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/* save to ppm
*
* 2/12/11
* - wrap a class around the ppm writer
*/
/*
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_VERBOSE
#define DEBUG
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /*HAVE_CONFIG_H*/
#include <vips/intl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <vips/vips.h>
#ifdef HAVE_PPM
#include "ppm.h"
typedef struct _VipsForeignSavePpm {
VipsForeignSave parent_object;
char *filename;
gboolean ascii;
gboolean squash;
} VipsForeignSavePpm;
typedef VipsForeignSaveClass VipsForeignSavePpmClass;
G_DEFINE_TYPE( VipsForeignSavePpm, vips_foreign_save_ppm,
VIPS_TYPE_FOREIGN_SAVE );
static int
vips_foreign_save_ppm_build( VipsObject *object )
{
VipsForeignSave *save = (VipsForeignSave *) object;
VipsForeignSavePpm *ppm = (VipsForeignSavePpm *) object;
if( VIPS_OBJECT_CLASS( vips_foreign_save_ppm_parent_class )->
build( object ) )
return( -1 );
if( vips__ppm_save( save->ready, ppm->filename,
ppm->ascii, ppm->squash ) )
return( -1 );
return( 0 );
}
/* Save a bit of typing.
*/
#define UC VIPS_FORMAT_UCHAR
#define C VIPS_FORMAT_CHAR
#define US VIPS_FORMAT_USHORT
#define S VIPS_FORMAT_SHORT
#define UI VIPS_FORMAT_UINT
#define I VIPS_FORMAT_INT
#define F VIPS_FORMAT_FLOAT
#define X VIPS_FORMAT_COMPLEX
#define D VIPS_FORMAT_DOUBLE
#define DX VIPS_FORMAT_DPCOMPLEX
static int bandfmt_ppm[10] = {
/* UC C US S UI I F X D DX */
UC, UC, US, US, UI, UI, F, F, F, F
};
static void
vips_foreign_save_ppm_class_init( VipsForeignSavePpmClass *class )
{
GObjectClass *gobject_class = G_OBJECT_CLASS( class );
VipsObjectClass *object_class = (VipsObjectClass *) class;
VipsForeignClass *foreign_class = (VipsForeignClass *) class;
VipsForeignSaveClass *save_class = (VipsForeignSaveClass *) class;
gobject_class->set_property = vips_object_set_property;
gobject_class->get_property = vips_object_get_property;
object_class->nickname = "ppmsave";
object_class->description = _( "save image to ppm file" );
object_class->build = vips_foreign_save_ppm_build;
foreign_class->suffs = vips__ppm_suffs;
save_class->saveable = VIPS_SAVEABLE_RGB;
save_class->format_table = bandfmt_ppm;
VIPS_ARG_STRING( class, "filename", 1,
_( "Filename" ),
_( "Filename to save to" ),
VIPS_ARGUMENT_REQUIRED_INPUT,
G_STRUCT_OFFSET( VipsForeignSavePpm, filename ),
NULL );
VIPS_ARG_BOOL( class, "ascii", 10,
_( "ASCII" ),
_( "save as ascii" ),
VIPS_ARGUMENT_OPTIONAL_INPUT,
G_STRUCT_OFFSET( VipsForeignSavePpm, ascii ),
FALSE );
VIPS_ARG_BOOL( class, "squash", 11,
_( "Squash" ),
_( "save as one bit" ),
VIPS_ARGUMENT_OPTIONAL_INPUT,
G_STRUCT_OFFSET( VipsForeignSavePpm, squash ),
FALSE );
}
static void
vips_foreign_save_ppm_init( VipsForeignSavePpm *ppm )
{
}
#endif /*HAVE_PPM*/
/**
* vips_ppmsave:
* @in: image to save
* @filename: file to write to
* @...: %NULL-terminated list of optional named arguments
*
* Optional arguments:
*
* * @ascii: save as ASCII rather than binary
* * @squash: squash 8-bit images down to one bit
*
* Write a VIPS image to a file as PPM. It can write 1, 8, 16 or
* 32 bit unsigned integer images, float images, colour or monochrome,
* stored as binary or ASCII.
* Integer images of more than 8 bits can only be stored in ASCII.
*
* When writing float (PFM) images the scale factor is set from the
* "pfm-scale" metadata.
*
* Set @ascii to %TRUE to write as human-readable ASCII. Normally data is
* written in binary.
*
* Set @squash to %TRUE to squash 8-bit images down to one bit. The saver does
* no dithering, that's up to you.
*
* See also: vips_image_write_to_file().
*
* Returns: 0 on success, -1 on error.
*/
int
vips_ppmsave( VipsImage *in, const char *filename, ... )
{
va_list ap;
int result;
va_start( ap, filename );
result = vips_call_split( "ppmsave", ap, in, filename );
va_end( ap );
return( result );
}
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