mirror of
https://github.com/nillerusr/source-engine.git
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81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
//========= 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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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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void CInputSystem::FingerEvent(int eventType, int fingerId, float x, float y, float dx, float dy)
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{
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// Shit, but should work with arm/x86
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int data0 = fingerId << 16 | eventType;
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int _x = (int)((double)x*0xFFFF);
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int _y = (int)((double)y*0xFFFF);
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int data1 = _x << 16 | (_y & 0xFFFF);
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union{int i;float f;} ifconv;
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ifconv.f = dx;
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int _dx = ifconv.i;
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ifconv.f = dy;
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int _dy = ifconv.i;
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PostEvent(data0, m_nLastSampleTick, data1, _dx, _dy);
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}
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