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

Comparing CV/CV.xs (file contents):
Revision 1.47 by root, Tue Jun 7 06:59:57 2016 UTC vs.
Revision 1.57 by root, Mon Jul 30 22:55:46 2018 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
21	#include "perlmulticore.h"	29	#include "perlmulticore.h"
22		30
23	#define IW 80 /* MUST match Schnauzer.pm! */	31	#define IW 80 /* MUST match Schnauzer.pm! */
24	#define IH 60 /* MUST match Schnauzer.pm! */	32	#define IH 60 /* MUST match Schnauzer.pm! */
25		33
…		…
28	#define LINELENGTH 240	36	#define LINELENGTH 240
29		37
30	#define ELLIPSIS "\xe2\x80\xa6"	38	#define ELLIPSIS "\xe2\x80\xa6"
31		39
32	typedef char *octet_string;	40	typedef char *octet_string;
		41
		42	static magic_t magic_cookie[2]; /* !mime, mime */
33		43
34	struct jpg_err_mgr	44	struct jpg_err_mgr
35	{	45	{
36	struct jpeg_error_mgr err;	46	struct jpeg_error_mgr err;
37	jmp_buf setjmp_buffer;	47	jmp_buf setjmp_buffer;
38	};	48	};
39		49
40	static void	50	static void
41	cv_error_exit (j_common_ptr cinfo)	51	cv_error_exit (j_common_ptr cinfo)
42	{	52	{
		53	cinfo->err->output_message (cinfo);
43	longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99);	54	longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99);
44	}	55	}
45		56
46	static void	57	static void
47	cv_error_output (j_common_ptr cinfo)	58	cv_error_output (j_common_ptr cinfo)
48	{	59	{
		60	char msg[JMSG_LENGTH_MAX];
		61
		62	cinfo->err->format_message (cinfo, msg);
		63
		64	fprintf (stderr, "JPEG decoding error: %s\n", msg);
49	return;	65	return;
50	}	66	}
51		67
52	static void	68	static void
53	rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b,	69	rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b,
…		…
150	if (!--a85_cnt)	166	if (!--a85_cnt)
151	{	167	{
152	a85_cnt = 4;	168	a85_cnt = 4;
153	if (a85_val)	169	if (a85_val)
154	{	170	{
155	a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85;	171	a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85;
156	a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85;	172	a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85;
157	a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85;	173	a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85;
158	a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85;	174	a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85;
159	a85_ptr[0] = (a85_val ) + 33;	175	a85_ptr[0] = (a85_val ) + 33;
160		176
161	a85_ptr += 5;	177	a85_ptr += 5;
162	}	178	}
…		…
185		201
186	PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);	202	PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);
187	}	203	}
188		204
189	/////////////////////////////////////////////////////////////////////////////	205	/////////////////////////////////////////////////////////////////////////////
		206	// memory source for libjpeg
		207
		208	static void cv_ms_init (j_decompress_ptr cinfo)
		209	{
		210	}
		211
		212	static void cv_ms_term (j_decompress_ptr cinfo)
		213	{
		214	}
		215
		216	static boolean cv_ms_fill (j_decompress_ptr cinfo)
		217	{
		218	// unexpected EOF, warn and generate fake EOI marker
		219
		220	WARNMS (cinfo, JWRN_JPEG_EOF);
		221
		222	struct jpeg_source_mgr src = (struct jpeg_source_mgr )cinfo->src;
		223
		224	static const JOCTET eoi[] = { 0xFF, JPEG_EOI };
		225
		226	src->next_input_byte = eoi;
		227	src->bytes_in_buffer = sizeof (eoi);
		228
		229	return TRUE;
		230	}
		231
		232	static void cv_ms_skip (j_decompress_ptr cinfo, long num_bytes)
		233	{
		234	struct jpeg_source_mgr src = (struct jpeg_source_mgr )cinfo->src;
		235
		236	src->next_input_byte += num_bytes;
		237	src->bytes_in_buffer -= num_bytes;
		238	}
		239
		240	static void cv_jpeg_mem_src (j_decompress_ptr cinfo, void *buf, size_t buflen)
		241	{
		242	struct jpeg_source_mgr *src;
		243
		244	if (!cinfo->src)
		245	cinfo->src = (struct jpeg_source_mgr *)
		246	(*cinfo->mem->alloc_small) (
		247	(j_common_ptr) cinfo, JPOOL_PERMANENT, sizeof (struct jpeg_source_mgr)
		248	);
		249
		250	src = (struct jpeg_source_mgr *)cinfo->src;
		251	src->init_source = cv_ms_init;
		252	src->fill_input_buffer = cv_ms_fill;
		253	src->skip_input_data = cv_ms_skip;
		254	src->resync_to_restart = jpeg_resync_to_restart;
		255	src->term_source = cv_ms_term;
		256	src->next_input_byte = (JOCTET *)buf;
		257	src->bytes_in_buffer = buflen;
		258	}
		259
		260	/////////////////////////////////////////////////////////////////////////////
190		261
191	MODULE = Gtk2::CV PACKAGE = Gtk2::CV	262	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
192		263
193	PROTOTYPES: ENABLE	264	PROTOTYPES: ENABLE
194		265
		266	# calculate the common prefix length of two strings
195	# missing function in perl. really :)	267	# missing function in perl. really :)
196	int	268	int
197	common_prefix_length (a, b)	269	common_prefix_length (a, b)
198	unsigned char a = (unsigned char )SvPVutf8_nolen ($arg);	270	unsigned char a = (unsigned char )SvPVutf8_nolen ($arg);
199	unsigned char b = (unsigned char )SvPVutf8_nolen ($arg);	271	unsigned char b = (unsigned char )SvPVutf8_nolen ($arg);
…		…
208		280
209	OUTPUT:	281	OUTPUT:
210	RETVAL	282	RETVAL
211		283
212	const char *	284	const char *
213	magic (octet_string path)	285	magic (SV *path_or_data)
		286	ALIAS:
		287	magic = 0
		288	magic_mime = 1
		289	magic_buffer = 2
		290	magic_buffer_mime = 3
214	CODE:	291	CODE:
215	{	292	{
216	static magic_t cookie;	293	STRLEN len;
		294	char *data = SvPVbyte (path_or_data, len);
217		295
218	if (!cookie)	296	if (!magic_cookie[0])
219	{	297	{
220	cookie = magic_open (MAGIC_SYMLINK);	298	magic_cookie[0] = magic_open (MAGIC_SYMLINK);
221		299	magic_cookie[1] = magic_open (MAGIC_SYMLINK \| MAGIC_MIME_TYPE);
222	if (cookie)
223	magic_load (cookie, 0);	300	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);	301	magic_load (magic_cookie[1], 0);
245	else
246	XSRETURN_UNDEF;
247	}	302	}
248		303
249	perlinterp_release ();	304	perlinterp_release ();
250	RETVAL = magic_file (cookie, path);	305
		306	RETVAL = ix & 2
		307	? magic_buffer (magic_cookie[ix & 1], data, len)
		308	: magic_file (magic_cookie[ix & 1], data);
		309
251	perlinterp_acquire ();	310	perlinterp_acquire ();
252	}	311	}
253	OUTPUT:	312	OUTPUT:
254	RETVAL	313	RETVAL
255		314
…		…
310	: angle);	369	: angle);
311	perlinterp_acquire ();	370	perlinterp_acquire ();
312	OUTPUT:	371	OUTPUT:
313	RETVAL	372	RETVAL
314		373
		374	const char *
		375	filetype (SV *image_data)
		376	CODE:
		377	{
		378	STRLEN data_len;
		379	U8 *data = SvPVbyte (image_data, data_len);
		380
		381	if (data_len >= 20
		382	&& data[0] == 0xff
		383	&& data[1] == 0xd8
		384	&& data[2] == 0xff)
		385	RETVAL = "jpg";
		386	else if (data_len >= 12
		387	&& data[ 0] == (U8)'R'
		388	&& data[ 1] == (U8)'I'
		389	&& data[ 2] == (U8)'F'
		390	&& data[ 3] == (U8)'F'
		391	&& data[ 8] == (U8)'W'
		392	&& data[ 9] == (U8)'E'
		393	&& data[10] == (U8)'B'
		394	&& data[11] == (U8)'P')
		395	RETVAL = "webp";
		396	else if (data_len >= 16
		397	&& data[ 0] == 0x89
		398	&& data[ 1] == (U8)'P'
		399	&& data[ 2] == (U8)'N'
		400	&& data[ 3] == (U8)'G'
		401	&& data[ 4] == 0x0d
		402	&& data[ 5] == 0x0a
		403	&& data[ 6] == 0x1a
		404	&& data[ 7] == 0x0a)
		405	RETVAL = "png";
		406	else
		407	RETVAL = "other";
		408	}
		409	OUTPUT:
		410	RETVAL
		411
315	GdkPixbuf_noinc *	412	GdkPixbuf_noinc *
		413	decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
		414	CODE:
		415	{
		416	#if WEBP
		417	STRLEN data_size;
		418	int alpha;
		419	WebPData data;
		420	WebPDemuxer *demux;
		421	WebPIterator iter;
		422	WebPDecoderConfig config;
		423	int inw, inh;
		424
		425	data.bytes = (uint8_t *)SvPVbyte (image_data, data_size);
		426	data.size = data_size;
		427
		428	perlinterp_release ();
		429
		430	RETVAL = 0;
		431
		432	if (!(demux = WebPDemux (&data)))
		433	goto err_demux;
		434
		435	if (!WebPDemuxGetFrame (demux, 1, &iter))
		436	goto err_iter;
		437
		438	if (!WebPInitDecoderConfig (&config))
		439	goto err_iter;
		440
		441	config.options.use_threads = 1;
		442
		443	if (WebPGetFeatures (iter.fragment.bytes, iter.fragment.size, &config.input) != VP8_STATUS_OK)
		444	goto err_iter;
		445
		446	inw = config.input.width;
		447	inh = config.input.height;
		448
		449	if (thumbnail)
		450	{
		451	if (inw * ih > inh * iw)
		452	ih = (iw * inh + inw - 1) / inw;
		453	else
		454	iw = (ih * inw + inh - 1) / inh;
		455
		456	config.options.bypass_filtering = 1;
		457	config.options.no_fancy_upsampling = 1;
		458
		459	config.options.use_scaling = 1;
		460	config.options.scaled_width = iw;
		461	config.options.scaled_height = ih;
		462	}
		463	else
		464	{
		465	iw = inw;
		466	ih = inh;
		467	}
		468
		469	alpha = !!config.input.has_alpha;
		470
		471	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, alpha, 8, iw, ih);
		472	if (!RETVAL)
		473	goto err_iter;
		474
		475	config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB;
		476	config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL);
		477	config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL);
		478	config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL);
		479	config.output.is_external_memory = 1;
		480
		481	if (WebPDecode (iter.fragment.bytes, iter.fragment.size, &config) != VP8_STATUS_OK)
		482	{
		483	g_object_unref (RETVAL);
		484	RETVAL = 0;
		485	goto err_iter;
		486	}
		487
		488	err_iter:
		489	WebPDemuxReleaseIterator (&iter);
		490	err_demux:
		491	WebPDemuxDelete (demux);
		492
		493	perlinterp_acquire ();
		494	#else
		495	croak ("load_webp: webp not enabled at compile time");
		496	#endif
		497	}
		498	OUTPUT:
		499	RETVAL
		500
		501	GdkPixbuf_noinc *
316	load_jpeg (SV *path, int thumbnail = 0, int iw = 0, int ih = 0)	502	decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
317	CODE:	503	CODE:
318	{	504	{
319	struct jpeg_decompress_struct cinfo;	505	struct jpeg_decompress_struct cinfo;
320	struct jpg_err_mgr jerr;	506	struct jpg_err_mgr jerr;
321	guchar *data;
322	int rs;	507	int rs;
323	FILE *fp;
324	volatile GdkPixbuf *pb = 0;	508	volatile GdkPixbuf *pb = 0;
		509	STRLEN data_len;
		510	guchar *data = SvPVbyte (image_data, data_len);
325		511
326	RETVAL = 0;	512	RETVAL = 0;
327
328	fp = fopen (SvPVbyte_nolen (path), "rb");
329
330	if (!fp)
331	XSRETURN_UNDEF;
332		513
333	perlinterp_release ();	514	perlinterp_release ();
334		515
335	cinfo.err = jpeg_std_error (&jerr.err);	516	cinfo.err = jpeg_std_error (&jerr.err);
336		517
337	jerr.err.error_exit = cv_error_exit;	518	jerr.err.error_exit = cv_error_exit;
338	jerr.err.output_message = cv_error_output;	519	jerr.err.output_message = cv_error_output;
339		520
340	if ((rs = setjmp (jerr.setjmp_buffer)))	521	if ((rs = setjmp (jerr.setjmp_buffer)))
341	{	522	{
342	fclose (fp);
343	jpeg_destroy_decompress (&cinfo);	523	jpeg_destroy_decompress (&cinfo);
344		524
345	if (pb)	525	if (pb)
346	g_object_unref ((gpointer)pb);	526	g_object_unref ((gpointer)pb);
347		527
348	perlinterp_acquire ();	528	perlinterp_acquire ();
349	XSRETURN_UNDEF;	529	XSRETURN_UNDEF;
350	}	530	}
351		531
		532	if (!data_len)
		533	longjmp (jerr.setjmp_buffer, 4);
		534
352	jpeg_create_decompress (&cinfo);	535	jpeg_create_decompress (&cinfo);
		536	cv_jpeg_mem_src (&cinfo, data, data_len);
353		537
354	jpeg_stdio_src (&cinfo, fp);
355	jpeg_read_header (&cinfo, TRUE);	538	jpeg_read_header (&cinfo, TRUE);
356		539
357	cinfo.dct_method = JDCT_DEFAULT;	540	cinfo.dct_method = JDCT_DEFAULT;
358	cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */	541	cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */
359	cinfo.do_block_smoothing = FALSE;	542	cinfo.do_block_smoothing = FALSE;
…		…
377	cinfo.scale_denom <<= 1;	560	cinfo.scale_denom <<= 1;
378	jpeg_calc_output_dimensions (&cinfo);	561	jpeg_calc_output_dimensions (&cinfo);
379	}	562	}
380	}	563	}
381		564
		565	if (cinfo.output_components != 3)
		566	longjmp (jerr.setjmp_buffer, 3);
		567
		568	if (cinfo.jpeg_color_space == JCS_YCCK \|\| cinfo.jpeg_color_space == JCS_CMYK)
		569	{
		570	cinfo.out_color_space = JCS_CMYK;
		571	cinfo.output_components = 4;
		572	}
		573
382	pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height);	574	pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, cinfo.output_components == 4, 8, cinfo.output_width, cinfo.output_height);
383	if (!RETVAL)	575	if (!RETVAL)
384	longjmp (jerr.setjmp_buffer, 2);	576	longjmp (jerr.setjmp_buffer, 2);
385		577
386	data = gdk_pixbuf_get_pixels (RETVAL);	578	data = gdk_pixbuf_get_pixels (RETVAL);
387	rs = gdk_pixbuf_get_rowstride (RETVAL);	579	rs = gdk_pixbuf_get_rowstride (RETVAL);
388
389	if (cinfo.output_components != 3)
390	longjmp (jerr.setjmp_buffer, 3);
391		580
392	jpeg_start_decompress (&cinfo);	581	jpeg_start_decompress (&cinfo);
393		582
394	while (cinfo.output_scanline < cinfo.output_height)	583	while (cinfo.output_scanline < cinfo.output_height)
395	{	584	{
…		…
402	rp [3] = (guchar *)rp [2] + rs;	591	rp [3] = (guchar *)rp [2] + rs;
403		592
404	jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4);	593	jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4);
405	}	594	}
406		595
		596	if (cinfo.out_color_space == JCS_CMYK)
		597	{
		598	guchar end = data + cinfo.output_height rs;
		599
		600	while (data < end)
		601	{
		602	U32 c = data [0];
		603	U32 m = data [1];
		604	U32 y = data [2];
		605	U32 k = data [3];
		606
		607	if (0)
		608	if (cinfo.Adobe_transform == 2)
		609	{
		610	c ^= 0xff;
		611	m ^= 0xff;
		612	y ^= 0xff;
		613	k ^= 0xff;
		614	}
		615
		616	data [0] = (c * k + 0x80) / 0xff;
		617	data [1] = (m * k + 0x80) / 0xff;
		618	data [2] = (y * k + 0x80) / 0xff;
		619	data [3] = 0xff;
		620
		621	data += 4;
		622	}
		623	}
		624
407	jpeg_finish_decompress (&cinfo);	625	jpeg_finish_decompress (&cinfo);
408	fclose (fp);
409	jpeg_destroy_decompress (&cinfo);	626	jpeg_destroy_decompress (&cinfo);
410	perlinterp_acquire ();	627	perlinterp_acquire ();
411	}	628	}
412	OUTPUT:	629	OUTPUT:
413	RETVAL	630	RETVAL

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Comparing CV/CV.xs (file contents): Revision 1.47 by root, Tue Jun 7 06:59:57 2016 UTC vs. Revision 1.57 by root, Mon Jul 30 22:55:46 2018 UTC

Diff Legend

Comparing CV/CV.xs (file contents):
Revision 1.47 by root, Tue Jun 7 06:59:57 2016 UTC vs.
Revision 1.57 by root, Mon Jul 30 22:55:46 2018 UTC