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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 GrDistanceFieldGeoProc_DEFINED | 8 #ifndef GrDistanceFieldGeoProc_DEFINED |
| 9 #define GrDistanceFieldGeoProc_DEFINED | 9 #define GrDistanceFieldGeoProc_DEFINED |
| 10 | 10 |
| 11 #include "GrProcessor.h" | 11 #include "GrProcessor.h" |
| 12 #include "GrGeometryProcessor.h" | 12 #include "GrGeometryProcessor.h" |
| 13 | 13 |
| 14 class GrGLDistanceFieldA8TextGeoProc; | 14 class GrGLDistanceFieldA8TextGeoProc; |
| 15 class GrGLDistanceFieldPathGeoProc; | 15 class GrGLDistanceFieldPathGeoProc; |
| 16 class GrGLDistanceFieldLCDTextGeoProc; | 16 class GrGLDistanceFieldLCDTextGeoProc; |
| 17 class GrInvariantOutput; | 17 class GrInvariantOutput; |
| 18 | 18 |
| 19 enum GrDistanceFieldEffectFlags { | 19 enum GrDistanceFieldEffectFlags { |
| 20 kSimilarity_DistanceFieldEffectFlag = 0x01, // ctm is similarity matrix | 20 kSimilarity_DistanceFieldEffectFlag = 0x01, // ctm is similarity matrix |
| 21 kRectToRect_DistanceFieldEffectFlag = 0x02, // ctm maps rects to rects | 21 kRectToRect_DistanceFieldEffectFlag = 0x02, // ctm maps rects to rects |
| 22 kUseLCD_DistanceFieldEffectFlag = 0x04, // use lcd text | 22 kUseLCD_DistanceFieldEffectFlag = 0x04, // use lcd text |
| 23 kBGR_DistanceFieldEffectFlag = 0x08, // lcd display has bgr order | 23 kBGR_DistanceFieldEffectFlag = 0x08, // lcd display has bgr order |
| 24 kPortrait_DistanceFieldEffectFlag = 0x10, // lcd display is in portrait
mode (not used yet) | 24 kPortrait_DistanceFieldEffectFlag = 0x10, // lcd display is in portrait
mode (not used yet) |
| 25 kColorAttr_DistanceFieldEffectFlag = 0x20, // color vertex attribute | |
| 26 | 25 |
| 27 kInvalid_DistanceFieldEffectFlag = 0x80, // invalid state (for initiali
zation) | 26 kInvalid_DistanceFieldEffectFlag = 0x80, // invalid state (for initiali
zation) |
| 28 | 27 |
| 29 kUniformScale_DistanceFieldEffectMask = kSimilarity_DistanceFieldEffectFlag
| | 28 kUniformScale_DistanceFieldEffectMask = kSimilarity_DistanceFieldEffectFlag
| |
| 30 kRectToRect_DistanceFieldEffectFlag, | 29 kRectToRect_DistanceFieldEffectFlag, |
| 31 // The subset of the flags relevant to GrDistanceFieldA8TextGeoProc | 30 // The subset of the flags relevant to GrDistanceFieldA8TextGeoProc |
| 32 kNonLCD_DistanceFieldEffectMask = kSimilarity_DistanceFieldEffectFlag
| | 31 kNonLCD_DistanceFieldEffectMask = kSimilarity_DistanceFieldEffectFlag, |
| 33 kColorAttr_DistanceFieldEffectFlag, | |
| 34 // The subset of the flags relevant to GrDistanceFieldLCDTextGeoProc | 32 // The subset of the flags relevant to GrDistanceFieldLCDTextGeoProc |
| 35 kLCD_DistanceFieldEffectMask = kSimilarity_DistanceFieldEffectFlag
| | 33 kLCD_DistanceFieldEffectMask = kSimilarity_DistanceFieldEffectFlag
| |
| 36 kRectToRect_DistanceFieldEffectFlag
| | 34 kRectToRect_DistanceFieldEffectFlag
| |
| 37 kUseLCD_DistanceFieldEffectFlag | | 35 kUseLCD_DistanceFieldEffectFlag | |
| 38 kBGR_DistanceFieldEffectFlag | | 36 kBGR_DistanceFieldEffectFlag, |
| 39 kColorAttr_DistanceFieldEffectFlag, | |
| 40 }; | 37 }; |
| 41 | 38 |
| 42 /** | 39 /** |
| 43 * The output color of this effect is a modulation of the input color and a samp
le from a | 40 * The output color of this effect is a modulation of the input color and a samp
le from a |
| 44 * distance field texture (using a smoothed step function near 0.5). | 41 * distance field texture (using a smoothed step function near 0.5). |
| 45 * It allows explicit specification of the filtering and wrap modes (GrTexturePa
rams). The input | 42 * It allows explicit specification of the filtering and wrap modes (GrTexturePa
rams). The input |
| 46 * coords are a custom attribute. Gamma correction is handled via a texture LUT. | 43 * coords are a custom attribute. Gamma correction is handled via a texture LUT. |
| 47 */ | 44 */ |
| 48 class GrDistanceFieldA8TextGeoProc : public GrGeometryProcessor { | 45 class GrDistanceFieldA8TextGeoProc : public GrGeometryProcessor { |
| 49 public: | 46 public: |
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| 65 | 62 |
| 66 virtual ~GrDistanceFieldA8TextGeoProc() {} | 63 virtual ~GrDistanceFieldA8TextGeoProc() {} |
| 67 | 64 |
| 68 const char* name() const override { return "DistanceFieldTexture"; } | 65 const char* name() const override { return "DistanceFieldTexture"; } |
| 69 | 66 |
| 70 const Attribute* inPosition() const { return fInPosition; } | 67 const Attribute* inPosition() const { return fInPosition; } |
| 71 const Attribute* inColor() const { return fInColor; } | 68 const Attribute* inColor() const { return fInColor; } |
| 72 const Attribute* inTextureCoords() const { return fInTextureCoords; } | 69 const Attribute* inTextureCoords() const { return fInTextureCoords; } |
| 73 GrColor color() const { return fColor; } | 70 GrColor color() const { return fColor; } |
| 74 bool colorIgnored() const { return GrColor_ILLEGAL == fColor; } | 71 bool colorIgnored() const { return GrColor_ILLEGAL == fColor; } |
| 75 bool hasVertexColor() const { return SkToBool(fInColor); } | |
| 76 const SkMatrix& viewMatrix() const { return fViewMatrix; } | 72 const SkMatrix& viewMatrix() const { return fViewMatrix; } |
| 77 bool usesLocalCoords() const { return fUsesLocalCoords; } | 73 bool usesLocalCoords() const { return fUsesLocalCoords; } |
| 78 #ifdef SK_GAMMA_APPLY_TO_A8 | 74 #ifdef SK_GAMMA_APPLY_TO_A8 |
| 79 float getDistanceAdjust() const { return fDistanceAdjust; } | 75 float getDistanceAdjust() const { return fDistanceAdjust; } |
| 80 #endif | 76 #endif |
| 81 uint32_t getFlags() const { return fFlags; } | 77 uint32_t getFlags() const { return fFlags; } |
| 82 | 78 |
| 83 void getGLSLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) c
onst override; | 79 void getGLSLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) c
onst override; |
| 84 | 80 |
| 85 GrGLSLPrimitiveProcessor* createGLSLInstance(const GrGLSLCaps&) const overri
de; | 81 GrGLSLPrimitiveProcessor* createGLSLInstance(const GrGLSLCaps&) const overri
de; |
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| 127 | 123 |
| 128 virtual ~GrDistanceFieldPathGeoProc() {} | 124 virtual ~GrDistanceFieldPathGeoProc() {} |
| 129 | 125 |
| 130 const char* name() const override { return "DistanceFieldTexture"; } | 126 const char* name() const override { return "DistanceFieldTexture"; } |
| 131 | 127 |
| 132 const Attribute* inPosition() const { return fInPosition; } | 128 const Attribute* inPosition() const { return fInPosition; } |
| 133 const Attribute* inColor() const { return fInColor; } | 129 const Attribute* inColor() const { return fInColor; } |
| 134 const Attribute* inTextureCoords() const { return fInTextureCoords; } | 130 const Attribute* inTextureCoords() const { return fInTextureCoords; } |
| 135 GrColor color() const { return fColor; } | 131 GrColor color() const { return fColor; } |
| 136 bool colorIgnored() const { return GrColor_ILLEGAL == fColor; } | 132 bool colorIgnored() const { return GrColor_ILLEGAL == fColor; } |
| 137 bool hasVertexColor() const { return SkToBool(fInColor); } | |
| 138 const SkMatrix& viewMatrix() const { return fViewMatrix; } | 133 const SkMatrix& viewMatrix() const { return fViewMatrix; } |
| 139 uint32_t getFlags() const { return fFlags; } | 134 uint32_t getFlags() const { return fFlags; } |
| 140 bool usesLocalCoords() const { return fUsesLocalCoords; } | 135 bool usesLocalCoords() const { return fUsesLocalCoords; } |
| 141 | 136 |
| 142 void getGLSLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) c
onst override; | 137 void getGLSLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) c
onst override; |
| 143 | 138 |
| 144 GrGLSLPrimitiveProcessor* createGLSLInstance(const GrGLSLCaps&) const overri
de; | 139 GrGLSLPrimitiveProcessor* createGLSLInstance(const GrGLSLCaps&) const overri
de; |
| 145 | 140 |
| 146 private: | 141 private: |
| 147 GrDistanceFieldPathGeoProc(GrColor, const SkMatrix& viewMatrix, GrTexture* t
exture, | 142 GrDistanceFieldPathGeoProc(GrColor, const SkMatrix& viewMatrix, GrTexture* t
exture, |
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| 196 virtual ~GrDistanceFieldLCDTextGeoProc() {} | 191 virtual ~GrDistanceFieldLCDTextGeoProc() {} |
| 197 | 192 |
| 198 const char* name() const override { return "DistanceFieldLCDTexture"; } | 193 const char* name() const override { return "DistanceFieldLCDTexture"; } |
| 199 | 194 |
| 200 const Attribute* inPosition() const { return fInPosition; } | 195 const Attribute* inPosition() const { return fInPosition; } |
| 201 const Attribute* inColor() const { return fInColor; } | 196 const Attribute* inColor() const { return fInColor; } |
| 202 const Attribute* inTextureCoords() const { return fInTextureCoords; } | 197 const Attribute* inTextureCoords() const { return fInTextureCoords; } |
| 203 DistanceAdjust getDistanceAdjust() const { return fDistanceAdjust; } | 198 DistanceAdjust getDistanceAdjust() const { return fDistanceAdjust; } |
| 204 GrColor color() const { return fColor; } | 199 GrColor color() const { return fColor; } |
| 205 bool colorIgnored() const { return GrColor_ILLEGAL == fColor; } | 200 bool colorIgnored() const { return GrColor_ILLEGAL == fColor; } |
| 206 bool hasVertexColor() const { return SkToBool(fInColor); } | |
| 207 const SkMatrix& viewMatrix() const { return fViewMatrix; } | 201 const SkMatrix& viewMatrix() const { return fViewMatrix; } |
| 208 uint32_t getFlags() const { return fFlags; } | 202 uint32_t getFlags() const { return fFlags; } |
| 209 bool usesLocalCoords() const { return fUsesLocalCoords; } | 203 bool usesLocalCoords() const { return fUsesLocalCoords; } |
| 210 | 204 |
| 211 void getGLSLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) c
onst override; | 205 void getGLSLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) c
onst override; |
| 212 | 206 |
| 213 GrGLSLPrimitiveProcessor* createGLSLInstance(const GrGLSLCaps&) const overri
de; | 207 GrGLSLPrimitiveProcessor* createGLSLInstance(const GrGLSLCaps&) const overri
de; |
| 214 | 208 |
| 215 private: | 209 private: |
| 216 GrDistanceFieldLCDTextGeoProc(GrColor, const SkMatrix& viewMatrix, | 210 GrDistanceFieldLCDTextGeoProc(GrColor, const SkMatrix& viewMatrix, |
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| 227 const Attribute* fInColor; | 221 const Attribute* fInColor; |
| 228 const Attribute* fInTextureCoords; | 222 const Attribute* fInTextureCoords; |
| 229 bool fUsesLocalCoords; | 223 bool fUsesLocalCoords; |
| 230 | 224 |
| 231 GR_DECLARE_GEOMETRY_PROCESSOR_TEST; | 225 GR_DECLARE_GEOMETRY_PROCESSOR_TEST; |
| 232 | 226 |
| 233 typedef GrGeometryProcessor INHERITED; | 227 typedef GrGeometryProcessor INHERITED; |
| 234 }; | 228 }; |
| 235 | 229 |
| 236 #endif | 230 #endif |
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