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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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28 | 28 |
29 kUniformScale_DistanceFieldEffectMask = kSimilarity_DistanceFieldEffectFlag
| | 29 kUniformScale_DistanceFieldEffectMask = kSimilarity_DistanceFieldEffectFlag
| |
30 kRectToRect_DistanceFieldEffectFlag, | 30 kRectToRect_DistanceFieldEffectFlag, |
31 // The subset of the flags relevant to GrDistanceFieldA8TextGeoProc | 31 // The subset of the flags relevant to GrDistanceFieldA8TextGeoProc |
32 kNonLCD_DistanceFieldEffectMask = kSimilarity_DistanceFieldEffectFlag
| | 32 kNonLCD_DistanceFieldEffectMask = kSimilarity_DistanceFieldEffectFlag
| |
33 kColorAttr_DistanceFieldEffectFlag, | 33 kColorAttr_DistanceFieldEffectFlag, |
34 // The subset of the flags relevant to GrDistanceFieldLCDTextGeoProc | 34 // The subset of the flags relevant to GrDistanceFieldLCDTextGeoProc |
35 kLCD_DistanceFieldEffectMask = kSimilarity_DistanceFieldEffectFlag
| | 35 kLCD_DistanceFieldEffectMask = kSimilarity_DistanceFieldEffectFlag
| |
36 kRectToRect_DistanceFieldEffectFlag
| | 36 kRectToRect_DistanceFieldEffectFlag
| |
37 kUseLCD_DistanceFieldEffectFlag | | 37 kUseLCD_DistanceFieldEffectFlag | |
38 kBGR_DistanceFieldEffectFlag | | 38 kBGR_DistanceFieldEffectFlag, |
39 kColorAttr_DistanceFieldEffectFlag, | |
40 }; | 39 }; |
41 | 40 |
42 /** | 41 /** |
43 * 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 |
44 * distance field texture (using a smoothed step function near 0.5). | 43 * 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 | 44 * 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. | 45 * coords are a custom attribute. Gamma correction is handled via a texture LUT. |
47 */ | 46 */ |
48 class GrDistanceFieldA8TextGeoProc : public GrGeometryProcessor { | 47 class GrDistanceFieldA8TextGeoProc : public GrGeometryProcessor { |
49 public: | 48 public: |
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191 bool usesLocalCoords) { | 190 bool usesLocalCoords) { |
192 return new GrDistanceFieldLCDTextGeoProc(color, viewMatrix, tex, params,
distanceAdjust, | 191 return new GrDistanceFieldLCDTextGeoProc(color, viewMatrix, tex, params,
distanceAdjust, |
193 flags, usesLocalCoords); | 192 flags, usesLocalCoords); |
194 } | 193 } |
195 | 194 |
196 virtual ~GrDistanceFieldLCDTextGeoProc() {} | 195 virtual ~GrDistanceFieldLCDTextGeoProc() {} |
197 | 196 |
198 const char* name() const override { return "DistanceFieldLCDTexture"; } | 197 const char* name() const override { return "DistanceFieldLCDTexture"; } |
199 | 198 |
200 const Attribute* inPosition() const { return fInPosition; } | 199 const Attribute* inPosition() const { return fInPosition; } |
201 const Attribute* inColor() const { return fInColor; } | |
202 const Attribute* inTextureCoords() const { return fInTextureCoords; } | 200 const Attribute* inTextureCoords() const { return fInTextureCoords; } |
203 DistanceAdjust getDistanceAdjust() const { return fDistanceAdjust; } | 201 DistanceAdjust getDistanceAdjust() const { return fDistanceAdjust; } |
204 GrColor color() const { return fColor; } | 202 GrColor color() const { return fColor; } |
205 bool colorIgnored() const { return GrColor_ILLEGAL == fColor; } | 203 bool colorIgnored() const { return GrColor_ILLEGAL == fColor; } |
206 bool hasVertexColor() const { return SkToBool(fInColor); } | |
207 const SkMatrix& viewMatrix() const { return fViewMatrix; } | 204 const SkMatrix& viewMatrix() const { return fViewMatrix; } |
208 uint32_t getFlags() const { return fFlags; } | 205 uint32_t getFlags() const { return fFlags; } |
209 bool usesLocalCoords() const { return fUsesLocalCoords; } | 206 bool usesLocalCoords() const { return fUsesLocalCoords; } |
210 | 207 |
211 void getGLSLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) c
onst override; | 208 void getGLSLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) c
onst override; |
212 | 209 |
213 GrGLSLPrimitiveProcessor* createGLSLInstance(const GrGLSLCaps&) const overri
de; | 210 GrGLSLPrimitiveProcessor* createGLSLInstance(const GrGLSLCaps&) const overri
de; |
214 | 211 |
215 private: | 212 private: |
216 GrDistanceFieldLCDTextGeoProc(GrColor, const SkMatrix& viewMatrix, | 213 GrDistanceFieldLCDTextGeoProc(GrColor, const SkMatrix& viewMatrix, |
217 GrTexture* texture, const GrTextureParams& par
ams, | 214 GrTexture* texture, const GrTextureParams& par
ams, |
218 DistanceAdjust wa, uint32_t flags, | 215 DistanceAdjust wa, uint32_t flags, |
219 bool usesLocalCoords); | 216 bool usesLocalCoords); |
220 | 217 |
221 GrColor fColor; | 218 GrColor fColor; |
222 SkMatrix fViewMatrix; | 219 SkMatrix fViewMatrix; |
223 GrTextureAccess fTextureAccess; | 220 GrTextureAccess fTextureAccess; |
224 DistanceAdjust fDistanceAdjust; | 221 DistanceAdjust fDistanceAdjust; |
225 uint32_t fFlags; | 222 uint32_t fFlags; |
226 const Attribute* fInPosition; | 223 const Attribute* fInPosition; |
227 const Attribute* fInColor; | |
228 const Attribute* fInTextureCoords; | 224 const Attribute* fInTextureCoords; |
229 bool fUsesLocalCoords; | 225 bool fUsesLocalCoords; |
230 | 226 |
231 GR_DECLARE_GEOMETRY_PROCESSOR_TEST; | 227 GR_DECLARE_GEOMETRY_PROCESSOR_TEST; |
232 | 228 |
233 typedef GrGeometryProcessor INHERITED; | 229 typedef GrGeometryProcessor INHERITED; |
234 }; | 230 }; |
235 | 231 |
236 #endif | 232 #endif |
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