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-rw-r--r--cfb/cfbrctstp8.c588
1 files changed, 588 insertions, 0 deletions
diff --git a/cfb/cfbrctstp8.c b/cfb/cfbrctstp8.c
new file mode 100644
index 000000000..9b9db7462
--- /dev/null
+++ b/cfb/cfbrctstp8.c
@@ -0,0 +1,588 @@
+/*
+ * Fill 32 bit stippled rectangles for 8 bit frame buffers
+ */
+/*
+
+Copyright 1989, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+Author: Keith Packard, MIT X Consortium
+
+*/
+
+/* $Xorg: cfbrctstp8.c,v 1.4 2001/02/09 02:04:38 xorgcvs Exp $ */
+
+#if PSZ == 8
+
+#include "X.h"
+#include "Xmd.h"
+#include "servermd.h"
+#include "gcstruct.h"
+#include "window.h"
+#include "pixmapstr.h"
+#include "scrnintstr.h"
+#include "windowstr.h"
+
+#include "cfb.h"
+#include "cfbmskbits.h"
+#include "cfb8bit.h"
+
+#define MFB_CONSTS_ONLY
+#include "maskbits.h"
+
+void
+cfb8FillRectOpaqueStippled32 (pDrawable, pGC, nBox, pBox)
+ DrawablePtr pDrawable;
+ GCPtr pGC;
+ int nBox; /* number of boxes to fill */
+ register BoxPtr pBox; /* pointer to list of boxes to fill */
+{
+ unsigned long *src;
+ int stippleHeight;
+
+ int nlwDst; /* width in longwords of the dest pixmap */
+ int w; /* width of current box */
+ register int h; /* height of current box */
+ unsigned long startmask;
+ unsigned long endmask; /* masks for reggedy bits at either end of line */
+ int nlwMiddle; /* number of longwords between sides of boxes */
+ register int nlw; /* loop version of nlwMiddle */
+ unsigned long *dstLine;
+ register unsigned long *dst; /* pointer to bits we're writing */
+ unsigned long *dstTmp;
+ int y; /* current scan line */
+
+ unsigned long *pbits;/* pointer to start of pixmap */
+ register unsigned long bits; /* bits from stipple */
+ int rot, lastStop, i;
+ register unsigned long xor, and;
+ cfbPrivGCPtr devPriv;
+ PixmapPtr stipple;
+ int wEnd;
+
+ devPriv = cfbGetGCPrivate(pGC);
+ stipple = devPriv->pRotatedPixmap;
+
+ cfb8CheckOpaqueStipple(pGC->alu, pGC->fgPixel, pGC->bgPixel, pGC->planemask);
+
+ stippleHeight = stipple->drawable.height;
+ src = (unsigned long *)stipple->devPrivate.ptr;
+
+ cfbGetLongWidthAndPointer (pDrawable, nlwDst, pbits)
+
+ while (nBox--)
+ {
+ w = pBox->x2 - pBox->x1;
+ h = pBox->y2 - pBox->y1;
+ y = pBox->y1;
+ dstLine = pbits + (pBox->y1 * nlwDst) + ((pBox->x1 & ~PIM) >> PWSH);
+ if (((pBox->x1 & PIM) + w) <= PPW)
+ {
+ maskpartialbits(pBox->x1, w, startmask);
+ nlwMiddle = 0;
+ endmask = 0;
+ }
+ else
+ {
+ maskbits (pBox->x1, w, startmask, endmask, nlwMiddle);
+ }
+ rot = (pBox->x1 & ((PGSZ-1) & ~PIM));
+ pBox++;
+ y = y % stippleHeight;
+ if (cfb8StippleRRop == GXcopy)
+ {
+ if (w < PGSZ*2)
+ {
+ while (h--)
+ {
+ bits = src[y];
+ y++;
+ if (y == stippleHeight)
+ y = 0;
+ if (rot)
+ RotBitsLeft(bits,rot);
+ dst = dstLine;
+ dstLine += nlwDst;
+ if (startmask)
+ {
+ *dst = *dst & ~startmask |
+ GetPixelGroup (bits) & startmask;
+ dst++;
+ RotBitsLeft (bits, PGSZB);
+ }
+ nlw = nlwMiddle;
+ while (nlw--)
+ {
+ *dst++ = GetPixelGroup(bits);
+ RotBitsLeft (bits, PGSZB);
+ }
+ if (endmask)
+ {
+ *dst = *dst & ~endmask |
+ GetPixelGroup (bits) & endmask;
+ }
+ }
+ }
+ else
+ {
+ wEnd = 7 - (nlwMiddle & 7);
+ nlwMiddle = (nlwMiddle >> 3) + 1;
+ while (h--)
+ {
+ bits = src[y];
+ y++;
+ if (y == stippleHeight)
+ y = 0;
+ if (rot != 0)
+ RotBitsLeft (bits, rot);
+ dstTmp = dstLine;
+ dstLine += nlwDst;
+ if (startmask)
+ {
+ *dstTmp = *dstTmp & ~startmask |
+ GetPixelGroup (bits) & startmask;
+ dstTmp++;
+ RotBitsLeft (bits, PGSZB);
+ }
+ w = 7 - wEnd;
+ while (w--)
+ {
+ nlw = nlwMiddle;
+ dst = dstTmp;
+ dstTmp++;
+ xor = GetPixelGroup (bits);
+ while (nlw--)
+ {
+ *dst = xor;
+ dst += 8;
+ }
+ NextBitGroup (bits);
+ }
+ nlwMiddle--;
+ w = wEnd + 1;
+ if (endmask)
+ {
+ dst = dstTmp + (nlwMiddle << 3);
+ *dst = (*dst & ~endmask) |
+ GetPixelGroup (bits) & endmask;
+ }
+ while (w--)
+ {
+ nlw = nlwMiddle;
+ dst = dstTmp;
+ dstTmp++;
+ xor = GetPixelGroup (bits);
+ while (nlw--)
+ {
+ *dst = xor;
+ dst += 8;
+ }
+ NextBitGroup (bits);
+ }
+ nlwMiddle++;
+ }
+ }
+ }
+ else
+ {
+ while (h--)
+ {
+ bits = src[y];
+ y++;
+ if (y == stippleHeight)
+ y = 0;
+ if (rot)
+ RotBitsLeft(bits,rot);
+ dst = dstLine;
+ dstLine += nlwDst;
+ if (startmask)
+ {
+ xor = GetBitGroup(bits);
+ *dst = MaskRRopPixels(*dst, xor, startmask);
+ dst++;
+ RotBitsLeft (bits, PGSZB);
+ }
+ nlw = nlwMiddle;
+ while (nlw--)
+ {
+ RRopBitGroup(dst, GetBitGroup(bits));
+ dst++;
+ RotBitsLeft (bits, PGSZB);
+ }
+ if (endmask)
+ {
+ xor = GetBitGroup(bits);
+ *dst = MaskRRopPixels(*dst, xor, endmask);
+ }
+ }
+ }
+ }
+}
+
+void
+cfb8FillRectTransparentStippled32 (pDrawable, pGC, nBox, pBox)
+ DrawablePtr pDrawable;
+ GCPtr pGC;
+ int nBox; /* number of boxes to fill */
+ BoxPtr pBox; /* pointer to list of boxes to fill */
+{
+ int x, y, w, h;
+ int nlwMiddle, nlwDst, nlwTmp;
+ unsigned long startmask, endmask;
+ register unsigned long *dst;
+ unsigned long *dstLine, *pbits, *dstTmp;
+ unsigned long *src;
+ register unsigned long xor;
+ register unsigned long bits, mask;
+ int rot;
+ int wEnd;
+ cfbPrivGCPtr devPriv;
+ PixmapPtr stipple;
+ int stippleHeight;
+ register int nlw;
+
+ devPriv = cfbGetGCPrivate(pGC);
+ stipple = devPriv->pRotatedPixmap;
+ src = (unsigned long *)stipple->devPrivate.ptr;
+ stippleHeight = stipple->drawable.height;
+
+ cfb8CheckStipple (pGC->alu, pGC->fgPixel, pGC->planemask);
+
+ cfbGetLongWidthAndPointer (pDrawable, nlwDst, pbits)
+
+ while (nBox--)
+ {
+ x = pBox->x1;
+ w = pBox->x2 - x;
+ if (((x & PIM) + w) <= PPW)
+ {
+ maskpartialbits(x, w, startmask);
+ endmask = 0;
+ nlwMiddle = 0;
+ }
+ else
+ {
+ maskbits (x, w, startmask, endmask, nlwMiddle);
+ }
+ rot = (x & ((PGSZ-1) & ~PIM));
+ y = pBox->y1;
+ dstLine = pbits + (y * nlwDst) + (x >> PWSH);
+ h = pBox->y2 - y;
+ pBox++;
+ y %= stippleHeight;
+ if (cfb8StippleRRop == GXcopy)
+ {
+ xor = devPriv->xor;
+ if (w < PGSZ*2)
+ {
+ while (h--)
+ {
+ bits = src[y];
+ y++;
+ if (y == stippleHeight)
+ y = 0;
+ if (rot != 0)
+ RotBitsLeft (bits, rot);
+ dst = dstLine;
+ dstLine += nlwDst;
+ if (startmask)
+ {
+ mask = cfb8PixelMasks[GetBitGroup(bits)];
+ *dst = (*dst & ~(mask & startmask)) |
+ (xor & (mask & startmask));
+ dst++;
+ RotBitsLeft (bits, PGSZB);
+ }
+ nlw = nlwMiddle;
+ while (nlw--)
+ {
+ WriteBitGroup (dst,xor,GetBitGroup(bits))
+ dst++;
+ RotBitsLeft (bits, PGSZB);
+ }
+ if (endmask)
+ {
+ mask = cfb8PixelMasks[GetBitGroup(bits)];
+ *dst = (*dst & ~(mask & endmask)) |
+ (xor & (mask & endmask));
+ }
+ }
+ }
+ else
+ {
+ wEnd = 7 - (nlwMiddle & 7);
+ nlwMiddle = (nlwMiddle >> 3) + 1;
+ while (h--)
+ {
+ bits = src[y];
+ y++;
+ if (y == stippleHeight)
+ y = 0;
+ if (rot != 0)
+ RotBitsLeft (bits, rot);
+ dstTmp = dstLine;
+ dstLine += nlwDst;
+ if (startmask)
+ {
+ mask = cfb8PixelMasks[GetBitGroup(bits)];
+ *dstTmp = (*dstTmp & ~(mask & startmask)) |
+ (xor & (mask & startmask));
+ dstTmp++;
+ RotBitsLeft (bits, PGSZB);
+ }
+ w = 7 - wEnd;
+ while (w--)
+ {
+ nlw = nlwMiddle;
+ dst = dstTmp;
+ dstTmp++;
+#if defined(__GNUC__) && defined(mc68020)
+ mask = cfb8PixelMasks[GetBitGroup(bits)];
+ xor = xor & mask;
+ mask = ~mask;
+ while (nlw--)
+ {
+ *dst = (*dst & mask) | xor;
+ dst += 8;
+ }
+ xor = devPriv->xor;
+#else
+#define SwitchBitsLoop(body) \
+ while (nlw--) \
+ { \
+ body \
+ dst += 8; \
+ }
+ SwitchBitGroup(dst, xor, GetBitGroup(bits));
+#undef SwitchBitsLoop
+#endif
+ NextBitGroup (bits);
+ }
+ nlwMiddle--;
+ w = wEnd + 1;
+ if (endmask)
+ {
+ mask = cfb8PixelMasks[GetBitGroup(bits)];
+ dst = dstTmp + (nlwMiddle << 3);
+ *dst = (*dst & ~(mask & endmask)) |
+ (xor & (mask & endmask));
+ }
+ while (w--)
+ {
+ nlw = nlwMiddle;
+ dst = dstTmp;
+ dstTmp++;
+#if defined(__GNUC__) && defined(mc68020)
+ mask = cfb8PixelMasks[GetBitGroup(bits)];
+ xor = xor & mask;
+ mask = ~mask;
+ while (nlw--)
+ {
+ *dst = (*dst & mask) | xor;
+ dst += 8;
+ }
+ xor = devPriv->xor;
+#else
+#define SwitchBitsLoop(body) \
+ while (nlw--) \
+ { \
+ body \
+ dst += 8; \
+ }
+ SwitchBitGroup(dst, xor, GetBitGroup(bits));
+#undef SwitchBitsLoop
+#endif
+ NextBitGroup (bits);
+ }
+ nlwMiddle++;
+ }
+ }
+ }
+ else
+ {
+ while (h--)
+ {
+ bits = src[y];
+ y++;
+ if (y == stippleHeight)
+ y = 0;
+ if (rot != 0)
+ RotBitsLeft (bits, rot);
+ dst = dstLine;
+ dstLine += nlwDst;
+ if (startmask)
+ {
+ xor = GetBitGroup(bits);
+ *dst = MaskRRopPixels(*dst, xor, startmask);
+ dst++;
+ RotBitsLeft (bits, PGSZB);
+ }
+ nlw = nlwMiddle;
+ while (nlw--)
+ {
+ RRopBitGroup(dst, GetBitGroup(bits));
+ dst++;
+ RotBitsLeft (bits, PGSZB);
+ }
+ if (endmask)
+ {
+ xor = GetBitGroup(bits);
+ *dst = MaskRRopPixels(*dst, xor, endmask);
+ }
+ }
+ }
+ }
+}
+
+
+void
+cfb8FillRectStippledUnnatural (pDrawable, pGC, nBox, pBox)
+ DrawablePtr pDrawable;
+ GCPtr pGC;
+ int nBox;
+ register BoxPtr pBox;
+{
+ unsigned long *pdstBase; /* pointer to start of bitmap */
+ unsigned long *pdstLine; /* current destination line */
+ int nlwDst; /* width in longwords of bitmap */
+ PixmapPtr pStipple; /* pointer to stipple we want to fill with */
+ int nlwMiddle;
+ register int nlw;
+ int x, y, w, h, xrem, xSrc, ySrc;
+ int stwidth, stippleWidth;
+ int stippleHeight;
+ register unsigned long bits, inputBits;
+ register int partBitsLeft;
+ int nextPartBits;
+ int bitsLeft, bitsWhole;
+ register unsigned long *pdst; /* pointer to current word in bitmap */
+ unsigned long *srcTemp, *srcStart;
+ unsigned long *psrcBase;
+ unsigned long startmask, endmask;
+
+ if (pGC->fillStyle == FillStippled)
+ cfb8CheckStipple (pGC->alu, pGC->fgPixel, pGC->planemask);
+ else
+ cfb8CheckOpaqueStipple (pGC->alu, pGC->fgPixel, pGC->bgPixel, pGC->planemask);
+
+ if (cfb8StippleRRop == GXnoop)
+ return;
+
+ /*
+ * OK, so what's going on here? We have two Drawables:
+ *
+ * The Stipple:
+ * Depth = 1
+ * Width = stippleWidth
+ * Words per scanline = stwidth
+ * Pointer to pixels = pStipple->devPrivate.ptr
+ */
+
+ pStipple = pGC->stipple;
+
+ stwidth = pStipple->devKind >> PWSH;
+ stippleWidth = pStipple->drawable.width;
+ stippleHeight = pStipple->drawable.height;
+ psrcBase = (unsigned long *) pStipple->devPrivate.ptr;
+
+ /*
+ * The Target:
+ * Depth = PSZ
+ * Width = determined from *pwidth
+ * Words per scanline = nlwDst
+ * Pointer to pixels = addrlBase
+ */
+
+ xSrc = pDrawable->x;
+ ySrc = pDrawable->y;
+
+ cfbGetLongWidthAndPointer (pDrawable, nlwDst, pdstBase)
+
+ /* this replaces rotating the stipple. Instead we just adjust the offset
+ * at which we start grabbing bits from the stipple.
+ * Ensure that ppt->x - xSrc >= 0 and ppt->y - ySrc >= 0,
+ * so that iline and xrem always stay within the stipple bounds.
+ */
+
+ xSrc += (pGC->patOrg.x % stippleWidth) - stippleWidth;
+ ySrc += (pGC->patOrg.y % stippleHeight) - stippleHeight;
+
+ bitsWhole = stippleWidth;
+
+ while (nBox--)
+ {
+ x = pBox->x1;
+ y = pBox->y1;
+ w = pBox->x2 - x;
+ h = pBox->y2 - y;
+ pBox++;
+ pdstLine = pdstBase + y * nlwDst + (x >> PWSH);
+ y = (y - ySrc) % stippleHeight;
+ srcStart = psrcBase + y * stwidth;
+ xrem = ((x & ~PIM) - xSrc) % stippleWidth;
+ if (((x & PIM) + w) < PPW)
+ {
+ maskpartialbits (x, w, startmask);
+ nlwMiddle = 0;
+ endmask = 0;
+ }
+ else
+ {
+ maskbits (x, w, startmask, endmask, nlwMiddle);
+ }
+ while (h--)
+ {
+ srcTemp = srcStart + (xrem >> MFB_PWSH);
+ bitsLeft = stippleWidth - (xrem & ~MFB_PIM);
+ NextUnnaturalStippleWord
+ NextSomeBits (inputBits, (xrem & MFB_PIM));
+ partBitsLeft -= (xrem & MFB_PIM);
+ NextUnnaturalStippleBits
+ nlw = nlwMiddle;
+ pdst = pdstLine;
+ if (startmask)
+ {
+ *pdst = MaskRRopPixels(*pdst,bits,startmask);
+ pdst++;
+ NextUnnaturalStippleBits
+ }
+ while (nlw--)
+ {
+ *pdst = RRopPixels(*pdst,bits);
+ pdst++;
+ NextUnnaturalStippleBits
+ }
+ if (endmask)
+ *pdst = MaskRRopPixels(*pdst,bits,endmask);
+ pdstLine += nlwDst;
+ y++;
+ srcStart += stwidth;
+ if (y == stippleHeight)
+ {
+ y = 0;
+ srcStart = psrcBase;
+ }
+ }
+ }
+}
+
+#endif /* PSZ == 8 */
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