1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/**
* @file xform.cpp
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "xform.h"
LLXform::LLXform()
{
init();
}
LLXform::~LLXform()
{
}
// Link optimization - don't inline these LL_WARNS()
void LLXform::warn(const char* const msg)
{
LL_WARNS() << msg << LL_ENDL;
}
LLXform* LLXform::getRoot() const
{
const LLXform* root = this;
while(root->mParent)
{
root = root->mParent;
}
return (LLXform*)root;
}
bool LLXform::isRoot() const
{
return (!mParent);
}
bool LLXform::isRootEdit() const
{
return (!mParent);
}
LLXformMatrix::~LLXformMatrix()
{
}
void LLXformMatrix::update()
{
if (mParent)
{
mWorldPosition = mPosition;
if (mParent->getScaleChildOffset())
{
mWorldPosition.scaleVec(mParent->getScale());
}
mWorldPosition *= mParent->getWorldRotation();
mWorldPosition += mParent->getWorldPosition();
mWorldRotation = mRotation * mParent->getWorldRotation();
}
else
{
mWorldPosition = mPosition;
mWorldRotation = mRotation;
}
}
void LLXformMatrix::updateMatrix(bool update_bounds)
{
update();
mWorldMatrix.initAll(mScale, mWorldRotation, mWorldPosition);
if (update_bounds && (mChanged & MOVED))
{
mMin.mV[0] = mMax.mV[0] = mWorldMatrix.mMatrix[3][0];
mMin.mV[1] = mMax.mV[1] = mWorldMatrix.mMatrix[3][1];
mMin.mV[2] = mMax.mV[2] = mWorldMatrix.mMatrix[3][2];
F32 f0 = (fabs(mWorldMatrix.mMatrix[0][0])+fabs(mWorldMatrix.mMatrix[1][0])+fabs(mWorldMatrix.mMatrix[2][0])) * 0.5f;
F32 f1 = (fabs(mWorldMatrix.mMatrix[0][1])+fabs(mWorldMatrix.mMatrix[1][1])+fabs(mWorldMatrix.mMatrix[2][1])) * 0.5f;
F32 f2 = (fabs(mWorldMatrix.mMatrix[0][2])+fabs(mWorldMatrix.mMatrix[1][2])+fabs(mWorldMatrix.mMatrix[2][2])) * 0.5f;
mMin.mV[0] -= f0;
mMin.mV[1] -= f1;
mMin.mV[2] -= f2;
mMax.mV[0] += f0;
mMax.mV[1] += f1;
mMax.mV[2] += f2;
}
}
void LLXformMatrix::getMinMax(LLVector3& min, LLVector3& max) const
{
min = mMin;
max = mMax;
}
|
