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80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
/* ----------------------------------------------------------------------
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* Project: CMSIS DSP Library
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* Title: Unzip.h
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* Description: Node to unzip a stream of pair
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*
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* $Date: 30 July 2021
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* $Revision: V1.10.0
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*
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* Target Processor: Cortex-M and Cortex-A cores
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* -------------------------------------------------------------------- */
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/*
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* Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved.
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* 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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* 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, WITHOUT
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* 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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#ifndef _UNZIP_H_
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#define _UNZIP_H_
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/*
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Unzip a stream a1 a2 b1 b2 c1 c2 ...
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Into 2 streams:
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a1 b1 c1 ...
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a2 b2 c2 ...
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*/
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template<typename IN, int inputSize,typename OUT1,int output1Size,typename OUT2,int output2Size>
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class Unzip;
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template<typename IN, int inputSize,int output1Size,int output2Size>
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class Unzip<IN,inputSize,IN,output1Size,IN,output2Size>: public GenericNode12<IN,inputSize,IN,output1Size,IN,output2Size>
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{
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public:
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Unzip(FIFOBase<IN> &src,FIFOBase<IN> &dst1,FIFOBase<IN> &dst2):
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GenericNode12<IN,inputSize,IN,output1Size,IN,output2Size>(src,dst1,dst2){};
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int prepareForRunning() override
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{
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if (this->willOverflow1() ||
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this->willOverflow2() ||
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this->willUnderflow()
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)
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{
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return(CG_SKIP_EXECUTION_ID_CODE); // Skip execution
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}
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return(0);
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};
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/*
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2*outputSize1 == 2*outSize2 == inputSize
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*/
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int run() override
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{
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IN *a=this->getReadBuffer();
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IN *b1=this->getWriteBuffer1();
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IN *b2=this->getWriteBuffer2();
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for(int i = 0; i<output1Size; i++)
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{
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b1[i] =(IN)a[2*i];
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b2[i] =(IN)a[2*i+1];
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}
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return(0);
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};
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};
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#endif |