… | |
… | |
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; |
… | |
… | |
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 | |
|
|
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 | ///////////////////////////////////////////////////////////////////////////// |
196 | |
303 | |
197 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
304 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
198 | |
305 | |
199 | PROTOTYPES: ENABLE |
306 | PROTOTYPES: ENABLE |
200 | |
307 | |
|
|
308 | # calculate the common prefix length of two strings |
201 | # missing function in perl. really :) |
309 | # missing function in perl. really :) |
202 | int |
310 | int |
203 | common_prefix_length (a, b) |
311 | common_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 | |
218 | const char * |
326 | const char * |
219 | 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 |
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 | |
|
|
239 | const char * |
|
|
240 | magic_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 | |
|
|
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 | |
321 | 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 * |
322 | 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) |
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 | } |