leyoda/softbuffer
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Use #![deny(unsafe_op_in_unsafe_fn)]

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This commit is contained in:
Mads Marquart 2022-12-23 04:19:41 +01:00
parent c9e3652d13
commit 89bd260fd8
7 changed files with 109 additions and 90 deletions
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23
src/cg.rs
View file

@ -23,22 +23,25 @@ impl CGImpl {
let window = handle.ns_window as id;
let view = handle.ns_view as id;
let layer = CALayer::new();
let subview: id = NSView::alloc(nil).initWithFrame_(NSView::frame(view));
layer.set_contents_gravity(ContentsGravity::TopLeft);
layer.set_needs_display_on_bounds_change(false);
layer.set_contents_scale(window.backingScaleFactor());
subview.setLayer(layer.id());
subview.setAutoresizingMask_(NSViewWidthSizable | NSViewHeightSizable);
unsafe {
let subview: id = NSView::alloc(nil).initWithFrame_(NSView::frame(view));
layer.set_contents_gravity(ContentsGravity::TopLeft);
layer.set_needs_display_on_bounds_change(false);
layer.set_contents_scale(window.backingScaleFactor());
subview.setLayer(layer.id());
subview.setAutoresizingMask_(NSViewWidthSizable | NSViewHeightSizable);
view.addSubview_(subview); // retains subview (+1) = 2
let _: () = msg_send![subview, release]; // releases subview (-1) = 1
view.addSubview_(subview); // retains subview (+1) = 2
let _: () = msg_send![subview, release]; // releases subview (-1) = 1
}
Ok(Self { layer })
}
pub(crate) unsafe fn set_buffer(&mut self, buffer: &[u32], width: u16, height: u16) {
let color_space = CGColorSpace::create_device_rgb();
let data =
std::slice::from_raw_parts(buffer.as_ptr() as *const u8, buffer.len() * 4).to_vec();
unsafe { std::slice::from_raw_parts(buffer.as_ptr() as *const u8, buffer.len() * 4) }
.to_vec();
let data_provider = CGDataProvider::from_buffer(Arc::new(data));
let image = CGImage::new(
width as usize,
@ -52,6 +55,6 @@ impl CGImpl {
false,
kCGRenderingIntentDefault,
);
self.layer.set_contents(image.as_ptr() as id);
unsafe { self.layer.set_contents(image.as_ptr() as id) };
}
}