SkDebugCanvas.cpp revision 6e998e6137e6b25f047b5c5943f2b02485165e3e
1/* 2 * Copyright 2012 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8#include "SkCanvasPriv.h" 9#include "SkClipStack.h" 10#include "SkDebugCanvas.h" 11#include "SkDrawCommand.h" 12#include "SkPaintFilterCanvas.h" 13#include "SkOverdrawMode.h" 14 15#if SK_SUPPORT_GPU 16#include "GrAuditTrail.h" 17#include "GrContext.h" 18#include "GrRenderTarget.h" 19#include "SkGpuDevice.h" 20#endif 21 22#define SKDEBUGCANVAS_VERSION 1 23#define SKDEBUGCANVAS_ATTRIBUTE_VERSION "version" 24#define SKDEBUGCANVAS_ATTRIBUTE_COMMANDS "commands" 25#define SKDEBUGCANVAS_ATTRIBUTE_AUDITTRAIL "auditTrail" 26 27class DebugPaintFilterCanvas : public SkPaintFilterCanvas { 28public: 29 DebugPaintFilterCanvas(int width, 30 int height, 31 bool overdrawViz, 32 bool overrideFilterQuality, 33 SkFilterQuality quality) 34 : INHERITED(width, height) 35 , fOverdrawXfermode(overdrawViz ? SkOverdrawMode::Make() : nullptr) 36 , fOverrideFilterQuality(overrideFilterQuality) 37 , fFilterQuality(quality) {} 38 39protected: 40 bool onFilter(SkTCopyOnFirstWrite<SkPaint>* paint, Type) const override { 41 if (*paint) { 42 if (nullptr != fOverdrawXfermode.get()) { 43 paint->writable()->setAntiAlias(false); 44 paint->writable()->setXfermode(fOverdrawXfermode); 45 } 46 47 if (fOverrideFilterQuality) { 48 paint->writable()->setFilterQuality(fFilterQuality); 49 } 50 } 51 return true; 52 } 53 54 void onDrawPicture(const SkPicture* picture, 55 const SkMatrix* matrix, 56 const SkPaint* paint) override { 57 // We need to replay the picture onto this canvas in order to filter its internal paints. 58 this->SkCanvas::onDrawPicture(picture, matrix, paint); 59 } 60 61private: 62 sk_sp<SkXfermode> fOverdrawXfermode; 63 64 bool fOverrideFilterQuality; 65 SkFilterQuality fFilterQuality; 66 67 typedef SkPaintFilterCanvas INHERITED; 68}; 69 70SkDebugCanvas::SkDebugCanvas(int width, int height) 71 : INHERITED(width, height) 72 , fPicture(nullptr) 73 , fFilter(false) 74 , fMegaVizMode(false) 75 , fOverdrawViz(false) 76 , fOverrideFilterQuality(false) 77 , fFilterQuality(kNone_SkFilterQuality) 78 , fClipVizColor(SK_ColorTRANSPARENT) 79 , fDrawGpuBatchBounds(false) { 80 fUserMatrix.reset(); 81 82 // SkPicturePlayback uses the base-class' quickReject calls to cull clipped 83 // operations. This can lead to problems in the debugger which expects all 84 // the operations in the captured skp to appear in the debug canvas. To 85 // circumvent this we create a wide open clip here (an empty clip rect 86 // is not sufficient). 87 // Internally, the SkRect passed to clipRect is converted to an SkIRect and 88 // rounded out. The following code creates a nearly maximal rect that will 89 // not get collapsed by the coming conversions (Due to precision loss the 90 // inset has to be surprisingly large). 91 SkIRect largeIRect = SkIRect::MakeLargest(); 92 largeIRect.inset(1024, 1024); 93 SkRect large = SkRect::Make(largeIRect); 94#ifdef SK_DEBUG 95 SkASSERT(!large.roundOut().isEmpty()); 96#endif 97 // call the base class' version to avoid adding a draw command 98 this->INHERITED::onClipRect(large, SkRegion::kReplace_Op, kHard_ClipEdgeStyle); 99} 100 101SkDebugCanvas::~SkDebugCanvas() { 102 fCommandVector.deleteAll(); 103} 104 105void SkDebugCanvas::addDrawCommand(SkDrawCommand* command) { 106 fCommandVector.push(command); 107} 108 109void SkDebugCanvas::draw(SkCanvas* canvas) { 110 if (!fCommandVector.isEmpty()) { 111 this->drawTo(canvas, fCommandVector.count() - 1); 112 } 113} 114 115void SkDebugCanvas::applyUserTransform(SkCanvas* canvas) { 116 canvas->concat(fUserMatrix); 117} 118 119int SkDebugCanvas::getCommandAtPoint(int x, int y, int index) { 120 SkBitmap bitmap; 121 bitmap.allocPixels(SkImageInfo::MakeN32Premul(1, 1)); 122 123 SkCanvas canvas(bitmap); 124 canvas.translate(SkIntToScalar(-x), SkIntToScalar(-y)); 125 this->applyUserTransform(&canvas); 126 127 int layer = 0; 128 SkColor prev = bitmap.getColor(0,0); 129 for (int i = 0; i < index; i++) { 130 if (fCommandVector[i]->isVisible()) { 131 fCommandVector[i]->setUserMatrix(fUserMatrix); 132 fCommandVector[i]->execute(&canvas); 133 } 134 if (prev != bitmap.getColor(0,0)) { 135 layer = i; 136 } 137 prev = bitmap.getColor(0,0); 138 } 139 return layer; 140} 141 142class SkDebugClipVisitor : public SkCanvas::ClipVisitor { 143public: 144 SkDebugClipVisitor(SkCanvas* canvas) : fCanvas(canvas) {} 145 146 void clipRect(const SkRect& r, SkRegion::Op, bool doAA) override { 147 SkPaint p; 148 p.setColor(SK_ColorRED); 149 p.setStyle(SkPaint::kStroke_Style); 150 p.setAntiAlias(doAA); 151 fCanvas->drawRect(r, p); 152 } 153 void clipRRect(const SkRRect& rr, SkRegion::Op, bool doAA) override { 154 SkPaint p; 155 p.setColor(SK_ColorGREEN); 156 p.setStyle(SkPaint::kStroke_Style); 157 p.setAntiAlias(doAA); 158 fCanvas->drawRRect(rr, p); 159 } 160 void clipPath(const SkPath& path, SkRegion::Op, bool doAA) override { 161 SkPaint p; 162 p.setColor(SK_ColorBLUE); 163 p.setStyle(SkPaint::kStroke_Style); 164 p.setAntiAlias(doAA); 165 fCanvas->drawPath(path, p); 166 } 167 168protected: 169 SkCanvas* fCanvas; 170 171private: 172 typedef SkCanvas::ClipVisitor INHERITED; 173}; 174 175// set up the saveLayer commands so that the active ones 176// return true in their 'active' method 177void SkDebugCanvas::markActiveCommands(int index) { 178 fActiveLayers.rewind(); 179 180 for (int i = 0; i < fCommandVector.count(); ++i) { 181 fCommandVector[i]->setActive(false); 182 } 183 184 for (int i = 0; i < index; ++i) { 185 SkDrawCommand::Action result = fCommandVector[i]->action(); 186 if (SkDrawCommand::kPushLayer_Action == result) { 187 fActiveLayers.push(fCommandVector[i]); 188 } else if (SkDrawCommand::kPopLayer_Action == result) { 189 fActiveLayers.pop(); 190 } 191 } 192 193 for (int i = 0; i < fActiveLayers.count(); ++i) { 194 fActiveLayers[i]->setActive(true); 195 } 196 197} 198 199void SkDebugCanvas::drawTo(SkCanvas* canvas, int index, int m) { 200 SkASSERT(!fCommandVector.isEmpty()); 201 SkASSERT(index < fCommandVector.count()); 202 203 int saveCount = canvas->save(); 204 205 SkRect windowRect = SkRect::MakeWH(SkIntToScalar(canvas->getBaseLayerSize().width()), 206 SkIntToScalar(canvas->getBaseLayerSize().height())); 207 208 bool pathOpsMode = getAllowSimplifyClip(); 209 canvas->setAllowSimplifyClip(pathOpsMode); 210 canvas->clear(SK_ColorWHITE); 211 canvas->resetMatrix(); 212 if (!windowRect.isEmpty()) { 213 canvas->clipRect(windowRect, SkRegion::kReplace_Op); 214 } 215 this->applyUserTransform(canvas); 216 217 if (fPaintFilterCanvas) { 218 fPaintFilterCanvas->addCanvas(canvas); 219 canvas = fPaintFilterCanvas.get(); 220 221 } 222 223 if (fMegaVizMode) { 224 this->markActiveCommands(index); 225 } 226 227#if SK_SUPPORT_GPU 228 // If we have a GPU backend we can also visualize the batching information 229 GrAuditTrail* at = nullptr; 230 if (fDrawGpuBatchBounds || m != -1) { 231 at = this->getAuditTrail(canvas); 232 } 233#endif 234 235 for (int i = 0; i <= index; i++) { 236 if (i == index && fFilter) { 237 canvas->clear(0xAAFFFFFF); 238 } 239 240#if SK_SUPPORT_GPU 241 // We need to flush any pending operations, or they might batch with commands below. 242 // Previous operations were not registered with the audit trail when they were 243 // created, so if we allow them to combine, the audit trail will fail to find them. 244 canvas->flush(); 245 246 GrAuditTrail::AutoCollectBatches* acb = nullptr; 247 if (at) { 248 acb = new GrAuditTrail::AutoCollectBatches(at, i); 249 } 250#endif 251 252 if (fCommandVector[i]->isVisible()) { 253 if (fMegaVizMode && fCommandVector[i]->active()) { 254 // "active" commands execute their visualization behaviors: 255 // All active saveLayers get replaced with saves so all draws go to the 256 // visible canvas. 257 // All active culls draw their cull box 258 fCommandVector[i]->vizExecute(canvas); 259 } else { 260 fCommandVector[i]->setUserMatrix(fUserMatrix); 261 fCommandVector[i]->execute(canvas); 262 } 263 } 264#if SK_SUPPORT_GPU 265 if (at && acb) { 266 delete acb; 267 } 268#endif 269 } 270 271 if (SkColorGetA(fClipVizColor) != 0) { 272 canvas->save(); 273 #define LARGE_COORD 1000000000 274 canvas->clipRect(SkRect::MakeLTRB(-LARGE_COORD, -LARGE_COORD, LARGE_COORD, LARGE_COORD), 275 SkRegion::kReverseDifference_Op); 276 SkPaint clipPaint; 277 clipPaint.setColor(fClipVizColor); 278 canvas->drawPaint(clipPaint); 279 canvas->restore(); 280 } 281 282 if (fMegaVizMode) { 283 canvas->save(); 284 // nuke the CTM 285 canvas->resetMatrix(); 286 // turn off clipping 287 if (!windowRect.isEmpty()) { 288 SkRect r = windowRect; 289 r.outset(SK_Scalar1, SK_Scalar1); 290 canvas->clipRect(r, SkRegion::kReplace_Op); 291 } 292 // visualize existing clips 293 SkDebugClipVisitor visitor(canvas); 294 295 canvas->replayClips(&visitor); 296 297 canvas->restore(); 298 } 299 if (pathOpsMode) { 300 this->resetClipStackData(); 301 const SkClipStack* clipStack = canvas->getClipStack(); 302 SkClipStack::Iter iter(*clipStack, SkClipStack::Iter::kBottom_IterStart); 303 const SkClipStack::Element* element; 304 SkPath devPath; 305 while ((element = iter.next())) { 306 SkClipStack::Element::Type type = element->getType(); 307 SkPath operand; 308 if (type != SkClipStack::Element::kEmpty_Type) { 309 element->asPath(&operand); 310 } 311 SkRegion::Op elementOp = element->getOp(); 312 this->addClipStackData(devPath, operand, elementOp); 313 if (elementOp == SkRegion::kReplace_Op) { 314 devPath = operand; 315 } else { 316 Op(devPath, operand, (SkPathOp) elementOp, &devPath); 317 } 318 } 319 this->lastClipStackData(devPath); 320 } 321 fMatrix = canvas->getTotalMatrix(); 322 if (!canvas->getClipDeviceBounds(&fClip)) { 323 fClip.setEmpty(); 324 } 325 326 canvas->restoreToCount(saveCount); 327 328 if (fPaintFilterCanvas) { 329 fPaintFilterCanvas->removeAll(); 330 } 331 332#if SK_SUPPORT_GPU 333 // draw any batches if required and issue a full reset onto GrAuditTrail 334 if (at) { 335 // just in case there is global reordering, we flush the canvas before querying 336 // GrAuditTrail 337 GrAuditTrail::AutoEnable ae(at); 338 canvas->flush(); 339 340 // we pick three colorblind-safe colors, 75% alpha 341 static const SkColor kTotalBounds = SkColorSetARGB(0xC0, 0x6A, 0x3D, 0x9A); 342 static const SkColor kOpBatchBounds = SkColorSetARGB(0xC0, 0xE3, 0x1A, 0x1C); 343 static const SkColor kOtherBatchBounds = SkColorSetARGB(0xC0, 0xFF, 0x7F, 0x00); 344 345 // get the render target of the top device so we can ignore batches drawn offscreen 346 SkBaseDevice* bd = canvas->getDevice_just_for_deprecated_compatibility_testing(); 347 SkGpuDevice* gbd = reinterpret_cast<SkGpuDevice*>(bd); 348 uint32_t rtID = gbd->accessRenderTarget()->getUniqueID(); 349 350 // get the bounding boxes to draw 351 SkTArray<GrAuditTrail::BatchInfo> childrenBounds; 352 if (m == -1) { 353 at->getBoundsByClientID(&childrenBounds, index); 354 } else { 355 // the client wants us to draw the mth batch 356 at->getBoundsByBatchListID(&childrenBounds.push_back(), m); 357 } 358 SkPaint paint; 359 paint.setStyle(SkPaint::kStroke_Style); 360 paint.setStrokeWidth(1); 361 for (int i = 0; i < childrenBounds.count(); i++) { 362 if (childrenBounds[i].fRenderTargetUniqueID != rtID) { 363 // offscreen draw, ignore for now 364 continue; 365 } 366 paint.setColor(kTotalBounds); 367 canvas->drawRect(childrenBounds[i].fBounds, paint); 368 for (int j = 0; j < childrenBounds[i].fBatches.count(); j++) { 369 const GrAuditTrail::BatchInfo::Batch& batch = childrenBounds[i].fBatches[j]; 370 if (batch.fClientID != index) { 371 paint.setColor(kOtherBatchBounds); 372 } else { 373 paint.setColor(kOpBatchBounds); 374 } 375 canvas->drawRect(batch.fBounds, paint); 376 } 377 } 378 } 379#endif 380 this->cleanupAuditTrail(canvas); 381} 382 383void SkDebugCanvas::deleteDrawCommandAt(int index) { 384 SkASSERT(index < fCommandVector.count()); 385 delete fCommandVector[index]; 386 fCommandVector.remove(index); 387} 388 389SkDrawCommand* SkDebugCanvas::getDrawCommandAt(int index) { 390 SkASSERT(index < fCommandVector.count()); 391 return fCommandVector[index]; 392} 393 394void SkDebugCanvas::setDrawCommandAt(int index, SkDrawCommand* command) { 395 SkASSERT(index < fCommandVector.count()); 396 delete fCommandVector[index]; 397 fCommandVector[index] = command; 398} 399 400const SkTDArray<SkString*>* SkDebugCanvas::getCommandInfo(int index) const { 401 SkASSERT(index < fCommandVector.count()); 402 return fCommandVector[index]->Info(); 403} 404 405bool SkDebugCanvas::getDrawCommandVisibilityAt(int index) { 406 SkASSERT(index < fCommandVector.count()); 407 return fCommandVector[index]->isVisible(); 408} 409 410const SkTDArray <SkDrawCommand*>& SkDebugCanvas::getDrawCommands() const { 411 return fCommandVector; 412} 413 414SkTDArray <SkDrawCommand*>& SkDebugCanvas::getDrawCommands() { 415 return fCommandVector; 416} 417 418GrAuditTrail* SkDebugCanvas::getAuditTrail(SkCanvas* canvas) { 419 GrAuditTrail* at = nullptr; 420#if SK_SUPPORT_GPU 421 GrContext* ctx = canvas->getGrContext(); 422 if (ctx) { 423 at = ctx->getAuditTrail(); 424 } 425#endif 426 return at; 427} 428 429void SkDebugCanvas::drawAndCollectBatches(int n, SkCanvas* canvas) { 430#if SK_SUPPORT_GPU 431 GrAuditTrail* at = this->getAuditTrail(canvas); 432 if (at) { 433 // loop over all of the commands and draw them, this is to collect reordering 434 // information 435 for (int i = 0; i < this->getSize() && i <= n; i++) { 436 GrAuditTrail::AutoCollectBatches enable(at, i); 437 fCommandVector[i]->execute(canvas); 438 } 439 440 // in case there is some kind of global reordering 441 { 442 GrAuditTrail::AutoEnable ae(at); 443 canvas->flush(); 444 } 445 } 446#endif 447} 448 449void SkDebugCanvas::cleanupAuditTrail(SkCanvas* canvas) { 450 GrAuditTrail* at = this->getAuditTrail(canvas); 451 if (at) { 452#if SK_SUPPORT_GPU 453 GrAuditTrail::AutoEnable ae(at); 454 at->fullReset(); 455#endif 456 } 457} 458 459Json::Value SkDebugCanvas::toJSON(UrlDataManager& urlDataManager, int n, SkCanvas* canvas) { 460 this->drawAndCollectBatches(n, canvas); 461 462 // now collect json 463#if SK_SUPPORT_GPU 464 GrAuditTrail* at = this->getAuditTrail(canvas); 465#endif 466 Json::Value result = Json::Value(Json::objectValue); 467 result[SKDEBUGCANVAS_ATTRIBUTE_VERSION] = Json::Value(SKDEBUGCANVAS_VERSION); 468 Json::Value commands = Json::Value(Json::arrayValue); 469 for (int i = 0; i < this->getSize() && i <= n; i++) { 470 commands[i] = this->getDrawCommandAt(i)->toJSON(urlDataManager); 471#if SK_SUPPORT_GPU 472 if (at) { 473 // TODO if this is inefficient we could add a method to GrAuditTrail which takes 474 // a Json::Value and is only compiled in this file 475 Json::Value parsedFromString; 476 Json::Reader reader; 477 SkAssertResult(reader.parse(at->toJson(i).c_str(), parsedFromString)); 478 479 commands[i][SKDEBUGCANVAS_ATTRIBUTE_AUDITTRAIL] = parsedFromString; 480 } 481#endif 482 } 483 this->cleanupAuditTrail(canvas); 484 result[SKDEBUGCANVAS_ATTRIBUTE_COMMANDS] = commands; 485 return result; 486} 487 488Json::Value SkDebugCanvas::toJSONBatchList(int n, SkCanvas* canvas) { 489 this->drawAndCollectBatches(n, canvas); 490 491 Json::Value parsedFromString; 492#if SK_SUPPORT_GPU 493 GrAuditTrail* at = this->getAuditTrail(canvas); 494 if (at) { 495 GrAuditTrail::AutoManageBatchList enable(at); 496 Json::Reader reader; 497 SkAssertResult(reader.parse(at->toJson().c_str(), parsedFromString)); 498 } 499#endif 500 this->cleanupAuditTrail(canvas); 501 return parsedFromString; 502} 503 504void SkDebugCanvas::updatePaintFilterCanvas() { 505 if (!fOverdrawViz && !fOverrideFilterQuality) { 506 fPaintFilterCanvas.reset(nullptr); 507 return; 508 } 509 510 const SkImageInfo info = this->imageInfo(); 511 fPaintFilterCanvas.reset(new DebugPaintFilterCanvas(info.width(), info.height(), fOverdrawViz, 512 fOverrideFilterQuality, fFilterQuality)); 513} 514 515void SkDebugCanvas::setOverdrawViz(bool overdrawViz) { 516 if (fOverdrawViz == overdrawViz) { 517 return; 518 } 519 520 fOverdrawViz = overdrawViz; 521 this->updatePaintFilterCanvas(); 522} 523 524void SkDebugCanvas::overrideTexFiltering(bool overrideTexFiltering, SkFilterQuality quality) { 525 if (fOverrideFilterQuality == overrideTexFiltering && fFilterQuality == quality) { 526 return; 527 } 528 529 fOverrideFilterQuality = overrideTexFiltering; 530 fFilterQuality = quality; 531 this->updatePaintFilterCanvas(); 532} 533 534void SkDebugCanvas::onClipPath(const SkPath& path, SkRegion::Op op, ClipEdgeStyle edgeStyle) { 535 this->addDrawCommand(new SkClipPathCommand(path, op, kSoft_ClipEdgeStyle == edgeStyle)); 536} 537 538void SkDebugCanvas::onClipRect(const SkRect& rect, SkRegion::Op op, ClipEdgeStyle edgeStyle) { 539 this->addDrawCommand(new SkClipRectCommand(rect, op, kSoft_ClipEdgeStyle == edgeStyle)); 540} 541 542void SkDebugCanvas::onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeStyle edgeStyle) { 543 this->addDrawCommand(new SkClipRRectCommand(rrect, op, kSoft_ClipEdgeStyle == edgeStyle)); 544} 545 546void SkDebugCanvas::onClipRegion(const SkRegion& region, SkRegion::Op op) { 547 this->addDrawCommand(new SkClipRegionCommand(region, op)); 548} 549 550void SkDebugCanvas::didConcat(const SkMatrix& matrix) { 551 this->addDrawCommand(new SkConcatCommand(matrix)); 552 this->INHERITED::didConcat(matrix); 553} 554 555void SkDebugCanvas::onDrawAnnotation(const SkRect& rect, const char key[], SkData* value) { 556 this->addDrawCommand(new SkDrawAnnotationCommand(rect, key, sk_ref_sp(value))); 557} 558 559void SkDebugCanvas::onDrawBitmap(const SkBitmap& bitmap, SkScalar left, 560 SkScalar top, const SkPaint* paint) { 561 this->addDrawCommand(new SkDrawBitmapCommand(bitmap, left, top, paint)); 562} 563 564void SkDebugCanvas::onDrawBitmapRect(const SkBitmap& bitmap, const SkRect* src, const SkRect& dst, 565 const SkPaint* paint, SrcRectConstraint constraint) { 566 this->addDrawCommand(new SkDrawBitmapRectCommand(bitmap, src, dst, paint, 567 (SrcRectConstraint)constraint)); 568} 569 570void SkDebugCanvas::onDrawBitmapNine(const SkBitmap& bitmap, const SkIRect& center, 571 const SkRect& dst, const SkPaint* paint) { 572 this->addDrawCommand(new SkDrawBitmapNineCommand(bitmap, center, dst, paint)); 573} 574 575void SkDebugCanvas::onDrawImage(const SkImage* image, SkScalar left, SkScalar top, 576 const SkPaint* paint) { 577 this->addDrawCommand(new SkDrawImageCommand(image, left, top, paint)); 578} 579 580void SkDebugCanvas::onDrawImageRect(const SkImage* image, const SkRect* src, const SkRect& dst, 581 const SkPaint* paint, SrcRectConstraint constraint) { 582 this->addDrawCommand(new SkDrawImageRectCommand(image, src, dst, paint, constraint)); 583} 584 585void SkDebugCanvas::onDrawOval(const SkRect& oval, const SkPaint& paint) { 586 this->addDrawCommand(new SkDrawOvalCommand(oval, paint)); 587} 588 589void SkDebugCanvas::onDrawPaint(const SkPaint& paint) { 590 this->addDrawCommand(new SkDrawPaintCommand(paint)); 591} 592 593void SkDebugCanvas::onDrawPath(const SkPath& path, const SkPaint& paint) { 594 this->addDrawCommand(new SkDrawPathCommand(path, paint)); 595} 596 597void SkDebugCanvas::onDrawPicture(const SkPicture* picture, 598 const SkMatrix* matrix, 599 const SkPaint* paint) { 600 this->addDrawCommand(new SkBeginDrawPictureCommand(picture, matrix, paint)); 601 SkAutoCanvasMatrixPaint acmp(this, matrix, paint, picture->cullRect()); 602 picture->playback(this); 603 this->addDrawCommand(new SkEndDrawPictureCommand(SkToBool(matrix) || SkToBool(paint))); 604} 605 606void SkDebugCanvas::onDrawPoints(PointMode mode, size_t count, 607 const SkPoint pts[], const SkPaint& paint) { 608 this->addDrawCommand(new SkDrawPointsCommand(mode, count, pts, paint)); 609} 610 611void SkDebugCanvas::onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[], 612 const SkPaint& paint) { 613 this->addDrawCommand(new SkDrawPosTextCommand(text, byteLength, pos, paint)); 614} 615 616void SkDebugCanvas::onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[], 617 SkScalar constY, const SkPaint& paint) { 618 this->addDrawCommand( 619 new SkDrawPosTextHCommand(text, byteLength, xpos, constY, paint)); 620} 621 622void SkDebugCanvas::onDrawRect(const SkRect& rect, const SkPaint& paint) { 623 // NOTE(chudy): Messing up when renamed to DrawRect... Why? 624 addDrawCommand(new SkDrawRectCommand(rect, paint)); 625} 626 627void SkDebugCanvas::onDrawRRect(const SkRRect& rrect, const SkPaint& paint) { 628 this->addDrawCommand(new SkDrawRRectCommand(rrect, paint)); 629} 630 631void SkDebugCanvas::onDrawDRRect(const SkRRect& outer, const SkRRect& inner, 632 const SkPaint& paint) { 633 this->addDrawCommand(new SkDrawDRRectCommand(outer, inner, paint)); 634} 635 636void SkDebugCanvas::onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y, 637 const SkPaint& paint) { 638 this->addDrawCommand(new SkDrawTextCommand(text, byteLength, x, y, paint)); 639} 640 641void SkDebugCanvas::onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path, 642 const SkMatrix* matrix, const SkPaint& paint) { 643 this->addDrawCommand( 644 new SkDrawTextOnPathCommand(text, byteLength, path, matrix, paint)); 645} 646 647void SkDebugCanvas::onDrawTextRSXform(const void* text, size_t byteLength, const SkRSXform xform[], 648 const SkRect* cull, const SkPaint& paint) { 649 this->addDrawCommand(new SkDrawTextRSXformCommand(text, byteLength, xform, cull, paint)); 650} 651 652void SkDebugCanvas::onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y, 653 const SkPaint& paint) { 654 this->addDrawCommand(new SkDrawTextBlobCommand(blob, x, y, paint)); 655} 656 657void SkDebugCanvas::onDrawPatch(const SkPoint cubics[12], const SkColor colors[4], 658 const SkPoint texCoords[4], SkXfermode* xmode, 659 const SkPaint& paint) { 660 this->addDrawCommand(new SkDrawPatchCommand(cubics, colors, texCoords, xmode, paint)); 661} 662 663void SkDebugCanvas::onDrawVertices(VertexMode vmode, int vertexCount, const SkPoint vertices[], 664 const SkPoint texs[], const SkColor colors[], 665 SkXfermode*, const uint16_t indices[], int indexCount, 666 const SkPaint& paint) { 667 this->addDrawCommand(new SkDrawVerticesCommand(vmode, vertexCount, vertices, 668 texs, colors, nullptr, indices, indexCount, paint)); 669} 670 671void SkDebugCanvas::willRestore() { 672 this->addDrawCommand(new SkRestoreCommand()); 673 this->INHERITED::willRestore(); 674} 675 676void SkDebugCanvas::willSave() { 677 this->addDrawCommand(new SkSaveCommand()); 678 this->INHERITED::willSave(); 679} 680 681SkCanvas::SaveLayerStrategy SkDebugCanvas::getSaveLayerStrategy(const SaveLayerRec& rec) { 682 this->addDrawCommand(new SkSaveLayerCommand(rec)); 683 (void)this->INHERITED::getSaveLayerStrategy(rec); 684 // No need for a full layer. 685 return kNoLayer_SaveLayerStrategy; 686} 687 688void SkDebugCanvas::didSetMatrix(const SkMatrix& matrix) { 689 this->addDrawCommand(new SkSetMatrixCommand(matrix)); 690 this->INHERITED::didSetMatrix(matrix); 691} 692 693void SkDebugCanvas::toggleCommand(int index, bool toggle) { 694 SkASSERT(index < fCommandVector.count()); 695 fCommandVector[index]->setVisible(toggle); 696} 697 698static const char* gFillTypeStrs[] = { 699 "kWinding_FillType", 700 "kEvenOdd_FillType", 701 "kInverseWinding_FillType", 702 "kInverseEvenOdd_FillType" 703}; 704 705static const char* gOpStrs[] = { 706 "kDifference_PathOp", 707 "kIntersect_PathOp", 708 "kUnion_PathOp", 709 "kXor_PathOp", 710 "kReverseDifference_PathOp", 711}; 712 713static const char kHTML4SpaceIndent[] = " "; 714 715void SkDebugCanvas::outputScalar(SkScalar num) { 716 if (num == (int) num) { 717 fClipStackData.appendf("%d", (int) num); 718 } else { 719 SkString str; 720 str.printf("%1.9g", num); 721 int width = (int) str.size(); 722 const char* cStr = str.c_str(); 723 while (cStr[width - 1] == '0') { 724 --width; 725 } 726 str.resize(width); 727 fClipStackData.appendf("%sf", str.c_str()); 728 } 729} 730 731void SkDebugCanvas::outputPointsCommon(const SkPoint* pts, int count) { 732 for (int index = 0; index < count; ++index) { 733 this->outputScalar(pts[index].fX); 734 fClipStackData.appendf(", "); 735 this->outputScalar(pts[index].fY); 736 if (index + 1 < count) { 737 fClipStackData.appendf(", "); 738 } 739 } 740} 741 742void SkDebugCanvas::outputPoints(const SkPoint* pts, int count) { 743 this->outputPointsCommon(pts, count); 744 fClipStackData.appendf(");<br>"); 745} 746 747void SkDebugCanvas::outputConicPoints(const SkPoint* pts, SkScalar weight) { 748 this->outputPointsCommon(pts, 2); 749 fClipStackData.appendf(", "); 750 this->outputScalar(weight); 751 fClipStackData.appendf(");<br>"); 752} 753 754void SkDebugCanvas::addPathData(const SkPath& path, const char* pathName) { 755 SkPath::RawIter iter(path); 756 SkPath::FillType fillType = path.getFillType(); 757 fClipStackData.appendf("%sSkPath %s;<br>", kHTML4SpaceIndent, pathName); 758 fClipStackData.appendf("%s%s.setFillType(SkPath::%s);<br>", kHTML4SpaceIndent, pathName, 759 gFillTypeStrs[fillType]); 760 iter.setPath(path); 761 uint8_t verb; 762 SkPoint pts[4]; 763 while ((verb = iter.next(pts)) != SkPath::kDone_Verb) { 764 switch (verb) { 765 case SkPath::kMove_Verb: 766 fClipStackData.appendf("%s%s.moveTo(", kHTML4SpaceIndent, pathName); 767 this->outputPoints(&pts[0], 1); 768 continue; 769 case SkPath::kLine_Verb: 770 fClipStackData.appendf("%s%s.lineTo(", kHTML4SpaceIndent, pathName); 771 this->outputPoints(&pts[1], 1); 772 break; 773 case SkPath::kQuad_Verb: 774 fClipStackData.appendf("%s%s.quadTo(", kHTML4SpaceIndent, pathName); 775 this->outputPoints(&pts[1], 2); 776 break; 777 case SkPath::kConic_Verb: 778 fClipStackData.appendf("%s%s.conicTo(", kHTML4SpaceIndent, pathName); 779 this->outputConicPoints(&pts[1], iter.conicWeight()); 780 break; 781 case SkPath::kCubic_Verb: 782 fClipStackData.appendf("%s%s.cubicTo(", kHTML4SpaceIndent, pathName); 783 this->outputPoints(&pts[1], 3); 784 break; 785 case SkPath::kClose_Verb: 786 fClipStackData.appendf("%s%s.close();<br>", kHTML4SpaceIndent, pathName); 787 break; 788 default: 789 SkDEBUGFAIL("bad verb"); 790 return; 791 } 792 } 793} 794 795void SkDebugCanvas::addClipStackData(const SkPath& devPath, const SkPath& operand, 796 SkRegion::Op elementOp) { 797 if (elementOp == SkRegion::kReplace_Op) { 798 if (!lastClipStackData(devPath)) { 799 fSaveDevPath = operand; 800 } 801 fCalledAddStackData = false; 802 } else { 803 fClipStackData.appendf("<br>static void test(skiatest::Reporter* reporter," 804 " const char* filename) {<br>"); 805 addPathData(fCalledAddStackData ? devPath : fSaveDevPath, "path"); 806 addPathData(operand, "pathB"); 807 fClipStackData.appendf("%stestPathOp(reporter, path, pathB, %s, filename);<br>", 808 kHTML4SpaceIndent, gOpStrs[elementOp]); 809 fClipStackData.appendf("}<br>"); 810 fCalledAddStackData = true; 811 } 812} 813 814bool SkDebugCanvas::lastClipStackData(const SkPath& devPath) { 815 if (fCalledAddStackData) { 816 fClipStackData.appendf("<br>"); 817 addPathData(devPath, "pathOut"); 818 return true; 819 } 820 return false; 821} 822