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Comparing CV/CV.xs (file contents):
Revision 1.57 by root, Mon Jul 30 22:55:46 2018 UTC vs.
Revision 1.64 by root, Wed Dec 1 03:32:40 2021 UTC

… …
24#if WEBP 24#if WEBP
25#include <webp/demux.h> 25#include <webp/demux.h>
26#include <webp/decode.h> 26#include <webp/decode.h>
27#endif 27#endif
28 28
29#if JXL
30#include <jxl/decode.h>
31#include "jxl/thread_parallel_runner.h"
32#endif
33
29#include "perlmulticore.h" 34#include "perlmulticore.h"
30 35
31#define IW 80 /* MUST match Schnauzer.pm! */ 36#define IW 80 /* MUST match Schnauzer.pm! */
32#define IH 60 /* MUST match Schnauzer.pm! */ 37#define IH 60 /* MUST match Schnauzer.pm! */
33
34#define RAND (seed = (seed + 7141) * 54773 % 134456)
35 38
36#define LINELENGTH 240 39#define LINELENGTH 240
37 40
38#define ELLIPSIS "\xe2\x80\xa6" 41#define ELLIPSIS "\xe2\x80\xa6"
39 42
… …
257 src->bytes_in_buffer = buflen; 260 src->bytes_in_buffer = buflen;
258} 261}
259 262
260///////////////////////////////////////////////////////////////////////////// 263/////////////////////////////////////////////////////////////////////////////
261 264
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/////////////////////////////////////////////////////////////////////////////
303
262MODULE = Gtk2::CV PACKAGE = Gtk2::CV 304MODULE = Gtk2::CV PACKAGE = Gtk2::CV
263 305
264PROTOTYPES: ENABLE 306PROTOTYPES: ENABLE
265 307
266# calculate the common prefix length of two strings 308# calculate the common prefix length of two strings
… …
375filetype (SV *image_data) 417filetype (SV *image_data)
376 CODE: 418 CODE:
377{ 419{
378 STRLEN data_len; 420 STRLEN data_len;
379 U8 *data = SvPVbyte (image_data, data_len); 421 U8 *data = SvPVbyte (image_data, data_len);
422 static const unsigned char jxl_header[] = {
423 0, 0, 0, 0x0c, 0x4a, 0x58, 0x4c, 0x20, 0x0d, 0xa, 0x87, 0x0a
424 };
380 425
381 if (data_len >= 20 426 if (data_len >= 20
382 && data[0] == 0xff 427 && data[0] == 0xff
383 && data[1] == 0xd8 428 && data[1] == 0xd8
384 && data[2] == 0xff) 429 && data[2] == 0xff)
385 RETVAL = "jpg"; 430 RETVAL = "image/jpeg";
386 else if (data_len >= 12 431 else if (data_len >= 12
387 && data[ 0] == (U8)'R' 432 && data[ 0] == (U8)'R'
388 && data[ 1] == (U8)'I' 433 && data[ 1] == (U8)'I'
389 && data[ 2] == (U8)'F' 434 && data[ 2] == (U8)'F'
390 && data[ 3] == (U8)'F' 435 && data[ 3] == (U8)'F'
391 && data[ 8] == (U8)'W' 436 && data[ 8] == (U8)'W'
392 && data[ 9] == (U8)'E' 437 && data[ 9] == (U8)'E'
393 && data[10] == (U8)'B' 438 && data[10] == (U8)'B'
394 && data[11] == (U8)'P') 439 && data[11] == (U8)'P')
395 RETVAL = "webp"; 440 RETVAL = "image/webp";
396 else if (data_len >= 16 441 else if (data_len >= 16
397 && data[ 0] == 0x89 442 && data[ 0] == 0x89
398 && data[ 1] == (U8)'P' 443 && data[ 1] == (U8)'P'
399 && data[ 2] == (U8)'N' 444 && data[ 2] == (U8)'N'
400 && data[ 3] == (U8)'G' 445 && data[ 3] == (U8)'G'
401 && data[ 4] == 0x0d 446 && data[ 4] == 0x0d
402 && data[ 5] == 0x0a 447 && data[ 5] == 0x0a
403 && data[ 6] == 0x1a 448 && data[ 6] == 0x1a
404 && data[ 7] == 0x0a) 449 && data[ 7] == 0x0a)
405 RETVAL = "png"; 450 RETVAL = "image/png";
451 else if (data_len >= sizeof (jxl_header) && memcmp (data, jxl_header, sizeof (jxl_header)) == 0)
452 RETVAL = "image/jxl"; // todo: might want to use JxlSignatureCheck
453 else if (data_len >= 2
454 && data[0] == 0xff
455 && data[1] == 0x0a)
456 RETVAL = "image/jxl";
457 else if (data_len >= 13
458 && data[0] == 'G'
459 && data[1] == 'I'
460 && data[2] == 'F'
461 && data[3] == '8'
462 //&& (data[4] == '7' || data[4] == '9')
463 && data[5] == 'a')
464 {
465 RETVAL = "image/gif";
466
467 // now see if its animated - we require the netscape application header for this
468 int ofs = 13;
469
470 if (data[10] & 0x80)
471 ofs += (1 << ((data[10] & 7) + 1)) * 3;
472
473 if (data_len >= ofs + 2 + 1 + 11)
474 {
475
476 // skip a graphic control extension block. we assume
477 // there is at most one such block - while the NAB
478 // has to come firstz, some files do not obey this
479 if (data[ofs] == 0x21 && data[ofs + 1] == 0xf9)
480 ofs += 3 + data[ofs + 2] + 1;
481
482 if (data_len >= ofs + 2 + 1 + 11)
483 if (!memcmp (data + ofs, "\x21\xff\x0bNETSCAPE2.0", sizeof ("\x21\xff\x0bNETSCAPE2.0") - 1))
484 RETVAL = "video/gif";
485 }
486 }
487
406 else 488 else
407 RETVAL = "other"; 489 XSRETURN_UNDEF;
408} 490}
409 OUTPUT: 491 OUTPUT:
410 RETVAL 492 RETVAL
411 493
412GdkPixbuf_noinc * 494GdkPixbuf_noinc *
… …
497} 579}
498 OUTPUT: 580 OUTPUT:
499 RETVAL 581 RETVAL
500 582
501GdkPixbuf_noinc * 583GdkPixbuf_noinc *
584decode_jxl (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
585 CODE:
586{
587#if JXL
588 JxlDecoder *dec;
589 JxlBasicInfo info;
590 const uint8_t *next_in = (uint8_t *)SvPVbyte_nolen (image_data);
591 size_t avail_in = SvCUR (image_data);
592 const char *error = 0;
593 JxlDecoderStatus status;
594 void *runner = 0;
595
596 RETVAL = 0;
597
598 perlinterp_release ();
599
600 dec = JxlDecoderCreate (0);
601
602 error = "JxlDecoderCreate failed";
603 if (!dec)
604 goto done;
605
606 runner = JxlThreadParallelRunnerCreate (0, JxlThreadParallelRunnerDefaultNumWorkerThreads ());
607
608 status = JxlDecoderSetParallelRunner (dec, JxlThreadParallelRunner, runner);
609 error = "JxlDecoderSetParallelRunner failed";
610 if (status != JXL_DEC_SUCCESS)
611 goto done;
612
613 error = "JxlDecoderSubscribeEvents failed";
614 status = JxlDecoderSubscribeEvents (dec, JXL_DEC_BASIC_INFO | JXL_DEC_FULL_IMAGE);
615 if (status != JXL_DEC_SUCCESS)
616 goto done;
617
618 status = JxlDecoderSetInput (dec, next_in, avail_in);
619 error = "JxlDecoderSetInput failed";
620 if (status != JXL_DEC_SUCCESS)
621 goto done;
622
623 for (;;)
624 {
625 status = JxlDecoderProcessInput (dec);
626
627 switch (status)
628 {
629 case JXL_DEC_FULL_IMAGE:
630 error = 0;
631 goto done;
632
633 case JXL_DEC_ERROR:
634 error = "JxlDecoderProcessInput failed";
635 goto done;
636
637 case JXL_DEC_NEED_MORE_INPUT:
638 error = "incomplete file";
639 goto done;
640
641 case JXL_DEC_SUCCESS:
642 error = "incomplete decode";
643 goto done;
644
645 case JXL_DEC_BASIC_INFO:
646 {
647 status = JxlDecoderGetBasicInfo (dec, &info);
648 error = "JxlDecoderGetBasicInfo failed";
649 if (status != JXL_DEC_SUCCESS)
650 goto done;
651
652 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!info.alpha_bits, 8, info.xsize, info.ysize);
653 error = "unable to allocate pixbuf";
654 if (!RETVAL)
655 goto done;
656
657 JxlPixelFormat format = {
658 info.alpha_bits ? 4 : 3,
659 JXL_TYPE_UINT8,
660 JXL_NATIVE_ENDIAN,
661 gdk_pixbuf_get_rowstride (RETVAL)
662 };
663
664 // cannot use gdk_pixbuf_get_byte_length because that does
665 // not return the size of the buffer, but the size of the buffer without
666 // the last padding bytes. the internal buffer is rowstride * ysize,
667 // and this is what the jxl decoder needs. none of this is documented
668 // in either library, of course.
669
670 status = JxlDecoderSetImageOutBuffer (
671 dec,
672 &format,
673 gdk_pixbuf_get_pixels (RETVAL),
674 gdk_pixbuf_get_rowstride (RETVAL) * info.ysize
675 );
676 error = "JxlDecoderSetImageOutBuffer failed";
677 if (status != JXL_DEC_SUCCESS)
678 goto done;
679 }
680 break;
681
682 default:
683 error = "unexpected event";
684 goto done;
685 }
686 }
687
688 done:
689 if (dec)
690 JxlDecoderDestroy (dec);
691
692 if (runner)
693 JxlThreadParallelRunnerDestroy (runner);
694
695 perlinterp_acquire ();
696
697 if (error)
698 {
699 if (RETVAL)
700 g_object_unref (RETVAL);
701
702 croak ("load_jxl: %s (status %d)", error, status);
703 }
704#else
705 croak ("load_jxl: jpeg-xl not enabled at compile time");
706#endif
707}
708 OUTPUT:
709 RETVAL
710
711GdkPixbuf_noinc *
502decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) 712decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
503 CODE: 713 CODE:
504{ 714{
505 struct jpeg_decompress_struct cinfo; 715 struct jpeg_decompress_struct cinfo;
506 struct jpg_err_mgr jerr; 716 struct jpg_err_mgr jerr;
… …
689 CODE: 899 CODE:
690{ 900{
691 STRLEN plen; 901 STRLEN plen;
692 U8 *path = (U8 *)SvPV (pathsv, plen); 902 U8 *path = (U8 *)SvPV (pathsv, plen);
693 U8 *pend = path + plen; 903 U8 *pend = path + plen;
694 U8 dst [plen * 6 * 3], *dstp = dst; 904 U8 dst [plen * 8 * 3], *dstp = dst;
695 905
696 while (path < pend) 906 while (path < pend)
697 { 907 {
698 U8 ch = *path; 908 U8 ch = *path;
699 909
… …
701 *dstp++ = *path++; 911 *dstp++ = *path++;
702 else if (ch >= 'A' && ch <= 'Z') 912 else if (ch >= 'A' && ch <= 'Z')
703 *dstp++ = *path++ + ('a' - 'A'); 913 *dstp++ = *path++ + ('a' - 'A');
704 else if (ch >= '0' && ch <= '9') 914 else if (ch >= '0' && ch <= '9')
705 { 915 {
916 /* version sort, up to 8 digits */
706 STRLEN el, nl = 0; 917 STRLEN el, nl = 0;
707 while (*path >= '0' && *path <= '9' && path < pend) 918 while (*path >= '0' && *path <= '9' && path < pend)
708 path++, nl++; 919 path++, nl++;
709 920
710 for (el = nl; el < 6; el++) 921 for (el = nl; el < 8; el++)
711 *dstp++ = '0'; 922 *dstp++ = '0';
712 923
713 memcpy (dstp, path - nl, nl); 924 memcpy (dstp, path - nl, nl);
714 dstp += nl; 925 dstp += nl;
715 } 926 }

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