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Wayland: Detect SSD by querying compositor

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Much more reliable than checking environment variables. Does
add ~1ms to startup time on Wayland.
This commit is contained in:
Kovid Goyal
2019-06-05 10:37:57 +05:30
parent 98d7fc9f39
commit 303711ab8d
2 changed files with 55 additions and 9 deletions
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33
glfw/wl_init.c vendored
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@@ -634,6 +634,39 @@ static const struct wl_registry_listener registryListener = {
};
static void registry_handle_global(void* data,
struct wl_registry* registry,
uint32_t name,
const char* interface,
uint32_t version) {
if (strcmp(interface, "zxdg_decoration_manager_v1") == 0) {
bool *has_ssd = (bool*)data;
if (has_ssd) *has_ssd = true;
}
}
static void registry_handle_global_remove(void *data,
struct wl_registry *registry,
uint32_t name) {}
GLFWAPI const char*
glfwWaylandCheckForServerSideDecorations(void) {
struct wl_display *display = wl_display_connect(NULL);
if (!display) return "ERR: Failed to connect to Wayland display";
static const struct wl_registry_listener rl = {
registry_handle_global, registry_handle_global_remove
};
struct wl_registry *registry = wl_display_get_registry(display);
bool has_ssd = false;
wl_registry_add_listener(registry, &rl, &has_ssd);
wl_display_roundtrip(display);
wl_registry_destroy(registry);
wl_display_flush(display);
wl_display_flush(display);
return has_ssd ? "YES" : "NO";
}
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
//////////////////////////////////////////////////////////////////////////