Imported Upstream version 1.15.1
[deb_xorg-server.git] / include / colormapst.h
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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
25Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
26
27 All Rights Reserved
28
29Permission to use, copy, modify, and distribute this software and its
30documentation for any purpose and without fee is hereby granted,
31provided that the above copyright notice appear in all copies and that
32both that copyright notice and this permission notice appear in
33supporting documentation, and that the name of Digital not be
34used in advertising or publicity pertaining to distribution of the
35software without specific, written prior permission.
36
37DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
38ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
39DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
40ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
41WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
42ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
43SOFTWARE.
44
45*/
46
47#ifndef CMAPSTRUCT_H
48#define CMAPSTRUCT_H 1
49
50#include "colormap.h"
51#include "screenint.h"
52#include "privates.h"
53
54/* Shared color -- the color is used by AllocColorPlanes */
55typedef struct {
56 unsigned short color;
57 short refcnt;
58} SHAREDCOLOR;
59
60/* LOCO -- a local color for a PseudoColor cell. DirectColor maps always
61 * use the first value (called red) in the structure. What channel they
62 * are really talking about depends on which map they are in. */
63typedef struct {
64 unsigned short red, green, blue;
65} LOCO;
66
67/* SHCO -- a shared color for a PseudoColor cell. Used with AllocColorPlanes.
68 * DirectColor maps always use the first value (called red) in the structure.
69 * What channel they are really talking about depends on which map they
70 * are in. */
71typedef struct {
72 SHAREDCOLOR *red, *green, *blue;
73} SHCO;
74
75/* color map entry */
76typedef struct _CMEntry {
77 union {
78 LOCO local;
79 SHCO shco;
80 } co;
81 short refcnt;
82 Bool fShared;
83} Entry;
84
85/* COLORMAPs can be used for either Direct or Pseudo color. PseudoColor
86 * only needs one cell table, we arbitrarily pick red. We keep track
87 * of that table with freeRed, numPixelsRed, and clientPixelsRed */
88
89typedef struct _ColormapRec {
90 VisualPtr pVisual;
91 short class; /* PseudoColor or DirectColor */
92 XID mid; /* client's name for colormap */
93 ScreenPtr pScreen; /* screen map is associated with */
94 short flags; /* 1 = IsDefault
95 * 2 = AllAllocated */
96 int freeRed;
97 int freeGreen;
98 int freeBlue;
99 int *numPixelsRed;
100 int *numPixelsGreen;
101 int *numPixelsBlue;
102 Pixel **clientPixelsRed;
103 Pixel **clientPixelsGreen;
104 Pixel **clientPixelsBlue;
105 Entry *red;
106 Entry *green;
107 Entry *blue;
108 PrivateRec *devPrivates;
109} ColormapRec;
110
111#endif /* COLORMAP_H */