aboutsummaryrefslogtreecommitdiff
path: root/mesalib/src/mapi/mapi_abi.py
blob: d783ed32f5a7d5a0ddabbcb0fd7734dcff7cd331 (plain)
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
#!/usr/bin/env python

# Mesa 3-D graphics library
#
# Copyright (C) 2010 LunarG Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
#
# Authors:
#    Chia-I Wu <olv@lunarg.com>

import sys
# make it possible to import glapi
import os
GLAPI = os.path.join(".", os.path.dirname(sys.argv[0]), "glapi/gen")
sys.path.append(GLAPI)

import re
from optparse import OptionParser
import gl_XML
import glX_XML


# number of dynamic entries
ABI_NUM_DYNAMIC_ENTRIES = 256

class ABIEntry(object):
    """Represent an ABI entry."""

    _match_c_param = re.compile(
            '^(?P<type>[\w\s*]+?)(?P<name>\w+)(\[(?P<array>\d+)\])?$')

    def __init__(self, cols, attrs, xml_data = None):
        self._parse(cols)

        self.slot = attrs['slot']
        self.hidden = attrs['hidden']
        self.alias = attrs['alias']
        self.handcode = attrs['handcode']
        self.xml_data = xml_data

    def c_prototype(self):
        return '%s %s(%s)' % (self.c_return(), self.name, self.c_params())

    def c_return(self):
        ret = self.ret
        if not ret:
            ret = 'void'

        return ret

    def c_params(self):
        """Return the parameter list used in the entry prototype."""
        c_params = []
        for t, n, a in self.params:
            sep = '' if t.endswith('*') else ' '
            arr = '[%d]' % a if a else ''
            c_params.append(t + sep + n + arr)
        if not c_params:
            c_params.append('void')

        return ", ".join(c_params)

    def c_args(self):
        """Return the argument list used in the entry invocation."""
        c_args = []
        for t, n, a in self.params:
            c_args.append(n)

        return ", ".join(c_args)

    def _parse(self, cols):
        ret = cols.pop(0)
        if ret == 'void':
            ret = None

        name = cols.pop(0)

        params = []
        if not cols:
            raise Exception(cols)
        elif len(cols) == 1 and cols[0] == 'void':
            pass
        else:
            for val in cols:
                params.append(self._parse_param(val))

        self.ret = ret
        self.name = name
        self.params = params

    def _parse_param(self, c_param):
        m = self._match_c_param.match(c_param)
        if not m:
            raise Exception('unrecognized param ' + c_param)

        c_type = m.group('type').strip()
        c_name = m.group('name')
        c_array = m.group('array')
        c_array = int(c_array) if c_array else 0

        return (c_type, c_name, c_array)

    def __str__(self):
        return self.c_prototype()

    def __cmp__(self, other):
        # compare slot, alias, and then name
        res = cmp(self.slot, other.slot)
        if not res:
            if not self.alias:
                res = -1
            elif not other.alias:
                res = 1

            if not res:
                res = cmp(self.name, other.name)

        return res

def abi_parse_xml(xml):
    """Parse a GLAPI XML file for ABI entries."""
    api = gl_XML.parse_GL_API(xml, glX_XML.glx_item_factory())

    entry_dict = {}
    for func in api.functionIterateByOffset():
        # make sure func.name appear first
        entry_points = func.entry_points[:]
        entry_points.remove(func.name)
        entry_points.insert(0, func.name)

        for name in entry_points:
            attrs = {
                    'slot': func.offset,
                    'hidden': not func.is_static_entry_point(name),
                    'alias': None if name == func.name else func.name,
                    'handcode': bool(func.has_different_protocol(name)),
            }

            # post-process attrs
            if attrs['alias']:
                try:
                    alias = entry_dict[attrs['alias']]
                except KeyError:
                    raise Exception('failed to alias %s' % attrs['alias'])
                if alias.alias:
                    raise Exception('recursive alias %s' % ent.name)
                attrs['alias'] = alias
            if attrs['handcode']:
                attrs['handcode'] = func.static_glx_name(name)
            else:
                attrs['handcode'] = None

            if entry_dict.has_key(name):
                raise Exception('%s is duplicated' % (name))

            cols = []
            cols.append(func.return_type)
            cols.append(name)
            params = func.get_parameter_string(name)
            cols.extend([p.strip() for p in params.split(',')])

            ent = ABIEntry(cols, attrs, func)
            entry_dict[ent.name] = ent

    entries = entry_dict.values()
    entries.sort()

    return entries

def abi_parse_line(line):
    cols = [col.strip() for col in line.split(',')]

    attrs = {
            'slot': -1,
            'hidden': False,
            'alias': None,
            'handcode': None,
    }

    # extract attributes from the first column
    vals = cols[0].split(':')
    while len(vals) > 1:
        val = vals.pop(0)
        if val.startswith('slot='):
            attrs['slot'] = int(val[5:])
        elif val == 'hidden':
            attrs['hidden'] = True
        elif val.startswith('alias='):
            attrs['alias'] = val[6:]
        elif val.startswith('handcode='):
            attrs['handcode'] = val[9:]
        elif not val:
            pass
        else:
            raise Exception('unknown attribute %s' % val)
    cols[0] = vals[0]

    return (attrs, cols)

def abi_parse(filename):
    """Parse a CSV file for ABI entries."""
    fp = open(filename) if filename != '-' else sys.stdin
    lines = [line.strip() for line in fp.readlines()
            if not line.startswith('#') and line.strip()]

    entry_dict = {}
    next_slot = 0
    for line in lines:
        attrs, cols = abi_parse_line(line)

        # post-process attributes
        if attrs['alias']:
            try:
                alias = entry_dict[attrs['alias']]
            except KeyError:
                raise Exception('failed to alias %s' % attrs['alias'])
            if alias.alias:
                raise Exception('recursive alias %s' % ent.name)
            slot = alias.slot
            attrs['alias'] = alias
        else:
            slot = next_slot
            next_slot += 1

        if attrs['slot'] < 0:
            attrs['slot'] = slot
        elif attrs['slot'] != slot:
            raise Exception('invalid slot in %s' % (line))

        ent = ABIEntry(cols, attrs)
        if entry_dict.has_key(ent.name):
            raise Exception('%s is duplicated' % (ent.name))
        entry_dict[ent.name] = ent

    entries = entry_dict.values()
    entries.sort()

    return entries

def abi_sanity_check(entries):
    if not entries:
        return

    all_names = []
    last_slot = entries[-1].slot
    i = 0
    for slot in xrange(last_slot + 1):
        if entries[i].slot != slot:
            raise Exception('entries are not ordered by slots')
        if entries[i].alias:
            raise Exception('first entry of slot %d aliases %s'
                    % (slot, entries[i].alias.name))
        handcode = None
        while i < len(entries) and entries[i].slot == slot:
            ent = entries[i]
            if not handcode and ent.handcode:
                handcode = ent.handcode
            elif ent.handcode != handcode:
                raise Exception('two aliases with handcode %s != %s',
                        ent.handcode, handcode)

            if ent.name in all_names:
                raise Exception('%s is duplicated' % (ent.name))
            if ent.alias and ent.alias.name not in all_names:
                raise Exception('failed to alias %s' % (ent.alias.name))
            all_names.append(ent.name)
            i += 1
    if i < len(entries):
        raise Exception('there are %d invalid entries' % (len(entries) - 1))

class ABIPrinter(object):
    """MAPI Printer"""

    def __init__(self, entries):
        self.entries = entries

        # sort entries by their names
        self.entries_sorted_by_names = self.entries[:]
        self.entries_sorted_by_names.sort(lambda x, y: cmp(x.name, y.name))

        self.indent = ' ' * 3
        self.noop_warn = 'noop_warn'
        self.noop_generic = 'noop_generic'
        self.current_get = 'entry_current_get'

        self.api_defines = []
        self.api_headers = ['"KHR/khrplatform.h"']
        self.api_call = 'KHRONOS_APICALL'
        self.api_entry = 'KHRONOS_APIENTRY'
        self.api_attrs = 'KHRONOS_APIATTRIBUTES'

        self.c_header = ''

        self.lib_need_table_size = True
        self.lib_need_noop_array = True
        self.lib_need_stubs = True
        self.lib_need_all_entries = True
        self.lib_need_non_hidden_entries = False

    def c_notice(self):
        return '/* This file is automatically generated by mapi_abi.py.  Do not modify. */'

    def c_public_includes(self):
        """Return includes of the client API headers."""
        defines = ['#define ' + d for d in self.api_defines]
        includes = ['#include ' + h for h in self.api_headers]
        return "\n".join(defines + includes)

    def need_entry_point(self, ent):
        """Return True if an entry point is needed for the entry."""
        # non-handcode hidden aliases may share the entry they alias
        use_alias = (ent.hidden and ent.alias and not ent.handcode)
        return not use_alias

    def c_public_declarations(self, prefix):
        """Return the declarations of public entry points."""
        decls = []
        for ent in self.entries:
            if not self.need_entry_point(ent):
                continue
            export = self.api_call if not ent.hidden else ''
            decls.append(self._c_decl(ent, prefix, True, export) + ';')

        return "\n".join(decls)

    def c_mapi_table(self):
        """Return defines of the dispatch table size."""
        num_static_entries = self.entries[-1].slot + 1
        return ('#define MAPI_TABLE_NUM_STATIC %d\n' + \
                '#define MAPI_TABLE_NUM_DYNAMIC %d') % (
                        num_static_entries, ABI_NUM_DYNAMIC_ENTRIES)

    def c_mapi_table_initializer(self, prefix):
        """Return the array initializer for mapi_table_fill."""
        entries = [self._c_function(ent, prefix)
                for ent in self.entries if not ent.alias]
        pre = self.indent + '(mapi_proc) '
        return pre + (',\n' + pre).join(entries)

    def c_mapi_table_spec(self):
        """Return the spec for mapi_init."""
        specv1 = []
        line = '"1'
        for ent in self.entries:
            if not ent.alias:
                line += '\\0"\n'
                specv1.append(line)
                line = '"'
            line += '%s\\0' % ent.name
        line += '";'
        specv1.append(line)

        return self.indent + self.indent.join(specv1)

    def _c_function(self, ent, prefix, mangle=False, stringify=False):
        """Return the function name of an entry."""
        formats = {
                True: { True: '%s_STR(%s)', False: '%s(%s)' },
                False: { True: '"%s%s"', False: '%s%s' },
        }
        fmt = formats[prefix.isupper()][stringify]
        name = ent.name
        if mangle and ent.hidden:
            name = '_dispatch_stub_' + str(ent.slot)
        return fmt % (prefix, name)

    def _c_function_call(self, ent, prefix):
        """Return the function name used for calling."""
        if ent.handcode:
            # _c_function does not handle this case
            formats = { True: '%s(%s)', False: '%s%s' }
            fmt = formats[prefix.isupper()]
            name = fmt % (prefix, ent.handcode)
        elif self.need_entry_point(ent):
            name = self._c_function(ent, prefix, True)
        else:
            name = self._c_function(ent.alias, prefix, True)
        return name

    def _c_decl(self, ent, prefix, mangle=False, export=''):
        """Return the C declaration for the entry."""
        decl = '%s %s %s(%s)' % (ent.c_return(), self.api_entry,
                self._c_function(ent, prefix, mangle), ent.c_params())
        if export:
            decl = export + ' ' + decl
        if self.api_attrs:
            decl += ' ' + self.api_attrs

        return decl

    def _c_cast(self, ent):
        """Return the C cast for the entry."""
        cast = '%s (%s *)(%s)' % (
                ent.c_return(), self.api_entry, ent.c_params())

        return cast

    def c_private_declarations(self, prefix):
        """Return the declarations of private functions."""
        decls = [self._c_decl(ent, prefix) + ';'
                for ent in self.entries if not ent.alias]

        return "\n".join(decls)

    def c_public_dispatches(self, prefix, no_hidden):
        """Return the public dispatch functions."""
        dispatches = []
        for ent in self.entries:
            if ent.hidden and no_hidden:
                continue

            if not self.need_entry_point(ent):
                continue

            export = self.api_call if not ent.hidden else ''

            proto = self._c_decl(ent, prefix, True, export)
            cast = self._c_cast(ent)

            ret = ''
            if ent.ret:
                ret = 'return '
            stmt1 = self.indent
            stmt1 += 'const struct mapi_table *_tbl = %s();' % (
                    self.current_get)
            stmt2 = self.indent
            stmt2 += 'mapi_func _func = ((const mapi_func *) _tbl)[%d];' % (
                    ent.slot)
            stmt3 = self.indent
            stmt3 += '%s((%s) _func)(%s);' % (ret, cast, ent.c_args())

            disp = '%s\n{\n%s\n%s\n%s\n}' % (proto, stmt1, stmt2, stmt3)

            if ent.handcode:
                disp = '#if 0\n' + disp + '\n#endif'

            dispatches.append(disp)

        return '\n\n'.join(dispatches)

    def c_public_initializer(self, prefix):
        """Return the initializer for public dispatch functions."""
        names = []
        for ent in self.entries:
            if ent.alias:
                continue

            name = '%s(mapi_func) %s' % (self.indent,
                    self._c_function_call(ent, prefix))
            names.append(name)

        return ',\n'.join(names)

    def c_stub_string_pool(self):
        """Return the string pool for use by stubs."""
        # sort entries by their names
        sorted_entries = self.entries[:]
        sorted_entries.sort(lambda x, y: cmp(x.name, y.name))

        pool = []
        offsets = {}
        count = 0
        for ent in sorted_entries:
            offsets[ent] = count
            pool.append('%s' % (ent.name))
            count += len(ent.name) + 1

        pool_str =  self.indent + '"' + \
                ('\\0"\n' + self.indent + '"').join(pool) + '";'
        return (pool_str, offsets)

    def c_stub_initializer(self, prefix, pool_offsets):
        """Return the initializer for struct mapi_stub array."""
        stubs = []
        for ent in self.entries_sorted_by_names:
            stubs.append('%s{ (void *) %d, %d, NULL }' % (
                self.indent, pool_offsets[ent], ent.slot))

        return ',\n'.join(stubs)

    def c_noop_functions(self, prefix, warn_prefix):
        """Return the noop functions."""
        noops = []
        for ent in self.entries:
            if ent.alias:
                continue

            proto = self._c_decl(ent, prefix, False, 'static')

            stmt1 = self.indent;
            space = ''
            for t, n, a in ent.params:
                stmt1 += "%s(void) %s;" % (space, n)
                space = ' '

            if ent.params:
                stmt1 += '\n';

            stmt1 += self.indent + '%s(%s);' % (self.noop_warn,
                    self._c_function(ent, warn_prefix, False, True))

            if ent.ret:
                stmt2 = self.indent + 'return (%s) 0;' % (ent.ret)
                noop = '%s\n{\n%s\n%s\n}' % (proto, stmt1, stmt2)
            else:
                noop = '%s\n{\n%s\n}' % (proto, stmt1)

            noops.append(noop)

        return '\n\n'.join(noops)

    def c_noop_initializer(self, prefix, use_generic):
        """Return an initializer for the noop dispatch table."""
        entries = [self._c_function(ent, prefix)
                for ent in self.entries if not ent.alias]
        if use_generic:
            entries = [self.noop_generic] * len(entries)

        entries.extend([self.noop_generic] * ABI_NUM_DYNAMIC_ENTRIES)

        pre = self.indent + '(mapi_func) '
        return pre + (',\n' + pre).join(entries)

    def c_asm_gcc(self, prefix, no_hidden):
        asm = []

        for ent in self.entries:
            if ent.hidden and no_hidden:
                continue

            if not self.need_entry_point(ent):
                continue

            name = self._c_function(ent, prefix, True, True)

            if ent.handcode:
                asm.append('#if 0')

            if ent.hidden:
                asm.append('".hidden "%s"\\n"' % (name))

            if ent.alias and not (ent.alias.hidden and no_hidden):
                asm.append('".globl "%s"\\n"' % (name))
                asm.append('".set "%s", "%s"\\n"' % (name,
                    self._c_function(ent.alias, prefix, True, True)))
            else:
                asm.append('STUB_ASM_ENTRY(%s)"\\n"' % (name))
                asm.append('"\\t"STUB_ASM_CODE("%d")"\\n"' % (ent.slot))

            if ent.handcode:
                asm.append('#endif')
            asm.append('')

        return "\n".join(asm)

    def output_for_lib(self):
        print self.c_notice()

        if self.c_header:
            print
            print self.c_header

        print
        print '#ifdef MAPI_TMP_DEFINES'
        print self.c_public_includes()
        print
        print self.c_public_declarations(self.prefix_lib)
        print '#undef MAPI_TMP_DEFINES'
        print '#endif /* MAPI_TMP_DEFINES */'

        if self.lib_need_table_size:
            print
            print '#ifdef MAPI_TMP_TABLE'
            print self.c_mapi_table()
            print '#undef MAPI_TMP_TABLE'
            print '#endif /* MAPI_TMP_TABLE */'

        if self.lib_need_noop_array:
            print
            print '#ifdef MAPI_TMP_NOOP_ARRAY'
            print '#ifdef DEBUG'
            print
            print self.c_noop_functions(self.prefix_noop, self.prefix_warn)
            print
            print 'const mapi_func table_%s_array[] = {' % (self.prefix_noop)
            print self.c_noop_initializer(self.prefix_noop, False)
            print '};'
            print
            print '#else /* DEBUG */'
            print
            print 'const mapi_func table_%s_array[] = {' % (self.prefix_noop)
            print self.c_noop_initializer(self.prefix_noop, True)
            print '};'
            print
            print '#endif /* DEBUG */'
            print '#undef MAPI_TMP_NOOP_ARRAY'
            print '#endif /* MAPI_TMP_NOOP_ARRAY */'

        if self.lib_need_stubs:
            pool, pool_offsets = self.c_stub_string_pool()
            print
            print '#ifdef MAPI_TMP_PUBLIC_STUBS'
            print 'static const char public_string_pool[] ='
            print pool
            print
            print 'static const struct mapi_stub public_stubs[] = {'
            print self.c_stub_initializer(self.prefix_lib, pool_offsets)
            print '};'
            print '#undef MAPI_TMP_PUBLIC_STUBS'
            print '#endif /* MAPI_TMP_PUBLIC_STUBS */'

        if self.lib_need_all_entries:
            print
            print '#ifdef MAPI_TMP_PUBLIC_ENTRIES'
            print self.c_public_dispatches(self.prefix_lib, False)
            print
            print 'static const mapi_func public_entries[] = {'
            print self.c_public_initializer(self.prefix_lib)
            print '};'
            print '#undef MAPI_TMP_PUBLIC_ENTRIES'
            print '#endif /* MAPI_TMP_PUBLIC_ENTRIES */'

            print
            print '#ifdef MAPI_TMP_STUB_ASM_GCC'
            print '__asm__('
            print self.c_asm_gcc(self.prefix_lib, False)
            print ');'
            print '#undef MAPI_TMP_STUB_ASM_GCC'
            print '#endif /* MAPI_TMP_STUB_ASM_GCC */'

        if self.lib_need_non_hidden_entries:
            all_hidden = True
            for ent in self.entries:
                if not ent.hidden:
                    all_hidden = False
                    break
            if not all_hidden:
                print
                print '#ifdef MAPI_TMP_PUBLIC_ENTRIES_NO_HIDDEN'
                print self.c_public_dispatches(self.prefix_lib, True)
                print
                print '/* does not need public_entries */'
                print '#undef MAPI_TMP_PUBLIC_ENTRIES_NO_HIDDEN'
                print '#endif /* MAPI_TMP_PUBLIC_ENTRIES_NO_HIDDEN */'

                print
                print '#ifdef MAPI_TMP_STUB_ASM_GCC_NO_HIDDEN'
                print '__asm__('
                print self.c_asm_gcc(self.prefix_lib, True)
                print ');'
                print '#undef MAPI_TMP_STUB_ASM_GCC_NO_HIDDEN'
                print '#endif /* MAPI_TMP_STUB_ASM_GCC_NO_HIDDEN */'

    def output_for_app(self):
        print self.c_notice()
        print
        print self.c_private_declarations(self.prefix_app)
        print
        print '#ifdef API_TMP_DEFINE_SPEC'
        print
        print 'static const char %s_spec[] =' % (self.prefix_app)
        print self.c_mapi_table_spec()
        print
        print 'static const mapi_proc %s_procs[] = {' % (self.prefix_app)
        print self.c_mapi_table_initializer(self.prefix_app)
        print '};'
        print
        print '#endif /* API_TMP_DEFINE_SPEC */'

class GLAPIPrinter(ABIPrinter):
    """OpenGL API Printer"""

    def __init__(self, entries):
        for ent in entries:
            self._override_for_api(ent)
        super(GLAPIPrinter, self).__init__(entries)

        self.api_defines = ['GL_GLEXT_PROTOTYPES']
        self.api_headers = ['"GL/gl.h"', '"GL/glext.h"']
        self.api_call = 'GLAPI'
        self.api_entry = 'APIENTRY'
        self.api_attrs = ''

        self.lib_need_table_size = False
        self.lib_need_noop_array = False
        self.lib_need_stubs = False
        self.lib_need_all_entries = False
        self.lib_need_non_hidden_entries = True

        self.prefix_lib = 'GLAPI_PREFIX'
        self.prefix_app = '_mesa_'
        self.prefix_noop = 'noop'
        self.prefix_warn = self.prefix_lib

        self.c_header = self._get_c_header()

    def _override_for_api(self, ent):
        """Override attributes of an entry if necessary for this
        printer."""
        # By default, no override is necessary.
        pass

    def _get_c_header(self):
        header = """#ifndef _GLAPI_TMP_H_
#define _GLAPI_TMP_H_
#ifdef USE_MGL_NAMESPACE
#define GLAPI_PREFIX(func)  mgl##func
#define GLAPI_PREFIX_STR(func)  "mgl"#func
#else
#define GLAPI_PREFIX(func)  gl##func
#define GLAPI_PREFIX_STR(func)  "gl"#func
#endif /* USE_MGL_NAMESPACE */

typedef int GLclampx;
#endif /* _GLAPI_TMP_H_ */"""

        return header

class ES1APIPrinter(GLAPIPrinter):
    """OpenGL ES 1.x API Printer"""

    def __init__(self, entries):
        super(ES1APIPrinter, self).__init__(entries)
        self.prefix_lib = 'gl'
        self.prefix_warn = 'gl'

    def _override_for_api(self, ent):
        if ent.xml_data is None:
            raise Exception('ES2 API printer requires XML input')
        ent.hidden = (ent.name not in \
            ent.xml_data.entry_points_for_api_version('es1')) \
            or ent.hidden
        ent.handcode = False

    def _get_c_header(self):
        header = """#ifndef _GLAPI_TMP_H_
#define _GLAPI_TMP_H_
typedef int GLclampx;
#endif /* _GLAPI_TMP_H_ */"""

        return header

class ES2APIPrinter(GLAPIPrinter):
    """OpenGL ES 2.x API Printer"""

    def __init__(self, entries):
        super(ES2APIPrinter, self).__init__(entries)
        self.prefix_lib = 'gl'
        self.prefix_warn = 'gl'

    def _override_for_api(self, ent):
        if ent.xml_data is None:
            raise Exception('ES2 API printer requires XML input')
        ent.hidden = (ent.name not in \
            ent.xml_data.entry_points_for_api_version('es2')) \
            or ent.hidden

        # This is hella ugly.  The same-named function in desktop OpenGL is
        # hidden, but it needs to be exposed by libGLESv2 for OpenGL ES 3.0.
        # There's no way to express in the XML that a function should be be
        # hidden in one API but exposed in another.
        if ent.name == 'GetInternalformativ':
            ent.hidden = False

        ent.handcode = False

    def _get_c_header(self):
        header = """#ifndef _GLAPI_TMP_H_
#define _GLAPI_TMP_H_
typedef int GLclampx;
#endif /* _GLAPI_TMP_H_ */"""

        return header

class SharedGLAPIPrinter(GLAPIPrinter):
    """Shared GLAPI API Printer"""

    def __init__(self, entries):
        super(SharedGLAPIPrinter, self).__init__(entries)

        self.lib_need_table_size = True
        self.lib_need_noop_array = True
        self.lib_need_stubs = True
        self.lib_need_all_entries = True
        self.lib_need_non_hidden_entries = False

        self.prefix_lib = 'shared'
        self.prefix_warn = 'gl'

    def _override_for_api(self, ent):
        ent.hidden = True
        ent.handcode = False

    def _get_c_header(self):
        header = """#ifndef _GLAPI_TMP_H_
#define _GLAPI_TMP_H_
typedef int GLclampx;
#endif /* _GLAPI_TMP_H_ */"""

        return header

class VGAPIPrinter(ABIPrinter):
    """OpenVG API Printer"""

    def __init__(self, entries):
        super(VGAPIPrinter, self).__init__(entries)

        self.api_defines = ['VG_VGEXT_PROTOTYPES']
        self.api_headers = ['"VG/openvg.h"', '"VG/vgext.h"']
        self.api_call = 'VG_API_CALL'
        self.api_entry = 'VG_API_ENTRY'
        self.api_attrs = 'VG_API_EXIT'

        self.prefix_lib = 'vg'
        self.prefix_app = 'vega'
        self.prefix_noop = 'noop'
        self.prefix_warn = 'vg'

def parse_args():
    printers = ['vgapi', 'glapi', 'es1api', 'es2api', 'shared-glapi']
    modes = ['lib', 'app']

    parser = OptionParser(usage='usage: %prog [options] <filename>')
    parser.add_option('-p', '--printer', dest='printer',
            help='printer to use: %s' % (", ".join(printers)))
    parser.add_option('-m', '--mode', dest='mode',
            help='target user: %s' % (", ".join(modes)))

    options, args = parser.parse_args()
    if not args or options.printer not in printers or \
            options.mode not in modes:
        parser.print_help()
        sys.exit(1)

    return (args[0], options)

def main():
    printers = {
        'vgapi': VGAPIPrinter,
        'glapi': GLAPIPrinter,
        'es1api': ES1APIPrinter,
        'es2api': ES2APIPrinter,
        'shared-glapi': SharedGLAPIPrinter,
    }

    filename, options = parse_args()

    if filename.endswith('.xml'):
        entries = abi_parse_xml(filename)
    else:
        entries = abi_parse(filename)
    abi_sanity_check(entries)

    printer = printers[options.printer](entries)
    if options.mode == 'lib':
        printer.output_for_lib()
    else:
        printer.output_for_app()

if __name__ == '__main__':
    main()