Function getClippedPixels

test/unit/webgl/p5.RendererGL.js:2509–2526

(mode, mask)

  suite('clip()', function() {
    //let myp5;
    function getClippedPixels(mode, mask) {
      // Clean up the last myp5 instance, since this may be called more than
      // once per test
      myp5.remove();
      myp5 = new p5(function(p) {
        p.setup = function() {};
        p.draw = function() {};
      });

      myp5.createCanvas(50, 50, mode);
      myp5.pixelDensity(1);
      if (mode === myp5.WEBGL) {
        myp5.translate(-myp5.width / 2, -myp5.height / 2);
      }
      mask();
      myp5.loadPixels();
      return [...myp5.pixels];
    }

    function getPixel(pixels, x, y) {
      const start = (y * myp5.width + x) * 4;