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♻️ Refactor adding gradient stops

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This commit is contained in:
Belén Albeza 2024-12-02 17:04:44 +01:00
parent 5e9f533624
commit 7105e49ac2
3 changed files with 32 additions and 26 deletions
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35
render-wasm/src/main.rs
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@ -1,6 +1,6 @@
mod debug;
mod math;
pub mod mem;
mod mem;
mod render;
mod shapes;
mod state;
@ -177,33 +177,20 @@ 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_stops(ptr: *mut RawStopData, n_stops: i32) {
pub extern "C" fn add_shape_fill_stops(ptr: *mut shapes::RawStopData, n_stops: u32) {
let state = unsafe { STATE.as_mut() }.expect("got an invalid state pointer");
if let Some(shape) = state.current_shape() {
let len = n_stops as usize;
let buffer_size = std::mem::size_of::<shapes::RawStopData>() * len;
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>(),
);
let buffer = Vec::<shapes::RawStopData>::from_raw_parts(ptr, len, len);
shape
.add_gradient_stops(buffer)
.expect("could not add gradient stops");
mem::free(ptr as *mut u8, buffer_size);
}
}
}