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

Comparing CV/CV.xs (file contents):
Revision 1.50 by root, Sat Dec 23 03:30:28 2017 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>
14	#include <gdk/gdkx.h>	16	#include <gdk/gdkx.h>
15	#include <gdk-pixbuf/gdk-pixbuf.h>	17	#include <gdk-pixbuf/gdk-pixbuf.h>
16		18
…		…
18	#include <gtk2perl.h>	20	#include <gtk2perl.h>
19		21
20	#include <assert.h>	22	#include <assert.h>
21		23
22	#if WEBP	24	#if WEBP
		25	#include <webp/demux.h>
23	#include <webp/decode.h>	26	#include <webp/decode.h>
24	#endif	27	#endif
25		28
26	#include "perlmulticore.h"	29	#include "perlmulticore.h"
27		30
…		…
33	#define LINELENGTH 240	36	#define LINELENGTH 240
34		37
35	#define ELLIPSIS "\xe2\x80\xa6"	38	#define ELLIPSIS "\xe2\x80\xa6"
36		39
37	typedef char *octet_string;	40	typedef char *octet_string;
		41
		42	static magic_t magic_cookie[2]; /* !mime, mime */
38		43
39	struct jpg_err_mgr	44	struct jpg_err_mgr
40	{	45	{
41	struct jpeg_error_mgr err;	46	struct jpeg_error_mgr err;
42	jmp_buf setjmp_buffer;	47	jmp_buf setjmp_buffer;
…		…
196		201
197	PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);	202	PerlIO_write (fp, a85_buf, a85_ptr - a85_buf);
198	}	203	}
199		204
200	/////////////////////////////////////////////////////////////////////////////	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	/////////////////////////////////////////////////////////////////////////////
201		261
202	MODULE = Gtk2::CV PACKAGE = Gtk2::CV	262	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
203		263
204	PROTOTYPES: ENABLE	264	PROTOTYPES: ENABLE
205		265
		266	# calculate the common prefix length of two strings
206	# missing function in perl. really :)	267	# missing function in perl. really :)
207	int	268	int
208	common_prefix_length (a, b)	269	common_prefix_length (a, b)
209	unsigned char a = (unsigned char )SvPVutf8_nolen ($arg);	270	unsigned char a = (unsigned char )SvPVutf8_nolen ($arg);
210	unsigned char b = (unsigned char )SvPVutf8_nolen ($arg);	271	unsigned char b = (unsigned char )SvPVutf8_nolen ($arg);
…		…
219		280
220	OUTPUT:	281	OUTPUT:
221	RETVAL	282	RETVAL
222		283
223	const char *	284	const char *
224	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
225	CODE:	291	CODE:
226	{	292	{
227	static magic_t cookie;	293	STRLEN len;
		294	char *data = SvPVbyte (path_or_data, len);
228		295
229	if (!cookie)	296	if (!magic_cookie[0])
230	{	297	{
231	cookie = magic_open (MAGIC_SYMLINK);	298	magic_cookie[0] = magic_open (MAGIC_SYMLINK);
232		299	magic_cookie[1] = magic_open (MAGIC_SYMLINK \| MAGIC_MIME_TYPE);
233	if (cookie)
234	magic_load (cookie, 0);	300	magic_load (magic_cookie[0], 0);
235	else
236	XSRETURN_UNDEF;
237	}
238
239	RETVAL = magic_file (cookie, path);
240	}
241	OUTPUT:
242	RETVAL
243
244	const char *
245	magic_mime (octet_string path)
246	CODE:
247	{
248	static magic_t cookie;
249
250	if (!cookie)
251	{
252	cookie = magic_open (MAGIC_MIME \| MAGIC_SYMLINK);
253
254	if (cookie)
255	magic_load (cookie, 0);	301	magic_load (magic_cookie[1], 0);
256	else
257	XSRETURN_UNDEF;
258	}	302	}
259		303
260	perlinterp_release ();	304	perlinterp_release ();
261	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
262	perlinterp_acquire ();	310	perlinterp_acquire ();
263	}	311	}
264	OUTPUT:	312	OUTPUT:
265	RETVAL	313	RETVAL
266		314
…		…
321	: angle);	369	: angle);
322	perlinterp_acquire ();	370	perlinterp_acquire ();
323	OUTPUT:	371	OUTPUT:
324	RETVAL	372	RETVAL
325		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
326	GdkPixbuf_noinc *	412	GdkPixbuf_noinc *
327	load_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)	413	decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
328	CODE:	414	CODE:
329	{	415	{
330	#if WEBP	416	#if WEBP
331	STRLEN data_size;	417	STRLEN data_size;
332	guchar *data = SvPVbyte (image_data, data_size);
333	int alpha;	418	int alpha;
		419	WebPData data;
		420	WebPDemuxer *demux;
		421	WebPIterator iter;
334	WebPDecoderConfig config;	422	WebPDecoderConfig config;
		423	int inw, inh;
		424
		425	data.bytes = (uint8_t *)SvPVbyte (image_data, data_size);
		426	data.size = data_size;
335		427
336	perlinterp_release ();	428	perlinterp_release ();
337		429
338	RETVAL = 0;	430	RETVAL = 0;
339		431
		432	if (!(demux = WebPDemux (&data)))
		433	goto err_demux;
		434
		435	if (!WebPDemuxGetFrame (demux, 1, &iter))
		436	goto err_iter;
		437
340	if (!WebPInitDecoderConfig (&config))	438	if (!WebPInitDecoderConfig (&config))
341	goto err;	439	goto err_iter;
342		440
343	config.options.use_threads = 1;	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;
344		448
345	if (thumbnail)	449	if (thumbnail)
346	{	450	{
		451	if (inw * ih > inh * iw)
		452	ih = (iw * inh + inw - 1) / inw;
		453	else
		454	iw = (ih * inw + inh - 1) / inh;
		455
347	config.options.bypass_filtering = 1;	456	config.options.bypass_filtering = 1;
348	config.options.no_fancy_upsampling = 1;	457	config.options.no_fancy_upsampling = 1;
349		458
350	config.options.use_scaling = 1;	459	config.options.use_scaling = 1;
351	config.options.scaled_width = iw;	460	config.options.scaled_width = iw;
352	config.options.scaled_height = ih;	461	config.options.scaled_height = ih;
353	}	462	}
354	else	463	else
355	{	464	{
356	iw = config.input.width;	465	iw = inw;
357	ih = config.input.height;	466	ih = inh;
358	}	467	}
359		468
360	if (WebPGetFeatures (data, data_size, &config.input) != VP8_STATUS_OK)
361	goto err;
362
363	alpha = config.input.has_alpha;	469	alpha = !!config.input.has_alpha;
364		470
365	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!alpha, 8, iw, ih);	471	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, alpha, 8, iw, ih);
366	if (!RETVAL)	472	if (!RETVAL)
367	goto err;	473	goto err_iter;
368		474
369	config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB;	475	config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB;
370	config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL);	476	config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL);
371	config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL);	477	config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL);
372	config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL);	478	config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL);
373	config.output.is_external_memory = 1;	479	config.output.is_external_memory = 1;
374		480
375	if (WebPDecode (data, data_size, &config) != VP8_STATUS_OK)	481	if (WebPDecode (iter.fragment.bytes, iter.fragment.size, &config) != VP8_STATUS_OK)
376	{	482	{
377	g_object_unref (RETVAL);	483	g_object_unref (RETVAL);
378	RETVAL = 0;	484	RETVAL = 0;
379	goto err;	485	goto err_iter;
380	}	486	}
381		487
382	err:	488	err_iter:
		489	WebPDemuxReleaseIterator (&iter);
		490	err_demux:
		491	WebPDemuxDelete (demux);
		492
383	perlinterp_acquire ();	493	perlinterp_acquire ();
384	#else	494	#else
385	croak ("load_webp: webp not enabled at compile time");	495	croak ("load_webp: webp not enabled at compile time");
386	#endif	496	#endif
387	}	497	}
388	OUTPUT:	498	OUTPUT:
389	RETVAL	499	RETVAL
390		500
391	GdkPixbuf_noinc *	501	GdkPixbuf_noinc *
392	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)
393	CODE:	503	CODE:
394	{	504	{
395	struct jpeg_decompress_struct cinfo;	505	struct jpeg_decompress_struct cinfo;
396	struct jpg_err_mgr jerr;	506	struct jpg_err_mgr jerr;
397	guchar *data;
398	int rs;	507	int rs;
399	FILE *fp;
400	volatile GdkPixbuf *pb = 0;	508	volatile GdkPixbuf *pb = 0;
		509	STRLEN data_len;
		510	guchar *data = SvPVbyte (image_data, data_len);
401		511
402	RETVAL = 0;	512	RETVAL = 0;
403
404	fp = fopen (SvPVbyte_nolen (path), "rb");
405
406	if (!fp)
407	XSRETURN_UNDEF;
408		513
409	perlinterp_release ();	514	perlinterp_release ();
410		515
411	cinfo.err = jpeg_std_error (&jerr.err);	516	cinfo.err = jpeg_std_error (&jerr.err);
412		517
413	jerr.err.error_exit = cv_error_exit;	518	jerr.err.error_exit = cv_error_exit;
414	jerr.err.output_message = cv_error_output;	519	jerr.err.output_message = cv_error_output;
415		520
416	if ((rs = setjmp (jerr.setjmp_buffer)))	521	if ((rs = setjmp (jerr.setjmp_buffer)))
417	{	522	{
418	fclose (fp);
419	jpeg_destroy_decompress (&cinfo);	523	jpeg_destroy_decompress (&cinfo);
420		524
421	if (pb)	525	if (pb)
422	g_object_unref ((gpointer)pb);	526	g_object_unref ((gpointer)pb);
423		527
424	perlinterp_acquire ();	528	perlinterp_acquire ();
425	XSRETURN_UNDEF;	529	XSRETURN_UNDEF;
426	}	530	}
427		531
		532	if (!data_len)
		533	longjmp (jerr.setjmp_buffer, 4);
		534
428	jpeg_create_decompress (&cinfo);	535	jpeg_create_decompress (&cinfo);
		536	cv_jpeg_mem_src (&cinfo, data, data_len);
429		537
430	jpeg_stdio_src (&cinfo, fp);
431	jpeg_read_header (&cinfo, TRUE);	538	jpeg_read_header (&cinfo, TRUE);
432		539
433	cinfo.dct_method = JDCT_DEFAULT;	540	cinfo.dct_method = JDCT_DEFAULT;
434	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 */
435	cinfo.do_block_smoothing = FALSE;	542	cinfo.do_block_smoothing = FALSE;
…		…
514	data += 4;	621	data += 4;
515	}	622	}
516	}	623	}
517		624
518	jpeg_finish_decompress (&cinfo);	625	jpeg_finish_decompress (&cinfo);
519	fclose (fp);
520	jpeg_destroy_decompress (&cinfo);	626	jpeg_destroy_decompress (&cinfo);
521	perlinterp_acquire ();	627	perlinterp_acquire ();
522	}	628	}
523	OUTPUT:	629	OUTPUT:
524	RETVAL	630	RETVAL

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Comparing CV/CV.xs (file contents): Revision 1.50 by root, Sat Dec 23 03:30:28 2017 UTC vs. Revision 1.57 by root, Mon Jul 30 22:55:46 2018 UTC

Diff Legend

Comparing CV/CV.xs (file contents):
Revision 1.50 by root, Sat Dec 23 03:30:28 2017 UTC vs.
Revision 1.57 by root, Mon Jul 30 22:55:46 2018 UTC