mirror of
https://github.com/libretro/ppsspp.git
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329 lines
8.7 KiB
C++
329 lines
8.7 KiB
C++
// Copyright (c) 2012- PPSSPP Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0 or later versions.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official git repository and contact information can be found at
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// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
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#include <limits.h>
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#include <algorithm>
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#include "Core/HLE/sceCtrl.h"
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#include "DinputDevice.h"
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#include "ControlMapping.h"
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#include "Core/Config.h"
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#include "input/input_state.h"
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#include "base/NativeApp.h"
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#include "input/keycodes.h"
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#include "Core/Reporting.h"
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#include "Xinput.h"
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#pragma comment(lib,"dinput8.lib")
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#ifdef min
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#undef min
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#undef max
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#endif
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//initialize static members of DinputDevice
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unsigned int DinputDevice::pInstances = 0;
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LPDIRECTINPUT8 DinputDevice::pDI = NULL;
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std::vector<DIDEVICEINSTANCE> DinputDevice::devices;
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// In order from 0. There can be 128, but most controllers do not have that many.
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static const int dinput_buttons[] = {
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NKCODE_BUTTON_1,
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NKCODE_BUTTON_2,
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NKCODE_BUTTON_3,
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NKCODE_BUTTON_4,
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NKCODE_BUTTON_5,
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NKCODE_BUTTON_6,
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NKCODE_BUTTON_7,
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NKCODE_BUTTON_8,
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NKCODE_BUTTON_9,
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NKCODE_BUTTON_10,
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NKCODE_BUTTON_11,
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NKCODE_BUTTON_12,
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NKCODE_BUTTON_13,
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NKCODE_BUTTON_14,
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NKCODE_BUTTON_15,
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NKCODE_BUTTON_16,
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};
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static float NormalizedDeadzoneFilter(short value);
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#define DIFF (JOY_POVRIGHT - JOY_POVFORWARD) / 2
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#define JOY_POVFORWARD_RIGHT JOY_POVFORWARD + DIFF
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#define JOY_POVRIGHT_BACKWARD JOY_POVRIGHT + DIFF
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#define JOY_POVBACKWARD_LEFT JOY_POVBACKWARD + DIFF
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#define JOY_POVLEFT_FORWARD JOY_POVLEFT + DIFF
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struct XINPUT_DEVICE_NODE {
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DWORD dwVidPid;
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XINPUT_DEVICE_NODE* pNext;
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};
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XINPUT_DEVICE_NODE* g_pXInputDeviceList = NULL;
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bool IsXInputDevice( const GUID* pGuidProductFromDirectInput ) {
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XINPUT_DEVICE_NODE* pNode = g_pXInputDeviceList;
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while( pNode )
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{
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if( pNode->dwVidPid == pGuidProductFromDirectInput->Data1 )
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return true;
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pNode = pNode->pNext;
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}
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return false;
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}
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LPDIRECTINPUT8 DinputDevice::getPDI()
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{
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if (pDI == NULL)
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{
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if (FAILED(DirectInput8Create(GetModuleHandle(NULL), DIRECTINPUT_VERSION, IID_IDirectInput8, (void**)&pDI, NULL)))
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{
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pDI = NULL;
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}
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}
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return pDI;
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}
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BOOL CALLBACK DinputDevice::DevicesCallback(
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LPCDIDEVICEINSTANCE lpddi,
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LPVOID pvRef
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)
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{
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//check if a device with the same Instance guid is already saved
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auto res = std::find_if(devices.begin(), devices.end(),
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[lpddi](const DIDEVICEINSTANCE &to_consider){
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return lpddi->guidInstance == to_consider.guidInstance;
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});
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if (res == devices.end()) //not yet in the devices list
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{
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// Ignore if device supports XInput
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if (!IsXInputDevice(&lpddi->guidProduct)) {
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devices.push_back(*lpddi);
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}
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}
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return DIENUM_CONTINUE;
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}
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void DinputDevice::getDevices()
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{
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if (devices.empty())
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{
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getPDI()->EnumDevices(DI8DEVCLASS_GAMECTRL, &DinputDevice::DevicesCallback, NULL, DIEDFL_ATTACHEDONLY);
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}
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}
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DinputDevice::DinputDevice(int devnum) {
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pInstances++;
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pDevNum = devnum;
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pJoystick = NULL;
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memset(lastButtons_, 0, sizeof(lastButtons_));
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memset(lastPOV_, 0, sizeof(lastPOV_));
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last_lX_ = 0;
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last_lY_ = 0;
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last_lZ_ = 0;
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last_lRx_ = 0;
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last_lRy_ = 0;
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last_lRz_ = 0;
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if (getPDI() == NULL)
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{
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return;
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}
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if (devnum >= MAX_NUM_PADS)
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{
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return;
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}
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getDevices();
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if ( (devnum >= (int)devices.size()) || FAILED(getPDI()->CreateDevice(devices.at(devnum).guidInstance, &pJoystick, NULL)))
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{
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return;
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}
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if (FAILED(pJoystick->SetDataFormat(&c_dfDIJoystick2))) {
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pJoystick->Release();
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pJoystick = NULL;
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return;
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}
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DIPROPRANGE diprg;
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diprg.diph.dwSize = sizeof(DIPROPRANGE);
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diprg.diph.dwHeaderSize = sizeof(DIPROPHEADER);
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diprg.diph.dwHow = DIPH_DEVICE;
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diprg.diph.dwObj = 0;
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diprg.lMin = -10000;
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diprg.lMax = 10000;
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analog = FAILED(pJoystick->SetProperty(DIPROP_RANGE, &diprg.diph)) ? false : true;
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// Other devices suffer if the deadzone is not set.
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// TODO: The dead zone will be made configurable in the Control dialog.
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DIPROPDWORD dipw;
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dipw.diph.dwSize = sizeof(DIPROPDWORD);
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dipw.diph.dwHeaderSize = sizeof(DIPROPHEADER);
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dipw.diph.dwHow = DIPH_DEVICE;
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dipw.diph.dwObj = 0;
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// dwData 1000 is deadzone(0% - 10%)
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dipw.dwData = 1000;
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analog |= FAILED(pJoystick->SetProperty(DIPROP_DEADZONE, &dipw.diph)) ? false : true;
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}
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DinputDevice::~DinputDevice() {
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if (pJoystick) {
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pJoystick->Release();
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pJoystick = NULL;
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}
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pInstances--;
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//the whole instance counter is obviously highly thread-unsafe
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//but I don't think creation and destruction operations will be
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//happening at the same time and other values like pDI are
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//unsafe as well anyway
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if (pInstances == 0 && pDI) {
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pDI->Release();
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pDI = NULL;
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}
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}
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void SendNativeAxis(int deviceId, short value, short &lastValue, int axisId) {
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if (value == lastValue)
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return;
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AxisInput axis;
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axis.deviceId = deviceId;
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axis.axisId = axisId;
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axis.value = NormalizedDeadzoneFilter(value);
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NativeAxis(axis);
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lastValue = value;
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}
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int DinputDevice::UpdateState(InputState &input_state) {
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if (!pJoystick) return -1;
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DIJOYSTATE2 js;
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if (FAILED(pJoystick->Poll())) {
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if(pJoystick->Acquire() == DIERR_INPUTLOST)
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return -1;
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}
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if(FAILED(pJoystick->GetDeviceState(sizeof(DIJOYSTATE2), &js)))
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return -1;
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ApplyButtons(js, input_state);
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if (analog) {
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AxisInput axis;
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axis.deviceId = DEVICE_ID_PAD_0 + pDevNum;
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SendNativeAxis(DEVICE_ID_PAD_0 + pDevNum, js.lX, last_lX_, JOYSTICK_AXIS_X);
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SendNativeAxis(DEVICE_ID_PAD_0 + pDevNum, js.lY, last_lY_, JOYSTICK_AXIS_Y);
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SendNativeAxis(DEVICE_ID_PAD_0 + pDevNum, js.lZ, last_lZ_, JOYSTICK_AXIS_Z);
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SendNativeAxis(DEVICE_ID_PAD_0 + pDevNum, js.lRx, last_lRx_, JOYSTICK_AXIS_RX);
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SendNativeAxis(DEVICE_ID_PAD_0 + pDevNum, js.lRy, last_lRy_, JOYSTICK_AXIS_RY);
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SendNativeAxis(DEVICE_ID_PAD_0 + pDevNum, js.lRz, last_lRz_, JOYSTICK_AXIS_RZ);
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}
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//check if the values have changed from last time and skip polling the rest of the dinput devices if they did
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//this doesn't seem to quite work if only the axis have changed
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if ((memcmp(js.rgbButtons, pPrevState.rgbButtons, sizeof(BYTE) * 128) != 0)
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|| (memcmp(js.rgdwPOV, pPrevState.rgdwPOV, sizeof(DWORD) * 4) != 0)
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|| js.lVX != 0 || js.lVY != 0 || js.lVZ != 0 || js.lVRx != 0 || js.lVRy != 0 || js.lVRz != 0)
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{
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pPrevState = js;
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return UPDATESTATE_SKIP_PAD;
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}
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return -1;
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}
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static float NormalizedDeadzoneFilter(short value) {
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float result = (float)value / 10000.0f;
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// Expand and clamp. Hack to let us reach the corners on most pads.
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result = std::min(1.0f, std::max(result * 1.2f, -1.0f));
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return result;
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}
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void DinputDevice::ApplyButtons(DIJOYSTATE2 &state, InputState &input_state) {
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BYTE *buttons = state.rgbButtons;
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u32 downMask = 0x80;
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for (int i = 0; i < ARRAY_SIZE(dinput_buttons); ++i) {
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if (state.rgbButtons[i] == lastButtons_[i]) {
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continue;
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}
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bool down = (state.rgbButtons[i] & downMask) == downMask;
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KeyInput key;
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key.deviceId = DEVICE_ID_PAD_0 + pDevNum;
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key.flags = down ? KEY_DOWN : KEY_UP;
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key.keyCode = dinput_buttons[i];
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NativeKey(key);
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lastButtons_[i] = state.rgbButtons[i];
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}
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// Now the POV hat, which can technically go in any degree but usually does not.
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if (LOWORD(state.rgdwPOV[0]) != lastPOV_[0]) {
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KeyInput dpad[4];
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for (int i = 0; i < 4; ++i) {
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dpad[i].deviceId = DEVICE_ID_PAD_0 + pDevNum;
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dpad[i].flags = KEY_UP;
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}
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dpad[0].keyCode = NKCODE_DPAD_UP;
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dpad[1].keyCode = NKCODE_DPAD_LEFT;
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dpad[2].keyCode = NKCODE_DPAD_DOWN;
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dpad[3].keyCode = NKCODE_DPAD_RIGHT;
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if (LOWORD(state.rgdwPOV[0]) != JOY_POVCENTERED) {
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// These are the edges, so we use or.
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if (state.rgdwPOV[0] >= JOY_POVLEFT_FORWARD || state.rgdwPOV[0] <= JOY_POVFORWARD_RIGHT) {
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dpad[0].flags = KEY_DOWN;
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}
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if (state.rgdwPOV[0] >= JOY_POVBACKWARD_LEFT && state.rgdwPOV[0] <= JOY_POVLEFT_FORWARD) {
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dpad[1].flags = KEY_DOWN;
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}
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if (state.rgdwPOV[0] >= JOY_POVRIGHT_BACKWARD && state.rgdwPOV[0] <= JOY_POVBACKWARD_LEFT) {
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dpad[2].flags = KEY_DOWN;
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}
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if (state.rgdwPOV[0] >= JOY_POVFORWARD_RIGHT && state.rgdwPOV[0] <= JOY_POVRIGHT_BACKWARD) {
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dpad[3].flags = KEY_DOWN;
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}
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}
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NativeKey(dpad[0]);
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NativeKey(dpad[1]);
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NativeKey(dpad[2]);
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NativeKey(dpad[3]);
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lastPOV_[0] = LOWORD(state.rgdwPOV[0]);
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}
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}
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size_t DinputDevice::getNumPads()
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{
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if (devices.empty())
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{
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getDevices();
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}
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return devices.size();
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}
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