Make lost context and error message callbacks on GpuControl go to client

gpu/command_buffer/service/in_process_command_buffer.h

 // Copyright 2013 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 GPU_COMMAND_BUFFER_SERVICE_IN_PROCESS_COMMAND_BUFFER_H_
 #define GPU_COMMAND_BUFFER_SERVICE_IN_PROCESS_COMMAND_BUFFER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
 #include <vector>
 
 #include "base/atomic_sequence_num.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/containers/scoped_ptr_hash_map.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
+#include "base/single_thread_task_runner.h"
 #include "base/synchronization/lock.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
 #include "gpu/command_buffer/client/gpu_control.h"
 #include "gpu/command_buffer/common/command_buffer.h"
 #include "gpu/command_buffer/service/gpu_preferences.h"
 #include "gpu/gpu_export.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gl/gl_surface.h"
@@ skipping 53 matching lines @@
 
   // If |surface| is not null, use it directly; in this case, the command
   // buffer gpu thread must be the same as the client thread. Otherwise create
   // a new GLSurface.
   bool Initialize(scoped_refptr<gfx::GLSurface> surface,
                   bool is_offscreen,
                   gfx::AcceleratedWidget window,
                   const gfx::Size& size,
                   const std::vector<int32_t>& attribs,
                   gfx::GpuPreference gpu_preference,
-                  const base::Closure& context_lost_callback,
                   InProcessCommandBuffer* share_group,
                   GpuMemoryBufferManager* gpu_memory_buffer_manager,
                   ImageFactory* image_factory);
   void Destroy();
 
   // CommandBuffer implementation:
   bool Initialize() override;
   State GetLastState() override;
   int32_t GetLastToken() override;
   void Flush(int32_t put_offset) override;
   void OrderingBarrier(int32_t put_offset) override;
   void WaitForTokenInRange(int32_t start, int32_t end) override;
   void WaitForGetOffsetInRange(int32_t start, int32_t end) override;
   void SetGetBuffer(int32_t shm_id) override;
   scoped_refptr<gpu::Buffer> CreateTransferBuffer(size_t size,
                                                   int32_t* id) override;
   void DestroyTransferBuffer(int32_t id) override;
   gpu::error::Error GetLastError() override;
 
   // GpuControl implementation:
+  // NOTE: The GpuControlClient will be called on the GPU thread.
+  void SetGpuControlClient(GpuControlClient*) override;
   gpu::Capabilities GetCapabilities() override;
   int32_t CreateImage(ClientBuffer buffer,
                       size_t width,
                       size_t height,
                       unsigned internalformat) override;
   void DestroyImage(int32_t id) override;
   int32_t CreateGpuMemoryBufferImage(size_t width,
                                      size_t height,
                                      unsigned internalformat,
                                      unsigned usage) override;
@@ skipping 106 matching lines @@
   void CreateImageOnGpuThread(int32_t id,
                               const gfx::GpuMemoryBufferHandle& handle,
                               const gfx::Size& size,
                               gfx::BufferFormat format,
                               uint32_t internalformat,
                               uint32_t order_num,
                               uint64_t fence_sync);
   void DestroyImageOnGpuThread(int32_t id);
   void SetGetBufferOnGpuThread(int32_t shm_id, base::WaitableEvent* completion);
 
-  // Callbacks:
+  // Callbacks on the gpu thread.
+  void OnContextLostOnGpuThread();
+  void PumpCommandsOnGpuThread();
+  void PerformDelayedWorkOnGpuThread();
+  // Callback implementations on the client thread.
   void OnContextLost();
-  bool GetBufferChanged(int32_t transfer_buffer_id);
-  void PumpCommands();
-  void PerformDelayedWork();
 
   const CommandBufferId command_buffer_id_;
 
   // Members accessed on the gpu thread (possibly with the exception of
   // creation):
+  scoped_refptr<base::SingleThreadTaskRunner> origin_task_runner_;
+  GpuControlClient* gpu_control_client_;
   bool context_lost_;
   scoped_refptr<TransferBufferManagerInterface> transfer_buffer_manager_;
   scoped_ptr<CommandExecutor> executor_;
   scoped_ptr<gles2::GLES2Decoder> decoder_;
   scoped_refptr<gfx::GLContext> context_;
   scoped_refptr<gfx::GLSurface> surface_;
   scoped_refptr<SyncPointOrderData> sync_point_order_data_;
   scoped_ptr<SyncPointClient> sync_point_client_;
   base::Closure context_lost_callback_;
-  bool delayed_work_pending_;  // Used to throttle PerformDelayedWork.
+  // Used to throttle PerformDelayedWorkOnGpuThread.
+  bool delayed_work_pending_;
   ImageFactory* image_factory_;
 
   // Members accessed on the client thread:
   State last_state_;
   int32_t last_put_offset_;
   gpu::Capabilities capabilities_;
   GpuMemoryBufferManager* gpu_memory_buffer_manager_;
   base::AtomicSequenceNumber next_image_id_;
   uint64_t next_fence_sync_release_;
   uint64_t flushed_fence_sync_release_;
 
   // Accessed on both threads:
   scoped_ptr<CommandBufferServiceBase> command_buffer_;
   base::Lock command_buffer_lock_;
   base::WaitableEvent flush_event_;
   scoped_refptr<Service> service_;
   State state_after_last_flush_;
   base::Lock state_after_last_flush_lock_;
   scoped_refptr<gfx::GLShareGroup> gl_share_group_;
   base::WaitableEvent fence_sync_wait_event_;
 
 #if defined(OS_ANDROID)
   scoped_ptr<StreamTextureManagerInProcess> stream_texture_manager_;
 #endif
 
   // Only used with explicit scheduling and the gpu thread is the same as
   // the client thread.
   scoped_ptr<base::SequenceChecker> sequence_checker_;
 
+  base::WeakPtr<InProcessCommandBuffer> client_thread_weak_ptr_;
   base::WeakPtr<InProcessCommandBuffer> gpu_thread_weak_ptr_;
+  base::WeakPtrFactory<InProcessCommandBuffer> client_thread_weak_ptr_factory_;
   base::WeakPtrFactory<InProcessCommandBuffer> gpu_thread_weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(InProcessCommandBuffer);
 };
 
 // Default Service class when a null service is used.
 class GPU_EXPORT GpuInProcessThread
     : public base::Thread,
       public NON_EXPORTED_BASE(InProcessCommandBuffer::Service),
       public base::RefCountedThreadSafe<GpuInProcessThread> {
@@ skipping 18 matching lines @@
   SyncPointManager* sync_point_manager_;  // Non-owning.
   scoped_refptr<gpu::gles2::ShaderTranslatorCache> shader_translator_cache_;
   scoped_refptr<gpu::gles2::FramebufferCompletenessCache>
       framebuffer_completeness_cache_;
   DISALLOW_COPY_AND_ASSIGN(GpuInProcessThread);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_IN_PROCESS_COMMAND_BUFFER_H_