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

Comparing CV/CV.xs (file contents):
Revision 1.19 by root, Wed Jul 20 22:33:01 2005 UTC vs.
Revision 1.29 by root, Sat Sep 24 01:25:17 2005 UTC

… …
4 4
5#include <string.h> 5#include <string.h>
6#include <setjmp.h> 6#include <setjmp.h>
7 7
8#include <jpeglib.h> 8#include <jpeglib.h>
9#include <glib.h>
10#include <gtk/gtk.h>
9#include <gdk-pixbuf/gdk-pixbuf.h> 11#include <gdk-pixbuf/gdk-pixbuf.h>
10 12
11#include <gperl.h> 13#include <gperl.h>
12#include <gtk2perl.h> 14#include <gtk2perl.h>
13 15
… …
124 126
125MODULE = Gtk2::CV PACKAGE = Gtk2::CV 127MODULE = Gtk2::CV PACKAGE = Gtk2::CV
126 128
127PROTOTYPES: ENABLE 129PROTOTYPES: ENABLE
128 130
131# missing function in perl. really :)
132int
133common_prefix_length (a, b)
134 unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg);
135 unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg);
136 CODE:
137 RETVAL = 0;
138
139 while (*a == *b && *a)
140 {
141 RETVAL += (*a & 0xc0) != 0x80;
142 a++, b++;
143 }
144
145 OUTPUT:
146 RETVAL
147
148# missing in Gtk2 perl module
149
150gboolean
151gdk_net_wm_supports (GdkAtom property)
152 CODE:
153#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)
154 RETVAL = gdk_net_wm_supports (property);
155#else
156 RETVAL = 0;
157#endif
158 OUTPUT:
159 RETVAL
160
129GdkPixbuf_noinc * 161GdkPixbuf_noinc *
130transpose (GdkPixbuf *pb) 162dealpha_expose (GdkPixbuf *pb)
131 CODE: 163 CODE:
132{ 164{
133 int w = gdk_pixbuf_get_width (pb); 165 int w = gdk_pixbuf_get_width (pb);
134 int h = gdk_pixbuf_get_height (pb); 166 int h = gdk_pixbuf_get_height (pb);
135 int bpp = gdk_pixbuf_get_n_channels (pb); 167 int bpp = gdk_pixbuf_get_n_channels (pb);
136 int x, y, i; 168 int x, y, i;
137 guchar *src = gdk_pixbuf_get_pixels (pb), *dst; 169 guchar *src = gdk_pixbuf_get_pixels (pb), *dst;
138 int sstr = gdk_pixbuf_get_rowstride (pb), dstr; 170 int sstr = gdk_pixbuf_get_rowstride (pb), dstr;
139 171
140 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w); 172 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);
141 173
142 dst = gdk_pixbuf_get_pixels (RETVAL); 174 dst = gdk_pixbuf_get_pixels (RETVAL);
143 dstr = gdk_pixbuf_get_rowstride (RETVAL); 175 dstr = gdk_pixbuf_get_rowstride (RETVAL);
144 176
145 for (y = 0; y < h; y++)
146 for (x = 0; x < w; x++) 177 for (x = 0; x < w; x++)
178 for (y = 0; y < h; y++)
147 for (i = 0; i < bpp; i++) 179 for (i = 0; i < 3; i++)
148 dst[y * bpp + x * dstr + i] = src[x * bpp + y * sstr + i]; 180 dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i];
149} 181}
150 OUTPUT: 182 OUTPUT:
151 RETVAL 183 RETVAL
152 184
153GdkPixbuf_noinc * 185GdkPixbuf_noinc *
154flop (GdkPixbuf *pb) 186rotate (GdkPixbuf *pb, int angle)
155 CODE: 187 CODE:
156{ 188 RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE
157 int w = gdk_pixbuf_get_width (pb); 189 : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE
158 int h = gdk_pixbuf_get_height (pb); 190 : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN
159 int bpp = gdk_pixbuf_get_n_channels (pb); 191 : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE
160 int x, y, i; 192 : angle);
161 guchar *src = gdk_pixbuf_get_pixels (pb), *dst;
162 int sstr = gdk_pixbuf_get_rowstride (pb), dstr;
163
164 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h);
165
166 dst = gdk_pixbuf_get_pixels (RETVAL);
167 dstr = gdk_pixbuf_get_rowstride (RETVAL);
168
169 for (y = 0; y < h; y++)
170 for (x = 0; x < w; x++)
171 for (i = 0; i < bpp; i++)
172 dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i];
173}
174 OUTPUT: 193 OUTPUT:
175 RETVAL 194 RETVAL
176 195
177GdkPixbuf_noinc * 196GdkPixbuf_noinc *
178load_jpeg (char *path, int thumbnail=0) 197load_jpeg (SV *path, int thumbnail=0)
179 CODE: 198 CODE:
180{ 199{
181 struct jpeg_decompress_struct cinfo; 200 struct jpeg_decompress_struct cinfo;
182 struct jpg_err_mgr jerr; 201 struct jpg_err_mgr jerr;
183 guchar *data; 202 guchar *data;
184 int rs; 203 int rs;
185 FILE *fp; 204 FILE *fp;
186 volatile GdkPixbuf *pb = 0; 205 volatile GdkPixbuf *pb = 0;
206 gchar *filename;
207
187 RETVAL = 0; 208 RETVAL = 0;
188 209
189 if (!(fp = fopen (path, "rb"))) 210 filename = g_filename_from_utf8 (SvPVutf8_nolen (path), -1, 0, 0, 0);
211 fp = fopen (filename, "rb");
212 g_free (filename);
213
214 if (!fp)
190 XSRETURN_UNDEF; 215 XSRETURN_UNDEF;
191 216
192 cinfo.err = jpeg_std_error (&jerr.err); 217 cinfo.err = jpeg_std_error (&jerr.err);
193 218
194 jerr.err.error_exit = cv_error_exit; 219 jerr.err.error_exit = cv_error_exit;
… …
225 { 250 {
226 cinfo.dct_method = JDCT_FASTEST; 251 cinfo.dct_method = JDCT_FASTEST;
227 cinfo.do_fancy_upsampling = FALSE; 252 cinfo.do_fancy_upsampling = FALSE;
228 253
229 while (cinfo.scale_denom < 8 254 while (cinfo.scale_denom < 8
230 && (cinfo.output_width >> 1) >= IW 255 && cinfo.output_width >= IW*4
231 && (cinfo.output_height >> 1) >= IH) 256 && cinfo.output_height >= IH*4)
232 { 257 {
233 cinfo.scale_denom <<= 1; 258 cinfo.scale_denom <<= 1;
234 jpeg_calc_output_dimensions (&cinfo); 259 jpeg_calc_output_dimensions (&cinfo);
235 } 260 }
236 } 261 }
… …
275foldcase (SV *pathsv) 300foldcase (SV *pathsv)
276 PROTOTYPE: $ 301 PROTOTYPE: $
277 CODE: 302 CODE:
278{ 303{
279 STRLEN plen; 304 STRLEN plen;
280 U8 *path = SvPVutf8 (pathsv, plen); 305 U8 *path = (U8 *)SvPVutf8 (pathsv, plen);
281 U8 *pend = path + plen; 306 U8 *pend = path + plen;
282 U8 dst [plen * 6 * 3], *dstp = dst; 307 U8 dst [plen * 6 * 3], *dstp = dst;
283 308
284 while (path < pend) 309 while (path < pend)
285 { 310 {
… …
306 dstp += cl; 331 dstp += cl;
307 path += is_utf8_char (path); 332 path += is_utf8_char (path);
308 } 333 }
309 } 334 }
310 335
311 RETVAL = newSVpvn (dst, dstp - dst); 336 RETVAL = newSVpvn ((const char *)dst, dstp - dst);
312} 337}
313 OUTPUT: 338 OUTPUT:
314 RETVAL 339 RETVAL
315 340
316GdkPixbuf_noinc * 341GdkPixbuf_noinc *
317p7_to_pb (int w, int h, guchar *src) 342p7_to_pb (int w, int h, SV *src_sv)
343 PROTOTYPE: @
318 CODE: 344 CODE:
319{ 345{
320 int x, y; 346 int x, y;
321 guchar *dst, *d; 347 guchar *dst, *d;
322 int dstr; 348 int dstr;
349 guchar *src = (guchar *)SvPVbyte_nolen (src_sv);
323 350
324 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); 351 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);
325 dst = gdk_pixbuf_get_pixels (RETVAL); 352 dst = gdk_pixbuf_get_pixels (RETVAL);
326 dstr = gdk_pixbuf_get_rowstride (RETVAL); 353 dstr = gdk_pixbuf_get_rowstride (RETVAL);
327 354
… …
336 } 363 }
337} 364}
338 OUTPUT: 365 OUTPUT:
339 RETVAL 366 RETVAL
340 367
368#############################################################################
369
370MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript
371
372void
373dump_ascii85 (PerlIO *fp, GdkPixbuf *pb)
374 CODE:
375{
376 int w = gdk_pixbuf_get_width (pb);
377 int h = gdk_pixbuf_get_height (pb);
378 int x, y, i;
379 guchar *dst;
380 int bpp = gdk_pixbuf_get_n_channels (pb);
381 guchar *src = gdk_pixbuf_get_pixels (pb);
382 int sstr = gdk_pixbuf_get_rowstride (pb);
383
384 a85_init ();
385
386 for (y = 0; y < h; y++)
387 for (x = 0; x < w; x++)
388 for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
389 a85_push (fp, src [x * bpp + y * sstr + i]);
390
391 a85_finish (fp);
392}
393
394void
395dump_binary (PerlIO *fp, GdkPixbuf *pb)
396 CODE:
397{
398 int w = gdk_pixbuf_get_width (pb);
399 int h = gdk_pixbuf_get_height (pb);
400 int x, y, i;
401 guchar *dst;
402 int bpp = gdk_pixbuf_get_n_channels (pb);
403 guchar *src = gdk_pixbuf_get_pixels (pb);
404 int sstr = gdk_pixbuf_get_rowstride (pb);
405
406 for (y = 0; y < h; y++)
407 for (x = 0; x < w; x++)
408 for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
409 PerlIO_putc (fp, src [x * bpp + y * sstr + i]);
410}
411
412#############################################################################
413
414MODULE = Gtk2::CV PACKAGE = Gtk2::CV
415
341SV * 416SV *
342pb_to_p7 (GdkPixbuf *pb) 417pb_to_hv84 (GdkPixbuf *pb)
343 CODE: 418 CODE:
344{ 419{
345 int w = gdk_pixbuf_get_width (pb); 420 int w = gdk_pixbuf_get_width (pb);
346 int h = gdk_pixbuf_get_height (pb); 421 int h = gdk_pixbuf_get_height (pb);
347 int x, y; 422 int x, y;
348 guchar *dst; 423 guchar *dst;
349 int bpp = gdk_pixbuf_get_n_channels (pb); 424 int bpp = gdk_pixbuf_get_n_channels (pb);
350 guchar *src = gdk_pixbuf_get_pixels (pb); 425 guchar *src = gdk_pixbuf_get_pixels (pb);
351 int sstr = gdk_pixbuf_get_rowstride (pb); 426 int sstr = gdk_pixbuf_get_rowstride (pb);
352 int Er[IW], Eg[IW], Eb[IW];
353 int seed = 77;
354 427
355 RETVAL = newSV (w * h); 428 RETVAL = newSV (6 * 8 * 12 / 8);
356 SvPOK_only (RETVAL); 429 SvPOK_only (RETVAL);
357 SvCUR_set (RETVAL, w * h); 430 SvCUR_set (RETVAL, 6 * 8 * 12 / 8);
358 431
359 dst = SvPVX (RETVAL); 432 dst = (guchar *)SvPVX (RETVAL);
360
361 memset (Er, 0, sizeof (int) * IW);
362 memset (Eg, 0, sizeof (int) * IW);
363 memset (Eb, 0, sizeof (int) * IW);
364 433
365 /* some primitive error distribution + random dithering */ 434 /* some primitive error distribution + random dithering */
366 435
367 for (y = 0; y < h; y++) 436 for (y = 0; y < h; y++)
368 { 437 {
369 int er = 0, eg = 0, eb = 0; 438 guchar *p = src + y * sstr;
370 439
371 for (x = 0; x < w; x++) 440 for (x = 0; x < w; x += 2)
372 { 441 {
373 int r, g, b; 442 unsigned int r, g, b, h, s, v, H, V1, V2;
374 guchar *p = src + x * bpp + y * sstr;
375 443
376 r = ((p[0] + er + Er[x]) * 7 + (RAND & 127) + 64) / 255; 444 if (bpp == 3)
377 g = ((p[1] + eg + Eg[x]) * 7 + (RAND & 127) + 64) / 255; 445 r = *p++, g = *p++, b = *p++;
378 b = ((p[2] + eb + Eb[x]) * 3 + (RAND & 127) + 64) / 255; 446 else if (bpp == 1)
447 r = g = b = *p++;
448 else
449 abort ();
379 450
380 r = r > 7 ? 7 : r < 0 ? 0 : r; 451 rgb_to_hsv (r, g, b, &h, &s, &v);
381 g = g > 7 ? 7 : g < 0 ? 0 : g;
382 b = b > 3 ? 3 : b < 0 ? 0 : b;
383 452
384 er += p[0] - (r * 255 + 4) / 7; 453 H = (h * 15 / 255) << 4;
385 eg += p[1] - (g * 255 + 4) / 7; 454 V1 = v;
386 eb += p[2] - (b * 255 + 2) / 3;
387 455
388 Er[x] = er >> 1; er -= (er + 1) >> 1; 456 if (bpp == 3)
389 Eg[x] = eg >> 1; eg -= (eg + 1) >> 1; 457 r = *p++, g = *p++, b = *p++;
390 Eb[x] = eb >> 1; eb -= (eb + 1) >> 1; 458 else if (bpp == 1)
459 r = g = b = *p++;
460 else
461 abort ();
391 462
392 *dst++ = r << 5 | g << 2 | b; 463 rgb_to_hsv (r, g, b, &h, &s, &v);
464
465 H |= h * 15 / 255;
466 V2 = v;
467
468 *dst++ = H;
469 *dst++ = V1;
470 *dst++ = V2;
393 } 471 }
394 } 472 }
395} 473}
396 OUTPUT: 474 OUTPUT:
397 RETVAL 475 RETVAL
398 476
399SV * 477SV *
478hv84_to_av (unsigned char *hv84)
479 CODE:
480{
481 int i = 72 / 3;
482 AV *av = newAV ();
483
484 RETVAL = (SV *)newRV_noinc ((SV *)av);
485 while (i--)
486 {
487 int h = *hv84++;
488 int v1 = *hv84++;
489 int v2 = *hv84++;
490
491 av_push (av, newSViv (v1));
492 av_push (av, newSViv ((h >> 4) * 255 / 15));
493 av_push (av, newSViv (v2));
494 av_push (av, newSViv ((h & 15) * 255 / 15));
495 }
496}
497 OUTPUT:
498 RETVAL
499
500#############################################################################
501
502MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster
503
504SV *
400make_histogram (SV *ar) 505make_histograms (SV *ar)
401 CODE: 506 CODE:
402{ 507{
403 int i; 508 int i;
404 AV *av, *result; 509 AV *av, *result;
405 510
… …
448 RETVAL = newRV_noinc ((SV *)result); 553 RETVAL = newRV_noinc ((SV *)result);
449} 554}
450 OUTPUT: 555 OUTPUT:
451 RETVAL 556 RETVAL
452 557
453#############################################################################
454 558
455MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript
456
457void
458dump_ascii85 (PerlIO *fp, GdkPixbuf *pb)
459 CODE:
460{
461 int w = gdk_pixbuf_get_width (pb);
462 int h = gdk_pixbuf_get_height (pb);
463 int x, y, i;
464 guchar *dst;
465 int bpp = gdk_pixbuf_get_n_channels (pb);
466 guchar *src = gdk_pixbuf_get_pixels (pb);
467 int sstr = gdk_pixbuf_get_rowstride (pb);
468
469 a85_init ();
470
471 for (y = 0; y < h; y++)
472 for (x = 0; x < w; x++)
473 for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
474 a85_push (fp, src [x * bpp + y * sstr + i]);
475
476 a85_finish (fp);
477}
478
479void
480dump_binary (PerlIO *fp, GdkPixbuf *pb)
481 CODE:
482{
483 int w = gdk_pixbuf_get_width (pb);
484 int h = gdk_pixbuf_get_height (pb);
485 int x, y, i;
486 guchar *dst;
487 int bpp = gdk_pixbuf_get_n_channels (pb);
488 guchar *src = gdk_pixbuf_get_pixels (pb);
489 int sstr = gdk_pixbuf_get_rowstride (pb);
490
491 for (y = 0; y < h; y++)
492 for (x = 0; x < w; x++)
493 for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
494 PerlIO_putc (fp, src [x * bpp + y * sstr + i]);
495}
496
497#############################################################################
498
499MODULE = Gtk2::CV PACKAGE = Gtk2::CV
500
501SV *
502pb_to_hv84 (GdkPixbuf *pb)
503 CODE:
504{
505 int w = gdk_pixbuf_get_width (pb);
506 int h = gdk_pixbuf_get_height (pb);
507 int x, y;
508 guchar *dst;
509 int bpp = gdk_pixbuf_get_n_channels (pb);
510 guchar *src = gdk_pixbuf_get_pixels (pb);
511 int sstr = gdk_pixbuf_get_rowstride (pb);
512
513 RETVAL = newSV (6 * 8 * 12 / 8);
514 SvPOK_only (RETVAL);
515 SvCUR_set (RETVAL, 6 * 8 * 12 / 8);
516
517 dst = SvPVX (RETVAL);
518
519 /* some primitive error distribution + random dithering */
520
521 for (y = 0; y < h; y++)
522 {
523 guchar *p = src + y * sstr;
524
525 for (x = 0; x < w; x += 2)
526 {
527 unsigned int r, g, b, h, s, v, H, V1, V2;
528
529 if (bpp == 3)
530 r = *p++, g = *p++, b = *p++;
531 else if (bpp == 1)
532 r = g = b = *p++;
533 else
534 abort ();
535
536 rgb_to_hsv (r, g, b, &h, &s, &v);
537
538 H = (h * 15 / 255) << 4;
539 V1 = v;
540
541 if (bpp == 3)
542 r = *p++, g = *p++, b = *p++;
543 else if (bpp == 1)
544 r = g = b = *p++;
545 else
546 abort ();
547
548 rgb_to_hsv (r, g, b, &h, &s, &v);
549
550 H |= h * 15 / 255;
551 V2 = v;
552
553 *dst++ = H;
554 *dst++ = V1;
555 *dst++ = V2;
556 }
557 }
558}
559 OUTPUT:
560 RETVAL
561
562SV *
563hv84_to_av (unsigned char *hv84)
564 CODE:
565{
566 int i = 72 / 3;
567 AV *av = newAV ();
568
569 RETVAL = (SV *)newRV_noinc ((SV *)av);
570 while (i--)
571 {
572 int h = *hv84++;
573 int v1 = *hv84++;
574 int v2 = *hv84++;
575
576 av_push (av, newSViv (v1));
577 av_push (av, newSViv ((h >> 4) * 255 / 15));
578 av_push (av, newSViv (v2));
579 av_push (av, newSViv ((h & 15) * 255 / 15));
580 }
581}
582 OUTPUT:
583 RETVAL
584
585
586

Diff Legend

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