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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 GrGLVertexArray_DEFINED | 8 #ifndef GrGLVertexArray_DEFINED |
9 #define GrGLVertexArray_DEFINED | 9 #define GrGLVertexArray_DEFINED |
10 | 10 |
11 #include "GrTypesPriv.h" | 11 #include "GrTypesPriv.h" |
12 #include "gl/GrGLDefines.h" | 12 #include "gl/GrGLDefines.h" |
13 #include "gl/GrGLTypes.h" | 13 #include "gl/GrGLTypes.h" |
14 #include "SkTArray.h" | 14 #include "SkTArray.h" |
15 | 15 |
16 class GrGLBuffer; | 16 class GrBuffer; |
17 class GrGLGpu; | 17 class GrGLGpu; |
18 | 18 |
19 /** | 19 /** |
20 * This sets and tracks the vertex attribute array state. It is used internally
by GrGLVertexArray | 20 * This sets and tracks the vertex attribute array state. It is used internally
by GrGLVertexArray |
21 * (below) but is separate because it is also used to track the state of vertex
array object 0. | 21 * (below) but is separate because it is also used to track the state of vertex
array object 0. |
22 */ | 22 */ |
23 class GrGLAttribArrayState { | 23 class GrGLAttribArrayState { |
24 public: | 24 public: |
25 explicit GrGLAttribArrayState(int arrayCount = 0) { | 25 explicit GrGLAttribArrayState(int arrayCount = 0) { |
26 this->resize(arrayCount); | 26 this->resize(arrayCount); |
27 } | 27 } |
28 | 28 |
29 void resize(int newCount) { | 29 void resize(int newCount) { |
30 fAttribArrayStates.resize_back(newCount); | 30 fAttribArrayStates.resize_back(newCount); |
31 for (int i = 0; i < newCount; ++i) { | 31 for (int i = 0; i < newCount; ++i) { |
32 fAttribArrayStates[i].invalidate(); | 32 fAttribArrayStates[i].invalidate(); |
33 } | 33 } |
34 } | 34 } |
35 | 35 |
36 /** | 36 /** |
37 * This function enables and sets vertex attrib state for the specified attr
ib index. It is | 37 * This function enables and sets vertex attrib state for the specified attr
ib index. It is |
38 * assumed that the GrGLAttribArrayState is tracking the state of the curren
tly bound vertex | 38 * assumed that the GrGLAttribArrayState is tracking the state of the curren
tly bound vertex |
39 * array object. | 39 * array object. |
40 */ | 40 */ |
41 void set(GrGLGpu*, | 41 void set(GrGLGpu*, |
42 int attribIndex, | 42 int attribIndex, |
43 const GrGLBuffer* vertexBuffer, | 43 const GrBuffer* vertexBuffer, |
44 GrVertexAttribType type, | 44 GrVertexAttribType type, |
45 GrGLsizei stride, | 45 GrGLsizei stride, |
46 GrGLvoid* offset); | 46 GrGLvoid* offset); |
47 | 47 |
48 /** | 48 /** |
49 * This function disables vertex attribs not present in the mask. It is assu
med that the | 49 * This function disables vertex attribs not present in the mask. It is assu
med that the |
50 * GrGLAttribArrayState is tracking the state of the currently bound vertex
array object. | 50 * GrGLAttribArrayState is tracking the state of the currently bound vertex
array object. |
51 */ | 51 */ |
52 void disableUnusedArrays(const GrGLGpu*, uint64_t usedAttribArrayMask); | 52 void disableUnusedArrays(const GrGLGpu*, uint64_t usedAttribArrayMask); |
53 | 53 |
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96 * Binds this vertex array. If the ID has been deleted or abandoned then nul
lptr is returned. | 96 * Binds this vertex array. If the ID has been deleted or abandoned then nul
lptr is returned. |
97 * Otherwise, the GrGLAttribArrayState that is tracking this vertex array's
attrib bindings is | 97 * Otherwise, the GrGLAttribArrayState that is tracking this vertex array's
attrib bindings is |
98 * returned. | 98 * returned. |
99 */ | 99 */ |
100 GrGLAttribArrayState* bind(GrGLGpu*); | 100 GrGLAttribArrayState* bind(GrGLGpu*); |
101 | 101 |
102 /** | 102 /** |
103 * This is a version of the above function that also binds an index buffer t
o the vertex | 103 * This is a version of the above function that also binds an index buffer t
o the vertex |
104 * array object. | 104 * array object. |
105 */ | 105 */ |
106 GrGLAttribArrayState* bindWithIndexBuffer(GrGLGpu* gpu, const GrGLBuffer* in
dexBuffer); | 106 GrGLAttribArrayState* bindWithIndexBuffer(GrGLGpu* gpu, const GrBuffer* inde
xBuffer); |
107 | 107 |
108 GrGLuint arrayID() const { return fID; } | 108 GrGLuint arrayID() const { return fID; } |
109 | 109 |
110 void invalidateCachedState(); | 110 void invalidateCachedState(); |
111 | 111 |
112 private: | 112 private: |
113 GrGLuint fID; | 113 GrGLuint fID; |
114 GrGLAttribArrayState fAttribArrays; | 114 GrGLAttribArrayState fAttribArrays; |
115 uint32_t fIndexBufferUniqueID; | 115 uint32_t fIndexBufferUniqueID; |
116 }; | 116 }; |
117 | 117 |
118 #endif | 118 #endif |
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