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2 | #include "perl.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
4 | |
4 | |
5 | #include <string.h> |
5 | #include <string.h> |
6 | #include <setjmp.h> |
6 | #include <setjmp.h> |
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7 | #include <math.h> |
7 | |
8 | |
8 | #include <magic.h> |
9 | #include <magic.h> |
9 | |
10 | |
10 | #include <jpeglib.h> |
11 | #include <jpeglib.h> |
11 | #include <glib.h> |
12 | #include <glib.h> |
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… | |
13 | #include <gdk-pixbuf/gdk-pixbuf.h> |
14 | #include <gdk-pixbuf/gdk-pixbuf.h> |
14 | |
15 | |
15 | #include <gperl.h> |
16 | #include <gperl.h> |
16 | #include <gtk2perl.h> |
17 | #include <gtk2perl.h> |
17 | |
18 | |
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19 | #include <assert.h> |
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20 | |
18 | #define IW 80 /* MUST match Schnauer.pm! */ |
21 | #define IW 80 /* MUST match Schnauzer.pm! */ |
19 | #define IH 60 /* MUST match Schnauer.pm! */ |
22 | #define IH 60 /* MUST match Schnauzer.pm! */ |
20 | |
23 | |
21 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
24 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
22 | |
25 | |
23 | #define LINELENGTH 240 |
26 | #define LINELENGTH 240 |
24 | |
27 | |
25 | #define ELLIPSIS "\xe2\x80\xa6" |
28 | #define ELLIPSIS "\xe2\x80\xa6" |
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29 | |
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30 | typedef char *octet_string; |
26 | |
31 | |
27 | struct jpg_err_mgr |
32 | struct jpg_err_mgr |
28 | { |
33 | { |
29 | struct jpeg_error_mgr err; |
34 | struct jpeg_error_mgr err; |
30 | jmp_buf setjmp_buffer; |
35 | jmp_buf setjmp_buffer; |
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… | |
67 | |
72 | |
68 | *h &= 255; |
73 | *h &= 255; |
69 | } |
74 | } |
70 | } |
75 | } |
71 | |
76 | |
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77 | struct feature { |
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78 | float v1, v2, v3; // mean, square, cube |
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79 | int n; |
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80 | }; |
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81 | |
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82 | static void |
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83 | feature_init (struct feature *f) |
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84 | { |
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85 | f->v1 = 0.; |
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86 | f->v2 = 0.; |
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87 | f->v3 = 0.; |
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88 | f->n = 0; |
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89 | } |
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90 | |
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91 | // didn't find an algorithm to neatly do mean, variance and skew in one pass. |
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92 | // elmex ist schuld. |
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93 | static void |
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94 | feature_update_pass_1 (struct feature *f, unsigned int v) |
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95 | { |
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96 | f->v1 += v; |
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97 | f->n += 1; |
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98 | } |
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99 | |
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100 | static void |
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101 | feature_finish_pass_1 (struct feature *f) |
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102 | { |
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103 | if (f->n < 1) |
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104 | return; |
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105 | |
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106 | f->v1 /= f->n; |
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107 | } |
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108 | |
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109 | static void |
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110 | feature_update_pass_2 (struct feature *f, unsigned int v) |
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111 | { |
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112 | float d = v - f->v1; |
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113 | |
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114 | f->v2 += d * d; |
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115 | f->v3 += d * d * d; |
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116 | } |
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117 | |
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118 | static void |
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119 | feature_finish_pass_2 (struct feature *f) |
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120 | { |
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121 | if (f->n < 1) |
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122 | return; |
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123 | |
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124 | f->v2 /= f->n; |
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125 | f->v3 /= f->n; |
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126 | |
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127 | f->v1 /= 255.; |
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128 | f->v2 /= 255. * 255.; f->v2 = sqrtf (f->v2); |
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129 | f->v3 /= 255. * 255. * 255.; f->v3 = powf (fabsf (f->v3), 1./3.); |
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130 | } |
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131 | |
72 | static guint32 a85_val; |
132 | static guint32 a85_val; |
73 | static guint a85_cnt; |
133 | static guint a85_cnt; |
74 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
134 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
75 | |
135 | |
76 | static void |
136 | static void |
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… | |
146 | |
206 | |
147 | OUTPUT: |
207 | OUTPUT: |
148 | RETVAL |
208 | RETVAL |
149 | |
209 | |
150 | const char * |
210 | const char * |
151 | magic (const char *path) |
211 | magic (octet_string path) |
152 | CODE: |
212 | CODE: |
153 | { |
213 | { |
154 | static magic_t cookie; |
214 | static magic_t cookie; |
155 | |
215 | |
156 | if (!cookie) |
216 | if (!cookie) |
157 | { |
217 | { |
158 | cookie = magic_open (MAGIC_MIME); |
218 | cookie = magic_open (MAGIC_SYMLINK); |
159 | |
219 | |
160 | if (cookie) |
220 | if (cookie) |
161 | magic_load (cookie, 0); |
221 | magic_load (cookie, 0); |
162 | else |
222 | else |
163 | XSRETURN_UNDEF; |
223 | XSRETURN_UNDEF; |
… | |
… | |
166 | RETVAL = magic_file (cookie, path); |
226 | RETVAL = magic_file (cookie, path); |
167 | } |
227 | } |
168 | OUTPUT: |
228 | OUTPUT: |
169 | RETVAL |
229 | RETVAL |
170 | |
230 | |
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231 | const char * |
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232 | magic_mime (octet_string path) |
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233 | CODE: |
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234 | { |
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235 | static magic_t cookie; |
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236 | |
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237 | if (!cookie) |
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238 | { |
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239 | cookie = magic_open (MAGIC_MIME | MAGIC_SYMLINK); |
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240 | |
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241 | if (cookie) |
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242 | magic_load (cookie, 0); |
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243 | else |
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244 | XSRETURN_UNDEF; |
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245 | } |
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246 | |
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247 | RETVAL = magic_file (cookie, path); |
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248 | } |
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249 | OUTPUT: |
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250 | RETVAL |
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251 | |
171 | # missing in Gtk2 perl module |
252 | # missing/broken in Gtk2 perl module |
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253 | |
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254 | void |
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255 | gdk_window_clear_hints (GdkWindow *window) |
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256 | CODE: |
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257 | gdk_window_set_geometry_hints (window, 0, 0); |
172 | |
258 | |
173 | gboolean |
259 | gboolean |
174 | gdk_net_wm_supports (GdkAtom property) |
260 | gdk_net_wm_supports (GdkAtom property) |
175 | CODE: |
261 | CODE: |
176 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
262 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
… | |
… | |
206 | RETVAL |
292 | RETVAL |
207 | |
293 | |
208 | GdkPixbuf_noinc * |
294 | GdkPixbuf_noinc * |
209 | rotate (GdkPixbuf *pb, int angle) |
295 | rotate (GdkPixbuf *pb, int angle) |
210 | CODE: |
296 | CODE: |
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297 | if (angle < 0) |
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298 | angle += 360; |
211 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
299 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
212 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
300 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
213 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
301 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
214 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
302 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
215 | : angle); |
303 | : angle); |
… | |
… | |
310 | jpeg_destroy_decompress (&cinfo); |
398 | jpeg_destroy_decompress (&cinfo); |
311 | } |
399 | } |
312 | OUTPUT: |
400 | OUTPUT: |
313 | RETVAL |
401 | RETVAL |
314 | |
402 | |
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403 | void |
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404 | compare (GdkPixbuf *a, GdkPixbuf *b) |
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405 | PPCODE: |
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406 | { |
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407 | int w = gdk_pixbuf_get_width (a); |
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408 | int h = gdk_pixbuf_get_height (a); |
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409 | |
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410 | int sa = gdk_pixbuf_get_rowstride (a); |
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411 | int sb = gdk_pixbuf_get_rowstride (b); |
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412 | |
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413 | guchar *pa = gdk_pixbuf_get_pixels (a); |
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414 | guchar *pb = gdk_pixbuf_get_pixels (b); |
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415 | |
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416 | int x, y; |
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417 | |
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418 | assert (w == gdk_pixbuf_get_width (b)); |
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419 | assert (h == gdk_pixbuf_get_height (b)); |
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420 | |
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421 | assert (gdk_pixbuf_get_n_channels (a) == 3); |
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422 | assert (gdk_pixbuf_get_n_channels (b) == 3); |
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423 | |
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424 | double diff = 0.; |
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425 | int peak = 0; |
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426 | |
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427 | if (w && h) |
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428 | for (y = 0; y < h; y++) |
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429 | { |
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430 | guchar *pa_ = pa + y * sa; |
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431 | guchar *pb_ = pb + y * sb; |
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432 | |
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433 | for (x = 0; x < w; x++) |
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434 | { |
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435 | int d; |
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436 | |
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437 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
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438 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
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439 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
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440 | } |
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441 | } |
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442 | |
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443 | EXTEND (SP, 2); |
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444 | PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); |
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445 | PUSHs (sv_2mortal (newSVnv (peak / 255.))); |
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446 | } |
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447 | |
315 | ############################################################################# |
448 | ############################################################################# |
316 | |
449 | |
317 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
450 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
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451 | |
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452 | # currently only works for filenames (octet strings) |
318 | |
453 | |
319 | SV * |
454 | SV * |
320 | foldcase (SV *pathsv) |
455 | foldcase (SV *pathsv) |
321 | PROTOTYPE: $ |
456 | PROTOTYPE: $ |
322 | CODE: |
457 | CODE: |
323 | { |
458 | { |
324 | STRLEN plen; |
459 | STRLEN plen; |
325 | U8 *path = (U8 *)SvPVutf8 (pathsv, plen); |
460 | U8 *path = (U8 *)SvPV (pathsv, plen); |
326 | U8 *pend = path + plen; |
461 | U8 *pend = path + plen; |
327 | U8 dst [plen * 6 * 3], *dstp = dst; |
462 | U8 dst [plen * 6 * 3], *dstp = dst; |
328 | |
463 | |
329 | while (path < pend) |
464 | while (path < pend) |
330 | { |
465 | { |
331 | U8 ch = *path; |
466 | U8 ch = *path; |
332 | |
467 | |
333 | if (ch >= 'a' && ch <= 'z') |
468 | if (ch >= 'a' && ch <= 'z') |
334 | *dstp++ = *path++; |
469 | *dstp++ = *path++; |
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470 | else if (ch >= 'A' && ch <= 'Z') |
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471 | *dstp++ = *path++ + ('a' - 'A'); |
335 | else if (ch >= '0' && ch <= '9') |
472 | else if (ch >= '0' && ch <= '9') |
336 | { |
473 | { |
337 | STRLEN el, nl = 0; |
474 | STRLEN el, nl = 0; |
338 | while (*path >= '0' && *path <= '9' && path < pend) |
475 | while (*path >= '0' && *path <= '9' && path < pend) |
339 | path++, nl++; |
476 | path++, nl++; |
… | |
… | |
342 | *dstp++ = '0'; |
479 | *dstp++ = '0'; |
343 | |
480 | |
344 | memcpy (dstp, path - nl, nl); |
481 | memcpy (dstp, path - nl, nl); |
345 | dstp += nl; |
482 | dstp += nl; |
346 | } |
483 | } |
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484 | else |
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485 | *dstp++ = *path++; |
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486 | #if 0 |
347 | else |
487 | else |
348 | { |
488 | { |
349 | STRLEN cl; |
489 | STRLEN cl; |
350 | to_utf8_fold (path, dstp, &cl); |
490 | to_utf8_fold (path, dstp, &cl); |
351 | dstp += cl; |
491 | dstp += cl; |
352 | path += is_utf8_char (path); |
492 | path += is_utf8_char (path); |
353 | } |
493 | } |
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494 | #endif |
354 | } |
495 | } |
355 | |
496 | |
356 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
497 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
357 | } |
498 | } |
358 | OUTPUT: |
499 | OUTPUT: |
… | |
… | |
520 | ############################################################################# |
661 | ############################################################################# |
521 | |
662 | |
522 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
663 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
523 | |
664 | |
524 | SV * |
665 | SV * |
525 | make_histograms (SV *ar) |
666 | extract_features (SV *ar) |
526 | CODE: |
667 | CODE: |
527 | { |
668 | { |
528 | int i; |
669 | int i; |
529 | AV *av, *result; |
670 | AV *av, *result; |
530 | |
671 | |
531 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
672 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
532 | croak ("Not an array ref as first argument to make_histogram"); |
673 | croak ("Not an array ref as first argument to extract_features"); |
533 | |
674 | |
534 | av = (AV *) SvRV (ar); |
675 | av = (AV *) SvRV (ar); |
535 | result = newAV (); |
676 | result = newAV (); |
536 | |
677 | |
537 | for (i = 0; i <= av_len (av); ++i) |
678 | for (i = 0; i <= av_len (av); ++i) |
538 | { |
679 | { |
539 | const int HISTSIZE = 64; |
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540 | |
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541 | int j; |
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542 | SV *sv = *av_fetch (av, i, 1); |
680 | SV *sv = *av_fetch (av, i, 1); |
543 | STRLEN len; |
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544 | char *buf = SvPVbyte (sv, len); |
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545 | |
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546 | int tmphist[HISTSIZE]; |
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547 | float *hist; |
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548 | |
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549 | SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); |
681 | SV *histsv = newSV (9 * sizeof (float) + 1); |
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682 | |
550 | SvPOK_on (histsv); |
683 | SvPOK_on (histsv); |
551 | SvCUR_set (histsv, HISTSIZE * sizeof (float)); |
684 | SvCUR_set (histsv, 9 * sizeof (float)); |
552 | hist = (float *)SvPVX (histsv); |
685 | float *hist = (float *)SvPVX (histsv); |
553 | |
686 | |
554 | Zero (tmphist, sizeof (tmphist), char); |
687 | struct feature f_h, f_s, f_v; |
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688 | feature_init (&f_h); |
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689 | feature_init (&f_s); |
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690 | feature_init (&f_v); |
555 | |
691 | |
556 | for (j = len; j--; ) |
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557 | { |
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558 | unsigned int idx |
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559 | = ((*buf & 0xc0) >> 2) |
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560 | | ((*buf & 0x18) >> 1) |
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561 | | (*buf & 0x03); |
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562 | |
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563 | ++tmphist[idx]; |
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564 | ++buf; |
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565 | } |
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566 | |
692 | { |
567 | for (j = 0; j < HISTSIZE; ++j) |
693 | STRLEN len; |
568 | hist[j] = (float)tmphist[j] / (len + 1e-30); |
694 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
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695 | while (len >= 3) |
|
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696 | { |
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697 | unsigned int r, g, b, h, s, v; |
|
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698 | r = *buf++; g = *buf++; b = *buf++; |
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699 | rgb_to_hsv (r, g, b, &h, &s, &v); |
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700 | |
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701 | feature_update_pass_1 (&f_h, h); |
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702 | feature_update_pass_1 (&f_s, s); |
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703 | feature_update_pass_1 (&f_v, v); |
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704 | |
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705 | len -= 3; |
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706 | } |
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707 | |
|
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708 | feature_finish_pass_1 (&f_h); |
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709 | feature_finish_pass_1 (&f_s); |
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710 | feature_finish_pass_1 (&f_v); |
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711 | } |
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712 | |
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713 | { |
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714 | STRLEN len; |
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715 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
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716 | while (len >= 3) |
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717 | { |
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718 | unsigned int r, g, b, h, s, v; |
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719 | r = *buf++; g = *buf++; b = *buf++; |
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720 | rgb_to_hsv (r, g, b, &h, &s, &v); |
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721 | |
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722 | feature_update_pass_2 (&f_h, h); |
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723 | feature_update_pass_2 (&f_s, s); |
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724 | feature_update_pass_2 (&f_v, v); |
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725 | |
|
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726 | len -= 3; |
|
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727 | } |
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728 | |
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729 | feature_finish_pass_2 (&f_h); |
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730 | feature_finish_pass_2 (&f_s); |
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731 | feature_finish_pass_2 (&f_v); |
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732 | } |
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733 | |
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734 | hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.; |
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735 | hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ; |
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736 | hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5; |
569 | |
737 | |
570 | av_push (result, histsv); |
738 | av_push (result, histsv); |
571 | } |
739 | } |
572 | |
740 | |
573 | RETVAL = newRV_noinc ((SV *)result); |
741 | RETVAL = newRV_noinc ((SV *)result); |
574 | } |
742 | } |
575 | OUTPUT: |
743 | OUTPUT: |
576 | RETVAL |
744 | RETVAL |
577 | |
745 | |
578 | |
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