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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 |
| (...skipping 50 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 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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