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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 | |
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65 | |
68 | |
66 | *h &= 255; |
69 | *h &= 255; |
67 | } |
70 | } |
68 | } |
71 | } |
69 | |
72 | |
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73 | struct feature { |
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74 | float v1, v2, v3; // mean, square, cube |
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75 | int n; |
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76 | }; |
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77 | |
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78 | static void |
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79 | feature_init (struct feature *f) |
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80 | { |
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81 | f->v1 = 0.; |
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82 | f->v2 = 0.; |
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83 | f->v3 = 0.; |
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84 | f->n = 0; |
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85 | } |
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86 | |
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87 | // didn't find an algorithm to neatly do mean, variance and skew in one pass. |
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88 | // elmex ist schuld. |
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89 | static void |
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90 | feature_update_pass_1 (struct feature *f, unsigned int v) |
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91 | { |
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92 | f->v1 += v; |
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93 | f->n += 1; |
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94 | } |
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95 | |
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96 | static void |
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97 | feature_finish_pass_1 (struct feature *f) |
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98 | { |
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99 | if (f->n < 1) |
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100 | return; |
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101 | |
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102 | f->v1 /= f->n; |
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103 | } |
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104 | |
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105 | static void |
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106 | feature_update_pass_2 (struct feature *f, unsigned int v) |
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107 | { |
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108 | float d = v - f->v1; |
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109 | |
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110 | f->v2 += d * d; |
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111 | f->v3 += d * d * d; |
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112 | } |
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113 | |
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114 | static void |
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115 | feature_finish_pass_2 (struct feature *f) |
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116 | { |
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117 | if (f->n < 1) |
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118 | return; |
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119 | |
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120 | f->v2 /= f->n; |
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121 | f->v3 /= f->n; |
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122 | |
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123 | f->v1 /= 255.; |
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124 | f->v2 /= 255. * 255.; f->v2 = sqrtf (f->v2); |
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125 | f->v3 /= 255. * 255. * 255.; f->v3 = powf (fabsf (f->v3), 1./3.); |
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126 | } |
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127 | |
70 | static guint32 a85_val; |
128 | static guint32 a85_val; |
71 | static guint a85_cnt; |
129 | static guint a85_cnt; |
72 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
130 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
73 | |
131 | |
74 | static void |
132 | static void |
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126 | |
184 | |
127 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
185 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
128 | |
186 | |
129 | PROTOTYPES: ENABLE |
187 | PROTOTYPES: ENABLE |
130 | |
188 | |
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189 | # missing function in perl. really :) |
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190 | int |
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191 | common_prefix_length (a, b) |
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192 | unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); |
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193 | unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); |
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194 | CODE: |
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195 | RETVAL = 0; |
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196 | |
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197 | while (*a == *b && *a) |
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198 | { |
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199 | RETVAL += (*a & 0xc0) != 0x80; |
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200 | a++, b++; |
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201 | } |
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202 | |
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203 | OUTPUT: |
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204 | RETVAL |
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205 | |
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206 | const char * |
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207 | magic (const char *path) |
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208 | CODE: |
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209 | { |
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210 | static magic_t cookie; |
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211 | |
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212 | if (!cookie) |
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213 | { |
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214 | cookie = magic_open (MAGIC_NONE); |
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215 | |
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216 | if (cookie) |
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217 | magic_load (cookie, 0); |
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218 | else |
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219 | XSRETURN_UNDEF; |
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220 | } |
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221 | |
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222 | RETVAL = magic_file (cookie, path); |
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223 | } |
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224 | OUTPUT: |
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225 | RETVAL |
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226 | |
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227 | const char * |
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228 | magic_mime (const char *path) |
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229 | CODE: |
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230 | { |
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231 | static magic_t cookie; |
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232 | |
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233 | if (!cookie) |
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234 | { |
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235 | cookie = magic_open (MAGIC_MIME); |
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236 | |
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237 | if (cookie) |
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238 | magic_load (cookie, 0); |
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239 | else |
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240 | XSRETURN_UNDEF; |
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241 | } |
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242 | |
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243 | RETVAL = magic_file (cookie, path); |
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244 | } |
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245 | OUTPUT: |
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246 | RETVAL |
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247 | |
131 | # missing in Gtk2 perl module |
248 | # missing in Gtk2 perl module |
132 | |
249 | |
133 | gboolean |
250 | gboolean |
134 | gdk_net_wm_supports (GdkAtom property) |
251 | gdk_net_wm_supports (GdkAtom property) |
135 | CODE: |
252 | CODE: |
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184 | struct jpg_err_mgr jerr; |
301 | struct jpg_err_mgr jerr; |
185 | guchar *data; |
302 | guchar *data; |
186 | int rs; |
303 | int rs; |
187 | FILE *fp; |
304 | FILE *fp; |
188 | volatile GdkPixbuf *pb = 0; |
305 | volatile GdkPixbuf *pb = 0; |
189 | gchar *filename; |
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190 | |
306 | |
191 | RETVAL = 0; |
307 | RETVAL = 0; |
192 | |
308 | |
193 | filename = g_filename_from_utf8 (SvPVutf8_nolen (path), -1, 0, 0, 0); |
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194 | fp = fopen (filename, "rb"); |
309 | fp = fopen (SvPVbyte_nolen (path), "rb"); |
195 | g_free (filename); |
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196 | |
310 | |
197 | if (!fp) |
311 | if (!fp) |
198 | XSRETURN_UNDEF; |
312 | XSRETURN_UNDEF; |
199 | |
313 | |
200 | cinfo.err = jpeg_std_error (&jerr.err); |
314 | cinfo.err = jpeg_std_error (&jerr.err); |
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272 | fclose (fp); |
386 | fclose (fp); |
273 | jpeg_destroy_decompress (&cinfo); |
387 | jpeg_destroy_decompress (&cinfo); |
274 | } |
388 | } |
275 | OUTPUT: |
389 | OUTPUT: |
276 | RETVAL |
390 | RETVAL |
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391 | |
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392 | void |
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393 | compare (GdkPixbuf *a, GdkPixbuf *b) |
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394 | PPCODE: |
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395 | { |
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396 | int w = gdk_pixbuf_get_width (a); |
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397 | int h = gdk_pixbuf_get_height (a); |
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398 | int sa = gdk_pixbuf_get_rowstride (a); |
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399 | int sb = gdk_pixbuf_get_rowstride (b); |
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400 | |
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401 | guchar *pa = gdk_pixbuf_get_pixels (a); |
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402 | guchar *pb = gdk_pixbuf_get_pixels (b); |
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403 | |
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404 | int x, y; |
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405 | |
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406 | assert (w == gdk_pixbuf_get_width (b)); |
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407 | assert (h == gdk_pixbuf_get_height (b)); |
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408 | |
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409 | assert (gdk_pixbuf_get_n_channels (a) == 3); |
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410 | assert (gdk_pixbuf_get_n_channels (b) == 3); |
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411 | |
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412 | double diff = 0.; |
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413 | int peak = 0; |
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414 | |
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415 | if (w && h) |
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416 | for (y = 0; y < h; y++) |
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417 | { |
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418 | guchar *pa_ = pa + y * sa; |
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419 | guchar *pb_ = pb + y * sb; |
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420 | |
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421 | for (x = 0; x < w; x++) |
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422 | { |
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423 | int d; |
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424 | |
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425 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
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426 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
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427 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
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428 | } |
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429 | } |
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430 | |
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431 | EXTEND (SP, 2); |
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432 | PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); |
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433 | PUSHs (sv_2mortal (newSVnv (peak / 255.))); |
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434 | } |
277 | |
435 | |
278 | ############################################################################# |
436 | ############################################################################# |
279 | |
437 | |
280 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
438 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
281 | |
439 | |
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483 | ############################################################################# |
641 | ############################################################################# |
484 | |
642 | |
485 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
643 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
486 | |
644 | |
487 | SV * |
645 | SV * |
488 | make_histograms (SV *ar) |
646 | extract_features (SV *ar) |
489 | CODE: |
647 | CODE: |
490 | { |
648 | { |
491 | int i; |
649 | int i; |
492 | AV *av, *result; |
650 | AV *av, *result; |
493 | |
651 | |
494 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
652 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
495 | croak ("Not an array ref as first argument to make_histogram"); |
653 | croak ("Not an array ref as first argument to extract_features"); |
496 | |
654 | |
497 | av = (AV *) SvRV (ar); |
655 | av = (AV *) SvRV (ar); |
498 | result = newAV (); |
656 | result = newAV (); |
499 | |
657 | |
500 | for (i = 0; i <= av_len (av); ++i) |
658 | for (i = 0; i <= av_len (av); ++i) |
501 | { |
659 | { |
502 | const int HISTSIZE = 64; |
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503 | |
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504 | int j; |
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505 | SV *sv = *av_fetch (av, i, 1); |
660 | SV *sv = *av_fetch (av, i, 1); |
506 | STRLEN len; |
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507 | char *buf = SvPVbyte (sv, len); |
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508 | |
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509 | int tmphist[HISTSIZE]; |
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510 | float *hist; |
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511 | |
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512 | SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); |
661 | SV *histsv = newSV (9 * sizeof (float) + 1); |
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662 | |
513 | SvPOK_on (histsv); |
663 | SvPOK_on (histsv); |
514 | SvCUR_set (histsv, HISTSIZE * sizeof (float)); |
664 | SvCUR_set (histsv, 9 * sizeof (float)); |
515 | hist = (float *)SvPVX (histsv); |
665 | float *hist = (float *)SvPVX (histsv); |
516 | |
666 | |
517 | Zero (tmphist, sizeof (tmphist), char); |
667 | struct feature f_h, f_s, f_v; |
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668 | feature_init (&f_h); |
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669 | feature_init (&f_s); |
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670 | feature_init (&f_v); |
518 | |
671 | |
519 | for (j = len; j--; ) |
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520 | { |
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521 | unsigned int idx |
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522 | = ((*buf & 0xc0) >> 2) |
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523 | | ((*buf & 0x18) >> 1) |
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524 | | (*buf & 0x03); |
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525 | |
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526 | ++tmphist[idx]; |
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527 | ++buf; |
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528 | } |
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529 | |
672 | { |
530 | for (j = 0; j < HISTSIZE; ++j) |
673 | STRLEN len; |
531 | hist[j] = (float)tmphist[j] / (len + 1e-30); |
674 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
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675 | while (len >= 3) |
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676 | { |
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677 | unsigned int r, g, b, h, s, v; |
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678 | r = *buf++; g = *buf++; b = *buf++; |
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679 | rgb_to_hsv (r, g, b, &h, &s, &v); |
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680 | |
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681 | feature_update_pass_1 (&f_h, h); |
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682 | feature_update_pass_1 (&f_s, s); |
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683 | feature_update_pass_1 (&f_v, v); |
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684 | |
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685 | len -= 3; |
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686 | } |
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687 | |
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688 | feature_finish_pass_1 (&f_h); |
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689 | feature_finish_pass_1 (&f_s); |
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690 | feature_finish_pass_1 (&f_v); |
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691 | } |
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692 | |
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693 | { |
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694 | STRLEN len; |
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695 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
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696 | while (len >= 3) |
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697 | { |
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698 | unsigned int r, g, b, h, s, v; |
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699 | r = *buf++; g = *buf++; b = *buf++; |
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700 | rgb_to_hsv (r, g, b, &h, &s, &v); |
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701 | |
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702 | feature_update_pass_2 (&f_h, h); |
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703 | feature_update_pass_2 (&f_s, s); |
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704 | feature_update_pass_2 (&f_v, v); |
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705 | |
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706 | len -= 3; |
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707 | } |
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708 | |
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709 | feature_finish_pass_2 (&f_h); |
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710 | feature_finish_pass_2 (&f_s); |
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711 | feature_finish_pass_2 (&f_v); |
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712 | } |
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713 | |
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714 | hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.; |
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715 | hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ; |
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716 | hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5; |
532 | |
717 | |
533 | av_push (result, histsv); |
718 | av_push (result, histsv); |
534 | } |
719 | } |
535 | |
720 | |
536 | RETVAL = newRV_noinc ((SV *)result); |
721 | RETVAL = newRV_noinc ((SV *)result); |
537 | } |
722 | } |
538 | OUTPUT: |
723 | OUTPUT: |
539 | RETVAL |
724 | RETVAL |
540 | |
725 | |
541 | |
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