| 1 | /*
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| 2 | * Copyright © 2003 Keith Packard
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| 3 | *
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| 4 | * Permission to use, copy, modify, distribute, and sell this software and its
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| 5 | * documentation for any purpose is hereby granted without fee, provided that
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| 6 | * the above copyright notice appear in all copies and that both that
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| 7 | * copyright notice and this permission notice appear in supporting
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| 8 | * documentation, and that the name of Keith Packard not be used in
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| 9 | * advertising or publicity pertaining to distribution of the software without
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| 10 | * specific, written prior permission. Keith Packard makes no
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| 11 | * representations about the suitability of this software for any purpose. It
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| 12 | * is provided "as is" without express or implied warranty.
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| 13 | *
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| 14 | * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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| 15 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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| 16 | * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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| 17 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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| 18 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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| 19 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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| 20 | * PERFORMANCE OF THIS SOFTWARE.
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| 21 | */
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| 22 |
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| 23 | #ifdef HAVE_DIX_CONFIG_H
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| 24 | #include <dix-config.h>
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| 25 | #endif
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| 26 |
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| 27 | #ifndef _DAMAGE_H_
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| 28 | #define _DAMAGE_H_
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| 29 |
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| 30 | typedef struct _damage *DamagePtr;
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| 31 |
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| 32 | typedef enum _damageReportLevel {
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| 33 | DamageReportRawRegion,
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| 34 | DamageReportDeltaRegion,
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| 35 | DamageReportBoundingBox,
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| 36 | DamageReportNonEmpty,
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| 37 | DamageReportNone
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| 38 | } DamageReportLevel;
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| 39 |
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| 40 | typedef void (*DamageReportFunc) (DamagePtr pDamage, RegionPtr pRegion,
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| 41 | void *closure);
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| 42 | typedef void (*DamageDestroyFunc) (DamagePtr pDamage, void *closure);
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| 43 |
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| 44 | /* It's the responsibility of the driver to duplicate both regions. */
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| 45 | /* At some point DamageRegionRendered() must be called. */
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| 46 | typedef void (*DamageMarkerFunc) (DrawablePtr pDrawable, DamagePtr pDamage,
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| 47 | RegionPtr pOldDamage, RegionPtr pRegion,
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| 48 | void *closure);
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| 49 |
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| 50 | typedef void (*DamageScreenCreateFunc) (DamagePtr);
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| 51 | typedef void (*DamageScreenRegisterFunc) (DrawablePtr, DamagePtr);
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| 52 | typedef void (*DamageScreenUnregisterFunc) (DrawablePtr, DamagePtr);
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| 53 | typedef void (*DamageScreenDestroyFunc) (DamagePtr);
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| 54 |
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| 55 | typedef struct _damageScreenFuncs {
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| 56 | DamageScreenCreateFunc Create;
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| 57 | DamageScreenRegisterFunc Register;
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| 58 | DamageScreenUnregisterFunc Unregister;
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| 59 | DamageScreenDestroyFunc Destroy;
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| 60 | } DamageScreenFuncsRec, *DamageScreenFuncsPtr;
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| 61 |
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| 62 | extern _X_EXPORT void miDamageCreate(DamagePtr);
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| 63 | extern _X_EXPORT void miDamageRegister(DrawablePtr, DamagePtr);
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| 64 | extern _X_EXPORT void miDamageUnregister(DrawablePtr, DamagePtr);
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| 65 | extern _X_EXPORT void miDamageDestroy(DamagePtr);
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| 66 |
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| 67 | extern _X_EXPORT Bool
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| 68 | DamageSetup(ScreenPtr pScreen);
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| 69 |
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| 70 | extern _X_EXPORT DamagePtr
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| 71 | DamageCreate(DamageReportFunc damageReport,
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| 72 | DamageDestroyFunc damageDestroy,
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| 73 | DamageReportLevel damageLevel,
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| 74 | Bool isInternal, ScreenPtr pScreen, void *closure);
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| 75 |
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| 76 | extern _X_EXPORT void
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| 77 | DamageDrawInternal(ScreenPtr pScreen, Bool enable);
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| 78 |
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| 79 | extern _X_EXPORT void
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| 80 | DamageRegister(DrawablePtr pDrawable, DamagePtr pDamage);
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| 81 |
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| 82 | extern _X_EXPORT void
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| 83 | DamageUnregister(DrawablePtr pDrawable, DamagePtr pDamage);
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| 84 |
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| 85 | extern _X_EXPORT void
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| 86 | DamageDestroy(DamagePtr pDamage);
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| 87 |
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| 88 | extern _X_EXPORT Bool
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| 89 | DamageSubtract(DamagePtr pDamage, const RegionPtr pRegion);
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| 90 |
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| 91 | extern _X_EXPORT void
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| 92 | DamageEmpty(DamagePtr pDamage);
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| 93 |
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| 94 | extern _X_EXPORT RegionPtr
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| 95 | DamageRegion(DamagePtr pDamage);
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| 96 |
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| 97 | extern _X_EXPORT RegionPtr
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| 98 | DamagePendingRegion(DamagePtr pDamage);
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| 99 |
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| 100 | /* In case of rendering, call this before the submitting the commands. */
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| 101 | extern _X_EXPORT void
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| 102 | DamageRegionAppend(DrawablePtr pDrawable, RegionPtr pRegion);
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| 103 |
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| 104 | /* Call this directly after the rendering operation has been submitted. */
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| 105 | extern _X_EXPORT void
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| 106 | DamageRegionProcessPending(DrawablePtr pDrawable);
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| 107 |
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| 108 | /* Call this some time after rendering is done, only relevant when a damageMarker is provided. */
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| 109 | extern _X_EXPORT void
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| 110 |
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| 111 | DamageRegionRendered(DrawablePtr pDrawable, DamagePtr pDamage,
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| 112 | RegionPtr pOldDamage, RegionPtr pRegion);
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| 113 |
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| 114 | /* Call this when you create a new Damage and you wish to send an initial damage message (to it). */
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| 115 | extern _X_EXPORT void
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| 116 | DamageReportDamage(DamagePtr pDamage, RegionPtr pDamageRegion);
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| 117 |
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| 118 | /* Avoid using this call, it only exists for API compatibility. */
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| 119 | extern _X_EXPORT void
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| 120 | DamageDamageRegion(DrawablePtr pDrawable, const RegionPtr pRegion);
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| 121 |
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| 122 | extern _X_EXPORT void
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| 123 | DamageSetReportAfterOp(DamagePtr pDamage, Bool reportAfter);
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| 124 |
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| 125 | extern _X_EXPORT void
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| 126 |
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| 127 | DamageSetPostRenderingFunctions(DamagePtr pDamage,
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| 128 | DamageReportFunc damageReportPostRendering,
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| 129 | DamageMarkerFunc damageMarker);
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| 130 |
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| 131 | extern _X_EXPORT DamageScreenFuncsPtr DamageGetScreenFuncs(ScreenPtr);
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| 132 |
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| 133 | #endif /* _DAMAGE_H_ */
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