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backend: drop wlr_backend_get_presentation_clock()

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We can just assume CLOCK_MONOTONIC everywhere.

Simplifies the backend API, and fixes clock mismatches when multiple
backends are used together with different clocks.
This commit is contained in:
Simon Ser 2023-10-30 18:37:13 +01:00
parent 5fac9b1beb
commit 1c24b1182b
12 changed files with 13 additions and 56 deletions
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15
backend/multi/backend.c
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@ -63,20 +63,6 @@ static void multi_backend_destroy(struct wlr_backend *wlr_backend) {
free(backend);
}
static clockid_t multi_backend_get_presentation_clock(
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_presentation_clock) {
return wlr_backend_get_presentation_clock(sub->backend);
}
}
return CLOCK_MONOTONIC;
}
static int multi_backend_get_drm_fd(struct wlr_backend *backend) {
struct wlr_multi_backend *multi = multi_backend_from_backend(backend);
@ -115,7 +101,6 @@ static uint32_t multi_backend_get_buffer_caps(struct wlr_backend *backend) {
static const struct wlr_backend_impl backend_impl = {
.start = multi_backend_start,
.destroy = multi_backend_destroy,
.get_presentation_clock = multi_backend_get_presentation_clock,
.get_drm_fd = multi_backend_get_drm_fd,
.get_buffer_caps = multi_backend_get_buffer_caps,
};