From 224408b0e8f3ebc7c5d6caab2773fae52f72614a Mon Sep 17 00:00:00 2001
From: ehofman <ehofman>
Date: Thu, 26 Jan 2006 09:15:42 +0000
Subject: [PATCH] Add support for point sprites.

---
 simgear/screen/extensions.hxx | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/simgear/screen/extensions.hxx b/simgear/screen/extensions.hxx
index b5929e1e..96439ad0 100644
--- a/simgear/screen/extensions.hxx
+++ b/simgear/screen/extensions.hxx
@@ -568,6 +568,26 @@ typedef void (*glXQueryDrawableProc) (Display *, GLXDrawable, int, unsigned int
 #define GL_LUMINANCE_ALPHA_FLOAT16_ATI				0x881F
 #endif
 
+/*
+ * ARB point sprite
+ */
+#ifndef GL_ARB_point_sprite
+#define GL_ARB_point_sprite 1
+#define GL_POINT_SPRITE_ARB               0x8861
+#define GL_COORD_REPLACE_ARB              0x8862
+#endif
+
+#ifndef GL_NV_point_sprite
+#define GL_NV_point_sprite 1
+#define GL_POINT_SPRITE_NV                0x8861
+#define GL_COORD_REPLACE_NV               0x8862
+#define GL_POINT_SPRITE_R_MODE_NV         0x8863
+#endif
+
+#ifndef GL_VERSION_2_0
+#define GL_POINT_SPRITE                   0x8861
+#endif
+
 /*
  * ARB_vertex_program
  */
@@ -880,5 +900,6 @@ typedef void (APIENTRY * glProgramParameter4fvNVProc) (GLenum target, GLuint ind
 }
 #endif
 
+
 #endif // !__SG_EXTENSIONS_HXX
 
-- 
2.39.5