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🎉 Refactor memory managemnt for color linear gradient stops

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This commit is contained in:
Alejandro Alonso 2024-12-02 12:03:37 +01:00
parent 00ab9ad3f0
commit a4cfaa542c
3 changed files with 74 additions and 14 deletions
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31
render-wasm/src/main.rs
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@ -1,6 +1,7 @@
mod debug;
mod images;
mod math;
pub mod mem;
mod render;
mod shapes;
mod state;
@ -176,14 +177,34 @@ pub extern "C" fn add_shape_linear_fill(
}
}
#[derive(Debug)]
pub struct RawStopData {
color: [u8; 4],
offset: u8,
}
#[no_mangle]
pub extern "C" fn add_shape_fill_stop(raw_color: u32, offset: f32) {
pub extern "C" fn add_shape_fill_stops(ptr: *mut RawStopData, n_stops: i32) {
let state = unsafe { STATE.as_mut() }.expect("got an invalid state pointer");
if let Some(shape) = state.current_shape() {
let color = skia::Color::new(raw_color);
shape
.add_gradient_stop(color, offset)
.expect("got no fill or an invalid one");
unsafe {
let buf = Vec::<RawStopData>::from_raw_parts(ptr, n_stops as usize, n_stops as usize);
for raw_stop in buf.iter() {
let color = skia::Color::from_argb(
raw_stop.color[3],
raw_stop.color[0],
raw_stop.color[1],
raw_stop.color[2],
);
shape
.add_gradient_stop(color, (raw_stop.offset as f32) / 100.)
.expect("got no fill or an invalid one");
}
mem::free(
ptr as *mut u8,
n_stops as usize * std::mem::size_of::<RawStopData>(),
);
}
}
}