media/base/simd/convert_rgb_to_yuv_ssse3.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 #include "media/base/simd/convert_rgb_to_yuv.h"
   6
   7 #include "build/build_config.h"
   8 #include "media/base/simd/convert_rgb_to_yuv_ssse3.h"
   9
  10 namespace media {
  11
  12 void ConvertRGB32ToYUV_SSSE3(const uint8* rgbframe,
  13                              uint8* yplane,
  14                              uint8* uplane,
  15                              uint8* vplane,
  16                              int width,
  17                              int height,
  18                              int rgbstride,
  19                              int ystride,
  20                              int uvstride) {
  21   for (; height >= 2; height -= 2) {
  22     ConvertARGBToYUVRow_SSSE3(rgbframe, yplane, uplane, vplane, width);
  23     rgbframe += rgbstride;
  24     yplane += ystride;
  25
  26     ConvertARGBToYUVRow_SSSE3(rgbframe, yplane, NULL, NULL, width);
  27     rgbframe += rgbstride;
  28     yplane += ystride;
  29
  30     uplane += uvstride;
  31     vplane += uvstride;
  32   }
  33
  34   if (height)
  35     ConvertARGBToYUVRow_SSSE3(rgbframe, yplane, uplane, vplane, width);
  36 }
  37
  38 void ConvertRGB24ToYUV_SSSE3(const uint8* rgbframe,
  39                              uint8* yplane,
  40                              uint8* uplane,
  41                              uint8* vplane,
  42                              int width,
  43                              int height,
  44                              int rgbstride,
  45                              int ystride,
  46                              int uvstride) {
  47   for (; height >= 2; height -= 2) {
  48     ConvertRGBToYUVRow_SSSE3(rgbframe, yplane, uplane, vplane, width);
  49     rgbframe += rgbstride;
  50     yplane += ystride;
  51
  52     ConvertRGBToYUVRow_SSSE3(rgbframe, yplane, NULL, NULL, width);
  53     rgbframe += rgbstride;
  54     yplane += ystride;
  55
  56     uplane += uvstride;
  57     vplane += uvstride;
  58   }
  59
  60   if (height)
  61     ConvertRGBToYUVRow_SSSE3(rgbframe, yplane, uplane, vplane, width);
  62 }
  63
  64 }  // namespace media