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GrPAMMod.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 _GRPAMMOD_H_ 00025 #define _GRPAMMOD_H_ 00026 00027 #include <VrSigProc.h> 00028 #include <vector> 00029 00030 using std::vector; 00031 00032 template<class iType,class oType> 00033 class GrPAMMod : public VrSigProc { 00034 protected: 00035 vector<oType> constellation; 00036 public: 00037 virtual const char *name() { return "GrPAMMod"; } 00038 virtual int work(VrSampleRange output, void *o[], 00039 VrSampleRange inputs[], void *i[]); 00040 GrPAMMod(int bits); 00041 }; 00042 00043 template<class iType,class oType> int 00044 GrPAMMod<iType,oType>::work(VrSampleRange output, void *ao[], 00045 VrSampleRange inputs[], void *ai[]) 00046 { 00047 iType **i = (iType **)ai; 00048 oType **o = (oType **)ao; 00049 int size = output.size; 00050 00051 while(size-- > 0) { 00052 { 00053 *o[0]++ = constellation[*i[0]++]; 00054 } 00055 } 00056 return output.size; 00057 } 00058 00059 template<class iType,class oType> 00060 GrPAMMod<iType,oType>::GrPAMMod(int bits) 00061 : VrSigProc(1, sizeof(iType), sizeof(oType)) 00062 { 00063 constellation.resize(1<<bits); 00064 for(int i=0; i< ((1<<bits) ); i++) 00065 constellation[i] = -(1<<bits) + 2*i + 1; // May need to adjust this order 00066 } 00067 #endif

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