File: rule.cpp

package info (click to toggle)
sam2p 0.49.2-3%2Bdeb8u2
  • links: PTS, VCS
  • area: main
  • in suites: jessie
  • size: 3,084 kB
  • sloc: cpp: 14,410; ansic: 9,011; tcl: 973; sh: 692; makefile: 157; xml: 100; perl: 67
file content (1102 lines) | stat: -rw-r--r-- 49,235 bytes parent folder | download | duplicates (2)
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
/*
 * rule.cpp -- generic Rule handling
 * by pts@fazekas.hu at Fri Mar 15 21:13:47 CET 2002
 */

#ifdef __GNUC__
#pragma implementation
#endif

#include "rule.hpp"
#include "error.hpp"
#include <string.h> /* strlen() */

bool Rule::Cache::isPDF() const {
  return 80<=FileFormat && FileFormat<100;
}
bool Rule::Cache::isPDFB() const {
  return 90<=FileFormat && FileFormat<100;
}
bool Rule::Cache::isIndexed() const {
  return SampleFormat==Image::SF_Indexed1
      || SampleFormat==Image::SF_Indexed2
      || SampleFormat==Image::SF_Indexed4
      || SampleFormat==Image::SF_Indexed8;
}
bool Rule::Cache::isTransparentM() const {
  return SampleFormat==Image::SF_Mask
      || SampleFormat==Image::SF_Transparent2
      || SampleFormat==Image::SF_Transparent4
      || SampleFormat==Image::SF_Transparent8;
}
bool Rule::Cache::isOneBit() const {
  return SampleFormat==Image::SF_Mask
      || SampleFormat==Image::SF_Indexed1
      || SampleFormat==Image::SF_Gray1;
}
#if 0
bool Rule::Cache::is8() const {
  return SampleFormat==Image::SF_Indexed1
      || SampleFormat==Image::SF_Indexed2
      || SampleFormat==Image::SF_Indexed4
      || SampleFormat==Image::SF_Indexed8;
}
#endif
bool Rule::Cache::isGray() const {
  return SampleFormat==Image::SF_Gray1
      || SampleFormat==Image::SF_Gray2
      || SampleFormat==Image::SF_Gray4
      || SampleFormat==Image::SF_Gray8;
}
bool Rule::Cache::isRGB() const {
  return SampleFormat==Image::SF_Rgb1
      || SampleFormat==Image::SF_Rgb2
      || SampleFormat==Image::SF_Rgb4
      || SampleFormat==Image::SF_Rgb8;
}
bool Rule::Cache::isBinSB() const {
  return TransferEncoding==TE_Binary
      || TransferEncoding==TE_MSBfirst
      || TransferEncoding==TE_LSBfirst;
}
bool Rule::Cache::isPS() const {
  return FileFormat>=100;
}
bool Rule::Cache::isPSL2() const {
  return FileFormat>=120;
}
bool Rule::Cache::isPSL3() const {
  return FileFormat>=130;
}
bool Rule::Cache::hasPredictor() const {
  return Predictor!=PR_None;
}
bool Rule::Cache::isDCTE() const {
  /* Dat: _not_ CO_JAI */
  return Compression==CO_DCT || Compression==CO_IJG;
}
bool Rule::Cache::isZIPOK() const {
  return Compression!=CO_ZIP ||
       ( FileFormat!=FF_PSL1 && FileFormat!=FF_PSLC && FileFormat!=FF_PSL2
      && FileFormat!=FF_PDF10 && FileFormat!=FF_PDFB10
       );
}

static MiniPS::Dict *y_FileFormat=(MiniPS::Dict*)NULLP,
  *y_SampleFormat, *y_TransferEncoding,
  *y_Compression, *y_Scale;
static class ValueDeleter {
 public:
  ~ValueDeleter() {
    MiniPS::delete0((MiniPS::VALUE)y_FileFormat);
    MiniPS::delete0((MiniPS::VALUE)y_SampleFormat);
    MiniPS::delete0((MiniPS::VALUE)y_TransferEncoding);
    MiniPS::delete0((MiniPS::VALUE)y_Compression);
    MiniPS::delete0((MiniPS::VALUE)y_Scale);
  }
} value_deleter;

static const slen_t SampleFormat_MAXLEN=32;
static void init_dicts() {
  register MiniPS::Dict*y;
 
  /** TODO: Make this thread-safe. */
  if (y_FileFormat!=NULLP) return;

  y=y_FileFormat=new MiniPS::Dict();
  y->put("/PSL1",   MiniPS::Qinteger(Rule::Cache::FF_PSL1));
  y->put("/PSLC",   MiniPS::Qinteger(Rule::Cache::FF_PSLC));
  y->put("/PSL2",   MiniPS::Qinteger(Rule::Cache::FF_PSL2));
  y->put("/PSL3",   MiniPS::Qinteger(Rule::Cache::FF_PSL3));
  y->put("/PDFB1.0",MiniPS::Qinteger(Rule::Cache::FF_PDFB10));
  y->put("/PDFB1.2",MiniPS::Qinteger(Rule::Cache::FF_PDFB12));
  y->put("/PDF1.0", MiniPS::Qinteger(Rule::Cache::FF_PDF10));
  y->put("/PDF1.2", MiniPS::Qinteger(Rule::Cache::FF_PDF12));
  y->put("/GIF89a", MiniPS::Qinteger(Rule::Cache::FF_GIF89a));
  y->put("/GIF", MiniPS::Qinteger(Rule::Cache::FF_GIF89a));
  y->put("/Empty", MiniPS::Qinteger(Rule::Cache::FF_Empty));
  y->put("/Meta", MiniPS::Qinteger(Rule::Cache::FF_Meta));
  y->put("/PNM", MiniPS::Qinteger(Rule::Cache::FF_PNM));
  y->put("/PAM", MiniPS::Qinteger(Rule::Cache::FF_PAM));
  y->put("/PIP", MiniPS::Qinteger(Rule::Cache::FF_PIP));
  y->put("/JPEG", MiniPS::Qinteger(Rule::Cache::FF_JPEG));
  y->put("/JPG", MiniPS::Qinteger(Rule::Cache::FF_JPEG));
  y->put("/TIFF", MiniPS::Qinteger(Rule::Cache::FF_TIFF));
  y->put("/TIF", MiniPS::Qinteger(Rule::Cache::FF_TIFF));
  y->put("/PNG", MiniPS::Qinteger(Rule::Cache::FF_PNG));
  y->put("/XPM", MiniPS::Qinteger(Rule::Cache::FF_XPM));
  y->put("/BMP", MiniPS::Qinteger(Rule::Cache::FF_BMP));
  y->put("/XWD", MiniPS::Qinteger(Rule::Cache::FF_XWD));
  y->put("/X11", MiniPS::Qinteger(Rule::Cache::FF_X11));

  /* vvv strlen must be shorter then SampleFormat_MAXLEN */
  y=y_SampleFormat=new MiniPS::Dict();
  y->put("/Opaque", MiniPS::Qinteger(Image::SF_Opaque));
  y->put("/Transparent", MiniPS::Qinteger(Image::SF_Transparent));
  y->put("/Transparent2", MiniPS::Qinteger(Image::SF_Transparent2));
  y->put("/Transparent4", MiniPS::Qinteger(Image::SF_Transparent4));
  y->put("/Transparent8", MiniPS::Qinteger(Image::SF_Transparent8));
  y->put("/Gray1", MiniPS::Qinteger(Image::SF_Gray1));
  y->put("/Gray2", MiniPS::Qinteger(Image::SF_Gray2));
  y->put("/Gray4", MiniPS::Qinteger(Image::SF_Gray4));
  y->put("/Gray8", MiniPS::Qinteger(Image::SF_Gray8));
  y->put("/Indexed1", MiniPS::Qinteger(Image::SF_Indexed1));
  y->put("/Indexed2", MiniPS::Qinteger(Image::SF_Indexed2));
  y->put("/Indexed4", MiniPS::Qinteger(Image::SF_Indexed4));
  y->put("/Indexed8", MiniPS::Qinteger(Image::SF_Indexed8));
  y->put("/Mask", MiniPS::Qinteger(Image::SF_Mask));
  y->put("/Rgb1", MiniPS::Qinteger(Image::SF_Rgb1)); /* recommended */
  y->put("/Rgb2", MiniPS::Qinteger(Image::SF_Rgb2));
  y->put("/Rgb4", MiniPS::Qinteger(Image::SF_Rgb4));
  y->put("/Rgb8", MiniPS::Qinteger(Image::SF_Rgb8));
  y->put("/RGB1", MiniPS::Qinteger(Image::SF_Rgb1)); /* obsolete */
  y->put("/RGB2", MiniPS::Qinteger(Image::SF_Rgb2));
  y->put("/RGB4", MiniPS::Qinteger(Image::SF_Rgb4));
  y->put("/RGB8", MiniPS::Qinteger(Image::SF_Rgb8));
  y->put("/Asis", MiniPS::Qinteger(Image::SF_Asis));
  y->put("/Bbox", MiniPS::Qinteger(Image::SF_Bbox));

  y=y_TransferEncoding=new MiniPS::Dict();
  y->put("/Binary", MiniPS::Qinteger(Rule::Cache::TE_Binary));
  y->put("/ASCII", MiniPS::Qinteger(Rule::Cache::TE_ASCII));
  y->put("/Hex", MiniPS::Qinteger(Rule::Cache::TE_Hex)); /* recommended */
  y->put("/AHx", MiniPS::Qinteger(Rule::Cache::TE_Hex));
  y->put("/ASCIIHex", MiniPS::Qinteger(Rule::Cache::TE_Hex));
  y->put("/A85", MiniPS::Qinteger(Rule::Cache::TE_A85)); /* recommended */
  y->put("/ASCII85", MiniPS::Qinteger(Rule::Cache::TE_A85));
  y->put("/MSBfirst", MiniPS::Qinteger(Rule::Cache::TE_MSBfirst));
  y->put("/LSBfirst", MiniPS::Qinteger(Rule::Cache::TE_LSBfirst));

  y=y_Compression=new MiniPS::Dict();
  y->put("/ ", MiniPS::Qinteger(Rule::Cache::CO_None)); /* default */
  y->put("/None", MiniPS::Qinteger(Rule::Cache::CO_None)); /* recommended */
  y->put("/LZW", MiniPS::Qinteger(Rule::Cache::CO_LZW)); /* recommended */
  y->put("/ZIP", MiniPS::Qinteger(Rule::Cache::CO_ZIP)); /* recommended */
  y->put("/Flate", MiniPS::Qinteger(Rule::Cache::CO_ZIP));
  y->put("/Fl", MiniPS::Qinteger(Rule::Cache::CO_ZIP));
  y->put("/RLE", MiniPS::Qinteger(Rule::Cache::CO_RLE)); /* recommended */
  y->put("/RunLength", MiniPS::Qinteger(Rule::Cache::CO_RLE));
  y->put("/RunLengthEncoded", MiniPS::Qinteger(Rule::Cache::CO_RLE));
  y->put("/RL", MiniPS::Qinteger(Rule::Cache::CO_RLE));
  y->put("/PackBits", MiniPS::Qinteger(Rule::Cache::CO_RLE));
  y->put("/Fax", MiniPS::Qinteger(Rule::Cache::CO_Fax)); /* recommended */
  y->put("/CCITTFax", MiniPS::Qinteger(Rule::Cache::CO_Fax));
  y->put("/CCF", MiniPS::Qinteger(Rule::Cache::CO_Fax));
  y->put("/DCT", MiniPS::Qinteger(Rule::Cache::CO_DCT)); /* recommended */
  y->put("/JPEG",MiniPS::Qinteger(Rule::Cache::CO_IJG)); /* changed at Sun Jun 23 17:06:34 CEST 2002 */
  y->put("/JPG", MiniPS::Qinteger(Rule::Cache::CO_IJG)); /* changed at Sun Jun 23 17:06:34 CEST 2002 */
  y->put("/JFIF",MiniPS::Qinteger(Rule::Cache::CO_IJG)); /* changed at Sun Jun 23 17:06:34 CEST 2002 */
  y->put("/IJG", MiniPS::Qinteger(Rule::Cache::CO_IJG)); /* recommended */
  y->put("/JAI", MiniPS::Qinteger(Rule::Cache::CO_JAI)); /* recommended */

  y=y_Scale=new MiniPS::Dict();
  y->put("/ ",       MiniPS::Qinteger(Rule::CacheHints::SC_None)); /* default */
  y->put("/None",    MiniPS::Qinteger(Rule::CacheHints::SC_None));
  y->put("/OK",      MiniPS::Qinteger(Rule::CacheHints::SC_OK));
  y->put("/RotateOK",MiniPS::Qinteger(Rule::CacheHints::SC_RotateOK));
}

Image::sf_t Rule::Cache::parseSampleFormat(char const*s, slen_t slen) {
  /* Tue Jul  2 13:48:12 CEST 2002 */
  #if 0 /* BUGFIX for g++-3.4 (needs symbols __cxa_guard_acquire, __cxa_guard_release) */
    static char rule_dummy=(init_dicts(),0); /* call once per process */
    (void)rule_dummy;
  #else
    if (y_FileFormat==NULLP) init_dicts();
  #endif
  while (slen!=0 && s[0]=='/') { s++; slen--; }
  if (slen<=0 || slen>=SampleFormat_MAXLEN) return Image::SF_max;
  char buf[SampleFormat_MAXLEN];
  GenBuffer::tolower_memcpy(buf, s, slen);
  if (buf[0]>='a' && buf[0]<='z') buf[0]+='A'-'a'; /* capitalize 1st letter */
  MiniPS::VALUE v=y_SampleFormat->get(buf, slen);
  return (Image::sf_t) (v==MiniPS::Qundef ? Image::SF_max : MiniPS::int2ii(v));
}

char const* Rule::Cache::dumpFileFormat(ff_t FileFormat, co_t Compression) {
  switch (FileFormat) {
   case FF_eps:   return Compression==CO_ZIP ? "PSL3" : "PSL2";
   case FF_pdf:   return Compression==CO_ZIP ? "PDF1.2" : "PDF1.0";
   case FF_pdfb:  return Compression==CO_ZIP ? "PDFB1.2" : "PDFB1.0";
   case FF_PSL1:  return "PSL1";
   case FF_PSLC:  return "PSLC";
   case FF_PSL2:  return "PSL2";
   case FF_PSL3:  return "PSL3";
   case FF_PDFB10:return "PDFB1.0";
   case FF_PDFB12:return "PDFB1.2";
   case FF_PDF10: return "PDF1.0";
   case FF_PDF12: return "PDF1.2";
   case FF_GIF89a:return "GIF89a";
   case FF_PNM:   return "PNM";
   case FF_PAM:   return "PAM";
   case FF_PIP:   return "PIP";
   case FF_Empty: return "Empty";
   case FF_Meta:  return "Meta";
   case FF_JPEG:  return "JPEG";
   case FF_TIFF:  return "TIFF";
   case FF_PNG:   return "PNG";
   case FF_XPM:   return "XPM";
   case FF_BMP:   return "BMP";
   case FF_XWD:   return "XWD";
   case FF_X11:   return "X11";
  }
  return (char const*)NULLP;
}
char const* Rule::Cache::dumpTransferEncoding(te_t TransferEncoding) {
  switch (TransferEncoding) {
   case TE_Binary:  return "Binary";
   case TE_ASCII:   return "ASCII";
   case TE_Hex:     return "Hex";
   case TE_A85:     return "A85";
   case TE_MSBfirst:return "MSBfirst";
   case TE_LSBfirst:return "LSBfirst";
  }
  return (char const*)NULLP;
}
char const* Rule::Cache::dumpSampleFormat(Image::sf_t SampleFormat) {
  switch (SampleFormat) {
   case Image::SF_Opaque: return "Opaque";
   case Image::SF_Transparent: return "Transparent";
   case Image::SF_Gray1: return "Gray1";
   case Image::SF_Indexed1: return "Indexed1";
   case Image::SF_Mask: return "Mask";
   case Image::SF_Transparent2: return "Transparent2";
   case Image::SF_Gray2: return "Gray2";
   case Image::SF_Indexed2: return "Indexed2";
   case Image::SF_Transparent4: return "Transparent4";
   case Image::SF_Rgb1: return "Rgb1";
   case Image::SF_Gray4: return "Gray4";
   case Image::SF_Indexed4: return "Indexed4";
   case Image::SF_Transparent8: return "Transparent8";
   case Image::SF_Rgb2: return "Rgb2";
   case Image::SF_Gray8: return "Gray8";
   case Image::SF_Indexed8: return "Indexed8";
   case Image::SF_Rgb4: return "Rgb4";
   case Image::SF_Rgb8: return "Rgb8";
   case Image::SF_Asis: return "Asis";
   case Image::SF_Bbox: return "Bbox";
  }
  return (char const*)NULLP;
}
char const* Rule::Cache::dumpCompression(co_t Compression) {
  switch (Compression) {
   case CO_None:return "None";
   case CO_LZW: return "LZW";
   case CO_ZIP: return "ZIP";
   case CO_RLE: return "RLE";
   case CO_Fax: return "Fax";
   case CO_DCT: return "DCT";
   case CO_IJG: return "IJG";
   case CO_JAI: return "JAI";
  }
  return (char const*)NULLP;
}

char const* Rule::CacheHints::dumpScale(sc_t Scale) {
  switch (Scale) {
   case SC_None:    return "None";
   case SC_OK:      return "OK";
   case SC_RotateOK:return "RotateOK";
  }
  return (char const*)NULLP;
}

/* Checks and recovers Predictor. Called by scanf_dict.
 * @return Qundef if param invalid
 *         Qinteger(1) if param==Qundef
 *         valid Qinteger otherwise
 */
static MiniPS::VALUE better_predictor(MiniPS::VALUE v) {
  return v==MiniPS::Qundef ? MiniPS::Qinteger(1) /* PR_None */
       : v==MiniPS::Qinteger(1) || v==MiniPS::Qinteger(2) ||
         v==MiniPS::Qinteger(45) || v==MiniPS::Qinteger(55) ||
         ((v&1)!=0 && v>=MiniPS::Qinteger(10) && v<=MiniPS::Qinteger(15)) ? v
       : MiniPS::Qundef;
}
static MiniPS::VALUE better_xColors(MiniPS::VALUE v) {
  return v==MiniPS::Qundef ? MiniPS::Qinteger(0)
       : ((v&1)!=0 && v>=MiniPS::Qinteger(1) && v<=MiniPS::Qinteger(4)) ? v
       : MiniPS::Qundef;
}
static MiniPS::VALUE better_predictorBPC(MiniPS::VALUE v) {
  return v==MiniPS::Qundef ? MiniPS::Qinteger(0)
       : v==MiniPS::Qinteger(1) || v==MiniPS::Qinteger(2) ||
         v==MiniPS::Qinteger(4) || v==MiniPS::Qinteger(8) ? v
       : MiniPS::Qundef;
}
static MiniPS::VALUE better_effort(MiniPS::VALUE v) {
  return v==MiniPS::Qundef ? MiniPS::Qinteger(-1)
       : ((v&1)!=0 && v>=MiniPS::Qinteger(-1) && v<=MiniPS::Qinteger(9)) ? v
       : MiniPS::Qundef;
}
static MiniPS::VALUE better_k(MiniPS::VALUE v) {
  return v==MiniPS::Qundef ? MiniPS::Qinteger(0)
       : ((v&1)!=0 && v>=MiniPS::Qinteger(-2)) ? v /* -2 means: positive value marking the image height */
       : MiniPS::Qundef;
}
static MiniPS::VALUE better_quality(MiniPS::VALUE v) {
  return v==MiniPS::Qundef ? MiniPS::Qinteger(75)
       : ((v&1)!=0 && v>=MiniPS::Qinteger(0) && v<=MiniPS::Qinteger(100)) ? v
       : MiniPS::Qundef;
}
static MiniPS::VALUE better_colorTransform(MiniPS::VALUE v) {
  return v==MiniPS::Qundef ? MiniPS::Qinteger(3)
       : ((v&1)!=0 && v>=MiniPS::Qinteger(0) && v<=MiniPS::Qinteger(3)) ? v
       : MiniPS::Qundef;
}

void Rule::OutputRule::fromDict(MiniPS::VALUE dict_) {
  #if 0 /* BUGFIX for g++-3.4 (needs symbols __cxa_guard_acquire, __cxa_guard_release) */
    static char rule_dummy=(init_dicts(),0); /* call once per process */
    (void)rule_dummy;
  #else
    if (y_FileFormat==NULLP) init_dicts();
  #endif
  MiniPS::VALUE dummy;  (void)dummy;
  MiniPS::VALUE FileFormat, SampleFormat, WarningOK, TransferEncoding,
    Compression, Predictor, Transparent;
  MiniPS::VALUE PredictorColumns, PredictorColors, PredictorBPC, Effort, K,
    RecordSize, Quality, ColorTransform, TransferCPL,
    EncoderRows, EncoderColumns, EncoderBPL, EncoderColors, DCT, Scale;

  MiniPS::scanf_dict(dict_, /*show_warnings:*/true,
    "FileFormat",      MiniPS::S_SENUM,   y_FileFormat,       &FileFormat,
    "SampleFormat",    MiniPS::S_SENUM,   y_SampleFormat,     &SampleFormat,
    "WarningOK",       MiniPS::T_BOOLEAN, MiniPS::Qtrue,      &WarningOK,
    "TransferEncoding",MiniPS::S_SENUM,   y_TransferEncoding, &TransferEncoding,
    "Compression",     MiniPS::S_SENUM,   y_Compression,      &Compression,
    "Predictor",       MiniPS::S_FUNC,    better_predictor,   &Predictor,
    "Transparent",     MiniPS::S_RGBSTR,  MiniPS::Qnull,      &Transparent, /* force an RGB color transparent */
    "Hints",           MiniPS::T_DICT,    MiniPS::Qnull,      &dictHints,
    NULLP
  );
  dict=(MiniPS::Dict*)dict_;
  cache.FileFormat=(Rule::Cache::ff_t)MiniPS::int2ii(FileFormat);
  cache.SampleFormat=(Image::sf_t)MiniPS::int2ii(SampleFormat);
  cache.WarningOK=(Rule::Cache::ff_t)WarningOK==MiniPS::Qtrue;
  cache.TransferEncoding=(Rule::Cache::te_t)MiniPS::int2ii(TransferEncoding);
  cache.Compression=(Rule::Cache::co_t)MiniPS::int2ii(Compression);
  cache.Predictor=(Rule::Cache::pr_t)MiniPS::int2ii(Predictor);
  cache.Transparent=0x1000000UL; /* No extra transparency */
  if (Transparent!=MiniPS::Qnull) {
    unsigned char const*p=(unsigned char const*)(MiniPS::RSTRING(Transparent)->begin_());
    cache.Transparent=(p[0]<<16)+(p[1]<<8)+p[2];
  }
  //MiniPS::dump(Predictor);
  // fprintf(stderr,"cpred=%u\n", cache.Predictor);
  
  if ((MiniPS::VALUE)dictHints==MiniPS::Qnull) dict->put("/Hints", (MiniPS::VALUE)(dictHints=new MiniPS::Dict()));
  MiniPS::scanf_dict((MiniPS::VALUE)dictHints, /*show_warnings:*/true,
    "EncoderBPL",      MiniPS::S_PINTEGER,MiniPS::Qinteger(0),   &EncoderBPL,
    "EncoderColumns",  MiniPS::S_PINTEGER,MiniPS::Qinteger(0),   &EncoderColumns,
    "EncoderRows",     MiniPS::S_PINTEGER,MiniPS::Qinteger(0),   &EncoderRows,
    "EncoderColors",   MiniPS::S_FUNC,    better_xColors,        &EncoderColors,
    "PredictorColumns",MiniPS::S_PINTEGER,MiniPS::Qinteger(0),   &PredictorColumns,
    "PredictorColors", MiniPS::S_FUNC,    better_xColors,        &PredictorColors,
    "PredictorBPC",    MiniPS::S_FUNC,    better_predictorBPC,   &PredictorBPC,
    "Effort",          MiniPS::S_FUNC,    better_effort,         &Effort,
    "RecordSize",      MiniPS::S_UINTEGER,MiniPS::Qinteger(0),   &RecordSize,
    "K",               MiniPS::S_FUNC,    better_k,              &K,
    "Quality",         MiniPS::S_FUNC,    better_quality,        &Quality,
    "ColorTransform",  MiniPS::S_FUNC,    better_colorTransform, &ColorTransform,
    "TransferCPL",     MiniPS::S_PINTEGER,MiniPS::Qinteger(78),  &TransferCPL,
    "DCT",             MiniPS::T_DICT,    MiniPS::Qnull,         &DCT,
    "Scale",           MiniPS::S_SENUM,   y_Scale,               &Scale,
    "ImageDPI",        MiniPS::S_NUMBER,  MiniPS::Qinteger(72),  &cacheHints.ImageDPI,
    "TopMargin",       MiniPS::S_NUMBER,  MiniPS::Qinteger(0),   &cacheHints.TopMargin,
    "BottomMargin",    MiniPS::S_NUMBER,  MiniPS::Qinteger(0),   &cacheHints.BottomMargin,
    "LeftMargin",      MiniPS::S_NUMBER,  MiniPS::Qinteger(0),   &cacheHints.LeftMargin,
    "RightMargin",     MiniPS::S_NUMBER,  MiniPS::Qinteger(0),   &cacheHints.RightMargin,
    "LowerMargin",     MiniPS::S_NUMBER,  MiniPS::Qinteger(0),   &cacheHints.LowerMargin,

    "Comment",         MiniPS::T_STRING,  MiniPS::Qnull,         &cacheHints.Comment,
    "Title",           MiniPS::T_STRING,  MiniPS::Qnull,         &cacheHints.Title,
    "Subject",         MiniPS::T_STRING,  MiniPS::Qnull,         &cacheHints.Subject,
    "Author",          MiniPS::T_STRING,  MiniPS::Qnull,         &cacheHints.Author,
    "Creator",         MiniPS::T_STRING,  MiniPS::Qnull,         &cacheHints.Creator,
    "Producer",        MiniPS::T_STRING,  MiniPS::Qnull,         &cacheHints.Producer,
    "Created",         MiniPS::T_STRING,  MiniPS::Qnull,         &cacheHints.Created,
    "Produced",        MiniPS::T_STRING,  MiniPS::Qnull,         &cacheHints.Produced,
#if 0
    /* vvv parameters for /DCTEncode. Currently ignored. Obsoleted by /DCT */
    "Colors",          MiniPS::S_ANY,     MiniPS::Qnull,         &dummy,
    "HSamples",        MiniPS::S_ANY,     MiniPS::Qnull,         &dummy,
    "VSamples",        MiniPS::S_ANY,     MiniPS::Qnull,         &dummy,
    "QuantTables",     MiniPS::S_ANY,     MiniPS::Qnull,         &dummy,
    "QFactor",         MiniPS::S_ANY,     MiniPS::Qnull,         &dummy,
    "HuffTables",      MiniPS::S_ANY,     MiniPS::Qnull,         &dummy,
#endif
    NULLP
  );
  if (DCT==MiniPS::Qnull) dict->put("/DCT", DCT=(MiniPS::VALUE)new MiniPS::Dict());
  // cacheHints.DCT=(DCT==MiniPS::Qnull)? new MiniPS::Dict() : MiniPS::RDICT(DCT);
  if (cache.isPS()) {
    MiniPS::setDumpPS(cacheHints.TopMargin, true);
    MiniPS::setDumpPS(cacheHints.BottomMargin, true);
    MiniPS::setDumpPS(cacheHints.LeftMargin, true);
    MiniPS::setDumpPS(cacheHints.RightMargin, true);
    MiniPS::setDumpPS(cacheHints.LowerMargin, true);
  }
  cacheHints.DCT=MiniPS::RDICT(DCT);
  cacheHints.EncoderColumns=MiniPS::int2ii(EncoderColumns);
  cacheHints.EncoderBPL=MiniPS::int2ii(EncoderBPL);
  cacheHints.EncoderColors=MiniPS::int2ii(EncoderColors);
  cacheHints.EncoderRows=MiniPS::int2ii(EncoderRows);
  cacheHints.PredictorColumns=MiniPS::int2ii(PredictorColumns);
  cacheHints.PredictorColors=MiniPS::int2ii(PredictorColors);
  cacheHints.PredictorBPC=MiniPS::int2ii(PredictorBPC);
  cacheHints.Effort=MiniPS::int2ii(Effort);
  cacheHints.RecordSize=MiniPS::int2ii(RecordSize);
  cacheHints.K=MiniPS::int2ii(K);
  cacheHints.Quality=MiniPS::int2ii(Quality);
  cacheHints.ColorTransform=MiniPS::int2ii(ColorTransform);
  cacheHints.TransferCPL=MiniPS::int2ii(TransferCPL);
  cacheHints.Scale=(Rule::CacheHints::sc_t)MiniPS::int2ii(Scale);
  /* fprintf(stderr, "scaled=%g\n", (char*)MiniPS::scale(ImageDPI,1)); */
}

void Rule::OutputRule::doSampleFormat(Image::SampledInfo *info, bool separatep) {
  /* Dat: called from appliers.cpp:out_*_work(); the sample format is final */
  bool separatep2=
      separatep &&
    ( cache.SampleFormat==Image::SF_Transparent2
   || cache.SampleFormat==Image::SF_Transparent4
   || cache.SampleFormat==Image::SF_Transparent8);
  /* vvv simplifier added at Sat Jun 15 13:59:40 CEST 2002 */
  if (separatep2) cache.SampleFormat=Image::SF_Transparent8;
  if (!info->setSampleFormat(cache.SampleFormat, cache.WarningOK, /*TryOnly*/false, cache.Transparent))
    Error::sev(Error::EERROR) << "doSampleFormat: cannot set desired SampleFormat" << (Error*)0;
  Image::Sampled *img=info->getImg();
  slen_t n=1;
  if (separatep2) {
    info->separate();
    img=info->getImgs()[0];/*NULLP OK*/;
    n=info->getNncols();
  }
  if (img!=NULLP) {
    if (0==cacheHints.EncoderBPL) cacheHints.EncoderBPL=(slen_t)img->getWd()*img->getCpp()*img->getBpc();
    if (0==cacheHints.EncoderColumns) cacheHints.EncoderColumns=img->getWd();
    if (0==cacheHints.EncoderColors) cacheHints.EncoderColors=img->getCpp();
    if (0==cacheHints.EncoderRows) cacheHints.EncoderRows=img->getHt()*n;
    if (0==cacheHints.PredictorColumns) cacheHints.PredictorColumns=img->getWd();
    if (0==cacheHints.PredictorColors) cacheHints.PredictorColors=img->getCpp();
    if (0==cacheHints.PredictorBPC) cacheHints.PredictorBPC=img->getBpc();
    if (-2==cacheHints.K) cacheHints.K=img->getHt()*n;
  }
}

static char const*getDecode(Rule::Cache::co_t Compression) {
  return (Compression==Rule::Cache::CO_LZW ? "/LZWDecode"
         :Compression==Rule::Cache::CO_Fax ? "/CCITTFaxDecode"
         :Compression==Rule::Cache::CO_ZIP ? "/FlateDecode"
         :Compression==Rule::Cache::CO_RLE ? "/RunLengthDecode"
         :Compression==Rule::Cache::CO_DCT ? "/DCTDecode"
         :Compression==Rule::Cache::CO_IJG ? "/DCTDecode"
         :Compression==Rule::Cache::CO_JAI ? "/DCTDecode"
         :"");
}

/** For PDF BI inline images */
static char const*getBIDecode(Rule::Cache::co_t Compression) {
  return (Compression==Rule::Cache::CO_LZW ? "/LZW"
         :Compression==Rule::Cache::CO_Fax ? "/CCF"
         :Compression==Rule::Cache::CO_ZIP ? "/Fl"
         :Compression==Rule::Cache::CO_RLE ? "/RL"
         :Compression==Rule::Cache::CO_DCT ? "/DCT"
         :Compression==Rule::Cache::CO_IJG ? "/DCT"
         :Compression==Rule::Cache::CO_JAI ? "/DCT"
         :"");
}

void Rule::OutputRule::appendDecoderSpec(GenBuffer::Writable &out) const {
  assert(cacheHints.PredictorBPC!=0 && "doSampleFormat already called");
  bool hps=hasPredictorSpec();
  if (cache.isPDF()) {
    /* Dat: also implies appendTransferSpec() -- this is true only for PDF */
    if (!cache.isPDFB()) {
      if (cache.Compression==cache.CO_None) {
             if (cache.TransferEncoding==cache.TE_Hex) out << "/Filter/ASCIIHexDecode";
        else if (cache.TransferEncoding==cache.TE_A85) out << "/Filter/ASCII85Decode";
      } else if (cache.TransferEncoding!=cache.TE_Hex && cache.TransferEncoding!=cache.TE_A85) {
        out << "/Filter" << getDecode(cache.Compression);
        if (hps) { out << "/DecodeParms"; appendPredictorSpec(out); }
      } else { /* both TransferEncoding and Compression */
             if (cache.TransferEncoding==cache.TE_Hex) out << "/Filter[/ASCIIHexDecode";
        else if (cache.TransferEncoding==cache.TE_A85) out << "/Filter[/ASCII85Decode";
        else assert(0);
        out << getDecode(cache.Compression);
        if (hps) { out << "]/DecodeParms[null"; appendPredictorSpec(out); }
        /* ^^^ BUGFIX at Tue Jun  4 18:50:13 CEST 2002 */
        out << ']';
      }
    } else {
      if (cache.Compression==cache.CO_None) {
             if (cache.TransferEncoding==cache.TE_Hex) out << "/F/AHx";
        else if (cache.TransferEncoding==cache.TE_A85) out << "/F/A85";
      } else if (cache.TransferEncoding!=cache.TE_Hex && cache.TransferEncoding!=cache.TE_A85) {
        out << "/F" << getBIDecode(cache.Compression);
        if (hps) { out << "/DP"; appendPredictorSpec(out); }
      } else { /* both TransferEncoding and Compression */
             if (cache.TransferEncoding==cache.TE_Hex) out << "/F[/AHx";
        else if (cache.TransferEncoding==cache.TE_A85) out << "/F[/A85";
        else assert(0);
        out << getBIDecode(cache.Compression);
        if (hps) { out << "]/DP[null"; appendPredictorSpec(out); }
        out << ']';
      }
    } /* IFELSE PDFB */
  } else { /* NOT PDF */
    if (cache.Compression!=cache.CO_None) {
      appendPredictorSpec(out);
      out << getDecode(cache.Compression) << " filter";
    }
  } /* IFELSE PDF */
}

bool Rule::OutputRule::hasPredictorSpec() const {
  return cache.Compression==cache.CO_Fax
    || ((cache.Compression==cache.CO_ZIP || cache.Compression==cache.CO_LZW) &&
        cache.Predictor!=cache.PR_None);
}

void Rule::OutputRule::appendPredictorSpec(GenBuffer::Writable &out) const {
  assert(cacheHints.PredictorBPC!=0 && "doSampleFormat already called");
  if (cache.Compression==cache.CO_Fax)
    out << "<</K " << cacheHints.K
        << "/Columns " << cacheHints.EncoderBPL
        /* ^^^ EncoderColumns -> EncoderBPL BUGFIX at Wed Jul  3 20:05:12 CEST 2002 */
        << ">>";
  else if ((cache.Compression==cache.CO_ZIP || cache.Compression==cache.CO_LZW) &&
      cache.Predictor!=cache.PR_None)
   out<< "<</BitsPerComponent " << (unsigned)cacheHints.PredictorBPC
      << "/Columns " << cacheHints.PredictorColumns
      << "/Colors " << (unsigned)cacheHints.PredictorColors
      << (cache.Predictor==cache.PR_TIFF2 ? "/Predictor 2>>": "/Predictor 10>>");
}
void Rule::OutputRule::appendTransferSpec(GenBuffer::Writable &out) const {
       if (cache.TransferEncoding==cache.TE_Hex) out << "/ASCIIHexDecode filter";
  else if (cache.TransferEncoding==cache.TE_A85) out << "/ASCII85Decode filter";
}

/* --- */

static Rule::Applier *first=(Rule::Applier*)NULLP;

void Rule::register0(Rule::Applier *anew) {
  param_assert(anew!=NULLP);
  anew->next=first;
  first=anew;
}

unsigned Rule::printAppliers(GenBuffer::Writable &out) {
  unsigned num=0;
  Applier *p=first;
  while (p!=(Applier*)NULLP) {
    if (p->check_rule!=0/*NULLP*/ && p->work!=0/*NULLP*/) { num++;  out << ' ' << p->format; }
    p=p->next;
  }
  return num;
}

Rule::OutputRule* Rule::buildProfile(MiniPS::VALUE Profile, bool quiet) {
  param_assert(MiniPS::getType(Profile)==MiniPS::T_ARRAY);
  MiniPS::Array *pary=MiniPS::RARRAY(Profile);
  OutputRule *ret=new OutputRule[pary->getLength()+1], *or_=ret;
  /* ^^^ just enough place; there may be BAD items which won't be stored */
  MiniPS::VALUE *val;
  unsigned c;
  #if !USE_BUILTIN_LZW
    bool lzw_warning=true;
  #endif
  if (quiet) Error::pushPolicy((Error::level_t)0,
   /*printed_:*/Error::getTopPrinted()+0>Error::WARNING+0 ? Error::getTopPrinted() : Error::WARNING,
   Error::WARNING_DEFER, (GenBuffer::Writable*)NULLP); /* Dat: WARNING_DEFER untested */
  for (c=0, pary->getFirst(val); val!=NULLP; pary->getNext(val), c++) {
    /* val: each OutputRule of the Profile */
    or_->fromDict(*val);
    or_->c=c;
    Applier *p=first;
    // printf("building: %s...\n", p->format);
    #if !USE_BUILTIN_LZW
      if (or_->cache.Compression==or_->cache.CO_LZW && lzw_warning) {
        lzw_warning=false;
        Error::sev(Error::WARNING) << "buildProfile: please `configure --enable-lzw' for /Compression/LZW support in OutputRule #" << c << (Error*)0;
      }
    #endif
    while (p!=NULLP) {
      if (p->check_rule!=0/*NULLP*/) switch (p->check_rule(or_)) {
       case Applier::BAD:
        Error::sev(Error::WARNING_DEFER) << "buildProfile: ^^^ thus ignoring impossible OutputRule #" << c << (Error*)0;
        goto end_appliers;
       case Applier::MAYBE: case Applier::OK:
        if (p->work!=0/*NULLP*/) { or_++; goto end_appliers; }
        Error::sev(Error::WARNING_DEFER) << "buildProfile: ^^^ ignoring unimplemented OutputRule #" << c << (Error*)0;
       // case p->DONT_KNOW: ;
      }
      p=p->next; /* continue with other Appliers; hope other than DONT_KNOW */
    }
    Error::sev(Error::WARNING_DEFER) << "buildProfile: ignoring, no handlers for OutputRule #" << c << (Error*)0;
   end_appliers:
    if (quiet) delete Error::getRecorded();
  }
  if (quiet) { delete Error::getRecorded(); Error::popPolicy(); }
  if (or_==ret) Error::sev(Error::WARNING) << "buildProfile: all OutputRules in the .job file are useless" << (Error*)0;
  or_->dict=or_->dictHints=(MiniPS::Dict*)NULLP; /* end-of-list */
  return ret;
}

void Rule::applyProfile(GenBuffer::Writable& out, OutputRule*rule_list, Image::SampledInfo *sf) {
  OutputRule *or_;
  // unsigned tryc=0; /* Wed Jul  3 19:30:33 CEST 2002 */
  Error::pushPolicy((Error::level_t)0,
    /*printed_:*/Error::getTopPrinted()+0>Error::NOTICE+0 ? Error::getTopPrinted() : Error::NOTICE,
    Error::NOTICE_DEFER, (GenBuffer::Writable*)NULLP);
  Image::Sampled::rgb_t Transparent=0x1000000UL;
  if (rule_list->dict!=NULLP) {
    Transparent=rule_list->cache.Transparent;
    for (or_=rule_list+1; or_->dict!=NULLP; or_++) {
      if (Transparent!=rule_list->cache.Transparent) {
        /* Imp: make different copies, based on different or_->cache.Transparent -- or not? */
        Error::sev(Error::EERROR) << "applyProfile: ambiguous /Transparent" << (Error*)0;
      }
    }
  }
  /* Dat: -transparent ... makes the specified color transparent, but it cannot
   *      be used to remove transparenct
   */
  // printf("Transparent=0x%lx\n",Transparent);
  for (or_=rule_list; or_->dict!=NULLP; or_++) {
    /* ^^^ Try each OutputRule (or_) in reverse order of registration */
    Error::sev(Error::NOTICE_DEFER) << "applyProfile: trying OutputRule #" << or_->c << (Error*)0;
    if (sf->setSampleFormat(or_->cache.SampleFormat, or_->cache.WarningOK, /*TryOnly*/true, or_->cache.Transparent)) {
      /* image supports the SampleFormat of OutputRule */
      Applier *p=first;
      while (p!=NULLP) {
        /* ^^^ Try each output Applier for the current candidate OutputRule */
        if (p->check_rule!=0/*NULLP*/ && p->work!=0/*NULLP*/) {
          // tryc++;
          switch (p->work(out, or_, sf)) {
           case Applier::BAD:
            Error::sev(Error::WARNING) << "applyProfile: ^^^ thus cannot apply OutputRule #" << or_->c << (Error*)0;
            goto end_appliers;
           case Applier::OK:
            // if (or_->c!=0) {
            delete Error::getRecorded(); Error::popPolicy();
            Error::sev(Error::NOTICE) << "applyProfile: applied OutputRule #" << or_->c << (Error*)0;
            return;
           /* case Applier::MAYBE: impossible */
           // case p->DONT_KNOW: ;
          }
        }
        p=p->next; /* continue with other Appliers; hope other than DONT_KNOW */
     end_appliers: ;
      }
    } /* IF image supports SampleFormat */
  }
  Error::sev(Error::EERROR) << "applyProfile: invalid combination, no applicable OutputRule" << (Error*)0;
}

void Rule::deleteProfile(OutputRule*rule_list) {
  /* MiniPS::* objects still remain -- the caller (reader) will delete them. */
  delete [] rule_list;
}

/* --- */

//#include <string.h>
//static char xx[5000];

void Rule::writeData(GenBuffer::Writable&, GenBuffer::Writable&outstream, Image::SampledInfo *sf) {
  Image::Indexed **imgs=sf->getImgs();
  slen_t rlenht;
  if (imgs!=NULLP) {
    unsigned i;
    if (sf->getNncols()!=0 && 0!=(rlenht=imgs[0]->getRlen()*imgs[0]->getHt())) {
      // fprintf(stderr,"rh=%u nc=%u\n", rlenht, sf->getNncols());
      for (i=0;i<sf->getNncols();i++) outstream.vi_write(imgs[i]->getRowbeg(), rlenht);
      //for (i=0;i<sf->getNncols();i++) {
      //  memset(xx, 1<<(i), sizeof(xx));
      //  outstream.vi_write(xx, rlenht);
      //}
    }
  } else {
    Image::Sampled *img=sf->getImg();
    rlenht=img->getRlen()*img->getHt();
    if (rlenht!=0) outstream.vi_write(img->getRowbeg(), rlenht);
  }
  outstream.vi_write(0,0); /* Dat: frees cp, bp, (ap) */
}
void Rule::writePalData(GenBuffer::Writable& outpal, GenBuffer::Writable&outstream, Image::SampledInfo *sf) {
  Image::Sampled *img=sf->getImg();
  slen_t wlen=img->getRowbeg()-img->getHeadp();
  if (wlen!=0) outpal.vi_write(img->getHeadp(), wlen);
  writeData(outpal, outstream, sf);
  /* vvv replaced by the more generic writeData */
  // slen_t rlenht=img->getRlen()*img->getHt();
  // if (rlenht!=0) outstream.vi_write(img->getRowbeg(), rlenht);
  // outstream.vi_write(0,0); /* Dat: frees cp, bp, (ap) */
}

/** Returns a divisor of v1*v2 near 4096 */
static slen_t near_div(slen_t v1, slen_t v2) {
  static const slen_t LOW=2048, MID=4096, HIGH=8192;
  slen_t d, p;
  if (v1>v2) { d=v1; v1=v2; v2=d; }
  if (LOW<=v2 && v2<=HIGH) return v2; /* larger */
  if (LOW<=v1 && v1<=HIGH) return v1; /* smaller */
  if ((p=v1*v2)<=HIGH) return p; /* smaller */
  for (d=MID;d<=HIGH;d++)  if (p%d==0) return d;
  for (d=MID-1;d>=LOW;d--) if (p%d==0) return d;
  return v1; /* the smaller one */
}

/** Basicly out.format("%g", (double)n/255);, but we don't want to depend on
 * floating point arithmetic of the underlying architecture.
 */
static void div255(GenBuffer::Writable& out, unsigned n) {
  char tmp[7];
  unsigned abc;
  param_assert(n<=255);
  tmp[0]='0'; tmp[1]='.'; tmp[3]='\0';
  if (n%51!=0) {
    /* Divisors of 255: 1, 3, 5, 15, 17, 51, 85, 255.
     *   0/255 == "0"       51/255 == "0.2"
     * 102/255 == "0.4"    153/255 == "0.6"
     * 204/255 == "0.8"    255/255 == "1"
     * All other k/255 are infinite as a decimal fraction.
     * 1000 > 2*255, so 3 digits after '.' is enough.
     */
    assert(n<=254);
   #if 0
    abc=(127L+1000*n)/255;
    tmp[2]='0'+abc/100;
    tmp[3]='0'+(abc/10)%10;
    tmp[4]='0'+abc%10;
    tmp[5]='\0';
   #else
    abc=(127L+10000*n)/255;
    tmp[2]='0'+abc/1000;
    tmp[3]='0'+(abc/100)%10;
    tmp[4]='0'+(abc/10)%10;
    tmp[5]='0'+abc%10;
    tmp[6]='\0';
   #endif
  } else if (n<153) {
    if (n<51) tmp[1]='\0';
    else if (n>51) tmp[2]='4';
    else tmp[2]='2';
  }
  else if (n<204) tmp[2]='6';
  else if (n>204) { tmp[0]='1'; tmp[1]='\0'; }
  else tmp[2]='8';
  out << tmp;
}

void Rule::writeTTE(
 GenBuffer::Writable& out,
 GenBuffer::Writable&outpal,
 GenBuffer::Writable&outstream,
 char const*template_, Rule::OutputRule*or_, Image::SampledInfo *sf, stream_writer_t stream_writer, char const*const*strings) {
  unsigned int i, j;
  register char const*p;
  char *r;
  Image::Sampled *img=sf->getImg();
  param_assert(template_!=(const char*)NULLP);
  p=template_;
  bool nzp, scp;
  SimBuffer::B scf;
  while (1) {  
    assert(template_==p);
    while (*p!='`' && *p!='\0') p++; /* '`' is the escape character */
    if (p!=template_) out.vi_write(template_, p-template_);
    if (*p++=='\0') break;
    switch (*p++) {
     case '\0':
      p--; /* fall through */
     case '`':
      out.vi_write("`", 1); break;
     case '#': /* number of non-transparent colors of /Indexed*, /Transparent* */
      out << sf->getNncols(); break;
     case 'p': /* 3*(number of non-transparent colors of /Indexed*, /Transparent*) */
      out << (3*sf->getNncols()); break;
     case 'P': /* number of palette bytes (including the transparent color) */
      out << img->getRowbeg()-img->getHeadp(); break;
     case '0': case '1': case '2': /* arbitrary, user-defined string */
      param_assert(strings!=(char const*const*)NULLP);
      out << strings[p[-1]-'0']; break;
     case 'C': /* PDF /Procset entries */
      if (or_->cache.isIndexed()) out << "/ImageI";
      else if (or_->cache.isGray()) out << "/ImageB";
      else out << "/ImageC"; /* SF_Rgb*, SF_Asis etc. */
      break;
     case 'i': /* PS image or colorimage operator */
      out << (or_->cache.isGray() ? "image"
            : or_->cache.SampleFormat==Image::SF_Mask || or_->cache.SampleFormat==Image::SF_Indexed1 ? "imagemask"
            : "false 3 colorimage");
      break;
     case 'I': /* PS warning for usage of colorimage operator */
       // if (!or_->cache.isGray()) out << "% PSLC required\n";
       if (!or_->cache.isGray() && !or_->cache.isTransparentM()) out << "%%Extensions: CMYK\n";
       break;
#if 0
     case "p:invalid": /* optional predictor specification */
      { unsigned char pred=or_->cache.Predictor;
             if (pred== 2) out << "/Predictor 2";  /* TIFF predictor */
        else if (pred>=10) out << "/Predictor 10"; /* any PNG predictor */
      }
#endif
     case 'w': /* image width, decimal */
      out << img->getWd();
      break;
     case 'h': /* image height, decimal */
      out << img->getHt();
      break;
     case '?': /* a divisor of rlen*height near 4096 */
      if (sf->getImgs()!=NULLP) { /* /Transparent+ */
        out << near_div(sf->getImgs()[0]->getRlen(), img->getHt());
        /* Dat: `img->getHt()*sf->getNncols()' would be wrong */
      } else {
        out << near_div(img->getRlen(), img->getHt());
      }
      break;
     case 'B': /* Clean7Bits or Binary; Sun Jun 23 18:55:35 CEST 2002 */
      out << (or_->cache.isPDF() ? (or_->cache.isBinSB() ? "%\307\354\217\242\n" : "")
                                 : (or_->cache.isBinSB() ? "Binary" : "Clean7Bit"));
      break;
     case 'b': /* image bpc, decimal */
      /* added "true"|"false" for sam2p-0.39 at Sun Sep 22 17:49:25 CEST 2002 */
      if (or_->cache.SampleFormat==Image::SF_Mask) out << "false";
      else if (or_->cache.SampleFormat==Image::SF_Indexed1) out << "true";
      else out << (unsigned)img->getBpc();
      break;
     case 'c': /* image cpp, decimal */
      out << (unsigned)img->getCpp();
      break;
     case 'd': /* device-specific color-space name */
      out << Image::Sampled::cs2devcs(img->getCs());
      break;
     case 't': /* closefile specification in PostScript */
      if (or_->cache.Compression!=or_->cache.CO_None) out << " F closefile";
      if (or_->cache.TransferEncoding!=or_->cache.TE_Binary) out << " T closefile";
      break;
     case 'T': /* TransferEncoding specification in PostScript */
      or_->appendTransferSpec(out);
      break;
     case 'F': /* decoding filter specification in PostScript */
      or_->appendDecoderSpec(out);
      break;
     case 'O': /* 0..1 /Decode values */
      i=1;
      emit_Decode:
      j=img->getCpp(); 
      out << "0 " << i;
      while (j--!=1) out << " 0 " << i;
      break;
     case 'D': /* 0..max-1 /Decode values for indexed, 0..1 for others */
      i=(or_->cache.isIndexed())?(1<<img->getBpc())-1:1;
      goto emit_Decode;
     case 'S': /* image data stream */
      stream_writer(outpal, outstream, sf);
      break;
     case 'g': /* PDF 0..1 RGB triplet of the 0th palette color */
      assert(img->getTy()==img->TY_INDEXED);
      r=img->getHeadp();
      goto appG;
     case 'G': /* PDF 0..1 RGB triplet of the 1st palette color */
      assert(img->getTy()==img->TY_INDEXED);
      r=img->getHeadp()+3;
     appG:
      div255(out, (unsigned char)r[0]); out << ' ';
      div255(out, (unsigned char)r[1]); out << ' ';
      div255(out, (unsigned char)r[2]);
      break;
     case 'r': /* PS 0..1 RGB triplet of the 0th palette color */
      assert(img->getTy()==img->TY_INDEXED);
      r=img->getHeadp();
      out << (unsigned)(unsigned char)r[0] << " 255 div "
          << (unsigned)(unsigned char)r[1] << " 255 div "
          << (unsigned)(unsigned char)r[2] << " 255 div";
      break;
     case 'R': /* PS code for setting up bg and fg colors for an imagemask */
      /* formerly: PS 0..1 RGB triplet of the 1st palette color */
      /* changed at Sun Sep 22 18:02:41 CEST 2002 */
      if (or_->cache.SampleFormat==Image::SF_Mask || or_->cache.SampleFormat==Image::SF_Indexed1) {
        assert(img->getTy()==img->TY_INDEXED);
        r=img->getHeadp();
        out << (unsigned)(unsigned char)r[0] << " 255 div " /* 0th palette color */
            << (unsigned)(unsigned char)r[1] << " 255 div "
            << (unsigned)(unsigned char)r[2] << " 255 div setrgbcolor\n";
        if (or_->cache.SampleFormat==Image::SF_Indexed1) {
          out << "0 0 moveto\n"
              << img->getWd() << " 0 lineto\n0 "
              << img->getHt() << " rlineto\n-"
              << img->getWd() << " 0 rlineto\nclosepath fill\n"
              << (unsigned)(unsigned char)r[3] << " 255 div " /* 1st palette color */
              << (unsigned)(unsigned char)r[4] << " 255 div "
              << (unsigned)(unsigned char)r[5] << " 255 div\nsetrgbcolor\n";
        }
      }
      break;
     case 'E': /* EPS header for unscaled PS files */
      if (or_->cacheHints.Scale==or_->cacheHints.SC_None) out << " EPSF-3.0";
      break;
     case 'X': /* BoundingBox for EPS, MediaBox for PDF */
      if (or_->cache.isPDF()) {
        // out << "0 0 ";
        out << "0 ";
        goto do_bbox;
      } else if (or_->cacheHints.Scale==or_->cacheHints.SC_None) {
        /* It is no point to start the BoundingBox of EPS files at
         * (LeftMargin,BottomMargin). The effect would be the same as
         * specifying no margins at all.  Our choice is better: the
         * BoundingBox contains the image and the margins too.
         */
        // out << "%%BoundingBox: 0 0 ";
        out << "%%BoundingBox: 0 ";
       do_bbox:
        // out << MiniPS::RVALUE(or_->cacheHints.LowerMargin) << ';'; /* SUXX: this would put `1 72 mul' */
        // out << MiniPS::RVALUE(or_->cacheHints.BottomMargin) << ';'; /* SUXX: this would put `1 72 mul' */
        MiniPS::dumpAdd3(out, MiniPS::Qinteger(0), MiniPS::Qinteger(0), MiniPS::Qinteger(0), or_->cacheHints.LowerMargin, or_->cacheHints.BottomMargin, 1);
        out << ' ';
        MiniPS::dumpAdd3(out, or_->cacheHints.ImageDPI, MiniPS::Qinteger(img->getWd()),
          or_->cacheHints.LeftMargin, or_->cacheHints.RightMargin, MiniPS::Qinteger(0), 2);
        out << ' ';
        MiniPS::dumpAdd3(out, or_->cacheHints.ImageDPI, MiniPS::Qinteger(img->getHt()),
          or_->cacheHints.TopMargin, or_->cacheHints.LowerMargin, MiniPS::Qinteger(0), 2);
        if (!or_->cache.isPDF()) out << '\n';
      }
      break;
     case 's': /* scaling to a full PostScript page or translation for PDF and EPS */
      nzp=!(MiniPS::isZero(or_->cacheHints.LowerMargin)
         && MiniPS::isZero(or_->cacheHints.TopMargin));
      scp=!MiniPS::isEq(or_->cacheHints.ImageDPI, 72) &&
          !MiniPS::isEq(or_->cacheHints.ImageDPI, -72);

      if (or_->cache.isPDF()) {
        SimBuffer::B scf;
        if (scp) MiniPS::dumpScale(scf, or_->cacheHints.ImageDPI);
            else scf << 'x';
        if (nzp || scp) out << " " << scf << " 0 0 " << scf << " " << MiniPS::RVALUE(or_->cacheHints.LeftMargin)
                            << ' ' << MiniPS::RVALUE(or_->cacheHints.LowerMargin)
                     << " cm"; /* translate */
      } else switch (or_->cacheHints.Scale) {
       case Rule::CacheHints::SC_None:
        if (nzp) out << '\n' << MiniPS::RVALUE(or_->cacheHints.LeftMargin)
                     << ' '  << MiniPS::RVALUE(or_->cacheHints.LowerMargin)
                     << " translate";
        if (scp) {
          MiniPS::dumpScale(scf, or_->cacheHints.ImageDPI);
          out << '\n' << scf << " dup scale";
        }
        break;
       case Rule::CacheHints::SC_OK:
        /* from pshack/big.ps */
        out <<"\n6 dict begin currentpagedevice/PageSize get dup 0 get\n " << MiniPS::RVALUE(or_->cacheHints.LeftMargin) << " sub " << MiniPS::RVALUE(or_->cacheHints.RightMargin) << " sub/w exch\n"
               " def 1 get " << MiniPS::RVALUE(or_->cacheHints.TopMargin) << " sub " << MiniPS::RVALUE(or_->cacheHints.BottomMargin) << " sub/h exch\n"
               " def/x " << img->getWd() << " def/y " << img->getHt() <<  " def " << MiniPS::RVALUE(or_->cacheHints.LeftMargin) << ' ' << MiniPS::RVALUE(or_->cacheHints.BottomMargin) << " translate x h\n"
               " mul y w mul gt{w x 0 h y w mul x div sub 2 div}{h y w x h mul y div sub 2 div\n"
               " 0}ifelse translate div dup scale\nend";
        break;
       case Rule::CacheHints::SC_RotateOK:
        /* from pshack/big.ps */
        out <<"\n6 dict begin currentpagedevice/PageSize get dup 0 get\n " << MiniPS::RVALUE(or_->cacheHints.LeftMargin) << " sub " << MiniPS::RVALUE(or_->cacheHints.RightMargin) << " sub/w exch\n"
               " def 1 get " << MiniPS::RVALUE(or_->cacheHints.TopMargin) << " sub " << MiniPS::RVALUE(or_->cacheHints.BottomMargin) << " sub/h exch\n"
               " def/x " << img->getWd() << " def/y " << img->getHt() <<  " def " << MiniPS::RVALUE(or_->cacheHints.LeftMargin) << ' ' << MiniPS::RVALUE(or_->cacheHints.BottomMargin) << "/b y h mul x\n"
               " w mul gt def b{w y}{h x}ifelse div/c x h mul y w mul gt def c{w x}{h y}ifelse\n"
               " div gt{h add translate -90 rotate b{w y h x w mul y div sub 2 div 0}{h\n"
               " x 0 w y h mul x div sub 2 div}}{translate c{w x 0 h y w mul x div sub 2 div}{h\n"
               " y w x h mul y div sub 2 div 0}}ifelse ifelse translate div dup scale\nend";
        break;
      }
      break;
     default:
      Error::sev(Error::EERROR) << "writeTTE: unknown escape: " << (char)p[-1] << (Error*)0;
    }
    template_=p;
  }
}

/** by pts@fazekas.hu at Mon Apr 15 22:31:03 CEST 2002 */
void Rule::writeTTM(
 Filter::VerbatimE &outve,
 GenBuffer::Writable&outpal,
 GenBuffer::Writable&outstream,
 MiniPS::Array *chunkArray,
 Rule::OutputRule*or_,
 Image::SampledInfo *sf,
 stream_writer_t stream_writer,
 char const*const*strings) {
  static const unsigned MAXLEN=64;
  /* Imp: use heap instead of stack space */
  slen_t offsets[MAXLEN+1]; /* 260 bytes stack */
  SimBuffer::B chunks[MAXLEN]; /* <=1024 bytes stack; default constructor */
  MiniPS::VALUE *chunk;
  param_assert(chunkArray!=NULLP);
  // param_assert(chunkArray->getLength()<=MAXLEN);
  if (chunkArray->getLength()>(int)MAXLEN) Error::sev(Error::EERROR) << "writeTTM: TTM too long" << (Error*)0;
  GenBuffer::Writable& out=outve.getOut();
  MiniPS::ii_t i, ii;
  for (chunkArray->getFirst(chunk), i=0; chunk!=NULLP; chunkArray->getNext(chunk), i++) {
    if (MiniPS::getType(*chunk)==MiniPS::T_ARRAY) {
      outve.setOut(chunks[i]);
      writeTTM(outve, outpal, outstream, MiniPS::RARRAY(*chunk), or_, sf, stream_writer, strings);
    }
  }
  for (chunkArray->getFirst(chunk), offsets[i=0]=0; chunk!=NULLP; chunkArray->getNext(chunk), i++) {
    switch (MiniPS::getType(*chunk)) {
     case MiniPS::T_ARRAY:
      break;
     case MiniPS::T_STRING: /* always null-terminated */
      outve.setOut(chunks[i]);
      writeTTE(outve, outpal, outstream, MiniPS::RSTRING(*chunk)->begin_(), or_, sf, stream_writer, strings);
      break;
     case MiniPS::T_INTEGER:
      if (0==(ii=MiniPS::int2ii(*chunk))) Error::sev(Error::EERROR) << "writeTTM: zero is an invalid chunk" << (Error*)0;
      if (ii>0) { /* an offset */
        if (ii>i) Error::sev(Error::EERROR) << "writeTTM: cannot predict chunk offset" << (Error*)0;
        if (MiniPS::T_ARRAY==MiniPS::getType(chunkArray->get(ii)))
               chunks[i].write_num(offsets[ii], 10); /* Dat: 10: 10 digits (for PDF xref table), not base 10 */
          else chunks[i] << offsets[ii];
      } else { /* a length */
        chunks[i] << chunks[-ii].getLength();
      }
      break;
     default:
      Error::sev(Error::EERROR) << "writeTTM: invalid chunk type: " << MiniPS::getTypeStr(MiniPS::getType(*chunk)) << (Error*)0;
    }
    offsets[i+1]=offsets[i]+chunks[i].getLength();
  } /* NEXT */
  outve.setOut(out);
  for (i=0; i<chunkArray->getLength(); i++) out << chunks[i];
  /* Imp: organize that chunks[.] gets freed earlier than this */
} /* Rule::writeTTM() */

MiniPS::Dict *Rule::Templates=(MiniPS::Dict*)NULLP;

void Rule::writeTTT(
 GenBuffer::Writable&out,
 GenBuffer::Writable&outpal,
 GenBuffer::Writable&outstream,
 char const *template_key,
 Rule::OutputRule*or_,
 Image::SampledInfo *sf,
 stream_writer_t stream_writer,
 char const*const*strings) {
  assert(Templates!=NULLP);
  Error::sev(Error::NOTICE) << "writeTTT: using template: " << template_key << (Error*)0;
  MiniPS::VALUE val=Templates->get(template_key, strlen(template_key));
  assert(val!=MiniPS::Qundef);
  switch (MiniPS::getType(val)) {
   case MiniPS::T_STRING:
    writeTTE(out, outpal, outstream, MiniPS::RSTRING(val)->begin_(), or_, sf, stream_writer, strings);
    break;
   case MiniPS::T_ARRAY:
    /* Imp: vvv This up-cast is unsafe! */
    writeTTM(*(Filter::VerbatimE*)&out, outpal, outstream, MiniPS::RARRAY(val), or_, sf, stream_writer, strings);
    break;
   default:
    Error::sev(Error::EERROR) << "writeTTT: invalid template type: " << MiniPS::getTypeStr(MiniPS::getType(val)) << (Error*)0;
  }
}

/* __END__ */