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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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| 53 /** | 53 /** |
| 54 * The shader may modify the blend coefficients. Params are in/out. | 54 * The shader may modify the blend coefficients. Params are in/out. |
| 55 */ | 55 */ |
| 56 void overrideBlend(GrBlendCoeff* srcCoeff, GrBlendCoeff* dstCoeff) const; | 56 void overrideBlend(GrBlendCoeff* srcCoeff, GrBlendCoeff* dstCoeff) const; |
| 57 | 57 |
| 58 const GrGLProgramDesc& getDesc() { return fDesc; } | 58 const GrGLProgramDesc& getDesc() { return fDesc; } |
| 59 | 59 |
| 60 /** | 60 /** |
| 61 * Gets the GL program ID for this program. | 61 * Gets the GL program ID for this program. |
| 62 */ | 62 */ |
| 63 GrGLuint programID() const { return fProgramID; } | 63 GrGLuint programID() const { return fBuilderOutput.fProgramID; } |
| 64 | 64 |
| 65 bool hasVertexShader() const { return fHasVertexShader; } | 65 bool hasVertexShader() const { return fBuilderOutput.fHasVertexShader; } |
| 66 | 66 |
| 67 /** | 67 /** |
| 68 * Some GL state that is relevant to programs is not stored per-program. In
particular color | 68 * Some GL state that is relevant to programs is not stored per-program. In
particular color |
| 69 * and coverage attributes can be global state. This struct is read and upda
ted by | 69 * and coverage attributes can be global state. This struct is read and upda
ted by |
| 70 * GrGLProgram::setColor and GrGLProgram::setCoverage to allow us to avoid s
etting this state | 70 * GrGLProgram::setColor and GrGLProgram::setCoverage to allow us to avoid s
etting this state |
| 71 * redundantly. | 71 * redundantly. |
| 72 */ | 72 */ |
| 73 struct SharedGLState { | 73 struct SharedGLState { |
| 74 GrColor fConstAttribColor; | 74 GrColor fConstAttribColor; |
| 75 int fConstAttribColorIndex; | 75 int fConstAttribColorIndex; |
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| 157 */ | 157 */ |
| 158 void setData(GrDrawState::BlendOptFlags, | 158 void setData(GrDrawState::BlendOptFlags, |
| 159 const GrEffectStage* colorStages[], | 159 const GrEffectStage* colorStages[], |
| 160 const GrEffectStage* coverageStages[], | 160 const GrEffectStage* coverageStages[], |
| 161 const GrDeviceCoordTexture* dstCopy, // can be NULL | 161 const GrDeviceCoordTexture* dstCopy, // can be NULL |
| 162 SharedGLState*); | 162 SharedGLState*); |
| 163 | 163 |
| 164 private: | 164 private: |
| 165 typedef GrGLUniformManager::UniformHandle UniformHandle; | 165 typedef GrGLUniformManager::UniformHandle UniformHandle; |
| 166 | 166 |
| 167 GrGLProgram(GrGpuGL* gpu, | 167 GrGLProgram(GrGpuGL*, |
| 168 const GrGLProgramDesc& desc, | 168 const GrGLProgramDesc&, |
| 169 GrGLUniformManager* uman, | 169 GrGLUniformManager*, |
| 170 const GrGLShaderBuilder::GenProgramOutput& builderOutput); | 170 const GrGLShaderBuilder::GenProgramOutput&); |
| 171 | 171 |
| 172 // Sets the texture units for samplers | 172 // Sets the texture units for samplers. |
| 173 void initSamplerUniforms(); | 173 void initSamplerUniforms(); |
| 174 | 174 |
| 175 // Helper for setData(). Makes GL calls to specify the initial color when th
ere is not | 175 // Helper for setData(). Makes GL calls to specify the initial color when th
ere is not |
| 176 // per-vertex colors. | 176 // per-vertex colors. |
| 177 void setColor(const GrDrawState&, GrColor color, SharedGLState*); | 177 void setColor(const GrDrawState&, GrColor color, SharedGLState*); |
| 178 | 178 |
| 179 // Helper for setData(). Makes GL calls to specify the initial coverage when
there is not | 179 // Helper for setData(). Makes GL calls to specify the initial coverage when
there is not |
| 180 // per-vertex coverages. | 180 // per-vertex coverages. |
| 181 void setCoverage(const GrDrawState&, GrColor coverage, SharedGLState*); | 181 void setCoverage(const GrDrawState&, GrColor coverage, SharedGLState*); |
| 182 | 182 |
| 183 // Helper for setData() that sets the view matrix and loads the render targe
t height uniform | 183 // Helper for setData() that sets the view matrix and loads the render targe
t height uniform |
| 184 void setMatrixAndRenderTargetHeight(const GrDrawState&); | 184 void setMatrixAndRenderTargetHeight(const GrDrawState&); |
| 185 | 185 |
| 186 // GL program ID | |
| 187 GrGLuint fProgramID; | |
| 188 | |
| 189 // these reflect the current values of uniforms (GL uniform values travel wi
th program) | 186 // these reflect the current values of uniforms (GL uniform values travel wi
th program) |
| 190 MatrixState fMatrixState; | 187 MatrixState fMatrixState; |
| 191 GrColor fColor; | 188 GrColor fColor; |
| 192 GrColor fCoverage; | 189 GrColor fCoverage; |
| 193 int fDstCopyTexUnit; | 190 int fDstCopyTexUnit; |
| 194 | 191 |
| 195 SkAutoTDelete<GrGLProgramEffects> fColorEffects; | 192 GrGLShaderBuilder::GenProgramOutput fBuilderOutput; |
| 196 SkAutoTDelete<GrGLProgramEffects> fCoverageEffects; | |
| 197 | 193 |
| 198 GrGLProgramDesc fDesc; | 194 GrGLProgramDesc fDesc; |
| 199 | |
| 200 GrGpuGL* fGpu; | 195 GrGpuGL* fGpu; |
| 201 | 196 |
| 202 SkAutoTUnref<GrGLUniformManager> fUniformManager; | 197 SkAutoTUnref<GrGLUniformManager> fUniformManager; |
| 203 GrGLShaderBuilder::UniformHandles fUniformHandles; | |
| 204 | |
| 205 bool fHasVertexShader; | |
| 206 int fTexCoordSetCnt; | |
| 207 | 198 |
| 208 typedef SkRefCnt INHERITED; | 199 typedef SkRefCnt INHERITED; |
| 209 }; | 200 }; |
| 210 | 201 |
| 211 #endif | 202 #endif |
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