Implements RGB to YV12 conversion in YASM.

media/media.gyp

 # Copyright (c) 2011 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.
 
 {
   'variables': {
     'chromium_code': 1,
     # Override to dynamically link the PulseAudio library.
     'use_pulseaudio%': 0,
+    'use_system_yasm%': 0,
   },
   'targets': [
     {
       'target_name': 'media',
       'type': '<(component)',
       'dependencies': [
         'yuv_convert',
         '../base/base.gyp:base',
         '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
         '../build/temp_gyp/googleurl.gyp:googleurl',
@@ skipping 353 matching lines @@
             'Debug': {
               'xcode_settings': {
                 # gcc on the mac builds horribly unoptimized sse code in debug
                 # mode. Since this is rarely going to be debugged, run with full
                 # optimizations in Debug as well as Release.
                 'GCC_OPTIMIZATION_LEVEL': '3',  # -O3
                },
              },
           },
         }],
+        [ 'target_arch=="ia32" or target_arch=="x64"', {
+          'sources': [
+            'base/simd/convert_rgb_to_yuv_ssse3.asm',
+          ],
+        }],
+        [ 'OS=="win"', {

[Alpha Left Google, 2011/09/06 17:08:32]

I defined an include gypi file that helps to compile with yasm easier, please
switch to use that: http://codereview.chromium.org/7800039/

+          'variables': {
+            'object_suffix': 'obj',
+            'yasm_path': '../third_party/yasm/binaries/win/yasm<(EXECUTABLE_SUFFIX)',
+            'yasm_format': '-fwin32',
+            'yasm_flags': [
+              '-DWIN32',
+              '-DMSVC',
+            ],
+          },
+        }],
+        [ 'OS=="mac"', {
+          'dependencies': [
+            '../third_party/yasm/yasm.gyp:yasm#host',
+          ],
+          'variables': {
+            'object_suffix': 'o',
+            'yasm_path': '<(PRODUCT_DIR)/yasm',
+            'yasm_format': '-fmacho',
+            'yasm_flags': [
+              '-DMACHO',
+            ],
+          },
+        }],
+        [ 'OS=="linux"', {
+          'conditions': [
+            [ 'use_system_yasm==0', {
+              'dependencies': [
+                '../third_party/yasm/yasm.gyp:yasm#host',
+              ],
+            }],
+          ],
+          'variables': {
+            'object_suffix': 'o',
+            'conditions': [
+              [ 'use_system_yasm==1', {
+                'yasm_path': '<!(which yasm)',
+              }, {
+                'yasm_path': '<(PRODUCT_DIR)/yasm',
+              }],
+              [ 'target_arch=="ia32"', {
+                'yasm_format': '-felf',
+                'yasm_flags': [
+                  '-DX86_32',
+                  '-DELF',
+                ],
+              }, {
+                'yasm_format': '-felf64',
+                'yasm_flags': [
+                  '-DARCH_X86_64',
+                  '-DELF',
+                  '-DPIC',
+                ],
+              }],
+            ],
+          },
+        }],
       ],
       'sources': [
         'base/yuv_convert_sse2.cc',
+        'base/simd/convert_rgb_to_yuv.cc',
+      ],
+      'rules': [
+        {
+          'rule_name': 'assemble',
+          'extension': 'asm',
+          'inputs': [ '<(yasm_path)', ],
+          'outputs': [
+            '<(SHARED_INTERMEDIATE_DIR)/media/<(RULE_INPUT_ROOT).<(object_suffix)',
+          ],
+          'action': [
+            '<(yasm_path)',
+            '<(yasm_format)',
+            '<@(yasm_flags)',
+            '-DCHROMIUM',
+            '-Isimd/',
+            '-o', '<(SHARED_INTERMEDIATE_DIR)/media/<(RULE_INPUT_ROOT).<(object_suffix)',
+            '<(RULE_INPUT_PATH)',
+          ],
+          'process_outputs_as_sources': 1,
+          'message': 'Building <(RULE_INPUT_ROOT).<(object_suffix)',
+        },
       ],
     },
     {
       'target_name': 'ffmpeg_unittests',
       'type': 'executable',
       'dependencies': [
         'media',
         'media_test_support',
         '../base/base.gyp:base',
         '../base/base.gyp:base_i18n',
@@ skipping 57 matching lines @@
         'base/filter_collection_unittest.cc',
         'base/h264_bitstream_converter_unittest.cc',
         'base/mock_reader.h',
         'base/mock_task.cc',
         'base/mock_task.h',
         'base/pipeline_impl_unittest.cc',
         'base/pts_heap_unittest.cc',
         'base/pts_stream_unittest.cc',
         'base/run_all_unittests.cc',
         'base/seekable_buffer_unittest.cc',
+        'base/simd/convert_rgb_to_yuv_unittest.cc',
         'base/state_matrix_unittest.cc',
         'base/test_data_util.cc',
         'base/test_data_util.h',
         'base/video_frame_unittest.cc',
         'base/video_util_unittest.cc',
         'base/yuv_convert_unittest.cc',
         'ffmpeg/ffmpeg_common_unittest.cc',
         'filters/adaptive_demuxer_unittest.cc',
         'filters/audio_renderer_algorithm_ola_unittest.cc',
         'filters/audio_renderer_base_unittest.cc',
@@ skipping 273 matching lines @@
             'tools/player_x11/gl_video_renderer.h',
             'tools/player_x11/player_x11.cc',
             'tools/player_x11/x11_video_renderer.cc',
             'tools/player_x11/x11_video_renderer.h',
           ],
         },
       ],
     }],
   ],
 }