1 | #include "EXTERN.h" |
1 | #include "EXTERN.h" |
2 | #include "perl.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
4 | |
4 | |
|
|
5 | #include <string.h> |
5 | #include <setjmp.h> |
6 | #include <setjmp.h> |
|
|
7 | #include <math.h> |
|
|
8 | |
|
|
9 | #include <magic.h> |
6 | |
10 | |
7 | #include <jpeglib.h> |
11 | #include <jpeglib.h> |
|
|
12 | #include <jerror.h> |
|
|
13 | |
|
|
14 | #include <glib.h> |
|
|
15 | #include <gtk/gtk.h> |
|
|
16 | #include <gdk/gdkx.h> |
8 | #include <gdk-pixbuf/gdk-pixbuf.h> |
17 | #include <gdk-pixbuf/gdk-pixbuf.h> |
9 | |
18 | |
10 | #include <gperl.h> |
19 | #include <gperl.h> |
11 | #include <gtk2perl.h> |
20 | #include <gtk2perl.h> |
12 | |
21 | |
|
|
22 | #include <assert.h> |
|
|
23 | |
|
|
24 | #if WEBP |
|
|
25 | #include <webp/demux.h> |
|
|
26 | #include <webp/decode.h> |
|
|
27 | #endif |
|
|
28 | |
|
|
29 | #if JXL |
|
|
30 | #include <jxl/decode.h> |
|
|
31 | #include "jxl/thread_parallel_runner.h" |
|
|
32 | #endif |
|
|
33 | |
|
|
34 | #include "perlmulticore.h" |
|
|
35 | |
13 | #define IW 80 /* MUST match Schnauer.pm! */ |
36 | #define IW 80 /* MUST match Schnauzer.pm! */ |
14 | #define IH 60 /* MUST match Schnauer.pm! */ |
37 | #define IH 60 /* MUST match Schnauzer.pm! */ |
15 | |
|
|
16 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
|
|
17 | |
38 | |
18 | #define LINELENGTH 240 |
39 | #define LINELENGTH 240 |
19 | |
40 | |
20 | #define ELLIPSIS "\xe2\x80\xa6" |
41 | #define ELLIPSIS "\xe2\x80\xa6" |
|
|
42 | |
|
|
43 | typedef char *octet_string; |
|
|
44 | |
|
|
45 | static magic_t magic_cookie[2]; /* !mime, mime */ |
21 | |
46 | |
22 | struct jpg_err_mgr |
47 | struct jpg_err_mgr |
23 | { |
48 | { |
24 | struct jpeg_error_mgr err; |
49 | struct jpeg_error_mgr err; |
25 | jmp_buf setjmp_buffer; |
50 | jmp_buf setjmp_buffer; |
26 | }; |
51 | }; |
27 | |
52 | |
28 | static void |
53 | static void |
29 | cv_error_exit (j_common_ptr cinfo) |
54 | cv_error_exit (j_common_ptr cinfo) |
30 | { |
55 | { |
|
|
56 | cinfo->err->output_message (cinfo); |
31 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
57 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
32 | } |
58 | } |
33 | |
59 | |
34 | static void |
60 | static void |
35 | cv_error_output (j_common_ptr cinfo) |
61 | cv_error_output (j_common_ptr cinfo) |
36 | { |
62 | { |
|
|
63 | char msg[JMSG_LENGTH_MAX]; |
|
|
64 | |
|
|
65 | cinfo->err->format_message (cinfo, msg); |
|
|
66 | |
|
|
67 | fprintf (stderr, "JPEG decoding error: %s\n", msg); |
37 | return; |
68 | return; |
38 | } |
69 | } |
39 | |
70 | |
40 | static void |
71 | static void |
41 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
72 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
… | |
… | |
62 | |
93 | |
63 | *h &= 255; |
94 | *h &= 255; |
64 | } |
95 | } |
65 | } |
96 | } |
66 | |
97 | |
|
|
98 | struct feature { |
|
|
99 | float v1, v2, v3; // mean, square, cube |
|
|
100 | int n; |
|
|
101 | }; |
|
|
102 | |
|
|
103 | static void |
|
|
104 | feature_init (struct feature *f) |
|
|
105 | { |
|
|
106 | f->v1 = 0.; |
|
|
107 | f->v2 = 0.; |
|
|
108 | f->v3 = 0.; |
|
|
109 | f->n = 0; |
|
|
110 | } |
|
|
111 | |
|
|
112 | // didn't find an algorithm to neatly do mean, variance and skew in one pass. |
|
|
113 | // elmex ist schuld. |
|
|
114 | static void |
|
|
115 | feature_update_pass_1 (struct feature *f, unsigned int v) |
|
|
116 | { |
|
|
117 | f->v1 += v; |
|
|
118 | f->n += 1; |
|
|
119 | } |
|
|
120 | |
|
|
121 | static void |
|
|
122 | feature_finish_pass_1 (struct feature *f) |
|
|
123 | { |
|
|
124 | if (f->n < 1) |
|
|
125 | return; |
|
|
126 | |
|
|
127 | f->v1 /= f->n; |
|
|
128 | } |
|
|
129 | |
|
|
130 | static void |
|
|
131 | feature_update_pass_2 (struct feature *f, unsigned int v) |
|
|
132 | { |
|
|
133 | float d = v - f->v1; |
|
|
134 | |
|
|
135 | f->v2 += d * d; |
|
|
136 | f->v3 += d * d * d; |
|
|
137 | } |
|
|
138 | |
|
|
139 | static void |
|
|
140 | feature_finish_pass_2 (struct feature *f) |
|
|
141 | { |
|
|
142 | if (f->n < 1) |
|
|
143 | return; |
|
|
144 | |
|
|
145 | f->v2 /= f->n; |
|
|
146 | f->v3 /= f->n; |
|
|
147 | |
|
|
148 | f->v1 /= 255.; |
|
|
149 | f->v2 /= 255. * 255.; f->v2 = sqrtf (f->v2); |
|
|
150 | f->v3 /= 255. * 255. * 255.; f->v3 = powf (fabsf (f->v3), 1./3.); |
|
|
151 | } |
|
|
152 | |
67 | static guint32 a85_val; |
153 | static guint32 a85_val; |
68 | static guint a85_cnt; |
154 | static guint a85_cnt; |
69 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
155 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
70 | |
156 | |
71 | static void |
157 | static void |
… | |
… | |
83 | if (!--a85_cnt) |
169 | if (!--a85_cnt) |
84 | { |
170 | { |
85 | a85_cnt = 4; |
171 | a85_cnt = 4; |
86 | if (a85_val) |
172 | if (a85_val) |
87 | { |
173 | { |
88 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
174 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
89 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
175 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
90 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
176 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
91 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
177 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
92 | a85_ptr[0] = (a85_val ) + 33; |
178 | a85_ptr[0] = (a85_val ) + 33; |
93 | |
179 | |
94 | a85_ptr += 5; |
180 | a85_ptr += 5; |
95 | } |
181 | } |
… | |
… | |
118 | |
204 | |
119 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
205 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
120 | } |
206 | } |
121 | |
207 | |
122 | ///////////////////////////////////////////////////////////////////////////// |
208 | ///////////////////////////////////////////////////////////////////////////// |
|
|
209 | // memory source for libjpeg |
|
|
210 | |
|
|
211 | static void cv_ms_init (j_decompress_ptr cinfo) |
|
|
212 | { |
|
|
213 | } |
|
|
214 | |
|
|
215 | static void cv_ms_term (j_decompress_ptr cinfo) |
|
|
216 | { |
|
|
217 | } |
|
|
218 | |
|
|
219 | static boolean cv_ms_fill (j_decompress_ptr cinfo) |
|
|
220 | { |
|
|
221 | // unexpected EOF, warn and generate fake EOI marker |
|
|
222 | |
|
|
223 | WARNMS (cinfo, JWRN_JPEG_EOF); |
|
|
224 | |
|
|
225 | struct jpeg_source_mgr *src = (struct jpeg_source_mgr *)cinfo->src; |
|
|
226 | |
|
|
227 | static const JOCTET eoi[] = { 0xFF, JPEG_EOI }; |
|
|
228 | |
|
|
229 | src->next_input_byte = eoi; |
|
|
230 | src->bytes_in_buffer = sizeof (eoi); |
|
|
231 | |
|
|
232 | return TRUE; |
|
|
233 | } |
|
|
234 | |
|
|
235 | static void cv_ms_skip (j_decompress_ptr cinfo, long num_bytes) |
|
|
236 | { |
|
|
237 | struct jpeg_source_mgr *src = (struct jpeg_source_mgr *)cinfo->src; |
|
|
238 | |
|
|
239 | src->next_input_byte += num_bytes; |
|
|
240 | src->bytes_in_buffer -= num_bytes; |
|
|
241 | } |
|
|
242 | |
|
|
243 | static void cv_jpeg_mem_src (j_decompress_ptr cinfo, void *buf, size_t buflen) |
|
|
244 | { |
|
|
245 | struct jpeg_source_mgr *src; |
|
|
246 | |
|
|
247 | if (!cinfo->src) |
|
|
248 | cinfo->src = (struct jpeg_source_mgr *) |
|
|
249 | (*cinfo->mem->alloc_small) ( |
|
|
250 | (j_common_ptr) cinfo, JPOOL_PERMANENT, sizeof (struct jpeg_source_mgr) |
|
|
251 | ); |
|
|
252 | |
|
|
253 | src = (struct jpeg_source_mgr *)cinfo->src; |
|
|
254 | src->init_source = cv_ms_init; |
|
|
255 | src->fill_input_buffer = cv_ms_fill; |
|
|
256 | src->skip_input_data = cv_ms_skip; |
|
|
257 | src->resync_to_restart = jpeg_resync_to_restart; |
|
|
258 | src->term_source = cv_ms_term; |
|
|
259 | src->next_input_byte = (JOCTET *)buf; |
|
|
260 | src->bytes_in_buffer = buflen; |
|
|
261 | } |
|
|
262 | |
|
|
263 | ///////////////////////////////////////////////////////////////////////////// |
|
|
264 | |
|
|
265 | /* great, the jpeg-xl reference implementaton requires us to parse bmff files */ |
|
|
266 | |
|
|
267 | struct bmff_box |
|
|
268 | { |
|
|
269 | char type[4]; |
|
|
270 | const uint8_t *ptr; |
|
|
271 | size_t size; |
|
|
272 | }; |
|
|
273 | |
|
|
274 | static int |
|
|
275 | bmff_parse_box (struct bmff_box *box, const uint8_t **next_in, size_t *avail_in) |
|
|
276 | { |
|
|
277 | if (*avail_in < 8) |
|
|
278 | return 0; |
|
|
279 | |
|
|
280 | box->size = ((*next_in)[0] << 24) |
|
|
281 | | ((*next_in)[1] << 16) |
|
|
282 | | ((*next_in)[2] << 8) |
|
|
283 | | ((*next_in)[3] ); |
|
|
284 | |
|
|
285 | if (box->size < 8) |
|
|
286 | return 0; |
|
|
287 | |
|
|
288 | if (*avail_in < box->size) |
|
|
289 | return 0; |
|
|
290 | |
|
|
291 | memcpy (box->type, *next_in + 4, 4); |
|
|
292 | box->ptr = *next_in + 8; |
|
|
293 | |
|
|
294 | *next_in += box->size; |
|
|
295 | *avail_in -= box->size; |
|
|
296 | |
|
|
297 | box->size -= 8; |
|
|
298 | |
|
|
299 | return 1; |
|
|
300 | } |
|
|
301 | |
|
|
302 | ///////////////////////////////////////////////////////////////////////////// |
123 | |
303 | |
124 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
304 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
125 | |
305 | |
126 | PROTOTYPES: ENABLE |
306 | PROTOTYPES: ENABLE |
127 | |
307 | |
|
|
308 | # calculate the common prefix length of two strings |
|
|
309 | # missing function in perl. really :) |
|
|
310 | int |
|
|
311 | common_prefix_length (a, b) |
|
|
312 | unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); |
|
|
313 | unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); |
|
|
314 | CODE: |
|
|
315 | RETVAL = 0; |
|
|
316 | |
|
|
317 | while (*a == *b && *a) |
|
|
318 | { |
|
|
319 | RETVAL += (*a & 0xc0) != 0x80; |
|
|
320 | a++, b++; |
|
|
321 | } |
|
|
322 | |
|
|
323 | OUTPUT: |
|
|
324 | RETVAL |
|
|
325 | |
|
|
326 | const char * |
|
|
327 | magic (SV *path_or_data) |
|
|
328 | ALIAS: |
|
|
329 | magic = 0 |
|
|
330 | magic_mime = 1 |
|
|
331 | magic_buffer = 2 |
|
|
332 | magic_buffer_mime = 3 |
|
|
333 | CODE: |
|
|
334 | { |
|
|
335 | STRLEN len; |
|
|
336 | char *data = SvPVbyte (path_or_data, len); |
|
|
337 | |
|
|
338 | if (!magic_cookie[0]) |
|
|
339 | { |
|
|
340 | magic_cookie[0] = magic_open (MAGIC_SYMLINK); |
|
|
341 | magic_cookie[1] = magic_open (MAGIC_SYMLINK | MAGIC_MIME_TYPE); |
|
|
342 | magic_load (magic_cookie[0], 0); |
|
|
343 | magic_load (magic_cookie[1], 0); |
|
|
344 | } |
|
|
345 | |
|
|
346 | perlinterp_release (); |
|
|
347 | |
|
|
348 | RETVAL = ix & 2 |
|
|
349 | ? magic_buffer (magic_cookie[ix & 1], data, len) |
|
|
350 | : magic_file (magic_cookie[ix & 1], data); |
|
|
351 | |
|
|
352 | perlinterp_acquire (); |
|
|
353 | } |
|
|
354 | OUTPUT: |
|
|
355 | RETVAL |
|
|
356 | |
|
|
357 | # missing/broken in Gtk2 perl module |
|
|
358 | |
|
|
359 | void |
|
|
360 | gdk_window_clear_hints (GdkWindow *window) |
|
|
361 | CODE: |
|
|
362 | gdk_window_set_geometry_hints (window, 0, 0); |
|
|
363 | |
|
|
364 | gboolean |
|
|
365 | gdk_net_wm_supports (GdkAtom property) |
|
|
366 | CODE: |
|
|
367 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
|
|
368 | RETVAL = gdk_net_wm_supports (property); |
|
|
369 | #else |
|
|
370 | RETVAL = 0; |
|
|
371 | #endif |
|
|
372 | OUTPUT: |
|
|
373 | RETVAL |
|
|
374 | |
128 | GdkPixbuf_noinc * |
375 | GdkPixbuf_noinc * |
129 | transpose (GdkPixbuf *pb) |
376 | dealpha_expose (GdkPixbuf *pb) |
130 | CODE: |
377 | CODE: |
|
|
378 | perlinterp_release (); |
131 | { |
379 | { |
132 | int w = gdk_pixbuf_get_width (pb); |
380 | int w = gdk_pixbuf_get_width (pb); |
133 | int h = gdk_pixbuf_get_height (pb); |
381 | int h = gdk_pixbuf_get_height (pb); |
134 | int bpp = gdk_pixbuf_get_n_channels (pb); |
382 | int bpp = gdk_pixbuf_get_n_channels (pb); |
135 | int x, y, i; |
383 | int x, y, i; |
136 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
384 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
137 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
385 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
138 | |
386 | |
139 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w); |
387 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
140 | |
388 | |
141 | dst = gdk_pixbuf_get_pixels (RETVAL); |
389 | dst = gdk_pixbuf_get_pixels (RETVAL); |
142 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
390 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
143 | |
391 | |
144 | for (y = 0; y < h; y++) |
|
|
145 | for (x = 0; x < w; x++) |
392 | for (x = 0; x < w; x++) |
|
|
393 | for (y = 0; y < h; y++) |
146 | for (i = 0; i < bpp; i++) |
394 | for (i = 0; i < 3; i++) |
147 | dst[y * bpp + x * dstr + i] = src[x * bpp + y * sstr + i]; |
395 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
148 | } |
396 | } |
|
|
397 | perlinterp_acquire (); |
149 | OUTPUT: |
398 | OUTPUT: |
150 | RETVAL |
399 | RETVAL |
151 | |
400 | |
152 | GdkPixbuf_noinc * |
401 | GdkPixbuf_noinc * |
153 | flop (GdkPixbuf *pb) |
402 | rotate (GdkPixbuf *pb, int angle) |
154 | CODE: |
403 | CODE: |
155 | { |
404 | perlinterp_release (); |
156 | int w = gdk_pixbuf_get_width (pb); |
405 | if (angle < 0) |
157 | int h = gdk_pixbuf_get_height (pb); |
406 | angle += 360; |
158 | int bpp = gdk_pixbuf_get_n_channels (pb); |
407 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
159 | int x, y, i; |
408 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
160 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
409 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
161 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
410 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
162 | |
411 | : angle); |
163 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h); |
412 | perlinterp_acquire (); |
164 | |
|
|
165 | dst = gdk_pixbuf_get_pixels (RETVAL); |
|
|
166 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
|
|
167 | |
|
|
168 | for (y = 0; y < h; y++) |
|
|
169 | for (x = 0; x < w; x++) |
|
|
170 | for (i = 0; i < bpp; i++) |
|
|
171 | dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i]; |
|
|
172 | } |
|
|
173 | OUTPUT: |
413 | OUTPUT: |
174 | RETVAL |
414 | RETVAL |
175 | |
415 | |
|
|
416 | const char * |
|
|
417 | filetype (SV *image_data) |
|
|
418 | CODE: |
|
|
419 | { |
|
|
420 | STRLEN data_len; |
|
|
421 | U8 *data = SvPVbyte (image_data, data_len); |
|
|
422 | static const unsigned char jxl_header[] = { |
|
|
423 | 0, 0, 0, 0x0c, 0x4a, 0x58, 0x4c, 0x20, |
|
|
424 | 0x0d, 0xa, 0x87, 0x0a, 0, 0, 0, 0x14, |
|
|
425 | 0x66, 0x74, 0x79, 0x70, 0x6a, 0x78, 0x6c, 0x20, |
|
|
426 | 0, 0, 0, 0, 0x6a, 0x78, 0x6c, 0x20, |
|
|
427 | }; |
|
|
428 | |
|
|
429 | if (data_len >= 20 |
|
|
430 | && data[0] == 0xff |
|
|
431 | && data[1] == 0xd8 |
|
|
432 | && data[2] == 0xff) |
|
|
433 | RETVAL = "image/jpeg"; |
|
|
434 | else if (data_len >= 12 |
|
|
435 | && data[ 0] == (U8)'R' |
|
|
436 | && data[ 1] == (U8)'I' |
|
|
437 | && data[ 2] == (U8)'F' |
|
|
438 | && data[ 3] == (U8)'F' |
|
|
439 | && data[ 8] == (U8)'W' |
|
|
440 | && data[ 9] == (U8)'E' |
|
|
441 | && data[10] == (U8)'B' |
|
|
442 | && data[11] == (U8)'P') |
|
|
443 | RETVAL = "image/webp"; |
|
|
444 | else if (data_len >= 16 |
|
|
445 | && data[ 0] == 0x89 |
|
|
446 | && data[ 1] == (U8)'P' |
|
|
447 | && data[ 2] == (U8)'N' |
|
|
448 | && data[ 3] == (U8)'G' |
|
|
449 | && data[ 4] == 0x0d |
|
|
450 | && data[ 5] == 0x0a |
|
|
451 | && data[ 6] == 0x1a |
|
|
452 | && data[ 7] == 0x0a) |
|
|
453 | RETVAL = "image/png"; |
|
|
454 | else if (data_len >= sizeof (jxl_header) && memcmp (data, jxl_header, sizeof (jxl_header)) == 0) |
|
|
455 | RETVAL = "image/jxl"; |
|
|
456 | else |
|
|
457 | XSRETURN_UNDEF; |
|
|
458 | } |
|
|
459 | OUTPUT: |
|
|
460 | RETVAL |
|
|
461 | |
176 | GdkPixbuf_noinc * |
462 | GdkPixbuf_noinc * |
177 | load_jpeg (char *path, int thumbnail=0) |
463 | decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
|
|
464 | CODE: |
|
|
465 | { |
|
|
466 | #if WEBP |
|
|
467 | STRLEN data_size; |
|
|
468 | int alpha; |
|
|
469 | WebPData data; |
|
|
470 | WebPDemuxer *demux; |
|
|
471 | WebPIterator iter; |
|
|
472 | WebPDecoderConfig config; |
|
|
473 | int inw, inh; |
|
|
474 | |
|
|
475 | data.bytes = (uint8_t *)SvPVbyte (image_data, data_size); |
|
|
476 | data.size = data_size; |
|
|
477 | |
|
|
478 | perlinterp_release (); |
|
|
479 | |
|
|
480 | RETVAL = 0; |
|
|
481 | |
|
|
482 | if (!(demux = WebPDemux (&data))) |
|
|
483 | goto err_demux; |
|
|
484 | |
|
|
485 | if (!WebPDemuxGetFrame (demux, 1, &iter)) |
|
|
486 | goto err_iter; |
|
|
487 | |
|
|
488 | if (!WebPInitDecoderConfig (&config)) |
|
|
489 | goto err_iter; |
|
|
490 | |
|
|
491 | config.options.use_threads = 1; |
|
|
492 | |
|
|
493 | if (WebPGetFeatures (iter.fragment.bytes, iter.fragment.size, &config.input) != VP8_STATUS_OK) |
|
|
494 | goto err_iter; |
|
|
495 | |
|
|
496 | inw = config.input.width; |
|
|
497 | inh = config.input.height; |
|
|
498 | |
|
|
499 | if (thumbnail) |
|
|
500 | { |
|
|
501 | if (inw * ih > inh * iw) |
|
|
502 | ih = (iw * inh + inw - 1) / inw; |
|
|
503 | else |
|
|
504 | iw = (ih * inw + inh - 1) / inh; |
|
|
505 | |
|
|
506 | config.options.bypass_filtering = 1; |
|
|
507 | config.options.no_fancy_upsampling = 1; |
|
|
508 | |
|
|
509 | config.options.use_scaling = 1; |
|
|
510 | config.options.scaled_width = iw; |
|
|
511 | config.options.scaled_height = ih; |
|
|
512 | } |
|
|
513 | else |
|
|
514 | { |
|
|
515 | iw = inw; |
|
|
516 | ih = inh; |
|
|
517 | } |
|
|
518 | |
|
|
519 | alpha = !!config.input.has_alpha; |
|
|
520 | |
|
|
521 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, alpha, 8, iw, ih); |
|
|
522 | if (!RETVAL) |
|
|
523 | goto err_iter; |
|
|
524 | |
|
|
525 | config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB; |
|
|
526 | config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL); |
|
|
527 | config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL); |
|
|
528 | config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL); |
|
|
529 | config.output.is_external_memory = 1; |
|
|
530 | |
|
|
531 | if (WebPDecode (iter.fragment.bytes, iter.fragment.size, &config) != VP8_STATUS_OK) |
|
|
532 | { |
|
|
533 | g_object_unref (RETVAL); |
|
|
534 | RETVAL = 0; |
|
|
535 | goto err_iter; |
|
|
536 | } |
|
|
537 | |
|
|
538 | err_iter: |
|
|
539 | WebPDemuxReleaseIterator (&iter); |
|
|
540 | err_demux: |
|
|
541 | WebPDemuxDelete (demux); |
|
|
542 | |
|
|
543 | perlinterp_acquire (); |
|
|
544 | #else |
|
|
545 | croak ("load_webp: webp not enabled at compile time"); |
|
|
546 | #endif |
|
|
547 | } |
|
|
548 | OUTPUT: |
|
|
549 | RETVAL |
|
|
550 | |
|
|
551 | GdkPixbuf_noinc * |
|
|
552 | decode_jxl (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
|
|
553 | CODE: |
|
|
554 | { |
|
|
555 | #if JXL |
|
|
556 | JxlDecoder *dec = JxlDecoderCreate (0); |
|
|
557 | JxlBasicInfo info; |
|
|
558 | const uint8_t *next_in = (uint8_t *)SvPVbyte_nolen (image_data); |
|
|
559 | size_t avail_in = SvCUR (image_data); |
|
|
560 | const char *error = 0; |
|
|
561 | void *runner = 0; |
|
|
562 | struct bmff_box box; |
|
|
563 | |
|
|
564 | perlinterp_release (); |
|
|
565 | |
|
|
566 | RETVAL = 0; |
|
|
567 | |
|
|
568 | error = "JxlDecoderCreate failed"; |
|
|
569 | if (!dec) |
|
|
570 | goto done; |
|
|
571 | |
|
|
572 | runner = JxlThreadParallelRunnerCreate (0, JxlThreadParallelRunnerDefaultNumWorkerThreads ()); |
|
|
573 | |
|
|
574 | error = "JxlDecoderSetParallelRunner failed"; |
|
|
575 | if (JxlDecoderSetParallelRunner (dec, JxlThreadParallelRunner, runner) != JXL_DEC_SUCCESS) |
|
|
576 | goto done; |
|
|
577 | |
|
|
578 | error = "JxlDecoderSubscribeEvents failed"; |
|
|
579 | if (JxlDecoderSubscribeEvents (dec, JXL_DEC_FULL_IMAGE | 0xffc0) != JXL_DEC_SUCCESS) |
|
|
580 | goto done; |
|
|
581 | |
|
|
582 | for (;;) |
|
|
583 | { |
|
|
584 | JxlDecoderStatus status = JxlDecoderProcessInput (dec, &next_in, &avail_in); |
|
|
585 | |
|
|
586 | printf ("status %d\n",status); |
|
|
587 | |
|
|
588 | switch (status) |
|
|
589 | { |
|
|
590 | case JXL_DEC_ERROR: |
|
|
591 | error = "JxlDecoderProcessInput failed"; |
|
|
592 | goto done; |
|
|
593 | |
|
|
594 | case JXL_DEC_NEED_MORE_INPUT: |
|
|
595 | error = "incomplete file"; |
|
|
596 | goto done; |
|
|
597 | |
|
|
598 | case JXL_DEC_SUCCESS: |
|
|
599 | goto done; |
|
|
600 | |
|
|
601 | case JXL_DEC_NEED_IMAGE_OUT_BUFFER: |
|
|
602 | { |
|
|
603 | error = "JxlDecoderGetBasicInfo failed"; |
|
|
604 | if (JxlDecoderGetBasicInfo (dec, &info) != JXL_DEC_SUCCESS) |
|
|
605 | goto done; |
|
|
606 | |
|
|
607 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!info.alpha_bits, 8, info.xsize, info.ysize); |
|
|
608 | error = "unable to allocate pixbuf"; |
|
|
609 | if (!RETVAL) |
|
|
610 | goto done; |
|
|
611 | |
|
|
612 | JxlPixelFormat format = { |
|
|
613 | info.alpha_bits ? 4 : 3, |
|
|
614 | JXL_TYPE_UINT8, |
|
|
615 | JXL_NATIVE_ENDIAN, |
|
|
616 | gdk_pixbuf_get_rowstride (RETVAL) |
|
|
617 | }; |
|
|
618 | |
|
|
619 | error = "JxlDecoderSetImageOutBuffer failed"; |
|
|
620 | if (JxlDecoderSetImageOutBuffer ( |
|
|
621 | dec, |
|
|
622 | &format, |
|
|
623 | gdk_pixbuf_get_pixels (RETVAL), |
|
|
624 | gdk_pixbuf_get_byte_length (RETVAL) |
|
|
625 | ) != JXL_DEC_SUCCESS) |
|
|
626 | goto done; |
|
|
627 | } |
|
|
628 | break; |
|
|
629 | |
|
|
630 | default: |
|
|
631 | error = "unexpected event"; |
|
|
632 | goto done; |
|
|
633 | } |
|
|
634 | } |
|
|
635 | |
|
|
636 | done: |
|
|
637 | if (dec) |
|
|
638 | JxlDecoderDestroy (dec); |
|
|
639 | |
|
|
640 | if (runner) |
|
|
641 | JxlThreadParallelRunnerDestroy (runner); |
|
|
642 | |
|
|
643 | perlinterp_acquire (); |
|
|
644 | |
|
|
645 | if (error) |
|
|
646 | { |
|
|
647 | if (RETVAL) |
|
|
648 | g_object_unref (RETVAL); |
|
|
649 | |
|
|
650 | croak ("load_jxl: %s", error); |
|
|
651 | } |
|
|
652 | #else |
|
|
653 | croak ("load_jxl: jpeg-xl not enabled at compile time"); |
|
|
654 | #endif |
|
|
655 | } |
|
|
656 | OUTPUT: |
|
|
657 | RETVAL |
|
|
658 | |
|
|
659 | GdkPixbuf_noinc * |
|
|
660 | decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
178 | CODE: |
661 | CODE: |
179 | { |
662 | { |
180 | struct jpeg_decompress_struct cinfo; |
663 | struct jpeg_decompress_struct cinfo; |
181 | struct jpg_err_mgr jerr; |
664 | struct jpg_err_mgr jerr; |
182 | guchar *data; |
|
|
183 | int rs; |
665 | int rs; |
184 | FILE *fp; |
|
|
185 | volatile GdkPixbuf *pb = 0; |
666 | volatile GdkPixbuf *pb = 0; |
|
|
667 | STRLEN data_len; |
|
|
668 | guchar *data = SvPVbyte (image_data, data_len); |
|
|
669 | |
186 | RETVAL = 0; |
670 | RETVAL = 0; |
187 | |
671 | |
188 | if (!(fp = fopen (path, "rb"))) |
672 | perlinterp_release (); |
189 | XSRETURN_UNDEF; |
|
|
190 | |
673 | |
191 | cinfo.err = jpeg_std_error (&jerr.err); |
674 | cinfo.err = jpeg_std_error (&jerr.err); |
192 | |
675 | |
193 | jerr.err.error_exit = cv_error_exit; |
676 | jerr.err.error_exit = cv_error_exit; |
194 | jerr.err.output_message = cv_error_output; |
677 | jerr.err.output_message = cv_error_output; |
195 | |
678 | |
196 | if ((rs = setjmp (jerr.setjmp_buffer))) |
679 | if ((rs = setjmp (jerr.setjmp_buffer))) |
197 | { |
680 | { |
198 | fclose (fp); |
|
|
199 | jpeg_destroy_decompress (&cinfo); |
681 | jpeg_destroy_decompress (&cinfo); |
200 | |
682 | |
201 | if (pb) |
683 | if (pb) |
202 | g_object_unref ((gpointer)pb); |
684 | g_object_unref ((gpointer)pb); |
203 | |
685 | |
|
|
686 | perlinterp_acquire (); |
204 | XSRETURN_UNDEF; |
687 | XSRETURN_UNDEF; |
205 | } |
688 | } |
206 | |
689 | |
|
|
690 | if (!data_len) |
|
|
691 | longjmp (jerr.setjmp_buffer, 4); |
|
|
692 | |
207 | jpeg_create_decompress (&cinfo); |
693 | jpeg_create_decompress (&cinfo); |
|
|
694 | cv_jpeg_mem_src (&cinfo, data, data_len); |
208 | |
695 | |
209 | jpeg_stdio_src (&cinfo, fp); |
|
|
210 | jpeg_read_header (&cinfo, TRUE); |
696 | jpeg_read_header (&cinfo, TRUE); |
211 | |
697 | |
212 | cinfo.dct_method = JDCT_DEFAULT; |
698 | cinfo.dct_method = JDCT_DEFAULT; |
213 | cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ |
699 | cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ |
214 | cinfo.do_block_smoothing = FALSE; |
700 | cinfo.do_block_smoothing = FALSE; |
… | |
… | |
224 | { |
710 | { |
225 | cinfo.dct_method = JDCT_FASTEST; |
711 | cinfo.dct_method = JDCT_FASTEST; |
226 | cinfo.do_fancy_upsampling = FALSE; |
712 | cinfo.do_fancy_upsampling = FALSE; |
227 | |
713 | |
228 | while (cinfo.scale_denom < 8 |
714 | while (cinfo.scale_denom < 8 |
229 | && (cinfo.output_width >> 1) >= IW |
715 | && cinfo.output_width >= iw*4 |
230 | && (cinfo.output_height >> 1) >= IH) |
716 | && cinfo.output_height >= ih*4) |
231 | { |
717 | { |
232 | cinfo.scale_denom <<= 1; |
718 | cinfo.scale_denom <<= 1; |
233 | jpeg_calc_output_dimensions (&cinfo); |
719 | jpeg_calc_output_dimensions (&cinfo); |
234 | } |
720 | } |
235 | } |
721 | } |
236 | |
722 | |
|
|
723 | if (cinfo.output_components != 3) |
|
|
724 | longjmp (jerr.setjmp_buffer, 3); |
|
|
725 | |
|
|
726 | if (cinfo.jpeg_color_space == JCS_YCCK || cinfo.jpeg_color_space == JCS_CMYK) |
|
|
727 | { |
|
|
728 | cinfo.out_color_space = JCS_CMYK; |
|
|
729 | cinfo.output_components = 4; |
|
|
730 | } |
|
|
731 | |
237 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height); |
732 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, cinfo.output_components == 4, 8, cinfo.output_width, cinfo.output_height); |
238 | if (!RETVAL) |
733 | if (!RETVAL) |
239 | longjmp (jerr.setjmp_buffer, 2); |
734 | longjmp (jerr.setjmp_buffer, 2); |
240 | |
735 | |
241 | data = gdk_pixbuf_get_pixels (RETVAL); |
736 | data = gdk_pixbuf_get_pixels (RETVAL); |
242 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
737 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
243 | |
|
|
244 | if (cinfo.output_components != 3) |
|
|
245 | longjmp (jerr.setjmp_buffer, 3); |
|
|
246 | |
738 | |
247 | jpeg_start_decompress (&cinfo); |
739 | jpeg_start_decompress (&cinfo); |
248 | |
740 | |
249 | while (cinfo.output_scanline < cinfo.output_height) |
741 | while (cinfo.output_scanline < cinfo.output_height) |
250 | { |
742 | { |
… | |
… | |
257 | rp [3] = (guchar *)rp [2] + rs; |
749 | rp [3] = (guchar *)rp [2] + rs; |
258 | |
750 | |
259 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
751 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
260 | } |
752 | } |
261 | |
753 | |
|
|
754 | if (cinfo.out_color_space == JCS_CMYK) |
|
|
755 | { |
|
|
756 | guchar *end = data + cinfo.output_height * rs; |
|
|
757 | |
|
|
758 | while (data < end) |
|
|
759 | { |
|
|
760 | U32 c = data [0]; |
|
|
761 | U32 m = data [1]; |
|
|
762 | U32 y = data [2]; |
|
|
763 | U32 k = data [3]; |
|
|
764 | |
|
|
765 | if (0) |
|
|
766 | if (cinfo.Adobe_transform == 2) |
|
|
767 | { |
|
|
768 | c ^= 0xff; |
|
|
769 | m ^= 0xff; |
|
|
770 | y ^= 0xff; |
|
|
771 | k ^= 0xff; |
|
|
772 | } |
|
|
773 | |
|
|
774 | data [0] = (c * k + 0x80) / 0xff; |
|
|
775 | data [1] = (m * k + 0x80) / 0xff; |
|
|
776 | data [2] = (y * k + 0x80) / 0xff; |
|
|
777 | data [3] = 0xff; |
|
|
778 | |
|
|
779 | data += 4; |
|
|
780 | } |
|
|
781 | } |
|
|
782 | |
262 | jpeg_finish_decompress (&cinfo); |
783 | jpeg_finish_decompress (&cinfo); |
263 | fclose (fp); |
|
|
264 | jpeg_destroy_decompress (&cinfo); |
784 | jpeg_destroy_decompress (&cinfo); |
|
|
785 | perlinterp_acquire (); |
265 | } |
786 | } |
266 | OUTPUT: |
787 | OUTPUT: |
267 | RETVAL |
788 | RETVAL |
268 | |
789 | |
|
|
790 | void |
|
|
791 | compare (GdkPixbuf *a, GdkPixbuf *b) |
|
|
792 | PPCODE: |
|
|
793 | perlinterp_release (); |
|
|
794 | { |
|
|
795 | int w = gdk_pixbuf_get_width (a); |
|
|
796 | int h = gdk_pixbuf_get_height (a); |
|
|
797 | |
|
|
798 | int sa = gdk_pixbuf_get_rowstride (a); |
|
|
799 | int sb = gdk_pixbuf_get_rowstride (b); |
|
|
800 | |
|
|
801 | guchar *pa = gdk_pixbuf_get_pixels (a); |
|
|
802 | guchar *pb = gdk_pixbuf_get_pixels (b); |
|
|
803 | |
|
|
804 | int x, y; |
|
|
805 | |
|
|
806 | assert (w == gdk_pixbuf_get_width (b)); |
|
|
807 | assert (h == gdk_pixbuf_get_height (b)); |
|
|
808 | |
|
|
809 | assert (gdk_pixbuf_get_n_channels (a) == 3); |
|
|
810 | assert (gdk_pixbuf_get_n_channels (b) == 3); |
|
|
811 | |
|
|
812 | double diff = 0.; |
|
|
813 | int peak = 0; |
|
|
814 | |
|
|
815 | if (w && h) |
|
|
816 | for (y = 0; y < h; y++) |
|
|
817 | { |
|
|
818 | guchar *pa_ = pa + y * sa; |
|
|
819 | guchar *pb_ = pb + y * sb; |
|
|
820 | |
|
|
821 | for (x = 0; x < w; x++) |
|
|
822 | { |
|
|
823 | int d; |
|
|
824 | |
|
|
825 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
826 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
827 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
828 | } |
|
|
829 | } |
|
|
830 | |
|
|
831 | perlinterp_acquire (); |
|
|
832 | |
|
|
833 | EXTEND (SP, 2); |
|
|
834 | PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); |
|
|
835 | PUSHs (sv_2mortal (newSVnv (peak / 255.))); |
|
|
836 | } |
|
|
837 | |
269 | ############################################################################# |
838 | ############################################################################# |
270 | |
839 | |
271 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
840 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
272 | |
841 | |
|
|
842 | # currently only works for filenames (octet strings) |
|
|
843 | |
|
|
844 | SV * |
|
|
845 | foldcase (SV *pathsv) |
|
|
846 | PROTOTYPE: $ |
|
|
847 | CODE: |
|
|
848 | { |
|
|
849 | STRLEN plen; |
|
|
850 | U8 *path = (U8 *)SvPV (pathsv, plen); |
|
|
851 | U8 *pend = path + plen; |
|
|
852 | U8 dst [plen * 6 * 3], *dstp = dst; |
|
|
853 | |
|
|
854 | while (path < pend) |
|
|
855 | { |
|
|
856 | U8 ch = *path; |
|
|
857 | |
|
|
858 | if (ch >= 'a' && ch <= 'z') |
|
|
859 | *dstp++ = *path++; |
|
|
860 | else if (ch >= 'A' && ch <= 'Z') |
|
|
861 | *dstp++ = *path++ + ('a' - 'A'); |
|
|
862 | else if (ch >= '0' && ch <= '9') |
|
|
863 | { |
|
|
864 | STRLEN el, nl = 0; |
|
|
865 | while (*path >= '0' && *path <= '9' && path < pend) |
|
|
866 | path++, nl++; |
|
|
867 | |
|
|
868 | for (el = nl; el < 6; el++) |
|
|
869 | *dstp++ = '0'; |
|
|
870 | |
|
|
871 | memcpy (dstp, path - nl, nl); |
|
|
872 | dstp += nl; |
|
|
873 | } |
|
|
874 | else |
|
|
875 | *dstp++ = *path++; |
|
|
876 | #if 0 |
|
|
877 | else |
|
|
878 | { |
|
|
879 | STRLEN cl; |
|
|
880 | to_utf8_fold (path, dstp, &cl); |
|
|
881 | dstp += cl; |
|
|
882 | path += is_utf8_char (path); |
|
|
883 | } |
|
|
884 | #endif |
|
|
885 | } |
|
|
886 | |
|
|
887 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
|
|
888 | } |
|
|
889 | OUTPUT: |
|
|
890 | RETVAL |
|
|
891 | |
273 | GdkPixbuf_noinc * |
892 | GdkPixbuf_noinc * |
274 | p7_to_pb (int w, int h, guchar *src) |
893 | p7_to_pb (int w, int h, SV *src_sv) |
|
|
894 | PROTOTYPE: @ |
275 | CODE: |
895 | CODE: |
276 | { |
896 | { |
277 | int x, y; |
897 | int x, y; |
278 | guchar *dst, *d; |
898 | guchar *dst, *d; |
279 | int dstr; |
899 | int dstr; |
|
|
900 | guchar *src = (guchar *)SvPVbyte_nolen (src_sv); |
280 | |
901 | |
281 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
902 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h); |
282 | dst = gdk_pixbuf_get_pixels (RETVAL); |
903 | dst = gdk_pixbuf_get_pixels (RETVAL); |
283 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
904 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
284 | |
905 | |
… | |
… | |
293 | } |
914 | } |
294 | } |
915 | } |
295 | OUTPUT: |
916 | OUTPUT: |
296 | RETVAL |
917 | RETVAL |
297 | |
918 | |
|
|
919 | ############################################################################# |
|
|
920 | |
|
|
921 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
|
|
922 | |
|
|
923 | void |
|
|
924 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
|
|
925 | CODE: |
|
|
926 | { |
|
|
927 | int w = gdk_pixbuf_get_width (pb); |
|
|
928 | int h = gdk_pixbuf_get_height (pb); |
|
|
929 | int x, y, i; |
|
|
930 | guchar *dst; |
|
|
931 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
932 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
933 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
934 | |
|
|
935 | a85_init (); |
|
|
936 | |
|
|
937 | for (y = 0; y < h; y++) |
|
|
938 | for (x = 0; x < w; x++) |
|
|
939 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
940 | a85_push (fp, src [x * bpp + y * sstr + i]); |
|
|
941 | |
|
|
942 | a85_finish (fp); |
|
|
943 | } |
|
|
944 | |
|
|
945 | void |
|
|
946 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
|
|
947 | CODE: |
|
|
948 | { |
|
|
949 | int w = gdk_pixbuf_get_width (pb); |
|
|
950 | int h = gdk_pixbuf_get_height (pb); |
|
|
951 | int x, y, i; |
|
|
952 | guchar *dst; |
|
|
953 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
954 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
955 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
956 | |
|
|
957 | for (y = 0; y < h; y++) |
|
|
958 | for (x = 0; x < w; x++) |
|
|
959 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
960 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
|
|
961 | } |
|
|
962 | |
|
|
963 | ############################################################################# |
|
|
964 | |
|
|
965 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
|
|
966 | |
298 | SV * |
967 | SV * |
299 | pb_to_p7 (GdkPixbuf *pb) |
968 | pb_to_hv84 (GdkPixbuf *pb) |
300 | CODE: |
969 | CODE: |
301 | { |
970 | { |
302 | int w = gdk_pixbuf_get_width (pb); |
971 | int w = gdk_pixbuf_get_width (pb); |
303 | int h = gdk_pixbuf_get_height (pb); |
972 | int h = gdk_pixbuf_get_height (pb); |
304 | int x, y; |
973 | int x, y; |
305 | guchar *dst; |
974 | guchar *dst; |
306 | int bpp = gdk_pixbuf_get_n_channels (pb); |
975 | int bpp = gdk_pixbuf_get_n_channels (pb); |
307 | guchar *src = gdk_pixbuf_get_pixels (pb); |
976 | guchar *src = gdk_pixbuf_get_pixels (pb); |
308 | int sstr = gdk_pixbuf_get_rowstride (pb); |
977 | int sstr = gdk_pixbuf_get_rowstride (pb); |
309 | int Er[IW], Eg[IW], Eb[IW]; |
|
|
310 | int seed = 77; |
|
|
311 | |
|
|
312 | RETVAL = newSV (w * h); |
|
|
313 | SvPOK_only (RETVAL); |
|
|
314 | SvCUR_set (RETVAL, w * h); |
|
|
315 | |
|
|
316 | dst = SvPVX (RETVAL); |
|
|
317 | |
|
|
318 | memset (Er, 0, sizeof (int) * IW); |
|
|
319 | memset (Eg, 0, sizeof (int) * IW); |
|
|
320 | memset (Eb, 0, sizeof (int) * IW); |
|
|
321 | |
|
|
322 | /* some primitive error distribution + random dithering */ |
|
|
323 | |
|
|
324 | for (y = 0; y < h; y++) |
|
|
325 | { |
|
|
326 | int er = 0, eg = 0, eb = 0; |
|
|
327 | |
|
|
328 | for (x = 0; x < w; x++) |
|
|
329 | { |
|
|
330 | int r, g, b; |
|
|
331 | guchar *p = src + x * bpp + y * sstr; |
|
|
332 | |
|
|
333 | r = ((p[0] + er + Er[x]) * 7 + (RAND & 127) + 64) / 255; |
|
|
334 | g = ((p[1] + eg + Eg[x]) * 7 + (RAND & 127) + 64) / 255; |
|
|
335 | b = ((p[2] + eb + Eb[x]) * 3 + (RAND & 127) + 64) / 255; |
|
|
336 | |
|
|
337 | r = r > 7 ? 7 : r < 0 ? 0 : r; |
|
|
338 | g = g > 7 ? 7 : g < 0 ? 0 : g; |
|
|
339 | b = b > 3 ? 3 : b < 0 ? 0 : b; |
|
|
340 | |
|
|
341 | er += p[0] - (r * 255 + 4) / 7; |
|
|
342 | eg += p[1] - (g * 255 + 4) / 7; |
|
|
343 | eb += p[2] - (b * 255 + 2) / 3; |
|
|
344 | |
|
|
345 | Er[x] = er >> 1; er -= (er + 1) >> 1; |
|
|
346 | Eg[x] = eg >> 1; eg -= (eg + 1) >> 1; |
|
|
347 | Eb[x] = eb >> 1; eb -= (eb + 1) >> 1; |
|
|
348 | |
|
|
349 | *dst++ = r << 5 | g << 2 | b; |
|
|
350 | } |
|
|
351 | } |
|
|
352 | } |
|
|
353 | OUTPUT: |
|
|
354 | RETVAL |
|
|
355 | |
|
|
356 | SV * |
|
|
357 | make_histogram (SV *ar) |
|
|
358 | CODE: |
|
|
359 | { |
|
|
360 | int i; |
|
|
361 | AV *av, *result; |
|
|
362 | |
|
|
363 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
|
|
364 | croak ("Not an array ref as first argument to make_histogram"); |
|
|
365 | |
|
|
366 | av = (AV *) SvRV (ar); |
|
|
367 | result = newAV (); |
|
|
368 | |
|
|
369 | for (i = 0; i <= av_len (av); ++i) |
|
|
370 | { |
|
|
371 | const int HISTSIZE = 64; |
|
|
372 | |
|
|
373 | int j; |
|
|
374 | SV *sv = *av_fetch (av, i, 1); |
|
|
375 | STRLEN len; |
|
|
376 | char *buf = SvPVbyte (sv, len); |
|
|
377 | |
|
|
378 | int tmphist[HISTSIZE]; |
|
|
379 | float *hist; |
|
|
380 | |
|
|
381 | SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); |
|
|
382 | SvPOK_on (histsv); |
|
|
383 | SvCUR_set (histsv, HISTSIZE * sizeof (float)); |
|
|
384 | hist = (float *)SvPVX (histsv); |
|
|
385 | |
|
|
386 | Zero (tmphist, sizeof (tmphist), char); |
|
|
387 | |
|
|
388 | for (j = len; j--; ) |
|
|
389 | { |
|
|
390 | unsigned int idx |
|
|
391 | = ((*buf & 0xc0) >> 2) |
|
|
392 | | ((*buf & 0x18) >> 1) |
|
|
393 | | (*buf & 0x03); |
|
|
394 | |
|
|
395 | ++tmphist[idx]; |
|
|
396 | ++buf; |
|
|
397 | } |
|
|
398 | |
|
|
399 | for (j = 0; j < HISTSIZE; ++j) |
|
|
400 | hist[j] = (float)tmphist[j] / (len + 1e-30); |
|
|
401 | |
|
|
402 | av_push (result, histsv); |
|
|
403 | } |
|
|
404 | |
|
|
405 | RETVAL = newRV_noinc ((SV *)result); |
|
|
406 | } |
|
|
407 | OUTPUT: |
|
|
408 | RETVAL |
|
|
409 | |
|
|
410 | ############################################################################# |
|
|
411 | |
|
|
412 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
|
|
413 | |
|
|
414 | void |
|
|
415 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
|
|
416 | CODE: |
|
|
417 | { |
|
|
418 | int w = gdk_pixbuf_get_width (pb); |
|
|
419 | int h = gdk_pixbuf_get_height (pb); |
|
|
420 | int x, y, i; |
|
|
421 | guchar *dst; |
|
|
422 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
423 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
424 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
425 | |
|
|
426 | a85_init (); |
|
|
427 | |
|
|
428 | for (y = 0; y < h; y++) |
|
|
429 | for (x = 0; x < w; x++) |
|
|
430 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
431 | a85_push (fp, src [x * bpp + y * sstr + i]); |
|
|
432 | |
|
|
433 | a85_finish (fp); |
|
|
434 | } |
|
|
435 | |
|
|
436 | void |
|
|
437 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
|
|
438 | CODE: |
|
|
439 | { |
|
|
440 | int w = gdk_pixbuf_get_width (pb); |
|
|
441 | int h = gdk_pixbuf_get_height (pb); |
|
|
442 | int x, y, i; |
|
|
443 | guchar *dst; |
|
|
444 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
445 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
446 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
447 | |
|
|
448 | for (y = 0; y < h; y++) |
|
|
449 | for (x = 0; x < w; x++) |
|
|
450 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
451 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
|
|
452 | } |
|
|
453 | |
|
|
454 | ############################################################################# |
|
|
455 | |
|
|
456 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
|
|
457 | |
|
|
458 | SV * |
|
|
459 | pb_to_hv84 (GdkPixbuf *pb) |
|
|
460 | CODE: |
|
|
461 | { |
|
|
462 | int w = gdk_pixbuf_get_width (pb); |
|
|
463 | int h = gdk_pixbuf_get_height (pb); |
|
|
464 | int x, y; |
|
|
465 | guchar *dst; |
|
|
466 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
467 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
468 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
469 | |
978 | |
470 | RETVAL = newSV (6 * 8 * 12 / 8); |
979 | RETVAL = newSV (6 * 8 * 12 / 8); |
471 | SvPOK_only (RETVAL); |
980 | SvPOK_only (RETVAL); |
472 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
981 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
473 | |
982 | |
474 | dst = SvPVX (RETVAL); |
983 | dst = (guchar *)SvPVX (RETVAL); |
475 | |
984 | |
476 | /* some primitive error distribution + random dithering */ |
985 | /* some primitive error distribution + random dithering */ |
477 | |
986 | |
478 | for (y = 0; y < h; y++) |
987 | for (y = 0; y < h; y++) |
479 | { |
988 | { |
… | |
… | |
537 | } |
1046 | } |
538 | } |
1047 | } |
539 | OUTPUT: |
1048 | OUTPUT: |
540 | RETVAL |
1049 | RETVAL |
541 | |
1050 | |
|
|
1051 | ############################################################################# |
542 | |
1052 | |
|
|
1053 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
543 | |
1054 | |
|
|
1055 | SV * |
|
|
1056 | extract_features (SV *ar) |
|
|
1057 | CODE: |
|
|
1058 | { |
|
|
1059 | int i; |
|
|
1060 | AV *av, *result; |
|
|
1061 | |
|
|
1062 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
|
|
1063 | croak ("Not an array ref as first argument to extract_features"); |
|
|
1064 | |
|
|
1065 | av = (AV *) SvRV (ar); |
|
|
1066 | result = newAV (); |
|
|
1067 | |
|
|
1068 | for (i = 0; i <= av_len (av); ++i) |
|
|
1069 | { |
|
|
1070 | SV *sv = *av_fetch (av, i, 1); |
|
|
1071 | SV *histsv = newSV (9 * sizeof (float) + 1); |
|
|
1072 | |
|
|
1073 | SvPOK_on (histsv); |
|
|
1074 | SvCUR_set (histsv, 9 * sizeof (float)); |
|
|
1075 | float *hist = (float *)SvPVX (histsv); |
|
|
1076 | |
|
|
1077 | struct feature f_h, f_s, f_v; |
|
|
1078 | feature_init (&f_h); |
|
|
1079 | feature_init (&f_s); |
|
|
1080 | feature_init (&f_v); |
|
|
1081 | |
|
|
1082 | { |
|
|
1083 | STRLEN len; |
|
|
1084 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
|
|
1085 | while (len >= 3) |
|
|
1086 | { |
|
|
1087 | unsigned int r, g, b, h, s, v; |
|
|
1088 | r = *buf++; g = *buf++; b = *buf++; |
|
|
1089 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
1090 | |
|
|
1091 | feature_update_pass_1 (&f_h, h); |
|
|
1092 | feature_update_pass_1 (&f_s, s); |
|
|
1093 | feature_update_pass_1 (&f_v, v); |
|
|
1094 | |
|
|
1095 | len -= 3; |
|
|
1096 | } |
|
|
1097 | |
|
|
1098 | feature_finish_pass_1 (&f_h); |
|
|
1099 | feature_finish_pass_1 (&f_s); |
|
|
1100 | feature_finish_pass_1 (&f_v); |
|
|
1101 | } |
|
|
1102 | |
|
|
1103 | { |
|
|
1104 | STRLEN len; |
|
|
1105 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
|
|
1106 | while (len >= 3) |
|
|
1107 | { |
|
|
1108 | unsigned int r, g, b, h, s, v; |
|
|
1109 | r = *buf++; g = *buf++; b = *buf++; |
|
|
1110 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
1111 | |
|
|
1112 | feature_update_pass_2 (&f_h, h); |
|
|
1113 | feature_update_pass_2 (&f_s, s); |
|
|
1114 | feature_update_pass_2 (&f_v, v); |
|
|
1115 | |
|
|
1116 | len -= 3; |
|
|
1117 | } |
|
|
1118 | |
|
|
1119 | feature_finish_pass_2 (&f_h); |
|
|
1120 | feature_finish_pass_2 (&f_s); |
|
|
1121 | feature_finish_pass_2 (&f_v); |
|
|
1122 | } |
|
|
1123 | |
|
|
1124 | hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.; |
|
|
1125 | hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ; |
|
|
1126 | hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5; |
|
|
1127 | |
|
|
1128 | av_push (result, histsv); |
|
|
1129 | } |
|
|
1130 | |
|
|
1131 | RETVAL = newRV_noinc ((SV *)result); |
|
|
1132 | } |
|
|
1133 | OUTPUT: |
|
|
1134 | RETVAL |
|
|
1135 | |