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// Copyright 2017 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 MEDIA_GPU_TEST_LOCAL_GPU_MEMORY_BUFFER_MANAGER_H_
#define MEDIA_GPU_TEST_LOCAL_GPU_MEMORY_BUFFER_MANAGER_H_
#include <memory>
#include "gpu/command_buffer/client/gpu_memory_buffer_manager.h"
#include "media/gpu/media_gpu_export.h"
#include "ui/gfx/buffer_types.h"
struct gbm_device;
namespace gfx {
class GpuMemoryBuffer;
struct NativePixmapHandle;
class Size;
} // namespace gfx
namespace media {
// A local, as opposed to the default IPC-based, implementation of
// gfx::GpuMemoryBufferManager which interacts with the DRM render node device
// directly. The LocalGpuMemoryBufferManager is only for testing purposes and
// should not be used in production.
class MEDIA_GPU_EXPORT LocalGpuMemoryBufferManager
: public gpu::GpuMemoryBufferManager {
public:
LocalGpuMemoryBufferManager();
// gpu::GpuMemoryBufferManager implementation
~LocalGpuMemoryBufferManager() override;
std::unique_ptr<gfx::GpuMemoryBuffer> CreateGpuMemoryBuffer(
const gfx::Size& size,
gfx::BufferFormat format,
gfx::BufferUsage usage,
gpu::SurfaceHandle surface_handle,
base::WaitableEvent* shutdown_event) override;
void SetDestructionSyncToken(gfx::GpuMemoryBuffer* buffer,
const gpu::SyncToken& sync_token) override;
void CopyGpuMemoryBufferAsync(
gfx::GpuMemoryBufferHandle buffer_handle,
base::UnsafeSharedMemoryRegion memory_region,
base::OnceCallback<void(bool)> callback) override;
bool CopyGpuMemoryBufferSync(
gfx::GpuMemoryBufferHandle buffer_handle,
base::UnsafeSharedMemoryRegion memory_region) override;
// Imports a DmaBuf as a GpuMemoryBuffer to be able to map it. The
// GBM_BO_USE_SW_READ_OFTEN usage is specified so that the user of the
// returned GpuMemoryBuffer is guaranteed to have a linear view when mapping
// it.
std::unique_ptr<gfx::GpuMemoryBuffer> ImportDmaBuf(
const gfx::NativePixmapHandle& handle,
const gfx::Size& size,
gfx::BufferFormat format);
// Returns true if the combination of |format| and |usage| is supported by
// CreateGpuMemoryBuffer().
bool IsFormatAndUsageSupported(gfx::BufferFormat format,
gfx::BufferUsage usage);
private:
gbm_device* gbm_device_;
DISALLOW_COPY_AND_ASSIGN(LocalGpuMemoryBufferManager);
};
} // namespace media
#endif // MEDIA_GPU_TEST_LOCAL_GPU_MEMORY_BUFFER_MANAGER_H_