blob: 3858c3f8db5aaac9ed6d3734694be050628f158e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
// 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.
#ifndef CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_H_
#define CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_H_
#include "base/memory/scoped_ptr.h"
#include "ui/gfx/gpu_memory_buffer.h"
#include "ui/gfx/size.h"
namespace content {
// Provides common implementation of a GPU memory buffer based
// on a shared memory handle.
class GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
public:
GpuMemoryBufferImpl(scoped_ptr<base::SharedMemory> shared_memory,
size_t width,
size_t height,
unsigned internalformat);
virtual ~GpuMemoryBufferImpl();
// Overridden from gfx::GpuMemoryBuffer:
virtual void Map(AccessMode mode, void** vaddr) OVERRIDE;
virtual void Unmap() OVERRIDE;
virtual bool IsMapped() const OVERRIDE;
virtual uint32 GetStride() const OVERRIDE;
virtual gfx::GpuMemoryBufferHandle GetHandle() const OVERRIDE;
static bool IsFormatValid(unsigned internalformat);
static size_t BytesPerPixel(unsigned internalformat);
private:
scoped_ptr<base::SharedMemory> shared_memory_;
const gfx::Size size_;
unsigned internalformat_;
bool mapped_;
DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferImpl);
};
} // namespace content
#endif // CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_H_
|
