|
2
|
1 |
/*
|
|
5506
|
2 |
* Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
|
|
2
|
3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
|
4 |
*
|
|
|
5 |
* This code is free software; you can redistribute it and/or modify it
|
|
|
6 |
* under the terms of the GNU General Public License version 2 only, as
|
|
5506
|
7 |
* published by the Free Software Foundation. Oracle designates this
|
|
2
|
8 |
* particular file as subject to the "Classpath" exception as provided
|
|
5506
|
9 |
* by Oracle in the LICENSE file that accompanied this code.
|
|
2
|
10 |
*
|
|
|
11 |
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
|
12 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
13 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
14 |
* version 2 for more details (a copy is included in the LICENSE file that
|
|
|
15 |
* accompanied this code).
|
|
|
16 |
*
|
|
|
17 |
* You should have received a copy of the GNU General Public License version
|
|
|
18 |
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
|
19 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
|
20 |
*
|
|
5506
|
21 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
|
22 |
* or visit www.oracle.com if you need additional information or have any
|
|
|
23 |
* questions.
|
|
2
|
24 |
*/
|
|
|
25 |
|
|
|
26 |
|
|
|
27 |
/*
|
|
|
28 |
* FUNCTION
|
|
|
29 |
* mlib_ImageConvVersion - Get Conv* funtions version
|
|
|
30 |
* 0 - "C" version
|
|
|
31 |
* 1 - "VIS" version
|
|
|
32 |
* 2 - "i386" version
|
|
|
33 |
* 3 - "MMX" version
|
|
|
34 |
*
|
|
|
35 |
* SYNOPSIS
|
|
|
36 |
* mlib_s32 mlib_ImageConvVersion(mlib_s32 m,
|
|
|
37 |
* mlib_s32 n,
|
|
|
38 |
* mlib_s32 scale,
|
|
|
39 |
* mlib_type type)
|
|
|
40 |
*
|
|
|
41 |
*/
|
|
|
42 |
|
|
|
43 |
#include "mlib_image.h"
|
|
|
44 |
|
|
|
45 |
#define MAX_U8 8
|
|
|
46 |
#define MAX_S16 32
|
|
|
47 |
|
|
|
48 |
/***************************************************************/
|
|
|
49 |
mlib_s32 mlib_ImageConvVersion(mlib_s32 m,
|
|
|
50 |
mlib_s32 n,
|
|
|
51 |
mlib_s32 scale,
|
|
|
52 |
mlib_type type)
|
|
|
53 |
{
|
|
|
54 |
#ifdef __sparc
|
|
|
55 |
return 0;
|
|
|
56 |
#else
|
|
|
57 |
mlib_d64 dscale = 1.0 / (1 << scale); /* 16 < scale <= 31 */
|
|
|
58 |
|
|
|
59 |
if (type == MLIB_BYTE) {
|
|
|
60 |
if ((m * n * dscale * 32768.0) > MAX_U8)
|
|
|
61 |
return 0;
|
|
|
62 |
return 2;
|
|
|
63 |
}
|
|
|
64 |
else if ((type == MLIB_USHORT) || (type == MLIB_SHORT)) {
|
|
|
65 |
|
|
|
66 |
if ((m * n * dscale * 32768.0 * 32768.0) > MAX_S16)
|
|
|
67 |
return 0;
|
|
|
68 |
return 2;
|
|
|
69 |
}
|
|
|
70 |
else
|
|
|
71 |
return 0;
|
|
|
72 |
#endif /* __sparc */
|
|
|
73 |
}
|
|
|
74 |
|
|
|
75 |
/***************************************************************/
|