169 lines
4.0 KiB
C
169 lines
4.0 KiB
C
/* load tiff from a file
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*
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* 5/12/11
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* - from tiffload.c
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*/
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/*
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This file is part of VIPS.
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VIPS is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
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*/
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/*
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#define DEBUG
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif /*HAVE_CONFIG_H*/
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#include <vips/intl.h>
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#ifdef HAVE_TIFF
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <vips/vips.h>
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#include <vips/buf.h>
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#include <vips/internal.h>
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#include "tiff.h"
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typedef struct _VipsForeignLoadTiff {
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VipsForeignLoad parent_object;
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/* Filename for load.
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*/
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char *filename;
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/* Load this page.
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*/
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int page;
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} VipsForeignLoadTiff;
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typedef VipsForeignLoadClass VipsForeignLoadTiffClass;
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G_DEFINE_TYPE( VipsForeignLoadTiff, vips_foreign_load_tiff,
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VIPS_TYPE_FOREIGN_LOAD );
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static VipsForeignFlags
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vips_foreign_load_tiff_get_flags_filename( const char *filename )
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{
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VipsForeignFlags flags;
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flags = 0;
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if( vips__istifftiled( filename ) )
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flags |= VIPS_FOREIGN_PARTIAL;
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else
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flags |= VIPS_FOREIGN_SEQUENTIAL;
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return( flags );
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}
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static VipsForeignFlags
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vips_foreign_load_tiff_get_flags( VipsForeignLoad *load )
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{
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VipsForeignLoadTiff *tiff = (VipsForeignLoadTiff *) load;
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return( vips_foreign_load_tiff_get_flags_filename( tiff->filename ) );
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}
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static int
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vips_foreign_load_tiff_header( VipsForeignLoad *load )
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{
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VipsForeignLoadTiff *tiff = (VipsForeignLoadTiff *) load;
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if( vips__tiff_read_header( tiff->filename, load->out, tiff->page ) )
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return( -1 );
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return( 0 );
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}
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static int
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vips_foreign_load_tiff_load( VipsForeignLoad *load )
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{
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VipsForeignLoadTiff *tiff = (VipsForeignLoadTiff *) load;
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if( vips__tiff_read( tiff->filename, load->real, tiff->page ) )
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return( -1 );
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return( 0 );
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}
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const char *vips__foreign_tiff_suffs[] = { ".tif", ".tiff", NULL };
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static void
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vips_foreign_load_tiff_class_init( VipsForeignLoadTiffClass *class )
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS( class );
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VipsObjectClass *object_class = (VipsObjectClass *) class;
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VipsForeignClass *foreign_class = (VipsForeignClass *) class;
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VipsForeignLoadClass *load_class = (VipsForeignLoadClass *) class;
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/* Other libraries may be using libtiff, we want to capture tiff
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* warning and error as soon as we can.
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*
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* This class init will be triggered during startup.
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*/
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vips__tiff_init();
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gobject_class->set_property = vips_object_set_property;
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gobject_class->get_property = vips_object_get_property;
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object_class->nickname = "tiffload";
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object_class->description = _( "load tiff from file" );
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foreign_class->suffs = vips__foreign_tiff_suffs;
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load_class->is_a = vips__istiff;
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load_class->get_flags_filename =
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vips_foreign_load_tiff_get_flags_filename;
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load_class->get_flags = vips_foreign_load_tiff_get_flags;
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load_class->header = vips_foreign_load_tiff_header;
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load_class->load = vips_foreign_load_tiff_load;
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VIPS_ARG_STRING( class, "filename", 1,
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_( "Filename" ),
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_( "Filename to load from" ),
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VIPS_ARGUMENT_REQUIRED_INPUT,
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G_STRUCT_OFFSET( VipsForeignLoadTiff, filename ),
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NULL );
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VIPS_ARG_INT( class, "page", 10,
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_( "Page" ),
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_( "Load this page from the file" ),
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VIPS_ARGUMENT_OPTIONAL_INPUT,
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G_STRUCT_OFFSET( VipsForeignLoadTiff, page ),
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0, 100000, 0 );
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}
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static void
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vips_foreign_load_tiff_init( VipsForeignLoadTiff *tiff )
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{
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}
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#endif /*HAVE_TIFF*/
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