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Add from_raw function for direct use of raw handles

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Jeremy Soller 2022-12-20 09:40:06 -07:00
parent 99d63063b6
commit e781cd8cab
1 changed files with 11 additions and 4 deletions
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15
src/lib.rs
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@ -33,16 +33,23 @@ pub struct GraphicsContext {
} }
impl GraphicsContext { impl GraphicsContext {
/// Creates a new instance of this struct, consuming the given window. /// Creates a new instance of this struct, using the provided window.
/// ///
/// # Safety /// # Safety
/// ///
/// - Ensure that the passed object is valid to draw a 2D buffer to, and is valid for the /// - Ensure that the provided window is valid to draw a 2D buffer to, and is valid for the
/// lifetime of the GraphicsContext /// lifetime of the GraphicsContext
pub unsafe fn new<W: HasRawWindowHandle + HasRawDisplayHandle>(window: &W) -> Result<Self, SwBufError> { pub unsafe fn new<W: HasRawWindowHandle + HasRawDisplayHandle>(window: &W) -> Result<Self, SwBufError> {
let raw_window_handle = window.raw_window_handle(); Self::from_raw(window.raw_window_handle(), window.raw_display_handle())
let raw_display_handle = window.raw_display_handle(); }
/// Creates a new instance of this struct, using the provided raw handles
///
/// # Safety
///
/// - Ensure that the provided handles are valid to draw a 2D buffer to, and are valid for the
/// lifetime of the GraphicsContext
pub unsafe fn from_raw(raw_window_handle: RawWindowHandle, raw_display_handle: RawDisplayHandle) -> Result<Self, SwBufError> {
let imple: Box<dyn GraphicsContextImpl> = match (raw_window_handle, raw_display_handle) { let imple: Box<dyn GraphicsContextImpl> = match (raw_window_handle, raw_display_handle) {
#[cfg(any(target_os = "linux", target_os = "freebsd"))] #[cfg(any(target_os = "linux", target_os = "freebsd"))]
(RawWindowHandle::Xlib(xlib_window_handle), RawDisplayHandle::Xlib(xlib_display_handle)) => Box::new(x11::X11Impl::new(xlib_window_handle, xlib_display_handle)?), (RawWindowHandle::Xlib(xlib_window_handle), RawDisplayHandle::Xlib(xlib_display_handle)) => Box::new(x11::X11Impl::new(xlib_window_handle, xlib_display_handle)?),