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

Comparing CV/CV.xs (file contents):
Revision 1.22 by root, Sun Aug 14 02:25:44 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>
		12	#include <glib.h>
		13	#include <gtk/gtk.h>
9	#include <gdk-pixbuf/gdk-pixbuf.h>	14	#include <gdk-pixbuf/gdk-pixbuf.h>
10		15
11	#include <gperl.h>	16	#include <gperl.h>
12	#include <gtk2perl.h>	17	#include <gtk2perl.h>
13		18
14	#define IW 80 /* MUST match Schnauer.pm! */	19	#define IW 80 /* MUST match Schnauzer.pm! */
15	#define IH 60 /* MUST match Schnauer.pm! */	20	#define IH 60 /* MUST match Schnauzer.pm! */
16		21
17	#define RAND (seed = (seed + 7141) * 54773 % 134456)	22	#define RAND (seed = (seed + 7141) * 54773 % 134456)
18		23
19	#define LINELENGTH 240	24	#define LINELENGTH 240
20		25
…		…
63		68
64	*h &= 255;	69	*h &= 255;
65	}	70	}
66	}	71	}
67		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
68	static guint32 a85_val;	128	static guint32 a85_val;
69	static guint a85_cnt;	129	static guint a85_cnt;
70	static guchar a85_buf[LINELENGTH], *a85_ptr;	130	static guchar a85_buf[LINELENGTH], *a85_ptr;
71		131
72	static void	132	static void
…		…
124		184
125	MODULE = Gtk2::CV PACKAGE = Gtk2::CV	185	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
126		186
127	PROTOTYPES: ENABLE	187	PROTOTYPES: ENABLE
128		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
129	# 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);
130		254
131	gboolean	255	gboolean
132	gdk_net_wm_supports (GdkAtom property)	256	gdk_net_wm_supports (GdkAtom property)
133	CODE:	257	CODE:
134	#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)	258	#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)
…		…
138	#endif	262	#endif
139	OUTPUT:	263	OUTPUT:
140	RETVAL	264	RETVAL
141		265
142	GdkPixbuf_noinc *	266	GdkPixbuf_noinc *
143	transpose (GdkPixbuf *pb)	267	dealpha_expose (GdkPixbuf *pb)
144	CODE:	268	CODE:
145	{	269	{
146	int w = gdk_pixbuf_get_width (pb);	270	int w = gdk_pixbuf_get_width (pb);
147	int h = gdk_pixbuf_get_height (pb);	271	int h = gdk_pixbuf_get_height (pb);
148	int bpp = gdk_pixbuf_get_n_channels (pb);	272	int bpp = gdk_pixbuf_get_n_channels (pb);
149	int x, y, i;	273	int x, y, i;
150	guchar src = gdk_pixbuf_get_pixels (pb), dst;	274	guchar src = gdk_pixbuf_get_pixels (pb), dst;
151	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;	275	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;
152		276
153	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w);	277	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);
154		278
155	dst = gdk_pixbuf_get_pixels (RETVAL);	279	dst = gdk_pixbuf_get_pixels (RETVAL);
156	dstr = gdk_pixbuf_get_rowstride (RETVAL);	280	dstr = gdk_pixbuf_get_rowstride (RETVAL);
157		281
158	for (y = 0; y < h; y++)
159	for (x = 0; x < w; x++)	282	for (x = 0; x < w; x++)
		283	for (y = 0; y < h; y++)
160	for (i = 0; i < bpp; i++)	284	for (i = 0; i < 3; i++)
161	dst[y * bpp + x * dstr + i] = src[x * bpp + y * sstr + i];	285	dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i];
162	}	286	}
163	OUTPUT:	287	OUTPUT:
164	RETVAL	288	RETVAL
165		289
166	GdkPixbuf_noinc *	290	GdkPixbuf_noinc *
167	flop (GdkPixbuf *pb)	291	rotate (GdkPixbuf *pb, int angle)
168	CODE:	292	CODE:
169	{	293	RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE
170	int w = gdk_pixbuf_get_width (pb);	294	: angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE
171	int h = gdk_pixbuf_get_height (pb);	295	: angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN
172	int bpp = gdk_pixbuf_get_n_channels (pb);	296	: angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE
173	int x, y, i;	297	: angle);
174	guchar src = gdk_pixbuf_get_pixels (pb), dst;
175	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;
176
177	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h);
178
179	dst = gdk_pixbuf_get_pixels (RETVAL);
180	dstr = gdk_pixbuf_get_rowstride (RETVAL);
181
182	for (y = 0; y < h; y++)
183	for (x = 0; x < w; x++)
184	for (i = 0; i < bpp; i++)
185	dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i];
186	}
187	OUTPUT:	298	OUTPUT:
188	RETVAL	299	RETVAL
189		300
190	GdkPixbuf_noinc *	301	GdkPixbuf_noinc *
191	load_jpeg (char *path, int thumbnail=0)	302	load_jpeg (SV *path, int thumbnail=0)
192	CODE:	303	CODE:
193	{	304	{
194	struct jpeg_decompress_struct cinfo;	305	struct jpeg_decompress_struct cinfo;
195	struct jpg_err_mgr jerr;	306	struct jpg_err_mgr jerr;
196	guchar *data;	307	guchar *data;
197	int rs;	308	int rs;
198	FILE *fp;	309	FILE *fp;
199	volatile GdkPixbuf *pb = 0;	310	volatile GdkPixbuf *pb = 0;
		311
200	RETVAL = 0;	312	RETVAL = 0;
201		313
202	if (!(fp = fopen (path, "rb")))	314	fp = fopen (SvPVbyte_nolen (path), "rb");
		315
		316	if (!fp)
203	XSRETURN_UNDEF;	317	XSRETURN_UNDEF;
204		318
205	cinfo.err = jpeg_std_error (&jerr.err);	319	cinfo.err = jpeg_std_error (&jerr.err);
206		320
207	jerr.err.error_exit = cv_error_exit;	321	jerr.err.error_exit = cv_error_exit;
…		…
278	jpeg_destroy_decompress (&cinfo);	392	jpeg_destroy_decompress (&cinfo);
279	}	393	}
280	OUTPUT:	394	OUTPUT:
281	RETVAL	395	RETVAL
282		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	}
		440
283	#############################################################################	441	#############################################################################
284		442
285	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer	443	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer
286		444
287	SV *	445	SV *
288	foldcase (SV *pathsv)	446	foldcase (SV *pathsv)
289	PROTOTYPE: $	447	PROTOTYPE: $
290	CODE:	448	CODE:
291	{	449	{
292	STRLEN plen;	450	STRLEN plen;
293	U8 *path = SvPVutf8 (pathsv, plen);	451	U8 path = (U8 )SvPVutf8 (pathsv, plen);
294	U8 *pend = path + plen;	452	U8 *pend = path + plen;
295	U8 dst [plen * 6 * 3], *dstp = dst;	453	U8 dst [plen * 6 * 3], *dstp = dst;
296		454
297	while (path < pend)	455	while (path < pend)
298	{	456	{
…		…
319	dstp += cl;	477	dstp += cl;
320	path += is_utf8_char (path);	478	path += is_utf8_char (path);
321	}	479	}
322	}	480	}
323		481
324	RETVAL = newSVpvn (dst, dstp - dst);	482	RETVAL = newSVpvn ((const char *)dst, dstp - dst);
325	}	483	}
326	OUTPUT:	484	OUTPUT:
327	RETVAL	485	RETVAL
328		486
329	GdkPixbuf_noinc *	487	GdkPixbuf_noinc *
330	p7_to_pb (int w, int h, guchar *src)	488	p7_to_pb (int w, int h, SV *src_sv)
331	PROTOTYPE: @	489	PROTOTYPE: @
332	CODE:	490	CODE:
333	{	491	{
334	int x, y;	492	int x, y;
335	guchar dst, d;	493	guchar dst, d;
336	int dstr;	494	int dstr;
		495	guchar src = (guchar )SvPVbyte_nolen (src_sv);
337		496
338	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);	497	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);
339	dst = gdk_pixbuf_get_pixels (RETVAL);	498	dst = gdk_pixbuf_get_pixels (RETVAL);
340	dstr = gdk_pixbuf_get_rowstride (RETVAL);	499	dstr = gdk_pixbuf_get_rowstride (RETVAL);
341		500
…		…
350	}	509	}
351	}	510	}
352	OUTPUT:	511	OUTPUT:
353	RETVAL	512	RETVAL
354		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
355	SV *	562	SV *
356	pb_to_p7 (GdkPixbuf *pb)	563	pb_to_hv84 (GdkPixbuf *pb)
357	CODE:	564	CODE:
358	{	565	{
359	int w = gdk_pixbuf_get_width (pb);	566	int w = gdk_pixbuf_get_width (pb);
360	int h = gdk_pixbuf_get_height (pb);	567	int h = gdk_pixbuf_get_height (pb);
361	int x, y;	568	int x, y;
362	guchar *dst;	569	guchar *dst;
363	int bpp = gdk_pixbuf_get_n_channels (pb);	570	int bpp = gdk_pixbuf_get_n_channels (pb);
364	guchar *src = gdk_pixbuf_get_pixels (pb);	571	guchar *src = gdk_pixbuf_get_pixels (pb);
365	int sstr = gdk_pixbuf_get_rowstride (pb);	572	int sstr = gdk_pixbuf_get_rowstride (pb);
366	int Er[IW], Eg[IW], Eb[IW];
367	int seed = 77;
368
369	RETVAL = newSV (w * h);
370	SvPOK_only (RETVAL);
371	SvCUR_set (RETVAL, w * h);
372
373	dst = SvPVX (RETVAL);
374
375	memset (Er, 0, sizeof (int) * IW);
376	memset (Eg, 0, sizeof (int) * IW);
377	memset (Eb, 0, sizeof (int) * IW);
378
379	/* some primitive error distribution + random dithering */
380
381	for (y = 0; y < h; y++)
382	{
383	int er = 0, eg = 0, eb = 0;
384
385	for (x = 0; x < w; x++)
386	{
387	int r, g, b;
388	guchar p = src + x bpp + y * sstr;
389
390	r = ((p[0] + er + Er[x]) * 7 + (RAND & 127) + 64) / 255;
391	g = ((p[1] + eg + Eg[x]) * 7 + (RAND & 127) + 64) / 255;
392	b = ((p[2] + eb + Eb[x]) * 3 + (RAND & 127) + 64) / 255;
393
394	r = r > 7 ? 7 : r < 0 ? 0 : r;
395	g = g > 7 ? 7 : g < 0 ? 0 : g;
396	b = b > 3 ? 3 : b < 0 ? 0 : b;
397
398	er += p[0] - (r * 255 + 4) / 7;
399	eg += p[1] - (g * 255 + 4) / 7;
400	eb += p[2] - (b * 255 + 2) / 3;
401
402	Er[x] = er >> 1; er -= (er + 1) >> 1;
403	Eg[x] = eg >> 1; eg -= (eg + 1) >> 1;
404	Eb[x] = eb >> 1; eb -= (eb + 1) >> 1;
405
406	*dst++ = r << 5 \| g << 2 \| b;
407	}
408	}
409	}
410	OUTPUT:
411	RETVAL
412
413	#############################################################################
414
415	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript
416
417	void
418	dump_ascii85 (PerlIO fp, GdkPixbuf pb)
419	CODE:
420	{
421	int w = gdk_pixbuf_get_width (pb);
422	int h = gdk_pixbuf_get_height (pb);
423	int x, y, i;
424	guchar *dst;
425	int bpp = gdk_pixbuf_get_n_channels (pb);
426	guchar *src = gdk_pixbuf_get_pixels (pb);
427	int sstr = gdk_pixbuf_get_rowstride (pb);
428
429	a85_init ();
430
431	for (y = 0; y < h; y++)
432	for (x = 0; x < w; x++)
433	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
434	a85_push (fp, src [x * bpp + y * sstr + i]);
435
436	a85_finish (fp);
437	}
438
439	void
440	dump_binary (PerlIO fp, GdkPixbuf pb)
441	CODE:
442	{
443	int w = gdk_pixbuf_get_width (pb);
444	int h = gdk_pixbuf_get_height (pb);
445	int x, y, i;
446	guchar *dst;
447	int bpp = gdk_pixbuf_get_n_channels (pb);
448	guchar *src = gdk_pixbuf_get_pixels (pb);
449	int sstr = gdk_pixbuf_get_rowstride (pb);
450
451	for (y = 0; y < h; y++)
452	for (x = 0; x < w; x++)
453	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
454	PerlIO_putc (fp, src [x * bpp + y * sstr + i]);
455	}
456
457	#############################################################################
458
459	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
460
461	SV *
462	pb_to_hv84 (GdkPixbuf *pb)
463	CODE:
464	{
465	int w = gdk_pixbuf_get_width (pb);
466	int h = gdk_pixbuf_get_height (pb);
467	int x, y;
468	guchar *dst;
469	int bpp = gdk_pixbuf_get_n_channels (pb);
470	guchar *src = gdk_pixbuf_get_pixels (pb);
471	int sstr = gdk_pixbuf_get_rowstride (pb);
472		573
473	RETVAL = newSV (6 * 8 * 12 / 8);	574	RETVAL = newSV (6 * 8 * 12 / 8);
474	SvPOK_only (RETVAL);	575	SvPOK_only (RETVAL);
475	SvCUR_set (RETVAL, 6 * 8 * 12 / 8);	576	SvCUR_set (RETVAL, 6 * 8 * 12 / 8);
476		577
477	dst = SvPVX (RETVAL);	578	dst = (guchar *)SvPVX (RETVAL);
478		579
479	/* some primitive error distribution + random dithering */	580	/* some primitive error distribution + random dithering */
480		581
481	for (y = 0; y < h; y++)	582	for (y = 0; y < h; y++)
482	{	583	{
…		…
545	#############################################################################	646	#############################################################################
546		647
547	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster	648	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster
548		649
549	SV *	650	SV *
550	make_histograms (SV *ar)	651	extract_features (SV *ar)
551	CODE:	652	CODE:
552	{	653	{
553	int i;	654	int i;
554	AV av, result;	655	AV av, result;
555		656
556	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)	657	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)
557	croak ("Not an array ref as first argument to make_histogram");	658	croak ("Not an array ref as first argument to extract_features");
558		659
559	av = (AV *) SvRV (ar);	660	av = (AV *) SvRV (ar);
560	result = newAV ();	661	result = newAV ();
561		662
562	for (i = 0; i <= av_len (av); ++i)	663	for (i = 0; i <= av_len (av); ++i)
563	{	664	{
564	const int HISTSIZE = 64;
565
566	int j;
567	SV sv = av_fetch (av, i, 1);	665	SV sv = av_fetch (av, i, 1);
568	STRLEN len;
569	char *buf = SvPVbyte (sv, len);
570
571	int tmphist[HISTSIZE];
572	float *hist;
573
574	SV histsv = newSV (HISTSIZE sizeof (float) + 1);	666	SV histsv = newSV (9 sizeof (float) + 1);
		667
575	SvPOK_on (histsv);	668	SvPOK_on (histsv);
576	SvCUR_set (histsv, HISTSIZE * sizeof (float));	669	SvCUR_set (histsv, 9 * sizeof (float));
577	hist = (float *)SvPVX (histsv);	670	float hist = (float )SvPVX (histsv);
578		671
579	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);
580		676
581	for (j = len; j--; )
582	{
583	unsigned int idx
584	= ((*buf & 0xc0) >> 2)
585	\| ((*buf & 0x18) >> 1)
586	\| (*buf & 0x03);
587
588	++tmphist[idx];
589	++buf;
590	}
591		677	{
592	for (j = 0; j < HISTSIZE; ++j)	678	STRLEN len;
593	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;
594		722
595	av_push (result, histsv);	723	av_push (result, histsv);
596	}	724	}
597		725
598	RETVAL = newRV_noinc ((SV *)result);	726	RETVAL = newRV_noinc ((SV *)result);
599	}	727	}
600	OUTPUT:	728	OUTPUT:
601	RETVAL	729	RETVAL
602		730
603

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Comparing CV/CV.xs (file contents): Revision 1.22 by root, Sun Aug 14 02:25:44 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 1.22 by root, Sun Aug 14 02:25:44 2005 UTC vs.
Revision 1.40 by root, Sat Nov 25 15:00:51 2006 UTC