Resubmit - Use SSE2 block differ for chromoting

remoting/remoting.gyp

 # Copyright (c) 2010 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,
   },
 
   'target_defaults': {
@@ skipping 165 matching lines @@
       ],
     },  # end of target 'chromoting_base'
 
     {
       'target_name': 'chromoting_host',
       'type': '<(library)',
       'dependencies': [
         'chromoting_base',
         'chromoting_jingle_glue',
         'chromoting_protocol',
+        'differ_block',
       ],
       'sources': [
         'host/access_verifier.cc',
         'host/access_verifier.h',
         'host/capturer.cc',
         'host/capturer.h',
         'host/capturer_fake.cc',
         'host/capturer_fake.h',
         'host/chromoting_host.cc',
         'host/chromoting_host.h',
         'host/chromoting_host_context.cc',
         'host/chromoting_host_context.h',
         'host/differ.h',
         'host/differ.cc',
-        'host/differ_block.h',
-        'host/differ_block.cc',
         'host/screen_recorder.cc',
         'host/screen_recorder.h',
         'host/heartbeat_sender.cc',
         'host/heartbeat_sender.h',
         'host/host_config.cc',
         'host/host_config.h',
         'host/host_key_pair.cc',
         'host/host_key_pair.h',
         'host/host_stub_fake.cc',
         'host/host_stub_fake.h',
@@ skipping 202 matching lines @@
         'protocol/util.h',
         'protocol/video_reader.cc',
         'protocol/video_reader.h',
         'protocol/video_stub.h',
         'protocol/video_writer.cc',
         'protocol/video_writer.h',
       ],
     },  # end of target 'chromoting_protocol'
 
     {
+      'target_name': 'differ_block',
+      'type': '<(library)',
+      'include_dirs': [
+        '..',
+      ],
+      'dependencies': [
+        '../media/media.gyp:cpu_features',
+      ],
+      'conditions': [
+        [ 'target_arch == "ia32" or target_arch == "x64"', {
+          'dependencies': [
+            'differ_block_sse2',
+          ],
+        }],
+      ],
+      'sources': [
+        'host/differ_block.cc',
+        'host/differ_block.h',
+      ],
+    }, # end of target differ_block
+
+    {
+      'target_name': 'differ_block_sse2',
+      'type': '<(library)',
+      'include_dirs': [
+        '..',
+      ],
+      'conditions': [
+        [ 'OS == "linux" or OS == "freebsd" or OS == "openbsd"', {
+          'cflags': [
+            '-msse2',
+          ],
+        }],
+      ],
+      'sources': [
+        'host/differ_block_sse2.cc',
+      ],
+    }, # end of target differ_block_sse2
+
+    {
       'target_name': 'chromotocol_test_client',
       'type': 'executable',
       'dependencies': [
         'chromoting_base',
         'chromoting_protocol',
       ],
       'sources': [
         'protocol/protocol_test_client.cc',
       ],
     },  # end of target 'chromotocol_test_client'
@@ skipping 104 matching lines @@
       ],  # end of 'conditions'
     },  # end of target 'chromoting_unittests'
   ],  # end of targets
 }
 
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