void DisplayItemList::addItemToIndexIfNeeded(const DisplayItem& displayItem, size_t index, DisplayItemIndicesByClientMap& displayItemIndicesByClient) { if (!displayItem.isCacheable()) return; DisplayItemIndicesByClientMap::iterator it = displayItemIndicesByClient.find(displayItem.client()); Vector<size_t>& indices = it == displayItemIndicesByClient.end() ? displayItemIndicesByClient.add(displayItem.client(), Vector<size_t>()).storedValue->value : it->value; indices.append(index); }
void PaintController::checkCachedDisplayItemIsUnchanged(const char* messagePrefix, const DisplayItem& newItem, const DisplayItem& oldItem) { ASSERT(RuntimeEnabledFeatures::slimmingPaintUnderInvalidationCheckingEnabled()); ASSERT(!newItem.isCached()); ASSERT(!oldItem.isCached()); if (newItem.skippedCache()) { showUnderInvalidationError(messagePrefix, "ERROR: under-invalidation: skipped-cache in cached subsequence", &newItem, &oldItem); ASSERT_NOT_REACHED(); } if (newItem.isCacheable() && !m_validlyCachedClients.contains(&newItem.client())) { showUnderInvalidationError(messagePrefix, "ERROR: under-invalidation: invalidated in cached subsequence", &newItem, &oldItem); ASSERT_NOT_REACHED(); } if (newItem.equals(oldItem)) return; showUnderInvalidationError(messagePrefix, "ERROR: under-invalidation: display item changed", &newItem, &oldItem); #ifndef NDEBUG if (newItem.isDrawing()) { RefPtr<const SkPicture> newPicture = static_cast<const DrawingDisplayItem&>(newItem).picture(); RefPtr<const SkPicture> oldPicture = static_cast<const DrawingDisplayItem&>(oldItem).picture(); String oldPictureDebugString = oldPicture ? pictureAsDebugString(oldPicture.get()) : "None"; String newPictureDebugString = newPicture ? pictureAsDebugString(newPicture.get()) : "None"; WTFLogAlways("old picture:\n%s\n", oldPictureDebugString.utf8().data()); WTFLogAlways("new picture:\n%s\n", newPictureDebugString.utf8().data()); } #endif // NDEBUG ASSERT_NOT_REACHED(); }
void DisplayItemList::checkCachedDisplayItemIsUnchanged(const DisplayItem& displayItem, DisplayItemIndicesByClientMap& displayItemIndicesByClient) { ASSERT(RuntimeEnabledFeatures::slimmingPaintUnderInvalidationCheckingEnabled()); if (!displayItem.isDrawing() || displayItem.skippedCache() || !clientCacheIsValid(displayItem.client())) return; // If checking under-invalidation, we always generate new display item even if the client is not invalidated. // Checks if the new picture is the same as the cached old picture. If the new picture is different but // the client is not invalidated, issue error about under-invalidation. size_t index = findMatchingItemFromIndex(displayItem.nonCachedId(), displayItemIndicesByClient, m_currentDisplayItems); if (index == kNotFound) { showUnderInvalidationError("ERROR: under-invalidation: no cached display item", displayItem); ASSERT_NOT_REACHED(); return; } DisplayItems::iterator foundItem = m_currentDisplayItems.begin() + index; RefPtr<const SkPicture> newPicture = static_cast<const DrawingDisplayItem&>(displayItem).picture(); RefPtr<const SkPicture> oldPicture = static_cast<const DrawingDisplayItem&>(*foundItem).picture(); // Invalidate the display item so that we can check if there are any remaining cached display items after merging. foundItem->clearClientForUnderInvalidationChecking(); if (!newPicture && !oldPicture) return; if (newPicture && oldPicture) { switch (static_cast<const DrawingDisplayItem&>(displayItem).underInvalidationCheckingMode()) { case DrawingDisplayItem::CheckPicture: if (newPicture->approximateOpCount() == oldPicture->approximateOpCount()) { SkDynamicMemoryWStream newPictureSerialized; newPicture->serialize(&newPictureSerialized); SkDynamicMemoryWStream oldPictureSerialized; oldPicture->serialize(&oldPictureSerialized); if (newPictureSerialized.bytesWritten() == oldPictureSerialized.bytesWritten()) { RefPtr<SkData> oldData = adoptRef(oldPictureSerialized.copyToData()); RefPtr<SkData> newData = adoptRef(newPictureSerialized.copyToData()); if (oldData->equals(newData.get())) return; } } break; case DrawingDisplayItem::CheckBitmap: if (newPicture->cullRect() == oldPicture->cullRect()) { SkBitmap bitmap; SkRect rect = newPicture->cullRect(); bitmap.allocPixels(SkImageInfo::MakeN32Premul(rect.width(), rect.height())); SkCanvas canvas(bitmap); canvas.translate(-rect.x(), -rect.y()); canvas.drawPicture(oldPicture.get()); SkPaint diffPaint; diffPaint.setXfermodeMode(SkXfermode::kDifference_Mode); canvas.drawPicture(newPicture.get(), nullptr, &diffPaint); if (bitmapIsAllZero(bitmap)) // Contents are the same. return; } default: ASSERT_NOT_REACHED(); } } showUnderInvalidationError("ERROR: under-invalidation: display item changed", displayItem); #ifndef NDEBUG String oldPictureDebugString = oldPicture ? pictureAsDebugString(oldPicture.get()) : "None"; String newPictureDebugString = newPicture ? pictureAsDebugString(newPicture.get()) : "None"; WTFLogAlways("old picture:\n%s\n", oldPictureDebugString.utf8().data()); WTFLogAlways("new picture:\n%s\n", newPictureDebugString.utf8().data()); #endif // NDEBUG ASSERT_NOT_REACHED(); }