@pixi/core/lib/shader/utils/setPrecision.js

Core PixiJS

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var constants = require('@pixi/constants');

function setPrecision(src, requestedPrecision, maxSupportedPrecision) {
  if (src.substring(0, 9) !== "precision") {
    let precision = requestedPrecision;
    if (requestedPrecision === constants.PRECISION.HIGH && maxSupportedPrecision !== constants.PRECISION.HIGH) {
      precision = constants.PRECISION.MEDIUM;
    }
    return `precision ${precision} float;
${src}`;
  } else if (maxSupportedPrecision !== constants.PRECISION.HIGH && src.substring(0, 15) === "precision highp") {
    return src.replace("precision highp", "precision mediump");
  }
  return src;
}

exports.setPrecision = setPrecision;
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