mojo/gles2/command_buffer_client_impl.h

   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 #include <queue>
  10
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/memory/shared_memory.h"
  13 #include "gpu/command_buffer/common/command_buffer.h"
  14 #include "gpu/command_buffer/common/command_buffer_shared.h"
  15 #include "gpu/command_buffer/common/gpu_control.h"
  16
  17 #include "mojo/public/bindings/error_handler.h"
  18 #include "mojo/public/bindings/remote_ptr.h"
  19 #include "mojom/command_buffer.h"
  20
  21 namespace base {
  22 class RunLoop;
  23 }
  24
  25 namespace mojo {
  26 template <typename S>
  27 class SyncDispatcher;
  28
  29 namespace gles2 {
  30 class CommandBufferClientImpl;
  31
  32 class CommandBufferDelegate {
  33  public:
  34   virtual ~CommandBufferDelegate();
  35   virtual void ContextLost();
  36   virtual void DrawAnimationFrame();
  37 };
  38
  39 class CommandBufferClientImpl : public CommandBufferClient,
  40                                 public CommandBufferSyncClient,
  41                                 public ErrorHandler,
  42                                 public gpu::CommandBuffer,
  43                                 public gpu::GpuControl {
  44  public:
  45   explicit CommandBufferClientImpl(
  46       CommandBufferDelegate* delegate,
  47       MojoAsyncWaiter* async_waiter,
  48       ScopedCommandBufferHandle command_buffer_handle);
  49   virtual ~CommandBufferClientImpl();
  50
  51   // CommandBuffer implementation:
  52   virtual bool Initialize() OVERRIDE;
  53   virtual State GetState() OVERRIDE;
  54   virtual State GetLastState() OVERRIDE;
  55   virtual int32 GetLastToken() OVERRIDE;
  56   virtual void Flush(int32 put_offset) OVERRIDE;
  57   virtual State FlushSync(int32 put_offset, int32 last_known_get) OVERRIDE;
  58   virtual void SetGetBuffer(int32 shm_id) OVERRIDE;
  59   virtual void SetGetOffset(int32 get_offset) OVERRIDE;
  60   virtual gpu::Buffer CreateTransferBuffer(size_t size, int32* id) OVERRIDE;
  61   virtual void DestroyTransferBuffer(int32 id) OVERRIDE;
  62   virtual gpu::Buffer GetTransferBuffer(int32 id) OVERRIDE;
  63   virtual void SetToken(int32 token) OVERRIDE;
  64   virtual void SetParseError(gpu::error::Error error) OVERRIDE;
  65   virtual void SetContextLostReason(gpu::error::ContextLostReason reason)
  66       OVERRIDE;
  67
  68   // gpu::GpuControl implementation:
  69   virtual gpu::Capabilities GetCapabilities() OVERRIDE;
  70   virtual gfx::GpuMemoryBuffer* CreateGpuMemoryBuffer(size_t width,
  71                                                       size_t height,
  72                                                       unsigned internalformat,
  73                                                       int32* id) OVERRIDE;
  74   virtual void DestroyGpuMemoryBuffer(int32 id) OVERRIDE;
  75   virtual uint32 InsertSyncPoint() OVERRIDE;
  76   virtual void SignalSyncPoint(uint32 sync_point,
  77                                const base::Closure& callback) OVERRIDE;
  78   virtual void SignalQuery(uint32 query,
  79                            const base::Closure& callback) OVERRIDE;
  80   virtual void SetSurfaceVisible(bool visible) OVERRIDE;
  81   virtual void SendManagedMemoryStats(const gpu::ManagedMemoryStats& stats)
  82       OVERRIDE;
  83   virtual void Echo(const base::Closure& callback) OVERRIDE;
  84   virtual uint32 CreateStreamTexture(uint32 texture_id) OVERRIDE;
  85
  86   void RequestAnimationFrames();
  87   void CancelAnimationFrames();
  88
  89  private:
  90   typedef std::map<int32, gpu::Buffer> TransferBufferMap;
  91
  92   // CommandBufferClient implementation:
  93   virtual void DidInitialize(bool success) MOJO_OVERRIDE;
  94   virtual void DidMakeProgress(const CommandBufferState& state) MOJO_OVERRIDE;
  95   virtual void DidDestroy() MOJO_OVERRIDE;
  96   virtual void EchoAck() MOJO_OVERRIDE;
  97   virtual void LostContext(int32_t lost_reason) MOJO_OVERRIDE;
  98
  99   // ErrorHandler implementation:
 100   virtual void OnError() MOJO_OVERRIDE;
 101
 102   virtual void DrawAnimationFrame() MOJO_OVERRIDE;
 103
 104   void TryUpdateState();
 105   void MakeProgressAndUpdateState();
 106
 107   gpu::CommandBufferSharedState* shared_state() const {
 108     return reinterpret_cast<gpu::CommandBufferSharedState*>(
 109         shared_state_shm_->memory());
 110   }
 111
 112   CommandBufferDelegate* delegate_;
 113   RemotePtr<mojo::CommandBuffer> command_buffer_;
 114   scoped_ptr<SyncDispatcher<CommandBufferSyncClient> > sync_dispatcher_;
 115
 116   State last_state_;
 117   scoped_ptr<base::SharedMemory> shared_state_shm_;
 118   TransferBufferMap transfer_buffers_;
 119   int32 last_put_offset_;
 120   int32 next_transfer_buffer_id_;
 121   std::queue<base::Closure> echo_closures_;
 122
 123   bool initialize_result_;
 124 };
 125
 126 }  // gles2
 127 }  // mojo
 128
 129 #endif  // MOJO_GLES2_COMMAND_BUFFER_CLIENT_IMPL_H_