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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef MOJO_GLES2_COMMAND_BUFFER_CLIENT_IMPL_H_
      6 #define MOJO_GLES2_COMMAND_BUFFER_CLIENT_IMPL_H_
      7 
      8 #include <map>
      9 
     10 #include "base/macros.h"
     11 #include "base/memory/scoped_ptr.h"
     12 #include "gpu/command_buffer/client/gpu_control.h"
     13 #include "gpu/command_buffer/common/command_buffer.h"
     14 #include "gpu/command_buffer/common/command_buffer_shared.h"
     15 #include "mojo/public/cpp/bindings/error_handler.h"
     16 #include "mojo/services/gles2/command_buffer.mojom.h"
     17 
     18 namespace base {
     19 class RunLoop;
     20 }
     21 
     22 namespace mojo {
     23 template <typename S>
     24 class SyncDispatcher;
     25 
     26 namespace gles2 {
     27 class CommandBufferClientImpl;
     28 
     29 class CommandBufferDelegate {
     30  public:
     31   virtual ~CommandBufferDelegate();
     32   virtual void ContextLost();
     33   virtual void DrawAnimationFrame();
     34 };
     35 
     36 class CommandBufferClientImpl : public CommandBufferClient,
     37                                 public CommandBufferSyncClient,
     38                                 public ErrorHandler,
     39                                 public gpu::CommandBuffer,
     40                                 public gpu::GpuControl {
     41  public:
     42   explicit CommandBufferClientImpl(
     43       CommandBufferDelegate* delegate,
     44       const MojoAsyncWaiter* async_waiter,
     45       ScopedMessagePipeHandle command_buffer_handle);
     46   virtual ~CommandBufferClientImpl();
     47 
     48   // CommandBuffer implementation:
     49   virtual bool Initialize() OVERRIDE;
     50   virtual State GetLastState() OVERRIDE;
     51   virtual int32 GetLastToken() OVERRIDE;
     52   virtual void Flush(int32 put_offset) OVERRIDE;
     53   virtual void WaitForTokenInRange(int32 start, int32 end) OVERRIDE;
     54   virtual void WaitForGetOffsetInRange(int32 start, int32 end) OVERRIDE;
     55   virtual void SetGetBuffer(int32 shm_id) OVERRIDE;
     56   virtual scoped_refptr<gpu::Buffer> CreateTransferBuffer(size_t size,
     57                                                           int32* id) OVERRIDE;
     58   virtual void DestroyTransferBuffer(int32 id) OVERRIDE;
     59 
     60   // gpu::GpuControl implementation:
     61   virtual gpu::Capabilities GetCapabilities() OVERRIDE;
     62   virtual gfx::GpuMemoryBuffer* CreateGpuMemoryBuffer(size_t width,
     63                                                       size_t height,
     64                                                       unsigned internalformat,
     65                                                       unsigned usage,
     66                                                       int32* id) OVERRIDE;
     67   virtual void DestroyGpuMemoryBuffer(int32 id) OVERRIDE;
     68   virtual uint32 InsertSyncPoint() OVERRIDE;
     69   virtual void SignalSyncPoint(uint32 sync_point,
     70                                const base::Closure& callback) OVERRIDE;
     71   virtual void SignalQuery(uint32 query,
     72                            const base::Closure& callback) OVERRIDE;
     73   virtual void SetSurfaceVisible(bool visible) OVERRIDE;
     74   virtual void Echo(const base::Closure& callback) OVERRIDE;
     75   virtual uint32 CreateStreamTexture(uint32 texture_id) OVERRIDE;
     76 
     77   void RequestAnimationFrames();
     78   void CancelAnimationFrames();
     79 
     80  private:
     81   // CommandBufferClient implementation:
     82   virtual void DidInitialize(bool success) OVERRIDE;
     83   virtual void DidMakeProgress(CommandBufferStatePtr state) OVERRIDE;
     84   virtual void DidDestroy() OVERRIDE;
     85   virtual void LostContext(int32_t lost_reason) OVERRIDE;
     86 
     87   // ErrorHandler implementation:
     88   virtual void OnConnectionError() OVERRIDE;
     89 
     90   virtual void DrawAnimationFrame() OVERRIDE;
     91 
     92   void TryUpdateState();
     93   void MakeProgressAndUpdateState();
     94 
     95   gpu::CommandBufferSharedState* shared_state() const { return shared_state_; }
     96 
     97   CommandBufferDelegate* delegate_;
     98   CommandBufferPtr command_buffer_;
     99   scoped_ptr<SyncDispatcher<CommandBufferSyncClient> > sync_dispatcher_;
    100 
    101   State last_state_;
    102   mojo::ScopedSharedBufferHandle shared_state_handle_;
    103   gpu::CommandBufferSharedState* shared_state_;
    104   int32 last_put_offset_;
    105   int32 next_transfer_buffer_id_;
    106 
    107   bool initialize_result_;
    108   const MojoAsyncWaiter* async_waiter_;
    109 };
    110 
    111 }  // gles2
    112 }  // mojo
    113 
    114 #endif  // MOJO_GLES2_COMMAND_BUFFER_CLIENT_IMPL_H_
    115