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only commit surface when it changed

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Previously wvkbd would commit an (usually) unchanged surface at the
framerate of the compositor, this only commits the buffer when we render
something new.

Signed-off-by: Maarten van Gompel <proycon@anaproy.nl>
This commit is contained in:
ArenM
2022-07-05 12:54:33 -04:00
committed by Maarten van Gompel
parent a2cacb7e25
commit 1843e60a74
4 changed files with 8 additions and 24 deletions
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18
drw.c
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@ -20,30 +20,12 @@ drwsurf_resize(struct drwsurf *ds, uint32_t w, uint32_t h, uint32_t s) {
setup_buffer(ds);
}
static void surface_frame_callback(void *data, struct wl_callback *cb,
uint32_t time);
static struct wl_callback_listener frame_listener = {.done =
surface_frame_callback};
void
drwsurf_flip(struct drwsurf *ds) {
ds->cb = wl_surface_frame(ds->surf);
wl_callback_add_listener(ds->cb, &frame_listener, (void *)ds);
wl_surface_attach(ds->surf, ds->buf, 0, 0);
wl_surface_commit(ds->surf);
}
void
surface_frame_callback(void *data, struct wl_callback *cb, uint32_t time) {
struct drwsurf *ds = (struct drwsurf *)data;
wl_callback_destroy(cb);
ds->cb = NULL;
drwsurf_flip(ds);
}
void
drw_draw_text(struct drwsurf *d, Color color, uint32_t x, uint32_t y,
uint32_t w, uint32_t h, const char *label) {