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/* load vips from a file
*
* 24/11/11
*/
/*
This file is part of VIPS.
VIPS is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
/*
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
*/
/*
#define DEBUG
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /*HAVE_CONFIG_H*/
#include <vips/intl.h>
#include <stdio.h>
#include <stdlib.h>
#include <vips/vips.h>
#include <vips/internal.h>
typedef struct _VipsForeignLoadVips {
VipsForeignLoad parent_object;
char *filename;
} VipsForeignLoadVips;
typedef VipsForeignLoadClass VipsForeignLoadVipsClass;
G_DEFINE_TYPE( VipsForeignLoadVips, vips_foreign_load_vips,
VIPS_TYPE_FOREIGN_LOAD );
static gboolean
vips_foreign_load_vips_is_a( const char *filename )
{
return( vips__file_magic( filename ) );
}
static VipsForeignFlags
vips_foreign_load_vips_get_flags_filename( const char *filename )
{
VipsForeignFlags flags;
flags = VIPS_FOREIGN_PARTIAL;
if( vips__file_magic( filename ) == VIPS_MAGIC_SPARC )
flags |= VIPS_FOREIGN_BIGENDIAN;
return( flags );
}
static VipsForeignFlags
vips_foreign_load_vips_get_flags( VipsForeignLoad *load )
{
VipsForeignLoadVips *vips = (VipsForeignLoadVips *) load;
return( vips_foreign_load_vips_get_flags_filename( vips->filename ) );
}
static int
vips_foreign_load_vips_header( VipsForeignLoad *load )
{
VipsForeignLoadVips *vips = (VipsForeignLoadVips *) load;
VipsImage *out;
VipsImage *out2;
if( !(out2 = vips_image_new_mode( vips->filename, "r" )) )
return( -1 );
/* Remove the @out that's there now.
*/
g_object_get( load, "out", &out, NULL );
g_object_unref( out );
g_object_unref( out );
g_object_set( load, "out", out2, NULL );
return( 0 );
}
const char *vips__suffs[] = { ".v", ".vips", NULL };
static void
vips_foreign_load_vips_class_init( VipsForeignLoadVipsClass *class )
{
GObjectClass *gobject_class = G_OBJECT_CLASS( class );
VipsObjectClass *object_class = (VipsObjectClass *) class;
VipsForeignClass *foreign_class = (VipsForeignClass *) class;
VipsForeignLoadClass *load_class = (VipsForeignLoadClass *) class;
gobject_class->set_property = vips_object_set_property;
gobject_class->get_property = vips_object_get_property;
object_class->nickname = "vipsload";
object_class->description = _( "load vips from file" );
foreign_class->suffs = vips__suffs;
/* We are fast at is_a(), so high priority.
*/
foreign_class->priority = 200;
load_class->is_a = vips_foreign_load_vips_is_a;
load_class->get_flags = vips_foreign_load_vips_get_flags;
load_class->get_flags_filename =
vips_foreign_load_vips_get_flags_filename;
load_class->header = vips_foreign_load_vips_header;
load_class->load = NULL;
VIPS_ARG_STRING( class, "filename", 1,
_( "Filename" ),
_( "Filename to load from" ),
VIPS_ARGUMENT_REQUIRED_INPUT,
G_STRUCT_OFFSET( VipsForeignLoadVips, filename ),
NULL );
}
static void
vips_foreign_load_vips_init( VipsForeignLoadVips *vips )
{
}
/**
* vips_vipsload:
* @filename: file to load
* @out: decompressed image
* @...: %NULL-terminated list of optional named arguments
*
* Read in a vips image.
*
* See also: vips_vipssave().
*
* Returns: 0 on success, -1 on error.
*/
int
vips_vipsload( const char *filename, VipsImage **out, ... )
{
va_list ap;
int result;
va_start( ap, out );
result = vips_call_split( "vipsload", ap, filename, out );
va_end( ap );
return( result );
}
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