On Mon, Sep 25, 2000 at 02:36:32PM +0200, Marcus Brinkmann <[EMAIL PROTECTED]> was heard to say: > > (4) Now that X runs successfully, will OpenGL compile under the hurd? > > I don't know what OpenGL is, so I can't tell. I only know that it has > something > to do with graphics. If it needs direct access to the card, > you'd have to port the mach code from X (if OpenGL already supports Mach, > than it should be fairly straightforward). If it only uses X and other > library interfaces, then it should be rather straight.
OpenGL is a graphics API, usually used for 3D (although it can be forced to draw in 2D as well). It can be implemented using the standard X protocol, in which case all the calculation happens on the client side (the mesag3 package does this), or in the X server with the GLX protocol extension. If the X server supports GLX, it may or may not use the hardware directly. XFree86 4.0 also has a special architecture called "DRI", which (on Linux) seems to need some kernel support. It lets programs more-or-less directly access the graphics hardware, and improves performance substantially. <EDITORIAL>It's also really clean and nice to write for.</EDITORIAL> So the normal mesa packages shouldn't be hard to port, but I expect that Utah-GLX and DRI will be a pain (I don't even know much about how they work..) Daniel -- /----------------- Daniel Burrows <[EMAIL PROTECTED]> -----------------\ | X is the second worst window system ever invented. | | Everything else is tied for first. | \---- Be like the kid in the movie! Play chess! -- http://www.uschess.org ---/
