| … | |
… | |
| 418 | CODE: |
418 | CODE: |
| 419 | { |
419 | { |
| 420 | STRLEN data_len; |
420 | STRLEN data_len; |
| 421 | U8 *data = SvPVbyte (image_data, data_len); |
421 | U8 *data = SvPVbyte (image_data, data_len); |
| 422 | static const unsigned char jxl_header[] = { |
422 | static const unsigned char jxl_header[] = { |
| 423 | 0, 0, 0, 0x0c, 0x4a, 0x58, 0x4c, 0x20, |
423 | 0, 0, 0, 0x0c, 0x4a, 0x58, 0x4c, 0x20, 0x0d, 0xa, 0x87, 0x0a |
| 424 | 0x0d, 0xa, 0x87, 0x0a, 0, 0, 0, 0x14, |
|
|
| 425 | 0x66, 0x74, 0x79, 0x70, 0x6a, 0x78, 0x6c, 0x20, |
|
|
| 426 | 0, 0, 0, 0, 0x6a, 0x78, 0x6c, 0x20, |
|
|
| 427 | }; |
424 | }; |
| 428 | |
425 | |
| 429 | if (data_len >= 20 |
426 | if (data_len >= 20 |
| 430 | && data[0] == 0xff |
427 | && data[0] == 0xff |
| 431 | && data[1] == 0xd8 |
428 | && data[1] == 0xd8 |
| … | |
… | |
| 450 | && data[ 5] == 0x0a |
447 | && data[ 5] == 0x0a |
| 451 | && data[ 6] == 0x1a |
448 | && data[ 6] == 0x1a |
| 452 | && data[ 7] == 0x0a) |
449 | && data[ 7] == 0x0a) |
| 453 | RETVAL = "image/png"; |
450 | RETVAL = "image/png"; |
| 454 | else if (data_len >= sizeof (jxl_header) && memcmp (data, jxl_header, sizeof (jxl_header)) == 0) |
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) |
| 455 | RETVAL = "image/jxl"; |
456 | RETVAL = "image/jxl"; |
| 456 | else if (data_len >= 13 |
457 | else if (data_len >= 13 |
| 457 | && data[0] == 'G' |
458 | && data[0] == 'G' |
| 458 | && data[1] == 'I' |
459 | && data[1] == 'I' |
| 459 | && data[2] == 'F' |
460 | && data[2] == 'F' |
| … | |
… | |
| 582 | GdkPixbuf_noinc * |
583 | GdkPixbuf_noinc * |
| 583 | decode_jxl (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
584 | decode_jxl (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
| 584 | CODE: |
585 | CODE: |
| 585 | { |
586 | { |
| 586 | #if JXL |
587 | #if JXL |
| 587 | JxlDecoder *dec = JxlDecoderCreate (0); |
588 | JxlDecoder *dec; |
| 588 | JxlBasicInfo info; |
589 | JxlBasicInfo info; |
| 589 | const uint8_t *next_in = (uint8_t *)SvPVbyte_nolen (image_data); |
590 | const uint8_t *next_in = (uint8_t *)SvPVbyte_nolen (image_data); |
| 590 | size_t avail_in = SvCUR (image_data); |
591 | size_t avail_in = SvCUR (image_data); |
| 591 | const char *error = 0; |
592 | const char *error = 0; |
|
|
593 | JxlDecoderStatus status; |
| 592 | void *runner = 0; |
594 | void *runner = 0; |
| 593 | struct bmff_box box; |
595 | |
|
|
596 | RETVAL = 0; |
| 594 | |
597 | |
| 595 | perlinterp_release (); |
598 | perlinterp_release (); |
| 596 | |
599 | |
| 597 | RETVAL = 0; |
600 | dec = JxlDecoderCreate (0); |
| 598 | |
601 | |
| 599 | error = "JxlDecoderCreate failed"; |
602 | error = "JxlDecoderCreate failed"; |
| 600 | if (!dec) |
603 | if (!dec) |
| 601 | goto done; |
604 | goto done; |
| 602 | |
605 | |
| 603 | runner = JxlThreadParallelRunnerCreate (0, JxlThreadParallelRunnerDefaultNumWorkerThreads ()); |
606 | runner = JxlThreadParallelRunnerCreate (0, JxlThreadParallelRunnerDefaultNumWorkerThreads ()); |
| 604 | |
607 | |
|
|
608 | status = JxlDecoderSetParallelRunner (dec, JxlThreadParallelRunner, runner); |
| 605 | error = "JxlDecoderSetParallelRunner failed"; |
609 | error = "JxlDecoderSetParallelRunner failed"; |
| 606 | if (JxlDecoderSetParallelRunner (dec, JxlThreadParallelRunner, runner) != JXL_DEC_SUCCESS) |
610 | if (status != JXL_DEC_SUCCESS) |
| 607 | goto done; |
611 | goto done; |
| 608 | |
612 | |
| 609 | error = "JxlDecoderSubscribeEvents failed"; |
613 | error = "JxlDecoderSubscribeEvents failed"; |
| 610 | if (JxlDecoderSubscribeEvents (dec, JXL_DEC_FULL_IMAGE | JXL_DEC_BASIC_INFO) != JXL_DEC_SUCCESS) |
614 | status = JxlDecoderSubscribeEvents (dec, JXL_DEC_BASIC_INFO | JXL_DEC_FULL_IMAGE); |
|
|
615 | if (status != JXL_DEC_SUCCESS) |
| 611 | goto done; |
616 | goto done; |
| 612 | |
617 | |
|
|
618 | status = JxlDecoderSetInput (dec, next_in, avail_in); |
| 613 | error = "JxlDecoderSetInput failed"; |
619 | error = "JxlDecoderSetInput failed"; |
| 614 | if (JxlDecoderSetInput (dec, next_in, avail_in) != JXL_DEC_SUCCESS) |
620 | if (status != JXL_DEC_SUCCESS) |
| 615 | goto done; |
621 | goto done; |
| 616 | |
622 | |
| 617 | for (;;) |
623 | for (;;) |
| 618 | { |
624 | { |
| 619 | JxlDecoderStatus status = JxlDecoderProcessInput (dec); |
625 | status = JxlDecoderProcessInput (dec); |
| 620 | |
626 | |
| 621 | printf ("status %d\n",status); |
|
|
| 622 | |
|
|
| 623 | switch (status) |
627 | switch (status) |
| 624 | { |
628 | { |
|
|
629 | case JXL_DEC_FULL_IMAGE: |
|
|
630 | error = 0; |
|
|
631 | goto done; |
|
|
632 | |
| 625 | case JXL_DEC_ERROR: |
633 | case JXL_DEC_ERROR: |
| 626 | error = "JxlDecoderProcessInput failed"; |
634 | error = "JxlDecoderProcessInput failed"; |
| 627 | goto done; |
635 | goto done; |
| 628 | |
636 | |
| 629 | case JXL_DEC_NEED_MORE_INPUT: |
637 | case JXL_DEC_NEED_MORE_INPUT: |
| 630 | error = "incomplete file"; |
638 | error = "incomplete file"; |
| 631 | goto done; |
639 | goto done; |
| 632 | |
640 | |
| 633 | case JXL_DEC_SUCCESS: |
641 | case JXL_DEC_SUCCESS: |
|
|
642 | error = "incomplete decode"; |
| 634 | goto done; |
643 | goto done; |
| 635 | |
644 | |
| 636 | case JXL_DEC_NEED_IMAGE_OUT_BUFFER: |
645 | case JXL_DEC_BASIC_INFO: |
| 637 | { |
646 | { |
|
|
647 | status = JxlDecoderGetBasicInfo (dec, &info); |
| 638 | error = "JxlDecoderGetBasicInfo failed"; |
648 | error = "JxlDecoderGetBasicInfo failed"; |
| 639 | if (JxlDecoderGetBasicInfo (dec, &info) != JXL_DEC_SUCCESS) |
649 | if (status != JXL_DEC_SUCCESS) |
| 640 | goto done; |
650 | goto done; |
| 641 | |
651 | |
| 642 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!info.alpha_bits, 8, info.xsize, info.ysize); |
652 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!info.alpha_bits, 8, info.xsize, info.ysize); |
| 643 | error = "unable to allocate pixbuf"; |
653 | error = "unable to allocate pixbuf"; |
| 644 | if (!RETVAL) |
654 | if (!RETVAL) |
| … | |
… | |
| 649 | JXL_TYPE_UINT8, |
659 | JXL_TYPE_UINT8, |
| 650 | JXL_NATIVE_ENDIAN, |
660 | JXL_NATIVE_ENDIAN, |
| 651 | gdk_pixbuf_get_rowstride (RETVAL) |
661 | gdk_pixbuf_get_rowstride (RETVAL) |
| 652 | }; |
662 | }; |
| 653 | |
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 | ); |
| 654 | error = "JxlDecoderSetImageOutBuffer failed"; |
676 | error = "JxlDecoderSetImageOutBuffer failed"; |
| 655 | if (JxlDecoderSetImageOutBuffer ( |
|
|
| 656 | dec, |
|
|
| 657 | &format, |
|
|
| 658 | gdk_pixbuf_get_pixels (RETVAL), |
|
|
| 659 | gdk_pixbuf_get_byte_length (RETVAL) |
|
|
| 660 | ) != JXL_DEC_SUCCESS) |
677 | if (status != JXL_DEC_SUCCESS) |
| 661 | goto done; |
678 | goto done; |
| 662 | } |
679 | } |
| 663 | break; |
680 | break; |
| 664 | |
681 | |
| 665 | default: |
682 | default: |
| … | |
… | |
| 680 | if (error) |
697 | if (error) |
| 681 | { |
698 | { |
| 682 | if (RETVAL) |
699 | if (RETVAL) |
| 683 | g_object_unref (RETVAL); |
700 | g_object_unref (RETVAL); |
| 684 | |
701 | |
| 685 | croak ("load_jxl: %s", error); |
702 | croak ("load_jxl: %s (status %d)", error, status); |
| 686 | } |
703 | } |
| 687 | #else |
704 | #else |
| 688 | croak ("load_jxl: jpeg-xl not enabled at compile time"); |
705 | croak ("load_jxl: jpeg-xl not enabled at compile time"); |
| 689 | #endif |
706 | #endif |
| 690 | } |
707 | } |
