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comparison: gfx/angle/src/libGLESv2/renderer/ImageSSE2.cpp
gfx/angle/src/libGLESv2/renderer/ImageSSE2.cpp
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| -1:000000000000 | 0:c7dc84879cda |
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| 1 #include "precompiled.h" | |
| 2 // | |
| 3 // Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved. | |
| 4 // Use of this source code is governed by a BSD-style license that can be | |
| 5 // found in the LICENSE file. | |
| 6 // | |
| 7 | |
| 8 // ImageSSE2.cpp: Implements SSE2-based functions of rx::Image class. It's | |
| 9 // in a separated file for GCC, which can enable SSE usage only per-file, | |
| 10 // not for code blocks that use SSE2 explicitly. | |
| 11 | |
| 12 #include "libGLESv2/Texture.h" | |
| 13 #include "libGLESv2/renderer/Image.h" | |
| 14 | |
| 15 namespace rx | |
| 16 { | |
| 17 | |
| 18 void Image::loadRGBAUByteDataToBGRASSE2(GLsizei width, GLsizei height, | |
| 19 int inputPitch, const void *input, size_t outputPitch, void *output) | |
| 20 { | |
| 21 const unsigned int *source = NULL; | |
| 22 unsigned int *dest = NULL; | |
| 23 __m128i brMask = _mm_set1_epi32(0x00ff00ff); | |
| 24 | |
| 25 for (int y = 0; y < height; y++) | |
| 26 { | |
| 27 source = reinterpret_cast<const unsigned int*>(static_cast<const unsigned char*>(input) + y * inputPitch); | |
| 28 dest = reinterpret_cast<unsigned int*>(static_cast<unsigned char*>(output) + y * outputPitch); | |
| 29 int x = 0; | |
| 30 | |
| 31 // Make output writes aligned | |
| 32 for (x = 0; ((reinterpret_cast<intptr_t>(&dest[x]) & 15) != 0) && x < width; x++) | |
| 33 { | |
| 34 unsigned int rgba = source[x]; | |
| 35 dest[x] = (_rotl(rgba, 16) & 0x00ff00ff) | (rgba & 0xff00ff00); | |
| 36 } | |
| 37 | |
| 38 for (; x + 3 < width; x += 4) | |
| 39 { | |
| 40 __m128i sourceData = _mm_loadu_si128(reinterpret_cast<const __m128i*>(&source[x])); | |
| 41 // Mask out g and a, which don't change | |
| 42 __m128i gaComponents = _mm_andnot_si128(brMask, sourceData); | |
| 43 // Mask out b and r | |
| 44 __m128i brComponents = _mm_and_si128(sourceData, brMask); | |
| 45 // Swap b and r | |
| 46 __m128i brSwapped = _mm_shufflehi_epi16(_mm_shufflelo_epi16(brComponents, _MM_SHUFFLE(2, 3, 0, 1)), _MM_SHUFFLE(2, 3, 0, 1)); | |
| 47 __m128i result = _mm_or_si128(gaComponents, brSwapped); | |
| 48 _mm_store_si128(reinterpret_cast<__m128i*>(&dest[x]), result); | |
| 49 } | |
| 50 | |
| 51 // Perform leftover writes | |
| 52 for (; x < width; x++) | |
| 53 { | |
| 54 unsigned int rgba = source[x]; | |
| 55 dest[x] = (_rotl(rgba, 16) & 0x00ff00ff) | (rgba & 0xff00ff00); | |
| 56 } | |
| 57 } | |
| 58 } | |
| 59 | |
| 60 void Image::loadAlphaDataToBGRASSE2(GLsizei width, GLsizei height, | |
| 61 int inputPitch, const void *input, size_t outputPitch, void *output) | |
| 62 { | |
| 63 const unsigned char *source = NULL; | |
| 64 unsigned int *dest = NULL; | |
| 65 __m128i zeroWide = _mm_setzero_si128(); | |
| 66 | |
| 67 for (int y = 0; y < height; y++) | |
| 68 { | |
| 69 source = static_cast<const unsigned char*>(input) + y * inputPitch; | |
| 70 dest = reinterpret_cast<unsigned int*>(static_cast<unsigned char*>(output) + y * outputPitch); | |
| 71 | |
| 72 int x; | |
| 73 // Make output writes aligned | |
| 74 for (x = 0; ((reinterpret_cast<intptr_t>(&dest[x]) & 0xF) != 0 && x < width); x++) | |
| 75 { | |
| 76 dest[x] = static_cast<unsigned int>(source[x]) << 24; | |
| 77 } | |
| 78 | |
| 79 for (; x + 7 < width; x += 8) | |
| 80 { | |
| 81 __m128i sourceData = _mm_loadl_epi64(reinterpret_cast<const __m128i*>(&source[x])); | |
| 82 // Interleave each byte to 16bit, make the lower byte to zero | |
| 83 sourceData = _mm_unpacklo_epi8(zeroWide, sourceData); | |
| 84 // Interleave each 16bit to 32bit, make the lower 16bit to zero | |
| 85 __m128i lo = _mm_unpacklo_epi16(zeroWide, sourceData); | |
| 86 __m128i hi = _mm_unpackhi_epi16(zeroWide, sourceData); | |
| 87 | |
| 88 _mm_store_si128(reinterpret_cast<__m128i*>(&dest[x]), lo); | |
| 89 _mm_store_si128(reinterpret_cast<__m128i*>(&dest[x + 4]), hi); | |
| 90 } | |
| 91 | |
| 92 // Handle the remainder | |
| 93 for (; x < width; x++) | |
| 94 { | |
| 95 dest[x] = static_cast<unsigned int>(source[x]) << 24; | |
| 96 } | |
| 97 } | |
| 98 } | |
| 99 | |
| 100 } |
