RenderNode.cpp revision 08c96b5515f061f61e13b348f6022ce7c586e4c4
1/* 2 * Copyright (C) 2014 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#define ATRACE_TAG ATRACE_TAG_VIEW 18 19#include "RenderNode.h" 20 21#include <SkCanvas.h> 22#include <algorithm> 23 24#include <utils/Trace.h> 25 26#include "Debug.h" 27#include "DisplayListOp.h" 28#include "DisplayListLogBuffer.h" 29 30namespace android { 31namespace uirenderer { 32 33void RenderNode::outputLogBuffer(int fd) { 34 DisplayListLogBuffer& logBuffer = DisplayListLogBuffer::getInstance(); 35 if (logBuffer.isEmpty()) { 36 return; 37 } 38 39 FILE *file = fdopen(fd, "a"); 40 41 fprintf(file, "\nRecent DisplayList operations\n"); 42 logBuffer.outputCommands(file); 43 44 String8 cachesLog; 45 Caches::getInstance().dumpMemoryUsage(cachesLog); 46 fprintf(file, "\nCaches:\n%s", cachesLog.string()); 47 fprintf(file, "\n"); 48 49 fflush(file); 50} 51 52RenderNode::RenderNode() : mDestroyed(false), mNeedsPropertiesSync(false), mDisplayListData(0) { 53} 54 55RenderNode::~RenderNode() { 56 LOG_ALWAYS_FATAL_IF(mDestroyed, "Double destroyed DisplayList %p", this); 57 58 mDestroyed = true; 59 delete mDisplayListData; 60} 61 62void RenderNode::destroyDisplayListDeferred(RenderNode* displayList) { 63 if (displayList) { 64 DISPLAY_LIST_LOGD("Deferring display list destruction"); 65 Caches::getInstance().deleteDisplayListDeferred(displayList); 66 } 67} 68 69void RenderNode::setData(DisplayListData* data) { 70 delete mDisplayListData; 71 mDisplayListData = data; 72 if (mDisplayListData) { 73 Caches::getInstance().registerFunctors(mDisplayListData->functorCount); 74 } 75} 76 77/** 78 * This function is a simplified version of replay(), where we simply retrieve and log the 79 * display list. This function should remain in sync with the replay() function. 80 */ 81void RenderNode::output(uint32_t level) { 82 ALOGD("%*sStart display list (%p, %s, render=%d)", (level - 1) * 2, "", this, 83 mName.string(), isRenderable()); 84 ALOGD("%*s%s %d", level * 2, "", "Save", 85 SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 86 87 properties().debugOutputProperties(level); 88 int flags = DisplayListOp::kOpLogFlag_Recurse; 89 for (unsigned int i = 0; i < mDisplayListData->displayListOps.size(); i++) { 90 mDisplayListData->displayListOps[i]->output(level, flags); 91 } 92 93 ALOGD("%*sDone (%p, %s)", (level - 1) * 2, "", this, mName.string()); 94} 95 96void RenderNode::updateProperties() { 97 if (mNeedsPropertiesSync) { 98 mNeedsPropertiesSync = false; 99 mProperties = mStagingProperties; 100 } 101 102 if (mDisplayListData) { 103 for (size_t i = 0; i < mDisplayListData->children.size(); i++) { 104 RenderNode* childNode = mDisplayListData->children[i]->mDisplayList; 105 childNode->updateProperties(); 106 } 107 } 108} 109 110bool RenderNode::hasFunctors() { 111 if (!mDisplayListData) return false; 112 113 if (mDisplayListData->functorCount) { 114 return true; 115 } 116 117 for (size_t i = 0; i < mDisplayListData->children.size(); i++) { 118 RenderNode* childNode = mDisplayListData->children[i]->mDisplayList; 119 if (childNode->hasFunctors()) { 120 return true; 121 } 122 } 123 124 return false; 125} 126 127/* 128 * For property operations, we pass a savecount of 0, since the operations aren't part of the 129 * displaylist, and thus don't have to compensate for the record-time/playback-time discrepancy in 130 * base saveCount (i.e., how RestoreToCount uses saveCount + properties().getCount()) 131 */ 132#define PROPERTY_SAVECOUNT 0 133 134template <class T> 135void RenderNode::setViewProperties(OpenGLRenderer& renderer, T& handler, 136 const int level) { 137#if DEBUG_DISPLAY_LIST 138 properties().debugOutputProperties(level); 139#endif 140 if (properties().getLeft() != 0 || properties().getTop() != 0) { 141 renderer.translate(properties().getLeft(), properties().getTop()); 142 } 143 if (properties().getStaticMatrix()) { 144 renderer.concatMatrix(properties().getStaticMatrix()); 145 } else if (properties().getAnimationMatrix()) { 146 renderer.concatMatrix(properties().getAnimationMatrix()); 147 } 148 if (properties().getMatrixFlags() != 0) { 149 if (properties().getMatrixFlags() == TRANSLATION) { 150 renderer.translate(properties().getTranslationX(), properties().getTranslationY()); 151 } else { 152 renderer.concatMatrix(*properties().getTransformMatrix()); 153 } 154 } 155 bool clipToBoundsNeeded = properties().getCaching() ? false : properties().getClipToBounds(); 156 if (properties().getAlpha() < 1) { 157 if (properties().getCaching()) { 158 renderer.setOverrideLayerAlpha(properties().getAlpha()); 159 } else if (!properties().getHasOverlappingRendering()) { 160 renderer.scaleAlpha(properties().getAlpha()); 161 } else { 162 // TODO: should be able to store the size of a DL at record time and not 163 // have to pass it into this call. In fact, this information might be in the 164 // location/size info that we store with the new native transform data. 165 int saveFlags = SkCanvas::kHasAlphaLayer_SaveFlag; 166 if (clipToBoundsNeeded) { 167 saveFlags |= SkCanvas::kClipToLayer_SaveFlag; 168 clipToBoundsNeeded = false; // clipping done by saveLayer 169 } 170 171 SaveLayerOp* op = new (handler.allocator()) SaveLayerOp( 172 0, 0, properties().getWidth(), properties().getHeight(), 173 properties().getAlpha() * 255, saveFlags); 174 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 175 } 176 } 177 if (clipToBoundsNeeded) { 178 ClipRectOp* op = new (handler.allocator()) ClipRectOp( 179 0, 0, properties().getWidth(), properties().getHeight(), SkRegion::kIntersect_Op); 180 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 181 } 182 183 if (CC_UNLIKELY(properties().hasClippingPath())) { 184 // TODO: optimize for round rect/circle clipping 185 const SkPath* path = properties().getClippingPath(); 186 ClipPathOp* op = new (handler.allocator()) ClipPathOp(path, SkRegion::kIntersect_Op); 187 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 188 } 189} 190 191/** 192 * Apply property-based transformations to input matrix 193 * 194 * If true3dTransform is set to true, the transform applied to the input matrix will use true 4x4 195 * matrix computation instead of the Skia 3x3 matrix + camera hackery. 196 */ 197void RenderNode::applyViewPropertyTransforms(mat4& matrix, bool true3dTransform) { 198 if (properties().getLeft() != 0 || properties().getTop() != 0) { 199 matrix.translate(properties().getLeft(), properties().getTop()); 200 } 201 if (properties().getStaticMatrix()) { 202 mat4 stat(*properties().getStaticMatrix()); 203 matrix.multiply(stat); 204 } else if (properties().getAnimationMatrix()) { 205 mat4 anim(*properties().getAnimationMatrix()); 206 matrix.multiply(anim); 207 } 208 if (properties().getMatrixFlags() != 0) { 209 if (properties().getMatrixFlags() == TRANSLATION) { 210 matrix.translate(properties().getTranslationX(), properties().getTranslationY(), 211 true3dTransform ? properties().getTranslationZ() : 0.0f); 212 } else { 213 if (!true3dTransform) { 214 matrix.multiply(*properties().getTransformMatrix()); 215 } else { 216 mat4 true3dMat; 217 true3dMat.loadTranslate( 218 properties().getPivotX() + properties().getTranslationX(), 219 properties().getPivotY() + properties().getTranslationY(), 220 properties().getTranslationZ()); 221 true3dMat.rotate(properties().getRotationX(), 1, 0, 0); 222 true3dMat.rotate(properties().getRotationY(), 0, 1, 0); 223 true3dMat.rotate(properties().getRotation(), 0, 0, 1); 224 true3dMat.scale(properties().getScaleX(), properties().getScaleY(), 1); 225 true3dMat.translate(-properties().getPivotX(), -properties().getPivotY()); 226 227 matrix.multiply(true3dMat); 228 } 229 } 230 } 231} 232 233/** 234 * Organizes the DisplayList hierarchy to prepare for background projection reordering. 235 * 236 * This should be called before a call to defer() or drawDisplayList() 237 * 238 * Each DisplayList that serves as a 3d root builds its list of composited children, 239 * which are flagged to not draw in the standard draw loop. 240 */ 241void RenderNode::computeOrdering() { 242 ATRACE_CALL(); 243 mProjectedNodes.clear(); 244 245 // TODO: create temporary DDLOp and call computeOrderingImpl on top DisplayList so that 246 // transform properties are applied correctly to top level children 247 if (mDisplayListData == NULL) return; 248 for (unsigned int i = 0; i < mDisplayListData->children.size(); i++) { 249 DrawDisplayListOp* childOp = mDisplayListData->children[i]; 250 childOp->mDisplayList->computeOrderingImpl(childOp, 251 &mProjectedNodes, &mat4::identity()); 252 } 253} 254 255void RenderNode::computeOrderingImpl( 256 DrawDisplayListOp* opState, 257 Vector<DrawDisplayListOp*>* compositedChildrenOfProjectionSurface, 258 const mat4* transformFromProjectionSurface) { 259 mProjectedNodes.clear(); 260 if (mDisplayListData == NULL || mDisplayListData->isEmpty()) return; 261 262 // TODO: should avoid this calculation in most cases 263 // TODO: just calculate single matrix, down to all leaf composited elements 264 Matrix4 localTransformFromProjectionSurface(*transformFromProjectionSurface); 265 localTransformFromProjectionSurface.multiply(opState->mTransformFromParent); 266 267 if (properties().getProjectBackwards()) { 268 // composited projectee, flag for out of order draw, save matrix, and store in proj surface 269 opState->mSkipInOrderDraw = true; 270 opState->mTransformFromCompositingAncestor.load(localTransformFromProjectionSurface); 271 compositedChildrenOfProjectionSurface->add(opState); 272 } else { 273 // standard in order draw 274 opState->mSkipInOrderDraw = false; 275 } 276 277 if (mDisplayListData->children.size() > 0) { 278 const bool isProjectionReceiver = mDisplayListData->projectionReceiveIndex >= 0; 279 bool haveAppliedPropertiesToProjection = false; 280 for (unsigned int i = 0; i < mDisplayListData->children.size(); i++) { 281 DrawDisplayListOp* childOp = mDisplayListData->children[i]; 282 RenderNode* child = childOp->mDisplayList; 283 284 Vector<DrawDisplayListOp*>* projectionChildren = NULL; 285 const mat4* projectionTransform = NULL; 286 if (isProjectionReceiver && !child->properties().getProjectBackwards()) { 287 // if receiving projections, collect projecting descendent 288 289 // Note that if a direct descendent is projecting backwards, we pass it's 290 // grandparent projection collection, since it shouldn't project onto it's 291 // parent, where it will already be drawing. 292 projectionChildren = &mProjectedNodes; 293 projectionTransform = &mat4::identity(); 294 } else { 295 if (!haveAppliedPropertiesToProjection) { 296 applyViewPropertyTransforms(localTransformFromProjectionSurface); 297 haveAppliedPropertiesToProjection = true; 298 } 299 projectionChildren = compositedChildrenOfProjectionSurface; 300 projectionTransform = &localTransformFromProjectionSurface; 301 } 302 child->computeOrderingImpl(childOp, projectionChildren, projectionTransform); 303 } 304 } 305 306} 307 308class DeferOperationHandler { 309public: 310 DeferOperationHandler(DeferStateStruct& deferStruct, int level) 311 : mDeferStruct(deferStruct), mLevel(level) {} 312 inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) { 313 operation->defer(mDeferStruct, saveCount, mLevel, clipToBounds); 314 } 315 inline LinearAllocator& allocator() { return *(mDeferStruct.mAllocator); } 316 317private: 318 DeferStateStruct& mDeferStruct; 319 const int mLevel; 320}; 321 322void RenderNode::defer(DeferStateStruct& deferStruct, const int level) { 323 DeferOperationHandler handler(deferStruct, level); 324 iterate<DeferOperationHandler>(deferStruct.mRenderer, handler, level); 325} 326 327class ReplayOperationHandler { 328public: 329 ReplayOperationHandler(ReplayStateStruct& replayStruct, int level) 330 : mReplayStruct(replayStruct), mLevel(level) {} 331 inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) { 332#if DEBUG_DISPLAY_LIST_OPS_AS_EVENTS 333 properties().getReplayStruct().mRenderer.eventMark(operation->name()); 334#endif 335 operation->replay(mReplayStruct, saveCount, mLevel, clipToBounds); 336 } 337 inline LinearAllocator& allocator() { return *(mReplayStruct.mAllocator); } 338 339private: 340 ReplayStateStruct& mReplayStruct; 341 const int mLevel; 342}; 343 344void RenderNode::replay(ReplayStateStruct& replayStruct, const int level) { 345 ReplayOperationHandler handler(replayStruct, level); 346 347 replayStruct.mRenderer.startMark(mName.string()); 348 iterate<ReplayOperationHandler>(replayStruct.mRenderer, handler, level); 349 replayStruct.mRenderer.endMark(); 350 351 DISPLAY_LIST_LOGD("%*sDone (%p, %s), returning %d", level * 2, "", this, mName.string(), 352 replayStruct.mDrawGlStatus); 353} 354 355void RenderNode::buildZSortedChildList(Vector<ZDrawDisplayListOpPair>& zTranslatedNodes) { 356 if (mDisplayListData == NULL || mDisplayListData->children.size() == 0) return; 357 358 for (unsigned int i = 0; i < mDisplayListData->children.size(); i++) { 359 DrawDisplayListOp* childOp = mDisplayListData->children[i]; 360 RenderNode* child = childOp->mDisplayList; 361 float childZ = child->properties().getTranslationZ(); 362 363 if (childZ != 0.0f) { 364 zTranslatedNodes.add(ZDrawDisplayListOpPair(childZ, childOp)); 365 childOp->mSkipInOrderDraw = true; 366 } else if (!child->properties().getProjectBackwards()) { 367 // regular, in order drawing DisplayList 368 childOp->mSkipInOrderDraw = false; 369 } 370 } 371 372 // Z sort 3d children (stable-ness makes z compare fall back to standard drawing order) 373 std::stable_sort(zTranslatedNodes.begin(), zTranslatedNodes.end()); 374} 375 376#define SHADOW_DELTA 0.1f 377 378template <class T> 379void RenderNode::iterate3dChildren(const Vector<ZDrawDisplayListOpPair>& zTranslatedNodes, 380 ChildrenSelectMode mode, OpenGLRenderer& renderer, T& handler) { 381 const int size = zTranslatedNodes.size(); 382 if (size == 0 383 || (mode == kNegativeZChildren && zTranslatedNodes[0].key > 0.0f) 384 || (mode == kPositiveZChildren && zTranslatedNodes[size - 1].key < 0.0f)) { 385 // no 3d children to draw 386 return; 387 } 388 389 int rootRestoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 390 LinearAllocator& alloc = handler.allocator(); 391 ClipRectOp* clipOp = new (alloc) ClipRectOp(0, 0, properties().getWidth(), properties().getHeight(), 392 SkRegion::kIntersect_Op); // clip to 3d root bounds 393 handler(clipOp, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 394 395 /** 396 * Draw shadows and (potential) casters mostly in order, but allow the shadows of casters 397 * with very similar Z heights to draw together. 398 * 399 * This way, if Views A & B have the same Z height and are both casting shadows, the shadows are 400 * underneath both, and neither's shadow is drawn on top of the other. 401 */ 402 const size_t nonNegativeIndex = findNonNegativeIndex(zTranslatedNodes); 403 size_t drawIndex, shadowIndex, endIndex; 404 if (mode == kNegativeZChildren) { 405 drawIndex = 0; 406 endIndex = nonNegativeIndex; 407 shadowIndex = endIndex; // draw no shadows 408 } else { 409 drawIndex = nonNegativeIndex; 410 endIndex = size; 411 shadowIndex = drawIndex; // potentially draw shadow for each pos Z child 412 } 413 float lastCasterZ = 0.0f; 414 while (shadowIndex < endIndex || drawIndex < endIndex) { 415 if (shadowIndex < endIndex) { 416 DrawDisplayListOp* casterOp = zTranslatedNodes[shadowIndex].value; 417 RenderNode* caster = casterOp->mDisplayList; 418 const float casterZ = zTranslatedNodes[shadowIndex].key; 419 // attempt to render the shadow if the caster about to be drawn is its caster, 420 // OR if its caster's Z value is similar to the previous potential caster 421 if (shadowIndex == drawIndex || casterZ - lastCasterZ < SHADOW_DELTA) { 422 423 if (caster->properties().getAlpha() > 0.0f) { 424 mat4 shadowMatrixXY(casterOp->mTransformFromParent); 425 caster->applyViewPropertyTransforms(shadowMatrixXY); 426 427 // Z matrix needs actual 3d transformation, so mapped z values will be correct 428 mat4 shadowMatrixZ(casterOp->mTransformFromParent); 429 caster->applyViewPropertyTransforms(shadowMatrixZ, true); 430 431 const SkPath* outlinePath = caster->properties().getOutline().getPath(); 432 const RevealClip& revealClip = caster->properties().getRevealClip(); 433 const SkPath* revealClipPath = revealClip.hasConvexClip() 434 ? revealClip.getPath() : NULL; // only pass the reveal clip's path if it's convex 435 436 /** 437 * The drawing area of the caster is always the same as the its perimeter (which 438 * the shadow system uses) *except* in the inverse clip case. Inform the shadow 439 * system that the caster's drawing area (as opposed to its perimeter) has been 440 * clipped, so that it knows the caster can't be opaque. 441 */ 442 bool casterUnclipped = !revealClip.willClip() || revealClip.hasConvexClip(); 443 444 DisplayListOp* shadowOp = new (alloc) DrawShadowOp( 445 shadowMatrixXY, shadowMatrixZ, 446 caster->properties().getAlpha(), casterUnclipped, 447 caster->properties().getWidth(), caster->properties().getHeight(), 448 outlinePath, revealClipPath); 449 handler(shadowOp, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 450 } 451 452 lastCasterZ = casterZ; // must do this even if current caster not casting a shadow 453 shadowIndex++; 454 continue; 455 } 456 } 457 458 // only the actual child DL draw needs to be in save/restore, 459 // since it modifies the renderer's matrix 460 int restoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 461 462 DrawDisplayListOp* childOp = zTranslatedNodes[drawIndex].value; 463 RenderNode* child = childOp->mDisplayList; 464 465 renderer.concatMatrix(childOp->mTransformFromParent); 466 childOp->mSkipInOrderDraw = false; // this is horrible, I'm so sorry everyone 467 handler(childOp, renderer.getSaveCount() - 1, properties().getClipToBounds()); 468 childOp->mSkipInOrderDraw = true; 469 470 renderer.restoreToCount(restoreTo); 471 drawIndex++; 472 } 473 handler(new (alloc) RestoreToCountOp(rootRestoreTo), PROPERTY_SAVECOUNT, properties().getClipToBounds()); 474} 475 476template <class T> 477void RenderNode::iterateProjectedChildren(OpenGLRenderer& renderer, T& handler, const int level) { 478 int rootRestoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 479 LinearAllocator& alloc = handler.allocator(); 480 ClipRectOp* clipOp = new (alloc) ClipRectOp(0, 0, properties().getWidth(), properties().getHeight(), 481 SkRegion::kReplace_Op); // clip to projection surface root bounds 482 handler(clipOp, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 483 484 for (size_t i = 0; i < mProjectedNodes.size(); i++) { 485 DrawDisplayListOp* childOp = mProjectedNodes[i]; 486 487 // matrix save, concat, and restore can be done safely without allocating operations 488 int restoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 489 renderer.concatMatrix(childOp->mTransformFromCompositingAncestor); 490 childOp->mSkipInOrderDraw = false; // this is horrible, I'm so sorry everyone 491 handler(childOp, renderer.getSaveCount() - 1, properties().getClipToBounds()); 492 childOp->mSkipInOrderDraw = true; 493 renderer.restoreToCount(restoreTo); 494 } 495 handler(new (alloc) RestoreToCountOp(rootRestoreTo), PROPERTY_SAVECOUNT, properties().getClipToBounds()); 496} 497 498/** 499 * This function serves both defer and replay modes, and will organize the displayList's component 500 * operations for a single frame: 501 * 502 * Every 'simple' state operation that affects just the matrix and alpha (or other factors of 503 * DeferredDisplayState) may be issued directly to the renderer, but complex operations (with custom 504 * defer logic) and operations in displayListOps are issued through the 'handler' which handles the 505 * defer vs replay logic, per operation 506 */ 507template <class T> 508void RenderNode::iterate(OpenGLRenderer& renderer, T& handler, const int level) { 509 if (CC_UNLIKELY(mDestroyed)) { // temporary debug logging 510 ALOGW("Error: %s is drawing after destruction", mName.string()); 511 CRASH(); 512 } 513 if (mDisplayListData->isEmpty() || properties().getAlpha() <= 0) { 514 DISPLAY_LIST_LOGD("%*sEmpty display list (%p, %s)", level * 2, "", this, mName.string()); 515 return; 516 } 517 518#if DEBUG_DISPLAY_LIST 519 Rect* clipRect = renderer.getClipRect(); 520 DISPLAY_LIST_LOGD("%*sStart display list (%p, %s), clipRect: %.0f, %.0f, %.0f, %.0f", 521 level * 2, "", this, mName.string(), clipRect->left, clipRect->top, 522 clipRect->right, clipRect->bottom); 523#endif 524 525 LinearAllocator& alloc = handler.allocator(); 526 int restoreTo = renderer.getSaveCount(); 527 handler(new (alloc) SaveOp(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag), 528 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 529 530 DISPLAY_LIST_LOGD("%*sSave %d %d", (level + 1) * 2, "", 531 SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag, restoreTo); 532 533 setViewProperties<T>(renderer, handler, level + 1); 534 535 bool quickRejected = properties().getClipToBounds() 536 && renderer.quickRejectConservative(0, 0, properties().getWidth(), properties().getHeight()); 537 if (!quickRejected) { 538 Vector<ZDrawDisplayListOpPair> zTranslatedNodes; 539 buildZSortedChildList(zTranslatedNodes); 540 541 // for 3d root, draw children with negative z values 542 iterate3dChildren(zTranslatedNodes, kNegativeZChildren, renderer, handler); 543 544 DisplayListLogBuffer& logBuffer = DisplayListLogBuffer::getInstance(); 545 const int saveCountOffset = renderer.getSaveCount() - 1; 546 const int projectionReceiveIndex = mDisplayListData->projectionReceiveIndex; 547 for (unsigned int i = 0; i < mDisplayListData->displayListOps.size(); i++) { 548 DisplayListOp *op = mDisplayListData->displayListOps[i]; 549 550#if DEBUG_DISPLAY_LIST 551 op->output(level + 1); 552#endif 553 554 logBuffer.writeCommand(level, op->name()); 555 handler(op, saveCountOffset, properties().getClipToBounds()); 556 557 if (CC_UNLIKELY(i == projectionReceiveIndex && mProjectedNodes.size() > 0)) { 558 iterateProjectedChildren(renderer, handler, level); 559 } 560 } 561 562 // for 3d root, draw children with positive z values 563 iterate3dChildren(zTranslatedNodes, kPositiveZChildren, renderer, handler); 564 } 565 566 DISPLAY_LIST_LOGD("%*sRestoreToCount %d", (level + 1) * 2, "", restoreTo); 567 handler(new (alloc) RestoreToCountOp(restoreTo), 568 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 569 renderer.setOverrideLayerAlpha(1.0f); 570} 571 572} /* namespace uirenderer */ 573} /* namespace android */ 574