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Memory view rather than pointers (#144). Part of #141.

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* Returning an object seems to work well

* This doesn't work

* This does!

* Better cast?

* Updating usage in Squoosh
This commit is contained in:
Jake Archibald
2018-08-21 09:27:04 +01:00
committed by GitHub
parent 1ae65dd4a1
commit 8006a1a5e7
14 changed files with 62 additions and 146 deletions
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23
codecs/webp_enc/example.html
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@@ -20,14 +20,11 @@
module.onRuntimeInitialized = async _ => {
console.log('Version:', module.version().toString(16));
const image = await loadImage('../example.png');
const p = module.create_buffer(image.width, image.height);
module.HEAP8.set(image.data, p);
module.encode(p, image.width, image.height, {
quality: 100,
image_hint: 0,
const result = module.encode(image.data, image.width, image.height, {
quality: 75,
target_size: 0,
target_PSNR: 0,
method: 6,
method: 4,
sns_strength: 50,
filter_strength: 60,
filter_sharpness: 0,
@@ -42,7 +39,7 @@
alpha_compression: 1,
alpha_filtering: 1,
alpha_quality: 100,
lossless: 1,
lossless: 0,
exact: 0,
image_hint: 0,
emulate_jpeg_size: 0,
@@ -52,15 +49,11 @@
use_delta_palette: 0,
use_sharp_yuv: 0,
});
const resultPointer = module.get_result_pointer();
const resultSize = module.get_result_size();
console.log('size', resultSize);
const resultView = new Uint8Array(module.HEAP8.buffer, resultPointer, resultSize);
const result = new Uint8Array(resultView);
module.free_result();
module.destroy_buffer(p);
console.log('size', result.length);
const blob = new Blob([result], {type: 'image/webp'});
module.free_result();
const blobURL = URL.createObjectURL(blob);
const img = document.createElement('img');
img.src = blobURL;