X-Git-Url: http://git.kpe.io/?p=ctsim.git;a=blobdiff_plain;f=libctsim%2Fprocsignal.cpp;h=1685f191857147033fa92fc0acbdab778f2cfbf4;hp=711307f1d88be1aa5887b09c490be997797c1a96;hb=5a6caa64e880f613b82e516031028d02fd127257;hpb=663448e3173a19f054952806d8f8eca2fe59ec90

diff --git a/libctsim/procsignal.cpp b/libctsim/procsignal.cpp
index 711307f..1685f19 100644
--- a/libctsim/procsignal.cpp
+++ b/libctsim/procsignal.cpp
@@ -1,15 +1,15 @@
 /*****************************************************************************
 ** File IDENTIFICATION
 ** 
-**     Name:                   filter.cpp
-**     Purpose:                Routines for signal-procesing filters
-**     Progammer: 	       Kevin Rosenberg
-**     Date Started:           Aug 1984
+**     Name:            procsignal.cpp
+**     Purpose:         Routines for processing signals and projections
+**     Progammer: 	    Kevin Rosenberg
+**     Date Started:    Aug 1984
 **
 **  This is part of the CTSim program
 **  Copyright (c) 1983-2001 Kevin Rosenberg
 **
-**  $Id: procsignal.cpp,v 1.28 2001/03/13 14:53:44 kevin Exp $
+**  $Id: procsignal.cpp,v 1.32 2001/03/30 19:17:32 kevin Exp $
 **
 **  This program is free software; you can redistribute it and/or modify
 **  it under the terms of the GNU General Public License (version 2) as
@@ -28,7 +28,7 @@
 #include "ct.h"
 
 #ifdef HAVE_WXWINDOWS
-#include "dlgezplot.h"
+#include "nographics.h"
 #endif
 
 // FilterMethod ID/Names
@@ -261,7 +261,7 @@ ProcessSignal::init (const int idFilter, const int idFilterMethod, double dBandw
       m_nFilterPoints = addZeropadFactor (m_nSignalPoints, m_iZeropad);
       m_nOutputPoints = m_nFilterPoints * m_iPreinterpolationFactor;
       
-      if (m_nFilterPoints % 2) { // Odd
+      if (isOdd (m_nFilterPoints)) { // Odd
         m_dFilterMin = -1. / (2 * m_dSignalInc);
         m_dFilterMax = 1. / (2 * m_dSignalInc);
         m_dFilterInc = (m_dFilterMax - m_dFilterMin) / (m_nFilterPoints - 1);
@@ -418,15 +418,15 @@ ProcessSignal::init (const int idFilter, const int idFilterMethod, double dBandw
   }
   
   if (m_idFilterMethod == FILTER_METHOD_RFFTW) {
-    m_realPlanForward = rfftw_create_plan (m_nFilterPoints, FFTW_REAL_TO_COMPLEX, FFTW_ESTIMATE);
-    m_realPlanBackward = rfftw_create_plan (m_nOutputPoints, FFTW_COMPLEX_TO_REAL, FFTW_ESTIMATE);
+    m_realPlanForward = rfftw_create_plan (m_nFilterPoints, FFTW_REAL_TO_COMPLEX, FFTW_ESTIMATE | FFTW_USE_WISDOM);
+    m_realPlanBackward = rfftw_create_plan (m_nOutputPoints, FFTW_COMPLEX_TO_REAL, FFTW_ESTIMATE | FFTW_USE_WISDOM);
     m_adRealFftInput = new fftw_real [ m_nFilterPoints ];
     m_adRealFftSignal = new fftw_real [ m_nOutputPoints ];
     for (i = 0; i < m_nFilterPoints; i++) 
       m_adRealFftInput[i] = 0;
   } else if (m_idFilterMethod == FILTER_METHOD_FFTW) {
-    m_complexPlanForward = fftw_create_plan (m_nFilterPoints, FFTW_FORWARD, FFTW_ESTIMATE);
-    m_complexPlanBackward = fftw_create_plan (m_nOutputPoints, FFTW_BACKWARD, FFTW_ESTIMATE);
+    m_complexPlanForward = fftw_create_plan (m_nFilterPoints, FFTW_FORWARD,  FFTW_ESTIMATE | FFTW_USE_WISDOM);
+    m_complexPlanBackward = fftw_create_plan (m_nOutputPoints, FFTW_BACKWARD,  FFTW_ESTIMATE | FFTW_USE_WISDOM);
     m_adComplexFftInput = new fftw_complex [ m_nFilterPoints ];
     m_adComplexFftSignal = new fftw_complex [ m_nOutputPoints ];
     for (i = 0; i < m_nFilterPoints; i++) 
@@ -871,9 +871,11 @@ ProcessSignal::addZeropadFactor (int n, int iZeropad)
   if (iZeropad > 0) {
     double dLogBase2 = log(n) / log(2);
     int iLogBase2 = static_cast<int>(floor (dLogBase2));
-    if (dLogBase2 != floor(dLogBase2))
-      iLogBase2++;   // raise up to next power of 2
-    n = 1 << (iLogBase2 + (iZeropad - 1));
+    int iPaddedN = 1 << (iLogBase2 + iZeropad);
+#ifdef DEBUG
+    sys_error (ERR_TRACE, "Zeropadding %d to %d", n, iPaddedN);
+#endif
+    return iPaddedN;
   }
 
   return n;