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Add MonitorHandle::current_video_mode()

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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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43
src/platform_impl/windows/monitor.rs
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@ -59,6 +59,20 @@ impl std::fmt::Debug for VideoModeHandle {
}
impl VideoModeHandle {
fn new(monitor: MonitorHandle, mode: DEVMODEW) -> Self {
const REQUIRED_FIELDS: u32 =
DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT | DM_DISPLAYFREQUENCY;
assert!(has_flag(mode.dmFields, REQUIRED_FIELDS));
VideoModeHandle {
size: (mode.dmPelsWidth, mode.dmPelsHeight),
bit_depth: mode.dmBitsPerPel as u16,
refresh_rate_millihertz: mode.dmDisplayFrequency * 1000,
monitor,
native_video_mode: Box::new(mode),
}
}
pub fn size(&self) -> PhysicalSize<u32> {
self.size.into()
}
@ -207,6 +221,23 @@ impl MonitorHandle {
dpi_to_scale_factor(get_monitor_dpi(self.0).unwrap_or(96))
}
#[inline]
pub fn current_video_mode(&self) -> Option<VideoModeHandle> {
let monitor_info = get_monitor_info(self.0).ok()?;
let device_name = monitor_info.szDevice.as_ptr();
unsafe {
let mut mode: DEVMODEW = mem::zeroed();
mode.dmSize = mem::size_of_val(&mode) as u16;
if EnumDisplaySettingsExW(device_name, ENUM_CURRENT_SETTINGS, &mut mode, 0)
== false.into()
{
None
} else {
Some(VideoModeHandle::new(self.clone(), mode))
}
}
}
#[inline]
pub fn video_modes(&self) -> impl Iterator<Item = VideoModeHandle> {
// EnumDisplaySettingsExW can return duplicate values (or some of the
@ -233,19 +264,9 @@ impl MonitorHandle {
break;
}
const REQUIRED_FIELDS: u32 =
DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT | DM_DISPLAYFREQUENCY;
assert!(has_flag(mode.dmFields, REQUIRED_FIELDS));
// Use Ord impl of RootVideoModeHandle
modes.insert(RootVideoModeHandle {
video_mode: VideoModeHandle {
size: (mode.dmPelsWidth, mode.dmPelsHeight),
bit_depth: mode.dmBitsPerPel as u16,
refresh_rate_millihertz: mode.dmDisplayFrequency * 1000,
monitor: self.clone(),
native_video_mode: Box::new(mode),
},
video_mode: VideoModeHandle::new(self.clone(), mode),
});
i += 1;