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

Core PixiJS

'use strict';

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

function booleanArray(size) {
  const array = new Array(size);
  for (let i = 0; i < array.length; i++) {
    array[i] = false;
  }
  return array;
}
function defaultValue(type, size) {
  switch (type) {
    case "float":
      return 0;
    case "vec2":
      return new Float32Array(2 * size);
    case "vec3":
      return new Float32Array(3 * size);
    case "vec4":
      return new Float32Array(4 * size);
    case "int":
    case "uint":
    case "sampler2D":
    case "sampler2DArray":
      return 0;
    case "ivec2":
      return new Int32Array(2 * size);
    case "ivec3":
      return new Int32Array(3 * size);
    case "ivec4":
      return new Int32Array(4 * size);
    case "uvec2":
      return new Uint32Array(2 * size);
    case "uvec3":
      return new Uint32Array(3 * size);
    case "uvec4":
      return new Uint32Array(4 * size);
    case "bool":
      return false;
    case "bvec2":
      return booleanArray(2 * size);
    case "bvec3":
      return booleanArray(3 * size);
    case "bvec4":
      return booleanArray(4 * size);
    case "mat2":
      return new Float32Array([
        1,
        0,
        0,
        1
      ]);
    case "mat3":
      return new Float32Array([
        1,
        0,
        0,
        0,
        1,
        0,
        0,
        0,
        1
      ]);
    case "mat4":
      return new Float32Array([
        1,
        0,
        0,
        0,
        0,
        1,
        0,
        0,
        0,
        0,
        1,
        0,
        0,
        0,
        0,
        1
      ]);
  }
  return null;
}

exports.defaultValue = defaultValue;
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