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

Comparing CV/CV.xs (file contents):
Revision 1.46 by root, Sat Jul 4 05:31:17 2015 UTC vs.
Revision 1.62 by root, Sun Jul 25 11:32:46 2021 UTC

…		…
7	#include <math.h>	7	#include <math.h>
8		8
9	#include <magic.h>	9	#include <magic.h>
10		10
11	#include <jpeglib.h>	11	#include <jpeglib.h>
		12	#include <jerror.h>
		13
12	#include <glib.h>	14	#include <glib.h>
13	#include <gtk/gtk.h>	15	#include <gtk/gtk.h>
		16	#include <gdk/gdkx.h>
14	#include <gdk-pixbuf/gdk-pixbuf.h>	17	#include <gdk-pixbuf/gdk-pixbuf.h>
15		18
16	#include <gperl.h>	19	#include <gperl.h>
17	#include <gtk2perl.h>	20	#include <gtk2perl.h>
18		21
19	#include <assert.h>	22	#include <assert.h>
20		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
21	#include "perlmulticore.h"	34	#include "perlmulticore.h"
22		35
23	#define IW 80 /* MUST match Schnauzer.pm! */	36	#define IW 80 /* MUST match Schnauzer.pm! */
24	#define IH 60 /* MUST match Schnauzer.pm! */	37	#define IH 60 /* MUST match Schnauzer.pm! */
25		38
26	#define RAND (seed = (seed + 7141) * 54773 % 134456)
27
28	#define LINELENGTH 240	39	#define LINELENGTH 240
29		40
30	#define ELLIPSIS "\xe2\x80\xa6"	41	#define ELLIPSIS "\xe2\x80\xa6"
31		42
32	typedef char *octet_string;	43	typedef char *octet_string;
		44
		45	static magic_t magic_cookie[2]; /* !mime, mime */
33		46
34	struct jpg_err_mgr	47	struct jpg_err_mgr
35	{	48	{
36	struct jpeg_error_mgr err;	49	struct jpeg_error_mgr err;
37	jmp_buf setjmp_buffer;	50	jmp_buf setjmp_buffer;
38	};	51	};
39		52
40	static void	53	static void
41	cv_error_exit (j_common_ptr cinfo)	54	cv_error_exit (j_common_ptr cinfo)
42	{	55	{
		56	cinfo->err->output_message (cinfo);
43	longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99);	57	longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99);
44	}	58	}
45		59
46	static void	60	static void
47	cv_error_output (j_common_ptr cinfo)	61	cv_error_output (j_common_ptr cinfo)
48	{	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);
49	return;	68	return;
50	}	69	}
51		70
52	static void	71	static void
53	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,
…		…
150	if (!--a85_cnt)	169	if (!--a85_cnt)
151	{	170	{
152	a85_cnt = 4;	171	a85_cnt = 4;
153	if (a85_val)	172	if (a85_val)
154	{	173	{
155	a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85;	174	a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85;
156	a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85;	175	a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85;
157	a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85;	176	a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85;
158	a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85;	177	a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85;
159	a85_ptr[0] = (a85_val ) + 33;	178	a85_ptr[0] = (a85_val ) + 33;
160		179
161	a85_ptr += 5;	180	a85_ptr += 5;
162	}	181	}
…		…
185		204
186	PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);	205	PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);
187	}	206	}
188		207
189	/////////////////////////////////////////////////////////////////////////////	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	/////////////////////////////////////////////////////////////////////////////
190		303
191	MODULE = Gtk2::CV PACKAGE = Gtk2::CV	304	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
192		305
193	PROTOTYPES: ENABLE	306	PROTOTYPES: ENABLE
194		307
		308	# calculate the common prefix length of two strings
195	# missing function in perl. really :)	309	# missing function in perl. really :)
196	int	310	int
197	common_prefix_length (a, b)	311	common_prefix_length (a, b)
198	unsigned char a = (unsigned char )SvPVutf8_nolen ($arg);	312	unsigned char a = (unsigned char )SvPVutf8_nolen ($arg);
199	unsigned char b = (unsigned char )SvPVutf8_nolen ($arg);	313	unsigned char b = (unsigned char )SvPVutf8_nolen ($arg);
…		…
208		322
209	OUTPUT:	323	OUTPUT:
210	RETVAL	324	RETVAL
211		325
212	const char *	326	const char *
213	magic (octet_string path)	327	magic (SV *path_or_data)
		328	ALIAS:
		329	magic = 0
		330	magic_mime = 1
		331	magic_buffer = 2
		332	magic_buffer_mime = 3
214	CODE:	333	CODE:
215	{	334	{
216	static magic_t cookie;	335	STRLEN len;
		336	char *data = SvPVbyte (path_or_data, len);
217		337
218	if (!cookie)	338	if (!magic_cookie[0])
219	{	339	{
220	cookie = magic_open (MAGIC_SYMLINK);	340	magic_cookie[0] = magic_open (MAGIC_SYMLINK);
221		341	magic_cookie[1] = magic_open (MAGIC_SYMLINK \| MAGIC_MIME_TYPE);
222	if (cookie)
223	magic_load (cookie, 0);	342	magic_load (magic_cookie[0], 0);
224	else
225	XSRETURN_UNDEF;
226	}
227
228	RETVAL = magic_file (cookie, path);
229	}
230	OUTPUT:
231	RETVAL
232
233	const char *
234	magic_mime (octet_string path)
235	CODE:
236	{
237	static magic_t cookie;
238
239	if (!cookie)
240	{
241	cookie = magic_open (MAGIC_MIME \| MAGIC_SYMLINK);
242
243	if (cookie)
244	magic_load (cookie, 0);	343	magic_load (magic_cookie[1], 0);
245	else
246	XSRETURN_UNDEF;
247	}	344	}
248		345
249	perlinterp_release ();	346	perlinterp_release ();
250	RETVAL = magic_file (cookie, path);	347
		348	RETVAL = ix & 2
		349	? magic_buffer (magic_cookie[ix & 1], data, len)
		350	: magic_file (magic_cookie[ix & 1], data);
		351
251	perlinterp_acquire ();	352	perlinterp_acquire ();
252	}	353	}
253	OUTPUT:	354	OUTPUT:
254	RETVAL	355	RETVAL
255		356
…		…
310	: angle);	411	: angle);
311	perlinterp_acquire ();	412	perlinterp_acquire ();
312	OUTPUT:	413	OUTPUT:
313	RETVAL	414	RETVAL
314		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
315	GdkPixbuf_noinc *	493	GdkPixbuf_noinc *
316	load_jpeg (SV *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)
317	CODE:	696	CODE:
318	{	697	{
319	struct jpeg_decompress_struct cinfo;	698	struct jpeg_decompress_struct cinfo;
320	struct jpg_err_mgr jerr;	699	struct jpg_err_mgr jerr;
321	guchar *data;
322	int rs;	700	int rs;
323	FILE *fp;
324	volatile GdkPixbuf *pb = 0;	701	volatile GdkPixbuf *pb = 0;
		702	STRLEN data_len;
		703	guchar *data = SvPVbyte (image_data, data_len);
325		704
326	RETVAL = 0;	705	RETVAL = 0;
327
328	fp = fopen (SvPVbyte_nolen (path), "rb");
329
330	if (!fp)
331	XSRETURN_UNDEF;
332		706
333	perlinterp_release ();	707	perlinterp_release ();
334		708
335	cinfo.err = jpeg_std_error (&jerr.err);	709	cinfo.err = jpeg_std_error (&jerr.err);
336		710
337	jerr.err.error_exit = cv_error_exit;	711	jerr.err.error_exit = cv_error_exit;
338	jerr.err.output_message = cv_error_output;	712	jerr.err.output_message = cv_error_output;
339		713
340	if ((rs = setjmp (jerr.setjmp_buffer)))	714	if ((rs = setjmp (jerr.setjmp_buffer)))
341	{	715	{
342	fclose (fp);
343	jpeg_destroy_decompress (&cinfo);	716	jpeg_destroy_decompress (&cinfo);
344		717
345	if (pb)	718	if (pb)
346	g_object_unref ((gpointer)pb);	719	g_object_unref ((gpointer)pb);
347		720
348	perlinterp_acquire ();	721	perlinterp_acquire ();
349	XSRETURN_UNDEF;	722	XSRETURN_UNDEF;
350	}	723	}
351		724
		725	if (!data_len)
		726	longjmp (jerr.setjmp_buffer, 4);
		727
352	jpeg_create_decompress (&cinfo);	728	jpeg_create_decompress (&cinfo);
		729	cv_jpeg_mem_src (&cinfo, data, data_len);
353		730
354	jpeg_stdio_src (&cinfo, fp);
355	jpeg_read_header (&cinfo, TRUE);	731	jpeg_read_header (&cinfo, TRUE);
356		732
357	cinfo.dct_method = JDCT_DEFAULT;	733	cinfo.dct_method = JDCT_DEFAULT;
358	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 */
359	cinfo.do_block_smoothing = FALSE;	735	cinfo.do_block_smoothing = FALSE;
…		…
369	{	745	{
370	cinfo.dct_method = JDCT_FASTEST;	746	cinfo.dct_method = JDCT_FASTEST;
371	cinfo.do_fancy_upsampling = FALSE;	747	cinfo.do_fancy_upsampling = FALSE;
372		748
373	while (cinfo.scale_denom < 8	749	while (cinfo.scale_denom < 8
374	&& cinfo.output_width >= IW*4	750	&& cinfo.output_width >= iw*4
375	&& cinfo.output_height >= IH*4)	751	&& cinfo.output_height >= ih*4)
376	{	752	{
377	cinfo.scale_denom <<= 1;	753	cinfo.scale_denom <<= 1;
378	jpeg_calc_output_dimensions (&cinfo);	754	jpeg_calc_output_dimensions (&cinfo);
379	}	755	}
380	}	756	}
381		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
382	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);
383	if (!RETVAL)	768	if (!RETVAL)
384	longjmp (jerr.setjmp_buffer, 2);	769	longjmp (jerr.setjmp_buffer, 2);
385		770
386	data = gdk_pixbuf_get_pixels (RETVAL);	771	data = gdk_pixbuf_get_pixels (RETVAL);
387	rs = gdk_pixbuf_get_rowstride (RETVAL);	772	rs = gdk_pixbuf_get_rowstride (RETVAL);
388
389	if (cinfo.output_components != 3)
390	longjmp (jerr.setjmp_buffer, 3);
391		773
392	jpeg_start_decompress (&cinfo);	774	jpeg_start_decompress (&cinfo);
393		775
394	while (cinfo.output_scanline < cinfo.output_height)	776	while (cinfo.output_scanline < cinfo.output_height)
395	{	777	{
…		…
402	rp [3] = (guchar *)rp [2] + rs;	784	rp [3] = (guchar *)rp [2] + rs;
403		785
404	jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4);	786	jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4);
405	}	787	}
406		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
407	jpeg_finish_decompress (&cinfo);	818	jpeg_finish_decompress (&cinfo);
408	fclose (fp);
409	jpeg_destroy_decompress (&cinfo);	819	jpeg_destroy_decompress (&cinfo);
410	perlinterp_acquire ();	820	perlinterp_acquire ();
411	}	821	}
412	OUTPUT:	822	OUTPUT:
413	RETVAL	823	RETVAL
…		…
472	CODE:	882	CODE:
473	{	883	{
474	STRLEN plen;	884	STRLEN plen;
475	U8 path = (U8 )SvPV (pathsv, plen);	885	U8 path = (U8 )SvPV (pathsv, plen);
476	U8 *pend = path + plen;	886	U8 *pend = path + plen;
477	U8 dst [plen * 6 * 3], *dstp = dst;	887	U8 dst [plen * 8 * 3], *dstp = dst;
478		888
479	while (path < pend)	889	while (path < pend)
480	{	890	{
481	U8 ch = *path;	891	U8 ch = *path;
482		892
…		…
484	dstp++ = path++;	894	dstp++ = path++;
485	else if (ch >= 'A' && ch <= 'Z')	895	else if (ch >= 'A' && ch <= 'Z')
486	dstp++ = path++ + ('a' - 'A');	896	dstp++ = path++ + ('a' - 'A');
487	else if (ch >= '0' && ch <= '9')	897	else if (ch >= '0' && ch <= '9')
488	{	898	{
		899	/* version sort, up to 8 digits */
489	STRLEN el, nl = 0;	900	STRLEN el, nl = 0;
490	while (path >= '0' && path <= '9' && path < pend)	901	while (path >= '0' && path <= '9' && path < pend)
491	path++, nl++;	902	path++, nl++;
492		903
493	for (el = nl; el < 6; el++)	904	for (el = nl; el < 8; el++)
494	*dstp++ = '0';	905	*dstp++ = '0';
495		906
496	memcpy (dstp, path - nl, nl);	907	memcpy (dstp, path - nl, nl);
497	dstp += nl;	908	dstp += nl;
498	}	909	}

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Comparing CV/CV.xs (file contents): Revision 1.46 by root, Sat Jul 4 05:31:17 2015 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 1.46 by root, Sat Jul 4 05:31:17 2015 UTC vs.
Revision 1.62 by root, Sun Jul 25 11:32:46 2021 UTC