Update layer shell example -o behavior
#define _POSIX_C_SOURCE 199309L
#include <assert.h>
#include <GLES2/gl2.h>
+#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -28,7 +29,7 @@ struct wl_egl_window *egl_window;
struct wlr_egl_surface *egl_surface;
struct wl_callback *frame_callback;
-static uint32_t output = 0;
+static uint32_t output = UINT32_MAX;
static uint32_t layer = ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND;
static uint32_t anchor = 0;
static uint32_t width = 256, height = 256;
@@ -283,12 +284,14 @@ static void handle_global(void *data, struct wl_registry *registry,
shm = wl_registry_bind(registry, name,
&wl_shm_interface, 1);
} else if (strcmp(interface, "wl_output") == 0) {
- if (output == 0 && !wl_output) {
+ if (output != UINT32_MAX) {
+ if (!wl_output) {
wl_output = wl_registry_bind(registry, name,
&wl_output_interface, 1);
} else {
output--;
}
+ }
} else if (strcmp(interface, wl_seat_interface.name) == 0) {
seat = wl_registry_bind(registry, name,
&wl_seat_interface, 1);
@@ -426,10 +429,6 @@ int main(int argc, char **argv) {
fprintf(stderr, "layer_shell not available\n");
return 1;
}
- if (wl_output == NULL) {
- fprintf(stderr, "wl_output not available\n");
- return 1;
- }
cursor_theme = wl_cursor_theme_load(NULL, 16, shm);
assert(cursor_theme);
