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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 1.65 by root, Thu Dec 2 03:11:45 2021 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
308# calculate the common prefix length of two strings
258# missing function in perl. really :) 309# missing function in perl. really :)
259int 310int
260common_prefix_length (a, b) 311common_prefix_length (a, b)
261 unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); 312 unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg);
262 unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); 313 unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg);
… …
366filetype (SV *image_data) 417filetype (SV *image_data)
367 CODE: 418 CODE:
368{ 419{
369 STRLEN data_len; 420 STRLEN data_len;
370 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 };
371 425
372 if (data_len >= 20 426 if (data_len >= 20
373 && data[0] == 0xff 427 && data[0] == 0xff
374 && data[1] == 0xd8 428 && data[1] == 0xd8
375 && data[2] == 0xff) 429 && data[2] == 0xff)
376 RETVAL = "jpg"; 430 RETVAL = "image/jpeg";
377 else if (data_len >= 12 431 else if (data_len >= 12
378 && data[ 0] == (U8)'R' 432 && data[ 0] == (U8)'R'
379 && data[ 1] == (U8)'I' 433 && data[ 1] == (U8)'I'
380 && data[ 2] == (U8)'F' 434 && data[ 2] == (U8)'F'
381 && data[ 3] == (U8)'F' 435 && data[ 3] == (U8)'F'
382 && data[ 8] == (U8)'W' 436 && data[ 8] == (U8)'W'
383 && data[ 9] == (U8)'E' 437 && data[ 9] == (U8)'E'
384 && data[10] == (U8)'B' 438 && data[10] == (U8)'B'
385 && data[11] == (U8)'P') 439 && data[11] == (U8)'P')
386 RETVAL = "webp"; 440 RETVAL = "image/webp";
387 else if (data_len >= 16 441 else if (data_len >= 16
388 && data[ 0] == 0x89 442 && data[ 0] == 0x89
389 && data[ 1] == (U8)'P' 443 && data[ 1] == (U8)'P'
390 && data[ 2] == (U8)'N' 444 && data[ 2] == (U8)'N'
391 && data[ 3] == (U8)'G' 445 && data[ 3] == (U8)'G'
392 && data[ 4] == 0x0d 446 && data[ 4] == 0x0d
393 && data[ 5] == 0x0a 447 && data[ 5] == 0x0a
394 && data[ 6] == 0x1a 448 && data[ 6] == 0x1a
395 && data[ 7] == 0x0a) 449 && data[ 7] == 0x0a)
396 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
397 else 488 else
398 RETVAL = "other"; 489 XSRETURN_UNDEF;
399} 490}
400 OUTPUT: 491 OUTPUT:
401 RETVAL 492 RETVAL
402 493
403GdkPixbuf_noinc * 494GdkPixbuf_noinc *
404decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) 495decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
405 CODE: 496 CODE:
406{ 497{
407#if WEBP 498#if WEBP
408 guchar *data;
409 STRLEN data_size; 499 STRLEN data_size;
410 int alpha; 500 int alpha;
501 WebPData data;
502 WebPDemuxer *demux;
503 WebPIterator iter;
411 WebPDecoderConfig config; 504 WebPDecoderConfig config;
412 int inw, inh; 505 int inw, inh;
413 506
414 data = SvPVbyte (image_data, data_size); 507 data.bytes = (uint8_t *)SvPVbyte (image_data, data_size);
508 data.size = data_size;
415 509
416 perlinterp_release (); 510 perlinterp_release ();
417 511
418 RETVAL = 0; 512 RETVAL = 0;
419 513
514 if (!(demux = WebPDemux (&data)))
515 goto err_demux;
516
517 if (!WebPDemuxGetFrame (demux, 1, &iter))
518 goto err_iter;
519
420 if (!WebPInitDecoderConfig (&config)) 520 if (!WebPInitDecoderConfig (&config))
421 goto err; 521 goto err_iter;
422 522
423 config.options.use_threads = 1; 523 config.options.use_threads = 1;
424 524
425 if (WebPGetFeatures (data, data_size, &config.input) != VP8_STATUS_OK) 525 if (WebPGetFeatures (iter.fragment.bytes, iter.fragment.size, &config.input) != VP8_STATUS_OK)
426 goto err; 526 goto err_iter;
427 527
428 inw = config.input.width; 528 inw = config.input.width;
429 inh = config.input.height; 529 inh = config.input.height;
430 530
431 if (thumbnail) 531 if (thumbnail)
… …
446 { 546 {
447 iw = inw; 547 iw = inw;
448 ih = inh; 548 ih = inh;
449 } 549 }
450 550
451 alpha = config.input.has_alpha; 551 alpha = !!config.input.has_alpha;
452 552
453 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!alpha, 8, iw, ih); 553 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, alpha, 8, iw, ih);
454 if (!RETVAL) 554 if (!RETVAL)
455 goto err; 555 goto err_iter;
456 556
457 config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB; 557 config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB;
458 config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL); 558 config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL);
459 config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL); 559 config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL);
460 config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL); 560 config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL);
461 config.output.is_external_memory = 1; 561 config.output.is_external_memory = 1;
462 562
463 if (WebPDecode (data, data_size, &config) != VP8_STATUS_OK) 563 if (WebPDecode (iter.fragment.bytes, iter.fragment.size, &config) != VP8_STATUS_OK)
464 { 564 {
465 g_object_unref (RETVAL); 565 g_object_unref (RETVAL);
466 RETVAL = 0; 566 RETVAL = 0;
467 goto err; 567 goto err_iter;
468 } 568 }
469 569
470 err: 570 err_iter:
571 WebPDemuxReleaseIterator (&iter);
572 err_demux:
573 WebPDemuxDelete (demux);
574
471 perlinterp_acquire (); 575 perlinterp_acquire ();
472#else 576#else
473 croak ("load_webp: webp not enabled at compile time"); 577 croak ("load_webp: webp not enabled at compile time");
578#endif
579}
580 OUTPUT:
581 RETVAL
582
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 static void *runner_cache;
595 void *runner = 0;
596
597 RETVAL = 0;
598
599 if (runner_cache)
600 runner = runner_cache;
601 else
602 runner = JxlThreadParallelRunnerCreate (0, JxlThreadParallelRunnerDefaultNumWorkerThreads ());
603
604 runner_cache = 0;
605
606 perlinterp_release ();
607
608 dec = JxlDecoderCreate (0);
609
610 error = "JxlDecoderCreate failed";
611 if (!dec)
612 goto done;
613
614 status = JxlDecoderSetParallelRunner (dec, JxlThreadParallelRunner, runner);
615 error = "JxlDecoderSetParallelRunner failed";
616 if (status != JXL_DEC_SUCCESS)
617 goto done;
618
619 error = "JxlDecoderSubscribeEvents failed";
620 status = JxlDecoderSubscribeEvents (dec, JXL_DEC_BASIC_INFO | JXL_DEC_FULL_IMAGE);
621 if (status != JXL_DEC_SUCCESS)
622 goto done;
623
624 status = JxlDecoderSetInput (dec, next_in, avail_in);
625 error = "JxlDecoderSetInput failed";
626 if (status != JXL_DEC_SUCCESS)
627 goto done;
628
629 for (;;)
630 {
631 status = JxlDecoderProcessInput (dec);
632
633 switch (status)
634 {
635 case JXL_DEC_FULL_IMAGE:
636 error = 0;
637 goto done;
638
639 case JXL_DEC_ERROR:
640 error = "JxlDecoderProcessInput failed";
641 goto done;
642
643 case JXL_DEC_NEED_MORE_INPUT:
644 error = "incomplete file";
645 goto done;
646
647 case JXL_DEC_SUCCESS:
648 error = "incomplete decode";
649 goto done;
650
651 case JXL_DEC_BASIC_INFO:
652 {
653 status = JxlDecoderGetBasicInfo (dec, &info);
654 error = "JxlDecoderGetBasicInfo failed";
655 if (status != JXL_DEC_SUCCESS)
656 goto done;
657
658 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!info.alpha_bits, 8, info.xsize, info.ysize);
659 error = "unable to allocate pixbuf";
660 if (!RETVAL)
661 goto done;
662
663 JxlPixelFormat format = {
664 info.alpha_bits ? 4 : 3,
665 JXL_TYPE_UINT8,
666 JXL_NATIVE_ENDIAN,
667 gdk_pixbuf_get_rowstride (RETVAL)
668 };
669
670 // cannot use gdk_pixbuf_get_byte_length because that does
671 // not return the size of the buffer, but the size of the buffer without
672 // the last padding bytes. the internal buffer is rowstride * ysize,
673 // and this is what the jxl decoder needs. none of this is documented
674 // in either library, of course.
675
676 status = JxlDecoderSetImageOutBuffer (
677 dec,
678 &format,
679 gdk_pixbuf_get_pixels (RETVAL),
680 gdk_pixbuf_get_rowstride (RETVAL) * info.ysize
681 );
682 error = "JxlDecoderSetImageOutBuffer failed";
683 if (status != JXL_DEC_SUCCESS)
684 goto done;
685 }
686 break;
687
688 default:
689 error = "unexpected event";
690 goto done;
691 }
692 }
693
694 done:
695 if (dec)
696 JxlDecoderDestroy (dec);
697
698 perlinterp_acquire ();
699
700 if (runner_cache)
701 JxlThreadParallelRunnerDestroy (runner);
702
703 runner_cache = runner;
704
705 if (error)
706 {
707 if (RETVAL)
708 g_object_unref (RETVAL);
709
710 croak ("load_jxl: %s (status %d)", error, status);
711 }
712#else
713 croak ("load_jxl: jpeg-xl not enabled at compile time");
474#endif 714#endif
475} 715}
476 OUTPUT: 716 OUTPUT:
477 RETVAL 717 RETVAL
478 718
… …
504 g_object_unref ((gpointer)pb); 744 g_object_unref ((gpointer)pb);
505 745
506 perlinterp_acquire (); 746 perlinterp_acquire ();
507 XSRETURN_UNDEF; 747 XSRETURN_UNDEF;
508 } 748 }
749
750 if (!data_len)
751 longjmp (jerr.setjmp_buffer, 4);
509 752
510 jpeg_create_decompress (&cinfo); 753 jpeg_create_decompress (&cinfo);
511 cv_jpeg_mem_src (&cinfo, data, data_len); 754 cv_jpeg_mem_src (&cinfo, data, data_len);
512 755
513 jpeg_read_header (&cinfo, TRUE); 756 jpeg_read_header (&cinfo, TRUE);
… …
664 CODE: 907 CODE:
665{ 908{
666 STRLEN plen; 909 STRLEN plen;
667 U8 *path = (U8 *)SvPV (pathsv, plen); 910 U8 *path = (U8 *)SvPV (pathsv, plen);
668 U8 *pend = path + plen; 911 U8 *pend = path + plen;
669 U8 dst [plen * 6 * 3], *dstp = dst; 912 U8 dst [plen * 8 * 3], *dstp = dst;
670 913
671 while (path < pend) 914 while (path < pend)
672 { 915 {
673 U8 ch = *path; 916 U8 ch = *path;
674 917
… …
676 *dstp++ = *path++; 919 *dstp++ = *path++;
677 else if (ch >= 'A' && ch <= 'Z') 920 else if (ch >= 'A' && ch <= 'Z')
678 *dstp++ = *path++ + ('a' - 'A'); 921 *dstp++ = *path++ + ('a' - 'A');
679 else if (ch >= '0' && ch <= '9') 922 else if (ch >= '0' && ch <= '9')
680 { 923 {
924 /* version sort, up to 8 digits */
681 STRLEN el, nl = 0; 925 STRLEN el, nl = 0;
682 while (*path >= '0' && *path <= '9' && path < pend) 926 while (*path >= '0' && *path <= '9' && path < pend)
683 path++, nl++; 927 path++, nl++;
684 928
685 for (el = nl; el < 6; el++) 929 for (el = nl; el < 8; el++)
686 *dstp++ = '0'; 930 *dstp++ = '0';
687 931
688 memcpy (dstp, path - nl, nl); 932 memcpy (dstp, path - nl, nl);
689 dstp += nl; 933 dstp += nl;
690 } 934 }

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