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Copying //Tasks/UE5/Dev-SequencerMVVM2 to Main (//UE5/Main) @20364093 #preflight 628866dfb94f739b152c1e29 #preflight 628866e4585e8f793ee80943 #rb ludovic.chabant, andrew.rodham #fyi ludovic.chabant, andrew.rodham, andrew.porter #jira UE-105322 [CL 20364493 by Max Chen in ue5-main branch]
89 lines
2.4 KiB
C++
89 lines
2.4 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "SequencerKeyTimeCache.h"
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#include "MVVM/ViewModels/ChannelModel.h"
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#include "MovieSceneSection.h"
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#include "Algo/Sort.h"
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#include "Algo/BinarySearch.h"
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bool FSequencerCachedKeys::Update(FFrameRate SourceResolution)
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{
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using namespace UE::Sequencer;
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TSharedPtr<FChannelModel> Channel = WeakChannel.Pin();
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if (!Channel)
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{
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return false;
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}
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UMovieSceneSection* Section = Channel->GetSection();
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if (!Section || !CachedSignature.IsValid() || Section->GetSignature() != CachedSignature || SourceResolution != CachedTickResolution)
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{
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CachedSignature = Section ? Section->GetSignature() : FGuid();
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CachedTickResolution = SourceResolution;
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CachedKeyFrames.Reset();
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TArray<FKeyHandle> Handles;
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Channel->GetKeyArea()->GetKeyInfo(&Handles, &CachedKeyFrames);
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CachedKeyTimes.Reset(CachedKeyFrames.Num());
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CachedKeyHandles.Reset(CachedKeyFrames.Num());
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// Generate and cache
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for (int32 Index = 0; Index < CachedKeyFrames.Num(); ++Index)
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{
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CachedKeyTimes.Add(CachedKeyFrames[Index] / SourceResolution);
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CachedKeyHandles.Add(Handles[Index]);
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}
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return true;
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}
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return false;
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}
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void FSequencerCachedKeys::GetKeysInRange(const TRange<double>& Range, TArrayView<const double>* OutTimes, TArrayView<const FFrameNumber>* OutKeyFrames, TArrayView<const FKeyHandle>* OutHandles) const
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{
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// Binary search the first time that's >= the lower bound
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int32 FirstVisibleIndex = Algo::LowerBound(CachedKeyTimes, Range.GetLowerBoundValue());
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// Binary search the last time that's > the upper bound
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int32 LastVisibleIndex = Algo::UpperBound(CachedKeyTimes, Range.GetUpperBoundValue());
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int32 Num = LastVisibleIndex - FirstVisibleIndex;
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if (CachedKeyTimes.IsValidIndex(FirstVisibleIndex) && LastVisibleIndex <= CachedKeyTimes.Num())
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{
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if (OutTimes)
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{
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*OutTimes = MakeArrayView(&CachedKeyTimes[FirstVisibleIndex], Num);
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}
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if (OutKeyFrames)
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{
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*OutKeyFrames = MakeArrayView(&CachedKeyFrames[FirstVisibleIndex], Num);
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}
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if (OutHandles)
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{
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*OutHandles = MakeArrayView(&CachedKeyHandles[FirstVisibleIndex], Num);
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}
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}
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else
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{
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if (OutTimes)
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{
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*OutTimes = TArrayView<const double>();
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}
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if (OutKeyFrames)
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{
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*OutKeyFrames = TArrayView<const FFrameNumber>();
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}
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if (OutHandles)
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{
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*OutHandles = TArrayView<const FKeyHandle>();
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}
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}
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}
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