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Complex.ts
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Complex.ts
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/**
* @license
* Copyright 2020 Google LLC. 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.
* =============================================================================
*/
import {Complex, ComplexInputs, KernelConfig, KernelFunc, TensorInfo, TypedArray} from '@tensorflow/tfjs-core';
import {MathBackendCPU} from '../backend_cpu';
export function complex(args: {inputs: ComplexInputs, backend: MathBackendCPU}):
TensorInfo {
const {inputs, backend} = args;
const {real, imag} = inputs;
const realVals = backend.data.get(real.dataId).values as TypedArray;
const imagVals = backend.data.get(imag.dataId).values as TypedArray;
const complexInfo = backend.makeTensorInfo(real.shape, 'complex64');
const complex = backend.data.get(complexInfo.dataId);
// The complex tensor owns the underlying real and imag tensorInfos, only the
// complex tensor tracks refCount, when complexData is disposed the
// underlying tensorData will be disposed.
complex.complexTensorInfos = {
real: backend.makeTensorInfo(real.shape, 'float32', realVals),
imag: backend.makeTensorInfo(imag.shape, 'float32', imagVals)
};
return complexInfo;
}
export const complexConfig: KernelConfig = {
kernelName: Complex,
backendName: 'cpu',
kernelFunc: complex as unknown as KernelFunc
};