/**
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* @license
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* Copyright 2020 Google LLC. 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 {env} from '../../../environment';
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import {SquaredDifference, SquaredDifferenceInputs} from '../../../kernel_names';
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import {KernelConfig} from '../../../kernel_registry';
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import {MathBackendWebGL} from '../backend_webgl';
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import {BinaryOpProgram} from '../binaryop_gpu';
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import {BinaryOpPackedProgram} from '../binaryop_packed_gpu';
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export const squaredDifferenceConfig: KernelConfig = {
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kernelName: SquaredDifference,
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backendName: 'webgl',
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kernelFunc: ({inputs, backend}) => {
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const {a, b} = inputs as SquaredDifferenceInputs;
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const SQUARED_DIFFERENCE = 'return (a - b) * (a - b);';
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const webGLBackend = backend as MathBackendWebGL;
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const program = env().getBool('WEBGL_PACK_BINARY_OPERATIONS') ?
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new BinaryOpPackedProgram(SQUARED_DIFFERENCE, a.shape, b.shape) :
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new BinaryOpProgram(SQUARED_DIFFERENCE, a.shape, b.shape);
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return webGLBackend.compileAndRun(program, [a, b]);
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}
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};
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