… | |
… | |
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> |
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14 | #include <gdk/gdkx.h> |
11 | #include <gdk-pixbuf/gdk-pixbuf.h> |
15 | #include <gdk-pixbuf/gdk-pixbuf.h> |
12 | |
16 | |
13 | #include <gperl.h> |
17 | #include <gperl.h> |
14 | #include <gtk2perl.h> |
18 | #include <gtk2perl.h> |
15 | |
19 | |
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20 | #include <assert.h> |
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21 | |
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22 | #if WEBP |
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23 | #include <webp/decode.h> |
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24 | #endif |
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25 | |
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26 | #include "perlmulticore.h" |
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27 | |
16 | #define IW 80 /* MUST match Schnauer.pm! */ |
28 | #define IW 80 /* MUST match Schnauzer.pm! */ |
17 | #define IH 60 /* MUST match Schnauer.pm! */ |
29 | #define IH 60 /* MUST match Schnauzer.pm! */ |
18 | |
30 | |
19 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
31 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
20 | |
32 | |
21 | #define LINELENGTH 240 |
33 | #define LINELENGTH 240 |
22 | |
34 | |
23 | #define ELLIPSIS "\xe2\x80\xa6" |
35 | #define ELLIPSIS "\xe2\x80\xa6" |
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36 | |
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37 | typedef char *octet_string; |
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38 | |
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39 | static magic_t magic_cookie[2]; /* !mime, mime */ |
24 | |
40 | |
25 | struct jpg_err_mgr |
41 | struct jpg_err_mgr |
26 | { |
42 | { |
27 | struct jpeg_error_mgr err; |
43 | struct jpeg_error_mgr err; |
28 | jmp_buf setjmp_buffer; |
44 | jmp_buf setjmp_buffer; |
29 | }; |
45 | }; |
30 | |
46 | |
31 | static void |
47 | static void |
32 | cv_error_exit (j_common_ptr cinfo) |
48 | cv_error_exit (j_common_ptr cinfo) |
33 | { |
49 | { |
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50 | cinfo->err->output_message (cinfo); |
34 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
51 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
35 | } |
52 | } |
36 | |
53 | |
37 | static void |
54 | static void |
38 | cv_error_output (j_common_ptr cinfo) |
55 | cv_error_output (j_common_ptr cinfo) |
39 | { |
56 | { |
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57 | char msg[JMSG_LENGTH_MAX]; |
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58 | |
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59 | cinfo->err->format_message (cinfo, msg); |
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60 | |
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61 | fprintf (stderr, "JPEG decoding error: %s\n", msg); |
40 | return; |
62 | return; |
41 | } |
63 | } |
42 | |
64 | |
43 | static void |
65 | static void |
44 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
66 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
… | |
… | |
65 | |
87 | |
66 | *h &= 255; |
88 | *h &= 255; |
67 | } |
89 | } |
68 | } |
90 | } |
69 | |
91 | |
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92 | struct feature { |
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93 | float v1, v2, v3; // mean, square, cube |
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94 | int n; |
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95 | }; |
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96 | |
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97 | static void |
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98 | feature_init (struct feature *f) |
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99 | { |
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100 | f->v1 = 0.; |
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101 | f->v2 = 0.; |
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102 | f->v3 = 0.; |
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103 | f->n = 0; |
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104 | } |
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105 | |
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106 | // didn't find an algorithm to neatly do mean, variance and skew in one pass. |
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107 | // elmex ist schuld. |
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108 | static void |
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109 | feature_update_pass_1 (struct feature *f, unsigned int v) |
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110 | { |
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111 | f->v1 += v; |
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112 | f->n += 1; |
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113 | } |
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114 | |
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115 | static void |
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116 | feature_finish_pass_1 (struct feature *f) |
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117 | { |
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118 | if (f->n < 1) |
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119 | return; |
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120 | |
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121 | f->v1 /= f->n; |
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122 | } |
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123 | |
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124 | static void |
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125 | feature_update_pass_2 (struct feature *f, unsigned int v) |
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126 | { |
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127 | float d = v - f->v1; |
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128 | |
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129 | f->v2 += d * d; |
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130 | f->v3 += d * d * d; |
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131 | } |
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132 | |
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133 | static void |
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134 | feature_finish_pass_2 (struct feature *f) |
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135 | { |
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136 | if (f->n < 1) |
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137 | return; |
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138 | |
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139 | f->v2 /= f->n; |
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140 | f->v3 /= f->n; |
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141 | |
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142 | f->v1 /= 255.; |
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143 | f->v2 /= 255. * 255.; f->v2 = sqrtf (f->v2); |
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144 | f->v3 /= 255. * 255. * 255.; f->v3 = powf (fabsf (f->v3), 1./3.); |
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145 | } |
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146 | |
70 | static guint32 a85_val; |
147 | static guint32 a85_val; |
71 | static guint a85_cnt; |
148 | static guint a85_cnt; |
72 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
149 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
73 | |
150 | |
74 | static void |
151 | static void |
… | |
… | |
86 | if (!--a85_cnt) |
163 | if (!--a85_cnt) |
87 | { |
164 | { |
88 | a85_cnt = 4; |
165 | a85_cnt = 4; |
89 | if (a85_val) |
166 | if (a85_val) |
90 | { |
167 | { |
91 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
168 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
92 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
169 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
93 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
170 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
94 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
171 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
95 | a85_ptr[0] = (a85_val ) + 33; |
172 | a85_ptr[0] = (a85_val ) + 33; |
96 | |
173 | |
97 | a85_ptr += 5; |
174 | a85_ptr += 5; |
98 | } |
175 | } |
… | |
… | |
126 | |
203 | |
127 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
204 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
128 | |
205 | |
129 | PROTOTYPES: ENABLE |
206 | PROTOTYPES: ENABLE |
130 | |
207 | |
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208 | # missing function in perl. really :) |
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209 | int |
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210 | common_prefix_length (a, b) |
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211 | unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); |
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212 | unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); |
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213 | CODE: |
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214 | RETVAL = 0; |
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215 | |
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216 | while (*a == *b && *a) |
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217 | { |
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218 | RETVAL += (*a & 0xc0) != 0x80; |
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219 | a++, b++; |
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220 | } |
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221 | |
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222 | OUTPUT: |
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223 | RETVAL |
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224 | |
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225 | const char * |
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226 | magic (SV *path_or_data) |
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227 | ALIAS: |
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228 | magic = 0 |
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229 | magic_mime = 1 |
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230 | magic_buffer = 2 |
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231 | magic_buffer_mime = 3 |
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232 | CODE: |
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233 | { |
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234 | STRLEN len; |
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235 | char *data = SvPVbyte (path_or_data, len); |
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236 | |
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237 | perlinterp_release (); |
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238 | |
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239 | if (!magic_cookie[0]) |
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240 | { |
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241 | magic_cookie[0] = magic_open (MAGIC_SYMLINK); |
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242 | magic_cookie[1] = magic_open (MAGIC_SYMLINK | MAGIC_MIME); |
|
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243 | } |
|
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244 | |
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245 | RETVAL = ix & 2 |
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246 | ? magic_buffer (magic_cookie[ix], data, len) |
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247 | : magic_file (magic_cookie[ix], data); |
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248 | |
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249 | perlinterp_acquire (); |
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250 | } |
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251 | OUTPUT: |
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252 | RETVAL |
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253 | |
131 | # missing in Gtk2 perl module |
254 | # missing/broken in Gtk2 perl module |
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255 | |
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256 | void |
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257 | gdk_window_clear_hints (GdkWindow *window) |
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258 | CODE: |
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259 | gdk_window_set_geometry_hints (window, 0, 0); |
132 | |
260 | |
133 | gboolean |
261 | gboolean |
134 | gdk_net_wm_supports (GdkAtom property) |
262 | gdk_net_wm_supports (GdkAtom property) |
135 | CODE: |
263 | CODE: |
136 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
264 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
… | |
… | |
142 | RETVAL |
270 | RETVAL |
143 | |
271 | |
144 | GdkPixbuf_noinc * |
272 | GdkPixbuf_noinc * |
145 | dealpha_expose (GdkPixbuf *pb) |
273 | dealpha_expose (GdkPixbuf *pb) |
146 | CODE: |
274 | CODE: |
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275 | perlinterp_release (); |
147 | { |
276 | { |
148 | int w = gdk_pixbuf_get_width (pb); |
277 | int w = gdk_pixbuf_get_width (pb); |
149 | int h = gdk_pixbuf_get_height (pb); |
278 | int h = gdk_pixbuf_get_height (pb); |
150 | int bpp = gdk_pixbuf_get_n_channels (pb); |
279 | int bpp = gdk_pixbuf_get_n_channels (pb); |
151 | int x, y, i; |
280 | int x, y, i; |
… | |
… | |
160 | for (x = 0; x < w; x++) |
289 | for (x = 0; x < w; x++) |
161 | for (y = 0; y < h; y++) |
290 | for (y = 0; y < h; y++) |
162 | for (i = 0; i < 3; i++) |
291 | for (i = 0; i < 3; i++) |
163 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
292 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
164 | } |
293 | } |
|
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294 | perlinterp_acquire (); |
165 | OUTPUT: |
295 | OUTPUT: |
166 | RETVAL |
296 | RETVAL |
167 | |
297 | |
168 | GdkPixbuf_noinc * |
298 | GdkPixbuf_noinc * |
169 | rotate (GdkPixbuf *pb, int angle) |
299 | rotate (GdkPixbuf *pb, int angle) |
170 | CODE: |
300 | CODE: |
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301 | perlinterp_release (); |
|
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302 | if (angle < 0) |
|
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303 | angle += 360; |
171 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
304 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
172 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
305 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
173 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
306 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
174 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
307 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
175 | : angle); |
308 | : angle); |
|
|
309 | perlinterp_acquire (); |
176 | OUTPUT: |
310 | OUTPUT: |
177 | RETVAL |
311 | RETVAL |
178 | |
312 | |
179 | GdkPixbuf_noinc * |
313 | GdkPixbuf_noinc * |
180 | load_jpeg (SV *path, int thumbnail=0) |
314 | decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
|
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315 | CODE: |
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316 | { |
|
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317 | #if WEBP |
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318 | guchar *data; |
|
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319 | STRLEN data_size; |
|
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320 | int alpha; |
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321 | WebPDecoderConfig config; |
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322 | int inw, inh; |
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323 | |
|
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324 | data = SvPVbyte (image_data, data_size); |
|
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325 | |
|
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326 | perlinterp_release (); |
|
|
327 | |
|
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328 | RETVAL = 0; |
|
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329 | |
|
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330 | if (!WebPInitDecoderConfig (&config)) |
|
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331 | goto err; |
|
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332 | |
|
|
333 | config.options.use_threads = 1; |
|
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334 | |
|
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335 | if (WebPGetFeatures (data, data_size, &config.input) != VP8_STATUS_OK) |
|
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336 | goto err; |
|
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337 | |
|
|
338 | inw = config.input.width; |
|
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339 | inh = config.input.height; |
|
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340 | |
|
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341 | if (thumbnail) |
|
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342 | { |
|
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343 | if (inw * ih > inh * iw) |
|
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344 | ih = (iw * inh + inw - 1) / inw; |
|
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345 | else |
|
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346 | iw = (ih * inw + inh - 1) / inh; |
|
|
347 | |
|
|
348 | config.options.bypass_filtering = 1; |
|
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349 | config.options.no_fancy_upsampling = 1; |
|
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350 | |
|
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351 | config.options.use_scaling = 1; |
|
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352 | config.options.scaled_width = iw; |
|
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353 | config.options.scaled_height = ih; |
|
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354 | } |
|
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355 | else |
|
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356 | { |
|
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357 | iw = inw; |
|
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358 | ih = inh; |
|
|
359 | } |
|
|
360 | |
|
|
361 | alpha = config.input.has_alpha; |
|
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362 | |
|
|
363 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!alpha, 8, iw, ih); |
|
|
364 | if (!RETVAL) |
|
|
365 | goto err; |
|
|
366 | |
|
|
367 | config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB; |
|
|
368 | config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL); |
|
|
369 | config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL); |
|
|
370 | config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL); |
|
|
371 | config.output.is_external_memory = 1; |
|
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372 | |
|
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373 | if (WebPDecode (data, data_size, &config) != VP8_STATUS_OK) |
|
|
374 | { |
|
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375 | g_object_unref (RETVAL); |
|
|
376 | RETVAL = 0; |
|
|
377 | goto err; |
|
|
378 | } |
|
|
379 | |
|
|
380 | err: |
|
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381 | perlinterp_acquire (); |
|
|
382 | #else |
|
|
383 | croak ("load_webp: webp not enabled at compile time"); |
|
|
384 | #endif |
|
|
385 | } |
|
|
386 | OUTPUT: |
|
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387 | RETVAL |
|
|
388 | |
|
|
389 | GdkPixbuf_noinc * |
|
|
390 | load_jpeg (SV *path, int thumbnail = 0, int iw = 0, int ih = 0) |
181 | CODE: |
391 | CODE: |
182 | { |
392 | { |
183 | struct jpeg_decompress_struct cinfo; |
393 | struct jpeg_decompress_struct cinfo; |
184 | struct jpg_err_mgr jerr; |
394 | struct jpg_err_mgr jerr; |
185 | guchar *data; |
395 | guchar *data; |
186 | int rs; |
396 | int rs; |
187 | FILE *fp; |
397 | FILE *fp; |
188 | volatile GdkPixbuf *pb = 0; |
398 | volatile GdkPixbuf *pb = 0; |
189 | gchar *filename; |
|
|
190 | |
399 | |
191 | RETVAL = 0; |
400 | RETVAL = 0; |
192 | |
401 | |
193 | filename = g_filename_from_utf8 (SvPVutf8_nolen (path), -1, 0, 0, 0); |
|
|
194 | fp = fopen (filename, "rb"); |
402 | fp = fopen (SvPVbyte_nolen (path), "rb"); |
195 | g_free (filename); |
|
|
196 | |
403 | |
197 | if (!fp) |
404 | if (!fp) |
198 | XSRETURN_UNDEF; |
405 | XSRETURN_UNDEF; |
199 | |
406 | |
|
|
407 | perlinterp_release (); |
|
|
408 | |
200 | cinfo.err = jpeg_std_error (&jerr.err); |
409 | cinfo.err = jpeg_std_error (&jerr.err); |
201 | |
410 | |
202 | jerr.err.error_exit = cv_error_exit; |
411 | jerr.err.error_exit = cv_error_exit; |
203 | jerr.err.output_message = cv_error_output; |
412 | jerr.err.output_message = cv_error_output; |
204 | |
413 | |
… | |
… | |
208 | jpeg_destroy_decompress (&cinfo); |
417 | jpeg_destroy_decompress (&cinfo); |
209 | |
418 | |
210 | if (pb) |
419 | if (pb) |
211 | g_object_unref ((gpointer)pb); |
420 | g_object_unref ((gpointer)pb); |
212 | |
421 | |
|
|
422 | perlinterp_acquire (); |
213 | XSRETURN_UNDEF; |
423 | XSRETURN_UNDEF; |
214 | } |
424 | } |
215 | |
425 | |
216 | jpeg_create_decompress (&cinfo); |
426 | jpeg_create_decompress (&cinfo); |
217 | |
427 | |
… | |
… | |
233 | { |
443 | { |
234 | cinfo.dct_method = JDCT_FASTEST; |
444 | cinfo.dct_method = JDCT_FASTEST; |
235 | cinfo.do_fancy_upsampling = FALSE; |
445 | cinfo.do_fancy_upsampling = FALSE; |
236 | |
446 | |
237 | while (cinfo.scale_denom < 8 |
447 | while (cinfo.scale_denom < 8 |
238 | && cinfo.output_width >= IW*4 |
448 | && cinfo.output_width >= iw*4 |
239 | && cinfo.output_height >= IH*4) |
449 | && cinfo.output_height >= ih*4) |
240 | { |
450 | { |
241 | cinfo.scale_denom <<= 1; |
451 | cinfo.scale_denom <<= 1; |
242 | jpeg_calc_output_dimensions (&cinfo); |
452 | jpeg_calc_output_dimensions (&cinfo); |
243 | } |
453 | } |
244 | } |
454 | } |
245 | |
455 | |
|
|
456 | if (cinfo.output_components != 3) |
|
|
457 | longjmp (jerr.setjmp_buffer, 3); |
|
|
458 | |
|
|
459 | if (cinfo.jpeg_color_space == JCS_YCCK || cinfo.jpeg_color_space == JCS_CMYK) |
|
|
460 | { |
|
|
461 | cinfo.out_color_space = JCS_CMYK; |
|
|
462 | cinfo.output_components = 4; |
|
|
463 | } |
|
|
464 | |
246 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height); |
465 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, cinfo.output_components == 4, 8, cinfo.output_width, cinfo.output_height); |
247 | if (!RETVAL) |
466 | if (!RETVAL) |
248 | longjmp (jerr.setjmp_buffer, 2); |
467 | longjmp (jerr.setjmp_buffer, 2); |
249 | |
468 | |
250 | data = gdk_pixbuf_get_pixels (RETVAL); |
469 | data = gdk_pixbuf_get_pixels (RETVAL); |
251 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
470 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
252 | |
|
|
253 | if (cinfo.output_components != 3) |
|
|
254 | longjmp (jerr.setjmp_buffer, 3); |
|
|
255 | |
471 | |
256 | jpeg_start_decompress (&cinfo); |
472 | jpeg_start_decompress (&cinfo); |
257 | |
473 | |
258 | while (cinfo.output_scanline < cinfo.output_height) |
474 | while (cinfo.output_scanline < cinfo.output_height) |
259 | { |
475 | { |
… | |
… | |
266 | rp [3] = (guchar *)rp [2] + rs; |
482 | rp [3] = (guchar *)rp [2] + rs; |
267 | |
483 | |
268 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
484 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
269 | } |
485 | } |
270 | |
486 | |
|
|
487 | if (cinfo.out_color_space == JCS_CMYK) |
|
|
488 | { |
|
|
489 | guchar *end = data + cinfo.output_height * rs; |
|
|
490 | |
|
|
491 | while (data < end) |
|
|
492 | { |
|
|
493 | U32 c = data [0]; |
|
|
494 | U32 m = data [1]; |
|
|
495 | U32 y = data [2]; |
|
|
496 | U32 k = data [3]; |
|
|
497 | |
|
|
498 | if (0) |
|
|
499 | if (cinfo.Adobe_transform == 2) |
|
|
500 | { |
|
|
501 | c ^= 0xff; |
|
|
502 | m ^= 0xff; |
|
|
503 | y ^= 0xff; |
|
|
504 | k ^= 0xff; |
|
|
505 | } |
|
|
506 | |
|
|
507 | data [0] = (c * k + 0x80) / 0xff; |
|
|
508 | data [1] = (m * k + 0x80) / 0xff; |
|
|
509 | data [2] = (y * k + 0x80) / 0xff; |
|
|
510 | data [3] = 0xff; |
|
|
511 | |
|
|
512 | data += 4; |
|
|
513 | } |
|
|
514 | } |
|
|
515 | |
271 | jpeg_finish_decompress (&cinfo); |
516 | jpeg_finish_decompress (&cinfo); |
272 | fclose (fp); |
517 | fclose (fp); |
273 | jpeg_destroy_decompress (&cinfo); |
518 | jpeg_destroy_decompress (&cinfo); |
|
|
519 | perlinterp_acquire (); |
274 | } |
520 | } |
275 | OUTPUT: |
521 | OUTPUT: |
276 | RETVAL |
522 | RETVAL |
277 | |
523 | |
|
|
524 | void |
|
|
525 | compare (GdkPixbuf *a, GdkPixbuf *b) |
|
|
526 | PPCODE: |
|
|
527 | perlinterp_release (); |
|
|
528 | { |
|
|
529 | int w = gdk_pixbuf_get_width (a); |
|
|
530 | int h = gdk_pixbuf_get_height (a); |
|
|
531 | |
|
|
532 | int sa = gdk_pixbuf_get_rowstride (a); |
|
|
533 | int sb = gdk_pixbuf_get_rowstride (b); |
|
|
534 | |
|
|
535 | guchar *pa = gdk_pixbuf_get_pixels (a); |
|
|
536 | guchar *pb = gdk_pixbuf_get_pixels (b); |
|
|
537 | |
|
|
538 | int x, y; |
|
|
539 | |
|
|
540 | assert (w == gdk_pixbuf_get_width (b)); |
|
|
541 | assert (h == gdk_pixbuf_get_height (b)); |
|
|
542 | |
|
|
543 | assert (gdk_pixbuf_get_n_channels (a) == 3); |
|
|
544 | assert (gdk_pixbuf_get_n_channels (b) == 3); |
|
|
545 | |
|
|
546 | double diff = 0.; |
|
|
547 | int peak = 0; |
|
|
548 | |
|
|
549 | if (w && h) |
|
|
550 | for (y = 0; y < h; y++) |
|
|
551 | { |
|
|
552 | guchar *pa_ = pa + y * sa; |
|
|
553 | guchar *pb_ = pb + y * sb; |
|
|
554 | |
|
|
555 | for (x = 0; x < w; x++) |
|
|
556 | { |
|
|
557 | int d; |
|
|
558 | |
|
|
559 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
560 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
561 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
562 | } |
|
|
563 | } |
|
|
564 | |
|
|
565 | perlinterp_acquire (); |
|
|
566 | |
|
|
567 | EXTEND (SP, 2); |
|
|
568 | PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); |
|
|
569 | PUSHs (sv_2mortal (newSVnv (peak / 255.))); |
|
|
570 | } |
|
|
571 | |
278 | ############################################################################# |
572 | ############################################################################# |
279 | |
573 | |
280 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
574 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
|
|
575 | |
|
|
576 | # currently only works for filenames (octet strings) |
281 | |
577 | |
282 | SV * |
578 | SV * |
283 | foldcase (SV *pathsv) |
579 | foldcase (SV *pathsv) |
284 | PROTOTYPE: $ |
580 | PROTOTYPE: $ |
285 | CODE: |
581 | CODE: |
286 | { |
582 | { |
287 | STRLEN plen; |
583 | STRLEN plen; |
288 | U8 *path = (U8 *)SvPVutf8 (pathsv, plen); |
584 | U8 *path = (U8 *)SvPV (pathsv, plen); |
289 | U8 *pend = path + plen; |
585 | U8 *pend = path + plen; |
290 | U8 dst [plen * 6 * 3], *dstp = dst; |
586 | U8 dst [plen * 6 * 3], *dstp = dst; |
291 | |
587 | |
292 | while (path < pend) |
588 | while (path < pend) |
293 | { |
589 | { |
294 | U8 ch = *path; |
590 | U8 ch = *path; |
295 | |
591 | |
296 | if (ch >= 'a' && ch <= 'z') |
592 | if (ch >= 'a' && ch <= 'z') |
297 | *dstp++ = *path++; |
593 | *dstp++ = *path++; |
|
|
594 | else if (ch >= 'A' && ch <= 'Z') |
|
|
595 | *dstp++ = *path++ + ('a' - 'A'); |
298 | else if (ch >= '0' && ch <= '9') |
596 | else if (ch >= '0' && ch <= '9') |
299 | { |
597 | { |
300 | STRLEN el, nl = 0; |
598 | STRLEN el, nl = 0; |
301 | while (*path >= '0' && *path <= '9' && path < pend) |
599 | while (*path >= '0' && *path <= '9' && path < pend) |
302 | path++, nl++; |
600 | path++, nl++; |
… | |
… | |
305 | *dstp++ = '0'; |
603 | *dstp++ = '0'; |
306 | |
604 | |
307 | memcpy (dstp, path - nl, nl); |
605 | memcpy (dstp, path - nl, nl); |
308 | dstp += nl; |
606 | dstp += nl; |
309 | } |
607 | } |
|
|
608 | else |
|
|
609 | *dstp++ = *path++; |
|
|
610 | #if 0 |
310 | else |
611 | else |
311 | { |
612 | { |
312 | STRLEN cl; |
613 | STRLEN cl; |
313 | to_utf8_fold (path, dstp, &cl); |
614 | to_utf8_fold (path, dstp, &cl); |
314 | dstp += cl; |
615 | dstp += cl; |
315 | path += is_utf8_char (path); |
616 | path += is_utf8_char (path); |
316 | } |
617 | } |
|
|
618 | #endif |
317 | } |
619 | } |
318 | |
620 | |
319 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
621 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
320 | } |
622 | } |
321 | OUTPUT: |
623 | OUTPUT: |
… | |
… | |
483 | ############################################################################# |
785 | ############################################################################# |
484 | |
786 | |
485 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
787 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
486 | |
788 | |
487 | SV * |
789 | SV * |
488 | make_histograms (SV *ar) |
790 | extract_features (SV *ar) |
489 | CODE: |
791 | CODE: |
490 | { |
792 | { |
491 | int i; |
793 | int i; |
492 | AV *av, *result; |
794 | AV *av, *result; |
493 | |
795 | |
494 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
796 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
495 | croak ("Not an array ref as first argument to make_histogram"); |
797 | croak ("Not an array ref as first argument to extract_features"); |
496 | |
798 | |
497 | av = (AV *) SvRV (ar); |
799 | av = (AV *) SvRV (ar); |
498 | result = newAV (); |
800 | result = newAV (); |
499 | |
801 | |
500 | for (i = 0; i <= av_len (av); ++i) |
802 | for (i = 0; i <= av_len (av); ++i) |
501 | { |
803 | { |
502 | const int HISTSIZE = 64; |
|
|
503 | |
|
|
504 | int j; |
|
|
505 | SV *sv = *av_fetch (av, i, 1); |
804 | SV *sv = *av_fetch (av, i, 1); |
506 | STRLEN len; |
|
|
507 | char *buf = SvPVbyte (sv, len); |
|
|
508 | |
|
|
509 | int tmphist[HISTSIZE]; |
|
|
510 | float *hist; |
|
|
511 | |
|
|
512 | SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); |
805 | SV *histsv = newSV (9 * sizeof (float) + 1); |
|
|
806 | |
513 | SvPOK_on (histsv); |
807 | SvPOK_on (histsv); |
514 | SvCUR_set (histsv, HISTSIZE * sizeof (float)); |
808 | SvCUR_set (histsv, 9 * sizeof (float)); |
515 | hist = (float *)SvPVX (histsv); |
809 | float *hist = (float *)SvPVX (histsv); |
516 | |
810 | |
517 | Zero (tmphist, sizeof (tmphist), char); |
811 | struct feature f_h, f_s, f_v; |
|
|
812 | feature_init (&f_h); |
|
|
813 | feature_init (&f_s); |
|
|
814 | feature_init (&f_v); |
518 | |
815 | |
519 | for (j = len; j--; ) |
|
|
520 | { |
|
|
521 | unsigned int idx |
|
|
522 | = ((*buf & 0xc0) >> 2) |
|
|
523 | | ((*buf & 0x18) >> 1) |
|
|
524 | | (*buf & 0x03); |
|
|
525 | |
|
|
526 | ++tmphist[idx]; |
|
|
527 | ++buf; |
|
|
528 | } |
|
|
529 | |
816 | { |
530 | for (j = 0; j < HISTSIZE; ++j) |
817 | STRLEN len; |
531 | hist[j] = (float)tmphist[j] / (len + 1e-30); |
818 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
|
|
819 | while (len >= 3) |
|
|
820 | { |
|
|
821 | unsigned int r, g, b, h, s, v; |
|
|
822 | r = *buf++; g = *buf++; b = *buf++; |
|
|
823 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
824 | |
|
|
825 | feature_update_pass_1 (&f_h, h); |
|
|
826 | feature_update_pass_1 (&f_s, s); |
|
|
827 | feature_update_pass_1 (&f_v, v); |
|
|
828 | |
|
|
829 | len -= 3; |
|
|
830 | } |
|
|
831 | |
|
|
832 | feature_finish_pass_1 (&f_h); |
|
|
833 | feature_finish_pass_1 (&f_s); |
|
|
834 | feature_finish_pass_1 (&f_v); |
|
|
835 | } |
|
|
836 | |
|
|
837 | { |
|
|
838 | STRLEN len; |
|
|
839 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
|
|
840 | while (len >= 3) |
|
|
841 | { |
|
|
842 | unsigned int r, g, b, h, s, v; |
|
|
843 | r = *buf++; g = *buf++; b = *buf++; |
|
|
844 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
845 | |
|
|
846 | feature_update_pass_2 (&f_h, h); |
|
|
847 | feature_update_pass_2 (&f_s, s); |
|
|
848 | feature_update_pass_2 (&f_v, v); |
|
|
849 | |
|
|
850 | len -= 3; |
|
|
851 | } |
|
|
852 | |
|
|
853 | feature_finish_pass_2 (&f_h); |
|
|
854 | feature_finish_pass_2 (&f_s); |
|
|
855 | feature_finish_pass_2 (&f_v); |
|
|
856 | } |
|
|
857 | |
|
|
858 | hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.; |
|
|
859 | hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ; |
|
|
860 | hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5; |
532 | |
861 | |
533 | av_push (result, histsv); |
862 | av_push (result, histsv); |
534 | } |
863 | } |
535 | |
864 | |
536 | RETVAL = newRV_noinc ((SV *)result); |
865 | RETVAL = newRV_noinc ((SV *)result); |
537 | } |
866 | } |
538 | OUTPUT: |
867 | OUTPUT: |
539 | RETVAL |
868 | RETVAL |
540 | |
869 | |
541 | |
|
|