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

Comparing CV/CV.xs (file contents):
Revision 1.4 by root, Sat Nov 8 18:22:21 2003 UTC vs.
Revision 1.29 by root, Sat Sep 24 01:25:17 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
		16	#define IW 80 /* MUST match Schnauer.pm! */
		17	#define IH 60 /* MUST match Schnauer.pm! */
		18
		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	}
		69
10	static guint32 a85_val;	70	static guint32 a85_val;
11	static guint a85_cnt;	71	static guint a85_cnt;
12	static guchar a85_buf[80], *a85_ptr;	72	static guchar a85_buf[LINELENGTH], *a85_ptr;
13		73
14	static void	74	static void
15	a85_init (void)	75	a85_init (void)
16	{	76	{
17	a85_cnt = 4;	77	a85_cnt = 4;
47	}	107	}
48	}	108	}
49		109
50	}	110	}
51		111
		112	static void
52	a85_finish (PerlIO *fp)	113	a85_finish (PerlIO *fp)
53	{	114	{
54	while (a85_cnt != 4)	115	while (a85_cnt != 4)
55	a85_push (fp, 0);	116	a85_push (fp, 0);
56		117
…		…
59	*a85_ptr++ = '\n';	120	*a85_ptr++ = '\n';
60		121
61	PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);	122	PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);
62	}	123	}
63		124
		125	/////////////////////////////////////////////////////////////////////////////
		126
64	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::ImageWindow	127	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
65		128
66	PROTOTYPES: ENABLE	129	PROTOTYPES: ENABLE
67		130
		131	# missing function in perl. really :)
		132	int
		133	common_prefix_length (a, b)
		134	unsigned char a = (unsigned char )SvPVutf8_nolen ($arg);
		135	unsigned char b = (unsigned char )SvPVutf8_nolen ($arg);
		136	CODE:
		137	RETVAL = 0;
		138
		139	while (a == b && *a)
		140	{
		141	RETVAL += (*a & 0xc0) != 0x80;
		142	a++, b++;
		143	}
		144
		145	OUTPUT:
		146	RETVAL
		147
		148	# missing in Gtk2 perl module
		149
		150	gboolean
		151	gdk_net_wm_supports (GdkAtom property)
		152	CODE:
		153	#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)
		154	RETVAL = gdk_net_wm_supports (property);
		155	#else
		156	RETVAL = 0;
		157	#endif
		158	OUTPUT:
		159	RETVAL
		160
68	GdkPixbuf_noinc *	161	GdkPixbuf_noinc *
69	transpose (GdkPixbuf *pb)	162	dealpha_expose (GdkPixbuf *pb)
70	CODE:	163	CODE:
71	{	164	{
72	int w = gdk_pixbuf_get_width (pb);	165	int w = gdk_pixbuf_get_width (pb);
73	int h = gdk_pixbuf_get_height (pb);	166	int h = gdk_pixbuf_get_height (pb);
74	int bpp = gdk_pixbuf_get_has_alpha (pb) ? 4 : 3;	167	int bpp = gdk_pixbuf_get_n_channels (pb);
75	int x, y, i;	168	int x, y, i;
76	guchar src = gdk_pixbuf_get_pixels (pb), dst;	169	guchar src = gdk_pixbuf_get_pixels (pb), dst;
77	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;	170	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;
78		171
79	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w);	172	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);
80		173
81	dst = gdk_pixbuf_get_pixels (RETVAL);	174	dst = gdk_pixbuf_get_pixels (RETVAL);
82	dstr = gdk_pixbuf_get_rowstride (RETVAL);	175	dstr = gdk_pixbuf_get_rowstride (RETVAL);
83		176
84	for (y = 0; y < h; y++)
85	for (x = 0; x < w; x++)	177	for (x = 0; x < w; x++)
		178	for (y = 0; y < h; y++)
86	for (i = 0; i < bpp; i++)	179	for (i = 0; i < 3; i++)
87	dst[y * bpp + x * dstr + i] = src[x * bpp + y * sstr + i];	180	dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i];
88	}	181	}
89	OUTPUT:	182	OUTPUT:
90	RETVAL	183	RETVAL
91		184
92	GdkPixbuf_noinc *	185	GdkPixbuf_noinc *
93	flop (GdkPixbuf *pb)	186	rotate (GdkPixbuf *pb, int angle)
94	CODE:	187	CODE:
95	{	188	RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE
96	int w = gdk_pixbuf_get_width (pb);	189	: angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE
97	int h = gdk_pixbuf_get_height (pb);	190	: angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN
98	int bpp = gdk_pixbuf_get_has_alpha (pb) ? 4 : 3;	191	: angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE
99	int x, y, i;	192	: angle);
100	guchar src = gdk_pixbuf_get_pixels (pb), dst;	193	OUTPUT:
101	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;	194	RETVAL
102		195
103	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h);	196	GdkPixbuf_noinc *
		197	load_jpeg (SV *path, int thumbnail=0)
		198	CODE:
		199	{
		200	struct jpeg_decompress_struct cinfo;
		201	struct jpg_err_mgr jerr;
		202	guchar *data;
		203	int rs;
		204	FILE *fp;
		205	volatile GdkPixbuf *pb = 0;
		206	gchar *filename;
104		207
		208	RETVAL = 0;
		209
		210	filename = g_filename_from_utf8 (SvPVutf8_nolen (path), -1, 0, 0, 0);
		211	fp = fopen (filename, "rb");
		212	g_free (filename);
		213
		214	if (!fp)
		215	XSRETURN_UNDEF;
		216
		217	cinfo.err = jpeg_std_error (&jerr.err);
		218
		219	jerr.err.error_exit = cv_error_exit;
		220	jerr.err.output_message = cv_error_output;
		221
		222	if ((rs = setjmp (jerr.setjmp_buffer)))
		223	{
		224	fclose (fp);
		225	jpeg_destroy_decompress (&cinfo);
		226
		227	if (pb)
		228	g_object_unref ((gpointer)pb);
		229
		230	XSRETURN_UNDEF;
		231	}
		232
		233	jpeg_create_decompress (&cinfo);
		234
		235	jpeg_stdio_src (&cinfo, fp);
		236	jpeg_read_header (&cinfo, TRUE);
		237
		238	cinfo.dct_method = JDCT_DEFAULT;
		239	cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */
		240	cinfo.do_block_smoothing = FALSE;
		241	cinfo.out_color_space = JCS_RGB;
		242	cinfo.quantize_colors = FALSE;
		243
		244	cinfo.scale_num = 1;
		245	cinfo.scale_denom = 1;
		246
		247	jpeg_calc_output_dimensions (&cinfo);
		248
		249	if (thumbnail)
		250	{
		251	cinfo.dct_method = JDCT_FASTEST;
		252	cinfo.do_fancy_upsampling = FALSE;
		253
		254	while (cinfo.scale_denom < 8
		255	&& cinfo.output_width >= IW*4
		256	&& cinfo.output_height >= IH*4)
		257	{
		258	cinfo.scale_denom <<= 1;
		259	jpeg_calc_output_dimensions (&cinfo);
		260	}
		261	}
		262
		263	pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height);
		264	if (!RETVAL)
		265	longjmp (jerr.setjmp_buffer, 2);
		266
105	dst = gdk_pixbuf_get_pixels (RETVAL);	267	data = gdk_pixbuf_get_pixels (RETVAL);
106	dstr = gdk_pixbuf_get_rowstride (RETVAL);	268	rs = gdk_pixbuf_get_rowstride (RETVAL);
107		269
108	for (y = 0; y < h; y++)	270	if (cinfo.output_components != 3)
109	for (x = 0; x < w; x++)	271	longjmp (jerr.setjmp_buffer, 3);
110	for (i = 0; i < bpp; i++)	272
111	dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i];	273	jpeg_start_decompress (&cinfo);
		274
		275	while (cinfo.output_scanline < cinfo.output_height)
		276	{
		277	int remaining = cinfo.output_height - cinfo.output_scanline;
		278	JSAMPROW rp[4];
		279
		280	rp [0] = data + cinfo.output_scanline * rs;
		281	rp [1] = (guchar *)rp [0] + rs;
		282	rp [2] = (guchar *)rp [1] + rs;
		283	rp [3] = (guchar *)rp [2] + rs;
		284
		285	jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4);
		286	}
		287
		288	jpeg_finish_decompress (&cinfo);
		289	fclose (fp);
		290	jpeg_destroy_decompress (&cinfo);
112	}	291	}
113	OUTPUT:	292	OUTPUT:
114	RETVAL	293	RETVAL
		294
		295	#############################################################################
115		296
116	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer	297	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer
117		298
		299	SV *
		300	foldcase (SV *pathsv)
		301	PROTOTYPE: $
		302	CODE:
		303	{
		304	STRLEN plen;
		305	U8 path = (U8 )SvPVutf8 (pathsv, plen);
		306	U8 *pend = path + plen;
		307	U8 dst [plen * 6 * 3], *dstp = dst;
		308
		309	while (path < pend)
		310	{
		311	U8 ch = *path;
		312
		313	if (ch >= 'a' && ch <= 'z')
		314	dstp++ = path++;
		315	else if (ch >= '0' && ch <= '9')
		316	{
		317	STRLEN el, nl = 0;
		318	while (path >= '0' && path <= '9' && path < pend)
		319	path++, nl++;
		320
		321	for (el = nl; el < 6; el++)
		322	*dstp++ = '0';
		323
		324	memcpy (dstp, path - nl, nl);
		325	dstp += nl;
		326	}
		327	else
		328	{
		329	STRLEN cl;
		330	to_utf8_fold (path, dstp, &cl);
		331	dstp += cl;
		332	path += is_utf8_char (path);
		333	}
		334	}
		335
		336	RETVAL = newSVpvn ((const char *)dst, dstp - dst);
		337	}
		338	OUTPUT:
		339	RETVAL
		340
118	GdkPixbuf_noinc *	341	GdkPixbuf_noinc *
119	p7_to_pb (int w, int h, guchar *src)	342	p7_to_pb (int w, int h, SV *src_sv)
		343	PROTOTYPE: @
120	CODE:	344	CODE:
121	{	345	{
122	int x, y;	346	int x, y;
123	guchar dst, d;	347	guchar dst, d;
124	int dstr;	348	int dstr;
		349	guchar src = (guchar )SvPVbyte_nolen (src_sv);
125		350
126	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);	351	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);
127	dst = gdk_pixbuf_get_pixels (RETVAL);	352	dst = gdk_pixbuf_get_pixels (RETVAL);
128	dstr = gdk_pixbuf_get_rowstride (RETVAL);	353	dstr = gdk_pixbuf_get_rowstride (RETVAL);
129		354
…		…
138	}	363	}
139	}	364	}
140	OUTPUT:	365	OUTPUT:
141	RETVAL	366	RETVAL
142		367
		368	#############################################################################
		369
		370	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript
		371
		372	void
		373	dump_ascii85 (PerlIO fp, GdkPixbuf pb)
		374	CODE:
		375	{
		376	int w = gdk_pixbuf_get_width (pb);
		377	int h = gdk_pixbuf_get_height (pb);
		378	int x, y, i;
		379	guchar *dst;
		380	int bpp = gdk_pixbuf_get_n_channels (pb);
		381	guchar *src = gdk_pixbuf_get_pixels (pb);
		382	int sstr = gdk_pixbuf_get_rowstride (pb);
		383
		384	a85_init ();
		385
		386	for (y = 0; y < h; y++)
		387	for (x = 0; x < w; x++)
		388	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
		389	a85_push (fp, src [x * bpp + y * sstr + i]);
		390
		391	a85_finish (fp);
		392	}
		393
		394	void
		395	dump_binary (PerlIO fp, GdkPixbuf pb)
		396	CODE:
		397	{
		398	int w = gdk_pixbuf_get_width (pb);
		399	int h = gdk_pixbuf_get_height (pb);
		400	int x, y, i;
		401	guchar *dst;
		402	int bpp = gdk_pixbuf_get_n_channels (pb);
		403	guchar *src = gdk_pixbuf_get_pixels (pb);
		404	int sstr = gdk_pixbuf_get_rowstride (pb);
		405
		406	for (y = 0; y < h; y++)
		407	for (x = 0; x < w; x++)
		408	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
		409	PerlIO_putc (fp, src [x * bpp + y * sstr + i]);
		410	}
		411
		412	#############################################################################
		413
		414	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
		415
143	SV *	416	SV *
144	pb_to_p7 (GdkPixbuf *pb)	417	pb_to_hv84 (GdkPixbuf *pb)
145	CODE:	418	CODE:
146	{	419	{
147	int w = gdk_pixbuf_get_width (pb);	420	int w = gdk_pixbuf_get_width (pb);
148	int h = gdk_pixbuf_get_height (pb);	421	int h = gdk_pixbuf_get_height (pb);
149	int x, y;	422	int x, y;
150	guchar *dst;	423	guchar *dst;
151	int bpp = gdk_pixbuf_get_has_alpha (pb) ? 4 : 3;	424	int bpp = gdk_pixbuf_get_n_channels (pb);
152	guchar *src = gdk_pixbuf_get_pixels (pb);	425	guchar *src = gdk_pixbuf_get_pixels (pb);
153	int sstr = gdk_pixbuf_get_rowstride (pb);	426	int sstr = gdk_pixbuf_get_rowstride (pb);
154		427
155	RETVAL = newSV (w * h);	428	RETVAL = newSV (6 * 8 * 12 / 8);
156	SvPOK_only (RETVAL);	429	SvPOK_only (RETVAL);
157	SvCUR_set (RETVAL, w * h);	430	SvCUR_set (RETVAL, 6 * 8 * 12 / 8);
158		431
159	dst = SvPVX (RETVAL);	432	dst = (guchar *)SvPVX (RETVAL);
		433
		434	/* some primitive error distribution + random dithering */
160		435
161	for (y = 0; y < h; y++)	436	for (y = 0; y < h; y++)
162	{	437	{
163	/* use a very primitive form of error distribution. */	438	guchar p = src + y sstr;
164	int er = 0, eg = 0, eb = 0;
165		439
166	for (x = 0; x < w; x++)	440	for (x = 0; x < w; x += 2)
167	{	441	{
168	int r, g, b;	442	unsigned int r, g, b, h, s, v, H, V1, V2;
169	guchar p = src + x bpp + y * sstr;
170		443
171	r = ((p[0] + er) * 7 + 128) / 255;	444	if (bpp == 3)
172	g = ((p[1] + eg) * 7 + 128) / 255;	445	r = p++, g = p++, b = *p++;
173	b = ((p[2] + eb) * 3 + 128) / 255;	446	else if (bpp == 1)
		447	r = g = b = *p++;
		448	else
		449	abort ();
174		450
175	r = r > 7 ? 7 : r < 0 ? 0 : r;	451	rgb_to_hsv (r, g, b, &h, &s, &v);
176	g = g > 7 ? 7 : g < 0 ? 0 : g;
177	b = b > 3 ? 3 : b < 0 ? 0 : b;
178		452
179	er += p[0] - (r * 255 + 4) / 7;	453	H = (h * 15 / 255) << 4;
180	eg += p[1] - (g * 255 + 4) / 7;	454	V1 = v;
181	eb += p[2] - (b * 255 + 2) / 3;
182		455
183	*dst++ = r << 5 \| g << 2 \| b;	456	if (bpp == 3)
		457	r = p++, g = p++, b = *p++;
		458	else if (bpp == 1)
		459	r = g = b = *p++;
		460	else
		461	abort ();
		462
		463	rgb_to_hsv (r, g, b, &h, &s, &v);
		464
		465	H \|= h * 15 / 255;
		466	V2 = v;
		467
		468	*dst++ = H;
		469	*dst++ = V1;
		470	*dst++ = V2;
184	}	471	}
185	}	472	}
186	}	473	}
187	OUTPUT:	474	OUTPUT:
188	RETVAL	475	RETVAL
189		476
		477	SV *
		478	hv84_to_av (unsigned char *hv84)
		479	CODE:
		480	{
		481	int i = 72 / 3;
		482	AV *av = newAV ();
		483
		484	RETVAL = (SV )newRV_noinc ((SV )av);
		485	while (i--)
		486	{
		487	int h = *hv84++;
		488	int v1 = *hv84++;
		489	int v2 = *hv84++;
		490
		491	av_push (av, newSViv (v1));
		492	av_push (av, newSViv ((h >> 4) * 255 / 15));
		493	av_push (av, newSViv (v2));
		494	av_push (av, newSViv ((h & 15) * 255 / 15));
		495	}
		496	}
		497	OUTPUT:
		498	RETVAL
		499
		500	#############################################################################
		501
190	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript	502	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster
191		503
192	void	504	SV *
193	dump_pb (PerlIO fp, GdkPixbuf pb)	505	make_histograms (SV *ar)
194	CODE:	506	CODE:
195	{	507	{
196	int w = gdk_pixbuf_get_width (pb);	508	int i;
197	int h = gdk_pixbuf_get_height (pb);	509	AV av, result;
198	int x, y, i;
199	guchar *dst;
200	int bpp = gdk_pixbuf_get_has_alpha (pb) ? 4 : 3;
201	guchar *src = gdk_pixbuf_get_pixels (pb);
202	int sstr = gdk_pixbuf_get_rowstride (pb);
203		510
204	a85_init ();	511	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)
		512	croak ("Not an array ref as first argument to make_histogram");
205		513
206	for (y = 0; y < h; y++)	514	av = (AV *) SvRV (ar);
207	for (x = 0; x < w; x++)	515	result = newAV ();
		516
		517	for (i = 0; i <= av_len (av); ++i)
		518	{
		519	const int HISTSIZE = 64;
		520
		521	int j;
		522	SV sv = av_fetch (av, i, 1);
		523	STRLEN len;
		524	char *buf = SvPVbyte (sv, len);
		525
		526	int tmphist[HISTSIZE];
		527	float *hist;
		528
		529	SV histsv = newSV (HISTSIZE sizeof (float) + 1);
		530	SvPOK_on (histsv);
		531	SvCUR_set (histsv, HISTSIZE * sizeof (float));
		532	hist = (float *)SvPVX (histsv);
		533
		534	Zero (tmphist, sizeof (tmphist), char);
		535
		536	for (j = len; j--; )
		537	{
		538	unsigned int idx
		539	= ((*buf & 0xc0) >> 2)
		540	\| ((*buf & 0x18) >> 1)
		541	\| (*buf & 0x03);
		542
		543	++tmphist[idx];
		544	++buf;
		545	}
		546
208	for (i = 0; i < 3; i++)	547	for (j = 0; j < HISTSIZE; ++j)
209	a85_push (fp, src [x * bpp + y * sstr + i]);	548	hist[j] = (float)tmphist[j] / (len + 1e-30);
210		549
211	a85_finish (fp);	550	av_push (result, histsv);
212	}	551	}
213		552
		553	RETVAL = newRV_noinc ((SV *)result);
		554	}
		555	OUTPUT:
		556	RETVAL
214		557
215		558
216

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Comparing CV/CV.xs (file contents): Revision 1.4 by root, Sat Nov 8 18:22:21 2003 UTC vs. Revision 1.29 by root, Sat Sep 24 01:25:17 2005 UTC

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Comparing CV/CV.xs (file contents):
Revision 1.4 by root, Sat Nov 8 18:22:21 2003 UTC vs.
Revision 1.29 by root, Sat Sep 24 01:25:17 2005 UTC