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
|
// Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB).
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include <private/qsimd_p.h>
#if defined(__AVX2__) && defined(QT_COMPILER_SUPPORTS_AVX2)
#include "matrix4x4_avx2_p.h"
#else
#include "matrix4x4_sse_p.h"
#endif
#include "vector3d_sse_p.h"
#include "vector4d_sse_p.h"
#include <QDebug>
#ifdef QT_COMPILER_SUPPORTS_SSE2
QT_BEGIN_NAMESPACE
namespace Qt3DCore {
QDebug operator<<(QDebug dbg, const Vector3D_SSE &v)
{
dbg.nospace() << "Vector3D_SSE(" << v.x() << ", " << v.y() << ", " << v.z() << ") ";
return dbg;
}
Vector3D_SSE::Vector3D_SSE(const Vector4D_SSE &v)
{
m_xyzw = _mm_mul_ps(v.m_xyzw, _mm_set_ps(0.0f, 1.0f, 1.0f, 1.0f));
}
#if defined(__AVX2__) && defined(QT_COMPILER_SUPPORTS_AVX2)
Vector3D_SSE Vector3D_SSE::unproject(const Matrix4x4_AVX2 &modelView, const Matrix4x4_AVX2 &projection, const QRect &viewport) const
{
const Matrix4x4_AVX2 inverse = (projection * modelView).inverted();
Vector4D_SSE tmp(*this, 1.0f);
tmp.setX((tmp.x() - float(viewport.x())) / float(viewport.width()));
tmp.setY((tmp.y() - float(viewport.y())) / float(viewport.height()));
tmp = tmp * 2.0f - Vector4D_SSE(1.0f, 1.0f, 1.0f, 1.0f);
Vector4D_SSE obj = inverse * tmp;
if (qFuzzyIsNull(obj.w()))
obj.setW(1.0f);
obj /= obj.w();
return Vector3D_SSE(obj);
}
Vector3D_SSE Vector3D_SSE::project(const Matrix4x4_AVX2 &modelView, const Matrix4x4_AVX2 &projection, const QRect &viewport) const
{
Vector4D_SSE tmp(*this, 1.0f);
tmp = projection * modelView * tmp;
if (qFuzzyIsNull(tmp.w()))
tmp.setW(1.0f);
tmp /= tmp.w();
tmp = tmp * 0.5f + Vector4D_SSE(0.5f, 0.5f, 0.5f, 0.5f);
tmp.setX(tmp.x() * viewport.width() + viewport.x());
tmp.setY(tmp.y() * viewport.height() + viewport.y());
return Vector3D_SSE(tmp);
}
#else
Vector3D_SSE Vector3D_SSE::unproject(const Matrix4x4_SSE &modelView, const Matrix4x4_SSE &projection, const QRect &viewport) const
{
const Matrix4x4_SSE inverse = (projection * modelView).inverted();
Vector4D_SSE tmp(*this, 1.0f);
tmp.setX((tmp.x() - float(viewport.x())) / float(viewport.width()));
tmp.setY((tmp.y() - float(viewport.y())) / float(viewport.height()));
tmp = tmp * 2.0f - Vector4D_SSE(1.0f, 1.0f, 1.0f, 1.0f);
Vector4D_SSE obj = inverse * tmp;
if (qFuzzyIsNull(obj.w()))
obj.setW(1.0f);
obj /= obj.w();
return Vector3D_SSE(obj);
}
Vector3D_SSE Vector3D_SSE::project(const Matrix4x4_SSE &modelView, const Matrix4x4_SSE &projection, const QRect &viewport) const
{
Vector4D_SSE tmp(*this, 1.0f);
tmp = projection * modelView * tmp;
if (qFuzzyIsNull(tmp.w()))
tmp.setW(1.0f);
tmp /= tmp.w();
tmp = tmp * 0.5f + Vector4D_SSE(0.5f, 0.5f, 0.5f, 0.5f);
tmp.setX(tmp.x() * viewport.width() + viewport.x());
tmp.setY(tmp.y() * viewport.height() + viewport.y());
return Vector3D_SSE(tmp);
}
#endif
} // Qt3DCore
QT_END_NAMESPACE
#endif // QT_COMPILER_SUPPORTS_SSE2
|
