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 <vector>
  10
  11 #include "base/macros.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "components/mus/public/interfaces/command_buffer.mojom.h"
  14 #include "gpu/command_buffer/client/gpu_control.h"
  15 #include "gpu/command_buffer/common/command_buffer.h"
  16 #include "gpu/command_buffer/common/command_buffer_shared.h"
  17 #include "third_party/mojo/src/mojo/public/cpp/bindings/binding.h"
  18
  19 namespace base {
  20 class RunLoop;
  21 }
  22
  23 namespace gles2 {
  24 class CommandBufferClientImpl;
  25
  26 class CommandBufferDelegate {
  27  public:
  28   virtual ~CommandBufferDelegate();
  29   virtual void ContextLost();
  30 };
  31
  32 class CommandBufferClientImpl : public mojo::CommandBufferLostContextObserver,
  33                                 public gpu::CommandBuffer,
  34                                 public gpu::GpuControl {
  35  public:
  36   explicit CommandBufferClientImpl(
  37       CommandBufferDelegate* delegate,
  38       const std::vector<int32_t>& attribs,
  39       const MojoAsyncWaiter* async_waiter,
  40       mojo::ScopedMessagePipeHandle command_buffer_handle);
  41   ~CommandBufferClientImpl() override;
  42
  43   // CommandBuffer implementation:
  44   bool Initialize() override;
  45   State GetLastState() override;
  46   int32_t GetLastToken() override;
  47   void Flush(int32_t put_offset) override;
  48   void OrderingBarrier(int32_t put_offset) override;
  49   void WaitForTokenInRange(int32_t start, int32_t end) override;
  50   void WaitForGetOffsetInRange(int32_t start, int32_t end) override;
  51   void SetGetBuffer(int32_t shm_id) override;
  52   scoped_refptr<gpu::Buffer> CreateTransferBuffer(size_t size,
  53                                                   int32_t* id) override;
  54   void DestroyTransferBuffer(int32_t id) override;
  55
  56   // gpu::GpuControl implementation:
  57   gpu::Capabilities GetCapabilities() override;
  58   int32_t CreateImage(ClientBuffer buffer,
  59                       size_t width,
  60                       size_t height,
  61                       unsigned internalformat) override;
  62   void DestroyImage(int32_t id) override;
  63   int32_t CreateGpuMemoryBufferImage(size_t width,
  64                                      size_t height,
  65                                      unsigned internalformat,
  66                                      unsigned usage) override;
  67   uint32 InsertSyncPoint() override;
  68   uint32 InsertFutureSyncPoint() override;
  69   void RetireSyncPoint(uint32 sync_point) override;
  70   void SignalSyncPoint(uint32 sync_point,
  71                        const base::Closure& callback) override;
  72   void SignalQuery(uint32 query, const base::Closure& callback) override;
  73   void SetSurfaceVisible(bool visible) override;
  74   uint32 CreateStreamTexture(uint32 texture_id) override;
  75   void SetLock(base::Lock*) override;
  76   bool IsGpuChannelLost() override;
  77   gpu::CommandBufferNamespace GetNamespaceID() const override;
  78   uint64_t GetCommandBufferID() const override;
  79
  80  private:
  81   class SyncClientImpl;
  82   class SyncPointClientImpl;
  83
  84   // mojo::CommandBufferLostContextObserver implementation:
  85   void DidLoseContext(int32_t lost_reason) override;
  86
  87   void TryUpdateState();
  88   void MakeProgressAndUpdateState();
  89
  90   gpu::CommandBufferSharedState* shared_state() const { return shared_state_; }
  91
  92   CommandBufferDelegate* delegate_;
  93   std::vector<int32_t> attribs_;
  94   mojo::Binding<mojo::CommandBufferLostContextObserver> observer_binding_;
  95   mojo::CommandBufferPtr command_buffer_;
  96   scoped_ptr<SyncClientImpl> sync_client_impl_;
  97   scoped_ptr<SyncPointClientImpl> sync_point_client_impl_;
  98
  99   gpu::Capabilities capabilities_;
 100   State last_state_;
 101   mojo::ScopedSharedBufferHandle shared_state_handle_;
 102   gpu::CommandBufferSharedState* shared_state_;
 103   int32_t last_put_offset_;
 104   int32_t next_transfer_buffer_id_;
 105
 106   // Image IDs are allocated in sequence.
 107   int next_image_id_;
 108
 109   const MojoAsyncWaiter* async_waiter_;
 110 };
 111
 112 }  // gles2
 113
 114 #endif  // MOJO_GLES2_COMMAND_BUFFER_CLIENT_IMPL_H_