pixi.js/lib/rendering/renderers/gl/shader/getBatchSamplersUniformGroup.js

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

'use strict';

var UniformGroup = require('../../shared/shader/UniformGroup.js');

"use strict";
const batchSamplersUniformGroupHash = {};
function getBatchSamplersUniformGroup(maxTextures) {
  let batchSamplersUniformGroup = batchSamplersUniformGroupHash[maxTextures];
  if (batchSamplersUniformGroup)
    return batchSamplersUniformGroup;
  const sampleValues = new Int32Array(maxTextures);
  for (let i = 0; i < maxTextures; i++) {
    sampleValues[i] = i;
  }
  batchSamplersUniformGroup = batchSamplersUniformGroupHash[maxTextures] = new UniformGroup.UniformGroup({
    uTextures: { value: sampleValues, type: `i32`, size: maxTextures }
  }, { isStatic: true });
  return batchSamplersUniformGroup;
}

exports.getBatchSamplersUniformGroup = getBatchSamplersUniformGroup;
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