| OLD | NEW |
| 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 GrGLSLFragmentProcessor_DEFINED | 8 #ifndef GrGLSLFragmentProcessor_DEFINED |
| 9 #define GrGLSLFragmentProcessor_DEFINED | 9 #define GrGLSLFragmentProcessor_DEFINED |
| 10 | 10 |
| 11 #include "GrFragmentProcessor.h" | 11 #include "GrFragmentProcessor.h" |
| 12 #include "glsl/GrGLSLProcessorTypes.h" | 12 #include "GrShaderVar.h" |
| 13 #include "glsl/GrGLSLProgramDataManager.h" | 13 #include "glsl/GrGLSLProgramDataManager.h" |
| 14 #include "glsl/GrGLSLSampler.h" | 14 #include "glsl/GrGLSLSampler.h" |
| 15 | 15 |
| 16 class GrProcessor; | 16 class GrProcessor; |
| 17 class GrProcessorKeyBuilder; | 17 class GrProcessorKeyBuilder; |
| 18 class GrGLSLCaps; | 18 class GrGLSLCaps; |
| 19 class GrGLSLFPBuilder; | 19 class GrGLSLFPBuilder; |
| 20 class GrGLSLFPFragmentBuilder; | 20 class GrGLSLFPFragmentBuilder; |
| 21 class GrGLSLUniformHandler; | 21 class GrGLSLUniformHandler; |
| 22 | 22 |
| 23 class GrGLSLFragmentProcessor { | 23 class GrGLSLFragmentProcessor { |
| 24 public: | 24 public: |
| 25 GrGLSLFragmentProcessor() {} | 25 GrGLSLFragmentProcessor() {} |
| 26 | 26 |
| 27 virtual ~GrGLSLFragmentProcessor() { | 27 virtual ~GrGLSLFragmentProcessor() { |
| 28 for (int i = 0; i < fChildProcessors.count(); ++i) { | 28 for (int i = 0; i < fChildProcessors.count(); ++i) { |
| 29 delete fChildProcessors[i]; | 29 delete fChildProcessors[i]; |
| 30 } | 30 } |
| 31 } | 31 } |
| 32 | 32 |
| 33 typedef GrGLSLProgramDataManager::UniformHandle UniformHandle; | 33 typedef GrGLSLProgramDataManager::UniformHandle UniformHandle; |
| 34 typedef GrGLSLProgramDataManager::UniformHandle SamplerHandle; | 34 typedef GrGLSLProgramDataManager::UniformHandle SamplerHandle; |
| 35 | 35 |
| 36 /** Called when the program stage should insert its code into the shaders. T
he code in each | 36 /** Called when the program stage should insert its code into the shaders. T
he code in each |
| 37 shader will be in its own block ({}) and so locally scoped names will no
t collide across | 37 shader will be in its own block ({}) and so locally scoped names will no
t collide across |
| 38 stages. | 38 stages. |
| 39 | 39 |
| 40 @param builder Interface used to emit code in the shaders. | 40 @param fragBuilder Interface used to emit code in the shaders. |
| 41 @param processor The processor that generated this program stage. | 41 @param fp The processor that generated this program stage
. |
| 42 @param key The key that was computed by GenKey() from the gener
ating GrProcessor. | 42 @param key The key that was computed by GenKey() from the
generating |
| 43 @param outputColor A predefined vec4 in the FS in which the stage shoul
d place its output | 43 GrProcessor. |
| 44 color (or coverage). | 44 @param outputColor A predefined vec4 in the FS in which the stage
should place its |
| 45 @param inputColor A vec4 that holds the input color to the stage in th
e FS. This may be | 45 output color (or coverage). |
| 46 nullptr in which case the implied input is solid whi
te (all ones). | 46 @param inputColor A vec4 that holds the input color to the stage
in the FS. This may |
| 47 TODO: Better system for communicating optimization i
nfo (e.g. input | 47 be nullptr in which case the implied input is s
olid white (all |
| 48 color is solid white, trans black, known to be opaqu
e, etc.) that allows | 48 ones). TODO: Better system for communicating op
timization info |
| 49 the processor to communicate back similar known info
about its output. | 49 (e.g. input color is solid white, trans black,
known to be opaque, |
| 50 @param samplers Contains one entry for each GrTextureAccess of the G
rProcessor. These | 50 etc.) that allows the processor to communicate
back similar known |
| 51 can be passed to the builder to emit texture reads i
n the generated | 51 info about its output. |
| 52 code. | 52 @param transformedCoords Fragment shader variables containing the coords
computed using |
| 53 each of the GrFragmentProcessor's Coord Transfo
rms. |
| 54 @param texSamplers Contains one entry for each GrTextureAccess of
the GrProcessor. |
| 55 These can be passed to the builder to emit text
ure reads in the |
| 56 generated code. |
| 57 @param bufferSamplers Contains one entry for each GrBufferAccess of t
he GrProcessor. |
| 58 These can be passed to the builder to emit buff
er reads in the |
| 59 generated code. |
| 53 */ | 60 */ |
| 54 | |
| 55 struct EmitArgs { | 61 struct EmitArgs { |
| 56 EmitArgs(GrGLSLFPFragmentBuilder* fragBuilder, | 62 EmitArgs(GrGLSLFPFragmentBuilder* fragBuilder, |
| 57 GrGLSLUniformHandler* uniformHandler, | 63 GrGLSLUniformHandler* uniformHandler, |
| 58 const GrGLSLCaps* caps, | 64 const GrGLSLCaps* caps, |
| 59 const GrFragmentProcessor& fp, | 65 const GrFragmentProcessor& fp, |
| 60 const char* outputColor, | 66 const char* outputColor, |
| 61 const char* inputColor, | 67 const char* inputColor, |
| 62 const GrGLSLTransformedCoordsArray& coords, | 68 const SkTArray<GrShaderVar>& transformedCoords, |
| 63 const SamplerHandle* texSamplers, | 69 const SamplerHandle* texSamplers, |
| 64 const SamplerHandle* bufferSamplers, | 70 const SamplerHandle* bufferSamplers, |
| 65 bool gpImplementsDistanceVector) | 71 bool gpImplementsDistanceVector) |
| 66 : fFragBuilder(fragBuilder) | 72 : fFragBuilder(fragBuilder) |
| 67 , fUniformHandler(uniformHandler) | 73 , fUniformHandler(uniformHandler) |
| 68 , fGLSLCaps(caps) | 74 , fGLSLCaps(caps) |
| 69 , fFp(fp) | 75 , fFp(fp) |
| 70 , fOutputColor(outputColor) | 76 , fOutputColor(outputColor) |
| 71 , fInputColor(inputColor) | 77 , fInputColor(inputColor) |
| 72 , fCoords(coords) | 78 , fTransformedCoords(transformedCoords) |
| 73 , fTexSamplers(texSamplers) | 79 , fTexSamplers(texSamplers) |
| 74 , fBufferSamplers(bufferSamplers) | 80 , fBufferSamplers(bufferSamplers) |
| 75 , fGpImplementsDistanceVector(gpImplementsDistanceVector){} | 81 , fGpImplementsDistanceVector(gpImplementsDistanceVector) {} |
| 76 GrGLSLFPFragmentBuilder* fFragBuilder; | 82 GrGLSLFPFragmentBuilder* fFragBuilder; |
| 77 GrGLSLUniformHandler* fUniformHandler; | 83 GrGLSLUniformHandler* fUniformHandler; |
| 78 const GrGLSLCaps* fGLSLCaps; | 84 const GrGLSLCaps* fGLSLCaps; |
| 79 const GrFragmentProcessor& fFp; | 85 const GrFragmentProcessor& fFp; |
| 80 const char* fOutputColor; | 86 const char* fOutputColor; |
| 81 const char* fInputColor; | 87 const char* fInputColor; |
| 82 const GrGLSLTransformedCoordsArray& fCoords; | 88 const SkTArray<GrShaderVar>& fTransformedCoords; |
| 83 const SamplerHandle* fTexSamplers; | 89 const SamplerHandle* fTexSamplers; |
| 84 const SamplerHandle* fBufferSamplers; | 90 const SamplerHandle* fBufferSamplers; |
| 85 bool fGpImplementsDistanceVector; | 91 bool fGpImplementsDistanceVector; |
| 86 }; | 92 }; |
| 87 | 93 |
| 88 virtual void emitCode(EmitArgs&) = 0; | 94 virtual void emitCode(EmitArgs&) = 0; |
| 89 | 95 |
| 90 void setData(const GrGLSLProgramDataManager& pdman, const GrFragmentProcesso
r& processor); | 96 void setData(const GrGLSLProgramDataManager& pdman, const GrFragmentProcesso
r& processor); |
| 91 | 97 |
| 92 static void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKeyBuil
der*) {} | 98 static void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKeyBuil
der*) {} |
| (...skipping 29 matching lines...) Expand all Loading... |
| 122 | 128 |
| 123 private: | 129 private: |
| 124 void internalEmitChild(int, const char*, const char*, EmitArgs&); | 130 void internalEmitChild(int, const char*, const char*, EmitArgs&); |
| 125 | 131 |
| 126 SkTArray<GrGLSLFragmentProcessor*, true> fChildProcessors; | 132 SkTArray<GrGLSLFragmentProcessor*, true> fChildProcessors; |
| 127 | 133 |
| 128 friend class GrFragmentProcessor; | 134 friend class GrFragmentProcessor; |
| 129 }; | 135 }; |
| 130 | 136 |
| 131 #endif | 137 #endif |
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