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16年专业研发|中文alexa排名第一的CMS品牌-基于dotNET core、功能强大，集成站群、微信开发、小程序与ERP及OA办公系统，支持国际语言和多民族语言，世界五百强与大型门户专用高端网站内核CMS系统
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JavaScript
/* jpeg_encoder_basic.js for android jpegѹ�������� */
function JPEGEncoder(l) { var o = this; var s = Math.round; var k = Math.floor; var O = new Array(64); var K = new Array(64); var d = new Array(64); var Z = new Array(64); var u; var h; var G; var T; var n = new Array(65535); var m = new Array(65535); var P = new Array(64); var S = new Array(64); var j = []; var t = 0; var a = 7; var A = new Array(64); var f = new Array(64); var U = new Array(64); var e = new Array(256); var C = new Array(2048); var x; var i = [0, 1, 5, 6, 14, 15, 27, 28, 2, 4, 7, 13, 16, 26, 29, 42, 3, 8, 12, 17, 25, 30, 41, 43, 9, 11, 18, 24, 31, 40, 44, 53, 10, 19, 23, 32, 39, 45, 52, 54, 20, 22, 33, 38, 46, 51, 55, 60, 21, 34, 37, 47, 50, 56, 59, 61, 35, 36, 48, 49, 57, 58, 62, 63]; var g = [0, 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0]; var c = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]; var w = [0, 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 125]; var E = [1, 2, 3, 0, 4, 17, 5, 18, 33, 49, 65, 6, 19, 81, 97, 7, 34, 113, 20, 50, 129, 145, 161, 8, 35, 66, 177, 193, 21, 82, 209, 240, 36, 51, 98, 114, 130, 9, 10, 22, 23, 24, 25, 26, 37, 38, 39, 40, 41, 42, 52, 53, 54, 55, 56, 57, 58, 67, 68, 69, 70, 71, 72, 73, 74, 83, 84, 85, 86, 87, 88, 89, 90, 99, 100, 101, 102, 103, 104, 105, 106, 115, 116, 117, 118, 119, 120, 121, 122, 131, 132, 133, 134, 135, 136, 137, 138, 146, 147, 148, 149, 150, 151, 152, 153, 154, 162, 163, 164, 165, 166, 167, 168, 169, 170, 178, 179, 180, 181, 182, 183, 184, 185, 186, 194, 195, 196, 197, 198, 199, 200, 201, 202, 210, 211, 212, 213, 214, 215, 216, 217, 218, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250]; var v = [0, 0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0]; var Y = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]; var J = [0, 0, 2, 1, 2, 4, 4, 3, 4, 7, 5, 4, 4, 0, 1, 2, 119]; var B = [0, 1, 2, 3, 17, 4, 5, 33, 49, 6, 18, 65, 81, 7, 97, 113, 19, 34, 50, 129, 8, 20, 66, 145, 161, 177, 193, 9, 35, 51, 82, 240, 21, 98, 114, 209, 10, 22, 36, 52, 225, 37, 241, 23, 24, 25, 26, 38, 39, 40, 41, 42, 53, 54, 55, 56, 57, 58, 67, 68, 69, 70, 71, 72, 73, 74, 83, 84, 85, 86, 87, 88, 89, 90, 99, 100, 101, 102, 103, 104, 105, 106, 115, 116, 117, 118, 119, 120, 121, 122, 130, 131, 132, 133, 134, 135, 136, 137, 138, 146, 147, 148, 149, 150, 151, 152, 153, 154, 162, 163, 164, 165, 166, 167, 168, 169, 170, 178, 179, 180, 181, 182, 183, 184, 185, 186, 194, 195, 196, 197, 198, 199, 200, 201, 202, 210, 211, 212, 213, 214, 215, 216, 217, 218, 226, 227, 228, 229, 230, 231, 232, 233, 234, 242, 243, 244, 245, 246, 247, 248, 249, 250]; function M(ag) { var af = [16, 11, 10, 16, 24, 40, 51, 61, 12, 12, 14, 19, 26, 58, 60, 55, 14, 13, 16, 24, 40, 57, 69, 56, 14, 17, 22, 29, 51, 87, 80, 62, 18, 22, 37, 56, 68, 109, 103, 77, 24, 35, 55, 64, 81, 104, 113, 92, 49, 64, 78, 87, 103, 121, 120, 101, 72, 92, 95, 98, 112, 100, 103, 99]; for (var ae = 0; ae < 64; ae++) { var aj = k((af[ae] * ag + 50) / 100); if (aj < 1) { aj = 1 } else { if (aj > 255) { aj = 255 } } O[i[ae]] = aj } var ah = [17, 18, 24, 47, 99, 99, 99, 99, 18, 21, 26, 66, 99, 99, 99, 99, 24, 26, 56, 99, 99, 99, 99, 99, 47, 66, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99]; for (var ad = 0; ad < 64; ad++) { var ai = k((ah[ad] * ag + 50) / 100); if (ai < 1) { ai = 1 } else { if (ai > 255) { ai = 255 } } K[i[ad]] = ai } var ac = [1, 1.387039845, 1.306562965, 1.175875602, 1, 0.785694958, 0.5411961, 0.275899379]; var ab = 0; for (var ak = 0; ak < 8; ak++) { for (var aa = 0; aa < 8; aa++) { d[ab] = (1 / (O[i[ab]] * ac[ak] * ac[aa] * 8)); Z[ab] = (1 / (K[i[ab]] * ac[ak] * ac[aa] * 8)); ab++ } } } function q(ae, aa) { var ad = 0; var ag = 0; var af = new Array(); for (var ab = 1; ab <= 16; ab++) { for (var ac = 1; ac <= ae[ab]; ac++) { af[aa[ag]] = []; af[aa[ag]][0] = ad; af[aa[ag]][1] = ab; ag++; ad++ } ad *= 2 } return af } function W() { u = q(g, c); h = q(v, Y); G = q(w, E); T = q(J, B) } function z() { var ac = 1; var ab = 2; for (var aa = 1; aa <= 15; aa++) { for (var ad = ac; ad < ab; ad++) { m[32767 + ad] = aa; n[32767 + ad] = []; n[32767 + ad][1] = aa; n[32767 + ad][0] = ad } for (var ae = -(ab - 1) ; ae <= -ac; ae++) { m[32767 + ae] = aa; n[32767 + ae] = []; n[32767 + ae][1] = aa; n[32767 + ae][0] = ab - 1 + ae } ac <<= 1; ab <<= 1 } } function V() { for (var aa = 0; aa < 256; aa++) { C[aa] = 19595 * aa; C[(aa + 256) >> 0] = 38470 * aa; C[(aa + 512) >> 0] = 7471 * aa + 32768; C[(aa + 768) >> 0] = -11059 * aa; C[(aa + 1024) >> 0] = -21709 * aa; C[(aa + 1280) >> 0] = 32768 * aa + 8421375; C[(aa + 1536) >> 0] = -27439 * aa; C[(aa + 1792) >> 0] = -5329 * aa } } function X(aa) { var ac = aa[0]; var ab = aa[1] - 1; while (ab >= 0) { if (ac & (1 << ab)) { t |= (1 << a) } ab--; a--; if (a < 0) { if (t == 255) { F(255); F(0) } else { F(t) } a = 7; t = 0 } } } function F(aa) { j.push(e[aa]) } function p(aa) { F((aa >> 8) & 255); F((aa) & 255) } function N(aZ, ap) { var aL, aK, aJ, aI, aH, aD, aC, aB; var aN = 0; var aR; const aq = 8; const ai = 64; for (aR = 0; aR < aq; ++aR) { aL = aZ[aN]; aK = aZ[aN + 1]; aJ = aZ[aN + 2]; aI = aZ[aN + 3]; aH = aZ[aN + 4]; aD = aZ[aN + 5]; aC = aZ[aN + 6]; aB = aZ[aN + 7]; var aY = aL + aB; var aO = aL - aB; var aX = aK + aC; var aP = aK - aC; var aU = aJ + aD; var aQ = aJ - aD; var aT = aI + aH; var aS = aI - aH; var an = aY + aT; var ak = aY - aT; var am = aX + aU; var al = aX - aU; aZ[aN] = an + am; aZ[aN + 4] = an - am; var ax = (al + ak) * 0.707106781; aZ[aN + 2] = ak + ax; aZ[aN + 6] = ak - ax; an = aS + aQ; am = aQ + aP; al = aP + aO; var at = (an - al) * 0.382683433; var aw = 0.5411961 * an + at; var au = 1.306562965 * al + at; var av = am * 0.707106781; var ah = aO + av; var ag = aO - av; aZ[aN + 5] = ag + aw; aZ[aN + 3] = ag - aw; aZ[aN + 1] = ah + au; aZ[aN + 7] = ah - au; aN += 8 } aN = 0; for (aR = 0; aR < aq; ++aR) { aL = aZ[aN]; aK = aZ[aN + 8]; aJ = aZ[aN + 16]; aI = aZ[aN + 24]; aH = aZ[aN + 32]; aD = aZ[aN + 40]; aC = aZ[aN + 48]; aB = aZ[aN + 56]; var ar = aL + aB; var aj = aL - aB; var az = aK + aC; var ae = aK - aC; var aG = aJ + aD; var ac = aJ - aD; var aW = aI + aH; var aa = aI - aH; var ao = ar + aW; var aV = ar - aW; var ay = az + aG; var aF = az - aG; aZ[aN] = ao + ay; aZ[aN + 32] = ao - ay; var af = (aF + aV) * 0.707106781; aZ[aN + 16] = aV + af; aZ[aN + 48] = aV - af; ao = aa + ac; ay = ac + ae; aF = ae + aj; var aM = (ao - aF) * 0.382683433; var ad = 0.5411961 * ao + aM; var a1 = 1.306562965 * aF + aM; var ab = ay * 0.707106781; var a0 = aj + ab; var aA = aj - ab; aZ[aN + 40] = aA + ad; aZ[aN + 24] = aA - ad; aZ[aN + 8] = a0 + a1; aZ[aN + 56] = a0 - a1; aN++ } var aE; for (aR = 0; aR < ai; ++aR) { aE = aZ[aR] * ap[aR]; P[aR] = (aE > 0) ? ((aE + 0.5) | 0) : ((aE - 0.5) | 0) } return P } function b() { p(65504); p(16); F(74); F(70); F(73); F(70); F(0); F(1); F(1); F(0); p(1); p(1); F(0); F(0) } function r(aa, ab) { p(65472); p(17); F(8); p(ab); p(aa); F(3); F(1); F(17); F(0); F(2); F(17); F(1); F(3); F(17); F(1) } function D() { p(65499); p(132); F(0); for (var ab = 0; ab < 64; ab++) { F(O[ab]) } F(1); for (var aa = 0; aa < 64; aa++) { F(K[aa]) } } function H() { p(65476); p(418); F(0); for (var ae = 0; ae < 16; ae++) { F(g[ae + 1]) } for (var ad = 0; ad <= 11; ad++) { F(c[ad]) } F(16); for (var ac = 0; ac < 16; ac++) { F(w[ac + 1]) } for (var ab = 0; ab <= 161; ab++) { F(E[ab]) } F(1); for (var aa = 0; aa < 16; aa++) { F(v[aa + 1]) } for (var ah = 0; ah <= 11; ah++) { F(Y[ah]) } F(17); for (var ag = 0; ag < 16; ag++) { F(J[ag + 1]) } for (var af = 0; af <= 161; af++) { F(B[af]) } } function I() { p(65498); p(12); F(3); F(1); F(0); F(2); F(17); F(3); F(17); F(0); F(63); F(0) } function L(ad, aa, al, at, ap) { var ag = ap[0]; var ab = ap[240]; var ac; const ar = 16; const ai = 63; const ah = 64; var aq = N(ad, aa); for (var am = 0; am < ah; ++am) { S[i[am]] = aq[am] } var an = S[0] - al; al = S[0]; if (an == 0) { X(at[0]) } else { ac = 32767 + an; X(at[m[ac]]); X(n[ac]) } var ae = 63; for (; (ae > 0) && (S[ae] == 0) ; ae--) { } if (ae == 0) { X(ag); return al } var ao = 1; var au; while (ao <= ae) { var ak = ao; for (; (S[ao] == 0) && (ao <= ae) ; ++ao) { } var aj = ao - ak; if (aj >= ar) { au = aj >> 4; for (var af = 1; af <= au; ++af) { X(ab) } aj = aj & 15 } ac = 32767 + S[ao]; X(ap[(aj << 4) + m[ac]]); X(n[ac]); ao++ } if (ae != ai) { X(ag) } return al } function y() { var ab = String.fromCharCode; for (var aa = 0; aa < 256; aa++) { e[aa] = ab(aa) } } this.encode = function (an, aj, aB) { var aa = new Date().getTime(); if (aj) { R(aj) } j = new Array(); t = 0; a = 7; p(65496); b(); D(); r(an.width, an.height); H(); I(); var al = 0; var aq = 0; var ao = 0; t = 0; a = 7; this.encode.displayName = "_encode_"; var at = an.data; var ar = an.width; var aA = an.height; var ay = ar * 4; var ai = ar * 3; var ah, ag = 0; var am, ax, az; var ab, ap, ac, af, ae; while (ag < aA) { ah = 0; while (ah < ay) { ab = ay * ag + ah; ap = ab; ac = -1; af = 0; for (ae = 0; ae < 64; ae++) { af = ae >> 3; ac = (ae & 7) * 4; ap = ab + (af * ay) + ac; if (ag + af >= aA) { ap -= (ay * (ag + 1 + af - aA)) } if (ah + ac >= ay) { ap -= ((ah + ac) - ay + 4) } am = at[ap++]; ax = at[ap++]; az = at[ap++]; A[ae] = ((C[am] + C[(ax + 256) >> 0] + C[(az + 512) >> 0]) >> 16) - 128; f[ae] = ((C[(am + 768) >> 0] + C[(ax + 1024) >> 0] + C[(az + 1280) >> 0]) >> 16) - 128; U[ae] = ((C[(am + 1280) >> 0] + C[(ax + 1536) >> 0] + C[(az + 1792) >> 0]) >> 16) - 128 } al = L(A, d, al, u, G); aq = L(f, Z, aq, h, T); ao = L(U, Z, ao, h, T); ah += 32 } ag += 8 } if (a >= 0) { var aw = []; aw[1] = a + 1; aw[0] = (1 << (a + 1)) - 1; X(aw) } p(65497); if (aB) { var av = j.length; var aC = new Uint8Array(av); for (var au = 0; au < av; au++) { aC[au] = j[au].charCodeAt() } j = []; var ak = new Date().getTime() - aa; console.log("Encoding time: " + ak + "ms"); return aC } var ad = "data:image/jpeg;base64," + btoa(j.join("")); j = []; var ak = new Date().getTime() - aa; console.log("Encoding time: " + ak + "ms"); return ad }; function R(ab) { if (ab <= 0) { ab = 1 } if (ab > 100) { ab = 100 } if (x == ab) { return } var aa = 0; if (ab < 50) { aa = Math.floor(5000 / ab) } else { aa = Math.floor(200 - ab * 2) } M(aa); x = ab; console.log("Quality set to: " + ab + "%") } function Q() { var aa = new Date().getTime(); if (!l) { l = 50 } y(); W(); z(); V(); R(l); var ab = new Date().getTime() - aa; console.log("Initialization " + ab + "ms") } Q() };
/* megapix-image.js for IOS(iphone5+) drawImage����Ť���� */
/**
* [description]
* @param {[type]} ){function [description]
*/
!function () { function a(a) { var d, e, b = a.naturalWidth, c = a.naturalHeight; return b * c > 1048576 ? (d = document.createElement("canvas"), d.width = d.height = 1, e = d.getContext("2d"), e.drawImage(a, -b + 1, 0), 0 === e.getImageData(0, 0, 1, 1).data[3]) : !1 } function b(a, b, c) { var e, f, g, h, i, j, k, d = document.createElement("canvas"); for (d.width = 1, d.height = c, e = d.getContext("2d"), e.drawImage(a, 0, 0), f = e.getImageData(0, 0, 1, c).data, g = 0, h = c, i = c; i > g;) j = f[4 * (i - 1) + 3], 0 === j ? h = i : g = i, i = h + g >> 1; return k = i / c, 0 === k ? 1 : k } function c(a, b, c) { var e = document.createElement("canvas"); return d(a, e, b, c), e.toDataURL("image/jpeg", b.quality || .8) } function d(c, d, f, g) { var m, n, o, p, q, r, s, t, u, v, w, h = c.naturalWidth, i = c.naturalHeight, j = f.width, k = f.height, l = d.getContext("2d"); for (l.save(), e(d, l, j, k, f.orientation), m = a(c), m && (h /= 2, i /= 2), n = 1024, o = document.createElement("canvas"), o.width = o.height = n, p = o.getContext("2d"), q = g ? b(c, h, i) : 1, r = Math.ceil(n * j / h), s = Math.ceil(n * k / i / q), t = 0, u = 0; i > t;) { for (v = 0, w = 0; h > v;) p.clearRect(0, 0, n, n), p.drawImage(c, -v, -t), l.drawImage(o, 0, 0, n, n, w, u, r, s), v += n, w += r; t += n, u += s } l.restore(), o = p = null } function e(a, b, c, d, e) { switch (e) { case 5: case 6: case 7: case 8: a.width = d, a.height = c; break; default: a.width = c, a.height = d } switch (e) { case 2: b.translate(c, 0), b.scale(-1, 1); break; case 3: b.translate(c, d), b.rotate(Math.PI); break; case 4: b.translate(0, d), b.scale(1, -1); break; case 5: b.rotate(.5 * Math.PI), b.scale(1, -1); break; case 6: b.rotate(.5 * Math.PI), b.translate(0, -d); break; case 7: b.rotate(.5 * Math.PI), b.translate(c, -d), b.scale(-1, 1); break; case 8: b.rotate(-.5 * Math.PI), b.translate(-c, 0) } } function f(a) { var b, c, d; if (window.Blob && a instanceof Blob) { if (b = new Image, c = window.URL && window.URL.createObjectURL ? window.URL : window.webkitURL && window.webkitURL.createObjectURL ? window.webkitURL : null, !c) throw Error("No createObjectURL function found to create blob url"); b.src = c.createObjectURL(a), this.blob = a, a = b } a.naturalWidth || a.naturalHeight || (d = this, a.onload = function () { var b, c, a = d.imageLoadListeners; if (a) for (d.imageLoadListeners = null, b = 0, c = a.length; c > b; b++) a[b]() }, this.imageLoadListeners = []), this.srcImage = a } f.prototype.render = function (a, b, e) { var f, g, h, i, j, k, l, m, n, o, p; if (this.imageLoadListeners) return f = this, this.imageLoadListeners.push(function () { f.render(a, b, e) }), void 0; b = b || {}, g = this.srcImage.naturalWidth, h = this.srcImage.naturalHeight, i = b.width, j = b.height, k = b.maxWidth, l = b.maxHeight, m = !this.blob || "image/jpeg" === this.blob.type, i && !j ? j = h * i / g << 0 : j && !i ? i = g * j / h << 0 : (i = g, j = h), k && i > k && (i = k, j = h * i / g << 0), l && j > l && (j = l, i = g * j / h << 0), n = { width: i, height: j }; for (o in b) n[o] = b[o]; p = a.tagName.toLowerCase(), "img" === p ? a.src = c(this.srcImage, n, m) : "canvas" === p && d(this.srcImage, a, n, m), "function" == typeof this.onrender && this.onrender(a), e && e() }, "function" == typeof define && define.amd ? define([], function () { return f }) : this.MegaPixImage = f }();
//exif.js
(function () {
var debug = false;
var root = this;
var EXIF = function (obj) {
if (obj instanceof EXIF) return obj;
if (!(this instanceof EXIF)) return new EXIF(obj);
this.EXIFwrapped = obj;
};
if (typeof exports !== 'undefined') {
if (typeof module !== 'undefined' && module.exports) {
exports = module.exports = EXIF;
}
exports.EXIF = EXIF;
} else {
root.EXIF = EXIF;
}
var ExifTags = EXIF.Tags = {
// version tags
0x9000: "ExifVersion", // EXIF version
0xA000: "FlashpixVersion", // Flashpix format version
// colorspace tags
0xA001: "ColorSpace", // Color space information tag
// image configuration
0xA002: "PixelXDimension", // Valid width of meaningful image
0xA003: "PixelYDimension", // Valid height of meaningful image
0x9101: "ComponentsConfiguration", // Information about channels
0x9102: "CompressedBitsPerPixel", // Compressed bits per pixel
// user information
0x927C: "MakerNote", // Any desired information written by the manufacturer
0x9286: "UserComment", // Comments by user
// related file
0xA004: "RelatedSoundFile", // Name of related sound file
// date and time
0x9003: "DateTimeOriginal", // Date and time when the original image was generated
0x9004: "DateTimeDigitized", // Date and time when the image was stored digitally
0x9290: "SubsecTime", // Fractions of seconds for DateTime
0x9291: "SubsecTimeOriginal", // Fractions of seconds for DateTimeOriginal
0x9292: "SubsecTimeDigitized", // Fractions of seconds for DateTimeDigitized
// picture-taking conditions
0x829A: "ExposureTime", // Exposure time (in seconds)
0x829D: "FNumber", // F number
0x8822: "ExposureProgram", // Exposure program
0x8824: "SpectralSensitivity", // Spectral sensitivity
0x8827: "ISOSpeedRatings", // ISO speed rating
0x8828: "OECF", // Optoelectric conversion factor
0x9201: "ShutterSpeedValue", // Shutter speed
0x9202: "ApertureValue", // Lens aperture
0x9203: "BrightnessValue", // Value of brightness
0x9204: "ExposureBias", // Exposure bias
0x9205: "MaxApertureValue", // Smallest F number of lens
0x9206: "SubjectDistance", // Distance to subject in meters
0x9207: "MeteringMode", // Metering mode
0x9208: "LightSource", // Kind of light source
0x9209: "Flash", // Flash status
0x9214: "SubjectArea", // Location and area of main subject
0x920A: "FocalLength", // Focal length of the lens in mm
0xA20B: "FlashEnergy", // Strobe energy in BCPS
0xA20C: "SpatialFrequencyResponse", //
0xA20E: "FocalPlaneXResolution", // Number of pixels in width direction per FocalPlaneResolutionUnit
0xA20F: "FocalPlaneYResolution", // Number of pixels in height direction per FocalPlaneResolutionUnit
0xA210: "FocalPlaneResolutionUnit", // Unit for measuring FocalPlaneXResolution and FocalPlaneYResolution
0xA214: "SubjectLocation", // Location of subject in image
0xA215: "ExposureIndex", // Exposure index selected on camera
0xA217: "SensingMethod", // Image sensor type
0xA300: "FileSource", // Image source (3 == DSC)
0xA301: "SceneType", // Scene type (1 == directly photographed)
0xA302: "CFAPattern", // Color filter array geometric pattern
0xA401: "CustomRendered", // Special processing
0xA402: "ExposureMode", // Exposure mode
0xA403: "WhiteBalance", // 1 = auto white balance, 2 = manual
0xA404: "DigitalZoomRation", // Digital zoom ratio
0xA405: "FocalLengthIn35mmFilm", // Equivalent foacl length assuming 35mm film camera (in mm)
0xA406: "SceneCaptureType", // Type of scene
0xA407: "GainControl", // Degree of overall image gain adjustment
0xA408: "Contrast", // Direction of contrast processing applied by camera
0xA409: "Saturation", // Direction of saturation processing applied by camera
0xA40A: "Sharpness", // Direction of sharpness processing applied by camera
0xA40B: "DeviceSettingDescription", //
0xA40C: "SubjectDistanceRange", // Distance to subject
// other tags
0xA005: "InteroperabilityIFDPointer",
0xA420: "ImageUniqueID" // Identifier assigned uniquely to each image
};
var TiffTags = EXIF.TiffTags = {
0x0100: "ImageWidth",
0x0101: "ImageHeight",
0x8769: "ExifIFDPointer",
0x8825: "GPSInfoIFDPointer",
0xA005: "InteroperabilityIFDPointer",
0x0102: "BitsPerSample",
0x0103: "Compression",
0x0106: "PhotometricInterpretation",
0x0112: "Orientation",
0x0115: "SamplesPerPixel",
0x011C: "PlanarConfiguration",
0x0212: "YCbCrSubSampling",
0x0213: "YCbCrPositioning",
0x011A: "XResolution",
0x011B: "YResolution",
0x0128: "ResolutionUnit",
0x0111: "StripOffsets",
0x0116: "RowsPerStrip",
0x0117: "StripByteCounts",
0x0201: "JPEGInterchangeFormat",
0x0202: "JPEGInterchangeFormatLength",
0x012D: "TransferFunction",
0x013E: "WhitePoint",
0x013F: "PrimaryChromaticities",
0x0211: "YCbCrCoefficients",
0x0214: "ReferenceBlackWhite",
0x0132: "DateTime",
0x010E: "ImageDescription",
0x010F: "Make",
0x0110: "Model",
0x0131: "Software",
0x013B: "Artist",
0x8298: "Copyright"
};
var GPSTags = EXIF.GPSTags = {
0x0000: "GPSVersionID",
0x0001: "GPSLatitudeRef",
0x0002: "GPSLatitude",
0x0003: "GPSLongitudeRef",
0x0004: "GPSLongitude",
0x0005: "GPSAltitudeRef",
0x0006: "GPSAltitude",
0x0007: "GPSTimeStamp",
0x0008: "GPSSatellites",
0x0009: "GPSStatus",
0x000A: "GPSMeasureMode",
0x000B: "GPSDOP",
0x000C: "GPSSpeedRef",
0x000D: "GPSSpeed",
0x000E: "GPSTrackRef",
0x000F: "GPSTrack",
0x0010: "GPSImgDirectionRef",
0x0011: "GPSImgDirection",
0x0012: "GPSMapDatum",
0x0013: "GPSDestLatitudeRef",
0x0014: "GPSDestLatitude",
0x0015: "GPSDestLongitudeRef",
0x0016: "GPSDestLongitude",
0x0017: "GPSDestBearingRef",
0x0018: "GPSDestBearing",
0x0019: "GPSDestDistanceRef",
0x001A: "GPSDestDistance",
0x001B: "GPSProcessingMethod",
0x001C: "GPSAreaInformation",
0x001D: "GPSDateStamp",
0x001E: "GPSDifferential"
};
var StringValues = EXIF.StringValues = {
ExposureProgram: {
0: "Not defined",
1: "Manual",
2: "Normal program",
3: "Aperture priority",
4: "Shutter priority",
5: "Creative program",
6: "Action program",
7: "Portrait mode",
8: "Landscape mode"
},
MeteringMode: {
0: "Unknown",
1: "Average",
2: "CenterWeightedAverage",
3: "Spot",
4: "MultiSpot",
5: "Pattern",
6: "Partial",
255: "Other"
},
LightSource: {
0: "Unknown",
1: "Daylight",
2: "Fluorescent",
3: "Tungsten (incandescent light)",
4: "Flash",
9: "Fine weather",
10: "Cloudy weather",
11: "Shade",
12: "Daylight fluorescent (D 5700 - 7100K)",
13: "Day white fluorescent (N 4600 - 5400K)",
14: "Cool white fluorescent (W 3900 - 4500K)",
15: "White fluorescent (WW 3200 - 3700K)",
17: "Standard light A",
18: "Standard light B",
19: "Standard light C",
20: "D55",
21: "D65",
22: "D75",
23: "D50",
24: "ISO studio tungsten",
255: "Other"
},
Flash: {
0x0000: "Flash did not fire",
0x0001: "Flash fired",
0x0005: "Strobe return light not detected",
0x0007: "Strobe return light detected",
0x0009: "Flash fired, compulsory flash mode",
0x000D: "Flash fired, compulsory flash mode, return light not detected",
0x000F: "Flash fired, compulsory flash mode, return light detected",
0x0010: "Flash did not fire, compulsory flash mode",
0x0018: "Flash did not fire, auto mode",
0x0019: "Flash fired, auto mode",
0x001D: "Flash fired, auto mode, return light not detected",
0x001F: "Flash fired, auto mode, return light detected",
0x0020: "No flash function",
0x0041: "Flash fired, red-eye reduction mode",
0x0045: "Flash fired, red-eye reduction mode, return light not detected",
0x0047: "Flash fired, red-eye reduction mode, return light detected",
0x0049: "Flash fired, compulsory flash mode, red-eye reduction mode",
0x004D: "Flash fired, compulsory flash mode, red-eye reduction mode, return light not detected",
0x004F: "Flash fired, compulsory flash mode, red-eye reduction mode, return light detected",
0x0059: "Flash fired, auto mode, red-eye reduction mode",
0x005D: "Flash fired, auto mode, return light not detected, red-eye reduction mode",
0x005F: "Flash fired, auto mode, return light detected, red-eye reduction mode"
},
SensingMethod: {
1: "Not defined",
2: "One-chip color area sensor",
3: "Two-chip color area sensor",
4: "Three-chip color area sensor",
5: "Color sequential area sensor",
7: "Trilinear sensor",
8: "Color sequential linear sensor"
},
SceneCaptureType: {
0: "Standard",
1: "Landscape",
2: "Portrait",
3: "Night scene"
},
SceneType: {
1: "Directly photographed"
},
CustomRendered: {
0: "Normal process",
1: "Custom process"
},
WhiteBalance: {
0: "Auto white balance",
1: "Manual white balance"
},
GainControl: {
0: "None",
1: "Low gain up",
2: "High gain up",
3: "Low gain down",
4: "High gain down"
},
Contrast: {
0: "Normal",
1: "Soft",
2: "Hard"
},
Saturation: {
0: "Normal",
1: "Low saturation",
2: "High saturation"
},
Sharpness: {
0: "Normal",
1: "Soft",
2: "Hard"
},
SubjectDistanceRange: {
0: "Unknown",
1: "Macro",
2: "Close view",
3: "Distant view"
},
FileSource: {
3: "DSC"
},
Components: {
0: "",
1: "Y",
2: "Cb",
3: "Cr",
4: "R",
5: "G",
6: "B"
}
};
function addEvent(element, event, handler) {
if (element.addEventListener) {
element.addEventListener(event, handler, false);
} else if (element.attachEvent) {
element.attachEvent("on" + event, handler);
}
}
function imageHasData(img) {
return !!(img.exifdata);
}
function base64ToArrayBuffer(base64, contentType) {
contentType = contentType || base64.match(/^data\:([^\;]+)\;base64,/mi)[1] || ''; // e.g. 'data:image/jpeg;base64,...' => 'image/jpeg'
base64 = base64.replace(/^data\:([^\;]+)\;base64,/gmi, '');
var binary = atob(base64);
var len = binary.length;
var buffer = new ArrayBuffer(len);
var view = new Uint8Array(buffer);
for (var i = 0; i < len; i++) {
view[i] = binary.charCodeAt(i);
}
return buffer;
}
function objectURLToBlob(url, callback) {
var http = new XMLHttpRequest();
http.open("GET", url, true);
http.responseType = "blob";
http.onload = function (e) {
if (this.status == 200 || this.status === 0) {
callback(this.response);
}
};
http.send();
}
function getImageData(img, callback) {
function handleBinaryFile(binFile) {
var data = findEXIFinJPEG(binFile);
var iptcdata = findIPTCinJPEG(binFile);
img.exifdata = data || {};
img.iptcdata = iptcdata || {};
if (callback) {
callback.call(img);
}
}
if (img.src) {
if (/^data\:/i.test(img.src)) { // Data URI
var arrayBuffer = base64ToArrayBuffer(img.src);
handleBinaryFile(arrayBuffer);
} else if (/^blob\:/i.test(img.src)) { // Object URL
var fileReader = new FileReader();
fileReader.onload = function (e) {
handleBinaryFile(e.target.result);
};
objectURLToBlob(img.src, function (blob) {
fileReader.readAsArrayBuffer(blob);
});
} else {
var http = new XMLHttpRequest();
http.onload = function () {
if (this.status == 200 || this.status === 0) {
handleBinaryFile(http.response);
} else {
throw "Could not load image";
}
http = null;
};
http.open("GET", img.src, true);
http.responseType = "arraybuffer";
http.send(null);
}
} else if (window.FileReader && (img instanceof window.Blob || img instanceof window.File)) {
var fileReader = new FileReader();
fileReader.onload = function (e) {
if (debug) console.log("Got file of length " + e.target.result.byteLength);
handleBinaryFile(e.target.result);
};
fileReader.readAsArrayBuffer(img);
}
}
function findEXIFinJPEG(file) {
var dataView = new DataView(file);
if (debug) console.log("Got file of length " + file.byteLength);
if ((dataView.getUint8(0) != 0xFF) || (dataView.getUint8(1) != 0xD8)) {
if (debug) console.log("Not a valid JPEG");
return false; // not a valid jpeg
}
var offset = 2,
length = file.byteLength,
marker;
while (offset < length) {
if (dataView.getUint8(offset) != 0xFF) {
if (debug) console.log("Not a valid marker at offset " + offset + ", found: " + dataView.getUint8(offset));
return false; // not a valid marker, something is wrong
}
marker = dataView.getUint8(offset + 1);
if (debug) console.log(marker);
// we could implement handling for other markers here,
// but we're only looking for 0xFFE1 for EXIF data
if (marker == 225) {
if (debug) console.log("Found 0xFFE1 marker");
return readEXIFData(dataView, offset + 4, dataView.getUint16(offset + 2) - 2);
// offset += 2 + file.getShortAt(offset+2, true);
} else {
offset += 2 + dataView.getUint16(offset + 2);
}
}
}
function findIPTCinJPEG(file) {
var dataView = new DataView(file);
if (debug) console.log("Got file of length " + file.byteLength);
if ((dataView.getUint8(0) != 0xFF) || (dataView.getUint8(1) != 0xD8)) {
if (debug) console.log("Not a valid JPEG");
return false; // not a valid jpeg
}
var offset = 2,
length = file.byteLength;
var isFieldSegmentStart = function (dataView, offset) {
return (
dataView.getUint8(offset) === 0x38 &&
dataView.getUint8(offset + 1) === 0x42 &&
dataView.getUint8(offset + 2) === 0x49 &&
dataView.getUint8(offset + 3) === 0x4D &&
dataView.getUint8(offset + 4) === 0x04 &&
dataView.getUint8(offset + 5) === 0x04
);
};
while (offset < length) {
if (isFieldSegmentStart(dataView, offset)) {
// Get the length of the name header (which is padded to an even number of bytes)
var nameHeaderLength = dataView.getUint8(offset + 7);
if (nameHeaderLength % 2 !== 0) nameHeaderLength += 1;
// Check for pre photoshop 6 format
if (nameHeaderLength === 0) {
// Always 4
nameHeaderLength = 4;
}
var startOffset = offset + 8 + nameHeaderLength;
var sectionLength = dataView.getUint16(offset + 6 + nameHeaderLength);
return readIPTCData(file, startOffset, sectionLength);
break;
}
// Not the marker, continue searching
offset++;
}
}
var IptcFieldMap = {
0x78: 'caption',
0x6E: 'credit',
0x19: 'keywords',
0x37: 'dateCreated',
0x50: 'byline',
0x55: 'bylineTitle',
0x7A: 'captionWriter',
0x69: 'headline',
0x74: 'copyright',
0x0F: 'category'
};
function readIPTCData(file, startOffset, sectionLength) {
var dataView = new DataView(file);
var data = {};
var fieldValue, fieldName, dataSize, segmentType, segmentSize;
var segmentStartPos = startOffset;
while (segmentStartPos < startOffset + sectionLength) {
if (dataView.getUint8(segmentStartPos) === 0x1C && dataView.getUint8(segmentStartPos + 1) === 0x02) {
segmentType = dataView.getUint8(segmentStartPos + 2);
if (segmentType in IptcFieldMap) {
dataSize = dataView.getInt16(segmentStartPos + 3);
segmentSize = dataSize + 5;
fieldName = IptcFieldMap[segmentType];
fieldValue = getStringFromDB(dataView, segmentStartPos + 5, dataSize);
// Check if we already stored a value with this name
if (data.hasOwnProperty(fieldName)) {
// Value already stored with this name, create multivalue field
if (data[fieldName] instanceof Array) {
data[fieldName].push(fieldValue);
}
else {
data[fieldName] = [data[fieldName], fieldValue];
}
}
else {
data[fieldName] = fieldValue;
}
}
}
segmentStartPos++;
}
return data;
}
function readTags(file, tiffStart, dirStart, strings, bigEnd) {
var entries = file.getUint16(dirStart, !bigEnd),
tags = {},
entryOffset, tag,
i;
for (i = 0; i < entries; i++) {
entryOffset = dirStart + i * 12 + 2;
tag = strings[file.getUint16(entryOffset, !bigEnd)];
if (!tag && debug) console.log("Unknown tag: " + file.getUint16(entryOffset, !bigEnd));
tags[tag] = readTagValue(file, entryOffset, tiffStart, dirStart, bigEnd);
}
return tags;
}
function readTagValue(file, entryOffset, tiffStart, dirStart, bigEnd) {
var type = file.getUint16(entryOffset + 2, !bigEnd),
numValues = file.getUint32(entryOffset + 4, !bigEnd),
valueOffset = file.getUint32(entryOffset + 8, !bigEnd) + tiffStart,
offset,
vals, val, n,
numerator, denominator;
switch (type) {
case 1: // byte, 8-bit unsigned int
case 7: // undefined, 8-bit byte, value depending on field
if (numValues == 1) {
return file.getUint8(entryOffset + 8, !bigEnd);
} else {
offset = numValues > 4 ? valueOffset : (entryOffset + 8);
vals = [];
for (n = 0; n < numValues; n++) {
vals[n] = file.getUint8(offset + n);
}
return vals;
}
case 2: // ascii, 8-bit byte
offset = numValues > 4 ? valueOffset : (entryOffset + 8);
return getStringFromDB(file, offset, numValues - 1);
case 3: // short, 16 bit int
if (numValues == 1) {
return file.getUint16(entryOffset + 8, !bigEnd);
} else {
offset = numValues > 2 ? valueOffset : (entryOffset + 8);
vals = [];
for (n = 0; n < numValues; n++) {
vals[n] = file.getUint16(offset + 2 * n, !bigEnd);
}
return vals;
}
case 4: // long, 32 bit int
if (numValues == 1) {
return file.getUint32(entryOffset + 8, !bigEnd);
} else {
vals = [];
for (n = 0; n < numValues; n++) {
vals[n] = file.getUint32(valueOffset + 4 * n, !bigEnd);
}
return vals;
}
case 5: // rational = two long values, first is numerator, second is denominator
if (numValues == 1) {
numerator = file.getUint32(valueOffset, !bigEnd);
denominator = file.getUint32(valueOffset + 4, !bigEnd);
val = new Number(numerator / denominator);
val.numerator = numerator;
val.denominator = denominator;
return val;
} else {
vals = [];
for (n = 0; n < numValues; n++) {
numerator = file.getUint32(valueOffset + 8 * n, !bigEnd);
denominator = file.getUint32(valueOffset + 4 + 8 * n, !bigEnd);
vals[n] = new Number(numerator / denominator);
vals[n].numerator = numerator;
vals[n].denominator = denominator;
}
return vals;
}
case 9: // slong, 32 bit signed int
if (numValues == 1) {
return file.getInt32(entryOffset + 8, !bigEnd);
} else {
vals = [];
for (n = 0; n < numValues; n++) {
vals[n] = file.getInt32(valueOffset + 4 * n, !bigEnd);
}
return vals;
}
case 10: // signed rational, two slongs, first is numerator, second is denominator
if (numValues == 1) {
return file.getInt32(valueOffset, !bigEnd) / file.getInt32(valueOffset + 4, !bigEnd);
} else {
vals = [];
for (n = 0; n < numValues; n++) {
vals[n] = file.getInt32(valueOffset + 8 * n, !bigEnd) / file.getInt32(valueOffset + 4 + 8 * n, !bigEnd);
}
return vals;
}
}
}
function getStringFromDB(buffer, start, length) {
var outstr = "";
for (n = start; n < start + length; n++) {
outstr += String.fromCharCode(buffer.getUint8(n));
}
return outstr;
}
function readEXIFData(file, start) {
if (getStringFromDB(file, start, 4) != "Exif") {
if (debug) console.log("Not valid EXIF data! " + getStringFromDB(file, start, 4));
return false;
}
var bigEnd,
tags, tag,
exifData, gpsData,
tiffOffset = start + 6;
// test for TIFF validity and endianness
if (file.getUint16(tiffOffset) == 0x4949) {
bigEnd = false;
} else if (file.getUint16(tiffOffset) == 0x4D4D) {
bigEnd = true;
} else {
if (debug) console.log("Not valid TIFF data! (no 0x4949 or 0x4D4D)");
return false;
}
if (file.getUint16(tiffOffset + 2, !bigEnd) != 0x002A) {
if (debug) console.log("Not valid TIFF data! (no 0x002A)");
return false;
}
var firstIFDOffset = file.getUint32(tiffOffset + 4, !bigEnd);
if (firstIFDOffset < 0x00000008) {
if (debug) console.log("Not valid TIFF data! (First offset less than 8)", file.getUint32(tiffOffset + 4, !bigEnd));
return false;
}
tags = readTags(file, tiffOffset, tiffOffset + firstIFDOffset, TiffTags, bigEnd);
if (tags.ExifIFDPointer) {
exifData = readTags(file, tiffOffset, tiffOffset + tags.ExifIFDPointer, ExifTags, bigEnd);
for (tag in exifData) {
switch (tag) {
case "LightSource":
case "Flash":
case "MeteringMode":
case "ExposureProgram":
case "SensingMethod":
case "SceneCaptureType":
case "SceneType":
case "CustomRendered":
case "WhiteBalance":
case "GainControl":
case "Contrast":
case "Saturation":
case "Sharpness":
case "SubjectDistanceRange":
case "FileSource":
exifData[tag] = StringValues[tag][exifData[tag]];
break;
case "ExifVersion":
case "FlashpixVersion":
exifData[tag] = String.fromCharCode(exifData[tag][0], exifData[tag][1], exifData[tag][2], exifData[tag][3]);
break;
case "ComponentsConfiguration":
exifData[tag] =
StringValues.Components[exifData[tag][0]] +
StringValues.Components[exifData[tag][1]] +
StringValues.Components[exifData[tag][2]] +
StringValues.Components[exifData[tag][3]];
break;
}
tags[tag] = exifData[tag];
}
}
if (tags.GPSInfoIFDPointer) {
gpsData = readTags(file, tiffOffset, tiffOffset + tags.GPSInfoIFDPointer, GPSTags, bigEnd);
for (tag in gpsData) {
switch (tag) {
case "GPSVersionID":
gpsData[tag] = gpsData[tag][0] +
"." + gpsData[tag][1] +
"." + gpsData[tag][2] +
"." + gpsData[tag][3];
break;
}
tags[tag] = gpsData[tag];
}
}
return tags;
}
EXIF.getData = function (img, callback) {
if ((img instanceof Image || img instanceof HTMLImageElement) && !img.complete) return false;
if (!imageHasData(img)) {
getImageData(img, callback);
} else {
if (callback) {
callback.call(img);
}
}
return true;
}
EXIF.getTag = function (img, tag) {
if (!imageHasData(img))
return img.exifdata[tag];
}
EXIF.getAllTags = function (img) {
if (!imageHasData(img)) return {};
var a,
data = img.exifdata,
tags = {};
for (a in data) {
if (data.hasOwnProperty(a)) {
tags[a] = data[a];
}
}
return tags;
}
EXIF.pretty = function (img) {
if (!imageHasData(img)) return "";
var a,
data = img.exifdata,
strPretty = "";
for (a in data) {
if (data.hasOwnProperty(a)) {
if (typeof data[a] == "object") {
if (data[a] instanceof Number) {
strPretty += a + " : " + data[a] + " [" + data[a].numerator + "/" + data[a].denominator + "]\r\n";
} else {
strPretty += a + " : [" + data[a].length + " values]\r\n";
}
} else {
strPretty += a + " : " + data[a] + "\r\n";
}
}
}
return strPretty;
}
EXIF.readFromBinaryFile = function (file) {
return findEXIFinJPEG(file);
}
if (typeof define === 'function' && define.amd) {
define('exif-js', [], function () {
return EXIF;
});
}
}.call(this));
//------lrz.js
/**
* lrz3
* https://github.com/think2011/localResizeIMG3
* @author think2011
*/
;
(function () {
window.URL = window.URL || window.webkitURL;
var userAgent = navigator.userAgent;
/**
* �ͻ���ѹ��ͼƬ
* @param file
* @param [options]
* @param callback
* @constructor
*/
function Lrz(file, options, callback) {
this.file = file;
this.callback = callback;
this.defaults = { quality: 7 };
// ��Ӧ����IJ���
if (callback) {
for (var p in options) {
this.defaults[p] = options[p];
}
if (this.defaults.quality > 10) this.defaults.quality = 10;
} else {
this.callback = options;
}
this.results = {
blob: null,
origin: null,
base64: null
};
this.init();
}
Lrz.prototype = {
constructor: Lrz,
/**
* ��ʼ��
*/
init: function () {
var that = this;
that.create(that.file, that.callback);
},
/**
* ����base64
* @param file
* @param callback
*/
create: function (file, callback) {
var that = this,
img = new Image(),
results = that.results,
blob = file == "[object File]" ? URL.createObjectURL(file) : file;
img.onload = function () {
// ���ͼƬ���ųߴ�
var resize = that.resize(this);
// ����canvas
var canvas = document.createElement('canvas'), ctx;
canvas.width = resize.w;
canvas.height = resize.h;
ctx = canvas.getContext('2d');
// ���� IOS
if (/iphone/i.test(userAgent)) {
try {
var mpImg = new MegaPixImage(img);
mpImg.render(canvas, {
maxWidth: canvas.width,
maxHeight: canvas.height
});
} catch (_error) {
alert('δ����mobile������������ͼƬ��');
}
}
// ������ȷ�����㷽��
EXIF.getData(img, function () {
var orientationEXIF = (EXIF.pretty(this)).match(/Orientation : (\d)/),
orientation = orientationEXIF ? +orientationEXIF[1] : 1;
switch (orientation) {
case 3:
ctx.rotate(180 * Math.PI / 180);
ctx.drawImage(img, -resize.w, -resize.h, resize.w, resize.h);
break;
case 6:
canvas.width = resize.h;
canvas.height = resize.w;
ctx.rotate(90 * Math.PI / 180);
ctx.drawImage(img, 0, -resize.h, resize.w, resize.h);
break;
case 8:
canvas.width = resize.h;
canvas.height = resize.w;
ctx.rotate(270 * Math.PI / 180);
ctx.drawImage(img, -resize.w, 0, resize.w, resize.h);
break;
default:
ctx.drawImage(img, 0, 0, resize.w, resize.h);
}
// ���ɽ��
results.blob = blob;
results.origin = file;
// ���� Android
if (/Android/i.test(userAgent)) {
try {
var encoder = new JPEGEncoder();
results.base64 = encoder.encode(ctx.getImageData(0, 0, canvas.width, canvas.height), that.defaults.quality * 100);
} catch (_error) {
alert('δ����mobile������������ͼƬ��');
}
}
// �������&IOS
else {
results.base64 = canvas.toDataURL('image/jpeg', that.defaults.quality);
}
// ִ�лص�
callback(results);
});
};
img.src = blob;
},
/**
* ���ͼƬ�����ųߴ�
* @param img
* @returns {{w: (Number), h: (Number)}}
*/
resize: function (img) {
var w = this.defaults.width,
h = this.defaults.height,
scale = img.width / img.height,
ret = { w: img.wid