texture_definition.h revision 5821806d5e7f356e8fa4b058a389a808ea183019 
1// Copyright (c) 2012 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 GPU_COMMAND_BUFFER_SERVICE_TEXTURE_DEFINITION_H_
6#define GPU_COMMAND_BUFFER_SERVICE_TEXTURE_DEFINITION_H_
7
8#include <vector>
9
10#include "base/callback.h"
11#include "gpu/command_buffer/service/gl_utils.h"
12#include "gpu/gpu_export.h"
13
14namespace gpu {
15namespace gles2 {
16
17// A saved definition of a texture that still exists in the underlying
18// GLShareGroup and can be used to redefine a client visible texture in any
19// context using the same GLShareGroup with the corresponding service ID.
20class GPU_EXPORT TextureDefinition {
21 public:
22  struct LevelInfo {
23    LevelInfo(GLenum target,
24              GLenum internal_format,
25              GLsizei width,
26              GLsizei height,
27              GLsizei depth,
28              GLint border,
29              GLenum format,
30              GLenum type,
31              bool cleared);
32    GLenum target;
33    GLenum internal_format;
34    GLsizei width;
35    GLsizei height;
36    GLsizei depth;
37    GLint border;
38    GLenum format;
39    GLenum type;
40    bool cleared;
41  };
42
43  typedef std::vector<std::vector<LevelInfo> > LevelInfos;
44
45  typedef base::Callback<void(TextureDefinition*)> DestroyCallback;
46
47  TextureDefinition(GLenum target,
48                    GLuint service_id,
49                    bool immutable,
50                    const LevelInfos& level_infos);
51  ~TextureDefinition();
52
53  GLenum target() const {
54    return target_;
55  }
56
57  GLuint ReleaseServiceId();
58
59  bool immutable() const { return immutable_; }
60
61  const LevelInfos& level_infos() const {
62    return level_infos_;
63  }
64
65 private:
66  GLenum target_;
67  GLuint service_id_;
68  bool immutable_;
69  std::vector<std::vector<LevelInfo> > level_infos_;
70
71  DISALLOW_COPY_AND_ASSIGN(TextureDefinition);
72};
73
74}  // namespage gles2
75}  // namespace gpu
76
77#endif  // GPU_COMMAND_BUFFER_SERVICE_TEXTURE_DEFINITION_H_
78