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Bug 1877327 - Update libpng to version 1.6.42. r=tnikkel 

Differential Revision: https://phabricator.services.mozilla.com/D201926
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Mike Hommey 2024-02-19 22:20:07 +00:00
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Коммит ee4f298265
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62
media/libpng/ANNOUNCE
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@ -1,5 +1,5 @@
libpng 1.6.39 - November 20, 2022
=================================
libpng 1.6.42 - January 29, 2024
================================
This is a public release of libpng, intended for use in production code.
@ -9,13 +9,13 @@ Files available for download
Source files with LF line endings (for Unix/Linux):
* libpng-1.6.39.tar.xz (LZMA-compressed, recommended)
* libpng-1.6.39.tar.gz
* libpng-1.6.42.tar.xz (LZMA-compressed, recommended)
* libpng-1.6.42.tar.gz (deflate-compressed)
Source files with CRLF line endings (for Windows):
* lpng1639.7z (LZMA-compressed, recommended)
* lpng1639.zip
* lpng1642.7z (LZMA-compressed, recommended)
* lpng1642.zip (deflate-compressed)
Other information:
@ -25,19 +25,47 @@ Other information:
* TRADEMARK.md
Changes from version 1.6.38 to version 1.6.39
Changes from version 1.6.41 to version 1.6.42
---------------------------------------------
* Changed the error handler of oversized chunks (i.e. larger than
PNG_USER_CHUNK_MALLOC_MAX) from png_chunk_error to png_benign_error.
* Fixed a buffer overflow error in contrib/tools/pngfix.
* Fixed a memory leak (CVE-2019-6129) in contrib/tools/pngcp.
* Disabled the ARM Neon optimizations by default in the CMake file,
following the default behavior of the configure script.
* Allowed configure.ac to work with the trunk version of autoconf.
* Removed the support for "install" targets from the legacy makefiles;
removed the obsolete makefile.cegcc.
* Cleaned up the code and updated the internal documentation.
* Fixed the implementation of the macro function `png_check_sig`.
This was an API regression, introduced in libpng-1.6.41.
(Reported by Matthieu Darbois)
Changes from version 1.6.40 to version 1.6.41
---------------------------------------------
* Added SIMD-optimized code for the Loongarch LSX hardware.
(Contributed by GuXiWei, JinBo and ZhangLixia)
* Fixed the run-time discovery of MIPS MSA hardware.
(Contributed by Sui Jingfeng)
* Fixed an off-by-one error in the function `png_do_check_palette_indexes`,
which failed to recognize errors that might have existed in the first
column of a broken palette-encoded image. This was a benign regression
accidentally introduced in libpng-1.6.33. No pixel was harmed.
(Contributed by Adam Richter; reviewed by John Bowler)
* Fixed, improved and modernized the contrib/pngminus programs, i.e.,
png2pnm.c and pnm2png.c
* Removed old and peculiar portability hacks that were meant to silence
warnings issued by gcc version 7.1 alone.
(Contributed by John Bowler)
* Fixed and modernized the CMake file, and raised the minimum required
CMake version from 3.1 to 3.6.
(Contributed by Clinton Ingram, Timothy Lyanguzov, Tyler Kropp, et al.)
* Allowed the configure script to disable the building of auxiliary tools
and tests, thus catching up with the CMake file.
(Contributed by Carlo Bramini)
* Fixed a build issue on Mac.
(Contributed by Zixu Wang)
* Moved the Autoconf macro files to scripts/autoconf.
* Moved the CMake files (except for the main CMakeLists.txt) to
scripts/cmake and moved the list of their contributing authors to
scripts/cmake/AUTHORS.md
* Updated the CI configurations and scripts.
* Relicensed the CI scripts to the MIT License.
* Improved the test coverage.
(Contributed by John Bowler)
Send comments/corrections/commendations to png-mng-implement at lists.sf.net.

30
media/libpng/AUTHORS
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@ -4,6 +4,7 @@ PNG REFERENCE LIBRARY AUTHORS
This is the list of PNG Reference Library ("libpng") Contributing
Authors, for copyright and licensing purposes.
* Adam Richter
* Andreas Dilger
* Cosmin Truta
* Dave Martindale
@ -22,6 +23,7 @@ Authors, for copyright and licensing purposes.
* Mike Klein
* Pascal Massimino
* Paul Schmidt
* Philippe Antoine
* Qiang Zhou
* Sam Bushell
* Samuel Williams
@ -32,19 +34,27 @@ Authors, for copyright and licensing purposes.
* Vadim Barkov
* Willem van Schaik
* Zhijie Liang
* Apple Inc.
- Zixu Wang (王子旭)
* Arm Holdings
- Richard Townsend
- Richard Townsend
* Google Inc.
- Dan Field
- Leon Scroggins III
- Matt Sarett
- Mike Klein
- Sami Boukortt
- Dan Field
- Leon Scroggins III
- Matt Sarett
- Mike Klein
- Sami Boukortt
- Wan-Teh Chang
* Loongson Technology Corporation Ltd.
- GuXiWei (顾希伟)
- JinBo (金波)
- ZhangLixia (张利霞)
The build projects, the build scripts, the test scripts, and other
files in the "ci", "projects", "scripts" and "tests" directories, have
files in the "projects", "scripts" and "tests" directories, have
other copyright owners, but are released under the libpng license.
Some files in the "contrib" directory, and some tools-generated files
that are distributed with libpng, have other copyright owners, and are
released under other open source licenses.
Some files in the "ci" and "contrib" directories, as well as some
of the tools-generated files that are distributed with libpng, have
other copyright owners, and are released under other open source
licenses.

57
media/libpng/CHANGES
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@ -204,7 +204,7 @@ Version 0.97 [January, 1998]
Added simple sRGB support (Glenn R-P)
Easier conditional compiling, e.g.,
define PNG_READ/WRITE_NOT_FULLY_SUPPORTED;
all configurable options can be selected from command-line instead
all configurable options can be selected from command line instead
of having to edit pngconf.h (Glenn R-P)
Fixed memory leak in pngwrite.c (free info_ptr->text) (Glenn R-P)
Added more conditions for png_do_background, to avoid changing
@ -942,7 +942,7 @@ Version 1.0.8 [July 24, 2000]
Version 1.0.9beta1 [November 10, 2000]
Fixed typo in scripts/makefile.hpux
Updated makevms.com in scripts and contrib/* and contrib/* (Martin Zinser)
Fixed seqence-point bug in contrib/pngminus/png2pnm (Martin Zinser)
Fixed sequence-point bug in contrib/pngminus/png2pnm (Martin Zinser)
Changed "cdrom.com" in documentation to "libpng.org"
Revised pnggccrd.c to get it all working, and updated makefile.gcmmx (Greg).
Changed type of "params" from voidp to png_voidp in png_read|write_png().
@ -2295,7 +2295,7 @@ Version 1.4.0beta58 [May 14, 2009]
Clarified usage of sig_bit versus sig_bit_p in example.c (Vincent Torri)
Version 1.4.0beta59 [May 15, 2009]
Reformated sources in libpng style (3-space indentation, comment format)
Reformatted sources in libpng style (3-space indentation, comment format)
Fixed typo in libpng docs (PNG_FILTER_AVE should be PNG_FILTER_AVG)
Added sections about the git repository and our coding style to the
documentation
@ -2661,7 +2661,7 @@ Version 1.4.1beta06 [January 28, 2010]
Version 1.4.1beta07 [February 6, 2010]
Folded some long lines in the source files.
Added defineable PNG_USER_CHUNK_CACHE_MAX, PNG_USER_CHUNK_MALLOC_MAX,
Added definable PNG_USER_CHUNK_CACHE_MAX, PNG_USER_CHUNK_MALLOC_MAX,
and a PNG_USER_LIMITS_SUPPORTED flag.
Eliminated use of png_ptr->irowbytes and reused the slot in png_ptr as
png_ptr->png_user_chunk_malloc_max.
@ -3919,7 +3919,7 @@ Version 1.6.0beta08 [February 1, 2012]
version checking to configure.ac
Improved pngstest speed by not doing redundant tests and add const to
the background parameter of png_image_finish_read. The --background
option is now done automagically only when required, so that commandline
option is now done automagically only when required, so that command-line
option no longer exists.
Cleaned up pngpriv.h to consistently declare all functions and data.
Also eliminated PNG_CONST_DATA, which is apparently not needed but we
@ -5927,7 +5927,7 @@ Version 1.6.32beta03 [August 2, 2017]
(Bug report from the OSS-fuzz project).
Version 1.6.32beta04 [August 2, 2017]
Replaced local eXIf_buf with info_ptr-eXIf_buf in png_handle_eXIf().
Replaced local eXIf_buf with info_ptr->eXIf_buf in png_handle_eXIf().
Update libpng.3 and libpng-manual.txt about eXIf functions.
Version 1.6.32beta05 [August 2, 2017]
@ -6121,6 +6121,51 @@ Version 1.6.39 [November 20, 2022]
removed the obsolete makefile.cegcc.
Cleaned up the code and updated the internal documentation.
Version 1.6.40 [June 21, 2023]
Fixed the eXIf chunk multiplicity checks.
Fixed a memory leak in pCAL processing.
Corrected the validity report about tRNS inside png_get_valid().
Fixed various build issues on *BSD, Mac and Windows.
Updated the configurations and the scripts for continuous integration.
Cleaned up the code, the build scripts, and the documentation.
Version 1.6.41 [January 24, 2024]
Added SIMD-optimized code for the Loongarch LSX hardware.
(Contributed by GuXiWei, JinBo and ZhangLixia)
Fixed the run-time discovery of MIPS MSA hardware.
(Contributed by Sui Jingfeng)
Fixed an off-by-one error in the function png_do_check_palette_indexes(),
which failed to recognize errors that might have existed in the first
column of a broken palette-encoded image. This was a benign regression
accidentally introduced in libpng-1.6.33. No pixel was harmed.
(Contributed by Adam Richter; reviewed by John Bowler)
Fixed, improved and modernized the contrib/pngminus programs, i.e.,
png2pnm.c and pnm2png.c
Removed old and peculiar portability hacks that were meant to silence
warnings issued by gcc version 7.1 alone.
(Contributed by John Bowler)
Fixed and modernized the CMake file, and raised the minimum required
CMake version from 3.1 to 3.6.
(Contributed by Clinton Ingram, Timothy Lyanguzov, Tyler Kropp, et al.)
Allowed the configure script to disable the building of auxiliary tools
and tests, thus catching up with the CMake file.
(Contributed by Carlo Bramini)
Fixed a build issue on Mac.
(Contributed by Zixu Wang)
Moved the Autoconf macro files to scripts/autoconf.
Moved the CMake files (except for the main CMakeLists.txt) to
scripts/cmake and moved the list of their contributing authors to
scripts/cmake/AUTHORS.md
Updated the CI configurations and scripts.
Relicensed the CI scripts to the MIT License.
Improved the test coverage.
(Contributed by John Bowler)
Version 1.6.42 [January 29, 2024]
Fixed the implementation of the macro function png_check_sig().
This was an API regression, introduced in libpng-1.6.41.
(Reported by Matthieu Darbois)
Send comments/corrections/commendations to png-mng-implement at lists.sf.net.
Subscription is required; visit
https://lists.sourceforge.net/lists/listinfo/png-mng-implement

33
media/libpng/Fix-contrib-conftest-pngcp.dfa.patch Normal file
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@ -0,0 +1,33 @@
From 59a68c83f0ead9bac34afecba6989b71fb4902bd Mon Sep 17 00:00:00 2001
From: John Bowler <jbowler@acm.org>
Date: Tue, 30 Jan 2024 14:00:45 -0800
Subject: [PATCH] Fix contrib/conftest/pngcp.dfa
This was broken by the corrections to the 'palette max' handling; if
that is disabled the test of num_palette_max must be removed in pnread.c
Signed-off-by: John Bowler <jbowler@acm.org>
---
pngread.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/pngread.c b/pngread.c
index 008a41856..07a39df6e 100644
--- a/pngread.c
+++ b/pngread.c
@@ -568,7 +568,11 @@ png_read_row(png_structrp png_ptr, png_bytep row, png_bytep dsp_row)
#endif
#ifdef PNG_READ_TRANSFORMS_SUPPORTED
- if (png_ptr->transformations || png_ptr->num_palette_max >= 0)
+ if (png_ptr->transformations
+# ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
+ || png_ptr->num_palette_max >= 0
+# endif
+ )
png_do_read_transformations(png_ptr, &row_info);
#endif
--
2.43.0.1.g128ba678c3

4
media/libpng/LICENSE
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@ -4,8 +4,8 @@ COPYRIGHT NOTICE, DISCLAIMER, and LICENSE
PNG Reference Library License version 2
---------------------------------------
* Copyright (c) 1995-2022 The PNG Reference Library Authors.
* Copyright (c) 2018-2022 Cosmin Truta.
* Copyright (c) 1995-2024 The PNG Reference Library Authors.
* Copyright (c) 2018-2024 Cosmin Truta.
* Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson.
* Copyright (c) 1996-1997 Andreas Dilger.
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.

162
media/libpng/README
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@ -1,57 +1,88 @@
README for libpng version 1.6.39
README for libpng version 1.6.42
================================
See the note about version numbers near the top of png.h.
See INSTALL for instructions on how to install libpng.
See the note about version numbers near the top of `png.h`.
See `INSTALL` for instructions on how to install libpng.
Libpng comes in several distribution formats. Get libpng-*.tar.gz or
libpng-*.tar.xz if you want UNIX-style line endings in the text files,
or lpng*.7z or lpng*.zip if you want DOS-style line endings.
Libpng comes in several distribution formats. Get `libpng-*.tar.gz`
or `libpng-*.tar.xz` if you want UNIX-style line endings in the text
files, or `lpng*.7z` 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 extensive use and testing since mid-1995. By late 1997 it had
finally gotten to the stage where there hadn't been significant
changes to the API in some time, and people have a bad feeling about
libraries with versions < 1.0. Version 1.0.0 was released in
March 1998.
For a detailed description on using libpng, read `libpng-manual.txt`.
For examples of libpng in a program, see `example.c` and `pngtest.c`.
For usage information and restrictions (what little they are) on libpng,
see `png.h`. For a description on using zlib (the compression library
used by libpng) and zlib's restrictions, see `zlib.h`.
****
Note that some of the changes to the png_info structure render this
You should use zlib 1.0.4 or later to run this, but it _may_ work with
versions as old as zlib 0.95. Even so, there are bugs in older zlib
versions which can cause the output of invalid compression streams for
some images.
You should also note that zlib is a compression library that is useful
for more things than just PNG files. You can use zlib as a drop-in
replacement for `fread()` and `fwrite()`, if you are so inclined.
zlib should be available at the same place that libpng is, or at
https://zlib.net .
You may also want a copy of the PNG specification. It is available
as an RFC, a W3C Recommendation, and an ISO/IEC Standard. You can find
these at http://www.libpng.org/pub/png/pngdocs.html .
This code is currently being archived at https://libpng.sourceforge.io
in the download area, and at http://libpng.download/src .
This release, based in a large way on Glenn's, Guy's and Andreas'
earlier work, was created and will be supported by myself and the PNG
development group.
Send comments, corrections and commendations to `png-mng-implement`
at `lists.sourceforge.net`. (Subscription is required; visit
https://lists.sourceforge.net/lists/listinfo/png-mng-implement
to subscribe.)
Send general questions about the PNG specification to `png-mng-misc`
at `lists.sourceforge.net`. (Subscription is required; visit
https://lists.sourceforge.net/lists/listinfo/png-mng-misc
to subscribe.)
Historical notes
----------------
The libpng library has been in extensive use and testing since mid-1995.
Version 0.89, published a year later, was the first official release.
By late 1997, it had finally gotten to the stage where there hadn't
been significant changes to the API in some time, and people have a bad
feeling about libraries with versions below 1.0. Version 1.0.0 was
released in March 1998.
Note that some of the changes to the `png_info` structure render this
version of the library binary incompatible with libpng-0.89 or
earlier versions if you are using a shared library. The type of the
"filler" parameter for png_set_filler() has changed from png_byte to
png_uint_32, which will affect shared-library applications that use
this function.
`filler` parameter for `png_set_filler()` has changed from `png_byte`
to `png_uint_32`, which will affect shared-library applications that
use this function.
To avoid problems with changes to the internals of the png info_struct,
To avoid problems with changes to the internals of the `info_struct`,
new APIs have been made available in 0.95 to avoid direct application
access to info_ptr. These functions are the png_set_<chunk> and
png_get_<chunk> functions. These functions should be used when
accessing/storing the info_struct data, rather than manipulating it
access to `info_ptr`. These functions are the `png_set_<chunk>` and
`png_get_<chunk>` functions. These functions should be used when
accessing/storing the `info_struct` data, rather than manipulating it
directly, to avoid such problems in the future.
It is important to note that the APIs did not make current programs
that access the info struct directly incompatible with the new
library, through libpng-1.2.x. In libpng-1.4.x, which was meant to
be a transitional release, members of the png_struct and the
info_struct can still be accessed, but the compiler will issue a
be a transitional release, members of the `png_struct` and the
`info_struct` can still be accessed, but the compiler will issue a
warning about deprecated usage. Since libpng-1.5.0, direct access
to these structs is not allowed, and the definitions of the structs
reside in private pngstruct.h and pnginfo.h header files that are not
accessible to applications. It is strongly suggested that new
programs use the new APIs (as shown in example.c and pngtest.c), and
older programs be converted to the new format, to facilitate upgrades
in the future.
****
Additions since 0.90 include the ability to compile libpng as a
Windows DLL, and new APIs for accessing data in the info struct.
Experimental functions include the ability to set weighting and cost
factors for row filter selection, direct reads of integers from buffers
on big-endian processors that support misaligned data access, faster
methods of doing alpha composition, and more accurate 16->8 bit color
conversion.
reside in private `pngstruct.h` and `pnginfo.h` header files that are
not accessible to applications. It is strongly suggested that new
programs use the new APIs (as shown in `example.c` and `pngtest.c`),
and older programs be converted to the new format, to facilitate
upgrades in the future.
The additions since 0.89 include the ability to read from a PNG stream
which has had some (or all) of the signature bytes read by the calling
@ -61,50 +92,17 @@ the library action on the detection of chunk CRC errors. It is possible
to set different actions based on whether the CRC error occurred in a
critical or an ancillary chunk.
For a detailed description on using libpng, read libpng-manual.txt.
For examples of libpng in a program, see example.c and pngtest.c. For
usage information and restrictions (what little they are) on libpng,
see png.h. For a description on using zlib (the compression library
used by libpng) and zlib's restrictions, see zlib.h
The additions since 0.90 include the ability to compile libpng as a
Windows DLL, and new APIs for accessing data in the `info_struct`.
Experimental functions included the ability to set weighting and cost
factors for row filter selection, direct reads of integers from buffers
on big-endian processors that support misaligned data access, faster
methods of doing alpha composition, and more accurate 16-to-8 bit color
conversion. Some of these experimental functions, such as the weighted
filter heuristics, have since been removed.
I have included a general makefile, as well as several machine and
compiler specific ones, but you may have to modify one for your own
needs.
You should use zlib 1.0.4 or later to run this, but it MAY work with
versions as old as zlib 0.95. Even so, there are bugs in older zlib
versions which can cause the output of invalid compression streams for
some images.
You should also note that zlib is a compression library that is useful
for more things than just PNG files. You can use zlib as a drop-in
replacement for fread() and fwrite(), if you are so inclined.
zlib should be available at the same place that libpng is, or at
https://zlib.net.
You may also want a copy of the PNG specification. It is available
as an RFC, a W3C Recommendation, and an ISO/IEC Standard. You can find
these at http://www.libpng.org/pub/png/pngdocs.html .
This code is currently being archived at libpng.sourceforge.io in the
[DOWNLOAD] area, and at http://libpng.download/src .
This release, based in a large way on Glenn's, Guy's and Andreas'
earlier work, was created and will be supported by myself and the PNG
development group.
Send comments/corrections/commendations to png-mng-implement at
lists.sourceforge.net (subscription required; visit
https://lists.sourceforge.net/lists/listinfo/png-mng-implement
to subscribe).
Send general questions about the PNG specification to png-mng-misc
at lists.sourceforge.net (subscription required; visit
https://lists.sourceforge.net/lists/listinfo/png-mng-misc to
subscribe).
Files in this distribution:
Files included in this distribution
-----------------------------------
ANNOUNCE => Announcement of this version, with recent changes
AUTHORS => List of contributing authors
@ -153,7 +151,7 @@ Files in this distribution:
arm-neon/ => Optimized code for the ARM-NEON platform
mips-msa/ => Optimized code for the MIPS-MSA platform
powerpc-vsx/ => Optimized code for the POWERPC-VSX platform
examples/ => Example programs
examples/ => Examples of libpng usage
gregbook/ => Source code for PNG reading and writing, from
"PNG: The Definitive Guide" by Greg Roelofs,
O'Reilly, 1999

6
media/libpng/apng.patch
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@ -596,7 +596,7 @@ diff --git a/pngpriv.h b/pngpriv.h
@@ -636,8 +636,12 @@
#define PNG_HAVE_PNG_SIGNATURE 0x1000U
#define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000U /* Have another chunk after IDAT */
/* 0x4000U (unused) */
#define PNG_WROTE_eXIf 0x4000U
#define PNG_IS_READ_STRUCT 0x8000U /* Else is a write struct */
+#ifdef PNG_APNG_SUPPORTED
+#define PNG_HAVE_acTL 0x10000U
@ -1370,9 +1370,9 @@ diff --git a/pngwrite.c b/pngwrite.c
+#endif
+
#ifdef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
if (png_ptr->num_palette_max > png_ptr->num_palette)
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE &&
png_ptr->num_palette_max >= png_ptr->num_palette)
png_benign_error(png_ptr, "Wrote palette index exceeding num_palette");
#endif
@@ -2391,5 +2400,43 @@ png_image_write_to_file(png_imagep image
return 0;
}

2
media/libpng/arm/linux.c
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@ -1,6 +1,5 @@
/* contrib/arm-neon/linux.c
*
* Last changed in libpng 1.6.31 [July 27, 2017]
* Copyright (c) 2014, 2017 Glenn Randers-Pehrson
* Written by John Bowler, 2014, 2017.
*
@ -19,6 +18,7 @@
* This code is strict ANSI-C and is probably moderately portable; it does
* however use <stdio.h> and it assumes that /proc/cpuinfo is never localized.
*/
#include <stdio.h>
static int

143
media/libpng/libpng-manual.txt
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@ -1,6 +1,6 @@
libpng-manual.txt - A description on how to use and modify libpng
Copyright (c) 2018-2022 Cosmin Truta
Copyright (c) 2018-2024 Cosmin Truta
Copyright (c) 1998-2018 Glenn Randers-Pehrson
This document is released under the libpng license.
@ -9,9 +9,9 @@ libpng-manual.txt - A description on how to use and modify libpng
Based on:
libpng version 1.6.36, December 2018, through 1.6.39 - November 2022
libpng version 1.6.36, December 2018, through 1.6.42 - January 2024
Updated and distributed by Cosmin Truta
Copyright (c) 2018-2022 Cosmin Truta
Copyright (c) 2018-2024 Cosmin Truta
libpng versions 0.97, January 1998, through 1.6.35 - July 2018
Updated and distributed by Glenn Randers-Pehrson
@ -357,7 +357,7 @@ Customizing libpng.
return ERROR;
}
is_png = !png_sig_cmp(header, 0, number);
is_png = (png_sig_cmp(header, 0, number) == 0);
if (!is_png)
{
return NOT_PNG;
@ -385,8 +385,7 @@ create the structure, so your application should check for that.
if (!info_ptr)
{
png_destroy_read_struct(&png_ptr,
(png_infopp)NULL, (png_infopp)NULL);
png_destroy_read_struct(&png_ptr, NULL, NULL);
return ERROR;
}
@ -419,14 +418,13 @@ free any memory.
if (setjmp(png_jmpbuf(png_ptr)))
{
png_destroy_read_struct(&png_ptr, &info_ptr,
&end_info);
png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
fclose(fp);
return ERROR;
}
Pass (png_infopp)NULL instead of &end_info if you didn't create
an end_info structure.
Pass NULL instead of &end_info if you didn't create an end_info
structure.
If you would rather avoid the complexity of setjmp/longjmp issues,
you can compile libpng with PNG_NO_SETJMP, in which case
@ -496,7 +494,7 @@ You can set up a callback function to handle any unknown chunks in the
input stream. You must supply the function
read_chunk_callback(png_structp png_ptr,
png_unknown_chunkp chunk);
png_unknown_chunkp chunk)
{
/* The unknown chunk structure contains your
chunk data, along with similar data for any other
@ -547,9 +545,9 @@ a progress meter or the like. It's demonstrated in pngtest.c.
You must supply a function
void read_row_callback(png_structp png_ptr,
png_uint_32 row, int pass);
png_uint_32 row, int pass)
{
/* put your code here */
/* put your code here */
}
(You can give it another name that you like instead of "read_row_callback")
@ -1181,21 +1179,21 @@ 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/(sizeof (png_byte)))
png_error (png_ptr,
png_error(png_ptr,
"Image is too tall to process in memory");
if (width > PNG_UINT_32_MAX/pixel_size)
png_error (png_ptr,
png_error(png_ptr,
"Image is too wide to process in memory");
row_pointers = png_malloc(png_ptr,
height*(sizeof (png_bytep)));
for (int i=0; i<height, i++)
row_pointers[i]=NULL; /* security precaution */
for (int i = 0; i < height, i++)
row_pointers[i] = NULL; /* security precaution */
for (int i=0; i<height, i++)
row_pointers[i]=png_malloc(png_ptr,
for (int i = 0; i < height, i++)
row_pointers[i] = png_malloc(png_ptr,
width*pixel_size);
png_set_rows(png_ptr, info_ptr, &row_pointers);
@ -1205,14 +1203,14 @@ row_pointers[i] to point into the proper places in your block, but first
be sure that your platform is able to allocate such a large buffer:
/* Guard against integer overflow */
if (height > PNG_SIZE_MAX/(width*pixel_size)) {
png_error(png_ptr,"image_data buffer would be too large");
}
if (height > PNG_SIZE_MAX/(width*pixel_size))
png_error(png_ptr, "image_data buffer would be too large");
png_bytep buffer=png_malloc(png_ptr,height*width*pixel_size);
png_bytep buffer = png_malloc(png_ptr,
height*width*pixel_size);
for (int i=0; i<height, i++)
row_pointers[i]=buffer+i*width*pixel_size;
for (int i = 0; i < height, i++)
row_pointers[i] = buffer + i*width*pixel_size;
png_set_rows(png_ptr, info_ptr, &row_pointers);
@ -1465,25 +1463,24 @@ png_set_rgb_to_gray()).
non-paletted images (PNG_INFO_tRNS)
png_get_eXIf_1(png_ptr, info_ptr, &num_exif, &exif);
(PNG_INFO_eXIf)
exif - Exif profile (array of png_byte)
(PNG_INFO_eXIf)
png_get_hIST(png_ptr, info_ptr, &hist);
(PNG_INFO_hIST)
hist - histogram of palette (array of
png_uint_16)
png_uint_16) (PNG_INFO_hIST)
png_get_tIME(png_ptr, info_ptr, &mod_time);
mod_time - time image was last modified
(PNG_VALID_tIME)
(PNG_INFO_tIME)
png_get_bKGD(png_ptr, info_ptr, &background);
background - background color (of type
png_color_16p) (PNG_VALID_bKGD)
png_color_16p) (PNG_INFO_bKGD)
valid 16-bit red, green and blue
values, regardless of color_type
@ -1743,13 +1740,13 @@ grayscale images with bit depths of 2 or 4 or if there is a multiple-image
viewing application that wishes to treat all images in the same way.
if (color_type == PNG_COLOR_TYPE_PALETTE)
png_set_palette_to_rgb(png_ptr);
png_set_palette_to_rgb(png_ptr);
if (png_get_valid(png_ptr, info_ptr,
PNG_INFO_tRNS)) png_set_tRNS_to_alpha(png_ptr);
if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS))
png_set_tRNS_to_alpha(png_ptr);
if (color_type == PNG_COLOR_TYPE_GRAY &&
bit_depth < 8) png_set_expand_gray_1_2_4_to_8(png_ptr);
if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
png_set_expand_gray_1_2_4_to_8(png_ptr);
The first two functions are actually aliases for png_set_expand(), added
in libpng version 1.0.4, with the function names expanded to improve code
@ -1764,18 +1761,20 @@ png_set_expand(); however, the resultant channels have 16 bits rather than 8.
Use this when the output color or gray channels are made linear to avoid fairly
severe accuracy loss.
if (bit_depth < 16)
png_set_expand_16(png_ptr);
if (bit_depth < 16)
png_set_expand_16(png_ptr);
PNG can have files with 16 bits per channel. If you only can handle
8 bits per channel, this will strip the pixels down to 8-bit.
if (bit_depth == 16)
{
#if PNG_LIBPNG_VER >= 10504
png_set_scale_16(png_ptr);
#else
png_set_strip_16(png_ptr);
#endif
}
(The more accurate "png_set_scale_16()" API became available in libpng version
1.5.4).
@ -1901,7 +1900,7 @@ Note that png_set_filler() does not change the color type. If you want
to do that, you can add a true alpha channel with
if (color_type == PNG_COLOR_TYPE_RGB ||
color_type == PNG_COLOR_TYPE_GRAY)
color_type == PNG_COLOR_TYPE_GRAY)
png_set_add_alpha(png_ptr, filler, PNG_FILLER_AFTER);
where "filler" contains the alpha value to assign to each pixel.
@ -1926,7 +1925,7 @@ with alpha.
if (color_type == PNG_COLOR_TYPE_RGB ||
color_type == PNG_COLOR_TYPE_RGB_ALPHA)
png_set_rgb_to_gray(png_ptr, error_action,
double red_weight, double green_weight);
(double)red_weight, (double)green_weight);
error_action = 1: silently do the conversion
@ -1949,8 +1948,8 @@ In the corresponding fixed point API the red_weight and green_weight values are
simply scaled by 100,000:
png_set_rgb_to_gray(png_ptr, error_action,
png_fixed_point red_weight,
png_fixed_point green_weight);
(png_fixed_point)red_weight,
(png_fixed_point)green_weight);
If you have set error_action = 1 or 2, you can
later check whether the image really was gray, after processing
@ -2186,9 +2185,8 @@ do your own check for number_of_rows*width*pixel_size if you are using
a multiple-row buffer:
/* Guard against integer overflow */
if (number_of_rows > PNG_SIZE_MAX/(width*pixel_size)) {
png_error(png_ptr,"image_data buffer would be too large");
}
if (number_of_rows > PNG_SIZE_MAX/(width*pixel_size))
png_error(png_ptr, "image_data buffer would be too large");
Remember: Before you call png_read_update_info(), the png_get_*()
functions return the values corresponding to the original PNG image.
@ -2408,12 +2406,11 @@ separate.
if (!end_info)
{
png_destroy_read_struct(&png_ptr, &info_ptr,
(png_infopp)NULL);
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
return ERROR;
}
png_read_end(png_ptr, end_info);
png_read_end(png_ptr, end_info);
If you are not interested, you should still call png_read_end()
but you can pass NULL, avoiding the need to create an end_info structure.
@ -2421,7 +2418,7 @@ If you do this, libpng will not process any chunks after IDAT other than
skipping over them and perhaps (depending on whether you have called
png_set_crc_action) checking their CRCs while looking for the IEND chunk.
png_read_end(png_ptr, (png_infop)NULL);
png_read_end(png_ptr, NULL);
If you don't call png_read_end(), then your file pointer will be
left pointing to the first chunk after the last IDAT, which is probably
@ -2430,13 +2427,11 @@ the PNG datastream.
When you are done, you can free all memory allocated by libpng like this:
png_destroy_read_struct(&png_ptr, &info_ptr,
&end_info);
png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
or, if you didn't create an end_info structure,
png_destroy_read_struct(&png_ptr, &info_ptr,
(png_infopp)NULL);
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
It is also possible to individually free the info_ptr members that
point to libpng-allocated storage with the following function:
@ -2556,15 +2551,13 @@ png_infop info_ptr;
if (!info_ptr)
{
png_destroy_read_struct(&png_ptr,
(png_infopp)NULL, (png_infopp)NULL);
png_destroy_read_struct(&png_ptr, NULL, NULL);
return ERROR;
}
if (setjmp(png_jmpbuf(png_ptr)))
{
png_destroy_read_struct(&png_ptr, &info_ptr,
(png_infopp)NULL);
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
return ERROR;
}
@ -2597,8 +2590,7 @@ png_infop info_ptr;
{
if (setjmp(png_jmpbuf(png_ptr)))
{
png_destroy_read_struct(&png_ptr, &info_ptr,
(png_infopp)NULL);
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
return ERROR;
}
@ -2763,8 +2755,7 @@ both "png_ptr"; you can call them anything you like, such as
png_infop info_ptr = png_create_info_struct(png_ptr);
if (!info_ptr)
{
png_destroy_write_struct(&png_ptr,
(png_infopp)NULL);
png_destroy_write_struct(&png_ptr, NULL);
return ERROR;
}
@ -2790,7 +2781,7 @@ section below for more information on the libpng error handling.
if (setjmp(png_jmpbuf(png_ptr)))
{
png_destroy_write_struct(&png_ptr, &info_ptr);
png_destroy_write_struct(&png_ptr, &info_ptr);
fclose(fp);
return ERROR;
}
@ -2844,9 +2835,9 @@ a progress meter or the like. It's demonstrated in pngtest.c.
You must supply a function
void write_row_callback(png_structp png_ptr, png_uint_32 row,
int pass);
int pass)
{
/* put your code here */
/* put your code here */
}
(You can give it another name that you like instead of "write_row_callback")
@ -3116,8 +3107,8 @@ width, height, bit_depth, and color_type must be the same in each call.
png_set_eXIf_1(png_ptr, info_ptr, num_exif, exif);
exif - Exif profile (array of
png_byte) (PNG_INFO_eXIf)
exif - Exif profile (array of png_byte)
(PNG_INFO_eXIf)
png_set_hIST(png_ptr, info_ptr, hist);
@ -3127,12 +3118,12 @@ width, height, bit_depth, and color_type must be the same in each call.
png_set_tIME(png_ptr, info_ptr, mod_time);
mod_time - time image was last modified
(PNG_VALID_tIME)
(PNG_INFO_tIME)
png_set_bKGD(png_ptr, info_ptr, background);
background - background color (of type
png_color_16p) (PNG_VALID_bKGD)
png_color_16p) (PNG_INFO_bKGD)
png_set_text(png_ptr, info_ptr, text_ptr, num_text);
@ -4218,7 +4209,7 @@ png_create_read_struct_2() or png_create_write_struct_2() to register your
own functions as described above. These functions also provide a void
pointer that can be retrieved via
mem_ptr=png_get_mem_ptr(png_ptr);
mem_ptr = png_get_mem_ptr(png_ptr);
Your replacement memory functions must have prototypes as follows:
@ -4515,7 +4506,7 @@ When PNG_DEBUG is defined but is zero, the macros aren't defined, but you
can still use PNG_DEBUG to control your own debugging:
#ifdef PNG_DEBUG
fprintf(stderr, ...
fprintf(stderr, ...);
#endif
When PNG_DEBUG = 1, the macros are defined, but only png_debug statements
@ -4692,7 +4683,7 @@ deprecated since libpng-1.0.16 and libpng-1.2.6.
The function
png_check_sig(sig, num)
was replaced with
!png_sig_cmp(sig, 0, num)
png_sig_cmp(sig, 0, num) == 0
It has been deprecated since libpng-0.90.
The function
@ -4756,8 +4747,8 @@ png_get_mmx_bitdepth_threshold(), png_get_mmx_rowbytes_threshold(),
png_set_asm_flags(), and png_mmx_supported()
We removed the obsolete png_check_sig(), png_memcpy_check(), and
png_memset_check() functions. Instead use !png_sig_cmp(), memcpy(),
and memset(), respectively.
png_memset_check() functions. Instead use png_sig_cmp() == 0,
memcpy(), and memset(), respectively.
The function png_set_gray_1_2_4_to_8() was removed. It has been
deprecated since libpng-1.0.18 and 1.2.9, when it was replaced with
@ -5239,7 +5230,7 @@ changed, and is unaffected by conditional compilation macros. It is the
best choice for use in configure scripts for detecting the presence of any
libpng version since 0.88. In an autoconf "configure.in" you could use
AC_CHECK_LIB(png, png_get_io_ptr, ...
AC_CHECK_LIB(png, png_get_io_ptr, ...)
XV. Source code repository
@ -5248,12 +5239,12 @@ control. The git repository was built from old libpng-x.y.z.tar.gz files
going back to version 0.70. You can access the git repository (read only)
at
https://github.com/glennrp/libpng or
https://github.com/pnggroup/libpng or
https://git.code.sf.net/p/libpng/code.git
or you can browse it with a web browser at
https://github.com/glennrp/libpng or
https://github.com/pnggroup/libpng or
https://sourceforge.net/p/libpng/code/ci/libpng16/tree/
Patches can be sent to png-mng-implement at lists.sourceforge.net or
@ -5263,7 +5254,7 @@ uploaded to the libpng bug tracker at
or as a "pull request" to
https://github.com/glennrp/libpng/pulls
https://github.com/pnggroup/libpng/pulls
We also accept patches built from the tar or zip distributions, and
simple verbal descriptions of bug fixes, reported either to the

525
media/libpng/mips/filter_mmi_inline_assembly.c Normal file
Просмотреть файл

@ -0,0 +1,525 @@
/* filter_mmi_intrinsics.c - MMI optimized filter functions
*
* Copyright (c) 2024 Cosmin Truta
* Written by zhanglixia and guxiwei, 2023
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*/
#include "../pngpriv.h"
#ifdef PNG_READ_SUPPORTED
#if PNG_MIPS_MMI_IMPLEMENTATION == 2 /* Inline Assembly */
/* Functions in this file look at most 3 pixels (a,b,c) to predict the 4th (d).
* They're positioned like this:
* prev: c b
* row: a d
* The Sub filter predicts d=a, Avg d=(a+b)/2, and Paeth predicts d to be
* whichever of a, b, or c is closest to p=a+b-c.
*/
void png_read_filter_row_up_mmi(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
{
int istop = row_info->rowbytes;
double rp,pp;
__asm__ volatile (
"1: \n\t"
"ldc1 %[rp], 0x00(%[row]) \n\t"
"ldc1 %[pp], 0x00(%[prev_row]) \n\t"
"paddb %[rp], %[rp], %[pp] \n\t"
"sdc1 %[rp], 0x00(%[row]) \n\t"
"daddiu %[row], %[row], 0x08 \n\t"
"daddiu %[prev_row], %[prev_row], 0x08 \n\t"
"daddiu %[istop], %[istop], -0x08 \n\t"
"bgtz %[istop], 1b \n\t"
: [rp]"=&f"(rp), [pp]"=&f"(pp)
: [row]"r"(row), [prev_row]"r"(prev_row),
[istop]"r"(istop)
: "memory"
);
}
void png_read_filter_row_sub3_mmi(png_row_infop row_info, png_bytep row,
png_const_bytep prev)
{
int istop = row_info->rowbytes;
double rp, pp, dest;
double eight, sixteen, twenty_four, forty_eight;
double tmp0;
double ftmp[2];
__asm__ volatile (
"li %[tmp0], 0x08 \n\t"
"dmtc1 %[tmp0], %[eight] \n\t"
"li %[tmp0], 0x10 \n\t"
"dmtc1 %[tmp0], %[sixteen] \n\t"
"li %[tmp0], 0x18 \n\t"
"dmtc1 %[tmp0], %[twenty_four] \n\t"
"li %[tmp0], 0x30 \n\t"
"dmtc1 %[tmp0], %[forty_eight] \n\t"
"xor %[dest], %[dest], %[dest] \n\t"
"1: \n\t"
"gsldrc1 %[rp], 0x00(%[row]) \n\t"
"gsldlc1 %[rp], 0x07(%[row]) \n\t"
"gsldrc1 %[pp], 0x08(%[row]) \n\t"
"gsldlc1 %[pp], 0x0f(%[row]) \n\t"
"paddb %[ftmp0], %[dest], %[rp] \n\t"
"swc1 %[ftmp0], 0x00(%[row]) \n\t"
"dsrl %[ftmp1], %[rp], %[twenty_four] \n\t"
"paddb %[dest], %[ftmp1], %[ftmp0] \n\t"
"gsswrc1 %[dest], 0x03(%[row]) \n\t"
"gsswlc1 %[dest], 0x06(%[row]) \n\t"
"dsrl %[ftmp0], %[rp], %[forty_eight] \n\t"
"dsll %[ftmp1], %[pp], %[sixteen] \n\t"
"or %[ftmp0], %[ftmp0], %[ftmp1] \n\t"
"paddb %[dest], %[dest], %[ftmp0] \n\t"
"gsswrc1 %[dest], 0x06(%[row]) \n\t"
"gsswlc1 %[dest], 0x09(%[row]) \n\t"
"dsrl %[ftmp0], %[pp], %[eight] \n\t"
"paddb %[dest], %[dest], %[ftmp0] \n\t"
"gsswrc1 %[dest], 0x09(%[row]) \n\t"
"daddiu %[row], %[row], 0x0c \n\t"
"daddiu %[istop], %[istop], -0x0c \n\t"
"bgtz %[istop], 1b \n\t"
: [rp]"=&f"(rp), [pp]"=&f"(pp), [dest]"=&f"(dest),
[tmp0]"=&r"(tmp0), [ftmp0]"=&f"(ftmp[0]),
[ftmp1]"=&f"(ftmp[1]), [eight]"=&f"(eight),
[sixteen]"=&f"(sixteen), [twenty_four]"=&f"(twenty_four),
[forty_eight]"=&f"(forty_eight)
: [row]"r"(row), [istop]"r"(istop)
: "memory"
);
PNG_UNUSED(prev)
}
void png_read_filter_row_sub4_mmi(png_row_infop row_info, png_bytep row,
png_const_bytep prev)
{
/* The Sub filter predicts each pixel as the previous pixel, a.
* There is no pixel to the left of the first pixel. It's encoded directly.
* That works with our main loop if we just say that left pixel was zero.
*/
int istop = row_info->rowbytes;
double rp,pp;
__asm__ volatile (
"1: \n\t"
"lwc1 %[pp], 0x00(%[row]) \n\t"
"lwc1 %[rp], 0x04(%[row]) \n\t"
"paddb %[rp], %[rp], %[pp] \n\t"
"swc1 %[rp], 0x04(%[row]) \n\t"
"daddiu %[row], %[row], 0x04 \n\t"
"daddiu %[istop], %[istop], -0x04 \n\t"
"bgtz %[istop], 1b \n\t"
: [rp]"=&f"(rp), [pp]"=&f"(pp)
: [row]"r"(row), [istop]"r"(istop)
: "memory"
);
PNG_UNUSED(prev)
}
void png_read_filter_row_avg3_mmi(png_row_infop row_info, png_bytep row,
png_const_bytep prev)
{
int istop = row_info->rowbytes;
double rp, pp, rp1, pp1;
double tmp0;
double ftmp[3];
double one, dest;
double eight, sixteen, twenty_four, forty_eight;
__asm__ volatile (
"li %[tmp0], 0x08 \n\t"
"dmtc1 %[tmp0], %[eight] \n\t"
"li %[tmp0], 0x10 \n\t"
"dmtc1 %[tmp0], %[sixteen] \n\t"
"li %[tmp0], 0x18 \n\t"
"dmtc1 %[tmp0], %[twenty_four] \n\t"
"li %[tmp0], 0x30 \n\t"
"dmtc1 %[tmp0], %[forty_eight] \n\t"
"xor %[dest], %[dest], %[dest] \n\t"
"li %[tmp0], 0x01 \n\t"
"ins %[tmp0], %[tmp0], 8, 8 \n\t"
"dmtc1 %[tmp0], %[one] \n\t"
"pshufh %[one], %[one], %[dest] \n\t"
"1: \n\t"
"gsldrc1 %[rp], 0x00(%[row]) \n\t"
"gsldlc1 %[rp], 0x07(%[row]) \n\t"
"gsldrc1 %[pp], 0x00(%[prev]) \n\t"
"gsldlc1 %[pp], 0x07(%[prev]) \n\t"
"gsldrc1 %[rp1], 0x08(%[row]) \n\t"
"gsldlc1 %[rp1], 0x0f(%[row]) \n\t"
"gsldrc1 %[pp1], 0x08(%[prev]) \n\t"
"gsldlc1 %[pp1], 0x0f(%[prev]) \n\t"
"xor %[ftmp0], %[pp], %[dest] \n\t"
"pavgb %[ftmp1], %[pp], %[dest] \n\t"
"and %[ftmp0], %[ftmp0], %[one] \n\t"
"psubb %[ftmp1], %[ftmp1], %[ftmp0] \n\t"
"paddb %[dest], %[rp], %[ftmp1] \n\t"
"swc1 %[dest], 0x00(%[row]) \n\t"
"dsrl %[ftmp0], %[rp], %[twenty_four] \n\t"
"dsrl %[ftmp1], %[pp], %[twenty_four] \n\t"
"xor %[ftmp2], %[ftmp1], %[dest] \n\t"
"pavgb %[ftmp1], %[ftmp1], %[dest] \n\t"
"and %[ftmp2], %[ftmp2], %[one] \n\t"
"psubb %[ftmp1], %[ftmp1], %[ftmp2] \n\t"
"paddb %[dest], %[ftmp0], %[ftmp1] \n\t"
"gsswrc1 %[dest], 0x03(%[row]) \n\t"
"gsswlc1 %[dest], 0x06(%[row]) \n\t"
"dsrl %[ftmp0], %[rp], %[forty_eight] \n\t"
"dsll %[ftmp1], %[rp1], %[sixteen] \n\t"
"or %[ftmp0], %[ftmp0], %[ftmp1] \n\t"
"dsrl %[ftmp2], %[pp], %[forty_eight] \n\t"
"dsll %[ftmp1], %[pp1], %[sixteen] \n\t"
"or %[ftmp1], %[ftmp2], %[ftmp1] \n\t"
"xor %[ftmp2], %[ftmp1], %[dest] \n\t"
"pavgb %[ftmp1], %[ftmp1], %[dest] \n\t"
"and %[ftmp2], %[ftmp2], %[one] \n\t"
"psubb %[ftmp1], %[ftmp1], %[ftmp2] \n\t"
"paddb %[dest], %[ftmp0], %[ftmp1] \n\t"
"gsswrc1 %[dest], 0x06(%[row]) \n\t"
"gsswlc1 %[dest], 0x09(%[row]) \n\t"
"dsrl %[ftmp0], %[rp1], %[eight] \n\t"
"dsrl %[ftmp1], %[pp1], %[eight] \n\t"
"xor %[ftmp2], %[ftmp1], %[dest] \n\t"
"pavgb %[ftmp1], %[ftmp1], %[dest] \n\t"
"and %[ftmp2], %[ftmp2], %[one] \n\t"
"psubb %[ftmp1], %[ftmp1], %[ftmp2] \n\t"
"paddb %[dest], %[ftmp0], %[ftmp1] \n\t"
"gsswrc1 %[dest], 0x09(%[row]) \n\t"
"daddiu %[row], %[row], 0x0c \n\t"
"daddiu %[prev], %[prev], 0x0c \n\t"
"daddiu %[istop], %[istop], -0x0c \n\t"
"bgtz %[istop], 1b \n\t"
: [rp]"=&f"(rp), [pp]"=&f"(pp), [rp1]"=&f"(rp1),
[pp1]"=&f"(pp1), [tmp0]"=&r"(tmp0), [ftmp0]"=&f"(ftmp[0]),
[ftmp1]"=&f"(ftmp[1]), [ftmp2]"=&f"(ftmp[2]), [one]"=&f"(one),
[dest]"=&f"(dest), [eight]"=&f"(eight), [sixteen]"=&f"(sixteen),
[twenty_four]"=&f"(twenty_four), [forty_eight]"=&f"(forty_eight)
: [row]"r"(row), [prev]"r"(prev), [istop]"r"(istop)
: "memory"
);
}
void png_read_filter_row_avg4_mmi(png_row_infop row_info, png_bytep row,
png_const_bytep prev)
{
int istop = row_info->rowbytes;
double rp,pp;
double dest;
double ftmp[2];
double tmp;
__asm__ volatile (
"xor %[dest], %[dest], %[dest] \n\t"
"li %[tmp], 0x01 \n\t"
"ins %[tmp], %[tmp], 8, 8 \n\t"
"dmtc1 %[tmp], %[ftmp1] \n\t"
"pshufh %[ftmp1], %[ftmp1], %[dest] \n\t"
"1: \n\t"
"lwc1 %[rp], 0x00(%[row]) \n\t"
"lwc1 %[pp], 0x00(%[prev]) \n\t"
"xor %[ftmp0], %[pp], %[dest] \n\t"
"pavgb %[pp], %[pp], %[dest] \n\t"
"and %[ftmp0], %[ftmp0], %[ftmp1] \n\t"
"psubb %[pp], %[pp], %[ftmp0] \n\t"
"paddb %[dest], %[rp], %[pp] \n\t"
"swc1 %[dest], 0x00(%[row]) \n\t"
"daddiu %[row], %[row], 0x04 \n\t"
"daddiu %[prev], %[prev], 0x04 \n\t"
"daddiu %[istop], %[istop], -0x04 \n\t"
"bgtz %[istop], 1b \n\t"
: [rp]"=&f"(rp), [pp]"=&f"(pp), [ftmp0]"=&f"(ftmp[0]),
[ftmp1]"=&f"(ftmp[1]), [dest]"=&f"(dest), [tmp]"=&r"(tmp)
: [row]"r"(row), [prev]"r"(prev), [istop]"r"(istop)
: "memory"
);
}
void png_read_filter_row_paeth3_mmi(png_row_infop row_info, png_bytep row,
png_const_bytep prev)
{
/* Paeth tries to predict pixel d using the pixel to the left of it, a,
* and two pixels from the previous row, b and c:
* prev: c b
* row: a d
* The Paeth function predicts d to be whichever of a, b, or c is nearest to
* p=a+b-c.
*
* The first pixel has no left context, and so uses an Up filter, p = b.
* This works naturally with our main loop's p = a+b-c if we force a and c
* to zero.
* Here we zero b and d, which become c and a respectively at the start of
* the loop.
*/
int istop = row_info->rowbytes;
double rp, pp, rp1, pp1, zero;
double a, b, c, d, pa, pb, pc;
double tmp0;
double ftmp[3];
double eight, sixteen, twenty_four, forty_eight;
__asm__ volatile (
"xor %[a], %[a], %[a] \n\t"
"xor %[c], %[c], %[c] \n\t"
"xor %[zero], %[zero], %[zero] \n\t"
"li %[tmp0], 0x08 \n\t"
"dmtc1 %[tmp0], %[eight] \n\t"
"li %[tmp0], 0x10 \n\t"
"dmtc1 %[tmp0], %[sixteen] \n\t"
"li %[tmp0], 0x18 \n\t"
"dmtc1 %[tmp0], %[twenty_four] \n\t"
"li %[tmp0], 0x30 \n\t"
"dmtc1 %[tmp0], %[forty_eight] \n\t"
"1: \n\t"
"gsldrc1 %[rp], 0x00(%[row]) \n\t"
"gsldlc1 %[rp], 0x07(%[row]) \n\t"
"gsldrc1 %[pp], 0x00(%[prev]) \n\t"
"gsldlc1 %[pp], 0x07(%[prev]) \n\t"
"gsldrc1 %[rp1], 0x08(%[row]) \n\t"
"gsldlc1 %[rp1], 0x0f(%[row]) \n\t"
"gsldrc1 %[pp1], 0x08(%[prev]) \n\t"
"gsldlc1 %[pp1], 0x0f(%[prev]) \n\t"
"punpcklbh %[b], %[pp], %[zero] \n\t"
"punpcklbh %[d], %[rp], %[zero] \n\t"
"packushb %[ftmp0], %[c], %[c] \n\t"
"packushb %[ftmp1], %[a], %[a] \n\t"
"pasubub %[pa], %[pp], %[ftmp0] \n\t"
"pasubub %[pb], %[ftmp1], %[ftmp0] \n\t"
"psubh %[ftmp0], %[b], %[c] \n\t"
"psubh %[ftmp1], %[a], %[c] \n\t"
"paddh %[pc], %[ftmp0], %[ftmp1] \n\t"
"pcmpgth %[ftmp0], %[zero], %[pc] \n\t"
"xor %[pc], %[pc], %[ftmp0] \n\t"
"psubh %[pc], %[pc], %[ftmp0] \n\t"
"punpcklbh %[pa], %[pa], %[zero] \n\t"
"punpcklbh %[pb], %[pb], %[zero] \n\t"
"pcmpgth %[ftmp0], %[pa], %[pb] \n\t"
"and %[ftmp1], %[b], %[ftmp0] \n\t"
"pandn %[a], %[ftmp0], %[a] \n\t"
"or %[a], %[a], %[ftmp1] \n\t"
"pminsh %[pa], %[pa], %[pb] \n\t"
"pcmpgth %[ftmp0], %[pa], %[pc] \n\t"
"and %[ftmp1], %[c], %[ftmp0] \n\t"
"pandn %[a], %[ftmp0], %[a] \n\t"
"or %[a], %[a], %[ftmp1] \n\t"
"paddb %[a], %[a], %[d] \n\t"
"packushb %[d], %[a], %[a] \n\t"
"punpcklbh %[c], %[pp], %[zero] \n\t"
"swc1 %[d], 0x00(%[row]) \n\t"
"dsrl %[ftmp0], %[rp], %[twenty_four] \n\t"
"dsrl %[ftmp2], %[pp], %[twenty_four] \n\t"
"punpcklbh %[b], %[ftmp2], %[zero] \n\t"
"punpcklbh %[d], %[ftmp0], %[zero] \n\t"
"packushb %[ftmp0], %[c], %[c] \n\t"
"packushb %[ftmp1], %[a], %[a] \n\t"
"pasubub %[pa], %[ftmp2], %[ftmp0] \n\t"
"pasubub %[pb], %[ftmp1], %[ftmp0] \n\t"
"psubh %[ftmp0], %[b], %[c] \n\t"
"psubh %[ftmp1], %[a], %[c] \n\t"
"paddh %[pc], %[ftmp0], %[ftmp1] \n\t"
"pcmpgth %[ftmp0], %[zero], %[pc] \n\t"
"xor %[pc], %[pc], %[ftmp0] \n\t"
"psubh %[pc], %[pc], %[ftmp0] \n\t"
"punpcklbh %[pa], %[pa], %[zero] \n\t"
"punpcklbh %[pb], %[pb], %[zero] \n\t"
"pcmpgth %[ftmp0], %[pa], %[pb] \n\t"
"and %[ftmp1], %[b], %[ftmp0] \n\t"
"pandn %[a], %[ftmp0], %[a] \n\t"
"or %[a], %[a], %[ftmp1] \n\t"
"pminsh %[pa], %[pa], %[pb] \n\t"
"pcmpgth %[ftmp0], %[pa], %[pc] \n\t"
"and %[ftmp1], %[c], %[ftmp0] \n\t"
"pandn %[a], %[ftmp0], %[a] \n\t"
"or %[a], %[a], %[ftmp1] \n\t"
"paddb %[a], %[a], %[d] \n\t"
"packushb %[d], %[a], %[a] \n\t"
"punpcklbh %[c], %[ftmp2], %[zero] \n\t"
"gsswrc1 %[d], 0x03(%[row]) \n\t"
"gsswlc1 %[d], 0x06(%[row]) \n\t"
"dsrl %[ftmp0], %[rp], %[forty_eight] \n\t"
"dsll %[ftmp1], %[rp1], %[sixteen] \n\t"
"or %[ftmp0], %[ftmp0], %[ftmp1] \n\t"
"dsrl %[ftmp2], %[pp], %[forty_eight] \n\t"
"dsll %[ftmp1], %[pp1], %[sixteen] \n\t"
"or %[ftmp2], %[ftmp2], %[ftmp1] \n\t"
"punpcklbh %[b], %[ftmp2], %[zero] \n\t"
"punpcklbh %[d], %[ftmp0], %[zero] \n\t"
"packushb %[ftmp0], %[c], %[c] \n\t"
"packushb %[ftmp1], %[a], %[a] \n\t"
"pasubub %[pa], %[ftmp2], %[ftmp0] \n\t"
"pasubub %[pb], %[ftmp1], %[ftmp0] \n\t"
"psubh %[ftmp0], %[b], %[c] \n\t"
"psubh %[ftmp1], %[a], %[c] \n\t"
"paddh %[pc], %[ftmp0], %[ftmp1] \n\t"
"pcmpgth %[ftmp0], %[zero], %[pc] \n\t"
"xor %[pc], %[pc], %[ftmp0] \n\t"
"psubh %[pc], %[pc], %[ftmp0] \n\t"
"punpcklbh %[pa], %[pa], %[zero] \n\t"
"punpcklbh %[pb], %[pb], %[zero] \n\t"
"pcmpgth %[ftmp0], %[pa], %[pb] \n\t"
"and %[ftmp1], %[b], %[ftmp0] \n\t"
"pandn %[a], %[ftmp0], %[a] \n\t"
"or %[a], %[a], %[ftmp1] \n\t"
"pminsh %[pa], %[pa], %[pb] \n\t"
"pcmpgth %[ftmp0], %[pa], %[pc] \n\t"
"and %[ftmp1], %[c], %[ftmp0] \n\t"
"pandn %[a], %[ftmp0], %[a] \n\t"
"or %[a], %[a], %[ftmp1] \n\t"
"paddb %[a], %[a], %[d] \n\t"
"packushb %[d], %[a], %[a] \n\t"
"punpcklbh %[c], %[ftmp2], %[zero] \n\t"
"gsswrc1 %[d], 0x06(%[row]) \n\t"
"gsswlc1 %[d], 0x09(%[row]) \n\t"
"dsrl %[ftmp0], %[rp1], %[eight] \n\t"
"dsrl %[ftmp2], %[pp1], %[eight] \n\t"
"punpcklbh %[b], %[ftmp2], %[zero] \n\t"
"punpcklbh %[d], %[ftmp0], %[zero] \n\t"
"packushb %[ftmp0], %[c], %[c] \n\t"
"packushb %[ftmp1], %[a], %[a] \n\t"
"pasubub %[pa], %[ftmp2], %[ftmp0] \n\t"
"pasubub %[pb], %[ftmp1], %[ftmp0] \n\t"
"psubh %[ftmp0], %[b], %[c] \n\t"
"psubh %[ftmp1], %[a], %[c] \n\t"
"paddh %[pc], %[ftmp0], %[ftmp1] \n\t"
"pcmpgth %[ftmp0], %[zero], %[pc] \n\t"
"xor %[pc], %[pc], %[ftmp0] \n\t"
"psubh %[pc], %[pc], %[ftmp0] \n\t"
"punpcklbh %[pa], %[pa], %[zero] \n\t"
"punpcklbh %[pb], %[pb], %[zero] \n\t"
"pcmpgth %[ftmp0], %[pa], %[pb] \n\t"
"and %[ftmp1], %[b], %[ftmp0] \n\t"
"pandn %[a], %[ftmp0], %[a] \n\t"
"or %[a], %[a], %[ftmp1] \n\t"
"pminsh %[pa], %[pa], %[pb] \n\t"
"pcmpgth %[ftmp0], %[pa], %[pc] \n\t"
"and %[ftmp1], %[c], %[ftmp0] \n\t"
"pandn %[a], %[ftmp0], %[a] \n\t"
"or %[a], %[a], %[ftmp1] \n\t"
"paddb %[a], %[a], %[d] \n\t"
"packushb %[d], %[a], %[a] \n\t"
"punpcklbh %[c], %[ftmp2], %[zero] \n\t"
"gsswrc1 %[d], 0x09(%[row]) \n\t"
"daddiu %[row], %[row], 0x0c \n\t"
"daddiu %[prev], %[prev], 0x0c \n\t"
"daddiu %[istop], %[istop], -0x0c \n\t"
"bgtz %[istop], 1b \n\t"
: [rp]"=&f"(rp), [pp]"=&f"(pp), [rp1]"=&f"(rp1), [pp1]"=&f"(pp1),
[zero]"=&f"(zero), [a]"=&f"(a),[b]"=&f"(b), [c]"=&f"(c),
[d]"=&f"(d), [pa]"=&f"(pa), [pb]"=&f"(pb), [pc]"=&f"(pc),
[tmp0]"=&r"(tmp0), [ftmp0]"=&f"(ftmp[0]), [ftmp1]"=&f"(ftmp[1]),
[ftmp2]"=&f"(ftmp[2]), [eight]"=&f"(eight), [sixteen]"=&f"(sixteen),
[twenty_four]"=&f"(twenty_four), [forty_eight]"=&f"(forty_eight)
: [row]"r"(row), [prev]"r"(prev), [istop]"r"(istop)
: "memory"
);
}
void png_read_filter_row_paeth4_mmi(png_row_infop row_info, png_bytep row,
png_const_bytep prev)
{
/* Paeth tries to predict pixel d using the pixel to the left of it, a,
* and two pixels from the previous row, b and c:
* prev: c b
* row: a d
* The Paeth function predicts d to be whichever of a, b, or c is nearest to
* p=a+b-c.
*
* The first pixel has no left context, and so uses an Up filter, p = b.
* This works naturally with our main loop's p = a+b-c if we force a and c
* to zero.
* Here we zero b and d, which become c and a respectively at the start of
* the loop.
*/
int istop = row_info->rowbytes;
double rp, pp, zero;
double a, b, c, d, pa, pb, pc;
double ftmp[2];
__asm__ volatile (
"xor %[a], %[a], %[a] \n\t"
"xor %[c], %[c], %[c] \n\t"
"xor %[zero], %[zero], %[zero] \n\t"
"1: \n\t"
"lwc1 %[rp], 0x00(%[row]) \n\t"
"lwc1 %[pp], 0x00(%[prev]) \n\t"
"punpcklbh %[b], %[pp], %[zero] \n\t"
"punpcklbh %[d], %[rp], %[zero] \n\t"
"packushb %[ftmp0], %[c], %[c] \n\t"
"packushb %[ftmp1], %[a], %[a] \n\t"
"pasubub %[pa], %[pp], %[ftmp0] \n\t"
"pasubub %[pb], %[ftmp1], %[ftmp0] \n\t"
"psubh %[ftmp0], %[b], %[c] \n\t"
"psubh %[ftmp1], %[a], %[c] \n\t"
"paddh %[pc], %[ftmp0], %[ftmp1] \n\t"
"pcmpgth %[ftmp0], %[zero], %[pc] \n\t"
"xor %[pc], %[pc], %[ftmp0] \n\t"
"psubh %[pc], %[pc], %[ftmp0] \n\t"
"punpcklbh %[pa], %[pa], %[zero] \n\t"
"punpcklbh %[pb], %[pb], %[zero] \n\t"
"pcmpgth %[ftmp0], %[pa], %[pb] \n\t"
"and %[ftmp1], %[b], %[ftmp0] \n\t"
"pandn %[a], %[ftmp0], %[a] \n\t"
"or %[a], %[a], %[ftmp1] \n\t"
"pminsh %[pa], %[pa], %[pb] \n\t"
"pcmpgth %[ftmp0], %[pa], %[pc] \n\t"
"and %[ftmp1], %[c], %[ftmp0] \n\t"
"pandn %[a], %[ftmp0], %[a] \n\t"
"or %[a], %[a], %[ftmp1] \n\t"
"paddb %[a], %[a], %[d] \n\t"
"packushb %[d], %[a], %[a] \n\t"
"swc1 %[d], 0x00(%[row]) \n\t"
"punpcklbh %[c], %[pp], %[zero] \n\t"
"daddiu %[row], %[row], 0x04 \n\t"
"daddiu %[prev], %[prev], 0x04 \n\t"
"daddiu %[istop], %[istop], -0x04 \n\t"
"bgtz %[istop], 1b \n\t"
: [rp]"=&f"(rp), [pp]"=&f"(pp), [zero]"=&f"(zero),
[a]"=&f"(a), [b]"=&f"(b), [c]"=&f"(c), [d]"=&f"(d),
[pa]"=&f"(pa), [pb]"=&f"(pb), [pc]"=&f"(pc),
[ftmp0]"=&f"(ftmp[0]), [ftmp1]"=&f"(ftmp[1])
: [row]"r"(row), [prev]"r"(prev), [istop]"r"(istop)
: "memory"
);
}
#endif /* PNG_MIPS_MMI_IMPLEMENTATION > 0 */
#endif /* READ */

14
media/libpng/mips/filter_msa_intrinsics.c
Просмотреть файл

@ -1,9 +1,9 @@
/* filter_msa_intrinsics.c - MSA optimised filter functions
*
* Copyright (c) 2018 Cosmin Truta
* Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 2016 Glenn Randers-Pehrson
* Written by Mandar Sahastrabuddhe, August 2016.
* Written by Mandar Sahastrabuddhe, August 2016
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
@ -11,7 +11,6 @@
*/
#include <stdio.h>
#include <stdint.h>
#include "../pngpriv.h"
#ifdef PNG_READ_SUPPORTED
@ -20,6 +19,7 @@
#if PNG_MIPS_MSA_IMPLEMENTATION == 1 /* intrinsics code from pngpriv.h */
#include <msa.h>
#include <stdint.h>
/* libpng row pointers are not necessarily aligned to any particular boundary,
* however this code will only work with appropriate alignment. mips/mips_init.c
@ -379,8 +379,8 @@ void png_read_filter_row_up_msa(png_row_infop row_info, png_bytep row,
LD_UB4(pp, 16, src4, src5, src6, src7);
pp += 64;
ADD4(src0, src4, src1, src5, src2, src6, src3, src7,
src0, src1, src2, src3);
ADD4(src0, src4, src1, src5, src2, src6, src3, src7,
src0, src1, src2, src3);
ST_UB4(src0, src1, src2, src3, rp, 16);
rp += 64;
@ -400,7 +400,7 @@ void png_read_filter_row_up_msa(png_row_infop row_info, png_bytep row,
LD_UB4(pp, 16, src4, src5, src6, src7);
ADD4(src0, src4, src1, src5, src2, src6, src3, src7,
src0, src1, src2, src3);
src0, src1, src2, src3);
ST_UB4(src0, src1, src2, src3, rp, 16);
rp += 64;
@ -425,7 +425,7 @@ void png_read_filter_row_up_msa(png_row_infop row_info, png_bytep row,
LD_UB2(rp, 16, src0, src1);
LD_UB2(pp, 16, src4, src5);
ADD2(src0, src4, src1, src5, src0, src1);
ADD2(src0, src4, src1, src5, src0, src1);
ST_UB2(src0, src1, rp, 16);
rp += 32;

86
media/libpng/mips/mips_init.c
Просмотреть файл

@ -1,9 +1,10 @@
/* mips_init.c - MSA optimised filter functions
*
* Copyright (c) 2018 Cosmin Truta
* Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 2016 Glenn Randers-Pehrson
* Written by Mandar Sahastrabuddhe, 2016.
* Written by Mandar Sahastrabuddhe, 2016
* Updated by guxiwei, 2023
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
@ -20,8 +21,9 @@
#ifdef PNG_READ_SUPPORTED
#if PNG_MIPS_MSA_OPT > 0
#ifdef PNG_MIPS_MSA_CHECK_SUPPORTED /* Do run-time checks */
#if PNG_MIPS_MSA_IMPLEMENTATION == 1 || PNG_MIPS_MMI_IMPLEMENTATION > 0
#ifdef PNG_MIPS_MSA_CHECK_SUPPORTED /* Do MIPS MSA run-time checks */
/* WARNING: it is strongly recommended that you do not build libpng with
* run-time checks for CPU features if at all possible. In the case of the MIPS
* MSA instructions there is no processor-specific way of detecting the
@ -51,13 +53,83 @@ static int png_have_msa(png_structp png_ptr);
#endif /* PNG_MIPS_MSA_FILE */
#endif /* PNG_MIPS_MSA_CHECK_SUPPORTED */
#ifdef PNG_MIPS_MMI_CHECK_SUPPORTED /* Do MIPS MMI run-times checks */
#ifndef PNG_MIPS_MMI_FILE
# ifdef __linux__
# define PNG_MIPS_MMI_FILE "contrib/mips-mmi/linux.c"
# endif
#endif
#ifdef PNG_MIPS_MMI_FILE
#include <signal.h> /* for sig_atomic_t */
static int png_have_mmi();
#include PNG_MIPS_MMI_FILE
#else /* PNG_MIPS_MMI_FILE */
# error "PNG_MIPS_MMI_FILE undefined: no support for run-time MIPS MMI checks"
#endif /* PNG_MIPS_MMI_FILE */
#endif /* PNG_MIPS_MMI_CHECK_SUPPORTED*/
#ifndef PNG_ALIGNED_MEMORY_SUPPORTED
# error "ALIGNED_MEMORY is required; set: -DPNG_ALIGNED_MEMORY_SUPPORTED"
#endif
/* MIPS supports two optimizations: MMI and MSA. The appropriate
* optimization is chosen at runtime
*/
void
png_init_filter_functions_msa(png_structp pp, unsigned int bpp)
png_init_filter_functions_mips(png_structp pp, unsigned int bpp)
{
#if PNG_MIPS_MMI_IMPLEMENTATION > 0
#ifdef PNG_MIPS_MMI_API_SUPPORTED
switch ((pp->options >> PNG_MIPS_MMI) & 3)
{
case PNG_OPTION_UNSET:
#endif /* PNG_MIPS_MMI_API_SUPPORTED */
#ifdef PNG_MIPS_MMI_CHECK_SUPPORTED
{
static volatile sig_atomic_t no_mmi = -1; /* not checked */
if (no_mmi < 0)
no_mmi = !png_have_mmi();
if (no_mmi)
goto MIPS_MSA_INIT;
}
#ifdef PNG_MIPS_MMI_API_SUPPORTED
break;
#endif
#endif /* PNG_MIPS_MMI_CHECK_SUPPORTED */
#ifdef PNG_MIPS_MMI_API_SUPPORTED
default: /* OFF or INVALID */
goto MIPS_MSA_INIT;
case PNG_OPTION_ON:
/* Option turned on */
break;
}
#endif
pp->read_filter[PNG_FILTER_VALUE_UP-1] = png_read_filter_row_up_mmi;
if (bpp == 3)
{
pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub3_mmi;
pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg3_mmi;
pp->read_filter[PNG_FILTER_VALUE_PAETH-1] =
png_read_filter_row_paeth3_mmi;
}
else if (bpp == 4)
{
pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub4_mmi;
pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg4_mmi;
pp->read_filter[PNG_FILTER_VALUE_PAETH-1] =
png_read_filter_row_paeth4_mmi;
}
#endif /* PNG_MIPS_MMI_IMPLEMENTATION > 0 */
MIPS_MSA_INIT:
#if PNG_MIPS_MSA_IMPLEMENTATION == 1
/* The switch statement is compiled in for MIPS_MSA_API, the call to
* png_have_msa is compiled in for MIPS_MSA_CHECK. If both are defined
* the check is only performed if the API has not set the MSA option on
@ -125,6 +197,8 @@ png_init_filter_functions_msa(png_structp pp, unsigned int bpp)
pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg4_msa;
pp->read_filter[PNG_FILTER_VALUE_PAETH-1] = png_read_filter_row_paeth4_msa;
}
#endif /* PNG_MIPS_MSA_IMPLEMENTATION == 1 */
return;
}
#endif /* PNG_MIPS_MSA_OPT > 0 */
#endif /* PNG_MIPS_MSA_IMPLEMENTATION == 1 || PNG_MIPS_MMI_IMPLEMENTATION > 0 */
#endif /* READ */

1
media/libpng/moz.build
Просмотреть файл

@ -53,6 +53,7 @@ if CONFIG['INTEL_ARCHITECTURE']:
if CONFIG['TARGET_CPU'] in ('mips32', 'mips64'):
DEFINES['MOZ_PNG_USE_MIPS_MSA'] = True
UNIFIED_SOURCES += [
'mips/filter_mmi_inline_assembly.c',
'mips/filter_msa_intrinsics.c',
'mips/mips_init.c'
]

4
media/libpng/moz.yaml
Просмотреть файл

@ -11,9 +11,9 @@ origin:
url: "http://www.libpng.org/pub/png/libpng.html"
license: libpng
release: commit v1.6.39 (2022-11-20T23:53:23+02:00).
release: v1.6.42 (2024-01-29T22:51:33+02:00).
revision: "v1.6.39"
revision: "v1.6.42"
license-file: LICENSE

73
media/libpng/png.c
Просмотреть файл

@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions
*
* Copyright (c) 2018-2022 Cosmin Truta
* Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -14,27 +14,7 @@
#include "pngpriv.h"
/* Generate a compiler error if there is an old png.h in the search path. */
typedef png_libpng_version_1_6_39 Your_png_h_is_not_version_1_6_39;
#ifdef __GNUC__
/* The version tests may need to be added to, but the problem warning has
* consistently been fixed in GCC versions which obtain wide-spread release.
* The problem is that many versions of GCC rearrange comparison expressions in
* the optimizer in such a way that the results of the comparison will change
* if signed integer overflow occurs. Such comparisons are not permitted in
* ANSI C90, however GCC isn't clever enough to work out that that do not occur
* below in png_ascii_from_fp and png_muldiv, so it produces a warning with
* -Wextra. Unfortunately this is highly dependent on the optimizer and the
* machine architecture so the warning comes and goes unpredictably and is
* impossible to "fix", even were that a good idea.
*/
#if __GNUC__ == 7 && __GNUC_MINOR__ == 1
#define GCC_STRICT_OVERFLOW 1
#endif /* GNU 7.1.x */
#endif /* GNU */
#ifndef GCC_STRICT_OVERFLOW
#define GCC_STRICT_OVERFLOW 0
#endif
typedef png_libpng_version_1_6_42 Your_png_h_is_not_version_1_6_42;
/* Tells libpng that we have already handled the first "num_bytes" bytes
* of the PNG file signature. If the PNG data is embedded into another
@ -73,21 +53,21 @@ png_set_sig_bytes(png_structrp png_ptr, int num_bytes)
int PNGAPI
png_sig_cmp(png_const_bytep sig, size_t start, size_t num_to_check)
{
png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10};
static const png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10};
if (num_to_check > 8)
num_to_check = 8;
else if (num_to_check < 1)
return (-1);
return -1;
if (start > 7)
return (-1);
return -1;
if (start + num_to_check > 8)
num_to_check = 8 - start;
return ((int)(memcmp(&sig[start], &png_signature[start], num_to_check)));
return memcmp(&sig[start], &png_signature[start], num_to_check);
}
#endif /* READ */
@ -447,7 +427,6 @@ png_info_init_3,(png_infopp ptr_ptr, size_t png_info_struct_size),
memset(info_ptr, 0, (sizeof *info_ptr));
}
/* The following API is not called internally */
void PNGAPI
png_data_freer(png_const_structrp png_ptr, png_inforp info_ptr,
int freer, png_uint_32 mask)
@ -686,9 +665,9 @@ png_voidp PNGAPI
png_get_io_ptr(png_const_structrp png_ptr)
{
if (png_ptr == NULL)
return (NULL);
return NULL;
return (png_ptr->io_ptr);
return png_ptr->io_ptr;
}
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
@ -752,7 +731,7 @@ png_convert_to_rfc1123_buffer(char out[29], png_const_timep ptime)
{
size_t pos = 0;
char number_buf[5]; /* enough for a four-digit year */
char number_buf[5] = {0, 0, 0, 0, 0}; /* enough for a four-digit year */
# define APPEND_STRING(string) pos = png_safecat(out, 29, pos, (string))
# define APPEND_NUMBER(format, value)\
@ -815,8 +794,8 @@ png_get_copyright(png_const_structrp png_ptr)
return PNG_STRING_COPYRIGHT
#else
return PNG_STRING_NEWLINE \
"libpng version 1.6.39" PNG_STRING_NEWLINE \
"Copyright (c) 2018-2022 Cosmin Truta" PNG_STRING_NEWLINE \
"libpng version 1.6.42" PNG_STRING_NEWLINE \
"Copyright (c) 2018-2024 Cosmin Truta" PNG_STRING_NEWLINE \
"Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson" \
PNG_STRING_NEWLINE \
"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
@ -977,7 +956,7 @@ png_reset_zstream(png_structrp png_ptr)
return Z_STREAM_ERROR;
/* WARNING: this resets the window bits to the maximum! */
return (inflateReset(&png_ptr->zstream));
return inflateReset(&png_ptr->zstream);
}
#endif /* READ */
@ -986,7 +965,7 @@ png_uint_32 PNGAPI
png_access_version_number(void)
{
/* Version of *.c files used when building libpng */
return((png_uint_32)PNG_LIBPNG_VER);
return (png_uint_32)PNG_LIBPNG_VER;
}
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
@ -2891,14 +2870,6 @@ png_pow10(int power)
/* Function to format a floating point value in ASCII with a given
* precision.
*/
#if GCC_STRICT_OVERFLOW
#pragma GCC diagnostic push
/* The problem arises below with exp_b10, which can never overflow because it
* comes, originally, from frexp and is therefore limited to a range which is
* typically +/-710 (log2(DBL_MAX)/log2(DBL_MIN)).
*/
#pragma GCC diagnostic warning "-Wstrict-overflow=2"
#endif /* GCC_STRICT_OVERFLOW */
void /* PRIVATE */
png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, size_t size,
double fp, unsigned int precision)
@ -3220,10 +3191,6 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, size_t size,
/* Here on buffer too small. */
png_error(png_ptr, "ASCII conversion buffer too small");
}
#if GCC_STRICT_OVERFLOW
#pragma GCC diagnostic pop
#endif /* GCC_STRICT_OVERFLOW */
# endif /* FLOATING_POINT */
# ifdef PNG_FIXED_POINT_SUPPORTED
@ -3251,7 +3218,7 @@ png_ascii_from_fixed(png_const_structrp png_ptr, png_charp ascii,
if (num <= 0x80000000) /* else overflowed */
{
unsigned int ndigits = 0, first = 16 /* flag value */;
char digits[10];
char digits[10] = {0};
while (num)
{
@ -3336,15 +3303,6 @@ png_fixed(png_const_structrp png_ptr, double fp, png_const_charp text)
* the nearest .00001). Overflow and divide by zero are signalled in
* the result, a boolean - true on success, false on overflow.
*/
#if GCC_STRICT_OVERFLOW /* from above */
/* It is not obvious which comparison below gets optimized in such a way that
* signed overflow would change the result; looking through the code does not
* reveal any tests which have the form GCC complains about, so presumably the
* optimizer is moving an add or subtract into the 'if' somewhere.
*/
#pragma GCC diagnostic push
#pragma GCC diagnostic warning "-Wstrict-overflow=2"
#endif /* GCC_STRICT_OVERFLOW */
int
png_muldiv(png_fixed_point_p res, png_fixed_point a, png_int_32 times,
png_int_32 divisor)
@ -3459,9 +3417,6 @@ png_muldiv(png_fixed_point_p res, png_fixed_point a, png_int_32 times,
return 0;
}
#if GCC_STRICT_OVERFLOW
#pragma GCC diagnostic pop
#endif /* GCC_STRICT_OVERFLOW */
#endif /* READ_GAMMA || INCH_CONVERSIONS */
#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_INCH_CONVERSIONS_SUPPORTED)

52
media/libpng/png.h
Просмотреть файл

@ -1,9 +1,9 @@
/* png.h - header file for PNG reference library
*
* libpng version 1.6.39 - November 20, 2022
* libpng version 1.6.42
*
* Copyright (c) 2018-2022 Cosmin Truta
* Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -15,7 +15,7 @@
* libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger
* libpng versions 0.97, January 1998, through 1.6.35, July 2018:
* Glenn Randers-Pehrson
* libpng versions 1.6.36, December 2018, through 1.6.39, November 2022:
* libpng versions 1.6.36, December 2018, through 1.6.42, January 2024:
* Cosmin Truta
* See also "Contributing Authors", below.
*/
@ -27,8 +27,8 @@
* PNG Reference Library License version 2
* ---------------------------------------
*
* * Copyright (c) 1995-2022 The PNG Reference Library Authors.
* * Copyright (c) 2018-2022 Cosmin Truta.
* * Copyright (c) 1995-2024 The PNG Reference Library Authors.
* * Copyright (c) 2018-2024 Cosmin Truta.
* * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson.
* * Copyright (c) 1996-1997 Andreas Dilger.
* * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -239,7 +239,7 @@
* ...
* 1.5.30 15 10530 15.so.15.30[.0]
* ...
* 1.6.39 16 10639 16.so.16.39[.0]
* 1.6.42 16 10641 16.so.16.41[.0]
*
* Henceforth the source version will match the shared-library major and
* minor numbers; the shared-library major version number will be used for
@ -278,8 +278,8 @@
*/
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.6.39"
#define PNG_HEADER_VERSION_STRING " libpng version 1.6.39 - November 20, 2022\n"
#define PNG_LIBPNG_VER_STRING "1.6.42"
#define PNG_HEADER_VERSION_STRING " libpng version " PNG_LIBPNG_VER_STRING "\n"
#define PNG_LIBPNG_VER_SONUM 16
#define PNG_LIBPNG_VER_DLLNUM 16
@ -287,7 +287,7 @@
/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
#define PNG_LIBPNG_VER_MAJOR 1
#define PNG_LIBPNG_VER_MINOR 6
#define PNG_LIBPNG_VER_RELEASE 39
#define PNG_LIBPNG_VER_RELEASE 41
/* This should be zero for a public release, or non-zero for a
* development version. [Deprecated]
@ -318,7 +318,7 @@
* From version 1.0.1 it is:
* XXYYZZ, where XX=major, YY=minor, ZZ=release
*/
#define PNG_LIBPNG_VER 10639 /* 1.6.39 */
#define PNG_LIBPNG_VER 10641 /* 1.6.42 */
/* Library configuration: these options cannot be changed after
* the library has been built.
@ -443,7 +443,7 @@ extern "C" {
/* This triggers a compiler error in png.c, if png.c and png.h
* do not agree upon the version number.
*/
typedef char* png_libpng_version_1_6_39;
typedef char* png_libpng_version_1_6_42;
/* Basic control structions. Read libpng-manual.txt or libpng.3 for more info.
*
@ -872,7 +872,7 @@ PNG_FUNCTION(void, (PNGCAPI *png_longjmp_ptr), PNGARG((jmp_buf, int)), typedef);
#define PNG_TRANSFORM_GRAY_TO_RGB 0x2000 /* read only */
/* Added to libpng-1.5.4 */
#define PNG_TRANSFORM_EXPAND_16 0x4000 /* read only */
#if INT_MAX >= 0x8000 /* else this might break */
#if ~0U > 0xffffU /* or else this might break on a 16-bit machine */
#define PNG_TRANSFORM_SCALE_16 0x8000 /* read only */
#endif
@ -931,15 +931,15 @@ PNG_EXPORT(2, void, png_set_sig_bytes, (png_structrp png_ptr, int num_bytes));
/* Check sig[start] through sig[start + num_to_check - 1] to see if it's a
* PNG file. Returns zero if the supplied bytes match the 8-byte PNG
* signature, and non-zero otherwise. Having num_to_check == 0 or
* start > 7 will always fail (ie return non-zero).
* start > 7 will always fail (i.e. return non-zero).
*/
PNG_EXPORT(3, int, png_sig_cmp, (png_const_bytep sig, size_t start,
size_t num_to_check));
/* Simple signature checking function. This is the same as calling
* png_check_sig(sig, n) := !png_sig_cmp(sig, 0, n).
* png_check_sig(sig, n) := (png_sig_cmp(sig, 0, n) == 0).
*/
#define png_check_sig(sig, n) !png_sig_cmp((sig), 0, (n))
#define png_check_sig(sig, n) (png_sig_cmp((sig), 0, (n)) == 0) /* DEPRECATED */
/* Allocate and initialize png_ptr struct for reading, and any other memory. */
PNG_EXPORTA(4, png_structp, png_create_read_struct,
@ -1753,12 +1753,9 @@ PNG_EXPORT(97, void, png_free, (png_const_structrp png_ptr, png_voidp ptr));
PNG_EXPORT(98, void, png_free_data, (png_const_structrp png_ptr,
png_inforp info_ptr, png_uint_32 free_me, int num));
/* Reassign responsibility for freeing existing data, whether allocated
/* Reassign the responsibility for freeing existing data, whether allocated
* by libpng or by the application; this works on the png_info structure passed
* in, it does not change the state for other png_info structures.
*
* It is unlikely that this function works correctly as of 1.6.0 and using it
* may result either in memory leaks or double free of allocated data.
* in, without changing the state for other png_info structures.
*/
PNG_EXPORT(99, void, png_data_freer, (png_const_structrp png_ptr,
png_inforp info_ptr, int freer, png_uint_32 mask));
@ -3230,11 +3227,18 @@ PNG_EXPORT(245, int, png_image_write_to_memory, (png_imagep image, void *memory,
#ifdef PNG_MIPS_MSA_API_SUPPORTED
# define PNG_MIPS_MSA 6 /* HARDWARE: MIPS Msa SIMD instructions supported */
#endif
#define PNG_IGNORE_ADLER32 8
#ifdef PNG_POWERPC_VSX_API_SUPPORTED
# define PNG_POWERPC_VSX 10 /* HARDWARE: PowerPC VSX SIMD instructions supported */
#ifdef PNG_DISABLE_ADLER32_CHECK_SUPPORTED
# define PNG_IGNORE_ADLER32 8 /* SOFTWARE: disable Adler32 check on IDAT */
#endif
#define PNG_OPTION_NEXT 12 /* Next option - numbers must be even */
#ifdef PNG_POWERPC_VSX_API_SUPPORTED
# define PNG_POWERPC_VSX 10 /* HARDWARE: PowerPC VSX SIMD instructions
* supported */
#endif
#ifdef PNG_MIPS_MMI_API_SUPPORTED
# define PNG_MIPS_MMI 12 /* HARDWARE: MIPS MMI SIMD instructions supported */
#endif
#define PNG_OPTION_NEXT 14 /* Next option - numbers must be even */
/* Return values: NOTE: there are four values and 'off' is *not* zero */
#define PNG_OPTION_UNSET 0 /* Unset - defaults to off */

4
media/libpng/pngconf.h
Просмотреть файл

@ -1,9 +1,9 @@
/* pngconf.h - machine-configurable file for libpng
*
* libpng version 1.6.39
* libpng version 1.6.42
*
* Copyright (c) 2018-2022 Cosmin Truta
* Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.

34
media/libpng/pngerror.c
Просмотреть файл

@ -1,7 +1,7 @@
/* pngerror.c - stub functions for i/o and memory allocation
*
* Copyright (c) 2018 Cosmin Truta
* Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -255,7 +255,7 @@ void
png_warning_parameter_unsigned(png_warning_parameters p, int number, int format,
png_alloc_size_t value)
{
char buffer[PNG_NUMBER_BUFFER_SIZE];
char buffer[PNG_NUMBER_BUFFER_SIZE] = {0};
png_warning_parameter(p, number, PNG_FORMAT_NUMBER(buffer, format, value));
}
@ -265,7 +265,7 @@ png_warning_parameter_signed(png_warning_parameters p, int number, int format,
{
png_alloc_size_t u;
png_charp str;
char buffer[PNG_NUMBER_BUFFER_SIZE];
char buffer[PNG_NUMBER_BUFFER_SIZE] = {0};
/* Avoid overflow by doing the negate in a png_alloc_size_t: */
u = (png_alloc_size_t)value;
@ -858,7 +858,7 @@ png_get_error_ptr(png_const_structrp png_ptr)
if (png_ptr == NULL)
return NULL;
return ((png_voidp)png_ptr->error_ptr);
return (png_voidp)png_ptr->error_ptr;
}
@ -933,31 +933,25 @@ png_safe_warning(png_structp png_nonconst_ptr, png_const_charp warning_message)
#endif
int /* PRIVATE */
png_safe_execute(png_imagep image_in, int (*function)(png_voidp), png_voidp arg)
png_safe_execute(png_imagep image, int (*function)(png_voidp), png_voidp arg)
{
volatile png_imagep image = image_in;
volatile int result;
volatile png_voidp saved_error_buf;
png_voidp saved_error_buf = image->opaque->error_buf;
jmp_buf safe_jmpbuf;
int result;
/* Safely execute function(arg) with png_error returning to this function. */
saved_error_buf = image->opaque->error_buf;
result = setjmp(safe_jmpbuf) == 0;
if (result != 0)
/* Safely execute function(arg), with png_error returning back here. */
if (setjmp(safe_jmpbuf) == 0)
{
image->opaque->error_buf = safe_jmpbuf;
result = function(arg);
image->opaque->error_buf = saved_error_buf;
return result;
}
/* On png_error, return via longjmp, pop the jmpbuf, and free the image. */
image->opaque->error_buf = saved_error_buf;
/* And do the cleanup prior to any failure return. */
if (result == 0)
png_image_free(image);
return result;
png_image_free(image);
return 0;
}
#endif /* SIMPLIFIED READ || SIMPLIFIED_WRITE */
#endif /* READ || WRITE */

254
media/libpng/pngget.c
Просмотреть файл

@ -1,7 +1,7 @@
/* pngget.c - retrieval of values from info struct
*
* Copyright (c) 2018 Cosmin Truta
* Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -21,18 +21,29 @@ png_get_valid(png_const_structrp png_ptr, png_const_inforp info_ptr,
png_uint_32 flag)
{
if (png_ptr != NULL && info_ptr != NULL)
return(info_ptr->valid & flag);
{
#ifdef PNG_READ_tRNS_SUPPORTED
/* png_handle_PLTE() may have canceled a valid tRNS chunk but left the
* 'valid' flag for the detection of duplicate chunks. Do not report a
* valid tRNS chunk in this case.
*/
if (flag == PNG_INFO_tRNS && png_ptr->num_trans == 0)
return 0;
#endif
return(0);
return info_ptr->valid & flag;
}
return 0;
}
size_t PNGAPI
png_get_rowbytes(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
if (png_ptr != NULL && info_ptr != NULL)
return(info_ptr->rowbytes);
return info_ptr->rowbytes;
return(0);
return 0;
}
#ifdef PNG_INFO_IMAGE_SUPPORTED
@ -40,9 +51,9 @@ png_bytepp PNGAPI
png_get_rows(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
if (png_ptr != NULL && info_ptr != NULL)
return(info_ptr->row_pointers);
return info_ptr->row_pointers;
return(0);
return 0;
}
#endif
@ -54,7 +65,7 @@ png_get_image_width(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->width;
return (0);
return 0;
}
png_uint_32 PNGAPI
@ -63,7 +74,7 @@ png_get_image_height(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->height;
return (0);
return 0;
}
png_byte PNGAPI
@ -72,7 +83,7 @@ png_get_bit_depth(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->bit_depth;
return (0);
return 0;
}
png_byte PNGAPI
@ -81,7 +92,7 @@ png_get_color_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->color_type;
return (0);
return 0;
}
png_byte PNGAPI
@ -90,7 +101,7 @@ png_get_filter_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->filter_type;
return (0);
return 0;
}
png_byte PNGAPI
@ -99,7 +110,7 @@ png_get_interlace_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->interlace_type;
return (0);
return 0;
}
png_byte PNGAPI
@ -108,7 +119,7 @@ png_get_compression_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
if (png_ptr != NULL && info_ptr != NULL)
return info_ptr->compression_type;
return (0);
return 0;
}
png_uint_32 PNGAPI
@ -116,21 +127,20 @@ png_get_x_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp
info_ptr)
{
#ifdef PNG_pHYs_SUPPORTED
png_debug(1, "in png_get_x_pixels_per_meter");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs) != 0)
{
png_debug1(1, "in %s retrieval function",
"png_get_x_pixels_per_meter");
if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER)
return (info_ptr->x_pixels_per_unit);
}
{
if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER)
return info_ptr->x_pixels_per_unit;
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
return (0);
return 0;
}
png_uint_32 PNGAPI
@ -138,42 +148,41 @@ png_get_y_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp
info_ptr)
{
#ifdef PNG_pHYs_SUPPORTED
png_debug(1, "in png_get_y_pixels_per_meter");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs) != 0)
{
png_debug1(1, "in %s retrieval function",
"png_get_y_pixels_per_meter");
if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER)
return (info_ptr->y_pixels_per_unit);
return info_ptr->y_pixels_per_unit;
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
return (0);
return 0;
}
png_uint_32 PNGAPI
png_get_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
#ifdef PNG_pHYs_SUPPORTED
png_debug(1, "in png_get_pixels_per_meter");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs) != 0)
{
png_debug1(1, "in %s retrieval function", "png_get_pixels_per_meter");
if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER &&
info_ptr->x_pixels_per_unit == info_ptr->y_pixels_per_unit)
return (info_ptr->x_pixels_per_unit);
return info_ptr->x_pixels_per_unit;
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
return (0);
return 0;
}
#ifdef PNG_FLOATING_POINT_SUPPORTED
@ -182,21 +191,21 @@ png_get_pixel_aspect_ratio(png_const_structrp png_ptr, png_const_inforp
info_ptr)
{
#ifdef PNG_READ_pHYs_SUPPORTED
png_debug(1, "in png_get_pixel_aspect_ratio");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs) != 0)
{
png_debug1(1, "in %s retrieval function", "png_get_aspect_ratio");
if (info_ptr->x_pixels_per_unit != 0)
return ((float)((float)info_ptr->y_pixels_per_unit
/(float)info_ptr->x_pixels_per_unit));
return (float)info_ptr->y_pixels_per_unit
/ (float)info_ptr->x_pixels_per_unit;
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
return ((float)0.0);
return (float)0.0;
}
#endif
@ -206,6 +215,8 @@ png_get_pixel_aspect_ratio_fixed(png_const_structrp png_ptr,
png_const_inforp info_ptr)
{
#ifdef PNG_READ_pHYs_SUPPORTED
png_debug(1, "in png_get_pixel_aspect_ratio_fixed");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs) != 0 &&
info_ptr->x_pixels_per_unit > 0 && info_ptr->y_pixels_per_unit > 0 &&
@ -214,8 +225,6 @@ png_get_pixel_aspect_ratio_fixed(png_const_structrp png_ptr,
{
png_fixed_point res;
png_debug1(1, "in %s retrieval function", "png_get_aspect_ratio_fixed");
/* The following casts work because a PNG 4 byte integer only has a valid
* range of 0..2^31-1; otherwise the cast might overflow.
*/
@ -236,80 +245,80 @@ png_int_32 PNGAPI
png_get_x_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
#ifdef PNG_oFFs_SUPPORTED
png_debug(1, "in png_get_x_offset_microns");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_oFFs) != 0)
{
png_debug1(1, "in %s retrieval function", "png_get_x_offset_microns");
if (info_ptr->offset_unit_type == PNG_OFFSET_MICROMETER)
return (info_ptr->x_offset);
return info_ptr->x_offset;
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
return (0);
return 0;
}
png_int_32 PNGAPI
png_get_y_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
#ifdef PNG_oFFs_SUPPORTED
png_debug(1, "in png_get_y_offset_microns");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_oFFs) != 0)
{
png_debug1(1, "in %s retrieval function", "png_get_y_offset_microns");
if (info_ptr->offset_unit_type == PNG_OFFSET_MICROMETER)
return (info_ptr->y_offset);
return info_ptr->y_offset;
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
return (0);
return 0;
}
png_int_32 PNGAPI
png_get_x_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
#ifdef PNG_oFFs_SUPPORTED
png_debug(1, "in png_get_x_offset_pixels");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_oFFs) != 0)
{
png_debug1(1, "in %s retrieval function", "png_get_x_offset_pixels");
if (info_ptr->offset_unit_type == PNG_OFFSET_PIXEL)
return (info_ptr->x_offset);
return info_ptr->x_offset;
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
return (0);
return 0;
}
png_int_32 PNGAPI
png_get_y_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
#ifdef PNG_oFFs_SUPPORTED
png_debug(1, "in png_get_y_offset_pixels");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_oFFs) != 0)
{
png_debug1(1, "in %s retrieval function", "png_get_y_offset_pixels");
if (info_ptr->offset_unit_type == PNG_OFFSET_PIXEL)
return (info_ptr->y_offset);
return info_ptr->y_offset;
}
#else
PNG_UNUSED(png_ptr)
PNG_UNUSED(info_ptr)
#endif
return (0);
return 0;
}
#ifdef PNG_INCH_CONVERSIONS_SUPPORTED
@ -423,11 +432,11 @@ png_get_pHYs_dpi(png_const_structrp png_ptr, png_const_inforp info_ptr,
{
png_uint_32 retval = 0;
png_debug1(1, "in %s retrieval function", "pHYs");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs) != 0)
{
png_debug1(1, "in %s retrieval function", "pHYs");
if (res_x != NULL)
{
*res_x = info_ptr->x_pixels_per_unit;
@ -453,7 +462,7 @@ png_get_pHYs_dpi(png_const_structrp png_ptr, png_const_inforp info_ptr,
}
}
return (retval);
return retval;
}
#endif /* pHYs */
#endif /* INCH_CONVERSIONS */
@ -467,9 +476,9 @@ png_byte PNGAPI
png_get_channels(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
if (png_ptr != NULL && info_ptr != NULL)
return(info_ptr->channels);
return info_ptr->channels;
return (0);
return 0;
}
#ifdef PNG_READ_SUPPORTED
@ -477,9 +486,9 @@ png_const_bytep PNGAPI
png_get_signature(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
if (png_ptr != NULL && info_ptr != NULL)
return(info_ptr->signature);
return info_ptr->signature;
return (NULL);
return NULL;
}
#endif
@ -488,17 +497,17 @@ png_uint_32 PNGAPI
png_get_bKGD(png_const_structrp png_ptr, png_inforp info_ptr,
png_color_16p *background)
{
png_debug1(1, "in %s retrieval function", "bKGD");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_bKGD) != 0 &&
background != NULL)
{
png_debug1(1, "in %s retrieval function", "bKGD");
*background = &(info_ptr->background);
return (PNG_INFO_bKGD);
return PNG_INFO_bKGD;
}
return (0);
return 0;
}
#endif
@ -513,6 +522,8 @@ png_get_cHRM(png_const_structrp png_ptr, png_const_inforp info_ptr,
double *white_x, double *white_y, double *red_x, double *red_y,
double *green_x, double *green_y, double *blue_x, double *blue_y)
{
png_debug1(1, "in %s retrieval function", "cHRM");
/* Quiet API change: this code used to only return the end points if a cHRM
* chunk was present, but the end points can also come from iCCP or sRGB
* chunks, so in 1.6.0 the png_get_ APIs return the end points regardless and
@ -522,8 +533,6 @@ png_get_cHRM(png_const_structrp png_ptr, png_const_inforp info_ptr,
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
{
png_debug1(1, "in %s retrieval function", "cHRM");
if (white_x != NULL)
*white_x = png_float(png_ptr,
info_ptr->colorspace.end_points_xy.whitex, "cHRM white X");
@ -548,10 +557,10 @@ png_get_cHRM(png_const_structrp png_ptr, png_const_inforp info_ptr,
if (blue_y != NULL)
*blue_y = png_float(png_ptr, info_ptr->colorspace.end_points_xy.bluey,
"cHRM blue Y");
return (PNG_INFO_cHRM);
return PNG_INFO_cHRM;
}
return (0);
return 0;
}
png_uint_32 PNGAPI
@ -560,11 +569,11 @@ png_get_cHRM_XYZ(png_const_structrp png_ptr, png_const_inforp info_ptr,
double *green_Y, double *green_Z, double *blue_X, double *blue_Y,
double *blue_Z)
{
png_debug1(1, "in %s retrieval function", "cHRM_XYZ(float)");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
{
png_debug1(1, "in %s retrieval function", "cHRM_XYZ(float)");
if (red_X != NULL)
*red_X = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_X,
"cHRM red X");
@ -592,10 +601,10 @@ png_get_cHRM_XYZ(png_const_structrp png_ptr, png_const_inforp info_ptr,
if (blue_Z != NULL)
*blue_Z = png_float(png_ptr,
info_ptr->colorspace.end_points_XYZ.blue_Z, "cHRM blue Z");
return (PNG_INFO_cHRM);
return PNG_INFO_cHRM;
}
return (0);
return 0;
}
# endif
@ -608,11 +617,11 @@ png_get_cHRM_XYZ_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
png_fixed_point *int_blue_X, png_fixed_point *int_blue_Y,
png_fixed_point *int_blue_Z)
{
png_debug1(1, "in %s retrieval function", "cHRM_XYZ");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
{
png_debug1(1, "in %s retrieval function", "cHRM_XYZ");
if (int_red_X != NULL)
*int_red_X = info_ptr->colorspace.end_points_XYZ.red_X;
if (int_red_Y != NULL)
@ -631,10 +640,10 @@ png_get_cHRM_XYZ_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
*int_blue_Y = info_ptr->colorspace.end_points_XYZ.blue_Y;
if (int_blue_Z != NULL)
*int_blue_Z = info_ptr->colorspace.end_points_XYZ.blue_Z;
return (PNG_INFO_cHRM);
return PNG_INFO_cHRM;
}
return (0);
return 0;
}
png_uint_32 PNGAPI
@ -664,10 +673,10 @@ png_get_cHRM_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
*blue_x = info_ptr->colorspace.end_points_xy.bluex;
if (blue_y != NULL)
*blue_y = info_ptr->colorspace.end_points_xy.bluey;
return (PNG_INFO_cHRM);
return PNG_INFO_cHRM;
}
return (0);
return 0;
}
# endif
#endif
@ -685,10 +694,10 @@ png_get_gAMA_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
file_gamma != NULL)
{
*file_gamma = info_ptr->colorspace.gamma;
return (PNG_INFO_gAMA);
return PNG_INFO_gAMA;
}
return (0);
return 0;
}
# endif
@ -705,10 +714,10 @@ png_get_gAMA(png_const_structrp png_ptr, png_const_inforp info_ptr,
{
*file_gamma = png_float(png_ptr, info_ptr->colorspace.gamma,
"png_get_gAMA");
return (PNG_INFO_gAMA);
return PNG_INFO_gAMA;
}
return (0);
return 0;
}
# endif
#endif
@ -724,10 +733,10 @@ png_get_sRGB(png_const_structrp png_ptr, png_const_inforp info_ptr,
(info_ptr->valid & PNG_INFO_sRGB) != 0 && file_srgb_intent != NULL)
{
*file_srgb_intent = info_ptr->colorspace.rendering_intent;
return (PNG_INFO_sRGB);
return PNG_INFO_sRGB;
}
return (0);
return 0;
}
#endif
@ -751,10 +760,10 @@ png_get_iCCP(png_const_structrp png_ptr, png_inforp info_ptr,
*/
if (compression_type != NULL)
*compression_type = PNG_COMPRESSION_TYPE_BASE;
return (PNG_INFO_iCCP);
return PNG_INFO_iCCP;
}
return (0);
return 0;
}
#endif
@ -764,13 +773,15 @@ int PNGAPI
png_get_sPLT(png_const_structrp png_ptr, png_inforp info_ptr,
png_sPLT_tpp spalettes)
{
png_debug1(1, "in %s retrieval function", "sPLT");
if (png_ptr != NULL && info_ptr != NULL && spalettes != NULL)
{
*spalettes = info_ptr->splt_palettes;
return info_ptr->splt_palettes_num;
}
return (0);
return 0;
}
#endif
@ -796,10 +807,10 @@ png_get_eXIf_1(png_const_structrp png_ptr, png_const_inforp info_ptr,
{
*num_exif = info_ptr->num_exif;
*exif = info_ptr->exif;
return (PNG_INFO_eXIf);
return PNG_INFO_eXIf;
}
return (0);
return 0;
}
#endif
@ -814,10 +825,10 @@ png_get_hIST(png_const_structrp png_ptr, png_inforp info_ptr,
(info_ptr->valid & PNG_INFO_hIST) != 0 && hist != NULL)
{
*hist = info_ptr->hist;
return (PNG_INFO_hIST);
return PNG_INFO_hIST;
}
return (0);
return 0;
}
#endif
@ -830,7 +841,7 @@ png_get_IHDR(png_const_structrp png_ptr, png_const_inforp info_ptr,
png_debug1(1, "in %s retrieval function", "IHDR");
if (png_ptr == NULL || info_ptr == NULL)
return (0);
return 0;
if (width != NULL)
*width = info_ptr->width;
@ -862,7 +873,7 @@ png_get_IHDR(png_const_structrp png_ptr, png_const_inforp info_ptr,
info_ptr->bit_depth, info_ptr->color_type, info_ptr->interlace_type,
info_ptr->compression_type, info_ptr->filter_type);
return (1);
return 1;
}
#ifdef PNG_oFFs_SUPPORTED
@ -879,10 +890,10 @@ png_get_oFFs(png_const_structrp png_ptr, png_const_inforp info_ptr,
*offset_x = info_ptr->x_offset;
*offset_y = info_ptr->y_offset;
*unit_type = (int)info_ptr->offset_unit_type;
return (PNG_INFO_oFFs);
return PNG_INFO_oFFs;
}
return (0);
return 0;
}
#endif
@ -906,10 +917,10 @@ png_get_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
*nparams = (int)info_ptr->pcal_nparams;
*units = info_ptr->pcal_units;
*params = info_ptr->pcal_params;
return (PNG_INFO_pCAL);
return PNG_INFO_pCAL;
}
return (0);
return 0;
}
#endif
@ -921,6 +932,8 @@ png_uint_32 PNGAPI
png_get_sCAL_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
int *unit, png_fixed_point *width, png_fixed_point *height)
{
png_debug1(1, "in %s retrieval function", "sCAL");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_sCAL) != 0)
{
@ -932,10 +945,10 @@ png_get_sCAL_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
*width = png_fixed(png_ptr, atof(info_ptr->scal_s_width), "sCAL width");
*height = png_fixed(png_ptr, atof(info_ptr->scal_s_height),
"sCAL height");
return (PNG_INFO_sCAL);
return PNG_INFO_sCAL;
}
return(0);
return 0;
}
# endif /* FLOATING_ARITHMETIC */
# endif /* FIXED_POINT */
@ -944,32 +957,36 @@ png_uint_32 PNGAPI
png_get_sCAL(png_const_structrp png_ptr, png_const_inforp info_ptr,
int *unit, double *width, double *height)
{
png_debug1(1, "in %s retrieval function", "sCAL(float)");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_sCAL) != 0)
{
*unit = info_ptr->scal_unit;
*width = atof(info_ptr->scal_s_width);
*height = atof(info_ptr->scal_s_height);
return (PNG_INFO_sCAL);
return PNG_INFO_sCAL;
}
return(0);
return 0;
}
# endif /* FLOATING POINT */
png_uint_32 PNGAPI
png_get_sCAL_s(png_const_structrp png_ptr, png_const_inforp info_ptr,
int *unit, png_charpp width, png_charpp height)
{
png_debug1(1, "in %s retrieval function", "sCAL(str)");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_sCAL) != 0)
{
*unit = info_ptr->scal_unit;
*width = info_ptr->scal_s_width;
*height = info_ptr->scal_s_height;
return (PNG_INFO_sCAL);
return PNG_INFO_sCAL;
}
return(0);
return 0;
}
#endif /* sCAL */
@ -1004,7 +1021,7 @@ png_get_pHYs(png_const_structrp png_ptr, png_const_inforp info_ptr,
}
}
return (retval);
return retval;
}
#endif /* pHYs */
@ -1020,10 +1037,10 @@ png_get_PLTE(png_const_structrp png_ptr, png_inforp info_ptr,
*palette = info_ptr->palette;
*num_palette = info_ptr->num_palette;
png_debug1(3, "num_palette = %d", *num_palette);
return (PNG_INFO_PLTE);
return PNG_INFO_PLTE;
}
return (0);
return 0;
}
#ifdef PNG_sBIT_SUPPORTED
@ -1037,10 +1054,10 @@ png_get_sBIT(png_const_structrp png_ptr, png_inforp info_ptr,
(info_ptr->valid & PNG_INFO_sBIT) != 0 && sig_bit != NULL)
{
*sig_bit = &(info_ptr->sig_bit);
return (PNG_INFO_sBIT);
return PNG_INFO_sBIT;
}
return (0);
return 0;
}
#endif
@ -1051,7 +1068,7 @@ png_get_text(png_const_structrp png_ptr, png_inforp info_ptr,
{
if (png_ptr != NULL && info_ptr != NULL && info_ptr->num_text > 0)
{
png_debug1(1, "in 0x%lx retrieval function",
png_debug1(1, "in text retrieval function, chunk typeid = 0x%lx",
(unsigned long)png_ptr->chunk_name);
if (text_ptr != NULL)
@ -1066,7 +1083,7 @@ png_get_text(png_const_structrp png_ptr, png_inforp info_ptr,
if (num_text != NULL)
*num_text = 0;
return(0);
return 0;
}
#endif
@ -1081,10 +1098,10 @@ png_get_tIME(png_const_structrp png_ptr, png_inforp info_ptr,
(info_ptr->valid & PNG_INFO_tIME) != 0 && mod_time != NULL)
{
*mod_time = &(info_ptr->mod_time);
return (PNG_INFO_tIME);
return PNG_INFO_tIME;
}
return (0);
return 0;
}
#endif
@ -1094,11 +1111,12 @@ png_get_tRNS(png_const_structrp png_ptr, png_inforp info_ptr,
png_bytep *trans_alpha, int *num_trans, png_color_16p *trans_color)
{
png_uint_32 retval = 0;
png_debug1(1, "in %s retrieval function", "tRNS");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_tRNS) != 0)
{
png_debug1(1, "in %s retrieval function", "tRNS");
if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
{
if (trans_alpha != NULL)
@ -1130,7 +1148,7 @@ png_get_tRNS(png_const_structrp png_ptr, png_inforp info_ptr,
}
}
return (retval);
return retval;
}
#endif
@ -1145,7 +1163,7 @@ png_get_unknown_chunks(png_const_structrp png_ptr, png_inforp info_ptr,
return info_ptr->unknown_chunks_num;
}
return (0);
return 0;
}
#endif
@ -1241,7 +1259,7 @@ png_get_palette_max(png_const_structp png_ptr, png_const_infop info_ptr)
if (png_ptr != NULL && info_ptr != NULL)
return png_ptr->num_palette_max;
return (-1);
return -1;
}
# endif
#endif

8
media/libpng/pngpread.c
Просмотреть файл

@ -1,7 +1,7 @@
/* pngpread.c - read a png file in push mode
*
* Copyright (c) 2018 Cosmin Truta
* Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -145,10 +145,10 @@ png_push_read_sig(png_structrp png_ptr, png_inforp info_ptr)
num_to_check);
png_ptr->sig_bytes = (png_byte)(png_ptr->sig_bytes + num_to_check);
if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check))
if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check) != 0)
{
if (num_checked < 4 &&
png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4))
png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4) != 0)
png_error(png_ptr, "Not a PNG file");
else
@ -1258,7 +1258,7 @@ png_voidp PNGAPI
png_get_progressive_ptr(png_const_structrp png_ptr)
{
if (png_ptr == NULL)
return (NULL);
return NULL;
return png_ptr->io_ptr;
}

122
media/libpng/pngpriv.h
Просмотреть файл

@ -1,7 +1,7 @@
/* pngpriv.h - private declarations for use inside libpng
*
* Copyright (c) 2018-2022 Cosmin Truta
* Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -36,7 +36,7 @@
* still required (as of 2011-05-02.)
*/
#ifndef _POSIX_SOURCE
# define _POSIX_SOURCE 1 /* Just the POSIX 1003.1 and C89 APIs */
# define _POSIX_SOURCE 1 /* Just the POSIX 1003.1 and C89 APIs */
#endif
#ifndef PNG_VERSION_INFO_ONLY
@ -190,13 +190,27 @@
#endif /* PNG_ARM_NEON_OPT > 0 */
#ifndef PNG_MIPS_MSA_OPT
# if defined(__mips_msa) && (__mips_isa_rev >= 5) && defined(PNG_ALIGNED_MEMORY_SUPPORTED)
# if defined(__mips_msa) && (__mips_isa_rev >= 5) && \
defined(PNG_ALIGNED_MEMORY_SUPPORTED)
# define PNG_MIPS_MSA_OPT 2
# else
# define PNG_MIPS_MSA_OPT 0
# endif
#endif
#ifndef PNG_MIPS_MMI_OPT
# ifdef PNG_MIPS_MMI
# if defined(__mips_loongson_mmi) && (_MIPS_SIM == _ABI64) && \
defined(PNG_ALIGNED_MEMORY_SUPPORTED)
# define PNG_MIPS_MMI_OPT 1
# else
# define PNG_MIPS_MMI_OPT 0
# endif
# else
# define PNG_MIPS_MMI_OPT 0
# endif
#endif
#ifndef PNG_POWERPC_VSX_OPT
# if defined(__PPC64__) && defined(__ALTIVEC__) && defined(__VSX__)
# define PNG_POWERPC_VSX_OPT 2
@ -205,13 +219,21 @@
# endif
#endif
#ifndef PNG_LOONGARCH_LSX_OPT
# if defined(__loongarch_sx)
# define PNG_LOONGARCH_LSX_OPT 1
# else
# define PNG_LOONGARCH_LSX_OPT 0
# endif
#endif
#ifndef PNG_INTEL_SSE_OPT
# ifdef PNG_INTEL_SSE
/* Only check for SSE if the build configuration has been modified to
* enable SSE optimizations. This means that these optimizations will
* be off by default. See contrib/intel for more details.
*/
# if defined(__SSE4_1__) || defined(__AVX__) || defined(__SSSE3__) || \
# if defined(__SSE4_1__) || defined(__AVX__) || defined(__SSSE3__) || \
defined(__SSE2__) || defined(_M_X64) || defined(_M_AMD64) || \
(defined(_M_IX86_FP) && _M_IX86_FP >= 2)
# define PNG_INTEL_SSE_OPT 1
@ -248,7 +270,6 @@
#endif
#if PNG_MIPS_MSA_OPT > 0
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_msa
# ifndef PNG_MIPS_MSA_IMPLEMENTATION
# if defined(__mips_msa)
# if defined(__clang__)
@ -264,11 +285,28 @@
# ifndef PNG_MIPS_MSA_IMPLEMENTATION
# define PNG_MIPS_MSA_IMPLEMENTATION 1
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_mips
# endif
#else
# define PNG_MIPS_MSA_IMPLEMENTATION 0
#endif /* PNG_MIPS_MSA_OPT > 0 */
#if PNG_MIPS_MMI_OPT > 0
# ifndef PNG_MIPS_MMI_IMPLEMENTATION
# if defined(__mips_loongson_mmi) && (_MIPS_SIM == _ABI64)
# define PNG_MIPS_MMI_IMPLEMENTATION 2
# else /* !defined __mips_loongson_mmi || _MIPS_SIM != _ABI64 */
# define PNG_MIPS_MMI_IMPLEMENTATION 0
# endif /* __mips_loongson_mmi && _MIPS_SIM == _ABI64 */
# endif /* !PNG_MIPS_MMI_IMPLEMENTATION */
# if PNG_MIPS_MMI_IMPLEMENTATION > 0
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_mips
# endif
#else
# define PNG_MIPS_MMI_IMPLEMENTATION 0
#endif /* PNG_MIPS_MMI_OPT > 0 */
#if PNG_POWERPC_VSX_OPT > 0
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_vsx
# define PNG_POWERPC_VSX_IMPLEMENTATION 1
@ -276,6 +314,12 @@
# define PNG_POWERPC_VSX_IMPLEMENTATION 0
#endif
#if PNG_LOONGARCH_LSX_OPT > 0
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_lsx
# define PNG_LOONGARCH_LSX_IMPLEMENTATION 1
#else
# define PNG_LOONGARCH_LSX_IMPLEMENTATION 0
#endif
/* Is this a build of a DLL where compilation of the object modules requires
* different preprocessor settings to those required for a simple library? If
@ -514,18 +558,8 @@
*/
# include <float.h>
# if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
/* We need to check that <math.h> hasn't already been included earlier
* as it seems it doesn't agree with <fp.h>, yet we should really use
* <fp.h> if possible.
*/
# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
# include <fp.h>
# endif
# else
# include <math.h>
# endif
# include <math.h>
# if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
/* Amiga SAS/C: We must include builtin FPU functions when compiling using
* MATH=68881
@ -626,7 +660,7 @@
#define PNG_BACKGROUND_IS_GRAY 0x800U
#define PNG_HAVE_PNG_SIGNATURE 0x1000U
#define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000U /* Have another chunk after IDAT */
/* 0x4000U (unused) */
#define PNG_WROTE_eXIf 0x4000U
#define PNG_IS_READ_STRUCT 0x8000U /* Else is a write struct */
#ifdef PNG_APNG_SUPPORTED
#define PNG_HAVE_acTL 0x10000U
@ -1320,7 +1354,7 @@ PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_neon,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
#endif
#if PNG_MIPS_MSA_OPT > 0
#if PNG_MIPS_MSA_IMPLEMENTATION == 1
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_msa,(png_row_infop row_info,
png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_msa,(png_row_infop
@ -1337,6 +1371,23 @@ PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_msa,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
#endif
#if PNG_MIPS_MMI_IMPLEMENTATION > 0
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_mmi,(png_row_infop row_info,
png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_mmi,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_mmi,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg3_mmi,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg4_mmi,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_mmi,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_mmi,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
#endif
#if PNG_POWERPC_VSX_OPT > 0
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_vsx,(png_row_infop row_info,
png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
@ -1369,6 +1420,23 @@ PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_sse2,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
#endif
#if PNG_LOONGARCH_LSX_IMPLEMENTATION == 1
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_lsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_lsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_lsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg3_lsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg4_lsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_lsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_lsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
#endif
/* Choose the best filter to use and filter the row data */
PNG_INTERNAL_FUNCTION(void,png_write_find_filter,(png_structrp png_ptr,
png_row_infop row_info),PNG_EMPTY);
@ -1967,7 +2035,7 @@ PNG_INTERNAL_FUNCTION(void,png_ascii_from_fixed,(png_const_structrp png_ptr,
*/
#define PNG_FP_INVALID 512 /* Available for callers as a distinct value */
/* Result codes for the parser (boolean - true meants ok, false means
/* Result codes for the parser (boolean - true means ok, false means
* not ok yet.)
*/
#define PNG_FP_MAYBE 0 /* The number may be valid in the future */
@ -2151,17 +2219,27 @@ PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_neon,
(png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
#endif
#if PNG_MIPS_MSA_OPT > 0
PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_msa,
#if PNG_MIPS_MSA_IMPLEMENTATION == 1
PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_mips,
(png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
#endif
# if PNG_MIPS_MMI_IMPLEMENTATION > 0
PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_mips,
(png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
# endif
# if PNG_INTEL_SSE_IMPLEMENTATION > 0
PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_sse2,
(png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
# endif
#endif
#if PNG_LOONGARCH_LSX_OPT > 0
PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_lsx,
(png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
#endif
PNG_INTERNAL_FUNCTION(png_uint_32, png_check_keyword, (png_structrp png_ptr,
png_const_charp key, png_bytep new_key), PNG_EMPTY);

12
media/libpng/pngread.c
Просмотреть файл

@ -1,7 +1,7 @@
/* pngread.c - read a PNG file
*
* Copyright (c) 2018-2019 Cosmin Truta
* Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -648,7 +648,11 @@ png_read_row(png_structrp png_ptr, png_bytep row, png_bytep dsp_row)
#endif
#ifdef PNG_READ_TRANSFORMS_SUPPORTED
if (png_ptr->transformations)
if (png_ptr->transformations
# ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
|| png_ptr->num_palette_max >= 0
# endif
)
png_do_read_transformations(png_ptr, &row_info);
#endif
@ -865,7 +869,7 @@ png_read_end(png_structrp png_ptr, png_inforp info_ptr)
#ifdef PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED
/* Report invalid palette index; added at libng-1.5.10 */
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE &&
png_ptr->num_palette_max > png_ptr->num_palette)
png_ptr->num_palette_max >= png_ptr->num_palette)
png_benign_error(png_ptr, "Read palette index exceeding num_palette");
#endif
@ -1129,6 +1133,8 @@ void PNGAPI
png_read_png(png_structrp png_ptr, png_inforp info_ptr,
int transforms, voidp params)
{
png_debug(1, "in png_read_png");
if (png_ptr == NULL || info_ptr == NULL)
return;

6
media/libpng/pngrtran.c
Просмотреть файл

@ -1,7 +1,7 @@
/* pngrtran.c - transforms the data in a row for PNG readers
*
* Copyright (c) 2018-2019 Cosmin Truta
* Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -290,7 +290,7 @@ png_set_alpha_mode_fixed(png_structrp png_ptr, int mode,
int compose = 0;
png_fixed_point file_gamma;
png_debug(1, "in png_set_alpha_mode");
png_debug(1, "in png_set_alpha_mode_fixed");
if (png_rtran_ok(png_ptr, 0) == 0)
return;
@ -970,7 +970,7 @@ void PNGFAPI
png_set_rgb_to_gray_fixed(png_structrp png_ptr, int error_action,
png_fixed_point red, png_fixed_point green)
{
png_debug(1, "in png_set_rgb_to_gray");
png_debug(1, "in png_set_rgb_to_gray_fixed");
/* Need the IHDR here because of the check on color_type below. */
/* TODO: fix this */

19
media/libpng/pngrutil.c
Просмотреть файл

@ -1,7 +1,7 @@
/* pngrutil.c - utilities to read a PNG file
*
* Copyright (c) 2018-2022 Cosmin Truta
* Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -26,7 +26,7 @@ png_get_uint_31(png_const_structrp png_ptr, png_const_bytep buf)
if (uval > PNG_UINT_31_MAX)
png_error(png_ptr, "PNG unsigned integer out of range");
return (uval);
return uval;
}
#if defined(PNG_READ_gAMA_SUPPORTED) || defined(PNG_READ_cHRM_SUPPORTED)
@ -140,7 +140,7 @@ png_read_sig(png_structrp png_ptr, png_inforp info_ptr)
if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check) != 0)
{
if (num_checked < 4 &&
png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4))
png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4) != 0)
png_error(png_ptr, "Not a PNG file");
else
png_error(png_ptr, "PNG file corrupted by ASCII conversion");
@ -171,7 +171,7 @@ png_read_chunk_header(png_structrp png_ptr)
/* Put the chunk name into png_ptr->chunk_name. */
png_ptr->chunk_name = PNG_CHUNK_FROM_STRING(buf+4);
png_debug2(0, "Reading %lx chunk, length = %lu",
png_debug2(0, "Reading chunk typeid = 0x%lx, length = %lu",
(unsigned long)png_ptr->chunk_name, (unsigned long)length);
/* Reset the crc and run it over the chunk name. */
@ -238,10 +238,10 @@ png_crc_finish(png_structrp png_ptr, png_uint_32 skip)
else
png_chunk_error(png_ptr, "CRC error");
return (1);
return 1;
}
return (0);
return 0;
}
/* Compare the CRC stored in the PNG file with that calculated by libpng from
@ -277,11 +277,11 @@ png_crc_error(png_structrp png_ptr)
if (need_crc != 0)
{
crc = png_get_uint_32(crc_bytes);
return ((int)(crc != png_ptr->crc));
return crc != png_ptr->crc;
}
else
return (0);
return 0;
}
#if defined(PNG_READ_iCCP_SUPPORTED) || defined(PNG_READ_iTXt_SUPPORTED) ||\
@ -421,8 +421,7 @@ png_inflate_claim(png_structrp png_ptr, png_uint_32 owner)
png_ptr->flags |= PNG_FLAG_ZSTREAM_INITIALIZED;
}
#if ZLIB_VERNUM >= 0x1290 && \
defined(PNG_SET_OPTION_SUPPORTED) && defined(PNG_IGNORE_ADLER32)
#ifdef PNG_DISABLE_ADLER32_CHECK_SUPPORTED
if (((png_ptr->options >> PNG_IGNORE_ADLER32) & 3) == PNG_OPTION_ON)
/* Turn off validation of the ADLER32 checksum in IDAT chunks */
ret = inflateValidate(&png_ptr->zstream, 0);

82
media/libpng/pngset.c
Просмотреть файл

@ -1,7 +1,7 @@
/* pngset.c - storage of image information into info struct
*
* Copyright (c) 2018-2022 Cosmin Truta
* Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -137,46 +137,40 @@ png_set_cHRM_XYZ(png_const_structrp png_ptr, png_inforp info_ptr, double red_X,
#ifdef PNG_eXIf_SUPPORTED
void PNGAPI
png_set_eXIf(png_const_structrp png_ptr, png_inforp info_ptr,
png_bytep eXIf_buf)
png_bytep exif)
{
png_warning(png_ptr, "png_set_eXIf does not work; use png_set_eXIf_1");
PNG_UNUSED(info_ptr)
PNG_UNUSED(eXIf_buf)
PNG_UNUSED(exif)
}
void PNGAPI
png_set_eXIf_1(png_const_structrp png_ptr, png_inforp info_ptr,
png_uint_32 num_exif, png_bytep eXIf_buf)
png_uint_32 num_exif, png_bytep exif)
{
int i;
png_bytep new_exif;
png_debug1(1, "in %s storage function", "eXIf");
if (png_ptr == NULL || info_ptr == NULL)
if (png_ptr == NULL || info_ptr == NULL ||
(png_ptr->mode & PNG_WROTE_eXIf) != 0)
return;
if (info_ptr->exif)
{
png_free(png_ptr, info_ptr->exif);
info_ptr->exif = NULL;
}
new_exif = png_voidcast(png_bytep, png_malloc_warn(png_ptr, num_exif));
info_ptr->num_exif = num_exif;
info_ptr->exif = png_voidcast(png_bytep, png_malloc_warn(png_ptr,
info_ptr->num_exif));
if (info_ptr->exif == NULL)
if (new_exif == NULL)
{
png_warning(png_ptr, "Insufficient memory for eXIf chunk data");
return;
}
memcpy(new_exif, exif, (size_t)num_exif);
png_free_data(png_ptr, info_ptr, PNG_FREE_EXIF, 0);
info_ptr->num_exif = num_exif;
info_ptr->exif = new_exif;
info_ptr->free_me |= PNG_FREE_EXIF;
for (i = 0; i < (int) info_ptr->num_exif; i++)
info_ptr->exif[i] = eXIf_buf[i];
info_ptr->valid |= PNG_INFO_eXIf;
}
#endif /* eXIf */
@ -237,15 +231,13 @@ png_set_hIST(png_const_structrp png_ptr, png_inforp info_ptr,
if (info_ptr->hist == NULL)
{
png_warning(png_ptr, "Insufficient memory for hIST chunk data");
return;
}
info_ptr->free_me |= PNG_FREE_HIST;
for (i = 0; i < info_ptr->num_palette; i++)
info_ptr->hist[i] = hist[i];
info_ptr->free_me |= PNG_FREE_HIST;
info_ptr->valid |= PNG_INFO_hIST;
}
#endif
@ -372,6 +364,8 @@ png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
memcpy(info_ptr->pcal_purpose, purpose, length);
info_ptr->free_me |= PNG_FREE_PCAL;
png_debug(3, "storing X0, X1, type, and nparams in info");
info_ptr->pcal_X0 = X0;
info_ptr->pcal_X1 = X1;
@ -388,7 +382,6 @@ png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
if (info_ptr->pcal_units == NULL)
{
png_warning(png_ptr, "Insufficient memory for pCAL units");
return;
}
@ -400,7 +393,6 @@ png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
if (info_ptr->pcal_params == NULL)
{
png_warning(png_ptr, "Insufficient memory for pCAL params");
return;
}
@ -418,7 +410,6 @@ png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
if (info_ptr->pcal_params[i] == NULL)
{
png_warning(png_ptr, "Insufficient memory for pCAL parameter");
return;
}
@ -426,7 +417,6 @@ png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
}
info_ptr->valid |= PNG_INFO_pCAL;
info_ptr->free_me |= PNG_FREE_PCAL;
}
#endif
@ -483,18 +473,17 @@ png_set_sCAL_s(png_const_structrp png_ptr, png_inforp info_ptr,
if (info_ptr->scal_s_height == NULL)
{
png_free (png_ptr, info_ptr->scal_s_width);
png_free(png_ptr, info_ptr->scal_s_width);
info_ptr->scal_s_width = NULL;
png_warning(png_ptr, "Memory allocation failed while processing sCAL");
return;
}
memcpy(info_ptr->scal_s_height, sheight, lengthh);
info_ptr->valid |= PNG_INFO_sCAL;
info_ptr->free_me |= PNG_FREE_SCAL;
info_ptr->valid |= PNG_INFO_sCAL;
}
# ifdef PNG_FLOATING_POINT_SUPPORTED
@ -630,11 +619,10 @@ png_set_PLTE(png_structrp png_ptr, png_inforp info_ptr,
if (num_palette > 0)
memcpy(png_ptr->palette, palette, (unsigned int)num_palette *
(sizeof (png_color)));
info_ptr->palette = png_ptr->palette;
info_ptr->num_palette = png_ptr->num_palette = (png_uint_16)num_palette;
info_ptr->free_me |= PNG_FREE_PLTE;
info_ptr->valid |= PNG_INFO_PLTE;
}
@ -780,11 +768,11 @@ png_set_text_2(png_const_structrp png_ptr, png_inforp info_ptr,
{
int i;
png_debug1(1, "in %lx storage function", png_ptr == NULL ? 0xabadca11U :
(unsigned long)png_ptr->chunk_name);
png_debug1(1, "in text storage function, chunk typeid = 0x%lx",
png_ptr == NULL ? 0xabadca11UL : (unsigned long)png_ptr->chunk_name);
if (png_ptr == NULL || info_ptr == NULL || num_text <= 0 || text_ptr == NULL)
return(0);
return 0;
/* Make sure we have enough space in the "text" array in info_struct
* to hold all of the incoming text_ptr objects. This compare can't overflow
@ -964,7 +952,7 @@ png_set_text_2(png_const_structrp png_ptr, png_inforp info_ptr,
png_debug1(3, "transferred text chunk %d", info_ptr->num_text);
}
return(0);
return 0;
}
#endif
@ -1025,8 +1013,8 @@ png_set_tRNS(png_structrp png_ptr, png_inforp info_ptr,
png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH));
memcpy(info_ptr->trans_alpha, trans_alpha, (size_t)num_trans);
info_ptr->valid |= PNG_INFO_tRNS;
info_ptr->free_me |= PNG_FREE_TRNS;
info_ptr->valid |= PNG_INFO_tRNS;
}
png_ptr->trans_alpha = info_ptr->trans_alpha;
}
@ -1059,8 +1047,8 @@ png_set_tRNS(png_structrp png_ptr, png_inforp info_ptr,
if (num_trans != 0)
{
info_ptr->valid |= PNG_INFO_tRNS;
info_ptr->free_me |= PNG_FREE_TRNS;
info_ptr->valid |= PNG_INFO_tRNS;
}
}
#endif
@ -1080,6 +1068,8 @@ png_set_sPLT(png_const_structrp png_ptr,
{
png_sPLT_tp np;
png_debug1(1, "in %s storage function", "sPLT");
if (png_ptr == NULL || info_ptr == NULL || nentries <= 0 || entries == NULL)
return;
@ -1094,11 +1084,11 @@ png_set_sPLT(png_const_structrp png_ptr,
{
/* Out of memory or too many chunks */
png_chunk_report(png_ptr, "too many sPLT chunks", PNG_CHUNK_WRITE_ERROR);
return;
}
png_free(png_ptr, info_ptr->splt_palettes);
info_ptr->splt_palettes = np;
info_ptr->free_me |= PNG_FREE_SPLT;
@ -1392,11 +1382,11 @@ png_set_unknown_chunks(png_const_structrp png_ptr,
{
png_chunk_report(png_ptr, "too many unknown chunks",
PNG_CHUNK_WRITE_ERROR);
return;
}
png_free(png_ptr, info_ptr->unknown_chunks);
info_ptr->unknown_chunks = np; /* safe because it is initialized */
info_ptr->free_me |= PNG_FREE_UNKN;
@ -1694,7 +1684,7 @@ void PNGAPI
png_set_rows(png_const_structrp png_ptr, png_inforp info_ptr,
png_bytepp row_pointers)
{
png_debug1(1, "in %s storage function", "rows");
png_debug(1, "in png_set_rows");
if (png_ptr == NULL || info_ptr == NULL)
return;
@ -1713,6 +1703,8 @@ png_set_rows(png_const_structrp png_ptr, png_inforp info_ptr,
void PNGAPI
png_set_compression_buffer_size(png_structrp png_ptr, size_t size)
{
png_debug(1, "in png_set_compression_buffer_size");
if (png_ptr == NULL)
return;
@ -1784,6 +1776,8 @@ void PNGAPI
png_set_user_limits(png_structrp png_ptr, png_uint_32 user_width_max,
png_uint_32 user_height_max)
{
png_debug(1, "in png_set_user_limits");
/* 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 0x7fffffff.
@ -1799,6 +1793,8 @@ png_set_user_limits(png_structrp png_ptr, png_uint_32 user_width_max,
void PNGAPI
png_set_chunk_cache_max(png_structrp png_ptr, png_uint_32 user_chunk_cache_max)
{
png_debug(1, "in png_set_chunk_cache_max");
if (png_ptr != NULL)
png_ptr->user_chunk_cache_max = user_chunk_cache_max;
}
@ -1808,6 +1804,8 @@ void PNGAPI
png_set_chunk_malloc_max(png_structrp png_ptr,
png_alloc_size_t user_chunk_malloc_max)
{
png_debug(1, "in png_set_chunk_malloc_max");
if (png_ptr != NULL)
png_ptr->user_chunk_malloc_max = user_chunk_malloc_max;
}

14
media/libpng/pngtrans.c
Просмотреть файл

@ -1,7 +1,7 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers)
*
* Copyright (c) 2018 Cosmin Truta
* Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -103,10 +103,10 @@ png_set_interlace_handling(png_structrp png_ptr)
if (png_ptr != 0 && png_ptr->interlaced != 0)
{
png_ptr->transformations |= PNG_INTERLACE;
return (7);
return 7;
}
return (1);
return 1;
}
#endif
@ -498,6 +498,8 @@ png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start)
png_bytep dp = row; /* destination pointer */
png_bytep ep = row + row_info->rowbytes; /* One beyond end of row */
png_debug(1, "in png_do_strip_channel");
/* At the start sp will point to the first byte to copy and dp to where
* it is copied to. ep always points just beyond the end of the row, so
* the loop simply copies (channels-1) channels until sp reaches ep.
@ -698,6 +700,8 @@ png_do_bgr(png_row_infop row_info, png_bytep row)
void /* PRIVATE */
png_do_check_palette_indexes(png_structrp png_ptr, png_row_infop row_info)
{
png_debug(1, "in png_do_check_palette_indexes");
if (png_ptr->num_palette < (1 << row_info->bit_depth) &&
png_ptr->num_palette > 0) /* num_palette can be 0 in MNG files */
{
@ -708,7 +712,7 @@ png_do_check_palette_indexes(png_structrp png_ptr, png_row_infop row_info)
* forms produced on either GCC or MSVC.
*/
int padding = PNG_PADBITS(row_info->pixel_depth, row_info->width);
png_bytep rp = png_ptr->row_buf + row_info->rowbytes - 1;
png_bytep rp = png_ptr->row_buf + row_info->rowbytes;
switch (row_info->bit_depth)
{
@ -833,7 +837,7 @@ png_voidp PNGAPI
png_get_user_transform_ptr(png_const_structrp png_ptr)
{
if (png_ptr == NULL)
return (NULL);
return NULL;
return png_ptr->user_transform_ptr;
}

27
media/libpng/pngwrite.c
Просмотреть файл

@ -1,7 +1,7 @@
/* pngwrite.c - general routines to write a PNG file
*
* Copyright (c) 2018-2022 Cosmin Truta
* Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -243,7 +243,10 @@ png_write_info(png_structrp png_ptr, png_const_inforp info_ptr)
#ifdef PNG_WRITE_eXIf_SUPPORTED
if ((info_ptr->valid & PNG_INFO_eXIf) != 0)
{
png_write_eXIf(png_ptr, info_ptr->exif, info_ptr->num_exif);
png_ptr->mode |= PNG_WROTE_eXIf;
}
#endif
#ifdef PNG_WRITE_hIST_SUPPORTED
@ -375,7 +378,8 @@ png_write_end(png_structrp png_ptr, png_inforp info_ptr)
#endif
#ifdef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
if (png_ptr->num_palette_max > png_ptr->num_palette)
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE &&
png_ptr->num_palette_max >= png_ptr->num_palette)
png_benign_error(png_ptr, "Wrote palette index exceeding num_palette");
#endif
@ -448,8 +452,9 @@ png_write_end(png_structrp png_ptr, png_inforp info_ptr)
#endif
#ifdef PNG_WRITE_eXIf_SUPPORTED
if ((info_ptr->valid & PNG_INFO_eXIf) != 0)
png_write_eXIf(png_ptr, info_ptr->exif, info_ptr->num_exif);
if ((info_ptr->valid & PNG_INFO_eXIf) != 0 &&
(png_ptr->mode & PNG_WROTE_eXIf) == 0)
png_write_eXIf(png_ptr, info_ptr->exif, info_ptr->num_exif);
#endif
#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
@ -719,12 +724,12 @@ png_write_row(png_structrp png_ptr, png_const_bytep row)
/* 1.5.6: moved from png_struct to be a local structure: */
png_row_info row_info;
if (png_ptr == NULL)
return;
png_debug2(1, "in png_write_row (row %u, pass %d)",
png_ptr->row_number, png_ptr->pass);
if (png_ptr == NULL)
return;
/* Initialize transformations and other stuff if first time */
if (png_ptr->row_number == 0 && png_ptr->pass == 0)
{
@ -1215,6 +1220,8 @@ png_set_compression_strategy(png_structrp png_ptr, int strategy)
void PNGAPI
png_set_compression_window_bits(png_structrp png_ptr, int window_bits)
{
png_debug(1, "in png_set_compression_window_bits");
if (png_ptr == NULL)
return;
@ -1298,6 +1305,8 @@ png_set_text_compression_strategy(png_structrp png_ptr, int strategy)
void PNGAPI
png_set_text_compression_window_bits(png_structrp png_ptr, int window_bits)
{
png_debug(1, "in png_set_text_compression_window_bits");
if (png_ptr == NULL)
return;
@ -1335,6 +1344,8 @@ png_set_text_compression_method(png_structrp png_ptr, int method)
void PNGAPI
png_set_write_status_fn(png_structrp png_ptr, png_write_status_ptr write_row_fn)
{
png_debug(1, "in png_set_write_status_fn");
if (png_ptr == NULL)
return;
@ -1362,6 +1373,8 @@ void PNGAPI
png_write_png(png_structrp png_ptr, png_inforp info_ptr,
int transforms, voidp params)
{
png_debug(1, "in png_write_png");
if (png_ptr == NULL || info_ptr == NULL)
return;

10
media/libpng/pngwutil.c
Просмотреть файл

@ -1,7 +1,7 @@
/* pngwutil.c - utilities to write a PNG file
*
* Copyright (c) 2018-2022 Cosmin Truta
* Copyright (c) 2018-2024 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@ -2418,7 +2418,7 @@ png_setup_sub_row(png_structrp png_ptr, png_uint_32 bpp,
break;
}
return (sum);
return sum;
}
static void /* PRIVATE */
@ -2468,7 +2468,7 @@ png_setup_up_row(png_structrp png_ptr, size_t row_bytes, size_t lmins)
break;
}
return (sum);
return sum;
}
static void /* PRIVATE */
png_setup_up_row_only(png_structrp png_ptr, size_t row_bytes)
@ -2524,7 +2524,7 @@ png_setup_avg_row(png_structrp png_ptr, png_uint_32 bpp,
break;
}
return (sum);
return sum;
}
static void /* PRIVATE */
png_setup_avg_row_only(png_structrp png_ptr, png_uint_32 bpp,
@ -2607,7 +2607,7 @@ png_setup_paeth_row(png_structrp png_ptr, png_uint_32 bpp,
break;
}
return (sum);
return sum;
}
static void /* PRIVATE */
png_setup_paeth_row_only(png_structrp png_ptr, png_uint_32 bpp,