… | |
… | |
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 | |
|
|
22 | #include <assert.h> |
|
|
23 | |
|
|
24 | #if WEBP |
|
|
25 | #include <webp/demux.h> |
|
|
26 | #include <webp/decode.h> |
|
|
27 | #endif |
|
|
28 | |
|
|
29 | #include "perlmulticore.h" |
|
|
30 | |
19 | #define IW 80 /* MUST match Schnauzer.pm! */ |
31 | #define IW 80 /* MUST match Schnauzer.pm! */ |
20 | #define IH 60 /* MUST match Schnauzer.pm! */ |
32 | #define IH 60 /* MUST match Schnauzer.pm! */ |
21 | |
33 | |
22 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
34 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
23 | |
35 | |
24 | #define LINELENGTH 240 |
36 | #define LINELENGTH 240 |
25 | |
37 | |
26 | #define ELLIPSIS "\xe2\x80\xa6" |
38 | #define ELLIPSIS "\xe2\x80\xa6" |
|
|
39 | |
|
|
40 | typedef char *octet_string; |
|
|
41 | |
|
|
42 | static magic_t magic_cookie[2]; /* !mime, mime */ |
27 | |
43 | |
28 | struct jpg_err_mgr |
44 | struct jpg_err_mgr |
29 | { |
45 | { |
30 | struct jpeg_error_mgr err; |
46 | struct jpeg_error_mgr err; |
31 | jmp_buf setjmp_buffer; |
47 | jmp_buf setjmp_buffer; |
32 | }; |
48 | }; |
33 | |
49 | |
34 | static void |
50 | static void |
35 | cv_error_exit (j_common_ptr cinfo) |
51 | cv_error_exit (j_common_ptr cinfo) |
36 | { |
52 | { |
|
|
53 | cinfo->err->output_message (cinfo); |
37 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
54 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
38 | } |
55 | } |
39 | |
56 | |
40 | static void |
57 | static void |
41 | cv_error_output (j_common_ptr cinfo) |
58 | cv_error_output (j_common_ptr cinfo) |
42 | { |
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); |
43 | return; |
65 | return; |
44 | } |
66 | } |
45 | |
67 | |
46 | static void |
68 | static void |
47 | 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, |
… | |
… | |
144 | if (!--a85_cnt) |
166 | if (!--a85_cnt) |
145 | { |
167 | { |
146 | a85_cnt = 4; |
168 | a85_cnt = 4; |
147 | if (a85_val) |
169 | if (a85_val) |
148 | { |
170 | { |
149 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
171 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
150 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
172 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
151 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
173 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
152 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
174 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
153 | a85_ptr[0] = (a85_val ) + 33; |
175 | a85_ptr[0] = (a85_val ) + 33; |
154 | |
176 | |
155 | a85_ptr += 5; |
177 | a85_ptr += 5; |
156 | } |
178 | } |
… | |
… | |
179 | |
201 | |
180 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
202 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
181 | } |
203 | } |
182 | |
204 | |
183 | ///////////////////////////////////////////////////////////////////////////// |
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 | ///////////////////////////////////////////////////////////////////////////// |
184 | |
261 | |
185 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
262 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
186 | |
263 | |
187 | PROTOTYPES: ENABLE |
264 | PROTOTYPES: ENABLE |
188 | |
265 | |
|
|
266 | # calculate the common prefix length of two strings |
189 | # missing function in perl. really :) |
267 | # missing function in perl. really :) |
190 | int |
268 | int |
191 | common_prefix_length (a, b) |
269 | common_prefix_length (a, b) |
192 | unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); |
270 | unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); |
193 | unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); |
271 | unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); |
… | |
… | |
202 | |
280 | |
203 | OUTPUT: |
281 | OUTPUT: |
204 | RETVAL |
282 | RETVAL |
205 | |
283 | |
206 | const char * |
284 | const char * |
207 | magic (const char *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 |
208 | CODE: |
291 | CODE: |
209 | { |
292 | { |
210 | static magic_t cookie; |
293 | STRLEN len; |
|
|
294 | char *data = SvPVbyte (path_or_data, len); |
211 | |
295 | |
212 | if (!cookie) |
296 | if (!magic_cookie[0]) |
|
|
297 | { |
|
|
298 | magic_cookie[0] = magic_open (MAGIC_SYMLINK); |
|
|
299 | magic_cookie[1] = magic_open (MAGIC_SYMLINK | MAGIC_MIME_TYPE); |
|
|
300 | magic_load (magic_cookie[0], 0); |
|
|
301 | magic_load (magic_cookie[1], 0); |
213 | { |
302 | } |
214 | cookie = magic_open (MAGIC_NONE); |
|
|
215 | |
303 | |
216 | if (cookie) |
304 | perlinterp_release (); |
217 | magic_load (cookie, 0); |
|
|
218 | else |
|
|
219 | XSRETURN_UNDEF; |
|
|
220 | } |
|
|
221 | |
305 | |
222 | RETVAL = magic_file (cookie, path); |
306 | RETVAL = ix & 2 |
|
|
307 | ? magic_buffer (magic_cookie[ix & 1], data, len) |
|
|
308 | : magic_file (magic_cookie[ix & 1], data); |
|
|
309 | |
|
|
310 | perlinterp_acquire (); |
223 | } |
311 | } |
224 | OUTPUT: |
312 | OUTPUT: |
225 | RETVAL |
313 | RETVAL |
226 | |
314 | |
227 | const char * |
|
|
228 | magic_mime (const char *path) |
|
|
229 | CODE: |
|
|
230 | { |
|
|
231 | static magic_t cookie; |
|
|
232 | |
|
|
233 | if (!cookie) |
|
|
234 | { |
|
|
235 | cookie = magic_open (MAGIC_MIME); |
|
|
236 | |
|
|
237 | if (cookie) |
|
|
238 | magic_load (cookie, 0); |
|
|
239 | else |
|
|
240 | XSRETURN_UNDEF; |
|
|
241 | } |
|
|
242 | |
|
|
243 | RETVAL = magic_file (cookie, path); |
|
|
244 | } |
|
|
245 | OUTPUT: |
|
|
246 | RETVAL |
|
|
247 | |
|
|
248 | # missing in Gtk2 perl module |
315 | # missing/broken in Gtk2 perl module |
|
|
316 | |
|
|
317 | void |
|
|
318 | gdk_window_clear_hints (GdkWindow *window) |
|
|
319 | CODE: |
|
|
320 | gdk_window_set_geometry_hints (window, 0, 0); |
249 | |
321 | |
250 | gboolean |
322 | gboolean |
251 | gdk_net_wm_supports (GdkAtom property) |
323 | gdk_net_wm_supports (GdkAtom property) |
252 | CODE: |
324 | CODE: |
253 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
325 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
… | |
… | |
259 | RETVAL |
331 | RETVAL |
260 | |
332 | |
261 | GdkPixbuf_noinc * |
333 | GdkPixbuf_noinc * |
262 | dealpha_expose (GdkPixbuf *pb) |
334 | dealpha_expose (GdkPixbuf *pb) |
263 | CODE: |
335 | CODE: |
|
|
336 | perlinterp_release (); |
264 | { |
337 | { |
265 | int w = gdk_pixbuf_get_width (pb); |
338 | int w = gdk_pixbuf_get_width (pb); |
266 | int h = gdk_pixbuf_get_height (pb); |
339 | int h = gdk_pixbuf_get_height (pb); |
267 | int bpp = gdk_pixbuf_get_n_channels (pb); |
340 | int bpp = gdk_pixbuf_get_n_channels (pb); |
268 | int x, y, i; |
341 | int x, y, i; |
… | |
… | |
277 | for (x = 0; x < w; x++) |
350 | for (x = 0; x < w; x++) |
278 | for (y = 0; y < h; y++) |
351 | for (y = 0; y < h; y++) |
279 | for (i = 0; i < 3; i++) |
352 | for (i = 0; i < 3; i++) |
280 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
353 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
281 | } |
354 | } |
|
|
355 | perlinterp_acquire (); |
282 | OUTPUT: |
356 | OUTPUT: |
283 | RETVAL |
357 | RETVAL |
284 | |
358 | |
285 | GdkPixbuf_noinc * |
359 | GdkPixbuf_noinc * |
286 | rotate (GdkPixbuf *pb, int angle) |
360 | rotate (GdkPixbuf *pb, int angle) |
287 | CODE: |
361 | CODE: |
|
|
362 | perlinterp_release (); |
|
|
363 | if (angle < 0) |
|
|
364 | angle += 360; |
288 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
365 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
289 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
366 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
290 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
367 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
291 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
368 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
292 | : angle); |
369 | : angle); |
|
|
370 | perlinterp_acquire (); |
293 | OUTPUT: |
371 | OUTPUT: |
294 | RETVAL |
372 | RETVAL |
295 | |
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 | |
296 | GdkPixbuf_noinc * |
412 | GdkPixbuf_noinc * |
297 | load_jpeg (SV *path, int thumbnail=0) |
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 * |
|
|
502 | decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
298 | CODE: |
503 | CODE: |
299 | { |
504 | { |
300 | struct jpeg_decompress_struct cinfo; |
505 | struct jpeg_decompress_struct cinfo; |
301 | struct jpg_err_mgr jerr; |
506 | struct jpg_err_mgr jerr; |
302 | guchar *data; |
|
|
303 | int rs; |
507 | int rs; |
304 | FILE *fp; |
|
|
305 | volatile GdkPixbuf *pb = 0; |
508 | volatile GdkPixbuf *pb = 0; |
|
|
509 | STRLEN data_len; |
|
|
510 | guchar *data = SvPVbyte (image_data, data_len); |
306 | |
511 | |
307 | RETVAL = 0; |
512 | RETVAL = 0; |
308 | |
513 | |
309 | fp = fopen (SvPVbyte_nolen (path), "rb"); |
514 | perlinterp_release (); |
310 | |
|
|
311 | if (!fp) |
|
|
312 | XSRETURN_UNDEF; |
|
|
313 | |
515 | |
314 | cinfo.err = jpeg_std_error (&jerr.err); |
516 | cinfo.err = jpeg_std_error (&jerr.err); |
315 | |
517 | |
316 | jerr.err.error_exit = cv_error_exit; |
518 | jerr.err.error_exit = cv_error_exit; |
317 | jerr.err.output_message = cv_error_output; |
519 | jerr.err.output_message = cv_error_output; |
318 | |
520 | |
319 | if ((rs = setjmp (jerr.setjmp_buffer))) |
521 | if ((rs = setjmp (jerr.setjmp_buffer))) |
320 | { |
522 | { |
321 | fclose (fp); |
|
|
322 | jpeg_destroy_decompress (&cinfo); |
523 | jpeg_destroy_decompress (&cinfo); |
323 | |
524 | |
324 | if (pb) |
525 | if (pb) |
325 | g_object_unref ((gpointer)pb); |
526 | g_object_unref ((gpointer)pb); |
326 | |
527 | |
|
|
528 | perlinterp_acquire (); |
327 | XSRETURN_UNDEF; |
529 | XSRETURN_UNDEF; |
328 | } |
530 | } |
329 | |
531 | |
|
|
532 | if (!data_len) |
|
|
533 | longjmp (jerr.setjmp_buffer, 4); |
|
|
534 | |
330 | jpeg_create_decompress (&cinfo); |
535 | jpeg_create_decompress (&cinfo); |
|
|
536 | cv_jpeg_mem_src (&cinfo, data, data_len); |
331 | |
537 | |
332 | jpeg_stdio_src (&cinfo, fp); |
|
|
333 | jpeg_read_header (&cinfo, TRUE); |
538 | jpeg_read_header (&cinfo, TRUE); |
334 | |
539 | |
335 | cinfo.dct_method = JDCT_DEFAULT; |
540 | cinfo.dct_method = JDCT_DEFAULT; |
336 | 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 */ |
337 | cinfo.do_block_smoothing = FALSE; |
542 | cinfo.do_block_smoothing = FALSE; |
… | |
… | |
347 | { |
552 | { |
348 | cinfo.dct_method = JDCT_FASTEST; |
553 | cinfo.dct_method = JDCT_FASTEST; |
349 | cinfo.do_fancy_upsampling = FALSE; |
554 | cinfo.do_fancy_upsampling = FALSE; |
350 | |
555 | |
351 | while (cinfo.scale_denom < 8 |
556 | while (cinfo.scale_denom < 8 |
352 | && cinfo.output_width >= IW*4 |
557 | && cinfo.output_width >= iw*4 |
353 | && cinfo.output_height >= IH*4) |
558 | && cinfo.output_height >= ih*4) |
354 | { |
559 | { |
355 | cinfo.scale_denom <<= 1; |
560 | cinfo.scale_denom <<= 1; |
356 | jpeg_calc_output_dimensions (&cinfo); |
561 | jpeg_calc_output_dimensions (&cinfo); |
357 | } |
562 | } |
358 | } |
563 | } |
359 | |
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 | |
360 | 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); |
361 | if (!RETVAL) |
575 | if (!RETVAL) |
362 | longjmp (jerr.setjmp_buffer, 2); |
576 | longjmp (jerr.setjmp_buffer, 2); |
363 | |
577 | |
364 | data = gdk_pixbuf_get_pixels (RETVAL); |
578 | data = gdk_pixbuf_get_pixels (RETVAL); |
365 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
579 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
366 | |
|
|
367 | if (cinfo.output_components != 3) |
|
|
368 | longjmp (jerr.setjmp_buffer, 3); |
|
|
369 | |
580 | |
370 | jpeg_start_decompress (&cinfo); |
581 | jpeg_start_decompress (&cinfo); |
371 | |
582 | |
372 | while (cinfo.output_scanline < cinfo.output_height) |
583 | while (cinfo.output_scanline < cinfo.output_height) |
373 | { |
584 | { |
… | |
… | |
380 | rp [3] = (guchar *)rp [2] + rs; |
591 | rp [3] = (guchar *)rp [2] + rs; |
381 | |
592 | |
382 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
593 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
383 | } |
594 | } |
384 | |
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 | |
385 | jpeg_finish_decompress (&cinfo); |
625 | jpeg_finish_decompress (&cinfo); |
386 | fclose (fp); |
|
|
387 | jpeg_destroy_decompress (&cinfo); |
626 | jpeg_destroy_decompress (&cinfo); |
|
|
627 | perlinterp_acquire (); |
388 | } |
628 | } |
389 | OUTPUT: |
629 | OUTPUT: |
390 | RETVAL |
630 | RETVAL |
391 | |
631 | |
392 | void |
632 | void |
393 | compare (GdkPixbuf *a, GdkPixbuf *b) |
633 | compare (GdkPixbuf *a, GdkPixbuf *b) |
394 | PPCODE: |
634 | PPCODE: |
|
|
635 | perlinterp_release (); |
395 | { |
636 | { |
396 | int w = gdk_pixbuf_get_width (a); |
637 | int w = gdk_pixbuf_get_width (a); |
397 | int h = gdk_pixbuf_get_height (a); |
638 | int h = gdk_pixbuf_get_height (a); |
|
|
639 | |
398 | int sa = gdk_pixbuf_get_rowstride (a); |
640 | int sa = gdk_pixbuf_get_rowstride (a); |
399 | int sb = gdk_pixbuf_get_rowstride (b); |
641 | int sb = gdk_pixbuf_get_rowstride (b); |
400 | |
642 | |
401 | guchar *pa = gdk_pixbuf_get_pixels (a); |
643 | guchar *pa = gdk_pixbuf_get_pixels (a); |
402 | guchar *pb = gdk_pixbuf_get_pixels (b); |
644 | guchar *pb = gdk_pixbuf_get_pixels (b); |
… | |
… | |
426 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
668 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
427 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
669 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
428 | } |
670 | } |
429 | } |
671 | } |
430 | |
672 | |
|
|
673 | perlinterp_acquire (); |
|
|
674 | |
431 | EXTEND (SP, 2); |
675 | EXTEND (SP, 2); |
432 | PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); |
676 | PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); |
433 | PUSHs (sv_2mortal (newSVnv (peak / 255.))); |
677 | PUSHs (sv_2mortal (newSVnv (peak / 255.))); |
434 | } |
678 | } |
435 | |
679 | |
436 | ############################################################################# |
680 | ############################################################################# |
437 | |
681 | |
438 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
682 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
439 | |
683 | |
|
|
684 | # currently only works for filenames (octet strings) |
|
|
685 | |
440 | SV * |
686 | SV * |
441 | foldcase (SV *pathsv) |
687 | foldcase (SV *pathsv) |
442 | PROTOTYPE: $ |
688 | PROTOTYPE: $ |
443 | CODE: |
689 | CODE: |
444 | { |
690 | { |
445 | STRLEN plen; |
691 | STRLEN plen; |
446 | U8 *path = (U8 *)SvPVutf8 (pathsv, plen); |
692 | U8 *path = (U8 *)SvPV (pathsv, plen); |
447 | U8 *pend = path + plen; |
693 | U8 *pend = path + plen; |
448 | U8 dst [plen * 6 * 3], *dstp = dst; |
694 | U8 dst [plen * 6 * 3], *dstp = dst; |
449 | |
695 | |
450 | while (path < pend) |
696 | while (path < pend) |
451 | { |
697 | { |
452 | U8 ch = *path; |
698 | U8 ch = *path; |
453 | |
699 | |
454 | if (ch >= 'a' && ch <= 'z') |
700 | if (ch >= 'a' && ch <= 'z') |
455 | *dstp++ = *path++; |
701 | *dstp++ = *path++; |
|
|
702 | else if (ch >= 'A' && ch <= 'Z') |
|
|
703 | *dstp++ = *path++ + ('a' - 'A'); |
456 | else if (ch >= '0' && ch <= '9') |
704 | else if (ch >= '0' && ch <= '9') |
457 | { |
705 | { |
458 | STRLEN el, nl = 0; |
706 | STRLEN el, nl = 0; |
459 | while (*path >= '0' && *path <= '9' && path < pend) |
707 | while (*path >= '0' && *path <= '9' && path < pend) |
460 | path++, nl++; |
708 | path++, nl++; |
… | |
… | |
463 | *dstp++ = '0'; |
711 | *dstp++ = '0'; |
464 | |
712 | |
465 | memcpy (dstp, path - nl, nl); |
713 | memcpy (dstp, path - nl, nl); |
466 | dstp += nl; |
714 | dstp += nl; |
467 | } |
715 | } |
|
|
716 | else |
|
|
717 | *dstp++ = *path++; |
|
|
718 | #if 0 |
468 | else |
719 | else |
469 | { |
720 | { |
470 | STRLEN cl; |
721 | STRLEN cl; |
471 | to_utf8_fold (path, dstp, &cl); |
722 | to_utf8_fold (path, dstp, &cl); |
472 | dstp += cl; |
723 | dstp += cl; |
473 | path += is_utf8_char (path); |
724 | path += is_utf8_char (path); |
474 | } |
725 | } |
|
|
726 | #endif |
475 | } |
727 | } |
476 | |
728 | |
477 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
729 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
478 | } |
730 | } |
479 | OUTPUT: |
731 | OUTPUT: |
… | |
… | |
648 | { |
900 | { |
649 | int i; |
901 | int i; |
650 | AV *av, *result; |
902 | AV *av, *result; |
651 | |
903 | |
652 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
904 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
653 | croak ("Not an array ref as first argument to make_histogram"); |
905 | croak ("Not an array ref as first argument to extract_features"); |
654 | |
906 | |
655 | av = (AV *) SvRV (ar); |
907 | av = (AV *) SvRV (ar); |
656 | result = newAV (); |
908 | result = newAV (); |
657 | |
909 | |
658 | for (i = 0; i <= av_len (av); ++i) |
910 | for (i = 0; i <= av_len (av); ++i) |
… | |
… | |
721 | RETVAL = newRV_noinc ((SV *)result); |
973 | RETVAL = newRV_noinc ((SV *)result); |
722 | } |
974 | } |
723 | OUTPUT: |
975 | OUTPUT: |
724 | RETVAL |
976 | RETVAL |
725 | |
977 | |
726 | SV * |
|
|
727 | make_histograms (SV *ar) |
|
|
728 | CODE: |
|
|
729 | { |
|
|
730 | int i; |
|
|
731 | AV *av, *result; |
|
|
732 | |
|
|
733 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
|
|
734 | croak ("Not an array ref as first argument to make_histogram"); |
|
|
735 | |
|
|
736 | av = (AV *) SvRV (ar); |
|
|
737 | result = newAV (); |
|
|
738 | |
|
|
739 | for (i = 0; i <= av_len (av); ++i) |
|
|
740 | { |
|
|
741 | const int HISTSIZE = 64; |
|
|
742 | |
|
|
743 | int j; |
|
|
744 | SV *sv = *av_fetch (av, i, 1); |
|
|
745 | STRLEN len; |
|
|
746 | char *buf = SvPVbyte (sv, len); |
|
|
747 | |
|
|
748 | int tmphist[HISTSIZE]; |
|
|
749 | float *hist; |
|
|
750 | |
|
|
751 | SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); |
|
|
752 | SvPOK_on (histsv); |
|
|
753 | SvCUR_set (histsv, HISTSIZE * sizeof (float)); |
|
|
754 | hist = (float *)SvPVX (histsv); |
|
|
755 | |
|
|
756 | Zero (tmphist, sizeof (tmphist), char); |
|
|
757 | |
|
|
758 | for (j = len; j--; ) |
|
|
759 | { |
|
|
760 | unsigned int idx |
|
|
761 | = ((*buf & 0xc0) >> 2) |
|
|
762 | | ((*buf & 0x18) >> 1) |
|
|
763 | | (*buf & 0x03); |
|
|
764 | |
|
|
765 | ++tmphist[idx]; |
|
|
766 | ++buf; |
|
|
767 | } |
|
|
768 | |
|
|
769 | for (j = 0; j < HISTSIZE; ++j) |
|
|
770 | hist[j] = (float)tmphist[j] / (len + 1e-30); |
|
|
771 | |
|
|
772 | av_push (result, histsv); |
|
|
773 | } |
|
|
774 | |
|
|
775 | RETVAL = newRV_noinc ((SV *)result); |
|
|
776 | } |
|
|
777 | OUTPUT: |
|
|
778 | RETVAL |
|
|
779 | |
|
|
780 | |
|
|