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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef GrGLBufferImpl_DEFINED | 8 #ifndef GrGLBufferImpl_DEFINED |
9 #define GrGLBufferImpl_DEFINED | 9 #define GrGLBufferImpl_DEFINED |
10 | 10 |
11 #include "SkTypes.h" | 11 #include "SkTypes.h" |
12 #include "gl/GrGLTypes.h" | 12 #include "gl/GrGLTypes.h" |
13 | 13 |
14 class GrGLGpu; | 14 class GrGLGpu; |
15 | 15 |
16 /** | 16 /** |
17 * This class serves as the implementation of GrGL*Buffer classes. It was writte
n to avoid code | 17 * This class serves as the implementation of GrGL*Buffer classes. It was writte
n to avoid code |
18 * duplication in those classes. | 18 * duplication in those classes. |
19 */ | 19 */ |
20 class GrGLBufferImpl : SkNoncopyable { | 20 class GrGLBufferImpl : SkNoncopyable { |
21 public: | 21 public: |
22 enum Usage { | |
23 kStaticDraw_Usage = 0, | |
24 kDynamicDraw_Usage, | |
25 kStreamDraw_Usage, | |
26 kStreamRead_Usage, | |
27 | |
28 kLast_Usage = kStreamRead_Usage | |
29 }; | |
30 static const int kUsageCount = kLast_Usage + 1; | |
31 | |
32 struct Desc { | 22 struct Desc { |
33 GrGLuint fID; // set to 0 to indicate buffer is CPU-backed
and not a VBO. | 23 GrGLuint fID; // set to 0 to indicate buffer is CPU-backed
and not a VBO. |
34 size_t fSizeInBytes; | 24 size_t fSizeInBytes; |
35 Usage fUsage; | 25 bool fDynamic; |
36 }; | 26 }; |
37 | 27 |
38 GrGLBufferImpl(GrGLGpu*, const Desc&, GrGLenum bufferType); | 28 GrGLBufferImpl(GrGLGpu*, const Desc&, GrGLenum bufferType); |
39 ~GrGLBufferImpl() { | 29 ~GrGLBufferImpl() { |
40 // either release or abandon should have been called by the owner of thi
s object. | 30 // either release or abandon should have been called by the owner of thi
s object. |
41 SkASSERT(0 == fDesc.fID); | 31 SkASSERT(0 == fDesc.fID); |
42 } | 32 } |
43 | 33 |
44 void abandon(); | 34 void abandon(); |
45 void release(GrGLGpu* gpu); | 35 void release(GrGLGpu* gpu); |
(...skipping 13 matching lines...) Expand all Loading... |
59 GrGLenum fBufferType; // GL_ARRAY_BUFFER or GL_ELEMENT_ARRAY_BUFFER | 49 GrGLenum fBufferType; // GL_ARRAY_BUFFER or GL_ELEMENT_ARRAY_BUFFER |
60 void* fCPUData; | 50 void* fCPUData; |
61 void* fMapPtr; | 51 void* fMapPtr; |
62 size_t fGLSizeInBytes; // In certain cases we make the size of the
GL buffer object | 52 size_t fGLSizeInBytes; // In certain cases we make the size of the
GL buffer object |
63 // smaller or larger than the size in fDesc
. | 53 // smaller or larger than the size in fDesc
. |
64 | 54 |
65 typedef SkNoncopyable INHERITED; | 55 typedef SkNoncopyable INHERITED; |
66 }; | 56 }; |
67 | 57 |
68 #endif | 58 #endif |
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