ce2a4313dd
Non-atomic kms drivers like radeon-kms (or nouveau-kms with
default setting of "atomic ioctl disabled") don't export
any formats, so num_formats == 0.
Some atomic drivers (nouveau-kms with boot param nouveau.atomic=1,
or intel-kms on, e.g., Linux 4.13) expose num_formats == 0, or
don't expose any modifiers, so num_modifiers == 0.
Let the drmmode_is_format_supported() check pass in these cases
to allow page flipping, as it works just fine.
Tested on NV-96 for nouveau, HD-5770 for radeon, Intel Ivybridge
with Linux 4.13 and drm-next to fix page flipping.
Fixes:
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||
|---|---|---|
| .. | ||
| Makefile.am | ||
| dri2.c | ||
| driver.c | ||
| driver.h | ||
| drmmode_display.c | ||
| drmmode_display.h | ||
| dumb_bo.c | ||
| dumb_bo.h | ||
| meson.build | ||
| modesetting.man | ||
| pageflip.c | ||
| present.c | ||
| vblank.c | ||