"use strict";
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/**
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* @license
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* Copyright 2017 Google Inc. All Rights Reserved.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* =============================================================================
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*/
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Object.defineProperty(exports, "__esModule", { value: true });
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var shader_compiler_1 = require("./shader_compiler");
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var ReverseProgram = /** @class */ (function () {
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function ReverseProgram(xShape, axis) {
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this.variableNames = ['x'];
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var rank = xShape.length;
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if (rank > 4) {
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throw new Error("WebGL backend: Reverse of rank-" + rank + " tensor is not yet supported");
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}
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this.outputShape = xShape;
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if (rank === 1) {
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this.userCode = "\n void main() {\n int coord = getOutputCoords();\n setOutput(getX(" + xShape[0] + " - coord - 1));\n }\n ";
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return;
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}
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var getInCoord = function (i) {
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if (axis.indexOf(i) !== -1 && xShape[i] !== 1) {
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return xShape[i] + " - coords[" + i + "] - 1";
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}
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return "coords[" + i + "]";
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};
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var inCoords = xShape.map(function (_, i) { return getInCoord(i); }).join(',');
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var type = shader_compiler_1.getCoordsDataType(rank);
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this.userCode = "\n void main() {\n " + type + " coords = getOutputCoords();\n setOutput(getX(" + inCoords + "));\n }\n ";
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}
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return ReverseProgram;
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}());
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exports.ReverseProgram = ReverseProgram;
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//# sourceMappingURL=reverse_gpu.js.map
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