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diff --git a/nx-X11/programs/Xserver/fb/fbtrap.c.X.original b/nx-X11/programs/Xserver/fb/fbtrap.c.X.original
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--- a/nx-X11/programs/Xserver/fb/fbtrap.c.X.original
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-/*
- * $Id: fbtrap.c,v 1.5 2005/07/03 07:01:23 daniels Exp $
- *
- * Copyright © 2004 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"
-
-#ifdef RENDER
-
-#include "picturestr.h"
-#include "mipict.h"
-#include "renderedge.h"
-#include "fbpict.h"
-
-void
-fbAddTraps (PicturePtr pPicture,
- INT16 x_off,
- INT16 y_off,
- int ntrap,
- xTrap *traps)
-{
- FbBits *buf;
- int bpp;
- int width;
- int stride;
- int height;
- int pxoff, pyoff;
-
- xFixed x_off_fixed;
- xFixed y_off_fixed;
- RenderEdge l, r;
- xFixed t, b;
-
- fbGetDrawable (pPicture->pDrawable, buf, stride, bpp, pxoff, pyoff);
-
- width = pPicture->pDrawable->width;
- height = pPicture->pDrawable->height;
- x_off += pxoff;
- y_off += pyoff;
-
- x_off_fixed = IntToxFixed(y_off);
- y_off_fixed = IntToxFixed(y_off);
-
- while (ntrap--)
- {
- t = traps->top.y + y_off_fixed;
- if (t < 0)
- t = 0;
- t = RenderSampleCeilY (t, bpp);
-
- b = traps->bot.y + y_off_fixed;
- if (xFixedToInt (b) >= height)
- b = IntToxFixed (height) - 1;
- b = RenderSampleFloorY (b, bpp);
-
- if (b >= t)
- {
- /* initialize edge walkers */
- RenderEdgeInit (&l, bpp, t,
- traps->top.l + x_off_fixed,
- traps->top.y + y_off_fixed,
- traps->bot.l + x_off_fixed,
- traps->bot.y + y_off_fixed);
-
- RenderEdgeInit (&r, bpp, t,
- traps->top.r + x_off_fixed,
- traps->top.y + y_off_fixed,
- traps->bot.r + x_off_fixed,
- traps->bot.y + y_off_fixed);
-
- fbRasterizeEdges (buf, bpp, width, stride, &l, &r, t, b);
- }
- traps++;
- }
-}
-
-void
-fbRasterizeTrapezoid (PicturePtr pPicture,
- xTrapezoid *trap,
- int x_off,
- int y_off)
-{
- FbBits *buf;
- int bpp;
- int width;
- int stride;
- int height;
- int pxoff, pyoff;
-
- xFixed x_off_fixed;
- xFixed y_off_fixed;
- RenderEdge l, r;
- xFixed t, b;
-
- fbGetDrawable (pPicture->pDrawable, buf, stride, bpp, pxoff, pyoff);
-
- width = pPicture->pDrawable->width;
- height = pPicture->pDrawable->height;
- x_off += pxoff;
- y_off += pyoff;
-
- x_off_fixed = IntToxFixed(x_off);
- y_off_fixed = IntToxFixed(y_off);
- t = trap->top + y_off_fixed;
- if (t < 0)
- t = 0;
- t = RenderSampleCeilY (t, bpp);
-
- b = trap->bottom + y_off_fixed;
- if (xFixedToInt (b) >= height)
- b = IntToxFixed (height) - 1;
- b = RenderSampleFloorY (b, bpp);
-
- if (b >= t)
- {
- /* initialize edge walkers */
- RenderLineFixedEdgeInit (&l, bpp, t, &trap->left, x_off, y_off);
- RenderLineFixedEdgeInit (&r, bpp, t, &trap->right, x_off, y_off);
-
- fbRasterizeEdges (buf, bpp, width, stride, &l, &r, t, b);
- }
-}
-
-static int
-_GreaterY (xPointFixed *a, xPointFixed *b)
-{
- if (a->y == b->y)
- return a->x > b->x;
- return a->y > b->y;
-}
-
-/*
- * Note that the definition of this function is a bit odd because
- * of the X coordinate space (y increasing downwards).
- */
-static int
-_Clockwise (xPointFixed *ref, xPointFixed *a, xPointFixed *b)
-{
- xPointFixed ad, bd;
-
- ad.x = a->x - ref->x;
- ad.y = a->y - ref->y;
- bd.x = b->x - ref->x;
- bd.y = b->y - ref->y;
-
- return ((xFixed_32_32) bd.y * ad.x - (xFixed_32_32) ad.y * bd.x) < 0;
-}
-
-/* FIXME -- this could be made more efficient */
-void
-fbAddTriangles (PicturePtr pPicture,
- INT16 x_off,
- INT16 y_off,
- int ntri,
- xTriangle *tris)
-{
- xPointFixed *top, *left, *right, *tmp;
- xTrapezoid trap;
-
- for (; ntri; ntri--, tris++)
- {
- top = &tris->p1;
- left = &tris->p2;
- right = &tris->p3;
- if (_GreaterY (top, left)) {
- tmp = left; left = top; top = tmp;
- }
- if (_GreaterY (top, right)) {
- tmp = right; right = top; top = tmp;
- }
- if (_Clockwise (top, right, left)) {
- tmp = right; right = left; left = tmp;
- }
-
- /*
- * Two cases:
- *
- * + +
- * / \ / \
- * / \ / \
- * / + + \
- * / -- -- \
- * / -- -- \
- * / --- --- \
- * +-- --+
- */
-
- trap.top = top->y;
- trap.left.p1 = *top;
- trap.left.p2 = *left;
- trap.right.p1 = *top;
- trap.right.p2 = *right;
- if (right->y < left->y)
- trap.bottom = right->y;
- else
- trap.bottom = left->y;
- fbRasterizeTrapezoid (pPicture, &trap, x_off, y_off);
- if (right->y < left->y)
- {
- trap.top = right->y;
- trap.bottom = left->y;
- trap.right.p1 = *right;
- trap.right.p2 = *left;
- }
- else
- {
- trap.top = left->y;
- trap.bottom = right->y;
- trap.left.p1 = *left;
- trap.left.p2 = *right;
- }
- fbRasterizeTrapezoid (pPicture, &trap, x_off, y_off);
- }
-}
-
-#endif /* RENDER */