RecordingCanvas.cpp revision 6f485569fa3d6047dcffd068aebf361e3598783c
1/* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include "RecordingCanvas.h" 18 19#include "DeferredLayerUpdater.h" 20#include "RecordedOp.h" 21#include "RenderNode.h" 22#include "VectorDrawable.h" 23 24namespace android { 25namespace uirenderer { 26 27RecordingCanvas::RecordingCanvas(size_t width, size_t height) 28 : mState(*this) 29 , mResourceCache(ResourceCache::getInstance()) { 30 resetRecording(width, height); 31} 32 33RecordingCanvas::~RecordingCanvas() { 34 LOG_ALWAYS_FATAL_IF(mDisplayList, 35 "Destroyed a RecordingCanvas during a record!"); 36} 37 38void RecordingCanvas::resetRecording(int width, int height) { 39 LOG_ALWAYS_FATAL_IF(mDisplayList, 40 "prepareDirty called a second time during a recording!"); 41 mDisplayList = new DisplayList(); 42 43 mState.initializeRecordingSaveStack(width, height); 44 45 mDeferredBarrierType = DeferredBarrierType::InOrder; 46 mState.setDirtyClip(false); 47} 48 49DisplayList* RecordingCanvas::finishRecording() { 50 restoreToCount(1); 51 mPaintMap.clear(); 52 mRegionMap.clear(); 53 mPathMap.clear(); 54 DisplayList* displayList = mDisplayList; 55 mDisplayList = nullptr; 56 mSkiaCanvasProxy.reset(nullptr); 57 return displayList; 58} 59 60SkCanvas* RecordingCanvas::asSkCanvas() { 61 LOG_ALWAYS_FATAL_IF(!mDisplayList, 62 "attempting to get an SkCanvas when we are not recording!"); 63 if (!mSkiaCanvasProxy) { 64 mSkiaCanvasProxy.reset(new SkiaCanvasProxy(this)); 65 } 66 67 // SkCanvas instances default to identity transform, but should inherit 68 // the state of this Canvas; if this code was in the SkiaCanvasProxy 69 // constructor, we couldn't cache mSkiaCanvasProxy. 70 SkMatrix parentTransform; 71 getMatrix(&parentTransform); 72 mSkiaCanvasProxy.get()->setMatrix(parentTransform); 73 74 return mSkiaCanvasProxy.get(); 75} 76 77// ---------------------------------------------------------------------------- 78// CanvasStateClient implementation 79// ---------------------------------------------------------------------------- 80 81void RecordingCanvas::onViewportInitialized() { 82} 83 84void RecordingCanvas::onSnapshotRestored(const Snapshot& removed, const Snapshot& restored) { 85 if (removed.flags & Snapshot::kFlagIsFboLayer) { 86 addOp(new (alloc()) EndLayerOp()); 87 } else if (removed.flags & Snapshot::kFlagIsLayer) { 88 addOp(new (alloc()) EndUnclippedLayerOp()); 89 } 90} 91 92// ---------------------------------------------------------------------------- 93// android/graphics/Canvas state operations 94// ---------------------------------------------------------------------------- 95// Save (layer) 96int RecordingCanvas::save(SaveFlags::Flags flags) { 97 return mState.save((int) flags); 98} 99 100void RecordingCanvas::RecordingCanvas::restore() { 101 mState.restore(); 102} 103 104void RecordingCanvas::restoreToCount(int saveCount) { 105 mState.restoreToCount(saveCount); 106} 107 108int RecordingCanvas::saveLayer(float left, float top, float right, float bottom, 109 const SkPaint* paint, SaveFlags::Flags flags) { 110 // force matrix/clip isolation for layer 111 flags |= SaveFlags::MatrixClip; 112 bool clippedLayer = flags & SaveFlags::ClipToLayer; 113 114 const Snapshot& previous = *mState.currentSnapshot(); 115 116 // initialize the snapshot as though it almost represents an FBO layer so deferred draw 117 // operations will be able to store and restore the current clip and transform info, and 118 // quick rejection will be correct (for display lists) 119 120 const Rect unmappedBounds(left, top, right, bottom); 121 122 // determine clipped bounds relative to previous viewport. 123 Rect visibleBounds = unmappedBounds; 124 previous.transform->mapRect(visibleBounds); 125 126 if (CC_UNLIKELY(!clippedLayer 127 && previous.transform->rectToRect() 128 && visibleBounds.contains(previous.getRenderTargetClip()))) { 129 // unlikely case where an unclipped savelayer is recorded with a clip it can use, 130 // as none of its unaffected/unclipped area is visible 131 clippedLayer = true; 132 flags |= SaveFlags::ClipToLayer; 133 } 134 135 visibleBounds.doIntersect(previous.getRenderTargetClip()); 136 visibleBounds.snapToPixelBoundaries(); 137 visibleBounds.doIntersect(Rect(previous.getViewportWidth(), previous.getViewportHeight())); 138 139 // Map visible bounds back to layer space, and intersect with parameter bounds 140 Rect layerBounds = visibleBounds; 141 Matrix4 inverse; 142 inverse.loadInverse(*previous.transform); 143 inverse.mapRect(layerBounds); 144 layerBounds.doIntersect(unmappedBounds); 145 146 int saveValue = mState.save((int) flags); 147 Snapshot& snapshot = *mState.writableSnapshot(); 148 149 // layerBounds is in original bounds space, but clipped by current recording clip 150 if (layerBounds.isEmpty() || unmappedBounds.isEmpty()) { 151 // Don't bother recording layer, since it's been rejected 152 if (CC_LIKELY(clippedLayer)) { 153 snapshot.resetClip(0, 0, 0, 0); 154 } 155 return saveValue; 156 } 157 158 if (CC_LIKELY(clippedLayer)) { 159 auto previousClip = getRecordedClip(); // note: done before new snapshot's clip has changed 160 161 snapshot.flags |= Snapshot::kFlagIsLayer | Snapshot::kFlagIsFboLayer; 162 snapshot.initializeViewport(unmappedBounds.getWidth(), unmappedBounds.getHeight()); 163 snapshot.transform->loadTranslate(-unmappedBounds.left, -unmappedBounds.top, 0.0f); 164 165 Rect clip = layerBounds; 166 clip.translate(-unmappedBounds.left, -unmappedBounds.top); 167 snapshot.resetClip(clip.left, clip.top, clip.right, clip.bottom); 168 snapshot.roundRectClipState = nullptr; 169 170 addOp(new (alloc()) BeginLayerOp( 171 unmappedBounds, 172 *previous.transform, // transform to *draw* with 173 previousClip, // clip to *draw* with 174 refPaint(paint))); 175 } else { 176 snapshot.flags |= Snapshot::kFlagIsLayer; 177 178 addOp(new (alloc()) BeginUnclippedLayerOp( 179 unmappedBounds, 180 *mState.currentSnapshot()->transform, 181 getRecordedClip(), 182 refPaint(paint))); 183 } 184 185 return saveValue; 186} 187 188// Matrix 189void RecordingCanvas::rotate(float degrees) { 190 if (degrees == 0) return; 191 192 mState.rotate(degrees); 193} 194 195void RecordingCanvas::scale(float sx, float sy) { 196 if (sx == 1 && sy == 1) return; 197 198 mState.scale(sx, sy); 199} 200 201void RecordingCanvas::skew(float sx, float sy) { 202 mState.skew(sx, sy); 203} 204 205void RecordingCanvas::translate(float dx, float dy) { 206 if (dx == 0 && dy == 0) return; 207 208 mState.translate(dx, dy, 0); 209} 210 211// Clip 212bool RecordingCanvas::getClipBounds(SkRect* outRect) const { 213 *outRect = mState.getLocalClipBounds().toSkRect(); 214 return !(outRect->isEmpty()); 215} 216bool RecordingCanvas::quickRejectRect(float left, float top, float right, float bottom) const { 217 return mState.quickRejectConservative(left, top, right, bottom); 218} 219bool RecordingCanvas::quickRejectPath(const SkPath& path) const { 220 SkRect bounds = path.getBounds(); 221 return mState.quickRejectConservative(bounds.fLeft, bounds.fTop, bounds.fRight, bounds.fBottom); 222} 223bool RecordingCanvas::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 224 return mState.clipRect(left, top, right, bottom, op); 225} 226bool RecordingCanvas::clipPath(const SkPath* path, SkRegion::Op op) { 227 return mState.clipPath(path, op); 228} 229bool RecordingCanvas::clipRegion(const SkRegion* region, SkRegion::Op op) { 230 return mState.clipRegion(region, op); 231} 232 233// ---------------------------------------------------------------------------- 234// android/graphics/Canvas draw operations 235// ---------------------------------------------------------------------------- 236void RecordingCanvas::drawColor(int color, SkXfermode::Mode mode) { 237 SkPaint paint; 238 paint.setColor(color); 239 paint.setXfermodeMode(mode); 240 drawPaint(paint); 241} 242 243void RecordingCanvas::drawPaint(const SkPaint& paint) { 244 addOp(new (alloc()) RectOp( 245 mState.getRenderTargetClipBounds(), // OK, since we've not passed transform 246 Matrix4::identity(), 247 getRecordedClip(), 248 refPaint(&paint))); 249} 250 251static Rect calcBoundsOfPoints(const float* points, int floatCount) { 252 Rect unmappedBounds(points[0], points[1], points[0], points[1]); 253 for (int i = 2; i < floatCount; i += 2) { 254 unmappedBounds.expandToCover(points[i], points[i + 1]); 255 } 256 return unmappedBounds; 257} 258 259// Geometry 260void RecordingCanvas::drawPoints(const float* points, int floatCount, const SkPaint& paint) { 261 if (floatCount < 2) return; 262 floatCount &= ~0x1; // round down to nearest two 263 264 addOp(new (alloc()) PointsOp( 265 calcBoundsOfPoints(points, floatCount), 266 *mState.currentSnapshot()->transform, 267 getRecordedClip(), 268 refPaint(&paint), refBuffer<float>(points, floatCount), floatCount)); 269} 270 271void RecordingCanvas::drawLines(const float* points, int floatCount, const SkPaint& paint) { 272 if (floatCount < 4) return; 273 floatCount &= ~0x3; // round down to nearest four 274 275 addOp(new (alloc()) LinesOp( 276 calcBoundsOfPoints(points, floatCount), 277 *mState.currentSnapshot()->transform, 278 getRecordedClip(), 279 refPaint(&paint), refBuffer<float>(points, floatCount), floatCount)); 280} 281 282void RecordingCanvas::drawRect(float left, float top, float right, float bottom, const SkPaint& paint) { 283 addOp(new (alloc()) RectOp( 284 Rect(left, top, right, bottom), 285 *(mState.currentSnapshot()->transform), 286 getRecordedClip(), 287 refPaint(&paint))); 288} 289 290void RecordingCanvas::drawSimpleRects(const float* rects, int vertexCount, const SkPaint* paint) { 291 if (rects == nullptr) return; 292 293 Vertex* rectData = (Vertex*) mDisplayList->allocator.alloc(vertexCount * sizeof(Vertex)); 294 Vertex* vertex = rectData; 295 296 float left = FLT_MAX; 297 float top = FLT_MAX; 298 float right = FLT_MIN; 299 float bottom = FLT_MIN; 300 for (int index = 0; index < vertexCount; index += 4) { 301 float l = rects[index + 0]; 302 float t = rects[index + 1]; 303 float r = rects[index + 2]; 304 float b = rects[index + 3]; 305 306 Vertex::set(vertex++, l, t); 307 Vertex::set(vertex++, r, t); 308 Vertex::set(vertex++, l, b); 309 Vertex::set(vertex++, r, b); 310 311 left = std::min(left, l); 312 top = std::min(top, t); 313 right = std::max(right, r); 314 bottom = std::max(bottom, b); 315 } 316 addOp(new (alloc()) SimpleRectsOp( 317 Rect(left, top, right, bottom), 318 *(mState.currentSnapshot()->transform), 319 getRecordedClip(), 320 refPaint(paint), rectData, vertexCount)); 321} 322 323void RecordingCanvas::drawRegion(const SkRegion& region, const SkPaint& paint) { 324 if (paint.getStyle() == SkPaint::kFill_Style 325 && (!paint.isAntiAlias() || mState.currentTransform()->isSimple())) { 326 int count = 0; 327 Vector<float> rects; 328 SkRegion::Iterator it(region); 329 while (!it.done()) { 330 const SkIRect& r = it.rect(); 331 rects.push(r.fLeft); 332 rects.push(r.fTop); 333 rects.push(r.fRight); 334 rects.push(r.fBottom); 335 count += 4; 336 it.next(); 337 } 338 drawSimpleRects(rects.array(), count, &paint); 339 } else { 340 SkRegion::Iterator it(region); 341 while (!it.done()) { 342 const SkIRect& r = it.rect(); 343 drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint); 344 it.next(); 345 } 346 } 347} 348void RecordingCanvas::drawRoundRect(float left, float top, float right, float bottom, 349 float rx, float ry, const SkPaint& paint) { 350 addOp(new (alloc()) RoundRectOp( 351 Rect(left, top, right, bottom), 352 *(mState.currentSnapshot()->transform), 353 getRecordedClip(), 354 refPaint(&paint), rx, ry)); 355} 356 357void RecordingCanvas::drawRoundRect( 358 CanvasPropertyPrimitive* left, CanvasPropertyPrimitive* top, 359 CanvasPropertyPrimitive* right, CanvasPropertyPrimitive* bottom, 360 CanvasPropertyPrimitive* rx, CanvasPropertyPrimitive* ry, 361 CanvasPropertyPaint* paint) { 362 mDisplayList->ref(left); 363 mDisplayList->ref(top); 364 mDisplayList->ref(right); 365 mDisplayList->ref(bottom); 366 mDisplayList->ref(rx); 367 mDisplayList->ref(ry); 368 mDisplayList->ref(paint); 369 refBitmapsInShader(paint->value.getShader()); 370 addOp(new (alloc()) RoundRectPropsOp( 371 *(mState.currentSnapshot()->transform), 372 getRecordedClip(), 373 &paint->value, 374 &left->value, &top->value, &right->value, &bottom->value, 375 &rx->value, &ry->value)); 376} 377 378void RecordingCanvas::drawCircle(float x, float y, float radius, const SkPaint& paint) { 379 // TODO: move to Canvas.h 380 if (radius <= 0) return; 381 drawOval(x - radius, y - radius, x + radius, y + radius, paint); 382} 383 384void RecordingCanvas::drawCircle( 385 CanvasPropertyPrimitive* x, CanvasPropertyPrimitive* y, 386 CanvasPropertyPrimitive* radius, CanvasPropertyPaint* paint) { 387 mDisplayList->ref(x); 388 mDisplayList->ref(y); 389 mDisplayList->ref(radius); 390 mDisplayList->ref(paint); 391 refBitmapsInShader(paint->value.getShader()); 392 addOp(new (alloc()) CirclePropsOp( 393 *(mState.currentSnapshot()->transform), 394 getRecordedClip(), 395 &paint->value, 396 &x->value, &y->value, &radius->value)); 397} 398 399void RecordingCanvas::drawOval(float left, float top, float right, float bottom, const SkPaint& paint) { 400 addOp(new (alloc()) OvalOp( 401 Rect(left, top, right, bottom), 402 *(mState.currentSnapshot()->transform), 403 getRecordedClip(), 404 refPaint(&paint))); 405} 406 407void RecordingCanvas::drawArc(float left, float top, float right, float bottom, 408 float startAngle, float sweepAngle, bool useCenter, const SkPaint& paint) { 409 addOp(new (alloc()) ArcOp( 410 Rect(left, top, right, bottom), 411 *(mState.currentSnapshot()->transform), 412 getRecordedClip(), 413 refPaint(&paint), 414 startAngle, sweepAngle, useCenter)); 415} 416 417void RecordingCanvas::drawPath(const SkPath& path, const SkPaint& paint) { 418 addOp(new (alloc()) PathOp( 419 Rect(path.getBounds()), 420 *(mState.currentSnapshot()->transform), 421 getRecordedClip(), 422 refPaint(&paint), refPath(&path))); 423} 424 425void RecordingCanvas::drawVectorDrawable(VectorDrawableRoot* tree) { 426 mDisplayList->ref(tree); 427 addOp(new (alloc()) VectorDrawableOp( 428 tree, 429 Rect(tree->getBounds()), 430 *(mState.currentSnapshot()->transform), 431 getRecordedClip())); 432} 433 434// Bitmap-based 435void RecordingCanvas::drawBitmap(const SkBitmap& bitmap, float left, float top, const SkPaint* paint) { 436 save(SaveFlags::Matrix); 437 translate(left, top); 438 drawBitmap(&bitmap, paint); 439 restore(); 440} 441 442void RecordingCanvas::drawBitmap(const SkBitmap& bitmap, const SkMatrix& matrix, 443 const SkPaint* paint) { 444 if (matrix.isIdentity()) { 445 drawBitmap(&bitmap, paint); 446 } else if (!(matrix.getType() & ~(SkMatrix::kScale_Mask | SkMatrix::kTranslate_Mask)) 447 && MathUtils::isPositive(matrix.getScaleX()) 448 && MathUtils::isPositive(matrix.getScaleY())) { 449 // SkMatrix::isScaleTranslate() not available in L 450 SkRect src; 451 SkRect dst; 452 bitmap.getBounds(&src); 453 matrix.mapRect(&dst, src); 454 drawBitmap(bitmap, src.fLeft, src.fTop, src.fRight, src.fBottom, 455 dst.fLeft, dst.fTop, dst.fRight, dst.fBottom, paint); 456 } else { 457 save(SaveFlags::Matrix); 458 concat(matrix); 459 drawBitmap(&bitmap, paint); 460 restore(); 461 } 462} 463 464void RecordingCanvas::drawBitmap(const SkBitmap& bitmap, float srcLeft, float srcTop, 465 float srcRight, float srcBottom, float dstLeft, float dstTop, 466 float dstRight, float dstBottom, const SkPaint* paint) { 467 if (srcLeft == 0 && srcTop == 0 468 && srcRight == bitmap.width() 469 && srcBottom == bitmap.height() 470 && (srcBottom - srcTop == dstBottom - dstTop) 471 && (srcRight - srcLeft == dstRight - dstLeft)) { 472 // transform simple rect to rect drawing case into position bitmap ops, since they merge 473 save(SaveFlags::Matrix); 474 translate(dstLeft, dstTop); 475 drawBitmap(&bitmap, paint); 476 restore(); 477 } else { 478 addOp(new (alloc()) BitmapRectOp( 479 Rect(dstLeft, dstTop, dstRight, dstBottom), 480 *(mState.currentSnapshot()->transform), 481 getRecordedClip(), 482 refPaint(paint), refBitmap(bitmap), 483 Rect(srcLeft, srcTop, srcRight, srcBottom))); 484 } 485} 486 487void RecordingCanvas::drawBitmapMesh(const SkBitmap& bitmap, int meshWidth, int meshHeight, 488 const float* vertices, const int* colors, const SkPaint* paint) { 489 int vertexCount = (meshWidth + 1) * (meshHeight + 1); 490 addOp(new (alloc()) BitmapMeshOp( 491 calcBoundsOfPoints(vertices, vertexCount * 2), 492 *(mState.currentSnapshot()->transform), 493 getRecordedClip(), 494 refPaint(paint), refBitmap(bitmap), meshWidth, meshHeight, 495 refBuffer<float>(vertices, vertexCount * 2), // 2 floats per vertex 496 refBuffer<int>(colors, vertexCount))); // 1 color per vertex 497} 498 499void RecordingCanvas::drawNinePatch(const SkBitmap& bitmap, const android::Res_png_9patch& patch, 500 float dstLeft, float dstTop, float dstRight, float dstBottom, 501 const SkPaint* paint) { 502 addOp(new (alloc()) PatchOp( 503 Rect(dstLeft, dstTop, dstRight, dstBottom), 504 *(mState.currentSnapshot()->transform), 505 getRecordedClip(), 506 refPaint(paint), refBitmap(bitmap), refPatch(&patch))); 507} 508 509// Text 510void RecordingCanvas::drawText(const uint16_t* glyphs, const float* positions, int glyphCount, 511 const SkPaint& paint, float x, float y, float boundsLeft, float boundsTop, 512 float boundsRight, float boundsBottom, float totalAdvance) { 513 if (!glyphs || !positions || glyphCount <= 0 || PaintUtils::paintWillNotDrawText(paint)) return; 514 glyphs = refBuffer<glyph_t>(glyphs, glyphCount); 515 positions = refBuffer<float>(positions, glyphCount * 2); 516 517 // TODO: either must account for text shadow in bounds, or record separate ops for text shadows 518 addOp(new (alloc()) TextOp( 519 Rect(boundsLeft, boundsTop, boundsRight, boundsBottom), 520 *(mState.currentSnapshot()->transform), 521 getRecordedClip(), 522 refPaint(&paint), glyphs, positions, glyphCount, x, y)); 523 drawTextDecorations(x, y, totalAdvance, paint); 524} 525 526void RecordingCanvas::drawTextOnPath(const uint16_t* glyphs, int glyphCount, const SkPath& path, 527 float hOffset, float vOffset, const SkPaint& paint) { 528 if (!glyphs || glyphCount <= 0 || PaintUtils::paintWillNotDrawText(paint)) return; 529 glyphs = refBuffer<glyph_t>(glyphs, glyphCount); 530 addOp(new (alloc()) TextOnPathOp( 531 mState.getLocalClipBounds(), // TODO: explicitly define bounds 532 *(mState.currentSnapshot()->transform), 533 getRecordedClip(), 534 refPaint(&paint), glyphs, glyphCount, refPath(&path), hOffset, vOffset)); 535} 536 537void RecordingCanvas::drawBitmap(const SkBitmap* bitmap, const SkPaint* paint) { 538 addOp(new (alloc()) BitmapOp( 539 Rect(bitmap->width(), bitmap->height()), 540 *(mState.currentSnapshot()->transform), 541 getRecordedClip(), 542 refPaint(paint), refBitmap(*bitmap))); 543} 544 545void RecordingCanvas::drawRenderNode(RenderNode* renderNode) { 546 auto&& stagingProps = renderNode->stagingProperties(); 547 RenderNodeOp* op = new (alloc()) RenderNodeOp( 548 Rect(stagingProps.getWidth(), stagingProps.getHeight()), 549 *(mState.currentSnapshot()->transform), 550 getRecordedClip(), 551 renderNode); 552 int opIndex = addOp(op); 553 int childIndex = mDisplayList->addChild(op); 554 555 // update the chunk's child indices 556 DisplayList::Chunk& chunk = mDisplayList->chunks.back(); 557 chunk.endChildIndex = childIndex + 1; 558 559 if (renderNode->stagingProperties().isProjectionReceiver()) { 560 // use staging property, since recording on UI thread 561 mDisplayList->projectionReceiveIndex = opIndex; 562 } 563} 564 565void RecordingCanvas::drawLayer(DeferredLayerUpdater* layerHandle) { 566 // We ref the DeferredLayerUpdater due to its thread-safe ref-counting semantics. 567 mDisplayList->ref(layerHandle); 568 569 Layer* layer = layerHandle->backingLayer(); 570 Matrix4 totalTransform(*(mState.currentSnapshot()->transform)); 571 totalTransform.multiply(layer->getTransform()); 572 573 addOp(new (alloc()) TextureLayerOp( 574 Rect(layer->getWidth(), layer->getHeight()), 575 totalTransform, 576 getRecordedClip(), 577 layer)); 578} 579 580void RecordingCanvas::callDrawGLFunction(Functor* functor) { 581 mDisplayList->functors.push_back(functor); 582 addOp(new (alloc()) FunctorOp( 583 mState.getLocalClipBounds(), // TODO: explicitly define bounds 584 *(mState.currentSnapshot()->transform), 585 getRecordedClip(), 586 functor)); 587} 588 589size_t RecordingCanvas::addOp(RecordedOp* op) { 590 // TODO: validate if "addDrawOp" quickrejection logic is useful before adding 591 int insertIndex = mDisplayList->ops.size(); 592 mDisplayList->ops.push_back(op); 593 if (mDeferredBarrierType != DeferredBarrierType::None) { 594 // op is first in new chunk 595 mDisplayList->chunks.emplace_back(); 596 DisplayList::Chunk& newChunk = mDisplayList->chunks.back(); 597 newChunk.beginOpIndex = insertIndex; 598 newChunk.endOpIndex = insertIndex + 1; 599 newChunk.reorderChildren = (mDeferredBarrierType == DeferredBarrierType::OutOfOrder); 600 601 int nextChildIndex = mDisplayList->children.size(); 602 newChunk.beginChildIndex = newChunk.endChildIndex = nextChildIndex; 603 mDeferredBarrierType = DeferredBarrierType::None; 604 } else { 605 // standard case - append to existing chunk 606 mDisplayList->chunks.back().endOpIndex = insertIndex + 1; 607 } 608 return insertIndex; 609} 610 611void RecordingCanvas::refBitmapsInShader(const SkShader* shader) { 612 if (!shader) return; 613 614 // If this paint has an SkShader that has an SkBitmap add 615 // it to the bitmap pile 616 SkBitmap bitmap; 617 SkShader::TileMode xy[2]; 618 if (shader->isABitmap(&bitmap, nullptr, xy)) { 619 refBitmap(bitmap); 620 return; 621 } 622 SkShader::ComposeRec rec; 623 if (shader->asACompose(&rec)) { 624 refBitmapsInShader(rec.fShaderA); 625 refBitmapsInShader(rec.fShaderB); 626 return; 627 } 628} 629 630}; // namespace uirenderer 631}; // namespace android 632