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

Comparing CV/CV.xs (file contents):
Revision 1.7 by root, Wed Nov 12 23:54:54 2003 UTC vs.
Revision 1.26 by root, Sun Aug 21 02:18:30 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)
13		20
14	#define LINELENGTH 240	21	#define LINELENGTH 240
15		22
16	#define ELLIPSIS "\xe2\x80\xa6"	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	}
17		69
18	static guint32 a85_val;	70	static guint32 a85_val;
19	static guint a85_cnt;	71	static guint a85_cnt;
20	static guchar a85_buf[LINELENGTH], *a85_ptr;	72	static guchar a85_buf[LINELENGTH], *a85_ptr;
21		73
55	}	107	}
56	}	108	}
57		109
58	}	110	}
59		111
		112	static void
60	a85_finish (PerlIO *fp)	113	a85_finish (PerlIO *fp)
61	{	114	{
62	while (a85_cnt != 4)	115	while (a85_cnt != 4)
63	a85_push (fp, 0);	116	a85_push (fp, 0);
64		117
…		…
69	PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);	122	PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);
70	}	123	}
71		124
72	/////////////////////////////////////////////////////////////////////////////	125	/////////////////////////////////////////////////////////////////////////////
73		126
74	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::ImageWindow	127	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
75		128
76	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	fprintf (stderr, "new %d %d\n", w, h);
		151	int bpp = gdk_pixbuf_get_n_channels (pb);
		152	int x, y, i;
		153	guchar src = gdk_pixbuf_get_pixels (pb), dst;
		154	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;
		155
		156	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);
		157
		158	dst = gdk_pixbuf_get_pixels (RETVAL);
		159	dstr = gdk_pixbuf_get_rowstride (RETVAL);
		160
		161	for (x = 0; x < w; x++)
		162	for (y = 0; y < h; y++)
		163	for (i = 0; i < 3; i++)
		164	dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i];
		165	}
		166	OUTPUT:
		167	RETVAL
77		168
78	GdkPixbuf_noinc *	169	GdkPixbuf_noinc *
79	transpose (GdkPixbuf *pb)	170	transpose (GdkPixbuf *pb)
80	CODE:	171	CODE:
81	{	172	{
…		…
121	dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i];	212	dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i];
122	}	213	}
123	OUTPUT:	214	OUTPUT:
124	RETVAL	215	RETVAL
125		216
		217	GdkPixbuf_noinc *
		218	load_jpeg (SV *path, int thumbnail=0)
		219	CODE:
		220	{
		221	struct jpeg_decompress_struct cinfo;
		222	struct jpg_err_mgr jerr;
		223	guchar *data;
		224	int rs;
		225	FILE *fp;
		226	volatile GdkPixbuf *pb = 0;
		227	gchar *filename;
		228
		229	RETVAL = 0;
		230
		231	filename = g_filename_from_utf8 (SvPVutf8_nolen (path), -1, 0, 0, 0);
		232	fp = fopen (filename, "rb");
		233	g_free (filename);
		234
		235	if (!fp)
		236	XSRETURN_UNDEF;
		237
		238	cinfo.err = jpeg_std_error (&jerr.err);
		239
		240	jerr.err.error_exit = cv_error_exit;
		241	jerr.err.output_message = cv_error_output;
		242
		243	if ((rs = setjmp (jerr.setjmp_buffer)))
		244	{
		245	fclose (fp);
		246	jpeg_destroy_decompress (&cinfo);
		247
		248	if (pb)
		249	g_object_unref ((gpointer)pb);
		250
		251	XSRETURN_UNDEF;
		252	}
		253
		254	jpeg_create_decompress (&cinfo);
		255
		256	jpeg_stdio_src (&cinfo, fp);
		257	jpeg_read_header (&cinfo, TRUE);
		258
		259	cinfo.dct_method = JDCT_DEFAULT;
		260	cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */
		261	cinfo.do_block_smoothing = FALSE;
		262	cinfo.out_color_space = JCS_RGB;
		263	cinfo.quantize_colors = FALSE;
		264
		265	cinfo.scale_num = 1;
		266	cinfo.scale_denom = 1;
		267
		268	jpeg_calc_output_dimensions (&cinfo);
		269
		270	if (thumbnail)
		271	{
		272	cinfo.dct_method = JDCT_FASTEST;
		273	cinfo.do_fancy_upsampling = FALSE;
		274
		275	while (cinfo.scale_denom < 8
		276	&& cinfo.output_width >= IW*4
		277	&& cinfo.output_height >= IH*4)
		278	{
		279	cinfo.scale_denom <<= 1;
		280	jpeg_calc_output_dimensions (&cinfo);
		281	}
		282	}
		283
		284	pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height);
		285	if (!RETVAL)
		286	longjmp (jerr.setjmp_buffer, 2);
		287
		288	data = gdk_pixbuf_get_pixels (RETVAL);
		289	rs = gdk_pixbuf_get_rowstride (RETVAL);
		290
		291	if (cinfo.output_components != 3)
		292	longjmp (jerr.setjmp_buffer, 3);
		293
		294	jpeg_start_decompress (&cinfo);
		295
		296	while (cinfo.output_scanline < cinfo.output_height)
		297	{
		298	int remaining = cinfo.output_height - cinfo.output_scanline;
		299	JSAMPROW rp[4];
		300
		301	rp [0] = data + cinfo.output_scanline * rs;
		302	rp [1] = (guchar *)rp [0] + rs;
		303	rp [2] = (guchar *)rp [1] + rs;
		304	rp [3] = (guchar *)rp [2] + rs;
		305
		306	jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4);
		307	}
		308
		309	jpeg_finish_decompress (&cinfo);
		310	fclose (fp);
		311	jpeg_destroy_decompress (&cinfo);
		312	}
		313	OUTPUT:
		314	RETVAL
		315
126	#############################################################################	316	#############################################################################
127		317
128	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer	318	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer
129		319
		320	SV *
		321	foldcase (SV *pathsv)
		322	PROTOTYPE: $
		323	CODE:
		324	{
		325	STRLEN plen;
		326	U8 path = (U8 )SvPVutf8 (pathsv, plen);
		327	U8 *pend = path + plen;
		328	U8 dst [plen * 6 * 3], *dstp = dst;
		329
		330	while (path < pend)
		331	{
		332	U8 ch = *path;
		333
		334	if (ch >= 'a' && ch <= 'z')
		335	dstp++ = path++;
		336	else if (ch >= '0' && ch <= '9')
		337	{
		338	STRLEN el, nl = 0;
		339	while (path >= '0' && path <= '9' && path < pend)
		340	path++, nl++;
		341
		342	for (el = nl; el < 6; el++)
		343	*dstp++ = '0';
		344
		345	memcpy (dstp, path - nl, nl);
		346	dstp += nl;
		347	}
		348	else
		349	{
		350	STRLEN cl;
		351	to_utf8_fold (path, dstp, &cl);
		352	dstp += cl;
		353	path += is_utf8_char (path);
		354	}
		355	}
		356
		357	RETVAL = newSVpvn ((const char *)dst, dstp - dst);
		358	}
		359	OUTPUT:
		360	RETVAL
		361
130	GdkPixbuf_noinc *	362	GdkPixbuf_noinc *
131	p7_to_pb (int w, int h, guchar *src)	363	p7_to_pb (int w, int h, SV *src_sv)
		364	PROTOTYPE: @
132	CODE:	365	CODE:
133	{	366	{
134	int x, y;	367	int x, y;
135	guchar dst, d;	368	guchar dst, d;
136	int dstr;	369	int dstr;
		370	guchar src = (guchar )SvPVbyte_nolen (src_sv);
137		371
138	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);	372	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);
139	dst = gdk_pixbuf_get_pixels (RETVAL);	373	dst = gdk_pixbuf_get_pixels (RETVAL);
140	dstr = gdk_pixbuf_get_rowstride (RETVAL);	374	dstr = gdk_pixbuf_get_rowstride (RETVAL);
141		375
…		…
168		402
169	RETVAL = newSV (w * h);	403	RETVAL = newSV (w * h);
170	SvPOK_only (RETVAL);	404	SvPOK_only (RETVAL);
171	SvCUR_set (RETVAL, w * h);	405	SvCUR_set (RETVAL, w * h);
172		406
173	dst = SvPVX (RETVAL);	407	dst = (guchar *)SvPVX (RETVAL);
174		408
175	memset (Er, 0, sizeof (int) * IW);	409	memset (Er, 0, sizeof (int) * IW);
176	memset (Eg, 0, sizeof (int) * IW);	410	memset (Eg, 0, sizeof (int) * IW);
177	memset (Eb, 0, sizeof (int) * IW);	411	memset (Eb, 0, sizeof (int) * IW);
178		412
…		…
185	for (x = 0; x < w; x++)	419	for (x = 0; x < w; x++)
186	{	420	{
187	int r, g, b;	421	int r, g, b;
188	guchar p = src + x bpp + y * sstr;	422	guchar p = src + x bpp + y * sstr;
189		423
190	r = ((p[0] + er + Er[x]) * 7 + 128) / 255;	424	r = ((p[0] + er + Er[x]) * 7 + (RAND & 127) + 64) / 255;
191	g = ((p[1] + eg + Eg[x]) * 7 + 128) / 255;	425	g = ((p[1] + eg + Eg[x]) * 7 + (RAND & 127) + 64) / 255;
192	b = ((p[2] + eb + Eb[x]) * 3 + 128) / 255;	426	b = ((p[2] + eb + Eb[x]) * 3 + (RAND & 127) + 64) / 255;
193		427
194	r = r > 7 ? 7 : r < 0 ? 0 : r;	428	r = r > 7 ? 7 : r < 0 ? 0 : r;
195	g = g > 7 ? 7 : g < 0 ? 0 : g;	429	g = g > 7 ? 7 : g < 0 ? 0 : g;
196	b = b > 3 ? 3 : b < 0 ? 0 : b;	430	b = b > 3 ? 3 : b < 0 ? 0 : b;
197		431
198	er += p[0] - (r * 255 + 4) / 7;	432	er += p[0] - (r * 255 + 4) / 7;
199	eg += p[1] - (g * 255 + 4) / 7;	433	eg += p[1] - (g * 255 + 4) / 7;
200	eb += p[2] - (b * 255 + 2) / 3;	434	eb += p[2] - (b * 255 + 2) / 3;
201		435
202	Er[x] = er / 2; er -= er / 2 + RAND % 7 - 3;	436	Er[x] = er >> 1; er -= (er + 1) >> 1;
203	Eg[x] = eg / 2; eg -= eg / 2 + RAND % 7 - 3;	437	Eg[x] = eg >> 1; eg -= (eg + 1) >> 1;
204	Eb[x] = eb / 2; eb -= eb / 2 + RAND % 7 - 3;	438	Eb[x] = eb >> 1; eb -= (eb + 1) >> 1;
205		439
206	*dst++ = r << 5 \| g << 2 \| b;	440	*dst++ = r << 5 \| g << 2 \| b;
207	}	441	}
208	}	442	}
209	}	443	}
…		…
252	for (x = 0; x < w; x++)	486	for (x = 0; x < w; x++)
253	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)	487	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
254	PerlIO_putc (fp, src [x * bpp + y * sstr + i]);	488	PerlIO_putc (fp, src [x * bpp + y * sstr + i]);
255	}	489	}
256		490
		491	#############################################################################
257		492
		493	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
258		494
		495	SV *
		496	pb_to_hv84 (GdkPixbuf *pb)
		497	CODE:
		498	{
		499	int w = gdk_pixbuf_get_width (pb);
		500	int h = gdk_pixbuf_get_height (pb);
		501	int x, y;
		502	guchar *dst;
		503	int bpp = gdk_pixbuf_get_n_channels (pb);
		504	guchar *src = gdk_pixbuf_get_pixels (pb);
		505	int sstr = gdk_pixbuf_get_rowstride (pb);
259		506
		507	RETVAL = newSV (6 * 8 * 12 / 8);
		508	SvPOK_only (RETVAL);
		509	SvCUR_set (RETVAL, 6 * 8 * 12 / 8);
		510
		511	dst = (guchar *)SvPVX (RETVAL);
		512
		513	/* some primitive error distribution + random dithering */
		514
		515	for (y = 0; y < h; y++)
		516	{
		517	guchar p = src + y sstr;
		518
		519	for (x = 0; x < w; x += 2)
		520	{
		521	unsigned int r, g, b, h, s, v, H, V1, V2;
		522
		523	if (bpp == 3)
		524	r = p++, g = p++, b = *p++;
		525	else if (bpp == 1)
		526	r = g = b = *p++;
		527	else
		528	abort ();
		529
		530	rgb_to_hsv (r, g, b, &h, &s, &v);
		531
		532	H = (h * 15 / 255) << 4;
		533	V1 = v;
		534
		535	if (bpp == 3)
		536	r = p++, g = p++, b = *p++;
		537	else if (bpp == 1)
		538	r = g = b = *p++;
		539	else
		540	abort ();
		541
		542	rgb_to_hsv (r, g, b, &h, &s, &v);
		543
		544	H \|= h * 15 / 255;
		545	V2 = v;
		546
		547	*dst++ = H;
		548	*dst++ = V1;
		549	*dst++ = V2;
		550	}
		551	}
		552	}
		553	OUTPUT:
		554	RETVAL
		555
		556	SV *
		557	hv84_to_av (unsigned char *hv84)
		558	CODE:
		559	{
		560	int i = 72 / 3;
		561	AV *av = newAV ();
		562
		563	RETVAL = (SV )newRV_noinc ((SV )av);
		564	while (i--)
		565	{
		566	int h = *hv84++;
		567	int v1 = *hv84++;
		568	int v2 = *hv84++;
		569
		570	av_push (av, newSViv (v1));
		571	av_push (av, newSViv ((h >> 4) * 255 / 15));
		572	av_push (av, newSViv (v2));
		573	av_push (av, newSViv ((h & 15) * 255 / 15));
		574	}
		575	}
		576	OUTPUT:
		577	RETVAL
		578
		579	#############################################################################
		580
		581	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster
		582
		583	SV *
		584	make_histograms (SV *ar)
		585	CODE:
		586	{
		587	int i;
		588	AV av, result;
		589
		590	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)
		591	croak ("Not an array ref as first argument to make_histogram");
		592
		593	av = (AV *) SvRV (ar);
		594	result = newAV ();
		595
		596	for (i = 0; i <= av_len (av); ++i)
		597	{
		598	const int HISTSIZE = 64;
		599
		600	int j;
		601	SV sv = av_fetch (av, i, 1);
		602	STRLEN len;
		603	char *buf = SvPVbyte (sv, len);
		604
		605	int tmphist[HISTSIZE];
		606	float *hist;
		607
		608	SV histsv = newSV (HISTSIZE sizeof (float) + 1);
		609	SvPOK_on (histsv);
		610	SvCUR_set (histsv, HISTSIZE * sizeof (float));
		611	hist = (float *)SvPVX (histsv);
		612
		613	Zero (tmphist, sizeof (tmphist), char);
		614
		615	for (j = len; j--; )
		616	{
		617	unsigned int idx
		618	= ((*buf & 0xc0) >> 2)
		619	\| ((*buf & 0x18) >> 1)
		620	\| (*buf & 0x03);
		621
		622	++tmphist[idx];
		623	++buf;
		624	}
		625
		626	for (j = 0; j < HISTSIZE; ++j)
		627	hist[j] = (float)tmphist[j] / (len + 1e-30);
		628
		629	av_push (result, histsv);
		630	}
		631
		632	RETVAL = newRV_noinc ((SV *)result);
		633	}
		634	OUTPUT:
		635	RETVAL
		636
		637

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Comparing CV/CV.xs (file contents): Revision 1.7 by root, Wed Nov 12 23:54:54 2003 UTC vs. Revision 1.26 by root, Sun Aug 21 02:18:30 2005 UTC

Diff Legend

Comparing CV/CV.xs (file contents):
Revision 1.7 by root, Wed Nov 12 23:54:54 2003 UTC vs.
Revision 1.26 by root, Sun Aug 21 02:18:30 2005 UTC