diff --git a/Cargo.toml b/Cargo.toml index 8022e3b..b2f9b8f 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -26,7 +26,9 @@ x11-dl = "2.19.1" winapi = "0.3.9" [target.'cfg(target_os = "macos")'.dependencies] +cocoa = "0.24.0" core-graphics = "0.22.3" +foreign-types = "0.3.0" objc = "0.2.7" [target.'cfg(target_arch = "wasm32")'.dependencies] @@ -49,4 +51,4 @@ features = ["jpeg"] [target.'cfg(not(target_arch = "wasm32"))'.dev-dependencies] # Turn rayon back on everywhere else; creating the separate entry resets the features to default. image = "0.23.14" -rayon = "1.5.1" \ No newline at end of file +rayon = "1.5.1" diff --git a/src/cg.rs b/src/cg.rs index 7574e33..77e4dff 100644 --- a/src/cg.rs +++ b/src/cg.rs @@ -1,47 +1,44 @@ use crate::{GraphicsContextImpl, SoftBufferError}; use raw_window_handle::{HasRawWindowHandle, AppKitHandle}; -use objc::runtime::Object; use core_graphics::base::{kCGBitmapByteOrder32Little, kCGImageAlphaNoneSkipFirst, kCGRenderingIntentDefault}; use core_graphics::color_space::CGColorSpace; -use core_graphics::context::CGContext; use core_graphics::data_provider::CGDataProvider; -use core_graphics::geometry::{CGPoint, CGSize, CGRect}; use core_graphics::image::CGImage; -use core_graphics::sys; + +use cocoa::base::{id, nil}; +use cocoa::appkit::{NSView, NSViewWidthSizable, NSViewHeightSizable}; +use cocoa::quartzcore::{CALayer, ContentsGravity}; +use foreign_types::ForeignType; + +use std::sync::Arc; pub struct CGImpl { - view: *mut Object, + layer: CALayer, } impl CGImpl { pub unsafe fn new(handle: AppKitHandle) -> Result> { - let window = handle.ns_window as *mut Object; - let view = handle.ns_view as *mut Object; - let cls = class!(NSGraphicsContext); - let graphics_context: *mut Object = msg_send![cls, graphicsContextWithWindow:window]; - if graphics_context.is_null() { - return Err(SoftBufferError::PlatformError(Some("Graphics context is null".into()), None)); - } - let _: () = msg_send![cls, setCurrentContext:graphics_context]; - Ok( - Self { - view, - } - ) + let view = handle.ns_view as id; + let layer = CALayer::new(); + let subview: id = NSView::alloc(nil).initWithFrame_(view.frame()); + layer.set_contents_gravity(ContentsGravity::TopLeft); + layer.set_needs_display_on_bounds_change(false); + subview.setLayer(layer.id()); + subview.setAutoresizingMask_(NSViewWidthSizable | NSViewHeightSizable); + + view.addSubview_(subview); // retains subview (+1) = 2 + let _: () = msg_send![subview, release]; // releases subview (-1) = 1 + Ok(Self{layer}) } } impl GraphicsContextImpl for CGImpl { unsafe fn set_buffer(&mut self, buffer: &[u32], width: u16, height: u16) { - let cls = class!(NSGraphicsContext); - let graphics_context: *mut Object = msg_send![cls, currentContext]; - let context_ptr: *mut sys::CGContext = msg_send![graphics_context, CGContext]; - let context = CGContext::from_existing_context_ptr(context_ptr); let color_space = CGColorSpace::create_device_rgb(); - let slice = std::slice::from_raw_parts( + let data = std::slice::from_raw_parts( buffer.as_ptr() as *const u8, - buffer.len() * 4); - let data_provider = CGDataProvider::from_slice(slice); + buffer.len() * 4).to_vec(); + let data_provider = CGDataProvider::from_buffer(Arc::new(data)); let image = CGImage::new( width as usize, height as usize, @@ -54,11 +51,6 @@ impl GraphicsContextImpl for CGImpl { false, kCGRenderingIntentDefault, ); - let frame: CGRect = msg_send![self.view, frame]; - // In Core Graphics, (0, 0) is bottom left, not top left - let origin = CGPoint { x: 0f64, y: frame.size.height }; - let size = CGSize { width: width as f64, height: -(height as f64) }; - let rect = CGRect { origin, size }; - context.draw_image(rect, &image); + self.layer.set_contents(image.as_ptr() as id); } }