Added native Cocoa back-end implementation

src/cocoa/i_joystick.cpp

@@ -0,0 +1,776 @@
+/*
+ ** i_joystick.cpp
+ **
+ **---------------------------------------------------------------------------
+ ** Copyright 2012-2014 Alexey Lysiuk
+ ** All rights reserved.
+ **
+ ** Redistribution and use in source and binary forms, with or without
+ ** modification, are permitted provided that the following conditions
+ ** are met:
+ **
+ ** 1. Redistributions of source code must retain the above copyright
+ **    notice, this list of conditions and the following disclaimer.
+ ** 2. Redistributions in binary form must reproduce the above copyright
+ **    notice, this list of conditions and the following disclaimer in the
+ **    documentation and/or other materials provided with the distribution.
+ ** 3. The name of the author may not be used to endorse or promote products
+ **    derived from this software without specific prior written permission.
+ **
+ ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **---------------------------------------------------------------------------
+ **
+ */
+
+#include "m_joy.h"
+
+#include "HID_Utilities_External.h"
+
+#include "d_event.h"
+#include "doomdef.h"
+#include "templates.h"
+
+
+namespace
+{
+
+FString ToFString( const CFStringRef string )
+{
+	if ( NULL == string )
+	{
+		return FString();
+	}
+
+	const CFIndex stringLength = CFStringGetLength( string );
+	
+	if ( 0 == stringLength )
+	{
+		return FString();
+	}
+
+	const size_t bufferSize = CFStringGetMaximumSizeForEncoding( stringLength, kCFStringEncodingUTF8 ) + 1;
+	
+	char buffer[ bufferSize ];
+	memset( buffer, 0, bufferSize );
+	
+	CFStringGetCString( string, buffer, bufferSize, kCFStringEncodingUTF8 );
+	
+	return FString( buffer );
+}
+
+
+class IOKitJoystick : public IJoystickConfig
+{
+public:
+	explicit IOKitJoystick( IOHIDDeviceRef device );
+	virtual ~IOKitJoystick();
+	
+	virtual FString GetName();
+	virtual float GetSensitivity();
+	virtual void SetSensitivity( float scale );
+	
+	virtual int GetNumAxes();
+	virtual float GetAxisDeadZone( int axis );
+	virtual EJoyAxis GetAxisMap( int axis );
+	virtual const char* GetAxisName( int axis );
+	virtual float GetAxisScale( int axis );
+	
+	virtual void SetAxisDeadZone( int axis, float deadZone );
+	virtual void SetAxisMap( int axis, EJoyAxis gameAxis );
+	virtual void SetAxisScale( int axis, float scale );
+	
+	virtual bool IsSensitivityDefault();
+	virtual bool IsAxisDeadZoneDefault( int axis );
+	virtual bool IsAxisMapDefault( int axis );
+	virtual bool IsAxisScaleDefault( int axis );
+	
+	virtual void SetDefaultConfig();
+	virtual FString GetIdentifier();
+	
+	void AddAxes( float axes[ NUM_JOYAXIS ] ) const;
+	
+	void Update();
+	
+private:
+	IOHIDDeviceRef m_device;
+	
+	float m_sensitivity;
+	
+	struct AxisInfo
+	{
+		char name[ 64 ];
+		
+		float value;
+		
+		float deadZone;
+		float defaultDeadZone;
+		float sensitivity;
+		float defaultSensitivity;
+		
+		EJoyAxis gameAxis;
+		EJoyAxis defaultGameAxis;
+		
+		IOHIDElementRef element;
+	};
+	
+	TArray< AxisInfo > m_axes;
+	
+	TArray< IOHIDElementRef > m_buttons;
+	TArray< IOHIDElementRef > m_POVs;
+
+	
+	static const float DEFAULT_DEADZONE;
+	static const float DEFAULT_SENSITIVITY;
+	
+	
+	bool ProcessAxis  ( const IOHIDValueRef value );
+	bool ProcessButton( const IOHIDValueRef value );
+	bool ProcessPOV   ( const IOHIDValueRef value );
+	
+};
+
+
+const float IOKitJoystick::DEFAULT_DEADZONE    = 0.25f;
+const float IOKitJoystick::DEFAULT_SENSITIVITY = 1.0f;
+
+
+IOKitJoystick::IOKitJoystick( IOHIDDeviceRef device )
+: m_device( device )
+, m_sensitivity( DEFAULT_SENSITIVITY )
+{
+	IOHIDElementRef element = HIDGetFirstDeviceElement( device, kHIDElementTypeInput );
+	
+	while ( NULL != element )
+	{
+		const uint32_t usagePage = IOHIDElementGetUsagePage( element );
+		
+		if ( kHIDPage_GenericDesktop == usagePage )
+		{
+			const uint32_t usage = IOHIDElementGetUsage( element );
+			
+			if ( kHIDUsage_GD_Slider == usage  
+				|| kHIDUsage_GD_X    == usage || kHIDUsage_GD_Y  == usage || kHIDUsage_GD_Z  == usage
+				|| kHIDUsage_GD_Rx   == usage || kHIDUsage_GD_Ry == usage || kHIDUsage_GD_Rz == usage )
+			{
+				AxisInfo axis;
+				memset( &axis, 0, sizeof( axis ) );
+				
+				if ( const CFStringRef name = IOHIDElementGetName( element ) )
+				{
+					CFStringGetCString( name, axis.name, sizeof( axis.name ) - 1, kCFStringEncodingUTF8 );
+				}
+				else
+				{
+					snprintf( axis.name, sizeof( axis.name ), "Axis %i", m_axes.Size() + 1 );
+				}
+				
+				axis.element = element;
+				
+				m_axes.Push( axis );
+				
+				IOHIDElement_SetCalibrationMin( element, -1 );
+				IOHIDElement_SetCalibrationMax( element,  1 );
+				
+				HIDQueueElement( m_device, element );
+			}
+			else if ( kHIDUsage_GD_Hatswitch == usage && m_POVs.Size() < 4 )
+			{
+				m_POVs.Push( element );
+				
+				HIDQueueElement( m_device, element );
+			}			
+		}
+		else if ( kHIDPage_Button == usagePage )
+		{
+			m_buttons.Push( element );
+			
+			HIDQueueElement( m_device, element );
+		}
+		
+		element = HIDGetNextDeviceElement( element, kHIDElementTypeInput );
+	}
+
+	SetDefaultConfig();
+}
+
+IOKitJoystick::~IOKitJoystick()
+{
+	M_SaveJoystickConfig( this );
+}
+
+
+FString IOKitJoystick::GetName()
+{
+	FString result;
+	
+	result += ToFString( IOHIDDevice_GetManufacturer( m_device ) );
+	result += " ";
+	result += ToFString( IOHIDDevice_GetProduct( m_device ) );
+	
+	return result;
+}
+
+
+float IOKitJoystick::GetSensitivity()
+{
+	return m_sensitivity;
+}
+
+void IOKitJoystick::SetSensitivity( float scale )
+{
+	m_sensitivity = scale;
+}
+
+
+int IOKitJoystick::GetNumAxes()
+{
+	return static_cast< int >( m_axes.Size() );
+}
+
+#define IS_AXIS_VALID ( static_cast< unsigned int >( axis ) < m_axes.Size() )
+
+float IOKitJoystick::GetAxisDeadZone( int axis )
+{
+	return IS_AXIS_VALID ? m_axes[ axis ].deadZone : 0.0f;
+}
+
+EJoyAxis IOKitJoystick::GetAxisMap( int axis )
+{
+	return IS_AXIS_VALID ? m_axes[ axis ].gameAxis : JOYAXIS_None;
+}
+
+const char* IOKitJoystick::GetAxisName( int axis )
+{
+	return IS_AXIS_VALID ? m_axes[ axis ].name : "Invalid";
+}
+
+float IOKitJoystick::GetAxisScale( int axis )
+{
+	return IS_AXIS_VALID ? m_axes[ axis ].sensitivity : 0.0f;
+}
+
+void IOKitJoystick::SetAxisDeadZone( int axis, float deadZone )
+{
+	if ( IS_AXIS_VALID )
+	{
+		m_axes[ axis ].deadZone = clamp( deadZone, 0.0f, 1.0f );
+	}
+}
+
+void IOKitJoystick::SetAxisMap( int axis, EJoyAxis gameAxis )
+{
+	if ( IS_AXIS_VALID )
+	{
+		m_axes[ axis ].gameAxis = ( gameAxis > JOYAXIS_None && gameAxis < NUM_JOYAXIS )
+			? gameAxis
+			: JOYAXIS_None;
+	}
+}
+	
+void IOKitJoystick::SetAxisScale( int axis, float scale )
+{
+	if ( IS_AXIS_VALID )
+	{
+		m_axes[ axis ].sensitivity = scale;
+	}
+}
+
+
+bool IOKitJoystick::IsSensitivityDefault()
+{
+	return DEFAULT_SENSITIVITY == m_sensitivity;
+}
+
+bool IOKitJoystick::IsAxisDeadZoneDefault( int axis )
+{
+	return IS_AXIS_VALID
+		? ( m_axes[ axis ].deadZone == m_axes[ axis ].defaultDeadZone )
+		: true;
+}
+
+bool IOKitJoystick::IsAxisMapDefault( int axis )
+{
+	return IS_AXIS_VALID
+		? ( m_axes[ axis ].gameAxis == m_axes[ axis ].defaultGameAxis )
+		: true;
+}
+
+bool IOKitJoystick::IsAxisScaleDefault( int axis )
+{
+	return IS_AXIS_VALID
+		? ( m_axes[ axis ].sensitivity == m_axes[ axis ].defaultSensitivity )
+		: true;
+}
+
+#undef IS_AXIS_VALID
+
+void IOKitJoystick::SetDefaultConfig()
+{
+	m_sensitivity = DEFAULT_SENSITIVITY;
+
+	const size_t axisCount = m_axes.Size();
+	
+	for ( size_t i = 0; i < axisCount; ++i )
+	{
+		m_axes[i].deadZone    = DEFAULT_DEADZONE;
+		m_axes[i].sensitivity = DEFAULT_SENSITIVITY;
+		m_axes[i].gameAxis    = JOYAXIS_None;
+	}
+	
+	// Two axes? Horizontal is yaw and vertical is forward.
+	
+	if ( 2 == axisCount)
+	{
+		m_axes[0].gameAxis = JOYAXIS_Yaw;
+		m_axes[1].gameAxis = JOYAXIS_Forward;
+	}
+	
+	// Three axes? First two are movement, third is yaw.
+	
+	else if ( axisCount >= 3 )
+	{
+		m_axes[0].gameAxis = JOYAXIS_Side;
+		m_axes[1].gameAxis = JOYAXIS_Forward;
+		m_axes[2].gameAxis = JOYAXIS_Yaw;
+		
+		// Four axes? First two are movement, last two are looking around.
+		
+		if ( axisCount >= 4 )
+		{
+			m_axes[3].gameAxis = JOYAXIS_Pitch;
+//	???		m_axes[3].sensitivity = 0.75f;
+			
+			// Five axes? Use the fifth one for moving up and down.
+			
+			if ( axisCount >= 5 )
+			{
+				m_axes[4].gameAxis = JOYAXIS_Up;
+			}
+		}
+	}
+	
+	// If there is only one axis, then we make no assumptions about how
+	// the user might want to use it.
+	
+	// Preserve defaults for config saving.
+	
+	for ( size_t i = 0; i < axisCount; ++i )
+	{
+		m_axes[i].defaultDeadZone    = m_axes[i].deadZone;
+		m_axes[i].defaultSensitivity = m_axes[i].sensitivity;
+		m_axes[i].defaultGameAxis    = m_axes[i].gameAxis;
+	}
+}
+
+
+FString IOKitJoystick::GetIdentifier()
+{
+	char identifier[ 32 ] = {0};
+	
+	snprintf( identifier, sizeof( identifier ), "VID_%04lx_PID_%04lx", 
+		IOHIDDevice_GetVendorID( m_device ), IOHIDDevice_GetProductID( m_device ) );
+	
+	return FString( identifier );
+}
+
+
+void IOKitJoystick::AddAxes( float axes[ NUM_JOYAXIS ] ) const
+{
+	for ( size_t i = 0, count = m_axes.Size(); i < count; ++i )
+	{
+		const EJoyAxis axis = m_axes[i].gameAxis;
+		
+		if ( JOYAXIS_None == axis )
+		{
+			continue;
+		}
+		
+		axes[ axis ] -= m_axes[i].value;
+	}
+}
+
+
+void IOKitJoystick::Update()
+{
+	IOHIDValueRef value = NULL;
+	
+	while ( HIDGetEvent( m_device, &value ) && NULL != value )
+	{
+		ProcessAxis( value ) || ProcessButton( value ) || ProcessPOV( value );
+		
+		CFRelease( value );
+	}
+}
+
+
+bool IOKitJoystick::ProcessAxis( const IOHIDValueRef value )
+{
+	const IOHIDElementRef element = IOHIDValueGetElement( value );
+	
+	if ( NULL == element )
+	{
+		return false;
+	}
+
+	for ( size_t i = 0, count = m_axes.Size(); i < count; ++i )
+	{
+		if ( element != m_axes[i].element )
+		{
+			continue;
+		}
+		
+		AxisInfo& axis = m_axes[i];
+		
+		const double scaledValue   = IOHIDValueGetScaledValue( value, kIOHIDValueScaleTypeCalibrated );
+		const double filteredValue = Joy_RemoveDeadZone( scaledValue, axis.deadZone, NULL );
+		
+		axis.value = static_cast< float >( filteredValue * m_sensitivity * axis.sensitivity );
+		
+		return true;
+	}
+	
+	return false;
+}
+
+bool IOKitJoystick::ProcessButton( const IOHIDValueRef value )
+{
+	const IOHIDElementRef element = IOHIDValueGetElement( value );
+	
+	if ( NULL == element )
+	{
+		return false;
+	}
+	
+	for ( size_t i = 0, count = m_buttons.Size(); i < count; ++i )
+	{
+		if ( element != m_buttons[i] )
+		{
+			continue;
+		}
+		
+		const int newButton = IOHIDValueGetIntegerValue( value ) & 1;
+		const int oldButton = ~newButton;
+		
+		Joy_GenerateButtonEvents( oldButton, newButton, 1, 
+			static_cast< int >( KEY_FIRSTJOYBUTTON + i ) );
+		
+		return true;
+	}
+	
+	return false;
+}
+
+bool IOKitJoystick::ProcessPOV( const IOHIDValueRef value )
+{
+	const IOHIDElementRef element = IOHIDValueGetElement( value );
+	
+	if ( NULL == element )
+	{
+		return false;
+	}
+	
+	for ( size_t i = 0, count = m_POVs.Size(); i < count; ++i )
+	{
+		if ( element != m_POVs[i] )
+		{
+			continue;
+		}
+		
+		const CFIndex direction = IOHIDValueGetIntegerValue( value );
+
+		// Default values is for Up/North
+		int oldButtons = 0;
+		int newButtons = 1;
+		int numButtons = 1;
+		int baseButton = KEY_JOYPOV1_UP;
+		
+		switch ( direction )
+		{
+			case 0: // N
+				break;
+
+			case 1: // NE
+				newButtons = 3;
+				numButtons = 2;
+				break;
+				
+			case 2: // E
+				baseButton = KEY_JOYPOV1_RIGHT;
+				break;
+
+			case 3: // SE
+				newButtons = 3;
+				numButtons = 2;
+				baseButton = KEY_JOYPOV1_RIGHT;
+				break;
+
+			case 4: // S
+				baseButton = KEY_JOYPOV1_DOWN;
+				break;
+
+			case 5: // SW
+				newButtons = 3;
+				numButtons = 2;
+				baseButton = KEY_JOYPOV1_DOWN;
+				break;
+				
+			case 6: // W
+				baseButton = KEY_JOYPOV1_LEFT;
+				break;
+				
+			case 7: // NW
+				newButtons = 9; // UP and LEFT
+				numButtons = 4;
+				break;
+				
+			default:
+				// release all four directions
+				oldButtons = 15;
+				newButtons = 0;
+				numButtons = 4;
+				break;
+		}
+		
+		Joy_GenerateButtonEvents( oldButtons, newButtons, numButtons, 
+			static_cast< int >( baseButton + i * 4 ) );
+	}
+	
+	return false;
+}
+
+
+// ---------------------------------------------------------------------------
+
+
+class IOKitJoystickManager
+{
+public:
+	IOKitJoystickManager();
+	~IOKitJoystickManager();
+	
+	void GetJoysticks( TArray< IJoystickConfig* >& joysticks ) const;
+	
+	void AddAxes( float axes[ NUM_JOYAXIS ] ) const;
+	
+	// Updates axes/buttons states
+	void Update();
+	
+	// Rebuilds device list
+	void Rescan();
+	
+private:
+	TArray< IOKitJoystick* > m_joysticks;
+	
+	static void OnDeviceChanged( void* context, IOReturn result, void* sender, IOHIDDeviceRef device );
+	
+	void ReleaseJoysticks();
+	
+	void EnableCallbacks();
+	void DisableCallbacks();
+	
+};
+
+
+IOKitJoystickManager::IOKitJoystickManager()
+{
+	Rescan();
+}
+
+IOKitJoystickManager::~IOKitJoystickManager()
+{
+	ReleaseJoysticks();
+	DisableCallbacks();
+	
+	HIDReleaseDeviceList();
+}
+
+
+void IOKitJoystickManager::GetJoysticks( TArray< IJoystickConfig* >& joysticks ) const
+{
+	const size_t joystickCount = m_joysticks.Size();
+	
+	joysticks.Resize( joystickCount );
+	
+	for ( size_t i = 0; i < joystickCount; ++i )
+	{
+		M_LoadJoystickConfig( m_joysticks[i] );
+		
+		joysticks[i] = m_joysticks[i];
+	}
+}
+
+void IOKitJoystickManager::AddAxes( float axes[ NUM_JOYAXIS ] ) const
+{
+	for ( size_t i = 0, count = m_joysticks.Size(); i < count; ++i )
+	{
+		m_joysticks[i]->AddAxes( axes );
+	}
+}
+
+
+void IOKitJoystickManager::Update()
+{
+	for ( size_t i = 0, count = m_joysticks.Size(); i < count; ++i )
+	{
+		m_joysticks[i]->Update();
+	}
+}
+
+
+void IOKitJoystickManager::Rescan()
+{
+	ReleaseJoysticks();
+	DisableCallbacks();
+	
+	const int usageCount = 2;
+	
+	const UInt32 usagePages[ usageCount ] =
+	{
+		kHIDPage_GenericDesktop,
+		kHIDPage_GenericDesktop
+	};
+	
+	const UInt32 usages[ usageCount ] =
+	{
+		kHIDUsage_GD_Joystick,
+		kHIDUsage_GD_GamePad
+	};
+	
+	if ( HIDUpdateDeviceList( usagePages, usages, usageCount ) )
+	{
+		IOHIDDeviceRef device = HIDGetFirstDevice();
+		
+		while ( NULL != device )
+		{		
+			IOKitJoystick* joystick = new IOKitJoystick( device );
+			m_joysticks.Push( joystick );
+			
+			device = HIDGetNextDevice( device );
+		}
+	}
+	else
+	{
+		Printf( "IOKitJoystickManager: Failed to build gamepad/joystick device list.\n" );
+	}
+	
+	EnableCallbacks();
+}
+
+
+void IOKitJoystickManager::OnDeviceChanged( void* context, IOReturn result, void* sender, IOHIDDeviceRef device )
+{
+	event_t event;
+	
+	memset( &event, 0, sizeof( event ) );
+	event.type = EV_DeviceChange;
+	
+	D_PostEvent( &event );
+}
+
+
+void IOKitJoystickManager::ReleaseJoysticks()
+{
+	for ( size_t i = 0, count = m_joysticks.Size(); i < count; ++i )
+	{
+		delete m_joysticks[i];
+	}
+	
+	m_joysticks.Clear();
+}
+
+	
+void IOKitJoystickManager::EnableCallbacks()
+{
+	if ( NULL == gIOHIDManagerRef )
+	{
+		return;
+	}	
+	
+	IOHIDManagerRegisterDeviceMatchingCallback( gIOHIDManagerRef, OnDeviceChanged, this );
+	IOHIDManagerRegisterDeviceRemovalCallback ( gIOHIDManagerRef, OnDeviceChanged, this );
+	IOHIDManagerScheduleWithRunLoop( gIOHIDManagerRef, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode );
+}
+
+void IOKitJoystickManager::DisableCallbacks()
+{
+	if ( NULL == gIOHIDManagerRef )
+	{
+		return;
+	}	
+	
+	IOHIDManagerUnscheduleFromRunLoop( gIOHIDManagerRef, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode );
+	IOHIDManagerRegisterDeviceMatchingCallback( gIOHIDManagerRef, NULL, NULL );
+	IOHIDManagerRegisterDeviceRemovalCallback ( gIOHIDManagerRef, NULL, NULL );
+}
+
+
+IOKitJoystickManager* s_joystickManager;
+
+	
+} // unnamed namespace
+
+	
+// ---------------------------------------------------------------------------
+	
+
+void I_StartupJoysticks()
+{
+	s_joystickManager = new IOKitJoystickManager;
+}
+
+void I_ShutdownJoysticks()
+{
+	delete s_joystickManager;
+}
+
+void I_GetJoysticks( TArray< IJoystickConfig* >& sticks )
+{
+	if ( NULL != s_joystickManager )
+	{
+		s_joystickManager->GetJoysticks( sticks );
+	}
+}
+
+void I_GetAxes( float axes[ NUM_JOYAXIS ] )
+{
+	for ( size_t i = 0; i < NUM_JOYAXIS; ++i )
+	{
+		axes[i] = 0.0f;
+	}
+	
+	if ( use_joystick && NULL != s_joystickManager )
+	{
+		s_joystickManager->AddAxes( axes );
+	}
+}
+
+IJoystickConfig* I_UpdateDeviceList()
+{
+	if ( use_joystick && NULL != s_joystickManager )
+	{
+		s_joystickManager->Rescan();
+	}
+	
+	return NULL;
+}
+
+
+// ---------------------------------------------------------------------------
+
+
+void I_ProcessJoysticks()
+{
+	if ( use_joystick && NULL != s_joystickManager )
+	{
+		s_joystickManager->Update();
+	}
+}

src/cocoa/i_timer.cpp

@@ -0,0 +1,191 @@
+
+#include <assert.h>
+#include <sys/time.h>
+#include <pthread.h>
+
+#include <SDL.h>
+
+#include "basictypes.h"
+#include "basicinlines.h"
+#include "doomdef.h"
+#include "i_system.h"
+#include "templates.h"
+
+
+unsigned int I_MSTime()
+{
+	return SDL_GetTicks();
+}
+
+unsigned int I_FPSTime()
+{
+	return SDL_GetTicks();
+}
+
+
+bool g_isTicFrozen;
+
+
+namespace
+{
+
+timespec GetNextTickTime()
+{
+	static const long MILLISECONDS_IN_SECOND = 1000;
+	static const long MICROSECONDS_IN_SECOND = 1000 * MILLISECONDS_IN_SECOND;
+	static const long NANOSECONDS_IN_SECOND  = 1000 * MICROSECONDS_IN_SECOND;
+
+	static timespec ts = {};
+
+	if (__builtin_expect((0 == ts.tv_sec), 0))
+	{
+		timeval tv;
+		gettimeofday(&tv, NULL);
+
+		ts.tv_sec = tv.tv_sec;
+		ts.tv_nsec = (tv.tv_usec + MICROSECONDS_IN_SECOND / TICRATE) * MILLISECONDS_IN_SECOND;
+	}
+	else
+	{
+		ts.tv_nsec += (MICROSECONDS_IN_SECOND / TICRATE) * MILLISECONDS_IN_SECOND;
+	}
+
+	if (ts.tv_nsec >= NANOSECONDS_IN_SECOND)
+	{
+		ts.tv_sec++;
+		ts.tv_nsec -= NANOSECONDS_IN_SECOND;
+	}
+
+	return ts;
+}
+
+
+pthread_cond_t  s_timerEvent;
+pthread_mutex_t s_timerMutex;
+pthread_t       s_timerThread;
+
+bool s_timerInitialized;
+bool s_timerExitRequested;
+
+uint32_t s_ticStart;
+uint32_t s_ticNext;
+
+uint32_t s_timerStart;
+uint32_t s_timerNext;
+
+int  s_tics;
+
+
+void* TimerThreadFunc(void*)
+{
+	assert(s_timerInitialized);
+	assert(!s_timerExitRequested);
+
+	while (true)
+	{
+		if (s_timerExitRequested)
+		{
+			break;
+		}
+
+		const timespec timeToNextTick = GetNextTickTime();
+
+		pthread_mutex_lock(&s_timerMutex);
+		pthread_cond_timedwait(&s_timerEvent, &s_timerMutex, &timeToNextTick);
+
+		if (!g_isTicFrozen)
+		{
+			__sync_add_and_fetch(&s_tics, 1);
+		}
+
+		s_timerStart = SDL_GetTicks();
+		s_timerNext  = Scale(Scale(s_timerStart, TICRATE, 1000) + 1, 1000, TICRATE);
+
+		pthread_cond_broadcast(&s_timerEvent);
+		pthread_mutex_unlock(&s_timerMutex);
+	}
+
+	return NULL;
+}
+
+int GetTimeThreaded(bool saveMS)
+{
+	if (saveMS)
+	{
+		s_ticStart = s_timerStart;
+		s_ticNext  = s_timerNext;
+	}
+
+	return s_tics;
+}
+
+int WaitForTicThreaded(int prevTic)
+{
+	assert(!g_isTicFrozen);
+
+	while (s_tics <= prevTic)
+	{
+		pthread_mutex_lock(&s_timerMutex);
+		pthread_cond_wait(&s_timerEvent, &s_timerMutex);
+		pthread_mutex_unlock(&s_timerMutex);
+	}
+
+	return s_tics;
+}
+
+void FreezeTimeThreaded(bool frozen)
+{
+	g_isTicFrozen = frozen;
+}
+
+} // unnamed namespace
+
+
+fixed_t I_GetTimeFrac(uint32* ms)
+{
+	const uint32_t now = SDL_GetTicks();
+
+	if (NULL != ms)
+	{
+		*ms = s_ticNext;
+	}
+
+	const uint32_t step = s_ticNext - s_ticStart;
+
+	return 0 == step
+		? FRACUNIT
+		: clamp<fixed_t>( (now - s_ticStart) * FRACUNIT / step, 0, FRACUNIT);
+}
+
+
+void I_InitTimer ()
+{
+	assert(!s_timerInitialized);
+	s_timerInitialized = true;
+
+	pthread_cond_init (&s_timerEvent,  NULL);
+	pthread_mutex_init(&s_timerMutex,  NULL);
+
+	pthread_create(&s_timerThread, NULL, TimerThreadFunc, NULL);
+
+	I_GetTime = GetTimeThreaded;
+	I_WaitForTic = WaitForTicThreaded;
+	I_FreezeTime = FreezeTimeThreaded;
+}
+
+void I_ShutdownTimer ()
+{
+	if (!s_timerInitialized)
+	{
+		// This might happen if Cancel button was pressed
+		// in the IWAD selector window
+		return;
+	}
+
+	s_timerExitRequested = true;
+
+	pthread_join(s_timerThread, NULL);
+
+	pthread_mutex_destroy(&s_timerMutex);
+	pthread_cond_destroy (&s_timerEvent);
+}

src/cocoa/zdoom-info.plist

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>English</string>
+	<key>CFBundleExecutable</key>
+	<string>${EXECUTABLE_NAME}</string>
+	<key>CFBundleIconFile</key>
+	<string>zdoom.icns</string>
+	<key>CFBundleIdentifier</key>
+	<string>org.zdoom.zdoom</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>ZDoom</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>Version 2.8.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>LSApplicationCategoryType</key>
+	<string>public.app-category.action-games</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>${MACOSX_DEPLOYMENT_TARGET}</string>
+	<key>CFBundleDocumentTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeName</key>
+			<string>Doom Resource File</string>
+			<key>CFBundleTypeRole</key>
+			<string>Viewer</string>
+			<key>CFBundleTypeExtensions</key>
+			<array>
+				<string>wad</string>
+				<string>pk3</string>
+				<string>zip</string>
+				<string>pk7</string>
+				<string>7z</string>
+			</array>
+		</dict>
+	</array>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+</dict>
+</plist>

src/cocoa/zdoom.xib

@@ -0,0 +1,874 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<archive type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="7.10">
+  <data>
+    <int key="IBDocument.SystemTarget">1060</int>
+    <string key="IBDocument.SystemVersion">11C74</string>
+    <string key="IBDocument.InterfaceBuilderVersion">851</string>
+    <string key="IBDocument.AppKitVersion">1138.23</string>
+    <string key="IBDocument.HIToolboxVersion">567.00</string>
+    <object class="NSMutableDictionary" key="IBDocument.PluginVersions">
+      <string key="NS.key.0">com.apple.InterfaceBuilder.CocoaPlugin</string>
+      <string key="NS.object.0">851</string>
+    </object>
+    <object class="NSMutableArray" key="IBDocument.EditedObjectIDs">
+      <bool key="EncodedWithXMLCoder">YES</bool>
+      <integer value="29"/>
+    </object>
+    <object class="NSArray" key="IBDocument.PluginDependencies">
+      <bool key="EncodedWithXMLCoder">YES</bool>
+      <string>com.apple.InterfaceBuilder.CocoaPlugin</string>
+    </object>
+    <object class="NSMutableDictionary" key="IBDocument.Metadata">
+      <string key="NS.key.0">PluginDependencyRecalculationVersion</string>
+      <integer value="1" key="NS.object.0"/>
+    </object>
+    <object class="NSMutableArray" key="IBDocument.RootObjects" id="1048">
+      <bool key="EncodedWithXMLCoder">YES</bool>
+      <object class="NSCustomObject" id="1021">
+        <string key="NSClassName">NSApplication</string>
+      </object>
+      <object class="NSCustomObject" id="1014">
+        <string key="NSClassName">FirstResponder</string>
+      </object>
+      <object class="NSCustomObject" id="1050">
+        <string key="NSClassName">NSApplication</string>
+      </object>
+      <object class="NSCustomObject" id="979998279">
+        <string key="NSClassName">NSFontManager</string>
+      </object>
+      <object class="NSMenu" id="649796088">
+        <string key="NSTitle">Main Menu</string>
+        <object class="NSMutableArray" key="NSMenuItems">
+          <bool key="EncodedWithXMLCoder">YES</bool>
+          <object class="NSMenuItem" id="694149608">
+            <reference key="NSMenu" ref="649796088"/>
+            <string key="NSTitle">ZDoom</string>
+            <string key="NSKeyEquiv"/>
+            <int key="NSMnemonicLoc">2147483647</int>
+            <object class="NSCustomResource" key="NSOnImage" id="90941078">
+              <string key="NSClassName">NSImage</string>
+              <string key="NSResourceName">NSMenuCheckmark</string>
+            </object>
+            <object class="NSCustomResource" key="NSMixedImage" id="675015698">
+              <string key="NSClassName">NSImage</string>
+              <string key="NSResourceName">NSMenuMixedState</string>
+            </object>
+            <string key="NSAction">submenuAction:</string>
+            <object class="NSMenu" key="NSSubmenu" id="110575045">
+              <string key="NSTitle">ZDoom</string>
+              <object class="NSMutableArray" key="NSMenuItems">
+                <bool key="EncodedWithXMLCoder">YES</bool>
+                <object class="NSMenuItem" id="238522557">
+                  <reference key="NSMenu" ref="110575045"/>
+                  <string key="NSTitle">About ZDoom</string>
+                  <string key="NSKeyEquiv"/>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="304266470">
+                  <reference key="NSMenu" ref="110575045"/>
+                  <bool key="NSIsDisabled">YES</bool>
+                  <bool key="NSIsSeparator">YES</bool>
+                  <string key="NSTitle"/>
+                  <string key="NSKeyEquiv"/>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="609285721">
+                  <reference key="NSMenu" ref="110575045"/>
+                  <string key="NSTitle">Preferences…</string>
+                  <string key="NSKeyEquiv">,</string>
+                  <int key="NSKeyEquivModMask">1048576</int>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="481834944">
+                  <reference key="NSMenu" ref="110575045"/>
+                  <bool key="NSIsDisabled">YES</bool>
+                  <bool key="NSIsSeparator">YES</bool>
+                  <string key="NSTitle"/>
+                  <string key="NSKeyEquiv"/>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="1046388886">
+                  <reference key="NSMenu" ref="110575045"/>
+                  <string key="NSTitle">Services</string>
+                  <string key="NSKeyEquiv"/>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                  <string key="NSAction">submenuAction:</string>
+                  <object class="NSMenu" key="NSSubmenu" id="752062318">
+                    <string key="NSTitle">Services</string>
+                    <object class="NSMutableArray" key="NSMenuItems">
+                      <bool key="EncodedWithXMLCoder">YES</bool>
+                    </object>
+                    <string key="NSName">_NSServicesMenu</string>
+                  </object>
+                </object>
+                <object class="NSMenuItem" id="646227648">
+                  <reference key="NSMenu" ref="110575045"/>
+                  <bool key="NSIsDisabled">YES</bool>
+                  <bool key="NSIsSeparator">YES</bool>
+                  <string key="NSTitle"/>
+                  <string key="NSKeyEquiv"/>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="755159360">
+                  <reference key="NSMenu" ref="110575045"/>
+                  <string key="NSTitle">Hide ZDoom</string>
+                  <string key="NSKeyEquiv">h</string>
+                  <int key="NSKeyEquivModMask">1048576</int>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="342932134">
+                  <reference key="NSMenu" ref="110575045"/>
+                  <string key="NSTitle">Hide Others</string>
+                  <string key="NSKeyEquiv">h</string>
+                  <int key="NSKeyEquivModMask">1572864</int>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="908899353">
+                  <reference key="NSMenu" ref="110575045"/>
+                  <string key="NSTitle">Show All</string>
+                  <string key="NSKeyEquiv"/>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="1056857174">
+                  <reference key="NSMenu" ref="110575045"/>
+                  <bool key="NSIsDisabled">YES</bool>
+                  <bool key="NSIsSeparator">YES</bool>
+                  <string key="NSTitle"/>
+                  <string key="NSKeyEquiv"/>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="632727374">
+                  <reference key="NSMenu" ref="110575045"/>
+                  <string key="NSTitle">Quit ZDoom</string>
+                  <string key="NSKeyEquiv">q</string>
+                  <int key="NSKeyEquivModMask">1048576</int>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+              </object>
+              <string key="NSName">_NSAppleMenu</string>
+            </object>
+          </object>
+          <object class="NSMenuItem" id="589253321">
+            <reference key="NSMenu" ref="649796088"/>
+            <string key="NSTitle">Edit</string>
+            <string key="NSKeyEquiv"/>
+            <int key="NSMnemonicLoc">2147483647</int>
+            <reference key="NSOnImage" ref="90941078"/>
+            <reference key="NSMixedImage" ref="675015698"/>
+            <string key="NSAction">submenuAction:</string>
+            <object class="NSMenu" key="NSSubmenu" id="428984785">
+              <string key="NSTitle">Edit</string>
+              <object class="NSMutableArray" key="NSMenuItems">
+                <bool key="EncodedWithXMLCoder">YES</bool>
+                <object class="NSMenuItem" id="320931528">
+                  <reference key="NSMenu" ref="428984785"/>
+                  <string key="NSTitle">Undo</string>
+                  <string key="NSKeyEquiv">z</string>
+                  <int key="NSKeyEquivModMask">1048576</int>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="1061671858">
+                  <reference key="NSMenu" ref="428984785"/>
+                  <string key="NSTitle">Redo</string>
+                  <string key="NSKeyEquiv">Z</string>
+                  <int key="NSKeyEquivModMask">1048576</int>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="107056348">
+                  <reference key="NSMenu" ref="428984785"/>
+                  <bool key="NSIsDisabled">YES</bool>
+                  <bool key="NSIsSeparator">YES</bool>
+                  <string key="NSTitle"/>
+                  <string key="NSKeyEquiv"/>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="371963350">
+                  <reference key="NSMenu" ref="428984785"/>
+                  <string key="NSTitle">Cut</string>
+                  <string key="NSKeyEquiv">x</string>
+                  <int key="NSKeyEquivModMask">1048576</int>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="258168612">
+                  <reference key="NSMenu" ref="428984785"/>
+                  <string key="NSTitle">Copy</string>
+                  <string key="NSKeyEquiv">c</string>
+                  <int key="NSKeyEquivModMask">1048576</int>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="440869574">
+                  <reference key="NSMenu" ref="428984785"/>
+                  <string key="NSTitle">Paste</string>
+                  <string key="NSKeyEquiv">v</string>
+                  <int key="NSKeyEquivModMask">1048576</int>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="331134633">
+                  <reference key="NSMenu" ref="428984785"/>
+                  <string key="NSTitle">Delete</string>
+                  <string key="NSKeyEquiv"/>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="255637833">
+                  <reference key="NSMenu" ref="428984785"/>
+                  <string key="NSTitle">Select All</string>
+                  <string key="NSKeyEquiv">a</string>
+                  <int key="NSKeyEquivModMask">1048576</int>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+              </object>
+            </object>
+          </object>
+          <object class="NSMenuItem" id="713487014">
+            <reference key="NSMenu" ref="649796088"/>
+            <string key="NSTitle">Window</string>
+            <string key="NSKeyEquiv"/>
+            <int key="NSMnemonicLoc">2147483647</int>
+            <reference key="NSOnImage" ref="90941078"/>
+            <reference key="NSMixedImage" ref="675015698"/>
+            <string key="NSAction">submenuAction:</string>
+            <object class="NSMenu" key="NSSubmenu" id="835318025">
+              <string key="NSTitle">Window</string>
+              <object class="NSMutableArray" key="NSMenuItems">
+                <bool key="EncodedWithXMLCoder">YES</bool>
+                <object class="NSMenuItem" id="1011231497">
+                  <reference key="NSMenu" ref="835318025"/>
+                  <string key="NSTitle">Minimize</string>
+                  <string key="NSKeyEquiv">m</string>
+                  <int key="NSKeyEquivModMask">1048576</int>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="575023229">
+                  <reference key="NSMenu" ref="835318025"/>
+                  <string key="NSTitle">Zoom</string>
+                  <string key="NSKeyEquiv"/>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="299356726">
+                  <reference key="NSMenu" ref="835318025"/>
+                  <bool key="NSIsDisabled">YES</bool>
+                  <bool key="NSIsSeparator">YES</bool>
+                  <string key="NSTitle"/>
+                  <string key="NSKeyEquiv"/>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+                <object class="NSMenuItem" id="625202149">
+                  <reference key="NSMenu" ref="835318025"/>
+                  <string key="NSTitle">Bring All to Front</string>
+                  <string key="NSKeyEquiv"/>
+                  <int key="NSMnemonicLoc">2147483647</int>
+                  <reference key="NSOnImage" ref="90941078"/>
+                  <reference key="NSMixedImage" ref="675015698"/>
+                </object>
+              </object>
+              <string key="NSName">_NSWindowsMenu</string>
+            </object>
+          </object>
+        </object>
+        <string key="NSName">_NSMainMenu</string>
+      </object>
+    </object>
+    <object class="IBObjectContainer" key="IBDocument.Objects">
+      <object class="NSMutableArray" key="connectionRecords">
+        <bool key="EncodedWithXMLCoder">YES</bool>
+        <object class="IBConnectionRecord">
+          <object class="IBActionConnection" key="connection">
+            <string key="label">performMiniaturize:</string>
+            <reference key="source" ref="1014"/>
+            <reference key="destination" ref="1011231497"/>
+          </object>
+          <int key="connectionID">37</int>
+        </object>
+        <object class="IBConnectionRecord">
+          <object class="IBActionConnection" key="connection">
+            <string key="label">arrangeInFront:</string>
+            <reference key="source" ref="1014"/>
+            <reference key="destination" ref="625202149"/>
+          </object>
+          <int key="connectionID">39</int>
+        </object>
+        <object class="IBConnectionRecord">
+          <object class="IBActionConnection" key="connection">
+            <string key="label">orderFrontStandardAboutPanel:</string>
+            <reference key="source" ref="1021"/>
+            <reference key="destination" ref="238522557"/>
+          </object>
+          <int key="connectionID">142</int>
+        </object>
+        <object class="IBConnectionRecord">
+          <object class="IBActionConnection" key="connection">
+            <string key="label">performZoom:</string>
+            <reference key="source" ref="1014"/>
+            <reference key="destination" ref="575023229"/>
+          </object>
+          <int key="connectionID">240</int>
+        </object>
+        <object class="IBConnectionRecord">
+          <object class="IBActionConnection" key="connection">
+            <string key="label">hide:</string>
+            <reference key="source" ref="1014"/>
+            <reference key="destination" ref="755159360"/>
+          </object>
+          <int key="connectionID">367</int>
+        </object>
+        <object class="IBConnectionRecord">
+          <object class="IBActionConnection" key="connection">
+            <string key="label">hideOtherApplications:</string>
+            <reference key="source" ref="1014"/>
+            <reference key="destination" ref="342932134"/>
+          </object>
+          <int key="connectionID">368</int>
+        </object>
+        <object class="IBConnectionRecord">
+          <object class="IBActionConnection" key="connection">
+            <string key="label">terminate:</string>
+            <reference key="source" ref="1014"/>
+            <reference key="destination" ref="632727374"/>
+          </object>
+          <int key="connectionID">369</int>
+        </object>
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