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xserver-multidpi/exa/exa_accel.c
Eric Anholt dc0354104c Move EXA implementation up to the top level and remove its XFree86 
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.
2006-02-16 00:14:11 +00:00

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/*
* Copyright © 2001 Keith Packard
*
* Partly based on code that is Copyright © The XFree86 Project Inc.
*
* 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.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "exa_priv.h"
#include <X11/fonts/fontstruct.h>
#include "dixfontstr.h"
#include "exa.h"
#include "cw.h"
static void
exaFillSpans(DrawablePtr pDrawable, GCPtr pGC, int n,
DDXPointPtr ppt, int *pwidth, int fSorted)
{
ScreenPtr pScreen = pDrawable->pScreen;
ExaScreenPriv (pScreen);
RegionPtr pClip = fbGetCompositeClip(pGC);
PixmapPtr pPixmap;
BoxPtr pextent, pbox;
int nbox;
int extentX1, extentX2, extentY1, extentY2;
int fullX1, fullX2, fullY1;
int partX1, partX2;
int off_x, off_y;
if (pExaScr->swappedOut) {
ExaCheckFillSpans(pDrawable, pGC, n, ppt, pwidth, fSorted);
return;
}
if (pGC->fillStyle != FillSolid ||
pDrawable->width > pExaScr->info->card.maxX ||
pDrawable->height > pExaScr->info->card.maxY ||
!(pPixmap = exaGetOffscreenPixmap (pDrawable, &off_x, &off_y)) ||
!(*pExaScr->info->accel.PrepareSolid) (pPixmap,
pGC->alu,
pGC->planemask,
pGC->fgPixel))
{
ExaCheckFillSpans (pDrawable, pGC, n, ppt, pwidth, fSorted);
return;
}
pextent = REGION_EXTENTS(pGC->pScreen, pClip);
extentX1 = pextent->x1;
extentY1 = pextent->y1;
extentX2 = pextent->x2;
extentY2 = pextent->y2;
while (n--)
{
fullX1 = ppt->x;
fullY1 = ppt->y;
fullX2 = fullX1 + (int) *pwidth;
ppt++;
pwidth++;
if (fullY1 < extentY1 || extentY2 <= fullY1)
continue;
if (fullX1 < extentX1)
fullX1 = extentX1;
if (fullX2 > extentX2)
fullX2 = extentX2;
if (fullX1 >= fullX2)
continue;
nbox = REGION_NUM_RECTS (pClip);
if (nbox == 1)
{
(*pExaScr->info->accel.Solid) (pPixmap,
fullX1 + off_x, fullY1 + off_y,
fullX2 + off_x, fullY1 + 1 + off_y);
}
else
{
pbox = REGION_RECTS(pClip);
while(nbox--)
{
if (pbox->y1 <= fullY1 && fullY1 < pbox->y2)
{
partX1 = pbox->x1;
if (partX1 < fullX1)
partX1 = fullX1;
partX2 = pbox->x2;
if (partX2 > fullX2)
partX2 = fullX2;
if (partX2 > partX1)
(*pExaScr->info->accel.Solid) (pPixmap,
partX1 + off_x, fullY1 + off_y,
partX2 + off_x, fullY1 + 1 + off_y);
}
pbox++;
}
}
}
(*pExaScr->info->accel.DoneSolid) (pPixmap);
exaDrawableDirty (pDrawable);
exaMarkSync(pScreen);
}
void
exaCopyNtoN (DrawablePtr pSrcDrawable,
DrawablePtr pDstDrawable,
GCPtr pGC,
BoxPtr pbox,
int nbox,
int dx,
int dy,
Bool reverse,
Bool upsidedown,
Pixel bitplane,
void *closure)
{
ExaScreenPriv (pDstDrawable->pScreen);
PixmapPtr pSrcPixmap, pDstPixmap;
int src_off_x, src_off_y;
int dst_off_x, dst_off_y;
/* Respect maxX/maxY in a trivial way: don't set up drawing when we might
* violate the limits. The proper solution would be a temporary pixmap
* adjusted so that the drawing happened within limits.
*/
if (pSrcDrawable->width > pExaScr->info->card.maxX ||
pSrcDrawable->height > pExaScr->info->card.maxY ||
pDstDrawable->width > pExaScr->info->card.maxX ||
pDstDrawable->height > pExaScr->info->card.maxY)
{
exaDrawableUseMemory (pSrcDrawable);
exaDrawableUseMemory (pDstDrawable);
goto fallback;
}
/* If either drawable is already in framebuffer, try to get both of them
* there. Otherwise, be happy with where they are.
*/
if (exaDrawableIsOffscreen(pDstDrawable) ||
exaDrawableIsOffscreen(pSrcDrawable))
{
exaDrawableUseScreen (pSrcDrawable);
exaDrawableUseScreen (pDstDrawable);
} else {
exaDrawableUseMemory (pSrcDrawable);
exaDrawableUseMemory (pDstDrawable);
}
if ((pSrcPixmap = exaGetOffscreenPixmap (pSrcDrawable, &src_off_x, &src_off_y)) &&
(pDstPixmap = exaGetOffscreenPixmap (pDstDrawable, &dst_off_x, &dst_off_y)) &&
(*pExaScr->info->accel.PrepareCopy) (pSrcPixmap,
pDstPixmap,
dx,
dy,
pGC ? pGC->alu : GXcopy,
pGC ? pGC->planemask : FB_ALLONES))
{
while (nbox--)
{
(*pExaScr->info->accel.Copy) (pDstPixmap,
pbox->x1 + dx + src_off_x,
pbox->y1 + dy + src_off_y,
pbox->x1 + dst_off_x, pbox->y1 + dst_off_y,
pbox->x2 - pbox->x1,
pbox->y2 - pbox->y1);
pbox++;
}
(*pExaScr->info->accel.DoneCopy) (pDstPixmap);
exaMarkSync(pDstDrawable->pScreen);
exaDrawableDirty (pDstDrawable);
return;
}
fallback:
EXA_FALLBACK(("from 0x%lx to 0x%lx\n", (long)pSrcDrawable,
(long)pDstDrawable));
exaPrepareAccess (pDstDrawable, EXA_PREPARE_DEST);
exaPrepareAccess (pSrcDrawable, EXA_PREPARE_SRC);
fbCopyNtoN (pSrcDrawable, pDstDrawable, pGC,
pbox, nbox, dx, dy, reverse, upsidedown,
bitplane, closure);
exaFinishAccess (pSrcDrawable, EXA_PREPARE_SRC);
exaFinishAccess (pDstDrawable, EXA_PREPARE_DEST);
}
RegionPtr
exaCopyArea(DrawablePtr pSrcDrawable, DrawablePtr pDstDrawable, GCPtr pGC,
int srcx, int srcy, int width, int height, int dstx, int dsty)
{
ExaScreenPriv (pDstDrawable->pScreen);
if (pExaScr->swappedOut) {
return ExaCheckCopyArea(pSrcDrawable, pDstDrawable, pGC,
srcx, srcy, width, height, dstx, dsty);
}
return fbDoCopy (pSrcDrawable, pDstDrawable, pGC,
srcx, srcy, width, height,
dstx, dsty, exaCopyNtoN, 0, NULL);
}
static void
exaPolyFillRect(DrawablePtr pDrawable,
GCPtr pGC,
int nrect,
xRectangle *prect)
{
ExaScreenPriv (pDrawable->pScreen);
RegionPtr pClip = fbGetCompositeClip(pGC);
PixmapPtr pPixmap;
register BoxPtr pbox;
BoxPtr pextent;
int extentX1, extentX2, extentY1, extentY2;
int fullX1, fullX2, fullY1, fullY2;
int partX1, partX2, partY1, partY2;
int xoff, yoff;
int xorg, yorg;
int n;
if (pExaScr->swappedOut ||
pGC->fillStyle != FillSolid ||
pDrawable->width > pExaScr->info->card.maxX ||
pDrawable->height > pExaScr->info->card.maxY ||
!(pPixmap = exaGetOffscreenPixmap (pDrawable, &xoff, &yoff)) ||
!(*pExaScr->info->accel.PrepareSolid) (pPixmap,
pGC->alu,
pGC->planemask,
pGC->fgPixel))
{
ExaCheckPolyFillRect (pDrawable, pGC, nrect, prect);
return;
}
xorg = pDrawable->x;
yorg = pDrawable->y;
pextent = REGION_EXTENTS(pGC->pScreen, pClip);
extentX1 = pextent->x1;
extentY1 = pextent->y1;
extentX2 = pextent->x2;
extentY2 = pextent->y2;
while (nrect--)
{
fullX1 = prect->x + xorg;
fullY1 = prect->y + yorg;
fullX2 = fullX1 + (int) prect->width;
fullY2 = fullY1 + (int) prect->height;
prect++;
if (fullX1 < extentX1)
fullX1 = extentX1;
if (fullY1 < extentY1)
fullY1 = extentY1;
if (fullX2 > extentX2)
fullX2 = extentX2;
if (fullY2 > extentY2)
fullY2 = extentY2;
if ((fullX1 >= fullX2) || (fullY1 >= fullY2))
continue;
n = REGION_NUM_RECTS (pClip);
if (n == 1)
{
(*pExaScr->info->accel.Solid) (pPixmap,
fullX1 + xoff, fullY1 + yoff,
fullX2 + xoff, fullY2 + yoff);
}
else
{
pbox = REGION_RECTS(pClip);
/*
* clip the rectangle to each box in the clip region
* this is logically equivalent to calling Intersect()
*/
while(n--)
{
partX1 = pbox->x1;
if (partX1 < fullX1)
partX1 = fullX1;
partY1 = pbox->y1;
if (partY1 < fullY1)
partY1 = fullY1;
partX2 = pbox->x2;
if (partX2 > fullX2)
partX2 = fullX2;
partY2 = pbox->y2;
if (partY2 > fullY2)
partY2 = fullY2;
pbox++;
if (partX1 < partX2 && partY1 < partY2)
(*pExaScr->info->accel.Solid) (pPixmap,
partX1 + xoff, partY1 + yoff,
partX2 + xoff, partY2 + yoff);
}
}
}
(*pExaScr->info->accel.DoneSolid) (pPixmap);
exaDrawableDirty (pDrawable);
exaMarkSync(pDrawable->pScreen);
}
static void
exaSolidBoxClipped (DrawablePtr pDrawable,
RegionPtr pClip,
FbBits pm,
FbBits fg,
int x1,
int y1,
int x2,
int y2)
{
ExaScreenPriv (pDrawable->pScreen);
PixmapPtr pPixmap;
BoxPtr pbox;
int nbox;
int xoff, yoff;
int partX1, partX2, partY1, partY2;
if (pExaScr->swappedOut ||
pDrawable->width > pExaScr->info->card.maxX ||
pDrawable->height > pExaScr->info->card.maxY ||
!(pPixmap = exaGetOffscreenPixmap (pDrawable, &xoff, &yoff)) ||
!(*pExaScr->info->accel.PrepareSolid) (pPixmap, GXcopy, pm, fg))
{
EXA_FALLBACK(("to 0x%lx\n", (long)pDrawable));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
fg = fbReplicatePixel (fg, pDrawable->bitsPerPixel);
fbSolidBoxClipped (pDrawable, pClip, x1, y1, x2, y2,
fbAnd (GXcopy, fg, pm),
fbXor (GXcopy, fg, pm));
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
return;
}
for (nbox = REGION_NUM_RECTS(pClip), pbox = REGION_RECTS(pClip);
nbox--;
pbox++)
{
partX1 = pbox->x1;
if (partX1 < x1)
partX1 = x1;
partX2 = pbox->x2;
if (partX2 > x2)
partX2 = x2;
if (partX2 <= partX1)
continue;
partY1 = pbox->y1;
if (partY1 < y1)
partY1 = y1;
partY2 = pbox->y2;
if (partY2 > y2)
partY2 = y2;
if (partY2 <= partY1)
continue;
(*pExaScr->info->accel.Solid) (pPixmap,
partX1 + xoff, partY1 + yoff,
partX2 + xoff, partY2 + yoff);
}
(*pExaScr->info->accel.DoneSolid) (pPixmap);
exaDrawableDirty (pDrawable);
exaMarkSync(pDrawable->pScreen);
}
static void
exaImageGlyphBlt (DrawablePtr pDrawable,
GCPtr pGC,
int x,
int y,
unsigned int nglyph,
CharInfoPtr *ppciInit,
pointer pglyphBase)
{
FbGCPrivPtr pPriv = fbGetGCPrivate(pGC);
CharInfoPtr *ppci;
CharInfoPtr pci;
unsigned char *pglyph; /* pointer bits in glyph */
int gWidth, gHeight; /* width and height of glyph */
FbStride gStride; /* stride of glyph */
Bool opaque;
int n;
int gx, gy;
void (*glyph) (FbBits *,
FbStride,
int,
FbStip *,
FbBits,
int,
int);
FbBits *dst;
FbStride dstStride;
int dstBpp;
int dstXoff, dstYoff;
FbBits depthMask;
depthMask = FbFullMask(pDrawable->depth);
if ((pGC->planemask & depthMask) != depthMask)
{
ExaCheckImageGlyphBlt(pDrawable, pGC, x, y, nglyph, ppciInit, pglyphBase);
return;
}
glyph = NULL;
fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
switch (dstBpp) {
case 8: glyph = fbGlyph8; break;
case 16: glyph = fbGlyph16; break;
case 24: glyph = fbGlyph24; break;
case 32: glyph = fbGlyph32; break;
}
x += pDrawable->x;
y += pDrawable->y;
if (TERMINALFONT (pGC->font) && !glyph)
{
opaque = TRUE;
}
else
{
int xBack, widthBack;
int yBack, heightBack;
ppci = ppciInit;
n = nglyph;
widthBack = 0;
while (n--)
widthBack += (*ppci++)->metrics.characterWidth;
xBack = x;
if (widthBack < 0)
{
xBack += widthBack;
widthBack = -widthBack;
}
yBack = y - FONTASCENT(pGC->font);
heightBack = FONTASCENT(pGC->font) + FONTDESCENT(pGC->font);
exaSolidBoxClipped (pDrawable,
fbGetCompositeClip(pGC),
pGC->planemask,
pGC->bgPixel,
xBack,
yBack,
xBack + widthBack,
yBack + heightBack);
opaque = FALSE;
}
EXA_FALLBACK(("to 0x%lx\n", (long)pDrawable));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
ppci = ppciInit;
while (nglyph--)
{
pci = *ppci++;
pglyph = FONTGLYPHBITS(pglyphBase, pci);
gWidth = GLYPHWIDTHPIXELS(pci);
gHeight = GLYPHHEIGHTPIXELS(pci);
if (gWidth && gHeight)
{
gx = x + pci->metrics.leftSideBearing;
gy = y - pci->metrics.ascent;
if (glyph && gWidth <= sizeof (FbStip) * 8 &&
fbGlyphIn (fbGetCompositeClip(pGC), gx, gy, gWidth, gHeight))
{
(*glyph) (dst + (gy + dstYoff) * dstStride,
dstStride,
dstBpp,
(FbStip *) pglyph,
pPriv->fg,
gx + dstXoff,
gHeight);
}
else
{
gStride = GLYPHWIDTHBYTESPADDED(pci) / sizeof (FbStip);
fbPutXYImage (pDrawable,
fbGetCompositeClip(pGC),
pPriv->fg,
pPriv->bg,
pPriv->pm,
GXcopy,
opaque,
gx,
gy,
gWidth, gHeight,
(FbStip *) pglyph,
gStride,
0);
}
}
x += pci->metrics.characterWidth;
}
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
}
const GCOps exaOps = {
exaFillSpans,
ExaCheckSetSpans,
ExaCheckPutImage,
exaCopyArea,
ExaCheckCopyPlane,
ExaCheckPolyPoint,
ExaCheckPolylines,
ExaCheckPolySegment,
miPolyRectangle,
ExaCheckPolyArc,
miFillPolygon,
exaPolyFillRect,
miPolyFillArc,
miPolyText8,
miPolyText16,
miImageText8,
miImageText16,
exaImageGlyphBlt,
ExaCheckPolyGlyphBlt,
ExaCheckPushPixels,
#ifdef NEED_LINEHELPER
,NULL
#endif
};
void
exaCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
{
ExaScreenPriv (pWin->drawable.pScreen);
RegionRec rgnDst;
int dx, dy;
PixmapPtr pPixmap = (*pWin->drawable.pScreen->GetWindowPixmap) (pWin);
if (pExaScr->swappedOut) {
ExaScreenPriv(pWin->drawable.pScreen);
pExaScr->SavedCopyWindow (pWin, ptOldOrg, prgnSrc);
exaDrawableDirty (&pWin->drawable);
return;
}
dx = ptOldOrg.x - pWin->drawable.x;
dy = ptOldOrg.y - pWin->drawable.y;
REGION_TRANSLATE(pWin->drawable.pScreen, prgnSrc, -dx, -dy);
REGION_INIT (pWin->drawable.pScreen, &rgnDst, NullBox, 0);
REGION_INTERSECT(pWin->drawable.pScreen, &rgnDst, &pWin->borderClip, prgnSrc);
#ifdef COMPOSITE
if (pPixmap->screen_x || pPixmap->screen_y)
REGION_TRANSLATE (pWin->drawable.pScreen, &rgnDst,
-pPixmap->screen_x, -pPixmap->screen_y);
#endif
fbCopyRegion (&pPixmap->drawable, &pPixmap->drawable,
NULL,
&rgnDst, dx, dy, exaCopyNtoN, 0, NULL);
REGION_UNINIT(pWin->drawable.pScreen, &rgnDst);
}
static void
exaFillRegionSolid (DrawablePtr pDrawable,
RegionPtr pRegion,
Pixel pixel)
{
ExaScreenPriv(pDrawable->pScreen);
PixmapPtr pPixmap;
int xoff, yoff;
if (pDrawable->width <= pExaScr->info->card.maxX &&
pDrawable->height <= pExaScr->info->card.maxY &&
(pPixmap = exaGetOffscreenPixmap (pDrawable, &xoff, &yoff)) &&
(*pExaScr->info->accel.PrepareSolid) (pPixmap, GXcopy, FB_ALLONES, pixel))
{
int nbox = REGION_NUM_RECTS (pRegion);
BoxPtr pBox = REGION_RECTS (pRegion);
while (nbox--)
{
(*pExaScr->info->accel.Solid) (pPixmap,
pBox->x1 + xoff, pBox->y1 + yoff,
pBox->x2 + xoff, pBox->y2 + yoff);
pBox++;
}
(*pExaScr->info->accel.DoneSolid) (pPixmap);
exaMarkSync(pDrawable->pScreen);
exaDrawableDirty (pDrawable);
}
else
{
EXA_FALLBACK(("to 0x%lx\n", (long)pDrawable));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
fbFillRegionSolid (pDrawable, pRegion, 0,
fbReplicatePixel (pixel, pDrawable->bitsPerPixel));
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
}
}
/* Try to do an accelerated tile of the pTile into pRegion of pDrawable.
* Based on fbFillRegionTiled(), fbTile().
*/
static void
exaFillRegionTiled (DrawablePtr pDrawable,
RegionPtr pRegion,
PixmapPtr pTile)
{
ExaScreenPriv(pDrawable->pScreen);
PixmapPtr pPixmap;
int xoff, yoff;
int tileWidth, tileHeight;
tileWidth = pTile->drawable.width;
tileHeight = pTile->drawable.height;
if (pDrawable->width > pExaScr->info->card.maxX ||
pDrawable->height > pExaScr->info->card.maxY ||
tileWidth > pExaScr->info->card.maxX ||
tileHeight > pExaScr->info->card.maxY)
{
goto fallback;
}
/* If we're filling with a solid color, grab it out and go to
* FillRegionSolid, saving numerous copies.
*/
if (tileWidth == 1 && tileHeight == 1) {
CARD32 pixel;
exaDrawableUseMemory(&pTile->drawable);
exaPrepareAccess(&pTile->drawable, EXA_PREPARE_SRC);
switch (pTile->drawable.bitsPerPixel) {
case 8:
pixel = *(CARD8 *)(pTile->devPrivate.ptr);
break;
case 16:
pixel = *(CARD16 *)(pTile->devPrivate.ptr);
break;
case 32:
pixel = *(CARD32 *)(pTile->devPrivate.ptr);
break;
default:
exaFinishAccess(&pTile->drawable, EXA_PREPARE_SRC);
goto fallback;
}
exaFinishAccess(&pTile->drawable, EXA_PREPARE_SRC);
exaFillRegionSolid(pDrawable, pRegion, pixel);
return;
}
pPixmap = exaGetOffscreenPixmap (pDrawable, &xoff, &yoff);
if (!pPixmap)
goto fallback;
exaPixmapUseScreen(pTile);
if (!exaPixmapIsOffscreen(pTile))
goto fallback;
if ((*pExaScr->info->accel.PrepareCopy) (pTile, pPixmap, 0, 0, GXcopy,
FB_ALLONES))
{
int nbox = REGION_NUM_RECTS (pRegion);
BoxPtr pBox = REGION_RECTS (pRegion);
while (nbox--)
{
int height = pBox->y2 - pBox->y1;
int dstY = pBox->y1;
int tileY;
tileY = (dstY - pDrawable->y) % tileHeight;
while (height > 0) {
int width = pBox->x2 - pBox->x1;
int dstX = pBox->x1;
int tileX;
int h = tileHeight - tileY;
if (h > height)
h = height;
height -= h;
tileX = (dstX - pDrawable->x) % tileWidth;
while (width > 0) {
int w = tileWidth - tileX;
if (w > width)
w = width;
width -= w;
(*pExaScr->info->accel.Copy) (pPixmap,
tileX, tileY,
dstX + xoff, dstY + yoff,
w, h);
dstX += w;
tileX = 0;
}
dstY += h;
tileY = 0;
}
pBox++;
}
(*pExaScr->info->accel.DoneCopy) (pPixmap);
exaMarkSync(pDrawable->pScreen);
exaDrawableDirty (pDrawable);
return;
}
fallback:
EXA_FALLBACK(("from 0x%lx to 0x%lx\n", (long)pTile, (long)pDrawable));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
exaPrepareAccess ((DrawablePtr)pTile, EXA_PREPARE_SRC);
fbFillRegionTiled (pDrawable, pRegion, pTile);
exaFinishAccess ((DrawablePtr)pTile, EXA_PREPARE_SRC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
}
void
exaPaintWindow(WindowPtr pWin, RegionPtr pRegion, int what)
{
ExaScreenPriv (pWin->drawable.pScreen);
if (!REGION_NUM_RECTS(pRegion))
return;
if (!pExaScr->swappedOut) {
switch (what) {
case PW_BACKGROUND:
switch (pWin->backgroundState) {
case None:
return;
case ParentRelative:
do {
pWin = pWin->parent;
} while (pWin->backgroundState == ParentRelative);
(*pWin->drawable.pScreen->PaintWindowBackground)(pWin, pRegion,
what);
return;
case BackgroundPixel:
exaFillRegionSolid((DrawablePtr)pWin, pRegion, pWin->background.pixel);
return;
case BackgroundPixmap:
exaFillRegionTiled((DrawablePtr)pWin, pRegion, pWin->background.pixmap);
return;
}
break;
case PW_BORDER:
if (pWin->borderIsPixel) {
exaFillRegionSolid((DrawablePtr)pWin, pRegion, pWin->border.pixel);
return;
} else {
exaFillRegionTiled((DrawablePtr)pWin, pRegion, pWin->border.pixmap);
return;
}
break;
}
}
ExaCheckPaintWindow (pWin, pRegion, what);
}
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