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simple-shm: Add a wl_shm listener

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This way we properly check that WL_SHM_FORMAT_XRGB32 is available.
This commit is contained in:
Kristian Høgsberg 2011-11-17 10:27:17 -05:00
parent 2ca8630aab
commit a3cdf59cee
1 changed files with 21 additions and 0 deletions
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21
clients/simple-shm.c
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@ -37,6 +37,7 @@ struct display {
struct wl_compositor *compositor;
struct wl_shell *shell;
struct wl_shm *shm;
uint32_t formats;
uint32_t mask;
};
@ -140,6 +141,18 @@ static const struct wl_callback_listener frame_listener = {
redraw
};
static void
shm_format(void *data, struct wl_shm *wl_shm, uint32_t format)
{
struct display *d = data;
d->formats |= (1 << format);
}
struct wl_shm_listener shm_listenter = {
shm_format
};
static void
display_handle_global(struct wl_display *display, uint32_t id,
const char *interface, uint32_t version, void *data)
@ -153,6 +166,7 @@ display_handle_global(struct wl_display *display, uint32_t id,
d->shell = wl_display_bind(display, id, &wl_shell_interface);
} else if (strcmp(interface, "wl_shm") == 0) {
d->shm = wl_display_bind(display, id, &wl_shm_interface);
wl_shm_add_listener(d->shm, &shm_listenter, d);
}
}
@ -175,9 +189,16 @@ create_display(void)
display->display = wl_display_connect(NULL);
assert(display->display);
display->formats = 0;
wl_display_add_global_listener(display->display,
display_handle_global, display);
wl_display_iterate(display->display, WL_DISPLAY_READABLE);
wl_display_roundtrip(display->display);
if (!(display->formats & (1 << WL_SHM_FORMAT_XRGB32))) {
fprintf(stderr, "WL_SHM_FORMAT_XRGB32 not available\n");
exit(1);
}
wl_display_get_fd(display->display, event_mask_update, display);