interpreter/preprocessor/faust-0.9.47mr3/compiler/boxes/boxcomplexity.cpp

   1 /************************************************************************
   2  ************************************************************************
   3     FAUST compiler
   4         Copyright (C) 2003-2004 GRAME, Centre National de Creation Musicale
   5     ---------------------------------------------------------------------
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   7     it under the terms of the GNU General Public License as published by
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   9     (at your option) any later version.
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  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
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  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  ************************************************************************
  20  ************************************************************************/
  21 /**
  22  * @file boxcomplexity.cpp
  23  * Implement complexity computation for box diagrams.
  24  */
  25
  26
  27
  28
  29 // construction des representations graphiques
  30
  31
  32 #include <ostream>
  33 #include "xtended.hh"
  34 #include "boxcomplexity.h"
  35
  36 using namespace std;
  37
  38 /**
  39  * property Key used to store box complexity
  40  */
  41 Tree    BCOMPLEXITY     = tree ("BCOMPLEXITY");
  42
  43 static int computeBoxComplexity (Tree box);
  44
  45 /**
  46  * Return the complexity propety of a box expression tree.
  47  * Return the complexity propety of a box expression tree. If no
  48  * complexity property exist, it is created an computeBoxComplexity
  49  * is called do to the job.
  50  *
  51  * @param box an evaluated box expression tree
  52  * @return the complexity of box
  53  *
  54  * @see computeBoxComplexity
  55  */
  56 int boxComplexity (Tree box)
  57 {
  58         Tree prop = box->getProperty(BCOMPLEXITY);
  59
  60         if (prop) {
  61                 return tree2int(prop);
  62
  63         } else {
  64                 int v = computeBoxComplexity(box);
  65                 box->setProperty(BCOMPLEXITY,tree(v));
  66                 return v;
  67         }
  68 }
  69
  70 /**
  71  * internal shortcut to simplify computeBoxComplexity code
  72  */
  73 #define BC boxComplexity
  74
  75
  76 /**
  77  * Compute the complexity of a box expression.
  78  *
  79  * Compute the complexity of a box expression tree according to the
  80  * complexity of its subexpressions. Basically it counts the number
  81  * of boxes to be drawn. The box-diagram expression is supposed
  82  * to be evaluated. It will exit with an error if it is not the case.
  83  *
  84  * @param box an evaluated box expression tree
  85  * @return the complexity of box
  86  */
  87 int computeBoxComplexity (Tree box)
  88 {
  89         int             i;
  90         double  r;
  91         prim0   p0;
  92         prim1   p1;
  93         prim2   p2;
  94         prim3   p3;
  95         prim4   p4;
  96         prim5   p5;
  97
  98         Tree    t1, t2, ff, label, cur, min, max, step, type, name, file;
  99
 100         xtended* xt = (xtended*) getUserData(box);
 101
 102
 103         // simple elements
 104                  if (xt)                                                return 1;
 105         else if (isBoxInt(box, &i))                     return 1;
 106         else if (isBoxReal(box, &r))            return 1;
 107
 108         else if (isBoxCut(box))                         return 0;
 109         else if (isBoxWire(box))                        return 0;
 110
 111         else if (isBoxPrim0(box, &p0))          return 1;
 112         else if (isBoxPrim1(box, &p1))          return 1;
 113         else if (isBoxPrim2(box, &p2))          return 1;
 114         else if (isBoxPrim3(box, &p3))          return 1;
 115         else if (isBoxPrim4(box, &p4))          return 1;
 116         else if (isBoxPrim5(box, &p5))          return 1;
 117
 118         // foreign elements
 119         else if (isBoxFFun(box, ff))            return 1;
 120     else if (isBoxFConst(box, type, name, file))
 121                                         return 1;
 122     else if (isBoxFVar(box, type, name, file))
 123                                         return 1;
 124         // slots and symbolic boxes
 125         else if (isBoxSlot(box, &i))            return 1;
 126         else if (isBoxSymbolic(box,t1,t2))      return 1 + BC(t2);
 127
 128         // block diagram binary operator
 129         else if (isBoxSeq(box, t1, t2))         return BC(t1) + BC(t2);
 130         else if (isBoxSplit(box, t1, t2))       return BC(t1) + BC(t2);
 131         else if (isBoxMerge(box, t1, t2))       return BC(t1) + BC(t2);
 132         else if (isBoxPar(box, t1, t2))         return BC(t1) + BC(t2);
 133         else if (isBoxRec(box, t1, t2))         return BC(t1) + BC(t2);
 134
 135         // user interface widgets
 136         else if (isBoxButton(box, label))                                               return 1;
 137         else if (isBoxCheckbox(box, label))                                             return 1;
 138         else if (isBoxVSlider(box, label, cur, min, max, step)) return 1;
 139         else if (isBoxHSlider(box, label, cur, min, max, step)) return 1;
 140         else if (isBoxHBargraph(box, label, min, max))                  return 1;
 141         else if (isBoxVBargraph(box, label, min, max))                  return 1;
 142         else if (isBoxNumEntry(box, label, cur, min, max, step))return 1;
 143
 144         // user interface groups
 145         else if (isBoxVGroup(box, label, t1))   return BC(t1);
 146         else if (isBoxHGroup(box, label, t1))   return BC(t1);
 147         else if (isBoxTGroup(box, label, t1))   return BC(t1);
 148
 149         //a completer
 150         else {
 151                 //fout << tree2str(box);
 152                 cerr << "ERROR in boxComplexity : not an evaluated box [[  " << *box << " ]]";
 153                 exit(-1);
 154         }
 155
 156         return -1;
 157 }