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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
<html>
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<a href="http://developer.apple.com/">ADC Home</a> > <a href="../../referencelibrary/index.html">Reference Library</a> > <a href="../../samplecode/index.html">Sample Code</a> > <a href="../../samplecode/Games/index.html">Games</a> > <a href="../../samplecode/Games/idxHumanInterfaceDeviceForceFeedback-date.html">Human Interface Device & Force Feedback</a> > <A HREF="javascript:location.replace('index.html');">HID Config Save</A> >
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<h2>/main.c</h2>
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<pre class="sourcecodebox">//
// File: main.c
//
// Contains: Source code to test HID Config Utilties.
//
// Copyright: Copyright © 2006 Apple Inc., All Rights Reserved
//
// Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Inc.
// ( "Apple" ) in consideration of your agreement to the following terms, and your
// use, installation, modification or redistribution of this Apple software
// constitutes acceptance of these terms. If you do not agree with these terms,
// please do not use, install, modify or redistribute this Apple software.
//
// In consideration of your agreement to abide by the following terms, and subject
// to these terms, Apple grants you a personal, non-exclusive license, under Apple's
// copyrights in this original Apple software ( the "Apple Software" ), to use,
// reproduce, modify and redistribute the Apple Software, with or without
// modifications, in source and/or binary forms; provided that if you redistribute
// the Apple Software in its entirety and without modifications, you must retain
// this notice and the following text and disclaimers in all such redistributions of
// the Apple Software. Neither the name, trademarks, service marks or logos of
// Apple Inc. may be used to endorse or promote products derived from the
// Apple Software without specific prior written permission from Apple. Except as
// expressly stated in this notice, no other rights or licenses, express or implied,
// are granted by Apple herein, including but not limited to any patent rights that
// may be infringed by your derivative works or by other works in which the Apple
// Software may be incorporated.
//
// The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
// WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
// WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
// COMBINATION WITH YOUR PRODUCTS.
//
// IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
// CONSEQUENTIAL DAMAGES ( INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION )
// ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
// OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
// ( INCLUDING NEGLIGENCE ), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// ****************************************************
#pragma mark -
#pragma mark * complation directives *
// ----------------------------------------------------
#ifndef TRUE
#define FALSE 0
#define TRUE !FALSE
#endif
#define USE_VALUE_CALLBACK TRUE // This works!
#define USE_QUEUES TRUE // untested
#define USE_REMOVAL_CALLBACK TRUE
#define USE_HOT_PLUGGING TRUE
// ****************************************************
#pragma mark -
#pragma mark * includes & imports *
// ----------------------------------------------------
#include <Carbon/Carbon.h>
#include "HID_Utilities.h"
// ****************************************************
#pragma mark -
#pragma mark * typedef's, struct's, enums, defines, etc. *
// ----------------------------------------------------
typedef struct action_struct
{
IOHIDDeviceRef fDeviceRef;
IOHIDElementRef fElementRef;
double fValue;
}action_rec, *action_ptr;
enum { kActionXAxis, kActionYAxis, kActionThrust, kActionFire };
enum {
kHICommandXAxis = 'xaxs', // pref pannel commands
kHICommandYAxis = 'yaxs',
kHICommandThrust = 'thrs',
kHICommandFire = 'fire',
kHICommandGoGo = 'GoGo', // menu commands
kHICommandConfig = 'Conf',
// kHICommandSave = 'save', // already in <CarbonEvents.h>
kHICommandRestore = 'Rest',
kHICommandReBuild = 'rBld',
kHICommandTest = 'Test',
kHICommandPoll = 'Poll',
kHICommandPing = 'Ping',
};
// ****************************************************
#pragma mark -
#pragma mark * local ( static ) function prototypes *
// ----------------------------------------------------
static OSStatus Restore_Configs( void );
static pascal OSStatus Handle_AppEvents( EventHandlerCallRef inEventHandlerCallRef, EventRef inEventRef, void* inUserData );
static pascal OSStatus Handle_HIViewEvents( EventHandlerCallRef inEventHandlerCallRef, EventRef inEventRef, void* inUserData );
static pascal void Handle_TimerEvents( EventLoopTimerRef inTimer, void* inUserData );
static OSStatus Initialize_HID( void );
static OSStatus Terminate_HID( void );
#if USE_QUEUES
static void Handle_ValueAvailableCallback( void * inContext, IOReturn inResult, void * inSender );
#elif USE_VALUE_CALLBACK
static void Handle_InputValueCallback( void * inContext, IOReturn inResult, void * inSender, IOHIDValueRef inIOHIDValueRef );
#endif // USE_VALUE_CALLBACK
#if USE_REMOVAL_CALLBACK
static void Handle_RemovalCallback( void * inContext, IOReturn inResult, void * inSender, IOHIDDeviceRef inIOHIDDeviceRef );
#endif // USE_REMOVAL_CALLBACK
#if USE_HOT_PLUGGING
static void Handle_DeviceMatchingCallback( void * inContext, IOReturn inResult, void * inSender, IOHIDDeviceRef inIOHIDDeviceRef );
#endif // USE_HOT_PLUGGING
// ****************************************************
#pragma mark -
#pragma mark * exported globals *
// ----------------------------------------------------
// ****************************************************
#pragma mark -
#pragma mark * local ( static ) globals *
// ----------------------------------------------------
static action_rec gActionArray[4];
static WindowRef gConfigWindowRef = NULL;
static WindowRef gGameWindowRef = NULL;
static IBNibRef gIBNibRef = NULL;
// ---------------------------------
static EventHandlerUPP gConfigEvtHandler = NULL; // window event handler
static EventHandlerUPP gGameEvtHandler = NULL; // window event handler
static EventLoopTimerRef gTimer = NULL; // "game" timer
#if USE_QUEUES
static CFMutableArrayRef gIOHIDQueueRefsCFArrayRef = NULL;
#endif USE_QUEUES
// ---------------------------------
static const ControlID gGameWindowUserPaneControlID = { 'hidc', 6 };
static const ControlID gGameWindowThrustControlID = { 'hidc', 7 };
static const ControlID gGameWindowFireControlID = { 'hidc', 8 };
// ****************************************************
#pragma mark -
#pragma mark * exported function implementations *
// ----------------------------------------------------
// ---------------------------------
int main( int argc, char* argv[] )
{
#pragma unused( argc, argv )
OSStatus result;
bzero( gActionArray, 4 * sizeof( action_rec ) );
// Create a Nib reference passing the name of the nib file( without the .nib extension )
// CreateNibReference only searches into the application bundle.
result = CreateNibReference( CFSTR( "main" ), &gIBNibRef );
require_noerr( result, Oops );
// Once the nib reference is created, set the menu bar. "MainMenu" is the name of the menu bar
// object. This name is set in InterfaceBuilder when the nib is created.
result = SetMenuBarFromNib( gIBNibRef, CFSTR( "MainMenu" ) );
require_noerr( result, Oops );
static EventHandlerUPP tEventHandlerUPP = NewEventHandlerUPP( Handle_AppEvents );
EventTypeSpec list[] = { { kEventClassCommand, kEventCommandProcess } };
EventHandlerRef ref;
InstallApplicationEventHandler( tEventHandlerUPP, GetEventTypeCount( list ), list, 0, &ref );
Initialize_HID( );
// Call the event loop
RunApplicationEventLoop( );
Oops: ;
// We don't need the nib reference anymore.
if ( gIBNibRef ) {
DisposeNibReference( gIBNibRef );
gIBNibRef = NULL;
}
Terminate_HID( );
return result;
} // main
// ****************************************************
#pragma mark -
#pragma mark * local ( static ) function implementations *
// ----------------------------------------------------
// save the current device & element configuration for each action
static OSStatus Save_Config( void )
{
Boolean syncFlag = false;
int a;
for ( a = 0; a < 4; a++ ) {
CFStringRef keyCFStringRef = CFStringCreateWithFormat( kCFAllocatorDefault, NULL, CFSTR( "HID Action #%d" ), a );
if ( keyCFStringRef ) {
syncFlag |= HIDSaveElementPref( keyCFStringRef, kCFPreferencesCurrentApplication, gActionArray[a].fDeviceRef, gActionArray[a].fElementRef );
CFRelease( keyCFStringRef );
}
}
if ( !syncFlag || CFPreferencesAppSynchronize( kCFPreferencesCurrentApplication ) )
return noErr;
else
return paramErr;
} // Save_Config
// ---------------------------------
// load the current device & element configuration for each action
static OSStatus Restore_Configs( void )
{
int a;
for ( a = 0; a < 4; a++ ) {
CFStringRef keyCFStringRef = CFStringCreateWithFormat( kCFAllocatorDefault, NULL, CFSTR( "HID Action #%d" ), a );
action_rec searchAction;
if ( HIDRestoreElementPref ( keyCFStringRef, kCFPreferencesCurrentApplication, &searchAction.fDeviceRef, &searchAction.fElementRef ) ) {
gActionArray[a] = searchAction;
}
}
return noErr;
} // Restore_Configs
#if !USE_VALUE_CALLBACK
// ---------------------------------
// polls for input for all actions based on current mapping
static void Get_Inputs( void )
{
int a;
for ( a = 0; a < 4; a++ ) {
gActionArray[a].fValue = 0;
if ( gActionArray[a].fDeviceRef && gActionArray[a].fElementRef ) {
IOHIDValueRef tIOHIDValueRef;
if ( kIOReturnSuccess == IOHIDDeviceGetValue( gActionArray[a].fDeviceRef, gActionArray[a].fElementRef, &tIOHIDValueRef ) ) {
gActionArray[a].fValue = IOHIDValueGetIntegerValue( tIOHIDValueRef );
}
}
// printf("%s: action: %d, value: %ld.\n", __PRETTY_FUNCTION__, a, gActionArray[a].fValue );
}
} // Get_Inputs
#endif // !USE_VALUE_CALLBACK
// ---------------------------------
// get name of device
static CFStringRef Copy_DeviceName( IOHIDDeviceRef inDeviceRef ) {
CFStringRef result = NULL;
if ( inDeviceRef ) {
CFStringRef manCFStringRef = IOHIDDevice_GetManufacturer( inDeviceRef );
if ( manCFStringRef ) {
// make a copy that we can CFRelease later
CFMutableStringRef tCFStringRef = CFStringCreateMutableCopy( kCFAllocatorDefault, 0, manCFStringRef );
// trim off any trailing spaces
while ( CFStringHasSuffix( tCFStringRef, CFSTR( " " ) ) ) {
CFIndex cnt = CFStringGetLength( tCFStringRef );
if ( !cnt ) break;
CFStringDelete( tCFStringRef, CFRangeMake( cnt - 1, 1 ) );
}
manCFStringRef = tCFStringRef;
} else {
// try the vendor ID source
manCFStringRef = IOHIDDevice_GetVendorIDSource( inDeviceRef );
}
if ( !manCFStringRef ) {
// use the vendor ID to make a manufacturer string
long vendorID = IOHIDDevice_GetVendorID( inDeviceRef );
manCFStringRef = CFStringCreateWithFormat( kCFAllocatorDefault, NULL, CFSTR("vendor: %d"), vendorID );
}
CFStringRef prodCFStringRef = IOHIDDevice_GetProduct( inDeviceRef );
if ( prodCFStringRef ) {
// make a copy that we can CFRelease later
prodCFStringRef = CFStringCreateCopy( kCFAllocatorDefault, prodCFStringRef );
} else {
// use the product ID
long productID = IOHIDDevice_GetProductID( inDeviceRef );
// to make a product string
prodCFStringRef = CFStringCreateWithFormat( kCFAllocatorDefault, NULL, CFSTR("%@ - product id %d"), manCFStringRef, productID );
}
assert( prodCFStringRef );
// if the product name begins with the manufacturer string...
if ( CFStringHasPrefix( prodCFStringRef, manCFStringRef ) ) {
// then just use the product name
result = CFStringCreateCopy( kCFAllocatorDefault, prodCFStringRef );
} else { // otherwise
// append the product name to the manufacturer
result = CFStringCreateWithFormat( kCFAllocatorDefault, NULL, CFSTR("%@ - %@"), manCFStringRef, prodCFStringRef );
}
if ( manCFStringRef ) {
CFRelease( manCFStringRef );
}
if ( prodCFStringRef ) {
CFRelease( prodCFStringRef );
}
}
return result;
} // Copy_DeviceName
// ---------------------------------
// get name of element for display in window;
// try names first then default to more generic derived names if device does not provide explicit names
static void Get_DeviceElementNameString( IOHIDDeviceRef inDeviceRef, IOHIDElementRef inElementRef, char * inCStr )
{
if ( inDeviceRef && inElementRef && inCStr ) {
char cstrDevice[256] = "----", cstrElement[256] = "----";
if ( !inDeviceRef || !inElementRef ) {
return;
}
if ( CFGetTypeID( inDeviceRef ) != IOHIDDeviceGetTypeID() ) {
return;
}
if ( CFGetTypeID( inElementRef ) != IOHIDElementGetTypeID() ) {
return;
}
CFStringRef devCFStringRef = Copy_DeviceName( inDeviceRef );
if ( devCFStringRef ) {
(void) CFStringGetCString( devCFStringRef, cstrDevice, sizeof( cstrDevice ), kCFStringEncodingUTF8 );
CFRelease( devCFStringRef );
}
CFStringRef eleCFStringRef = IOHIDElementGetName( inElementRef );
if ( eleCFStringRef ) {
(void) CFStringGetCString( eleCFStringRef, cstrElement, sizeof( cstrElement ), kCFStringEncodingUTF8 );
} else {
long usagePage = IOHIDElementGetUsagePage( inElementRef );
long usage = IOHIDElementGetUsage( inElementRef );
eleCFStringRef = HIDCopyUsageName( usagePage, usage );
if ( eleCFStringRef ) {
(void) CFStringGetCString( eleCFStringRef, cstrElement, sizeof( cstrElement ), kCFStringEncodingUTF8 );
} else {
sprintf( cstrElement, "ele: %08lX:%08lX", usagePage, usage );
}
}
sprintf( inCStr, "%s, %s", cstrDevice, cstrElement );
}
} // Get_DeviceElementNameString
// ---------------------------------
// set the static text with passed in text
static void Set_ControlText( WindowRef inWindowRef, SInt32 inID, char * inText )
{
ControlID idControl = { 'hidc', inID };
ControlRef control;
GetControlByID( inWindowRef, &idControl, &control );
SetControlData( control, kControlNoPart, kControlStaticTextTextTag, strlen( inText ), inText );
} // Set_ControlText
// ---------------------------------
// extract name from device and set it as the static text for the control
static void Set_DeviceControlNames( WindowRef inWindowRef )
{
if ( inWindowRef ) {
char cstr[512];
int a;
for ( a = 0; a < 4; a++ ) {
if ( gActionArray[a].fDeviceRef && gActionArray[a].fElementRef ) {
Get_DeviceElementNameString( gActionArray[a].fDeviceRef, gActionArray[a].fElementRef, cstr );
} else {
sprintf( cstr, "----" );
}
Set_ControlText( inWindowRef, a + 1, cstr );
}
DrawControls( inWindowRef );
}
} // Set_DeviceControlNames
// ---------------------------------
// get input and update window for each timer beat
static pascal void Handle_TimerEvents( EventLoopTimerRef inTimer, void* inUserData )
{
WindowRef theWindowRef = ( WindowRef ) inUserData;
#pragma unused( inTimer )
#if !USE_VALUE_CALLBACK
// get input values
Get_Inputs( );
#endif // !USE_VALUE_CALLBACK
// update window
ControlRef control;
HIViewRef tHIViewRef;
OSStatus status = HIViewFindByID( HIViewGetRoot( theWindowRef), gGameWindowUserPaneControlID, &tHIViewRef );
if ( noErr == status ) {
status = HIViewSetNeedsDisplay( tHIViewRef, TRUE );
check_noerr( status );
}
status = GetControlByID( theWindowRef, &gGameWindowThrustControlID, &control );
if ( noErr == status ) {
SetControlValue( control, gActionArray[kActionThrust].fValue );
}
status = GetControlByID( theWindowRef, &gGameWindowFireControlID, &control );
if ( noErr == status ) {
SetControlValue( control, gActionArray[kActionFire].fValue );
}
} // Handle_TimerEvents
// ---------------------------------
// handle events for game window
static pascal OSStatus Handle_GameWindowEvents( EventHandlerCallRef inEventHandlerCallRef, EventRef inEventRef, void* inUserData )
{
#pragma unused( inEventHandlerCallRef )
// WindowRef theWindowRef = ( WindowRef ) inUserData;
OSType theClass = GetEventClass( inEventRef );
OSType theKind = GetEventKind( inEventRef );
OSStatus result = eventNotHandledErr, status;
switch ( theClass ) {
case kEventClassControl: {
switch ( theKind ) {
case kEventControlClick: {
break;
}
default: {
break;
}
}
break;
}
case kEventClassCommand: {
HICommand command;
status = GetEventParameter( inEventRef, kEventParamDirectObject, kEventParamHICommand, NULL, sizeof( command ), NULL, &command );
check_noerr( status );
switch ( theKind ) {
case kEventCommandProcess: {
switch ( command.commandID ) {
case kHICommandOK: {
if ( gTimer ) {
RemoveEventLoopTimer( gTimer );
gTimer = NULL;
}
#if USE_VALUE_CALLBACK
int a;
for ( a = 0; a < 4; a++ ) {
if ( gActionArray[a].fDeviceRef ) {
IOHIDDeviceUnscheduleFromRunLoop( gActionArray[a].fDeviceRef, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode );
IOHIDDeviceRegisterInputValueCallback( gActionArray[a].fDeviceRef, NULL, ( void * ) a );
}
}
#endif // USE_VALUE_CALLBACK
DisposeWindow( ( WindowRef ) inUserData );
if ( gGameWindowRef == ( WindowRef ) inUserData ) {
gGameWindowRef = NULL;
}
result = noErr;
break;
}
default: {
break;
}
}
break;
}
default: {
break;
}
}
break;
}
default: {
break;
}
}
return result;
}
// ---------------------------------
// handle events for configuration window
static pascal OSStatus Handle_ConfigurationWindowEvents( EventHandlerCallRef inEventHandlerCallRef, EventRef inEventRef, void* inUserData )
{
#pragma unused( inEventHandlerCallRef )
OSStatus result = eventNotHandledErr;
IOHIDDeviceRef tIOHIDDeviceRef = NULL;
IOHIDElementRef tIOHIDElementRef = NULL;
if ( GetEventKind( inEventRef ) == kEventWindowShown ) {
Set_DeviceControlNames( ( WindowRef ) inUserData );
// continue to process event
} else if ( GetEventKind( inEventRef ) == kEventCommandProcess ) {
HICommand command;
GetEventParameter( inEventRef, kEventParamDirectObject, kEventParamHICommand, NULL, sizeof( command ), NULL, &command );
switch ( command.commandID ) {
case kHICommandXAxis: {
if ( HIDConfigureAction( &tIOHIDDeviceRef, &tIOHIDElementRef, 10.0 ) ) { // timeout ticks
gActionArray[kActionXAxis].fDeviceRef = tIOHIDDeviceRef;
gActionArray[kActionXAxis].fElementRef = tIOHIDElementRef;
Set_DeviceControlNames( ( WindowRef ) inUserData );
}
result = noErr;
break;
}
case kHICommandYAxis: {
if ( HIDConfigureAction( &tIOHIDDeviceRef, &tIOHIDElementRef, 10.0 ) ) { // timeout ticks
gActionArray[kActionYAxis].fDeviceRef = tIOHIDDeviceRef;
gActionArray[kActionYAxis].fElementRef = tIOHIDElementRef;
Set_DeviceControlNames( ( WindowRef ) inUserData );
}
result = noErr;
break;
}
case kHICommandThrust: {
if ( HIDConfigureAction( &tIOHIDDeviceRef, &tIOHIDElementRef, 10.0 ) ) { // timeout ticks
gActionArray[kActionThrust].fDeviceRef = tIOHIDDeviceRef;
gActionArray[kActionThrust].fElementRef = tIOHIDElementRef;
Set_DeviceControlNames( ( WindowRef ) inUserData );
}
result = noErr;
break;
}
case kHICommandFire: {
if ( HIDConfigureAction( &tIOHIDDeviceRef, &tIOHIDElementRef, 10.0 ) ) { // timeout ticks
gActionArray[kActionFire].fDeviceRef = tIOHIDDeviceRef;
gActionArray[kActionFire].fElementRef = tIOHIDElementRef;
Set_DeviceControlNames( ( WindowRef ) inUserData );
}
result = noErr;
break;
}
case kHICommandOK: {
DisposeWindow( ( WindowRef ) inUserData );
if ( gConfigWindowRef == ( WindowRef ) inUserData ) {
gConfigWindowRef = NULL;
}
result = noErr;
break;
}
}
}
return result;
} // Handle_ConfigurationWindowEvents
// ---------------------------------
// Test the output transaction interface
static void Test_TransactionInterface( void )
{
printf( "%s\n", __PRETTY_FUNCTION__ );
fflush ( stdout );
} // Test_TransactionInterface
static void Test_PollDevice( void )
{
printf( "%s\n", __PRETTY_FUNCTION__ );
#if 1 // set true to log devices
{
CFIndex idx, cnt = CFArrayGetCount(gDeviceCFArrayRef);
for ( idx = 0; idx < cnt; idx++ ) {
IOHIDDeviceRef tIOHIDDeviceRef = ( IOHIDDeviceRef ) CFArrayGetValueAtIndex( gDeviceCFArrayRef, idx ) ;
if ( !tIOHIDDeviceRef ) continue;
if ( CFGetTypeID(tIOHIDDeviceRef) != IOHIDDeviceGetTypeID() ) continue;
HIDDumpDeviceInfo( tIOHIDDeviceRef );
}
fflush( stdout );
}
#endif
fflush( stdout );
} // Test_PollDevice
static void Test_PingDevice( void )
{
printf( "%s\n", __PRETTY_FUNCTION__ );
#if 1 // set true to log devices
{
CFIndex idx, cnt = CFArrayGetCount(gDeviceCFArrayRef);
for ( idx = 0; idx < cnt; idx++ ) {
IOHIDDeviceRef tIOHIDDeviceRef = ( IOHIDDeviceRef ) CFArrayGetValueAtIndex( gDeviceCFArrayRef, idx ) ;
if ( !tIOHIDDeviceRef ) continue;
if ( CFGetTypeID(tIOHIDDeviceRef) != IOHIDDeviceGetTypeID() ) continue;
HIDDumpDeviceInfo( tIOHIDDeviceRef );
}
fflush( stdout );
}
#endif
fflush( stdout );
} // Test_PingDevice
// ---------------------------------
// main application event handler
static pascal OSStatus Handle_AppEvents( EventHandlerCallRef inEventHandlerCallRef, EventRef inEventRef, void* inUserData )
{
#pragma unused( inEventHandlerCallRef, inUserData )
OSStatus result = eventNotHandledErr;
if ( GetEventKind( inEventRef ) == kEventCommandProcess ) {
HICommand command;
GetEventParameter( inEventRef, kEventParamDirectObject, kEventParamHICommand, NULL, sizeof( command ), NULL, &command );
switch ( command.commandID ) {
case kHICommandGoGo: {
EventHandlerRef ref;
EventTypeSpec list[] = {
{ kEventClassControl, kEventControlClick },
{ kEventClassCommand, kEventCommandProcess } };
if ( !gGameWindowRef ) {
result = CreateWindowFromNib( gIBNibRef, CFSTR( "GameWindow" ), &gGameWindowRef );
if ( !gGameEvtHandler ) {
gGameEvtHandler = NewEventHandlerUPP( Handle_GameWindowEvents );
}
InstallWindowEventHandler( gGameWindowRef, gGameEvtHandler, GetEventTypeCount( list ), list, ( void * ) gGameWindowRef, &ref );
}
HIViewRef tHIViewRef;
OSStatus status = HIViewFindByID( HIViewGetRoot( gGameWindowRef ), gGameWindowUserPaneControlID, &tHIViewRef );
if ( noErr == status ) {
EventTypeSpec eventTypes[] = { { kEventClassControl, kEventControlDraw } };
status = HIViewInstallEventHandler( tHIViewRef, Handle_HIViewEvents, GetEventTypeCount( eventTypes ), eventTypes, ( void * ) tHIViewRef, &ref );
check_noerr( status );
}
#if USE_QUEUES
if ( !gIOHIDQueueRefsCFArrayRef ) {
gIOHIDQueueRefsCFArrayRef = CFArrayCreateMutable( kCFAllocatorDefault, 0, &kCFTypeArrayCallBacks );
}
int a;
for ( a = 0; a < 4; a++ ) {
if ( gActionArray[a].fDeviceRef ) {
IOHIDQueueRef tIOHIDQueueRef = NULL;
// see if we already have a queue for this device
int idx, cnt = CFArrayGetCount( gIOHIDQueueRefsCFArrayRef );
for ( idx = 0; idx < cnt; idx++ ) {
IOHIDQueueRef tempIOHIDQueueRef = ( IOHIDQueueRef ) CFArrayGetValueAtIndex( gIOHIDQueueRefsCFArrayRef, idx );
if ( !tempIOHIDQueueRef ) continue;
if ( gActionArray[a].fDeviceRef == IOHIDQueueGetDevice( tempIOHIDQueueRef ) ) {
tIOHIDQueueRef = tempIOHIDQueueRef;
IOHIDQueueStop( tIOHIDQueueRef ); // we'll restart it below
break;
}
}
if ( !tIOHIDQueueRef ) { // nope, create one
tIOHIDQueueRef = IOHIDQueueCreate( kCFAllocatorDefault, gActionArray[a].fDeviceRef, 256, 0 );
if ( tIOHIDQueueRef ) { // and add it to our array of queues
CFArrayAppendValue( gIOHIDQueueRefsCFArrayRef, tIOHIDQueueRef );
}
}
if ( tIOHIDQueueRef ) {
IOHIDQueueAddElement( tIOHIDQueueRef, gActionArray[a].fElementRef);
IOHIDQueueRegisterValueAvailableCallback( tIOHIDQueueRef, Handle_ValueAvailableCallback, NULL );
IOHIDQueueScheduleWithRunLoop( tIOHIDQueueRef, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode );
IOHIDQueueStart( tIOHIDQueueRef );
}
}
}
#elif USE_VALUE_CALLBACK
int a;
for ( a = 0; a < 4; a++ ) {
if ( gActionArray[a].fDeviceRef ) {
IOHIDDeviceScheduleWithRunLoop( gActionArray[a].fDeviceRef, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode );
IOHIDDeviceRegisterInputValueCallback( gActionArray[a].fDeviceRef, Handle_InputValueCallback, ( void * ) a );
}
}
#else
// install timer
if ( gTimer ) {
RemoveEventLoopTimer( gTimer );
}
static EventLoopTimerUPP sTimerUPP = NULL;
if ( !sTimerUPP ) {
sTimerUPP = NewEventLoopTimerUPP( Handle_TimerEvents );
}
InstallEventLoopTimer( GetCurrentEventLoop( ), 0.0, 0.1, sTimerUPP, ( void * ) gGameWindowRef, &gTimer );
#endif USE_VALUE_CALLBACK
ShowWindow( gGameWindowRef );
break;
}
case kHICommandConfig: {
if ( !gConfigWindowRef ) {
EventHandlerRef ref;
EventTypeSpec list[] = {
{ kEventClassWindow, kEventWindowShown},
{ kEventClassControl, kEventControlClick },
{ kEventClassCommand, kEventCommandProcess } };
result = CreateWindowFromNib( gIBNibRef, CFSTR( "ConfigWindow" ), &gConfigWindowRef );
if ( !gConfigEvtHandler ) {
gConfigEvtHandler = NewEventHandlerUPP( Handle_ConfigurationWindowEvents );
}
InstallWindowEventHandler( gConfigWindowRef, gConfigEvtHandler, GetEventTypeCount( list ), list, ( void * )gConfigWindowRef, &ref );
}
Set_DeviceControlNames( gConfigWindowRef );
ShowWindow( gConfigWindowRef );
break;
}
case kHICommandSave: {
result = Save_Config( );
break;
}
case kHICommandRestore: {
Restore_Configs( );
Set_DeviceControlNames( gConfigWindowRef );
result = noErr;
break;
}
case kHICommandReBuild: {
(void) HIDBuildMultiDeviceList( nil, nil, 0 );
Restore_Configs( );
Set_DeviceControlNames( gConfigWindowRef );
result = noErr;
break;
}
case kHICommandTest: {
Test_TransactionInterface( );
result = noErr;
break;
}
case kHICommandPoll: {
Test_PollDevice( );
result = noErr;
break;
}
case kHICommandPing: {
break;
Test_PingDevice( );
result = noErr;
}
}
}
return result;
} // Handle_AppEvents
// ---------------------------------
// handle events for user pane
static pascal OSStatus Handle_HIViewEvents( EventHandlerCallRef inEventHandlerCallRef, EventRef inEventRef, void* inUserData )
{
#pragma unused( inEventHandlerCallRef )
HIViewRef theHIViewRef = ( HIViewRef ) inUserData;
OSType theClass = GetEventClass( inEventRef );
OSType theKind = GetEventKind( inEventRef );
OSStatus result = eventNotHandledErr, status;
switch ( theClass ) {
case kEventClassControl: {
//status = GetEventParameter( inEventRef, kEventParamDirectObject, typeControlRef, NULL, sizeof( HIViewRef ), NULL, &theHIViewRef );
//check_noerr( status );
switch ( theKind ) {
case kEventControlDraw: {
// update user pane
CGContextRef tCGContextRef;
status = GetEventParameter( inEventRef, kEventParamCGContextRef, typeCGContextRef, NULL, sizeof( CGContextRef ), NULL, &tCGContextRef );
if ( noErr == status ) {
HIRect boundsHIRect;
HIViewGetBounds( theHIViewRef, &boundsHIRect );
const float bubbleSize = 4.0f;
// draw the border
CGContextSetRGBStrokeColor( tCGContextRef, 0.0f, 0.0f, 1.0f, 1.0f );
CGContextStrokeRect( tCGContextRef, boundsHIRect );
// now compute and draw a bubble for the X & Y axis inputs
{
float width = CGRectGetWidth( boundsHIRect );
float height = CGRectGetHeight( boundsHIRect );
CFIndex valueMinX, valueMaxX, valueRangeX;
valueMinX = IOHIDElementGetLogicalMin( gActionArray[kActionXAxis].fElementRef );
valueMaxX = IOHIDElementGetLogicalMax( gActionArray[kActionXAxis].fElementRef );
valueRangeX = valueMaxX - valueMinX;
float xPos = ( ( ( gActionArray[kActionXAxis].fValue - valueMinX ) * width ) / valueRangeX ) + CGRectGetMinX( boundsHIRect );
CFIndex valueMinY, valueMaxY, valueRangeY;
valueMinY = IOHIDElementGetLogicalMin( gActionArray[kActionYAxis].fElementRef );
valueMaxY = IOHIDElementGetLogicalMax( gActionArray[kActionYAxis].fElementRef );
valueRangeY = valueMaxY - valueMinY;
float yPos = ( ( ( gActionArray[kActionYAxis].fValue - valueMinY ) * height ) / valueRangeY ) + CGRectGetMinY( boundsHIRect );
#if 0
double valueX = HIDGetElementValue( gActionArray[kActionXAxis].fDeviceRef, gActionArray[kActionXAxis].fElementRef, kIOHIDValueScaleTypePhysical );
double valueY = HIDGetElementValue( gActionArray[kActionYAxis].fDeviceRef, gActionArray[kActionYAxis].fElementRef, kIOHIDValueScaleTypePhysical );
printf( "x: %f, y: %f\n", valueX, valueY );
#endif
CGContextSetRGBFillColor( tCGContextRef, 1.0f, 0.0f, 0.0f, 1.0f );
CGRect circleCGRect = CGRectMake(xPos - bubbleSize, yPos - bubbleSize, 2.0f * bubbleSize, 2.0f * bubbleSize );
CGContextFillEllipseInRect( tCGContextRef, circleCGRect );
}
}
result = noErr;
break;
}
default: {
break;
}
}
break;
}
}
return result;
} // Handle_HIViewEvents
//--------------------------------------------------------------------------------------------
static OSStatus Initialize_HID( void )
{
OSStatus result = -1;
// create the manager
gIOHIDManagerRef = IOHIDManagerCreate( kCFAllocatorDefault, kIOHIDOptionsTypeNone );
if ( gIOHIDManagerRef ) {
// open it
IOReturn tIOReturn = IOHIDManagerOpen( gIOHIDManagerRef, kIOHIDOptionsTypeNone );
if ( kIOReturnSuccess == tIOReturn ) {
printf( "%s: IOHIDManager (%p) creaded and opened!\n", __PRETTY_FUNCTION__, ( void * ) gIOHIDManagerRef );
} else {
fprintf( stderr, "%s: Couldn't open IOHIDManager.\n", __PRETTY_FUNCTION__ );
}
} else {
fprintf( stderr, "%s: Couldn't create a IOHIDManager.\n", __PRETTY_FUNCTION__ );
}
if ( gIOHIDManagerRef ) {
// register callbacks
#if USE_HOT_PLUGGING
IOHIDManagerRegisterDeviceMatchingCallback( gIOHIDManagerRef, Handle_DeviceMatchingCallback, NULL );
#endif // USE_HOT_PLUGGING
#if USE_REMOVAL_CALLBACK
IOHIDManagerRegisterDeviceRemovalCallback( gIOHIDManagerRef, Handle_RemovalCallback, NULL );
#endif // USE_REMOVAL_CALLBACK
// schedule with runloop
IOHIDManagerScheduleWithRunLoop( gIOHIDManagerRef, CFRunLoopGetCurrent( ), kCFRunLoopDefaultMode );
}
require ( HIDBuildMultiDeviceList( nil, nil, 0 ), Oops ) ;
#if TRUE // set true to log devices
{
CFIndex idx, cnt = CFArrayGetCount( gDeviceCFArrayRef );
for ( idx = 0; idx < cnt; idx++ ) {
IOHIDDeviceRef tIOHIDDeviceRef = ( IOHIDDeviceRef ) CFArrayGetValueAtIndex( gDeviceCFArrayRef, idx ) ;
if ( !tIOHIDDeviceRef ) continue;
if ( CFGetTypeID( tIOHIDDeviceRef ) != IOHIDDeviceGetTypeID( ) ) continue;
HIDDumpDeviceInfo( tIOHIDDeviceRef );
}
fflush( stdout );
}
#endif
#if !USE_HOT_PLUGGING
Restore_Configs( );
#endif // !USE_HOT_PLUGGING
Oops: ;
return result;
} // Initialize_HID
static OSStatus Terminate_HID( void )
{
if ( gIOHIDManagerRef ) {
#if USE_QUEUES
if ( gIOHIDQueueRefsCFArrayRef ) {
int idx, cnt = CFArrayGetCount( gIOHIDQueueRefsCFArrayRef );
for ( idx = 0; idx < cnt; idx++) {
IOHIDQueueRef tIOHIDQueueRef = ( IOHIDQueueRef ) CFArrayGetValueAtIndex( gIOHIDQueueRefsCFArrayRef, idx );
if ( !tIOHIDQueueRef ) continue;
CFRelease( tIOHIDQueueRef );