mattdesl

NFT Statement

Feb 26, 2021

I have decided to release a small set of single-edition NFTs on OpenSea.

I plan to place 100% of direct proceeds from the first sale toward the Bounty for More Eco-Friendly NFTs being developed by Artnome and GitCoin, and 25% of direct proceeds of each of the subsequent 9 artworks in this series toward the same fund.

You can bid/purchase/view the first minted artwork here, and the full series here. At the time of writing, I have only placed 1 artwork on auction, but will place the other 9 in the coming days/weeks.

mattdesl

// get a pointer to 16 bytes of WASM memory
const byteLength = 16;
const pointer = Module._malloc(byteLength);

// e.g. let's set all values to 0xff (255)
for (let i = 0; i < byteLength; i++) {
  const idx = pointer + i;
  Module.HEAPU8[idx] = 0xff;
}

mattdesl

let buffer = new Uint8Array(2048);
let index = 0;
let blocked = [];

// allocate a pointer with given byteLength
function malloc (byteLength) {
  let size = alignToBlockSize(byteLength);
  let index = findFreeIndex(size);
  
  // no free blocks in memory, gotta expand...

mattdesl

export default function createFile(initialCapacity = 256) {
  let cursor = 0;
  let usedBytes = 0;
  let contents = new Uint8Array(initialCapacity);
  return {
    contents: function () {
      return contents.slice(0, usedBytes);
    },
    seek: function (offset) {
      // offset in bytes

mattdesl

// setup a new encoder with a write callback
const enc = Module.create_encoder(writeEncodedData);

// do some encoding
// ...

// dispose encoder
Module.free_encoder(enc);

// The write callback

mattdesl

using namespace emscripten;

// The struct will hold encoder instance data
typedef struct MyEncoder {
  // The JavaScript callback that writes encoded data to output
  std::function<int(uint8_t *data, uint32_t size)> callback;

  // other instance data ...
  uint32_t width;
  uint32_t height;

mattdesl

void encode (uintptr_t rgb_buffer_ptr)
{
  uint8_t* rgb = reinterpret_cast<uint8_t*>(rgb_buffer_ptr);
  // now you can do something with the rgb data...
}

mattdesl

for i in *.tif; do sips -s format jpeg -s formatOptions best $i --out ${i%tif}converted.jpg;done

mattdesl

test-avc

Test AVC codec quality problems with WebCodecs.

To run, git clone this gist, then serve it locally in Chrome Canary with WebCodecs enabled.

git clone https://gist.github.com/a682dbe63efa074514a500724d712955.git test-avc

mattdesl

// npm canvas-sketch-cli -g
// canvas-sketch sketch.js --open

const canvasSketch = require('canvas-sketch');
const H264 = require('h264-mp4-encoder');
const { lerp } = require("canvas-sketch-util/math");

const settings = {
  duration: 4,
  dimensions: [1024, 1024],