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      1 // Copyright (c) 2012 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 PPAPI_PROXY_COMMAND_BUFFER_PROXY_H_
      6 #define PPAPI_PROXY_COMMAND_BUFFER_PROXY_H_
      7 
      8 #include "base/callback.h"
      9 #include "base/containers/hash_tables.h"
     10 #include "gpu/command_buffer/common/command_buffer.h"
     11 #include "gpu/command_buffer/common/gpu_control.h"
     12 #include "ppapi/proxy/ppapi_proxy_export.h"
     13 #include "ppapi/shared_impl/host_resource.h"
     14 
     15 namespace IPC {
     16 class Message;
     17 }
     18 
     19 namespace ppapi {
     20 namespace proxy {
     21 
     22 class ProxyChannel;
     23 
     24 class PPAPI_PROXY_EXPORT PpapiCommandBufferProxy : public gpu::CommandBuffer,
     25                                                    public gpu::GpuControl {
     26  public:
     27   PpapiCommandBufferProxy(const HostResource& resource,
     28                           ProxyChannel* channel);
     29   virtual ~PpapiCommandBufferProxy();
     30 
     31   // gpu::CommandBuffer implementation:
     32   virtual bool Initialize() OVERRIDE;
     33   virtual State GetState() OVERRIDE;
     34   virtual State GetLastState() OVERRIDE;
     35   virtual int32 GetLastToken() OVERRIDE;
     36   virtual void Flush(int32 put_offset) OVERRIDE;
     37   virtual State FlushSync(int32 put_offset, int32 last_known_get) OVERRIDE;
     38   virtual void SetGetBuffer(int32 transfer_buffer_id) OVERRIDE;
     39   virtual void SetGetOffset(int32 get_offset) OVERRIDE;
     40   virtual gpu::Buffer CreateTransferBuffer(size_t size, int32* id) OVERRIDE;
     41   virtual void DestroyTransferBuffer(int32 id) OVERRIDE;
     42   virtual gpu::Buffer GetTransferBuffer(int32 id) OVERRIDE;
     43   virtual void SetToken(int32 token) OVERRIDE;
     44   virtual void SetParseError(gpu::error::Error error) OVERRIDE;
     45   virtual void SetContextLostReason(gpu::error::ContextLostReason reason)
     46       OVERRIDE;
     47 
     48   // gpu::GpuControl implementation:
     49   virtual gpu::Capabilities GetCapabilities() OVERRIDE;
     50   virtual gfx::GpuMemoryBuffer* CreateGpuMemoryBuffer(
     51       size_t width,
     52       size_t height,
     53       unsigned internalformat,
     54       int32* id) OVERRIDE;
     55   virtual void DestroyGpuMemoryBuffer(int32 id) OVERRIDE;
     56   virtual bool GenerateMailboxNames(unsigned num,
     57                                     std::vector<gpu::Mailbox>* names) OVERRIDE;
     58   virtual uint32 InsertSyncPoint() OVERRIDE;
     59   virtual void SignalSyncPoint(uint32 sync_point,
     60                                const base::Closure& callback) OVERRIDE;
     61   virtual void SignalQuery(uint32 query,
     62                            const base::Closure& callback) OVERRIDE;
     63   virtual void SetSurfaceVisible(bool visible) OVERRIDE;
     64   virtual void SendManagedMemoryStats(const gpu::ManagedMemoryStats& stats)
     65       OVERRIDE;
     66   virtual void Echo(const base::Closure& callback) OVERRIDE;
     67 
     68  private:
     69   bool Send(IPC::Message* msg);
     70   void UpdateState(const gpu::CommandBuffer::State& state, bool success);
     71 
     72   typedef base::hash_map<int32, gpu::Buffer> TransferBufferMap;
     73   TransferBufferMap transfer_buffers_;
     74 
     75   State last_state_;
     76 
     77   HostResource resource_;
     78   ProxyChannel* channel_;
     79 
     80   base::Closure channel_error_callback_;
     81 
     82   DISALLOW_COPY_AND_ASSIGN(PpapiCommandBufferProxy);
     83 };
     84 
     85 }  // namespace proxy
     86 }  // namespace ppapi
     87 
     88 #endif // PPAPI_PROXY_COMMAND_BUFFER_PROXY_H_
     89