1/*
2 *
3 * Copyright © 2002 Keith Packard, member of The XFree86 Project, Inc.
4 *
5 * Permission to use, copy, modify, distribute, and sell this software and its
6 * documentation for any purpose is hereby granted without fee, provided that
7 * the above copyright notice appear in all copies and that both that
8 * copyright notice and this permission notice appear in supporting
9 * documentation, and that the name of Keith Packard not be used in
10 * advertising or publicity pertaining to distribution of the software without
11 * specific, written prior permission.  Keith Packard makes no
12 * representations about the suitability of this software for any purpose.  It
13 * is provided "as is" without express or implied warranty.
14 *
15 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
16 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
17 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
18 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
19 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
20 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
21 * PERFORMANCE OF THIS SOFTWARE.
22 */
23
24#ifdef HAVE_DIX_CONFIG_H
25#include <dix-config.h>
26#endif
27
28#include "scrnintstr.h"
29#include "gcstruct.h"
30#include "pixmapstr.h"
31#include "windowstr.h"
32#include "mi.h"
33#include "picturestr.h"
34#include "mipict.h"
35
36void
37miPointFixedBounds(int npoint, xPointFixed * points, BoxPtr bounds)
38{
39    bounds->x1 = xFixedToInt(points->x);
40    bounds->x2 = xFixedToInt(xFixedCeil(points->x));
41    bounds->y1 = xFixedToInt(points->y);
42    bounds->y2 = xFixedToInt(xFixedCeil(points->y));
43    points++;
44    npoint--;
45    while (npoint-- > 0) {
46        INT16 x1 = xFixedToInt(points->x);
47        INT16 x2 = xFixedToInt(xFixedCeil(points->x));
48        INT16 y1 = xFixedToInt(points->y);
49        INT16 y2 = xFixedToInt(xFixedCeil(points->y));
50
51        if (x1 < bounds->x1)
52            bounds->x1 = x1;
53        else if (x2 > bounds->x2)
54            bounds->x2 = x2;
55        if (y1 < bounds->y1)
56            bounds->y1 = y1;
57        else if (y2 > bounds->y2)
58            bounds->y2 = y2;
59        points++;
60    }
61}
62
63void
64miTriangleBounds(int ntri, xTriangle * tris, BoxPtr bounds)
65{
66    miPointFixedBounds(ntri * 3, (xPointFixed *) tris, bounds);
67}
68