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
  10 #include "base/macros.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "components/view_manager/public/interfaces/command_buffer.mojom.h"
  13 #include "gpu/command_buffer/client/gpu_control.h"
  14 #include "gpu/command_buffer/common/command_buffer.h"
  15 #include "gpu/command_buffer/common/command_buffer_shared.h"
  16 #include "mojo/public/cpp/bindings/error_handler.h"
  17
  18 namespace base {
  19 class RunLoop;
  20 }
  21
  22 namespace gles2 {
  23 class CommandBufferClientImpl;
  24
  25 class CommandBufferDelegate {
  26  public:
  27   virtual ~CommandBufferDelegate();
  28   virtual void ContextLost();
  29 };
  30
  31 class CommandBufferClientImpl : public mojo::CommandBufferLostContextObserver,
  32                                 public mojo::ErrorHandler,
  33                                 public gpu::CommandBuffer,
  34                                 public gpu::GpuControl {
  35  public:
  36   explicit CommandBufferClientImpl(
  37       CommandBufferDelegate* delegate,
  38       const MojoAsyncWaiter* async_waiter,
  39       mojo::ScopedMessagePipeHandle command_buffer_handle);
  40   ~CommandBufferClientImpl() override;
  41
  42   // CommandBuffer implementation:
  43   bool Initialize() override;
  44   State GetLastState() override;
  45   int32_t GetLastToken() override;
  46   void Flush(int32_t put_offset) override;
  47   void OrderingBarrier(int32_t put_offset) override;
  48   void WaitForTokenInRange(int32_t start, int32_t end) override;
  49   void WaitForGetOffsetInRange(int32_t start, int32_t end) override;
  50   void SetGetBuffer(int32_t shm_id) override;
  51   scoped_refptr<gpu::Buffer> CreateTransferBuffer(size_t size,
  52                                                   int32_t* id) override;
  53   void DestroyTransferBuffer(int32_t id) override;
  54
  55   // gpu::GpuControl implementation:
  56   gpu::Capabilities GetCapabilities() override;
  57   int32_t CreateImage(ClientBuffer buffer,
  58                       size_t width,
  59                       size_t height,
  60                       unsigned internalformat) override;
  61   void DestroyImage(int32_t id) override;
  62   int32_t CreateGpuMemoryBufferImage(size_t width,
  63                                      size_t height,
  64                                      unsigned internalformat,
  65                                      unsigned usage) override;
  66   uint32 InsertSyncPoint() override;
  67   uint32 InsertFutureSyncPoint() override;
  68   void RetireSyncPoint(uint32 sync_point) override;
  69   void SignalSyncPoint(uint32 sync_point,
  70                        const base::Closure& callback) override;
  71   void SignalQuery(uint32 query, const base::Closure& callback) override;
  72   void SetSurfaceVisible(bool visible) override;
  73   uint32 CreateStreamTexture(uint32 texture_id) override;
  74   void SetLock(base::Lock*) override;
  75   bool IsGpuChannelLost() override;
  76
  77  private:
  78   class SyncClientImpl;
  79   class SyncPointClientImpl;
  80
  81   // mojo::CommandBufferLostContextObserver implementation:
  82   void DidLoseContext(int32_t lost_reason) override;
  83
  84   // mojo::ErrorHandler implementation:
  85   void OnConnectionError() override;
  86
  87   void TryUpdateState();
  88   void MakeProgressAndUpdateState();
  89
  90   gpu::CommandBufferSharedState* shared_state() const { return shared_state_; }
  91
  92   CommandBufferDelegate* delegate_;
  93   mojo::Binding<mojo::CommandBufferLostContextObserver> observer_binding_;
  94   mojo::CommandBufferPtr command_buffer_;
  95   scoped_ptr<SyncClientImpl> sync_client_impl_;
  96   scoped_ptr<SyncPointClientImpl> sync_point_client_impl_;
  97
  98   gpu::Capabilities capabilities_;
  99   State last_state_;
 100   mojo::ScopedSharedBufferHandle shared_state_handle_;
 101   gpu::CommandBufferSharedState* shared_state_;
 102   int32_t last_put_offset_;
 103   int32_t next_transfer_buffer_id_;
 104
 105   // Image IDs are allocated in sequence.
 106   int next_image_id_;
 107
 108   const MojoAsyncWaiter* async_waiter_;
 109 };
 110
 111 }  // gles2
 112
 113 #endif  // MOJO_GLES2_COMMAND_BUFFER_CLIENT_IMPL_H_