media/base/simd/convert_yuv_to_rgb_x86.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #if defined(_MSC_VER)
   6 #include <intrin.h>
   7 #else
   8 #include <mmintrin.h>
   9 #endif
  10
  11 #include "media/base/simd/convert_yuv_to_rgb.h"
  12 #include "media/base/yuv_convert.h"
  13
  14 namespace media {
  15
  16 void ConvertYUVToRGB32_MMX(const uint8* yplane,
  17                            const uint8* uplane,
  18                            const uint8* vplane,
  19                            uint8* rgbframe,
  20                            int width,
  21                            int height,
  22                            int ystride,
  23                            int uvstride,
  24                            int rgbstride,
  25                            YUVType yuv_type) {
  26   unsigned int y_shift = yuv_type;
  27   for (int y = 0; y < height; ++y) {
  28     uint8* rgb_row = rgbframe + y * rgbstride;
  29     const uint8* y_ptr = yplane + y * ystride;
  30     const uint8* u_ptr = uplane + (y >> y_shift) * uvstride;
  31     const uint8* v_ptr = vplane + (y >> y_shift) * uvstride;
  32
  33     ConvertYUVToRGB32Row_MMX(y_ptr,
  34                              u_ptr,
  35                              v_ptr,
  36                              rgb_row,
  37                              width);
  38   }
  39
  40   EmptyRegisterState();
  41 }
  42
  43 void ConvertYUVAToARGB_MMX(const uint8* yplane,
  44                            const uint8* uplane,
  45                            const uint8* vplane,
  46                            const uint8* aplane,
  47                            uint8* rgbframe,
  48                            int width,
  49                            int height,
  50                            int ystride,
  51                            int uvstride,
  52                            int astride,
  53                            int rgbstride,
  54                            YUVType yuv_type) {
  55   unsigned int y_shift = yuv_type;
  56   for (int y = 0; y < height; ++y) {
  57     uint8* rgb_row = rgbframe + y * rgbstride;
  58     const uint8* y_ptr = yplane + y * ystride;
  59     const uint8* u_ptr = uplane + (y >> y_shift) * uvstride;
  60     const uint8* v_ptr = vplane + (y >> y_shift) * uvstride;
  61     const uint8* a_ptr = aplane + y * astride;
  62
  63     ConvertYUVAToARGBRow_MMX(y_ptr,
  64                              u_ptr,
  65                              v_ptr,
  66                              a_ptr,
  67                              rgb_row,
  68                              width);
  69   }
  70
  71   EmptyRegisterState();
  72 }
  73
  74 void ConvertYUVToRGB32_SSE(const uint8* yplane,
  75                            const uint8* uplane,
  76                            const uint8* vplane,
  77                            uint8* rgbframe,
  78                            int width,
  79                            int height,
  80                            int ystride,
  81                            int uvstride,
  82                            int rgbstride,
  83                            YUVType yuv_type) {
  84   unsigned int y_shift = yuv_type;
  85   for (int y = 0; y < height; ++y) {
  86     uint8* rgb_row = rgbframe + y * rgbstride;
  87     const uint8* y_ptr = yplane + y * ystride;
  88     const uint8* u_ptr = uplane + (y >> y_shift) * uvstride;
  89     const uint8* v_ptr = vplane + (y >> y_shift) * uvstride;
  90
  91     ConvertYUVToRGB32Row_SSE(y_ptr,
  92                              u_ptr,
  93                              v_ptr,
  94                              rgb_row,
  95                              width);
  96   }
  97
  98   EmptyRegisterState();
  99 }
 100
 101 }  // namespace media