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| 1 /* | 1 /* |
| 2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 #include "GrBicubicEffect.h" | 8 #include "GrBicubicEffect.h" |
| 9 #include "GrInvariantOutput.h" | 9 #include "GrInvariantOutput.h" |
| 10 #include "glsl/GrGLSLFragmentShaderBuilder.h" | 10 #include "glsl/GrGLSLFragmentShaderBuilder.h" |
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| 172 fDomain == s.fDomain; | 172 fDomain == s.fDomain; |
| 173 } | 173 } |
| 174 | 174 |
| 175 void GrBicubicEffect::onComputeInvariantOutput(GrInvariantOutput* inout) const { | 175 void GrBicubicEffect::onComputeInvariantOutput(GrInvariantOutput* inout) const { |
| 176 // FIXME: Perhaps we can do better. | 176 // FIXME: Perhaps we can do better. |
| 177 inout->mulByUnknownSingleComponent(); | 177 inout->mulByUnknownSingleComponent(); |
| 178 } | 178 } |
| 179 | 179 |
| 180 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrBicubicEffect); | 180 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrBicubicEffect); |
| 181 | 181 |
| 182 const GrFragmentProcessor* GrBicubicEffect::TestCreate(GrProcessorTestData* d) { | 182 sk_sp<GrFragmentProcessor> GrBicubicEffect::TestCreate(GrProcessorTestData* d) { |
| 183 int texIdx = d->fRandom->nextBool() ? GrProcessorUnitTest::kSkiaPMTextureIdx
: | 183 int texIdx = d->fRandom->nextBool() ? GrProcessorUnitTest::kSkiaPMTextureIdx
: |
| 184 GrProcessorUnitTest::kAlphaTextureIdx; | 184 GrProcessorUnitTest::kAlphaTextureIdx; |
| 185 SkScalar coefficients[16]; | 185 SkScalar coefficients[16]; |
| 186 for (int i = 0; i < 16; i++) { | 186 for (int i = 0; i < 16; i++) { |
| 187 coefficients[i] = d->fRandom->nextSScalar1(); | 187 coefficients[i] = d->fRandom->nextSScalar1(); |
| 188 } | 188 } |
| 189 return GrBicubicEffect::Create(d->fTextures[texIdx], coefficients); | 189 return GrBicubicEffect::Make(d->fTextures[texIdx], coefficients); |
| 190 } | 190 } |
| 191 | 191 |
| 192 ////////////////////////////////////////////////////////////////////////////// | 192 ////////////////////////////////////////////////////////////////////////////// |
| 193 | 193 |
| 194 bool GrBicubicEffect::ShouldUseBicubic(const SkMatrix& matrix, | 194 bool GrBicubicEffect::ShouldUseBicubic(const SkMatrix& matrix, |
| 195 GrTextureParams::FilterMode* filterMode)
{ | 195 GrTextureParams::FilterMode* filterMode)
{ |
| 196 if (matrix.isIdentity()) { | 196 if (matrix.isIdentity()) { |
| 197 *filterMode = GrTextureParams::kNone_FilterMode; | 197 *filterMode = GrTextureParams::kNone_FilterMode; |
| 198 return false; | 198 return false; |
| 199 } | 199 } |
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| 214 // Use bilerp to handle rotation or fractional translation. | 214 // Use bilerp to handle rotation or fractional translation. |
| 215 *filterMode = GrTextureParams::kBilerp_FilterMode; | 215 *filterMode = GrTextureParams::kBilerp_FilterMode; |
| 216 } | 216 } |
| 217 return false; | 217 return false; |
| 218 } | 218 } |
| 219 // When we use the bicubic filtering effect each sample is read from the tex
ture using | 219 // When we use the bicubic filtering effect each sample is read from the tex
ture using |
| 220 // nearest neighbor sampling. | 220 // nearest neighbor sampling. |
| 221 *filterMode = GrTextureParams::kNone_FilterMode; | 221 *filterMode = GrTextureParams::kNone_FilterMode; |
| 222 return true; | 222 return true; |
| 223 } | 223 } |
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