From 20ed6e333ccf778ecc8e9fb640674176b16ae09c Mon Sep 17 00:00:00 2001
From: Hannes Janetzek <hannes.janetzek@gmail.com>
Date: Fri, 28 Jun 2013 04:03:11 +0200
Subject: [PATCH] workaround for libgdx only creating one texture at once..

---
 vtm/src/org/oscim/backend/GLAdapter.java |  8 +++++---
 vtm/src/org/oscim/utils/GlUtils.java     | 25 +++++++++++++++---------
 2 files changed, 21 insertions(+), 12 deletions(-)

diff --git a/vtm/src/org/oscim/backend/GLAdapter.java b/vtm/src/org/oscim/backend/GLAdapter.java
index 2fb12867..766a1d06 100644
--- a/vtm/src/org/oscim/backend/GLAdapter.java
+++ b/vtm/src/org/oscim/backend/GLAdapter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013
+ * Copyright 2013 Hannes Janetzek
  *
  * This program is free software: you can redistribute it and/or modify it under the
  * terms of the GNU Lesser General Public License as published by the Free Software
@@ -14,10 +14,12 @@
  */
 package org.oscim.backend;
 
-//import com.badlogic.gdx.backends.android.AndroidGL20;
 
 public class GLAdapter {
-	public static GL20 INSTANCE; //= new AndroidGL20();
+	public static GL20 INSTANCE;
+
+	public static boolean GDX_WEBGL_QUIRKS;
+	public static boolean NON_PREMUL_CANVAS;
 
 	public static GL20 get(){
 		return INSTANCE;
diff --git a/vtm/src/org/oscim/utils/GlUtils.java b/vtm/src/org/oscim/utils/GlUtils.java
index fb3c3fe1..bb2dfc27 100644
--- a/vtm/src/org/oscim/utils/GlUtils.java
+++ b/vtm/src/org/oscim/utils/GlUtils.java
@@ -238,7 +238,7 @@ public class GlUtils {
 		GL = GLAdapter.get();
 
 		int error;
-		while ((error = GL.glGetError()) != 0) { //GL20.GL_NO_ERROR) {
+		while ((error = GL.glGetError()) != 0) { // GL20.GL_NO_ERROR) {
 			Log.e(TAG, op + ": glError " + error);
 			// throw new RuntimeException(op + ": glError " + error);
 		}
@@ -366,15 +366,22 @@ public class GlUtils {
 
 	public static int[] glGenTextures(int num) {
 		GL = GLAdapter.get();
-
-		IntBuffer buf = GLRenderer.getIntBuffer(num);
-		buf.position(0);
-		buf.limit(num);
-		GL.glGenTextures(num, buf);
 		int[] ret = new int[num];
-		buf.position(0);
-		buf.limit(num);
-		buf.get(ret);
+		IntBuffer buf = GLRenderer.getIntBuffer(num);
+
+		if (GLAdapter.GDX_WEBGL_QUIRKS) {
+			for (int i = 0; i < num; i++) {
+				GL.glGenTextures(num, buf);
+				buf.position(0);
+				ret[i] = buf.get();
+				buf.position(0);
+			}
+		} else {
+			GL.glGenTextures(num, buf);
+			buf.position(0);
+			buf.get(ret);
+		}
+
 		return ret;
 	}