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Diffstat (limited to 'miext/rootless/accel/rlFillSpans.c')
-rw-r--r--miext/rootless/accel/rlFillSpans.c102
1 files changed, 102 insertions, 0 deletions
diff --git a/miext/rootless/accel/rlFillSpans.c b/miext/rootless/accel/rlFillSpans.c
new file mode 100644
index 000000000..fd5ee35f5
--- /dev/null
+++ b/miext/rootless/accel/rlFillSpans.c
@@ -0,0 +1,102 @@
+/*
+ * This code is largely copied from fbfillsp.c.
+ *
+ * Copyright © 1998 Keith Packard
+ * Copyright (c) 2003 Torrey T. Lyons. All Rights Reserved.
+ *
+ * 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/miext/rootless/accel/rlFillSpans.c,v 1.1 2003/10/24 00:33:15 torrey Exp $ */
+
+#include "fb.h"
+#include "rlAccel.h"
+
+
+void
+rlFillSpans (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)
+ {
+ rlFill (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)
+ {
+ rlFill (pDrawable, pGC,
+ partX1, fullY1,
+ partX2 - partX1, 1);
+ }
+ }
+ pbox++;
+ }
+ }
+ }
+}