libpng binaries as follows:
* Win32_DLL_Release\libpng10.dll DLL build
* Win32_DLL_Debug\libpng10d.dll DLL build (debug version)
* Win32_DLL_ASM_Release\libpng10.dll DLL build using ASM code
* Win32_DLL_ASM_Debug\libpng10d.dll DLL build using ASM (debug version)
* Win32_DLL_VB\libpng10vb.dll DLL build for Visual Basic, using stdcall
* Win32_LIB_Release\libpng.lib static build
* Win32_LIB_Debug\libpngd.lib static build (debug version)
* Win32_LIB_ASM_Release\libpng.lib static build using ASM code
* Win32_LIB_ASM_Debug\libpngd.lib static build using ASM (debug version)
Notes:
If you change anything in the source files, or select different compiler
settings, please change the DLL name to something different than any of
the above names.
Also, make sure that DLLFNAME_POSTFIX and (PRIVATEBUILD or SPECIALBUILD)
are defined when compiling the resource file. DLLFNAME_POSTFIX contains
the trailing letters that come after the version number. PRIVATEBUILD
and/or SPECIALBUILD store information describing the type of change made
in the VERSIONINFO structure. Please refer to MSDN for more information
on the used macros and the nature of their content. For an example on
how to define these macros, look at the resource compiler settings for
the "Win32 DLL VB" configuration.
All DLLs built by this project use the Microsoft dynamic C runtime library
MSVCRT.DLL (MSVCRTD.DLL for debug versions). If you distribute any of the
above mentioned libraries you should also include this DLL in your package.
For a list of files that are redistributable in Visual C++ 6.0, see
Common\Redist\Redist.txt on Disc 1 of the Visual C++ 6.0 product CDs.

507
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19
projects/msvc/libpng.dsw → projects/visualc6/libpng.dsw
View File

@ -3,7 +3,7 @@ Microsoft Developer Studio Workspace File, Format Version 6.00
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{{{
@ -18,7 +18,22 @@ Package=<4>
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Package=<5>
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314
projects/visualc6/pngtest.dsp Normal file
View File

@ -0,0 +1,314 @@
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# End Special Build Tool
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# SUBTRACT CPP /YX
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# ADD LINK32 Win32_DLL_ASM_Release\libpng10.lib ..\..\..\zlib\projects\visualc6\Win32_DLL_ASM_Release\zlib1.lib /nologo /subsystem:console /machine:I386
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# End Special Build Tool
!ELSEIF "$(CFG)" == "pngtest - Win32 DLL ASM Debug"
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# End Special Build Tool
!ELSEIF "$(CFG)" == "pngtest - Win32 LIB Release"
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# ADD BASE CPP /nologo /W3 /O2 /D "WIN32" /D "NDEBUG" /FD /c
# SUBTRACT BASE CPP /YX
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# ADD RSC /l 0x409 /d "NDEBUG"
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# ADD BASE BSC32 /nologo
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# ADD BASE LINK32 /nologo /subsystem:console /machine:I386
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OutDir=.\Win32_LIB_Release
SOURCE="$(InputPath)"
PostBuild_Desc=[Run Test]
PostBuild_Cmds=$(outdir)\pngtest.exe ..\..\pngtest.png
# End Special Build Tool
!ELSEIF "$(CFG)" == "pngtest - Win32 LIB Debug"
# PROP BASE Use_MFC 0
# PROP BASE Use_Debug_Libraries 1
# PROP BASE Output_Dir "pngtest___Win32_LIB_Debug"
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# PROP Ignore_Export_Lib 0
# PROP Target_Dir ""
# ADD BASE CPP /nologo /W3 /Gm /ZI /Od /D "WIN32" /D "_DEBUG" /FD /GZ /c
# SUBTRACT BASE CPP /YX
# ADD CPP /nologo /MDd /W3 /Gm /ZI /Od /I "..\..\..\zlib" /D "WIN32" /D "_DEBUG" /FD /GZ /c
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# ADD RSC /l 0x409 /d "_DEBUG"
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# ADD BASE BSC32 /nologo
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# ADD BASE LINK32 /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
# ADD LINK32 Win32_LIB_Debug\libpngd.lib ..\..\..\zlib\projects\visualc6\Win32_LIB_Debug\zlibd.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
# Begin Special Build Tool
OutDir=.\Win32_LIB_Debug
SOURCE="$(InputPath)"
PostBuild_Desc=[Run Test]
PostBuild_Cmds=$(outdir)\pngtest.exe ..\..\pngtest.png
# End Special Build Tool
!ELSEIF "$(CFG)" == "pngtest - Win32 LIB ASM Release"
# PROP BASE Use_MFC 0
# PROP BASE Use_Debug_Libraries 0
# PROP BASE Output_Dir "pngtest___Win32_LIB_ASM_Release"
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# SUBTRACT BASE CPP /YX
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# SUBTRACT CPP /YX
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# ADD RSC /l 0x409 /d "NDEBUG"
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# ADD BASE BSC32 /nologo
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# Begin Special Build Tool
OutDir=.\Win32_LIB_ASM_Release
SOURCE="$(InputPath)"
PostBuild_Desc=[Run Test]
PostBuild_Cmds=$(outdir)\pngtest.exe ..\..\pngtest.png
# End Special Build Tool
!ELSEIF "$(CFG)" == "pngtest - Win32 LIB ASM Debug"
# PROP BASE Use_MFC 0
# PROP BASE Use_Debug_Libraries 1
# PROP BASE Output_Dir "pngtest___Win32_LIB_ASM_Debug"
# PROP BASE Intermediate_Dir "pngtest___Win32_LIB_ASM_Debug"
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# SUBTRACT BASE CPP /YX
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OutDir=.\Win32_LIB_ASM_Debug
SOURCE="$(InputPath)"
PostBuild_Desc=[Run Test]
PostBuild_Cmds=$(outdir)\pngtest.exe ..\..\pngtest.png
# End Special Build Tool
!ENDIF
# Begin Target
# Name "pngtest - Win32 DLL Release"
# Name "pngtest - Win32 DLL Debug"
# Name "pngtest - Win32 DLL ASM Release"
# Name "pngtest - Win32 DLL ASM Debug"
# Name "pngtest - Win32 LIB Release"
# Name "pngtest - Win32 LIB Debug"
# Name "pngtest - Win32 LIB ASM Release"
# Name "pngtest - Win32 LIB ASM Debug"
# Begin Group "Source Files"
# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
# Begin Source File
SOURCE=..\..\pngtest.c
# End Source File
# End Group
# End Target
# End Project

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

@ -8,7 +8,7 @@
# Modeled after libxml-config.
version=1.0.15
version=1.0.16
prefix=""
libdir=""
libs=""

2
scripts/libpng.pc.in
View File

@ -6,6 +6,6 @@ includedir=${exec_prefix}/include
Name: libpng10
Description: Loads and saves PNG files
Version: 1.0.15
Version: 1.0.16
Libs: -L${libdir} -lpng10 -lz -lm
Cflags: -I${includedir}/libpng10

9
scripts/makefile.32sunu
View File

@ -26,14 +26,14 @@ WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
CFLAGS=-I$(ZLIBINC) $(SUN_CC_FLAGS) \
# $(WARNMORE) -g -DPNG_DEBUG=5
LDFLAGS=-L. -R. $(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng10 -lz -lm
LDFLAGS=$(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB) libpng.a -lz -lm
#RANLIB=ranlib
RANLIB=echo
LIBNAME=libpng10
PNGMAJ = 0
PNGMIN = 1.0.15
PNGMIN = 1.0.16
PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include
@ -138,9 +138,10 @@ install-static: install-headers libpng.a
(cd $(DL); ln -f -s $(LIBNAME).a libpng.a)
install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
libpng.so.2
libpng.so.2.$(PNGMIN)
-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)
-@/bin/rm -f $(DL)/libpng.so
-@/bin/rm -f $(DL)/libpng.so.2
-@/bin/rm -f $(DL)/libpng.so.2.$(PNGVER)*
@ -177,7 +178,7 @@ install-config: libpng-config
-@/bin/rm -f $(DB)/libpng10-config
cp libpng-config $(DB)/libpng10-config
chmod 755 $(DB)/libpng10-config
(cd $(DB); ln -sf libpng10-config libpng-config)
(cd $(DB); ln -f -s libpng10-config libpng-config)
install: install-static install-shared install-man install-config

8
scripts/makefile.64sunu
View File

@ -33,7 +33,7 @@ RANLIB=echo
LIBNAME=libpng10
PNGMAJ = 0
PNGMIN = 1.0.15
PNGMIN = 1.0.16
PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include
@ -140,7 +140,9 @@ install-static: install-headers libpng.a
install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
libpng.so.2.$(PNGMIN)
-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ).$(PNGVER)* $(DL)/$(LIBNAME).so
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ).$(PNGVER)*
-@/bin/rm -f $(DL)/$(LIBNAME).so
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)
-@/bin/rm -f $(DL)/libpng.so
-@/bin/rm -f $(DL)/libpng.so.2
-@/bin/rm -f $(DL)/libpng.so.2.$(PNGVER)*
@ -177,7 +179,7 @@ install-config: libpng-config
-@/bin/rm -f $(DB)/$(LIBNAME)-config
cp libpng-config $(DB)/$(LIBNAME)-config
chmod 755 $(DB)/$(LIBNAME)-config
(cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
(cd $(DB); ln -f -s $(LIBNAME)-config libpng-config)
install: install-static install-shared install-man install-config

46
scripts/makefile.aix
View File

@ -16,8 +16,9 @@ AR = ar rcs
RANLIB = ranlib
RM = rm -f
LIBNAME=libpng10
PNGMAJ = 0
PNGMIN = 1.0.15
PNGMIN = 1.0.16
PNGVER = $(PNGMAJ).$(PNGMIN)
prefix=/usr/local
@ -34,15 +35,16 @@ LIBPATH=$(prefix)/lib
# you execute make install.
DESTDIR=
DI=$(DESTDIR)/$(INCPATH)
DL=$(DESTDIR)/$(LIBPATH)
DI=$(DESTDIR)$(INCPATH)
DL=$(DESTDIR)$(LIBPATH)
CDEBUG = -g -DPNG_DEBUG=5
LDDEBUG =
CRELEASE = -O2
LDRELEASE = -s
CFLAGS = -I$(ZLIBINC) -Wall $(CRELEASE)
LDFLAGS = -L. -L$(ZLIBLIB) -lpng -lz -lm $(LDRELEASE)
WARNMORE=-Wall
CFLAGS = -I$(ZLIBINC) $(WARNMORE) $(CRELEASE)
LDFLAGS = -L. -L$(ZLIBLIB) -lpng10 -lz -lm $(LDRELEASE)
# File extensions
O=.o
@ -55,32 +57,40 @@ OBJS = png$(O) pngerror$(O) pngget$(O) pngmem$(O) pngpread$(O) \
pngtrans$(O) pngwio$(O) pngwrite$(O) pngwtran$(O) pngwutil$(O)
# Targets
all: libpng$(A) pngtest$(E)
all: $(LIBNAME)$(A) pngtest$(E)
libpng$(A): $(OBJS)
$(LIBNAME)$(A): $(OBJS)
$(AR) $@ $(OBJS)
$(RANLIB) $@
test: pngtest$(E)
./pngtest$(E)
pngtest$(E): pngtest$(O) libpng$(A)
pngtest$(E): pngtest$(O) $(LIBNAME)$(A)
$(LD) -o $@ pngtest$(O) $(LDFLAGS)
install: libpng.a
install: $(LIBNAME)$(A)
-@if [ ! -d $(DI) ]; then mkdir $(DI); fi
-@if [ ! -d $(DI)/libpng ]; then mkdir $(DI)/libpng; fi
-@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-@rm $(DI)/png.h
-@rm $(DI)/pngconf.h
cp png.h pngconf.h $(DI)/libpng
chmod 644 $(DI)/libpng/png.h \
$(DI)/libpng/pngconf.h
(cd $(DI); ln -f -s libpng/* .)
cp libpng.a $(DL)
-@rm -f $(DI)/$(LIBNAME)/png.h
-@rm -f $(DI)/$(LIBNAME)/pngconf.h
-@rm -f $(DI)/png.h
-@rm -f $(DI)/pngconf.h
cp png.h pngconf.h $(DI)/$(LIBNAME)
chmod 644 $(DI)/$(LIBNAME)/png.h \
$(DI)/$(LIBNAME)/pngconf.h
-@rm -rf $(DI)/libpng
(cd $(DI); ln -f -s $(LIBNAME) libpng; ln -f -s $(LIBNAME)/* .)
-@rm -f $(DL)/$(LIBNAME)$(A)
-@rm -f $(DL)/libpng$(A)
cp $(LIBNAME)$(A) $(DL)/$(LIBNAME)$(A)
chmod 644 $(DL)/$(LIBNAME)$(A)
(cd $(DL); ln -f -s $(LIBNAME)$(A) libpng$(A))
(cd $(DI); ln -f -s libpng/* .;)
clean:
/bin/rm -f *.o libpng.a pngtest pngout.png
/bin/rm -f *.o $(LIBNAME)$(A) pngtest pngout.png
png$(O): png.h pngconf.h
pngerror$(O): png.h pngconf.h

76
scripts/makefile.bd32
View File

@ -1,76 +0,0 @@
# Makefile for png32bd.dll
# -------------------- 32-bit Borland C++ --------------------
# This makefile expects to find zlib.h and zlib32bd.lib in the
# $(ZLIBDIR) directory.
# The object files here are compiled with the "stdcall" calling convention.
# This DLL requires zlib32bd.lib to be compiled in the same way.
# Note that png32bd.dll exports the zlib functions adler32, crc32 and
# the deflate... and inflate... functions. It does not export the
# compress and uncompress functions, nor any of the gz... functions,
# since libpng does not call them.
.AUTODEPEND
ZLIBDIR=..\zlib
ZLIB=zlib32bd.lib
PNGDLL=png32bd.dll
PNGLIB=png32bd.lib
CC=bcc32
CFLAGS= -ps -O2 -N- -k- -d -r- -w-par -w-aus -I$(ZLIBDIR) \
-DPNG_NO_GLOBAL_ARRAYS #-DPNG_DEBUG=5
#LINK=tlink32
#LINK=ilink32
LINK=bcc32
#LINKFLAGS= -Tpd -aa -c
LINKFLAGS= -WDE
IMPLIB=implib
# Use this if you don't want Borland's fancy exception handling
NOEHLIB=noeh32.lib
.c.obj:
$(CC) -c $(CFLAGS) $<
.c.exe:
$(CC) $(CFLAGS) $< $(PNGLIB) $(NOEHLIB)
OBJ1=png.obj pngerror.obj pngget.obj pngmem.obj pngpread.obj
OBJ2=pngread.obj pngrio.obj pngrtran.obj pngrutil.obj pngset.obj
OBJ3=pngtrans.obj pngwio.obj pngwrite.obj pngwtran.obj pngwutil.obj
all: $(PNGDLL)
test: pngtest.exe
pngtest
$(PNGDLL): $(OBJ1) $(OBJ2) $(OBJ3) $(ZLIBDIR)\$(ZLIB)
$(LINK) @&&|
$(LINKFLAGS)
-e$(PNGDLL)
$(OBJ1)
$(OBJ2)
$(OBJ3)
$(ZLIBDIR)\$(ZLIB)
$(NOEHLIB)
|
$(IMPLIB) -c $(@R).lib $@
# Clean up anything else you want
clean:
-del *.obj
-del *.dll
-del *.exe
-del *.lib
-del *.lst
-del *.map
-del *.tds
# End of makefile for png32bd.dll

3
scripts/makefile.beos
View File

@ -12,7 +12,7 @@ ZLIBLIB=/usr/local/lib
ZLIBINC=/usr/local/include
PNGMAJ = 0
PNGMIN = 1.0.15
PNGMIN = 1.0.16
PNGVER = $(PNGMAJ).$(PNGMIN)
ALIGN=
@ -123,6 +123,7 @@ install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
libpng.so.2.$(PNGMIN)
-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)
-@/bin/rm -f $(DL)/libpng.so
-@/bin/rm -f $(DL)/libpng.so.2
-@/bin/rm -f $(DL)/libpng.so.2.$(PNGMIN)*

4
scripts/makefile.cygwin
View File

@ -78,8 +78,8 @@ CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \
LIBNAME = libpng10
PNGMAJ = 0
CYGDLL = 10
PNGMIN = 1.0.15
CYGDLL = 12
PNGMIN = 1.0.16
PNGVER = $(PNGMAJ).$(PNGMIN)
SHAREDLIB=cygpng$(CYGDLL).dll

39
scripts/makefile.darwin
View File

@ -1,5 +1,5 @@
# makefile for libpng on Darwin / Mac OS X
# Copyright (C) 2002 Glenn Randers-Pehrson
# Copyright (C) 2002,2004 Glenn Randers-Pehrson
# Copyright (C) 2001 Christoph Pfisterer
# derived from makefile.linux:
# Copyright (C) 1998, 1999 Greg Roelofs
@ -23,7 +23,7 @@ LDFLAGS=-L. -L$(ZLIBLIB) -lpng10 -lz
RANLIB=ranlib
PNGMAJ = 0
PNGMIN = 1.0.15
PNGMIN = 1.0.16
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng10
@ -85,18 +85,17 @@ $(LIBNAME).$(PNGMAJ).dylib: $(LIBNAME).$(PNGVER).dylib
$(LIBNAME).$(PNGVER).dylib: $(OBJSDLL)
$(CC) -dynamiclib \
-install_name $(DL)/$(LIBNAME).$(PNGMAJ).dylib \
-flat_namespace -undefined suppress \
-install_name $(LIBPATH)/$(LIBNAME).$(PNGMAJ).dylib \
-current_version $(PNGVER) -compatibility_version $(PNGVER) \
-o $(LIBNAME).$(PNGVER).dylib \
$(OBJSDLL)
$(OBJSDLL) -L$(ZLIBLIB) -lz
libpng.2.$(PNGMIN).dylib: $(OBJSDLL)
libpng.3.$(PNGMIN).dylib: $(OBJSDLL)
$(CC) -dynamiclib \
-install_name $(DL)/libpng.2.dylib \
-current_version 2 -compatibility_version 2 \
-flat_namespace -undefined suppress \
-o libpng.2.$(PNGMIN).dylib \
$(OBJSDLL)
-install_name $(LIBPATH)/libpng.3.dylib \
-current_version 3 -compatibility_version 3 \
-o libpng.3.$(PNGMIN).dylib \
$(OBJSDLL) -L$(ZLIBLIB) -lz
pngtest: pngtest.o $(LIBNAME).dylib
$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
@ -117,24 +116,26 @@ install-static: install-headers libpng.a
-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
cp libpng.a $(DL)/$(LIBNAME).a
chmod 644 $(DL)/$(LIBNAME).a
$(RANLIB) $(DL)/$(LIBNAME).a
-@/bin/rm -f $(DL)/libpng.a
(cd $(DL); ln -sf $(LIBNAME).a libpng.a)
install-shared: install-headers $(LIBNAME).dylib libpng.pc \
libpng.2.$(PNGMIN).dylib
libpng.3.$(PNGMIN).dylib
-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-@/bin/rm -f $(DL)/$(LIBNAME).$(PNGVER)*.dylib
-@/bin/rm -f $(DL)/$(LIBNAME).$(PNGMAJ)*.dylib
-@/bin/rm -f $(DL)/$(LIBNAME).dylib
-@/bin/rm -f $(DL)/libpng.dylib
-@/bin/rm -f $(DL)/libpng.2.dylib
-@/bin/rm -f $(DL)/libpng.2.$(PNGMIN)*.dylib
-@/bin/rm -f $(DL)/libpng.3.dylib
-@/bin/rm -f $(DL)/libpng.3.$(PNGMIN)*.dylib
cp $(LIBNAME).$(PNGVER).dylib $(DL)
cp libpng.2.$(PNGMIN).dylib $(DL)
cp libpng.3.$(PNGMIN).dylib $(DL)
chmod 755 $(DL)/$(LIBNAME).$(PNGVER).dylib
chmod 755 $(DL)/libpng.2.$(PNGMIN).dylib
chmod 755 $(DL)/libpng.3.$(PNGMIN).dylib
(cd $(DL); \
ln -sf libpng.2.$(PNGMIN).dylib libpng.2.dylib; \
ln -sf libpng.2.dylib libpng.dylib; \
ln -sf libpng.3.$(PNGMIN).dylib libpng.3.dylib; \
ln -sf libpng.3.dylib libpng.dylib; \
ln -sf $(LIBNAME).$(PNGVER).dylib $(LIBNAME).$(PNGMAJ).dylib; \
ln -sf $(LIBNAME).$(PNGMAJ).dylib $(LIBNAME).dylib)
-@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
@ -177,7 +178,7 @@ test-installed:
clean:
rm -f *.o libpng.a pngtest pngout.png libpng-config \
libpng.2.$(PNGMIN).dylib \
libpng.3.$(PNGMIN).dylib \
libpng.pc $(LIBNAME).*dylib pngtesti
DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO

9
scripts/makefile.dec
View File

@ -32,13 +32,13 @@ ZLIBLIB=../zlib
ZLIBINC=../zlib
PNGMAJ = 0
PNGMIN = 1.0.15
PNGMIN = 1.0.16
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng10
CC=cc
CFLAGS=-std -w1 -I$(ZLIBINC) -O # -g -DPNG_DEBUG=1
LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
LDFLAGS=-L$(ZLIBLIB) -rpath $(ZLIBLIB) libpng.a -lz -lm
#RANLIB=echo
RANLIB=ranlib
@ -73,11 +73,11 @@ $(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
ln -f -s $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
$(LIBNAME).so.$(PNGVER): $(OBJS)
$(CC) -shared -o $@ $(OBJS) -L$(ZLIBLIB)
$(CC) -shared -o $@ $(OBJS) -L$(ZLIBLIB) \
-soname $(LIBNAME).so.$(PNGMAJ)
libpng.so.2.$(PNGMIN): $(OBJS)
$(CC) -shared -o $@ $(OBJS) -L$(ZLIBLIB)
$(CC) -shared -o $@ $(OBJS) -L$(ZLIBLIB) \
-soname libpng.so.2
pngtest: pngtest.o libpng.a
@ -106,6 +106,7 @@ install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
libpng.so.2.$(PNGMIN)
-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)
-@/bin/rm -f $(DL)/libpng.so
-@/bin/rm -f $(DL)/libpng.so.2
-@/bin/rm -f $(DL)/libpng.so.2.$(PNGMIN)*

3
scripts/makefile.gcmmx
View File

@ -15,7 +15,7 @@
LIBNAME = libpng10
PNGMAJ = 0
PNGMIN = 1.0.15
PNGMIN = 1.0.16
PNGVER = $(PNGMAJ).$(PNGMIN)
CC=gcc
@ -170,6 +170,7 @@ install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
libpng.so.2.$(PNGMIN)
-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)
-@/bin/rm -f $(DL)/libpng.so
-@/bin/rm -f $(DL)/libpng.so.2
-@/bin/rm -f $(DL)/libpng.so.2.$(PNGMIN)*

23
scripts/makefile.hpgcc
View File

@ -41,7 +41,7 @@ RANLIB=ranlib
#RANLIB=echo
PNGMAJ = 0
PNGMIN = 1.0.15
PNGMIN = 1.0.16
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng10
@ -103,9 +103,9 @@ $(LIBNAME).sl.$(PNGVER): $(OBJSDLL)
$(LD) -b +s \
+h $(LIBNAME).sl.$(PNGMAJ) -o $(LIBNAME).sl.$(PNGVER) $(OBJSDLL)
libpng.sl.2.$(PNGMIN): $(OBJSDLL)
libpng.sl.3.$(PNGMIN): $(OBJSDLL)
$(LD) -b +s \
+h libpng.sl.2 -o libpng.sl.2.$(PNGMIN) $(OBJSDLL)
+h libpng.sl.3 -o libpng.sl.3.$(PNGMIN) $(OBJSDLL)
pngtest: pngtest.o $(LIBNAME).sl
$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
@ -131,19 +131,20 @@ install-static: install-headers libpng.a
(cd $(DL); ln -sf $(LIBNAME).a libpng.a)
install-shared: install-headers $(LIBNAME).sl.$(PNGVER) libpng.pc \
libpng.sl.2.$(PNGMIN)
libpng.sl.3.$(PNGMIN)
-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-@/bin/rm -f $(DL)/$(LIBNAME).sl.$(PNGVER)* $(DL)/$(LIBNAME).sl
-@/bin/rm -f $(DL)/$(LIBNAME).sl.$(PNGMAJ)
-@/bin/rm -f $(DL)/libpng.sl
-@/bin/rm -f $(DL)/libpng.sl.2
-@/bin/rm -f $(DL)/libpng.sl.2.$(PNGMIN)*
-@/bin/rm -f $(DL)/libpng.sl.3
-@/bin/rm -f $(DL)/libpng.sl.3.$(PNGMIN)*
cp $(LIBNAME).sl.$(PNGVER) $(DL)
cp libpng.sl.2.$(PNGMIN) $(DL)
cp libpng.sl.3.$(PNGMIN) $(DL)
chmod 755 $(DL)/$(LIBNAME).sl.$(PNGVER)
chmod 755 $(DL)/libpng.sl.2.$(PNGMIN)
chmod 755 $(DL)/libpng.sl.3.$(PNGMIN)
(cd $(DL); \
ln -sf libpng.sl.2.$(PNGMIN) libpng.sl.2; \
ln -sf libpng.sl.2 libpng.sl; \
ln -sf libpng.sl.3.$(PNGMIN) libpng.sl.3; \
ln -sf libpng.sl.3 libpng.sl; \
ln -sf $(LIBNAME).sl.$(PNGVER) $(LIBNAME).sl.$(PNGMAJ); \
ln -sf $(LIBNAME).sl.$(PNGMAJ) $(LIBNAME).sl)
-@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
@ -189,7 +190,7 @@ test-installed:
clean:
/bin/rm -f *.o libpng.a pngtest pngtesti pngout.png \
libpng-config $(LIBNAME).sl $(LIBNAME).sl.$(PNGMAJ)* \
libpng.sl.2.$(PNGMIN) \
libpng.sl.3.$(PNGMIN) \
libpng.pc
DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO

23
scripts/makefile.hpux
View File

@ -24,7 +24,7 @@ LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
RANLIB=ranlib
PNGMAJ = 0
PNGMIN = 1.0.15
PNGMIN = 1.0.16
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng10
@ -90,9 +90,9 @@ $(LIBNAME).sl.$(PNGVER): $(OBJSDLL)
$(LD) -b +s \
+h $(LIBNAME).sl.$(PNGMAJ) -o $(LIBNAME).sl.$(PNGVER) $(OBJSDLL)
libpng.sl.2.$(PNGMIN): $(OBJSDLL)
libpng.sl.3.$(PNGMIN): $(OBJSDLL)
$(LD) -b +s \
+h libpng.sl.2 -o libpng.sl.2.$(PNGMIN) $(OBJSDLL)
+h libpng.sl.3 -o libpng.sl.3.$(PNGMIN) $(OBJSDLL)
pngtest: pngtest.o libpng.a
$(CC) -o pngtest $(CCFLAGS) pngtest.o $(LDFLAGS)
@ -117,19 +117,20 @@ install-static: install-headers libpng.a
(cd $(DL); ln -sf $(LIBNAME).a libpng.a)
install-shared: install-headers $(LIBNAME).sl.$(PNGVER) libpng.pc \
libpng.sl.2.$(PNGMIN)
libpng.sl.3.$(PNGMIN)
-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-@/bin/rm -f $(DL)/$(LIBNAME).sl.$(PNGVER)* $(DL)/$(LIBNAME).sl
-@/bin/rm -f $(DL)/$(LIBNAME).sl.$(PNGMAJ)
-@/bin/rm -f $(DL)/libpng.sl
-@/bin/rm -f $(DL)/libpng.sl.2
-@/bin/rm -f $(DL)/libpng.sl.2.$(PNGMIN)*
-@/bin/rm -f $(DL)/libpng.sl.3
-@/bin/rm -f $(DL)/libpng.sl.3.$(PNGMIN)*
cp $(LIBNAME).sl.$(PNGVER) $(DL)
cp libpng.sl.2.$(PNGMIN) $(DL)
cp libpng.sl.3.$(PNGMIN) $(DL)
chmod 755 $(DL)/$(LIBNAME).sl.$(PNGVER)
chmod 755 $(DL)/libpng.sl.2.$(PNGMIN)
chmod 755 $(DL)/libpng.sl.3.$(PNGMIN)
(cd $(DL); \
ln -sf libpng.sl.2.$(PNGMIN) libpng.sl.2; \
ln -sf libpng.sl.2 libpng.sl; \
ln -sf libpng.sl.3.$(PNGMIN) libpng.sl.3; \
ln -sf libpng.sl.3 libpng.sl; \
ln -sf $(LIBNAME).sl.$(PNGVER) $(LIBNAME).sl.$(PNGMAJ); \
ln -sf $(LIBNAME).sl.$(PNGMAJ) $(LIBNAME).sl)
-@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
@ -175,7 +176,7 @@ test-installed:
clean:
/bin/rm -f *.o libpng.a pngtest pngtesti pngout.png \
libpng-config $(LIBNAME).sl $(LIBNAME).sl.$(PNGMAJ)* \
libpng.sl.2.$(PNGMIN) \
libpng.sl.3.$(PNGMIN) \
libpng.pc
DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO

3
scripts/makefile.linux
View File

@ -5,7 +5,7 @@
LIBNAME = libpng10
PNGMAJ = 0
PNGMIN = 1.0.15
PNGMIN = 1.0.16
PNGVER = $(PNGMAJ).$(PNGMIN)
CC=gcc
@ -142,6 +142,7 @@ install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
libpng.so.2.$(PNGMIN)
-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)
-@/bin/rm -f $(DL)/libpng.so
-@/bin/rm -f $(DL)/libpng.so.2
-@/bin/rm -f $(DL)/libpng.so.2.$(PNGMIN)*

197
scripts/makefile.macosx
View File

@ -1,197 +0,0 @@
# makefile for libpng, MACOS X
# Copyright (C) 2002 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
# Modified by Karin Kosina <kyrah@sim.no> 20011010:
# build shared library (*.dylib)
# For conditions of distribution and use, see copyright notice in png.h
# where make install puts libpng.a and png.h
prefix=/usr/local
# Where the zlib library and include files are located
#ZLIBLIB=/usr/local/lib
#ZLIBINC=/usr/local/include
ZLIBLIB=../zlib
ZLIBINC=../zlib
CC=cc
PNGMAJ = 0
PNGMIN = 1.0.15
PNGVER = $(PNGMAJ).$(PNGMIN)
CFLAGS=-fno-common -I$(ZLIBINC) -O # -g -DPNG_DEBUG=5
LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -current_version $(PNGVER)
LIBNAME=libpng10
SHAREDLIB_POSTFIX=dylib
INCPATH=$(prefix)/include
LIBPATH=$(prefix)/lib
MANPATH=$(prefix)/man
BINPATH=$(prefix)/bin
# override DESTDIR= on the make install command line to easily support
# installing into a temporary location. Example:
#
# make install DESTDIR=/tmp/build/libpng
#
# If you're going to install into a temporary location
# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
# you execute make install.
DESTDIR=
DB=$(DESTDIR)$(BINPATH)
DI=$(DESTDIR)$(INCPATH)
DL=$(DESTDIR)$(LIBPATH)
DM=$(DESTDIR)$(MANPATH)
#RANLIB=echo
RANLIB=ranlib
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
pngwtran.o pngmem.o pngerror.o pngpread.o
all: libpng.a pngtest shared libpng.pc libpng-config
shared: $(LIBNAME).$(PNGVER).$(SHAREDLIB_POSTFIX)
libpng.pc:
cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! | \
sed -e s/-lm// > libpng.pc
libpng-config:
( cat scripts/libpng-config-head.in; \
echo prefix=\"$(prefix)\"; \
echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
echo L_opts=\"-L$(LIBPATH)\"; \
echo libs=\"-lpng10 -lz\"; \
cat scripts/libpng-config-body.in ) > libpng-config
chmod +x libpng-config
libpng.a: $(OBJS)
ar rc $@ $(OBJS)
$(RANLIB) $@
$(LIBNAME).$(PNGVER).$(SHAREDLIB_POSTFIX): $(OBJS)
cc -dynamiclib -flat_namespace -undefined suppress -o $@ $(OBJS)
libpng.2.$(PNGMIN).$(SHAREDLIB_POSTFIX): $(OBJS)
cc -dynamiclib -compatibility_version 2 -flat_namespace \
-undefined suppress -o $@ $(OBJS)
pngtest: pngtest.o libpng.a
$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
test: pngtest
./pngtest
install-headers: png.h pngconf.h
-@if [ ! -d $(DI) ]; then mkdir $(DI); fi
-@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
cp png.h pngconf.h $(DI)/$(LIBNAME)
chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
-@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h
-@/bin/rm -f $(DI)/libpng
(cd $(DI); ln -f -s $(LIBNAME) libpng; ln -f -s $(LIBNAME)/* .)
install-static: install-headers libpng.a
-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
cp libpng.a $(DL)/$(LIBNAME).a
chmod 644 $(DL)/$(LIBNAME).a
-@/bin/rm -f $(DL)/libpng.a
(cd $(DL); ln -f -s $(LIBNAME).a libpng.a)
install-shared: install-headers $(LIBNAME).$(PNGVER).$(SHAREDLIB_POSTFIX) \
libpng.pc libpng.2.$(PNGMIN).$(SHAREDLIB_POSTFIX)
-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-@/bin/rm -f \
$(DL)/$(LIBNAME).$(PNGVER)*.$(SHAREDLIB_POSTFIX)
-@/bin/rm -f $(DL)/$(LIBNAME).$(SHAREDLIB_POSTFIX)
-@/bin/rm -f libpng.$(SHARED_POSTFIX)
-@/bin/rm -f libpng.2.$(SHARED_POSTFIX)
-@/bin/rm -f libpng.2.$(PNGMIN)*.$(SHARED_POSTFIX)
cp libpng.2.$(PNGMIN).$(SHAREDLIB_POSTFIX) $(DL)
cp $(LIBNAME).$(PNGVER).$(SHAREDLIB_POSTFIX) $(DL)
chmod 755 $(DL)/$(LIBNAME).$(PNGVER).$(SHAREDLIB_POSTFIX)
chmod 755 $(DL)/libpng.2.$(PNGMIN).$(SHAREDLIB_POSTFIX)
(cd $(DL); \
ln -f -s libpng.2.$(PNGMIN).$(SHARED_POSTFIX) \
libpng.2.$(SHARED_POSTFIX); \
ln -f -s libpng.2.$(SHARED_POSTFIX) libpng.$(SHARED_POSTFIX); \
ln -f -s $(LIBNAME).$(PNGVER).$(SHARED_POSTFIX) \
libpng.$(SHARED_POSTFIX); \
ln -f -s libpng.2.$(PNGMIN).$(SHARED_POSTFIX) \
libpng.2.$(SHARED_POSTFIX); \
ln -f -s $(LIBNAME).$(PNGVER).$(SHAREDLIB_POSTFIX) \
$(LIBNAME).$(PNGMAJ).$(SHAREDLIB_POSTFIX); \
ln -f -s $(LIBNAME).$(PNGMAJ).$(SHAREDLIB_POSTFIX) \
$(LIBNAME).$(SHAREDLIB_POSTFIX))
-@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
-@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
-@/bin/rm -f $(DL)/pkgconfig/libpng.pc
cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
(cd $(DL)/pkgconfig; ln -f -s $(LIBNAME).pc libpng.pc)
install-man: libpng.3 libpngpf.3 png.5
-@if [ ! -d $(DM) ]; then mkdir $(DM); fi
-@if [ ! -d $(DM)/man3 ]; then mkdir $(DM)/man3; fi
-@/bin/rm -f $(DM)/man3/libpng.3
-@/bin/rm -f $(DM)/man3/libpngpf.3
cp libpng.3 $(DM)/man3
cp libpngpf.3 $(DM)/man3
-@if [ ! -d $(DM)/man5 ]; then mkdir $(DM)/man5; fi
-@/bin/rm -f $(DM)/man5/png.5
cp png.5 $(DM)/man5
install-config: libpng-config
-@if [ ! -d $(DB) ]; then mkdir $(DB); fi
-@/bin/rm -f $(DB)/libpng-config
-@/bin/rm -f $(DB)/$(LIBNAME)-config
cp libpng-config $(DB)/$(LIBNAME)-config
chmod 755 $(DB)/$(LIBNAME)-config
(cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
install: install-static install-shared install-man install-config
# If you installed in $(DESTDIR), test-installed won't work until you
# move the library to its final location.
test-installed:
$(CC) $(CFLAGS) \
`$(BINPATH)/libpng10-config --cflags` pngtest.c \
-L$(ZLIBLIB) \
-o pngtesti `$(BINPATH)/libpng10-config --ldflags`
./pngtesti pngtest.png
clean:
rm -f *.o libpng.a pngtest pngout.png libpng-config \
$(LIBNAME).$(PNGVER).$(SHAREDLIB_POSTFIX) \
$(LIBNAME).$(SHAREDLIB_POSTFIX) \
libpng.2.$(PNGMIN).$(SHAREDLIB_POSTFIX) \
libpng.pc
DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
# DO NOT DELETE THIS LINE -- make depend depends on it.
png.o: png.h pngconf.h
pngerror.o: png.h pngconf.h
pngrio.o: png.h pngconf.h
pngwio.o: png.h pngconf.h
pngmem.o: png.h pngconf.h
pngset.o: png.h pngconf.h
pngget.o: png.h pngconf.h
pngread.o: png.h pngconf.h
pngrtran.o: png.h pngconf.h
pngrutil.o: png.h pngconf.h
pngtest.o: png.h pngconf.h
pngtrans.o: png.h pngconf.h
pngwrite.o: png.h pngconf.h
pngwtran.o: png.h pngconf.h
pngwutil.o: png.h pngconf.h
pngpread.o: png.h pngconf.h

4
scripts/makefile.ne10bsd → scripts/makefile.ne12bsd
View File

@ -11,9 +11,9 @@ LIBDIR= ${LOCALBASE}/lib
MANDIR= ${LOCALBASE}/man
INCSDIR=${LOCALBASE}/include/libpng10
LIB= png10
LIB= png12
SHLIB_MAJOR= 0
SHLIB_MINOR= 1.0.15
SHLIB_MINOR= 1.0.16
SRCS= pnggccrd.c png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
pngwtran.c pngmem.c pngerror.c pngpread.c

4
scripts/makefile.netbsd
View File

@ -12,8 +12,8 @@ MANDIR= ${LOCALBASE}/man
INCSDIR=${LOCALBASE}/include/libpng
LIB= png
SHLIB_MAJOR= 2
SHLIB_MINOR= 1.0.15
SHLIB_MAJOR= 3
SHLIB_MINOR= 1.0.16
SRCS= pnggccrd.c png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
pngwtran.c pngmem.c pngerror.c pngpread.c

2
scripts/makefile.openbsd
View File

@ -7,7 +7,7 @@ LIBDIR= ${PREFIX}/lib
MANDIR= ${PREFIX}/man/cat
SHLIB_MAJOR= 0
SHLIB_MINOR= 1.0.15
SHLIB_MINOR= 1.0.16
LIB= png
SRCS= png.c pngerror.c pnggccrd.c pngget.c pngmem.c pngpread.c \

5
scripts/makefile.sco
View File

@ -24,7 +24,7 @@ LDFLAGS=-L. -L$(ZLIBLIB) -lpng10 -lz -lm
RANLIB=echo
PNGMAJ = 0
PNGMIN = 1.0.15
PNGMIN = 1.0.16
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng10
@ -120,6 +120,7 @@ install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
libpng.so.2.$(PNGMIN)
-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)
-@/bin/rm -f $(DL)/libpng.so
-@/bin/rm -f $(DL)/libpng.so.2
-@/bin/rm -f $(DL)/libpng.so.2.$(PNGMIN)*
@ -156,7 +157,7 @@ install-config: libpng-config
-@/bin/rm -f $(DB)/$(LIBNAME)-config
cp libpng-config $(DB)/$(LIBNAME)-config
chmod 755 $(DB)/$(LIBNAME)-config
(cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
(cd $(DB); ln -f -s $(LIBNAME)-config libpng-config)
install: install-static install-shared install-man install-config

5
scripts/makefile.sggcc
View File

@ -18,7 +18,7 @@ ZLIBINC=../zlib
LIBNAME=libpng10
PNGMAJ = 0
PNGMIN = 1.0.15
PNGMIN = 1.0.16
PNGVER = $(PNGMAJ).$(PNGMIN)
CC=gcc
@ -32,7 +32,7 @@ LDFLAGS=$(ABI) -L. -L$(ZLIBLIB) -lpng -lz -lm
LDSHARED=cc $(ABI) -shared -soname $(LIBNAME).so.$(PNGMAJ) \
-set_version sgi$(PNGMAJ).0
LDLEGACY=cc $(ABI) -shared -soname libpng.so.2 \
-set_version sgi$2.0
-set_version sgi$3.0
# See "man dso" for info about shared objects
RANLIB=echo
@ -127,6 +127,7 @@ install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
libpng.so.2.$(PNGMIN)
-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)
-@/bin/rm -f $(DL)/libpng.so
-@/bin/rm -f $(DL)/libpng.so.2
-@/bin/rm -f $(DL)/libpng.so.2.$(PNGMIN)*

5
scripts/makefile.sgi
View File

@ -5,7 +5,7 @@
LIBNAME=libpng10
PNGMAJ = 0
PNGMIN = 1.0.15
PNGMIN = 1.0.16
PNGVER = $(PNGMAJ).$(PNGMIN)
# Where make install puts libpng.a, libpng10.so, and libpng10/png.h
@ -37,7 +37,7 @@ LDFLAGS=$(ABI) -L. -L$(ZLIBLIB) -lpng -lz -lm
LDSHARED=cc $(ABI) -shared -soname $(LIBNAME).so.$(PNGMAJ) \
-set_version sgi$(PNGMAJ).0
LDLEGACY=cc $(ABI) -shared -soname libpng.so.2 \
-set_version sgi$2.0
-set_version sgi$3.0
# See "man dso" for info about shared objects
RANLIB=echo
@ -133,6 +133,7 @@ install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
libpng.so.2.$(PNGMIN)
-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)
-@/bin/rm -f $(DL)/libpng.so
-@/bin/rm -f $(DL)/libpng.so.2
-@/bin/rm -f $(DL)/libpng.so.2.$(PNGMIN)*

5
scripts/makefile.so9
View File

@ -34,7 +34,7 @@ LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng10 -lz -lm
RANLIB=echo
PNGMAJ = 0
PNGMIN = 1.0.15
PNGMIN = 1.0.16
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng10
@ -140,6 +140,7 @@ install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
libpng.so.2.$(PNGMIN)
-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)
-@/bin/rm -f $(DL)/libpng.so
-@/bin/rm -f $(DL)/libpng.so.2
-@/bin/rm -f $(DL)/libpng.so.2.$(PNGMIN)*
@ -176,7 +177,7 @@ install-config: libpng-config
-@/bin/rm -f $(DB)/$(LIBNAME)-config
cp libpng-config $(DB)/$(LIBNAME)-config
chmod 755 $(DB)/$(LIBNAME)-config
(cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
(cd $(DB); ln -f -s $(LIBNAME)-config libpng-config)
install: install-static install-shared install-man install-config

9
scripts/makefile.solaris
View File

@ -1,5 +1,5 @@
# makefile for libpng on Solaris 2.x with gcc
# Copyright (C) 2002 Glenn Randers-Pehrson
# Copyright (C) 2004 Glenn Randers-Pehrson
# Contributed by William L. Sebok, based on makefile.linux
# Copyright (C) 1998 Greg Roelofs
# Copyright (C) 1996, 1997 Andreas Dilger
@ -22,7 +22,7 @@ ZLIBINC=/usr/local/include
WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
-Wmissing-declarations -Wtraditional -Wcast-align \
-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
CFLAGS=-I$(ZLIBINC) -Wall -O3 \
CFLAGS=-I$(ZLIBINC) -Wall -O \
# $(WARNMORE) -g -DPNG_DEBUG=5
LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng10 -lz -lm
@ -30,7 +30,7 @@ LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng10 -lz -lm
RANLIB=echo
PNGMAJ = 0
PNGMIN = 1.0.15
PNGMIN = 1.0.16
PNGVER = $(PNGMAJ).$(PNGMIN)
LIBNAME = libpng10
@ -137,6 +137,7 @@ install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
libpng.so.2.$(PNGMIN)
-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)
-@/bin/rm -f $(DL)/libpng.so
-@/bin/rm -f $(DL)/libpng.so.2
-@/bin/rm -f $(DL)/libpng.so.2.$(PNGMIN)*
@ -173,7 +174,7 @@ install-config: libpng-config
-@/bin/rm -f $(DB)/$(LIBNAME)-config
cp libpng-config $(DB)/$(LIBNAME)-config
chmod 755 $(DB)/$(LIBNAME)-config
(cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
(cd $(DB); ln -s -f $(LIBNAME)-config libpng-config)
install: install-static install-shared install-man install-config

53
scripts/makefile.vcawin32
View File

@ -5,27 +5,31 @@
# To use, do "nmake /f scripts\makefile.vcawin32"
# -------- Microsoft Visual C++ 5.0 and later, uses assembler code --------
# If you don't want to use assembler (MMX) code, use makefile.vcwin32 instead.
# Caution: the assembler code was introduced at libpng version 1.0.4 and has
# not yet been thoroughly tested.
# If you don't want to use assembler code, use makefile.vcwin32 instead.
CFLAGS=-DPNG_USE_PNGVCRD -Ox -GA3s -nologo -W3 -I..\zlib
# Compiler, linker, librarian, and other tools
CC = cl
LD = link
LDFLAGS=
AR = lib
CFLAGS = -DPNG_USE_PNGVCRD -nologo -MD -O2 -W3 -I..\zlib
LDFLAGS = -nologo
ARFLAGS = -nologo
RM = del
# File extensions
O=.obj
#uncomment next to put error messages in a file
#ERRFILE= >> pngerrs
#ERRFILE= >> pngerrs.log
# variables
OBJS1 = png$(O) pngset$(O) pngget$(O) pngrutil$(O) pngtrans$(O) pngwutil$(O)
OBJS2 = pngmem$(O) pngpread$(O) pngread$(O) pngerror$(O) pngwrite$(O)
OBJS3 = pngrtran$(O) pngwtran$(O) pngrio$(O) pngwio$(O) pngvcrd$(O)
# Variables
OBJS1 = png$(O) pngerror$(O) pngget$(O) pngmem$(O) pngpread$(O)
OBJS2 = pngread$(O) pngrio$(O) pngrtran$(O) pngrutil$(O) pngset$(O)
OBJS3 = pngtrans$(O) pngwio$(O) pngwrite$(O) pngwtran$(O) pngwutil$(O)
OBJS4 = pngvcrd$(O)
OBJS = $(OBJS1) $(OBJS2) $(OBJS3) $(OBJS4)
# Targets
all: libpng.lib
png$(O): png.h pngconf.h
@ -49,9 +53,6 @@ pngrtran$(O): png.h pngconf.h
pngrutil$(O): png.h pngconf.h
$(CC) -c $(CFLAGS) $*.c $(ERRFILE)
pngvcrd$(O): png.h pngconf.h
$(CC) -c $(CFLAGS) $*.c $(ERRFILE)
pngerror$(O): png.h pngconf.h
$(CC) -c $(CFLAGS) $*.c $(ERRFILE)
@ -79,16 +80,24 @@ pngwtran$(O): png.h pngconf.h
pngwutil$(O): png.h pngconf.h
$(CC) -c $(CFLAGS) $*.c $(ERRFILE)
libpng.lib: $(OBJS1) $(OBJS2) $(OBJS3)
echo something to del > libpng.lib
del libpng.lib
lib /OUT:libpng.lib $(OBJS1) $(OBJS2) $(OBJS3)
pngvcrd$(O): png.h pngconf.h
$(CC) -c $(CFLAGS) $*.c $(ERRFILE)
pngtest.exe: pngtest.obj libpng.lib
$(LD) $(LDFLAGS) pngtest.obj libpng.lib ..\zlib\zlib.lib /OUT:pngtest.exe /SUBSYSTEM:CONSOLE
libpng.lib: $(OBJS)
-$(RM) $@
$(AR) $(ARFLAGS) -out:$@ $(OBJS) $(ERRFILE)
pngtest.exe: pngtest$(O) libpng.lib
$(LD) $(LDFLAGS) -out:$@ pngtest$(O) libpng.lib ..\zlib\zlib.lib $(ERRFILE)
test: pngtest.exe
pngtest
clean:
-$(RM) *$(O)
-$(RM) libpng.lib
-$(RM) pngtest.exe
-$(RM) pngout.png
# End of makefile for libpng

44
scripts/makefile.vcwin32
View File

@ -4,24 +4,31 @@
# Assumes that zlib.lib, zconf.h, and zlib.h have been copied to ..\zlib
# To use, do "nmake /f scripts\makefile.vcwin32"
# -------- Microsoft Visual C++ 4.0 and later, no assembler code --------
# If you want to use assembler code, use makefile.vcawin32 instead.
CFLAGS= -Ox -GA3s -nologo -W3 -I..\zlib
# -------- Microsoft Visual C++ 2.0 and later, no assembler code --------
# If you want to use assembler (MMX) code, use makefile.vcawin32 instead.
# Compiler, linker, librarian, and other tools
CC = cl
LD = link
LDFLAGS=
AR = lib
CFLAGS = -nologo -MD -O2 -W3 -I..\zlib
LDFLAGS = -nologo
ARFLAGS = -nologo
RM = del
# File extensions
O=.obj
#uncomment next to put error messages in a file
#ERRFILE= >> pngerrs
#ERRFILE= >> pngerrs.log
# variables
OBJS1 = png$(O) pngset$(O) pngget$(O) pngrutil$(O) pngtrans$(O) pngwutil$(O)
OBJS2 = pngmem$(O) pngpread$(O) pngread$(O) pngerror$(O) pngwrite$(O)
OBJS3 = pngrtran$(O) pngwtran$(O) pngrio$(O) pngwio$(O)
# Variables
OBJS1 = png$(O) pngerror$(O) pngget$(O) pngmem$(O) pngpread$(O)
OBJS2 = pngread$(O) pngrio$(O) pngrtran$(O) pngrutil$(O) pngset$(O)
OBJS3 = pngtrans$(O) pngwio$(O) pngwrite$(O) pngwtran$(O) pngwutil$(O)
OBJS = $(OBJS1) $(OBJS2) $(OBJS3)
# Targets
all: libpng.lib
png$(O): png.h pngconf.h
@ -72,16 +79,21 @@ pngwtran$(O): png.h pngconf.h
pngwutil$(O): png.h pngconf.h
$(CC) -c $(CFLAGS) $*.c $(ERRFILE)
libpng.lib: $(OBJS1) $(OBJS2) $(OBJS3)
echo something to del > libpng.lib
del libpng.lib
lib /OUT:libpng.lib $(OBJS1) $(OBJS2) $(OBJS3)
libpng.lib: $(OBJS)
-$(RM) $@
$(AR) $(ARFLAGS) -out:$@ $(OBJS) $(ERRFILE)
pngtest.exe: pngtest.obj libpng.lib
$(LD) $(LDFLAGS) pngtest.obj libpng.lib ..\zlib\zlib.lib /OUT:pngtest.exe /SUBSYSTEM:CONSOLE
pngtest.exe: pngtest$(O) libpng.lib
$(LD) $(LDFLAGS) -out:$@ pngtest$(O) libpng.lib ..\zlib\zlib.lib $(ERRFILE)
test: pngtest.exe
pngtest
clean:
-$(RM) *$(O)
-$(RM) libpng.lib
-$(RM) pngtest.exe
-$(RM) pngout.png
# End of makefile for libpng

795
scripts/pngdef.pas
View File

@ -1,795 +0,0 @@
unit pngdef;
// Caution: this file has fallen out of date since version 1.0.5. Write to
// png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu about volunteering
// to it up to date.
interface
const
PNG_LIBPNG_VER_STRING = '1.0.15';
PNG_LIBPNG_VER = 10015;
type
png_uint_32 = Cardinal;
png_int_32 = Longint;
png_uint_16 = Word;
png_int_16 = Smallint;
png_byte = Byte;
png_size_t = png_uint_32;
png_charpp = ^png_charp;
png_charp = PChar;
float = single;
int = Integer;
png_bytepp = ^png_bytep;
png_bytep = ^png_byte;
png_uint_16p = ^png_uint_16;
png_uint_16pp = ^png_uint_16p;
png_voidp = pointer;
time_t = Longint;
png_doublep = ^png_double;
png_double = double;
user_error_ptr = Pointer;
png_error_ptrp = ^png_error_ptr;
png_error_ptr = procedure(png_ptr: Pointer; msg: Pointer);
stdcall;
png_rw_ptrp = ^png_rw_ptr;
png_rw_ptr = procedure(png_ptr: Pointer; data: Pointer;
length: png_size_t);
stdcall;
png_flush_ptrp = ^png_flush_ptr;
png_flush_ptr = procedure(png_ptr: Pointer);
stdcall;
png_progressive_info_ptrp = ^png_progressive_info_ptr;
png_progressive_info_ptr = procedure(png_ptr: Pointer;
info_ptr: Pointer);
stdcall;
png_progressive_end_ptrp = ^png_progressive_end_ptr;
png_progressive_end_ptr = procedure(png_ptr: Pointer;
info_ptr: Pointer);
stdcall;
png_progressive_row_ptrp = ^png_progressive_row_ptr;
png_progressive_row_ptr = procedure(png_ptr: Pointer;
data: Pointer; length: png_uint_32;
count: int);
stdcall;
png_read_status_ptr = procedure(png_ptr: Pointer;
row_number: png_uint_32; pass: int);
stdcall;
png_write_status_ptr = procedure(png_ptr: Pointer;
row_number: png_uint_32; pass: int);
stdcall;
png_user_chunk_ptr = procedure(png_ptr: Pointer;
data: png_unknown_chunkp);
stdcall;
png_user_transform_ptr = procedure(png_ptr: Pointer;
row_info: Pointer; data: png_bytep);
stdcall;
png_colorpp = ^png_colorp;
png_colorp = ^png_color;
png_color = packed record
red, green, blue: png_byte;
end;
png_color_16pp = ^png_color_16p;
png_color_16p = ^png_color_16;
png_color_16 = packed record
index: png_byte; //used for palette files
red, green, blue: png_uint_16; //for use in red green blue files
gray: png_uint_16; //for use in grayscale files
end;
png_color_8pp = ^png_color_8p;
png_color_8p = ^png_color_8;
png_color_8 = packed record
red, green, blue: png_byte; //for use in red green blue files
gray: png_byte; //for use in grayscale files
alpha: png_byte; //for alpha channel files
end;
png_textpp = ^png_textp;
png_textp = ^png_text;
png_text = packed record
compression: int; //compression value
key: png_charp; //keyword, 1-79 character description of "text"
text: png_charp; //comment, may be empty ("")
text_length: png_size_t; //length of text field
end;
png_timepp = ^png_timep;
png_timep = ^png_time;
png_time = packed record
year: png_uint_16; //yyyy
month: png_byte; //1..12
day: png_byte; //1..31
hour: png_byte; //0..23
minute: png_byte; //0..59
second: png_byte; //0..60 (leap seconds)
end;
png_infopp = ^png_infop;
png_infop = Pointer;
png_row_infopp = ^png_row_infop;
png_row_infop = ^png_row_info;
png_row_info = packed record
width: png_uint_32; //width of row
rowbytes: png_size_t; //number of bytes in row
color_type: png_byte; //color type of row
bit_depth: png_byte; //bit depth of row
channels: png_byte; //number of channels (1, 2, 3, or 4)
pixel_depth: png_byte; //bits per pixel (depth * channels)
end;
png_structpp = ^png_structp;
png_structp = Pointer;
const
// Supported compression types for text in PNG files (tEXt, and zTXt).
// The values of the PNG_TEXT_COMPRESSION_ defines should NOT be changed.
PNG_TEXT_COMPRESSION_NONE_WR = -3;
PNG_TEXT_COMPRESSION_zTXt_WR = -2;
PNG_TEXT_COMPRESSION_NONE = -1;
PNG_TEXT_COMPRESSION_zTXt = 0;
// These describe the color_type field in png_info.
// color type masks
PNG_COLOR_MASK_PALETTE = 1;
PNG_COLOR_MASK_COLOR = 2;
PNG_COLOR_MASK_ALPHA = 4;
// color types. Note that not all combinations are legal
PNG_COLOR_TYPE_GRAY = 0;
PNG_COLOR_TYPE_PALETTE = PNG_COLOR_MASK_COLOR or
PNG_COLOR_MASK_PALETTE;
PNG_COLOR_TYPE_RGB = PNG_COLOR_MASK_COLOR;
PNG_COLOR_TYPE_RGB_ALPHA = PNG_COLOR_MASK_COLOR or
PNG_COLOR_MASK_ALPHA;
PNG_COLOR_TYPE_GRAY_ALPHA = PNG_COLOR_MASK_ALPHA;
// This is for compression type. PNG 1.0 only defines the single type.
PNG_COMPRESSION_TYPE_BASE = 0; // Deflate method 8, 32K window
PNG_COMPRESSION_TYPE_DEFAULT = PNG_COMPRESSION_TYPE_BASE;
// This is for filter type. PNG 1.0 only defines the single type.
PNG_FILTER_TYPE_BASE = 0; // Single row per-byte filtering
PNG_FILTER_TYPE_DEFAULT = PNG_FILTER_TYPE_BASE;
// These are for the interlacing type. These values should NOT be changed.
PNG_INTERLACE_NONE = 0; // Non-interlaced image
PNG_INTERLACE_ADAM7 = 1; // Adam7 interlacing
// These are for the oFFs chunk. These values should NOT be changed.
PNG_OFFSET_PIXEL = 0; // Offset in pixels
PNG_OFFSET_MICROMETER = 1; // Offset in micrometers (1/10^6 meter)
// These are for the pCAL chunk. These values should NOT be changed.
PNG_EQUATION_LINEAR = 0; // Linear transformation
PNG_EQUATION_BASE_E = 1; // Exponential base e transform
PNG_EQUATION_ARBITRARY = 2; // Arbitrary base exponential transform
PNG_EQUATION_HYPERBOLIC = 3; // Hyperbolic sine transformation
// These are for the pHYs chunk. These values should NOT be changed.
PNG_RESOLUTION_UNKNOWN = 0; // pixels/unknown unit (aspect ratio)
PNG_RESOLUTION_METER = 1; // pixels/meter
// These are for the sRGB chunk. These values should NOT be changed.
PNG_sRGB_INTENT_PERCEPTUAL = 0;
PNG_sRGB_INTENT_RELATIVE = 1;
PNG_sRGB_INTENT_SATURATION = 2;
PNG_sRGB_INTENT_ABSOLUTE = 3;
// Handle alpha and tRNS by replacing with a background color.
PNG_BACKGROUND_GAMMA_UNKNOWN = 0;
PNG_BACKGROUND_GAMMA_SCREEN = 1;
PNG_BACKGROUND_GAMMA_FILE = 2;
PNG_BACKGROUND_GAMMA_UNIQUE = 3;
// Values for png_set_crc_action() to say how to handle CRC errors in
// ancillary and critical chunks, and whether to use the data contained
// therein. Note that it is impossible to "discard" data in a critical
// chunk. For versions prior to 0.90, the action was always error/quit,
// whereas in version 0.90 and later, the action for CRC errors in ancillary
// chunks is warn/discard. These values should NOT be changed.
// value action:critical action:ancillary
PNG_CRC_DEFAULT = 0; // error/quit warn/discard data
PNG_CRC_ERROR_QUIT = 1; // error/quit error/quit
PNG_CRC_WARN_DISCARD = 2; // (INVALID) warn/discard data
PNG_CRC_WARN_USE = 3; // warn/use data warn/use data
PNG_CRC_QUIET_USE = 4; // quiet/use data quiet/use data
PNG_CRC_NO_CHANGE = 5; // use current value use current value
// Flags for png_set_filter() to say which filters to use. The flags
// are chosen so that they don't conflict with real filter types
// below, in case they are supplied instead of the #defined constants.
// These values should NOT be changed.
PNG_NO_FILTERS = $00;
PNG_FILTER_NONE = $08;
PNG_FILTER_SUB = $10;
PNG_FILTER_UP = $20;
PNG_FILTER_AVG = $40;
PNG_FILTER_PAETH = $80;
PNG_ALL_FILTERS = PNG_FILTER_NONE or PNG_FILTER_SUB or
PNG_FILTER_UP or PNG_FILTER_AVG or
PNG_FILTER_PAETH;
// Filter values (not flags) - used in pngwrite.c, pngwutil.c for now.
// These defines should NOT be changed.
PNG_FILTER_VALUE_NONE = 0;
PNG_FILTER_VALUE_SUB = 1;
PNG_FILTER_VALUE_UP = 2;
PNG_FILTER_VALUE_AVG = 3;
PNG_FILTER_VALUE_PAETH = 4;
// Heuristic used for row filter selection. These defines should NOT be
// changed.
PNG_FILTER_HEURISTIC_DEFAULT = 0; // Currently "UNWEIGHTED"
PNG_FILTER_HEURISTIC_UNWEIGHTED = 1; // Used by libpng < 0.95
PNG_FILTER_HEURISTIC_WEIGHTED = 2; // Experimental feature
PNG_FILTER_HEURISTIC_LAST = 3; // Not a valid value
procedure png_build_grayscale_palette(bit_depth: int; palette: png_colorp);
stdcall;
function png_check_sig(sig: png_bytep; num: int): int;
stdcall;
procedure png_chunk_error(png_ptr: png_structp;
const mess: png_charp);
stdcall;
procedure png_chunk_warning(png_ptr: png_structp;
const mess: png_charp);
stdcall;
procedure png_convert_from_time_t(ptime: png_timep; ttime: time_t);
stdcall;
function png_convert_to_rfc1123(png_ptr: png_structp; ptime: png_timep):
png_charp;
stdcall;
function png_create_info_struct(png_ptr: png_structp): png_infop;
stdcall;
function png_create_read_struct(user_png_ver: png_charp;
error_ptr: user_error_ptr; error_fn: png_error_ptr;
warn_fn: png_error_ptr): png_structp;
stdcall;
function png_get_copyright(png_ptr: png_structp): png_charp;
stdcall;
function png_get_header_ver(png_ptr: png_structp): png_charp;
stdcall;
function png_get_header_version(png_ptr: png_structp): png_charp;
stdcall;
function png_get_libpng_ver(png_ptr: png_structp): png_charp;
stdcall;
function png_create_write_struct(user_png_ver: png_charp;
error_ptr: user_error_ptr; error_fn: png_error_ptr;
warn_fn: png_error_ptr): png_structp;
stdcall;
procedure png_destroy_info_struct(png_ptr: png_structp;
info_ptr_ptr: png_infopp);
stdcall;
procedure png_destroy_read_struct(png_ptr_ptr: png_structpp;
info_ptr_ptr, end_info_ptr_ptr: png_infopp);
stdcall;
procedure png_destroy_write_struct(png_ptr_ptr: png_structpp;
info_ptr_ptr: png_infopp);
stdcall;
function png_get_IHDR(png_ptr: png_structp; info_ptr: png_infop;
var width, height: png_uint_32; var bit_depth,
color_type, interlace_type, compression_type,
filter_type: int): png_uint_32;
stdcall;
function png_get_PLTE(png_ptr: png_structp; info_ptr: png_infop;
var palette: png_colorp; var num_palette: int):
png_uint_32;
stdcall;
function png_get_bKGD(png_ptr: png_structp; info_ptr: png_infop;
var background: png_color_16p): png_uint_32;
stdcall;
function png_get_bit_depth(png_ptr: png_structp; info_ptr: png_infop):
png_byte;
stdcall;
function png_get_cHRM(png_ptr: png_structp; info_ptr: png_infop;
var white_x, white_y, red_x, red_y, green_x, green_y,
blue_x, blue_y: double): png_uint_32;
stdcall;
function png_get_channels(png_ptr: png_structp; info_ptr: png_infop):
png_byte;
stdcall;
function png_get_color_type(png_ptr: png_structp; info_ptr: png_infop):
png_byte;
stdcall;
function png_get_compression_type(png_ptr: png_structp;
info_ptr: png_infop): png_byte;
stdcall;
function png_get_error_ptr(png_ptr: png_structp): png_voidp;
stdcall;
function png_get_filter_type(png_ptr: png_structp; info_ptr: png_infop):
png_byte;
stdcall;
function png_get_gAMA(png_ptr: png_structp; info_ptr: png_infop;
var file_gamma: double): png_uint_32;
stdcall;
function png_get_hIST(png_ptr: png_structp; info_ptr: png_infop;
var hist: png_uint_16p): png_uint_32;
stdcall;
function png_get_image_height(png_ptr: png_structp; info_ptr: png_infop):
png_uint_32;
stdcall;
function png_get_image_width(png_ptr: png_structp; info_ptr: png_infop):
png_uint_32;
stdcall;
function png_get_interlace_type(png_ptr: png_structp;
info_ptr: png_infop): png_byte;
stdcall;
function png_get_io_ptr(png_ptr: png_structp): png_voidp;
stdcall;
function png_get_oFFs(png_ptr: png_structp; info_ptr: png_infop;
var offset_x, offset_y: png_uint_32;
var unit_type: int): png_uint_32;
stdcall;
function png_get_sCAL(png_ptr: png_structp; info_ptr: png_infop;
var unit:int; var width: png_uint_32; height: png_uint_32):
png_uint_32;
stdcall
function png_get_pCAL(png_ptr: png_structp; info_ptr: png_infop;
var purpose: png_charp; var X0, X1: png_int_32;
var typ, nparams: int; var units: png_charp;
var params: png_charpp): png_uint_32;
stdcall;
function png_get_pHYs(png_ptr: png_structp; info_ptr: png_infop;
var res_x, res_y: png_uint_32; var unit_type: int):
png_uint_32;
stdcall;
function png_get_pixel_aspect_ratio(png_ptr: png_structp;
info_ptr: png_infop): float;
stdcall;
function png_get_pixels_per_meter(png_ptr: png_structp;
info_ptr: png_infop): png_uint_32;
stdcall;
function png_get_progressive_ptr(png_ptr: png_structp): png_voidp;
stdcall;
function png_get_rgb_to_gray_status(png_ptr: png_structp);
stdcall;
function png_get_rowbytes(png_ptr: png_structp; info_ptr: png_infop):
png_uint_32;
stdcall;
function png_get_rows(png_ptr: png_structp; info_ptr: png_infop):
png_bytepp;
stdcall;
function png_get_sBIT(png_ptr: png_structp; info_ptr: png_infop;
var sig_bits: png_color_8p): png_uint_32;
stdcall;
function png_get_sRGB(png_ptr: png_structp; info_ptr: png_infop;
var file_srgb_intent: int): png_uint_32;
stdcall;
function png_get_signature(png_ptr: png_structp; info_ptr: png_infop):
png_bytep;
stdcall;
function png_get_tIME(png_ptr: png_structp; info_ptr: png_infop;
var mod_time: png_timep): png_uint_32;
stdcall;
function png_get_tRNS(png_ptr: png_structp; info_ptr: png_infop;
var trans: png_bytep; var num_trans: int;
var trans_values: png_color_16p): png_uint_32;
stdcall;
function png_get_text(png_ptr: png_structp; info_ptr: png_infop;
var text_ptr: png_textp; var num_text: int):
png_uint_32;
stdcall;
function png_get_user_chunk_ptr(png_ptr: png_structp):
png_voidp;
stdcall;
function png_get_valid(png_ptr: png_structp; info_ptr: png_infop;
flag: png_uint_32): png_uint_32;
stdcall;
function png_get_x_offset_microns(png_ptr: png_structp;
info_ptr: png_infop): png_uint_32;
stdcall;
function png_get_x_offset_pixels(png_ptr: png_structp;
info_ptr: png_infop): png_uint_32;
stdcall;
function png_get_x_pixels_per_meter(png_ptr: png_structp;
info_ptr: png_infop): png_uint_32;
stdcall;
function png_get_y_offset_microns(png_ptr: png_structp;
info_ptr: png_infop): png_uint_32;
stdcall;
function png_get_y_offset_pixels(png_ptr: png_structp;
info_ptr: png_infop): png_uint_32;
stdcall;
function png_get_y_pixels_per_meter(png_ptr: png_structp;
info_ptr: png_infop): png_uint_32;
stdcall;
procedure png_process_data(png_ptr: png_structp; info_ptr: png_infop;
buffer: png_bytep; buffer_size: png_size_t);
stdcall;
procedure png_progressive_combine_row(png_ptr: png_structp;
old_row, new_row: png_bytep);
stdcall;
procedure png_read_end(png_ptr: png_structp; info_ptr: png_infop);
stdcall;
procedure png_read_image(png_ptr: png_structp; image: png_bytepp);
stdcall;
procedure png_read_info(png_ptr: png_structp; info_ptr: png_infop);
stdcall;
procedure png_read_row(png_ptr: png_structp; row, dsp_row: png_bytep);
stdcall;
procedure png_read_rows(png_ptr: png_structp; row, display_row:
png_bytepp; num_rows: png_uint_32);
stdcall;
procedure png_read_update_info(png_ptr: png_structp; info_ptr: png_infop);
stdcall;
procedure png_set_IHDR(png_ptr: png_structp; info_ptr: png_infop;
width, height: png_uint_32; bit_depth, color_type,
interlace_type, compression_type, filter_type: int);
stdcall;
procedure png_set_PLTE(png_ptr: png_structp; info_ptr: png_infop;
palette: png_colorp; num_palette: int);
stdcall;
procedure png_set_bKGD(png_ptr: png_structp; info_ptr: png_infop;
background: png_color_16p);
stdcall;
procedure png_set_background(png_ptr: png_structp;
background_color: png_color_16p;
background_gamma_code, need_expand: int;
background_gamma: double);
stdcall;
procedure png_set_bgr(png_ptr: png_structp);
stdcall;
procedure png_set_cHRM(png_ptr: png_structp; info_ptr: png_infop;
white_x, white_y, red_x, red_y, green_x, green_y,
blue_x, blue_y: double);
stdcall;
procedure png_set_cHRM_fixed(png_ptr: png_structp; info_ptr: png_infop;
white_x, white_y, red_x, red_y, green_x, green_y,
blue_x, blue_y: png_fixed_point);
stdcall;
procedure png_set_compression_level(png_ptr: png_structp; level: int);
stdcall;
procedure png_set_compression_mem_level(png_ptr: png_structp;
mem_level: int);
stdcall;
procedure png_set_compression_method(png_ptr: png_structp; method: int);
stdcall;
procedure png_set_compression_strategy(png_ptr: png_structp;
strategy: int);
stdcall;
procedure png_set_compression_window_bits(png_ptr: png_structp;
window_bits: int);
stdcall;
procedure png_set_crc_action(png_ptr: png_structp;
crit_action, ancil_action: int);
stdcall;
procedure png_set_dither(png_ptr: png_structp; plaette: png_colorp;
num_palette, maximum_colors: int;
histogram: png_uint_16p; full_dither: int);
stdcall;
procedure png_set_error_fn(png_ptr: png_structp; error_ptr: png_voidp;
error_fn, warning_fn: png_error_ptr);
stdcall;
procedure png_set_expand(png_ptr: png_structp);
stdcall;
procedure png_set_filler(png_ptr: png_structp; filler: png_uint_32;
filler_loc: int);
stdcall;
procedure png_set_filter(png_ptr: png_structp; method, filters: int);
stdcall;
procedure png_set_filter_heuristics(png_ptr: png_structp;
heuristic_method, num_weights: int;
filter_weights, filter_costs: png_doublep);
stdcall;
procedure png_set_flush(png_ptr: png_structp; nrows: int);
stdcall;
procedure png_set_gAMA(png_ptr: png_structp; info_ptr: png_infop;
file_gamma: double);
stdcall;
procedure png_set_gAMA_fixed(png_ptr: png_structp; info_ptr: png_infop;
file_gamma: png_fixed_point);
stdcall;
procedure png_set_gamma(png_ptr: png_structp; screen_gamma,
default_file_gamma: double);
stdcall;
procedure png_set_gray_1_2_4_to_8(png_ptr: png_structp);
stdcall;
procedure png_set_gray_to_rgb(png_ptr: png_structp);
stdcall;
procedure png_set_hIST(png_ptr: png_structp; info_ptr: png_infop;
hist: png_uint_16p);
stdcall;
function png_set_interlace_handling(png_ptr: png_structp): int;
stdcall;
procedure png_set_invalid(png_ptr: png_structp; info_ptr:png_infop;
mask: int);
stdcall;
procedure png_set_invert_alpha(png_ptr: png_structp);
stdcall;
procedure png_set_invert_mono(png_ptr: png_structp);
stdcall;
procedure png_set_oFFs(png_ptr: png_structp; info_ptr: png_infop;
offset_x, offset_y: png_uint_32; unit_type: int);
stdcall;
procedure png_set_palette_to_rgb(png_ptr: png_structp);
stdcall;
procedure png_set_pCAL(png_ptr: png_structp; info_ptr: png_infop;
purpose: png_charp; X0, X1: png_int_32;
typ, nparams: int; units: png_charp;
params: png_charpp);
stdcall;
procedure png_set_pHYs(png_ptr: png_structp; info_ptr: png_infop;
res_x, res_y: png_uint_32; unit_type: int);
stdcall;
procedure png_set_packing(png_ptr: png_structp);
stdcall;
procedure png_set_packswap(png_ptr: png_structp);
stdcall;
procedure png_set_progressive_read_fn(png_ptr: png_structp;
progressive_ptr: png_voidp;
info_fn: png_progressive_info_ptr;
row_fn: png_progressive_row_ptr;
end_fn: png_progressive_end_ptr);
stdcall;
procedure png_set_read_fn(png_ptr: png_structp;
io_ptr: png_voidp; read_data_fn: png_rw_ptr);
stdcall;
procedure png_set_read_status_fn(png_ptr: png_structp;
read_row_fn: png_read_status_ptr);
stdcall;
procedure png_set_read_user_chunk_fn(png_ptr: png_structp;
read_user_chunk_fn: png_user_chunk_ptr);
stdcall;
procedure png_set_read_user_transform_fn(png_ptr: png_structp;
read_user_transform_fn: png_user_transform_ptr);
stdcall;
procedure png_set_rgb_to_gray(png_ptr: png_structp; int: error_action;
red_weight, green_weight: double);
stdcall;
procedure png_set_rgb_to_gray_fixed(png_ptr: png_structp; int: error_action;
red_weight, green_weight: png_fixed_point);
stdcall;
procedure png_set_rows(png_ptr: png_structp; info_ptr: png_infop;
row_pointers: png_bytepp);
stdcall;
procedure png_set_sBIT(png_ptr: png_structp; info_ptr: png_infop;
sig_bits: png_color_8p);
stdcall;
procedure png_set_sRGB(png_ptr: png_structp; info_ptr: png_infop;
intent: int);
stdcall;
procedure png_set_sRGB_gAMA_and_cHRM(png_ptr: png_structp;
info_ptr: png_infop; intent: int);
stdcall;
procedure png_set_shift(png_ptr: png_structp; true_bits: png_color_8p);
stdcall;
procedure png_set_sig_bytes(png_ptr: png_structp; num_bytes: int);
stdcall;
procedure png_set_strip_16(png_ptr: png_structp);
stdcall;
procedure png_set_strip_alpha(png_ptr: png_structp);
stdcall;
procedure png_set_swap(png_ptr: png_structp);
stdcall;
procedure png_set_swap_alpha(png_ptr: png_structp);
stdcall;
procedure png_set_tIME(png_ptr: png_structp; info_ptr: png_infop;
mod_time: png_timep);
stdcall;
procedure png_set_tRNS(png_ptr: png_structp; info_ptr: png_infop;
trans: png_bytep; num_trans: int;
trans_values: png_color_16p);
stdcall;
procedure png_set_tRNS_to_alpha(png_ptr: png_structp);
stdcall;
procedure png_set_text(png_ptr: png_structp; info_ptr: png_infop;
text_ptr: png_textp; num_text: int);
stdcall;
procedure png_set_write_fn(png_ptr: png_structp;
io_ptr: png_voidp; write_data_fn: png_rw_ptr;
output_flush_fn: png_flush_ptr);
stdcall;
procedure png_set_write_status_fn(png_ptr: png_structp;
write_row_fn: png_write_status_ptr);
stdcall;
procedure png_set_write_user_transform_fn(png_ptr: png_structp;
write_user_transform_fn: png_user_transform_ptr);
stdcall;
function png_sig_cmp(sig: png_bytep; start, num_to_check: png_size_t):
int;
stdcall;
procedure png_start_read_image(png_ptr: png_structp);
stdcall;
procedure png_write_chunk(png_ptr: png_structp;
chunk_name, data: png_bytep; length: png_size_t);
stdcall;
procedure png_write_chunk_data(png_ptr: png_structp;
data: png_bytep; length: png_size_t);
stdcall;
procedure png_write_chunk_end(png_ptr: png_structp);
stdcall;
procedure png_write_chunk_start(png_ptr: png_structp;
chunk_name: png_bytep; length: png_uint_32);
stdcall;
procedure png_write_end(png_ptr: png_structp; info_ptr: png_infop);
stdcall;
procedure png_write_flush(png_ptr: png_structp);
stdcall;
procedure png_write_image(png_ptr: png_structp; image: png_bytepp);
stdcall;
procedure png_write_info(png_ptr: png_structp; info_ptr: png_infop);
stdcall;
procedure png_write_info_before_PLTE(png_ptr: png_structp; info_ptr: png_infop);
stdcall;
procedure png_write_row(png_ptr: png_structp; row: png_bytep);
stdcall;
procedure png_write_rows(png_ptr: png_structp; row: png_bytepp;
num_rows: png_uint_32);
stdcall;
procedure png_get_iCCP(png_ptr: png_structp; info_ptr: png_infop;
name: png_charpp; compression_type: int *; profile: png_charpp;
proflen: png_int_32): png_bytep;
stdcall;
procedure png_get_sPLT(png_ptr: png_structp;
info_ptr: png_infop; entries: png_spalette_pp): png_uint_32;
stdcall;
procedure png_set_iCCP(png_ptr: png_structp; info_ptr: png_infop;
name: png_charp; compression_type: int; profile: png_charp;
proflen: int);
stdcall;
procedure png_free_data(png_ptr: png_structp; info_ptr: png_infop; num: int);
stdcall;
procedure png_set_sPLT(png_ptr: png_structp; info_ptr: png_infop;
entries: png_spalette_p; nentries: int);
stdcall;
implementation
const
pngDLL = 'png32bd.dll';
procedure png_build_grayscale_palette; external pngDLL;
function png_check_sig; external pngDLL;
procedure png_chunk_error; external pngDLL;
procedure png_chunk_warning; external pngDLL;
procedure png_convert_from_time_t; external pngDLL;
function png_convert_to_rfc1123; external pngDLL;
function png_create_info_struct; external pngDLL;
function png_create_read_struct; external pngDLL;
function png_create_write_struct; external pngDLL;
procedure png_destroy_info_struct; external pngDLL;
procedure png_destroy_read_struct; external pngDLL;
procedure png_destroy_write_struct; external pngDLL;
function png_get_IHDR; external pngDLL;
function png_get_PLTE; external pngDLL;
function png_get_bKGD; external pngDLL;
function png_get_bit_depth; external pngDLL;
function png_get_cHRM; external pngDLL;
function png_get_channels; external pngDLL;
function png_get_color_type; external pngDLL;
function png_get_compression_type; external pngDLL;
function png_get_error_ptr; external pngDLL;
function png_get_filter_type; external pngDLL;
function png_get_gAMA; external pngDLL;
function png_get_hIST; external pngDLL;
function png_get_image_height; external pngDLL;
function png_get_image_width; external pngDLL;
function png_get_interlace_type; external pngDLL;
function png_get_io_ptr; external pngDLL;
function png_get_oFFs; external pngDLL;
function png_get_pCAL; external pngDLL;
function png_get_pHYs; external pngDLL;
function png_get_pixel_aspect_ratio; external pngDLL;
function png_get_pixels_per_meter; external pngDLL;
function png_get_progressive_ptr; external pngDLL;
function png_get_rowbytes; external pngDLL;
function png_get_rows; external pngDLL;
function png_get_sBIT; external pngDLL;
function png_get_sRGB; external pngDLL;
function png_get_signature; external pngDLL;
function png_get_tIME; external pngDLL;
function png_get_tRNS; external pngDLL;
function png_get_text; external pngDLL;
function png_get_user_chunk_ptr; external pngDLL;
function png_get_valid; external pngDLL;
function png_get_x_offset_microns; external pngDLL;
function png_get_x_offset_pixels; external pngDLL;
function png_get_x_pixels_per_meter; external pngDLL;
function png_get_y_offset_microns; external pngDLL;
function png_get_y_offset_pixels; external pngDLL;
function png_get_y_pixels_per_meter; external pngDLL;
procedure png_process_data; external pngDLL;
procedure png_progressive_combine_row; external pngDLL;
procedure png_read_end; external pngDLL;
procedure png_read_image; external pngDLL;
procedure png_read_info; external pngDLL;
procedure png_read_row; external pngDLL;
procedure png_read_rows; external pngDLL;
procedure png_read_update_info; external pngDLL;
procedure png_set_IHDR; external pngDLL;
procedure png_set_PLTE; external pngDLL;
procedure png_set_bKGD; external pngDLL;
procedure png_set_background; external pngDLL;
procedure png_set_bgr; external pngDLL;
procedure png_set_cHRM; external pngDLL;
procedure png_set_cHRM_fixed; external pngDLL;
procedure png_set_compression_level; external pngDLL;
procedure png_set_compression_mem_level; external pngDLL;
procedure png_set_compression_method; external pngDLL;
procedure png_set_compression_strategy; external pngDLL;
procedure png_set_compression_window_bits; external pngDLL;
procedure png_set_crc_action; external pngDLL;
procedure png_set_dither; external pngDLL;
procedure png_set_error_fn; external pngDLL;
procedure png_set_expand; external pngDLL;
procedure png_set_filler; external pngDLL;
procedure png_set_filter; external pngDLL;
procedure png_set_filter_heuristics; external pngDLL;
procedure png_set_flush; external pngDLL;
procedure png_set_gAMA; external pngDLL;
procedure png_set_gAMA_fixed; external pngDLL;
procedure png_set_gamma; external pngDLL;
procedure png_set_gray_to_rgb; external pngDLL;
procedure png_set_hIST; external pngDLL;
function png_set_interlace_handling; external pngDLL;
procedure png_set_invert_alpha; external pngDLL;
procedure png_set_invert_mono; external pngDLL;
procedure png_set_oFFs; external pngDLL;
procedure png_set_pCAL; external pngDLL;
procedure png_set_pHYs; external pngDLL;
procedure png_set_packing; external pngDLL;
procedure png_set_packswap; external pngDLL;
procedure png_set_progressive_read_fn; external pngDLL;
procedure png_set_read_fn; external pngDLL;
procedure png_set_read_status_fn; external pngDLL;
procedure png_set_read_user_transform_fn; external pngDLL;
procedure png_set_rgb_to_gray; external pngDLL;
procedure png_set_rgb_to_gray_fixed; external pngDLL;
procedure png_set_rows; external pngDLL;
procedure png_set_sBIT; external pngDLL;
procedure png_set_sRGB; external pngDLL;
procedure png_set_sRGB_gAMA_and_cHRM; external pngDLL;
procedure png_set_shift; external pngDLL;
procedure png_set_sig_bytes; external pngDLL;
procedure png_set_strip_16; external pngDLL;
procedure png_set_strip_alpha; external pngDLL;
procedure png_set_swap; external pngDLL;
procedure png_set_swap_alpha; external pngDLL;
procedure png_set_tIME; external pngDLL;
procedure png_set_tRNS; external pngDLL;
procedure png_set_text; external pngDLL;
procedure png_set_user_chunk_fn; external pngDLL;
procedure png_set_write_fn; external pngDLL;
procedure png_set_write_status_fn; external pngDLL;
procedure png_set_write_user_transform_fn; external pngDLL;
function png_sig_cmp; external pngDLL;
procedure png_start_read_image; external pngDLL;
procedure png_write_chunk; external pngDLL;
procedure png_write_chunk_data; external pngDLL;
procedure png_write_chunk_end; external pngDLL;
procedure png_write_chunk_start; external pngDLL;
procedure png_write_end; external pngDLL;
procedure png_write_flush; external pngDLL;
procedure png_write_image; external pngDLL;
procedure png_write_info; external pngDLL;
procedure png_write_info_before_PLTE; external pngDLL;
procedure png_write_row; external pngDLL;
procedure png_write_rows; external pngDLL;
procedure png_get_iCCP; external pngDLL;
procedure png_get_sPLT; external pngDLL;
procedure png_set_iCCP; external pngDLL;
procedure png_set_sPLT; external pngDLL;
procedure png_free_data; external pngDLL;
end.

7
scripts/pngos2.def
View File

@ -2,7 +2,7 @@
; PNG.LIB module definition file for OS/2
;----------------------------------------
; Version 1.0.15
; Version 1.0.16
LIBRARY PNG
DESCRIPTION "PNG image compression library for OS/2"
@ -206,6 +206,11 @@ EXPORTS
; Added at version 1.2.4
png_malloc_warn
; Added at version 1.2.6
png_set_user_limits
png_get_user_height_max
png_get_user_width_max
; These are not present when libpng is compiled with PNG_NO_GLOBAL_ARRAYS
png_libpng_ver
png_pass_start

45
projects/msvc/png32ms.def → scripts/pngw32.def
View File

@ -6,7 +6,7 @@ LIBRARY
DESCRIPTION "PNG image compression library for Windows"
EXPORTS
;Version 1.0.15
;Version 1.0.16
png_build_grayscale_palette @1
png_check_sig @2
png_chunk_error @3
@ -193,28 +193,33 @@ EXPORTS
png_destroy_struct @178
; Added at version 1.2.0
; For use with PNG_USER_MEM_SUPPORTED
; png_destroy_struct_2 @179
; png_create_read_struct_2 @180
; png_create_write_struct_2 @181
; png_malloc_default @182
; png_free_default @183
png_destroy_struct_2 @179
png_create_read_struct_2 @180
png_create_write_struct_2 @181
png_malloc_default @182
png_free_default @183
; MNG features
; png_permit_mng_features @184
png_permit_mng_features @184
; MMX support
; png_mmx_support @185
; png_get_mmx_flagmask @186
; png_get_asm_flagmask @187
; png_get_asm_flags @188
; png_get_mmx_bitdepth_threshold @189
; png_get_mmx_rowbytes_threshold @190
; png_set_asm_flags @191
; png_init_mmx_flags @192
png_mmx_support @185
png_get_mmx_flagmask @186
png_get_asm_flagmask @187
png_get_asm_flags @188
png_get_mmx_bitdepth_threshold @189
png_get_mmx_rowbytes_threshold @190
png_set_asm_flags @191
png_init_mmx_flags @192
; Strip error numbers
; png_set_strip_error_numbers @193
png_set_strip_error_numbers @193
; Added at version 1.2.2
png_handle_as_unknown @179
png_zalloc @180
png_zfree @181
; png_handle_as_unknown @194
png_handle_as_unknown @194
; Added at version 1.2.2 and deleted from 1.2.3
; png_zalloc @195
; png_zfree @196
; Added at version 1.2.4
png_malloc_warn @195
; Added at version 1.2.6
png_malloc_warn @195
png_get_user_height_max @196
png_get_user_width_max @197
png_set_user_limits @198

15
projects/msvc/png.rc → scripts/pngw32.rc
View File

@ -1,7 +1,7 @@
#define PNG_VERSION_INFO_ONLY
#include <windows.h>
#include "png.h"
#include "../png.h"
#define _QUOTE(x) # x
#define QUOTE(x) _QUOTE(x)
@ -12,12 +12,7 @@
# error PRIVATEBUILD or SPECIALBUILD must be defined as a string describing the type of change brought to the standard library
#endif /* defined(DLLFNAME_POSTFIX)... */
#if !defined(DLLFNAME_POSTFIX) && defined(PNG_USE_PNGVCRD)
# if defined(PNG_DEBUG) && (PNG_DEBUG > 0)
# define DLLFNAME_POSTFIX "B"
# else
# define DLLFNAME_POSTFIX "A"
# endif /* !defined(DLLFNAME_POSTFIX)... */
#if defined(PNG_USE_PNGVCRD)
# if !defined(SPECIALBUILD)
# define SPECIALBUILD "Use MMX instructions"
# endif /* SPECIALBUILD */
@ -80,9 +75,9 @@ BEGIN
#endif /* COMMENTS */
VALUE "FileDescription", "PNG image compression library\000"
VALUE "FileVersion", PNG_LIBPNG_VER_STRING "\000"
VALUE "InternalName", PNG_LIBPNG_DLLFNAME QUOTE(PNG_LIBPNG_VER_MAJOR) DLLFNAME_POSTFIX " (Windows 32 bit)\000"
VALUE "LegalCopyright", "\251 1998-2002 Glenn Randers-Pehrson\000"
VALUE "OriginalFilename", PNG_LIBPNG_DLLFNAME QUOTE(PNG_LIBPNG_VER_MAJOR) DLLFNAME_POSTFIX ".DLL\000"
VALUE "InternalName", PNG_LIBPNG_DLLFNAME QUOTE(PNG_LIBPNG_VER_DLLNUM) DLLFNAME_POSTFIX " (Windows 32 bit)\000"
VALUE "LegalCopyright", "\251 1998-2004 Glenn Randers-Pehrson et al.\000"
VALUE "OriginalFilename", PNG_LIBPNG_DLLFNAME QUOTE(PNG_LIBPNG_VER_DLLNUM) DLLFNAME_POSTFIX ".DLL\000"
#ifdef PRIVATEBUILD
VALUE "PrivateBuild", PRIVATEBUILD
#endif /* PRIVATEBUILD */