/* Generate pixels.
 *
 * J.Cupitt, 8/4/93
 */

/*

	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_GENERATE_H
#define VIPS_GENERATE_H

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

typedef int (*VipsRegionWrite)(VipsRegion *region, VipsRect *area, void *a);
VIPS_API
int vips_sink_disc(VipsImage *im, VipsRegionWrite write_fn, void *a);

VIPS_API
int vips_sink(VipsImage *im,
	VipsStartFn start_fn, VipsGenerateFn generate_fn, VipsStopFn stop_fn,
	void *a, void *b);
VIPS_API
int vips_sink_tile(VipsImage *im,
	int tile_width, int tile_height,
	VipsStartFn start_fn, VipsGenerateFn generate_fn, VipsStopFn stop_fn,
	void *a, void *b);

typedef void (*VipsSinkNotify)(VipsImage *im, VipsRect *rect, void *a);
VIPS_API
int vips_sink_screen(VipsImage *in, VipsImage *out, VipsImage *mask,
	int tile_width, int tile_height, int max_tiles,
	int priority,
	VipsSinkNotify notify_fn, void *a);

VIPS_API
int vips_sink_memory(VipsImage *im);

VIPS_API
void *vips_start_one(VipsImage *out, void *a, void *b);
VIPS_API
int vips_stop_one(void *seq, void *a, void *b);
VIPS_API
void *vips_start_many(VipsImage *out, void *a, void *b);
VIPS_API
int vips_stop_many(void *seq, void *a, void *b);
VIPS_API
VipsImage **vips_allocate_input_array(VipsImage *out, ...)
	G_GNUC_NULL_TERMINATED;

VIPS_API
int vips_image_generate(VipsImage *image,
	VipsStartFn start_fn, VipsGenerateFn generate_fn, VipsStopFn stop_fn,
	void *a, void *b);

VIPS_API
int vips_image_pipeline_array(VipsImage *image,
	VipsDemandStyle hint, VipsImage **in);
VIPS_API
int vips_image_pipelinev(VipsImage *image, VipsDemandStyle hint, ...)
	G_GNUC_NULL_TERMINATED;

#ifdef __cplusplus
}
#endif /*__cplusplus*/

#endif /*VIPS_GENERATE_H*/