From 1641cd7b54270a7fa5d8ca48f3a4d1da6001fe6b Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Thu, 16 Jun 2005 13:53:52 +0000
Subject: [PATCH] From Pavel Moloshtan, added support of
 Drawable::Extensions::glDeleteQueries()

---
 include/osg/Drawable | 1 +
 src/osg/Drawable.cpp | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/include/osg/Drawable b/include/osg/Drawable
index 1d00ae7f7..701e13f09 100644
--- a/include/osg/Drawable
+++ b/include/osg/Drawable
@@ -607,6 +607,7 @@ class OSG_EXPORT Drawable : public Object
             void glBeginQuery(GLenum target, GLuint id) const;
             void glEndQuery(GLenum target) const;
             GLboolean glIsQuery(GLuint id) const;
+            void glDeleteQueries(GLsizei n, const GLuint *ids) const;
             void glGetQueryObjectiv(GLuint id, GLenum pname, GLint *params) const;
             void glGetQueryObjectuiv(GLuint id, GLenum pname, GLuint *params) const;
 
diff --git a/src/osg/Drawable.cpp b/src/osg/Drawable.cpp
index e925f9fea..3a18f9d6f 100644
--- a/src/osg/Drawable.cpp
+++ b/src/osg/Drawable.cpp
@@ -1294,6 +1294,14 @@ GLboolean Drawable::Extensions::glIsQuery(GLuint id) const
   return false;
 }
 
+void Drawable::Extensions::glDeleteQueries(GLsizei n, const GLuint *ids) const
+{
+    if (_gl_delete_queries_arb) 
+        _gl_delete_queries_arb(n, ids);
+    else
+        osg::notify(osg::WARN) << "Error: glIsQuery not supported by OpenGL driver" << std::endl;
+}
+
 void Drawable::Extensions::glGetQueryObjectiv(GLuint id, GLenum pname, GLint *params) const
 {
   if (_gl_get_query_objectiv_arb)