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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 |
| 11 | 11 |
| 12 #include "builders/GrGLProgramBuilder.h" | 12 #include "builders/GrGLProgramBuilder.h" |
| 13 #include "GrDrawState.h" | 13 #include "GrDrawState.h" |
| 14 #include "GrGLContext.h" | 14 #include "GrGLContext.h" |
| 15 #include "GrGLProgramDesc.h" | 15 #include "GrGLProgramDesc.h" |
| 16 #include "GrGLSL.h" | 16 #include "GrGLSL.h" |
| 17 #include "GrGLTexture.h" | 17 #include "GrGLTexture.h" |
| 18 #include "GrGLProgramDataManager.h" | 18 #include "GrGLProgramDataManager.h" |
| 19 | 19 |
| 20 #include "SkString.h" | 20 #include "SkString.h" |
| 21 #include "SkXfermode.h" | 21 #include "SkXfermode.h" |
| 22 | 22 |
| 23 class GrGLEffect; | 23 class GrGLProcessor; |
| 24 class GrGLProgramEffects; | 24 class GrGLProgramEffects; |
| 25 class GrGLProgramBuilder; | 25 class GrGLProgramBuilder; |
| 26 | 26 |
| 27 /** | 27 /** |
| 28 * This class manages a GPU program and records per-program information. | 28 * This class manages a GPU program and records per-program information. |
| 29 * We can specify the attribute locations so that they are constant | 29 * We can specify the attribute locations so that they are constant |
| 30 * across our shaders. But the driver determines the uniform locations | 30 * across our shaders. But the driver determines the uniform locations |
| 31 * at link time. We don't need to remember the sampler uniform location | 31 * at link time. We don't need to remember the sampler uniform location |
| 32 * because we will bind a texture slot to it and never change it | 32 * because we will bind a texture slot to it and never change it |
| 33 * Uniforms are program-local so we can't rely on fHWState to hold the | 33 * Uniforms are program-local so we can't rely on fHWState to hold the |
| 34 * previous uniform state after a program change. | 34 * previous uniform state after a program change. |
| 35 */ | 35 */ |
| 36 class GrGLProgram : public SkRefCnt { | 36 class GrGLProgram : public SkRefCnt { |
| 37 public: | 37 public: |
| 38 SK_DECLARE_INST_COUNT(GrGLProgram) | 38 SK_DECLARE_INST_COUNT(GrGLProgram) |
| 39 | 39 |
| 40 typedef GrGLProgramBuilder::BuiltinUniformHandles BuiltinUniformHandles; | 40 typedef GrGLProgramBuilder::BuiltinUniformHandles BuiltinUniformHandles; |
| 41 | 41 |
| 42 static GrGLProgram* Create(GrGpuGL* gpu, | 42 static GrGLProgram* Create(GrGpuGL* gpu, |
| 43 const GrGLProgramDesc& desc, | 43 const GrGLProgramDesc& desc, |
| 44 const GrEffectStage* geometryProcessor, | 44 const GrGeometryStage* geometryProcessor, |
| 45 const GrEffectStage* colorStages[], | 45 const GrFragmentStage* colorStages[], |
| 46 const GrEffectStage* coverageStages[]); | 46 const GrFragmentStage* coverageStages[]); |
| 47 | 47 |
| 48 virtual ~GrGLProgram(); | 48 virtual ~GrGLProgram(); |
| 49 | 49 |
| 50 /** | 50 /** |
| 51 * Call to abandon GL objects owned by this program. | 51 * Call to abandon GL objects owned by this program. |
| 52 */ | 52 */ |
| 53 void abandon(); | 53 void abandon(); |
| 54 | 54 |
| 55 const GrGLProgramDesc& getDesc() { return fDesc; } | 55 const GrGLProgramDesc& getDesc() { return fDesc; } |
| 56 | 56 |
| (...skipping 83 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 140 destVec[2] = -2.f / fRenderTargetSize.fHeight; | 140 destVec[2] = -2.f / fRenderTargetSize.fHeight; |
| 141 destVec[3] = 1.f; | 141 destVec[3] = 1.f; |
| 142 } else { | 142 } else { |
| 143 destVec[2] = 2.f / fRenderTargetSize.fHeight; | 143 destVec[2] = 2.f / fRenderTargetSize.fHeight; |
| 144 destVec[3] = -1.f; | 144 destVec[3] = -1.f; |
| 145 } | 145 } |
| 146 } | 146 } |
| 147 }; | 147 }; |
| 148 | 148 |
| 149 /** | 149 /** |
| 150 * This function uploads uniforms and calls each GrGLEffect's setData. It is
called before a | 150 * This function uploads uniforms and calls each GrGLProcessor's setData. It
is called before a |
| 151 * draw occurs using the program after the program has already been bound. I
t also uses the | 151 * draw occurs using the program after the program has already been bound. I
t also uses the |
| 152 * GrGpuGL object to bind the textures required by the GrGLEffects. The colo
r and coverage | 152 * GrGpuGL object to bind the textures required by the GrGLProcessors. The c
olor and coverage |
| 153 * stages come from GrGLProgramDesc::Build(). | 153 * stages come from GrGLProgramDesc::Build(). |
| 154 */ | 154 */ |
| 155 void setData(const GrOptDrawState&, | 155 void setData(const GrOptDrawState&, |
| 156 GrGpu::DrawType, | 156 GrGpu::DrawType, |
| 157 const GrEffectStage* geometryProcessor, | 157 const GrGeometryStage* geometryProcessor, |
| 158 const GrEffectStage* colorStages[], | 158 const GrFragmentStage* colorStages[], |
| 159 const GrEffectStage* coverageStages[], | 159 const GrFragmentStage* coverageStages[], |
| 160 const GrDeviceCoordTexture* dstCopy, // can be NULL | 160 const GrDeviceCoordTexture* dstCopy, // can be NULL |
| 161 SharedGLState*); | 161 SharedGLState*); |
| 162 | 162 |
| 163 private: | 163 private: |
| 164 typedef GrGLProgramDataManager::UniformHandle UniformHandle; | 164 typedef GrGLProgramDataManager::UniformHandle UniformHandle; |
| 165 | 165 |
| 166 GrGLProgram(GrGpuGL*, | 166 GrGLProgram(GrGpuGL*, |
| 167 const GrGLProgramDesc&, | 167 const GrGLProgramDesc&, |
| 168 const GrGLProgramBuilder&); | 168 const GrGLProgramBuilder&); |
| 169 | 169 |
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| 197 | 197 |
| 198 GrGLProgramDesc fDesc; | 198 GrGLProgramDesc fDesc; |
| 199 GrGpuGL* fGpu; | 199 GrGpuGL* fGpu; |
| 200 | 200 |
| 201 GrGLProgramDataManager fProgramDataManager; | 201 GrGLProgramDataManager fProgramDataManager; |
| 202 | 202 |
| 203 typedef SkRefCnt INHERITED; | 203 typedef SkRefCnt INHERITED; |
| 204 }; | 204 }; |
| 205 | 205 |
| 206 #endif | 206 #endif |
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