blob: 8439d0f401dccf649add9213287d76bdf4283236 [file] [log] [blame]
// Copyright 2013 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.
#include <memory>
#include "base/callback.h"
#include "base/macros.h"
#include "gpu/command_buffer/common/sync_token.h"
#include "gpu/gpu_export.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/gpu_memory_buffer.h"
namespace gpu {
// Provides common implementation of a GPU memory buffer.
class GPU_EXPORT GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
typedef base::Callback<void(const gpu::SyncToken& sync)> DestructionCallback;
~GpuMemoryBufferImpl() override;
// Creates an instance from the given |handle|. |size| and |internalformat|
// should match what was used to allocate the |handle|. |callback| is
// called when instance is deleted, which is not necessarily on the same
// thread as this function was called on and instance was created on.
static std::unique_ptr<GpuMemoryBufferImpl> CreateFromHandle(
const gfx::GpuMemoryBufferHandle& handle,
const gfx::Size& size,
gfx::BufferFormat format,
gfx::BufferUsage usage,
const DestructionCallback& callback);
// Type-checking upcast routine. Returns an NULL on failure.
static GpuMemoryBufferImpl* FromClientBuffer(ClientBuffer buffer);
// Overridden from gfx::GpuMemoryBuffer:
gfx::Size GetSize() const override;
gfx::BufferFormat GetFormat() const override;
gfx::GpuMemoryBufferId GetId() const override;
ClientBuffer AsClientBuffer() override;
void set_destruction_sync_token(const gpu::SyncToken& sync_token) {
destruction_sync_token_ = sync_token;
GpuMemoryBufferImpl(gfx::GpuMemoryBufferId id,
const gfx::Size& size,
gfx::BufferFormat format,
const DestructionCallback& callback);
const gfx::GpuMemoryBufferId id_;
const gfx::Size size_;
const gfx::BufferFormat format_;
const DestructionCallback callback_;
bool mapped_;
gpu::SyncToken destruction_sync_token_;
} // namespace gpu