| /* intel/check.h - SSE2 optimized filter functions |
| * |
| * Copyright (c) 2018 Cosmin Truta |
| * Copyright (c) 2016-2017 Glenn Randers-Pehrson |
| * Written by Mike Klein and Matt Sarett, Google, Inc. |
| * Derived from arm/arm_init.c |
| * |
| * This code is released under the libpng license. |
| * For conditions of distribution and use, see the disclaimer |
| * and license in png.h |
| */ |
| /* PNG_INTEL_SSE_IMPLEMENTATION is used in the actual implementation to selecct |
| * the correct code. |
| */ |
| #if defined(__SSE4_1__) || defined(__AVX__) |
| /* We are not actually using AVX, but checking for AVX is the best way we can |
| * detect SSE4.1 and SSSE3 on MSVC. |
| */ |
| # define PNG_INTEL_SSE_IMPLEMENTATION 3 |
| #elif defined(__SSSE3__) |
| # define PNG_INTEL_SSE_IMPLEMENTATION 2 |
| #elif defined(__SSE2__) || defined(_M_X64) || defined(_M_AMD64) ||\ |
| (defined(_M_IX86_FP) && _M_IX86_FP >= 2) |
| # define PNG_INTEL_SSE_IMPLEMENTATION 1 |
| #else |
| # define PNG_INTEL_SSE_IMPLEMENTATION 0 |
| #endif |
| |
| #if PNG_INTEL_SSE_IMPLEMENTATION > 0 |
| # define PNG_TARGET_CODE_IMPLEMENTATION "intel/intel_init.c" |
| /*PNG_TARGET_STORES_DATA*/ |
| # define PNG_TARGET_IMPLEMENTS_FILTERS |
| /*PNG_TARGET_IMPLEMENTS_EXPAND_PALETTE*/ |
| # define PNG_TARGET_ROW_ALIGNMENT 16 |
| #endif /* PNG_INTEL_SSE_IMPLEMENTATION > 0 */ |
