dc0354104c
dependencies. It was nearly abstract enough already to be used by
multiple DDXes. This will be useful for EXA development through
providing a fake acceleration implementation within Xephyr, so that
testing can be done on new EXA code without worrying about buggy
drivers.
436 lines
11 KiB
C
436 lines
11 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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#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 <X11/fonts/fontstruct.h>
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#include "dixfontstr.h"
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#include "exa.h"
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#include "cw.h"
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static int exaGeneration;
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int exaScreenPrivateIndex;
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int exaPixmapPrivateIndex;
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/* Returns the offset (in bytes) within the framebuffer of the beginning of the
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* given pixmap. May need to be extended in the future if we grow support for
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* having multiple card-accessible areas at different offsets.
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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)pPix->devPrivate.ptr -
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(unsigned long)pExaScr->info->card.memoryBase);
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}
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/* Returns the pitch in bytes of the given pixmap. */
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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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/* Returns the size in bytes of the given pixmap in
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* video memory. Only valid when the vram storage has been
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* allocated
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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->size;
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return 0;
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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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void
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exaDrawableDirty (DrawablePtr pDrawable)
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{
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ExaPixmapPrivPtr pExaPixmap;
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pExaPixmap = ExaGetPixmapPriv(exaGetDrawablePixmap (pDrawable));
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if (pExaPixmap != NULL)
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pExaPixmap->dirty = TRUE;
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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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if (pPixmap->refcnt == 1)
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{
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ExaPixmapPriv (pPixmap);
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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 = pExaPixmap->devPrivate;
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pPixmap->devKind = pExaPixmap->devKind;
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}
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}
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return fbDestroyPixmap (pPixmap);
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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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{
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PixmapPtr pPixmap;
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ExaPixmapPrivPtr pExaPixmap;
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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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pPixmap = fbCreatePixmap (pScreen, w, h, depth);
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if (!pPixmap)
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return NULL;
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pExaPixmap = ExaGetPixmapPriv(pPixmap);
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/* Glyphs have w/h equal to zero, and may not be migrated. See exaGlyphs. */
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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->area = NULL;
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pExaPixmap->dirty = FALSE;
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return pPixmap;
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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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return ((unsigned long) ((CARD8 *) p->devPrivate.ptr -
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(CARD8 *) pExaScr->info->card.memoryBase) <
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pExaScr->info->card.memorySize);
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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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PixmapPtr
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exaGetOffscreenPixmap (DrawablePtr pDrawable, int *xp, int *yp)
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{
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PixmapPtr pPixmap;
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int x, y;
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if (pDrawable->type == DRAWABLE_WINDOW) {
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pPixmap = (*pDrawable->pScreen->GetWindowPixmap) ((WindowPtr) pDrawable);
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#ifdef COMPOSITE
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x = -pPixmap->screen_x;
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y = -pPixmap->screen_y;
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#else
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x = 0;
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y = 0;
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#endif
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}
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else
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{
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pPixmap = (PixmapPtr) pDrawable;
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x = 0;
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y = 0;
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}
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*xp = x;
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*yp = y;
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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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void
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exaPrepareAccess(DrawablePtr pDrawable, int index)
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{
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ScreenPtr pScreen = pDrawable->pScreen;
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ExaScreenPriv (pScreen);
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PixmapPtr pPixmap;
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pPixmap = exaGetDrawablePixmap (pDrawable);
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if (index == EXA_PREPARE_DEST)
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exaDrawableDirty (pDrawable);
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if (exaPixmapIsOffscreen (pPixmap))
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exaWaitSync (pDrawable->pScreen);
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else
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return;
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if (pExaScr->info->accel.PrepareAccess == NULL)
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return;
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if (!(*pExaScr->info->accel.PrepareAccess) (pPixmap, index)) {
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ExaPixmapPriv (pPixmap);
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if (pExaPixmap->score != EXA_PIXMAP_SCORE_PINNED)
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FatalError("Driver failed PrepareAccess on a pinned pixmap\n");
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exaMoveOutPixmap (pPixmap);
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}
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}
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void
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exaFinishAccess(DrawablePtr pDrawable, int index)
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{
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ScreenPtr pScreen = pDrawable->pScreen;
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ExaScreenPriv (pScreen);
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PixmapPtr pPixmap;
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if (pExaScr->info->accel.FinishAccess == NULL)
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return;
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pPixmap = exaGetDrawablePixmap (pDrawable);
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if (!exaPixmapIsOffscreen (pPixmap))
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return;
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(*pExaScr->info->accel.FinishAccess) (pPixmap, index);
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}
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static void
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exaValidateGC (GCPtr pGC, Mask changes, DrawablePtr pDrawable)
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{
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fbValidateGC (pGC, changes, pDrawable);
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if (exaDrawableIsOffscreen (pDrawable))
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pGC->ops = (GCOps *) &exaOps;
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else
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pGC->ops = (GCOps *) &exaAsyncPixmapGCOps;
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}
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static GCFuncs exaGCFuncs = {
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exaValidateGC,
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miChangeGC,
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miCopyGC,
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miDestroyGC,
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miChangeClip,
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miDestroyClip,
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miCopyClip
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};
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static int
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exaCreateGC (GCPtr pGC)
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{
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if (!fbCreateGC (pGC))
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return FALSE;
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pGC->funcs = &exaGCFuncs;
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return TRUE;
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}
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static Bool
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exaCloseScreen(int i, ScreenPtr pScreen)
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{
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ExaScreenPriv(pScreen);
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#ifdef RENDER
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PictureScreenPtr ps = GetPictureScreenIfSet(pScreen);
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#endif
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pScreen->CreateGC = pExaScr->SavedCreateGC;
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pScreen->CloseScreen = pExaScr->SavedCloseScreen;
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pScreen->GetImage = pExaScr->SavedGetImage;
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pScreen->GetSpans = pExaScr->SavedGetSpans;
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pScreen->PaintWindowBackground = pExaScr->SavedPaintWindowBackground;
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pScreen->PaintWindowBorder = pExaScr->SavedPaintWindowBorder;
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pScreen->CreatePixmap = pExaScr->SavedCreatePixmap;
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pScreen->DestroyPixmap = pExaScr->SavedDestroyPixmap;
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pScreen->CopyWindow = pExaScr->SavedCopyWindow;
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#ifdef RENDER
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if (ps) {
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ps->Composite = pExaScr->SavedComposite;
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ps->Glyphs = pExaScr->SavedGlyphs;
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}
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#endif
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xfree (pExaScr);
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return (*pScreen->CloseScreen) (i, pScreen);
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}
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Bool
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exaDriverInit (ScreenPtr pScreen,
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ExaDriverPtr pScreenInfo)
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{
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ExaScreenPrivPtr pExaScr;
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#ifdef RENDER
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PictureScreenPtr ps = GetPictureScreenIfSet(pScreen);
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#endif
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if (exaGeneration != serverGeneration)
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{
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exaScreenPrivateIndex = AllocateScreenPrivateIndex();
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exaPixmapPrivateIndex = AllocatePixmapPrivateIndex();
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exaGeneration = serverGeneration;
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}
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pExaScr = xcalloc (sizeof (ExaScreenPrivRec), 1);
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if (!pExaScr) {
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LogMessage(X_WARNING, "EXA(%d): Failed to allocate screen private\n",
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pScreen->myNum);
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return FALSE;
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}
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pExaScr->info = pScreenInfo;
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pScreen->devPrivates[exaScreenPrivateIndex].ptr = (pointer) pExaScr;
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exaDDXDriverInit(pScreen);
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/*
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* Replace various fb screen functions
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*/
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pExaScr->SavedCloseScreen = pScreen->CloseScreen;
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pScreen->CloseScreen = exaCloseScreen;
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pExaScr->SavedCreateGC = pScreen->CreateGC;
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pScreen->CreateGC = exaCreateGC;
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pExaScr->SavedGetImage = pScreen->GetImage;
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pScreen->GetImage = ExaCheckGetImage;
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pExaScr->SavedGetSpans = pScreen->GetSpans;
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pScreen->GetSpans = ExaCheckGetSpans;
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pExaScr->SavedCopyWindow = pScreen->CopyWindow;
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pScreen->CopyWindow = exaCopyWindow;
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pExaScr->SavedPaintWindowBackground = pScreen->PaintWindowBackground;
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pScreen->PaintWindowBackground = exaPaintWindow;
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pExaScr->SavedPaintWindowBorder = pScreen->PaintWindowBorder;
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pScreen->PaintWindowBorder = exaPaintWindow;
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pScreen->BackingStoreFuncs.SaveAreas = ExaCheckSaveAreas;
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pScreen->BackingStoreFuncs.RestoreAreas = ExaCheckRestoreAreas;
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#ifdef RENDER
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if (ps) {
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pExaScr->SavedComposite = ps->Composite;
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ps->Composite = exaComposite;
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pExaScr->SavedGlyphs = ps->Glyphs;
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ps->Glyphs = exaGlyphs;
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}
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#endif
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miDisableCompositeWrapper(pScreen);
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/*
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* Hookup offscreen pixmaps
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*/
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if ((pExaScr->info->card.flags & EXA_OFFSCREEN_PIXMAPS) &&
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pExaScr->info->card.offScreenBase < pExaScr->info->card.memorySize)
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{
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if (!AllocatePixmapPrivate(pScreen, exaPixmapPrivateIndex,
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sizeof (ExaPixmapPrivRec))) {
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LogMessage(X_WARNING,
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"EXA(%d): Failed to allocate pixmap private\n",
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pScreen->myNum);
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return FALSE;
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}
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pExaScr->SavedCreatePixmap = pScreen->CreatePixmap;
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pScreen->CreatePixmap = exaCreatePixmap;
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pExaScr->SavedDestroyPixmap = pScreen->DestroyPixmap;
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pScreen->DestroyPixmap = exaDestroyPixmap;
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}
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else
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{
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LogMessage(X_INFO, "EXA(%d): No offscreen pixmaps\n", pScreen->myNum);
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if (!AllocatePixmapPrivate(pScreen, exaPixmapPrivateIndex, 0))
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return FALSE;
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}
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DBG_PIXMAP(("============== %ld < %ld\n", pExaScr->info->card.offScreenBase,
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pExaScr->info->card.memorySize));
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if (pExaScr->info->card.offScreenBase < pExaScr->info->card.memorySize) {
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if (!exaOffscreenInit (pScreen)) {
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LogMessage(X_WARNING, "EXA(%d): Offscreen pixmap setup failed\n",
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pScreen->myNum);
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return FALSE;
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}
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}
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return TRUE;
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}
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void
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exaDriverFini (ScreenPtr pScreen)
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{
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/*right now does nothing*/
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}
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void exaMarkSync(ScreenPtr pScreen)
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{
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ExaScreenPriv(pScreen);
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ExaCardInfoPtr card = &(pExaScr->info->card);
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card->needsSync = TRUE;
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if (pExaScr->info->accel.MarkSync != NULL) {
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card->lastMarker = (*pExaScr->info->accel.MarkSync)(pScreen);
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}
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}
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void exaWaitSync(ScreenPtr pScreen)
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{
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ExaScreenPriv(pScreen);
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ExaCardInfoPtr card = &(pExaScr->info->card);
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if (card->needsSync && !pExaScr->swappedOut) {
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(*pExaScr->info->accel.WaitMarker)(pScreen, card->lastMarker);
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card->needsSync = FALSE;
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}
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}
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unsigned int exaGetVersion(void)
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{
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return EXA_VERSION;
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}
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