gfx/angle/src/libGLESv2/Buffer.h

branch
TOR_BUG_9701
changeset 15
b8a032363ba2
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-1:000000000000 0:2a82749ff724
1 //
2 // Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file.
5 //
6
7 // Buffer.h: Defines the gl::Buffer class, representing storage of vertex and/or
8 // index data. Implements GL buffer objects and related functionality.
9 // [OpenGL ES 2.0.24] section 2.9 page 21.
10
11 #ifndef LIBGLESV2_BUFFER_H_
12 #define LIBGLESV2_BUFFER_H_
13
14 #include "common/angleutils.h"
15 #include "common/RefCountObject.h"
16 #include "libGLESv2/renderer/IndexRangeCache.h"
17
18 namespace rx
19 {
20 class Renderer;
21 class BufferStorage;
22 class StaticIndexBufferInterface;
23 class StaticVertexBufferInterface;
24 };
25
26 namespace gl
27 {
28
29 class Buffer : public RefCountObject
30 {
31 public:
32 Buffer(rx::Renderer *renderer, GLuint id);
33
34 virtual ~Buffer();
35
36 void bufferData(const void *data, GLsizeiptr size, GLenum usage);
37 void bufferSubData(const void *data, GLsizeiptr size, GLintptr offset);
38
39 GLenum usage() const;
40
41 rx::BufferStorage *getStorage() const;
42 unsigned int size();
43
44 rx::StaticVertexBufferInterface *getStaticVertexBuffer();
45 rx::StaticIndexBufferInterface *getStaticIndexBuffer();
46 void invalidateStaticData();
47 void promoteStaticUsage(int dataSize);
48
49 rx::IndexRangeCache *getIndexRangeCache();
50
51 private:
52 DISALLOW_COPY_AND_ASSIGN(Buffer);
53
54 rx::Renderer *mRenderer;
55 GLenum mUsage;
56
57 rx::BufferStorage *mBufferStorage;
58
59 rx::IndexRangeCache mIndexRangeCache;
60
61 rx::StaticVertexBufferInterface *mStaticVertexBuffer;
62 rx::StaticIndexBufferInterface *mStaticIndexBuffer;
63 unsigned int mUnmodifiedDataUse;
64 };
65
66 }
67
68 #endif // LIBGLESV2_BUFFER_H_

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