@tensorflow/tfjs-core
Version:
Hardware-accelerated JavaScript library for machine intelligence
45 lines • 2.06 kB
JavaScript
;
/**
* @license
* Copyright 2017 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 ReverseProgram = /** @class */ (function () {
function ReverseProgram(xShape, axis) {
this.variableNames = ['x'];
var rank = xShape.length;
if (rank > 4) {
throw new Error("WebGL backend: Reverse of rank-" + rank + " tensor is not yet supported");
}
this.outputShape = xShape;
if (rank === 1) {
this.userCode = "\n void main() {\n int coord = getOutputCoords();\n setOutput(getX(" + xShape[0] + " - coord - 1));\n }\n ";
return;
}
var getInCoord = function (i) {
if (axis.indexOf(i) !== -1 && xShape[i] !== 1) {
return xShape[i] + " - coords[" + i + "] - 1";
}
return "coords[" + i + "]";
};
var inCoords = xShape.map(function (_, i) { return getInCoord(i); }).join(',');
var type = shader_compiler_1.getCoordsDataType(rank);
this.userCode = "\n void main() {\n " + type + " coords = getOutputCoords();\n setOutput(getX(" + inCoords + "));\n }\n ";
}
return ReverseProgram;
}());
exports.ReverseProgram = ReverseProgram;
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