278     if (delta.mDeltas.capacity() > mFrames.capacity()) {  in applyDelta()
279         resize(delta.mDeltas.capacity());  in applyDelta()
282     for (auto& d : delta.mDeltas) {  in applyDelta()
509             delta->mDeltas.emplace_back(i, *frame, mFramesDirty[i]);  in getFrameDelta()
522     delta->mDeltas.reserve(mFramesDirty.size());  in getAndResetDelta()
728     if (CC_UNLIKELY(!mDeltas.empty())) {  in operator =()
731     mDeltas = std::move(src.mDeltas);  in operator =()
742             std::accumulate(mDeltas.begin(), mDeltas.end(), size_t(0),  in getFlattenedSize()
749     return std::accumulate(mDeltas.begin(), mDeltas.end(), size_t(0),  in getFdCount()
757     if (mDeltas.size() > UINT8_MAX) {  in flatten()
767             buffer, size, static_cast<uint32_t>(mDeltas.size()));  in flatten()
768     for (auto& d : mDeltas) {  in flatten()
790     mDeltas.resize(deltaCount);  in unflatten()
791     for (auto& d : mDeltas) {  in unflatten()
801     return mDeltas.begin();  in begin()
805     return mDeltas.end();  in end()