SF.net SVN: alleg:[12024] allegro/branches/4.9/src/win/wgl_disp.c

[<mm...@us...>]

Revision: 12024
          http://alleg.svn.sourceforge.net/alleg/?rev=12024&view=rev
Author:   mmimica
Date:     2009-04-04 21:10:21 +0000 (Sat, 04 Apr 2009)

Log Message:
-----------
Add/fix some checks for WGL extensions.

Modified Paths:
--------------
    allegro/branches/4.9/src/win/wgl_disp.c

Modified: allegro/branches/4.9/src/win/wgl_disp.c
===================================================================
--- allegro/branches/4.9/src/win/wgl_disp.c	2009-04-04 20:58:40 UTC (rev 12023)
+++ allegro/branches/4.9/src/win/wgl_disp.c	2009-04-04 21:10:21 UTC (rev 12024)
@@ -656,7 +656,7 @@
    if (!testrc)
       goto bail;
 
-   if (is_wgl_extension_supported("wglCreateContextAttribsARB", testdc)) {
+   if (is_wgl_extension_supported("WGL_ARB_create_context", testdc)) {
       int attrib[] = {WGL_CONTEXT_MAJOR_VERSION_ARB, major,
                       WGL_CONTEXT_MINOR_VERSION_ARB, minor,
                       WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB, fc,
@@ -718,6 +718,12 @@
    if (!testrc)
       goto bail;
 
+  if (!is_wgl_extension_supported("WGL_ARB_pixel_format", testdc) &&
+      !is_wgl_extension_supported("WGL_EXT_pixel_format", testdc)) {
+      ALLEGRO_ERROR("WGL_ARB/EXT_pf not supported.\n");
+      goto bail;
+  }
+
    if (!init_pixel_format_extensions())
       goto bail;
 


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