SkDebugCanvas.cpp revision 4bf98e7e802edf43effec93bea22fecb031f65f1
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 "SkTextBlob.h" 14#include "SkClipOpPriv.h" 15 16#if SK_SUPPORT_GPU 17#include "GrAuditTrail.h" 18#include "GrContext.h" 19#include "GrRenderTargetContext.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(SkCanvas* canvas, 30 bool overdrawViz, 31 bool overrideFilterQuality, 32 SkFilterQuality quality) 33 : INHERITED(canvas) 34 , fOverdrawViz(overdrawViz) 35 , fOverrideFilterQuality(overrideFilterQuality) 36 , fFilterQuality(quality) {} 37 38protected: 39 bool onFilter(SkTCopyOnFirstWrite<SkPaint>* paint, Type) const override { 40 if (*paint) { 41 if (fOverdrawViz) { 42 paint->writable()->setColor(SK_ColorRED); 43 paint->writable()->setAlpha(0x08); 44 paint->writable()->setBlendMode(SkBlendMode::kSrcOver); 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 61 void onDrawShadowedPicture(const SkPicture* picture, 62 const SkMatrix* matrix, 63 const SkPaint* paint, 64 const SkShadowParams& params) { 65#ifdef SK_EXPERIMENTAL_SHADOWING 66 this->SkCanvas::onDrawShadowedPicture(picture, matrix, paint, params); 67#else 68 this->SkCanvas::onDrawPicture(picture, matrix, paint); 69#endif 70 } 71 72private: 73 bool fOverdrawViz; 74 bool fOverrideFilterQuality; 75 SkFilterQuality fFilterQuality; 76 77 typedef SkPaintFilterCanvas INHERITED; 78}; 79 80SkDebugCanvas::SkDebugCanvas(int width, int height) 81 : INHERITED(width, height) 82 , fPicture(nullptr) 83 , fFilter(false) 84 , fMegaVizMode(false) 85 , fOverdrawViz(false) 86 , fOverrideFilterQuality(false) 87 , fFilterQuality(kNone_SkFilterQuality) 88 , fClipVizColor(SK_ColorTRANSPARENT) 89 , fDrawGpuOpBounds(false) { 90 fUserMatrix.reset(); 91 92 // SkPicturePlayback uses the base-class' quickReject calls to cull clipped 93 // operations. This can lead to problems in the debugger which expects all 94 // the operations in the captured skp to appear in the debug canvas. To 95 // circumvent this we create a wide open clip here (an empty clip rect 96 // is not sufficient). 97 // Internally, the SkRect passed to clipRect is converted to an SkIRect and 98 // rounded out. The following code creates a nearly maximal rect that will 99 // not get collapsed by the coming conversions (Due to precision loss the 100 // inset has to be surprisingly large). 101 SkIRect largeIRect = SkIRect::MakeLargest(); 102 largeIRect.inset(1024, 1024); 103 SkRect large = SkRect::Make(largeIRect); 104#ifdef SK_DEBUG 105 SkASSERT(!large.roundOut().isEmpty()); 106#endif 107 // call the base class' version to avoid adding a draw command 108 this->INHERITED::onClipRect(large, kReplace_SkClipOp, kHard_ClipEdgeStyle); 109} 110 111SkDebugCanvas::~SkDebugCanvas() { 112 fCommandVector.deleteAll(); 113} 114 115void SkDebugCanvas::addDrawCommand(SkDrawCommand* command) { 116 fCommandVector.push(command); 117} 118 119void SkDebugCanvas::draw(SkCanvas* canvas) { 120 if (!fCommandVector.isEmpty()) { 121 this->drawTo(canvas, fCommandVector.count() - 1); 122 } 123} 124 125void SkDebugCanvas::applyUserTransform(SkCanvas* canvas) { 126 canvas->concat(fUserMatrix); 127} 128 129int SkDebugCanvas::getCommandAtPoint(int x, int y, int index) { 130 SkBitmap bitmap; 131 bitmap.allocPixels(SkImageInfo::MakeN32Premul(1, 1)); 132 133 SkCanvas canvas(bitmap); 134 canvas.translate(SkIntToScalar(-x), SkIntToScalar(-y)); 135 this->applyUserTransform(&canvas); 136 137 int layer = 0; 138 SkColor prev = bitmap.getColor(0,0); 139 for (int i = 0; i < index; i++) { 140 if (fCommandVector[i]->isVisible()) { 141 fCommandVector[i]->setUserMatrix(fUserMatrix); 142 fCommandVector[i]->execute(&canvas); 143 } 144 if (prev != bitmap.getColor(0,0)) { 145 layer = i; 146 } 147 prev = bitmap.getColor(0,0); 148 } 149 return layer; 150} 151 152class SkDebugClipVisitor : public SkCanvas::ClipVisitor { 153public: 154 SkDebugClipVisitor(SkCanvas* canvas) : fCanvas(canvas) {} 155 156 void clipRect(const SkRect& r, SkClipOp, bool doAA) override { 157 SkPaint p; 158 p.setColor(SK_ColorRED); 159 p.setStyle(SkPaint::kStroke_Style); 160 p.setAntiAlias(doAA); 161 fCanvas->drawRect(r, p); 162 } 163 void clipRRect(const SkRRect& rr, SkClipOp, bool doAA) override { 164 SkPaint p; 165 p.setColor(SK_ColorGREEN); 166 p.setStyle(SkPaint::kStroke_Style); 167 p.setAntiAlias(doAA); 168 fCanvas->drawRRect(rr, p); 169 } 170 void clipPath(const SkPath& path, SkClipOp, bool doAA) override { 171 SkPaint p; 172 p.setColor(SK_ColorBLUE); 173 p.setStyle(SkPaint::kStroke_Style); 174 p.setAntiAlias(doAA); 175 fCanvas->drawPath(path, p); 176 } 177 178protected: 179 SkCanvas* fCanvas; 180 181private: 182 typedef SkCanvas::ClipVisitor INHERITED; 183}; 184 185// set up the saveLayer commands so that the active ones 186// return true in their 'active' method 187void SkDebugCanvas::markActiveCommands(int index) { 188 fActiveLayers.rewind(); 189 190 for (int i = 0; i < fCommandVector.count(); ++i) { 191 fCommandVector[i]->setActive(false); 192 } 193 194 for (int i = 0; i < index; ++i) { 195 SkDrawCommand::Action result = fCommandVector[i]->action(); 196 if (SkDrawCommand::kPushLayer_Action == result) { 197 fActiveLayers.push(fCommandVector[i]); 198 } else if (SkDrawCommand::kPopLayer_Action == result) { 199 fActiveLayers.pop(); 200 } 201 } 202 203 for (int i = 0; i < fActiveLayers.count(); ++i) { 204 fActiveLayers[i]->setActive(true); 205 } 206 207} 208 209void SkDebugCanvas::drawTo(SkCanvas* originalCanvas, int index, int m) { 210 SkASSERT(!fCommandVector.isEmpty()); 211 SkASSERT(index < fCommandVector.count()); 212 213 int saveCount = originalCanvas->save(); 214 215 SkRect windowRect = SkRect::MakeWH(SkIntToScalar(originalCanvas->getBaseLayerSize().width()), 216 SkIntToScalar(originalCanvas->getBaseLayerSize().height())); 217 218 bool pathOpsMode = getAllowSimplifyClip(); 219 originalCanvas->setAllowSimplifyClip(pathOpsMode); 220 originalCanvas->clear(SK_ColorWHITE); 221 originalCanvas->resetMatrix(); 222 if (!windowRect.isEmpty()) { 223 originalCanvas->clipRect(windowRect, kReplace_SkClipOp); 224 } 225 this->applyUserTransform(originalCanvas); 226 227 DebugPaintFilterCanvas filterCanvas(originalCanvas, fOverdrawViz, fOverrideFilterQuality, 228 fFilterQuality); 229 230 if (fMegaVizMode) { 231 this->markActiveCommands(index); 232 } 233 234#if SK_SUPPORT_GPU 235 // If we have a GPU backend we can also visualize the op information 236 GrAuditTrail* at = nullptr; 237 if (fDrawGpuOpBounds || m != -1) { 238 // The audit trail must be obtained from the original canvas. 239 at = this->getAuditTrail(originalCanvas); 240 } 241#endif 242 243 for (int i = 0; i <= index; i++) { 244 if (i == index && fFilter) { 245 filterCanvas.clear(0xAAFFFFFF); 246 } 247 248#if SK_SUPPORT_GPU 249 // We need to flush any pending operations, or they might combine with commands below. 250 // Previous operations were not registered with the audit trail when they were 251 // created, so if we allow them to combine, the audit trail will fail to find them. 252 filterCanvas.flush(); 253 254 GrAuditTrail::AutoCollectOps* acb = nullptr; 255 if (at) { 256 acb = new GrAuditTrail::AutoCollectOps(at, i); 257 } 258#endif 259 260 if (fCommandVector[i]->isVisible()) { 261 if (fMegaVizMode && fCommandVector[i]->active()) { 262 // "active" commands execute their visualization behaviors: 263 // All active saveLayers get replaced with saves so all draws go to the 264 // visible canvas. 265 // All active culls draw their cull box 266 fCommandVector[i]->vizExecute(&filterCanvas); 267 } else { 268 fCommandVector[i]->setUserMatrix(fUserMatrix); 269 fCommandVector[i]->execute(&filterCanvas); 270 } 271 } 272#if SK_SUPPORT_GPU 273 if (at && acb) { 274 delete acb; 275 } 276#endif 277 } 278 279 if (SkColorGetA(fClipVizColor) != 0) { 280 filterCanvas.save(); 281 #define LARGE_COORD 1000000000 282 filterCanvas.clipRect( 283 SkRect::MakeLTRB(-LARGE_COORD, -LARGE_COORD, LARGE_COORD, LARGE_COORD), 284 kReverseDifference_SkClipOp); 285 SkPaint clipPaint; 286 clipPaint.setColor(fClipVizColor); 287 filterCanvas.drawPaint(clipPaint); 288 filterCanvas.restore(); 289 } 290 291 if (fMegaVizMode) { 292 filterCanvas.save(); 293 // nuke the CTM 294 filterCanvas.resetMatrix(); 295 // turn off clipping 296 if (!windowRect.isEmpty()) { 297 SkRect r = windowRect; 298 r.outset(SK_Scalar1, SK_Scalar1); 299 filterCanvas.clipRect(r, kReplace_SkClipOp); 300 } 301 // visualize existing clips 302 SkDebugClipVisitor visitor(&filterCanvas); 303 304 filterCanvas.replayClips(&visitor); 305 306 filterCanvas.restore(); 307 } 308 if (pathOpsMode) { 309 this->resetClipStackData(); 310 const SkClipStack* clipStack = filterCanvas.getClipStack(); 311 SkClipStack::Iter iter(*clipStack, SkClipStack::Iter::kBottom_IterStart); 312 const SkClipStack::Element* element; 313 SkPath devPath; 314 while ((element = iter.next())) { 315 SkClipStack::Element::Type type = element->getType(); 316 SkPath operand; 317 if (type != SkClipStack::Element::kEmpty_Type) { 318 element->asPath(&operand); 319 } 320 SkClipOp elementOp = element->getOp(); 321 this->addClipStackData(devPath, operand, elementOp); 322 if (elementOp == kReplace_SkClipOp) { 323 devPath = operand; 324 } else { 325 Op(devPath, operand, (SkPathOp) elementOp, &devPath); 326 } 327 } 328 this->lastClipStackData(devPath); 329 } 330 fMatrix = filterCanvas.getTotalMatrix(); 331 if (!filterCanvas.getClipDeviceBounds(&fClip)) { 332 fClip.setEmpty(); 333 } 334 335 filterCanvas.restoreToCount(saveCount); 336 337#if SK_SUPPORT_GPU 338 // draw any ops if required and issue a full reset onto GrAuditTrail 339 if (at) { 340 // just in case there is global reordering, we flush the canvas before querying 341 // GrAuditTrail 342 GrAuditTrail::AutoEnable ae(at); 343 filterCanvas.flush(); 344 345 // we pick three colorblind-safe colors, 75% alpha 346 static const SkColor kTotalBounds = SkColorSetARGB(0xC0, 0x6A, 0x3D, 0x9A); 347 static const SkColor kCommandOpBounds = SkColorSetARGB(0xC0, 0xE3, 0x1A, 0x1C); 348 static const SkColor kOtherOpBounds = SkColorSetARGB(0xC0, 0xFF, 0x7F, 0x00); 349 350 // get the render target of the top device (from the original canvas) so we can ignore ops 351 // drawn offscreen 352 GrRenderTargetContext* rtc = 353 originalCanvas->internal_private_accessTopLayerRenderTargetContext(); 354 GrGpuResource::UniqueID rtID = rtc->accessRenderTarget()->uniqueID(); 355 356 // get the bounding boxes to draw 357 SkTArray<GrAuditTrail::OpInfo> childrenBounds; 358 if (m == -1) { 359 at->getBoundsByClientID(&childrenBounds, index); 360 } else { 361 // the client wants us to draw the mth op 362 at->getBoundsByOpListID(&childrenBounds.push_back(), m); 363 } 364 SkPaint paint; 365 paint.setStyle(SkPaint::kStroke_Style); 366 paint.setStrokeWidth(1); 367 for (int i = 0; i < childrenBounds.count(); i++) { 368 if (childrenBounds[i].fRenderTargetUniqueID != rtID) { 369 // offscreen draw, ignore for now 370 continue; 371 } 372 paint.setColor(kTotalBounds); 373 filterCanvas.drawRect(childrenBounds[i].fBounds, paint); 374 for (int j = 0; j < childrenBounds[i].fOps.count(); j++) { 375 const GrAuditTrail::OpInfo::Op& op = childrenBounds[i].fOps[j]; 376 if (op.fClientID != index) { 377 paint.setColor(kOtherOpBounds); 378 } else { 379 paint.setColor(kCommandOpBounds); 380 } 381 filterCanvas.drawRect(op.fBounds, paint); 382 } 383 } 384 } 385#endif 386 this->cleanupAuditTrail(originalCanvas); 387} 388 389void SkDebugCanvas::deleteDrawCommandAt(int index) { 390 SkASSERT(index < fCommandVector.count()); 391 delete fCommandVector[index]; 392 fCommandVector.remove(index); 393} 394 395SkDrawCommand* SkDebugCanvas::getDrawCommandAt(int index) { 396 SkASSERT(index < fCommandVector.count()); 397 return fCommandVector[index]; 398} 399 400void SkDebugCanvas::setDrawCommandAt(int index, SkDrawCommand* command) { 401 SkASSERT(index < fCommandVector.count()); 402 delete fCommandVector[index]; 403 fCommandVector[index] = command; 404} 405 406const SkTDArray<SkString*>* SkDebugCanvas::getCommandInfo(int index) const { 407 SkASSERT(index < fCommandVector.count()); 408 return fCommandVector[index]->Info(); 409} 410 411bool SkDebugCanvas::getDrawCommandVisibilityAt(int index) { 412 SkASSERT(index < fCommandVector.count()); 413 return fCommandVector[index]->isVisible(); 414} 415 416const SkTDArray <SkDrawCommand*>& SkDebugCanvas::getDrawCommands() const { 417 return fCommandVector; 418} 419 420SkTDArray <SkDrawCommand*>& SkDebugCanvas::getDrawCommands() { 421 return fCommandVector; 422} 423 424GrAuditTrail* SkDebugCanvas::getAuditTrail(SkCanvas* canvas) { 425 GrAuditTrail* at = nullptr; 426#if SK_SUPPORT_GPU 427 GrContext* ctx = canvas->getGrContext(); 428 if (ctx) { 429 at = ctx->getAuditTrail(); 430 } 431#endif 432 return at; 433} 434 435void SkDebugCanvas::drawAndCollectOps(int n, SkCanvas* canvas) { 436#if SK_SUPPORT_GPU 437 GrAuditTrail* at = this->getAuditTrail(canvas); 438 if (at) { 439 // loop over all of the commands and draw them, this is to collect reordering 440 // information 441 for (int i = 0; i < this->getSize() && i <= n; i++) { 442 GrAuditTrail::AutoCollectOps enable(at, i); 443 fCommandVector[i]->execute(canvas); 444 } 445 446 // in case there is some kind of global reordering 447 { 448 GrAuditTrail::AutoEnable ae(at); 449 canvas->flush(); 450 } 451 } 452#endif 453} 454 455void SkDebugCanvas::cleanupAuditTrail(SkCanvas* canvas) { 456 GrAuditTrail* at = this->getAuditTrail(canvas); 457 if (at) { 458#if SK_SUPPORT_GPU 459 GrAuditTrail::AutoEnable ae(at); 460 at->fullReset(); 461#endif 462 } 463} 464 465Json::Value SkDebugCanvas::toJSON(UrlDataManager& urlDataManager, int n, SkCanvas* canvas) { 466 this->drawAndCollectOps(n, canvas); 467 468 // now collect json 469#if SK_SUPPORT_GPU 470 GrAuditTrail* at = this->getAuditTrail(canvas); 471#endif 472 Json::Value result = Json::Value(Json::objectValue); 473 result[SKDEBUGCANVAS_ATTRIBUTE_VERSION] = Json::Value(SKDEBUGCANVAS_VERSION); 474 Json::Value commands = Json::Value(Json::arrayValue); 475 for (int i = 0; i < this->getSize() && i <= n; i++) { 476 commands[i] = this->getDrawCommandAt(i)->toJSON(urlDataManager); 477#if SK_SUPPORT_GPU 478 if (at) { 479 // TODO if this is inefficient we could add a method to GrAuditTrail which takes 480 // a Json::Value and is only compiled in this file 481 Json::Value parsedFromString; 482 Json::Reader reader; 483 SkAssertResult(reader.parse(at->toJson(i).c_str(), parsedFromString)); 484 485 commands[i][SKDEBUGCANVAS_ATTRIBUTE_AUDITTRAIL] = parsedFromString; 486 } 487#endif 488 } 489 this->cleanupAuditTrail(canvas); 490 result[SKDEBUGCANVAS_ATTRIBUTE_COMMANDS] = commands; 491 return result; 492} 493 494Json::Value SkDebugCanvas::toJSONOpList(int n, SkCanvas* canvas) { 495 this->drawAndCollectOps(n, canvas); 496 497 Json::Value parsedFromString; 498#if SK_SUPPORT_GPU 499 GrAuditTrail* at = this->getAuditTrail(canvas); 500 if (at) { 501 GrAuditTrail::AutoManageOpList enable(at); 502 Json::Reader reader; 503 SkAssertResult(reader.parse(at->toJson().c_str(), parsedFromString)); 504 } 505#endif 506 this->cleanupAuditTrail(canvas); 507 return parsedFromString; 508} 509 510void SkDebugCanvas::setOverdrawViz(bool overdrawViz) { 511 fOverdrawViz = overdrawViz; 512} 513 514void SkDebugCanvas::overrideTexFiltering(bool overrideTexFiltering, SkFilterQuality quality) { 515 fOverrideFilterQuality = overrideTexFiltering; 516 fFilterQuality = quality; 517} 518 519void SkDebugCanvas::onClipPath(const SkPath& path, SkClipOp op, ClipEdgeStyle edgeStyle) { 520 this->addDrawCommand(new SkClipPathCommand(path, op, kSoft_ClipEdgeStyle == edgeStyle)); 521} 522 523void SkDebugCanvas::onClipRect(const SkRect& rect, SkClipOp op, ClipEdgeStyle edgeStyle) { 524 this->addDrawCommand(new SkClipRectCommand(rect, op, kSoft_ClipEdgeStyle == edgeStyle)); 525} 526 527void SkDebugCanvas::onClipRRect(const SkRRect& rrect, SkClipOp op, ClipEdgeStyle edgeStyle) { 528 this->addDrawCommand(new SkClipRRectCommand(rrect, op, kSoft_ClipEdgeStyle == edgeStyle)); 529} 530 531void SkDebugCanvas::onClipRegion(const SkRegion& region, SkClipOp op) { 532 this->addDrawCommand(new SkClipRegionCommand(region, op)); 533} 534 535void SkDebugCanvas::didConcat(const SkMatrix& matrix) { 536 this->addDrawCommand(new SkConcatCommand(matrix)); 537 this->INHERITED::didConcat(matrix); 538} 539 540void SkDebugCanvas::onDrawAnnotation(const SkRect& rect, const char key[], SkData* value) { 541 this->addDrawCommand(new SkDrawAnnotationCommand(rect, key, sk_ref_sp(value))); 542} 543 544void SkDebugCanvas::onDrawBitmap(const SkBitmap& bitmap, SkScalar left, 545 SkScalar top, const SkPaint* paint) { 546 this->addDrawCommand(new SkDrawBitmapCommand(bitmap, left, top, paint)); 547} 548 549void SkDebugCanvas::onDrawBitmapRect(const SkBitmap& bitmap, const SkRect* src, const SkRect& dst, 550 const SkPaint* paint, SrcRectConstraint constraint) { 551 this->addDrawCommand(new SkDrawBitmapRectCommand(bitmap, src, dst, paint, 552 (SrcRectConstraint)constraint)); 553} 554 555void SkDebugCanvas::onDrawBitmapNine(const SkBitmap& bitmap, const SkIRect& center, 556 const SkRect& dst, const SkPaint* paint) { 557 this->addDrawCommand(new SkDrawBitmapNineCommand(bitmap, center, dst, paint)); 558} 559 560void SkDebugCanvas::onDrawImage(const SkImage* image, SkScalar left, SkScalar top, 561 const SkPaint* paint) { 562 this->addDrawCommand(new SkDrawImageCommand(image, left, top, paint)); 563} 564 565void SkDebugCanvas::onDrawImageRect(const SkImage* image, const SkRect* src, const SkRect& dst, 566 const SkPaint* paint, SrcRectConstraint constraint) { 567 this->addDrawCommand(new SkDrawImageRectCommand(image, src, dst, paint, constraint)); 568} 569 570void SkDebugCanvas::onDrawOval(const SkRect& oval, const SkPaint& paint) { 571 this->addDrawCommand(new SkDrawOvalCommand(oval, paint)); 572} 573 574void SkDebugCanvas::onDrawArc(const SkRect& oval, SkScalar startAngle, SkScalar sweepAngle, 575 bool useCenter, const SkPaint& paint) { 576 this->addDrawCommand(new SkDrawArcCommand(oval, startAngle, sweepAngle, useCenter, paint)); 577} 578 579void SkDebugCanvas::onDrawPaint(const SkPaint& paint) { 580 this->addDrawCommand(new SkDrawPaintCommand(paint)); 581} 582 583void SkDebugCanvas::onDrawPath(const SkPath& path, const SkPaint& paint) { 584 this->addDrawCommand(new SkDrawPathCommand(path, paint)); 585} 586 587void SkDebugCanvas::onDrawPicture(const SkPicture* picture, 588 const SkMatrix* matrix, 589 const SkPaint* paint) { 590 this->addDrawCommand(new SkBeginDrawPictureCommand(picture, matrix, paint)); 591 SkAutoCanvasMatrixPaint acmp(this, matrix, paint, picture->cullRect()); 592 picture->playback(this); 593 this->addDrawCommand(new SkEndDrawPictureCommand(SkToBool(matrix) || SkToBool(paint))); 594} 595 596void SkDebugCanvas::onDrawShadowedPicture(const SkPicture* picture, 597 const SkMatrix* matrix, 598 const SkPaint* paint, 599 const SkShadowParams& params) { 600 this->addDrawCommand(new SkBeginDrawShadowedPictureCommand(picture, matrix, paint, params)); 601 SkAutoCanvasMatrixPaint acmp(this, matrix, paint, picture->cullRect()); 602 picture->playback(this); 603 this->addDrawCommand(new SkEndDrawShadowedPictureCommand(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(sk_ref_sp(const_cast<SkTextBlob*>(blob)), 655 x, y, paint)); 656} 657 658void SkDebugCanvas::onDrawPatch(const SkPoint cubics[12], const SkColor colors[4], 659 const SkPoint texCoords[4], SkBlendMode bmode, 660 const SkPaint& paint) { 661 this->addDrawCommand(new SkDrawPatchCommand(cubics, colors, texCoords, bmode, paint)); 662} 663 664void SkDebugCanvas::onDrawVertices(VertexMode vmode, int vertexCount, const SkPoint vertices[], 665 const SkPoint texs[], const SkColor colors[], 666 SkBlendMode bmode, const uint16_t indices[], int indexCount, 667 const SkPaint& paint) { 668 this->addDrawCommand(new SkDrawVerticesCommand(vmode, vertexCount, vertices, 669 texs, colors, bmode, indices, indexCount, paint)); 670} 671 672void SkDebugCanvas::willRestore() { 673 this->addDrawCommand(new SkRestoreCommand()); 674 this->INHERITED::willRestore(); 675} 676 677void SkDebugCanvas::willSave() { 678 this->addDrawCommand(new SkSaveCommand()); 679 this->INHERITED::willSave(); 680} 681 682SkCanvas::SaveLayerStrategy SkDebugCanvas::getSaveLayerStrategy(const SaveLayerRec& rec) { 683 this->addDrawCommand(new SkSaveLayerCommand(rec)); 684 (void)this->INHERITED::getSaveLayerStrategy(rec); 685 // No need for a full layer. 686 return kNoLayer_SaveLayerStrategy; 687} 688 689void SkDebugCanvas::didSetMatrix(const SkMatrix& matrix) { 690 this->addDrawCommand(new SkSetMatrixCommand(matrix)); 691 this->INHERITED::didSetMatrix(matrix); 692} 693 694void SkDebugCanvas::didTranslateZ(SkScalar z) { 695#ifdef SK_EXPERIMENTAL_SHADOWING 696 this->addDrawCommand(new SkTranslateZCommand(z)); 697 this->INHERITED::didTranslateZ(z); 698#endif 699} 700 701void SkDebugCanvas::toggleCommand(int index, bool toggle) { 702 SkASSERT(index < fCommandVector.count()); 703 fCommandVector[index]->setVisible(toggle); 704} 705 706static const char* gFillTypeStrs[] = { 707 "kWinding_FillType", 708 "kEvenOdd_FillType", 709 "kInverseWinding_FillType", 710 "kInverseEvenOdd_FillType" 711}; 712 713static const char* gOpStrs[] = { 714 "kDifference_PathOp", 715 "kIntersect_PathOp", 716 "kUnion_PathOp", 717 "kXor_PathOp", 718 "kReverseDifference_PathOp", 719}; 720 721static const char kHTML4SpaceIndent[] = " "; 722 723void SkDebugCanvas::outputScalar(SkScalar num) { 724 if (num == (int) num) { 725 fClipStackData.appendf("%d", (int) num); 726 } else { 727 SkString str; 728 str.printf("%1.9g", num); 729 int width = (int) str.size(); 730 const char* cStr = str.c_str(); 731 while (cStr[width - 1] == '0') { 732 --width; 733 } 734 str.resize(width); 735 fClipStackData.appendf("%sf", str.c_str()); 736 } 737} 738 739void SkDebugCanvas::outputPointsCommon(const SkPoint* pts, int count) { 740 for (int index = 0; index < count; ++index) { 741 this->outputScalar(pts[index].fX); 742 fClipStackData.appendf(", "); 743 this->outputScalar(pts[index].fY); 744 if (index + 1 < count) { 745 fClipStackData.appendf(", "); 746 } 747 } 748} 749 750void SkDebugCanvas::outputPoints(const SkPoint* pts, int count) { 751 this->outputPointsCommon(pts, count); 752 fClipStackData.appendf(");<br>"); 753} 754 755void SkDebugCanvas::outputConicPoints(const SkPoint* pts, SkScalar weight) { 756 this->outputPointsCommon(pts, 2); 757 fClipStackData.appendf(", "); 758 this->outputScalar(weight); 759 fClipStackData.appendf(");<br>"); 760} 761 762void SkDebugCanvas::addPathData(const SkPath& path, const char* pathName) { 763 SkPath::RawIter iter(path); 764 SkPath::FillType fillType = path.getFillType(); 765 fClipStackData.appendf("%sSkPath %s;<br>", kHTML4SpaceIndent, pathName); 766 fClipStackData.appendf("%s%s.setFillType(SkPath::%s);<br>", kHTML4SpaceIndent, pathName, 767 gFillTypeStrs[fillType]); 768 iter.setPath(path); 769 uint8_t verb; 770 SkPoint pts[4]; 771 while ((verb = iter.next(pts)) != SkPath::kDone_Verb) { 772 switch (verb) { 773 case SkPath::kMove_Verb: 774 fClipStackData.appendf("%s%s.moveTo(", kHTML4SpaceIndent, pathName); 775 this->outputPoints(&pts[0], 1); 776 continue; 777 case SkPath::kLine_Verb: 778 fClipStackData.appendf("%s%s.lineTo(", kHTML4SpaceIndent, pathName); 779 this->outputPoints(&pts[1], 1); 780 break; 781 case SkPath::kQuad_Verb: 782 fClipStackData.appendf("%s%s.quadTo(", kHTML4SpaceIndent, pathName); 783 this->outputPoints(&pts[1], 2); 784 break; 785 case SkPath::kConic_Verb: 786 fClipStackData.appendf("%s%s.conicTo(", kHTML4SpaceIndent, pathName); 787 this->outputConicPoints(&pts[1], iter.conicWeight()); 788 break; 789 case SkPath::kCubic_Verb: 790 fClipStackData.appendf("%s%s.cubicTo(", kHTML4SpaceIndent, pathName); 791 this->outputPoints(&pts[1], 3); 792 break; 793 case SkPath::kClose_Verb: 794 fClipStackData.appendf("%s%s.close();<br>", kHTML4SpaceIndent, pathName); 795 break; 796 default: 797 SkDEBUGFAIL("bad verb"); 798 return; 799 } 800 } 801} 802 803void SkDebugCanvas::addClipStackData(const SkPath& devPath, const SkPath& operand, 804 SkClipOp elementOp) { 805 if (elementOp == kReplace_SkClipOp) { 806 if (!lastClipStackData(devPath)) { 807 fSaveDevPath = operand; 808 } 809 fCalledAddStackData = false; 810 } else { 811 fClipStackData.appendf("<br>static void test(skiatest::Reporter* reporter," 812 " const char* filename) {<br>"); 813 addPathData(fCalledAddStackData ? devPath : fSaveDevPath, "path"); 814 addPathData(operand, "pathB"); 815 fClipStackData.appendf("%stestPathOp(reporter, path, pathB, %s, filename);<br>", 816 kHTML4SpaceIndent, gOpStrs[static_cast<int>(elementOp)]); 817 fClipStackData.appendf("}<br>"); 818 fCalledAddStackData = true; 819 } 820} 821 822bool SkDebugCanvas::lastClipStackData(const SkPath& devPath) { 823 if (fCalledAddStackData) { 824 fClipStackData.appendf("<br>"); 825 addPathData(devPath, "pathOut"); 826 return true; 827 } 828 return false; 829} 830