RenderNode.cpp revision 139088228faa7f3c446af7387e017933998a5570
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 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 112class PushAnimatorsFunctor { 113public: 114 PushAnimatorsFunctor(RenderNode* target, TreeInfo& info) 115 : mTarget(target), mInfo(info) {} 116 117 bool operator() (const sp<BaseRenderNodeAnimator>& animator) { 118 animator->setupStartValueIfNecessary(mTarget, mInfo); 119 return animator->isFinished(); 120 } 121private: 122 RenderNode* mTarget; 123 TreeInfo& mInfo; 124}; 125 126void RenderNode::pushStagingChanges(TreeInfo& info) { 127 // Push the animators first so that setupStartValueIfNecessary() is called 128 // before properties() is trampled by stagingProperties(), as they are 129 // required by some animators. 130 if (mNeedsAnimatorsSync) { 131 mAnimators.resize(mStagingAnimators.size()); 132 std::vector< sp<BaseRenderNodeAnimator> >::iterator it; 133 PushAnimatorsFunctor functor(this, info); 134 // hint: this means copy_if_not() 135 it = std::remove_copy_if(mStagingAnimators.begin(), mStagingAnimators.end(), 136 mAnimators.begin(), functor); 137 mAnimators.resize(std::distance(mAnimators.begin(), it)); 138 } 139 if (mDirtyPropertyFields) { 140 mDirtyPropertyFields = 0; 141 mProperties = mStagingProperties; 142 } 143 if (mNeedsDisplayListDataSync) { 144 mNeedsDisplayListDataSync = false; 145 // Do a push pass on the old tree to handle freeing DisplayListData 146 // that are no longer used 147 TreeInfo oldTreeInfo; 148 prepareSubTree(oldTreeInfo, mDisplayListData); 149 // TODO: The damage for the old tree should be accounted for 150 delete mDisplayListData; 151 mDisplayListData = mStagingDisplayListData; 152 mStagingDisplayListData = 0; 153 } 154} 155 156class AnimateFunctor { 157public: 158 AnimateFunctor(RenderNode* target, TreeInfo& info) 159 : mTarget(target), mInfo(info) {} 160 161 bool operator() (const sp<BaseRenderNodeAnimator>& animator) { 162 return animator->animate(mTarget, mInfo); 163 } 164private: 165 RenderNode* mTarget; 166 TreeInfo& mInfo; 167}; 168 169void RenderNode::evaluateAnimations(TreeInfo& info) { 170 if (!mAnimators.size()) return; 171 172 AnimateFunctor functor(this, info); 173 std::vector< sp<BaseRenderNodeAnimator> >::iterator newEnd; 174 newEnd = std::remove_if(mAnimators.begin(), mAnimators.end(), functor); 175 mAnimators.erase(newEnd, mAnimators.end()); 176 mProperties.updateMatrix(); 177 info.out.hasAnimations |= mAnimators.size(); 178} 179 180void RenderNode::prepareSubTree(TreeInfo& info, DisplayListData* subtree) { 181 if (subtree) { 182 TextureCache& cache = Caches::getInstance().textureCache; 183 info.out.hasFunctors |= subtree->functorCount; 184 // TODO: Fix ownedBitmapResources to not require disabling prepareTextures 185 // and thus falling out of async drawing path. 186 if (subtree->ownedBitmapResources.size()) { 187 info.prepareTextures = false; 188 } 189 for (size_t i = 0; info.prepareTextures && i < subtree->bitmapResources.size(); i++) { 190 info.prepareTextures = cache.prefetchAndMarkInUse(subtree->bitmapResources[i]); 191 } 192 for (size_t i = 0; i < subtree->children().size(); i++) { 193 RenderNode* childNode = subtree->children()[i]->mDisplayList; 194 childNode->prepareTreeImpl(info); 195 } 196 } 197} 198 199/* 200 * For property operations, we pass a savecount of 0, since the operations aren't part of the 201 * displaylist, and thus don't have to compensate for the record-time/playback-time discrepancy in 202 * base saveCount (i.e., how RestoreToCount uses saveCount + properties().getCount()) 203 */ 204#define PROPERTY_SAVECOUNT 0 205 206template <class T> 207void RenderNode::setViewProperties(OpenGLRenderer& renderer, T& handler) { 208#if DEBUG_DISPLAY_LIST 209 properties().debugOutputProperties(handler.level() + 1); 210#endif 211 if (properties().getLeft() != 0 || properties().getTop() != 0) { 212 renderer.translate(properties().getLeft(), properties().getTop()); 213 } 214 if (properties().getStaticMatrix()) { 215 renderer.concatMatrix(*properties().getStaticMatrix()); 216 } else if (properties().getAnimationMatrix()) { 217 renderer.concatMatrix(*properties().getAnimationMatrix()); 218 } 219 if (properties().hasTransformMatrix()) { 220 if (properties().isTransformTranslateOnly()) { 221 renderer.translate(properties().getTranslationX(), properties().getTranslationY()); 222 } else { 223 renderer.concatMatrix(*properties().getTransformMatrix()); 224 } 225 } 226 bool clipToBoundsNeeded = properties().getCaching() ? false : properties().getClipToBounds(); 227 if (properties().getAlpha() < 1) { 228 if (properties().getCaching()) { 229 renderer.setOverrideLayerAlpha(properties().getAlpha()); 230 } else if (!properties().getHasOverlappingRendering()) { 231 renderer.scaleAlpha(properties().getAlpha()); 232 } else { 233 // TODO: should be able to store the size of a DL at record time and not 234 // have to pass it into this call. In fact, this information might be in the 235 // location/size info that we store with the new native transform data. 236 int saveFlags = SkCanvas::kHasAlphaLayer_SaveFlag; 237 if (clipToBoundsNeeded) { 238 saveFlags |= SkCanvas::kClipToLayer_SaveFlag; 239 clipToBoundsNeeded = false; // clipping done by saveLayer 240 } 241 242 SaveLayerOp* op = new (handler.allocator()) SaveLayerOp( 243 0, 0, properties().getWidth(), properties().getHeight(), 244 properties().getAlpha() * 255, saveFlags); 245 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 246 } 247 } 248 if (clipToBoundsNeeded) { 249 ClipRectOp* op = new (handler.allocator()) ClipRectOp( 250 0, 0, properties().getWidth(), properties().getHeight(), SkRegion::kIntersect_Op); 251 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 252 } 253 254 if (CC_UNLIKELY(properties().hasClippingPath())) { 255 ClipPathOp* op = new (handler.allocator()) ClipPathOp( 256 properties().getClippingPath(), properties().getClippingPathOp()); 257 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 258 } 259} 260 261/** 262 * Apply property-based transformations to input matrix 263 * 264 * If true3dTransform is set to true, the transform applied to the input matrix will use true 4x4 265 * matrix computation instead of the Skia 3x3 matrix + camera hackery. 266 */ 267void RenderNode::applyViewPropertyTransforms(mat4& matrix, bool true3dTransform) { 268 if (properties().getLeft() != 0 || properties().getTop() != 0) { 269 matrix.translate(properties().getLeft(), properties().getTop()); 270 } 271 if (properties().getStaticMatrix()) { 272 mat4 stat(*properties().getStaticMatrix()); 273 matrix.multiply(stat); 274 } else if (properties().getAnimationMatrix()) { 275 mat4 anim(*properties().getAnimationMatrix()); 276 matrix.multiply(anim); 277 } 278 279 bool applyTranslationZ = true3dTransform && !MathUtils::isZero(properties().getZ()); 280 if (properties().hasTransformMatrix() || applyTranslationZ) { 281 if (properties().isTransformTranslateOnly()) { 282 matrix.translate(properties().getTranslationX(), properties().getTranslationY(), 283 true3dTransform ? properties().getZ() : 0.0f); 284 } else { 285 if (!true3dTransform) { 286 matrix.multiply(*properties().getTransformMatrix()); 287 } else { 288 mat4 true3dMat; 289 true3dMat.loadTranslate( 290 properties().getPivotX() + properties().getTranslationX(), 291 properties().getPivotY() + properties().getTranslationY(), 292 properties().getZ()); 293 true3dMat.rotate(properties().getRotationX(), 1, 0, 0); 294 true3dMat.rotate(properties().getRotationY(), 0, 1, 0); 295 true3dMat.rotate(properties().getRotation(), 0, 0, 1); 296 true3dMat.scale(properties().getScaleX(), properties().getScaleY(), 1); 297 true3dMat.translate(-properties().getPivotX(), -properties().getPivotY()); 298 299 matrix.multiply(true3dMat); 300 } 301 } 302 } 303} 304 305/** 306 * Organizes the DisplayList hierarchy to prepare for background projection reordering. 307 * 308 * This should be called before a call to defer() or drawDisplayList() 309 * 310 * Each DisplayList that serves as a 3d root builds its list of composited children, 311 * which are flagged to not draw in the standard draw loop. 312 */ 313void RenderNode::computeOrdering() { 314 ATRACE_CALL(); 315 mProjectedNodes.clear(); 316 317 // TODO: create temporary DDLOp and call computeOrderingImpl on top DisplayList so that 318 // transform properties are applied correctly to top level children 319 if (mDisplayListData == NULL) return; 320 for (unsigned int i = 0; i < mDisplayListData->children().size(); i++) { 321 DrawDisplayListOp* childOp = mDisplayListData->children()[i]; 322 childOp->mDisplayList->computeOrderingImpl(childOp, 323 properties().getOutline().getPath(), &mProjectedNodes, &mat4::identity()); 324 } 325} 326 327void RenderNode::computeOrderingImpl( 328 DrawDisplayListOp* opState, 329 const SkPath* outlineOfProjectionSurface, 330 Vector<DrawDisplayListOp*>* compositedChildrenOfProjectionSurface, 331 const mat4* transformFromProjectionSurface) { 332 mProjectedNodes.clear(); 333 if (mDisplayListData == NULL || mDisplayListData->isEmpty()) return; 334 335 // TODO: should avoid this calculation in most cases 336 // TODO: just calculate single matrix, down to all leaf composited elements 337 Matrix4 localTransformFromProjectionSurface(*transformFromProjectionSurface); 338 localTransformFromProjectionSurface.multiply(opState->mTransformFromParent); 339 340 if (properties().getProjectBackwards()) { 341 // composited projectee, flag for out of order draw, save matrix, and store in proj surface 342 opState->mSkipInOrderDraw = true; 343 opState->mTransformFromCompositingAncestor.load(localTransformFromProjectionSurface); 344 compositedChildrenOfProjectionSurface->add(opState); 345 } else { 346 // standard in order draw 347 opState->mSkipInOrderDraw = false; 348 } 349 350 if (mDisplayListData->children().size() > 0) { 351 const bool isProjectionReceiver = mDisplayListData->projectionReceiveIndex >= 0; 352 bool haveAppliedPropertiesToProjection = false; 353 for (unsigned int i = 0; i < mDisplayListData->children().size(); i++) { 354 DrawDisplayListOp* childOp = mDisplayListData->children()[i]; 355 RenderNode* child = childOp->mDisplayList; 356 357 const SkPath* projectionOutline = NULL; 358 Vector<DrawDisplayListOp*>* projectionChildren = NULL; 359 const mat4* projectionTransform = NULL; 360 if (isProjectionReceiver && !child->properties().getProjectBackwards()) { 361 // if receiving projections, collect projecting descendent 362 363 // Note that if a direct descendent is projecting backwards, we pass it's 364 // grandparent projection collection, since it shouldn't project onto it's 365 // parent, where it will already be drawing. 366 projectionOutline = properties().getOutline().getPath(); 367 projectionChildren = &mProjectedNodes; 368 projectionTransform = &mat4::identity(); 369 } else { 370 if (!haveAppliedPropertiesToProjection) { 371 applyViewPropertyTransforms(localTransformFromProjectionSurface); 372 haveAppliedPropertiesToProjection = true; 373 } 374 projectionOutline = outlineOfProjectionSurface; 375 projectionChildren = compositedChildrenOfProjectionSurface; 376 projectionTransform = &localTransformFromProjectionSurface; 377 } 378 child->computeOrderingImpl(childOp, 379 projectionOutline, projectionChildren, projectionTransform); 380 } 381 } 382} 383 384class DeferOperationHandler { 385public: 386 DeferOperationHandler(DeferStateStruct& deferStruct, int level) 387 : mDeferStruct(deferStruct), mLevel(level) {} 388 inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) { 389 operation->defer(mDeferStruct, saveCount, mLevel, clipToBounds); 390 } 391 inline LinearAllocator& allocator() { return *(mDeferStruct.mAllocator); } 392 inline void startMark(const char* name) {} // do nothing 393 inline void endMark() {} 394 inline int level() { return mLevel; } 395 inline int replayFlags() { return mDeferStruct.mReplayFlags; } 396 397private: 398 DeferStateStruct& mDeferStruct; 399 const int mLevel; 400}; 401 402void RenderNode::deferNodeTree(DeferStateStruct& deferStruct) { 403 DeferOperationHandler handler(deferStruct, 0); 404 if (MathUtils::isPositive(properties().getZ())) { 405 issueDrawShadowOperation(Matrix4::identity(), handler); 406 } 407 issueOperations<DeferOperationHandler>(deferStruct.mRenderer, handler); 408} 409 410void RenderNode::deferNodeInParent(DeferStateStruct& deferStruct, const int level) { 411 DeferOperationHandler handler(deferStruct, level); 412 issueOperations<DeferOperationHandler>(deferStruct.mRenderer, handler); 413} 414 415class ReplayOperationHandler { 416public: 417 ReplayOperationHandler(ReplayStateStruct& replayStruct, int level) 418 : mReplayStruct(replayStruct), mLevel(level) {} 419 inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) { 420#if DEBUG_DISPLAY_LIST_OPS_AS_EVENTS 421 mReplayStruct.mRenderer.eventMark(operation->name()); 422#endif 423 operation->replay(mReplayStruct, saveCount, mLevel, clipToBounds); 424 } 425 inline LinearAllocator& allocator() { return *(mReplayStruct.mAllocator); } 426 inline void startMark(const char* name) { 427 mReplayStruct.mRenderer.startMark(name); 428 } 429 inline void endMark() { 430 mReplayStruct.mRenderer.endMark(); 431 } 432 inline int level() { return mLevel; } 433 inline int replayFlags() { return mReplayStruct.mReplayFlags; } 434 435private: 436 ReplayStateStruct& mReplayStruct; 437 const int mLevel; 438}; 439 440void RenderNode::replayNodeTree(ReplayStateStruct& replayStruct) { 441 ReplayOperationHandler handler(replayStruct, 0); 442 if (MathUtils::isPositive(properties().getZ())) { 443 issueDrawShadowOperation(Matrix4::identity(), handler); 444 } 445 issueOperations<ReplayOperationHandler>(replayStruct.mRenderer, handler); 446} 447 448void RenderNode::replayNodeInParent(ReplayStateStruct& replayStruct, const int level) { 449 ReplayOperationHandler handler(replayStruct, level); 450 issueOperations<ReplayOperationHandler>(replayStruct.mRenderer, handler); 451} 452 453void RenderNode::buildZSortedChildList(Vector<ZDrawDisplayListOpPair>& zTranslatedNodes) { 454 if (mDisplayListData == NULL || mDisplayListData->children().size() == 0) return; 455 456 for (unsigned int i = 0; i < mDisplayListData->children().size(); i++) { 457 DrawDisplayListOp* childOp = mDisplayListData->children()[i]; 458 RenderNode* child = childOp->mDisplayList; 459 float childZ = child->properties().getZ(); 460 461 if (!MathUtils::isZero(childZ)) { 462 zTranslatedNodes.add(ZDrawDisplayListOpPair(childZ, childOp)); 463 childOp->mSkipInOrderDraw = true; 464 } else if (!child->properties().getProjectBackwards()) { 465 // regular, in order drawing DisplayList 466 childOp->mSkipInOrderDraw = false; 467 } 468 } 469 470 // Z sort 3d children (stable-ness makes z compare fall back to standard drawing order) 471 std::stable_sort(zTranslatedNodes.begin(), zTranslatedNodes.end()); 472} 473 474template <class T> 475void RenderNode::issueDrawShadowOperation(const Matrix4& transformFromParent, T& handler) { 476 if (properties().getAlpha() <= 0.0f || properties().getOutline().isEmpty()) return; 477 478 mat4 shadowMatrixXY(transformFromParent); 479 applyViewPropertyTransforms(shadowMatrixXY); 480 481 // Z matrix needs actual 3d transformation, so mapped z values will be correct 482 mat4 shadowMatrixZ(transformFromParent); 483 applyViewPropertyTransforms(shadowMatrixZ, true); 484 485 const SkPath* outlinePath = properties().getOutline().getPath(); 486 const RevealClip& revealClip = properties().getRevealClip(); 487 const SkPath* revealClipPath = revealClip.hasConvexClip() 488 ? revealClip.getPath() : NULL; // only pass the reveal clip's path if it's convex 489 490 if (revealClipPath && revealClipPath->isEmpty()) return; 491 492 /** 493 * The drawing area of the caster is always the same as the its perimeter (which 494 * the shadow system uses) *except* in the inverse clip case. Inform the shadow 495 * system that the caster's drawing area (as opposed to its perimeter) has been 496 * clipped, so that it knows the caster can't be opaque. 497 */ 498 bool casterUnclipped = !revealClip.willClip() || revealClip.hasConvexClip(); 499 500 DisplayListOp* shadowOp = new (handler.allocator()) DrawShadowOp( 501 shadowMatrixXY, shadowMatrixZ, 502 properties().getAlpha(), casterUnclipped, 503 outlinePath, revealClipPath); 504 handler(shadowOp, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 505} 506 507#define SHADOW_DELTA 0.1f 508 509template <class T> 510void RenderNode::issueOperationsOf3dChildren(const Vector<ZDrawDisplayListOpPair>& zTranslatedNodes, 511 ChildrenSelectMode mode, OpenGLRenderer& renderer, T& handler) { 512 const int size = zTranslatedNodes.size(); 513 if (size == 0 514 || (mode == kNegativeZChildren && zTranslatedNodes[0].key > 0.0f) 515 || (mode == kPositiveZChildren && zTranslatedNodes[size - 1].key < 0.0f)) { 516 // no 3d children to draw 517 return; 518 } 519 520 /** 521 * Draw shadows and (potential) casters mostly in order, but allow the shadows of casters 522 * with very similar Z heights to draw together. 523 * 524 * This way, if Views A & B have the same Z height and are both casting shadows, the shadows are 525 * underneath both, and neither's shadow is drawn on top of the other. 526 */ 527 const size_t nonNegativeIndex = findNonNegativeIndex(zTranslatedNodes); 528 size_t drawIndex, shadowIndex, endIndex; 529 if (mode == kNegativeZChildren) { 530 drawIndex = 0; 531 endIndex = nonNegativeIndex; 532 shadowIndex = endIndex; // draw no shadows 533 } else { 534 drawIndex = nonNegativeIndex; 535 endIndex = size; 536 shadowIndex = drawIndex; // potentially draw shadow for each pos Z child 537 } 538 539 DISPLAY_LIST_LOGD("%*s%d %s 3d children:", (handler.level() + 1) * 2, "", 540 endIndex - drawIndex, mode == kNegativeZChildren ? "negative" : "positive"); 541 542 float lastCasterZ = 0.0f; 543 while (shadowIndex < endIndex || drawIndex < endIndex) { 544 if (shadowIndex < endIndex) { 545 DrawDisplayListOp* casterOp = zTranslatedNodes[shadowIndex].value; 546 RenderNode* caster = casterOp->mDisplayList; 547 const float casterZ = zTranslatedNodes[shadowIndex].key; 548 // attempt to render the shadow if the caster about to be drawn is its caster, 549 // OR if its caster's Z value is similar to the previous potential caster 550 if (shadowIndex == drawIndex || casterZ - lastCasterZ < SHADOW_DELTA) { 551 caster->issueDrawShadowOperation(casterOp->mTransformFromParent, handler); 552 553 lastCasterZ = casterZ; // must do this even if current caster not casting a shadow 554 shadowIndex++; 555 continue; 556 } 557 } 558 559 // only the actual child DL draw needs to be in save/restore, 560 // since it modifies the renderer's matrix 561 int restoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 562 563 DrawDisplayListOp* childOp = zTranslatedNodes[drawIndex].value; 564 RenderNode* child = childOp->mDisplayList; 565 566 renderer.concatMatrix(childOp->mTransformFromParent); 567 childOp->mSkipInOrderDraw = false; // this is horrible, I'm so sorry everyone 568 handler(childOp, renderer.getSaveCount() - 1, properties().getClipToBounds()); 569 childOp->mSkipInOrderDraw = true; 570 571 renderer.restoreToCount(restoreTo); 572 drawIndex++; 573 } 574} 575 576template <class T> 577void RenderNode::issueOperationsOfProjectedChildren(OpenGLRenderer& renderer, T& handler) { 578 DISPLAY_LIST_LOGD("%*s%d projected children:", (handler.level() + 1) * 2, "", mProjectedNodes.size()); 579 const SkPath* projectionReceiverOutline = properties().getOutline().getPath(); 580 bool maskProjecteesWithPath = projectionReceiverOutline != NULL 581 && !projectionReceiverOutline->isRect(NULL); 582 int restoreTo = renderer.getSaveCount(); 583 584 // If the projection reciever has an outline, we mask each of the projected rendernodes to it 585 // Either with clipRect, or special saveLayer masking 586 LinearAllocator& alloc = handler.allocator(); 587 if (projectionReceiverOutline != NULL) { 588 const SkRect& outlineBounds = projectionReceiverOutline->getBounds(); 589 if (projectionReceiverOutline->isRect(NULL)) { 590 // mask to the rect outline simply with clipRect 591 handler(new (alloc) SaveOp(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag), 592 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 593 ClipRectOp* clipOp = new (alloc) ClipRectOp( 594 outlineBounds.left(), outlineBounds.top(), 595 outlineBounds.right(), outlineBounds.bottom(), SkRegion::kIntersect_Op); 596 handler(clipOp, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 597 } else { 598 // wrap the projected RenderNodes with a SaveLayer that will mask to the outline 599 SaveLayerOp* op = new (alloc) SaveLayerOp( 600 outlineBounds.left(), outlineBounds.top(), 601 outlineBounds.right(), outlineBounds.bottom(), 602 255, SkCanvas::kARGB_ClipLayer_SaveFlag); 603 op->setMask(projectionReceiverOutline); 604 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 605 606 /* TODO: add optimizations here to take advantage of placement/size of projected 607 * children (which may shrink saveLayer area significantly). This is dependent on 608 * passing actual drawing/dirtying bounds of projected content down to native. 609 */ 610 } 611 } 612 613 // draw projected nodes 614 for (size_t i = 0; i < mProjectedNodes.size(); i++) { 615 DrawDisplayListOp* childOp = mProjectedNodes[i]; 616 617 // matrix save, concat, and restore can be done safely without allocating operations 618 int restoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 619 renderer.concatMatrix(childOp->mTransformFromCompositingAncestor); 620 childOp->mSkipInOrderDraw = false; // this is horrible, I'm so sorry everyone 621 handler(childOp, renderer.getSaveCount() - 1, properties().getClipToBounds()); 622 childOp->mSkipInOrderDraw = true; 623 renderer.restoreToCount(restoreTo); 624 } 625 626 if (projectionReceiverOutline != NULL) { 627 handler(new (alloc) RestoreToCountOp(restoreTo), 628 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 629 } 630} 631 632/** 633 * This function serves both defer and replay modes, and will organize the displayList's component 634 * operations for a single frame: 635 * 636 * Every 'simple' state operation that affects just the matrix and alpha (or other factors of 637 * DeferredDisplayState) may be issued directly to the renderer, but complex operations (with custom 638 * defer logic) and operations in displayListOps are issued through the 'handler' which handles the 639 * defer vs replay logic, per operation 640 */ 641template <class T> 642void RenderNode::issueOperations(OpenGLRenderer& renderer, T& handler) { 643 const int level = handler.level(); 644 if (mDisplayListData->isEmpty() || properties().getAlpha() <= 0) { 645 DISPLAY_LIST_LOGD("%*sEmpty display list (%p, %s)", level * 2, "", this, getName()); 646 return; 647 } 648 649 handler.startMark(getName()); 650 651#if DEBUG_DISPLAY_LIST 652 const Rect& clipRect = renderer.getLocalClipBounds(); 653 DISPLAY_LIST_LOGD("%*sStart display list (%p, %s), localClipBounds: %.0f, %.0f, %.0f, %.0f", 654 level * 2, "", this, getName(), 655 clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); 656#endif 657 658 LinearAllocator& alloc = handler.allocator(); 659 int restoreTo = renderer.getSaveCount(); 660 handler(new (alloc) SaveOp(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag), 661 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 662 663 DISPLAY_LIST_LOGD("%*sSave %d %d", (level + 1) * 2, "", 664 SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag, restoreTo); 665 666 setViewProperties<T>(renderer, handler); 667 668 bool quickRejected = properties().getClipToBounds() 669 && renderer.quickRejectConservative(0, 0, properties().getWidth(), properties().getHeight()); 670 if (!quickRejected) { 671 if (mProperties.getOutline().willClip()) { 672 renderer.setClippingOutline(alloc, &(mProperties.getOutline())); 673 } 674 675 Vector<ZDrawDisplayListOpPair> zTranslatedNodes; 676 buildZSortedChildList(zTranslatedNodes); 677 678 // for 3d root, draw children with negative z values 679 issueOperationsOf3dChildren(zTranslatedNodes, kNegativeZChildren, renderer, handler); 680 681 DisplayListLogBuffer& logBuffer = DisplayListLogBuffer::getInstance(); 682 const int saveCountOffset = renderer.getSaveCount() - 1; 683 const int projectionReceiveIndex = mDisplayListData->projectionReceiveIndex; 684 for (unsigned int i = 0; i < mDisplayListData->displayListOps.size(); i++) { 685 DisplayListOp *op = mDisplayListData->displayListOps[i]; 686 687#if DEBUG_DISPLAY_LIST 688 op->output(level + 1); 689#endif 690 logBuffer.writeCommand(level, op->name()); 691 handler(op, saveCountOffset, properties().getClipToBounds()); 692 693 if (CC_UNLIKELY(i == projectionReceiveIndex && mProjectedNodes.size() > 0)) { 694 issueOperationsOfProjectedChildren(renderer, handler); 695 } 696 } 697 698 // for 3d root, draw children with positive z values 699 issueOperationsOf3dChildren(zTranslatedNodes, kPositiveZChildren, renderer, handler); 700 } 701 702 DISPLAY_LIST_LOGD("%*sRestoreToCount %d", (level + 1) * 2, "", restoreTo); 703 handler(new (alloc) RestoreToCountOp(restoreTo), 704 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 705 renderer.setOverrideLayerAlpha(1.0f); 706 707 DISPLAY_LIST_LOGD("%*sDone (%p, %s)", level * 2, "", this, getName()); 708 handler.endMark(); 709} 710 711} /* namespace uirenderer */ 712} /* namespace android */ 713