Utility class for displaying VRAM information for Nvidia cards

Author: Anuken

core/src/mindustry/ClientLauncher.java

@@ -55,6 +55,9 @@ public void setup(){
         Log.info("[GL] Version: @", graphics.getGLVersion());
         Log.info("[GL] Max texture size: @", maxTextureSize);
         Log.info("[GL] Using @ context.", gl30 != null ? "OpenGL 3" : "OpenGL 2");
+        if(NvGpuInfo.hasMemoryInfo()){
+            Log.info("[GL] Total available VRAM: @mb", NvGpuInfo.getMaxMemoryKB()/1024);
+        }
         if(maxTextureSize < 4096) Log.warn("[GL] Your maximum texture size is below the recommended minimum of 4096. This will cause severe performance issues.");
         Log.info("[JAVA] Version: @", OS.javaVersion);
         if(Core.app.isAndroid()){

core/src/mindustry/graphics/NvGpuInfo.java

@@ -0,0 +1,28 @@
+package mindustry.graphics;
+
+import arc.*;
+import arc.graphics.*;
+
+/** Nvidia-specific utility class for querying GPU VRAM information. */
+public class NvGpuInfo{
+    private static final int GL_GPU_MEM_INFO_TOTAL_AVAILABLE_MEM_NVX = 0x9048;
+    private static final int GL_GPU_MEM_INFO_CURRENT_AVAILABLE_MEM_NVX = 0x9049;
+
+    private static boolean supported, initialized;
+
+    public static int getMaxMemoryKB(){
+        return hasMemoryInfo() ? Gl.getInt(GL_GPU_MEM_INFO_TOTAL_AVAILABLE_MEM_NVX) : 0;
+    }
+
+    public static int getAvailableMemoryKB(){
+        return hasMemoryInfo() ? Gl.getInt(GL_GPU_MEM_INFO_CURRENT_AVAILABLE_MEM_NVX) : 0;
+    }
+
+    public static boolean hasMemoryInfo(){
+        if(!initialized){
+            supported = Core.graphics.supportsExtension("GL_NVX_gpu_memory_info");
+            initialized = true;
+        }
+        return supported;
+    }
+}

core/src/mindustry/net/CrashHandler.java

@@ -34,7 +34,7 @@ public static String createReport(Throwable exception){
         + ((OS.isAndroid || OS.isIos) && app != null ? "Android API level: " + Core.app.getVersion() + "\n" : "")
         + "Java Version: " + OS.javaVersion + "\n"
         + "Runtime Available Memory: " + (Runtime.getRuntime().maxMemory() / 1024 / 1024) + "mb\n"
-        + "Cores: " + Runtime.getRuntime().availableProcessors() + "\n"
+        + "Cores: " + OS.cores + "\n"
         + (cause == null ? "" : "Likely Cause: " + cause.meta.displayName + " (" + cause.name + " v" + cause.meta.version + ")\n")
         + (mods == null ? "<no mod init>" : "Mods: " + (!mods.list().contains(LoadedMod::shouldBeEnabled) ? "none (vanilla)" : mods.list().select(LoadedMod::shouldBeEnabled).toString(", ", mod -> mod.name + ":" + mod.meta.version)))
         + "\n\n" + error;