… | |
… | |
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> |
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14 | #include <gdk/gdkx.h> |
9 | #include <gdk-pixbuf/gdk-pixbuf.h> |
15 | #include <gdk-pixbuf/gdk-pixbuf.h> |
10 | |
16 | |
11 | #include <gperl.h> |
17 | #include <gperl.h> |
12 | #include <gtk2perl.h> |
18 | #include <gtk2perl.h> |
13 | |
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 | |
14 | #define IW 80 /* MUST match Schnauer.pm! */ |
28 | #define IW 80 /* MUST match Schnauzer.pm! */ |
15 | #define IH 60 /* MUST match Schnauer.pm! */ |
29 | #define IH 60 /* MUST match Schnauzer.pm! */ |
16 | |
30 | |
17 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
31 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
18 | |
32 | |
19 | #define LINELENGTH 240 |
33 | #define LINELENGTH 240 |
20 | |
34 | |
21 | #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 */ |
22 | |
40 | |
23 | struct jpg_err_mgr |
41 | struct jpg_err_mgr |
24 | { |
42 | { |
25 | struct jpeg_error_mgr err; |
43 | struct jpeg_error_mgr err; |
26 | jmp_buf setjmp_buffer; |
44 | jmp_buf setjmp_buffer; |
27 | }; |
45 | }; |
28 | |
46 | |
29 | static void |
47 | static void |
30 | cv_error_exit (j_common_ptr cinfo) |
48 | cv_error_exit (j_common_ptr cinfo) |
31 | { |
49 | { |
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50 | cinfo->err->output_message (cinfo); |
32 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
51 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
33 | } |
52 | } |
34 | |
53 | |
35 | static void |
54 | static void |
36 | cv_error_output (j_common_ptr cinfo) |
55 | cv_error_output (j_common_ptr cinfo) |
37 | { |
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); |
38 | return; |
62 | return; |
39 | } |
63 | } |
40 | |
64 | |
41 | static void |
65 | static void |
42 | 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, |
… | |
… | |
63 | |
87 | |
64 | *h &= 255; |
88 | *h &= 255; |
65 | } |
89 | } |
66 | } |
90 | } |
67 | |
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 | |
68 | static guint32 a85_val; |
147 | static guint32 a85_val; |
69 | static guint a85_cnt; |
148 | static guint a85_cnt; |
70 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
149 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
71 | |
150 | |
72 | static void |
151 | static void |
… | |
… | |
84 | if (!--a85_cnt) |
163 | if (!--a85_cnt) |
85 | { |
164 | { |
86 | a85_cnt = 4; |
165 | a85_cnt = 4; |
87 | if (a85_val) |
166 | if (a85_val) |
88 | { |
167 | { |
89 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
168 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
90 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
169 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
91 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
170 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
92 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
171 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
93 | a85_ptr[0] = (a85_val ) + 33; |
172 | a85_ptr[0] = (a85_val ) + 33; |
94 | |
173 | |
95 | a85_ptr += 5; |
174 | a85_ptr += 5; |
96 | } |
175 | } |
… | |
… | |
124 | |
203 | |
125 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
204 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
126 | |
205 | |
127 | PROTOTYPES: ENABLE |
206 | PROTOTYPES: ENABLE |
128 | |
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 | |
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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); |
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260 | |
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261 | gboolean |
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262 | gdk_net_wm_supports (GdkAtom property) |
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263 | CODE: |
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264 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
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265 | RETVAL = gdk_net_wm_supports (property); |
|
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266 | #else |
|
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267 | RETVAL = 0; |
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268 | #endif |
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269 | OUTPUT: |
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270 | RETVAL |
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271 | |
129 | GdkPixbuf_noinc * |
272 | GdkPixbuf_noinc * |
130 | transpose (GdkPixbuf *pb) |
273 | dealpha_expose (GdkPixbuf *pb) |
131 | CODE: |
274 | CODE: |
|
|
275 | perlinterp_release (); |
132 | { |
276 | { |
133 | int w = gdk_pixbuf_get_width (pb); |
277 | int w = gdk_pixbuf_get_width (pb); |
134 | int h = gdk_pixbuf_get_height (pb); |
278 | int h = gdk_pixbuf_get_height (pb); |
135 | int bpp = gdk_pixbuf_get_n_channels (pb); |
279 | int bpp = gdk_pixbuf_get_n_channels (pb); |
136 | int x, y, i; |
280 | int x, y, i; |
137 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
281 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
138 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
282 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
139 | |
283 | |
140 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w); |
284 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
141 | |
285 | |
142 | dst = gdk_pixbuf_get_pixels (RETVAL); |
286 | dst = gdk_pixbuf_get_pixels (RETVAL); |
143 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
287 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
144 | |
288 | |
145 | for (y = 0; y < h; y++) |
|
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146 | for (x = 0; x < w; x++) |
289 | for (x = 0; x < w; x++) |
|
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290 | for (y = 0; y < h; y++) |
147 | for (i = 0; i < bpp; i++) |
291 | for (i = 0; i < 3; i++) |
148 | dst[y * bpp + x * dstr + i] = src[x * bpp + y * sstr + i]; |
292 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
149 | } |
293 | } |
|
|
294 | perlinterp_acquire (); |
150 | OUTPUT: |
295 | OUTPUT: |
151 | RETVAL |
296 | RETVAL |
152 | |
297 | |
153 | GdkPixbuf_noinc * |
298 | GdkPixbuf_noinc * |
154 | flop (GdkPixbuf *pb) |
299 | rotate (GdkPixbuf *pb, int angle) |
155 | CODE: |
300 | CODE: |
156 | { |
301 | perlinterp_release (); |
157 | int w = gdk_pixbuf_get_width (pb); |
302 | if (angle < 0) |
158 | int h = gdk_pixbuf_get_height (pb); |
303 | angle += 360; |
159 | int bpp = gdk_pixbuf_get_n_channels (pb); |
304 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
160 | int x, y, i; |
305 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
161 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
306 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
162 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
307 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
163 | |
308 | : angle); |
164 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h); |
309 | perlinterp_acquire (); |
165 | |
|
|
166 | dst = gdk_pixbuf_get_pixels (RETVAL); |
|
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167 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
|
|
168 | |
|
|
169 | for (y = 0; y < h; y++) |
|
|
170 | for (x = 0; x < w; x++) |
|
|
171 | for (i = 0; i < bpp; i++) |
|
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172 | dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i]; |
|
|
173 | } |
|
|
174 | OUTPUT: |
310 | OUTPUT: |
175 | RETVAL |
311 | RETVAL |
176 | |
312 | |
177 | GdkPixbuf_noinc * |
313 | GdkPixbuf_noinc * |
178 | load_jpeg (char *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 (); |
|
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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 | |
|
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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; |
|
|
345 | else |
|
|
346 | iw = (ih * inw + inh - 1) / inh; |
|
|
347 | |
|
|
348 | config.options.bypass_filtering = 1; |
|
|
349 | config.options.no_fancy_upsampling = 1; |
|
|
350 | |
|
|
351 | config.options.use_scaling = 1; |
|
|
352 | config.options.scaled_width = iw; |
|
|
353 | config.options.scaled_height = ih; |
|
|
354 | } |
|
|
355 | else |
|
|
356 | { |
|
|
357 | iw = inw; |
|
|
358 | ih = inh; |
|
|
359 | } |
|
|
360 | |
|
|
361 | alpha = config.input.has_alpha; |
|
|
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; |
|
|
372 | |
|
|
373 | if (WebPDecode (data, data_size, &config) != VP8_STATUS_OK) |
|
|
374 | { |
|
|
375 | g_object_unref (RETVAL); |
|
|
376 | RETVAL = 0; |
|
|
377 | goto err; |
|
|
378 | } |
|
|
379 | |
|
|
380 | err: |
|
|
381 | perlinterp_acquire (); |
|
|
382 | #else |
|
|
383 | croak ("load_webp: webp not enabled at compile time"); |
|
|
384 | #endif |
|
|
385 | } |
|
|
386 | OUTPUT: |
|
|
387 | RETVAL |
|
|
388 | |
|
|
389 | GdkPixbuf_noinc * |
|
|
390 | load_jpeg (SV *path, int thumbnail = 0, int iw = 0, int ih = 0) |
179 | CODE: |
391 | CODE: |
180 | { |
392 | { |
181 | struct jpeg_decompress_struct cinfo; |
393 | struct jpeg_decompress_struct cinfo; |
182 | struct jpg_err_mgr jerr; |
394 | struct jpg_err_mgr jerr; |
183 | guchar *data; |
395 | guchar *data; |
184 | int rs; |
396 | int rs; |
185 | FILE *fp; |
397 | FILE *fp; |
186 | volatile GdkPixbuf *pb = 0; |
398 | volatile GdkPixbuf *pb = 0; |
|
|
399 | |
187 | RETVAL = 0; |
400 | RETVAL = 0; |
188 | |
401 | |
189 | if (!(fp = fopen (path, "rb"))) |
402 | fp = fopen (SvPVbyte_nolen (path), "rb"); |
|
|
403 | |
|
|
404 | if (!fp) |
190 | XSRETURN_UNDEF; |
405 | XSRETURN_UNDEF; |
|
|
406 | |
|
|
407 | perlinterp_release (); |
191 | |
408 | |
192 | cinfo.err = jpeg_std_error (&jerr.err); |
409 | cinfo.err = jpeg_std_error (&jerr.err); |
193 | |
410 | |
194 | jerr.err.error_exit = cv_error_exit; |
411 | jerr.err.error_exit = cv_error_exit; |
195 | jerr.err.output_message = cv_error_output; |
412 | jerr.err.output_message = cv_error_output; |
… | |
… | |
200 | jpeg_destroy_decompress (&cinfo); |
417 | jpeg_destroy_decompress (&cinfo); |
201 | |
418 | |
202 | if (pb) |
419 | if (pb) |
203 | g_object_unref ((gpointer)pb); |
420 | g_object_unref ((gpointer)pb); |
204 | |
421 | |
|
|
422 | perlinterp_acquire (); |
205 | XSRETURN_UNDEF; |
423 | XSRETURN_UNDEF; |
206 | } |
424 | } |
207 | |
425 | |
208 | jpeg_create_decompress (&cinfo); |
426 | jpeg_create_decompress (&cinfo); |
209 | |
427 | |
… | |
… | |
225 | { |
443 | { |
226 | cinfo.dct_method = JDCT_FASTEST; |
444 | cinfo.dct_method = JDCT_FASTEST; |
227 | cinfo.do_fancy_upsampling = FALSE; |
445 | cinfo.do_fancy_upsampling = FALSE; |
228 | |
446 | |
229 | while (cinfo.scale_denom < 8 |
447 | while (cinfo.scale_denom < 8 |
230 | && cinfo.output_width >= IW*4 |
448 | && cinfo.output_width >= iw*4 |
231 | && cinfo.output_height >= IH*4) |
449 | && cinfo.output_height >= ih*4) |
232 | { |
450 | { |
233 | cinfo.scale_denom <<= 1; |
451 | cinfo.scale_denom <<= 1; |
234 | jpeg_calc_output_dimensions (&cinfo); |
452 | jpeg_calc_output_dimensions (&cinfo); |
235 | } |
453 | } |
236 | } |
454 | } |
237 | |
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 | |
238 | 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); |
239 | if (!RETVAL) |
466 | if (!RETVAL) |
240 | longjmp (jerr.setjmp_buffer, 2); |
467 | longjmp (jerr.setjmp_buffer, 2); |
241 | |
468 | |
242 | data = gdk_pixbuf_get_pixels (RETVAL); |
469 | data = gdk_pixbuf_get_pixels (RETVAL); |
243 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
470 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
244 | |
|
|
245 | if (cinfo.output_components != 3) |
|
|
246 | longjmp (jerr.setjmp_buffer, 3); |
|
|
247 | |
471 | |
248 | jpeg_start_decompress (&cinfo); |
472 | jpeg_start_decompress (&cinfo); |
249 | |
473 | |
250 | while (cinfo.output_scanline < cinfo.output_height) |
474 | while (cinfo.output_scanline < cinfo.output_height) |
251 | { |
475 | { |
… | |
… | |
258 | rp [3] = (guchar *)rp [2] + rs; |
482 | rp [3] = (guchar *)rp [2] + rs; |
259 | |
483 | |
260 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
484 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
261 | } |
485 | } |
262 | |
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 | |
263 | jpeg_finish_decompress (&cinfo); |
516 | jpeg_finish_decompress (&cinfo); |
264 | fclose (fp); |
517 | fclose (fp); |
265 | jpeg_destroy_decompress (&cinfo); |
518 | jpeg_destroy_decompress (&cinfo); |
|
|
519 | perlinterp_acquire (); |
266 | } |
520 | } |
267 | OUTPUT: |
521 | OUTPUT: |
268 | RETVAL |
522 | RETVAL |
269 | |
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 | |
270 | ############################################################################# |
572 | ############################################################################# |
271 | |
573 | |
272 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
574 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
|
|
575 | |
|
|
576 | # currently only works for filenames (octet strings) |
273 | |
577 | |
274 | SV * |
578 | SV * |
275 | foldcase (SV *pathsv) |
579 | foldcase (SV *pathsv) |
276 | PROTOTYPE: $ |
580 | PROTOTYPE: $ |
277 | CODE: |
581 | CODE: |
278 | { |
582 | { |
279 | STRLEN plen; |
583 | STRLEN plen; |
280 | U8 *path = SvPVutf8 (pathsv, plen); |
584 | U8 *path = (U8 *)SvPV (pathsv, plen); |
281 | U8 *pend = path + plen; |
585 | U8 *pend = path + plen; |
282 | U8 dst [plen * 6 * 3], *dstp = dst; |
586 | U8 dst [plen * 6 * 3], *dstp = dst; |
283 | |
587 | |
284 | while (path < pend) |
588 | while (path < pend) |
285 | { |
589 | { |
286 | U8 ch = *path; |
590 | U8 ch = *path; |
287 | |
591 | |
288 | if (ch >= 'a' && ch <= 'z') |
592 | if (ch >= 'a' && ch <= 'z') |
289 | *dstp++ = *path++; |
593 | *dstp++ = *path++; |
|
|
594 | else if (ch >= 'A' && ch <= 'Z') |
|
|
595 | *dstp++ = *path++ + ('a' - 'A'); |
290 | else if (ch >= '0' && ch <= '9') |
596 | else if (ch >= '0' && ch <= '9') |
291 | { |
597 | { |
292 | STRLEN el, nl = 0; |
598 | STRLEN el, nl = 0; |
293 | while (*path >= '0' && *path <= '9' && path < pend) |
599 | while (*path >= '0' && *path <= '9' && path < pend) |
294 | path++, nl++; |
600 | path++, nl++; |
… | |
… | |
297 | *dstp++ = '0'; |
603 | *dstp++ = '0'; |
298 | |
604 | |
299 | memcpy (dstp, path - nl, nl); |
605 | memcpy (dstp, path - nl, nl); |
300 | dstp += nl; |
606 | dstp += nl; |
301 | } |
607 | } |
|
|
608 | else |
|
|
609 | *dstp++ = *path++; |
|
|
610 | #if 0 |
302 | else |
611 | else |
303 | { |
612 | { |
304 | STRLEN cl; |
613 | STRLEN cl; |
305 | to_utf8_fold (path, dstp, &cl); |
614 | to_utf8_fold (path, dstp, &cl); |
306 | dstp += cl; |
615 | dstp += cl; |
307 | path += is_utf8_char (path); |
616 | path += is_utf8_char (path); |
308 | } |
617 | } |
|
|
618 | #endif |
309 | } |
619 | } |
310 | |
620 | |
311 | RETVAL = newSVpvn (dst, dstp - dst); |
621 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
312 | } |
622 | } |
313 | OUTPUT: |
623 | OUTPUT: |
314 | RETVAL |
624 | RETVAL |
315 | |
625 | |
316 | GdkPixbuf_noinc * |
626 | GdkPixbuf_noinc * |
317 | p7_to_pb (int w, int h, guchar *src) |
627 | p7_to_pb (int w, int h, SV *src_sv) |
318 | PROTOTYPE: @ |
628 | PROTOTYPE: @ |
319 | CODE: |
629 | CODE: |
320 | { |
630 | { |
321 | int x, y; |
631 | int x, y; |
322 | guchar *dst, *d; |
632 | guchar *dst, *d; |
323 | int dstr; |
633 | int dstr; |
|
|
634 | guchar *src = (guchar *)SvPVbyte_nolen (src_sv); |
324 | |
635 | |
325 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
636 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
326 | dst = gdk_pixbuf_get_pixels (RETVAL); |
637 | dst = gdk_pixbuf_get_pixels (RETVAL); |
327 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
638 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
328 | |
639 | |
… | |
… | |
337 | } |
648 | } |
338 | } |
649 | } |
339 | OUTPUT: |
650 | OUTPUT: |
340 | RETVAL |
651 | RETVAL |
341 | |
652 | |
|
|
653 | ############################################################################# |
|
|
654 | |
|
|
655 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
|
|
656 | |
|
|
657 | void |
|
|
658 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
|
|
659 | CODE: |
|
|
660 | { |
|
|
661 | int w = gdk_pixbuf_get_width (pb); |
|
|
662 | int h = gdk_pixbuf_get_height (pb); |
|
|
663 | int x, y, i; |
|
|
664 | guchar *dst; |
|
|
665 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
666 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
667 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
668 | |
|
|
669 | a85_init (); |
|
|
670 | |
|
|
671 | for (y = 0; y < h; y++) |
|
|
672 | for (x = 0; x < w; x++) |
|
|
673 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
674 | a85_push (fp, src [x * bpp + y * sstr + i]); |
|
|
675 | |
|
|
676 | a85_finish (fp); |
|
|
677 | } |
|
|
678 | |
|
|
679 | void |
|
|
680 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
|
|
681 | CODE: |
|
|
682 | { |
|
|
683 | int w = gdk_pixbuf_get_width (pb); |
|
|
684 | int h = gdk_pixbuf_get_height (pb); |
|
|
685 | int x, y, i; |
|
|
686 | guchar *dst; |
|
|
687 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
688 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
689 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
690 | |
|
|
691 | for (y = 0; y < h; y++) |
|
|
692 | for (x = 0; x < w; x++) |
|
|
693 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
694 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
|
|
695 | } |
|
|
696 | |
|
|
697 | ############################################################################# |
|
|
698 | |
|
|
699 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
|
|
700 | |
342 | SV * |
701 | SV * |
343 | pb_to_p7 (GdkPixbuf *pb) |
702 | pb_to_hv84 (GdkPixbuf *pb) |
344 | CODE: |
703 | CODE: |
345 | { |
704 | { |
346 | int w = gdk_pixbuf_get_width (pb); |
705 | int w = gdk_pixbuf_get_width (pb); |
347 | int h = gdk_pixbuf_get_height (pb); |
706 | int h = gdk_pixbuf_get_height (pb); |
348 | int x, y; |
707 | int x, y; |
349 | guchar *dst; |
708 | guchar *dst; |
350 | int bpp = gdk_pixbuf_get_n_channels (pb); |
709 | int bpp = gdk_pixbuf_get_n_channels (pb); |
351 | guchar *src = gdk_pixbuf_get_pixels (pb); |
710 | guchar *src = gdk_pixbuf_get_pixels (pb); |
352 | int sstr = gdk_pixbuf_get_rowstride (pb); |
711 | int sstr = gdk_pixbuf_get_rowstride (pb); |
353 | int Er[IW], Eg[IW], Eb[IW]; |
|
|
354 | int seed = 77; |
|
|
355 | |
|
|
356 | RETVAL = newSV (w * h); |
|
|
357 | SvPOK_only (RETVAL); |
|
|
358 | SvCUR_set (RETVAL, w * h); |
|
|
359 | |
|
|
360 | dst = SvPVX (RETVAL); |
|
|
361 | |
|
|
362 | memset (Er, 0, sizeof (int) * IW); |
|
|
363 | memset (Eg, 0, sizeof (int) * IW); |
|
|
364 | memset (Eb, 0, sizeof (int) * IW); |
|
|
365 | |
|
|
366 | /* some primitive error distribution + random dithering */ |
|
|
367 | |
|
|
368 | for (y = 0; y < h; y++) |
|
|
369 | { |
|
|
370 | int er = 0, eg = 0, eb = 0; |
|
|
371 | |
|
|
372 | for (x = 0; x < w; x++) |
|
|
373 | { |
|
|
374 | int r, g, b; |
|
|
375 | guchar *p = src + x * bpp + y * sstr; |
|
|
376 | |
|
|
377 | r = ((p[0] + er + Er[x]) * 7 + (RAND & 127) + 64) / 255; |
|
|
378 | g = ((p[1] + eg + Eg[x]) * 7 + (RAND & 127) + 64) / 255; |
|
|
379 | b = ((p[2] + eb + Eb[x]) * 3 + (RAND & 127) + 64) / 255; |
|
|
380 | |
|
|
381 | r = r > 7 ? 7 : r < 0 ? 0 : r; |
|
|
382 | g = g > 7 ? 7 : g < 0 ? 0 : g; |
|
|
383 | b = b > 3 ? 3 : b < 0 ? 0 : b; |
|
|
384 | |
|
|
385 | er += p[0] - (r * 255 + 4) / 7; |
|
|
386 | eg += p[1] - (g * 255 + 4) / 7; |
|
|
387 | eb += p[2] - (b * 255 + 2) / 3; |
|
|
388 | |
|
|
389 | Er[x] = er >> 1; er -= (er + 1) >> 1; |
|
|
390 | Eg[x] = eg >> 1; eg -= (eg + 1) >> 1; |
|
|
391 | Eb[x] = eb >> 1; eb -= (eb + 1) >> 1; |
|
|
392 | |
|
|
393 | *dst++ = r << 5 | g << 2 | b; |
|
|
394 | } |
|
|
395 | } |
|
|
396 | } |
|
|
397 | OUTPUT: |
|
|
398 | RETVAL |
|
|
399 | |
|
|
400 | ############################################################################# |
|
|
401 | |
|
|
402 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
|
|
403 | |
|
|
404 | void |
|
|
405 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
|
|
406 | CODE: |
|
|
407 | { |
|
|
408 | int w = gdk_pixbuf_get_width (pb); |
|
|
409 | int h = gdk_pixbuf_get_height (pb); |
|
|
410 | int x, y, i; |
|
|
411 | guchar *dst; |
|
|
412 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
413 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
414 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
415 | |
|
|
416 | a85_init (); |
|
|
417 | |
|
|
418 | for (y = 0; y < h; y++) |
|
|
419 | for (x = 0; x < w; x++) |
|
|
420 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
421 | a85_push (fp, src [x * bpp + y * sstr + i]); |
|
|
422 | |
|
|
423 | a85_finish (fp); |
|
|
424 | } |
|
|
425 | |
|
|
426 | void |
|
|
427 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
|
|
428 | CODE: |
|
|
429 | { |
|
|
430 | int w = gdk_pixbuf_get_width (pb); |
|
|
431 | int h = gdk_pixbuf_get_height (pb); |
|
|
432 | int x, y, i; |
|
|
433 | guchar *dst; |
|
|
434 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
435 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
436 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
437 | |
|
|
438 | for (y = 0; y < h; y++) |
|
|
439 | for (x = 0; x < w; x++) |
|
|
440 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
441 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
|
|
442 | } |
|
|
443 | |
|
|
444 | ############################################################################# |
|
|
445 | |
|
|
446 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
|
|
447 | |
|
|
448 | SV * |
|
|
449 | pb_to_hv84 (GdkPixbuf *pb) |
|
|
450 | CODE: |
|
|
451 | { |
|
|
452 | int w = gdk_pixbuf_get_width (pb); |
|
|
453 | int h = gdk_pixbuf_get_height (pb); |
|
|
454 | int x, y; |
|
|
455 | guchar *dst; |
|
|
456 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
457 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
458 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
459 | |
712 | |
460 | RETVAL = newSV (6 * 8 * 12 / 8); |
713 | RETVAL = newSV (6 * 8 * 12 / 8); |
461 | SvPOK_only (RETVAL); |
714 | SvPOK_only (RETVAL); |
462 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
715 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
463 | |
716 | |
464 | dst = SvPVX (RETVAL); |
717 | dst = (guchar *)SvPVX (RETVAL); |
465 | |
718 | |
466 | /* some primitive error distribution + random dithering */ |
719 | /* some primitive error distribution + random dithering */ |
467 | |
720 | |
468 | for (y = 0; y < h; y++) |
721 | for (y = 0; y < h; y++) |
469 | { |
722 | { |
… | |
… | |
532 | ############################################################################# |
785 | ############################################################################# |
533 | |
786 | |
534 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
787 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
535 | |
788 | |
536 | SV * |
789 | SV * |
537 | make_histograms (SV *ar) |
790 | extract_features (SV *ar) |
538 | CODE: |
791 | CODE: |
539 | { |
792 | { |
540 | int i; |
793 | int i; |
541 | AV *av, *result; |
794 | AV *av, *result; |
542 | |
795 | |
543 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
796 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
544 | croak ("Not an array ref as first argument to make_histogram"); |
797 | croak ("Not an array ref as first argument to extract_features"); |
545 | |
798 | |
546 | av = (AV *) SvRV (ar); |
799 | av = (AV *) SvRV (ar); |
547 | result = newAV (); |
800 | result = newAV (); |
548 | |
801 | |
549 | for (i = 0; i <= av_len (av); ++i) |
802 | for (i = 0; i <= av_len (av); ++i) |
550 | { |
803 | { |
551 | const int HISTSIZE = 64; |
|
|
552 | |
|
|
553 | int j; |
|
|
554 | SV *sv = *av_fetch (av, i, 1); |
804 | SV *sv = *av_fetch (av, i, 1); |
555 | STRLEN len; |
|
|
556 | char *buf = SvPVbyte (sv, len); |
|
|
557 | |
|
|
558 | int tmphist[HISTSIZE]; |
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559 | float *hist; |
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560 | |
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561 | SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); |
805 | SV *histsv = newSV (9 * sizeof (float) + 1); |
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806 | |
562 | SvPOK_on (histsv); |
807 | SvPOK_on (histsv); |
563 | SvCUR_set (histsv, HISTSIZE * sizeof (float)); |
808 | SvCUR_set (histsv, 9 * sizeof (float)); |
564 | hist = (float *)SvPVX (histsv); |
809 | float *hist = (float *)SvPVX (histsv); |
565 | |
810 | |
566 | Zero (tmphist, sizeof (tmphist), char); |
811 | struct feature f_h, f_s, f_v; |
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812 | feature_init (&f_h); |
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813 | feature_init (&f_s); |
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814 | feature_init (&f_v); |
567 | |
815 | |
568 | for (j = len; j--; ) |
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569 | { |
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570 | unsigned int idx |
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571 | = ((*buf & 0xc0) >> 2) |
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572 | | ((*buf & 0x18) >> 1) |
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573 | | (*buf & 0x03); |
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574 | |
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575 | ++tmphist[idx]; |
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576 | ++buf; |
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577 | } |
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578 | |
816 | { |
579 | for (j = 0; j < HISTSIZE; ++j) |
817 | STRLEN len; |
580 | hist[j] = (float)tmphist[j] / (len + 1e-30); |
818 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
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819 | while (len >= 3) |
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820 | { |
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821 | unsigned int r, g, b, h, s, v; |
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822 | r = *buf++; g = *buf++; b = *buf++; |
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823 | rgb_to_hsv (r, g, b, &h, &s, &v); |
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824 | |
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825 | feature_update_pass_1 (&f_h, h); |
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826 | feature_update_pass_1 (&f_s, s); |
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827 | feature_update_pass_1 (&f_v, v); |
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828 | |
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829 | len -= 3; |
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830 | } |
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|
831 | |
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832 | feature_finish_pass_1 (&f_h); |
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833 | feature_finish_pass_1 (&f_s); |
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834 | feature_finish_pass_1 (&f_v); |
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835 | } |
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836 | |
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|
837 | { |
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|
838 | STRLEN len; |
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839 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
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840 | while (len >= 3) |
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841 | { |
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842 | unsigned int r, g, b, h, s, v; |
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|
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); |
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|
847 | feature_update_pass_2 (&f_s, s); |
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|
848 | feature_update_pass_2 (&f_v, v); |
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|
849 | |
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|
850 | len -= 3; |
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|
851 | } |
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852 | |
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|
853 | feature_finish_pass_2 (&f_h); |
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854 | feature_finish_pass_2 (&f_s); |
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|
855 | feature_finish_pass_2 (&f_v); |
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|
856 | } |
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|
857 | |
|
|
858 | hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.; |
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|
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; |
581 | |
861 | |
582 | av_push (result, histsv); |
862 | av_push (result, histsv); |
583 | } |
863 | } |
584 | |
864 | |
585 | RETVAL = newRV_noinc ((SV *)result); |
865 | RETVAL = newRV_noinc ((SV *)result); |
586 | } |
866 | } |
587 | OUTPUT: |
867 | OUTPUT: |
588 | RETVAL |
868 | RETVAL |
589 | |
869 | |
590 | |
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