Initial revision

1 files changed, 100 insertions, 0 deletions

diff --git a/fb/fbsetsp.c b/fb/fbsetsp.c
new file mode 100644
index 000000000..e207760c6
--- /dev/null
+++ b/fb/fbsetsp.c
@@ -0,0 +1,100 @@
+/*
+ * Id: fbsetsp.c,v 1.1 1999/11/02 03:54:45 keithp Exp $
+ *
+ * Copyright © 1998 Keith Packard
+ *
+ * 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, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Keith Packard makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+/* $XFree86: xc/programs/Xserver/fb/fbsetsp.c,v 1.5 2001/05/29 04:54:09 keithp Exp $ */
+
+#include "fb.h"
+
+void
+fbSetSpans (DrawablePtr	    pDrawable,
+	    GCPtr	    pGC,
+	    char	    *src,
+	    DDXPointPtr	    ppt,
+	    int		    *pwidth,
+	    int		    nspans,
+	    int		    fSorted)
+{
+    FbGCPrivPtr	    pPriv = fbGetGCPrivate (pGC);
+    RegionPtr	    pClip = fbGetCompositeClip(pGC);
+    FbBits	    *dst, *d, *s;
+    FbStride	    dstStride;
+    int		    dstBpp;
+    int		    dstXoff, dstYoff;
+    BoxPtr	    pbox;
+    int		    n;
+    int		    xoff;
+    int		    x1, x2;
+    
+#ifdef FB_24_32BIT
+    if (pDrawable->bitsPerPixel != BitsPerPixel(pDrawable->depth))
+    {
+	fb24_32SetSpans (pDrawable, pGC, src, ppt, pwidth, nspans, fSorted);
+	return;
+    }
+#endif
+    fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
+    while (nspans--)
+    {
+	d = dst + (ppt->y + dstYoff) * dstStride;
+	xoff = (int) (((long) src) & (FB_MASK >> 3));
+	s = (FbBits *) (src - xoff);
+	xoff <<= 3;
+	n = REGION_NUM_RECTS(pClip);
+	pbox = REGION_RECTS (pClip);
+	while (n--)
+	{
+	    if (pbox->y1 > ppt->y)
+		break;
+	    if (pbox->y2 > ppt->y)
+	    {
+		x1 = ppt->x;
+		x2 = x1 + *pwidth;
+		if (pbox->x1 > x1)
+		    x1 = pbox->x1;
+		if (pbox->x2 < x2)
+		    x2 = pbox->x2;
+		if (x1 < x2)
+		    fbBlt ((FbBits *) s,
+			   0,
+			   (x1 - ppt->x) * dstBpp + xoff,
+			   d,
+			   dstStride,
+			   (x1 + dstXoff) * dstBpp,
+
+			   (x2 - x1) * dstBpp,
+			   1,
+			   pGC->alu,
+			   pPriv->pm,
+			   dstBpp,
+			   
+			   FALSE,
+			   FALSE);
+	    }
+	}
+	src += PixmapBytePad (*pwidth, pDrawable->depth);
+	ppt++;
+	pwidth++;
+    }
+    fbValidateDrawable (pDrawable);
+}
+