466 lines
11 KiB
C
466 lines
11 KiB
C
/* load radlab from a file
|
|
*
|
|
* 5/12/11
|
|
* - from tiffload.c
|
|
*/
|
|
|
|
/*
|
|
|
|
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 <string.h>
|
|
|
|
#include <vips/vips.h>
|
|
#include <vips/buf.h>
|
|
#include <vips/internal.h>
|
|
|
|
#include "pforeign.h"
|
|
|
|
#ifdef HAVE_RADIANCE
|
|
|
|
typedef struct _VipsForeignLoadRad {
|
|
VipsForeignLoad parent_object;
|
|
|
|
/* Set by subclasses.
|
|
*/
|
|
VipsSource *source;
|
|
|
|
} VipsForeignLoadRad;
|
|
|
|
typedef VipsForeignLoadClass VipsForeignLoadRadClass;
|
|
|
|
G_DEFINE_ABSTRACT_TYPE( VipsForeignLoadRad, vips_foreign_load_rad,
|
|
VIPS_TYPE_FOREIGN_LOAD );
|
|
|
|
static void
|
|
vips_foreign_load_rad_dispose( GObject *gobject )
|
|
{
|
|
VipsForeignLoadRad *rad = (VipsForeignLoadRad *) gobject;
|
|
|
|
VIPS_UNREF( rad->source );
|
|
|
|
G_OBJECT_CLASS( vips_foreign_load_rad_parent_class )->
|
|
dispose( gobject );
|
|
}
|
|
|
|
static VipsForeignFlags
|
|
vips_foreign_load_rad_get_flags( VipsForeignLoad *load )
|
|
{
|
|
return( VIPS_FOREIGN_SEQUENTIAL );
|
|
}
|
|
|
|
static VipsForeignFlags
|
|
vips_foreign_load_rad_get_flags_filename( const char *filename )
|
|
{
|
|
return( VIPS_FOREIGN_SEQUENTIAL );
|
|
}
|
|
|
|
static int
|
|
vips_foreign_load_rad_header( VipsForeignLoad *load )
|
|
{
|
|
VipsForeignLoadRad *rad = (VipsForeignLoadRad *) load;
|
|
|
|
if( vips__rad_header( rad->source, load->out ) )
|
|
return( -1 );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
static int
|
|
vips_foreign_load_rad_load( VipsForeignLoad *load )
|
|
{
|
|
VipsForeignLoadRad *rad = (VipsForeignLoadRad *) load;
|
|
|
|
if( vips__rad_load( rad->source, load->real ) )
|
|
return( -1 );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
static void
|
|
vips_foreign_load_rad_class_init( VipsForeignLoadRadClass *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->dispose = vips_foreign_load_rad_dispose;
|
|
|
|
object_class->nickname = "radload_base";
|
|
object_class->description = _( "load rad base class" );
|
|
|
|
/* is_a() is not that quick ... lower the priority.
|
|
*/
|
|
foreign_class->priority = -50;
|
|
|
|
load_class->get_flags_filename =
|
|
vips_foreign_load_rad_get_flags_filename;
|
|
load_class->get_flags = vips_foreign_load_rad_get_flags;
|
|
load_class->header = vips_foreign_load_rad_header;
|
|
load_class->load = vips_foreign_load_rad_load;
|
|
|
|
}
|
|
|
|
static void
|
|
vips_foreign_load_rad_init( VipsForeignLoadRad *rad )
|
|
{
|
|
}
|
|
|
|
typedef struct _VipsForeignLoadRadSource {
|
|
VipsForeignLoadRad parent_object;
|
|
|
|
/* Load from a source.
|
|
*/
|
|
VipsSource *source;
|
|
|
|
} VipsForeignLoadRadSource;
|
|
|
|
typedef VipsForeignLoadRadClass VipsForeignLoadRadSourceClass;
|
|
|
|
G_DEFINE_TYPE( VipsForeignLoadRadSource, vips_foreign_load_rad_source,
|
|
vips_foreign_load_rad_get_type() );
|
|
|
|
static int
|
|
vips_foreign_load_rad_source_build( VipsObject *object )
|
|
{
|
|
VipsForeignLoadRad *rad = (VipsForeignLoadRad *) object;
|
|
VipsForeignLoadRadSource *source = (VipsForeignLoadRadSource *) object;
|
|
|
|
if( source->source ) {
|
|
rad->source = source->source;
|
|
g_object_ref( rad->source );
|
|
}
|
|
|
|
if( VIPS_OBJECT_CLASS( vips_foreign_load_rad_source_parent_class )->
|
|
build( object ) )
|
|
return( -1 );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
static gboolean
|
|
vips_foreign_load_rad_source_is_a_source( VipsSource *source )
|
|
{
|
|
return( vips__rad_israd( source ) );
|
|
}
|
|
|
|
static void
|
|
vips_foreign_load_rad_source_class_init( VipsForeignLoadRadSourceClass *class )
|
|
{
|
|
GObjectClass *gobject_class = G_OBJECT_CLASS( class );
|
|
VipsObjectClass *object_class = (VipsObjectClass *) 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 = "radload_source";
|
|
object_class->description = _( "load rad from source" );
|
|
object_class->build = vips_foreign_load_rad_source_build;
|
|
|
|
load_class->is_a_source = vips_foreign_load_rad_source_is_a_source;
|
|
|
|
VIPS_ARG_OBJECT( class, "source", 1,
|
|
_( "Source" ),
|
|
_( "Source to load from" ),
|
|
VIPS_ARGUMENT_REQUIRED_INPUT,
|
|
G_STRUCT_OFFSET( VipsForeignLoadRadSource, source ),
|
|
VIPS_TYPE_SOURCE );
|
|
|
|
}
|
|
|
|
static void
|
|
vips_foreign_load_rad_source_init( VipsForeignLoadRadSource *source )
|
|
{
|
|
}
|
|
|
|
typedef struct _VipsForeignLoadRadFile {
|
|
VipsForeignLoadRad parent_object;
|
|
|
|
/* Filename for load.
|
|
*/
|
|
char *filename;
|
|
|
|
} VipsForeignLoadRadFile;
|
|
|
|
typedef VipsForeignLoadRadClass VipsForeignLoadRadFileClass;
|
|
|
|
G_DEFINE_TYPE( VipsForeignLoadRadFile, vips_foreign_load_rad_file,
|
|
vips_foreign_load_rad_get_type() );
|
|
|
|
static int
|
|
vips_foreign_load_rad_file_build( VipsObject *object )
|
|
{
|
|
VipsForeignLoadRad *rad = (VipsForeignLoadRad *) object;
|
|
VipsForeignLoadRadFile *file = (VipsForeignLoadRadFile *) object;
|
|
|
|
if( file->filename &&
|
|
!(rad->source = vips_source_new_from_file( file->filename )) )
|
|
return( -1 );
|
|
|
|
if( VIPS_OBJECT_CLASS( vips_foreign_load_rad_file_parent_class )->
|
|
build( object ) )
|
|
return( -1 );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
static int
|
|
vips_foreign_load_rad_file_is_a( const char *filename )
|
|
{
|
|
VipsSource *source;
|
|
int result;
|
|
|
|
if( !(source = vips_source_new_from_file( filename )) )
|
|
return( -1 );
|
|
result = vips_foreign_load_rad_source_is_a_source( source );
|
|
VIPS_UNREF( source );
|
|
|
|
return( result );
|
|
}
|
|
|
|
static void
|
|
vips_foreign_load_rad_file_class_init( VipsForeignLoadRadFileClass *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 = "radload";
|
|
object_class->description = _( "load a Radiance image from a file" );
|
|
object_class->build = vips_foreign_load_rad_file_build;
|
|
|
|
foreign_class->suffs = vips__rad_suffs;
|
|
|
|
load_class->is_a = vips_foreign_load_rad_file_is_a;
|
|
|
|
VIPS_ARG_STRING( class, "filename", 1,
|
|
_( "Filename" ),
|
|
_( "Filename to load from" ),
|
|
VIPS_ARGUMENT_REQUIRED_INPUT,
|
|
G_STRUCT_OFFSET( VipsForeignLoadRadFile, filename ),
|
|
NULL );
|
|
}
|
|
|
|
static void
|
|
vips_foreign_load_rad_file_init( VipsForeignLoadRadFile *file )
|
|
{
|
|
}
|
|
|
|
typedef struct _VipsForeignLoadRadBuffer {
|
|
VipsForeignLoadRad parent_object;
|
|
|
|
/* Load from a buffer.
|
|
*/
|
|
VipsBlob *blob;
|
|
|
|
} VipsForeignLoadRadBuffer;
|
|
|
|
typedef VipsForeignLoadRadClass VipsForeignLoadRadBufferClass;
|
|
|
|
G_DEFINE_TYPE( VipsForeignLoadRadBuffer, vips_foreign_load_rad_buffer,
|
|
vips_foreign_load_rad_get_type() );
|
|
|
|
static int
|
|
vips_foreign_load_rad_buffer_build( VipsObject *object )
|
|
{
|
|
VipsForeignLoadRad *rad = (VipsForeignLoadRad *) object;
|
|
VipsForeignLoadRadBuffer *buffer = (VipsForeignLoadRadBuffer *) object;
|
|
|
|
if( buffer->blob &&
|
|
!(rad->source = vips_source_new_from_memory(
|
|
VIPS_AREA( buffer->blob )->data,
|
|
VIPS_AREA( buffer->blob )->length )) )
|
|
return( -1 );
|
|
|
|
if( VIPS_OBJECT_CLASS( vips_foreign_load_rad_file_parent_class )->
|
|
build( object ) )
|
|
return( -1 );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
static gboolean
|
|
vips_foreign_load_rad_buffer_is_a_buffer( const void *buf, size_t len )
|
|
{
|
|
VipsSource *source;
|
|
gboolean result;
|
|
|
|
if( !(source = vips_source_new_from_memory( buf, len )) )
|
|
return( FALSE );
|
|
result = vips_foreign_load_rad_source_is_a_source( source );
|
|
VIPS_UNREF( source );
|
|
|
|
return( result );
|
|
}
|
|
|
|
static void
|
|
vips_foreign_load_rad_buffer_class_init( VipsForeignLoadRadBufferClass *class )
|
|
{
|
|
GObjectClass *gobject_class = G_OBJECT_CLASS( class );
|
|
VipsObjectClass *object_class = (VipsObjectClass *) 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 = "radload_buffer";
|
|
object_class->description = _( "load rad from buffer" );
|
|
object_class->build = vips_foreign_load_rad_buffer_build;
|
|
|
|
load_class->is_a_buffer = vips_foreign_load_rad_buffer_is_a_buffer;
|
|
|
|
VIPS_ARG_BOXED( class, "buffer", 1,
|
|
_( "Buffer" ),
|
|
_( "Buffer to load from" ),
|
|
VIPS_ARGUMENT_REQUIRED_INPUT,
|
|
G_STRUCT_OFFSET( VipsForeignLoadRadBuffer, blob ),
|
|
VIPS_TYPE_BLOB );
|
|
|
|
}
|
|
|
|
static void
|
|
vips_foreign_load_rad_buffer_init( VipsForeignLoadRadBuffer *buffer )
|
|
{
|
|
}
|
|
|
|
#endif /*HAVE_RADIANCE*/
|
|
|
|
/**
|
|
* vips_radload:
|
|
* @filename: file to load
|
|
* @out: (out): output image
|
|
* @...: %NULL-terminated list of optional named arguments
|
|
*
|
|
* Read a Radiance (HDR) file into a VIPS image.
|
|
*
|
|
* Radiance files are read as #VIPS_CODING_RAD. They have one byte for each of
|
|
* red, green and blue, and one byte of shared exponent. Some operations (like
|
|
* vips_extract_area()) can work directly with images in this format, but
|
|
* mmany (all the arithmetic operations, for example) will not. Unpack
|
|
* #VIPS_CODING_RAD images to 3 band float with vips_rad2float() if
|
|
* you want to do arithmetic on them.
|
|
*
|
|
* This operation ignores some header fields, like VIEW and DATE. It will not
|
|
* rotate/flip as the FORMAT string asks.
|
|
*
|
|
* Sections of this reader from Greg Ward and Radiance with kind permission.
|
|
*
|
|
* See also: vips_image_new_from_file().
|
|
*
|
|
* Returns: 0 on success, -1 on error.
|
|
*/
|
|
int
|
|
vips_radload( const char *filename, VipsImage **out, ... )
|
|
{
|
|
va_list ap;
|
|
int result;
|
|
|
|
va_start( ap, out );
|
|
result = vips_call_split( "radload", ap, filename, out );
|
|
va_end( ap );
|
|
|
|
return( result );
|
|
}
|
|
|
|
/**
|
|
* vips_radload_buffer:
|
|
* @buf: (array length=len) (element-type guint8): memory area to load
|
|
* @len: (type gsize): size of memory area
|
|
* @out: (out): image to write
|
|
* @...: %NULL-terminated list of optional named arguments
|
|
*
|
|
* Exactly as vips_radload(), but read from a HDR-formatted memory block.
|
|
*
|
|
* You must not free the buffer while @out is active. The
|
|
* #VipsObject::postclose signal on @out is a good place to free.
|
|
*
|
|
* See also: vips_radload().
|
|
*
|
|
* Returns: 0 on success, -1 on error.
|
|
*/
|
|
int
|
|
vips_radload_buffer( void *buf, size_t len, VipsImage **out, ... )
|
|
{
|
|
va_list ap;
|
|
VipsBlob *blob;
|
|
int result;
|
|
|
|
/* We don't take a copy of the data or free it.
|
|
*/
|
|
blob = vips_blob_new( NULL, buf, len );
|
|
|
|
va_start( ap, out );
|
|
result = vips_call_split( "radload_buffer", ap, blob, out );
|
|
va_end( ap );
|
|
|
|
vips_area_unref( VIPS_AREA( blob ) );
|
|
|
|
return( result );
|
|
}
|
|
|
|
/**
|
|
* vips_radload_source:
|
|
* @source: source to load from
|
|
* @out: (out): output image
|
|
* @...: %NULL-terminated list of optional named arguments
|
|
*
|
|
* Exactly as vips_radload(), but read from a source.
|
|
*
|
|
* See also: vips_radload().
|
|
*
|
|
* Returns: 0 on success, -1 on error.
|
|
*/
|
|
int
|
|
vips_radload_source( VipsSource *source, VipsImage **out, ... )
|
|
{
|
|
va_list ap;
|
|
int result;
|
|
|
|
va_start( ap, out );
|
|
result = vips_call_split( "radload_source", ap, source, out );
|
|
va_end( ap );
|
|
|
|
return( result );
|
|
}
|
|
|