Add media::VideoEncodeAccelerator with WebRTC integration

content/common/gpu/gpu_channel.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.
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
 #include "content/common/gpu/gpu_channel.h"
 
 #include <queue>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/rand_util.h"
 #include "base/strings/string_util.h"
 #include "base/timer/timer.h"
 #include "content/common/gpu/gpu_channel_manager.h"
 #include "content/common/gpu/gpu_messages.h"
+#include "content/common/gpu/media/gpu_video_encode_accelerator.h"
 #include "content/common/gpu/sync_point_manager.h"
 #include "content/public/common/content_switches.h"
 #include "crypto/hmac.h"
 #include "gpu/command_buffer/common/mailbox.h"
 #include "gpu/command_buffer/service/gpu_scheduler.h"
 #include "gpu/command_buffer/service/image_manager.h"
 #include "gpu/command_buffer/service/mailbox_manager.h"
 #include "ipc/ipc_channel.h"
 #include "ipc/ipc_channel_proxy.h"
 #include "ui/gl/gl_context.h"
@@ skipping 721 matching lines @@
 
 void GpuChannel::OnDestroy() {
   TRACE_EVENT0("gpu", "GpuChannel::OnDestroy");
   gpu_channel_manager_->RemoveChannel(client_id_);
 }
 
 bool GpuChannel::OnControlMessageReceived(const IPC::Message& msg) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(GpuChannel, msg)
     IPC_MESSAGE_HANDLER(GpuChannelMsg_CreateOffscreenCommandBuffer,
-                                    OnCreateOffscreenCommandBuffer)
+                        OnCreateOffscreenCommandBuffer)
     IPC_MESSAGE_HANDLER(GpuChannelMsg_DestroyCommandBuffer,
-                                    OnDestroyCommandBuffer)
+                        OnDestroyCommandBuffer)
+    IPC_MESSAGE_HANDLER(GpuChannelMsg_CreateVideoEncoder, OnCreateVideoEncoder)
+    IPC_MESSAGE_HANDLER(GpuChannelMsg_DestroyVideoEncoder,
+                        OnDestroyVideoEncoder)
 #if defined(OS_ANDROID)
     IPC_MESSAGE_HANDLER(GpuChannelMsg_RegisterStreamTextureProxy,
                         OnRegisterStreamTextureProxy)
     IPC_MESSAGE_HANDLER(GpuChannelMsg_EstablishStreamTexture,
                         OnEstablishStreamTexture)
     IPC_MESSAGE_HANDLER(GpuChannelMsg_SetStreamTextureSize,
                         OnSetStreamTextureSize)
 #endif
     IPC_MESSAGE_HANDLER(
         GpuChannelMsg_CollectRenderingStatsForSurface,
@@ skipping 122 matching lines @@
   router_.RemoveRoute(route_id);
   stubs_.Remove(route_id);
   // In case the renderer is currently blocked waiting for a sync reply from the
   // stub, we need to make sure to reschedule the GpuChannel here.
   if (need_reschedule) {
     // This stub won't get a chance to reschedule, so update the count now.
     StubSchedulingChanged(true);
   }
 }
 
+void GpuChannel::OnCreateVideoEncoder(int32* route_id) {
+  TRACE_EVENT0("gpu", "GpuChannel::OnCreateVideoEncoder");
+
+  *route_id = GenerateRouteID();
+  GpuVideoEncodeAccelerator* encoder =
+      new GpuVideoEncodeAccelerator(this, *route_id);
+  router_.AddRoute(*route_id, encoder);
+  video_encoders_.AddWithID(encoder, *route_id);
+}
+
+void GpuChannel::OnDestroyVideoEncoder(int32 route_id) {
+  TRACE_EVENT1(
+      "gpu", "GpuChannel::OnDestroyVideoEncoder", "route_id", route_id);
+  GpuVideoEncodeAccelerator* encoder = video_encoders_.Lookup(route_id);
+  if (!encoder)
+    return;
+  router_.RemoveRoute(route_id);
+  video_encoders_.Remove(route_id);
+}
+
 #if defined(OS_ANDROID)
 void GpuChannel::OnRegisterStreamTextureProxy(
     int32 stream_id, int32* route_id) {
   // Note that route_id is only used for notifications sent out from here.
   // StreamTextureManager owns all texture objects and for incoming messages
   // it finds the correct object based on stream_id.
   *route_id = GenerateRouteID();
   stream_texture_manager_->RegisterStreamTextureProxy(stream_id, *route_id);
 }
 
@@ skipping 43 matching lines @@
   }
 }
 
 void GpuChannel::CacheShader(const std::string& key,
                              const std::string& shader) {
   gpu_channel_manager_->Send(
       new GpuHostMsg_CacheShader(client_id_, key, shader));
 }
 
 }  // namespace content