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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 1.69 by root, Wed Jun 7 17:18:46 2023 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
307
308void
309_exit (int code)
265 310
266# calculate the common prefix length of two strings 311# calculate the common prefix length of two strings
267# missing function in perl. really :) 312# missing function in perl. really :)
268int 313int
269common_prefix_length (a, b) 314common_prefix_length (a, b)
… …
375filetype (SV *image_data) 420filetype (SV *image_data)
376 CODE: 421 CODE:
377{ 422{
378 STRLEN data_len; 423 STRLEN data_len;
379 U8 *data = SvPVbyte (image_data, 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 };
380 428
381 if (data_len >= 20 429 if (data_len >= 20
382 && data[0] == 0xff 430 && data[0] == 0xff
383 && data[1] == 0xd8 431 && data[1] == 0xd8
384 && data[2] == 0xff) 432 && data[2] == 0xff)
385 RETVAL = "jpg"; 433 RETVAL = "image/jpeg";
386 else if (data_len >= 12 434 else if (data_len >= 12
387 && data[ 0] == (U8)'R' 435 && data[ 0] == (U8)'R'
388 && data[ 1] == (U8)'I' 436 && data[ 1] == (U8)'I'
389 && data[ 2] == (U8)'F' 437 && data[ 2] == (U8)'F'
390 && data[ 3] == (U8)'F' 438 && data[ 3] == (U8)'F'
391 && data[ 8] == (U8)'W' 439 && data[ 8] == (U8)'W'
392 && data[ 9] == (U8)'E' 440 && data[ 9] == (U8)'E'
393 && data[10] == (U8)'B' 441 && data[10] == (U8)'B'
394 && data[11] == (U8)'P') 442 && data[11] == (U8)'P')
395 RETVAL = "webp"; 443 RETVAL = "image/webp";
396 else if (data_len >= 16 444 else if (data_len >= 16
397 && data[ 0] == 0x89 445 && data[ 0] == 0x89
398 && data[ 1] == (U8)'P' 446 && data[ 1] == (U8)'P'
399 && data[ 2] == (U8)'N' 447 && data[ 2] == (U8)'N'
400 && data[ 3] == (U8)'G' 448 && data[ 3] == (U8)'G'
401 && data[ 4] == 0x0d 449 && data[ 4] == 0x0d
402 && data[ 5] == 0x0a 450 && data[ 5] == 0x0a
403 && data[ 6] == 0x1a 451 && data[ 6] == 0x1a
404 && data[ 7] == 0x0a) 452 && data[ 7] == 0x0a)
405 RETVAL = "png"; 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 else if (data_len >= 0x8000 + 6
491 && data[0x8000+1] == (U8)'B'
492 && data[0x8000+2] == (U8)'E'
493 && data[0x8000+3] == (U8)'A'
494 && data[0x8000+4] == (U8)'0'
495 && data[0x8000+5] == (U8)'1')
496 RETVAL = "video/iso-bluray";
497 else if (data_len >= 0x8000 + 6
498 && data[0x8000+1] == (U8)'C'
499 && data[0x8000+2] == (U8)'D'
500 && data[0x8000+3] == (U8)'0'
501 && data[0x8000+4] == (U8)'0'
502 && data[0x8000+5] == (U8)'1')
503 RETVAL = "video/iso9660";
504
406 else 505 else
407 RETVAL = "other"; 506 XSRETURN_UNDEF;
408} 507}
409 OUTPUT: 508 OUTPUT:
410 RETVAL 509 RETVAL
411 510
412GdkPixbuf_noinc * 511GdkPixbuf_noinc *
… …
497} 596}
498 OUTPUT: 597 OUTPUT:
499 RETVAL 598 RETVAL
500 599
501GdkPixbuf_noinc * 600GdkPixbuf_noinc *
601decode_jxl (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
602 CODE:
603{
604#if JXL
605 JxlDecoder *dec;
606 JxlBasicInfo info;
607 const uint8_t *next_in = (uint8_t *)SvPVbyte_nolen (image_data);
608 size_t avail_in = SvCUR (image_data);
609 const char *error = 0;
610 JxlDecoderStatus status;
611 static void *runner_cache;
612 void *runner = 0;
613
614 RETVAL = 0;
615
616 if (runner_cache)
617 runner = runner_cache;
618 else
619 runner = JxlThreadParallelRunnerCreate (0, JxlThreadParallelRunnerDefaultNumWorkerThreads ());
620
621 runner_cache = 0;
622
623 perlinterp_release ();
624
625 dec = JxlDecoderCreate (0);
626
627 error = "JxlDecoderCreate failed";
628 if (!dec)
629 goto done;
630
631 status = JxlDecoderSetParallelRunner (dec, JxlThreadParallelRunner, runner);
632 error = "JxlDecoderSetParallelRunner failed";
633 if (status != JXL_DEC_SUCCESS)
634 goto done;
635
636 error = "JxlDecoderSubscribeEvents failed";
637 status = JxlDecoderSubscribeEvents (dec, JXL_DEC_BASIC_INFO | JXL_DEC_FULL_IMAGE);
638 if (status != JXL_DEC_SUCCESS)
639 goto done;
640
641 status = JxlDecoderSetInput (dec, next_in, avail_in);
642 error = "JxlDecoderSetInput failed";
643 if (status != JXL_DEC_SUCCESS)
644 goto done;
645
646 for (;;)
647 {
648 status = JxlDecoderProcessInput (dec);
649
650 switch (status)
651 {
652 case JXL_DEC_FULL_IMAGE:
653 error = 0;
654 goto done;
655
656 case JXL_DEC_ERROR:
657 error = "JxlDecoderProcessInput failed";
658 goto done;
659
660 case JXL_DEC_NEED_MORE_INPUT:
661 error = "incomplete file";
662 goto done;
663
664 case JXL_DEC_SUCCESS:
665 error = "incomplete decode";
666 goto done;
667
668 case JXL_DEC_BASIC_INFO:
669 {
670 status = JxlDecoderGetBasicInfo (dec, &info);
671 error = "JxlDecoderGetBasicInfo failed";
672 if (status != JXL_DEC_SUCCESS)
673 goto done;
674
675 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!info.alpha_bits, 8, info.xsize, info.ysize);
676 error = "unable to allocate pixbuf";
677 if (!RETVAL)
678 goto done;
679
680 JxlPixelFormat format = {
681 info.alpha_bits ? 4 : 3,
682 JXL_TYPE_UINT8,
683 JXL_NATIVE_ENDIAN,
684 gdk_pixbuf_get_rowstride (RETVAL)
685 };
686
687 // cannot use gdk_pixbuf_get_byte_length because that does
688 // not return the size of the buffer, but the size of the buffer without
689 // the last padding bytes. the internal buffer is rowstride * ysize,
690 // and this is what the jxl decoder needs. none of this is documented
691 // in either library, of course.
692
693 status = JxlDecoderSetImageOutBuffer (
694 dec,
695 &format,
696 gdk_pixbuf_get_pixels (RETVAL),
697 gdk_pixbuf_get_rowstride (RETVAL) * info.ysize
698 );
699 error = "JxlDecoderSetImageOutBuffer failed";
700 if (status != JXL_DEC_SUCCESS)
701 goto done;
702 }
703 break;
704
705 default:
706 error = "unexpected event";
707 goto done;
708 }
709 }
710
711 done:
712 if (dec)
713 JxlDecoderDestroy (dec);
714
715 perlinterp_acquire ();
716
717 if (runner_cache)
718 JxlThreadParallelRunnerDestroy (runner);
719
720 runner_cache = runner;
721
722 if (error)
723 {
724 if (RETVAL)
725 g_object_unref (RETVAL);
726
727 croak ("load_jxl: %s (status %d)", error, status);
728 }
729#else
730 croak ("load_jxl: jpeg-xl not enabled at compile time");
731#endif
732}
733 OUTPUT:
734 RETVAL
735
736GdkPixbuf_noinc *
502decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) 737decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
503 CODE: 738 CODE:
504{ 739{
505 struct jpeg_decompress_struct cinfo; 740 struct jpeg_decompress_struct cinfo;
506 struct jpg_err_mgr jerr; 741 struct jpg_err_mgr jerr;
… …
689 CODE: 924 CODE:
690{ 925{
691 STRLEN plen; 926 STRLEN plen;
692 U8 *path = (U8 *)SvPV (pathsv, plen); 927 U8 *path = (U8 *)SvPV (pathsv, plen);
693 U8 *pend = path + plen; 928 U8 *pend = path + plen;
694 U8 dst [plen * 6 * 3], *dstp = dst; 929 U8 dst [plen * 8 * 3], *dstp = dst;
695 930
696 while (path < pend) 931 while (path < pend)
697 { 932 {
698 U8 ch = *path; 933 U8 ch = *path;
699 934
… …
701 *dstp++ = *path++; 936 *dstp++ = *path++;
702 else if (ch >= 'A' && ch <= 'Z') 937 else if (ch >= 'A' && ch <= 'Z')
703 *dstp++ = *path++ + ('a' - 'A'); 938 *dstp++ = *path++ + ('a' - 'A');
704 else if (ch >= '0' && ch <= '9') 939 else if (ch >= '0' && ch <= '9')
705 { 940 {
941 /* version sort, up to 8 digits */
706 STRLEN el, nl = 0; 942 STRLEN el, nl = 0;
707 while (*path >= '0' && *path <= '9' && path < pend) 943 while (*path >= '0' && *path <= '9' && path < pend)
708 path++, nl++; 944 path++, nl++;
709 945
710 for (el = nl; el < 6; el++) 946 for (el = nl; el < 8; el++)
711 *dstp++ = '0'; 947 *dstp++ = '0';
712 948
713 memcpy (dstp, path - nl, nl); 949 memcpy (dstp, path - nl, nl);
714 dstp += nl; 950 dstp += nl;
715 } 951 }

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