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Comparing CV/CV.xs (file contents):
Revision 1.34 by root, Tue Mar 7 16:26:25 2006 UTC vs.
Revision 1.44 by root, Sun Dec 30 16:23:23 2012 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)
… …
228 RETVAL 292 RETVAL
229 293
230GdkPixbuf_noinc * 294GdkPixbuf_noinc *
231rotate (GdkPixbuf *pb, int angle) 295rotate (GdkPixbuf *pb, int angle)
232 CODE: 296 CODE:
297 if (angle < 0)
298 angle += 360;
233 RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE 299 RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE
234 : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE 300 : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE
235 : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN 301 : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN
236 : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE 302 : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE
237 : angle); 303 : angle);
… …
338compare (GdkPixbuf *a, GdkPixbuf *b) 404compare (GdkPixbuf *a, GdkPixbuf *b)
339 PPCODE: 405 PPCODE:
340{ 406{
341 int w = gdk_pixbuf_get_width (a); 407 int w = gdk_pixbuf_get_width (a);
342 int h = gdk_pixbuf_get_height (a); 408 int h = gdk_pixbuf_get_height (a);
409
343 int sa = gdk_pixbuf_get_rowstride (a); 410 int sa = gdk_pixbuf_get_rowstride (a);
344 int sb = gdk_pixbuf_get_rowstride (b); 411 int sb = gdk_pixbuf_get_rowstride (b);
345 412
346 guchar *pa = gdk_pixbuf_get_pixels (a); 413 guchar *pa = gdk_pixbuf_get_pixels (a);
347 guchar *pb = gdk_pixbuf_get_pixels (b); 414 guchar *pb = gdk_pixbuf_get_pixels (b);
… …
355 assert (gdk_pixbuf_get_n_channels (b) == 3); 422 assert (gdk_pixbuf_get_n_channels (b) == 3);
356 423
357 double diff = 0.; 424 double diff = 0.;
358 int peak = 0; 425 int peak = 0;
359 426
360 if (x && y) 427 if (w && h)
361 for (y = 0; y < h; y++) 428 for (y = 0; y < h; y++)
362 { 429 {
363 guchar *pa_ = pa + y * sa; 430 guchar *pa_ = pa + y * sa;
364 guchar *pb_ = pb + y * sb; 431 guchar *pb_ = pb + y * sb;
365 432
… …
380 447
381############################################################################# 448#############################################################################
382 449
383MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer 450MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer
384 451
452# currently only works for filenames (octet strings)
453
385SV * 454SV *
386foldcase (SV *pathsv) 455foldcase (SV *pathsv)
387 PROTOTYPE: $ 456 PROTOTYPE: $
388 CODE: 457 CODE:
389{ 458{
390 STRLEN plen; 459 STRLEN plen;
391 U8 *path = (U8 *)SvPVutf8 (pathsv, plen); 460 U8 *path = (U8 *)SvPV (pathsv, plen);
392 U8 *pend = path + plen; 461 U8 *pend = path + plen;
393 U8 dst [plen * 6 * 3], *dstp = dst; 462 U8 dst [plen * 6 * 3], *dstp = dst;
394 463
395 while (path < pend) 464 while (path < pend)
396 { 465 {
397 U8 ch = *path; 466 U8 ch = *path;
398 467
399 if (ch >= 'a' && ch <= 'z') 468 if (ch >= 'a' && ch <= 'z')
400 *dstp++ = *path++; 469 *dstp++ = *path++;
470 else if (ch >= 'A' && ch <= 'Z')
471 *dstp++ = *path++ + ('a' - 'A');
401 else if (ch >= '0' && ch <= '9') 472 else if (ch >= '0' && ch <= '9')
402 { 473 {
403 STRLEN el, nl = 0; 474 STRLEN el, nl = 0;
404 while (*path >= '0' && *path <= '9' && path < pend) 475 while (*path >= '0' && *path <= '9' && path < pend)
405 path++, nl++; 476 path++, nl++;
… …
408 *dstp++ = '0'; 479 *dstp++ = '0';
409 480
410 memcpy (dstp, path - nl, nl); 481 memcpy (dstp, path - nl, nl);
411 dstp += nl; 482 dstp += nl;
412 } 483 }
484 else
485 *dstp++ = *path++;
486#if 0
413 else 487 else
414 { 488 {
415 STRLEN cl; 489 STRLEN cl;
416 to_utf8_fold (path, dstp, &cl); 490 to_utf8_fold (path, dstp, &cl);
417 dstp += cl; 491 dstp += cl;
418 path += is_utf8_char (path); 492 path += is_utf8_char (path);
419 } 493 }
494#endif
420 } 495 }
421 496
422 RETVAL = newSVpvn ((const char *)dst, dstp - dst); 497 RETVAL = newSVpvn ((const char *)dst, dstp - dst);
423} 498}
424 OUTPUT: 499 OUTPUT:
… …
586############################################################################# 661#############################################################################
587 662
588MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster 663MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster
589 664
590SV * 665SV *
591make_histograms (SV *ar) 666extract_features (SV *ar)
592 CODE: 667 CODE:
593{ 668{
594 int i; 669 int i;
595 AV *av, *result; 670 AV *av, *result;
596 671
597 if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) 672 if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV)
598 croak ("Not an array ref as first argument to make_histogram"); 673 croak ("Not an array ref as first argument to extract_features");
599 674
600 av = (AV *) SvRV (ar); 675 av = (AV *) SvRV (ar);
601 result = newAV (); 676 result = newAV ();
602 677
603 for (i = 0; i <= av_len (av); ++i) 678 for (i = 0; i <= av_len (av); ++i)
604 { 679 {
605 const int HISTSIZE = 64;
606
607 int j;
608 SV *sv = *av_fetch (av, i, 1); 680 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); 681 SV *histsv = newSV (9 * sizeof (float) + 1);
682
616 SvPOK_on (histsv); 683 SvPOK_on (histsv);
617 SvCUR_set (histsv, HISTSIZE * sizeof (float)); 684 SvCUR_set (histsv, 9 * sizeof (float));
618 hist = (float *)SvPVX (histsv); 685 float *hist = (float *)SvPVX (histsv);
619 686
620 Zero (tmphist, sizeof (tmphist), char); 687 struct feature f_h, f_s, f_v;
688 feature_init (&f_h);
689 feature_init (&f_s);
690 feature_init (&f_v);
621 691
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 }
632 692 {
633 for (j = 0; j < HISTSIZE; ++j) 693 STRLEN len;
634 hist[j] = (float)tmphist[j] / (len + 1e-30); 694 unsigned char *buf = (unsigned char *)SvPVbyte (sv, len);
695 while (len >= 3)
696 {
697 unsigned int r, g, b, h, s, v;
698 r = *buf++; g = *buf++; b = *buf++;
699 rgb_to_hsv (r, g, b, &h, &s, &v);
700
701 feature_update_pass_1 (&f_h, h);
702 feature_update_pass_1 (&f_s, s);
703 feature_update_pass_1 (&f_v, v);
704
705 len -= 3;
706 }
707
708 feature_finish_pass_1 (&f_h);
709 feature_finish_pass_1 (&f_s);
710 feature_finish_pass_1 (&f_v);
711 }
712
713 {
714 STRLEN len;
715 unsigned char *buf = (unsigned char *)SvPVbyte (sv, len);
716 while (len >= 3)
717 {
718 unsigned int r, g, b, h, s, v;
719 r = *buf++; g = *buf++; b = *buf++;
720 rgb_to_hsv (r, g, b, &h, &s, &v);
721
722 feature_update_pass_2 (&f_h, h);
723 feature_update_pass_2 (&f_s, s);
724 feature_update_pass_2 (&f_v, v);
725
726 len -= 3;
727 }
728
729 feature_finish_pass_2 (&f_h);
730 feature_finish_pass_2 (&f_s);
731 feature_finish_pass_2 (&f_v);
732 }
733
734 hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.;
735 hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ;
736 hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5;
635 737
636 av_push (result, histsv); 738 av_push (result, histsv);
637 } 739 }
638 740
639 RETVAL = newRV_noinc ((SV *)result); 741 RETVAL = newRV_noinc ((SV *)result);
640} 742}
641 OUTPUT: 743 OUTPUT:
642 RETVAL 744 RETVAL
643 745
644

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