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adds working FST reader implementation

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This commit is contained in:
Eyck Jentzsch
2023-02-27 13:09:38 +01:00
parent 299f76323f
commit e44e4d0a05
12 changed files with 321 additions and 197 deletions
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plugins/com.minres.scviewer.database.fst/src/com/minres/scviewer/database/fst/FstDbLoader.java
+36 -64
View File
@@ -13,22 +13,18 @@ package com.minres.scviewer.database.fst;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayDeque;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Vector;
import java.util.zip.GZIPInputStream;
import com.google.common.collect.Iterables;
import com.minres.scviewer.database.BitVector;
import com.minres.scviewer.database.DoubleVal;
import com.minres.scviewer.database.EventList;
import com.minres.scviewer.database.IEventList;
import com.minres.scviewer.database.IWaveform;
import com.minres.scviewer.database.IWaveformDb;
import com.minres.scviewer.database.IWaveformDbLoader;
import com.minres.scviewer.database.InputFormatException;
import com.minres.scviewer.database.RelationType;
@@ -39,59 +35,56 @@ import com.minres.scviewer.database.RelationType;
public class FstDbLoader implements IWaveformDbLoader, IFstDatabaseBuilder {
/** The Constant TIME_RES. */
private static final Long TIME_RES = 1000L; // ps
/** The module stack. */
private ArrayDeque<String> moduleStack;
/** The signals. */
private List<IWaveform> signals;
FstFileParser parser;
/** The max time. */
private long maxTime;
private int timeScale;
/** The pcs. */
protected PropertyChangeSupport pcs = new PropertyChangeSupport(this);
static int calculateTimescaleMultipierPower(int power){
int answer = 1;
if(power<=0){
return answer;
} else{
for(int i = 1; i<= power; i++)
answer *= 10;
return answer;
}
}
/* (non-Javadoc)
* @see com.minres.scviewer.database.ITrDb#load(java.io.File)
*/
@SuppressWarnings("unchecked")
@Override
public void load(IWaveformDb db, File file) throws InputFormatException {
public void load(File file) throws InputFormatException {
dispose();
this.maxTime=0;
boolean res = false;
signals = new Vector<>();
moduleStack= new ArrayDeque<>();
res = new FstFileParser(file).load(this);
parser = new FstFileParser(file);
res = parser.open(this);
moduleStack=null;
if(!res)
throw new InputFormatException("Could not parse VCD file");
// calculate max time of this database
for(IWaveform waveform:signals) {
IEventList events =waveform.getEvents();
if(!events.isEmpty())
maxTime= Math.max(maxTime, events.lastKey());
}
// extend signals to have a last value set at max time
for(IWaveform s:signals){
if(s instanceof FstSignal<?>) {
IEventList events = ((FstSignal<?>)s).getEvents();
if(events.size()>0 && events.lastKey()<maxTime){
Object val = events.lastEntry().events[0];
if(val instanceof BitVector) {
((FstSignal<BitVector>)s).addSignalChange(maxTime, (BitVector) val);
} else if(val instanceof DoubleVal)
((FstSignal<DoubleVal>)s).addSignalChange(maxTime, (DoubleVal) val);
}
}
}
pcs.firePropertyChange(IWaveformDbLoader.LOADING_FINISHED, null, null);
}
public void dispose() {
if(parser!=null) {
parser.close();
parser=null;
}
moduleStack=null;
signals=null;
}
@@ -101,7 +94,7 @@ public class FstDbLoader implements IWaveformDbLoader, IFstDatabaseBuilder {
*/
@Override
public long getMaxTime() {
return maxTime;
return maxTime*calculateTimescaleMultipierPower(15+timeScale); // timescape is 1e(timeScale), we calculate in fs
}
/* (non-Javadoc)
@@ -136,20 +129,14 @@ public class FstDbLoader implements IWaveformDbLoader, IFstDatabaseBuilder {
/* (non-Javadoc)
* @see com.minres.scviewer.database.vcd.ITraceBuilder#newNet(java.lang.String, int, int)
*/
@SuppressWarnings("unchecked")
@Override
public Integer newNet(String name, int i, int width) {
public void newNet(String name, int handle, int width, boolean alias) {
String netName = moduleStack.isEmpty()? name: moduleStack.peek()+"."+name;
int id = signals.size();
if(width==0) {
signals.add( i<0 ? new FstSignal<DoubleVal>(id, netName, width) :
new FstSignal<DoubleVal>((FstSignal<DoubleVal>)signals.get(i), id, netName));
} else if(width>0){
signals.add( i<0 ? new FstSignal<BitVector>(id, netName, width) :
new FstSignal<BitVector>((FstSignal<BitVector>)signals.get(i), id, netName));
}
IWaveform signal = width==0?
new FstSignal<DoubleVal>(this, handle, netName, width):
new FstSignal<BitVector>(this, handle, netName, width);
signals.add(signal);
pcs.firePropertyChange(IWaveformDbLoader.SIGNAL_ADDED, null, Iterables.getLast(signals));
return id;
}
/* (non-Javadoc)
@@ -161,28 +148,10 @@ public class FstDbLoader implements IWaveformDbLoader, IFstDatabaseBuilder {
return signal.getRowCount();
}
/* (non-Javadoc)
* @see com.minres.scviewer.database.vcd.ITraceBuilder#appendTransition(int, long, com.minres.scviewer.database.vcd.BitVector)
*/
@SuppressWarnings("unchecked")
@Override
public void appendTransition(int signalId, long currentTime, BitVector value) {
FstSignal<BitVector> signal = (FstSignal<BitVector>) signals.get(signalId);
Long time = currentTime* TIME_RES;
signal.addSignalChange(time, value);
}
/* (non-Javadoc)
* @see com.minres.scviewer.database.vcd.ITraceBuilder#appendTransition(int, long, com.minres.scviewer.database.vcd.BitVector)
*/
@SuppressWarnings("unchecked")
@Override
public void appendTransition(int signalId, long currentTime, double value) {
FstSignal<DoubleVal> signal = (FstSignal<DoubleVal>) signals.get(signalId);
Long time = currentTime* TIME_RES;
signal.addSignalChange(time, new DoubleVal(value));
}
public void setMaxTime(long maxTime, int timeScale) {
this.maxTime = maxTime;
this.timeScale=timeScale;
}
/* (non-Javadoc)
* @see com.minres.scviewer.database.IWaveformDbLoader#getAllRelationTypes()
*/
@@ -211,5 +180,8 @@ public class FstDbLoader implements IWaveformDbLoader, IFstDatabaseBuilder {
pcs.removePropertyChangeListener(l);
}
public void getEvents(int id, int width, IEventList values) {
if(values instanceof EventList)
parser.getValueChanges(id, width, calculateTimescaleMultipierPower(15+timeScale), (EventList) values);
}
}