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Comparing CV/CV.xs (file contents):
Revision 1.51 by root, Sat Dec 23 04:11:49 2017 UTC vs.
Revision 1.66 by root, Tue Mar 21 00:06:49 2023 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>
14#include <gdk/gdkx.h> 16#include <gdk/gdkx.h>
15#include <gdk-pixbuf/gdk-pixbuf.h> 17#include <gdk-pixbuf/gdk-pixbuf.h>
16 18
… …
18#include <gtk2perl.h> 20#include <gtk2perl.h>
19 21
20#include <assert.h> 22#include <assert.h>
21 23
22#if WEBP 24#if WEBP
25#include <webp/demux.h>
23#include <webp/decode.h> 26#include <webp/decode.h>
24#endif 27#endif
25 28
29#if JXL
30#include <jxl/decode.h>
31#include "jxl/thread_parallel_runner.h"
32#endif
33
26#include "perlmulticore.h" 34#include "perlmulticore.h"
27 35
28#define IW 80 /* MUST match Schnauzer.pm! */ 36#define IW 80 /* MUST match Schnauzer.pm! */
29#define IH 60 /* MUST match Schnauzer.pm! */ 37#define IH 60 /* MUST match Schnauzer.pm! */
30
31#define RAND (seed = (seed + 7141) * 54773 % 134456)
32 38
33#define LINELENGTH 240 39#define LINELENGTH 240
34 40
35#define ELLIPSIS "\xe2\x80\xa6" 41#define ELLIPSIS "\xe2\x80\xa6"
36 42
… …
198 204
199 PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); 205 PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);
200} 206}
201 207
202///////////////////////////////////////////////////////////////////////////// 208/////////////////////////////////////////////////////////////////////////////
209// memory source for libjpeg
210
211static void cv_ms_init (j_decompress_ptr cinfo)
212{
213}
214
215static void cv_ms_term (j_decompress_ptr cinfo)
216{
217}
218
219static boolean cv_ms_fill (j_decompress_ptr cinfo)
220{
221 // unexpected EOF, warn and generate fake EOI marker
222
223 WARNMS (cinfo, JWRN_JPEG_EOF);
224
225 struct jpeg_source_mgr *src = (struct jpeg_source_mgr *)cinfo->src;
226
227 static const JOCTET eoi[] = { 0xFF, JPEG_EOI };
228
229 src->next_input_byte = eoi;
230 src->bytes_in_buffer = sizeof (eoi);
231
232 return TRUE;
233}
234
235static void cv_ms_skip (j_decompress_ptr cinfo, long num_bytes)
236{
237 struct jpeg_source_mgr *src = (struct jpeg_source_mgr *)cinfo->src;
238
239 src->next_input_byte += num_bytes;
240 src->bytes_in_buffer -= num_bytes;
241}
242
243static void cv_jpeg_mem_src (j_decompress_ptr cinfo, void *buf, size_t buflen)
244{
245 struct jpeg_source_mgr *src;
246
247 if (!cinfo->src)
248 cinfo->src = (struct jpeg_source_mgr *)
249 (*cinfo->mem->alloc_small) (
250 (j_common_ptr) cinfo, JPOOL_PERMANENT, sizeof (struct jpeg_source_mgr)
251 );
252
253 src = (struct jpeg_source_mgr *)cinfo->src;
254 src->init_source = cv_ms_init;
255 src->fill_input_buffer = cv_ms_fill;
256 src->skip_input_data = cv_ms_skip;
257 src->resync_to_restart = jpeg_resync_to_restart;
258 src->term_source = cv_ms_term;
259 src->next_input_byte = (JOCTET *)buf;
260 src->bytes_in_buffer = buflen;
261}
262
263/////////////////////////////////////////////////////////////////////////////
264
265/* great, the jpeg-xl reference implementaton requires us to parse bmff files */
266
267struct bmff_box
268{
269 char type[4];
270 const uint8_t *ptr;
271 size_t size;
272};
273
274static int
275bmff_parse_box (struct bmff_box *box, const uint8_t **next_in, size_t *avail_in)
276{
277 if (*avail_in < 8)
278 return 0;
279
280 box->size = ((*next_in)[0] << 24)
281 | ((*next_in)[1] << 16)
282 | ((*next_in)[2] << 8)
283 | ((*next_in)[3] );
284
285 if (box->size < 8)
286 return 0;
287
288 if (*avail_in < box->size)
289 return 0;
290
291 memcpy (box->type, *next_in + 4, 4);
292 box->ptr = *next_in + 8;
293
294 *next_in += box->size;
295 *avail_in -= box->size;
296
297 box->size -= 8;
298
299 return 1;
300}
301
302/////////////////////////////////////////////////////////////////////////////
203 303
204MODULE = Gtk2::CV PACKAGE = Gtk2::CV 304MODULE = Gtk2::CV PACKAGE = Gtk2::CV
205 305
206PROTOTYPES: ENABLE 306PROTOTYPES: ENABLE
207 307
308void
309_exit (int code)
310
311# calculate the common prefix length of two strings
208# missing function in perl. really :) 312# missing function in perl. really :)
209int 313int
210common_prefix_length (a, b) 314common_prefix_length (a, b)
211 unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); 315 unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg);
212 unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); 316 unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg);
… …
232 CODE: 336 CODE:
233{ 337{
234 STRLEN len; 338 STRLEN len;
235 char *data = SvPVbyte (path_or_data, len); 339 char *data = SvPVbyte (path_or_data, len);
236 340
237 perlinterp_release ();
238
239 if (!magic_cookie[0]) 341 if (!magic_cookie[0])
240 { 342 {
241 magic_cookie[0] = magic_open (MAGIC_SYMLINK); 343 magic_cookie[0] = magic_open (MAGIC_SYMLINK);
242 magic_cookie[1] = magic_open (MAGIC_SYMLINK | MAGIC_MIME); 344 magic_cookie[1] = magic_open (MAGIC_SYMLINK | MAGIC_MIME_TYPE);
345 magic_load (magic_cookie[0], 0);
346 magic_load (magic_cookie[1], 0);
243 } 347 }
348
349 perlinterp_release ();
244 350
245 RETVAL = ix & 2 351 RETVAL = ix & 2
246 ? magic_buffer (magic_cookie[ix], data, len) 352 ? magic_buffer (magic_cookie[ix & 1], data, len)
247 : magic_file (magic_cookie[ix], data); 353 : magic_file (magic_cookie[ix & 1], data);
248 354
249 perlinterp_acquire (); 355 perlinterp_acquire ();
250} 356}
251 OUTPUT: 357 OUTPUT:
252 RETVAL 358 RETVAL
… …
308 : angle); 414 : angle);
309 perlinterp_acquire (); 415 perlinterp_acquire ();
310 OUTPUT: 416 OUTPUT:
311 RETVAL 417 RETVAL
312 418
419const char *
420filetype (SV *image_data)
421 CODE:
422{
423 STRLEN data_len;
424 U8 *data = SvPVbyte (image_data, data_len);
425 static const unsigned char jxl_header[] = {
426 0, 0, 0, 0x0c, 0x4a, 0x58, 0x4c, 0x20, 0x0d, 0xa, 0x87, 0x0a
427 };
428
429 if (data_len >= 20
430 && data[0] == 0xff
431 && data[1] == 0xd8
432 && data[2] == 0xff)
433 RETVAL = "image/jpeg";
434 else if (data_len >= 12
435 && data[ 0] == (U8)'R'
436 && data[ 1] == (U8)'I'
437 && data[ 2] == (U8)'F'
438 && data[ 3] == (U8)'F'
439 && data[ 8] == (U8)'W'
440 && data[ 9] == (U8)'E'
441 && data[10] == (U8)'B'
442 && data[11] == (U8)'P')
443 RETVAL = "image/webp";
444 else if (data_len >= 16
445 && data[ 0] == 0x89
446 && data[ 1] == (U8)'P'
447 && data[ 2] == (U8)'N'
448 && data[ 3] == (U8)'G'
449 && data[ 4] == 0x0d
450 && data[ 5] == 0x0a
451 && data[ 6] == 0x1a
452 && data[ 7] == 0x0a)
453 RETVAL = "image/png";
454 else if (data_len >= sizeof (jxl_header) && memcmp (data, jxl_header, sizeof (jxl_header)) == 0)
455 RETVAL = "image/jxl"; // todo: might want to use JxlSignatureCheck
456 else if (data_len >= 2
457 && data[0] == 0xff
458 && data[1] == 0x0a)
459 RETVAL = "image/jxl";
460 else if (data_len >= 13
461 && data[0] == 'G'
462 && data[1] == 'I'
463 && data[2] == 'F'
464 && data[3] == '8'
465 //&& (data[4] == '7' || data[4] == '9')
466 && data[5] == 'a')
467 {
468 RETVAL = "image/gif";
469
470 // now see if its animated - we require the netscape application header for this
471 int ofs = 13;
472
473 if (data[10] & 0x80)
474 ofs += (1 << ((data[10] & 7) + 1)) * 3;
475
476 if (data_len >= ofs + 2 + 1 + 11)
477 {
478
479 // skip a graphic control extension block. we assume
480 // there is at most one such block - while the NAB
481 // has to come firstz, some files do not obey this
482 if (data[ofs] == 0x21 && data[ofs + 1] == 0xf9)
483 ofs += 3 + data[ofs + 2] + 1;
484
485 if (data_len >= ofs + 2 + 1 + 11)
486 if (!memcmp (data + ofs, "\x21\xff\x0bNETSCAPE2.0", sizeof ("\x21\xff\x0bNETSCAPE2.0") - 1))
487 RETVAL = "video/gif";
488 }
489 }
490
491 else
492 XSRETURN_UNDEF;
493}
494 OUTPUT:
495 RETVAL
496
313GdkPixbuf_noinc * 497GdkPixbuf_noinc *
314decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) 498decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
315 CODE: 499 CODE:
316{ 500{
317#if WEBP 501#if WEBP
318 guchar *data;
319 STRLEN data_size; 502 STRLEN data_size;
320 int alpha; 503 int alpha;
504 WebPData data;
505 WebPDemuxer *demux;
506 WebPIterator iter;
321 WebPDecoderConfig config; 507 WebPDecoderConfig config;
322 int inw, inh; 508 int inw, inh;
323 509
324 data = SvPVbyte (image_data, data_size); 510 data.bytes = (uint8_t *)SvPVbyte (image_data, data_size);
511 data.size = data_size;
325 512
326 perlinterp_release (); 513 perlinterp_release ();
327 514
328 RETVAL = 0; 515 RETVAL = 0;
329 516
517 if (!(demux = WebPDemux (&data)))
518 goto err_demux;
519
520 if (!WebPDemuxGetFrame (demux, 1, &iter))
521 goto err_iter;
522
330 if (!WebPInitDecoderConfig (&config)) 523 if (!WebPInitDecoderConfig (&config))
331 goto err; 524 goto err_iter;
332 525
333 config.options.use_threads = 1; 526 config.options.use_threads = 1;
334 527
335 if (WebPGetFeatures (data, data_size, &config.input) != VP8_STATUS_OK) 528 if (WebPGetFeatures (iter.fragment.bytes, iter.fragment.size, &config.input) != VP8_STATUS_OK)
336 goto err; 529 goto err_iter;
337 530
338 inw = config.input.width; 531 inw = config.input.width;
339 inh = config.input.height; 532 inh = config.input.height;
340 533
341 if (thumbnail) 534 if (thumbnail)
… …
356 { 549 {
357 iw = inw; 550 iw = inw;
358 ih = inh; 551 ih = inh;
359 } 552 }
360 553
361 alpha = config.input.has_alpha; 554 alpha = !!config.input.has_alpha;
362 555
363 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!alpha, 8, iw, ih); 556 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, alpha, 8, iw, ih);
364 if (!RETVAL) 557 if (!RETVAL)
365 goto err; 558 goto err_iter;
366 559
367 config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB; 560 config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB;
368 config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL); 561 config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL);
369 config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL); 562 config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL);
370 config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL); 563 config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL);
371 config.output.is_external_memory = 1; 564 config.output.is_external_memory = 1;
372 565
373 if (WebPDecode (data, data_size, &config) != VP8_STATUS_OK) 566 if (WebPDecode (iter.fragment.bytes, iter.fragment.size, &config) != VP8_STATUS_OK)
374 { 567 {
375 g_object_unref (RETVAL); 568 g_object_unref (RETVAL);
376 RETVAL = 0; 569 RETVAL = 0;
377 goto err; 570 goto err_iter;
378 } 571 }
379 572
380 err: 573 err_iter:
574 WebPDemuxReleaseIterator (&iter);
575 err_demux:
576 WebPDemuxDelete (demux);
577
381 perlinterp_acquire (); 578 perlinterp_acquire ();
382#else 579#else
383 croak ("load_webp: webp not enabled at compile time"); 580 croak ("load_webp: webp not enabled at compile time");
384#endif 581#endif
385} 582}
386 OUTPUT: 583 OUTPUT:
387 RETVAL 584 RETVAL
388 585
389GdkPixbuf_noinc * 586GdkPixbuf_noinc *
587decode_jxl (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
588 CODE:
589{
590#if JXL
591 JxlDecoder *dec;
592 JxlBasicInfo info;
593 const uint8_t *next_in = (uint8_t *)SvPVbyte_nolen (image_data);
594 size_t avail_in = SvCUR (image_data);
595 const char *error = 0;
596 JxlDecoderStatus status;
597 static void *runner_cache;
598 void *runner = 0;
599
600 RETVAL = 0;
601
602 if (runner_cache)
603 runner = runner_cache;
604 else
605 runner = JxlThreadParallelRunnerCreate (0, JxlThreadParallelRunnerDefaultNumWorkerThreads ());
606
607 runner_cache = 0;
608
609 perlinterp_release ();
610
611 dec = JxlDecoderCreate (0);
612
613 error = "JxlDecoderCreate failed";
614 if (!dec)
615 goto done;
616
617 status = JxlDecoderSetParallelRunner (dec, JxlThreadParallelRunner, runner);
618 error = "JxlDecoderSetParallelRunner failed";
619 if (status != JXL_DEC_SUCCESS)
620 goto done;
621
622 error = "JxlDecoderSubscribeEvents failed";
623 status = JxlDecoderSubscribeEvents (dec, JXL_DEC_BASIC_INFO | JXL_DEC_FULL_IMAGE);
624 if (status != JXL_DEC_SUCCESS)
625 goto done;
626
627 status = JxlDecoderSetInput (dec, next_in, avail_in);
628 error = "JxlDecoderSetInput failed";
629 if (status != JXL_DEC_SUCCESS)
630 goto done;
631
632 for (;;)
633 {
634 status = JxlDecoderProcessInput (dec);
635
636 switch (status)
637 {
638 case JXL_DEC_FULL_IMAGE:
639 error = 0;
640 goto done;
641
642 case JXL_DEC_ERROR:
643 error = "JxlDecoderProcessInput failed";
644 goto done;
645
646 case JXL_DEC_NEED_MORE_INPUT:
647 error = "incomplete file";
648 goto done;
649
650 case JXL_DEC_SUCCESS:
651 error = "incomplete decode";
652 goto done;
653
654 case JXL_DEC_BASIC_INFO:
655 {
656 status = JxlDecoderGetBasicInfo (dec, &info);
657 error = "JxlDecoderGetBasicInfo failed";
658 if (status != JXL_DEC_SUCCESS)
659 goto done;
660
661 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!info.alpha_bits, 8, info.xsize, info.ysize);
662 error = "unable to allocate pixbuf";
663 if (!RETVAL)
664 goto done;
665
666 JxlPixelFormat format = {
667 info.alpha_bits ? 4 : 3,
668 JXL_TYPE_UINT8,
669 JXL_NATIVE_ENDIAN,
670 gdk_pixbuf_get_rowstride (RETVAL)
671 };
672
673 // cannot use gdk_pixbuf_get_byte_length because that does
674 // not return the size of the buffer, but the size of the buffer without
675 // the last padding bytes. the internal buffer is rowstride * ysize,
676 // and this is what the jxl decoder needs. none of this is documented
677 // in either library, of course.
678
679 status = JxlDecoderSetImageOutBuffer (
680 dec,
681 &format,
682 gdk_pixbuf_get_pixels (RETVAL),
683 gdk_pixbuf_get_rowstride (RETVAL) * info.ysize
684 );
685 error = "JxlDecoderSetImageOutBuffer failed";
686 if (status != JXL_DEC_SUCCESS)
687 goto done;
688 }
689 break;
690
691 default:
692 error = "unexpected event";
693 goto done;
694 }
695 }
696
697 done:
698 if (dec)
699 JxlDecoderDestroy (dec);
700
701 perlinterp_acquire ();
702
703 if (runner_cache)
704 JxlThreadParallelRunnerDestroy (runner);
705
706 runner_cache = runner;
707
708 if (error)
709 {
710 if (RETVAL)
711 g_object_unref (RETVAL);
712
713 croak ("load_jxl: %s (status %d)", error, status);
714 }
715#else
716 croak ("load_jxl: jpeg-xl not enabled at compile time");
717#endif
718}
719 OUTPUT:
720 RETVAL
721
722GdkPixbuf_noinc *
390load_jpeg (SV *path, int thumbnail = 0, int iw = 0, int ih = 0) 723decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
391 CODE: 724 CODE:
392{ 725{
393 struct jpeg_decompress_struct cinfo; 726 struct jpeg_decompress_struct cinfo;
394 struct jpg_err_mgr jerr; 727 struct jpg_err_mgr jerr;
395 guchar *data;
396 int rs; 728 int rs;
397 FILE *fp;
398 volatile GdkPixbuf *pb = 0; 729 volatile GdkPixbuf *pb = 0;
730 STRLEN data_len;
731 guchar *data = SvPVbyte (image_data, data_len);
399 732
400 RETVAL = 0; 733 RETVAL = 0;
401
402 fp = fopen (SvPVbyte_nolen (path), "rb");
403
404 if (!fp)
405 XSRETURN_UNDEF;
406 734
407 perlinterp_release (); 735 perlinterp_release ();
408 736
409 cinfo.err = jpeg_std_error (&jerr.err); 737 cinfo.err = jpeg_std_error (&jerr.err);
410 738
411 jerr.err.error_exit = cv_error_exit; 739 jerr.err.error_exit = cv_error_exit;
412 jerr.err.output_message = cv_error_output; 740 jerr.err.output_message = cv_error_output;
413 741
414 if ((rs = setjmp (jerr.setjmp_buffer))) 742 if ((rs = setjmp (jerr.setjmp_buffer)))
415 { 743 {
416 fclose (fp);
417 jpeg_destroy_decompress (&cinfo); 744 jpeg_destroy_decompress (&cinfo);
418 745
419 if (pb) 746 if (pb)
420 g_object_unref ((gpointer)pb); 747 g_object_unref ((gpointer)pb);
421 748
422 perlinterp_acquire (); 749 perlinterp_acquire ();
423 XSRETURN_UNDEF; 750 XSRETURN_UNDEF;
424 } 751 }
425 752
753 if (!data_len)
754 longjmp (jerr.setjmp_buffer, 4);
755
426 jpeg_create_decompress (&cinfo); 756 jpeg_create_decompress (&cinfo);
757 cv_jpeg_mem_src (&cinfo, data, data_len);
427 758
428 jpeg_stdio_src (&cinfo, fp);
429 jpeg_read_header (&cinfo, TRUE); 759 jpeg_read_header (&cinfo, TRUE);
430 760
431 cinfo.dct_method = JDCT_DEFAULT; 761 cinfo.dct_method = JDCT_DEFAULT;
432 cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ 762 cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */
433 cinfo.do_block_smoothing = FALSE; 763 cinfo.do_block_smoothing = FALSE;
… …
512 data += 4; 842 data += 4;
513 } 843 }
514 } 844 }
515 845
516 jpeg_finish_decompress (&cinfo); 846 jpeg_finish_decompress (&cinfo);
517 fclose (fp);
518 jpeg_destroy_decompress (&cinfo); 847 jpeg_destroy_decompress (&cinfo);
519 perlinterp_acquire (); 848 perlinterp_acquire ();
520} 849}
521 OUTPUT: 850 OUTPUT:
522 RETVAL 851 RETVAL
… …
581 CODE: 910 CODE:
582{ 911{
583 STRLEN plen; 912 STRLEN plen;
584 U8 *path = (U8 *)SvPV (pathsv, plen); 913 U8 *path = (U8 *)SvPV (pathsv, plen);
585 U8 *pend = path + plen; 914 U8 *pend = path + plen;
586 U8 dst [plen * 6 * 3], *dstp = dst; 915 U8 dst [plen * 8 * 3], *dstp = dst;
587 916
588 while (path < pend) 917 while (path < pend)
589 { 918 {
590 U8 ch = *path; 919 U8 ch = *path;
591 920
… …
593 *dstp++ = *path++; 922 *dstp++ = *path++;
594 else if (ch >= 'A' && ch <= 'Z') 923 else if (ch >= 'A' && ch <= 'Z')
595 *dstp++ = *path++ + ('a' - 'A'); 924 *dstp++ = *path++ + ('a' - 'A');
596 else if (ch >= '0' && ch <= '9') 925 else if (ch >= '0' && ch <= '9')
597 { 926 {
927 /* version sort, up to 8 digits */
598 STRLEN el, nl = 0; 928 STRLEN el, nl = 0;
599 while (*path >= '0' && *path <= '9' && path < pend) 929 while (*path >= '0' && *path <= '9' && path < pend)
600 path++, nl++; 930 path++, nl++;
601 931
602 for (el = nl; el < 6; el++) 932 for (el = nl; el < 8; el++)
603 *dstp++ = '0'; 933 *dstp++ = '0';
604 934
605 memcpy (dstp, path - nl, nl); 935 memcpy (dstp, path - nl, nl);
606 dstp += nl; 936 dstp += nl;
607 } 937 }

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