El Vie 26 Oct 2001 22:11, Leif Delgass escribió:
Manuel, the hang when switching back from a vt to X with Quake running
hangs both in fullscreen and windowed mode (other GL apps like gears don't
exhibit this problem, although there is initially some garbage at the top
of the screen when returning to X). I'm sure you're right that it has to
do with the locking (or lack thereof) in the enter/leaveVT. And with that
I'm heading out, I'll try to do some more investigation tommorow...
Well. I've written a pair of macros to interlock drm and Xdriver and used it
in all the accelerated access from the XDriver. I've also used the
DRILock/DRIUnlock API to lock the ATILeaveVT and ATIEnterVT in the
aticonsole.c file. After this, we cannot enable 2D accelerated rendering yet,
because the drm and mesa sides are not honouring this interlocking. This
should be made when Frank has the new DMA API finished, because the points
to lock will be less than now (I suppose that we only will need to lock the
actual DMA transfers) because the DMAOUTREG is only going to append the
register writes to a DMA buffer. So, I suppose that the EnterVT/LeaveVT bug
is still here, because of a non locking DRM.
Anyway, I tried to reenable 2D acceleration and run gears. The engine locked
after trying to close gears, but the cursor still worked.
My idea is updating the branch with this changes (still without reenabling
the 2D acceleration) and Leif ones for the AGP corrections. Leif, I've
(#ifdef)ed the AGP code as you told me, but I think that your host.def
changes are good for the mach64 branch (disabling the Glide dependencies and
enabling builds of DRM drivers) and I plan update it too.
Another secondary issue: I'm still have a problem compiling the branch: The
xf86cfg directory in programs/Xserver/hw/xfree86 needs a lot of shared
libraries and I think that there is no need to build this utilities in the
DRI context. So, I'm also going to add another change to the host.def file:
-#define BuildXFree86ConfigTools YES
+#define BuildXFree86ConfigTools NO
In this way, the Imakefile in programs/Xserver/hw/xfree86 will disable this
tools build:
...
#if !BuildServersOnly || BuildXFree86ConfigTools
XF86CFGDIRS = xf86cfg xf86config
#endif
...
and we will need less libraries.
Finally, and to accelerate the build, the line:
#define XF86CardDrivers tdfx i810 mga ati glint vga
should be:
#define XF86CardDrivers ati
And perhaps:
#define XFree86CustomVersion DRI trunk
should be replaced by:
#define XFree86CustomVersion DRI mach64 branch
Do you agree ?
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