On Mon, 11 Oct 2004, Ian Romanick wrote:
I was trying to test the latest version of my ReadPixels work to make sure I didn't break anything on big-endian. However, it seems someone beat me to it in the Rage128 driver. :) In a nutshell, I can get one frame of gears, and then the 3D engine is toast. After that frame is drawn, gears is at 100% and X is unresponsive. When I kill gears, everything goes back to semi-normal. If I run another 3D program, I get an empty (just a frame!) window.
Looking at the output from R128_DEBUG=all, it appears to be stuck in r128EmitHwStateLocked.
That single frame of gears is also wrong. The colors are pinks and purples. I suspect this may just be a byte-ordering problem. I notice that the driver wants to use BGRA for primary color, but I suspect the hardware really wants ARGB. Ditto for secondary color / fog.
Just to check off the obvious, are you running a recent kernel with (I assume framebuffer) ? It could be that the default might have changed to configure the apertures to be bigendian.
Of course, I have no idea, but this would be one of the "easy" things to check.
best
Vladimir Dergachev
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