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Implement ReserveTexture

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This commit is contained in:
Steve Streeting 2021-10-05 14:30:54 +01:00
parent 642c8d2781
commit 6b947b6906
1 changed files with 22 additions and 2 deletions
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24
Source/StevesUEHelpers/Private/StevesTextureRenderTargetPool.cpp
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@ -18,8 +18,28 @@ void FStevesTextureRenderTargetPool::ReleaseTextureReservation(UTextureRenderTar
FStevesTextureRenderTargetReservationPtr FStevesTextureRenderTargetPool::ReserveTexture(FIntPoint Size, FStevesTextureRenderTargetReservationPtr FStevesTextureRenderTargetPool::ReserveTexture(FIntPoint Size,
ETextureRenderTargetFormat Format, const UObject* Owner) ETextureRenderTargetFormat Format, const UObject* Owner)
{ {
// TODO const FTextureKey Key {Size, Format};
return MakeShared<FStevesTextureRenderTargetReservation>(nullptr, this->AsShared()); UTextureRenderTarget2D* Tex = nullptr;
if (auto Pooled = UnreservedTextures.Find(Key))
{
Tex = *Pooled;
UnreservedTextures.RemoveSingle(Key, Tex);
}
else if (Size.X > 0 && Size.Y > 0)
{
// No existing texture, so create
// Texture owner should be a valid UObject that will determine lifespan
UObject* TextureOwner = PoolOwner.IsValid() ? PoolOwner.Get() : GetTransientPackage();
Tex = NewObject<UTextureRenderTarget2D>(TextureOwner);
Tex->RenderTargetFormat = Format;
Tex->InitAutoFormat(Size.X, Size.Y);
Tex->UpdateResourceImmediate(true);
}
// Record reservation
Reservations.Add(FReservationInfo(Key, Owner, Tex));
return MakeShared<FStevesTextureRenderTargetReservation>(Tex, this->AsShared(), Owner);
} }
void FStevesTextureRenderTargetPool::RevokeReservations(const UObject* ForOwner) void FStevesTextureRenderTargetPool::RevokeReservations(const UObject* ForOwner)