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86Box/src/win/win_joystick.cpp

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/*
* 86Box A hypervisor and IBM PC system emulator that specializes in
* running old operating systems and software designed for IBM
* PC systems and compatibles from 1981 through fairly recent
* system designs based on the PCI bus.
*
* This file is part of the 86Box distribution.
*
* Joystick interface to host device.
*
* Version: @(#)win_joystick.cpp 1.0.12 2019/10/23
*
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Miran Grca, <mgrca8@gmail.com>
*
* Copyright 2008-2019 Sarah Walker.
* Copyright 2016-2019 Miran Grca.
*/
#define DIRECTINPUT_VERSION 0x0800
#include <dinput.h>
#include <math.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#define HAVE_STDARG_H
#include "../86box.h"
#include "../device.h"
#include "../plat.h"
#include "../game/gameport.h"
#include "win.h"
plat_joystick_t plat_joystick_state[MAX_PLAT_JOYSTICKS];
joystick_t joystick_state[MAX_JOYSTICKS];
int joysticks_present = 0;
static LPDIRECTINPUT8 lpdi;
static LPDIRECTINPUTDEVICE8 lpdi_joystick[2] = {NULL, NULL};
static GUID joystick_guids[MAX_JOYSTICKS];
#ifdef ENABLE_JOYSTICK_LOG
int joystick_do_log = ENABLE_JOYSTICK_LOG;
static void
joystick_log(const char *fmt, ...)
{
va_list ap;
if (joystick_do_log) {
va_start(ap, fmt);
pclog_ex(fmt, ap);
va_end(ap);
}
}
#else
#define joystick_log(fmt, ...)
#endif
static BOOL CALLBACK joystick_enum_callback(LPCDIDEVICEINSTANCE lpddi, UNUSED(LPVOID data))
{
if (joysticks_present >= MAX_JOYSTICKS)
return DIENUM_STOP;
joystick_log("joystick_enum_callback : found joystick %i : %s\n", joysticks_present, lpddi->tszProductName);
joystick_guids[joysticks_present++] = lpddi->guidInstance;
if (joysticks_present >= MAX_JOYSTICKS)
return DIENUM_STOP;
return DIENUM_CONTINUE;
}
BOOL CALLBACK DIEnumDeviceObjectsCallback(
LPCDIDEVICEOBJECTINSTANCE lpddoi,
LPVOID pvRef)
{
plat_joystick_t *state = (plat_joystick_t *)pvRef;
if (lpddoi->guidType == GUID_XAxis || lpddoi->guidType == GUID_YAxis || lpddoi->guidType == GUID_ZAxis ||
lpddoi->guidType == GUID_RxAxis || lpddoi->guidType == GUID_RyAxis || lpddoi->guidType == GUID_RzAxis ||
lpddoi->guidType == GUID_Slider)
{
memcpy(state->axis[state->nr_axes].name, lpddoi->tszName, strlen(lpddoi->tszName) + 1);
joystick_log("Axis %i : %s %x %x\n", state->nr_axes, state->axis[state->nr_axes].name, lpddoi->dwOfs, lpddoi->dwType);
if (lpddoi->guidType == GUID_XAxis)
state->axis[state->nr_axes].id = 0;
else if (lpddoi->guidType == GUID_YAxis)
state->axis[state->nr_axes].id = 1;
else if (lpddoi->guidType == GUID_ZAxis)
state->axis[state->nr_axes].id = 2;
else if (lpddoi->guidType == GUID_RxAxis)
state->axis[state->nr_axes].id = 3;
else if (lpddoi->guidType == GUID_RyAxis)
state->axis[state->nr_axes].id = 4;
else if (lpddoi->guidType == GUID_RzAxis)
state->axis[state->nr_axes].id = 5;
state->nr_axes++;
}
else if (lpddoi->guidType == GUID_Button)
{
memcpy(state->button[state->nr_buttons].name, lpddoi->tszName, strlen(lpddoi->tszName) + 1);
joystick_log("Button %i : %s %x %x\n", state->nr_buttons, state->button[state->nr_buttons].name, lpddoi->dwOfs, lpddoi->dwType);
state->nr_buttons++;
}
else if (lpddoi->guidType == GUID_POV)
{
memcpy(state->pov[state->nr_povs].name, lpddoi->tszName, strlen(lpddoi->tszName) + 1);
joystick_log("POV %i : %s %x %x\n", state->nr_povs, state->pov[state->nr_povs].name, lpddoi->dwOfs, lpddoi->dwType);
state->nr_povs++;
}
return DIENUM_CONTINUE;
}
void joystick_init()
{
int c;
atexit(joystick_close);
joysticks_present = 0;
if (FAILED(DirectInput8Create(hinstance, DIRECTINPUT_VERSION, IID_IDirectInput8A, (void **) &lpdi, NULL)))
fatal("joystick_init : DirectInputCreate failed\n");
if (FAILED(lpdi->EnumDevices(DIDEVTYPE_JOYSTICK, joystick_enum_callback, NULL, DIEDFL_ATTACHEDONLY)))
fatal("joystick_init : EnumDevices failed\n");
joystick_log("joystick_init: joysticks_present=%i\n", joysticks_present);
for (c = 0; c < joysticks_present; c++)
{
LPDIRECTINPUTDEVICE8 lpdi_joystick_temp = NULL;
DIPROPRANGE joy_axis_range;
DIDEVICEINSTANCE device_instance;
DIDEVCAPS devcaps;
if (FAILED(lpdi->CreateDevice(joystick_guids[c], &lpdi_joystick_temp, NULL)))
fatal("joystick_init : CreateDevice failed\n");
if (FAILED(lpdi_joystick_temp->QueryInterface(IID_IDirectInputDevice8, (void **)&lpdi_joystick[c])))
fatal("joystick_init : CreateDevice failed\n");
lpdi_joystick_temp->Release();
memset(&device_instance, 0, sizeof(device_instance));
device_instance.dwSize = sizeof(device_instance);
if (FAILED(lpdi_joystick[c]->GetDeviceInfo(&device_instance)))
fatal("joystick_init : GetDeviceInfo failed\n");
joystick_log("Joystick %i :\n", c);
joystick_log(" tszInstanceName = %s\n", device_instance.tszInstanceName);
joystick_log(" tszProductName = %s\n", device_instance.tszProductName);
memcpy(plat_joystick_state[c].name, device_instance.tszInstanceName, strlen(device_instance.tszInstanceName) + 1);
memset(&devcaps, 0, sizeof(devcaps));
devcaps.dwSize = sizeof(devcaps);
if (FAILED(lpdi_joystick[c]->GetCapabilities(&devcaps)))
fatal("joystick_init : GetCapabilities failed\n");
joystick_log(" Axes = %i\n", devcaps.dwAxes);
joystick_log(" Buttons = %i\n", devcaps.dwButtons);
joystick_log(" POVs = %i\n", devcaps.dwPOVs);
lpdi_joystick[c]->EnumObjects(DIEnumDeviceObjectsCallback, &plat_joystick_state[c], DIDFT_ALL);
if (FAILED(lpdi_joystick[c]->SetCooperativeLevel(hwndMain, DISCL_BACKGROUND | DISCL_NONEXCLUSIVE)))
fatal("joystick_init : SetCooperativeLevel failed\n");
if (FAILED(lpdi_joystick[c]->SetDataFormat(&c_dfDIJoystick)))
fatal("joystick_init : SetDataFormat failed\n");
joy_axis_range.lMin = -32768;
joy_axis_range.lMax = 32767;
joy_axis_range.diph.dwSize = sizeof(DIPROPRANGE);
joy_axis_range.diph.dwHeaderSize = sizeof(DIPROPHEADER);
joy_axis_range.diph.dwHow = DIPH_BYOFFSET;
joy_axis_range.diph.dwObj = DIJOFS_X;
lpdi_joystick[c]->SetProperty(DIPROP_RANGE, &joy_axis_range.diph);
joy_axis_range.diph.dwObj = DIJOFS_Y;
lpdi_joystick[c]->SetProperty(DIPROP_RANGE, &joy_axis_range.diph);
joy_axis_range.diph.dwObj = DIJOFS_Z;
lpdi_joystick[c]->SetProperty(DIPROP_RANGE, &joy_axis_range.diph);
joy_axis_range.diph.dwObj = DIJOFS_RX;
lpdi_joystick[c]->SetProperty(DIPROP_RANGE, &joy_axis_range.diph);
joy_axis_range.diph.dwObj = DIJOFS_RY;
lpdi_joystick[c]->SetProperty(DIPROP_RANGE, &joy_axis_range.diph);
joy_axis_range.diph.dwObj = DIJOFS_RZ;
lpdi_joystick[c]->SetProperty(DIPROP_RANGE, &joy_axis_range.diph);
if (FAILED(lpdi_joystick[c]->Acquire()))
fatal("joystick_init : Acquire failed\n");
}
}
void joystick_close()
{
if (lpdi_joystick[1])
{
lpdi_joystick[1]->Release();
lpdi_joystick[1] = NULL;
}
if (lpdi_joystick[0])
{
lpdi_joystick[0]->Release();
lpdi_joystick[0] = NULL;
}
}
static int joystick_get_axis(int joystick_nr, int mapping)
{
if (mapping & POV_X)
{
int pov = plat_joystick_state[joystick_nr].p[mapping & 3];
if (LOWORD(pov) == 0xFFFF)
return 0;
else
return sin((2*M_PI * (double)pov) / 36000.0) * 32767;
}
else if (mapping & POV_Y)
{
int pov = plat_joystick_state[joystick_nr].p[mapping & 3];
if (LOWORD(pov) == 0xFFFF)
return 0;
else
return -cos((2*M_PI * (double)pov) / 36000.0) * 32767;
}
else
return plat_joystick_state[joystick_nr].a[plat_joystick_state[joystick_nr].axis[mapping].id];
}
void joystick_process(void)
{
int c, d;
if (joystick_type == 7) return;
for (c = 0; c < joysticks_present; c++)
{
DIJOYSTATE joystate;
int b;
if (FAILED(lpdi_joystick[c]->Poll()))
{
lpdi_joystick[c]->Acquire();
lpdi_joystick[c]->Poll();
}
if (FAILED(lpdi_joystick[c]->GetDeviceState(sizeof(DIJOYSTATE), (LPVOID)&joystate)))
{
lpdi_joystick[c]->Acquire();
lpdi_joystick[c]->Poll();
lpdi_joystick[c]->GetDeviceState(sizeof(DIJOYSTATE), (LPVOID)&joystate);
}
plat_joystick_state[c].a[0] = joystate.lX;
plat_joystick_state[c].a[1] = joystate.lY;
plat_joystick_state[c].a[2] = joystate.lZ;
plat_joystick_state[c].a[3] = joystate.lRx;
plat_joystick_state[c].a[4] = joystate.lRy;
plat_joystick_state[c].a[5] = joystate.lRz;
for (b = 0; b < 16; b++)
plat_joystick_state[c].b[b] = joystate.rgbButtons[b] & 0x80;
for (b = 0; b < 4; b++)
plat_joystick_state[c].p[b] = joystate.rgdwPOV[b];
// joystick_log("joystick %i - x=%i y=%i b[0]=%i b[1]=%i %i\n", c, joystick_state[c].x, joystick_state[c].y, joystick_state[c].b[0], joystick_state[c].b[1], joysticks_present);
}
for (c = 0; c < joystick_get_max_joysticks(joystick_type); c++)
{
if (joystick_state[c].plat_joystick_nr)
{
int joystick_nr = joystick_state[c].plat_joystick_nr - 1;
for (d = 0; d < joystick_get_axis_count(joystick_type); d++)
joystick_state[c].axis[d] = joystick_get_axis(joystick_nr, joystick_state[c].axis_mapping[d]);
for (d = 0; d < joystick_get_button_count(joystick_type); d++)
joystick_state[c].button[d] = plat_joystick_state[joystick_nr].b[joystick_state[c].button_mapping[d]];
for (d = 0; d < joystick_get_pov_count(joystick_type); d++)
{
int x, y;
double angle, magnitude;
x = joystick_get_axis(joystick_nr, joystick_state[c].pov_mapping[d][0]);
y = joystick_get_axis(joystick_nr, joystick_state[c].pov_mapping[d][1]);
angle = (atan2((double)y, (double)x) * 360.0) / (2*M_PI);
magnitude = sqrt((double)x*(double)x + (double)y*(double)y);
if (magnitude < 16384)
joystick_state[c].pov[d] = -1;
else
joystick_state[c].pov[d] = ((int)angle + 90 + 360) % 360;
}
}
else
{
for (d = 0; d < joystick_get_axis_count(joystick_type); d++)
joystick_state[c].axis[d] = 0;
for (d = 0; d < joystick_get_button_count(joystick_type); d++)
joystick_state[c].button[d] = 0;
for (d = 0; d < joystick_get_pov_count(joystick_type); d++)
joystick_state[c].pov[d] = -1;
}
}
}
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