From 4ce28752626102a2acfcc8a72e057eb2e86b4ad4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Sun, 24 May 2015 20:08:53 +0200
Subject: [PATCH] Disable glDrawRangeElements() on WebGL 2.

It currently crashes Firefox (38) on "Not Implemented" assert, so just
call glDrawElements() instead until it is properly implemented.
---
 src/Magnum/Mesh.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Magnum/Mesh.cpp b/src/Magnum/Mesh.cpp
index 15c682d32..5d00a29b4 100644
--- a/src/Magnum/Mesh.cpp
+++ b/src/Magnum/Mesh.cpp
@@ -279,7 +279,8 @@ void Mesh::drawInternal(Int count, Int baseVertex, Int instanceCount, GLintptr i
 
         /* Indexed mesh */
         } else {
-            #ifndef MAGNUM_TARGET_GLES2
+            /** @todo re-enable for WebGL 2.0 when glDrawRangeElements() no longer crashes Firefox */
+            #if !defined(MAGNUM_TARGET_GLES2) && !defined(MAGNUM_TARGET_WEBGL)
             /* Indexed mesh with specified range */
             if(indexEnd) {
                 glDrawRangeElements(GLenum(_primitive), indexStart, indexEnd, count, GLenum(_indexType), reinterpret_cast<GLvoid*>(indexOffset));