DeferredDisplayList.cpp revision b45c6aa665624013ef3b207fffcfe265041f6bff
1/* 2 * Copyright (C) 2013 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 <SkCanvas.h> 18 19#include <utils/Trace.h> 20#include <ui/Rect.h> 21#include <ui/Region.h> 22 23#include "Caches.h" 24#include "Debug.h" 25#include "DeferredDisplayList.h" 26#include "DisplayListOp.h" 27#include "OpenGLRenderer.h" 28#include "Properties.h" 29#include "utils/MathUtils.h" 30 31#if DEBUG_DEFER 32 #define DEFER_LOGD(...) ALOGD(__VA_ARGS__) 33#else 34 #define DEFER_LOGD(...) 35#endif 36 37namespace android { 38namespace uirenderer { 39 40// Depth of the save stack at the beginning of batch playback at flush time 41#define FLUSH_SAVE_STACK_DEPTH 2 42 43#define DEBUG_COLOR_BARRIER 0x1f000000 44#define DEBUG_COLOR_MERGEDBATCH 0x5f7f7fff 45#define DEBUG_COLOR_MERGEDBATCH_SOLO 0x5f7fff7f 46 47static bool avoidOverdraw() { 48 // Don't avoid overdraw when visualizing it, since that makes it harder to 49 // debug where it's coming from, and when the problem occurs. 50 return !Properties::debugOverdraw; 51}; 52 53///////////////////////////////////////////////////////////////////////////////// 54// Operation Batches 55///////////////////////////////////////////////////////////////////////////////// 56 57class Batch { 58public: 59 virtual void replay(OpenGLRenderer& renderer, Rect& dirty, int index) = 0; 60 virtual ~Batch() {} 61 virtual bool purelyDrawBatch() { return false; } 62 virtual bool coversBounds(const Rect& bounds) { return false; } 63}; 64 65class DrawBatch : public Batch { 66public: 67 DrawBatch(const DeferInfo& deferInfo) : mAllOpsOpaque(true), 68 mBatchId(deferInfo.batchId), mMergeId(deferInfo.mergeId) { 69 mOps.clear(); 70 } 71 72 virtual ~DrawBatch() { mOps.clear(); } 73 74 virtual void add(DrawOp* op, const DeferredDisplayState* state, bool opaqueOverBounds) { 75 // NOTE: ignore empty bounds special case, since we don't merge across those ops 76 mBounds.unionWith(state->mBounds); 77 mAllOpsOpaque &= opaqueOverBounds; 78 mOps.push_back(OpStatePair(op, state)); 79 } 80 81 bool intersects(const Rect& rect) { 82 if (!rect.intersects(mBounds)) return false; 83 84 for (unsigned int i = 0; i < mOps.size(); i++) { 85 if (rect.intersects(mOps[i].state->mBounds)) { 86#if DEBUG_DEFER 87 DEFER_LOGD("op intersects with op %p with bounds %f %f %f %f:", mOps[i].op, 88 mOps[i].state->mBounds.left, mOps[i].state->mBounds.top, 89 mOps[i].state->mBounds.right, mOps[i].state->mBounds.bottom); 90 mOps[i].op->output(2); 91#endif 92 return true; 93 } 94 } 95 return false; 96 } 97 98 virtual void replay(OpenGLRenderer& renderer, Rect& dirty, int index) override { 99 DEFER_LOGD("%d replaying DrawBatch %p, with %d ops (batch id %x, merge id %p)", 100 index, this, mOps.size(), getBatchId(), getMergeId()); 101 102 for (unsigned int i = 0; i < mOps.size(); i++) { 103 DrawOp* op = mOps[i].op; 104 const DeferredDisplayState* state = mOps[i].state; 105 renderer.restoreDisplayState(*state); 106 107#if DEBUG_DISPLAY_LIST_OPS_AS_EVENTS 108 renderer.eventMark(op->name()); 109#endif 110 op->applyDraw(renderer, dirty); 111 112#if DEBUG_MERGE_BEHAVIOR 113 const Rect& bounds = state->mBounds; 114 int batchColor = 0x1f000000; 115 if (getBatchId() & 0x1) batchColor |= 0x0000ff; 116 if (getBatchId() & 0x2) batchColor |= 0x00ff00; 117 if (getBatchId() & 0x4) batchColor |= 0xff0000; 118 renderer.drawScreenSpaceColorRect(bounds.left, bounds.top, bounds.right, bounds.bottom, 119 batchColor); 120#endif 121 } 122 } 123 124 virtual bool purelyDrawBatch() override { return true; } 125 126 virtual bool coversBounds(const Rect& bounds) override { 127 if (CC_LIKELY(!mAllOpsOpaque || !mBounds.contains(bounds) || count() == 1)) return false; 128 129 Region uncovered(android::Rect(bounds.left, bounds.top, bounds.right, bounds.bottom)); 130 for (unsigned int i = 0; i < mOps.size(); i++) { 131 const Rect &r = mOps[i].state->mBounds; 132 uncovered.subtractSelf(android::Rect(r.left, r.top, r.right, r.bottom)); 133 } 134 return uncovered.isEmpty(); 135 } 136 137 inline int getBatchId() const { return mBatchId; } 138 inline mergeid_t getMergeId() const { return mMergeId; } 139 inline int count() const { return mOps.size(); } 140 141protected: 142 std::vector<OpStatePair> mOps; 143 Rect mBounds; // union of bounds of contained ops 144private: 145 bool mAllOpsOpaque; 146 int mBatchId; 147 mergeid_t mMergeId; 148}; 149 150class MergingDrawBatch : public DrawBatch { 151public: 152 MergingDrawBatch(DeferInfo& deferInfo, int width, int height) : 153 DrawBatch(deferInfo), mClipRect(width, height), 154 mClipSideFlags(kClipSide_None) {} 155 156 /* 157 * Helper for determining if a new op can merge with a MergingDrawBatch based on their bounds 158 * and clip side flags. Positive bounds delta means new bounds fit in old. 159 */ 160 static inline bool checkSide(const int currentFlags, const int newFlags, const int side, 161 float boundsDelta) { 162 bool currentClipExists = currentFlags & side; 163 bool newClipExists = newFlags & side; 164 165 // if current is clipped, we must be able to fit new bounds in current 166 if (boundsDelta > 0 && currentClipExists) return false; 167 168 // if new is clipped, we must be able to fit current bounds in new 169 if (boundsDelta < 0 && newClipExists) return false; 170 171 return true; 172 } 173 174 /* 175 * Checks if a (mergeable) op can be merged into this batch 176 * 177 * If true, the op's multiDraw must be guaranteed to handle both ops simultaneously, so it is 178 * important to consider all paint attributes used in the draw calls in deciding both a) if an 179 * op tries to merge at all, and b) if the op can merge with another set of ops 180 * 181 * False positives can lead to information from the paints of subsequent merged operations being 182 * dropped, so we make simplifying qualifications on the ops that can merge, per op type. 183 */ 184 bool canMergeWith(const DrawOp* op, const DeferredDisplayState* state) { 185 bool isTextBatch = getBatchId() == DeferredDisplayList::kOpBatch_Text || 186 getBatchId() == DeferredDisplayList::kOpBatch_ColorText; 187 188 // Overlapping other operations is only allowed for text without shadow. For other ops, 189 // multiDraw isn't guaranteed to overdraw correctly 190 if (!isTextBatch || op->hasTextShadow()) { 191 if (intersects(state->mBounds)) return false; 192 } 193 const DeferredDisplayState* lhs = state; 194 const DeferredDisplayState* rhs = mOps[0].state; 195 196 if (!MathUtils::areEqual(lhs->mAlpha, rhs->mAlpha)) return false; 197 198 // Identical round rect clip state means both ops will clip in the same way, or not at all. 199 // As the state objects are const, we can compare their pointers to determine mergeability 200 if (lhs->mRoundRectClipState != rhs->mRoundRectClipState) return false; 201 if (lhs->mProjectionPathMask != rhs->mProjectionPathMask) return false; 202 203 /* Clipping compatibility check 204 * 205 * Exploits the fact that if a op or batch is clipped on a side, its bounds will equal its 206 * clip for that side. 207 */ 208 const int currentFlags = mClipSideFlags; 209 const int newFlags = state->mClipSideFlags; 210 if (currentFlags != kClipSide_None || newFlags != kClipSide_None) { 211 const Rect& opBounds = state->mBounds; 212 float boundsDelta = mBounds.left - opBounds.left; 213 if (!checkSide(currentFlags, newFlags, kClipSide_Left, boundsDelta)) return false; 214 boundsDelta = mBounds.top - opBounds.top; 215 if (!checkSide(currentFlags, newFlags, kClipSide_Top, boundsDelta)) return false; 216 217 // right and bottom delta calculation reversed to account for direction 218 boundsDelta = opBounds.right - mBounds.right; 219 if (!checkSide(currentFlags, newFlags, kClipSide_Right, boundsDelta)) return false; 220 boundsDelta = opBounds.bottom - mBounds.bottom; 221 if (!checkSide(currentFlags, newFlags, kClipSide_Bottom, boundsDelta)) return false; 222 } 223 224 // if paints are equal, then modifiers + paint attribs don't need to be compared 225 if (op->mPaint == mOps[0].op->mPaint) return true; 226 227 if (op->getPaintAlpha() != mOps[0].op->getPaintAlpha()) return false; 228 229 if (op->mPaint && mOps[0].op->mPaint && 230 op->mPaint->getColorFilter() != mOps[0].op->mPaint->getColorFilter()) { 231 return false; 232 } 233 234 if (op->mPaint && mOps[0].op->mPaint && 235 op->mPaint->getShader() != mOps[0].op->mPaint->getShader()) { 236 return false; 237 } 238 239 return true; 240 } 241 242 virtual void add(DrawOp* op, const DeferredDisplayState* state, 243 bool opaqueOverBounds) override { 244 DrawBatch::add(op, state, opaqueOverBounds); 245 246 const int newClipSideFlags = state->mClipSideFlags; 247 mClipSideFlags |= newClipSideFlags; 248 if (newClipSideFlags & kClipSide_Left) mClipRect.left = state->mClip.left; 249 if (newClipSideFlags & kClipSide_Top) mClipRect.top = state->mClip.top; 250 if (newClipSideFlags & kClipSide_Right) mClipRect.right = state->mClip.right; 251 if (newClipSideFlags & kClipSide_Bottom) mClipRect.bottom = state->mClip.bottom; 252 } 253 254 virtual void replay(OpenGLRenderer& renderer, Rect& dirty, int index) override { 255 DEFER_LOGD("%d replaying MergingDrawBatch %p, with %d ops," 256 " clip flags %x (batch id %x, merge id %p)", 257 index, this, mOps.size(), mClipSideFlags, getBatchId(), getMergeId()); 258 if (mOps.size() == 1) { 259 DrawBatch::replay(renderer, dirty, -1); 260 return; 261 } 262 263 // clipping in the merged case is done ahead of time since all ops share the clip (if any) 264 renderer.setupMergedMultiDraw(mClipSideFlags ? &mClipRect : nullptr); 265 266 DrawOp* op = mOps[0].op; 267#if DEBUG_DISPLAY_LIST_OPS_AS_EVENTS 268 renderer.eventMark("multiDraw"); 269 renderer.eventMark(op->name()); 270#endif 271 op->multiDraw(renderer, dirty, mOps, mBounds); 272 273#if DEBUG_MERGE_BEHAVIOR 274 renderer.drawScreenSpaceColorRect(mBounds.left, mBounds.top, mBounds.right, mBounds.bottom, 275 DEBUG_COLOR_MERGEDBATCH); 276#endif 277 } 278 279private: 280 /* 281 * Contains the effective clip rect shared by all merged ops. Initialized to the layer viewport, 282 * it will shrink if an op must be clipped on a certain side. The clipped sides are reflected in 283 * mClipSideFlags. 284 */ 285 Rect mClipRect; 286 int mClipSideFlags; 287}; 288 289class StateOpBatch : public Batch { 290public: 291 // creates a single operation batch 292 StateOpBatch(const StateOp* op, const DeferredDisplayState* state) : mOp(op), mState(state) {} 293 294 virtual void replay(OpenGLRenderer& renderer, Rect& dirty, int index) override { 295 DEFER_LOGD("replaying state op batch %p", this); 296 renderer.restoreDisplayState(*mState); 297 298 // use invalid save count because it won't be used at flush time - RestoreToCountOp is the 299 // only one to use it, and we don't use that class at flush time, instead calling 300 // renderer.restoreToCount directly 301 int saveCount = -1; 302 mOp->applyState(renderer, saveCount); 303 } 304 305private: 306 const StateOp* mOp; 307 const DeferredDisplayState* mState; 308}; 309 310class RestoreToCountBatch : public Batch { 311public: 312 RestoreToCountBatch(const StateOp* op, const DeferredDisplayState* state, int restoreCount) : 313 mState(state), mRestoreCount(restoreCount) {} 314 315 virtual void replay(OpenGLRenderer& renderer, Rect& dirty, int index) override { 316 DEFER_LOGD("batch %p restoring to count %d", this, mRestoreCount); 317 318 renderer.restoreDisplayState(*mState); 319 renderer.restoreToCount(mRestoreCount); 320 } 321 322private: 323 // we use the state storage for the RestoreToCountOp, but don't replay the op itself 324 const DeferredDisplayState* mState; 325 326 /* 327 * The count used here represents the flush() time saveCount. This is as opposed to the 328 * DisplayList record time, or defer() time values (which are RestoreToCountOp's mCount, and 329 * (saveCount + mCount) respectively). Since the count is different from the original 330 * RestoreToCountOp, we don't store a pointer to the op, as elsewhere. 331 */ 332 const int mRestoreCount; 333}; 334 335#if DEBUG_MERGE_BEHAVIOR 336class BarrierDebugBatch : public Batch { 337 virtual void replay(OpenGLRenderer& renderer, Rect& dirty, int index) { 338 renderer.drawScreenSpaceColorRect(0, 0, 10000, 10000, DEBUG_COLOR_BARRIER); 339 } 340}; 341#endif 342 343///////////////////////////////////////////////////////////////////////////////// 344// DeferredDisplayList 345///////////////////////////////////////////////////////////////////////////////// 346 347void DeferredDisplayList::resetBatchingState() { 348 for (int i = 0; i < kOpBatch_Count; i++) { 349 mBatchLookup[i] = nullptr; 350 mMergingBatches[i].clear(); 351 } 352#if DEBUG_MERGE_BEHAVIOR 353 if (mBatches.size() != 0) { 354 mBatches.add(new BarrierDebugBatch()); 355 } 356#endif 357 mEarliestBatchIndex = mBatches.size(); 358} 359 360void DeferredDisplayList::clear() { 361 resetBatchingState(); 362 mComplexClipStackStart = -1; 363 364 for (unsigned int i = 0; i < mBatches.size(); i++) { 365 delete mBatches[i]; 366 } 367 mBatches.clear(); 368 mSaveStack.clear(); 369 mEarliestBatchIndex = 0; 370 mEarliestUnclearedIndex = 0; 371} 372 373///////////////////////////////////////////////////////////////////////////////// 374// Operation adding 375///////////////////////////////////////////////////////////////////////////////// 376 377int DeferredDisplayList::getStateOpDeferFlags() const { 378 // For both clipOp and save(Layer)Op, we don't want to save drawing info, and only want to save 379 // the clip if we aren't recording a complex clip (and can thus trust it to be a rect) 380 return recordingComplexClip() ? 0 : kStateDeferFlag_Clip; 381} 382 383int DeferredDisplayList::getDrawOpDeferFlags() const { 384 return kStateDeferFlag_Draw | getStateOpDeferFlags(); 385} 386 387/** 388 * When an clipping operation occurs that could cause a complex clip, record the operation and all 389 * subsequent clipOps, save/restores (if the clip flag is set). During a flush, instead of loading 390 * the clip from deferred state, we play back all of the relevant state operations that generated 391 * the complex clip. 392 * 393 * Note that we don't need to record the associated restore operation, since operations at defer 394 * time record whether they should store the renderer's current clip 395 */ 396void DeferredDisplayList::addClip(OpenGLRenderer& renderer, ClipOp* op) { 397 if (recordingComplexClip() || op->canCauseComplexClip() || !renderer.hasRectToRectTransform()) { 398 DEFER_LOGD("%p Received complex clip operation %p", this, op); 399 400 // NOTE: defer clip op before setting mComplexClipStackStart so previous clip is recorded 401 storeStateOpBarrier(renderer, op); 402 403 if (!recordingComplexClip()) { 404 mComplexClipStackStart = renderer.getSaveCount() - 1; 405 DEFER_LOGD(" Starting complex clip region, start is %d", mComplexClipStackStart); 406 } 407 } 408} 409 410/** 411 * For now, we record save layer operations as barriers in the batch list, preventing drawing 412 * operations from reordering around the saveLayer and it's associated restore() 413 * 414 * In the future, we should send saveLayer commands (if they can be played out of order) and their 415 * contained drawing operations to a seperate list of batches, so that they may draw at the 416 * beginning of the frame. This would avoid targetting and removing an FBO in the middle of a frame. 417 * 418 * saveLayer operations should be pulled to the beginning of the frame if the canvas doesn't have a 419 * complex clip, and if the flags (kClip_SaveFlag & kClipToLayer_SaveFlag) are set. 420 */ 421void DeferredDisplayList::addSaveLayer(OpenGLRenderer& renderer, 422 SaveLayerOp* op, int newSaveCount) { 423 DEFER_LOGD("%p adding saveLayerOp %p, flags %x, new count %d", 424 this, op, op->getFlags(), newSaveCount); 425 426 storeStateOpBarrier(renderer, op); 427 mSaveStack.push_back(newSaveCount); 428} 429 430/** 431 * Takes save op and it's return value - the new save count - and stores it into the stream as a 432 * barrier if it's needed to properly modify a complex clip 433 */ 434void DeferredDisplayList::addSave(OpenGLRenderer& renderer, SaveOp* op, int newSaveCount) { 435 int saveFlags = op->getFlags(); 436 DEFER_LOGD("%p adding saveOp %p, flags %x, new count %d", this, op, saveFlags, newSaveCount); 437 438 if (recordingComplexClip() && (saveFlags & SkCanvas::kClip_SaveFlag)) { 439 // store and replay the save operation, as it may be needed to correctly playback the clip 440 DEFER_LOGD(" adding save barrier with new save count %d", newSaveCount); 441 storeStateOpBarrier(renderer, op); 442 mSaveStack.push_back(newSaveCount); 443 } 444} 445 446/** 447 * saveLayer() commands must be associated with a restoreToCount batch that will clean up and draw 448 * the layer in the deferred list 449 * 450 * other save() commands which occur as children of a snapshot with complex clip will be deferred, 451 * and must be restored 452 * 453 * Either will act as a barrier to draw operation reordering, as we want to play back layer 454 * save/restore and complex canvas modifications (including save/restore) in order. 455 */ 456void DeferredDisplayList::addRestoreToCount(OpenGLRenderer& renderer, StateOp* op, 457 int newSaveCount) { 458 DEFER_LOGD("%p addRestoreToCount %d", this, newSaveCount); 459 460 if (recordingComplexClip() && newSaveCount <= mComplexClipStackStart) { 461 mComplexClipStackStart = -1; 462 resetBatchingState(); 463 } 464 465 if (mSaveStack.empty() || newSaveCount > mSaveStack.back()) { 466 return; 467 } 468 469 while (!mSaveStack.empty() && mSaveStack.back() >= newSaveCount) mSaveStack.pop_back(); 470 471 storeRestoreToCountBarrier(renderer, op, mSaveStack.size() + FLUSH_SAVE_STACK_DEPTH); 472} 473 474void DeferredDisplayList::addDrawOp(OpenGLRenderer& renderer, DrawOp* op) { 475 /* 1: op calculates local bounds */ 476 DeferredDisplayState* const state = createState(); 477 if (op->getLocalBounds(state->mBounds)) { 478 if (state->mBounds.isEmpty()) { 479 // valid empty bounds, don't bother deferring 480 tryRecycleState(state); 481 return; 482 } 483 } else { 484 state->mBounds.setEmpty(); 485 } 486 487 /* 2: renderer calculates global bounds + stores state */ 488 if (renderer.storeDisplayState(*state, getDrawOpDeferFlags())) { 489 tryRecycleState(state); 490 return; // quick rejected 491 } 492 493 /* 3: ask op for defer info, given renderer state */ 494 DeferInfo deferInfo; 495 op->onDefer(renderer, deferInfo, *state); 496 497 // complex clip has a complex set of expectations on the renderer state - for now, avoid taking 498 // the merge path in those cases 499 deferInfo.mergeable &= !recordingComplexClip(); 500 deferInfo.opaqueOverBounds &= !recordingComplexClip() 501 && mSaveStack.empty() 502 && !state->mRoundRectClipState; 503 504 if (CC_LIKELY(avoidOverdraw()) && mBatches.size() && 505 state->mClipSideFlags != kClipSide_ConservativeFull && 506 deferInfo.opaqueOverBounds && state->mBounds.contains(mBounds)) { 507 // avoid overdraw by resetting drawing state + discarding drawing ops 508 discardDrawingBatches(mBatches.size() - 1); 509 resetBatchingState(); 510 } 511 512 if (CC_UNLIKELY(Properties::drawReorderDisabled)) { 513 // TODO: elegant way to reuse batches? 514 DrawBatch* b = new DrawBatch(deferInfo); 515 b->add(op, state, deferInfo.opaqueOverBounds); 516 mBatches.push_back(b); 517 return; 518 } 519 520 // find the latest batch of the new op's type, and try to merge the new op into it 521 DrawBatch* targetBatch = nullptr; 522 523 // insertion point of a new batch, will hopefully be immediately after similar batch 524 // (eventually, should be similar shader) 525 int insertBatchIndex = mBatches.size(); 526 if (!mBatches.empty()) { 527 if (state->mBounds.isEmpty()) { 528 // don't know the bounds for op, so add to last batch and start from scratch on next op 529 DrawBatch* b = new DrawBatch(deferInfo); 530 b->add(op, state, deferInfo.opaqueOverBounds); 531 mBatches.push_back(b); 532 resetBatchingState(); 533#if DEBUG_DEFER 534 DEFER_LOGD("Warning: Encountered op with empty bounds, resetting batches"); 535 op->output(2); 536#endif 537 return; 538 } 539 540 if (deferInfo.mergeable) { 541 // Try to merge with any existing batch with same mergeId. 542 if (mMergingBatches[deferInfo.batchId].get(deferInfo.mergeId, targetBatch)) { 543 if (!((MergingDrawBatch*) targetBatch)->canMergeWith(op, state)) { 544 targetBatch = nullptr; 545 } 546 } 547 } else { 548 // join with similar, non-merging batch 549 targetBatch = (DrawBatch*)mBatchLookup[deferInfo.batchId]; 550 } 551 552 if (targetBatch || deferInfo.mergeable) { 553 // iterate back toward target to see if anything drawn since should overlap the new op 554 // if no target, merging ops still interate to find similar batch to insert after 555 for (int i = mBatches.size() - 1; i >= mEarliestBatchIndex; i--) { 556 DrawBatch* overBatch = (DrawBatch*)mBatches[i]; 557 558 if (overBatch == targetBatch) break; 559 560 // TODO: also consider shader shared between batch types 561 if (deferInfo.batchId == overBatch->getBatchId()) { 562 insertBatchIndex = i + 1; 563 if (!targetBatch) break; // found insert position, quit 564 } 565 566 if (overBatch->intersects(state->mBounds)) { 567 // NOTE: it may be possible to optimize for special cases where two operations 568 // of the same batch/paint could swap order, such as with a non-mergeable 569 // (clipped) and a mergeable text operation 570 targetBatch = nullptr; 571#if DEBUG_DEFER 572 DEFER_LOGD("op couldn't join batch %p, was intersected by batch %d", 573 targetBatch, i); 574 op->output(2); 575#endif 576 break; 577 } 578 } 579 } 580 } 581 582 if (!targetBatch) { 583 if (deferInfo.mergeable) { 584 targetBatch = new MergingDrawBatch(deferInfo, 585 renderer.getViewportWidth(), renderer.getViewportHeight()); 586 mMergingBatches[deferInfo.batchId].put(deferInfo.mergeId, targetBatch); 587 } else { 588 targetBatch = new DrawBatch(deferInfo); 589 mBatchLookup[deferInfo.batchId] = targetBatch; 590 } 591 592 DEFER_LOGD("creating %singBatch %p, bid %x, at %d", 593 deferInfo.mergeable ? "Merg" : "Draw", 594 targetBatch, deferInfo.batchId, insertBatchIndex); 595 mBatches.insert(mBatches.begin() + insertBatchIndex, targetBatch); 596 } 597 598 targetBatch->add(op, state, deferInfo.opaqueOverBounds); 599} 600 601void DeferredDisplayList::storeStateOpBarrier(OpenGLRenderer& renderer, StateOp* op) { 602 DEFER_LOGD("%p adding state op barrier at pos %d", this, mBatches.size()); 603 604 DeferredDisplayState* state = createState(); 605 renderer.storeDisplayState(*state, getStateOpDeferFlags()); 606 mBatches.push_back(new StateOpBatch(op, state)); 607 resetBatchingState(); 608} 609 610void DeferredDisplayList::storeRestoreToCountBarrier(OpenGLRenderer& renderer, StateOp* op, 611 int newSaveCount) { 612 DEFER_LOGD("%p adding restore to count %d barrier, pos %d", 613 this, newSaveCount, mBatches.size()); 614 615 // store displayState for the restore operation, as it may be associated with a saveLayer that 616 // doesn't have kClip_SaveFlag set 617 DeferredDisplayState* state = createState(); 618 renderer.storeDisplayState(*state, getStateOpDeferFlags()); 619 mBatches.push_back(new RestoreToCountBatch(op, state, newSaveCount)); 620 resetBatchingState(); 621} 622 623///////////////////////////////////////////////////////////////////////////////// 624// Replay / flush 625///////////////////////////////////////////////////////////////////////////////// 626 627static void replayBatchList(const std::vector<Batch*>& batchList, 628 OpenGLRenderer& renderer, Rect& dirty) { 629 630 for (unsigned int i = 0; i < batchList.size(); i++) { 631 if (batchList[i]) { 632 batchList[i]->replay(renderer, dirty, i); 633 } 634 } 635 DEFER_LOGD("--flushed, drew %d batches", batchList.size()); 636} 637 638void DeferredDisplayList::flush(OpenGLRenderer& renderer, Rect& dirty) { 639 ATRACE_NAME("flush drawing commands"); 640 Caches::getInstance().fontRenderer.endPrecaching(); 641 642 if (isEmpty()) return; // nothing to flush 643 renderer.restoreToCount(1); 644 645 DEFER_LOGD("--flushing"); 646 renderer.eventMark("Flush"); 647 648 // save and restore so that reordering doesn't affect final state 649 renderer.save(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 650 651 if (CC_LIKELY(avoidOverdraw())) { 652 for (unsigned int i = 1; i < mBatches.size(); i++) { 653 if (mBatches[i] && mBatches[i]->coversBounds(mBounds)) { 654 discardDrawingBatches(i - 1); 655 } 656 } 657 } 658 // NOTE: depth of the save stack at this point, before playback, should be reflected in 659 // FLUSH_SAVE_STACK_DEPTH, so that save/restores match up correctly 660 replayBatchList(mBatches, renderer, dirty); 661 662 renderer.restoreToCount(1); 663 664 DEFER_LOGD("--flush complete, returning %x", status); 665 clear(); 666} 667 668void DeferredDisplayList::discardDrawingBatches(const unsigned int maxIndex) { 669 for (unsigned int i = mEarliestUnclearedIndex; i <= maxIndex; i++) { 670 // leave deferred state ops alone for simplicity (empty save restore pairs may now exist) 671 if (mBatches[i] && mBatches[i]->purelyDrawBatch()) { 672 delete mBatches[i]; 673 mBatches[i] = nullptr; 674 } 675 } 676 mEarliestUnclearedIndex = maxIndex + 1; 677} 678 679}; // namespace uirenderer 680}; // namespace android 681