Mercurial > hg > ascension / file diff

--- a/src/window.c	Sun Jun 15 19:50:51 2025 +0200
+++ b/src/window.c	Sun Jun 15 21:02:29 2025 +0200
@@ -77,6 +77,9 @@
     }
     window->resized = true; // count initial sizing as resize
 
+    // default UI scale
+    window->ui_scale = 1.0f;
+
     if (asc_gl_context_initialize(&window->glctx, window->window, &settings->glsettings)) {
         asc_scene_init(&window->ui,
             .type = ASC_CAMERA_ORTHO,
@@ -198,3 +201,34 @@
 AscScene *asc_window_scene(unsigned int index) {
     return &asc_active_window->scenes[index];
 }
+
+asc_vec2u asc_window_display_resolution(void) {
+    const AscWindow *window = asc_active_window;
+    SDL_DisplayMode dm;
+    const int display = SDL_GetWindowDisplayIndex(window->window);
+    if (SDL_GetDesktopDisplayMode(display, &dm)) {
+        asc_error("Failed to get display mode for window %u on display %d: %s",
+            window->id, display, SDL_GetError());
+    }
+    return asc_vec2u_new(dm.w, dm.h);
+}
+
+void asc_ui_scale(float scale) {
+    asc_active_window->ui_scale = scale;
+}
+
+float asc_ui_get_scale(void) {
+    return asc_active_window->ui_scale;
+}
+
+void asc_ui_scale_auto(void) {
+    asc_vec2u res = asc_window_display_resolution();
+    // TODO: debug why this is wrong under GNOME or just throw GNOME away
+    if (res.width > 3000) {
+        asc_ui_scale(1.5f);
+    } else if (res.width > 2000) {
+        asc_ui_scale(1.2f);
+    } else {
+        return asc_ui_scale(1.f);
+    }
+}