void
uxa_check_poly_arc(DrawablePtr pDrawable, GCPtr pGC, int narcs, xArc * pArcs)
{
ScreenPtr screen = pDrawable->pScreen;
UXA_FALLBACK(("to %p (%c)\n", pDrawable,
uxa_drawable_location(pDrawable)));
/* Disable this as fbPolyArc can call miZeroPolyArc which in turn
* can call accelerated functions, that as yet, haven't been notified
* with uxa_finish_access().
*/
#if 0
if (pGC->lineWidth == 0) {
if (uxa_prepare_access(pDrawable, UXA_ACCESS_RW)) {
if (uxa_prepare_access_gc(pGC)) {
fbPolyArc(pDrawable, pGC, narcs, pArcs);
uxa_finish_access_gc(pGC);
}
uxa_finish_access(pDrawable, UXA_ACCESS_RW);
}
return;
}
#endif
miPolyArc(pDrawable, pGC, narcs, pArcs);
}
void
xglPolyArc (DrawablePtr pDrawable,
GCPtr pGC,
int narcs,
xArc *pArcs)
{
if (pGC->lineWidth == 0)
{
XGL_GC_PRIV (pGC);
XGL_GC_FILL_OP_FALLBACK_PROLOGUE (pDrawable);
(*pGC->ops->PolyArc) (pDrawable, pGC, narcs, pArcs);
XGL_GC_OP_FALLBACK_EPILOGUE (pDrawable);
} else
miPolyArc (pDrawable, pGC, narcs, pArcs);
}
void
fbPolyArc (DrawablePtr pDrawable,
GCPtr pGC,
int narcs,
xArc *parcs)
{
FbArc arc;
if (pGC->lineWidth == 0)
{
#ifndef FBNOPIXADDR
arc = 0;
if (pGC->lineStyle == LineSolid && pGC->fillStyle == FillSolid)
{
switch (pDrawable->bitsPerPixel)
{
case 8: arc = fbArc8; break;
case 16: arc = fbArc16; break;
#ifdef FB_24BIT
case 24: arc = fbArc24; break;
#endif
case 32: arc = fbArc32; break;
}
}
if (arc)
{
FbGCPrivPtr pPriv = fbGetGCPrivate (pGC);
FbBits *dst;
FbStride dstStride;
int dstBpp;
int dstXoff, dstYoff;
BoxRec box;
int x2, y2;
RegionPtr cclip;
cclip = fbGetCompositeClip (pGC);
fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
while (narcs--)
{
if (miCanZeroArc (parcs))
{
box.x1 = parcs->x + pDrawable->x;
box.y1 = parcs->y + pDrawable->y;
/*
* Because box.x2 and box.y2 get truncated to 16 bits, and the
* RECT_IN_REGION test treats the resulting number as a signed
* integer, the RECT_IN_REGION test alone can go the wrong way.
* This can result in a server crash because the rendering
* routines in this file deal directly with cpu addresses
* of pixels to be stored, and do not clip or otherwise check
* that all such addresses are within their respective pixmaps.
* So we only allow the RECT_IN_REGION test to be used for
* values that can be expressed correctly in a signed short.
*/
x2 = box.x1 + (int)parcs->width + 1;
box.x2 = x2;
y2 = box.y1 + (int)parcs->height + 1;
box.y2 = y2;
if ( (x2 <= SHRT_MAX) && (y2 <= SHRT_MAX) &&
(RECT_IN_REGION(pDrawable->pScreen, cclip, &box) == rgnIN) )
(*arc) (dst, dstStride, dstBpp,
parcs, pDrawable->x + dstXoff, pDrawable->y + dstYoff,
pPriv->and, pPriv->xor);
else
miZeroPolyArc(pDrawable, pGC, 1, parcs);
}
else
miPolyArc(pDrawable, pGC, 1, parcs);
parcs++;
}
}
else
#endif
miZeroPolyArc (pDrawable, pGC, narcs, parcs);
}
else
miPolyArc (pDrawable, pGC, narcs, parcs);
}