miext/shadow/shadow.h

   1 /*
   2  *
   3  * Copyright © 2000 Keith Packard
   4  *
   5  * Permission to use, copy, modify, distribute, and sell this software and its
   6  * documentation for any purpose is hereby granted without fee, provided that
   7  * the above copyright notice appear in all copies and that both that
   8  * copyright notice and this permission notice appear in supporting
   9  * documentation, and that the name of Keith Packard not be used in
  10  * advertising or publicity pertaining to distribution of the software without
  11  * specific, written prior permission.  Keith Packard makes no
  12  * representations about the suitability of this software for any purpose.  It
  13  * is provided "as is" without express or implied warranty.
  14  *
  15  * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  16  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  17  * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  18  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  19  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  20  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  21  * PERFORMANCE OF THIS SOFTWARE.
  22  */
  23
  24 #ifndef _SHADOW_H_
  25 #define _SHADOW_H_
  26
  27 #include "scrnintstr.h"
  28
  29 #include "picturestr.h"
  30
  31 #include "damage.h"
  32 #include "damagestr.h"
  33 typedef struct _shadowBuf *shadowBufPtr;
  34
  35 typedef void (*ShadowUpdateProc) (ScreenPtr pScreen, shadowBufPtr pBuf);
  36
  37 #define SHADOW_WINDOW_RELOCATE 1
  38 #define SHADOW_WINDOW_READ 2
  39 #define SHADOW_WINDOW_WRITE 4
  40
  41 typedef void *(*ShadowWindowProc) (ScreenPtr pScreen,
  42                                    CARD32 row,
  43                                    CARD32 offset,
  44                                    int mode, CARD32 *size, void *closure);
  45
  46 /* BC hack: do not move the damage member.  see shadow.c for explanation. */
  47 typedef struct _shadowBuf {
  48     DamagePtr pDamage;
  49     ShadowUpdateProc update;
  50     ShadowWindowProc window;
  51     RegionRec damage;
  52     PixmapPtr pPixmap;
  53     void *closure;
  54     int randr;
  55
  56     /* screen wrappers */
  57     GetImageProcPtr GetImage;
  58     CloseScreenProcPtr CloseScreen;
  59 } shadowBufRec;
  60
  61 /* Match defines from randr extension */
  62 #define SHADOW_ROTATE_0     1
  63 #define SHADOW_ROTATE_90    2
  64 #define SHADOW_ROTATE_180   4
  65 #define SHADOW_ROTATE_270   8
  66 #define SHADOW_ROTATE_ALL   (SHADOW_ROTATE_0|SHADOW_ROTATE_90|\
  67                              SHADOW_ROTATE_180|SHADOW_ROTATE_270)
  68 #define SHADOW_REFLECT_X    16
  69 #define SHADOW_REFLECT_Y    32
  70 #define SHADOW_REFLECT_ALL  (SHADOW_REFLECT_X|SHADOW_REFLECT_Y)
  71
  72 extern _X_EXPORT DevPrivateKey shadowScrPrivateKey;
  73
  74 #define shadowGetBuf(pScr) ((shadowBufPtr) \
  75     dixLookupPrivate(&(pScr)->devPrivates, shadowScrPrivateKey))
  76 #define shadowBuf(pScr)            shadowBufPtr pBuf = shadowGetBuf(pScr)
  77 #define shadowDamage(pBuf)  DamageRegion(pBuf->pDamage)
  78
  79 extern _X_EXPORT Bool
  80  shadowSetup(ScreenPtr pScreen);
  81
  82 extern _X_EXPORT Bool
  83
  84 shadowAdd(ScreenPtr pScreen,
  85           PixmapPtr pPixmap,
  86           ShadowUpdateProc update,
  87           ShadowWindowProc window, int randr, void *closure);
  88
  89 extern _X_EXPORT void
  90  shadowRemove(ScreenPtr pScreen, PixmapPtr pPixmap);
  91
  92 extern _X_EXPORT Bool
  93
  94 shadowInit(ScreenPtr pScreen, ShadowUpdateProc update, ShadowWindowProc window);
  95
  96 extern _X_EXPORT void *shadowAlloc(int width, int height, int bpp);
  97
  98 extern _X_EXPORT void
  99  shadowUpdateAfb4(ScreenPtr pScreen, shadowBufPtr pBuf);
 100
 101 extern _X_EXPORT void
 102  shadowUpdateAfb8(ScreenPtr pScreen, shadowBufPtr pBuf);
 103
 104 extern _X_EXPORT void
 105  shadowUpdateIplan2p4(ScreenPtr pScreen, shadowBufPtr pBuf);
 106
 107 extern _X_EXPORT void
 108  shadowUpdateIplan2p8(ScreenPtr pScreen, shadowBufPtr pBuf);
 109
 110 extern _X_EXPORT void
 111  shadowUpdatePacked(ScreenPtr pScreen, shadowBufPtr pBuf);
 112
 113 extern _X_EXPORT void
 114  shadowUpdatePlanar4(ScreenPtr pScreen, shadowBufPtr pBuf);
 115
 116 extern _X_EXPORT void
 117  shadowUpdatePlanar4x8(ScreenPtr pScreen, shadowBufPtr pBuf);
 118
 119 extern _X_EXPORT void
 120  shadowUpdateRotatePacked(ScreenPtr pScreen, shadowBufPtr pBuf);
 121
 122 extern _X_EXPORT void
 123  shadowUpdateRotate8_90(ScreenPtr pScreen, shadowBufPtr pBuf);
 124
 125 extern _X_EXPORT void
 126  shadowUpdateRotate16_90(ScreenPtr pScreen, shadowBufPtr pBuf);
 127
 128 extern _X_EXPORT void
 129  shadowUpdateRotate16_90YX(ScreenPtr pScreen, shadowBufPtr pBuf);
 130
 131 extern _X_EXPORT void
 132  shadowUpdateRotate32_90(ScreenPtr pScreen, shadowBufPtr pBuf);
 133
 134 extern _X_EXPORT void
 135  shadowUpdateRotate8_180(ScreenPtr pScreen, shadowBufPtr pBuf);
 136
 137 extern _X_EXPORT void
 138  shadowUpdateRotate16_180(ScreenPtr pScreen, shadowBufPtr pBuf);
 139
 140 extern _X_EXPORT void
 141  shadowUpdateRotate32_180(ScreenPtr pScreen, shadowBufPtr pBuf);
 142
 143 extern _X_EXPORT void
 144  shadowUpdateRotate8_270(ScreenPtr pScreen, shadowBufPtr pBuf);
 145
 146 extern _X_EXPORT void
 147  shadowUpdateRotate16_270(ScreenPtr pScreen, shadowBufPtr pBuf);
 148
 149 extern _X_EXPORT void
 150  shadowUpdateRotate16_270YX(ScreenPtr pScreen, shadowBufPtr pBuf);
 151
 152 extern _X_EXPORT void
 153  shadowUpdateRotate32_270(ScreenPtr pScreen, shadowBufPtr pBuf);
 154
 155 extern _X_EXPORT void
 156  shadowUpdateRotate8(ScreenPtr pScreen, shadowBufPtr pBuf);
 157
 158 extern _X_EXPORT void
 159  shadowUpdateRotate16(ScreenPtr pScreen, shadowBufPtr pBuf);
 160
 161 extern _X_EXPORT void
 162  shadowUpdateRotate32(ScreenPtr pScreen, shadowBufPtr pBuf);
 163
 164 typedef void (*shadowUpdateProc) (ScreenPtr, shadowBufPtr);
 165
 166 extern _X_EXPORT shadowUpdateProc shadowUpdatePackedWeak(void);
 167 extern _X_EXPORT shadowUpdateProc shadowUpdatePlanar4Weak(void);
 168 extern _X_EXPORT shadowUpdateProc shadowUpdatePlanar4x8Weak(void);
 169 extern _X_EXPORT shadowUpdateProc shadowUpdateRotatePackedWeak(void);
 170
 171 #endif                          /* _SHADOW_H_ */