/* -*- tab-width: 4 -*-
*
* Electric(tm) VLSI Design System
*
* File: SpiceOut.java
* Input/output tool: reader for basic Spice2 or GNUCap output (.spo)
* Written by Steven M. Rubin, Sun Microsystems.
*
* Copyright (c) 2004 Sun Microsystems and Static Free Software
*
* Electric(tm) is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Electric(tm) is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Electric(tm); see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, Mass 02111-1307, USA.
*/
package com.sun.electric.tool.io.input;
import com.sun.electric.database.hierarchy.Cell;
import com.sun.electric.database.text.TextUtils;
import com.sun.electric.tool.simulation.AnalogAnalysis;
import com.sun.electric.tool.simulation.Stimuli;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
/**
* Class for reading and displaying waveforms from Spice2 or GNUCap output.
* These are contained in .spo files.
*/
public class SpiceOut extends Simulate
{
SpiceOut() {}
/**
* Method to read an Spice output file.
*/
protected void readSimulationOutput(Stimuli sd, URL fileURL, Cell cell)
throws IOException
{
// open the file
if (openTextInput(fileURL)) return;
// show progress reading .spo file
startProgressDialog("Spice output", fileURL.getFile());
// read the actual signal data from the .spo file
readSpiceFile(cell, sd);
// stop progress dialog, close the file
stopProgressDialog();
closeInput();
}
private final static String CELLNAME_HEADER = "*** SPICE deck for cell ";
private void readSpiceFile(Cell cell, Stimuli sd)
throws IOException
{
boolean dataMode = false;
boolean first = true;
boolean pastEnd = false;
String cellName = null;
int mostSignals = 0;
List<List<Double>> allNumbers = new ArrayList<List<Double>>();
for(;;)
{
String line = getLine();
if (line == null) break;
// make sure this isn't an HSPICE deck (check first line)
if (first)
{
first = false;
if (line.length() >= 20)
{
String hsFormat = line.substring(16, 20);
if (hsFormat.equals("9007") || hsFormat.equals("9601"))
{
System.out.println("This is an HSPICE file, not a SPICE2 file");
System.out.println("Change the SPICE format (in Preferences) and reread");
return;
}
}
}
int len = line.length();
if (len < 2) continue;
// look for a cell name
if (cellName == null && line.startsWith(CELLNAME_HEADER))
cellName = line.substring(CELLNAME_HEADER.length());
if (line.startsWith(".END") && !line.startsWith(".ENDS"))
{
pastEnd = true;
continue;
}
if (line.startsWith("#Time"))
{
// sim_spice_signals = 0;
// ptr = line + 5;
// for(;;)
// {
// while (isWhitespace(*ptr)) ptr++;
// if (*ptr == 0) break;
// CHAR *pt = ptr;
// while (!isWhitespace(*pt)) pt++;
// CHAR save = *pt;
// *pt = 0;
// CHAR **newsignames = (CHAR **)emalloc((sim_spice_signals + 1) * (sizeof (CHAR *)), sim_tool->cluster);
// for (i = 0; i < sim_spice_signals; i++) newsignames[i] = sim_spice_signames[i];
// (void)allocstring(&newsignames[sim_spice_signals], ptr, sim_tool->cluster);
// if (sim_spice_signames != 0) efree((CHAR*)sim_spice_signames);
// sim_spice_signames = newsignames;
// sim_spice_signals++;
// *pt = save;
// ptr = pt;
// while (*ptr != ' ' && *ptr != 0) ptr++;
// }
// if (sim_spice_signals == sim_spice_printlistlen)
// {
// for (i = 0; i < sim_spice_signals; i++)
// {
// efree(sim_spice_signames[i]);
// (void)allocstring(&sim_spice_signames[i], sim_spice_printlist[i], sim_tool->cluster);
// }
// }
pastEnd = true;
continue;
}
if (pastEnd && !dataMode)
{
if ((Character.isWhitespace(line.charAt(0)) || line.charAt(0) == '-') && TextUtils.isDigit(line.charAt(1)))
dataMode = true;
}
if (pastEnd && dataMode)
{
if (!((Character.isWhitespace(line.charAt(0)) || line.charAt(0) == '-') && TextUtils.isDigit(line.charAt(1))))
{
dataMode = false;
pastEnd = false;
}
}
if (dataMode)
{
List<Double> numbers = new ArrayList<Double>();
int ptr = 0;
while (ptr < len)
{
while (ptr < len && Character.isWhitespace(line.charAt(ptr))) ptr++;
int start = ptr;
while (ptr < len && !Character.isWhitespace(line.charAt(ptr))) ptr++;
numbers.add(new Double(TextUtils.atof(line.substring(start, ptr))));
ptr++;
}
if (numbers.size() > mostSignals) mostSignals = numbers.size();
allNumbers.add(numbers);
}
}
// generate dummy names
mostSignals--;
if (mostSignals <= 0)
{
System.out.println("No data found in the file");
return;
}
AnalogAnalysis an = new AnalogAnalysis(sd, AnalogAnalysis.ANALYSIS_SIGNALS, false);
sd.setCell(cell);
// convert lists to arrays
int numEvents = allNumbers.size();
an.buildCommonTime(numEvents);
for(int i=0; i<numEvents; i++)
{
List<Double> row = allNumbers.get(i);
an.setCommonTime(i, row.get(0).doubleValue());
}
for(int j=0; j<mostSignals; j++)
{
double[] values = new double[numEvents];
for(int i=0; i<numEvents; i++)
{
List<Double> row = allNumbers.get(i);
values[i] = row.get(j+1).doubleValue();
}
an.addSignal("Signal " + (j+1), null, values);
}
}
}