diff options
Diffstat (limited to 'platform/javascript/js')
| -rw-r--r-- | platform/javascript/js/libs/library_godot_display.js | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/platform/javascript/js/libs/library_godot_display.js b/platform/javascript/js/libs/library_godot_display.js index 7b085aebc8..9ec295b39f 100644 --- a/platform/javascript/js/libs/library_godot_display.js +++ b/platform/javascript/js/libs/library_godot_display.js @@ -405,6 +405,27 @@ const GodotDisplay = { $GodotDisplay__deps: ['$GodotConfig', '$GodotRuntime', '$GodotDisplayCursor', '$GodotDisplayListeners', '$GodotDisplayDragDrop', '$GodotDisplayGamepads'], $GodotDisplay: { window_icon: '', + findDPI: function () { + function testDPI(dpi) { + return window.matchMedia(`(max-resolution: ${dpi}dpi)`).matches; + } + function bisect(low, high, func) { + const mid = parseInt(((high - low) / 2) + low, 10); + if (high - low <= 1) { + return func(high) ? high : low; + } + if (func(mid)) { + return bisect(low, mid, func); + } + return bisect(mid, high, func); + } + try { + const dpi = bisect(0, 800, testDPI); + return dpi >= 96 ? dpi : 96; + } catch (e) { + return 96; + } + }, }, godot_js_display_is_swap_ok_cancel__sig: 'i', @@ -422,6 +443,11 @@ const GodotDisplay = { window.alert(GodotRuntime.parseString(p_text)); // eslint-disable-line no-alert }, + godot_js_display_screen_dpi_get__sig: 'i', + godot_js_display_screen_dpi_get: function () { + return GodotDisplay.findDPI(); + }, + godot_js_display_pixel_ratio_get__sig: 'f', godot_js_display_pixel_ratio_get: function () { return window.devicePixelRatio || 1; |