From 68c56916d79bf06e26e01c3e84206edc928d9b51 Mon Sep 17 00:00:00 2001
From: Kaleb Keithley <kaleb@freedesktop.org>
Date: Fri, 14 Nov 2003 16:48:55 +0000
Subject: Initial revision

---
 src/ffb_point.c | 108 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 src/ffb_point.c

(limited to 'src/ffb_point.c')

diff --git a/src/ffb_point.c b/src/ffb_point.c
new file mode 100644
index 0000000..407f22c
--- /dev/null
+++ b/src/ffb_point.c
@@ -0,0 +1,108 @@
+/*
+ * Acceleration for the Creator and Creator3D framebuffer - Point rops.
+ *
+ * Copyright (C) 1999 Jakub Jelinek (jakub@redhat.com)
+ * Copyright (C) 1999 David S. Miller (davem@redhat.com)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * 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
+ * JAKUB JELINEK OR DAVID MILLER 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.
+ *
+ */
+/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/sunffb/ffb_point.c,v 1.2 2000/05/23 04:47:45 dawes Exp $ */
+
+#include "ffb.h"
+#include "ffb_regs.h"
+#include "ffb_rcache.h"
+#include "ffb_fifo.h"
+#include "ffb_loops.h"
+
+#include "pixmapstr.h"
+#include "scrnintstr.h"
+
+#define PSZ 8
+#include "cfb.h"
+#undef PSZ
+#include "cfb32.h"
+
+void
+CreatorPolyPoint(DrawablePtr pDrawable, GCPtr pGC, int mode,
+		 int npt, xPoint *pptInit)
+{
+	FFBPtr pFfb = GET_FFB_FROM_SCREEN (pGC->pScreen);
+	WindowPtr pWin = (WindowPtr) pDrawable;
+	ffb_fbcPtr ffb = pFfb->regs;
+	RegionPtr clip;
+	int numRects;
+	register int off, c1, c2;
+	register char *addrp;
+	register int *ppt, pt, i;
+	BoxPtr pbox;
+	xPoint *pptPrev;
+
+	FFBLOG(("CreatorPolyPoint: ALU(%x) PMSK(%08x) mode(%d) npt(%d)\n",
+		pGC->alu, pGC->planemask, mode, npt));
+
+	if (pGC->alu == GXnoop)
+		return;
+
+	clip = cfbGetCompositeClip(pGC);
+	numRects = REGION_NUM_RECTS(clip);
+	off = *(int *)&pDrawable->x;
+	off -= (off & 0x8000) << 1;
+	if (mode == CoordModePrevious && npt > 1) {
+		for (pptPrev = pptInit + 1, i = npt - 1; --i >= 0; pptPrev++) {
+			pptPrev->x += pptPrev[-1].x;
+			pptPrev->y += pptPrev[-1].y;
+		}
+	}
+
+	FFB_ATTR_GC(pFfb, pGC, pWin,
+		    FFB_PPC_APE_DISABLE | FFB_PPC_CS_CONST,
+		    pFfb->drawop_cache);
+	FFBWait(pFfb, ffb);
+
+	if (pGC->depth == 8) {
+		addrp = (char *)pFfb->sfb8r + (pDrawable->y << 11) + (pDrawable->x << 0);
+		pbox = REGION_RECTS(clip);
+		while (numRects--) {
+			c1 = *(int *)&pbox->x1 - off;
+			c2 = *(int *)&pbox->x2 - off - 0x00010001;
+			for (ppt = (int *)pptInit, i = npt; --i >= 0; ) {
+				pt = *ppt++;
+				if (!(((pt - c1) | (c2 - pt)) & 0x80008000))
+					*(unsigned char *)(addrp + ((pt << 11) & 0x3ff800) +
+							   ((pt >> 16) & 0x07ff)) = 0;
+			}
+			pbox++;
+		}
+	} else {
+		addrp = (char *)pFfb->sfb32 + (pDrawable->y << 13) + (pDrawable->x << 2);
+		pbox = REGION_RECTS(clip);
+		while (numRects--) {
+			c1 = *(int *)&pbox->x1 - off;
+			c2 = *(int *)&pbox->x2 - off - 0x00010001;
+			for (ppt = (int *)pptInit, i = npt; --i >= 0; ) {
+				pt = *ppt++;
+				if (!(((pt - c1) | (c2 - pt)) & 0x80008000))
+					*(unsigned int *)(addrp + ((pt << 13) & 0xffe000) +
+							  ((pt >> 14) & 0x1ffc)) = 0;
+			}
+			pbox++;
+		}
+	}
+}
-- 
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