Adding the implementation of the StreamTextureFactoryImpl for android

content/renderer/render_view_impl.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.
 
 #include "content/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 #include <string>
 #include <vector>
@@ skipping 2480 matching lines @@
   }
 }
 
 WebMediaPlayer* RenderViewImpl::createMediaPlayer(
     WebFrame* frame, const WebKit::WebURL& url, WebMediaPlayerClient* client) {
   FOR_EACH_OBSERVER(
       RenderViewObserver, observers_, WillCreateMediaPlayer(frame, client));
 
   const CommandLine* cmd_line = CommandLine::ForCurrentProcess();
 #if defined(OS_ANDROID)
-  // TODO(qinmin): upstream the implementation of getting WebGraphicsContext3D
-  // and GpuChannelHost here to replace the NULL params.
+  // Leak |resource_context| similar to SharedGraphicsContext3D to avoid
+  // shutdown races.
+  // TODO(sievers): Expose the shared context from webkit to be used here.

[jamesr, 2012/09/22 00:42:22]

the shared context is exposed from WebKit.  Specifically it's
WebView::sharedGraphicsContext3D().  could you use that instead of making a new
one? it's used for canvas 2d so i expect it to be commonly already created on
android

[qinmin, 2012/09/22 01:45:28]

Done.

+  static WebGraphicsContext3DCommandBufferImpl* resource_context = NULL;
+  if (!resource_context) {
+    // Create a main-thread context for resource allocation.
+    int surface = 0;
+    GURL url;
+    base::WeakPtr<WebGraphicsContext3DSwapBuffersClient> swap_client;
+
+    resource_context = new WebGraphicsContext3DCommandBufferImpl(
+        surface, url, RenderThreadImpl::current(), swap_client);
+    WebKit::WebGraphicsContext3D::Attributes attributes;
+    attributes.antialias = false;
+    attributes.shareResources = true;
+    attributes.depth = false;
+    attributes.stencil = false;
+    if (!resource_context->Initialize(
+        attributes,
+        false,
+        content::CAUSE_FOR_GPU_LAUNCH_VIDEODECODEACCELERATOR_INITIALIZE)) {
+      delete resource_context;
+      resource_context = NULL;
+      LOG(ERROR) << "Failed to create graphics context for video resources";
+      return NULL;
+    }
+  }
+
+  GpuChannelHost* gpu_channel_host =
+      RenderThreadImpl::current()->EstablishGpuChannelSync(
+          content::CAUSE_FOR_GPU_LAUNCH_VIDEODECODEACCELERATOR_INITIALIZE);
+  if (!gpu_channel_host) {
+    LOG(ERROR) << "Failed to establish GPU channel for media player";
+    return NULL;
+  }
+
   if (cmd_line->HasSwitch(switches::kMediaPlayerInRenderProcess)) {
     if (!media_bridge_manager_.get()) {
       media_bridge_manager_.reset(
           new webkit_media::MediaPlayerBridgeManagerImpl(1));
     }
     return new webkit_media::WebMediaPlayerInProcessAndroid(
         frame,
         client,
         cookieJar(frame),
         media_player_manager_.get(),
         media_bridge_manager_.get(),
         new content::StreamTextureFactoryImpl(
-            NULL, NULL, routing_id_),
+            resource_context, gpu_channel_host, routing_id_),
         cmd_line->HasSwitch(switches::kDisableMediaHistoryLogging));
   }
   if (!media_player_proxy_) {
     media_player_proxy_ = new content::WebMediaPlayerProxyImplAndroid(
         this, media_player_manager_.get());
   }
   return new webkit_media::WebMediaPlayerImplAndroid(
       frame,
       client,
       media_player_manager_.get(),
       media_player_proxy_,
       new content::StreamTextureFactoryImpl(
-          NULL, NULL, routing_id_));
+          resource_context, gpu_channel_host, routing_id_));
 #endif
 
   media::MessageLoopFactory* message_loop_factory =
       new media::MessageLoopFactory();
   media::FilterCollection* collection = new media::FilterCollection();
   RenderMediaLog* render_media_log = new RenderMediaLog();
 
   RenderAudioSourceProvider* audio_source_provider = NULL;
 
   // Add in any custom filter factories first.
@@ skipping 3700 matching lines @@
 
   updating_frame_tree_ = true;
   active_frame_id_map_.clear();
 
   target_process_id_ = process_id;
   target_routing_id_ = route_id;
   CreateFrameTree(webview()->mainFrame(), frames);
 
   updating_frame_tree_ = false;
 }