inputsystem: touch event handling

inputsystem/inputsystem.cpp

@@ -31,7 +31,6 @@ EXPOSE_SINGLE_INTERFACE_GLOBALVAR( CInputSystem, IInputSystem,
 						INPUTSYSTEM_INTERFACE_VERSION, g_InputSystem );
 
 
-
 #if defined( WIN32 ) && !defined( _X360 )
 typedef BOOL (WINAPI *RegisterRawInputDevices_t)
 (
@@ -70,6 +69,7 @@ CInputSystem::CInputSystem()
 	m_JoysticksEnabled.ClearAllFlags();
 	m_nJoystickCount = 0;
 	m_bJoystickInitialized = false;
+	m_bTouchInitialized = false;
 	m_nPollCount = 0;
 	m_PrimaryUserId = INVALID_USER_ID;
 	m_uiMouseWheel = 0;
@@ -166,6 +166,10 @@ InitReturnVal_t CInputSystem::Init()
 	ButtonCode_UpdateScanCodeLayout();
 
 	joy_xcontroller_found.SetValue( 0 );
+	
+	if( !m_bConsoleTextMode )
+		InitializeTouch();
+	
 	if ( IsPC() && !m_bConsoleTextMode )
 	{
 		InitializeJoysticks();
@@ -1526,6 +1530,16 @@ bool CInputSystem::GetRawMouseAccumulators( int& accumX, int& accumY )
 #endif
 }
 
+bool CInputSystem::GetTouchAccumulators( InputEventType_t &event, int &fingerId, int& accumX, int& accumY )
+{
+	event = m_touchAccumEvent;
+	fingerId = m_touchAccumFingerId;
+	accumX = m_touchAccumX;
+	accumY = m_touchAccumY;
+
+	return m_bJoystickInitialized;
+}
+
 void CInputSystem::SetConsoleTextMode( bool bConsoleTextMode )
 {
 	/* If someone calls this after init, shut it down. */

inputsystem/inputsystem.h

@@ -101,6 +101,8 @@ public:
 	virtual void *GetHapticsInterfaceAddress() const { return NULL;}	
 #endif
 	bool GetRawMouseAccumulators( int& accumX, int& accumY );
+	bool GetTouchAccumulators( InputEventType_t &event, int &fingerId, int& accumX, int& accumY );
+
 	virtual void SetConsoleTextMode( bool bConsoleTextMode );
 
 	// Windows proc
@@ -240,6 +242,13 @@ public:
 
 	// Record button state and post the event
 	void JoystickButtonEvent( ButtonCode_t button, int sample );
+	
+	// Init touch
+	void InitializeTouch( void );
+	
+	// Shut down touch	
+	void ShutdownTouch( void );
+	
 
 #if defined( WIN32 ) && !defined ( _X360 )
 	// NVNT attaches window to novint devices
@@ -324,6 +333,11 @@ public:
 	void JoystickButtonRelease( int joystickId, int button ); // same as above.
 	void JoystickAxisMotion( int joystickId, int axis, int value );
 
+	void FingerDown( int fingerId, int x, int y );	
+	void FingerUp( int fingerId, int x, int y );	
+	void FingerMotion( int fingerId, int x, int y );	
+	
+	
 	// Steam Controller
 	void ReadSteamController( int iIndex );
 	void PostKeyEvent( int iIndex, sKey_t sKey, int nSample );
@@ -390,6 +404,7 @@ public:
 	CUtlFlags<unsigned short> m_JoysticksEnabled;
 	int m_nJoystickCount;
 	bool m_bJoystickInitialized;
+	bool m_bTouchInitialized;
 	bool m_bXController;
 	JoystickInfo_t m_pJoystickInfo[ MAX_JOYSTICKS ];
 
@@ -444,6 +459,9 @@ public:
 	bool m_bRawInputSupported;
 	int	 m_mouseRawAccumX, m_mouseRawAccumY;
 
+	InputEventType_t m_touchAccumEvent;
+	int m_touchAccumFingerId, m_touchAccumX, m_touchAccumY;
+
 	// For the 'SleepUntilInput' feature
 	HANDLE m_hEvent;
 

inputsystem/touch_sdl.cpp

@@ -0,0 +1,98 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: Linux/Android touch implementation for inputsystem
+//
+//===========================================================================//
+
+/* For force feedback testing. */
+#include "inputsystem.h"
+#include "tier1/convar.h"
+#include "tier0/icommandline.h"
+#include "SDL.h"
+#include "SDL_touch.h"
+// NOTE: This has to be the last file included!
+#include "tier0/memdbgon.h"
+
+//-----------------------------------------------------------------------------
+// Handle the events coming from the Touch SDL subsystem.
+//-----------------------------------------------------------------------------
+int TouchSDLWatcher( void *userInfo, SDL_Event *event )
+{
+	CInputSystem *pInputSystem = (CInputSystem *)userInfo;
+
+	SDL_Window *window = SDL_GetWindowFromID(event->tfinger.windowID);
+	if( !window )
+		return 0;
+	
+	int width, height;
+	width = height = 0;
+	SDL_GetWindowSize(window, &width, &height);
+	
+	switch ( event->type ) {
+	case SDL_FINGERDOWN:
+		pInputSystem->FingerDown( event->tfinger.fingerId, event->tfinger.x*width, event->tfinger.y*height );
+		break;
+	case SDL_FINGERUP:
+		pInputSystem->FingerUp( event->tfinger.fingerId, event->tfinger.x*width, event->tfinger.y*height );
+		break;
+	case SDL_FINGERMOTION:
+		pInputSystem->FingerMotion( event->tfinger.fingerId, event->tfinger.x*width, event->tfinger.y*height );
+		break;
+	}
+
+	return 1;
+}
+
+//-----------------------------------------------------------------------------
+// Initialize all joysticks
+//-----------------------------------------------------------------------------
+void CInputSystem::InitializeTouch( void )
+{
+	if ( m_bTouchInitialized )
+		ShutdownTouch();
+
+	// abort startup if user requests no touch
+	if ( CommandLine()->FindParm("-notouch") ) return;
+
+	m_bJoystickInitialized = true;
+	SDL_AddEventWatch(TouchSDLWatcher, this);
+}
+
+void CInputSystem::ShutdownTouch()
+{
+	if ( !m_bTouchInitialized )
+		return;
+
+	SDL_DelEventWatch( TouchSDLWatcher, this );
+	m_bTouchInitialized = false;
+}
+
+void CInputSystem::FingerDown(int fingerId, int x, int y)
+{
+	m_touchAccumEvent = IE_FingerDown;
+	m_touchAccumFingerId = fingerId;
+	m_touchAccumX = x;
+	m_touchAccumY = y;
+	
+	PostEvent(IE_FingerDown, m_nLastSampleTick, fingerId, x, y);
+}
+
+void CInputSystem::FingerUp(int fingerId, int x, int y)
+{
+	m_touchAccumEvent = IE_FingerUp;
+	m_touchAccumFingerId = fingerId;
+	m_touchAccumX = x;
+	m_touchAccumY = y;
+	
+	PostEvent(IE_FingerUp, m_nLastSampleTick, fingerId, x, y);	
+}
+
+void CInputSystem::FingerMotion(int fingerId, int x, int y)
+{
+	m_touchAccumEvent = IE_FingerMotion;	
+	m_touchAccumFingerId = fingerId;
+	m_touchAccumX = x;
+	m_touchAccumY = y;
+	
+	PostEvent(IE_FingerMotion, m_nLastSampleTick, fingerId, x, y);	
+}

public/inputsystem/InputEnums.h

@@ -76,7 +76,10 @@ enum InputEventType_t
 	IE_ButtonReleased,		// m_nData contains a ButtonCode_t
 	IE_ButtonDoubleClicked,	// m_nData contains a ButtonCode_t
 	IE_AnalogValueChanged,	// m_nData contains an AnalogCode_t, m_nData2 contains the value
-
+	IE_FingerDown,
+	IE_FingerUp,
+	IE_FingerMotion,
+	
 	IE_FirstSystemEvent = 100,
 	IE_Quit = IE_FirstSystemEvent,
 	IE_ControllerInserted,	// m_nData contains the controller ID

vguimatsurface/Input.cpp

@@ -423,7 +423,27 @@ bool InputHandleInputEvent( const InputEvent_t &event )
 			}
 		}
 		break;
-
+	case IE_FingerDown:
+		{
+			//g_pIInput->InternalCursorMoved( event.m_nData2, event.m_nData3 );
+			g_pIInput->UpdateCursorPosInternal( event.m_nData2, event.m_nData3 );
+			g_pIInput->SetMouseCodeState( MOUSE_LEFT, vgui::BUTTON_PRESSED );
+			g_pIInput->InternalMousePressed( MOUSE_LEFT );
+		}
+		return true;
+	case IE_FingerUp:
+		{
+			g_pIInput->UpdateCursorPosInternal( event.m_nData2, event.m_nData3 );
+			g_pIInput->SetMouseCodeState( MOUSE_LEFT, vgui::BUTTON_RELEASED );			
+			g_pIInput->InternalMouseReleased( MOUSE_LEFT );
+		}
+		return true;
+	case IE_FingerMotion:
+		{
+			//g_pIInput->UpdateCursorPosInternal( event.m_nData2, event.m_nData3 );
+			g_pIInput->InternalCursorMoved( event.m_nData2, event.m_nData3 );
+		}
+		return true;	
 	case IE_ButtonDoubleClicked:
 		{
 			// NOTE: data2 is the virtual key code (data1 contains the scan-code one)