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// Copyright 2014 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 COMPONENTS_MUS_GLES2_COMMAND_BUFFER_IMPL_H_
#define COMPONENTS_MUS_GLES2_COMMAND_BUFFER_IMPL_H_
#include <stdint.h>
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/single_thread_task_runner.h"
#include "components/mus/public/interfaces/command_buffer.mojom.h"
#include "gpu/command_buffer/common/command_buffer.h"
#include "mojo/public/cpp/bindings/binding.h"
namespace mus {
class CommandBufferDriver;
class CommandBufferImplObserver;
class GpuState;
// This class listens to the CommandBuffer message pipe on a low-latency thread
// so that we can insert sync points without blocking on the GL driver. It
// forwards most method calls to the CommandBufferDriver, which runs on the
// same thread as the native viewport.
class CommandBufferImpl : public mojom::CommandBuffer {
public:
CommandBufferImpl(mojo::InterfaceRequest<CommandBuffer> request,
scoped_refptr<GpuState> gpu_state);
void DidLoseContext(uint32_t reason);
void set_observer(CommandBufferImplObserver* observer) {
observer_ = observer;
}
private:
class CommandBufferDriverClientImpl;
~CommandBufferImpl() override;
// mojom::CommandBuffer:
void Initialize(
mojom::CommandBufferLostContextObserverPtr loss_observer,
mojo::ScopedSharedBufferHandle shared_state,
mojo::Array<int32_t> attribs,
const mojom::CommandBuffer::InitializeCallback& callback) override;
void SetGetBuffer(int32_t buffer) override;
void Flush(int32_t put_offset) override;
void MakeProgress(
int32_t last_get_offset,
const mojom::CommandBuffer::MakeProgressCallback& callback) override;
void RegisterTransferBuffer(int32_t id,
mojo::ScopedSharedBufferHandle transfer_buffer,
uint32_t size) override;
void DestroyTransferBuffer(int32_t id) override;
void CreateImage(int32_t id,
mojo::ScopedHandle memory_handle,
int32_t type,
mojo::SizePtr size,
int32_t format,
int32_t internal_format) override;
void DestroyImage(int32_t id) override;
// All helper functions are called in the GPU therad.
void InitializeOnGpuThread(
mojom::CommandBufferLostContextObserverPtr loss_observer,
mojo::ScopedSharedBufferHandle shared_state,
mojo::Array<int32_t> attribs,
const base::Callback<void(mojom::CommandBufferInfoPtr)>& callback);
bool SetGetBufferOnGpuThread(int32_t buffer);
bool FlushOnGpuThread(int32_t put_offset, uint32_t order_num);
bool MakeProgressOnGpuThread(
int32_t last_get_offset,
const base::Callback<void(const gpu::CommandBuffer::State&)>& callback);
bool RegisterTransferBufferOnGpuThread(
int32_t id,
mojo::ScopedSharedBufferHandle transfer_buffer,
uint32_t size);
bool DestroyTransferBufferOnGpuThread(int32_t id);
bool CreateImageOnGpuThread(int32_t id,
mojo::ScopedHandle memory_handle,
int32_t type,
mojo::SizePtr size,
int32_t format,
int32_t internal_format);
bool DestroyImageOnGpuThread(int32_t id);
void BindToRequest(mojo::InterfaceRequest<CommandBuffer> request);
void OnConnectionError();
bool DeleteOnGpuThread();
scoped_refptr<GpuState> gpu_state_;
scoped_ptr<CommandBufferDriver> driver_;
scoped_ptr<mojo::Binding<CommandBuffer>> binding_;
CommandBufferImplObserver* observer_;
mojom::CommandBufferLostContextObserverPtr loss_observer_;
DISALLOW_COPY_AND_ASSIGN(CommandBufferImpl);
};
} // namespace mus
#endif // COMPONENTS_MUS_GLES2_COMMAND_BUFFER_IMPL_H_
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