fix java edition style mipmaps

src/main/java/xyz/violaflower/legacy_tweaks/LegacyTweaksMixinPlugin.java

@@ -0,0 +1,58 @@
+package xyz.violaflower.legacy_tweaks;
+
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.tree.AbstractInsnNode;
+import org.objectweb.asm.tree.ClassNode;
+import org.objectweb.asm.tree.MethodInsnNode;
+import org.objectweb.asm.tree.MethodNode;
+import org.spongepowered.asm.mixin.extensibility.IMixinConfigPlugin;
+import org.spongepowered.asm.mixin.extensibility.IMixinInfo;
+
+import java.util.List;
+import java.util.Set;
+
+public class LegacyTweaksMixinPlugin implements IMixinConfigPlugin {
+	@Override
+	public void onLoad(String mixinPackage) {
+
+	}
+
+	@Override
+	public String getRefMapperConfig() {
+		return null;
+	}
+
+	@Override
+	public boolean shouldApplyMixin(String targetClassName, String mixinClassName) {
+		return true;
+	}
+
+	@Override
+	public void acceptTargets(Set<String> myTargets, Set<String> otherTargets) {
+
+	}
+
+	@Override
+	public List<String> getMixins() {
+		return null;
+	}
+
+	@Override
+	public void preApply(String targetClassName, ClassNode targetClass, String mixinClassName, IMixinInfo mixinInfo) {
+		if (mixinClassName.contains("MipmapGeneratorMixin")) {
+			System.out.println(mixinClassName);
+			for (MethodNode method : targetClass.methods) {
+				for (AbstractInsnNode instruction : method.instructions) {
+					if (instruction.getOpcode() == Opcodes.AASTORE) {
+						method.instructions.insert(instruction, new MethodInsnNode(Opcodes.INVOKESTATIC, "xyz/violaflower/legacy_tweaks/helper/tweak/texture/MipmapTypeHelper", "aastoreMarker", "()V"));
+					}
+				}
+			}
+		}
+	}
+
+	@Override
+	public void postApply(String targetClassName, ClassNode targetClass, String mixinClassName, IMixinInfo mixinInfo) {
+
+	}
+}

src/main/java/xyz/violaflower/legacy_tweaks/helper/tweak/texture/MipmapTypeHelper.java

@@ -72,6 +72,9 @@ private static void exportGeneratedMipmaps(NativeImage[] images, ResourceLocatio
         }
     }
 
+    // Dynamically added to MipmapGenerator via a mixin plugin
+    public static void aastoreMarker() {}
+
     /// Adds manual mipmaps in `textures/ltmipmaps`
     public static void addManualMipmaps(int mipmapLevels, NativeImage[] mipmaps, ResourceLocation currentResourceLocation) {
         if (!Tweaks.MIPMAPPING.manualMipmapping.isEnabled()) return;

src/main/java/xyz/violaflower/legacy_tweaks/mixin/client/tweak/mipmapping/MipmapGeneratorMixin.java

@@ -1,8 +1,10 @@
 package xyz.violaflower.legacy_tweaks.mixin.client.tweak.mipmapping;
 
+import com.llamalad7.mixinextras.sugar.Local;
 import com.mojang.blaze3d.platform.NativeImage;
 import net.minecraft.client.renderer.texture.MipmapGenerator;
 import net.minecraft.resources.ResourceLocation;
+import org.spongepowered.asm.mixin.Dynamic;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
@@ -27,10 +29,9 @@ private static void changeMipmapType(NativeImage[] nativeImages, int i, Callback
         MipmapTypeHelper.setMipmapType(nativeImages, i, currentResourceLocation, cir);
     }
 
-    @Inject(method = "generateMipLevels", at = @At("RETURN"))
-    private static void changeJavaMipmaps(NativeImage[] images, int mipmapLevels, CallbackInfoReturnable<NativeImage[]> cir) {
-        ResourceLocation currentResourceLocation = MipmapTypeHelper.currentResourceLocation;
-        if (currentResourceLocation == null) return; // if it's already been canceled, don't do it again.
-        MipmapTypeHelper.addManualMipmaps(mipmapLevels, cir.getReturnValue(), currentResourceLocation);
+    @Dynamic // this is some cursed stuff
+    @Inject(method = "generateMipLevels", at = @At(value = "INVOKE", target = "Lxyz/violaflower/legacy_tweaks/helper/tweak/texture/MipmapTypeHelper;aastoreMarker()V", ordinal = 2))
+    private static void changeJavaMipmaps(NativeImage[] images, int mipmapLevels, CallbackInfoReturnable<NativeImage[]> cir, @Local(ordinal = 1) int level, @Local(ordinal = 1) NativeImage[] nativeImages) {
+        MipmapTypeHelper.maybeGetMipmapForLevel(level, g -> nativeImages[level] = g, MipmapTypeHelper.currentResourceLocation);
     }
 }

src/main/resources/legacy_tweaks.mixins.json

@@ -1,6 +1,7 @@
 {
   "required": true,
   "package": "xyz.violaflower.legacy_tweaks.mixin",
+  "plugin": "xyz.violaflower.legacy_tweaks.LegacyTweaksMixinPlugin",
   "compatibilityLevel": "JAVA_21",
   "minVersion": "0.8",
   "client": [