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Comparing CV/CV.xs (file contents):
Revision 1.48 by root, Wed May 24 05:00:57 2017 UTC vs.
Revision 1.60 by root, Thu Jul 15 00:41:44 2021 UTC

7#include <math.h> 7#include <math.h>
8 8
9#include <magic.h> 9#include <magic.h>
10 10
11#include <jpeglib.h> 11#include <jpeglib.h>
12#include <jerror.h>
13
12#include <glib.h> 14#include <glib.h>
13#include <gtk/gtk.h> 15#include <gtk/gtk.h>
16#include <gdk/gdkx.h>
14#include <gdk-pixbuf/gdk-pixbuf.h> 17#include <gdk-pixbuf/gdk-pixbuf.h>
15 18
16#include <gperl.h> 19#include <gperl.h>
17#include <gtk2perl.h> 20#include <gtk2perl.h>
18 21
19#include <assert.h> 22#include <assert.h>
20 23
24#if WEBP
25#include <webp/demux.h>
26#include <webp/decode.h>
27#endif
28
29#if JXL
30#include <jxl/decode.h>
31#include "jxl/thread_parallel_runner.h"
32#endif
33
21#include "perlmulticore.h" 34#include "perlmulticore.h"
22 35
23#define IW 80 /* MUST match Schnauzer.pm! */ 36#define IW 80 /* MUST match Schnauzer.pm! */
24#define IH 60 /* MUST match Schnauzer.pm! */ 37#define IH 60 /* MUST match Schnauzer.pm! */
25 38
26#define RAND (seed = (seed + 7141) * 54773 % 134456)
27
28#define LINELENGTH 240 39#define LINELENGTH 240
29 40
30#define ELLIPSIS "\xe2\x80\xa6" 41#define ELLIPSIS "\xe2\x80\xa6"
31 42
32typedef char *octet_string; 43typedef char *octet_string;
44
45static magic_t magic_cookie[2]; /* !mime, mime */
33 46
34struct jpg_err_mgr 47struct jpg_err_mgr
35{ 48{
36 struct jpeg_error_mgr err; 49 struct jpeg_error_mgr err;
37 jmp_buf setjmp_buffer; 50 jmp_buf setjmp_buffer;
156 if (!--a85_cnt) 169 if (!--a85_cnt)
157 { 170 {
158 a85_cnt = 4; 171 a85_cnt = 4;
159 if (a85_val) 172 if (a85_val)
160 { 173 {
161 a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; 174 a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85;
162 a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; 175 a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85;
163 a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; 176 a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85;
164 a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; 177 a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85;
165 a85_ptr[0] = (a85_val ) + 33; 178 a85_ptr[0] = (a85_val ) + 33;
166 179
167 a85_ptr += 5; 180 a85_ptr += 5;
168 } 181 }
191 204
192 PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); 205 PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);
193} 206}
194 207
195///////////////////////////////////////////////////////////////////////////// 208/////////////////////////////////////////////////////////////////////////////
209// memory source for libjpeg
210
211static void cv_ms_init (j_decompress_ptr cinfo)
212{
213}
214
215static void cv_ms_term (j_decompress_ptr cinfo)
216{
217}
218
219static boolean cv_ms_fill (j_decompress_ptr cinfo)
220{
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);
231
232 return TRUE;
233}
234
235static void cv_ms_skip (j_decompress_ptr cinfo, long num_bytes)
236{
237 struct jpeg_source_mgr *src = (struct jpeg_source_mgr *)cinfo->src;
238
239 src->next_input_byte += num_bytes;
240 src->bytes_in_buffer -= num_bytes;
241}
242
243static void cv_jpeg_mem_src (j_decompress_ptr cinfo, void *buf, size_t buflen)
244{
245 struct jpeg_source_mgr *src;
246
247 if (!cinfo->src)
248 cinfo->src = (struct jpeg_source_mgr *)
249 (*cinfo->mem->alloc_small) (
250 (j_common_ptr) cinfo, JPOOL_PERMANENT, sizeof (struct jpeg_source_mgr)
251 );
252
253 src = (struct jpeg_source_mgr *)cinfo->src;
254 src->init_source = cv_ms_init;
255 src->fill_input_buffer = cv_ms_fill;
256 src->skip_input_data = cv_ms_skip;
257 src->resync_to_restart = jpeg_resync_to_restart;
258 src->term_source = cv_ms_term;
259 src->next_input_byte = (JOCTET *)buf;
260 src->bytes_in_buffer = buflen;
261}
262
263/////////////////////////////////////////////////////////////////////////////
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/////////////////////////////////////////////////////////////////////////////
196 303
197MODULE = Gtk2::CV PACKAGE = Gtk2::CV 304MODULE = Gtk2::CV PACKAGE = Gtk2::CV
198 305
199PROTOTYPES: ENABLE 306PROTOTYPES: ENABLE
200 307
308# calculate the common prefix length of two strings
201# missing function in perl. really :) 309# missing function in perl. really :)
202int 310int
203common_prefix_length (a, b) 311common_prefix_length (a, b)
204 unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); 312 unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg);
205 unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); 313 unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg);
214 322
215 OUTPUT: 323 OUTPUT:
216 RETVAL 324 RETVAL
217 325
218const char * 326const char *
219magic (octet_string path) 327magic (SV *path_or_data)
328 ALIAS:
329 magic = 0
330 magic_mime = 1
331 magic_buffer = 2
332 magic_buffer_mime = 3
220 CODE: 333 CODE:
221{ 334{
222 static magic_t cookie; 335 STRLEN len;
336 char *data = SvPVbyte (path_or_data, len);
223 337
224 if (!cookie) 338 if (!magic_cookie[0])
225 { 339 {
226 cookie = magic_open (MAGIC_SYMLINK); 340 magic_cookie[0] = magic_open (MAGIC_SYMLINK);
227 341 magic_cookie[1] = magic_open (MAGIC_SYMLINK | MAGIC_MIME_TYPE);
228 if (cookie)
229 magic_load (cookie, 0); 342 magic_load (magic_cookie[0], 0);
230 else
231 XSRETURN_UNDEF;
232 }
233
234 RETVAL = magic_file (cookie, path);
235}
236 OUTPUT:
237 RETVAL
238
239const char *
240magic_mime (octet_string path)
241 CODE:
242{
243 static magic_t cookie;
244
245 if (!cookie)
246 {
247 cookie = magic_open (MAGIC_MIME | MAGIC_SYMLINK);
248
249 if (cookie)
250 magic_load (cookie, 0); 343 magic_load (magic_cookie[1], 0);
251 else
252 XSRETURN_UNDEF;
253 } 344 }
254 345
255 perlinterp_release (); 346 perlinterp_release ();
256 RETVAL = magic_file (cookie, path); 347
348 RETVAL = ix & 2
349 ? magic_buffer (magic_cookie[ix & 1], data, len)
350 : magic_file (magic_cookie[ix & 1], data);
351
257 perlinterp_acquire (); 352 perlinterp_acquire ();
258} 353}
259 OUTPUT: 354 OUTPUT:
260 RETVAL 355 RETVAL
261 356
316 : angle); 411 : angle);
317 perlinterp_acquire (); 412 perlinterp_acquire ();
318 OUTPUT: 413 OUTPUT:
319 RETVAL 414 RETVAL
320 415
416const char *
417filetype (SV *image_data)
418 CODE:
419{
420 STRLEN 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,
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 };
428
429 if (data_len >= 20
430 && data[0] == 0xff
431 && data[1] == 0xd8
432 && data[2] == 0xff)
433 RETVAL = "image/jpeg";
434 else if (data_len >= 12
435 && data[ 0] == (U8)'R'
436 && data[ 1] == (U8)'I'
437 && data[ 2] == (U8)'F'
438 && data[ 3] == (U8)'F'
439 && data[ 8] == (U8)'W'
440 && data[ 9] == (U8)'E'
441 && data[10] == (U8)'B'
442 && data[11] == (U8)'P')
443 RETVAL = "image/webp";
444 else if (data_len >= 16
445 && data[ 0] == 0x89
446 && data[ 1] == (U8)'P'
447 && data[ 2] == (U8)'N'
448 && data[ 3] == (U8)'G'
449 && data[ 4] == 0x0d
450 && data[ 5] == 0x0a
451 && data[ 6] == 0x1a
452 && data[ 7] == 0x0a)
453 RETVAL = "image/png";
454 else if (data_len >= sizeof (jxl_header) && memcmp (data, jxl_header, sizeof (jxl_header)) == 0)
455 RETVAL = "image/jxl";
456 else
457 XSRETURN_UNDEF;
458}
459 OUTPUT:
460 RETVAL
461
321GdkPixbuf_noinc * 462GdkPixbuf_noinc *
463decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
464 CODE:
465{
466#if WEBP
467 STRLEN data_size;
468 int alpha;
469 WebPData data;
470 WebPDemuxer *demux;
471 WebPIterator iter;
472 WebPDecoderConfig config;
473 int inw, inh;
474
475 data.bytes = (uint8_t *)SvPVbyte (image_data, data_size);
476 data.size = data_size;
477
478 perlinterp_release ();
479
480 RETVAL = 0;
481
482 if (!(demux = WebPDemux (&data)))
483 goto err_demux;
484
485 if (!WebPDemuxGetFrame (demux, 1, &iter))
486 goto err_iter;
487
488 if (!WebPInitDecoderConfig (&config))
489 goto err_iter;
490
491 config.options.use_threads = 1;
492
493 if (WebPGetFeatures (iter.fragment.bytes, iter.fragment.size, &config.input) != VP8_STATUS_OK)
494 goto err_iter;
495
496 inw = config.input.width;
497 inh = config.input.height;
498
499 if (thumbnail)
500 {
501 if (inw * ih > inh * iw)
502 ih = (iw * inh + inw - 1) / inw;
503 else
504 iw = (ih * inw + inh - 1) / inh;
505
506 config.options.bypass_filtering = 1;
507 config.options.no_fancy_upsampling = 1;
508
509 config.options.use_scaling = 1;
510 config.options.scaled_width = iw;
511 config.options.scaled_height = ih;
512 }
513 else
514 {
515 iw = inw;
516 ih = inh;
517 }
518
519 alpha = !!config.input.has_alpha;
520
521 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, alpha, 8, iw, ih);
522 if (!RETVAL)
523 goto err_iter;
524
525 config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB;
526 config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL);
527 config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL);
528 config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL);
529 config.output.is_external_memory = 1;
530
531 if (WebPDecode (iter.fragment.bytes, iter.fragment.size, &config) != VP8_STATUS_OK)
532 {
533 g_object_unref (RETVAL);
534 RETVAL = 0;
535 goto err_iter;
536 }
537
538 err_iter:
539 WebPDemuxReleaseIterator (&iter);
540 err_demux:
541 WebPDemuxDelete (demux);
542
543 perlinterp_acquire ();
544#else
545 croak ("load_webp: webp not enabled at compile time");
546#endif
547}
548 OUTPUT:
549 RETVAL
550
551GdkPixbuf_noinc *
552decode_jxl (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
553 CODE:
554{
555#if JXL
556 JxlDecoder *dec = JxlDecoderCreate (0);
557 JxlBasicInfo info;
558 const uint8_t *next_in = (uint8_t *)SvPVbyte_nolen (image_data);
559 size_t avail_in = SvCUR (image_data);
560 const char *error = 0;
561 void *runner = 0;
562 struct bmff_box box;
563
564 perlinterp_release ();
565
566 RETVAL = 0;
567
568 error = "JxlDecoderCreate failed";
569 if (!dec)
570 goto done;
571
572 runner = JxlThreadParallelRunnerCreate (0, JxlThreadParallelRunnerDefaultNumWorkerThreads ());
573
574 error = "JxlDecoderSetParallelRunner failed";
575 if (JxlDecoderSetParallelRunner (dec, JxlThreadParallelRunner, runner) != JXL_DEC_SUCCESS)
576 goto done;
577
578 error = "JxlDecoderSubscribeEvents failed";
579 if (JxlDecoderSubscribeEvents (dec, JXL_DEC_FULL_IMAGE | JXL_DEC_BASIC_INFO) != JXL_DEC_SUCCESS)
580 goto done;
581
582 error = "JxlDecoderSetInput failed";
583 if (JxlDecoderSetInput (dec, next_in, avail_in) != JXL_DEC_SUCCESS)
584 goto done;
585
586 for (;;)
587 {
588 JxlDecoderStatus status = JxlDecoderProcessInput (dec);
589
590 printf ("status %d\n",status);
591
592 switch (status)
593 {
594 case JXL_DEC_ERROR:
595 error = "JxlDecoderProcessInput failed";
596 goto done;
597
598 case JXL_DEC_NEED_MORE_INPUT:
599 error = "incomplete file";
600 goto done;
601
602 case JXL_DEC_SUCCESS:
603 goto done;
604
605 case JXL_DEC_NEED_IMAGE_OUT_BUFFER:
606 {
607 error = "JxlDecoderGetBasicInfo failed";
608 if (JxlDecoderGetBasicInfo (dec, &info) != JXL_DEC_SUCCESS)
609 goto done;
610
611 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!info.alpha_bits, 8, info.xsize, info.ysize);
612 error = "unable to allocate pixbuf";
613 if (!RETVAL)
614 goto done;
615
616 JxlPixelFormat format = {
617 info.alpha_bits ? 4 : 3,
618 JXL_TYPE_UINT8,
619 JXL_NATIVE_ENDIAN,
620 gdk_pixbuf_get_rowstride (RETVAL)
621 };
622
623 error = "JxlDecoderSetImageOutBuffer failed";
624 if (JxlDecoderSetImageOutBuffer (
625 dec,
626 &format,
627 gdk_pixbuf_get_pixels (RETVAL),
628 gdk_pixbuf_get_byte_length (RETVAL)
629 ) != JXL_DEC_SUCCESS)
630 goto done;
631 }
632 break;
633
634 default:
635 error = "unexpected event";
636 goto done;
637 }
638 }
639
640 done:
641 if (dec)
642 JxlDecoderDestroy (dec);
643
644 if (runner)
645 JxlThreadParallelRunnerDestroy (runner);
646
647 perlinterp_acquire ();
648
649 if (error)
650 {
651 if (RETVAL)
652 g_object_unref (RETVAL);
653
654 croak ("load_jxl: %s", error);
655 }
656#else
657 croak ("load_jxl: jpeg-xl not enabled at compile time");
658#endif
659}
660 OUTPUT:
661 RETVAL
662
663GdkPixbuf_noinc *
322load_jpeg (SV *path, int thumbnail = 0, int iw = 0, int ih = 0) 664decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
323 CODE: 665 CODE:
324{ 666{
325 struct jpeg_decompress_struct cinfo; 667 struct jpeg_decompress_struct cinfo;
326 struct jpg_err_mgr jerr; 668 struct jpg_err_mgr jerr;
327 guchar *data;
328 int rs; 669 int rs;
329 FILE *fp;
330 volatile GdkPixbuf *pb = 0; 670 volatile GdkPixbuf *pb = 0;
671 STRLEN data_len;
672 guchar *data = SvPVbyte (image_data, data_len);
331 673
332 RETVAL = 0; 674 RETVAL = 0;
333
334 fp = fopen (SvPVbyte_nolen (path), "rb");
335
336 if (!fp)
337 XSRETURN_UNDEF;
338 675
339 perlinterp_release (); 676 perlinterp_release ();
340 677
341 cinfo.err = jpeg_std_error (&jerr.err); 678 cinfo.err = jpeg_std_error (&jerr.err);
342 679
343 jerr.err.error_exit = cv_error_exit; 680 jerr.err.error_exit = cv_error_exit;
344 jerr.err.output_message = cv_error_output; 681 jerr.err.output_message = cv_error_output;
345 682
346 if ((rs = setjmp (jerr.setjmp_buffer))) 683 if ((rs = setjmp (jerr.setjmp_buffer)))
347 { 684 {
348 fclose (fp);
349 jpeg_destroy_decompress (&cinfo); 685 jpeg_destroy_decompress (&cinfo);
350 686
351 if (pb) 687 if (pb)
352 g_object_unref ((gpointer)pb); 688 g_object_unref ((gpointer)pb);
353 689
354 perlinterp_acquire (); 690 perlinterp_acquire ();
355 XSRETURN_UNDEF; 691 XSRETURN_UNDEF;
356 } 692 }
357 693
694 if (!data_len)
695 longjmp (jerr.setjmp_buffer, 4);
696
358 jpeg_create_decompress (&cinfo); 697 jpeg_create_decompress (&cinfo);
698 cv_jpeg_mem_src (&cinfo, data, data_len);
359 699
360 jpeg_stdio_src (&cinfo, fp);
361 jpeg_read_header (&cinfo, TRUE); 700 jpeg_read_header (&cinfo, TRUE);
362 701
363 cinfo.dct_method = JDCT_DEFAULT; 702 cinfo.dct_method = JDCT_DEFAULT;
364 cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ 703 cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */
365 cinfo.do_block_smoothing = FALSE; 704 cinfo.do_block_smoothing = FALSE;
425 U32 c = data [0]; 764 U32 c = data [0];
426 U32 m = data [1]; 765 U32 m = data [1];
427 U32 y = data [2]; 766 U32 y = data [2];
428 U32 k = data [3]; 767 U32 k = data [3];
429 768
769 if (0)
770 if (cinfo.Adobe_transform == 2)
771 {
772 c ^= 0xff;
773 m ^= 0xff;
774 y ^= 0xff;
775 k ^= 0xff;
776 }
777
430 data [0] = c * k / 255; 778 data [0] = (c * k + 0x80) / 0xff;
431 data [1] = m * k / 255; 779 data [1] = (m * k + 0x80) / 0xff;
432 data [2] = y * k / 255; 780 data [2] = (y * k + 0x80) / 0xff;
433 data [3] = 255; 781 data [3] = 0xff;
434 782
435 data += 4; 783 data += 4;
436 } 784 }
437 } 785 }
438 786
439 jpeg_finish_decompress (&cinfo); 787 jpeg_finish_decompress (&cinfo);
440 fclose (fp);
441 jpeg_destroy_decompress (&cinfo); 788 jpeg_destroy_decompress (&cinfo);
442 perlinterp_acquire (); 789 perlinterp_acquire ();
443} 790}
444 OUTPUT: 791 OUTPUT:
445 RETVAL 792 RETVAL
504 CODE: 851 CODE:
505{ 852{
506 STRLEN plen; 853 STRLEN plen;
507 U8 *path = (U8 *)SvPV (pathsv, plen); 854 U8 *path = (U8 *)SvPV (pathsv, plen);
508 U8 *pend = path + plen; 855 U8 *pend = path + plen;
509 U8 dst [plen * 6 * 3], *dstp = dst; 856 U8 dst [plen * 8 * 3], *dstp = dst;
510 857
511 while (path < pend) 858 while (path < pend)
512 { 859 {
513 U8 ch = *path; 860 U8 ch = *path;
514 861
516 *dstp++ = *path++; 863 *dstp++ = *path++;
517 else if (ch >= 'A' && ch <= 'Z') 864 else if (ch >= 'A' && ch <= 'Z')
518 *dstp++ = *path++ + ('a' - 'A'); 865 *dstp++ = *path++ + ('a' - 'A');
519 else if (ch >= '0' && ch <= '9') 866 else if (ch >= '0' && ch <= '9')
520 { 867 {
868 /* version sort, up to 8 digits */
521 STRLEN el, nl = 0; 869 STRLEN el, nl = 0;
522 while (*path >= '0' && *path <= '9' && path < pend) 870 while (*path >= '0' && *path <= '9' && path < pend)
523 path++, nl++; 871 path++, nl++;
524 872
525 for (el = nl; el < 6; el++) 873 for (el = nl; el < 8; el++)
526 *dstp++ = '0'; 874 *dstp++ = '0';
527 875
528 memcpy (dstp, path - nl, nl); 876 memcpy (dstp, path - nl, nl);
529 dstp += nl; 877 dstp += nl;
530 } 878 }

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