pixi.js/lib/rendering/renderers/gl/shader/utils/generateArraySyncSTD40.js

PixiJS — The HTML5 Creation Engine =============

'use strict';

var createUboElementsSTD40 = require('./createUboElementsSTD40.js');

"use strict";
function generateArraySyncSTD40(uboElement, offsetToAdd) {
  const rowSize = Math.max(createUboElementsSTD40.WGSL_TO_STD40_SIZE[uboElement.data.type] / 16, 1);
  const elementSize = uboElement.data.value.length / uboElement.data.size;
  const remainder = (4 - elementSize % 4) % 4;
  return `
        v = uv.${uboElement.data.name};
        offset += ${offsetToAdd};

        arrayOffset = offset;

        t = 0;

        for(var i=0; i < ${uboElement.data.size * rowSize}; i++)
        {
            for(var j = 0; j < ${elementSize}; j++)
            {
                data[arrayOffset++] = v[t++];
            }
            ${remainder !== 0 ? `arrayOffset += ${remainder};` : ""}
        }
    `;
}

exports.generateArraySyncSTD40 = generateArraySyncSTD40;
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