src/edu/berkeley/fleet/two/ShipDescription.java

   1 package edu.berkeley.fleet.two;
   2 import edu.berkeley.fleet.api.*;
   3 import edu.berkeley.fleet.fpga.verilog.Verilog.PercolatedPort;
   4 import java.io.*;
   5 import java.util.*;
   6
   7 /** NOT YET FINALIZED: A description (specification) of a ship */
   8 public class ShipDescription implements Iterable<DockDescription> {
   9
  10     private String name;
  11     private LinkedHashMap<String,DockDescription> docks     = new LinkedHashMap<String,DockDescription>();
  12     private HashMap<String,String>                sections  = new HashMap<String,String>();
  13     private HashMap<String,Constant>              constants = new HashMap<String,Constant>();
  14
  15     public String getName() { return name; }
  16     public String getSection(String sectionName) { return sections.get(sectionName); }
  17     public DockDescription getDockDescription(String name) { return docks.get(name); }
  18     public Iterator<DockDescription> iterator() { return docks.values().iterator(); }
  19
  20     public final LinkedList<PercolatedPort> percolatedPorts = new LinkedList<PercolatedPort>();
  21
  22     public ShipDescription(String name, BufferedReader r) throws IOException {
  23         if (name.endsWith(".ship")) name = name.substring(0, name.length()-".ship".length());
  24         this.name = name;
  25         String sectionName = null;
  26         StringBuffer sb = new StringBuffer();
  27         while(true) {
  28             String s = r.readLine();
  29             if (s==null || s.startsWith("==")) {
  30                 if (sectionName != null) sections.put(sectionName, sb.toString());
  31                 if (s==null) break;
  32                 sb = new StringBuffer();
  33                 sectionName = s.trim();
  34                 while(sectionName.startsWith("="))
  35                     sectionName = sectionName.substring(1);
  36                 while(sectionName.endsWith("="))
  37                     sectionName = sectionName.substring(0, sectionName.length()-1);
  38                 sectionName = sectionName.trim().toLowerCase();
  39                 continue;
  40             }
  41             sb.append(s+"\n");
  42         }
  43         for(String s : sections.keySet())
  44             processSection(s);
  45     }
  46
  47     public Constant getConstant(String name) {
  48         return constants.get(name);
  49     }
  50
  51     private void processSection(String section) throws IOException {
  52         if (section.equals("")) {
  53             BufferedReader br = new BufferedReader(new StringReader(sections.get(section)));
  54             for(String s = br.readLine(); s != null; s = br.readLine()) {
  55                 if (s.trim().length()==0) continue;
  56                 String key = s.substring(0, s.indexOf(':')).trim();
  57                 String val = s.substring(s.indexOf(':')+1).trim();
  58                 if (key.toLowerCase().equals("ship"))
  59                     name = val.trim();
  60             }
  61         } else if (section.equals("constants")) {
  62             BufferedReader br = new BufferedReader(new StringReader(sections.get(section)));
  63             for(String s = br.readLine(); s != null; s = br.readLine()) {
  64                 if (s.indexOf(':')==-1) continue;
  65                 String key = s.substring(0, s.indexOf(':')).trim();
  66                 if (key.startsWith("constant")) {
  67                     String constname = key.substring("constant".length()+1).trim();
  68                     String val       = s.substring(s.indexOf(':')+1).trim();
  69                     constants.put(constname, new Constant(val));
  70                 }
  71             }
  72         } else if (section.equals("ports")) {
  73             BufferedReader br = new BufferedReader(new StringReader(sections.get(section)));
  74             boolean rightSide = false;
  75             DockDescription p = null;
  76             for(String s = br.readLine(); s != null; s = br.readLine()) {
  77                 if (s.trim().length()==0) { rightSide = true; continue; }
  78
  79                 String key = s.substring(0, s.indexOf(':')).trim();
  80                 boolean inbox = false;
  81                 key = key.replaceAll("  +", " ");
  82                 if      (key.equals("data in"))   { inbox = true;  }
  83                 else if (key.equals("data out"))  { inbox = false; }
  84                 else if (key.equals("in"))        { inbox = true;  }
  85                 else if (key.equals("out"))       { inbox = false; }
  86                 else if (key.startsWith("percolate")) {
  87                     key = s;
  88                     key = key.substring("percolate".length()+1).trim();
  89                     boolean up = key.startsWith("up");
  90                     key = key.substring(key.indexOf(':')+1).trim();
  91                     String name = key.substring(0, key.indexOf(' '));
  92                     int width = Integer.parseInt(key.substring(key.indexOf(' ')).trim());
  93                     percolatedPorts.add(new PercolatedPort(name, width, up));
  94                     continue;
  95                 }
  96                 else if (key.startsWith("constant")) {
  97                     String constname = key.substring("constant".length()+1).trim();
  98                     String val       = s.substring(s.indexOf(':')+1).trim();
  99                     p.addConstant(constname, new Constant(val));
 100                     continue;
 101                 } else if (key.startsWith("shortcut to")) {
 102                     continue;
 103                 }
 104                 else throw new RuntimeException("unknown port type: \""+key+"\"");
 105
 106                 p = null;
 107                 String val = s.substring(s.indexOf(':')+1).trim();
 108                 String boxname = val.indexOf('.') != -1 ? val.substring(0, val.indexOf('.')) : val;
 109                 String dest    = val.indexOf('.') != -1 ? val.substring(val.indexOf('.')+1)  : "";
 110                 p = docks.get(boxname);
 111                 if (p==null) {
 112                     p = new DockDescription(this, boxname, !rightSide, inbox);
 113                     docks.put(boxname, p);
 114                 }
 115             }
 116         }
 117     }
 118
 119     public void printTeX(PrintWriter pw) throws Exception {
 120         ShipDescription sd = this;
 121         pw.println("\\pagebreak");
 122         pw.println("\\section*{The {\\tt "+sd.getName()+"} Ship}");
 123         pw.println("\\addcontentsline{toc}{subsection}{"+sd.getName()+"}");
 124         String tex = sd.getSection("tex");
 125         /*
 126         for(DockDescription bbd : sd) {
 127             pw.println("{\\bf "+(bbd.isInputDock() ? "Input: " : "Output: ")+"{\\tt "+bbd.getName()+"}}\n\n");
 128         }
 129         */
 130         int boxGap = 5;
 131         int boxHeight = 25;
 132         int boxWidth = 75;
 133
 134         int leftSize = 0;
 135         int rightSize = 0;
 136         for(DockDescription bbd : sd)
 137             if (bbd.isLeft()) leftSize += (boxHeight+boxGap);
 138             else              rightSize += (boxHeight+boxGap);
 139
 140         int totalHeight = Math.max(leftSize, rightSize);
 141         int shipWidth = (int)(boxWidth * 1.5);
 142         int totalWidth = boxGap*2 + boxWidth*2 + shipWidth;
 143
 144         pw.println("");
 145         pw.println("\\begin{center}");
 146         pw.println("\\begin{empfile}["+sd.getName()+"]");
 147         pw.println("\\begin{emp}["+sd.getName()+"]("+(totalWidth+10)+","+(totalHeight+10)+")");
 148         pw.println("  beginfig(1)");
 149         pw.println("      pickup pencircle scaled 1pt;");
 150         pw.println("      draw "+
 151                    "("+((totalWidth-shipWidth)/2)+","+0+")--"+
 152                    "("+((totalWidth-shipWidth)/2)+","+totalHeight+")--"+
 153                    "("+(totalWidth-((totalWidth-shipWidth)/2))+","+totalHeight+")--"+
 154                    "("+(totalWidth-((totalWidth-shipWidth)/2))+","+0+")--"+
 155                    "("+((totalWidth-shipWidth)/2)+","+0+");");
 156         int left = 0;
 157         int right = 0;
 158         for(DockDescription bbd : sd) {
 159             int ypos = (totalHeight - (boxGap/2) - (bbd.isLeft() ? left : right));
 160             int half = (totalWidth-shipWidth)/2;
 161             int p1 = bbd.isLeft() ? (half-5) : ((totalWidth-half)+5);
 162             int p3 = bbd.isLeft() ? (p1 - boxWidth) : (p1 + boxWidth);
 163             if (bbd.isInputDock()) {
 164                 int p1x = p1;
 165                 p1 = p3;
 166                 p3 = p1x;
 167             }
 168             boolean goo = ((bbd.isLeft() && bbd.isInputDock()) || (!bbd.isLeft() && bbd.isOutputDock()));
 169             int p2 = goo ? (p3 - (boxHeight/2)) : (p3 + (boxHeight/2));
 170             if (bbd.isLeft()) left += (boxHeight+boxGap);
 171             else              right += (boxHeight+boxGap);
 172             if (goo) {
 173                 pw.println("      label.rt(btex \\tt "+bbd.getName()+" etex, ("+(p1+3)+","+(ypos-boxHeight/2)+"));");
 174             } else {
 175                 pw.println("      label.lft(btex \\tt "+bbd.getName()+" etex, ("+(p1-3)+","+(ypos-boxHeight/2)+"));");
 176             }
 177             pw.println("      draw "+
 178                        "  ("+p1+","+ypos+")--"+
 179                        "  ("+p2+","+ypos+")--"+
 180                        "  ("+p3+","+(ypos-(boxHeight/2))+")--"+
 181                        "  ("+p2+","+(ypos-boxHeight)+")--"+
 182                        "  ("+p1+","+(ypos-boxHeight)+")--"+
 183                        "  ("+p1+","+ypos+");");
 184             if (bbd.isLeft()) leftSize += boxHeight;
 185             else              rightSize += boxHeight;
 186         }
 187         pw.println("  endfig;");
 188         pw.println("\\end{emp}");
 189         pw.println("\\end{empfile}");
 190         pw.println("\\end{center}");
 191         pw.println("");
 192
 193         if (tex!=null)
 194             pw.println(tex);
 195     }
 196
 197     // FIXME: merge with BitMask
 198     public class Constant {
 199         public long    setbits   = 0;
 200         public long    clearbits = 0;
 201         public boolean signExtend = false;
 202         public int     numberOffset = 0;
 203         public int     numberWidth = 0;
 204         public Constant(String s) {
 205             if (s.startsWith("0x")) {
 206                 setbits = Long.parseLong(s.substring(2), 16);
 207                 clearbits = ~setbits;
 208             } else if (s.length() == 37) {
 209                 for(int i=36; i>=0; i--) {
 210                     char c = s.charAt(36-i);
 211                     switch(c) {
 212                         case '0': clearbits |= (1<<i); break;
 213                         case '1': setbits   |= (1<<i); break;
 214                         case '.': break;
 215                         case 's': signExtend = true;  numberOffset = i; numberWidth++; break;
 216                         case 'u': signExtend = false; numberOffset = i; numberWidth++; break;
 217                     }
 218                 }
 219             } else {
 220                 setbits = Long.parseLong(s);
 221                 clearbits = ~setbits;
 222             }
 223         }
 224     }
 225
 226 }