diff options
| author | Glenn Randers-Pehrson <glennrp at users.sourceforge.net> | 2004-08-28 23:30:07 -0500 |
|---|---|---|
| committer | Glenn Randers-Pehrson <glennrp at users.sourceforge.net> | 2009-04-06 16:07:56 -0500 |
| commit | 67864af95750ea874dfdf2995ab25d677d0a0d6e (patch) | |
| tree | bee582ccde36bd3eb830b75baca537244eb46e4e | |
| parent | a4981d4dedba8d03fae845286d411237bd5adc04 (diff) | |
| download | libpng-1.2.7beta2.tar.gz | |
Imported from libpng-1.2.7beta2.tarv1.2.7beta2
56 files changed, 356 insertions, 251 deletions
@@ -1,5 +1,5 @@ -Libpng 1.2.7beta1 - August 26, 2004 +Libpng 1.2.7beta2 - August 29, 2004 This is not intended to be a public release. It will be replaced within a few weeks by a public version or by another test version. @@ -14,8 +14,14 @@ version 1.2.7beta1 [August 26, 2004] PNG Spec (second edition) and the PNG ISO/IEC Standard. Added "test-dd" target in 15 makefiles, to run pngtest in DESTDIR. Fixed bug with "optimized window size" in the IDAT datastream. +version 1.2.7beta1 [August 29, 2004] + Fixed bug with sCAL chunk and big-endian machines (David Munro). + Undid new code added in 1.2.6rc2 to update the color_type in + png_set_filler(). + Added png_set_add_alpha() that updates color type. Send comments/corrections/commendations to -png-implement@ccrc.wustl.edu or to glennrp@users.sourceforge.net +png-implement@ccrc.wustl.edu (subscription required; write to +majordomo@ccrc.wustl.edu) or to glennrp@users.sourceforge.net Glenn R-P @@ -1316,6 +1316,7 @@ version 1.0.16rc1 and 1.2.6rc1 [August 4, 2004] 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, + Revised libpng.txt to remove 1.2.x stuff from the 1.0.x distribution version 1.0.16rc2 and 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 @@ -1352,8 +1353,14 @@ version 1.2.7beta1 [August 26, 2004] PNG Spec (second edition) and the PNG ISO/IEC Standard. Added "test-dd" target in 15 makefiles, to run pngtest in DESTDIR. Fixed bug with "optimized window size" in the IDAT datastream. +version 1.2.7beta2 [August 29, 2004] + Fixed bug with sCAL chunk and big-endian machines (David Munro). + Undid new code added in 1.2.6rc2 to update the color_type in + png_set_filler(). + Added png_set_add_alpha() that updates color type. Send comments/corrections/commendations to -png-implement@ccrc.wustl.edu or to glennrp@users.sourceforge.net +png-implement@ccrc.wustl.edu (subscription required; write to +majordomo@ccrc.wustl.edu) or to glennrp@users.sourceforge.net Glenn R-P @@ -1,5 +1,5 @@ -Installing libpng version 1.2.7beta1 - August 26, 2004 +Installing libpng version 1.2.7beta2 - August 29, 2004 Before installing libpng, you must first install zlib. zlib can usually be found wherever you got libpng. zlib can be @@ -10,7 +10,7 @@ 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-1.2.7beta1" or "lpng109" and "zlib-1.2.1" +might be called "libpng-1.2.7beta2" or "lpng109" and "zlib-1.2.1" or "zlib121") so that you have directories called "zlib" and "libpng". Your directory structure should look like this: @@ -67,9 +67,9 @@ include makefile.std => Generic UNIX makefile (cc, creates static libpng.a) makefile.linux => Linux/ELF makefile - (gcc, creates libpng12.so.0.1.2.7beta1) + (gcc, creates libpng12.so.0.1.2.7beta2) makefile.gcmmx => Linux/ELF makefile - (gcc, creates libpng12.so.0.1.2.7beta1, + (gcc, creates libpng12.so.0.1.2.7beta2, 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 @@ -91,12 +91,12 @@ include makefile.openbsd => OpenBSD makefile makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib) makefile.sggcc => Silicon Graphics (gcc, - creates libpng12.so.0.1.2.7beta1) + creates libpng12.so.0.1.2.7beta2) makefile.sunos => Sun makefile makefile.solaris => Solaris 2.X makefile (gcc, - creates libpng12.so.0.1.2.7beta1) + creates libpng12.so.0.1.2.7beta2) makefile.so9 => Solaris 9 makefile (gcc, - creates libpng12.so.0.1.2.7beta1) + creates libpng12.so.0.1.2.7beta2) 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 @@ -1,5 +1,5 @@ -Known bugs in libpng version 1.2.7beta1 +Known bugs in libpng version 1.2.7beta2 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 @@ -8,7 +8,7 @@ COPYRIGHT NOTICE, DISCLAIMER, and LICENSE: If you modify libpng you may insert additional notices immediately following this sentence. -libpng version 1.2.6, August 26, 2004, is +libpng version 1.2.6, August 29, 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 @@ -106,4 +106,4 @@ certification mark of the Open Source Initiative. Glenn Randers-Pehrson glennrp@users.sourceforge.net -August 26, 2004 +August 29, 2004 @@ -1,4 +1,4 @@ -README for libpng version 1.2.7beta1 - August 26, 2004 (shared library 12.0) +README for libpng version 1.2.7beta2 - August 29, 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. @@ -104,7 +104,8 @@ 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. glennrp@users.sourceforge.net -png-implement@ccrc.wustl.edu +png-implement@ccrc.wustl.edu (subscription required; write to +majordomo@ccrc.wustl.edu) You can't reach Guy, the original libpng author, at the addresses given in previous versions of this document. He and Andreas will read mail @@ -186,9 +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 libpng12.so.0.1.2.7beta1) + (gcc, creates libpng12.so.0.1.2.7beta2) makefile.gcmmx => Linux/ELF makefile - (gcc, creates libpng12.so.0.1.2.7beta1, + (gcc, creates libpng12.so.0.1.2.7beta2, 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 @@ -209,12 +210,12 @@ Files in this distribution: makefile.openbsd => OpenBSD makefile makefile.sgi => Silicon Graphics IRIX (cc, creates static lib) makefile.sggcc => Silicon Graphics - (gcc, creates libpng12.so.0.1.2.7beta1) + (gcc, creates libpng12.so.0.1.2.7beta2) makefile.sunos => Sun makefile makefile.solaris => Solaris 2.X makefile - (gcc, creates libpng12.so.0.1.2.7beta1) + (gcc, creates libpng12.so.0.1.2.7beta2) makefile.so9 => Solaris 9 makefile - (gcc, creates libpng12.so.0.1.2.7beta1) + (gcc, creates libpng12.so.0.1.2.7beta2) 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 @@ -1,13 +1,13 @@ Y2K compliance in libpng: ========================= - August 26, 2004 + August 29, 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 1.2.7beta1 are Y2K compliant. It is my belief that earlier + upward through 1.2.7beta2 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 @@ -1,13 +1,13 @@ #!/bin/sh echo " There is no \"configure\" script in this distribution of - libpng-1.2.7beta1. + libpng-1.2.7beta2. 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-1.2.7beta1-config.tar.gz + libpng-1.2.7beta2-config.tar.gz " @@ -742,6 +742,9 @@ void write_png(char *file_name /* , ... other image information ... */) png_byte image[height][width*bytes_per_pixel]; png_bytep row_pointers[height]; + if (height > PNG_UINT_32_MAX/png_sizeof(png_bytep)) + png_error (png_ptr, "Image is too tall to process in memory"); + for (k = 0; k < height; k++) row_pointers[k] = image + k*width*bytes_per_pixel; @@ -1,6 +1,6 @@ -.TH LIBPNG 3 "August 26, 2004" +.TH LIBPNG 3 "August 29, 2004" .SH NAME -libpng \- Portable Network Graphics (PNG) Reference Library 1.2.7beta1 +libpng \- Portable Network Graphics (PNG) Reference Library 1.2.7beta2 .SH SYNOPSIS \fI\fB @@ -402,6 +402,14 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.2.7beta1 \fI\fB +\fB#if \fI!defined(PNG_1_0_X) + +\fBvoid png_set_add_alpha (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIfiller\fP\fB, int \fIflags\fP\fB);\fP + +\fI\fB#endif + +\fI\fB + \fBvoid png_set_background (png_structp \fP\fIpng_ptr\fP\fB, png_color_16p \fP\fIbackground_color\fP\fB, int \fP\fIbackground_gamma_code\fP\fB, int \fP\fIneed_expand\fP\fB, double \fIbackground_gamma\fP\fB);\fP \fI\fB @@ -773,7 +781,7 @@ 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 1.2.7beta1 - August 26, 2004 + libpng version 1.2.7beta2 - August 29, 2004 Updated and distributed by Glenn Randers-Pehrson <glennrp@users.sourceforge.net> Copyright (c) 1998-2004 Glenn Randers-Pehrson @@ -1076,28 +1084,28 @@ 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 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 @@ -3471,127 +3479,126 @@ 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 VII. MNG support -%+%.SH VI. MNG support +.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 VII. MNG support The MNG specification (available at http://www.libpng.org/pub/mng) allows certain extensions to PNG for PNG images that are embedded in MNG datastreams. @@ -3616,8 +3623,7 @@ or any other MNG chunks; your application must provide its own support for them. You may wish to consider using libmng (available at http://www.libmng.com) instead. -%-%.SH VIII. Changes to Libpng from version 0.88 -%+%.SH VII. Changes to Libpng from version 0.88 +.SH VIII. Changes to Libpng from version 0.88 It should be noted that versions of libpng later than 0.96 are not distributed by the original libpng author, Guy Schalnat, nor by @@ -3666,16 +3672,15 @@ application: png_uint_32 application_vn = PNG_LIBPNG_VER; -%-%.SH IX. Y2K Compliance in libpng -%+%.SH VIII. Y2K Compliance in libpng +.SH IX. Y2K Compliance in libpng -August 26, 2004 +August 29, 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 1.2.7beta1 are Y2K compliant. It is my belief that earlier +upward through 1.2.7beta2 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 @@ -3818,7 +3823,7 @@ the first widely used release: 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 - 1.2.7beta1 13 10207 12.so.0.1.2.7beta1 + 1.2.7beta1-2 13 10207 12.so.0.1.2.7beta1-2 Henceforth the source version will match the shared-library minor and patch numbers; the shared-library major version number will be @@ -3874,13 +3879,14 @@ possible without all of you. Thanks to Frank J. T. Wojcik for helping with the documentation. -Libpng version 1.2.7beta1 - August 26, 2004: +Libpng version 1.2.7beta2 - August 29, 2004: Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc. Currently maintained by Glenn Randers-Pehrson (glennrp@users.sourceforge.net). Supported by the PNG development group .br -(png-implement@ccrc.wustl.edu). +png-implement@ccrc.wustl.edu (subscription required; write to +majordomo@ccrc.wustl.edu). .SH COPYRIGHT NOTICE, DISCLAIMER, and LICENSE: @@ -3891,7 +3897,7 @@ included in the libpng distribution, the latter shall prevail.) If you modify libpng you may insert additional notices immediately following this sentence. -libpng version 1.2.6, August 26, 2004, is +libpng version 1.2.6, August 29, 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 @@ -3990,7 +3996,7 @@ certification mark of the Open Source Initiative. Glenn Randers-Pehrson glennrp@users.sourceforge.net -August 26, 2004 +August 29, 2004 .\" end of man page diff --git a/libpng.txt b/libpng.txt index b7f4688a3..7f01daa7f 100644 --- a/libpng.txt +++ b/libpng.txt @@ -1,6 +1,6 @@ libpng.txt - A description on how to use and modify libpng - libpng version 1.2.7beta1 - August 26, 2004 + libpng version 1.2.7beta2 - August 29, 2004 Updated and distributed by Glenn Randers-Pehrson <glennrp@users.sourceforge.net> Copyright (c) 1998-2004 Glenn Randers-Pehrson @@ -2893,13 +2893,13 @@ application: IX. Y2K Compliance in libpng -August 26, 2004 +August 29, 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 1.2.7beta1 are Y2K compliant. It is my belief that earlier +upward through 1.2.7beta2 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 diff --git a/libpngpf.3 b/libpngpf.3 index 33c3a36ff..c7cd4b951 100644 --- a/libpngpf.3 +++ b/libpngpf.3 @@ -1,6 +1,6 @@ -.TH LIBPNGPF 3 "August 26, 2004" +.TH LIBPNGPF 3 "August 29, 2004" .SH NAME -libpng \- Portable Network Graphics (PNG) Reference Library 1.2.7beta1 +libpng \- Portable Network Graphics (PNG) Reference Library 1.2.7beta2 (private functions) .SH SYNOPSIS \fB\fB#include <png.h>\fP\fP @@ -1,4 +1,4 @@ -.TH PNG 5 "August 26, 2004" +.TH PNG 5 "August 29, 2004" .SH NAME png \- Portable Network Graphics (PNG) format .SH DESCRIPTION @@ -1,7 +1,7 @@ /* png.c - location for general purpose libpng functions * - * libpng version 1.2.7beta1 - August 26, 2004 + * libpng version 1.2.7beta2 - August 29, 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) @@ -13,7 +13,7 @@ #include "png.h" /* Generate a compiler error if there is an old png.h in the search path. */ -typedef version_1_2_7beta1 Your_png_h_is_not_version_1_2_7beta1; +typedef version_1_2_7beta2 Your_png_h_is_not_version_1_2_7beta2; /* Version information for C files. This had better match the version * string defined in png.h. */ @@ -678,7 +678,7 @@ png_charp PNGAPI png_get_copyright(png_structp png_ptr) { if (&png_ptr != NULL) /* silence compiler warning about unused png_ptr */ - return ((png_charp) "\n libpng version 1.2.7beta1 - August 26, 2004\n\ + return ((png_charp) "\n libpng version 1.2.7beta2 - August 29, 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"); @@ -1,6 +1,6 @@ /* png.h - header file for PNG reference library * - * libpng version 1.2.7beta1 - August 26, 2004 + * libpng version 1.2.7beta2 - August 29, 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.) @@ -8,7 +8,7 @@ * Authors and maintainers: * libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat * libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger - * libpng versions 0.97, January 1998, through 1.2.7beta1 - August 26, 2004: Glenn + * libpng versions 0.97, January 1998, through 1.2.7beta2 - August 29, 2004: Glenn * See also "Contributing Authors", below. * * Note about libpng version numbers: @@ -101,7 +101,7 @@ * 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 - * 1.2.7beta1 13 10207 12.so.0.1.2.7beta1 + * 1.2.7beta1-2 13 10207 12.so.0.1.2.7beta1-2 * * Henceforth the source version will match the shared-library major * and minor numbers; the shared-library major version number will be @@ -131,7 +131,7 @@ * If you modify libpng you may insert additional notices immediately following * this sentence. * - * libpng versions 1.2.6, August 15, 2004, through 1.2.7beta1, August 26, 2004, are + * libpng versions 1.2.6, August 15, 2004, through 1.2.7beta2, August 29, 2004, are * Copyright (c) 2004 Glenn Randers-Pehrson, and are * distributed according to the same disclaimer and license as libpng-1.2.5 * with the following individual added to the list of Contributing Authors: @@ -243,13 +243,13 @@ * Y2K compliance in libpng: * ========================= * - * August 26, 2004 + * August 29, 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 1.2.7beta1 are Y2K compliant. It is my belief that earlier + * upward through 1.2.7beta2 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 @@ -305,9 +305,9 @@ */ /* Version information for png.h - this should match the version in png.c */ -#define PNG_LIBPNG_VER_STRING "1.2.7beta1" +#define PNG_LIBPNG_VER_STRING "1.2.7beta2" #define PNG_HEADER_VERSION_STRING \ - " libpng version 1.2.7beta1 - August 26, 2004 (header)\n" + " libpng version 1.2.7beta2 - August 29, 2004 (header)\n" #define PNG_LIBPNG_VER_SONUM 0 #define PNG_LIBPNG_VER_DLLNUM %DLLNUM% @@ -319,7 +319,7 @@ /* This should match the numeric part of the final component of * PNG_LIBPNG_VER_STRING, omitting any leading zero: */ -#define PNG_LIBPNG_VER_BUILD 1 +#define PNG_LIBPNG_VER_BUILD 2 #define PNG_LIBPNG_BUILD_ALPHA 1 #define PNG_LIBPNG_BUILD_BETA 2 @@ -1311,7 +1311,7 @@ struct png_struct_def /* 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_2_7beta1; +typedef png_structp version_1_2_7beta2; typedef png_struct FAR * FAR * png_structpp; @@ -1483,12 +1483,17 @@ extern PNG_EXPORT(void,png_set_invert_alpha) PNGARG((png_structp png_ptr)); #endif #if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED) -/* Add a filler byte to 24-bit RGB images. */ +/* Add a filler byte to 8-bit Gray or 24-bit RGB images. */ extern PNG_EXPORT(void,png_set_filler) PNGARG((png_structp png_ptr, png_uint_32 filler, int flags)); /* The values of the PNG_FILLER_ defines should NOT be changed */ #define PNG_FILLER_BEFORE 0 #define PNG_FILLER_AFTER 1 +/* Add an alpha byte to 8-bit Gray or 24-bit RGB images. */ +#if !defined(PNG_1_0_X) +extern PNG_EXPORT(void,png_set_add_alpha) PNGARG((png_structp png_ptr, + png_uint_32 filler, int flags)); +#endif #endif /* PNG_READ_FILLER_SUPPORTED || PNG_WRITE_FILLER_SUPPORTED */ #if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) @@ -2572,6 +2577,7 @@ extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp #define PNG_RGB_TO_GRAY_ERR 0x200000L #define PNG_RGB_TO_GRAY_WARN 0x400000L #define PNG_RGB_TO_GRAY 0x600000L /* two bits, RGB_TO_GRAY_ERR|WARN */ +#define PNG_ADD_ALPHA 0x1000000L /* Added to libpng-1.2.7 */ /* flags for png_create_struct */ #define PNG_STRUCT_PNG 0x0001 @@ -1,7 +1,7 @@ /* pngconf.h - machine configurable file for libpng * - * libpng version 1.2.7beta1 - August 26, 2004 + * libpng version 1.2.7beta2 - August 29, 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) diff --git a/pngerror.c b/pngerror.c index 9ea4a0bb5..0c0ee6e78 100644 --- a/pngerror.c +++ b/pngerror.c @@ -1,7 +1,7 @@ /* pngerror.c - stub functions for i/o and memory allocation * - * libpng version 1.2.7beta1 - August 26, 2004 + * libpng version 1.2.7beta2 - August 29, 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) diff --git a/pnggccrd.c b/pnggccrd.c index 85bdaf6d1..24a7e3d4d 100644 --- a/pnggccrd.c +++ b/pnggccrd.c @@ -6,7 +6,7 @@ * 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 1.2.7beta1 - August 26, 2004 + * libpng version 1.2.7beta2 - August 29, 2004 * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2004 Glenn Randers-Pehrson * Copyright (c) 1998, Intel Corporation @@ -1,7 +1,7 @@ /* pngget.c - retrieval of values from info struct * - * libpng 1.2.7beta1 - August 26, 2004 + * libpng 1.2.7beta2 - August 29, 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) @@ -1,7 +1,7 @@ /* pngmem.c - stub functions for memory allocation * - * libpng version 1.2.7beta1 - August 26, 2004 + * libpng version 1.2.7beta2 - August 29, 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) diff --git a/pngpread.c b/pngpread.c index f7c0f3940..3c7730a6d 100644 --- a/pngpread.c +++ b/pngpread.c @@ -1,7 +1,7 @@ /* pngpread.c - read a png file in push mode * - * libpng version 1.2.7beta1 - August 26, 2004 + * libpng version 1.2.7beta2 - August 29, 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) @@ -1,7 +1,7 @@ /* pngread.c - read a PNG file * - * libpng 1.2.7beta1 - August 26, 2004 + * libpng 1.2.7beta2 - August 29, 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) @@ -803,7 +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 1.2.7beta1 + * [*] png_handle_alpha() does not exist yet, as of libpng version 1.2.7beta2 */ void PNGAPI @@ -853,7 +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 1.2.7beta1 + * [*] png_handle_alpha() does not exist yet, as of libpng version 1.2.7beta2 */ void PNGAPI png_read_image(png_structp png_ptr, png_bytepp image) @@ -1,7 +1,7 @@ /* pngrio.c - functions for data input * - * libpng 1.2.7beta1 - August 26, 2004 + * libpng 1.2.7beta2 - August 29, 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) diff --git a/pngrtran.c b/pngrtran.c index ef29e4d69..f13b540a9 100644 --- a/pngrtran.c +++ b/pngrtran.c @@ -1,7 +1,7 @@ /* pngrtran.c - transforms the data in a row for PNG readers * - * libpng version 1.2.7beta1 - August 26, 2004 + * libpng version 1.2.7beta2 - August 29, 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) @@ -1135,8 +1135,10 @@ png_read_transform_info(png_structp png_ptr, png_infop info_ptr) (info_ptr->color_type == PNG_COLOR_TYPE_GRAY))) { info_ptr->channels++; -#if 0 /* if adding a true alpha channel not just filler */ - info_ptr->color_type |= PNG_COLOR_MASK_ALPHA; + /* if adding a true alpha channel not just filler */ +#if !defined(PNG_1_0_X) + if (png_ptr->transformations & PNG_ADD_ALPHA) + info_ptr->color_type |= PNG_COLOR_MASK_ALPHA; #endif } #endif @@ -1927,7 +1929,6 @@ 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) { @@ -2012,7 +2013,6 @@ 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 diff --git a/pngrutil.c b/pngrutil.c index e5008eda0..7ca5e7276 100644 --- a/pngrutil.c +++ b/pngrutil.c @@ -1,6 +1,6 @@ /* pngrutil.c - utilities to read a PNG file * - * libpng version 1.2.7beta1 - August 26, 2004 + * libpng version 1.2.7beta2 - August 29, 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) @@ -1,7 +1,7 @@ /* pngset.c - storage of image information into info struct * - * libpng 1.2.7beta1 - August 26, 2004 + * libpng 1.2.7beta2 - August 29, 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) @@ -1,7 +1,7 @@ /* pngtest.c - a simple test program to test libpng * - * libpng 1.2.7beta1 - August 26, 2004 + * libpng 1.2.7beta2 - August 29, 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) @@ -1551,4 +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_2_7beta1 your_png_h_is_not_version_1_2_7beta1; +typedef version_1_2_7beta2 your_png_h_is_not_version_1_2_7beta2; diff --git a/pngtrans.c b/pngtrans.c index bad934940..4256ae61b 100644 --- a/pngtrans.c +++ b/pngtrans.c @@ -1,7 +1,7 @@ /* pngtrans.c - transforms the data in a row (used by both readers and writers) * - * libpng 1.2.7beta1 - August 26, 2004 + * libpng 1.2.7beta2 - August 29, 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) @@ -118,6 +118,18 @@ png_set_filler(png_structp png_ptr, png_uint_32 filler, int filler_loc) png_ptr->usr_channels = 2; } } + +#if !defined(PNG_1_0_X) +/* Added to libpng-1.2.7 */ +void PNGAPI +png_set_add_alpha(png_structp png_ptr, png_uint_32 filler, int filler_loc) +{ + png_debug(1, "in png_set_add_alpha\n"); + png_set_filler(png_ptr, filler, filler_loc); + png_ptr->transformations |= PNG_ADD_ALPHA; +} +#endif + #endif #if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) || \ @@ -2,7 +2,7 @@ * * For Intel x86 CPU and Microsoft Visual C++ compiler * - * libpng version 1.2.7beta1 - August 26, 2004 + * libpng version 1.2.7beta2 - August 29, 2004 * For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2004 Glenn Randers-Pehrson * Copyright (c) 1998, Intel Corporation @@ -1,7 +1,7 @@ /* pngwio.c - functions for data output * - * libpng 1.2.7beta1 - August 26, 2004 + * libpng 1.2.7beta2 - August 29, 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) diff --git a/pngwrite.c b/pngwrite.c index 5f07e4f9a..fc6f12340 100644 --- a/pngwrite.c +++ b/pngwrite.c @@ -1,7 +1,7 @@ /* pngwrite.c - general routines to write a PNG file * - * libpng 1.2.7beta1 - August 26, 2004 + * libpng 1.2.7beta2 - August 29, 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) diff --git a/pngwtran.c b/pngwtran.c index 356d14701..91218efae 100644 --- a/pngwtran.c +++ b/pngwtran.c @@ -1,7 +1,7 @@ /* pngwtran.c - transforms the data in a row for PNG writers * - * libpng version 1.2.7beta1 - August 26, 2004 + * libpng version 1.2.7beta2 - August 29, 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) diff --git a/pngwutil.c b/pngwutil.c index 63d19f1b9..c2f371dfc 100644 --- a/pngwutil.c +++ b/pngwutil.c @@ -1,7 +1,7 @@ /* pngwutil.c - utilities to write a PNG file * - * libpng version 1.2.7beta1 - August 26, 2004 + * libpng version 1.2.7beta2 - August 29, 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) @@ -1528,6 +1528,7 @@ png_write_sCAL(png_structp png_ptr, int unit, double width,double height) #endif png_size_t total_len; char wbuf[32], hbuf[32]; + png_byte bunit = unit; png_debug(1, "in png_write_sCAL\n"); @@ -1548,7 +1549,7 @@ png_write_sCAL(png_structp png_ptr, int unit, double width,double height) png_debug1(3, "sCAL total length = %d\n", (int)total_len); png_write_chunk_start(png_ptr, (png_bytep)png_sCAL, (png_uint_32)total_len); - png_write_chunk_data(png_ptr, (png_bytep)&unit, 1); + png_write_chunk_data(png_ptr, (png_bytep)&bunit, 1); png_write_chunk_data(png_ptr, (png_bytep)wbuf, png_strlen(wbuf)+1); png_write_chunk_data(png_ptr, (png_bytep)hbuf, png_strlen(hbuf)); @@ -1565,6 +1566,7 @@ png_write_sCAL_s(png_structp png_ptr, int unit, png_charp width, #endif png_size_t total_len; char wbuf[32], hbuf[32]; + png_byte bunit = unit; png_debug(1, "in png_write_sCAL_s\n"); @@ -1574,7 +1576,7 @@ png_write_sCAL_s(png_structp png_ptr, int unit, png_charp width, png_debug1(3, "sCAL total length = %d\n", total_len); png_write_chunk_start(png_ptr, (png_bytep)png_sCAL, (png_uint_32)total_len); - png_write_chunk_data(png_ptr, (png_bytep)&unit, 1); + png_write_chunk_data(png_ptr, (png_bytep)&bunit, 1); png_write_chunk_data(png_ptr, (png_bytep)wbuf, png_strlen(wbuf)+1); png_write_chunk_data(png_ptr, (png_bytep)hbuf, png_strlen(hbuf)); diff --git a/scripts/libpng-config-head.in b/scripts/libpng-config-head.in index 30fe17d67..72dce767b 100755 --- a/scripts/libpng-config-head.in +++ b/scripts/libpng-config-head.in @@ -8,7 +8,7 @@ # Modeled after libxml-config. -version=1.2.7beta1 +version=1.2.7beta2 prefix="" libdir="" libs="" diff --git a/scripts/libpng.pc.in b/scripts/libpng.pc.in index 10df7a20f..557f88819 100644 --- a/scripts/libpng.pc.in +++ b/scripts/libpng.pc.in @@ -6,6 +6,6 @@ includedir=${exec_prefix}/include Name: libpng12 Description: Loads and saves PNG files -Version: 1.2.7beta1 +Version: 1.2.7beta2 Libs: -L${libdir} -lpng12 -lz -lm Cflags: -I${includedir}/libpng12 diff --git a/scripts/makefile.32sunu b/scripts/makefile.32sunu index c560372c6..b07beb656 100644 --- a/scripts/makefile.32sunu +++ b/scripts/makefile.32sunu @@ -33,7 +33,7 @@ RANLIB=echo LIBNAME=libpng12 PNGMAJ = 0 -PNGMIN = 1.2.7beta1 +PNGMIN = 1.2.7beta2 PNGVER = $(PNGMAJ).$(PNGMIN) INCPATH=$(prefix)/include diff --git a/scripts/makefile.64sunu b/scripts/makefile.64sunu index 0bbbe9b1b..476c4e555 100644 --- a/scripts/makefile.64sunu +++ b/scripts/makefile.64sunu @@ -33,7 +33,7 @@ RANLIB=echo LIBNAME=libpng12 PNGMAJ = 0 -PNGMIN = 1.2.7beta1 +PNGMIN = 1.2.7beta2 PNGVER = $(PNGMAJ).$(PNGMIN) INCPATH=$(prefix)/include diff --git a/scripts/makefile.aix b/scripts/makefile.aix index 0aa915cdf..3df945476 100644 --- a/scripts/makefile.aix +++ b/scripts/makefile.aix @@ -18,7 +18,7 @@ RM = rm -f LIBNAME=libpng12 PNGMAJ = 0 -PNGMIN = 1.2.7beta1 +PNGMIN = 1.2.7beta2 PNGVER = $(PNGMAJ).$(PNGMIN) prefix=/usr/local diff --git a/scripts/makefile.beos b/scripts/makefile.beos index c9fc0e419..441117744 100644 --- a/scripts/makefile.beos +++ b/scripts/makefile.beos @@ -12,7 +12,7 @@ ZLIBLIB=/usr/local/lib ZLIBINC=/usr/local/include PNGMAJ = 0 -PNGMIN = 1.2.7beta1 +PNGMIN = 1.2.7beta2 PNGVER = $(PNGMAJ).$(PNGMIN) ALIGN= diff --git a/scripts/makefile.cygwin b/scripts/makefile.cygwin index b0e967511..250e4fde1 100644 --- a/scripts/makefile.cygwin +++ b/scripts/makefile.cygwin @@ -79,7 +79,7 @@ CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \ LIBNAME = libpng12 PNGMAJ = 0 CYGDLL = 12 -PNGMIN = 1.2.7beta1 +PNGMIN = 1.2.7beta2 PNGVER = $(PNGMAJ).$(PNGMIN) SHAREDLIB=cygpng$(CYGDLL).dll diff --git a/scripts/makefile.darwin b/scripts/makefile.darwin index 330d7ccee..893320008 100644 --- a/scripts/makefile.darwin +++ b/scripts/makefile.darwin @@ -23,7 +23,7 @@ LDFLAGS=-L. -L$(ZLIBLIB) -lpng12 -lz RANLIB=ranlib PNGMAJ = 0 -PNGMIN = 1.2.7beta1 +PNGMIN = 1.2.7beta2 PNGVER = $(PNGMAJ).$(PNGMIN) LIBNAME = libpng12 diff --git a/scripts/makefile.dec b/scripts/makefile.dec index ca2fb0830..a9b6d8e34 100644 --- a/scripts/makefile.dec +++ b/scripts/makefile.dec @@ -32,7 +32,7 @@ ZLIBLIB=../zlib ZLIBINC=../zlib PNGMAJ = 0 -PNGMIN = 1.2.7beta1 +PNGMIN = 1.2.7beta2 PNGVER = $(PNGMAJ).$(PNGMIN) LIBNAME = libpng12 diff --git a/scripts/makefile.gcmmx b/scripts/makefile.gcmmx index 29a8022f7..dd30dcbf7 100644 --- a/scripts/makefile.gcmmx +++ b/scripts/makefile.gcmmx @@ -15,7 +15,7 @@ LIBNAME = libpng12 PNGMAJ = 0 -PNGMIN = 1.2.7beta1 +PNGMIN = 1.2.7beta2 PNGVER = $(PNGMAJ).$(PNGMIN) CC=gcc diff --git a/scripts/makefile.hpgcc b/scripts/makefile.hpgcc index 4ffacbdc0..cd704a88b 100644 --- a/scripts/makefile.hpgcc +++ b/scripts/makefile.hpgcc @@ -41,7 +41,7 @@ RANLIB=ranlib #RANLIB=echo PNGMAJ = 0 -PNGMIN = 1.2.7beta1 +PNGMIN = 1.2.7beta2 PNGVER = $(PNGMAJ).$(PNGMIN) LIBNAME = libpng12 diff --git a/scripts/makefile.hpux b/scripts/makefile.hpux index 403387c9e..dc339dc4c 100644 --- a/scripts/makefile.hpux +++ b/scripts/makefile.hpux @@ -24,7 +24,7 @@ LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm RANLIB=ranlib PNGMAJ = 0 -PNGMIN = 1.2.7beta1 +PNGMIN = 1.2.7beta2 PNGVER = $(PNGMAJ).$(PNGMIN) LIBNAME = libpng12 diff --git a/scripts/makefile.linux b/scripts/makefile.linux index 8ac478a61..84944a9d3 100644 --- a/scripts/makefile.linux +++ b/scripts/makefile.linux @@ -5,7 +5,7 @@ LIBNAME = libpng12 PNGMAJ = 0 -PNGMIN = 1.2.7beta1 +PNGMIN = 1.2.7beta2 PNGVER = $(PNGMAJ).$(PNGMIN) CC=gcc diff --git a/scripts/makefile.ne12bsd b/scripts/makefile.ne12bsd index 54ed006d5..6946fcfdb 100644 --- a/scripts/makefile.ne12bsd +++ b/scripts/makefile.ne12bsd @@ -13,7 +13,7 @@ INCSDIR=${LOCALBASE}/include/libpng12 LIB= png12 SHLIB_MAJOR= 0 -SHLIB_MINOR= 1.2.7beta1 +SHLIB_MINOR= 1.2.7beta2 SRCS= pnggccrd.c png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \ pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \ pngwtran.c pngmem.c pngerror.c pngpread.c diff --git a/scripts/makefile.netbsd b/scripts/makefile.netbsd index 8a16f58ba..a557ac7d8 100644 --- a/scripts/makefile.netbsd +++ b/scripts/makefile.netbsd @@ -13,7 +13,7 @@ INCSDIR=${LOCALBASE}/include/libpng LIB= png SHLIB_MAJOR= 3 -SHLIB_MINOR= 1.2.7beta1 +SHLIB_MINOR= 1.2.7beta2 SRCS= pnggccrd.c png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \ pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \ pngwtran.c pngmem.c pngerror.c pngpread.c diff --git a/scripts/makefile.openbsd b/scripts/makefile.openbsd index 8f93502ad..010eb9a33 100644 --- a/scripts/makefile.openbsd +++ b/scripts/makefile.openbsd @@ -7,7 +7,7 @@ LIBDIR= ${PREFIX}/lib MANDIR= ${PREFIX}/man/cat SHLIB_MAJOR= 0 -SHLIB_MINOR= 1.2.7beta1 +SHLIB_MINOR= 1.2.7beta2 LIB= png SRCS= png.c pngerror.c pnggccrd.c pngget.c pngmem.c pngpread.c \ diff --git a/scripts/makefile.sco b/scripts/makefile.sco index 0dc0320c5..bb0a55ee9 100644 --- a/scripts/makefile.sco +++ b/scripts/makefile.sco @@ -24,7 +24,7 @@ LDFLAGS=-L. -L$(ZLIBLIB) -lpng12 -lz -lm RANLIB=echo PNGMAJ = 0 -PNGMIN = 1.2.7beta1 +PNGMIN = 1.2.7beta2 PNGVER = $(PNGMAJ).$(PNGMIN) LIBNAME = libpng12 diff --git a/scripts/makefile.sggcc b/scripts/makefile.sggcc index 8761fe4d7..0778e7129 100644 --- a/scripts/makefile.sggcc +++ b/scripts/makefile.sggcc @@ -18,7 +18,7 @@ ZLIBINC=../zlib LIBNAME=libpng12 PNGMAJ = 0 -PNGMIN = 1.2.7beta1 +PNGMIN = 1.2.7beta2 PNGVER = $(PNGMAJ).$(PNGMIN) CC=gcc diff --git a/scripts/makefile.sgi b/scripts/makefile.sgi index acf7799ff..d0e73a9a7 100644 --- a/scripts/makefile.sgi +++ b/scripts/makefile.sgi @@ -5,7 +5,7 @@ LIBNAME=libpng12 PNGMAJ = 0 -PNGMIN = 1.2.7beta1 +PNGMIN = 1.2.7beta2 PNGVER = $(PNGMAJ).$(PNGMIN) # Where make install puts libpng.a, libpng12.so, and libpng12/png.h diff --git a/scripts/makefile.so9 b/scripts/makefile.so9 index feff9adb0..2649eefcf 100644 --- a/scripts/makefile.so9 +++ b/scripts/makefile.so9 @@ -34,7 +34,7 @@ LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng12 -lz -lm RANLIB=echo PNGMAJ = 0 -PNGMIN = 1.2.7beta1 +PNGMIN = 1.2.7beta2 PNGVER = $(PNGMAJ).$(PNGMIN) LIBNAME = libpng12 diff --git a/scripts/makefile.solaris b/scripts/makefile.solaris index 52a5d9a69..794db1cc3 100644 --- a/scripts/makefile.solaris +++ b/scripts/makefile.solaris @@ -30,7 +30,7 @@ LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng12 -lz -lm RANLIB=echo PNGMAJ = 0 -PNGMIN = 1.2.7beta1 +PNGMIN = 1.2.7beta2 PNGVER = $(PNGMAJ).$(PNGMIN) LIBNAME = libpng12 diff --git a/scripts/pngos2.def b/scripts/pngos2.def index 15d36e823..8590160a0 100644 --- a/scripts/pngos2.def +++ b/scripts/pngos2.def @@ -2,7 +2,7 @@ ; PNG.LIB module definition file for OS/2 ;---------------------------------------- -; Version 1.2.7beta1 +; Version 1.2.7beta2 LIBRARY PNG DESCRIPTION "PNG image compression library for OS/2" @@ -184,6 +184,34 @@ EXPORTS png_convert_to_rfc1123 png_set_invalid +; Added at version 1.2.0: + png_mmx_support + png_permit_empty_plte + png_permit_mng_features + png_get_mmx_flagmask + png_get_asm_flagmask + png_get_asm_flags + png_get_mmx_bitdepth_threshold + png_get_mmx_rowbytes_threshold + png_set_asm_flags + png_init_mmx_flags + +; Added at version 1.2.2: + png_handle_as_unknown + +; Added at version 1.2.2 and deleted from 1.2.3: +; png_zalloc +; png_zfree + +; 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 +; Added at version 1.2.7 + png_set_add_alpha ; These are not present when libpng is compiled with PNG_NO_GLOBAL_ARRAYS png_libpng_ver diff --git a/scripts/pngw32.def b/scripts/pngw32.def index f7bac62d4..40477f0a0 100644 --- a/scripts/pngw32.def +++ b/scripts/pngw32.def @@ -6,7 +6,7 @@ LIBRARY DESCRIPTION "PNG image compression library for Windows" EXPORTS -;Version 1.2.7beta1 +;Version 1.2.7beta2 png_build_grayscale_palette @1 png_check_sig @2 png_chunk_error @3 @@ -191,3 +191,37 @@ EXPORTS png_write_init_3 @176 png_info_init_3 @177 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 +; MNG features + 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 +; Strip error numbers + png_set_strip_error_numbers @193 +; Added at version 1.2.2 + 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 +; Added at version 1.2.7 + png_set_add_alpha @199 |