xorg-server-1.4/include/colormapst.h

   1 /*
   2
   3 Copyright 1987, 1998  The Open Group
   4
   5 Permission to use, copy, modify, distribute, and sell this software and its
   6 documentation for any purpose is hereby granted without fee, provided that
   7 the above copyright notice appear in all copies and that both that
   8 copyright notice and this permission notice appear in supporting
   9 documentation.
  10
  11 The above copyright notice and this permission notice shall be included in
  12 all copies or substantial portions of the Software.
  13
  14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  20
  21 Except as contained in this notice, the name of The Open Group shall not be
  22 used in advertising or otherwise to promote the sale, use or other dealings
  23 in this Software without prior written authorization from The Open Group.
  24
  25
  26 Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
  27
  28                         All Rights Reserved
  29
  30 Permission to use, copy, modify, and distribute this software and its
  31 documentation for any purpose and without fee is hereby granted,
  32 provided that the above copyright notice appear in all copies and that
  33 both that copyright notice and this permission notice appear in
  34 supporting documentation, and that the name of Digital not be
  35 used in advertising or publicity pertaining to distribution of the
  36 software without specific, written prior permission.
  37
  38 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  39 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  40 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  41 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  42 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  43 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  44 SOFTWARE.
  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
  56 /* Shared color -- the color is used by AllocColorPlanes */
  57 typedef struct
  58 {
  59     unsigned short color;
  60     short  refcnt;
  61 } SHAREDCOLOR;
  62
  63 /* LOCO -- a local color for a PseudoColor cell. DirectColor maps always
  64  * use the first value (called red) in the structure.  What channel they
  65  * are really talking about depends on which map they are in. */
  66 typedef struct
  67 {
  68     unsigned short      red, green, blue;
  69 } LOCO;
  70
  71 /* SHCO -- a shared color for a PseudoColor cell. Used with AllocColorPlanes.
  72  * DirectColor maps always use the first value (called red) in the structure.
  73  * What channel they are really talking about depends on which map they
  74  * are in. */
  75 typedef struct
  76 {
  77     SHAREDCOLOR *red, *green, *blue;
  78 } SHCO;
  79
  80
  81 /* color map entry */
  82 typedef struct _CMEntry
  83 {
  84     union
  85     {
  86         LOCO    local;
  87         SHCO    shco;
  88     } co;
  89     short       refcnt;
  90     Bool        fShared;
  91 } Entry;
  92
  93 /*
  94  * COLORMAPs can be used for either Direct or Pseudo color.  PseudoColor
  95  * only needs one cell table, we arbitrarily pick red.  We keep track
  96  * of that table with freeRed, numPixelsRed, and clientPixelsRed
  97  *
  98  * The padN variables are unfortunate ABI BC. See fdo bug #6924.
  99  */
 100
 101 typedef struct _ColormapRec
 102 {
 103     VisualPtr   pVisual;
 104     short       class;          /* PseudoColor or DirectColor */
 105 #if defined(_XSERVER64)
 106     short       pad0;
 107     XID         pad1;
 108 #endif
 109     XID         mid;            /* client's name for colormap */
 110 #if defined(_XSERVER64) && (X_BYTE_ORDER == X_LITTLE_ENDIAN)
 111     XID         pad2;
 112 #endif
 113     ScreenPtr   pScreen;        /* screen map is associated with */
 114     short       flags;          /* 1 = IsDefault
 115                                  * 2 = AllAllocated */
 116     int         freeRed;
 117     int         freeGreen;
 118     int         freeBlue;
 119     int         *numPixelsRed;
 120     int         *numPixelsGreen;
 121     int         *numPixelsBlue;
 122     Pixel       **clientPixelsRed;
 123     Pixel       **clientPixelsGreen;
 124     Pixel       **clientPixelsBlue;
 125     Entry       *red;
 126     Entry       *green;
 127     Entry       *blue;
 128     pointer     devPriv;
 129     DevUnion    *devPrivates;   /* dynamic devPrivates added after devPriv
 130                                    already existed - must keep devPriv */
 131 } ColormapRec;
 132
 133 #endif /* COLORMAP_H */