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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 GrGLFragmentShaderBuilder_DEFINED | 8 #ifndef GrGLFragmentShaderBuilder_DEFINED |
9 #define GrGLFragmentShaderBuilder_DEFINED | 9 #define GrGLFragmentShaderBuilder_DEFINED |
10 | 10 |
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93 virtual const char* fragmentPosition() SK_OVERRIDE; | 93 virtual const char* fragmentPosition() SK_OVERRIDE; |
94 virtual const char* dstColor() SK_OVERRIDE; | 94 virtual const char* dstColor() SK_OVERRIDE; |
95 | 95 |
96 private: | 96 private: |
97 // Private public interface, used by GrGLProgramBuilder to build a fragment
shader | 97 // Private public interface, used by GrGLProgramBuilder to build a fragment
shader |
98 void emitCodeToReadDstTexture(); | 98 void emitCodeToReadDstTexture(); |
99 void enableCustomOutput(); | 99 void enableCustomOutput(); |
100 void enableSecondaryOutput(); | 100 void enableSecondaryOutput(); |
101 const char* getPrimaryColorOutputName() const; | 101 const char* getPrimaryColorOutputName() const; |
102 const char* getSecondaryColorOutputName() const; | 102 const char* getSecondaryColorOutputName() const; |
| 103 void enableSecondaryOutput(const GrGLSLExpr4& inputColor, const GrGLSLExpr4&
inputCoverage); |
| 104 void combineColorAndCoverage(const GrGLSLExpr4& inputColor, const GrGLSLExpr
4& inputCoverage); |
103 bool compileAndAttachShaders(GrGLuint programId, SkTDArray<GrGLuint>* shader
Ids) const; | 105 bool compileAndAttachShaders(GrGLuint programId, SkTDArray<GrGLuint>* shader
Ids) const; |
104 void bindFragmentShaderLocations(GrGLuint programID); | 106 void bindFragmentShaderLocations(GrGLuint programID); |
105 | 107 |
106 // As GLProcessors emit code, there are some conditions we need to verify.
We use the below | 108 // As GLProcessors emit code, there are some conditions we need to verify.
We use the below |
107 // state to track this. The reset call is called per processor emitted. | 109 // state to track this. The reset call is called per processor emitted. |
108 bool hasReadDstColor() const { return fHasReadDstColor; } | 110 bool hasReadDstColor() const { return fHasReadDstColor; } |
109 bool hasReadFragmentPosition() const { return fHasReadFragmentPosition; } | 111 bool hasReadFragmentPosition() const { return fHasReadFragmentPosition; } |
110 void reset() { | 112 void reset() { |
111 fHasReadDstColor = false; | 113 fHasReadDstColor = false; |
112 fHasReadFragmentPosition = false; | 114 fHasReadFragmentPosition = false; |
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153 bool fHasReadDstColor; | 155 bool fHasReadDstColor; |
154 bool fHasReadFragmentPosition; | 156 bool fHasReadFragmentPosition; |
155 | 157 |
156 friend class GrGLNvprProgramBuilder; | 158 friend class GrGLNvprProgramBuilder; |
157 friend class GrGLProgramBuilder; | 159 friend class GrGLProgramBuilder; |
158 | 160 |
159 typedef GrGLFPFragmentBuilder INHERITED; | 161 typedef GrGLFPFragmentBuilder INHERITED; |
160 }; | 162 }; |
161 | 163 |
162 #endif | 164 #endif |
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