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

Comparing CV/CV.xs (file contents):
Revision 1.32 by root, Wed Feb 15 08:36:55 2006 UTC vs.
Revision 1.43 by root, Sun May 3 08:16:47 2009 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
		19	#include <assert.h>
		20
18	#define IW 80 /* MUST match Schnauer.pm! */	21	#define IW 80 /* MUST match Schnauzer.pm! */
19	#define IH 60 /* MUST match Schnauer.pm! */	22	#define IH 60 /* MUST match Schnauzer.pm! */
20		23
21	#define RAND (seed = (seed + 7141) * 54773 % 134456)	24	#define RAND (seed = (seed + 7141) * 54773 % 134456)
22		25
23	#define LINELENGTH 240	26	#define LINELENGTH 240
24		27
25	#define ELLIPSIS "\xe2\x80\xa6"	28	#define ELLIPSIS "\xe2\x80\xa6"
		29
		30	typedef char *octet_string;
26		31
27	struct jpg_err_mgr	32	struct jpg_err_mgr
28	{	33	{
29	struct jpeg_error_mgr err;	34	struct jpeg_error_mgr err;
30	jmp_buf setjmp_buffer;	35	jmp_buf setjmp_buffer;
…		…
67		72
68	*h &= 255;	73	*h &= 255;
69	}	74	}
70	}	75	}
71		76
		77	struct feature {
		78	float v1, v2, v3; // mean, square, cube
		79	int n;
		80	};
		81
		82	static void
		83	feature_init (struct feature *f)
		84	{
		85	f->v1 = 0.;
		86	f->v2 = 0.;
		87	f->v3 = 0.;
		88	f->n = 0;
		89	}
		90
		91	// didn't find an algorithm to neatly do mean, variance and skew in one pass.
		92	// elmex ist schuld.
		93	static void
		94	feature_update_pass_1 (struct feature *f, unsigned int v)
		95	{
		96	f->v1 += v;
		97	f->n += 1;
		98	}
		99
		100	static void
		101	feature_finish_pass_1 (struct feature *f)
		102	{
		103	if (f->n < 1)
		104	return;
		105
		106	f->v1 /= f->n;
		107	}
		108
		109	static void
		110	feature_update_pass_2 (struct feature *f, unsigned int v)
		111	{
		112	float d = v - f->v1;
		113
		114	f->v2 += d * d;
		115	f->v3 += d * d * d;
		116	}
		117
		118	static void
		119	feature_finish_pass_2 (struct feature *f)
		120	{
		121	if (f->n < 1)
		122	return;
		123
		124	f->v2 /= f->n;
		125	f->v3 /= f->n;
		126
		127	f->v1 /= 255.;
		128	f->v2 /= 255. * 255.; f->v2 = sqrtf (f->v2);
		129	f->v3 /= 255. * 255. * 255.; f->v3 = powf (fabsf (f->v3), 1./3.);
		130	}
		131
72	static guint32 a85_val;	132	static guint32 a85_val;
73	static guint a85_cnt;	133	static guint a85_cnt;
74	static guchar a85_buf[LINELENGTH], *a85_ptr;	134	static guchar a85_buf[LINELENGTH], *a85_ptr;
75		135
76	static void	136	static void
…		…
146		206
147	OUTPUT:	207	OUTPUT:
148	RETVAL	208	RETVAL
149		209
150	const char *	210	const char *
151	magic (const char *path)	211	magic (octet_string path)
152	CODE:	212	CODE:
153	{	213	{
154	static magic_t cookie;	214	static magic_t cookie;
155		215
156	if (!cookie)	216	if (!cookie)
…		…
167	}	227	}
168	OUTPUT:	228	OUTPUT:
169	RETVAL	229	RETVAL
170		230
171	const char *	231	const char *
172	magic_mime (const char *path)	232	magic_mime (octet_string path)
173	CODE:	233	CODE:
174	{	234	{
175	static magic_t cookie;	235	static magic_t cookie;
176		236
177	if (!cookie)	237	if (!cookie)
…		…
187	RETVAL = magic_file (cookie, path);	247	RETVAL = magic_file (cookie, path);
188	}	248	}
189	OUTPUT:	249	OUTPUT:
190	RETVAL	250	RETVAL
191		251
192	# missing in Gtk2 perl module	252	# missing/broken in Gtk2 perl module
		253
		254	void
		255	gdk_window_clear_hints (GdkWindow *window)
		256	CODE:
		257	gdk_window_set_geometry_hints (window, 0, 0);
193		258
194	gboolean	259	gboolean
195	gdk_net_wm_supports (GdkAtom property)	260	gdk_net_wm_supports (GdkAtom property)
196	CODE:	261	CODE:
197	#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)	262	#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)
…		…
331	jpeg_destroy_decompress (&cinfo);	396	jpeg_destroy_decompress (&cinfo);
332	}	397	}
333	OUTPUT:	398	OUTPUT:
334	RETVAL	399	RETVAL
335		400
		401	void
		402	compare (GdkPixbuf a, GdkPixbuf b)
		403	PPCODE:
		404	{
		405	int w = gdk_pixbuf_get_width (a);
		406	int h = gdk_pixbuf_get_height (a);
		407
		408	int sa = gdk_pixbuf_get_rowstride (a);
		409	int sb = gdk_pixbuf_get_rowstride (b);
		410
		411	guchar *pa = gdk_pixbuf_get_pixels (a);
		412	guchar *pb = gdk_pixbuf_get_pixels (b);
		413
		414	int x, y;
		415
		416	assert (w == gdk_pixbuf_get_width (b));
		417	assert (h == gdk_pixbuf_get_height (b));
		418
		419	assert (gdk_pixbuf_get_n_channels (a) == 3);
		420	assert (gdk_pixbuf_get_n_channels (b) == 3);
		421
		422	double diff = 0.;
		423	int peak = 0;
		424
		425	if (w && h)
		426	for (y = 0; y < h; y++)
		427	{
		428	guchar pa_ = pa + y sa;
		429	guchar pb_ = pb + y sb;
		430
		431	for (x = 0; x < w; x++)
		432	{
		433	int d;
		434
		435	d = ((int)pa_++) - ((int)pb_++); diff += d*d; peak = MAX (peak, abs (d));
		436	d = ((int)pa_++) - ((int)pb_++); diff += d*d; peak = MAX (peak, abs (d));
		437	d = ((int)pa_++) - ((int)pb_++); diff += d*d; peak = MAX (peak, abs (d));
		438	}
		439	}
		440
		441	EXTEND (SP, 2);
		442	PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.)))));
		443	PUSHs (sv_2mortal (newSVnv (peak / 255.)));
		444	}
		445
336	#############################################################################	446	#############################################################################
337		447
338	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer	448	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer
		449
		450	# currently only works for filenames (octet strings)
339		451
340	SV *	452	SV *
341	foldcase (SV *pathsv)	453	foldcase (SV *pathsv)
342	PROTOTYPE: $	454	PROTOTYPE: $
343	CODE:	455	CODE:
344	{	456	{
345	STRLEN plen;	457	STRLEN plen;
346	U8 path = (U8 )SvPVutf8 (pathsv, plen);	458	U8 path = (U8 )SvPV (pathsv, plen);
347	U8 *pend = path + plen;	459	U8 *pend = path + plen;
348	U8 dst [plen * 6 * 3], *dstp = dst;	460	U8 dst [plen * 6 * 3], *dstp = dst;
349		461
350	while (path < pend)	462	while (path < pend)
351	{	463	{
352	U8 ch = *path;	464	U8 ch = *path;
353		465
354	if (ch >= 'a' && ch <= 'z')	466	if (ch >= 'a' && ch <= 'z')
355	dstp++ = path++;	467	dstp++ = path++;
		468	else if (ch >= 'A' && ch <= 'Z')
		469	dstp++ = path++ + ('a' - 'A');
356	else if (ch >= '0' && ch <= '9')	470	else if (ch >= '0' && ch <= '9')
357	{	471	{
358	STRLEN el, nl = 0;	472	STRLEN el, nl = 0;
359	while (path >= '0' && path <= '9' && path < pend)	473	while (path >= '0' && path <= '9' && path < pend)
360	path++, nl++;	474	path++, nl++;
…		…
363	*dstp++ = '0';	477	*dstp++ = '0';
364		478
365	memcpy (dstp, path - nl, nl);	479	memcpy (dstp, path - nl, nl);
366	dstp += nl;	480	dstp += nl;
367	}	481	}
		482	else
		483	dstp++ = path++;
		484	#if 0
368	else	485	else
369	{	486	{
370	STRLEN cl;	487	STRLEN cl;
371	to_utf8_fold (path, dstp, &cl);	488	to_utf8_fold (path, dstp, &cl);
372	dstp += cl;	489	dstp += cl;
373	path += is_utf8_char (path);	490	path += is_utf8_char (path);
374	}	491	}
		492	#endif
375	}	493	}
376		494
377	RETVAL = newSVpvn ((const char *)dst, dstp - dst);	495	RETVAL = newSVpvn ((const char *)dst, dstp - dst);
378	}	496	}
379	OUTPUT:	497	OUTPUT:
…		…
541	#############################################################################	659	#############################################################################
542		660
543	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster	661	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster
544		662
545	SV *	663	SV *
546	make_histograms (SV *ar)	664	extract_features (SV *ar)
547	CODE:	665	CODE:
548	{	666	{
549	int i;	667	int i;
550	AV av, result;	668	AV av, result;
551		669
552	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)	670	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)
553	croak ("Not an array ref as first argument to make_histogram");	671	croak ("Not an array ref as first argument to extract_features");
554		672
555	av = (AV *) SvRV (ar);	673	av = (AV *) SvRV (ar);
556	result = newAV ();	674	result = newAV ();
557		675
558	for (i = 0; i <= av_len (av); ++i)	676	for (i = 0; i <= av_len (av); ++i)
559	{	677	{
560	const int HISTSIZE = 64;
561
562	int j;
563	SV sv = av_fetch (av, i, 1);	678	SV sv = av_fetch (av, i, 1);
564	STRLEN len;
565	char *buf = SvPVbyte (sv, len);
566
567	int tmphist[HISTSIZE];
568	float *hist;
569
570	SV histsv = newSV (HISTSIZE sizeof (float) + 1);	679	SV histsv = newSV (9 sizeof (float) + 1);
		680
571	SvPOK_on (histsv);	681	SvPOK_on (histsv);
572	SvCUR_set (histsv, HISTSIZE * sizeof (float));	682	SvCUR_set (histsv, 9 * sizeof (float));
573	hist = (float *)SvPVX (histsv);	683	float hist = (float )SvPVX (histsv);
574		684
575	Zero (tmphist, sizeof (tmphist), char);	685	struct feature f_h, f_s, f_v;
		686	feature_init (&f_h);
		687	feature_init (&f_s);
		688	feature_init (&f_v);
576		689
577	for (j = len; j--; )
578	{
579	unsigned int idx
580	= ((*buf & 0xc0) >> 2)
581	\| ((*buf & 0x18) >> 1)
582	\| (*buf & 0x03);
583
584	++tmphist[idx];
585	++buf;
586	}
587		690	{
588	for (j = 0; j < HISTSIZE; ++j)	691	STRLEN len;
589	hist[j] = (float)tmphist[j] / (len + 1e-30);	692	unsigned char buf = (unsigned char )SvPVbyte (sv, len);
		693	while (len >= 3)
		694	{
		695	unsigned int r, g, b, h, s, v;
		696	r = buf++; g = buf++; b = *buf++;
		697	rgb_to_hsv (r, g, b, &h, &s, &v);
		698
		699	feature_update_pass_1 (&f_h, h);
		700	feature_update_pass_1 (&f_s, s);
		701	feature_update_pass_1 (&f_v, v);
		702
		703	len -= 3;
		704	}
		705
		706	feature_finish_pass_1 (&f_h);
		707	feature_finish_pass_1 (&f_s);
		708	feature_finish_pass_1 (&f_v);
		709	}
		710
		711	{
		712	STRLEN len;
		713	unsigned char buf = (unsigned char )SvPVbyte (sv, len);
		714	while (len >= 3)
		715	{
		716	unsigned int r, g, b, h, s, v;
		717	r = buf++; g = buf++; b = *buf++;
		718	rgb_to_hsv (r, g, b, &h, &s, &v);
		719
		720	feature_update_pass_2 (&f_h, h);
		721	feature_update_pass_2 (&f_s, s);
		722	feature_update_pass_2 (&f_v, v);
		723
		724	len -= 3;
		725	}
		726
		727	feature_finish_pass_2 (&f_h);
		728	feature_finish_pass_2 (&f_s);
		729	feature_finish_pass_2 (&f_v);
		730	}
		731
		732	hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.;
		733	hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ;
		734	hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5;
590		735
591	av_push (result, histsv);	736	av_push (result, histsv);
592	}	737	}
593		738
594	RETVAL = newRV_noinc ((SV *)result);	739	RETVAL = newRV_noinc ((SV *)result);
595	}	740	}
596	OUTPUT:	741	OUTPUT:
597	RETVAL	742	RETVAL
598		743
599

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Comparing CV/CV.xs (file contents): Revision 1.32 by root, Wed Feb 15 08:36:55 2006 UTC vs. Revision 1.43 by root, Sun May 3 08:16:47 2009 UTC

Diff Legend

Comparing CV/CV.xs (file contents):
Revision 1.32 by root, Wed Feb 15 08:36:55 2006 UTC vs.
Revision 1.43 by root, Sun May 3 08:16:47 2009 UTC