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Avoid refresh loop if no model data needs refreshing

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embeddedt 2024-01-04 20:30:13 -05:00
parent 7174ae1454
commit c678ebbb91
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1 changed files with 6 additions and 1 deletions
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forge/src/main/java/org/embeddedt/modernfix/forge/mixin/bugfix/model_data_manager_cme/ModelDataManagerMixin.java
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@ -6,6 +6,7 @@ import net.minecraft.world.level.ChunkPos;
import net.minecraft.world.level.Level;
import net.minecraftforge.client.model.ModelDataManager;
import org.embeddedt.modernfix.annotation.ClientOnlyMixin;
import org.spongepowered.asm.mixin.Final;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.Shadow;
import org.spongepowered.asm.mixin.injection.At;
@ -13,6 +14,7 @@ import org.spongepowered.asm.mixin.injection.ModifyArg;
import org.spongepowered.asm.mixin.injection.Redirect;
import java.util.Collections;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.Function;
@ -27,6 +29,8 @@ public abstract class ModelDataManagerMixin {
throw new AssertionError();
}
@Shadow @Final private static Map<ChunkPos, Set<BlockPos>> needModelDataRefresh;
/**
* Make the set of positions to refresh a real concurrent hash set rather than relying on synchronizedSet,
* because the returned iterator won't be thread-safe otherwise. See https://github.com/AppliedEnergistics/Applied-Energistics-2/issues/7511
@ -40,7 +44,8 @@ public abstract class ModelDataManagerMixin {
private static void onlyRefreshOnMainThread(Level toUpdate, ChunkPos pos) {
// Only refresh model data on the main thread. This prevents calling getBlockEntity from worker threads
// which could cause weird CMEs or other behavior.
if(Minecraft.getInstance().isSameThread()) {
// Avoid the loop if no model data needs to be refreshed, to prevent unnecessary allocation.
if(Minecraft.getInstance().isSameThread() && !needModelDataRefresh.isEmpty()) {
// Refresh the given chunk, and all its neighbors. This is less efficient than the default code
// but we have no choice since we need to not do refreshing on workers, and blocks might
// try to access model data in neighboring chunks.