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Comparing CV/CV.xs (file contents):
Revision 1.41 by root, Sat Mar 1 04:11:26 2008 UTC vs.
Revision 1.52 by root, Sat Dec 23 04:25:50 2017 UTC

… …
9#include <magic.h> 9#include <magic.h>
10 10
11#include <jpeglib.h> 11#include <jpeglib.h>
12#include <glib.h> 12#include <glib.h>
13#include <gtk/gtk.h> 13#include <gtk/gtk.h>
14#include <gdk/gdkx.h>
14#include <gdk-pixbuf/gdk-pixbuf.h> 15#include <gdk-pixbuf/gdk-pixbuf.h>
15 16
16#include <gperl.h> 17#include <gperl.h>
17#include <gtk2perl.h> 18#include <gtk2perl.h>
18 19
20#include <assert.h>
21
22#if WEBP
23#include <webp/decode.h>
24#endif
25
26#include "perlmulticore.h"
27
19#define IW 80 /* MUST match Schnauzer.pm! */ 28#define IW 80 /* MUST match Schnauzer.pm! */
20#define IH 60 /* MUST match Schnauzer.pm! */ 29#define IH 60 /* MUST match Schnauzer.pm! */
21 30
22#define RAND (seed = (seed + 7141) * 54773 % 134456) 31#define RAND (seed = (seed + 7141) * 54773 % 134456)
23 32
24#define LINELENGTH 240 33#define LINELENGTH 240
25 34
26#define ELLIPSIS "\xe2\x80\xa6" 35#define ELLIPSIS "\xe2\x80\xa6"
36
37typedef char *octet_string;
38
39static magic_t magic_cookie[2]; /* !mime, mime */
27 40
28struct jpg_err_mgr 41struct jpg_err_mgr
29{ 42{
30 struct jpeg_error_mgr err; 43 struct jpeg_error_mgr err;
31 jmp_buf setjmp_buffer; 44 jmp_buf setjmp_buffer;
32}; 45};
33 46
34static void 47static void
35cv_error_exit (j_common_ptr cinfo) 48cv_error_exit (j_common_ptr cinfo)
36{ 49{
50 cinfo->err->output_message (cinfo);
37 longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); 51 longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99);
38} 52}
39 53
40static void 54static void
41cv_error_output (j_common_ptr cinfo) 55cv_error_output (j_common_ptr cinfo)
42{ 56{
57 char msg[JMSG_LENGTH_MAX];
58
59 cinfo->err->format_message (cinfo, msg);
60
61 fprintf (stderr, "JPEG decoding error: %s\n", msg);
43 return; 62 return;
44} 63}
45 64
46static void 65static void
47rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, 66rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b,
… …
144 if (!--a85_cnt) 163 if (!--a85_cnt)
145 { 164 {
146 a85_cnt = 4; 165 a85_cnt = 4;
147 if (a85_val) 166 if (a85_val)
148 { 167 {
149 a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; 168 a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85;
150 a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; 169 a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85;
151 a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; 170 a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85;
152 a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; 171 a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85;
153 a85_ptr[0] = (a85_val ) + 33; 172 a85_ptr[0] = (a85_val ) + 33;
154 173
155 a85_ptr += 5; 174 a85_ptr += 5;
156 } 175 }
… …
202 221
203 OUTPUT: 222 OUTPUT:
204 RETVAL 223 RETVAL
205 224
206const char * 225const char *
207magic (const char *path) 226magic (SV *path_or_data)
227 ALIAS:
228 magic = 0
229 magic_mime = 1
230 magic_buffer = 2
231 magic_buffer_mime = 3
208 CODE: 232 CODE:
209{ 233{
210 static magic_t cookie; 234 STRLEN len;
235 char *data = SvPVbyte (path_or_data, len);
211 236
212 if (!cookie) 237 if (!magic_cookie[0])
238 {
239 magic_cookie[0] = magic_open (MAGIC_SYMLINK);
240 magic_cookie[1] = magic_open (MAGIC_SYMLINK | MAGIC_MIME_TYPE);
241 magic_load (magic_cookie[0], 0);
242 magic_load (magic_cookie[1], 0);
213 { 243 }
214 cookie = magic_open (MAGIC_NONE);
215 244
216 if (cookie) 245 perlinterp_release ();
217 magic_load (cookie, 0);
218 else
219 XSRETURN_UNDEF;
220 }
221 246
222 RETVAL = magic_file (cookie, path);
223}
224 OUTPUT:
225 RETVAL 247 RETVAL = ix & 2
248 ? magic_buffer (magic_cookie[ix & 1], data, len)
249 : magic_file (magic_cookie[ix & 1], data);
226 250
227const char * 251 perlinterp_acquire ();
228magic_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} 252}
245 OUTPUT: 253 OUTPUT:
246 RETVAL 254 RETVAL
247 255
248# missing/broken in Gtk2 perl module 256# missing/broken in Gtk2 perl module
… …
264 RETVAL 272 RETVAL
265 273
266GdkPixbuf_noinc * 274GdkPixbuf_noinc *
267dealpha_expose (GdkPixbuf *pb) 275dealpha_expose (GdkPixbuf *pb)
268 CODE: 276 CODE:
277 perlinterp_release ();
269{ 278{
270 int w = gdk_pixbuf_get_width (pb); 279 int w = gdk_pixbuf_get_width (pb);
271 int h = gdk_pixbuf_get_height (pb); 280 int h = gdk_pixbuf_get_height (pb);
272 int bpp = gdk_pixbuf_get_n_channels (pb); 281 int bpp = gdk_pixbuf_get_n_channels (pb);
273 int x, y, i; 282 int x, y, i;
… …
282 for (x = 0; x < w; x++) 291 for (x = 0; x < w; x++)
283 for (y = 0; y < h; y++) 292 for (y = 0; y < h; y++)
284 for (i = 0; i < 3; i++) 293 for (i = 0; i < 3; i++)
285 dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; 294 dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i];
286} 295}
296 perlinterp_acquire ();
287 OUTPUT: 297 OUTPUT:
288 RETVAL 298 RETVAL
289 299
290GdkPixbuf_noinc * 300GdkPixbuf_noinc *
291rotate (GdkPixbuf *pb, int angle) 301rotate (GdkPixbuf *pb, int angle)
292 CODE: 302 CODE:
303 perlinterp_release ();
304 if (angle < 0)
305 angle += 360;
293 RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE 306 RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE
294 : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE 307 : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE
295 : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN 308 : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN
296 : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE 309 : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE
297 : angle); 310 : angle);
311 perlinterp_acquire ();
298 OUTPUT: 312 OUTPUT:
299 RETVAL 313 RETVAL
300 314
301GdkPixbuf_noinc * 315GdkPixbuf_noinc *
302load_jpeg (SV *path, int thumbnail=0) 316decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
317 CODE:
318{
319#if WEBP
320 guchar *data;
321 STRLEN data_size;
322 int alpha;
323 WebPDecoderConfig config;
324 int inw, inh;
325
326 data = SvPVbyte (image_data, data_size);
327
328 perlinterp_release ();
329
330 RETVAL = 0;
331
332 if (!WebPInitDecoderConfig (&config))
333 goto err;
334
335 config.options.use_threads = 1;
336
337 if (WebPGetFeatures (data, data_size, &config.input) != VP8_STATUS_OK)
338 goto err;
339
340 inw = config.input.width;
341 inh = config.input.height;
342
343 if (thumbnail)
344 {
345 if (inw * ih > inh * iw)
346 ih = (iw * inh + inw - 1) / inw;
347 else
348 iw = (ih * inw + inh - 1) / inh;
349
350 config.options.bypass_filtering = 1;
351 config.options.no_fancy_upsampling = 1;
352
353 config.options.use_scaling = 1;
354 config.options.scaled_width = iw;
355 config.options.scaled_height = ih;
356 }
357 else
358 {
359 iw = inw;
360 ih = inh;
361 }
362
363 alpha = config.input.has_alpha;
364
365 RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!alpha, 8, iw, ih);
366 if (!RETVAL)
367 goto err;
368
369 config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB;
370 config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL);
371 config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL);
372 config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL);
373 config.output.is_external_memory = 1;
374
375 if (WebPDecode (data, data_size, &config) != VP8_STATUS_OK)
376 {
377 g_object_unref (RETVAL);
378 RETVAL = 0;
379 goto err;
380 }
381
382 err:
383 perlinterp_acquire ();
384#else
385 croak ("load_webp: webp not enabled at compile time");
386#endif
387}
388 OUTPUT:
389 RETVAL
390
391GdkPixbuf_noinc *
392load_jpeg (SV *path, int thumbnail = 0, int iw = 0, int ih = 0)
303 CODE: 393 CODE:
304{ 394{
305 struct jpeg_decompress_struct cinfo; 395 struct jpeg_decompress_struct cinfo;
306 struct jpg_err_mgr jerr; 396 struct jpg_err_mgr jerr;
307 guchar *data; 397 guchar *data;
… …
314 fp = fopen (SvPVbyte_nolen (path), "rb"); 404 fp = fopen (SvPVbyte_nolen (path), "rb");
315 405
316 if (!fp) 406 if (!fp)
317 XSRETURN_UNDEF; 407 XSRETURN_UNDEF;
318 408
409 perlinterp_release ();
410
319 cinfo.err = jpeg_std_error (&jerr.err); 411 cinfo.err = jpeg_std_error (&jerr.err);
320 412
321 jerr.err.error_exit = cv_error_exit; 413 jerr.err.error_exit = cv_error_exit;
322 jerr.err.output_message = cv_error_output; 414 jerr.err.output_message = cv_error_output;
323 415
… …
327 jpeg_destroy_decompress (&cinfo); 419 jpeg_destroy_decompress (&cinfo);
328 420
329 if (pb) 421 if (pb)
330 g_object_unref ((gpointer)pb); 422 g_object_unref ((gpointer)pb);
331 423
424 perlinterp_acquire ();
332 XSRETURN_UNDEF; 425 XSRETURN_UNDEF;
333 } 426 }
334 427
335 jpeg_create_decompress (&cinfo); 428 jpeg_create_decompress (&cinfo);
336 429
… …
352 { 445 {
353 cinfo.dct_method = JDCT_FASTEST; 446 cinfo.dct_method = JDCT_FASTEST;
354 cinfo.do_fancy_upsampling = FALSE; 447 cinfo.do_fancy_upsampling = FALSE;
355 448
356 while (cinfo.scale_denom < 8 449 while (cinfo.scale_denom < 8
357 && cinfo.output_width >= IW*4 450 && cinfo.output_width >= iw*4
358 && cinfo.output_height >= IH*4) 451 && cinfo.output_height >= ih*4)
359 { 452 {
360 cinfo.scale_denom <<= 1; 453 cinfo.scale_denom <<= 1;
361 jpeg_calc_output_dimensions (&cinfo); 454 jpeg_calc_output_dimensions (&cinfo);
362 } 455 }
363 } 456 }
364 457
458 if (cinfo.output_components != 3)
459 longjmp (jerr.setjmp_buffer, 3);
460
461 if (cinfo.jpeg_color_space == JCS_YCCK || cinfo.jpeg_color_space == JCS_CMYK)
462 {
463 cinfo.out_color_space = JCS_CMYK;
464 cinfo.output_components = 4;
465 }
466
365 pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height); 467 pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, cinfo.output_components == 4, 8, cinfo.output_width, cinfo.output_height);
366 if (!RETVAL) 468 if (!RETVAL)
367 longjmp (jerr.setjmp_buffer, 2); 469 longjmp (jerr.setjmp_buffer, 2);
368 470
369 data = gdk_pixbuf_get_pixels (RETVAL); 471 data = gdk_pixbuf_get_pixels (RETVAL);
370 rs = gdk_pixbuf_get_rowstride (RETVAL); 472 rs = gdk_pixbuf_get_rowstride (RETVAL);
371
372 if (cinfo.output_components != 3)
373 longjmp (jerr.setjmp_buffer, 3);
374 473
375 jpeg_start_decompress (&cinfo); 474 jpeg_start_decompress (&cinfo);
376 475
377 while (cinfo.output_scanline < cinfo.output_height) 476 while (cinfo.output_scanline < cinfo.output_height)
378 { 477 {
… …
385 rp [3] = (guchar *)rp [2] + rs; 484 rp [3] = (guchar *)rp [2] + rs;
386 485
387 jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); 486 jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4);
388 } 487 }
389 488
489 if (cinfo.out_color_space == JCS_CMYK)
490 {
491 guchar *end = data + cinfo.output_height * rs;
492
493 while (data < end)
494 {
495 U32 c = data [0];
496 U32 m = data [1];
497 U32 y = data [2];
498 U32 k = data [3];
499
500 if (0)
501 if (cinfo.Adobe_transform == 2)
502 {
503 c ^= 0xff;
504 m ^= 0xff;
505 y ^= 0xff;
506 k ^= 0xff;
507 }
508
509 data [0] = (c * k + 0x80) / 0xff;
510 data [1] = (m * k + 0x80) / 0xff;
511 data [2] = (y * k + 0x80) / 0xff;
512 data [3] = 0xff;
513
514 data += 4;
515 }
516 }
517
390 jpeg_finish_decompress (&cinfo); 518 jpeg_finish_decompress (&cinfo);
391 fclose (fp); 519 fclose (fp);
392 jpeg_destroy_decompress (&cinfo); 520 jpeg_destroy_decompress (&cinfo);
521 perlinterp_acquire ();
393} 522}
394 OUTPUT: 523 OUTPUT:
395 RETVAL 524 RETVAL
396 525
397void 526void
398compare (GdkPixbuf *a, GdkPixbuf *b) 527compare (GdkPixbuf *a, GdkPixbuf *b)
399 PPCODE: 528 PPCODE:
529 perlinterp_release ();
400{ 530{
401 int w = gdk_pixbuf_get_width (a); 531 int w = gdk_pixbuf_get_width (a);
402 int h = gdk_pixbuf_get_height (a); 532 int h = gdk_pixbuf_get_height (a);
533
403 int sa = gdk_pixbuf_get_rowstride (a); 534 int sa = gdk_pixbuf_get_rowstride (a);
404 int sb = gdk_pixbuf_get_rowstride (b); 535 int sb = gdk_pixbuf_get_rowstride (b);
405 536
406 guchar *pa = gdk_pixbuf_get_pixels (a); 537 guchar *pa = gdk_pixbuf_get_pixels (a);
407 guchar *pb = gdk_pixbuf_get_pixels (b); 538 guchar *pb = gdk_pixbuf_get_pixels (b);
… …
430 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); 561 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d));
431 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); 562 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d));
432 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); 563 d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d));
433 } 564 }
434 } 565 }
566
567 perlinterp_acquire ();
435 568
436 EXTEND (SP, 2); 569 EXTEND (SP, 2);
437 PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); 570 PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.)))));
438 PUSHs (sv_2mortal (newSVnv (peak / 255.))); 571 PUSHs (sv_2mortal (newSVnv (peak / 255.)));
439} 572}

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