forked from external-repos/squoosh
f2f467ecb8
* Flailing * Holy shit struct binding * Options in the encoder! * Integrating webp options * Addressing feedback * This isn't needed anymore
70 lines
2.0 KiB
HTML
70 lines
2.0 KiB
HTML
<!doctype html>
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<script src='webp_enc.js'></script>
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<script>
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const module = webp_enc();
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async function loadImage(src) {
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// Load image
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const img = document.createElement('img');
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img.src = src;
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await new Promise(resolve => img.onload = resolve);
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// Make canvas same size as image
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const canvas = document.createElement('canvas');
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[canvas.width, canvas.height] = [img.width, img.height];
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// Draw image onto canvas
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const ctx = canvas.getContext('2d');
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ctx.drawImage(img, 0, 0);
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return ctx.getImageData(0, 0, img.width, img.height);
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}
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module.onRuntimeInitialized = async _ => {
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console.log('Version:', module.version().toString(16));
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const image = await loadImage('../example.png');
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const p = module.create_buffer(image.width, image.height);
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module.HEAP8.set(image.data, p);
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module.encode(p, image.width, image.height, {
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quality: 100,
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image_hint: 0,
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target_size: 0,
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target_PSNR: 0,
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method: 6,
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sns_strength: 50,
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filter_strength: 60,
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filter_sharpness: 0,
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filter_type: 1,
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partitions: 0,
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segments: 4,
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pass: 1,
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show_compressed: 0,
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preprocessing: 0,
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autofilter: 0,
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partition_limit: 0,
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alpha_compression: 1,
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alpha_filtering: 1,
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alpha_quality: 100,
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lossless: 1,
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exact: 0,
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image_hint: 0,
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emulate_jpeg_size: 0,
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thread_level: 0,
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low_memory: 0,
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near_lossless: 100,
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use_delta_palette: 0,
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use_sharp_yuv: 0,
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});
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const resultPointer = module.get_result_pointer();
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const resultSize = module.get_result_size();
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console.log('size', resultSize);
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const resultView = new Uint8Array(module.HEAP8.buffer, resultPointer, resultSize);
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const result = new Uint8Array(resultView);
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module.free_result();
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module.destroy_buffer(p);
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const blob = new Blob([result], {type: 'image/webp'});
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const blobURL = URL.createObjectURL(blob);
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const img = document.createElement('img');
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img.src = blobURL;
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document.body.appendChild(img);
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};
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</script>
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