[MIPS] Add support in media.gyp for building on MIPS architecture.

media/base/yuv_convert.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This webpage shows layout of YV12 and other YUV formats
 // http://www.fourcc.org/yuv.php
 // The actual conversion is best described here
 // http://en.wikipedia.org/wiki/YUV
 // An article on optimizing YUV conversion using tables instead of multiplies
 // http://lestourtereaux.free.fr/papers/data/yuvrgb.pdf
@@ skipping 425 matching lines @@
                        uint8* uplane,
                        uint8* vplane,
                        int width,
                        int height,
                        int rgbstride,
                        int ystride,
                        int uvstride) {
   static void (*convert_proc)(const uint8*, uint8*, uint8*, uint8*,
                               int, int, int, int, int) = NULL;
   if (!convert_proc) {
 #if defined(ARCH_CPU_ARM_FAMILY)

[scherkus (not reviewing), 2012/09/19 16:57:54]

instead of #elif can you use "|| defined(ARCH_CPU_MIPS_FAMILY)" + update the
comment?

[petarj, 2012/09/20 00:18:25]

Done.

     // For ARM processors, always use C version.
     // TODO(hclam): Implement a NEON version.
     convert_proc = &ConvertRGB32ToYUV_C;
+#elif defined(ARCH_CPU_MIPS_FAMILY)
+    // For MIPS processors, always use C version.
+    convert_proc = &ConvertRGB32ToYUV_C;
 #else
     // TODO(hclam): Switch to SSSE3 version when the cyan problem is solved.
     // See: crbug.com/100462
     base::CPU cpu;
     if (cpu.has_sse2())
       convert_proc = &ConvertRGB32ToYUV_SSE2;
     else
       convert_proc = &ConvertRGB32ToYUV_C;
 #endif
   }
 
   convert_proc(rgbframe, yplane, uplane, vplane, width, height,
                rgbstride, ystride, uvstride);
 }
 
 void ConvertRGB24ToYUV(const uint8* rgbframe,
                        uint8* yplane,
                        uint8* uplane,
                        uint8* vplane,
                        int width,
                        int height,
                        int rgbstride,
                        int ystride,
                        int uvstride) {
 #if defined(ARCH_CPU_ARM_FAMILY)
   ConvertRGB24ToYUV_C(rgbframe, yplane, uplane, vplane, width, height,

[scherkus (not reviewing), 2012/09/19 16:57:54]

ditto

[petarj, 2012/09/20 00:18:25]

Done.

                       rgbstride, ystride, uvstride);
+#elif defined(ARCH_CPU_MIPS_FAMILY)
+  ConvertRGB24ToYUV_C(rgbframe, yplane, uplane, vplane, width, height,
+                      rgbstride, ystride, uvstride);
 #else
   static void (*convert_proc)(const uint8*, uint8*, uint8*, uint8*,
                               int, int, int, int, int) = NULL;
   if (!convert_proc) {
     base::CPU cpu;
     if (cpu.has_ssse3())
       convert_proc = &ConvertRGB24ToYUV_SSSE3;
     else
       convert_proc = &ConvertRGB24ToYUV_C;
   }
@@ skipping 49 matching lines @@
                        const uint8* uplane,
                        const uint8* vplane,
                        uint8* rgbframe,
                        int width,
                        int height,
                        int ystride,
                        int uvstride,
                        int rgbstride,
                        YUVType yuv_type) {
 #if defined(ARCH_CPU_ARM_FAMILY)
   ConvertYUVToRGB32_C(yplane, uplane, vplane, rgbframe,

[scherkus (not reviewing), 2012/09/19 16:57:54]

ditto

[petarj, 2012/09/20 00:18:25]

Done.

                       width, height, ystride, uvstride, rgbstride, yuv_type);
+#elif defined(ARCH_CPU_MIPS_FAMILY)
+  ConvertYUVToRGB32_C(yplane, uplane, vplane, rgbframe,
+                      width, height, ystride, uvstride, rgbstride, yuv_type);
 #else
   static ConvertYUVToRGB32Proc convert_proc = NULL;
   if (!convert_proc) {
     base::CPU cpu;
     if (cpu.has_sse())
       convert_proc = &ConvertYUVToRGB32_SSE;
     else if (cpu.has_mmx())
       convert_proc = &ConvertYUVToRGB32_MMX;
     else
       convert_proc = &ConvertYUVToRGB32_C;
   }
 
   convert_proc(yplane, uplane, vplane, rgbframe,
                width, height, ystride, uvstride, rgbstride, yuv_type);
 #endif
 }
 
 }  // namespace media