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xserver/exa/exa_unaccel.c

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/*
*
* Copyright © 1999 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#include "exa_priv.h"
#include "mipict.h"
/*
* These functions wrap the low-level fb rendering functions and
* synchronize framebuffer/accelerated drawing by stalling until
* the accelerator is idle
*/
/**
* Calls exaPrepareAccess with EXA_PREPARE_SRC for the tile, if that is the
* current fill style.
*
* Solid doesn't use an extra pixmap source, and Stippled/OpaqueStippled are
* 1bpp and never in fb, so we don't worry about them.
* We should worry about them for completeness sake and going forward.
*/
void
exaPrepareAccessGC(GCPtr pGC)
{
if (pGC->stipple)
exaPrepareAccess(&pGC->stipple->drawable, EXA_PREPARE_MASK);
if (pGC->fillStyle == FillTiled)
exaPrepareAccess(&pGC->tile.pixmap->drawable, EXA_PREPARE_SRC);
}
/**
* Finishes access to the tile in the GC, if used.
*/
void
exaFinishAccessGC(GCPtr pGC)
{
if (pGC->fillStyle == FillTiled)
exaFinishAccess(&pGC->tile.pixmap->drawable, EXA_PREPARE_SRC);
if (pGC->stipple)
exaFinishAccess(&pGC->stipple->drawable, EXA_PREPARE_MASK);
}
#if DEBUG_TRACE_FALL
char
exaDrawableLocation(DrawablePtr pDrawable)
{
return exaDrawableIsOffscreen(pDrawable) ? 's' : 'm';
}
#endif /* DEBUG_TRACE_FALL */
void
ExaCheckFillSpans (DrawablePtr pDrawable, GCPtr pGC, int nspans,
DDXPointPtr ppt, int *pwidth, int fSorted)
{
EXA_PRE_FALLBACK_GC(pGC);
EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
exaPrepareAccessGC (pGC);
pGC->ops->FillSpans (pDrawable, pGC, nspans, ppt, pwidth, fSorted);
exaFinishAccessGC (pGC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
EXA_POST_FALLBACK_GC(pGC);
}
void
ExaCheckSetSpans (DrawablePtr pDrawable, GCPtr pGC, char *psrc,
DDXPointPtr ppt, int *pwidth, int nspans, int fSorted)
{
EXA_PRE_FALLBACK_GC(pGC);
EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
pGC->ops->SetSpans (pDrawable, pGC, psrc, ppt, pwidth, nspans, fSorted);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
EXA_POST_FALLBACK_GC(pGC);
}
void
ExaCheckPutImage (DrawablePtr pDrawable, GCPtr pGC, int depth,
int x, int y, int w, int h, int leftPad, int format,
char *bits)
{
PixmapPtr pPixmap = exaGetDrawablePixmap(pDrawable);
ExaPixmapPriv(pPixmap);
EXA_PRE_FALLBACK_GC(pGC);
EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
if (!pExaScr->prepare_access_reg || !pExaPixmap->pDamage ||
exaGCReadsDestination(pDrawable, pGC->planemask, pGC->fillStyle,
pGC->alu, pGC->clientClipType))
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
else
pExaScr->prepare_access_reg(pPixmap, EXA_PREPARE_DEST,
DamagePendingRegion(pExaPixmap->pDamage));
pGC->ops->PutImage (pDrawable, pGC, depth, x, y, w, h, leftPad, format, bits);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
EXA_POST_FALLBACK_GC(pGC);
}
void
ExaCheckCopyNtoN (DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
BoxPtr pbox, int nbox, int dx, int dy, Bool reverse,
Bool upsidedown, Pixel bitplane, void *closure)
{
RegionRec reg;
int xoff, yoff;
EXA_PRE_FALLBACK_GC(pGC);
EXA_FALLBACK(("from %p to %p (%c,%c)\n", pSrc, pDst,
exaDrawableLocation(pSrc), exaDrawableLocation(pDst)));
if (pExaScr->prepare_access_reg) {
PixmapPtr pPixmap = exaGetDrawablePixmap(pSrc);
exaGetDrawableDeltas(pSrc, pPixmap, &xoff, &yoff);
RegionInit(&reg, pbox, nbox);
RegionTranslate(&reg, xoff + dx, yoff + dy);
pExaScr->prepare_access_reg(pPixmap, EXA_PREPARE_SRC, &reg);
RegionUninit(&reg);
} else
exaPrepareAccess (pSrc, EXA_PREPARE_SRC);
if (pExaScr->prepare_access_reg &&
!exaGCReadsDestination(pDst, pGC->planemask, pGC->fillStyle,
pGC->alu, pGC->clientClipType)) {
PixmapPtr pPixmap = exaGetDrawablePixmap(pDst);
exaGetDrawableDeltas(pSrc, pPixmap, &xoff, &yoff);
RegionInit(&reg, pbox, nbox);
RegionTranslate(&reg, xoff, yoff);
pExaScr->prepare_access_reg(pPixmap, EXA_PREPARE_DEST, &reg);
RegionUninit(&reg);
} else
exaPrepareAccess (pDst, EXA_PREPARE_DEST);
/* This will eventually call fbCopyNtoN, with some calculation overhead. */
while (nbox--) {
pGC->ops->CopyArea (pSrc, pDst, pGC, pbox->x1 - pSrc->x + dx, pbox->y1 - pSrc->y + dy,
pbox->x2 - pbox->x1, pbox->y2 - pbox->y1, pbox->x1 - pDst->x, pbox->y1 - pDst->y);
pbox++;
}
exaFinishAccess (pSrc, EXA_PREPARE_SRC);
exaFinishAccess (pDst, EXA_PREPARE_DEST);
EXA_POST_FALLBACK_GC(pGC);
}
static void
ExaFallbackPrepareReg(DrawablePtr pDrawable,
GCPtr pGC,
int x, int y, int width, int height,
int index, Bool checkReads)
{
ScreenPtr pScreen = pDrawable->pScreen;
ExaScreenPriv(pScreen);
if (pExaScr->prepare_access_reg &&
!(checkReads && exaGCReadsDestination(pDrawable,
pGC->planemask,
pGC->fillStyle,
pGC->alu,
pGC->clientClipType))) {
BoxRec box;
RegionRec reg;
int xoff, yoff;
PixmapPtr pPixmap = exaGetDrawablePixmap(pDrawable);
exaGetDrawableDeltas(pDrawable, pPixmap, &xoff, &yoff);
box.x1 = pDrawable->x + x + xoff;
box.y1 = pDrawable->y + y + yoff;
box.x2 = box.x1 + width;
box.y2 = box.y1 + height;
RegionInit(&reg, &box, 1);
pExaScr->prepare_access_reg(pPixmap, index, &reg);
RegionUninit(&reg);
} else
exaPrepareAccess(pDrawable, index);
}
RegionPtr
ExaCheckCopyArea (DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
int srcx, int srcy, int w, int h, int dstx, int dsty)
{
RegionPtr ret;
EXA_PRE_FALLBACK_GC(pGC);
EXA_FALLBACK(("from %p to %p (%c,%c)\n", pSrc, pDst,
exaDrawableLocation(pSrc), exaDrawableLocation(pDst)));
ExaFallbackPrepareReg(pSrc, pGC, srcx, srcy, w, h,
EXA_PREPARE_SRC, FALSE);
ExaFallbackPrepareReg(pDst, pGC, dstx, dsty, w, h,
EXA_PREPARE_DEST, TRUE);
ret = pGC->ops->CopyArea (pSrc, pDst, pGC, srcx, srcy, w, h, dstx, dsty);
exaFinishAccess (pSrc, EXA_PREPARE_SRC);
exaFinishAccess (pDst, EXA_PREPARE_DEST);
EXA_POST_FALLBACK_GC(pGC);
return ret;
}
RegionPtr
ExaCheckCopyPlane (DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
int srcx, int srcy, int w, int h, int dstx, int dsty,
unsigned long bitPlane)
{
RegionPtr ret;
EXA_PRE_FALLBACK_GC(pGC);
EXA_FALLBACK(("from %p to %p (%c,%c)\n", pSrc, pDst,
exaDrawableLocation(pSrc), exaDrawableLocation(pDst)));
ExaFallbackPrepareReg(pSrc, pGC, srcx, srcy, w, h,
EXA_PREPARE_SRC, FALSE);
ExaFallbackPrepareReg(pDst, pGC, dstx, dsty, w, h,
EXA_PREPARE_DEST, TRUE);
ret = pGC->ops->CopyPlane (pSrc, pDst, pGC, srcx, srcy, w, h, dstx, dsty,
bitPlane);
exaFinishAccess (pSrc, EXA_PREPARE_SRC);
exaFinishAccess (pDst, EXA_PREPARE_DEST);
EXA_POST_FALLBACK_GC(pGC);
return ret;
}
void
ExaCheckPolyPoint (DrawablePtr pDrawable, GCPtr pGC, int mode, int npt,
DDXPointPtr pptInit)
{
EXA_PRE_FALLBACK_GC(pGC);
EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
pGC->ops->PolyPoint (pDrawable, pGC, mode, npt, pptInit);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
EXA_POST_FALLBACK_GC(pGC);
}
void
ExaCheckPolylines (DrawablePtr pDrawable, GCPtr pGC,
int mode, int npt, DDXPointPtr ppt)
{
EXA_PRE_FALLBACK_GC(pGC);
EXA_FALLBACK(("to %p (%c), width %d, mode %d, count %d\n",
pDrawable, exaDrawableLocation(pDrawable),
pGC->lineWidth, mode, npt));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
exaPrepareAccessGC (pGC);
pGC->ops->Polylines (pDrawable, pGC, mode, npt, ppt);
exaFinishAccessGC (pGC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
EXA_POST_FALLBACK_GC(pGC);
}
void
ExaCheckPolySegment (DrawablePtr pDrawable, GCPtr pGC,
int nsegInit, xSegment *pSegInit)
{
EXA_PRE_FALLBACK_GC(pGC);
EXA_FALLBACK(("to %p (%c) width %d, count %d\n", pDrawable,
exaDrawableLocation(pDrawable), pGC->lineWidth, nsegInit));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
exaPrepareAccessGC (pGC);
pGC->ops->PolySegment (pDrawable, pGC, nsegInit, pSegInit);
exaFinishAccessGC (pGC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
EXA_POST_FALLBACK_GC(pGC);
}
void
ExaCheckPolyArc (DrawablePtr pDrawable, GCPtr pGC,
int narcs, xArc *pArcs)
{
EXA_PRE_FALLBACK_GC(pGC);
EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
exaPrepareAccessGC (pGC);
pGC->ops->PolyArc (pDrawable, pGC, narcs, pArcs);
exaFinishAccessGC (pGC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
EXA_POST_FALLBACK_GC(pGC);
}
void
ExaCheckPolyFillRect (DrawablePtr pDrawable, GCPtr pGC,
int nrect, xRectangle *prect)
{
EXA_PRE_FALLBACK_GC(pGC);
EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
exaPrepareAccessGC (pGC);
pGC->ops->PolyFillRect (pDrawable, pGC, nrect, prect);
exaFinishAccessGC (pGC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
EXA_POST_FALLBACK_GC(pGC);
}
void
ExaCheckImageGlyphBlt (DrawablePtr pDrawable, GCPtr pGC,
int x, int y, unsigned int nglyph,
CharInfoPtr *ppci, pointer pglyphBase)
{
EXA_PRE_FALLBACK_GC(pGC);
EXA_FALLBACK(("to %p (%c)\n", pDrawable,
exaDrawableLocation(pDrawable)));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
exaPrepareAccessGC (pGC);
pGC->ops->ImageGlyphBlt (pDrawable, pGC, x, y, nglyph, ppci, pglyphBase);
exaFinishAccessGC (pGC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
EXA_POST_FALLBACK_GC(pGC);
}
void
ExaCheckPolyGlyphBlt (DrawablePtr pDrawable, GCPtr pGC,
int x, int y, unsigned int nglyph,
CharInfoPtr *ppci, pointer pglyphBase)
{
EXA_PRE_FALLBACK_GC(pGC);
EXA_FALLBACK(("to %p (%c), style %d alu %d\n", pDrawable,
exaDrawableLocation(pDrawable), pGC->fillStyle, pGC->alu));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
exaPrepareAccessGC (pGC);
pGC->ops->PolyGlyphBlt (pDrawable, pGC, x, y, nglyph, ppci, pglyphBase);
exaFinishAccessGC (pGC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
EXA_POST_FALLBACK_GC(pGC);
}
void
ExaCheckPushPixels (GCPtr pGC, PixmapPtr pBitmap,
DrawablePtr pDrawable,
int w, int h, int x, int y)
{
EXA_PRE_FALLBACK_GC(pGC);
EXA_FALLBACK(("from %p to %p (%c,%c)\n", pBitmap, pDrawable,
exaDrawableLocation(&pBitmap->drawable),
exaDrawableLocation(pDrawable)));
ExaFallbackPrepareReg(pDrawable, pGC, x, y, w, h,
EXA_PREPARE_DEST, TRUE);
ExaFallbackPrepareReg(&pBitmap->drawable, pGC, 0, 0, w, h,
EXA_PREPARE_SRC, FALSE);
exaPrepareAccessGC (pGC);
pGC->ops->PushPixels (pGC, pBitmap, pDrawable, w, h, x, y);
exaFinishAccessGC (pGC);
exaFinishAccess (&pBitmap->drawable, EXA_PREPARE_SRC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
EXA_POST_FALLBACK_GC(pGC);
}
void
ExaCheckCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
{
DrawablePtr pDrawable = &pWin->drawable;
ScreenPtr pScreen = pDrawable->pScreen;
EXA_PRE_FALLBACK(pScreen);
EXA_FALLBACK(("from %p\n", pWin));
/* Only need the source bits, the destination region will be overwritten */
if (pExaScr->prepare_access_reg) {
PixmapPtr pPixmap = pScreen->GetWindowPixmap(pWin);
int xoff, yoff;
exaGetDrawableDeltas(&pWin->drawable, pPixmap, &xoff, &yoff);
RegionTranslate(prgnSrc, xoff, yoff);
pExaScr->prepare_access_reg(pPixmap, EXA_PREPARE_SRC, prgnSrc);
RegionTranslate(prgnSrc, -xoff, -yoff);
} else
exaPrepareAccess(pDrawable, EXA_PREPARE_SRC);
swap(pExaScr, pScreen, CopyWindow);
pScreen->CopyWindow (pWin, ptOldOrg, prgnSrc);
swap(pExaScr, pScreen, CopyWindow);
exaFinishAccess (pDrawable, EXA_PREPARE_SRC);
EXA_POST_FALLBACK(pScreen);
}
void
ExaCheckGetImage(DrawablePtr pDrawable, int x, int y, int w, int h,
unsigned int format, unsigned long planeMask, char *d)
{
ScreenPtr pScreen = pDrawable->pScreen;
EXA_PRE_FALLBACK(pScreen);
EXA_FALLBACK(("from %p (%c)\n", pDrawable,
exaDrawableLocation(pDrawable)));
ExaFallbackPrepareReg(pDrawable, NULL, x, y, w, h,
EXA_PREPARE_SRC, FALSE);
swap(pExaScr, pScreen, GetImage);
pScreen->GetImage (pDrawable, x, y, w, h, format, planeMask, d);
swap(pExaScr, pScreen, GetImage);
exaFinishAccess (pDrawable, EXA_PREPARE_SRC);
EXA_POST_FALLBACK(pScreen);
}
void
ExaCheckGetSpans (DrawablePtr pDrawable,
int wMax,
DDXPointPtr ppt,
int *pwidth,
int nspans,
char *pdstStart)
{
ScreenPtr pScreen = pDrawable->pScreen;
EXA_PRE_FALLBACK(pScreen);
EXA_FALLBACK(("from %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
exaPrepareAccess (pDrawable, EXA_PREPARE_SRC);
swap(pExaScr, pScreen, GetSpans);
pScreen->GetSpans (pDrawable, wMax, ppt, pwidth, nspans, pdstStart);
swap(pExaScr, pScreen, GetSpans);
exaFinishAccess (pDrawable, EXA_PREPARE_SRC);
EXA_POST_FALLBACK(pScreen);
}
static void
ExaSrcValidate(DrawablePtr pDrawable,
int x,
int y,
int width,
int height)
{
ScreenPtr pScreen = pDrawable->pScreen;
ExaScreenPriv(pScreen);
PixmapPtr pPix = exaGetDrawablePixmap (pDrawable);
BoxRec box;
RegionRec reg;
RegionPtr dst;
int xoff, yoff;
exaGetDrawableDeltas(pDrawable, pPix, &xoff, &yoff);
box.x1 = x + xoff;
box.y1 = y + yoff;
box.x2 = box.x1 + width;
box.y2 = box.y1 + height;
dst = (pExaScr->srcPix == pPix) ? &pExaScr->srcReg :
&pExaScr->maskReg;
RegionInit(&reg, &box, 1);
RegionUnion(dst, dst, &reg);
RegionUninit(&reg);
if (pExaScr->SavedSourceValidate) {
swap(pExaScr, pScreen, SourceValidate);
pScreen->SourceValidate(pDrawable, x, y, width, height);
swap(pExaScr, pScreen, SourceValidate);
}
}
static Bool
ExaPrepareCompositeReg(ScreenPtr pScreen,
CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
RegionRec region;
RegionPtr dstReg = NULL;
RegionPtr srcReg = NULL;
RegionPtr maskReg = NULL;
PixmapPtr pSrcPix = NULL;
PixmapPtr pMaskPix = NULL;
PixmapPtr pDstPix;
ExaScreenPriv(pScreen);
Bool ret;
RegionNull(&region);
if (pSrc->pDrawable) {
pSrcPix = exaGetDrawablePixmap(pSrc->pDrawable);
RegionNull(&pExaScr->srcReg);
srcReg = &pExaScr->srcReg;
pExaScr->srcPix = pSrcPix;
if (pSrc != pDst)
RegionTranslate(pSrc->pCompositeClip,
-pSrc->pDrawable->x,
-pSrc->pDrawable->y);
}
if (pMask && pMask->pDrawable) {
pMaskPix = exaGetDrawablePixmap(pMask->pDrawable);
RegionNull(&pExaScr->maskReg);
maskReg = &pExaScr->maskReg;
if (pMask != pDst && pMask != pSrc)
RegionTranslate(pMask->pCompositeClip,
-pMask->pDrawable->x,
-pMask->pDrawable->y);
}
RegionTranslate(pDst->pCompositeClip,
-pDst->pDrawable->x,
-pDst->pDrawable->y);
pExaScr->SavedSourceValidate = ExaSrcValidate;
swap(pExaScr, pScreen, SourceValidate);
ret = miComputeCompositeRegion (&region, pSrc, pMask, pDst,
xSrc, ySrc, xMask, yMask,
xDst,
yDst,
width, height);
swap(pExaScr, pScreen, SourceValidate);
RegionTranslate(pDst->pCompositeClip,
pDst->pDrawable->x,
pDst->pDrawable->y);
if (pSrc->pDrawable && pSrc != pDst)
RegionTranslate(pSrc->pCompositeClip,
pSrc->pDrawable->x,
pSrc->pDrawable->y);
if (pMask && pMask->pDrawable && pMask != pDst && pMask != pSrc)
RegionTranslate(pMask->pCompositeClip,
pMask->pDrawable->x,
pMask->pDrawable->y);
if (!ret) {
if (srcReg)
RegionUninit(srcReg);
if (maskReg)
RegionUninit(maskReg);
return FALSE;
}
/**
* Don't limit alphamaps readbacks for now until we've figured out how that
* should be done.
*/
if (pSrc->alphaMap && pSrc->alphaMap->pDrawable)
pExaScr->prepare_access_reg(exaGetDrawablePixmap(pSrc->alphaMap->pDrawable),
EXA_PREPARE_AUX_SRC,
NULL);
if (pMask && pMask->alphaMap && pMask->alphaMap->pDrawable)
pExaScr->prepare_access_reg(exaGetDrawablePixmap(pMask->alphaMap->pDrawable),
EXA_PREPARE_AUX_MASK,
NULL);
if (pSrcPix)
pExaScr->prepare_access_reg(pSrcPix,
EXA_PREPARE_SRC,
srcReg);
if (pMaskPix)
pExaScr->prepare_access_reg(pMaskPix,
EXA_PREPARE_MASK,
maskReg);
if (srcReg)
RegionUninit(srcReg);
if (maskReg)
RegionUninit(maskReg);
pDstPix = exaGetDrawablePixmap(pDst->pDrawable);
if (!exaOpReadsDestination(op)) {
int xoff;
int yoff;
exaGetDrawableDeltas (pDst->pDrawable, pDstPix, &xoff, &yoff);
RegionTranslate(&region, pDst->pDrawable->x + xoff,
pDst->pDrawable->y + yoff);
dstReg = &region;
}
if (pDst->alphaMap && pDst->alphaMap->pDrawable)
pExaScr->prepare_access_reg(exaGetDrawablePixmap(pDst->alphaMap->pDrawable),
EXA_PREPARE_AUX_DEST,
dstReg);
pExaScr->prepare_access_reg(pDstPix, EXA_PREPARE_DEST, dstReg);
RegionUninit(&region);
return TRUE;
}
void
ExaCheckComposite (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
ScreenPtr pScreen = pDst->pDrawable->pScreen;
PictureScreenPtr ps = GetPictureScreen(pScreen);
EXA_PRE_FALLBACK(pScreen);
if (pExaScr->prepare_access_reg) {
if (!ExaPrepareCompositeReg(pScreen, op, pSrc, pMask, pDst, xSrc,
ySrc, xMask, yMask, xDst, yDst, width,
height))
goto out_no_clip;
} else {
/* We need to prepare access to any separate alpha maps first,
* in case the driver doesn't support EXA_PREPARE_AUX*,
* in which case EXA_PREPARE_SRC may be used for moving them out.
*/
if (pSrc->alphaMap && pSrc->alphaMap->pDrawable)
exaPrepareAccess(pSrc->alphaMap->pDrawable, EXA_PREPARE_AUX_SRC);
if (pMask && pMask->alphaMap && pMask->alphaMap->pDrawable)
exaPrepareAccess(pMask->alphaMap->pDrawable, EXA_PREPARE_AUX_MASK);
if (pDst->alphaMap && pDst->alphaMap->pDrawable)
exaPrepareAccess(pDst->alphaMap->pDrawable, EXA_PREPARE_AUX_DEST);
exaPrepareAccess (pDst->pDrawable, EXA_PREPARE_DEST);
EXA_FALLBACK(("from picts %p/%p to pict %p\n",
pSrc, pMask, pDst));
if (pSrc->pDrawable != NULL)
exaPrepareAccess (pSrc->pDrawable, EXA_PREPARE_SRC);
if (pMask && pMask->pDrawable != NULL)
exaPrepareAccess (pMask->pDrawable, EXA_PREPARE_MASK);
}
swap(pExaScr, ps, Composite);
ps->Composite (op,
pSrc,
pMask,
pDst,
xSrc,
ySrc,
xMask,
yMask,
xDst,
yDst,
width,
height);
swap(pExaScr, ps, Composite);
if (pMask && pMask->pDrawable != NULL)
exaFinishAccess (pMask->pDrawable, EXA_PREPARE_MASK);
if (pSrc->pDrawable != NULL)
exaFinishAccess (pSrc->pDrawable, EXA_PREPARE_SRC);
exaFinishAccess (pDst->pDrawable, EXA_PREPARE_DEST);
if (pDst->alphaMap && pDst->alphaMap->pDrawable)
exaFinishAccess(pDst->alphaMap->pDrawable, EXA_PREPARE_AUX_DEST);
if (pSrc->alphaMap && pSrc->alphaMap->pDrawable)
exaFinishAccess(pSrc->alphaMap->pDrawable, EXA_PREPARE_AUX_SRC);
if (pMask && pMask->alphaMap && pMask->alphaMap->pDrawable)
exaFinishAccess(pMask->alphaMap->pDrawable, EXA_PREPARE_AUX_MASK);
out_no_clip:
EXA_POST_FALLBACK(pScreen);
}
/**
* Avoid migration ping-pong when using a mask.
*/
void
ExaCheckGlyphs (CARD8 op,
PicturePtr pSrc,
PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc,
INT16 ySrc,
int nlist,
GlyphListPtr list,
GlyphPtr *glyphs)
{
ScreenPtr pScreen = pDst->pDrawable->pScreen;
EXA_PRE_FALLBACK(pScreen);
miGlyphs(op, pSrc, pDst, maskFormat, xSrc, ySrc, nlist, list, glyphs);
EXA_POST_FALLBACK(pScreen);
}
void
ExaCheckAddTraps (PicturePtr pPicture,
INT16 x_off,
INT16 y_off,
int ntrap,
xTrap *traps)
{
ScreenPtr pScreen = pPicture->pDrawable->pScreen;
PictureScreenPtr ps = GetPictureScreen(pScreen);
EXA_PRE_FALLBACK(pScreen);
EXA_FALLBACK(("to pict %p (%c)\n",
exaDrawableLocation(pPicture->pDrawable)));
exaPrepareAccess(pPicture->pDrawable, EXA_PREPARE_DEST);
swap(pExaScr, ps, AddTraps);
ps->AddTraps (pPicture, x_off, y_off, ntrap, traps);
swap(pExaScr, ps, AddTraps);
exaFinishAccess(pPicture->pDrawable, EXA_PREPARE_DEST);
EXA_POST_FALLBACK(pScreen);
}
/**
* Gets the 0,0 pixel of a pixmap. Used for doing solid fills of tiled pixmaps
* that happen to be 1x1. Pixmap must be at least 8bpp.
*/
CARD32
exaGetPixmapFirstPixel (PixmapPtr pPixmap)
{
switch (pPixmap->drawable.bitsPerPixel) {
case 32:
{
CARD32 pixel;
pPixmap->drawable.pScreen->GetImage(&pPixmap->drawable, 0, 0, 1, 1,
ZPixmap, ~0, (char*)&pixel);
return pixel;
}
case 16:
{
CARD16 pixel;
pPixmap->drawable.pScreen->GetImage(&pPixmap->drawable, 0, 0, 1, 1,
ZPixmap, ~0, (char*)&pixel);
return pixel;
}
case 8:
{
CARD8 pixel;
pPixmap->drawable.pScreen->GetImage(&pPixmap->drawable, 0, 0, 1, 1,
ZPixmap, ~0, (char*)&pixel);
return pixel;
}
default:
FatalError("%s called for invalid bpp %d\n", __func__,
pPixmap->drawable.bitsPerPixel);
}
}
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