1 files changed, 100 insertions, 0 deletions
diff --git a/xorg-server/fb/fbfillsp.c b/xorg-server/fb/fbfillsp.c
new file mode 100644
index 000000000..5d2147213
--- /dev/null
+++ b/xorg-server/fb/fbfillsp.c
@@ -0,0 +1,100 @@
+/*
+ * 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.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "fb.h"
+
+void
+fbFillSpans (DrawablePtr    pDrawable,
+	     GCPtr	    pGC,
+	     int	    n,
+	     DDXPointPtr    ppt,
+	     int	    *pwidth,
+	     int	    fSorted)
+{
+    RegionPtr	    pClip = fbGetCompositeClip(pGC);
+    BoxPtr	    pextent, pbox;
+    int		    nbox;
+    int		    extentX1, extentX2, extentY1, extentY2;
+    int		    fullX1, fullX2, fullY1;
+    int		    partX1, partX2;
+    
+    pextent = REGION_EXTENTS(pGC->pScreen, pClip);
+    extentX1 = pextent->x1;
+    extentY1 = pextent->y1;
+    extentX2 = pextent->x2;
+    extentY2 = pextent->y2;
+    while (n--)
+    {
+	fullX1 = ppt->x;
+	fullY1 = ppt->y;
+	fullX2 = fullX1 + (int) *pwidth;
+	ppt++;
+	pwidth++;
+	
+	if (fullY1 < extentY1 || extentY2 <= fullY1)
+	    continue;
+	
+	if (fullX1 < extentX1)
+	    fullX1 = extentX1;
+
+	if (fullX2 > extentX2)
+	    fullX2 = extentX2;
+	
+	if (fullX1 >= fullX2)
+	    continue;
+	
+	nbox = REGION_NUM_RECTS (pClip);
+	if (nbox == 1)
+	{
+	    fbFill (pDrawable,
+		    pGC,
+		    fullX1, fullY1, fullX2-fullX1, 1);
+	}
+	else
+	{
+	    pbox = REGION_RECTS(pClip);
+	    while(nbox--)
+	    {
+		if (pbox->y1 <= fullY1 && fullY1 < pbox->y2)
+		{
+		    partX1 = pbox->x1;
+		    if (partX1 < fullX1)
+			partX1 = fullX1;
+		    partX2 = pbox->x2;
+		    if (partX2 > fullX2)
+			partX2 = fullX2;
+		    if (partX2 > partX1)
+		    {
+			fbFill (pDrawable, pGC,
+				partX1, fullY1,
+				partX2 - partX1, 1);
+		    }
+		}
+		pbox++;
+	    }
+	}
+    }
+}