112 lines
3.5 KiB
C
112 lines
3.5 KiB
C
/* SPDX-License-Identifier: MIT OR X11
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*
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* Copyright © 2024 Enrico Weigelt, metux IT consult <info@metux.net>
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*/
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#ifndef _XSERVER_DIX_COLORMAP_PRIV_H
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#define _XSERVER_DIX_COLORMAP_PRIV_H
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#include <X11/Xdefs.h>
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#include <X11/Xproto.h>
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#include "dix/screenint_priv.h"
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#include "include/colormap.h"
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#include "include/colormapst.h"
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#include "include/dix.h"
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#include "include/window.h"
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/* Values for the flags field of a colormap. These should have 1 bit set
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* and not overlap */
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#define CM_IsDefault 1
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#define CM_AllAllocated 2
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#define CM_BeingCreated 4
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/* Shared color -- the color is used by AllocColorPlanes */
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typedef struct {
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unsigned short color;
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short refcnt;
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} SHAREDCOLOR;
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/* SHCO -- a shared color for a PseudoColor cell. Used with AllocColorPlanes.
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* DirectColor maps always use the first value (called red) in the structure.
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* What channel they are really talking about depends on which map they
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* are in. */
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typedef struct {
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SHAREDCOLOR *red, *green, *blue;
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} SHCO;
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/* color map entry */
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typedef struct _CMEntry {
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union {
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LOCO local;
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SHCO shco;
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} co;
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short refcnt;
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Bool fShared;
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} Entry, *EntryPtr;
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/* COLORMAPs can be used for either Direct or Pseudo color. PseudoColor
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* only needs one cell table, we arbitrarily pick red. We keep track
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* of that table with freeRed, numPixelsRed, and clientPixelsRed */
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typedef struct _ColormapRec {
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VisualPtr pVisual;
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short class; /* PseudoColor or DirectColor */
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XID mid; /* client's name for colormap */
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ScreenPtr pScreen; /* screen map is associated with */
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short flags; /* 1 = CM_IsDefault
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* 2 = CM_AllAllocated */
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int freeRed;
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int freeGreen;
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int freeBlue;
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int *numPixelsRed;
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int *numPixelsGreen;
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int *numPixelsBlue;
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Pixel **clientPixelsRed;
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Pixel **clientPixelsGreen;
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Pixel **clientPixelsBlue;
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Entry *red;
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Entry *green;
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Entry *blue;
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PrivateRec *devPrivates;
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} ColormapRec;
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int dixCreateColormap(Colormap mid, ScreenPtr pScreen, VisualPtr pVisual,
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ColormapPtr *ppcmap, int alloc, ClientPtr client);
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/* should only be called via resource type's destructor */
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int FreeColormap(void *pmap, XID mid);
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int TellLostMap(WindowPtr pwin, void *value);
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int TellGainedMap(WindowPtr pwin, void *value);
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int CopyColormapAndFree(Colormap mid, ColormapPtr pSrc, int client);
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int AllocColor(ColormapPtr pmap, unsigned short *pred, unsigned short *pgreen,
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unsigned short *pblue, Pixel *pPix, int client );
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void FakeAllocColor(ColormapPtr pmap, xColorItem *item);
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void FakeFreeColor(ColormapPtr pmap, Pixel pixel);
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int QueryColors(ColormapPtr pmap, int count, Pixel *ppixIn,
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xrgb *prgbList, ClientPtr client);
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/* should only be called via resource type's destructor */
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int FreeClientPixels(void *pcr, XID fakeid);
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int AllocColorCells(ClientPtr pClient, ColormapPtr pmap, int colors, int planes,
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Bool contig, Pixel *ppix, Pixel *masks);
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int AllocColorPlanes(int client, ColormapPtr pmap, int colors, int r, int g,
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int b, Bool contig, Pixel *pixels, Pixel *prmask,
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Pixel *pgmask, Pixel *pbmask);
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int FreeColors(ColormapPtr pmap, int client, int count, Pixel *pixels, Pixel mask);
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int StoreColors(ColormapPtr pmap, int count, xColorItem * defs, ClientPtr client);
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int IsMapInstalled(Colormap map, WindowPtr pWin);
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#endif /* _XSERVER_DIX_COLORMAP_PRIV_H */
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