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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 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 | 8 |
9 #ifndef GrGLProgram_DEFINED | 9 #ifndef GrGLProgram_DEFINED |
10 #define GrGLProgram_DEFINED | 10 #define GrGLProgram_DEFINED |
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65 fRenderTargetSize.fWidth = -1; | 65 fRenderTargetSize.fWidth = -1; |
66 fRenderTargetSize.fHeight = -1; | 66 fRenderTargetSize.fHeight = -1; |
67 fRenderTargetOrigin = (GrSurfaceOrigin) -1; | 67 fRenderTargetOrigin = (GrSurfaceOrigin) -1; |
68 } | 68 } |
69 | 69 |
70 /** | 70 /** |
71 * Gets a vec4 that adjusts the position from Skia device coords to GL's
normalized device | 71 * Gets a vec4 that adjusts the position from Skia device coords to GL's
normalized device |
72 * coords. Assuming the transformed position, pos, is a homogeneous vec3
, the vec, v, is | 72 * coords. Assuming the transformed position, pos, is a homogeneous vec3
, the vec, v, is |
73 * applied as such: | 73 * applied as such: |
74 * pos.x = dot(v.xy, pos.xz) | 74 * pos.x = dot(v.xy, pos.xz) |
75 * pos.y = dot(v.zq, pos.yz) | 75 * pos.y = dot(v.zw, pos.yz) |
76 */ | 76 */ |
77 void getRTAdjustmentVec(GrGLfloat* destVec) { | 77 void getRTAdjustmentVec(GrGLfloat* destVec) { |
78 destVec[0] = 2.f / fRenderTargetSize.fWidth; | 78 destVec[0] = 2.f / fRenderTargetSize.fWidth; |
79 destVec[1] = -1.f; | 79 destVec[1] = -1.f; |
80 if (kBottomLeft_GrSurfaceOrigin == fRenderTargetOrigin) { | 80 if (kBottomLeft_GrSurfaceOrigin == fRenderTargetOrigin) { |
81 destVec[2] = -2.f / fRenderTargetSize.fHeight; | 81 destVec[2] = -2.f / fRenderTargetSize.fHeight; |
82 destVec[3] = 1.f; | 82 destVec[3] = 1.f; |
83 } else { | 83 } else { |
84 destVec[2] = 2.f / fRenderTargetSize.fHeight; | 84 destVec[2] = 2.f / fRenderTargetSize.fHeight; |
85 destVec[3] = -1.f; | 85 destVec[3] = -1.f; |
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140 GrGLGpu* fGpu; | 140 GrGLGpu* fGpu; |
141 GrGLProgramDataManager fProgramDataManager; | 141 GrGLProgramDataManager fProgramDataManager; |
142 SkTArray<UniformHandle> fSamplerUniforms; | 142 SkTArray<UniformHandle> fSamplerUniforms; |
143 | 143 |
144 friend class GrGLProgramBuilder; | 144 friend class GrGLProgramBuilder; |
145 | 145 |
146 typedef SkRefCnt INHERITED; | 146 typedef SkRefCnt INHERITED; |
147 }; | 147 }; |
148 | 148 |
149 #endif | 149 #endif |
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