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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> |
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12 | #include <glib.h> |
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13 | #include <gtk/gtk.h> |
9 | #include <gdk-pixbuf/gdk-pixbuf.h> |
14 | #include <gdk-pixbuf/gdk-pixbuf.h> |
10 | |
15 | |
11 | #include <gperl.h> |
16 | #include <gperl.h> |
12 | #include <gtk2perl.h> |
17 | #include <gtk2perl.h> |
13 | |
18 | |
14 | #define IW 80 /* MUST match Schnauer.pm! */ |
19 | #define IW 80 /* MUST match Schnauzer.pm! */ |
15 | #define IH 60 /* MUST match Schnauer.pm! */ |
20 | #define IH 60 /* MUST match Schnauzer.pm! */ |
16 | |
21 | |
17 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
22 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
18 | |
23 | |
19 | #define LINELENGTH 240 |
24 | #define LINELENGTH 240 |
20 | |
25 | |
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63 | |
68 | |
64 | *h &= 255; |
69 | *h &= 255; |
65 | } |
70 | } |
66 | } |
71 | } |
67 | |
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 | |
68 | static guint32 a85_val; |
128 | static guint32 a85_val; |
69 | static guint a85_cnt; |
129 | static guint a85_cnt; |
70 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
130 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
71 | |
131 | |
72 | static void |
132 | static void |
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… | |
124 | |
184 | |
125 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
185 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
126 | |
186 | |
127 | PROTOTYPES: ENABLE |
187 | PROTOTYPES: ENABLE |
128 | |
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 | |
129 | # missing in Gtk2 perl module |
248 | # missing in Gtk2 perl module |
130 | |
249 | |
131 | gboolean |
250 | gboolean |
132 | gdk_net_wm_supports (GdkAtom property) |
251 | gdk_net_wm_supports (GdkAtom property) |
133 | CODE: |
252 | CODE: |
… | |
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138 | #endif |
257 | #endif |
139 | OUTPUT: |
258 | OUTPUT: |
140 | RETVAL |
259 | RETVAL |
141 | |
260 | |
142 | GdkPixbuf_noinc * |
261 | GdkPixbuf_noinc * |
143 | transpose (GdkPixbuf *pb) |
262 | dealpha_expose (GdkPixbuf *pb) |
144 | CODE: |
263 | CODE: |
145 | { |
264 | { |
146 | int w = gdk_pixbuf_get_width (pb); |
265 | int w = gdk_pixbuf_get_width (pb); |
147 | int h = gdk_pixbuf_get_height (pb); |
266 | int h = gdk_pixbuf_get_height (pb); |
148 | int bpp = gdk_pixbuf_get_n_channels (pb); |
267 | int bpp = gdk_pixbuf_get_n_channels (pb); |
149 | int x, y, i; |
268 | int x, y, i; |
150 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
269 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
151 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
270 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
152 | |
271 | |
153 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w); |
272 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
154 | |
273 | |
155 | dst = gdk_pixbuf_get_pixels (RETVAL); |
274 | dst = gdk_pixbuf_get_pixels (RETVAL); |
156 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
275 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
157 | |
276 | |
158 | for (y = 0; y < h; y++) |
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159 | for (x = 0; x < w; x++) |
277 | for (x = 0; x < w; x++) |
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278 | for (y = 0; y < h; y++) |
160 | for (i = 0; i < bpp; i++) |
279 | for (i = 0; i < 3; i++) |
161 | dst[y * bpp + x * dstr + i] = src[x * bpp + y * sstr + i]; |
280 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
162 | } |
281 | } |
163 | OUTPUT: |
282 | OUTPUT: |
164 | RETVAL |
283 | RETVAL |
165 | |
284 | |
166 | GdkPixbuf_noinc * |
285 | GdkPixbuf_noinc * |
167 | flop (GdkPixbuf *pb) |
286 | rotate (GdkPixbuf *pb, int angle) |
168 | CODE: |
287 | CODE: |
169 | { |
288 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
170 | int w = gdk_pixbuf_get_width (pb); |
289 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
171 | int h = gdk_pixbuf_get_height (pb); |
290 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
172 | int bpp = gdk_pixbuf_get_n_channels (pb); |
291 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
173 | int x, y, i; |
292 | : angle); |
174 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
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175 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
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176 | |
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177 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h); |
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178 | |
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179 | dst = gdk_pixbuf_get_pixels (RETVAL); |
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180 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
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181 | |
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182 | for (y = 0; y < h; y++) |
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183 | for (x = 0; x < w; x++) |
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184 | for (i = 0; i < bpp; i++) |
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185 | dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i]; |
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186 | } |
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187 | OUTPUT: |
293 | OUTPUT: |
188 | RETVAL |
294 | RETVAL |
189 | |
295 | |
190 | GdkPixbuf_noinc * |
296 | GdkPixbuf_noinc * |
191 | load_jpeg (char *path, int thumbnail=0) |
297 | load_jpeg (SV *path, int thumbnail=0) |
192 | CODE: |
298 | CODE: |
193 | { |
299 | { |
194 | struct jpeg_decompress_struct cinfo; |
300 | struct jpeg_decompress_struct cinfo; |
195 | struct jpg_err_mgr jerr; |
301 | struct jpg_err_mgr jerr; |
196 | guchar *data; |
302 | guchar *data; |
197 | int rs; |
303 | int rs; |
198 | FILE *fp; |
304 | FILE *fp; |
199 | volatile GdkPixbuf *pb = 0; |
305 | volatile GdkPixbuf *pb = 0; |
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306 | |
200 | RETVAL = 0; |
307 | RETVAL = 0; |
201 | |
308 | |
202 | if (!(fp = fopen (path, "rb"))) |
309 | fp = fopen (SvPVbyte_nolen (path), "rb"); |
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310 | |
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311 | if (!fp) |
203 | XSRETURN_UNDEF; |
312 | XSRETURN_UNDEF; |
204 | |
313 | |
205 | cinfo.err = jpeg_std_error (&jerr.err); |
314 | cinfo.err = jpeg_std_error (&jerr.err); |
206 | |
315 | |
207 | jerr.err.error_exit = cv_error_exit; |
316 | jerr.err.error_exit = cv_error_exit; |
… | |
… | |
278 | jpeg_destroy_decompress (&cinfo); |
387 | jpeg_destroy_decompress (&cinfo); |
279 | } |
388 | } |
280 | OUTPUT: |
389 | OUTPUT: |
281 | RETVAL |
390 | RETVAL |
282 | |
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 | } |
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435 | |
283 | ############################################################################# |
436 | ############################################################################# |
284 | |
437 | |
285 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
438 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
286 | |
439 | |
287 | SV * |
440 | SV * |
288 | foldcase (SV *pathsv) |
441 | foldcase (SV *pathsv) |
289 | PROTOTYPE: $ |
442 | PROTOTYPE: $ |
290 | CODE: |
443 | CODE: |
291 | { |
444 | { |
292 | STRLEN plen; |
445 | STRLEN plen; |
293 | U8 *path = SvPVutf8 (pathsv, plen); |
446 | U8 *path = (U8 *)SvPVutf8 (pathsv, plen); |
294 | U8 *pend = path + plen; |
447 | U8 *pend = path + plen; |
295 | U8 dst [plen * 6 * 3], *dstp = dst; |
448 | U8 dst [plen * 6 * 3], *dstp = dst; |
296 | |
449 | |
297 | while (path < pend) |
450 | while (path < pend) |
298 | { |
451 | { |
… | |
… | |
319 | dstp += cl; |
472 | dstp += cl; |
320 | path += is_utf8_char (path); |
473 | path += is_utf8_char (path); |
321 | } |
474 | } |
322 | } |
475 | } |
323 | |
476 | |
324 | RETVAL = newSVpvn (dst, dstp - dst); |
477 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
325 | } |
478 | } |
326 | OUTPUT: |
479 | OUTPUT: |
327 | RETVAL |
480 | RETVAL |
328 | |
481 | |
329 | GdkPixbuf_noinc * |
482 | GdkPixbuf_noinc * |
330 | p7_to_pb (int w, int h, guchar *src) |
483 | p7_to_pb (int w, int h, SV *src_sv) |
331 | PROTOTYPE: @ |
484 | PROTOTYPE: @ |
332 | CODE: |
485 | CODE: |
333 | { |
486 | { |
334 | int x, y; |
487 | int x, y; |
335 | guchar *dst, *d; |
488 | guchar *dst, *d; |
336 | int dstr; |
489 | int dstr; |
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490 | guchar *src = (guchar *)SvPVbyte_nolen (src_sv); |
337 | |
491 | |
338 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
492 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
339 | dst = gdk_pixbuf_get_pixels (RETVAL); |
493 | dst = gdk_pixbuf_get_pixels (RETVAL); |
340 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
494 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
341 | |
495 | |
… | |
… | |
350 | } |
504 | } |
351 | } |
505 | } |
352 | OUTPUT: |
506 | OUTPUT: |
353 | RETVAL |
507 | RETVAL |
354 | |
508 | |
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509 | ############################################################################# |
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510 | |
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511 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
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512 | |
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513 | void |
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514 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
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515 | CODE: |
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516 | { |
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517 | int w = gdk_pixbuf_get_width (pb); |
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518 | int h = gdk_pixbuf_get_height (pb); |
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519 | int x, y, i; |
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520 | guchar *dst; |
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521 | int bpp = gdk_pixbuf_get_n_channels (pb); |
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522 | guchar *src = gdk_pixbuf_get_pixels (pb); |
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523 | int sstr = gdk_pixbuf_get_rowstride (pb); |
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524 | |
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525 | a85_init (); |
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526 | |
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527 | for (y = 0; y < h; y++) |
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528 | for (x = 0; x < w; x++) |
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529 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
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530 | a85_push (fp, src [x * bpp + y * sstr + i]); |
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531 | |
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532 | a85_finish (fp); |
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533 | } |
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534 | |
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535 | void |
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536 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
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537 | CODE: |
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538 | { |
|
|
539 | int w = gdk_pixbuf_get_width (pb); |
|
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540 | int h = gdk_pixbuf_get_height (pb); |
|
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541 | int x, y, i; |
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542 | guchar *dst; |
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543 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
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544 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
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545 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
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546 | |
|
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547 | for (y = 0; y < h; y++) |
|
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548 | for (x = 0; x < w; x++) |
|
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549 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
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550 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
|
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551 | } |
|
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552 | |
|
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553 | ############################################################################# |
|
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554 | |
|
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555 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
|
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556 | |
355 | SV * |
557 | SV * |
356 | pb_to_p7 (GdkPixbuf *pb) |
558 | pb_to_hv84 (GdkPixbuf *pb) |
357 | CODE: |
559 | CODE: |
358 | { |
560 | { |
359 | int w = gdk_pixbuf_get_width (pb); |
561 | int w = gdk_pixbuf_get_width (pb); |
360 | int h = gdk_pixbuf_get_height (pb); |
562 | int h = gdk_pixbuf_get_height (pb); |
361 | int x, y; |
563 | int x, y; |
362 | guchar *dst; |
564 | guchar *dst; |
363 | int bpp = gdk_pixbuf_get_n_channels (pb); |
565 | int bpp = gdk_pixbuf_get_n_channels (pb); |
364 | guchar *src = gdk_pixbuf_get_pixels (pb); |
566 | guchar *src = gdk_pixbuf_get_pixels (pb); |
365 | int sstr = gdk_pixbuf_get_rowstride (pb); |
567 | int sstr = gdk_pixbuf_get_rowstride (pb); |
366 | int Er[IW], Eg[IW], Eb[IW]; |
|
|
367 | int seed = 77; |
|
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368 | |
|
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369 | RETVAL = newSV (w * h); |
|
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370 | SvPOK_only (RETVAL); |
|
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371 | SvCUR_set (RETVAL, w * h); |
|
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372 | |
|
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373 | dst = SvPVX (RETVAL); |
|
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374 | |
|
|
375 | memset (Er, 0, sizeof (int) * IW); |
|
|
376 | memset (Eg, 0, sizeof (int) * IW); |
|
|
377 | memset (Eb, 0, sizeof (int) * IW); |
|
|
378 | |
|
|
379 | /* some primitive error distribution + random dithering */ |
|
|
380 | |
|
|
381 | for (y = 0; y < h; y++) |
|
|
382 | { |
|
|
383 | int er = 0, eg = 0, eb = 0; |
|
|
384 | |
|
|
385 | for (x = 0; x < w; x++) |
|
|
386 | { |
|
|
387 | int r, g, b; |
|
|
388 | guchar *p = src + x * bpp + y * sstr; |
|
|
389 | |
|
|
390 | r = ((p[0] + er + Er[x]) * 7 + (RAND & 127) + 64) / 255; |
|
|
391 | g = ((p[1] + eg + Eg[x]) * 7 + (RAND & 127) + 64) / 255; |
|
|
392 | b = ((p[2] + eb + Eb[x]) * 3 + (RAND & 127) + 64) / 255; |
|
|
393 | |
|
|
394 | r = r > 7 ? 7 : r < 0 ? 0 : r; |
|
|
395 | g = g > 7 ? 7 : g < 0 ? 0 : g; |
|
|
396 | b = b > 3 ? 3 : b < 0 ? 0 : b; |
|
|
397 | |
|
|
398 | er += p[0] - (r * 255 + 4) / 7; |
|
|
399 | eg += p[1] - (g * 255 + 4) / 7; |
|
|
400 | eb += p[2] - (b * 255 + 2) / 3; |
|
|
401 | |
|
|
402 | Er[x] = er >> 1; er -= (er + 1) >> 1; |
|
|
403 | Eg[x] = eg >> 1; eg -= (eg + 1) >> 1; |
|
|
404 | Eb[x] = eb >> 1; eb -= (eb + 1) >> 1; |
|
|
405 | |
|
|
406 | *dst++ = r << 5 | g << 2 | b; |
|
|
407 | } |
|
|
408 | } |
|
|
409 | } |
|
|
410 | OUTPUT: |
|
|
411 | RETVAL |
|
|
412 | |
|
|
413 | ############################################################################# |
|
|
414 | |
|
|
415 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
|
|
416 | |
|
|
417 | void |
|
|
418 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
|
|
419 | CODE: |
|
|
420 | { |
|
|
421 | int w = gdk_pixbuf_get_width (pb); |
|
|
422 | int h = gdk_pixbuf_get_height (pb); |
|
|
423 | int x, y, i; |
|
|
424 | guchar *dst; |
|
|
425 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
426 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
427 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
428 | |
|
|
429 | a85_init (); |
|
|
430 | |
|
|
431 | for (y = 0; y < h; y++) |
|
|
432 | for (x = 0; x < w; x++) |
|
|
433 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
434 | a85_push (fp, src [x * bpp + y * sstr + i]); |
|
|
435 | |
|
|
436 | a85_finish (fp); |
|
|
437 | } |
|
|
438 | |
|
|
439 | void |
|
|
440 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
|
|
441 | CODE: |
|
|
442 | { |
|
|
443 | int w = gdk_pixbuf_get_width (pb); |
|
|
444 | int h = gdk_pixbuf_get_height (pb); |
|
|
445 | int x, y, i; |
|
|
446 | guchar *dst; |
|
|
447 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
448 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
449 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
450 | |
|
|
451 | for (y = 0; y < h; y++) |
|
|
452 | for (x = 0; x < w; x++) |
|
|
453 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
454 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
|
|
455 | } |
|
|
456 | |
|
|
457 | ############################################################################# |
|
|
458 | |
|
|
459 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
|
|
460 | |
|
|
461 | SV * |
|
|
462 | pb_to_hv84 (GdkPixbuf *pb) |
|
|
463 | CODE: |
|
|
464 | { |
|
|
465 | int w = gdk_pixbuf_get_width (pb); |
|
|
466 | int h = gdk_pixbuf_get_height (pb); |
|
|
467 | int x, y; |
|
|
468 | guchar *dst; |
|
|
469 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
470 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
471 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
472 | |
568 | |
473 | RETVAL = newSV (6 * 8 * 12 / 8); |
569 | RETVAL = newSV (6 * 8 * 12 / 8); |
474 | SvPOK_only (RETVAL); |
570 | SvPOK_only (RETVAL); |
475 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
571 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
476 | |
572 | |
477 | dst = SvPVX (RETVAL); |
573 | dst = (guchar *)SvPVX (RETVAL); |
478 | |
574 | |
479 | /* some primitive error distribution + random dithering */ |
575 | /* some primitive error distribution + random dithering */ |
480 | |
576 | |
481 | for (y = 0; y < h; y++) |
577 | for (y = 0; y < h; y++) |
482 | { |
578 | { |
… | |
… | |
545 | ############################################################################# |
641 | ############################################################################# |
546 | |
642 | |
547 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
643 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
548 | |
644 | |
549 | SV * |
645 | SV * |
550 | make_histograms (SV *ar) |
646 | extract_features (SV *ar) |
551 | CODE: |
647 | CODE: |
552 | { |
648 | { |
553 | int i; |
649 | int i; |
554 | AV *av, *result; |
650 | AV *av, *result; |
555 | |
651 | |
556 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
652 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
557 | croak ("Not an array ref as first argument to make_histogram"); |
653 | croak ("Not an array ref as first argument to extract_features"); |
558 | |
654 | |
559 | av = (AV *) SvRV (ar); |
655 | av = (AV *) SvRV (ar); |
560 | result = newAV (); |
656 | result = newAV (); |
561 | |
657 | |
562 | for (i = 0; i <= av_len (av); ++i) |
658 | for (i = 0; i <= av_len (av); ++i) |
563 | { |
659 | { |
564 | const int HISTSIZE = 64; |
|
|
565 | |
|
|
566 | int j; |
|
|
567 | SV *sv = *av_fetch (av, i, 1); |
660 | SV *sv = *av_fetch (av, i, 1); |
568 | STRLEN len; |
|
|
569 | char *buf = SvPVbyte (sv, len); |
|
|
570 | |
|
|
571 | int tmphist[HISTSIZE]; |
|
|
572 | float *hist; |
|
|
573 | |
|
|
574 | SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); |
661 | SV *histsv = newSV (9 * sizeof (float) + 1); |
|
|
662 | |
575 | SvPOK_on (histsv); |
663 | SvPOK_on (histsv); |
576 | SvCUR_set (histsv, HISTSIZE * sizeof (float)); |
664 | SvCUR_set (histsv, 9 * sizeof (float)); |
577 | hist = (float *)SvPVX (histsv); |
665 | float *hist = (float *)SvPVX (histsv); |
578 | |
666 | |
579 | Zero (tmphist, sizeof (tmphist), char); |
667 | struct feature f_h, f_s, f_v; |
|
|
668 | feature_init (&f_h); |
|
|
669 | feature_init (&f_s); |
|
|
670 | feature_init (&f_v); |
580 | |
671 | |
581 | for (j = len; j--; ) |
|
|
582 | { |
|
|
583 | unsigned int idx |
|
|
584 | = ((*buf & 0xc0) >> 2) |
|
|
585 | | ((*buf & 0x18) >> 1) |
|
|
586 | | (*buf & 0x03); |
|
|
587 | |
|
|
588 | ++tmphist[idx]; |
|
|
589 | ++buf; |
|
|
590 | } |
|
|
591 | |
672 | { |
592 | for (j = 0; j < HISTSIZE; ++j) |
673 | STRLEN len; |
593 | hist[j] = (float)tmphist[j] / (len + 1e-30); |
674 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
|
|
675 | while (len >= 3) |
|
|
676 | { |
|
|
677 | unsigned int r, g, b, h, s, v; |
|
|
678 | r = *buf++; g = *buf++; b = *buf++; |
|
|
679 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
680 | |
|
|
681 | feature_update_pass_1 (&f_h, h); |
|
|
682 | feature_update_pass_1 (&f_s, s); |
|
|
683 | feature_update_pass_1 (&f_v, v); |
|
|
684 | |
|
|
685 | len -= 3; |
|
|
686 | } |
|
|
687 | |
|
|
688 | feature_finish_pass_1 (&f_h); |
|
|
689 | feature_finish_pass_1 (&f_s); |
|
|
690 | feature_finish_pass_1 (&f_v); |
|
|
691 | } |
|
|
692 | |
|
|
693 | { |
|
|
694 | STRLEN len; |
|
|
695 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
|
|
696 | while (len >= 3) |
|
|
697 | { |
|
|
698 | unsigned int r, g, b, h, s, v; |
|
|
699 | r = *buf++; g = *buf++; b = *buf++; |
|
|
700 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
701 | |
|
|
702 | feature_update_pass_2 (&f_h, h); |
|
|
703 | feature_update_pass_2 (&f_s, s); |
|
|
704 | feature_update_pass_2 (&f_v, v); |
|
|
705 | |
|
|
706 | len -= 3; |
|
|
707 | } |
|
|
708 | |
|
|
709 | feature_finish_pass_2 (&f_h); |
|
|
710 | feature_finish_pass_2 (&f_s); |
|
|
711 | feature_finish_pass_2 (&f_v); |
|
|
712 | } |
|
|
713 | |
|
|
714 | hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.; |
|
|
715 | hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ; |
|
|
716 | hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5; |
594 | |
717 | |
595 | av_push (result, histsv); |
718 | av_push (result, histsv); |
596 | } |
719 | } |
597 | |
720 | |
598 | RETVAL = newRV_noinc ((SV *)result); |
721 | RETVAL = newRV_noinc ((SV *)result); |
599 | } |
722 | } |
600 | OUTPUT: |
723 | OUTPUT: |
601 | RETVAL |
724 | RETVAL |
602 | |
725 | |
603 | |
|
|