MNIST p5.js experiment

.block

license: mit

.purview_helper.js

// helper functions below for supporting blocks/purview

function saveBlocksImages(doZoom) {
  if(doZoom == null) {
    doZoom = false;
  }

  // generate 960x500 preview.jpg of entire canvas
  // TODO: should this be recycled?
  var offscreenCanvas = document.createElement('canvas');
  offscreenCanvas.width = 960;
  offscreenCanvas.height = 500;
  var context = offscreenCanvas.getContext('2d');
  // background is flat white
  context.fillStyle="#FFFFFF";
  context.fillRect(0, 0, 960, 500);
  context.drawImage(this.canvas, 0, 0, 960, 500);
  // save to browser
  var downloadMime = 'image/octet-stream';
  var imageData = offscreenCanvas.toDataURL('image/jpeg');
  imageData = imageData.replace('image/jpeg', downloadMime);
  p5.prototype.downloadFile(imageData, 'preview.jpg', 'jpg');

  // generate 230x120 thumbnail.png centered on mouse
  offscreenCanvas.width = 230;
  offscreenCanvas.height = 120;

  // background is flat white  
  context = offscreenCanvas.getContext('2d');
  context.fillStyle="#FFFFFF";
  context.fillRect(0, 0, 230, 120);

  if(doZoom) {
    // pixelDensity does the right thing on retina displays
    var pd = this._pixelDensity;
    var sx = pd * mouseX - pd * 230/2;
    var sy = pd * mouseY - pd * 120/2;
    var sw = pd * 230;
    var sh = pd * 120;
    // bounds checking - just displace if necessary
    if (sx < 0) {
      sx = 0;
    }
    if (sx > this.canvas.width - sw) {
      sx = this.canvas.width - sw;
    }
    if (sy < 0) {
      sy = 0;
    }
    if (sy > this.canvas.height - sh) {
      sy = this.canvas.height - sh;
    }
    // save to browser
    context.drawImage(this.canvas, sx, sy, sw, sh, 0, 0, 230, 120);
  }
  else {
    // now scaledown
    var full_width = this.canvas.width;
    var full_height = this.canvas.height;
    context.drawImage(this.canvas, 0, 0, full_width, full_height, 0, 0, 230, 120);
  }
  imageData = offscreenCanvas.toDataURL('image/png');
  imageData = imageData.replace('image/png', downloadMime);
  p5.prototype.downloadFile(imageData, 'thumbnail.png', 'png');
}

README.md

p5.js MNIST Experiment

Experiment with MNIST VAE + keras.js + p5.js

asketch.js

var MODEL_LOADING = 0;
var MODEL_READY = 1;
var MODEL_LOAD_ERROR = 2;
var MODEL_WORKING = 3;
var modelStatus = MODEL_LOADING;
var modelStatusColors = [[200, 200, 0], [32, 128, 32], [200, 0, 0], [32, 32, 255]];
var modelOutput = null;
var imgMask = null;
var curModelImage = null;
var running = false;

// we start with some probes. probeQueue = null when done
var probeQueue = [];
var probeCoords = null;

// http://stackoverflow.com/a/8843728/1010653
function norm_ppf(p) {
    var a1 = -39.6968302866538, a2 = 220.946098424521, a3 = -275.928510446969;
    var a4 = 138.357751867269, a5 = -30.6647980661472, a6 = 2.50662827745924;
    var b1 = -54.4760987982241, b2 = 161.585836858041, b3 = -155.698979859887;
    var b4 = 66.8013118877197, b5 = -13.2806815528857, c1 = -7.78489400243029E-03;
    var c2 = -0.322396458041136, c3 = -2.40075827716184, c4 = -2.54973253934373;
    var c5 = 4.37466414146497, c6 = 2.93816398269878, d1 = 7.78469570904146E-03;
    var d2 = 0.32246712907004, d3 = 2.445134137143, d4 = 3.75440866190742;
    var p_low = 0.02425, p_high = 1 - p_low;
    var q, r;
    var retVal;

    if ((p < 0) || (p > 1))
    {
        alert("NormSInv: Argument out of range.");
        retVal = 0;
    }
    else if (p < p_low)
    {
        q = Math.sqrt(-2 * Math.log(p));
        retVal = (((((c1 * q + c2) * q + c3) * q + c4) * q + c5) * q + c6) / ((((d1 * q + d2) * q + d3) * q + d4) * q + 1);
    }
    else if (p <= p_high)
    {
        q = p - 0.5;
        r = q * q;
        retVal = (((((a1 * r + a2) * r + a3) * r + a4) * r + a5) * r + a6) * q / (((((b1 * r + b2) * r + b3) * r + b4) * r + b5) * r + 1);
    }
    else
    {
        q = Math.sqrt(-2 * Math.log(1 - p));
        retVal = -(((((c1 * q + c2) * q + c3) * q + c4) * q + c5) * q + c6) / ((((d1 * q + d2) * q + d3) * q + d4) * q + 1);
    }

    return retVal;
}

// in browser, URLs can be relative or absolute
const model = new KerasJS.Model({
  filepaths: {
    model: 'mnist_03_decoder.json',
    weights: 'mnist_03_decoder_weights_weights.buf',
    metadata: 'mnist_03_decoder_weights_metadata.json'
  },
  gpu: true
})

var origImgMask;
function preload() {
  origImgMask = loadImage("mask56.png");
}

function setup () {
  imgMask = createImage(56, 56);
  imgMask.loadPixels();
  origImgMask.loadPixels();
  // print(imgMask.pixels.length + " and " + origImgMask.pixels.length)
  for (var i = 3; i < imgMask.pixels.length; i+=4) {
    imgMask.pixels[i] = 255-origImgMask.pixels[i];
  }
  imgMask.updatePixels();

  createCanvas(960, 500);
  background(32);
  curModelImage = createImage(56, 56);
  model.ready()
    .then(() => {
      // print("Model says it is ready")
      modelStatus = MODEL_READY;
      // redraw();
    })
    .catch(err => {
      // handle error
      modelStatus = MODEL_LOAD_ERROR;
      // redraw();
    })
  probeQueue.push([(0+0.5)*width/10, (0+0.5)*height/5]);
  for(var i=0;i<10;i++) {
    for(var j=0;j<5;j++) {
      probeQueue.push([(i+0.5)*width/10, (j+0.5)*height/5]);
    }
  }
}

function mouseMoved() {
  if(running) {
    redraw();
  }
}

function mouseDragged() {
  if(running) {
    probeHere(mouseX, mouseY);
  }
}

function mouseClicked() {
  if(running) {
    probeHere(mouseX, mouseY);
  }
}

function canvasPos2LatentSpace(x, y) {
    var coordX = map(x, 0, width, 0.05, 0.95);
    var coordY = map(y, 0, height, 0.05, 0.95);
    return [norm_ppf(coordX), norm_ppf(coordY)];
}

function probeHere(x, y) {
  print("MOD STATUS: " + modelStatus);
  if(modelStatus == MODEL_READY) {
    modelStatus = MODEL_WORKING;
    var coords = canvasPos2LatentSpace(x, y);
    const inputData = { input_1: new Float32Array(coords) };
    model.predict(inputData).then(outputData => {
      modelOutput = outputData['convolution2d_5'];
      modelStatus = MODEL_READY;
      redraw();
      print("PREDICTED");
    });
  }
}

function draw () {
  if(modelStatus == MODEL_READY && modelOutput == null &&
      probeQueue != null && probeQueue.length > 0) {
    probeCoords = probeQueue.shift();
    probeHere(probeCoords[0], probeCoords[1]);
  }

  fill(modelStatusColors[modelStatus]);
  ellipse(20, height-20, 10, 10);

  if(modelOutput != null) {
    curModelImage.loadPixels();
    for (i = 0; i < 27; i++) {
      for (j = 0; j < 27; j++) {
        var val = (255 * modelOutput[j*27 + i]);
        curModelImage.set(i*2, j*2, color(val));
        curModelImage.set(i*2+1, j*2, color(val));
        curModelImage.set(i*2, j*2+1, color(val));
        curModelImage.set(i*2+1, j*2+1, color(val));
      }
    }
    curModelImage.updatePixels();
    curModelImage.mask(imgMask);
    if (probeCoords != null) {
      image(curModelImage, probeCoords[0]-28, probeCoords[1]-28);      
    }
    else if (mouseX != 0 && mouseY != 0) {
      image(curModelImage, mouseX-28, mouseY-28);
    }
    modelOutput = null;
    if(!running && probeQueue.length == 0) {
      probeQueue = null;
      probeCoords = null;
      running = true;
      noLoop();
    }
  }
}

function keyTyped() {
  if (key == '!') {
    saveBlocksImages();    
  }
  else if (key == '@') {
    saveBlocksImages(true);    
  }
}

index.html

<head>
    <meta charset="utf-8">
    <script src="http://cdnjs.cloudflare.com/ajax/libs/p5.js/0.5.8/p5.js"></script>
    <script language="javascript" type="text/javascript" src=".purview_helper.js"></script>
    <script src="keras.js"></script>
    <script language="javascript" type="text/javascript" src="asketch.js"></script>
    <style> body {padding: 0; margin: 0;} </style>
</head>

<body style="background-color:white">
</body>

keras.js

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this.standalone?this.program=this.webgl.createProgram(n):this.program=this.webgl.createProgram(p)}t("./webgl");e.exports=r,r.TEXTURE_UNIFORM_NAME_0="X",r.TEXTURE_UNIFORM_NAME_1="Y",r.LENGTH_UNIFORM_NAME="N",r.COEFFICIENT_UNIFORM_NAME="a",r.prototype.calculate=function(t,e,n,o,i){var a=this.webgl.context;this.webgl.selectProgram(this.program),this.bindInputTexture(n,a.TEXTURE0,r.TEXTURE_UNIFORM_NAME_0),this.bindInputTexture(o,a.TEXTURE1,r.TEXTURE_UNIFORM_NAME_1);var s=this.webgl.getPad(t);this.bindUniforms(t+s,e),this.webgl.bindOutputTexture(1,t+s,i),a.drawElements(a.TRIANGLES,6,a.UNSIGNED_SHORT,0),this.webgl.unbindInputTexture(a.TEXTURE0),this.webgl.unbindInputTexture(a.TEXTURE1)},r.prototype.bindInputTexture=function(t,e,n){var r=this.webgl.context,o=this.program;r.activeTexture(e),r.bindTexture(r.TEXTURE_2D,t);var i=r.getUniformLocation(o,n);r.uniform1i(i,e-r.TEXTURE0)},r.prototype.bindUniforms=function(t,e){var n=this.webgl.context,o=n.getUniformLocation(this.program,r.LENGTH_UNIFORM_NAME),i=n.getUniformLocation(this.program,r.COEFFICIENT_UNIFORM_NAME);n.uniform1i(o,t),n.uniform1f(i,e)}},{"./webgl":11}],5:[function(t,e,n){function r(t,e){this.webgl=t,this.standalone=null==e||e;var n="precision highp float;\n#define GLSLIFY 1\n\nvarying vec2      outTex;\t// texture coords of row/column to calculate\nuniform sampler2D X;\t\t// texture with data from padded A\nuniform int       N;\t\t// number of columns\nuniform int       pad;\t\t// additional columns to nearest multiple of four\nuniform float     a; \t\t// lower bound\nuniform float     b; \t\t// upper bound\n\n// Render float to bytes according to IEEE 754 Floating Point\nvec4 encode_float_1604150559(float val) {\n\n\t// TODO: correctly handle denormal numbers\n\t// http://www.2ality.com/2012/04/number-encoding.html\n\tfloat a = abs(val);                           // encode absolute value + sign\n\tfloat exp = floor(log2(a));                 // number of powers of 2\n\tfloat mant = pow(2.,log2(a)-exp) * pow(2.,23.);  // multiply to fill 24 bits (implied leading 1)\n\tfloat mant1 = floor(mant / 256. / 256.);    // first 8 bits of mantissa\n\tfloat mant2 = mod(floor(mant / 256.),256.); // second 8 bits\n\tfloat mant3 = mod(mant,256.);               // third 8 bits\n\n\thighp float sign = 128.-128.*(a/val);\t\t\t// sign bit is 256 or 0\n\thighp float e = (sign+exp+127.)/510.;\t\t// exponent and sign\n\thighp float m1 = (mant1-(128.*(1.-mod(exp+127.,2.))))/255.; // handle leading bit\n\thighp float m2 = (mant2)/255.;\t\t\t\t// middle part\n\thighp float m3 = (mant3+.5)/255.;\t\t\t// scale to 0 - 255\n\n\treturn vec4(m3,m2,m1,e);\n}\n\n// select an element from a vector based on index\nfloat select_index_1540259130(vec4 v, int index){\n\tfloat val;\n\tif (index == 0) {\n\t\tval = v.r;\n\t} else if(index == 1) {\n\t\tval = v.g;\n\t} else if(index == 2) {\n\t\tval = v.b;\n\t} else if(index == 3){\n\t\tval = v.a;\n\t} else {\n\t\t// should never be here\n\t\tval = 0.0;\n\t}\n\n\treturn val;\n}\n\nvoid main(void) {\n\n\t// get the implied row and column from .y and .x of passed (output)\n\t// texture coordinate. These map directly to input texture space when\n\t// the relevant dimensions are the same.\n\tfloat row = outTex.y;\n\tfloat col = outTex.x;\n\n\t// return 0.0 if in padded region of output texture\n\tif(col * float(N + pad) > float(N) ) {\n\t\tgl_FragColor = vec4(0.,0.,0.,0.);\n\t\treturn;\n\t}\n\n\t// direct usage of col requires output be padded exactly like input\n\tvec4 x = texture2D( X, vec2(col, row));\n\tvec4 val = clamp(x, a, b);\n\n\t// select and output channel (standalone version only)\n\tint channel = int(mod(col * float(N + pad), 4.0));\n\tfloat sum = select_index_1540259130(val, channel);\n\n\tif (sum == 0.) {\n\t\tgl_FragColor = vec4(0.,0.,0.,0.);\n\t\treturn;\n\t}\n\n\t// output vec4 with bytes for an IEEE754 32-bit floating point number\n\tgl_FragColor = encode_float_1604150559(sum);\n}\n",r="precision highp float;\n#define GLSLIFY 1\n\nvarying vec2      outTex;\t// texture coords of row/column to calculate\nuniform sampler2D X;\t\t// texture with data from padded A\nuniform int       N;\t\t// number of columns\nuniform int       pad;\t\t// additional columns to nearest multiple of four\nuniform float     a; \t\t// lower bound\nuniform float     b; \t\t// upper bound\n\n// set pad values to 0.0, if in padded region of output texture\nvoid fix_pad_1540259130(inout vec4 v, int pad){\n\tv.a = 0.0;\n\tif(pad == 2){\n\t\tv.b = 0.0;\n\t} else if(pad == 3){\n\t\tv.b = 0.0;\n\t\tv.g = 0.0;\n\t}\n}\n\nvoid main(void) {\n\n\t// get the implied row and column from .y and .x of passed (output)\n\t// texture coordinate. These map directly to input texture space when\n\t// the relevant dimensions are the same.\n\tfloat row_t = outTex.y;\n\tfloat col_t = outTex.x;\n\tfloat col = (col_t * float(N + pad) - 2.0); // index of first element in pixel (matrix space)\n\n\t// direct usage of col requires output be padded exactly like input\n\tvec4 x = texture2D( X, vec2(col_t, row_t));\n\tvec4 val_v = clamp(x, a, b);\n\n\t// is last element in pixel past row length?\n\tif(pad > 0 && (col + 4.0) > float(N) ) {\n\t\t// fix elements in padded region\n\t\tfix_pad_1540259130(val_v, pad);\n\t}\n\n\tgl_FragColor = val_v;\n}\n";this.standalone?this.program=this.webgl.createProgram(n):this.program=this.webgl.createProgram(r)}t("./webgl");e.exports=r,r.TEXTURE_UNIFORM_NAME_0="X",r.LENGTH_UNIFORM_NAME="N",r.LOWER_UNIFORM_NAME="a",r.UPPER_UNIFORM_NAME="b",r.prototype.calculate=function(t,e,n,o,i,a){n=null!=n?n:Number.MIN_VALUE,o=null!=o?o:Number.MAX_VALUE;var s=this.webgl.context;this.webgl.selectProgram(this.program),this.bindInputTexture(i,s.TEXTURE0,r.TEXTURE_UNIFORM_NAME_0);var u=this.webgl.getPad(e);this.bindUniforms(e,u,n,o),this.standalone?this.webgl.bindOutputTexture(t,e+u,a):this.webgl.bindOutputTexture(t,(e+u)/4,a),s.drawElements(s.TRIANGLES,6,s.UNSIGNED_SHORT,0),this.webgl.unbindInputTexture(s.TEXTURE0)},r.prototype.bindInputTexture=function(t,e,n){var r=this.webgl.context,o=this.program;r.activeTexture(e),r.bindTexture(r.TEXTURE_2D,t);var i=r.getUniformLocation(o,n);r.uniform1i(i,e-r.TEXTURE0)},r.prototype.bindUniforms=function(t,e,n,o){var i=this.webgl.context,a=i.getUniformLocation(this.program,r.LENGTH_UNIFORM_NAME),s=i.getUniformLocation(this.program,r.UPPER_UNIFORM_NAME),u=i.getUniformLocation(this.program,r.LOWER_UNIFORM_NAME),l=i.getUniformLocation(this.program,"pad");i.uniform1i(a,t),i.uniform1i(l,e),i.uniform1f(u,n),i.uniform1f(s,o)}},{"./webgl":11}],6:[function(t,e,n){function r(t,e){this.webgl=t,this.standalone=null==e||e;var n="// TODO: unroll loop for stride == factor and small values (2, 3)\nprecision highp float;\n#define GLSLIFY 1\n\nvarying vec2      outTex;  // texture coords of row/column to calculate\nuniform sampler2D X;       // texture with data from padded A\nuniform int       factor;  // width of image patch\nuniform float     stride;  // width between image patches\nuniform float     C;       // number of channels\nuniform float     M;\nuniform float     N;\nuniform float     N_out;\nuniform float     M_out;\n\n// Render float to bytes according to IEEE 754 Floating Point\nvec4 encode_float_1540259130(float val) {\n\n\t// TODO: correctly handle denormal numbers\n\t// http://www.2ality.com/2012/04/number-encoding.html\n\tfloat a = abs(val);                           // encode absolute value + sign\n\tfloat exp = floor(log2(a));                 // number of powers of 2\n\tfloat mant = pow(2.,log2(a)-exp) * pow(2.,23.);  // multiply to fill 24 bits (implied leading 1)\n\tfloat mant1 = floor(mant / 256. / 256.);    // first 8 bits of mantissa\n\tfloat mant2 = mod(floor(mant / 256.),256.); // second 8 bits\n\tfloat mant3 = mod(mant,256.);               // third 8 bits\n\n\thighp float sign = 128.-128.*(a/val);\t\t\t// sign bit is 256 or 0\n\thighp float e = (sign+exp+127.)/510.;\t\t// exponent and sign\n\thighp float m1 = (mant1-(128.*(1.-mod(exp+127.,2.))))/255.; // handle leading bit\n\thighp float m2 = (mant2)/255.;\t\t\t\t// middle part\n\thighp float m3 = (mant3+.5)/255.;\t\t\t// scale to 0 - 255\n\n\treturn vec4(m3,m2,m1,e);\n}\n\n// select an element from a vector based on index\nfloat select_index_1604150559(vec4 v, int index){\n\tfloat val;\n\tif (index == 0) {\n\t\tval = v.r;\n\t} else if(index == 1) {\n\t\tval = v.g;\n\t} else if(index == 2) {\n\t\tval = v.b;\n\t} else if(index == 3){\n\t\tval = v.a;\n\t} else {\n\t\t// should never be here\n\t\tval = 0.0;\n\t}\n\n\treturn val;\n}\n\nvoid main(void) {\n\n\t// get the implied row and column from .y and .x of passed (output)\n\t// texture coordinate and translate to output pixel space.\n\tfloat row = floor(outTex.y * M_out);   // row on output texture (matrix space)\n\tfloat col = floor(outTex.x * N_out); // column on output texture (matrix space)\n\tfloat vcol = floor(col / C);   // virtual column on output texture (matrix space)\n\tfloat vchannel = floor(mod(col, C)); // virtual channel on output texture\n\n\tconst float min = -1.0e+08;\n\tvec4 currentMax = vec4(min, min, min, min);\n\n\tfloat deltaY = 1.0/M;\n\tfloat deltaX = 1.0/N;\n\tfloat y = ((row * stride) + 0.5)*deltaY; // texture position of input row\n\tfloat x;\n\tfloat z = vchannel * deltaX;\n\tfor (int i = 0; i < 100; i += 1) {\n\t\tif (i >= factor) {\n\t\t\tbreak;\n\t\t}\n\t\tx = ((vcol * stride * C) + 0.5) * deltaX; // texture position of input column\n\n\t\tfor (int j = 0; j < 100; j += 1) {\n\t\t\tif (j >= factor) {\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tvec2 coords = vec2(x + z, y);\n\t\t\tvec4 x_v = texture2D(X, coords);\n\t\t\tcurrentMax = max(currentMax, x_v);\n\n\t\t\tx += (deltaX * C);\n\t\t}\n\t\ty += deltaY;\n\t}\n\tint chan = int(mod(outTex.x * N_out, 4.0 ));\n\tfloat val = select_index_1604150559(currentMax, int(chan));\n\tif (val == 0.) {\n\t\tgl_FragColor = vec4(0.,0.,0.,0.);\n\t\treturn;\n\t}\n\n\tgl_FragColor = encode_float_1540259130(val);\n}\n";p="// TODO: unroll loop for stride == factor and small values (2, 3)\nprecision highp float;\n#define GLSLIFY 1\n\nvarying vec2      outTex;  // texture coords of row/column to calculate\nuniform sampler2D X;       // texture with data from padded A\nuniform int       factor;  // width of image patch\nuniform float     stride;  // width between image patches\nuniform float     C;       // number of channels\nuniform float     M;\nuniform float     N;\nuniform float     N_out;\nuniform float     M_out;\n\nvoid main(void) {\n\n\t// get the implied row and column from .y and .x of passed (output)\n\t// texture coordinate and translate to output pixel space.\n\tfloat row = floor(outTex.y * M_out);   // row on output texture (pixel space)\n\tfloat col = floor(outTex.x * N_out); // column on output texture (matrix space)\n\tfloat vcol = floor(col / C);   // virtual column on output texture (matrix space)\n\tfloat vchannel = floor(mod(col, C)); // virtual channel on output texture\n\n\tconst float min = -1.0e+08;\n\tvec4 currentMax = vec4(min, min, min, min);\n\n\tfloat deltaY = 1.0/M;\n\tfloat deltaX = 1.0/N;\n\tfloat y = ((row * stride) + 0.5)*deltaY; // texture position of input row\n\tfloat x;\n\tfloat z = vchannel * deltaX;\n\tfor (int i = 0; i < 100; i += 1) {\n\t\tif (i >= factor) {\n\t\t\tbreak;\n\t\t}\n\t\tx = ((vcol * stride * C) + 0.5) * deltaX; // texture position of input column\n\n\t\tfor (int j = 0; j < 100; j += 1) {\n\t\t\tif (j >= factor) {\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tvec2 coords = vec2(x + z, y);\n\t\t\tvec4 x_v = texture2D(X, coords);\n\t\t\tcurrentMax = max(currentMax, x_v);\n\n\t\t\tx += (deltaX * C);\n\t\t}\n\t\ty += deltaY;\n\t}\n\n\tgl_FragColor = currentMax;\n}\n",this.standalone?this.program=this.webgl.createProgram(n):this.program=this.webgl.createProgram(p)}var o=t("./webgl");e.exports=r,r.TEXTURE_UNIFORM_NAME_0="X",r.INPUT_ROW_COUNT_UNIFORM_NAME="M",r.INPUT_COLUMN_COUNT_UNIFORM_NAME="N",r.OUTPUT_ROW_COUNT_UNIFORM_NAME="M_out",r.OUTPUT_COLUMN_COUNT_UNIFORM_NAME="N_out",r.FACTOR_UNIFORM_NAME="factor",r.STRIDE_UNIFORM_NAME="stride",r.CHANNEL_COUNT_UNIFORM_NAME="C",r.prototype.calculate=function(t,e,n,i,a,s,u){if(n%o.COMPONENTS_PER_TEXEL!=0)throw new Error("Channel count must be a multiple of "+o.COMPONENTS_PER_TEXEL);var l=this.webgl.context,c=(Math.floor((e-i)/a)+1)*n,f=Math.floor((t-i)/a)+1;this.webgl.selectProgram(this.program),this.bindInputTexture(s,l.TEXTURE0,r.TEXTURE_UNIFORM_NAME_0),this.bindUniforms(t,e*n,f,c,i,a,n),this.standalone?this.webgl.bindOutputTexture(f,c,u):this.webgl.bindOutputTexture(f,c/o.COMPONENTS_PER_TEXEL,u),l.drawElements(l.TRIANGLES,6,l.UNSIGNED_SHORT,0),this.webgl.unbindInputTexture(l.TEXTURE0)},r.prototype.bindInputTexture=function(t,e,n){var r=this.webgl.context,o=this.program;r.activeTexture(e),r.bindTexture(r.TEXTURE_2D,t);var i=r.getUniformLocation(o,n);r.uniform1i(i,e-r.TEXTURE0)},r.prototype.bindUniforms=function(t,e,n,o,i,a,s){var u=this.webgl.context,l=u.getUniformLocation(this.program,r.INPUT_ROW_COUNT_UNIFORM_NAME),c=u.getUniformLocation(this.program,r.INPUT_COLUMN_COUNT_UNIFORM_NAME),f=u.getUniformLocation(this.program,r.OUTPUT_ROW_COUNT_UNIFORM_NAME),p=u.getUniformLocation(this.program,r.OUTPUT_COLUMN_COUNT_UNIFORM_NAME),h=u.getUniformLocation(this.program,r.FACTOR_UNIFORM_NAME),d=u.getUniformLocation(this.program,r.STRIDE_UNIFORM_NAME),v=u.getUniformLocation(this.program,r.CHANNEL_COUNT_UNIFORM_NAME);u.uniform1f(l,t),u.uniform1f(c,e),u.uniform1f(f,n),u.uniform1f(p,o),u.uniform1i(h,i),u.uniform1f(d,a),u.uniform1f(v,s)}},{"./webgl":11}],7:[function(t,e,n){function r(t,e){this.webgl=t,this.standalone=null==e||e;var n="// fragment shader that calculates the matrix product and renders each\n// element to the bytes representing a 32-bit IEEE754 floating point in\n// the output RGBA canvas.\n// readPixel is used to read the bytes.\n\nprecision highp float;\n#define GLSLIFY 1\n\nvarying vec2      outTex;\t// texture coords of row/column to calculate\nuniform sampler2D A;\t\t// texture with data from padded A\nuniform sampler2D B_t;\t\t// texture with data from padded transpose of B\nuniform int       K;\t\t// number of elements in shared dimension\nuniform int       N;\t\t// number of columns in output\nuniform int       pad;\t\t//\nuniform float     alpha; \t// coefficient to multiplication\n\n// sum of products between elements in row i (from A) x col j (from B)\n\n// Calculate the dot product between the row (from A) and column (from B)\n// identified by the passed indeces (output texture coordinate space).\n// We loop over elements in the row and column and sum the product\n// using the glsl `dot` function to process four elements at a time.\n// This four element optimization requires that the matrix B be\n// transposed before texel packing and that both matrices be padded\n// (with zeros) to a multiple of four (4) in their shared dimension.\nfloat dot_rowcol_1540259130(float y, float x, sampler2D A, sampler2D B_t, int K) {\n\tfloat delta_t = 1./float(K);// space (on texture) between elements\n\tfloat sum = 0.;\t\t\t// sum for this row/column pair\n\tfloat z = 0.5 * (4.0 * delta_t);// position for shared dimension on source textures\n\n\tfor (int l=0 ; l<4096 ; ++l) {\n\t\tif(l >= K / 4) break;    // stop when we finish the row/column\n\t\t// l is in pixel space, so we divide by four\n\n\t\t// retrieve next four elements from each texture\n\t\tvec4 a_ik = texture2D(  A, vec2(z, y));\n\t\tvec4 b_kj = texture2D(B_t, vec2(z, x));\n\n\t// use `dot` to process four elements at a time\n\t\tsum +=  dot(a_ik, b_kj);\n\t\tz += (4.0 * delta_t);      // (z + 0.5)*delta\n\t}\n\treturn sum;\n}\n\n// Render float to bytes according to IEEE 754 Floating Point\nvec4 encode_float_1604150559(float val) {\n\n\t// TODO: correctly handle denormal numbers\n\t// http://www.2ality.com/2012/04/number-encoding.html\n\tfloat a = abs(val);                           // encode absolute value + sign\n\tfloat exp = floor(log2(a));                 // number of powers of 2\n\tfloat mant = pow(2.,log2(a)-exp) * pow(2.,23.);  // multiply to fill 24 bits (implied leading 1)\n\tfloat mant1 = floor(mant / 256. / 256.);    // first 8 bits of mantissa\n\tfloat mant2 = mod(floor(mant / 256.),256.); // second 8 bits\n\tfloat mant3 = mod(mant,256.);               // third 8 bits\n\n\thighp float sign = 128.-128.*(a/val);\t\t\t// sign bit is 256 or 0\n\thighp float e = (sign+exp+127.)/510.;\t\t// exponent and sign\n\thighp float m1 = (mant1-(128.*(1.-mod(exp+127.,2.))))/255.; // handle leading bit\n\thighp float m2 = (mant2)/255.;\t\t\t\t// middle part\n\thighp float m3 = (mant3+.5)/255.;\t\t\t// scale to 0 - 255\n\n\treturn vec4(m3,m2,m1,e);\n}\n\nvoid main(void) {\n\n\t// get the implied row and column from .y and .x of passed (output)\n\t// texture coordinate. These map directly to input texture space when\n\t// the relevant dimensions are the same.\n\tfloat row_t = outTex.y;\n\tfloat col_t = outTex.x;\n\n\t// sum row x col for the passed pixel\n\tfloat sum = alpha * dot_rowcol_1540259130(row_t, col_t * float(N + pad)/float(N), A, B_t, K);\n\n\tif (sum == 0.) {\n\t\tgl_FragColor = vec4(0.,0.,0.,0.);\n\t\treturn;\n\t}\n\n\t// output vec4 with bytes for an IEEE754 32-bit floating point number\n\tgl_FragColor = encode_float_1604150559(sum);\n}\n",r="// fragment shader that calculates the matrix product (with additive 'C' term)\n// and renders each element to the bytes representing a 32-bit IEEE754 floating\n// point in the output RGBA canvas.\n// readPixel is used to read the bytes.\n\nprecision highp float;\n#define GLSLIFY 1\n\nvarying vec2      outTex;\t// texture coords of row/column to calculate\nuniform sampler2D A;\t\t// texture with data from padded A\nuniform sampler2D B_t;\t\t// texture with data from padded transpose of B\nuniform sampler2D C;\t\t// texture with data from C\nuniform int       K;\t\t// number of elements in shared dimension\nuniform int       N;\t\t// number of columns in output\nuniform int       pad;\t\t//\nuniform float     alpha; \t// coefficient to multiplication\nuniform float     beta; \t// coefficient to additive term\n\n// sum of products between elements in row i (from A) x col j (from B)\n\n// Calculate the dot product between the row (from A) and column (from B)\n// identified by the passed indeces (output texture coordinate space).\n// We loop over elements in the row and column and sum the product\n// using the glsl `dot` function to process four elements at a time.\n// This four element optimization requires that the matrix B be\n// transposed before texel packing and that both matrices be padded\n// (with zeros) to a multiple of four (4) in their shared dimension.\nfloat dot_rowcol_1540259130(float y, float x, sampler2D A, sampler2D B_t, int K) {\n\tfloat delta_t = 1./float(K);// space (on texture) between elements\n\tfloat sum = 0.;\t\t\t// sum for this row/column pair\n\tfloat z = 0.5 * (4.0 * delta_t);// position for shared dimension on source textures\n\n\tfor (int l=0 ; l<4096 ; ++l) {\n\t\tif(l >= K / 4) break;    // stop when we finish the row/column\n\t\t// l is in pixel space, so we divide by four\n\n\t\t// retrieve next four elements from each texture\n\t\tvec4 a_ik = texture2D(  A, vec2(z, y));\n\t\tvec4 b_kj = texture2D(B_t, vec2(z, x));\n\n\t// use `dot` to process four elements at a time\n\t\tsum +=  dot(a_ik, b_kj);\n\t\tz += (4.0 * delta_t);      // (z + 0.5)*delta\n\t}\n\treturn sum;\n}\n\n// Render float to bytes according to IEEE 754 Floating Point\nvec4 encode_float_1117569599(float val) {\n\n\t// TODO: correctly handle denormal numbers\n\t// http://www.2ality.com/2012/04/number-encoding.html\n\tfloat a = abs(val);                           // encode absolute value + sign\n\tfloat exp = floor(log2(a));                 // number of powers of 2\n\tfloat mant = pow(2.,log2(a)-exp) * pow(2.,23.);  // multiply to fill 24 bits (implied leading 1)\n\tfloat mant1 = floor(mant / 256. / 256.);    // first 8 bits of mantissa\n\tfloat mant2 = mod(floor(mant / 256.),256.); // second 8 bits\n\tfloat mant3 = mod(mant,256.);               // third 8 bits\n\n\thighp float sign = 128.-128.*(a/val);\t\t\t// sign bit is 256 or 0\n\thighp float e = (sign+exp+127.)/510.;\t\t// exponent and sign\n\thighp float m1 = (mant1-(128.*(1.-mod(exp+127.,2.))))/255.; // handle leading bit\n\thighp float m2 = (mant2)/255.;\t\t\t\t// middle part\n\thighp float m3 = (mant3+.5)/255.;\t\t\t// scale to 0 - 255\n\n\treturn vec4(m3,m2,m1,e);\n}\n\n// select an element from a vector based on index\nfloat select_index_1604150559(vec4 v, int index){\n\tfloat val;\n\tif (index == 0) {\n\t\tval = v.r;\n\t} else if(index == 1) {\n\t\tval = v.g;\n\t} else if(index == 2) {\n\t\tval = v.b;\n\t} else if(index == 3){\n\t\tval = v.a;\n\t} else {\n\t\t// should never be here\n\t\tval = 0.0;\n\t}\n\n\treturn val;\n}\n\nvoid main(void) {\n\n\t// get the implied row and column from .y and .x of passed (output)\n\t// texture coordinate. These map directly to input texture space when\n\t// the relevant dimensions are the same.\n\tfloat row_t = outTex.y;\n\tfloat col_t = outTex.x;\n\tvec4 c_vec = texture2D(C, vec2(col_t, 0.5));\n\n\t// should be -0.5, but that subtly breaks at zero\n\tfloat col = col_t * float(N + pad); // index of first element in pixel (matrix space)\n\tint channel = int(mod(col, 4.0 ));\n\tfloat c = select_index_1604150559(c_vec, channel);\n\n\t// sum row x col for the passed pixel\n\tfloat sum = alpha * dot_rowcol_1540259130(row_t, col_t * float(N + pad)/float(N), A, B_t, K);\n\tsum += beta * c;\n\n\tif (sum == 0.) {\n\t\tgl_FragColor = vec4(0.,0.,0.,0.);\n\t\treturn;\n\t}\n\n\t// output vec4 with bytes for an IEEE754 32-bit floating point number\n\tgl_FragColor = encode_float_1117569599(sum);\n}\n",o="// fragment shader that calculates the matrix product and writes each\n// element to a pixel component in a floating point texture.\n// the output RGBA canvas.\n// readPixel is used to read the bytes.\n\nprecision highp float;\n#define GLSLIFY 1\n\nvarying vec2      outTex;\t// texture coords of row/column to calculate\nuniform sampler2D A;\t\t// texture with data from padded A\nuniform sampler2D B_t;\t\t// texture with data from padded transpose of B\nuniform int       K;\t\t// number of elements in shared dimension\nuniform int       N;\t\t// number of columns in output\nuniform int       pad;\t\t//\nuniform float     alpha; \t// coefficient to multiplication\n\n// sum of products between elements in row i (from A) x col j (from B)\n\n// Calculate the dot product between the row (from A) and column (from B)\n// identified by the passed indeces (output texture coordinate space).\n// We loop over elements in the row and column and sum the product\n// using the glsl `dot` function to process four elements at a time.\n// This four element optimization requires that the matrix B be\n// transposed before texel packing and that both matrices be padded\n// (with zeros) to a multiple of four (4) in their shared dimension.\nfloat dot_rowcol_1540259130(float y, float x, sampler2D A, sampler2D B_t, int K) {\n\tfloat delta_t = 1./float(K);// space (on texture) between elements\n\tfloat sum = 0.;\t\t\t// sum for this row/column pair\n\tfloat z = 0.5 * (4.0 * delta_t);// position for shared dimension on source textures\n\n\tfor (int l=0 ; l<4096 ; ++l) {\n\t\tif(l >= K / 4) break;    // stop when we finish the row/column\n\t\t// l is in pixel space, so we divide by four\n\n\t\t// retrieve next four elements from each texture\n\t\tvec4 a_ik = texture2D(  A, vec2(z, y));\n\t\tvec4 b_kj = texture2D(B_t, vec2(z, x));\n\n\t// use `dot` to process four elements at a time\n\t\tsum +=  dot(a_ik, b_kj);\n\t\tz += (4.0 * delta_t);      // (z + 0.5)*delta\n\t}\n\treturn sum;\n}\n\nvoid main(void) {\n\n\t// get the implied row and column from .y and .x of passed (output)\n\t// texture coordinate. These map directly to input texture space when\n\t// the relevant dimensions are the same.\n\tfloat row_t = outTex.y;\n\tfloat col_t = outTex.x;\n\n\tvec4 sum_v = vec4(0.0, 0.0, 0.0, 0.0);\n\tfloat col = (col_t * float(N + pad) - 2.0); // index of first element in pixel (matrix space)\n\tsum_v.r = alpha * dot_rowcol_1540259130(row_t, (col + 0.5)/float(N), A, B_t, K);\n\t// is last element in pixel past row length?\n\tif(pad > 0 && (col + 4.0) > float(N) ) {\n\t\t// compute elements in padded region\n\t\tif(pad < 3){\n\t\t\tsum_v.g = alpha * dot_rowcol_1540259130(row_t, (col + 1.5)/float(N), A, B_t, K);\n\t\t}\n\t\tif(pad < 2){\n\t\t\tsum_v.b = alpha * dot_rowcol_1540259130(row_t, (col + 2.5)/float(N), A, B_t, K);\n\t\t}\n\t} else {\n\t\tsum_v.g = alpha * dot_rowcol_1540259130(row_t, (col + 1.5)/float(N), A, B_t, K);\n\t\tsum_v.b = alpha * dot_rowcol_1540259130(row_t, (col + 2.5)/float(N), A, B_t, K);\n\t\tsum_v.a = alpha * dot_rowcol_1540259130(row_t, (col + 3.5)/float(N), A, B_t, K);\n\t}\n\n\tgl_FragColor = sum_v;\n}\n",i="// fragment shader that calculates the matrix product and writes each\n// element to a pixel component in a floating point texture.\n// the output RGBA canvas.\n// readPixel is used to read the bytes.\n\nprecision highp float;\n#define GLSLIFY 1\n\nvarying vec2      outTex;\t// texture coords of row/column to calculate\nuniform sampler2D A;\t\t// texture with data from padded A\nuniform sampler2D B_t;\t\t// texture with data from padded transpose of B\nuniform sampler2D C;\t\t// texture with data from C\nuniform int       K;\t\t// number of elements in shared dimension\nuniform int       N;\t\t// number of columns in output\nuniform int       pad;\t\t//\nuniform float     alpha; \t// coefficient to multiplication\nuniform float     beta; \t// coefficient to addition\n\n// sum of products between elements in row i (from A) x col j (from B)\n\n// Calculate the dot product between the row (from A) and column (from B)\n// identified by the passed indeces (output texture coordinate space).\n// We loop over elements in the row and column and sum the product\n// using the glsl `dot` function to process four elements at a time.\n// This four element optimization requires that the matrix B be\n// transposed before texel packing and that both matrices be padded\n// (with zeros) to a multiple of four (4) in their shared dimension.\nfloat dot_rowcol_1540259130(float y, float x, sampler2D A, sampler2D B_t, int K) {\n\tfloat delta_t = 1./float(K);// space (on texture) between elements\n\tfloat sum = 0.;\t\t\t// sum for this row/column pair\n\tfloat z = 0.5 * (4.0 * delta_t);// position for shared dimension on source textures\n\n\tfor (int l=0 ; l<4096 ; ++l) {\n\t\tif(l >= K / 4) break;    // stop when we finish the row/column\n\t\t// l is in pixel space, so we divide by four\n\n\t\t// retrieve next four elements from each texture\n\t\tvec4 a_ik = texture2D(  A, vec2(z, y));\n\t\tvec4 b_kj = texture2D(B_t, vec2(z, x));\n\n\t// use `dot` to process four elements at a time\n\t\tsum +=  dot(a_ik, b_kj);\n\t\tz += (4.0 * delta_t);      // (z + 0.5)*delta\n\t}\n\treturn sum;\n}\n\nvoid main(void) {\n\n\t// get the implied row and column from .y and .x of passed (output)\n\t// texture coordinate. These map directly to input texture space when\n\t// the relevant dimensions are the same.\n\tfloat row_t = outTex.y;\n\tfloat col_t = outTex.x;\n\tvec4 c_v = texture2D(C, vec2(col_t, 0.5));\n\n\tvec4 sum_v = vec4(0.0, 0.0, 0.0, 0.0);\n\tfloat col = (col_t * float(N + pad) - 2.0); // index of first element in pixel (matrix space)\n\tsum_v.r = alpha * dot_rowcol_1540259130(row_t, (col + 0.5)/float(N), A, B_t, K);\n\t// in the padding region?\n\tif(pad > 0 && (col + 4.0) > float(N) ) {\n\t\t// pad\n\t\tif(pad < 3){\n\t\t\tsum_v.g = alpha * dot_rowcol_1540259130(row_t, (col + 1.5)/float(N), A, B_t, K);\n\t\t}\n\t\tif(pad < 2){\n\t\t\tsum_v.b = alpha * dot_rowcol_1540259130(row_t, (col + 2.5)/float(N), A, B_t, K);\n\t\t}\n\t} else {\n\t\tsum_v.g = alpha * dot_rowcol_1540259130(row_t, (col + 1.5)/float(N), A, B_t, K);\n\t\tsum_v.b = alpha * dot_rowcol_1540259130(row_t, (col + 2.5)/float(N), A, B_t, K);\n\t\tsum_v.a = alpha * dot_rowcol_1540259130(row_t, (col + 3.5)/float(N), A, B_t, K);\n\t}\n\n\tgl_FragColor = sum_v + beta*c_v;\n}\n";this.standalone?(this.program_=this.webgl.createProgram(n),this.program_c=this.webgl.createProgram(r)):(this.program_=this.webgl.createProgram(o),this.program_c=this.webgl.createProgram(i))}t("./webgl");e.exports=r,r.TEXTURE_UNIFORM_NAME_0="A",r.TEXTURE_UNIFORM_NAME_1="B_t",r.TEXTURE_UNIFORM_NAME_2="C",r.SHARED_LENGTH_UNIFORM_NAME="K",r.COLUMN_COUNT_UNIFORM_NAME="N",r.PAD_UNIFORM_NAME="pad",r.ALPHA_UNIFORM_NAME="alpha",r.BETA_UNIFORM_NAME="beta",r.prototype.calculate=function(t,e,n,o,i,a,s,u,l){var c=this.webgl.context;null!=u?this.program=this.program_c:(s=null,this.program=this.program_),this.webgl.selectProgram(this.program),this.bindInputTexture(i,c.TEXTURE0,r.TEXTURE_UNIFORM_NAME_0),this.bindInputTexture(a,c.TEXTURE1,r.TEXTURE_UNIFORM_NAME_1),null!=u&&this.bindInputTexture(u,c.TEXTURE2,r.TEXTURE_UNIFORM_NAME_2);var f=this.webgl.getPad(n),p=this.webgl.getPad(e);this.bindUniforms(e,n+f,p,o,s),this.standalone?this.webgl.bindOutputTexture(t,e+p,l):this.webgl.bindOutputTexture(t,(e+p)/4,l),c.drawElements(c.TRIANGLES,6,c.UNSIGNED_SHORT,0),this.webgl.unbindInputTexture(c.TEXTURE0),this.webgl.unbindInputTexture(c.TEXTURE1),this.webgl.unbindInputTexture(c.TEXTURE2)},r.prototype.bindInputTexture=function(t,e,n){var r=this.webgl.context,o=this.program;r.activeTexture(e),r.bindTexture(r.TEXTURE_2D,t);var i=r.getUniformLocation(o,n);r.uniform1i(i,e-r.TEXTURE0)},r.prototype.bindUniforms=function(t,e,n,o,i){var a=this.webgl.context,s=a.getUniformLocation(this.program,r.SHARED_LENGTH_UNIFORM_NAME),u=a.getUniformLocation(this.program,r.ALPHA_UNIFORM_NAME),l=a.getUniformLocation(this.program,r.BETA_UNIFORM_NAME),c=a.getUniformLocation(this.program,r.COLUMN_COUNT_UNIFORM_NAME),f=f=a.getUniformLocation(this.program,r.PAD_UNIFORM_NAME);a.uniform1f(l,i),a.uniform1i(c,t),a.uniform1i(f,n),a.uniform1i(s,e),a.uniform1f(u,o)}},{"./webgl":11}],8:[function(t,e,n){function r(t,e){this.webgl=t,this.standalone=null==e||e;var n="precision highp float;\n#define GLSLIFY 1\n\nvarying vec2      outTex;  // texture coords of row/column to calculate\nuniform sampler2D X;       // texture with data from padded A\nuniform float     factor;  // width of image patch\nuniform float     stride;  // width between image patches\nuniform float     margin;\nuniform float     N_p;     // patches across\nuniform float     M;\nuniform float     N;\nuniform float     pad;\nuniform float     M_in;\nuniform float     N_in;\nuniform float     C;       // number of channels in input\nuniform float     pad_in;\n\n// select an element from a vector based on index\nfloat select_index_1540259130(vec4 v, int index){\n\tfloat val;\n\tif (index == 0) {\n\t\tval = v.r;\n\t} else if(index == 1) {\n\t\tval = v.g;\n\t} else if(index == 2) {\n\t\tval = v.b;\n\t} else if(index == 3){\n\t\tval = v.a;\n\t} else {\n\t\t// should never be here\n\t\tval = 0.0;\n\t}\n\n\treturn val;\n}\n\n// translate a linear index into x, y coordinates for a matrix\nvec2 linear_index_coords_1604150559(float linear_index, float row_length){\n\tvec2 coords;\n\n\tcoords.x = floor(mod(linear_index + 0.5, row_length)); // column\n\tcoords.y = floor((linear_index + 0.5) / row_length); // row\n\n\treturn coords;\n}\n\n// set pad values to 0.0, if in padded region of output texture\nvoid fix_pad_1117569599(inout vec4 v, int pad){\n\tv.a = 0.0;\n\tif(pad == 2){\n\t\tv.b = 0.0;\n\t} else if(pad == 3){\n\t\tv.b = 0.0;\n\t\tv.g = 0.0;\n\t}\n}\n\nvoid main(void) {\n\n\t// get the implied row and column from .y and .x of passed (output)\n\t// texture coordinate\n\tfloat row_t = outTex.y;\n\tfloat col_t = outTex.x;\n\n\t// row corresponds to patch\n\tfloat row = floor(row_t * M) + 0.5;\n\t// column corresponds to placement in patch\n\tfloat col_0 = floor(col_t * (N + pad) - 1.5); // index of first element in output pixel (matrix space)\n\n\t// N_p = patches across\n\tfloat col_patch = floor(mod(row, N_p)); // column index in grid of patches\n\tfloat row_patch = floor(row / N_p); // row index in grid of patches\n\tfloat col_in_0 = (col_patch * stride - margin) * C; // input column index of left element in patch\n\tfloat row_in_0 = row_patch * stride - margin; // input row index of top element in patch\n\n\tvec4 pixel_in;\n\tvec4 result = vec4(0.0, 0.0, 0.0, 0.0);\n\tvec2 coords = linear_index_coords_1604150559(col_0, factor * C); // coords inside patch\n\tvec2 ncoords;\n\tint channel_in = int(mod(col_in_0 + coords.x, 4.0));\n\tvec2 scale_in = vec2(1.0/(N_in + pad_in), 1.0/M_in); // scale from matrix to input texture coords\n\tvec2 offset_in = vec2(col_in_0 + 2.0 - float(channel_in), row_in_0 + 0.5); // offset into patch (and pixel)\n\n\tconst vec2 pixel_scale = vec2(1.0/4.0, 1.0); // scale from matrix to pixel coords\n\n\tpixel_in = texture2D(X, (coords + offset_in) * scale_in);\n\n\t// go through channels for current output pixel\n\tfor(int channel = 0; channel < 4; channel++){\n\n\t\t// are we on a new input pixel?\n\t\tncoords = linear_index_coords_1604150559(col_0 + float(channel), factor * C);\n\n\t\t// are we in the margin or outside the input texture?\n\t\tif((col_in_0 + ncoords.x + 0.5 < 0.0) || (row_in_0 + ncoords.y + 0.5 < 0.0) ||\n\t\t   (col_in_0 + ncoords.x + 0.5) > (N_in) || row_in_0 + ncoords.y + 0.5 > M_in){\n\t\t\t// yes, create a virtual pixel\n\t\t\tpixel_in = vec4(0.0, 0.0, 0.0, 0.0);\n\t\t} else if(floor(ncoords * pixel_scale) != floor(coords * pixel_scale)){\n\t\t\t// no, get the get the next real pixel\n\t\t\tcoords = ncoords;\n\t\t\toffset_in.x += float(channel_in);\n\t\t\tchannel_in = 0;\n\t\t\tpixel_in = texture2D(X, (coords + offset_in) * scale_in);\n\t\t}\n\n\t\tif(channel == 0){\n\t\t\tresult.r = select_index_1540259130(pixel_in, channel_in);\n\t\t} else if(channel == 1){\n\t\t\tresult.g = select_index_1540259130(pixel_in, channel_in);\n\t\t} else if(channel == 2){\n\t\t\tresult.b = select_index_1540259130(pixel_in, channel_in);\n\t\t} else {\n\t\t\tresult.a = select_index_1540259130(pixel_in, channel_in);\n\t\t}\n\n\t\tchannel_in++;\n\t\toffset_in.x -= 1.0;\n\t}\n\n\t// fix padded region\n\tif(pad > 0.0 && col_0 + 4.0 > N ) {\n\t\tfix_pad_1117569599(result, int(pad));\n\t}\n\n\t//gl_FragColor = vec4(row_in_0, col_in_0, channel_in, N_p);\n\tgl_FragColor = result;\n}\n";
this.standalone?this.program=this.webgl.createProgram(s):this.program=this.webgl.createProgram(n)}t("./webgl");e.exports=r,r.TEXTURE_UNIFORM_NAME_0="X",r.STRIDE_UNIFORM_NAME="stride",r.KERNEL_WIDTH_UNIFORM_NAME="factor",r.prototype.calculate=function(t,e,n,o,i,a,s,u,l,c,f){var p=this.webgl.context,h=this.webgl.getPad(e*n),d=this.webgl.getPad(i);this.webgl.selectProgram(this.program),this.bindInputTexture(c,p.TEXTURE0,r.TEXTURE_UNIFORM_NAME_0),this.bindUniforms(o,i,d,t,e*n,n,h,a,s,u,l),this.standalone?this.webgl.bindOutputTexture(o,i+d,f):this.webgl.bindOutputTexture(o,(i+d)/4,f),p.drawElements(p.TRIANGLES,6,p.UNSIGNED_SHORT,0),this.webgl.unbindInputTexture(p.TEXTURE0)},r.prototype.bindInputTexture=function(t,e,n){var r=this.webgl.context,o=this.program;r.activeTexture(e),r.bindTexture(r.TEXTURE_2D,t);var i=r.getUniformLocation(o,n);r.uniform1i(i,e-r.TEXTURE0)},r.prototype.bindUniforms=function(t,e,n,o,i,a,s,u,l,c,f){var p=this.webgl.context,h=p.getUniformLocation(this.program,"M"),d=p.getUniformLocation(this.program,"N"),v=p.getUniformLocation(this.program,"C"),m=p.getUniformLocation(this.program,"M_in"),_=p.getUniformLocation(this.program,"N_in"),g=p.getUniformLocation(this.program,r.STRIDE_UNIFORM_NAME),y=p.getUniformLocation(this.program,r.KERNEL_WIDTH_UNIFORM_NAME),b=p.getUniformLocation(this.program,"pad"),w=p.getUniformLocation(this.program,"pad_in"),x=p.getUniformLocation(this.program,"N_p");margin_gl=p.getUniformLocation(this.program,"margin"),p.uniform1f(h,t),p.uniform1f(d,e),p.uniform1f(b,n),p.uniform1f(m,o),p.uniform1f(_,i),p.uniform1f(v,a),p.uniform1f(w,s),p.uniform1f(x,u),p.uniform1f(y,l),p.uniform1f(g,c),p.uniform1f(margin_gl,f)}},{"./webgl":11}],9:[function(t,e,n){function r(t,e){this.webgl=t,this.standalone=null==e||e;var n="precision highp float;\n#define GLSLIFY 1\n\nvarying vec2      outTex;\t// texture coords of row/column to calculate\nuniform sampler2D X;\t\t// texture with data from padded X\nuniform int       N;\t\t// number of columns\nuniform int       pad;\t\t// additional columns to nearest multiple of four\nuniform float     b; \t\t// additive term\nuniform float     a; \t\t// multiplicative term\n\n// Render float to bytes according to IEEE 754 Floating Point\nvec4 encode_float_1540259130(float val) {\n\n\t// TODO: correctly handle denormal numbers\n\t// http://www.2ality.com/2012/04/number-encoding.html\n\tfloat a = abs(val);                           // encode absolute value + sign\n\tfloat exp = floor(log2(a));                 // number of powers of 2\n\tfloat mant = pow(2.,log2(a)-exp) * pow(2.,23.);  // multiply to fill 24 bits (implied leading 1)\n\tfloat mant1 = floor(mant / 256. / 256.);    // first 8 bits of mantissa\n\tfloat mant2 = mod(floor(mant / 256.),256.); // second 8 bits\n\tfloat mant3 = mod(mant,256.);               // third 8 bits\n\n\thighp float sign = 128.-128.*(a/val);\t\t\t// sign bit is 256 or 0\n\thighp float e = (sign+exp+127.)/510.;\t\t// exponent and sign\n\thighp float m1 = (mant1-(128.*(1.-mod(exp+127.,2.))))/255.; // handle leading bit\n\thighp float m2 = (mant2)/255.;\t\t\t\t// middle part\n\thighp float m3 = (mant3+.5)/255.;\t\t\t// scale to 0 - 255\n\n\treturn vec4(m3,m2,m1,e);\n}\n\n// select an element from a vector based on index\nfloat select_index_1604150559(vec4 v, int index){\n\tfloat val;\n\tif (index == 0) {\n\t\tval = v.r;\n\t} else if(index == 1) {\n\t\tval = v.g;\n\t} else if(index == 2) {\n\t\tval = v.b;\n\t} else if(index == 3){\n\t\tval = v.a;\n\t} else {\n\t\t// should never be here\n\t\tval = 0.0;\n\t}\n\n\treturn val;\n}\n\nvoid main(void) {\n\n\t// get the implied row and column from .y and .x of passed (output)\n\t// texture coordinate. These map directly to input texture space when\n\t// the relevant dimensions are the same.\n \tfloat row = outTex.y;\n\tfloat col = outTex.x;\n\n\t// direct usage of col requires output be padded exactly like input\n\tvec4 x = texture2D( X, vec2(col, row));\n\tvec4 sum_v = (a * x) + b;\n\tint channel = int(mod(col * float(N + pad), 4.0 ));\n\tfloat sum = select_index_1604150559(sum_v, channel);\n\n\tif (sum == 0.) {\n\t\tgl_FragColor = vec4(0.,0.,0.,0.);\n\t\treturn;\n\t}\n\n \t// output vec4 with bytes for an IEEE754 32-bit floating point number\n\tgl_FragColor = encode_float_1540259130(sum);\n}\n",r="precision highp float;\n#define GLSLIFY 1\n\nvarying vec2      outTex;\t// texture coords of row/column to calculate\nuniform sampler2D X;\t\t// texture with data from padded X\nuniform int       N;\t\t// number of columns\nuniform int       pad;\t\t// additional columns to nearest multiple of four\nuniform float     b; \t\t// additive term\nuniform float     a; \t\t// multiplicative term\n\n// set pad values to 0.0, if in padded region of output texture\nvoid fix_pad_1540259130(inout vec4 v, int pad){\n\tv.a = 0.0;\n\tif(pad == 2){\n\t\tv.b = 0.0;\n\t} else if(pad == 3){\n\t\tv.b = 0.0;\n\t\tv.g = 0.0;\n\t}\n}\n\nvoid main(void) {\n\n\t// get the implied row and column from .y and .x of passed (output)\n\t// texture coordinate. These map directly to input texture space when\n\t// the relevant dimensions are the same.\n\tfloat row_t = outTex.y;\n\tfloat col_t = outTex.x;\n\tfloat col = (col_t * float(N + pad) - 2.0); // index of first element in pixel (matrix space)\n\n\t// direct usage of col requires output be padded exactly like input\n\tvec4 x = texture2D( X, vec2(col_t, row_t));\n\tvec4 sum_v = (a * x) + b;\n\n\t// fix padded region\n\tif(pad > 0 && col + 4.0 > float(N) ) {\n\t\tfix_pad_1540259130(sum_v, pad);\n\t}\n\n\tgl_FragColor = sum_v;\n}\n";this.standalone?this.program=this.webgl.createProgram(n):this.program=this.webgl.createProgram(r)}t("./webgl");e.exports=r,r.TEXTURE_UNIFORM_NAME_0="X",r.LENGTH_UNIFORM_NAME="N",r.ADD_UNIFORM_NAME="b",r.MUL_UNIFORM_NAME="a",r.prototype.calculate=function(t,e,n,o,i,a){var s=this.webgl.context,u=this.webgl.getPad(e);this.webgl.selectProgram(this.program),this.bindInputTexture(i,s.TEXTURE0,r.TEXTURE_UNIFORM_NAME_0),this.bindUniforms(e,u,n,o),this.standalone?this.webgl.bindOutputTexture(t,e+u,a):this.webgl.bindOutputTexture(t,(e+u)/4,a),s.drawElements(s.TRIANGLES,6,s.UNSIGNED_SHORT,0),this.webgl.unbindInputTexture(s.TEXTURE0)},r.prototype.bindInputTexture=function(t,e,n){var r=this.webgl.context,o=this.program;r.activeTexture(e),r.bindTexture(r.TEXTURE_2D,t);var i=r.getUniformLocation(o,n);r.uniform1i(i,e-r.TEXTURE0)},r.prototype.bindUniforms=function(t,e,n,o){var i=this.webgl.context,a=i.getUniformLocation(this.program,r.LENGTH_UNIFORM_NAME),s=i.getUniformLocation(this.program,r.ADD_UNIFORM_NAME),u=i.getUniformLocation(this.program,r.MUL_UNIFORM_NAME),l=i.getUniformLocation(this.program,"pad");i.uniform1i(a,t),i.uniform1i(l,e),i.uniform1f(u,n),i.uniform1f(s,o)}},{"./webgl":11}],10:[function(t,e,n){function r(t,e){if(2!=t.length)throw new Error("Only Tensor of order two (matrix) is supported right now.");var n=t[0],r=t[1];this.texture=i.createDataTexture(n,r,e),this.shape=[n,r],this[Symbol.toStringTag]="Tensor"}var o=t("./globals"),i=o.gl;e.exports=r,r.prototype.delete=function(){i.context.deleteTexture(this.texture),this.texture=null,this.shape=null},r.prototype.transfer=function(t){var e,n,r=this.shape[0],o=this.shape[1];return e=i.createOutputTexture(r,o),i.encode(r,o,this.texture,e),n=new Float32Array(i.readData(r,o)),i.context.deleteTexture(e),t||this.delete(),n},r.prototype.reshape=function(t,e){var n=this.shape[0],o=this.shape[1],a=t[0],s=t[1],u=new r(t,null);return i.reshape(n,o,a,s,this.texture,u.texture),e||this.delete(),u},r.prototype.transpose=function(t){var e=this.shape[0],n=this.shape[1],o=new r([n,e],null);return i.transpose(e,n,this.texture,o.texture),t||this.delete(),o},r.prototype.split=function(t,e){var n=this.shape[0],o=this.shape[1];if(o%2!==0)throw new Error("row count must be multiple of two.");var a=new r([n,o/2],null),s=new r([n,o/2],null);return i.submatrix(o,n,o/2,t,0,this.texture,a.texture),i.submatrix(o,n,o/2,t,1,this.texture,s.texture),e||this.delete(),[a,s]},r.combine=function(t,e,n,o){var a=t.shape[0],s=t.shape[1];if(t.shape[1]!==e.shape[1]||t.shape[0]!==e.shape[0])throw new Error("row and column counts must be equal.");if(n%4!==0)throw new Error("stride must be a multiple of four");var u=new r([a,2*s],null);return i.combine(a,s,n,t.texture,e.texture,u.texture),o||(t.delete(),e.delete()),u}},{"./globals":2}],11:[function(t,e,n){function r(t){var e,n;if(t=t||{},"undefined"==typeof t.canvas?this.canvas=document.createElement("canvas"):this.canvas=t.canvas,e={premultipliedAlpha:!1,preserveDrawingBuffer:!1},this.context=this.canvas.getContext("experimental-webgl",e),null==this.context)throw new Error("No support for Webgl.");try{n=this.context.getExtension("OES_texture_float")}catch(t){}null==n?(console.log("No support for OES_texture_float extension!"),this.hasFloat=!1):this.hasFloat=!0;var r=this.context.getShaderPrecisionFormat(this.context.FRAGMENT_SHADER,this.context.HIGH_FLOAT);this.hasHighPrecision=0!=r.precision,this.hasHighPrecision&&(this.highp=r);var o="// vertex shader for a single quad\n// work is performed in the operation specific texture shader\n\nprecision highp float;\n#define GLSLIFY 1\n\nattribute vec3 pos;\nattribute vec2 tex;\nvarying vec2   outTex;\nvoid main(void)\n{\n\t// just pass the position and texture coords\n\tgl_Position = vec4(pos, 1.0);\n\toutTex = tex;\n}\n";this.vertexShader=this.context.createShader(this.context.VERTEX_SHADER),this.context.shaderSource(this.vertexShader,o),this.context.compileShader(this.vertexShader);var i="\nprecision highp float;\n#define GLSLIFY 1\n\nvarying vec2      outTex;\t// texture coords of row/column to calculate\nuniform sampler2D A;\t\t// texture with data from padded A\nuniform int       N;\t\t// number of columns in output\nuniform int       pad;\t\t//\n\n// Render float to bytes according to IEEE 754 Floating Point\nvec4 encode_float_1540259130(float val) {\n\n\t// TODO: correctly handle denormal numbers\n\t// http://www.2ality.com/2012/04/number-encoding.html\n\tfloat a = abs(val);                           // encode absolute value + sign\n\tfloat exp = floor(log2(a));                 // number of powers of 2\n\tfloat mant = pow(2.,log2(a)-exp) * pow(2.,23.);  // multiply to fill 24 bits (implied leading 1)\n\tfloat mant1 = floor(mant / 256. / 256.);    // first 8 bits of mantissa\n\tfloat mant2 = mod(floor(mant / 256.),256.); // second 8 bits\n\tfloat mant3 = mod(mant,256.);               // third 8 bits\n\n\thighp float sign = 128.-128.*(a/val);\t\t\t// sign bit is 256 or 0\n\thighp float e = (sign+exp+127.)/510.;\t\t// exponent and sign\n\thighp float m1 = (mant1-(128.*(1.-mod(exp+127.,2.))))/255.; // handle leading bit\n\thighp float m2 = (mant2)/255.;\t\t\t\t// middle part\n\thighp float m3 = (mant3+.5)/255.;\t\t\t// scale to 0 - 255\n\n\treturn vec4(m3,m2,m1,e);\n}\n\n// select an element from a vector based on index\nfloat select_index_1604150559(vec4 v, int index){\n\tfloat val;\n\tif (index == 0) {\n\t\tval = v.r;\n\t} else if(index == 1) {\n\t\tval = v.g;\n\t} else if(index == 2) {\n\t\tval = v.b;\n\t} else if(index == 3){\n\t\tval = v.a;\n\t} else {\n\t\t// should never be here\n\t\tval = 0.0;\n\t}\n\n\treturn val;\n}\n\nvoid main(void) {\n\n\t// get the implied row and column from .y and .x of passed (output)\n\t// texture coordinate. These map directly to input texture space when\n\t// the relevant dimensions are the same.\n\tfloat row_t = outTex.y;\n\tfloat col_t = outTex.x;\n\n\tvec4 val_v = texture2D(A, vec2(col_t * float(N)/float(N + pad), row_t));\n\tint channel = int(mod(col_t * float(N), 4.0 ));\n\tfloat val = select_index_1604150559(val_v, channel);\n\n\tif (val == 0.) {\n\t\tgl_FragColor = vec4(0.,0.,0.,0.);\n\t\treturn;\n\t}\n\n \t// output vec4 with bytes for an IEEE754 32-bit floating point number\n\tgl_FragColor = encode_float_1540259130(val);\n}\n",a="\nprecision highp float;\n#define GLSLIFY 1\n\nvarying vec2      outTex;\t// texture coords of row/column to calculate\nuniform sampler2D A;\t\t// texture with data from padded A\nuniform int       M;\t\t// number of rows in output\nuniform int       N;\t\t// number of columns in output\nuniform int       mpad;\t\t//\nuniform int       npad;\t\t//\n\n// select an element from a vector based on index\nfloat select_index_1540259130(vec4 v, int index){\n\tfloat val;\n\tif (index == 0) {\n\t\tval = v.r;\n\t} else if(index == 1) {\n\t\tval = v.g;\n\t} else if(index == 2) {\n\t\tval = v.b;\n\t} else if(index == 3){\n\t\tval = v.a;\n\t} else {\n\t\t// should never be here\n\t\tval = 0.0;\n\t}\n\n\treturn val;\n}\n\nvoid main(void) {\n\n\t// get the implied row and column from .y and .x of passed (output)\n\t// texture coordinate. These map directly to input texture space when\n\t// the relevant dimensions are the same.\n\tfloat row_t = outTex.y;\n\tfloat col_t = outTex.x;\n\tfloat col = (col_t * float(N + npad) - 2.0); // index of first element in pixel (matrix space)\n\n\t// get rows in the input, each containing one element in the output\n\tvec4 row_1 = texture2D(A, vec2((row_t * float(M))/float(M + mpad), (col + 0.5)/float(N)));\n\tvec4 row_2 = texture2D(A, vec2((row_t * float(M))/float(M + mpad), (col + 1.5)/float(N)));\n\tvec4 row_3 = texture2D(A, vec2((row_t * float(M))/float(M + mpad), (col + 2.5)/float(N)));\n\tvec4 row_4 = texture2D(A, vec2((row_t * float(M))/float(M + mpad), (col + 3.5)/float(N)));\n\n\t// package into output vector\n\tint channel = int(mod(row_t * float(M), 4.0 ));\n\n\tvec4 col_v = vec4(0.0, 0.0, 0.0, 0.0); // vec4 representing four elements in a column in the input\n\n\t// extract relevent element from each input row\n\tcol_v.r = select_index_1540259130(row_1, channel);\n\tif(npad > 0 && (col + 4.0) > float(N) ) {\n\t\t// compute elements in padded region\n\t\tif(npad < 3){\n\t\t\tcol_v.g = select_index_1540259130(row_2, channel);\n\t\t}\n\t\tif(npad < 2){\n\t\t\tcol_v.b = select_index_1540259130(row_3, channel);\n\t\t}\n\t} else {\n\t\tcol_v.g = select_index_1540259130(row_2, channel);\n\t\tcol_v.b = select_index_1540259130(row_3, channel);\n\t\tcol_v.a = select_index_1540259130(row_4, channel);\n\t}\n\n\tgl_FragColor = col_v;\n}\n",s="\nprecision highp float;\n#define GLSLIFY 1\n\nvarying vec2      outTex;\t// texture coords of row/column to calculate\nuniform sampler2D A;\t\t// texture with data from padded A\nuniform float     M;\t\t// number of rows in output\nuniform float     N;\t\t// number of columns in output\nuniform float     pad;\t\t// column padding in output\nuniform float     M_in;\t\t// number of rows in input\nuniform float     N_in;\t\t// number of columns in input\nuniform float     pad_in;\t// column padding in input\n\n/* number of input pixels\n   origin index (channel) for each\n   termination index (channel) for each\n   destination origin index (channel) for each\n */\n// select an element from a vector based on index\nfloat select_index_1540259130(vec4 v, int index){\n\tfloat val;\n\tif (index == 0) {\n\t\tval = v.r;\n\t} else if(index == 1) {\n\t\tval = v.g;\n\t} else if(index == 2) {\n\t\tval = v.b;\n\t} else if(index == 3){\n\t\tval = v.a;\n\t} else {\n\t\t// should never be here\n\t\tval = 0.0;\n\t}\n\n\treturn val;\n}\n\n// set pad values to 0.0, if in padded region of output texture\nvoid fix_pad_1604150559(inout vec4 v, int pad){\n\tv.a = 0.0;\n\tif(pad == 2){\n\t\tv.b = 0.0;\n\t} else if(pad == 3){\n\t\tv.b = 0.0;\n\t\tv.g = 0.0;\n\t}\n}\n\n// translate a linear index into x, y coordinates for a matrix\nvec2 linear_index_coords_1117569599(float linear_index, float row_length){\n\tvec2 coords;\n\n\tcoords.x = floor(mod(linear_index + 0.5, row_length)); // column\n\tcoords.y = floor((linear_index + 0.5) / row_length); // row\n\n\treturn coords;\n}\n\nvoid main(void) {\n\n\t// get the implied row and column from .y and .x of passed (output)\n\t// texture coordinate. These map directly to input texture space when\n\t// the relevant dimensions are the same.\n\tfloat row_t = outTex.y;\n\tfloat col_t = outTex.x;\n\n\tfloat row = floor(row_t * M);\n\tfloat col_0 = (col_t * (N + pad) - 2.0); // index of first element in pixel (matrix space)\n\t//float col_0 = floor(col_t * (N + pad)/4.0)*4.0; // index of first element in pixel (matrix space)\n\tfloat lin_index_0 = row * N + col_0; // linearized index of first element in pixel in output\n\n\tvec4 pixel_in = vec4(0.0, 0.0, 0.0, 0.0);\n\tvec4 result = vec4(0.0, 0.0, 0.0, 0.0);\n\tvec2 coords = linear_index_coords_1117569599(lin_index_0, N_in);\n\tvec2 ncoords;\n\tint channel_in = int(mod(coords.x, 4.0));\n\n\tvec2 scale_in = vec2(1.0/(N_in + pad_in), 1.0/M_in); // scale from matrix to input texture coords\n\tvec2 offset_in = vec2(0.5, 0.5); // move away from edge of pixel\n\tconst vec2 pixel_scale = vec2(1.0/4.0, 1.0); // scale from matrix to pixel coords\n\n\tpixel_in = texture2D(A, (coords + offset_in) * scale_in);\n\n\t// go through channels for current output pixel\n\tfor(int channel = 0; channel < 4; channel++){\n\n\t\t// are we on a new input pixel?\n\t\tncoords = linear_index_coords_1117569599(lin_index_0 + float(channel), N_in);\n\t\tif(floor(ncoords * pixel_scale) != floor(coords * pixel_scale)){\n\t\t\tcoords = ncoords;\n\t\t\tpixel_in = texture2D(A, (coords + offset_in) * scale_in);\n\t\t\tchannel_in = 0;\n\t\t}\n\n\t\tif(channel == 0){\n\t\t\tresult.r = select_index_1540259130(pixel_in, channel_in);\n\t\t} else if(channel == 1){\n\t\t\tresult.g = select_index_1540259130(pixel_in, channel_in);\n\t\t} else if(channel == 2){\n\t\t\tresult.b = select_index_1540259130(pixel_in, channel_in);\n\t\t} else {\n\t\t\tresult.a = select_index_1540259130(pixel_in, channel_in);\n\t\t}\n\n\t\tchannel_in++;\n\t}\n\n\t// are we in the padded (output) region?\n\tif(pad > 0.0 && col_0 + 3.5 > N ) {\n\t\tfix_pad_1604150559(result, int(pad));\n\t}\n\n\tgl_FragColor = result;\n}\n",u="\nprecision highp float;\n#define GLSLIFY 1\n\nvarying vec2      outTex;\t// texture coords of row/column to calculate\nuniform sampler2D A;\t\t// texture with data from padded A\nuniform float     M;\t\t// number of rows in output\nuniform float     N;\t\t// number of columns in output\nuniform float     M_in;\t\t// number of rows in input\nuniform float     N_in;\t\t// number of columns in input\n\n// translate a linear index into x, y coordinates for a matrix\nvec2 linear_index_coords_1540259130(float linear_index, float row_length){\n\tvec2 coords;\n\n\tcoords.x = floor(mod(linear_index + 0.5, row_length)); // column\n\tcoords.y = floor((linear_index + 0.5) / row_length); // row\n\n\treturn coords;\n}\n\nvoid main(void) {\n\n\t// get the implied row and column from .y and .x of passed (output)\n\t// texture coordinate. These map directly to input texture space when\n\t// the relevant dimensions are the same.\n\tfloat row_t = outTex.y;\n\tfloat col_t = outTex.x;\n\n\tfloat row = floor(row_t * M);\n\tfloat col_0 = floor(col_t * N - 1.5); // index of first element in pixel (matrix space)\n\tfloat lin_index_0 = row * N + col_0; // linearized index of first element in pixel in output\n\n\tvec4 result;\n\tvec2 coords = linear_index_coords_1540259130(lin_index_0, N_in);\n\n\tvec2 scale_in = vec2(1.0/N_in, 1.0/M_in); // scale from matrix to input texture coords\n\tvec2 offset_in = vec2(0.5, 0.5); // move away from edge of pixel\n\n\tresult = texture2D(A, (coords + offset_in) * scale_in);\n\n\tgl_FragColor = result;\n}\n",l="precision highp float;\n#define GLSLIFY 1\n\nvarying vec2      outTex;\t// texture coords of row/column to calculate\nuniform sampler2D X;\t\t// texture with data from padded X\nuniform float     N;\t\t// number of columns\nuniform float     pad;\t\t// additional columns to nearest multiple of four\nuniform float     N_in;\t\t// number of columns (input)\nuniform float     pad_in;\t// additional columns to nearest multiple of four (input)\nuniform float     stride;\nuniform float     offset;   // zero or one\n\n// set pad values to 0.0, if in padded region of output texture\nvoid fix_pad_1540259130(inout vec4 v, int pad){\n\tv.a = 0.0;\n\tif(pad == 2){\n\t\tv.b = 0.0;\n\t} else if(pad == 3){\n\t\tv.b = 0.0;\n\t\tv.g = 0.0;\n\t}\n}\n\n/* join parts of two pixels into one, selecting four continguous elements\n  starting at channel.\n*/\nvoid join_pixels_1604150559(inout vec4 x, vec4 x0, vec4 x1, float channel){\n\tif(channel == 1.0){\n\t\tx.rgb = x0.gba;\n\t\tx.a = x1.r;\n\t} else if(channel == 2.0){\n\t\tx.rg = x0.ba;\n\t\tx.ba = x1.rg;\n\t} else if(channel == 3.0){\n\t\tx.r = x0.a;\n\t\tx.gba = x1.rgb;\n\t}\n}\n\nvoid main(void) {\n\n\t// get the implied row and column from .y and .x of passed (output)\n\t// texture coordinate. These map directly to input texture space when\n\t// the relevant dimensions are the same.\n\tfloat row_t = outTex.y;\n\tfloat col_t = outTex.x;\n\tfloat col = floor(col_t * (N + pad) - 1.5); // index of first element in pixel (output matrix space)\n\n\tfloat stripe = floor(col / stride);\n\tfloat sub_col = floor(mod(col, stride));\n\n\tfloat col_in = (offset + (2.0 * stripe)) * stride + sub_col;\n\n\tvec4 x;\n\tfloat channel = mod(col_in, 4.0); // channel in the input of first element in output\n\n\t// are we at the beggining of an input pixel?\n\tif(channel == 0.0){\n\t\t// yes, select the whole thing\n\t\tx = texture2D( X, vec2((col_in + 2.0 - channel) / (N_in + pad_in) , row_t));\n\t} else {\n\t\t// no, select parts from two pixels\n\t\tvec4 x0, x1;\n\t\tx0 = texture2D( X, vec2((col_in + 2.0 - channel) / (N_in + pad_in) , row_t));\n\t\tx1 = texture2D( X, vec2((col_in + 6.0 - channel) / (N_in + pad_in) , row_t));\n\n\t\tjoin_pixels_1604150559(x, x0, x1, channel);\n\n\t}\n\n\t// fix padded region\n\tif(pad > 0.0 && col + 4.0 > N ) {\n\t\tfix_pad_1540259130(x, int(pad));\n\t}\n\n\tgl_FragColor = x;\n}\n",c="precision highp float;\n#define GLSLIFY 1\n\nvarying vec2      outTex;\t// texture coords of row/column to calculate\nuniform sampler2D A;\t\t// texture with data from padded A\nuniform sampler2D B;\t\t// texture with data from padded B\nuniform float     N_in;\t\t// number of columns\nuniform float     pad_in;\t// additional columns to nearest multiple of four\nuniform float     stride;\n\n// set pad values to 0.0, if in padded region of output texture\nvoid fix_pad_1540259130(inout vec4 v, int pad){\n\tv.a = 0.0;\n\tif(pad == 2){\n\t\tv.b = 0.0;\n\t} else if(pad == 3){\n\t\tv.b = 0.0;\n\t\tv.g = 0.0;\n\t}\n}\n\nvoid main(void) {\n\n\t// get the implied row and column from .y and .x of passed (output)\n\t// texture coordinate. These map directly to input texture space when\n\t// the relevant dimensions are the same.\n\tfloat row_t = outTex.y;\n\tfloat col_t = outTex.x;\n\tfloat N = N_in * 2.0;\n\tfloat pad = mod(N, 4.0);\n\tfloat col = floor(col_t * (N + pad) - 1.5); // index of first element in pixel (output matrix space)\n\n\tfloat stripe = floor(col / stride);\n\tfloat sub_col = floor(mod(col, stride));\n\n\tfloat tex_select = mod(stripe, 2.0);\n\tfloat col_in = floor(stripe / 2.0) * stride + sub_col;\n\n\tvec4 x;\n\tfloat channel = mod(col_in, 4.0); // channel in the input of first element in output\n\n\t// which input texture are we getting this pixel from?\n\tif(tex_select == 0.0){\n\t\tx = texture2D( A, vec2((col_in + 2.0) / (N_in + pad_in) , row_t));\n\t} else {\n\t\tx = texture2D( B, vec2((col_in + 2.0) / (N_in + pad_in) , row_t));\n\t}\n\n\t// fix padded region\n\tif(pad > 0.0 && col + 4.0 > N ) {\n\t\tfix_pad_1540259130(x, int(pad));\n\t}\n\n\tgl_FragColor = x;\n}\n";this.encode_program=this.createProgram(i),this.transpose_program=this.createProgram(a),this.reshape_program=this.createProgram(s),this.reshape_simple_program=this.createProgram(u),this.submatrix_program=this.createProgram(l),this.combine_program=this.createProgram(c)}e.exports=r,r.COMPONENTS_PER_TEXEL=4,r.POSITION_UNIFORM_NAME="pos",r.TEXTURE_UNIFORM_NAME="tex",r.prototype.encode=function(t,e,n,r){this.program=this.encode_program,this.selectProgram(this.program);var o=this.getPad(e),i=this.context.getUniformLocation(this.program,"N"),a=this.context.getUniformLocation(this.program,"pad");this.context.uniform1i(i,e),this.context.uniform1i(a,o),this.bindInputTexture(n,this.context.TEXTURE0,"A"),this.bindOutputTexture(t,e,r),this.context.drawElements(this.context.TRIANGLES,6,this.context.UNSIGNED_SHORT,0),this.unbindInputTexture(this.context.TEXTURE0)},r.prototype.transpose=function(t,e,n,r){this.program=this.transpose_program,this.selectProgram(this.program);var o=this.getPad(e),i=this.getPad(t),a=this.context.getUniformLocation(this.program,"N"),s=this.context.getUniformLocation(this.program,"npad"),u=this.context.getUniformLocation(this.program,"M"),l=this.context.getUniformLocation(this.program,"mpad");this.context.uniform1i(a,t),this.context.uniform1i(s,i),this.context.uniform1i(u,e),this.context.uniform1i(l,o),this.bindInputTexture(n,this.context.TEXTURE0,"A"),this.bindOutputTexture(e,(t+i)/4,r),this.context.drawElements(this.context.TRIANGLES,6,this.context.UNSIGNED_SHORT,0),this.unbindInputTexture(this.context.TEXTURE0)},r.prototype.reshape=function(t,e,n,r,o,i){var a=this.getPad(e),s=this.getPad(r);0==a&&0==s?this.program=this.reshape_simple_program:(this.program=this.reshape_program,console.log("# WARNING: using slow reshape shader.")),this.selectProgram(this.program);var u=this.context.getUniformLocation(this.program,"M"),l=this.context.getUniformLocation(this.program,"N"),c=this.context.getUniformLocation(this.program,"pad"),f=this.context.getUniformLocation(this.program,"M_in"),p=this.context.getUniformLocation(this.program,"N_in"),h=this.context.getUniformLocation(this.program,"pad_in");this.context.uniform1f(u,n),this.context.uniform1f(l,r),this.context.uniform1f(c,s),this.context.uniform1f(f,t),this.context.uniform1f(p,e),this.context.uniform1f(h,a),this.bindInputTexture(o,this.context.TEXTURE0,"A"),this.bindOutputTexture(n,(r+s)/4,i),this.context.drawElements(this.context.TRIANGLES,6,this.context.UNSIGNED_SHORT,0),this.unbindInputTexture(this.context.TEXTURE0)},r.prototype.submatrix=function(t,e,n,r,o,i,a){this.program=this.submatrix_program,this.selectProgram(this.program);var s=this.getPad(t),u=this.getPad(n),l=this.context.getUniformLocation(this.program,"N"),c=this.context.getUniformLocation(this.program,"pad"),f=this.context.getUniformLocation(this.program,"N_in"),p=this.context.getUniformLocation(this.program,"pad_in"),h=this.context.getUniformLocation(this.program,"offset");stride_gl=this.context.getUniformLocation(this.program,"stride"),this.context.uniform1f(l,n),this.context.uniform1f(c,u),this.context.uniform1f(f,t),this.context.uniform1f(p,s),this.context.uniform1f(stride_gl,r),this.context.uniform1f(h,o),this.bindInputTexture(i,this.context.TEXTURE0,"X"),this.bindOutputTexture(e,(n+u)/4,a),this.context.drawElements(this.context.TRIANGLES,6,this.context.UNSIGNED_SHORT,0),this.unbindInputTexture(this.context.TEXTURE0)},r.prototype.combine=function(t,e,n,r,o,i){this.program=this.combine_program,this.selectProgram(this.program);var a=2*e,s=this.getPad(e),u=this.getPad(a),l=this.context.getUniformLocation(this.program,"N_in"),c=this.context.getUniformLocation(this.program,"pad_in"),f=this.context.getUniformLocation(this.program,"stride");this.context.uniform1f(l,e),this.context.uniform1f(c,s),this.context.uniform1f(f,n),this.bindInputTexture(r,this.context.TEXTURE0,"A"),this.bindInputTexture(o,this.context.TEXTURE1,"B"),this.bindOutputTexture(t,(a+u)/4,i),this.context.drawElements(this.context.TRIANGLES,6,this.context.UNSIGNED_SHORT,0),this.unbindInputTexture(this.context.TEXTURE0)},r.prototype.bindInputTexture=function(t,e,n){var r=this.context,o=this.program;r.activeTexture(e),r.bindTexture(r.TEXTURE_2D,t);var i=r.getUniformLocation(o,n);r.uniform1i(i,e-r.TEXTURE0)},r.prototype.createProgram=function(t){var e,n=this.context;if(e=n.createShader(n.FRAGMENT_SHADER),n.shaderSource(e,t),n.compileShader(e),0==n.getShaderParameter(e,n.COMPILE_STATUS))throw new Error(n.getShaderInfoLog(e));var r=n.createProgram();return n.attachShader(r,this.vertexShader),n.attachShader(r,e),n.linkProgram(r),r},r.prototype.selectProgram=function(t){var e=this.context;e.useProgram(t),this.bindVertices(t)},r.prototype.bindVertices=function(t){var e=this.context,n=t,o=e.getAttribLocation(n,r.POSITION_UNIFORM_NAME),i=e.createBuffer();e.bindBuffer(e.ARRAY_BUFFER,i);var a=[-1,-1,0,1,-1,0,1,1,0,-1,1,0];e.bufferData(e.ARRAY_BUFFER,new Float32Array(a),e.STATIC_DRAW),e.vertexAttribPointer(o,3,e.FLOAT,!1,0,0),e.enableVertexAttribArray(o);var s=e.getAttribLocation(n,r.TEXTURE_UNIFORM_NAME),u=e.createBuffer();e.bindBuffer(e.ARRAY_BUFFER,u);var l=[0,0,1,0,1,1,0,1];e.bufferData(e.ARRAY_BUFFER,new Float32Array(l),e.STATIC_DRAW),e.vertexAttribPointer(s,2,e.FLOAT,!1,0,0),e.enableVertexAttribArray(s);var c=e.createBuffer();e.bindBuffer(e.ELEMENT_ARRAY_BUFFER,c);var f=[0,1,2,0,2,3];e.bufferData(e.ELEMENT_ARRAY_BUFFER,new Uint16Array(f),e.STATIC_DRAW)},r.prototype.createDataTexture=function(t,e,n){var o=this.context,i=[0,0,0,0],a=e%r.COMPONENTS_PER_TEXEL,s=0==a?0:r.COMPONENTS_PER_TEXEL-a,u=o.createTexture();if(o.bindTexture(o.TEXTURE_2D,u),0==s||null==n||"undefined"==typeof n)o.texImage2D(o.TEXTURE_2D,0,o.RGBA,(e+s)/r.COMPONENTS_PER_TEXEL,t,0,o.RGBA,o.FLOAT,n);else{o.texImage2D(o.TEXTURE_2D,0,o.RGBA,(e+s)/r.COMPONENTS_PER_TEXEL,t,0,o.RGBA,o.FLOAT,null);for(var l,c,f=e-a,p=f/r.COMPONENTS_PER_TEXEL,h=0,d=new Float32Array(i),v=0;t>v;v++)h=v*e,full_texel_row_end=h+f,l=new Float32Array(n.buffer,h*n.BYTES_PER_ELEMENT,f),f>0&&o.texSubImage2D(o.TEXTURE_2D,0,0,v,p,1,o.RGBA,o.FLOAT,l),c=new Float32Array(n.buffer,full_texel_row_end*n.BYTES_PER_ELEMENT,a),d.set(c),o.texSubImage2D(o.TEXTURE_2D,0,p,v,1,1,o.RGBA,o.FLOAT,d)}return o.texParameteri(o.TEXTURE_2D,o.TEXTURE_WRAP_S,o.CLAMP_TO_EDGE),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_WRAP_T,o.CLAMP_TO_EDGE),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_MAG_FILTER,o.NEAREST),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_MIN_FILTER,o.NEAREST),o.bindTexture(o.TEXTURE_2D,null),u},r.prototype.createOutputTexture=function(t,e){var n=this.context,r=this.getPad(e),o=n.createTexture();return n.bindTexture(n.TEXTURE_2D,o),n.texImage2D(n.TEXTURE_2D,0,n.RGBA,e+r,t,0,n.RGBA,n.UNSIGNED_BYTE,null),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_WRAP_S,n.CLAMP_TO_EDGE),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_WRAP_T,n.CLAMP_TO_EDGE),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_MAG_FILTER,n.NEAREST),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_MIN_FILTER,n.NEAREST),n.bindTexture(n.TEXTURE_2D,null),o},r.prototype.bindOutputTexture=function(t,e,n){var r=this.context;if(this.canvas.height=t,this.canvas.width=e,r.viewport(0,0,e,t),this.framebuffer=this.framebuffer||r.createFramebuffer(),r.bindFramebuffer(r.FRAMEBUFFER,this.framebuffer),r.framebufferTexture2D(r.FRAMEBUFFER,r.COLOR_ATTACHMENT0,r.TEXTURE_2D,n,0),r.checkFramebufferStatus(r.FRAMEBUFFER)!=r.FRAMEBUFFER_COMPLETE)throw new Error("Bound framebuffer is not complete.");return this.framebuffer},r.prototype.unbindInputTexture=function(t){var e=this.context;e.activeTexture(t),e.bindTexture(e.TEXTURE_2D,null)},r.prototype.readData=function(t,e){var n=this.context;return rawbuffer=new ArrayBuffer(t*e*Float32Array.BYTES_PER_ELEMENT),prod=new Uint8Array(rawbuffer),n.readPixels(0,0,e,t,n.RGBA,n.UNSIGNED_BYTE,prod),rawbuffer},r.prototype.getPad=function(t){var e=t%r.COMPONENTS_PER_TEXEL,n=0==e?0:r.COMPONENTS_PER_TEXEL-e;return n}},{}]},{},[1])(1)})},function(t,e,n){t.exports=n(206)},function(t,e,n){"use strict";function r(t){var e=new a(t),n=i(a.prototype.request,e);return 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Error(n.name+" [Deconvolution2D layer] Invalid borderMode.");if(n.borderMode=_,n.subsample=y,"tf"!==w&&"th"!==w)throw new Error(n.name+" [Deconvolution2D layer] Only tf and th dim ordering are allowed.");return n.dimOrdering=w,n.bias=E,n.params=n.bias?["W","b"]:["W"],n.gpu&&weblas&&(n._useWeblas=!0,n._pipelineEnabled=!1),n}return s(e,t),l(e,[{key:"setWeights",value:function(t){"th"===this.dimOrdering&&(t[0].tensor=t[0].tensor.transpose(2,3,1,0)),c(e.prototype.__proto__||Object.getPrototypeOf(e.prototype),"setWeights",this).call(this,t),this._wRowsMat=this._w2row(),this._useWeblas&&(this._wRowsMat.createWeblasTensor(),this._wRowsMat._gpuMaxSizeExceeded||(this._wRowsMat.weblasTensor=this._wRowsMat.weblasTensor.transpose()))}},{key:"_calcOutputPadding",value:function(t){var e=t.tensor.shape[0],n=t.tensor.shape[1],r=this.kernelShape[1],o=this.kernelShape[2],i=this.outputShape[0],a=this.outputShape[1],s="same"===this.borderMode?Math.max(0,Math.floor((e-1)*this.subsample[0]+r-i)):0,u="same"===this.borderMode?Math.max(0,Math.floor((n-1)*this.subsample[1]+o-a)):0,l=Math.floor(s/2),c=s-l,f=Math.floor(u/2),p=u-f;this.outputPadding=[l,c,f,p]}},{key:"_im2col",value:function(t){for(var e=u(t.tensor.shape,3),n=e[0],r=e[1],o=e[2],i=new d.default([],[n*r,o]),a=new d.default([],[n*r]),s=new d.default([],[n,r]),l=0;l<o;l++)g.default.assign(s.tensor,t.tensor.pick(null,null,l)),a.replaceTensorData(s.tensor.data),g.default.assign(i.tensor.pick(null,l),a.tensor);return i}},{key:"_w2row",value:function(){for(var t=u(this.weights.W.tensor.shape,4),e=t[0],n=t[1],r=t[2],o=t[3],i=new d.default([],[r,e*n*o]),a=new d.default([],[e*n*o]),s=new 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e.default=t,e}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function a(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function s(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}Object.defineProperty(e,"__esModule",{value:!0});var u=function(){function t(t,e){var n=[],r=!0,o=!1,i=void 0;try{for(var a,s=t[Symbol.iterator]();!(r=(a=s.next()).done)&&(n.push(a.value),!e||n.length!==e);r=!0);}catch(t){o=!0,i=t}finally{try{!r&&s.return&&s.return()}finally{if(o)throw i}}return n}return function(e,n){if(Array.isArray(e))return e;if(Symbol.iterator in Object(e))return t(e,n);throw new 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w=function(){},x={},E={},T=t("./thenables")(i,w),O=t("./promise_array")(i,w,T,p,r),S=t("./context")(i),P=S.create,M=t("./debuggability")(i,S),j=(M.CapturedTrace,t("./finally")(i,T)),A=t("./catch_filter")(E),C=t("./nodeback"),R=d.errorObj,k=d.tryCatch;return i.prototype.toString=function(){return"[object Promise]"},i.prototype.caught=i.prototype.catch=function(t){var e=arguments.length;if(e>1){var n,r=new Array(e-1),o=0;for(n=0;n<e-1;++n){var i=arguments[n];if(!d.isObject(i))return p("expecting an object but got A catch statement predicate "+d.classString(i));r[o++]=i}return r.length=o,t=arguments[n],this.then(void 0,A(r,t,this))}return this.then(void 0,t)},i.prototype.reflect=function(){return this._then(f,f,void 0,this,void 0)},i.prototype.then=function(t,e){if(M.warnings()&&arguments.length>0&&"function"!=typeof t&&"function"!=typeof e){var n=".then() only accepts functions but was passed: "+d.classString(t);arguments.length>1&&(n+=", "+d.classString(e)),this._warn(n)}return 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r===R&&e._rejectCallback(r.e,!0),e._isFateSealed()||e._setAsyncGuaranteed(),e},i.all=function(t){return new O(t).promise()},i.cast=function(t){var e=T(t);return e instanceof i||(e=new i(w),e._captureStackTrace(),e._setFulfilled(),e._rejectionHandler0=t),e},i.resolve=i.fulfilled=i.cast,i.reject=i.rejected=function(t){var e=new i(w);return e._captureStackTrace(),e._rejectCallback(t,!0),e},i.setScheduler=function(t){if("function"!=typeof t)throw new y("expecting a function but got "+d.classString(t));return _.setScheduler(t)},i.prototype._then=function(t,e,n,r,o){var a=void 0!==o,s=a?o:new i(w),u=this._target(),c=u._bitField;a||(s._propagateFrom(this,3),s._captureStackTrace(),void 0===r&&0!==(2097152&this._bitField)&&(r=0!==(50397184&c)?this._boundValue():u===this?void 0:this._boundTo),this._fireEvent("promiseChained",this,s));var f=l();if(0!==(50397184&c)){var p,h,v=u._settlePromiseCtx;0!==(33554432&c)?(h=u._rejectionHandler0,p=t):0!==(16777216&c)?(h=u._fulfillmentHandler0,p=e,u._unsetRejectionIsUnhandled()):(v=u._settlePromiseLateCancellationObserver,h=new b("late cancellation observer"),u._attachExtraTrace(h),p=e),_.invoke(v,u,{handler:null===f?p:"function"==typeof p&&d.domainBind(f,p),promise:s,receiver:r,value:h})}else u._addCallbacks(t,e,s,r,f);return s},i.prototype._length=function(){return 65535&this._bitField},i.prototype._isFateSealed=function(){return 0!==(117506048&this._bitField)},i.prototype._isFollowing=function(){return 67108864===(67108864&this._bitField)},i.prototype._setLength=function(t){this._bitField=this._bitField&-65536|65535&t},i.prototype._setFulfilled=function(){this._bitField=33554432|this._bitField,this._fireEvent("promiseFulfilled",this)},i.prototype._setRejected=function(){this._bitField=16777216|this._bitField,this._fireEvent("promiseRejected",this)},i.prototype._setFollowing=function(){this._bitField=67108864|this._bitField,this._fireEvent("promiseResolved",this)},i.prototype._setIsFinal=function(){this._bitField=4194304|this._bitField},i.prototype._isFinal=function(){return(4194304&this._bitField)>0},i.prototype._unsetCancelled=function(){this._bitField=this._bitField&-65537},i.prototype._setCancelled=function(){this._bitField=65536|this._bitField,this._fireEvent("promiseCancelled",this)},i.prototype._setWillBeCancelled=function(){this._bitField=8388608|this._bitField},i.prototype._setAsyncGuaranteed=function(){_.hasCustomScheduler()||(this._bitField=134217728|this._bitField)},i.prototype._receiverAt=function(t){var e=0===t?this._receiver0:this[4*t-4+3];if(e!==h)return void 0===e&&this._isBound()?this._boundValue():e},i.prototype._promiseAt=function(t){return this[4*t-4+2]},i.prototype._fulfillmentHandlerAt=function(t){return this[4*t-4+0]},i.prototype._rejectionHandlerAt=function(t){return this[4*t-4+1]},i.prototype._boundValue=function(){},i.prototype._migrateCallback0=function(t){var e=(t._bitField,t._fulfillmentHandler0),n=t._rejectionHandler0,r=t._promise0,o=t._receiverAt(0);void 0===o&&(o=h),this._addCallbacks(e,n,r,o,null)},i.prototype._migrateCallbackAt=function(t,e){var n=t._fulfillmentHandlerAt(e),r=t._rejectionHandlerAt(e),o=t._promiseAt(e),i=t._receiverAt(e);void 0===i&&(i=h),this._addCallbacks(n,r,o,i,null)},i.prototype._addCallbacks=function(t,e,n,r,o){var i=this._length();if(i>=65531&&(i=0,this._setLength(0)),0===i)this._promise0=n,this._receiver0=r,"function"==typeof t&&(this._fulfillmentHandler0=null===o?t:d.domainBind(o,t)),"function"==typeof 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this._attachExtraTrace(n),this._reject(n)}this._setFulfilled(),this._rejectionHandler0=t,(65535&e)>0&&(0!==(134217728&e)?this._settlePromises():_.settlePromises(this))}},i.prototype._reject=function(t){var e=this._bitField;if(!((117506048&e)>>>16))return this._setRejected(),this._fulfillmentHandler0=t,this._isFinal()?_.fatalError(t,d.isNode):void((65535&e)>0?_.settlePromises(this):this._ensurePossibleRejectionHandled())},i.prototype._fulfillPromises=function(t,e){for(var n=1;n<t;n++){var r=this._fulfillmentHandlerAt(n),o=this._promiseAt(n),i=this._receiverAt(n);this._clearCallbackDataAtIndex(n),this._settlePromise(o,r,i,e)}},i.prototype._rejectPromises=function(t,e){for(var n=1;n<t;n++){var r=this._rejectionHandlerAt(n),o=this._promiseAt(n),i=this._receiverAt(n);this._clearCallbackDataAtIndex(n),this._settlePromise(o,r,i,e)}},i.prototype._settlePromises=function(){var t=this._bitField,e=65535&t;if(e>0){if(0!==(16842752&t)){var 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mnist_03_decoder.json

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mnist_03_decoder_weights_metadata.json

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