Bool
XAACreateGC(GCPtr pGC)
{
ScreenPtr pScreen = pGC->pScreen;
XAAGCPtr pGCPriv = (XAAGCPtr)dixLookupPrivate(&pGC->devPrivates,
XAAGetGCKey());
Bool ret;
XAA_SCREEN_PROLOGUE(pScreen,CreateGC);
if((ret = (*pScreen->CreateGC)(pGC))) {
pGCPriv->wrapOps = NULL;
pGCPriv->wrapFuncs = pGC->funcs;
pGCPriv->XAAOps = &XAAFallbackOps;
pGCPriv->flags = 0;
pGCPriv->DashLength = 0;
pGCPriv->DashPattern = NULL;
pGCPriv->changes = 0;
/* initialize any other private fields here */
pGC->funcs = &XAAGCFuncs;
}
XAA_SCREEN_EPILOGUE(pScreen,CreateGC,XAACreateGC);
return ret;
}
Bool
XAACreateGC(GCPtr pGC)
{
ScreenPtr pScreen = pGC->pScreen;
XAAGCPtr pGCPriv = (XAAGCPtr) dixLookupPrivate(&pGC->devPrivates,
XAAGetGCKey());
Bool ret;
XAA_SCREEN_PROLOGUE(pScreen, CreateGC);
if ((ret = (*pScreen->CreateGC) (pGC))) {
pGCPriv->wrapOps = NULL;
pGCPriv->wrapFuncs = pGC->funcs;
pGCPriv->XAAOps = &XAAFallbackOps;
pGC->funcs = &XAAGCFuncs;
}
XAA_SCREEN_EPILOGUE(pScreen, CreateGC, XAACreateGC);
return ret;
}
void
XAAValidatePolylines(GCPtr pGC, unsigned long changes, DrawablePtr pDraw)
{
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
XAAGCPtr pGCPriv = (XAAGCPtr) dixLookupPrivate(&pGC->devPrivates,
XAAGetGCKey());
if (pGC->lineStyle == LineSolid)
changes &= ~GCDashList;
if (!changes)
return;
pGC->ops->PolySegment = XAAFallbackOps.PolySegment;
pGC->ops->Polylines = XAAFallbackOps.Polylines;
pGC->ops->PolyRectangle = XAAFallbackOps.PolyRectangle;
pGC->ops->PolyArc = XAAFallbackOps.PolyArc;
if ((pGC->ops->FillSpans != XAAFallbackOps.FillSpans) &&
(pGC->lineWidth > 0)) {
pGC->ops->PolyArc = miPolyArc;
pGC->ops->PolySegment = miPolySegment;
pGC->ops->PolyRectangle = miPolyRectangle;
if (pGC->lineStyle == LineSolid)
pGC->ops->Polylines = miWideLine;
else
pGC->ops->Polylines = miWideDash;
}
if ((pGC->lineWidth == 0) && (pGC->fillStyle == FillSolid)) {
if (pGC->lineStyle == LineSolid) {
if (infoRec->PolyRectangleThinSolid &&
CHECK_PLANEMASK(pGC, infoRec->PolyRectangleThinSolidFlags) &&
CHECK_ROP(pGC, infoRec->PolyRectangleThinSolidFlags) &&
CHECK_ROPSRC(pGC, infoRec->PolyRectangleThinSolidFlags) &&
CHECK_FG(pGC, infoRec->PolyRectangleThinSolidFlags)) {
pGC->ops->PolyRectangle = infoRec->PolyRectangleThinSolid;
}
if (infoRec->PolySegmentThinSolid &&
CHECK_PLANEMASK(pGC, infoRec->PolySegmentThinSolidFlags) &&
CHECK_ROP(pGC, infoRec->PolySegmentThinSolidFlags) &&
CHECK_ROPSRC(pGC, infoRec->PolySegmentThinSolidFlags) &&
CHECK_FG(pGC, infoRec->PolySegmentThinSolidFlags)) {
pGC->ops->PolySegment = infoRec->PolySegmentThinSolid;
}
if (infoRec->PolylinesThinSolid &&
CHECK_PLANEMASK(pGC, infoRec->PolylinesThinSolidFlags) &&
CHECK_ROP(pGC, infoRec->PolylinesThinSolidFlags) &&
CHECK_ROPSRC(pGC, infoRec->PolylinesThinSolidFlags) &&
CHECK_FG(pGC, infoRec->PolylinesThinSolidFlags)) {
pGC->ops->Polylines = infoRec->PolylinesThinSolid;
}
}
else if ((pGC->lineStyle == LineOnOffDash) && pGCPriv->DashPattern) {
if (infoRec->PolySegmentThinDashed &&
!(infoRec->PolySegmentThinDashedFlags & NO_TRANSPARENCY) &&
((pGC->alu == GXcopy) || !(infoRec->PolySegmentThinDashedFlags &
TRANSPARENCY_GXCOPY_ONLY)) &&
CHECK_PLANEMASK(pGC, infoRec->PolySegmentThinDashedFlags) &&
CHECK_ROP(pGC, infoRec->PolySegmentThinDashedFlags) &&
CHECK_ROPSRC(pGC, infoRec->PolySegmentThinDashedFlags) &&
CHECK_FG(pGC, infoRec->PolySegmentThinDashedFlags)) {
pGC->ops->PolySegment = infoRec->PolySegmentThinDashed;
}
if (infoRec->PolylinesThinDashed &&
!(infoRec->PolylinesThinDashedFlags & NO_TRANSPARENCY) &&
((pGC->alu == GXcopy) || !(infoRec->PolylinesThinDashedFlags &
TRANSPARENCY_GXCOPY_ONLY)) &&
CHECK_PLANEMASK(pGC, infoRec->PolylinesThinDashedFlags) &&
CHECK_ROP(pGC, infoRec->PolylinesThinDashedFlags) &&
CHECK_ROPSRC(pGC, infoRec->PolylinesThinDashedFlags) &&
CHECK_FG(pGC, infoRec->PolylinesThinDashedFlags)) {
pGC->ops->Polylines = infoRec->PolylinesThinDashed;
}
if (pGC->ops->Polylines != XAAFallbackOps.Polylines)
pGC->ops->PolyRectangle = miPolyRectangle;
}
else if (pGCPriv->DashPattern && (pGC->depth != 32)) {
/* LineDoubleDash */
if (infoRec->PolySegmentThinDashed &&
!(infoRec->PolySegmentThinDashedFlags & TRANSPARENCY_ONLY) &&
CHECK_PLANEMASK(pGC, infoRec->PolySegmentThinDashedFlags) &&
CHECK_ROP(pGC, infoRec->PolySegmentThinDashedFlags) &&
CHECK_ROPSRC(pGC, infoRec->PolySegmentThinDashedFlags) &&
CHECK_COLORS(pGC, infoRec->PolySegmentThinDashedFlags)) {
pGC->ops->PolySegment = infoRec->PolySegmentThinDashed;
}
if (infoRec->PolylinesThinDashed &&
!(infoRec->PolylinesThinDashedFlags & TRANSPARENCY_ONLY) &&
CHECK_PLANEMASK(pGC, infoRec->PolylinesThinDashedFlags) &&
CHECK_ROP(pGC, infoRec->PolylinesThinDashedFlags) &&
CHECK_ROPSRC(pGC, infoRec->PolylinesThinDashedFlags) &&
CHECK_COLORS(pGC, infoRec->PolylinesThinDashedFlags)) {
pGC->ops->Polylines = infoRec->PolylinesThinDashed;
}
if (pGC->ops->Polylines != XAAFallbackOps.Polylines)
pGC->ops->PolyRectangle = miPolyRectangle;
}
}
if (infoRec->PolylinesWideSolid &&
(pGC->lineWidth > 0) &&
(pGC->fillStyle == FillSolid) &&
(pGC->lineStyle == LineSolid) &&
CHECK_PLANEMASK(pGC, infoRec->PolylinesWideSolidFlags) &&
CHECK_ROP(pGC, infoRec->PolylinesWideSolidFlags) &&
CHECK_ROPSRC(pGC, infoRec->PolylinesWideSolidFlags) &&
CHECK_FG(pGC, infoRec->PolylinesWideSolidFlags)) {
pGC->ops->Polylines = infoRec->PolylinesWideSolid;
}
}
void
XAAComputeDash(GCPtr pGC)
{
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
XAAGCPtr pGCPriv = (XAAGCPtr)dixLookupPrivate(&pGC->devPrivates,
XAAGetGCKey());
Bool EvenDash = (pGC->numInDashList & 0x01) ? FALSE : TRUE;
int PatternLength = 0;
unsigned char* DashPtr = (unsigned char*)pGC->dash;
CARD32 *ptr;
int count = pGC->numInDashList;
int shift, value, direction;
Bool set;
if(pGCPriv->DashPattern)
xfree(pGCPriv->DashPattern);
pGCPriv->DashPattern = NULL;
pGCPriv->DashLength = 0;
while(count--)
PatternLength += *(DashPtr++);
if(!EvenDash)
PatternLength <<= 1;
if(PatternLength > infoRec->DashPatternMaxLength)
return;
if((infoRec->DashedLineFlags & LINE_PATTERN_POWER_OF_2_ONLY) &&
(PatternLength & (PatternLength - 1)))
return;
pGCPriv->DashPattern = xcalloc((PatternLength + 31) >> 5, 4);
if(!pGCPriv->DashPattern) return;
pGCPriv->DashLength = PatternLength;
if(infoRec->DashedLineFlags & (LINE_PATTERN_LSBFIRST_MSBJUSTIFIED |
LINE_PATTERN_LSBFIRST_LSBJUSTIFIED)) {
direction = 1;
set = TRUE;
DashPtr = (unsigned char*)pGC->dash;
} else {
direction = -1;
set = FALSE;
DashPtr = (unsigned char*)pGC->dash + pGC->numInDashList - 1;
}
if(infoRec->DashedLineFlags & (LINE_PATTERN_LSBFIRST_MSBJUSTIFIED |
LINE_PATTERN_MSBFIRST_MSBJUSTIFIED))
shift = 32 - (PatternLength & 31);
else
shift = 0;
ptr = (CARD32*)(pGCPriv->DashPattern);
CONCATENATE:
count = pGC->numInDashList;
while(count--) {
value = *DashPtr;
DashPtr += direction;
while(value) {
if(value < (32 - shift)) {
if(set) *ptr |= XAAShiftMasks[value] << shift;
shift += value;
break;
} else {
if(set) *ptr |= ~0L << shift;
value -= (32 - shift);
shift = 0;
ptr++;
}
}
if(set) set = FALSE;
else set = TRUE;
}
if(!EvenDash) {
EvenDash = TRUE;
if(infoRec->DashedLineFlags & (LINE_PATTERN_LSBFIRST_MSBJUSTIFIED |
LINE_PATTERN_LSBFIRST_LSBJUSTIFIED))
DashPtr = (unsigned char*)pGC->dash;
else
DashPtr = (unsigned char*)pGC->dash + pGC->numInDashList;
goto CONCATENATE;
}
}
