R3944Realms/ModernFix-fix
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Work around Flywheel leaving freed buffers in BufferBuilder

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embeddedt 2023-12-23 14:11:21 -05:00
parent 00fa8227c3
commit 5ff2951b5a
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1 changed files with 11 additions and 2 deletions
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common/src/main/java/org/embeddedt/modernfix/common/mixin/bugfix/buffer_builder_leak/BufferBuilderMixin.java
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@ -4,6 +4,7 @@ import com.mojang.blaze3d.vertex.BufferBuilder;
import org.embeddedt.modernfix.ModernFix;
import org.embeddedt.modernfix.annotation.ClientOnlyMixin;
import org.embeddedt.modernfix.render.UnsafeBufferHelper;
import org.spongepowered.asm.mixin.Dynamic;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.Shadow;
import org.spongepowered.asm.mixin.injection.At;
@ -12,13 +13,21 @@ import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
import java.nio.ByteBuffer;
@Mixin(BufferBuilder.class)
@Mixin(value = BufferBuilder.class, priority = 1500)
@ClientOnlyMixin
public class BufferBuilderMixin {
@Shadow private ByteBuffer buffer;
private static boolean leakReported = false;
private boolean mfix$shouldFree = true;
@Dynamic
@Inject(method = "flywheel$injectForRender", at = @At("RETURN"), remap = false, require = 0)
private void preventFree(CallbackInfo ci) {
mfix$shouldFree = false;
}
/**
* Ensure UnsafeBufferHelper is classloaded early, to avoid Forge's event transformer showing an error in the log.
*/
@ -32,7 +41,7 @@ public class BufferBuilderMixin {
try {
ByteBuffer buf = buffer;
// can be null if a mod already tried to free the buffer
if(buf != null) {
if(buf != null && mfix$shouldFree) {
if(!leakReported) {
leakReported = true;
ModernFix.LOGGER.warn("One or more BufferBuilders have been leaked, ModernFix will attempt to correct this.");