/*

 * Image Scaling Functions

 * Copyright (c) 2005 David A. Schleef <ds@schleef.org>

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,

 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING

 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGE.

 */

#ifndef __VS_IMAGE_H__

#define __VS_IMAGE_H__

typedef struct _VSImage VSImage;

struct _VSImage {

  uint8_t *pixels;

  int width;

  int height;

  int stride;

};

void vs_image_scale_nearest_RGBA (const VSImage *dest, const VSImage *src,

    uint8_t *tmpbuf);

void vs_image_scale_linear_RGBA (const VSImage *dest, const VSImage *src,

    uint8_t *tmpbuf);

void vs_image_scale_nearest_RGB (const VSImage *dest, const VSImage *src,

    uint8_t *tmpbuf);

void vs_image_scale_linear_RGB (const VSImage *dest, const VSImage *src,

    uint8_t *tmpbuf);

void vs_image_scale_nearest_YUYV (const VSImage *dest, const VSImage *src,

    uint8_t *tmpbuf);

void vs_image_scale_linear_YUYV (const VSImage *dest, const VSImage *src,

    uint8_t *tmpbuf);

void vs_image_scale_nearest_UYVY (const VSImage *dest, const VSImage *src,

    uint8_t *tmpbuf);

void vs_image_scale_linear_UYVY (const VSImage *dest, const VSImage *src,

    uint8_t *tmpbuf);

void vs_image_scale_nearest_Y (const VSImage *dest, const VSImage *src,

    uint8_t *tmpbuf);

void vs_image_scale_linear_Y (const VSImage *dest, const VSImage *src,

    uint8_t *tmpbuf);

void vs_image_scale_nearest_RGB565 (const VSImage *dest, const VSImage *src,

    uint8_t *tmpbuf);

void vs_image_scale_linear_RGB565 (const VSImage *dest, const VSImage *src,

    uint8_t *tmpbuf);

void vs_image_scale_nearest_RGB555 (const VSImage *dest, const VSImage *src,

    uint8_t *tmpbuf);

void vs_image_scale_linear_RGB555 (const VSImage *dest, const VSImage *src,

    uint8_t *tmpbuf);

#endif