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Add wrapper for gbm_device_get_format_modifier_plane_count #33

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Add wrapper for gbm_device_get_format_modifier_plane_count #33

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17 changes: 17 additions & 0 deletions src/device.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -103,6 +103,23 @@ impl<T: AsFd> Device<T> {
unsafe { ffi::gbm_device_is_format_supported(*self.ffi, format as u32, usage.bits()) != 0 }
}

/// Get the required number of planes for a given format and modifier
pub fn format_modifier_plane_count(
&self,
format: Format,
modifier: Modifier,
) -> Result<u32, ()> {
unsafe {
ffi::gbm_device_get_format_modifier_plane_count(
*self.ffi,
format as u32,
modifier.into(),
)
.try_into()
.map_err(|_| ())
}
}

/// Allocate a new surface object
pub fn create_surface<U: 'static>(
&self,
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