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Comparing CV/CV.xs (file contents):
Revision 1.33 by root, Fri Feb 17 08:48:06 2006 UTC vs.
Revision 1.45 by root, Fri Aug 29 18:35:25 2014 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)
158 { 217 {
159 cookie = magic_open (MAGIC_NONE); 218 cookie = magic_open (MAGIC_SYMLINK);
160 219
161 if (cookie) 220 if (cookie)
162 magic_load (cookie, 0); 221 magic_load (cookie, 0);
163 else 222 else
164 XSRETURN_UNDEF; 223 XSRETURN_UNDEF;
… …
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)
179 { 238 {
180 cookie = magic_open (MAGIC_MIME); 239 cookie = magic_open (MAGIC_MIME | MAGIC_SYMLINK);
181 240
182 if (cookie) 241 if (cookie)
183 magic_load (cookie, 0); 242 magic_load (cookie, 0);
184 else 243 else
185 XSRETURN_UNDEF; 244 XSRETURN_UNDEF;
… …
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
427 if (w && h)
360 for (y = 0; y < h; y++) 428 for (y = 0; y < h; y++)
361 { 429 {
362 guchar *pa_ = pa + y * sa; 430 guchar *pa_ = pa + y * sa;
363 guchar *pb_ = pb + y * sb; 431 guchar *pb_ = pb + y * sb;
364 432
365 for (x = 0; x < w; x ++) 433 for (x = 0; x < w; x++)
366 { 434 {
367 int d; 435 int d;
368 436
369 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); 437 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d));
370 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); 438 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d));
371 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); 439 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d));
372 } 440 }
373 } 441 }
374 442
375 EXTEND (SP, 2); 443 EXTEND (SP, 2);
376 PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); 444 PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.)))));
377 PUSHs (sv_2mortal (newSVnv (peak / 255.))); 445 PUSHs (sv_2mortal (newSVnv (peak / 255.)));
378} 446}
379 447
380############################################################################# 448#############################################################################
381 449
382MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer 450MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer
383 451
452# currently only works for filenames (octet strings)
453
384SV * 454SV *
385foldcase (SV *pathsv) 455foldcase (SV *pathsv)
386 PROTOTYPE: $ 456 PROTOTYPE: $
387 CODE: 457 CODE:
388{ 458{
389 STRLEN plen; 459 STRLEN plen;
390 U8 *path = (U8 *)SvPVutf8 (pathsv, plen); 460 U8 *path = (U8 *)SvPV (pathsv, plen);
391 U8 *pend = path + plen; 461 U8 *pend = path + plen;
392 U8 dst [plen * 6 * 3], *dstp = dst; 462 U8 dst [plen * 6 * 3], *dstp = dst;
393 463
394 while (path < pend) 464 while (path < pend)
395 { 465 {
396 U8 ch = *path; 466 U8 ch = *path;
397 467
398 if (ch >= 'a' && ch <= 'z') 468 if (ch >= 'a' && ch <= 'z')
399 *dstp++ = *path++; 469 *dstp++ = *path++;
470 else if (ch >= 'A' && ch <= 'Z')
471 *dstp++ = *path++ + ('a' - 'A');
400 else if (ch >= '0' && ch <= '9') 472 else if (ch >= '0' && ch <= '9')
401 { 473 {
402 STRLEN el, nl = 0; 474 STRLEN el, nl = 0;
403 while (*path >= '0' && *path <= '9' && path < pend) 475 while (*path >= '0' && *path <= '9' && path < pend)
404 path++, nl++; 476 path++, nl++;
… …
407 *dstp++ = '0'; 479 *dstp++ = '0';
408 480
409 memcpy (dstp, path - nl, nl); 481 memcpy (dstp, path - nl, nl);
410 dstp += nl; 482 dstp += nl;
411 } 483 }
484 else
485 *dstp++ = *path++;
486#if 0
412 else 487 else
413 { 488 {
414 STRLEN cl; 489 STRLEN cl;
415 to_utf8_fold (path, dstp, &cl); 490 to_utf8_fold (path, dstp, &cl);
416 dstp += cl; 491 dstp += cl;
417 path += is_utf8_char (path); 492 path += is_utf8_char (path);
418 } 493 }
494#endif
419 } 495 }
420 496
421 RETVAL = newSVpvn ((const char *)dst, dstp - dst); 497 RETVAL = newSVpvn ((const char *)dst, dstp - dst);
422} 498}
423 OUTPUT: 499 OUTPUT:
… …
585############################################################################# 661#############################################################################
586 662
587MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster 663MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster
588 664
589SV * 665SV *
590make_histograms (SV *ar) 666extract_features (SV *ar)
591 CODE: 667 CODE:
592{ 668{
593 int i; 669 int i;
594 AV *av, *result; 670 AV *av, *result;
595 671
596 if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) 672 if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV)
597 croak ("Not an array ref as first argument to make_histogram"); 673 croak ("Not an array ref as first argument to extract_features");
598 674
599 av = (AV *) SvRV (ar); 675 av = (AV *) SvRV (ar);
600 result = newAV (); 676 result = newAV ();
601 677
602 for (i = 0; i <= av_len (av); ++i) 678 for (i = 0; i <= av_len (av); ++i)
603 { 679 {
604 const int HISTSIZE = 64;
605
606 int j;
607 SV *sv = *av_fetch (av, i, 1); 680 SV *sv = *av_fetch (av, i, 1);
608 STRLEN len;
609 char *buf = SvPVbyte (sv, len);
610
611 int tmphist[HISTSIZE];
612 float *hist;
613
614 SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); 681 SV *histsv = newSV (9 * sizeof (float) + 1);
682
615 SvPOK_on (histsv); 683 SvPOK_on (histsv);
616 SvCUR_set (histsv, HISTSIZE * sizeof (float)); 684 SvCUR_set (histsv, 9 * sizeof (float));
617 hist = (float *)SvPVX (histsv); 685 float *hist = (float *)SvPVX (histsv);
618 686
619 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);
620 691
621 for (j = len; j--; )
622 {
623 unsigned int idx
624 = ((*buf & 0xc0) >> 2)
625 | ((*buf & 0x18) >> 1)
626 | (*buf & 0x03);
627
628 ++tmphist[idx];
629 ++buf;
630 }
631 692 {
632 for (j = 0; j < HISTSIZE; ++j) 693 STRLEN len;
633 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;
634 737
635 av_push (result, histsv); 738 av_push (result, histsv);
636 } 739 }
637 740
638 RETVAL = newRV_noinc ((SV *)result); 741 RETVAL = newRV_noinc ((SV *)result);
639} 742}
640 OUTPUT: 743 OUTPUT:
641 RETVAL 744 RETVAL
642 745
643

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