tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

imagebitmap_bug1239752.js (2593B)

      1 var RGBAValues = [
      2  [42, 142, 23, 148],
      3  [234, 165, 177, 91],
      4  [74, 228, 75, 195],
      5  [140, 108, 73, 65],
      6  [25, 177, 3, 201],
      7  [127, 104, 12, 199],
      8  [196, 93, 240, 131],
      9  [250, 121, 231, 189],
     10  [175, 131, 215, 190],
     11  [145, 122, 166, 70],
     12  [18, 196, 210, 162],
     13  [225, 1, 90, 188],
     14  [223, 216, 182, 233],
     15  [115, 48, 168, 56],
     16  [50, 206, 198, 199],
     17  [152, 28, 70, 130],
     18  [176, 134, 133, 51],
     19  [148, 46, 43, 144],
     20  [78, 171, 141, 95],
     21  [24, 177, 102, 110],
     22  [0, 27, 127, 91],
     23  [31, 221, 41, 170],
     24  [85, 7, 218, 146],
     25  [65, 30, 198, 238],
     26  [121, 56, 123, 88],
     27  [246, 39, 140, 146],
     28  [174, 195, 254, 149],
     29  [29, 153, 92, 116],
     30  [17, 240, 5, 111],
     31  [38, 162, 84, 143],
     32  [237, 159, 201, 244],
     33  [93, 68, 14, 246],
     34  [143, 142, 82, 221],
     35  [187, 215, 243, 154],
     36  [24, 121, 220, 53],
     37  [80, 153, 151, 219],
     38  [202, 241, 250, 191],
     39 ];
     40 
     41 function createOneTest(rgbaValue) {
     42  return new Promise(function (resolve, reject) {
     43    var tolerance = 5;
     44    var r = rgbaValue[0];
     45    var g = rgbaValue[1];
     46    var b = rgbaValue[2];
     47    var a = rgbaValue[3];
     48    var imageData = new ImageData(new Uint8ClampedArray([r, g, b, a]), 1, 1);
     49 
     50    var newImageData;
     51    createImageBitmap(imageData).then(
     52      function (imageBitmap) {
     53        var context = document.createElement("canvas").getContext("2d");
     54        context.drawImage(imageBitmap, 0, 0);
     55        newImageData = context.getImageData(0, 0, 1, 1);
     56        var newR = newImageData.data[0];
     57        var newG = newImageData.data[1];
     58        var newB = newImageData.data[2];
     59        var newA = newImageData.data[3];
     60        var isTheSame =
     61          Math.abs(r - newR) <= tolerance &&
     62          Math.abs(g - newG) <= tolerance &&
     63          Math.abs(b - newB) <= tolerance &&
     64          Math.abs(a - newA) <= tolerance;
     65        ok(
     66          isTheSame,
     67          "newImageData(" +
     68            newR +
     69            "," +
     70            newG +
     71            "," +
     72            newB +
     73            "," +
     74            newA +
     75            ") should equal to imageData(" +
     76            r +
     77            "," +
     78            g +
     79            "," +
     80            b +
     81            "," +
     82            a +
     83            ")." +
     84            "Premultiplied Alpha is handled while creating ImageBitmap from ImageData."
     85        );
     86        if (isTheSame) {
     87          resolve();
     88        } else {
     89          reject();
     90        }
     91      },
     92      function () {
     93        reject();
     94      }
     95    );
     96  });
     97 }
     98 
     99 function testBug1239752() {
    100  var tests = [];
    101  for (var i = 0; i < RGBAValues.length; ++i) {
    102    tests.push(createOneTest(RGBAValues[i]));
    103  }
    104 
    105  return Promise.all(tests);
    106 }