Code/net/minecraft/client/renderer/texture/atlas/sources/LazyLoadedImage.java

54 lines
1.9 KiB
Java

package net.minecraft.client.renderer.texture.atlas.sources;
import com.mojang.blaze3d.platform.NativeImage;
import java.io.IOException;
import java.io.InputStream;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReference;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.server.packs.resources.Resource;
import net.minecraftforge.api.distmarker.Dist;
import net.minecraftforge.api.distmarker.OnlyIn;
@OnlyIn(Dist.CLIENT)
public class LazyLoadedImage {
private final ResourceLocation id;
private final Resource resource;
private final AtomicReference<NativeImage> image = new AtomicReference<>();
private final AtomicInteger referenceCount;
public LazyLoadedImage(ResourceLocation p_267104_, Resource p_266995_, int p_266778_) {
this.id = p_267104_;
this.resource = p_266995_;
this.referenceCount = new AtomicInteger(p_266778_);
}
public NativeImage get() throws IOException {
NativeImage nativeimage = this.image.get();
if (nativeimage == null) {
synchronized (this) {
nativeimage = this.image.get();
if (nativeimage == null) {
try (InputStream inputstream = this.resource.open()) {
nativeimage = NativeImage.read(inputstream);
this.image.set(nativeimage);
} catch (IOException ioexception) {
throw new IOException("Failed to load image " + this.id, ioexception);
}
}
}
}
return nativeimage;
}
public void release() {
int i = this.referenceCount.decrementAndGet();
if (i <= 0) {
NativeImage nativeimage = this.image.getAndSet(null);
if (nativeimage != null) {
nativeimage.close();
}
}
}
}