/* * Image Scaling Functions * Copyright (c) 2005 David A. Schleef * 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__ #include 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