@tensorflow/tfjs-core
Version:
Hardware-accelerated JavaScript library for machine intelligence
37 lines • 1.78 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
var shader_compiler_1 = require("./shader_compiler");
var StridedSliceProgram = (function () {
function StridedSliceProgram(begin, strides, size, shrinkAxis) {
this.variableNames = ['x'];
var shape = size.filter(function (v, index) { return shrinkAxis.indexOf(index) === -1; });
this.outputShape = shape;
var rank = size.length;
var inputDtype = shader_compiler_1.getCoordsDataType(size.length);
var dtype = shader_compiler_1.getCoordsDataType(shape.length);
var newCoords = '';
if (rank === 1) {
newCoords = 'coords * strides + begin';
}
else {
var outputAxis_1 = 0;
newCoords =
size.map(function (_, i) {
if (shrinkAxis.indexOf(i) === -1) {
outputAxis_1++;
return shape.length === 1 ?
"coords * strides[" + i + "] + begin[" + i + "]" :
"coords[" + (outputAxis_1 - 1) + "] * strides[" + i + "] + begin[" + i + "]";
}
else {
return "begin[" + i + "]";
}
})
.join(',');
}
this.userCode = "\n " + inputDtype + " begin = " + inputDtype + "(" + begin + ");\n " + inputDtype + " strides = " + inputDtype + "(" + strides + ");\n\n void main() {\n " + dtype + " coords = getOutputCoords();\n setOutput(getX(" + newCoords + "));\n }\n ";
}
return StridedSliceProgram;
}());
exports.StridedSliceProgram = StridedSliceProgram;
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