SkDebugCanvas.cpp revision 9bcda719e87140dcb541356fdb3f589e145c9b8e
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* canvas, int index, int m) { 210 SkASSERT(!fCommandVector.isEmpty()); 211 SkASSERT(index < fCommandVector.count()); 212 213 int saveCount = canvas->save(); 214 215 SkRect windowRect = SkRect::MakeWH(SkIntToScalar(canvas->getBaseLayerSize().width()), 216 SkIntToScalar(canvas->getBaseLayerSize().height())); 217 218 bool pathOpsMode = getAllowSimplifyClip(); 219 canvas->setAllowSimplifyClip(pathOpsMode); 220 canvas->clear(SK_ColorWHITE); 221 canvas->resetMatrix(); 222 if (!windowRect.isEmpty()) { 223 canvas->clipRect(windowRect, kReplace_SkClipOp); 224 } 225 this->applyUserTransform(canvas); 226 227 DebugPaintFilterCanvas fPaintFilterCanvas(canvas, fOverdrawViz, 228 fOverrideFilterQuality, fFilterQuality); 229 canvas = &fPaintFilterCanvas; 230 231 if (fMegaVizMode) { 232 this->markActiveCommands(index); 233 } 234 235#if SK_SUPPORT_GPU 236 // If we have a GPU backend we can also visualize the op information 237 GrAuditTrail* at = nullptr; 238 if (fDrawGpuOpBounds || m != -1) { 239 at = this->getAuditTrail(canvas); 240 } 241#endif 242 243 for (int i = 0; i <= index; i++) { 244 if (i == index && fFilter) { 245 canvas->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 canvas->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(canvas); 267 } else { 268 fCommandVector[i]->setUserMatrix(fUserMatrix); 269 fCommandVector[i]->execute(canvas); 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 canvas->save(); 281 #define LARGE_COORD 1000000000 282 canvas->clipRect(SkRect::MakeLTRB(-LARGE_COORD, -LARGE_COORD, LARGE_COORD, LARGE_COORD), 283 kReverseDifference_SkClipOp); 284 SkPaint clipPaint; 285 clipPaint.setColor(fClipVizColor); 286 canvas->drawPaint(clipPaint); 287 canvas->restore(); 288 } 289 290 if (fMegaVizMode) { 291 canvas->save(); 292 // nuke the CTM 293 canvas->resetMatrix(); 294 // turn off clipping 295 if (!windowRect.isEmpty()) { 296 SkRect r = windowRect; 297 r.outset(SK_Scalar1, SK_Scalar1); 298 canvas->clipRect(r, kReplace_SkClipOp); 299 } 300 // visualize existing clips 301 SkDebugClipVisitor visitor(canvas); 302 303 canvas->replayClips(&visitor); 304 305 canvas->restore(); 306 } 307 if (pathOpsMode) { 308 this->resetClipStackData(); 309 const SkClipStack* clipStack = canvas->getClipStack(); 310 SkClipStack::Iter iter(*clipStack, SkClipStack::Iter::kBottom_IterStart); 311 const SkClipStack::Element* element; 312 SkPath devPath; 313 while ((element = iter.next())) { 314 SkClipStack::Element::Type type = element->getType(); 315 SkPath operand; 316 if (type != SkClipStack::Element::kEmpty_Type) { 317 element->asPath(&operand); 318 } 319 SkClipOp elementOp = element->getOp(); 320 this->addClipStackData(devPath, operand, elementOp); 321 if (elementOp == kReplace_SkClipOp) { 322 devPath = operand; 323 } else { 324 Op(devPath, operand, (SkPathOp) elementOp, &devPath); 325 } 326 } 327 this->lastClipStackData(devPath); 328 } 329 fMatrix = canvas->getTotalMatrix(); 330 if (!canvas->getClipDeviceBounds(&fClip)) { 331 fClip.setEmpty(); 332 } 333 334 canvas->restoreToCount(saveCount); 335 336#if SK_SUPPORT_GPU 337 // draw any ops if required and issue a full reset onto GrAuditTrail 338 if (at) { 339 // just in case there is global reordering, we flush the canvas before querying 340 // GrAuditTrail 341 GrAuditTrail::AutoEnable ae(at); 342 canvas->flush(); 343 344 // we pick three colorblind-safe colors, 75% alpha 345 static const SkColor kTotalBounds = SkColorSetARGB(0xC0, 0x6A, 0x3D, 0x9A); 346 static const SkColor kCommandOpBounds = SkColorSetARGB(0xC0, 0xE3, 0x1A, 0x1C); 347 static const SkColor kOtherOpBounds = SkColorSetARGB(0xC0, 0xFF, 0x7F, 0x00); 348 349 // get the render target of the top device so we can ignore ops drawn offscreen 350 GrRenderTargetContext* rtc = canvas->internal_private_accessTopLayerRenderTargetContext(); 351 GrGpuResource::UniqueID rtID = rtc->accessRenderTarget()->uniqueID(); 352 353 // get the bounding boxes to draw 354 SkTArray<GrAuditTrail::OpInfo> childrenBounds; 355 if (m == -1) { 356 at->getBoundsByClientID(&childrenBounds, index); 357 } else { 358 // the client wants us to draw the mth op 359 at->getBoundsByOpListID(&childrenBounds.push_back(), m); 360 } 361 SkPaint paint; 362 paint.setStyle(SkPaint::kStroke_Style); 363 paint.setStrokeWidth(1); 364 for (int i = 0; i < childrenBounds.count(); i++) { 365 if (childrenBounds[i].fRenderTargetUniqueID != rtID) { 366 // offscreen draw, ignore for now 367 continue; 368 } 369 paint.setColor(kTotalBounds); 370 canvas->drawRect(childrenBounds[i].fBounds, paint); 371 for (int j = 0; j < childrenBounds[i].fOps.count(); j++) { 372 const GrAuditTrail::OpInfo::Op& op = childrenBounds[i].fOps[j]; 373 if (op.fClientID != index) { 374 paint.setColor(kOtherOpBounds); 375 } else { 376 paint.setColor(kCommandOpBounds); 377 } 378 canvas->drawRect(op.fBounds, paint); 379 } 380 } 381 } 382#endif 383 this->cleanupAuditTrail(canvas); 384} 385 386void SkDebugCanvas::deleteDrawCommandAt(int index) { 387 SkASSERT(index < fCommandVector.count()); 388 delete fCommandVector[index]; 389 fCommandVector.remove(index); 390} 391 392SkDrawCommand* SkDebugCanvas::getDrawCommandAt(int index) { 393 SkASSERT(index < fCommandVector.count()); 394 return fCommandVector[index]; 395} 396 397void SkDebugCanvas::setDrawCommandAt(int index, SkDrawCommand* command) { 398 SkASSERT(index < fCommandVector.count()); 399 delete fCommandVector[index]; 400 fCommandVector[index] = command; 401} 402 403const SkTDArray<SkString*>* SkDebugCanvas::getCommandInfo(int index) const { 404 SkASSERT(index < fCommandVector.count()); 405 return fCommandVector[index]->Info(); 406} 407 408bool SkDebugCanvas::getDrawCommandVisibilityAt(int index) { 409 SkASSERT(index < fCommandVector.count()); 410 return fCommandVector[index]->isVisible(); 411} 412 413const SkTDArray <SkDrawCommand*>& SkDebugCanvas::getDrawCommands() const { 414 return fCommandVector; 415} 416 417SkTDArray <SkDrawCommand*>& SkDebugCanvas::getDrawCommands() { 418 return fCommandVector; 419} 420 421GrAuditTrail* SkDebugCanvas::getAuditTrail(SkCanvas* canvas) { 422 GrAuditTrail* at = nullptr; 423#if SK_SUPPORT_GPU 424 GrContext* ctx = canvas->getGrContext(); 425 if (ctx) { 426 at = ctx->getAuditTrail(); 427 } 428#endif 429 return at; 430} 431 432void SkDebugCanvas::drawAndCollectOps(int n, SkCanvas* canvas) { 433#if SK_SUPPORT_GPU 434 GrAuditTrail* at = this->getAuditTrail(canvas); 435 if (at) { 436 // loop over all of the commands and draw them, this is to collect reordering 437 // information 438 for (int i = 0; i < this->getSize() && i <= n; i++) { 439 GrAuditTrail::AutoCollectOps enable(at, i); 440 fCommandVector[i]->execute(canvas); 441 } 442 443 // in case there is some kind of global reordering 444 { 445 GrAuditTrail::AutoEnable ae(at); 446 canvas->flush(); 447 } 448 } 449#endif 450} 451 452void SkDebugCanvas::cleanupAuditTrail(SkCanvas* canvas) { 453 GrAuditTrail* at = this->getAuditTrail(canvas); 454 if (at) { 455#if SK_SUPPORT_GPU 456 GrAuditTrail::AutoEnable ae(at); 457 at->fullReset(); 458#endif 459 } 460} 461 462Json::Value SkDebugCanvas::toJSON(UrlDataManager& urlDataManager, int n, SkCanvas* canvas) { 463 this->drawAndCollectOps(n, canvas); 464 465 // now collect json 466#if SK_SUPPORT_GPU 467 GrAuditTrail* at = this->getAuditTrail(canvas); 468#endif 469 Json::Value result = Json::Value(Json::objectValue); 470 result[SKDEBUGCANVAS_ATTRIBUTE_VERSION] = Json::Value(SKDEBUGCANVAS_VERSION); 471 Json::Value commands = Json::Value(Json::arrayValue); 472 for (int i = 0; i < this->getSize() && i <= n; i++) { 473 commands[i] = this->getDrawCommandAt(i)->toJSON(urlDataManager); 474#if SK_SUPPORT_GPU 475 if (at) { 476 // TODO if this is inefficient we could add a method to GrAuditTrail which takes 477 // a Json::Value and is only compiled in this file 478 Json::Value parsedFromString; 479 Json::Reader reader; 480 SkAssertResult(reader.parse(at->toJson(i).c_str(), parsedFromString)); 481 482 commands[i][SKDEBUGCANVAS_ATTRIBUTE_AUDITTRAIL] = parsedFromString; 483 } 484#endif 485 } 486 this->cleanupAuditTrail(canvas); 487 result[SKDEBUGCANVAS_ATTRIBUTE_COMMANDS] = commands; 488 return result; 489} 490 491Json::Value SkDebugCanvas::toJSONOpList(int n, SkCanvas* canvas) { 492 this->drawAndCollectOps(n, canvas); 493 494 Json::Value parsedFromString; 495#if SK_SUPPORT_GPU 496 GrAuditTrail* at = this->getAuditTrail(canvas); 497 if (at) { 498 GrAuditTrail::AutoManageOpList enable(at); 499 Json::Reader reader; 500 SkAssertResult(reader.parse(at->toJson().c_str(), parsedFromString)); 501 } 502#endif 503 this->cleanupAuditTrail(canvas); 504 return parsedFromString; 505} 506 507void SkDebugCanvas::setOverdrawViz(bool overdrawViz) { 508 fOverdrawViz = overdrawViz; 509} 510 511void SkDebugCanvas::overrideTexFiltering(bool overrideTexFiltering, SkFilterQuality quality) { 512 fOverrideFilterQuality = overrideTexFiltering; 513 fFilterQuality = quality; 514} 515 516void SkDebugCanvas::onClipPath(const SkPath& path, SkClipOp op, ClipEdgeStyle edgeStyle) { 517 this->addDrawCommand(new SkClipPathCommand(path, op, kSoft_ClipEdgeStyle == edgeStyle)); 518} 519 520void SkDebugCanvas::onClipRect(const SkRect& rect, SkClipOp op, ClipEdgeStyle edgeStyle) { 521 this->addDrawCommand(new SkClipRectCommand(rect, op, kSoft_ClipEdgeStyle == edgeStyle)); 522} 523 524void SkDebugCanvas::onClipRRect(const SkRRect& rrect, SkClipOp op, ClipEdgeStyle edgeStyle) { 525 this->addDrawCommand(new SkClipRRectCommand(rrect, op, kSoft_ClipEdgeStyle == edgeStyle)); 526} 527 528void SkDebugCanvas::onClipRegion(const SkRegion& region, SkClipOp op) { 529 this->addDrawCommand(new SkClipRegionCommand(region, op)); 530} 531 532void SkDebugCanvas::didConcat(const SkMatrix& matrix) { 533 this->addDrawCommand(new SkConcatCommand(matrix)); 534 this->INHERITED::didConcat(matrix); 535} 536 537void SkDebugCanvas::onDrawAnnotation(const SkRect& rect, const char key[], SkData* value) { 538 this->addDrawCommand(new SkDrawAnnotationCommand(rect, key, sk_ref_sp(value))); 539} 540 541void SkDebugCanvas::onDrawBitmap(const SkBitmap& bitmap, SkScalar left, 542 SkScalar top, const SkPaint* paint) { 543 this->addDrawCommand(new SkDrawBitmapCommand(bitmap, left, top, paint)); 544} 545 546void SkDebugCanvas::onDrawBitmapRect(const SkBitmap& bitmap, const SkRect* src, const SkRect& dst, 547 const SkPaint* paint, SrcRectConstraint constraint) { 548 this->addDrawCommand(new SkDrawBitmapRectCommand(bitmap, src, dst, paint, 549 (SrcRectConstraint)constraint)); 550} 551 552void SkDebugCanvas::onDrawBitmapNine(const SkBitmap& bitmap, const SkIRect& center, 553 const SkRect& dst, const SkPaint* paint) { 554 this->addDrawCommand(new SkDrawBitmapNineCommand(bitmap, center, dst, paint)); 555} 556 557void SkDebugCanvas::onDrawImage(const SkImage* image, SkScalar left, SkScalar top, 558 const SkPaint* paint) { 559 this->addDrawCommand(new SkDrawImageCommand(image, left, top, paint)); 560} 561 562void SkDebugCanvas::onDrawImageRect(const SkImage* image, const SkRect* src, const SkRect& dst, 563 const SkPaint* paint, SrcRectConstraint constraint) { 564 this->addDrawCommand(new SkDrawImageRectCommand(image, src, dst, paint, constraint)); 565} 566 567void SkDebugCanvas::onDrawOval(const SkRect& oval, const SkPaint& paint) { 568 this->addDrawCommand(new SkDrawOvalCommand(oval, paint)); 569} 570 571void SkDebugCanvas::onDrawArc(const SkRect& oval, SkScalar startAngle, SkScalar sweepAngle, 572 bool useCenter, const SkPaint& paint) { 573 this->addDrawCommand(new SkDrawArcCommand(oval, startAngle, sweepAngle, useCenter, paint)); 574} 575 576void SkDebugCanvas::onDrawPaint(const SkPaint& paint) { 577 this->addDrawCommand(new SkDrawPaintCommand(paint)); 578} 579 580void SkDebugCanvas::onDrawPath(const SkPath& path, const SkPaint& paint) { 581 this->addDrawCommand(new SkDrawPathCommand(path, paint)); 582} 583 584void SkDebugCanvas::onDrawPicture(const SkPicture* picture, 585 const SkMatrix* matrix, 586 const SkPaint* paint) { 587 this->addDrawCommand(new SkBeginDrawPictureCommand(picture, matrix, paint)); 588 SkAutoCanvasMatrixPaint acmp(this, matrix, paint, picture->cullRect()); 589 picture->playback(this); 590 this->addDrawCommand(new SkEndDrawPictureCommand(SkToBool(matrix) || SkToBool(paint))); 591} 592 593void SkDebugCanvas::onDrawShadowedPicture(const SkPicture* picture, 594 const SkMatrix* matrix, 595 const SkPaint* paint, 596 const SkShadowParams& params) { 597 this->addDrawCommand(new SkBeginDrawShadowedPictureCommand(picture, matrix, paint, params)); 598 SkAutoCanvasMatrixPaint acmp(this, matrix, paint, picture->cullRect()); 599 picture->playback(this); 600 this->addDrawCommand(new SkEndDrawShadowedPictureCommand(SkToBool(matrix) || SkToBool(paint))); 601} 602 603void SkDebugCanvas::onDrawPoints(PointMode mode, size_t count, 604 const SkPoint pts[], const SkPaint& paint) { 605 this->addDrawCommand(new SkDrawPointsCommand(mode, count, pts, paint)); 606} 607 608void SkDebugCanvas::onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[], 609 const SkPaint& paint) { 610 this->addDrawCommand(new SkDrawPosTextCommand(text, byteLength, pos, paint)); 611} 612 613void SkDebugCanvas::onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[], 614 SkScalar constY, const SkPaint& paint) { 615 this->addDrawCommand( 616 new SkDrawPosTextHCommand(text, byteLength, xpos, constY, paint)); 617} 618 619void SkDebugCanvas::onDrawRect(const SkRect& rect, const SkPaint& paint) { 620 // NOTE(chudy): Messing up when renamed to DrawRect... Why? 621 addDrawCommand(new SkDrawRectCommand(rect, paint)); 622} 623 624void SkDebugCanvas::onDrawRRect(const SkRRect& rrect, const SkPaint& paint) { 625 this->addDrawCommand(new SkDrawRRectCommand(rrect, paint)); 626} 627 628void SkDebugCanvas::onDrawDRRect(const SkRRect& outer, const SkRRect& inner, 629 const SkPaint& paint) { 630 this->addDrawCommand(new SkDrawDRRectCommand(outer, inner, paint)); 631} 632 633void SkDebugCanvas::onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y, 634 const SkPaint& paint) { 635 this->addDrawCommand(new SkDrawTextCommand(text, byteLength, x, y, paint)); 636} 637 638void SkDebugCanvas::onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path, 639 const SkMatrix* matrix, const SkPaint& paint) { 640 this->addDrawCommand( 641 new SkDrawTextOnPathCommand(text, byteLength, path, matrix, paint)); 642} 643 644void SkDebugCanvas::onDrawTextRSXform(const void* text, size_t byteLength, const SkRSXform xform[], 645 const SkRect* cull, const SkPaint& paint) { 646 this->addDrawCommand(new SkDrawTextRSXformCommand(text, byteLength, xform, cull, paint)); 647} 648 649void SkDebugCanvas::onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y, 650 const SkPaint& paint) { 651 this->addDrawCommand(new SkDrawTextBlobCommand(sk_ref_sp(const_cast<SkTextBlob*>(blob)), 652 x, y, paint)); 653} 654 655void SkDebugCanvas::onDrawPatch(const SkPoint cubics[12], const SkColor colors[4], 656 const SkPoint texCoords[4], SkBlendMode bmode, 657 const SkPaint& paint) { 658 this->addDrawCommand(new SkDrawPatchCommand(cubics, colors, texCoords, bmode, paint)); 659} 660 661void SkDebugCanvas::onDrawVertices(VertexMode vmode, int vertexCount, const SkPoint vertices[], 662 const SkPoint texs[], const SkColor colors[], 663 SkBlendMode bmode, const uint16_t indices[], int indexCount, 664 const SkPaint& paint) { 665 this->addDrawCommand(new SkDrawVerticesCommand(vmode, vertexCount, vertices, 666 texs, colors, bmode, indices, indexCount, paint)); 667} 668 669void SkDebugCanvas::willRestore() { 670 this->addDrawCommand(new SkRestoreCommand()); 671 this->INHERITED::willRestore(); 672} 673 674void SkDebugCanvas::willSave() { 675 this->addDrawCommand(new SkSaveCommand()); 676 this->INHERITED::willSave(); 677} 678 679SkCanvas::SaveLayerStrategy SkDebugCanvas::getSaveLayerStrategy(const SaveLayerRec& rec) { 680 this->addDrawCommand(new SkSaveLayerCommand(rec)); 681 (void)this->INHERITED::getSaveLayerStrategy(rec); 682 // No need for a full layer. 683 return kNoLayer_SaveLayerStrategy; 684} 685 686void SkDebugCanvas::didSetMatrix(const SkMatrix& matrix) { 687 this->addDrawCommand(new SkSetMatrixCommand(matrix)); 688 this->INHERITED::didSetMatrix(matrix); 689} 690 691void SkDebugCanvas::didTranslateZ(SkScalar z) { 692#ifdef SK_EXPERIMENTAL_SHADOWING 693 this->addDrawCommand(new SkTranslateZCommand(z)); 694 this->INHERITED::didTranslateZ(z); 695#endif 696} 697 698void SkDebugCanvas::toggleCommand(int index, bool toggle) { 699 SkASSERT(index < fCommandVector.count()); 700 fCommandVector[index]->setVisible(toggle); 701} 702 703static const char* gFillTypeStrs[] = { 704 "kWinding_FillType", 705 "kEvenOdd_FillType", 706 "kInverseWinding_FillType", 707 "kInverseEvenOdd_FillType" 708}; 709 710static const char* gOpStrs[] = { 711 "kDifference_PathOp", 712 "kIntersect_PathOp", 713 "kUnion_PathOp", 714 "kXor_PathOp", 715 "kReverseDifference_PathOp", 716}; 717 718static const char kHTML4SpaceIndent[] = " "; 719 720void SkDebugCanvas::outputScalar(SkScalar num) { 721 if (num == (int) num) { 722 fClipStackData.appendf("%d", (int) num); 723 } else { 724 SkString str; 725 str.printf("%1.9g", num); 726 int width = (int) str.size(); 727 const char* cStr = str.c_str(); 728 while (cStr[width - 1] == '0') { 729 --width; 730 } 731 str.resize(width); 732 fClipStackData.appendf("%sf", str.c_str()); 733 } 734} 735 736void SkDebugCanvas::outputPointsCommon(const SkPoint* pts, int count) { 737 for (int index = 0; index < count; ++index) { 738 this->outputScalar(pts[index].fX); 739 fClipStackData.appendf(", "); 740 this->outputScalar(pts[index].fY); 741 if (index + 1 < count) { 742 fClipStackData.appendf(", "); 743 } 744 } 745} 746 747void SkDebugCanvas::outputPoints(const SkPoint* pts, int count) { 748 this->outputPointsCommon(pts, count); 749 fClipStackData.appendf(");<br>"); 750} 751 752void SkDebugCanvas::outputConicPoints(const SkPoint* pts, SkScalar weight) { 753 this->outputPointsCommon(pts, 2); 754 fClipStackData.appendf(", "); 755 this->outputScalar(weight); 756 fClipStackData.appendf(");<br>"); 757} 758 759void SkDebugCanvas::addPathData(const SkPath& path, const char* pathName) { 760 SkPath::RawIter iter(path); 761 SkPath::FillType fillType = path.getFillType(); 762 fClipStackData.appendf("%sSkPath %s;<br>", kHTML4SpaceIndent, pathName); 763 fClipStackData.appendf("%s%s.setFillType(SkPath::%s);<br>", kHTML4SpaceIndent, pathName, 764 gFillTypeStrs[fillType]); 765 iter.setPath(path); 766 uint8_t verb; 767 SkPoint pts[4]; 768 while ((verb = iter.next(pts)) != SkPath::kDone_Verb) { 769 switch (verb) { 770 case SkPath::kMove_Verb: 771 fClipStackData.appendf("%s%s.moveTo(", kHTML4SpaceIndent, pathName); 772 this->outputPoints(&pts[0], 1); 773 continue; 774 case SkPath::kLine_Verb: 775 fClipStackData.appendf("%s%s.lineTo(", kHTML4SpaceIndent, pathName); 776 this->outputPoints(&pts[1], 1); 777 break; 778 case SkPath::kQuad_Verb: 779 fClipStackData.appendf("%s%s.quadTo(", kHTML4SpaceIndent, pathName); 780 this->outputPoints(&pts[1], 2); 781 break; 782 case SkPath::kConic_Verb: 783 fClipStackData.appendf("%s%s.conicTo(", kHTML4SpaceIndent, pathName); 784 this->outputConicPoints(&pts[1], iter.conicWeight()); 785 break; 786 case SkPath::kCubic_Verb: 787 fClipStackData.appendf("%s%s.cubicTo(", kHTML4SpaceIndent, pathName); 788 this->outputPoints(&pts[1], 3); 789 break; 790 case SkPath::kClose_Verb: 791 fClipStackData.appendf("%s%s.close();<br>", kHTML4SpaceIndent, pathName); 792 break; 793 default: 794 SkDEBUGFAIL("bad verb"); 795 return; 796 } 797 } 798} 799 800void SkDebugCanvas::addClipStackData(const SkPath& devPath, const SkPath& operand, 801 SkClipOp elementOp) { 802 if (elementOp == kReplace_SkClipOp) { 803 if (!lastClipStackData(devPath)) { 804 fSaveDevPath = operand; 805 } 806 fCalledAddStackData = false; 807 } else { 808 fClipStackData.appendf("<br>static void test(skiatest::Reporter* reporter," 809 " const char* filename) {<br>"); 810 addPathData(fCalledAddStackData ? devPath : fSaveDevPath, "path"); 811 addPathData(operand, "pathB"); 812 fClipStackData.appendf("%stestPathOp(reporter, path, pathB, %s, filename);<br>", 813 kHTML4SpaceIndent, gOpStrs[static_cast<int>(elementOp)]); 814 fClipStackData.appendf("}<br>"); 815 fCalledAddStackData = true; 816 } 817} 818 819bool SkDebugCanvas::lastClipStackData(const SkPath& devPath) { 820 if (fCalledAddStackData) { 821 fClipStackData.appendf("<br>"); 822 addPathData(devPath, "pathOut"); 823 return true; 824 } 825 return false; 826} 827