[ViewVC] Diff of: cvs/CV/CV.xs

Comparing CV/CV.xs (file contents):
Revision 1.31 by root, Wed Feb 15 08:08:37 2006 UTC vs.
Revision 1.42 by root, Sun Sep 14 12:47:59 2008 UTC

…		…
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>
		7	#include <math.h>
7		8
8	#include <magic.h>	9	#include <magic.h>
9		10
10	#include <jpeglib.h>	11	#include <jpeglib.h>
11	#include <glib.h>	12	#include <glib.h>
…		…
13	#include <gdk-pixbuf/gdk-pixbuf.h>	14	#include <gdk-pixbuf/gdk-pixbuf.h>
14		15
15	#include <gperl.h>	16	#include <gperl.h>
16	#include <gtk2perl.h>	17	#include <gtk2perl.h>
17		18
18	#define IW 80 /* MUST match Schnauer.pm! */	19	#define IW 80 /* MUST match Schnauzer.pm! */
19	#define IH 60 /* MUST match Schnauer.pm! */	20	#define IH 60 /* MUST match Schnauzer.pm! */
20		21
21	#define RAND (seed = (seed + 7141) * 54773 % 134456)	22	#define RAND (seed = (seed + 7141) * 54773 % 134456)
22		23
23	#define LINELENGTH 240	24	#define LINELENGTH 240
24		25
25	#define ELLIPSIS "\xe2\x80\xa6"	26	#define ELLIPSIS "\xe2\x80\xa6"
		27
		28	typedef char *octet_string;
26		29
27	struct jpg_err_mgr	30	struct jpg_err_mgr
28	{	31	{
29	struct jpeg_error_mgr err;	32	struct jpeg_error_mgr err;
30	jmp_buf setjmp_buffer;	33	jmp_buf setjmp_buffer;
…		…
67		70
68	*h &= 255;	71	*h &= 255;
69	}	72	}
70	}	73	}
71		74
		75	struct feature {
		76	float v1, v2, v3; // mean, square, cube
		77	int n;
		78	};
		79
		80	static void
		81	feature_init (struct feature *f)
		82	{
		83	f->v1 = 0.;
		84	f->v2 = 0.;
		85	f->v3 = 0.;
		86	f->n = 0;
		87	}
		88
		89	// didn't find an algorithm to neatly do mean, variance and skew in one pass.
		90	// elmex ist schuld.
		91	static void
		92	feature_update_pass_1 (struct feature *f, unsigned int v)
		93	{
		94	f->v1 += v;
		95	f->n += 1;
		96	}
		97
		98	static void
		99	feature_finish_pass_1 (struct feature *f)
		100	{
		101	if (f->n < 1)
		102	return;
		103
		104	f->v1 /= f->n;
		105	}
		106
		107	static void
		108	feature_update_pass_2 (struct feature *f, unsigned int v)
		109	{
		110	float d = v - f->v1;
		111
		112	f->v2 += d * d;
		113	f->v3 += d * d * d;
		114	}
		115
		116	static void
		117	feature_finish_pass_2 (struct feature *f)
		118	{
		119	if (f->n < 1)
		120	return;
		121
		122	f->v2 /= f->n;
		123	f->v3 /= f->n;
		124
		125	f->v1 /= 255.;
		126	f->v2 /= 255. * 255.; f->v2 = sqrtf (f->v2);
		127	f->v3 /= 255. * 255. * 255.; f->v3 = powf (fabsf (f->v3), 1./3.);
		128	}
		129
72	static guint32 a85_val;	130	static guint32 a85_val;
73	static guint a85_cnt;	131	static guint a85_cnt;
74	static guchar a85_buf[LINELENGTH], *a85_ptr;	132	static guchar a85_buf[LINELENGTH], *a85_ptr;
75		133
76	static void	134	static void
…		…
146		204
147	OUTPUT:	205	OUTPUT:
148	RETVAL	206	RETVAL
149		207
150	const char *	208	const char *
151	magic (const char *path)	209	magic (octet_string path)
152	CODE:	210	CODE:
153	{	211	{
154	static magic_t cookie;	212	static magic_t cookie;
155		213
156	if (!cookie)	214	if (!cookie)
157	{	215	{
158	cookie = magic_open (MAGIC_MIME);	216	cookie = magic_open (MAGIC_NONE);
159		217
160	if (cookie)	218	if (cookie)
161	magic_load (cookie, 0);	219	magic_load (cookie, 0);
162	else	220	else
163	XSRETURN_UNDEF;	221	XSRETURN_UNDEF;
…		…
166	RETVAL = magic_file (cookie, path);	224	RETVAL = magic_file (cookie, path);
167	}	225	}
168	OUTPUT:	226	OUTPUT:
169	RETVAL	227	RETVAL
170		228
		229	const char *
		230	magic_mime (octet_string path)
		231	CODE:
		232	{
		233	static magic_t cookie;
		234
		235	if (!cookie)
		236	{
		237	cookie = magic_open (MAGIC_MIME);
		238
		239	if (cookie)
		240	magic_load (cookie, 0);
		241	else
		242	XSRETURN_UNDEF;
		243	}
		244
		245	RETVAL = magic_file (cookie, path);
		246	}
		247	OUTPUT:
		248	RETVAL
		249
171	# missing in Gtk2 perl module	250	# missing/broken in Gtk2 perl module
		251
		252	void
		253	gdk_window_clear_hints (GdkWindow *window)
		254	CODE:
		255	gdk_window_set_geometry_hints (window, 0, 0);
172		256
173	gboolean	257	gboolean
174	gdk_net_wm_supports (GdkAtom property)	258	gdk_net_wm_supports (GdkAtom property)
175	CODE:	259	CODE:
176	#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)	260	#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)
…		…
310	jpeg_destroy_decompress (&cinfo);	394	jpeg_destroy_decompress (&cinfo);
311	}	395	}
312	OUTPUT:	396	OUTPUT:
313	RETVAL	397	RETVAL
314		398
		399	void
		400	compare (GdkPixbuf a, GdkPixbuf b)
		401	PPCODE:
		402	{
		403	int w = gdk_pixbuf_get_width (a);
		404	int h = gdk_pixbuf_get_height (a);
		405	int sa = gdk_pixbuf_get_rowstride (a);
		406	int sb = gdk_pixbuf_get_rowstride (b);
		407
		408	guchar *pa = gdk_pixbuf_get_pixels (a);
		409	guchar *pb = gdk_pixbuf_get_pixels (b);
		410
		411	int x, y;
		412
		413	assert (w == gdk_pixbuf_get_width (b));
		414	assert (h == gdk_pixbuf_get_height (b));
		415
		416	assert (gdk_pixbuf_get_n_channels (a) == 3);
		417	assert (gdk_pixbuf_get_n_channels (b) == 3);
		418
		419	double diff = 0.;
		420	int peak = 0;
		421
		422	if (w && h)
		423	for (y = 0; y < h; y++)
		424	{
		425	guchar pa_ = pa + y sa;
		426	guchar pb_ = pb + y sb;
		427
		428	for (x = 0; x < w; x++)
		429	{
		430	int d;
		431
		432	d = ((int)pa_++) - ((int)pb_++); diff += d*d; peak = MAX (peak, abs (d));
		433	d = ((int)pa_++) - ((int)pb_++); diff += d*d; peak = MAX (peak, abs (d));
		434	d = ((int)pa_++) - ((int)pb_++); diff += d*d; peak = MAX (peak, abs (d));
		435	}
		436	}
		437
		438	EXTEND (SP, 2);
		439	PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.)))));
		440	PUSHs (sv_2mortal (newSVnv (peak / 255.)));
		441	}
		442
315	#############################################################################	443	#############################################################################
316		444
317	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer	445	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer
		446
		447	# currently only works for filenames (octet strings)
318		448
319	SV *	449	SV *
320	foldcase (SV *pathsv)	450	foldcase (SV *pathsv)
321	PROTOTYPE: $	451	PROTOTYPE: $
322	CODE:	452	CODE:
323	{	453	{
324	STRLEN plen;	454	STRLEN plen;
325	U8 path = (U8 )SvPVutf8 (pathsv, plen);	455	U8 path = (U8 )SvPV (pathsv, plen);
326	U8 *pend = path + plen;	456	U8 *pend = path + plen;
327	U8 dst [plen * 6 * 3], *dstp = dst;	457	U8 dst [plen * 6 * 3], *dstp = dst;
328		458
329	while (path < pend)	459	while (path < pend)
330	{	460	{
331	U8 ch = *path;	461	U8 ch = *path;
332		462
333	if (ch >= 'a' && ch <= 'z')	463	if (ch >= 'a' && ch <= 'z')
334	dstp++ = path++;	464	dstp++ = path++;
		465	else if (ch >= 'A' && ch <= 'Z')
		466	dstp++ = path++ + ('a' - 'A');
335	else if (ch >= '0' && ch <= '9')	467	else if (ch >= '0' && ch <= '9')
336	{	468	{
337	STRLEN el, nl = 0;	469	STRLEN el, nl = 0;
338	while (path >= '0' && path <= '9' && path < pend)	470	while (path >= '0' && path <= '9' && path < pend)
339	path++, nl++;	471	path++, nl++;
…		…
342	*dstp++ = '0';	474	*dstp++ = '0';
343		475
344	memcpy (dstp, path - nl, nl);	476	memcpy (dstp, path - nl, nl);
345	dstp += nl;	477	dstp += nl;
346	}	478	}
		479	else
		480	dstp++ = path++;
		481	#if 0
347	else	482	else
348	{	483	{
349	STRLEN cl;	484	STRLEN cl;
350	to_utf8_fold (path, dstp, &cl);	485	to_utf8_fold (path, dstp, &cl);
351	dstp += cl;	486	dstp += cl;
352	path += is_utf8_char (path);	487	path += is_utf8_char (path);
353	}	488	}
		489	#endif
354	}	490	}
355		491
356	RETVAL = newSVpvn ((const char *)dst, dstp - dst);	492	RETVAL = newSVpvn ((const char *)dst, dstp - dst);
357	}	493	}
358	OUTPUT:	494	OUTPUT:
…		…
520	#############################################################################	656	#############################################################################
521		657
522	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster	658	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster
523		659
524	SV *	660	SV *
525	make_histograms (SV *ar)	661	extract_features (SV *ar)
526	CODE:	662	CODE:
527	{	663	{
528	int i;	664	int i;
529	AV av, result;	665	AV av, result;
530		666
531	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)	667	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)
532	croak ("Not an array ref as first argument to make_histogram");	668	croak ("Not an array ref as first argument to extract_features");
533		669
534	av = (AV *) SvRV (ar);	670	av = (AV *) SvRV (ar);
535	result = newAV ();	671	result = newAV ();
536		672
537	for (i = 0; i <= av_len (av); ++i)	673	for (i = 0; i <= av_len (av); ++i)
538	{	674	{
539	const int HISTSIZE = 64;
540
541	int j;
542	SV sv = av_fetch (av, i, 1);	675	SV sv = av_fetch (av, i, 1);
543	STRLEN len;
544	char *buf = SvPVbyte (sv, len);
545
546	int tmphist[HISTSIZE];
547	float *hist;
548
549	SV histsv = newSV (HISTSIZE sizeof (float) + 1);	676	SV histsv = newSV (9 sizeof (float) + 1);
		677
550	SvPOK_on (histsv);	678	SvPOK_on (histsv);
551	SvCUR_set (histsv, HISTSIZE * sizeof (float));	679	SvCUR_set (histsv, 9 * sizeof (float));
552	hist = (float *)SvPVX (histsv);	680	float hist = (float )SvPVX (histsv);
553		681
554	Zero (tmphist, sizeof (tmphist), char);	682	struct feature f_h, f_s, f_v;
		683	feature_init (&f_h);
		684	feature_init (&f_s);
		685	feature_init (&f_v);
555		686
556	for (j = len; j--; )
557	{
558	unsigned int idx
559	= ((*buf & 0xc0) >> 2)
560	\| ((*buf & 0x18) >> 1)
561	\| (*buf & 0x03);
562
563	++tmphist[idx];
564	++buf;
565	}
566		687	{
567	for (j = 0; j < HISTSIZE; ++j)	688	STRLEN len;
568	hist[j] = (float)tmphist[j] / (len + 1e-30);	689	unsigned char buf = (unsigned char )SvPVbyte (sv, len);
		690	while (len >= 3)
		691	{
		692	unsigned int r, g, b, h, s, v;
		693	r = buf++; g = buf++; b = *buf++;
		694	rgb_to_hsv (r, g, b, &h, &s, &v);
		695
		696	feature_update_pass_1 (&f_h, h);
		697	feature_update_pass_1 (&f_s, s);
		698	feature_update_pass_1 (&f_v, v);
		699
		700	len -= 3;
		701	}
		702
		703	feature_finish_pass_1 (&f_h);
		704	feature_finish_pass_1 (&f_s);
		705	feature_finish_pass_1 (&f_v);
		706	}
		707
		708	{
		709	STRLEN len;
		710	unsigned char buf = (unsigned char )SvPVbyte (sv, len);
		711	while (len >= 3)
		712	{
		713	unsigned int r, g, b, h, s, v;
		714	r = buf++; g = buf++; b = *buf++;
		715	rgb_to_hsv (r, g, b, &h, &s, &v);
		716
		717	feature_update_pass_2 (&f_h, h);
		718	feature_update_pass_2 (&f_s, s);
		719	feature_update_pass_2 (&f_v, v);
		720
		721	len -= 3;
		722	}
		723
		724	feature_finish_pass_2 (&f_h);
		725	feature_finish_pass_2 (&f_s);
		726	feature_finish_pass_2 (&f_v);
		727	}
		728
		729	hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.;
		730	hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ;
		731	hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5;
569		732
570	av_push (result, histsv);	733	av_push (result, histsv);
571	}	734	}
572		735
573	RETVAL = newRV_noinc ((SV *)result);	736	RETVAL = newRV_noinc ((SV *)result);
574	}	737	}
575	OUTPUT:	738	OUTPUT:
576	RETVAL	739	RETVAL
577		740
578

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Comparing CV/CV.xs (file contents): Revision 1.31 by root, Wed Feb 15 08:08:37 2006 UTC vs. Revision 1.42 by root, Sun Sep 14 12:47:59 2008 UTC

Diff Legend

Comparing CV/CV.xs (file contents):
Revision 1.31 by root, Wed Feb 15 08:08:37 2006 UTC vs.
Revision 1.42 by root, Sun Sep 14 12:47:59 2008 UTC