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
24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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 G_GNUC_INTERNAL void vs_image_scale_nearest_RGBA (const VSImage * dest,
51 G_GNUC_INTERNAL void vs_image_scale_linear_RGBA (const VSImage * dest,
56 G_GNUC_INTERNAL void vs_image_scale_lanczos_AYUV (const VSImage * dest,
65 G_GNUC_INTERNAL void vs_image_scale_lanczos_AYUV64 (const VSImage * dest,
75 G_GNUC_INTERNAL void vs_image_scale_nearest_RGB (const VSImage * dest,
79 G_GNUC_INTERNAL void vs_image_scale_linear_RGB (const VSImage * dest,
84 G_GNUC_INTERNAL void vs_image_scale_nearest_YUYV (const VSImage * dest,
88 G_GNUC_INTERNAL void vs_image_scale_linear_YUYV (const VSImage * dest,
93 G_GNUC_INTERNAL void vs_image_scale_nearest_UYVY (const VSImage * dest,
97 G_GNUC_INTERNAL void vs_image_scale_linear_UYVY (const VSImage * dest,
102 G_GNUC_INTERNAL void vs_image_scale_nearest_NV12 (const VSImage * dest,
106 G_GNUC_INTERNAL void vs_image_scale_linear_NV12 (const VSImage * dest,
111 G_GNUC_INTERNAL void vs_image_scale_nearest_Y (const VSImage * dest,
115 G_GNUC_INTERNAL void vs_image_scale_linear_Y (const VSImage * dest,
119 G_GNUC_INTERNAL void vs_image_scale_lanczos_Y (const VSImage * dest,
129 G_GNUC_INTERNAL void vs_image_scale_nearest_RGB565 (const VSImage * dest,
133 G_GNUC_INTERNAL void vs_image_scale_linear_RGB565 (const VSImage * dest,
138 G_GNUC_INTERNAL void vs_image_scale_nearest_RGB555 (const VSImage * dest,
142 G_GNUC_INTERNAL void vs_image_scale_linear_RGB555 (const VSImage * dest,
147 G_GNUC_INTERNAL void vs_image_scale_nearest_Y16 (const VSImage * dest,
151 G_GNUC_INTERNAL void vs_image_scale_linear_Y16 (const VSImage * dest,
156 G_GNUC_INTERNAL void vs_image_scale_nearest_AYUV16 (const VSImage * dest,
160 G_GNUC_INTERNAL void vs_image_scale_linear_AYUV16 (const VSImage * dest,
165 G_GNUC_INTERNAL void vs_image_scale_nearest_AYUV64 (const VSImage * dest,
169 G_GNUC_INTERNAL void vs_image_scale_linear_AYUV64 (const VSImage * dest,