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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> |
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8 | |
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9 | #include <magic.h> |
7 | |
10 | |
8 | #include <jpeglib.h> |
11 | #include <jpeglib.h> |
9 | #include <glib.h> |
12 | #include <glib.h> |
10 | #include <gtk/gtk.h> |
13 | #include <gtk/gtk.h> |
11 | #include <gdk-pixbuf/gdk-pixbuf.h> |
14 | #include <gdk-pixbuf/gdk-pixbuf.h> |
12 | |
15 | |
13 | #include <gperl.h> |
16 | #include <gperl.h> |
14 | #include <gtk2perl.h> |
17 | #include <gtk2perl.h> |
15 | |
18 | |
16 | #define IW 80 /* MUST match Schnauer.pm! */ |
19 | #define IW 80 /* MUST match Schnauzer.pm! */ |
17 | #define IH 60 /* MUST match Schnauer.pm! */ |
20 | #define IH 60 /* MUST match Schnauzer.pm! */ |
18 | |
21 | |
19 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
22 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
20 | |
23 | |
21 | #define LINELENGTH 240 |
24 | #define LINELENGTH 240 |
22 | |
25 | |
23 | #define ELLIPSIS "\xe2\x80\xa6" |
26 | #define ELLIPSIS "\xe2\x80\xa6" |
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27 | |
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28 | typedef char *octet_string; |
24 | |
29 | |
25 | struct jpg_err_mgr |
30 | struct jpg_err_mgr |
26 | { |
31 | { |
27 | struct jpeg_error_mgr err; |
32 | struct jpeg_error_mgr err; |
28 | jmp_buf setjmp_buffer; |
33 | jmp_buf setjmp_buffer; |
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65 | |
70 | |
66 | *h &= 255; |
71 | *h &= 255; |
67 | } |
72 | } |
68 | } |
73 | } |
69 | |
74 | |
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75 | struct feature { |
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76 | float v1, v2, v3; // mean, square, cube |
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77 | int n; |
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78 | }; |
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79 | |
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80 | static void |
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81 | feature_init (struct feature *f) |
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82 | { |
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83 | f->v1 = 0.; |
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84 | f->v2 = 0.; |
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85 | f->v3 = 0.; |
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86 | f->n = 0; |
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87 | } |
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88 | |
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89 | // didn't find an algorithm to neatly do mean, variance and skew in one pass. |
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90 | // elmex ist schuld. |
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91 | static void |
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92 | feature_update_pass_1 (struct feature *f, unsigned int v) |
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93 | { |
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94 | f->v1 += v; |
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95 | f->n += 1; |
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96 | } |
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97 | |
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98 | static void |
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99 | feature_finish_pass_1 (struct feature *f) |
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100 | { |
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101 | if (f->n < 1) |
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102 | return; |
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103 | |
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104 | f->v1 /= f->n; |
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105 | } |
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106 | |
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107 | static void |
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108 | feature_update_pass_2 (struct feature *f, unsigned int v) |
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109 | { |
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110 | float d = v - f->v1; |
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111 | |
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112 | f->v2 += d * d; |
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113 | f->v3 += d * d * d; |
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114 | } |
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115 | |
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116 | static void |
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117 | feature_finish_pass_2 (struct feature *f) |
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118 | { |
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119 | if (f->n < 1) |
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120 | return; |
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121 | |
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122 | f->v2 /= f->n; |
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123 | f->v3 /= f->n; |
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124 | |
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125 | f->v1 /= 255.; |
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126 | f->v2 /= 255. * 255.; f->v2 = sqrtf (f->v2); |
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127 | f->v3 /= 255. * 255. * 255.; f->v3 = powf (fabsf (f->v3), 1./3.); |
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128 | } |
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129 | |
70 | static guint32 a85_val; |
130 | static guint32 a85_val; |
71 | static guint a85_cnt; |
131 | static guint a85_cnt; |
72 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
132 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
73 | |
133 | |
74 | static void |
134 | static void |
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… | |
143 | } |
203 | } |
144 | |
204 | |
145 | OUTPUT: |
205 | OUTPUT: |
146 | RETVAL |
206 | RETVAL |
147 | |
207 | |
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208 | const char * |
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209 | magic (octet_string path) |
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210 | CODE: |
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211 | { |
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212 | static magic_t cookie; |
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213 | |
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214 | if (!cookie) |
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215 | { |
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216 | cookie = magic_open (MAGIC_NONE); |
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217 | |
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218 | if (cookie) |
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219 | magic_load (cookie, 0); |
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220 | else |
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221 | XSRETURN_UNDEF; |
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222 | } |
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223 | |
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224 | RETVAL = magic_file (cookie, path); |
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225 | } |
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226 | OUTPUT: |
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227 | RETVAL |
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228 | |
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229 | const char * |
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230 | magic_mime (octet_string path) |
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231 | CODE: |
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232 | { |
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233 | static magic_t cookie; |
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234 | |
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235 | if (!cookie) |
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236 | { |
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237 | cookie = magic_open (MAGIC_MIME); |
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238 | |
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239 | if (cookie) |
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240 | magic_load (cookie, 0); |
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241 | else |
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242 | XSRETURN_UNDEF; |
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243 | } |
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244 | |
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245 | RETVAL = magic_file (cookie, path); |
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246 | } |
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247 | OUTPUT: |
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248 | RETVAL |
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249 | |
148 | # missing in Gtk2 perl module |
250 | # missing/broken in Gtk2 perl module |
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251 | |
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252 | void |
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253 | gdk_window_clear_hints (GdkWindow *window) |
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254 | CODE: |
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255 | gdk_window_set_geometry_hints (window, 0, 0); |
149 | |
256 | |
150 | gboolean |
257 | gboolean |
151 | gdk_net_wm_supports (GdkAtom property) |
258 | gdk_net_wm_supports (GdkAtom property) |
152 | CODE: |
259 | CODE: |
153 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
260 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
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201 | struct jpg_err_mgr jerr; |
308 | struct jpg_err_mgr jerr; |
202 | guchar *data; |
309 | guchar *data; |
203 | int rs; |
310 | int rs; |
204 | FILE *fp; |
311 | FILE *fp; |
205 | volatile GdkPixbuf *pb = 0; |
312 | volatile GdkPixbuf *pb = 0; |
206 | gchar *filename; |
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207 | |
313 | |
208 | RETVAL = 0; |
314 | RETVAL = 0; |
209 | |
315 | |
210 | filename = g_filename_from_utf8 (SvPVutf8_nolen (path), -1, 0, 0, 0); |
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211 | fp = fopen (filename, "rb"); |
316 | fp = fopen (SvPVbyte_nolen (path), "rb"); |
212 | g_free (filename); |
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213 | |
317 | |
214 | if (!fp) |
318 | if (!fp) |
215 | XSRETURN_UNDEF; |
319 | XSRETURN_UNDEF; |
216 | |
320 | |
217 | cinfo.err = jpeg_std_error (&jerr.err); |
321 | cinfo.err = jpeg_std_error (&jerr.err); |
… | |
… | |
290 | jpeg_destroy_decompress (&cinfo); |
394 | jpeg_destroy_decompress (&cinfo); |
291 | } |
395 | } |
292 | OUTPUT: |
396 | OUTPUT: |
293 | RETVAL |
397 | RETVAL |
294 | |
398 | |
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399 | void |
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400 | compare (GdkPixbuf *a, GdkPixbuf *b) |
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401 | PPCODE: |
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402 | { |
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403 | int w = gdk_pixbuf_get_width (a); |
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404 | int h = gdk_pixbuf_get_height (a); |
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405 | int sa = gdk_pixbuf_get_rowstride (a); |
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406 | int sb = gdk_pixbuf_get_rowstride (b); |
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407 | |
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408 | guchar *pa = gdk_pixbuf_get_pixels (a); |
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409 | guchar *pb = gdk_pixbuf_get_pixels (b); |
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410 | |
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411 | int x, y; |
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412 | |
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413 | assert (w == gdk_pixbuf_get_width (b)); |
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414 | assert (h == gdk_pixbuf_get_height (b)); |
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415 | |
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416 | assert (gdk_pixbuf_get_n_channels (a) == 3); |
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417 | assert (gdk_pixbuf_get_n_channels (b) == 3); |
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418 | |
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419 | double diff = 0.; |
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420 | int peak = 0; |
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421 | |
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422 | if (w && h) |
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423 | for (y = 0; y < h; y++) |
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424 | { |
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425 | guchar *pa_ = pa + y * sa; |
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426 | guchar *pb_ = pb + y * sb; |
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427 | |
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428 | for (x = 0; x < w; x++) |
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429 | { |
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430 | int d; |
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431 | |
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432 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
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433 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
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434 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
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435 | } |
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436 | } |
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437 | |
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438 | EXTEND (SP, 2); |
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439 | PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); |
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440 | PUSHs (sv_2mortal (newSVnv (peak / 255.))); |
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441 | } |
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442 | |
295 | ############################################################################# |
443 | ############################################################################# |
296 | |
444 | |
297 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
445 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
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446 | |
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447 | # currently only works for filenames (octet strings) |
298 | |
448 | |
299 | SV * |
449 | SV * |
300 | foldcase (SV *pathsv) |
450 | foldcase (SV *pathsv) |
301 | PROTOTYPE: $ |
451 | PROTOTYPE: $ |
302 | CODE: |
452 | CODE: |
303 | { |
453 | { |
304 | STRLEN plen; |
454 | STRLEN plen; |
305 | U8 *path = (U8 *)SvPVutf8 (pathsv, plen); |
455 | U8 *path = (U8 *)SvPV (pathsv, plen); |
306 | U8 *pend = path + plen; |
456 | U8 *pend = path + plen; |
307 | U8 dst [plen * 6 * 3], *dstp = dst; |
457 | U8 dst [plen * 6 * 3], *dstp = dst; |
308 | |
458 | |
309 | while (path < pend) |
459 | while (path < pend) |
310 | { |
460 | { |
311 | U8 ch = *path; |
461 | U8 ch = *path; |
312 | |
462 | |
313 | if (ch >= 'a' && ch <= 'z') |
463 | if (ch >= 'a' && ch <= 'z') |
314 | *dstp++ = *path++; |
464 | *dstp++ = *path++; |
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465 | else if (ch >= 'A' && ch <= 'Z') |
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466 | *dstp++ = *path++ + ('a' - 'A'); |
315 | else if (ch >= '0' && ch <= '9') |
467 | else if (ch >= '0' && ch <= '9') |
316 | { |
468 | { |
317 | STRLEN el, nl = 0; |
469 | STRLEN el, nl = 0; |
318 | while (*path >= '0' && *path <= '9' && path < pend) |
470 | while (*path >= '0' && *path <= '9' && path < pend) |
319 | path++, nl++; |
471 | path++, nl++; |
… | |
… | |
322 | *dstp++ = '0'; |
474 | *dstp++ = '0'; |
323 | |
475 | |
324 | memcpy (dstp, path - nl, nl); |
476 | memcpy (dstp, path - nl, nl); |
325 | dstp += nl; |
477 | dstp += nl; |
326 | } |
478 | } |
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479 | else |
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480 | *dstp++ = *path++; |
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481 | #if 0 |
327 | else |
482 | else |
328 | { |
483 | { |
329 | STRLEN cl; |
484 | STRLEN cl; |
330 | to_utf8_fold (path, dstp, &cl); |
485 | to_utf8_fold (path, dstp, &cl); |
331 | dstp += cl; |
486 | dstp += cl; |
332 | path += is_utf8_char (path); |
487 | path += is_utf8_char (path); |
333 | } |
488 | } |
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489 | #endif |
334 | } |
490 | } |
335 | |
491 | |
336 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
492 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
337 | } |
493 | } |
338 | OUTPUT: |
494 | OUTPUT: |
… | |
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500 | ############################################################################# |
656 | ############################################################################# |
501 | |
657 | |
502 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
658 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
503 | |
659 | |
504 | SV * |
660 | SV * |
505 | make_histograms (SV *ar) |
661 | extract_features (SV *ar) |
506 | CODE: |
662 | CODE: |
507 | { |
663 | { |
508 | int i; |
664 | int i; |
509 | AV *av, *result; |
665 | AV *av, *result; |
510 | |
666 | |
511 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
667 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
512 | croak ("Not an array ref as first argument to make_histogram"); |
668 | croak ("Not an array ref as first argument to extract_features"); |
513 | |
669 | |
514 | av = (AV *) SvRV (ar); |
670 | av = (AV *) SvRV (ar); |
515 | result = newAV (); |
671 | result = newAV (); |
516 | |
672 | |
517 | for (i = 0; i <= av_len (av); ++i) |
673 | for (i = 0; i <= av_len (av); ++i) |
518 | { |
674 | { |
519 | const int HISTSIZE = 64; |
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520 | |
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521 | int j; |
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522 | SV *sv = *av_fetch (av, i, 1); |
675 | SV *sv = *av_fetch (av, i, 1); |
523 | STRLEN len; |
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524 | char *buf = SvPVbyte (sv, len); |
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525 | |
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526 | int tmphist[HISTSIZE]; |
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527 | float *hist; |
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528 | |
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529 | SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); |
676 | SV *histsv = newSV (9 * sizeof (float) + 1); |
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677 | |
530 | SvPOK_on (histsv); |
678 | SvPOK_on (histsv); |
531 | SvCUR_set (histsv, HISTSIZE * sizeof (float)); |
679 | SvCUR_set (histsv, 9 * sizeof (float)); |
532 | hist = (float *)SvPVX (histsv); |
680 | float *hist = (float *)SvPVX (histsv); |
533 | |
681 | |
534 | Zero (tmphist, sizeof (tmphist), char); |
682 | struct feature f_h, f_s, f_v; |
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683 | feature_init (&f_h); |
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684 | feature_init (&f_s); |
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685 | feature_init (&f_v); |
535 | |
686 | |
536 | for (j = len; j--; ) |
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537 | { |
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538 | unsigned int idx |
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539 | = ((*buf & 0xc0) >> 2) |
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540 | | ((*buf & 0x18) >> 1) |
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541 | | (*buf & 0x03); |
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542 | |
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543 | ++tmphist[idx]; |
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544 | ++buf; |
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545 | } |
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546 | |
687 | { |
547 | for (j = 0; j < HISTSIZE; ++j) |
688 | STRLEN len; |
548 | hist[j] = (float)tmphist[j] / (len + 1e-30); |
689 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
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690 | while (len >= 3) |
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691 | { |
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692 | unsigned int r, g, b, h, s, v; |
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693 | r = *buf++; g = *buf++; b = *buf++; |
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694 | rgb_to_hsv (r, g, b, &h, &s, &v); |
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695 | |
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696 | feature_update_pass_1 (&f_h, h); |
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697 | feature_update_pass_1 (&f_s, s); |
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698 | feature_update_pass_1 (&f_v, v); |
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699 | |
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700 | len -= 3; |
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701 | } |
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702 | |
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703 | feature_finish_pass_1 (&f_h); |
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704 | feature_finish_pass_1 (&f_s); |
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705 | feature_finish_pass_1 (&f_v); |
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706 | } |
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707 | |
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708 | { |
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709 | STRLEN len; |
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710 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
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711 | while (len >= 3) |
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712 | { |
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713 | unsigned int r, g, b, h, s, v; |
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714 | r = *buf++; g = *buf++; b = *buf++; |
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715 | rgb_to_hsv (r, g, b, &h, &s, &v); |
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716 | |
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717 | feature_update_pass_2 (&f_h, h); |
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718 | feature_update_pass_2 (&f_s, s); |
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719 | feature_update_pass_2 (&f_v, v); |
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720 | |
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721 | len -= 3; |
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722 | } |
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723 | |
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724 | feature_finish_pass_2 (&f_h); |
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725 | feature_finish_pass_2 (&f_s); |
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726 | feature_finish_pass_2 (&f_v); |
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727 | } |
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728 | |
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729 | hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.; |
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730 | hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ; |
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731 | hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5; |
549 | |
732 | |
550 | av_push (result, histsv); |
733 | av_push (result, histsv); |
551 | } |
734 | } |
552 | |
735 | |
553 | RETVAL = newRV_noinc ((SV *)result); |
736 | RETVAL = newRV_noinc ((SV *)result); |
554 | } |
737 | } |
555 | OUTPUT: |
738 | OUTPUT: |
556 | RETVAL |
739 | RETVAL |
557 | |
740 | |
558 | |
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