From eabb523aa45f3d8940cadac197ef1225fbfd5c56 Mon Sep 17 00:00:00 2001
From: Daniel Czarnowski <daniel.czarnowski@intel.com>
Date: Mon, 21 Oct 2013 19:45:35 +0200
Subject: [PATCH] glx: Allow float renderType in glXCreateContextAttribsARB

This enables GLX_RGBA_FLOAT_TYPE_ARB and
GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT as valid renderType parameters to
glXCreateContextAttribsARB.

v2 (idr) : Use C-style comments and fix word wrapping.  Re-write commit
message.

Signed-off-by: Daniel Czarnowski <daniel.czarnowski@intel.com>
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
---
 glx/createcontext.c |  2 ++
 glx/glxext.h        | 16 ++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/glx/createcontext.c b/glx/createcontext.c
index 13d21ccb9..41ecd118f 100644
--- a/glx/createcontext.c
+++ b/glx/createcontext.c
@@ -68,6 +68,8 @@ validate_render_type(uint32_t render_type)
     switch (render_type) {
     case GLX_RGBA_TYPE:
     case GLX_COLOR_INDEX_TYPE:
+    case GLX_RGBA_FLOAT_TYPE_ARB:
+    case GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT:
         return True;
     default:
         return False;
diff --git a/glx/glxext.h b/glx/glxext.h
index 9b0978b93..3f2dee696 100644
--- a/glx/glxext.h
+++ b/glx/glxext.h
@@ -35,6 +35,22 @@
  * Silicon Graphics, Inc.
  */
 
+/* doing #include <GL/glx.h> & #include <GL/glxext.h> could cause problems
+ * with overlapping definitions, so let's use the easy way
+ */
+#ifndef GLX_RGBA_FLOAT_BIT_ARB
+#define GLX_RGBA_FLOAT_BIT_ARB             0x00000004
+#endif
+#ifndef GLX_RGBA_FLOAT_TYPE_ARB
+#define GLX_RGBA_FLOAT_TYPE_ARB            0x20B9
+#endif
+#ifndef GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT
+#define GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT    0x00000008
+#endif
+#ifndef GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT
+#define GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT   0x20B1
+#endif
+
 extern GLboolean __glXFreeContext(__GLXcontext * glxc);
 extern void __glXFlushContextCache(void);