ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/CV/CV.xs
(Generate patch)

Comparing CV/CV.xs (file contents):
Revision 1.23 by root, Tue Aug 16 23:50:39 2005 UTC vs.
Revision 1.34 by root, Tue Mar 7 16:26:25 2006 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
16#define IW 80 /* MUST match Schnauer.pm! */ 19#define IW 80 /* MUST match Schnauzer.pm! */
17#define IH 60 /* MUST match Schnauer.pm! */ 20#define IH 60 /* MUST match Schnauzer.pm! */
18 21
19#define RAND (seed = (seed + 7141) * 54773 % 134456) 22#define RAND (seed = (seed + 7141) * 54773 % 134456)
20 23
21#define LINELENGTH 240 24#define LINELENGTH 240
22 25
… …
126 129
127MODULE = Gtk2::CV PACKAGE = Gtk2::CV 130MODULE = Gtk2::CV PACKAGE = Gtk2::CV
128 131
129PROTOTYPES: ENABLE 132PROTOTYPES: ENABLE
130 133
134# missing function in perl. really :)
135int
136common_prefix_length (a, b)
137 unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg);
138 unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg);
139 CODE:
140 RETVAL = 0;
141
142 while (*a == *b && *a)
143 {
144 RETVAL += (*a & 0xc0) != 0x80;
145 a++, b++;
146 }
147
148 OUTPUT:
149 RETVAL
150
151const char *
152magic (const char *path)
153 CODE:
154{
155 static magic_t cookie;
156
157 if (!cookie)
158 {
159 cookie = magic_open (MAGIC_NONE);
160
161 if (cookie)
162 magic_load (cookie, 0);
163 else
164 XSRETURN_UNDEF;
165 }
166
167 RETVAL = magic_file (cookie, path);
168}
169 OUTPUT:
170 RETVAL
171
172const char *
173magic_mime (const char *path)
174 CODE:
175{
176 static magic_t cookie;
177
178 if (!cookie)
179 {
180 cookie = magic_open (MAGIC_MIME);
181
182 if (cookie)
183 magic_load (cookie, 0);
184 else
185 XSRETURN_UNDEF;
186 }
187
188 RETVAL = magic_file (cookie, path);
189}
190 OUTPUT:
191 RETVAL
192
131# missing in Gtk2 perl module 193# missing in Gtk2 perl module
132 194
133gboolean 195gboolean
134gdk_net_wm_supports (GdkAtom property) 196gdk_net_wm_supports (GdkAtom property)
135 CODE: 197 CODE:
… …
140#endif 202#endif
141 OUTPUT: 203 OUTPUT:
142 RETVAL 204 RETVAL
143 205
144GdkPixbuf_noinc * 206GdkPixbuf_noinc *
145transpose (GdkPixbuf *pb) 207dealpha_expose (GdkPixbuf *pb)
146 CODE: 208 CODE:
147{ 209{
148 int w = gdk_pixbuf_get_width (pb); 210 int w = gdk_pixbuf_get_width (pb);
149 int h = gdk_pixbuf_get_height (pb); 211 int h = gdk_pixbuf_get_height (pb);
150 int bpp = gdk_pixbuf_get_n_channels (pb); 212 int bpp = gdk_pixbuf_get_n_channels (pb);
151 int x, y, i; 213 int x, y, i;
152 guchar *src = gdk_pixbuf_get_pixels (pb), *dst; 214 guchar *src = gdk_pixbuf_get_pixels (pb), *dst;
153 int sstr = gdk_pixbuf_get_rowstride (pb), dstr; 215 int sstr = gdk_pixbuf_get_rowstride (pb), dstr;
154 216
155 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w); 217 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);
156 218
157 dst = gdk_pixbuf_get_pixels (RETVAL); 219 dst = gdk_pixbuf_get_pixels (RETVAL);
158 dstr = gdk_pixbuf_get_rowstride (RETVAL); 220 dstr = gdk_pixbuf_get_rowstride (RETVAL);
159 221
160 for (y = 0; y < h; y++)
161 for (x = 0; x < w; x++) 222 for (x = 0; x < w; x++)
223 for (y = 0; y < h; y++)
162 for (i = 0; i < bpp; i++) 224 for (i = 0; i < 3; i++)
163 dst[y * bpp + x * dstr + i] = src[x * bpp + y * sstr + i]; 225 dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i];
164} 226}
165 OUTPUT: 227 OUTPUT:
166 RETVAL 228 RETVAL
167 229
168GdkPixbuf_noinc * 230GdkPixbuf_noinc *
169flop (GdkPixbuf *pb) 231rotate (GdkPixbuf *pb, int angle)
170 CODE: 232 CODE:
171{ 233 RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE
172 int w = gdk_pixbuf_get_width (pb); 234 : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE
173 int h = gdk_pixbuf_get_height (pb); 235 : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN
174 int bpp = gdk_pixbuf_get_n_channels (pb); 236 : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE
175 int x, y, i; 237 : angle);
176 guchar *src = gdk_pixbuf_get_pixels (pb), *dst;
177 int sstr = gdk_pixbuf_get_rowstride (pb), dstr;
178
179 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h);
180
181 dst = gdk_pixbuf_get_pixels (RETVAL);
182 dstr = gdk_pixbuf_get_rowstride (RETVAL);
183
184 for (y = 0; y < h; y++)
185 for (x = 0; x < w; x++)
186 for (i = 0; i < bpp; i++)
187 dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i];
188}
189 OUTPUT: 238 OUTPUT:
190 RETVAL 239 RETVAL
191 240
192GdkPixbuf_noinc * 241GdkPixbuf_noinc *
193load_jpeg (SV *path, int thumbnail=0) 242load_jpeg (SV *path, int thumbnail=0)
… …
197 struct jpg_err_mgr jerr; 246 struct jpg_err_mgr jerr;
198 guchar *data; 247 guchar *data;
199 int rs; 248 int rs;
200 FILE *fp; 249 FILE *fp;
201 volatile GdkPixbuf *pb = 0; 250 volatile GdkPixbuf *pb = 0;
202 gchar *filename;
203 251
204 RETVAL = 0; 252 RETVAL = 0;
205 253
206 filename = g_filename_from_utf8 (SvPVutf8_nolen (path), -1, 0, 0, 0);
207 fp = fopen (filename, "rb"); 254 fp = fopen (SvPVbyte_nolen (path), "rb");
208 g_free (filename);
209 255
210 if (!fp) 256 if (!fp)
211 XSRETURN_UNDEF; 257 XSRETURN_UNDEF;
212 258
213 cinfo.err = jpeg_std_error (&jerr.err); 259 cinfo.err = jpeg_std_error (&jerr.err);
… …
286 jpeg_destroy_decompress (&cinfo); 332 jpeg_destroy_decompress (&cinfo);
287} 333}
288 OUTPUT: 334 OUTPUT:
289 RETVAL 335 RETVAL
290 336
337void
338compare (GdkPixbuf *a, GdkPixbuf *b)
339 PPCODE:
340{
341 int w = gdk_pixbuf_get_width (a);
342 int h = gdk_pixbuf_get_height (a);
343 int sa = gdk_pixbuf_get_rowstride (a);
344 int sb = gdk_pixbuf_get_rowstride (b);
345
346 guchar *pa = gdk_pixbuf_get_pixels (a);
347 guchar *pb = gdk_pixbuf_get_pixels (b);
348
349 int x, y;
350
351 assert (w == gdk_pixbuf_get_width (b));
352 assert (h == gdk_pixbuf_get_height (b));
353
354 assert (gdk_pixbuf_get_n_channels (a) == 3);
355 assert (gdk_pixbuf_get_n_channels (b) == 3);
356
357 double diff = 0.;
358 int peak = 0;
359
360 if (x && y)
361 for (y = 0; y < h; y++)
362 {
363 guchar *pa_ = pa + y * sa;
364 guchar *pb_ = pb + y * sb;
365
366 for (x = 0; x < w; x++)
367 {
368 int d;
369
370 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));
372 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d));
373 }
374 }
375
376 EXTEND (SP, 2);
377 PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.)))));
378 PUSHs (sv_2mortal (newSVnv (peak / 255.)));
379}
380
291############################################################################# 381#############################################################################
292 382
293MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer 383MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer
294 384
295SV * 385SV *
296foldcase (SV *pathsv) 386foldcase (SV *pathsv)
297 PROTOTYPE: $ 387 PROTOTYPE: $
298 CODE: 388 CODE:
299{ 389{
300 STRLEN plen; 390 STRLEN plen;
301 U8 *path = SvPVutf8 (pathsv, plen); 391 U8 *path = (U8 *)SvPVutf8 (pathsv, plen);
302 U8 *pend = path + plen; 392 U8 *pend = path + plen;
303 U8 dst [plen * 6 * 3], *dstp = dst; 393 U8 dst [plen * 6 * 3], *dstp = dst;
304 394
305 while (path < pend) 395 while (path < pend)
306 { 396 {
… …
327 dstp += cl; 417 dstp += cl;
328 path += is_utf8_char (path); 418 path += is_utf8_char (path);
329 } 419 }
330 } 420 }
331 421
332 RETVAL = newSVpvn (dst, dstp - dst); 422 RETVAL = newSVpvn ((const char *)dst, dstp - dst);
333} 423}
334 OUTPUT: 424 OUTPUT:
335 RETVAL 425 RETVAL
336 426
337GdkPixbuf_noinc * 427GdkPixbuf_noinc *
338p7_to_pb (int w, int h, guchar *src) 428p7_to_pb (int w, int h, SV *src_sv)
339 PROTOTYPE: @ 429 PROTOTYPE: @
340 CODE: 430 CODE:
341{ 431{
342 int x, y; 432 int x, y;
343 guchar *dst, *d; 433 guchar *dst, *d;
344 int dstr; 434 int dstr;
435 guchar *src = (guchar *)SvPVbyte_nolen (src_sv);
345 436
346 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); 437 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);
347 dst = gdk_pixbuf_get_pixels (RETVAL); 438 dst = gdk_pixbuf_get_pixels (RETVAL);
348 dstr = gdk_pixbuf_get_rowstride (RETVAL); 439 dstr = gdk_pixbuf_get_rowstride (RETVAL);
349 440
… …
358 } 449 }
359} 450}
360 OUTPUT: 451 OUTPUT:
361 RETVAL 452 RETVAL
362 453
454#############################################################################
455
456MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript
457
458void
459dump_ascii85 (PerlIO *fp, GdkPixbuf *pb)
460 CODE:
461{
462 int w = gdk_pixbuf_get_width (pb);
463 int h = gdk_pixbuf_get_height (pb);
464 int x, y, i;
465 guchar *dst;
466 int bpp = gdk_pixbuf_get_n_channels (pb);
467 guchar *src = gdk_pixbuf_get_pixels (pb);
468 int sstr = gdk_pixbuf_get_rowstride (pb);
469
470 a85_init ();
471
472 for (y = 0; y < h; y++)
473 for (x = 0; x < w; x++)
474 for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
475 a85_push (fp, src [x * bpp + y * sstr + i]);
476
477 a85_finish (fp);
478}
479
480void
481dump_binary (PerlIO *fp, GdkPixbuf *pb)
482 CODE:
483{
484 int w = gdk_pixbuf_get_width (pb);
485 int h = gdk_pixbuf_get_height (pb);
486 int x, y, i;
487 guchar *dst;
488 int bpp = gdk_pixbuf_get_n_channels (pb);
489 guchar *src = gdk_pixbuf_get_pixels (pb);
490 int sstr = gdk_pixbuf_get_rowstride (pb);
491
492 for (y = 0; y < h; y++)
493 for (x = 0; x < w; x++)
494 for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
495 PerlIO_putc (fp, src [x * bpp + y * sstr + i]);
496}
497
498#############################################################################
499
500MODULE = Gtk2::CV PACKAGE = Gtk2::CV
501
363SV * 502SV *
364pb_to_p7 (GdkPixbuf *pb) 503pb_to_hv84 (GdkPixbuf *pb)
365 CODE: 504 CODE:
366{ 505{
367 int w = gdk_pixbuf_get_width (pb); 506 int w = gdk_pixbuf_get_width (pb);
368 int h = gdk_pixbuf_get_height (pb); 507 int h = gdk_pixbuf_get_height (pb);
369 int x, y; 508 int x, y;
370 guchar *dst; 509 guchar *dst;
371 int bpp = gdk_pixbuf_get_n_channels (pb); 510 int bpp = gdk_pixbuf_get_n_channels (pb);
372 guchar *src = gdk_pixbuf_get_pixels (pb); 511 guchar *src = gdk_pixbuf_get_pixels (pb);
373 int sstr = gdk_pixbuf_get_rowstride (pb); 512 int sstr = gdk_pixbuf_get_rowstride (pb);
374 int Er[IW], Eg[IW], Eb[IW];
375 int seed = 77;
376
377 RETVAL = newSV (w * h);
378 SvPOK_only (RETVAL);
379 SvCUR_set (RETVAL, w * h);
380
381 dst = SvPVX (RETVAL);
382
383 memset (Er, 0, sizeof (int) * IW);
384 memset (Eg, 0, sizeof (int) * IW);
385 memset (Eb, 0, sizeof (int) * IW);
386
387 /* some primitive error distribution + random dithering */
388
389 for (y = 0; y < h; y++)
390 {
391 int er = 0, eg = 0, eb = 0;
392
393 for (x = 0; x < w; x++)
394 {
395 int r, g, b;
396 guchar *p = src + x * bpp + y * sstr;
397
398 r = ((p[0] + er + Er[x]) * 7 + (RAND & 127) + 64) / 255;
399 g = ((p[1] + eg + Eg[x]) * 7 + (RAND & 127) + 64) / 255;
400 b = ((p[2] + eb + Eb[x]) * 3 + (RAND & 127) + 64) / 255;
401
402 r = r > 7 ? 7 : r < 0 ? 0 : r;
403 g = g > 7 ? 7 : g < 0 ? 0 : g;
404 b = b > 3 ? 3 : b < 0 ? 0 : b;
405
406 er += p[0] - (r * 255 + 4) / 7;
407 eg += p[1] - (g * 255 + 4) / 7;
408 eb += p[2] - (b * 255 + 2) / 3;
409
410 Er[x] = er >> 1; er -= (er + 1) >> 1;
411 Eg[x] = eg >> 1; eg -= (eg + 1) >> 1;
412 Eb[x] = eb >> 1; eb -= (eb + 1) >> 1;
413
414 *dst++ = r << 5 | g << 2 | b;
415 }
416 }
417}
418 OUTPUT:
419 RETVAL
420
421#############################################################################
422
423MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript
424
425void
426dump_ascii85 (PerlIO *fp, GdkPixbuf *pb)
427 CODE:
428{
429 int w = gdk_pixbuf_get_width (pb);
430 int h = gdk_pixbuf_get_height (pb);
431 int x, y, i;
432 guchar *dst;
433 int bpp = gdk_pixbuf_get_n_channels (pb);
434 guchar *src = gdk_pixbuf_get_pixels (pb);
435 int sstr = gdk_pixbuf_get_rowstride (pb);
436
437 a85_init ();
438
439 for (y = 0; y < h; y++)
440 for (x = 0; x < w; x++)
441 for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
442 a85_push (fp, src [x * bpp + y * sstr + i]);
443
444 a85_finish (fp);
445}
446
447void
448dump_binary (PerlIO *fp, GdkPixbuf *pb)
449 CODE:
450{
451 int w = gdk_pixbuf_get_width (pb);
452 int h = gdk_pixbuf_get_height (pb);
453 int x, y, i;
454 guchar *dst;
455 int bpp = gdk_pixbuf_get_n_channels (pb);
456 guchar *src = gdk_pixbuf_get_pixels (pb);
457 int sstr = gdk_pixbuf_get_rowstride (pb);
458
459 for (y = 0; y < h; y++)
460 for (x = 0; x < w; x++)
461 for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
462 PerlIO_putc (fp, src [x * bpp + y * sstr + i]);
463}
464
465#############################################################################
466
467MODULE = Gtk2::CV PACKAGE = Gtk2::CV
468
469SV *
470pb_to_hv84 (GdkPixbuf *pb)
471 CODE:
472{
473 int w = gdk_pixbuf_get_width (pb);
474 int h = gdk_pixbuf_get_height (pb);
475 int x, y;
476 guchar *dst;
477 int bpp = gdk_pixbuf_get_n_channels (pb);
478 guchar *src = gdk_pixbuf_get_pixels (pb);
479 int sstr = gdk_pixbuf_get_rowstride (pb);
480 513
481 RETVAL = newSV (6 * 8 * 12 / 8); 514 RETVAL = newSV (6 * 8 * 12 / 8);
482 SvPOK_only (RETVAL); 515 SvPOK_only (RETVAL);
483 SvCUR_set (RETVAL, 6 * 8 * 12 / 8); 516 SvCUR_set (RETVAL, 6 * 8 * 12 / 8);
484 517
485 dst = SvPVX (RETVAL); 518 dst = (guchar *)SvPVX (RETVAL);
486 519
487 /* some primitive error distribution + random dithering */ 520 /* some primitive error distribution + random dithering */
488 521
489 for (y = 0; y < h; y++) 522 for (y = 0; y < h; y++)
490 { 523 {

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines