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

Comparing CV/CV.xs (file contents):
Revision 1.37 by root, Thu Jun 22 22:01:26 2006 UTC vs.
Revision 1.54 by root, Sat Dec 23 08:04:48 2017 UTC

… …
7#include <math.h> 7#include <math.h>
8 8
9#include <magic.h> 9#include <magic.h>
10 10
11#include <jpeglib.h> 11#include <jpeglib.h>
12#include <jerror.h>
13
12#include <glib.h> 14#include <glib.h>
13#include <gtk/gtk.h> 15#include <gtk/gtk.h>
16#include <gdk/gdkx.h>
14#include <gdk-pixbuf/gdk-pixbuf.h> 17#include <gdk-pixbuf/gdk-pixbuf.h>
15 18
16#include <gperl.h> 19#include <gperl.h>
17#include <gtk2perl.h> 20#include <gtk2perl.h>
18 21
22#include <assert.h>
23
24#if WEBP
25#include <webp/demux.h>
26#include <webp/decode.h>
27#endif
28
29#include "perlmulticore.h"
30
19#define IW 80 /* MUST match Schnauzer.pm! */ 31#define IW 80 /* MUST match Schnauzer.pm! */
20#define IH 60 /* MUST match Schnauzer.pm! */ 32#define IH 60 /* MUST match Schnauzer.pm! */
21 33
22#define RAND (seed = (seed + 7141) * 54773 % 134456) 34#define RAND (seed = (seed + 7141) * 54773 % 134456)
23 35
24#define LINELENGTH 240 36#define LINELENGTH 240
25 37
26#define ELLIPSIS "\xe2\x80\xa6" 38#define ELLIPSIS "\xe2\x80\xa6"
39
40typedef char *octet_string;
41
42static magic_t magic_cookie[2]; /* !mime, mime */
27 43
28struct jpg_err_mgr 44struct jpg_err_mgr
29{ 45{
30 struct jpeg_error_mgr err; 46 struct jpeg_error_mgr err;
31 jmp_buf setjmp_buffer; 47 jmp_buf setjmp_buffer;
32}; 48};
33 49
34static void 50static void
35cv_error_exit (j_common_ptr cinfo) 51cv_error_exit (j_common_ptr cinfo)
36{ 52{
53 cinfo->err->output_message (cinfo);
37 longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); 54 longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99);
38} 55}
39 56
40static void 57static void
41cv_error_output (j_common_ptr cinfo) 58cv_error_output (j_common_ptr cinfo)
42{ 59{
60 char msg[JMSG_LENGTH_MAX];
61
62 cinfo->err->format_message (cinfo, msg);
63
64 fprintf (stderr, "JPEG decoding error: %s\n", msg);
43 return; 65 return;
44} 66}
45 67
46static void 68static void
47rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, 69rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b,
… …
144 if (!--a85_cnt) 166 if (!--a85_cnt)
145 { 167 {
146 a85_cnt = 4; 168 a85_cnt = 4;
147 if (a85_val) 169 if (a85_val)
148 { 170 {
149 a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; 171 a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85;
150 a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; 172 a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85;
151 a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; 173 a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85;
152 a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; 174 a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85;
153 a85_ptr[0] = (a85_val ) + 33; 175 a85_ptr[0] = (a85_val ) + 33;
154 176
155 a85_ptr += 5; 177 a85_ptr += 5;
156 } 178 }
… …
180 PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); 202 PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);
181} 203}
182 204
183///////////////////////////////////////////////////////////////////////////// 205/////////////////////////////////////////////////////////////////////////////
184 206
207static void cv_ms_init (j_decompress_ptr cinfo)
208{
209}
210
211static void cv_ms_term (j_decompress_ptr cinfo)
212{
213}
214
215static boolean cv_ms_fill (j_decompress_ptr cinfo)
216{
217 ERREXIT (cinfo, JERR_INPUT_EMPTY);
218
219 return TRUE;
220}
221
222static void cv_ms_skip (j_decompress_ptr cinfo, long num_bytes)
223{
224 if (num_bytes > 0)
225 {
226 struct jpeg_source_mgr *src = (struct jpeg_source_mgr *)cinfo->src;
227
228 src->next_input_byte += num_bytes;
229 src->bytes_in_buffer -= num_bytes;
230 }
231}
232
233static void cv_jpeg_mem_src (j_decompress_ptr cinfo, void *buf, size_t buflen)
234{
235 struct jpeg_source_mgr *src;
236
237 if (!cinfo->src)
238 cinfo->src = (struct jpeg_source_mgr *)
239 (*cinfo->mem->alloc_small) (
240 (j_common_ptr) cinfo, JPOOL_PERMANENT, sizeof (struct jpeg_source_mgr)
241 );
242
243 src = (struct jpeg_source_mgr *)cinfo->src;
244 src->init_source = cv_ms_init;
245 src->fill_input_buffer = cv_ms_fill;
246 src->skip_input_data = cv_ms_skip;
247 src->resync_to_restart = jpeg_resync_to_restart;
248 src->term_source = cv_ms_term;
249 src->next_input_byte = (JOCTET *)buf;
250 src->bytes_in_buffer = buflen;
251}
252
253/////////////////////////////////////////////////////////////////////////////
254
185MODULE = Gtk2::CV PACKAGE = Gtk2::CV 255MODULE = Gtk2::CV PACKAGE = Gtk2::CV
186 256
187PROTOTYPES: ENABLE 257PROTOTYPES: ENABLE
188 258
189# missing function in perl. really :) 259# missing function in perl. really :)
… …
202 272
203 OUTPUT: 273 OUTPUT:
204 RETVAL 274 RETVAL
205 275
206const char * 276const char *
207magic (const char *path) 277magic (SV *path_or_data)
278 ALIAS:
279 magic = 0
280 magic_mime = 1
281 magic_buffer = 2
282 magic_buffer_mime = 3
208 CODE: 283 CODE:
209{ 284{
210 static magic_t cookie; 285 STRLEN len;
286 char *data = SvPVbyte (path_or_data, len);
211 287
212 if (!cookie) 288 if (!magic_cookie[0])
289 {
290 magic_cookie[0] = magic_open (MAGIC_SYMLINK);
291 magic_cookie[1] = magic_open (MAGIC_SYMLINK | MAGIC_MIME_TYPE);
292 magic_load (magic_cookie[0], 0);
293 magic_load (magic_cookie[1], 0);
213 { 294 }
214 cookie = magic_open (MAGIC_NONE);
215 295
216 if (cookie) 296 perlinterp_release ();
217 magic_load (cookie, 0);
218 else
219 XSRETURN_UNDEF;
220 }
221 297
222 RETVAL = magic_file (cookie, path); 298 RETVAL = ix & 2
299 ? magic_buffer (magic_cookie[ix & 1], data, len)
300 : magic_file (magic_cookie[ix & 1], data);
301
302 perlinterp_acquire ();
223} 303}
224 OUTPUT: 304 OUTPUT:
225 RETVAL 305 RETVAL
226 306
227const char *
228magic_mime (const char *path)
229 CODE:
230{
231 static magic_t cookie;
232
233 if (!cookie)
234 {
235 cookie = magic_open (MAGIC_MIME);
236
237 if (cookie)
238 magic_load (cookie, 0);
239 else
240 XSRETURN_UNDEF;
241 }
242
243 RETVAL = magic_file (cookie, path);
244}
245 OUTPUT:
246 RETVAL
247
248# missing in Gtk2 perl module 307# missing/broken in Gtk2 perl module
308
309void
310gdk_window_clear_hints (GdkWindow *window)
311 CODE:
312 gdk_window_set_geometry_hints (window, 0, 0);
249 313
250gboolean 314gboolean
251gdk_net_wm_supports (GdkAtom property) 315gdk_net_wm_supports (GdkAtom property)
252 CODE: 316 CODE:
253#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) 317#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)
… …
259 RETVAL 323 RETVAL
260 324
261GdkPixbuf_noinc * 325GdkPixbuf_noinc *
262dealpha_expose (GdkPixbuf *pb) 326dealpha_expose (GdkPixbuf *pb)
263 CODE: 327 CODE:
328 perlinterp_release ();
264{ 329{
265 int w = gdk_pixbuf_get_width (pb); 330 int w = gdk_pixbuf_get_width (pb);
266 int h = gdk_pixbuf_get_height (pb); 331 int h = gdk_pixbuf_get_height (pb);
267 int bpp = gdk_pixbuf_get_n_channels (pb); 332 int bpp = gdk_pixbuf_get_n_channels (pb);
268 int x, y, i; 333 int x, y, i;
… …
277 for (x = 0; x < w; x++) 342 for (x = 0; x < w; x++)
278 for (y = 0; y < h; y++) 343 for (y = 0; y < h; y++)
279 for (i = 0; i < 3; i++) 344 for (i = 0; i < 3; i++)
280 dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; 345 dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i];
281} 346}
347 perlinterp_acquire ();
282 OUTPUT: 348 OUTPUT:
283 RETVAL 349 RETVAL
284 350
285GdkPixbuf_noinc * 351GdkPixbuf_noinc *
286rotate (GdkPixbuf *pb, int angle) 352rotate (GdkPixbuf *pb, int angle)
287 CODE: 353 CODE:
354 perlinterp_release ();
355 if (angle < 0)
356 angle += 360;
288 RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE 357 RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE
289 : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE 358 : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE
290 : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN 359 : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN
291 : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE 360 : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE
292 : angle); 361 : angle);
362 perlinterp_acquire ();
293 OUTPUT: 363 OUTPUT:
294 RETVAL 364 RETVAL
295 365
366const char *
367filetype (SV *image_data)
368 CODE:
369{
370 STRLEN data_len;
371 U8 *data = SvPVbyte (image_data, data_len);
372
373 if (data_len >= 20
374 && data[0] == 0xff
375 && data[1] == 0xd8
376 && data[2] == 0xff)
377 RETVAL = "jpg";
378 else if (data_len >= 12
379 && data[ 0] == (U8)'R'
380 && data[ 1] == (U8)'I'
381 && data[ 2] == (U8)'F'
382 && data[ 3] == (U8)'F'
383 && data[ 8] == (U8)'W'
384 && data[ 9] == (U8)'E'
385 && data[10] == (U8)'B'
386 && data[11] == (U8)'P')
387 RETVAL = "webp";
388 else if (data_len >= 16
389 && data[ 0] == 0x89
390 && data[ 1] == (U8)'P'
391 && data[ 2] == (U8)'N'
392 && data[ 3] == (U8)'G'
393 && data[ 4] == 0x0d
394 && data[ 5] == 0x0a
395 && data[ 6] == 0x1a
396 && data[ 7] == 0x0a)
397 RETVAL = "png";
398 else
399 RETVAL = "other";
400}
401 OUTPUT:
402 RETVAL
403
296GdkPixbuf_noinc * 404GdkPixbuf_noinc *
297load_jpeg (SV *path, int thumbnail=0) 405decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
406 CODE:
407{
408#if WEBP
409 STRLEN data_size;
410 int alpha;
411 WebPData data;
412 WebPDemuxer *demux;
413 WebPIterator iter;
414 WebPDecoderConfig config;
415 int inw, inh;
416
417 data.bytes = (uint8_t *)SvPVbyte (image_data, data_size);
418 data.size = data_size;
419
420 perlinterp_release ();
421
422 RETVAL = 0;
423
424 if (!(demux = WebPDemux (&data)))
425 goto err_demux;
426
427 if (!WebPDemuxGetFrame (demux, 1, &iter))
428 goto err_iter;
429
430 if (!WebPInitDecoderConfig (&config))
431 goto err_iter;
432
433 config.options.use_threads = 1;
434
435 if (WebPGetFeatures (iter.fragment.bytes, iter.fragment.size, &config.input) != VP8_STATUS_OK)
436 goto err_iter;
437
438 inw = config.input.width;
439 inh = config.input.height;
440
441 if (thumbnail)
442 {
443 if (inw * ih > inh * iw)
444 ih = (iw * inh + inw - 1) / inw;
445 else
446 iw = (ih * inw + inh - 1) / inh;
447
448 config.options.bypass_filtering = 1;
449 config.options.no_fancy_upsampling = 1;
450
451 config.options.use_scaling = 1;
452 config.options.scaled_width = iw;
453 config.options.scaled_height = ih;
454 }
455 else
456 {
457 iw = inw;
458 ih = inh;
459 }
460
461 alpha = !!config.input.has_alpha;
462
463 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, alpha, 8, iw, ih);
464 if (!RETVAL)
465 goto err_iter;
466
467 config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB;
468 config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL);
469 config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL);
470 config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL);
471 config.output.is_external_memory = 1;
472
473 if (WebPDecode (iter.fragment.bytes, iter.fragment.size, &config) != VP8_STATUS_OK)
474 {
475 g_object_unref (RETVAL);
476 RETVAL = 0;
477 goto err_iter;
478 }
479
480 err_iter:
481 WebPDemuxReleaseIterator (&iter);
482 err_demux:
483
484 perlinterp_acquire ();
485#else
486 croak ("load_webp: webp not enabled at compile time");
487#endif
488}
489 OUTPUT:
490 RETVAL
491
492GdkPixbuf_noinc *
493decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
298 CODE: 494 CODE:
299{ 495{
300 struct jpeg_decompress_struct cinfo; 496 struct jpeg_decompress_struct cinfo;
301 struct jpg_err_mgr jerr; 497 struct jpg_err_mgr jerr;
302 guchar *data;
303 int rs; 498 int rs;
304 FILE *fp;
305 volatile GdkPixbuf *pb = 0; 499 volatile GdkPixbuf *pb = 0;
500 STRLEN data_len;
501 guchar *data = SvPVbyte (image_data, data_len);
306 502
307 RETVAL = 0; 503 RETVAL = 0;
308 504
309 fp = fopen (SvPVbyte_nolen (path), "rb"); 505 perlinterp_release ();
310
311 if (!fp)
312 XSRETURN_UNDEF;
313 506
314 cinfo.err = jpeg_std_error (&jerr.err); 507 cinfo.err = jpeg_std_error (&jerr.err);
315 508
316 jerr.err.error_exit = cv_error_exit; 509 jerr.err.error_exit = cv_error_exit;
317 jerr.err.output_message = cv_error_output; 510 jerr.err.output_message = cv_error_output;
318 511
319 if ((rs = setjmp (jerr.setjmp_buffer))) 512 if ((rs = setjmp (jerr.setjmp_buffer)))
320 { 513 {
321 fclose (fp);
322 jpeg_destroy_decompress (&cinfo); 514 jpeg_destroy_decompress (&cinfo);
323 515
324 if (pb) 516 if (pb)
325 g_object_unref ((gpointer)pb); 517 g_object_unref ((gpointer)pb);
326 518
519 perlinterp_acquire ();
327 XSRETURN_UNDEF; 520 XSRETURN_UNDEF;
328 } 521 }
329 522
330 jpeg_create_decompress (&cinfo); 523 jpeg_create_decompress (&cinfo);
524 cv_jpeg_mem_src (&cinfo, data, data_len);
331 525
332 jpeg_stdio_src (&cinfo, fp);
333 jpeg_read_header (&cinfo, TRUE); 526 jpeg_read_header (&cinfo, TRUE);
334 527
335 cinfo.dct_method = JDCT_DEFAULT; 528 cinfo.dct_method = JDCT_DEFAULT;
336 cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ 529 cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */
337 cinfo.do_block_smoothing = FALSE; 530 cinfo.do_block_smoothing = FALSE;
… …
347 { 540 {
348 cinfo.dct_method = JDCT_FASTEST; 541 cinfo.dct_method = JDCT_FASTEST;
349 cinfo.do_fancy_upsampling = FALSE; 542 cinfo.do_fancy_upsampling = FALSE;
350 543
351 while (cinfo.scale_denom < 8 544 while (cinfo.scale_denom < 8
352 && cinfo.output_width >= IW*4 545 && cinfo.output_width >= iw*4
353 && cinfo.output_height >= IH*4) 546 && cinfo.output_height >= ih*4)
354 { 547 {
355 cinfo.scale_denom <<= 1; 548 cinfo.scale_denom <<= 1;
356 jpeg_calc_output_dimensions (&cinfo); 549 jpeg_calc_output_dimensions (&cinfo);
357 } 550 }
358 } 551 }
359 552
553 if (cinfo.output_components != 3)
554 longjmp (jerr.setjmp_buffer, 3);
555
556 if (cinfo.jpeg_color_space == JCS_YCCK || cinfo.jpeg_color_space == JCS_CMYK)
557 {
558 cinfo.out_color_space = JCS_CMYK;
559 cinfo.output_components = 4;
560 }
561
360 pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height); 562 pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, cinfo.output_components == 4, 8, cinfo.output_width, cinfo.output_height);
361 if (!RETVAL) 563 if (!RETVAL)
362 longjmp (jerr.setjmp_buffer, 2); 564 longjmp (jerr.setjmp_buffer, 2);
363 565
364 data = gdk_pixbuf_get_pixels (RETVAL); 566 data = gdk_pixbuf_get_pixels (RETVAL);
365 rs = gdk_pixbuf_get_rowstride (RETVAL); 567 rs = gdk_pixbuf_get_rowstride (RETVAL);
366
367 if (cinfo.output_components != 3)
368 longjmp (jerr.setjmp_buffer, 3);
369 568
370 jpeg_start_decompress (&cinfo); 569 jpeg_start_decompress (&cinfo);
371 570
372 while (cinfo.output_scanline < cinfo.output_height) 571 while (cinfo.output_scanline < cinfo.output_height)
373 { 572 {
… …
380 rp [3] = (guchar *)rp [2] + rs; 579 rp [3] = (guchar *)rp [2] + rs;
381 580
382 jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); 581 jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4);
383 } 582 }
384 583
584 if (cinfo.out_color_space == JCS_CMYK)
585 {
586 guchar *end = data + cinfo.output_height * rs;
587
588 while (data < end)
589 {
590 U32 c = data [0];
591 U32 m = data [1];
592 U32 y = data [2];
593 U32 k = data [3];
594
595 if (0)
596 if (cinfo.Adobe_transform == 2)
597 {
598 c ^= 0xff;
599 m ^= 0xff;
600 y ^= 0xff;
601 k ^= 0xff;
602 }
603
604 data [0] = (c * k + 0x80) / 0xff;
605 data [1] = (m * k + 0x80) / 0xff;
606 data [2] = (y * k + 0x80) / 0xff;
607 data [3] = 0xff;
608
609 data += 4;
610 }
611 }
612
385 jpeg_finish_decompress (&cinfo); 613 jpeg_finish_decompress (&cinfo);
386 fclose (fp);
387 jpeg_destroy_decompress (&cinfo); 614 jpeg_destroy_decompress (&cinfo);
615 perlinterp_acquire ();
388} 616}
389 OUTPUT: 617 OUTPUT:
390 RETVAL 618 RETVAL
391 619
392void 620void
393compare (GdkPixbuf *a, GdkPixbuf *b) 621compare (GdkPixbuf *a, GdkPixbuf *b)
394 PPCODE: 622 PPCODE:
623 perlinterp_release ();
395{ 624{
396 int w = gdk_pixbuf_get_width (a); 625 int w = gdk_pixbuf_get_width (a);
397 int h = gdk_pixbuf_get_height (a); 626 int h = gdk_pixbuf_get_height (a);
627
398 int sa = gdk_pixbuf_get_rowstride (a); 628 int sa = gdk_pixbuf_get_rowstride (a);
399 int sb = gdk_pixbuf_get_rowstride (b); 629 int sb = gdk_pixbuf_get_rowstride (b);
400 630
401 guchar *pa = gdk_pixbuf_get_pixels (a); 631 guchar *pa = gdk_pixbuf_get_pixels (a);
402 guchar *pb = gdk_pixbuf_get_pixels (b); 632 guchar *pb = gdk_pixbuf_get_pixels (b);
… …
426 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); 656 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d));
427 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); 657 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d));
428 } 658 }
429 } 659 }
430 660
661 perlinterp_acquire ();
662
431 EXTEND (SP, 2); 663 EXTEND (SP, 2);
432 PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); 664 PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.)))));
433 PUSHs (sv_2mortal (newSVnv (peak / 255.))); 665 PUSHs (sv_2mortal (newSVnv (peak / 255.)));
434} 666}
435 667
436############################################################################# 668#############################################################################
437 669
438MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer 670MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer
439 671
672# currently only works for filenames (octet strings)
673
440SV * 674SV *
441foldcase (SV *pathsv) 675foldcase (SV *pathsv)
442 PROTOTYPE: $ 676 PROTOTYPE: $
443 CODE: 677 CODE:
444{ 678{
445 STRLEN plen; 679 STRLEN plen;
446 U8 *path = (U8 *)SvPVutf8 (pathsv, plen); 680 U8 *path = (U8 *)SvPV (pathsv, plen);
447 U8 *pend = path + plen; 681 U8 *pend = path + plen;
448 U8 dst [plen * 6 * 3], *dstp = dst; 682 U8 dst [plen * 6 * 3], *dstp = dst;
449 683
450 while (path < pend) 684 while (path < pend)
451 { 685 {
452 U8 ch = *path; 686 U8 ch = *path;
453 687
454 if (ch >= 'a' && ch <= 'z') 688 if (ch >= 'a' && ch <= 'z')
455 *dstp++ = *path++; 689 *dstp++ = *path++;
690 else if (ch >= 'A' && ch <= 'Z')
691 *dstp++ = *path++ + ('a' - 'A');
456 else if (ch >= '0' && ch <= '9') 692 else if (ch >= '0' && ch <= '9')
457 { 693 {
458 STRLEN el, nl = 0; 694 STRLEN el, nl = 0;
459 while (*path >= '0' && *path <= '9' && path < pend) 695 while (*path >= '0' && *path <= '9' && path < pend)
460 path++, nl++; 696 path++, nl++;
… …
463 *dstp++ = '0'; 699 *dstp++ = '0';
464 700
465 memcpy (dstp, path - nl, nl); 701 memcpy (dstp, path - nl, nl);
466 dstp += nl; 702 dstp += nl;
467 } 703 }
704 else
705 *dstp++ = *path++;
706#if 0
468 else 707 else
469 { 708 {
470 STRLEN cl; 709 STRLEN cl;
471 to_utf8_fold (path, dstp, &cl); 710 to_utf8_fold (path, dstp, &cl);
472 dstp += cl; 711 dstp += cl;
473 path += is_utf8_char (path); 712 path += is_utf8_char (path);
474 } 713 }
714#endif
475 } 715 }
476 716
477 RETVAL = newSVpvn ((const char *)dst, dstp - dst); 717 RETVAL = newSVpvn ((const char *)dst, dstp - dst);
478} 718}
479 OUTPUT: 719 OUTPUT:
… …
648{ 888{
649 int i; 889 int i;
650 AV *av, *result; 890 AV *av, *result;
651 891
652 if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) 892 if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV)
653 croak ("Not an array ref as first argument to make_histogram"); 893 croak ("Not an array ref as first argument to extract_features");
654 894
655 av = (AV *) SvRV (ar); 895 av = (AV *) SvRV (ar);
656 result = newAV (); 896 result = newAV ();
657 897
658 for (i = 0; i <= av_len (av); ++i) 898 for (i = 0; i <= av_len (av); ++i)
… …
711 feature_finish_pass_2 (&f_v); 951 feature_finish_pass_2 (&f_v);
712 } 952 }
713 953
714 hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.; 954 hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.;
715 hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ; 955 hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ;
716 hist [6] = f_v.v1 ; hist [7] = f_v.v2 ; hist [8] = f_v.v3 ; 956 hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5;
717 957
718 av_push (result, histsv); 958 av_push (result, histsv);
719 } 959 }
720 960
721 RETVAL = newRV_noinc ((SV *)result); 961 RETVAL = newRV_noinc ((SV *)result);
722} 962}
723 OUTPUT: 963 OUTPUT:
724 RETVAL 964 RETVAL
725 965
726SV *
727make_histograms (SV *ar)
728 CODE:
729{
730 int i;
731 AV *av, *result;
732
733 if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV)
734 croak ("Not an array ref as first argument to make_histogram");
735
736 av = (AV *) SvRV (ar);
737 result = newAV ();
738
739 for (i = 0; i <= av_len (av); ++i)
740 {
741 const int HISTSIZE = 64;
742
743 int j;
744 SV *sv = *av_fetch (av, i, 1);
745 STRLEN len;
746 char *buf = SvPVbyte (sv, len);
747
748 int tmphist[HISTSIZE];
749 float *hist;
750
751 SV *histsv = newSV (HISTSIZE * sizeof (float) + 1);
752 SvPOK_on (histsv);
753 SvCUR_set (histsv, HISTSIZE * sizeof (float));
754 hist = (float *)SvPVX (histsv);
755
756 Zero (tmphist, sizeof (tmphist), char);
757
758 for (j = len; j--; )
759 {
760 unsigned int idx
761 = ((*buf & 0xc0) >> 2)
762 | ((*buf & 0x18) >> 1)
763 | (*buf & 0x03);
764
765 ++tmphist[idx];
766 ++buf;
767 }
768
769 for (j = 0; j < HISTSIZE; ++j)
770 hist[j] = (float)tmphist[j] / (len + 1e-30);
771
772 av_push (result, histsv);
773 }
774
775 RETVAL = newRV_noinc ((SV *)result);
776}
777 OUTPUT:
778 RETVAL
779
780

Diff Legend

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