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| 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 GrDistanceFieldTextureEffect_DEFINED | 8 #ifndef GrDistanceFieldTextureEffect_DEFINED |
| 9 #define GrDistanceFieldTextureEffect_DEFINED | 9 #define GrDistanceFieldTextureEffect_DEFINED |
| 10 | 10 |
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| 79 | 79 |
| 80 GrTextureAccess fTextureAccess; | 80 GrTextureAccess fTextureAccess; |
| 81 #ifdef SK_GAMMA_APPLY_TO_A8 | 81 #ifdef SK_GAMMA_APPLY_TO_A8 |
| 82 GrTextureAccess fGammaTextureAccess; | 82 GrTextureAccess fGammaTextureAccess; |
| 83 float fLuminance; | 83 float fLuminance; |
| 84 #endif | 84 #endif |
| 85 uint32_t fFlags; | 85 uint32_t fFlags; |
| 86 | 86 |
| 87 GR_DECLARE_EFFECT_TEST; | 87 GR_DECLARE_EFFECT_TEST; |
| 88 | 88 |
| 89 typedef GrVertexEffect INHERITED; | 89 typedef GrEffect INHERITED; |
| 90 }; | 90 }; |
| 91 | 91 |
| 92 /** | 92 /** |
| 93 * The output color of this effect is a modulation of the input color and sample
s from a | 93 * The output color of this effect is a modulation of the input color and sample
s from a |
| 94 * distance field texture (using a smoothed step function near 0.5), adjusted fo
r LCD displays. | 94 * distance field texture (using a smoothed step function near 0.5), adjusted fo
r LCD displays. |
| 95 * It allows explicit specification of the filtering and wrap modes (GrTexturePa
rams). The input | 95 * It allows explicit specification of the filtering and wrap modes (GrTexturePa
rams). The input |
| 96 * coords are a custom attribute. Gamma correction is handled via a texture LUT. | 96 * coords are a custom attribute. Gamma correction is handled via a texture LUT. |
| 97 */ | 97 */ |
| 98 class GrDistanceFieldLCDTextureEffect : public GrVertexEffect { | 98 class GrDistanceFieldLCDTextureEffect : public GrVertexEffect { |
| 99 public: | 99 public: |
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| 124 | 124 |
| 125 virtual bool onIsEqual(const GrEffect& other) const SK_OVERRIDE; | 125 virtual bool onIsEqual(const GrEffect& other) const SK_OVERRIDE; |
| 126 | 126 |
| 127 GrTextureAccess fTextureAccess; | 127 GrTextureAccess fTextureAccess; |
| 128 GrTextureAccess fGammaTextureAccess; | 128 GrTextureAccess fGammaTextureAccess; |
| 129 GrColor fTextColor; | 129 GrColor fTextColor; |
| 130 uint32_t fFlags; | 130 uint32_t fFlags; |
| 131 | 131 |
| 132 GR_DECLARE_EFFECT_TEST; | 132 GR_DECLARE_EFFECT_TEST; |
| 133 | 133 |
| 134 typedef GrVertexEffect INHERITED; | 134 typedef GrEffect INHERITED; |
| 135 }; | 135 }; |
| 136 | 136 |
| 137 #endif | 137 #endif |
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