Add utility for disabling Unihex font

Saves 10MB of RAM

Author: embeddedt

common/src/main/java/org/embeddedt/modernfix/common/mixin/feature/disable_unihex_font/UnihexProviderDefinitionMixin.java

@@ -0,0 +1,35 @@
+package org.embeddedt.modernfix.common.mixin.feature.disable_unihex_font;
+
+import com.mojang.blaze3d.font.GlyphProvider;
+import com.mojang.datafixers.util.Either;
+import net.minecraft.client.gui.font.CodepointMap;
+import net.minecraft.client.gui.font.providers.GlyphProviderDefinition;
+import net.minecraft.client.gui.font.providers.UnihexProvider;
+import net.minecraft.server.packs.resources.ResourceManager;
+import org.embeddedt.modernfix.ModernFix;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+import java.io.IOException;
+import java.lang.reflect.Constructor;
+
+@Mixin(UnihexProvider.Definition.class)
+public class UnihexProviderDefinitionMixin {
+    @Inject(method = "unpack", at = @At("HEAD"), cancellable = true)
+    private void disableProvider(CallbackInfoReturnable<Either<GlyphProviderDefinition.Loader, GlyphProviderDefinition.Reference>> cir) {
+        cir.setReturnValue(Either.left(this::mfix$loadEmpty));
+    }
+
+    private GlyphProvider mfix$loadEmpty(ResourceManager resourceManager) throws IOException {
+        try {
+            ModernFix.LOGGER.warn("Unihex provider is disabled, a number of Unicode characters will likely not render");
+            Constructor<UnihexProvider> constructor = UnihexProvider.class.getDeclaredConstructor(CodepointMap.class);
+            constructor.setAccessible(true);
+            return constructor.newInstance(new CodepointMap<>(Object[]::new, Object[][]::new));
+        } catch(ReflectiveOperationException e) {
+            throw new IOException("Failed to create empty loader", e);
+        }
+    }
+}

common/src/main/java/org/embeddedt/modernfix/core/config/ModernFixEarlyConfig.java

@@ -161,6 +161,7 @@ public DefaultSettingMapBuilder put(String key, Boolean value) {
             .put("mixin.feature.integrated_server_watchdog", true)
             .put("mixin.perf.faster_item_rendering", false)
             .put("mixin.feature.spam_thread_dump", false)
+            .put("mixin.feature.disable_unihex_font", false)
             .put("mixin.feature.snapshot_easter_egg", true)
             .put("mixin.feature.warn_missing_perf_mods", true)
             .put("mixin.feature.spark_profile_launch", false)