ReaScript function export: updated python function wrapper generator

amagalma · Mar 30, 2015 · 51538bb · 51538bb
1 parent c6b4df3
commit 51538bb
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Showing 3 changed files with 31 additions and 23 deletions.
diff --git a/reascript_helper.pl b/reascript_helper.pl
@@ -1,51 +1,54 @@
-# Original script by Cockos (http://landoleet.org/dev/sws/), also see http://code.google.com/p/sws-extension/issues/detail?id=432
-# JFB mods: tailored for the SWS/S&M extension, i.e. process ./ReaScript.cpp rather than ../plugin.cpp
-
 #!/usr/bin/perl
 
+# Original script by Cockos (http://landoleet.org/dev/sws/)
+# JFB mods: tailored for the SWS/S&M extension: process ./ReaScript.cpp rather than ../plugin.cpp
 
 sub ReadAPIFuncs
 {
   @funclist=();
   %rtype={};
   %ptypes={};
+  %pnames={};
+  %callfuncs={};
 
   open INFILE, "ReaScript.cpp" or die "Can't read ReaScript.cpp";
   while (<INFILE>)
   {  
     if (/\s*\{\s*APIFUNC/)
     {          
       $fname="";   
+      $callfunc="";
       if (/APIFUNC\((.+?)\),\s*(.*)/)
       {
-        $fname=$1;
+        $callfunc=$fname=$1;
         $_=$2;
       } 
       elsif (/APIFUNC_NAMED\((.+?)\,(.+?)\),\s*(.*)/)
       {
         $fname=$1;
+        $callfunc=$2;
         $_=$3;
       }    
       $fname or die "Can't parse function name";
       push @funclist, $fname;
+      $callfuncs{$fname}=$callfunc;
 
-      (/\"(.+?)\"\,\s*(.*)/) or die "Can't parse return type";
+      (/\"(.+?)\"\s*\,\s*(.*)/) or die "Can't parse return type";
       $rtype{$fname}=$1;
       $_=$2;
 
-      (/\"(.*?)\"\,\s*(.*)/) or die "Can't parse parameter types";
+      (/\"(.*?)\"\s*\,\s*(.*)/) or die "Can't parse parameter types";
       $ptypes{$fname}=$1;
       $_=$2;
 
-	  # not using these
-      #(/\"(.*?)\"/) or die "Can't parse parameter names";
-	  #$pnames{$fname}=$1;	
+      (/\"(.*?)\"/) or die "Can't parse parameter names";
+	  $pnames{$fname}=$1;	
     }
   }
   close INFILE;
 
   @funclist=sort {lc $a cmp lc $b} @funclist;
-  return (\@funclist, \%rtype, \%ptypes); 
+  return (\@funclist, \%rtype, \%ptypes, \%pnames, \%callfuncs); 
 }
 
 sub IsInt
@@ -92,4 +95,4 @@ sub UnderlyingType
 
 
 
-1;
+1;
diff --git a/reascript_python.pl b/reascript_python.pl
@@ -1,8 +1,11 @@
-# Original script by Cockos (http://landoleet.org/dev/sws/), also see http://code.google.com/p/sws-extension/issues/detail?id=432
-# JFB mods: tailored for the SWS/S&M extension, i.e. simplified (use a reaper_python import), gets function pointers with rpr_getfp(), removed "RPR_" prefix
-
 #!/usr/bin/perl
 
+# Original script by Cockos (http://landoleet.org/dev/sws/)
+# JFB mods: tailored for the SWS/S&M extension:
+# - re-use rpr_ internal functions from reaper_python import
+# - gets function pointers with rpr_getfp()
+# - removed "RPR_" prefix
+
 require "reascript_helper.pl";
 
 $arg=shift @ARGV;
@@ -35,7 +38,8 @@ sub PyPack
 {
   my ($t, $v)=@_;
   IsPlainData($t) and return sprintf "%s(%s)", PyType($t), $v; 
-  $t eq "const char*" and return sprintf "rpr_packsc(%s)", $v;
+  ($t eq "const char*" && $v ne "bytestr") and return sprintf "rpr_packsc(%s)", $v;
+  ($t eq "const char*" && $v eq "bytestr") and return sprintf "c_char_p(%s)", $v;
   $t eq "char*" and return sprintf "rpr_packs(%s)", $v;
   # todo handle char**
   IsPlainDataPtr($t) and return sprintf "%s(%s)", PyType(UnderlyingType($t)), $v;
@@ -48,10 +52,9 @@ sub PyUnpack
   my ($t, $ov, $v)=@_;
   (IsPlainData($t) || IsOpaquePtr($t) || $t eq "const char*") and return $ov;
   $t eq "char*" and return sprintf "rpr_unpacks(%s)", $v;
-  ($t eq "bool*" || $t eq "char*" || IsInt(UnderlyingType($t))) and
-    return sprintf "int(%s.value)", $v;
-  ($t eq "float*" || $t eq "double*") and return sprintf "float(%s.value)", $v;
   # todo handle char**
+  ($t eq "bool*" || IsInt(UnderlyingType($t))) and return sprintf "int(%s.value)", $v;
+  ($t eq "float*" || $t eq "double*") and return sprintf "float(%s.value)", $v;
   IsPlainDataPtr($t) and return PyUnpack(UnderlyingType($t), $v);
   die "unknown type $t";
 }
@@ -70,6 +73,7 @@ sub PyRetUnpack
 foreach $fname (@$funclist)
 {
   $fname eq "ValidatePtr" and next;
+  $fname eq "GetAudioAccessorSamples" and next;
 
   @inparms=();
   @proto=();
@@ -83,14 +87,14 @@ sub PyRetUnpack
   $i=0;
   foreach $t (split(",", $ptypes->{$fname}))
   { 
-    $isptr=IsPlainDataPtr($t);
-
+    ($t ne "const char*") and $t =~ s/const //;
+ 
     push @inparms, "p$i";
     push @proto, PyType($t);
     push @pack, PyPack($t, "p$i");
-	push @cparms, (($isptr && $t ne "char*") ? "byref(t[$i])" : "t[$i]");
+    push @cparms, (IsPlainDataPtr($t) && !IsString($t) ? "byref(t[$i])" : "t[$i]");
     push @unpack, PyUnpack($t, "p$i", "t[$i]");
-    $isptr and $byref=1;
+    IsPlainDataPtr($t) and $byref=1;
     ++$i;
   }
 
@@ -114,5 +118,5 @@ sub PyRetUnpack
 }
 
 
-warn "Parsed " . @$funclist . " functions\n";
+print STDERR "Parsed " . @$funclist . " functions\n";
 
diff --git a/whatsnew.txt b/whatsnew.txt
@@ -22,6 +22,7 @@ Added actions
  - SWS/BR: Play from edit cursor position and solo active item for the duration (perform until shortcut released)
 
 ReaScript
++Improved Python function wrappers (sws_python*.py)
 +Added functions to convert track/item/take from and to GUID:
  - BR_GetMediaItemByGUID
  - BR_GetMediaItemGUID