[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 1.56 by root, Wed Dec 27 17:48:16 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	}
…		…
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	ERREXIT (cinfo, JERR_INPUT_EMPTY);
		219
		220	return TRUE;
		221	}
		222
		223	static void cv_ms_skip (j_decompress_ptr cinfo, long num_bytes)
		224	{
		225	if (num_bytes > 0)
		226	{
		227	struct jpeg_source_mgr src = (struct jpeg_source_mgr )cinfo->src;
		228
		229	src->next_input_byte += num_bytes;
		230	src->bytes_in_buffer -= num_bytes;
		231	}
		232	}
		233
		234	static void cv_jpeg_mem_src (j_decompress_ptr cinfo, void *buf, size_t buflen)
		235	{
		236	struct jpeg_source_mgr *src;
		237
		238	if (!cinfo->src)
		239	cinfo->src = (struct jpeg_source_mgr *)
		240	(*cinfo->mem->alloc_small) (
		241	(j_common_ptr) cinfo, JPOOL_PERMANENT, sizeof (struct jpeg_source_mgr)
		242	);
		243
		244	src = (struct jpeg_source_mgr *)cinfo->src;
		245	src->init_source = cv_ms_init;
		246	src->fill_input_buffer = cv_ms_fill;
		247	src->skip_input_data = cv_ms_skip;
		248	src->resync_to_restart = jpeg_resync_to_restart;
		249	src->term_source = cv_ms_term;
		250	src->next_input_byte = (JOCTET *)buf;
		251	src->bytes_in_buffer = buflen;
		252	}
		253
		254	/////////////////////////////////////////////////////////////////////////////
190		255
191	MODULE = Gtk2::CV PACKAGE = Gtk2::CV	256	MODULE = Gtk2::CV PACKAGE = Gtk2::CV
192		257
193	PROTOTYPES: ENABLE	258	PROTOTYPES: ENABLE
194		259
		260	# calculate the common prefix length of two strings
195	# missing function in perl. really :)	261	# missing function in perl. really :)
196	int	262	int
197	common_prefix_length (a, b)	263	common_prefix_length (a, b)
198	unsigned char a = (unsigned char )SvPVutf8_nolen ($arg);	264	unsigned char a = (unsigned char )SvPVutf8_nolen ($arg);
199	unsigned char b = (unsigned char )SvPVutf8_nolen ($arg);	265	unsigned char b = (unsigned char )SvPVutf8_nolen ($arg);
…		…
208		274
209	OUTPUT:	275	OUTPUT:
210	RETVAL	276	RETVAL
211		277
212	const char *	278	const char *
213	magic (octet_string path)	279	magic (SV *path_or_data)
		280	ALIAS:
		281	magic = 0
		282	magic_mime = 1
		283	magic_buffer = 2
		284	magic_buffer_mime = 3
214	CODE:	285	CODE:
215	{	286	{
216	static magic_t cookie;	287	STRLEN len;
		288	char *data = SvPVbyte (path_or_data, len);
217		289
218	if (!cookie)	290	if (!magic_cookie[0])
219	{	291	{
220	cookie = magic_open (MAGIC_SYMLINK);	292	magic_cookie[0] = magic_open (MAGIC_SYMLINK);
221		293	magic_cookie[1] = magic_open (MAGIC_SYMLINK \| MAGIC_MIME_TYPE);
222	if (cookie)
223	magic_load (cookie, 0);	294	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);	295	magic_load (magic_cookie[1], 0);
245	else
246	XSRETURN_UNDEF;
247	}	296	}
248		297
249	perlinterp_release ();	298	perlinterp_release ();
250	RETVAL = magic_file (cookie, path);	299
		300	RETVAL = ix & 2
		301	? magic_buffer (magic_cookie[ix & 1], data, len)
		302	: magic_file (magic_cookie[ix & 1], data);
		303
251	perlinterp_acquire ();	304	perlinterp_acquire ();
252	}	305	}
253	OUTPUT:	306	OUTPUT:
254	RETVAL	307	RETVAL
255		308
…		…
310	: angle);	363	: angle);
311	perlinterp_acquire ();	364	perlinterp_acquire ();
312	OUTPUT:	365	OUTPUT:
313	RETVAL	366	RETVAL
314		367
		368	const char *
		369	filetype (SV *image_data)
		370	CODE:
		371	{
		372	STRLEN data_len;
		373	U8 *data = SvPVbyte (image_data, data_len);
		374
		375	if (data_len >= 20
		376	&& data[0] == 0xff
		377	&& data[1] == 0xd8
		378	&& data[2] == 0xff)
		379	RETVAL = "jpg";
		380	else if (data_len >= 12
		381	&& data[ 0] == (U8)'R'
		382	&& data[ 1] == (U8)'I'
		383	&& data[ 2] == (U8)'F'
		384	&& data[ 3] == (U8)'F'
		385	&& data[ 8] == (U8)'W'
		386	&& data[ 9] == (U8)'E'
		387	&& data[10] == (U8)'B'
		388	&& data[11] == (U8)'P')
		389	RETVAL = "webp";
		390	else if (data_len >= 16
		391	&& data[ 0] == 0x89
		392	&& data[ 1] == (U8)'P'
		393	&& data[ 2] == (U8)'N'
		394	&& data[ 3] == (U8)'G'
		395	&& data[ 4] == 0x0d
		396	&& data[ 5] == 0x0a
		397	&& data[ 6] == 0x1a
		398	&& data[ 7] == 0x0a)
		399	RETVAL = "png";
		400	else
		401	RETVAL = "other";
		402	}
		403	OUTPUT:
		404	RETVAL
		405
315	GdkPixbuf_noinc *	406	GdkPixbuf_noinc *
316	load_jpeg (SV *path, int thumbnail=0)	407	decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
		408	CODE:
		409	{
		410	#if WEBP
		411	STRLEN data_size;
		412	int alpha;
		413	WebPData data;
		414	WebPDemuxer *demux;
		415	WebPIterator iter;
		416	WebPDecoderConfig config;
		417	int inw, inh;
		418
		419	data.bytes = (uint8_t *)SvPVbyte (image_data, data_size);
		420	data.size = data_size;
		421
		422	perlinterp_release ();
		423
		424	RETVAL = 0;
		425
		426	if (!(demux = WebPDemux (&data)))
		427	goto err_demux;
		428
		429	if (!WebPDemuxGetFrame (demux, 1, &iter))
		430	goto err_iter;
		431
		432	if (!WebPInitDecoderConfig (&config))
		433	goto err_iter;
		434
		435	config.options.use_threads = 1;
		436
		437	if (WebPGetFeatures (iter.fragment.bytes, iter.fragment.size, &config.input) != VP8_STATUS_OK)
		438	goto err_iter;
		439
		440	inw = config.input.width;
		441	inh = config.input.height;
		442
		443	if (thumbnail)
		444	{
		445	if (inw * ih > inh * iw)
		446	ih = (iw * inh + inw - 1) / inw;
		447	else
		448	iw = (ih * inw + inh - 1) / inh;
		449
		450	config.options.bypass_filtering = 1;
		451	config.options.no_fancy_upsampling = 1;
		452
		453	config.options.use_scaling = 1;
		454	config.options.scaled_width = iw;
		455	config.options.scaled_height = ih;
		456	}
		457	else
		458	{
		459	iw = inw;
		460	ih = inh;
		461	}
		462
		463	alpha = !!config.input.has_alpha;
		464
		465	RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, alpha, 8, iw, ih);
		466	if (!RETVAL)
		467	goto err_iter;
		468
		469	config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB;
		470	config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL);
		471	config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL);
		472	config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL);
		473	config.output.is_external_memory = 1;
		474
		475	if (WebPDecode (iter.fragment.bytes, iter.fragment.size, &config) != VP8_STATUS_OK)
		476	{
		477	g_object_unref (RETVAL);
		478	RETVAL = 0;
		479	goto err_iter;
		480	}
		481
		482	err_iter:
		483	WebPDemuxReleaseIterator (&iter);
		484	err_demux:
		485	WebPDemuxDelete (demux);
		486
		487	perlinterp_acquire ();
		488	#else
		489	croak ("load_webp: webp not enabled at compile time");
		490	#endif
		491	}
		492	OUTPUT:
		493	RETVAL
		494
		495	GdkPixbuf_noinc *
		496	decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0)
317	CODE:	497	CODE:
318	{	498	{
319	struct jpeg_decompress_struct cinfo;	499	struct jpeg_decompress_struct cinfo;
320	struct jpg_err_mgr jerr;	500	struct jpg_err_mgr jerr;
321	guchar *data;
322	int rs;	501	int rs;
323	FILE *fp;
324	volatile GdkPixbuf *pb = 0;	502	volatile GdkPixbuf *pb = 0;
		503	STRLEN data_len;
		504	guchar *data = SvPVbyte (image_data, data_len);
325		505
326	RETVAL = 0;	506	RETVAL = 0;
327
328	fp = fopen (SvPVbyte_nolen (path), "rb");
329
330	if (!fp)
331	XSRETURN_UNDEF;
332		507
333	perlinterp_release ();	508	perlinterp_release ();
334		509
335	cinfo.err = jpeg_std_error (&jerr.err);	510	cinfo.err = jpeg_std_error (&jerr.err);
336		511
337	jerr.err.error_exit = cv_error_exit;	512	jerr.err.error_exit = cv_error_exit;
338	jerr.err.output_message = cv_error_output;	513	jerr.err.output_message = cv_error_output;
339		514
340	if ((rs = setjmp (jerr.setjmp_buffer)))	515	if ((rs = setjmp (jerr.setjmp_buffer)))
341	{	516	{
342	fclose (fp);
343	jpeg_destroy_decompress (&cinfo);	517	jpeg_destroy_decompress (&cinfo);
344		518
345	if (pb)	519	if (pb)
346	g_object_unref ((gpointer)pb);	520	g_object_unref ((gpointer)pb);
347		521
348	perlinterp_acquire ();	522	perlinterp_acquire ();
349	XSRETURN_UNDEF;	523	XSRETURN_UNDEF;
350	}	524	}
351		525
352	jpeg_create_decompress (&cinfo);	526	jpeg_create_decompress (&cinfo);
		527	cv_jpeg_mem_src (&cinfo, data, data_len);
353		528
354	jpeg_stdio_src (&cinfo, fp);
355	jpeg_read_header (&cinfo, TRUE);	529	jpeg_read_header (&cinfo, TRUE);
356		530
357	cinfo.dct_method = JDCT_DEFAULT;	531	cinfo.dct_method = JDCT_DEFAULT;
358	cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */	532	cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */
359	cinfo.do_block_smoothing = FALSE;	533	cinfo.do_block_smoothing = FALSE;
…		…
369	{	543	{
370	cinfo.dct_method = JDCT_FASTEST;	544	cinfo.dct_method = JDCT_FASTEST;
371	cinfo.do_fancy_upsampling = FALSE;	545	cinfo.do_fancy_upsampling = FALSE;
372		546
373	while (cinfo.scale_denom < 8	547	while (cinfo.scale_denom < 8
374	&& cinfo.output_width >= IW*4	548	&& cinfo.output_width >= iw*4
375	&& cinfo.output_height >= IH*4)	549	&& cinfo.output_height >= ih*4)
376	{	550	{
377	cinfo.scale_denom <<= 1;	551	cinfo.scale_denom <<= 1;
378	jpeg_calc_output_dimensions (&cinfo);	552	jpeg_calc_output_dimensions (&cinfo);
379	}	553	}
380	}	554	}
381		555
		556	if (cinfo.output_components != 3)
		557	longjmp (jerr.setjmp_buffer, 3);
		558
		559	if (cinfo.jpeg_color_space == JCS_YCCK \|\| cinfo.jpeg_color_space == JCS_CMYK)
		560	{
		561	cinfo.out_color_space = JCS_CMYK;
		562	cinfo.output_components = 4;
		563	}
		564
382	pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height);	565	pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, cinfo.output_components == 4, 8, cinfo.output_width, cinfo.output_height);
383	if (!RETVAL)	566	if (!RETVAL)
384	longjmp (jerr.setjmp_buffer, 2);	567	longjmp (jerr.setjmp_buffer, 2);
385		568
386	data = gdk_pixbuf_get_pixels (RETVAL);	569	data = gdk_pixbuf_get_pixels (RETVAL);
387	rs = gdk_pixbuf_get_rowstride (RETVAL);	570	rs = gdk_pixbuf_get_rowstride (RETVAL);
388
389	if (cinfo.output_components != 3)
390	longjmp (jerr.setjmp_buffer, 3);
391		571
392	jpeg_start_decompress (&cinfo);	572	jpeg_start_decompress (&cinfo);
393		573
394	while (cinfo.output_scanline < cinfo.output_height)	574	while (cinfo.output_scanline < cinfo.output_height)
395	{	575	{
…		…
402	rp [3] = (guchar *)rp [2] + rs;	582	rp [3] = (guchar *)rp [2] + rs;
403		583
404	jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4);	584	jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4);
405	}	585	}
406		586
		587	if (cinfo.out_color_space == JCS_CMYK)
		588	{
		589	guchar end = data + cinfo.output_height rs;
		590
		591	while (data < end)
		592	{
		593	U32 c = data [0];
		594	U32 m = data [1];
		595	U32 y = data [2];
		596	U32 k = data [3];
		597
		598	if (0)
		599	if (cinfo.Adobe_transform == 2)
		600	{
		601	c ^= 0xff;
		602	m ^= 0xff;
		603	y ^= 0xff;
		604	k ^= 0xff;
		605	}
		606
		607	data [0] = (c * k + 0x80) / 0xff;
		608	data [1] = (m * k + 0x80) / 0xff;
		609	data [2] = (y * k + 0x80) / 0xff;
		610	data [3] = 0xff;
		611
		612	data += 4;
		613	}
		614	}
		615
407	jpeg_finish_decompress (&cinfo);	616	jpeg_finish_decompress (&cinfo);
408	fclose (fp);
409	jpeg_destroy_decompress (&cinfo);	617	jpeg_destroy_decompress (&cinfo);
410	perlinterp_acquire ();	618	perlinterp_acquire ();
411	}	619	}
412	OUTPUT:	620	OUTPUT:
413	RETVAL	621	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 1.56 by root, Wed Dec 27 17:48:16 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 1.56 by root, Wed Dec 27 17:48:16 2017 UTC