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Comparing CV/CV.xs (file contents):
Revision 1.54 by root, Sat Dec 23 08:04:48 2017 UTC vs.
Revision 1.66 by root, Tue Mar 21 00:06:49 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
… …
201 204
202 PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); 205 PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);
203} 206}
204 207
205///////////////////////////////////////////////////////////////////////////// 208/////////////////////////////////////////////////////////////////////////////
209// memory source for libjpeg
206 210
207static void cv_ms_init (j_decompress_ptr cinfo) 211static void cv_ms_init (j_decompress_ptr cinfo)
208{ 212{
209} 213}
210 214
… …
212{ 216{
213} 217}
214 218
215static boolean cv_ms_fill (j_decompress_ptr cinfo) 219static boolean cv_ms_fill (j_decompress_ptr cinfo)
216{ 220{
217 ERREXIT (cinfo, JERR_INPUT_EMPTY); 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);
218 231
219 return TRUE; 232 return TRUE;
220} 233}
221 234
222static void cv_ms_skip (j_decompress_ptr cinfo, long num_bytes) 235static void cv_ms_skip (j_decompress_ptr cinfo, long num_bytes)
223{ 236{
224 if (num_bytes > 0)
225 {
226 struct jpeg_source_mgr *src = (struct jpeg_source_mgr *)cinfo->src; 237 struct jpeg_source_mgr *src = (struct jpeg_source_mgr *)cinfo->src;
227 238
228 src->next_input_byte += num_bytes; 239 src->next_input_byte += num_bytes;
229 src->bytes_in_buffer -= num_bytes; 240 src->bytes_in_buffer -= num_bytes;
230 }
231} 241}
232 242
233static void cv_jpeg_mem_src (j_decompress_ptr cinfo, void *buf, size_t buflen) 243static void cv_jpeg_mem_src (j_decompress_ptr cinfo, void *buf, size_t buflen)
234{ 244{
235 struct jpeg_source_mgr *src; 245 struct jpeg_source_mgr *src;
… …
250 src->bytes_in_buffer = buflen; 260 src->bytes_in_buffer = buflen;
251} 261}
252 262
253///////////////////////////////////////////////////////////////////////////// 263/////////////////////////////////////////////////////////////////////////////
254 264
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
255MODULE = Gtk2::CV PACKAGE = Gtk2::CV 304MODULE = Gtk2::CV PACKAGE = Gtk2::CV
256 305
257PROTOTYPES: ENABLE 306PROTOTYPES: ENABLE
258 307
308void
309_exit (int code)
310
311# calculate the common prefix length of two strings
259# missing function in perl. really :) 312# missing function in perl. really :)
260int 313int
261common_prefix_length (a, b) 314common_prefix_length (a, b)
262 unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); 315 unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg);
263 unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); 316 unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg);
… …
367filetype (SV *image_data) 420filetype (SV *image_data)
368 CODE: 421 CODE:
369{ 422{
370 STRLEN data_len; 423 STRLEN data_len;
371 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 };
372 428
373 if (data_len >= 20 429 if (data_len >= 20
374 && data[0] == 0xff 430 && data[0] == 0xff
375 && data[1] == 0xd8 431 && data[1] == 0xd8
376 && data[2] == 0xff) 432 && data[2] == 0xff)
377 RETVAL = "jpg"; 433 RETVAL = "image/jpeg";
378 else if (data_len >= 12 434 else if (data_len >= 12
379 && data[ 0] == (U8)'R' 435 && data[ 0] == (U8)'R'
380 && data[ 1] == (U8)'I' 436 && data[ 1] == (U8)'I'
381 && data[ 2] == (U8)'F' 437 && data[ 2] == (U8)'F'
382 && data[ 3] == (U8)'F' 438 && data[ 3] == (U8)'F'
383 && data[ 8] == (U8)'W' 439 && data[ 8] == (U8)'W'
384 && data[ 9] == (U8)'E' 440 && data[ 9] == (U8)'E'
385 && data[10] == (U8)'B' 441 && data[10] == (U8)'B'
386 && data[11] == (U8)'P') 442 && data[11] == (U8)'P')
387 RETVAL = "webp"; 443 RETVAL = "image/webp";
388 else if (data_len >= 16 444 else if (data_len >= 16
389 && data[ 0] == 0x89 445 && data[ 0] == 0x89
390 && data[ 1] == (U8)'P' 446 && data[ 1] == (U8)'P'
391 && data[ 2] == (U8)'N' 447 && data[ 2] == (U8)'N'
392 && data[ 3] == (U8)'G' 448 && data[ 3] == (U8)'G'
393 && data[ 4] == 0x0d 449 && data[ 4] == 0x0d
394 && data[ 5] == 0x0a 450 && data[ 5] == 0x0a
395 && data[ 6] == 0x1a 451 && data[ 6] == 0x1a
396 && data[ 7] == 0x0a) 452 && data[ 7] == 0x0a)
397 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
398 else 491 else
399 RETVAL = "other"; 492 XSRETURN_UNDEF;
400} 493}
401 OUTPUT: 494 OUTPUT:
402 RETVAL 495 RETVAL
403 496
404GdkPixbuf_noinc * 497GdkPixbuf_noinc *
… …
478 } 571 }
479 572
480 err_iter: 573 err_iter:
481 WebPDemuxReleaseIterator (&iter); 574 WebPDemuxReleaseIterator (&iter);
482 err_demux: 575 err_demux:
576 WebPDemuxDelete (demux);
483 577
484 perlinterp_acquire (); 578 perlinterp_acquire ();
485#else 579#else
486 croak ("load_webp: webp not enabled at compile time"); 580 croak ("load_webp: webp not enabled at compile time");
581#endif
582}
583 OUTPUT:
584 RETVAL
585
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");
487#endif 717#endif
488} 718}
489 OUTPUT: 719 OUTPUT:
490 RETVAL 720 RETVAL
491 721
… …
517 g_object_unref ((gpointer)pb); 747 g_object_unref ((gpointer)pb);
518 748
519 perlinterp_acquire (); 749 perlinterp_acquire ();
520 XSRETURN_UNDEF; 750 XSRETURN_UNDEF;
521 } 751 }
752
753 if (!data_len)
754 longjmp (jerr.setjmp_buffer, 4);
522 755
523 jpeg_create_decompress (&cinfo); 756 jpeg_create_decompress (&cinfo);
524 cv_jpeg_mem_src (&cinfo, data, data_len); 757 cv_jpeg_mem_src (&cinfo, data, data_len);
525 758
526 jpeg_read_header (&cinfo, TRUE); 759 jpeg_read_header (&cinfo, TRUE);
… …
677 CODE: 910 CODE:
678{ 911{
679 STRLEN plen; 912 STRLEN plen;
680 U8 *path = (U8 *)SvPV (pathsv, plen); 913 U8 *path = (U8 *)SvPV (pathsv, plen);
681 U8 *pend = path + plen; 914 U8 *pend = path + plen;
682 U8 dst [plen * 6 * 3], *dstp = dst; 915 U8 dst [plen * 8 * 3], *dstp = dst;
683 916
684 while (path < pend) 917 while (path < pend)
685 { 918 {
686 U8 ch = *path; 919 U8 ch = *path;
687 920
… …
689 *dstp++ = *path++; 922 *dstp++ = *path++;
690 else if (ch >= 'A' && ch <= 'Z') 923 else if (ch >= 'A' && ch <= 'Z')
691 *dstp++ = *path++ + ('a' - 'A'); 924 *dstp++ = *path++ + ('a' - 'A');
692 else if (ch >= '0' && ch <= '9') 925 else if (ch >= '0' && ch <= '9')
693 { 926 {
927 /* version sort, up to 8 digits */
694 STRLEN el, nl = 0; 928 STRLEN el, nl = 0;
695 while (*path >= '0' && *path <= '9' && path < pend) 929 while (*path >= '0' && *path <= '9' && path < pend)
696 path++, nl++; 930 path++, nl++;
697 931
698 for (el = nl; el < 6; el++) 932 for (el = nl; el < 8; el++)
699 *dstp++ = '0'; 933 *dstp++ = '0';
700 934
701 memcpy (dstp, path - nl, nl); 935 memcpy (dstp, path - nl, nl);
702 dstp += nl; 936 dstp += nl;
703 } 937 }

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