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Comparing CV/CV.xs (file contents):
Revision 1.53 by root, Sat Dec 23 05:27:04 2017 UTC vs.
Revision 1.69 by root, Wed Jun 7 17:18:46 2023 UTC

… …
20#include <gtk2perl.h> 20#include <gtk2perl.h>
21 21
22#include <assert.h> 22#include <assert.h>
23 23
24#if WEBP 24#if WEBP
25#include <webp/demux.h>
25#include <webp/decode.h> 26#include <webp/decode.h>
26#endif 27#endif
27 28
29#if JXL
30#include <jxl/decode.h>
31#include "jxl/thread_parallel_runner.h"
32#endif
33
28#include "perlmulticore.h" 34#include "perlmulticore.h"
29 35
30#define IW 80 /* MUST match Schnauzer.pm! */ 36#define IW 80 /* MUST match Schnauzer.pm! */
31#define IH 60 /* MUST match Schnauzer.pm! */ 37#define IH 60 /* MUST match Schnauzer.pm! */
32
33#define RAND (seed = (seed + 7141) * 54773 % 134456)
34 38
35#define LINELENGTH 240 39#define LINELENGTH 240
36 40
37#define ELLIPSIS "\xe2\x80\xa6" 41#define ELLIPSIS "\xe2\x80\xa6"
38 42
… …
200 204
201 PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); 205 PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);
202} 206}
203 207
204///////////////////////////////////////////////////////////////////////////// 208/////////////////////////////////////////////////////////////////////////////
209// memory source for libjpeg
205 210
206static void cv_ms_init (j_decompress_ptr cinfo) 211static void cv_ms_init (j_decompress_ptr cinfo)
207{ 212{
208} 213}
209 214
… …
211{ 216{
212} 217}
213 218
214static boolean cv_ms_fill (j_decompress_ptr cinfo) 219static boolean cv_ms_fill (j_decompress_ptr cinfo)
215{ 220{
216 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);
217 231
218 return TRUE; 232 return TRUE;
219} 233}
220 234
221static void cv_ms_skip (j_decompress_ptr cinfo, long num_bytes) 235static void cv_ms_skip (j_decompress_ptr cinfo, long num_bytes)
222{ 236{
223 if (num_bytes > 0)
224 {
225 struct jpeg_source_mgr *src = (struct jpeg_source_mgr *)cinfo->src; 237 struct jpeg_source_mgr *src = (struct jpeg_source_mgr *)cinfo->src;
226 238
227 src->next_input_byte += num_bytes; 239 src->next_input_byte += num_bytes;
228 src->bytes_in_buffer -= num_bytes; 240 src->bytes_in_buffer -= num_bytes;
229 }
230} 241}
231 242
232static 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)
233{ 244{
234 struct jpeg_source_mgr *src; 245 struct jpeg_source_mgr *src;
… …
249 src->bytes_in_buffer = buflen; 260 src->bytes_in_buffer = buflen;
250} 261}
251 262
252///////////////////////////////////////////////////////////////////////////// 263/////////////////////////////////////////////////////////////////////////////
253 264
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
254MODULE = Gtk2::CV PACKAGE = Gtk2::CV 304MODULE = Gtk2::CV PACKAGE = Gtk2::CV
255 305
256PROTOTYPES: ENABLE 306PROTOTYPES: ENABLE
257 307
308void
309_exit (int code)
310
311# calculate the common prefix length of two strings
258# missing function in perl. really :) 312# missing function in perl. really :)
259int 313int
260common_prefix_length (a, b) 314common_prefix_length (a, b)
261 unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); 315 unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg);
262 unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); 316 unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg);
… …
366filetype (SV *image_data) 420filetype (SV *image_data)
367 CODE: 421 CODE:
368{ 422{
369 STRLEN data_len; 423 STRLEN data_len;
370 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 };
371 428
372 if (data_len >= 20 429 if (data_len >= 20
373 && data[0] == 0xff 430 && data[0] == 0xff
374 && data[1] == 0xd8 431 && data[1] == 0xd8
375 && data[2] == 0xff) 432 && data[2] == 0xff)
376 RETVAL = "jpg"; 433 RETVAL = "image/jpeg";
377 else if (data_len >= 12 434 else if (data_len >= 12
378 && data[ 0] == (U8)'R' 435 && data[ 0] == (U8)'R'
379 && data[ 1] == (U8)'I' 436 && data[ 1] == (U8)'I'
380 && data[ 2] == (U8)'F' 437 && data[ 2] == (U8)'F'
381 && data[ 3] == (U8)'F' 438 && data[ 3] == (U8)'F'
382 && data[ 8] == (U8)'W' 439 && data[ 8] == (U8)'W'
383 && data[ 9] == (U8)'E' 440 && data[ 9] == (U8)'E'
384 && data[10] == (U8)'B' 441 && data[10] == (U8)'B'
385 && data[11] == (U8)'P') 442 && data[11] == (U8)'P')
386 RETVAL = "webp"; 443 RETVAL = "image/webp";
387 else if (data_len >= 16 444 else if (data_len >= 16
388 && data[ 0] == 0x89 445 && data[ 0] == 0x89
389 && data[ 1] == (U8)'P' 446 && data[ 1] == (U8)'P'
390 && data[ 2] == (U8)'N' 447 && data[ 2] == (U8)'N'
391 && data[ 3] == (U8)'G' 448 && data[ 3] == (U8)'G'
392 && data[ 4] == 0x0d 449 && data[ 4] == 0x0d
393 && data[ 5] == 0x0a 450 && data[ 5] == 0x0a
394 && data[ 6] == 0x1a 451 && data[ 6] == 0x1a
395 && data[ 7] == 0x0a) 452 && data[ 7] == 0x0a)
396 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
397 else 505 else
398 RETVAL = "other"; 506 XSRETURN_UNDEF;
399} 507}
400 OUTPUT: 508 OUTPUT:
401 RETVAL 509 RETVAL
402 510
403GdkPixbuf_noinc * 511GdkPixbuf_noinc *
404decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) 512decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
405 CODE: 513 CODE:
406{ 514{
407#if WEBP 515#if WEBP
408 guchar *data;
409 STRLEN data_size; 516 STRLEN data_size;
410 int alpha; 517 int alpha;
518 WebPData data;
519 WebPDemuxer *demux;
520 WebPIterator iter;
411 WebPDecoderConfig config; 521 WebPDecoderConfig config;
412 int inw, inh; 522 int inw, inh;
413 523
414 data = SvPVbyte (image_data, data_size); 524 data.bytes = (uint8_t *)SvPVbyte (image_data, data_size);
525 data.size = data_size;
415 526
416 perlinterp_release (); 527 perlinterp_release ();
417 528
418 RETVAL = 0; 529 RETVAL = 0;
419 530
531 if (!(demux = WebPDemux (&data)))
532 goto err_demux;
533
534 if (!WebPDemuxGetFrame (demux, 1, &iter))
535 goto err_iter;
536
420 if (!WebPInitDecoderConfig (&config)) 537 if (!WebPInitDecoderConfig (&config))
421 goto err; 538 goto err_iter;
422 539
423 config.options.use_threads = 1; 540 config.options.use_threads = 1;
424 541
425 if (WebPGetFeatures (data, data_size, &config.input) != VP8_STATUS_OK) 542 if (WebPGetFeatures (iter.fragment.bytes, iter.fragment.size, &config.input) != VP8_STATUS_OK)
426 goto err; 543 goto err_iter;
427 544
428 inw = config.input.width; 545 inw = config.input.width;
429 inh = config.input.height; 546 inh = config.input.height;
430 547
431 if (thumbnail) 548 if (thumbnail)
… …
446 { 563 {
447 iw = inw; 564 iw = inw;
448 ih = inh; 565 ih = inh;
449 } 566 }
450 567
451 alpha = config.input.has_alpha; 568 alpha = !!config.input.has_alpha;
452 569
453 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!alpha, 8, iw, ih); 570 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, alpha, 8, iw, ih);
454 if (!RETVAL) 571 if (!RETVAL)
455 goto err; 572 goto err_iter;
456 573
457 config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB; 574 config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB;
458 config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL); 575 config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL);
459 config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL); 576 config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL);
460 config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL); 577 config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL);
461 config.output.is_external_memory = 1; 578 config.output.is_external_memory = 1;
462 579
463 if (WebPDecode (data, data_size, &config) != VP8_STATUS_OK) 580 if (WebPDecode (iter.fragment.bytes, iter.fragment.size, &config) != VP8_STATUS_OK)
464 { 581 {
465 g_object_unref (RETVAL); 582 g_object_unref (RETVAL);
466 RETVAL = 0; 583 RETVAL = 0;
467 goto err; 584 goto err_iter;
468 } 585 }
469 586
470 err: 587 err_iter:
588 WebPDemuxReleaseIterator (&iter);
589 err_demux:
590 WebPDemuxDelete (demux);
591
471 perlinterp_acquire (); 592 perlinterp_acquire ();
472#else 593#else
473 croak ("load_webp: webp not enabled at compile time"); 594 croak ("load_webp: webp not enabled at compile time");
595#endif
596}
597 OUTPUT:
598 RETVAL
599
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");
474#endif 731#endif
475} 732}
476 OUTPUT: 733 OUTPUT:
477 RETVAL 734 RETVAL
478 735
… …
504 g_object_unref ((gpointer)pb); 761 g_object_unref ((gpointer)pb);
505 762
506 perlinterp_acquire (); 763 perlinterp_acquire ();
507 XSRETURN_UNDEF; 764 XSRETURN_UNDEF;
508 } 765 }
766
767 if (!data_len)
768 longjmp (jerr.setjmp_buffer, 4);
509 769
510 jpeg_create_decompress (&cinfo); 770 jpeg_create_decompress (&cinfo);
511 cv_jpeg_mem_src (&cinfo, data, data_len); 771 cv_jpeg_mem_src (&cinfo, data, data_len);
512 772
513 jpeg_read_header (&cinfo, TRUE); 773 jpeg_read_header (&cinfo, TRUE);
… …
664 CODE: 924 CODE:
665{ 925{
666 STRLEN plen; 926 STRLEN plen;
667 U8 *path = (U8 *)SvPV (pathsv, plen); 927 U8 *path = (U8 *)SvPV (pathsv, plen);
668 U8 *pend = path + plen; 928 U8 *pend = path + plen;
669 U8 dst [plen * 6 * 3], *dstp = dst; 929 U8 dst [plen * 8 * 3], *dstp = dst;
670 930
671 while (path < pend) 931 while (path < pend)
672 { 932 {
673 U8 ch = *path; 933 U8 ch = *path;
674 934
… …
676 *dstp++ = *path++; 936 *dstp++ = *path++;
677 else if (ch >= 'A' && ch <= 'Z') 937 else if (ch >= 'A' && ch <= 'Z')
678 *dstp++ = *path++ + ('a' - 'A'); 938 *dstp++ = *path++ + ('a' - 'A');
679 else if (ch >= '0' && ch <= '9') 939 else if (ch >= '0' && ch <= '9')
680 { 940 {
941 /* version sort, up to 8 digits */
681 STRLEN el, nl = 0; 942 STRLEN el, nl = 0;
682 while (*path >= '0' && *path <= '9' && path < pend) 943 while (*path >= '0' && *path <= '9' && path < pend)
683 path++, nl++; 944 path++, nl++;
684 945
685 for (el = nl; el < 6; el++) 946 for (el = nl; el < 8; el++)
686 *dstp++ = '0'; 947 *dstp++ = '0';
687 948
688 memcpy (dstp, path - nl, nl); 949 memcpy (dstp, path - nl, nl);
689 dstp += nl; 950 dstp += nl;
690 } 951 }

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