66feffcc49
* Scaling works on native * It works in wasm * Integrate with UI * Remove benchmark * Integrate Hqx into Resizer module * Link against repo for hqx * Remove unused defaultOpts * Re-add test file * Adding size dropdown * Chrome: go and sit on the naughty step * Better docs * Review * Add link to crbug * Update src/codecs/processor-worker/index.ts Co-Authored-By: Jake Archibald <jaffathecake@gmail.com> * Terminate worker inbetween resize jobs
56 lines
1.3 KiB
Rust
56 lines
1.3 KiB
Rust
extern crate cfg_if;
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extern crate hqx;
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extern crate wasm_bindgen;
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mod utils;
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use cfg_if::cfg_if;
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use wasm_bindgen::prelude::*;
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cfg_if! {
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// When the `wee_alloc` feature is enabled, use `wee_alloc` as the global
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// allocator.
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if #[cfg(feature = "wee_alloc")] {
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extern crate wee_alloc;
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#[global_allocator]
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static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
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}
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}
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#[wasm_bindgen]
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#[no_mangle]
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pub fn resize(
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input_image: Vec<u32>,
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input_width: usize,
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input_height: usize,
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factor: usize,
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) -> Vec<u32> {
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let num_output_pixels = input_width * input_height * factor * factor;
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let mut output_image = Vec::<u32>::with_capacity(num_output_pixels * 4);
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output_image.resize(num_output_pixels, 0);
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match factor {
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2 => hqx::hq2x(
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input_image.as_slice(),
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output_image.as_mut_slice(),
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input_width,
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input_height,
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),
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3 => hqx::hq3x(
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input_image.as_slice(),
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output_image.as_mut_slice(),
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input_width,
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input_height,
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),
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4 => hqx::hq4x(
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input_image.as_slice(),
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output_image.as_mut_slice(),
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input_width,
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input_height,
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),
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_ => unreachable!(),
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};
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return output_image;
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}
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