/**
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* @license
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* Copyright 2019 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 AddNPackedProgram implements GPGPUProgram {
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variableNames: string[];
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outputShape: number[] = [];
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userCode: string;
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packedInputs = true;
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packedOutput = true;
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constructor(outputShape: number[], shapes: number[][]) {
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this.outputShape = outputShape;
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this.variableNames = shapes.map((_, i) => `T${i}`);
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const snippets: string[] = [];
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// Get target elements from every input tensor.
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this.variableNames.forEach(variable => {
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snippets.push(`vec4 v${variable} = get${variable}AtOutCoords();`);
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});
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// Calculate the sum of all elements.
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const operation = this.variableNames
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.map(variable => {
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return `v${variable}`;
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})
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.join(' + ');
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this.userCode = `
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void main() {
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${snippets.join('\n ')}
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vec4 result = ${operation};
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setOutput(result);
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}
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`;
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}
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}
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