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Diffstat (limited to 'xorg-server/cfb/cfbpush8.c')
-rw-r--r--xorg-server/cfb/cfbpush8.c184
1 files changed, 184 insertions, 0 deletions
diff --git a/xorg-server/cfb/cfbpush8.c b/xorg-server/cfb/cfbpush8.c
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index 000000000..857ec94a6
--- /dev/null
+++ b/xorg-server/cfb/cfbpush8.c
@@ -0,0 +1,184 @@
+/*
+ * Push Pixels for 8 bit displays.
+ */
+
+
+/*
+
+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.
+*/
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#if PSZ == 8
+
+#include <X11/X.h>
+#include <X11/Xmd.h>
+#include <X11/Xproto.h>
+#include "gcstruct.h"
+#include "windowstr.h"
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "regionstr.h"
+#include "cfb.h"
+#include "cfbmskbits.h"
+#include "cfb8bit.h"
+#define MFB_CONSTS_ONLY
+#include "maskbits.h"
+
+void
+cfbPushPixels8 (pGC, pBitmap, pDrawable, dx, dy, xOrg, yOrg)
+ GCPtr pGC;
+ PixmapPtr pBitmap;
+ DrawablePtr pDrawable;
+ int dx, dy, xOrg, yOrg;
+{
+ register CfbBits *src, *dst;
+ register CfbBits pixel;
+ register CfbBits c, bits;
+ CfbBits *pdstLine, *psrcLine;
+ CfbBits *pdstBase;
+ int srcWidth;
+ int dstWidth;
+ int xoff;
+ int nBitmapLongs, nPixmapLongs;
+ int nBitmapTmp, nPixmapTmp;
+ CfbBits rightMask;
+ BoxRec bbox;
+ cfbPrivGCPtr devPriv;
+
+ bbox.x1 = xOrg;
+ bbox.y1 = yOrg;
+ bbox.x2 = bbox.x1 + dx;
+ bbox.y2 = bbox.y1 + dy;
+ devPriv = cfbGetGCPrivate(pGC);
+
+ switch (RECT_IN_REGION(pGC->pScreen, pGC->pCompositeClip, &bbox))
+ {
+ case rgnPART:
+ mfbPushPixels(pGC, pBitmap, pDrawable, dx, dy, xOrg, yOrg);
+ case rgnOUT:
+ return;
+ }
+
+ cfbGetLongWidthAndPointer (pDrawable, dstWidth, pdstBase)
+
+ psrcLine = (CfbBits *) pBitmap->devPrivate.ptr;
+ srcWidth = (int) pBitmap->devKind >> PWSH;
+
+ pixel = devPriv->xor;
+ xoff = xOrg & PIM;
+ nBitmapLongs = (dx + xoff) >> MFB_PWSH;
+ nPixmapLongs = (dx + PGSZB + xoff) >> PWSH;
+
+ rightMask = ~cfb8BitLenMasks[((dx + xoff) & MFB_PIM)];
+
+ pdstLine = pdstBase + (yOrg * dstWidth) + (xOrg >> PWSH);
+
+ while (dy--)
+ {
+ c = 0;
+ nPixmapTmp = nPixmapLongs;
+ nBitmapTmp = nBitmapLongs;
+ src = psrcLine;
+ dst = pdstLine;
+ while (nBitmapTmp--)
+ {
+ bits = *src++;
+ c |= BitRight (bits, xoff);
+ WriteBitGroup(dst, pixel, GetBitGroup(c));
+ NextBitGroup(c);
+ dst++;
+ WriteBitGroup(dst, pixel, GetBitGroup(c));
+ NextBitGroup(c);
+ dst++;
+ WriteBitGroup(dst, pixel, GetBitGroup(c));
+ NextBitGroup(c);
+ dst++;
+ WriteBitGroup(dst, pixel, GetBitGroup(c));
+ NextBitGroup(c);
+ dst++;
+ WriteBitGroup(dst, pixel, GetBitGroup(c));
+ NextBitGroup(c);
+ dst++;
+ WriteBitGroup(dst, pixel, GetBitGroup(c));
+ NextBitGroup(c);
+ dst++;
+ WriteBitGroup(dst, pixel, GetBitGroup(c));
+ NextBitGroup(c);
+ dst++;
+ WriteBitGroup(dst, pixel, GetBitGroup(c));
+ NextBitGroup(c);
+ dst++;
+ nPixmapTmp -= 8;
+ c = 0;
+ if (xoff)
+ c = BitLeft (bits, PGSZ - xoff);
+ }
+ if (BitLeft (rightMask, xoff))
+ c |= BitRight (*src, xoff);
+ c &= rightMask;
+ switch (nPixmapTmp) {
+ case 8:
+ WriteBitGroup(dst, pixel, GetBitGroup(c));
+ NextBitGroup(c);
+ dst++;
+ case 7:
+ WriteBitGroup(dst, pixel, GetBitGroup(c));
+ NextBitGroup(c);
+ dst++;
+ case 6:
+ WriteBitGroup(dst, pixel, GetBitGroup(c));
+ NextBitGroup(c);
+ dst++;
+ case 5:
+ WriteBitGroup(dst, pixel, GetBitGroup(c));
+ NextBitGroup(c);
+ dst++;
+ case 4:
+ WriteBitGroup(dst, pixel, GetBitGroup(c));
+ NextBitGroup(c);
+ dst++;
+ case 3:
+ WriteBitGroup(dst, pixel, GetBitGroup(c));
+ NextBitGroup(c);
+ dst++;
+ case 2:
+ WriteBitGroup(dst, pixel, GetBitGroup(c));
+ NextBitGroup(c);
+ dst++;
+ case 1:
+ WriteBitGroup(dst, pixel, GetBitGroup(c));
+ NextBitGroup(c);
+ dst++;
+ case 0:
+ break;
+ }
+ pdstLine += dstWidth;
+ psrcLine += srcWidth;
+ }
+}
+
+#endif