… | |
… | |
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 | |
32 | typedef char *octet_string; |
43 | typedef char *octet_string; |
|
|
44 | |
|
|
45 | static magic_t magic_cookie[2]; /* !mime, mime */ |
33 | |
46 | |
34 | struct jpg_err_mgr |
47 | struct 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; |
38 | }; |
51 | }; |
39 | |
52 | |
40 | static void |
53 | static void |
41 | cv_error_exit (j_common_ptr cinfo) |
54 | cv_error_exit (j_common_ptr cinfo) |
42 | { |
55 | { |
|
|
56 | cinfo->err->output_message (cinfo); |
43 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
57 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
44 | } |
58 | } |
45 | |
59 | |
46 | static void |
60 | static void |
47 | cv_error_output (j_common_ptr cinfo) |
61 | cv_error_output (j_common_ptr cinfo) |
48 | { |
62 | { |
|
|
63 | char msg[JMSG_LENGTH_MAX]; |
|
|
64 | |
|
|
65 | cinfo->err->format_message (cinfo, msg); |
|
|
66 | |
|
|
67 | fprintf (stderr, "JPEG decoding error: %s\n", msg); |
49 | return; |
68 | return; |
50 | } |
69 | } |
51 | |
70 | |
52 | static void |
71 | static void |
53 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
72 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
… | |
… | |
150 | if (!--a85_cnt) |
169 | if (!--a85_cnt) |
151 | { |
170 | { |
152 | a85_cnt = 4; |
171 | a85_cnt = 4; |
153 | if (a85_val) |
172 | if (a85_val) |
154 | { |
173 | { |
155 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
174 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
156 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
175 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
157 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
176 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
158 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
177 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
159 | a85_ptr[0] = (a85_val ) + 33; |
178 | a85_ptr[0] = (a85_val ) + 33; |
160 | |
179 | |
161 | a85_ptr += 5; |
180 | a85_ptr += 5; |
162 | } |
181 | } |
… | |
… | |
185 | |
204 | |
186 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
205 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
187 | } |
206 | } |
188 | |
207 | |
189 | ///////////////////////////////////////////////////////////////////////////// |
208 | ///////////////////////////////////////////////////////////////////////////// |
|
|
209 | // memory source for libjpeg |
|
|
210 | |
|
|
211 | static void cv_ms_init (j_decompress_ptr cinfo) |
|
|
212 | { |
|
|
213 | } |
|
|
214 | |
|
|
215 | static void cv_ms_term (j_decompress_ptr cinfo) |
|
|
216 | { |
|
|
217 | } |
|
|
218 | |
|
|
219 | static 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 | |
|
|
235 | static 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 | |
|
|
243 | static 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 | |
|
|
267 | struct bmff_box |
|
|
268 | { |
|
|
269 | char type[4]; |
|
|
270 | const uint8_t *ptr; |
|
|
271 | size_t size; |
|
|
272 | }; |
|
|
273 | |
|
|
274 | static int |
|
|
275 | bmff_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 | ///////////////////////////////////////////////////////////////////////////// |
190 | |
303 | |
191 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
304 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
192 | |
305 | |
193 | PROTOTYPES: ENABLE |
306 | PROTOTYPES: ENABLE |
194 | |
307 | |
|
|
308 | # calculate the common prefix length of two strings |
195 | # missing function in perl. really :) |
309 | # missing function in perl. really :) |
196 | int |
310 | int |
197 | common_prefix_length (a, b) |
311 | common_prefix_length (a, b) |
198 | unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); |
312 | unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); |
199 | unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); |
313 | unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); |
… | |
… | |
208 | |
322 | |
209 | OUTPUT: |
323 | OUTPUT: |
210 | RETVAL |
324 | RETVAL |
211 | |
325 | |
212 | const char * |
326 | const char * |
213 | magic (octet_string path) |
327 | magic (SV *path_or_data) |
|
|
328 | ALIAS: |
|
|
329 | magic = 0 |
|
|
330 | magic_mime = 1 |
|
|
331 | magic_buffer = 2 |
|
|
332 | magic_buffer_mime = 3 |
214 | CODE: |
333 | CODE: |
215 | { |
334 | { |
216 | static magic_t cookie; |
335 | STRLEN len; |
|
|
336 | char *data = SvPVbyte (path_or_data, len); |
217 | |
337 | |
218 | if (!cookie) |
338 | if (!magic_cookie[0]) |
219 | { |
339 | { |
220 | cookie = magic_open (MAGIC_SYMLINK); |
340 | magic_cookie[0] = magic_open (MAGIC_SYMLINK); |
221 | |
341 | magic_cookie[1] = magic_open (MAGIC_SYMLINK | MAGIC_MIME_TYPE); |
222 | if (cookie) |
|
|
223 | magic_load (cookie, 0); |
342 | magic_load (magic_cookie[0], 0); |
224 | else |
|
|
225 | XSRETURN_UNDEF; |
|
|
226 | } |
|
|
227 | |
|
|
228 | RETVAL = magic_file (cookie, path); |
|
|
229 | } |
|
|
230 | OUTPUT: |
|
|
231 | RETVAL |
|
|
232 | |
|
|
233 | const char * |
|
|
234 | magic_mime (octet_string path) |
|
|
235 | CODE: |
|
|
236 | { |
|
|
237 | static magic_t cookie; |
|
|
238 | |
|
|
239 | if (!cookie) |
|
|
240 | { |
|
|
241 | cookie = magic_open (MAGIC_MIME | MAGIC_SYMLINK); |
|
|
242 | |
|
|
243 | if (cookie) |
|
|
244 | magic_load (cookie, 0); |
343 | magic_load (magic_cookie[1], 0); |
245 | else |
|
|
246 | XSRETURN_UNDEF; |
|
|
247 | } |
344 | } |
248 | |
345 | |
249 | perlinterp_release (); |
346 | perlinterp_release (); |
250 | 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 | |
251 | perlinterp_acquire (); |
352 | perlinterp_acquire (); |
252 | } |
353 | } |
253 | OUTPUT: |
354 | OUTPUT: |
254 | RETVAL |
355 | RETVAL |
255 | |
356 | |
… | |
… | |
310 | : angle); |
411 | : angle); |
311 | perlinterp_acquire (); |
412 | perlinterp_acquire (); |
312 | OUTPUT: |
413 | OUTPUT: |
313 | RETVAL |
414 | RETVAL |
314 | |
415 | |
|
|
416 | const char * |
|
|
417 | filetype (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 | |
315 | GdkPixbuf_noinc * |
462 | GdkPixbuf_noinc * |
|
|
463 | decode_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 | |
|
|
551 | GdkPixbuf_noinc * |
|
|
552 | decode_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 | |
|
|
663 | GdkPixbuf_noinc * |
316 | load_jpeg (SV *path, int thumbnail = 0, int iw = 0, int ih = 0) |
664 | decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
317 | CODE: |
665 | CODE: |
318 | { |
666 | { |
319 | struct jpeg_decompress_struct cinfo; |
667 | struct jpeg_decompress_struct cinfo; |
320 | struct jpg_err_mgr jerr; |
668 | struct jpg_err_mgr jerr; |
321 | guchar *data; |
|
|
322 | int rs; |
669 | int rs; |
323 | FILE *fp; |
|
|
324 | volatile GdkPixbuf *pb = 0; |
670 | volatile GdkPixbuf *pb = 0; |
|
|
671 | STRLEN data_len; |
|
|
672 | guchar *data = SvPVbyte (image_data, data_len); |
325 | |
673 | |
326 | RETVAL = 0; |
674 | RETVAL = 0; |
327 | |
|
|
328 | fp = fopen (SvPVbyte_nolen (path), "rb"); |
|
|
329 | |
|
|
330 | if (!fp) |
|
|
331 | XSRETURN_UNDEF; |
|
|
332 | |
675 | |
333 | perlinterp_release (); |
676 | perlinterp_release (); |
334 | |
677 | |
335 | cinfo.err = jpeg_std_error (&jerr.err); |
678 | cinfo.err = jpeg_std_error (&jerr.err); |
336 | |
679 | |
337 | jerr.err.error_exit = cv_error_exit; |
680 | jerr.err.error_exit = cv_error_exit; |
338 | jerr.err.output_message = cv_error_output; |
681 | jerr.err.output_message = cv_error_output; |
339 | |
682 | |
340 | if ((rs = setjmp (jerr.setjmp_buffer))) |
683 | if ((rs = setjmp (jerr.setjmp_buffer))) |
341 | { |
684 | { |
342 | fclose (fp); |
|
|
343 | jpeg_destroy_decompress (&cinfo); |
685 | jpeg_destroy_decompress (&cinfo); |
344 | |
686 | |
345 | if (pb) |
687 | if (pb) |
346 | g_object_unref ((gpointer)pb); |
688 | g_object_unref ((gpointer)pb); |
347 | |
689 | |
348 | perlinterp_acquire (); |
690 | perlinterp_acquire (); |
349 | XSRETURN_UNDEF; |
691 | XSRETURN_UNDEF; |
350 | } |
692 | } |
351 | |
693 | |
|
|
694 | if (!data_len) |
|
|
695 | longjmp (jerr.setjmp_buffer, 4); |
|
|
696 | |
352 | jpeg_create_decompress (&cinfo); |
697 | jpeg_create_decompress (&cinfo); |
|
|
698 | cv_jpeg_mem_src (&cinfo, data, data_len); |
353 | |
699 | |
354 | jpeg_stdio_src (&cinfo, fp); |
|
|
355 | jpeg_read_header (&cinfo, TRUE); |
700 | jpeg_read_header (&cinfo, TRUE); |
356 | |
701 | |
357 | cinfo.dct_method = JDCT_DEFAULT; |
702 | cinfo.dct_method = JDCT_DEFAULT; |
358 | 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 */ |
359 | cinfo.do_block_smoothing = FALSE; |
704 | cinfo.do_block_smoothing = FALSE; |
… | |
… | |
377 | cinfo.scale_denom <<= 1; |
722 | cinfo.scale_denom <<= 1; |
378 | jpeg_calc_output_dimensions (&cinfo); |
723 | jpeg_calc_output_dimensions (&cinfo); |
379 | } |
724 | } |
380 | } |
725 | } |
381 | |
726 | |
|
|
727 | if (cinfo.output_components != 3) |
|
|
728 | longjmp (jerr.setjmp_buffer, 3); |
|
|
729 | |
|
|
730 | if (cinfo.jpeg_color_space == JCS_YCCK || cinfo.jpeg_color_space == JCS_CMYK) |
|
|
731 | { |
|
|
732 | cinfo.out_color_space = JCS_CMYK; |
|
|
733 | cinfo.output_components = 4; |
|
|
734 | } |
|
|
735 | |
382 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height); |
736 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, cinfo.output_components == 4, 8, cinfo.output_width, cinfo.output_height); |
383 | if (!RETVAL) |
737 | if (!RETVAL) |
384 | longjmp (jerr.setjmp_buffer, 2); |
738 | longjmp (jerr.setjmp_buffer, 2); |
385 | |
739 | |
386 | data = gdk_pixbuf_get_pixels (RETVAL); |
740 | data = gdk_pixbuf_get_pixels (RETVAL); |
387 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
741 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
388 | |
|
|
389 | if (cinfo.output_components != 3) |
|
|
390 | longjmp (jerr.setjmp_buffer, 3); |
|
|
391 | |
742 | |
392 | jpeg_start_decompress (&cinfo); |
743 | jpeg_start_decompress (&cinfo); |
393 | |
744 | |
394 | while (cinfo.output_scanline < cinfo.output_height) |
745 | while (cinfo.output_scanline < cinfo.output_height) |
395 | { |
746 | { |
… | |
… | |
402 | rp [3] = (guchar *)rp [2] + rs; |
753 | rp [3] = (guchar *)rp [2] + rs; |
403 | |
754 | |
404 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
755 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
405 | } |
756 | } |
406 | |
757 | |
|
|
758 | if (cinfo.out_color_space == JCS_CMYK) |
|
|
759 | { |
|
|
760 | guchar *end = data + cinfo.output_height * rs; |
|
|
761 | |
|
|
762 | while (data < end) |
|
|
763 | { |
|
|
764 | U32 c = data [0]; |
|
|
765 | U32 m = data [1]; |
|
|
766 | U32 y = data [2]; |
|
|
767 | U32 k = data [3]; |
|
|
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 | |
|
|
778 | data [0] = (c * k + 0x80) / 0xff; |
|
|
779 | data [1] = (m * k + 0x80) / 0xff; |
|
|
780 | data [2] = (y * k + 0x80) / 0xff; |
|
|
781 | data [3] = 0xff; |
|
|
782 | |
|
|
783 | data += 4; |
|
|
784 | } |
|
|
785 | } |
|
|
786 | |
407 | jpeg_finish_decompress (&cinfo); |
787 | jpeg_finish_decompress (&cinfo); |
408 | fclose (fp); |
|
|
409 | jpeg_destroy_decompress (&cinfo); |
788 | jpeg_destroy_decompress (&cinfo); |
410 | perlinterp_acquire (); |
789 | perlinterp_acquire (); |
411 | } |
790 | } |
412 | OUTPUT: |
791 | OUTPUT: |
413 | RETVAL |
792 | RETVAL |