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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 GrTextureDomainEffect_DEFINED | 8 #ifndef GrTextureDomainEffect_DEFINED |
9 #define GrTextureDomainEffect_DEFINED | 9 #define GrTextureDomainEffect_DEFINED |
10 | 10 |
11 #include "GrSingleTextureEffect.h" | 11 #include "GrSingleTextureEffect.h" |
12 #include "gl/GrGLProcessor.h" | 12 #include "gl/GrGLProcessor.h" |
13 | 13 |
14 class GrGLProgramBuilder; | 14 class GrGLProgramBuilder; |
15 class GrGLShaderBuilder; | 15 class GrGLShaderBuilder; |
| 16 class GrInvariantOutput; |
16 struct SkRect; | 17 struct SkRect; |
17 | 18 |
18 /** | 19 /** |
19 * Limits a texture's lookup coordinates to a domain. Samples outside the domain
are either clamped | 20 * Limits a texture's lookup coordinates to a domain. Samples outside the domain
are either clamped |
20 * the edge of the domain or result in a vec4 of zeros (decal mode). The domain
is clipped to | 21 * the edge of the domain or result in a vec4 of zeros (decal mode). The domain
is clipped to |
21 * normalized texture coords ([0,1]x[0,1] square). Bilinear filtering can cause
texels outside the | 22 * normalized texture coords ([0,1]x[0,1] square). Bilinear filtering can cause
texels outside the |
22 * domain to affect the read value unless the caller considers this when calcula
ting the domain. | 23 * domain to affect the read value unless the caller considers this when calcula
ting the domain. |
23 */ | 24 */ |
24 class GrTextureDomain { | 25 class GrTextureDomain { |
25 public: | 26 public: |
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168 private: | 169 private: |
169 GrTextureDomainEffect(GrTexture*, | 170 GrTextureDomainEffect(GrTexture*, |
170 const SkMatrix&, | 171 const SkMatrix&, |
171 const SkRect& domain, | 172 const SkRect& domain, |
172 GrTextureDomain::Mode, | 173 GrTextureDomain::Mode, |
173 GrTextureParams::FilterMode, | 174 GrTextureParams::FilterMode, |
174 GrCoordSet); | 175 GrCoordSet); |
175 | 176 |
176 virtual bool onIsEqual(const GrFragmentProcessor&) const SK_OVERRIDE; | 177 virtual bool onIsEqual(const GrFragmentProcessor&) const SK_OVERRIDE; |
177 | 178 |
178 virtual void onComputeInvariantOutput(InvariantOutput* inout) const SK_OVERR
IDE; | 179 virtual void onComputeInvariantOutput(GrInvariantOutput* inout) const SK_OVE
RRIDE; |
179 | 180 |
180 GR_DECLARE_FRAGMENT_PROCESSOR_TEST; | 181 GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
181 | 182 |
182 typedef GrSingleTextureEffect INHERITED; | 183 typedef GrSingleTextureEffect INHERITED; |
183 }; | 184 }; |
184 | 185 |
185 #endif | 186 #endif |
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