Fix rendering lag when skull's username is empty.

Common/src/main/java/customskinloader/fake/itf/FakeInterfaceManager.java

@@ -1,6 +1,5 @@
 package customskinloader.fake.itf;
 
-import java.io.IOException;
 import java.io.InputStream;
 import java.util.Optional;
 

Common/src/main/java/customskinloader/loader/MojangAPILoader.java

@@ -182,10 +182,14 @@ public static Map<MinecraftProfileTexture.Type, MinecraftProfileTexture> getText
         String json = new String(Base64.decodeBase64(value), StandardCharsets.UTF_8);
         MinecraftTexturesPayload result = GSON.fromJson(json, MinecraftTexturesPayload.class);
 
-        if (result == null || TextureUtil.AuthlibField.MINECRAFT_TEXTURES_PAYLOAD_TEXTURES.get(result) == null) {
+        if (result == null) {
             return Maps.newHashMap();
         }
-        return TextureUtil.AuthlibField.MINECRAFT_TEXTURES_PAYLOAD_TEXTURES.get(result);
+        Map<MinecraftProfileTexture.Type, MinecraftProfileTexture> textures = TextureUtil.AuthlibField.MINECRAFT_TEXTURES_PAYLOAD_TEXTURES.get(result);
+        if (textures == null) {
+            return Maps.newHashMap();
+        }
+        return textures;
     }
 
     @Override

Common/src/main/java/customskinloader/profile/DynamicSkullManager.java

@@ -123,7 +123,8 @@ public Map<MinecraftProfileTexture.Type, MinecraftProfileTexture> parseTextures(
         MinecraftProfileTexture skin = textures.get(MinecraftProfileTexture.Type.SKIN);
         String skinUrl = skin.getUrl();
         if (!HttpUtil0.isLocal(skinUrl))
-            return textures;
+            // Wrap MinecraftProfileTexture to FakeMinecraftProfileTexture
+            return ModelManager0.fromUserProfile(ModelManager0.toUserProfile(textures));
         File skinFile = new File(CustomSkinLoader.DATA_DIR, skinUrl);
         if (!skinFile.isFile())
             return Maps.newHashMap();

Dummy/src/main/java/net/minecraft/client/renderer/texture/TextureManager.java

@@ -4,6 +4,7 @@
 
 public class TextureManager {
     public ITextureObject getTexture(ResourceLocation location) { return null; }
-    public boolean loadTexture(ResourceLocation location, ITextureObject object) { return false; }
+    public void loadTexture(ResourceLocation location, AbstractTexture texture) {}
+    public boolean loadTexture(ResourceLocation location, ITextureObject texture) { return false; }
     public void registerAndLoad(ResourceLocation resourceLocation, ReloadableTexture reloadableTexture) {}
 }

Fabric/Fabric.tsrg

@@ -52,6 +52,7 @@ net/minecraft/client/renderer/texture/SimpleTexture net/minecraft/class_1049
 net/minecraft/client/renderer/texture/TextureContents net/minecraft/class_10539
 net/minecraft/client/renderer/texture/TextureManager net/minecraft/class_1060
 	getTexture (Lnet/minecraft/util/ResourceLocation;)Lnet/minecraft/client/renderer/texture/ITextureObject; method_4619
+	loadTexture (Lnet/minecraft/util/ResourceLocation;Lnet/minecraft/client/renderer/texture/AbstractTexture;)V method_4616
 	loadTexture (Lnet/minecraft/util/ResourceLocation;Lnet/minecraft/client/renderer/texture/ITextureObject;)Z method_4616
 	registerAndLoad (Lnet/minecraft/util/ResourceLocation;Lnet/minecraft/client/renderer/texture/ReloadableTexture;)V method_65876
 net/minecraft/client/resources/DefaultPlayerSkin net/minecraft/class_1068

Forge/V2/Forge.tsrg

@@ -52,6 +52,7 @@ net/minecraft/client/renderer/texture/SimpleTexture net/minecraft/client/rendere
 net/minecraft/client/renderer/texture/TextureContents net/minecraft/client/renderer/texture/TextureContents
 net/minecraft/client/renderer/texture/TextureManager net/minecraft/client/renderer/texture/TextureManager
 	getTexture (Lnet/minecraft/util/ResourceLocation;)Lnet/minecraft/client/renderer/texture/ITextureObject; func_110581_b
+	loadTexture (Lnet/minecraft/util/ResourceLocation;Lnet/minecraft/client/renderer/texture/AbstractTexture;)V m_118495_
 	loadTexture (Lnet/minecraft/util/ResourceLocation;Lnet/minecraft/client/renderer/texture/ITextureObject;)Z func_110579_a
 	registerAndLoad (Lnet/minecraft/util/ResourceLocation;Lnet/minecraft/client/renderer/texture/ReloadableTexture;)V registerAndLoad
 net/minecraft/client/resources/DefaultPlayerSkin net/minecraft/client/resources/DefaultPlayerSkin

Forge/V3/Forge.tsrg

@@ -52,6 +52,7 @@ net/minecraft/client/renderer/texture/SimpleTexture net/minecraft/client/rendere
 net/minecraft/client/renderer/texture/TextureContents net/minecraft/client/renderer/texture/TextureContents
 net/minecraft/client/renderer/texture/TextureManager net/minecraft/client/renderer/texture/TextureManager
 	getTexture (Lnet/minecraft/util/ResourceLocation;)Lnet/minecraft/client/renderer/texture/ITextureObject; getTexture
+	loadTexture (Lnet/minecraft/util/ResourceLocation;Lnet/minecraft/client/renderer/texture/AbstractTexture;)V register
 	loadTexture (Lnet/minecraft/util/ResourceLocation;Lnet/minecraft/client/renderer/texture/ITextureObject;)Z register
 	registerAndLoad (Lnet/minecraft/util/ResourceLocation;Lnet/minecraft/client/renderer/texture/ReloadableTexture;)V registerAndLoad
 net/minecraft/client/resources/DefaultPlayerSkin net/minecraft/client/resources/DefaultPlayerSkin

Vanilla/Common/src/main/java/customskinloader/mixin/MixinSkinTextureDownloader.java

@@ -21,6 +21,11 @@ public abstract class MixinSkinTextureDownloader {
         )
     )
     private static void redirect_lambda$registerTextureInManager$2(TextureManager manager, ResourceLocation location, AbstractTexture texture) {
-        manager.registerAndLoad(location, (ReloadableTexture) FakeInterfaceManager.ResourceLocation_getTexture(location));
+        Object texture0 = FakeInterfaceManager.ResourceLocation_getTexture(location);
+        if (texture0 != null) {
+            manager.registerAndLoad(location, (ReloadableTexture) texture0);
+        } else {
+            manager.loadTexture(location, texture);
+        }
     }
 }