@tensorflow/tfjs-core
Version:
Hardware-accelerated JavaScript library for machine intelligence
48 lines • 2.04 kB
JavaScript
import { getCoordsDataType } from './shader_compiler';
var CumSumProgram = (function () {
function CumSumProgram(shape, exclusive, reverse) {
this.variableNames = ['x'];
this.outputShape = shape;
var rank = shape.length;
var finalDim = shape[shape.length - 1];
var comparator = reverse ? '<' : '>';
this.userCode = "\n int getIndex(int i) {\n " + (reverse ? "return " + finalDim + " -i - 1;" : 'return i;') + "\n }\n\n void main() {\n " + getCoordsDataType(rank) + " coords = getOutputCoords();\n int end = " + getFinalCoord(rank, 'coords') + ";\n float val = 0.0;\n for (int i = " + finalDim + " - 1; i >= 0; i -= 1) {\n int idx = getIndex(i);\n if (idx " + comparator + " end) {\n continue;\n }\n if (idx == end && " + exclusive + ") {\n continue;\n }\n " + getFinalCoord(rank, 'coords') + " = idx;\n val += getX(" + getCoords(rank, 'coords') + ");\n }\n setOutput(val);\n }\n ";
}
return CumSumProgram;
}());
export { CumSumProgram };
function getCoords(rank, name) {
if (rank === 1) {
return "" + name;
}
else if (rank === 2) {
return name + ".x, " + name + ".y";
}
else if (rank === 3) {
return name + ".x, " + name + ".y, " + name + ".z";
}
else if (rank === 4) {
return name + ".x, " + name + ".y, " + name + ".z, " + name + ".w";
}
else {
throw Error("Cumulative sum for rank " + rank + " is not yet supported");
}
}
function getFinalCoord(rank, name) {
if (rank === 1) {
return "" + name;
}
else if (rank === 2) {
return name + ".y";
}
else if (rank === 3) {
return name + ".z";
}
else if (rank === 4) {
return name + ".w";
}
else {
throw Error("Cumulative sum for rank " + rank + " is not yet supported");
}
}
//# sourceMappingURL=cumsum_gpu.js.map