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

Comparing CV/CV.xs (file contents):
Revision 1.17 by root, Wed Jul 20 06:20:36 2005 UTC vs.
Revision 1.62 by root, Sun Jul 25 11:32:46 2021 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>
5	#include <setjmp.h>	6	#include <setjmp.h>
		7	#include <math.h>
		8
		9	#include <magic.h>
6		10
7	#include <jpeglib.h>	11	#include <jpeglib.h>
		12	#include <jerror.h>
		13
		14	#include <glib.h>
		15	#include <gtk/gtk.h>
		16	#include <gdk/gdkx.h>
8	#include <gdk-pixbuf/gdk-pixbuf.h>	17	#include <gdk-pixbuf/gdk-pixbuf.h>
9		18
10	#include <gperl.h>	19	#include <gperl.h>
11	#include <gtk2perl.h>	20	#include <gtk2perl.h>
12		21
		22	#include <assert.h>
		23
		24	#if WEBP
		25	#include <webp/demux.h>
		26	#include <webp/decode.h>
		27	#endif
		28
		29	#if JXL
		30	#include <jxl/decode.h>
		31	#include "jxl/thread_parallel_runner.h"
		32	#endif
		33
		34	#include "perlmulticore.h"
		35
13	#define IW 80 /* MUST match Schnauer.pm! */	36	#define IW 80 /* MUST match Schnauzer.pm! */
14	#define IH 60 /* MUST match Schnauer.pm! */	37	#define IH 60 /* MUST match Schnauzer.pm! */
15
16	#define RAND (seed = (seed + 7141) * 54773 % 134456)
17		38
18	#define LINELENGTH 240	39	#define LINELENGTH 240
19		40
20	#define ELLIPSIS "\xe2\x80\xa6"	41	#define ELLIPSIS "\xe2\x80\xa6"
		42
		43	typedef char *octet_string;
		44
		45	static magic_t magic_cookie[2]; /* !mime, mime */
21		46
22	struct jpg_err_mgr	47	struct jpg_err_mgr
23	{	48	{
24	struct jpeg_error_mgr err;	49	struct jpeg_error_mgr err;
25	jmp_buf setjmp_buffer;	50	jmp_buf setjmp_buffer;
26	};	51	};
27		52
28	static void	53	static void
29	cv_error_exit (j_common_ptr cinfo)	54	cv_error_exit (j_common_ptr cinfo)
30	{	55	{
		56	cinfo->err->output_message (cinfo);
31	longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99);	57	longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99);
32	}	58	}
33		59
34	static void	60	static void
35	cv_error_output (j_common_ptr cinfo)	61	cv_error_output (j_common_ptr cinfo)
36	{	62	{
		63	char msg[JMSG_LENGTH_MAX];
		64
		65	cinfo->err->format_message (cinfo, msg);
		66
		67	fprintf (stderr, "JPEG decoding error: %s\n", msg);
37	return;	68	return;
38	}	69	}
39		70
40	static void	71	static void
41	rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b,	72	rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b,
62		93
63	*h &= 255;	94	*h &= 255;
64	}	95	}
65	}	96	}
66		97
		98	struct feature {
		99	float v1, v2, v3; // mean, square, cube
		100	int n;
		101	};
		102
		103	static void
		104	feature_init (struct feature *f)
		105	{
		106	f->v1 = 0.;
		107	f->v2 = 0.;
		108	f->v3 = 0.;
		109	f->n = 0;
		110	}
		111
		112	// didn't find an algorithm to neatly do mean, variance and skew in one pass.
		113	// elmex ist schuld.
		114	static void
		115	feature_update_pass_1 (struct feature *f, unsigned int v)
		116	{
		117	f->v1 += v;
		118	f->n += 1;
		119	}
		120
		121	static void
		122	feature_finish_pass_1 (struct feature *f)
		123	{
		124	if (f->n < 1)
		125	return;
		126
		127	f->v1 /= f->n;
		128	}
		129
		130	static void
		131	feature_update_pass_2 (struct feature *f, unsigned int v)
		132	{
		133	float d = v - f->v1;
		134
		135	f->v2 += d * d;
		136	f->v3 += d * d * d;
		137	}
		138
		139	static void
		140	feature_finish_pass_2 (struct feature *f)
		141	{
		142	if (f->n < 1)
		143	return;
		144
		145	f->v2 /= f->n;
		146	f->v3 /= f->n;
		147
		148	f->v1 /= 255.;
		149	f->v2 /= 255. * 255.; f->v2 = sqrtf (f->v2);
		150	f->v3 /= 255. * 255. * 255.; f->v3 = powf (fabsf (f->v3), 1./3.);
		151	}
		152
67	static guint32 a85_val;	153	static guint32 a85_val;
68	static guint a85_cnt;	154	static guint a85_cnt;
69	static guchar a85_buf[LINELENGTH], *a85_ptr;	155	static guchar a85_buf[LINELENGTH], *a85_ptr;
70		156
71	static void	157	static void
…		…
83	if (!--a85_cnt)	169	if (!--a85_cnt)
84	{	170	{
85	a85_cnt = 4;	171	a85_cnt = 4;
86	if (a85_val)	172	if (a85_val)
87	{	173	{
88	a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85;	174	a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85;
89	a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85;	175	a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85;
90	a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85;	176	a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85;
91	a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85;	177	a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85;
92	a85_ptr[0] = (a85_val ) + 33;	178	a85_ptr[0] = (a85_val ) + 33;
93		179
94	a85_ptr += 5;	180	a85_ptr += 5;
95	}	181	}
…		…
118		204
119	PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);	205	PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);
120	}	206	}
121		207
122	/////////////////////////////////////////////////////////////////////////////	208	/////////////////////////////////////////////////////////////////////////////
		209	// memory source for libjpeg
		210
		211	static void cv_ms_init (j_decompress_ptr cinfo)
		212	{
		213	}
		214
		215	static void cv_ms_term (j_decompress_ptr cinfo)
		216	{
		217	}
		218
		219	static boolean cv_ms_fill (j_decompress_ptr cinfo)
		220	{
		221	// unexpected EOF, warn and generate fake EOI marker
		222
		223	WARNMS (cinfo, JWRN_JPEG_EOF);
		224
		225	struct jpeg_source_mgr src = (struct jpeg_source_mgr )cinfo->src;
		226
		227	static const JOCTET eoi[] = { 0xFF, JPEG_EOI };
		228
		229	src->next_input_byte = eoi;
		230	src->bytes_in_buffer = sizeof (eoi);
		231
		232	return TRUE;
		233	}
		234
		235	static void cv_ms_skip (j_decompress_ptr cinfo, long num_bytes)
		236	{
		237	struct jpeg_source_mgr src = (struct jpeg_source_mgr )cinfo->src;
		238
		239	src->next_input_byte += num_bytes;
		240	src->bytes_in_buffer -= num_bytes;
		241	}
		242
		243	static void cv_jpeg_mem_src (j_decompress_ptr cinfo, void *buf, size_t buflen)
		244	{
		245	struct jpeg_source_mgr *src;
		246
		247	if (!cinfo->src)
		248	cinfo->src = (struct jpeg_source_mgr *)
		249	(*cinfo->mem->alloc_small) (
		250	(j_common_ptr) cinfo, JPOOL_PERMANENT, sizeof (struct jpeg_source_mgr)
		251	);
		252
		253	src = (struct jpeg_source_mgr *)cinfo->src;
		254	src->init_source = cv_ms_init;
		255	src->fill_input_buffer = cv_ms_fill;
		256	src->skip_input_data = cv_ms_skip;
		257	src->resync_to_restart = jpeg_resync_to_restart;
		258	src->term_source = cv_ms_term;
		259	src->next_input_byte = (JOCTET *)buf;
		260	src->bytes_in_buffer = buflen;
		261	}
		262
		263	/////////////////////////////////////////////////////////////////////////////
		264
		265	/* great, the jpeg-xl reference implementaton requires us to parse bmff files */
		266
		267	struct bmff_box
		268	{
		269	char type[4];
		270	const uint8_t *ptr;
		271	size_t size;
		272	};
		273
		274	static int
		275	bmff_parse_box (struct bmff_box box, const uint8_t next_in, size_t avail_in)
		276	{
		277	if (*avail_in < 8)
		278	return 0;
		279
		280	box->size = ((*next_in)[0] << 24)
		281	\| ((*next_in)[1] << 16)
		282	\| ((*next_in)[2] << 8)
		283	\| ((*next_in)[3] );
		284
		285	if (box->size < 8)
		286	return 0;
		287
		288	if (*avail_in < box->size)
		289	return 0;
		290
		291	memcpy (box->type, *next_in + 4, 4);
		292	box->ptr = *next_in + 8;
		293
		294	*next_in += box->size;
		295	*avail_in -= box->size;
		296
		297	box->size -= 8;
		298
		299	return 1;
		300	}
		301
		302	/////////////////////////////////////////////////////////////////////////////
123		303
124	MODULE = Gtk2::CV PACKAGE = Gtk2::CV	304	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
125		305
126	PROTOTYPES: ENABLE	306	PROTOTYPES: ENABLE
127		307
		308	# calculate the common prefix length of two strings
		309	# missing function in perl. really :)
		310	int
		311	common_prefix_length (a, b)
		312	unsigned char a = (unsigned char )SvPVutf8_nolen ($arg);
		313	unsigned char b = (unsigned char )SvPVutf8_nolen ($arg);
		314	CODE:
		315	RETVAL = 0;
		316
		317	while (a == b && *a)
		318	{
		319	RETVAL += (*a & 0xc0) != 0x80;
		320	a++, b++;
		321	}
		322
		323	OUTPUT:
		324	RETVAL
		325
		326	const char *
		327	magic (SV *path_or_data)
		328	ALIAS:
		329	magic = 0
		330	magic_mime = 1
		331	magic_buffer = 2
		332	magic_buffer_mime = 3
		333	CODE:
		334	{
		335	STRLEN len;
		336	char *data = SvPVbyte (path_or_data, len);
		337
		338	if (!magic_cookie[0])
		339	{
		340	magic_cookie[0] = magic_open (MAGIC_SYMLINK);
		341	magic_cookie[1] = magic_open (MAGIC_SYMLINK \| MAGIC_MIME_TYPE);
		342	magic_load (magic_cookie[0], 0);
		343	magic_load (magic_cookie[1], 0);
		344	}
		345
		346	perlinterp_release ();
		347
		348	RETVAL = ix & 2
		349	? magic_buffer (magic_cookie[ix & 1], data, len)
		350	: magic_file (magic_cookie[ix & 1], data);
		351
		352	perlinterp_acquire ();
		353	}
		354	OUTPUT:
		355	RETVAL
		356
		357	# missing/broken in Gtk2 perl module
		358
		359	void
		360	gdk_window_clear_hints (GdkWindow *window)
		361	CODE:
		362	gdk_window_set_geometry_hints (window, 0, 0);
		363
		364	gboolean
		365	gdk_net_wm_supports (GdkAtom property)
		366	CODE:
		367	#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE)
		368	RETVAL = gdk_net_wm_supports (property);
		369	#else
		370	RETVAL = 0;
		371	#endif
		372	OUTPUT:
		373	RETVAL
		374
128	GdkPixbuf_noinc *	375	GdkPixbuf_noinc *
129	transpose (GdkPixbuf *pb)	376	dealpha_expose (GdkPixbuf *pb)
130	CODE:	377	CODE:
		378	perlinterp_release ();
131	{	379	{
132	int w = gdk_pixbuf_get_width (pb);	380	int w = gdk_pixbuf_get_width (pb);
133	int h = gdk_pixbuf_get_height (pb);	381	int h = gdk_pixbuf_get_height (pb);
134	int bpp = gdk_pixbuf_get_n_channels (pb);	382	int bpp = gdk_pixbuf_get_n_channels (pb);
135	int x, y, i;	383	int x, y, i;
136	guchar src = gdk_pixbuf_get_pixels (pb), dst;	384	guchar src = gdk_pixbuf_get_pixels (pb), dst;
137	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;	385	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;
138		386
139	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w);	387	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);
140		388
141	dst = gdk_pixbuf_get_pixels (RETVAL);	389	dst = gdk_pixbuf_get_pixels (RETVAL);
142	dstr = gdk_pixbuf_get_rowstride (RETVAL);	390	dstr = gdk_pixbuf_get_rowstride (RETVAL);
143		391
144	for (y = 0; y < h; y++)
145	for (x = 0; x < w; x++)	392	for (x = 0; x < w; x++)
		393	for (y = 0; y < h; y++)
146	for (i = 0; i < bpp; i++)	394	for (i = 0; i < 3; i++)
147	dst[y * bpp + x * dstr + i] = src[x * bpp + y * sstr + i];	395	dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i];
148	}	396	}
		397	perlinterp_acquire ();
149	OUTPUT:	398	OUTPUT:
150	RETVAL	399	RETVAL
151		400
152	GdkPixbuf_noinc *	401	GdkPixbuf_noinc *
153	flop (GdkPixbuf *pb)	402	rotate (GdkPixbuf *pb, int angle)
154	CODE:	403	CODE:
155	{	404	perlinterp_release ();
156	int w = gdk_pixbuf_get_width (pb);	405	if (angle < 0)
157	int h = gdk_pixbuf_get_height (pb);	406	angle += 360;
158	int bpp = gdk_pixbuf_get_n_channels (pb);	407	RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE
159	int x, y, i;	408	: angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE
160	guchar src = gdk_pixbuf_get_pixels (pb), dst;	409	: angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN
161	int sstr = gdk_pixbuf_get_rowstride (pb), dstr;	410	: angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE
162		411	: angle);
163	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h);	412	perlinterp_acquire ();
164
165	dst = gdk_pixbuf_get_pixels (RETVAL);
166	dstr = gdk_pixbuf_get_rowstride (RETVAL);
167
168	for (y = 0; y < h; y++)
169	for (x = 0; x < w; x++)
170	for (i = 0; i < bpp; i++)
171	dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i];
172	}
173	OUTPUT:	413	OUTPUT:
174	RETVAL	414	RETVAL
175		415
		416	const char *
		417	filetype (SV *image_data)
		418	CODE:
		419	{
		420	STRLEN data_len;
		421	U8 *data = SvPVbyte (image_data, data_len);
		422	static const unsigned char jxl_header[] = {
		423	0, 0, 0, 0x0c, 0x4a, 0x58, 0x4c, 0x20,
		424	0x0d, 0xa, 0x87, 0x0a, 0, 0, 0, 0x14,
		425	0x66, 0x74, 0x79, 0x70, 0x6a, 0x78, 0x6c, 0x20,
		426	0, 0, 0, 0, 0x6a, 0x78, 0x6c, 0x20,
		427	};
		428
		429	if (data_len >= 20
		430	&& data[0] == 0xff
		431	&& data[1] == 0xd8
		432	&& data[2] == 0xff)
		433	RETVAL = "image/jpeg";
		434	else if (data_len >= 12
		435	&& data[ 0] == (U8)'R'
		436	&& data[ 1] == (U8)'I'
		437	&& data[ 2] == (U8)'F'
		438	&& data[ 3] == (U8)'F'
		439	&& data[ 8] == (U8)'W'
		440	&& data[ 9] == (U8)'E'
		441	&& data[10] == (U8)'B'
		442	&& data[11] == (U8)'P')
		443	RETVAL = "image/webp";
		444	else if (data_len >= 16
		445	&& data[ 0] == 0x89
		446	&& data[ 1] == (U8)'P'
		447	&& data[ 2] == (U8)'N'
		448	&& data[ 3] == (U8)'G'
		449	&& data[ 4] == 0x0d
		450	&& data[ 5] == 0x0a
		451	&& data[ 6] == 0x1a
		452	&& data[ 7] == 0x0a)
		453	RETVAL = "image/png";
		454	else if (data_len >= sizeof (jxl_header) && memcmp (data, jxl_header, sizeof (jxl_header)) == 0)
		455	RETVAL = "image/jxl";
		456	else if (data_len >= 13
		457	&& data[0] == 'G'
		458	&& data[1] == 'I'
		459	&& data[2] == 'F'
		460	&& data[3] == '8'
		461	//&& (data[4] == '7' \|\| data[4] == '9')
		462	&& data[5] == 'a')
		463	{
		464	RETVAL = "image/gif";
		465
		466	// now see if its animated - we require the netscape application header for this
		467	int ofs = 13;
		468
		469	if (data[10] & 0x80)
		470	ofs += (1 << ((data[10] & 7) + 1)) * 3;
		471
		472	if (data_len >= ofs + 2 + 1 + 11)
		473	{
		474
		475	// skip a graphic control extension block. we assume
		476	// there is at most one such block - while the NAB
		477	// has to come firstz, some files do not obey this
		478	if (data[ofs] == 0x21 && data[ofs + 1] == 0xf9)
		479	ofs += 3 + data[ofs + 2] + 1;
		480
		481	if (data_len >= ofs + 2 + 1 + 11)
		482	if (!memcmp (data + ofs, "\x21\xff\x0bNETSCAPE2.0", sizeof ("\x21\xff\x0bNETSCAPE2.0") - 1))
		483	RETVAL = "video/gif";
		484	}
		485	}
		486
		487	else
		488	XSRETURN_UNDEF;
		489	}
		490	OUTPUT:
		491	RETVAL
		492
176	GdkPixbuf_noinc *	493	GdkPixbuf_noinc *
177	load_jpeg (char *path, int thumbnail=0)	494	decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
		495	CODE:
		496	{
		497	#if WEBP
		498	STRLEN data_size;
		499	int alpha;
		500	WebPData data;
		501	WebPDemuxer *demux;
		502	WebPIterator iter;
		503	WebPDecoderConfig config;
		504	int inw, inh;
		505
		506	data.bytes = (uint8_t *)SvPVbyte (image_data, data_size);
		507	data.size = data_size;
		508
		509	perlinterp_release ();
		510
		511	RETVAL = 0;
		512
		513	if (!(demux = WebPDemux (&data)))
		514	goto err_demux;
		515
		516	if (!WebPDemuxGetFrame (demux, 1, &iter))
		517	goto err_iter;
		518
		519	if (!WebPInitDecoderConfig (&config))
		520	goto err_iter;
		521
		522	config.options.use_threads = 1;
		523
		524	if (WebPGetFeatures (iter.fragment.bytes, iter.fragment.size, &config.input) != VP8_STATUS_OK)
		525	goto err_iter;
		526
		527	inw = config.input.width;
		528	inh = config.input.height;
		529
		530	if (thumbnail)
		531	{
		532	if (inw * ih > inh * iw)
		533	ih = (iw * inh + inw - 1) / inw;
		534	else
		535	iw = (ih * inw + inh - 1) / inh;
		536
		537	config.options.bypass_filtering = 1;
		538	config.options.no_fancy_upsampling = 1;
		539
		540	config.options.use_scaling = 1;
		541	config.options.scaled_width = iw;
		542	config.options.scaled_height = ih;
		543	}
		544	else
		545	{
		546	iw = inw;
		547	ih = inh;
		548	}
		549
		550	alpha = !!config.input.has_alpha;
		551
		552	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, alpha, 8, iw, ih);
		553	if (!RETVAL)
		554	goto err_iter;
		555
		556	config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB;
		557	config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL);
		558	config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL);
		559	config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL);
		560	config.output.is_external_memory = 1;
		561
		562	if (WebPDecode (iter.fragment.bytes, iter.fragment.size, &config) != VP8_STATUS_OK)
		563	{
		564	g_object_unref (RETVAL);
		565	RETVAL = 0;
		566	goto err_iter;
		567	}
		568
		569	err_iter:
		570	WebPDemuxReleaseIterator (&iter);
		571	err_demux:
		572	WebPDemuxDelete (demux);
		573
		574	perlinterp_acquire ();
		575	#else
		576	croak ("load_webp: webp not enabled at compile time");
		577	#endif
		578	}
		579	OUTPUT:
		580	RETVAL
		581
		582	GdkPixbuf_noinc *
		583	decode_jxl (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
		584	CODE:
		585	{
		586	#if JXL
		587	JxlDecoder *dec = JxlDecoderCreate (0);
		588	JxlBasicInfo info;
		589	const uint8_t next_in = (uint8_t )SvPVbyte_nolen (image_data);
		590	size_t avail_in = SvCUR (image_data);
		591	const char *error = 0;
		592	void *runner = 0;
		593	struct bmff_box box;
		594
		595	perlinterp_release ();
		596
		597	RETVAL = 0;
		598
		599	error = "JxlDecoderCreate failed";
		600	if (!dec)
		601	goto done;
		602
		603	runner = JxlThreadParallelRunnerCreate (0, JxlThreadParallelRunnerDefaultNumWorkerThreads ());
		604
		605	error = "JxlDecoderSetParallelRunner failed";
		606	if (JxlDecoderSetParallelRunner (dec, JxlThreadParallelRunner, runner) != JXL_DEC_SUCCESS)
		607	goto done;
		608
		609	error = "JxlDecoderSubscribeEvents failed";
		610	if (JxlDecoderSubscribeEvents (dec, JXL_DEC_FULL_IMAGE \| JXL_DEC_BASIC_INFO) != JXL_DEC_SUCCESS)
		611	goto done;
		612
		613	error = "JxlDecoderSetInput failed";
		614	if (JxlDecoderSetInput (dec, next_in, avail_in) != JXL_DEC_SUCCESS)
		615	goto done;
		616
		617	for (;;)
		618	{
		619	JxlDecoderStatus status = JxlDecoderProcessInput (dec);
		620
		621	printf ("status %d\n",status);
		622
		623	switch (status)
		624	{
		625	case JXL_DEC_ERROR:
		626	error = "JxlDecoderProcessInput failed";
		627	goto done;
		628
		629	case JXL_DEC_NEED_MORE_INPUT:
		630	error = "incomplete file";
		631	goto done;
		632
		633	case JXL_DEC_SUCCESS:
		634	goto done;
		635
		636	case JXL_DEC_NEED_IMAGE_OUT_BUFFER:
		637	{
		638	error = "JxlDecoderGetBasicInfo failed";
		639	if (JxlDecoderGetBasicInfo (dec, &info) != JXL_DEC_SUCCESS)
		640	goto done;
		641
		642	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!info.alpha_bits, 8, info.xsize, info.ysize);
		643	error = "unable to allocate pixbuf";
		644	if (!RETVAL)
		645	goto done;
		646
		647	JxlPixelFormat format = {
		648	info.alpha_bits ? 4 : 3,
		649	JXL_TYPE_UINT8,
		650	JXL_NATIVE_ENDIAN,
		651	gdk_pixbuf_get_rowstride (RETVAL)
		652	};
		653
		654	error = "JxlDecoderSetImageOutBuffer failed";
		655	if (JxlDecoderSetImageOutBuffer (
		656	dec,
		657	&format,
		658	gdk_pixbuf_get_pixels (RETVAL),
		659	gdk_pixbuf_get_byte_length (RETVAL)
		660	) != JXL_DEC_SUCCESS)
		661	goto done;
		662	}
		663	break;
		664
		665	default:
		666	error = "unexpected event";
		667	goto done;
		668	}
		669	}
		670
		671	done:
		672	if (dec)
		673	JxlDecoderDestroy (dec);
		674
		675	if (runner)
		676	JxlThreadParallelRunnerDestroy (runner);
		677
		678	perlinterp_acquire ();
		679
		680	if (error)
		681	{
		682	if (RETVAL)
		683	g_object_unref (RETVAL);
		684
		685	croak ("load_jxl: %s", error);
		686	}
		687	#else
		688	croak ("load_jxl: jpeg-xl not enabled at compile time");
		689	#endif
		690	}
		691	OUTPUT:
		692	RETVAL
		693
		694	GdkPixbuf_noinc *
		695	decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
178	CODE:	696	CODE:
179	{	697	{
180	struct jpeg_decompress_struct cinfo;	698	struct jpeg_decompress_struct cinfo;
181	struct jpg_err_mgr jerr;	699	struct jpg_err_mgr jerr;
182	guchar *data;
183	int rs;	700	int rs;
184	FILE *fp;
185	volatile GdkPixbuf *pb = 0;	701	volatile GdkPixbuf *pb = 0;
		702	STRLEN data_len;
		703	guchar *data = SvPVbyte (image_data, data_len);
		704
186	RETVAL = 0;	705	RETVAL = 0;
187		706
188	if (!(fp = fopen (path, "rb")))	707	perlinterp_release ();
189	XSRETURN_UNDEF;
190		708
191	cinfo.err = jpeg_std_error (&jerr.err);	709	cinfo.err = jpeg_std_error (&jerr.err);
192		710
193	jerr.err.error_exit = cv_error_exit;	711	jerr.err.error_exit = cv_error_exit;
194	jerr.err.output_message = cv_error_output;	712	jerr.err.output_message = cv_error_output;
195		713
196	if ((rs = setjmp (jerr.setjmp_buffer)))	714	if ((rs = setjmp (jerr.setjmp_buffer)))
197	{	715	{
198	fclose (fp);
199	jpeg_destroy_decompress (&cinfo);	716	jpeg_destroy_decompress (&cinfo);
200		717
201	if (pb)	718	if (pb)
202	g_object_unref ((gpointer)pb);	719	g_object_unref ((gpointer)pb);
203		720
		721	perlinterp_acquire ();
204	XSRETURN_UNDEF;	722	XSRETURN_UNDEF;
205	}	723	}
206		724
		725	if (!data_len)
		726	longjmp (jerr.setjmp_buffer, 4);
		727
207	jpeg_create_decompress (&cinfo);	728	jpeg_create_decompress (&cinfo);
		729	cv_jpeg_mem_src (&cinfo, data, data_len);
208		730
209	jpeg_stdio_src (&cinfo, fp);
210	jpeg_read_header (&cinfo, TRUE);	731	jpeg_read_header (&cinfo, TRUE);
211		732
212	cinfo.dct_method = JDCT_DEFAULT;	733	cinfo.dct_method = JDCT_DEFAULT;
213	cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */	734	cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */
214	cinfo.do_block_smoothing = FALSE;	735	cinfo.do_block_smoothing = FALSE;
…		…
224	{	745	{
225	cinfo.dct_method = JDCT_FASTEST;	746	cinfo.dct_method = JDCT_FASTEST;
226	cinfo.do_fancy_upsampling = FALSE;	747	cinfo.do_fancy_upsampling = FALSE;
227		748
228	while (cinfo.scale_denom < 8	749	while (cinfo.scale_denom < 8
229	&& (cinfo.output_width >> 1) >= IW	750	&& cinfo.output_width >= iw*4
230	&& (cinfo.output_height >> 1) >= IH)	751	&& cinfo.output_height >= ih*4)
231	{	752	{
232	cinfo.scale_denom <<= 1;	753	cinfo.scale_denom <<= 1;
233	jpeg_calc_output_dimensions (&cinfo);	754	jpeg_calc_output_dimensions (&cinfo);
234	}	755	}
235	}	756	}
236		757
		758	if (cinfo.output_components != 3)
		759	longjmp (jerr.setjmp_buffer, 3);
		760
		761	if (cinfo.jpeg_color_space == JCS_YCCK \|\| cinfo.jpeg_color_space == JCS_CMYK)
		762	{
		763	cinfo.out_color_space = JCS_CMYK;
		764	cinfo.output_components = 4;
		765	}
		766
237	pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height);	767	pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, cinfo.output_components == 4, 8, cinfo.output_width, cinfo.output_height);
238	if (!RETVAL)	768	if (!RETVAL)
239	longjmp (jerr.setjmp_buffer, 2);	769	longjmp (jerr.setjmp_buffer, 2);
240		770
241	data = gdk_pixbuf_get_pixels (RETVAL);	771	data = gdk_pixbuf_get_pixels (RETVAL);
242	rs = gdk_pixbuf_get_rowstride (RETVAL);	772	rs = gdk_pixbuf_get_rowstride (RETVAL);
243
244	if (cinfo.output_components != 3)
245	longjmp (jerr.setjmp_buffer, 3);
246		773
247	jpeg_start_decompress (&cinfo);	774	jpeg_start_decompress (&cinfo);
248		775
249	while (cinfo.output_scanline < cinfo.output_height)	776	while (cinfo.output_scanline < cinfo.output_height)
250	{	777	{
…		…
257	rp [3] = (guchar *)rp [2] + rs;	784	rp [3] = (guchar *)rp [2] + rs;
258		785
259	jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4);	786	jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4);
260	}	787	}
261		788
		789	if (cinfo.out_color_space == JCS_CMYK)
		790	{
		791	guchar end = data + cinfo.output_height rs;
		792
		793	while (data < end)
		794	{
		795	U32 c = data [0];
		796	U32 m = data [1];
		797	U32 y = data [2];
		798	U32 k = data [3];
		799
		800	if (0)
		801	if (cinfo.Adobe_transform == 2)
		802	{
		803	c ^= 0xff;
		804	m ^= 0xff;
		805	y ^= 0xff;
		806	k ^= 0xff;
		807	}
		808
		809	data [0] = (c * k + 0x80) / 0xff;
		810	data [1] = (m * k + 0x80) / 0xff;
		811	data [2] = (y * k + 0x80) / 0xff;
		812	data [3] = 0xff;
		813
		814	data += 4;
		815	}
		816	}
		817
262	jpeg_finish_decompress (&cinfo);	818	jpeg_finish_decompress (&cinfo);
263	fclose (fp);
264	jpeg_destroy_decompress (&cinfo);	819	jpeg_destroy_decompress (&cinfo);
		820	perlinterp_acquire ();
265	}	821	}
266	OUTPUT:	822	OUTPUT:
267	RETVAL	823	RETVAL
268		824
		825	void
		826	compare (GdkPixbuf a, GdkPixbuf b)
		827	PPCODE:
		828	perlinterp_release ();
		829	{
		830	int w = gdk_pixbuf_get_width (a);
		831	int h = gdk_pixbuf_get_height (a);
		832
		833	int sa = gdk_pixbuf_get_rowstride (a);
		834	int sb = gdk_pixbuf_get_rowstride (b);
		835
		836	guchar *pa = gdk_pixbuf_get_pixels (a);
		837	guchar *pb = gdk_pixbuf_get_pixels (b);
		838
		839	int x, y;
		840
		841	assert (w == gdk_pixbuf_get_width (b));
		842	assert (h == gdk_pixbuf_get_height (b));
		843
		844	assert (gdk_pixbuf_get_n_channels (a) == 3);
		845	assert (gdk_pixbuf_get_n_channels (b) == 3);
		846
		847	double diff = 0.;
		848	int peak = 0;
		849
		850	if (w && h)
		851	for (y = 0; y < h; y++)
		852	{
		853	guchar pa_ = pa + y sa;
		854	guchar pb_ = pb + y sb;
		855
		856	for (x = 0; x < w; x++)
		857	{
		858	int d;
		859
		860	d = ((int)pa_++) - ((int)pb_++); diff += d*d; peak = MAX (peak, abs (d));
		861	d = ((int)pa_++) - ((int)pb_++); diff += d*d; peak = MAX (peak, abs (d));
		862	d = ((int)pa_++) - ((int)pb_++); diff += d*d; peak = MAX (peak, abs (d));
		863	}
		864	}
		865
		866	perlinterp_acquire ();
		867
		868	EXTEND (SP, 2);
		869	PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.)))));
		870	PUSHs (sv_2mortal (newSVnv (peak / 255.)));
		871	}
		872
269	#############################################################################	873	#############################################################################
270		874
271	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer	875	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer
272		876
		877	# currently only works for filenames (octet strings)
		878
		879	SV *
		880	foldcase (SV *pathsv)
		881	PROTOTYPE: $
		882	CODE:
		883	{
		884	STRLEN plen;
		885	U8 path = (U8 )SvPV (pathsv, plen);
		886	U8 *pend = path + plen;
		887	U8 dst [plen * 8 * 3], *dstp = dst;
		888
		889	while (path < pend)
		890	{
		891	U8 ch = *path;
		892
		893	if (ch >= 'a' && ch <= 'z')
		894	dstp++ = path++;
		895	else if (ch >= 'A' && ch <= 'Z')
		896	dstp++ = path++ + ('a' - 'A');
		897	else if (ch >= '0' && ch <= '9')
		898	{
		899	/* version sort, up to 8 digits */
		900	STRLEN el, nl = 0;
		901	while (path >= '0' && path <= '9' && path < pend)
		902	path++, nl++;
		903
		904	for (el = nl; el < 8; el++)
		905	*dstp++ = '0';
		906
		907	memcpy (dstp, path - nl, nl);
		908	dstp += nl;
		909	}
		910	else
		911	dstp++ = path++;
		912	#if 0
		913	else
		914	{
		915	STRLEN cl;
		916	to_utf8_fold (path, dstp, &cl);
		917	dstp += cl;
		918	path += is_utf8_char (path);
		919	}
		920	#endif
		921	}
		922
		923	RETVAL = newSVpvn ((const char *)dst, dstp - dst);
		924	}
		925	OUTPUT:
		926	RETVAL
		927
273	GdkPixbuf_noinc *	928	GdkPixbuf_noinc *
274	p7_to_pb (int w, int h, guchar *src)	929	p7_to_pb (int w, int h, SV *src_sv)
		930	PROTOTYPE: @
275	CODE:	931	CODE:
276	{	932	{
277	int x, y;	933	int x, y;
278	guchar dst, d;	934	guchar dst, d;
279	int dstr;	935	int dstr;
		936	guchar src = (guchar )SvPVbyte_nolen (src_sv);
280		937
281	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);	938	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, w, h);
282	dst = gdk_pixbuf_get_pixels (RETVAL);	939	dst = gdk_pixbuf_get_pixels (RETVAL);
283	dstr = gdk_pixbuf_get_rowstride (RETVAL);	940	dstr = gdk_pixbuf_get_rowstride (RETVAL);
284		941
…		…
293	}	950	}
294	}	951	}
295	OUTPUT:	952	OUTPUT:
296	RETVAL	953	RETVAL
297		954
		955	#############################################################################
		956
		957	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript
		958
		959	void
		960	dump_ascii85 (PerlIO fp, GdkPixbuf pb)
		961	CODE:
		962	{
		963	int w = gdk_pixbuf_get_width (pb);
		964	int h = gdk_pixbuf_get_height (pb);
		965	int x, y, i;
		966	guchar *dst;
		967	int bpp = gdk_pixbuf_get_n_channels (pb);
		968	guchar *src = gdk_pixbuf_get_pixels (pb);
		969	int sstr = gdk_pixbuf_get_rowstride (pb);
		970
		971	a85_init ();
		972
		973	for (y = 0; y < h; y++)
		974	for (x = 0; x < w; x++)
		975	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
		976	a85_push (fp, src [x * bpp + y * sstr + i]);
		977
		978	a85_finish (fp);
		979	}
		980
		981	void
		982	dump_binary (PerlIO fp, GdkPixbuf pb)
		983	CODE:
		984	{
		985	int w = gdk_pixbuf_get_width (pb);
		986	int h = gdk_pixbuf_get_height (pb);
		987	int x, y, i;
		988	guchar *dst;
		989	int bpp = gdk_pixbuf_get_n_channels (pb);
		990	guchar *src = gdk_pixbuf_get_pixels (pb);
		991	int sstr = gdk_pixbuf_get_rowstride (pb);
		992
		993	for (y = 0; y < h; y++)
		994	for (x = 0; x < w; x++)
		995	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
		996	PerlIO_putc (fp, src [x * bpp + y * sstr + i]);
		997	}
		998
		999	#############################################################################
		1000
		1001	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
		1002
298	SV *	1003	SV *
299	pb_to_p7 (GdkPixbuf *pb)	1004	pb_to_hv84 (GdkPixbuf *pb)
300	CODE:	1005	CODE:
301	{	1006	{
302	int w = gdk_pixbuf_get_width (pb);	1007	int w = gdk_pixbuf_get_width (pb);
303	int h = gdk_pixbuf_get_height (pb);	1008	int h = gdk_pixbuf_get_height (pb);
304	int x, y;	1009	int x, y;
305	guchar *dst;	1010	guchar *dst;
306	int bpp = gdk_pixbuf_get_n_channels (pb);	1011	int bpp = gdk_pixbuf_get_n_channels (pb);
307	guchar *src = gdk_pixbuf_get_pixels (pb);	1012	guchar *src = gdk_pixbuf_get_pixels (pb);
308	int sstr = gdk_pixbuf_get_rowstride (pb);	1013	int sstr = gdk_pixbuf_get_rowstride (pb);
309	int Er[IW], Eg[IW], Eb[IW];
310	int seed = 77;
311
312	RETVAL = newSV (w * h);
313	SvPOK_only (RETVAL);
314	SvCUR_set (RETVAL, w * h);
315
316	dst = SvPVX (RETVAL);
317
318	memset (Er, 0, sizeof (int) * IW);
319	memset (Eg, 0, sizeof (int) * IW);
320	memset (Eb, 0, sizeof (int) * IW);
321
322	/* some primitive error distribution + random dithering */
323
324	for (y = 0; y < h; y++)
325	{
326	int er = 0, eg = 0, eb = 0;
327
328	for (x = 0; x < w; x++)
329	{
330	int r, g, b;
331	guchar p = src + x bpp + y * sstr;
332
333	r = ((p[0] + er + Er[x]) * 7 + (RAND & 127) + 64) / 255;
334	g = ((p[1] + eg + Eg[x]) * 7 + (RAND & 127) + 64) / 255;
335	b = ((p[2] + eb + Eb[x]) * 3 + (RAND & 127) + 64) / 255;
336
337	r = r > 7 ? 7 : r < 0 ? 0 : r;
338	g = g > 7 ? 7 : g < 0 ? 0 : g;
339	b = b > 3 ? 3 : b < 0 ? 0 : b;
340
341	er += p[0] - (r * 255 + 4) / 7;
342	eg += p[1] - (g * 255 + 4) / 7;
343	eb += p[2] - (b * 255 + 2) / 3;
344
345	Er[x] = er >> 1; er -= (er + 1) >> 1;
346	Eg[x] = eg >> 1; eg -= (eg + 1) >> 1;
347	Eb[x] = eb >> 1; eb -= (eb + 1) >> 1;
348
349	*dst++ = r << 5 \| g << 2 \| b;
350	}
351	}
352	}
353	OUTPUT:
354	RETVAL
355
356	SV *
357	make_histogram (SV *ar)
358	CODE:
359	{
360	int i;
361	AV av, result;
362
363	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)
364	croak ("Not an array ref as first argument to make_histogram");
365
366	av = (AV *) SvRV (ar);
367	result = newAV ();
368
369	for (i = 0; i <= av_len (av); ++i)
370	{
371	const int HISTSIZE = 64;
372
373	int j;
374	SV sv = av_fetch (av, i, 1);
375	STRLEN len;
376	char *buf = SvPVbyte (sv, len);
377
378	int tmphist[HISTSIZE];
379	float *hist;
380
381	SV histsv = newSV (HISTSIZE sizeof (float) + 1);
382	SvPOK_on (histsv);
383	SvCUR_set (histsv, HISTSIZE * sizeof (float));
384	hist = (float *)SvPVX (histsv);
385
386	Zero (tmphist, sizeof (tmphist), char);
387
388	for (j = len; j--; )
389	{
390	unsigned int idx
391	= ((*buf & 0xc0) >> 2)
392	\| ((*buf & 0x18) >> 1)
393	\| (*buf & 0x03);
394
395	++tmphist[idx];
396	++buf;
397	}
398
399	for (j = 0; j < HISTSIZE; ++j)
400	hist[j] = (float)tmphist[j] / (len + 1e-30);
401
402	av_push (result, histsv);
403	}
404
405	RETVAL = newRV_noinc ((SV *)result);
406	}
407	OUTPUT:
408	RETVAL
409
410	#############################################################################
411
412	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript
413
414	void
415	dump_ascii85 (PerlIO fp, GdkPixbuf pb)
416	CODE:
417	{
418	int w = gdk_pixbuf_get_width (pb);
419	int h = gdk_pixbuf_get_height (pb);
420	int x, y, i;
421	guchar *dst;
422	int bpp = gdk_pixbuf_get_n_channels (pb);
423	guchar *src = gdk_pixbuf_get_pixels (pb);
424	int sstr = gdk_pixbuf_get_rowstride (pb);
425
426	a85_init ();
427
428	for (y = 0; y < h; y++)
429	for (x = 0; x < w; x++)
430	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
431	a85_push (fp, src [x * bpp + y * sstr + i]);
432
433	a85_finish (fp);
434	}
435
436	void
437	dump_binary (PerlIO fp, GdkPixbuf pb)
438	CODE:
439	{
440	int w = gdk_pixbuf_get_width (pb);
441	int h = gdk_pixbuf_get_height (pb);
442	int x, y, i;
443	guchar *dst;
444	int bpp = gdk_pixbuf_get_n_channels (pb);
445	guchar *src = gdk_pixbuf_get_pixels (pb);
446	int sstr = gdk_pixbuf_get_rowstride (pb);
447
448	for (y = 0; y < h; y++)
449	for (x = 0; x < w; x++)
450	for (i = 0; i < (bpp < 3 ? 1 : 3); i++)
451	PerlIO_putc (fp, src [x * bpp + y * sstr + i]);
452	}
453
454	#############################################################################
455
456	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
457
458	SV *
459	pb_to_hv84 (GdkPixbuf *pb)
460	CODE:
461	{
462	int w = gdk_pixbuf_get_width (pb);
463	int h = gdk_pixbuf_get_height (pb);
464	int x, y;
465	guchar *dst;
466	int bpp = gdk_pixbuf_get_n_channels (pb);
467	guchar *src = gdk_pixbuf_get_pixels (pb);
468	int sstr = gdk_pixbuf_get_rowstride (pb);
469		1014
470	RETVAL = newSV (6 * 8 * 12 / 8);	1015	RETVAL = newSV (6 * 8 * 12 / 8);
471	SvPOK_only (RETVAL);	1016	SvPOK_only (RETVAL);
472	SvCUR_set (RETVAL, 6 * 8 * 12 / 8);	1017	SvCUR_set (RETVAL, 6 * 8 * 12 / 8);
473		1018
474	dst = SvPVX (RETVAL);	1019	dst = (guchar *)SvPVX (RETVAL);
475		1020
476	/* some primitive error distribution + random dithering */	1021	/* some primitive error distribution + random dithering */
477		1022
478	for (y = 0; y < h; y++)	1023	for (y = 0; y < h; y++)
479	{	1024	{
…		…
537	}	1082	}
538	}	1083	}
539	OUTPUT:	1084	OUTPUT:
540	RETVAL	1085	RETVAL
541		1086
		1087	#############################################################################
542		1088
		1089	MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster
543		1090
		1091	SV *
		1092	extract_features (SV *ar)
		1093	CODE:
		1094	{
		1095	int i;
		1096	AV av, result;
		1097
		1098	if (!SvROK (ar) \|\| SvTYPE (SvRV (ar)) != SVt_PVAV)
		1099	croak ("Not an array ref as first argument to extract_features");
		1100
		1101	av = (AV *) SvRV (ar);
		1102	result = newAV ();
		1103
		1104	for (i = 0; i <= av_len (av); ++i)
		1105	{
		1106	SV sv = av_fetch (av, i, 1);
		1107	SV histsv = newSV (9 sizeof (float) + 1);
		1108
		1109	SvPOK_on (histsv);
		1110	SvCUR_set (histsv, 9 * sizeof (float));
		1111	float hist = (float )SvPVX (histsv);
		1112
		1113	struct feature f_h, f_s, f_v;
		1114	feature_init (&f_h);
		1115	feature_init (&f_s);
		1116	feature_init (&f_v);
		1117
		1118	{
		1119	STRLEN len;
		1120	unsigned char buf = (unsigned char )SvPVbyte (sv, len);
		1121	while (len >= 3)
		1122	{
		1123	unsigned int r, g, b, h, s, v;
		1124	r = buf++; g = buf++; b = *buf++;
		1125	rgb_to_hsv (r, g, b, &h, &s, &v);
		1126
		1127	feature_update_pass_1 (&f_h, h);
		1128	feature_update_pass_1 (&f_s, s);
		1129	feature_update_pass_1 (&f_v, v);
		1130
		1131	len -= 3;
		1132	}
		1133
		1134	feature_finish_pass_1 (&f_h);
		1135	feature_finish_pass_1 (&f_s);
		1136	feature_finish_pass_1 (&f_v);
		1137	}
		1138
		1139	{
		1140	STRLEN len;
		1141	unsigned char buf = (unsigned char )SvPVbyte (sv, len);
		1142	while (len >= 3)
		1143	{
		1144	unsigned int r, g, b, h, s, v;
		1145	r = buf++; g = buf++; b = *buf++;
		1146	rgb_to_hsv (r, g, b, &h, &s, &v);
		1147
		1148	feature_update_pass_2 (&f_h, h);
		1149	feature_update_pass_2 (&f_s, s);
		1150	feature_update_pass_2 (&f_v, v);
		1151
		1152	len -= 3;
		1153	}
		1154
		1155	feature_finish_pass_2 (&f_h);
		1156	feature_finish_pass_2 (&f_s);
		1157	feature_finish_pass_2 (&f_v);
		1158	}
		1159
		1160	hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.;
		1161	hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ;
		1162	hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5;
		1163
		1164	av_push (result, histsv);
		1165	}
		1166
		1167	RETVAL = newRV_noinc ((SV *)result);
		1168	}
		1169	OUTPUT:
		1170	RETVAL
		1171

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Comparing CV/CV.xs (file contents): Revision 1.17 by root, Wed Jul 20 06:20:36 2005 UTC vs. Revision 1.62 by root, Sun Jul 25 11:32:46 2021 UTC

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Comparing CV/CV.xs (file contents):
Revision 1.17 by root, Wed Jul 20 06:20:36 2005 UTC vs.
Revision 1.62 by root, Sun Jul 25 11:32:46 2021 UTC