DeferredDisplayList.cpp revision d41c4d8c732095ae99c955b6b82f7306633004b1
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#define LOG_TAG "OpenGLRenderer" 18#define ATRACE_TAG ATRACE_TAG_VIEW 19 20#include <SkCanvas.h> 21 22#include <utils/Trace.h> 23#include <ui/Rect.h> 24#include <ui/Region.h> 25 26#include "Caches.h" 27#include "Debug.h" 28#include "DeferredDisplayList.h" 29#include "DisplayListOp.h" 30#include "OpenGLRenderer.h" 31#include "utils/MathUtils.h" 32 33#if DEBUG_DEFER 34 #define DEFER_LOGD(...) ALOGD(__VA_ARGS__) 35#else 36 #define DEFER_LOGD(...) 37#endif 38 39namespace android { 40namespace uirenderer { 41 42// Depth of the save stack at the beginning of batch playback at flush time 43#define FLUSH_SAVE_STACK_DEPTH 2 44 45#define DEBUG_COLOR_BARRIER 0x1f000000 46#define DEBUG_COLOR_MERGEDBATCH 0x5f7f7fff 47#define DEBUG_COLOR_MERGEDBATCH_SOLO 0x5f7fff7f 48 49///////////////////////////////////////////////////////////////////////////////// 50// Operation Batches 51///////////////////////////////////////////////////////////////////////////////// 52 53class Batch { 54public: 55 virtual void replay(OpenGLRenderer& renderer, Rect& dirty, int index) = 0; 56 virtual ~Batch() {} 57 virtual bool purelyDrawBatch() { return false; } 58 virtual bool coversBounds(const Rect& bounds) { return false; } 59}; 60 61class DrawBatch : public Batch { 62public: 63 DrawBatch(const DeferInfo& deferInfo) : mAllOpsOpaque(true), 64 mBatchId(deferInfo.batchId), mMergeId(deferInfo.mergeId) { 65 mOps.clear(); 66 } 67 68 virtual ~DrawBatch() { mOps.clear(); } 69 70 virtual void add(DrawOp* op, const DeferredDisplayState* state, bool opaqueOverBounds) { 71 // NOTE: ignore empty bounds special case, since we don't merge across those ops 72 mBounds.unionWith(state->mBounds); 73 mAllOpsOpaque &= opaqueOverBounds; 74 mOps.add(OpStatePair(op, state)); 75 } 76 77 bool intersects(const Rect& rect) { 78 if (!rect.intersects(mBounds)) return false; 79 80 for (unsigned int i = 0; i < mOps.size(); i++) { 81 if (rect.intersects(mOps[i].state->mBounds)) { 82#if DEBUG_DEFER 83 DEFER_LOGD("op intersects with op %p with bounds %f %f %f %f:", mOps[i].op, 84 mOps[i].state->mBounds.left, mOps[i].state->mBounds.top, 85 mOps[i].state->mBounds.right, mOps[i].state->mBounds.bottom); 86 mOps[i].op->output(2); 87#endif 88 return true; 89 } 90 } 91 return false; 92 } 93 94 virtual void replay(OpenGLRenderer& renderer, Rect& dirty, int index) override { 95 DEFER_LOGD("%d replaying DrawBatch %p, with %d ops (batch id %x, merge id %p)", 96 index, this, mOps.size(), getBatchId(), getMergeId()); 97 98 DisplayListLogBuffer& logBuffer = DisplayListLogBuffer::getInstance(); 99 for (unsigned int i = 0; i < mOps.size(); i++) { 100 DrawOp* op = mOps[i].op; 101 const DeferredDisplayState* state = mOps[i].state; 102 renderer.restoreDisplayState(*state); 103 104#if DEBUG_DISPLAY_LIST_OPS_AS_EVENTS 105 renderer.eventMark(op->name()); 106#endif 107 logBuffer.writeCommand(0, op->name()); 108 op->applyDraw(renderer, dirty); 109 110#if DEBUG_MERGE_BEHAVIOR 111 const Rect& bounds = state->mBounds; 112 int batchColor = 0x1f000000; 113 if (getBatchId() & 0x1) batchColor |= 0x0000ff; 114 if (getBatchId() & 0x2) batchColor |= 0x00ff00; 115 if (getBatchId() & 0x4) batchColor |= 0xff0000; 116 renderer.drawScreenSpaceColorRect(bounds.left, bounds.top, bounds.right, bounds.bottom, 117 batchColor); 118#endif 119 } 120 } 121 122 virtual bool purelyDrawBatch() override { return true; } 123 124 virtual bool coversBounds(const Rect& bounds) override { 125 if (CC_LIKELY(!mAllOpsOpaque || !mBounds.contains(bounds) || count() == 1)) return false; 126 127 Region uncovered(android::Rect(bounds.left, bounds.top, bounds.right, bounds.bottom)); 128 for (unsigned int i = 0; i < mOps.size(); i++) { 129 const Rect &r = mOps[i].state->mBounds; 130 uncovered.subtractSelf(android::Rect(r.left, r.top, r.right, r.bottom)); 131 } 132 return uncovered.isEmpty(); 133 } 134 135 inline int getBatchId() const { return mBatchId; } 136 inline mergeid_t getMergeId() const { return mMergeId; } 137 inline int count() const { return mOps.size(); } 138 139protected: 140 Vector<OpStatePair> mOps; 141 Rect mBounds; // union of bounds of contained ops 142private: 143 bool mAllOpsOpaque; 144 int mBatchId; 145 mergeid_t mMergeId; 146}; 147 148class MergingDrawBatch : public DrawBatch { 149public: 150 MergingDrawBatch(DeferInfo& deferInfo, int width, int height) : 151 DrawBatch(deferInfo), mClipRect(width, height), 152 mClipSideFlags(kClipSide_None) {} 153 154 /* 155 * Helper for determining if a new op can merge with a MergingDrawBatch based on their bounds 156 * and clip side flags. Positive bounds delta means new bounds fit in old. 157 */ 158 static inline bool checkSide(const int currentFlags, const int newFlags, const int side, 159 float boundsDelta) { 160 bool currentClipExists = currentFlags & side; 161 bool newClipExists = newFlags & side; 162 163 // if current is clipped, we must be able to fit new bounds in current 164 if (boundsDelta > 0 && currentClipExists) return false; 165 166 // if new is clipped, we must be able to fit current bounds in new 167 if (boundsDelta < 0 && newClipExists) return false; 168 169 return true; 170 } 171 172 /* 173 * Checks if a (mergeable) op can be merged into this batch 174 * 175 * If true, the op's multiDraw must be guaranteed to handle both ops simultaneously, so it is 176 * important to consider all paint attributes used in the draw calls in deciding both a) if an 177 * op tries to merge at all, and b) if the op can merge with another set of ops 178 * 179 * False positives can lead to information from the paints of subsequent merged operations being 180 * dropped, so we make simplifying qualifications on the ops that can merge, per op type. 181 */ 182 bool canMergeWith(const DrawOp* op, const DeferredDisplayState* state) { 183 bool isTextBatch = getBatchId() == DeferredDisplayList::kOpBatch_Text || 184 getBatchId() == DeferredDisplayList::kOpBatch_ColorText; 185 186 // Overlapping other operations is only allowed for text without shadow. For other ops, 187 // multiDraw isn't guaranteed to overdraw correctly 188 if (!isTextBatch || op->hasTextShadow()) { 189 if (intersects(state->mBounds)) return false; 190 } 191 const DeferredDisplayState* lhs = state; 192 const DeferredDisplayState* rhs = mOps[0].state; 193 194 if (!MathUtils::areEqual(lhs->mAlpha, rhs->mAlpha)) return false; 195 196 // Identical round rect clip state means both ops will clip in the same way, or not at all. 197 // As the state objects are const, we can compare their pointers to determine mergeability 198 if (lhs->mRoundRectClipState != rhs->mRoundRectClipState) return false; 199 200 /* Clipping compatibility check 201 * 202 * Exploits the fact that if a op or batch is clipped on a side, its bounds will equal its 203 * clip for that side. 204 */ 205 const int currentFlags = mClipSideFlags; 206 const int newFlags = state->mClipSideFlags; 207 if (currentFlags != kClipSide_None || newFlags != kClipSide_None) { 208 const Rect& opBounds = state->mBounds; 209 float boundsDelta = mBounds.left - opBounds.left; 210 if (!checkSide(currentFlags, newFlags, kClipSide_Left, boundsDelta)) return false; 211 boundsDelta = mBounds.top - opBounds.top; 212 if (!checkSide(currentFlags, newFlags, kClipSide_Top, boundsDelta)) return false; 213 214 // right and bottom delta calculation reversed to account for direction 215 boundsDelta = opBounds.right - mBounds.right; 216 if (!checkSide(currentFlags, newFlags, kClipSide_Right, boundsDelta)) return false; 217 boundsDelta = opBounds.bottom - mBounds.bottom; 218 if (!checkSide(currentFlags, newFlags, kClipSide_Bottom, boundsDelta)) return false; 219 } 220 221 // if paints are equal, then modifiers + paint attribs don't need to be compared 222 if (op->mPaint == mOps[0].op->mPaint) return true; 223 224 if (op->getPaintAlpha() != mOps[0].op->getPaintAlpha()) return false; 225 226 if (op->mPaint && mOps[0].op->mPaint && 227 op->mPaint->getColorFilter() != mOps[0].op->mPaint->getColorFilter()) { 228 return false; 229 } 230 231 if (op->mPaint && mOps[0].op->mPaint && 232 op->mPaint->getShader() != mOps[0].op->mPaint->getShader()) { 233 return false; 234 } 235 236 return true; 237 } 238 239 virtual void add(DrawOp* op, const DeferredDisplayState* state, 240 bool opaqueOverBounds) override { 241 DrawBatch::add(op, state, opaqueOverBounds); 242 243 const int newClipSideFlags = state->mClipSideFlags; 244 mClipSideFlags |= newClipSideFlags; 245 if (newClipSideFlags & kClipSide_Left) mClipRect.left = state->mClip.left; 246 if (newClipSideFlags & kClipSide_Top) mClipRect.top = state->mClip.top; 247 if (newClipSideFlags & kClipSide_Right) mClipRect.right = state->mClip.right; 248 if (newClipSideFlags & kClipSide_Bottom) mClipRect.bottom = state->mClip.bottom; 249 } 250 251 virtual void replay(OpenGLRenderer& renderer, Rect& dirty, int index) override { 252 DEFER_LOGD("%d replaying MergingDrawBatch %p, with %d ops," 253 " clip flags %x (batch id %x, merge id %p)", 254 index, this, mOps.size(), mClipSideFlags, getBatchId(), getMergeId()); 255 if (mOps.size() == 1) { 256 DrawBatch::replay(renderer, dirty, -1); 257 return; 258 } 259 260 // clipping in the merged case is done ahead of time since all ops share the clip (if any) 261 renderer.setupMergedMultiDraw(mClipSideFlags ? &mClipRect : nullptr); 262 263 DrawOp* op = mOps[0].op; 264 DisplayListLogBuffer& buffer = DisplayListLogBuffer::getInstance(); 265 buffer.writeCommand(0, "multiDraw"); 266 buffer.writeCommand(1, op->name()); 267 268#if DEBUG_DISPLAY_LIST_OPS_AS_EVENTS 269 renderer.eventMark("multiDraw"); 270 renderer.eventMark(op->name()); 271#endif 272 op->multiDraw(renderer, dirty, mOps, mBounds); 273 274#if DEBUG_MERGE_BEHAVIOR 275 renderer.drawScreenSpaceColorRect(mBounds.left, mBounds.top, mBounds.right, mBounds.bottom, 276 DEBUG_COLOR_MERGEDBATCH); 277#endif 278 } 279 280private: 281 /* 282 * Contains the effective clip rect shared by all merged ops. Initialized to the layer viewport, 283 * it will shrink if an op must be clipped on a certain side. The clipped sides are reflected in 284 * mClipSideFlags. 285 */ 286 Rect mClipRect; 287 int mClipSideFlags; 288}; 289 290class StateOpBatch : public Batch { 291public: 292 // creates a single operation batch 293 StateOpBatch(const StateOp* op, const DeferredDisplayState* state) : mOp(op), mState(state) {} 294 295 virtual void replay(OpenGLRenderer& renderer, Rect& dirty, int index) override { 296 DEFER_LOGD("replaying state op batch %p", this); 297 renderer.restoreDisplayState(*mState); 298 299 // use invalid save count because it won't be used at flush time - RestoreToCountOp is the 300 // only one to use it, and we don't use that class at flush time, instead calling 301 // renderer.restoreToCount directly 302 int saveCount = -1; 303 mOp->applyState(renderer, saveCount); 304 } 305 306private: 307 const StateOp* mOp; 308 const DeferredDisplayState* mState; 309}; 310 311class RestoreToCountBatch : public Batch { 312public: 313 RestoreToCountBatch(const StateOp* op, const DeferredDisplayState* state, int restoreCount) : 314 mState(state), mRestoreCount(restoreCount) {} 315 316 virtual void replay(OpenGLRenderer& renderer, Rect& dirty, int index) override { 317 DEFER_LOGD("batch %p restoring to count %d", this, mRestoreCount); 318 319 renderer.restoreDisplayState(*mState); 320 renderer.restoreToCount(mRestoreCount); 321 } 322 323private: 324 // we use the state storage for the RestoreToCountOp, but don't replay the op itself 325 const DeferredDisplayState* mState; 326 327 /* 328 * The count used here represents the flush() time saveCount. This is as opposed to the 329 * DisplayList record time, or defer() time values (which are RestoreToCountOp's mCount, and 330 * (saveCount + mCount) respectively). Since the count is different from the original 331 * RestoreToCountOp, we don't store a pointer to the op, as elsewhere. 332 */ 333 const int mRestoreCount; 334}; 335 336#if DEBUG_MERGE_BEHAVIOR 337class BarrierDebugBatch : public Batch { 338 virtual void replay(OpenGLRenderer& renderer, Rect& dirty, int index) { 339 renderer.drawScreenSpaceColorRect(0, 0, 10000, 10000, DEBUG_COLOR_BARRIER); 340 } 341}; 342#endif 343 344///////////////////////////////////////////////////////////////////////////////// 345// DeferredDisplayList 346///////////////////////////////////////////////////////////////////////////////// 347 348void DeferredDisplayList::resetBatchingState() { 349 for (int i = 0; i < kOpBatch_Count; i++) { 350 mBatchLookup[i] = nullptr; 351 mMergingBatches[i].clear(); 352 } 353#if DEBUG_MERGE_BEHAVIOR 354 if (mBatches.size() != 0) { 355 mBatches.add(new BarrierDebugBatch()); 356 } 357#endif 358 mEarliestBatchIndex = mBatches.size(); 359} 360 361void DeferredDisplayList::clear() { 362 resetBatchingState(); 363 mComplexClipStackStart = -1; 364 365 for (unsigned int i = 0; i < mBatches.size(); i++) { 366 delete mBatches[i]; 367 } 368 mBatches.clear(); 369 mSaveStack.clear(); 370 mEarliestBatchIndex = 0; 371 mEarliestUnclearedIndex = 0; 372} 373 374///////////////////////////////////////////////////////////////////////////////// 375// Operation adding 376///////////////////////////////////////////////////////////////////////////////// 377 378int DeferredDisplayList::getStateOpDeferFlags() const { 379 // For both clipOp and save(Layer)Op, we don't want to save drawing info, and only want to save 380 // the clip if we aren't recording a complex clip (and can thus trust it to be a rect) 381 return recordingComplexClip() ? 0 : kStateDeferFlag_Clip; 382} 383 384int DeferredDisplayList::getDrawOpDeferFlags() const { 385 return kStateDeferFlag_Draw | getStateOpDeferFlags(); 386} 387 388/** 389 * When an clipping operation occurs that could cause a complex clip, record the operation and all 390 * subsequent clipOps, save/restores (if the clip flag is set). During a flush, instead of loading 391 * the clip from deferred state, we play back all of the relevant state operations that generated 392 * the complex clip. 393 * 394 * Note that we don't need to record the associated restore operation, since operations at defer 395 * time record whether they should store the renderer's current clip 396 */ 397void DeferredDisplayList::addClip(OpenGLRenderer& renderer, ClipOp* op) { 398 if (recordingComplexClip() || op->canCauseComplexClip() || !renderer.hasRectToRectTransform()) { 399 DEFER_LOGD("%p Received complex clip operation %p", this, op); 400 401 // NOTE: defer clip op before setting mComplexClipStackStart so previous clip is recorded 402 storeStateOpBarrier(renderer, op); 403 404 if (!recordingComplexClip()) { 405 mComplexClipStackStart = renderer.getSaveCount() - 1; 406 DEFER_LOGD(" Starting complex clip region, start is %d", mComplexClipStackStart); 407 } 408 } 409} 410 411/** 412 * For now, we record save layer operations as barriers in the batch list, preventing drawing 413 * operations from reordering around the saveLayer and it's associated restore() 414 * 415 * In the future, we should send saveLayer commands (if they can be played out of order) and their 416 * contained drawing operations to a seperate list of batches, so that they may draw at the 417 * beginning of the frame. This would avoid targetting and removing an FBO in the middle of a frame. 418 * 419 * saveLayer operations should be pulled to the beginning of the frame if the canvas doesn't have a 420 * complex clip, and if the flags (kClip_SaveFlag & kClipToLayer_SaveFlag) are set. 421 */ 422void DeferredDisplayList::addSaveLayer(OpenGLRenderer& renderer, 423 SaveLayerOp* op, int newSaveCount) { 424 DEFER_LOGD("%p adding saveLayerOp %p, flags %x, new count %d", 425 this, op, op->getFlags(), newSaveCount); 426 427 storeStateOpBarrier(renderer, op); 428 mSaveStack.push(newSaveCount); 429} 430 431/** 432 * Takes save op and it's return value - the new save count - and stores it into the stream as a 433 * barrier if it's needed to properly modify a complex clip 434 */ 435void DeferredDisplayList::addSave(OpenGLRenderer& renderer, SaveOp* op, int newSaveCount) { 436 int saveFlags = op->getFlags(); 437 DEFER_LOGD("%p adding saveOp %p, flags %x, new count %d", this, op, saveFlags, newSaveCount); 438 439 if (recordingComplexClip() && (saveFlags & SkCanvas::kClip_SaveFlag)) { 440 // store and replay the save operation, as it may be needed to correctly playback the clip 441 DEFER_LOGD(" adding save barrier with new save count %d", newSaveCount); 442 storeStateOpBarrier(renderer, op); 443 mSaveStack.push(newSaveCount); 444 } 445} 446 447/** 448 * saveLayer() commands must be associated with a restoreToCount batch that will clean up and draw 449 * the layer in the deferred list 450 * 451 * other save() commands which occur as children of a snapshot with complex clip will be deferred, 452 * and must be restored 453 * 454 * Either will act as a barrier to draw operation reordering, as we want to play back layer 455 * save/restore and complex canvas modifications (including save/restore) in order. 456 */ 457void DeferredDisplayList::addRestoreToCount(OpenGLRenderer& renderer, StateOp* op, 458 int newSaveCount) { 459 DEFER_LOGD("%p addRestoreToCount %d", this, newSaveCount); 460 461 if (recordingComplexClip() && newSaveCount <= mComplexClipStackStart) { 462 mComplexClipStackStart = -1; 463 resetBatchingState(); 464 } 465 466 if (mSaveStack.isEmpty() || newSaveCount > mSaveStack.top()) { 467 return; 468 } 469 470 while (!mSaveStack.isEmpty() && mSaveStack.top() >= newSaveCount) mSaveStack.pop(); 471 472 storeRestoreToCountBarrier(renderer, op, mSaveStack.size() + FLUSH_SAVE_STACK_DEPTH); 473} 474 475void DeferredDisplayList::addDrawOp(OpenGLRenderer& renderer, DrawOp* op) { 476 /* 1: op calculates local bounds */ 477 DeferredDisplayState* const state = createState(); 478 if (op->getLocalBounds(state->mBounds)) { 479 if (state->mBounds.isEmpty()) { 480 // valid empty bounds, don't bother deferring 481 tryRecycleState(state); 482 return; 483 } 484 } else { 485 state->mBounds.setEmpty(); 486 } 487 488 /* 2: renderer calculates global bounds + stores state */ 489 if (renderer.storeDisplayState(*state, getDrawOpDeferFlags())) { 490 tryRecycleState(state); 491 return; // quick rejected 492 } 493 494 /* 3: ask op for defer info, given renderer state */ 495 DeferInfo deferInfo; 496 op->onDefer(renderer, deferInfo, *state); 497 498 // complex clip has a complex set of expectations on the renderer state - for now, avoid taking 499 // the merge path in those cases 500 deferInfo.mergeable &= !recordingComplexClip(); 501 deferInfo.opaqueOverBounds &= !recordingComplexClip() && mSaveStack.isEmpty(); 502 503 if (CC_LIKELY(mAvoidOverdraw) && mBatches.size() && 504 state->mClipSideFlags != kClipSide_ConservativeFull && 505 deferInfo.opaqueOverBounds && state->mBounds.contains(mBounds)) { 506 // avoid overdraw by resetting drawing state + discarding drawing ops 507 discardDrawingBatches(mBatches.size() - 1); 508 resetBatchingState(); 509 } 510 511 if (CC_UNLIKELY(renderer.getCaches().drawReorderDisabled)) { 512 // TODO: elegant way to reuse batches? 513 DrawBatch* b = new DrawBatch(deferInfo); 514 b->add(op, state, deferInfo.opaqueOverBounds); 515 mBatches.add(b); 516 return; 517 } 518 519 // find the latest batch of the new op's type, and try to merge the new op into it 520 DrawBatch* targetBatch = nullptr; 521 522 // insertion point of a new batch, will hopefully be immediately after similar batch 523 // (eventually, should be similar shader) 524 int insertBatchIndex = mBatches.size(); 525 if (!mBatches.isEmpty()) { 526 if (state->mBounds.isEmpty()) { 527 // don't know the bounds for op, so add to last batch and start from scratch on next op 528 DrawBatch* b = new DrawBatch(deferInfo); 529 b->add(op, state, deferInfo.opaqueOverBounds); 530 mBatches.add(b); 531 resetBatchingState(); 532#if DEBUG_DEFER 533 DEFER_LOGD("Warning: Encountered op with empty bounds, resetting batches"); 534 op->output(2); 535#endif 536 return; 537 } 538 539 if (deferInfo.mergeable) { 540 // Try to merge with any existing batch with same mergeId. 541 if (mMergingBatches[deferInfo.batchId].get(deferInfo.mergeId, targetBatch)) { 542 if (!((MergingDrawBatch*) targetBatch)->canMergeWith(op, state)) { 543 targetBatch = nullptr; 544 } 545 } 546 } else { 547 // join with similar, non-merging batch 548 targetBatch = (DrawBatch*)mBatchLookup[deferInfo.batchId]; 549 } 550 551 if (targetBatch || deferInfo.mergeable) { 552 // iterate back toward target to see if anything drawn since should overlap the new op 553 // if no target, merging ops still interate to find similar batch to insert after 554 for (int i = mBatches.size() - 1; i >= mEarliestBatchIndex; i--) { 555 DrawBatch* overBatch = (DrawBatch*)mBatches[i]; 556 557 if (overBatch == targetBatch) break; 558 559 // TODO: also consider shader shared between batch types 560 if (deferInfo.batchId == overBatch->getBatchId()) { 561 insertBatchIndex = i + 1; 562 if (!targetBatch) break; // found insert position, quit 563 } 564 565 if (overBatch->intersects(state->mBounds)) { 566 // NOTE: it may be possible to optimize for special cases where two operations 567 // of the same batch/paint could swap order, such as with a non-mergeable 568 // (clipped) and a mergeable text operation 569 targetBatch = nullptr; 570#if DEBUG_DEFER 571 DEFER_LOGD("op couldn't join batch %p, was intersected by batch %d", 572 targetBatch, i); 573 op->output(2); 574#endif 575 break; 576 } 577 } 578 } 579 } 580 581 if (!targetBatch) { 582 if (deferInfo.mergeable) { 583 targetBatch = new MergingDrawBatch(deferInfo, 584 renderer.getViewportWidth(), renderer.getViewportHeight()); 585 mMergingBatches[deferInfo.batchId].put(deferInfo.mergeId, targetBatch); 586 } else { 587 targetBatch = new DrawBatch(deferInfo); 588 mBatchLookup[deferInfo.batchId] = targetBatch; 589 } 590 591 DEFER_LOGD("creating %singBatch %p, bid %x, at %d", 592 deferInfo.mergeable ? "Merg" : "Draw", 593 targetBatch, deferInfo.batchId, insertBatchIndex); 594 mBatches.insertAt(targetBatch, insertBatchIndex); 595 } 596 597 targetBatch->add(op, state, deferInfo.opaqueOverBounds); 598} 599 600void DeferredDisplayList::storeStateOpBarrier(OpenGLRenderer& renderer, StateOp* op) { 601 DEFER_LOGD("%p adding state op barrier at pos %d", this, mBatches.size()); 602 603 DeferredDisplayState* state = createState(); 604 renderer.storeDisplayState(*state, getStateOpDeferFlags()); 605 mBatches.add(new StateOpBatch(op, state)); 606 resetBatchingState(); 607} 608 609void DeferredDisplayList::storeRestoreToCountBarrier(OpenGLRenderer& renderer, StateOp* op, 610 int newSaveCount) { 611 DEFER_LOGD("%p adding restore to count %d barrier, pos %d", 612 this, newSaveCount, mBatches.size()); 613 614 // store displayState for the restore operation, as it may be associated with a saveLayer that 615 // doesn't have kClip_SaveFlag set 616 DeferredDisplayState* state = createState(); 617 renderer.storeDisplayState(*state, getStateOpDeferFlags()); 618 mBatches.add(new RestoreToCountBatch(op, state, newSaveCount)); 619 resetBatchingState(); 620} 621 622///////////////////////////////////////////////////////////////////////////////// 623// Replay / flush 624///////////////////////////////////////////////////////////////////////////////// 625 626static void replayBatchList(const Vector<Batch*>& batchList, 627 OpenGLRenderer& renderer, Rect& dirty) { 628 629 for (unsigned int i = 0; i < batchList.size(); i++) { 630 if (batchList[i]) { 631 batchList[i]->replay(renderer, dirty, i); 632 } 633 } 634 DEFER_LOGD("--flushed, drew %d batches", batchList.size()); 635} 636 637void DeferredDisplayList::flush(OpenGLRenderer& renderer, Rect& dirty) { 638 ATRACE_NAME("flush drawing commands"); 639 Caches::getInstance().fontRenderer->endPrecaching(); 640 641 if (isEmpty()) return; // nothing to flush 642 renderer.restoreToCount(1); 643 644 DEFER_LOGD("--flushing"); 645 renderer.eventMark("Flush"); 646 647 // save and restore (with draw modifiers) so that reordering doesn't affect final state 648 DrawModifiers restoreDrawModifiers = renderer.getDrawModifiers(); 649 renderer.save(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 650 651 if (CC_LIKELY(mAvoidOverdraw)) { 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 renderer.setDrawModifiers(restoreDrawModifiers); 664 665 DEFER_LOGD("--flush complete, returning %x", status); 666 clear(); 667} 668 669void DeferredDisplayList::discardDrawingBatches(const unsigned int maxIndex) { 670 for (unsigned int i = mEarliestUnclearedIndex; i <= maxIndex; i++) { 671 // leave deferred state ops alone for simplicity (empty save restore pairs may now exist) 672 if (mBatches[i] && mBatches[i]->purelyDrawBatch()) { 673 delete mBatches[i]; 674 mBatches.replaceAt(nullptr, i); 675 } 676 } 677 mEarliestUnclearedIndex = maxIndex + 1; 678} 679 680}; // namespace uirenderer 681}; // namespace android 682