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-rw-r--r--nx-X11/programs/Xserver/render/renderedge.c.NX.original202
1 files changed, 0 insertions, 202 deletions
diff --git a/nx-X11/programs/Xserver/render/renderedge.c.NX.original b/nx-X11/programs/Xserver/render/renderedge.c.NX.original
deleted file mode 100644
index f095038e5..000000000
--- a/nx-X11/programs/Xserver/render/renderedge.c.NX.original
+++ /dev/null
@@ -1,202 +0,0 @@
-/*
- * $Id: renderedge.c,v 1.4 2005/07/03 07:02:08 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 "renderedge.h"
-
-/*
- * Compute the smallest value no less than y which is on a
- * grid row
- */
-
-xFixed
-RenderSampleCeilY (xFixed y, int n)
-{
- xFixed f = xFixedFrac(y);
- xFixed i = xFixedFloor(y);
-
- f = ((f + Y_FRAC_FIRST(n)) / STEP_Y_SMALL(n)) * STEP_Y_SMALL(n) + Y_FRAC_FIRST(n);
- if (f > Y_FRAC_LAST(n))
- {
- f = Y_FRAC_FIRST(n);
- i += xFixed1;
- }
- return (i | f);
-}
-
-#define _div(a,b) ((a) >= 0 ? (a) / (b) : -((-(a) + (b) - 1) / (b)))
-
-/*
- * Compute the largest value no greater than y which is on a
- * grid row
- */
-xFixed
-RenderSampleFloorY (xFixed y, int n)
-{
- xFixed f = xFixedFrac(y);
- xFixed i = xFixedFloor (y);
-
- f = _div(f - Y_FRAC_FIRST(n), STEP_Y_SMALL(n)) * STEP_Y_SMALL(n) + Y_FRAC_FIRST(n);
- if (f < Y_FRAC_FIRST(n))
- {
- f = Y_FRAC_LAST(n);
- i -= xFixed1;
- }
- return (i | f);
-}
-
-/*
- * Step an edge by any amount (including negative values)
- */
-void
-RenderEdgeStep (RenderEdge *e, int n)
-{
- xFixed_48_16 ne;
-
- e->x += n * e->stepx;
-
- ne = e->e + n * (xFixed_48_16) e->dx;
-
- if (n >= 0)
- {
- if (ne > 0)
- {
- int nx = (ne + e->dy - 1) / e->dy;
- e->e = ne - nx * (xFixed_48_16) e->dy;
- e->x += nx * e->signdx;
- }
- }
- else
- {
- if (ne <= -e->dy)
- {
- int nx = (-ne) / e->dy;
- e->e = ne + nx * (xFixed_48_16) e->dy;
- e->x -= nx * e->signdx;
- }
- }
-}
-
-/*
- * A private routine to initialize the multi-step
- * elements of an edge structure
- */
-static void
-_RenderEdgeMultiInit (RenderEdge *e, int n, xFixed *stepx_p, xFixed *dx_p)
-{
- xFixed stepx;
- xFixed_48_16 ne;
-
- ne = n * (xFixed_48_16) e->dx;
- stepx = n * e->stepx;
- if (ne > 0)
- {
- int nx = ne / e->dy;
- ne -= nx * e->dy;
- stepx += nx * e->signdx;
- }
- *dx_p = ne;
- *stepx_p = stepx;
-}
-
-/*
- * Initialize one edge structure given the line endpoints and a
- * starting y value
- */
-void
-RenderEdgeInit (RenderEdge *e,
- int n,
- xFixed y_start,
- xFixed x_top,
- xFixed y_top,
- xFixed x_bot,
- xFixed y_bot)
-{
- xFixed dx, dy;
-
- e->x = x_top;
- e->e = 0;
- dx = x_bot - x_top;
- dy = y_bot - y_top;
- e->dy = dy;
- e->dx = 0;
- if (dy)
- {
- if (dx >= 0)
- {
- e->signdx = 1;
- e->stepx = dx / dy;
- e->dx = dx % dy;
- e->e = -dy;
- }
- else
- {
- e->signdx = -1;
- e->stepx = -(-dx / dy);
- e->dx = -dx % dy;
- e->e = 0;
- }
-
- _RenderEdgeMultiInit (e, STEP_Y_SMALL(n), &e->stepx_small, &e->dx_small);
- _RenderEdgeMultiInit (e, STEP_Y_BIG(n), &e->stepx_big, &e->dx_big);
- }
- RenderEdgeStep (e, y_start - y_top);
-}
-
-/*
- * Initialize one edge structure given a line, starting y value
- * and a pixel offset for the line
- */
-void
-RenderLineFixedEdgeInit (RenderEdge *e,
- int n,
- xFixed y,
- xLineFixed *line,
- int x_off,
- int y_off)
-{
- xFixed x_off_fixed = IntToxFixed(x_off);
- xFixed y_off_fixed = IntToxFixed(y_off);
- xPointFixed *top, *bot;
-
- if (line->p1.y <= line->p2.y)
- {
- top = &line->p1;
- bot = &line->p2;
- }
- else
- {
- top = &line->p2;
- bot = &line->p1;
- }
- RenderEdgeInit (e, n, y,
- top->x + x_off_fixed,
- top->y + y_off_fixed,
- bot->x + x_off_fixed,
- bot->y + y_off_fixed);
-}
-