diff options
Diffstat (limited to 'cfb/cfbgetsp.c')
| -rw-r--r-- | cfb/cfbgetsp.c | 61 |
1 files changed, 52 insertions, 9 deletions
diff --git a/cfb/cfbgetsp.c b/cfb/cfbgetsp.c index a2c9966df..e5c55f389 100644 --- a/cfb/cfbgetsp.c +++ b/cfb/cfbgetsp.c @@ -45,6 +45,7 @@ ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ******************************************************************/ +/* $XFree86: xc/programs/Xserver/cfb/cfbgetsp.c,v 3.9 2001/12/14 19:59:22 dawes Exp $ */ #include "X.h" #include "Xmd.h" @@ -82,12 +83,18 @@ cfbGetSpans(pDrawable, wMax, ppt, pwidth, nspans, pchardstStart) int widthSrc; /* width of pixmap in bytes */ register DDXPointPtr pptLast; /* one past last point to get */ int xEnd; /* last pixel to copy from */ + int nl, srcBit; + int w; + PixelGroup *pdstNext; +#if PSZ == 24 + register char *psrcb, *pdstb; + register int xIndex = 0; +#else register int nstart; int nend; PixelGroup startmask, endmask; - int nlMiddle, nl, srcBit; - int w; - PixelGroup *pdstNext; + int nlMiddle; +#endif switch (pDrawable->bitsPerPixel) { case 1: @@ -99,35 +106,70 @@ cfbGetSpans(pDrawable, wMax, ppt, pwidth, nspans, pchardstStart) FatalError("cfbGetSpans: invalid depth\n"); } + /* + * XFree86 DDX empties the root borderClip when the VT is + * switched away; this checks for that case + */ + if (!cfbDrawableEnabled(pDrawable)) + return; cfbGetLongWidthAndPointer (pDrawable, widthSrc, psrcBase) #ifdef PIXEL_ADDR +# if PSZ != 24 if ((nspans == 1) && (*pwidth == 1)) { tmpSrc = *((PixelType *)(psrcBase + (ppt->y * widthSrc)) + ppt->x); #if BITMAP_BIT_ORDER == MSBFirst - tmpSrc <<= (sizeof (unsigned long) - sizeof (PixelType)) * 8; + tmpSrc <<= (sizeof (CfbBits) - sizeof (PixelType)) * 8; #endif *pdstStart = tmpSrc; return; } +# endif /* PSZ != 24 */ #endif pdst = pdstStart; pptLast = ppt + nspans; while(ppt < pptLast) { +#if PSZ == 24 + xEnd = min(ppt->x + *pwidth, widthSrc * sizeof(CfbBits) / 3); + w = xEnd - ppt->x; + psrc = psrcBase + ppt->y * widthSrc; + srcBit = ppt->x; + psrcb = (char *)psrc + (ppt->x * 3); + xIndex = 0; + pdstb = (char *)pdst; + pdstNext = pdst + ((w * 3 + 3) >> 2); +#else xEnd = min(ppt->x + *pwidth, widthSrc << PWSH); - psrc = psrcBase + ppt->y * widthSrc + (ppt->x >> PWSH); w = xEnd - ppt->x; + psrc = psrcBase + ppt->y * widthSrc + (ppt->x >> PWSH); srcBit = ppt->x & PIM; pdstNext = pdst + ((w + PPW - 1) >> PWSH); +#endif +#if PSZ == 24 + if (w < 0) + FatalError("cfb24GetSpans: Internal error (w < 0)\n"); + nl = w; + while (nl--){ + psrc = (PixelGroup *)((unsigned long)psrcb & ~0x03); + getbits24(psrc, tmpSrc, srcBit); + pdst = (PixelGroup *)((unsigned long)pdstb & ~0x03); + putbits24(tmpSrc, nstart, PPW, pdst, ~((CfbBits)0), xIndex); + srcBit++; + psrcb += 3; + xIndex++; + pdstb += 3; + } + pdst = pdstNext; +#else /* PSZ == 24 */ if (srcBit + w <= PPW) { getbits(psrc, srcBit, w, tmpSrc); - putbits(tmpSrc, 0, w, pdst, ~((unsigned long)0)); + putbits(tmpSrc, 0, w, pdst, ~((CfbBits)0)); pdst++; } else @@ -138,7 +180,7 @@ cfbGetSpans(pDrawable, wMax, ppt, pwidth, nspans, pchardstStart) { nstart = PPW - srcBit; getbits(psrc, srcBit, nstart, tmpSrc); - putbits(tmpSrc, 0, nstart, pdst, ~((unsigned long)0)); + putbits(tmpSrc, 0, nstart, pdst, ~((CfbBits)0)); if(srcBit + nstart >= PPW) psrc++; } @@ -146,7 +188,7 @@ cfbGetSpans(pDrawable, wMax, ppt, pwidth, nspans, pchardstStart) while (nl--) { tmpSrc = *psrc; - putbits(tmpSrc, nstart, PPW, pdst, ~((unsigned long)0)); + putbits(tmpSrc, nstart, PPW, pdst, ~((CfbBits)0)); psrc++; pdst++; } @@ -154,10 +196,11 @@ cfbGetSpans(pDrawable, wMax, ppt, pwidth, nspans, pchardstStart) { nend = xEnd & PIM; getbits(psrc, 0, nend, tmpSrc); - putbits(tmpSrc, nstart, nend, pdst, ~((unsigned long)0)); + putbits(tmpSrc, nstart, nend, pdst, ~((CfbBits)0)); } pdst = pdstNext; } +#endif /* PSZ == 24 */ ppt++; pwidth++; } |