"atomic bomb" commit. Reorganized OpenCV directory structure

utils/extract_doublepointers.py

@@ -0,0 +1,73 @@
+#! /usr/bin/env python
+"""
+This script checks the OpenCV headers to find methods that take double pointers
+to OpenCV data structures as in/out parameters.
+
+These methods need a special treatment and therefore SWIG typemaps are generated.
+"""
+
+import sys
+
+def convert_name(str):
+    count = 0
+    if (str[0:2] == "_p"):
+        p,s = convert_name(str[2:])
+        return(('*' + p),s)
+    return ('',str[1:])
+
+
+if (sys.argv.__len__() < 1):
+    sys.exit(1)
+
+infile = open(sys.argv[1],'r')
+
+lines = infile.readlines()
+
+infile.close()
+
+foundit = 0
+mytypes = []
+
+for line in lines:
+    if (foundit == 0):
+        if (line.find('TYPES TABLE (BEGIN') > -1):
+            foundit = 1
+    else:
+        if (line.find('TYPES TABLE (END)') > -1):
+            foundit = 0
+        else:
+            stuff = line.split()
+            if (stuff.__len__() >= 3):
+                if (stuff[0] == "#define"):
+                    mytypes.append(stuff[1][8:])
+
+print """
+/*//////////////////////////////////////////////////////////////////////////////////////////////////
+// This file was automatically generated from the extract_doublepointers.py script found in the 
+// 'utils' subdirectory of the OpenCV distribution.  Run it on the .cpp file generated by swig to
+// generate the double pointer typemaps
+/////////////////////////////////////////////////////////////////////////////////////////////////M*/
+"""
+
+for mytype in mytypes:
+    p,s = convert_name(mytype)
+    if (p.__len__() >= 2):
+        print '%typemap(in)',s,p,' (void * vptr, $*1_ltype buffer) {'
+        print '\tif ((SWIG_ConvertPtr($input, &vptr, $*1_descriptor, 1)) == -1){'
+        print '\t\tSWIG_fail;';
+        print '\t}'
+        print '\tbuffer = ($*1_ltype) vptr;'
+        print '\t$1=&buffer;'
+        print '}'
+        #rez = "" + s + " " + p + 'getPtrTo' + s + '( ' +  s +  ' ' + p[1:] + 'input)'
+        #sys.stdout.write(rez)
+        #sys.stdout.write('\n{\n\t' + s + ' ' + p + 'rez = new ' + s + p[1:] + '();')
+        #sys.stdout.write('\n\t*rez =input;\n\treturn(rez);\n}\n')
+        #sys.stdout.write(rez)
+        #sys.stdout.write(';\n')
+
+
+#    else:
+#        print '/* No conversions needed for type ', s, ' */'
+
+