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							- "use strict";
 
- var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
 
- Object.defineProperty(exports, "__esModule", {
 
-   value: true
 
- });
 
- exports["default"] = void 0;
 
- var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
 
- var _pngjs = require("pngjs");
 
- var _utils = require("@jimp/utils");
 
- var MIME_TYPE = 'image/png'; // PNG filter types
 
- var PNG_FILTER_AUTO = -1;
 
- var PNG_FILTER_NONE = 0;
 
- var PNG_FILTER_SUB = 1;
 
- var PNG_FILTER_UP = 2;
 
- var PNG_FILTER_AVERAGE = 3;
 
- var PNG_FILTER_PATH = 4;
 
- var _default = function _default() {
 
-   return {
 
-     mime: (0, _defineProperty2["default"])({}, MIME_TYPE, ['png']),
 
-     constants: {
 
-       MIME_PNG: MIME_TYPE,
 
-       PNG_FILTER_AUTO: PNG_FILTER_AUTO,
 
-       PNG_FILTER_NONE: PNG_FILTER_NONE,
 
-       PNG_FILTER_SUB: PNG_FILTER_SUB,
 
-       PNG_FILTER_UP: PNG_FILTER_UP,
 
-       PNG_FILTER_AVERAGE: PNG_FILTER_AVERAGE,
 
-       PNG_FILTER_PATH: PNG_FILTER_PATH
 
-     },
 
-     hasAlpha: (0, _defineProperty2["default"])({}, MIME_TYPE, true),
 
-     decoders: (0, _defineProperty2["default"])({}, MIME_TYPE, _pngjs.PNG.sync.read),
 
-     encoders: (0, _defineProperty2["default"])({}, MIME_TYPE, function (data) {
 
-       var png = new _pngjs.PNG({
 
-         width: data.bitmap.width,
 
-         height: data.bitmap.height
 
-       });
 
-       png.data = data.bitmap.data;
 
-       return _pngjs.PNG.sync.write(png, {
 
-         width: data.bitmap.width,
 
-         height: data.bitmap.height,
 
-         deflateLevel: data._deflateLevel,
 
-         deflateStrategy: data._deflateStrategy,
 
-         filterType: data._filterType,
 
-         colorType: typeof data._colorType === 'number' ? data._colorType : data._rgba ? 6 : 2,
 
-         inputHasAlpha: data._rgba
 
-       });
 
-     }),
 
-     "class": {
 
-       _deflateLevel: 9,
 
-       _deflateStrategy: 3,
 
-       _filterType: PNG_FILTER_AUTO,
 
-       _colorType: null,
 
-       /**
 
-        * Sets the deflate level used when saving as PNG format (default is 9)
 
-        * @param {number} l Deflate level to use 0-9. 0 is no compression. 9 (default) is maximum compression.
 
-        * @param {function(Error, Jimp)} cb (optional) a callback for when complete
 
-        * @returns {Jimp} this for chaining of methods
 
-        */
 
-       deflateLevel: function deflateLevel(l, cb) {
 
-         if (typeof l !== 'number') {
 
-           return _utils.throwError.call(this, 'l must be a number', cb);
 
-         }
 
-         if (l < 0 || l > 9) {
 
-           return _utils.throwError.call(this, 'l must be a number 0 - 9', cb);
 
-         }
 
-         this._deflateLevel = Math.round(l);
 
-         if ((0, _utils.isNodePattern)(cb)) {
 
-           cb.call(this, null, this);
 
-         }
 
-         return this;
 
-       },
 
-       /**
 
-        * Sets the deflate strategy used when saving as PNG format (default is 3)
 
-        * @param {number} s Deflate strategy to use 0-3.
 
-        * @param {function(Error, Jimp)} cb (optional) a callback for when complete
 
-        * @returns {Jimp} this for chaining of methods
 
-        */
 
-       deflateStrategy: function deflateStrategy(s, cb) {
 
-         if (typeof s !== 'number') {
 
-           return _utils.throwError.call(this, 's must be a number', cb);
 
-         }
 
-         if (s < 0 || s > 3) {
 
-           return _utils.throwError.call(this, 's must be a number 0 - 3', cb);
 
-         }
 
-         this._deflateStrategy = Math.round(s);
 
-         if ((0, _utils.isNodePattern)(cb)) {
 
-           cb.call(this, null, this);
 
-         }
 
-         return this;
 
-       },
 
-       /**
 
-        * Sets the filter type used when saving as PNG format (default is automatic filters)
 
-        * @param {number} f The quality to use -1-4.
 
-        * @param {function(Error, Jimp)} cb (optional) a callback for when complete
 
-        * @returns {Jimp} this for chaining of methods
 
-        */
 
-       filterType: function filterType(f, cb) {
 
-         if (typeof f !== 'number') {
 
-           return _utils.throwError.call(this, 'n must be a number', cb);
 
-         }
 
-         if (f < -1 || f > 4) {
 
-           return _utils.throwError.call(this, 'n must be -1 (auto) or a number 0 - 4', cb);
 
-         }
 
-         this._filterType = Math.round(f);
 
-         if ((0, _utils.isNodePattern)(cb)) {
 
-           cb.call(this, null, this);
 
-         }
 
-         return this;
 
-       },
 
-       /**
 
-        * Sets the color type used when saving as PNG format
 
-        * @param {number} s color type to use 0, 2, 4, 6.
 
-        * @param {function(Error, Jimp)} cb (optional) a callback for when complete
 
-        * @returns {Jimp} this for chaining of methods
 
-        */
 
-       colorType: function colorType(s, cb) {
 
-         if (typeof s !== 'number') {
 
-           return _utils.throwError.call(this, 's must be a number', cb);
 
-         }
 
-         if (s !== 0 && s !== 2 && s !== 4 && s !== 6) {
 
-           return _utils.throwError.call(this, 's must be a number 0, 2, 4, 6.', cb);
 
-         }
 
-         this._colorType = Math.round(s);
 
-         if ((0, _utils.isNodePattern)(cb)) {
 
-           cb.call(this, null, this);
 
-         }
 
-         return this;
 
-       }
 
-     }
 
-   };
 
- };
 
- exports["default"] = _default;
 
- //# sourceMappingURL=index.js.map
 
 
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