FrameBuilder.cpp revision 49658d43802dc74c0ad68b7f5ba509832c1dec81
1/* 2 * Copyright (C) 2016 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#include "FrameBuilder.h" 18 19#include "LayerUpdateQueue.h" 20#include "RenderNode.h" 21#include "VectorDrawable.h" 22#include "renderstate/OffscreenBufferPool.h" 23#include "hwui/Canvas.h" 24#include "utils/FatVector.h" 25#include "utils/PaintUtils.h" 26#include "utils/TraceUtils.h" 27 28#include <SkPathOps.h> 29#include <utils/TypeHelpers.h> 30 31namespace android { 32namespace uirenderer { 33 34FrameBuilder::FrameBuilder(const LayerUpdateQueue& layers, const SkRect& clip, 35 uint32_t viewportWidth, uint32_t viewportHeight, 36 const std::vector< sp<RenderNode> >& nodes, 37 const LightGeometry& lightGeometry, const Rect &contentDrawBounds, Caches* caches) 38 : mCanvasState(*this) 39 , mCaches(caches) 40 , mLightRadius(lightGeometry.radius) { 41 ATRACE_NAME("prepare drawing commands"); 42 43 mLayerBuilders.reserve(layers.entries().size()); 44 mLayerStack.reserve(layers.entries().size()); 45 46 // Prepare to defer Fbo0 47 auto fbo0 = mAllocator.create<LayerBuilder>(viewportWidth, viewportHeight, Rect(clip)); 48 mLayerBuilders.push_back(fbo0); 49 mLayerStack.push_back(0); 50 mCanvasState.initializeSaveStack(viewportWidth, viewportHeight, 51 clip.fLeft, clip.fTop, clip.fRight, clip.fBottom, 52 lightGeometry.center); 53 54 // Render all layers to be updated, in order. Defer in reverse order, so that they'll be 55 // updated in the order they're passed in (mLayerBuilders are issued to Renderer in reverse) 56 for (int i = layers.entries().size() - 1; i >= 0; i--) { 57 RenderNode* layerNode = layers.entries()[i].renderNode; 58 // only schedule repaint if node still on layer - possible it may have been 59 // removed during a dropped frame, but layers may still remain scheduled so 60 // as not to lose info on what portion is damaged 61 if (CC_LIKELY(layerNode->getLayer() != nullptr)) { 62 const Rect& layerDamage = layers.entries()[i].damage; 63 layerNode->computeOrdering(); 64 65 // map current light center into RenderNode's coordinate space 66 Vector3 lightCenter = mCanvasState.currentSnapshot()->getRelativeLightCenter(); 67 layerNode->getLayer()->inverseTransformInWindow.mapPoint3d(lightCenter); 68 69 saveForLayer(layerNode->getWidth(), layerNode->getHeight(), 0, 0, 70 layerDamage, lightCenter, nullptr, layerNode); 71 72 if (layerNode->getDisplayList()) { 73 deferNodeOps(*layerNode); 74 } 75 restoreForLayer(); 76 } 77 } 78 79 // It there are multiple render nodes, they are laid out as follows: 80 // #0 - backdrop (content + caption) 81 // #1 - content (positioned at (0,0) and clipped to - its bounds mContentDrawBounds) 82 // #2 - additional overlay nodes 83 // Usually the backdrop cannot be seen since it will be entirely covered by the content. While 84 // resizing however it might become partially visible. The following render loop will crop the 85 // backdrop against the content and draw the remaining part of it. It will then draw the content 86 // cropped to the backdrop (since that indicates a shrinking of the window). 87 // 88 // Additional nodes will be drawn on top with no particular clipping semantics. 89 90 // The bounds of the backdrop against which the content should be clipped. 91 Rect backdropBounds = contentDrawBounds; 92 // Usually the contents bounds should be mContentDrawBounds - however - we will 93 // move it towards the fixed edge to give it a more stable appearance (for the moment). 94 // If there is no content bounds we ignore the layering as stated above and start with 2. 95 int layer = (contentDrawBounds.isEmpty() || nodes.size() == 1) ? 2 : 0; 96 97 for (const sp<RenderNode>& node : nodes) { 98 if (node->nothingToDraw()) continue; 99 node->computeOrdering(); 100 int count = mCanvasState.save(SaveFlags::MatrixClip); 101 102 if (layer == 0) { 103 const RenderProperties& properties = node->properties(); 104 Rect targetBounds(properties.getLeft(), properties.getTop(), 105 properties.getRight(), properties.getBottom()); 106 // Move the content bounds towards the fixed corner of the backdrop. 107 const int x = targetBounds.left; 108 const int y = targetBounds.top; 109 // Remember the intersection of the target bounds and the intersection bounds against 110 // which we have to crop the content. 111 backdropBounds.set(x, y, x + backdropBounds.getWidth(), y + backdropBounds.getHeight()); 112 backdropBounds.doIntersect(targetBounds); 113 } else if (layer == 1) { 114 // We shift and clip the content to match its final location in the window. 115 const float left = contentDrawBounds.left; 116 const float top = contentDrawBounds.top; 117 const float dx = backdropBounds.left - left; 118 const float dy = backdropBounds.top - top; 119 const float width = backdropBounds.getWidth(); 120 const float height = backdropBounds.getHeight(); 121 mCanvasState.translate(dx, dy); 122 // It gets cropped against the bounds of the backdrop to stay inside. 123 mCanvasState.clipRect(left, top, left + width, top + height, SkRegion::kIntersect_Op); 124 } 125 126 deferNodePropsAndOps(*node); 127 mCanvasState.restoreToCount(count); 128 layer++; 129 } 130} 131 132void FrameBuilder::onViewportInitialized() {} 133 134void FrameBuilder::onSnapshotRestored(const Snapshot& removed, const Snapshot& restored) {} 135 136void FrameBuilder::deferNodePropsAndOps(RenderNode& node) { 137 const RenderProperties& properties = node.properties(); 138 const Outline& outline = properties.getOutline(); 139 if (properties.getAlpha() <= 0 140 || (outline.getShouldClip() && outline.isEmpty()) 141 || properties.getScaleX() == 0 142 || properties.getScaleY() == 0) { 143 return; // rejected 144 } 145 146 if (properties.getLeft() != 0 || properties.getTop() != 0) { 147 mCanvasState.translate(properties.getLeft(), properties.getTop()); 148 } 149 if (properties.getStaticMatrix()) { 150 mCanvasState.concatMatrix(*properties.getStaticMatrix()); 151 } else if (properties.getAnimationMatrix()) { 152 mCanvasState.concatMatrix(*properties.getAnimationMatrix()); 153 } 154 if (properties.hasTransformMatrix()) { 155 if (properties.isTransformTranslateOnly()) { 156 mCanvasState.translate(properties.getTranslationX(), properties.getTranslationY()); 157 } else { 158 mCanvasState.concatMatrix(*properties.getTransformMatrix()); 159 } 160 } 161 162 const int width = properties.getWidth(); 163 const int height = properties.getHeight(); 164 165 Rect saveLayerBounds; // will be set to non-empty if saveLayer needed 166 const bool isLayer = properties.effectiveLayerType() != LayerType::None; 167 int clipFlags = properties.getClippingFlags(); 168 if (properties.getAlpha() < 1) { 169 if (isLayer) { 170 clipFlags &= ~CLIP_TO_BOUNDS; // bounds clipping done by layer 171 } 172 if (CC_LIKELY(isLayer || !properties.getHasOverlappingRendering())) { 173 // simply scale rendering content's alpha 174 mCanvasState.scaleAlpha(properties.getAlpha()); 175 } else { 176 // schedule saveLayer by initializing saveLayerBounds 177 saveLayerBounds.set(0, 0, width, height); 178 if (clipFlags) { 179 properties.getClippingRectForFlags(clipFlags, &saveLayerBounds); 180 clipFlags = 0; // all clipping done by savelayer 181 } 182 } 183 184 if (CC_UNLIKELY(ATRACE_ENABLED() && properties.promotedToLayer())) { 185 // pretend alpha always causes savelayer to warn about 186 // performance problem affecting old versions 187 ATRACE_FORMAT("%s alpha caused saveLayer %dx%d", node.getName(), width, height); 188 } 189 } 190 if (clipFlags) { 191 Rect clipRect; 192 properties.getClippingRectForFlags(clipFlags, &clipRect); 193 mCanvasState.clipRect(clipRect.left, clipRect.top, clipRect.right, clipRect.bottom, 194 SkRegion::kIntersect_Op); 195 } 196 197 if (properties.getRevealClip().willClip()) { 198 Rect bounds; 199 properties.getRevealClip().getBounds(&bounds); 200 mCanvasState.setClippingRoundRect(mAllocator, 201 bounds, properties.getRevealClip().getRadius()); 202 } else if (properties.getOutline().willClip()) { 203 mCanvasState.setClippingOutline(mAllocator, &(properties.getOutline())); 204 } 205 206 bool quickRejected = mCanvasState.currentSnapshot()->getRenderTargetClip().isEmpty() 207 || (properties.getClipToBounds() 208 && mCanvasState.quickRejectConservative(0, 0, width, height)); 209 if (!quickRejected) { 210 // not rejected, so defer render as either Layer, or direct (possibly wrapped in saveLayer) 211 if (node.getLayer()) { 212 // HW layer 213 LayerOp* drawLayerOp = mAllocator.create_trivial<LayerOp>(node); 214 BakedOpState* bakedOpState = tryBakeOpState(*drawLayerOp); 215 if (bakedOpState) { 216 // Node's layer already deferred, schedule it to render into parent layer 217 currentLayer().deferUnmergeableOp(mAllocator, bakedOpState, OpBatchType::Bitmap); 218 } 219 } else if (CC_UNLIKELY(!saveLayerBounds.isEmpty())) { 220 // draw DisplayList contents within temporary, since persisted layer could not be used. 221 // (temp layers are clipped to viewport, since they don't persist offscreen content) 222 SkPaint saveLayerPaint; 223 saveLayerPaint.setAlpha(properties.getAlpha()); 224 deferBeginLayerOp(*mAllocator.create_trivial<BeginLayerOp>( 225 saveLayerBounds, 226 Matrix4::identity(), 227 nullptr, // no record-time clip - need only respect defer-time one 228 &saveLayerPaint)); 229 deferNodeOps(node); 230 deferEndLayerOp(*mAllocator.create_trivial<EndLayerOp>()); 231 } else { 232 deferNodeOps(node); 233 } 234 } 235} 236 237typedef key_value_pair_t<float, const RenderNodeOp*> ZRenderNodeOpPair; 238 239template <typename V> 240static void buildZSortedChildList(V* zTranslatedNodes, 241 const DisplayList& displayList, const DisplayList::Chunk& chunk) { 242 if (chunk.beginChildIndex == chunk.endChildIndex) return; 243 244 for (size_t i = chunk.beginChildIndex; i < chunk.endChildIndex; i++) { 245 RenderNodeOp* childOp = displayList.getChildren()[i]; 246 RenderNode* child = childOp->renderNode; 247 float childZ = child->properties().getZ(); 248 249 if (!MathUtils::isZero(childZ) && chunk.reorderChildren) { 250 zTranslatedNodes->push_back(ZRenderNodeOpPair(childZ, childOp)); 251 childOp->skipInOrderDraw = true; 252 } else if (!child->properties().getProjectBackwards()) { 253 // regular, in order drawing DisplayList 254 childOp->skipInOrderDraw = false; 255 } 256 } 257 258 // Z sort any 3d children (stable-ness makes z compare fall back to standard drawing order) 259 std::stable_sort(zTranslatedNodes->begin(), zTranslatedNodes->end()); 260} 261 262template <typename V> 263static size_t findNonNegativeIndex(const V& zTranslatedNodes) { 264 for (size_t i = 0; i < zTranslatedNodes.size(); i++) { 265 if (zTranslatedNodes[i].key >= 0.0f) return i; 266 } 267 return zTranslatedNodes.size(); 268} 269 270template <typename V> 271void FrameBuilder::defer3dChildren(ChildrenSelectMode mode, const V& zTranslatedNodes) { 272 const int size = zTranslatedNodes.size(); 273 if (size == 0 274 || (mode == ChildrenSelectMode::Negative&& zTranslatedNodes[0].key > 0.0f) 275 || (mode == ChildrenSelectMode::Positive && zTranslatedNodes[size - 1].key < 0.0f)) { 276 // no 3d children to draw 277 return; 278 } 279 280 /** 281 * Draw shadows and (potential) casters mostly in order, but allow the shadows of casters 282 * with very similar Z heights to draw together. 283 * 284 * This way, if Views A & B have the same Z height and are both casting shadows, the shadows are 285 * underneath both, and neither's shadow is drawn on top of the other. 286 */ 287 const size_t nonNegativeIndex = findNonNegativeIndex(zTranslatedNodes); 288 size_t drawIndex, shadowIndex, endIndex; 289 if (mode == ChildrenSelectMode::Negative) { 290 drawIndex = 0; 291 endIndex = nonNegativeIndex; 292 shadowIndex = endIndex; // draw no shadows 293 } else { 294 drawIndex = nonNegativeIndex; 295 endIndex = size; 296 shadowIndex = drawIndex; // potentially draw shadow for each pos Z child 297 } 298 299 float lastCasterZ = 0.0f; 300 while (shadowIndex < endIndex || drawIndex < endIndex) { 301 if (shadowIndex < endIndex) { 302 const RenderNodeOp* casterNodeOp = zTranslatedNodes[shadowIndex].value; 303 const float casterZ = zTranslatedNodes[shadowIndex].key; 304 // attempt to render the shadow if the caster about to be drawn is its caster, 305 // OR if its caster's Z value is similar to the previous potential caster 306 if (shadowIndex == drawIndex || casterZ - lastCasterZ < 0.1f) { 307 deferShadow(*casterNodeOp); 308 309 lastCasterZ = casterZ; // must do this even if current caster not casting a shadow 310 shadowIndex++; 311 continue; 312 } 313 } 314 315 const RenderNodeOp* childOp = zTranslatedNodes[drawIndex].value; 316 deferRenderNodeOpImpl(*childOp); 317 drawIndex++; 318 } 319} 320 321void FrameBuilder::deferShadow(const RenderNodeOp& casterNodeOp) { 322 auto& node = *casterNodeOp.renderNode; 323 auto& properties = node.properties(); 324 325 if (properties.getAlpha() <= 0.0f 326 || properties.getOutline().getAlpha() <= 0.0f 327 || !properties.getOutline().getPath() 328 || properties.getScaleX() == 0 329 || properties.getScaleY() == 0) { 330 // no shadow to draw 331 return; 332 } 333 334 const SkPath* casterOutlinePath = properties.getOutline().getPath(); 335 const SkPath* revealClipPath = properties.getRevealClip().getPath(); 336 if (revealClipPath && revealClipPath->isEmpty()) return; 337 338 float casterAlpha = properties.getAlpha() * properties.getOutline().getAlpha(); 339 340 // holds temporary SkPath to store the result of intersections 341 SkPath* frameAllocatedPath = nullptr; 342 const SkPath* casterPath = casterOutlinePath; 343 344 // intersect the shadow-casting path with the reveal, if present 345 if (revealClipPath) { 346 frameAllocatedPath = createFrameAllocatedPath(); 347 348 Op(*casterPath, *revealClipPath, kIntersect_SkPathOp, frameAllocatedPath); 349 casterPath = frameAllocatedPath; 350 } 351 352 // intersect the shadow-casting path with the clipBounds, if present 353 if (properties.getClippingFlags() & CLIP_TO_CLIP_BOUNDS) { 354 if (!frameAllocatedPath) { 355 frameAllocatedPath = createFrameAllocatedPath(); 356 } 357 Rect clipBounds; 358 properties.getClippingRectForFlags(CLIP_TO_CLIP_BOUNDS, &clipBounds); 359 SkPath clipBoundsPath; 360 clipBoundsPath.addRect(clipBounds.left, clipBounds.top, 361 clipBounds.right, clipBounds.bottom); 362 363 Op(*casterPath, clipBoundsPath, kIntersect_SkPathOp, frameAllocatedPath); 364 casterPath = frameAllocatedPath; 365 } 366 367 368 if (CC_LIKELY(!mCanvasState.getRenderTargetClipBounds().isEmpty())) { 369 Matrix4 shadowMatrixXY(casterNodeOp.localMatrix); 370 Matrix4 shadowMatrixZ(casterNodeOp.localMatrix); 371 node.applyViewPropertyTransforms(shadowMatrixXY, false); 372 node.applyViewPropertyTransforms(shadowMatrixZ, true); 373 374 LOG_ALWAYS_FATAL_IF(!mCaches, "Caches needed for shadows"); 375 sp<TessellationCache::ShadowTask> task = mCaches->tessellationCache.getShadowTask( 376 mCanvasState.currentTransform(), 377 mCanvasState.getLocalClipBounds(), 378 casterAlpha >= 1.0f, 379 casterPath, 380 &shadowMatrixXY, &shadowMatrixZ, 381 mCanvasState.currentSnapshot()->getRelativeLightCenter(), 382 mLightRadius); 383 ShadowOp* shadowOp = mAllocator.create<ShadowOp>(task, casterAlpha); 384 BakedOpState* bakedOpState = BakedOpState::tryShadowOpConstruct( 385 mAllocator, *mCanvasState.writableSnapshot(), shadowOp); 386 if (CC_LIKELY(bakedOpState)) { 387 currentLayer().deferUnmergeableOp(mAllocator, bakedOpState, OpBatchType::Shadow); 388 } 389 } 390} 391 392void FrameBuilder::deferProjectedChildren(const RenderNode& renderNode) { 393 int count = mCanvasState.save(SaveFlags::MatrixClip); 394 const SkPath* projectionReceiverOutline = renderNode.properties().getOutline().getPath(); 395 396 SkPath transformedMaskPath; // on stack, since BakedOpState makes a deep copy 397 if (projectionReceiverOutline) { 398 // transform the mask for this projector into render target space 399 // TODO: consider combining both transforms by stashing transform instead of applying 400 SkMatrix skCurrentTransform; 401 mCanvasState.currentTransform()->copyTo(skCurrentTransform); 402 projectionReceiverOutline->transform( 403 skCurrentTransform, 404 &transformedMaskPath); 405 mCanvasState.setProjectionPathMask(mAllocator, &transformedMaskPath); 406 } 407 408 for (size_t i = 0; i < renderNode.mProjectedNodes.size(); i++) { 409 RenderNodeOp* childOp = renderNode.mProjectedNodes[i]; 410 RenderNode& childNode = *childOp->renderNode; 411 412 // Draw child if it has content, but ignore state in childOp - matrix already applied to 413 // transformFromCompositingAncestor, and record-time clip is ignored when projecting 414 if (!childNode.nothingToDraw()) { 415 int restoreTo = mCanvasState.save(SaveFlags::MatrixClip); 416 417 // Apply transform between ancestor and projected descendant 418 mCanvasState.concatMatrix(childOp->transformFromCompositingAncestor); 419 420 deferNodePropsAndOps(childNode); 421 422 mCanvasState.restoreToCount(restoreTo); 423 } 424 } 425 mCanvasState.restoreToCount(count); 426} 427 428/** 429 * Used to define a list of lambdas referencing private FrameBuilder::onXX::defer() methods. 430 * 431 * This allows opIds embedded in the RecordedOps to be used for dispatching to these lambdas. 432 * E.g. a BitmapOp op then would be dispatched to FrameBuilder::onBitmapOp(const BitmapOp&) 433 */ 434#define OP_RECEIVER(Type) \ 435 [](FrameBuilder& frameBuilder, const RecordedOp& op) { frameBuilder.defer##Type(static_cast<const Type&>(op)); }, 436void FrameBuilder::deferNodeOps(const RenderNode& renderNode) { 437 typedef void (*OpDispatcher) (FrameBuilder& frameBuilder, const RecordedOp& op); 438 static OpDispatcher receivers[] = BUILD_DEFERRABLE_OP_LUT(OP_RECEIVER); 439 440 // can't be null, since DL=null node rejection happens before deferNodePropsAndOps 441 const DisplayList& displayList = *(renderNode.getDisplayList()); 442 for (const DisplayList::Chunk& chunk : displayList.getChunks()) { 443 FatVector<ZRenderNodeOpPair, 16> zTranslatedNodes; 444 buildZSortedChildList(&zTranslatedNodes, displayList, chunk); 445 446 defer3dChildren(ChildrenSelectMode::Negative, zTranslatedNodes); 447 for (size_t opIndex = chunk.beginOpIndex; opIndex < chunk.endOpIndex; opIndex++) { 448 const RecordedOp* op = displayList.getOps()[opIndex]; 449 receivers[op->opId](*this, *op); 450 451 if (CC_UNLIKELY(!renderNode.mProjectedNodes.empty() 452 && displayList.projectionReceiveIndex >= 0 453 && static_cast<int>(opIndex) == displayList.projectionReceiveIndex)) { 454 deferProjectedChildren(renderNode); 455 } 456 } 457 defer3dChildren(ChildrenSelectMode::Positive, zTranslatedNodes); 458 } 459} 460 461void FrameBuilder::deferRenderNodeOpImpl(const RenderNodeOp& op) { 462 if (op.renderNode->nothingToDraw()) return; 463 int count = mCanvasState.save(SaveFlags::MatrixClip); 464 465 // apply state from RecordedOp (clip first, since op's clip is transformed by current matrix) 466 mCanvasState.writableSnapshot()->mutateClipArea().applyClip(op.localClip, 467 *mCanvasState.currentSnapshot()->transform); 468 mCanvasState.concatMatrix(op.localMatrix); 469 470 // then apply state from node properties, and defer ops 471 deferNodePropsAndOps(*op.renderNode); 472 473 mCanvasState.restoreToCount(count); 474} 475 476void FrameBuilder::deferRenderNodeOp(const RenderNodeOp& op) { 477 if (!op.skipInOrderDraw) { 478 deferRenderNodeOpImpl(op); 479 } 480} 481 482/** 483 * Defers an unmergeable, strokeable op, accounting correctly 484 * for paint's style on the bounds being computed. 485 */ 486void FrameBuilder::deferStrokeableOp(const RecordedOp& op, batchid_t batchId, 487 BakedOpState::StrokeBehavior strokeBehavior) { 488 // Note: here we account for stroke when baking the op 489 BakedOpState* bakedState = BakedOpState::tryStrokeableOpConstruct( 490 mAllocator, *mCanvasState.writableSnapshot(), op, strokeBehavior); 491 if (!bakedState) return; // quick rejected 492 currentLayer().deferUnmergeableOp(mAllocator, bakedState, batchId); 493} 494 495/** 496 * Returns batch id for tessellatable shapes, based on paint. Checks to see if path effect/AA will 497 * be used, since they trigger significantly different rendering paths. 498 * 499 * Note: not used for lines/points, since they don't currently support path effects. 500 */ 501static batchid_t tessBatchId(const RecordedOp& op) { 502 const SkPaint& paint = *(op.paint); 503 return paint.getPathEffect() 504 ? OpBatchType::AlphaMaskTexture 505 : (paint.isAntiAlias() ? OpBatchType::AlphaVertices : OpBatchType::Vertices); 506} 507 508void FrameBuilder::deferArcOp(const ArcOp& op) { 509 deferStrokeableOp(op, tessBatchId(op)); 510} 511 512static bool hasMergeableClip(const BakedOpState& state) { 513 return state.computedState.clipState 514 || state.computedState.clipState->mode == ClipMode::Rectangle; 515} 516 517void FrameBuilder::deferBitmapOp(const BitmapOp& op) { 518 BakedOpState* bakedState = tryBakeOpState(op); 519 if (!bakedState) return; // quick rejected 520 521 // Don't merge non-simply transformed or neg scale ops, SET_TEXTURE doesn't handle rotation 522 // Don't merge A8 bitmaps - the paint's color isn't compared by mergeId, or in 523 // MergingDrawBatch::canMergeWith() 524 if (bakedState->computedState.transform.isSimple() 525 && bakedState->computedState.transform.positiveScale() 526 && PaintUtils::getXfermodeDirect(op.paint) == SkXfermode::kSrcOver_Mode 527 && op.bitmap->colorType() != kAlpha_8_SkColorType 528 && hasMergeableClip(*bakedState)) { 529 mergeid_t mergeId = reinterpret_cast<mergeid_t>(op.bitmap->getGenerationID()); 530 // TODO: AssetAtlas in mergeId 531 currentLayer().deferMergeableOp(mAllocator, bakedState, OpBatchType::Bitmap, mergeId); 532 } else { 533 currentLayer().deferUnmergeableOp(mAllocator, bakedState, OpBatchType::Bitmap); 534 } 535} 536 537void FrameBuilder::deferBitmapMeshOp(const BitmapMeshOp& op) { 538 BakedOpState* bakedState = tryBakeOpState(op); 539 if (!bakedState) return; // quick rejected 540 currentLayer().deferUnmergeableOp(mAllocator, bakedState, OpBatchType::Bitmap); 541} 542 543void FrameBuilder::deferBitmapRectOp(const BitmapRectOp& op) { 544 BakedOpState* bakedState = tryBakeOpState(op); 545 if (!bakedState) return; // quick rejected 546 currentLayer().deferUnmergeableOp(mAllocator, bakedState, OpBatchType::Bitmap); 547} 548 549void FrameBuilder::deferVectorDrawableOp(const VectorDrawableOp& op) { 550 const SkBitmap& bitmap = op.vectorDrawable->getBitmapUpdateIfDirty(); 551 SkPaint* paint = op.vectorDrawable->getPaint(); 552 const BitmapRectOp* resolvedOp = mAllocator.create_trivial<BitmapRectOp>(op.unmappedBounds, 553 op.localMatrix, 554 op.localClip, 555 paint, 556 &bitmap, 557 Rect(bitmap.width(), bitmap.height())); 558 deferBitmapRectOp(*resolvedOp); 559} 560 561void FrameBuilder::deferCirclePropsOp(const CirclePropsOp& op) { 562 // allocate a temporary oval op (with mAllocator, so it persists until render), so the 563 // renderer doesn't have to handle the RoundRectPropsOp type, and so state baking is simple. 564 float x = *(op.x); 565 float y = *(op.y); 566 float radius = *(op.radius); 567 Rect unmappedBounds(x - radius, y - radius, x + radius, y + radius); 568 const OvalOp* resolvedOp = mAllocator.create_trivial<OvalOp>( 569 unmappedBounds, 570 op.localMatrix, 571 op.localClip, 572 op.paint); 573 deferOvalOp(*resolvedOp); 574} 575 576void FrameBuilder::deferFunctorOp(const FunctorOp& op) { 577 BakedOpState* bakedState = tryBakeUnboundedOpState(op); 578 if (!bakedState) return; // quick rejected 579 currentLayer().deferUnmergeableOp(mAllocator, bakedState, OpBatchType::Functor); 580} 581 582void FrameBuilder::deferLinesOp(const LinesOp& op) { 583 batchid_t batch = op.paint->isAntiAlias() ? OpBatchType::AlphaVertices : OpBatchType::Vertices; 584 deferStrokeableOp(op, batch, BakedOpState::StrokeBehavior::Forced); 585} 586 587void FrameBuilder::deferOvalOp(const OvalOp& op) { 588 deferStrokeableOp(op, tessBatchId(op)); 589} 590 591void FrameBuilder::deferPatchOp(const PatchOp& op) { 592 BakedOpState* bakedState = tryBakeOpState(op); 593 if (!bakedState) return; // quick rejected 594 595 if (bakedState->computedState.transform.isPureTranslate() 596 && PaintUtils::getXfermodeDirect(op.paint) == SkXfermode::kSrcOver_Mode 597 && hasMergeableClip(*bakedState)) { 598 mergeid_t mergeId = reinterpret_cast<mergeid_t>(op.bitmap->getGenerationID()); 599 // TODO: AssetAtlas in mergeId 600 601 // Only use the MergedPatch batchId when merged, so Bitmap+Patch don't try to merge together 602 currentLayer().deferMergeableOp(mAllocator, bakedState, OpBatchType::MergedPatch, mergeId); 603 } else { 604 // Use Bitmap batchId since Bitmap+Patch use same shader 605 currentLayer().deferUnmergeableOp(mAllocator, bakedState, OpBatchType::Bitmap); 606 } 607} 608 609void FrameBuilder::deferPathOp(const PathOp& op) { 610 deferStrokeableOp(op, OpBatchType::Bitmap); 611} 612 613void FrameBuilder::deferPointsOp(const PointsOp& op) { 614 batchid_t batch = op.paint->isAntiAlias() ? OpBatchType::AlphaVertices : OpBatchType::Vertices; 615 deferStrokeableOp(op, batch, BakedOpState::StrokeBehavior::Forced); 616} 617 618void FrameBuilder::deferRectOp(const RectOp& op) { 619 deferStrokeableOp(op, tessBatchId(op)); 620} 621 622void FrameBuilder::deferRoundRectOp(const RoundRectOp& op) { 623 deferStrokeableOp(op, tessBatchId(op)); 624} 625 626void FrameBuilder::deferRoundRectPropsOp(const RoundRectPropsOp& op) { 627 // allocate a temporary round rect op (with mAllocator, so it persists until render), so the 628 // renderer doesn't have to handle the RoundRectPropsOp type, and so state baking is simple. 629 const RoundRectOp* resolvedOp = mAllocator.create_trivial<RoundRectOp>( 630 Rect(*(op.left), *(op.top), *(op.right), *(op.bottom)), 631 op.localMatrix, 632 op.localClip, 633 op.paint, *op.rx, *op.ry); 634 deferRoundRectOp(*resolvedOp); 635} 636 637void FrameBuilder::deferSimpleRectsOp(const SimpleRectsOp& op) { 638 BakedOpState* bakedState = tryBakeOpState(op); 639 if (!bakedState) return; // quick rejected 640 currentLayer().deferUnmergeableOp(mAllocator, bakedState, OpBatchType::Vertices); 641} 642 643static batchid_t textBatchId(const SkPaint& paint) { 644 // TODO: better handling of shader (since we won't care about color then) 645 return paint.getColor() == SK_ColorBLACK ? OpBatchType::Text : OpBatchType::ColorText; 646} 647 648void FrameBuilder::deferTextOp(const TextOp& op) { 649 BakedOpState* bakedState = BakedOpState::tryStrokeableOpConstruct( 650 mAllocator, *mCanvasState.writableSnapshot(), op, 651 BakedOpState::StrokeBehavior::StyleDefined); 652 if (!bakedState) return; // quick rejected 653 654 batchid_t batchId = textBatchId(*(op.paint)); 655 if (bakedState->computedState.transform.isPureTranslate() 656 && PaintUtils::getXfermodeDirect(op.paint) == SkXfermode::kSrcOver_Mode 657 && hasMergeableClip(*bakedState)) { 658 mergeid_t mergeId = reinterpret_cast<mergeid_t>(op.paint->getColor()); 659 currentLayer().deferMergeableOp(mAllocator, bakedState, batchId, mergeId); 660 } else { 661 currentLayer().deferUnmergeableOp(mAllocator, bakedState, batchId); 662 } 663} 664 665void FrameBuilder::deferTextOnPathOp(const TextOnPathOp& op) { 666 BakedOpState* bakedState = tryBakeUnboundedOpState(op); 667 if (!bakedState) return; // quick rejected 668 currentLayer().deferUnmergeableOp(mAllocator, bakedState, textBatchId(*(op.paint))); 669} 670 671void FrameBuilder::deferTextureLayerOp(const TextureLayerOp& op) { 672 BakedOpState* bakedState = tryBakeOpState(op); 673 if (!bakedState) return; // quick rejected 674 currentLayer().deferUnmergeableOp(mAllocator, bakedState, OpBatchType::TextureLayer); 675} 676 677void FrameBuilder::saveForLayer(uint32_t layerWidth, uint32_t layerHeight, 678 float contentTranslateX, float contentTranslateY, 679 const Rect& repaintRect, 680 const Vector3& lightCenter, 681 const BeginLayerOp* beginLayerOp, RenderNode* renderNode) { 682 mCanvasState.save(SaveFlags::MatrixClip); 683 mCanvasState.writableSnapshot()->initializeViewport(layerWidth, layerHeight); 684 mCanvasState.writableSnapshot()->roundRectClipState = nullptr; 685 mCanvasState.writableSnapshot()->setRelativeLightCenter(lightCenter); 686 mCanvasState.writableSnapshot()->transform->loadTranslate( 687 contentTranslateX, contentTranslateY, 0); 688 mCanvasState.writableSnapshot()->setClip( 689 repaintRect.left, repaintRect.top, repaintRect.right, repaintRect.bottom); 690 691 // create a new layer repaint, and push its index on the stack 692 mLayerStack.push_back(mLayerBuilders.size()); 693 auto newFbo = mAllocator.create<LayerBuilder>(layerWidth, layerHeight, 694 repaintRect, beginLayerOp, renderNode); 695 mLayerBuilders.push_back(newFbo); 696} 697 698void FrameBuilder::restoreForLayer() { 699 // restore canvas, and pop finished layer off of the stack 700 mCanvasState.restore(); 701 mLayerStack.pop_back(); 702} 703 704// TODO: defer time rejection (when bounds become empty) + tests 705// Option - just skip layers with no bounds at playback + defer? 706void FrameBuilder::deferBeginLayerOp(const BeginLayerOp& op) { 707 uint32_t layerWidth = (uint32_t) op.unmappedBounds.getWidth(); 708 uint32_t layerHeight = (uint32_t) op.unmappedBounds.getHeight(); 709 710 auto previous = mCanvasState.currentSnapshot(); 711 Vector3 lightCenter = previous->getRelativeLightCenter(); 712 713 // Combine all transforms used to present saveLayer content: 714 // parent content transform * canvas transform * bounds offset 715 Matrix4 contentTransform(*(previous->transform)); 716 contentTransform.multiply(op.localMatrix); 717 contentTransform.translate(op.unmappedBounds.left, op.unmappedBounds.top); 718 719 Matrix4 inverseContentTransform; 720 inverseContentTransform.loadInverse(contentTransform); 721 722 // map the light center into layer-relative space 723 inverseContentTransform.mapPoint3d(lightCenter); 724 725 // Clip bounds of temporary layer to parent's clip rect, so: 726 Rect saveLayerBounds(layerWidth, layerHeight); 727 // 1) transform Rect(width, height) into parent's space 728 // note: left/top offsets put in contentTransform above 729 contentTransform.mapRect(saveLayerBounds); 730 // 2) intersect with parent's clip 731 saveLayerBounds.doIntersect(previous->getRenderTargetClip()); 732 // 3) and transform back 733 inverseContentTransform.mapRect(saveLayerBounds); 734 saveLayerBounds.doIntersect(Rect(layerWidth, layerHeight)); 735 saveLayerBounds.roundOut(); 736 737 // if bounds are reduced, will clip the layer's area by reducing required bounds... 738 layerWidth = saveLayerBounds.getWidth(); 739 layerHeight = saveLayerBounds.getHeight(); 740 // ...and shifting drawing content to account for left/top side clipping 741 float contentTranslateX = -saveLayerBounds.left; 742 float contentTranslateY = -saveLayerBounds.top; 743 744 saveForLayer(layerWidth, layerHeight, 745 contentTranslateX, contentTranslateY, 746 Rect(layerWidth, layerHeight), 747 lightCenter, 748 &op, nullptr); 749} 750 751void FrameBuilder::deferEndLayerOp(const EndLayerOp& /* ignored */) { 752 const BeginLayerOp& beginLayerOp = *currentLayer().beginLayerOp; 753 int finishedLayerIndex = mLayerStack.back(); 754 755 restoreForLayer(); 756 757 // record the draw operation into the previous layer's list of draw commands 758 // uses state from the associated beginLayerOp, since it has all the state needed for drawing 759 LayerOp* drawLayerOp = mAllocator.create_trivial<LayerOp>( 760 beginLayerOp.unmappedBounds, 761 beginLayerOp.localMatrix, 762 beginLayerOp.localClip, 763 beginLayerOp.paint, 764 &(mLayerBuilders[finishedLayerIndex]->offscreenBuffer)); 765 BakedOpState* bakedOpState = tryBakeOpState(*drawLayerOp); 766 767 if (bakedOpState) { 768 // Layer will be drawn into parent layer (which is now current, since we popped mLayerStack) 769 currentLayer().deferUnmergeableOp(mAllocator, bakedOpState, OpBatchType::Bitmap); 770 } else { 771 // Layer won't be drawn - delete its drawing batches to prevent it from doing any work 772 // TODO: need to prevent any render work from being done 773 // - create layerop earlier for reject purposes? 774 mLayerBuilders[finishedLayerIndex]->clear(); 775 return; 776 } 777} 778 779void FrameBuilder::deferBeginUnclippedLayerOp(const BeginUnclippedLayerOp& op) { 780 Matrix4 boundsTransform(*(mCanvasState.currentSnapshot()->transform)); 781 boundsTransform.multiply(op.localMatrix); 782 783 Rect dstRect(op.unmappedBounds); 784 boundsTransform.mapRect(dstRect); 785 dstRect.doIntersect(mCanvasState.currentSnapshot()->getRenderTargetClip()); 786 787 if (dstRect.isEmpty()) { 788 // Unclipped layer rejected - push a null op, so next EndUnclippedLayerOp is ignored 789 currentLayer().activeUnclippedSaveLayers.push_back(nullptr); 790 } else { 791 // Allocate a holding position for the layer object (copyTo will produce, copyFrom will consume) 792 OffscreenBuffer** layerHandle = mAllocator.create<OffscreenBuffer*>(nullptr); 793 794 /** 795 * First, defer an operation to copy out the content from the rendertarget into a layer. 796 */ 797 auto copyToOp = mAllocator.create_trivial<CopyToLayerOp>(op, layerHandle); 798 BakedOpState* bakedState = BakedOpState::directConstruct(mAllocator, 799 &(currentLayer().repaintClip), dstRect, *copyToOp); 800 currentLayer().deferUnmergeableOp(mAllocator, bakedState, OpBatchType::CopyToLayer); 801 802 /** 803 * Defer a clear rect, so that clears from multiple unclipped layers can be drawn 804 * both 1) simultaneously, and 2) as long after the copyToLayer executes as possible 805 */ 806 currentLayer().deferLayerClear(dstRect); 807 808 /** 809 * And stash an operation to copy that layer back under the rendertarget until 810 * a balanced EndUnclippedLayerOp is seen 811 */ 812 auto copyFromOp = mAllocator.create_trivial<CopyFromLayerOp>(op, layerHandle); 813 bakedState = BakedOpState::directConstruct(mAllocator, 814 &(currentLayer().repaintClip), dstRect, *copyFromOp); 815 currentLayer().activeUnclippedSaveLayers.push_back(bakedState); 816 } 817} 818 819void FrameBuilder::deferEndUnclippedLayerOp(const EndUnclippedLayerOp& /* ignored */) { 820 LOG_ALWAYS_FATAL_IF(currentLayer().activeUnclippedSaveLayers.empty(), "no layer to end!"); 821 822 BakedOpState* copyFromLayerOp = currentLayer().activeUnclippedSaveLayers.back(); 823 currentLayer().activeUnclippedSaveLayers.pop_back(); 824 if (copyFromLayerOp) { 825 currentLayer().deferUnmergeableOp(mAllocator, copyFromLayerOp, OpBatchType::CopyFromLayer); 826 } 827} 828 829} // namespace uirenderer 830} // namespace android 831