… | |
… | |
9 | #include <magic.h> |
9 | #include <magic.h> |
10 | |
10 | |
11 | #include <jpeglib.h> |
11 | #include <jpeglib.h> |
12 | #include <glib.h> |
12 | #include <glib.h> |
13 | #include <gtk/gtk.h> |
13 | #include <gtk/gtk.h> |
|
|
14 | #include <gdk/gdkx.h> |
14 | #include <gdk-pixbuf/gdk-pixbuf.h> |
15 | #include <gdk-pixbuf/gdk-pixbuf.h> |
15 | |
16 | |
16 | #include <gperl.h> |
17 | #include <gperl.h> |
17 | #include <gtk2perl.h> |
18 | #include <gtk2perl.h> |
18 | |
19 | |
|
|
20 | #include <assert.h> |
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21 | |
|
|
22 | #if WEBP |
|
|
23 | #include <webp/decode.h> |
|
|
24 | #endif |
|
|
25 | |
|
|
26 | #include "perlmulticore.h" |
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|
27 | |
19 | #define IW 80 /* MUST match Schnauzer.pm! */ |
28 | #define IW 80 /* MUST match Schnauzer.pm! */ |
20 | #define IH 60 /* MUST match Schnauzer.pm! */ |
29 | #define IH 60 /* MUST match Schnauzer.pm! */ |
21 | |
30 | |
22 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
31 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
23 | |
32 | |
24 | #define LINELENGTH 240 |
33 | #define LINELENGTH 240 |
25 | |
34 | |
26 | #define ELLIPSIS "\xe2\x80\xa6" |
35 | #define ELLIPSIS "\xe2\x80\xa6" |
|
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36 | |
|
|
37 | typedef char *octet_string; |
|
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38 | |
|
|
39 | static magic_t magic_cookie[2]; /* !mime, mime */ |
27 | |
40 | |
28 | struct jpg_err_mgr |
41 | struct jpg_err_mgr |
29 | { |
42 | { |
30 | struct jpeg_error_mgr err; |
43 | struct jpeg_error_mgr err; |
31 | jmp_buf setjmp_buffer; |
44 | jmp_buf setjmp_buffer; |
32 | }; |
45 | }; |
33 | |
46 | |
34 | static void |
47 | static void |
35 | cv_error_exit (j_common_ptr cinfo) |
48 | cv_error_exit (j_common_ptr cinfo) |
36 | { |
49 | { |
|
|
50 | cinfo->err->output_message (cinfo); |
37 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
51 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
38 | } |
52 | } |
39 | |
53 | |
40 | static void |
54 | static void |
41 | cv_error_output (j_common_ptr cinfo) |
55 | cv_error_output (j_common_ptr cinfo) |
42 | { |
56 | { |
|
|
57 | char msg[JMSG_LENGTH_MAX]; |
|
|
58 | |
|
|
59 | cinfo->err->format_message (cinfo, msg); |
|
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60 | |
|
|
61 | fprintf (stderr, "JPEG decoding error: %s\n", msg); |
43 | return; |
62 | return; |
44 | } |
63 | } |
45 | |
64 | |
46 | static void |
65 | static void |
47 | 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, |
… | |
… | |
68 | |
87 | |
69 | *h &= 255; |
88 | *h &= 255; |
70 | } |
89 | } |
71 | } |
90 | } |
72 | |
91 | |
|
|
92 | struct feature { |
|
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93 | float v1, v2, v3; // mean, square, cube |
|
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94 | int n; |
|
|
95 | }; |
|
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96 | |
|
|
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 | |
|
|
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 | |
|
|
121 | f->v1 /= f->n; |
|
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122 | } |
|
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123 | |
|
|
124 | static void |
|
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125 | feature_update_pass_2 (struct feature *f, unsigned int v) |
|
|
126 | { |
|
|
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 | |
|
|
139 | f->v2 /= f->n; |
|
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140 | f->v3 /= f->n; |
|
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141 | |
|
|
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 | } |
|
|
146 | |
73 | static guint32 a85_val; |
147 | static guint32 a85_val; |
74 | static guint a85_cnt; |
148 | static guint a85_cnt; |
75 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
149 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
76 | |
150 | |
77 | static void |
151 | static void |
… | |
… | |
89 | if (!--a85_cnt) |
163 | if (!--a85_cnt) |
90 | { |
164 | { |
91 | a85_cnt = 4; |
165 | a85_cnt = 4; |
92 | if (a85_val) |
166 | if (a85_val) |
93 | { |
167 | { |
94 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
168 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
95 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
169 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
96 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
170 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
97 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
171 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
98 | a85_ptr[0] = (a85_val ) + 33; |
172 | a85_ptr[0] = (a85_val ) + 33; |
99 | |
173 | |
100 | a85_ptr += 5; |
174 | a85_ptr += 5; |
101 | } |
175 | } |
… | |
… | |
147 | |
221 | |
148 | OUTPUT: |
222 | OUTPUT: |
149 | RETVAL |
223 | RETVAL |
150 | |
224 | |
151 | const char * |
225 | const char * |
152 | magic (const char *path) |
226 | magic (SV *path_or_data) |
|
|
227 | ALIAS: |
|
|
228 | magic = 0 |
|
|
229 | magic_mime = 1 |
|
|
230 | magic_buffer = 2 |
|
|
231 | magic_buffer_mime = 3 |
153 | CODE: |
232 | CODE: |
154 | { |
233 | { |
155 | static magic_t cookie; |
234 | STRLEN len; |
|
|
235 | char *data = SvPVbyte (path_or_data, len); |
156 | |
236 | |
157 | if (!cookie) |
237 | if (!magic_cookie[0]) |
|
|
238 | { |
|
|
239 | magic_cookie[0] = magic_open (MAGIC_SYMLINK); |
|
|
240 | magic_cookie[1] = magic_open (MAGIC_SYMLINK | MAGIC_MIME_TYPE); |
|
|
241 | magic_load (magic_cookie[0], 0); |
|
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242 | magic_load (magic_cookie[1], 0); |
158 | { |
243 | } |
159 | cookie = magic_open (MAGIC_NONE); |
|
|
160 | |
244 | |
161 | if (cookie) |
245 | perlinterp_release (); |
162 | magic_load (cookie, 0); |
|
|
163 | else |
|
|
164 | XSRETURN_UNDEF; |
|
|
165 | } |
|
|
166 | |
246 | |
167 | RETVAL = magic_file (cookie, path); |
247 | RETVAL = ix & 2 |
|
|
248 | ? magic_buffer (magic_cookie[ix & 1], data, len) |
|
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249 | : magic_file (magic_cookie[ix & 1], data); |
|
|
250 | |
|
|
251 | perlinterp_acquire (); |
168 | } |
252 | } |
169 | OUTPUT: |
253 | OUTPUT: |
170 | RETVAL |
254 | RETVAL |
171 | |
255 | |
172 | const char * |
|
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173 | magic_mime (const char *path) |
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174 | CODE: |
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175 | { |
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176 | static magic_t cookie; |
|
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177 | |
|
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178 | if (!cookie) |
|
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179 | { |
|
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180 | cookie = magic_open (MAGIC_MIME); |
|
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181 | |
|
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182 | if (cookie) |
|
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183 | magic_load (cookie, 0); |
|
|
184 | else |
|
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185 | XSRETURN_UNDEF; |
|
|
186 | } |
|
|
187 | |
|
|
188 | RETVAL = magic_file (cookie, path); |
|
|
189 | } |
|
|
190 | OUTPUT: |
|
|
191 | RETVAL |
|
|
192 | |
|
|
193 | # missing in Gtk2 perl module |
256 | # missing/broken in Gtk2 perl module |
|
|
257 | |
|
|
258 | void |
|
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259 | gdk_window_clear_hints (GdkWindow *window) |
|
|
260 | CODE: |
|
|
261 | gdk_window_set_geometry_hints (window, 0, 0); |
194 | |
262 | |
195 | gboolean |
263 | gboolean |
196 | gdk_net_wm_supports (GdkAtom property) |
264 | gdk_net_wm_supports (GdkAtom property) |
197 | CODE: |
265 | CODE: |
198 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
266 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
… | |
… | |
204 | RETVAL |
272 | RETVAL |
205 | |
273 | |
206 | GdkPixbuf_noinc * |
274 | GdkPixbuf_noinc * |
207 | dealpha_expose (GdkPixbuf *pb) |
275 | dealpha_expose (GdkPixbuf *pb) |
208 | CODE: |
276 | CODE: |
|
|
277 | perlinterp_release (); |
209 | { |
278 | { |
210 | int w = gdk_pixbuf_get_width (pb); |
279 | int w = gdk_pixbuf_get_width (pb); |
211 | int h = gdk_pixbuf_get_height (pb); |
280 | int h = gdk_pixbuf_get_height (pb); |
212 | int bpp = gdk_pixbuf_get_n_channels (pb); |
281 | int bpp = gdk_pixbuf_get_n_channels (pb); |
213 | int x, y, i; |
282 | int x, y, i; |
… | |
… | |
222 | for (x = 0; x < w; x++) |
291 | for (x = 0; x < w; x++) |
223 | for (y = 0; y < h; y++) |
292 | for (y = 0; y < h; y++) |
224 | for (i = 0; i < 3; i++) |
293 | for (i = 0; i < 3; i++) |
225 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
294 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
226 | } |
295 | } |
|
|
296 | perlinterp_acquire (); |
227 | OUTPUT: |
297 | OUTPUT: |
228 | RETVAL |
298 | RETVAL |
229 | |
299 | |
230 | GdkPixbuf_noinc * |
300 | GdkPixbuf_noinc * |
231 | rotate (GdkPixbuf *pb, int angle) |
301 | rotate (GdkPixbuf *pb, int angle) |
232 | CODE: |
302 | CODE: |
|
|
303 | perlinterp_release (); |
|
|
304 | if (angle < 0) |
|
|
305 | angle += 360; |
233 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
306 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
234 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
307 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
235 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
308 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
236 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
309 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
237 | : angle); |
310 | : angle); |
|
|
311 | perlinterp_acquire (); |
238 | OUTPUT: |
312 | OUTPUT: |
239 | RETVAL |
313 | RETVAL |
240 | |
314 | |
241 | GdkPixbuf_noinc * |
315 | GdkPixbuf_noinc * |
242 | load_jpeg (SV *path, int thumbnail=0) |
316 | decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
|
|
317 | CODE: |
|
|
318 | { |
|
|
319 | #if WEBP |
|
|
320 | guchar *data; |
|
|
321 | STRLEN data_size; |
|
|
322 | int alpha; |
|
|
323 | WebPDecoderConfig config; |
|
|
324 | int inw, inh; |
|
|
325 | |
|
|
326 | data = SvPVbyte (image_data, data_size); |
|
|
327 | |
|
|
328 | perlinterp_release (); |
|
|
329 | |
|
|
330 | RETVAL = 0; |
|
|
331 | |
|
|
332 | if (!WebPInitDecoderConfig (&config)) |
|
|
333 | goto err; |
|
|
334 | |
|
|
335 | config.options.use_threads = 1; |
|
|
336 | |
|
|
337 | if (WebPGetFeatures (data, data_size, &config.input) != VP8_STATUS_OK) |
|
|
338 | goto err; |
|
|
339 | |
|
|
340 | inw = config.input.width; |
|
|
341 | inh = config.input.height; |
|
|
342 | |
|
|
343 | if (thumbnail) |
|
|
344 | { |
|
|
345 | if (inw * ih > inh * iw) |
|
|
346 | ih = (iw * inh + inw - 1) / inw; |
|
|
347 | else |
|
|
348 | iw = (ih * inw + inh - 1) / inh; |
|
|
349 | |
|
|
350 | config.options.bypass_filtering = 1; |
|
|
351 | config.options.no_fancy_upsampling = 1; |
|
|
352 | |
|
|
353 | config.options.use_scaling = 1; |
|
|
354 | config.options.scaled_width = iw; |
|
|
355 | config.options.scaled_height = ih; |
|
|
356 | } |
|
|
357 | else |
|
|
358 | { |
|
|
359 | iw = inw; |
|
|
360 | ih = inh; |
|
|
361 | } |
|
|
362 | |
|
|
363 | alpha = config.input.has_alpha; |
|
|
364 | |
|
|
365 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!alpha, 8, iw, ih); |
|
|
366 | if (!RETVAL) |
|
|
367 | goto err; |
|
|
368 | |
|
|
369 | config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB; |
|
|
370 | config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL); |
|
|
371 | config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL); |
|
|
372 | config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL); |
|
|
373 | config.output.is_external_memory = 1; |
|
|
374 | |
|
|
375 | if (WebPDecode (data, data_size, &config) != VP8_STATUS_OK) |
|
|
376 | { |
|
|
377 | g_object_unref (RETVAL); |
|
|
378 | RETVAL = 0; |
|
|
379 | goto err; |
|
|
380 | } |
|
|
381 | |
|
|
382 | err: |
|
|
383 | perlinterp_acquire (); |
|
|
384 | #else |
|
|
385 | croak ("load_webp: webp not enabled at compile time"); |
|
|
386 | #endif |
|
|
387 | } |
|
|
388 | OUTPUT: |
|
|
389 | RETVAL |
|
|
390 | |
|
|
391 | GdkPixbuf_noinc * |
|
|
392 | load_jpeg (SV *path, int thumbnail = 0, int iw = 0, int ih = 0) |
243 | CODE: |
393 | CODE: |
244 | { |
394 | { |
245 | struct jpeg_decompress_struct cinfo; |
395 | struct jpeg_decompress_struct cinfo; |
246 | struct jpg_err_mgr jerr; |
396 | struct jpg_err_mgr jerr; |
247 | guchar *data; |
397 | guchar *data; |
… | |
… | |
254 | fp = fopen (SvPVbyte_nolen (path), "rb"); |
404 | fp = fopen (SvPVbyte_nolen (path), "rb"); |
255 | |
405 | |
256 | if (!fp) |
406 | if (!fp) |
257 | XSRETURN_UNDEF; |
407 | XSRETURN_UNDEF; |
258 | |
408 | |
|
|
409 | perlinterp_release (); |
|
|
410 | |
259 | cinfo.err = jpeg_std_error (&jerr.err); |
411 | cinfo.err = jpeg_std_error (&jerr.err); |
260 | |
412 | |
261 | jerr.err.error_exit = cv_error_exit; |
413 | jerr.err.error_exit = cv_error_exit; |
262 | jerr.err.output_message = cv_error_output; |
414 | jerr.err.output_message = cv_error_output; |
263 | |
415 | |
… | |
… | |
267 | jpeg_destroy_decompress (&cinfo); |
419 | jpeg_destroy_decompress (&cinfo); |
268 | |
420 | |
269 | if (pb) |
421 | if (pb) |
270 | g_object_unref ((gpointer)pb); |
422 | g_object_unref ((gpointer)pb); |
271 | |
423 | |
|
|
424 | perlinterp_acquire (); |
272 | XSRETURN_UNDEF; |
425 | XSRETURN_UNDEF; |
273 | } |
426 | } |
274 | |
427 | |
275 | jpeg_create_decompress (&cinfo); |
428 | jpeg_create_decompress (&cinfo); |
276 | |
429 | |
… | |
… | |
292 | { |
445 | { |
293 | cinfo.dct_method = JDCT_FASTEST; |
446 | cinfo.dct_method = JDCT_FASTEST; |
294 | cinfo.do_fancy_upsampling = FALSE; |
447 | cinfo.do_fancy_upsampling = FALSE; |
295 | |
448 | |
296 | while (cinfo.scale_denom < 8 |
449 | while (cinfo.scale_denom < 8 |
297 | && cinfo.output_width >= IW*4 |
450 | && cinfo.output_width >= iw*4 |
298 | && cinfo.output_height >= IH*4) |
451 | && cinfo.output_height >= ih*4) |
299 | { |
452 | { |
300 | cinfo.scale_denom <<= 1; |
453 | cinfo.scale_denom <<= 1; |
301 | jpeg_calc_output_dimensions (&cinfo); |
454 | jpeg_calc_output_dimensions (&cinfo); |
302 | } |
455 | } |
303 | } |
456 | } |
304 | |
457 | |
|
|
458 | if (cinfo.output_components != 3) |
|
|
459 | longjmp (jerr.setjmp_buffer, 3); |
|
|
460 | |
|
|
461 | if (cinfo.jpeg_color_space == JCS_YCCK || cinfo.jpeg_color_space == JCS_CMYK) |
|
|
462 | { |
|
|
463 | cinfo.out_color_space = JCS_CMYK; |
|
|
464 | cinfo.output_components = 4; |
|
|
465 | } |
|
|
466 | |
305 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height); |
467 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, cinfo.output_components == 4, 8, cinfo.output_width, cinfo.output_height); |
306 | if (!RETVAL) |
468 | if (!RETVAL) |
307 | longjmp (jerr.setjmp_buffer, 2); |
469 | longjmp (jerr.setjmp_buffer, 2); |
308 | |
470 | |
309 | data = gdk_pixbuf_get_pixels (RETVAL); |
471 | data = gdk_pixbuf_get_pixels (RETVAL); |
310 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
472 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
311 | |
|
|
312 | if (cinfo.output_components != 3) |
|
|
313 | longjmp (jerr.setjmp_buffer, 3); |
|
|
314 | |
473 | |
315 | jpeg_start_decompress (&cinfo); |
474 | jpeg_start_decompress (&cinfo); |
316 | |
475 | |
317 | while (cinfo.output_scanline < cinfo.output_height) |
476 | while (cinfo.output_scanline < cinfo.output_height) |
318 | { |
477 | { |
… | |
… | |
325 | rp [3] = (guchar *)rp [2] + rs; |
484 | rp [3] = (guchar *)rp [2] + rs; |
326 | |
485 | |
327 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
486 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
328 | } |
487 | } |
329 | |
488 | |
|
|
489 | if (cinfo.out_color_space == JCS_CMYK) |
|
|
490 | { |
|
|
491 | guchar *end = data + cinfo.output_height * rs; |
|
|
492 | |
|
|
493 | while (data < end) |
|
|
494 | { |
|
|
495 | U32 c = data [0]; |
|
|
496 | U32 m = data [1]; |
|
|
497 | U32 y = data [2]; |
|
|
498 | U32 k = data [3]; |
|
|
499 | |
|
|
500 | if (0) |
|
|
501 | if (cinfo.Adobe_transform == 2) |
|
|
502 | { |
|
|
503 | c ^= 0xff; |
|
|
504 | m ^= 0xff; |
|
|
505 | y ^= 0xff; |
|
|
506 | k ^= 0xff; |
|
|
507 | } |
|
|
508 | |
|
|
509 | data [0] = (c * k + 0x80) / 0xff; |
|
|
510 | data [1] = (m * k + 0x80) / 0xff; |
|
|
511 | data [2] = (y * k + 0x80) / 0xff; |
|
|
512 | data [3] = 0xff; |
|
|
513 | |
|
|
514 | data += 4; |
|
|
515 | } |
|
|
516 | } |
|
|
517 | |
330 | jpeg_finish_decompress (&cinfo); |
518 | jpeg_finish_decompress (&cinfo); |
331 | fclose (fp); |
519 | fclose (fp); |
332 | jpeg_destroy_decompress (&cinfo); |
520 | jpeg_destroy_decompress (&cinfo); |
|
|
521 | perlinterp_acquire (); |
333 | } |
522 | } |
334 | OUTPUT: |
523 | OUTPUT: |
335 | RETVAL |
524 | RETVAL |
336 | |
525 | |
337 | void |
526 | void |
338 | compare (GdkPixbuf *a, GdkPixbuf *b) |
527 | compare (GdkPixbuf *a, GdkPixbuf *b) |
339 | PPCODE: |
528 | PPCODE: |
|
|
529 | perlinterp_release (); |
340 | { |
530 | { |
341 | int w = gdk_pixbuf_get_width (a); |
531 | int w = gdk_pixbuf_get_width (a); |
342 | int h = gdk_pixbuf_get_height (a); |
532 | int h = gdk_pixbuf_get_height (a); |
|
|
533 | |
343 | int sa = gdk_pixbuf_get_rowstride (a); |
534 | int sa = gdk_pixbuf_get_rowstride (a); |
344 | int sb = gdk_pixbuf_get_rowstride (b); |
535 | int sb = gdk_pixbuf_get_rowstride (b); |
345 | |
536 | |
346 | guchar *pa = gdk_pixbuf_get_pixels (a); |
537 | guchar *pa = gdk_pixbuf_get_pixels (a); |
347 | guchar *pb = gdk_pixbuf_get_pixels (b); |
538 | guchar *pb = gdk_pixbuf_get_pixels (b); |
… | |
… | |
355 | assert (gdk_pixbuf_get_n_channels (b) == 3); |
546 | assert (gdk_pixbuf_get_n_channels (b) == 3); |
356 | |
547 | |
357 | double diff = 0.; |
548 | double diff = 0.; |
358 | int peak = 0; |
549 | int peak = 0; |
359 | |
550 | |
360 | if (x && y) |
551 | if (w && h) |
361 | for (y = 0; y < h; y++) |
552 | for (y = 0; y < h; y++) |
362 | { |
553 | { |
363 | guchar *pa_ = pa + y * sa; |
554 | guchar *pa_ = pa + y * sa; |
364 | guchar *pb_ = pb + y * sb; |
555 | guchar *pb_ = pb + y * sb; |
365 | |
556 | |
… | |
… | |
371 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
562 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
372 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
563 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
373 | } |
564 | } |
374 | } |
565 | } |
375 | |
566 | |
|
|
567 | perlinterp_acquire (); |
|
|
568 | |
376 | EXTEND (SP, 2); |
569 | EXTEND (SP, 2); |
377 | PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); |
570 | PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); |
378 | PUSHs (sv_2mortal (newSVnv (peak / 255.))); |
571 | PUSHs (sv_2mortal (newSVnv (peak / 255.))); |
379 | } |
572 | } |
380 | |
573 | |
381 | ############################################################################# |
574 | ############################################################################# |
382 | |
575 | |
383 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
576 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
384 | |
577 | |
|
|
578 | # currently only works for filenames (octet strings) |
|
|
579 | |
385 | SV * |
580 | SV * |
386 | foldcase (SV *pathsv) |
581 | foldcase (SV *pathsv) |
387 | PROTOTYPE: $ |
582 | PROTOTYPE: $ |
388 | CODE: |
583 | CODE: |
389 | { |
584 | { |
390 | STRLEN plen; |
585 | STRLEN plen; |
391 | U8 *path = (U8 *)SvPVutf8 (pathsv, plen); |
586 | U8 *path = (U8 *)SvPV (pathsv, plen); |
392 | U8 *pend = path + plen; |
587 | U8 *pend = path + plen; |
393 | U8 dst [plen * 6 * 3], *dstp = dst; |
588 | U8 dst [plen * 6 * 3], *dstp = dst; |
394 | |
589 | |
395 | while (path < pend) |
590 | while (path < pend) |
396 | { |
591 | { |
397 | U8 ch = *path; |
592 | U8 ch = *path; |
398 | |
593 | |
399 | if (ch >= 'a' && ch <= 'z') |
594 | if (ch >= 'a' && ch <= 'z') |
400 | *dstp++ = *path++; |
595 | *dstp++ = *path++; |
|
|
596 | else if (ch >= 'A' && ch <= 'Z') |
|
|
597 | *dstp++ = *path++ + ('a' - 'A'); |
401 | else if (ch >= '0' && ch <= '9') |
598 | else if (ch >= '0' && ch <= '9') |
402 | { |
599 | { |
403 | STRLEN el, nl = 0; |
600 | STRLEN el, nl = 0; |
404 | while (*path >= '0' && *path <= '9' && path < pend) |
601 | while (*path >= '0' && *path <= '9' && path < pend) |
405 | path++, nl++; |
602 | path++, nl++; |
… | |
… | |
408 | *dstp++ = '0'; |
605 | *dstp++ = '0'; |
409 | |
606 | |
410 | memcpy (dstp, path - nl, nl); |
607 | memcpy (dstp, path - nl, nl); |
411 | dstp += nl; |
608 | dstp += nl; |
412 | } |
609 | } |
|
|
610 | else |
|
|
611 | *dstp++ = *path++; |
|
|
612 | #if 0 |
413 | else |
613 | else |
414 | { |
614 | { |
415 | STRLEN cl; |
615 | STRLEN cl; |
416 | to_utf8_fold (path, dstp, &cl); |
616 | to_utf8_fold (path, dstp, &cl); |
417 | dstp += cl; |
617 | dstp += cl; |
418 | path += is_utf8_char (path); |
618 | path += is_utf8_char (path); |
419 | } |
619 | } |
|
|
620 | #endif |
420 | } |
621 | } |
421 | |
622 | |
422 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
623 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
423 | } |
624 | } |
424 | OUTPUT: |
625 | OUTPUT: |
… | |
… | |
586 | ############################################################################# |
787 | ############################################################################# |
587 | |
788 | |
588 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
789 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
589 | |
790 | |
590 | SV * |
791 | SV * |
591 | make_histograms (SV *ar) |
792 | extract_features (SV *ar) |
592 | CODE: |
793 | CODE: |
593 | { |
794 | { |
594 | int i; |
795 | int i; |
595 | AV *av, *result; |
796 | AV *av, *result; |
596 | |
797 | |
597 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
798 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
598 | croak ("Not an array ref as first argument to make_histogram"); |
799 | croak ("Not an array ref as first argument to extract_features"); |
599 | |
800 | |
600 | av = (AV *) SvRV (ar); |
801 | av = (AV *) SvRV (ar); |
601 | result = newAV (); |
802 | result = newAV (); |
602 | |
803 | |
603 | for (i = 0; i <= av_len (av); ++i) |
804 | for (i = 0; i <= av_len (av); ++i) |
604 | { |
805 | { |
605 | const int HISTSIZE = 64; |
|
|
606 | |
|
|
607 | int j; |
|
|
608 | SV *sv = *av_fetch (av, i, 1); |
806 | SV *sv = *av_fetch (av, i, 1); |
609 | STRLEN len; |
|
|
610 | char *buf = SvPVbyte (sv, len); |
|
|
611 | |
|
|
612 | int tmphist[HISTSIZE]; |
|
|
613 | float *hist; |
|
|
614 | |
|
|
615 | SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); |
807 | SV *histsv = newSV (9 * sizeof (float) + 1); |
|
|
808 | |
616 | SvPOK_on (histsv); |
809 | SvPOK_on (histsv); |
617 | SvCUR_set (histsv, HISTSIZE * sizeof (float)); |
810 | SvCUR_set (histsv, 9 * sizeof (float)); |
618 | hist = (float *)SvPVX (histsv); |
811 | float *hist = (float *)SvPVX (histsv); |
619 | |
812 | |
620 | Zero (tmphist, sizeof (tmphist), char); |
813 | struct feature f_h, f_s, f_v; |
|
|
814 | feature_init (&f_h); |
|
|
815 | feature_init (&f_s); |
|
|
816 | feature_init (&f_v); |
621 | |
817 | |
622 | for (j = len; j--; ) |
|
|
623 | { |
|
|
624 | unsigned int idx |
|
|
625 | = ((*buf & 0xc0) >> 2) |
|
|
626 | | ((*buf & 0x18) >> 1) |
|
|
627 | | (*buf & 0x03); |
|
|
628 | |
|
|
629 | ++tmphist[idx]; |
|
|
630 | ++buf; |
|
|
631 | } |
|
|
632 | |
818 | { |
633 | for (j = 0; j < HISTSIZE; ++j) |
819 | STRLEN len; |
634 | hist[j] = (float)tmphist[j] / (len + 1e-30); |
820 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
|
|
821 | while (len >= 3) |
|
|
822 | { |
|
|
823 | unsigned int r, g, b, h, s, v; |
|
|
824 | r = *buf++; g = *buf++; b = *buf++; |
|
|
825 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
826 | |
|
|
827 | feature_update_pass_1 (&f_h, h); |
|
|
828 | feature_update_pass_1 (&f_s, s); |
|
|
829 | feature_update_pass_1 (&f_v, v); |
|
|
830 | |
|
|
831 | len -= 3; |
|
|
832 | } |
|
|
833 | |
|
|
834 | feature_finish_pass_1 (&f_h); |
|
|
835 | feature_finish_pass_1 (&f_s); |
|
|
836 | feature_finish_pass_1 (&f_v); |
|
|
837 | } |
|
|
838 | |
|
|
839 | { |
|
|
840 | STRLEN len; |
|
|
841 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
|
|
842 | while (len >= 3) |
|
|
843 | { |
|
|
844 | unsigned int r, g, b, h, s, v; |
|
|
845 | r = *buf++; g = *buf++; b = *buf++; |
|
|
846 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
847 | |
|
|
848 | feature_update_pass_2 (&f_h, h); |
|
|
849 | feature_update_pass_2 (&f_s, s); |
|
|
850 | feature_update_pass_2 (&f_v, v); |
|
|
851 | |
|
|
852 | len -= 3; |
|
|
853 | } |
|
|
854 | |
|
|
855 | feature_finish_pass_2 (&f_h); |
|
|
856 | feature_finish_pass_2 (&f_s); |
|
|
857 | feature_finish_pass_2 (&f_v); |
|
|
858 | } |
|
|
859 | |
|
|
860 | hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.; |
|
|
861 | hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ; |
|
|
862 | hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5; |
635 | |
863 | |
636 | av_push (result, histsv); |
864 | av_push (result, histsv); |
637 | } |
865 | } |
638 | |
866 | |
639 | RETVAL = newRV_noinc ((SV *)result); |
867 | RETVAL = newRV_noinc ((SV *)result); |
640 | } |
868 | } |
641 | OUTPUT: |
869 | OUTPUT: |
642 | RETVAL |
870 | RETVAL |
643 | |
871 | |
644 | |
|
|