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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" |
| (...skipping 21 matching lines...) Expand all Loading... |
| 32 | 32 |
| 33 memcpy(fFixedFunctionVertexAttribIndices, | 33 memcpy(fFixedFunctionVertexAttribIndices, |
| 34 drawState.getFixedFunctionVertexAttribIndices(), | 34 drawState.getFixedFunctionVertexAttribIndices(), |
| 35 sizeof(fFixedFunctionVertexAttribIndices)); | 35 sizeof(fFixedFunctionVertexAttribIndices)); |
| 36 | 36 |
| 37 | 37 |
| 38 fInputColorIsUsed = true; | 38 fInputColorIsUsed = true; |
| 39 fInputCoverageIsUsed = true; | 39 fInputCoverageIsUsed = true; |
| 40 | 40 |
| 41 if (drawState.hasGeometryProcessor()) { | 41 if (drawState.hasGeometryProcessor()) { |
| 42 fGeometryProcessor.reset(SkNEW_ARGS(GrEffectStage, (*drawState.getGeomet
ryProcessor()))); | 42 fGeometryProcessor.reset(SkNEW_ARGS(GrGeometryStage, (*drawState.getGeom
etryProcessor()))); |
| 43 } else { | 43 } else { |
| 44 fGeometryProcessor.reset(NULL); | 44 fGeometryProcessor.reset(NULL); |
| 45 } | 45 } |
| 46 | 46 |
| 47 this->copyEffectiveColorStages(drawState); | 47 this->copyEffectiveColorStages(drawState); |
| 48 this->copyEffectiveCoverageStages(drawState); | 48 this->copyEffectiveCoverageStages(drawState); |
| 49 this->adjustFromBlendOpts(); | 49 this->adjustFromBlendOpts(); |
| 50 this->getStageStats(); | 50 this->getStageStats(); |
| 51 this->setOutputStateInfo(caps); | 51 this->setOutputStateInfo(caps); |
| 52 }; | 52 }; |
| (...skipping 124 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 177 if (ds.vertexColorsAreOpaque()) { | 177 if (ds.vertexColorsAreOpaque()) { |
| 178 color = 0xFF << GrColor_SHIFT_A; | 178 color = 0xFF << GrColor_SHIFT_A; |
| 179 validComponentFlags = kA_GrColorComponentFlag; | 179 validComponentFlags = kA_GrColorComponentFlag; |
| 180 } else { | 180 } else { |
| 181 validComponentFlags = 0; | 181 validComponentFlags = 0; |
| 182 color = 0; // not strictly necessary but we get false alarms from to
ols about uninit. | 182 color = 0; // not strictly necessary but we get false alarms from to
ols about uninit. |
| 183 } | 183 } |
| 184 } | 184 } |
| 185 | 185 |
| 186 for (int i = 0; i < ds.numColorStages(); ++i) { | 186 for (int i = 0; i < ds.numColorStages(); ++i) { |
| 187 const GrEffect* effect = ds.getColorStage(i).getEffect(); | 187 const GrFragmentProcessor* fp = ds.getColorStage(i).getFragmentProcessor
(); |
| 188 if (!effect->willUseInputColor()) { | 188 if (!fp->willUseInputColor()) { |
| 189 firstColorStage = i; | 189 firstColorStage = i; |
| 190 fInputColorIsUsed = false; | 190 fInputColorIsUsed = false; |
| 191 } | 191 } |
| 192 effect->getConstantColorComponents(&color, &validComponentFlags); | 192 fp->getConstantColorComponents(&color, &validComponentFlags); |
| 193 if (kRGBA_GrColorComponentFlags == validComponentFlags) { | 193 if (kRGBA_GrColorComponentFlags == validComponentFlags) { |
| 194 firstColorStage = i + 1; | 194 firstColorStage = i + 1; |
| 195 fColor = color; | 195 fColor = color; |
| 196 fInputColorIsUsed = true; | 196 fInputColorIsUsed = true; |
| 197 this->removeFixedFunctionVertexAttribs(0x1 << kColor_GrVertexAttribB
inding); | 197 this->removeFixedFunctionVertexAttribs(0x1 << kColor_GrVertexAttribB
inding); |
| 198 } | 198 } |
| 199 } | 199 } |
| 200 if (firstColorStage < ds.numColorStages()) { | 200 if (firstColorStage < ds.numColorStages()) { |
| 201 fColorStages.reset(&ds.getColorStage(firstColorStage), | 201 fColorStages.reset(&ds.getColorStage(firstColorStage), |
| 202 ds.numColorStages() - firstColorStage); | 202 ds.numColorStages() - firstColorStage); |
| 203 } else { | 203 } else { |
| 204 fColorStages.reset(); | 204 fColorStages.reset(); |
| 205 } | 205 } |
| 206 } | 206 } |
| 207 | 207 |
| 208 void GrOptDrawState::copyEffectiveCoverageStages(const GrDrawState& ds) { | 208 void GrOptDrawState::copyEffectiveCoverageStages(const GrDrawState& ds) { |
| 209 int firstCoverageStage = 0; | 209 int firstCoverageStage = 0; |
| 210 | 210 |
| 211 // We do not try to optimize out constantColor coverage effects here. It is
extremely rare | 211 // We do not try to optimize out constantColor coverage effects here. It is
extremely rare |
| 212 // to have a coverage effect that returns a constant value for all four chan
nels. Thus we | 212 // to have a coverage effect that returns a constant value for all four chan
nels. Thus we |
| 213 // save having to make extra virtual calls by not checking for it. | 213 // save having to make extra virtual calls by not checking for it. |
| 214 | 214 |
| 215 // Don't do any optimizations on coverage stages. It should not be the case
where we do not use | 215 // Don't do any optimizations on coverage stages. It should not be the case
where we do not use |
| 216 // input coverage in an effect | 216 // input coverage in an effect |
| 217 #ifdef OptCoverageStages | 217 #ifdef OptCoverageStages |
| 218 for (int i = 0; i < ds.numCoverageStages(); ++i) { | 218 for (int i = 0; i < ds.numCoverageStages(); ++i) { |
| 219 const GrEffect* effect = ds.getCoverageStage(i).getEffect(); | 219 const GrProcessor* processor = ds.getCoverageStage(i).getProcessor(); |
| 220 if (!effect->willUseInputColor()) { | 220 if (!processor->willUseInputColor()) { |
| 221 firstCoverageStage = i; | 221 firstCoverageStage = i; |
| 222 fInputCoverageIsUsed = false; | 222 fInputCoverageIsUsed = false; |
| 223 } | 223 } |
| 224 } | 224 } |
| 225 #endif | 225 #endif |
| 226 if (ds.numCoverageStages() > 0) { | 226 if (ds.numCoverageStages() > 0) { |
| 227 fCoverageStages.reset(&ds.getCoverageStage(firstCoverageStage), | 227 fCoverageStages.reset(&ds.getCoverageStage(firstCoverageStage), |
| 228 ds.numCoverageStages() - firstCoverageStage); | 228 ds.numCoverageStages() - firstCoverageStage); |
| 229 } else { | 229 } else { |
| 230 fCoverageStages.reset(); | 230 fCoverageStages.reset(); |
| 231 } | 231 } |
| 232 } | 232 } |
| 233 | 233 |
| 234 static void get_stage_stats(const GrEffectStage& stage, bool* readsDst, bool* re
adsFragPosition) { | 234 static void get_stage_stats(const GrFragmentStage& stage, bool* readsDst, bool*
readsFragPosition) { |
| 235 if (stage.getEffect()->willReadDstColor()) { | 235 if (stage.getFragmentProcessor()->willReadDstColor()) { |
| 236 *readsDst = true; | 236 *readsDst = true; |
| 237 } | 237 } |
| 238 if (stage.getEffect()->willReadFragmentPosition()) { | 238 if (stage.getFragmentProcessor()->willReadFragmentPosition()) { |
| 239 *readsFragPosition = true; | 239 *readsFragPosition = true; |
| 240 } | 240 } |
| 241 } | 241 } |
| 242 |
| 242 void GrOptDrawState::getStageStats() { | 243 void GrOptDrawState::getStageStats() { |
| 243 // We will need a local coord attrib if there is one currently set on the op
tState and we are | 244 // We will need a local coord attrib if there is one currently set on the op
tState and we are |
| 244 // actually generating some effect code | 245 // actually generating some effect code |
| 245 fRequiresLocalCoordAttrib = this->hasLocalCoordAttribute() && this->numTotal
Stages() > 0; | 246 fRequiresLocalCoordAttrib = this->hasLocalCoordAttribute() && this->numTotal
Stages() > 0; |
| 246 | 247 |
| 247 // if 1 == fVACount then that VA must be position, otherwise it contains som
e attribute which | 248 // if 1 == fVACount then that VA must be position, otherwise it contains som
e attribute which |
| 248 // will require a vertexShader | 249 // will require a vertexShader |
| 249 fRequiresVertexShader = fVACount > 1; | 250 fRequiresVertexShader = fVACount > 1; |
| 250 | 251 |
| 251 fReadsDst = false; | 252 fReadsDst = false; |
| 252 fReadsFragPosition = false; | 253 fReadsFragPosition = false; |
| 253 | 254 |
| 254 for (int s = 0; s < this->numColorStages(); ++s) { | 255 for (int s = 0; s < this->numColorStages(); ++s) { |
| 255 const GrEffectStage& stage = this->getColorStage(s); | 256 const GrFragmentStage& stage = this->getColorStage(s); |
| 256 get_stage_stats(stage, &fReadsDst, &fReadsFragPosition); | 257 get_stage_stats(stage, &fReadsDst, &fReadsFragPosition); |
| 257 } | 258 } |
| 258 for (int s = 0; s < this->numCoverageStages(); ++s) { | 259 for (int s = 0; s < this->numCoverageStages(); ++s) { |
| 259 const GrEffectStage& stage = this->getCoverageStage(s); | 260 const GrFragmentStage& stage = this->getCoverageStage(s); |
| 260 get_stage_stats(stage, &fReadsDst, &fReadsFragPosition); | 261 get_stage_stats(stage, &fReadsDst, &fReadsFragPosition); |
| 261 } | 262 } |
| 262 if (this->hasGeometryProcessor()) { | 263 if (this->hasGeometryProcessor()) { |
| 263 const GrEffectStage& stage = *this->getGeometryProcessor(); | 264 const GrGeometryStage& stage = *this->getGeometryProcessor(); |
| 264 get_stage_stats(stage, &fReadsDst, &fReadsFragPosition); | 265 fReadsFragPosition = fReadsFragPosition || stage.getProcessor()->willRea
dFragmentPosition(); |
| 265 SkASSERT(fRequiresVertexShader); | 266 SkASSERT(fRequiresVertexShader); |
| 266 } | 267 } |
| 267 } | 268 } |
| 268 | 269 |
| 269 bool GrOptDrawState::operator== (const GrOptDrawState& that) const { | 270 bool GrOptDrawState::operator== (const GrOptDrawState& that) const { |
| 270 return this->isEqual(that); | 271 return this->isEqual(that); |
| 271 } | 272 } |
| 272 | 273 |
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