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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
/* Copyright (c) 2013-2015, 2017 Stanislaw Halik <sthalik@misaki.pl>
* Copyright (c) 2015 Wim Vriend
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*/
#include "compat/ndebug-guard.hpp"
#include "compat/util.hpp"
#include "ftnoir_protocol_ft.h"
#include "csv/csv.h"
#include "opentrack-library-path.h"
#include <atomic>
#include <cmath>
#include <windows.h>
freetrack::freetrack()
{
}
freetrack::~freetrack()
{
if (shm.success())
{
const double tmp[6] {};
pose(tmp);
}
dummyTrackIR.close();
}
static_assert(sizeof(LONG) == sizeof(std::int32_t), "");
static_assert(sizeof(LONG) == 4u, "");
never_inline void store(float volatile& place, const float value)
{
union
{
float f32;
LONG i32 alignas(alignof(float));
} value_;
value_.f32 = value;
static_assert(sizeof(value_) == sizeof(float), "");
static_assert(offsetof(decltype(value_), f32) == offsetof(decltype(value_), i32), "");
(void)InterlockedExchange((LONG volatile*)&place, value_.i32);
}
never_inline void store(std::int32_t volatile& place, std::int32_t value)
{
(void)InterlockedExchange((LONG volatile*) &place, value);
}
never_inline std::int32_t load(std::int32_t volatile& place)
{
return InterlockedCompareExchange((volatile LONG*) &place, 0, 0);
}
void freetrack::pose(const double* headpose)
{
const float yaw = -degrees_to_rads(headpose[Yaw]);
const float roll = degrees_to_rads(headpose[Roll]);
const float tx = float(headpose[TX] * 10);
const float ty = float(headpose[TY] * 10);
const float tz = float(headpose[TZ] * 10);
// HACK: Falcon BMS makes a "bump" if pitch is over the value -sh 20170615
const bool is_crossing_90 = std::fabs(headpose[Pitch] - 90) < 1e-4;
const float pitch = -degrees_to_rads(is_crossing_90 ? 89.85 : headpose[Pitch]);
FTHeap volatile* ft = pMemData;
FTData volatile* data = &ft->data;
store(data->X, tx);
store(data->Y, ty);
store(data->Z, tz);
store(data->Yaw, yaw);
store(data->Pitch, pitch);
store(data->Roll, roll);
const std::int32_t id = load(ft->GameID);
if (intGameID != id)
{
QString gamename;
union {
unsigned char table[8];
std::int32_t ints[2];
} t;
t.ints[0] = 0; t.ints[1] = 0;
(void)CSV::getGameData(id, t.table, gamename);
{
const std::uintptr_t addr = (std::uintptr_t)(void*)&pMemData->table[0];
const std::uintptr_t addr_ = addr & ~(sizeof(LONG)-1u);
static_assert(sizeof(LONG) == 4, "");
// the data `happens' to be aligned by virtue of element ordering
// inside FTHeap. there's no deeper reason behind it.
if (addr != addr_)
assert(!"unaligned access");
// no unaligned atomic access for `char'
for (unsigned k = 0; k < 2; k++)
store(*(std::int32_t volatile*)&pMemData->table_ints[k], t.ints[k]);
}
store(ft->GameID2, id);
store((std::int32_t volatile&) data->DataID, 0);
intGameID = id;
QMutexLocker foo(&game_name_mutex);
connected_game = gamename;
}
else
(void)InterlockedAdd((LONG volatile*)&data->DataID, 1);
}
float freetrack::degrees_to_rads(double degrees)
{
return float(degrees*M_PI/180);
}
void freetrack::start_dummy()
{
static const QString program = OPENTRACK_BASE_PATH + OPENTRACK_LIBRARY_PATH "TrackIR.exe";
dummyTrackIR.setProgram("\"" + program + "\"");
dummyTrackIR.start();
}
void freetrack::set_protocols(bool ft, bool npclient)
{
static const QString program_dir = OPENTRACK_BASE_PATH + OPENTRACK_LIBRARY_PATH;
// Registry settings (in HK_USER)
QSettings settings_ft("Freetrack", "FreetrackClient");
QSettings settings_npclient("NaturalPoint", "NATURALPOINT\\NPClient Location");
if (ft)
settings_ft.setValue("Path", program_dir);
else
settings_ft.setValue("Path", "");
if (npclient)
settings_npclient.setValue("Path", program_dir);
else
settings_npclient.setValue("Path", "");
}
module_status freetrack::initialize()
{
if (!shm.success())
return error("Can't load freetrack memory mapping");
bool use_ft = false, use_npclient = false;
switch (s.intUsedInterface) {
case 0:
use_ft = true;
use_npclient = true;
break;
case 1:
use_ft = true;
break;
case 2:
use_npclient = true;
break;
default:
break;
}
set_protocols(use_ft, use_npclient);
pMemData->data.DataID = 1;
pMemData->data.CamWidth = 100;
pMemData->data.CamHeight = 250;
#if 0
store(pMemData->data.X1, float(100));
store(pMemData->data.Y1, float(200));
store(pMemData->data.X2, float(300));
store(pMemData->data.Y2, float(200));
store(pMemData->data.X3, float(300));
store(pMemData->data.Y3, float(100));
#endif
store(pMemData->GameID2, 0);
for (unsigned k = 0; k < 2; k++)
store(*(std::int32_t volatile*)&pMemData->table_ints[k], 0);
// more games need the dummy executable than previously thought
if (use_npclient)
start_dummy();
return status_ok();
}
OPENTRACK_DECLARE_PROTOCOL(freetrack, FTControls, freetrackDll)
|
