[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 1.43 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>
		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
		19	#include <assert.h>
		20
16	#define IW 80 /* MUST match Schnauer.pm! */	21	#define IW 80 /* MUST match Schnauzer.pm! */
17	#define IH 60 /* MUST match Schnauer.pm! */	22	#define IH 60 /* MUST match Schnauzer.pm! */
18		23
19	#define RAND (seed = (seed + 7141) * 54773 % 134456)	24	#define RAND (seed = (seed + 7141) * 54773 % 134456)
20		25
21	#define LINELENGTH 240	26	#define LINELENGTH 240
22		27
23	#define ELLIPSIS "\xe2\x80\xa6"	28	#define ELLIPSIS "\xe2\x80\xa6"
		29
		30	typedef char *octet_string;
24		31
25	struct jpg_err_mgr	32	struct jpg_err_mgr
26	{	33	{
27	struct jpeg_error_mgr err;	34	struct jpeg_error_mgr err;
28	jmp_buf setjmp_buffer;	35	jmp_buf setjmp_buffer;
…		…
65		72
66	*h &= 255;	73	*h &= 255;
67	}	74	}
68	}	75	}
69		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
70	static guint32 a85_val;	132	static guint32 a85_val;
71	static guint a85_cnt;	133	static guint a85_cnt;
72	static guchar a85_buf[LINELENGTH], *a85_ptr;	134	static guchar a85_buf[LINELENGTH], *a85_ptr;
73		135
74	static void	136	static void
…		…
126		188
127	MODULE = Gtk2::CV PACKAGE = Gtk2::CV	189	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
128		190
129	PROTOTYPES: ENABLE	191	PROTOTYPES: ENABLE
130		192
		193	# missing function in perl. really :)
		194	int
		195	common_prefix_length (a, b)
		196	unsigned char a = (unsigned char )SvPVutf8_nolen ($arg);
		197	unsigned char b = (unsigned char )SvPVutf8_nolen ($arg);
		198	CODE:
		199	RETVAL = 0;
		200
		201	while (a == b && *a)
		202	{
		203	RETVAL += (*a & 0xc0) != 0x80;
		204	a++, b++;
		205	}
		206
		207	OUTPUT:
		208	RETVAL
		209
		210	const char *
		211	magic (octet_string path)
		212	CODE:
		213	{
		214	static magic_t cookie;
		215
		216	if (!cookie)
		217	{
		218	cookie = magic_open (MAGIC_NONE);
		219
		220	if (cookie)
		221	magic_load (cookie, 0);
		222	else
		223	XSRETURN_UNDEF;
		224	}
		225
		226	RETVAL = magic_file (cookie, path);
		227	}
		228	OUTPUT:
		229	RETVAL
		230
		231	const char *
		232	magic_mime (octet_string path)
		233	CODE:
		234	{
		235	static magic_t cookie;
		236
		237	if (!cookie)
		238	{
		239	cookie = magic_open (MAGIC_MIME);
		240
		241	if (cookie)
		242	magic_load (cookie, 0);
		243	else
		244	XSRETURN_UNDEF;
		245	}
		246
		247	RETVAL = magic_file (cookie, path);
		248	}
		249	OUTPUT:
		250	RETVAL
		251
131	# 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);
132		258
133	gboolean	259	gboolean
134	gdk_net_wm_supports (GdkAtom property)	260	gdk_net_wm_supports (GdkAtom property)
135	CODE:	261	CODE:
136	#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)	262	#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)
…		…
164	}	290	}
165	OUTPUT:	291	OUTPUT:
166	RETVAL	292	RETVAL
167		293
168	GdkPixbuf_noinc *	294	GdkPixbuf_noinc *
169	transpose (GdkPixbuf *pb)	295	rotate (GdkPixbuf *pb, int angle)
170	CODE:	296	CODE:
171	{	297	RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE
172	int w = gdk_pixbuf_get_width (pb);	298	: angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE
173	int h = gdk_pixbuf_get_height (pb);	299	: angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN
174	int bpp = gdk_pixbuf_get_n_channels (pb);	300	: angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE
175	int x, y, i;	301	: 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:	302	OUTPUT:
214	RETVAL	303	RETVAL
215		304
216	GdkPixbuf_noinc *	305	GdkPixbuf_noinc *
217	load_jpeg (SV *path, int thumbnail=0)	306	load_jpeg (SV *path, int thumbnail=0)
…		…
221	struct jpg_err_mgr jerr;	310	struct jpg_err_mgr jerr;
222	guchar *data;	311	guchar *data;
223	int rs;	312	int rs;
224	FILE *fp;	313	FILE *fp;
225	volatile GdkPixbuf *pb = 0;	314	volatile GdkPixbuf *pb = 0;
226	gchar *filename;
227		315
228	RETVAL = 0;	316	RETVAL = 0;
229		317
230	filename = g_filename_from_utf8 (SvPVutf8_nolen (path), -1, 0, 0, 0);
231	fp = fopen (filename, "rb");	318	fp = fopen (SvPVbyte_nolen (path), "rb");
232	g_free (filename);
233		319
234	if (!fp)	320	if (!fp)
235	XSRETURN_UNDEF;	321	XSRETURN_UNDEF;
236		322
237	cinfo.err = jpeg_std_error (&jerr.err);	323	cinfo.err = jpeg_std_error (&jerr.err);
…		…
310	jpeg_destroy_decompress (&cinfo);	396	jpeg_destroy_decompress (&cinfo);
311	}	397	}
312	OUTPUT:	398	OUTPUT:
313	RETVAL	399	RETVAL
314		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
315	#############################################################################	446	#############################################################################
316		447
317	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer	448	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer
		449
		450	# currently only works for filenames (octet strings)
318		451
319	SV *	452	SV *
320	foldcase (SV *pathsv)	453	foldcase (SV *pathsv)
321	PROTOTYPE: $	454	PROTOTYPE: $
322	CODE:	455	CODE:
323	{	456	{
324	STRLEN plen;	457	STRLEN plen;
325	U8 path = (U8 )SvPVutf8 (pathsv, plen);	458	U8 path = (U8 )SvPV (pathsv, plen);
326	U8 *pend = path + plen;	459	U8 *pend = path + plen;
327	U8 dst [plen * 6 * 3], *dstp = dst;	460	U8 dst [plen * 6 * 3], *dstp = dst;
328		461
329	while (path < pend)	462	while (path < pend)
330	{	463	{
331	U8 ch = *path;	464	U8 ch = *path;
332		465
333	if (ch >= 'a' && ch <= 'z')	466	if (ch >= 'a' && ch <= 'z')
334	dstp++ = path++;	467	dstp++ = path++;
		468	else if (ch >= 'A' && ch <= 'Z')
		469	dstp++ = path++ + ('a' - 'A');
335	else if (ch >= '0' && ch <= '9')	470	else if (ch >= '0' && ch <= '9')
336	{	471	{
337	STRLEN el, nl = 0;	472	STRLEN el, nl = 0;
338	while (path >= '0' && path <= '9' && path < pend)	473	while (path >= '0' && path <= '9' && path < pend)
339	path++, nl++;	474	path++, nl++;
…		…
342	*dstp++ = '0';	477	*dstp++ = '0';
343		478
344	memcpy (dstp, path - nl, nl);	479	memcpy (dstp, path - nl, nl);
345	dstp += nl;	480	dstp += nl;
346	}	481	}
		482	else
		483	dstp++ = path++;
		484	#if 0
347	else	485	else
348	{	486	{
349	STRLEN cl;	487	STRLEN cl;
350	to_utf8_fold (path, dstp, &cl);	488	to_utf8_fold (path, dstp, &cl);
351	dstp += cl;	489	dstp += cl;
352	path += is_utf8_char (path);	490	path += is_utf8_char (path);
353	}	491	}
		492	#endif
354	}	493	}
355		494
356	RETVAL = newSVpvn ((const char *)dst, dstp - dst);	495	RETVAL = newSVpvn ((const char *)dst, dstp - dst);
357	}	496	}
358	OUTPUT:	497	OUTPUT:
…		…
383	}	522	}
384	}	523	}
385	OUTPUT:	524	OUTPUT:
386	RETVAL	525	RETVAL
387		526
		527	#############################################################################
		528
		529	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript
		530
		531	void
		532	dump_ascii85 (PerlIO fp, GdkPixbuf pb)
		533	CODE:
		534	{
		535	int w = gdk_pixbuf_get_width (pb);
		536	int h = gdk_pixbuf_get_height (pb);
		537	int x, y, i;
		538	guchar *dst;
		539	int bpp = gdk_pixbuf_get_n_channels (pb);
		540	guchar *src = gdk_pixbuf_get_pixels (pb);
		541	int sstr = gdk_pixbuf_get_rowstride (pb);
		542
		543	a85_init ();
		544
		545	for (y = 0; y < h; y++)
		546	for (x = 0; x < w; x++)
		547	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
		548	a85_push (fp, src [x * bpp + y * sstr + i]);
		549
		550	a85_finish (fp);
		551	}
		552
		553	void
		554	dump_binary (PerlIO fp, GdkPixbuf pb)
		555	CODE:
		556	{
		557	int w = gdk_pixbuf_get_width (pb);
		558	int h = gdk_pixbuf_get_height (pb);
		559	int x, y, i;
		560	guchar *dst;
		561	int bpp = gdk_pixbuf_get_n_channels (pb);
		562	guchar *src = gdk_pixbuf_get_pixels (pb);
		563	int sstr = gdk_pixbuf_get_rowstride (pb);
		564
		565	for (y = 0; y < h; y++)
		566	for (x = 0; x < w; x++)
		567	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
		568	PerlIO_putc (fp, src [x * bpp + y * sstr + i]);
		569	}
		570
		571	#############################################################################
		572
		573	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
		574
388	SV *	575	SV *
389	pb_to_p7 (GdkPixbuf *pb)	576	pb_to_hv84 (GdkPixbuf *pb)
390	CODE:	577	CODE:
391	{	578	{
392	int w = gdk_pixbuf_get_width (pb);	579	int w = gdk_pixbuf_get_width (pb);
393	int h = gdk_pixbuf_get_height (pb);	580	int h = gdk_pixbuf_get_height (pb);
394	int x, y;	581	int x, y;
395	guchar *dst;	582	guchar *dst;
396	int bpp = gdk_pixbuf_get_n_channels (pb);	583	int bpp = gdk_pixbuf_get_n_channels (pb);
397	guchar *src = gdk_pixbuf_get_pixels (pb);	584	guchar *src = gdk_pixbuf_get_pixels (pb);
398	int sstr = gdk_pixbuf_get_rowstride (pb);	585	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		586
506	RETVAL = newSV (6 * 8 * 12 / 8);	587	RETVAL = newSV (6 * 8 * 12 / 8);
507	SvPOK_only (RETVAL);	588	SvPOK_only (RETVAL);
508	SvCUR_set (RETVAL, 6 * 8 * 12 / 8);	589	SvCUR_set (RETVAL, 6 * 8 * 12 / 8);
509		590
…		…
578	#############################################################################	659	#############################################################################
579		660
580	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster	661	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster
581		662
582	SV *	663	SV *
583	make_histograms (SV *ar)	664	extract_features (SV *ar)
584	CODE:	665	CODE:
585	{	666	{
586	int i;	667	int i;
587	AV av, result;	668	AV av, result;
588		669
589	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)	670	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)
590	croak ("Not an array ref as first argument to make_histogram");	671	croak ("Not an array ref as first argument to extract_features");
591		672
592	av = (AV *) SvRV (ar);	673	av = (AV *) SvRV (ar);
593	result = newAV ();	674	result = newAV ();
594		675
595	for (i = 0; i <= av_len (av); ++i)	676	for (i = 0; i <= av_len (av); ++i)
596	{	677	{
597	const int HISTSIZE = 64;
598
599	int j;
600	SV sv = av_fetch (av, i, 1);	678	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);	679	SV histsv = newSV (9 sizeof (float) + 1);
		680
608	SvPOK_on (histsv);	681	SvPOK_on (histsv);
609	SvCUR_set (histsv, HISTSIZE * sizeof (float));	682	SvCUR_set (histsv, 9 * sizeof (float));
610	hist = (float *)SvPVX (histsv);	683	float hist = (float )SvPVX (histsv);
611		684
612	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);
613		689
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		690	{
625	for (j = 0; j < HISTSIZE; ++j)	691	STRLEN len;
626	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;
627		735
628	av_push (result, histsv);	736	av_push (result, histsv);
629	}	737	}
630		738
631	RETVAL = newRV_noinc ((SV *)result);	739	RETVAL = newRV_noinc ((SV *)result);
632	}	740	}
633	OUTPUT:	741	OUTPUT:
634	RETVAL	742	RETVAL
635		743
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 1.43 by root, Sun May 3 08:16:47 2009 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 1.43 by root, Sun May 3 08:16:47 2009 UTC