Return Uint8ClampedArray in resize operation

codecs/resize/pkg/squoosh_resize.d.ts

@@ -9,9 +9,9 @@
 * @param {number} typ_idx
 * @param {boolean} premultiply
 * @param {boolean} color_space_conversion
-* @returns {Uint8Array}
+* @returns {Uint8ClampedArray}
 */
-export function resize(input_image: Uint8Array, input_width: number, input_height: number, output_width: number, output_height: number, typ_idx: number, premultiply: boolean, color_space_conversion: boolean): Uint8Array;
+export function resize(input_image: Uint8Array, input_width: number, input_height: number, output_width: number, output_height: number, typ_idx: number, premultiply: boolean, color_space_conversion: boolean): Uint8ClampedArray;
 
 export type InitInput = RequestInfo | URL | Response | BufferSource | WebAssembly.Module;
 

codecs/resize/pkg/squoosh_resize.js

@@ -26,8 +26,16 @@ function getInt32Memory0() {
     return cachegetInt32Memory0;
 }
 
-function getArrayU8FromWasm0(ptr, len) {
-    return getUint8Memory0().subarray(ptr / 1, ptr / 1 + len);
+let cachegetUint8ClampedMemory0 = null;
+function getUint8ClampedMemory0() {
+    if (cachegetUint8ClampedMemory0 === null || cachegetUint8ClampedMemory0.buffer !== wasm.memory.buffer) {
+        cachegetUint8ClampedMemory0 = new Uint8ClampedArray(wasm.memory.buffer);
+    }
+    return cachegetUint8ClampedMemory0;
+}
+
+function getClampedArrayU8FromWasm0(ptr, len) {
+    return getUint8ClampedMemory0().subarray(ptr / 1, ptr / 1 + len);
 }
 /**
 * @param {Uint8Array} input_image
@@ -38,7 +46,7 @@ function getArrayU8FromWasm0(ptr, len) {
 * @param {number} typ_idx
 * @param {boolean} premultiply
 * @param {boolean} color_space_conversion
-* @returns {Uint8Array}
+* @returns {Uint8ClampedArray}
 */
 export function resize(input_image, input_width, input_height, output_width, output_height, typ_idx, premultiply, color_space_conversion) {
     try {
@@ -48,7 +56,7 @@ export function resize(input_image, input_width, input_height, output_width, out
         wasm.resize(retptr, ptr0, len0, input_width, input_height, output_width, output_height, typ_idx, premultiply, color_space_conversion);
         var r0 = getInt32Memory0()[retptr / 4 + 0];
         var r1 = getInt32Memory0()[retptr / 4 + 1];
-        var v1 = getArrayU8FromWasm0(r0, r1).slice();
+        var v1 = getClampedArrayU8FromWasm0(r0, r1).slice();
         wasm.__wbindgen_free(r0, r1 * 1);
         return v1;
     } finally {

codecs/resize/pkg/squoosh_resize_bg.wasm.d.ts

@@ -0,0 +1,7 @@
+/* tslint:disable */
+/* eslint-disable */
+export const memory: WebAssembly.Memory;
+export function resize(a: number, b: number, c: number, d: number, e: number, f: number, g: number, h: number, i: number, j: number): void;
+export function __wbindgen_add_to_stack_pointer(a: number): number;
+export function __wbindgen_malloc(a: number): number;
+export function __wbindgen_free(a: number, b: number): void;

codecs/resize/src/lib.rs

@@ -8,6 +8,7 @@ use cfg_if::cfg_if;
 use resize::Pixel;
 use resize::Type;
 use wasm_bindgen::prelude::*;
+use wasm_bindgen::Clamped;
 
 mod srgb;
 use srgb::{linear_to_srgb, Clamp};
@@ -66,7 +67,7 @@ pub fn resize(
     typ_idx: usize,
     premultiply: bool,
     color_space_conversion: bool,
-) -> Vec<u8> {
+) -> Clamped<Vec<u8>> {
     let typ = match typ_idx {
         0 => Type::Triangle,
         1 => Type::Catrom,
@@ -91,7 +92,7 @@ pub fn resize(
             typ,
         );
         resizer.resize(input_image.as_slice(), output_image.as_mut_slice());
-        return output_image;
+        return Clamped(output_image);
     }
 
     // Otherwise, we convert to f32 images to keep the
@@ -138,5 +139,5 @@ pub fn resize(
             .clamp(0.0, 255.0) as u8;
     }
 
-    return output_image;
+    return Clamped(output_image);
 }

libsquoosh/src/codecs.ts

@@ -163,7 +163,8 @@ export const preprocessors = {
           target_width: width,
           target_height: height,
         }));
-        const resizeResult = resize.resize(
+        return new ImageData(
+          resize.resize(
             buffer,
             input_width,
             input_height,
@@ -172,10 +173,7 @@ export const preprocessors = {
             resizeNameToIndex(method),
             premultiply,
             linearRGB,
-        );
-        return new ImageData(
-          // ImageData does not accept Uint8Array so we convert it to a clamped array
-          new Uint8ClampedArray(resizeResult),
+          ),
           width,
           height,
         );

libsquoosh/src/missing-types.d.ts

@@ -18,6 +18,11 @@ declare module 'asset-url:../../codecs/oxipng/pkg/squoosh_oxipng_bg.wasm' {
   export default value;
 }
 
+declare module 'asset-url:../../codecs/resize/pkg/squoosh_resize_bg.wasm' {
+  const value: string;
+  export default value;
+}
+
 // These don't exist in NodeJS types so we're not able to use them but they are referenced in some emscripten and codec types
 // Thus, we need to explicitly assign them to be `never`
 // We're also not able to use the APIs that use these types