Disable voxy if on unsupported system

src/main/java/me/cortex/voxy/client/VoxyClient.java

@@ -1,15 +1,30 @@
 package me.cortex.voxy.client;
 
+import me.cortex.voxy.client.core.gl.Capabilities;
+import me.cortex.voxy.common.Logger;
 import me.cortex.voxy.commonImpl.VoxyCommon;
 import net.fabricmc.api.ClientModInitializer;
         import net.fabricmc.fabric.api.client.command.v2.ClientCommandRegistrationCallback;
+import net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents;
 
 public class VoxyClient implements ClientModInitializer {
     @Override
     public void onInitializeClient() {
-        ClientCommandRegistrationCallback.EVENT.register((dispatcher, registryAccess) -> {
-            dispatcher.register(VoxyCommands.register());
-        });
+
+        ClientLifecycleEvents.CLIENT_STARTED.register(client->{
+            boolean systemSupported = Capabilities.INSTANCE.compute && Capabilities.INSTANCE.indirectParameters;
+            if (systemSupported) {
                 VoxyCommon.setInstanceFactory(VoxyClientInstance::new);
+            } else {
+                Logger.error("Voxy is unsupported on your system.");
+            }
+        });
+
+
+        ClientCommandRegistrationCallback.EVENT.register((dispatcher, registryAccess) -> {
+            if (VoxyCommon.isAvailable()) {
+                dispatcher.register(VoxyCommands.register());
+            }
+        });
     }
 }

src/main/java/me/cortex/voxy/client/config/ModMenuIntegration.java

@@ -3,12 +3,14 @@ package me.cortex.voxy.client.config;
 import com.terraformersmc.modmenu.api.ConfigScreenFactory;
 import com.terraformersmc.modmenu.api.ModMenuApi;
 import me.cortex.voxy.common.Logger;
+import me.cortex.voxy.commonImpl.VoxyCommon;
 import net.caffeinemc.mods.sodium.client.gui.SodiumOptionsGUI;
 
 public class ModMenuIntegration implements ModMenuApi {
     @Override
     public ConfigScreenFactory<?> getModConfigScreenFactory() {
         return parent -> {
+            if (VoxyCommon.isAvailable()) {
                 var screen = (SodiumOptionsGUI) SodiumOptionsGUI.createScreen(parent);
                 //Sorry jelly and douira, please dont hurt me
                 try {
@@ -22,6 +24,9 @@ public class ModMenuIntegration implements ModMenuApi {
                     Logger.error("Failed to set the current page to voxy", e);
                 }
                 return screen;
+            } else {
+                return null;
+            }
         };
     }
 }

src/main/java/me/cortex/voxy/client/config/VoxyConfig.java

@@ -4,6 +4,7 @@ import com.google.gson.FieldNamingPolicy;
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import me.cortex.voxy.common.Logger;
+import me.cortex.voxy.commonImpl.VoxyCommon;
 import net.caffeinemc.mods.sodium.client.gui.options.storage.OptionStorage;
 import net.fabricmc.loader.api.FabricLoader;
 
@@ -32,6 +33,7 @@ public class VoxyConfig implements OptionStorage<VoxyConfig> {
     public boolean renderStatistics = false;
 
     public static VoxyConfig loadOrCreate() {
+        if (VoxyCommon.isAvailable()) {
             var path = getConfigPath();
             if (Files.exists(path)) {
                 try (FileReader reader = new FileReader(path.toFile())) {
@@ -43,12 +45,18 @@ public class VoxyConfig implements OptionStorage<VoxyConfig> {
                         Logger.error("Failed to load voxy config, resetting");
                     }
                 } catch (IOException e) {
-                Logger.error("Could not parse config",e);
+                    Logger.error("Could not parse config", e);
                 }
             }
             var config = new VoxyConfig();
             config.save();
             return config;
+        } else {
+            var config = new VoxyConfig();
+            config.enabled = false;
+            config.enableRendering = false;
+            return config;
+        }
     }
 
     public void save() {

src/main/java/me/cortex/voxy/client/core/gl/Capabilities.java

@@ -20,8 +20,12 @@ public class Capabilities {
     public final boolean canQueryGpuMemory;
     public final long totalDedicatedMemory;//Bytes, dedicated memory
     public final long totalDynamicMemory;//Bytes, total allocation memory - dedicated memory
+    public final boolean compute;
+    public final boolean indirectParameters;
     public Capabilities() {
         var cap = GL.getCapabilities();
+        this.compute = cap.glDispatchComputeIndirect != 0;
+        this.indirectParameters = cap.glMultiDrawElementsIndirectCountARB != 0;
         this.meshShaders = cap.GL_NV_mesh_shader && cap.GL_NV_representative_fragment_test;
         this.canQueryGpuMemory = cap.GL_NVX_gpu_memory_info;
         //this.INT64_t = cap.GL_ARB_gpu_shader_int64 || cap.GL_AMD_gpu_shader_int64;

src/main/java/me/cortex/voxy/client/mixin/minecraft/MixinClientLoginNetworkHandler.java

@@ -22,9 +22,11 @@ import java.util.function.Consumer;
 public class MixinClientLoginNetworkHandler {
     @Inject(method = "<init>", at = @At(value = "TAIL"))
     private void voxy$init(ClientConnection connection, MinecraftClient client, ServerInfo serverInfo, Screen parentScreen, boolean newWorld, Duration worldLoadTime, Consumer statusConsumer, CookieStorage cookieStorage, CallbackInfo ci) {
+        if (VoxyCommon.isAvailable()) {
             VoxyClientInstance.isInGame = true;
             if (VoxyConfig.CONFIG.enabled) {
                 VoxyCommon.createInstance();
             }
         }
+    }
 }

src/main/java/me/cortex/voxy/client/mixin/minecraft/MixinMinecraftClient.java

@@ -16,9 +16,11 @@ import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 public class MixinMinecraftClient {
     @Inject(method = "disconnect(Lnet/minecraft/client/gui/screen/Screen;Z)V", at = @At("TAIL"))
     private void voxy$injectWorldClose(CallbackInfo ci) {
+        if (VoxyCommon.isAvailable()) {
             VoxyCommon.shutdownInstance();
             VoxyClientInstance.isInGame = false;
         }
+    }
 
     /*
     @Inject(method = "joinWorld", at = @At(value = "INVOKE", target = "Lnet/minecraft/client/MinecraftClient;setWorld(Lnet/minecraft/client/world/ClientWorld;)V", shift = At.Shift.BEFORE))

src/main/java/me/cortex/voxy/client/mixin/sodium/MixinSodiumOptionsGUI.java

@@ -1,6 +1,7 @@
 package me.cortex.voxy.client.mixin.sodium;
 
 import me.cortex.voxy.client.config.VoxyConfigScreenPages;
+import me.cortex.voxy.commonImpl.VoxyCommon;
 import net.caffeinemc.mods.sodium.client.gui.SodiumOptionsGUI;
 import net.caffeinemc.mods.sodium.client.gui.options.OptionPage;
 import net.minecraft.client.gui.screen.Screen;
@@ -19,6 +20,8 @@ public class MixinSodiumOptionsGUI {
 
     @Inject(method = "<init>", at = @At("TAIL"))
     private void voxy$addConfigPage(Screen prevScreen, CallbackInfo ci) {
+        if (VoxyCommon.isAvailable()) {
             this.pages.add(VoxyConfigScreenPages.voxyOptionPage = VoxyConfigScreenPages.page());
         }
+    }
 }

src/main/java/me/cortex/voxy/commonImpl/VoxyCommon.java

@@ -66,12 +66,18 @@ public class VoxyCommon implements ModInitializer {
     }
 
     public static void createInstance() {
+        if (FACTORY == null) {
+            //Logger.info("Voxy factory");
+            return;
+        }
         if (INSTANCE != null) {
             throw new IllegalStateException("Cannot create multiple instances");
         }
-        if (FACTORY == null) {
-            throw new IllegalStateException("Instance factory null");
-        }
         INSTANCE = FACTORY.create();
     }
+
+    //Is voxy available in any capacity
+    public static boolean isAvailable() {
+        return FACTORY != null;
+    }
 }