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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1983, by Sun Microsystems, Inc.
*/
#ifndef _SYS_CMS_H
#define _SYS_CMS_H
#pragma ident "%Z%%M% %I% %E% SMI" /* SunOS-4.1.2 10.4 */
#ifdef __cplusplus
extern "C" {
#endif
/*
* A colormapseg is a segment of a colormap that was allocated
* to a user process. It is used to multiplex a colormap in a
* shared resource environment, i.e., multi-windows & multi-processes.
*
* The cms_addr serves as a base address of a pixel. Cms_addr is added
* with pixel values to get the true value of the colormap index.
* The value of a colormap entry is translated to the video signal that
* is sent to a monitor for a single pixel.
*
* Cms_size and cms_addr can be used by low level routines to provide some
* protection from using a part of the colormap not allocated to the cms
* by doing a bounds check on the pixel that is to be written.
*
* Cms_map is a structure that has pointers to the bytes of rgb for
* a corresponding colormapseg. The choice of this format enables
* fast read/write to most colormaps.
*/
#define CMS_NAMESIZE 20
struct colormapseg {
int cms_size; /* size of this segment of the map */
int cms_addr; /* colormap addr of start of segment */
char cms_name[CMS_NAMESIZE]; /* name segment of map (for sharing) */
};
struct cms_map {
unsigned char *cm_red, *cm_green, *cm_blue;
};
#ifdef __cplusplus
}
#endif
#endif /* _SYS_CMS_H */
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