diff options
Diffstat (limited to 'src/3rdparty/angle/src/libGLESv2/renderer/loadimageSSE2.cpp')
-rw-r--r-- | src/3rdparty/angle/src/libGLESv2/renderer/loadimageSSE2.cpp | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libGLESv2/renderer/loadimageSSE2.cpp b/src/3rdparty/angle/src/libGLESv2/renderer/loadimageSSE2.cpp new file mode 100644 index 0000000000..dcf347d421 --- /dev/null +++ b/src/3rdparty/angle/src/libGLESv2/renderer/loadimageSSE2.cpp @@ -0,0 +1,113 @@ +#include "precompiled.h" +// +// Copyright (c) 2002-2014 The ANGLE Project Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. +// + +// loadimageSSE2.cpp: Defines image loading functions. It's +// in a separated file for GCC, which can enable SSE usage only per-file, +// not for code blocks that use SSE2 explicitly. + +#include "libGLESv2/renderer/loadimage.h" + +#if !defined(__SSE2__) && (defined(_M_X64) || _M_IX86_FP == 2) +#define __SSE2__ +#endif + +namespace rx +{ + +void LoadA8ToBGRA8_SSE2(size_t width, size_t height, size_t depth, + const uint8_t *input, size_t inputRowPitch, size_t inputDepthPitch, + uint8_t *output, size_t outputRowPitch, size_t outputDepthPitch) +{ +#ifdef __SSE2__ + __m128i zeroWide = _mm_setzero_si128(); + + for (size_t z = 0; z < depth; z++) + { + for (size_t y = 0; y < height; y++) + { + const uint8_t *source = OffsetDataPointer<uint8_t>(input, y, z, inputRowPitch, inputDepthPitch); + uint32_t *dest = OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch); + + size_t x = 0; + + // Make output writes aligned + for (; ((reinterpret_cast<intptr_t>(&dest[x]) & 0xF) != 0 && x < width); x++) + { + dest[x] = static_cast<uint32_t>(source[x]) << 24; + } + + for (; x + 7 < width; x += 8) + { + __m128i sourceData = _mm_loadl_epi64(reinterpret_cast<const __m128i*>(&source[x])); + // Interleave each byte to 16bit, make the lower byte to zero + sourceData = _mm_unpacklo_epi8(zeroWide, sourceData); + // Interleave each 16bit to 32bit, make the lower 16bit to zero + __m128i lo = _mm_unpacklo_epi16(zeroWide, sourceData); + __m128i hi = _mm_unpackhi_epi16(zeroWide, sourceData); + + _mm_store_si128(reinterpret_cast<__m128i*>(&dest[x]), lo); + _mm_store_si128(reinterpret_cast<__m128i*>(&dest[x + 4]), hi); + } + + // Handle the remainder + for (; x < width; x++) + { + dest[x] = static_cast<uint32_t>(source[x]) << 24; + } + } + } +#endif +} + +void LoadRGBA8ToBGRA8_SSE2(size_t width, size_t height, size_t depth, + const uint8_t *input, size_t inputRowPitch, size_t inputDepthPitch, + uint8_t *output, size_t outputRowPitch, size_t outputDepthPitch) +{ +#ifdef __SSE2__ + __m128i brMask = _mm_set1_epi32(0x00ff00ff); + + for (size_t z = 0; z < depth; z++) + { + for (size_t y = 0; y < height; y++) + { + const uint32_t *source = OffsetDataPointer<uint32_t>(input, y, z, inputRowPitch, inputDepthPitch); + uint32_t *dest = OffsetDataPointer<uint32_t>(output, y, z, outputRowPitch, outputDepthPitch); + + size_t x = 0; + + // Make output writes aligned + for (; ((reinterpret_cast<intptr_t>(&dest[x]) & 15) != 0) && x < width; x++) + { + uint32_t rgba = source[x]; + dest[x] = (_rotl(rgba, 16) & 0x00ff00ff) | (rgba & 0xff00ff00); + } + + for (; x + 3 < width; x += 4) + { + __m128i sourceData = _mm_loadu_si128(reinterpret_cast<const __m128i*>(&source[x])); + // Mask out g and a, which don't change + __m128i gaComponents = _mm_andnot_si128(brMask, sourceData); + // Mask out b and r + __m128i brComponents = _mm_and_si128(sourceData, brMask); + // Swap b and r + __m128i brSwapped = _mm_shufflehi_epi16(_mm_shufflelo_epi16(brComponents, _MM_SHUFFLE(2, 3, 0, 1)), _MM_SHUFFLE(2, 3, 0, 1)); + __m128i result = _mm_or_si128(gaComponents, brSwapped); + _mm_store_si128(reinterpret_cast<__m128i*>(&dest[x]), result); + } + + // Perform leftover writes + for (; x < width; x++) + { + uint32_t rgba = source[x]; + dest[x] = (_rotl(rgba, 16) & 0x00ff00ff) | (rgba & 0xff00ff00); + } + } + } +#endif +} + +} |