1077 lines
30 KiB
C
1077 lines
30 KiB
C
/*
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* Copyright © 2001 Keith Packard
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*
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* Partly based on code that is Copyright © The XFree86 Project Inc.
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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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/** @file
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* This file covers the initialization and teardown of EXA, and has various
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* functions not responsible for performing rendering, pixmap migration, or
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* memory management.
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <stdlib.h>
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#include "exa_priv.h"
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#include "exa.h"
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static int exaScreenPrivateKeyIndex;
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DevPrivateKey exaScreenPrivateKey = &exaScreenPrivateKeyIndex;
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static int exaPixmapPrivateKeyIndex;
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DevPrivateKey exaPixmapPrivateKey = &exaPixmapPrivateKeyIndex;
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#ifdef MITSHM
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static ShmFuncs exaShmFuncs = { NULL, NULL };
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#endif
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static _X_INLINE void*
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ExaGetPixmapAddress(PixmapPtr p)
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{
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ExaPixmapPriv(p);
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if (pExaPixmap->offscreen && pExaPixmap->fb_ptr)
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return pExaPixmap->fb_ptr;
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else
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return pExaPixmap->sys_ptr;
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}
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/**
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* exaGetPixmapOffset() returns the offset (in bytes) within the framebuffer of
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* the beginning of the given pixmap.
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*
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* Note that drivers are free to, and often do, munge this offset as necessary
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* for handing to the hardware -- for example, translating it into a different
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* aperture. This function may need to be extended in the future if we grow
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* support for having multiple card-accessible offscreen, such as an AGP memory
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* pool alongside the framebuffer pool.
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*/
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unsigned long
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exaGetPixmapOffset(PixmapPtr pPix)
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{
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ExaScreenPriv (pPix->drawable.pScreen);
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return ((unsigned long)ExaGetPixmapAddress(pPix) -
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(unsigned long)pExaScr->info->memoryBase);
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}
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void *
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exaGetPixmapDriverPrivate(PixmapPtr pPix)
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{
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ExaPixmapPriv(pPix);
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return pExaPixmap->driverPriv;
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}
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/**
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* exaGetPixmapPitch() returns the pitch (in bytes) of the given pixmap.
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*
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* This is a helper to make driver code more obvious, due to the rather obscure
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* naming of the pitch field in the pixmap.
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*/
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unsigned long
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exaGetPixmapPitch(PixmapPtr pPix)
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{
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return pPix->devKind;
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}
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/**
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* exaGetPixmapSize() returns the size in bytes of the given pixmap in video
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* memory. Only valid when the pixmap is currently in framebuffer.
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*/
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unsigned long
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exaGetPixmapSize(PixmapPtr pPix)
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{
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ExaPixmapPrivPtr pExaPixmap;
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pExaPixmap = ExaGetPixmapPriv(pPix);
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if (pExaPixmap != NULL)
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return pExaPixmap->fb_size;
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return 0;
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}
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/**
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* exaGetDrawablePixmap() returns a backing pixmap for a given drawable.
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*
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* @param pDrawable the drawable being requested.
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*
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* This function returns the backing pixmap for a drawable, whether it is a
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* redirected window, unredirected window, or already a pixmap. Note that
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* coordinate translation is needed when drawing to the backing pixmap of a
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* redirected window, and the translation coordinates are provided by calling
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* exaGetOffscreenPixmap() on the drawable.
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*/
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PixmapPtr
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exaGetDrawablePixmap(DrawablePtr pDrawable)
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{
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if (pDrawable->type == DRAWABLE_WINDOW)
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return pDrawable->pScreen->GetWindowPixmap ((WindowPtr) pDrawable);
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else
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return (PixmapPtr) pDrawable;
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}
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/**
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* Sets the offsets to add to coordinates to make them address the same bits in
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* the backing drawable. These coordinates are nonzero only for redirected
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* windows.
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*/
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void
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exaGetDrawableDeltas (DrawablePtr pDrawable, PixmapPtr pPixmap,
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int *xp, int *yp)
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{
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#ifdef COMPOSITE
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if (pDrawable->type == DRAWABLE_WINDOW) {
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*xp = -pPixmap->screen_x;
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*yp = -pPixmap->screen_y;
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return;
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}
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#endif
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*xp = 0;
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*yp = 0;
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}
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/**
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* exaPixmapDirty() marks a pixmap as dirty, allowing for
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* optimizations in pixmap migration when no changes have occurred.
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*/
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void
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exaPixmapDirty (PixmapPtr pPix, int x1, int y1, int x2, int y2)
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{
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ExaPixmapPriv(pPix);
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BoxRec box;
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RegionPtr pDamageReg;
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RegionRec region;
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if (!pExaPixmap || !pExaPixmap->pDamage)
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return;
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box.x1 = max(x1, 0);
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box.y1 = max(y1, 0);
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box.x2 = min(x2, pPix->drawable.width);
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box.y2 = min(y2, pPix->drawable.height);
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if (box.x1 >= box.x2 || box.y1 >= box.y2)
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return;
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pDamageReg = DamageRegion(pExaPixmap->pDamage);
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REGION_INIT(pScreen, ®ion, &box, 1);
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REGION_UNION(pScreen, pDamageReg, pDamageReg, ®ion);
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REGION_UNINIT(pScreen, ®ion);
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}
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static Bool
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exaDestroyPixmap (PixmapPtr pPixmap)
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{
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ScreenPtr pScreen = pPixmap->drawable.pScreen;
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ExaScreenPriv(pScreen);
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if (pPixmap->refcnt == 1)
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{
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ExaPixmapPriv (pPixmap);
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if (pExaPixmap->driverPriv) {
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pExaScr->info->DestroyPixmap(pScreen, pExaPixmap->driverPriv);
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pExaPixmap->driverPriv = NULL;
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}
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if (pExaPixmap->area)
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{
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DBG_PIXMAP(("-- 0x%p (0x%x) (%dx%d)\n",
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(void*)pPixmap->drawable.id,
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ExaGetPixmapPriv(pPixmap)->area->offset,
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pPixmap->drawable.width,
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pPixmap->drawable.height));
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/* Free the offscreen area */
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exaOffscreenFree (pPixmap->drawable.pScreen, pExaPixmap->area);
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pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;
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pPixmap->devKind = pExaPixmap->sys_pitch;
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}
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REGION_UNINIT(pPixmap->drawable.pScreen, &pExaPixmap->validSys);
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REGION_UNINIT(pPixmap->drawable.pScreen, &pExaPixmap->validFB);
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}
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return fbDestroyPixmap (pPixmap);
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}
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static int
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exaLog2(int val)
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{
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int bits;
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if (val <= 0)
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return 0;
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for (bits = 0; val != 0; bits++)
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val >>= 1;
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return bits - 1;
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}
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static void
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exaSetAccelBlock(ExaScreenPrivPtr pExaScr, ExaPixmapPrivPtr pExaPixmap,
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int w, int h, int bpp)
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{
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pExaPixmap->accel_blocked = 0;
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if (pExaScr->info->maxPitchPixels) {
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int max_pitch = pExaScr->info->maxPitchPixels * (bpp + 7) / 8;
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if (pExaPixmap->fb_pitch > max_pitch)
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pExaPixmap->accel_blocked |= EXA_RANGE_PITCH;
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}
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if (pExaScr->info->maxPitchBytes &&
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pExaPixmap->fb_pitch > pExaScr->info->maxPitchBytes)
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pExaPixmap->accel_blocked |= EXA_RANGE_PITCH;
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if (w > pExaScr->info->maxX)
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pExaPixmap->accel_blocked |= EXA_RANGE_WIDTH;
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if (h > pExaScr->info->maxY)
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pExaPixmap->accel_blocked |= EXA_RANGE_HEIGHT;
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}
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static void
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exaSetFbPitch(ExaScreenPrivPtr pExaScr, ExaPixmapPrivPtr pExaPixmap,
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int w, int h, int bpp)
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{
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if (pExaScr->info->flags & EXA_OFFSCREEN_ALIGN_POT && w != 1)
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pExaPixmap->fb_pitch = (1 << (exaLog2(w - 1) + 1)) * bpp / 8;
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else
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pExaPixmap->fb_pitch = w * bpp / 8;
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pExaPixmap->fb_pitch = EXA_ALIGN(pExaPixmap->fb_pitch,
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pExaScr->info->pixmapPitchAlign);
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}
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/**
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* exaCreatePixmap() creates a new pixmap.
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*
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* If width and height are 0, this won't be a full-fledged pixmap and it will
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* get ModifyPixmapHeader() called on it later. So, we mark it as pinned, because
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* ModifyPixmapHeader() would break migration. These types of pixmaps are used
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* for scratch pixmaps, or to represent the visible screen.
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*/
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static PixmapPtr
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exaCreatePixmap(ScreenPtr pScreen, int w, int h, int depth,
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unsigned usage_hint)
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{
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PixmapPtr pPixmap;
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ExaPixmapPrivPtr pExaPixmap;
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int driver_alloc = 0;
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int bpp;
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ExaScreenPriv(pScreen);
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if (w > 32767 || h > 32767)
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return NullPixmap;
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if (!pExaScr->info->CreatePixmap) {
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pPixmap = fbCreatePixmap (pScreen, w, h, depth, usage_hint);
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} else {
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driver_alloc = 1;
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pPixmap = fbCreatePixmap(pScreen, 0, 0, depth, usage_hint);
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}
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if (!pPixmap)
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return NULL;
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pExaPixmap = ExaGetPixmapPriv(pPixmap);
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pExaPixmap->driverPriv = NULL;
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bpp = pPixmap->drawable.bitsPerPixel;
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if (driver_alloc) {
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size_t paddedWidth, datasize;
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paddedWidth = ((w * bpp + FB_MASK) >> FB_SHIFT) * sizeof(FbBits);
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if (paddedWidth / 4 > 32767 || h > 32767)
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return NullPixmap;
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exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp);
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if (paddedWidth < pExaPixmap->fb_pitch)
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paddedWidth = pExaPixmap->fb_pitch;
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datasize = h * paddedWidth;
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/* Set this before driver hooks, to allow for !offscreen pixmaps.
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* !offscreen pixmaps have a valid pointer at all times.
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*/
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pPixmap->devPrivate.ptr = NULL;
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pExaPixmap->driverPriv = pExaScr->info->CreatePixmap(pScreen, datasize, 0);
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if (!pExaPixmap->driverPriv) {
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fbDestroyPixmap(pPixmap);
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return NULL;
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}
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(*pScreen->ModifyPixmapHeader)(pPixmap, w, h, 0, 0,
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paddedWidth, NULL);
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pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED;
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pExaPixmap->fb_ptr = NULL;
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pExaPixmap->pDamage = NULL;
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pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr;
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} else {
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pExaPixmap->driverPriv = NULL;
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/* Scratch pixmaps may have w/h equal to zero, and may not be
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* migrated.
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*/
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if (!w || !h)
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pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED;
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else
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pExaPixmap->score = EXA_PIXMAP_SCORE_INIT;
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pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr;
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pExaPixmap->sys_pitch = pPixmap->devKind;
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pPixmap->devPrivate.ptr = NULL;
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pExaPixmap->offscreen = FALSE;
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pExaPixmap->fb_ptr = NULL;
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exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp);
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pExaPixmap->fb_size = pExaPixmap->fb_pitch * h;
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if (pExaPixmap->fb_pitch > 131071) {
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fbDestroyPixmap(pPixmap);
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return NULL;
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}
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/* Set up damage tracking */
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pExaPixmap->pDamage = DamageCreate (NULL, NULL,
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DamageReportNone, TRUE,
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pScreen, pPixmap);
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if (pExaPixmap->pDamage == NULL) {
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fbDestroyPixmap (pPixmap);
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return NULL;
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}
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DamageRegister (&pPixmap->drawable, pExaPixmap->pDamage);
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/* This ensures that pending damage reflects the current operation. */
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/* This is used by exa to optimize migration. */
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DamageSetReportAfterOp (pExaPixmap->pDamage, TRUE);
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}
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pExaPixmap->area = NULL;
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/* None of the pixmap bits are valid initially */
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REGION_NULL(pScreen, &pExaPixmap->validSys);
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REGION_NULL(pScreen, &pExaPixmap->validFB);
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exaSetAccelBlock(pExaScr, pExaPixmap,
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w, h, bpp);
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return pPixmap;
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}
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static Bool
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exaModifyPixmapHeader(PixmapPtr pPixmap, int width, int height, int depth,
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int bitsPerPixel, int devKind, pointer pPixData)
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{
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ExaScreenPrivPtr pExaScr;
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ExaPixmapPrivPtr pExaPixmap;
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Bool ret;
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if (!pPixmap)
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return FALSE;
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pExaScr = ExaGetScreenPriv(pPixmap->drawable.pScreen);
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pExaPixmap = ExaGetPixmapPriv(pPixmap);
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if (pExaPixmap) {
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if (pPixData)
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pExaPixmap->sys_ptr = pPixData;
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if (devKind > 0)
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pExaPixmap->sys_pitch = devKind;
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if (width > 0 && height > 0 && bitsPerPixel > 0) {
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exaSetFbPitch(pExaScr, pExaPixmap,
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width, height, bitsPerPixel);
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exaSetAccelBlock(pExaScr, pExaPixmap,
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width, height, bitsPerPixel);
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}
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}
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if (pExaScr->info->ModifyPixmapHeader) {
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ret = pExaScr->info->ModifyPixmapHeader(pPixmap, width, height, depth,
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bitsPerPixel, devKind, pPixData);
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if (ret == TRUE)
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return ret;
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}
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return pExaScr->SavedModifyPixmapHeader(pPixmap, width, height, depth,
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bitsPerPixel, devKind, pPixData);
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}
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/**
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* exaPixmapIsOffscreen() is used to determine if a pixmap is in offscreen
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* memory, meaning that acceleration could probably be done to it, and that it
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* will need to be wrapped by PrepareAccess()/FinishAccess() when accessing it
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* with the CPU.
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*
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* Note that except for UploadToScreen()/DownloadFromScreen() (which explicitly
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* deal with moving pixmaps in and out of system memory), EXA will give drivers
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* pixmaps as arguments for which exaPixmapIsOffscreen() is TRUE.
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*
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* @return TRUE if the given drawable is in framebuffer memory.
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*/
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Bool
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exaPixmapIsOffscreen(PixmapPtr p)
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{
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ScreenPtr pScreen = p->drawable.pScreen;
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ExaScreenPriv(pScreen);
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ExaPixmapPriv(p);
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void *save_ptr;
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Bool ret;
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save_ptr = p->devPrivate.ptr;
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if (!save_ptr && pExaPixmap && !(pExaScr->info->flags & EXA_HANDLES_PIXMAPS))
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p->devPrivate.ptr = ExaGetPixmapAddress(p);
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if (pExaScr->info->PixmapIsOffscreen)
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ret = pExaScr->info->PixmapIsOffscreen(p);
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else
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ret = ((unsigned long) ((CARD8 *) p->devPrivate.ptr -
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(CARD8 *) pExaScr->info->memoryBase) <
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pExaScr->info->memorySize);
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p->devPrivate.ptr = save_ptr;
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return ret;
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}
|
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/**
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* exaDrawableIsOffscreen() is a convenience wrapper for exaPixmapIsOffscreen().
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*/
|
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Bool
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exaDrawableIsOffscreen (DrawablePtr pDrawable)
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{
|
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return exaPixmapIsOffscreen (exaGetDrawablePixmap (pDrawable));
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}
|
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|
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/**
|
|
* Returns the pixmap which backs a drawable, and the offsets to add to
|
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* coordinates to make them address the same bits in the backing drawable.
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*/
|
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PixmapPtr
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exaGetOffscreenPixmap (DrawablePtr pDrawable, int *xp, int *yp)
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{
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PixmapPtr pPixmap = exaGetDrawablePixmap (pDrawable);
|
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exaGetDrawableDeltas (pDrawable, pPixmap, xp, yp);
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if (exaPixmapIsOffscreen (pPixmap))
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return pPixmap;
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else
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return NULL;
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}
|
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|
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void
|
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ExaDoPrepareAccess(DrawablePtr pDrawable, int index)
|
|
{
|
|
ScreenPtr pScreen = pDrawable->pScreen;
|
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ExaScreenPriv (pScreen);
|
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PixmapPtr pPixmap = exaGetDrawablePixmap (pDrawable);
|
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Bool offscreen = exaPixmapIsOffscreen(pPixmap);
|
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|
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/* Unhide pixmap pointer */
|
|
if (pPixmap->devPrivate.ptr == NULL && !(pExaScr->info->flags & EXA_HANDLES_PIXMAPS)) {
|
|
pPixmap->devPrivate.ptr = ExaGetPixmapAddress(pPixmap);
|
|
}
|
|
|
|
if (!offscreen)
|
|
return;
|
|
|
|
exaWaitSync (pDrawable->pScreen);
|
|
|
|
if (pExaScr->info->PrepareAccess == NULL)
|
|
return;
|
|
|
|
if (index >= EXA_PREPARE_AUX0 &&
|
|
!(pExaScr->info->flags & EXA_SUPPORTS_PREPARE_AUX)) {
|
|
exaMoveOutPixmap (pPixmap);
|
|
return;
|
|
}
|
|
|
|
if (!(*pExaScr->info->PrepareAccess) (pPixmap, index)) {
|
|
ExaPixmapPriv (pPixmap);
|
|
if (pExaPixmap->score == EXA_PIXMAP_SCORE_PINNED)
|
|
FatalError("Driver failed PrepareAccess on a pinned pixmap\n");
|
|
exaMoveOutPixmap (pPixmap);
|
|
}
|
|
}
|
|
|
|
void
|
|
exaPrepareAccessReg(DrawablePtr pDrawable, int index, RegionPtr pReg)
|
|
{
|
|
ExaMigrationRec pixmaps[1];
|
|
|
|
pixmaps[0].as_dst = index == EXA_PREPARE_DEST;
|
|
pixmaps[0].as_src = index != EXA_PREPARE_DEST;
|
|
pixmaps[0].pPix = exaGetDrawablePixmap (pDrawable);
|
|
pixmaps[0].pReg = pReg;
|
|
|
|
exaDoMigration(pixmaps, 1, FALSE);
|
|
|
|
ExaDoPrepareAccess(pDrawable, index);
|
|
}
|
|
|
|
/**
|
|
* exaPrepareAccess() is EXA's wrapper for the driver's PrepareAccess() handler.
|
|
*
|
|
* It deals with waiting for synchronization with the card, determining if
|
|
* PrepareAccess() is necessary, and working around PrepareAccess() failure.
|
|
*/
|
|
void
|
|
exaPrepareAccess(DrawablePtr pDrawable, int index)
|
|
{
|
|
exaPrepareAccessReg(pDrawable, index, NULL);
|
|
}
|
|
|
|
/**
|
|
* exaFinishAccess() is EXA's wrapper for the driver's FinishAccess() handler.
|
|
*
|
|
* It deals with calling the driver's FinishAccess() only if necessary.
|
|
*/
|
|
void
|
|
exaFinishAccess(DrawablePtr pDrawable, int index)
|
|
{
|
|
ScreenPtr pScreen = pDrawable->pScreen;
|
|
ExaScreenPriv (pScreen);
|
|
PixmapPtr pPixmap = exaGetDrawablePixmap (pDrawable);
|
|
ExaPixmapPriv (pPixmap);
|
|
|
|
/* Rehide pixmap pointer if we're doing that. */
|
|
if (pExaPixmap && !(pExaScr->info->flags & EXA_HANDLES_PIXMAPS)) {
|
|
pPixmap->devPrivate.ptr = NULL;
|
|
}
|
|
|
|
if (pExaScr->info->FinishAccess == NULL)
|
|
return;
|
|
|
|
if (!exaPixmapIsOffscreen (pPixmap))
|
|
return;
|
|
|
|
if (index >= EXA_PREPARE_AUX0 &&
|
|
!(pExaScr->info->flags & EXA_SUPPORTS_PREPARE_AUX)) {
|
|
ErrorF("EXA bug: Trying to call driver FinishAccess hook with "
|
|
"unsupported index EXA_PREPARE_AUX*\n");
|
|
return;
|
|
}
|
|
|
|
(*pExaScr->info->FinishAccess) (pPixmap, index);
|
|
}
|
|
|
|
/**
|
|
* exaValidateGC() sets the ops to EXA's implementations, which may be
|
|
* accelerated or may sync the card and fall back to fb.
|
|
*/
|
|
static void
|
|
exaValidateGC (GCPtr pGC, unsigned long changes, DrawablePtr pDrawable)
|
|
{
|
|
/* fbValidateGC will do direct access to pixmaps if the tiling has changed.
|
|
* Preempt fbValidateGC by doing its work and masking the change out, so
|
|
* that we can do the Prepare/FinishAccess.
|
|
*/
|
|
#ifdef FB_24_32BIT
|
|
if ((changes & GCTile) && fbGetRotatedPixmap(pGC)) {
|
|
(*pGC->pScreen->DestroyPixmap) (fbGetRotatedPixmap(pGC));
|
|
fbGetRotatedPixmap(pGC) = 0;
|
|
}
|
|
|
|
if (pGC->fillStyle == FillTiled) {
|
|
PixmapPtr pOldTile, pNewTile;
|
|
|
|
pOldTile = pGC->tile.pixmap;
|
|
if (pOldTile->drawable.bitsPerPixel != pDrawable->bitsPerPixel)
|
|
{
|
|
pNewTile = fbGetRotatedPixmap(pGC);
|
|
if (!pNewTile ||
|
|
pNewTile ->drawable.bitsPerPixel != pDrawable->bitsPerPixel)
|
|
{
|
|
if (pNewTile)
|
|
(*pGC->pScreen->DestroyPixmap) (pNewTile);
|
|
/* fb24_32ReformatTile will do direct access of a newly-
|
|
* allocated pixmap. This isn't a problem yet, since we don't
|
|
* put pixmaps in FB until at least one accelerated EXA op.
|
|
*/
|
|
exaPrepareAccess(&pOldTile->drawable, EXA_PREPARE_SRC);
|
|
pNewTile = fb24_32ReformatTile (pOldTile,
|
|
pDrawable->bitsPerPixel);
|
|
exaPixmapDirty(pNewTile, 0, 0, pNewTile->drawable.width, pNewTile->drawable.height);
|
|
exaFinishAccess(&pOldTile->drawable, EXA_PREPARE_SRC);
|
|
}
|
|
if (pNewTile)
|
|
{
|
|
fbGetRotatedPixmap(pGC) = pOldTile;
|
|
pGC->tile.pixmap = pNewTile;
|
|
changes |= GCTile;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
if (changes & GCTile) {
|
|
if (!pGC->tileIsPixel && FbEvenTile (pGC->tile.pixmap->drawable.width *
|
|
pDrawable->bitsPerPixel))
|
|
{
|
|
exaPrepareAccess(&pGC->tile.pixmap->drawable, EXA_PREPARE_SRC);
|
|
fbPadPixmap (pGC->tile.pixmap);
|
|
exaFinishAccess(&pGC->tile.pixmap->drawable, EXA_PREPARE_SRC);
|
|
exaPixmapDirty(pGC->tile.pixmap, 0, 0,
|
|
pGC->tile.pixmap->drawable.width,
|
|
pGC->tile.pixmap->drawable.height);
|
|
}
|
|
/* Mask out the GCTile change notification, now that we've done FB's
|
|
* job for it.
|
|
*/
|
|
changes &= ~GCTile;
|
|
}
|
|
|
|
exaPrepareAccessGC(pGC);
|
|
fbValidateGC (pGC, changes, pDrawable);
|
|
exaFinishAccessGC(pGC);
|
|
|
|
pGC->ops = (GCOps *) &exaOps;
|
|
}
|
|
|
|
static GCFuncs exaGCFuncs = {
|
|
exaValidateGC,
|
|
miChangeGC,
|
|
miCopyGC,
|
|
miDestroyGC,
|
|
miChangeClip,
|
|
miDestroyClip,
|
|
miCopyClip
|
|
};
|
|
|
|
/**
|
|
* exaCreateGC makes a new GC and hooks up its funcs handler, so that
|
|
* exaValidateGC() will get called.
|
|
*/
|
|
static int
|
|
exaCreateGC (GCPtr pGC)
|
|
{
|
|
if (!fbCreateGC (pGC))
|
|
return FALSE;
|
|
|
|
pGC->funcs = &exaGCFuncs;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static Bool
|
|
exaChangeWindowAttributes(WindowPtr pWin, unsigned long mask)
|
|
{
|
|
Bool ret;
|
|
|
|
if ((mask & CWBackPixmap) && pWin->backgroundState == BackgroundPixmap)
|
|
exaPrepareAccess(&pWin->background.pixmap->drawable, EXA_PREPARE_SRC);
|
|
|
|
if ((mask & CWBorderPixmap) && pWin->borderIsPixel == FALSE)
|
|
exaPrepareAccess(&pWin->border.pixmap->drawable, EXA_PREPARE_MASK);
|
|
|
|
ret = fbChangeWindowAttributes(pWin, mask);
|
|
|
|
if ((mask & CWBorderPixmap) && pWin->borderIsPixel == FALSE)
|
|
exaFinishAccess(&pWin->border.pixmap->drawable, EXA_PREPARE_MASK);
|
|
|
|
if ((mask & CWBackPixmap) && pWin->backgroundState == BackgroundPixmap)
|
|
exaFinishAccess(&pWin->background.pixmap->drawable, EXA_PREPARE_SRC);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static RegionPtr
|
|
exaBitmapToRegion(PixmapPtr pPix)
|
|
{
|
|
RegionPtr ret;
|
|
exaPrepareAccess(&pPix->drawable, EXA_PREPARE_SRC);
|
|
ret = fbPixmapToRegion(pPix);
|
|
exaFinishAccess(&pPix->drawable, EXA_PREPARE_SRC);
|
|
return ret;
|
|
}
|
|
|
|
static Bool
|
|
exaCreateScreenResources(ScreenPtr pScreen)
|
|
{
|
|
ExaScreenPriv(pScreen);
|
|
PixmapPtr pScreenPixmap;
|
|
Bool b;
|
|
|
|
pScreen->CreateScreenResources = pExaScr->SavedCreateScreenResources;
|
|
b = pScreen->CreateScreenResources(pScreen);
|
|
pScreen->CreateScreenResources = exaCreateScreenResources;
|
|
|
|
if (!b)
|
|
return FALSE;
|
|
|
|
pScreenPixmap = pScreen->GetScreenPixmap(pScreen);
|
|
|
|
if (pScreenPixmap) {
|
|
ExaPixmapPriv(pScreenPixmap);
|
|
|
|
exaSetAccelBlock(pExaScr, pExaPixmap,
|
|
pScreenPixmap->drawable.width,
|
|
pScreenPixmap->drawable.height,
|
|
pScreenPixmap->drawable.bitsPerPixel);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* exaCloseScreen() unwraps its wrapped screen functions and tears down EXA's
|
|
* screen private, before calling down to the next CloseSccreen.
|
|
*/
|
|
static Bool
|
|
exaCloseScreen(int i, ScreenPtr pScreen)
|
|
{
|
|
ExaScreenPriv(pScreen);
|
|
#ifdef RENDER
|
|
PictureScreenPtr ps = GetPictureScreenIfSet(pScreen);
|
|
#endif
|
|
|
|
if (ps->Glyphs == exaGlyphs)
|
|
exaGlyphsFini(pScreen);
|
|
|
|
pScreen->CreateGC = pExaScr->SavedCreateGC;
|
|
pScreen->CloseScreen = pExaScr->SavedCloseScreen;
|
|
pScreen->GetImage = pExaScr->SavedGetImage;
|
|
pScreen->GetSpans = pExaScr->SavedGetSpans;
|
|
pScreen->CreatePixmap = pExaScr->SavedCreatePixmap;
|
|
pScreen->DestroyPixmap = pExaScr->SavedDestroyPixmap;
|
|
pScreen->CopyWindow = pExaScr->SavedCopyWindow;
|
|
pScreen->ChangeWindowAttributes = pExaScr->SavedChangeWindowAttributes;
|
|
pScreen->BitmapToRegion = pExaScr->SavedBitmapToRegion;
|
|
pScreen->CreateScreenResources = pExaScr->SavedCreateScreenResources;
|
|
#ifdef RENDER
|
|
if (ps) {
|
|
ps->Composite = pExaScr->SavedComposite;
|
|
ps->Glyphs = pExaScr->SavedGlyphs;
|
|
ps->Trapezoids = pExaScr->SavedTrapezoids;
|
|
ps->Triangles = pExaScr->SavedTriangles;
|
|
ps->AddTraps = pExaScr->SavedAddTraps;
|
|
}
|
|
#endif
|
|
|
|
xfree (pExaScr);
|
|
|
|
return (*pScreen->CloseScreen) (i, pScreen);
|
|
}
|
|
|
|
/**
|
|
* This function allocates a driver structure for EXA drivers to fill in. By
|
|
* having EXA allocate the structure, the driver structure can be extended
|
|
* without breaking ABI between EXA and the drivers. The driver's
|
|
* responsibility is to check beforehand that the EXA module has a matching
|
|
* major number and sufficient minor. Drivers are responsible for freeing the
|
|
* driver structure using xfree().
|
|
*
|
|
* @return a newly allocated, zero-filled driver structure
|
|
*/
|
|
ExaDriverPtr
|
|
exaDriverAlloc(void)
|
|
{
|
|
return xcalloc(1, sizeof(ExaDriverRec));
|
|
}
|
|
|
|
/**
|
|
* @param pScreen screen being initialized
|
|
* @param pScreenInfo EXA driver record
|
|
*
|
|
* exaDriverInit sets up EXA given a driver record filled in by the driver.
|
|
* pScreenInfo should have been allocated by exaDriverAlloc(). See the
|
|
* comments in _ExaDriver for what must be filled in and what is optional.
|
|
*
|
|
* @return TRUE if EXA was successfully initialized.
|
|
*/
|
|
Bool
|
|
exaDriverInit (ScreenPtr pScreen,
|
|
ExaDriverPtr pScreenInfo)
|
|
{
|
|
ExaScreenPrivPtr pExaScr;
|
|
#ifdef RENDER
|
|
PictureScreenPtr ps;
|
|
#endif
|
|
|
|
if (!pScreenInfo)
|
|
return FALSE;
|
|
|
|
if (pScreenInfo->exa_major != EXA_VERSION_MAJOR ||
|
|
pScreenInfo->exa_minor > EXA_VERSION_MINOR)
|
|
{
|
|
LogMessage(X_ERROR, "EXA(%d): driver's EXA version requirements "
|
|
"(%d.%d) are incompatible with EXA version (%d.%d)\n",
|
|
pScreen->myNum,
|
|
pScreenInfo->exa_major, pScreenInfo->exa_minor,
|
|
EXA_VERSION_MAJOR, EXA_VERSION_MINOR);
|
|
return FALSE;
|
|
}
|
|
|
|
if (!pScreenInfo->CreatePixmap) {
|
|
if (!pScreenInfo->memoryBase) {
|
|
LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::memoryBase "
|
|
"must be non-zero\n", pScreen->myNum);
|
|
return FALSE;
|
|
}
|
|
|
|
if (!pScreenInfo->memorySize) {
|
|
LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::memorySize must be "
|
|
"non-zero\n", pScreen->myNum);
|
|
return FALSE;
|
|
}
|
|
|
|
if (pScreenInfo->offScreenBase > pScreenInfo->memorySize) {
|
|
LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::offScreenBase must "
|
|
"be <= ExaDriverRec::memorySize\n", pScreen->myNum);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
if (!pScreenInfo->PrepareSolid) {
|
|
LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::PrepareSolid must be "
|
|
"non-NULL\n", pScreen->myNum);
|
|
return FALSE;
|
|
}
|
|
|
|
if (!pScreenInfo->PrepareCopy) {
|
|
LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::PrepareCopy must be "
|
|
"non-NULL\n", pScreen->myNum);
|
|
return FALSE;
|
|
}
|
|
|
|
if (!pScreenInfo->WaitMarker) {
|
|
LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::WaitMarker must be "
|
|
"non-NULL\n", pScreen->myNum);
|
|
return FALSE;
|
|
}
|
|
|
|
/* If the driver doesn't set any max pitch values, we'll just assume
|
|
* that there's a limitation by pixels, and that it's the same as
|
|
* maxX.
|
|
*
|
|
* We want maxPitchPixels or maxPitchBytes to be set so we can check
|
|
* pixmaps against the max pitch in exaCreatePixmap() -- it matters
|
|
* whether a pixmap is rejected because of its pitch or
|
|
* because of its width.
|
|
*/
|
|
if (!pScreenInfo->maxPitchPixels && !pScreenInfo->maxPitchBytes)
|
|
{
|
|
pScreenInfo->maxPitchPixels = pScreenInfo->maxX;
|
|
}
|
|
|
|
#ifdef RENDER
|
|
ps = GetPictureScreenIfSet(pScreen);
|
|
#endif
|
|
|
|
pExaScr = xcalloc (sizeof (ExaScreenPrivRec), 1);
|
|
|
|
if (!pExaScr) {
|
|
LogMessage(X_WARNING, "EXA(%d): Failed to allocate screen private\n",
|
|
pScreen->myNum);
|
|
return FALSE;
|
|
}
|
|
|
|
pExaScr->info = pScreenInfo;
|
|
|
|
dixSetPrivate(&pScreen->devPrivates, exaScreenPrivateKey, pExaScr);
|
|
|
|
pExaScr->migration = ExaMigrationAlways;
|
|
|
|
exaDDXDriverInit(pScreen);
|
|
|
|
/*
|
|
* Replace various fb screen functions
|
|
*/
|
|
pExaScr->SavedCloseScreen = pScreen->CloseScreen;
|
|
pScreen->CloseScreen = exaCloseScreen;
|
|
|
|
pExaScr->SavedCreateGC = pScreen->CreateGC;
|
|
pScreen->CreateGC = exaCreateGC;
|
|
|
|
pExaScr->SavedGetImage = pScreen->GetImage;
|
|
pScreen->GetImage = exaGetImage;
|
|
|
|
pExaScr->SavedGetSpans = pScreen->GetSpans;
|
|
pScreen->GetSpans = ExaCheckGetSpans;
|
|
|
|
pExaScr->SavedCopyWindow = pScreen->CopyWindow;
|
|
pScreen->CopyWindow = exaCopyWindow;
|
|
|
|
pExaScr->SavedChangeWindowAttributes = pScreen->ChangeWindowAttributes;
|
|
pScreen->ChangeWindowAttributes = exaChangeWindowAttributes;
|
|
|
|
pExaScr->SavedBitmapToRegion = pScreen->BitmapToRegion;
|
|
pScreen->BitmapToRegion = exaBitmapToRegion;
|
|
|
|
pExaScr->SavedCreateScreenResources = pScreen->CreateScreenResources;
|
|
pScreen->CreateScreenResources = exaCreateScreenResources;
|
|
|
|
#ifdef RENDER
|
|
if (ps) {
|
|
pExaScr->SavedComposite = ps->Composite;
|
|
ps->Composite = exaComposite;
|
|
|
|
if (pScreenInfo->PrepareComposite) {
|
|
pExaScr->SavedGlyphs = ps->Glyphs;
|
|
ps->Glyphs = exaGlyphs;
|
|
}
|
|
|
|
pExaScr->SavedTriangles = ps->Triangles;
|
|
ps->Triangles = exaTriangles;
|
|
|
|
pExaScr->SavedTrapezoids = ps->Trapezoids;
|
|
ps->Trapezoids = exaTrapezoids;
|
|
|
|
pExaScr->SavedAddTraps = ps->AddTraps;
|
|
ps->AddTraps = ExaCheckAddTraps;
|
|
}
|
|
#endif
|
|
|
|
#ifdef MITSHM
|
|
/*
|
|
* Don't allow shared pixmaps.
|
|
*/
|
|
ShmRegisterFuncs(pScreen, &exaShmFuncs);
|
|
#endif
|
|
/*
|
|
* Hookup offscreen pixmaps
|
|
*/
|
|
if (pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS)
|
|
{
|
|
if (!dixRequestPrivate(exaPixmapPrivateKey, sizeof(ExaPixmapPrivRec))) {
|
|
LogMessage(X_WARNING,
|
|
"EXA(%d): Failed to allocate pixmap private\n",
|
|
pScreen->myNum);
|
|
return FALSE;
|
|
}
|
|
pExaScr->SavedCreatePixmap = pScreen->CreatePixmap;
|
|
pScreen->CreatePixmap = exaCreatePixmap;
|
|
|
|
pExaScr->SavedDestroyPixmap = pScreen->DestroyPixmap;
|
|
pScreen->DestroyPixmap = exaDestroyPixmap;
|
|
|
|
pExaScr->SavedModifyPixmapHeader = pScreen->ModifyPixmapHeader;
|
|
pScreen->ModifyPixmapHeader = exaModifyPixmapHeader;
|
|
if (!pExaScr->info->CreatePixmap) {
|
|
LogMessage(X_INFO, "EXA(%d): Offscreen pixmap area of %lu bytes\n",
|
|
pScreen->myNum,
|
|
pExaScr->info->memorySize - pExaScr->info->offScreenBase);
|
|
} else {
|
|
LogMessage(X_INFO, "EXA(%d): Driver allocated offscreen pixmaps\n",
|
|
pScreen->myNum);
|
|
|
|
}
|
|
}
|
|
else
|
|
LogMessage(X_INFO, "EXA(%d): No offscreen pixmaps\n", pScreen->myNum);
|
|
|
|
if (!pExaScr->info->CreatePixmap) {
|
|
DBG_PIXMAP(("============== %ld < %ld\n", pExaScr->info->offScreenBase,
|
|
pExaScr->info->memorySize));
|
|
if (pExaScr->info->offScreenBase < pExaScr->info->memorySize) {
|
|
if (!exaOffscreenInit (pScreen)) {
|
|
LogMessage(X_WARNING, "EXA(%d): Offscreen pixmap setup failed\n",
|
|
pScreen->myNum);
|
|
return FALSE;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ps->Glyphs == exaGlyphs)
|
|
exaGlyphsInit(pScreen);
|
|
|
|
LogMessage(X_INFO, "EXA(%d): Driver registered support for the following"
|
|
" operations:\n", pScreen->myNum);
|
|
assert(pScreenInfo->PrepareSolid != NULL);
|
|
LogMessage(X_INFO, " Solid\n");
|
|
assert(pScreenInfo->PrepareCopy != NULL);
|
|
LogMessage(X_INFO, " Copy\n");
|
|
if (pScreenInfo->PrepareComposite != NULL) {
|
|
LogMessage(X_INFO, " Composite (RENDER acceleration)\n");
|
|
}
|
|
if (pScreenInfo->UploadToScreen != NULL) {
|
|
LogMessage(X_INFO, " UploadToScreen\n");
|
|
}
|
|
if (pScreenInfo->DownloadFromScreen != NULL) {
|
|
LogMessage(X_INFO, " DownloadFromScreen\n");
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* exaDriverFini tears down EXA on a given screen.
|
|
*
|
|
* @param pScreen screen being torn down.
|
|
*/
|
|
void
|
|
exaDriverFini (ScreenPtr pScreen)
|
|
{
|
|
/*right now does nothing*/
|
|
}
|
|
|
|
/**
|
|
* exaMarkSync() should be called after any asynchronous drawing by the hardware.
|
|
*
|
|
* @param pScreen screen which drawing occurred on
|
|
*
|
|
* exaMarkSync() sets a flag to indicate that some asynchronous drawing has
|
|
* happened and a WaitSync() will be necessary before relying on the contents of
|
|
* offscreen memory from the CPU's perspective. It also calls an optional
|
|
* driver MarkSync() callback, the return value of which may be used to do partial
|
|
* synchronization with the hardware in the future.
|
|
*/
|
|
void exaMarkSync(ScreenPtr pScreen)
|
|
{
|
|
ExaScreenPriv(pScreen);
|
|
|
|
pExaScr->info->needsSync = TRUE;
|
|
if (pExaScr->info->MarkSync != NULL) {
|
|
pExaScr->info->lastMarker = (*pExaScr->info->MarkSync)(pScreen);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* exaWaitSync() ensures that all drawing has been completed.
|
|
*
|
|
* @param pScreen screen being synchronized.
|
|
*
|
|
* Calls down into the driver to ensure that all previous drawing has completed.
|
|
* It should always be called before relying on the framebuffer contents
|
|
* reflecting previous drawing, from a CPU perspective.
|
|
*/
|
|
void exaWaitSync(ScreenPtr pScreen)
|
|
{
|
|
ExaScreenPriv(pScreen);
|
|
|
|
if (pExaScr->info->needsSync && !pExaScr->swappedOut) {
|
|
(*pExaScr->info->WaitMarker)(pScreen, pExaScr->info->lastMarker);
|
|
pExaScr->info->needsSync = FALSE;
|
|
}
|
|
}
|