zhangjy
/
FKJ-HHArome


			
				
					
						
						
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467
							
<!doctype html>
<html lang="en">

<head>
    <title>Code coverage report for packer.js</title>
    <meta charset="utf-8" />
    <link rel="stylesheet" href="prettify.css" />
    <link rel="stylesheet" href="base.css" />
    <link rel="shortcut icon" type="image/x-icon" href="favicon.png" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <style type='text/css'>
        .coverage-summary .sorter {
            background-image: url(sort-arrow-sprite.png);
        }
    </style>
</head>
    
<body>
<div class='wrapper'>
    <div class='pad1'>
        <h1><a href="index.html">All files</a> packer.js</h1>
        <div class='clearfix'>
            
            <div class='fl pad1y space-right2'>
                <span class="strong">94.74% </span>
                <span class="quiet">Statements</span>
                <span class='fraction'>54/57</span>
            </div>
        
            
            <div class='fl pad1y space-right2'>
                <span class="strong">67.86% </span>
                <span class="quiet">Branches</span>
                <span class='fraction'>19/28</span>
            </div>
        
            
            <div class='fl pad1y space-right2'>
                <span class="strong">100% </span>
                <span class="quiet">Functions</span>
                <span class='fraction'>9/9</span>
            </div>
        
            
            <div class='fl pad1y space-right2'>
                <span class="strong">94.74% </span>
                <span class="quiet">Lines</span>
                <span class='fraction'>54/57</span>
            </div>
        
            
        </div>
        <p class="quiet">
            Press <em>n</em> or <em>j</em> to go to the next uncovered block, <em>b</em>, <em>p</em> or <em>k</em> for the previous block.
        </p>
    </div>
    <div class='status-line high'></div>
    <pre><table class="coverage">
<tr><td class="line-count quiet"><a name='L1'></a><a href='#L1'>1</a>
<a name='L2'></a><a href='#L2'>2</a>
<a name='L3'></a><a href='#L3'>3</a>
<a name='L4'></a><a href='#L4'>4</a>
<a name='L5'></a><a href='#L5'>5</a>
<a name='L6'></a><a href='#L6'>6</a>
<a name='L7'></a><a href='#L7'>7</a>
<a name='L8'></a><a href='#L8'>8</a>
<a name='L9'></a><a href='#L9'>9</a>
<a name='L10'></a><a href='#L10'>10</a>
<a name='L11'></a><a href='#L11'>11</a>
<a name='L12'></a><a href='#L12'>12</a>
<a name='L13'></a><a href='#L13'>13</a>
<a name='L14'></a><a href='#L14'>14</a>
<a name='L15'></a><a href='#L15'>15</a>
<a name='L16'></a><a href='#L16'>16</a>
<a name='L17'></a><a href='#L17'>17</a>
<a name='L18'></a><a href='#L18'>18</a>
<a name='L19'></a><a href='#L19'>19</a>
<a name='L20'></a><a href='#L20'>20</a>
<a name='L21'></a><a href='#L21'>21</a>
<a name='L22'></a><a href='#L22'>22</a>
<a name='L23'></a><a href='#L23'>23</a>
<a name='L24'></a><a href='#L24'>24</a>
<a name='L25'></a><a href='#L25'>25</a>
<a name='L26'></a><a href='#L26'>26</a>
<a name='L27'></a><a href='#L27'>27</a>
<a name='L28'></a><a href='#L28'>28</a>
<a name='L29'></a><a href='#L29'>29</a>
<a name='L30'></a><a href='#L30'>30</a>
<a name='L31'></a><a href='#L31'>31</a>
<a name='L32'></a><a href='#L32'>32</a>
<a name='L33'></a><a href='#L33'>33</a>
<a name='L34'></a><a href='#L34'>34</a>
<a name='L35'></a><a href='#L35'>35</a>
<a name='L36'></a><a href='#L36'>36</a>
<a name='L37'></a><a href='#L37'>37</a>
<a name='L38'></a><a href='#L38'>38</a>
<a name='L39'></a><a href='#L39'>39</a>
<a name='L40'></a><a href='#L40'>40</a>
<a name='L41'></a><a href='#L41'>41</a>
<a name='L42'></a><a href='#L42'>42</a>
<a name='L43'></a><a href='#L43'>43</a>
<a name='L44'></a><a href='#L44'>44</a>
<a name='L45'></a><a href='#L45'>45</a>
<a name='L46'></a><a href='#L46'>46</a>
<a name='L47'></a><a href='#L47'>47</a>
<a name='L48'></a><a href='#L48'>48</a>
<a name='L49'></a><a href='#L49'>49</a>
<a name='L50'></a><a href='#L50'>50</a>
<a name='L51'></a><a href='#L51'>51</a>
<a name='L52'></a><a href='#L52'>52</a>
<a name='L53'></a><a href='#L53'>53</a>
<a name='L54'></a><a href='#L54'>54</a>
<a name='L55'></a><a href='#L55'>55</a>
<a name='L56'></a><a href='#L56'>56</a>
<a name='L57'></a><a href='#L57'>57</a>
<a name='L58'></a><a href='#L58'>58</a>
<a name='L59'></a><a href='#L59'>59</a>
<a name='L60'></a><a href='#L60'>60</a>
<a name='L61'></a><a href='#L61'>61</a>
<a name='L62'></a><a href='#L62'>62</a>
<a name='L63'></a><a href='#L63'>63</a>
<a name='L64'></a><a href='#L64'>64</a>
<a name='L65'></a><a href='#L65'>65</a>
<a name='L66'></a><a href='#L66'>66</a>
<a name='L67'></a><a href='#L67'>67</a>
<a name='L68'></a><a href='#L68'>68</a>
<a name='L69'></a><a href='#L69'>69</a>
<a name='L70'></a><a href='#L70'>70</a>
<a name='L71'></a><a href='#L71'>71</a>
<a name='L72'></a><a href='#L72'>72</a>
<a name='L73'></a><a href='#L73'>73</a>
<a name='L74'></a><a href='#L74'>74</a>
<a name='L75'></a><a href='#L75'>75</a>
<a name='L76'></a><a href='#L76'>76</a>
<a name='L77'></a><a href='#L77'>77</a>
<a name='L78'></a><a href='#L78'>78</a>
<a name='L79'></a><a href='#L79'>79</a>
<a name='L80'></a><a href='#L80'>80</a>
<a name='L81'></a><a href='#L81'>81</a>
<a name='L82'></a><a href='#L82'>82</a>
<a name='L83'></a><a href='#L83'>83</a>
<a name='L84'></a><a href='#L84'>84</a>
<a name='L85'></a><a href='#L85'>85</a>
<a name='L86'></a><a href='#L86'>86</a>
<a name='L87'></a><a href='#L87'>87</a>
<a name='L88'></a><a href='#L88'>88</a>
<a name='L89'></a><a href='#L89'>89</a>
<a name='L90'></a><a href='#L90'>90</a>
<a name='L91'></a><a href='#L91'>91</a>
<a name='L92'></a><a href='#L92'>92</a>
<a name='L93'></a><a href='#L93'>93</a>
<a name='L94'></a><a href='#L94'>94</a>
<a name='L95'></a><a href='#L95'>95</a>
<a name='L96'></a><a href='#L96'>96</a>
<a name='L97'></a><a href='#L97'>97</a>
<a name='L98'></a><a href='#L98'>98</a>
<a name='L99'></a><a href='#L99'>99</a>
<a name='L100'></a><a href='#L100'>100</a>
<a name='L101'></a><a href='#L101'>101</a>
<a name='L102'></a><a href='#L102'>102</a>
<a name='L103'></a><a href='#L103'>103</a>
<a name='L104'></a><a href='#L104'>104</a>
<a name='L105'></a><a href='#L105'>105</a>
<a name='L106'></a><a href='#L106'>106</a>
<a name='L107'></a><a href='#L107'>107</a>
<a name='L108'></a><a href='#L108'>108</a>
<a name='L109'></a><a href='#L109'>109</a>
<a name='L110'></a><a href='#L110'>110</a>
<a name='L111'></a><a href='#L111'>111</a>
<a name='L112'></a><a href='#L112'>112</a>
<a name='L113'></a><a href='#L113'>113</a>
<a name='L114'></a><a href='#L114'>114</a>
<a name='L115'></a><a href='#L115'>115</a>
<a name='L116'></a><a href='#L116'>116</a>
<a name='L117'></a><a href='#L117'>117</a>
<a name='L118'></a><a href='#L118'>118</a>
<a name='L119'></a><a href='#L119'>119</a>
<a name='L120'></a><a href='#L120'>120</a>
<a name='L121'></a><a href='#L121'>121</a>
<a name='L122'></a><a href='#L122'>122</a>
<a name='L123'></a><a href='#L123'>123</a>
<a name='L124'></a><a href='#L124'>124</a>
<a name='L125'></a><a href='#L125'>125</a>
<a name='L126'></a><a href='#L126'>126</a>
<a name='L127'></a><a href='#L127'>127</a>
<a name='L128'></a><a href='#L128'>128</a>
<a name='L129'></a><a href='#L129'>129</a>
<a name='L130'></a><a href='#L130'>130</a></td><td class="line-coverage quiet"><span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1x</span>
<span class="cline-any cline-yes">1x</span>
<span class="cline-any cline-yes">1x</span>
<span class="cline-any cline-yes">1x</span>
<span class="cline-any cline-yes">1x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1x</span>
<span class="cline-any cline-yes">353x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">353x</span>
<span class="cline-any cline-yes">353x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">353x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">353x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">353x</span>
<span class="cline-any cline-yes">353x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">353x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">353x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">353x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-no">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">353x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-no">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">353x</span>
<span class="cline-any cline-no">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1x</span>
<span class="cline-any cline-yes">353x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1x</span>
<span class="cline-any cline-yes">353x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">325x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">325x</span>
<span class="cline-any cline-yes">325x</span>
<span class="cline-any cline-yes">325x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1x</span>
<span class="cline-any cline-yes">1592x</span>
<span class="cline-any cline-yes">1592x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1592x</span>
<span class="cline-any cline-yes">1592x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1592x</span>
<span class="cline-any cline-yes">1267x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1592x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1592x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1x</span>
<span class="cline-any cline-yes">290x</span>
<span class="cline-any cline-yes">290x</span>
<span class="cline-any cline-yes">290x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1x</span>
<span class="cline-any cline-yes">325x</span>
<span class="cline-any cline-yes">325x</span>
<span class="cline-any cline-yes">325x</span>
<span class="cline-any cline-yes">325x</span>
<span class="cline-any cline-yes">325x</span>
<span class="cline-any cline-yes">325x</span>
<span class="cline-any cline-yes">325x</span>
<span class="cline-any cline-yes">325x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">325x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1x</span>
<span class="cline-any cline-yes">652x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1x</span>
<span class="cline-any cline-yes">325x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">"use strict";
&nbsp;
let constants = require("./constants");
let CrcStream = require("./crc");
let bitPacker = require("./bitpacker");
let filter = require("./filter-pack");
let zlib = require("zlib");
&nbsp;
let Packer = (module.exports = function (options) {
  this._options = options;
&nbsp;
  options.deflateChunkSize = options.deflateChunkSize || 32 * 1024;
  options.deflateLevel =
    options.deflateLevel != null ? <span class="branch-0 cbranch-no" title="branch not covered" >options.deflateLevel </span>: 9;
  options.deflateStrategy =
    options.deflateStrategy != null ? <span class="branch-0 cbranch-no" title="branch not covered" >options.deflateStrategy </span>: 3;
  options.inputHasAlpha =
    options.inputHasAlpha != null ? <span class="branch-0 cbranch-no" title="branch not covered" >options.inputHasAlpha </span>: true;
  options.deflateFactory = options.deflateFactory || zlib.createDeflate;
  options.bitDepth = options.bitDepth || 8;
  // This is outputColorType
  options.colorType =
    typeof options.colorType === "number"
      ? <span class="branch-0 cbranch-no" title="branch not covered" >options.colorType</span>
      : constants.COLORTYPE_COLOR_ALPHA;
  options.inputColorType =
    typeof options.inputColorType === "number"
      ? <span class="branch-0 cbranch-no" title="branch not covered" >options.inputColorType</span>
      : constants.COLORTYPE_COLOR_ALPHA;
&nbsp;
  <span class="missing-if-branch" title="if path not taken" >I</span>if (
    [
      constants.COLORTYPE_GRAYSCALE,
      constants.COLORTYPE_COLOR,
      constants.COLORTYPE_COLOR_ALPHA,
      constants.COLORTYPE_ALPHA,
    ].indexOf(options.colorType) === -1
  ) {
<span class="cstat-no" title="statement not covered" >    throw new Error(</span>
      "option color type:" + options.colorType + " is not supported at present"
    );
  }
  <span class="missing-if-branch" title="if path not taken" >I</span>if (
    [
      constants.COLORTYPE_GRAYSCALE,
      constants.COLORTYPE_COLOR,
      constants.COLORTYPE_COLOR_ALPHA,
      constants.COLORTYPE_ALPHA,
    ].indexOf(options.inputColorType) === -1
  ) {
<span class="cstat-no" title="statement not covered" >    throw new Error(</span>
      "option input color type:" +
        options.inputColorType +
        " is not supported at present"
    );
  }
  <span class="missing-if-branch" title="if path not taken" >I</span>if (options.bitDepth !== 8 &amp;&amp; <span class="branch-1 cbranch-no" title="branch not covered" >options.bitDepth !== 16)</span> {
<span class="cstat-no" title="statement not covered" >    throw new Error(</span>
      "option bit depth:" + options.bitDepth + " is not supported at present"
    );
  }
});
&nbsp;
Packer.prototype.getDeflateOptions = function () {
  return {
    chunkSize: this._options.deflateChunkSize,
    level: this._options.deflateLevel,
    strategy: this._options.deflateStrategy,
  };
};
&nbsp;
Packer.prototype.createDeflate = function () {
  return this._options.deflateFactory(this.getDeflateOptions());
};
&nbsp;
Packer.prototype.filterData = function (data, width, height) {
  // convert to correct format for filtering (e.g. right bpp and bit depth)
  let packedData = bitPacker(data, width, height, this._options);
&nbsp;
  // filter pixel data
  let bpp = constants.COLORTYPE_TO_BPP_MAP[this._options.colorType];
  let filteredData = filter(packedData, width, height, this._options, bpp);
  return filteredData;
};
&nbsp;
Packer.prototype._packChunk = function (type, data) {
  let len = data ? data.length : 0;
  let buf = Buffer.alloc(len + 12);
&nbsp;
  buf.writeUInt32BE(len, 0);
  buf.writeUInt32BE(type, 4);
&nbsp;
  if (data) {
    data.copy(buf, 8);
  }
&nbsp;
  buf.writeInt32BE(
    CrcStream.crc32(buf.slice(4, buf.length - 4)),
    buf.length - 4
  );
  return buf;
};
&nbsp;
Packer.prototype.packGAMA = function (gamma) {
  let buf = Buffer.alloc(4);
  buf.writeUInt32BE(Math.floor(gamma * constants.GAMMA_DIVISION), 0);
  return this._packChunk(constants.TYPE_gAMA, buf);
};
&nbsp;
Packer.prototype.packIHDR = function (width, height) {
  let buf = Buffer.alloc(13);
  buf.writeUInt32BE(width, 0);
  buf.writeUInt32BE(height, 4);
  buf[8] = this._options.bitDepth; // Bit depth
  buf[9] = this._options.colorType; // colorType
  buf[10] = 0; // compression
  buf[11] = 0; // filter
  buf[12] = 0; // interlace
&nbsp;
  return this._packChunk(constants.TYPE_IHDR, buf);
};
&nbsp;
Packer.prototype.packIDAT = function (data) {
  return this._packChunk(constants.TYPE_IDAT, data);
};
&nbsp;
Packer.prototype.packIEND = function () {
  return this._packChunk(constants.TYPE_IEND, null);
};
&nbsp;</pre></td></tr></table></pre>

                <div class='push'></div><!-- for sticky footer -->
            </div><!-- /wrapper -->
            <div class='footer quiet pad2 space-top1 center small'>
                Code coverage generated by
                <a href="https://istanbul.js.org/" target="_blank">istanbul</a>
                at Fri Apr 10 2020 13:53:16 GMT+0200 (Central European Summer Time)
            </div>
        </div>
        <script src="prettify.js"></script>
        <script>
            window.onload = function () {
                prettyPrint();
            };
        </script>
        <script src="sorter.js"></script>
        <script src="block-navigation.js"></script>
    </body>
</html>