2822cbc1fb
when extending the driver interface. The card and accel structures are
merged into the ExaDriverRec, which is to be allocated using
exaDriverAlloc(). The driver structure also grows exa_major and
exa_minor, which drivers fill in and have checked by EXA
(double-checking that the driver really did check that the EXA version
was correct). Removes exaInitCard(), which is replaced by the driver
filling in the rec by hand, and the exaGetVersion() and related
EXA_*VERSION which are replaced by always using the XFree86 loadable
module versioning.
459 lines
12 KiB
C
459 lines
12 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->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->memoryBase) <
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pExaScr->info->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->PrepareAccess == NULL)
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return;
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if (!(*pExaScr->info->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->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->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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/**
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* This function allocates a driver structure for EXA drivers to fill in. By
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* having EXA allocate the structure, the driver structure can be extended
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* without breaking ABI between EXA and the drivers. The driver's
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* responsibility is to check beforehand that the EXA module has a matching
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* major number and sufficient minor. Drivers are responsible for freeing the
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* driver structure using xfree().
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*/
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ExaDriverPtr
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exaDriverAlloc(void)
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{
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return xcalloc(1, sizeof(ExaDriverRec));
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}
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/**
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* exaDriverInit sets up EXA given a driver record filled in by the driver.
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* See the comments in ExaDriverRec for what must be filled in and what is
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* optional.
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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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if (pScreenInfo->exa_major != EXA_VERSION_MAJOR ||
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pScreenInfo->exa_minor > EXA_VERSION_MINOR)
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{
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LogMessage(X_ERROR, "EXA(%d): driver's EXA version requirements "
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"(%d.%d) are incompatible with EXA version (%d.%d)\n",
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pScreen->myNum,
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pScreenInfo->exa_major, pScreenInfo->exa_minor,
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EXA_VERSION_MAJOR, EXA_VERSION_MINOR);
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return FALSE;
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}
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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->flags & EXA_OFFSCREEN_PIXMAPS) &&
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pExaScr->info->offScreenBase < pExaScr->info->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->offScreenBase,
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pExaScr->info->memorySize));
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if (pExaScr->info->offScreenBase < pExaScr->info->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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pExaScr->info->needsSync = TRUE;
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if (pExaScr->info->MarkSync != NULL) {
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pExaScr->info->lastMarker = (*pExaScr->info->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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if (pExaScr->info->needsSync && !pExaScr->swappedOut) {
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(*pExaScr->info->WaitMarker)(pScreen, pExaScr->info->lastMarker);
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pExaScr->info->needsSync = FALSE;
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}
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}
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