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Add MonitorHandle::current_video_mode()

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This commit is contained in:
daxpedda 2024-07-21 00:01:43 +02:00
parent 1168cd4113
commit 2e53533cc1
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GPG key ID: 43D62A3EA388E46F
12 changed files with 167 additions and 79 deletions
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107
src/platform_impl/apple/appkit/monitor.rs
View file

@ -80,6 +80,34 @@ impl Clone for NativeDisplayMode {
}
impl VideoModeHandle {
fn new(monitor: MonitorHandle, mode: NativeDisplayMode, refresh_rate_millihertz: u32) -> Self {
unsafe {
let pixel_encoding =
CFString::wrap_under_create_rule(ffi::CGDisplayModeCopyPixelEncoding(mode.0))
.to_string();
let bit_depth = if pixel_encoding.eq_ignore_ascii_case(ffi::IO32BitDirectPixels) {
32
} else if pixel_encoding.eq_ignore_ascii_case(ffi::IO16BitDirectPixels) {
16
} else if pixel_encoding.eq_ignore_ascii_case(ffi::kIO30BitDirectPixels) {
30
} else {
unimplemented!()
};
VideoModeHandle {
size: PhysicalSize::new(
ffi::CGDisplayModeGetPixelWidth(mode.0) as u32,
ffi::CGDisplayModeGetPixelHeight(mode.0) as u32,
),
refresh_rate_millihertz,
bit_depth,
monitor: monitor.clone(),
native_mode: mode,
}
}
}
pub fn size(&self) -> PhysicalSize<u32> {
self.size
}
@ -212,29 +240,15 @@ impl MonitorHandle {
}
pub fn refresh_rate_millihertz(&self) -> Option<u32> {
unsafe {
let current_display_mode = NativeDisplayMode(CGDisplayCopyDisplayMode(self.0) as _);
let refresh_rate = ffi::CGDisplayModeGetRefreshRate(current_display_mode.0);
if refresh_rate > 0.0 {
return Some((refresh_rate * 1000.0).round() as u32);
}
let current_display_mode =
NativeDisplayMode(unsafe { CGDisplayCopyDisplayMode(self.0) } as _);
refresh_rate_millihertz(self.0, &current_display_mode)
}
let mut display_link = std::ptr::null_mut();
if ffi::CVDisplayLinkCreateWithCGDisplay(self.0, &mut display_link)
!= ffi::kCVReturnSuccess
{
return None;
}
let time = ffi::CVDisplayLinkGetNominalOutputVideoRefreshPeriod(display_link);
ffi::CVDisplayLinkRelease(display_link);
// This value is indefinite if an invalid display link was specified
if time.flags & ffi::kCVTimeIsIndefinite != 0 {
return None;
}
(time.time_scale as i64).checked_div(time.time_value).map(|v| (v * 1000) as u32)
}
pub fn current_video_mode(&self) -> Option<VideoModeHandle> {
let mode = NativeDisplayMode(unsafe { CGDisplayCopyDisplayMode(self.0) } as _);
let refresh_rate_millihertz = refresh_rate_millihertz(self.0, &mode).unwrap_or(0);
Some(VideoModeHandle::new(self.clone(), mode, refresh_rate_millihertz))
}
pub fn video_modes(&self) -> impl Iterator<Item = VideoModeHandle> {
@ -268,29 +282,11 @@ impl MonitorHandle {
refresh_rate_millihertz
};
let pixel_encoding =
CFString::wrap_under_create_rule(ffi::CGDisplayModeCopyPixelEncoding(mode))
.to_string();
let bit_depth = if pixel_encoding.eq_ignore_ascii_case(ffi::IO32BitDirectPixels) {
32
} else if pixel_encoding.eq_ignore_ascii_case(ffi::IO16BitDirectPixels) {
16
} else if pixel_encoding.eq_ignore_ascii_case(ffi::kIO30BitDirectPixels) {
30
} else {
unimplemented!()
};
VideoModeHandle {
size: PhysicalSize::new(
ffi::CGDisplayModeGetPixelWidth(mode) as u32,
ffi::CGDisplayModeGetPixelHeight(mode) as u32,
),
VideoModeHandle::new(
monitor.clone(),
NativeDisplayMode(mode),
refresh_rate_millihertz,
bit_depth,
monitor: monitor.clone(),
native_mode: NativeDisplayMode(mode),
}
)
})
}
}
@ -349,3 +345,26 @@ pub(crate) fn flip_window_screen_coordinates(frame: NSRect) -> NSPoint {
let y = main_screen_height - frame.size.height - frame.origin.y;
NSPoint::new(frame.origin.x, y)
}
fn refresh_rate_millihertz(id: CGDirectDisplayID, mode: &NativeDisplayMode) -> Option<u32> {
unsafe {
let refresh_rate = ffi::CGDisplayModeGetRefreshRate(mode.0);
if refresh_rate > 0.0 {
return Some((refresh_rate * 1000.0).round() as u32);
}
let mut display_link = std::ptr::null_mut();
if ffi::CVDisplayLinkCreateWithCGDisplay(id, &mut display_link) != ffi::kCVReturnSuccess {
return None;
}
let time = ffi::CVDisplayLinkGetNominalOutputVideoRefreshPeriod(display_link);
ffi::CVDisplayLinkRelease(display_link);
// This value is indefinite if an invalid display link was specified
if time.flags & ffi::kCVTimeIsIndefinite != 0 {
return None;
}
(time.time_scale as i64).checked_div(time.time_value).map(|v| (v * 1000) as u32)
}
}

10
src/platform_impl/apple/uikit/monitor.rs
View file

@ -182,6 +182,16 @@ impl MonitorHandle {
Some(self.ui_screen.get_on_main(|ui_screen| refresh_rate_millihertz(ui_screen)))
}
pub fn current_video_mode(&self) -> Option<VideoModeHandle> {
Some(run_on_main(|mtm| {
VideoModeHandle::new(
self.ui_screen(mtm).clone(),
self.ui_screen(mtm).currentMode().unwrap(),
mtm,
)
}))
}
pub fn video_modes(&self) -> impl Iterator<Item = VideoModeHandle> {
run_on_main(|mtm| {
let ui_screen = self.ui_screen(mtm);