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3rdparty: update libpng 1.6.34
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‎3rdparty/libpng/CHANGES

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‎3rdparty/libpng/CMakeLists.txt

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@@ -37,9 +37,9 @@ if(ARM OR AARCH64)
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endif()
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endif()
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if(ENABLE_SSE
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if(";${CPU_BASELINE_FINAL};" MATCHES "SSE2"
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AND (NOT MSVC OR (MSVC_VERSION GREATER 1799))) # MSVS2013+ (issue #7232)
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list(APPEND lib_srcs contrib/intel/intel_init.c contrib/intel/filter_sse2_intrinsics.c)
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list(APPEND lib_srcs intel/intel_init.c intel/filter_sse2_intrinsics.c)
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add_definitions(-DPNG_INTEL_SSE)
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endif()
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‎3rdparty/libpng/LICENSE

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@@ -10,8 +10,8 @@ this sentence.
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This code is released under the libpng license.
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libpng versions 1.0.7, July 1, 2000 through 1.6.24, August 4, 2016 are
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Copyright (c) 2000-2002, 2004, 2006-2016 Glenn Randers-Pehrson, are
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libpng versions 1.0.7, July 1, 2000 through 1.6.34, September 29, 2017 are
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Copyright (c) 2000-2002, 2004, 2006-2017 Glenn Randers-Pehrson, are
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derived from libpng-1.0.6, and are distributed according to the same
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disclaimer and license as libpng-1.0.6 with the following individuals
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added to the list of Contributing Authors:
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Cosmin Truta
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Gilles Vollant
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James Yu
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Mandar Sahastrabuddhe
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Google Inc.
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Vadim Barkov
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and with the following additions to the disclaimer:
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@@ -127,4 +130,4 @@ any encryption software. See the EAR, paragraphs 734.3(b)(3) and
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Glenn Randers-Pehrson
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glennrp at users.sourceforge.net
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August 4, 2016
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September 29, 2017

‎3rdparty/libpng/README

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README for libpng version 1.6.24 - August 4, 2016 (shared library 16.0)
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README for libpng version 1.6.34 - September 29, 2017 (shared library 16.0)
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See the note about version numbers near the top of png.h
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See INSTALL for instructions on how to install libpng.
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png_uint_32, which will affect shared-library applications that use
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this function.
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To avoid problems with changes to the internals of png info_struct,
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To avoid problems with changes to the internals of the png info_struct,
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new APIs have been made available in 0.95 to avoid direct application
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access to info_ptr. These functions are the png_set_<chunk> and
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png_get_<chunk> functions. These functions should be used when
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You may also want a copy of the PNG specification. It is available
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as an RFC, a W3C Recommendation, and an ISO/IEC Standard. You can find
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these at http://www.libpng.org/pub/png/documents/
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these at http://www.libpng.org/pub/png/pngdocs.html .
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This code is currently being archived at libpng.sf.net in the
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[DOWNLOAD] area, and at ftp://ftp.simplesystems.org. If you can't find it
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in any of those places, e-mail me, and I'll help you find it.
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This code is currently being archived at libpng.sourceforge.io in the
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[DOWNLOAD] area, and at http://libpng.download/src . If you
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can't find it in any of those places, e-mail me, and I'll help you find it.
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I am not a lawyer, but I believe that the Export Control Classification
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Number (ECCN) for libpng is EAR99, which means not subject to export
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pngwtran.c => Write data transformations
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pngwutil.c => Write utility functions
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arm => Contains optimized code for the ARM platform
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powerpc => Contains optimized code for the PowerPC platform
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contrib => Contributions
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arm-neon => Optimized code for ARM-NEON platform
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powerpc-vsx => Optimized code for POWERPC-VSX platform
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examples => Example programs
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gregbook => source code for PNG reading and writing, from
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Greg Roelofs' "PNG: The Definitive Guide",
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O'Reilly, 1999
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libtests => Test programs
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mips-msa => Optimized code for MIPS-MSA platform
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pngminim => Minimal decoder, encoder, and progressive decoder
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programs demonstrating use of pngusr.dfa
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pngminus => Simple pnm2png and png2pnm programs
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pngsuite => Test images
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testpngs
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tools => Various tools
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visupng => Contains a MSVC workspace for VisualPng
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intel => Optimized code for INTEL-SSE2 platform
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mips => Optimized code for MIPS platform
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projects => Contains project files and workspaces for
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building a DLL
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owatcom => Contains a WATCOM project for building libpng

‎3rdparty/libpng/arm/filter_neon.S

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/* filter_neon.S - NEON optimised filter functions
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*
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* Copyright (c) 2014 Glenn Randers-Pehrson
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* Copyright (c) 2014,2017 Glenn Randers-Pehrson
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* Written by Mans Rullgard, 2011.
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* Last changed in libpng 1.6.16 [December 22, 2014]
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* Last changed in libpng 1.6.31 [July 27, 2017]
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*
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* This code is released under the libpng license.
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* For conditions of distribution and use, see the disclaimer
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#define PNG_VERSION_INFO_ONLY
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#include "../pngpriv.h"
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#if defined(__linux__) && defined(__ELF__)
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#if (defined(__linux__) || defined(__FreeBSD__)) && defined(__ELF__)
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.section .note.GNU-stack,"",%progbits /* mark stack as non-executable */
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#endif
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‎3rdparty/libpng/contrib/intel/INSTALL

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