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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 GrGLProgramDesc_DEFINED | 8 #ifndef GrGLProgramDesc_DEFINED |
9 #define GrGLProgramDesc_DEFINED | 9 #define GrGLProgramDesc_DEFINED |
10 | 10 |
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106 // Specifies where the initial color comes from before the stages are applie
d. | 106 // Specifies where the initial color comes from before the stages are applie
d. |
107 enum ColorInput { | 107 enum ColorInput { |
108 kSolidWhite_ColorInput, | 108 kSolidWhite_ColorInput, |
109 kTransBlack_ColorInput, | 109 kTransBlack_ColorInput, |
110 kAttribute_ColorInput, | 110 kAttribute_ColorInput, |
111 kUniform_ColorInput, | 111 kUniform_ColorInput, |
112 | 112 |
113 kColorInputCnt | 113 kColorInputCnt |
114 }; | 114 }; |
115 | 115 |
| 116 static GrSLConstantVec KnownColorInputValue(ColorInput ci) { |
| 117 switch (ci) { |
| 118 case GrGLProgramDesc::kTransBlack_ColorInput: |
| 119 return kZeros_GrSLConstantVec; |
| 120 case GrGLProgramDesc::kSolidWhite_ColorInput: |
| 121 return kOnes_GrSLConstantVec; |
| 122 default: |
| 123 return kNone_GrSLConstantVec; |
| 124 } |
| 125 } |
| 126 |
116 enum CoverageOutput { | 127 enum CoverageOutput { |
117 // modulate color and coverage, write result as the color output. | 128 // modulate color and coverage, write result as the color output. |
118 kModulate_CoverageOutput, | 129 kModulate_CoverageOutput, |
119 // Writes color*coverage as the primary color output and also writes cov
erage as the | 130 // Writes color*coverage as the primary color output and also writes cov
erage as the |
120 // secondary output. Only set if dual source blending is supported. | 131 // secondary output. Only set if dual source blending is supported. |
121 kSecondaryCoverage_CoverageOutput, | 132 kSecondaryCoverage_CoverageOutput, |
122 // Writes color*coverage as the primary color output and also writes cov
erage * (1 - colorA) | 133 // Writes color*coverage as the primary color output and also writes cov
erage * (1 - colorA) |
123 // as the secondary output. Only set if dual source blending is supporte
d. | 134 // as the secondary output. Only set if dual source blending is supporte
d. |
124 kSecondaryCoverageISA_CoverageOutput, | 135 kSecondaryCoverageISA_CoverageOutput, |
125 // Writes color*coverage as the primary color output and also writes cov
erage * | 136 // Writes color*coverage as the primary color output and also writes cov
erage * |
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214 kPreAllocSize = kEffectKeyOffset + kMaxPreallocEffects * sizeof(EffectK
ey), | 225 kPreAllocSize = kEffectKeyOffset + kMaxPreallocEffects * sizeof(EffectK
ey), |
215 }; | 226 }; |
216 | 227 |
217 SkAutoSMalloc<kPreAllocSize> fKey; | 228 SkAutoSMalloc<kPreAllocSize> fKey; |
218 bool fInitialized; | 229 bool fInitialized; |
219 | 230 |
220 // GrGLProgram and GrGLShaderBuilder read the private fields to generate cod
e. TODO: Move all | 231 // GrGLProgram and GrGLShaderBuilder read the private fields to generate cod
e. TODO: Move all |
221 // code generation to GrGLShaderBuilder (and maybe add getters rather than f
riending). | 232 // code generation to GrGLShaderBuilder (and maybe add getters rather than f
riending). |
222 friend class GrGLProgram; | 233 friend class GrGLProgram; |
223 friend class GrGLShaderBuilder; | 234 friend class GrGLShaderBuilder; |
| 235 friend class GrGLFullShaderBuilder; |
224 }; | 236 }; |
225 | 237 |
226 #endif | 238 #endif |
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