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