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98 lines
2.8 KiB
98 lines
2.8 KiB
//========= Copyright Valve Corporation, All rights reserved. ============// |
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// |
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// Purpose: Linux/Android touch implementation for inputsystem |
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// |
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//===========================================================================// |
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/* For force feedback testing. */ |
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#include "inputsystem.h" |
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#include "tier1/convar.h" |
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#include "tier0/icommandline.h" |
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#include "SDL.h" |
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#include "SDL_touch.h" |
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// NOTE: This has to be the last file included! |
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#include "tier0/memdbgon.h" |
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//----------------------------------------------------------------------------- |
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// Handle the events coming from the Touch SDL subsystem. |
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//----------------------------------------------------------------------------- |
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int TouchSDLWatcher( void *userInfo, SDL_Event *event ) |
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{ |
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CInputSystem *pInputSystem = (CInputSystem *)userInfo; |
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if( !event || !pInputSystem ) return 1; |
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switch ( event->type ) { |
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case SDL_FINGERDOWN: |
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pInputSystem->FingerEvent( IE_FingerDown, event->tfinger.fingerId, event->tfinger.x, event->tfinger.y, event->tfinger.dx, event->tfinger.dy ); |
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break; |
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case SDL_FINGERUP: |
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pInputSystem->FingerEvent( IE_FingerUp, event->tfinger.fingerId, event->tfinger.x, event->tfinger.y, event->tfinger.dx, event->tfinger.dy ); |
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break; |
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case SDL_FINGERMOTION: |
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pInputSystem->FingerEvent( IE_FingerMotion ,event->tfinger.fingerId, event->tfinger.x, event->tfinger.y, event->tfinger.dx, event->tfinger.dy ); |
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break; |
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} |
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return 1; |
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} |
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//----------------------------------------------------------------------------- |
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// Initialize all joysticks |
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//----------------------------------------------------------------------------- |
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void CInputSystem::InitializeTouch( void ) |
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{ |
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if ( m_bTouchInitialized ) |
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ShutdownTouch(); |
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// abort startup if user requests no touch |
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if ( CommandLine()->FindParm("-notouch") ) return; |
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memset( m_touchAccumX, 0, sizeof(m_touchAccumX) ); |
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memset( m_touchAccumY, 0, sizeof(m_touchAccumY) ); |
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m_bJoystickInitialized = true; |
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SDL_AddEventWatch(TouchSDLWatcher, this); |
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} |
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void CInputSystem::ShutdownTouch() |
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{ |
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if ( !m_bTouchInitialized ) |
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return; |
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SDL_DelEventWatch( TouchSDLWatcher, this ); |
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m_bTouchInitialized = false; |
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} |
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bool CInputSystem::GetTouchAccumulators( int fingerId, float &dx, float &dy ) |
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{ |
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dx = m_touchAccumX[fingerId]; |
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dy = m_touchAccumY[fingerId]; |
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m_touchAccumX[fingerId] = m_touchAccumY[fingerId] = 0.f; |
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return true; |
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} |
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void CInputSystem::FingerEvent(int eventType, int fingerId, float x, float y, float dx, float dy) |
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{ |
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if( fingerId >= TOUCH_FINGER_MAX_COUNT ) |
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return; |
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if( eventType == IE_FingerUp ) |
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{ |
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m_touchAccumX[fingerId] = 0.f; |
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m_touchAccumY[fingerId] = 0.f; |
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} |
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else |
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{ |
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m_touchAccumX[fingerId] += dx; |
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m_touchAccumY[fingerId] += dy; |
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} |
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int _x,_y; |
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memcpy( &_x, &x, sizeof(float) ); |
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memcpy( &_y, &y, sizeof(float) ); |
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PostEvent(eventType, m_nLastSampleTick, fingerId, _x, _y); |
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} |
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