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

Comparing CV/CV.xs (file contents):
Revision 1.48 by root, Wed May 24 05:00:57 2017 UTC vs.
Revision 1.54 by root, Sat Dec 23 08:04:48 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;
…		…
156	if (!--a85_cnt)	166	if (!--a85_cnt)
157	{	167	{
158	a85_cnt = 4;	168	a85_cnt = 4;
159	if (a85_val)	169	if (a85_val)
160	{	170	{
161	a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85;	171	a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85;
162	a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85;	172	a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85;
163	a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85;	173	a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85;
164	a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85;	174	a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85;
165	a85_ptr[0] = (a85_val ) + 33;	175	a85_ptr[0] = (a85_val ) + 33;
166		176
167	a85_ptr += 5;	177	a85_ptr += 5;
168	}	178	}
…		…
192	PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);	202	PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);
193	}	203	}
194		204
195	/////////////////////////////////////////////////////////////////////////////	205	/////////////////////////////////////////////////////////////////////////////
196		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
197	MODULE = Gtk2::CV PACKAGE = Gtk2::CV	255	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
198		256
199	PROTOTYPES: ENABLE	257	PROTOTYPES: ENABLE
200		258
201	# missing function in perl. really :)	259	# missing function in perl. really :)
…		…
214		272
215	OUTPUT:	273	OUTPUT:
216	RETVAL	274	RETVAL
217		275
218	const char *	276	const char *
219	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
220	CODE:	283	CODE:
221	{	284	{
222	static magic_t cookie;	285	STRLEN len;
		286	char *data = SvPVbyte (path_or_data, len);
223		287
224	if (!cookie)	288	if (!magic_cookie[0])
225	{	289	{
226	cookie = magic_open (MAGIC_SYMLINK);	290	magic_cookie[0] = magic_open (MAGIC_SYMLINK);
227		291	magic_cookie[1] = magic_open (MAGIC_SYMLINK \| MAGIC_MIME_TYPE);
228	if (cookie)
229	magic_load (cookie, 0);	292	magic_load (magic_cookie[0], 0);
230	else
231	XSRETURN_UNDEF;
232	}
233
234	RETVAL = magic_file (cookie, path);
235	}
236	OUTPUT:
237	RETVAL
238
239	const char *
240	magic_mime (octet_string path)
241	CODE:
242	{
243	static magic_t cookie;
244
245	if (!cookie)
246	{
247	cookie = magic_open (MAGIC_MIME \| MAGIC_SYMLINK);
248
249	if (cookie)
250	magic_load (cookie, 0);	293	magic_load (magic_cookie[1], 0);
251	else
252	XSRETURN_UNDEF;
253	}	294	}
254		295
255	perlinterp_release ();	296	perlinterp_release ();
256	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
257	perlinterp_acquire ();	302	perlinterp_acquire ();
258	}	303	}
259	OUTPUT:	304	OUTPUT:
260	RETVAL	305	RETVAL
261		306
…		…
316	: angle);	361	: angle);
317	perlinterp_acquire ();	362	perlinterp_acquire ();
318	OUTPUT:	363	OUTPUT:
319	RETVAL	364	RETVAL
320		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
321	GdkPixbuf_noinc *	404	GdkPixbuf_noinc *
		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
		484	perlinterp_acquire ();
		485	#else
		486	croak ("load_webp: webp not enabled at compile time");
		487	#endif
		488	}
		489	OUTPUT:
		490	RETVAL
		491
		492	GdkPixbuf_noinc *
322	load_jpeg (SV *path, int thumbnail = 0, int iw = 0, int ih = 0)	493	decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
323	CODE:	494	CODE:
324	{	495	{
325	struct jpeg_decompress_struct cinfo;	496	struct jpeg_decompress_struct cinfo;
326	struct jpg_err_mgr jerr;	497	struct jpg_err_mgr jerr;
327	guchar *data;
328	int rs;	498	int rs;
329	FILE *fp;
330	volatile GdkPixbuf *pb = 0;	499	volatile GdkPixbuf *pb = 0;
		500	STRLEN data_len;
		501	guchar *data = SvPVbyte (image_data, data_len);
331		502
332	RETVAL = 0;	503	RETVAL = 0;
333
334	fp = fopen (SvPVbyte_nolen (path), "rb");
335
336	if (!fp)
337	XSRETURN_UNDEF;
338		504
339	perlinterp_release ();	505	perlinterp_release ();
340		506
341	cinfo.err = jpeg_std_error (&jerr.err);	507	cinfo.err = jpeg_std_error (&jerr.err);
342		508
343	jerr.err.error_exit = cv_error_exit;	509	jerr.err.error_exit = cv_error_exit;
344	jerr.err.output_message = cv_error_output;	510	jerr.err.output_message = cv_error_output;
345		511
346	if ((rs = setjmp (jerr.setjmp_buffer)))	512	if ((rs = setjmp (jerr.setjmp_buffer)))
347	{	513	{
348	fclose (fp);
349	jpeg_destroy_decompress (&cinfo);	514	jpeg_destroy_decompress (&cinfo);
350		515
351	if (pb)	516	if (pb)
352	g_object_unref ((gpointer)pb);	517	g_object_unref ((gpointer)pb);
353		518
354	perlinterp_acquire ();	519	perlinterp_acquire ();
355	XSRETURN_UNDEF;	520	XSRETURN_UNDEF;
356	}	521	}
357		522
358	jpeg_create_decompress (&cinfo);	523	jpeg_create_decompress (&cinfo);
		524	cv_jpeg_mem_src (&cinfo, data, data_len);
359		525
360	jpeg_stdio_src (&cinfo, fp);
361	jpeg_read_header (&cinfo, TRUE);	526	jpeg_read_header (&cinfo, TRUE);
362		527
363	cinfo.dct_method = JDCT_DEFAULT;	528	cinfo.dct_method = JDCT_DEFAULT;
364	cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */	529	cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */
365	cinfo.do_block_smoothing = FALSE;	530	cinfo.do_block_smoothing = FALSE;
…		…
425	U32 c = data [0];	590	U32 c = data [0];
426	U32 m = data [1];	591	U32 m = data [1];
427	U32 y = data [2];	592	U32 y = data [2];
428	U32 k = data [3];	593	U32 k = data [3];
429		594
		595	if (0)
		596	if (cinfo.Adobe_transform == 2)
		597	{
		598	c ^= 0xff;
		599	m ^= 0xff;
		600	y ^= 0xff;
		601	k ^= 0xff;
		602	}
		603
430	data [0] = c * k / 255;	604	data [0] = (c * k + 0x80) / 0xff;
431	data [1] = m * k / 255;	605	data [1] = (m * k + 0x80) / 0xff;
432	data [2] = y * k / 255;	606	data [2] = (y * k + 0x80) / 0xff;
433	data [3] = 255;	607	data [3] = 0xff;
434		608
435	data += 4;	609	data += 4;
436	}	610	}
437	}	611	}
438		612
439	jpeg_finish_decompress (&cinfo);	613	jpeg_finish_decompress (&cinfo);
440	fclose (fp);
441	jpeg_destroy_decompress (&cinfo);	614	jpeg_destroy_decompress (&cinfo);
442	perlinterp_acquire ();	615	perlinterp_acquire ();
443	}	616	}
444	OUTPUT:	617	OUTPUT:
445	RETVAL	618	RETVAL

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing CV/CV.xs (file contents): Revision 1.48 by root, Wed May 24 05:00:57 2017 UTC vs. Revision 1.54 by root, Sat Dec 23 08:04:48 2017 UTC

Diff Legend

Comparing CV/CV.xs (file contents):
Revision 1.48 by root, Wed May 24 05:00:57 2017 UTC vs.
Revision 1.54 by root, Sat Dec 23 08:04:48 2017 UTC