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/* 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/library-path.hpp"
#include "ftnoir_protocol_ft.h"
#include "csv/csv.h"
#include <cstddef>
#include <cmath>
#include <windows.h>
freetrack::~freetrack()
{
dummyTrackIR.close();
}
static_assert(sizeof(LONG) == sizeof(std::int32_t), "");
static_assert(sizeof(LONG) == 4u, "");
static constexpr inline float d2r = float(M_PI/180);
never_inline void store(float volatile& place, const float value)
{
union
{
float f32;
LONG i32;
} 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);
}
template<typename t>
force_inline void store(t volatile& place, t value)
{
static_assert(sizeof(t) == 4u, "");
(void)InterlockedExchange((LONG volatile*) &place, value);
}
force_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 = -headpose[Yaw] * d2r;
const float roll = headpose[Roll] * d2r;
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 = -d2r * (is_crossing_90 ? 89.86 : headpose[Pitch]);
FTHeap* const ft = pMemData;
FTData* const 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);
{
// FTHeap pMemData happens to be aligned on a page boundary by virtue of
// memory mapping usage (MS Windows equivalent of mmap(2)).
static_assert((offsetof(FTHeap, table) & sizeof(LONG)-1) == 0);
for (unsigned k = 0; k < 2; k++)
store(pMemData->table_ints[k], t.ints[k]);
}
store(ft->GameID2, id);
store((std::uint32_t volatile &)data->DataID, 0u);
intGameID = id;
if (gamename.isEmpty())
gamename = tr("Unknown game");
QMutexLocker foo(&game_name_mutex);
connected_game = gamename;
}
else
(void)InterlockedAdd((LONG volatile*)&data->DataID, 1);
}
QString freetrack::game_name()
{
QMutexLocker foo(&game_name_mutex);
return connected_game;
}
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(tr("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(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)
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