player/js/utils/common.js

var subframeEnabled = true;
var expressionsPlugin;
var isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
var cachedColors = {};
var bm_rounder = Math.round;
var bm_rnd;
var bm_pow = Math.pow;
var bm_sqrt = Math.sqrt;
var bm_abs = Math.abs;
var bm_floor = Math.floor;
var bm_max = Math.max;
var bm_min = Math.min;
var blitter = 10;

var BMMath = {};
(function(){
    var propertyNames = Object.getOwnPropertyNames(Math);
    var i, len = propertyNames.length;
    for(i=0;i<len;i+=1){
        BMMath[propertyNames[i]] = Math[propertyNames[i]];
    }
}());

function ProjectInterface(){return {};}

BMMath.random = Math.random;
BMMath.abs = function(val){
    var tOfVal = typeof val;
    if(tOfVal === 'object' && val.length){
        var absArr = createSizedArray(val.length);
        var i, len = val.length;
        for(i=0;i<len;i+=1){
            absArr[i] = Math.abs(val[i]);
        }
        return absArr;
    }
    return Math.abs(val);

};
var defaultCurveSegments = 150;
var degToRads = Math.PI/180;
var roundCorner = 0.5519;

function roundValues(flag){
    if(flag){
        bm_rnd = Math.round;
    }else{
        bm_rnd = function(val){
            return val;
        };
    }
}
roundValues(false);

function styleDiv(element){
    element.style.position = 'absolute';
    element.style.top = 0;
    element.style.left = 0;
    element.style.display = 'block';
    element.style.transformOrigin = element.style.webkitTransformOrigin = '0 0';
    element.style.backfaceVisibility  = element.style.webkitBackfaceVisibility = 'visible';
    element.style.transformStyle = element.style.webkitTransformStyle = element.style.mozTransformStyle = "preserve-3d";
}

function BMEnterFrameEvent(n,c,t,d){
    this.type = n;
    this.currentTime = c;
    this.totalTime = t;
    this.direction = d < 0 ? -1:1;
}

function BMCompleteEvent(n,d){
    this.type = n;
    this.direction = d < 0 ? -1:1;
}

function BMCompleteLoopEvent(n,c,t,d){
    this.type = n;
    this.currentLoop = t;
    this.totalLoops = c;
    this.direction = d < 0 ? -1:1;
}

function BMSegmentStartEvent(n,f,t){
    this.type = n;
    this.firstFrame = f;
    this.totalFrames = t;
}

function BMDestroyEvent(n,t){
    this.type = n;
    this.target = t;
}

var createElementID = (function(){
    var _count = 0;
    return function createID() {
        return '__lottie_element_' + ++_count
    }
}())

function HSVtoRGB(h, s, v) {
    var r, g, b, i, f, p, q, t;
    i = Math.floor(h * 6);
    f = h * 6 - i;
    p = v * (1 - s);
    q = v * (1 - f * s);
    t = v * (1 - (1 - f) * s);
    switch (i % 6) {
        case 0: r = v; g = t; b = p; break;
        case 1: r = q; g = v; b = p; break;
        case 2: r = p; g = v; b = t; break;
        case 3: r = p; g = q; b = v; break;
        case 4: r = t; g = p; b = v; break;
        case 5: r = v; g = p; b = q; break;
    }
    return [ r,
        g,
         b ];
}

function RGBtoHSV(r, g, b) {
    var max = Math.max(r, g, b), min = Math.min(r, g, b),
        d = max - min,
        h,
        s = (max === 0 ? 0 : d / max),
        v = max / 255;

    switch (max) {
        case min: h = 0; break;
        case r: h = (g - b) + d * (g < b ? 6: 0); h /= 6 * d; break;
        case g: h = (b - r) + d * 2; h /= 6 * d; break;
        case b: h = (r - g) + d * 4; h /= 6 * d; break;
    }

    return [
         h,
         s,
         v
    ];
}

function addSaturationToRGB(color,offset){
    var hsv = RGBtoHSV(color[0]*255,color[1]*255,color[2]*255);
    hsv[1] += offset;
    if (hsv[1] > 1) {
        hsv[1] = 1;
    }
    else if (hsv[1] <= 0) {
        hsv[1] = 0;
    }
    return HSVtoRGB(hsv[0],hsv[1],hsv[2]);
}

function addBrightnessToRGB(color,offset){
    var hsv = RGBtoHSV(color[0]*255,color[1]*255,color[2]*255);
    hsv[2] += offset;
    if (hsv[2] > 1) {
        hsv[2] = 1;
    }
    else if (hsv[2] < 0) {
        hsv[2] = 0;
    }
    return HSVtoRGB(hsv[0],hsv[1],hsv[2]);
}

function addHueToRGB(color,offset) {
    var hsv = RGBtoHSV(color[0]*255,color[1]*255,color[2]*255);
    hsv[0] += offset/360;
    if (hsv[0] > 1) {
        hsv[0] -= 1;
    }
    else if (hsv[0] < 0) {
        hsv[0] += 1;
    }
    return HSVtoRGB(hsv[0],hsv[1],hsv[2]);
}

var rgbToHex = (function(){
    var colorMap = [];
    var i;
    var hex;
    for(i=0;i<256;i+=1){
        hex = i.toString(16);
        colorMap[i] = hex.length == 1 ? '0' + hex : hex;
    }

    return function(r, g, b) {
        if(r<0){
            r = 0;
        }
        if(g<0){
            g = 0;
        }
        if(b<0){
            b = 0;
        }
        return '#' + colorMap[r] + colorMap[g] + colorMap[b];
    };
}());