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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 |
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42 * The output color of this effect is a modulation of the input color and a samp
le from a | 42 * The output color of this effect is a modulation of the input color and a samp
le from a |
43 * distance field texture (using a smoothed step function near 0.5). | 43 * distance field texture (using a smoothed step function near 0.5). |
44 * It allows explicit specification of the filtering and wrap modes (GrTexturePa
rams). The input | 44 * It allows explicit specification of the filtering and wrap modes (GrTexturePa
rams). The input |
45 * coords are a custom attribute. Gamma correction is handled via a texture LUT. | 45 * coords are a custom attribute. Gamma correction is handled via a texture LUT. |
46 */ | 46 */ |
47 class GrDistanceFieldA8TextGeoProc : public GrGeometryProcessor { | 47 class GrDistanceFieldA8TextGeoProc : public GrGeometryProcessor { |
48 public: | 48 public: |
49 #ifdef SK_GAMMA_APPLY_TO_A8 | 49 #ifdef SK_GAMMA_APPLY_TO_A8 |
50 static GrGeometryProcessor* Create(GrColor color, const SkMatrix& viewMatrix
, | 50 static GrGeometryProcessor* Create(GrColor color, const SkMatrix& viewMatrix
, |
51 GrTexture* tex, const GrTextureParams& pa
rams, | 51 GrTexture* tex, const GrTextureParams& pa
rams, |
52 float lum, uint32_t flags, bool usesLocal
Coords) { | 52 float lum, uint32_t flags, bool usesLocal
Coords, GrRenderTarget* dst) { |
53 return new GrDistanceFieldA8TextGeoProc(color, viewMatrix, tex, params,
lum, flags, | 53 return new GrDistanceFieldA8TextGeoProc(color, viewMatrix, tex, params,
lum, flags, |
54 usesLocalCoords); | 54 usesLocalCoords, dst); |
55 } | 55 } |
56 #else | 56 #else |
57 static GrGeometryProcessor* Create(GrColor color, const SkMatrix& viewMatrix
, | 57 static GrGeometryProcessor* Create(GrColor color, const SkMatrix& viewMatrix
, |
58 GrTexture* tex, const GrTextureParams& pa
rams, | 58 GrTexture* tex, const GrTextureParams& pa
rams, |
59 uint32_t flags, bool usesLocalCoords) { | 59 uint32_t flags, bool usesLocalCoords) { |
60 return new GrDistanceFieldA8TextGeoProc(color, viewMatrix, tex, params,
flags, | 60 return new GrDistanceFieldA8TextGeoProc(color, viewMatrix, tex, params,
flags, |
61 usesLocalCoords); | 61 usesLocalCoords); |
62 } | 62 } |
63 #endif | 63 #endif |
64 | 64 |
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82 void getGLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) con
st override; | 82 void getGLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) con
st override; |
83 | 83 |
84 GrGLPrimitiveProcessor* createGLInstance(const GrGLSLCaps&) const override; | 84 GrGLPrimitiveProcessor* createGLInstance(const GrGLSLCaps&) const override; |
85 | 85 |
86 private: | 86 private: |
87 GrDistanceFieldA8TextGeoProc(GrColor, const SkMatrix& viewMatrix, | 87 GrDistanceFieldA8TextGeoProc(GrColor, const SkMatrix& viewMatrix, |
88 GrTexture* texture, const GrTextureParams& para
ms, | 88 GrTexture* texture, const GrTextureParams& para
ms, |
89 #ifdef SK_GAMMA_APPLY_TO_A8 | 89 #ifdef SK_GAMMA_APPLY_TO_A8 |
90 float distanceAdjust, | 90 float distanceAdjust, |
91 #endif | 91 #endif |
92 uint32_t flags, bool usesLocalCoords); | 92 uint32_t flags, bool usesLocalCoords, GrRenderT
arget* dst); |
93 | 93 |
94 GrColor fColor; | 94 GrColor fColor; |
95 SkMatrix fViewMatrix; | 95 SkMatrix fViewMatrix; |
96 GrTextureAccess fTextureAccess; | 96 GrTextureAccess fTextureAccess; |
97 #ifdef SK_GAMMA_APPLY_TO_A8 | 97 #ifdef SK_GAMMA_APPLY_TO_A8 |
98 float fDistanceAdjust; | 98 float fDistanceAdjust; |
99 #endif | 99 #endif |
100 uint32_t fFlags; | 100 uint32_t fFlags; |
101 const Attribute* fInPosition; | 101 const Attribute* fInPosition; |
102 const Attribute* fInColor; | 102 const Attribute* fInColor; |
103 const Attribute* fInTextureCoords; | 103 const Attribute* fInTextureCoords; |
104 bool fUsesLocalCoords; | 104 bool fUsesLocalCoords; |
105 | 105 |
106 GR_DECLARE_GEOMETRY_PROCESSOR_TEST; | 106 GR_DECLARE_GEOMETRY_PROCESSOR_TEST; |
107 | 107 |
108 typedef GrGeometryProcessor INHERITED; | 108 typedef GrGeometryProcessor INHERITED; |
109 }; | 109 }; |
110 | 110 |
111 | 111 |
112 /** | 112 /** |
113 * The output color of this effect is a modulation of the input color and a sampl
e from a | 113 * The output color of this effect is a modulation of the input color and a sampl
e from a |
114 * distance field texture (using a smoothed step function near 0.5). | 114 * distance field texture (using a smoothed step function near 0.5). |
115 * It allows explicit specification of the filtering and wrap modes (GrTexturePar
ams). The input | 115 * It allows explicit specification of the filtering and wrap modes (GrTexturePar
ams). The input |
116 * coords are a custom attribute. No gamma correct blending is applied. Used for
paths only. | 116 * coords are a custom attribute. No gamma correct blending is applied. Used for
paths only. |
117 */ | 117 */ |
118 class GrDistanceFieldPathGeoProc : public GrGeometryProcessor { | 118 class GrDistanceFieldPathGeoProc : public GrGeometryProcessor { |
119 public: | 119 public: |
120 static GrGeometryProcessor* Create(GrColor color, const SkMatrix& viewMatrix
, GrTexture* tex, | 120 static GrGeometryProcessor* Create(GrColor color, const SkMatrix& viewMatrix
, GrTexture* tex, |
121 const GrTextureParams& params, | 121 const GrTextureParams& params, |
122 uint32_t flags, bool usesLocalCoords) { | 122 uint32_t flags, bool usesLocalCoords, GrR
enderTarget* dst) { |
123 return new GrDistanceFieldPathGeoProc(color, viewMatrix, tex, params, fl
ags, | 123 return new GrDistanceFieldPathGeoProc(color, viewMatrix, tex, params, fl
ags, |
124 usesLocalCoords); | 124 usesLocalCoords, dst); |
125 } | 125 } |
126 | 126 |
127 virtual ~GrDistanceFieldPathGeoProc() {} | 127 virtual ~GrDistanceFieldPathGeoProc() {} |
128 | 128 |
129 const char* name() const override { return "DistanceFieldTexture"; } | 129 const char* name() const override { return "DistanceFieldTexture"; } |
130 | 130 |
131 const Attribute* inPosition() const { return fInPosition; } | 131 const Attribute* inPosition() const { return fInPosition; } |
132 const Attribute* inColor() const { return fInColor; } | 132 const Attribute* inColor() const { return fInColor; } |
133 const Attribute* inTextureCoords() const { return fInTextureCoords; } | 133 const Attribute* inTextureCoords() const { return fInTextureCoords; } |
134 GrColor color() const { return fColor; } | 134 GrColor color() const { return fColor; } |
135 bool colorIgnored() const { return GrColor_ILLEGAL == fColor; } | 135 bool colorIgnored() const { return GrColor_ILLEGAL == fColor; } |
136 bool hasVertexColor() const { return SkToBool(fInColor); } | 136 bool hasVertexColor() const { return SkToBool(fInColor); } |
137 const SkMatrix& viewMatrix() const { return fViewMatrix; } | 137 const SkMatrix& viewMatrix() const { return fViewMatrix; } |
138 uint32_t getFlags() const { return fFlags; } | 138 uint32_t getFlags() const { return fFlags; } |
139 bool usesLocalCoords() const { return fUsesLocalCoords; } | 139 bool usesLocalCoords() const { return fUsesLocalCoords; } |
140 | 140 |
141 void getGLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) con
st override; | 141 void getGLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) con
st override; |
142 | 142 |
143 GrGLPrimitiveProcessor* createGLInstance(const GrGLSLCaps&) const override; | 143 GrGLPrimitiveProcessor* createGLInstance(const GrGLSLCaps&) const override; |
144 | 144 |
145 private: | 145 private: |
146 GrDistanceFieldPathGeoProc(GrColor, const SkMatrix& viewMatrix, GrTexture* t
exture, | 146 GrDistanceFieldPathGeoProc(GrColor, const SkMatrix& viewMatrix, GrTexture* t
exture, |
147 const GrTextureParams& params, uint32_t flags, | 147 const GrTextureParams& params, uint32_t flags, |
148 bool usesLocalCoords); | 148 bool usesLocalCoords, GrRenderTarget* dst); |
149 | 149 |
150 GrColor fColor; | 150 GrColor fColor; |
151 SkMatrix fViewMatrix; | 151 SkMatrix fViewMatrix; |
152 GrTextureAccess fTextureAccess; | 152 GrTextureAccess fTextureAccess; |
153 uint32_t fFlags; | 153 uint32_t fFlags; |
154 const Attribute* fInPosition; | 154 const Attribute* fInPosition; |
155 const Attribute* fInColor; | 155 const Attribute* fInColor; |
156 const Attribute* fInTextureCoords; | 156 const Attribute* fInTextureCoords; |
157 bool fUsesLocalCoords; | 157 bool fUsesLocalCoords; |
158 | 158 |
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180 return (fR == wa.fR && fG == wa.fG && fB == wa.fB); | 180 return (fR == wa.fR && fG == wa.fG && fB == wa.fB); |
181 } | 181 } |
182 bool operator!=(const DistanceAdjust& wa) const { | 182 bool operator!=(const DistanceAdjust& wa) const { |
183 return !(*this == wa); | 183 return !(*this == wa); |
184 } | 184 } |
185 }; | 185 }; |
186 | 186 |
187 static GrGeometryProcessor* Create(GrColor color, const SkMatrix& viewMatrix
, | 187 static GrGeometryProcessor* Create(GrColor color, const SkMatrix& viewMatrix
, |
188 GrTexture* tex, const GrTextureParams& pa
rams, | 188 GrTexture* tex, const GrTextureParams& pa
rams, |
189 DistanceAdjust distanceAdjust, uint32_t f
lags, | 189 DistanceAdjust distanceAdjust, uint32_t f
lags, |
190 bool usesLocalCoords) { | 190 bool usesLocalCoords, GrRenderTarget* dst
) { |
191 return new GrDistanceFieldLCDTextGeoProc(color, viewMatrix, tex, params,
distanceAdjust, | 191 return new GrDistanceFieldLCDTextGeoProc(color, viewMatrix, tex, params,
distanceAdjust, |
192 flags, usesLocalCoords); | 192 flags, usesLocalCoords, dst); |
193 } | 193 } |
194 | 194 |
195 virtual ~GrDistanceFieldLCDTextGeoProc() {} | 195 virtual ~GrDistanceFieldLCDTextGeoProc() {} |
196 | 196 |
197 const char* name() const override { return "DistanceFieldLCDTexture"; } | 197 const char* name() const override { return "DistanceFieldLCDTexture"; } |
198 | 198 |
199 const Attribute* inPosition() const { return fInPosition; } | 199 const Attribute* inPosition() const { return fInPosition; } |
200 const Attribute* inTextureCoords() const { return fInTextureCoords; } | 200 const Attribute* inTextureCoords() const { return fInTextureCoords; } |
201 DistanceAdjust getDistanceAdjust() const { return fDistanceAdjust; } | 201 DistanceAdjust getDistanceAdjust() const { return fDistanceAdjust; } |
202 GrColor color() const { return fColor; } | 202 GrColor color() const { return fColor; } |
203 bool colorIgnored() const { return GrColor_ILLEGAL == fColor; } | 203 bool colorIgnored() const { return GrColor_ILLEGAL == fColor; } |
204 const SkMatrix& viewMatrix() const { return fViewMatrix; } | 204 const SkMatrix& viewMatrix() const { return fViewMatrix; } |
205 uint32_t getFlags() const { return fFlags; } | 205 uint32_t getFlags() const { return fFlags; } |
206 bool usesLocalCoords() const { return fUsesLocalCoords; } | 206 bool usesLocalCoords() const { return fUsesLocalCoords; } |
207 | 207 |
208 void getGLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) con
st override; | 208 void getGLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) con
st override; |
209 | 209 |
210 GrGLPrimitiveProcessor* createGLInstance(const GrGLSLCaps&) const override; | 210 GrGLPrimitiveProcessor* createGLInstance(const GrGLSLCaps&) const override; |
211 | 211 |
212 private: | 212 private: |
213 GrDistanceFieldLCDTextGeoProc(GrColor, const SkMatrix& viewMatrix, | 213 GrDistanceFieldLCDTextGeoProc(GrColor, const SkMatrix& viewMatrix, |
214 GrTexture* texture, const GrTextureParams& par
ams, | 214 GrTexture* texture, const GrTextureParams& par
ams, |
215 DistanceAdjust wa, uint32_t flags, | 215 DistanceAdjust wa, uint32_t flags, |
216 bool usesLocalCoords); | 216 bool usesLocalCoords, GrRenderTarget* dst); |
217 | 217 |
218 GrColor fColor; | 218 GrColor fColor; |
219 SkMatrix fViewMatrix; | 219 SkMatrix fViewMatrix; |
220 GrTextureAccess fTextureAccess; | 220 GrTextureAccess fTextureAccess; |
221 DistanceAdjust fDistanceAdjust; | 221 DistanceAdjust fDistanceAdjust; |
222 uint32_t fFlags; | 222 uint32_t fFlags; |
223 const Attribute* fInPosition; | 223 const Attribute* fInPosition; |
224 const Attribute* fInTextureCoords; | 224 const Attribute* fInTextureCoords; |
225 bool fUsesLocalCoords; | 225 bool fUsesLocalCoords; |
226 | 226 |
227 GR_DECLARE_GEOMETRY_PROCESSOR_TEST; | 227 GR_DECLARE_GEOMETRY_PROCESSOR_TEST; |
228 | 228 |
229 typedef GrGeometryProcessor INHERITED; | 229 typedef GrGeometryProcessor INHERITED; |
230 }; | 230 }; |
231 | 231 |
232 #endif | 232 #endif |
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