Cygwin/X + OpenGL release notes

[Alexander Gottwald]

Hi,

I've added the information about Cygwin/X and OpenGL below to RELNOTES
in the CYGWIN branch. Should they be added to RELNOTES in RELEASE-1 too?

bye
    ago

Committed by: ago

Update of /cvs/xorg/xc
In directory pdx:/tmp/cvs-serv10978

Modified Files:
      Tag: CYGWIN
	RELNOTES
Log Message:
additional release notes regarding Cygwin/X native OpenGL support

Index: RELNOTES
===================================================================
RCS file: /cvs/xorg/xc/RELNOTES,v
retrieving revision 1.1.1.8.2.2
retrieving revision 1.1.1.8.2.3
diff -u -d -r1.1.1.8.2.2 -r1.1.1.8.2.3
--- a/RELNOTES	1 Apr 2004 13:20:52 -0000	1.1.1.8.2.2
+++ b/RELNOTES	3 Apr 2004 18:57:01 -0000	1.1.1.8.2.3
@@ -324,6 +324,42 @@

    o Merged in work on the NativeGDI engine. (Alan Hourihane)

+3.2.3  OpenGL with Cygwin/X
+
+Cygwin/X has supported GLX only with software rendering provided by the Mesa
+library. Starting with X11R6.7 we add support for hardware accelerated OpenGL.
+
+This support is still under development and still has some bigger problems.
+To provide both versions (the stable software rendering and the new hardware
+accelerated) we ship to binaries. XWin.exe contains the software rendering
+and XWin_GL.exe uses the hardware acceleration provided by the windows drivers.
+
+The known problems with hardware accelerated OpenGL are:
+
+   o Only multiwindow mode is useful. In the other modes the OpenGL output
+     does not align with the X11 windows.
+
+   o Using two programs which require different visuals will fail. For example
+     glxgears and glxinfo will not work without restarting XWin_GL.exe.
+
+   o OpenGL extensions and functions from OpenGL 1.2 and later should work
+     but are not completely tested.
+
+   o The standard Windows OpenGL driver will produce no output. Use the one
+     from your video adapter vendor.
+
+If you notice problems with some programs please send a message with the
+logfile /tmp/XWin.log and a short error description to <cygwin-xfree at cygwin.com>
+
+The hardware accelerated OpenGL was tested using:
+
+   o glxgears
+   o glxinfo
+   o blender
+   o tuxkart
+   o GLUT demos (some did fail)
+   o tuxracer (currently not working)
+
 3.3  Video Driver Enhancements

    o Several stability issues with the support for the Intel 830M, 845G,


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