From febd7757fc122f34c1752a729e504840f1fe53db Mon Sep 17 00:00:00 2001
From: vrld <vrld@vrld.org>
Date: Mon, 5 Mar 2012 20:58:17 +0100
Subject: [PATCH] Make sure all error flags are cleared before calling
 glBufferDataARB() in VBO::load().

---
 src/modules/graphics/opengl/VertexBuffer.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/modules/graphics/opengl/VertexBuffer.cpp b/src/modules/graphics/opengl/VertexBuffer.cpp
index 07959545b..7667af70b 100644
--- a/src/modules/graphics/opengl/VertexBuffer.cpp
+++ b/src/modules/graphics/opengl/VertexBuffer.cpp
@@ -194,8 +194,10 @@ namespace opengl
 		// Copy the old buffer only if 'restore' was requested.
 		const GLvoid *src = restore ? buffer_copy : 0;
 
+		while (GL_NO_ERROR != glGetError())
+			/* clear error messages */;
+
 		// Note that if 'src' is '0', no data will be copied.
-		glGetError();
 		glBufferDataARB(getTarget(), getSize(), src, getUsage());
 		GLenum err = glGetError();