RenderNode.cpp revision fe5e7b7346a54537b980796ceeca66bfdbd05561
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 <algorithm> 22 23#include <SkCanvas.h> 24#include <algorithm> 25 26#include <utils/Trace.h> 27 28#include "Debug.h" 29#include "DisplayListOp.h" 30#include "DisplayListLogBuffer.h" 31#include "utils/MathUtils.h" 32 33namespace android { 34namespace uirenderer { 35 36void RenderNode::outputLogBuffer(int fd) { 37 DisplayListLogBuffer& logBuffer = DisplayListLogBuffer::getInstance(); 38 if (logBuffer.isEmpty()) { 39 return; 40 } 41 42 FILE *file = fdopen(fd, "a"); 43 44 fprintf(file, "\nRecent DisplayList operations\n"); 45 logBuffer.outputCommands(file); 46 47 String8 cachesLog; 48 Caches::getInstance().dumpMemoryUsage(cachesLog); 49 fprintf(file, "\nCaches:\n%s", cachesLog.string()); 50 fprintf(file, "\n"); 51 52 fflush(file); 53} 54 55RenderNode::RenderNode() 56 : mDirtyPropertyFields(0) 57 , mNeedsDisplayListDataSync(false) 58 , mDisplayListData(0) 59 , mStagingDisplayListData(0) 60 , mNeedsAnimatorsSync(false) { 61} 62 63RenderNode::~RenderNode() { 64 delete mDisplayListData; 65 delete mStagingDisplayListData; 66} 67 68void RenderNode::setStagingDisplayList(DisplayListData* data) { 69 mNeedsDisplayListDataSync = true; 70 delete mStagingDisplayListData; 71 mStagingDisplayListData = data; 72 if (mStagingDisplayListData) { 73 Caches::getInstance().registerFunctors(mStagingDisplayListData->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 getName(), 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, getName()); 94} 95 96int RenderNode::getDebugSize() { 97 int size = sizeof(RenderNode); 98 if (mStagingDisplayListData) { 99 size += mStagingDisplayListData->allocator.usedSize(); 100 } 101 if (mDisplayListData && mDisplayListData != mStagingDisplayListData) { 102 size += mDisplayListData->allocator.usedSize(); 103 } 104 return size; 105} 106 107void RenderNode::prepareTree(TreeInfo& info) { 108 ATRACE_CALL(); 109 110 prepareTreeImpl(info); 111} 112 113void RenderNode::prepareTreeImpl(TreeInfo& info) { 114 if (info.performStagingPush) { 115 pushStagingChanges(info); 116 } 117 if (info.evaluateAnimations) { 118 evaluateAnimations(info); 119 } 120 prepareSubTree(info, mDisplayListData); 121} 122 123class PushAnimatorsFunctor { 124public: 125 PushAnimatorsFunctor(RenderNode* target, TreeInfo& info) 126 : mTarget(target), mInfo(info) {} 127 128 bool operator() (const sp<BaseRenderNodeAnimator>& animator) { 129 animator->setupStartValueIfNecessary(mTarget, mInfo); 130 return animator->isFinished(); 131 } 132private: 133 RenderNode* mTarget; 134 TreeInfo& mInfo; 135}; 136 137void RenderNode::pushStagingChanges(TreeInfo& info) { 138 // Push the animators first so that setupStartValueIfNecessary() is called 139 // before properties() is trampled by stagingProperties(), as they are 140 // required by some animators. 141 if (mNeedsAnimatorsSync) { 142 mAnimators.resize(mStagingAnimators.size()); 143 std::vector< sp<BaseRenderNodeAnimator> >::iterator it; 144 PushAnimatorsFunctor functor(this, info); 145 // hint: this means copy_if_not() 146 it = std::remove_copy_if(mStagingAnimators.begin(), mStagingAnimators.end(), 147 mAnimators.begin(), functor); 148 mAnimators.resize(std::distance(mAnimators.begin(), it)); 149 } 150 if (mDirtyPropertyFields) { 151 mDirtyPropertyFields = 0; 152 mProperties = mStagingProperties; 153 } 154 if (mNeedsDisplayListDataSync) { 155 mNeedsDisplayListDataSync = false; 156 // Do a push pass on the old tree to handle freeing DisplayListData 157 // that are no longer used 158 TreeInfo oldTreeInfo; 159 prepareSubTree(oldTreeInfo, mDisplayListData); 160 // TODO: The damage for the old tree should be accounted for 161 delete mDisplayListData; 162 mDisplayListData = mStagingDisplayListData; 163 mStagingDisplayListData = 0; 164 } 165} 166 167class AnimateFunctor { 168public: 169 AnimateFunctor(RenderNode* target, TreeInfo& info) 170 : mTarget(target), mInfo(info) {} 171 172 bool operator() (const sp<BaseRenderNodeAnimator>& animator) { 173 return animator->animate(mTarget, mInfo); 174 } 175private: 176 RenderNode* mTarget; 177 TreeInfo& mInfo; 178}; 179 180void RenderNode::evaluateAnimations(TreeInfo& info) { 181 if (!mAnimators.size()) return; 182 183 AnimateFunctor functor(this, info); 184 std::vector< sp<BaseRenderNodeAnimator> >::iterator newEnd; 185 newEnd = std::remove_if(mAnimators.begin(), mAnimators.end(), functor); 186 mAnimators.erase(newEnd, mAnimators.end()); 187 mProperties.updateMatrix(); 188 info.out.hasAnimations |= mAnimators.size(); 189} 190 191void RenderNode::prepareSubTree(TreeInfo& info, DisplayListData* subtree) { 192 if (subtree) { 193 TextureCache& cache = Caches::getInstance().textureCache; 194 info.out.hasFunctors |= subtree->functorCount; 195 // TODO: Fix ownedBitmapResources to not require disabling prepareTextures 196 // and thus falling out of async drawing path. 197 if (subtree->ownedBitmapResources.size()) { 198 info.prepareTextures = false; 199 } 200 for (size_t i = 0; info.prepareTextures && i < subtree->bitmapResources.size(); i++) { 201 info.prepareTextures = cache.prefetchAndMarkInUse(subtree->bitmapResources[i]); 202 } 203 for (size_t i = 0; i < subtree->children().size(); i++) { 204 RenderNode* childNode = subtree->children()[i]->mDisplayList; 205 childNode->prepareTreeImpl(info); 206 } 207 } 208} 209 210/* 211 * For property operations, we pass a savecount of 0, since the operations aren't part of the 212 * displaylist, and thus don't have to compensate for the record-time/playback-time discrepancy in 213 * base saveCount (i.e., how RestoreToCount uses saveCount + properties().getCount()) 214 */ 215#define PROPERTY_SAVECOUNT 0 216 217template <class T> 218void RenderNode::setViewProperties(OpenGLRenderer& renderer, T& handler) { 219#if DEBUG_DISPLAY_LIST 220 properties().debugOutputProperties(handler.level() + 1); 221#endif 222 if (properties().getLeft() != 0 || properties().getTop() != 0) { 223 renderer.translate(properties().getLeft(), properties().getTop()); 224 } 225 if (properties().getStaticMatrix()) { 226 renderer.concatMatrix(properties().getStaticMatrix()); 227 } else if (properties().getAnimationMatrix()) { 228 renderer.concatMatrix(properties().getAnimationMatrix()); 229 } 230 if (properties().hasTransformMatrix()) { 231 if (properties().isTransformTranslateOnly()) { 232 renderer.translate(properties().getTranslationX(), properties().getTranslationY()); 233 } else { 234 renderer.concatMatrix(*properties().getTransformMatrix()); 235 } 236 } 237 bool clipToBoundsNeeded = properties().getCaching() ? false : properties().getClipToBounds(); 238 if (properties().getAlpha() < 1) { 239 if (properties().getCaching()) { 240 renderer.setOverrideLayerAlpha(properties().getAlpha()); 241 } else if (!properties().getHasOverlappingRendering()) { 242 renderer.scaleAlpha(properties().getAlpha()); 243 } else { 244 // TODO: should be able to store the size of a DL at record time and not 245 // have to pass it into this call. In fact, this information might be in the 246 // location/size info that we store with the new native transform data. 247 int saveFlags = SkCanvas::kHasAlphaLayer_SaveFlag; 248 if (clipToBoundsNeeded) { 249 saveFlags |= SkCanvas::kClipToLayer_SaveFlag; 250 clipToBoundsNeeded = false; // clipping done by saveLayer 251 } 252 253 SaveLayerOp* op = new (handler.allocator()) SaveLayerOp( 254 0, 0, properties().getWidth(), properties().getHeight(), 255 properties().getAlpha() * 255, saveFlags); 256 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 257 } 258 } 259 if (clipToBoundsNeeded) { 260 ClipRectOp* op = new (handler.allocator()) ClipRectOp( 261 0, 0, properties().getWidth(), properties().getHeight(), SkRegion::kIntersect_Op); 262 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 263 } 264 265 if (CC_UNLIKELY(properties().hasClippingPath())) { 266 ClipPathOp* op = new (handler.allocator()) ClipPathOp( 267 properties().getClippingPath(), properties().getClippingPathOp()); 268 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 269 } 270} 271 272/** 273 * Apply property-based transformations to input matrix 274 * 275 * If true3dTransform is set to true, the transform applied to the input matrix will use true 4x4 276 * matrix computation instead of the Skia 3x3 matrix + camera hackery. 277 */ 278void RenderNode::applyViewPropertyTransforms(mat4& matrix, bool true3dTransform) { 279 if (properties().getLeft() != 0 || properties().getTop() != 0) { 280 matrix.translate(properties().getLeft(), properties().getTop()); 281 } 282 if (properties().getStaticMatrix()) { 283 mat4 stat(*properties().getStaticMatrix()); 284 matrix.multiply(stat); 285 } else if (properties().getAnimationMatrix()) { 286 mat4 anim(*properties().getAnimationMatrix()); 287 matrix.multiply(anim); 288 } 289 290 bool applyTranslationZ = true3dTransform && !MathUtils::isZero(properties().getZ()); 291 if (properties().hasTransformMatrix() || applyTranslationZ) { 292 if (properties().isTransformTranslateOnly()) { 293 matrix.translate(properties().getTranslationX(), properties().getTranslationY(), 294 true3dTransform ? properties().getZ() : 0.0f); 295 } else { 296 if (!true3dTransform) { 297 matrix.multiply(*properties().getTransformMatrix()); 298 } else { 299 mat4 true3dMat; 300 true3dMat.loadTranslate( 301 properties().getPivotX() + properties().getTranslationX(), 302 properties().getPivotY() + properties().getTranslationY(), 303 properties().getZ()); 304 true3dMat.rotate(properties().getRotationX(), 1, 0, 0); 305 true3dMat.rotate(properties().getRotationY(), 0, 1, 0); 306 true3dMat.rotate(properties().getRotation(), 0, 0, 1); 307 true3dMat.scale(properties().getScaleX(), properties().getScaleY(), 1); 308 true3dMat.translate(-properties().getPivotX(), -properties().getPivotY()); 309 310 matrix.multiply(true3dMat); 311 } 312 } 313 } 314} 315 316/** 317 * Organizes the DisplayList hierarchy to prepare for background projection reordering. 318 * 319 * This should be called before a call to defer() or drawDisplayList() 320 * 321 * Each DisplayList that serves as a 3d root builds its list of composited children, 322 * which are flagged to not draw in the standard draw loop. 323 */ 324void RenderNode::computeOrdering() { 325 ATRACE_CALL(); 326 mProjectedNodes.clear(); 327 328 // TODO: create temporary DDLOp and call computeOrderingImpl on top DisplayList so that 329 // transform properties are applied correctly to top level children 330 if (mDisplayListData == NULL) return; 331 for (unsigned int i = 0; i < mDisplayListData->children().size(); i++) { 332 DrawDisplayListOp* childOp = mDisplayListData->children()[i]; 333 childOp->mDisplayList->computeOrderingImpl(childOp, 334 properties().getOutline().getPath(), &mProjectedNodes, &mat4::identity()); 335 } 336} 337 338void RenderNode::computeOrderingImpl( 339 DrawDisplayListOp* opState, 340 const SkPath* outlineOfProjectionSurface, 341 Vector<DrawDisplayListOp*>* compositedChildrenOfProjectionSurface, 342 const mat4* transformFromProjectionSurface) { 343 mProjectedNodes.clear(); 344 if (mDisplayListData == NULL || mDisplayListData->isEmpty()) return; 345 346 // TODO: should avoid this calculation in most cases 347 // TODO: just calculate single matrix, down to all leaf composited elements 348 Matrix4 localTransformFromProjectionSurface(*transformFromProjectionSurface); 349 localTransformFromProjectionSurface.multiply(opState->mTransformFromParent); 350 351 if (properties().getProjectBackwards()) { 352 // composited projectee, flag for out of order draw, save matrix, and store in proj surface 353 opState->mSkipInOrderDraw = true; 354 opState->mTransformFromCompositingAncestor.load(localTransformFromProjectionSurface); 355 compositedChildrenOfProjectionSurface->add(opState); 356 } else { 357 // standard in order draw 358 opState->mSkipInOrderDraw = false; 359 } 360 361 if (mDisplayListData->children().size() > 0) { 362 const bool isProjectionReceiver = mDisplayListData->projectionReceiveIndex >= 0; 363 bool haveAppliedPropertiesToProjection = false; 364 for (unsigned int i = 0; i < mDisplayListData->children().size(); i++) { 365 DrawDisplayListOp* childOp = mDisplayListData->children()[i]; 366 RenderNode* child = childOp->mDisplayList; 367 368 const SkPath* projectionOutline = NULL; 369 Vector<DrawDisplayListOp*>* projectionChildren = NULL; 370 const mat4* projectionTransform = NULL; 371 if (isProjectionReceiver && !child->properties().getProjectBackwards()) { 372 // if receiving projections, collect projecting descendent 373 374 // Note that if a direct descendent is projecting backwards, we pass it's 375 // grandparent projection collection, since it shouldn't project onto it's 376 // parent, where it will already be drawing. 377 projectionOutline = properties().getOutline().getPath(); 378 projectionChildren = &mProjectedNodes; 379 projectionTransform = &mat4::identity(); 380 } else { 381 if (!haveAppliedPropertiesToProjection) { 382 applyViewPropertyTransforms(localTransformFromProjectionSurface); 383 haveAppliedPropertiesToProjection = true; 384 } 385 projectionOutline = outlineOfProjectionSurface; 386 projectionChildren = compositedChildrenOfProjectionSurface; 387 projectionTransform = &localTransformFromProjectionSurface; 388 } 389 child->computeOrderingImpl(childOp, 390 projectionOutline, projectionChildren, projectionTransform); 391 } 392 } 393} 394 395class DeferOperationHandler { 396public: 397 DeferOperationHandler(DeferStateStruct& deferStruct, int level) 398 : mDeferStruct(deferStruct), mLevel(level) {} 399 inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) { 400 operation->defer(mDeferStruct, saveCount, mLevel, clipToBounds); 401 } 402 inline LinearAllocator& allocator() { return *(mDeferStruct.mAllocator); } 403 inline void startMark(const char* name) {} // do nothing 404 inline void endMark() {} 405 inline int level() { return mLevel; } 406 inline int replayFlags() { return mDeferStruct.mReplayFlags; } 407 408private: 409 DeferStateStruct& mDeferStruct; 410 const int mLevel; 411}; 412 413void RenderNode::deferNodeTree(DeferStateStruct& deferStruct) { 414 DeferOperationHandler handler(deferStruct, 0); 415 if (MathUtils::isPositive(properties().getZ())) { 416 issueDrawShadowOperation(Matrix4::identity(), handler); 417 } 418 issueOperations<DeferOperationHandler>(deferStruct.mRenderer, handler); 419} 420 421void RenderNode::deferNodeInParent(DeferStateStruct& deferStruct, const int level) { 422 DeferOperationHandler handler(deferStruct, level); 423 issueOperations<DeferOperationHandler>(deferStruct.mRenderer, handler); 424} 425 426class ReplayOperationHandler { 427public: 428 ReplayOperationHandler(ReplayStateStruct& replayStruct, int level) 429 : mReplayStruct(replayStruct), mLevel(level) {} 430 inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) { 431#if DEBUG_DISPLAY_LIST_OPS_AS_EVENTS 432 mReplayStruct.mRenderer.eventMark(operation->name()); 433#endif 434 operation->replay(mReplayStruct, saveCount, mLevel, clipToBounds); 435 } 436 inline LinearAllocator& allocator() { return *(mReplayStruct.mAllocator); } 437 inline void startMark(const char* name) { 438 mReplayStruct.mRenderer.startMark(name); 439 } 440 inline void endMark() { 441 mReplayStruct.mRenderer.endMark(); 442 } 443 inline int level() { return mLevel; } 444 inline int replayFlags() { return mReplayStruct.mReplayFlags; } 445 446private: 447 ReplayStateStruct& mReplayStruct; 448 const int mLevel; 449}; 450 451void RenderNode::replayNodeTree(ReplayStateStruct& replayStruct) { 452 ReplayOperationHandler handler(replayStruct, 0); 453 if (MathUtils::isPositive(properties().getZ())) { 454 issueDrawShadowOperation(Matrix4::identity(), handler); 455 } 456 issueOperations<ReplayOperationHandler>(replayStruct.mRenderer, handler); 457} 458 459void RenderNode::replayNodeInParent(ReplayStateStruct& replayStruct, const int level) { 460 ReplayOperationHandler handler(replayStruct, level); 461 issueOperations<ReplayOperationHandler>(replayStruct.mRenderer, handler); 462} 463 464void RenderNode::buildZSortedChildList(Vector<ZDrawDisplayListOpPair>& zTranslatedNodes) { 465 if (mDisplayListData == NULL || mDisplayListData->children().size() == 0) return; 466 467 for (unsigned int i = 0; i < mDisplayListData->children().size(); i++) { 468 DrawDisplayListOp* childOp = mDisplayListData->children()[i]; 469 RenderNode* child = childOp->mDisplayList; 470 float childZ = child->properties().getZ(); 471 472 if (!MathUtils::isZero(childZ)) { 473 zTranslatedNodes.add(ZDrawDisplayListOpPair(childZ, childOp)); 474 childOp->mSkipInOrderDraw = true; 475 } else if (!child->properties().getProjectBackwards()) { 476 // regular, in order drawing DisplayList 477 childOp->mSkipInOrderDraw = false; 478 } 479 } 480 481 // Z sort 3d children (stable-ness makes z compare fall back to standard drawing order) 482 std::stable_sort(zTranslatedNodes.begin(), zTranslatedNodes.end()); 483} 484 485template <class T> 486void RenderNode::issueDrawShadowOperation(const Matrix4& transformFromParent, T& handler) { 487 if (properties().getAlpha() <= 0.0f || properties().getOutline().isEmpty()) return; 488 489 mat4 shadowMatrixXY(transformFromParent); 490 applyViewPropertyTransforms(shadowMatrixXY); 491 492 // Z matrix needs actual 3d transformation, so mapped z values will be correct 493 mat4 shadowMatrixZ(transformFromParent); 494 applyViewPropertyTransforms(shadowMatrixZ, true); 495 496 const SkPath* outlinePath = properties().getOutline().getPath(); 497 const RevealClip& revealClip = properties().getRevealClip(); 498 const SkPath* revealClipPath = revealClip.hasConvexClip() 499 ? revealClip.getPath() : NULL; // only pass the reveal clip's path if it's convex 500 501 if (revealClipPath && revealClipPath->isEmpty()) return; 502 503 /** 504 * The drawing area of the caster is always the same as the its perimeter (which 505 * the shadow system uses) *except* in the inverse clip case. Inform the shadow 506 * system that the caster's drawing area (as opposed to its perimeter) has been 507 * clipped, so that it knows the caster can't be opaque. 508 */ 509 bool casterUnclipped = !revealClip.willClip() || revealClip.hasConvexClip(); 510 511 DisplayListOp* shadowOp = new (handler.allocator()) DrawShadowOp( 512 shadowMatrixXY, shadowMatrixZ, 513 properties().getAlpha(), casterUnclipped, 514 outlinePath, revealClipPath); 515 handler(shadowOp, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 516} 517 518#define SHADOW_DELTA 0.1f 519 520template <class T> 521void RenderNode::issueOperationsOf3dChildren(const Vector<ZDrawDisplayListOpPair>& zTranslatedNodes, 522 ChildrenSelectMode mode, OpenGLRenderer& renderer, T& handler) { 523 const int size = zTranslatedNodes.size(); 524 if (size == 0 525 || (mode == kNegativeZChildren && zTranslatedNodes[0].key > 0.0f) 526 || (mode == kPositiveZChildren && zTranslatedNodes[size - 1].key < 0.0f)) { 527 // no 3d children to draw 528 return; 529 } 530 531 /** 532 * Draw shadows and (potential) casters mostly in order, but allow the shadows of casters 533 * with very similar Z heights to draw together. 534 * 535 * This way, if Views A & B have the same Z height and are both casting shadows, the shadows are 536 * underneath both, and neither's shadow is drawn on top of the other. 537 */ 538 const size_t nonNegativeIndex = findNonNegativeIndex(zTranslatedNodes); 539 size_t drawIndex, shadowIndex, endIndex; 540 if (mode == kNegativeZChildren) { 541 drawIndex = 0; 542 endIndex = nonNegativeIndex; 543 shadowIndex = endIndex; // draw no shadows 544 } else { 545 drawIndex = nonNegativeIndex; 546 endIndex = size; 547 shadowIndex = drawIndex; // potentially draw shadow for each pos Z child 548 } 549 550 DISPLAY_LIST_LOGD("%*s%d %s 3d children:", (handler.level() + 1) * 2, "", 551 endIndex - drawIndex, mode == kNegativeZChildren ? "negative" : "positive"); 552 553 float lastCasterZ = 0.0f; 554 while (shadowIndex < endIndex || drawIndex < endIndex) { 555 if (shadowIndex < endIndex) { 556 DrawDisplayListOp* casterOp = zTranslatedNodes[shadowIndex].value; 557 RenderNode* caster = casterOp->mDisplayList; 558 const float casterZ = zTranslatedNodes[shadowIndex].key; 559 // attempt to render the shadow if the caster about to be drawn is its caster, 560 // OR if its caster's Z value is similar to the previous potential caster 561 if (shadowIndex == drawIndex || casterZ - lastCasterZ < SHADOW_DELTA) { 562 caster->issueDrawShadowOperation(casterOp->mTransformFromParent, handler); 563 564 lastCasterZ = casterZ; // must do this even if current caster not casting a shadow 565 shadowIndex++; 566 continue; 567 } 568 } 569 570 // only the actual child DL draw needs to be in save/restore, 571 // since it modifies the renderer's matrix 572 int restoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 573 574 DrawDisplayListOp* childOp = zTranslatedNodes[drawIndex].value; 575 RenderNode* child = childOp->mDisplayList; 576 577 renderer.concatMatrix(childOp->mTransformFromParent); 578 childOp->mSkipInOrderDraw = false; // this is horrible, I'm so sorry everyone 579 handler(childOp, renderer.getSaveCount() - 1, properties().getClipToBounds()); 580 childOp->mSkipInOrderDraw = true; 581 582 renderer.restoreToCount(restoreTo); 583 drawIndex++; 584 } 585} 586 587template <class T> 588void RenderNode::issueOperationsOfProjectedChildren(OpenGLRenderer& renderer, T& handler) { 589 DISPLAY_LIST_LOGD("%*s%d projected children:", (handler.level() + 1) * 2, "", mProjectedNodes.size()); 590 const SkPath* projectionReceiverOutline = properties().getOutline().getPath(); 591 bool maskProjecteesWithPath = projectionReceiverOutline != NULL 592 && !projectionReceiverOutline->isRect(NULL); 593 int restoreTo = renderer.getSaveCount(); 594 595 // If the projection reciever has an outline, we mask each of the projected rendernodes to it 596 // Either with clipRect, or special saveLayer masking 597 LinearAllocator& alloc = handler.allocator(); 598 if (projectionReceiverOutline != NULL) { 599 const SkRect& outlineBounds = projectionReceiverOutline->getBounds(); 600 if (projectionReceiverOutline->isRect(NULL)) { 601 // mask to the rect outline simply with clipRect 602 handler(new (alloc) SaveOp(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag), 603 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 604 ClipRectOp* clipOp = new (alloc) ClipRectOp( 605 outlineBounds.left(), outlineBounds.top(), 606 outlineBounds.right(), outlineBounds.bottom(), SkRegion::kIntersect_Op); 607 handler(clipOp, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 608 } else { 609 // wrap the projected RenderNodes with a SaveLayer that will mask to the outline 610 SaveLayerOp* op = new (alloc) SaveLayerOp( 611 outlineBounds.left(), outlineBounds.top(), 612 outlineBounds.right(), outlineBounds.bottom(), 613 255, SkCanvas::kARGB_ClipLayer_SaveFlag); 614 op->setMask(projectionReceiverOutline); 615 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 616 617 /* TODO: add optimizations here to take advantage of placement/size of projected 618 * children (which may shrink saveLayer area significantly). This is dependent on 619 * passing actual drawing/dirtying bounds of projected content down to native. 620 */ 621 } 622 } 623 624 // draw projected nodes 625 for (size_t i = 0; i < mProjectedNodes.size(); i++) { 626 DrawDisplayListOp* childOp = mProjectedNodes[i]; 627 628 // matrix save, concat, and restore can be done safely without allocating operations 629 int restoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 630 renderer.concatMatrix(childOp->mTransformFromCompositingAncestor); 631 childOp->mSkipInOrderDraw = false; // this is horrible, I'm so sorry everyone 632 handler(childOp, renderer.getSaveCount() - 1, properties().getClipToBounds()); 633 childOp->mSkipInOrderDraw = true; 634 renderer.restoreToCount(restoreTo); 635 } 636 637 if (projectionReceiverOutline != NULL) { 638 handler(new (alloc) RestoreToCountOp(restoreTo), 639 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 640 } 641} 642 643/** 644 * This function serves both defer and replay modes, and will organize the displayList's component 645 * operations for a single frame: 646 * 647 * Every 'simple' state operation that affects just the matrix and alpha (or other factors of 648 * DeferredDisplayState) may be issued directly to the renderer, but complex operations (with custom 649 * defer logic) and operations in displayListOps are issued through the 'handler' which handles the 650 * defer vs replay logic, per operation 651 */ 652template <class T> 653void RenderNode::issueOperations(OpenGLRenderer& renderer, T& handler) { 654 const int level = handler.level(); 655 if (mDisplayListData->isEmpty() || properties().getAlpha() <= 0) { 656 DISPLAY_LIST_LOGD("%*sEmpty display list (%p, %s)", level * 2, "", this, getName()); 657 return; 658 } 659 660 handler.startMark(getName()); 661 662#if DEBUG_DISPLAY_LIST 663 const Rect& clipRect = renderer.getLocalClipBounds(); 664 DISPLAY_LIST_LOGD("%*sStart display list (%p, %s), localClipBounds: %.0f, %.0f, %.0f, %.0f", 665 level * 2, "", this, getName(), 666 clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); 667#endif 668 669 LinearAllocator& alloc = handler.allocator(); 670 int restoreTo = renderer.getSaveCount(); 671 handler(new (alloc) SaveOp(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag), 672 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 673 674 DISPLAY_LIST_LOGD("%*sSave %d %d", (level + 1) * 2, "", 675 SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag, restoreTo); 676 677 setViewProperties<T>(renderer, handler); 678 679 bool quickRejected = properties().getClipToBounds() 680 && renderer.quickRejectConservative(0, 0, properties().getWidth(), properties().getHeight()); 681 if (!quickRejected) { 682 if (mProperties.getOutline().willClip()) { 683 renderer.setClippingOutline(alloc, &(mProperties.getOutline())); 684 } 685 686 Vector<ZDrawDisplayListOpPair> zTranslatedNodes; 687 buildZSortedChildList(zTranslatedNodes); 688 689 // for 3d root, draw children with negative z values 690 issueOperationsOf3dChildren(zTranslatedNodes, kNegativeZChildren, renderer, handler); 691 692 DisplayListLogBuffer& logBuffer = DisplayListLogBuffer::getInstance(); 693 const int saveCountOffset = renderer.getSaveCount() - 1; 694 const int projectionReceiveIndex = mDisplayListData->projectionReceiveIndex; 695 for (unsigned int i = 0; i < mDisplayListData->displayListOps.size(); i++) { 696 DisplayListOp *op = mDisplayListData->displayListOps[i]; 697 698#if DEBUG_DISPLAY_LIST 699 op->output(level + 1); 700#endif 701 logBuffer.writeCommand(level, op->name()); 702 handler(op, saveCountOffset, properties().getClipToBounds()); 703 704 if (CC_UNLIKELY(i == projectionReceiveIndex && mProjectedNodes.size() > 0)) { 705 issueOperationsOfProjectedChildren(renderer, handler); 706 } 707 } 708 709 // for 3d root, draw children with positive z values 710 issueOperationsOf3dChildren(zTranslatedNodes, kPositiveZChildren, renderer, handler); 711 } 712 713 DISPLAY_LIST_LOGD("%*sRestoreToCount %d", (level + 1) * 2, "", restoreTo); 714 handler(new (alloc) RestoreToCountOp(restoreTo), 715 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 716 renderer.setOverrideLayerAlpha(1.0f); 717 718 DISPLAY_LIST_LOGD("%*sDone (%p, %s)", level * 2, "", this, getName()); 719 handler.endMark(); 720} 721 722} /* namespace uirenderer */ 723} /* namespace android */ 724