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Comparing CV/CV.xs (file contents):
Revision 1.28 by root, Mon Aug 22 00:30:58 2005 UTC vs.
Revision 1.48 by root, Wed May 24 05:00:57 2017 UTC

… …
2#include "perl.h" 2#include "perl.h"
3#include "XSUB.h" 3#include "XSUB.h"
4 4
5#include <string.h> 5#include <string.h>
6#include <setjmp.h> 6#include <setjmp.h>
7#include <math.h>
8
9#include <magic.h>
7 10
8#include <jpeglib.h> 11#include <jpeglib.h>
9#include <glib.h> 12#include <glib.h>
10#include <gtk/gtk.h> 13#include <gtk/gtk.h>
11#include <gdk-pixbuf/gdk-pixbuf.h> 14#include <gdk-pixbuf/gdk-pixbuf.h>
12 15
13#include <gperl.h> 16#include <gperl.h>
14#include <gtk2perl.h> 17#include <gtk2perl.h>
15 18
19#include <assert.h>
20
21#include "perlmulticore.h"
22
16#define IW 80 /* MUST match Schnauer.pm! */ 23#define IW 80 /* MUST match Schnauzer.pm! */
17#define IH 60 /* MUST match Schnauer.pm! */ 24#define IH 60 /* MUST match Schnauzer.pm! */
18 25
19#define RAND (seed = (seed + 7141) * 54773 % 134456) 26#define RAND (seed = (seed + 7141) * 54773 % 134456)
20 27
21#define LINELENGTH 240 28#define LINELENGTH 240
22 29
23#define ELLIPSIS "\xe2\x80\xa6" 30#define ELLIPSIS "\xe2\x80\xa6"
31
32typedef char *octet_string;
24 33
25struct jpg_err_mgr 34struct jpg_err_mgr
26{ 35{
27 struct jpeg_error_mgr err; 36 struct jpeg_error_mgr err;
28 jmp_buf setjmp_buffer; 37 jmp_buf setjmp_buffer;
29}; 38};
30 39
31static void 40static void
32cv_error_exit (j_common_ptr cinfo) 41cv_error_exit (j_common_ptr cinfo)
33{ 42{
43 cinfo->err->output_message (cinfo);
34 longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); 44 longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99);
35} 45}
36 46
37static void 47static void
38cv_error_output (j_common_ptr cinfo) 48cv_error_output (j_common_ptr cinfo)
39{ 49{
50 char msg[JMSG_LENGTH_MAX];
51
52 cinfo->err->format_message (cinfo, msg);
53
54 fprintf (stderr, "JPEG decoding error: %s\n", msg);
40 return; 55 return;
41} 56}
42 57
43static void 58static void
44rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, 59rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b,
… …
65 80
66 *h &= 255; 81 *h &= 255;
67 } 82 }
68} 83}
69 84
85struct feature {
86 float v1, v2, v3; // mean, square, cube
87 int n;
88};
89
90static void
91feature_init (struct feature *f)
92{
93 f->v1 = 0.;
94 f->v2 = 0.;
95 f->v3 = 0.;
96 f->n = 0;
97}
98
99// didn't find an algorithm to neatly do mean, variance and skew in one pass.
100// elmex ist schuld.
101static void
102feature_update_pass_1 (struct feature *f, unsigned int v)
103{
104 f->v1 += v;
105 f->n += 1;
106}
107
108static void
109feature_finish_pass_1 (struct feature *f)
110{
111 if (f->n < 1)
112 return;
113
114 f->v1 /= f->n;
115}
116
117static void
118feature_update_pass_2 (struct feature *f, unsigned int v)
119{
120 float d = v - f->v1;
121
122 f->v2 += d * d;
123 f->v3 += d * d * d;
124}
125
126static void
127feature_finish_pass_2 (struct feature *f)
128{
129 if (f->n < 1)
130 return;
131
132 f->v2 /= f->n;
133 f->v3 /= f->n;
134
135 f->v1 /= 255.;
136 f->v2 /= 255. * 255.; f->v2 = sqrtf (f->v2);
137 f->v3 /= 255. * 255. * 255.; f->v3 = powf (fabsf (f->v3), 1./3.);
138}
139
70static guint32 a85_val; 140static guint32 a85_val;
71static guint a85_cnt; 141static guint a85_cnt;
72static guchar a85_buf[LINELENGTH], *a85_ptr; 142static guchar a85_buf[LINELENGTH], *a85_ptr;
73 143
74static void 144static void
… …
126 196
127MODULE = Gtk2::CV PACKAGE = Gtk2::CV 197MODULE = Gtk2::CV PACKAGE = Gtk2::CV
128 198
129PROTOTYPES: ENABLE 199PROTOTYPES: ENABLE
130 200
201# missing function in perl. really :)
202int
203common_prefix_length (a, b)
204 unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg);
205 unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg);
206 CODE:
207 RETVAL = 0;
208
209 while (*a == *b && *a)
210 {
211 RETVAL += (*a & 0xc0) != 0x80;
212 a++, b++;
213 }
214
215 OUTPUT:
216 RETVAL
217
218const char *
219magic (octet_string path)
220 CODE:
221{
222 static magic_t cookie;
223
224 if (!cookie)
225 {
226 cookie = magic_open (MAGIC_SYMLINK);
227
228 if (cookie)
229 magic_load (cookie, 0);
230 else
231 XSRETURN_UNDEF;
232 }
233
234 RETVAL = magic_file (cookie, path);
235}
236 OUTPUT:
237 RETVAL
238
239const char *
240magic_mime (octet_string path)
241 CODE:
242{
243 static magic_t cookie;
244
245 if (!cookie)
246 {
247 cookie = magic_open (MAGIC_MIME | MAGIC_SYMLINK);
248
249 if (cookie)
250 magic_load (cookie, 0);
251 else
252 XSRETURN_UNDEF;
253 }
254
255 perlinterp_release ();
256 RETVAL = magic_file (cookie, path);
257 perlinterp_acquire ();
258}
259 OUTPUT:
260 RETVAL
261
131# missing in Gtk2 perl module 262# missing/broken in Gtk2 perl module
263
264void
265gdk_window_clear_hints (GdkWindow *window)
266 CODE:
267 gdk_window_set_geometry_hints (window, 0, 0);
132 268
133gboolean 269gboolean
134gdk_net_wm_supports (GdkAtom property) 270gdk_net_wm_supports (GdkAtom property)
135 CODE: 271 CODE:
136#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) 272#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)
… …
142 RETVAL 278 RETVAL
143 279
144GdkPixbuf_noinc * 280GdkPixbuf_noinc *
145dealpha_expose (GdkPixbuf *pb) 281dealpha_expose (GdkPixbuf *pb)
146 CODE: 282 CODE:
283 perlinterp_release ();
147{ 284{
148 int w = gdk_pixbuf_get_width (pb); 285 int w = gdk_pixbuf_get_width (pb);
149 int h = gdk_pixbuf_get_height (pb); 286 int h = gdk_pixbuf_get_height (pb);
150 int bpp = gdk_pixbuf_get_n_channels (pb); 287 int bpp = gdk_pixbuf_get_n_channels (pb);
151 int x, y, i; 288 int x, y, i;
… …
160 for (x = 0; x < w; x++) 297 for (x = 0; x < w; x++)
161 for (y = 0; y < h; y++) 298 for (y = 0; y < h; y++)
162 for (i = 0; i < 3; i++) 299 for (i = 0; i < 3; i++)
163 dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; 300 dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i];
164} 301}
302 perlinterp_acquire ();
165 OUTPUT: 303 OUTPUT:
166 RETVAL 304 RETVAL
167 305
168GdkPixbuf_noinc * 306GdkPixbuf_noinc *
169rotate (GdkPixbuf *pb, int angle) 307rotate (GdkPixbuf *pb, int angle)
170 CODE: 308 CODE:
309 perlinterp_release ();
310 if (angle < 0)
311 angle += 360;
171 RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE 312 RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE
172 : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE 313 : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE
173 : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN 314 : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN
174 : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE 315 : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE
175 : angle); 316 : angle);
317 perlinterp_acquire ();
176 OUTPUT: 318 OUTPUT:
177 RETVAL 319 RETVAL
178 320
179GdkPixbuf_noinc * 321GdkPixbuf_noinc *
180load_jpeg (SV *path, int thumbnail=0) 322load_jpeg (SV *path, int thumbnail = 0, int iw = 0, int ih = 0)
181 CODE: 323 CODE:
182{ 324{
183 struct jpeg_decompress_struct cinfo; 325 struct jpeg_decompress_struct cinfo;
184 struct jpg_err_mgr jerr; 326 struct jpg_err_mgr jerr;
185 guchar *data; 327 guchar *data;
186 int rs; 328 int rs;
187 FILE *fp; 329 FILE *fp;
188 volatile GdkPixbuf *pb = 0; 330 volatile GdkPixbuf *pb = 0;
189 gchar *filename;
190 331
191 RETVAL = 0; 332 RETVAL = 0;
192 333
193 filename = g_filename_from_utf8 (SvPVutf8_nolen (path), -1, 0, 0, 0);
194 fp = fopen (filename, "rb"); 334 fp = fopen (SvPVbyte_nolen (path), "rb");
195 g_free (filename);
196 335
197 if (!fp) 336 if (!fp)
198 XSRETURN_UNDEF; 337 XSRETURN_UNDEF;
199 338
339 perlinterp_release ();
340
200 cinfo.err = jpeg_std_error (&jerr.err); 341 cinfo.err = jpeg_std_error (&jerr.err);
201 342
202 jerr.err.error_exit = cv_error_exit; 343 jerr.err.error_exit = cv_error_exit;
203 jerr.err.output_message = cv_error_output; 344 jerr.err.output_message = cv_error_output;
204 345
… …
208 jpeg_destroy_decompress (&cinfo); 349 jpeg_destroy_decompress (&cinfo);
209 350
210 if (pb) 351 if (pb)
211 g_object_unref ((gpointer)pb); 352 g_object_unref ((gpointer)pb);
212 353
354 perlinterp_acquire ();
213 XSRETURN_UNDEF; 355 XSRETURN_UNDEF;
214 } 356 }
215 357
216 jpeg_create_decompress (&cinfo); 358 jpeg_create_decompress (&cinfo);
217 359
… …
233 { 375 {
234 cinfo.dct_method = JDCT_FASTEST; 376 cinfo.dct_method = JDCT_FASTEST;
235 cinfo.do_fancy_upsampling = FALSE; 377 cinfo.do_fancy_upsampling = FALSE;
236 378
237 while (cinfo.scale_denom < 8 379 while (cinfo.scale_denom < 8
238 && cinfo.output_width >= IW*4 380 && cinfo.output_width >= iw*4
239 && cinfo.output_height >= IH*4) 381 && cinfo.output_height >= ih*4)
240 { 382 {
241 cinfo.scale_denom <<= 1; 383 cinfo.scale_denom <<= 1;
242 jpeg_calc_output_dimensions (&cinfo); 384 jpeg_calc_output_dimensions (&cinfo);
243 } 385 }
244 } 386 }
245 387
388 if (cinfo.output_components != 3)
389 longjmp (jerr.setjmp_buffer, 3);
390
391 if (cinfo.jpeg_color_space == JCS_YCCK || cinfo.jpeg_color_space == JCS_CMYK)
392 {
393 cinfo.out_color_space = JCS_CMYK;
394 cinfo.output_components = 4;
395 }
396
246 pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height); 397 pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, cinfo.output_components == 4, 8, cinfo.output_width, cinfo.output_height);
247 if (!RETVAL) 398 if (!RETVAL)
248 longjmp (jerr.setjmp_buffer, 2); 399 longjmp (jerr.setjmp_buffer, 2);
249 400
250 data = gdk_pixbuf_get_pixels (RETVAL); 401 data = gdk_pixbuf_get_pixels (RETVAL);
251 rs = gdk_pixbuf_get_rowstride (RETVAL); 402 rs = gdk_pixbuf_get_rowstride (RETVAL);
252
253 if (cinfo.output_components != 3)
254 longjmp (jerr.setjmp_buffer, 3);
255 403
256 jpeg_start_decompress (&cinfo); 404 jpeg_start_decompress (&cinfo);
257 405
258 while (cinfo.output_scanline < cinfo.output_height) 406 while (cinfo.output_scanline < cinfo.output_height)
259 { 407 {
… …
266 rp [3] = (guchar *)rp [2] + rs; 414 rp [3] = (guchar *)rp [2] + rs;
267 415
268 jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); 416 jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4);
269 } 417 }
270 418
419 if (cinfo.out_color_space == JCS_CMYK)
420 {
421 guchar *end = data + cinfo.output_height * rs;
422
423 while (data < end)
424 {
425 U32 c = data [0];
426 U32 m = data [1];
427 U32 y = data [2];
428 U32 k = data [3];
429
430 data [0] = c * k / 255;
431 data [1] = m * k / 255;
432 data [2] = y * k / 255;
433 data [3] = 255;
434
435 data += 4;
436 }
437 }
438
271 jpeg_finish_decompress (&cinfo); 439 jpeg_finish_decompress (&cinfo);
272 fclose (fp); 440 fclose (fp);
273 jpeg_destroy_decompress (&cinfo); 441 jpeg_destroy_decompress (&cinfo);
442 perlinterp_acquire ();
274} 443}
275 OUTPUT: 444 OUTPUT:
276 RETVAL 445 RETVAL
446
447void
448compare (GdkPixbuf *a, GdkPixbuf *b)
449 PPCODE:
450 perlinterp_release ();
451{
452 int w = gdk_pixbuf_get_width (a);
453 int h = gdk_pixbuf_get_height (a);
454
455 int sa = gdk_pixbuf_get_rowstride (a);
456 int sb = gdk_pixbuf_get_rowstride (b);
457
458 guchar *pa = gdk_pixbuf_get_pixels (a);
459 guchar *pb = gdk_pixbuf_get_pixels (b);
460
461 int x, y;
462
463 assert (w == gdk_pixbuf_get_width (b));
464 assert (h == gdk_pixbuf_get_height (b));
465
466 assert (gdk_pixbuf_get_n_channels (a) == 3);
467 assert (gdk_pixbuf_get_n_channels (b) == 3);
468
469 double diff = 0.;
470 int peak = 0;
471
472 if (w && h)
473 for (y = 0; y < h; y++)
474 {
475 guchar *pa_ = pa + y * sa;
476 guchar *pb_ = pb + y * sb;
477
478 for (x = 0; x < w; x++)
479 {
480 int d;
481
482 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d));
483 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d));
484 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d));
485 }
486 }
487
488 perlinterp_acquire ();
489
490 EXTEND (SP, 2);
491 PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.)))));
492 PUSHs (sv_2mortal (newSVnv (peak / 255.)));
493}
277 494
278############################################################################# 495#############################################################################
279 496
280MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer 497MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer
498
499# currently only works for filenames (octet strings)
281 500
282SV * 501SV *
283foldcase (SV *pathsv) 502foldcase (SV *pathsv)
284 PROTOTYPE: $ 503 PROTOTYPE: $
285 CODE: 504 CODE:
286{ 505{
287 STRLEN plen; 506 STRLEN plen;
288 U8 *path = (U8 *)SvPVutf8 (pathsv, plen); 507 U8 *path = (U8 *)SvPV (pathsv, plen);
289 U8 *pend = path + plen; 508 U8 *pend = path + plen;
290 U8 dst [plen * 6 * 3], *dstp = dst; 509 U8 dst [plen * 6 * 3], *dstp = dst;
291 510
292 while (path < pend) 511 while (path < pend)
293 { 512 {
294 U8 ch = *path; 513 U8 ch = *path;
295 514
296 if (ch >= 'a' && ch <= 'z') 515 if (ch >= 'a' && ch <= 'z')
297 *dstp++ = *path++; 516 *dstp++ = *path++;
517 else if (ch >= 'A' && ch <= 'Z')
518 *dstp++ = *path++ + ('a' - 'A');
298 else if (ch >= '0' && ch <= '9') 519 else if (ch >= '0' && ch <= '9')
299 { 520 {
300 STRLEN el, nl = 0; 521 STRLEN el, nl = 0;
301 while (*path >= '0' && *path <= '9' && path < pend) 522 while (*path >= '0' && *path <= '9' && path < pend)
302 path++, nl++; 523 path++, nl++;
… …
305 *dstp++ = '0'; 526 *dstp++ = '0';
306 527
307 memcpy (dstp, path - nl, nl); 528 memcpy (dstp, path - nl, nl);
308 dstp += nl; 529 dstp += nl;
309 } 530 }
531 else
532 *dstp++ = *path++;
533#if 0
310 else 534 else
311 { 535 {
312 STRLEN cl; 536 STRLEN cl;
313 to_utf8_fold (path, dstp, &cl); 537 to_utf8_fold (path, dstp, &cl);
314 dstp += cl; 538 dstp += cl;
315 path += is_utf8_char (path); 539 path += is_utf8_char (path);
316 } 540 }
541#endif
317 } 542 }
318 543
319 RETVAL = newSVpvn ((const char *)dst, dstp - dst); 544 RETVAL = newSVpvn ((const char *)dst, dstp - dst);
320} 545}
321 OUTPUT: 546 OUTPUT:
… …
483############################################################################# 708#############################################################################
484 709
485MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster 710MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster
486 711
487SV * 712SV *
488make_histograms (SV *ar) 713extract_features (SV *ar)
489 CODE: 714 CODE:
490{ 715{
491 int i; 716 int i;
492 AV *av, *result; 717 AV *av, *result;
493 718
494 if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) 719 if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV)
495 croak ("Not an array ref as first argument to make_histogram"); 720 croak ("Not an array ref as first argument to extract_features");
496 721
497 av = (AV *) SvRV (ar); 722 av = (AV *) SvRV (ar);
498 result = newAV (); 723 result = newAV ();
499 724
500 for (i = 0; i <= av_len (av); ++i) 725 for (i = 0; i <= av_len (av); ++i)
501 { 726 {
502 const int HISTSIZE = 64;
503
504 int j;
505 SV *sv = *av_fetch (av, i, 1); 727 SV *sv = *av_fetch (av, i, 1);
506 STRLEN len;
507 char *buf = SvPVbyte (sv, len);
508
509 int tmphist[HISTSIZE];
510 float *hist;
511
512 SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); 728 SV *histsv = newSV (9 * sizeof (float) + 1);
729
513 SvPOK_on (histsv); 730 SvPOK_on (histsv);
514 SvCUR_set (histsv, HISTSIZE * sizeof (float)); 731 SvCUR_set (histsv, 9 * sizeof (float));
515 hist = (float *)SvPVX (histsv); 732 float *hist = (float *)SvPVX (histsv);
516 733
517 Zero (tmphist, sizeof (tmphist), char); 734 struct feature f_h, f_s, f_v;
735 feature_init (&f_h);
736 feature_init (&f_s);
737 feature_init (&f_v);
518 738
519 for (j = len; j--; )
520 {
521 unsigned int idx
522 = ((*buf & 0xc0) >> 2)
523 | ((*buf & 0x18) >> 1)
524 | (*buf & 0x03);
525
526 ++tmphist[idx];
527 ++buf;
528 }
529 739 {
530 for (j = 0; j < HISTSIZE; ++j) 740 STRLEN len;
531 hist[j] = (float)tmphist[j] / (len + 1e-30); 741 unsigned char *buf = (unsigned char *)SvPVbyte (sv, len);
742 while (len >= 3)
743 {
744 unsigned int r, g, b, h, s, v;
745 r = *buf++; g = *buf++; b = *buf++;
746 rgb_to_hsv (r, g, b, &h, &s, &v);
747
748 feature_update_pass_1 (&f_h, h);
749 feature_update_pass_1 (&f_s, s);
750 feature_update_pass_1 (&f_v, v);
751
752 len -= 3;
753 }
754
755 feature_finish_pass_1 (&f_h);
756 feature_finish_pass_1 (&f_s);
757 feature_finish_pass_1 (&f_v);
758 }
759
760 {
761 STRLEN len;
762 unsigned char *buf = (unsigned char *)SvPVbyte (sv, len);
763 while (len >= 3)
764 {
765 unsigned int r, g, b, h, s, v;
766 r = *buf++; g = *buf++; b = *buf++;
767 rgb_to_hsv (r, g, b, &h, &s, &v);
768
769 feature_update_pass_2 (&f_h, h);
770 feature_update_pass_2 (&f_s, s);
771 feature_update_pass_2 (&f_v, v);
772
773 len -= 3;
774 }
775
776 feature_finish_pass_2 (&f_h);
777 feature_finish_pass_2 (&f_s);
778 feature_finish_pass_2 (&f_v);
779 }
780
781 hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.;
782 hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ;
783 hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5;
532 784
533 av_push (result, histsv); 785 av_push (result, histsv);
534 } 786 }
535 787
536 RETVAL = newRV_noinc ((SV *)result); 788 RETVAL = newRV_noinc ((SV *)result);
537} 789}
538 OUTPUT: 790 OUTPUT:
539 RETVAL 791 RETVAL
540 792
541

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