From 4e420739d65597111ff098723c6a5a81d1db6a4e Mon Sep 17 00:00:00 2001
From: adam <adam>
Date: Tue, 20 Apr 2010 08:48:34 +0000
Subject: [PATCH] fix on windows ...

---
 src/OpenGLUtils/OpenGLUtils_FrameBuffer.cxx | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/OpenGLUtils/OpenGLUtils_FrameBuffer.cxx b/src/OpenGLUtils/OpenGLUtils_FrameBuffer.cxx
index 87357ec47..a503d38d0 100755
--- a/src/OpenGLUtils/OpenGLUtils_FrameBuffer.cxx
+++ b/src/OpenGLUtils/OpenGLUtils_FrameBuffer.cxx
@@ -165,6 +165,9 @@ bool OpenGLUtils_FrameBuffer::init( const GLsizei& xSize, const GLsizei& ySize )
 
 void OpenGLUtils_FrameBuffer::release()
 {
+  if( !IsEXTInitialized )
+    return;
+
   glDeleteTextures( 1, &textureId );
   textureId = 0;
 
@@ -177,10 +180,16 @@ void OpenGLUtils_FrameBuffer::release()
 
 void OpenGLUtils_FrameBuffer::bind()
 {
+  if( !IsEXTInitialized )
+    return;
+
   vglBindFramebufferEXT( GL_FRAMEBUFFER_EXT, fboId );
 }
 
 void OpenGLUtils_FrameBuffer::unbind()
 {
+  if( !IsEXTInitialized )
+    return;
+
   vglBindFramebufferEXT( GL_FRAMEBUFFER_EXT, 0 );
 }
-- 
2.39.2