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C++ platform: return the updated region from the render function

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Olivier Goffart 2023-07-24 07:40:57 +02:00 • committed by Olivier Goffart
parent 5268aeb676
commit 3a420d5769
3 changed files with 37 additions and 11 deletions
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14
api/cpp/platform.rs
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@ -5,7 +5,7 @@ use alloc::boxed::Box;
use alloc::rc::Rc;
use core::ffi::c_void;
use i_slint_core::api::{PhysicalSize, Window};
use i_slint_core::graphics::{IntSize, Rgb8Pixel};
use i_slint_core::graphics::{IntRect, IntSize, Rgb8Pixel};
use i_slint_core::platform::{Platform, PlatformError};
use i_slint_core::renderer::Renderer;
use i_slint_core::software_renderer::{RepaintBufferType, Rgb565Pixel, SoftwareRenderer};
@ -287,12 +287,14 @@ pub unsafe extern "C" fn slint_software_renderer_render_rgb8(
buffer: *mut Rgb8Pixel,
buffer_len: usize,
pixel_stride: usize,
) {
) -> IntRect {
let buffer = core::slice::from_raw_parts_mut(buffer, buffer_len);
let renderer = &*(r as *const SoftwareRenderer);
let window_adapter = &*(window_adapter as *const Rc<dyn WindowAdapter>);
renderer.set_window(window_adapter.window());
renderer.render(buffer, pixel_stride);
let r = renderer.render(buffer, pixel_stride);
let (orig, size) = (r.bounding_box_origin(), r.bounding_box_size());
i_slint_core::graphics::euclid::rect(orig.x, orig.y, size.width as i32, size.height as i32)
}
#[no_mangle]
@ -302,12 +304,14 @@ pub unsafe extern "C" fn slint_software_renderer_render_rgb565(
buffer: *mut u16,
buffer_len: usize,
pixel_stride: usize,
) {
) -> IntRect {
let buffer = core::slice::from_raw_parts_mut(buffer as *mut Rgb565Pixel, buffer_len);
let renderer = &*(r as *const SoftwareRenderer);
let window_adapter = &*(window_adapter as *const Rc<dyn WindowAdapter>);
renderer.set_window(window_adapter.window());
renderer.render(buffer, pixel_stride);
let r = renderer.render(buffer, pixel_stride);
let (orig, size) = (r.bounding_box_origin(), r.bounding_box_size());
i_slint_core::graphics::euclid::rect(orig.x, orig.y, size.width as i32, size.height as i32)
}
#[no_mangle]