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no conditional needed for output modes

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If the output backend doesn't support modes, get_preferred_mode will
return NULL, and set_mode will accept NULL.
This commit is contained in:
Devin J. Pohly 2020-05-03 11:45:47 -05:00
parent b19afa10f3
commit 1a30d9908d
1 changed files with 9 additions and 13 deletions
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22
dwl.c
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@ -392,22 +392,14 @@ createmon(struct wl_listener *listener, void *data)
/* This event is raised by the backend when a new output (aka a display or
* monitor) becomes available. */
struct wlr_output *wlr_output = data;
struct wlr_output_mode *mode;
Monitor *m;
const MonitorRule *r;
/* Some backends don't have modes. DRM+KMS does, and we need to set a mode
* before we can use the output. The mode is a tuple of (width, height,
* refresh rate), and each monitor supports only a specific set of modes. We
* just pick the monitor's preferred mode, a more sophisticated compositor
* would let the user configure it. */
if (!wl_list_empty(&wlr_output->modes)) {
mode = wlr_output_preferred_mode(wlr_output);
wlr_output_set_mode(wlr_output, mode);
wlr_output_enable(wlr_output, 1);
if (!wlr_output_commit(wlr_output))
return;
}
/* The mode is a tuple of (width, height, refresh rate), and each
* monitor supports only a specific set of modes. We just pick the
* monitor's preferred mode; a more sophisticated compositor would let
* the user configure it. */
wlr_output_set_mode(wlr_output, wlr_output_preferred_mode(wlr_output));
/* Allocates and configures monitor state using configured rules */
m = wlr_output->data = calloc(1, sizeof(*m));
@ -429,6 +421,10 @@ createmon(struct wl_listener *listener, void *data)
wl_signal_add(&wlr_output->events.frame, &m->frame);
wl_list_insert(&mons, &m->link);
wlr_output_enable(wlr_output, 1);
if (!wlr_output_commit(wlr_output))
return;
/* Adds this to the output layout. The add_auto function arranges outputs
* from left-to-right in the order they appear. A more sophisticated
* compositor would let the user configure the arrangement of outputs in the