* Removed CMCocoaJoystick, moved C callback to CMCocoaKeyboard (was a…

… Coleco callback) * Added HashSet.c * Added gamepad support
CocoaMSX · Mar 19, 2013 · 0c6e947 · 0c6e947
1 parent 3ef4f71
commit 0c6e947
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Showing 16 changed files with 893 additions and 196 deletions.
diff --git a/Cocoa/CMGamepad.h b/Cocoa/CMGamepad.h
@@ -0,0 +1,70 @@
+//
+//  CMGamepad.h
+//  CocoaMSX
+//
+//  Created by Akop Karapetyan on 3/18/13.
+//  Copyright (c) 2013 Akop Karapetyan. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+#import <IOKit/hid/IOHIDLib.h>
+
+@interface CMGamepadEvent : NSObject
+{
+    NSInteger _usagePage;
+    NSInteger _usage;
+    NSInteger _value;
+}
+
+- (id)initWithUsagePage:(NSInteger)usagePage
+                  usage:(NSInteger)usage
+                  value:(NSInteger)value;
+
+- (NSInteger)usagePage;
+- (NSInteger)usage;
+- (NSInteger)value;
+
+@end
+
+@interface CMGamepad : NSObject
+{
+    id _delegate;
+
+    BOOL registeredForEvents;
+    IOHIDDeviceRef hidDevice;
+    NSMutableDictionary *deviceProperties;
+}
+
+@property (nonatomic, assign) id delegate;
+
++ (id)gamepadWithHidDevice:(IOHIDDeviceRef)device;
+
+- (id)initWithHidDevice:(IOHIDDeviceRef)device;
+
+- (NSString *)name;
+
+@end
+
+@protocol CMGamepadDelegate
+
+@optional
+- (void)gamepadDidConnect:(CMGamepad *)gamepad;
+- (void)gamepadDidDisconnect:(CMGamepad *)gamepad;
+
+- (void)gamepad:(CMGamepad *)gamepad
+       xChanged:(NSInteger)newValue
+         center:(NSInteger)center
+          event:(CMGamepadEvent *)event;
+- (void)gamepad:(CMGamepad *)gamepad
+       yChanged:(NSInteger)newValue
+         center:(NSInteger)center
+          event:(CMGamepadEvent *)event;
+
+- (void)gamepad:(CMGamepad *)gamepad
+     buttonDown:(NSInteger)index
+          event:(CMGamepadEvent *)event;
+- (void)gamepad:(CMGamepad *)gamepad
+       buttonUp:(NSInteger)index
+          event:(CMGamepadEvent *)event;
+
+@end
diff --git a/Cocoa/CMGamepad.m b/Cocoa/CMGamepad.m
@@ -0,0 +1,279 @@
+//
+//  CMGamepad.m
+//  CocoaMSX
+//
+//  Created by Akop Karapetyan on 3/18/13.
+//  Copyright (c) 2013 Akop Karapetyan. All rights reserved.
+//
+
+#import "CMGamepad.h"
+
+#define AXIS_CENTER 127
+
+#pragma mark - CMGamepadEvent
+
+@interface CMGamepadEvent ()
+
++ (CMGamepadEvent *)gamepadEventWithUsagePage:(NSInteger)usagePage
+                                        usage:(NSInteger)usage
+                                        value:(NSInteger)value;
+
+@end
+
+@implementation CMGamepadEvent
+
++ (CMGamepadEvent *)gamepadEventWithUsagePage:(NSInteger)usagePage
+                                        usage:(NSInteger)usage
+                                        value:(NSInteger)value
+{
+    CMGamepadEvent *gamepadEvent = [[CMGamepadEvent alloc] initWithUsagePage:usagePage
+                                                                       usage:usage
+                                                                       value:value];
+
+    return [gamepadEvent autorelease];
+}
+
+- (id)initWithUsagePage:(NSInteger)usagePage
+                  usage:(NSInteger)usage
+                  value:(NSInteger)value
+{
+    if ((self = [self init]))
+    {
+        _usagePage = usagePage;
+        _usage = usage;
+        _value = value;
+    }
+
+    return self;
+}
+
+- (NSInteger)usagePage
+{
+    return _usagePage;
+}
+
+- (NSInteger)usage
+{
+    return _usage;
+}
+
+- (NSInteger)value
+{
+    return _value;
+}
+
+@end
+
+#pragma mark - CMGamepad
+
+static void gamepadInputValueCallback(void *context, IOReturn result, void *sender, IOHIDValueRef value);
+
+@interface CMGamepad()
+
+- (void)registerForEvents;
+- (void)unregisterFromEvents;
+
+- (void)gamepadDidConnect:(CMGamepad *)gamepad;
+- (void)gamepadDidDisconnect:(CMGamepad *)gamepad;
+
+- (void)gamepad:(CMGamepad *)gamepad
+       xChanged:(NSInteger)newValue
+         center:(NSInteger)center
+          event:(CMGamepadEvent *)event;
+- (void)gamepad:(CMGamepad *)gamepad
+       yChanged:(NSInteger)newValue
+         center:(NSInteger)center
+          event:(CMGamepadEvent *)event;
+
+- (void)gamepad:(CMGamepad *)gamepad
+     buttonDown:(NSInteger)index
+          event:(CMGamepadEvent *)event;
+- (void)gamepad:(CMGamepad *)gamepad
+       buttonUp:(NSInteger)index
+          event:(CMGamepadEvent *)event;
+
+- (void)didReceiveInputValue:(IOHIDValueRef)valueRef;
+
+@end
+
+@implementation CMGamepad
+
+@synthesize delegate = _delegate;
+
++ (id)gamepadWithHidDevice:(IOHIDDeviceRef)device
+{
+    return [[[CMGamepad alloc] initWithHidDevice:device] autorelease];
+}
+
+- (id)initWithHidDevice:(IOHIDDeviceRef)device
+{
+    if ((self = [self init]))
+    {
+        registeredForEvents = NO;
+        hidDevice = device;
+
+        IOObjectRetain(hidDevice);
+
+        deviceProperties = [[NSMutableDictionary alloc] init];
+        [deviceProperties setObject:(NSString *)IOHIDDeviceGetProperty(hidDevice, CFSTR(kIOHIDProductKey))
+                             forKey:@"productKey"];
+
+        [self registerForEvents];
+    }
+
+    return self;
+}
+
+- (void)dealloc
+{
+    [self unregisterFromEvents];
+
+    IOObjectRelease(hidDevice);
+    [deviceProperties release];
+
+    [super dealloc];
+}
+
+- (void)registerForEvents
+{
+    if (!registeredForEvents)
+    {
+        IOHIDDeviceOpen(hidDevice, kIOHIDOptionsTypeNone);
+        IOHIDDeviceRegisterInputValueCallback(hidDevice, gamepadInputValueCallback, self);
+
+        registeredForEvents = YES;
+
+        [self gamepadDidConnect:self];
+    }
+}
+
+- (void)unregisterFromEvents
+{
+    if (registeredForEvents)
+    {
+//        IOHIDDeviceClose(hidDevice, kIOHIDOptionsTypeNone);
+
+        registeredForEvents = NO;
+
+        [self gamepadDidDisconnect:self];
+    }
+}
+
+- (NSString *)name
+{
+    return [deviceProperties objectForKey:@"productKey"];
+}
+
+- (void)gamepadDidConnect:(CMGamepad *)gamepad
+{
+    if ([_delegate respondsToSelector:_cmd])
+        [_delegate gamepadDidConnect:gamepad];
+}
+
+- (void)gamepadDidDisconnect:(CMGamepad *)gamepad
+{
+    if ([_delegate respondsToSelector:_cmd])
+        [_delegate gamepadDidDisconnect:gamepad];
+}
+
+- (void)gamepad:(CMGamepad *)gamepad
+       xChanged:(NSInteger)newValue
+         center:(NSInteger)center
+          event:(CMGamepadEvent *)event
+{
+    if ([_delegate respondsToSelector:_cmd])
+        [_delegate gamepad:gamepad
+                  xChanged:newValue
+                    center:center
+                     event:event];
+}
+
+- (void)gamepad:(CMGamepad *)gamepad
+       yChanged:(NSInteger)newValue
+         center:(NSInteger)center
+          event:(CMGamepadEvent *)event
+{
+    if ([_delegate respondsToSelector:_cmd])
+        [_delegate gamepad:gamepad
+                  yChanged:newValue
+                    center:center
+                     event:event];
+}
+
+- (void)gamepad:(CMGamepad *)gamepad
+     buttonDown:(NSInteger)index
+          event:(CMGamepadEvent *)event
+{
+    if ([_delegate respondsToSelector:_cmd])
+        [_delegate gamepad:gamepad
+                buttonDown:index
+                     event:event];
+}
+
+- (void)gamepad:(CMGamepad *)gamepad
+       buttonUp:(NSInteger)index
+          event:(CMGamepadEvent *)event
+{
+    if ([_delegate respondsToSelector:_cmd])
+        [_delegate gamepad:gamepad
+                  buttonUp:index
+                     event:event];
+}
+
+- (void)didReceiveInputValue:(IOHIDValueRef)valueRef
+{
+    IOHIDElementRef element = IOHIDValueGetElement(valueRef);
+
+    NSInteger usagePage = IOHIDElementGetUsagePage(element);
+    NSInteger usage = IOHIDElementGetUsage(element);
+    NSInteger value = IOHIDValueGetIntegerValue(valueRef);
+
+    CMGamepadEvent *event = [CMGamepadEvent gamepadEventWithUsagePage:usagePage
+                                                                usage:usage
+                                                                value:value];
+
+    if (usagePage == kHIDPage_GenericDesktop)
+    {
+        if (usage == kHIDUsage_GD_X)
+        {
+            [self gamepad:self
+                 xChanged:value
+                   center:AXIS_CENTER
+                    event:event];
+        }
+        else if (usage == kHIDUsage_GD_Y)
+        {
+            [self gamepad:self
+                 yChanged:value
+                   center:AXIS_CENTER
+                    event:event];
+        }
+    }
+    else if (usagePage == kHIDPage_Button)
+    {
+        if (!value)
+        {
+            [self gamepad:self
+                 buttonUp:usage
+                    event:event];
+        }
+        else
+        {
+            [self gamepad:self
+               buttonDown:usage
+                    event:event];
+        }
+    }
+}
+
+@end
+
+#pragma mark - IOHID C Callbacks
+
+static void gamepadInputValueCallback(void *context, IOReturn result, void *sender, IOHIDValueRef value)
+{
+    @autoreleasepool
+    {
+        [(CMGamepad *)context didReceiveInputValue:value];
+    }
+}
diff --git a/Cocoa/CMGamepadManager.h b/Cocoa/CMGamepadManager.h
@@ -0,0 +1,24 @@
+//
+//  CMGamepadManager.h
+//  CocoaMSX
+//
+//  Created by Akop Karapetyan on 3/18/13.
+//  Copyright (c) 2013 Akop Karapetyan. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+#import <IOKit/hid/IOHIDLib.h>
+
+#import "CMGamepad.h"
+
+@interface CMGamepadManager : NSObject<CMGamepadDelegate>
+{
+    IOHIDManagerRef hidManager;
+    NSMutableDictionary *gamepads;
+
+    id _delegate;
+}
+
+@property (nonatomic, assign) id delegate;
+
+@end