Move content/common/gpu/client to gpu/ipc/client

content/common/gpu/client/command_buffer_proxy_impl.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CONTENT_COMMON_GPU_CLIENT_COMMAND_BUFFER_PROXY_IMPL_H_
-#define CONTENT_COMMON_GPU_CLIENT_COMMAND_BUFFER_PROXY_IMPL_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <map>
-#include <queue>
-#include <string>
-
-#include "base/callback.h"
-#include "base/compiler_specific.h"
-#include "base/containers/hash_tables.h"
-#include "base/containers/scoped_ptr_hash_map.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "base/observer_list.h"
-#include "gpu/command_buffer/client/gpu_control.h"
-#include "gpu/command_buffer/common/command_buffer.h"
-#include "gpu/command_buffer/common/command_buffer_id.h"
-#include "gpu/command_buffer/common/command_buffer_shared.h"
-#include "gpu/command_buffer/common/gpu_memory_allocation.h"
-#include "ipc/ipc_listener.h"
-#include "ui/events/latency_info.h"
-#include "ui/gfx/swap_result.h"
-
-struct GPUCommandBufferConsoleMessage;
-
-namespace base {
-class SharedMemory;
-}
-
-namespace gpu {
-struct Mailbox;
-struct SyncToken;
-}
-
-namespace content {
-class GpuChannelHost;
-
-// Client side proxy that forwards messages synchronously to a
-// CommandBufferStub.
-class CommandBufferProxyImpl
-    : public gpu::CommandBuffer,
-      public gpu::GpuControl,
-      public IPC::Listener,
-      public base::SupportsWeakPtr<CommandBufferProxyImpl> {
- public:
-  class DeletionObserver {
-   public:
-    // Called during the destruction of the CommandBufferProxyImpl.
-    virtual void OnWillDeleteImpl() = 0;
-
-   protected:
-    virtual ~DeletionObserver() {}
-  };
-
-  typedef base::Callback<void(
-      const std::string& msg, int id)> GpuConsoleMessageCallback;
-
-  CommandBufferProxyImpl(GpuChannelHost* channel,
-                         int32_t route_id,
-                         int32_t stream_id);
-  ~CommandBufferProxyImpl() override;
-
-  // IPC::Listener implementation:
-  bool OnMessageReceived(const IPC::Message& message) override;
-  void OnChannelError() override;
-
-  // CommandBuffer implementation:
-  bool Initialize() override;
-  State GetLastState() override;
-  int32_t GetLastToken() override;
-  void Flush(int32_t put_offset) override;
-  void OrderingBarrier(int32_t put_offset) override;
-  void WaitForTokenInRange(int32_t start, int32_t end) override;
-  void WaitForGetOffsetInRange(int32_t start, int32_t end) override;
-  void SetGetBuffer(int32_t shm_id) override;
-  scoped_refptr<gpu::Buffer> CreateTransferBuffer(size_t size,
-                                                  int32_t* id) override;
-  void DestroyTransferBuffer(int32_t id) override;
-
-  // gpu::GpuControl implementation:
-  gpu::Capabilities GetCapabilities() override;
-  int32_t CreateImage(ClientBuffer buffer,
-                      size_t width,
-                      size_t height,
-                      unsigned internal_format) override;
-  void DestroyImage(int32_t id) override;
-  int32_t CreateGpuMemoryBufferImage(size_t width,
-                                     size_t height,
-                                     unsigned internal_format,
-                                     unsigned usage) override;
-  void SignalQuery(uint32_t query, const base::Closure& callback) override;
-  void SetLock(base::Lock* lock) override;
-  bool IsGpuChannelLost() override;
-  void EnsureWorkVisible() override;
-  gpu::CommandBufferNamespace GetNamespaceID() const override;
-  gpu::CommandBufferId GetCommandBufferID() const override;
-  int32_t GetExtraCommandBufferData() const override;
-  uint64_t GenerateFenceSyncRelease() override;
-  bool IsFenceSyncRelease(uint64_t release) override;
-  bool IsFenceSyncFlushed(uint64_t release) override;
-  bool IsFenceSyncFlushReceived(uint64_t release) override;
-  void SignalSyncToken(const gpu::SyncToken& sync_token,
-                       const base::Closure& callback) override;
-  bool CanWaitUnverifiedSyncToken(const gpu::SyncToken* sync_token) override;
-
-  bool ProduceFrontBuffer(const gpu::Mailbox& mailbox);
-  void SetContextLostCallback(const base::Closure& callback);
-
-  void AddDeletionObserver(DeletionObserver* observer);
-  void RemoveDeletionObserver(DeletionObserver* observer);
-
-  bool EnsureBackbuffer();
-
-  void SetOnConsoleMessageCallback(
-      const GpuConsoleMessageCallback& callback);
-
-  void SetLatencyInfo(const std::vector<ui::LatencyInfo>& latency_info);
-  using SwapBuffersCompletionCallback =
-      base::Callback<void(const std::vector<ui::LatencyInfo>& latency_info,
-                          gfx::SwapResult result)>;
-  void SetSwapBuffersCompletionCallback(
-      const SwapBuffersCompletionCallback& callback);
-
-  using UpdateVSyncParametersCallback =
-      base::Callback<void(base::TimeTicks timebase, base::TimeDelta interval)>;
-  void SetUpdateVSyncParametersCallback(
-      const UpdateVSyncParametersCallback& callback);
-
-  // TODO(apatrick): this is a temporary optimization while skia is calling
-  // ContentGLContext::MakeCurrent prior to every GL call. It saves returning 6
-  // ints redundantly when only the error is needed for the
-  // CommandBufferProxyImpl implementation.
-  gpu::error::Error GetLastError() override;
-
-  int32_t route_id() const { return route_id_; }
-
-  int32_t stream_id() const { return stream_id_; }
-
-  GpuChannelHost* channel() const { return channel_; }
-
-  base::SharedMemoryHandle GetSharedStateHandle() const {
-    return shared_state_shm_->handle();
-  }
-  uint32_t CreateStreamTexture(uint32_t texture_id);
-
- private:
-  typedef std::map<int32_t, scoped_refptr<gpu::Buffer>> TransferBufferMap;
-  typedef base::hash_map<uint32_t, base::Closure> SignalTaskMap;
-
-  void CheckLock() {
-    if (lock_)
-      lock_->AssertAcquired();
-  }
-
-  // Send an IPC message over the GPU channel. This is private to fully
-  // encapsulate the channel; all callers of this function must explicitly
-  // verify that the context has not been lost.
-  bool Send(IPC::Message* msg);
-
-  // Message handlers:
-  void OnUpdateState(const gpu::CommandBuffer::State& state);
-  void OnDestroyed(gpu::error::ContextLostReason reason,
-                   gpu::error::Error error);
-  void OnConsoleMessage(const GPUCommandBufferConsoleMessage& message);
-  void OnSignalAck(uint32_t id);
-  void OnSwapBuffersCompleted(const std::vector<ui::LatencyInfo>& latency_info,
-                              gfx::SwapResult result);
-  void OnUpdateVSyncParameters(base::TimeTicks timebase,
-                               base::TimeDelta interval);
-
-  // Try to read an updated copy of the state from shared memory.
-  void TryUpdateState();
-
-  // Updates the highest verified release fence sync.
-  void UpdateVerifiedReleases(uint32_t verified_flush);
-
-  // Loses the context after we received an invalid message from the GPU
-  // process. Will call the lost context callback reentrantly if any.
-  void InvalidGpuMessage();
-
-  // Loses the context after we received an invalid reply from the GPU
-  // process. Will post a task to call the lost context callback if any.
-  void InvalidGpuReply();
-
-  void InvalidGpuReplyOnClientThread();
-
-  // The shared memory area used to update state.
-  gpu::CommandBufferSharedState* shared_state() const;
-
-  base::Lock* lock_;
-
-  // Unowned list of DeletionObservers.
-  base::ObserverList<DeletionObserver> deletion_observers_;
-
-  // The last cached state received from the service.
-  State last_state_;
-
-  // The shared memory area used to update state.
-  scoped_ptr<base::SharedMemory> shared_state_shm_;
-
-  // |*this| is owned by |*channel_| and so is always outlived by it, so using a
-  // raw pointer is ok.
-  GpuChannelHost* channel_;
-  const gpu::CommandBufferId command_buffer_id_;
-  const int32_t route_id_;
-  const int32_t stream_id_;
-  uint32_t flush_count_;
-  int32_t last_put_offset_;
-  int32_t last_barrier_put_offset_;
-
-  // Next generated fence sync.
-  uint64_t next_fence_sync_release_;
-
-  // Unverified flushed fence syncs with their corresponding flush id.
-  std::queue<std::pair<uint64_t, uint32_t>> flushed_release_flush_id_;
-
-  // Last flushed fence sync release, same as last item in queue if not empty.
-  uint64_t flushed_fence_sync_release_;
-
-  // Last verified fence sync.
-  uint64_t verified_fence_sync_release_;
-
-  base::Closure context_lost_callback_;
-
-  GpuConsoleMessageCallback console_message_callback_;
-
-  // Tasks to be invoked in SignalSyncPoint responses.
-  uint32_t next_signal_id_;
-  SignalTaskMap signal_tasks_;
-
-  gpu::Capabilities capabilities_;
-
-  std::vector<ui::LatencyInfo> latency_info_;
-
-  SwapBuffersCompletionCallback swap_buffers_completion_callback_;
-  UpdateVSyncParametersCallback update_vsync_parameters_completion_callback_;
-
-  base::WeakPtr<CommandBufferProxyImpl> weak_this_;
-  scoped_refptr<base::SequencedTaskRunner> callback_thread_;
-
-  DISALLOW_COPY_AND_ASSIGN(CommandBufferProxyImpl);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_COMMON_GPU_CLIENT_COMMAND_BUFFER_PROXY_IMPL_H_