replace directinput joystick APIs with SDL (#41)

ISLE/isleapp.cpp

@@ -236,7 +236,7 @@ SDL_AppResult SDL_AppInit(void** appstate, int argc, char** argv)
 {
 	*appstate = NULL;
 
-	if (!SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO)) {
+	if (!SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_JOYSTICK)) {
 		SDL_ShowSimpleMessageBox(
 			SDL_MESSAGEBOX_ERROR,
 			"LEGO® Island Error",

LEGO1/lego/legoomni/include/legoinputmanager.h

@@ -7,8 +7,9 @@
 #include "mxpresenter.h"
 #include "mxqueue.h"
 
+#include <SDL3/SDL_joystick.h>
 #include <SDL3/SDL_keyboard.h>
-#include <dinput.h>
+#include <windows.h>
 
 class LegoCameraController;
 class LegoControlManager;
@@ -95,8 +96,8 @@ class LegoInputManager : public MxPresenter {
 
 	MxResult Create(HWND p_hwnd);
 	void Destroy() override;
-	MxResult GetJoystickId();
+	MxResult GetJoystick();
-	MxResult GetJoystickState(MxU32* p_joystickX, MxU32* p_joystickY, DWORD* p_buttonsState, MxU32* p_povPosition);
+	MxResult GetJoystickState(MxU32* p_joystickX, MxU32* p_joystickY, MxU32* p_povPosition);
 	void StartAutoDragTimer();
 	void StopAutoDragTimer();
 	void EnableInputProcessing();
@@ -151,9 +152,9 @@ class LegoInputManager : public MxPresenter {
 	MxBool m_unk0x88;                     // 0x88
 	const bool* m_keyboardState;
 	MxBool m_unk0x195; // 0x195
-	MxS32 m_joyid;         // 0x198
+	SDL_JoystickID* m_joyids;
+	SDL_Joystick* m_joystick;
 	MxS32 m_joystickIndex; // 0x19c
-	JOYCAPS m_joyCaps;     // 0x200
 	MxBool m_useJoystick;  // 0x334
 	MxBool m_unk0x335;     // 0x335
 	MxBool m_unk0x336;     // 0x336

LEGO1/lego/legoomni/src/entity/legonavcontroller.cpp

@@ -499,12 +499,10 @@ MxResult LegoNavController::ProcessJoystickInput(MxBool& p_und)
 	if (instance->GetInputManager()) {
 		MxS32 joystickX;
 		MxS32 joystickY;
-		DWORD buttonState;
 		MxS32 povPosition;
 
 		if (instance->GetInputManager()
-				->GetJoystickState((MxU32*) &joystickX, (MxU32*) &joystickY, &buttonState, (MxU32*) &povPosition) !=
+				->GetJoystickState((MxU32*) &joystickX, (MxU32*) &joystickY, (MxU32*) &povPosition) != FAILURE) {
-			FAILURE) {
 			MxU32 yVal = (joystickY * m_vMax) / 100;
 			MxU32 xVal = (joystickX * m_hMax) / 100;
 

LEGO1/lego/legoomni/src/input/legoinputmanager.cpp

@@ -40,8 +40,9 @@ LegoInputManager::LegoInputManager()
 	m_unk0x81 = FALSE;
 	m_unk0x88 = FALSE;
 	m_unk0x195 = 0;
-	m_joyid = -1;
+	m_joyids = NULL;
 	m_joystickIndex = -1;
+	m_joystick = NULL;
 	m_useJoystick = FALSE;
 	m_unk0x335 = FALSE;
 	m_unk0x336 = FALSE;
@@ -77,7 +78,7 @@ MxResult LegoInputManager::Create(HWND p_hwnd)
 		m_eventQueue = new LegoEventQueue;
 	}
 
-	GetJoystickId();
+	GetJoystick();
 
 	if (!m_keyboardNotifyList || !m_eventQueue) {
 		Destroy();
@@ -148,29 +149,27 @@ MxResult LegoInputManager::GetNavigationKeyStates(MxU32& p_keyFlags)
 }
 
 // FUNCTION: LEGO1 0x1005c240
-MxResult LegoInputManager::GetJoystickId()
+MxResult LegoInputManager::GetJoystick()
 {
-	JOYINFOEX joyinfoex;
+	if (m_joystick != NULL && SDL_JoystickConnected(m_joystick) == TRUE) {
+		return SUCCESS;
+	}
 
-	if (m_useJoystick != FALSE) {
+	MxS32 numJoysticks = 0;
+	m_joyids = SDL_GetJoysticks(&numJoysticks);
+
+	if (m_useJoystick != FALSE && numJoysticks != 0) {
 		MxS32 joyid = m_joystickIndex;
 		if (joyid >= 0) {
-			joyinfoex.dwSize = 0x34;
+			m_joystick = SDL_OpenJoystick(m_joyids[joyid]);
-			joyinfoex.dwFlags = 0xFF;
+			if (m_joystick != NULL) {
-
-			if (joyGetPosEx(joyid, &joyinfoex) == JOYERR_NOERROR &&
-				joyGetDevCaps(joyid, &m_joyCaps, 0x194) == JOYERR_NOERROR) {
-				m_joyid = joyid;
 				return SUCCESS;
 			}
 		}
 
-		for (joyid = JOYSTICKID1; joyid < 16; joyid++) {
+		for (joyid = 0; joyid < numJoysticks; joyid++) {
-			joyinfoex.dwSize = 0x34;
+			m_joystick = SDL_OpenJoystick(m_joyids[joyid]);
-			joyinfoex.dwFlags = 0xFF;
+			if (m_joystick != NULL) {
-			if (joyGetPosEx(joyid, &joyinfoex) == JOYERR_NOERROR &&
-				joyGetDevCaps(joyid, &m_joyCaps, 0x194) == JOYERR_NOERROR) {
-				m_joyid = joyid;
 				return SUCCESS;
 			}
 		}
@@ -180,56 +179,62 @@ MxResult LegoInputManager::GetJoystickId()
 }
 
 // FUNCTION: LEGO1 0x1005c320
-MxResult LegoInputManager::GetJoystickState(
+MxResult LegoInputManager::GetJoystickState(MxU32* p_joystickX, MxU32* p_joystickY, MxU32* p_povPosition)
-	MxU32* p_joystickX,
-	MxU32* p_joystickY,
-	DWORD* p_buttonsState,
-	MxU32* p_povPosition
-)
 {
 	if (m_useJoystick != FALSE) {
-		if (m_joyid < 0 && GetJoystickId() == -1) {
+		if (GetJoystick() == -1) {
-			m_useJoystick = FALSE;
+			if (m_joystick != NULL) {
+				// GetJoystick() failed but handle to joystick is still open, close it
+				SDL_CloseJoystick(m_joystick);
+				m_joystick = NULL;
+			}
+
 			return FAILURE;
 		}
 
-		JOYINFOEX joyinfoex;
+		MxS16 xPos = SDL_GetJoystickAxis(m_joystick, 0);
-		joyinfoex.dwSize = 0x34;
+		MxS16 yPos = SDL_GetJoystickAxis(m_joystick, 1);
-		joyinfoex.dwFlags = JOY_RETURNX | JOY_RETURNY | JOY_RETURNBUTTONS;
+		MxU8 hatPos = SDL_GetJoystickHat(m_joystick, 0);
-		MxU32 capabilities = m_joyCaps.wCaps;
 
-		if ((capabilities & JOYCAPS_HASPOV) != 0) {
+		// normalize values acquired from joystick axes
-			joyinfoex.dwFlags = JOY_RETURNX | JOY_RETURNY | JOY_RETURNPOV | JOY_RETURNBUTTONS;
+		*p_joystickX = ((xPos + 32768) * 100) / 65535;
+		*p_joystickY = ((yPos + 32768) * 100) / 65535;
 
-			if ((capabilities & JOYCAPS_POVCTS) != 0) {
+		switch (hatPos) {
-				joyinfoex.dwFlags = JOY_RETURNX | JOY_RETURNY | JOY_RETURNPOV | JOY_RETURNBUTTONS | JOY_RETURNPOVCTS;
+		case SDL_HAT_CENTERED:
-			}
-		}
-
-		MMRESULT mmresult = joyGetPosEx(m_joyid, &joyinfoex);
-
-		if (mmresult == MMSYSERR_NOERROR) {
-			*p_buttonsState = joyinfoex.dwButtons;
-			MxU32 xmin = m_joyCaps.wXmin;
-			MxU32 ymax = m_joyCaps.wYmax;
-			MxU32 ymin = m_joyCaps.wYmin;
-			MxS32 ydiff = ymax - ymin;
-			*p_joystickX = ((joyinfoex.dwXpos - xmin) * 100) / (m_joyCaps.wXmax - xmin);
-			*p_joystickY = ((joyinfoex.dwYpos - m_joyCaps.wYmin) * 100) / ydiff;
-			if ((m_joyCaps.wCaps & (JOYCAPS_POV4DIR | JOYCAPS_POVCTS)) != 0) {
-				if (joyinfoex.dwPOV == JOY_POVCENTERED) {
 			*p_povPosition = (MxU32) -1;
-					return SUCCESS;
+			break;
-				}
+		case SDL_HAT_UP:
-				*p_povPosition = joyinfoex.dwPOV / 100;
+			*p_povPosition = (MxU32) 0;
-				return SUCCESS;
+			break;
-			}
+		case SDL_HAT_RIGHT:
-			else {
+			*p_povPosition = (MxU32) 9000 / 100;
+			break;
+		case SDL_HAT_DOWN:
+			*p_povPosition = (MxU32) 18000 / 100;
+			break;
+		case SDL_HAT_LEFT:
+			*p_povPosition = (MxU32) 27000 / 100;
+			break;
+		case SDL_HAT_RIGHTUP:
+			*p_povPosition = (MxU32) 4500 / 100;
+			break;
+		case SDL_HAT_RIGHTDOWN:
+			*p_povPosition = (MxU32) 13500 / 100;
+			break;
+		case SDL_HAT_LEFTUP:
+			*p_povPosition = (MxU32) 31500 / 100;
+			break;
+		case SDL_HAT_LEFTDOWN:
+			*p_povPosition = (MxU32) 22500 / 100;
+			break;
+		default:
 			*p_povPosition = (MxU32) -1;
+			break;
+		}
+
 		return SUCCESS;
 	}
-		}
-	}
 
 	return FAILURE;
 }

README.md

@@ -27,7 +27,7 @@ To achieve our goal of platform independence, we need to replace any Windows-onl
 | Filesystem | [SDL3](https://www.libsdl.org/) | ✅ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable+%22%2F%2F+%5Blibrary%3Afilesystem%5D%22&type=code) |
 | Threads, Mutexes (Synchronization) | [SDL3](https://www.libsdl.org/) | ✅ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable+%22%2F%2F+%5Blibrary%3Asynchronization%5D%22&type=code) |
 | Keyboard/Mouse, DirectInput (Input) | [SDL3](https://www.libsdl.org/) | ✅ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable+%22%2F%2F+%5Blibrary%3Ainput%5D%22&type=code) |
-| Joystick/Gamepad, DirectInput (Input) | [SDL3](https://www.libsdl.org/) | ❌ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable+%22%2F%2F+%5Blibrary%3Ainput%5D%22&type=code) |
+| Joystick/Gamepad, DirectInput (Input) | [SDL3](https://www.libsdl.org/) | ✅ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable+%22%2F%2F+%5Blibrary%3Ainput%5D%22&type=code) |
 | WinMM, DirectSound (Audio) | [SDL3](https://www.libsdl.org/), [miniaudio](https://miniaud.io/) | ✅ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable+%22%2F%2F+%5Blibrary%3Aaudio%5D%22&type=code) |
 | DirectDraw (2D video) | [SDL3](https://www.libsdl.org/) | ❌ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable+%22%2F%2F+%5Blibrary%3A2d%5D%22&type=code) |
 | [Smacker](https://github.com/isledecomp/isle/tree/master/3rdparty/smacker) | [libsmacker](https://github.com/foxtacles/libsmacker) | ✅ | [Remarks](https://github.com/search?q=repo%3Aisledecomp%2Fisle-portable%20%22%2F%2F%20%5Blibrary%3Alibsmacker%5D%22&type=code) |