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EXA: Simplify exaGetPixmapFirstPixel using GetImage.

This commit is contained in:
Michel Dänzer 2009-08-04 23:23:21 +02:00
parent 842373104d
commit a6ce6c70cf
1 changed files with 24 additions and 45 deletions
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69
exa/exa_unaccel.c
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@ -492,58 +492,37 @@ ExaCheckAddTraps (PicturePtr pPicture,
/**
* 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.
*
* XXX This really belongs in fb, so it can be aware of tiling and etc.
*/
CARD32
exaGetPixmapFirstPixel (PixmapPtr pPixmap)
{
CARD32 pixel;
void *fb;
Bool need_finish = FALSE;
BoxRec box;
RegionRec migration;
ExaPixmapPriv (pPixmap);
Bool sys_valid = pExaPixmap->pDamage &&
!miPointInRegion(&pExaPixmap->validSys, 0, 0, &box);
Bool damaged = pExaPixmap->pDamage &&
miPointInRegion(DamageRegion(pExaPixmap->pDamage), 0, 0, &box);
Bool offscreen = exaPixmapIsOffscreen(pPixmap);
fb = pExaPixmap->sys_ptr;
/* Try to avoid framebuffer readbacks */
if ((!offscreen && !sys_valid && !damaged) ||
(offscreen && (!sys_valid || damaged)))
{
box.x1 = 0;
box.y1 = 0;
box.x2 = 1;
box.y2 = 1;
REGION_INIT(pScreen, &migration, &box, 1);
need_finish = TRUE;
exaPrepareAccessReg(&pPixmap->drawable, EXA_PREPARE_SRC, &migration);
fb = pPixmap->devPrivate.ptr;
}
switch (pPixmap->drawable.bitsPerPixel) {
case 32:
pixel = *(CARD32 *)fb;
break;
{
CARD32 pixel;
pPixmap->drawable.pScreen->GetImage(&pPixmap->drawable, 0, 0, 1, 1,
ZPixmap, ~0, (char*)&pixel);
return pixel;
}
case 16:
pixel = *(CARD16 *)fb;
break;
{
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:
pixel = *(CARD8 *)fb;
break;
FatalError("%s called for invalid bpp %d\n", __func__,
pPixmap->drawable.bitsPerPixel);
}
if (need_finish) {
exaFinishAccess(&pPixmap->drawable, EXA_PREPARE_SRC);
REGION_UNINIT(pScreen, &migration);
}
return pixel;
}