cf4793d99e
Here's a trip down memory lane. Back when we merged kdrive we adopted
kdrive's version of shadow, which used damage directly instead of
hand-rolling it. However a couple of Xorg drivers referred to the
accumulated damage region in the shadow private directly, so I added a
hack to copy the damage region around.
That was 9148d8700b, back in early 2006.
Eight years is unusually patient for me. The neomagic and trident drivers
were still relying on this, but they've been modified to ask the damage
code for the region instead.
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
170 lines
5.3 KiB
C
170 lines
5.3 KiB
C
/*
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*
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* Copyright © 2000 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Keith Packard not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Keith Packard makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _SHADOW_H_
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#define _SHADOW_H_
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#include "scrnintstr.h"
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#include "picturestr.h"
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#include "damage.h"
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#include "damagestr.h"
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typedef struct _shadowBuf *shadowBufPtr;
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typedef void (*ShadowUpdateProc) (ScreenPtr pScreen, shadowBufPtr pBuf);
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#define SHADOW_WINDOW_RELOCATE 1
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#define SHADOW_WINDOW_READ 2
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#define SHADOW_WINDOW_WRITE 4
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typedef void *(*ShadowWindowProc) (ScreenPtr pScreen,
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CARD32 row,
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CARD32 offset,
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int mode, CARD32 *size, void *closure);
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typedef struct _shadowBuf {
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DamagePtr pDamage;
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ShadowUpdateProc update;
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ShadowWindowProc window;
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PixmapPtr pPixmap;
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void *closure;
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int randr;
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/* screen wrappers */
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GetImageProcPtr GetImage;
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CloseScreenProcPtr CloseScreen;
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} shadowBufRec;
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/* Match defines from randr extension */
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#define SHADOW_ROTATE_0 1
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#define SHADOW_ROTATE_90 2
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#define SHADOW_ROTATE_180 4
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#define SHADOW_ROTATE_270 8
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#define SHADOW_ROTATE_ALL (SHADOW_ROTATE_0|SHADOW_ROTATE_90|\
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SHADOW_ROTATE_180|SHADOW_ROTATE_270)
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#define SHADOW_REFLECT_X 16
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#define SHADOW_REFLECT_Y 32
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#define SHADOW_REFLECT_ALL (SHADOW_REFLECT_X|SHADOW_REFLECT_Y)
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extern _X_EXPORT DevPrivateKey shadowScrPrivateKey;
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#define shadowGetBuf(pScr) ((shadowBufPtr) \
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dixLookupPrivate(&(pScr)->devPrivates, shadowScrPrivateKey))
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#define shadowBuf(pScr) shadowBufPtr pBuf = shadowGetBuf(pScr)
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#define shadowDamage(pBuf) DamageRegion(pBuf->pDamage)
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extern _X_EXPORT Bool
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shadowSetup(ScreenPtr pScreen);
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extern _X_EXPORT Bool
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shadowAdd(ScreenPtr pScreen,
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PixmapPtr pPixmap,
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ShadowUpdateProc update,
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ShadowWindowProc window, int randr, void *closure);
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extern _X_EXPORT void
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shadowRemove(ScreenPtr pScreen, PixmapPtr pPixmap);
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extern _X_EXPORT Bool
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shadowInit(ScreenPtr pScreen, ShadowUpdateProc update, ShadowWindowProc window);
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extern _X_EXPORT void *shadowAlloc(int width, int height, int bpp);
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extern _X_EXPORT void
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shadowUpdateAfb4(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdateAfb8(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdateIplan2p4(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdateIplan2p8(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdatePacked(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdatePlanar4(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdatePlanar4x8(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdateRotatePacked(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdateRotate8_90(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdateRotate16_90(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdateRotate16_90YX(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdateRotate32_90(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdateRotate8_180(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdateRotate16_180(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdateRotate32_180(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdateRotate8_270(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdateRotate16_270(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdateRotate16_270YX(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdateRotate32_270(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdateRotate8(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdateRotate16(ScreenPtr pScreen, shadowBufPtr pBuf);
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extern _X_EXPORT void
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shadowUpdateRotate32(ScreenPtr pScreen, shadowBufPtr pBuf);
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typedef void (*shadowUpdateProc) (ScreenPtr, shadowBufPtr);
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extern _X_EXPORT shadowUpdateProc shadowUpdatePackedWeak(void);
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extern _X_EXPORT shadowUpdateProc shadowUpdatePlanar4Weak(void);
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extern _X_EXPORT shadowUpdateProc shadowUpdatePlanar4x8Weak(void);
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extern _X_EXPORT shadowUpdateProc shadowUpdateRotatePackedWeak(void);
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#endif /* _SHADOW_H_ */
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