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

Comparing CV/CV.xs (file contents):
Revision 1.24 by root, Wed Aug 17 05:25:28 2005 UTC vs.
Revision 1.39 by root, Fri Jun 23 09:09:14 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 in Gtk2 perl module
132		249
133	gboolean	250	gboolean
134	gdk_net_wm_supports (GdkAtom property)	251	gdk_net_wm_supports (GdkAtom property)
135	CODE:	252	CODE:
…		…
140	#endif	257	#endif
141	OUTPUT:	258	OUTPUT:
142	RETVAL	259	RETVAL
143		260
144	GdkPixbuf_noinc *	261	GdkPixbuf_noinc *
145	transpose (GdkPixbuf *pb)	262	dealpha_expose (GdkPixbuf *pb)
146	CODE:	263	CODE:
147	{	264	{
148	int w = gdk_pixbuf_get_width (pb);	265	int w = gdk_pixbuf_get_width (pb);
149	int h = gdk_pixbuf_get_height (pb);	266	int h = gdk_pixbuf_get_height (pb);
150	int bpp = gdk_pixbuf_get_n_channels (pb);	267	int bpp = gdk_pixbuf_get_n_channels (pb);
151	int x, y, i;	268	int x, y, i;
152	guchar src = gdk_pixbuf_get_pixels (pb), dst;	269	guchar src = gdk_pixbuf_get_pixels (pb), dst;
153	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;	270	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;
154		271
155	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w);	272	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);
156		273
157	dst = gdk_pixbuf_get_pixels (RETVAL);	274	dst = gdk_pixbuf_get_pixels (RETVAL);
158	dstr = gdk_pixbuf_get_rowstride (RETVAL);	275	dstr = gdk_pixbuf_get_rowstride (RETVAL);
159		276
160	for (y = 0; y < h; y++)
161	for (x = 0; x < w; x++)	277	for (x = 0; x < w; x++)
		278	for (y = 0; y < h; y++)
162	for (i = 0; i < bpp; i++)	279	for (i = 0; i < 3; i++)
163	dst[y * bpp + x * dstr + i] = src[x * bpp + y * sstr + i];	280	dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i];
164	}	281	}
165	OUTPUT:	282	OUTPUT:
166	RETVAL	283	RETVAL
167		284
168	GdkPixbuf_noinc *	285	GdkPixbuf_noinc *
169	flop (GdkPixbuf *pb)	286	rotate (GdkPixbuf *pb, int angle)
170	CODE:	287	CODE:
171	{	288	RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE
172	int w = gdk_pixbuf_get_width (pb);	289	: angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE
173	int h = gdk_pixbuf_get_height (pb);	290	: angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN
174	int bpp = gdk_pixbuf_get_n_channels (pb);	291	: angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE
175	int x, y, i;	292	: 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, w, h);
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[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i];
188	}
189	OUTPUT:	293	OUTPUT:
190	RETVAL	294	RETVAL
191		295
192	GdkPixbuf_noinc *	296	GdkPixbuf_noinc *
193	load_jpeg (SV *path, int thumbnail=0)	297	load_jpeg (SV *path, int thumbnail=0)
…		…
197	struct jpg_err_mgr jerr;	301	struct jpg_err_mgr jerr;
198	guchar *data;	302	guchar *data;
199	int rs;	303	int rs;
200	FILE *fp;	304	FILE *fp;
201	volatile GdkPixbuf *pb = 0;	305	volatile GdkPixbuf *pb = 0;
202	gchar *filename;
203		306
204	RETVAL = 0;	307	RETVAL = 0;
205		308
206	filename = g_filename_from_utf8 (SvPVutf8_nolen (path), -1, 0, 0, 0);
207	fp = fopen (filename, "rb");	309	fp = fopen (SvPVbyte_nolen (path), "rb");
208	g_free (filename);
209		310
210	if (!fp)	311	if (!fp)
211	XSRETURN_UNDEF;	312	XSRETURN_UNDEF;
212		313
213	cinfo.err = jpeg_std_error (&jerr.err);	314	cinfo.err = jpeg_std_error (&jerr.err);
…		…
286	jpeg_destroy_decompress (&cinfo);	387	jpeg_destroy_decompress (&cinfo);
287	}	388	}
288	OUTPUT:	389	OUTPUT:
289	RETVAL	390	RETVAL
290		391
		392	void
		393	compare (GdkPixbuf a, GdkPixbuf b)
		394	PPCODE:
		395	{
		396	int w = gdk_pixbuf_get_width (a);
		397	int h = gdk_pixbuf_get_height (a);
		398	int sa = gdk_pixbuf_get_rowstride (a);
		399	int sb = gdk_pixbuf_get_rowstride (b);
		400
		401	guchar *pa = gdk_pixbuf_get_pixels (a);
		402	guchar *pb = gdk_pixbuf_get_pixels (b);
		403
		404	int x, y;
		405
		406	assert (w == gdk_pixbuf_get_width (b));
		407	assert (h == gdk_pixbuf_get_height (b));
		408
		409	assert (gdk_pixbuf_get_n_channels (a) == 3);
		410	assert (gdk_pixbuf_get_n_channels (b) == 3);
		411
		412	double diff = 0.;
		413	int peak = 0;
		414
		415	if (w && h)
		416	for (y = 0; y < h; y++)
		417	{
		418	guchar pa_ = pa + y sa;
		419	guchar pb_ = pb + y sb;
		420
		421	for (x = 0; x < w; x++)
		422	{
		423	int d;
		424
		425	d = ((int)pa_++) - ((int)pb_++); diff += d*d; peak = MAX (peak, abs (d));
		426	d = ((int)pa_++) - ((int)pb_++); diff += d*d; peak = MAX (peak, abs (d));
		427	d = ((int)pa_++) - ((int)pb_++); diff += d*d; peak = MAX (peak, abs (d));
		428	}
		429	}
		430
		431	EXTEND (SP, 2);
		432	PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.)))));
		433	PUSHs (sv_2mortal (newSVnv (peak / 255.)));
		434	}
		435
291	#############################################################################	436	#############################################################################
292		437
293	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer	438	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer
294		439
295	SV *	440	SV *
296	foldcase (SV *pathsv)	441	foldcase (SV *pathsv)
297	PROTOTYPE: $	442	PROTOTYPE: $
298	CODE:	443	CODE:
299	{	444	{
300	STRLEN plen;	445	STRLEN plen;
301	U8 *path = SvPVutf8 (pathsv, plen);	446	U8 path = (U8 )SvPVutf8 (pathsv, plen);
302	U8 *pend = path + plen;	447	U8 *pend = path + plen;
303	U8 dst [plen * 6 * 3], *dstp = dst;	448	U8 dst [plen * 6 * 3], *dstp = dst;
304		449
305	while (path < pend)	450	while (path < pend)
306	{	451	{
…		…
327	dstp += cl;	472	dstp += cl;
328	path += is_utf8_char (path);	473	path += is_utf8_char (path);
329	}	474	}
330	}	475	}
331		476
332	RETVAL = newSVpvn (dst, dstp - dst);	477	RETVAL = newSVpvn ((const char *)dst, dstp - dst);
333	}	478	}
334	OUTPUT:	479	OUTPUT:
335	RETVAL	480	RETVAL
336		481
337	GdkPixbuf_noinc *	482	GdkPixbuf_noinc *
…		…
340	CODE:	485	CODE:
341	{	486	{
342	int x, y;	487	int x, y;
343	guchar dst, d;	488	guchar dst, d;
344	int dstr;	489	int dstr;
345	guchar *src = SvPVbyte_nolen (src_sv);	490	guchar src = (guchar )SvPVbyte_nolen (src_sv);
346		491
347	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);	492	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);
348	dst = gdk_pixbuf_get_pixels (RETVAL);	493	dst = gdk_pixbuf_get_pixels (RETVAL);
349	dstr = gdk_pixbuf_get_rowstride (RETVAL);	494	dstr = gdk_pixbuf_get_rowstride (RETVAL);
350		495
…		…
359	}	504	}
360	}	505	}
361	OUTPUT:	506	OUTPUT:
362	RETVAL	507	RETVAL
363		508
		509	#############################################################################
		510
		511	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript
		512
		513	void
		514	dump_ascii85 (PerlIO fp, GdkPixbuf pb)
		515	CODE:
		516	{
		517	int w = gdk_pixbuf_get_width (pb);
		518	int h = gdk_pixbuf_get_height (pb);
		519	int x, y, i;
		520	guchar *dst;
		521	int bpp = gdk_pixbuf_get_n_channels (pb);
		522	guchar *src = gdk_pixbuf_get_pixels (pb);
		523	int sstr = gdk_pixbuf_get_rowstride (pb);
		524
		525	a85_init ();
		526
		527	for (y = 0; y < h; y++)
		528	for (x = 0; x < w; x++)
		529	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
		530	a85_push (fp, src [x * bpp + y * sstr + i]);
		531
		532	a85_finish (fp);
		533	}
		534
		535	void
		536	dump_binary (PerlIO fp, GdkPixbuf pb)
		537	CODE:
		538	{
		539	int w = gdk_pixbuf_get_width (pb);
		540	int h = gdk_pixbuf_get_height (pb);
		541	int x, y, i;
		542	guchar *dst;
		543	int bpp = gdk_pixbuf_get_n_channels (pb);
		544	guchar *src = gdk_pixbuf_get_pixels (pb);
		545	int sstr = gdk_pixbuf_get_rowstride (pb);
		546
		547	for (y = 0; y < h; y++)
		548	for (x = 0; x < w; x++)
		549	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
		550	PerlIO_putc (fp, src [x * bpp + y * sstr + i]);
		551	}
		552
		553	#############################################################################
		554
		555	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
		556
364	SV *	557	SV *
365	pb_to_p7 (GdkPixbuf *pb)	558	pb_to_hv84 (GdkPixbuf *pb)
366	CODE:	559	CODE:
367	{	560	{
368	int w = gdk_pixbuf_get_width (pb);	561	int w = gdk_pixbuf_get_width (pb);
369	int h = gdk_pixbuf_get_height (pb);	562	int h = gdk_pixbuf_get_height (pb);
370	int x, y;	563	int x, y;
371	guchar *dst;	564	guchar *dst;
372	int bpp = gdk_pixbuf_get_n_channels (pb);	565	int bpp = gdk_pixbuf_get_n_channels (pb);
373	guchar *src = gdk_pixbuf_get_pixels (pb);	566	guchar *src = gdk_pixbuf_get_pixels (pb);
374	int sstr = gdk_pixbuf_get_rowstride (pb);	567	int sstr = gdk_pixbuf_get_rowstride (pb);
375	int Er[IW], Eg[IW], Eb[IW];
376	int seed = 77;
377
378	RETVAL = newSV (w * h);
379	SvPOK_only (RETVAL);
380	SvCUR_set (RETVAL, w * h);
381
382	dst = SvPVX (RETVAL);
383
384	memset (Er, 0, sizeof (int) * IW);
385	memset (Eg, 0, sizeof (int) * IW);
386	memset (Eb, 0, sizeof (int) * IW);
387
388	/* some primitive error distribution + random dithering */
389
390	for (y = 0; y < h; y++)
391	{
392	int er = 0, eg = 0, eb = 0;
393
394	for (x = 0; x < w; x++)
395	{
396	int r, g, b;
397	guchar p = src + x bpp + y * sstr;
398
399	r = ((p[0] + er + Er[x]) * 7 + (RAND & 127) + 64) / 255;
400	g = ((p[1] + eg + Eg[x]) * 7 + (RAND & 127) + 64) / 255;
401	b = ((p[2] + eb + Eb[x]) * 3 + (RAND & 127) + 64) / 255;
402
403	r = r > 7 ? 7 : r < 0 ? 0 : r;
404	g = g > 7 ? 7 : g < 0 ? 0 : g;
405	b = b > 3 ? 3 : b < 0 ? 0 : b;
406
407	er += p[0] - (r * 255 + 4) / 7;
408	eg += p[1] - (g * 255 + 4) / 7;
409	eb += p[2] - (b * 255 + 2) / 3;
410
411	Er[x] = er >> 1; er -= (er + 1) >> 1;
412	Eg[x] = eg >> 1; eg -= (eg + 1) >> 1;
413	Eb[x] = eb >> 1; eb -= (eb + 1) >> 1;
414
415	*dst++ = r << 5 \| g << 2 \| b;
416	}
417	}
418	}
419	OUTPUT:
420	RETVAL
421
422	#############################################################################
423
424	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript
425
426	void
427	dump_ascii85 (PerlIO fp, GdkPixbuf pb)
428	CODE:
429	{
430	int w = gdk_pixbuf_get_width (pb);
431	int h = gdk_pixbuf_get_height (pb);
432	int x, y, i;
433	guchar *dst;
434	int bpp = gdk_pixbuf_get_n_channels (pb);
435	guchar *src = gdk_pixbuf_get_pixels (pb);
436	int sstr = gdk_pixbuf_get_rowstride (pb);
437
438	a85_init ();
439
440	for (y = 0; y < h; y++)
441	for (x = 0; x < w; x++)
442	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
443	a85_push (fp, src [x * bpp + y * sstr + i]);
444
445	a85_finish (fp);
446	}
447
448	void
449	dump_binary (PerlIO fp, GdkPixbuf pb)
450	CODE:
451	{
452	int w = gdk_pixbuf_get_width (pb);
453	int h = gdk_pixbuf_get_height (pb);
454	int x, y, i;
455	guchar *dst;
456	int bpp = gdk_pixbuf_get_n_channels (pb);
457	guchar *src = gdk_pixbuf_get_pixels (pb);
458	int sstr = gdk_pixbuf_get_rowstride (pb);
459
460	for (y = 0; y < h; y++)
461	for (x = 0; x < w; x++)
462	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
463	PerlIO_putc (fp, src [x * bpp + y * sstr + i]);
464	}
465
466	#############################################################################
467
468	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
469
470	SV *
471	pb_to_hv84 (GdkPixbuf *pb)
472	CODE:
473	{
474	int w = gdk_pixbuf_get_width (pb);
475	int h = gdk_pixbuf_get_height (pb);
476	int x, y;
477	guchar *dst;
478	int bpp = gdk_pixbuf_get_n_channels (pb);
479	guchar *src = gdk_pixbuf_get_pixels (pb);
480	int sstr = gdk_pixbuf_get_rowstride (pb);
481		568
482	RETVAL = newSV (6 * 8 * 12 / 8);	569	RETVAL = newSV (6 * 8 * 12 / 8);
483	SvPOK_only (RETVAL);	570	SvPOK_only (RETVAL);
484	SvCUR_set (RETVAL, 6 * 8 * 12 / 8);	571	SvCUR_set (RETVAL, 6 * 8 * 12 / 8);
485		572
486	dst = SvPVX (RETVAL);	573	dst = (guchar *)SvPVX (RETVAL);
487		574
488	/* some primitive error distribution + random dithering */	575	/* some primitive error distribution + random dithering */
489		576
490	for (y = 0; y < h; y++)	577	for (y = 0; y < h; y++)
491	{	578	{
…		…
554	#############################################################################	641	#############################################################################
555		642
556	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster	643	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster
557		644
558	SV *	645	SV *
559	make_histograms (SV *ar)	646	extract_features (SV *ar)
560	CODE:	647	CODE:
561	{	648	{
562	int i;	649	int i;
563	AV av, result;	650	AV av, result;
564		651
565	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)	652	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)
566	croak ("Not an array ref as first argument to make_histogram");	653	croak ("Not an array ref as first argument to extract_features");
567		654
568	av = (AV *) SvRV (ar);	655	av = (AV *) SvRV (ar);
569	result = newAV ();	656	result = newAV ();
570		657
571	for (i = 0; i <= av_len (av); ++i)	658	for (i = 0; i <= av_len (av); ++i)
572	{	659	{
573	const int HISTSIZE = 64;
574
575	int j;
576	SV sv = av_fetch (av, i, 1);	660	SV sv = av_fetch (av, i, 1);
577	STRLEN len;
578	char *buf = SvPVbyte (sv, len);
579
580	int tmphist[HISTSIZE];
581	float *hist;
582
583	SV histsv = newSV (HISTSIZE sizeof (float) + 1);	661	SV histsv = newSV (9 sizeof (float) + 1);
		662
584	SvPOK_on (histsv);	663	SvPOK_on (histsv);
585	SvCUR_set (histsv, HISTSIZE * sizeof (float));	664	SvCUR_set (histsv, 9 * sizeof (float));
586	hist = (float *)SvPVX (histsv);	665	float hist = (float )SvPVX (histsv);
587		666
588	Zero (tmphist, sizeof (tmphist), char);	667	struct feature f_h, f_s, f_v;
		668	feature_init (&f_h);
		669	feature_init (&f_s);
		670	feature_init (&f_v);
589		671
590	for (j = len; j--; )
591	{
592	unsigned int idx
593	= ((*buf & 0xc0) >> 2)
594	\| ((*buf & 0x18) >> 1)
595	\| (*buf & 0x03);
596
597	++tmphist[idx];
598	++buf;
599	}
600		672	{
601	for (j = 0; j < HISTSIZE; ++j)	673	STRLEN len;
602	hist[j] = (float)tmphist[j] / (len + 1e-30);	674	unsigned char buf = (unsigned char )SvPVbyte (sv, len);
		675	while (len >= 3)
		676	{
		677	unsigned int r, g, b, h, s, v;
		678	r = buf++; g = buf++; b = *buf++;
		679	rgb_to_hsv (r, g, b, &h, &s, &v);
		680
		681	feature_update_pass_1 (&f_h, h);
		682	feature_update_pass_1 (&f_s, s);
		683	feature_update_pass_1 (&f_v, v);
		684
		685	len -= 3;
		686	}
		687
		688	feature_finish_pass_1 (&f_h);
		689	feature_finish_pass_1 (&f_s);
		690	feature_finish_pass_1 (&f_v);
		691	}
		692
		693	{
		694	STRLEN len;
		695	unsigned char buf = (unsigned char )SvPVbyte (sv, len);
		696	while (len >= 3)
		697	{
		698	unsigned int r, g, b, h, s, v;
		699	r = buf++; g = buf++; b = *buf++;
		700	rgb_to_hsv (r, g, b, &h, &s, &v);
		701
		702	feature_update_pass_2 (&f_h, h);
		703	feature_update_pass_2 (&f_s, s);
		704	feature_update_pass_2 (&f_v, v);
		705
		706	len -= 3;
		707	}
		708
		709	feature_finish_pass_2 (&f_h);
		710	feature_finish_pass_2 (&f_s);
		711	feature_finish_pass_2 (&f_v);
		712	}
		713
		714	hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.;
		715	hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ;
		716	hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5;
603		717
604	av_push (result, histsv);	718	av_push (result, histsv);
605	}	719	}
606		720
607	RETVAL = newRV_noinc ((SV *)result);	721	RETVAL = newRV_noinc ((SV *)result);
608	}	722	}
609	OUTPUT:	723	OUTPUT:
610	RETVAL	724	RETVAL
611		725
612

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Comparing CV/CV.xs (file contents): Revision 1.24 by root, Wed Aug 17 05:25:28 2005 UTC vs. Revision 1.39 by root, Fri Jun 23 09:09:14 2006 UTC

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Comparing CV/CV.xs (file contents):
Revision 1.24 by root, Wed Aug 17 05:25:28 2005 UTC vs.
Revision 1.39 by root, Fri Jun 23 09:09:14 2006 UTC