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Comparing CV/CV.xs (file contents):
Revision 1.35 by root, Tue Mar 7 16:45:53 2006 UTC vs.
Revision 1.43 by root, Sun May 3 08:16:47 2009 UTC

… …
14#include <gdk-pixbuf/gdk-pixbuf.h> 14#include <gdk-pixbuf/gdk-pixbuf.h>
15 15
16#include <gperl.h> 16#include <gperl.h>
17#include <gtk2perl.h> 17#include <gtk2perl.h>
18 18
19#include <assert.h>
20
19#define IW 80 /* MUST match Schnauzer.pm! */ 21#define IW 80 /* MUST match Schnauzer.pm! */
20#define IH 60 /* MUST match Schnauzer.pm! */ 22#define IH 60 /* MUST match Schnauzer.pm! */
21 23
22#define RAND (seed = (seed + 7141) * 54773 % 134456) 24#define RAND (seed = (seed + 7141) * 54773 % 134456)
23 25
24#define LINELENGTH 240 26#define LINELENGTH 240
25 27
26#define ELLIPSIS "\xe2\x80\xa6" 28#define ELLIPSIS "\xe2\x80\xa6"
29
30typedef char *octet_string;
27 31
28struct jpg_err_mgr 32struct jpg_err_mgr
29{ 33{
30 struct jpeg_error_mgr err; 34 struct jpeg_error_mgr err;
31 jmp_buf setjmp_buffer; 35 jmp_buf setjmp_buffer;
… …
68 72
69 *h &= 255; 73 *h &= 255;
70 } 74 }
71} 75}
72 76
77struct feature {
78 float v1, v2, v3; // mean, square, cube
79 int n;
80};
81
82static void
83feature_init (struct feature *f)
84{
85 f->v1 = 0.;
86 f->v2 = 0.;
87 f->v3 = 0.;
88 f->n = 0;
89}
90
91// didn't find an algorithm to neatly do mean, variance and skew in one pass.
92// elmex ist schuld.
93static void
94feature_update_pass_1 (struct feature *f, unsigned int v)
95{
96 f->v1 += v;
97 f->n += 1;
98}
99
100static void
101feature_finish_pass_1 (struct feature *f)
102{
103 if (f->n < 1)
104 return;
105
106 f->v1 /= f->n;
107}
108
109static void
110feature_update_pass_2 (struct feature *f, unsigned int v)
111{
112 float d = v - f->v1;
113
114 f->v2 += d * d;
115 f->v3 += d * d * d;
116}
117
118static void
119feature_finish_pass_2 (struct feature *f)
120{
121 if (f->n < 1)
122 return;
123
124 f->v2 /= f->n;
125 f->v3 /= f->n;
126
127 f->v1 /= 255.;
128 f->v2 /= 255. * 255.; f->v2 = sqrtf (f->v2);
129 f->v3 /= 255. * 255. * 255.; f->v3 = powf (fabsf (f->v3), 1./3.);
130}
131
73static guint32 a85_val; 132static guint32 a85_val;
74static guint a85_cnt; 133static guint a85_cnt;
75static guchar a85_buf[LINELENGTH], *a85_ptr; 134static guchar a85_buf[LINELENGTH], *a85_ptr;
76 135
77static void 136static void
… …
147 206
148 OUTPUT: 207 OUTPUT:
149 RETVAL 208 RETVAL
150 209
151const char * 210const char *
152magic (const char *path) 211magic (octet_string path)
153 CODE: 212 CODE:
154{ 213{
155 static magic_t cookie; 214 static magic_t cookie;
156 215
157 if (!cookie) 216 if (!cookie)
… …
168} 227}
169 OUTPUT: 228 OUTPUT:
170 RETVAL 229 RETVAL
171 230
172const char * 231const char *
173magic_mime (const char *path) 232magic_mime (octet_string path)
174 CODE: 233 CODE:
175{ 234{
176 static magic_t cookie; 235 static magic_t cookie;
177 236
178 if (!cookie) 237 if (!cookie)
… …
188 RETVAL = magic_file (cookie, path); 247 RETVAL = magic_file (cookie, path);
189} 248}
190 OUTPUT: 249 OUTPUT:
191 RETVAL 250 RETVAL
192 251
193# missing in Gtk2 perl module 252# missing/broken in Gtk2 perl module
253
254void
255gdk_window_clear_hints (GdkWindow *window)
256 CODE:
257 gdk_window_set_geometry_hints (window, 0, 0);
194 258
195gboolean 259gboolean
196gdk_net_wm_supports (GdkAtom property) 260gdk_net_wm_supports (GdkAtom property)
197 CODE: 261 CODE:
198#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) 262#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)
… …
338compare (GdkPixbuf *a, GdkPixbuf *b) 402compare (GdkPixbuf *a, GdkPixbuf *b)
339 PPCODE: 403 PPCODE:
340{ 404{
341 int w = gdk_pixbuf_get_width (a); 405 int w = gdk_pixbuf_get_width (a);
342 int h = gdk_pixbuf_get_height (a); 406 int h = gdk_pixbuf_get_height (a);
407
343 int sa = gdk_pixbuf_get_rowstride (a); 408 int sa = gdk_pixbuf_get_rowstride (a);
344 int sb = gdk_pixbuf_get_rowstride (b); 409 int sb = gdk_pixbuf_get_rowstride (b);
345 410
346 guchar *pa = gdk_pixbuf_get_pixels (a); 411 guchar *pa = gdk_pixbuf_get_pixels (a);
347 guchar *pb = gdk_pixbuf_get_pixels (b); 412 guchar *pb = gdk_pixbuf_get_pixels (b);
… …
380 445
381############################################################################# 446#############################################################################
382 447
383MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer 448MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer
384 449
450# currently only works for filenames (octet strings)
451
385SV * 452SV *
386foldcase (SV *pathsv) 453foldcase (SV *pathsv)
387 PROTOTYPE: $ 454 PROTOTYPE: $
388 CODE: 455 CODE:
389{ 456{
390 STRLEN plen; 457 STRLEN plen;
391 U8 *path = (U8 *)SvPVutf8 (pathsv, plen); 458 U8 *path = (U8 *)SvPV (pathsv, plen);
392 U8 *pend = path + plen; 459 U8 *pend = path + plen;
393 U8 dst [plen * 6 * 3], *dstp = dst; 460 U8 dst [plen * 6 * 3], *dstp = dst;
394 461
395 while (path < pend) 462 while (path < pend)
396 { 463 {
397 U8 ch = *path; 464 U8 ch = *path;
398 465
399 if (ch >= 'a' && ch <= 'z') 466 if (ch >= 'a' && ch <= 'z')
400 *dstp++ = *path++; 467 *dstp++ = *path++;
468 else if (ch >= 'A' && ch <= 'Z')
469 *dstp++ = *path++ + ('a' - 'A');
401 else if (ch >= '0' && ch <= '9') 470 else if (ch >= '0' && ch <= '9')
402 { 471 {
403 STRLEN el, nl = 0; 472 STRLEN el, nl = 0;
404 while (*path >= '0' && *path <= '9' && path < pend) 473 while (*path >= '0' && *path <= '9' && path < pend)
405 path++, nl++; 474 path++, nl++;
… …
408 *dstp++ = '0'; 477 *dstp++ = '0';
409 478
410 memcpy (dstp, path - nl, nl); 479 memcpy (dstp, path - nl, nl);
411 dstp += nl; 480 dstp += nl;
412 } 481 }
482 else
483 *dstp++ = *path++;
484#if 0
413 else 485 else
414 { 486 {
415 STRLEN cl; 487 STRLEN cl;
416 to_utf8_fold (path, dstp, &cl); 488 to_utf8_fold (path, dstp, &cl);
417 dstp += cl; 489 dstp += cl;
418 path += is_utf8_char (path); 490 path += is_utf8_char (path);
419 } 491 }
492#endif
420 } 493 }
421 494
422 RETVAL = newSVpvn ((const char *)dst, dstp - dst); 495 RETVAL = newSVpvn ((const char *)dst, dstp - dst);
423} 496}
424 OUTPUT: 497 OUTPUT:
… …
586############################################################################# 659#############################################################################
587 660
588MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster 661MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster
589 662
590SV * 663SV *
591make_histograms (SV *ar) 664extract_features (SV *ar)
592 CODE: 665 CODE:
593{ 666{
594 int i; 667 int i;
595 AV *av, *result; 668 AV *av, *result;
596 669
597 if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) 670 if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV)
598 croak ("Not an array ref as first argument to make_histogram"); 671 croak ("Not an array ref as first argument to extract_features");
599 672
600 av = (AV *) SvRV (ar); 673 av = (AV *) SvRV (ar);
601 result = newAV (); 674 result = newAV ();
602 675
603 for (i = 0; i <= av_len (av); ++i) 676 for (i = 0; i <= av_len (av); ++i)
604 { 677 {
605 const int HISTSIZE = 64;
606
607 int j;
608 SV *sv = *av_fetch (av, i, 1); 678 SV *sv = *av_fetch (av, i, 1);
609 STRLEN len;
610 char *buf = SvPVbyte (sv, len);
611
612 int tmphist[HISTSIZE];
613 float *hist;
614
615 SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); 679 SV *histsv = newSV (9 * sizeof (float) + 1);
680
616 SvPOK_on (histsv); 681 SvPOK_on (histsv);
617 SvCUR_set (histsv, HISTSIZE * sizeof (float)); 682 SvCUR_set (histsv, 9 * sizeof (float));
618 hist = (float *)SvPVX (histsv); 683 float *hist = (float *)SvPVX (histsv);
619 684
620 Zero (tmphist, sizeof (tmphist), char); 685 struct feature f_h, f_s, f_v;
686 feature_init (&f_h);
687 feature_init (&f_s);
688 feature_init (&f_v);
621 689
622 for (j = len; j--; )
623 {
624 unsigned int idx
625 = ((*buf & 0xc0) >> 2)
626 | ((*buf & 0x18) >> 1)
627 | (*buf & 0x03);
628
629 ++tmphist[idx];
630 ++buf;
631 }
632 690 {
633 for (j = 0; j < HISTSIZE; ++j) 691 STRLEN len;
634 hist[j] = (float)tmphist[j] / (len + 1e-30); 692 unsigned char *buf = (unsigned char *)SvPVbyte (sv, len);
693 while (len >= 3)
694 {
695 unsigned int r, g, b, h, s, v;
696 r = *buf++; g = *buf++; b = *buf++;
697 rgb_to_hsv (r, g, b, &h, &s, &v);
698
699 feature_update_pass_1 (&f_h, h);
700 feature_update_pass_1 (&f_s, s);
701 feature_update_pass_1 (&f_v, v);
702
703 len -= 3;
704 }
705
706 feature_finish_pass_1 (&f_h);
707 feature_finish_pass_1 (&f_s);
708 feature_finish_pass_1 (&f_v);
709 }
710
711 {
712 STRLEN len;
713 unsigned char *buf = (unsigned char *)SvPVbyte (sv, len);
714 while (len >= 3)
715 {
716 unsigned int r, g, b, h, s, v;
717 r = *buf++; g = *buf++; b = *buf++;
718 rgb_to_hsv (r, g, b, &h, &s, &v);
719
720 feature_update_pass_2 (&f_h, h);
721 feature_update_pass_2 (&f_s, s);
722 feature_update_pass_2 (&f_v, v);
723
724 len -= 3;
725 }
726
727 feature_finish_pass_2 (&f_h);
728 feature_finish_pass_2 (&f_s);
729 feature_finish_pass_2 (&f_v);
730 }
731
732 hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.;
733 hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ;
734 hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5;
635 735
636 av_push (result, histsv); 736 av_push (result, histsv);
637 } 737 }
638 738
639 RETVAL = newRV_noinc ((SV *)result); 739 RETVAL = newRV_noinc ((SV *)result);
640} 740}
641 OUTPUT: 741 OUTPUT:
642 RETVAL 742 RETVAL
643 743
644

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