2 * Image Scaling Functions
3 * Copyright (c) 2005 David A. Schleef <ds@schleef.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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25 * POSSIBILITY OF SUCH DAMAGE.
28 #ifndef __VS_IMAGE_H__
29 #define __VS_IMAGE_H__
34 typedef struct _VSImage VSImage;
40 int border_left, border_right;
41 int border_top, border_bottom;
48 void vs_image_scale_nearest_RGBA (const VSImage *dest, const VSImage *src,
50 void vs_image_scale_linear_RGBA (const VSImage *dest, const VSImage *src,
52 void vs_image_scale_lanczos_AYUV (const VSImage * dest, const VSImage * src,
53 uint8_t * tmpbuf, double sharpness, gboolean dither, int submethod,
54 double a, double sharpen);
56 void vs_image_scale_nearest_RGB (const VSImage *dest, const VSImage *src,
58 void vs_image_scale_linear_RGB (const VSImage *dest, const VSImage *src,
61 void vs_image_scale_nearest_YUYV (const VSImage *dest, const VSImage *src,
63 void vs_image_scale_linear_YUYV (const VSImage *dest, const VSImage *src,
66 void vs_image_scale_nearest_UYVY (const VSImage *dest, const VSImage *src,
68 void vs_image_scale_linear_UYVY (const VSImage *dest, const VSImage *src,
71 void vs_image_scale_nearest_Y (const VSImage *dest, const VSImage *src,
73 void vs_image_scale_linear_Y (const VSImage *dest, const VSImage *src,
75 void vs_image_scale_lanczos_Y (const VSImage *dest, const VSImage *src,
76 uint8_t *tmpbuf, double sharpness, gboolean dither, int submethod,
77 double a, double sharpen);
79 void vs_image_scale_nearest_RGB565 (const VSImage *dest, const VSImage *src,
81 void vs_image_scale_linear_RGB565 (const VSImage *dest, const VSImage *src,
84 void vs_image_scale_nearest_RGB555 (const VSImage *dest, const VSImage *src,
86 void vs_image_scale_linear_RGB555 (const VSImage *dest, const VSImage *src,
89 void vs_image_scale_nearest_Y16 (const VSImage *dest, const VSImage *src,
91 void vs_image_scale_linear_Y16 (const VSImage *dest, const VSImage *src,
94 void vs_image_scale_nearest_AYUV16 (const VSImage *dest, const VSImage *src,
96 void vs_image_scale_linear_AYUV16 (const VSImage *dest, const VSImage *src,
99 void vs_image_scale_nearest_AYUV64 (const VSImage * dest, const VSImage * src,
101 void vs_image_scale_linear_AYUV64 (const VSImage * dest, const VSImage * src,