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backend/multi: implement get_drm_fd

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Just like get_renderer, iterate over all sub-backends until we find one
that implements get_drm_fd.
This commit is contained in:
Simon Ser 2020-12-01 16:05:23 +01:00
parent a53ab146fe
commit ad3a455db9
1 changed files with 15 additions and 0 deletions
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15
backend/multi/backend.c
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@ -6,6 +6,7 @@
#include <wlr/backend/interface.h>
#include <wlr/backend/session.h>
#include <wlr/util/log.h>
#include "backend/backend.h"
#include "backend/multi.h"
#include "util/signal.h"
@ -96,12 +97,26 @@ static clockid_t multi_backend_get_presentation_clock(
return CLOCK_MONOTONIC;
}
static int multi_backend_get_drm_fd(struct wlr_backend *backend) {
struct wlr_multi_backend *multi = multi_backend_from_backend(backend);
struct subbackend_state *sub;
wl_list_for_each(sub, &multi->backends, link) {
if (sub->backend->impl->get_drm_fd) {
return backend_get_drm_fd(sub->backend);
}
}
return -1;
}
struct wlr_backend_impl backend_impl = {
.start = multi_backend_start,
.destroy = multi_backend_destroy,
.get_renderer = multi_backend_get_renderer,
.get_session = multi_backend_get_session,
.get_presentation_clock = multi_backend_get_presentation_clock,
.get_drm_fd = multi_backend_get_drm_fd,
};
static void handle_display_destroy(struct wl_listener *listener, void *data) {