~(function() {
  var EOF = -1;
  var BITS = 12;
  var HSIZE = 5003;
  var masks = [
    0,
    1,
    3,
    7,
    15,
    31,
    63,
    127,
    255,
    511,
    1023,
    2047,
    4095,
    8191,
    16383,
    32767,
    65535
  ];
  var remaining, curPixel, n_bits;
  function LZWEncoder(width, height, pixels, colorDepth) {
    var initCodeSize = Math.max(2, colorDepth);
    var accum = new Uint8Array(256);
    var htab = new Int32Array(HSIZE);
    var codetab = new Int32Array(HSIZE);
    var cur_accum,
      cur_bits = 0;
    var a_count;
    var free_ent = 0;
    var maxcode;
    var clear_flg = false;
    var g_init_bits, ClearCode, EOFCode;
    function char_out(c, outs) {
      accum[a_count++] = c;
      if (a_count >= 254) flush_char(outs);
    }
    function cl_block(outs) {
      cl_hash(HSIZE);
      free_ent = ClearCode + 2;
      clear_flg = true;
      output(ClearCode, outs);
    }
    function cl_hash(hsize) {
      for (var i = 0; i < hsize; ++i) htab[i] = -1;
    }
    function compress(init_bits, outs) {
      var fcode, c, i, ent, disp, hsize_reg, hshift;
      g_init_bits = init_bits;
      clear_flg = false;
      n_bits = g_init_bits;
      maxcode = MAXCODE(n_bits);
      ClearCode = 1 << (init_bits - 1);
      EOFCode = ClearCode + 1;
      free_ent = ClearCode + 2;
      a_count = 0;
      ent = nextPixel();
      hshift = 0;
      for (fcode = HSIZE; fcode < 65536; fcode *= 2) ++hshift;
      hshift = 8 - hshift;
      hsize_reg = HSIZE;
      cl_hash(hsize_reg);
      output(ClearCode, outs);
      outer_loop: while ((c = nextPixel()) != EOF) {
        fcode = (c << BITS) + ent;
        i = (c << hshift) ^ ent;
        if (htab[i] === fcode) {
          ent = codetab[i];
          continue;
        } else if (htab[i] >= 0) {
          disp = hsize_reg - i;
          if (i === 0) disp = 1;
          do {
            if ((i -= disp) < 0) i += hsize_reg;
            if (htab[i] === fcode) {
              ent = codetab[i];
              continue outer_loop;
            }
          } while (htab[i] >= 0);
        }
        output(ent, outs);
        ent = c;
        if (free_ent < 1 << BITS) {
          codetab[i] = free_ent++;
          htab[i] = fcode;
        } else {
          cl_block(outs);
        }
      }
      output(ent, outs);
      output(EOFCode, outs);
    }
    function encode(outs) {
      outs.writeByte(initCodeSize);
      remaining = width * height;
      curPixel = 0;
      compress(initCodeSize + 1, outs);
      outs.writeByte(0);
    }
    function flush_char(outs) {
      if (a_count > 0) {
        outs.writeByte(a_count);
        outs.writeBytes(accum, 0, a_count);
        a_count = 0;
      }
    }
    function MAXCODE(n_bits) {
      return (1 << n_bits) - 1;
    }
    function nextPixel() {
      if (remaining === 0) return EOF;
      --remaining;
      var pix = pixels[curPixel++];
      return pix & 255;
    }
    function output(code, outs) {
      cur_accum &= masks[cur_bits];
      if (cur_bits > 0) cur_accum |= code << cur_bits;
      else cur_accum = code;
      cur_bits += n_bits;
      while (cur_bits >= 8) {
        char_out(cur_accum & 255, outs);
        cur_accum >>= 8;
        cur_bits -= 8;
      }
      if (free_ent > maxcode || clear_flg) {
        if (clear_flg) {
          maxcode = MAXCODE((n_bits = g_init_bits));
          clear_flg = false;
        } else {
          ++n_bits;
          if (n_bits == BITS) maxcode = 1 << BITS;
          else maxcode = MAXCODE(n_bits);
        }
      }
      if (code == EOFCode) {
        while (cur_bits > 0) {
          char_out(cur_accum & 255, outs);
          cur_accum >>= 8;
          cur_bits -= 8;
        }
        flush_char(outs);
      }
    }
    this.encode = encode;
  }
  var ncycles = 100;
  var netsize = 256;
  var maxnetpos = netsize - 1;
  var netbiasshift = 4;
  var intbiasshift = 16;
  var intbias = 1 << intbiasshift;
  var gammashift = 10;
  var gamma = 1 << gammashift;
  var betashift = 10;
  var beta = intbias >> betashift;
  var betagamma = intbias << (gammashift - betashift);
  var initrad = netsize >> 3;
  var radiusbiasshift = 6;
  var radiusbias = 1 << radiusbiasshift;
  var initradius = initrad * radiusbias;
  var radiusdec = 30;
  var alphabiasshift = 10;
  var initalpha = 1 << alphabiasshift;
  var alphadec;
  var radbiasshift = 8;
  var radbias = 1 << radbiasshift;
  var alpharadbshift = alphabiasshift + radbiasshift;
  var alpharadbias = 1 << alpharadbshift;
  var prime1 = 499;
  var prime2 = 491;
  var prime3 = 487;
  var prime4 = 503;
  var minpicturebytes = 3 * prime4;
  function NeuQuant(pixels, samplefac) {
    var network;
    var netindex;
    var bias;
    var freq;
    var radpower;
    function init() {
      network = [];
      netindex = new Int32Array(256);
      bias = new Int32Array(netsize);
      freq = new Int32Array(netsize);
      radpower = new Int32Array(netsize >> 3);
      var i, v;
      for (i = 0; i < netsize; i++) {
        v = (i << (netbiasshift + 8)) / netsize;
        network[i] = new Float64Array([v, v, v, 0]);
        freq[i] = intbias / netsize;
        bias[i] = 0;
      }
    }
    function unbiasnet() {
      for (var i = 0; i < netsize; i++) {
        network[i][0] >>= netbiasshift;
        network[i][1] >>= netbiasshift;
        network[i][2] >>= netbiasshift;
        network[i][3] = i;
      }
    }
    function altersingle(alpha, i, b, g, r) {
      network[i][0] -= (alpha * (network[i][0] - b)) / initalpha;
      network[i][1] -= (alpha * (network[i][1] - g)) / initalpha;
      network[i][2] -= (alpha * (network[i][2] - r)) / initalpha;
    }
    function alterneigh(radius, i, b, g, r) {
      var lo = Math.abs(i - radius);
      var hi = Math.min(i + radius, netsize);
      var j = i + 1;
      var k = i - 1;
      var m = 1;
      var p, a;
      while (j < hi || k > lo) {
        a = radpower[m++];
        if (j < hi) {
          p = network[j++];
          p[0] -= (a * (p[0] - b)) / alpharadbias;
          p[1] -= (a * (p[1] - g)) / alpharadbias;
          p[2] -= (a * (p[2] - r)) / alpharadbias;
        }
        if (k > lo) {
          p = network[k--];
          p[0] -= (a * (p[0] - b)) / alpharadbias;
          p[1] -= (a * (p[1] - g)) / alpharadbias;
          p[2] -= (a * (p[2] - r)) / alpharadbias;
        }
      }
    }
    function contest(b, g, r) {
      var bestd = ~(1 << 31);
      var bestbiasd = bestd;
      var bestpos = -1;
      var bestbiaspos = bestpos;
      var i, n, dist, biasdist, betafreq;
      for (i = 0; i < netsize; i++) {
        n = network[i];
        dist = Math.abs(n[0] - b) + Math.abs(n[1] - g) + Math.abs(n[2] - r);
        if (dist < bestd) {
          bestd = dist;
          bestpos = i;
        }
        biasdist = dist - (bias[i] >> (intbiasshift - netbiasshift));
        if (biasdist < bestbiasd) {
          bestbiasd = biasdist;
          bestbiaspos = i;
        }
        betafreq = freq[i] >> betashift;
        freq[i] -= betafreq;
        bias[i] += betafreq << gammashift;
      }
      freq[bestpos] += beta;
      bias[bestpos] -= betagamma;
      return bestbiaspos;
    }
    function inxbuild() {
      var i,
        j,
        p,
        q,
        smallpos,
        smallval,
        previouscol = 0,
        startpos = 0;
      for (i = 0; i < netsize; i++) {
        p = network[i];
        smallpos = i;
        smallval = p[1];
        for (j = i + 1; j < netsize; j++) {
          q = network[j];
          if (q[1] < smallval) {
            smallpos = j;
            smallval = q[1];
          }
        }
        q = network[smallpos];
        if (i != smallpos) {
          j = q[0];
          q[0] = p[0];
          p[0] = j;
          j = q[1];
          q[1] = p[1];
          p[1] = j;
          j = q[2];
          q[2] = p[2];
          p[2] = j;
          j = q[3];
          q[3] = p[3];
          p[3] = j;
        }
        if (smallval != previouscol) {
          netindex[previouscol] = (startpos + i) >> 1;
          for (j = previouscol + 1; j < smallval; j++) netindex[j] = i;
          previouscol = smallval;
          startpos = i;
        }
      }
      netindex[previouscol] = (startpos + maxnetpos) >> 1;
      for (j = previouscol + 1; j < 256; j++) netindex[j] = maxnetpos;
    }
    function inxsearch(b, g, r) {
      var a, p, dist;
      var bestd = 1e3;
      var best = -1;
      var i = netindex[g];
      var j = i - 1;
      while (i < netsize || j >= 0) {
        if (i < netsize) {
          p = network[i];
          dist = p[1] - g;
          if (dist >= bestd) i = netsize;
          else {
            i++;
            if (dist < 0) dist = -dist;
            a = p[0] - b;
            if (a < 0) a = -a;
            dist += a;
            if (dist < bestd) {
              a = p[2] - r;
              if (a < 0) a = -a;
              dist += a;
              if (dist < bestd) {
                bestd = dist;
                best = p[3];
              }
            }
          }
        }
        if (j >= 0) {
          p = network[j];
          dist = g - p[1];
          if (dist >= bestd) j = -1;
          else {
            j--;
            if (dist < 0) dist = -dist;
            a = p[0] - b;
            if (a < 0) a = -a;
            dist += a;
            if (dist < bestd) {
              a = p[2] - r;
              if (a < 0) a = -a;
              dist += a;
              if (dist < bestd) {
                bestd = dist;
                best = p[3];
              }
            }
          }
        }
      }
      return best;
    }
    function learn() {
      var i;
      var lengthcount = pixels.length;
      var alphadec = 30 + (samplefac - 1) / 3;
      var samplepixels = lengthcount / (3 * samplefac);
      var delta = ~~(samplepixels / ncycles);
      var alpha = initalpha;
      var radius = initradius;
      var rad = radius >> radiusbiasshift;
      if (rad <= 1) rad = 0;
      for (i = 0; i < rad; i++)
        radpower[i] = alpha * (((rad * rad - i * i) * radbias) / (rad * rad));
      var step;
      if (lengthcount < minpicturebytes) {
        samplefac = 1;
        step = 3;
      } else if (lengthcount % prime1 !== 0) {
        step = 3 * prime1;
      } else if (lengthcount % prime2 !== 0) {
        step = 3 * prime2;
      } else if (lengthcount % prime3 !== 0) {
        step = 3 * prime3;
      } else {
        step = 3 * prime4;
      }
      var b, g, r, j;
      var pix = 0;
      i = 0;
      while (i < samplepixels) {
        b = (pixels[pix] & 255) << netbiasshift;
        g = (pixels[pix + 1] & 255) << netbiasshift;
        r = (pixels[pix + 2] & 255) << netbiasshift;
        j = contest(b, g, r);
        altersingle(alpha, j, b, g, r);
        if (rad !== 0) alterneigh(rad, j, b, g, r);
        pix += step;
        if (pix >= lengthcount) pix -= lengthcount;
        i++;
        if (delta === 0) delta = 1;
        if (i % delta === 0) {
          alpha -= alpha / alphadec;
          radius -= radius / radiusdec;
          rad = radius >> radiusbiasshift;
          if (rad <= 1) rad = 0;
          for (j = 0; j < rad; j++)
            radpower[j] =
              alpha * (((rad * rad - j * j) * radbias) / (rad * rad));
        }
      }
    }
    function buildColormap() {
      init();
      learn();
      unbiasnet();
      inxbuild();
    }
    this.buildColormap = buildColormap;
    function getColormap() {
      var map = [];
      var index = [];
      for (var i = 0; i < netsize; i++) index[network[i][3]] = i;
      var k = 0;
      for (var l = 0; l < netsize; l++) {
        var j = index[l];
        map[k++] = network[j][0];
        map[k++] = network[j][1];
        map[k++] = network[j][2];
      }
      return map;
    }
    this.getColormap = getColormap;
    this.lookupRGB = inxsearch;
  }
  var renderFrame;
  renderFrame = function(frame) {
    var encoder, page, stream, transfer;
    encoder = new GIFEncoder(frame.width, frame.height);
    if (frame.index === 0) {
      encoder.writeHeader();
    } else {
      encoder.firstFrame = false;
    }
    encoder.setTransparent(frame.transparent);
    encoder.setRepeat(frame.repeat);
    encoder.setDelay(frame.delay);
    encoder.setQuality(frame.quality);
    encoder.setDither(frame.dither);
    encoder.setGlobalPalette(frame.globalPalette);
    encoder.addFrame(frame.data);
    if (frame.last) {
      encoder.finish();
    }
    if (frame.globalPalette === true) {
      frame.globalPalette = encoder.getGlobalPalette();
    }
    stream = encoder.stream();
    frame.data = stream.pages;
    frame.cursor = stream.cursor;
    frame.pageSize = stream.constructor.pageSize;
    if (frame.canTransfer) {
      transfer = (function() {
        var i, len, ref, results;
        ref = frame.data;
        results = [];
        for (i = 0, len = ref.length; i < len; i++) {
          page = ref[i];
          results.push(page.buffer);
        }
        return results;
      })();
      return self.postMessage(frame, transfer);
    } else {
      return self.postMessage(frame);
    }
  };
  self.onmessage = function(event) {
    return renderFrame(event.data);
  };
  function ByteArray() {
    this.page = -1;
    this.pages = [];
    this.newPage();
  }
  ByteArray.pageSize = 4096;
  ByteArray.charMap = {};
  for (var i = 0; i < 256; i++) ByteArray.charMap[i] = String.fromCharCode(i);
  ByteArray.prototype.newPage = function() {
    this.pages[++this.page] = new Uint8Array(ByteArray.pageSize);
    this.cursor = 0;
  };
  ByteArray.prototype.getData = function() {
    var rv = "";
    for (var p = 0; p < this.pages.length; p++) {
      for (var i = 0; i < ByteArray.pageSize; i++) {
        rv += ByteArray.charMap[this.pages[p][i]];
      }
    }
    return rv;
  };
  ByteArray.prototype.writeByte = function(val) {
    if (this.cursor >= ByteArray.pageSize) this.newPage();
    this.pages[this.page][this.cursor++] = val;
  };
  ByteArray.prototype.writeUTFBytes = function(string) {
    for (var l = string.length, i = 0; i < l; i++)
      this.writeByte(string.charCodeAt(i));
  };
  ByteArray.prototype.writeBytes = function(array, offset, length) {
    for (var l = length || array.length, i = offset || 0; i < l; i++)
      this.writeByte(array[i]);
  };
  function GIFEncoder(width, height) {
    this.width = ~~width;
    this.height = ~~height;
    this.transparent = null;
    this.transIndex = 0;
    this.repeat = -1;
    this.delay = 0;
    this.image = null;
    this.pixels = null;
    this.indexedPixels = null;
    this.colorDepth = null;
    this.colorTab = null;
    this.neuQuant = null;
    this.usedEntry = new Array();
    this.palSize = 7;
    this.dispose = -1;
    this.firstFrame = true;
    this.sample = 10;
    this.dither = false;
    this.globalPalette = false;
    this.out = new ByteArray();
  }
  GIFEncoder.prototype.setDelay = function(milliseconds) {
    this.delay = Math.round(milliseconds / 10);
  };
  GIFEncoder.prototype.setFrameRate = function(fps) {
    this.delay = Math.round(100 / fps);
  };
  GIFEncoder.prototype.setDispose = function(disposalCode) {
    if (disposalCode >= 0) this.dispose = disposalCode;
  };
  GIFEncoder.prototype.setRepeat = function(repeat) {
    this.repeat = repeat;
  };
  GIFEncoder.prototype.setTransparent = function(color) {
    this.transparent = color;
  };
  GIFEncoder.prototype.addFrame = function(imageData) {
    this.image = imageData;
    this.colorTab =
      this.globalPalette && this.globalPalette.slice
        ? this.globalPalette
        : null;
    this.getImagePixels();
    this.analyzePixels();
    if (this.globalPalette === true) this.globalPalette = this.colorTab;
    if (this.firstFrame) {
      this.writeLSD();
      this.writePalette();
      if (this.repeat >= 0) {
        this.writeNetscapeExt();
      }
    }
    this.writeGraphicCtrlExt();
    this.writeImageDesc();
    if (!this.firstFrame && !this.globalPalette) this.writePalette();
    this.writePixels();
    this.firstFrame = false;
  };
  GIFEncoder.prototype.finish = function() {
    this.out.writeByte(59);
  };
  GIFEncoder.prototype.setQuality = function(quality) {
    if (quality < 1) quality = 1;
    this.sample = quality;
  };
  GIFEncoder.prototype.setDither = function(dither) {
    if (dither === true) dither = "FloydSteinberg";
    this.dither = dither;
  };
  GIFEncoder.prototype.setGlobalPalette = function(palette) {
    this.globalPalette = palette;
  };
  GIFEncoder.prototype.getGlobalPalette = function() {
    return (
      (this.globalPalette &&
        this.globalPalette.slice &&
        this.globalPalette.slice(0)) ||
      this.globalPalette
    );
  };
  GIFEncoder.prototype.writeHeader = function() {
    this.out.writeUTFBytes("GIF89a");
  };
  GIFEncoder.prototype.analyzePixels = function() {
    if (!this.colorTab) {
      this.neuQuant = new NeuQuant(this.pixels, this.sample);
      this.neuQuant.buildColormap();
      this.colorTab = this.neuQuant.getColormap();
    }
    if (this.dither) {
      this.ditherPixels(
        this.dither.replace("-serpentine", ""),
        this.dither.match(/-serpentine/) !== null
      );
    } else {
      this.indexPixels();
    }
    this.pixels = null;
    this.colorDepth = 8;
    this.palSize = 7;
    if (this.transparent !== null) {
      this.transIndex = this.findClosest(this.transparent, true);
    }
  };
  GIFEncoder.prototype.indexPixels = function(imgq) {
    var nPix = this.pixels.length / 3;
    this.indexedPixels = new Uint8Array(nPix);
    var k = 0;
    for (var j = 0; j < nPix; j++) {
      var index = this.findClosestRGB(
        this.pixels[k++] & 255,
        this.pixels[k++] & 255,
        this.pixels[k++] & 255
      );
      this.usedEntry[index] = true;
      this.indexedPixels[j] = index;
    }
  };
  GIFEncoder.prototype.ditherPixels = function(kernel, serpentine) {
    var kernels = {
      FalseFloydSteinberg: [[3 / 8, 1, 0], [3 / 8, 0, 1], [2 / 8, 1, 1]],
      FloydSteinberg: [
        [7 / 16, 1, 0],
        [3 / 16, -1, 1],
        [5 / 16, 0, 1],
        [1 / 16, 1, 1]
      ],
      Stucki: [
        [8 / 42, 1, 0],
        [4 / 42, 2, 0],
        [2 / 42, -2, 1],
        [4 / 42, -1, 1],
        [8 / 42, 0, 1],
        [4 / 42, 1, 1],
        [2 / 42, 2, 1],
        [1 / 42, -2, 2],
        [2 / 42, -1, 2],
        [4 / 42, 0, 2],
        [2 / 42, 1, 2],
        [1 / 42, 2, 2]
      ],
      Atkinson: [
        [1 / 8, 1, 0],
        [1 / 8, 2, 0],
        [1 / 8, -1, 1],
        [1 / 8, 0, 1],
        [1 / 8, 1, 1],
        [1 / 8, 0, 2]
      ]
    };
    if (!kernel || !kernels[kernel]) {
      throw "Unknown dithering kernel: " + kernel;
    }
    var ds = kernels[kernel];
    var index = 0,
      height = this.height,
      width = this.width,
      data = this.pixels;
    var direction = serpentine ? -1 : 1;
    this.indexedPixels = new Uint8Array(this.pixels.length / 3);
    for (var y = 0; y < height; y++) {
      if (serpentine) direction = direction * -1;
      for (
        var x = direction == 1 ? 0 : width - 1,
          xend = direction == 1 ? width : 0;
        x !== xend;
        x += direction
      ) {
        index = y * width + x;
        var idx = index * 3;
        var r1 = data[idx];
        var g1 = data[idx + 1];
        var b1 = data[idx + 2];
        idx = this.findClosestRGB(r1, g1, b1);
        this.usedEntry[idx] = true;
        this.indexedPixels[index] = idx;
        idx *= 3;
        var r2 = this.colorTab[idx];
        var g2 = this.colorTab[idx + 1];
        var b2 = this.colorTab[idx + 2];
        var er = r1 - r2;
        var eg = g1 - g2;
        var eb = b1 - b2;
        for (
          var i = direction == 1 ? 0 : ds.length - 1,
            end = direction == 1 ? ds.length : 0;
          i !== end;
          i += direction
        ) {
          var x1 = ds[i][1];
          var y1 = ds[i][2];
          if (x1 + x >= 0 && x1 + x < width && y1 + y >= 0 && y1 + y < height) {
            var d = ds[i][0];
            idx = index + x1 + y1 * width;
            idx *= 3;
            data[idx] = Math.max(0, Math.min(255, data[idx] + er * d));
            data[idx + 1] = Math.max(0, Math.min(255, data[idx + 1] + eg * d));
            data[idx + 2] = Math.max(0, Math.min(255, data[idx + 2] + eb * d));
          }
        }
      }
    }
  };
  GIFEncoder.prototype.findClosest = function(c, used) {
    return this.findClosestRGB(
      (c & 16711680) >> 16,
      (c & 65280) >> 8,
      c & 255,
      used
    );
  };
  GIFEncoder.prototype.findClosestRGB = function(r, g, b, used) {
    if (this.colorTab === null) return -1;
    if (this.neuQuant && !used) {
      return this.neuQuant.lookupRGB(r, g, b);
    }
    var c = b | (g << 8) | (r << 16);
    var minpos = 0;
    var dmin = 256 * 256 * 256;
    var len = this.colorTab.length;
    for (var i = 0, index = 0; i < len; index++) {
      var dr = r - (this.colorTab[i++] & 255);
      var dg = g - (this.colorTab[i++] & 255);
      var db = b - (this.colorTab[i++] & 255);
      var d = dr * dr + dg * dg + db * db;
      if ((!used || this.usedEntry[index]) && d < dmin) {
        dmin = d;
        minpos = index;
      }
    }
    return minpos;
  };
  GIFEncoder.prototype.getImagePixels = function() {
    var w = this.width;
    var h = this.height;
    this.pixels = new Uint8Array(w * h * 3);
    var data = this.image;
    var srcPos = 0;
    var count = 0;
    for (var i = 0; i < h; i++) {
      for (var j = 0; j < w; j++) {
        this.pixels[count++] = data[srcPos++];
        this.pixels[count++] = data[srcPos++];
        this.pixels[count++] = data[srcPos++];
        srcPos++;
      }
    }
  };
  GIFEncoder.prototype.writeGraphicCtrlExt = function() {
    this.out.writeByte(33);
    this.out.writeByte(249);
    this.out.writeByte(4);
    var transp, disp;
    if (this.transparent === null) {
      transp = 0;
      disp = 0;
    } else {
      transp = 1;
      disp = 2;
    }
    if (this.dispose >= 0) {
      disp = dispose & 7;
    }
    disp <<= 2;
    this.out.writeByte(0 | disp | 0 | transp);
    this.writeShort(this.delay);
    this.out.writeByte(this.transIndex);
    this.out.writeByte(0);
  };
  GIFEncoder.prototype.writeImageDesc = function() {
    this.out.writeByte(44);
    this.writeShort(0);
    this.writeShort(0);
    this.writeShort(this.width);
    this.writeShort(this.height);
    if (this.firstFrame || this.globalPalette) {
      this.out.writeByte(0);
    } else {
      this.out.writeByte(128 | 0 | 0 | 0 | this.palSize);
    }
  };
  GIFEncoder.prototype.writeLSD = function() {
    this.writeShort(this.width);
    this.writeShort(this.height);
    this.out.writeByte(128 | 112 | 0 | this.palSize);
    this.out.writeByte(0);
    this.out.writeByte(0);
  };
  GIFEncoder.prototype.writeNetscapeExt = function() {
    this.out.writeByte(33);
    this.out.writeByte(255);
    this.out.writeByte(11);
    this.out.writeUTFBytes("NETSCAPE2.0");
    this.out.writeByte(3);
    this.out.writeByte(1);
    this.writeShort(this.repeat);
    this.out.writeByte(0);
  };
  GIFEncoder.prototype.writePalette = function() {
    this.out.writeBytes(this.colorTab);
    var n = 3 * 256 - this.colorTab.length;
    for (var i = 0; i < n; i++) this.out.writeByte(0);
  };
  GIFEncoder.prototype.writeShort = function(pValue) {
    this.out.writeByte(pValue & 255);
    this.out.writeByte((pValue >> 8) & 255);
  };
  GIFEncoder.prototype.writePixels = function() {
    var enc = new LZWEncoder(
      this.width,
      this.height,
      this.indexedPixels,
      this.colorDepth
    );
    enc.encode(this.out);
  };
  GIFEncoder.prototype.stream = function() {
    return this.out;
  };
})();