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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2014 Google Inc. | 3 * Copyright 2014 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 #include "GrAADistanceFieldPathRenderer.h" | 9 #include "GrAADistanceFieldPathRenderer.h" |
10 | 10 |
11 #include "GrBatch.h" | 11 #include "GrBatch.h" |
12 #include "GrBatchTarget.h" | 12 #include "GrBatchTarget.h" |
13 #include "GrBufferAllocPool.h" | 13 #include "GrBufferAllocPool.h" |
14 #include "GrContext.h" | 14 #include "GrContext.h" |
15 #include "GrPipelineBuilder.h" | 15 #include "GrPipelineBuilder.h" |
16 #include "GrResourceProvider.h" | |
17 #include "GrSurfacePriv.h" | 16 #include "GrSurfacePriv.h" |
18 #include "GrSWMaskHelper.h" | 17 #include "GrSWMaskHelper.h" |
| 18 #include "GrResourceProvider.h" |
19 #include "GrTexturePriv.h" | 19 #include "GrTexturePriv.h" |
20 #include "GrVertexBuffer.h" | 20 #include "GrVertexBuffer.h" |
21 #include "effects/GrDistanceFieldGeoProc.h" | 21 #include "effects/GrDistanceFieldGeoProc.h" |
22 | 22 |
23 #include "SkDistanceFieldGen.h" | 23 #include "SkDistanceFieldGen.h" |
24 #include "SkRTConf.h" | 24 #include "SkRTConf.h" |
25 | 25 |
26 #define ATLAS_TEXTURE_WIDTH 1024 | 26 #define ATLAS_TEXTURE_WIDTH 1024 |
27 #define ATLAS_TEXTURE_HEIGHT 2048 | 27 #define ATLAS_TEXTURE_HEIGHT 2048 |
28 #define PLOT_WIDTH 256 | 28 #define PLOT_WIDTH 256 |
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162 } else if (GrColor_ILLEGAL != init.fOverrideColor) { | 162 } else if (GrColor_ILLEGAL != init.fOverrideColor) { |
163 fBatch.fColor = init.fOverrideColor; | 163 fBatch.fColor = init.fOverrideColor; |
164 } | 164 } |
165 | 165 |
166 // setup batch properties | 166 // setup batch properties |
167 fBatch.fColorIgnored = init.fColorIgnored; | 167 fBatch.fColorIgnored = init.fColorIgnored; |
168 fBatch.fUsesLocalCoords = init.fUsesLocalCoords; | 168 fBatch.fUsesLocalCoords = init.fUsesLocalCoords; |
169 fBatch.fCoverageIgnored = init.fCoverageIgnored; | 169 fBatch.fCoverageIgnored = init.fCoverageIgnored; |
170 } | 170 } |
171 | 171 |
172 struct FlushInfo { | |
173 SkAutoTUnref<const GrVertexBuffer> fVertexBuffer; | |
174 SkAutoTUnref<const GrIndexBuffer> fIndexBuffer; | |
175 int fVertexOffset; | |
176 int fInstancesToFlush; | |
177 }; | |
178 | |
179 void generateGeometry(GrBatchTarget* batchTarget, const GrPipeline* pipeline
) override { | 172 void generateGeometry(GrBatchTarget* batchTarget, const GrPipeline* pipeline
) override { |
180 int instanceCount = fGeoData.count(); | 173 int instanceCount = fGeoData.count(); |
181 | 174 |
182 SkMatrix invert; | 175 SkMatrix invert; |
183 if (this->usesLocalCoords() && !this->viewMatrix().invert(&invert)) { | 176 if (this->usesLocalCoords() && !this->viewMatrix().invert(&invert)) { |
184 SkDebugf("Could not invert viewmatrix\n"); | 177 SkDebugf("Could not invert viewmatrix\n"); |
185 return; | 178 return; |
186 } | 179 } |
187 | 180 |
188 uint32_t flags = 0; | 181 uint32_t flags = 0; |
189 flags |= this->viewMatrix().isSimilarity() ? kSimilarity_DistanceFieldEf
fectFlag : 0; | 182 flags |= this->viewMatrix().isSimilarity() ? kSimilarity_DistanceFieldEf
fectFlag : 0; |
190 | 183 |
191 GrTextureParams params(SkShader::kRepeat_TileMode, GrTextureParams::kBil
erp_FilterMode); | 184 GrTextureParams params(SkShader::kRepeat_TileMode, GrTextureParams::kBil
erp_FilterMode); |
192 | 185 |
193 // Setup GrGeometryProcessor | 186 // Setup GrGeometryProcessor |
194 GrBatchAtlas* atlas = fAtlas; | 187 GrBatchAtlas* atlas = fAtlas; |
195 SkAutoTUnref<GrGeometryProcessor> dfProcessor( | 188 SkAutoTUnref<GrGeometryProcessor> dfProcessor( |
196 GrDistanceFieldPathGeoProc::Create(this->color(), | 189 GrDistanceFieldPathGeoProc::Create(this->color(), |
197 this->viewMatrix(), | 190 this->viewMatrix(), |
198 atlas->getTexture(), | 191 atlas->getTexture(), |
199 params, | 192 params, |
200 flags, | 193 flags, |
201 false)); | 194 false)); |
202 | 195 |
203 this->initDraw(batchTarget, dfProcessor, pipeline); | 196 this->initDraw(batchTarget, dfProcessor, pipeline); |
204 | 197 |
205 FlushInfo flushInfo; | 198 static const int kVertsPerQuad = 4; |
| 199 static const int kIndicesPerQuad = 6; |
| 200 |
| 201 SkAutoTUnref<const GrIndexBuffer> indexBuffer( |
| 202 batchTarget->resourceProvider()->refQuadIndexBuffer()); |
206 | 203 |
207 // allocate vertices | 204 // allocate vertices |
208 size_t vertexStride = dfProcessor->getVertexStride(); | 205 size_t vertexStride = dfProcessor->getVertexStride(); |
209 SkASSERT(vertexStride == 2 * sizeof(SkPoint)); | 206 SkASSERT(vertexStride == 2 * sizeof(SkPoint)); |
| 207 const GrVertexBuffer* vertexBuffer; |
| 208 int vertexCount = kVertsPerQuad * instanceCount; |
| 209 int firstVertex; |
210 | 210 |
211 const GrVertexBuffer* vertexBuffer; | |
212 void* vertices = batchTarget->vertexPool()->makeSpace(vertexStride, | 211 void* vertices = batchTarget->vertexPool()->makeSpace(vertexStride, |
213 kVerticesPerQuad *
instanceCount, | 212 vertexCount, |
214 &vertexBuffer, | 213 &vertexBuffer, |
215 &flushInfo.fVertex
Offset); | 214 &firstVertex); |
216 flushInfo.fVertexBuffer.reset(SkRef(vertexBuffer)); | 215 |
217 flushInfo.fIndexBuffer.reset(batchTarget->resourceProvider()->refQuadInd
exBuffer()); | 216 if (!vertices || !indexBuffer) { |
218 if (!vertices || !flushInfo.fIndexBuffer) { | |
219 SkDebugf("Could not allocate vertices\n"); | 217 SkDebugf("Could not allocate vertices\n"); |
220 return; | 218 return; |
221 } | 219 } |
222 | 220 |
223 flushInfo.fInstancesToFlush = 0; | 221 // We may have to flush while uploading path data to the atlas, so we se
t up the draw here |
| 222 int maxInstancesPerDraw = indexBuffer->maxQuads(); |
| 223 |
| 224 GrDrawTarget::DrawInfo drawInfo; |
| 225 drawInfo.setPrimitiveType(kTriangles_GrPrimitiveType); |
| 226 drawInfo.setStartVertex(0); |
| 227 drawInfo.setStartIndex(0); |
| 228 drawInfo.setVerticesPerInstance(kVertsPerQuad); |
| 229 drawInfo.setIndicesPerInstance(kIndicesPerQuad); |
| 230 drawInfo.adjustStartVertex(firstVertex); |
| 231 drawInfo.setVertexBuffer(vertexBuffer); |
| 232 drawInfo.setIndexBuffer(indexBuffer); |
| 233 |
| 234 int instancesToFlush = 0; |
224 for (int i = 0; i < instanceCount; i++) { | 235 for (int i = 0; i < instanceCount; i++) { |
225 Geometry& args = fGeoData[i]; | 236 Geometry& args = fGeoData[i]; |
226 | 237 |
227 // get mip level | 238 // get mip level |
228 SkScalar maxScale = this->viewMatrix().getMaxScale(); | 239 SkScalar maxScale = this->viewMatrix().getMaxScale(); |
229 const SkRect& bounds = args.fPath.getBounds(); | 240 const SkRect& bounds = args.fPath.getBounds(); |
230 SkScalar maxDim = SkMaxScalar(bounds.width(), bounds.height()); | 241 SkScalar maxDim = SkMaxScalar(bounds.width(), bounds.height()); |
231 SkScalar size = maxScale * maxDim; | 242 SkScalar size = maxScale * maxDim; |
232 uint32_t desiredDimension; | 243 uint32_t desiredDimension; |
233 if (size <= kSmallMIP) { | 244 if (size <= kSmallMIP) { |
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247 if (args.fPathData) { | 258 if (args.fPathData) { |
248 fPathCache->remove(args.fPathData->fKey); | 259 fPathCache->remove(args.fPathData->fKey); |
249 fPathList->remove(args.fPathData); | 260 fPathList->remove(args.fPathData); |
250 SkDELETE(args.fPathData); | 261 SkDELETE(args.fPathData); |
251 } | 262 } |
252 SkScalar scale = desiredDimension/maxDim; | 263 SkScalar scale = desiredDimension/maxDim; |
253 args.fPathData = SkNEW(PathData); | 264 args.fPathData = SkNEW(PathData); |
254 if (!this->addPathToAtlas(batchTarget, | 265 if (!this->addPathToAtlas(batchTarget, |
255 dfProcessor, | 266 dfProcessor, |
256 pipeline, | 267 pipeline, |
257 &flushInfo, | 268 &drawInfo, |
| 269 &instancesToFlush, |
| 270 maxInstancesPerDraw, |
258 atlas, | 271 atlas, |
259 args.fPathData, | 272 args.fPathData, |
260 args.fPath, | 273 args.fPath, |
261 args.fStroke, | 274 args.fStroke, |
262 args.fAntiAlias, | 275 args.fAntiAlias, |
263 desiredDimension, | 276 desiredDimension, |
264 scale)) { | 277 scale)) { |
265 SkDebugf("Can't rasterize path\n"); | 278 SkDebugf("Can't rasterize path\n"); |
266 return; | 279 return; |
267 } | 280 } |
268 } | 281 } |
269 | 282 |
270 atlas->setLastUseToken(args.fPathData->fID, batchTarget->currentToke
n()); | 283 atlas->setLastUseToken(args.fPathData->fID, batchTarget->currentToke
n()); |
271 | 284 |
272 // Now set vertices | 285 // Now set vertices |
273 intptr_t offset = reinterpret_cast<intptr_t>(vertices); | 286 intptr_t offset = reinterpret_cast<intptr_t>(vertices); |
274 offset += i * kVerticesPerQuad * vertexStride; | 287 offset += i * kVertsPerQuad * vertexStride; |
275 SkPoint* positions = reinterpret_cast<SkPoint*>(offset); | 288 SkPoint* positions = reinterpret_cast<SkPoint*>(offset); |
276 this->writePathVertices(batchTarget, | 289 this->drawPath(batchTarget, |
277 atlas, | 290 atlas, |
278 pipeline, | 291 pipeline, |
279 dfProcessor, | 292 dfProcessor, |
280 positions, | 293 positions, |
281 vertexStride, | 294 vertexStride, |
282 this->viewMatrix(), | 295 this->viewMatrix(), |
283 args.fPath, | 296 args.fPath, |
284 args.fPathData); | 297 args.fPathData); |
285 flushInfo.fInstancesToFlush++; | 298 instancesToFlush++; |
286 } | 299 } |
287 | 300 |
288 this->flush(batchTarget, &flushInfo); | 301 this->flush(batchTarget, &drawInfo, instancesToFlush, maxInstancesPerDra
w); |
289 } | 302 } |
290 | 303 |
291 SkSTArray<1, Geometry, true>* geoData() { return &fGeoData; } | 304 SkSTArray<1, Geometry, true>* geoData() { return &fGeoData; } |
292 | 305 |
293 private: | 306 private: |
294 AADistanceFieldPathBatch(const Geometry& geometry, GrColor color, const SkMa
trix& viewMatrix, | 307 AADistanceFieldPathBatch(const Geometry& geometry, GrColor color, const SkMa
trix& viewMatrix, |
295 GrBatchAtlas* atlas, | 308 GrBatchAtlas* atlas, |
296 PathCache* pathCache, PathDataList* pathList) { | 309 PathCache* pathCache, PathDataList* pathList) { |
297 this->initClassID<AADistanceFieldPathBatch>(); | 310 this->initClassID<AADistanceFieldPathBatch>(); |
298 fBatch.fColor = color; | 311 fBatch.fColor = color; |
299 fBatch.fViewMatrix = viewMatrix; | 312 fBatch.fViewMatrix = viewMatrix; |
300 fGeoData.push_back(geometry); | 313 fGeoData.push_back(geometry); |
301 fGeoData.back().fPathData = NULL; | 314 fGeoData.back().fPathData = NULL; |
302 | 315 |
303 fAtlas = atlas; | 316 fAtlas = atlas; |
304 fPathCache = pathCache; | 317 fPathCache = pathCache; |
305 fPathList = pathList; | 318 fPathList = pathList; |
306 | 319 |
307 // Compute bounds | 320 // Compute bounds |
308 fBounds = geometry.fPath.getBounds(); | 321 fBounds = geometry.fPath.getBounds(); |
309 viewMatrix.mapRect(&fBounds); | 322 viewMatrix.mapRect(&fBounds); |
310 } | 323 } |
311 | 324 |
312 bool addPathToAtlas(GrBatchTarget* batchTarget, | 325 bool addPathToAtlas(GrBatchTarget* batchTarget, |
313 const GrGeometryProcessor* dfProcessor, | 326 const GrGeometryProcessor* dfProcessor, |
314 const GrPipeline* pipeline, | 327 const GrPipeline* pipeline, |
315 FlushInfo* flushInfo, | 328 GrDrawTarget::DrawInfo* drawInfo, |
| 329 int* instancesToFlush, |
| 330 int maxInstancesPerDraw, |
316 GrBatchAtlas* atlas, | 331 GrBatchAtlas* atlas, |
317 PathData* pathData, | 332 PathData* pathData, |
318 const SkPath& path, | 333 const SkPath& path, |
319 const SkStrokeRec& | 334 const SkStrokeRec& |
320 stroke, bool antiAlias, | 335 stroke, bool antiAlias, |
321 uint32_t dimension, | 336 uint32_t dimension, |
322 SkScalar scale) { | 337 SkScalar scale) { |
323 const SkRect& bounds = path.getBounds(); | 338 const SkRect& bounds = path.getBounds(); |
324 | 339 |
325 // generate bounding rect for bitmap draw | 340 // generate bounding rect for bitmap draw |
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407 (const unsigned char*)bmp.getPixe
ls(), | 422 (const unsigned char*)bmp.getPixe
ls(), |
408 bmp.width(), bmp.height(), bmp.ro
wBytes()); | 423 bmp.width(), bmp.height(), bmp.ro
wBytes()); |
409 } | 424 } |
410 | 425 |
411 // add to atlas | 426 // add to atlas |
412 SkIPoint16 atlasLocation; | 427 SkIPoint16 atlasLocation; |
413 GrBatchAtlas::AtlasID id; | 428 GrBatchAtlas::AtlasID id; |
414 bool success = atlas->addToAtlas(&id, batchTarget, width, height, dfStor
age.get(), | 429 bool success = atlas->addToAtlas(&id, batchTarget, width, height, dfStor
age.get(), |
415 &atlasLocation); | 430 &atlasLocation); |
416 if (!success) { | 431 if (!success) { |
417 this->flush(batchTarget, flushInfo); | 432 this->flush(batchTarget, drawInfo, *instancesToFlush, maxInstancesPe
rDraw); |
418 this->initDraw(batchTarget, dfProcessor, pipeline); | 433 this->initDraw(batchTarget, dfProcessor, pipeline); |
| 434 *instancesToFlush = 0; |
419 | 435 |
420 SkDEBUGCODE(success =) atlas->addToAtlas(&id, batchTarget, width, he
ight, | 436 SkDEBUGCODE(success =) atlas->addToAtlas(&id, batchTarget, width, he
ight, |
421 dfStorage.get(), &atlasLoca
tion); | 437 dfStorage.get(), &atlasLoca
tion); |
422 SkASSERT(success); | 438 SkASSERT(success); |
423 | 439 |
424 } | 440 } |
425 | 441 |
426 // add to cache | 442 // add to cache |
427 pathData->fKey.fGenID = path.getGenerationID(); | 443 pathData->fKey.fGenID = path.getGenerationID(); |
428 pathData->fKey.fDimension = dimension; | 444 pathData->fKey.fDimension = dimension; |
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444 pathData->fAtlasLocation = atlasLocation; | 460 pathData->fAtlasLocation = atlasLocation; |
445 | 461 |
446 fPathCache->add(pathData); | 462 fPathCache->add(pathData); |
447 fPathList->addToTail(pathData); | 463 fPathList->addToTail(pathData); |
448 #ifdef DF_PATH_TRACKING | 464 #ifdef DF_PATH_TRACKING |
449 ++g_NumCachedPaths; | 465 ++g_NumCachedPaths; |
450 #endif | 466 #endif |
451 return true; | 467 return true; |
452 } | 468 } |
453 | 469 |
454 void writePathVertices(GrBatchTarget* target, | 470 void drawPath(GrBatchTarget* target, |
455 GrBatchAtlas* atlas, | 471 GrBatchAtlas* atlas, |
456 const GrPipeline* pipeline, | 472 const GrPipeline* pipeline, |
457 const GrGeometryProcessor* gp, | 473 const GrGeometryProcessor* gp, |
458 SkPoint* positions, | 474 SkPoint* positions, |
459 size_t vertexStride, | 475 size_t vertexStride, |
460 const SkMatrix& viewMatrix, | 476 const SkMatrix& viewMatrix, |
461 const SkPath& path, | 477 const SkPath& path, |
462 const PathData* pathData) { | 478 const PathData* pathData) { |
463 GrTexture* texture = atlas->getTexture(); | 479 GrTexture* texture = atlas->getTexture(); |
464 | 480 |
465 SkScalar dx = pathData->fBounds.fLeft; | 481 SkScalar dx = pathData->fBounds.fLeft; |
466 SkScalar dy = pathData->fBounds.fTop; | 482 SkScalar dy = pathData->fBounds.fTop; |
467 SkScalar width = pathData->fBounds.width(); | 483 SkScalar width = pathData->fBounds.width(); |
468 SkScalar height = pathData->fBounds.height(); | 484 SkScalar height = pathData->fBounds.height(); |
469 | 485 |
470 SkScalar invScale = 1.0f / pathData->fScale; | 486 SkScalar invScale = 1.0f / pathData->fScale; |
471 dx *= invScale; | 487 dx *= invScale; |
472 dy *= invScale; | 488 dy *= invScale; |
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499 | 515 |
500 // TODO remove this when batch is everywhere | 516 // TODO remove this when batch is everywhere |
501 GrPipelineInfo init; | 517 GrPipelineInfo init; |
502 init.fColorIgnored = fBatch.fColorIgnored; | 518 init.fColorIgnored = fBatch.fColorIgnored; |
503 init.fOverrideColor = GrColor_ILLEGAL; | 519 init.fOverrideColor = GrColor_ILLEGAL; |
504 init.fCoverageIgnored = fBatch.fCoverageIgnored; | 520 init.fCoverageIgnored = fBatch.fCoverageIgnored; |
505 init.fUsesLocalCoords = this->usesLocalCoords(); | 521 init.fUsesLocalCoords = this->usesLocalCoords(); |
506 dfProcessor->initBatchTracker(batchTarget->currentBatchTracker(), init); | 522 dfProcessor->initBatchTracker(batchTarget->currentBatchTracker(), init); |
507 } | 523 } |
508 | 524 |
509 void flush(GrBatchTarget* batchTarget, FlushInfo* flushInfo) { | 525 void flush(GrBatchTarget* batchTarget, |
510 GrDrawTarget::DrawInfo drawInfo; | 526 GrDrawTarget::DrawInfo* drawInfo, |
511 int instancesToFlush = flushInfo->fInstancesToFlush; | 527 int instanceCount, |
512 int maxInstancesPerDraw = flushInfo->fIndexBuffer->maxQuads(); | 528 int maxInstancesPerDraw) { |
513 drawInfo.initInstanced(kTriangles_GrPrimitiveType, flushInfo->fVertexBuf
fer, | 529 while (instanceCount) { |
514 flushInfo->fIndexBuffer, flushInfo->fVertexOffset, kVerticesPerQuad, | 530 drawInfo->setInstanceCount(SkTMin(instanceCount, maxInstancesPerDraw
)); |
515 kIndicesPerQuad, &instancesToFlush, maxInstancesPerDraw); | 531 drawInfo->setVertexCount(drawInfo->instanceCount() * drawInfo->verti
cesPerInstance()); |
516 do { | 532 drawInfo->setIndexCount(drawInfo->instanceCount() * drawInfo->indice
sPerInstance()); |
517 batchTarget->draw(drawInfo); | 533 |
518 } while (drawInfo.nextInstances(&instancesToFlush, maxInstancesPerDraw))
; | 534 batchTarget->draw(*drawInfo); |
519 flushInfo->fVertexOffset += kVerticesPerQuad * flushInfo->fInstancesToFl
ush; | 535 |
520 flushInfo->fInstancesToFlush = 0; | 536 drawInfo->setStartVertex(drawInfo->startVertex() + drawInfo->vertexC
ount()); |
| 537 instanceCount -= drawInfo->instanceCount(); |
| 538 } |
521 } | 539 } |
522 | 540 |
523 GrColor color() const { return fBatch.fColor; } | 541 GrColor color() const { return fBatch.fColor; } |
524 const SkMatrix& viewMatrix() const { return fBatch.fViewMatrix; } | 542 const SkMatrix& viewMatrix() const { return fBatch.fViewMatrix; } |
525 bool usesLocalCoords() const { return fBatch.fUsesLocalCoords; } | 543 bool usesLocalCoords() const { return fBatch.fUsesLocalCoords; } |
526 | 544 |
527 bool onCombineIfPossible(GrBatch* t) override { | 545 bool onCombineIfPossible(GrBatch* t) override { |
528 AADistanceFieldPathBatch* that = t->cast<AADistanceFieldPathBatch>(); | 546 AADistanceFieldPathBatch* that = t->cast<AADistanceFieldPathBatch>(); |
529 | 547 |
530 // TODO we could actually probably do a bunch of this work on the CPU, i
e map viewMatrix, | 548 // TODO we could actually probably do a bunch of this work on the CPU, i
e map viewMatrix, |
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596 geometry.fPath = path; | 614 geometry.fPath = path; |
597 geometry.fAntiAlias = antiAlias; | 615 geometry.fAntiAlias = antiAlias; |
598 | 616 |
599 SkAutoTUnref<GrBatch> batch(AADistanceFieldPathBatch::Create(geometry, color
, viewMatrix, | 617 SkAutoTUnref<GrBatch> batch(AADistanceFieldPathBatch::Create(geometry, color
, viewMatrix, |
600 fAtlas, &fPathC
ache, &fPathList)); | 618 fAtlas, &fPathC
ache, &fPathList)); |
601 target->drawBatch(pipelineBuilder, batch); | 619 target->drawBatch(pipelineBuilder, batch); |
602 | 620 |
603 return true; | 621 return true; |
604 } | 622 } |
605 | 623 |
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