1/*---------------------------------------------------------------------------*
2  Project:  Horizon
3  File:     math_Matrix43.ipp
4
5  Copyright (C)2009-2010 Nintendo Co., Ltd.  All rights reserved.
6
7  These coded instructions, statements, and computer programs contain
8  proprietary information of Nintendo of America Inc. and/or Nintendo
9  Company Ltd., and are protected by Federal copyright law.  They may
10  not be disclosed to third parties or copied or duplicated in any form,
11  in whole or in part, without the prior written consent of Nintendo.
12
13  $Revision: 47340 $
14 *---------------------------------------------------------------------------*/
15
16namespace nn { namespace math {
17
18NN_MATH_INLINE MTX43*
19MTX43Identity(MTX43* pOut)
20{
21    NN_NULL_ASSERT( pOut );
22
23    MTX43Copy(pOut, MTX43::Identity());
24
25    return pOut;
26}
27
28NN_MATH_INLINE bool
29MTX43IsIdentity(const MTX43* p)
30{
31    return p->f._00 == 1.f && p->f._01 == 0.f && p->f._02 == 0.f &&
32           p->f._10 == 0.f && p->f._11 == 1.f && p->f._12 == 0.f &&
33           p->f._20 == 0.f && p->f._21 == 0.f && p->f._22 == 1.f &&
34           p->f._30 == 0.f && p->f._31 == 0.f && p->f._32 == 0.f;
35}
36
37NN_MATH_INLINE MTX43*
38MTX43Sub(MTX43* pOut, const MTX43* p1, const MTX43* p2)
39{
40    NN_NULL_ASSERT( pOut );
41    NN_NULL_ASSERT( p1 );
42    NN_NULL_ASSERT( p2 );
43
44    pOut->f._00 = p1->f._00 - p2->f._00;
45    pOut->f._01 = p1->f._01 - p2->f._01;
46    pOut->f._02 = p1->f._02 - p2->f._02;
47
48    pOut->f._10 = p1->f._10 - p2->f._10;
49    pOut->f._11 = p1->f._11 - p2->f._11;
50    pOut->f._12 = p1->f._12 - p2->f._12;
51
52    pOut->f._20 = p1->f._20 - p2->f._20;
53    pOut->f._21 = p1->f._21 - p2->f._21;
54    pOut->f._22 = p1->f._22 - p2->f._22;
55
56    pOut->f._30 = p1->f._30 - p2->f._30;
57    pOut->f._31 = p1->f._31 - p2->f._31;
58    pOut->f._32 = p1->f._32 - p2->f._32;
59
60    return pOut;
61}
62
63NN_MATH_INLINE MTX43*
64MTX43Zero(MTX43* pOut)
65{
66    NN_NULL_ASSERT( pOut );
67
68    pOut->f._00 = pOut->f._01 = pOut->f._02 =
69    pOut->f._10 = pOut->f._11 = pOut->f._12 =
70    pOut->f._20 = pOut->f._21 = pOut->f._22 =
71    pOut->f._30 = pOut->f._31 = pOut->f._32 = 0.f;
72
73    return pOut;
74}
75
76}  // namespace math
77}  // namespace nn
78