| 1 | /*
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| 2 | *
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| 3 | * Copyright © 2000 Keith Packard
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| 4 | *
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| 5 | * Permission to use, copy, modify, distribute, and sell this software and its
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| 6 | * documentation for any purpose is hereby granted without fee, provided that
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| 7 | * the above copyright notice appear in all copies and that both that
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| 8 | * copyright notice and this permission notice appear in supporting
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| 9 | * documentation, and that the name of Keith Packard not be used in
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| 10 | * advertising or publicity pertaining to distribution of the software without
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| 11 | * specific, written prior permission. Keith Packard makes no
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| 12 | * representations about the suitability of this software for any purpose. It
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| 13 | * is provided "as is" without express or implied warranty.
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| 14 | *
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| 15 | * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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| 16 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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| 17 | * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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| 18 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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| 19 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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| 20 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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| 21 | * PERFORMANCE OF THIS SOFTWARE.
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| 22 | */
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| 23 |
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| 24 | #ifndef _SHADOW_H_
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| 25 | #define _SHADOW_H_
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| 26 |
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| 27 | #include "scrnintstr.h"
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| 28 |
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| 29 | #include "picturestr.h"
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| 30 |
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| 31 | #include "damage.h"
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| 32 | #include "damagestr.h"
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| 33 | typedef struct _shadowBuf *shadowBufPtr;
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| 34 |
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| 35 | typedef void (*ShadowUpdateProc) (ScreenPtr pScreen, shadowBufPtr pBuf);
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| 36 |
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| 37 | #define SHADOW_WINDOW_RELOCATE 1
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| 38 | #define SHADOW_WINDOW_READ 2
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| 39 | #define SHADOW_WINDOW_WRITE 4
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| 40 |
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| 41 | typedef void *(*ShadowWindowProc) (ScreenPtr pScreen,
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| 42 | CARD32 row,
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| 43 | CARD32 offset,
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| 44 | int mode, CARD32 *size, void *closure);
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| 45 |
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| 46 | /* BC hack: do not move the damage member. see shadow.c for explanation. */
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| 47 | typedef struct _shadowBuf {
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| 48 | DamagePtr pDamage;
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| 49 | ShadowUpdateProc update;
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| 50 | ShadowWindowProc window;
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| 51 | RegionRec damage;
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| 52 | PixmapPtr pPixmap;
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| 53 | void *closure;
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| 54 | int randr;
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| 55 |
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| 56 | /* screen wrappers */
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| 57 | GetImageProcPtr GetImage;
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| 58 | CloseScreenProcPtr CloseScreen;
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| 59 | } shadowBufRec;
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| 60 |
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| 61 | /* Match defines from randr extension */
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| 62 | #define SHADOW_ROTATE_0 1
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| 63 | #define SHADOW_ROTATE_90 2
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| 64 | #define SHADOW_ROTATE_180 4
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| 65 | #define SHADOW_ROTATE_270 8
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| 66 | #define SHADOW_ROTATE_ALL (SHADOW_ROTATE_0|SHADOW_ROTATE_90|\
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| 67 | SHADOW_ROTATE_180|SHADOW_ROTATE_270)
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| 68 | #define SHADOW_REFLECT_X 16
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| 69 | #define SHADOW_REFLECT_Y 32
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| 70 | #define SHADOW_REFLECT_ALL (SHADOW_REFLECT_X|SHADOW_REFLECT_Y)
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| 71 |
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| 72 | extern _X_EXPORT DevPrivateKey shadowScrPrivateKey;
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| 73 |
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| 74 | #define shadowGetBuf(pScr) ((shadowBufPtr) \
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| 75 | dixLookupPrivate(&(pScr)->devPrivates, shadowScrPrivateKey))
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| 76 | #define shadowBuf(pScr) shadowBufPtr pBuf = shadowGetBuf(pScr)
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| 77 | #define shadowDamage(pBuf) DamageRegion(pBuf->pDamage)
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| 78 |
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| 79 | extern _X_EXPORT Bool
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| 80 | shadowSetup(ScreenPtr pScreen);
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| 81 |
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| 82 | extern _X_EXPORT Bool
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| 83 |
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| 84 | shadowAdd(ScreenPtr pScreen,
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| 85 | PixmapPtr pPixmap,
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| 86 | ShadowUpdateProc update,
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| 87 | ShadowWindowProc window, int randr, void *closure);
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| 88 |
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| 89 | extern _X_EXPORT void
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| 90 | shadowRemove(ScreenPtr pScreen, PixmapPtr pPixmap);
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| 91 |
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| 92 | extern _X_EXPORT Bool
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| 93 |
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| 94 | shadowInit(ScreenPtr pScreen, ShadowUpdateProc update, ShadowWindowProc window);
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| 95 |
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| 96 | extern _X_EXPORT void *shadowAlloc(int width, int height, int bpp);
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| 97 |
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| 98 | extern _X_EXPORT void
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| 99 | shadowUpdatePacked(ScreenPtr pScreen, shadowBufPtr pBuf);
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| 100 |
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| 101 | extern _X_EXPORT void
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| 102 | shadowUpdatePlanar4(ScreenPtr pScreen, shadowBufPtr pBuf);
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| 103 |
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| 104 | extern _X_EXPORT void
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| 105 | shadowUpdatePlanar4x8(ScreenPtr pScreen, shadowBufPtr pBuf);
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| 106 |
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| 107 | extern _X_EXPORT void
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| 108 | shadowUpdateRotatePacked(ScreenPtr pScreen, shadowBufPtr pBuf);
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| 109 |
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| 110 | extern _X_EXPORT void
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| 111 | shadowUpdateRotate8_90(ScreenPtr pScreen, shadowBufPtr pBuf);
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| 112 |
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| 113 | extern _X_EXPORT void
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| 114 | shadowUpdateRotate16_90(ScreenPtr pScreen, shadowBufPtr pBuf);
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| 115 |
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| 116 | extern _X_EXPORT void
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| 117 | shadowUpdateRotate16_90YX(ScreenPtr pScreen, shadowBufPtr pBuf);
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| 118 |
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| 119 | extern _X_EXPORT void
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| 120 | shadowUpdateRotate32_90(ScreenPtr pScreen, shadowBufPtr pBuf);
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| 121 |
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| 122 | extern _X_EXPORT void
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| 123 | shadowUpdateRotate8_180(ScreenPtr pScreen, shadowBufPtr pBuf);
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| 124 |
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| 125 | extern _X_EXPORT void
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| 126 | shadowUpdateRotate16_180(ScreenPtr pScreen, shadowBufPtr pBuf);
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| 127 |
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| 128 | extern _X_EXPORT void
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| 129 | shadowUpdateRotate32_180(ScreenPtr pScreen, shadowBufPtr pBuf);
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| 130 |
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| 131 | extern _X_EXPORT void
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| 132 | shadowUpdateRotate8_270(ScreenPtr pScreen, shadowBufPtr pBuf);
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| 133 |
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| 134 | extern _X_EXPORT void
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| 135 | shadowUpdateRotate16_270(ScreenPtr pScreen, shadowBufPtr pBuf);
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| 136 |
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| 137 | extern _X_EXPORT void
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| 138 | shadowUpdateRotate16_270YX(ScreenPtr pScreen, shadowBufPtr pBuf);
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| 139 |
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| 140 | extern _X_EXPORT void
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| 141 | shadowUpdateRotate32_270(ScreenPtr pScreen, shadowBufPtr pBuf);
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| 142 |
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| 143 | extern _X_EXPORT void
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| 144 | shadowUpdateRotate8(ScreenPtr pScreen, shadowBufPtr pBuf);
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| 145 |
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| 146 | extern _X_EXPORT void
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| 147 | shadowUpdateRotate16(ScreenPtr pScreen, shadowBufPtr pBuf);
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| 148 |
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| 149 | extern _X_EXPORT void
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| 150 | shadowUpdateRotate32(ScreenPtr pScreen, shadowBufPtr pBuf);
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| 151 |
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| 152 | typedef void (*shadowUpdateProc) (ScreenPtr, shadowBufPtr);
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| 153 |
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| 154 | extern _X_EXPORT shadowUpdateProc shadowUpdatePackedWeak(void);
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| 155 | extern _X_EXPORT shadowUpdateProc shadowUpdatePlanar4Weak(void);
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| 156 | extern _X_EXPORT shadowUpdateProc shadowUpdatePlanar4x8Weak(void);
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| 157 | extern _X_EXPORT shadowUpdateProc shadowUpdateRotatePackedWeak(void);
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| 158 |
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| 159 | #endif /* _SHADOW_H_ */
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