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Side by Side Diff: src/gpu/gl/GrGLEffect.h

Issue 491673002: Initial refactor of shaderbuilder (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 6 years, 4 months ago
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1 /* 1 /*
2 * Copyright 2012 Google Inc. 2 * Copyright 2012 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 GrGLEffect_DEFINED 8 #ifndef GrGLEffect_DEFINED
9 #define GrGLEffect_DEFINED 9 #define GrGLEffect_DEFINED
10 10
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61 color (or coverage). 61 color (or coverage).
62 @param inputColor A vec4 that holds the input color to the stage in th e FS. This may be 62 @param inputColor A vec4 that holds the input color to the stage in th e FS. This may be
63 NULL in which case the implied input is solid white (all ones). 63 NULL in which case the implied input is solid white (all ones).
64 TODO: Better system for communicating optimization i nfo (e.g. input 64 TODO: Better system for communicating optimization i nfo (e.g. input
65 color is solid white, trans black, known to be opaqu e, etc.) that allows 65 color is solid white, trans black, known to be opaqu e, etc.) that allows
66 the effect to communicate back similar known info ab out its output. 66 the effect to communicate back similar known info ab out its output.
67 @param samplers One entry for each GrTextureAccess of the GrEffect t hat generated the 67 @param samplers One entry for each GrTextureAccess of the GrEffect t hat generated the
68 GrGLEffect. These can be passed to the builder to em it texture 68 GrGLEffect. These can be passed to the builder to em it texture
69 reads in the generated code. 69 reads in the generated code.
70 */ 70 */
71 virtual void emitCode(GrGLShaderBuilder* builder, 71 virtual void emitCode(GrGLProgramBuilder* builder,
72 const GrDrawEffect& drawEffect, 72 const GrDrawEffect& drawEffect,
73 const GrEffectKey& key, 73 const GrEffectKey& key,
74 const char* outputColor, 74 const char* outputColor,
75 const char* inputColor, 75 const char* inputColor,
76 const TransformedCoordsArray& coords, 76 const TransformedCoordsArray& coords,
77 const TextureSamplerArray& samplers) = 0; 77 const TextureSamplerArray& samplers) = 0;
78 78
79 /** A GrGLEffect instance can be reused with any GrEffect that produces the same stage 79 /** A GrGLEffect instance can be reused with any GrEffect that produces the same stage
80 key; this function reads data from a GrEffect and uploads any uniform va riables required 80 key; this function reads data from a GrEffect and uploads any uniform va riables required
81 by the shaders created in emitCode(). The GrEffect installed in the GrDr awEffect is 81 by the shaders created in emitCode(). The GrEffect installed in the GrDr awEffect is
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96 protected: 96 protected:
97 const GrBackendEffectFactory& fFactory; 97 const GrBackendEffectFactory& fFactory;
98 98
99 private: 99 private:
100 friend class GrGLVertexEffect; // to set fIsVertexEffect 100 friend class GrGLVertexEffect; // to set fIsVertexEffect
101 101
102 bool fIsVertexEffect; 102 bool fIsVertexEffect;
103 }; 103 };
104 104
105 #endif 105 #endif
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