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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef GPU_COMMAND_BUFFER_CLIENT_FAKE_GPU_MEMORY_BUFFER_H_
#define GPU_COMMAND_BUFFER_CLIENT_FAKE_GPU_MEMORY_BUFFER_H_
#include <memory>
#include "media/base/video_types.h"
#include "ui/gfx/gpu_memory_buffer.h"
namespace gpu {
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
// This method is used by tests to create a fake pixmap handle instead of
// creating a FakeGpuMemoryBuffer. Once all tests are converted to use it,
// FakeGpuMemoryBuffer will be removed and this file will be renamed
// appropriately. Note that this method is only exposed to linux and chromeos
// whereas the FakeGpuMemoryBuffer itself can be used in any platform as of now
// with a handle type of gfx::NATIVE_PIXMAP which is confusing. Removing
// and replacing FakeGpuMemoryBuffer with platform specific handle creation
// methods will address those concerns.
gfx::GpuMemoryBufferHandle CreatePixmapHandleForTesting(
const gfx::Size& size,
gfx::BufferFormat format,
uint64_t modifier = gfx::NativePixmapHandle::kNoModifier);
#endif // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
// A fake implementation of gfx::GpuMemoryBuffer for testing purposes.
class FakeGpuMemoryBuffer : public gfx::GpuMemoryBuffer {
public:
// Used to defer execution of `MapAsync()` result callback.
// FakeGpuMemoryBuffer will pass the callbacks to the configured instance
// of this class, which can execute them as the test requires.
class MapCallbackController {
public:
virtual void RegisterCallback(base::OnceCallback<void(bool)> result_cb) = 0;
};
FakeGpuMemoryBuffer() = delete;
FakeGpuMemoryBuffer(const gfx::Size& size, gfx::BufferFormat format);
FakeGpuMemoryBuffer(const gfx::Size& size,
gfx::BufferFormat format,
uint64_t modifier);
FakeGpuMemoryBuffer(const gfx::Size& size,
gfx::BufferFormat format,
bool premapped,
MapCallbackController* controller);
FakeGpuMemoryBuffer(const FakeGpuMemoryBuffer&) = delete;
FakeGpuMemoryBuffer& operator=(const FakeGpuMemoryBuffer&) = delete;
// gfx::GpuMemoryBuffer implementation.
~FakeGpuMemoryBuffer() override;
bool Map() override;
void MapAsync(base::OnceCallback<void(bool)> result_cb) override;
bool AsyncMappingIsNonBlocking() const override;
void* memory(size_t plane) override;
void Unmap() override;
gfx::Size GetSize() const override;
gfx::BufferFormat GetFormat() const override;
int stride(size_t plane) const override;
gfx::GpuMemoryBufferId GetId() const override;
gfx::GpuMemoryBufferType GetType() const override;
gfx::GpuMemoryBufferHandle CloneHandle() const override;
void OnMemoryDump(
base::trace_event::ProcessMemoryDump* pmd,
const base::trace_event::MemoryAllocatorDumpGuid& buffer_dump_guid,
uint64_t tracing_process_id,
int importance) const override;
private:
gfx::Size size_;
gfx::BufferFormat format_;
media::VideoPixelFormat video_pixel_format_ = media::PIXEL_FORMAT_UNKNOWN;
std::vector<uint8_t> data_;
gfx::GpuMemoryBufferHandle handle_;
bool premapped_ = true;
raw_ptr<MapCallbackController> map_callback_controller_ = nullptr;
};
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_CLIENT_FAKE_GPU_MEMORY_BUFFER_H_
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