import {Utils} from '../utils/Utils';
/**
*
* @class
* @memberof JC
* @param {number} blurX x轴的模糊值
* @param {number} blurY y轴的模糊值
* @param {number} quality 模糊的质量，模糊计算会被递归多少次
*/
function BlurFilter(blurX, blurY, quality) {
if (Utils.isNumber(blurX) || blurX < 0) blurX = 0;
if (Utils.isNumber(blurY) || blurY < 0) blurY = 0;
if (Utils.isNumber(quality) || quality < 1) quality = 1;
/**
* x轴的模糊值
* @property blurX
* @default 0
* @type Number
**/
this.blurX = blurX | 0;
/**
* y轴的模糊值
* @property blurY
* @default 0
* @type Number
**/
this.blurY = blurY | 0;
/**
* 模糊的质量，模糊计算会被递归多少次
* @property quality
* @default 1
* @type Number
**/
this.quality = quality | 0;
}
/**
* 对渲染对象进行x、y轴同时设置模糊半径
*
* @member {number}
* @name blur
* @memberof JC.BlurFilter#
*/
Object.defineProperty(BlurFilter.prototype, 'blur', {
get: function() {
return this.blurX;
},
set: function(blur) {
this.blurX = this.blurY = blur;
},
});
/* eslint max-len: "off" */
const MUL_TABLE = [1, 171, 205, 293, 57, 373, 79, 137, 241, 27, 391, 357, 41, 19, 283, 265, 497, 469, 443, 421, 25, 191, 365, 349, 335, 161, 155, 149, 9, 278, 269, 261, 505, 245, 475, 231, 449, 437, 213, 415, 405, 395, 193, 377, 369, 361, 353, 345, 169, 331, 325, 319, 313, 307, 301, 37, 145, 285, 281, 69, 271, 267, 263, 259, 509, 501, 493, 243, 479, 118, 465, 459, 113, 446, 55, 435, 429, 423, 209, 413, 51, 403, 199, 393, 97, 3, 379, 375, 371, 367, 363, 359, 355, 351, 347, 43, 85, 337, 333, 165, 327, 323, 5, 317, 157, 311, 77, 305, 303, 75, 297, 294, 73, 289, 287, 71, 141, 279, 277, 275, 68, 135, 67, 133, 33, 262, 260, 129, 511, 507, 503, 499, 495, 491, 61, 121, 481, 477, 237, 235, 467, 232, 115, 457, 227, 451, 7, 445, 221, 439, 218, 433, 215, 427, 425, 211, 419, 417, 207, 411, 409, 203, 202, 401, 399, 396, 197, 49, 389, 387, 385, 383, 95, 189, 47, 187, 93, 185, 23, 183, 91, 181, 45, 179, 89, 177, 11, 175, 87, 173, 345, 343, 341, 339, 337, 21, 167, 83, 331, 329, 327, 163, 81, 323, 321, 319, 159, 79, 315, 313, 39, 155, 309, 307, 153, 305, 303, 151, 75, 299, 149, 37, 295, 147, 73, 291, 145, 289, 287, 143, 285, 71, 141, 281, 35, 279, 139, 69, 275, 137, 273, 17, 271, 135, 269, 267, 133, 265, 33, 263, 131, 261, 130, 259, 129, 257, 1];
const SHG_TABLE = [0, 9, 10, 11, 9, 12, 10, 11, 12, 9, 13, 13, 10, 9, 13, 13, 14, 14, 14, 14, 10, 13, 14, 14, 14, 13, 13, 13, 9, 14, 14, 14, 15, 14, 15, 14, 15, 15, 14, 15, 15, 15, 14, 15, 15, 15, 15, 15, 14, 15, 15, 15, 15, 15, 15, 12, 14, 15, 15, 13, 15, 15, 15, 15, 16, 16, 16, 15, 16, 14, 16, 16, 14, 16, 13, 16, 16, 16, 15, 16, 13, 16, 15, 16, 14, 9, 16, 16, 16, 16, 16, 16, 16, 16, 16, 13, 14, 16, 16, 15, 16, 16, 10, 16, 15, 16, 14, 16, 16, 14, 16, 16, 14, 16, 16, 14, 15, 16, 16, 16, 14, 15, 14, 15, 13, 16, 16, 15, 17, 17, 17, 17, 17, 17, 14, 15, 17, 17, 16, 16, 17, 16, 15, 17, 16, 17, 11, 17, 16, 17, 16, 17, 16, 17, 17, 16, 17, 17, 16, 17, 17, 16, 16, 17, 17, 17, 16, 14, 17, 17, 17, 17, 15, 16, 14, 16, 15, 16, 13, 16, 15, 16, 14, 16, 15, 16, 12, 16, 15, 16, 17, 17, 17, 17, 17, 13, 16, 15, 17, 17, 17, 16, 15, 17, 17, 17, 16, 15, 17, 17, 14, 16, 17, 17, 16, 17, 17, 16, 15, 17, 16, 14, 17, 16, 15, 17, 16, 17, 17, 16, 17, 15, 16, 17, 14, 17, 16, 15, 17, 16, 17, 13, 17, 16, 17, 17, 16, 17, 14, 17, 16, 17, 16, 17, 16, 17, 9];
/* eslint-disable */
BlurFilter.prototype.applyFilter = function(imageData) {
var radiusX = this.blurX >> 1;
if (isNaN(radiusX) || radiusX < 0) return false;
var radiusY = this.blurY >> 1;
if (isNaN(radiusY) || radiusY < 0) return false;
if (radiusX == 0 && radiusY == 0) return false;
var iterations = this.quality;
if (isNaN(iterations) || iterations < 1) iterations = 1;
iterations |= 0;
if (iterations > 3) iterations = 3;
if (iterations < 1) iterations = 1;
var px = imageData.data;
var x = 0,
y = 0,
i = 0,
p = 0,
yp = 0,
yi = 0,
yw = 0,
r = 0,
g = 0,
b = 0,
a = 0,
pr = 0,
pg = 0,
pb = 0,
pa = 0;
var divx = (radiusX + radiusX + 1) | 0;
var divy = (radiusY + radiusY + 1) | 0;
var w = imageData.width | 0;
var h = imageData.height | 0;
var w1 = (w - 1) | 0;
var h1 = (h - 1) | 0;
var rxp1 = (radiusX + 1) | 0;
var ryp1 = (radiusY + 1) | 0;
var ssx = { r: 0, b: 0, g: 0, a: 0 };
var sx = ssx;
for (i = 1; i < divx; i++) {
sx = sx.n = { r: 0, b: 0, g: 0, a: 0 };
}
sx.n = ssx;
var ssy = { r: 0, b: 0, g: 0, a: 0 };
var sy = ssy;
for (i = 1; i < divy; i++) {
sy = sy.n = { r: 0, b: 0, g: 0, a: 0 };
}
sy.n = ssy;
var si = null;
var mtx = MUL_TABLE[radiusX] | 0;
var stx = SHG_TABLE[radiusX] | 0;
var mty = MUL_TABLE[radiusY] | 0;
var sty = SHG_TABLE[radiusY] | 0;
while (iterations-- > 0) {
yw = yi = 0;
var ms = mtx;
var ss = stx;
for (y = h; --y > -1;) {
r = rxp1 * (pr = px[(yi) | 0]);
g = rxp1 * (pg = px[(yi + 1) | 0]);
b = rxp1 * (pb = px[(yi + 2) | 0]);
a = rxp1 * (pa = px[(yi + 3) | 0]);
sx = ssx;
for (i = rxp1; --i > -1;) {
sx.r = pr;
sx.g = pg;
sx.b = pb;
sx.a = pa;
sx = sx.n;
}
for (i = 1; i < rxp1; i++) {
p = (yi + ((w1 < i ? w1 : i) << 2)) | 0;
r += (sx.r = px[p]);
g += (sx.g = px[p + 1]);
b += (sx.b = px[p + 2]);
a += (sx.a = px[p + 3]);
sx = sx.n;
}
si = ssx;
for (x = 0; x < w; x++) {
px[yi++] = (r * ms) >>> ss;
px[yi++] = (g * ms) >>> ss;
px[yi++] = (b * ms) >>> ss;
px[yi++] = (a * ms) >>> ss;
p = ((yw + ((p = x + radiusX + 1) < w1 ? p : w1)) << 2);
r -= si.r - (si.r = px[p]);
g -= si.g - (si.g = px[p + 1]);
b -= si.b - (si.b = px[p + 2]);
a -= si.a - (si.a = px[p + 3]);
si = si.n;
}
yw += w;
}
ms = mty;
ss = sty;
for (x = 0; x < w; x++) {
yi = (x << 2) | 0;
r = (ryp1 * (pr = px[yi])) | 0;
g = (ryp1 * (pg = px[(yi + 1) | 0])) | 0;
b = (ryp1 * (pb = px[(yi + 2) | 0])) | 0;
a = (ryp1 * (pa = px[(yi + 3) | 0])) | 0;
sy = ssy;
for (i = 0; i < ryp1; i++) {
sy.r = pr;
sy.g = pg;
sy.b = pb;
sy.a = pa;
sy = sy.n;
}
yp = w;
for (i = 1; i <= radiusY; i++) {
yi = (yp + x) << 2;
r += (sy.r = px[yi]);
g += (sy.g = px[yi + 1]);
b += (sy.b = px[yi + 2]);
a += (sy.a = px[yi + 3]);
sy = sy.n;
if (i < h1) {
yp += w;
}
}
yi = x;
si = ssy;
if (iterations > 0) {
for (y = 0; y < h; y++) {
p = yi << 2;
px[p + 3] = pa = (a * ms) >>> ss;
if (pa > 0) {
px[p] = ((r * ms) >>> ss);
px[p + 1] = ((g * ms) >>> ss);
px[p + 2] = ((b * ms) >>> ss);
} else {
px[p] = px[p + 1] = px[p + 2] = 0;
}
p = (x + (((p = y + ryp1) < h1 ? p : h1) * w)) << 2;
r -= si.r - (si.r = px[p]);
g -= si.g - (si.g = px[p + 1]);
b -= si.b - (si.b = px[p + 2]);
a -= si.a - (si.a = px[p + 3]);
si = si.n;
yi += w;
}
} else {
for (y = 0; y < h; y++) {
p = yi << 2;
px[p + 3] = pa = (a * ms) >>> ss;
if (pa > 0) {
pa = 255 / pa;
px[p] = ((r * ms) >>> ss) * pa;
px[p + 1] = ((g * ms) >>> ss) * pa;
px[p + 2] = ((b * ms) >>> ss) * pa;
} else {
px[p] = px[p + 1] = px[p + 2] = 0;
}
p = (x + (((p = y + ryp1) < h1 ? p : h1) * w)) << 2;
r -= si.r - (si.r = px[p]);
g -= si.g - (si.g = px[p + 1]);
b -= si.b - (si.b = px[p + 2]);
a -= si.a - (si.a = px[p + 3]);
si = si.n;
yi += w;
}
}
}
}
return true;
};
export { BlurFilter };