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/*
(C) 2000 Nemosoft Unv. nemosoft@smcc.demon.nl
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef CCVT_H
#define CCVT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Colour ConVerT: going from one colour space to another
Format descriptions:
420i = "4:2:0 interlaced"
YYYY UU YYYY UU even lines
YYYY VV YYYY VV odd lines
U/V data is subsampled by 2 both in horizontal
and vertical directions, and intermixed with the Y values.
420p = "4:2:0 planar"
YYYYYYYY N lines
UUUU N/2 lines
VVVV N/2 lines
U/V is again subsampled, but all the Ys, Us and Vs are placed
together in separate buffers. The buffers may be placed in
one piece of contiguous memory though, with Y buffer first,
followed by U, followed by V.
yuyv = "4:2:2 interlaced"
YUYV YUYV YUYV ... N lines
The U/V data is subsampled by 2 in horizontal direction only.
bgr24 = 3 bytes per pixel, in the order Blue Green Red (whoever came up
with that idea...)
rgb24 = 3 bytes per pixel, in the order Red Green Blue (which is sensible)
rgb32 = 4 bytes per pixel, in the order Red Green Blue Alpha, with
Alpha really being a filler byte (0)
bgr32 = last but not least, 4 bytes per pixel, in the order Blue Green Red
Alpha, Alpha again a filler byte (0)
*/
/* Functions in ccvt_i386.S/ccvt_c.c */
/* 4:2:0 YUV interlaced to RGB/BGR */
void ccvt_420i_bgr24(int width, int height, void *src, void *dst);
void ccvt_420i_rgb24(int width, int height, void *src, void *dst);
void ccvt_420i_bgr32(int width, int height, void *src, void *dst);
void ccvt_420i_rgb32(int width, int height, void *src, void *dst);
/* 4:2:2 YUYV interlaced to RGB/BGR */
void ccvt_yuyv_rgb32(int width, int height, void *src, void *dst);
void ccvt_yuyv_bgr32(int width, int height, void *src, void *dst);
/* 4:2:0 YUV planar to RGB/BGR */
void ccvt_420p_rgb32(int width, int height, void *srcy, void *srcu, void *srcv, void *dst);
void ccvt_420p_bgr32(int width, int height, void *srcy, void *srcu, void *srcv, void *dst);
void ccvt_420p_rgb24(int width, int height, void *srcy, void *srcu, void *srcv, void *dst);
void ccvt_420p_bgr24(int width, int height, void *srcy, void *srcu, void *srcv, void *dst);
/* RGB/BGR to 4:2:0 YUV interlaced */
/* RGB/BGR to 4:2:0 YUV planar */
void ccvt_rgb24_420p(int width, int height, void *src, void *dsty, void *dstu, void *dstv);
void ccvt_bgr24_420p(int width, int height, void *src, void *dsty, void *dstu, void *dstv);
/* Go from 420i to other yuv formats */
void ccvt_420i_420p(int width, int height, void *src, void *dsty, void *dstu, void *dstv);
void ccvt_420i_yuyv(int width, int height, void *src, void *dst);
#ifdef __cplusplus
}
#endif
#endif