[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 1.55 by root, Sat Dec 23 08:05:32 2017 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	}
…		…
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	/////////////////////////////////////////////////////////////////////////////
190		206
		207	static void cv_ms_init (j_decompress_ptr cinfo)
		208	{
		209	}
		210
		211	static void cv_ms_term (j_decompress_ptr cinfo)
		212	{
		213	}
		214
		215	static boolean cv_ms_fill (j_decompress_ptr cinfo)
		216	{
		217	ERREXIT (cinfo, JERR_INPUT_EMPTY);
		218
		219	return TRUE;
		220	}
		221
		222	static void cv_ms_skip (j_decompress_ptr cinfo, long num_bytes)
		223	{
		224	if (num_bytes > 0)
		225	{
		226	struct jpeg_source_mgr src = (struct jpeg_source_mgr )cinfo->src;
		227
		228	src->next_input_byte += num_bytes;
		229	src->bytes_in_buffer -= num_bytes;
		230	}
		231	}
		232
		233	static void cv_jpeg_mem_src (j_decompress_ptr cinfo, void *buf, size_t buflen)
		234	{
		235	struct jpeg_source_mgr *src;
		236
		237	if (!cinfo->src)
		238	cinfo->src = (struct jpeg_source_mgr *)
		239	(*cinfo->mem->alloc_small) (
		240	(j_common_ptr) cinfo, JPOOL_PERMANENT, sizeof (struct jpeg_source_mgr)
		241	);
		242
		243	src = (struct jpeg_source_mgr *)cinfo->src;
		244	src->init_source = cv_ms_init;
		245	src->fill_input_buffer = cv_ms_fill;
		246	src->skip_input_data = cv_ms_skip;
		247	src->resync_to_restart = jpeg_resync_to_restart;
		248	src->term_source = cv_ms_term;
		249	src->next_input_byte = (JOCTET *)buf;
		250	src->bytes_in_buffer = buflen;
		251	}
		252
		253	/////////////////////////////////////////////////////////////////////////////
		254
191	MODULE = Gtk2::CV PACKAGE = Gtk2::CV	255	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
192		256
193	PROTOTYPES: ENABLE	257	PROTOTYPES: ENABLE
194		258
195	# missing function in perl. really :)	259	# missing function in perl. really :)
…		…
208		272
209	OUTPUT:	273	OUTPUT:
210	RETVAL	274	RETVAL
211		275
212	const char *	276	const char *
213	magic (octet_string path)	277	magic (SV *path_or_data)
		278	ALIAS:
		279	magic = 0
		280	magic_mime = 1
		281	magic_buffer = 2
		282	magic_buffer_mime = 3
214	CODE:	283	CODE:
215	{	284	{
216	static magic_t cookie;	285	STRLEN len;
		286	char *data = SvPVbyte (path_or_data, len);
217		287
218	if (!cookie)	288	if (!magic_cookie[0])
219	{	289	{
220	cookie = magic_open (MAGIC_SYMLINK);	290	magic_cookie[0] = magic_open (MAGIC_SYMLINK);
221		291	magic_cookie[1] = magic_open (MAGIC_SYMLINK \| MAGIC_MIME_TYPE);
222	if (cookie)
223	magic_load (cookie, 0);	292	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);	293	magic_load (magic_cookie[1], 0);
245	else
246	XSRETURN_UNDEF;
247	}	294	}
248		295
249	perlinterp_release ();	296	perlinterp_release ();
250	RETVAL = magic_file (cookie, path);	297
		298	RETVAL = ix & 2
		299	? magic_buffer (magic_cookie[ix & 1], data, len)
		300	: magic_file (magic_cookie[ix & 1], data);
		301
251	perlinterp_acquire ();	302	perlinterp_acquire ();
252	}	303	}
253	OUTPUT:	304	OUTPUT:
254	RETVAL	305	RETVAL
255		306
…		…
310	: angle);	361	: angle);
311	perlinterp_acquire ();	362	perlinterp_acquire ();
312	OUTPUT:	363	OUTPUT:
313	RETVAL	364	RETVAL
314		365
		366	const char *
		367	filetype (SV *image_data)
		368	CODE:
		369	{
		370	STRLEN data_len;
		371	U8 *data = SvPVbyte (image_data, data_len);
		372
		373	if (data_len >= 20
		374	&& data[0] == 0xff
		375	&& data[1] == 0xd8
		376	&& data[2] == 0xff)
		377	RETVAL = "jpg";
		378	else if (data_len >= 12
		379	&& data[ 0] == (U8)'R'
		380	&& data[ 1] == (U8)'I'
		381	&& data[ 2] == (U8)'F'
		382	&& data[ 3] == (U8)'F'
		383	&& data[ 8] == (U8)'W'
		384	&& data[ 9] == (U8)'E'
		385	&& data[10] == (U8)'B'
		386	&& data[11] == (U8)'P')
		387	RETVAL = "webp";
		388	else if (data_len >= 16
		389	&& data[ 0] == 0x89
		390	&& data[ 1] == (U8)'P'
		391	&& data[ 2] == (U8)'N'
		392	&& data[ 3] == (U8)'G'
		393	&& data[ 4] == 0x0d
		394	&& data[ 5] == 0x0a
		395	&& data[ 6] == 0x1a
		396	&& data[ 7] == 0x0a)
		397	RETVAL = "png";
		398	else
		399	RETVAL = "other";
		400	}
		401	OUTPUT:
		402	RETVAL
		403
315	GdkPixbuf_noinc *	404	GdkPixbuf_noinc *
316	load_jpeg (SV *path, int thumbnail=0)	405	decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
		406	CODE:
		407	{
		408	#if WEBP
		409	STRLEN data_size;
		410	int alpha;
		411	WebPData data;
		412	WebPDemuxer *demux;
		413	WebPIterator iter;
		414	WebPDecoderConfig config;
		415	int inw, inh;
		416
		417	data.bytes = (uint8_t *)SvPVbyte (image_data, data_size);
		418	data.size = data_size;
		419
		420	perlinterp_release ();
		421
		422	RETVAL = 0;
		423
		424	if (!(demux = WebPDemux (&data)))
		425	goto err_demux;
		426
		427	if (!WebPDemuxGetFrame (demux, 1, &iter))
		428	goto err_iter;
		429
		430	if (!WebPInitDecoderConfig (&config))
		431	goto err_iter;
		432
		433	config.options.use_threads = 1;
		434
		435	if (WebPGetFeatures (iter.fragment.bytes, iter.fragment.size, &config.input) != VP8_STATUS_OK)
		436	goto err_iter;
		437
		438	inw = config.input.width;
		439	inh = config.input.height;
		440
		441	if (thumbnail)
		442	{
		443	if (inw * ih > inh * iw)
		444	ih = (iw * inh + inw - 1) / inw;
		445	else
		446	iw = (ih * inw + inh - 1) / inh;
		447
		448	config.options.bypass_filtering = 1;
		449	config.options.no_fancy_upsampling = 1;
		450
		451	config.options.use_scaling = 1;
		452	config.options.scaled_width = iw;
		453	config.options.scaled_height = ih;
		454	}
		455	else
		456	{
		457	iw = inw;
		458	ih = inh;
		459	}
		460
		461	alpha = !!config.input.has_alpha;
		462
		463	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, alpha, 8, iw, ih);
		464	if (!RETVAL)
		465	goto err_iter;
		466
		467	config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB;
		468	config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL);
		469	config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL);
		470	config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL);
		471	config.output.is_external_memory = 1;
		472
		473	if (WebPDecode (iter.fragment.bytes, iter.fragment.size, &config) != VP8_STATUS_OK)
		474	{
		475	g_object_unref (RETVAL);
		476	RETVAL = 0;
		477	goto err_iter;
		478	}
		479
		480	err_iter:
		481	WebPDemuxReleaseIterator (&iter);
		482	err_demux:
		483	WebPDemuxDelete (demux);
		484
		485	perlinterp_acquire ();
		486	#else
		487	croak ("load_webp: webp not enabled at compile time");
		488	#endif
		489	}
		490	OUTPUT:
		491	RETVAL
		492
		493	GdkPixbuf_noinc *
		494	decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
317	CODE:	495	CODE:
318	{	496	{
319	struct jpeg_decompress_struct cinfo;	497	struct jpeg_decompress_struct cinfo;
320	struct jpg_err_mgr jerr;	498	struct jpg_err_mgr jerr;
321	guchar *data;
322	int rs;	499	int rs;
323	FILE *fp;
324	volatile GdkPixbuf *pb = 0;	500	volatile GdkPixbuf *pb = 0;
		501	STRLEN data_len;
		502	guchar *data = SvPVbyte (image_data, data_len);
325		503
326	RETVAL = 0;	504	RETVAL = 0;
327
328	fp = fopen (SvPVbyte_nolen (path), "rb");
329
330	if (!fp)
331	XSRETURN_UNDEF;
332		505
333	perlinterp_release ();	506	perlinterp_release ();
334		507
335	cinfo.err = jpeg_std_error (&jerr.err);	508	cinfo.err = jpeg_std_error (&jerr.err);
336		509
337	jerr.err.error_exit = cv_error_exit;	510	jerr.err.error_exit = cv_error_exit;
338	jerr.err.output_message = cv_error_output;	511	jerr.err.output_message = cv_error_output;
339		512
340	if ((rs = setjmp (jerr.setjmp_buffer)))	513	if ((rs = setjmp (jerr.setjmp_buffer)))
341	{	514	{
342	fclose (fp);
343	jpeg_destroy_decompress (&cinfo);	515	jpeg_destroy_decompress (&cinfo);
344		516
345	if (pb)	517	if (pb)
346	g_object_unref ((gpointer)pb);	518	g_object_unref ((gpointer)pb);
347		519
348	perlinterp_acquire ();	520	perlinterp_acquire ();
349	XSRETURN_UNDEF;	521	XSRETURN_UNDEF;
350	}	522	}
351		523
352	jpeg_create_decompress (&cinfo);	524	jpeg_create_decompress (&cinfo);
		525	cv_jpeg_mem_src (&cinfo, data, data_len);
353		526
354	jpeg_stdio_src (&cinfo, fp);
355	jpeg_read_header (&cinfo, TRUE);	527	jpeg_read_header (&cinfo, TRUE);
356		528
357	cinfo.dct_method = JDCT_DEFAULT;	529	cinfo.dct_method = JDCT_DEFAULT;
358	cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */	530	cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */
359	cinfo.do_block_smoothing = FALSE;	531	cinfo.do_block_smoothing = FALSE;
…		…
369	{	541	{
370	cinfo.dct_method = JDCT_FASTEST;	542	cinfo.dct_method = JDCT_FASTEST;
371	cinfo.do_fancy_upsampling = FALSE;	543	cinfo.do_fancy_upsampling = FALSE;
372		544
373	while (cinfo.scale_denom < 8	545	while (cinfo.scale_denom < 8
374	&& cinfo.output_width >= IW*4	546	&& cinfo.output_width >= iw*4
375	&& cinfo.output_height >= IH*4)	547	&& cinfo.output_height >= ih*4)
376	{	548	{
377	cinfo.scale_denom <<= 1;	549	cinfo.scale_denom <<= 1;
378	jpeg_calc_output_dimensions (&cinfo);	550	jpeg_calc_output_dimensions (&cinfo);
379	}	551	}
380	}	552	}
381		553
		554	if (cinfo.output_components != 3)
		555	longjmp (jerr.setjmp_buffer, 3);
		556
		557	if (cinfo.jpeg_color_space == JCS_YCCK \|\| cinfo.jpeg_color_space == JCS_CMYK)
		558	{
		559	cinfo.out_color_space = JCS_CMYK;
		560	cinfo.output_components = 4;
		561	}
		562
382	pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height);	563	pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, cinfo.output_components == 4, 8, cinfo.output_width, cinfo.output_height);
383	if (!RETVAL)	564	if (!RETVAL)
384	longjmp (jerr.setjmp_buffer, 2);	565	longjmp (jerr.setjmp_buffer, 2);
385		566
386	data = gdk_pixbuf_get_pixels (RETVAL);	567	data = gdk_pixbuf_get_pixels (RETVAL);
387	rs = gdk_pixbuf_get_rowstride (RETVAL);	568	rs = gdk_pixbuf_get_rowstride (RETVAL);
388
389	if (cinfo.output_components != 3)
390	longjmp (jerr.setjmp_buffer, 3);
391		569
392	jpeg_start_decompress (&cinfo);	570	jpeg_start_decompress (&cinfo);
393		571
394	while (cinfo.output_scanline < cinfo.output_height)	572	while (cinfo.output_scanline < cinfo.output_height)
395	{	573	{
…		…
402	rp [3] = (guchar *)rp [2] + rs;	580	rp [3] = (guchar *)rp [2] + rs;
403		581
404	jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4);	582	jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4);
405	}	583	}
406		584
		585	if (cinfo.out_color_space == JCS_CMYK)
		586	{
		587	guchar end = data + cinfo.output_height rs;
		588
		589	while (data < end)
		590	{
		591	U32 c = data [0];
		592	U32 m = data [1];
		593	U32 y = data [2];
		594	U32 k = data [3];
		595
		596	if (0)
		597	if (cinfo.Adobe_transform == 2)
		598	{
		599	c ^= 0xff;
		600	m ^= 0xff;
		601	y ^= 0xff;
		602	k ^= 0xff;
		603	}
		604
		605	data [0] = (c * k + 0x80) / 0xff;
		606	data [1] = (m * k + 0x80) / 0xff;
		607	data [2] = (y * k + 0x80) / 0xff;
		608	data [3] = 0xff;
		609
		610	data += 4;
		611	}
		612	}
		613
407	jpeg_finish_decompress (&cinfo);	614	jpeg_finish_decompress (&cinfo);
408	fclose (fp);
409	jpeg_destroy_decompress (&cinfo);	615	jpeg_destroy_decompress (&cinfo);
410	perlinterp_acquire ();	616	perlinterp_acquire ();
411	}	617	}
412	OUTPUT:	618	OUTPUT:
413	RETVAL	619	RETVAL

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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 1.55 by root, Sat Dec 23 08:05:32 2017 UTC

Diff Legend

Comparing CV/CV.xs (file contents):
Revision 1.46 by root, Sat Jul 4 05:31:17 2015 UTC vs.
Revision 1.55 by root, Sat Dec 23 08:05:32 2017 UTC