homework/chat-server/node_modules/sharp/vendor/include/vips/resample.h

/* resample.h
 *
 * 20/9/09
 * 	- from proto.h
 */

/*

    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

 */

#ifndef VIPS_RESAMPLE_H
#define VIPS_RESAMPLE_H

#ifdef __cplusplus
extern "C" {
#endif /*__cplusplus*/

typedef enum {
	VIPS_KERNEL_NEAREST,
	VIPS_KERNEL_LINEAR,
	VIPS_KERNEL_CUBIC,
	VIPS_KERNEL_MITCHELL,
	VIPS_KERNEL_LANCZOS2,
	VIPS_KERNEL_LANCZOS3,
	VIPS_KERNEL_LAST
} VipsKernel;

typedef enum {
	VIPS_SIZE_BOTH,
	VIPS_SIZE_UP,
	VIPS_SIZE_DOWN,
	VIPS_SIZE_FORCE,
	VIPS_SIZE_LAST
} VipsSize;

int vips_shrink( VipsImage *in, VipsImage **out, 
	double hshrink, double vshrink, ... )
	__attribute__((sentinel));
int vips_shrinkh( VipsImage *in, VipsImage **out, int hshrink, ... )
	__attribute__((sentinel));
int vips_shrinkv( VipsImage *in, VipsImage **out, int vshrink, ... )
	__attribute__((sentinel));

int vips_reduce( VipsImage *in, VipsImage **out, 
	double hshrink, double vshrink, ... )
	__attribute__((sentinel));
int vips_reduceh( VipsImage *in, VipsImage **out, double hshrink, ... )
	__attribute__((sentinel));
int vips_reducev( VipsImage *in, VipsImage **out, double vshrink, ... )
	__attribute__((sentinel));

int vips_thumbnail( const char *filename, VipsImage **out, int width, ... )
	__attribute__((sentinel));
int vips_thumbnail_buffer( void *buf, size_t len, VipsImage **out, 
	int width, ... )
	__attribute__((sentinel));
int vips_thumbnail_image( VipsImage *in, VipsImage **out, int width, ... )
	__attribute__((sentinel));
int vips_thumbnail_source( VipsSource *source, VipsImage **out, 
	int width, ... )
	__attribute__((sentinel));

int vips_similarity( VipsImage *in, VipsImage **out, ... )
	__attribute__((sentinel));
int vips_rotate( VipsImage *in, VipsImage **out, double angle, ... )
	__attribute__((sentinel));
int vips_affine( VipsImage *in, VipsImage **out, 
	double a, double b, double c, double d, ... )
	__attribute__((sentinel));

int vips_resize( VipsImage *in, VipsImage **out, double scale, ... )
	__attribute__((sentinel));

int vips_mapim( VipsImage *in, VipsImage **out, VipsImage *index, ... ) 
	__attribute__((sentinel));

int vips_quadratic( VipsImage *in, VipsImage **out, VipsImage *coeff, ... )
	__attribute__((sentinel));

#ifdef __cplusplus
}
#endif /*__cplusplus*/

#endif /*VIPS_RESAMPLE_H*/