RenderNode.cpp revision 945701126bedff0786f540c41c63c9af37fbbe73
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 // Damage with the old display list first then the new one to catch any 301 // changes in isRenderable or, in the future, bounds 302 damageSelf(info); 303 deleteDisplayListData(); 304 mDisplayListData = mStagingDisplayListData; 305 mStagingDisplayListData = NULL; 306 if (mDisplayListData) { 307 for (size_t i = 0; i < mDisplayListData->functors.size(); i++) { 308 (*mDisplayListData->functors[i])(DrawGlInfo::kModeSync, NULL); 309 } 310 } 311 damageSelf(info); 312 } 313} 314 315void RenderNode::deleteDisplayListData() { 316 if (mDisplayListData) { 317 for (size_t i = 0; i < mDisplayListData->children().size(); i++) { 318 mDisplayListData->children()[i]->mRenderNode->decParentRefCount(); 319 } 320 } 321 delete mDisplayListData; 322 mDisplayListData = NULL; 323} 324 325void RenderNode::prepareSubTree(TreeInfo& info, DisplayListData* subtree) { 326 if (subtree) { 327 TextureCache& cache = Caches::getInstance().textureCache; 328 info.out.hasFunctors |= subtree->functors.size(); 329 // TODO: Fix ownedBitmapResources to not require disabling prepareTextures 330 // and thus falling out of async drawing path. 331 if (subtree->ownedBitmapResources.size()) { 332 info.prepareTextures = false; 333 } 334 for (size_t i = 0; info.prepareTextures && i < subtree->bitmapResources.size(); i++) { 335 info.prepareTextures = cache.prefetchAndMarkInUse(subtree->bitmapResources[i]); 336 } 337 for (size_t i = 0; i < subtree->children().size(); i++) { 338 DrawRenderNodeOp* op = subtree->children()[i]; 339 RenderNode* childNode = op->mRenderNode; 340 info.damageAccumulator->pushTransform(&op->mTransformFromParent); 341 childNode->prepareTreeImpl(info); 342 info.damageAccumulator->popTransform(); 343 } 344 } 345} 346 347void RenderNode::destroyHardwareResources() { 348 if (mLayer) { 349 LayerRenderer::destroyLayer(mLayer); 350 mLayer = NULL; 351 } 352 if (mDisplayListData) { 353 for (size_t i = 0; i < mDisplayListData->children().size(); i++) { 354 mDisplayListData->children()[i]->mRenderNode->destroyHardwareResources(); 355 } 356 if (mNeedsDisplayListDataSync) { 357 // Next prepare tree we are going to push a new display list, so we can 358 // drop our current one now 359 deleteDisplayListData(); 360 } 361 } 362} 363 364void RenderNode::decParentRefCount() { 365 LOG_ALWAYS_FATAL_IF(!mParentCount, "already 0!"); 366 mParentCount--; 367 if (!mParentCount) { 368 // If a child of ours is being attached to our parent then this will incorrectly 369 // destroy its hardware resources. However, this situation is highly unlikely 370 // and the failure is "just" that the layer is re-created, so this should 371 // be safe enough 372 destroyHardwareResources(); 373 } 374} 375 376/* 377 * For property operations, we pass a savecount of 0, since the operations aren't part of the 378 * displaylist, and thus don't have to compensate for the record-time/playback-time discrepancy in 379 * base saveCount (i.e., how RestoreToCount uses saveCount + properties().getCount()) 380 */ 381#define PROPERTY_SAVECOUNT 0 382 383template <class T> 384void RenderNode::setViewProperties(OpenGLRenderer& renderer, T& handler) { 385#if DEBUG_DISPLAY_LIST 386 properties().debugOutputProperties(handler.level() + 1); 387#endif 388 if (properties().getLeft() != 0 || properties().getTop() != 0) { 389 renderer.translate(properties().getLeft(), properties().getTop()); 390 } 391 if (properties().getStaticMatrix()) { 392 renderer.concatMatrix(*properties().getStaticMatrix()); 393 } else if (properties().getAnimationMatrix()) { 394 renderer.concatMatrix(*properties().getAnimationMatrix()); 395 } 396 if (properties().hasTransformMatrix()) { 397 if (properties().isTransformTranslateOnly()) { 398 renderer.translate(properties().getTranslationX(), properties().getTranslationY()); 399 } else { 400 renderer.concatMatrix(*properties().getTransformMatrix()); 401 } 402 } 403 const bool isLayer = properties().layerProperties().type() != kLayerTypeNone; 404 int clipFlags = properties().getClippingFlags(); 405 if (properties().getAlpha() < 1) { 406 if (isLayer) { 407 clipFlags &= ~CLIP_TO_BOUNDS; // bounds clipping done by layer 408 409 renderer.setOverrideLayerAlpha(properties().getAlpha()); 410 } else if (!properties().getHasOverlappingRendering()) { 411 renderer.scaleAlpha(properties().getAlpha()); 412 } else { 413 Rect layerBounds(0, 0, getWidth(), getHeight()); 414 int saveFlags = SkCanvas::kHasAlphaLayer_SaveFlag; 415 if (clipFlags) { 416 saveFlags |= SkCanvas::kClipToLayer_SaveFlag; 417 properties().getClippingRectForFlags(clipFlags, &layerBounds); 418 clipFlags = 0; // all clipping done by saveLayer 419 } 420 421 SaveLayerOp* op = new (handler.allocator()) SaveLayerOp( 422 layerBounds.left, layerBounds.top, layerBounds.right, layerBounds.bottom, 423 properties().getAlpha() * 255, saveFlags); 424 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 425 } 426 } 427 if (clipFlags) { 428 Rect clipRect; 429 properties().getClippingRectForFlags(clipFlags, &clipRect); 430 ClipRectOp* op = new (handler.allocator()) ClipRectOp( 431 clipRect.left, clipRect.top, clipRect.right, clipRect.bottom, 432 SkRegion::kIntersect_Op); 433 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 434 } 435 436 // TODO: support nesting round rect clips 437 if (mProperties.getRevealClip().willClip()) { 438 Rect bounds; 439 mProperties.getRevealClip().getBounds(&bounds); 440 renderer.setClippingRoundRect(handler.allocator(), bounds, mProperties.getRevealClip().getRadius()); 441 } else if (mProperties.getOutline().willClip()) { 442 renderer.setClippingOutline(handler.allocator(), &(mProperties.getOutline())); 443 } 444} 445 446/** 447 * Apply property-based transformations to input matrix 448 * 449 * If true3dTransform is set to true, the transform applied to the input matrix will use true 4x4 450 * matrix computation instead of the Skia 3x3 matrix + camera hackery. 451 */ 452void RenderNode::applyViewPropertyTransforms(mat4& matrix, bool true3dTransform) const { 453 if (properties().getLeft() != 0 || properties().getTop() != 0) { 454 matrix.translate(properties().getLeft(), properties().getTop()); 455 } 456 if (properties().getStaticMatrix()) { 457 mat4 stat(*properties().getStaticMatrix()); 458 matrix.multiply(stat); 459 } else if (properties().getAnimationMatrix()) { 460 mat4 anim(*properties().getAnimationMatrix()); 461 matrix.multiply(anim); 462 } 463 464 bool applyTranslationZ = true3dTransform && !MathUtils::isZero(properties().getZ()); 465 if (properties().hasTransformMatrix() || applyTranslationZ) { 466 if (properties().isTransformTranslateOnly()) { 467 matrix.translate(properties().getTranslationX(), properties().getTranslationY(), 468 true3dTransform ? properties().getZ() : 0.0f); 469 } else { 470 if (!true3dTransform) { 471 matrix.multiply(*properties().getTransformMatrix()); 472 } else { 473 mat4 true3dMat; 474 true3dMat.loadTranslate( 475 properties().getPivotX() + properties().getTranslationX(), 476 properties().getPivotY() + properties().getTranslationY(), 477 properties().getZ()); 478 true3dMat.rotate(properties().getRotationX(), 1, 0, 0); 479 true3dMat.rotate(properties().getRotationY(), 0, 1, 0); 480 true3dMat.rotate(properties().getRotation(), 0, 0, 1); 481 true3dMat.scale(properties().getScaleX(), properties().getScaleY(), 1); 482 true3dMat.translate(-properties().getPivotX(), -properties().getPivotY()); 483 484 matrix.multiply(true3dMat); 485 } 486 } 487 } 488} 489 490/** 491 * Organizes the DisplayList hierarchy to prepare for background projection reordering. 492 * 493 * This should be called before a call to defer() or drawDisplayList() 494 * 495 * Each DisplayList that serves as a 3d root builds its list of composited children, 496 * which are flagged to not draw in the standard draw loop. 497 */ 498void RenderNode::computeOrdering() { 499 ATRACE_CALL(); 500 mProjectedNodes.clear(); 501 502 // TODO: create temporary DDLOp and call computeOrderingImpl on top DisplayList so that 503 // transform properties are applied correctly to top level children 504 if (mDisplayListData == NULL) return; 505 for (unsigned int i = 0; i < mDisplayListData->children().size(); i++) { 506 DrawRenderNodeOp* childOp = mDisplayListData->children()[i]; 507 childOp->mRenderNode->computeOrderingImpl(childOp, 508 properties().getOutline().getPath(), &mProjectedNodes, &mat4::identity()); 509 } 510} 511 512void RenderNode::computeOrderingImpl( 513 DrawRenderNodeOp* opState, 514 const SkPath* outlineOfProjectionSurface, 515 Vector<DrawRenderNodeOp*>* compositedChildrenOfProjectionSurface, 516 const mat4* transformFromProjectionSurface) { 517 mProjectedNodes.clear(); 518 if (mDisplayListData == NULL || mDisplayListData->isEmpty()) return; 519 520 // TODO: should avoid this calculation in most cases 521 // TODO: just calculate single matrix, down to all leaf composited elements 522 Matrix4 localTransformFromProjectionSurface(*transformFromProjectionSurface); 523 localTransformFromProjectionSurface.multiply(opState->mTransformFromParent); 524 525 if (properties().getProjectBackwards()) { 526 // composited projectee, flag for out of order draw, save matrix, and store in proj surface 527 opState->mSkipInOrderDraw = true; 528 opState->mTransformFromCompositingAncestor.load(localTransformFromProjectionSurface); 529 compositedChildrenOfProjectionSurface->add(opState); 530 } else { 531 // standard in order draw 532 opState->mSkipInOrderDraw = false; 533 } 534 535 if (mDisplayListData->children().size() > 0) { 536 const bool isProjectionReceiver = mDisplayListData->projectionReceiveIndex >= 0; 537 bool haveAppliedPropertiesToProjection = false; 538 for (unsigned int i = 0; i < mDisplayListData->children().size(); i++) { 539 DrawRenderNodeOp* childOp = mDisplayListData->children()[i]; 540 RenderNode* child = childOp->mRenderNode; 541 542 const SkPath* projectionOutline = NULL; 543 Vector<DrawRenderNodeOp*>* projectionChildren = NULL; 544 const mat4* projectionTransform = NULL; 545 if (isProjectionReceiver && !child->properties().getProjectBackwards()) { 546 // if receiving projections, collect projecting descendent 547 548 // Note that if a direct descendent is projecting backwards, we pass it's 549 // grandparent projection collection, since it shouldn't project onto it's 550 // parent, where it will already be drawing. 551 projectionOutline = properties().getOutline().getPath(); 552 projectionChildren = &mProjectedNodes; 553 projectionTransform = &mat4::identity(); 554 } else { 555 if (!haveAppliedPropertiesToProjection) { 556 applyViewPropertyTransforms(localTransformFromProjectionSurface); 557 haveAppliedPropertiesToProjection = true; 558 } 559 projectionOutline = outlineOfProjectionSurface; 560 projectionChildren = compositedChildrenOfProjectionSurface; 561 projectionTransform = &localTransformFromProjectionSurface; 562 } 563 child->computeOrderingImpl(childOp, 564 projectionOutline, projectionChildren, projectionTransform); 565 } 566 } 567} 568 569class DeferOperationHandler { 570public: 571 DeferOperationHandler(DeferStateStruct& deferStruct, int level) 572 : mDeferStruct(deferStruct), mLevel(level) {} 573 inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) { 574 operation->defer(mDeferStruct, saveCount, mLevel, clipToBounds); 575 } 576 inline LinearAllocator& allocator() { return *(mDeferStruct.mAllocator); } 577 inline void startMark(const char* name) {} // do nothing 578 inline void endMark() {} 579 inline int level() { return mLevel; } 580 inline int replayFlags() { return mDeferStruct.mReplayFlags; } 581 inline SkPath* allocPathForFrame() { return mDeferStruct.allocPathForFrame(); } 582 583private: 584 DeferStateStruct& mDeferStruct; 585 const int mLevel; 586}; 587 588void RenderNode::defer(DeferStateStruct& deferStruct, const int level) { 589 DeferOperationHandler handler(deferStruct, level); 590 issueOperations<DeferOperationHandler>(deferStruct.mRenderer, handler); 591} 592 593class ReplayOperationHandler { 594public: 595 ReplayOperationHandler(ReplayStateStruct& replayStruct, int level) 596 : mReplayStruct(replayStruct), mLevel(level) {} 597 inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) { 598#if DEBUG_DISPLAY_LIST_OPS_AS_EVENTS 599 mReplayStruct.mRenderer.eventMark(operation->name()); 600#endif 601 operation->replay(mReplayStruct, saveCount, mLevel, clipToBounds); 602 } 603 inline LinearAllocator& allocator() { return *(mReplayStruct.mAllocator); } 604 inline void startMark(const char* name) { 605 mReplayStruct.mRenderer.startMark(name); 606 } 607 inline void endMark() { 608 mReplayStruct.mRenderer.endMark(); 609 } 610 inline int level() { return mLevel; } 611 inline int replayFlags() { return mReplayStruct.mReplayFlags; } 612 inline SkPath* allocPathForFrame() { return mReplayStruct.allocPathForFrame(); } 613 614private: 615 ReplayStateStruct& mReplayStruct; 616 const int mLevel; 617}; 618 619void RenderNode::replay(ReplayStateStruct& replayStruct, const int level) { 620 ReplayOperationHandler handler(replayStruct, level); 621 issueOperations<ReplayOperationHandler>(replayStruct.mRenderer, handler); 622} 623 624void RenderNode::buildZSortedChildList(const DisplayListData::Chunk& chunk, 625 Vector<ZDrawRenderNodeOpPair>& zTranslatedNodes) { 626 if (chunk.beginChildIndex == chunk.endChildIndex) return; 627 628 for (unsigned int i = chunk.beginChildIndex; i < chunk.endChildIndex; i++) { 629 DrawRenderNodeOp* childOp = mDisplayListData->children()[i]; 630 RenderNode* child = childOp->mRenderNode; 631 float childZ = child->properties().getZ(); 632 633 if (!MathUtils::isZero(childZ) && chunk.reorderChildren) { 634 zTranslatedNodes.add(ZDrawRenderNodeOpPair(childZ, childOp)); 635 childOp->mSkipInOrderDraw = true; 636 } else if (!child->properties().getProjectBackwards()) { 637 // regular, in order drawing DisplayList 638 childOp->mSkipInOrderDraw = false; 639 } 640 } 641 642 // Z sort any 3d children (stable-ness makes z compare fall back to standard drawing order) 643 std::stable_sort(zTranslatedNodes.begin(), zTranslatedNodes.end()); 644} 645 646template <class T> 647void RenderNode::issueDrawShadowOperation(const Matrix4& transformFromParent, T& handler) { 648 if (properties().getAlpha() <= 0.0f 649 || properties().getOutline().getAlpha() <= 0.0f 650 || !properties().getOutline().getPath()) { 651 // no shadow to draw 652 return; 653 } 654 655 mat4 shadowMatrixXY(transformFromParent); 656 applyViewPropertyTransforms(shadowMatrixXY); 657 658 // Z matrix needs actual 3d transformation, so mapped z values will be correct 659 mat4 shadowMatrixZ(transformFromParent); 660 applyViewPropertyTransforms(shadowMatrixZ, true); 661 662 const SkPath* casterOutlinePath = properties().getOutline().getPath(); 663 const SkPath* revealClipPath = properties().getRevealClip().getPath(); 664 if (revealClipPath && revealClipPath->isEmpty()) return; 665 666 float casterAlpha = properties().getAlpha() * properties().getOutline().getAlpha(); 667 668 const SkPath* outlinePath = casterOutlinePath; 669 if (revealClipPath) { 670 // if we can't simply use the caster's path directly, create a temporary one 671 SkPath* frameAllocatedPath = handler.allocPathForFrame(); 672 673 // intersect the outline with the convex reveal clip 674 Op(*casterOutlinePath, *revealClipPath, kIntersect_PathOp, frameAllocatedPath); 675 outlinePath = frameAllocatedPath; 676 } 677 678 DisplayListOp* shadowOp = new (handler.allocator()) DrawShadowOp( 679 shadowMatrixXY, shadowMatrixZ, casterAlpha, outlinePath); 680 handler(shadowOp, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 681} 682 683#define SHADOW_DELTA 0.1f 684 685template <class T> 686void RenderNode::issueOperationsOf3dChildren(ChildrenSelectMode mode, 687 const Matrix4& initialTransform, const Vector<ZDrawRenderNodeOpPair>& zTranslatedNodes, 688 OpenGLRenderer& renderer, T& handler) { 689 const int size = zTranslatedNodes.size(); 690 if (size == 0 691 || (mode == kNegativeZChildren && zTranslatedNodes[0].key > 0.0f) 692 || (mode == kPositiveZChildren && zTranslatedNodes[size - 1].key < 0.0f)) { 693 // no 3d children to draw 694 return; 695 } 696 697 // Apply the base transform of the parent of the 3d children. This isolates 698 // 3d children of the current chunk from transformations made in previous chunks. 699 int rootRestoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 700 renderer.setMatrix(initialTransform); 701 702 /** 703 * Draw shadows and (potential) casters mostly in order, but allow the shadows of casters 704 * with very similar Z heights to draw together. 705 * 706 * This way, if Views A & B have the same Z height and are both casting shadows, the shadows are 707 * underneath both, and neither's shadow is drawn on top of the other. 708 */ 709 const size_t nonNegativeIndex = findNonNegativeIndex(zTranslatedNodes); 710 size_t drawIndex, shadowIndex, endIndex; 711 if (mode == kNegativeZChildren) { 712 drawIndex = 0; 713 endIndex = nonNegativeIndex; 714 shadowIndex = endIndex; // draw no shadows 715 } else { 716 drawIndex = nonNegativeIndex; 717 endIndex = size; 718 shadowIndex = drawIndex; // potentially draw shadow for each pos Z child 719 } 720 721 DISPLAY_LIST_LOGD("%*s%d %s 3d children:", (handler.level() + 1) * 2, "", 722 endIndex - drawIndex, mode == kNegativeZChildren ? "negative" : "positive"); 723 724 float lastCasterZ = 0.0f; 725 while (shadowIndex < endIndex || drawIndex < endIndex) { 726 if (shadowIndex < endIndex) { 727 DrawRenderNodeOp* casterOp = zTranslatedNodes[shadowIndex].value; 728 RenderNode* caster = casterOp->mRenderNode; 729 const float casterZ = zTranslatedNodes[shadowIndex].key; 730 // attempt to render the shadow if the caster about to be drawn is its caster, 731 // OR if its caster's Z value is similar to the previous potential caster 732 if (shadowIndex == drawIndex || casterZ - lastCasterZ < SHADOW_DELTA) { 733 caster->issueDrawShadowOperation(casterOp->mTransformFromParent, handler); 734 735 lastCasterZ = casterZ; // must do this even if current caster not casting a shadow 736 shadowIndex++; 737 continue; 738 } 739 } 740 741 // only the actual child DL draw needs to be in save/restore, 742 // since it modifies the renderer's matrix 743 int restoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 744 745 DrawRenderNodeOp* childOp = zTranslatedNodes[drawIndex].value; 746 RenderNode* child = childOp->mRenderNode; 747 748 renderer.concatMatrix(childOp->mTransformFromParent); 749 childOp->mSkipInOrderDraw = false; // this is horrible, I'm so sorry everyone 750 handler(childOp, renderer.getSaveCount() - 1, properties().getClipToBounds()); 751 childOp->mSkipInOrderDraw = true; 752 753 renderer.restoreToCount(restoreTo); 754 drawIndex++; 755 } 756 renderer.restoreToCount(rootRestoreTo); 757} 758 759template <class T> 760void RenderNode::issueOperationsOfProjectedChildren(OpenGLRenderer& renderer, T& handler) { 761 DISPLAY_LIST_LOGD("%*s%d projected children:", (handler.level() + 1) * 2, "", mProjectedNodes.size()); 762 const SkPath* projectionReceiverOutline = properties().getOutline().getPath(); 763 int restoreTo = renderer.getSaveCount(); 764 765 LinearAllocator& alloc = handler.allocator(); 766 handler(new (alloc) SaveOp(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag), 767 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 768 769 // Transform renderer to match background we're projecting onto 770 // (by offsetting canvas by translationX/Y of background rendernode, since only those are set) 771 const DisplayListOp* op = 772 (mDisplayListData->displayListOps[mDisplayListData->projectionReceiveIndex]); 773 const DrawRenderNodeOp* backgroundOp = reinterpret_cast<const DrawRenderNodeOp*>(op); 774 const RenderProperties& backgroundProps = backgroundOp->mRenderNode->properties(); 775 renderer.translate(backgroundProps.getTranslationX(), backgroundProps.getTranslationY()); 776 777 // If the projection reciever has an outline, we mask each of the projected rendernodes to it 778 // Either with clipRect, or special saveLayer masking 779 if (projectionReceiverOutline != NULL) { 780 const SkRect& outlineBounds = projectionReceiverOutline->getBounds(); 781 if (projectionReceiverOutline->isRect(NULL)) { 782 // mask to the rect outline simply with clipRect 783 ClipRectOp* clipOp = new (alloc) ClipRectOp( 784 outlineBounds.left(), outlineBounds.top(), 785 outlineBounds.right(), outlineBounds.bottom(), SkRegion::kIntersect_Op); 786 handler(clipOp, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 787 } else { 788 // wrap the projected RenderNodes with a SaveLayer that will mask to the outline 789 SaveLayerOp* op = new (alloc) SaveLayerOp( 790 outlineBounds.left(), outlineBounds.top(), 791 outlineBounds.right(), outlineBounds.bottom(), 792 255, SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag | SkCanvas::kARGB_ClipLayer_SaveFlag); 793 op->setMask(projectionReceiverOutline); 794 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 795 796 /* TODO: add optimizations here to take advantage of placement/size of projected 797 * children (which may shrink saveLayer area significantly). This is dependent on 798 * passing actual drawing/dirtying bounds of projected content down to native. 799 */ 800 } 801 } 802 803 // draw projected nodes 804 for (size_t i = 0; i < mProjectedNodes.size(); i++) { 805 DrawRenderNodeOp* childOp = mProjectedNodes[i]; 806 807 // matrix save, concat, and restore can be done safely without allocating operations 808 int restoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 809 renderer.concatMatrix(childOp->mTransformFromCompositingAncestor); 810 childOp->mSkipInOrderDraw = false; // this is horrible, I'm so sorry everyone 811 handler(childOp, renderer.getSaveCount() - 1, properties().getClipToBounds()); 812 childOp->mSkipInOrderDraw = true; 813 renderer.restoreToCount(restoreTo); 814 } 815 816 if (projectionReceiverOutline != NULL) { 817 handler(new (alloc) RestoreToCountOp(restoreTo), 818 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 819 } 820} 821 822/** 823 * This function serves both defer and replay modes, and will organize the displayList's component 824 * operations for a single frame: 825 * 826 * Every 'simple' state operation that affects just the matrix and alpha (or other factors of 827 * DeferredDisplayState) may be issued directly to the renderer, but complex operations (with custom 828 * defer logic) and operations in displayListOps are issued through the 'handler' which handles the 829 * defer vs replay logic, per operation 830 */ 831template <class T> 832void RenderNode::issueOperations(OpenGLRenderer& renderer, T& handler) { 833 const int level = handler.level(); 834 if (mDisplayListData->isEmpty()) { 835 DISPLAY_LIST_LOGD("%*sEmpty display list (%p, %s)", level * 2, "", this, getName()); 836 return; 837 } 838 839 const bool drawLayer = (mLayer && (&renderer != mLayer->renderer)); 840 // If we are updating the contents of mLayer, we don't want to apply any of 841 // the RenderNode's properties to this issueOperations pass. Those will all 842 // be applied when the layer is drawn, aka when this is true. 843 const bool useViewProperties = (!mLayer || drawLayer); 844 if (useViewProperties) { 845 const Outline& outline = properties().getOutline(); 846 if (properties().getAlpha() <= 0 || (outline.getShouldClip() && outline.isEmpty())) { 847 DISPLAY_LIST_LOGD("%*sRejected display list (%p, %s)", level * 2, "", this, getName()); 848 return; 849 } 850 } 851 852 handler.startMark(getName()); 853 854#if DEBUG_DISPLAY_LIST 855 const Rect& clipRect = renderer.getLocalClipBounds(); 856 DISPLAY_LIST_LOGD("%*sStart display list (%p, %s), localClipBounds: %.0f, %.0f, %.0f, %.0f", 857 level * 2, "", this, getName(), 858 clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); 859#endif 860 861 LinearAllocator& alloc = handler.allocator(); 862 int restoreTo = renderer.getSaveCount(); 863 handler(new (alloc) SaveOp(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag), 864 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 865 866 DISPLAY_LIST_LOGD("%*sSave %d %d", (level + 1) * 2, "", 867 SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag, restoreTo); 868 869 if (useViewProperties) { 870 setViewProperties<T>(renderer, handler); 871 } 872 873 bool quickRejected = properties().getClipToBounds() 874 && renderer.quickRejectConservative(0, 0, properties().getWidth(), properties().getHeight()); 875 if (!quickRejected) { 876 Matrix4 initialTransform(*(renderer.currentTransform())); 877 878 if (drawLayer) { 879 handler(new (alloc) DrawLayerOp(mLayer, 0, 0), 880 renderer.getSaveCount() - 1, properties().getClipToBounds()); 881 } else { 882 const int saveCountOffset = renderer.getSaveCount() - 1; 883 const int projectionReceiveIndex = mDisplayListData->projectionReceiveIndex; 884 DisplayListLogBuffer& logBuffer = DisplayListLogBuffer::getInstance(); 885 for (size_t chunkIndex = 0; chunkIndex < mDisplayListData->getChunks().size(); chunkIndex++) { 886 const DisplayListData::Chunk& chunk = mDisplayListData->getChunks()[chunkIndex]; 887 888 Vector<ZDrawRenderNodeOpPair> zTranslatedNodes; 889 buildZSortedChildList(chunk, zTranslatedNodes); 890 891 issueOperationsOf3dChildren(kNegativeZChildren, 892 initialTransform, zTranslatedNodes, renderer, handler); 893 894 895 for (int opIndex = chunk.beginOpIndex; opIndex < chunk.endOpIndex; opIndex++) { 896 DisplayListOp *op = mDisplayListData->displayListOps[opIndex]; 897#if DEBUG_DISPLAY_LIST 898 op->output(level + 1); 899#endif 900 logBuffer.writeCommand(level, op->name()); 901 handler(op, saveCountOffset, properties().getClipToBounds()); 902 903 if (CC_UNLIKELY(!mProjectedNodes.isEmpty() && opIndex == projectionReceiveIndex)) { 904 issueOperationsOfProjectedChildren(renderer, handler); 905 } 906 } 907 908 issueOperationsOf3dChildren(kPositiveZChildren, 909 initialTransform, zTranslatedNodes, renderer, handler); 910 } 911 } 912 } 913 914 DISPLAY_LIST_LOGD("%*sRestoreToCount %d", (level + 1) * 2, "", restoreTo); 915 handler(new (alloc) RestoreToCountOp(restoreTo), 916 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 917 renderer.setOverrideLayerAlpha(1.0f); 918 919 DISPLAY_LIST_LOGD("%*sDone (%p, %s)", level * 2, "", this, getName()); 920 handler.endMark(); 921} 922 923} /* namespace uirenderer */ 924} /* namespace android */ 925