1// Copyright 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef UI_GFX_OZONE_DRI_DRI_SKBITMAP_H_
6#define UI_GFX_OZONE_DRI_DRI_SKBITMAP_H_
7
8#include "base/basictypes.h"
9#include "third_party/skia/include/core/SkBitmap.h"
10#include "ui/gfx/gfx_export.h"
11
12namespace gfx {
13
14// Extend the SkBitmap interface to keep track of additional parameters used by
15// the DRM stack when allocating buffers.
16class GFX_EXPORT DriSkBitmap : public SkBitmap {
17 public:
18  DriSkBitmap(int fd);
19  virtual ~DriSkBitmap();
20
21  // Allocates the backing pixels using DRI.
22  // Return true on success, false otherwise.
23  virtual bool Initialize();
24
25  uint32_t get_handle() const { return handle_; };
26
27  uint32_t get_framebuffer() const { return framebuffer_; };
28
29  int get_fd() const { return fd_; };
30
31  // Return the color depth of a pixel in this buffer.
32  uint8_t GetColorDepth() const;
33
34 private:
35  friend class DriAllocator;
36  friend class HardwareDisplayController;
37
38  void set_handle(uint32_t handle) { handle_ = handle; };
39  void set_framebuffer(uint32_t framebuffer) { framebuffer_ = framebuffer; };
40
41  // File descriptor used by the DRI allocator to request buffers from the DRI
42  // stack.
43  int fd_;
44
45  // Buffer handle used by the DRI allocator.
46  uint32_t handle_;
47
48  // Buffer ID used by the DRI modesettings API. This is set when the buffer is
49  // registered with the CRTC.
50  uint32_t framebuffer_;
51
52  DISALLOW_COPY_AND_ASSIGN(DriSkBitmap);
53};
54
55}  // namespace gfx
56
57#endif  // UI_GFX_OZONE_DRI_DRI_SKBITMAP_H_
58