static void SiSSubsequentSolidTwoPointLine(ScrnInfoPtr pScrn,
int x1, int y1, int x2, int y2, int flags)
{
SISPtr pSiS = SISPTR(pScrn);
int op ;
int major, minor, err,K1,K2, tmp;
op = sisCMDLINE | sisSRCFG;
if ((flags & OMIT_LAST))
op |= sisLASTPIX;
if (pSiS->ClipEnabled)
op |= sisCLIPINTRN | sisCLIPENABL;
if ((major = x2 - x1) <= 0) {
major = -major;
} else
op |= sisXINCREASE;
if ((minor = y2 - y1) <= 0) {
minor = -minor;
} else
op |= sisYINCREASE;
if (minor >= major) {
tmp = minor;
minor = major;
major = tmp;
} else
op |= sisXMAJOR;
K1 = (minor - major)<<1;
K2 = minor<<1;
err = (minor<<1) - major;
sisBLTSync;
sisSETXStart(x1);
sisSETYStart(y1);
sisSETLineSteps((short)K1,(short)K2);
sisSETLineErrorTerm((short)err);
sisSETLineMajorCount((short)major);
sisSETCMD(op);
}
static void
SiSSubsequentScreenToScreenCopy(ScrnInfoPtr pScrn, int x1, int y1, int x2,
int y2, int w, int h)
{
SISPtr pSiS = SISPTR(pScrn);
int srcaddr, destaddr, op;
op = sisCMDBLT | sisSRCVIDEO;
if(pSiS->Ydirection == -1) {
op |= sisBOTTOM2TOP;
srcaddr = (y1 + h - 1) * pSiS->CurrentLayout.displayWidth;
destaddr = (y2 + h - 1) * pSiS->CurrentLayout.displayWidth;
} else {
op |= sisTOP2BOTTOM;
srcaddr = y1 * pSiS->CurrentLayout.displayWidth;
destaddr = y2 * pSiS->CurrentLayout.displayWidth;
}
if(pSiS->Xdirection == -1) {
op |= sisRIGHT2LEFT;
srcaddr += x1 + w - 1;
destaddr += x2 + w - 1;
} else {
op |= sisLEFT2RIGHT;
srcaddr += x1;
destaddr += x2;
}
if(pSiS->ClipEnabled)
op |= sisCLIPINTRN | sisCLIPENABL;
srcaddr *= (pSiS->CurrentLayout.bitsPerPixel/8);
destaddr *= (pSiS->CurrentLayout.bitsPerPixel/8);
if(((pSiS->CurrentLayout.bitsPerPixel / 8) > 1) && (pSiS->Xdirection == -1)) {
srcaddr += (pSiS->CurrentLayout.bitsPerPixel/8)-1;
destaddr += (pSiS->CurrentLayout.bitsPerPixel/8)-1;
}
sisBLTSync;
sisSETSRCADDR(srcaddr);
sisSETDSTADDR(destaddr);
sisSETHEIGHTWIDTH(h-1, w * (pSiS->CurrentLayout.bitsPerPixel/8)-1);
sisSETCMD(op);
}
static void
SiSSubsequentMono8x8PatternFillRect(ScrnInfoPtr pScrn, int patternx,
int patterny, int x, int y, int w, int h)
{
SISPtr pSiS = SISPTR(pScrn);
int dstaddr;
register unsigned char *patternRegPtr;
register unsigned char *srcPatternRegPtr;
register unsigned int *patternRegPtrL;
int i, k;
unsigned short tmp;
int shift;
int op = sisCMDCOLEXP |
sisTOP2BOTTOM |
sisLEFT2RIGHT |
sisPATFG |
sisSRCBG;
if (pSiS->ClipEnabled)
op |= sisCLIPINTRN | sisCLIPENABL;
dstaddr = ( y * pSiS->CurrentLayout.displayWidth + x ) *
pSiS->CurrentLayout.bitsPerPixel / 8;
sisBLTSync;
patternRegPtr = sisSETPATREG();
srcPatternRegPtr = (unsigned char *)pSiS->sisPatternReg ;
shift = 8 - patternx ;
for ( i = 0, k = patterny ; i < 8 ; i++, k++ ) {
tmp = srcPatternRegPtr[k]<<8 | srcPatternRegPtr[k] ;
tmp >>= shift ;
patternRegPtr[i] = tmp & 0xff;
}
patternRegPtrL = (unsigned int *)sisSETPATREG();
for ( i = 2 ; i < 16 /* sisPatternHeight */; ) {
patternRegPtrL[i++] = patternRegPtrL[0];
patternRegPtrL[i++] = patternRegPtrL[1];
}
sisSETDSTADDR(dstaddr);
sisSETHEIGHTWIDTH(h-1, w*(pSiS->CurrentLayout.bitsPerPixel/8)-1);
sisSETCMD(op);
}
static void
SiSSubsequentFillRectSolid(ScrnInfoPtr pScrn, int x, int y, int w, int h)
{
SISPtr pSiS = SISPTR(pScrn);
int destaddr, op;
destaddr = y * pSiS->CurrentLayout.displayWidth + x;
op = sisCMDBLT | sisSRCBG | sisTOP2BOTTOM | sisLEFT2RIGHT;
if(pSiS->ClipEnabled)
op |= sisCLIPINTRN | sisCLIPENABL;
destaddr *= (pSiS->CurrentLayout.bitsPerPixel / 8);
sisBLTSync;
sisSETHEIGHTWIDTH(h-1, w * (pSiS->CurrentLayout.bitsPerPixel/8)-1);
sisSETDSTADDR(destaddr);
sisSETCMD(op);
}
