forked from twistedfall/opencv-rust
-
Notifications
You must be signed in to change notification settings - Fork 0
/
gen_rust.py
1058 lines (911 loc) · 40.4 KB
/
gen_rust.py
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
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
import sys, re, os.path
import logging
from pprint import pformat
from string import Template
if sys.version_info[0] >= 3:
from io import StringIO
else:
from cStringIO import StringIO
#
# EXCEPTIONS TO AUTO GENERATION
#
ManualFuncs = {
"core" : [
[ "class cv.Mat" , "", [], [] ],
[ "cv.Mat.Mat", "Mat", [], [] ],
[ "cv.Mat.Mat", "Mat", [],
[ [ "int", "rows" ], [ "int", "cols" ], [ "int" , "type" ] ] ],
[ "cv.Mat.depth", "int", ["/C"], [] ],
[ "cv.Mat.type", "int", ["/C"], [] ],
[ "cv.Mat.channels", "int", ["/C"], [] ],
[ "cv.Mat.size", "Size", ["/C"], [] ],
[ "cv.Mat.elemSize", "size_t", ["/C"], [] ],
[ "cv.Mat.isContinuous", "bool", ["/C"], [] ],
[ "cv.Mat.clone", "Mat", ["/C"], [] ],
[ "cv.Mat.copyTo", "void", ["/C"], [["Mat", "OutputArray"]] ],
[ "cv.Mat.convertTo", "void", ["/C"], [ ["Mat", "OutputArray"], ["int", "rtype"], ["double", "scale"]] ],
[ "cv.Mat.ptr", "uchar*", ["/C"], [["int", "Row"]] ],
]
}
renamed_funcs = {
"cv_core_divide_MMMDI": "divide_mat",
"cv_core_norm_MMIM":"norm_dist",
"cv_core_ellipse_MPSDDDSIII": "ellipse_tilted",
"cv_core_Mat_Mat_III": "for_rows_and_cols",
"cv_core_Mat_type": "cv_type",
"cv_calib3d_StereoSGBM_StereoSGBM_IIIIIIIIIIB": "for_params",
"cv_calib3d_StereoBM_StereoBM_III": "for_params",
"cv_features2d_BOWKMeansTrainer_cluster_M": "cluster_with_desc",
"cv_features2d_BOWTrainer_cluster_M": "cluster_with_desc",
"cv_features2d_DescriptorMatcher_match_MMVM" : "matches",
"cv_features2d_DescriptorMatcher_match_MVV" : "matches",
"cv_features2d_KeyPoint_KeyPoint_FFFFFII" : "for_params",
"cv_features2d_DMatch_DMatch_IIF" : "for_params",
"cv_features2d_DMatch_DMatch_IIIF" : "for_image",
"cv_features2d_DescriptorMatcher_knnMatch_MMVIMB" : "knnTrainMatch",
"cv_features2d_DescriptorMatcher_match_MMVM": "trainAndMatch",
"cv_features2d_BRISK_BRISK_VVFFV" : "for_pattern",
"cv_highgui_VideoWriter_VideoWriter_SIDSB" : "for_params",
"cv_highgui_VideoCapture_VideoCapture_S" : "for_file",
"cv_highgui_VideoCapture_VideoCapture_I" : "for_device",
"cv_highgui_VideoCapture_open_S" : "open_file",
"cv_highgui_VideoCapture_open_I" : "open_fd",
"cv_imgproc_integral_MMMI" : "integral_squares",
"cv_imgproc_integral_MMMMI" : "integral_squares_tilted",
"cv_imgproc_distanceTransform_MMMIII" : "distance_tranform_labels",
"cv_imgproc_Subdiv2D_Subdiv2D_R" : "for_rect",
"cv_imgproc_Subdiv2D_insert_V" : "insert_multi",
"cv_objdetect_HOGDescriptor_HOGDescriptor_S": "for_file",
"cv_objdetect_HOGDescriptor_HOGDescriptor_SSSSIIDIDBI": "for_params",
"cv_objdetect_CascadeClassifier_detectMultiScale_MVVVDIISSB" : "detectMultiScaleFull",
"cv_objdetect_CascadeClassifier_CascadeClassifier_S": "for_file",
"cv_video_calcOpticalFlowSF_MMMIIIDDIDDDIDDD" : "calc_optical_flow_full",
"cv_video_KalmanFilter_KalmanFilter_IIII" : "for_params",
"cv_video_BackgroundSubtractorMOG_BackgroundSubtractorMOG_IIDD" : "for_params",
"cv_video_BackgroundSubtractorMOG2_BackgroundSubtractorMOG2_IFB" : "for_params",
}
class_ignore_list = (
#core
"FileNode", "FileStorage", "KDTree", "IndexParams", "Params"
#videoio
# "VideoWriter",
)
const_ignore_list = (
"CV_EXPORTS_W", "CV_EXPORTS_W_SIMPLE", "CV_EXPORTS_W_MAP", "CV_MAKE_TYPE",
"CV_IS_CONT_MAT", "CV_RNG_COEFF", "IPL_IMAGE_MAGIC_VAL",
"CV_SET_ELEM_FREE_FLAG", "CV_FOURCC_DEFAULT",
"CV_WHOLE_ARR", "CV_WHOLE_SEQ", "CV_PI", "CV_LOG2",
"CV_TYPE_NAME_IMAGE",
)
func_arg_fix = {
}
#
# TYPES MAPPING
#
primitives = {
u"void" : { u"ctype": "void", "rtype": "()" },
u"bool" : { u"ctype": "int", u"rtype": "bool" },
u"uchar" : { u"ctype": "unsigned char", u"rtype": "u8" },
u"short" : { u"ctype": "short", u"rtype": "u16" },
u"int" : { u"ctype": "int", u"rtype": "i32" },
u"size_t": { u"ctype": "std::size_t", u"rtype": "::libc::types::os::arch::c95::size_t" },
u"int64" : { u"ctype": "int64", u"rtype": "i64" },
u"float" : { u"ctype": "float", u"rtype": "f32" },
u"double": { u"ctype": "double", u"rtype": "f64" },
u"uchar*": { u"ctype": "unsigned char*", u"rtype": "*mut u8" }
}
# trait_classes = [ "Algorithm" ]
forced_boxed_classes = { }
value_struct_types = {
("core", "Point") : (("x", "int"), ("y", "int")),
("core", "Point2d") : (("x", "double"), ("y", "double")),
("core", "Point2f") : (("x", "float"), ("y", "float")),
("core", "Size") : (("width", "int"), ("height", "int")),
("core", "Size2f") : (("width", "float"), ("height", "float")),
("core", "Rect") : (("x", "int"), ("y", "int"), ("width", "int"), ("height", "int")),
("core", "RotatedRect") : (("x", "float"), ("y", "float"), ("width", "float"),("height", "float"), ("angle", "float")),
("core", "TermCriteria") : (("type", "int"), ("maxCount", "int"), ("epsilon", "double")),
("core", "Scalar") : (("data", "double[4]"),)
}
for s in [2,3,4,6]:
for t in [("uchar","b"),("short","s"),("int","i"),("double","d"),("float","f")]:
value_struct_types[("core","Vec%d%s"%(s,t[1]))] = ("data", "%s[%d]"%(t[0],s)),
#
# TEMPLATES
#
T_CPP_MODULE = """
//
// This file is auto-generated, please don't edit!
//
#define LOG_TAG "org.opencv.$m"
#include "stdint.h"
#include "common.h"
typedef int64_t int64;
#include "types.h"
#include <iostream>
#include "return_types.h"
#include "opencv2/opencv_modules.hpp"
#ifdef HAVE_OPENCV_$M
#include <string>
#include "opencv2/$m/$m.hpp"
using namespace cv;
$includes
extern "C" {
$code
} // extern "C"
#endif // HAVE_OPENCV_$M
"""
T_RUST_MODULE = """
//
// This file is auto-generated, please don't edit!
//
use ::sys::$m::*;
pub mod $m {
use sys::types::*;
use std::ffi::{ CStr, CString };
use std::mem::transmute;
use libc::types::common::c95::c_void;
$module_import
$code
}
"""
const_private_list = (
"CV_MOP_.+",
"CV_INTER_.+",
"CV_THRESH_.+",
"CV_INPAINT_.+",
"CV_RETR_.+",
"CV_CHAIN_APPROX_.+",
"OPPONENTEXTRACTOR",
"GRIDDETECTOR",
"PYRAMIDDETECTOR",
"DYNAMICDETECTOR",
)
#
# AST-LIKE
#
class GeneralInfo():
def __init__(self, gen, name, namespaces):
self.gen = gen
self.namespace, self.classpath, self.classname, self.name = self.parseName(name, namespaces)
def parseName(self, name, namespaces):
'''
input: full name and available namespaces
returns: (namespace, classpath, classname, name)
'''
name = name[name.find(" ")+1:].strip() # remove struct/class/const prefix
spaceName = ""
localName = name # <classes>.<name>
for namespace in sorted(namespaces, key=len, reverse=True):
if name.startswith(namespace + "."):
spaceName = namespace
localName = name.replace(namespace + ".", "")
break
pieces = localName.split(".")
if len(pieces) > 2: # <class>.<class>.<class>.<name>
return spaceName, ".".join(pieces[:-1]), pieces[-2], pieces[-1]
elif len(pieces) == 2: # <class>.<name>
return spaceName, pieces[0], pieces[0], pieces[1]
elif len(pieces) == 1: # <name>
return spaceName, "", "", pieces[0]
else:
return spaceName, "", "" # error?!
def make_cpp_type(t):
if(t == "size_t"):
return t
return t.replace("_", "::")
class ArgInfo():
def __init__(self, gen, arg_tuple): # [ ctype, name, def val, [mod], argno ]
self.gen = gen
self.pointer = False
type = arg_tuple[0]
if type.endswith("*"):
type = type[:-1]
self.pointer = True
if type == "String":
type = "string"
if type == "Size2i":
type = "Size"
self.ctype = type
self.type = make_cpp_type(type)
self.name = arg_tuple[1]
self.defval = ""
self.typeinfo = None
if len(arg_tuple) > 2:
self.defval = arg_tuple[2]
self.out = ""
if len(arg_tuple) > 3 and "/O" in arg_tuple[3]:
self.out = "O"
if len(arg_tuple) > 3 and "/IO" in arg_tuple[3]:
self.out = "IO"
def rsname(self):
rsname = self.name
if rsname in ["type","box"]:
rsname = "_" + rsname
return rsname
def type_info(self):
if self.typeinfo == None:
self.typeinfo = self.gen.get_type_info(self.type)
return self.typeinfo
def __repr__(self):
return Template("ARG $ctype$p $name=$defval").substitute(ctype=self.type,
p=" *" if self.pointer else "",
name=self.name,
defval="" #self.defval
)
class FuncInfo(GeneralInfo):
def __init__(self, gen, decl, namespaces=[]): # [ funcname, return_ctype, [modifiers], [args] ]
GeneralInfo.__init__(self, gen, decl[0], namespaces)
self.isconstructor = self.name == self.classname
self.overridename = self.name
self.ci = None
for m in decl[2]:
if m.startswith("="):
self.overridename = m[1:]
self.static = ["","static"][ "/S" in decl[2] ]
if self.isconstructor:
self.type = "::".join(decl[0].split(".")[1:-1])
else:
self.type = make_cpp_type(decl[1])
if self.type == "Size2i":
self.type = "Size"
self.cppname = self.name.replace(".", "::")
self.cname = "_".join(decl[0].split(".")[1:])
self.args = []
self.class_nested_cppname = "::".join(decl[0].split(".")[1:-1])
for a in decl[3]:
self.args.append(ArgInfo(gen, a))
if self.isconstructor:
self.name = "new"
self.const = "/C" in decl[2]
# register self to class or generator
if self.class_nested_cppname == "":
gen.functions.append(self)
elif gen.is_ignored(self.class_nested_cppname):
logging.info('ignored: %s', self)
elif self.class_nested_cppname in ManualFuncs:
logging.info('manual: %s', self)
elif gen.is_ignored(self.class_nested_cppname):
pass
else:
self.ci = gen.get_class(self.class_nested_cppname)
self.ci.add_method(self)
def rv_header_type(self):
return self.ci.nested_cppname if self.isconstructor else self.type
def rv_type(self):
return self.gen.get_type_info(self.rv_header_type())
def reason_to_skip(self):
if self.overridename == "operator ()":
msg = "can not map operator () yet"
return msg
for a in self.args:
if self.gen.is_ignored(a.type):
msg = "can not map type %s yet"%(a.type)
return msg
return None
def gen_cpp_prelude(self):
io = StringIO()
io.write("// %s %s %s\n"%(self.cppname,
"(constructor)" if self.isconstructor else "(method)",
"(const)" if self.const else "(mut)"))
io.write("// %s\n"%(self))
for a in self.args:
io.write("// Arg %s %s =%s\n"%(a.name, a.type_info(), a.defval))
io.write("// Return value: %s\n"%(self.rv_type()))
return io.getvalue()
def c_name(self):
if len(self.args) > 0:
suffix = "_" + "".join(map(lambda a:a.type[0].capitalize(), self.args))
else:
suffix = ""
if self.ci == None:
return "cv_%s_%s%s"%(self.gen.module, self.overridename, suffix);
else:
return "cv_%s_%s_%s%s"%(self.gen.module, self.ci.nested_cname, self.overridename, suffix);
# "const", "mut", or None
def instance(self):
if not self.ci == None and not self.isconstructor:
return "const" if self.const else "mut"
return None
def gen_rust_extern(self):
rust_extern_rs = "rv::cv_return_value_%s"%(self.rv_type().ctype.replace("*","_").replace(" ","_").replace(":","_"))
args = []
if self.instance():
args.append("instance: *%s c_void"%(self.instance()))
for a in self.args:
atype = a.type_info()
args.append(a.rsname() + ": " + (atype.rctype or atype.rtype))
return "pub fn %s(%s) -> %s;\n"%(self.c_name(), ", ".join(args), rust_extern_rs)
def gen_rustdoc_default_args(self):
rust_args_default_doc = ""
for a in self.args:
atype = a.type_info()
if a.defval != "":
rust_args_default_doc += \
" /// * %s: default %s\n"%(a.rsname(), a.defval)
return rust_args_default_doc
def gen_rust_wrapper(self):
args = []
call_args = []
if self.instance() == "const":
args.append("&self")
call_args.append("self.as_ptr()")
elif self.instance() == "mut":
args.append("&mut self")
call_args.append("self.as_ptr()")
for a in self.args:
atype = a.type_info()
rtype = atype.rtype
if atype.is_string:
args.append("%s:&str"%(a.rsname()))
elif atype.is_primitive or atype.is_value or atype.is_simple:
args.append(a.rsname() + ":" + rtype)
elif a.out == "O" or a.out == "IO":
args.append(a.rsname() + ":&mut " + rtype)
else:
args.append(a.rsname() + ":& " + rtype)
if atype.is_boxed or atype.is_vector \
or atype.is_vector_of_vector or atype.is_ptr:
call_args.append("%s.ptr"%(a.rsname()))
elif atype.is_string:
call_args.append("CString::new(%s).unwrap().as_ptr()"%(a.rsname()))
else:
call_args.append("%s"%(a.rsname()))
pub = "" if self.ci and self.ci.type_info().is_trait else "pub "
rname = renamed_funcs.get(self.c_name()) or ("new" if self.isconstructor else self.overridename)
io = StringIO()
io.write(" %sfn %s(%s) -> Result<%s,String> {\n"%(pub, rname, ", ".join(args), self.rv_type().rrvtype or self.rv_type().rtype))
io.write(" unsafe {\n")
io.write(" let rv = ::%s(%s);\n"%(self.c_name(), ", ".join(call_args)))
io.write(" if rv.error_msg as i32 != 0i32 {\n")
io.write(" let v = CStr::from_ptr(rv.error_msg).to_bytes().to_vec();\n");
io.write(" ::libc::free(rv.error_msg as *mut c_void);\n")
io.write(" return Err(String::from_utf8(v).unwrap())\n")
io.write(" }\n");
if self.type == "void":
io.write(" Ok(())\n");
elif self.rv_type().is_string:
io.write(" let v = CStr::from_ptr(rv.result).to_bytes().to_vec();\n");
io.write(" ::libc::free(rv.result as *mut c_void);\n");
io.write(" Ok(String::from_utf8(v).unwrap())\n");
elif self.rv_type().is_boxed:
io.write(" Ok(%s{ ptr: rv.result })\n"%(self.rv_type().rtype))
elif self.type == "bool":
io.write(" Ok(rv.result!=0)\n")
else:
io.write(" Ok(rv.result)\n")
io.write(" }\n");
io.write(" }\n")
return io.getvalue()
def __repr__(self):
return Template("FUNC <$type $namespace.$classpath.$name $args>").substitute(**self.__dict__)
class ClassPropInfo():
def __init__(self, decl): # [f_ctype, f_name, '', '/RW']
self.ctype = decl[0]
self.name = decl[1]
self.rw = "/RW" in decl[3]
def __repr__(self):
return Template("PROP $ctype $name").substitute(ctype=self.ctype, name=self.name)
class ClassInfo(GeneralInfo):
def __init__(self, gen, decl, namespaces=[]): # [ 'class/struct cname', ': base', [modlist] ]
GeneralInfo.__init__(self, gen, decl[0], namespaces)
self.methods = []
self.simple = False
self.nested = False
for m in decl[2]:
if m == "/Simple" or m == "/Map" :
self.simple = True
if len(decl[0].split(".")) > 2:
self.nested = True
self.nested_cppname = "::".join(decl[0].split(".")[1:])
self.nested_cname = "_".join(decl[0].split(".")[1:])
self.base = decl[1].split(" ")[1].split("::")[1] if len(decl)>1 and len(decl[1])>1 else ""
# class props
self.props= []
for p in decl[3]:
self.props.append( ClassPropInfo(p) )
# register
if not gen.is_ignored(self.nested_cppname):
gen.classes[self.name] = self
def __repr__(self):
# return Template("CLASS $namespace.$classpath.$name : $base").substitute(**self.__dict__)
return Template("CLASS $namespace.$classpath.$name simple:$simple").substitute(**self.__dict__)
def add_method(self, fi):
self.methods.append(fi)
def getAllMethods(self):
result = []
result.extend([fi for fi in sorted(self.methods) if fi.isconstructor])
result.extend([fi for fi in sorted(self.methods) if not fi.isconstructor])
return result
def has_constructor(self):
for fi in self.methods:
if fi.isconstructor:
return True
return False
def type_info(self):
return self.gen.get_type_info(self.nested_cppname)
class ConstInfo(GeneralInfo):
def __init__(self, gen, decl, addedManually=False, namespaces=[]):
GeneralInfo.__init__(self, gen, decl[0], namespaces)
self.fullname = decl[0].split(" ")[1]
if len(self.fullname.split(".")) > 1:
self.rustname = "_".join(self.fullname.split(".")[1:])
else:
self.rustname = self.fullname
self.cname = self.name.replace(".", "::")
self.value = decl[1]
self.addedManually = addedManually
# register
if self.isIgnored():
logging.info('ignored: %s', self)
elif not gen.get_const(self.name):
gen.consts.append(self)
def __repr__(self):
return Template("CONST $name=$value$manual").substitute(name=self.name,
value=self.value,
manual="(manual)" if self.addedManually else "")
def isIgnored(self):
for c in const_ignore_list:
if re.match(c, self.name):
return True
return False
def gen_rust(self):
if self.value.startswith('"'):
return "pub const %s:&'static str = %s;\n"%(self.rustname, self.value)
elif re.match("^(-?[0-9]+|0x[0-9A-F]+)$", self.value):
return "pub const %s:i32 = %s;\n"%(self.rustname, self.value)
return None
def gen_cpp_for_complex(self):
# only use C-constant dumping for unnested const
if len(self.fullname.split(".")) > 2:
return ""
else:
return """ printf("pub const %s:i32 = 0x%%x;\\n", %s);\n"""%(self.rustname, self.name)
class TypeInfo():
def __init__(self, gen, typeid):
self.gen = gen
self.typeid = typeid
self.is_string = typeid == "string"
self.is_primitive = typeid in primitives
self.is_ptr = typeid.startswith("Ptr::")
self.is_vector_of_vector = typeid.startswith("vector::vector::")
self.is_vector = typeid.startswith("vector::")
self.is_ignored = typeid.split("::")[-1] in class_ignore_list
self.class_info = None
if typeid in self.gen.classes:
self.class_info = self.gen.classes[typeid]
self.is_simple = self.class_info and self.class_info.simple
self.is_value = self.is_simple
for k in value_struct_types:
if k[1] == typeid:
self.is_value = True
self.is_boxed = not (self.is_value or self.is_simple
or self.is_primitive or self.is_string)
self.is_trait = self.class_info and not(self.is_value) and not(self.is_simple) and not self.class_info.has_constructor()
typeid_underscore = typeid.replace("::","_")
if self.is_value or self.is_simple:
self.cpptype = typeid
self.ctype = "cv_struct_" + typeid_underscore
self.rtype = self.rctype = self.rrvtype = typeid_underscore
elif self.is_primitive:
self.cpptype = typeid
self.ctype = primitives[typeid]["ctype"]
self.rtype = self.rctype = self.rrvtype = primitives[typeid]["rtype"]
elif self.is_vector_of_vector:
self.ctype = "void*"
self.rctype = "*mut c_void"
self.cpptype = "vector< vector<%s> >"%(typeid.split("::")[-1])
self.rtype = self.rrvtype = "VectorOfVectorOf%s"%(typeid.split("::")[2])
self.gen_template_wrapper_rust_struct()
elif self.is_vector:
self.ctype = "void*"
self.cpptype = "vector<%s>"%(typeid.split("::")[-1])
self.rctype = "*mut c_void"
self.rtype = self.rrvtype = "VectorOf%s"%(typeid.split("::")[1])
self.gen_template_wrapper_rust_struct()
elif self.is_ptr:
self.ctype = "void*"
self.rctype = "*mut c_void"
self.cpptype = "Ptr<%s>"%(typeid.split("::")[-1])
self.rtype = self.rrvtype = "PtrOf%s"%(typeid.split("::")[1])
self.gen_template_wrapper_rust_struct()
elif self.is_string:
self.ctype = "const char*"
self.cpptype = "string"
self.rtype = self.rctype = "*const ::libc::types::os::arch::c95::c_char"
self.rrvtype = "String"
else:
self.ctype = "void*"
self.cpptype = self.rtype = self.rrvtype = typeid
self.rctype = "*mut c_void"
def __repr__(self):
r = [ ]
if self.is_string: r.append("(string)")
if self.is_primitive: r.append("(prim)")
if self.is_simple: r.append("(simple)")
if self.is_value: r.append("(value)")
if self.is_vector: r.append("(vector)")
if self.is_vector_of_vector: r.append("(vector_of_vector)")
if self.is_ptr: r.append("(ptr)")
if self.is_trait: r.append("(trait)")
return self.typeid + " " + "".join(r)
def gen_template_wrapper_rust_struct(self):
with open(self.gen.output_path+"/"+self.rtype+".type.rs", "w") as f:
f.write("#[allow(dead_code)] pub struct %s { pub ptr: *mut c_void }\n"%(self.rtype));
if self.rtype.startswith("VectorOf"):
f.write(Template("""
extern "C" {
fn cv_new_$rtype() -> *mut c_void;
fn cv_delete_$rtype(ptr:*mut c_void) -> ();
fn cv_${rtype}_len(ptr:*mut c_void) -> i32;
}
impl $rtype {
pub fn new() -> $rtype {
unsafe { return $rtype { ptr:cv_new_$rtype() } };
}
pub fn len(&self) -> i32 {
unsafe { return cv_${rtype}_len(self.ptr); }
}
}
impl Drop for $rtype {
fn drop(&mut self) {
unsafe { cv_delete_$rtype(self.ptr) };
}
}\n""").substitute(rtype=self.rtype))
if self.rtype.startswith("VectorOf"):
with open(self.gen.output_path+"/"+self.rtype+".type.cpp", "w") as f:
f.write(Template("""
#include "opencv2/opencv_modules.hpp"
#include "opencv2/$module/$module.hpp"
using namespace cv;
extern "C" {
void* cv_new_$rtype() { return new std::$cpptype(); }
void cv_delete_$rtype(void* ptr) { delete (($cpptype*) ptr); }
int cv_${rtype}_len(void* ptr) { return (($cpptype*) ptr)->size(); }
}\n""").substitute(
rtype=self.rtype, cpptype=self.cpptype, module=self.gen.module))
#
# GENERATOR
#
class RustWrapperGenerator(object):
def __init__(self):
self.clear()
def clear(self):
self.module = ""
self.Module = ""
self.classes = { }
self.functions = [];
self.ported_func_list = []
self.skipped_func_list = []
self.consts = []
self.type_infos = {}
def get_class(self, classname):
return self.classes[classname]
def get_type_info(self, typeid):
if not typeid in self.type_infos:
self.type_infos[typeid] = TypeInfo(self, typeid)
return self.type_infos[typeid]
def get_const(self, name):
for c in self.consts:
if c.cname == name:
return c
return None
def add_decl(self, decl):
name = decl[0]
if name.startswith("struct") or name.startswith("class"):
ClassInfo(self, decl, namespaces=self.namespaces)
elif name.startswith("const"):
ConstInfo(self, decl, namespaces=self.namespaces)
else:
FuncInfo(self, decl, namespaces=self.namespaces)
def gen(self, srcfiles, module, output_path):
parser = hdr_parser.CppHeaderParser()
self.output_path = output_path
self.module = module
self.Module = module.capitalize()
includes = [];
for hdr in srcfiles:
decls = parser.parse(hdr)
self.namespaces = parser.namespaces
logging.info("\n\n===== Header: %s =====", hdr)
logging.info("Namespaces: %s", parser.namespaces)
if decls:
includes.append('#include "' + hdr + '"')
for decl in decls:
logging.info("\n--- Incoming ---\n%s", pformat(decl, 4))
self.add_decl(decl)
if module in ManualFuncs:
for decl in ManualFuncs[self.module]:
logging.info("\n--- Manual ---\n%s", pformat(decl, 4))
self.add_decl(decl)
logging.info("\n\n===== Generating... =====")
self.moduleCppTypes = StringIO()
self.moduleCppCode = StringIO()
self.moduleCppConsts = StringIO()
self.moduleRustCode = StringIO()
self.moduleRustExterns = StringIO()
for co in self.consts:
rust = co.gen_rust()
if rust:
self.moduleRustCode.write(rust)
else:
self.moduleCppConsts.write(co.gen_cpp_for_complex())
if self.moduleCppConsts.getvalue != "":
self.moduleRustCode.write(
"""include!(concat!(env!("OUT_DIR"), "/%s.consts.rs"));\n"""%(self.module)
)
for ci in self.classes.values():
if ci.nested:
self.gen_nested_class_decl(ci)
for c in value_struct_types:
if c[0] == module:
self.gen_value_struct(c)
for c in self.classes.values():
if c.simple:
self.gen_simple_class(c)
for fi in self.functions:
self.gen_func(fi)
if module in forced_boxed_classes:
for cb in forced_boxed_classes[module]:
self.gen_boxed_class(cb)
for ci in self.classes.values():
self.gen_class(ci)
with open(output_path+"/types.h", "a") as f:
f.write(self.moduleCppTypes.getvalue())
with open(output_path+"/" + self.module + ".consts.cpp", "w") as f:
f.write("""#include <cstdio>\n""")
f.write("""#include "opencv2/opencv_modules.hpp"\n""")
f.write("""#include "opencv2/%s/%s.hpp"\n"""%(module,module))
f.write("""using namespace cv;\n""")
f.write("int main(int argc, char**argv) {\n");
f.write(self.moduleCppConsts.getvalue())
f.write("}\n");
with open(output_path+"/"+module+".cpp", "w") as f:
f.write(Template(T_CPP_MODULE).substitute(m = module, M = module.upper(), code = self.moduleCppCode.getvalue(), includes = "\n".join(includes)))
with open(output_path+"/%s.externs.rs"%(module), "w") as f:
f.write("extern \"C\" {\n")
f.write(self.moduleRustExterns.getvalue())
f.write("}\n")
with open(output_path+"/"+module+".rs", "w") as f:
f.write(Template(T_RUST_MODULE).substitute(m = module, M = module.upper(), code = self.moduleRustCode.getvalue(), module_import = ("use ::sys::core::*;\n" if not module == "core" else "")))
with open(output_path+"/"+module+".txt", "w") as f:
f.write(self.makeReport())
def makeReport(self):
'''
Returns string with generator report
'''
report = StringIO()
total_count = len(self.ported_func_list)+ len(self.skipped_func_list)
report.write("PORTED FUNCs LIST (%i of %i):\n\n" % (len(self.ported_func_list), total_count))
report.write("\n".join(self.ported_func_list))
report.write("\n\nSKIPPED FUNCs LIST (%i of %i):\n\n" % (len(self.skipped_func_list), total_count))
report.write("".join(self.skipped_func_list))
return report.getvalue()
def is_ignored(self, type_name):
return type_name.split("::")[-1] in class_ignore_list
def gen_vector_struct_for(self, name):
struct_name = "cv_vector_of_"+name
self.defined_in_types_h.appand(struct_name)
self.moduleCppTypes.write
def gen_func(self, fi):
reason = fi.reason_to_skip()
if reason:
self.skipped_func_list.append("%s\n %s\n"%(fi,reason))
return
self.ported_func_list.append(fi.__repr__())
rv_header_type = fi.rv_header_type()
rv_info = self.get_type_info(rv_header_type)
self.moduleCppCode.write(fi.gen_cpp_prelude())
decl_c_args = "\n "
call_cpp_args = ""
if not fi.ci == None and not fi.isconstructor:
decl_c_args += self.get_type_info(fi.ci.name).ctype + " instance"
for a in fi.args:
atype = a.type_info()
if not decl_c_args.strip() == "":
decl_c_args+=",\n "
if not call_cpp_args == "":
call_cpp_args += ", "
rw = a.out == "O" or a.out == "IO"
arg_decl_star = not atype.is_boxed and rw
if atype.is_string:
decl_c_args += "const char *" + a.name
elif arg_decl_star:
decl_c_args += atype.ctype + " *" + a.name
else:
decl_c_args += atype.ctype + " " + a.name
if atype.is_boxed or atype.is_vector \
or atype.is_vector_of_vector or atype.is_ptr:
call_cpp_args += "*((%s*)%s)"%(atype.cpptype, a.name)
elif atype.is_string:
call_cpp_args += a.name
elif atype.is_value or atype.is_simple:
if arg_decl_star and a.pointer:
call_cpp_args += "reinterpret_cast<" + atype.cpptype + "*>(" + a.name + ")"
elif arg_decl_star and not a.pointer:
call_cpp_args += "*reinterpret_cast<" + atype.cpptype + "*>(" + a.name + ")"
elif a.pointer:
call_cpp_args += "reinterpret_cast<" + atype.cpptype + "*>(&" + a.name + ")"
else:
call_cpp_args += "*reinterpret_cast<" + atype.cpptype + "*>(&" + a.name + ")"
else:
if arg_decl_star and a.pointer:
call_cpp_args += a.name
elif not arg_decl_star and not a.pointer:
call_cpp_args += a.name
else:
call_cpp_args += "*" + a.name
# C function prototype
self.moduleCppCode.write("struct cv_return_value_%s %s(%s) {\n"%(rv_info.ctype.replace(" ","_").replace(":","_").replace(" ","_").replace("*", "_"), fi.c_name(), decl_c_args));
self.moduleCppCode.write(" try {\n");
# cpp method call with prefix
if fi.ci == None:
call_name = "cv::" + fi.cppname
elif fi.isconstructor and fi.ci.type_info().is_boxed:
call_name = fi.ci.nested_cppname
elif fi.cppname == "()":
call_name = "(*((%s*) instance))"%(self.get_type_info(fi.ci.name).cpptype)
else:
call_name = "((%s*) instance)->%s"%(self.get_type_info(fi.ci.name).cpptype, fi.cppname)
# actual call
if fi.type == "void":
self.moduleCppCode.write(" %s(%s);\n"%(call_name, call_cpp_args))
elif fi.isconstructor and rv_info.is_boxed:
self.moduleCppCode.write(" %s* cpp_return_value = new %s(%s);\n"%(rv_info.cpptype, call_name,
call_cpp_args));
elif fi.isconstructor and call_cpp_args != "":
self.moduleCppCode.write(" %s cpp_return_value(%s);\n"%(rv_info.cpptype, call_cpp_args));
elif fi.isconstructor:
self.moduleCppCode.write(" %s cpp_return_value;\n"%(rv_info.cpptype));
else:
self.moduleCppCode.write(" %s cpp_return_value = %s(%s);\n"%(rv_info.cpptype, call_name,
call_cpp_args));
self.gen_c_return_value_type(rv_info);
# return value
if fi.type == "void":
self.moduleCppCode.write(" return { NULL, 0 };\n");
elif rv_info.is_string:
self.moduleCppCode.write(" return { NULL, strdup(cpp_return_value.c_str()) };");
elif rv_info.is_boxed and not fi.isconstructor:
self.moduleCppCode.write(" return { NULL, new %s(cpp_return_value) };\n"%(rv_info.cpptype));
elif rv_info.is_boxed and fi.isconstructor:
self.moduleCppCode.write(" return { NULL, cpp_return_value };\n")
elif rv_info.is_value:
self.moduleCppCode.write(" return { NULL, *reinterpret_cast<cv_struct_%s*>(&cpp_return_value) };\n"%(rv_header_type.replace("::", "_")))
elif rv_info.is_vector:
self.moduleCppCode.write(" return { NULL, (void*) new %s(cpp_return_value) };\n"%(rv.info.cpptype));
else:
self.moduleCppCode.write(" return { NULL, cpp_return_value };\n");
self.moduleCppCode.write("} catch (cv::Exception& e) {\n");
self.moduleCppCode.write(" char* msg = strdup(e.what());\n");
self.moduleCppCode.write(" return { msg, 0 };\n");
self.moduleCppCode.write("} catch (...) {\n");
self.moduleCppCode.write(" char* msg = strdup(\"unspecified error in OpenCV guts\");\n");
self.moduleCppCode.write(" return { msg, 0 };\n");
self.moduleCppCode.write("}\n");
self.moduleCppCode.write("}\n\n");
# rust's extern C
self.moduleRustExterns.write(fi.gen_rust_extern())
# rust safe wrapper
self.moduleRustCode.write(fi.gen_rustdoc_default_args())
self.moduleRustCode.write(fi.gen_rust_wrapper())
def gen_value_struct_field(self, name, typ):
rsname = name
if rsname in ["box", "type"]:
rsname = "_" + rsname
if "[" in typ:
bracket = typ.index("[")
cppt = typ[:bracket]
ct = self.get_type_info(cppt).ctype
size = typ[bracket+1:-1]
rst = self.get_type_info(cppt).rtype
self.moduleCppTypes.write(" %s %s[%s];\n"%(ct, name, size))
self.moduleRustCode.write(" pub %s: [%s;%s],\n"%(rsname, rst, size))
else:
cppt = typ
ct = self.get_type_info(cppt).ctype
rst = self.get_type_info(cppt).rtype
self.moduleCppTypes.write(" %s %s;\n"%(ct, name))
self.moduleRustCode.write(" pub %s: %s,\n"%(rsname, rst))
def gen_value_struct(self, c):
self.moduleCppTypes.write("typedef struct cv_struct_%s {\n"%(c[1]))
self.moduleRustCode.write("#[repr(C)]#[derive(Debug,PartialEq)] pub struct %s {\n"%(c[1]))
for field in value_struct_types[c]:
self.gen_value_struct_field(field[0], field[1])
self.moduleCppTypes.write("} cv_struct_%s;\n\n"%(c[1]))
self.moduleRustCode.write("}\n")
def gen_simple_class(self,ci):
self.moduleCppTypes.write("typedef struct cv_struct_%s {\n"%(ci.nested_cname))
self.moduleRustCode.write("#[repr(C)]#[derive(Debug,PartialEq)] pub struct %s {\n"%(ci.nested_cname))
for p in ci.props:
self.gen_value_struct_field(p.name, p.ctype)
self.moduleRustCode.write("}\n")
self.moduleCppTypes.write("} cv_struct_%s;\n\n"%(ci.nested_cname))
def gen_c_return_value_type(self, typ):
with open(self.output_path+"/cv_return_value_"+typ.ctype.replace("*","_").replace(" ","_").replace(":","_")+".type.h", "w") as f:
f.write(Template("""struct cv_return_value_$sane {
char* error_msg;
$ctype result;
};\n""").substitute(
sane=typ.ctype.replace("*","_").replace(" ","_").replace(":","_"),
ctype="int" if typ.ctype == "void" else typ.ctype
))
with open(self.output_path+"/cv_return_value_"+typ.ctype.replace("*","_").replace(" ","_").replace(":","_")+".rv.rs", "w") as f:
f.write(Template("""#[repr(C)] pub struct cv_return_value_$sane {
pub error_msg: *const ::libc::types::os::arch::c95::c_char,
pub result: $rtype
}\n""").substitute(
sane=typ.ctype.replace("*","_").replace(" ","_").replace(":","_"),
rtype=typ.rctype or typ.rtype
))
def gen_boxed_class(self, name):
cname = name
cppname = name
if name in self.classes:
cname = self.classes[name].nested_cname
cppname = self.classes[name].nested_cppname
self.moduleRustExterns.write("pub fn cv_%s_delete_%s(ptr : *mut c_void);\n"%(self.module,cname));
self.moduleRustCode.write(Template("""
#[allow(dead_code)]
pub struct $cname {
pub ptr: *mut c_void
}
impl Drop for $cname {
fn drop(&mut self) {
unsafe { ::cv_${module}_delete_${cname}(self.ptr) };
}
}