1/*
2 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
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
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
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 *
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.
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/***************************************************************/
49mlib_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/***************************************************************/
76