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/* Copyright (c) 2016, Stanislaw Halik <sthalik@misaki.pl>
* 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 "vjoystick.h"
#include "api/plugin-api.hpp"
#include "compat/math.hpp"
#include <cstring>
#include <QDebug>
#include <QPushButton>
#include <QMessageBox>
#include <QDesktopServices>
#include <QUrl>
// required for api headers
#include <windows.h>
#undef PPJOY_MODE
#include <public.h>
#include <vjoyinterface.h>
#define OPENTRACK_VJOYSTICK_ID 1
const unsigned char vjoystick::axis_ids[6] =
{
HID_USAGE_X,
HID_USAGE_Y,
HID_USAGE_Z,
HID_USAGE_RX,
HID_USAGE_RY,
HID_USAGE_RZ,
// HID_USAGE_SL0,
// HID_USAGE_SL1,
// HID_USAGE_WHL,
};
static constexpr double val_minmax[6] =
{
50,
50,
50,
180,
180,
180
};
bool vjoystick::init()
{
if (!AcquireVJD(OPENTRACK_VJOYSTICK_ID))
return false;
unsigned cnt = 0;
for (unsigned i = 0; i < axis_count; i++)
{
bool status = true;
status &= !!GetVJDAxisExist(OPENTRACK_VJOYSTICK_ID, axis_ids[i]);
status &= !!GetVJDAxisMin(OPENTRACK_VJOYSTICK_ID, axis_ids[i], &axis_min[i]);
status &= !!GetVJDAxisMax(OPENTRACK_VJOYSTICK_ID, axis_ids[i], &axis_max[i]);
if (!status)
{
axis_min[i] = 0;
axis_max[i] = 0;
}
else
cnt++;
}
if (!cnt)
{
RelinquishVJD(OPENTRACK_VJOYSTICK_ID);
return false;
}
else
return true;
}
int vjoystick::to_axis_value(unsigned axis_id, double val) const
{
const double minmax = val_minmax[axis_id];
const double min = axis_min[axis_id];
const double max = axis_max[axis_id];
return (int)(clamp((val+minmax) * max / (2*minmax) - min, min, max));
}
vjoystick::vjoystick() = default;
vjoystick::~vjoystick()
{
if (status)
RelinquishVJD(OPENTRACK_VJOYSTICK_ID);
}
module_status vjoystick::initialize()
{
QString msg;
if (!vJoyEnabled())
msg = tr("vjoystick won't work without the driver installed.");
else if (WORD VerDll, VerDrv; !DriverMatch(&VerDll, &VerDrv))
msg = tr("driver/SDK version mismatch");
else
{
int code;
switch (code = GetVJDStatus(OPENTRACK_VJOYSTICK_ID))
{
case VJD_STAT_OWN:
msg = tr("BUG: handle leak.");
break;
case VJD_STAT_BUSY:
msg = tr("Virtual joystick already in use.");
break;
case VJD_STAT_MISS:
msg = tr("Device missing. Add joystick #1.");
break;
case VJD_STAT_UNKN:
msg = tr("Unknown error.");
break;
default:
msg = tr("Unknown error #%1.").arg(code);
break;
case VJD_STAT_FREE:
// we're good
status = true;
break;
}
}
if (!status)
{
QMessageBox msgbox;
msgbox.setIcon(QMessageBox::Critical);
msgbox.setText(tr("vjoystick driver problem"));
msgbox.setInformativeText(msg);
QPushButton* driver_button = msgbox.addButton(tr("Download the driver"), QMessageBox::ActionRole);
QPushButton* project_site_button = msgbox.addButton(tr("Visit project site"), QMessageBox::ActionRole);
msgbox.addButton(QMessageBox::Close);
(void) msgbox.exec();
if (msgbox.clickedButton() == driver_button)
{
static const char* download_driver_url = "https://sourceforge.net/projects/vjoystick/files/latest/download";
QDesktopServices::openUrl(QUrl(download_driver_url, QUrl::StrictMode));
}
else if (msgbox.clickedButton() == project_site_button)
{
static const char* project_site_url = "http://vjoystick.sourceforge.net/site/";
QDesktopServices::openUrl(QUrl(project_site_url, QUrl::StrictMode));
}
}
if (!status)
return error(tr("Driver problem."));
else
return {};
}
void vjoystick::pose(const double *pose)
{
if (first_run)
{
status = init();
//status &= !!ResetVJD(OPENTRACK_VJOYSTICK_ID);
first_run = false;
}
if (!status)
return;
for (unsigned i = 0; i < vjoystick::axis_count; i++)
{
if (axis_min[i] == axis_max[i])
continue;
int val = to_axis_value(i, pose[i]);
SetAxis(val, OPENTRACK_VJOYSTICK_ID, vjoystick::axis_ids[i]);
}
}
OPENTRACK_DECLARE_PROTOCOL(vjoystick, vjoystick_dialog, vjoystick_metadata)
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