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Side by Side Diff: src/effects/SkAlphaThresholdFilter.cpp

Issue 759653004: Update invariant output computation for various texture effects. (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 6 years ago
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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 #include "SkAlphaThresholdFilter.h" 8 #include "SkAlphaThresholdFilter.h"
9 #include "SkBitmap.h" 9 #include "SkBitmap.h"
10 #include "SkReadBuffer.h" 10 #include "SkReadBuffer.h"
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222 return GrTBackendFragmentProcessorFactory<AlphaThresholdEffect>::getInstance (); 222 return GrTBackendFragmentProcessorFactory<AlphaThresholdEffect>::getInstance ();
223 } 223 }
224 224
225 bool AlphaThresholdEffect::onIsEqual(const GrFragmentProcessor& sBase) const { 225 bool AlphaThresholdEffect::onIsEqual(const GrFragmentProcessor& sBase) const {
226 const AlphaThresholdEffect& s = sBase.cast<AlphaThresholdEffect>(); 226 const AlphaThresholdEffect& s = sBase.cast<AlphaThresholdEffect>();
227 return (this->fInnerThreshold == s.fInnerThreshold && 227 return (this->fInnerThreshold == s.fInnerThreshold &&
228 this->fOuterThreshold == s.fOuterThreshold); 228 this->fOuterThreshold == s.fOuterThreshold);
229 } 229 }
230 230
231 void AlphaThresholdEffect::onComputeInvariantOutput(GrInvariantOutput* inout) co nst { 231 void AlphaThresholdEffect::onComputeInvariantOutput(GrInvariantOutput* inout) co nst {
232 if (GrPixelConfigIsOpaque(this->texture(0)->config()) && fOuterThreshold >= 1.f) { 232 if (GrPixelConfigIsAlphaOnly(this->texture(0)->config())) {
233 inout->mulByUnknownAlpha();
234 } else if (GrPixelConfigIsOpaque(this->texture(0)->config()) && fOuterThresh old >= 1.f) {
233 inout->mulByUnknownOpaqueColor(); 235 inout->mulByUnknownOpaqueColor();
234 } else { 236 } else {
235 inout->mulByUnknownColor(); 237 inout->mulByUnknownColor();
236 } 238 }
237 } 239 }
238 240
239 #endif 241 #endif
240 242
241 #ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING 243 #ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
242 SkAlphaThresholdFilterImpl::SkAlphaThresholdFilterImpl(SkReadBuffer& buffer) 244 SkAlphaThresholdFilterImpl::SkAlphaThresholdFilterImpl(SkReadBuffer& buffer)
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378 (U8CPU)(SkColorGetG(source) * scale), 380 (U8CPU)(SkColorGetG(source) * scale),
379 (U8CPU)(SkColorGetB(source) * scale)); 381 (U8CPU)(SkColorGetB(source) * scale));
380 } 382 }
381 } 383 }
382 dptr[y * dst->width() + x] = output_color; 384 dptr[y * dst->width() + x] = output_color;
383 } 385 }
384 } 386 }
385 387
386 return true; 388 return true;
387 } 389 }
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