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 29 #include "DamageAccumulator.h" 30 #include "Debug.h" 31 #include "DisplayListOp.h" 32 #include "DisplayListLogBuffer.h" 33 #include "LayerRenderer.h" 34 #include "OpenGLRenderer.h" 35 #include "utils/MathUtils.h" 36 #include "utils/TraceUtils.h" 37 #include "renderthread/CanvasContext.h" 38 39 namespace android { 40 namespace uirenderer { 41 42 void RenderNode::outputLogBuffer(int fd) { 43 DisplayListLogBuffer& logBuffer = DisplayListLogBuffer::getInstance(); 44 if (logBuffer.isEmpty()) { 45 return; 46 } 47 48 FILE *file = fdopen(fd, "a"); 49 50 fprintf(file, "\nRecent DisplayList operations\n"); 51 logBuffer.outputCommands(file); 52 53 if (Caches::hasInstance()) { 54 String8 cachesLog; 55 Caches::getInstance().dumpMemoryUsage(cachesLog); 56 fprintf(file, "\nCaches:\n%s\n", cachesLog.string()); 57 } else { 58 fprintf(file, "\nNo caches instance.\n"); 59 } 60 61 fflush(file); 62 } 63 64 void RenderNode::debugDumpLayers(const char* prefix) { 65 if (mLayer) { 66 ALOGD("%sNode %p (%s) has layer %p (fbo = %u, wasBuildLayered = %s)", 67 prefix, this, getName(), mLayer, mLayer->getFbo(), 68 mLayer->wasBuildLayered ? "true" : "false"); 69 } 70 if (mDisplayListData) { 71 for (size_t i = 0; i < mDisplayListData->children().size(); i++) { 72 mDisplayListData->children()[i]->mRenderNode->debugDumpLayers(prefix); 73 } 74 } 75 } 76 77 RenderNode::RenderNode() 78 : mDirtyPropertyFields(0) 79 , mNeedsDisplayListDataSync(false) 80 , mDisplayListData(0) 81 , mStagingDisplayListData(0) 82 , mAnimatorManager(*this) 83 , mLayer(0) 84 , mParentCount(0) { 85 } 86 87 RenderNode::~RenderNode() { 88 deleteDisplayListData(); 89 delete mStagingDisplayListData; 90 if (mLayer) { 91 ALOGW("Memory Warning: Layer %p missed its detachment, held on to for far too long!", mLayer); 92 mLayer->postDecStrong(); 93 mLayer = 0; 94 } 95 } 96 97 void RenderNode::setStagingDisplayList(DisplayListData* data) { 98 mNeedsDisplayListDataSync = true; 99 delete mStagingDisplayListData; 100 mStagingDisplayListData = data; 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 */ 107 void RenderNode::output(uint32_t level) { 108 ALOGD("%*sStart display list (%p, %s%s%s%s)", (level - 1) * 2, "", this, 109 getName(), 110 (properties().hasShadow() ? ", casting shadow" : ""), 111 (isRenderable() ? "" : ", empty"), 112 (mLayer != NULL ? ", on HW Layer" : "")); 113 ALOGD("%*s%s %d", level * 2, "", "Save", 114 SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 115 116 properties().debugOutputProperties(level); 117 int flags = DisplayListOp::kOpLogFlag_Recurse; 118 if (mDisplayListData) { 119 // TODO: consider printing the chunk boundaries here 120 for (unsigned int i = 0; i < mDisplayListData->displayListOps.size(); i++) { 121 mDisplayListData->displayListOps[i]->output(level, flags); 122 } 123 } 124 125 ALOGD("%*sDone (%p, %s)", (level - 1) * 2, "", this, getName()); 126 } 127 128 int RenderNode::getDebugSize() { 129 int size = sizeof(RenderNode); 130 if (mStagingDisplayListData) { 131 size += mStagingDisplayListData->getUsedSize(); 132 } 133 if (mDisplayListData && mDisplayListData != mStagingDisplayListData) { 134 size += mDisplayListData->getUsedSize(); 135 } 136 return size; 137 } 138 139 void RenderNode::prepareTree(TreeInfo& info) { 140 ATRACE_CALL(); 141 LOG_ALWAYS_FATAL_IF(!info.damageAccumulator, "DamageAccumulator missing"); 142 143 prepareTreeImpl(info); 144 } 145 146 void RenderNode::addAnimator(const sp<BaseRenderNodeAnimator>& animator) { 147 mAnimatorManager.addAnimator(animator); 148 } 149 150 void RenderNode::damageSelf(TreeInfo& info) { 151 if (isRenderable()) { 152 if (properties().getClipDamageToBounds()) { 153 info.damageAccumulator->dirty(0, 0, properties().getWidth(), properties().getHeight()); 154 } else { 155 // Hope this is big enough? 156 // TODO: Get this from the display list ops or something 157 info.damageAccumulator->dirty(INT_MIN, INT_MIN, INT_MAX, INT_MAX); 158 } 159 } 160 } 161 162 void RenderNode::prepareLayer(TreeInfo& info, uint32_t dirtyMask) { 163 LayerType layerType = properties().layerProperties().type(); 164 if (CC_UNLIKELY(layerType == kLayerTypeRenderLayer)) { 165 // Damage applied so far needs to affect our parent, but does not require 166 // the layer to be updated. So we pop/push here to clear out the current 167 // damage and get a clean state for display list or children updates to 168 // affect, which will require the layer to be updated 169 info.damageAccumulator->popTransform(); 170 info.damageAccumulator->pushTransform(this); 171 if (dirtyMask & DISPLAY_LIST) { 172 damageSelf(info); 173 } 174 } 175 } 176 177 void RenderNode::pushLayerUpdate(TreeInfo& info) { 178 LayerType layerType = properties().layerProperties().type(); 179 // If we are not a layer OR we cannot be rendered (eg, view was detached) 180 // we need to destroy any Layers we may have had previously 181 if (CC_LIKELY(layerType != kLayerTypeRenderLayer) || CC_UNLIKELY(!isRenderable())) { 182 if (CC_UNLIKELY(mLayer)) { 183 LayerRenderer::destroyLayer(mLayer); 184 mLayer = NULL; 185 } 186 return; 187 } 188 189 bool transformUpdateNeeded = false; 190 if (!mLayer) { 191 mLayer = LayerRenderer::createRenderLayer(info.renderState, getWidth(), getHeight()); 192 applyLayerPropertiesToLayer(info); 193 damageSelf(info); 194 transformUpdateNeeded = true; 195 } else if (mLayer->layer.getWidth() != getWidth() || mLayer->layer.getHeight() != getHeight()) { 196 if (!LayerRenderer::resizeLayer(mLayer, getWidth(), getHeight())) { 197 LayerRenderer::destroyLayer(mLayer); 198 mLayer = 0; 199 } 200 damageSelf(info); 201 transformUpdateNeeded = true; 202 } 203 204 SkRect dirty; 205 info.damageAccumulator->peekAtDirty(&dirty); 206 207 if (!mLayer) { 208 Caches::getInstance().dumpMemoryUsage(); 209 if (info.errorHandler) { 210 std::string msg = "Unable to create layer for "; 211 msg += getName(); 212 info.errorHandler->onError(msg); 213 } 214 return; 215 } 216 217 if (transformUpdateNeeded) { 218 // update the transform in window of the layer to reset its origin wrt light source position 219 Matrix4 windowTransform; 220 info.damageAccumulator->computeCurrentTransform(&windowTransform); 221 mLayer->setWindowTransform(windowTransform); 222 } 223 224 if (dirty.intersect(0, 0, getWidth(), getHeight())) { 225 dirty.roundOut(); 226 mLayer->updateDeferred(this, dirty.fLeft, dirty.fTop, dirty.fRight, dirty.fBottom); 227 } 228 // This is not inside the above if because we may have called 229 // updateDeferred on a previous prepare pass that didn't have a renderer 230 if (info.renderer && mLayer->deferredUpdateScheduled) { 231 info.renderer->pushLayerUpdate(mLayer); 232 } 233 234 if (CC_UNLIKELY(info.canvasContext)) { 235 // If canvasContext is not null that means there are prefetched layers 236 // that need to be accounted for. That might be us, so tell CanvasContext 237 // that this layer is in the tree and should not be destroyed. 238 info.canvasContext->markLayerInUse(this); 239 } 240 } 241 242 void RenderNode::prepareTreeImpl(TreeInfo& info) { 243 info.damageAccumulator->pushTransform(this); 244 245 if (info.mode == TreeInfo::MODE_FULL) { 246 pushStagingPropertiesChanges(info); 247 } 248 uint32_t animatorDirtyMask = 0; 249 if (CC_LIKELY(info.runAnimations)) { 250 animatorDirtyMask = mAnimatorManager.animate(info); 251 } 252 prepareLayer(info, animatorDirtyMask); 253 if (info.mode == TreeInfo::MODE_FULL) { 254 pushStagingDisplayListChanges(info); 255 } 256 prepareSubTree(info, mDisplayListData); 257 pushLayerUpdate(info); 258 259 info.damageAccumulator->popTransform(); 260 } 261 262 void RenderNode::pushStagingPropertiesChanges(TreeInfo& info) { 263 // Push the animators first so that setupStartValueIfNecessary() is called 264 // before properties() is trampled by stagingProperties(), as they are 265 // required by some animators. 266 if (CC_LIKELY(info.runAnimations)) { 267 mAnimatorManager.pushStaging(); 268 } 269 if (mDirtyPropertyFields) { 270 mDirtyPropertyFields = 0; 271 damageSelf(info); 272 info.damageAccumulator->popTransform(); 273 mProperties = mStagingProperties; 274 applyLayerPropertiesToLayer(info); 275 // We could try to be clever and only re-damage if the matrix changed. 276 // However, we don't need to worry about that. The cost of over-damaging 277 // here is only going to be a single additional map rect of this node 278 // plus a rect join(). The parent's transform (and up) will only be 279 // performed once. 280 info.damageAccumulator->pushTransform(this); 281 damageSelf(info); 282 } 283 } 284 285 void RenderNode::applyLayerPropertiesToLayer(TreeInfo& info) { 286 if (CC_LIKELY(!mLayer)) return; 287 288 const LayerProperties& props = properties().layerProperties(); 289 mLayer->setAlpha(props.alpha(), props.xferMode()); 290 mLayer->setColorFilter(props.colorFilter()); 291 mLayer->setBlend(props.needsBlending()); 292 } 293 294 void RenderNode::pushStagingDisplayListChanges(TreeInfo& info) { 295 if (mNeedsDisplayListDataSync) { 296 mNeedsDisplayListDataSync = false; 297 // Make sure we inc first so that we don't fluctuate between 0 and 1, 298 // which would thrash the layer cache 299 if (mStagingDisplayListData) { 300 for (size_t i = 0; i < mStagingDisplayListData->children().size(); i++) { 301 mStagingDisplayListData->children()[i]->mRenderNode->incParentRefCount(); 302 } 303 } 304 // Damage with the old display list first then the new one to catch any 305 // changes in isRenderable or, in the future, bounds 306 damageSelf(info); 307 deleteDisplayListData(); 308 // TODO: Remove this caches stuff 309 if (mStagingDisplayListData && mStagingDisplayListData->functors.size()) { 310 Caches::getInstance().registerFunctors(mStagingDisplayListData->functors.size()); 311 } 312 mDisplayListData = mStagingDisplayListData; 313 mStagingDisplayListData = NULL; 314 if (mDisplayListData) { 315 for (size_t i = 0; i < mDisplayListData->functors.size(); i++) { 316 (*mDisplayListData->functors[i])(DrawGlInfo::kModeSync, NULL); 317 } 318 } 319 damageSelf(info); 320 } 321 } 322 323 void RenderNode::deleteDisplayListData() { 324 if (mDisplayListData) { 325 for (size_t i = 0; i < mDisplayListData->children().size(); i++) { 326 mDisplayListData->children()[i]->mRenderNode->decParentRefCount(); 327 } 328 if (mDisplayListData->functors.size()) { 329 Caches::getInstance().unregisterFunctors(mDisplayListData->functors.size()); 330 } 331 } 332 delete mDisplayListData; 333 mDisplayListData = NULL; 334 } 335 336 void RenderNode::prepareSubTree(TreeInfo& info, DisplayListData* subtree) { 337 if (subtree) { 338 TextureCache& cache = Caches::getInstance().textureCache; 339 info.out.hasFunctors |= subtree->functors.size(); 340 // TODO: Fix ownedBitmapResources to not require disabling prepareTextures 341 // and thus falling out of async drawing path. 342 if (subtree->ownedBitmapResources.size()) { 343 info.prepareTextures = false; 344 } 345 for (size_t i = 0; info.prepareTextures && i < subtree->bitmapResources.size(); i++) { 346 info.prepareTextures = cache.prefetchAndMarkInUse(subtree->bitmapResources[i]); 347 } 348 for (size_t i = 0; i < subtree->children().size(); i++) { 349 DrawRenderNodeOp* op = subtree->children()[i]; 350 RenderNode* childNode = op->mRenderNode; 351 info.damageAccumulator->pushTransform(&op->mTransformFromParent); 352 childNode->prepareTreeImpl(info); 353 info.damageAccumulator->popTransform(); 354 } 355 } 356 } 357 358 void RenderNode::destroyHardwareResources() { 359 if (mLayer) { 360 LayerRenderer::destroyLayer(mLayer); 361 mLayer = NULL; 362 } 363 if (mDisplayListData) { 364 for (size_t i = 0; i < mDisplayListData->children().size(); i++) { 365 mDisplayListData->children()[i]->mRenderNode->destroyHardwareResources(); 366 } 367 if (mNeedsDisplayListDataSync) { 368 // Next prepare tree we are going to push a new display list, so we can 369 // drop our current one now 370 deleteDisplayListData(); 371 } 372 } 373 } 374 375 void RenderNode::decParentRefCount() { 376 LOG_ALWAYS_FATAL_IF(!mParentCount, "already 0!"); 377 mParentCount--; 378 if (!mParentCount) { 379 // If a child of ours is being attached to our parent then this will incorrectly 380 // destroy its hardware resources. However, this situation is highly unlikely 381 // and the failure is "just" that the layer is re-created, so this should 382 // be safe enough 383 destroyHardwareResources(); 384 } 385 } 386 387 /* 388 * For property operations, we pass a savecount of 0, since the operations aren't part of the 389 * displaylist, and thus don't have to compensate for the record-time/playback-time discrepancy in 390 * base saveCount (i.e., how RestoreToCount uses saveCount + properties().getCount()) 391 */ 392 #define PROPERTY_SAVECOUNT 0 393 394 template <class T> 395 void RenderNode::setViewProperties(OpenGLRenderer& renderer, T& handler) { 396 #if DEBUG_DISPLAY_LIST 397 properties().debugOutputProperties(handler.level() + 1); 398 #endif 399 if (properties().getLeft() != 0 || properties().getTop() != 0) { 400 renderer.translate(properties().getLeft(), properties().getTop()); 401 } 402 if (properties().getStaticMatrix()) { 403 renderer.concatMatrix(*properties().getStaticMatrix()); 404 } else if (properties().getAnimationMatrix()) { 405 renderer.concatMatrix(*properties().getAnimationMatrix()); 406 } 407 if (properties().hasTransformMatrix()) { 408 if (properties().isTransformTranslateOnly()) { 409 renderer.translate(properties().getTranslationX(), properties().getTranslationY()); 410 } else { 411 renderer.concatMatrix(*properties().getTransformMatrix()); 412 } 413 } 414 const bool isLayer = properties().layerProperties().type() != kLayerTypeNone; 415 int clipFlags = properties().getClippingFlags(); 416 if (properties().getAlpha() < 1) { 417 if (isLayer) { 418 clipFlags &= ~CLIP_TO_BOUNDS; // bounds clipping done by layer 419 420 renderer.setOverrideLayerAlpha(properties().getAlpha()); 421 } else if (!properties().getHasOverlappingRendering()) { 422 renderer.scaleAlpha(properties().getAlpha()); 423 } else { 424 Rect layerBounds(0, 0, getWidth(), getHeight()); 425 int saveFlags = SkCanvas::kHasAlphaLayer_SaveFlag; 426 if (clipFlags) { 427 saveFlags |= SkCanvas::kClipToLayer_SaveFlag; 428 properties().getClippingRectForFlags(clipFlags, &layerBounds); 429 clipFlags = 0; // all clipping done by saveLayer 430 } 431 432 ATRACE_FORMAT("%s alpha caused %ssaveLayer %dx%d", 433 getName(), clipFlags ? "" : "unclipped ", 434 (int)layerBounds.getWidth(), (int)layerBounds.getHeight()); 435 436 SaveLayerOp* op = new (handler.allocator()) SaveLayerOp( 437 layerBounds.left, layerBounds.top, layerBounds.right, layerBounds.bottom, 438 properties().getAlpha() * 255, saveFlags); 439 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 440 } 441 } 442 if (clipFlags) { 443 Rect clipRect; 444 properties().getClippingRectForFlags(clipFlags, &clipRect); 445 ClipRectOp* op = new (handler.allocator()) ClipRectOp( 446 clipRect.left, clipRect.top, clipRect.right, clipRect.bottom, 447 SkRegion::kIntersect_Op); 448 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 449 } 450 451 // TODO: support nesting round rect clips 452 if (mProperties.getRevealClip().willClip()) { 453 Rect bounds; 454 mProperties.getRevealClip().getBounds(&bounds); 455 renderer.setClippingRoundRect(handler.allocator(), bounds, mProperties.getRevealClip().getRadius()); 456 } else if (mProperties.getOutline().willClip()) { 457 renderer.setClippingOutline(handler.allocator(), &(mProperties.getOutline())); 458 } 459 } 460 461 /** 462 * Apply property-based transformations to input matrix 463 * 464 * If true3dTransform is set to true, the transform applied to the input matrix will use true 4x4 465 * matrix computation instead of the Skia 3x3 matrix + camera hackery. 466 */ 467 void RenderNode::applyViewPropertyTransforms(mat4& matrix, bool true3dTransform) const { 468 if (properties().getLeft() != 0 || properties().getTop() != 0) { 469 matrix.translate(properties().getLeft(), properties().getTop()); 470 } 471 if (properties().getStaticMatrix()) { 472 mat4 stat(*properties().getStaticMatrix()); 473 matrix.multiply(stat); 474 } else if (properties().getAnimationMatrix()) { 475 mat4 anim(*properties().getAnimationMatrix()); 476 matrix.multiply(anim); 477 } 478 479 bool applyTranslationZ = true3dTransform && !MathUtils::isZero(properties().getZ()); 480 if (properties().hasTransformMatrix() || applyTranslationZ) { 481 if (properties().isTransformTranslateOnly()) { 482 matrix.translate(properties().getTranslationX(), properties().getTranslationY(), 483 true3dTransform ? properties().getZ() : 0.0f); 484 } else { 485 if (!true3dTransform) { 486 matrix.multiply(*properties().getTransformMatrix()); 487 } else { 488 mat4 true3dMat; 489 true3dMat.loadTranslate( 490 properties().getPivotX() + properties().getTranslationX(), 491 properties().getPivotY() + properties().getTranslationY(), 492 properties().getZ()); 493 true3dMat.rotate(properties().getRotationX(), 1, 0, 0); 494 true3dMat.rotate(properties().getRotationY(), 0, 1, 0); 495 true3dMat.rotate(properties().getRotation(), 0, 0, 1); 496 true3dMat.scale(properties().getScaleX(), properties().getScaleY(), 1); 497 true3dMat.translate(-properties().getPivotX(), -properties().getPivotY()); 498 499 matrix.multiply(true3dMat); 500 } 501 } 502 } 503 } 504 505 /** 506 * Organizes the DisplayList hierarchy to prepare for background projection reordering. 507 * 508 * This should be called before a call to defer() or drawDisplayList() 509 * 510 * Each DisplayList that serves as a 3d root builds its list of composited children, 511 * which are flagged to not draw in the standard draw loop. 512 */ 513 void RenderNode::computeOrdering() { 514 ATRACE_CALL(); 515 mProjectedNodes.clear(); 516 517 // TODO: create temporary DDLOp and call computeOrderingImpl on top DisplayList so that 518 // transform properties are applied correctly to top level children 519 if (mDisplayListData == NULL) return; 520 for (unsigned int i = 0; i < mDisplayListData->children().size(); i++) { 521 DrawRenderNodeOp* childOp = mDisplayListData->children()[i]; 522 childOp->mRenderNode->computeOrderingImpl(childOp, 523 properties().getOutline().getPath(), &mProjectedNodes, &mat4::identity()); 524 } 525 } 526 527 void RenderNode::computeOrderingImpl( 528 DrawRenderNodeOp* opState, 529 const SkPath* outlineOfProjectionSurface, 530 Vector<DrawRenderNodeOp*>* compositedChildrenOfProjectionSurface, 531 const mat4* transformFromProjectionSurface) { 532 mProjectedNodes.clear(); 533 if (mDisplayListData == NULL || mDisplayListData->isEmpty()) return; 534 535 // TODO: should avoid this calculation in most cases 536 // TODO: just calculate single matrix, down to all leaf composited elements 537 Matrix4 localTransformFromProjectionSurface(*transformFromProjectionSurface); 538 localTransformFromProjectionSurface.multiply(opState->mTransformFromParent); 539 540 if (properties().getProjectBackwards()) { 541 // composited projectee, flag for out of order draw, save matrix, and store in proj surface 542 opState->mSkipInOrderDraw = true; 543 opState->mTransformFromCompositingAncestor.load(localTransformFromProjectionSurface); 544 compositedChildrenOfProjectionSurface->add(opState); 545 } else { 546 // standard in order draw 547 opState->mSkipInOrderDraw = false; 548 } 549 550 if (mDisplayListData->children().size() > 0) { 551 const bool isProjectionReceiver = mDisplayListData->projectionReceiveIndex >= 0; 552 bool haveAppliedPropertiesToProjection = false; 553 for (unsigned int i = 0; i < mDisplayListData->children().size(); i++) { 554 DrawRenderNodeOp* childOp = mDisplayListData->children()[i]; 555 RenderNode* child = childOp->mRenderNode; 556 557 const SkPath* projectionOutline = NULL; 558 Vector<DrawRenderNodeOp*>* projectionChildren = NULL; 559 const mat4* projectionTransform = NULL; 560 if (isProjectionReceiver && !child->properties().getProjectBackwards()) { 561 // if receiving projections, collect projecting descendent 562 563 // Note that if a direct descendent is projecting backwards, we pass it's 564 // grandparent projection collection, since it shouldn't project onto it's 565 // parent, where it will already be drawing. 566 projectionOutline = properties().getOutline().getPath(); 567 projectionChildren = &mProjectedNodes; 568 projectionTransform = &mat4::identity(); 569 } else { 570 if (!haveAppliedPropertiesToProjection) { 571 applyViewPropertyTransforms(localTransformFromProjectionSurface); 572 haveAppliedPropertiesToProjection = true; 573 } 574 projectionOutline = outlineOfProjectionSurface; 575 projectionChildren = compositedChildrenOfProjectionSurface; 576 projectionTransform = &localTransformFromProjectionSurface; 577 } 578 child->computeOrderingImpl(childOp, 579 projectionOutline, projectionChildren, projectionTransform); 580 } 581 } 582 } 583 584 class DeferOperationHandler { 585 public: 586 DeferOperationHandler(DeferStateStruct& deferStruct, int level) 587 : mDeferStruct(deferStruct), mLevel(level) {} 588 inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) { 589 operation->defer(mDeferStruct, saveCount, mLevel, clipToBounds); 590 } 591 inline LinearAllocator& allocator() { return *(mDeferStruct.mAllocator); } 592 inline void startMark(const char* name) {} // do nothing 593 inline void endMark() {} 594 inline int level() { return mLevel; } 595 inline int replayFlags() { return mDeferStruct.mReplayFlags; } 596 inline SkPath* allocPathForFrame() { return mDeferStruct.allocPathForFrame(); } 597 598 private: 599 DeferStateStruct& mDeferStruct; 600 const int mLevel; 601 }; 602 603 void RenderNode::defer(DeferStateStruct& deferStruct, const int level) { 604 DeferOperationHandler handler(deferStruct, level); 605 issueOperations<DeferOperationHandler>(deferStruct.mRenderer, handler); 606 } 607 608 class ReplayOperationHandler { 609 public: 610 ReplayOperationHandler(ReplayStateStruct& replayStruct, int level) 611 : mReplayStruct(replayStruct), mLevel(level) {} 612 inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) { 613 #if DEBUG_DISPLAY_LIST_OPS_AS_EVENTS 614 mReplayStruct.mRenderer.eventMark(operation->name()); 615 #endif 616 operation->replay(mReplayStruct, saveCount, mLevel, clipToBounds); 617 } 618 inline LinearAllocator& allocator() { return *(mReplayStruct.mAllocator); } 619 inline void startMark(const char* name) { 620 mReplayStruct.mRenderer.startMark(name); 621 } 622 inline void endMark() { 623 mReplayStruct.mRenderer.endMark(); 624 } 625 inline int level() { return mLevel; } 626 inline int replayFlags() { return mReplayStruct.mReplayFlags; } 627 inline SkPath* allocPathForFrame() { return mReplayStruct.allocPathForFrame(); } 628 629 private: 630 ReplayStateStruct& mReplayStruct; 631 const int mLevel; 632 }; 633 634 void RenderNode::replay(ReplayStateStruct& replayStruct, const int level) { 635 ReplayOperationHandler handler(replayStruct, level); 636 issueOperations<ReplayOperationHandler>(replayStruct.mRenderer, handler); 637 } 638 639 void RenderNode::buildZSortedChildList(const DisplayListData::Chunk& chunk, 640 Vector<ZDrawRenderNodeOpPair>& zTranslatedNodes) { 641 if (chunk.beginChildIndex == chunk.endChildIndex) return; 642 643 for (unsigned int i = chunk.beginChildIndex; i < chunk.endChildIndex; i++) { 644 DrawRenderNodeOp* childOp = mDisplayListData->children()[i]; 645 RenderNode* child = childOp->mRenderNode; 646 float childZ = child->properties().getZ(); 647 648 if (!MathUtils::isZero(childZ) && chunk.reorderChildren) { 649 zTranslatedNodes.add(ZDrawRenderNodeOpPair(childZ, childOp)); 650 childOp->mSkipInOrderDraw = true; 651 } else if (!child->properties().getProjectBackwards()) { 652 // regular, in order drawing DisplayList 653 childOp->mSkipInOrderDraw = false; 654 } 655 } 656 657 // Z sort any 3d children (stable-ness makes z compare fall back to standard drawing order) 658 std::stable_sort(zTranslatedNodes.begin(), zTranslatedNodes.end()); 659 } 660 661 template <class T> 662 void RenderNode::issueDrawShadowOperation(const Matrix4& transformFromParent, T& handler) { 663 if (properties().getAlpha() <= 0.0f 664 || properties().getOutline().getAlpha() <= 0.0f 665 || !properties().getOutline().getPath()) { 666 // no shadow to draw 667 return; 668 } 669 670 mat4 shadowMatrixXY(transformFromParent); 671 applyViewPropertyTransforms(shadowMatrixXY); 672 673 // Z matrix needs actual 3d transformation, so mapped z values will be correct 674 mat4 shadowMatrixZ(transformFromParent); 675 applyViewPropertyTransforms(shadowMatrixZ, true); 676 677 const SkPath* casterOutlinePath = properties().getOutline().getPath(); 678 const SkPath* revealClipPath = properties().getRevealClip().getPath(); 679 if (revealClipPath && revealClipPath->isEmpty()) return; 680 681 float casterAlpha = properties().getAlpha() * properties().getOutline().getAlpha(); 682 683 684 // holds temporary SkPath to store the result of intersections 685 SkPath* frameAllocatedPath = NULL; 686 const SkPath* outlinePath = casterOutlinePath; 687 688 // intersect the outline with the reveal clip, if present 689 if (revealClipPath) { 690 frameAllocatedPath = handler.allocPathForFrame(); 691 692 Op(*outlinePath, *revealClipPath, kIntersect_PathOp, frameAllocatedPath); 693 outlinePath = frameAllocatedPath; 694 } 695 696 // intersect the outline with the clipBounds, if present 697 if (properties().getClippingFlags() & CLIP_TO_CLIP_BOUNDS) { 698 if (!frameAllocatedPath) { 699 frameAllocatedPath = handler.allocPathForFrame(); 700 } 701 702 Rect clipBounds; 703 properties().getClippingRectForFlags(CLIP_TO_CLIP_BOUNDS, &clipBounds); 704 SkPath clipBoundsPath; 705 clipBoundsPath.addRect(clipBounds.left, clipBounds.top, 706 clipBounds.right, clipBounds.bottom); 707 708 Op(*outlinePath, clipBoundsPath, kIntersect_PathOp, frameAllocatedPath); 709 outlinePath = frameAllocatedPath; 710 } 711 712 DisplayListOp* shadowOp = new (handler.allocator()) DrawShadowOp( 713 shadowMatrixXY, shadowMatrixZ, casterAlpha, outlinePath); 714 handler(shadowOp, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 715 } 716 717 #define SHADOW_DELTA 0.1f 718 719 template <class T> 720 void RenderNode::issueOperationsOf3dChildren(ChildrenSelectMode mode, 721 const Matrix4& initialTransform, const Vector<ZDrawRenderNodeOpPair>& zTranslatedNodes, 722 OpenGLRenderer& renderer, T& handler) { 723 const int size = zTranslatedNodes.size(); 724 if (size == 0 725 || (mode == kNegativeZChildren && zTranslatedNodes[0].key > 0.0f) 726 || (mode == kPositiveZChildren && zTranslatedNodes[size - 1].key < 0.0f)) { 727 // no 3d children to draw 728 return; 729 } 730 731 // Apply the base transform of the parent of the 3d children. This isolates 732 // 3d children of the current chunk from transformations made in previous chunks. 733 int rootRestoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 734 renderer.setMatrix(initialTransform); 735 736 /** 737 * Draw shadows and (potential) casters mostly in order, but allow the shadows of casters 738 * with very similar Z heights to draw together. 739 * 740 * This way, if Views A & B have the same Z height and are both casting shadows, the shadows are 741 * underneath both, and neither's shadow is drawn on top of the other. 742 */ 743 const size_t nonNegativeIndex = findNonNegativeIndex(zTranslatedNodes); 744 size_t drawIndex, shadowIndex, endIndex; 745 if (mode == kNegativeZChildren) { 746 drawIndex = 0; 747 endIndex = nonNegativeIndex; 748 shadowIndex = endIndex; // draw no shadows 749 } else { 750 drawIndex = nonNegativeIndex; 751 endIndex = size; 752 shadowIndex = drawIndex; // potentially draw shadow for each pos Z child 753 } 754 755 DISPLAY_LIST_LOGD("%*s%d %s 3d children:", (handler.level() + 1) * 2, "", 756 endIndex - drawIndex, mode == kNegativeZChildren ? "negative" : "positive"); 757 758 float lastCasterZ = 0.0f; 759 while (shadowIndex < endIndex || drawIndex < endIndex) { 760 if (shadowIndex < endIndex) { 761 DrawRenderNodeOp* casterOp = zTranslatedNodes[shadowIndex].value; 762 RenderNode* caster = casterOp->mRenderNode; 763 const float casterZ = zTranslatedNodes[shadowIndex].key; 764 // attempt to render the shadow if the caster about to be drawn is its caster, 765 // OR if its caster's Z value is similar to the previous potential caster 766 if (shadowIndex == drawIndex || casterZ - lastCasterZ < SHADOW_DELTA) { 767 caster->issueDrawShadowOperation(casterOp->mTransformFromParent, handler); 768 769 lastCasterZ = casterZ; // must do this even if current caster not casting a shadow 770 shadowIndex++; 771 continue; 772 } 773 } 774 775 // only the actual child DL draw needs to be in save/restore, 776 // since it modifies the renderer's matrix 777 int restoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 778 779 DrawRenderNodeOp* childOp = zTranslatedNodes[drawIndex].value; 780 RenderNode* child = childOp->mRenderNode; 781 782 renderer.concatMatrix(childOp->mTransformFromParent); 783 childOp->mSkipInOrderDraw = false; // this is horrible, I'm so sorry everyone 784 handler(childOp, renderer.getSaveCount() - 1, properties().getClipToBounds()); 785 childOp->mSkipInOrderDraw = true; 786 787 renderer.restoreToCount(restoreTo); 788 drawIndex++; 789 } 790 renderer.restoreToCount(rootRestoreTo); 791 } 792 793 template <class T> 794 void RenderNode::issueOperationsOfProjectedChildren(OpenGLRenderer& renderer, T& handler) { 795 DISPLAY_LIST_LOGD("%*s%d projected children:", (handler.level() + 1) * 2, "", mProjectedNodes.size()); 796 const SkPath* projectionReceiverOutline = properties().getOutline().getPath(); 797 int restoreTo = renderer.getSaveCount(); 798 799 LinearAllocator& alloc = handler.allocator(); 800 handler(new (alloc) SaveOp(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag), 801 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 802 803 // Transform renderer to match background we're projecting onto 804 // (by offsetting canvas by translationX/Y of background rendernode, since only those are set) 805 const DisplayListOp* op = 806 (mDisplayListData->displayListOps[mDisplayListData->projectionReceiveIndex]); 807 const DrawRenderNodeOp* backgroundOp = reinterpret_cast<const DrawRenderNodeOp*>(op); 808 const RenderProperties& backgroundProps = backgroundOp->mRenderNode->properties(); 809 renderer.translate(backgroundProps.getTranslationX(), backgroundProps.getTranslationY()); 810 811 // If the projection reciever has an outline, we mask each of the projected rendernodes to it 812 // Either with clipRect, or special saveLayer masking 813 if (projectionReceiverOutline != NULL) { 814 const SkRect& outlineBounds = projectionReceiverOutline->getBounds(); 815 if (projectionReceiverOutline->isRect(NULL)) { 816 // mask to the rect outline simply with clipRect 817 ClipRectOp* clipOp = new (alloc) ClipRectOp( 818 outlineBounds.left(), outlineBounds.top(), 819 outlineBounds.right(), outlineBounds.bottom(), SkRegion::kIntersect_Op); 820 handler(clipOp, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 821 } else { 822 // wrap the projected RenderNodes with a SaveLayer that will mask to the outline 823 SaveLayerOp* op = new (alloc) SaveLayerOp( 824 outlineBounds.left(), outlineBounds.top(), 825 outlineBounds.right(), outlineBounds.bottom(), 826 255, SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag | SkCanvas::kARGB_ClipLayer_SaveFlag); 827 op->setMask(projectionReceiverOutline); 828 handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds()); 829 830 /* TODO: add optimizations here to take advantage of placement/size of projected 831 * children (which may shrink saveLayer area significantly). This is dependent on 832 * passing actual drawing/dirtying bounds of projected content down to native. 833 */ 834 } 835 } 836 837 // draw projected nodes 838 for (size_t i = 0; i < mProjectedNodes.size(); i++) { 839 DrawRenderNodeOp* childOp = mProjectedNodes[i]; 840 841 // matrix save, concat, and restore can be done safely without allocating operations 842 int restoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag); 843 renderer.concatMatrix(childOp->mTransformFromCompositingAncestor); 844 childOp->mSkipInOrderDraw = false; // this is horrible, I'm so sorry everyone 845 handler(childOp, renderer.getSaveCount() - 1, properties().getClipToBounds()); 846 childOp->mSkipInOrderDraw = true; 847 renderer.restoreToCount(restoreTo); 848 } 849 850 if (projectionReceiverOutline != NULL) { 851 handler(new (alloc) RestoreToCountOp(restoreTo), 852 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 853 } 854 } 855 856 /** 857 * This function serves both defer and replay modes, and will organize the displayList's component 858 * operations for a single frame: 859 * 860 * Every 'simple' state operation that affects just the matrix and alpha (or other factors of 861 * DeferredDisplayState) may be issued directly to the renderer, but complex operations (with custom 862 * defer logic) and operations in displayListOps are issued through the 'handler' which handles the 863 * defer vs replay logic, per operation 864 */ 865 template <class T> 866 void RenderNode::issueOperations(OpenGLRenderer& renderer, T& handler) { 867 const int level = handler.level(); 868 if (mDisplayListData->isEmpty()) { 869 DISPLAY_LIST_LOGD("%*sEmpty display list (%p, %s)", level * 2, "", this, getName()); 870 return; 871 } 872 873 const bool drawLayer = (mLayer && (&renderer != mLayer->renderer)); 874 // If we are updating the contents of mLayer, we don't want to apply any of 875 // the RenderNode's properties to this issueOperations pass. Those will all 876 // be applied when the layer is drawn, aka when this is true. 877 const bool useViewProperties = (!mLayer || drawLayer); 878 if (useViewProperties) { 879 const Outline& outline = properties().getOutline(); 880 if (properties().getAlpha() <= 0 || (outline.getShouldClip() && outline.isEmpty())) { 881 DISPLAY_LIST_LOGD("%*sRejected display list (%p, %s)", level * 2, "", this, getName()); 882 return; 883 } 884 } 885 886 handler.startMark(getName()); 887 888 #if DEBUG_DISPLAY_LIST 889 const Rect& clipRect = renderer.getLocalClipBounds(); 890 DISPLAY_LIST_LOGD("%*sStart display list (%p, %s), localClipBounds: %.0f, %.0f, %.0f, %.0f", 891 level * 2, "", this, getName(), 892 clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); 893 #endif 894 895 LinearAllocator& alloc = handler.allocator(); 896 int restoreTo = renderer.getSaveCount(); 897 handler(new (alloc) SaveOp(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag), 898 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 899 900 DISPLAY_LIST_LOGD("%*sSave %d %d", (level + 1) * 2, "", 901 SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag, restoreTo); 902 903 if (useViewProperties) { 904 setViewProperties<T>(renderer, handler); 905 } 906 907 bool quickRejected = properties().getClipToBounds() 908 && renderer.quickRejectConservative(0, 0, properties().getWidth(), properties().getHeight()); 909 if (!quickRejected) { 910 Matrix4 initialTransform(*(renderer.currentTransform())); 911 912 if (drawLayer) { 913 handler(new (alloc) DrawLayerOp(mLayer, 0, 0), 914 renderer.getSaveCount() - 1, properties().getClipToBounds()); 915 } else { 916 const int saveCountOffset = renderer.getSaveCount() - 1; 917 const int projectionReceiveIndex = mDisplayListData->projectionReceiveIndex; 918 DisplayListLogBuffer& logBuffer = DisplayListLogBuffer::getInstance(); 919 for (size_t chunkIndex = 0; chunkIndex < mDisplayListData->getChunks().size(); chunkIndex++) { 920 const DisplayListData::Chunk& chunk = mDisplayListData->getChunks()[chunkIndex]; 921 922 Vector<ZDrawRenderNodeOpPair> zTranslatedNodes; 923 buildZSortedChildList(chunk, zTranslatedNodes); 924 925 issueOperationsOf3dChildren(kNegativeZChildren, 926 initialTransform, zTranslatedNodes, renderer, handler); 927 928 929 for (int opIndex = chunk.beginOpIndex; opIndex < chunk.endOpIndex; opIndex++) { 930 DisplayListOp *op = mDisplayListData->displayListOps[opIndex]; 931 #if DEBUG_DISPLAY_LIST 932 op->output(level + 1); 933 #endif 934 logBuffer.writeCommand(level, op->name()); 935 handler(op, saveCountOffset, properties().getClipToBounds()); 936 937 if (CC_UNLIKELY(!mProjectedNodes.isEmpty() && opIndex == projectionReceiveIndex)) { 938 issueOperationsOfProjectedChildren(renderer, handler); 939 } 940 } 941 942 issueOperationsOf3dChildren(kPositiveZChildren, 943 initialTransform, zTranslatedNodes, renderer, handler); 944 } 945 } 946 } 947 948 DISPLAY_LIST_LOGD("%*sRestoreToCount %d", (level + 1) * 2, "", restoreTo); 949 handler(new (alloc) RestoreToCountOp(restoreTo), 950 PROPERTY_SAVECOUNT, properties().getClipToBounds()); 951 renderer.setOverrideLayerAlpha(1.0f); 952 953 DISPLAY_LIST_LOGD("%*sDone (%p, %s)", level * 2, "", this, getName()); 954 handler.endMark(); 955 } 956 957 } /* namespace uirenderer */ 958 } /* namespace android */ 959
