Fix #6692

Thanks @AterAnimAvis for help and suggestions

Signed-off-by: cpw <cpw+github@weeksfamily.ca>

patches/minecraft/net/minecraft/client/MainWindow.java.patch

@@ -9,3 +9,11 @@
        if (monitor != null) {
           VideoMode videomode = monitor.func_197992_a(this.field_198125_l ? this.field_198124_k : Optional.empty());
           this.field_198120_g = this.field_198127_n = monitor.func_197989_c() + videomode.func_198064_a() / 2 - this.field_198129_p / 2;
+@@ -271,6 +271,7 @@
+       GLFW.glfwGetFramebufferSize(this.field_198119_f, aint, aint1);
+       this.field_198131_r = aint[0];
+       this.field_198132_s = aint1[0];
++      if (this.field_198132_s == 0 || this.field_198131_r==0) net.minecraftforge.fml.loading.progress.EarlyProgressVisualization.INSTANCE.updateFBSize(w->this.field_198131_r=w, h->this.field_198132_s=h);
+    }
+ 
+    private void func_198089_c(long p_198089_1_, int p_198089_3_, int p_198089_4_) {

src/fmllauncher/java/net/minecraftforge/fml/loading/progress/ClientVisualization.java

@@ -22,9 +22,7 @@ package net.minecraftforge.fml.loading.progress;
 import com.google.common.io.ByteStreams;
 import org.apache.commons.lang3.tuple.Pair;
 import org.apache.logging.log4j.LogManager;
-import org.lwjgl.glfw.GLFWErrorCallback;
+import org.lwjgl.glfw.*;
-import org.lwjgl.glfw.GLFWImage;
-import org.lwjgl.glfw.GLFWVidMode;
 import org.lwjgl.opengl.GL;
 import org.lwjgl.opengl.GL11;
 import org.lwjgl.opengl.GL14;
@@ -40,6 +38,7 @@ import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.nio.IntBuffer;
 import java.util.List;
+import java.util.function.IntConsumer;
 import java.util.function.IntSupplier;
 import java.util.function.LongSupplier;
 import java.util.function.Supplier;
@@ -58,6 +57,8 @@ class ClientVisualization implements EarlyProgressVisualization.Visualization {
     private Thread renderThread = new Thread(this::renderThreadFunc);
 
     private boolean running = true;
+    private GLFWFramebufferSizeCallback framebufferSizeCallback;
+    private int[] fbSize;
 
     private void initWindow() {
         GLFWErrorCallback.createPrint(System.err).set();
@@ -85,6 +86,7 @@ class ClientVisualization implements EarlyProgressVisualization.Visualization {
         if (window == NULL) {
             throw new RuntimeException("Failed to create the GLFW window"); // ignore it and make the GUI optional?
         }
+        framebufferSizeCallback = GLFWFramebufferSizeCallback.create(this::fbResize);
 
         try (MemoryStack stack = stackPush()) {
             IntBuffer pWidth = stack.mallocInt(1);
@@ -126,6 +128,11 @@ class ClientVisualization implements EarlyProgressVisualization.Visualization {
                 System.err.println("Failed to load forge logo");
             }
         }
+        int[] w = new int[1];
+        int[] h = new int[1];
+        glfwGetFramebufferSize(window, w, h);
+        fbSize = new int[] {w[0], h[0]};
+        glfwSetFramebufferSizeCallback(window, framebufferSizeCallback);
         glfwShowWindow(window);
         glfwPollEvents();
     }
@@ -220,6 +227,11 @@ class ClientVisualization implements EarlyProgressVisualization.Visualization {
         glVertex2f(screenWidth, 0);
         glEnd();
     }
+    private void fbResize(long window, int width, int height) {
+        if (window == this.window && width != 0 && height != 0) {
+            fbSize = new int[] {width, height};
+        }
+    }
 
     private void renderMessages() {
         List<Pair<Integer, StartupMessageManager.Message>> messages = StartupMessageManager.getMessages();
@@ -233,6 +245,12 @@ class ClientVisualization implements EarlyProgressVisualization.Visualization {
         renderMemoryInfo();
     }
 
+    @Override
+    public void updateFBSize(final IntConsumer width, final IntConsumer height) {
+        width.accept(this.fbSize[0]);
+        height.accept(this.fbSize[1]);
+    }
+
     private static final float[] memorycolour = new float[] { 0.0f, 0.0f, 0.0f};
 
     private void renderMemoryInfo() {
@@ -309,6 +327,8 @@ class ClientVisualization implements EarlyProgressVisualization.Visualization {
         glfwSwapInterval(0);
         glfwSwapBuffers(window);
         glfwSwapInterval(1);
+        final GLFWFramebufferSizeCallback previous = glfwSetFramebufferSizeCallback(window, null);
+        previous.free();
         return window;
     }
 }

src/fmllauncher/java/net/minecraftforge/fml/loading/progress/EarlyProgressVisualization.java

@@ -22,6 +22,7 @@ package net.minecraftforge.fml.loading.progress;
 import net.minecraftforge.api.distmarker.Dist;
 
 import java.util.Locale;
+import java.util.function.IntConsumer;
 import java.util.function.IntSupplier;
 import java.util.function.LongSupplier;
 import java.util.function.Supplier;
@@ -40,6 +41,10 @@ public enum EarlyProgressVisualization {
         return visualization.handOffWindow(width, height, title, monitor);
     }
 
+    public void updateFBSize(IntConsumer width, IntConsumer height) {
+        visualization.updateFBSize(width, height);
+    }
+
     interface Visualization {
         Runnable start();
 
@@ -51,6 +56,9 @@ public enum EarlyProgressVisualization {
                 }
             }.getAsLong();
         }
+
+        default void updateFBSize(IntConsumer width, IntConsumer height) {
+        }
     }
 
     private static class NoVisualization implements Visualization {