1/*
2
3Copyright 1987, 1998  The Open Group
4
5Permission to use, copy, modify, distribute, and sell this software and its
6documentation for any purpose is hereby granted without fee, provided that
7the above copyright notice appear in all copies and that both that
8copyright notice and this permission notice appear in supporting
9documentation.
10
11The above copyright notice and this permission notice shall be included in
12all copies or substantial portions of the Software.
13
14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
17OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20
21Except as contained in this notice, the name of The Open Group shall not be
22used in advertising or otherwise to promote the sale, use or other dealings
23in this Software without prior written authorization from The Open Group.
24
25
26Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
27
28                        All Rights Reserved
29
30Permission to use, copy, modify, and distribute this software and its
31documentation for any purpose and without fee is hereby granted,
32provided that the above copyright notice appear in all copies and that
33both that copyright notice and this permission notice appear in
34supporting documentation, and that the name of Digital not be
35used in advertising or publicity pertaining to distribution of the
36software without specific, written prior permission.
37
38DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
39ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
40DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
41ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
42WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
43ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
44SOFTWARE.
45
46*/
47
48#ifndef CMAPSTRUCT_H
49#define CMAPSTRUCT_H 1
50
51#include <X11/Xarch.h>
52
53#include "colormap.h"
54#include "screenint.h"
55#include "privates.h"
56
57/* Shared color -- the color is used by AllocColorPlanes */
58typedef struct
59{
60    unsigned short color;
61    short  refcnt;
62} SHAREDCOLOR;
63
64/* LOCO -- a local color for a PseudoColor cell. DirectColor maps always
65 * use the first value (called red) in the structure.  What channel they
66 * are really talking about depends on which map they are in. */
67typedef struct
68{
69    unsigned short	red, green, blue;
70} LOCO;
71
72/* SHCO -- a shared color for a PseudoColor cell. Used with AllocColorPlanes.
73 * DirectColor maps always use the first value (called red) in the structure.
74 * What channel they are really talking about depends on which map they
75 * are in. */
76typedef struct
77{
78    SHAREDCOLOR *red, *green, *blue;
79} SHCO;
80
81
82/* color map entry */
83typedef struct _CMEntry
84{
85    union
86    {
87	LOCO	local;
88	SHCO	shco;
89    } co;
90    short	refcnt;
91    Bool	fShared;
92} Entry;
93
94/*
95 * COLORMAPs can be used for either Direct or Pseudo color.  PseudoColor
96 * only needs one cell table, we arbitrarily pick red.  We keep track
97 * of that table with freeRed, numPixelsRed, and clientPixelsRed
98 *
99 * The padN variables are unfortunate ABI BC. See fdo bug #6924.
100 */
101
102typedef struct _ColormapRec
103{
104    VisualPtr	pVisual;
105    short	class;		/* PseudoColor or DirectColor */
106#if defined(_LP64)
107    short	pad0;
108    XID		pad1;
109#endif
110    XID		mid;		/* client's name for colormap */
111#if defined(_LP64) && (X_BYTE_ORDER == X_LITTLE_ENDIAN)
112    XID		pad2;
113#endif
114    ScreenPtr	pScreen;	/* screen map is associated with */
115    short	flags;		/* 1 = IsDefault
116				 * 2 = AllAllocated */
117    int		freeRed;
118    int		freeGreen;
119    int		freeBlue;
120    int		*numPixelsRed;
121    int		*numPixelsGreen;
122    int		*numPixelsBlue;
123    Pixel	**clientPixelsRed;
124    Pixel	**clientPixelsGreen;
125    Pixel	**clientPixelsBlue;
126    Entry	*red;
127    Entry 	*green;
128    Entry	*blue;
129    PrivateRec	*devPrivates;
130} ColormapRec;
131
132#endif /* COLORMAP_H */
133