/**
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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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import {GPGPUProgram} from './gpgpu_math';
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export class OneHotProgram implements GPGPUProgram {
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variableNames = ['indices'];
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outputShape: number[];
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userCode: string;
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// Caching uniform location for speed.
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seedLoc: WebGLUniformLocation;
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constructor(
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numIndices: number, depth: number, onValue: number, offValue: number) {
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this.outputShape = [numIndices, depth];
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this.userCode = `
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void main() {
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ivec2 coords = getOutputCoords();
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int index = round(getIndices(coords.x));
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setOutput(mix(float(${offValue}), float(${onValue}),
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float(index == coords.y)));
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}
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`;
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}
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}
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