| … | |
… | |
| 225 | { |
225 | { |
| 226 | cinfo.dct_method = JDCT_FASTEST; |
226 | cinfo.dct_method = JDCT_FASTEST; |
| 227 | cinfo.do_fancy_upsampling = FALSE; |
227 | cinfo.do_fancy_upsampling = FALSE; |
| 228 | |
228 | |
| 229 | while (cinfo.scale_denom < 8 |
229 | while (cinfo.scale_denom < 8 |
| 230 | && (cinfo.output_width >> 1) >= IW |
230 | && cinfo.output_width >= IW*4 |
| 231 | && (cinfo.output_height >> 1) >= IH) |
231 | && cinfo.output_height >= IH*4) |
| 232 | { |
232 | { |
| 233 | cinfo.scale_denom <<= 1; |
233 | cinfo.scale_denom <<= 1; |
| 234 | jpeg_calc_output_dimensions (&cinfo); |
234 | jpeg_calc_output_dimensions (&cinfo); |
| 235 | } |
235 | } |
| 236 | } |
236 | } |
| … | |
… | |
| 281 | U8 *pend = path + plen; |
281 | U8 *pend = path + plen; |
| 282 | U8 dst [plen * 6 * 3], *dstp = dst; |
282 | U8 dst [plen * 6 * 3], *dstp = dst; |
| 283 | |
283 | |
| 284 | while (path < pend) |
284 | while (path < pend) |
| 285 | { |
285 | { |
|
|
286 | U8 ch = *path; |
|
|
287 | |
| 286 | if (*path >= '0' && *path <= '9') |
288 | if (ch >= 'a' && ch <= 'z') |
|
|
289 | *dstp++ = *path++; |
|
|
290 | else if (ch >= '0' && ch <= '9') |
| 287 | { |
291 | { |
| 288 | STRLEN el, nl = 0; |
292 | STRLEN el, nl = 0; |
| 289 | while (*path >= '0' && *path <= '9') |
293 | while (*path >= '0' && *path <= '9' && path < pend) |
| 290 | path++, nl++; |
294 | path++, nl++; |
| 291 | |
295 | |
| 292 | for (el = nl; el < 6; el++) |
296 | for (el = nl; el < 6; el++) |
| 293 | *dstp++ = '0'; |
297 | *dstp++ = '0'; |
| 294 | |
298 | |
| … | |
… | |
| 309 | OUTPUT: |
313 | OUTPUT: |
| 310 | RETVAL |
314 | RETVAL |
| 311 | |
315 | |
| 312 | GdkPixbuf_noinc * |
316 | GdkPixbuf_noinc * |
| 313 | p7_to_pb (int w, int h, guchar *src) |
317 | p7_to_pb (int w, int h, guchar *src) |
|
|
318 | PROTOTYPE: @ |
| 314 | CODE: |
319 | CODE: |
| 315 | { |
320 | { |
| 316 | int x, y; |
321 | int x, y; |
| 317 | guchar *dst, *d; |
322 | guchar *dst, *d; |
| 318 | int dstr; |
323 | int dstr; |
| … | |
… | |
| 390 | } |
395 | } |
| 391 | } |
396 | } |
| 392 | OUTPUT: |
397 | OUTPUT: |
| 393 | RETVAL |
398 | RETVAL |
| 394 | |
399 | |
| 395 | SV * |
|
|
| 396 | make_histogram (SV *ar) |
|
|
| 397 | CODE: |
|
|
| 398 | { |
|
|
| 399 | int i; |
|
|
| 400 | AV *av, *result; |
|
|
| 401 | |
|
|
| 402 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
|
|
| 403 | croak ("Not an array ref as first argument to make_histogram"); |
|
|
| 404 | |
|
|
| 405 | av = (AV *) SvRV (ar); |
|
|
| 406 | result = newAV (); |
|
|
| 407 | |
|
|
| 408 | for (i = 0; i <= av_len (av); ++i) |
|
|
| 409 | { |
|
|
| 410 | const int HISTSIZE = 64; |
|
|
| 411 | |
|
|
| 412 | int j; |
|
|
| 413 | SV *sv = *av_fetch (av, i, 1); |
|
|
| 414 | STRLEN len; |
|
|
| 415 | char *buf = SvPVbyte (sv, len); |
|
|
| 416 | |
|
|
| 417 | int tmphist[HISTSIZE]; |
|
|
| 418 | float *hist; |
|
|
| 419 | |
|
|
| 420 | SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); |
|
|
| 421 | SvPOK_on (histsv); |
|
|
| 422 | SvCUR_set (histsv, HISTSIZE * sizeof (float)); |
|
|
| 423 | hist = (float *)SvPVX (histsv); |
|
|
| 424 | |
|
|
| 425 | Zero (tmphist, sizeof (tmphist), char); |
|
|
| 426 | |
|
|
| 427 | for (j = len; j--; ) |
|
|
| 428 | { |
|
|
| 429 | unsigned int idx |
|
|
| 430 | = ((*buf & 0xc0) >> 2) |
|
|
| 431 | | ((*buf & 0x18) >> 1) |
|
|
| 432 | | (*buf & 0x03); |
|
|
| 433 | |
|
|
| 434 | ++tmphist[idx]; |
|
|
| 435 | ++buf; |
|
|
| 436 | } |
|
|
| 437 | |
|
|
| 438 | for (j = 0; j < HISTSIZE; ++j) |
|
|
| 439 | hist[j] = (float)tmphist[j] / (len + 1e-30); |
|
|
| 440 | |
|
|
| 441 | av_push (result, histsv); |
|
|
| 442 | } |
|
|
| 443 | |
|
|
| 444 | RETVAL = newRV_noinc ((SV *)result); |
|
|
| 445 | } |
|
|
| 446 | OUTPUT: |
|
|
| 447 | RETVAL |
|
|
| 448 | |
|
|
| 449 | ############################################################################# |
400 | ############################################################################# |
| 450 | |
401 | |
| 451 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
402 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
| 452 | |
403 | |
| 453 | void |
404 | void |
| … | |
… | |
| 576 | } |
527 | } |
| 577 | } |
528 | } |
| 578 | OUTPUT: |
529 | OUTPUT: |
| 579 | RETVAL |
530 | RETVAL |
| 580 | |
531 | |
|
|
532 | ############################################################################# |
| 581 | |
533 | |
|
|
534 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
| 582 | |
535 | |
|
|
536 | SV * |
|
|
537 | make_histograms (SV *ar) |
|
|
538 | CODE: |
|
|
539 | { |
|
|
540 | int i; |
|
|
541 | AV *av, *result; |
|
|
542 | |
|
|
543 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
|
|
544 | croak ("Not an array ref as first argument to make_histogram"); |
|
|
545 | |
|
|
546 | av = (AV *) SvRV (ar); |
|
|
547 | result = newAV (); |
|
|
548 | |
|
|
549 | for (i = 0; i <= av_len (av); ++i) |
|
|
550 | { |
|
|
551 | const int HISTSIZE = 64; |
|
|
552 | |
|
|
553 | int j; |
|
|
554 | SV *sv = *av_fetch (av, i, 1); |
|
|
555 | STRLEN len; |
|
|
556 | char *buf = SvPVbyte (sv, len); |
|
|
557 | |
|
|
558 | int tmphist[HISTSIZE]; |
|
|
559 | float *hist; |
|
|
560 | |
|
|
561 | SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); |
|
|
562 | SvPOK_on (histsv); |
|
|
563 | SvCUR_set (histsv, HISTSIZE * sizeof (float)); |
|
|
564 | hist = (float *)SvPVX (histsv); |
|
|
565 | |
|
|
566 | Zero (tmphist, sizeof (tmphist), char); |
|
|
567 | |
|
|
568 | for (j = len; j--; ) |
|
|
569 | { |
|
|
570 | unsigned int idx |
|
|
571 | = ((*buf & 0xc0) >> 2) |
|
|
572 | | ((*buf & 0x18) >> 1) |
|
|
573 | | (*buf & 0x03); |
|
|
574 | |
|
|
575 | ++tmphist[idx]; |
|
|
576 | ++buf; |
|
|
577 | } |
|
|
578 | |
|
|
579 | for (j = 0; j < HISTSIZE; ++j) |
|
|
580 | hist[j] = (float)tmphist[j] / (len + 1e-30); |
|
|
581 | |
|
|
582 | av_push (result, histsv); |
|
|
583 | } |
|
|
584 | |
|
|
585 | RETVAL = newRV_noinc ((SV *)result); |
|
|
586 | } |
|
|
587 | OUTPUT: |
|
|
588 | RETVAL |
|
|
589 | |
|
|
590 | |
