mirror of
https://github.com/slint-ui/slint.git
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C++: Make the platform support work without the "std" feature
Add a experimental-platform feature that doesn't include skia
This commit is contained in:
Olivier Goffart
Olivier Goffart
parent
03bca95bef
commit
4a505c6788
3 changed files with 152 additions and 143 deletions
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@ -11,7 +11,6 @@ use i_slint_core::renderer::Renderer;
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use i_slint_core::software_renderer::{RepaintBufferType, SoftwareRenderer};
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use i_slint_core::window::ffi::WindowAdapterRcOpaque;
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use i_slint_core::window::{WindowAdapter, WindowAdapterInternal};
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use raw_window_handle::{RawDisplayHandle, RawWindowHandle};
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type WindowAdapterUserData = *mut c_void;
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@ -214,146 +213,155 @@ pub unsafe extern "C" fn slint_software_renderer_handle(r: SoftwareRendererOpaqu
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core::mem::transmute(r)
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}
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type SkiaRendererOpaque = *const c_void;
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type SkiaRenderer = i_slint_renderer_skia::SkiaRenderer;
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#[cfg(all(feature = "i-slint-renderer-skia", feature = "raw-window-handle"))]
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pub mod skia {
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use super::*;
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use raw_window_handle::{RawDisplayHandle, RawWindowHandle};
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struct CppRawHandle(RawWindowHandle, RawDisplayHandle);
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struct CppRawHandle(RawWindowHandle, RawDisplayHandle);
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// the raw handle type are #[non_exhaustive], so they can't be initialize with the convenient syntax. Work that around.
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macro_rules! init_raw {
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($ty:ty { $($var:ident),* }) => {
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{
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let mut h = <$ty>::empty();
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$(h.$var = $var;)*
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h
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}
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};
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}
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type CppRawHandleOpaque = *const c_void;
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#[no_mangle]
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pub unsafe extern "C" fn slint_new_raw_window_handle_win32(
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hwnd: *mut c_void,
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hinstance: *mut c_void,
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) -> CppRawHandleOpaque {
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let handle = CppRawHandle(
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RawWindowHandle::Win32(init_raw!(raw_window_handle::Win32WindowHandle { hwnd, hinstance })),
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RawDisplayHandle::Windows(raw_window_handle::WindowsDisplayHandle::empty()),
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);
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Box::into_raw(Box::new(handle)) as CppRawHandleOpaque
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_new_raw_window_handle_x11(
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window: u32,
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visual_id: u32,
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connection: *mut c_void,
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screen: core::ffi::c_int,
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) -> CppRawHandleOpaque {
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use raw_window_handle::{XcbDisplayHandle, XcbWindowHandle};
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let handle = CppRawHandle(
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RawWindowHandle::Xcb(init_raw!(XcbWindowHandle { window, visual_id })),
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RawDisplayHandle::Xcb(init_raw!(XcbDisplayHandle { connection, screen })),
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);
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Box::into_raw(Box::new(handle)) as CppRawHandleOpaque
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_new_raw_window_handle_wayland(
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surface: *mut c_void,
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display: *mut c_void,
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) -> CppRawHandleOpaque {
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use raw_window_handle::{WaylandDisplayHandle, WaylandWindowHandle};
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let handle = CppRawHandle(
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RawWindowHandle::Wayland(init_raw!(WaylandWindowHandle { surface })),
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RawDisplayHandle::Wayland(init_raw!(WaylandDisplayHandle { display })),
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);
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Box::into_raw(Box::new(handle)) as CppRawHandleOpaque
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_new_raw_window_handle_appkit(
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ns_view: *mut c_void,
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ns_window: *mut c_void,
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) -> CppRawHandleOpaque {
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use raw_window_handle::{AppKitDisplayHandle, AppKitWindowHandle};
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let handle = CppRawHandle(
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RawWindowHandle::AppKit(init_raw!(AppKitWindowHandle { ns_view, ns_window })),
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RawDisplayHandle::AppKit(AppKitDisplayHandle::empty()),
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);
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Box::into_raw(Box::new(handle)) as CppRawHandleOpaque
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_raw_window_handle_drop(handle: CppRawHandleOpaque) {
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drop(Box::from_raw(handle as *mut CppRawHandle))
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_skia_renderer_new(
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handle_opaque: CppRawHandleOpaque,
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size: IntSize,
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) -> SkiaRendererOpaque {
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let handle = &*(handle_opaque as *const CppRawHandle);
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// Safety: This is safe because the handle remains valid; the next rwh release provides `new()` without unsafe.
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let active_handle = unsafe { raw_window_handle::ActiveHandle::new_unchecked() };
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// Safety: the C++ code should ensure that the handle is valid
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let (window_handle, display_handle) = unsafe {
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(
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raw_window_handle::WindowHandle::borrow_raw(handle.0, active_handle),
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raw_window_handle::DisplayHandle::borrow_raw(handle.1),
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)
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};
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let boxed_renderer: Box<SkiaRenderer> = Box::new(
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SkiaRenderer::new(
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window_handle,
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display_handle,
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PhysicalSize { width: size.width, height: size.height },
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)
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.unwrap(),
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);
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Box::into_raw(boxed_renderer) as SkiaRendererOpaque
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_skia_renderer_drop(r: SkiaRendererOpaque) {
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drop(Box::from_raw(r as *mut SkiaRenderer))
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_skia_renderer_show(r: SkiaRendererOpaque) {
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let r = &*(r as *const SkiaRenderer);
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r.show().unwrap()
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_skia_renderer_hide(r: SkiaRendererOpaque) {
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let r = &*(r as *const SkiaRenderer);
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r.hide().unwrap()
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_skia_renderer_resize(r: SkiaRendererOpaque, size: IntSize) {
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let r = &*(r as *const SkiaRenderer);
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r.resize_event(PhysicalSize { width: size.width, height: size.height }).unwrap();
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_skia_renderer_render(
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r: SkiaRendererOpaque,
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window: *const WindowAdapterRcOpaque,
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) {
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let window_adapter = &*(window as *const Rc<dyn WindowAdapter>);
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let r = &*(r as *const SkiaRenderer);
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r.render(window_adapter.window()).unwrap();
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_skia_renderer_handle(r: SkiaRendererOpaque) -> RendererPtr {
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let r = (r as *const SkiaRenderer) as *const dyn Renderer;
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core::mem::transmute(r)
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// the raw handle type are #[non_exhaustive], so they can't be initialize with the convenient syntax. Work that around.
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macro_rules! init_raw {
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($ty:ty { $($var:ident),* }) => {
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{
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let mut h = <$ty>::empty();
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$(h.$var = $var;)*
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h
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}
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};
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}
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type CppRawHandleOpaque = *const c_void;
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#[no_mangle]
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pub unsafe extern "C" fn slint_new_raw_window_handle_win32(
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hwnd: *mut c_void,
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hinstance: *mut c_void,
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) -> CppRawHandleOpaque {
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let handle = CppRawHandle(
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RawWindowHandle::Win32(init_raw!(raw_window_handle::Win32WindowHandle {
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hwnd,
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hinstance
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})),
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RawDisplayHandle::Windows(raw_window_handle::WindowsDisplayHandle::empty()),
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);
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Box::into_raw(Box::new(handle)) as CppRawHandleOpaque
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_new_raw_window_handle_x11(
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window: u32,
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visual_id: u32,
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connection: *mut c_void,
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screen: core::ffi::c_int,
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) -> CppRawHandleOpaque {
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use raw_window_handle::{XcbDisplayHandle, XcbWindowHandle};
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let handle = CppRawHandle(
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RawWindowHandle::Xcb(init_raw!(XcbWindowHandle { window, visual_id })),
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RawDisplayHandle::Xcb(init_raw!(XcbDisplayHandle { connection, screen })),
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);
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Box::into_raw(Box::new(handle)) as CppRawHandleOpaque
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_new_raw_window_handle_wayland(
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surface: *mut c_void,
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display: *mut c_void,
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) -> CppRawHandleOpaque {
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use raw_window_handle::{WaylandDisplayHandle, WaylandWindowHandle};
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let handle = CppRawHandle(
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RawWindowHandle::Wayland(init_raw!(WaylandWindowHandle { surface })),
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RawDisplayHandle::Wayland(init_raw!(WaylandDisplayHandle { display })),
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);
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Box::into_raw(Box::new(handle)) as CppRawHandleOpaque
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_new_raw_window_handle_appkit(
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ns_view: *mut c_void,
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ns_window: *mut c_void,
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) -> CppRawHandleOpaque {
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use raw_window_handle::{AppKitDisplayHandle, AppKitWindowHandle};
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let handle = CppRawHandle(
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RawWindowHandle::AppKit(init_raw!(AppKitWindowHandle { ns_view, ns_window })),
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RawDisplayHandle::AppKit(AppKitDisplayHandle::empty()),
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);
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Box::into_raw(Box::new(handle)) as CppRawHandleOpaque
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_raw_window_handle_drop(handle: CppRawHandleOpaque) {
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drop(Box::from_raw(handle as *mut CppRawHandle))
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}
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type SkiaRendererOpaque = *const c_void;
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type SkiaRenderer = i_slint_renderer_skia::SkiaRenderer;
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#[no_mangle]
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pub unsafe extern "C" fn slint_skia_renderer_new(
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handle_opaque: CppRawHandleOpaque,
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size: IntSize,
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) -> SkiaRendererOpaque {
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let handle = &*(handle_opaque as *const CppRawHandle);
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// Safety: This is safe because the handle remains valid; the next rwh release provides `new()` without unsafe.
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let active_handle = unsafe { raw_window_handle::ActiveHandle::new_unchecked() };
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// Safety: the C++ code should ensure that the handle is valid
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let (window_handle, display_handle) = unsafe {
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(
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raw_window_handle::WindowHandle::borrow_raw(handle.0, active_handle),
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raw_window_handle::DisplayHandle::borrow_raw(handle.1),
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)
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};
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let boxed_renderer: Box<SkiaRenderer> = Box::new(
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SkiaRenderer::new(
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window_handle,
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display_handle,
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PhysicalSize { width: size.width, height: size.height },
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)
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.unwrap(),
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);
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Box::into_raw(boxed_renderer) as SkiaRendererOpaque
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_skia_renderer_drop(r: SkiaRendererOpaque) {
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drop(Box::from_raw(r as *mut SkiaRenderer))
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_skia_renderer_show(r: SkiaRendererOpaque) {
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let r = &*(r as *const SkiaRenderer);
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r.show().unwrap()
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_skia_renderer_hide(r: SkiaRendererOpaque) {
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let r = &*(r as *const SkiaRenderer);
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r.hide().unwrap()
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_skia_renderer_resize(r: SkiaRendererOpaque, size: IntSize) {
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let r = &*(r as *const SkiaRenderer);
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r.resize_event(PhysicalSize { width: size.width, height: size.height }).unwrap();
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_skia_renderer_render(
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r: SkiaRendererOpaque,
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window: *const WindowAdapterRcOpaque,
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) {
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let window_adapter = &*(window as *const Rc<dyn WindowAdapter>);
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let r = &*(r as *const SkiaRenderer);
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r.render(window_adapter.window()).unwrap();
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}
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#[no_mangle]
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pub unsafe extern "C" fn slint_skia_renderer_handle(r: SkiaRendererOpaque) -> RendererPtr {
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let r = (r as *const SkiaRenderer) as *const dyn Renderer;
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core::mem::transmute(r)
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}
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}
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