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

Comparing CV/CV.xs (file contents):
Revision 1.5 by root, Sat Nov 8 22:18:50 2003 UTC vs.
Revision 1.27 by root, Sun Aug 21 02:23:52 2005 UTC

…		…
1	#include "EXTERN.h"	1	#include "EXTERN.h"
2	#include "perl.h"	2	#include "perl.h"
3	#include "XSUB.h"	3	#include "XSUB.h"
4		4
		5	#include <string.h>
		6	#include <setjmp.h>
		7
		8	#include <jpeglib.h>
		9	#include <glib.h>
		10	#include <gtk/gtk.h>
5	#include <gdk-pixbuf/gdk-pixbuf.h>	11	#include <gdk-pixbuf/gdk-pixbuf.h>
6		12
7	#include <gperl.h>	13	#include <gperl.h>
8	#include <gtk2perl.h>	14	#include <gtk2perl.h>
9		15
10	#define IW 80	16	#define IW 80 /* MUST match Schnauer.pm! */
		17	#define IH 60 /* MUST match Schnauer.pm! */
11		18
12	#define RAND (seed = (seed + 7141) * 54773 % 134456)	19	#define RAND (seed = (seed + 7141) * 54773 % 134456)
		20
		21	#define LINELENGTH 240
		22
		23	#define ELLIPSIS "\xe2\x80\xa6"
		24
		25	struct jpg_err_mgr
		26	{
		27	struct jpeg_error_mgr err;
		28	jmp_buf setjmp_buffer;
		29	};
		30
		31	static void
		32	cv_error_exit (j_common_ptr cinfo)
		33	{
		34	longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99);
		35	}
		36
		37	static void
		38	cv_error_output (j_common_ptr cinfo)
		39	{
		40	return;
		41	}
		42
		43	static void
		44	rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b,
		45	unsigned int h, unsigned int s, unsigned int *v)
		46	{
		47	unsigned int mx = r; if (g > mx) mx = g; if (b > mx) mx = b;
		48	unsigned int mn = r; if (g < mn) mn = g; if (b < mn) mn = b;
		49	unsigned int delta = mx - mn;
		50
		51	*v = mx;
		52
		53	s = mx ? delta 255 / mx : 0;
		54
		55	if (delta == 0)
		56	*h = 0;
		57	else
		58	{
		59	if (r == mx)
		60	h = ((int)g - (int)b) 255 / (int)(delta * 3);
		61	else if (g == mx)
		62	h = ((int)b - (int)r) 255 / (int)(delta * 3) + 52;
		63	else if (b == mx)
		64	h = ((int)r - (int)g) 255 / (int)(delta * 3) + 103;
		65
		66	*h &= 255;
		67	}
		68	}
13		69
14	static guint32 a85_val;	70	static guint32 a85_val;
15	static guint a85_cnt;	71	static guint a85_cnt;
16	static guchar a85_buf[80], *a85_ptr;	72	static guchar a85_buf[LINELENGTH], *a85_ptr;
17		73
18	static void	74	static void
19	a85_init (void)	75	a85_init (void)
20	{	76	{
21	a85_cnt = 4;	77	a85_cnt = 4;
51	}	107	}
52	}	108	}
53		109
54	}	110	}
55		111
		112	static void
56	a85_finish (PerlIO *fp)	113	a85_finish (PerlIO *fp)
57	{	114	{
58	while (a85_cnt != 4)	115	while (a85_cnt != 4)
59	a85_push (fp, 0);	116	a85_push (fp, 0);
60		117
…		…
63	*a85_ptr++ = '\n';	120	*a85_ptr++ = '\n';
64		121
65	PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);	122	PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);
66	}	123	}
67		124
		125	/////////////////////////////////////////////////////////////////////////////
		126
68	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::ImageWindow	127	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
69		128
70	PROTOTYPES: ENABLE	129	PROTOTYPES: ENABLE
		130
		131	# missing in Gtk2 perl module
		132
		133	gboolean
		134	gdk_net_wm_supports (GdkAtom property)
		135	CODE:
		136	#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)
		137	RETVAL = gdk_net_wm_supports (property);
		138	#else
		139	RETVAL = 0;
		140	#endif
		141	OUTPUT:
		142	RETVAL
		143
		144	GdkPixbuf_noinc *
		145	dealpha_expose (GdkPixbuf *pb)
		146	CODE:
		147	{
		148	int w = gdk_pixbuf_get_width (pb);
		149	int h = gdk_pixbuf_get_height (pb);
		150	int bpp = gdk_pixbuf_get_n_channels (pb);
		151	int x, y, i;
		152	guchar src = gdk_pixbuf_get_pixels (pb), dst;
		153	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;
		154
		155	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);
		156
		157	dst = gdk_pixbuf_get_pixels (RETVAL);
		158	dstr = gdk_pixbuf_get_rowstride (RETVAL);
		159
		160	for (x = 0; x < w; x++)
		161	for (y = 0; y < h; y++)
		162	for (i = 0; i < 3; i++)
		163	dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i];
		164	}
		165	OUTPUT:
		166	RETVAL
71		167
72	GdkPixbuf_noinc *	168	GdkPixbuf_noinc *
73	transpose (GdkPixbuf *pb)	169	transpose (GdkPixbuf *pb)
74	CODE:	170	CODE:
75	{	171	{
76	int w = gdk_pixbuf_get_width (pb);	172	int w = gdk_pixbuf_get_width (pb);
77	int h = gdk_pixbuf_get_height (pb);	173	int h = gdk_pixbuf_get_height (pb);
78	int bpp = gdk_pixbuf_get_has_alpha (pb) ? 4 : 3;	174	int bpp = gdk_pixbuf_get_n_channels (pb);
79	int x, y, i;	175	int x, y, i;
80	guchar src = gdk_pixbuf_get_pixels (pb), dst;	176	guchar src = gdk_pixbuf_get_pixels (pb), dst;
81	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;	177	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;
82		178
83	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w);	179	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w);
…		…
97	flop (GdkPixbuf *pb)	193	flop (GdkPixbuf *pb)
98	CODE:	194	CODE:
99	{	195	{
100	int w = gdk_pixbuf_get_width (pb);	196	int w = gdk_pixbuf_get_width (pb);
101	int h = gdk_pixbuf_get_height (pb);	197	int h = gdk_pixbuf_get_height (pb);
102	int bpp = gdk_pixbuf_get_has_alpha (pb) ? 4 : 3;	198	int bpp = gdk_pixbuf_get_n_channels (pb);
103	int x, y, i;	199	int x, y, i;
104	guchar src = gdk_pixbuf_get_pixels (pb), dst;	200	guchar src = gdk_pixbuf_get_pixels (pb), dst;
105	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;	201	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;
106		202
107	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h);	203	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h);
…		…
115	dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i];	211	dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i];
116	}	212	}
117	OUTPUT:	213	OUTPUT:
118	RETVAL	214	RETVAL
119		215
		216	GdkPixbuf_noinc *
		217	load_jpeg (SV *path, int thumbnail=0)
		218	CODE:
		219	{
		220	struct jpeg_decompress_struct cinfo;
		221	struct jpg_err_mgr jerr;
		222	guchar *data;
		223	int rs;
		224	FILE *fp;
		225	volatile GdkPixbuf *pb = 0;
		226	gchar *filename;
		227
		228	RETVAL = 0;
		229
		230	filename = g_filename_from_utf8 (SvPVutf8_nolen (path), -1, 0, 0, 0);
		231	fp = fopen (filename, "rb");
		232	g_free (filename);
		233
		234	if (!fp)
		235	XSRETURN_UNDEF;
		236
		237	cinfo.err = jpeg_std_error (&jerr.err);
		238
		239	jerr.err.error_exit = cv_error_exit;
		240	jerr.err.output_message = cv_error_output;
		241
		242	if ((rs = setjmp (jerr.setjmp_buffer)))
		243	{
		244	fclose (fp);
		245	jpeg_destroy_decompress (&cinfo);
		246
		247	if (pb)
		248	g_object_unref ((gpointer)pb);
		249
		250	XSRETURN_UNDEF;
		251	}
		252
		253	jpeg_create_decompress (&cinfo);
		254
		255	jpeg_stdio_src (&cinfo, fp);
		256	jpeg_read_header (&cinfo, TRUE);
		257
		258	cinfo.dct_method = JDCT_DEFAULT;
		259	cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */
		260	cinfo.do_block_smoothing = FALSE;
		261	cinfo.out_color_space = JCS_RGB;
		262	cinfo.quantize_colors = FALSE;
		263
		264	cinfo.scale_num = 1;
		265	cinfo.scale_denom = 1;
		266
		267	jpeg_calc_output_dimensions (&cinfo);
		268
		269	if (thumbnail)
		270	{
		271	cinfo.dct_method = JDCT_FASTEST;
		272	cinfo.do_fancy_upsampling = FALSE;
		273
		274	while (cinfo.scale_denom < 8
		275	&& cinfo.output_width >= IW*4
		276	&& cinfo.output_height >= IH*4)
		277	{
		278	cinfo.scale_denom <<= 1;
		279	jpeg_calc_output_dimensions (&cinfo);
		280	}
		281	}
		282
		283	pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height);
		284	if (!RETVAL)
		285	longjmp (jerr.setjmp_buffer, 2);
		286
		287	data = gdk_pixbuf_get_pixels (RETVAL);
		288	rs = gdk_pixbuf_get_rowstride (RETVAL);
		289
		290	if (cinfo.output_components != 3)
		291	longjmp (jerr.setjmp_buffer, 3);
		292
		293	jpeg_start_decompress (&cinfo);
		294
		295	while (cinfo.output_scanline < cinfo.output_height)
		296	{
		297	int remaining = cinfo.output_height - cinfo.output_scanline;
		298	JSAMPROW rp[4];
		299
		300	rp [0] = data + cinfo.output_scanline * rs;
		301	rp [1] = (guchar *)rp [0] + rs;
		302	rp [2] = (guchar *)rp [1] + rs;
		303	rp [3] = (guchar *)rp [2] + rs;
		304
		305	jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4);
		306	}
		307
		308	jpeg_finish_decompress (&cinfo);
		309	fclose (fp);
		310	jpeg_destroy_decompress (&cinfo);
		311	}
		312	OUTPUT:
		313	RETVAL
		314
		315	#############################################################################
		316
120	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer	317	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer
121		318
		319	SV *
		320	foldcase (SV *pathsv)
		321	PROTOTYPE: $
		322	CODE:
		323	{
		324	STRLEN plen;
		325	U8 path = (U8 )SvPVutf8 (pathsv, plen);
		326	U8 *pend = path + plen;
		327	U8 dst [plen * 6 * 3], *dstp = dst;
		328
		329	while (path < pend)
		330	{
		331	U8 ch = *path;
		332
		333	if (ch >= 'a' && ch <= 'z')
		334	dstp++ = path++;
		335	else if (ch >= '0' && ch <= '9')
		336	{
		337	STRLEN el, nl = 0;
		338	while (path >= '0' && path <= '9' && path < pend)
		339	path++, nl++;
		340
		341	for (el = nl; el < 6; el++)
		342	*dstp++ = '0';
		343
		344	memcpy (dstp, path - nl, nl);
		345	dstp += nl;
		346	}
		347	else
		348	{
		349	STRLEN cl;
		350	to_utf8_fold (path, dstp, &cl);
		351	dstp += cl;
		352	path += is_utf8_char (path);
		353	}
		354	}
		355
		356	RETVAL = newSVpvn ((const char *)dst, dstp - dst);
		357	}
		358	OUTPUT:
		359	RETVAL
		360
122	GdkPixbuf_noinc *	361	GdkPixbuf_noinc *
123	p7_to_pb (int w, int h, guchar *src)	362	p7_to_pb (int w, int h, SV *src_sv)
		363	PROTOTYPE: @
124	CODE:	364	CODE:
125	{	365	{
126	int x, y;	366	int x, y;
127	guchar dst, d;	367	guchar dst, d;
128	int dstr;	368	int dstr;
		369	guchar src = (guchar )SvPVbyte_nolen (src_sv);
129		370
130	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);	371	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);
131	dst = gdk_pixbuf_get_pixels (RETVAL);	372	dst = gdk_pixbuf_get_pixels (RETVAL);
132	dstr = gdk_pixbuf_get_rowstride (RETVAL);	373	dstr = gdk_pixbuf_get_rowstride (RETVAL);
133		374
…		…
150	{	391	{
151	int w = gdk_pixbuf_get_width (pb);	392	int w = gdk_pixbuf_get_width (pb);
152	int h = gdk_pixbuf_get_height (pb);	393	int h = gdk_pixbuf_get_height (pb);
153	int x, y;	394	int x, y;
154	guchar *dst;	395	guchar *dst;
155	int bpp = gdk_pixbuf_get_has_alpha (pb) ? 4 : 3;	396	int bpp = gdk_pixbuf_get_n_channels (pb);
156	guchar *src = gdk_pixbuf_get_pixels (pb);	397	guchar *src = gdk_pixbuf_get_pixels (pb);
157	int sstr = gdk_pixbuf_get_rowstride (pb);	398	int sstr = gdk_pixbuf_get_rowstride (pb);
158	int Er[IW], Eg[IW], Eb[IW];	399	int Er[IW], Eg[IW], Eb[IW];
159	int seed = 77;	400	int seed = 77;
160		401
161	RETVAL = newSV (w * h);	402	RETVAL = newSV (w * h);
162	SvPOK_only (RETVAL);	403	SvPOK_only (RETVAL);
163	SvCUR_set (RETVAL, w * h);	404	SvCUR_set (RETVAL, w * h);
164		405
165	dst = SvPVX (RETVAL);	406	dst = (guchar *)SvPVX (RETVAL);
166		407
167	memset (Er, 0, sizeof (int) * IW);	408	memset (Er, 0, sizeof (int) * IW);
168	memset (Eg, 0, sizeof (int) * IW);	409	memset (Eg, 0, sizeof (int) * IW);
169	memset (Eb, 0, sizeof (int) * IW);	410	memset (Eb, 0, sizeof (int) * IW);
170		411
…		…
177	for (x = 0; x < w; x++)	418	for (x = 0; x < w; x++)
178	{	419	{
179	int r, g, b;	420	int r, g, b;
180	guchar p = src + x bpp + y * sstr;	421	guchar p = src + x bpp + y * sstr;
181		422
182	r = ((p[0] + er + Er[x]) * 7 + 128) / 255;	423	r = ((p[0] + er + Er[x]) * 7 + (RAND & 127) + 64) / 255;
183	g = ((p[1] + eg + Eg[x]) * 7 + 128) / 255;	424	g = ((p[1] + eg + Eg[x]) * 7 + (RAND & 127) + 64) / 255;
184	b = ((p[2] + eb + Eb[x]) * 3 + 128) / 255;	425	b = ((p[2] + eb + Eb[x]) * 3 + (RAND & 127) + 64) / 255;
185		426
186	r = r > 7 ? 7 : r < 0 ? 0 : r;	427	r = r > 7 ? 7 : r < 0 ? 0 : r;
187	g = g > 7 ? 7 : g < 0 ? 0 : g;	428	g = g > 7 ? 7 : g < 0 ? 0 : g;
188	b = b > 3 ? 3 : b < 0 ? 0 : b;	429	b = b > 3 ? 3 : b < 0 ? 0 : b;
189		430
190	er += p[0] - (r * 255 + 4) / 7;	431	er += p[0] - (r * 255 + 4) / 7;
191	eg += p[1] - (g * 255 + 4) / 7;	432	eg += p[1] - (g * 255 + 4) / 7;
192	eb += p[2] - (b * 255 + 2) / 3;	433	eb += p[2] - (b * 255 + 2) / 3;
193		434
194	Er[x] = er / 2; er -= er / 2 + RAND % 7 - 3;	435	Er[x] = er >> 1; er -= (er + 1) >> 1;
195	Eg[x] = eg / 2; eg -= eg / 2 + RAND % 7 - 3;	436	Eg[x] = eg >> 1; eg -= (eg + 1) >> 1;
196	Eb[x] = eb / 2; eb -= eb / 2 + RAND % 7 - 3;	437	Eb[x] = eb >> 1; eb -= (eb + 1) >> 1;
197		438
198	*dst++ = r << 5 \| g << 2 \| b;	439	*dst++ = r << 5 \| g << 2 \| b;
199	}	440	}
200	}	441	}
201	}	442	}
202	OUTPUT:	443	OUTPUT:
203	RETVAL	444	RETVAL
204		445
		446	#############################################################################
		447
205	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript	448	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript
206		449
207	void	450	void
208	dump_pb (PerlIO fp, GdkPixbuf pb)	451	dump_ascii85 (PerlIO fp, GdkPixbuf pb)
209	CODE:	452	CODE:
210	{	453	{
211	int w = gdk_pixbuf_get_width (pb);	454	int w = gdk_pixbuf_get_width (pb);
212	int h = gdk_pixbuf_get_height (pb);	455	int h = gdk_pixbuf_get_height (pb);
213	int x, y, i;	456	int x, y, i;
214	guchar *dst;	457	guchar *dst;
215	int bpp = gdk_pixbuf_get_has_alpha (pb) ? 4 : 3;	458	int bpp = gdk_pixbuf_get_n_channels (pb);
216	guchar *src = gdk_pixbuf_get_pixels (pb);	459	guchar *src = gdk_pixbuf_get_pixels (pb);
217	int sstr = gdk_pixbuf_get_rowstride (pb);	460	int sstr = gdk_pixbuf_get_rowstride (pb);
218		461
219	a85_init ();	462	a85_init ();
220		463
221	for (y = 0; y < h; y++)	464	for (y = 0; y < h; y++)
222	for (x = 0; x < w; x++)	465	for (x = 0; x < w; x++)
223	for (i = 0; i < 3; i++)	466	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
224	a85_push (fp, src [x * bpp + y * sstr + i]);	467	a85_push (fp, src [x * bpp + y * sstr + i]);
225		468
226	a85_finish (fp);	469	a85_finish (fp);
227	}	470	}
228		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);
229		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	}
230		489
		490	#############################################################################
231		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
		506	RETVAL = newSV (6 * 8 * 12 / 8);
		507	SvPOK_only (RETVAL);
		508	SvCUR_set (RETVAL, 6 * 8 * 12 / 8);
		509
		510	dst = (guchar *)SvPVX (RETVAL);
		511
		512	/* some primitive error distribution + random dithering */
		513
		514	for (y = 0; y < h; y++)
		515	{
		516	guchar p = src + y sstr;
		517
		518	for (x = 0; x < w; x += 2)
		519	{
		520	unsigned int r, g, b, h, s, v, H, V1, V2;
		521
		522	if (bpp == 3)
		523	r = p++, g = p++, b = *p++;
		524	else if (bpp == 1)
		525	r = g = b = *p++;
		526	else
		527	abort ();
		528
		529	rgb_to_hsv (r, g, b, &h, &s, &v);
		530
		531	H = (h * 15 / 255) << 4;
		532	V1 = v;
		533
		534	if (bpp == 3)
		535	r = p++, g = p++, b = *p++;
		536	else if (bpp == 1)
		537	r = g = b = *p++;
		538	else
		539	abort ();
		540
		541	rgb_to_hsv (r, g, b, &h, &s, &v);
		542
		543	H \|= h * 15 / 255;
		544	V2 = v;
		545
		546	*dst++ = H;
		547	*dst++ = V1;
		548	*dst++ = V2;
		549	}
		550	}
		551	}
		552	OUTPUT:
		553	RETVAL
		554
		555	SV *
		556	hv84_to_av (unsigned char *hv84)
		557	CODE:
		558	{
		559	int i = 72 / 3;
		560	AV *av = newAV ();
		561
		562	RETVAL = (SV )newRV_noinc ((SV )av);
		563	while (i--)
		564	{
		565	int h = *hv84++;
		566	int v1 = *hv84++;
		567	int v2 = *hv84++;
		568
		569	av_push (av, newSViv (v1));
		570	av_push (av, newSViv ((h >> 4) * 255 / 15));
		571	av_push (av, newSViv (v2));
		572	av_push (av, newSViv ((h & 15) * 255 / 15));
		573	}
		574	}
		575	OUTPUT:
		576	RETVAL
		577
		578	#############################################################################
		579
		580	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster
		581
		582	SV *
		583	make_histograms (SV *ar)
		584	CODE:
		585	{
		586	int i;
		587	AV av, result;
		588
		589	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)
		590	croak ("Not an array ref as first argument to make_histogram");
		591
		592	av = (AV *) SvRV (ar);
		593	result = newAV ();
		594
		595	for (i = 0; i <= av_len (av); ++i)
		596	{
		597	const int HISTSIZE = 64;
		598
		599	int j;
		600	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);
		608	SvPOK_on (histsv);
		609	SvCUR_set (histsv, HISTSIZE * sizeof (float));
		610	hist = (float *)SvPVX (histsv);
		611
		612	Zero (tmphist, sizeof (tmphist), char);
		613
		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
		625	for (j = 0; j < HISTSIZE; ++j)
		626	hist[j] = (float)tmphist[j] / (len + 1e-30);
		627
		628	av_push (result, histsv);
		629	}
		630
		631	RETVAL = newRV_noinc ((SV *)result);
		632	}
		633	OUTPUT:
		634	RETVAL
		635
		636

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Comparing CV/CV.xs (file contents): Revision 1.5 by root, Sat Nov 8 22:18:50 2003 UTC vs. Revision 1.27 by root, Sun Aug 21 02:23:52 2005 UTC

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Comparing CV/CV.xs (file contents):
Revision 1.5 by root, Sat Nov 8 22:18:50 2003 UTC vs.
Revision 1.27 by root, Sun Aug 21 02:23:52 2005 UTC