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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; |
… | |
… | |
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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… | |
126 | |
186 | |
127 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
187 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
128 | |
188 | |
129 | PROTOTYPES: ENABLE |
189 | PROTOTYPES: ENABLE |
130 | |
190 | |
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191 | # missing function in perl. really :) |
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192 | int |
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193 | common_prefix_length (a, b) |
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194 | unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); |
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195 | unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); |
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196 | CODE: |
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197 | RETVAL = 0; |
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198 | |
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199 | while (*a == *b && *a) |
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200 | { |
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201 | RETVAL += (*a & 0xc0) != 0x80; |
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202 | a++, b++; |
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203 | } |
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204 | |
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205 | OUTPUT: |
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206 | RETVAL |
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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 | |
131 | # 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); |
132 | |
256 | |
133 | gboolean |
257 | gboolean |
134 | gdk_net_wm_supports (GdkAtom property) |
258 | gdk_net_wm_supports (GdkAtom property) |
135 | CODE: |
259 | CODE: |
136 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
260 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
… | |
… | |
164 | } |
288 | } |
165 | OUTPUT: |
289 | OUTPUT: |
166 | RETVAL |
290 | RETVAL |
167 | |
291 | |
168 | GdkPixbuf_noinc * |
292 | GdkPixbuf_noinc * |
169 | transpose (GdkPixbuf *pb) |
293 | rotate (GdkPixbuf *pb, int angle) |
170 | CODE: |
294 | CODE: |
171 | { |
295 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
172 | int w = gdk_pixbuf_get_width (pb); |
296 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
173 | int h = gdk_pixbuf_get_height (pb); |
297 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
174 | int bpp = gdk_pixbuf_get_n_channels (pb); |
298 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
175 | int x, y, i; |
299 | : angle); |
176 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
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177 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
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178 | |
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179 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w); |
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180 | |
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181 | dst = gdk_pixbuf_get_pixels (RETVAL); |
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182 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
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183 | |
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184 | for (y = 0; y < h; y++) |
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185 | for (x = 0; x < w; x++) |
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186 | for (i = 0; i < bpp; i++) |
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187 | dst[y * bpp + x * dstr + i] = src[x * bpp + y * sstr + i]; |
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188 | } |
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189 | OUTPUT: |
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190 | RETVAL |
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191 | |
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192 | GdkPixbuf_noinc * |
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193 | flop (GdkPixbuf *pb) |
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194 | CODE: |
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195 | { |
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196 | int w = gdk_pixbuf_get_width (pb); |
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197 | int h = gdk_pixbuf_get_height (pb); |
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198 | int bpp = gdk_pixbuf_get_n_channels (pb); |
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199 | int x, y, i; |
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200 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
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201 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
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202 | |
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203 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h); |
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204 | |
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205 | dst = gdk_pixbuf_get_pixels (RETVAL); |
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206 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
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207 | |
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208 | for (y = 0; y < h; y++) |
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209 | for (x = 0; x < w; x++) |
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210 | for (i = 0; i < bpp; i++) |
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211 | dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i]; |
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212 | } |
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213 | OUTPUT: |
300 | OUTPUT: |
214 | RETVAL |
301 | RETVAL |
215 | |
302 | |
216 | GdkPixbuf_noinc * |
303 | GdkPixbuf_noinc * |
217 | load_jpeg (SV *path, int thumbnail=0) |
304 | load_jpeg (SV *path, int thumbnail=0) |
… | |
… | |
221 | struct jpg_err_mgr jerr; |
308 | struct jpg_err_mgr jerr; |
222 | guchar *data; |
309 | guchar *data; |
223 | int rs; |
310 | int rs; |
224 | FILE *fp; |
311 | FILE *fp; |
225 | volatile GdkPixbuf *pb = 0; |
312 | volatile GdkPixbuf *pb = 0; |
226 | gchar *filename; |
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227 | |
313 | |
228 | RETVAL = 0; |
314 | RETVAL = 0; |
229 | |
315 | |
230 | filename = g_filename_from_utf8 (SvPVutf8_nolen (path), -1, 0, 0, 0); |
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231 | fp = fopen (filename, "rb"); |
316 | fp = fopen (SvPVbyte_nolen (path), "rb"); |
232 | g_free (filename); |
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233 | |
317 | |
234 | if (!fp) |
318 | if (!fp) |
235 | XSRETURN_UNDEF; |
319 | XSRETURN_UNDEF; |
236 | |
320 | |
237 | cinfo.err = jpeg_std_error (&jerr.err); |
321 | cinfo.err = jpeg_std_error (&jerr.err); |
… | |
… | |
310 | jpeg_destroy_decompress (&cinfo); |
394 | jpeg_destroy_decompress (&cinfo); |
311 | } |
395 | } |
312 | OUTPUT: |
396 | OUTPUT: |
313 | RETVAL |
397 | RETVAL |
314 | |
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 | |
315 | ############################################################################# |
443 | ############################################################################# |
316 | |
444 | |
317 | 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) |
318 | |
448 | |
319 | SV * |
449 | SV * |
320 | foldcase (SV *pathsv) |
450 | foldcase (SV *pathsv) |
321 | PROTOTYPE: $ |
451 | PROTOTYPE: $ |
322 | CODE: |
452 | CODE: |
323 | { |
453 | { |
324 | STRLEN plen; |
454 | STRLEN plen; |
325 | U8 *path = (U8 *)SvPVutf8 (pathsv, plen); |
455 | U8 *path = (U8 *)SvPV (pathsv, plen); |
326 | U8 *pend = path + plen; |
456 | U8 *pend = path + plen; |
327 | U8 dst [plen * 6 * 3], *dstp = dst; |
457 | U8 dst [plen * 6 * 3], *dstp = dst; |
328 | |
458 | |
329 | while (path < pend) |
459 | while (path < pend) |
330 | { |
460 | { |
331 | U8 ch = *path; |
461 | U8 ch = *path; |
332 | |
462 | |
333 | if (ch >= 'a' && ch <= 'z') |
463 | if (ch >= 'a' && ch <= 'z') |
334 | *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'); |
335 | else if (ch >= '0' && ch <= '9') |
467 | else if (ch >= '0' && ch <= '9') |
336 | { |
468 | { |
337 | STRLEN el, nl = 0; |
469 | STRLEN el, nl = 0; |
338 | while (*path >= '0' && *path <= '9' && path < pend) |
470 | while (*path >= '0' && *path <= '9' && path < pend) |
339 | path++, nl++; |
471 | path++, nl++; |
… | |
… | |
342 | *dstp++ = '0'; |
474 | *dstp++ = '0'; |
343 | |
475 | |
344 | memcpy (dstp, path - nl, nl); |
476 | memcpy (dstp, path - nl, nl); |
345 | dstp += nl; |
477 | dstp += nl; |
346 | } |
478 | } |
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479 | else |
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480 | *dstp++ = *path++; |
|
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481 | #if 0 |
347 | else |
482 | else |
348 | { |
483 | { |
349 | STRLEN cl; |
484 | STRLEN cl; |
350 | to_utf8_fold (path, dstp, &cl); |
485 | to_utf8_fold (path, dstp, &cl); |
351 | dstp += cl; |
486 | dstp += cl; |
352 | path += is_utf8_char (path); |
487 | path += is_utf8_char (path); |
353 | } |
488 | } |
|
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489 | #endif |
354 | } |
490 | } |
355 | |
491 | |
356 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
492 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
357 | } |
493 | } |
358 | OUTPUT: |
494 | OUTPUT: |
… | |
… | |
383 | } |
519 | } |
384 | } |
520 | } |
385 | OUTPUT: |
521 | OUTPUT: |
386 | RETVAL |
522 | RETVAL |
387 | |
523 | |
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524 | ############################################################################# |
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525 | |
|
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526 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
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527 | |
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528 | void |
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529 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
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530 | CODE: |
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531 | { |
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532 | int w = gdk_pixbuf_get_width (pb); |
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533 | int h = gdk_pixbuf_get_height (pb); |
|
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534 | int x, y, i; |
|
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535 | guchar *dst; |
|
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536 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
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537 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
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538 | int sstr = gdk_pixbuf_get_rowstride (pb); |
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539 | |
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540 | a85_init (); |
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541 | |
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542 | for (y = 0; y < h; y++) |
|
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543 | for (x = 0; x < w; x++) |
|
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544 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
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545 | a85_push (fp, src [x * bpp + y * sstr + i]); |
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546 | |
|
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547 | a85_finish (fp); |
|
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548 | } |
|
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549 | |
|
|
550 | void |
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551 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
|
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552 | CODE: |
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|
553 | { |
|
|
554 | int w = gdk_pixbuf_get_width (pb); |
|
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555 | int h = gdk_pixbuf_get_height (pb); |
|
|
556 | int x, y, i; |
|
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557 | guchar *dst; |
|
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558 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
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559 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
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560 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
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561 | |
|
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562 | for (y = 0; y < h; y++) |
|
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563 | for (x = 0; x < w; x++) |
|
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564 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
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565 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
|
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566 | } |
|
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567 | |
|
|
568 | ############################################################################# |
|
|
569 | |
|
|
570 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
|
|
571 | |
388 | SV * |
572 | SV * |
389 | pb_to_p7 (GdkPixbuf *pb) |
573 | pb_to_hv84 (GdkPixbuf *pb) |
390 | CODE: |
574 | CODE: |
391 | { |
575 | { |
392 | int w = gdk_pixbuf_get_width (pb); |
576 | int w = gdk_pixbuf_get_width (pb); |
393 | int h = gdk_pixbuf_get_height (pb); |
577 | int h = gdk_pixbuf_get_height (pb); |
394 | int x, y; |
578 | int x, y; |
395 | guchar *dst; |
579 | guchar *dst; |
396 | int bpp = gdk_pixbuf_get_n_channels (pb); |
580 | int bpp = gdk_pixbuf_get_n_channels (pb); |
397 | guchar *src = gdk_pixbuf_get_pixels (pb); |
581 | guchar *src = gdk_pixbuf_get_pixels (pb); |
398 | int sstr = gdk_pixbuf_get_rowstride (pb); |
582 | int sstr = gdk_pixbuf_get_rowstride (pb); |
399 | int Er[IW], Eg[IW], Eb[IW]; |
|
|
400 | int seed = 77; |
|
|
401 | |
|
|
402 | RETVAL = newSV (w * h); |
|
|
403 | SvPOK_only (RETVAL); |
|
|
404 | SvCUR_set (RETVAL, w * h); |
|
|
405 | |
|
|
406 | dst = (guchar *)SvPVX (RETVAL); |
|
|
407 | |
|
|
408 | memset (Er, 0, sizeof (int) * IW); |
|
|
409 | memset (Eg, 0, sizeof (int) * IW); |
|
|
410 | memset (Eb, 0, sizeof (int) * IW); |
|
|
411 | |
|
|
412 | /* some primitive error distribution + random dithering */ |
|
|
413 | |
|
|
414 | for (y = 0; y < h; y++) |
|
|
415 | { |
|
|
416 | int er = 0, eg = 0, eb = 0; |
|
|
417 | |
|
|
418 | for (x = 0; x < w; x++) |
|
|
419 | { |
|
|
420 | int r, g, b; |
|
|
421 | guchar *p = src + x * bpp + y * sstr; |
|
|
422 | |
|
|
423 | r = ((p[0] + er + Er[x]) * 7 + (RAND & 127) + 64) / 255; |
|
|
424 | g = ((p[1] + eg + Eg[x]) * 7 + (RAND & 127) + 64) / 255; |
|
|
425 | b = ((p[2] + eb + Eb[x]) * 3 + (RAND & 127) + 64) / 255; |
|
|
426 | |
|
|
427 | r = r > 7 ? 7 : r < 0 ? 0 : r; |
|
|
428 | g = g > 7 ? 7 : g < 0 ? 0 : g; |
|
|
429 | b = b > 3 ? 3 : b < 0 ? 0 : b; |
|
|
430 | |
|
|
431 | er += p[0] - (r * 255 + 4) / 7; |
|
|
432 | eg += p[1] - (g * 255 + 4) / 7; |
|
|
433 | eb += p[2] - (b * 255 + 2) / 3; |
|
|
434 | |
|
|
435 | Er[x] = er >> 1; er -= (er + 1) >> 1; |
|
|
436 | Eg[x] = eg >> 1; eg -= (eg + 1) >> 1; |
|
|
437 | Eb[x] = eb >> 1; eb -= (eb + 1) >> 1; |
|
|
438 | |
|
|
439 | *dst++ = r << 5 | g << 2 | b; |
|
|
440 | } |
|
|
441 | } |
|
|
442 | } |
|
|
443 | OUTPUT: |
|
|
444 | RETVAL |
|
|
445 | |
|
|
446 | ############################################################################# |
|
|
447 | |
|
|
448 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
|
|
449 | |
|
|
450 | void |
|
|
451 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
|
|
452 | CODE: |
|
|
453 | { |
|
|
454 | int w = gdk_pixbuf_get_width (pb); |
|
|
455 | int h = gdk_pixbuf_get_height (pb); |
|
|
456 | int x, y, i; |
|
|
457 | guchar *dst; |
|
|
458 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
459 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
460 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
461 | |
|
|
462 | a85_init (); |
|
|
463 | |
|
|
464 | for (y = 0; y < h; y++) |
|
|
465 | for (x = 0; x < w; x++) |
|
|
466 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
467 | a85_push (fp, src [x * bpp + y * sstr + i]); |
|
|
468 | |
|
|
469 | a85_finish (fp); |
|
|
470 | } |
|
|
471 | |
|
|
472 | void |
|
|
473 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
|
|
474 | CODE: |
|
|
475 | { |
|
|
476 | int w = gdk_pixbuf_get_width (pb); |
|
|
477 | int h = gdk_pixbuf_get_height (pb); |
|
|
478 | int x, y, i; |
|
|
479 | guchar *dst; |
|
|
480 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
481 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
482 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
483 | |
|
|
484 | for (y = 0; y < h; y++) |
|
|
485 | for (x = 0; x < w; x++) |
|
|
486 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
487 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
|
|
488 | } |
|
|
489 | |
|
|
490 | ############################################################################# |
|
|
491 | |
|
|
492 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
|
|
493 | |
|
|
494 | SV * |
|
|
495 | pb_to_hv84 (GdkPixbuf *pb) |
|
|
496 | CODE: |
|
|
497 | { |
|
|
498 | int w = gdk_pixbuf_get_width (pb); |
|
|
499 | int h = gdk_pixbuf_get_height (pb); |
|
|
500 | int x, y; |
|
|
501 | guchar *dst; |
|
|
502 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
503 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
504 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
505 | |
583 | |
506 | RETVAL = newSV (6 * 8 * 12 / 8); |
584 | RETVAL = newSV (6 * 8 * 12 / 8); |
507 | SvPOK_only (RETVAL); |
585 | SvPOK_only (RETVAL); |
508 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
586 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
509 | |
587 | |
… | |
… | |
578 | ############################################################################# |
656 | ############################################################################# |
579 | |
657 | |
580 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
658 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
581 | |
659 | |
582 | SV * |
660 | SV * |
583 | make_histograms (SV *ar) |
661 | extract_features (SV *ar) |
584 | CODE: |
662 | CODE: |
585 | { |
663 | { |
586 | int i; |
664 | int i; |
587 | AV *av, *result; |
665 | AV *av, *result; |
588 | |
666 | |
589 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
667 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
590 | croak ("Not an array ref as first argument to make_histogram"); |
668 | croak ("Not an array ref as first argument to extract_features"); |
591 | |
669 | |
592 | av = (AV *) SvRV (ar); |
670 | av = (AV *) SvRV (ar); |
593 | result = newAV (); |
671 | result = newAV (); |
594 | |
672 | |
595 | for (i = 0; i <= av_len (av); ++i) |
673 | for (i = 0; i <= av_len (av); ++i) |
596 | { |
674 | { |
597 | const int HISTSIZE = 64; |
|
|
598 | |
|
|
599 | int j; |
|
|
600 | SV *sv = *av_fetch (av, i, 1); |
675 | SV *sv = *av_fetch (av, i, 1); |
601 | STRLEN len; |
|
|
602 | char *buf = SvPVbyte (sv, len); |
|
|
603 | |
|
|
604 | int tmphist[HISTSIZE]; |
|
|
605 | float *hist; |
|
|
606 | |
|
|
607 | SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); |
676 | SV *histsv = newSV (9 * sizeof (float) + 1); |
|
|
677 | |
608 | SvPOK_on (histsv); |
678 | SvPOK_on (histsv); |
609 | SvCUR_set (histsv, HISTSIZE * sizeof (float)); |
679 | SvCUR_set (histsv, 9 * sizeof (float)); |
610 | hist = (float *)SvPVX (histsv); |
680 | float *hist = (float *)SvPVX (histsv); |
611 | |
681 | |
612 | Zero (tmphist, sizeof (tmphist), char); |
682 | struct feature f_h, f_s, f_v; |
|
|
683 | feature_init (&f_h); |
|
|
684 | feature_init (&f_s); |
|
|
685 | feature_init (&f_v); |
613 | |
686 | |
614 | for (j = len; j--; ) |
|
|
615 | { |
|
|
616 | unsigned int idx |
|
|
617 | = ((*buf & 0xc0) >> 2) |
|
|
618 | | ((*buf & 0x18) >> 1) |
|
|
619 | | (*buf & 0x03); |
|
|
620 | |
|
|
621 | ++tmphist[idx]; |
|
|
622 | ++buf; |
|
|
623 | } |
|
|
624 | |
687 | { |
625 | for (j = 0; j < HISTSIZE; ++j) |
688 | STRLEN len; |
626 | hist[j] = (float)tmphist[j] / (len + 1e-30); |
689 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
|
|
690 | while (len >= 3) |
|
|
691 | { |
|
|
692 | unsigned int r, g, b, h, s, v; |
|
|
693 | r = *buf++; g = *buf++; b = *buf++; |
|
|
694 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
695 | |
|
|
696 | feature_update_pass_1 (&f_h, h); |
|
|
697 | feature_update_pass_1 (&f_s, s); |
|
|
698 | feature_update_pass_1 (&f_v, v); |
|
|
699 | |
|
|
700 | len -= 3; |
|
|
701 | } |
|
|
702 | |
|
|
703 | feature_finish_pass_1 (&f_h); |
|
|
704 | feature_finish_pass_1 (&f_s); |
|
|
705 | feature_finish_pass_1 (&f_v); |
|
|
706 | } |
|
|
707 | |
|
|
708 | { |
|
|
709 | STRLEN len; |
|
|
710 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
|
|
711 | while (len >= 3) |
|
|
712 | { |
|
|
713 | unsigned int r, g, b, h, s, v; |
|
|
714 | r = *buf++; g = *buf++; b = *buf++; |
|
|
715 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
716 | |
|
|
717 | feature_update_pass_2 (&f_h, h); |
|
|
718 | feature_update_pass_2 (&f_s, s); |
|
|
719 | feature_update_pass_2 (&f_v, v); |
|
|
720 | |
|
|
721 | len -= 3; |
|
|
722 | } |
|
|
723 | |
|
|
724 | feature_finish_pass_2 (&f_h); |
|
|
725 | feature_finish_pass_2 (&f_s); |
|
|
726 | feature_finish_pass_2 (&f_v); |
|
|
727 | } |
|
|
728 | |
|
|
729 | hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.; |
|
|
730 | hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ; |
|
|
731 | hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5; |
627 | |
732 | |
628 | av_push (result, histsv); |
733 | av_push (result, histsv); |
629 | } |
734 | } |
630 | |
735 | |
631 | RETVAL = newRV_noinc ((SV *)result); |
736 | RETVAL = newRV_noinc ((SV *)result); |
632 | } |
737 | } |
633 | OUTPUT: |
738 | OUTPUT: |
634 | RETVAL |
739 | RETVAL |
635 | |
740 | |
636 | |
|
|