xserver/dix/colormap_priv.h

116 lines
3.7 KiB
C

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