Add hidpi support to swaylock

1 files changed, 33 insertions, 2 deletions

diff --git a/swaylock/main.c b/swaylock/main.c
index 6cd4e41d..1eda3afc 100644
--- a/swaylock/main.c
+++ b/swaylock/main.c
@@ -56,12 +56,42 @@ static const struct zwlr_layer_surface_v1_listener layer_surface_listener = {
         .closed = layer_surface_closed,
 };
 
+static void output_geometry(void *data, struct wl_output *output, int32_t x,
+                int32_t y, int32_t width_mm, int32_t height_mm, int32_t subpixel,
+                const char *make, const char *model, int32_t transform) {
+        // Who cares
+}
+
+static void output_mode(void *data, struct wl_output *output, uint32_t flags,
+                int32_t width, int32_t height, int32_t refresh) {
+        // Who cares
+}
+
+static void output_done(void *data, struct wl_output *output) {
+        // Who cares
+}
+
+static void output_scale(void *data, struct wl_output *output, int32_t factor) {
+        struct swaylock_surface *surface = data;
+        surface->scale = factor;
+        if (surface->state->run_display) {
+                render_frames(surface->state);
+        }
+}
+
+struct wl_output_listener output_listener = {
+        .geometry = output_geometry,
+        .mode = output_mode,
+        .done = output_done,
+        .scale = output_scale,
+};
+
 static void handle_global(void *data, struct wl_registry *registry,
                 uint32_t name, const char *interface, uint32_t version) {
         struct swaylock_state *state = data;
         if (strcmp(interface, wl_compositor_interface.name) == 0) {
                 state->compositor = wl_registry_bind(registry, name,
-                                &wl_compositor_interface, 1);
+                                &wl_compositor_interface, 3);
         } else if (strcmp(interface, wl_shm_interface.name) == 0) {
                 state->shm = wl_registry_bind(registry, name,
                                 &wl_shm_interface, 1);
@@ -80,7 +110,8 @@ static void handle_global(void *data, struct wl_registry *registry,
                         calloc(1, sizeof(struct swaylock_surface));
                 surface->state = state;
                 surface->output = wl_registry_bind(registry, name,
-                                &wl_output_interface, 1);
+                                &wl_output_interface, 3);
+                wl_output_add_listener(surface->output, &output_listener, surface);
                 wl_list_insert(&state->surfaces, &surface->link);
         }
 }