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Move sse opts into contrib/intel

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This commit is contained in:
Matt Sarett 2016-02-18 12:43:50 -05:00
parent fb375429b5
commit 342c4eab2a
7 changed files with 73 additions and 44 deletions
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5
Makefile.am
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@ -83,11 +83,6 @@ libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += arm/arm_init.c\
arm/filter_neon.S arm/filter_neon_intrinsics.c
endif
if PNG_INTEL_SSE
libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += intel/intel_init.c\
intel/filter_sse2_intrinsics.c
endif
nodist_libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES = pnglibconf.h
libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS = -no-undefined -export-dynamic \

35
configure.ac
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@ -314,41 +314,6 @@ AM_CONDITIONAL([PNG_ARM_NEON],
*) test "$enable_arm_neon" != '';;
esac])
# INTEL
# ===
#
# INTEL SSE (SIMD) support.
AC_ARG_ENABLE([intel-sse],
AS_HELP_STRING([[[--enable-intel-sse]]],
[Enable Intel SSE optimizations: =no/off, yes/on:]
[no/off: disable the optimizations;]
[yes/on: enable the optimizations.]
[If not specified: determined by the compiler.]),
[case "$enableval" in
no|off)
# disable the default enabling:
AC_DEFINE([PNG_INTEL_SSE_OPT], [0],
[Disable Intel SSE optimizations])
# Prevent inclusion of the assembler files below:
enable_intel_sse=no;;
yes|on)
AC_DEFINE([PNG_INTEL_SSE_OPT], [1],
[Enable Intel SSE optimizations]);;
*)
AC_MSG_ERROR([--enable-intel-sse=${enable_intel_sse}: invalid value])
esac])
# Add Intel specific files to all builds where the host_cpu is Intel ('x86*')
# or where Intel optimizations were explicitly requested (this allows a
# fallback if a future host CPU does not match 'x86*')
AM_CONDITIONAL([PNG_INTEL_SSE],
[test "$enable_intel_sse" != 'no' &&
case "$host_cpu" in
i?86|x86_64) :;;
*) test "$enable_intel_sse" != '';;
esac])
AC_MSG_NOTICE([[Extra options for compiler: $PNG_COPTS]])
# Config files, substituting as above

17
contrib/intel/Makefile.am.patch Normal file
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@ -0,0 +1,17 @@
#
# Copyright (c) 2016 Google, Inc.
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
#
# In order to compile Intel SSE optimizations for libpng, please add
# the following code to Makefile.am directly beneath the
# "if PNG_ARM_NEON ... endif" statement.
if PNG_INTEL_SSE
libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += intel/intel_init.c\
intel/filter_sse2_intrinsics.c
endif

46
contrib/intel/configure.ac.patch Normal file
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@ -0,0 +1,46 @@
#
# Copyright (c) 2016 Google, Inc.
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
#
# In order to compile Intel SSE optimizations for libpng, please add
# the following code to configure.ac under HOST SPECIFIC OPTIONS
# directly beneath the section for ARM.
# INTEL
# ===
#
# INTEL SSE (SIMD) support.
AC_ARG_ENABLE([intel-sse],
AS_HELP_STRING([[[--enable-intel-sse]]],
[Enable Intel SSE optimizations: =no/off, yes/on:]
[no/off: disable the optimizations;]
[yes/on: enable the optimizations.]
[If not specified: determined by the compiler.]),
[case "$enableval" in
no|off)
# disable the default enabling:
AC_DEFINE([PNG_INTEL_SSE_OPT], [0],
[Disable Intel SSE optimizations])
# Prevent inclusion of the assembler files below:
enable_intel_sse=no;;
yes|on)
AC_DEFINE([PNG_INTEL_SSE_OPT], [1],
[Enable Intel SSE optimizations]);;
*)
AC_MSG_ERROR([--enable-intel-sse=${enable_intel_sse}: invalid value])
esac])
# Add Intel specific files to all builds where the host_cpu is Intel ('x86*')
# or where Intel optimizations were explicitly requested (this allows a
# fallback if a future host CPU does not match 'x86*')
AM_CONDITIONAL([PNG_INTEL_SSE],
[test "$enable_intel_sse" != 'no' &&
case "$host_cpu" in
i?86|x86_64) :;;
*) test "$enable_intel_sse" != '';;
esac])

0
intel/filter_sse2_intrinsics.c → contrib/intel/filter_sse2_intrinsics.c
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0
intel/intel_init.c → contrib/intel/intel_init.c
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6
pngpriv.h
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@ -183,12 +183,18 @@
#endif /* PNG_ARM_NEON_OPT > 0 */
#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__) || \
defined(__SSE2__) || defined(_M_X64) || defined(_M_AMD64) || \
(defined(_M_IX86_FP) && _M_IX86_FP >= 2)
# define PNG_INTEL_SSE_OPT 1
# endif
# endif
#endif
#if PNG_INTEL_SSE_OPT > 0
# ifndef PNG_INTEL_SSE_IMPLEMENTATION