Reland: Add ETC1 powered SSE encoder for tile texture compression

cc/cc.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 469 matching lines @@
         'resources/single_release_callback_impl.cc',
         'resources/single_release_callback_impl.h',
         'resources/skpicture_content_layer_updater.cc',
         'resources/skpicture_content_layer_updater.h',
         'resources/task_graph_runner.cc',
         'resources/task_graph_runner.h',
         'resources/texture_compressor.cc',
         'resources/texture_compressor.h',
         'resources/texture_compressor_etc1.cc',
         'resources/texture_compressor_etc1.h',
+        'resources/texture_compressor_etc1_sse.cc',
+        'resources/texture_compressor_etc1_sse.h',

[robert.bradford, 2015/04/17 14:04:47]

You also need to add entries to the BUILD.gn file too.

[radu.velea, 2015/04/17 16:02:32]

Done.

[radu.velea, 2015/04/17 16:02:32]

Done.

         'resources/texture_mailbox.cc',
         'resources/texture_mailbox.h',
         'resources/texture_mailbox_deleter.cc',
         'resources/texture_mailbox_deleter.h',
         'resources/texture_uploader.cc',
         'resources/texture_uploader.h',
         'resources/tile.cc',
         'resources/tile.h',
         'resources/tile_draw_info.cc',
         'resources/tile_draw_info.h',
@@ skipping 72 matching lines @@
         'trees/scoped_abort_remaining_swap_promises.h',
         'trees/single_thread_proxy.cc',
         'trees/single_thread_proxy.h',
         'trees/swap_promise_monitor.cc',
         'trees/swap_promise_monitor.h',
         'trees/thread_proxy.cc',
         'trees/thread_proxy.h',
         'trees/tree_synchronizer.cc',
         'trees/tree_synchronizer.h',
       ],
+      'cflags': [
+        '-msse4.1',

[robert.bradford, 2015/04/17 14:04:47]

You can't do this as this allows the compiler to use optimisations that generate
SSE4.1 instructions for this whole compilation block which might not be
supported by the platform the code runs on.

[radu.velea, 2015/04/17 16:02:32]

Done.

+      ],
       'includes': [
         '../build/android/increase_size_for_speed.gypi',
       ],
       # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
       'msvs_disabled_warnings': [ 4267, ],
     },
     {
       # GN version: //cc/surfaces
       'target_name': 'cc_surfaces',
       'type': '<(component)',
@@ skipping 33 matching lines @@
         'surfaces/surface_resource_holder.cc',
         'surfaces/surface_resource_holder.h',
         'surfaces/surfaces_export.h',
       ],
       'includes': [
         '../build/android/increase_size_for_speed.gypi',
       ],
     },
   ],
 }