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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 GrGLEffectMatrix_DEFINED | 8 #ifndef GrGLEffectMatrix_DEFINED |
| 9 #define GrGLEffectMatrix_DEFINED | 9 #define GrGLEffectMatrix_DEFINED |
| 10 | 10 |
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| 52 * The matrix uses kKeyBits of the effect's EffectKey. A GrGLEffect may plac
e these bits at an | 52 * The matrix uses kKeyBits of the effect's EffectKey. A GrGLEffect may plac
e these bits at an |
| 53 * arbitrary shift in its final key. However, when GrGLEffectMatrix::emitCod
e*() code is called | 53 * arbitrary shift in its final key. However, when GrGLEffectMatrix::emitCod
e*() code is called |
| 54 * the relevant bits must be in the lower kKeyBits of the key parameter. | 54 * the relevant bits must be in the lower kKeyBits of the key parameter. |
| 55 */ | 55 */ |
| 56 enum { | 56 enum { |
| 57 kKeyBits = kKeyBitsPrivate, | 57 kKeyBits = kKeyBitsPrivate, |
| 58 kKeyMask = (1 << kKeyBits) - 1, | 58 kKeyMask = (1 << kKeyBits) - 1, |
| 59 }; | 59 }; |
| 60 | 60 |
| 61 GrGLEffectMatrix(CoordsType coordsType) | 61 GrGLEffectMatrix(CoordsType coordsType) |
| 62 : fUni(GrGLUniformManager::kInvalidUniformHandle) | 62 : fUni(NULL) |
| 63 , fCoordsType(coordsType) { | 63 , fCoordsType(coordsType) { |
| 64 GrAssert(GrEffect::kLocal_CoordsType == coordsType || | 64 GrAssert(GrEffect::kLocal_CoordsType == coordsType || |
| 65 GrEffect::kPosition_CoordsType == coordsType); | 65 GrEffect::kPosition_CoordsType == coordsType); |
| 66 fPrevMatrix = SkMatrix::InvalidMatrix(); | 66 fPrevMatrix = SkMatrix::InvalidMatrix(); |
| 67 } | 67 } |
| 68 | 68 |
| 69 /** | 69 /** |
| 70 * Generates the key for the portion of the code emitted by this class's emi
tCode() function. | 70 * Generates the key for the portion of the code emitted by this class's emi
tCode() function. |
| 71 * Pass a texture to make GrGLEffectMatrix automatically adjust for the text
ure's origin. Pass | 71 * Pass a texture to make GrGLEffectMatrix automatically adjust for the text
ure's origin. Pass |
| 72 * NULL when not using the EffectMatrix for a texture lookup, or if the GrGL
Effect subclass | 72 * NULL when not using the EffectMatrix for a texture lookup, or if the GrGL
Effect subclass |
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| 100 void emitCodeMakeFSCoords2D(GrGLShaderBuilder*, | 100 void emitCodeMakeFSCoords2D(GrGLShaderBuilder*, |
| 101 EffectKey, | 101 EffectKey, |
| 102 const char** fsCoordName, /* optional */ | 102 const char** fsCoordName, /* optional */ |
| 103 const char** vsVaryingName = NULL, | 103 const char** vsVaryingName = NULL, |
| 104 GrSLType* vsVaryingType = NULL, | 104 GrSLType* vsVaryingType = NULL, |
| 105 const char* suffix = NULL); | 105 const char* suffix = NULL); |
| 106 /** | 106 /** |
| 107 * Call from a GrGLEffect's subclass to update the texture matrix. The effec
tMatrix and texture | 107 * Call from a GrGLEffect's subclass to update the texture matrix. The effec
tMatrix and texture |
| 108 * params should match those used with GenKey. | 108 * params should match those used with GenKey. |
| 109 */ | 109 */ |
| 110 void setData(const GrGLUniformManager& uniformManager, | 110 void setData(const GrGLContext& context, |
| 111 const SkMatrix& effectMatrix, | 111 const SkMatrix& effectMatrix, |
| 112 const GrDrawEffect& drawEffect, | 112 const GrDrawEffect& drawEffect, |
| 113 const GrTexture*); | 113 const GrTexture*); |
| 114 | 114 |
| 115 GrGLUniformManager::UniformHandle fUni; | 115 GrGLUniform* fUni; |
| 116 GrSLType fUniType; | 116 GrSLType fUniType; |
| 117 SkMatrix fPrevMatrix; | 117 SkMatrix fPrevMatrix; |
| 118 CoordsType fCoordsType; | 118 CoordsType fCoordsType; |
| 119 }; | 119 }; |
| 120 | 120 |
| 121 #endif | 121 #endif |
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