… | |
… | |
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 | |
21 | #include "perlmulticore.h" |
29 | #include "perlmulticore.h" |
22 | |
30 | |
23 | #define IW 80 /* MUST match Schnauzer.pm! */ |
31 | #define IW 80 /* MUST match Schnauzer.pm! */ |
24 | #define IH 60 /* MUST match Schnauzer.pm! */ |
32 | #define IH 60 /* MUST match Schnauzer.pm! */ |
25 | |
33 | |
… | |
… | |
28 | #define LINELENGTH 240 |
36 | #define LINELENGTH 240 |
29 | |
37 | |
30 | #define ELLIPSIS "\xe2\x80\xa6" |
38 | #define ELLIPSIS "\xe2\x80\xa6" |
31 | |
39 | |
32 | typedef char *octet_string; |
40 | typedef char *octet_string; |
|
|
41 | |
|
|
42 | static magic_t magic_cookie[2]; /* !mime, mime */ |
33 | |
43 | |
34 | struct jpg_err_mgr |
44 | struct jpg_err_mgr |
35 | { |
45 | { |
36 | struct jpeg_error_mgr err; |
46 | struct jpeg_error_mgr err; |
37 | jmp_buf setjmp_buffer; |
47 | jmp_buf setjmp_buffer; |
38 | }; |
48 | }; |
39 | |
49 | |
40 | static void |
50 | static void |
41 | cv_error_exit (j_common_ptr cinfo) |
51 | cv_error_exit (j_common_ptr cinfo) |
42 | { |
52 | { |
|
|
53 | cinfo->err->output_message (cinfo); |
43 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
54 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
44 | } |
55 | } |
45 | |
56 | |
46 | static void |
57 | static void |
47 | cv_error_output (j_common_ptr cinfo) |
58 | cv_error_output (j_common_ptr cinfo) |
48 | { |
59 | { |
|
|
60 | char msg[JMSG_LENGTH_MAX]; |
|
|
61 | |
|
|
62 | cinfo->err->format_message (cinfo, msg); |
|
|
63 | |
|
|
64 | fprintf (stderr, "JPEG decoding error: %s\n", msg); |
49 | return; |
65 | return; |
50 | } |
66 | } |
51 | |
67 | |
52 | static void |
68 | static void |
53 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
69 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
… | |
… | |
150 | if (!--a85_cnt) |
166 | if (!--a85_cnt) |
151 | { |
167 | { |
152 | a85_cnt = 4; |
168 | a85_cnt = 4; |
153 | if (a85_val) |
169 | if (a85_val) |
154 | { |
170 | { |
155 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
171 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
156 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
172 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
157 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
173 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
158 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
174 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
159 | a85_ptr[0] = (a85_val ) + 33; |
175 | a85_ptr[0] = (a85_val ) + 33; |
160 | |
176 | |
161 | a85_ptr += 5; |
177 | a85_ptr += 5; |
162 | } |
178 | } |
… | |
… | |
185 | |
201 | |
186 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
202 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
187 | } |
203 | } |
188 | |
204 | |
189 | ///////////////////////////////////////////////////////////////////////////// |
205 | ///////////////////////////////////////////////////////////////////////////// |
|
|
206 | // memory source for libjpeg |
|
|
207 | |
|
|
208 | static void cv_ms_init (j_decompress_ptr cinfo) |
|
|
209 | { |
|
|
210 | } |
|
|
211 | |
|
|
212 | static void cv_ms_term (j_decompress_ptr cinfo) |
|
|
213 | { |
|
|
214 | } |
|
|
215 | |
|
|
216 | static boolean cv_ms_fill (j_decompress_ptr cinfo) |
|
|
217 | { |
|
|
218 | // unexpected EOF, warn and generate fake EOI marker |
|
|
219 | |
|
|
220 | WARNMS (cinfo, JWRN_JPEG_EOF); |
|
|
221 | |
|
|
222 | struct jpeg_source_mgr *src = (struct jpeg_source_mgr *)cinfo->src; |
|
|
223 | |
|
|
224 | static const JOCTET eoi[] = { 0xFF, JPEG_EOI }; |
|
|
225 | |
|
|
226 | src->next_input_byte = eoi; |
|
|
227 | src->bytes_in_buffer = sizeof (eoi); |
|
|
228 | |
|
|
229 | return TRUE; |
|
|
230 | } |
|
|
231 | |
|
|
232 | static void cv_ms_skip (j_decompress_ptr cinfo, long num_bytes) |
|
|
233 | { |
|
|
234 | struct jpeg_source_mgr *src = (struct jpeg_source_mgr *)cinfo->src; |
|
|
235 | |
|
|
236 | src->next_input_byte += num_bytes; |
|
|
237 | src->bytes_in_buffer -= num_bytes; |
|
|
238 | } |
|
|
239 | |
|
|
240 | static void cv_jpeg_mem_src (j_decompress_ptr cinfo, void *buf, size_t buflen) |
|
|
241 | { |
|
|
242 | struct jpeg_source_mgr *src; |
|
|
243 | |
|
|
244 | if (!cinfo->src) |
|
|
245 | cinfo->src = (struct jpeg_source_mgr *) |
|
|
246 | (*cinfo->mem->alloc_small) ( |
|
|
247 | (j_common_ptr) cinfo, JPOOL_PERMANENT, sizeof (struct jpeg_source_mgr) |
|
|
248 | ); |
|
|
249 | |
|
|
250 | src = (struct jpeg_source_mgr *)cinfo->src; |
|
|
251 | src->init_source = cv_ms_init; |
|
|
252 | src->fill_input_buffer = cv_ms_fill; |
|
|
253 | src->skip_input_data = cv_ms_skip; |
|
|
254 | src->resync_to_restart = jpeg_resync_to_restart; |
|
|
255 | src->term_source = cv_ms_term; |
|
|
256 | src->next_input_byte = (JOCTET *)buf; |
|
|
257 | src->bytes_in_buffer = buflen; |
|
|
258 | } |
|
|
259 | |
|
|
260 | ///////////////////////////////////////////////////////////////////////////// |
190 | |
261 | |
191 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
262 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
192 | |
263 | |
193 | PROTOTYPES: ENABLE |
264 | PROTOTYPES: ENABLE |
194 | |
265 | |
|
|
266 | # calculate the common prefix length of two strings |
195 | # missing function in perl. really :) |
267 | # missing function in perl. really :) |
196 | int |
268 | int |
197 | common_prefix_length (a, b) |
269 | common_prefix_length (a, b) |
198 | unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); |
270 | unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); |
199 | unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); |
271 | unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); |
… | |
… | |
208 | |
280 | |
209 | OUTPUT: |
281 | OUTPUT: |
210 | RETVAL |
282 | RETVAL |
211 | |
283 | |
212 | const char * |
284 | const char * |
213 | magic (octet_string path) |
285 | magic (SV *path_or_data) |
|
|
286 | ALIAS: |
|
|
287 | magic = 0 |
|
|
288 | magic_mime = 1 |
|
|
289 | magic_buffer = 2 |
|
|
290 | magic_buffer_mime = 3 |
214 | CODE: |
291 | CODE: |
215 | { |
292 | { |
216 | static magic_t cookie; |
293 | STRLEN len; |
|
|
294 | char *data = SvPVbyte (path_or_data, len); |
217 | |
295 | |
218 | if (!cookie) |
296 | if (!magic_cookie[0]) |
219 | { |
297 | { |
220 | cookie = magic_open (MAGIC_SYMLINK); |
298 | magic_cookie[0] = magic_open (MAGIC_SYMLINK); |
221 | |
299 | magic_cookie[1] = magic_open (MAGIC_SYMLINK | MAGIC_MIME_TYPE); |
222 | if (cookie) |
|
|
223 | magic_load (cookie, 0); |
300 | 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); |
301 | magic_load (magic_cookie[1], 0); |
245 | else |
|
|
246 | XSRETURN_UNDEF; |
|
|
247 | } |
302 | } |
248 | |
303 | |
249 | perlinterp_release (); |
304 | perlinterp_release (); |
250 | RETVAL = magic_file (cookie, path); |
305 | |
|
|
306 | RETVAL = ix & 2 |
|
|
307 | ? magic_buffer (magic_cookie[ix & 1], data, len) |
|
|
308 | : magic_file (magic_cookie[ix & 1], data); |
|
|
309 | |
251 | perlinterp_acquire (); |
310 | perlinterp_acquire (); |
252 | } |
311 | } |
253 | OUTPUT: |
312 | OUTPUT: |
254 | RETVAL |
313 | RETVAL |
255 | |
314 | |
… | |
… | |
310 | : angle); |
369 | : angle); |
311 | perlinterp_acquire (); |
370 | perlinterp_acquire (); |
312 | OUTPUT: |
371 | OUTPUT: |
313 | RETVAL |
372 | RETVAL |
314 | |
373 | |
|
|
374 | const char * |
|
|
375 | filetype (SV *image_data) |
|
|
376 | CODE: |
|
|
377 | { |
|
|
378 | STRLEN data_len; |
|
|
379 | U8 *data = SvPVbyte (image_data, data_len); |
|
|
380 | |
|
|
381 | if (data_len >= 20 |
|
|
382 | && data[0] == 0xff |
|
|
383 | && data[1] == 0xd8 |
|
|
384 | && data[2] == 0xff) |
|
|
385 | RETVAL = "jpg"; |
|
|
386 | else if (data_len >= 12 |
|
|
387 | && data[ 0] == (U8)'R' |
|
|
388 | && data[ 1] == (U8)'I' |
|
|
389 | && data[ 2] == (U8)'F' |
|
|
390 | && data[ 3] == (U8)'F' |
|
|
391 | && data[ 8] == (U8)'W' |
|
|
392 | && data[ 9] == (U8)'E' |
|
|
393 | && data[10] == (U8)'B' |
|
|
394 | && data[11] == (U8)'P') |
|
|
395 | RETVAL = "webp"; |
|
|
396 | else if (data_len >= 16 |
|
|
397 | && data[ 0] == 0x89 |
|
|
398 | && data[ 1] == (U8)'P' |
|
|
399 | && data[ 2] == (U8)'N' |
|
|
400 | && data[ 3] == (U8)'G' |
|
|
401 | && data[ 4] == 0x0d |
|
|
402 | && data[ 5] == 0x0a |
|
|
403 | && data[ 6] == 0x1a |
|
|
404 | && data[ 7] == 0x0a) |
|
|
405 | RETVAL = "png"; |
|
|
406 | else |
|
|
407 | RETVAL = "other"; |
|
|
408 | } |
|
|
409 | OUTPUT: |
|
|
410 | RETVAL |
|
|
411 | |
315 | GdkPixbuf_noinc * |
412 | GdkPixbuf_noinc * |
|
|
413 | decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
|
|
414 | CODE: |
|
|
415 | { |
|
|
416 | #if WEBP |
|
|
417 | STRLEN data_size; |
|
|
418 | int alpha; |
|
|
419 | WebPData data; |
|
|
420 | WebPDemuxer *demux; |
|
|
421 | WebPIterator iter; |
|
|
422 | WebPDecoderConfig config; |
|
|
423 | int inw, inh; |
|
|
424 | |
|
|
425 | data.bytes = (uint8_t *)SvPVbyte (image_data, data_size); |
|
|
426 | data.size = data_size; |
|
|
427 | |
|
|
428 | perlinterp_release (); |
|
|
429 | |
|
|
430 | RETVAL = 0; |
|
|
431 | |
|
|
432 | if (!(demux = WebPDemux (&data))) |
|
|
433 | goto err_demux; |
|
|
434 | |
|
|
435 | if (!WebPDemuxGetFrame (demux, 1, &iter)) |
|
|
436 | goto err_iter; |
|
|
437 | |
|
|
438 | if (!WebPInitDecoderConfig (&config)) |
|
|
439 | goto err_iter; |
|
|
440 | |
|
|
441 | config.options.use_threads = 1; |
|
|
442 | |
|
|
443 | if (WebPGetFeatures (iter.fragment.bytes, iter.fragment.size, &config.input) != VP8_STATUS_OK) |
|
|
444 | goto err_iter; |
|
|
445 | |
|
|
446 | inw = config.input.width; |
|
|
447 | inh = config.input.height; |
|
|
448 | |
|
|
449 | if (thumbnail) |
|
|
450 | { |
|
|
451 | if (inw * ih > inh * iw) |
|
|
452 | ih = (iw * inh + inw - 1) / inw; |
|
|
453 | else |
|
|
454 | iw = (ih * inw + inh - 1) / inh; |
|
|
455 | |
|
|
456 | config.options.bypass_filtering = 1; |
|
|
457 | config.options.no_fancy_upsampling = 1; |
|
|
458 | |
|
|
459 | config.options.use_scaling = 1; |
|
|
460 | config.options.scaled_width = iw; |
|
|
461 | config.options.scaled_height = ih; |
|
|
462 | } |
|
|
463 | else |
|
|
464 | { |
|
|
465 | iw = inw; |
|
|
466 | ih = inh; |
|
|
467 | } |
|
|
468 | |
|
|
469 | alpha = !!config.input.has_alpha; |
|
|
470 | |
|
|
471 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, alpha, 8, iw, ih); |
|
|
472 | if (!RETVAL) |
|
|
473 | goto err_iter; |
|
|
474 | |
|
|
475 | config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB; |
|
|
476 | config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL); |
|
|
477 | config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL); |
|
|
478 | config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL); |
|
|
479 | config.output.is_external_memory = 1; |
|
|
480 | |
|
|
481 | if (WebPDecode (iter.fragment.bytes, iter.fragment.size, &config) != VP8_STATUS_OK) |
|
|
482 | { |
|
|
483 | g_object_unref (RETVAL); |
|
|
484 | RETVAL = 0; |
|
|
485 | goto err_iter; |
|
|
486 | } |
|
|
487 | |
|
|
488 | err_iter: |
|
|
489 | WebPDemuxReleaseIterator (&iter); |
|
|
490 | err_demux: |
|
|
491 | WebPDemuxDelete (demux); |
|
|
492 | |
|
|
493 | perlinterp_acquire (); |
|
|
494 | #else |
|
|
495 | croak ("load_webp: webp not enabled at compile time"); |
|
|
496 | #endif |
|
|
497 | } |
|
|
498 | OUTPUT: |
|
|
499 | RETVAL |
|
|
500 | |
|
|
501 | GdkPixbuf_noinc * |
316 | load_jpeg (SV *path, int thumbnail = 0, int iw = 0, int ih = 0) |
502 | decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
317 | CODE: |
503 | CODE: |
318 | { |
504 | { |
319 | struct jpeg_decompress_struct cinfo; |
505 | struct jpeg_decompress_struct cinfo; |
320 | struct jpg_err_mgr jerr; |
506 | struct jpg_err_mgr jerr; |
321 | guchar *data; |
|
|
322 | int rs; |
507 | int rs; |
323 | FILE *fp; |
|
|
324 | volatile GdkPixbuf *pb = 0; |
508 | volatile GdkPixbuf *pb = 0; |
|
|
509 | STRLEN data_len; |
|
|
510 | guchar *data = SvPVbyte (image_data, data_len); |
325 | |
511 | |
326 | RETVAL = 0; |
512 | RETVAL = 0; |
327 | |
|
|
328 | fp = fopen (SvPVbyte_nolen (path), "rb"); |
|
|
329 | |
|
|
330 | if (!fp) |
|
|
331 | XSRETURN_UNDEF; |
|
|
332 | |
513 | |
333 | perlinterp_release (); |
514 | perlinterp_release (); |
334 | |
515 | |
335 | cinfo.err = jpeg_std_error (&jerr.err); |
516 | cinfo.err = jpeg_std_error (&jerr.err); |
336 | |
517 | |
337 | jerr.err.error_exit = cv_error_exit; |
518 | jerr.err.error_exit = cv_error_exit; |
338 | jerr.err.output_message = cv_error_output; |
519 | jerr.err.output_message = cv_error_output; |
339 | |
520 | |
340 | if ((rs = setjmp (jerr.setjmp_buffer))) |
521 | if ((rs = setjmp (jerr.setjmp_buffer))) |
341 | { |
522 | { |
342 | fclose (fp); |
|
|
343 | jpeg_destroy_decompress (&cinfo); |
523 | jpeg_destroy_decompress (&cinfo); |
344 | |
524 | |
345 | if (pb) |
525 | if (pb) |
346 | g_object_unref ((gpointer)pb); |
526 | g_object_unref ((gpointer)pb); |
347 | |
527 | |
348 | perlinterp_acquire (); |
528 | perlinterp_acquire (); |
349 | XSRETURN_UNDEF; |
529 | XSRETURN_UNDEF; |
350 | } |
530 | } |
351 | |
531 | |
|
|
532 | if (!data_len) |
|
|
533 | longjmp (jerr.setjmp_buffer, 4); |
|
|
534 | |
352 | jpeg_create_decompress (&cinfo); |
535 | jpeg_create_decompress (&cinfo); |
|
|
536 | cv_jpeg_mem_src (&cinfo, data, data_len); |
353 | |
537 | |
354 | jpeg_stdio_src (&cinfo, fp); |
|
|
355 | jpeg_read_header (&cinfo, TRUE); |
538 | jpeg_read_header (&cinfo, TRUE); |
356 | |
539 | |
357 | cinfo.dct_method = JDCT_DEFAULT; |
540 | cinfo.dct_method = JDCT_DEFAULT; |
358 | cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ |
541 | cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ |
359 | cinfo.do_block_smoothing = FALSE; |
542 | cinfo.do_block_smoothing = FALSE; |
… | |
… | |
377 | cinfo.scale_denom <<= 1; |
560 | cinfo.scale_denom <<= 1; |
378 | jpeg_calc_output_dimensions (&cinfo); |
561 | jpeg_calc_output_dimensions (&cinfo); |
379 | } |
562 | } |
380 | } |
563 | } |
381 | |
564 | |
|
|
565 | if (cinfo.output_components != 3) |
|
|
566 | longjmp (jerr.setjmp_buffer, 3); |
|
|
567 | |
|
|
568 | if (cinfo.jpeg_color_space == JCS_YCCK || cinfo.jpeg_color_space == JCS_CMYK) |
|
|
569 | { |
|
|
570 | cinfo.out_color_space = JCS_CMYK; |
|
|
571 | cinfo.output_components = 4; |
|
|
572 | } |
|
|
573 | |
382 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height); |
574 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, cinfo.output_components == 4, 8, cinfo.output_width, cinfo.output_height); |
383 | if (!RETVAL) |
575 | if (!RETVAL) |
384 | longjmp (jerr.setjmp_buffer, 2); |
576 | longjmp (jerr.setjmp_buffer, 2); |
385 | |
577 | |
386 | data = gdk_pixbuf_get_pixels (RETVAL); |
578 | data = gdk_pixbuf_get_pixels (RETVAL); |
387 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
579 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
388 | |
|
|
389 | if (cinfo.output_components != 3) |
|
|
390 | longjmp (jerr.setjmp_buffer, 3); |
|
|
391 | |
580 | |
392 | jpeg_start_decompress (&cinfo); |
581 | jpeg_start_decompress (&cinfo); |
393 | |
582 | |
394 | while (cinfo.output_scanline < cinfo.output_height) |
583 | while (cinfo.output_scanline < cinfo.output_height) |
395 | { |
584 | { |
… | |
… | |
402 | rp [3] = (guchar *)rp [2] + rs; |
591 | rp [3] = (guchar *)rp [2] + rs; |
403 | |
592 | |
404 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
593 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
405 | } |
594 | } |
406 | |
595 | |
|
|
596 | if (cinfo.out_color_space == JCS_CMYK) |
|
|
597 | { |
|
|
598 | guchar *end = data + cinfo.output_height * rs; |
|
|
599 | |
|
|
600 | while (data < end) |
|
|
601 | { |
|
|
602 | U32 c = data [0]; |
|
|
603 | U32 m = data [1]; |
|
|
604 | U32 y = data [2]; |
|
|
605 | U32 k = data [3]; |
|
|
606 | |
|
|
607 | if (0) |
|
|
608 | if (cinfo.Adobe_transform == 2) |
|
|
609 | { |
|
|
610 | c ^= 0xff; |
|
|
611 | m ^= 0xff; |
|
|
612 | y ^= 0xff; |
|
|
613 | k ^= 0xff; |
|
|
614 | } |
|
|
615 | |
|
|
616 | data [0] = (c * k + 0x80) / 0xff; |
|
|
617 | data [1] = (m * k + 0x80) / 0xff; |
|
|
618 | data [2] = (y * k + 0x80) / 0xff; |
|
|
619 | data [3] = 0xff; |
|
|
620 | |
|
|
621 | data += 4; |
|
|
622 | } |
|
|
623 | } |
|
|
624 | |
407 | jpeg_finish_decompress (&cinfo); |
625 | jpeg_finish_decompress (&cinfo); |
408 | fclose (fp); |
|
|
409 | jpeg_destroy_decompress (&cinfo); |
626 | jpeg_destroy_decompress (&cinfo); |
410 | perlinterp_acquire (); |
627 | perlinterp_acquire (); |
411 | } |
628 | } |
412 | OUTPUT: |
629 | OUTPUT: |
413 | RETVAL |
630 | RETVAL |