cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * internal structure definitions for mi backing store
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cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * One of these structures is allocated per GC used with a backing-store
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * drawable.
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsynctypedef struct {
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync GCPtr pBackingGC; /* Copy of the GC but with graphicsExposures
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * set FALSE and the clientClip set to
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * clip output to the valid regions of the
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * backing pixmap. */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync unsigned long serialNumber; /* clientClip computed time */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync unsigned long stateChanges; /* changes in parent gc since last copy */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * one of these structures is allocated per Window with backing store
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsynctypedef struct {
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync PixmapPtr pBackingPixmap; /* Pixmap for saved areas */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync short x; /* origin of pixmap relative to window */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync RegionRec SavedRegion; /* Valid area in pBackingPixmap */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync char viewable; /* Tracks pWin->viewable so SavedRegion may
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * be initialized correctly when the window
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * is first mapped */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define StatusNoPixmap 1 /* pixmap has not been created */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define StatusVirtual 2 /* pixmap is virtual, tiled with background */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define StatusVDirty 3 /* pixmap is virtual, visiblt has contents */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define StatusBadAlloc 4 /* pixmap create failed, do not try again */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define StatusContents 5 /* pixmap is created, has valid contents */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsynctypedef struct {
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * screen func wrappers