@tensorflow/tfjs-core/dist-es6/kernels/webgl/tile_gpu.js

Hardware-accelerated JavaScript library for machine intelligence

import { getCoordsDataType } from './shader_compiler';
var TileProgram = (function () {
    function TileProgram(aShape, reps) {
        this.variableNames = ['A'];
        var outputShape = new Array(aShape.length);
        for (var i = 0; i < outputShape.length; i++) {
            outputShape[i] = aShape[i] * reps[i];
        }
        this.outputShape = outputShape;
        this.rank = outputShape.length;
        var dtype = getCoordsDataType(this.rank);
        var sourceCoords = getSourceCoords(aShape);
        this.userCode = "\n      void main() {\n        " + dtype + " resRC = getOutputCoords();\n        setOutput(getA(" + sourceCoords + "));\n      }\n    ";
    }
    return TileProgram;
}());
export { TileProgram };
function getSourceCoords(aShape) {
    var rank = aShape.length;
    if (rank > 4) {
        throw Error("Tile for rank " + rank + " is not yet supported");
    }
    if (rank === 1) {
        return "imod(resRC, " + aShape[0] + ")";
    }
    var currentCoords = ['resRC.x', 'resRC.y', 'resRC.z', 'resRC.w'];
    var sourceCoords = [];
    for (var i = 0; i < aShape.length; i++) {
        sourceCoords.push("imod(" + currentCoords[i] + ", " + aShape[i] + ")");
    }
    return sourceCoords.join();
}
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