cmDspPgm.h/c : Added IntToSym example. Added initial set of shortened macros for programming.

src/cmPP_NARG.h

+#ifndef cmPP_NARG_H
+#define cmPP_NARG_H
+
+
+// Taken from here:
+// https://groups.google.com/forum/#!topic/comp.std.c/d-6Mj5Lko_s
+// and here:
+// https://stackoverflow.com/questions/4421681/how-to-count-the-number-of-arguments-passed-to-a-function-that-accepts-a-variabl
+
+#define PP_NARG(...) \
+         PP_NARG_(__VA_ARGS__,PP_RSEQ_N())
+
+#define PP_NARG_(...) \
+         PP_128TH_ARG(__VA_ARGS__)
+
+#define PP_128TH_ARG( \
+          _1, _2, _3, _4, _5, _6, _7, _8, _9,_10, \
+         _11,_12,_13,_14,_15,_16,_17,_18,_19,_20, \
+         _21,_22,_23,_24,_25,_26,_27,_28,_29,_30, \
+         _31,_32,_33,_34,_35,_36,_37,_38,_39,_40, \
+         _41,_42,_43,_44,_45,_46,_47,_48,_49,_50, \
+         _51,_52,_53,_54,_55,_56,_57,_58,_59,_60, \
+         _61,_62,_63,_64,_65,_66,_67,_68,_69,_70, \
+         _71,_72,_73,_74,_75,_76,_77,_78,_79,_80, \
+         _81,_82,_83,_84,_85,_86,_87,_88,_89,_90, \
+         _91,_92,_93,_94,_95,_96,_97,_98,_99,_100, \
+         _101,_102,_103,_104,_105,_106,_107,_108,_109,_110, \
+         _111,_112,_113,_114,_115,_116,_117,_118,_119,_120, \
+         _121,_122,_123,_124,_125,_126,_127,N,...) N
+#define PP_RSEQ_N() \
+         127,126,125,124,123,122,121,120, \
+         119,118,117,116,115,114,113,112,111,110, \
+         109,108,107,106,105,104,103,102,101,100, \
+         99,98,97,96,95,94,93,92,91,90, \
+         89,88,87,86,85,84,83,82,81,80, \
+         79,78,77,76,75,74,73,72,71,70, \
+         69,68,67,66,65,64,63,62,61,60, \
+         59,58,57,56,55,54,53,52,51,50, \
+         49,48,47,46,45,44,43,42,41,40, \
+         39,38,37,36,35,34,33,32,31,30, \
+         29,28,27,26,25,24,23,22,21,20, \
+         19,18,17,16,15,14,13,12,11,10, \
+         9,8,7,6,5,4,3,2,1,0
+
+#endif

src/dsp/cmDspPgm.c

 #include "cmTime.h"
 #include "cmAudioSys.h"
 #include "cmProcObj.h"
+#include "cmPP_NARG.h"
 #include "cmDspCtx.h"
 #include "cmDspClass.h"
 #include "cmDspSys.h"
 {
   cmDspRC_t rc = kOkDspRC;
 
-  cmDspInst_t* btn0  = cmDspSysAllocButton( h, "Btn0", 0.0 );
-  cmDspInst_t* btn1  = cmDspSysAllocButton( h, "Btn1", 0.0 );
-  cmDspInst_t* btn2  = cmDspSysAllocButton( h, "Btn2", 0.0 );  
+  inst_t* btn0  = button( "Btn0", 0.0 );
+  inst_t* btn1  = button( "Btn1", 0.0 );
+  inst_t* btn2  = button( "Btn2", 0.0 );  
 
-  cmDspInst_t* pts   = cmDspSysAllocInst( h, "PortToSym", NULL, 3, "one", "two", "three");
+  inst_t* pts   = inst( "PortToSym", NULL, "one", "two", "three");
 
-  cmDspInst_t* pr0  = cmDspSysAllocInst( h, "Printer", NULL, 1, "0:" );
-  cmDspInst_t* pr1  = cmDspSysAllocInst( h, "Printer", NULL, 1, "1:" );
+  inst_t* pr0  = inst( "Printer", NULL,  "sym:" );
+  inst_t* pr1  = inst( "Printer", NULL,  "btn:" );
+  inst_t* pr2  = inst( "Printer", NULL,  "out:" );
 
   // check for allocation errors
   if((rc = cmDspSysLastRC(h)) != kOkDspRC )
     goto errLabel;
   
-  cmDspSysInstallCb(   h, btn0, "out", pts, "one",NULL);
-  cmDspSysInstallCb(   h, btn1, "out", pts, "two",NULL);
-  cmDspSysInstallCb(   h, btn2, "out", pts, "three",NULL);
+  event( btn0, out, pts, one );
+  event( btn1, out, pts, two );
+  event( btn2, out, pts, three );
+
+  event( btn0, out, pr1, in );
+  event( btn1, out, pr1, in );
+  event( btn2, out, pr1, in );
+
+  event( pts,  one,   pr0, in );
+  event( pts,  two,   pr0, in );
+  event( pts,  three, pr0, in );
+  event( pts,  out,   pr2, in );
+
+ errLabel:
+  return rc;
+}
+
+//------------------------------------------------------------------------------
+//)
+//( { label:cmDspPgm_IntToSym file_desc:"IntToSym example program." kw:[spgm] }
+cmDspRC_t _cmDspSysPgm_IntToSym( cmDspSysH_t h, void** userPtrPtr )
+{
+  cmDspRC_t rc = kOkDspRC;
 
-  cmDspSysInstallCb(   h, btn0, "out", pr1, "in",NULL);
-  cmDspSysInstallCb(   h, btn1, "out", pr1, "in",NULL);
-  cmDspSysInstallCb(   h, btn2, "out", pr1, "in",NULL);
+  inst_t* btn0  = button( "Btn0", 0.0 );
+  inst_t* btn1  = button( "Btn1", 1.0 );
+  inst_t* btn2  = button( "Btn2", 2.0 );  
 
-  cmDspSysInstallCb(   h, pts,  "one",   pr0, "in", NULL );
-  cmDspSysInstallCb(   h, pts,  "two",   pr0, "in", NULL );
-  cmDspSysInstallCb(   h, pts,  "three", pr0, "in", NULL );
+  inst_t* pts   = inst( "IntToSym", NULL, 1, "one", 2, "two", 3, "three");
 
+  inst_t* pr0  = inst( "Printer", NULL,  "btn:" );
+  inst_t* pr1  = inst( "Printer", NULL,  "sym:" );
+  inst_t* pr2  = inst( "Printer", NULL,  "out:" );
 
+  // check for allocation errors
+  if((rc = cmDspSysLastRC(h)) != kOkDspRC )
+    goto errLabel;
+  
+  event( btn0, out, pts, one );
+  event( btn1, out, pts, two );
+  event( btn2, out, pts, three );
+
+  event( btn0, out, pr0, in );
+  event( btn1, out, pr0, in );
+  event( btn2, out, pr0, in );
+
+  event( pts,  one,   pr1, in );
+  event( pts,  two,   pr1, in );
+  event( pts,  three, pr1, in );
+
+  event( pts, out, pr2, in );
+  
  errLabel:
   return rc;
 }
 
+
 //------------------------------------------------------------------------------
 //)
 //( { label:cmDspPgm_Line file_desc:"Line generator example program." kw:[spgm] }
   { "line",              _cmDspSysPgm_Line,           NULL, NULL },
   { "1Up",               _cmDspSysPgm_1Up,            NULL, NULL },
   { "PortToSym",         _cmDspSysPgm_PortToSym,      NULL, NULL },
+  { "IntToSym",          _cmDspSysPgm_IntToSym,       NULL, NULL },
   { "preset",            _cmDspSysPgm_Preset,         NULL, NULL },
   { "rsrcWr",            _cmDspSysPgm_RsrcWr,         NULL, NULL },
   { "router",            _cmDspSysPgm_Router,         NULL, NULL },

src/dsp/cmDspSys.h

   cmDspRC_t    cmDspSysInsertHorzBorder( cmDspSysH_t h );
 
   cmDspRC_t    cmDspSysNewPage( cmDspSysH_t h, const cmChar_t* title );
-
-
+  
   //----------------------------------------------------------------------------------------------------
   // Connection Functions.
   //
 
   //)
 
+  typedef cmDspInst_t inst_t;
+  
+#define inst( classLabel, instLabel, ... )       cmDspSysAllocInst( h, classLabel, instLabel, PP_NARG(__VA_ARGS__), __VA_ARGS__ )
+#define button( label, real_val )                cmDspSysAllocButton(  h, label, real_val )
+#define scalar( label, rmin, rmax, rstep, rval ) cmDspSysAllocScalar(  h, label, rmin, rmax, rstep, rval )
+
+  
+#define audio( src, sarg, dst, darg )      cmDspSysConnectAudio( h, src, #sarg, dst, #darg )
+#define event( src, sarg, dst, darg )      cmDspSysInstallCb( h, src, #sarg, dst, #darg, NULL )
+
+  
+  
 #ifdef __cplusplus
   }
 #endif