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

Comparing CV/CV.xs (file contents):
Revision 1.27 by root, Sun Aug 21 02:23:52 2005 UTC vs.
Revision 1.40 by root, Sat Nov 25 15:00:51 2006 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>
		8
		9	#include <magic.h>
7		10
8	#include <jpeglib.h>	11	#include <jpeglib.h>
9	#include <glib.h>	12	#include <glib.h>
10	#include <gtk/gtk.h>	13	#include <gtk/gtk.h>
11	#include <gdk-pixbuf/gdk-pixbuf.h>	14	#include <gdk-pixbuf/gdk-pixbuf.h>
12		15
13	#include <gperl.h>	16	#include <gperl.h>
14	#include <gtk2perl.h>	17	#include <gtk2perl.h>
15		18
16	#define IW 80 /* MUST match Schnauer.pm! */	19	#define IW 80 /* MUST match Schnauzer.pm! */
17	#define IH 60 /* MUST match Schnauer.pm! */	20	#define IH 60 /* MUST match Schnauzer.pm! */
18		21
19	#define RAND (seed = (seed + 7141) * 54773 % 134456)	22	#define RAND (seed = (seed + 7141) * 54773 % 134456)
20		23
21	#define LINELENGTH 240	24	#define LINELENGTH 240
22		25
…		…
65		68
66	*h &= 255;	69	*h &= 255;
67	}	70	}
68	}	71	}
69		72
		73	struct feature {
		74	float v1, v2, v3; // mean, square, cube
		75	int n;
		76	};
		77
		78	static void
		79	feature_init (struct feature *f)
		80	{
		81	f->v1 = 0.;
		82	f->v2 = 0.;
		83	f->v3 = 0.;
		84	f->n = 0;
		85	}
		86
		87	// didn't find an algorithm to neatly do mean, variance and skew in one pass.
		88	// elmex ist schuld.
		89	static void
		90	feature_update_pass_1 (struct feature *f, unsigned int v)
		91	{
		92	f->v1 += v;
		93	f->n += 1;
		94	}
		95
		96	static void
		97	feature_finish_pass_1 (struct feature *f)
		98	{
		99	if (f->n < 1)
		100	return;
		101
		102	f->v1 /= f->n;
		103	}
		104
		105	static void
		106	feature_update_pass_2 (struct feature *f, unsigned int v)
		107	{
		108	float d = v - f->v1;
		109
		110	f->v2 += d * d;
		111	f->v3 += d * d * d;
		112	}
		113
		114	static void
		115	feature_finish_pass_2 (struct feature *f)
		116	{
		117	if (f->n < 1)
		118	return;
		119
		120	f->v2 /= f->n;
		121	f->v3 /= f->n;
		122
		123	f->v1 /= 255.;
		124	f->v2 /= 255. * 255.; f->v2 = sqrtf (f->v2);
		125	f->v3 /= 255. * 255. * 255.; f->v3 = powf (fabsf (f->v3), 1./3.);
		126	}
		127
70	static guint32 a85_val;	128	static guint32 a85_val;
71	static guint a85_cnt;	129	static guint a85_cnt;
72	static guchar a85_buf[LINELENGTH], *a85_ptr;	130	static guchar a85_buf[LINELENGTH], *a85_ptr;
73		131
74	static void	132	static void
…		…
126		184
127	MODULE = Gtk2::CV PACKAGE = Gtk2::CV	185	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
128		186
129	PROTOTYPES: ENABLE	187	PROTOTYPES: ENABLE
130		188
		189	# missing function in perl. really :)
		190	int
		191	common_prefix_length (a, b)
		192	unsigned char a = (unsigned char )SvPVutf8_nolen ($arg);
		193	unsigned char b = (unsigned char )SvPVutf8_nolen ($arg);
		194	CODE:
		195	RETVAL = 0;
		196
		197	while (a == b && *a)
		198	{
		199	RETVAL += (*a & 0xc0) != 0x80;
		200	a++, b++;
		201	}
		202
		203	OUTPUT:
		204	RETVAL
		205
		206	const char *
		207	magic (const char *path)
		208	CODE:
		209	{
		210	static magic_t cookie;
		211
		212	if (!cookie)
		213	{
		214	cookie = magic_open (MAGIC_NONE);
		215
		216	if (cookie)
		217	magic_load (cookie, 0);
		218	else
		219	XSRETURN_UNDEF;
		220	}
		221
		222	RETVAL = magic_file (cookie, path);
		223	}
		224	OUTPUT:
		225	RETVAL
		226
		227	const char *
		228	magic_mime (const char *path)
		229	CODE:
		230	{
		231	static magic_t cookie;
		232
		233	if (!cookie)
		234	{
		235	cookie = magic_open (MAGIC_MIME);
		236
		237	if (cookie)
		238	magic_load (cookie, 0);
		239	else
		240	XSRETURN_UNDEF;
		241	}
		242
		243	RETVAL = magic_file (cookie, path);
		244	}
		245	OUTPUT:
		246	RETVAL
		247
131	# missing in Gtk2 perl module	248	# missing/broken in Gtk2 perl module
		249
		250	void
		251	gdk_window_clear_hints (GdkWindow *window)
		252	CODE:
		253	gdk_window_set_geometry_hints (window, 0, 0);
132		254
133	gboolean	255	gboolean
134	gdk_net_wm_supports (GdkAtom property)	256	gdk_net_wm_supports (GdkAtom property)
135	CODE:	257	CODE:
136	#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)	258	#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)
…		…
164	}	286	}
165	OUTPUT:	287	OUTPUT:
166	RETVAL	288	RETVAL
167		289
168	GdkPixbuf_noinc *	290	GdkPixbuf_noinc *
169	transpose (GdkPixbuf *pb)	291	rotate (GdkPixbuf *pb, int angle)
170	CODE:	292	CODE:
171	{	293	RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE
172	int w = gdk_pixbuf_get_width (pb);	294	: angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE
173	int h = gdk_pixbuf_get_height (pb);	295	: angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN
174	int bpp = gdk_pixbuf_get_n_channels (pb);	296	: angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE
175	int x, y, i;	297	: angle);
176	guchar src = gdk_pixbuf_get_pixels (pb), dst;
177	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;
178
179	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w);
180
181	dst = gdk_pixbuf_get_pixels (RETVAL);
182	dstr = gdk_pixbuf_get_rowstride (RETVAL);
183
184	for (y = 0; y < h; y++)
185	for (x = 0; x < w; x++)
186	for (i = 0; i < bpp; i++)
187	dst[y * bpp + x * dstr + i] = src[x * bpp + y * sstr + i];
188	}
189	OUTPUT:
190	RETVAL
191
192	GdkPixbuf_noinc *
193	flop (GdkPixbuf *pb)
194	CODE:
195	{
196	int w = gdk_pixbuf_get_width (pb);
197	int h = gdk_pixbuf_get_height (pb);
198	int bpp = gdk_pixbuf_get_n_channels (pb);
199	int x, y, i;
200	guchar src = gdk_pixbuf_get_pixels (pb), dst;
201	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;
202
203	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h);
204
205	dst = gdk_pixbuf_get_pixels (RETVAL);
206	dstr = gdk_pixbuf_get_rowstride (RETVAL);
207
208	for (y = 0; y < h; y++)
209	for (x = 0; x < w; x++)
210	for (i = 0; i < bpp; i++)
211	dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i];
212	}
213	OUTPUT:	298	OUTPUT:
214	RETVAL	299	RETVAL
215		300
216	GdkPixbuf_noinc *	301	GdkPixbuf_noinc *
217	load_jpeg (SV *path, int thumbnail=0)	302	load_jpeg (SV *path, int thumbnail=0)
…		…
221	struct jpg_err_mgr jerr;	306	struct jpg_err_mgr jerr;
222	guchar *data;	307	guchar *data;
223	int rs;	308	int rs;
224	FILE *fp;	309	FILE *fp;
225	volatile GdkPixbuf *pb = 0;	310	volatile GdkPixbuf *pb = 0;
226	gchar *filename;
227		311
228	RETVAL = 0;	312	RETVAL = 0;
229		313
230	filename = g_filename_from_utf8 (SvPVutf8_nolen (path), -1, 0, 0, 0);
231	fp = fopen (filename, "rb");	314	fp = fopen (SvPVbyte_nolen (path), "rb");
232	g_free (filename);
233		315
234	if (!fp)	316	if (!fp)
235	XSRETURN_UNDEF;	317	XSRETURN_UNDEF;
236		318
237	cinfo.err = jpeg_std_error (&jerr.err);	319	cinfo.err = jpeg_std_error (&jerr.err);
…		…
309	fclose (fp);	391	fclose (fp);
310	jpeg_destroy_decompress (&cinfo);	392	jpeg_destroy_decompress (&cinfo);
311	}	393	}
312	OUTPUT:	394	OUTPUT:
313	RETVAL	395	RETVAL
		396
		397	void
		398	compare (GdkPixbuf a, GdkPixbuf b)
		399	PPCODE:
		400	{
		401	int w = gdk_pixbuf_get_width (a);
		402	int h = gdk_pixbuf_get_height (a);
		403	int sa = gdk_pixbuf_get_rowstride (a);
		404	int sb = gdk_pixbuf_get_rowstride (b);
		405
		406	guchar *pa = gdk_pixbuf_get_pixels (a);
		407	guchar *pb = gdk_pixbuf_get_pixels (b);
		408
		409	int x, y;
		410
		411	assert (w == gdk_pixbuf_get_width (b));
		412	assert (h == gdk_pixbuf_get_height (b));
		413
		414	assert (gdk_pixbuf_get_n_channels (a) == 3);
		415	assert (gdk_pixbuf_get_n_channels (b) == 3);
		416
		417	double diff = 0.;
		418	int peak = 0;
		419
		420	if (w && h)
		421	for (y = 0; y < h; y++)
		422	{
		423	guchar pa_ = pa + y sa;
		424	guchar pb_ = pb + y sb;
		425
		426	for (x = 0; x < w; x++)
		427	{
		428	int d;
		429
		430	d = ((int)pa_++) - ((int)pb_++); diff += d*d; peak = MAX (peak, abs (d));
		431	d = ((int)pa_++) - ((int)pb_++); diff += d*d; peak = MAX (peak, abs (d));
		432	d = ((int)pa_++) - ((int)pb_++); diff += d*d; peak = MAX (peak, abs (d));
		433	}
		434	}
		435
		436	EXTEND (SP, 2);
		437	PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.)))));
		438	PUSHs (sv_2mortal (newSVnv (peak / 255.)));
		439	}
314		440
315	#############################################################################	441	#############################################################################
316		442
317	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer	443	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer
318		444
…		…
383	}	509	}
384	}	510	}
385	OUTPUT:	511	OUTPUT:
386	RETVAL	512	RETVAL
387		513
		514	#############################################################################
		515
		516	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript
		517
		518	void
		519	dump_ascii85 (PerlIO fp, GdkPixbuf pb)
		520	CODE:
		521	{
		522	int w = gdk_pixbuf_get_width (pb);
		523	int h = gdk_pixbuf_get_height (pb);
		524	int x, y, i;
		525	guchar *dst;
		526	int bpp = gdk_pixbuf_get_n_channels (pb);
		527	guchar *src = gdk_pixbuf_get_pixels (pb);
		528	int sstr = gdk_pixbuf_get_rowstride (pb);
		529
		530	a85_init ();
		531
		532	for (y = 0; y < h; y++)
		533	for (x = 0; x < w; x++)
		534	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
		535	a85_push (fp, src [x * bpp + y * sstr + i]);
		536
		537	a85_finish (fp);
		538	}
		539
		540	void
		541	dump_binary (PerlIO fp, GdkPixbuf pb)
		542	CODE:
		543	{
		544	int w = gdk_pixbuf_get_width (pb);
		545	int h = gdk_pixbuf_get_height (pb);
		546	int x, y, i;
		547	guchar *dst;
		548	int bpp = gdk_pixbuf_get_n_channels (pb);
		549	guchar *src = gdk_pixbuf_get_pixels (pb);
		550	int sstr = gdk_pixbuf_get_rowstride (pb);
		551
		552	for (y = 0; y < h; y++)
		553	for (x = 0; x < w; x++)
		554	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
		555	PerlIO_putc (fp, src [x * bpp + y * sstr + i]);
		556	}
		557
		558	#############################################################################
		559
		560	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
		561
388	SV *	562	SV *
389	pb_to_p7 (GdkPixbuf *pb)	563	pb_to_hv84 (GdkPixbuf *pb)
390	CODE:	564	CODE:
391	{	565	{
392	int w = gdk_pixbuf_get_width (pb);	566	int w = gdk_pixbuf_get_width (pb);
393	int h = gdk_pixbuf_get_height (pb);	567	int h = gdk_pixbuf_get_height (pb);
394	int x, y;	568	int x, y;
395	guchar *dst;	569	guchar *dst;
396	int bpp = gdk_pixbuf_get_n_channels (pb);	570	int bpp = gdk_pixbuf_get_n_channels (pb);
397	guchar *src = gdk_pixbuf_get_pixels (pb);	571	guchar *src = gdk_pixbuf_get_pixels (pb);
398	int sstr = gdk_pixbuf_get_rowstride (pb);	572	int sstr = gdk_pixbuf_get_rowstride (pb);
399	int Er[IW], Eg[IW], Eb[IW];
400	int seed = 77;
401
402	RETVAL = newSV (w * h);
403	SvPOK_only (RETVAL);
404	SvCUR_set (RETVAL, w * h);
405
406	dst = (guchar *)SvPVX (RETVAL);
407
408	memset (Er, 0, sizeof (int) * IW);
409	memset (Eg, 0, sizeof (int) * IW);
410	memset (Eb, 0, sizeof (int) * IW);
411
412	/* some primitive error distribution + random dithering */
413
414	for (y = 0; y < h; y++)
415	{
416	int er = 0, eg = 0, eb = 0;
417
418	for (x = 0; x < w; x++)
419	{
420	int r, g, b;
421	guchar p = src + x bpp + y * sstr;
422
423	r = ((p[0] + er + Er[x]) * 7 + (RAND & 127) + 64) / 255;
424	g = ((p[1] + eg + Eg[x]) * 7 + (RAND & 127) + 64) / 255;
425	b = ((p[2] + eb + Eb[x]) * 3 + (RAND & 127) + 64) / 255;
426
427	r = r > 7 ? 7 : r < 0 ? 0 : r;
428	g = g > 7 ? 7 : g < 0 ? 0 : g;
429	b = b > 3 ? 3 : b < 0 ? 0 : b;
430
431	er += p[0] - (r * 255 + 4) / 7;
432	eg += p[1] - (g * 255 + 4) / 7;
433	eb += p[2] - (b * 255 + 2) / 3;
434
435	Er[x] = er >> 1; er -= (er + 1) >> 1;
436	Eg[x] = eg >> 1; eg -= (eg + 1) >> 1;
437	Eb[x] = eb >> 1; eb -= (eb + 1) >> 1;
438
439	*dst++ = r << 5 \| g << 2 \| b;
440	}
441	}
442	}
443	OUTPUT:
444	RETVAL
445
446	#############################################################################
447
448	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript
449
450	void
451	dump_ascii85 (PerlIO fp, GdkPixbuf pb)
452	CODE:
453	{
454	int w = gdk_pixbuf_get_width (pb);
455	int h = gdk_pixbuf_get_height (pb);
456	int x, y, i;
457	guchar *dst;
458	int bpp = gdk_pixbuf_get_n_channels (pb);
459	guchar *src = gdk_pixbuf_get_pixels (pb);
460	int sstr = gdk_pixbuf_get_rowstride (pb);
461
462	a85_init ();
463
464	for (y = 0; y < h; y++)
465	for (x = 0; x < w; x++)
466	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
467	a85_push (fp, src [x * bpp + y * sstr + i]);
468
469	a85_finish (fp);
470	}
471
472	void
473	dump_binary (PerlIO fp, GdkPixbuf pb)
474	CODE:
475	{
476	int w = gdk_pixbuf_get_width (pb);
477	int h = gdk_pixbuf_get_height (pb);
478	int x, y, i;
479	guchar *dst;
480	int bpp = gdk_pixbuf_get_n_channels (pb);
481	guchar *src = gdk_pixbuf_get_pixels (pb);
482	int sstr = gdk_pixbuf_get_rowstride (pb);
483
484	for (y = 0; y < h; y++)
485	for (x = 0; x < w; x++)
486	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
487	PerlIO_putc (fp, src [x * bpp + y * sstr + i]);
488	}
489
490	#############################################################################
491
492	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
493
494	SV *
495	pb_to_hv84 (GdkPixbuf *pb)
496	CODE:
497	{
498	int w = gdk_pixbuf_get_width (pb);
499	int h = gdk_pixbuf_get_height (pb);
500	int x, y;
501	guchar *dst;
502	int bpp = gdk_pixbuf_get_n_channels (pb);
503	guchar *src = gdk_pixbuf_get_pixels (pb);
504	int sstr = gdk_pixbuf_get_rowstride (pb);
505		573
506	RETVAL = newSV (6 * 8 * 12 / 8);	574	RETVAL = newSV (6 * 8 * 12 / 8);
507	SvPOK_only (RETVAL);	575	SvPOK_only (RETVAL);
508	SvCUR_set (RETVAL, 6 * 8 * 12 / 8);	576	SvCUR_set (RETVAL, 6 * 8 * 12 / 8);
509		577
…		…
578	#############################################################################	646	#############################################################################
579		647
580	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster	648	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster
581		649
582	SV *	650	SV *
583	make_histograms (SV *ar)	651	extract_features (SV *ar)
584	CODE:	652	CODE:
585	{	653	{
586	int i;	654	int i;
587	AV av, result;	655	AV av, result;
588		656
589	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)	657	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)
590	croak ("Not an array ref as first argument to make_histogram");	658	croak ("Not an array ref as first argument to extract_features");
591		659
592	av = (AV *) SvRV (ar);	660	av = (AV *) SvRV (ar);
593	result = newAV ();	661	result = newAV ();
594		662
595	for (i = 0; i <= av_len (av); ++i)	663	for (i = 0; i <= av_len (av); ++i)
596	{	664	{
597	const int HISTSIZE = 64;
598
599	int j;
600	SV sv = av_fetch (av, i, 1);	665	SV sv = av_fetch (av, i, 1);
601	STRLEN len;
602	char *buf = SvPVbyte (sv, len);
603
604	int tmphist[HISTSIZE];
605	float *hist;
606
607	SV histsv = newSV (HISTSIZE sizeof (float) + 1);	666	SV histsv = newSV (9 sizeof (float) + 1);
		667
608	SvPOK_on (histsv);	668	SvPOK_on (histsv);
609	SvCUR_set (histsv, HISTSIZE * sizeof (float));	669	SvCUR_set (histsv, 9 * sizeof (float));
610	hist = (float *)SvPVX (histsv);	670	float hist = (float )SvPVX (histsv);
611		671
612	Zero (tmphist, sizeof (tmphist), char);	672	struct feature f_h, f_s, f_v;
		673	feature_init (&f_h);
		674	feature_init (&f_s);
		675	feature_init (&f_v);
613		676
614	for (j = len; j--; )
615	{
616	unsigned int idx
617	= ((*buf & 0xc0) >> 2)
618	\| ((*buf & 0x18) >> 1)
619	\| (*buf & 0x03);
620
621	++tmphist[idx];
622	++buf;
623	}
624		677	{
625	for (j = 0; j < HISTSIZE; ++j)	678	STRLEN len;
626	hist[j] = (float)tmphist[j] / (len + 1e-30);	679	unsigned char buf = (unsigned char )SvPVbyte (sv, len);
		680	while (len >= 3)
		681	{
		682	unsigned int r, g, b, h, s, v;
		683	r = buf++; g = buf++; b = *buf++;
		684	rgb_to_hsv (r, g, b, &h, &s, &v);
		685
		686	feature_update_pass_1 (&f_h, h);
		687	feature_update_pass_1 (&f_s, s);
		688	feature_update_pass_1 (&f_v, v);
		689
		690	len -= 3;
		691	}
		692
		693	feature_finish_pass_1 (&f_h);
		694	feature_finish_pass_1 (&f_s);
		695	feature_finish_pass_1 (&f_v);
		696	}
		697
		698	{
		699	STRLEN len;
		700	unsigned char buf = (unsigned char )SvPVbyte (sv, len);
		701	while (len >= 3)
		702	{
		703	unsigned int r, g, b, h, s, v;
		704	r = buf++; g = buf++; b = *buf++;
		705	rgb_to_hsv (r, g, b, &h, &s, &v);
		706
		707	feature_update_pass_2 (&f_h, h);
		708	feature_update_pass_2 (&f_s, s);
		709	feature_update_pass_2 (&f_v, v);
		710
		711	len -= 3;
		712	}
		713
		714	feature_finish_pass_2 (&f_h);
		715	feature_finish_pass_2 (&f_s);
		716	feature_finish_pass_2 (&f_v);
		717	}
		718
		719	hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.;
		720	hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ;
		721	hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5;
627		722
628	av_push (result, histsv);	723	av_push (result, histsv);
629	}	724	}
630		725
631	RETVAL = newRV_noinc ((SV *)result);	726	RETVAL = newRV_noinc ((SV *)result);
632	}	727	}
633	OUTPUT:	728	OUTPUT:
634	RETVAL	729	RETVAL
635		730
636

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Comparing CV/CV.xs (file contents): Revision 1.27 by root, Sun Aug 21 02:23:52 2005 UTC vs. Revision 1.40 by root, Sat Nov 25 15:00:51 2006 UTC

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Comparing CV/CV.xs (file contents):
Revision 1.27 by root, Sun Aug 21 02:23:52 2005 UTC vs.
Revision 1.40 by root, Sat Nov 25 15:00:51 2006 UTC