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0094fdbf37
Co-authored-by: Cosmin Truta <ctruta@gmail.com> Signed-off-by: Cosmin Truta <ctruta@gmail.com>
36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
/* intel/check.h - SSE2 optimized filter functions
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*
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* Copyright (c) 2018 Cosmin Truta
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* Copyright (c) 2016-2017 Glenn Randers-Pehrson
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* Written by Mike Klein and Matt Sarett, Google, Inc.
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* Derived from arm/arm_init.c
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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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* and license in png.h
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*/
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/* PNG_INTEL_SSE_IMPLEMENTATION is used in the actual implementation to select
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* the correct code.
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*/
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#if defined(__SSE4_1__) || defined(__AVX__)
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/* We are not actually using AVX, but checking for AVX is the best way we can
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* detect SSE4.1 and SSSE3 on MSVC.
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*/
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# define PNG_INTEL_SSE_IMPLEMENTATION 3
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#elif defined(__SSSE3__)
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# define PNG_INTEL_SSE_IMPLEMENTATION 2
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#elif defined(__SSE2__) || defined(_M_X64) || defined(_M_AMD64) ||\
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(defined(_M_IX86_FP) && _M_IX86_FP >= 2)
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# define PNG_INTEL_SSE_IMPLEMENTATION 1
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#else
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# define PNG_INTEL_SSE_IMPLEMENTATION 0
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#endif
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#if PNG_INTEL_SSE_IMPLEMENTATION > 0
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# define PNG_TARGET_CODE_IMPLEMENTATION "intel/intel_init.c"
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/*PNG_TARGET_STORES_DATA*/
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# define PNG_TARGET_IMPLEMENTS_FILTERS
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/*PNG_TARGET_IMPLEMENTS_EXPAND_PALETTE*/
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# define PNG_TARGET_ROW_ALIGNMENT 16
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#endif /* PNG_INTEL_SSE_IMPLEMENTATION > 0 */
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