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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 "GrOptDrawState.h" | 8 #include "GrOptDrawState.h" |
9 | 9 |
10 #include "GrDrawState.h" | 10 #include "GrDrawState.h" |
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37 GrXferProcessor::OptFlags optFlags; | 37 GrXferProcessor::OptFlags optFlags; |
38 if (xferProcessor) { | 38 if (xferProcessor) { |
39 fXferProcessor.reset(xferProcessor.get()); | 39 fXferProcessor.reset(xferProcessor.get()); |
40 | 40 |
41 optFlags = xferProcessor->getOptimizations(colorPOI, | 41 optFlags = xferProcessor->getOptimizations(colorPOI, |
42 coveragePOI, | 42 coveragePOI, |
43 drawState.isCoverageDrawing()
, | 43 drawState.isCoverageDrawing()
, |
44 drawState.isColorWriteDisable
d(), | 44 drawState.isColorWriteDisable
d(), |
45 drawState.getStencil().doesWr
ite(), | 45 drawState.getStencil().doesWr
ite(), |
46 &fColor, | 46 &fColor, |
47 &fCoverage); | 47 &fCoverage, |
| 48 caps); |
48 } | 49 } |
49 | 50 |
50 // When path rendering the stencil settings are not always set on the draw s
tate | 51 // When path rendering the stencil settings are not always set on the draw s
tate |
51 // so we must check the draw type. In cases where we will skip drawing we si
mply return a | 52 // so we must check the draw type. In cases where we will skip drawing we si
mply return a |
52 // null GrOptDrawState. | 53 // null GrOptDrawState. |
53 if (!xferProcessor || ((GrXferProcessor::kSkipDraw_OptFlag & optFlags) && | 54 if (!xferProcessor || ((GrXferProcessor::kSkipDraw_OptFlag & optFlags) && |
54 GrGpu::kStencilPath_DrawType != drawType)) { | 55 GrGpu::kStencilPath_DrawType != drawType)) { |
55 // Set the fields that don't default init and return. The lack of a rend
er target will | 56 // Set the fields that don't default init and return. The lack of a rend
er target will |
56 // indicate that this can be skipped. | 57 // indicate that this can be skipped. |
57 fFlags = 0; | 58 fFlags = 0; |
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139 | 140 |
140 // let the GP init the batch tracker | 141 // let the GP init the batch tracker |
141 if (drawState.hasGeometryProcessor()) { | 142 if (drawState.hasGeometryProcessor()) { |
142 GrGeometryProcessor::InitBT init; | 143 GrGeometryProcessor::InitBT init; |
143 init.fOutputColor = fDescInfo.fInputColorIsUsed; | 144 init.fOutputColor = fDescInfo.fInputColorIsUsed; |
144 init.fOutputCoverage = fDescInfo.fInputCoverageIsUsed; | 145 init.fOutputCoverage = fDescInfo.fInputCoverageIsUsed; |
145 init.fColor = this->getColor(); | 146 init.fColor = this->getColor(); |
146 init.fCoverage = this->getCoverage(); | 147 init.fCoverage = this->getCoverage(); |
147 fGeometryProcessor->initBatchTracker(&fBatchTracker, init); | 148 fGeometryProcessor->initBatchTracker(&fBatchTracker, init); |
148 } | 149 } |
149 | |
150 this->setOutputStateInfo(drawState, coverageColor, optFlags, caps); | |
151 } | |
152 | |
153 void GrOptDrawState::setOutputStateInfo(const GrDrawState& ds, | |
154 GrColor coverage, | |
155 GrXferProcessor::OptFlags optFlags, | |
156 const GrDrawTargetCaps& caps) { | |
157 // Set this default and then possibly change our mind if there is coverage. | |
158 fDescInfo.fPrimaryOutputType = GrProgramDesc::kModulate_PrimaryOutputType; | |
159 fDescInfo.fSecondaryOutputType = GrProgramDesc::kNone_SecondaryOutputType; | |
160 | |
161 // Determine whether we should use dual source blending or shader code to ke
ep coverage | |
162 // separate from color. | |
163 bool keepCoverageSeparate = !(optFlags & GrXferProcessor::kSetCoverageDrawin
g_OptFlag); | |
164 if (keepCoverageSeparate && !ds.hasSolidCoverage(coverage)) { | |
165 if (caps.dualSourceBlendingSupport()) { | |
166 if (kZero_GrBlendCoeff == fDstBlend) { | |
167 // write the coverage value to second color | |
168 fDescInfo.fSecondaryOutputType = GrProgramDesc::kCoverage_Second
aryOutputType; | |
169 fDstBlend = (GrBlendCoeff)GrGpu::kIS2C_GrBlendCoeff; | |
170 } else if (kSA_GrBlendCoeff == fDstBlend) { | |
171 // SA dst coeff becomes 1-(1-SA)*coverage when dst is partially
covered. | |
172 fDescInfo.fSecondaryOutputType = GrProgramDesc::kCoverageISA_Sec
ondaryOutputType; | |
173 fDstBlend = (GrBlendCoeff)GrGpu::kIS2C_GrBlendCoeff; | |
174 } else if (kSC_GrBlendCoeff == fDstBlend) { | |
175 // SA dst coeff becomes 1-(1-SA)*coverage when dst is partially
covered. | |
176 fDescInfo.fSecondaryOutputType = GrProgramDesc::kCoverageISC_Sec
ondaryOutputType; | |
177 fDstBlend = (GrBlendCoeff)GrGpu::kIS2C_GrBlendCoeff; | |
178 } | |
179 } else if (fDescInfo.fReadsDst && | |
180 kOne_GrBlendCoeff == fSrcBlend && | |
181 kZero_GrBlendCoeff == fDstBlend) { | |
182 fDescInfo.fPrimaryOutputType = GrProgramDesc::kCombineWithDst_Primar
yOutputType; | |
183 } | |
184 } | |
185 } | 150 } |
186 | 151 |
187 void GrOptDrawState::adjustProgramFromOptimizations(const GrDrawState& ds, | 152 void GrOptDrawState::adjustProgramFromOptimizations(const GrDrawState& ds, |
188 GrXferProcessor::OptFlags fl
ags, | 153 GrXferProcessor::OptFlags fl
ags, |
189 const GrProcOptInfo& colorPO
I, | 154 const GrProcOptInfo& colorPO
I, |
190 const GrProcOptInfo& coverag
ePOI, | 155 const GrProcOptInfo& coverag
ePOI, |
191 int* firstColorStageIdx, | 156 int* firstColorStageIdx, |
192 int* firstCoverageStageIdx)
{ | 157 int* firstCoverageStageIdx)
{ |
193 fDescInfo.fReadsDst = false; | 158 fDescInfo.fReadsDst = false; |
194 fDescInfo.fReadsFragPosition = false; | 159 fDescInfo.fReadsFragPosition = false; |
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255 if (this->hasGeometryProcessor()) { | 220 if (this->hasGeometryProcessor()) { |
256 if (!that.hasGeometryProcessor()) { | 221 if (!that.hasGeometryProcessor()) { |
257 return false; | 222 return false; |
258 } else if (!this->getGeometryProcessor()->isEqual(*that.getGeometryProce
ssor())) { | 223 } else if (!this->getGeometryProcessor()->isEqual(*that.getGeometryProce
ssor())) { |
259 return false; | 224 return false; |
260 } | 225 } |
261 } else if (that.hasGeometryProcessor()) { | 226 } else if (that.hasGeometryProcessor()) { |
262 return false; | 227 return false; |
263 } | 228 } |
264 | 229 |
| 230 if (!this->getXferProcessor()->isEqual(*that.getXferProcessor())) { |
| 231 return false; |
| 232 } |
| 233 |
265 // The program desc comparison should have already assured that the stage co
unts match. | 234 // The program desc comparison should have already assured that the stage co
unts match. |
266 SkASSERT(this->numFragmentStages() == that.numFragmentStages()); | 235 SkASSERT(this->numFragmentStages() == that.numFragmentStages()); |
267 for (int i = 0; i < this->numFragmentStages(); i++) { | 236 for (int i = 0; i < this->numFragmentStages(); i++) { |
268 | 237 |
269 if (this->getFragmentStage(i) != that.getFragmentStage(i)) { | 238 if (this->getFragmentStage(i) != that.getFragmentStage(i)) { |
270 return false; | 239 return false; |
271 } | 240 } |
272 } | 241 } |
273 return true; | 242 return true; |
274 } | 243 } |
275 | 244 |
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