DeferredDisplayList.cpp revision 36d38cb904556025b76c6d98f9fe2ccfa1c8a304
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 32#if DEBUG_DEFER 33 #define DEFER_LOGD(...) ALOGD(__VA_ARGS__) 34#else 35 #define DEFER_LOGD(...) 36#endif 37 38namespace android { 39namespace uirenderer { 40 41// Depth of the save stack at the beginning of batch playback at flush time 42#define FLUSH_SAVE_STACK_DEPTH 2 43 44#define DEBUG_COLOR_BARRIER 0x1f000000 45#define DEBUG_COLOR_MERGEDBATCH 0x5f7f7fff 46#define DEBUG_COLOR_MERGEDBATCH_SOLO 0x5f7fff7f 47 48///////////////////////////////////////////////////////////////////////////////// 49// Operation Batches 50///////////////////////////////////////////////////////////////////////////////// 51 52class Batch { 53public: 54 virtual status_t replay(OpenGLRenderer& renderer, Rect& dirty, int index) = 0; 55 virtual ~Batch() {} 56 virtual bool purelyDrawBatch() { return false; } 57 virtual bool coversBounds(const Rect& bounds) { return false; } 58}; 59 60class DrawBatch : public Batch { 61public: 62 DrawBatch(const DeferInfo& deferInfo) : mAllOpsOpaque(true), 63 mBatchId(deferInfo.batchId), mMergeId(deferInfo.mergeId) { 64 mOps.clear(); 65 } 66 67 virtual ~DrawBatch() { mOps.clear(); } 68 69 virtual void add(DrawOp* op, bool opaqueOverBounds) { 70 // NOTE: ignore empty bounds special case, since we don't merge across those ops 71 mBounds.unionWith(op->state.mBounds); 72 mAllOpsOpaque &= opaqueOverBounds; 73 mOps.add(op); 74 } 75 76 bool intersects(Rect& rect) { 77 if (!rect.intersects(mBounds)) return false; 78 79 for (unsigned int i = 0; i < mOps.size(); i++) { 80 if (rect.intersects(mOps[i]->state.mBounds)) { 81#if DEBUG_DEFER 82 DEFER_LOGD("op intersects with op %p with bounds %f %f %f %f:", mOps[i], 83 mOps[i]->state.mBounds.left, mOps[i]->state.mBounds.top, 84 mOps[i]->state.mBounds.right, mOps[i]->state.mBounds.bottom); 85 mOps[i]->output(2); 86#endif 87 return true; 88 } 89 } 90 return false; 91 } 92 93 virtual status_t replay(OpenGLRenderer& renderer, Rect& dirty, int index) { 94 DEFER_LOGD("%d replaying DrawBatch %p, with %d ops (batch id %x, merge id %p)", 95 index, this, mOps.size(), getBatchId(), getMergeId()); 96 97 status_t status = DrawGlInfo::kStatusDone; 98 DisplayListLogBuffer& logBuffer = DisplayListLogBuffer::getInstance(); 99 for (unsigned int i = 0; i < mOps.size(); i++) { 100 DrawOp* op = mOps[i]; 101 102 renderer.restoreDisplayState(op->state); 103 104#if DEBUG_DISPLAY_LIST_OPS_AS_EVENTS 105 renderer.eventMark(op->name()); 106#endif 107 logBuffer.writeCommand(0, op->name()); 108 status |= op->applyDraw(renderer, dirty); 109 110#if DEBUG_MERGE_BEHAVIOR 111 Rect& bounds = mOps[i]->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 return status; 121 } 122 123 virtual bool purelyDrawBatch() { return true; } 124 125 virtual bool coversBounds(const Rect& bounds) { 126 if (CC_LIKELY(!mAllOpsOpaque || !mBounds.contains(bounds) || count() == 1)) return false; 127 128 Region uncovered(android::Rect(bounds.left, bounds.top, bounds.right, bounds.bottom)); 129 for (unsigned int i = 0; i < mOps.size(); i++) { 130 Rect &r = mOps[i]->state.mBounds; 131 uncovered.subtractSelf(android::Rect(r.left, r.top, r.right, r.bottom)); 132 } 133 return uncovered.isEmpty(); 134 } 135 136 inline int getBatchId() const { return mBatchId; } 137 inline mergeid_t getMergeId() const { return mMergeId; } 138 inline int count() const { return mOps.size(); } 139 140protected: 141 Vector<DrawOp*> mOps; 142 Rect mBounds; // union of bounds of contained ops 143private: 144 bool mAllOpsOpaque; 145 int mBatchId; 146 mergeid_t mMergeId; 147}; 148 149// compare alphas approximately, with a small margin 150#define NEQ_FALPHA(lhs, rhs) \ 151 fabs((float)lhs - (float)rhs) > 0.001f 152 153class MergingDrawBatch : public DrawBatch { 154public: 155 MergingDrawBatch(DeferInfo& deferInfo, Rect viewport) : 156 DrawBatch(deferInfo), mClipRect(viewport), mClipSideFlags(kClipSide_None) {} 157 158 /* 159 * Helper for determining if a new op can merge with a MergingDrawBatch based on their bounds 160 * and clip side flags. Positive bounds delta means new bounds fit in old. 161 */ 162 static inline bool checkSide(const int currentFlags, const int newFlags, const int side, 163 float boundsDelta) { 164 bool currentClipExists = currentFlags & side; 165 bool newClipExists = newFlags & side; 166 167 // if current is clipped, we must be able to fit new bounds in current 168 if (boundsDelta > 0 && currentClipExists) return false; 169 170 // if new is clipped, we must be able to fit current bounds in new 171 if (boundsDelta < 0 && newClipExists) return false; 172 173 return true; 174 } 175 176 /* 177 * Checks if a (mergeable) op can be merged into this batch 178 * 179 * If true, the op's multiDraw must be guaranteed to handle both ops simultaneously, so it is 180 * important to consider all paint attributes used in the draw calls in deciding both a) if an 181 * op tries to merge at all, and b) if the op can merge with another set of ops 182 * 183 * False positives can lead to information from the paints of subsequent merged operations being 184 * dropped, so we make simplifying qualifications on the ops that can merge, per op type. 185 */ 186 bool canMergeWith(DrawOp* op) { 187 bool isTextBatch = getBatchId() == DeferredDisplayList::kOpBatch_Text || 188 getBatchId() == DeferredDisplayList::kOpBatch_ColorText; 189 190 // Overlapping other operations is only allowed for text without shadow. For other ops, 191 // multiDraw isn't guaranteed to overdraw correctly 192 if (!isTextBatch || op->state.mDrawModifiers.mHasShadow) { 193 if (intersects(op->state.mBounds)) return false; 194 } 195 const DeferredDisplayState& lhs = op->state; 196 const DeferredDisplayState& rhs = mOps[0]->state; 197 198 if (NEQ_FALPHA(lhs.mAlpha, rhs.mAlpha)) 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 = op->state.mClipSideFlags; 207 if (currentFlags != kClipSide_None || newFlags != kClipSide_None) { 208 const Rect& opBounds = op->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]->mPaint) return true; 223 224 if (op->getPaintAlpha() != mOps[0]->getPaintAlpha()) return false; 225 226 /* Draw Modifiers compatibility check 227 * 228 * Shadows are ignored, as only text uses them, and in that case they are drawn 229 * per-DrawTextOp, before the unified text draw. Because of this, it's always safe to merge 230 * text UNLESS a later draw's shadow should overlays a previous draw's text. This is covered 231 * above with the intersection check. 232 * 233 * OverrideLayerAlpha is also ignored, as it's only used for drawing layers, which are never 234 * merged. 235 * 236 * These ignore cases prevent us from simply memcmp'ing the drawModifiers 237 */ 238 const DrawModifiers& lhsMod = lhs.mDrawModifiers; 239 const DrawModifiers& rhsMod = rhs.mDrawModifiers; 240 if (lhsMod.mShader != rhsMod.mShader) return false; 241 if (lhsMod.mColorFilter != rhsMod.mColorFilter) return false; 242 243 // Draw filter testing expects bit fields to be clear if filter not set. 244 if (lhsMod.mHasDrawFilter != rhsMod.mHasDrawFilter) return false; 245 if (lhsMod.mPaintFilterClearBits != rhsMod.mPaintFilterClearBits) return false; 246 if (lhsMod.mPaintFilterSetBits != rhsMod.mPaintFilterSetBits) return false; 247 248 return true; 249 } 250 251 virtual void add(DrawOp* op, bool opaqueOverBounds) { 252 DrawBatch::add(op, opaqueOverBounds); 253 254 const int newClipSideFlags = op->state.mClipSideFlags; 255 mClipSideFlags |= newClipSideFlags; 256 if (newClipSideFlags & kClipSide_Left) mClipRect.left = op->state.mClip.left; 257 if (newClipSideFlags & kClipSide_Top) mClipRect.top = op->state.mClip.top; 258 if (newClipSideFlags & kClipSide_Right) mClipRect.right = op->state.mClip.right; 259 if (newClipSideFlags & kClipSide_Bottom) mClipRect.bottom = op->state.mClip.bottom; 260 } 261 262 virtual status_t replay(OpenGLRenderer& renderer, Rect& dirty, int index) { 263 DEFER_LOGD("%d replaying MergingDrawBatch %p, with %d ops," 264 " clip flags %x (batch id %x, merge id %p)", 265 index, this, mOps.size(), mClipSideFlags, getBatchId(), getMergeId()); 266 if (mOps.size() == 1) { 267 return DrawBatch::replay(renderer, dirty, -1); 268 } 269 270 // clipping in the merged case is done ahead of time since all ops share the clip (if any) 271 renderer.setupMergedMultiDraw(mClipSideFlags ? &mClipRect : NULL); 272 273 DrawOp* op = mOps[0]; 274 DisplayListLogBuffer& buffer = DisplayListLogBuffer::getInstance(); 275 buffer.writeCommand(0, "multiDraw"); 276 buffer.writeCommand(1, op->name()); 277 status_t status = op->multiDraw(renderer, dirty, mOps, mBounds); 278 279#if DEBUG_MERGE_BEHAVIOR 280 renderer.drawScreenSpaceColorRect(mBounds.left, mBounds.top, mBounds.right, mBounds.bottom, 281 DEBUG_COLOR_MERGEDBATCH); 282#endif 283 return status; 284 } 285 286private: 287 /* 288 * Contains the effective clip rect shared by all merged ops. Initialized to the layer viewport, 289 * it will shrink if an op must be clipped on a certain side. The clipped sides are reflected in 290 * mClipSideFlags. 291 */ 292 Rect mClipRect; 293 int mClipSideFlags; 294}; 295 296class StateOpBatch : public Batch { 297public: 298 // creates a single operation batch 299 StateOpBatch(StateOp* op) : mOp(op) {} 300 301 virtual status_t replay(OpenGLRenderer& renderer, Rect& dirty, int index) { 302 DEFER_LOGD("replaying state op batch %p", this); 303 renderer.restoreDisplayState(mOp->state); 304 305 // use invalid save count because it won't be used at flush time - RestoreToCountOp is the 306 // only one to use it, and we don't use that class at flush time, instead calling 307 // renderer.restoreToCount directly 308 int saveCount = -1; 309 mOp->applyState(renderer, saveCount); 310 return DrawGlInfo::kStatusDone; 311 } 312 313private: 314 const StateOp* mOp; 315}; 316 317class RestoreToCountBatch : public Batch { 318public: 319 RestoreToCountBatch(StateOp* op, int restoreCount) : mOp(op), mRestoreCount(restoreCount) {} 320 321 virtual status_t replay(OpenGLRenderer& renderer, Rect& dirty, int index) { 322 DEFER_LOGD("batch %p restoring to count %d", this, mRestoreCount); 323 324 renderer.restoreDisplayState(mOp->state); 325 renderer.restoreToCount(mRestoreCount); 326 return DrawGlInfo::kStatusDone; 327 } 328 329private: 330 // we use the state storage for the RestoreToCountOp, but don't replay the op itself 331 const StateOp* mOp; 332 /* 333 * The count used here represents the flush() time saveCount. This is as opposed to the 334 * DisplayList record time, or defer() time values (which are RestoreToCountOp's mCount, and 335 * (saveCount + mCount) respectively). Since the count is different from the original 336 * RestoreToCountOp, we don't store a pointer to the op, as elsewhere. 337 */ 338 const int mRestoreCount; 339}; 340 341#if DEBUG_MERGE_BEHAVIOR 342class BarrierDebugBatch : public Batch { 343 virtual status_t replay(OpenGLRenderer& renderer, Rect& dirty, int index) { 344 renderer.drawScreenSpaceColorRect(0, 0, 10000, 10000, DEBUG_COLOR_BARRIER); 345 return DrawGlInfo::kStatusDrew; 346 } 347}; 348#endif 349 350///////////////////////////////////////////////////////////////////////////////// 351// DeferredDisplayList 352///////////////////////////////////////////////////////////////////////////////// 353 354void DeferredDisplayList::resetBatchingState() { 355 for (int i = 0; i < kOpBatch_Count; i++) { 356 mBatchLookup[i] = NULL; 357 mMergingBatches[i].clear(); 358 } 359#if DEBUG_MERGE_BEHAVIOR 360 if (mBatches.size() != 0) { 361 mBatches.add(new BarrierDebugBatch()); 362 } 363#endif 364 mEarliestBatchIndex = mBatches.size(); 365} 366 367void DeferredDisplayList::clear() { 368 resetBatchingState(); 369 mComplexClipStackStart = -1; 370 371 for (unsigned int i = 0; i < mBatches.size(); i++) { 372 delete mBatches[i]; 373 } 374 mBatches.clear(); 375 mSaveStack.clear(); 376 mEarliestBatchIndex = 0; 377 mEarliestUnclearedIndex = 0; 378} 379 380///////////////////////////////////////////////////////////////////////////////// 381// Operation adding 382///////////////////////////////////////////////////////////////////////////////// 383 384int DeferredDisplayList::getStateOpDeferFlags() const { 385 // For both clipOp and save(Layer)Op, we don't want to save drawing info, and only want to save 386 // the clip if we aren't recording a complex clip (and can thus trust it to be a rect) 387 return recordingComplexClip() ? 0 : kStateDeferFlag_Clip; 388} 389 390int DeferredDisplayList::getDrawOpDeferFlags() const { 391 return kStateDeferFlag_Draw | getStateOpDeferFlags(); 392} 393 394/** 395 * When an clipping operation occurs that could cause a complex clip, record the operation and all 396 * subsequent clipOps, save/restores (if the clip flag is set). During a flush, instead of loading 397 * the clip from deferred state, we play back all of the relevant state operations that generated 398 * the complex clip. 399 * 400 * Note that we don't need to record the associated restore operation, since operations at defer 401 * time record whether they should store the renderer's current clip 402 */ 403void DeferredDisplayList::addClip(OpenGLRenderer& renderer, ClipOp* op) { 404 if (recordingComplexClip() || op->canCauseComplexClip() || !renderer.hasRectToRectTransform()) { 405 DEFER_LOGD("%p Received complex clip operation %p", this, op); 406 407 // NOTE: defer clip op before setting mComplexClipStackStart so previous clip is recorded 408 storeStateOpBarrier(renderer, op); 409 410 if (!recordingComplexClip()) { 411 mComplexClipStackStart = renderer.getSaveCount() - 1; 412 DEFER_LOGD(" Starting complex clip region, start is %d", mComplexClipStackStart); 413 } 414 } 415} 416 417/** 418 * For now, we record save layer operations as barriers in the batch list, preventing drawing 419 * operations from reordering around the saveLayer and it's associated restore() 420 * 421 * In the future, we should send saveLayer commands (if they can be played out of order) and their 422 * contained drawing operations to a seperate list of batches, so that they may draw at the 423 * beginning of the frame. This would avoid targetting and removing an FBO in the middle of a frame. 424 * 425 * saveLayer operations should be pulled to the beginning of the frame if the canvas doesn't have a 426 * complex clip, and if the flags (kClip_SaveFlag & kClipToLayer_SaveFlag) are set. 427 */ 428void DeferredDisplayList::addSaveLayer(OpenGLRenderer& renderer, 429 SaveLayerOp* op, int newSaveCount) { 430 DEFER_LOGD("%p adding saveLayerOp %p, flags %x, new count %d", 431 this, op, op->getFlags(), newSaveCount); 432 433 storeStateOpBarrier(renderer, op); 434 mSaveStack.push(newSaveCount); 435} 436 437/** 438 * Takes save op and it's return value - the new save count - and stores it into the stream as a 439 * barrier if it's needed to properly modify a complex clip 440 */ 441void DeferredDisplayList::addSave(OpenGLRenderer& renderer, SaveOp* op, int newSaveCount) { 442 int saveFlags = op->getFlags(); 443 DEFER_LOGD("%p adding saveOp %p, flags %x, new count %d", this, op, saveFlags, newSaveCount); 444 445 if (recordingComplexClip() && (saveFlags & SkCanvas::kClip_SaveFlag)) { 446 // store and replay the save operation, as it may be needed to correctly playback the clip 447 DEFER_LOGD(" adding save barrier with new save count %d", newSaveCount); 448 storeStateOpBarrier(renderer, op); 449 mSaveStack.push(newSaveCount); 450 } 451} 452 453/** 454 * saveLayer() commands must be associated with a restoreToCount batch that will clean up and draw 455 * the layer in the deferred list 456 * 457 * other save() commands which occur as children of a snapshot with complex clip will be deferred, 458 * and must be restored 459 * 460 * Either will act as a barrier to draw operation reordering, as we want to play back layer 461 * save/restore and complex canvas modifications (including save/restore) in order. 462 */ 463void DeferredDisplayList::addRestoreToCount(OpenGLRenderer& renderer, StateOp* op, 464 int newSaveCount) { 465 DEFER_LOGD("%p addRestoreToCount %d", this, newSaveCount); 466 467 if (recordingComplexClip() && newSaveCount <= mComplexClipStackStart) { 468 mComplexClipStackStart = -1; 469 resetBatchingState(); 470 } 471 472 if (mSaveStack.isEmpty() || newSaveCount > mSaveStack.top()) { 473 return; 474 } 475 476 while (!mSaveStack.isEmpty() && mSaveStack.top() >= newSaveCount) mSaveStack.pop(); 477 478 storeRestoreToCountBarrier(renderer, op, mSaveStack.size() + FLUSH_SAVE_STACK_DEPTH); 479} 480 481void DeferredDisplayList::addDrawOp(OpenGLRenderer& renderer, DrawOp* op) { 482 if (renderer.storeDisplayState(op->state, getDrawOpDeferFlags())) { 483 return; // quick rejected 484 } 485 486 DeferInfo deferInfo; 487 op->onDefer(renderer, deferInfo); 488 489 // complex clip has a complex set of expectations on the renderer state - for now, avoid taking 490 // the merge path in those cases 491 deferInfo.mergeable &= !recordingComplexClip(); 492 493 if (CC_LIKELY(mAvoidOverdraw) && mBatches.size() && 494 op->state.mClipSideFlags != kClipSide_ConservativeFull && 495 deferInfo.opaqueOverBounds && op->state.mBounds.contains(mBounds)) { 496 // avoid overdraw by resetting drawing state + discarding drawing ops 497 discardDrawingBatches(mBatches.size() - 1); 498 resetBatchingState(); 499 } 500 501 if (CC_UNLIKELY(renderer.getCaches().drawReorderDisabled)) { 502 // TODO: elegant way to reuse batches? 503 DrawBatch* b = new DrawBatch(deferInfo); 504 b->add(op, deferInfo.opaqueOverBounds); 505 mBatches.add(b); 506 return; 507 } 508 509 // find the latest batch of the new op's type, and try to merge the new op into it 510 DrawBatch* targetBatch = NULL; 511 512 // insertion point of a new batch, will hopefully be immediately after similar batch 513 // (eventually, should be similar shader) 514 int insertBatchIndex = mBatches.size(); 515 if (!mBatches.isEmpty()) { 516 if (op->state.mBounds.isEmpty()) { 517 // don't know the bounds for op, so add to last batch and start from scratch on next op 518 DrawBatch* b = new DrawBatch(deferInfo); 519 b->add(op, deferInfo.opaqueOverBounds); 520 mBatches.add(b); 521 resetBatchingState(); 522#if DEBUG_DEFER 523 DEFER_LOGD("Warning: Encountered op with empty bounds, resetting batches"); 524 op->output(2); 525#endif 526 return; 527 } 528 529 if (deferInfo.mergeable) { 530 // Try to merge with any existing batch with same mergeId. 531 if (mMergingBatches[deferInfo.batchId].get(deferInfo.mergeId, targetBatch)) { 532 if (!((MergingDrawBatch*) targetBatch)->canMergeWith(op)) { 533 targetBatch = NULL; 534 } 535 } 536 } else { 537 // join with similar, non-merging batch 538 targetBatch = (DrawBatch*)mBatchLookup[deferInfo.batchId]; 539 } 540 541 if (targetBatch || deferInfo.mergeable) { 542 // iterate back toward target to see if anything drawn since should overlap the new op 543 // if no target, merging ops still interate to find similar batch to insert after 544 for (int i = mBatches.size() - 1; i >= mEarliestBatchIndex; i--) { 545 DrawBatch* overBatch = (DrawBatch*)mBatches[i]; 546 547 if (overBatch == targetBatch) break; 548 549 // TODO: also consider shader shared between batch types 550 if (deferInfo.batchId == overBatch->getBatchId()) { 551 insertBatchIndex = i + 1; 552 if (!targetBatch) break; // found insert position, quit 553 } 554 555 if (overBatch->intersects(op->state.mBounds)) { 556 // NOTE: it may be possible to optimize for special cases where two operations 557 // of the same batch/paint could swap order, such as with a non-mergeable 558 // (clipped) and a mergeable text operation 559 targetBatch = NULL; 560#if DEBUG_DEFER 561 DEFER_LOGD("op couldn't join batch %d, was intersected by batch %d", 562 targetIndex, i); 563 op->output(2); 564#endif 565 break; 566 } 567 } 568 } 569 } 570 571 if (!targetBatch) { 572 if (deferInfo.mergeable) { 573 targetBatch = new MergingDrawBatch(deferInfo, mBounds); 574 mMergingBatches[deferInfo.batchId].put(deferInfo.mergeId, targetBatch); 575 } else { 576 targetBatch = new DrawBatch(deferInfo); 577 mBatchLookup[deferInfo.batchId] = targetBatch; 578 } 579 580 DEFER_LOGD("creating %singBatch %p, bid %x, at %d", 581 deferInfo.mergeable ? "Merg" : "Draw", 582 targetBatch, deferInfo.batchId, insertBatchIndex); 583 mBatches.insertAt(targetBatch, insertBatchIndex); 584 } 585 586 targetBatch->add(op, deferInfo.opaqueOverBounds); 587} 588 589void DeferredDisplayList::storeStateOpBarrier(OpenGLRenderer& renderer, StateOp* op) { 590 DEFER_LOGD("%p adding state op barrier at pos %d", this, mBatches.size()); 591 592 renderer.storeDisplayState(op->state, getStateOpDeferFlags()); 593 mBatches.add(new StateOpBatch(op)); 594 resetBatchingState(); 595} 596 597void DeferredDisplayList::storeRestoreToCountBarrier(OpenGLRenderer& renderer, StateOp* op, 598 int newSaveCount) { 599 DEFER_LOGD("%p adding restore to count %d barrier, pos %d", 600 this, newSaveCount, mBatches.size()); 601 602 // store displayState for the restore operation, as it may be associated with a saveLayer that 603 // doesn't have kClip_SaveFlag set 604 renderer.storeDisplayState(op->state, getStateOpDeferFlags()); 605 mBatches.add(new RestoreToCountBatch(op, newSaveCount)); 606 resetBatchingState(); 607} 608 609///////////////////////////////////////////////////////////////////////////////// 610// Replay / flush 611///////////////////////////////////////////////////////////////////////////////// 612 613static status_t replayBatchList(const Vector<Batch*>& batchList, 614 OpenGLRenderer& renderer, Rect& dirty) { 615 status_t status = DrawGlInfo::kStatusDone; 616 617 for (unsigned int i = 0; i < batchList.size(); i++) { 618 if (batchList[i]) { 619 status |= batchList[i]->replay(renderer, dirty, i); 620 } 621 } 622 DEFER_LOGD("--flushed, drew %d batches", batchList.size()); 623 return status; 624} 625 626status_t DeferredDisplayList::flush(OpenGLRenderer& renderer, Rect& dirty) { 627 ATRACE_NAME("flush drawing commands"); 628 Caches::getInstance().fontRenderer->endPrecaching(); 629 630 status_t status = DrawGlInfo::kStatusDone; 631 632 if (isEmpty()) return status; // nothing to flush 633 renderer.restoreToCount(1); 634 635 DEFER_LOGD("--flushing"); 636 renderer.eventMark("Flush"); 637 638 // save and restore (with draw modifiers) so that reordering doesn't affect final state 639 DrawModifiers restoreDrawModifiers = renderer.getDrawModifiers(); 640 renderer.save(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 641 642 if (CC_LIKELY(mAvoidOverdraw)) { 643 for (unsigned int i = 1; i < mBatches.size(); i++) { 644 if (mBatches[i] && mBatches[i]->coversBounds(mBounds)) { 645 discardDrawingBatches(i - 1); 646 } 647 } 648 } 649 // NOTE: depth of the save stack at this point, before playback, should be reflected in 650 // FLUSH_SAVE_STACK_DEPTH, so that save/restores match up correctly 651 status |= replayBatchList(mBatches, renderer, dirty); 652 653 renderer.restoreToCount(1); 654 renderer.setDrawModifiers(restoreDrawModifiers); 655 656 DEFER_LOGD("--flush complete, returning %x", status); 657 clear(); 658 return status; 659} 660 661void DeferredDisplayList::discardDrawingBatches(const unsigned int maxIndex) { 662 for (unsigned int i = mEarliestUnclearedIndex; i <= maxIndex; i++) { 663 // leave deferred state ops alone for simplicity (empty save restore pairs may now exist) 664 if (mBatches[i] && mBatches[i]->purelyDrawBatch()) { 665 DrawBatch* b = (DrawBatch*) mBatches[i]; 666 delete mBatches[i]; 667 mBatches.replaceAt(NULL, i); 668 } 669 } 670 mEarliestUnclearedIndex = maxIndex + 1; 671} 672 673}; // namespace uirenderer 674}; // namespace android 675