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
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
#include "ModelReader.h"
#include "dualcon.h"
#include "octree.h"
#include <cassert>
#include <cstdio>
#include <float.h>
#if defined(_WIN32)
# define isnan(n) _isnan(n)
#endif
static void veccopy(float dst[3], const float src[3])
{
dst[0] = src[0];
dst[1] = src[1];
dst[2] = src[2];
}
#define GET_TRI(_mesh, _n) \
(*(DualConTri)(((char *)(_mesh)->looptri) + ((_n) * (_mesh)->tri_stride)))
#define GET_CO(_mesh, _n) (*(DualConCo)(((char *)(_mesh)->co) + ((_n) * (_mesh)->co_stride)))
#define GET_LOOP(_mesh, _n) \
(*(DualConLoop)(((char *)(_mesh)->mloop) + ((_n) * (_mesh)->loop_stride)))
class DualConInputReader : public ModelReader {
private:
const DualConInput *input_mesh;
int tottri, curtri;
float min[3], max[3], maxsize;
float scale;
public:
DualConInputReader(const DualConInput *mesh, float _scale) : input_mesh(mesh), scale(_scale)
{
reset();
}
void reset()
{
curtri = 0;
maxsize = 0;
tottri = input_mesh->tottri;
veccopy(min, input_mesh->min);
veccopy(max, input_mesh->max);
/* initialize maxsize */
for (int i = 0; i < 3; i++) {
float d = max[i] - min[i];
if (d > maxsize)
maxsize = d;
}
/* redo the bounds */
for (int i = 0; i < 3; i++) {
min[i] = (max[i] + min[i]) / 2 - maxsize / 2;
max[i] = (max[i] + min[i]) / 2 + maxsize / 2;
}
for (int i = 0; i < 3; i++)
min[i] -= maxsize * (1 / scale - 1) / 2;
maxsize *= 1 / scale;
}
Triangle *getNextTriangle()
{
if (curtri == input_mesh->tottri)
return NULL;
Triangle *t = new Triangle();
unsigned int *tr = GET_TRI(input_mesh, curtri);
veccopy(t->vt[0], GET_CO(input_mesh, GET_LOOP(input_mesh, tr[0])));
veccopy(t->vt[1], GET_CO(input_mesh, GET_LOOP(input_mesh, tr[1])));
veccopy(t->vt[2], GET_CO(input_mesh, GET_LOOP(input_mesh, tr[2])));
curtri++;
/* remove triangle if it contains invalid coords */
for (int i = 0; i < 3; i++) {
const float *co = t->vt[i];
if (isnan(co[0]) || isnan(co[1]) || isnan(co[2])) {
delete t;
return getNextTriangle();
}
}
return t;
}
int getNextTriangle(int t[3])
{
if (curtri == input_mesh->tottri)
return 0;
unsigned int *tr = GET_TRI(input_mesh, curtri);
t[0] = tr[0];
t[1] = tr[1];
t[2] = tr[2];
curtri++;
return 1;
}
int getNumTriangles()
{
return tottri;
}
int getNumVertices()
{
return input_mesh->totco;
}
float getBoundingBox(float origin[3])
{
veccopy(origin, min);
return maxsize;
}
/* output */
void getNextVertex(float /*v*/[3])
{
/* not used */
}
/* stubs */
void printInfo()
{
}
int getMemory()
{
return sizeof(DualConInputReader);
}
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("DUALCON:DualConInputReader")
#endif
};
void *dualcon(const DualConInput *input_mesh,
/* callbacks for output */
DualConAllocOutput alloc_output,
DualConAddVert add_vert,
DualConAddQuad add_quad,
DualConFlags flags,
DualConMode mode,
float threshold,
float hermite_num,
float scale,
int depth)
{
DualConInputReader r(input_mesh, scale);
Octree o(&r, alloc_output, add_vert, add_quad, flags, mode, depth, threshold, hermite_num);
o.scanConvert();
return o.getOutputMesh();
}
|
