Mark Danks wrote:

<snip - nvidia drivers>

...

headers, and indeed, Gem looks far more stable (especially when destroying the Gem-window-context; this led to crashes on the old hybrid mesa/open-GL GEM is used

This is good news. I didn't think that I was doing anything wrong in the OpenGL context code...it is nice to know that it is probably just the driver.

<snip - GLenum stuff>

I do not have any casts in my original Win32/IRIX sources. What is the exact format that Linux wants? I will put that into the main source code.

that's exactly what i talked about (for no real reason, except to let anybody know) you (and i guess all those who have the dubious luck of using Win32, including me) do not have the need of casting anything (concerned with the GLenum); all those boys and girls who are doing mesa stuff (and this is, as i think, the bid deal of audio-interested linux-users that want to do "some" graphic-stuff and not have to invest much in expensive cards) will have to do a (enum GLenum) cast whenever a GLenum appears again my example:: your original code m_drawtype = GL_FILL; mesa code m_drawtype = (enum GLenum) GL_FILL; now nvidia released their linux-driver which have real hardware support of real openGL which has little to do with the weird world of mesaGL therefore the correct code in the linux/nvidia-context would be again m_drawtype = GL_FILL; to save keyboard i only deleted the "enum", wich results in a redundant cast m_drawtype = (GLenum) GL_FILL;

hope this makes the problem clear :: how to write "good" code ? maybe we should use precompiler directives like

#ifdef MESA #define GLENUM_CAST (enum GLenum) #else #define GLENUM_CAST #endif

m_drawtype = GLENUM_CAST GL_FILL;

or something mfg.else.fsda iohannes