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GrMultiply.h

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00001 /* -*- Mode: c++ -*- */ 00002 /* 00003 * Copyright 2001 Free Software Foundation, Inc. 00004 * 00005 * This file is part of GNU Radio 00006 * 00007 * GNU Radio is free software; you can redistribute it and/or modify 00008 * it under the terms of the GNU General Public License as published by 00009 * the Free Software Foundation; either version 2, or (at your option) 00010 * any later version. 00011 * 00012 * GNU Radio is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 * GNU General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU General Public License 00018 * along with GNU Radio; see the file COPYING. If not, write to 00019 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, 00020 * Boston, MA 02111-1307, USA. 00021 */ 00022 00023 00024 #ifndef _GRMULTIPLY_H_ 00025 #define _GRMULTIPLY_H_ 00026 00027 #include <VrSigProc.h> 00028 00029 template<class iType,class oType> 00030 class GrMultiply : public VrSigProc { 00031 public: 00032 virtual const char *name() { return "GrMultiply"; } 00033 virtual int work(VrSampleRange output, void *o[], 00034 VrSampleRange inputs[], void *i[]); 00035 virtual void initialize() { 00036 #if 0 00037 //work on 8-units blocks 00038 setHistory(8); 00039 setOutputSize(8); 00040 #endif 00041 }; 00042 GrMultiply(); 00043 }; 00044 00045 template<class iType,class oType> int 00046 GrMultiply<iType,oType>::work(VrSampleRange output, void *ao[], 00047 VrSampleRange inputs[], void *ai[]) 00048 { 00049 iType **i = (iType **)ai; 00050 oType **o = (oType **)ao; 00051 int size = output.size; 00052 int ni = getNumberInputs(); 00053 oType temp; 00054 00055 while(size-- > 0) { 00056 { 00057 temp = *i[0]++; 00058 int j=1; 00059 while(j < ni) 00060 temp *= *i[j++]++; 00061 *o[0]++ = temp; 00062 } 00063 } 00064 return output.size; 00065 } 00066 00067 template<class iType,class oType> 00068 GrMultiply<iType,oType>::GrMultiply() 00069 : VrSigProc(1, sizeof(iType), sizeof(oType)) 00070 { 00071 } 00072 #endif

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