[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 1.48 by root, Wed May 24 05:00:57 2017 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
		21	#include "perlmulticore.h"
		22
18	#define IW 80 /* MUST match Schnauer.pm! */	23	#define IW 80 /* MUST match Schnauzer.pm! */
19	#define IH 60 /* MUST match Schnauer.pm! */	24	#define IH 60 /* MUST match Schnauzer.pm! */
20		25
21	#define RAND (seed = (seed + 7141) * 54773 % 134456)	26	#define RAND (seed = (seed + 7141) * 54773 % 134456)
22		27
23	#define LINELENGTH 240	28	#define LINELENGTH 240
24		29
25	#define ELLIPSIS "\xe2\x80\xa6"	30	#define ELLIPSIS "\xe2\x80\xa6"
		31
		32	typedef char *octet_string;
26		33
27	struct jpg_err_mgr	34	struct jpg_err_mgr
28	{	35	{
29	struct jpeg_error_mgr err;	36	struct jpeg_error_mgr err;
30	jmp_buf setjmp_buffer;	37	jmp_buf setjmp_buffer;
31	};	38	};
32		39
33	static void	40	static void
34	cv_error_exit (j_common_ptr cinfo)	41	cv_error_exit (j_common_ptr cinfo)
35	{	42	{
		43	cinfo->err->output_message (cinfo);
36	longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99);	44	longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99);
37	}	45	}
38		46
39	static void	47	static void
40	cv_error_output (j_common_ptr cinfo)	48	cv_error_output (j_common_ptr cinfo)
41	{	49	{
		50	char msg[JMSG_LENGTH_MAX];
		51
		52	cinfo->err->format_message (cinfo, msg);
		53
		54	fprintf (stderr, "JPEG decoding error: %s\n", msg);
42	return;	55	return;
43	}	56	}
44		57
45	static void	58	static void
46	rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b,	59	rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b,
…		…
67		80
68	*h &= 255;	81	*h &= 255;
69	}	82	}
70	}	83	}
71		84
		85	struct feature {
		86	float v1, v2, v3; // mean, square, cube
		87	int n;
		88	};
		89
		90	static void
		91	feature_init (struct feature *f)
		92	{
		93	f->v1 = 0.;
		94	f->v2 = 0.;
		95	f->v3 = 0.;
		96	f->n = 0;
		97	}
		98
		99	// didn't find an algorithm to neatly do mean, variance and skew in one pass.
		100	// elmex ist schuld.
		101	static void
		102	feature_update_pass_1 (struct feature *f, unsigned int v)
		103	{
		104	f->v1 += v;
		105	f->n += 1;
		106	}
		107
		108	static void
		109	feature_finish_pass_1 (struct feature *f)
		110	{
		111	if (f->n < 1)
		112	return;
		113
		114	f->v1 /= f->n;
		115	}
		116
		117	static void
		118	feature_update_pass_2 (struct feature *f, unsigned int v)
		119	{
		120	float d = v - f->v1;
		121
		122	f->v2 += d * d;
		123	f->v3 += d * d * d;
		124	}
		125
		126	static void
		127	feature_finish_pass_2 (struct feature *f)
		128	{
		129	if (f->n < 1)
		130	return;
		131
		132	f->v2 /= f->n;
		133	f->v3 /= f->n;
		134
		135	f->v1 /= 255.;
		136	f->v2 /= 255. * 255.; f->v2 = sqrtf (f->v2);
		137	f->v3 /= 255. * 255. * 255.; f->v3 = powf (fabsf (f->v3), 1./3.);
		138	}
		139
72	static guint32 a85_val;	140	static guint32 a85_val;
73	static guint a85_cnt;	141	static guint a85_cnt;
74	static guchar a85_buf[LINELENGTH], *a85_ptr;	142	static guchar a85_buf[LINELENGTH], *a85_ptr;
75		143
76	static void	144	static void
…		…
146		214
147	OUTPUT:	215	OUTPUT:
148	RETVAL	216	RETVAL
149		217
150	const char *	218	const char *
151	magic (const char *path)	219	magic (octet_string path)
152	CODE:	220	CODE:
153	{	221	{
154	static magic_t cookie;	222	static magic_t cookie;
155		223
156	if (!cookie)	224	if (!cookie)
157	{	225	{
158	cookie = magic_open (MAGIC_MIME);	226	cookie = magic_open (MAGIC_SYMLINK);
159		227
160	if (cookie)	228	if (cookie)
161	magic_load (cookie, 0);	229	magic_load (cookie, 0);
162	else	230	else
163	XSRETURN_UNDEF;	231	XSRETURN_UNDEF;
…		…
166	RETVAL = magic_file (cookie, path);	234	RETVAL = magic_file (cookie, path);
167	}	235	}
168	OUTPUT:	236	OUTPUT:
169	RETVAL	237	RETVAL
170		238
		239	const char *
		240	magic_mime (octet_string path)
		241	CODE:
		242	{
		243	static magic_t cookie;
		244
		245	if (!cookie)
		246	{
		247	cookie = magic_open (MAGIC_MIME \| MAGIC_SYMLINK);
		248
		249	if (cookie)
		250	magic_load (cookie, 0);
		251	else
		252	XSRETURN_UNDEF;
		253	}
		254
		255	perlinterp_release ();
		256	RETVAL = magic_file (cookie, path);
		257	perlinterp_acquire ();
		258	}
		259	OUTPUT:
		260	RETVAL
		261
171	# missing in Gtk2 perl module	262	# missing/broken in Gtk2 perl module
		263
		264	void
		265	gdk_window_clear_hints (GdkWindow *window)
		266	CODE:
		267	gdk_window_set_geometry_hints (window, 0, 0);
172		268
173	gboolean	269	gboolean
174	gdk_net_wm_supports (GdkAtom property)	270	gdk_net_wm_supports (GdkAtom property)
175	CODE:	271	CODE:
176	#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)	272	#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)
…		…
182	RETVAL	278	RETVAL
183		279
184	GdkPixbuf_noinc *	280	GdkPixbuf_noinc *
185	dealpha_expose (GdkPixbuf *pb)	281	dealpha_expose (GdkPixbuf *pb)
186	CODE:	282	CODE:
		283	perlinterp_release ();
187	{	284	{
188	int w = gdk_pixbuf_get_width (pb);	285	int w = gdk_pixbuf_get_width (pb);
189	int h = gdk_pixbuf_get_height (pb);	286	int h = gdk_pixbuf_get_height (pb);
190	int bpp = gdk_pixbuf_get_n_channels (pb);	287	int bpp = gdk_pixbuf_get_n_channels (pb);
191	int x, y, i;	288	int x, y, i;
…		…
200	for (x = 0; x < w; x++)	297	for (x = 0; x < w; x++)
201	for (y = 0; y < h; y++)	298	for (y = 0; y < h; y++)
202	for (i = 0; i < 3; i++)	299	for (i = 0; i < 3; i++)
203	dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i];	300	dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i];
204	}	301	}
		302	perlinterp_acquire ();
205	OUTPUT:	303	OUTPUT:
206	RETVAL	304	RETVAL
207		305
208	GdkPixbuf_noinc *	306	GdkPixbuf_noinc *
209	rotate (GdkPixbuf *pb, int angle)	307	rotate (GdkPixbuf *pb, int angle)
210	CODE:	308	CODE:
		309	perlinterp_release ();
		310	if (angle < 0)
		311	angle += 360;
211	RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE	312	RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE
212	: angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE	313	: angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE
213	: angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN	314	: angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN
214	: angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE	315	: angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE
215	: angle);	316	: angle);
		317	perlinterp_acquire ();
216	OUTPUT:	318	OUTPUT:
217	RETVAL	319	RETVAL
218		320
219	GdkPixbuf_noinc *	321	GdkPixbuf_noinc *
220	load_jpeg (SV *path, int thumbnail=0)	322	load_jpeg (SV *path, int thumbnail = 0, int iw = 0, int ih = 0)
221	CODE:	323	CODE:
222	{	324	{
223	struct jpeg_decompress_struct cinfo;	325	struct jpeg_decompress_struct cinfo;
224	struct jpg_err_mgr jerr;	326	struct jpg_err_mgr jerr;
225	guchar *data;	327	guchar *data;
…		…
232	fp = fopen (SvPVbyte_nolen (path), "rb");	334	fp = fopen (SvPVbyte_nolen (path), "rb");
233		335
234	if (!fp)	336	if (!fp)
235	XSRETURN_UNDEF;	337	XSRETURN_UNDEF;
236		338
		339	perlinterp_release ();
		340
237	cinfo.err = jpeg_std_error (&jerr.err);	341	cinfo.err = jpeg_std_error (&jerr.err);
238		342
239	jerr.err.error_exit = cv_error_exit;	343	jerr.err.error_exit = cv_error_exit;
240	jerr.err.output_message = cv_error_output;	344	jerr.err.output_message = cv_error_output;
241		345
…		…
245	jpeg_destroy_decompress (&cinfo);	349	jpeg_destroy_decompress (&cinfo);
246		350
247	if (pb)	351	if (pb)
248	g_object_unref ((gpointer)pb);	352	g_object_unref ((gpointer)pb);
249		353
		354	perlinterp_acquire ();
250	XSRETURN_UNDEF;	355	XSRETURN_UNDEF;
251	}	356	}
252		357
253	jpeg_create_decompress (&cinfo);	358	jpeg_create_decompress (&cinfo);
254		359
…		…
270	{	375	{
271	cinfo.dct_method = JDCT_FASTEST;	376	cinfo.dct_method = JDCT_FASTEST;
272	cinfo.do_fancy_upsampling = FALSE;	377	cinfo.do_fancy_upsampling = FALSE;
273		378
274	while (cinfo.scale_denom < 8	379	while (cinfo.scale_denom < 8
275	&& cinfo.output_width >= IW*4	380	&& cinfo.output_width >= iw*4
276	&& cinfo.output_height >= IH*4)	381	&& cinfo.output_height >= ih*4)
277	{	382	{
278	cinfo.scale_denom <<= 1;	383	cinfo.scale_denom <<= 1;
279	jpeg_calc_output_dimensions (&cinfo);	384	jpeg_calc_output_dimensions (&cinfo);
280	}	385	}
281	}	386	}
282		387
		388	if (cinfo.output_components != 3)
		389	longjmp (jerr.setjmp_buffer, 3);
		390
		391	if (cinfo.jpeg_color_space == JCS_YCCK \|\| cinfo.jpeg_color_space == JCS_CMYK)
		392	{
		393	cinfo.out_color_space = JCS_CMYK;
		394	cinfo.output_components = 4;
		395	}
		396
283	pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height);	397	pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, cinfo.output_components == 4, 8, cinfo.output_width, cinfo.output_height);
284	if (!RETVAL)	398	if (!RETVAL)
285	longjmp (jerr.setjmp_buffer, 2);	399	longjmp (jerr.setjmp_buffer, 2);
286		400
287	data = gdk_pixbuf_get_pixels (RETVAL);	401	data = gdk_pixbuf_get_pixels (RETVAL);
288	rs = gdk_pixbuf_get_rowstride (RETVAL);	402	rs = gdk_pixbuf_get_rowstride (RETVAL);
289
290	if (cinfo.output_components != 3)
291	longjmp (jerr.setjmp_buffer, 3);
292		403
293	jpeg_start_decompress (&cinfo);	404	jpeg_start_decompress (&cinfo);
294		405
295	while (cinfo.output_scanline < cinfo.output_height)	406	while (cinfo.output_scanline < cinfo.output_height)
296	{	407	{
…		…
303	rp [3] = (guchar *)rp [2] + rs;	414	rp [3] = (guchar *)rp [2] + rs;
304		415
305	jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4);	416	jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4);
306	}	417	}
307		418
		419	if (cinfo.out_color_space == JCS_CMYK)
		420	{
		421	guchar end = data + cinfo.output_height rs;
		422
		423	while (data < end)
		424	{
		425	U32 c = data [0];
		426	U32 m = data [1];
		427	U32 y = data [2];
		428	U32 k = data [3];
		429
		430	data [0] = c * k / 255;
		431	data [1] = m * k / 255;
		432	data [2] = y * k / 255;
		433	data [3] = 255;
		434
		435	data += 4;
		436	}
		437	}
		438
308	jpeg_finish_decompress (&cinfo);	439	jpeg_finish_decompress (&cinfo);
309	fclose (fp);	440	fclose (fp);
310	jpeg_destroy_decompress (&cinfo);	441	jpeg_destroy_decompress (&cinfo);
		442	perlinterp_acquire ();
311	}	443	}
312	OUTPUT:	444	OUTPUT:
313	RETVAL	445	RETVAL
		446
		447	void
		448	compare (GdkPixbuf a, GdkPixbuf b)
		449	PPCODE:
		450	perlinterp_release ();
		451	{
		452	int w = gdk_pixbuf_get_width (a);
		453	int h = gdk_pixbuf_get_height (a);
		454
		455	int sa = gdk_pixbuf_get_rowstride (a);
		456	int sb = gdk_pixbuf_get_rowstride (b);
		457
		458	guchar *pa = gdk_pixbuf_get_pixels (a);
		459	guchar *pb = gdk_pixbuf_get_pixels (b);
		460
		461	int x, y;
		462
		463	assert (w == gdk_pixbuf_get_width (b));
		464	assert (h == gdk_pixbuf_get_height (b));
		465
		466	assert (gdk_pixbuf_get_n_channels (a) == 3);
		467	assert (gdk_pixbuf_get_n_channels (b) == 3);
		468
		469	double diff = 0.;
		470	int peak = 0;
		471
		472	if (w && h)
		473	for (y = 0; y < h; y++)
		474	{
		475	guchar pa_ = pa + y sa;
		476	guchar pb_ = pb + y sb;
		477
		478	for (x = 0; x < w; x++)
		479	{
		480	int d;
		481
		482	d = ((int)pa_++) - ((int)pb_++); diff += d*d; peak = MAX (peak, abs (d));
		483	d = ((int)pa_++) - ((int)pb_++); diff += d*d; peak = MAX (peak, abs (d));
		484	d = ((int)pa_++) - ((int)pb_++); diff += d*d; peak = MAX (peak, abs (d));
		485	}
		486	}
		487
		488	perlinterp_acquire ();
		489
		490	EXTEND (SP, 2);
		491	PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.)))));
		492	PUSHs (sv_2mortal (newSVnv (peak / 255.)));
		493	}
314		494
315	#############################################################################	495	#############################################################################
316		496
317	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer	497	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer
		498
		499	# currently only works for filenames (octet strings)
318		500
319	SV *	501	SV *
320	foldcase (SV *pathsv)	502	foldcase (SV *pathsv)
321	PROTOTYPE: $	503	PROTOTYPE: $
322	CODE:	504	CODE:
323	{	505	{
324	STRLEN plen;	506	STRLEN plen;
325	U8 path = (U8 )SvPVutf8 (pathsv, plen);	507	U8 path = (U8 )SvPV (pathsv, plen);
326	U8 *pend = path + plen;	508	U8 *pend = path + plen;
327	U8 dst [plen * 6 * 3], *dstp = dst;	509	U8 dst [plen * 6 * 3], *dstp = dst;
328		510
329	while (path < pend)	511	while (path < pend)
330	{	512	{
331	U8 ch = *path;	513	U8 ch = *path;
332		514
333	if (ch >= 'a' && ch <= 'z')	515	if (ch >= 'a' && ch <= 'z')
334	dstp++ = path++;	516	dstp++ = path++;
		517	else if (ch >= 'A' && ch <= 'Z')
		518	dstp++ = path++ + ('a' - 'A');
335	else if (ch >= '0' && ch <= '9')	519	else if (ch >= '0' && ch <= '9')
336	{	520	{
337	STRLEN el, nl = 0;	521	STRLEN el, nl = 0;
338	while (path >= '0' && path <= '9' && path < pend)	522	while (path >= '0' && path <= '9' && path < pend)
339	path++, nl++;	523	path++, nl++;
…		…
342	*dstp++ = '0';	526	*dstp++ = '0';
343		527
344	memcpy (dstp, path - nl, nl);	528	memcpy (dstp, path - nl, nl);
345	dstp += nl;	529	dstp += nl;
346	}	530	}
		531	else
		532	dstp++ = path++;
		533	#if 0
347	else	534	else
348	{	535	{
349	STRLEN cl;	536	STRLEN cl;
350	to_utf8_fold (path, dstp, &cl);	537	to_utf8_fold (path, dstp, &cl);
351	dstp += cl;	538	dstp += cl;
352	path += is_utf8_char (path);	539	path += is_utf8_char (path);
353	}	540	}
		541	#endif
354	}	542	}
355		543
356	RETVAL = newSVpvn ((const char *)dst, dstp - dst);	544	RETVAL = newSVpvn ((const char *)dst, dstp - dst);
357	}	545	}
358	OUTPUT:	546	OUTPUT:
…		…
520	#############################################################################	708	#############################################################################
521		709
522	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster	710	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster
523		711
524	SV *	712	SV *
525	make_histograms (SV *ar)	713	extract_features (SV *ar)
526	CODE:	714	CODE:
527	{	715	{
528	int i;	716	int i;
529	AV av, result;	717	AV av, result;
530		718
531	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)	719	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)
532	croak ("Not an array ref as first argument to make_histogram");	720	croak ("Not an array ref as first argument to extract_features");
533		721
534	av = (AV *) SvRV (ar);	722	av = (AV *) SvRV (ar);
535	result = newAV ();	723	result = newAV ();
536		724
537	for (i = 0; i <= av_len (av); ++i)	725	for (i = 0; i <= av_len (av); ++i)
538	{	726	{
539	const int HISTSIZE = 64;
540
541	int j;
542	SV sv = av_fetch (av, i, 1);	727	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);	728	SV histsv = newSV (9 sizeof (float) + 1);
		729
550	SvPOK_on (histsv);	730	SvPOK_on (histsv);
551	SvCUR_set (histsv, HISTSIZE * sizeof (float));	731	SvCUR_set (histsv, 9 * sizeof (float));
552	hist = (float *)SvPVX (histsv);	732	float hist = (float )SvPVX (histsv);
553		733
554	Zero (tmphist, sizeof (tmphist), char);	734	struct feature f_h, f_s, f_v;
		735	feature_init (&f_h);
		736	feature_init (&f_s);
		737	feature_init (&f_v);
555		738
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		739	{
567	for (j = 0; j < HISTSIZE; ++j)	740	STRLEN len;
568	hist[j] = (float)tmphist[j] / (len + 1e-30);	741	unsigned char buf = (unsigned char )SvPVbyte (sv, len);
		742	while (len >= 3)
		743	{
		744	unsigned int r, g, b, h, s, v;
		745	r = buf++; g = buf++; b = *buf++;
		746	rgb_to_hsv (r, g, b, &h, &s, &v);
		747
		748	feature_update_pass_1 (&f_h, h);
		749	feature_update_pass_1 (&f_s, s);
		750	feature_update_pass_1 (&f_v, v);
		751
		752	len -= 3;
		753	}
		754
		755	feature_finish_pass_1 (&f_h);
		756	feature_finish_pass_1 (&f_s);
		757	feature_finish_pass_1 (&f_v);
		758	}
		759
		760	{
		761	STRLEN len;
		762	unsigned char buf = (unsigned char )SvPVbyte (sv, len);
		763	while (len >= 3)
		764	{
		765	unsigned int r, g, b, h, s, v;
		766	r = buf++; g = buf++; b = *buf++;
		767	rgb_to_hsv (r, g, b, &h, &s, &v);
		768
		769	feature_update_pass_2 (&f_h, h);
		770	feature_update_pass_2 (&f_s, s);
		771	feature_update_pass_2 (&f_v, v);
		772
		773	len -= 3;
		774	}
		775
		776	feature_finish_pass_2 (&f_h);
		777	feature_finish_pass_2 (&f_s);
		778	feature_finish_pass_2 (&f_v);
		779	}
		780
		781	hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.;
		782	hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ;
		783	hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5;
569		784
570	av_push (result, histsv);	785	av_push (result, histsv);
571	}	786	}
572		787
573	RETVAL = newRV_noinc ((SV *)result);	788	RETVAL = newRV_noinc ((SV *)result);
574	}	789	}
575	OUTPUT:	790	OUTPUT:
576	RETVAL	791	RETVAL
577		792
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 1.48 by root, Wed May 24 05:00:57 2017 UTC

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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 1.48 by root, Wed May 24 05:00:57 2017 UTC