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 #include "RenderNode.h"
18 
19 #include "DamageAccumulator.h"
20 #include "Debug.h"
21 #if HWUI_NEW_OPS
22 #include "BakedOpRenderer.h"
23 #include "RecordedOp.h"
24 #include "OpDumper.h"
25 #endif
26 #include "DisplayListOp.h"
27 #include "LayerRenderer.h"
28 #include "OpenGLRenderer.h"
29 #include "TreeInfo.h"
30 #include "utils/MathUtils.h"
31 #include "utils/TraceUtils.h"
32 #include "renderthread/CanvasContext.h"
33 
34 #include "protos/hwui.pb.h"
35 #include "protos/ProtoHelpers.h"
36 
37 #include <algorithm>
38 #include <sstream>
39 #include <string>
40 
41 namespace android {
42 namespace uirenderer {
43 
debugDumpLayers(const char * prefix)44 void RenderNode::debugDumpLayers(const char* prefix) {
45 #if HWUI_NEW_OPS
46     LOG_ALWAYS_FATAL("TODO: dump layer");
47 #else
48     if (mLayer) {
49         ALOGD("%sNode %p (%s) has layer %p (fbo = %u, wasBuildLayered = %s)",
50                 prefix, this, getName(), mLayer, mLayer->getFbo(),
51                 mLayer->wasBuildLayered ? "true" : "false");
52     }
53 #endif
54     if (mDisplayList) {
55         for (auto&& child : mDisplayList->getChildren()) {
56             child->renderNode->debugDumpLayers(prefix);
57         }
58     }
59 }
60 
RenderNode()61 RenderNode::RenderNode()
62         : mDirtyPropertyFields(0)
63         , mNeedsDisplayListSync(false)
64         , mDisplayList(nullptr)
65         , mStagingDisplayList(nullptr)
66         , mAnimatorManager(*this)
67         , mParentCount(0) {
68 }
69 
~RenderNode()70 RenderNode::~RenderNode() {
71     deleteDisplayList(nullptr);
72     delete mStagingDisplayList;
73 #if HWUI_NEW_OPS
74     LOG_ALWAYS_FATAL_IF(mLayer, "layer missed detachment!");
75 #else
76     if (mLayer) {
77         ALOGW("Memory Warning: Layer %p missed its detachment, held on to for far too long!", mLayer);
78         mLayer->postDecStrong();
79         mLayer = nullptr;
80     }
81 #endif
82 }
83 
setStagingDisplayList(DisplayList * displayList,TreeObserver * observer)84 void RenderNode::setStagingDisplayList(DisplayList* displayList, TreeObserver* observer) {
85     mNeedsDisplayListSync = true;
86     delete mStagingDisplayList;
87     mStagingDisplayList = displayList;
88     // If mParentCount == 0 we are the sole reference to this RenderNode,
89     // so immediately free the old display list
90     if (!mParentCount && !mStagingDisplayList) {
91         deleteDisplayList(observer);
92     }
93 }
94 
95 /**
96  * This function is a simplified version of replay(), where we simply retrieve and log the
97  * display list. This function should remain in sync with the replay() function.
98  */
99 #if HWUI_NEW_OPS
output(uint32_t level,const char * label)100 void RenderNode::output(uint32_t level, const char* label) {
101     ALOGD("%s (%s %p%s%s%s%s%s)",
102             label,
103             getName(),
104             this,
105             (MathUtils::isZero(properties().getAlpha()) ? ", zero alpha" : ""),
106             (properties().hasShadow() ? ", casting shadow" : ""),
107             (isRenderable() ? "" : ", empty"),
108             (properties().getProjectBackwards() ? ", projected" : ""),
109             (mLayer != nullptr ? ", on HW Layer" : ""));
110     properties().debugOutputProperties(level + 1);
111 
112     if (mDisplayList) {
113         for (auto&& op : mDisplayList->getOps()) {
114             std::stringstream strout;
115             OpDumper::dump(*op, strout, level + 1);
116             if (op->opId == RecordedOpId::RenderNodeOp) {
117                 auto rnOp = reinterpret_cast<const RenderNodeOp*>(op);
118                 rnOp->renderNode->output(level + 1, strout.str().c_str());
119             } else {
120                 ALOGD("%s", strout.str().c_str());
121             }
122         }
123     }
124     ALOGD("%*s/RenderNode(%s %p)", level * 2, "", getName(), this);
125 }
126 #else
output(uint32_t level)127 void RenderNode::output(uint32_t level) {
128     ALOGD("%*sStart display list (%p, %s%s%s%s%s%s)", (level - 1) * 2, "", this,
129             getName(),
130             (MathUtils::isZero(properties().getAlpha()) ? ", zero alpha" : ""),
131             (properties().hasShadow() ? ", casting shadow" : ""),
132             (isRenderable() ? "" : ", empty"),
133             (properties().getProjectBackwards() ? ", projected" : ""),
134             (mLayer != nullptr ? ", on HW Layer" : ""));
135     ALOGD("%*s%s %d", level * 2, "", "Save", SaveFlags::MatrixClip);
136     properties().debugOutputProperties(level);
137     if (mDisplayList) {
138         // TODO: consider printing the chunk boundaries here
139         for (auto&& op : mDisplayList->getOps()) {
140             op->output(level, DisplayListOp::kOpLogFlag_Recurse);
141         }
142     }
143     ALOGD("%*sDone (%p, %s)", (level - 1) * 2, "", this, getName());
144     }
145 #endif
146 
copyTo(proto::RenderNode * pnode)147 void RenderNode::copyTo(proto::RenderNode *pnode) {
148     pnode->set_id(static_cast<uint64_t>(
149             reinterpret_cast<uintptr_t>(this)));
150     pnode->set_name(mName.string(), mName.length());
151 
152     proto::RenderProperties* pprops = pnode->mutable_properties();
153     pprops->set_left(properties().getLeft());
154     pprops->set_top(properties().getTop());
155     pprops->set_right(properties().getRight());
156     pprops->set_bottom(properties().getBottom());
157     pprops->set_clip_flags(properties().getClippingFlags());
158     pprops->set_alpha(properties().getAlpha());
159     pprops->set_translation_x(properties().getTranslationX());
160     pprops->set_translation_y(properties().getTranslationY());
161     pprops->set_translation_z(properties().getTranslationZ());
162     pprops->set_elevation(properties().getElevation());
163     pprops->set_rotation(properties().getRotation());
164     pprops->set_rotation_x(properties().getRotationX());
165     pprops->set_rotation_y(properties().getRotationY());
166     pprops->set_scale_x(properties().getScaleX());
167     pprops->set_scale_y(properties().getScaleY());
168     pprops->set_pivot_x(properties().getPivotX());
169     pprops->set_pivot_y(properties().getPivotY());
170     pprops->set_has_overlapping_rendering(properties().getHasOverlappingRendering());
171     pprops->set_pivot_explicitly_set(properties().isPivotExplicitlySet());
172     pprops->set_project_backwards(properties().getProjectBackwards());
173     pprops->set_projection_receiver(properties().isProjectionReceiver());
174     set(pprops->mutable_clip_bounds(), properties().getClipBounds());
175 
176     const Outline& outline = properties().getOutline();
177     if (outline.getType() != Outline::Type::None) {
178         proto::Outline* poutline = pprops->mutable_outline();
179         poutline->clear_path();
180         if (outline.getType() == Outline::Type::Empty) {
181             poutline->set_type(proto::Outline_Type_Empty);
182         } else if (outline.getType() == Outline::Type::ConvexPath) {
183             poutline->set_type(proto::Outline_Type_ConvexPath);
184             if (const SkPath* path = outline.getPath()) {
185                 set(poutline->mutable_path(), *path);
186             }
187         } else if (outline.getType() == Outline::Type::RoundRect) {
188             poutline->set_type(proto::Outline_Type_RoundRect);
189         } else {
190             ALOGW("Uknown outline type! %d", static_cast<int>(outline.getType()));
191             poutline->set_type(proto::Outline_Type_None);
192         }
193         poutline->set_should_clip(outline.getShouldClip());
194         poutline->set_alpha(outline.getAlpha());
195         poutline->set_radius(outline.getRadius());
196         set(poutline->mutable_bounds(), outline.getBounds());
197     } else {
198         pprops->clear_outline();
199     }
200 
201     const RevealClip& revealClip = properties().getRevealClip();
202     if (revealClip.willClip()) {
203         proto::RevealClip* prevealClip = pprops->mutable_reveal_clip();
204         prevealClip->set_x(revealClip.getX());
205         prevealClip->set_y(revealClip.getY());
206         prevealClip->set_radius(revealClip.getRadius());
207     } else {
208         pprops->clear_reveal_clip();
209     }
210 
211     pnode->clear_children();
212     if (mDisplayList) {
213         for (auto&& child : mDisplayList->getChildren()) {
214             child->renderNode->copyTo(pnode->add_children());
215         }
216     }
217 }
218 
getDebugSize()219 int RenderNode::getDebugSize() {
220     int size = sizeof(RenderNode);
221     if (mStagingDisplayList) {
222         size += mStagingDisplayList->getUsedSize();
223     }
224     if (mDisplayList && mDisplayList != mStagingDisplayList) {
225         size += mDisplayList->getUsedSize();
226     }
227     return size;
228 }
229 
prepareTree(TreeInfo & info)230 void RenderNode::prepareTree(TreeInfo& info) {
231     ATRACE_CALL();
232     LOG_ALWAYS_FATAL_IF(!info.damageAccumulator, "DamageAccumulator missing");
233 
234     // Functors don't correctly handle stencil usage of overdraw debugging - shove 'em in a layer.
235     bool functorsNeedLayer = Properties::debugOverdraw;
236 
237     prepareTreeImpl(info, functorsNeedLayer);
238 }
239 
addAnimator(const sp<BaseRenderNodeAnimator> & animator)240 void RenderNode::addAnimator(const sp<BaseRenderNodeAnimator>& animator) {
241     mAnimatorManager.addAnimator(animator);
242 }
243 
removeAnimator(const sp<BaseRenderNodeAnimator> & animator)244 void RenderNode::removeAnimator(const sp<BaseRenderNodeAnimator>& animator) {
245     mAnimatorManager.removeAnimator(animator);
246 }
247 
damageSelf(TreeInfo & info)248 void RenderNode::damageSelf(TreeInfo& info) {
249     if (isRenderable()) {
250         if (properties().getClipDamageToBounds()) {
251             info.damageAccumulator->dirty(0, 0, properties().getWidth(), properties().getHeight());
252         } else {
253             // Hope this is big enough?
254             // TODO: Get this from the display list ops or something
255             info.damageAccumulator->dirty(DIRTY_MIN, DIRTY_MIN, DIRTY_MAX, DIRTY_MAX);
256         }
257     }
258 }
259 
prepareLayer(TreeInfo & info,uint32_t dirtyMask)260 void RenderNode::prepareLayer(TreeInfo& info, uint32_t dirtyMask) {
261     LayerType layerType = properties().effectiveLayerType();
262     if (CC_UNLIKELY(layerType == LayerType::RenderLayer)) {
263         // Damage applied so far needs to affect our parent, but does not require
264         // the layer to be updated. So we pop/push here to clear out the current
265         // damage and get a clean state for display list or children updates to
266         // affect, which will require the layer to be updated
267         info.damageAccumulator->popTransform();
268         info.damageAccumulator->pushTransform(this);
269         if (dirtyMask & DISPLAY_LIST) {
270             damageSelf(info);
271         }
272     }
273 }
274 
createLayer(RenderState & renderState,uint32_t width,uint32_t height)275 static layer_t* createLayer(RenderState& renderState, uint32_t width, uint32_t height) {
276 #if HWUI_NEW_OPS
277     return renderState.layerPool().get(renderState, width, height);
278 #else
279     return LayerRenderer::createRenderLayer(renderState, width, height);
280 #endif
281 }
282 
destroyLayer(layer_t * layer)283 static void destroyLayer(layer_t* layer) {
284 #if HWUI_NEW_OPS
285     RenderState& renderState = layer->renderState;
286     renderState.layerPool().putOrDelete(layer);
287 #else
288     LayerRenderer::destroyLayer(layer);
289 #endif
290 }
291 
layerMatchesWidthAndHeight(layer_t * layer,int width,int height)292 static bool layerMatchesWidthAndHeight(layer_t* layer, int width, int height) {
293 #if HWUI_NEW_OPS
294     return layer->viewportWidth == (uint32_t) width && layer->viewportHeight == (uint32_t)height;
295 #else
296     return layer->layer.getWidth() == width && layer->layer.getHeight() == height;
297 #endif
298 }
299 
pushLayerUpdate(TreeInfo & info)300 void RenderNode::pushLayerUpdate(TreeInfo& info) {
301     LayerType layerType = properties().effectiveLayerType();
302     // If we are not a layer OR we cannot be rendered (eg, view was detached)
303     // we need to destroy any Layers we may have had previously
304     if (CC_LIKELY(layerType != LayerType::RenderLayer)
305             || CC_UNLIKELY(!isRenderable())
306             || CC_UNLIKELY(properties().getWidth() == 0)
307             || CC_UNLIKELY(properties().getHeight() == 0)) {
308         if (CC_UNLIKELY(mLayer)) {
309             destroyLayer(mLayer);
310             mLayer = nullptr;
311         }
312         return;
313     }
314 
315     bool transformUpdateNeeded = false;
316     if (!mLayer) {
317         mLayer = createLayer(info.canvasContext.getRenderState(), getWidth(), getHeight());
318 #if !HWUI_NEW_OPS
319         applyLayerPropertiesToLayer(info);
320 #endif
321         damageSelf(info);
322         transformUpdateNeeded = true;
323     } else if (!layerMatchesWidthAndHeight(mLayer, getWidth(), getHeight())) {
324 #if HWUI_NEW_OPS
325         // TODO: remove now irrelevant, currently enqueued damage (respecting damage ordering)
326         // Or, ideally, maintain damage between frames on node/layer so ordering is always correct
327         RenderState& renderState = mLayer->renderState;
328         if (properties().fitsOnLayer()) {
329             mLayer = renderState.layerPool().resize(mLayer, getWidth(), getHeight());
330         } else {
331 #else
332         if (!LayerRenderer::resizeLayer(mLayer, getWidth(), getHeight())) {
333 #endif
334             destroyLayer(mLayer);
335             mLayer = nullptr;
336         }
337         damageSelf(info);
338         transformUpdateNeeded = true;
339     }
340 
341     SkRect dirty;
342     info.damageAccumulator->peekAtDirty(&dirty);
343 
344     if (!mLayer) {
345         Caches::getInstance().dumpMemoryUsage();
346         if (info.errorHandler) {
347             std::ostringstream err;
348             err << "Unable to create layer for " << getName();
349             const int maxTextureSize = Caches::getInstance().maxTextureSize;
350             if (getWidth() > maxTextureSize || getHeight() > maxTextureSize) {
351                 err << ", size " << getWidth() << "x" << getHeight()
352                         << " exceeds max size " << maxTextureSize;
353             } else {
354                 err << ", see logcat for more info";
355             }
356             info.errorHandler->onError(err.str());
357         }
358         return;
359     }
360 
361     if (transformUpdateNeeded && mLayer) {
362         // update the transform in window of the layer to reset its origin wrt light source position
363         Matrix4 windowTransform;
364         info.damageAccumulator->computeCurrentTransform(&windowTransform);
365         mLayer->setWindowTransform(windowTransform);
366     }
367 
368 #if HWUI_NEW_OPS
369     info.layerUpdateQueue->enqueueLayerWithDamage(this, dirty);
370 #else
371     if (dirty.intersect(0, 0, getWidth(), getHeight())) {
372         dirty.roundOut(&dirty);
373         mLayer->updateDeferred(this, dirty.fLeft, dirty.fTop, dirty.fRight, dirty.fBottom);
374     }
375     // This is not inside the above if because we may have called
376     // updateDeferred on a previous prepare pass that didn't have a renderer
377     if (info.renderer && mLayer->deferredUpdateScheduled) {
378         info.renderer->pushLayerUpdate(mLayer);
379     }
380 #endif
381 
382     // There might be prefetched layers that need to be accounted for.
383     // That might be us, so tell CanvasContext that this layer is in the
384     // tree and should not be destroyed.
385     info.canvasContext.markLayerInUse(this);
386 }
387 
388 /**
389  * Traverse down the the draw tree to prepare for a frame.
390  *
391  * MODE_FULL = UI Thread-driven (thus properties must be synced), otherwise RT driven
392  *
393  * While traversing down the tree, functorsNeedLayer flag is set to true if anything that uses the
394  * stencil buffer may be needed. Views that use a functor to draw will be forced onto a layer.
395  */
396 void RenderNode::prepareTreeImpl(TreeInfo& info, bool functorsNeedLayer) {
397     info.damageAccumulator->pushTransform(this);
398 
399     if (info.mode == TreeInfo::MODE_FULL) {
400         pushStagingPropertiesChanges(info);
401     }
402     uint32_t animatorDirtyMask = 0;
403     if (CC_LIKELY(info.runAnimations)) {
404         animatorDirtyMask = mAnimatorManager.animate(info);
405     }
406 
407     bool willHaveFunctor = false;
408     if (info.mode == TreeInfo::MODE_FULL && mStagingDisplayList) {
409         willHaveFunctor = !mStagingDisplayList->getFunctors().empty();
410     } else if (mDisplayList) {
411         willHaveFunctor = !mDisplayList->getFunctors().empty();
412     }
413     bool childFunctorsNeedLayer = mProperties.prepareForFunctorPresence(
414             willHaveFunctor, functorsNeedLayer);
415 
416     if (CC_UNLIKELY(mPositionListener.get())) {
417         mPositionListener->onPositionUpdated(*this, info);
418     }
419 
420     prepareLayer(info, animatorDirtyMask);
421     if (info.mode == TreeInfo::MODE_FULL) {
422         pushStagingDisplayListChanges(info);
423     }
424     prepareSubTree(info, childFunctorsNeedLayer, mDisplayList);
425     pushLayerUpdate(info);
426 
427     info.damageAccumulator->popTransform();
428 }
429 
430 void RenderNode::syncProperties() {
431     mProperties = mStagingProperties;
432 }
433 
434 void RenderNode::pushStagingPropertiesChanges(TreeInfo& info) {
435     // Push the animators first so that setupStartValueIfNecessary() is called
436     // before properties() is trampled by stagingProperties(), as they are
437     // required by some animators.
438     if (CC_LIKELY(info.runAnimations)) {
439         mAnimatorManager.pushStaging();
440     }
441     if (mDirtyPropertyFields) {
442         mDirtyPropertyFields = 0;
443         damageSelf(info);
444         info.damageAccumulator->popTransform();
445         syncProperties();
446 #if !HWUI_NEW_OPS
447         applyLayerPropertiesToLayer(info);
448 #endif
449         // We could try to be clever and only re-damage if the matrix changed.
450         // However, we don't need to worry about that. The cost of over-damaging
451         // here is only going to be a single additional map rect of this node
452         // plus a rect join(). The parent's transform (and up) will only be
453         // performed once.
454         info.damageAccumulator->pushTransform(this);
455         damageSelf(info);
456     }
457 }
458 
459 #if !HWUI_NEW_OPS
460 void RenderNode::applyLayerPropertiesToLayer(TreeInfo& info) {
461     if (CC_LIKELY(!mLayer)) return;
462 
463     const LayerProperties& props = properties().layerProperties();
464     mLayer->setAlpha(props.alpha(), props.xferMode());
465     mLayer->setColorFilter(props.colorFilter());
466     mLayer->setBlend(props.needsBlending());
467 }
468 #endif
469 
470 void RenderNode::syncDisplayList(TreeInfo* info) {
471     // Make sure we inc first so that we don't fluctuate between 0 and 1,
472     // which would thrash the layer cache
473     if (mStagingDisplayList) {
474         for (auto&& child : mStagingDisplayList->getChildren()) {
475             child->renderNode->incParentRefCount();
476         }
477     }
478     deleteDisplayList(info ? info->observer : nullptr, info);
479     mDisplayList = mStagingDisplayList;
480     mStagingDisplayList = nullptr;
481     if (mDisplayList) {
482         for (auto& iter : mDisplayList->getFunctors()) {
483             (*iter.functor)(DrawGlInfo::kModeSync, nullptr);
484         }
485         for (size_t i = 0; i < mDisplayList->getPushStagingFunctors().size(); i++) {
486             (*mDisplayList->getPushStagingFunctors()[i])();
487         }
488     }
489 }
490 
491 void RenderNode::pushStagingDisplayListChanges(TreeInfo& info) {
492     if (mNeedsDisplayListSync) {
493         mNeedsDisplayListSync = false;
494         // Damage with the old display list first then the new one to catch any
495         // changes in isRenderable or, in the future, bounds
496         damageSelf(info);
497         syncDisplayList(&info);
498         damageSelf(info);
499     }
500 }
501 
502 void RenderNode::deleteDisplayList(TreeObserver* observer, TreeInfo* info) {
503     if (mDisplayList) {
504         for (auto&& child : mDisplayList->getChildren()) {
505             child->renderNode->decParentRefCount(observer, info);
506         }
507     }
508     delete mDisplayList;
509     mDisplayList = nullptr;
510 }
511 
512 void RenderNode::prepareSubTree(TreeInfo& info, bool functorsNeedLayer, DisplayList* subtree) {
513     if (subtree) {
514         TextureCache& cache = Caches::getInstance().textureCache;
515         info.out.hasFunctors |= subtree->getFunctors().size();
516         for (auto&& bitmapResource : subtree->getBitmapResources()) {
517             void* ownerToken = &info.canvasContext;
518             info.prepareTextures = cache.prefetchAndMarkInUse(ownerToken, bitmapResource);
519         }
520         for (auto&& op : subtree->getChildren()) {
521             RenderNode* childNode = op->renderNode;
522 #if HWUI_NEW_OPS
523             info.damageAccumulator->pushTransform(&op->localMatrix);
524             bool childFunctorsNeedLayer = functorsNeedLayer; // TODO! || op->mRecordedWithPotentialStencilClip;
525 #else
526             info.damageAccumulator->pushTransform(&op->localMatrix);
527             bool childFunctorsNeedLayer = functorsNeedLayer
528                     // Recorded with non-rect clip, or canvas-rotated by parent
529                     || op->mRecordedWithPotentialStencilClip;
530 #endif
531             childNode->prepareTreeImpl(info, childFunctorsNeedLayer);
532             info.damageAccumulator->popTransform();
533         }
534     }
535 }
536 
537 void RenderNode::destroyHardwareResources(TreeObserver* observer, TreeInfo* info) {
538     if (mLayer) {
539         destroyLayer(mLayer);
540         mLayer = nullptr;
541     }
542     if (mDisplayList) {
543         for (auto&& child : mDisplayList->getChildren()) {
544             child->renderNode->destroyHardwareResources(observer, info);
545         }
546         if (mNeedsDisplayListSync) {
547             // Next prepare tree we are going to push a new display list, so we can
548             // drop our current one now
549             deleteDisplayList(observer, info);
550         }
551     }
552 }
553 
554 void RenderNode::decParentRefCount(TreeObserver* observer, TreeInfo* info) {
555     LOG_ALWAYS_FATAL_IF(!mParentCount, "already 0!");
556     mParentCount--;
557     if (!mParentCount) {
558         if (observer) {
559             observer->onMaybeRemovedFromTree(this);
560         }
561         if (CC_UNLIKELY(mPositionListener.get())) {
562             mPositionListener->onPositionLost(*this, info);
563         }
564         // If a child of ours is being attached to our parent then this will incorrectly
565         // destroy its hardware resources. However, this situation is highly unlikely
566         // and the failure is "just" that the layer is re-created, so this should
567         // be safe enough
568         destroyHardwareResources(observer, info);
569     }
570 }
571 
572 /*
573  * For property operations, we pass a savecount of 0, since the operations aren't part of the
574  * displaylist, and thus don't have to compensate for the record-time/playback-time discrepancy in
575  * base saveCount (i.e., how RestoreToCount uses saveCount + properties().getCount())
576  */
577 #define PROPERTY_SAVECOUNT 0
578 
579 template <class T>
580 void RenderNode::setViewProperties(OpenGLRenderer& renderer, T& handler) {
581 #if DEBUG_DISPLAY_LIST
582     properties().debugOutputProperties(handler.level() + 1);
583 #endif
584     if (properties().getLeft() != 0 || properties().getTop() != 0) {
585         renderer.translate(properties().getLeft(), properties().getTop());
586     }
587     if (properties().getStaticMatrix()) {
588         renderer.concatMatrix(*properties().getStaticMatrix());
589     } else if (properties().getAnimationMatrix()) {
590         renderer.concatMatrix(*properties().getAnimationMatrix());
591     }
592     if (properties().hasTransformMatrix()) {
593         if (properties().isTransformTranslateOnly()) {
594             renderer.translate(properties().getTranslationX(), properties().getTranslationY());
595         } else {
596             renderer.concatMatrix(*properties().getTransformMatrix());
597         }
598     }
599     const bool isLayer = properties().effectiveLayerType() != LayerType::None;
600     int clipFlags = properties().getClippingFlags();
601     if (properties().getAlpha() < 1) {
602         if (isLayer) {
603             clipFlags &= ~CLIP_TO_BOUNDS; // bounds clipping done by layer
604         }
605         if (CC_LIKELY(isLayer || !properties().getHasOverlappingRendering())) {
606             // simply scale rendering content's alpha
607             renderer.scaleAlpha(properties().getAlpha());
608         } else {
609             // savelayer needed to create an offscreen buffer
610             Rect layerBounds(0, 0, getWidth(), getHeight());
611             if (clipFlags) {
612                 properties().getClippingRectForFlags(clipFlags, &layerBounds);
613                 clipFlags = 0; // all clipping done by savelayer
614             }
615             SaveLayerOp* op = new (handler.allocator()) SaveLayerOp(
616                     layerBounds.left, layerBounds.top,
617                     layerBounds.right, layerBounds.bottom,
618                     (int) (properties().getAlpha() * 255),
619                     SaveFlags::HasAlphaLayer | SaveFlags::ClipToLayer);
620             handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds());
621         }
622 
623         if (CC_UNLIKELY(ATRACE_ENABLED() && properties().promotedToLayer())) {
624             // pretend alpha always causes savelayer to warn about
625             // performance problem affecting old versions
626             ATRACE_FORMAT("%s alpha caused saveLayer %dx%d", getName(),
627                     static_cast<int>(getWidth()),
628                     static_cast<int>(getHeight()));
629         }
630     }
631     if (clipFlags) {
632         Rect clipRect;
633         properties().getClippingRectForFlags(clipFlags, &clipRect);
634         ClipRectOp* op = new (handler.allocator()) ClipRectOp(
635                 clipRect.left, clipRect.top, clipRect.right, clipRect.bottom,
636                 SkRegion::kIntersect_Op);
637         handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds());
638     }
639 
640     // TODO: support nesting round rect clips
641     if (mProperties.getRevealClip().willClip()) {
642         Rect bounds;
643         mProperties.getRevealClip().getBounds(&bounds);
644         renderer.setClippingRoundRect(handler.allocator(), bounds, mProperties.getRevealClip().getRadius());
645     } else if (mProperties.getOutline().willClip()) {
646         renderer.setClippingOutline(handler.allocator(), &(mProperties.getOutline()));
647     }
648 }
649 
650 /**
651  * Apply property-based transformations to input matrix
652  *
653  * If true3dTransform is set to true, the transform applied to the input matrix will use true 4x4
654  * matrix computation instead of the Skia 3x3 matrix + camera hackery.
655  */
656 void RenderNode::applyViewPropertyTransforms(mat4& matrix, bool true3dTransform) const {
657     if (properties().getLeft() != 0 || properties().getTop() != 0) {
658         matrix.translate(properties().getLeft(), properties().getTop());
659     }
660     if (properties().getStaticMatrix()) {
661         mat4 stat(*properties().getStaticMatrix());
662         matrix.multiply(stat);
663     } else if (properties().getAnimationMatrix()) {
664         mat4 anim(*properties().getAnimationMatrix());
665         matrix.multiply(anim);
666     }
667 
668     bool applyTranslationZ = true3dTransform && !MathUtils::isZero(properties().getZ());
669     if (properties().hasTransformMatrix() || applyTranslationZ) {
670         if (properties().isTransformTranslateOnly()) {
671             matrix.translate(properties().getTranslationX(), properties().getTranslationY(),
672                     true3dTransform ? properties().getZ() : 0.0f);
673         } else {
674             if (!true3dTransform) {
675                 matrix.multiply(*properties().getTransformMatrix());
676             } else {
677                 mat4 true3dMat;
678                 true3dMat.loadTranslate(
679                         properties().getPivotX() + properties().getTranslationX(),
680                         properties().getPivotY() + properties().getTranslationY(),
681                         properties().getZ());
682                 true3dMat.rotate(properties().getRotationX(), 1, 0, 0);
683                 true3dMat.rotate(properties().getRotationY(), 0, 1, 0);
684                 true3dMat.rotate(properties().getRotation(), 0, 0, 1);
685                 true3dMat.scale(properties().getScaleX(), properties().getScaleY(), 1);
686                 true3dMat.translate(-properties().getPivotX(), -properties().getPivotY());
687 
688                 matrix.multiply(true3dMat);
689             }
690         }
691     }
692 }
693 
694 /**
695  * Organizes the DisplayList hierarchy to prepare for background projection reordering.
696  *
697  * This should be called before a call to defer() or drawDisplayList()
698  *
699  * Each DisplayList that serves as a 3d root builds its list of composited children,
700  * which are flagged to not draw in the standard draw loop.
701  */
702 void RenderNode::computeOrdering() {
703     ATRACE_CALL();
704     mProjectedNodes.clear();
705 
706     // TODO: create temporary DDLOp and call computeOrderingImpl on top DisplayList so that
707     // transform properties are applied correctly to top level children
708     if (mDisplayList == nullptr) return;
709     for (unsigned int i = 0; i < mDisplayList->getChildren().size(); i++) {
710         renderNodeOp_t* childOp = mDisplayList->getChildren()[i];
711         childOp->renderNode->computeOrderingImpl(childOp, &mProjectedNodes, &mat4::identity());
712     }
713 }
714 
715 void RenderNode::computeOrderingImpl(
716         renderNodeOp_t* opState,
717         std::vector<renderNodeOp_t*>* compositedChildrenOfProjectionSurface,
718         const mat4* transformFromProjectionSurface) {
719     mProjectedNodes.clear();
720     if (mDisplayList == nullptr || mDisplayList->isEmpty()) return;
721 
722     // TODO: should avoid this calculation in most cases
723     // TODO: just calculate single matrix, down to all leaf composited elements
724     Matrix4 localTransformFromProjectionSurface(*transformFromProjectionSurface);
725     localTransformFromProjectionSurface.multiply(opState->localMatrix);
726 
727     if (properties().getProjectBackwards()) {
728         // composited projectee, flag for out of order draw, save matrix, and store in proj surface
729         opState->skipInOrderDraw = true;
730         opState->transformFromCompositingAncestor = localTransformFromProjectionSurface;
731         compositedChildrenOfProjectionSurface->push_back(opState);
732     } else {
733         // standard in order draw
734         opState->skipInOrderDraw = false;
735     }
736 
737     if (mDisplayList->getChildren().size() > 0) {
738         const bool isProjectionReceiver = mDisplayList->projectionReceiveIndex >= 0;
739         bool haveAppliedPropertiesToProjection = false;
740         for (unsigned int i = 0; i < mDisplayList->getChildren().size(); i++) {
741             renderNodeOp_t* childOp = mDisplayList->getChildren()[i];
742             RenderNode* child = childOp->renderNode;
743 
744             std::vector<renderNodeOp_t*>* projectionChildren = nullptr;
745             const mat4* projectionTransform = nullptr;
746             if (isProjectionReceiver && !child->properties().getProjectBackwards()) {
747                 // if receiving projections, collect projecting descendant
748 
749                 // Note that if a direct descendant is projecting backwards, we pass its
750                 // grandparent projection collection, since it shouldn't project onto its
751                 // parent, where it will already be drawing.
752                 projectionChildren = &mProjectedNodes;
753                 projectionTransform = &mat4::identity();
754             } else {
755                 if (!haveAppliedPropertiesToProjection) {
756                     applyViewPropertyTransforms(localTransformFromProjectionSurface);
757                     haveAppliedPropertiesToProjection = true;
758                 }
759                 projectionChildren = compositedChildrenOfProjectionSurface;
760                 projectionTransform = &localTransformFromProjectionSurface;
761             }
762             child->computeOrderingImpl(childOp, projectionChildren, projectionTransform);
763         }
764     }
765 }
766 
767 class DeferOperationHandler {
768 public:
769     DeferOperationHandler(DeferStateStruct& deferStruct, int level)
770         : mDeferStruct(deferStruct), mLevel(level) {}
771     inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) {
772         operation->defer(mDeferStruct, saveCount, mLevel, clipToBounds);
773     }
774     inline LinearAllocator& allocator() { return *(mDeferStruct.mAllocator); }
775     inline void startMark(const char* name) {} // do nothing
776     inline void endMark() {}
777     inline int level() { return mLevel; }
778     inline int replayFlags() { return mDeferStruct.mReplayFlags; }
779     inline SkPath* allocPathForFrame() { return mDeferStruct.allocPathForFrame(); }
780 
781 private:
782     DeferStateStruct& mDeferStruct;
783     const int mLevel;
784 };
785 
786 void RenderNode::defer(DeferStateStruct& deferStruct, const int level) {
787     DeferOperationHandler handler(deferStruct, level);
788     issueOperations<DeferOperationHandler>(deferStruct.mRenderer, handler);
789 }
790 
791 class ReplayOperationHandler {
792 public:
793     ReplayOperationHandler(ReplayStateStruct& replayStruct, int level)
794         : mReplayStruct(replayStruct), mLevel(level) {}
795     inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) {
796 #if DEBUG_DISPLAY_LIST_OPS_AS_EVENTS
797         mReplayStruct.mRenderer.eventMark(operation->name());
798 #endif
799         operation->replay(mReplayStruct, saveCount, mLevel, clipToBounds);
800     }
801     inline LinearAllocator& allocator() { return *(mReplayStruct.mAllocator); }
802     inline void startMark(const char* name) {
803         mReplayStruct.mRenderer.startMark(name);
804     }
805     inline void endMark() {
806         mReplayStruct.mRenderer.endMark();
807     }
808     inline int level() { return mLevel; }
809     inline int replayFlags() { return mReplayStruct.mReplayFlags; }
810     inline SkPath* allocPathForFrame() { return mReplayStruct.allocPathForFrame(); }
811 
812 private:
813     ReplayStateStruct& mReplayStruct;
814     const int mLevel;
815 };
816 
817 void RenderNode::replay(ReplayStateStruct& replayStruct, const int level) {
818     ReplayOperationHandler handler(replayStruct, level);
819     issueOperations<ReplayOperationHandler>(replayStruct.mRenderer, handler);
820 }
821 
822 void RenderNode::buildZSortedChildList(const DisplayList::Chunk& chunk,
823         std::vector<ZDrawRenderNodeOpPair>& zTranslatedNodes) {
824 #if !HWUI_NEW_OPS
825     if (chunk.beginChildIndex == chunk.endChildIndex) return;
826 
827     for (unsigned int i = chunk.beginChildIndex; i < chunk.endChildIndex; i++) {
828         DrawRenderNodeOp* childOp = mDisplayList->getChildren()[i];
829         RenderNode* child = childOp->renderNode;
830         float childZ = child->properties().getZ();
831 
832         if (!MathUtils::isZero(childZ) && chunk.reorderChildren) {
833             zTranslatedNodes.push_back(ZDrawRenderNodeOpPair(childZ, childOp));
834             childOp->skipInOrderDraw = true;
835         } else if (!child->properties().getProjectBackwards()) {
836             // regular, in order drawing DisplayList
837             childOp->skipInOrderDraw = false;
838         }
839     }
840 
841     // Z sort any 3d children (stable-ness makes z compare fall back to standard drawing order)
842     std::stable_sort(zTranslatedNodes.begin(), zTranslatedNodes.end());
843 #endif
844 }
845 
846 template <class T>
847 void RenderNode::issueDrawShadowOperation(const Matrix4& transformFromParent, T& handler) {
848     if (properties().getAlpha() <= 0.0f
849             || properties().getOutline().getAlpha() <= 0.0f
850             || !properties().getOutline().getPath()
851             || properties().getScaleX() == 0
852             || properties().getScaleY() == 0) {
853         // no shadow to draw
854         return;
855     }
856 
857     mat4 shadowMatrixXY(transformFromParent);
858     applyViewPropertyTransforms(shadowMatrixXY);
859 
860     // Z matrix needs actual 3d transformation, so mapped z values will be correct
861     mat4 shadowMatrixZ(transformFromParent);
862     applyViewPropertyTransforms(shadowMatrixZ, true);
863 
864     const SkPath* casterOutlinePath = properties().getOutline().getPath();
865     const SkPath* revealClipPath = properties().getRevealClip().getPath();
866     if (revealClipPath && revealClipPath->isEmpty()) return;
867 
868     float casterAlpha = properties().getAlpha() * properties().getOutline().getAlpha();
869 
870 
871     // holds temporary SkPath to store the result of intersections
872     SkPath* frameAllocatedPath = nullptr;
873     const SkPath* outlinePath = casterOutlinePath;
874 
875     // intersect the outline with the reveal clip, if present
876     if (revealClipPath) {
877         frameAllocatedPath = handler.allocPathForFrame();
878 
879         Op(*outlinePath, *revealClipPath, kIntersect_SkPathOp, frameAllocatedPath);
880         outlinePath = frameAllocatedPath;
881     }
882 
883     // intersect the outline with the clipBounds, if present
884     if (properties().getClippingFlags() & CLIP_TO_CLIP_BOUNDS) {
885         if (!frameAllocatedPath) {
886             frameAllocatedPath = handler.allocPathForFrame();
887         }
888 
889         Rect clipBounds;
890         properties().getClippingRectForFlags(CLIP_TO_CLIP_BOUNDS, &clipBounds);
891         SkPath clipBoundsPath;
892         clipBoundsPath.addRect(clipBounds.left, clipBounds.top,
893                 clipBounds.right, clipBounds.bottom);
894 
895         Op(*outlinePath, clipBoundsPath, kIntersect_SkPathOp, frameAllocatedPath);
896         outlinePath = frameAllocatedPath;
897     }
898 
899     DisplayListOp* shadowOp  = new (handler.allocator()) DrawShadowOp(
900             shadowMatrixXY, shadowMatrixZ, casterAlpha, outlinePath);
901     handler(shadowOp, PROPERTY_SAVECOUNT, properties().getClipToBounds());
902 }
903 
904 #define SHADOW_DELTA 0.1f
905 
906 template <class T>
907 void RenderNode::issueOperationsOf3dChildren(ChildrenSelectMode mode,
908         const Matrix4& initialTransform, const std::vector<ZDrawRenderNodeOpPair>& zTranslatedNodes,
909         OpenGLRenderer& renderer, T& handler) {
910     const int size = zTranslatedNodes.size();
911     if (size == 0
912             || (mode == ChildrenSelectMode::NegativeZChildren && zTranslatedNodes[0].key > 0.0f)
913             || (mode == ChildrenSelectMode::PositiveZChildren && zTranslatedNodes[size - 1].key < 0.0f)) {
914         // no 3d children to draw
915         return;
916     }
917 
918     // Apply the base transform of the parent of the 3d children. This isolates
919     // 3d children of the current chunk from transformations made in previous chunks.
920     int rootRestoreTo = renderer.save(SaveFlags::Matrix);
921     renderer.setGlobalMatrix(initialTransform);
922 
923     /**
924      * Draw shadows and (potential) casters mostly in order, but allow the shadows of casters
925      * with very similar Z heights to draw together.
926      *
927      * This way, if Views A & B have the same Z height and are both casting shadows, the shadows are
928      * underneath both, and neither's shadow is drawn on top of the other.
929      */
930     const size_t nonNegativeIndex = findNonNegativeIndex(zTranslatedNodes);
931     size_t drawIndex, shadowIndex, endIndex;
932     if (mode == ChildrenSelectMode::NegativeZChildren) {
933         drawIndex = 0;
934         endIndex = nonNegativeIndex;
935         shadowIndex = endIndex; // draw no shadows
936     } else {
937         drawIndex = nonNegativeIndex;
938         endIndex = size;
939         shadowIndex = drawIndex; // potentially draw shadow for each pos Z child
940     }
941 
942     DISPLAY_LIST_LOGD("%*s%d %s 3d children:", (handler.level() + 1) * 2, "",
943             endIndex - drawIndex, mode == kNegativeZChildren ? "negative" : "positive");
944 
945     float lastCasterZ = 0.0f;
946     while (shadowIndex < endIndex || drawIndex < endIndex) {
947         if (shadowIndex < endIndex) {
948             DrawRenderNodeOp* casterOp = zTranslatedNodes[shadowIndex].value;
949             RenderNode* caster = casterOp->renderNode;
950             const float casterZ = zTranslatedNodes[shadowIndex].key;
951             // attempt to render the shadow if the caster about to be drawn is its caster,
952             // OR if its caster's Z value is similar to the previous potential caster
953             if (shadowIndex == drawIndex || casterZ - lastCasterZ < SHADOW_DELTA) {
954                 caster->issueDrawShadowOperation(casterOp->localMatrix, handler);
955 
956                 lastCasterZ = casterZ; // must do this even if current caster not casting a shadow
957                 shadowIndex++;
958                 continue;
959             }
960         }
961 
962         // only the actual child DL draw needs to be in save/restore,
963         // since it modifies the renderer's matrix
964         int restoreTo = renderer.save(SaveFlags::Matrix);
965 
966         DrawRenderNodeOp* childOp = zTranslatedNodes[drawIndex].value;
967 
968         renderer.concatMatrix(childOp->localMatrix);
969         childOp->skipInOrderDraw = false; // this is horrible, I'm so sorry everyone
970         handler(childOp, renderer.getSaveCount() - 1, properties().getClipToBounds());
971         childOp->skipInOrderDraw = true;
972 
973         renderer.restoreToCount(restoreTo);
974         drawIndex++;
975     }
976     renderer.restoreToCount(rootRestoreTo);
977 }
978 
979 template <class T>
980 void RenderNode::issueOperationsOfProjectedChildren(OpenGLRenderer& renderer, T& handler) {
981     DISPLAY_LIST_LOGD("%*s%d projected children:", (handler.level() + 1) * 2, "", mProjectedNodes.size());
982     const SkPath* projectionReceiverOutline = properties().getOutline().getPath();
983     int restoreTo = renderer.getSaveCount();
984 
985     LinearAllocator& alloc = handler.allocator();
986     handler(new (alloc) SaveOp(SaveFlags::MatrixClip),
987             PROPERTY_SAVECOUNT, properties().getClipToBounds());
988 
989     // Transform renderer to match background we're projecting onto
990     // (by offsetting canvas by translationX/Y of background rendernode, since only those are set)
991     const DisplayListOp* op =
992 #if HWUI_NEW_OPS
993             nullptr;
994     LOG_ALWAYS_FATAL("unsupported");
995 #else
996             (mDisplayList->getOps()[mDisplayList->projectionReceiveIndex]);
997 #endif
998     const DrawRenderNodeOp* backgroundOp = reinterpret_cast<const DrawRenderNodeOp*>(op);
999     const RenderProperties& backgroundProps = backgroundOp->renderNode->properties();
1000     renderer.translate(backgroundProps.getTranslationX(), backgroundProps.getTranslationY());
1001 
1002     // If the projection receiver has an outline, we mask projected content to it
1003     // (which we know, apriori, are all tessellated paths)
1004     renderer.setProjectionPathMask(alloc, projectionReceiverOutline);
1005 
1006     // draw projected nodes
1007     for (size_t i = 0; i < mProjectedNodes.size(); i++) {
1008         renderNodeOp_t* childOp = mProjectedNodes[i];
1009 
1010         // matrix save, concat, and restore can be done safely without allocating operations
1011         int restoreTo = renderer.save(SaveFlags::Matrix);
1012         renderer.concatMatrix(childOp->transformFromCompositingAncestor);
1013         childOp->skipInOrderDraw = false; // this is horrible, I'm so sorry everyone
1014         handler(childOp, renderer.getSaveCount() - 1, properties().getClipToBounds());
1015         childOp->skipInOrderDraw = true;
1016         renderer.restoreToCount(restoreTo);
1017     }
1018 
1019     handler(new (alloc) RestoreToCountOp(restoreTo),
1020             PROPERTY_SAVECOUNT, properties().getClipToBounds());
1021 }
1022 
1023 /**
1024  * This function serves both defer and replay modes, and will organize the displayList's component
1025  * operations for a single frame:
1026  *
1027  * Every 'simple' state operation that affects just the matrix and alpha (or other factors of
1028  * DeferredDisplayState) may be issued directly to the renderer, but complex operations (with custom
1029  * defer logic) and operations in displayListOps are issued through the 'handler' which handles the
1030  * defer vs replay logic, per operation
1031  */
1032 template <class T>
1033 void RenderNode::issueOperations(OpenGLRenderer& renderer, T& handler) {
1034     if (mDisplayList->isEmpty()) {
1035         DISPLAY_LIST_LOGD("%*sEmpty display list (%p, %s)", handler.level() * 2, "",
1036                 this, getName());
1037         return;
1038     }
1039 
1040 #if HWUI_NEW_OPS
1041     const bool drawLayer = false;
1042 #else
1043     const bool drawLayer = (mLayer && (&renderer != mLayer->renderer.get()));
1044 #endif
1045     // If we are updating the contents of mLayer, we don't want to apply any of
1046     // the RenderNode's properties to this issueOperations pass. Those will all
1047     // be applied when the layer is drawn, aka when this is true.
1048     const bool useViewProperties = (!mLayer || drawLayer);
1049     if (useViewProperties) {
1050         const Outline& outline = properties().getOutline();
1051         if (properties().getAlpha() <= 0
1052                 || (outline.getShouldClip() && outline.isEmpty())
1053                 || properties().getScaleX() == 0
1054                 || properties().getScaleY() == 0) {
1055             DISPLAY_LIST_LOGD("%*sRejected display list (%p, %s)", handler.level() * 2, "",
1056                     this, getName());
1057             return;
1058         }
1059     }
1060 
1061     handler.startMark(getName());
1062 
1063 #if DEBUG_DISPLAY_LIST
1064     const Rect& clipRect = renderer.getLocalClipBounds();
1065     DISPLAY_LIST_LOGD("%*sStart display list (%p, %s), localClipBounds: %.0f, %.0f, %.0f, %.0f",
1066             handler.level() * 2, "", this, getName(),
1067             clipRect.left, clipRect.top, clipRect.right, clipRect.bottom);
1068 #endif
1069 
1070     LinearAllocator& alloc = handler.allocator();
1071     int restoreTo = renderer.getSaveCount();
1072     handler(new (alloc) SaveOp(SaveFlags::MatrixClip),
1073             PROPERTY_SAVECOUNT, properties().getClipToBounds());
1074 
1075     DISPLAY_LIST_LOGD("%*sSave %d %d", (handler.level() + 1) * 2, "",
1076             SaveFlags::MatrixClip, restoreTo);
1077 
1078     if (useViewProperties) {
1079         setViewProperties<T>(renderer, handler);
1080     }
1081 
1082 #if HWUI_NEW_OPS
1083     LOG_ALWAYS_FATAL("legacy op traversal not supported");
1084 #else
1085     bool quickRejected = properties().getClipToBounds()
1086             && renderer.quickRejectConservative(0, 0, properties().getWidth(), properties().getHeight());
1087     if (!quickRejected) {
1088         Matrix4 initialTransform(*(renderer.currentTransform()));
1089         renderer.setBaseTransform(initialTransform);
1090 
1091         if (drawLayer) {
1092             handler(new (alloc) DrawLayerOp(mLayer),
1093                     renderer.getSaveCount() - 1, properties().getClipToBounds());
1094         } else {
1095             const int saveCountOffset = renderer.getSaveCount() - 1;
1096             const int projectionReceiveIndex = mDisplayList->projectionReceiveIndex;
1097             for (size_t chunkIndex = 0; chunkIndex < mDisplayList->getChunks().size(); chunkIndex++) {
1098                 const DisplayList::Chunk& chunk = mDisplayList->getChunks()[chunkIndex];
1099 
1100                 std::vector<ZDrawRenderNodeOpPair> zTranslatedNodes;
1101                 buildZSortedChildList(chunk, zTranslatedNodes);
1102 
1103                 issueOperationsOf3dChildren(ChildrenSelectMode::NegativeZChildren,
1104                         initialTransform, zTranslatedNodes, renderer, handler);
1105 
1106                 for (size_t opIndex = chunk.beginOpIndex; opIndex < chunk.endOpIndex; opIndex++) {
1107                     DisplayListOp *op = mDisplayList->getOps()[opIndex];
1108 #if DEBUG_DISPLAY_LIST
1109                     op->output(handler.level() + 1);
1110 #endif
1111                     handler(op, saveCountOffset, properties().getClipToBounds());
1112 
1113                     if (CC_UNLIKELY(!mProjectedNodes.empty() && projectionReceiveIndex >= 0 &&
1114                         opIndex == static_cast<size_t>(projectionReceiveIndex))) {
1115                         issueOperationsOfProjectedChildren(renderer, handler);
1116                     }
1117                 }
1118 
1119                 issueOperationsOf3dChildren(ChildrenSelectMode::PositiveZChildren,
1120                         initialTransform, zTranslatedNodes, renderer, handler);
1121             }
1122         }
1123     }
1124 #endif
1125 
1126     DISPLAY_LIST_LOGD("%*sRestoreToCount %d", (handler.level() + 1) * 2, "", restoreTo);
1127     handler(new (alloc) RestoreToCountOp(restoreTo),
1128             PROPERTY_SAVECOUNT, properties().getClipToBounds());
1129 
1130     DISPLAY_LIST_LOGD("%*sDone (%p, %s)", handler.level() * 2, "", this, getName());
1131     handler.endMark();
1132 }
1133 
1134 } /* namespace uirenderer */
1135 } /* namespace android */
1136