| 1 | #include "EXTERN.h" |
1 | #include "EXTERN.h" |
| 2 | #include "perl.h" |
2 | #include "perl.h" |
| 3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
| 4 | |
4 | |
|
|
5 | #include <string.h> |
|
|
6 | #include <setjmp.h> |
|
|
7 | #include <math.h> |
|
|
8 | |
|
|
9 | #include <magic.h> |
|
|
10 | |
|
|
11 | #include <jpeglib.h> |
|
|
12 | #include <glib.h> |
|
|
13 | #include <gtk/gtk.h> |
| 5 | #include <gdk-pixbuf/gdk-pixbuf.h> |
14 | #include <gdk-pixbuf/gdk-pixbuf.h> |
| 6 | |
15 | |
| 7 | #include <gperl.h> |
16 | #include <gperl.h> |
| 8 | #include <gtk2perl.h> |
17 | #include <gtk2perl.h> |
| 9 | |
18 | |
|
|
19 | #define IW 80 /* MUST match Schnauzer.pm! */ |
|
|
20 | #define IH 60 /* MUST match Schnauzer.pm! */ |
|
|
21 | |
|
|
22 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
|
|
23 | |
|
|
24 | #define LINELENGTH 240 |
|
|
25 | |
|
|
26 | #define ELLIPSIS "\xe2\x80\xa6" |
|
|
27 | |
|
|
28 | struct jpg_err_mgr |
|
|
29 | { |
|
|
30 | struct jpeg_error_mgr err; |
|
|
31 | jmp_buf setjmp_buffer; |
|
|
32 | }; |
|
|
33 | |
|
|
34 | static void |
|
|
35 | cv_error_exit (j_common_ptr cinfo) |
|
|
36 | { |
|
|
37 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
|
|
38 | } |
|
|
39 | |
|
|
40 | static void |
|
|
41 | cv_error_output (j_common_ptr cinfo) |
|
|
42 | { |
|
|
43 | return; |
|
|
44 | } |
|
|
45 | |
|
|
46 | static void |
|
|
47 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
|
|
48 | unsigned int *h, unsigned int *s, unsigned int *v) |
|
|
49 | { |
|
|
50 | unsigned int mx = r; if (g > mx) mx = g; if (b > mx) mx = b; |
|
|
51 | unsigned int mn = r; if (g < mn) mn = g; if (b < mn) mn = b; |
|
|
52 | unsigned int delta = mx - mn; |
|
|
53 | |
|
|
54 | *v = mx; |
|
|
55 | |
|
|
56 | *s = mx ? delta * 255 / mx : 0; |
|
|
57 | |
|
|
58 | if (delta == 0) |
|
|
59 | *h = 0; |
|
|
60 | else |
|
|
61 | { |
|
|
62 | if (r == mx) |
|
|
63 | *h = ((int)g - (int)b) * 255 / (int)(delta * 3); |
|
|
64 | else if (g == mx) |
|
|
65 | *h = ((int)b - (int)r) * 255 / (int)(delta * 3) + 52; |
|
|
66 | else if (b == mx) |
|
|
67 | *h = ((int)r - (int)g) * 255 / (int)(delta * 3) + 103; |
|
|
68 | |
|
|
69 | *h &= 255; |
|
|
70 | } |
|
|
71 | } |
|
|
72 | |
|
|
73 | struct feature { |
|
|
74 | float v1, v2, v3; // mean, square, cube |
|
|
75 | int n; |
|
|
76 | }; |
|
|
77 | |
|
|
78 | static void |
|
|
79 | feature_init (struct feature *f) |
|
|
80 | { |
|
|
81 | f->v1 = 0.; |
|
|
82 | f->v2 = 0.; |
|
|
83 | f->v3 = 0.; |
|
|
84 | f->n = 0; |
|
|
85 | } |
|
|
86 | |
|
|
87 | // didn't find an algorithm to neatly do mean, variance and skew in one pass. |
|
|
88 | // elmex ist schuld. |
|
|
89 | static void |
|
|
90 | feature_update_pass_1 (struct feature *f, unsigned int v) |
|
|
91 | { |
|
|
92 | f->v1 += v; |
|
|
93 | f->n += 1; |
|
|
94 | } |
|
|
95 | |
|
|
96 | static void |
|
|
97 | feature_finish_pass_1 (struct feature *f) |
|
|
98 | { |
|
|
99 | if (f->n < 1) |
|
|
100 | return; |
|
|
101 | |
|
|
102 | f->v1 /= f->n; |
|
|
103 | } |
|
|
104 | |
|
|
105 | static void |
|
|
106 | feature_update_pass_2 (struct feature *f, unsigned int v) |
|
|
107 | { |
|
|
108 | float d = v - f->v1; |
|
|
109 | |
|
|
110 | f->v2 += d * d; |
|
|
111 | f->v3 += d * d * d; |
|
|
112 | } |
|
|
113 | |
|
|
114 | static void |
|
|
115 | feature_finish_pass_2 (struct feature *f) |
|
|
116 | { |
|
|
117 | if (f->n < 1) |
|
|
118 | return; |
|
|
119 | |
|
|
120 | f->v2 /= f->n; |
|
|
121 | f->v3 /= f->n; |
|
|
122 | |
|
|
123 | f->v1 /= 255.; |
|
|
124 | f->v2 /= 255. * 255.; f->v2 = sqrtf (f->v2); |
|
|
125 | f->v3 /= 255. * 255. * 255.; f->v3 = powf (fabsf (f->v3), 1./3.); |
|
|
126 | } |
|
|
127 | |
| 10 | static guint32 a85_val; |
128 | static guint32 a85_val; |
| 11 | static guint a85_cnt; |
129 | static guint a85_cnt; |
| 12 | static guchar a85_buf[80], *a85_ptr; |
130 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
| 13 | |
131 | |
| 14 | static void |
132 | static void |
| 15 | a85_init (void) |
133 | a85_init (void) |
| 16 | { |
134 | { |
| 17 | a85_cnt = 4; |
135 | a85_cnt = 4; |
| … | |
… | |
| 47 | } |
165 | } |
| 48 | } |
166 | } |
| 49 | |
167 | |
| 50 | } |
168 | } |
| 51 | |
169 | |
|
|
170 | static void |
| 52 | a85_finish (PerlIO *fp) |
171 | a85_finish (PerlIO *fp) |
| 53 | { |
172 | { |
| 54 | while (a85_cnt != 4) |
173 | while (a85_cnt != 4) |
| 55 | a85_push (fp, 0); |
174 | a85_push (fp, 0); |
| 56 | |
175 | |
| … | |
… | |
| 59 | *a85_ptr++ = '\n'; |
178 | *a85_ptr++ = '\n'; |
| 60 | |
179 | |
| 61 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
180 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
| 62 | } |
181 | } |
| 63 | |
182 | |
|
|
183 | ///////////////////////////////////////////////////////////////////////////// |
|
|
184 | |
| 64 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::ImageWindow |
185 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
| 65 | |
186 | |
| 66 | PROTOTYPES: ENABLE |
187 | PROTOTYPES: ENABLE |
| 67 | |
188 | |
|
|
189 | # missing function in perl. really :) |
|
|
190 | int |
|
|
191 | common_prefix_length (a, b) |
|
|
192 | unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); |
|
|
193 | unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); |
|
|
194 | CODE: |
|
|
195 | RETVAL = 0; |
|
|
196 | |
|
|
197 | while (*a == *b && *a) |
|
|
198 | { |
|
|
199 | RETVAL += (*a & 0xc0) != 0x80; |
|
|
200 | a++, b++; |
|
|
201 | } |
|
|
202 | |
|
|
203 | OUTPUT: |
|
|
204 | RETVAL |
|
|
205 | |
|
|
206 | const char * |
|
|
207 | magic (const char *path) |
|
|
208 | CODE: |
|
|
209 | { |
|
|
210 | static magic_t cookie; |
|
|
211 | |
|
|
212 | if (!cookie) |
|
|
213 | { |
|
|
214 | cookie = magic_open (MAGIC_NONE); |
|
|
215 | |
|
|
216 | if (cookie) |
|
|
217 | magic_load (cookie, 0); |
|
|
218 | else |
|
|
219 | XSRETURN_UNDEF; |
|
|
220 | } |
|
|
221 | |
|
|
222 | RETVAL = magic_file (cookie, path); |
|
|
223 | } |
|
|
224 | OUTPUT: |
|
|
225 | RETVAL |
|
|
226 | |
|
|
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/broken in Gtk2 perl module |
|
|
249 | |
|
|
250 | void |
|
|
251 | gdk_window_clear_hints (GdkWindow *window) |
|
|
252 | CODE: |
|
|
253 | gdk_window_set_geometry_hints (window, 0, 0); |
|
|
254 | |
|
|
255 | gboolean |
|
|
256 | gdk_net_wm_supports (GdkAtom property) |
|
|
257 | CODE: |
|
|
258 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
|
|
259 | RETVAL = gdk_net_wm_supports (property); |
|
|
260 | #else |
|
|
261 | RETVAL = 0; |
|
|
262 | #endif |
|
|
263 | OUTPUT: |
|
|
264 | RETVAL |
|
|
265 | |
| 68 | GdkPixbuf_noinc * |
266 | GdkPixbuf_noinc * |
| 69 | transpose (GdkPixbuf *pb) |
267 | dealpha_expose (GdkPixbuf *pb) |
| 70 | CODE: |
268 | CODE: |
| 71 | { |
269 | { |
| 72 | int w = gdk_pixbuf_get_width (pb); |
270 | int w = gdk_pixbuf_get_width (pb); |
| 73 | int h = gdk_pixbuf_get_height (pb); |
271 | int h = gdk_pixbuf_get_height (pb); |
| 74 | int bpp = gdk_pixbuf_get_has_alpha (pb) ? 4 : 3; |
272 | int bpp = gdk_pixbuf_get_n_channels (pb); |
| 75 | int x, y, i; |
273 | int x, y, i; |
| 76 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
274 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
| 77 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
275 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
| 78 | |
276 | |
| 79 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w); |
277 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
| 80 | |
278 | |
| 81 | dst = gdk_pixbuf_get_pixels (RETVAL); |
279 | dst = gdk_pixbuf_get_pixels (RETVAL); |
| 82 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
280 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
| 83 | |
281 | |
| 84 | for (y = 0; y < h; y++) |
|
|
| 85 | for (x = 0; x < w; x++) |
282 | for (x = 0; x < w; x++) |
|
|
283 | for (y = 0; y < h; y++) |
| 86 | for (i = 0; i < bpp; i++) |
284 | for (i = 0; i < 3; i++) |
| 87 | dst[y * bpp + x * dstr + i] = src[x * bpp + y * sstr + i]; |
285 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
| 88 | } |
286 | } |
| 89 | OUTPUT: |
287 | OUTPUT: |
| 90 | RETVAL |
288 | RETVAL |
| 91 | |
289 | |
| 92 | GdkPixbuf_noinc * |
290 | GdkPixbuf_noinc * |
| 93 | flop (GdkPixbuf *pb) |
291 | rotate (GdkPixbuf *pb, int angle) |
| 94 | CODE: |
292 | CODE: |
| 95 | { |
293 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
| 96 | int w = gdk_pixbuf_get_width (pb); |
294 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
| 97 | int h = gdk_pixbuf_get_height (pb); |
295 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
| 98 | int bpp = gdk_pixbuf_get_has_alpha (pb) ? 4 : 3; |
296 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
| 99 | int x, y, i; |
297 | : angle); |
| 100 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
298 | OUTPUT: |
| 101 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
299 | RETVAL |
| 102 | |
300 | |
| 103 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h); |
301 | GdkPixbuf_noinc * |
|
|
302 | load_jpeg (SV *path, int thumbnail=0) |
|
|
303 | CODE: |
|
|
304 | { |
|
|
305 | struct jpeg_decompress_struct cinfo; |
|
|
306 | struct jpg_err_mgr jerr; |
|
|
307 | guchar *data; |
|
|
308 | int rs; |
|
|
309 | FILE *fp; |
|
|
310 | volatile GdkPixbuf *pb = 0; |
| 104 | |
311 | |
|
|
312 | RETVAL = 0; |
|
|
313 | |
|
|
314 | fp = fopen (SvPVbyte_nolen (path), "rb"); |
|
|
315 | |
|
|
316 | if (!fp) |
|
|
317 | XSRETURN_UNDEF; |
|
|
318 | |
|
|
319 | cinfo.err = jpeg_std_error (&jerr.err); |
|
|
320 | |
|
|
321 | jerr.err.error_exit = cv_error_exit; |
|
|
322 | jerr.err.output_message = cv_error_output; |
|
|
323 | |
|
|
324 | if ((rs = setjmp (jerr.setjmp_buffer))) |
|
|
325 | { |
|
|
326 | fclose (fp); |
|
|
327 | jpeg_destroy_decompress (&cinfo); |
|
|
328 | |
|
|
329 | if (pb) |
|
|
330 | g_object_unref ((gpointer)pb); |
|
|
331 | |
|
|
332 | XSRETURN_UNDEF; |
|
|
333 | } |
|
|
334 | |
|
|
335 | jpeg_create_decompress (&cinfo); |
|
|
336 | |
|
|
337 | jpeg_stdio_src (&cinfo, fp); |
|
|
338 | jpeg_read_header (&cinfo, TRUE); |
|
|
339 | |
|
|
340 | cinfo.dct_method = JDCT_DEFAULT; |
|
|
341 | cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ |
|
|
342 | cinfo.do_block_smoothing = FALSE; |
|
|
343 | cinfo.out_color_space = JCS_RGB; |
|
|
344 | cinfo.quantize_colors = FALSE; |
|
|
345 | |
|
|
346 | cinfo.scale_num = 1; |
|
|
347 | cinfo.scale_denom = 1; |
|
|
348 | |
|
|
349 | jpeg_calc_output_dimensions (&cinfo); |
|
|
350 | |
|
|
351 | if (thumbnail) |
|
|
352 | { |
|
|
353 | cinfo.dct_method = JDCT_FASTEST; |
|
|
354 | cinfo.do_fancy_upsampling = FALSE; |
|
|
355 | |
|
|
356 | while (cinfo.scale_denom < 8 |
|
|
357 | && cinfo.output_width >= IW*4 |
|
|
358 | && cinfo.output_height >= IH*4) |
|
|
359 | { |
|
|
360 | cinfo.scale_denom <<= 1; |
|
|
361 | jpeg_calc_output_dimensions (&cinfo); |
|
|
362 | } |
|
|
363 | } |
|
|
364 | |
|
|
365 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height); |
|
|
366 | if (!RETVAL) |
|
|
367 | longjmp (jerr.setjmp_buffer, 2); |
|
|
368 | |
| 105 | dst = gdk_pixbuf_get_pixels (RETVAL); |
369 | data = gdk_pixbuf_get_pixels (RETVAL); |
| 106 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
370 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
| 107 | |
371 | |
|
|
372 | if (cinfo.output_components != 3) |
|
|
373 | longjmp (jerr.setjmp_buffer, 3); |
|
|
374 | |
|
|
375 | jpeg_start_decompress (&cinfo); |
|
|
376 | |
|
|
377 | while (cinfo.output_scanline < cinfo.output_height) |
|
|
378 | { |
|
|
379 | int remaining = cinfo.output_height - cinfo.output_scanline; |
|
|
380 | JSAMPROW rp[4]; |
|
|
381 | |
|
|
382 | rp [0] = data + cinfo.output_scanline * rs; |
|
|
383 | rp [1] = (guchar *)rp [0] + rs; |
|
|
384 | rp [2] = (guchar *)rp [1] + rs; |
|
|
385 | rp [3] = (guchar *)rp [2] + rs; |
|
|
386 | |
|
|
387 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
|
|
388 | } |
|
|
389 | |
|
|
390 | jpeg_finish_decompress (&cinfo); |
|
|
391 | fclose (fp); |
|
|
392 | jpeg_destroy_decompress (&cinfo); |
|
|
393 | } |
|
|
394 | OUTPUT: |
|
|
395 | RETVAL |
|
|
396 | |
|
|
397 | void |
|
|
398 | compare (GdkPixbuf *a, GdkPixbuf *b) |
|
|
399 | PPCODE: |
|
|
400 | { |
|
|
401 | int w = gdk_pixbuf_get_width (a); |
|
|
402 | int h = gdk_pixbuf_get_height (a); |
|
|
403 | int sa = gdk_pixbuf_get_rowstride (a); |
|
|
404 | int sb = gdk_pixbuf_get_rowstride (b); |
|
|
405 | |
|
|
406 | guchar *pa = gdk_pixbuf_get_pixels (a); |
|
|
407 | guchar *pb = gdk_pixbuf_get_pixels (b); |
|
|
408 | |
|
|
409 | int x, y; |
|
|
410 | |
|
|
411 | assert (w == gdk_pixbuf_get_width (b)); |
|
|
412 | assert (h == gdk_pixbuf_get_height (b)); |
|
|
413 | |
|
|
414 | assert (gdk_pixbuf_get_n_channels (a) == 3); |
|
|
415 | assert (gdk_pixbuf_get_n_channels (b) == 3); |
|
|
416 | |
|
|
417 | double diff = 0.; |
|
|
418 | int peak = 0; |
|
|
419 | |
|
|
420 | if (w && h) |
| 108 | for (y = 0; y < h; y++) |
421 | for (y = 0; y < h; y++) |
|
|
422 | { |
|
|
423 | guchar *pa_ = pa + y * sa; |
|
|
424 | guchar *pb_ = pb + y * sb; |
|
|
425 | |
| 109 | for (x = 0; x < w; x++) |
426 | for (x = 0; x < w; x++) |
| 110 | for (i = 0; i < bpp; i++) |
427 | { |
| 111 | dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i]; |
428 | int d; |
|
|
429 | |
|
|
430 | 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)); |
|
|
432 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
433 | } |
|
|
434 | } |
|
|
435 | |
|
|
436 | EXTEND (SP, 2); |
|
|
437 | PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); |
|
|
438 | PUSHs (sv_2mortal (newSVnv (peak / 255.))); |
| 112 | } |
439 | } |
| 113 | OUTPUT: |
440 | |
| 114 | RETVAL |
441 | ############################################################################# |
| 115 | |
442 | |
| 116 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
443 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
| 117 | |
444 | |
|
|
445 | # currently only works for filenames (octet strings) |
|
|
446 | |
|
|
447 | SV * |
|
|
448 | foldcase (SV *pathsv) |
|
|
449 | PROTOTYPE: $ |
|
|
450 | CODE: |
|
|
451 | { |
|
|
452 | STRLEN plen; |
|
|
453 | U8 *path = (U8 *)SvPV (pathsv, plen); |
|
|
454 | U8 *pend = path + plen; |
|
|
455 | U8 dst [plen * 6 * 3], *dstp = dst; |
|
|
456 | |
|
|
457 | while (path < pend) |
|
|
458 | { |
|
|
459 | U8 ch = *path; |
|
|
460 | |
|
|
461 | if (ch >= 'a' && ch <= 'z') |
|
|
462 | *dstp++ = *path++; |
|
|
463 | else if (ch >= 'A' && ch <= 'Z') |
|
|
464 | *dstp++ = *path++ + ('a' - 'A'); |
|
|
465 | else if (ch >= '0' && ch <= '9') |
|
|
466 | { |
|
|
467 | STRLEN el, nl = 0; |
|
|
468 | while (*path >= '0' && *path <= '9' && path < pend) |
|
|
469 | path++, nl++; |
|
|
470 | |
|
|
471 | for (el = nl; el < 6; el++) |
|
|
472 | *dstp++ = '0'; |
|
|
473 | |
|
|
474 | memcpy (dstp, path - nl, nl); |
|
|
475 | dstp += nl; |
|
|
476 | } |
|
|
477 | else |
|
|
478 | *dstp++ = *path++; |
|
|
479 | #if 0 |
|
|
480 | else |
|
|
481 | { |
|
|
482 | STRLEN cl; |
|
|
483 | to_utf8_fold (path, dstp, &cl); |
|
|
484 | dstp += cl; |
|
|
485 | path += is_utf8_char (path); |
|
|
486 | } |
|
|
487 | #endif |
|
|
488 | } |
|
|
489 | |
|
|
490 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
|
|
491 | } |
|
|
492 | OUTPUT: |
|
|
493 | RETVAL |
|
|
494 | |
| 118 | GdkPixbuf_noinc * |
495 | GdkPixbuf_noinc * |
| 119 | p7_to_pb (int w, int h, guchar *src) |
496 | p7_to_pb (int w, int h, SV *src_sv) |
|
|
497 | PROTOTYPE: @ |
| 120 | CODE: |
498 | CODE: |
| 121 | { |
499 | { |
| 122 | int x, y; |
500 | int x, y; |
| 123 | guchar *dst, *d; |
501 | guchar *dst, *d; |
| 124 | int dstr; |
502 | int dstr; |
|
|
503 | guchar *src = (guchar *)SvPVbyte_nolen (src_sv); |
| 125 | |
504 | |
| 126 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
505 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
| 127 | dst = gdk_pixbuf_get_pixels (RETVAL); |
506 | dst = gdk_pixbuf_get_pixels (RETVAL); |
| 128 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
507 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
| 129 | |
508 | |
| … | |
… | |
| 138 | } |
517 | } |
| 139 | } |
518 | } |
| 140 | OUTPUT: |
519 | OUTPUT: |
| 141 | RETVAL |
520 | RETVAL |
| 142 | |
521 | |
|
|
522 | ############################################################################# |
|
|
523 | |
|
|
524 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
|
|
525 | |
|
|
526 | void |
|
|
527 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
|
|
528 | CODE: |
|
|
529 | { |
|
|
530 | int w = gdk_pixbuf_get_width (pb); |
|
|
531 | int h = gdk_pixbuf_get_height (pb); |
|
|
532 | int x, y, i; |
|
|
533 | guchar *dst; |
|
|
534 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
535 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
536 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
537 | |
|
|
538 | a85_init (); |
|
|
539 | |
|
|
540 | for (y = 0; y < h; y++) |
|
|
541 | for (x = 0; x < w; x++) |
|
|
542 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
543 | a85_push (fp, src [x * bpp + y * sstr + i]); |
|
|
544 | |
|
|
545 | a85_finish (fp); |
|
|
546 | } |
|
|
547 | |
|
|
548 | void |
|
|
549 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
|
|
550 | CODE: |
|
|
551 | { |
|
|
552 | int w = gdk_pixbuf_get_width (pb); |
|
|
553 | int h = gdk_pixbuf_get_height (pb); |
|
|
554 | int x, y, i; |
|
|
555 | guchar *dst; |
|
|
556 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
557 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
558 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
559 | |
|
|
560 | for (y = 0; y < h; y++) |
|
|
561 | for (x = 0; x < w; x++) |
|
|
562 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
563 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
|
|
564 | } |
|
|
565 | |
|
|
566 | ############################################################################# |
|
|
567 | |
|
|
568 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
|
|
569 | |
| 143 | SV * |
570 | SV * |
| 144 | pb_to_p7 (GdkPixbuf *pb) |
571 | pb_to_hv84 (GdkPixbuf *pb) |
| 145 | CODE: |
572 | CODE: |
| 146 | { |
573 | { |
| 147 | int w = gdk_pixbuf_get_width (pb); |
574 | int w = gdk_pixbuf_get_width (pb); |
| 148 | int h = gdk_pixbuf_get_height (pb); |
575 | int h = gdk_pixbuf_get_height (pb); |
| 149 | int x, y; |
576 | int x, y; |
| 150 | guchar *dst; |
577 | guchar *dst; |
| 151 | int bpp = gdk_pixbuf_get_has_alpha (pb) ? 4 : 3; |
578 | int bpp = gdk_pixbuf_get_n_channels (pb); |
| 152 | guchar *src = gdk_pixbuf_get_pixels (pb); |
579 | guchar *src = gdk_pixbuf_get_pixels (pb); |
| 153 | int sstr = gdk_pixbuf_get_rowstride (pb); |
580 | int sstr = gdk_pixbuf_get_rowstride (pb); |
| 154 | |
581 | |
| 155 | RETVAL = newSV (w * h); |
582 | RETVAL = newSV (6 * 8 * 12 / 8); |
| 156 | SvPOK_only (RETVAL); |
583 | SvPOK_only (RETVAL); |
| 157 | SvCUR_set (RETVAL, w * h); |
584 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
| 158 | |
585 | |
| 159 | dst = SvPVX (RETVAL); |
586 | dst = (guchar *)SvPVX (RETVAL); |
|
|
587 | |
|
|
588 | /* some primitive error distribution + random dithering */ |
| 160 | |
589 | |
| 161 | for (y = 0; y < h; y++) |
590 | for (y = 0; y < h; y++) |
| 162 | { |
591 | { |
| 163 | /* use a very primitive form of error distribution. */ |
592 | guchar *p = src + y * sstr; |
| 164 | int er = 0, eg = 0, eb = 0; |
|
|
| 165 | |
593 | |
| 166 | for (x = 0; x < w; x++) |
594 | for (x = 0; x < w; x += 2) |
| 167 | { |
595 | { |
| 168 | int r, g, b; |
596 | unsigned int r, g, b, h, s, v, H, V1, V2; |
| 169 | guchar *p = src + x * bpp + y * sstr; |
|
|
| 170 | |
597 | |
| 171 | r = ((p[0] + er) * 7 + 128) / 255; |
598 | if (bpp == 3) |
| 172 | g = ((p[1] + eg) * 7 + 128) / 255; |
599 | r = *p++, g = *p++, b = *p++; |
| 173 | b = ((p[2] + eb) * 3 + 128) / 255; |
600 | else if (bpp == 1) |
|
|
601 | r = g = b = *p++; |
|
|
602 | else |
|
|
603 | abort (); |
| 174 | |
604 | |
| 175 | r = r > 7 ? 7 : r < 0 ? 0 : r; |
605 | rgb_to_hsv (r, g, b, &h, &s, &v); |
| 176 | g = g > 7 ? 7 : g < 0 ? 0 : g; |
|
|
| 177 | b = b > 3 ? 3 : b < 0 ? 0 : b; |
|
|
| 178 | |
606 | |
| 179 | er += p[0] - (r * 255 + 4) / 7; |
607 | H = (h * 15 / 255) << 4; |
| 180 | eg += p[1] - (g * 255 + 4) / 7; |
608 | V1 = v; |
| 181 | eb += p[2] - (b * 255 + 2) / 3; |
|
|
| 182 | |
609 | |
| 183 | *dst++ = r << 5 | g << 2 | b; |
610 | if (bpp == 3) |
|
|
611 | r = *p++, g = *p++, b = *p++; |
|
|
612 | else if (bpp == 1) |
|
|
613 | r = g = b = *p++; |
|
|
614 | else |
|
|
615 | abort (); |
|
|
616 | |
|
|
617 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
618 | |
|
|
619 | H |= h * 15 / 255; |
|
|
620 | V2 = v; |
|
|
621 | |
|
|
622 | *dst++ = H; |
|
|
623 | *dst++ = V1; |
|
|
624 | *dst++ = V2; |
| 184 | } |
625 | } |
| 185 | } |
626 | } |
| 186 | } |
627 | } |
| 187 | OUTPUT: |
628 | OUTPUT: |
| 188 | RETVAL |
629 | RETVAL |
| 189 | |
630 | |
|
|
631 | SV * |
|
|
632 | hv84_to_av (unsigned char *hv84) |
|
|
633 | CODE: |
|
|
634 | { |
|
|
635 | int i = 72 / 3; |
|
|
636 | AV *av = newAV (); |
|
|
637 | |
|
|
638 | RETVAL = (SV *)newRV_noinc ((SV *)av); |
|
|
639 | while (i--) |
|
|
640 | { |
|
|
641 | int h = *hv84++; |
|
|
642 | int v1 = *hv84++; |
|
|
643 | int v2 = *hv84++; |
|
|
644 | |
|
|
645 | av_push (av, newSViv (v1)); |
|
|
646 | av_push (av, newSViv ((h >> 4) * 255 / 15)); |
|
|
647 | av_push (av, newSViv (v2)); |
|
|
648 | av_push (av, newSViv ((h & 15) * 255 / 15)); |
|
|
649 | } |
|
|
650 | } |
|
|
651 | OUTPUT: |
|
|
652 | RETVAL |
|
|
653 | |
|
|
654 | ############################################################################# |
|
|
655 | |
| 190 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
656 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
| 191 | |
657 | |
| 192 | void |
658 | SV * |
| 193 | dump_pb (PerlIO *fp, GdkPixbuf *pb) |
659 | extract_features (SV *ar) |
| 194 | CODE: |
660 | CODE: |
| 195 | { |
661 | { |
| 196 | int w = gdk_pixbuf_get_width (pb); |
662 | int i; |
| 197 | int h = gdk_pixbuf_get_height (pb); |
663 | AV *av, *result; |
| 198 | int x, y, i; |
|
|
| 199 | guchar *dst; |
|
|
| 200 | int bpp = gdk_pixbuf_get_has_alpha (pb) ? 4 : 3; |
|
|
| 201 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
| 202 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
| 203 | |
664 | |
| 204 | a85_init (); |
665 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
|
|
666 | croak ("Not an array ref as first argument to extract_features"); |
| 205 | |
667 | |
| 206 | for (y = 0; y < h; y++) |
668 | av = (AV *) SvRV (ar); |
| 207 | for (x = 0; x < w; x++) |
669 | result = newAV (); |
| 208 | for (i = 0; i < 3; i++) |
|
|
| 209 | a85_push (fp, src [x * bpp + y * sstr + i]); |
|
|
| 210 | |
670 | |
| 211 | a85_finish (fp); |
671 | for (i = 0; i <= av_len (av); ++i) |
| 212 | } |
672 | { |
|
|
673 | SV *sv = *av_fetch (av, i, 1); |
|
|
674 | SV *histsv = newSV (9 * sizeof (float) + 1); |
| 213 | |
675 | |
|
|
676 | SvPOK_on (histsv); |
|
|
677 | SvCUR_set (histsv, 9 * sizeof (float)); |
|
|
678 | float *hist = (float *)SvPVX (histsv); |
| 214 | |
679 | |
|
|
680 | struct feature f_h, f_s, f_v; |
|
|
681 | feature_init (&f_h); |
|
|
682 | feature_init (&f_s); |
|
|
683 | feature_init (&f_v); |
| 215 | |
684 | |
|
|
685 | { |
|
|
686 | STRLEN len; |
|
|
687 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
|
|
688 | while (len >= 3) |
|
|
689 | { |
|
|
690 | unsigned int r, g, b, h, s, v; |
|
|
691 | r = *buf++; g = *buf++; b = *buf++; |
|
|
692 | rgb_to_hsv (r, g, b, &h, &s, &v); |
| 216 | |
693 | |
|
|
694 | feature_update_pass_1 (&f_h, h); |
|
|
695 | feature_update_pass_1 (&f_s, s); |
|
|
696 | feature_update_pass_1 (&f_v, v); |
|
|
697 | |
|
|
698 | len -= 3; |
|
|
699 | } |
|
|
700 | |
|
|
701 | feature_finish_pass_1 (&f_h); |
|
|
702 | feature_finish_pass_1 (&f_s); |
|
|
703 | feature_finish_pass_1 (&f_v); |
|
|
704 | } |
|
|
705 | |
|
|
706 | { |
|
|
707 | STRLEN len; |
|
|
708 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
|
|
709 | while (len >= 3) |
|
|
710 | { |
|
|
711 | unsigned int r, g, b, h, s, v; |
|
|
712 | r = *buf++; g = *buf++; b = *buf++; |
|
|
713 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
714 | |
|
|
715 | feature_update_pass_2 (&f_h, h); |
|
|
716 | feature_update_pass_2 (&f_s, s); |
|
|
717 | feature_update_pass_2 (&f_v, v); |
|
|
718 | |
|
|
719 | len -= 3; |
|
|
720 | } |
|
|
721 | |
|
|
722 | feature_finish_pass_2 (&f_h); |
|
|
723 | feature_finish_pass_2 (&f_s); |
|
|
724 | feature_finish_pass_2 (&f_v); |
|
|
725 | } |
|
|
726 | |
|
|
727 | hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.; |
|
|
728 | hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ; |
|
|
729 | hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5; |
|
|
730 | |
|
|
731 | av_push (result, histsv); |
|
|
732 | } |
|
|
733 | |
|
|
734 | RETVAL = newRV_noinc ((SV *)result); |
|
|
735 | } |
|
|
736 | OUTPUT: |
|
|
737 | RETVAL |
|
|
738 | |
