| 1 | /*
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| 2 | * mibstorest.h
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| 3 | *
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| 4 | * internal structure definitions for mi backing store
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| 5 | */
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| 6 |
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| 7 |
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| 8 | /*
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| 9 |
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| 10 | Copyright 1989, 1998 The Open Group
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| 11 |
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| 12 | Permission to use, copy, modify, distribute, and sell this software and its
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| 13 | documentation for any purpose is hereby granted without fee, provided that
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| 14 | the above copyright notice appear in all copies and that both that
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| 15 | copyright notice and this permission notice appear in supporting
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| 16 | documentation.
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| 17 |
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| 18 | The above copyright notice and this permission notice shall be included in
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| 19 | all copies or substantial portions of the Software.
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| 20 |
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| 21 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| 22 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 23 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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| 24 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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| 25 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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| 26 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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| 27 |
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| 28 | Except as contained in this notice, the name of The Open Group shall not be
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| 29 | used in advertising or otherwise to promote the sale, use or other dealings
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| 30 | in this Software without prior written authorization from The Open Group.
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| 31 | */
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| 32 |
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| 33 |
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| 34 | #ifdef HAVE_DIX_CONFIG_H
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| 35 | #include <dix-config.h>
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| 36 | #endif
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| 37 |
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| 38 | #include "mibstore.h"
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| 39 | #include "regionstr.h"
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| 40 |
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| 41 | /*
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| 42 | * One of these structures is allocated per GC used with a backing-store
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| 43 | * drawable.
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| 44 | */
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| 45 |
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| 46 | typedef struct {
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| 47 | GCPtr pBackingGC; /* Copy of the GC but with graphicsExposures
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| 48 | * set FALSE and the clientClip set to
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| 49 | * clip output to the valid regions of the
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| 50 | * backing pixmap. */
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| 51 | int guarantee; /* GuaranteeNothing, etc. */
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| 52 | unsigned long serialNumber; /* clientClip computed time */
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| 53 | unsigned long stateChanges; /* changes in parent gc since last copy */
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| 54 | GCOps *wrapOps; /* wrapped ops */
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| 55 | GCFuncs *wrapFuncs; /* wrapped funcs */
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| 56 | } miBSGCRec, *miBSGCPtr;
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| 57 |
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| 58 | /*
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| 59 | * one of these structures is allocated per Window with backing store
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| 60 | */
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| 61 |
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| 62 | typedef struct {
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| 63 | PixmapPtr pBackingPixmap; /* Pixmap for saved areas */
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| 64 | short x; /* origin of pixmap relative to window */
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| 65 | short y;
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| 66 | RegionRec SavedRegion; /* Valid area in pBackingPixmap */
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| 67 | char viewable; /* Tracks pWin->viewable so SavedRegion may
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| 68 | * be initialized correctly when the window
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| 69 | * is first mapped */
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| 70 | char status; /* StatusNoPixmap, etc. */
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| 71 | char backgroundState; /* background type */
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| 72 | PixUnion background; /* background pattern */
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| 73 | } miBSWindowRec, *miBSWindowPtr;
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| 74 |
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| 75 | #define StatusNoPixmap 1 /* pixmap has not been created */
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| 76 | #define StatusVirtual 2 /* pixmap is virtual, tiled with background */
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| 77 | #define StatusVDirty 3 /* pixmap is virtual, visiblt has contents */
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| 78 | #define StatusBadAlloc 4 /* pixmap create failed, do not try again */
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| 79 | #define StatusContents 5 /* pixmap is created, has valid contents */
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| 80 |
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| 81 | typedef struct {
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| 82 | /*
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| 83 | * screen func wrappers
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| 84 | */
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| 85 | CloseScreenProcPtr CloseScreen;
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| 86 | GetImageProcPtr GetImage;
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| 87 | GetSpansProcPtr GetSpans;
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| 88 | ChangeWindowAttributesProcPtr ChangeWindowAttributes;
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| 89 | CreateGCProcPtr CreateGC;
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| 90 | DestroyWindowProcPtr DestroyWindow;
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| 91 | } miBSScreenRec, *miBSScreenPtr;
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