Set the texture to cleared in VideoDecodeAccelerator::PictureReady.

content/common/gpu/media/gpu_video_decode_accelerator.h

 // 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.
 
 #ifndef CONTENT_COMMON_GPU_MEDIA_GPU_VIDEO_DECODE_ACCELERATOR_H_
 #define CONTENT_COMMON_GPU_MEDIA_GPU_VIDEO_DECODE_ACCELERATOR_H_
 
+#include <map>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/shared_memory.h"
 #include "content/common/gpu/gpu_command_buffer_stub.h"
 #include "content/common/gpu/media/video_decode_accelerator_impl.h"
+#include "gpu/command_buffer/service/texture_manager.h"
 #include "ipc/ipc_listener.h"
 #include "ipc/ipc_sender.h"
 #include "media/video/video_decode_accelerator.h"
 #include "ui/gfx/size.h"
 
 namespace base {
 class MessageLoopProxy;
 }
 
 namespace content {
@@ skipping 49 matching lines @@
   void OnAssignPictureBuffers(const std::vector<int32>& buffer_ids,
                               const std::vector<uint32>& texture_ids);
   void OnReusePictureBuffer(int32 picture_buffer_id);
   void OnFlush();
   void OnReset();
   void OnDestroy();
 
   // Called on IO thread when |filter_| has been removed.
   void OnFilterRemoved();
 
+  // Sets the texture to cleared.
+  void SetTextureCleared(const media::Picture& picture);
+
   // Message to Send() when initialization is done.  Is only non-NULL during
   // initialization and is owned by the IPC channel underlying the
   // GpuCommandBufferStub.
   IPC::Message* init_done_msg_;
 
   // Route ID to communicate with the host.
   int32 host_route_id_;
 
   // Unowned pointer to the underlying GpuCommandBufferStub.
   GpuCommandBufferStub* stub_;
@@ skipping 16 matching lines @@
 
   // GPU child message loop.
   scoped_refptr<base::MessageLoopProxy> child_message_loop_;
 
   // GPU IO message loop.
   scoped_refptr<base::MessageLoopProxy> io_message_loop_;
 
   // Weak pointers will be invalidated on IO thread.
   base::WeakPtrFactory<Client> weak_factory_for_io_;
 
+  // Protects |uncleared_textures_| when DCHECK is on. This is for debugging
+  // only. We don't want to hold a lock on IO thread. When DCHECK is off,
+  // |uncleared_textures_| is only accessed from the child thread.
+  base::Lock debug_uncleared_textures_lock_;
+
+  // A map from picture buffer ID to TextureRef that have not been cleared.
+  std::map<int32, scoped_refptr<gpu::gles2::TextureRef> > uncleared_textures_;
+
   DISALLOW_IMPLICIT_CONSTRUCTORS(GpuVideoDecodeAccelerator);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_GPU_VIDEO_DECODE_ACCELERATOR_H_