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 24 namespace android { 25 namespace uirenderer { 26 27 RecordingCanvas::RecordingCanvas(size_t width, size_t height) 28 : mState(*this) 29 , mResourceCache(ResourceCache::getInstance()) { 30 resetRecording(width, height); 31 } 32 33 RecordingCanvas::~RecordingCanvas() { 34 LOG_ALWAYS_FATAL_IF(mDisplayList, 35 "Destroyed a RecordingCanvas during a record!"); 36 } 37 38 void 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 49 DisplayList* 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 60 void RecordingCanvas::insertReorderBarrier(bool enableReorder) { 61 if (enableReorder) { 62 mDeferredBarrierType = DeferredBarrierType::OutOfOrder; 63 mDeferredBarrierClip = getRecordedClip(); 64 } else { 65 mDeferredBarrierType = DeferredBarrierType::InOrder; 66 mDeferredBarrierClip = nullptr; 67 } 68 } 69 70 SkCanvas* RecordingCanvas::asSkCanvas() { 71 LOG_ALWAYS_FATAL_IF(!mDisplayList, 72 "attempting to get an SkCanvas when we are not recording!"); 73 if (!mSkiaCanvasProxy) { 74 mSkiaCanvasProxy.reset(new SkiaCanvasProxy(this)); 75 } 76 77 // SkCanvas instances default to identity transform, but should inherit 78 // the state of this Canvas; if this code was in the SkiaCanvasProxy 79 // constructor, we couldn't cache mSkiaCanvasProxy. 80 SkMatrix parentTransform; 81 getMatrix(&parentTransform); 82 mSkiaCanvasProxy.get()->setMatrix(parentTransform); 83 84 return mSkiaCanvasProxy.get(); 85 } 86 87 // ---------------------------------------------------------------------------- 88 // CanvasStateClient implementation 89 // ---------------------------------------------------------------------------- 90 91 void RecordingCanvas::onViewportInitialized() { 92 } 93 94 void RecordingCanvas::onSnapshotRestored(const Snapshot& removed, const Snapshot& restored) { 95 if (removed.flags & Snapshot::kFlagIsFboLayer) { 96 addOp(alloc().create_trivial<EndLayerOp>()); 97 } else if (removed.flags & Snapshot::kFlagIsLayer) { 98 addOp(alloc().create_trivial<EndUnclippedLayerOp>()); 99 } 100 } 101 102 // ---------------------------------------------------------------------------- 103 // android/graphics/Canvas state operations 104 // ---------------------------------------------------------------------------- 105 // Save (layer) 106 int RecordingCanvas::save(SaveFlags::Flags flags) { 107 return mState.save((int) flags); 108 } 109 110 void RecordingCanvas::RecordingCanvas::restore() { 111 mState.restore(); 112 } 113 114 void RecordingCanvas::restoreToCount(int saveCount) { 115 mState.restoreToCount(saveCount); 116 } 117 118 int RecordingCanvas::saveLayer(float left, float top, float right, float bottom, 119 const SkPaint* paint, SaveFlags::Flags flags) { 120 // force matrix/clip isolation for layer 121 flags |= SaveFlags::MatrixClip; 122 bool clippedLayer = flags & SaveFlags::ClipToLayer; 123 124 const Snapshot& previous = *mState.currentSnapshot(); 125 126 // initialize the snapshot as though it almost represents an FBO layer so deferred draw 127 // operations will be able to store and restore the current clip and transform info, and 128 // quick rejection will be correct (for display lists) 129 130 Rect unmappedBounds(left, top, right, bottom); 131 unmappedBounds.roundOut(); 132 133 // determine clipped bounds relative to previous viewport. 134 Rect visibleBounds = unmappedBounds; 135 previous.transform->mapRect(visibleBounds); 136 137 if (CC_UNLIKELY(!clippedLayer 138 && previous.transform->rectToRect() 139 && visibleBounds.contains(previous.getRenderTargetClip()))) { 140 // unlikely case where an unclipped savelayer is recorded with a clip it can use, 141 // as none of its unaffected/unclipped area is visible 142 clippedLayer = true; 143 flags |= SaveFlags::ClipToLayer; 144 } 145 146 visibleBounds.doIntersect(previous.getRenderTargetClip()); 147 visibleBounds.snapToPixelBoundaries(); 148 visibleBounds.doIntersect(Rect(previous.getViewportWidth(), previous.getViewportHeight())); 149 150 // Map visible bounds back to layer space, and intersect with parameter bounds 151 Rect layerBounds = visibleBounds; 152 if (CC_LIKELY(!layerBounds.isEmpty())) { 153 // if non-empty, can safely map by the inverse transform 154 Matrix4 inverse; 155 inverse.loadInverse(*previous.transform); 156 inverse.mapRect(layerBounds); 157 layerBounds.doIntersect(unmappedBounds); 158 } 159 160 int saveValue = mState.save((int) flags); 161 Snapshot& snapshot = *mState.writableSnapshot(); 162 163 // layerBounds is in original bounds space, but clipped by current recording clip 164 if (!layerBounds.isEmpty() && !unmappedBounds.isEmpty()) { 165 if (CC_LIKELY(clippedLayer)) { 166 auto previousClip = getRecordedClip(); // capture before new snapshot clip has changed 167 if (addOp(alloc().create_trivial<BeginLayerOp>( 168 unmappedBounds, 169 *previous.transform, // transform to *draw* with 170 previousClip, // clip to *draw* with 171 refPaint(paint))) >= 0) { 172 snapshot.flags |= Snapshot::kFlagIsLayer | Snapshot::kFlagIsFboLayer; 173 snapshot.initializeViewport(unmappedBounds.getWidth(), unmappedBounds.getHeight()); 174 snapshot.transform->loadTranslate(-unmappedBounds.left, -unmappedBounds.top, 0.0f); 175 176 Rect clip = layerBounds; 177 clip.translate(-unmappedBounds.left, -unmappedBounds.top); 178 snapshot.resetClip(clip.left, clip.top, clip.right, clip.bottom); 179 snapshot.roundRectClipState = nullptr; 180 return saveValue; 181 } 182 } else { 183 if (addOp(alloc().create_trivial<BeginUnclippedLayerOp>( 184 unmappedBounds, 185 *mState.currentSnapshot()->transform, 186 getRecordedClip(), 187 refPaint(paint))) >= 0) { 188 snapshot.flags |= Snapshot::kFlagIsLayer; 189 return saveValue; 190 } 191 } 192 } 193 194 // Layer not needed, so skip recording it... 195 if (CC_LIKELY(clippedLayer)) { 196 // ... and set empty clip to reject inner content, if possible 197 snapshot.resetClip(0, 0, 0, 0); 198 } 199 return saveValue; 200 } 201 202 // Matrix 203 void RecordingCanvas::rotate(float degrees) { 204 if (degrees == 0) return; 205 206 mState.rotate(degrees); 207 } 208 209 void RecordingCanvas::scale(float sx, float sy) { 210 if (sx == 1 && sy == 1) return; 211 212 mState.scale(sx, sy); 213 } 214 215 void RecordingCanvas::skew(float sx, float sy) { 216 mState.skew(sx, sy); 217 } 218 219 void RecordingCanvas::translate(float dx, float dy) { 220 if (dx == 0 && dy == 0) return; 221 222 mState.translate(dx, dy, 0); 223 } 224 225 // Clip 226 bool RecordingCanvas::getClipBounds(SkRect* outRect) const { 227 *outRect = mState.getLocalClipBounds().toSkRect(); 228 return !(outRect->isEmpty()); 229 } 230 bool RecordingCanvas::quickRejectRect(float left, float top, float right, float bottom) const { 231 return mState.quickRejectConservative(left, top, right, bottom); 232 } 233 bool RecordingCanvas::quickRejectPath(const SkPath& path) const { 234 SkRect bounds = path.getBounds(); 235 return mState.quickRejectConservative(bounds.fLeft, bounds.fTop, bounds.fRight, bounds.fBottom); 236 } 237 bool RecordingCanvas::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) { 238 return mState.clipRect(left, top, right, bottom, op); 239 } 240 bool RecordingCanvas::clipPath(const SkPath* path, SkRegion::Op op) { 241 return mState.clipPath(path, op); 242 } 243 bool RecordingCanvas::clipRegion(const SkRegion* region, SkRegion::Op op) { 244 return mState.clipRegion(region, op); 245 } 246 247 // ---------------------------------------------------------------------------- 248 // android/graphics/Canvas draw operations 249 // ---------------------------------------------------------------------------- 250 void RecordingCanvas::drawColor(int color, SkXfermode::Mode mode) { 251 addOp(alloc().create_trivial<ColorOp>( 252 getRecordedClip(), 253 color, 254 mode)); 255 } 256 257 void RecordingCanvas::drawPaint(const SkPaint& paint) { 258 SkRect bounds; 259 if (getClipBounds(&bounds)) { 260 drawRect(bounds.fLeft, bounds.fTop, bounds.fRight, bounds.fBottom, paint); 261 } 262 } 263 264 static Rect calcBoundsOfPoints(const float* points, int floatCount) { 265 Rect unmappedBounds(points[0], points[1], points[0], points[1]); 266 for (int i = 2; i < floatCount; i += 2) { 267 unmappedBounds.expandToCover(points[i], points[i + 1]); 268 } 269 return unmappedBounds; 270 } 271 272 // Geometry 273 void RecordingCanvas::drawPoints(const float* points, int floatCount, const SkPaint& paint) { 274 if (CC_UNLIKELY(floatCount < 2 || PaintUtils::paintWillNotDraw(paint))) return; 275 floatCount &= ~0x1; // round down to nearest two 276 277 addOp(alloc().create_trivial<PointsOp>( 278 calcBoundsOfPoints(points, floatCount), 279 *mState.currentSnapshot()->transform, 280 getRecordedClip(), 281 refPaint(&paint), refBuffer<float>(points, floatCount), floatCount)); 282 } 283 284 void RecordingCanvas::drawLines(const float* points, int floatCount, const SkPaint& paint) { 285 if (CC_UNLIKELY(floatCount < 4 || PaintUtils::paintWillNotDraw(paint))) return; 286 floatCount &= ~0x3; // round down to nearest four 287 288 addOp(alloc().create_trivial<LinesOp>( 289 calcBoundsOfPoints(points, floatCount), 290 *mState.currentSnapshot()->transform, 291 getRecordedClip(), 292 refPaint(&paint), refBuffer<float>(points, floatCount), floatCount)); 293 } 294 295 void RecordingCanvas::drawRect(float left, float top, float right, float bottom, const SkPaint& paint) { 296 if (CC_UNLIKELY(PaintUtils::paintWillNotDraw(paint))) return; 297 298 addOp(alloc().create_trivial<RectOp>( 299 Rect(left, top, right, bottom), 300 *(mState.currentSnapshot()->transform), 301 getRecordedClip(), 302 refPaint(&paint))); 303 } 304 305 void RecordingCanvas::drawSimpleRects(const float* rects, int vertexCount, const SkPaint* paint) { 306 if (rects == nullptr) return; 307 308 Vertex* rectData = (Vertex*) mDisplayList->allocator.create_trivial_array<Vertex>(vertexCount); 309 Vertex* vertex = rectData; 310 311 float left = FLT_MAX; 312 float top = FLT_MAX; 313 float right = FLT_MIN; 314 float bottom = FLT_MIN; 315 for (int index = 0; index < vertexCount; index += 4) { 316 float l = rects[index + 0]; 317 float t = rects[index + 1]; 318 float r = rects[index + 2]; 319 float b = rects[index + 3]; 320 321 Vertex::set(vertex++, l, t); 322 Vertex::set(vertex++, r, t); 323 Vertex::set(vertex++, l, b); 324 Vertex::set(vertex++, r, b); 325 326 left = std::min(left, l); 327 top = std::min(top, t); 328 right = std::max(right, r); 329 bottom = std::max(bottom, b); 330 } 331 addOp(alloc().create_trivial<SimpleRectsOp>( 332 Rect(left, top, right, bottom), 333 *(mState.currentSnapshot()->transform), 334 getRecordedClip(), 335 refPaint(paint), rectData, vertexCount)); 336 } 337 338 void RecordingCanvas::drawRegion(const SkRegion& region, const SkPaint& paint) { 339 if (CC_UNLIKELY(PaintUtils::paintWillNotDraw(paint))) return; 340 341 if (paint.getStyle() == SkPaint::kFill_Style 342 && (!paint.isAntiAlias() || mState.currentTransform()->isSimple())) { 343 int count = 0; 344 Vector<float> rects; 345 SkRegion::Iterator it(region); 346 while (!it.done()) { 347 const SkIRect& r = it.rect(); 348 rects.push(r.fLeft); 349 rects.push(r.fTop); 350 rects.push(r.fRight); 351 rects.push(r.fBottom); 352 count += 4; 353 it.next(); 354 } 355 drawSimpleRects(rects.array(), count, &paint); 356 } else { 357 SkRegion::Iterator it(region); 358 while (!it.done()) { 359 const SkIRect& r = it.rect(); 360 drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint); 361 it.next(); 362 } 363 } 364 } 365 366 void RecordingCanvas::drawRoundRect(float left, float top, float right, float bottom, 367 float rx, float ry, const SkPaint& paint) { 368 if (CC_UNLIKELY(PaintUtils::paintWillNotDraw(paint))) return; 369 370 if (CC_LIKELY(MathUtils::isPositive(rx) || MathUtils::isPositive(ry))) { 371 addOp(alloc().create_trivial<RoundRectOp>( 372 Rect(left, top, right, bottom), 373 *(mState.currentSnapshot()->transform), 374 getRecordedClip(), 375 refPaint(&paint), rx, ry)); 376 } else { 377 drawRect(left, top, right, bottom, paint); 378 } 379 } 380 381 void RecordingCanvas::drawRoundRect( 382 CanvasPropertyPrimitive* left, CanvasPropertyPrimitive* top, 383 CanvasPropertyPrimitive* right, CanvasPropertyPrimitive* bottom, 384 CanvasPropertyPrimitive* rx, CanvasPropertyPrimitive* ry, 385 CanvasPropertyPaint* paint) { 386 mDisplayList->ref(left); 387 mDisplayList->ref(top); 388 mDisplayList->ref(right); 389 mDisplayList->ref(bottom); 390 mDisplayList->ref(rx); 391 mDisplayList->ref(ry); 392 mDisplayList->ref(paint); 393 refBitmapsInShader(paint->value.getShader()); 394 addOp(alloc().create_trivial<RoundRectPropsOp>( 395 *(mState.currentSnapshot()->transform), 396 getRecordedClip(), 397 &paint->value, 398 &left->value, &top->value, &right->value, &bottom->value, 399 &rx->value, &ry->value)); 400 } 401 402 void RecordingCanvas::drawCircle(float x, float y, float radius, const SkPaint& paint) { 403 // TODO: move to Canvas.h 404 if (CC_UNLIKELY(radius <= 0 || PaintUtils::paintWillNotDraw(paint))) return; 405 406 drawOval(x - radius, y - radius, x + radius, y + radius, paint); 407 } 408 409 void RecordingCanvas::drawCircle( 410 CanvasPropertyPrimitive* x, CanvasPropertyPrimitive* y, 411 CanvasPropertyPrimitive* radius, CanvasPropertyPaint* paint) { 412 mDisplayList->ref(x); 413 mDisplayList->ref(y); 414 mDisplayList->ref(radius); 415 mDisplayList->ref(paint); 416 refBitmapsInShader(paint->value.getShader()); 417 addOp(alloc().create_trivial<CirclePropsOp>( 418 *(mState.currentSnapshot()->transform), 419 getRecordedClip(), 420 &paint->value, 421 &x->value, &y->value, &radius->value)); 422 } 423 424 void RecordingCanvas::drawOval(float left, float top, float right, float bottom, const SkPaint& paint) { 425 if (CC_UNLIKELY(PaintUtils::paintWillNotDraw(paint))) return; 426 427 addOp(alloc().create_trivial<OvalOp>( 428 Rect(left, top, right, bottom), 429 *(mState.currentSnapshot()->transform), 430 getRecordedClip(), 431 refPaint(&paint))); 432 } 433 434 void RecordingCanvas::drawArc(float left, float top, float right, float bottom, 435 float startAngle, float sweepAngle, bool useCenter, const SkPaint& paint) { 436 if (CC_UNLIKELY(PaintUtils::paintWillNotDraw(paint))) return; 437 438 if (fabs(sweepAngle) >= 360.0f) { 439 drawOval(left, top, right, bottom, paint); 440 } else { 441 addOp(alloc().create_trivial<ArcOp>( 442 Rect(left, top, right, bottom), 443 *(mState.currentSnapshot()->transform), 444 getRecordedClip(), 445 refPaint(&paint), 446 startAngle, sweepAngle, useCenter)); 447 } 448 } 449 450 void RecordingCanvas::drawPath(const SkPath& path, const SkPaint& paint) { 451 if (CC_UNLIKELY(PaintUtils::paintWillNotDraw(paint))) return; 452 453 addOp(alloc().create_trivial<PathOp>( 454 Rect(path.getBounds()), 455 *(mState.currentSnapshot()->transform), 456 getRecordedClip(), 457 refPaint(&paint), refPath(&path))); 458 } 459 460 void RecordingCanvas::drawVectorDrawable(VectorDrawableRoot* tree) { 461 mDisplayList->ref(tree); 462 mDisplayList->vectorDrawables.push_back(tree); 463 addOp(alloc().create_trivial<VectorDrawableOp>( 464 tree, 465 Rect(tree->stagingProperties()->getBounds()), 466 *(mState.currentSnapshot()->transform), 467 getRecordedClip())); 468 } 469 470 // Bitmap-based 471 void RecordingCanvas::drawBitmap(const SkBitmap& bitmap, float left, float top, const SkPaint* paint) { 472 save(SaveFlags::Matrix); 473 translate(left, top); 474 drawBitmap(&bitmap, paint); 475 restore(); 476 } 477 478 void RecordingCanvas::drawBitmap(const SkBitmap& bitmap, const SkMatrix& matrix, 479 const SkPaint* paint) { 480 if (matrix.isIdentity()) { 481 drawBitmap(&bitmap, paint); 482 } else if (!(matrix.getType() & ~(SkMatrix::kScale_Mask | SkMatrix::kTranslate_Mask)) 483 && MathUtils::isPositive(matrix.getScaleX()) 484 && MathUtils::isPositive(matrix.getScaleY())) { 485 // SkMatrix::isScaleTranslate() not available in L 486 SkRect src; 487 SkRect dst; 488 bitmap.getBounds(&src); 489 matrix.mapRect(&dst, src); 490 drawBitmap(bitmap, src.fLeft, src.fTop, src.fRight, src.fBottom, 491 dst.fLeft, dst.fTop, dst.fRight, dst.fBottom, paint); 492 } else { 493 save(SaveFlags::Matrix); 494 concat(matrix); 495 drawBitmap(&bitmap, paint); 496 restore(); 497 } 498 } 499 500 void RecordingCanvas::drawBitmap(const SkBitmap& bitmap, float srcLeft, float srcTop, 501 float srcRight, float srcBottom, float dstLeft, float dstTop, 502 float dstRight, float dstBottom, const SkPaint* paint) { 503 if (srcLeft == 0 && srcTop == 0 504 && srcRight == bitmap.width() 505 && srcBottom == bitmap.height() 506 && (srcBottom - srcTop == dstBottom - dstTop) 507 && (srcRight - srcLeft == dstRight - dstLeft)) { 508 // transform simple rect to rect drawing case into position bitmap ops, since they merge 509 save(SaveFlags::Matrix); 510 translate(dstLeft, dstTop); 511 drawBitmap(&bitmap, paint); 512 restore(); 513 } else { 514 addOp(alloc().create_trivial<BitmapRectOp>( 515 Rect(dstLeft, dstTop, dstRight, dstBottom), 516 *(mState.currentSnapshot()->transform), 517 getRecordedClip(), 518 refPaint(paint), refBitmap(bitmap), 519 Rect(srcLeft, srcTop, srcRight, srcBottom))); 520 } 521 } 522 523 void RecordingCanvas::drawBitmapMesh(const SkBitmap& bitmap, int meshWidth, int meshHeight, 524 const float* vertices, const int* colors, const SkPaint* paint) { 525 int vertexCount = (meshWidth + 1) * (meshHeight + 1); 526 addOp(alloc().create_trivial<BitmapMeshOp>( 527 calcBoundsOfPoints(vertices, vertexCount * 2), 528 *(mState.currentSnapshot()->transform), 529 getRecordedClip(), 530 refPaint(paint), refBitmap(bitmap), meshWidth, meshHeight, 531 refBuffer<float>(vertices, vertexCount * 2), // 2 floats per vertex 532 refBuffer<int>(colors, vertexCount))); // 1 color per vertex 533 } 534 535 void RecordingCanvas::drawNinePatch(const SkBitmap& bitmap, const android::Res_png_9patch& patch, 536 float dstLeft, float dstTop, float dstRight, float dstBottom, 537 const SkPaint* paint) { 538 addOp(alloc().create_trivial<PatchOp>( 539 Rect(dstLeft, dstTop, dstRight, dstBottom), 540 *(mState.currentSnapshot()->transform), 541 getRecordedClip(), 542 refPaint(paint), refBitmap(bitmap), refPatch(&patch))); 543 } 544 545 // Text 546 void RecordingCanvas::drawGlyphs(const uint16_t* glyphs, const float* positions, int glyphCount, 547 const SkPaint& paint, float x, float y, float boundsLeft, float boundsTop, 548 float boundsRight, float boundsBottom, float totalAdvance) { 549 if (!glyphs || !positions || glyphCount <= 0 || PaintUtils::paintWillNotDrawText(paint)) return; 550 glyphs = refBuffer<glyph_t>(glyphs, glyphCount); 551 positions = refBuffer<float>(positions, glyphCount * 2); 552 553 // TODO: either must account for text shadow in bounds, or record separate ops for text shadows 554 addOp(alloc().create_trivial<TextOp>( 555 Rect(boundsLeft, boundsTop, boundsRight, boundsBottom), 556 *(mState.currentSnapshot()->transform), 557 getRecordedClip(), 558 refPaint(&paint), glyphs, positions, glyphCount, x, y)); 559 drawTextDecorations(x, y, totalAdvance, paint); 560 } 561 562 void RecordingCanvas::drawGlyphsOnPath(const uint16_t* glyphs, int glyphCount, const SkPath& path, 563 float hOffset, float vOffset, const SkPaint& paint) { 564 if (!glyphs || glyphCount <= 0 || PaintUtils::paintWillNotDrawText(paint)) return; 565 glyphs = refBuffer<glyph_t>(glyphs, glyphCount); 566 addOp(alloc().create_trivial<TextOnPathOp>( 567 *(mState.currentSnapshot()->transform), 568 getRecordedClip(), 569 refPaint(&paint), glyphs, glyphCount, refPath(&path), hOffset, vOffset)); 570 } 571 572 void RecordingCanvas::drawBitmap(const SkBitmap* bitmap, const SkPaint* paint) { 573 addOp(alloc().create_trivial<BitmapOp>( 574 Rect(bitmap->width(), bitmap->height()), 575 *(mState.currentSnapshot()->transform), 576 getRecordedClip(), 577 refPaint(paint), refBitmap(*bitmap))); 578 } 579 580 void RecordingCanvas::drawRenderNode(RenderNode* renderNode) { 581 auto&& stagingProps = renderNode->stagingProperties(); 582 RenderNodeOp* op = alloc().create_trivial<RenderNodeOp>( 583 Rect(stagingProps.getWidth(), stagingProps.getHeight()), 584 *(mState.currentSnapshot()->transform), 585 getRecordedClip(), 586 renderNode); 587 int opIndex = addOp(op); 588 if (CC_LIKELY(opIndex >= 0)) { 589 int childIndex = mDisplayList->addChild(op); 590 591 // update the chunk's child indices 592 DisplayList::Chunk& chunk = mDisplayList->chunks.back(); 593 chunk.endChildIndex = childIndex + 1; 594 595 if (renderNode->stagingProperties().isProjectionReceiver()) { 596 // use staging property, since recording on UI thread 597 mDisplayList->projectionReceiveIndex = opIndex; 598 } 599 } 600 } 601 602 void RecordingCanvas::drawLayer(DeferredLayerUpdater* layerHandle) { 603 // We ref the DeferredLayerUpdater due to its thread-safe ref-counting semantics. 604 mDisplayList->ref(layerHandle); 605 606 // Note that the backing layer has *not* yet been updated, so don't trust 607 // its width, height, transform, etc...! 608 addOp(alloc().create_trivial<TextureLayerOp>( 609 Rect(layerHandle->getWidth(), layerHandle->getHeight()), 610 *(mState.currentSnapshot()->transform), 611 getRecordedClip(), 612 layerHandle->backingLayer())); 613 } 614 615 void RecordingCanvas::callDrawGLFunction(Functor* functor, 616 GlFunctorLifecycleListener* listener) { 617 mDisplayList->functors.push_back({functor, listener}); 618 mDisplayList->ref(listener); 619 addOp(alloc().create_trivial<FunctorOp>( 620 *(mState.currentSnapshot()->transform), 621 getRecordedClip(), 622 functor)); 623 } 624 625 int RecordingCanvas::addOp(RecordedOp* op) { 626 // skip op with empty clip 627 if (op->localClip && op->localClip->rect.isEmpty()) { 628 // NOTE: this rejection happens after op construction/content ref-ing, so content ref'd 629 // and held by renderthread isn't affected by clip rejection. 630 // Could rewind alloc here if desired, but callers would have to not touch op afterwards. 631 return -1; 632 } 633 634 int insertIndex = mDisplayList->ops.size(); 635 mDisplayList->ops.push_back(op); 636 if (mDeferredBarrierType != DeferredBarrierType::None) { 637 // op is first in new chunk 638 mDisplayList->chunks.emplace_back(); 639 DisplayList::Chunk& newChunk = mDisplayList->chunks.back(); 640 newChunk.beginOpIndex = insertIndex; 641 newChunk.endOpIndex = insertIndex + 1; 642 newChunk.reorderChildren = (mDeferredBarrierType == DeferredBarrierType::OutOfOrder); 643 newChunk.reorderClip = mDeferredBarrierClip; 644 645 int nextChildIndex = mDisplayList->children.size(); 646 newChunk.beginChildIndex = newChunk.endChildIndex = nextChildIndex; 647 mDeferredBarrierType = DeferredBarrierType::None; 648 } else { 649 // standard case - append to existing chunk 650 mDisplayList->chunks.back().endOpIndex = insertIndex + 1; 651 } 652 return insertIndex; 653 } 654 655 void RecordingCanvas::refBitmapsInShader(const SkShader* shader) { 656 if (!shader) return; 657 658 // If this paint has an SkShader that has an SkBitmap add 659 // it to the bitmap pile 660 SkBitmap bitmap; 661 SkShader::TileMode xy[2]; 662 if (shader->isABitmap(&bitmap, nullptr, xy)) { 663 refBitmap(bitmap); 664 return; 665 } 666 SkShader::ComposeRec rec; 667 if (shader->asACompose(&rec)) { 668 refBitmapsInShader(rec.fShaderA); 669 refBitmapsInShader(rec.fShaderB); 670 return; 671 } 672 } 673 674 }; // namespace uirenderer 675 }; // namespace android 676