Added gluErrorString

src/java/org/lwjgl/opengl/GL12.java

@@ -49,6 +49,10 @@ import java.nio.ShortBuffer;
  */
 
 public final class GL12 {
+	/* Error codes */
+	public static final int GL_TABLE_TOO_LARGE                = 0x8031;
+
+	/* Enums */
 	public static final int GL_PACK_SKIP_IMAGES               = 0x806B;
 	public static final int GL_PACK_IMAGE_HEIGHT              = 0x806C;
 	public static final int GL_UNPACK_SKIP_IMAGES             = 0x806D;

src/java/org/lwjgl/opengl/OpenGLException.java

@@ -32,6 +32,8 @@
 
 package org.lwjgl.opengl;
 
+import org.lwjgl.opengl.glu.GLU;
+
 /**
  * $Id$
  *
@@ -47,7 +49,12 @@ public class OpenGLException extends RuntimeException {
 	 * Constructor for OpenGLException.
 	 */
 	public OpenGLException(int gl_error_code) {
-		super("GL error code: " + gl_error_code);
+		this(createErrorMessage(gl_error_code));
+	}
+
+	private final static String createErrorMessage(int gl_error_code) {
+		String error_string = GLU.gluErrorString(gl_error_code);
+		return error_string + " (" + gl_error_code + ")";
 	}
 
 	/**

src/java/org/lwjgl/opengl/glu/GLU.java

@@ -5,6 +5,7 @@ import java.nio.FloatBuffer;
 import java.nio.IntBuffer;
 
 import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GL12;
 
 /**
  * GLU.java
@@ -200,4 +201,32 @@ public class GLU implements GLUConstants {
 		return MipMap.gluScaleImage(format, widthIn, heightIn, typeIn, dataIn, widthOut, heightOut, typeOut, dataOut);
 	}
 
+	public static String gluErrorString(int error_code) {
+		switch (error_code) {
+			case GL11.GL_NO_ERROR:
+				return "No error";
+			case GL11.GL_INVALID_ENUM:
+				return "Invalid enum";
+			case GL11.GL_INVALID_VALUE:
+				return "Invalid value";
+			case GL11.GL_INVALID_OPERATION:
+				return "Invalid operation";
+			case GL11.GL_STACK_OVERFLOW:
+				return "Stack overflow";
+			case GL11.GL_STACK_UNDERFLOW:
+				return "Stack underflow";
+			case GL11.GL_OUT_OF_MEMORY:
+				return "Out of memory";
+			case GL12.GL_TABLE_TOO_LARGE:
+				return "Table too large";
+			case GLU.GLU_INVALID_ENUM:
+				return "Invalid enum (glu)";
+			case GLU.GLU_INVALID_VALUE:
+				return "Invalid value (glu)";
+			case GLU.GLU_OUT_OF_MEMORY:
+				return "Out of memory (glu)";
+			default:
+				return null;
+		}
+	}
 }