Improve default ui scale

base/sources/backends/ios_system.m

@@ -83,11 +83,13 @@ id get_metal_queue(void) {
 void iron_display_init(void) {}
 
 iron_display_mode_t iron_display_current_mode(int display) {
+	UIScreen           *screen = [UIScreen mainScreen];
 	iron_display_mode_t dm;
-	dm.width          = iron_window_width();
-	dm.height         = iron_window_height();
-	dm.frequency      = (int)[[UIScreen mainScreen] maximumFramesPerSecond];
-	dm.bits_per_pixel = 32;
+	dm.width           = iron_window_width();
+	dm.height          = iron_window_height();
+	dm.frequency       = (int)screen.maximumFramesPerSecond;
+	dm.bits_per_pixel  = 32;
+	dm.pixels_per_inch = UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad ? 326.0f : 460.0f; // Approx
 	return dm;
 }
 
@@ -600,5 +602,4 @@ bool _save_and_quit_callback_internal() {
 
 volatile int iron_exec_async_done = 1;
 
-void iron_exec_async(const char *path, char *argv[]) {
-}
+void iron_exec_async(const char *path, char *argv[]) {}

base/sources/iron.h

@@ -1223,8 +1223,8 @@ buffer_t *iron_load_blob(string_t *file) {
 	return buffer;
 }
 
-i32 iron_screen_dpi() {
-	return iron_display_current_mode(iron_primary_display()).pixels_per_inch;
+i32 iron_display_ppi(i32 index) {
+	return iron_display_current_mode(index).pixels_per_inch;
 }
 
 i32 iron_display_width(i32 index) {

base/sources/ts/iron.ts

@@ -259,10 +259,10 @@ declare function iron_window_get_mode(): i32;
 declare function iron_window_change_mode(mode: i32): void;
 declare function iron_window_resize(width: i32, height: i32): void;
 declare function iron_window_move(x: i32, y: i32): void;
-declare function iron_screen_dpi(): i32;
 declare function iron_system_id(): string;
 declare function iron_stop(): void;
 declare function iron_count_displays(): i32;
+declare function iron_display_ppi(index: i32): i32;
 declare function iron_display_width(index: i32): i32;
 declare function iron_display_height(index: i32): i32;
 declare function iron_display_x(index: i32): i32;

base/sources/ts/sys.ts

@@ -260,6 +260,10 @@ function sys_display_frequency(): i32 {
 	return iron_display_frequency(sys_display_primary_id());
 }
 
+function sys_display_ppi(): i32 {
+	return iron_display_ppi(sys_display_primary_id());
+}
+
 function sys_buffer_to_string(b: buffer_t): string {
 	let str: string = string_alloc(b.length + 1);
 	memcpy(str, b.buffer, b.length);