RenderNode.cpp revision 3f085429fd47ebd32ac2463b3eae2a5a6c17be25
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 <SkCanvas.h> 22#include <algorithm> 23 24#include <utils/Trace.h> 25 26#include "Debug.h" 27#include "DisplayListOp.h" 28#include "DisplayListLogBuffer.h" 29 30namespace android { 31namespace uirenderer { 32 33void RenderNode::outputLogBuffer(int fd) { 34 DisplayListLogBuffer& logBuffer = DisplayListLogBuffer::getInstance(); 35 if (logBuffer.isEmpty()) { 36 return; 37 } 38 39 FILE *file = fdopen(fd, "a"); 40 41 fprintf(file, "\nRecent DisplayList operations\n"); 42 logBuffer.outputCommands(file); 43 44 String8 cachesLog; 45 Caches::getInstance().dumpMemoryUsage(cachesLog); 46 fprintf(file, "\nCaches:\n%s", cachesLog.string()); 47 fprintf(file, "\n"); 48 49 fflush(file); 50} 51 52RenderNode::RenderNode() 53 : mNeedsPropertiesSync(false) 54 , mNeedsDisplayListDataSync(false) 55 , mDisplayListData(0) 56 , mStagingDisplayListData(0) { 57} 58 59RenderNode::~RenderNode() { 60 delete mDisplayListData; 61 delete mStagingDisplayListData; 62} 63 64void RenderNode::setStagingDisplayList(DisplayListData* data) { 65 mNeedsDisplayListDataSync = true; 66 delete mStagingDisplayListData; 67 mStagingDisplayListData = data; 68 if (mStagingDisplayListData) { 69 Caches::getInstance().registerFunctors(mStagingDisplayListData->functorCount); 70 } 71} 72 73/** 74 * This function is a simplified version of replay(), where we simply retrieve and log the 75 * display list. This function should remain in sync with the replay() function. 76 */ 77void RenderNode::output(uint32_t level) { 78 ALOGD("%*sStart display list (%p, %s, render=%d)", (level - 1) * 2, "", this, 79 getName(), isRenderable()); 80 ALOGD("%*s%s %d", level * 2, "", "Save", 81 SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 82 83 properties().debugOutputProperties(level); 84 int flags = DisplayListOp::kOpLogFlag_Recurse; 85 for (unsigned int i = 0; i < mDisplayListData->displayListOps.size(); i++) { 86 mDisplayListData->displayListOps[i]->output(level, flags); 87 } 88 89 ALOGD("%*sDone (%p, %s)", (level - 1) * 2, "", this, getName()); 90} 91 92void RenderNode::prepareTree(TreeInfo& info) { 93 ATRACE_CALL(); 94 95 prepareTreeImpl(info); 96} 97 98void RenderNode::prepareTreeImpl(TreeInfo& info) { 99 pushStagingChanges(info); 100 prepareSubTree(info, mDisplayListData); 101} 102 103void RenderNode::pushStagingChanges(TreeInfo& info) { 104 if (mNeedsPropertiesSync) { 105 mNeedsPropertiesSync = false; 106 mProperties = mStagingProperties; 107 } 108 if (mNeedsDisplayListDataSync) { 109 mNeedsDisplayListDataSync = false; 110 // Do a push pass on the old tree to handle freeing DisplayListData 111 // that are no longer used 112 TreeInfo oldTreeInfo; 113 prepareSubTree(oldTreeInfo, mDisplayListData); 114 // TODO: The damage for the old tree should be accounted for 115 delete mDisplayListData; 116 mDisplayListData = mStagingDisplayListData; 117 mStagingDisplayListData = 0; 118 } 119} 120 121void RenderNode::prepareSubTree(TreeInfo& info, DisplayListData* subtree) { 122 if (subtree) { 123 TextureCache& cache = Caches::getInstance().textureCache; 124 info.hasFunctors |= subtree->functorCount; 125 // TODO: Fix ownedBitmapResources to not require disabling prepareTextures 126 // and thus falling out of async drawing path. 127 if (subtree->ownedBitmapResources.size()) { 128 info.prepareTextures = false; 129 } 130 for (size_t i = 0; info.prepareTextures && i < subtree->bitmapResources.size(); i++) { 131 info.prepareTextures = cache.prefetchAndMarkInUse(subtree->bitmapResources[i]); 132 } 133 for (size_t i = 0; i < subtree->children().size(); i++) { 134 RenderNode* childNode = subtree->children()[i]->mDisplayList; 135 childNode->prepareTreeImpl(info); 136 } 137 } 138} 139 140/* 141 * For property operations, we pass a savecount of 0, since the operations aren't part of the 142 * displaylist, and thus don't have to compensate for the record-time/playback-time discrepancy in 143 * base saveCount (i.e., how RestoreToCount uses saveCount + properties().getCount()) 144 */ 145#define PROPERTY_SAVECOUNT 0 146 147template <class T> 148void RenderNode::setViewProperties(OpenGLRenderer& renderer, T& handler) { 149#if DEBUG_DISPLAY_LIST 150 properties().debugOutputProperties(handler.level() + 1); 151#endif 152 if (properties().getLeft() != 0 || properties().getTop() != 0) { 153 renderer.translate(properties().getLeft(), properties().getTop()); 154 } 155 if (properties().getStaticMatrix()) { 156 renderer.concatMatrix(properties().getStaticMatrix()); 157 } else if (properties().getAnimationMatrix()) { 158 renderer.concatMatrix(properties().getAnimationMatrix()); 159 } 160 if (properties().hasTransformMatrix()) { 161 if (properties().isTransformTranslateOnly()) { 162 renderer.translate(properties().getTranslationX(), properties().getTranslationY()); 163 } else { 164 renderer.concatMatrix(*properties().getTransformMatrix()); 165 } 166 } 167 bool clipToBoundsNeeded = properties().getCaching() ? false : properties().getClipToBounds(); 168 if (properties().getAlpha() < 1) { 169 if (properties().getCaching()) { 170 renderer.setOverrideLayerAlpha(properties().getAlpha()); 171 } else if (!properties().getHasOverlappingRendering()) { 172 renderer.scaleAlpha(properties().getAlpha()); 173 } else { 174 // TODO: should be able to store the size of a DL at record time and not 175 // have to pass it into this call. In fact, this information might be in the 176 // location/size info that we store with the new native transform data. 177 int saveFlags = SkCanvas::kHasAlphaLayer_SaveFlag; 178 if (clipToBoundsNeeded) { 179 saveFlags |= SkCanvas::kClipToLayer_SaveFlag; 180 clipToBoundsNeeded = false; // clipping done by saveLayer 181 } 182 183 SaveLayerOp* op = new (handler.allocator()) SaveLayerOp( 184 0, 0, properties().getWidth(), properties().getHeight(), 185 properties().getAlpha() * 255, saveFlags); 186 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 187 } 188 } 189 if (clipToBoundsNeeded) { 190 ClipRectOp* op = new (handler.allocator()) ClipRectOp( 191 0, 0, properties().getWidth(), properties().getHeight(), SkRegion::kIntersect_Op); 192 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 193 } 194 195 if (CC_UNLIKELY(properties().hasClippingPath())) { 196 // TODO: optimize for round rect/circle clipping 197 const SkPath* path = properties().getClippingPath(); 198 ClipPathOp* op = new (handler.allocator()) ClipPathOp(path, SkRegion::kIntersect_Op); 199 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 200 } 201} 202 203/** 204 * Apply property-based transformations to input matrix 205 * 206 * If true3dTransform is set to true, the transform applied to the input matrix will use true 4x4 207 * matrix computation instead of the Skia 3x3 matrix + camera hackery. 208 */ 209void RenderNode::applyViewPropertyTransforms(mat4& matrix, bool true3dTransform) { 210 if (properties().getLeft() != 0 || properties().getTop() != 0) { 211 matrix.translate(properties().getLeft(), properties().getTop()); 212 } 213 if (properties().getStaticMatrix()) { 214 mat4 stat(*properties().getStaticMatrix()); 215 matrix.multiply(stat); 216 } else if (properties().getAnimationMatrix()) { 217 mat4 anim(*properties().getAnimationMatrix()); 218 matrix.multiply(anim); 219 } 220 if (properties().hasTransformMatrix()) { 221 if (properties().isTransformTranslateOnly()) { 222 matrix.translate(properties().getTranslationX(), properties().getTranslationY(), 223 true3dTransform ? properties().getTranslationZ() : 0.0f); 224 } else { 225 if (!true3dTransform) { 226 matrix.multiply(*properties().getTransformMatrix()); 227 } else { 228 mat4 true3dMat; 229 true3dMat.loadTranslate( 230 properties().getPivotX() + properties().getTranslationX(), 231 properties().getPivotY() + properties().getTranslationY(), 232 properties().getTranslationZ()); 233 true3dMat.rotate(properties().getRotationX(), 1, 0, 0); 234 true3dMat.rotate(properties().getRotationY(), 0, 1, 0); 235 true3dMat.rotate(properties().getRotation(), 0, 0, 1); 236 true3dMat.scale(properties().getScaleX(), properties().getScaleY(), 1); 237 true3dMat.translate(-properties().getPivotX(), -properties().getPivotY()); 238 239 matrix.multiply(true3dMat); 240 } 241 } 242 } 243} 244 245/** 246 * Organizes the DisplayList hierarchy to prepare for background projection reordering. 247 * 248 * This should be called before a call to defer() or drawDisplayList() 249 * 250 * Each DisplayList that serves as a 3d root builds its list of composited children, 251 * which are flagged to not draw in the standard draw loop. 252 */ 253void RenderNode::computeOrdering() { 254 ATRACE_CALL(); 255 mProjectedNodes.clear(); 256 257 // TODO: create temporary DDLOp and call computeOrderingImpl on top DisplayList so that 258 // transform properties are applied correctly to top level children 259 if (mDisplayListData == NULL) return; 260 for (unsigned int i = 0; i < mDisplayListData->children().size(); i++) { 261 DrawDisplayListOp* childOp = mDisplayListData->children()[i]; 262 childOp->mDisplayList->computeOrderingImpl(childOp, 263 properties().getOutline().getPath(), &mProjectedNodes, &mat4::identity()); 264 } 265} 266 267void RenderNode::computeOrderingImpl( 268 DrawDisplayListOp* opState, 269 const SkPath* outlineOfProjectionSurface, 270 Vector<DrawDisplayListOp*>* compositedChildrenOfProjectionSurface, 271 const mat4* transformFromProjectionSurface) { 272 mProjectedNodes.clear(); 273 if (mDisplayListData == NULL || mDisplayListData->isEmpty()) return; 274 275 // TODO: should avoid this calculation in most cases 276 // TODO: just calculate single matrix, down to all leaf composited elements 277 Matrix4 localTransformFromProjectionSurface(*transformFromProjectionSurface); 278 localTransformFromProjectionSurface.multiply(opState->mTransformFromParent); 279 280 if (properties().getProjectBackwards()) { 281 // composited projectee, flag for out of order draw, save matrix, and store in proj surface 282 opState->mSkipInOrderDraw = true; 283 opState->mTransformFromCompositingAncestor.load(localTransformFromProjectionSurface); 284 compositedChildrenOfProjectionSurface->add(opState); 285 } else { 286 // standard in order draw 287 opState->mSkipInOrderDraw = false; 288 } 289 290 if (mDisplayListData->children().size() > 0) { 291 const bool isProjectionReceiver = mDisplayListData->projectionReceiveIndex >= 0; 292 bool haveAppliedPropertiesToProjection = false; 293 for (unsigned int i = 0; i < mDisplayListData->children().size(); i++) { 294 DrawDisplayListOp* childOp = mDisplayListData->children()[i]; 295 RenderNode* child = childOp->mDisplayList; 296 297 const SkPath* projectionOutline = NULL; 298 Vector<DrawDisplayListOp*>* projectionChildren = NULL; 299 const mat4* projectionTransform = NULL; 300 if (isProjectionReceiver && !child->properties().getProjectBackwards()) { 301 // if receiving projections, collect projecting descendent 302 303 // Note that if a direct descendent is projecting backwards, we pass it's 304 // grandparent projection collection, since it shouldn't project onto it's 305 // parent, where it will already be drawing. 306 projectionOutline = properties().getOutline().getPath(); 307 projectionChildren = &mProjectedNodes; 308 projectionTransform = &mat4::identity(); 309 } else { 310 if (!haveAppliedPropertiesToProjection) { 311 applyViewPropertyTransforms(localTransformFromProjectionSurface); 312 haveAppliedPropertiesToProjection = true; 313 } 314 projectionOutline = outlineOfProjectionSurface; 315 projectionChildren = compositedChildrenOfProjectionSurface; 316 projectionTransform = &localTransformFromProjectionSurface; 317 } 318 child->computeOrderingImpl(childOp, 319 projectionOutline, projectionChildren, projectionTransform); 320 } 321 } 322} 323 324class DeferOperationHandler { 325public: 326 DeferOperationHandler(DeferStateStruct& deferStruct, int level) 327 : mDeferStruct(deferStruct), mLevel(level) {} 328 inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) { 329 operation->defer(mDeferStruct, saveCount, mLevel, clipToBounds); 330 } 331 inline LinearAllocator& allocator() { return *(mDeferStruct.mAllocator); } 332 inline void startMark(const char* name) {} // do nothing 333 inline void endMark() {} 334 inline int level() { return mLevel; } 335 inline int replayFlags() { return mDeferStruct.mReplayFlags; } 336 337private: 338 DeferStateStruct& mDeferStruct; 339 const int mLevel; 340}; 341 342void RenderNode::deferNodeTree(DeferStateStruct& deferStruct) { 343 DeferOperationHandler handler(deferStruct, 0); 344 if (properties().getTranslationZ() > 0.0f) issueDrawShadowOperation(Matrix4::identity(), handler); 345 issueOperations<DeferOperationHandler>(deferStruct.mRenderer, handler); 346} 347 348void RenderNode::deferNodeInParent(DeferStateStruct& deferStruct, const int level) { 349 DeferOperationHandler handler(deferStruct, level); 350 issueOperations<DeferOperationHandler>(deferStruct.mRenderer, handler); 351} 352 353class ReplayOperationHandler { 354public: 355 ReplayOperationHandler(ReplayStateStruct& replayStruct, int level) 356 : mReplayStruct(replayStruct), mLevel(level) {} 357 inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) { 358#if DEBUG_DISPLAY_LIST_OPS_AS_EVENTS 359 mReplayStruct.mRenderer.eventMark(operation->name()); 360#endif 361 operation->replay(mReplayStruct, saveCount, mLevel, clipToBounds); 362 } 363 inline LinearAllocator& allocator() { return *(mReplayStruct.mAllocator); } 364 inline void startMark(const char* name) { 365 mReplayStruct.mRenderer.startMark(name); 366 } 367 inline void endMark() { 368 mReplayStruct.mRenderer.endMark(); 369 } 370 inline int level() { return mLevel; } 371 inline int replayFlags() { return mReplayStruct.mReplayFlags; } 372 373private: 374 ReplayStateStruct& mReplayStruct; 375 const int mLevel; 376}; 377 378void RenderNode::replayNodeTree(ReplayStateStruct& replayStruct) { 379 ReplayOperationHandler handler(replayStruct, 0); 380 if (properties().getTranslationZ() > 0.0f) issueDrawShadowOperation(Matrix4::identity(), handler); 381 issueOperations<ReplayOperationHandler>(replayStruct.mRenderer, handler); 382} 383 384void RenderNode::replayNodeInParent(ReplayStateStruct& replayStruct, const int level) { 385 ReplayOperationHandler handler(replayStruct, level); 386 issueOperations<ReplayOperationHandler>(replayStruct.mRenderer, handler); 387} 388 389void RenderNode::buildZSortedChildList(Vector<ZDrawDisplayListOpPair>& zTranslatedNodes) { 390 if (mDisplayListData == NULL || mDisplayListData->children().size() == 0) return; 391 392 for (unsigned int i = 0; i < mDisplayListData->children().size(); i++) { 393 DrawDisplayListOp* childOp = mDisplayListData->children()[i]; 394 RenderNode* child = childOp->mDisplayList; 395 float childZ = child->properties().getTranslationZ(); 396 397 if (childZ != 0.0f) { 398 zTranslatedNodes.add(ZDrawDisplayListOpPair(childZ, childOp)); 399 childOp->mSkipInOrderDraw = true; 400 } else if (!child->properties().getProjectBackwards()) { 401 // regular, in order drawing DisplayList 402 childOp->mSkipInOrderDraw = false; 403 } 404 } 405 406 // Z sort 3d children (stable-ness makes z compare fall back to standard drawing order) 407 std::stable_sort(zTranslatedNodes.begin(), zTranslatedNodes.end()); 408} 409 410template <class T> 411void RenderNode::issueDrawShadowOperation(const Matrix4& transformFromParent, T& handler) { 412 if (properties().getAlpha() <= 0.0f) return; 413 414 mat4 shadowMatrixXY(transformFromParent); 415 applyViewPropertyTransforms(shadowMatrixXY); 416 417 // Z matrix needs actual 3d transformation, so mapped z values will be correct 418 mat4 shadowMatrixZ(transformFromParent); 419 applyViewPropertyTransforms(shadowMatrixZ, true); 420 421 const SkPath* outlinePath = properties().getOutline().getPath(); 422 const RevealClip& revealClip = properties().getRevealClip(); 423 const SkPath* revealClipPath = revealClip.hasConvexClip() 424 ? revealClip.getPath() : NULL; // only pass the reveal clip's path if it's convex 425 426 /** 427 * The drawing area of the caster is always the same as the its perimeter (which 428 * the shadow system uses) *except* in the inverse clip case. Inform the shadow 429 * system that the caster's drawing area (as opposed to its perimeter) has been 430 * clipped, so that it knows the caster can't be opaque. 431 */ 432 bool casterUnclipped = !revealClip.willClip() || revealClip.hasConvexClip(); 433 434 DisplayListOp* shadowOp = new (handler.allocator()) DrawShadowOp( 435 shadowMatrixXY, shadowMatrixZ, 436 properties().getAlpha(), casterUnclipped, 437 properties().getWidth(), properties().getHeight(), 438 outlinePath, revealClipPath); 439 handler(shadowOp, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 440} 441 442#define SHADOW_DELTA 0.1f 443 444template <class T> 445void RenderNode::issueOperationsOf3dChildren(const Vector<ZDrawDisplayListOpPair>& zTranslatedNodes, 446 ChildrenSelectMode mode, OpenGLRenderer& renderer, T& handler) { 447 const int size = zTranslatedNodes.size(); 448 if (size == 0 449 || (mode == kNegativeZChildren && zTranslatedNodes[0].key > 0.0f) 450 || (mode == kPositiveZChildren && zTranslatedNodes[size - 1].key < 0.0f)) { 451 // no 3d children to draw 452 return; 453 } 454 455 /** 456 * Draw shadows and (potential) casters mostly in order, but allow the shadows of casters 457 * with very similar Z heights to draw together. 458 * 459 * This way, if Views A & B have the same Z height and are both casting shadows, the shadows are 460 * underneath both, and neither's shadow is drawn on top of the other. 461 */ 462 const size_t nonNegativeIndex = findNonNegativeIndex(zTranslatedNodes); 463 size_t drawIndex, shadowIndex, endIndex; 464 if (mode == kNegativeZChildren) { 465 drawIndex = 0; 466 endIndex = nonNegativeIndex; 467 shadowIndex = endIndex; // draw no shadows 468 } else { 469 drawIndex = nonNegativeIndex; 470 endIndex = size; 471 shadowIndex = drawIndex; // potentially draw shadow for each pos Z child 472 } 473 474 DISPLAY_LIST_LOGD("%*s%d %s 3d children:", (handler.level() + 1) * 2, "", 475 endIndex - drawIndex, mode == kNegativeZChildren ? "negative" : "positive"); 476 477 float lastCasterZ = 0.0f; 478 while (shadowIndex < endIndex || drawIndex < endIndex) { 479 if (shadowIndex < endIndex) { 480 DrawDisplayListOp* casterOp = zTranslatedNodes[shadowIndex].value; 481 RenderNode* caster = casterOp->mDisplayList; 482 const float casterZ = zTranslatedNodes[shadowIndex].key; 483 // attempt to render the shadow if the caster about to be drawn is its caster, 484 // OR if its caster's Z value is similar to the previous potential caster 485 if (shadowIndex == drawIndex || casterZ - lastCasterZ < SHADOW_DELTA) { 486 caster->issueDrawShadowOperation(casterOp->mTransformFromParent, handler); 487 488 lastCasterZ = casterZ; // must do this even if current caster not casting a shadow 489 shadowIndex++; 490 continue; 491 } 492 } 493 494 // only the actual child DL draw needs to be in save/restore, 495 // since it modifies the renderer's matrix 496 int restoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 497 498 DrawDisplayListOp* childOp = zTranslatedNodes[drawIndex].value; 499 RenderNode* child = childOp->mDisplayList; 500 501 renderer.concatMatrix(childOp->mTransformFromParent); 502 childOp->mSkipInOrderDraw = false; // this is horrible, I'm so sorry everyone 503 handler(childOp, renderer.getSaveCount() - 1, properties().getClipToBounds()); 504 childOp->mSkipInOrderDraw = true; 505 506 renderer.restoreToCount(restoreTo); 507 drawIndex++; 508 } 509} 510 511template <class T> 512void RenderNode::issueOperationsOfProjectedChildren(OpenGLRenderer& renderer, T& handler) { 513 DISPLAY_LIST_LOGD("%*s%d projected children:", (handler.level() + 1) * 2, "", mProjectedNodes.size()); 514 const SkPath* projectionReceiverOutline = properties().getOutline().getPath(); 515 bool maskProjecteesWithPath = projectionReceiverOutline != NULL 516 && !projectionReceiverOutline->isRect(NULL); 517 int restoreTo = renderer.getSaveCount(); 518 519 // If the projection reciever has an outline, we mask each of the projected rendernodes to it 520 // Either with clipRect, or special saveLayer masking 521 LinearAllocator& alloc = handler.allocator(); 522 if (projectionReceiverOutline != NULL) { 523 const SkRect& outlineBounds = projectionReceiverOutline->getBounds(); 524 if (projectionReceiverOutline->isRect(NULL)) { 525 // mask to the rect outline simply with clipRect 526 handler(new (alloc) SaveOp(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag), 527 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 528 ClipRectOp* clipOp = new (alloc) ClipRectOp( 529 outlineBounds.left(), outlineBounds.top(), 530 outlineBounds.right(), outlineBounds.bottom(), SkRegion::kIntersect_Op); 531 handler(clipOp, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 532 } else { 533 // wrap the projected RenderNodes with a SaveLayer that will mask to the outline 534 SaveLayerOp* op = new (alloc) SaveLayerOp( 535 outlineBounds.left(), outlineBounds.top(), 536 outlineBounds.right(), outlineBounds.bottom(), 537 255, SkCanvas::kARGB_ClipLayer_SaveFlag); 538 op->setMask(projectionReceiverOutline); 539 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 540 541 /* TODO: add optimizations here to take advantage of placement/size of projected 542 * children (which may shrink saveLayer area significantly). This is dependent on 543 * passing actual drawing/dirtying bounds of projected content down to native. 544 */ 545 } 546 } 547 548 // draw projected nodes 549 for (size_t i = 0; i < mProjectedNodes.size(); i++) { 550 DrawDisplayListOp* childOp = mProjectedNodes[i]; 551 552 // matrix save, concat, and restore can be done safely without allocating operations 553 int restoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 554 renderer.concatMatrix(childOp->mTransformFromCompositingAncestor); 555 childOp->mSkipInOrderDraw = false; // this is horrible, I'm so sorry everyone 556 handler(childOp, renderer.getSaveCount() - 1, properties().getClipToBounds()); 557 childOp->mSkipInOrderDraw = true; 558 renderer.restoreToCount(restoreTo); 559 } 560 561 if (projectionReceiverOutline != NULL) { 562 handler(new (alloc) RestoreToCountOp(restoreTo), 563 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 564 } 565} 566 567/** 568 * This function serves both defer and replay modes, and will organize the displayList's component 569 * operations for a single frame: 570 * 571 * Every 'simple' state operation that affects just the matrix and alpha (or other factors of 572 * DeferredDisplayState) may be issued directly to the renderer, but complex operations (with custom 573 * defer logic) and operations in displayListOps are issued through the 'handler' which handles the 574 * defer vs replay logic, per operation 575 */ 576template <class T> 577void RenderNode::issueOperations(OpenGLRenderer& renderer, T& handler) { 578 const int level = handler.level(); 579 if (mDisplayListData->isEmpty() || properties().getAlpha() <= 0) { 580 DISPLAY_LIST_LOGD("%*sEmpty display list (%p, %s)", level * 2, "", this, getName()); 581 return; 582 } 583 584 handler.startMark(getName()); 585 586#if DEBUG_DISPLAY_LIST 587 const Rect& clipRect = renderer.getLocalClipBounds(); 588 DISPLAY_LIST_LOGD("%*sStart display list (%p, %s), localClipBounds: %.0f, %.0f, %.0f, %.0f", 589 level * 2, "", this, getName(), 590 clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); 591#endif 592 593 LinearAllocator& alloc = handler.allocator(); 594 int restoreTo = renderer.getSaveCount(); 595 handler(new (alloc) SaveOp(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag), 596 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 597 598 DISPLAY_LIST_LOGD("%*sSave %d %d", (level + 1) * 2, "", 599 SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag, restoreTo); 600 601 setViewProperties<T>(renderer, handler); 602 603 bool quickRejected = properties().getClipToBounds() 604 && renderer.quickRejectConservative(0, 0, properties().getWidth(), properties().getHeight()); 605 if (!quickRejected) { 606 Vector<ZDrawDisplayListOpPair> zTranslatedNodes; 607 buildZSortedChildList(zTranslatedNodes); 608 609 // for 3d root, draw children with negative z values 610 issueOperationsOf3dChildren(zTranslatedNodes, kNegativeZChildren, renderer, handler); 611 612 DisplayListLogBuffer& logBuffer = DisplayListLogBuffer::getInstance(); 613 const int saveCountOffset = renderer.getSaveCount() - 1; 614 const int projectionReceiveIndex = mDisplayListData->projectionReceiveIndex; 615 for (unsigned int i = 0; i < mDisplayListData->displayListOps.size(); i++) { 616 DisplayListOp *op = mDisplayListData->displayListOps[i]; 617 618#if DEBUG_DISPLAY_LIST 619 op->output(level + 1); 620#endif 621 logBuffer.writeCommand(level, op->name()); 622 handler(op, saveCountOffset, properties().getClipToBounds()); 623 624 if (CC_UNLIKELY(i == projectionReceiveIndex && mProjectedNodes.size() > 0)) { 625 issueOperationsOfProjectedChildren(renderer, handler); 626 } 627 } 628 629 // for 3d root, draw children with positive z values 630 issueOperationsOf3dChildren(zTranslatedNodes, kPositiveZChildren, renderer, handler); 631 } 632 633 DISPLAY_LIST_LOGD("%*sRestoreToCount %d", (level + 1) * 2, "", restoreTo); 634 handler(new (alloc) RestoreToCountOp(restoreTo), 635 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 636 renderer.setOverrideLayerAlpha(1.0f); 637 638 DISPLAY_LIST_LOGD("%*sDone (%p, %s)", level * 2, "", this, getName()); 639 handler.endMark(); 640} 641 642} /* namespace uirenderer */ 643} /* namespace android */ 644