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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 #include "GrDrawState.h" | 8 #include "GrDrawState.h" |
9 | 9 |
10 #include "GrBlend.h" | 10 #include "GrBlend.h" |
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140 | 140 |
141 // The coverage isn't actually white, its unknown, but this will produce the
same effect | 141 // The coverage isn't actually white, its unknown, but this will produce the
same effect |
142 // TODO we want to cache the result of this call, but we can probably clean
up the interface | 142 // TODO we want to cache the result of this call, but we can probably clean
up the interface |
143 // so we don't have to pass in a seemingly known coverage | 143 // so we don't have to pass in a seemingly known coverage |
144 this->calcCoverageInvariantOutput(GrColor_WHITE); | 144 this->calcCoverageInvariantOutput(GrColor_WHITE); |
145 return fXPFactory->canApplyCoverage(fColorProcInfo, fCoverageProcInfo); | 145 return fXPFactory->canApplyCoverage(fColorProcInfo, fCoverageProcInfo); |
146 } | 146 } |
147 | 147 |
148 //////////////////////////////////////////////////////////////////////////////s | 148 //////////////////////////////////////////////////////////////////////////////s |
149 | 149 |
150 bool GrDrawState::willEffectReadDstColor(const GrPrimitiveProcessor* pp) const { | 150 bool GrDrawState::willEffectReadDstColor() const { |
151 this->calcColorInvariantOutput(pp); | 151 return fXPFactory->willReadDst(); |
152 this->calcCoverageInvariantOutput(pp); | |
153 | |
154 return fXPFactory->willReadDst(fColorProcInfo, fCoverageProcInfo); | |
155 } | 152 } |
156 | 153 |
157 void GrDrawState::AutoRestoreEffects::set(GrDrawState* ds) { | 154 void GrDrawState::AutoRestoreEffects::set(GrDrawState* ds) { |
158 if (fDrawState) { | 155 if (fDrawState) { |
159 int m = fDrawState->numColorStages() - fColorEffectCnt; | 156 int m = fDrawState->numColorStages() - fColorEffectCnt; |
160 SkASSERT(m >= 0); | 157 SkASSERT(m >= 0); |
161 fDrawState->fColorStages.pop_back_n(m); | 158 fDrawState->fColorStages.pop_back_n(m); |
162 | 159 |
163 int n = fDrawState->numCoverageStages() - fCoverageEffectCnt; | 160 int n = fDrawState->numCoverageStages() - fCoverageEffectCnt; |
164 SkASSERT(n >= 0); | 161 SkASSERT(n >= 0); |
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232 void GrDrawState::calcCoverageInvariantOutput(GrColor coverage) const { | 229 void GrDrawState::calcCoverageInvariantOutput(GrColor coverage) const { |
233 if (!fCoverageProcInfoValid || coverage != fCoverageCache) { | 230 if (!fCoverageProcInfoValid || coverage != fCoverageCache) { |
234 GrColorComponentFlags flags = kRGBA_GrColorComponentFlags; | 231 GrColorComponentFlags flags = kRGBA_GrColorComponentFlags; |
235 fCoverageProcInfo.calcWithInitialValues(fCoverageStages.begin(), | 232 fCoverageProcInfo.calcWithInitialValues(fCoverageStages.begin(), |
236 this->numCoverageStages(), cover
age, flags, | 233 this->numCoverageStages(), cover
age, flags, |
237 true); | 234 true); |
238 fCoverageProcInfoValid = true; | 235 fCoverageProcInfoValid = true; |
239 fCoverageCache = coverage; | 236 fCoverageCache = coverage; |
240 } | 237 } |
241 } | 238 } |
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