4 * internal structure definitions for mi backing store
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34 #ifdef HAVE_DIX_CONFIG_H
35 #include <dix-config.h>
39 #include "regionstr.h"
42 * One of these structures is allocated per GC used with a backing-store
47 GCPtr pBackingGC; /* Copy of the GC but with graphicsExposures
48 * set FALSE and the clientClip set to
49 * clip output to the valid regions of the
51 int guarantee; /* GuaranteeNothing, etc. */
52 unsigned long serialNumber; /* clientClip computed time */
53 unsigned long stateChanges; /* changes in parent gc since last copy */
54 GCOps *wrapOps; /* wrapped ops */
55 GCFuncs *wrapFuncs; /* wrapped funcs */
56 } miBSGCRec, *miBSGCPtr;
59 * one of these structures is allocated per Window with backing store
63 PixmapPtr pBackingPixmap; /* Pixmap for saved areas */
64 short x; /* origin of pixmap relative to window */
66 RegionRec SavedRegion; /* Valid area in pBackingPixmap */
67 char viewable; /* Tracks pWin->viewable so SavedRegion may
68 * be initialized correctly when the window
70 char status; /* StatusNoPixmap, etc. */
71 char backgroundState; /* background type */
72 PixUnion background; /* background pattern */
73 } miBSWindowRec, *miBSWindowPtr;
75 #define StatusNoPixmap 1 /* pixmap has not been created */
76 #define StatusVirtual 2 /* pixmap is virtual, tiled with background */
77 #define StatusVDirty 3 /* pixmap is virtual, visiblt has contents */
78 #define StatusBadAlloc 4 /* pixmap create failed, do not try again */
79 #define StatusContents 5 /* pixmap is created, has valid contents */
83 * screen func wrappers
85 CloseScreenProcPtr CloseScreen;
86 GetImageProcPtr GetImage;
87 GetSpansProcPtr GetSpans;
88 ChangeWindowAttributesProcPtr ChangeWindowAttributes;
89 CreateGCProcPtr CreateGC;
90 DestroyWindowProcPtr DestroyWindow;
91 } miBSScreenRec, *miBSScreenPtr;