@tensorflow/tfjs-core
Version:
Hardware-accelerated JavaScript library for machine intelligence
66 lines • 2.86 kB
JavaScript
;
/**
* @license
* Copyright 2018 Google Inc. All Rights Reserved.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* =============================================================================
*/
Object.defineProperty(exports, "__esModule", { value: true });
var shader_compiler_1 = require("./shader_compiler");
var CumSumProgram = /** @class */ (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 " + shader_compiler_1.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;
}());
exports.CumSumProgram = 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