170 lines
4.0 KiB
C
170 lines
4.0 KiB
C
/* load ppm 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., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 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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#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 "ppm.h"
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typedef struct _VipsForeignLoadPpm {
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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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} VipsForeignLoadPpm;
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typedef VipsForeignLoadClass VipsForeignLoadPpmClass;
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G_DEFINE_TYPE( VipsForeignLoadPpm, vips_foreign_load_ppm,
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VIPS_TYPE_FOREIGN_LOAD );
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static VipsForeignFlags
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vips_foreign_load_ppm_get_flags_filename( const char *filename )
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{
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return( (VipsForeignFlags) vips__ppm_flags( filename ) );
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}
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static VipsForeignFlags
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vips_foreign_load_ppm_get_flags( VipsForeignLoad *load )
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{
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VipsForeignLoadPpm *ppm = (VipsForeignLoadPpm *) load;
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return( vips_foreign_load_ppm_get_flags_filename( ppm->filename ) );
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}
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static int
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vips_foreign_load_ppm_header( VipsForeignLoad *load )
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{
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VipsForeignLoadPpm *ppm = (VipsForeignLoadPpm *) load;
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if( vips__ppm_header( ppm->filename, load->out ) )
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return( -1 );
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VIPS_SETSTR( load->out->filename, ppm->filename );
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return( 0 );
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}
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static int
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vips_foreign_load_ppm_load( VipsForeignLoad *load )
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{
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VipsForeignLoadPpm *ppm = (VipsForeignLoadPpm *) load;
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if( vips__ppm_load( ppm->filename, load->real ) )
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return( -1 );
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return( 0 );
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}
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static void
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vips_foreign_load_ppm_class_init( VipsForeignLoadPpmClass *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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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 = "ppmload";
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object_class->description = _( "load ppm from file" );
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foreign_class->suffs = vips__ppm_suffs;
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load_class->is_a = vips__ppm_isppm;
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load_class->get_flags_filename =
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vips_foreign_load_ppm_get_flags_filename;
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load_class->get_flags = vips_foreign_load_ppm_get_flags;
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load_class->header = vips_foreign_load_ppm_header;
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load_class->load = vips_foreign_load_ppm_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( VipsForeignLoadPpm, filename ),
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NULL );
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}
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static void
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vips_foreign_load_ppm_init( VipsForeignLoadPpm *ppm )
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{
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}
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/**
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* vips_ppmload:
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* @filename: file to load
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* @out: output image
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* @...: %NULL-terminated list of optional named arguments
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*
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* Read a PPM/PBM/PGM/PFM file into a VIPS image.
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*
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* It can read 1, 8, 16 and 32 bit images, colour or monochrome,
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* stored in binary or in ASCII. One bit images become 8 bit VIPS images,
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* with 0 and 255 for 0 and 1.
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*
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* See also: vips_image_new_from_file().
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*
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* Returns: 0 on success, -1 on error.
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*/
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int
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vips_ppmload( const char *filename, VipsImage **out, ... )
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{
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va_list ap;
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int result;
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va_start( ap, out );
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result = vips_call_split( "ppmload", ap, filename, out );
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va_end( ap );
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return( result );
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}
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