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metal: request crtc sequence events

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This commit is contained in:
Julian Orth 2024-09-10 15:38:38 +02:00
parent a1985b2870
commit a37ce1acda
3 changed files with 135 additions and 5 deletions
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37
src/video/drm/sys.rs
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@ -1048,7 +1048,6 @@ pub fn gem_close(fd: c::c_int, handle: u32) -> Result<(), OsError> {
#[expect(dead_code)]
pub const DRM_EVENT_VBLANK: u32 = 0x01;
pub const DRM_EVENT_FLIP_COMPLETE: u32 = 0x02;
#[expect(dead_code)]
pub const DRM_EVENT_CRTC_SEQUENCE: u32 = 0x03;
#[repr(C)]
@ -1071,6 +1070,16 @@ pub struct drm_event_vblank {
unsafe impl Pod for drm_event_vblank {}
#[repr(C)]
pub struct drm_event_crtc_sequence {
pub base: drm_event,
pub user_data: u64,
pub time_ns: i64,
pub sequence: u64,
}
unsafe impl Pod for drm_event_crtc_sequence {}
#[repr(C)]
struct drm_mode_get_blob {
blob_id: u32,
@ -1399,3 +1408,29 @@ pub fn auth_magic(fd: c::c_int, magic: c::c_uint) -> Result<(), OsError> {
}
Ok(())
}
const DRM_CRTC_SEQUENCE_RELATIVE: u32 = 0x00000001;
// const DRM_CRTC_SEQUENCE_NEXT_ON_MISS: u32 = 0x00000002;
#[repr(C)]
struct drm_crtc_queue_sequence {
crtc_id: u32,
flags: u32,
sequence: u64,
user_data: u64,
}
const DRM_IOCTL_CRTC_QUEUE_SEQUENCE: u64 = drm_iowr::<drm_crtc_queue_sequence>(0x3c);
pub fn queue_sequence(fd: c::c_int, crtc: DrmCrtc) -> Result<(), OsError> {
let mut res = drm_crtc_queue_sequence {
crtc_id: crtc.0,
flags: DRM_CRTC_SEQUENCE_RELATIVE,
sequence: 1,
user_data: crtc.0 as _,
};
unsafe {
ioctl(fd, DRM_IOCTL_CRTC_QUEUE_SEQUENCE, &mut res)?;
}
Ok(())
}