????
Your IP : 3.142.200.134
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _utils = require("@jimp/utils");
/**
* Masks a source image on to this image using average pixel colour. A completely black pixel on the mask will turn a pixel in the image completely transparent.
* @param {Jimp} src the source Jimp instance
* @param {number} x the horizontal position to blit the image
* @param {number} y the vertical position to blit the image
* @param {function(Error, Jimp)} cb (optional) a callback for when complete
* @returns {Jimp} this for chaining of methods
*/
var _default = () => ({
mask(src) {
let x = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
let y = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
let cb = arguments.length > 3 ? arguments[3] : undefined;
if (!(src instanceof this.constructor)) {
return _utils.throwError.call(this, "The source must be a Jimp image", cb);
}
if (typeof x !== "number" || typeof y !== "number") {
return _utils.throwError.call(this, "x and y must be numbers", cb);
}
// round input
x = Math.round(x);
y = Math.round(y);
const w = this.bitmap.width;
const h = this.bitmap.height;
const baseImage = this;
src.scanQuiet(0, 0, src.bitmap.width, src.bitmap.height, function (sx, sy, idx) {
const destX = x + sx;
const destY = y + sy;
if (destX >= 0 && destY >= 0 && destX < w && destY < h) {
const dstIdx = baseImage.getPixelIndex(destX, destY);
const {
data
} = this.bitmap;
const avg = (data[idx + 0] + data[idx + 1] + data[idx + 2]) / 3;
baseImage.bitmap.data[dstIdx + 3] *= avg / 255;
}
});
if ((0, _utils.isNodePattern)(cb)) {
cb.call(this, null, this);
}
return this;
}
});
exports.default = _default;
module.exports = exports.default;
module.exports.default = exports.default;
//# sourceMappingURL=index.js.map