RenderNode.cpp revision 2dc236b2bae13b9a0ed9b3f7320502aecd7983b3
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#define LOG_TAG "OpenGLRenderer" 19 20#include "RenderNode.h" 21 22#include <algorithm> 23#include <string> 24 25#include <SkCanvas.h> 26#include <algorithm> 27 28#include <utils/Trace.h> 29 30#include "DamageAccumulator.h" 31#include "Debug.h" 32#include "DisplayListOp.h" 33#include "DisplayListLogBuffer.h" 34#include "LayerRenderer.h" 35#include "OpenGLRenderer.h" 36#include "TreeInfo.h" 37#include "utils/MathUtils.h" 38#include "renderthread/CanvasContext.h" 39 40namespace android { 41namespace uirenderer { 42 43void RenderNode::outputLogBuffer(int fd) { 44 DisplayListLogBuffer& logBuffer = DisplayListLogBuffer::getInstance(); 45 if (logBuffer.isEmpty()) { 46 return; 47 } 48 49 FILE *file = fdopen(fd, "a"); 50 51 fprintf(file, "\nRecent DisplayList operations\n"); 52 logBuffer.outputCommands(file); 53 54 if (Caches::hasInstance()) { 55 String8 cachesLog; 56 Caches::getInstance().dumpMemoryUsage(cachesLog); 57 fprintf(file, "\nCaches:\n%s\n", cachesLog.string()); 58 } else { 59 fprintf(file, "\nNo caches instance.\n"); 60 } 61 62 fflush(file); 63} 64 65void RenderNode::debugDumpLayers(const char* prefix) { 66 if (mLayer) { 67 ALOGD("%sNode %p (%s) has layer %p (fbo = %u, wasBuildLayered = %s)", 68 prefix, this, getName(), mLayer, mLayer->getFbo(), 69 mLayer->wasBuildLayered ? "true" : "false"); 70 } 71 if (mDisplayListData) { 72 for (size_t i = 0; i < mDisplayListData->children().size(); i++) { 73 mDisplayListData->children()[i]->mRenderNode->debugDumpLayers(prefix); 74 } 75 } 76} 77 78RenderNode::RenderNode() 79 : mDirtyPropertyFields(0) 80 , mNeedsDisplayListDataSync(false) 81 , mDisplayListData(0) 82 , mStagingDisplayListData(0) 83 , mAnimatorManager(*this) 84 , mLayer(0) 85 , mParentCount(0) { 86} 87 88RenderNode::~RenderNode() { 89 deleteDisplayListData(); 90 delete mStagingDisplayListData; 91 LayerRenderer::destroyLayerDeferred(mLayer); 92} 93 94void RenderNode::setStagingDisplayList(DisplayListData* data) { 95 mNeedsDisplayListDataSync = true; 96 delete mStagingDisplayListData; 97 mStagingDisplayListData = data; 98 if (mStagingDisplayListData) { 99 Caches::getInstance().registerFunctors(mStagingDisplayListData->functors.size()); 100 } 101} 102 103/** 104 * This function is a simplified version of replay(), where we simply retrieve and log the 105 * display list. This function should remain in sync with the replay() function. 106 */ 107void RenderNode::output(uint32_t level) { 108 ALOGD("%*sStart display list (%p, %s, render=%d)", (level - 1) * 2, "", this, 109 getName(), isRenderable()); 110 ALOGD("%*s%s %d", level * 2, "", "Save", 111 SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 112 113 properties().debugOutputProperties(level); 114 int flags = DisplayListOp::kOpLogFlag_Recurse; 115 if (mDisplayListData) { 116 // TODO: consider printing the chunk boundaries here 117 for (unsigned int i = 0; i < mDisplayListData->displayListOps.size(); i++) { 118 mDisplayListData->displayListOps[i]->output(level, flags); 119 } 120 } 121 122 ALOGD("%*sDone (%p, %s)", (level - 1) * 2, "", this, getName()); 123} 124 125int RenderNode::getDebugSize() { 126 int size = sizeof(RenderNode); 127 if (mStagingDisplayListData) { 128 size += mStagingDisplayListData->getUsedSize(); 129 } 130 if (mDisplayListData && mDisplayListData != mStagingDisplayListData) { 131 size += mDisplayListData->getUsedSize(); 132 } 133 return size; 134} 135 136void RenderNode::prepareTree(TreeInfo& info) { 137 ATRACE_CALL(); 138 LOG_ALWAYS_FATAL_IF(!info.damageAccumulator, "DamageAccumulator missing"); 139 140 prepareTreeImpl(info); 141} 142 143void RenderNode::addAnimator(const sp<BaseRenderNodeAnimator>& animator) { 144 mAnimatorManager.addAnimator(animator); 145} 146 147void RenderNode::damageSelf(TreeInfo& info) { 148 if (isRenderable()) { 149 if (properties().getClipDamageToBounds()) { 150 info.damageAccumulator->dirty(0, 0, properties().getWidth(), properties().getHeight()); 151 } else { 152 // Hope this is big enough? 153 // TODO: Get this from the display list ops or something 154 info.damageAccumulator->dirty(INT_MIN, INT_MIN, INT_MAX, INT_MAX); 155 } 156 } 157} 158 159void RenderNode::prepareLayer(TreeInfo& info, uint32_t dirtyMask) { 160 LayerType layerType = properties().layerProperties().type(); 161 if (CC_UNLIKELY(layerType == kLayerTypeRenderLayer)) { 162 // Damage applied so far needs to affect our parent, but does not require 163 // the layer to be updated. So we pop/push here to clear out the current 164 // damage and get a clean state for display list or children updates to 165 // affect, which will require the layer to be updated 166 info.damageAccumulator->popTransform(); 167 info.damageAccumulator->pushTransform(this); 168 if (dirtyMask & DISPLAY_LIST) { 169 damageSelf(info); 170 } 171 } 172} 173 174void RenderNode::pushLayerUpdate(TreeInfo& info) { 175 LayerType layerType = properties().layerProperties().type(); 176 // If we are not a layer OR we cannot be rendered (eg, view was detached) 177 // we need to destroy any Layers we may have had previously 178 if (CC_LIKELY(layerType != kLayerTypeRenderLayer) || CC_UNLIKELY(!isRenderable())) { 179 if (CC_UNLIKELY(mLayer)) { 180 LayerRenderer::destroyLayer(mLayer); 181 mLayer = NULL; 182 } 183 return; 184 } 185 186 bool transformUpdateNeeded = false; 187 if (!mLayer) { 188 mLayer = LayerRenderer::createRenderLayer(info.renderState, getWidth(), getHeight()); 189 applyLayerPropertiesToLayer(info); 190 damageSelf(info); 191 transformUpdateNeeded = true; 192 } else if (mLayer->layer.getWidth() != getWidth() || mLayer->layer.getHeight() != getHeight()) { 193 if (!LayerRenderer::resizeLayer(mLayer, getWidth(), getHeight())) { 194 LayerRenderer::destroyLayer(mLayer); 195 mLayer = 0; 196 } 197 damageSelf(info); 198 transformUpdateNeeded = true; 199 } 200 201 SkRect dirty; 202 info.damageAccumulator->peekAtDirty(&dirty); 203 204 if (!mLayer) { 205 if (info.errorHandler) { 206 std::string msg = "Unable to create layer for "; 207 msg += getName(); 208 info.errorHandler->onError(msg); 209 } 210 return; 211 } 212 213 if (transformUpdateNeeded) { 214 // update the transform in window of the layer to reset its origin wrt light source position 215 Matrix4 windowTransform; 216 info.damageAccumulator->computeCurrentTransform(&windowTransform); 217 mLayer->setWindowTransform(windowTransform); 218 } 219 220 if (dirty.intersect(0, 0, getWidth(), getHeight())) { 221 dirty.roundOut(); 222 mLayer->updateDeferred(this, dirty.fLeft, dirty.fTop, dirty.fRight, dirty.fBottom); 223 } 224 // This is not inside the above if because we may have called 225 // updateDeferred on a previous prepare pass that didn't have a renderer 226 if (info.renderer && mLayer->deferredUpdateScheduled) { 227 info.renderer->pushLayerUpdate(mLayer); 228 } 229 230 if (CC_UNLIKELY(info.canvasContext)) { 231 // If canvasContext is not null that means there are prefetched layers 232 // that need to be accounted for. That might be us, so tell CanvasContext 233 // that this layer is in the tree and should not be destroyed. 234 info.canvasContext->markLayerInUse(this); 235 } 236} 237 238void RenderNode::prepareTreeImpl(TreeInfo& info) { 239 info.damageAccumulator->pushTransform(this); 240 241 if (info.mode == TreeInfo::MODE_FULL) { 242 pushStagingPropertiesChanges(info); 243 } 244 uint32_t animatorDirtyMask = 0; 245 if (CC_LIKELY(info.runAnimations)) { 246 animatorDirtyMask = mAnimatorManager.animate(info); 247 } 248 prepareLayer(info, animatorDirtyMask); 249 if (info.mode == TreeInfo::MODE_FULL) { 250 pushStagingDisplayListChanges(info); 251 } 252 prepareSubTree(info, mDisplayListData); 253 pushLayerUpdate(info); 254 255 info.damageAccumulator->popTransform(); 256} 257 258void RenderNode::pushStagingPropertiesChanges(TreeInfo& info) { 259 // Push the animators first so that setupStartValueIfNecessary() is called 260 // before properties() is trampled by stagingProperties(), as they are 261 // required by some animators. 262 if (CC_LIKELY(info.runAnimations)) { 263 mAnimatorManager.pushStaging(); 264 } 265 if (mDirtyPropertyFields) { 266 mDirtyPropertyFields = 0; 267 damageSelf(info); 268 info.damageAccumulator->popTransform(); 269 mProperties = mStagingProperties; 270 applyLayerPropertiesToLayer(info); 271 // We could try to be clever and only re-damage if the matrix changed. 272 // However, we don't need to worry about that. The cost of over-damaging 273 // here is only going to be a single additional map rect of this node 274 // plus a rect join(). The parent's transform (and up) will only be 275 // performed once. 276 info.damageAccumulator->pushTransform(this); 277 damageSelf(info); 278 } 279} 280 281void RenderNode::applyLayerPropertiesToLayer(TreeInfo& info) { 282 if (CC_LIKELY(!mLayer)) return; 283 284 const LayerProperties& props = properties().layerProperties(); 285 mLayer->setAlpha(props.alpha(), props.xferMode()); 286 mLayer->setColorFilter(props.colorFilter()); 287 mLayer->setBlend(props.needsBlending()); 288} 289 290void RenderNode::pushStagingDisplayListChanges(TreeInfo& info) { 291 if (mNeedsDisplayListDataSync) { 292 mNeedsDisplayListDataSync = false; 293 // Make sure we inc first so that we don't fluctuate between 0 and 1, 294 // which would thrash the layer cache 295 if (mStagingDisplayListData) { 296 for (size_t i = 0; i < mStagingDisplayListData->children().size(); i++) { 297 mStagingDisplayListData->children()[i]->mRenderNode->incParentRefCount(); 298 } 299 } 300 deleteDisplayListData(); 301 mDisplayListData = mStagingDisplayListData; 302 mStagingDisplayListData = NULL; 303 if (mDisplayListData) { 304 for (size_t i = 0; i < mDisplayListData->functors.size(); i++) { 305 (*mDisplayListData->functors[i])(DrawGlInfo::kModeSync, NULL); 306 } 307 } 308 damageSelf(info); 309 } 310} 311 312void RenderNode::deleteDisplayListData() { 313 if (mDisplayListData) { 314 for (size_t i = 0; i < mDisplayListData->children().size(); i++) { 315 mDisplayListData->children()[i]->mRenderNode->decParentRefCount(); 316 } 317 } 318 delete mDisplayListData; 319 mDisplayListData = NULL; 320} 321 322void RenderNode::prepareSubTree(TreeInfo& info, DisplayListData* subtree) { 323 if (subtree) { 324 TextureCache& cache = Caches::getInstance().textureCache; 325 info.out.hasFunctors |= subtree->functors.size(); 326 // TODO: Fix ownedBitmapResources to not require disabling prepareTextures 327 // and thus falling out of async drawing path. 328 if (subtree->ownedBitmapResources.size()) { 329 info.prepareTextures = false; 330 } 331 for (size_t i = 0; info.prepareTextures && i < subtree->bitmapResources.size(); i++) { 332 info.prepareTextures = cache.prefetchAndMarkInUse(subtree->bitmapResources[i]); 333 } 334 for (size_t i = 0; i < subtree->children().size(); i++) { 335 DrawRenderNodeOp* op = subtree->children()[i]; 336 RenderNode* childNode = op->mRenderNode; 337 info.damageAccumulator->pushTransform(&op->mTransformFromParent); 338 childNode->prepareTreeImpl(info); 339 info.damageAccumulator->popTransform(); 340 } 341 } 342} 343 344void RenderNode::destroyHardwareResources() { 345 if (mLayer) { 346 LayerRenderer::destroyLayer(mLayer); 347 mLayer = NULL; 348 } 349 if (mDisplayListData) { 350 for (size_t i = 0; i < mDisplayListData->children().size(); i++) { 351 mDisplayListData->children()[i]->mRenderNode->destroyHardwareResources(); 352 } 353 if (mNeedsDisplayListDataSync) { 354 // Next prepare tree we are going to push a new display list, so we can 355 // drop our current one now 356 deleteDisplayListData(); 357 } 358 } 359} 360 361void RenderNode::decParentRefCount() { 362 LOG_ALWAYS_FATAL_IF(!mParentCount, "already 0!"); 363 mParentCount--; 364 if (!mParentCount) { 365 // If a child of ours is being attached to our parent then this will incorrectly 366 // destroy its hardware resources. However, this situation is highly unlikely 367 // and the failure is "just" that the layer is re-created, so this should 368 // be safe enough 369 destroyHardwareResources(); 370 } 371} 372 373/* 374 * For property operations, we pass a savecount of 0, since the operations aren't part of the 375 * displaylist, and thus don't have to compensate for the record-time/playback-time discrepancy in 376 * base saveCount (i.e., how RestoreToCount uses saveCount + properties().getCount()) 377 */ 378#define PROPERTY_SAVECOUNT 0 379 380template <class T> 381void RenderNode::setViewProperties(OpenGLRenderer& renderer, T& handler) { 382#if DEBUG_DISPLAY_LIST 383 properties().debugOutputProperties(handler.level() + 1); 384#endif 385 if (properties().getLeft() != 0 || properties().getTop() != 0) { 386 renderer.translate(properties().getLeft(), properties().getTop()); 387 } 388 if (properties().getStaticMatrix()) { 389 renderer.concatMatrix(*properties().getStaticMatrix()); 390 } else if (properties().getAnimationMatrix()) { 391 renderer.concatMatrix(*properties().getAnimationMatrix()); 392 } 393 if (properties().hasTransformMatrix()) { 394 if (properties().isTransformTranslateOnly()) { 395 renderer.translate(properties().getTranslationX(), properties().getTranslationY()); 396 } else { 397 renderer.concatMatrix(*properties().getTransformMatrix()); 398 } 399 } 400 const bool isLayer = properties().layerProperties().type() != kLayerTypeNone; 401 int clipFlags = properties().getClippingFlags(); 402 if (properties().getAlpha() < 1) { 403 if (isLayer) { 404 clipFlags &= ~CLIP_TO_BOUNDS; // bounds clipping done by layer 405 406 renderer.setOverrideLayerAlpha(properties().getAlpha()); 407 } else if (!properties().getHasOverlappingRendering()) { 408 renderer.scaleAlpha(properties().getAlpha()); 409 } else { 410 Rect layerBounds(0, 0, getWidth(), getHeight()); 411 int saveFlags = SkCanvas::kHasAlphaLayer_SaveFlag; 412 if (clipFlags) { 413 saveFlags |= SkCanvas::kClipToLayer_SaveFlag; 414 properties().getClippingRectForFlags(clipFlags, &layerBounds); 415 clipFlags = 0; // all clipping done by saveLayer 416 } 417 418 SaveLayerOp* op = new (handler.allocator()) SaveLayerOp( 419 layerBounds.left, layerBounds.top, layerBounds.right, layerBounds.bottom, 420 properties().getAlpha() * 255, saveFlags); 421 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 422 } 423 } 424 if (clipFlags) { 425 Rect clipRect; 426 properties().getClippingRectForFlags(clipFlags, &clipRect); 427 ClipRectOp* op = new (handler.allocator()) ClipRectOp( 428 clipRect.left, clipRect.top, clipRect.right, clipRect.bottom, 429 SkRegion::kIntersect_Op); 430 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 431 } 432 433 // TODO: support nesting round rect clips 434 if (mProperties.getRevealClip().willClip()) { 435 Rect bounds; 436 mProperties.getRevealClip().getBounds(&bounds); 437 renderer.setClippingRoundRect(handler.allocator(), bounds, mProperties.getRevealClip().getRadius()); 438 } else if (mProperties.getOutline().willClip()) { 439 renderer.setClippingOutline(handler.allocator(), &(mProperties.getOutline())); 440 } 441} 442 443/** 444 * Apply property-based transformations to input matrix 445 * 446 * If true3dTransform is set to true, the transform applied to the input matrix will use true 4x4 447 * matrix computation instead of the Skia 3x3 matrix + camera hackery. 448 */ 449void RenderNode::applyViewPropertyTransforms(mat4& matrix, bool true3dTransform) const { 450 if (properties().getLeft() != 0 || properties().getTop() != 0) { 451 matrix.translate(properties().getLeft(), properties().getTop()); 452 } 453 if (properties().getStaticMatrix()) { 454 mat4 stat(*properties().getStaticMatrix()); 455 matrix.multiply(stat); 456 } else if (properties().getAnimationMatrix()) { 457 mat4 anim(*properties().getAnimationMatrix()); 458 matrix.multiply(anim); 459 } 460 461 bool applyTranslationZ = true3dTransform && !MathUtils::isZero(properties().getZ()); 462 if (properties().hasTransformMatrix() || applyTranslationZ) { 463 if (properties().isTransformTranslateOnly()) { 464 matrix.translate(properties().getTranslationX(), properties().getTranslationY(), 465 true3dTransform ? properties().getZ() : 0.0f); 466 } else { 467 if (!true3dTransform) { 468 matrix.multiply(*properties().getTransformMatrix()); 469 } else { 470 mat4 true3dMat; 471 true3dMat.loadTranslate( 472 properties().getPivotX() + properties().getTranslationX(), 473 properties().getPivotY() + properties().getTranslationY(), 474 properties().getZ()); 475 true3dMat.rotate(properties().getRotationX(), 1, 0, 0); 476 true3dMat.rotate(properties().getRotationY(), 0, 1, 0); 477 true3dMat.rotate(properties().getRotation(), 0, 0, 1); 478 true3dMat.scale(properties().getScaleX(), properties().getScaleY(), 1); 479 true3dMat.translate(-properties().getPivotX(), -properties().getPivotY()); 480 481 matrix.multiply(true3dMat); 482 } 483 } 484 } 485} 486 487/** 488 * Organizes the DisplayList hierarchy to prepare for background projection reordering. 489 * 490 * This should be called before a call to defer() or drawDisplayList() 491 * 492 * Each DisplayList that serves as a 3d root builds its list of composited children, 493 * which are flagged to not draw in the standard draw loop. 494 */ 495void RenderNode::computeOrdering() { 496 ATRACE_CALL(); 497 mProjectedNodes.clear(); 498 499 // TODO: create temporary DDLOp and call computeOrderingImpl on top DisplayList so that 500 // transform properties are applied correctly to top level children 501 if (mDisplayListData == NULL) return; 502 for (unsigned int i = 0; i < mDisplayListData->children().size(); i++) { 503 DrawRenderNodeOp* childOp = mDisplayListData->children()[i]; 504 childOp->mRenderNode->computeOrderingImpl(childOp, 505 properties().getOutline().getPath(), &mProjectedNodes, &mat4::identity()); 506 } 507} 508 509void RenderNode::computeOrderingImpl( 510 DrawRenderNodeOp* opState, 511 const SkPath* outlineOfProjectionSurface, 512 Vector<DrawRenderNodeOp*>* compositedChildrenOfProjectionSurface, 513 const mat4* transformFromProjectionSurface) { 514 mProjectedNodes.clear(); 515 if (mDisplayListData == NULL || mDisplayListData->isEmpty()) return; 516 517 // TODO: should avoid this calculation in most cases 518 // TODO: just calculate single matrix, down to all leaf composited elements 519 Matrix4 localTransformFromProjectionSurface(*transformFromProjectionSurface); 520 localTransformFromProjectionSurface.multiply(opState->mTransformFromParent); 521 522 if (properties().getProjectBackwards()) { 523 // composited projectee, flag for out of order draw, save matrix, and store in proj surface 524 opState->mSkipInOrderDraw = true; 525 opState->mTransformFromCompositingAncestor.load(localTransformFromProjectionSurface); 526 compositedChildrenOfProjectionSurface->add(opState); 527 } else { 528 // standard in order draw 529 opState->mSkipInOrderDraw = false; 530 } 531 532 if (mDisplayListData->children().size() > 0) { 533 const bool isProjectionReceiver = mDisplayListData->projectionReceiveIndex >= 0; 534 bool haveAppliedPropertiesToProjection = false; 535 for (unsigned int i = 0; i < mDisplayListData->children().size(); i++) { 536 DrawRenderNodeOp* childOp = mDisplayListData->children()[i]; 537 RenderNode* child = childOp->mRenderNode; 538 539 const SkPath* projectionOutline = NULL; 540 Vector<DrawRenderNodeOp*>* projectionChildren = NULL; 541 const mat4* projectionTransform = NULL; 542 if (isProjectionReceiver && !child->properties().getProjectBackwards()) { 543 // if receiving projections, collect projecting descendent 544 545 // Note that if a direct descendent is projecting backwards, we pass it's 546 // grandparent projection collection, since it shouldn't project onto it's 547 // parent, where it will already be drawing. 548 projectionOutline = properties().getOutline().getPath(); 549 projectionChildren = &mProjectedNodes; 550 projectionTransform = &mat4::identity(); 551 } else { 552 if (!haveAppliedPropertiesToProjection) { 553 applyViewPropertyTransforms(localTransformFromProjectionSurface); 554 haveAppliedPropertiesToProjection = true; 555 } 556 projectionOutline = outlineOfProjectionSurface; 557 projectionChildren = compositedChildrenOfProjectionSurface; 558 projectionTransform = &localTransformFromProjectionSurface; 559 } 560 child->computeOrderingImpl(childOp, 561 projectionOutline, projectionChildren, projectionTransform); 562 } 563 } 564} 565 566class DeferOperationHandler { 567public: 568 DeferOperationHandler(DeferStateStruct& deferStruct, int level) 569 : mDeferStruct(deferStruct), mLevel(level) {} 570 inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) { 571 operation->defer(mDeferStruct, saveCount, mLevel, clipToBounds); 572 } 573 inline LinearAllocator& allocator() { return *(mDeferStruct.mAllocator); } 574 inline void startMark(const char* name) {} // do nothing 575 inline void endMark() {} 576 inline int level() { return mLevel; } 577 inline int replayFlags() { return mDeferStruct.mReplayFlags; } 578 inline SkPath* allocPathForFrame() { return mDeferStruct.allocPathForFrame(); } 579 580private: 581 DeferStateStruct& mDeferStruct; 582 const int mLevel; 583}; 584 585void RenderNode::defer(DeferStateStruct& deferStruct, const int level) { 586 DeferOperationHandler handler(deferStruct, level); 587 issueOperations<DeferOperationHandler>(deferStruct.mRenderer, handler); 588} 589 590class ReplayOperationHandler { 591public: 592 ReplayOperationHandler(ReplayStateStruct& replayStruct, int level) 593 : mReplayStruct(replayStruct), mLevel(level) {} 594 inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) { 595#if DEBUG_DISPLAY_LIST_OPS_AS_EVENTS 596 mReplayStruct.mRenderer.eventMark(operation->name()); 597#endif 598 operation->replay(mReplayStruct, saveCount, mLevel, clipToBounds); 599 } 600 inline LinearAllocator& allocator() { return *(mReplayStruct.mAllocator); } 601 inline void startMark(const char* name) { 602 mReplayStruct.mRenderer.startMark(name); 603 } 604 inline void endMark() { 605 mReplayStruct.mRenderer.endMark(); 606 } 607 inline int level() { return mLevel; } 608 inline int replayFlags() { return mReplayStruct.mReplayFlags; } 609 inline SkPath* allocPathForFrame() { return mReplayStruct.allocPathForFrame(); } 610 611private: 612 ReplayStateStruct& mReplayStruct; 613 const int mLevel; 614}; 615 616void RenderNode::replay(ReplayStateStruct& replayStruct, const int level) { 617 ReplayOperationHandler handler(replayStruct, level); 618 issueOperations<ReplayOperationHandler>(replayStruct.mRenderer, handler); 619} 620 621void RenderNode::buildZSortedChildList(const DisplayListData::Chunk& chunk, 622 Vector<ZDrawRenderNodeOpPair>& zTranslatedNodes) { 623 if (chunk.beginChildIndex == chunk.endChildIndex) return; 624 625 for (unsigned int i = chunk.beginChildIndex; i < chunk.endChildIndex; i++) { 626 DrawRenderNodeOp* childOp = mDisplayListData->children()[i]; 627 RenderNode* child = childOp->mRenderNode; 628 float childZ = child->properties().getZ(); 629 630 if (!MathUtils::isZero(childZ) && chunk.reorderChildren) { 631 zTranslatedNodes.add(ZDrawRenderNodeOpPair(childZ, childOp)); 632 childOp->mSkipInOrderDraw = true; 633 } else if (!child->properties().getProjectBackwards()) { 634 // regular, in order drawing DisplayList 635 childOp->mSkipInOrderDraw = false; 636 } 637 } 638 639 // Z sort any 3d children (stable-ness makes z compare fall back to standard drawing order) 640 std::stable_sort(zTranslatedNodes.begin(), zTranslatedNodes.end()); 641} 642 643template <class T> 644void RenderNode::issueDrawShadowOperation(const Matrix4& transformFromParent, T& handler) { 645 if (properties().getAlpha() <= 0.0f 646 || properties().getOutline().getAlpha() <= 0.0f 647 || !properties().getOutline().getPath()) { 648 // no shadow to draw 649 return; 650 } 651 652 mat4 shadowMatrixXY(transformFromParent); 653 applyViewPropertyTransforms(shadowMatrixXY); 654 655 // Z matrix needs actual 3d transformation, so mapped z values will be correct 656 mat4 shadowMatrixZ(transformFromParent); 657 applyViewPropertyTransforms(shadowMatrixZ, true); 658 659 const SkPath* casterOutlinePath = properties().getOutline().getPath(); 660 const SkPath* revealClipPath = properties().getRevealClip().getPath(); 661 if (revealClipPath && revealClipPath->isEmpty()) return; 662 663 float casterAlpha = properties().getAlpha() * properties().getOutline().getAlpha(); 664 665 const SkPath* outlinePath = casterOutlinePath; 666 if (revealClipPath) { 667 // if we can't simply use the caster's path directly, create a temporary one 668 SkPath* frameAllocatedPath = handler.allocPathForFrame(); 669 670 // intersect the outline with the convex reveal clip 671 Op(*casterOutlinePath, *revealClipPath, kIntersect_PathOp, frameAllocatedPath); 672 outlinePath = frameAllocatedPath; 673 } 674 675 DisplayListOp* shadowOp = new (handler.allocator()) DrawShadowOp( 676 shadowMatrixXY, shadowMatrixZ, casterAlpha, outlinePath); 677 handler(shadowOp, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 678} 679 680#define SHADOW_DELTA 0.1f 681 682template <class T> 683void RenderNode::issueOperationsOf3dChildren(ChildrenSelectMode mode, 684 const Matrix4& initialTransform, const Vector<ZDrawRenderNodeOpPair>& zTranslatedNodes, 685 OpenGLRenderer& renderer, T& handler) { 686 const int size = zTranslatedNodes.size(); 687 if (size == 0 688 || (mode == kNegativeZChildren && zTranslatedNodes[0].key > 0.0f) 689 || (mode == kPositiveZChildren && zTranslatedNodes[size - 1].key < 0.0f)) { 690 // no 3d children to draw 691 return; 692 } 693 694 // Apply the base transform of the parent of the 3d children. This isolates 695 // 3d children of the current chunk from transformations made in previous chunks. 696 int rootRestoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 697 renderer.setMatrix(initialTransform); 698 699 /** 700 * Draw shadows and (potential) casters mostly in order, but allow the shadows of casters 701 * with very similar Z heights to draw together. 702 * 703 * This way, if Views A & B have the same Z height and are both casting shadows, the shadows are 704 * underneath both, and neither's shadow is drawn on top of the other. 705 */ 706 const size_t nonNegativeIndex = findNonNegativeIndex(zTranslatedNodes); 707 size_t drawIndex, shadowIndex, endIndex; 708 if (mode == kNegativeZChildren) { 709 drawIndex = 0; 710 endIndex = nonNegativeIndex; 711 shadowIndex = endIndex; // draw no shadows 712 } else { 713 drawIndex = nonNegativeIndex; 714 endIndex = size; 715 shadowIndex = drawIndex; // potentially draw shadow for each pos Z child 716 } 717 718 DISPLAY_LIST_LOGD("%*s%d %s 3d children:", (handler.level() + 1) * 2, "", 719 endIndex - drawIndex, mode == kNegativeZChildren ? "negative" : "positive"); 720 721 float lastCasterZ = 0.0f; 722 while (shadowIndex < endIndex || drawIndex < endIndex) { 723 if (shadowIndex < endIndex) { 724 DrawRenderNodeOp* casterOp = zTranslatedNodes[shadowIndex].value; 725 RenderNode* caster = casterOp->mRenderNode; 726 const float casterZ = zTranslatedNodes[shadowIndex].key; 727 // attempt to render the shadow if the caster about to be drawn is its caster, 728 // OR if its caster's Z value is similar to the previous potential caster 729 if (shadowIndex == drawIndex || casterZ - lastCasterZ < SHADOW_DELTA) { 730 caster->issueDrawShadowOperation(casterOp->mTransformFromParent, handler); 731 732 lastCasterZ = casterZ; // must do this even if current caster not casting a shadow 733 shadowIndex++; 734 continue; 735 } 736 } 737 738 // only the actual child DL draw needs to be in save/restore, 739 // since it modifies the renderer's matrix 740 int restoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 741 742 DrawRenderNodeOp* childOp = zTranslatedNodes[drawIndex].value; 743 RenderNode* child = childOp->mRenderNode; 744 745 renderer.concatMatrix(childOp->mTransformFromParent); 746 childOp->mSkipInOrderDraw = false; // this is horrible, I'm so sorry everyone 747 handler(childOp, renderer.getSaveCount() - 1, properties().getClipToBounds()); 748 childOp->mSkipInOrderDraw = true; 749 750 renderer.restoreToCount(restoreTo); 751 drawIndex++; 752 } 753 renderer.restoreToCount(rootRestoreTo); 754} 755 756template <class T> 757void RenderNode::issueOperationsOfProjectedChildren(OpenGLRenderer& renderer, T& handler) { 758 DISPLAY_LIST_LOGD("%*s%d projected children:", (handler.level() + 1) * 2, "", mProjectedNodes.size()); 759 const SkPath* projectionReceiverOutline = properties().getOutline().getPath(); 760 int restoreTo = renderer.getSaveCount(); 761 762 LinearAllocator& alloc = handler.allocator(); 763 handler(new (alloc) SaveOp(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag), 764 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 765 766 // Transform renderer to match background we're projecting onto 767 // (by offsetting canvas by translationX/Y of background rendernode, since only those are set) 768 const DisplayListOp* op = 769 (mDisplayListData->displayListOps[mDisplayListData->projectionReceiveIndex]); 770 const DrawRenderNodeOp* backgroundOp = reinterpret_cast<const DrawRenderNodeOp*>(op); 771 const RenderProperties& backgroundProps = backgroundOp->mRenderNode->properties(); 772 renderer.translate(backgroundProps.getTranslationX(), backgroundProps.getTranslationY()); 773 774 // If the projection reciever has an outline, we mask each of the projected rendernodes to it 775 // Either with clipRect, or special saveLayer masking 776 if (projectionReceiverOutline != NULL) { 777 const SkRect& outlineBounds = projectionReceiverOutline->getBounds(); 778 if (projectionReceiverOutline->isRect(NULL)) { 779 // mask to the rect outline simply with clipRect 780 ClipRectOp* clipOp = new (alloc) ClipRectOp( 781 outlineBounds.left(), outlineBounds.top(), 782 outlineBounds.right(), outlineBounds.bottom(), SkRegion::kIntersect_Op); 783 handler(clipOp, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 784 } else { 785 // wrap the projected RenderNodes with a SaveLayer that will mask to the outline 786 SaveLayerOp* op = new (alloc) SaveLayerOp( 787 outlineBounds.left(), outlineBounds.top(), 788 outlineBounds.right(), outlineBounds.bottom(), 789 255, SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag | SkCanvas::kARGB_ClipLayer_SaveFlag); 790 op->setMask(projectionReceiverOutline); 791 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 792 793 /* TODO: add optimizations here to take advantage of placement/size of projected 794 * children (which may shrink saveLayer area significantly). This is dependent on 795 * passing actual drawing/dirtying bounds of projected content down to native. 796 */ 797 } 798 } 799 800 // draw projected nodes 801 for (size_t i = 0; i < mProjectedNodes.size(); i++) { 802 DrawRenderNodeOp* childOp = mProjectedNodes[i]; 803 804 // matrix save, concat, and restore can be done safely without allocating operations 805 int restoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 806 renderer.concatMatrix(childOp->mTransformFromCompositingAncestor); 807 childOp->mSkipInOrderDraw = false; // this is horrible, I'm so sorry everyone 808 handler(childOp, renderer.getSaveCount() - 1, properties().getClipToBounds()); 809 childOp->mSkipInOrderDraw = true; 810 renderer.restoreToCount(restoreTo); 811 } 812 813 if (projectionReceiverOutline != NULL) { 814 handler(new (alloc) RestoreToCountOp(restoreTo), 815 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 816 } 817} 818 819/** 820 * This function serves both defer and replay modes, and will organize the displayList's component 821 * operations for a single frame: 822 * 823 * Every 'simple' state operation that affects just the matrix and alpha (or other factors of 824 * DeferredDisplayState) may be issued directly to the renderer, but complex operations (with custom 825 * defer logic) and operations in displayListOps are issued through the 'handler' which handles the 826 * defer vs replay logic, per operation 827 */ 828template <class T> 829void RenderNode::issueOperations(OpenGLRenderer& renderer, T& handler) { 830 const int level = handler.level(); 831 if (mDisplayListData->isEmpty()) { 832 DISPLAY_LIST_LOGD("%*sEmpty display list (%p, %s)", level * 2, "", this, getName()); 833 return; 834 } 835 836 const bool drawLayer = (mLayer && (&renderer != mLayer->renderer)); 837 // If we are updating the contents of mLayer, we don't want to apply any of 838 // the RenderNode's properties to this issueOperations pass. Those will all 839 // be applied when the layer is drawn, aka when this is true. 840 const bool useViewProperties = (!mLayer || drawLayer); 841 if (useViewProperties) { 842 const Outline& outline = properties().getOutline(); 843 if (properties().getAlpha() <= 0 || (outline.getShouldClip() && outline.isEmpty())) { 844 DISPLAY_LIST_LOGD("%*sRejected display list (%p, %s)", level * 2, "", this, getName()); 845 return; 846 } 847 } 848 849 handler.startMark(getName()); 850 851#if DEBUG_DISPLAY_LIST 852 const Rect& clipRect = renderer.getLocalClipBounds(); 853 DISPLAY_LIST_LOGD("%*sStart display list (%p, %s), localClipBounds: %.0f, %.0f, %.0f, %.0f", 854 level * 2, "", this, getName(), 855 clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); 856#endif 857 858 LinearAllocator& alloc = handler.allocator(); 859 int restoreTo = renderer.getSaveCount(); 860 handler(new (alloc) SaveOp(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag), 861 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 862 863 DISPLAY_LIST_LOGD("%*sSave %d %d", (level + 1) * 2, "", 864 SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag, restoreTo); 865 866 if (useViewProperties) { 867 setViewProperties<T>(renderer, handler); 868 } 869 870 bool quickRejected = properties().getClipToBounds() 871 && renderer.quickRejectConservative(0, 0, properties().getWidth(), properties().getHeight()); 872 if (!quickRejected) { 873 Matrix4 initialTransform(*(renderer.currentTransform())); 874 875 if (drawLayer) { 876 handler(new (alloc) DrawLayerOp(mLayer, 0, 0), 877 renderer.getSaveCount() - 1, properties().getClipToBounds()); 878 } else { 879 const int saveCountOffset = renderer.getSaveCount() - 1; 880 const int projectionReceiveIndex = mDisplayListData->projectionReceiveIndex; 881 DisplayListLogBuffer& logBuffer = DisplayListLogBuffer::getInstance(); 882 for (size_t chunkIndex = 0; chunkIndex < mDisplayListData->getChunks().size(); chunkIndex++) { 883 const DisplayListData::Chunk& chunk = mDisplayListData->getChunks()[chunkIndex]; 884 885 Vector<ZDrawRenderNodeOpPair> zTranslatedNodes; 886 buildZSortedChildList(chunk, zTranslatedNodes); 887 888 issueOperationsOf3dChildren(kNegativeZChildren, 889 initialTransform, zTranslatedNodes, renderer, handler); 890 891 892 for (int opIndex = chunk.beginOpIndex; opIndex < chunk.endOpIndex; opIndex++) { 893 DisplayListOp *op = mDisplayListData->displayListOps[opIndex]; 894#if DEBUG_DISPLAY_LIST 895 op->output(level + 1); 896#endif 897 logBuffer.writeCommand(level, op->name()); 898 handler(op, saveCountOffset, properties().getClipToBounds()); 899 900 if (CC_UNLIKELY(!mProjectedNodes.isEmpty() && opIndex == projectionReceiveIndex)) { 901 issueOperationsOfProjectedChildren(renderer, handler); 902 } 903 } 904 905 issueOperationsOf3dChildren(kPositiveZChildren, 906 initialTransform, zTranslatedNodes, renderer, handler); 907 } 908 } 909 } 910 911 DISPLAY_LIST_LOGD("%*sRestoreToCount %d", (level + 1) * 2, "", restoreTo); 912 handler(new (alloc) RestoreToCountOp(restoreTo), 913 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 914 renderer.setOverrideLayerAlpha(1.0f); 915 916 DISPLAY_LIST_LOGD("%*sDone (%p, %s)", level * 2, "", this, getName()); 917 handler.endMark(); 918} 919 920} /* namespace uirenderer */ 921} /* namespace android */ 922