DisplayList.cpp revision 6657a6c53930eb0ff8d03317eb10ea7ddb0c49b4
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 ATRACE_TAG ATRACE_TAG_VIEW 18 19#include <SkCanvas.h> 20#include <algorithm> 21 22#include <utils/Trace.h> 23 24#include "Debug.h" 25#include "DisplayList.h" 26#include "DisplayListOp.h" 27#include "DisplayListLogBuffer.h" 28 29namespace android { 30namespace uirenderer { 31 32void DisplayList::outputLogBuffer(int fd) { 33 DisplayListLogBuffer& logBuffer = DisplayListLogBuffer::getInstance(); 34 if (logBuffer.isEmpty()) { 35 return; 36 } 37 38 FILE *file = fdopen(fd, "a"); 39 40 fprintf(file, "\nRecent DisplayList operations\n"); 41 logBuffer.outputCommands(file); 42 43 String8 cachesLog; 44 Caches::getInstance().dumpMemoryUsage(cachesLog); 45 fprintf(file, "\nCaches:\n%s", cachesLog.string()); 46 fprintf(file, "\n"); 47 48 fflush(file); 49} 50 51DisplayList::DisplayList(const DisplayListRenderer& recorder) : 52 mDestroyed(false), mTransformMatrix(NULL), mTransformCamera(NULL), mTransformMatrix3D(NULL), 53 mStaticMatrix(NULL), mAnimationMatrix(NULL) { 54 55 initFromDisplayListRenderer(recorder); 56} 57 58DisplayList::~DisplayList() { 59 mDestroyed = true; 60 clearResources(); 61} 62 63void DisplayList::destroyDisplayListDeferred(DisplayList* displayList) { 64 if (displayList) { 65 DISPLAY_LIST_LOGD("Deferring display list destruction"); 66 Caches::getInstance().deleteDisplayListDeferred(displayList); 67 } 68} 69 70void DisplayList::clearResources() { 71 mDisplayListData = NULL; 72 73 delete mTransformMatrix; 74 delete mTransformCamera; 75 delete mTransformMatrix3D; 76 delete mStaticMatrix; 77 delete mAnimationMatrix; 78 79 mTransformMatrix = NULL; 80 mTransformCamera = NULL; 81 mTransformMatrix3D = NULL; 82 mStaticMatrix = NULL; 83 mAnimationMatrix = NULL; 84 85 Caches& caches = Caches::getInstance(); 86 caches.unregisterFunctors(mFunctorCount); 87 caches.resourceCache.lock(); 88 89 for (size_t i = 0; i < mBitmapResources.size(); i++) { 90 caches.resourceCache.decrementRefcountLocked(mBitmapResources.itemAt(i)); 91 } 92 93 for (size_t i = 0; i < mOwnedBitmapResources.size(); i++) { 94 const SkBitmap* bitmap = mOwnedBitmapResources.itemAt(i); 95 caches.resourceCache.decrementRefcountLocked(bitmap); 96 caches.resourceCache.destructorLocked(bitmap); 97 } 98 99 for (size_t i = 0; i < mFilterResources.size(); i++) { 100 caches.resourceCache.decrementRefcountLocked(mFilterResources.itemAt(i)); 101 } 102 103 for (size_t i = 0; i < mPatchResources.size(); i++) { 104 caches.resourceCache.decrementRefcountLocked(mPatchResources.itemAt(i)); 105 } 106 107 for (size_t i = 0; i < mShaders.size(); i++) { 108 caches.resourceCache.decrementRefcountLocked(mShaders.itemAt(i)); 109 caches.resourceCache.destructorLocked(mShaders.itemAt(i)); 110 } 111 112 for (size_t i = 0; i < mSourcePaths.size(); i++) { 113 caches.resourceCache.decrementRefcountLocked(mSourcePaths.itemAt(i)); 114 } 115 116 for (size_t i = 0; i < mLayers.size(); i++) { 117 caches.resourceCache.decrementRefcountLocked(mLayers.itemAt(i)); 118 } 119 120 caches.resourceCache.unlock(); 121 122 for (size_t i = 0; i < mPaints.size(); i++) { 123 delete mPaints.itemAt(i); 124 } 125 126 for (size_t i = 0; i < mRegions.size(); i++) { 127 delete mRegions.itemAt(i); 128 } 129 130 for (size_t i = 0; i < mPaths.size(); i++) { 131 delete mPaths.itemAt(i); 132 } 133 134 for (size_t i = 0; i < mMatrices.size(); i++) { 135 delete mMatrices.itemAt(i); 136 } 137 138 mBitmapResources.clear(); 139 mOwnedBitmapResources.clear(); 140 mFilterResources.clear(); 141 mPatchResources.clear(); 142 mShaders.clear(); 143 mSourcePaths.clear(); 144 mPaints.clear(); 145 mRegions.clear(); 146 mPaths.clear(); 147 mMatrices.clear(); 148 mLayers.clear(); 149} 150 151void DisplayList::reset() { 152 clearResources(); 153 init(); 154} 155 156void DisplayList::initFromDisplayListRenderer(const DisplayListRenderer& recorder, bool reusing) { 157 if (reusing) { 158 // re-using display list - clear out previous allocations 159 clearResources(); 160 } 161 162 init(); 163 164 mDisplayListData = recorder.getDisplayListData(); 165 mSize = mDisplayListData->allocator.usedSize(); 166 167 if (mSize == 0) { 168 return; 169 } 170 171 mFunctorCount = recorder.getFunctorCount(); 172 173 Caches& caches = Caches::getInstance(); 174 caches.registerFunctors(mFunctorCount); 175 caches.resourceCache.lock(); 176 177 const Vector<const SkBitmap*>& bitmapResources = recorder.getBitmapResources(); 178 for (size_t i = 0; i < bitmapResources.size(); i++) { 179 const SkBitmap* resource = bitmapResources.itemAt(i); 180 mBitmapResources.add(resource); 181 caches.resourceCache.incrementRefcountLocked(resource); 182 } 183 184 const Vector<const SkBitmap*>& ownedBitmapResources = recorder.getOwnedBitmapResources(); 185 for (size_t i = 0; i < ownedBitmapResources.size(); i++) { 186 const SkBitmap* resource = ownedBitmapResources.itemAt(i); 187 mOwnedBitmapResources.add(resource); 188 caches.resourceCache.incrementRefcountLocked(resource); 189 } 190 191 const Vector<SkiaColorFilter*>& filterResources = recorder.getFilterResources(); 192 for (size_t i = 0; i < filterResources.size(); i++) { 193 SkiaColorFilter* resource = filterResources.itemAt(i); 194 mFilterResources.add(resource); 195 caches.resourceCache.incrementRefcountLocked(resource); 196 } 197 198 const Vector<const Res_png_9patch*>& patchResources = recorder.getPatchResources(); 199 for (size_t i = 0; i < patchResources.size(); i++) { 200 const Res_png_9patch* resource = patchResources.itemAt(i); 201 mPatchResources.add(resource); 202 caches.resourceCache.incrementRefcountLocked(resource); 203 } 204 205 const Vector<SkiaShader*>& shaders = recorder.getShaders(); 206 for (size_t i = 0; i < shaders.size(); i++) { 207 SkiaShader* resource = shaders.itemAt(i); 208 mShaders.add(resource); 209 caches.resourceCache.incrementRefcountLocked(resource); 210 } 211 212 const SortedVector<const SkPath*>& sourcePaths = recorder.getSourcePaths(); 213 for (size_t i = 0; i < sourcePaths.size(); i++) { 214 mSourcePaths.add(sourcePaths.itemAt(i)); 215 caches.resourceCache.incrementRefcountLocked(sourcePaths.itemAt(i)); 216 } 217 218 const Vector<Layer*>& layers = recorder.getLayers(); 219 for (size_t i = 0; i < layers.size(); i++) { 220 mLayers.add(layers.itemAt(i)); 221 caches.resourceCache.incrementRefcountLocked(layers.itemAt(i)); 222 } 223 224 caches.resourceCache.unlock(); 225 226 mPaints.appendVector(recorder.getPaints()); 227 mRegions.appendVector(recorder.getRegions()); 228 mPaths.appendVector(recorder.getPaths()); 229 mMatrices.appendVector(recorder.getMatrices()); 230} 231 232void DisplayList::init() { 233 mSize = 0; 234 mIsRenderable = true; 235 mFunctorCount = 0; 236 mLeft = 0; 237 mTop = 0; 238 mRight = 0; 239 mBottom = 0; 240 mClipToBounds = true; 241 mIsolatedZVolume = true; 242 mProjectBackwards = false; 243 mAlpha = 1; 244 mHasOverlappingRendering = true; 245 mTranslationX = 0; 246 mTranslationY = 0; 247 mTranslationZ = 0; 248 mRotation = 0; 249 mRotationX = 0; 250 mRotationY= 0; 251 mScaleX = 1; 252 mScaleY = 1; 253 mPivotX = 0; 254 mPivotY = 0; 255 mCameraDistance = 0; 256 mMatrixDirty = false; 257 mMatrixFlags = 0; 258 mPrevWidth = -1; 259 mPrevHeight = -1; 260 mWidth = 0; 261 mHeight = 0; 262 mPivotExplicitlySet = false; 263 mCaching = false; 264} 265 266size_t DisplayList::getSize() { 267 return mSize; 268} 269 270/** 271 * This function is a simplified version of replay(), where we simply retrieve and log the 272 * display list. This function should remain in sync with the replay() function. 273 */ 274void DisplayList::output(uint32_t level) { 275 ALOGD("%*sStart display list (%p, %s, render=%d)", (level - 1) * 2, "", this, 276 mName.string(), isRenderable()); 277 ALOGD("%*s%s %d", level * 2, "", "Save", 278 SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 279 280 outputViewProperties(level); 281 int flags = DisplayListOp::kOpLogFlag_Recurse; 282 for (unsigned int i = 0; i < mDisplayListData->displayListOps.size(); i++) { 283 mDisplayListData->displayListOps[i]->output(level, flags); 284 } 285 286 ALOGD("%*sDone (%p, %s)", (level - 1) * 2, "", this, mName.string()); 287} 288 289float DisplayList::getPivotX() { 290 updateMatrix(); 291 return mPivotX; 292} 293 294float DisplayList::getPivotY() { 295 updateMatrix(); 296 return mPivotY; 297} 298 299void DisplayList::updateMatrix() { 300 if (mMatrixDirty) { 301 if (!mTransformMatrix) { 302 mTransformMatrix = new SkMatrix(); 303 } 304 if (mMatrixFlags == 0 || mMatrixFlags == TRANSLATION) { 305 mTransformMatrix->reset(); 306 } else { 307 if (!mPivotExplicitlySet) { 308 if (mWidth != mPrevWidth || mHeight != mPrevHeight) { 309 mPrevWidth = mWidth; 310 mPrevHeight = mHeight; 311 mPivotX = mPrevWidth / 2.0f; 312 mPivotY = mPrevHeight / 2.0f; 313 } 314 } 315 if (!Caches::getInstance().propertyEnable3d && (mMatrixFlags & ROTATION_3D) == 0) { 316 mTransformMatrix->setTranslate(mTranslationX, mTranslationY); 317 mTransformMatrix->preRotate(mRotation, mPivotX, mPivotY); 318 mTransformMatrix->preScale(mScaleX, mScaleY, mPivotX, mPivotY); 319 } else { 320 if (Caches::getInstance().propertyEnable3d) { 321 mTransform.loadTranslate(mPivotX + mTranslationX, mPivotY + mTranslationY, 322 mTranslationZ); 323 mTransform.rotate(mRotationX, 1, 0, 0); 324 mTransform.rotate(mRotationY, 0, 1, 0); 325 mTransform.rotate(mRotation, 0, 0, 1); 326 mTransform.scale(mScaleX, mScaleY, 1); 327 mTransform.translate(-mPivotX, -mPivotY); 328 } else { 329 /* TODO: support this old transform approach, based on API level */ 330 if (!mTransformCamera) { 331 mTransformCamera = new Sk3DView(); 332 mTransformMatrix3D = new SkMatrix(); 333 } 334 mTransformMatrix->reset(); 335 mTransformCamera->save(); 336 mTransformMatrix->preScale(mScaleX, mScaleY, mPivotX, mPivotY); 337 mTransformCamera->rotateX(mRotationX); 338 mTransformCamera->rotateY(mRotationY); 339 mTransformCamera->rotateZ(-mRotation); 340 mTransformCamera->getMatrix(mTransformMatrix3D); 341 mTransformMatrix3D->preTranslate(-mPivotX, -mPivotY); 342 mTransformMatrix3D->postTranslate(mPivotX + mTranslationX, 343 mPivotY + mTranslationY); 344 mTransformMatrix->postConcat(*mTransformMatrix3D); 345 mTransformCamera->restore(); 346 } 347 } 348 } 349 mMatrixDirty = false; 350 } 351} 352 353void DisplayList::outputViewProperties(const int level) { 354 updateMatrix(); 355 if (mLeft != 0 || mTop != 0) { 356 ALOGD("%*sTranslate (left, top) %d, %d", level * 2, "", mLeft, mTop); 357 } 358 if (mStaticMatrix) { 359 ALOGD("%*sConcatMatrix (static) %p: " MATRIX_STRING, 360 level * 2, "", mStaticMatrix, MATRIX_ARGS(mStaticMatrix)); 361 } 362 if (mAnimationMatrix) { 363 ALOGD("%*sConcatMatrix (animation) %p: " MATRIX_STRING, 364 level * 2, "", mAnimationMatrix, MATRIX_ARGS(mAnimationMatrix)); 365 } 366 if (mMatrixFlags != 0) { 367 if (mMatrixFlags == TRANSLATION) { 368 ALOGD("%*sTranslate %f, %f", level * 2, "", mTranslationX, mTranslationY); 369 } else { 370 ALOGD("%*sConcatMatrix %p: " MATRIX_STRING, 371 level * 2, "", mTransformMatrix, MATRIX_ARGS(mTransformMatrix)); 372 } 373 } 374 375 bool clipToBoundsNeeded = mCaching ? false : mClipToBounds; 376 if (mAlpha < 1) { 377 if (mCaching) { 378 ALOGD("%*sSetOverrideLayerAlpha %.2f", level * 2, "", mAlpha); 379 } else if (!mHasOverlappingRendering) { 380 ALOGD("%*sScaleAlpha %.2f", level * 2, "", mAlpha); 381 } else { 382 int flags = SkCanvas::kHasAlphaLayer_SaveFlag; 383 if (clipToBoundsNeeded) { 384 flags |= SkCanvas::kClipToLayer_SaveFlag; 385 clipToBoundsNeeded = false; // clipping done by save layer 386 } 387 ALOGD("%*sSaveLayerAlpha %.2f, %.2f, %.2f, %.2f, %d, 0x%x", level * 2, "", 388 (float) 0, (float) 0, (float) mRight - mLeft, (float) mBottom - mTop, 389 (int)(mAlpha * 255), flags); 390 } 391 } 392 if (clipToBoundsNeeded) { 393 ALOGD("%*sClipRect %.2f, %.2f, %.2f, %.2f", level * 2, "", 0.0f, 0.0f, 394 (float) mRight - mLeft, (float) mBottom - mTop); 395 } 396} 397 398/* 399 * For property operations, we pass a savecount of 0, since the operations aren't part of the 400 * displaylist, and thus don't have to compensate for the record-time/playback-time discrepancy in 401 * base saveCount (i.e., how RestoreToCount uses saveCount + mCount) 402 */ 403#define PROPERTY_SAVECOUNT 0 404 405template <class T> 406void DisplayList::setViewProperties(OpenGLRenderer& renderer, T& handler, 407 const int level) { 408#if DEBUG_DISPLAY_LIST 409 outputViewProperties(level); 410#endif 411 updateMatrix(); 412 if (mLeft != 0 || mTop != 0) { 413 renderer.translate(mLeft, mTop); 414 } 415 if (mStaticMatrix) { 416 renderer.concatMatrix(mStaticMatrix); 417 } else if (mAnimationMatrix) { 418 renderer.concatMatrix(mAnimationMatrix); 419 } 420 if (mMatrixFlags != 0) { 421 if (Caches::getInstance().propertyEnable3d) { 422 if (mMatrixFlags == TRANSLATION) { 423 renderer.translate(mTranslationX, mTranslationY, mTranslationZ); 424 } else { 425 renderer.concatMatrix(mTransform); 426 } 427 } else { 428 // avoid setting translationZ, use SkMatrix 429 if (mMatrixFlags == TRANSLATION) { 430 renderer.translate(mTranslationX, mTranslationY, 0); 431 } else { 432 renderer.concatMatrix(mTransformMatrix); 433 } 434 } 435 } 436 bool clipToBoundsNeeded = mCaching ? false : mClipToBounds; 437 if (mAlpha < 1) { 438 if (mCaching) { 439 renderer.setOverrideLayerAlpha(mAlpha); 440 } else if (!mHasOverlappingRendering) { 441 renderer.scaleAlpha(mAlpha); 442 } else { 443 // TODO: should be able to store the size of a DL at record time and not 444 // have to pass it into this call. In fact, this information might be in the 445 // location/size info that we store with the new native transform data. 446 int saveFlags = SkCanvas::kHasAlphaLayer_SaveFlag; 447 if (clipToBoundsNeeded) { 448 saveFlags |= SkCanvas::kClipToLayer_SaveFlag; 449 clipToBoundsNeeded = false; // clipping done by saveLayer 450 } 451 452 SaveLayerOp* op = new (handler.allocator()) SaveLayerOp( 453 0, 0, mRight - mLeft, mBottom - mTop, 454 mAlpha * 255, SkXfermode::kSrcOver_Mode, saveFlags); 455 handler(op, PROPERTY_SAVECOUNT, mClipToBounds); 456 } 457 } 458 if (clipToBoundsNeeded) { 459 ClipRectOp* op = new (handler.allocator()) ClipRectOp(0, 0, 460 mRight - mLeft, mBottom - mTop, SkRegion::kIntersect_Op); 461 handler(op, PROPERTY_SAVECOUNT, mClipToBounds); 462 } 463} 464 465/** 466 * Apply property-based transformations to input matrix 467 */ 468void DisplayList::applyViewPropertyTransforms(mat4& matrix) { 469 if (mLeft != 0 || mTop != 0) { 470 matrix.translate(mLeft, mTop); 471 } 472 if (mStaticMatrix) { 473 mat4 stat(*mStaticMatrix); 474 matrix.multiply(stat); 475 } else if (mAnimationMatrix) { 476 mat4 anim(*mAnimationMatrix); 477 matrix.multiply(anim); 478 } 479 if (mMatrixFlags != 0) { 480 updateMatrix(); 481 if (mMatrixFlags == TRANSLATION) { 482 matrix.translate(mTranslationX, mTranslationY, mTranslationZ); 483 } else { 484 if (Caches::getInstance().propertyEnable3d) { 485 matrix.multiply(mTransform); 486 } else { 487 mat4 temp(*mTransformMatrix); 488 matrix.multiply(temp); 489 } 490 } 491 } 492} 493 494/** 495 * Organizes the DisplayList hierarchy to prepare for Z-based draw order. 496 * 497 * This should be called before a call to defer() or drawDisplayList() 498 * 499 * Each DisplayList that serves as a 3d root builds its list of composited children, 500 * which are flagged to not draw in the standard draw loop. 501 */ 502void DisplayList::computeOrdering() { 503 ATRACE_CALL(); 504 m3dNodes.clear(); 505 mProjectedNodes.clear(); 506 507 // TODO: create temporary DDLOp and call computeOrderingImpl on top DisplayList so that 508 // transform properties are applied correctly to top level children 509 if (mDisplayListData == NULL) return; 510 for (unsigned int i = 0; i < mDisplayListData->children.size(); i++) { 511 DrawDisplayListOp* childOp = mDisplayListData->children[i]; 512 childOp->mDisplayList->computeOrderingImpl(childOp, 513 &m3dNodes, &mat4::identity(), 514 &mProjectedNodes, &mat4::identity()); 515 } 516} 517 518void DisplayList::computeOrderingImpl( 519 DrawDisplayListOp* opState, 520 Vector<ZDrawDisplayListOpPair>* compositedChildrenOf3dRoot, 521 const mat4* transformFrom3dRoot, 522 Vector<DrawDisplayListOp*>* compositedChildrenOfProjectionSurface, 523 const mat4* transformFromProjectionSurface) { 524 m3dNodes.clear(); 525 mProjectedNodes.clear(); 526 527 // TODO: should avoid this calculation in most cases 528 // TODO: just calculate single matrix, down to all leaf composited elements 529 Matrix4 localTransformFrom3dRoot(*transformFrom3dRoot); 530 localTransformFrom3dRoot.multiply(opState->mTransformFromParent); 531 Matrix4 localTransformFromProjectionSurface(*transformFromProjectionSurface); 532 localTransformFromProjectionSurface.multiply(opState->mTransformFromParent); 533 534 if (mTranslationZ != 0.0f) { // TODO: other signals for 3d compositing, such as custom matrix4 535 // composited 3d layer, flag for out of order draw and save matrix... 536 opState->mSkipInOrderDraw = true; 537 opState->mTransformFromCompositingAncestor.load(localTransformFrom3dRoot); 538 539 // ... and insert into current 3d root, keyed with pivot z for later sorting 540 Vector3 pivot(mPivotX, mPivotY, 0.0f); 541 mat4 totalTransform(localTransformFrom3dRoot); 542 applyViewPropertyTransforms(totalTransform); 543 totalTransform.mapPoint3d(pivot); 544 compositedChildrenOf3dRoot->add(ZDrawDisplayListOpPair(pivot.z, opState)); 545 } else if (mProjectBackwards) { 546 // composited projectee, flag for out of order draw, save matrix, and store in proj surface 547 opState->mSkipInOrderDraw = true; 548 opState->mTransformFromCompositingAncestor.load(localTransformFromProjectionSurface); 549 compositedChildrenOfProjectionSurface->add(opState); 550 } else { 551 // standard in order draw 552 opState->mSkipInOrderDraw = false; 553 } 554 555 if (mIsolatedZVolume) { 556 // create a new 3d space for descendents by collecting them 557 compositedChildrenOf3dRoot = &m3dNodes; 558 transformFrom3dRoot = &mat4::identity(); 559 } else { 560 applyViewPropertyTransforms(localTransformFrom3dRoot); 561 transformFrom3dRoot = &localTransformFrom3dRoot; 562 } 563 564 if (mDisplayListData != NULL && mDisplayListData->projectionIndex >= 0) { 565 // create a new projection surface for descendents by collecting them 566 compositedChildrenOfProjectionSurface = &mProjectedNodes; 567 transformFromProjectionSurface = &mat4::identity(); 568 } else { 569 applyViewPropertyTransforms(localTransformFromProjectionSurface); 570 transformFromProjectionSurface = &localTransformFromProjectionSurface; 571 } 572 573 if (mDisplayListData != NULL && mDisplayListData->children.size() > 0) { 574 for (unsigned int i = 0; i < mDisplayListData->children.size(); i++) { 575 DrawDisplayListOp* childOp = mDisplayListData->children[i]; 576 childOp->mDisplayList->computeOrderingImpl(childOp, 577 compositedChildrenOf3dRoot, transformFrom3dRoot, 578 compositedChildrenOfProjectionSurface, transformFromProjectionSurface); 579 } 580 } 581} 582 583class DeferOperationHandler { 584public: 585 DeferOperationHandler(DeferStateStruct& deferStruct, int level) 586 : mDeferStruct(deferStruct), mLevel(level) {} 587 inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) { 588 operation->defer(mDeferStruct, saveCount, mLevel, clipToBounds); 589 } 590 inline LinearAllocator& allocator() { return *(mDeferStruct.mAllocator); } 591 592private: 593 DeferStateStruct& mDeferStruct; 594 const int mLevel; 595}; 596 597void DisplayList::defer(DeferStateStruct& deferStruct, const int level) { 598 DeferOperationHandler handler(deferStruct, level); 599 iterate<DeferOperationHandler>(deferStruct.mRenderer, handler, level); 600} 601 602class ReplayOperationHandler { 603public: 604 ReplayOperationHandler(ReplayStateStruct& replayStruct, int level) 605 : mReplayStruct(replayStruct), mLevel(level) {} 606 inline void operator()(DisplayListOp* operation, int saveCount, bool clipToBounds) { 607#if DEBUG_DISPLAY_LIST_OPS_AS_EVENTS 608 mReplayStruct.mRenderer.eventMark(operation->name()); 609#endif 610 operation->replay(mReplayStruct, saveCount, mLevel, clipToBounds); 611 } 612 inline LinearAllocator& allocator() { return *(mReplayStruct.mAllocator); } 613 614private: 615 ReplayStateStruct& mReplayStruct; 616 const int mLevel; 617}; 618 619void DisplayList::replay(ReplayStateStruct& replayStruct, const int level) { 620 ReplayOperationHandler handler(replayStruct, level); 621 622 replayStruct.mRenderer.startMark(mName.string()); 623 iterate<ReplayOperationHandler>(replayStruct.mRenderer, handler, level); 624 replayStruct.mRenderer.endMark(); 625 626 DISPLAY_LIST_LOGD("%*sDone (%p, %s), returning %d", level * 2, "", this, mName.string(), 627 replayStruct.mDrawGlStatus); 628} 629 630template <class T> 631void DisplayList::iterate3dChildren(ChildrenSelectMode mode, OpenGLRenderer& renderer, 632 T& handler, const int level) { 633 if (m3dNodes.size() == 0 || 634 (mode == kNegativeZChildren && m3dNodes[0].key > 0.0f) || 635 (mode == kPositiveZChildren && m3dNodes[m3dNodes.size() - 1].key < 0.0f)) { 636 // no 3d children to draw 637 return; 638 } 639 640 LinearAllocator& alloc = handler.allocator(); 641 ClipRectOp* clipOp = new (alloc) ClipRectOp(0, 0, mWidth, mHeight, 642 SkRegion::kIntersect_Op); // clip to 3d root bounds for now 643 handler(clipOp, PROPERTY_SAVECOUNT, mClipToBounds); 644 int rootRestoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 645 646 for (size_t i = 0; i < m3dNodes.size(); i++) { 647 const float zValue = m3dNodes[i].key; 648 DrawDisplayListOp* childOp = m3dNodes[i].value; 649 650 if (mode == kPositiveZChildren && zValue < 0.0f) continue; 651 if (mode == kNegativeZChildren && zValue > 0.0f) break; 652 653 if (mode == kPositiveZChildren && zValue > 0.0f) { 654 /* draw shadow with parent matrix applied, passing in the child's total matrix 655 * 656 * TODO: 657 * -determine and pass background shape (and possibly drawable alpha) 658 * -view must opt-in to shadows 659 * -consider shadows for other content 660 * -inform shadow system of ancestor transform (for use in lighting) 661 */ 662 mat4 shadowMatrix(childOp->mTransformFromCompositingAncestor); 663 childOp->mDisplayList->applyViewPropertyTransforms(shadowMatrix); 664 DisplayListOp* shadowOp = new (alloc) DrawShadowOp(shadowMatrix, 665 childOp->mDisplayList->mAlpha, 666 childOp->mDisplayList->getWidth(), childOp->mDisplayList->getHeight()); 667 handler(shadowOp, PROPERTY_SAVECOUNT, mClipToBounds); 668 } 669 670 renderer.concatMatrix(childOp->mTransformFromCompositingAncestor); 671 childOp->mSkipInOrderDraw = false; // this is horrible, I'm so sorry everyone 672 handler(childOp, renderer.getSaveCount() - 1, mClipToBounds); 673 childOp->mSkipInOrderDraw = true; 674 } 675 handler(new (alloc) RestoreToCountOp(rootRestoreTo), PROPERTY_SAVECOUNT, mClipToBounds); 676} 677 678template <class T> 679void DisplayList::iterateProjectedChildren(OpenGLRenderer& renderer, T& handler, const int level) { 680 LinearAllocator& alloc = handler.allocator(); 681 ClipRectOp* clipOp = new (alloc) ClipRectOp(0, 0, mWidth, mHeight, 682 SkRegion::kReplace_Op); // clip to projection surface root bounds 683 handler(clipOp, PROPERTY_SAVECOUNT, mClipToBounds); 684 int rootRestoreTo = renderer.save(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag); 685 686 for (size_t i = 0; i < mProjectedNodes.size(); i++) { 687 DrawDisplayListOp* childOp = mProjectedNodes[i]; 688 renderer.concatMatrix(childOp->mTransformFromCompositingAncestor); 689 childOp->mSkipInOrderDraw = false; // this is horrible, I'm so sorry everyone 690 handler(childOp, renderer.getSaveCount() - 1, mClipToBounds); 691 childOp->mSkipInOrderDraw = true; 692 } 693 handler(new (alloc) RestoreToCountOp(rootRestoreTo), PROPERTY_SAVECOUNT, mClipToBounds); 694} 695 696/** 697 * This function serves both defer and replay modes, and will organize the displayList's component 698 * operations for a single frame: 699 * 700 * Every 'simple' state operation that affects just the matrix and alpha (or other factors of 701 * DeferredDisplayState) may be issued directly to the renderer, but complex operations (with custom 702 * defer logic) and operations in displayListOps are issued through the 'handler' which handles the 703 * defer vs replay logic, per operation 704 */ 705template <class T> 706void DisplayList::iterate(OpenGLRenderer& renderer, T& handler, const int level) { 707 if (CC_UNLIKELY(mDestroyed)) { // temporary debug logging 708 ALOGW("Error: %s is drawing after destruction, size %d", getName(), mSize); 709 CRASH(); 710 } 711 if (mSize == 0 || mAlpha <= 0) { 712 DISPLAY_LIST_LOGD("%*sEmpty display list (%p, %s)", level * 2, "", this, mName.string()); 713 return; 714 } 715 716#if DEBUG_DISPLAY_LIST 717 Rect* clipRect = renderer.getClipRect(); 718 DISPLAY_LIST_LOGD("%*sStart display list (%p, %s), clipRect: %.0f, %.0f, %.0f, %.0f", 719 level * 2, "", this, mName.string(), clipRect->left, clipRect->top, 720 clipRect->right, clipRect->bottom); 721#endif 722 723 LinearAllocator& alloc = handler.allocator(); 724 int restoreTo = renderer.getSaveCount(); 725 handler(new (alloc) SaveOp(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag), 726 PROPERTY_SAVECOUNT, mClipToBounds); 727 728 DISPLAY_LIST_LOGD("%*sSave %d %d", (level + 1) * 2, "", 729 SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag, restoreTo); 730 731 setViewProperties<T>(renderer, handler, level + 1); 732 733 bool quickRejected = mClipToBounds && renderer.quickRejectConservative(0, 0, mWidth, mHeight); 734 if (!quickRejected) { 735 // Z sort 3d children (stable-ness makes z compare fall back to standard drawing order) 736 std::stable_sort(m3dNodes.begin(), m3dNodes.end()); 737 738 // for 3d root, draw children with negative z values 739 iterate3dChildren(kNegativeZChildren, renderer, handler, level); 740 741 DisplayListLogBuffer& logBuffer = DisplayListLogBuffer::getInstance(); 742 const int saveCountOffset = renderer.getSaveCount() - 1; 743 const int projectionIndex = mDisplayListData->projectionIndex; 744 for (unsigned int i = 0; i < mDisplayListData->displayListOps.size(); i++) { 745 DisplayListOp *op = mDisplayListData->displayListOps[i]; 746 747#if DEBUG_DISPLAY_LIST 748 op->output(level + 1); 749#endif 750 751 logBuffer.writeCommand(level, op->name()); 752 handler(op, saveCountOffset, mClipToBounds); 753 754 if (CC_UNLIKELY(i == projectionIndex && mProjectedNodes.size() > 0)) { 755 iterateProjectedChildren(renderer, handler, level); 756 } 757 } 758 759 // for 3d root, draw children with positive z values 760 iterate3dChildren(kPositiveZChildren, renderer, handler, level); 761 } 762 763 DISPLAY_LIST_LOGD("%*sRestoreToCount %d", (level + 1) * 2, "", restoreTo); 764 handler(new (alloc) RestoreToCountOp(restoreTo), 765 PROPERTY_SAVECOUNT, mClipToBounds); 766 renderer.setOverrideLayerAlpha(1.0f); 767} 768 769}; // namespace uirenderer 770}; // namespace android 771