RenderNode.cpp revision 52622668f91c69ec718b356d2e0f8555fc88435f
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 : mNeedsPropertiesSync(false) 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 96void RenderNode::prepareTree(TreeInfo& info) { 97 ATRACE_CALL(); 98 99 prepareTreeImpl(info); 100} 101 102void RenderNode::prepareTreeImpl(TreeInfo& info) { 103 if (info.performStagingPush) { 104 pushStagingChanges(info); 105 } 106 if (info.evaluateAnimations) { 107 evaluateAnimations(info); 108 } 109 prepareSubTree(info, mDisplayListData); 110} 111 112static bool is_finished(const sp<RenderPropertyAnimator>& animator) { 113 return animator->isFinished(); 114} 115 116void RenderNode::pushStagingChanges(TreeInfo& info) { 117 if (mNeedsPropertiesSync) { 118 mNeedsPropertiesSync = false; 119 mProperties = mStagingProperties; 120 } 121 if (mNeedsAnimatorsSync) { 122 mAnimators.resize(mStagingAnimators.size()); 123 std::vector< sp<RenderPropertyAnimator> >::iterator it; 124 // hint: this means copy_if_not() 125 it = std::remove_copy_if(mStagingAnimators.begin(), mStagingAnimators.end(), 126 mAnimators.begin(), is_finished); 127 mAnimators.resize(std::distance(mAnimators.begin(), it)); 128 } 129 if (mNeedsDisplayListDataSync) { 130 mNeedsDisplayListDataSync = false; 131 // Do a push pass on the old tree to handle freeing DisplayListData 132 // that are no longer used 133 TreeInfo oldTreeInfo; 134 prepareSubTree(oldTreeInfo, mDisplayListData); 135 // TODO: The damage for the old tree should be accounted for 136 delete mDisplayListData; 137 mDisplayListData = mStagingDisplayListData; 138 mStagingDisplayListData = 0; 139 } 140} 141 142class AnimateFunctor { 143public: 144 AnimateFunctor(RenderProperties* target, TreeInfo& info) 145 : mTarget(target), mInfo(info) {} 146 147 bool operator() (sp<RenderPropertyAnimator>& animator) { 148 bool finished = animator->animate(mTarget, mInfo); 149 if (finished && mInfo.animationListener) { 150 mInfo.animationListener->onAnimationFinished(animator); 151 } 152 return finished; 153 } 154private: 155 RenderProperties* mTarget; 156 TreeInfo& mInfo; 157}; 158 159void RenderNode::evaluateAnimations(TreeInfo& info) { 160 if (!mAnimators.size()) return; 161 162 AnimateFunctor functor(&mProperties, info); 163 std::vector< sp<RenderPropertyAnimator> >::iterator newEnd; 164 newEnd = std::remove_if(mAnimators.begin(), mAnimators.end(), functor); 165 mAnimators.erase(newEnd, mAnimators.end()); 166 mProperties.updateMatrix(); 167 info.hasAnimations |= mAnimators.size(); 168} 169 170void RenderNode::prepareSubTree(TreeInfo& info, DisplayListData* subtree) { 171 if (subtree) { 172 TextureCache& cache = Caches::getInstance().textureCache; 173 info.hasFunctors |= subtree->functorCount; 174 // TODO: Fix ownedBitmapResources to not require disabling prepareTextures 175 // and thus falling out of async drawing path. 176 if (subtree->ownedBitmapResources.size()) { 177 info.prepareTextures = false; 178 } 179 for (size_t i = 0; info.prepareTextures && i < subtree->bitmapResources.size(); i++) { 180 info.prepareTextures = cache.prefetchAndMarkInUse(subtree->bitmapResources[i]); 181 } 182 for (size_t i = 0; i < subtree->children().size(); i++) { 183 RenderNode* childNode = subtree->children()[i]->mDisplayList; 184 childNode->prepareTreeImpl(info); 185 } 186 } 187} 188 189/* 190 * For property operations, we pass a savecount of 0, since the operations aren't part of the 191 * displaylist, and thus don't have to compensate for the record-time/playback-time discrepancy in 192 * base saveCount (i.e., how RestoreToCount uses saveCount + properties().getCount()) 193 */ 194#define PROPERTY_SAVECOUNT 0 195 196template <class T> 197void RenderNode::setViewProperties(OpenGLRenderer& renderer, T& handler) { 198#if DEBUG_DISPLAY_LIST 199 properties().debugOutputProperties(handler.level() + 1); 200#endif 201 if (properties().getLeft() != 0 || properties().getTop() != 0) { 202 renderer.translate(properties().getLeft(), properties().getTop()); 203 } 204 if (properties().getStaticMatrix()) { 205 renderer.concatMatrix(properties().getStaticMatrix()); 206 } else if (properties().getAnimationMatrix()) { 207 renderer.concatMatrix(properties().getAnimationMatrix()); 208 } 209 if (properties().hasTransformMatrix()) { 210 if (properties().isTransformTranslateOnly()) { 211 renderer.translate(properties().getTranslationX(), properties().getTranslationY()); 212 } else { 213 renderer.concatMatrix(*properties().getTransformMatrix()); 214 } 215 } 216 bool clipToBoundsNeeded = properties().getCaching() ? false : properties().getClipToBounds(); 217 if (properties().getAlpha() < 1) { 218 if (properties().getCaching()) { 219 renderer.setOverrideLayerAlpha(properties().getAlpha()); 220 } else if (!properties().getHasOverlappingRendering()) { 221 renderer.scaleAlpha(properties().getAlpha()); 222 } else { 223 // TODO: should be able to store the size of a DL at record time and not 224 // have to pass it into this call. In fact, this information might be in the 225 // location/size info that we store with the new native transform data. 226 int saveFlags = SkCanvas::kHasAlphaLayer_SaveFlag; 227 if (clipToBoundsNeeded) { 228 saveFlags |= SkCanvas::kClipToLayer_SaveFlag; 229 clipToBoundsNeeded = false; // clipping done by saveLayer 230 } 231 232 SaveLayerOp* op = new (handler.allocator()) SaveLayerOp( 233 0, 0, properties().getWidth(), properties().getHeight(), 234 properties().getAlpha() * 255, saveFlags); 235 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 236 } 237 } 238 if (clipToBoundsNeeded) { 239 ClipRectOp* op = new (handler.allocator()) ClipRectOp( 240 0, 0, properties().getWidth(), properties().getHeight(), SkRegion::kIntersect_Op); 241 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 242 } 243 244 if (CC_UNLIKELY(properties().hasClippingPath())) { 245 // TODO: optimize for round rect/circle clipping 246 const SkPath* path = properties().getClippingPath(); 247 ClipPathOp* op = new (handler.allocator()) ClipPathOp(path, SkRegion::kIntersect_Op); 248 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 249 } 250} 251 252/** 253 * Apply property-based transformations to input matrix 254 * 255 * If true3dTransform is set to true, the transform applied to the input matrix will use true 4x4 256 * matrix computation instead of the Skia 3x3 matrix + camera hackery. 257 */ 258void RenderNode::applyViewPropertyTransforms(mat4& matrix, bool true3dTransform) { 259 if (properties().getLeft() != 0 || properties().getTop() != 0) { 260 matrix.translate(properties().getLeft(), properties().getTop()); 261 } 262 if (properties().getStaticMatrix()) { 263 mat4 stat(*properties().getStaticMatrix()); 264 matrix.multiply(stat); 265 } else if (properties().getAnimationMatrix()) { 266 mat4 anim(*properties().getAnimationMatrix()); 267 matrix.multiply(anim); 268 } 269 270 bool applyTranslationZ = true3dTransform && !MathUtils::isZero(properties().getZ()); 271 if (properties().hasTransformMatrix() || applyTranslationZ) { 272 if (properties().isTransformTranslateOnly()) { 273 matrix.translate(properties().getTranslationX(), properties().getTranslationY(), 274 true3dTransform ? properties().getZ() : 0.0f); 275 } else { 276 if (!true3dTransform) { 277 matrix.multiply(*properties().getTransformMatrix()); 278 } else { 279 mat4 true3dMat; 280 true3dMat.loadTranslate( 281 properties().getPivotX() + properties().getTranslationX(), 282 properties().getPivotY() + properties().getTranslationY(), 283 properties().getZ()); 284 true3dMat.rotate(properties().getRotationX(), 1, 0, 0); 285 true3dMat.rotate(properties().getRotationY(), 0, 1, 0); 286 true3dMat.rotate(properties().getRotation(), 0, 0, 1); 287 true3dMat.scale(properties().getScaleX(), properties().getScaleY(), 1); 288 true3dMat.translate(-properties().getPivotX(), -properties().getPivotY()); 289 290 matrix.multiply(true3dMat); 291 } 292 } 293 } 294} 295 296/** 297 * Organizes the DisplayList hierarchy to prepare for background projection reordering. 298 * 299 * This should be called before a call to defer() or drawDisplayList() 300 * 301 * Each DisplayList that serves as a 3d root builds its list of composited children, 302 * which are flagged to not draw in the standard draw loop. 303 */ 304void RenderNode::computeOrdering() { 305 ATRACE_CALL(); 306 mProjectedNodes.clear(); 307 308 // TODO: create temporary DDLOp and call computeOrderingImpl on top DisplayList so that 309 // transform properties are applied correctly to top level children 310 if (mDisplayListData == NULL) return; 311 for (unsigned int i = 0; i < mDisplayListData->children().size(); i++) { 312 DrawDisplayListOp* childOp = mDisplayListData->children()[i]; 313 childOp->mDisplayList->computeOrderingImpl(childOp, 314 properties().getOutline().getPath(), &mProjectedNodes, &mat4::identity()); 315 } 316} 317 318void RenderNode::computeOrderingImpl( 319 DrawDisplayListOp* opState, 320 const SkPath* outlineOfProjectionSurface, 321 Vector<DrawDisplayListOp*>* compositedChildrenOfProjectionSurface, 322 const mat4* transformFromProjectionSurface) { 323 mProjectedNodes.clear(); 324 if (mDisplayListData == NULL || mDisplayListData->isEmpty()) return; 325 326 // TODO: should avoid this calculation in most cases 327 // TODO: just calculate single matrix, down to all leaf composited elements 328 Matrix4 localTransformFromProjectionSurface(*transformFromProjectionSurface); 329 localTransformFromProjectionSurface.multiply(opState->mTransformFromParent); 330 331 if (properties().getProjectBackwards()) { 332 // composited projectee, flag for out of order draw, save matrix, and store in proj surface 333 opState->mSkipInOrderDraw = true; 334 opState->mTransformFromCompositingAncestor.load(localTransformFromProjectionSurface); 335 compositedChildrenOfProjectionSurface->add(opState); 336 } else { 337 // standard in order draw 338 opState->mSkipInOrderDraw = false; 339 } 340 341 if (mDisplayListData->children().size() > 0) { 342 const bool isProjectionReceiver = mDisplayListData->projectionReceiveIndex >= 0; 343 bool haveAppliedPropertiesToProjection = false; 344 for (unsigned int i = 0; i < mDisplayListData->children().size(); i++) { 345 DrawDisplayListOp* childOp = mDisplayListData->children()[i]; 346 RenderNode* child = childOp->mDisplayList; 347 348 const SkPath* projectionOutline = NULL; 349 Vector<DrawDisplayListOp*>* projectionChildren = NULL; 350 const mat4* projectionTransform = NULL; 351 if (isProjectionReceiver && !child->properties().getProjectBackwards()) { 352 // if receiving projections, collect projecting descendent 353 354 // Note that if a direct descendent is projecting backwards, we pass it's 355 // grandparent projection collection, since it shouldn't project onto it's 356 // parent, where it will already be drawing. 357 projectionOutline = properties().getOutline().getPath(); 358 projectionChildren = &mProjectedNodes; 359 projectionTransform = &mat4::identity(); 360 } else { 361 if (!haveAppliedPropertiesToProjection) { 362 applyViewPropertyTransforms(localTransformFromProjectionSurface); 363 haveAppliedPropertiesToProjection = true; 364 } 365 projectionOutline = outlineOfProjectionSurface; 366 projectionChildren = compositedChildrenOfProjectionSurface; 367 projectionTransform = &localTransformFromProjectionSurface; 368 } 369 child->computeOrderingImpl(childOp, 370 projectionOutline, projectionChildren, projectionTransform); 371 } 372 } 373} 374 375class DeferOperationHandler { 376public: 377 DeferOperationHandler(DeferStateStruct& deferStruct, int level) 378 : mDeferStruct(deferStruct), mLevel(level) {} 379 inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) { 380 operation->defer(mDeferStruct, saveCount, mLevel, clipToBounds); 381 } 382 inline LinearAllocator& allocator() { return *(mDeferStruct.mAllocator); } 383 inline void startMark(const char* name) {} // do nothing 384 inline void endMark() {} 385 inline int level() { return mLevel; } 386 inline int replayFlags() { return mDeferStruct.mReplayFlags; } 387 388private: 389 DeferStateStruct& mDeferStruct; 390 const int mLevel; 391}; 392 393void RenderNode::deferNodeTree(DeferStateStruct& deferStruct) { 394 DeferOperationHandler handler(deferStruct, 0); 395 if (MathUtils::isPositive(properties().getZ())) { 396 issueDrawShadowOperation(Matrix4::identity(), handler); 397 } 398 issueOperations<DeferOperationHandler>(deferStruct.mRenderer, handler); 399} 400 401void RenderNode::deferNodeInParent(DeferStateStruct& deferStruct, const int level) { 402 DeferOperationHandler handler(deferStruct, level); 403 issueOperations<DeferOperationHandler>(deferStruct.mRenderer, handler); 404} 405 406class ReplayOperationHandler { 407public: 408 ReplayOperationHandler(ReplayStateStruct& replayStruct, int level) 409 : mReplayStruct(replayStruct), mLevel(level) {} 410 inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) { 411#if DEBUG_DISPLAY_LIST_OPS_AS_EVENTS 412 mReplayStruct.mRenderer.eventMark(operation->name()); 413#endif 414 operation->replay(mReplayStruct, saveCount, mLevel, clipToBounds); 415 } 416 inline LinearAllocator& allocator() { return *(mReplayStruct.mAllocator); } 417 inline void startMark(const char* name) { 418 mReplayStruct.mRenderer.startMark(name); 419 } 420 inline void endMark() { 421 mReplayStruct.mRenderer.endMark(); 422 } 423 inline int level() { return mLevel; } 424 inline int replayFlags() { return mReplayStruct.mReplayFlags; } 425 426private: 427 ReplayStateStruct& mReplayStruct; 428 const int mLevel; 429}; 430 431void RenderNode::replayNodeTree(ReplayStateStruct& replayStruct) { 432 ReplayOperationHandler handler(replayStruct, 0); 433 if (MathUtils::isPositive(properties().getZ())) { 434 issueDrawShadowOperation(Matrix4::identity(), handler); 435 } 436 issueOperations<ReplayOperationHandler>(replayStruct.mRenderer, handler); 437} 438 439void RenderNode::replayNodeInParent(ReplayStateStruct& replayStruct, const int level) { 440 ReplayOperationHandler handler(replayStruct, level); 441 issueOperations<ReplayOperationHandler>(replayStruct.mRenderer, handler); 442} 443 444void RenderNode::buildZSortedChildList(Vector<ZDrawDisplayListOpPair>& zTranslatedNodes) { 445 if (mDisplayListData == NULL || mDisplayListData->children().size() == 0) return; 446 447 for (unsigned int i = 0; i < mDisplayListData->children().size(); i++) { 448 DrawDisplayListOp* childOp = mDisplayListData->children()[i]; 449 RenderNode* child = childOp->mDisplayList; 450 float childZ = child->properties().getZ(); 451 452 if (!MathUtils::isZero(childZ)) { 453 zTranslatedNodes.add(ZDrawDisplayListOpPair(childZ, childOp)); 454 childOp->mSkipInOrderDraw = true; 455 } else if (!child->properties().getProjectBackwards()) { 456 // regular, in order drawing DisplayList 457 childOp->mSkipInOrderDraw = false; 458 } 459 } 460 461 // Z sort 3d children (stable-ness makes z compare fall back to standard drawing order) 462 std::stable_sort(zTranslatedNodes.begin(), zTranslatedNodes.end()); 463} 464 465template <class T> 466void RenderNode::issueDrawShadowOperation(const Matrix4& transformFromParent, T& handler) { 467 if (properties().getAlpha() <= 0.0f) return; 468 469 mat4 shadowMatrixXY(transformFromParent); 470 applyViewPropertyTransforms(shadowMatrixXY); 471 472 // Z matrix needs actual 3d transformation, so mapped z values will be correct 473 mat4 shadowMatrixZ(transformFromParent); 474 applyViewPropertyTransforms(shadowMatrixZ, true); 475 476 const SkPath* outlinePath = properties().getOutline().getPath(); 477 const RevealClip& revealClip = properties().getRevealClip(); 478 const SkPath* revealClipPath = revealClip.hasConvexClip() 479 ? revealClip.getPath() : NULL; // only pass the reveal clip's path if it's convex 480 481 /** 482 * The drawing area of the caster is always the same as the its perimeter (which 483 * the shadow system uses) *except* in the inverse clip case. Inform the shadow 484 * system that the caster's drawing area (as opposed to its perimeter) has been 485 * clipped, so that it knows the caster can't be opaque. 486 */ 487 bool casterUnclipped = !revealClip.willClip() || revealClip.hasConvexClip(); 488 489 DisplayListOp* shadowOp = new (handler.allocator()) DrawShadowOp( 490 shadowMatrixXY, shadowMatrixZ, 491 properties().getAlpha(), casterUnclipped, 492 properties().getWidth(), properties().getHeight(), 493 outlinePath, revealClipPath); 494 handler(shadowOp, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 495} 496 497#define SHADOW_DELTA 0.1f 498 499template <class T> 500void RenderNode::issueOperationsOf3dChildren(const Vector<ZDrawDisplayListOpPair>& zTranslatedNodes, 501 ChildrenSelectMode mode, OpenGLRenderer& renderer, T& handler) { 502 const int size = zTranslatedNodes.size(); 503 if (size == 0 504 || (mode == kNegativeZChildren && zTranslatedNodes[0].key > 0.0f) 505 || (mode == kPositiveZChildren && zTranslatedNodes[size - 1].key < 0.0f)) { 506 // no 3d children to draw 507 return; 508 } 509 510 /** 511 * Draw shadows and (potential) casters mostly in order, but allow the shadows of casters 512 * with very similar Z heights to draw together. 513 * 514 * This way, if Views A & B have the same Z height and are both casting shadows, the shadows are 515 * underneath both, and neither's shadow is drawn on top of the other. 516 */ 517 const size_t nonNegativeIndex = findNonNegativeIndex(zTranslatedNodes); 518 size_t drawIndex, shadowIndex, endIndex; 519 if (mode == kNegativeZChildren) { 520 drawIndex = 0; 521 endIndex = nonNegativeIndex; 522 shadowIndex = endIndex; // draw no shadows 523 } else { 524 drawIndex = nonNegativeIndex; 525 endIndex = size; 526 shadowIndex = drawIndex; // potentially draw shadow for each pos Z child 527 } 528 529 DISPLAY_LIST_LOGD("%*s%d %s 3d children:", (handler.level() + 1) * 2, "", 530 endIndex - drawIndex, mode == kNegativeZChildren ? "negative" : "positive"); 531 532 float lastCasterZ = 0.0f; 533 while (shadowIndex < endIndex || drawIndex < endIndex) { 534 if (shadowIndex < endIndex) { 535 DrawDisplayListOp* casterOp = zTranslatedNodes[shadowIndex].value; 536 RenderNode* caster = casterOp->mDisplayList; 537 const float casterZ = zTranslatedNodes[shadowIndex].key; 538 // attempt to render the shadow if the caster about to be drawn is its caster, 539 // OR if its caster's Z value is similar to the previous potential caster 540 if (shadowIndex == drawIndex || casterZ - lastCasterZ < SHADOW_DELTA) { 541 caster->issueDrawShadowOperation(casterOp->mTransformFromParent, handler); 542 543 lastCasterZ = casterZ; // must do this even if current caster not casting a shadow 544 shadowIndex++; 545 continue; 546 } 547 } 548 549 // only the actual child DL draw needs to be in save/restore, 550 // since it modifies the renderer's matrix 551 int restoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 552 553 DrawDisplayListOp* childOp = zTranslatedNodes[drawIndex].value; 554 RenderNode* child = childOp->mDisplayList; 555 556 renderer.concatMatrix(childOp->mTransformFromParent); 557 childOp->mSkipInOrderDraw = false; // this is horrible, I'm so sorry everyone 558 handler(childOp, renderer.getSaveCount() - 1, properties().getClipToBounds()); 559 childOp->mSkipInOrderDraw = true; 560 561 renderer.restoreToCount(restoreTo); 562 drawIndex++; 563 } 564} 565 566template <class T> 567void RenderNode::issueOperationsOfProjectedChildren(OpenGLRenderer& renderer, T& handler) { 568 DISPLAY_LIST_LOGD("%*s%d projected children:", (handler.level() + 1) * 2, "", mProjectedNodes.size()); 569 const SkPath* projectionReceiverOutline = properties().getOutline().getPath(); 570 bool maskProjecteesWithPath = projectionReceiverOutline != NULL 571 && !projectionReceiverOutline->isRect(NULL); 572 int restoreTo = renderer.getSaveCount(); 573 574 // If the projection reciever has an outline, we mask each of the projected rendernodes to it 575 // Either with clipRect, or special saveLayer masking 576 LinearAllocator& alloc = handler.allocator(); 577 if (projectionReceiverOutline != NULL) { 578 const SkRect& outlineBounds = projectionReceiverOutline->getBounds(); 579 if (projectionReceiverOutline->isRect(NULL)) { 580 // mask to the rect outline simply with clipRect 581 handler(new (alloc) SaveOp(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag), 582 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 583 ClipRectOp* clipOp = new (alloc) ClipRectOp( 584 outlineBounds.left(), outlineBounds.top(), 585 outlineBounds.right(), outlineBounds.bottom(), SkRegion::kIntersect_Op); 586 handler(clipOp, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 587 } else { 588 // wrap the projected RenderNodes with a SaveLayer that will mask to the outline 589 SaveLayerOp* op = new (alloc) SaveLayerOp( 590 outlineBounds.left(), outlineBounds.top(), 591 outlineBounds.right(), outlineBounds.bottom(), 592 255, SkCanvas::kARGB_ClipLayer_SaveFlag); 593 op->setMask(projectionReceiverOutline); 594 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 595 596 /* TODO: add optimizations here to take advantage of placement/size of projected 597 * children (which may shrink saveLayer area significantly). This is dependent on 598 * passing actual drawing/dirtying bounds of projected content down to native. 599 */ 600 } 601 } 602 603 // draw projected nodes 604 for (size_t i = 0; i < mProjectedNodes.size(); i++) { 605 DrawDisplayListOp* childOp = mProjectedNodes[i]; 606 607 // matrix save, concat, and restore can be done safely without allocating operations 608 int restoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 609 renderer.concatMatrix(childOp->mTransformFromCompositingAncestor); 610 childOp->mSkipInOrderDraw = false; // this is horrible, I'm so sorry everyone 611 handler(childOp, renderer.getSaveCount() - 1, properties().getClipToBounds()); 612 childOp->mSkipInOrderDraw = true; 613 renderer.restoreToCount(restoreTo); 614 } 615 616 if (projectionReceiverOutline != NULL) { 617 handler(new (alloc) RestoreToCountOp(restoreTo), 618 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 619 } 620} 621 622/** 623 * This function serves both defer and replay modes, and will organize the displayList's component 624 * operations for a single frame: 625 * 626 * Every 'simple' state operation that affects just the matrix and alpha (or other factors of 627 * DeferredDisplayState) may be issued directly to the renderer, but complex operations (with custom 628 * defer logic) and operations in displayListOps are issued through the 'handler' which handles the 629 * defer vs replay logic, per operation 630 */ 631template <class T> 632void RenderNode::issueOperations(OpenGLRenderer& renderer, T& handler) { 633 const int level = handler.level(); 634 if (mDisplayListData->isEmpty() || properties().getAlpha() <= 0) { 635 DISPLAY_LIST_LOGD("%*sEmpty display list (%p, %s)", level * 2, "", this, getName()); 636 return; 637 } 638 639 handler.startMark(getName()); 640 641#if DEBUG_DISPLAY_LIST 642 const Rect& clipRect = renderer.getLocalClipBounds(); 643 DISPLAY_LIST_LOGD("%*sStart display list (%p, %s), localClipBounds: %.0f, %.0f, %.0f, %.0f", 644 level * 2, "", this, getName(), 645 clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); 646#endif 647 648 LinearAllocator& alloc = handler.allocator(); 649 int restoreTo = renderer.getSaveCount(); 650 handler(new (alloc) SaveOp(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag), 651 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 652 653 DISPLAY_LIST_LOGD("%*sSave %d %d", (level + 1) * 2, "", 654 SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag, restoreTo); 655 656 setViewProperties<T>(renderer, handler); 657 658 bool quickRejected = properties().getClipToBounds() 659 && renderer.quickRejectConservative(0, 0, properties().getWidth(), properties().getHeight()); 660 if (!quickRejected) { 661 Vector<ZDrawDisplayListOpPair> zTranslatedNodes; 662 buildZSortedChildList(zTranslatedNodes); 663 664 // for 3d root, draw children with negative z values 665 issueOperationsOf3dChildren(zTranslatedNodes, kNegativeZChildren, renderer, handler); 666 667 DisplayListLogBuffer& logBuffer = DisplayListLogBuffer::getInstance(); 668 const int saveCountOffset = renderer.getSaveCount() - 1; 669 const int projectionReceiveIndex = mDisplayListData->projectionReceiveIndex; 670 for (unsigned int i = 0; i < mDisplayListData->displayListOps.size(); i++) { 671 DisplayListOp *op = mDisplayListData->displayListOps[i]; 672 673#if DEBUG_DISPLAY_LIST 674 op->output(level + 1); 675#endif 676 logBuffer.writeCommand(level, op->name()); 677 handler(op, saveCountOffset, properties().getClipToBounds()); 678 679 if (CC_UNLIKELY(i == projectionReceiveIndex && mProjectedNodes.size() > 0)) { 680 issueOperationsOfProjectedChildren(renderer, handler); 681 } 682 } 683 684 // for 3d root, draw children with positive z values 685 issueOperationsOf3dChildren(zTranslatedNodes, kPositiveZChildren, renderer, handler); 686 } 687 688 DISPLAY_LIST_LOGD("%*sRestoreToCount %d", (level + 1) * 2, "", restoreTo); 689 handler(new (alloc) RestoreToCountOp(restoreTo), 690 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 691 renderer.setOverrideLayerAlpha(1.0f); 692 693 DISPLAY_LIST_LOGD("%*sDone (%p, %s)", level * 2, "", this, getName()); 694 handler.endMark(); 695} 696 697} /* namespace uirenderer */ 698} /* namespace android */ 699