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xf86: dri2: Use va_gl as VDPAU driver for Intel i965 GPUs 

The modesetting driver (which now often is used with Intel GPUs),
relies on DRI2ScreenInit() to setup the DRI and VDPAU driver names.

Before this commit it would always assign the same name to the 2 names,
but the VDPAU driver for i965 GPUs should be va_gl.

This commit adds a special case for the i965 case, replacing the
VDPAU driver name with "va_gl" if the GPU is using the i965 driver
for DRI.

Note this commit adds a FIXME comment for a related memory leak, that leak
was already present and fixing it falls outside of the scope of this commit.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1413733
Cc: kwizart@gmail.com
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Hans de Goede 2019-08-05 17:12:01 +02:00
parent 6f41bf3105
commit f9e7cdf659
1 changed files with 7 additions and 0 deletions
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7
hw/xfree86/dri2/dri2.c
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@ -1602,9 +1602,16 @@ DRI2ScreenInit(ScreenPtr pScreen, DRI2InfoPtr info)
if (info->driverName) {
ds->driverNames[0] = info->driverName;
} else {
/* FIXME dri2_probe_driver_name() returns a strdup-ed string,
* currently this gets leaked */
ds->driverNames[0] = ds->driverNames[1] = dri2_probe_driver_name(pScreen, info);
if (!ds->driverNames[0])
return FALSE;
/* There is no VDPAU driver for i965, fallback to the generic
* OpenGL/VAAPI va_gl backend to emulate VDPAU on i965. */
if (strcmp(ds->driverNames[0], "i965") == 0)
ds->driverNames[1] = "va_gl";
}
}
else {