Added initial support for MFi game controllers on iOS.

WhatsNew.txt

@@ -67,6 +67,7 @@ Linux:
 
 iOS:
 * Added support for iOS 8
+* Added support for MFi game controllers
 * Added support for the hint SDL_HINT_ACCELEROMETER_AS_JOYSTICK
 * Added sRGB OpenGL ES context support on iOS 7+
 * Added native resolution support for the iPhone 6 Plus

Xcode-iOS/Demos/Demos.xcodeproj/project.pbxproj

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Xcode-iOS/SDL/SDL.xcodeproj/project.pbxproj

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@@ -634,6 +636,7 @@
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 			path = iphoneos;
@@ -1037,6 +1040,7 @@
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 				AA7558BF1595D55500BBD41B /* SDL_shape.h in Headers */,
 				AA7558C01595D55500BBD41B /* SDL_stdinc.h in Headers */,
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@@ -1282,7 +1286,6 @@
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@@ -1298,7 +1301,6 @@
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Xcode-iOS/Template/SDL iOS Application/___PROJECTNAME___.xcodeproj/project.pbxproj

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Xcode-iOS/Test/TestiPhoneOS.xcodeproj/project.pbxproj

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+		FA0EF2291BAF4487000E07A6 /* button.bmp */ = {isa = PBXFileReference; lastKnownFileType = image.bmp; name = button.bmp; path = ../../test/button.bmp; sourceTree = "<group>"; };
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+				FAE0E9881BAF9B230098DFA4 /* CoreMotion.framework in Frameworks */,
+				FAE0E9891BAF9B230098DFA4 /* AudioToolbox.framework in Frameworks */,
+				FAE0E98A1BAF9B230098DFA4 /* QuartzCore.framework in Frameworks */,
+				FAE0E98B1BAF9B230098DFA4 /* OpenGLES.framework in Frameworks */,
+				FAE0E98C1BAF9B230098DFA4 /* CoreGraphics.framework in Frameworks */,
+				FAE0E98D1BAF9B230098DFA4 /* UIKit.framework in Frameworks */,
+				FAE0E98E1BAF9B230098DFA4 /* Foundation.framework in Frameworks */,
+				FAE0E98F1BAF9B230098DFA4 /* CoreAudio.framework in Frameworks */,
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@@ -788,6 +873,7 @@
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 			children = (
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+				FA0EF2291BAF4487000E07A6 /* button.bmp */,
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 				FDA8AADA0E2D33BA00EA573E /* moose.dat */,
@@ -943,6 +1033,23 @@
 			productReference = AAE7DFB114CBB54E00DF1A0E /* testrendertarget.app */;
 			productType = "com.apple.product-type.application";
 		};
+		FAE0E9801BAF9B230098DFA4 /* testgamecontroller */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = FAE0E9901BAF9B230098DFA4 /* Build configuration list for PBXNativeTarget "testgamecontroller" */;
+			buildPhases = (
+				FAE0E9811BAF9B230098DFA4 /* Resources */,
+				FAE0E9831BAF9B230098DFA4 /* Sources */,
+				FAE0E9851BAF9B230098DFA4 /* Frameworks */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = testgamecontroller;
+			productName = Test;
+			productReference = FAE0E9931BAF9B230098DFA4 /* testgamecontroller.app */;
+			productType = "com.apple.product-type.application";
+		};
 		FDA8AAAA0E2D330F00EA573E /* loopwav */ = {
 			isa = PBXNativeTarget;
 			buildConfigurationList = FDA8AAB80E2D330F00EA573E /* Build configuration list for PBXNativeTarget "loopwav" */;
@@ -1270,6 +1377,7 @@
 				FDC42FEF0F0D866D009C87E1 /* testdraw2 */,
 				FDAAC58A0E2D5429001DB1D8 /* testerror */,
 				FDAAC5B80E2D55B5001DB1D8 /* testfile */,
+				FAE0E9801BAF9B230098DFA4 /* testgamecontroller */,
 				046CEF7513254F23007AD51D /* testgesture */,
 				FDAAC6150E2D5914001DB1D8 /* testgles */,
 				FDD2C1700E2E52C000B7A85F /* testiconv */,
@@ -1357,6 +1465,17 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		FAE0E9811BAF9B230098DFA4 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				FAE0E9961BAF9B650098DFA4 /* controllermap.bmp in Resources */,
+				FAE0E9821BAF9B230098DFA4 /* icon.bmp in Resources */,
+				FAE0E9981BAF9B6E0098DFA4 /* axis.bmp in Resources */,
+				FAE0E9971BAF9B6A0098DFA4 /* button.bmp in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 		FDA8AAAB0E2D330F00EA573E /* Resources */ = {
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
@@ -1533,6 +1652,14 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		FAE0E9831BAF9B230098DFA4 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				FAE0E9951BAF9B510098DFA4 /* testgamecontroller.c in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 		FDA8AAAC0E2D330F00EA573E /* Sources */ = {
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
@@ -1601,7 +1728,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				FDD2C1A80E2E536400B7A85F /* testjoystick.c in Sources */,
+				FA0EF22E1BAF4654000E07A6 /* testjoystick.c in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -1794,6 +1921,22 @@
 			};
 			name = Release;
 		};
+		FAE0E9911BAF9B230098DFA4 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				INFOPLIST_FILE = Info.plist;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+			};
+			name = Debug;
+		};
+		FAE0E9921BAF9B230098DFA4 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				INFOPLIST_FILE = Info.plist;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+			};
+			name = Release;
+		};
 		FDA8AAB90E2D330F00EA573E /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
@@ -2132,6 +2275,15 @@
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
 		};
+		FAE0E9901BAF9B230098DFA4 /* Build configuration list for PBXNativeTarget "testgamecontroller" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				FAE0E9911BAF9B230098DFA4 /* Debug */,
+				FAE0E9921BAF9B230098DFA4 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
 		FDA8AAB80E2D330F00EA573E /* Build configuration list for PBXNativeTarget "loopwav" */ = {
 			isa = XCConfigurationList;
 			buildConfigurations = (

configure

@@ -23433,6 +23433,7 @@ $as_echo "#define SDL_FILESYSTEM_HAIKU 1" >>confdefs.h
         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox"
         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreGraphics"
         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreMotion"
+        EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,GameController"
         ;;
     *-*-darwin* )
         # This could be either full "Mac OS X", or plain "Darwin" which is

include/SDL_config.h.cmake

@@ -235,6 +235,7 @@
 #cmakedefine SDL_JOYSTICK_XINPUT @SDL_JOYSTICK_XINPUT@
 #cmakedefine SDL_JOYSTICK_DUMMY @SDL_JOYSTICK_DUMMY@
 #cmakedefine SDL_JOYSTICK_IOKIT @SDL_JOYSTICK_IOKIT@
+#cmakedefine SDL_JOYSTICK_MFI @SDL_JOYSTICK_MFI@
 #cmakedefine SDL_JOYSTICK_LINUX @SDL_JOYSTICK_LINUX@
 #cmakedefine SDL_JOYSTICK_WINMM @SDL_JOYSTICK_WINMM@
 #cmakedefine SDL_JOYSTICK_USBHID @SDL_JOYSTICK_USBHID@

include/SDL_config_iphoneos.h

@@ -115,8 +115,11 @@
 /* Enable the stub haptic driver (src/haptic/dummy/\*.c) */
 #define SDL_HAPTIC_DUMMY 1
 
+/* Enable MFi joystick support */
+#define SDL_JOYSTICK_MFI 1
+
 /* Enable Unix style SO loading */
-/* Technically this works, but it violates the iPhone developer agreement */
+/* Technically this works, but violates the iOS dev agreement prior to iOS 8 */
 /* #define SDL_LOADSO_DLOPEN 1 */
 
 /* Enable the stub shared object loader (src/loadso/dummy/\*.c) */
@@ -148,9 +151,6 @@
 /* enable iOS extended launch screen */
 #define SDL_IPHONE_LAUNCHSCREEN 1
 
-/* enable joystick subsystem */
-#define SDL_JOYSTICK_DISABLED 0
-
 /* Set max recognized G-force from accelerometer
    See src/joystick/uikit/SDL_sysjoystick.m for notes on why this is needed
  */

premake/README-ios.txt

@@ -26,6 +26,7 @@ Xcode-iOS project. Those are:
   -Foundation.framework
   -CoreAudio.framework
   -CoreMotion.framework
+  -GameController.framework
 
 All of these frameworks are part of the iOS SDK, not part of the core OS X
 system.

premake/Xcode-iOS/Demos/happy/happy.xcodeproj/project.pbxproj

@@ -3,55 +3,55 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 45;
+	objectVersion = 46;
 	objects = {
 
 /* Begin PBXBuildFile section */
-		43587E112FDE41E3486A5141 /* icon.bmp in Resources */ = {isa = PBXBuildFile; fileRef = 67E105821F9D19C248BF17B6 /* icon.bmp */; };
-		2F5A7AB72FA52C3D029335B6 /* common.c in Sources */ = {isa = PBXBuildFile; fileRef = 49AD32CF351438B316C15B7A /* common.c */; };
-		66455D1E7E3179156E546AA8 /* happy.c in Sources */ = {isa = PBXBuildFile; fileRef = 1F0270E77CC100E968633EBA /* happy.c */; };
-		04CE7E9842C4612763496460 /* AudioToolbox.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 2C147BCA187412202A676460 /* AudioToolbox.framework */; };
-		5DC8148934C32F3407541C0F /* QuartzCore.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 5DDB080C0C872DF96CEE0B62 /* QuartzCore.framework */; };
 		039E2FCB749D2AE6705435A4 /* OpenGLES.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 3B210870772357A20E4576EE /* OpenGLES.framework */; };
-		263A59BA6D20796421AC3870 /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 603E37DB4001230953C943FD /* CoreGraphics.framework */; };
-		7E2000C447ED370218691A83 /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 49C87CB0268927E071506CEA /* UIKit.framework */; };
+		04CE7E9842C4612763496460 /* AudioToolbox.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 2C147BCA187412202A676460 /* AudioToolbox.framework */; };
 		081D5E427A420BEA66DF6129 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 489C1A076394164C7F853083 /* Foundation.framework */; };
-		65AC30DF305741C6521420A7 /* CoreAudio.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 7AF1729947305D7E10DA777D /* CoreAudio.framework */; };
+		263A59BA6D20796421AC3870 /* CoreGraphics.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 603E37DB4001230953C943FD /* CoreGraphics.framework */; };
+		2F5A7AB72FA52C3D029335B6 /* common.c in Sources */ = {isa = PBXBuildFile; fileRef = 49AD32CF351438B316C15B7A /* common.c */; };
 		424C13DC60653FEE6370536B /* libSDL2.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 327333F1228F1B0D0A582BEC /* libSDL2.a */; };
+		43587E112FDE41E3486A5141 /* icon.bmp in Resources */ = {isa = PBXBuildFile; fileRef = 67E105821F9D19C248BF17B6 /* icon.bmp */; };
+		5DC8148934C32F3407541C0F /* QuartzCore.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 5DDB080C0C872DF96CEE0B62 /* QuartzCore.framework */; };
+		65AC30DF305741C6521420A7 /* CoreAudio.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 7AF1729947305D7E10DA777D /* CoreAudio.framework */; };
+		66455D1E7E3179156E546AA8 /* happy.c in Sources */ = {isa = PBXBuildFile; fileRef = 1F0270E77CC100E968633EBA /* happy.c */; };
+		7E2000C447ED370218691A83 /* UIKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 49C87CB0268927E071506CEA /* UIKit.framework */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
-		73DD36916E01179F50147B85 /* PBXContainerItemProxy */ = {
-			isa = PBXContainerItemProxy;
-			containerPortal = 45B64B000539221732843506 /* SDL2.xcodeproj */;
-			proxyType = 2;
-			remoteGlobalIDString = 224D2C85085A7BA60E532655;
-			remoteInfo = "libSDL2.a";
-		};
 		6D92213A249742C860667923 /* PBXContainerItemProxy */ = {
 			isa = PBXContainerItemProxy;
 			containerPortal = 45B64B000539221732843506 /* SDL2.xcodeproj */;
 			proxyType = 1;
 			remoteGlobalIDString = 515D4C462ACD2DA8180E7783;
-			remoteInfo = "libSDL2.a";
+			remoteInfo = libSDL2.a;
+		};
+		73DD36916E01179F50147B85 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 45B64B000539221732843506 /* SDL2.xcodeproj */;
+			proxyType = 2;
+			remoteGlobalIDString = 224D2C85085A7BA60E532655;
+			remoteInfo = libSDL2.a;
 		};
 /* End PBXContainerItemProxy section */
 
 /* Begin PBXFileReference section */
-		4E8504577F0B2DC43C2073B9 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; name = "Info.plist"; path = "../../../../Xcode-iOS/Demos/Info.plist"; sourceTree = "<group>"; };
-		67E105821F9D19C248BF17B6 /* icon.bmp */ = {isa = PBXFileReference; lastKnownFileType = image.bmp; name = "icon.bmp"; path = "../../../../Xcode-iOS/Demos/data/icon.bmp"; sourceTree = "<group>"; };
-		49AD32CF351438B316C15B7A /* common.c */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.c; name = "common.c"; path = "../../../../Xcode-iOS/Demos/src/common.c"; sourceTree = "<group>"; };
-		4346585005E47029491C60D0 /* common.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = "common.h"; path = "../../../../Xcode-iOS/Demos/src/common.h"; sourceTree = "<group>"; };
-		1F0270E77CC100E968633EBA /* happy.c */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.c; name = "happy.c"; path = "../../../../Xcode-iOS/Demos/src/happy.c"; sourceTree = "<group>"; };
-		2C147BCA187412202A676460 /* AudioToolbox.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = "AudioToolbox.framework"; path = "System/Library/Frameworks/AudioToolbox.framework"; sourceTree = "SDKROOT"; };
-		5DDB080C0C872DF96CEE0B62 /* QuartzCore.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = "QuartzCore.framework"; path = "System/Library/Frameworks/QuartzCore.framework"; sourceTree = "SDKROOT"; };
-		3B210870772357A20E4576EE /* OpenGLES.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = "OpenGLES.framework"; path = "System/Library/Frameworks/OpenGLES.framework"; sourceTree = "SDKROOT"; };
-		603E37DB4001230953C943FD /* CoreGraphics.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = "CoreGraphics.framework"; path = "System/Library/Frameworks/CoreGraphics.framework"; sourceTree = "SDKROOT"; };
-		49C87CB0268927E071506CEA /* UIKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = "UIKit.framework"; path = "System/Library/Frameworks/UIKit.framework"; sourceTree = "SDKROOT"; };
-		489C1A076394164C7F853083 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = "Foundation.framework"; path = "System/Library/Frameworks/Foundation.framework"; sourceTree = "SDKROOT"; };
-		7AF1729947305D7E10DA777D /* CoreAudio.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = "CoreAudio.framework"; path = "System/Library/Frameworks/CoreAudio.framework"; sourceTree = "SDKROOT"; };
-		65F833BA06B514AD0EE36218 /* happy */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; name = "happy"; path = "happy"; sourceTree = BUILT_PRODUCTS_DIR; };
-		45B64B000539221732843506 /* SDL2.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = "SDL2.xcodeproj"; path = "../../SDL2/SDL2.xcodeproj"; sourceTree = SOURCE_ROOT; };
+		1F0270E77CC100E968633EBA /* happy.c */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.c; name = happy.c; path = "../../../../Xcode-iOS/Demos/src/happy.c"; sourceTree = "<group>"; };
+		2C147BCA187412202A676460 /* AudioToolbox.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = AudioToolbox.framework; path = System/Library/Frameworks/AudioToolbox.framework; sourceTree = SDKROOT; };
+		3B210870772357A20E4576EE /* OpenGLES.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = OpenGLES.framework; path = System/Library/Frameworks/OpenGLES.framework; sourceTree = SDKROOT; };
+		4346585005E47029491C60D0 /* common.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = common.h; path = "../../../../Xcode-iOS/Demos/src/common.h"; sourceTree = "<group>"; };
+		45B64B000539221732843506 /* SDL2.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = SDL2.xcodeproj; path = ../../SDL2/SDL2.xcodeproj; sourceTree = SOURCE_ROOT; };
+		489C1A076394164C7F853083 /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
+		49AD32CF351438B316C15B7A /* common.c */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.c; name = common.c; path = "../../../../Xcode-iOS/Demos/src/common.c"; sourceTree = "<group>"; };
+		49C87CB0268927E071506CEA /* UIKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = UIKit.framework; path = System/Library/Frameworks/UIKit.framework; sourceTree = SDKROOT; };
+		4E8504577F0B2DC43C2073B9 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; name = Info.plist; path = "../../../../Xcode-iOS/Demos/Info.plist"; sourceTree = "<group>"; };
+		5DDB080C0C872DF96CEE0B62 /* QuartzCore.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = QuartzCore.framework; path = System/Library/Frameworks/QuartzCore.framework; sourceTree = SDKROOT; };
+		603E37DB4001230953C943FD /* CoreGraphics.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreGraphics.framework; path = System/Library/Frameworks/CoreGraphics.framework; sourceTree = SDKROOT; };
+		65F833BA06B514AD0EE36218 /* happy.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = happy.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		67E105821F9D19C248BF17B6 /* icon.bmp */ = {isa = PBXFileReference; lastKnownFileType = image.bmp; name = icon.bmp; path = "../../../../Xcode-iOS/Demos/data/icon.bmp"; sourceTree = "<group>"; };
+		7AF1729947305D7E10DA777D /* CoreAudio.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = CoreAudio.framework; path = System/Library/Frameworks/CoreAudio.framework; sourceTree = SDKROOT; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -73,23 +73,30 @@
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
-		3555679049400DAA17916DD7 /* happy */ = {
+		1EEF027C57A725660BCF6FB9 /* data */ = {
 			isa = PBXGroup;
 			children = (
-				7CFE361B495F31F009A616F6 /* Xcode-iOS */,
-				532F72873A65662513E35533 /* Frameworks */,
-				343C7E606DE365001C7D0B84 /* Products */,
-				20D87CCB7D1E6AC128B72992 /* Projects */,
+				67E105821F9D19C248BF17B6 /* icon.bmp */,
 			);
-			name = "happy";
+			name = data;
 			sourceTree = "<group>";
 		};
-		7CFE361B495F31F009A616F6 /* Xcode-iOS */ = {
+		1F3D1DBD7857554A0C1C1965 /* src */ = {
 			isa = PBXGroup;
 			children = (
-				224D240956AC3D2636C95904 /* Demos */,
+				49AD32CF351438B316C15B7A /* common.c */,
+				4346585005E47029491C60D0 /* common.h */,
+				1F0270E77CC100E968633EBA /* happy.c */,
 			);
-			name = "Xcode-iOS";
+			name = src;
+			sourceTree = "<group>";
+		};
+		20D87CCB7D1E6AC128B72992 /* Projects */ = {
+			isa = PBXGroup;
+			children = (
+				45B64B000539221732843506 /* SDL2.xcodeproj */,
+			);
+			name = Projects;
 			sourceTree = "<group>";
 		};
 		224D240956AC3D2636C95904 /* Demos */ = {
@@ -99,25 +106,34 @@
 				1EEF027C57A725660BCF6FB9 /* data */,
 				1F3D1DBD7857554A0C1C1965 /* src */,
 			);
-			name = "Demos";
+			name = Demos;
 			sourceTree = "<group>";
 		};
-		1EEF027C57A725660BCF6FB9 /* data */ = {
+		343C7E606DE365001C7D0B84 /* Products */ = {
 			isa = PBXGroup;
 			children = (
-				67E105821F9D19C248BF17B6 /* icon.bmp */,
+				65F833BA06B514AD0EE36218 /* happy.app */,
 			);
-			name = "data";
+			name = Products;
 			sourceTree = "<group>";
 		};
-		1F3D1DBD7857554A0C1C1965 /* src */ = {
+		3555679049400DAA17916DD7 /* happy */ = {
 			isa = PBXGroup;
 			children = (
-				49AD32CF351438B316C15B7A /* common.c */,
-				4346585005E47029491C60D0 /* common.h */,
-				1F0270E77CC100E968633EBA /* happy.c */,
+				7CFE361B495F31F009A616F6 /* Xcode-iOS */,
+				532F72873A65662513E35533 /* Frameworks */,
+				343C7E606DE365001C7D0B84 /* Products */,
+				20D87CCB7D1E6AC128B72992 /* Projects */,
 			);
-			name = "src";
+			name = happy;
+			sourceTree = "<group>";
+		};
+		452A4F211058019E46671F0C /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				327333F1228F1B0D0A582BEC /* libSDL2.a */,
+			);
+			name = Products;
 			sourceTree = "<group>";
 		};
 		532F72873A65662513E35533 /* Frameworks */ = {
@@ -131,31 +147,15 @@
 				489C1A076394164C7F853083 /* Foundation.framework */,
 				7AF1729947305D7E10DA777D /* CoreAudio.framework */,
 			);
-			name = "Frameworks";
+			name = Frameworks;
 			sourceTree = "<group>";
 		};
-		343C7E606DE365001C7D0B84 /* Products */ = {
-			isa = PBXGroup;
-			children = (
-				65F833BA06B514AD0EE36218 /* happy */,
-			);
-			name = "Products";
-			sourceTree = "<group>";
-		};
-		20D87CCB7D1E6AC128B72992 /* Projects */ = {
-			isa = PBXGroup;
-			children = (
-				45B64B000539221732843506 /* SDL2.xcodeproj */,
-			);
-			name = "Projects";
-			sourceTree = "<group>";
-		};
-		452A4F211058019E46671F0C /* Products */ = {
+		7CFE361B495F31F009A616F6 /* Xcode-iOS */ = {
 			isa = PBXGroup;
 			children = (
-				327333F1228F1B0D0A582BEC /* libSDL2.a */,
+				224D240956AC3D2636C95904 /* Demos */,
 			);
-			name = Products;
+			name = "Xcode-iOS";
 			sourceTree = "<group>";
 		};
 /* End PBXGroup section */
@@ -174,10 +174,10 @@
 			dependencies = (
 				1F023F2F3EDE66E20BCC17E1 /* PBXTargetDependency */,
 			);
-			name = "happy";
+			name = happy;
 			productInstallPath = "$(HOME)/Applications";
-			productName = "happy";
-			productReference = 65F833BA06B514AD0EE36218 /* happy */;
+			productName = happy;
+			productReference = 65F833BA06B514AD0EE36218 /* happy.app */;
 			productType = "com.apple.product-type.application";
 		};
 /* End PBXNativeTarget section */
@@ -185,9 +185,15 @@
 /* Begin PBXProject section */
 		08FB7793FE84155DC02AAC07 /* Project object */ = {
 			isa = PBXProject;
+			attributes = {
+			};
 			buildConfigurationList = 1DEB928908733DD80010E9CD /* Build configuration list for PBXProject "happy" */;
 			compatibilityVersion = "Xcode 3.2";
+			developmentRegion = English;
 			hasScannedForEncodings = 1;
+			knownRegions = (
+				en,
+			);
 			mainGroup = 3555679049400DAA17916DD7 /* happy */;
 			projectDirPath = "";
 			projectReferences = (
@@ -207,7 +213,7 @@
 		327333F1228F1B0D0A582BEC /* libSDL2.a */ = {
 			isa = PBXReferenceProxy;
 			fileType = archive.ar;
-			path = "Build/Debug/libSDL2.a";
+			path = libSDL2.a;
 			remoteRef = 73DD36916E01179F50147B85 /* PBXContainerItemProxy */;
 			sourceTree = BUILT_PRODUCTS_DIR;
 		};
@@ -236,50 +242,19 @@
 		};
 /* End PBXSourcesBuildPhase section */
 
-/* Begin PBXVariantGroup section */
-/* End PBXVariantGroup section */
-
 /* Begin PBXTargetDependency section */
 		1F023F2F3EDE66E20BCC17E1 /* PBXTargetDependency */ = {
 			isa = PBXTargetDependency;
-			name = "libSDL2.a";
+			name = libSDL2.a;
 			targetProxy = 6D92213A249742C860667923 /* PBXContainerItemProxy */;
 		};
 /* End PBXTargetDependency section */
 
 /* Begin XCBuildConfiguration section */
-		563C339925F445BB2F1E01DB /* Debug */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ALWAYS_SEARCH_USER_PATHS = NO;
-				CONFIGURATION_BUILD_DIR = Build/Debug;
-				GCC_DYNAMIC_NO_PIC = NO;
-				GCC_MODEL_TUNING = G5;
-				INFOPLIST_FILE = "../../../../Xcode-iOS/Demos/Info.plist";
-				INSTALL_PATH = "$(HOME)/Applications";
-				PRODUCT_NAME = "happy";
-			};
-			name = "Debug";
-		};
-		205A208D2C4F2495443E582F /* Release */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ALWAYS_SEARCH_USER_PATHS = NO;
-				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
-				CONFIGURATION_BUILD_DIR = Build/Release;
-				GCC_DYNAMIC_NO_PIC = NO;
-				GCC_MODEL_TUNING = G5;
-				INFOPLIST_FILE = "../../../../Xcode-iOS/Demos/Info.plist";
-				INSTALL_PATH = "$(HOME)/Applications";
-				PRODUCT_NAME = "happy";
-			};
-			name = "Release";
-		};
 		115846ED1EDF44EA13E06D02 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ARCHS = "$(ARCHS_UNIVERSAL_IPHONE_OS)";
-				SDKROOT = iphoneos;
 				CODE_SIGN_IDENTITY = "iPhone Developer";
 				CONFIGURATION_BUILD_DIR = "$(SYMROOT)";
 				CONFIGURATION_TEMP_DIR = "$(OBJROOT)";
@@ -289,27 +264,41 @@
 				GCC_ENABLE_OBJC_EXCEPTIONS = NO;
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PREPROCESSOR_DEFINITIONS = (
-					"USING_PREMAKE_CONFIG_H",
-					"_DEBUG",
+					USING_PREMAKE_CONFIG_H,
+					_DEBUG,
 				);
 				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				HEADER_SEARCH_PATHS = (
-					"../..",
-					"../../../../include",
+					../..,
+					../../../../include,
 				);
-				OBJROOT = "obj/iOS/Debug";
+				OBJROOT = obj/iOS/Debug;
 				ONLY_ACTIVE_ARCH = YES;
-				SYMROOT = "Build/Debug";
+				SDKROOT = iphoneos;
+				SYMROOT = Build/Debug;
 			};
-			name = "Debug";
+			name = Debug;
+		};
+		205A208D2C4F2495443E582F /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CONFIGURATION_BUILD_DIR = Build/Release;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_MODEL_TUNING = G5;
+				INFOPLIST_FILE = "../../../../Xcode-iOS/Demos/Info.plist";
+				INSTALL_PATH = "$(HOME)/Applications";
+				PRODUCT_NAME = happy;
+			};
+			name = Release;
 		};
 		3536279D443370B3347E7CB6 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ARCHS = "$(ARCHS_UNIVERSAL_IPHONE_OS)";
-				SDKROOT = iphoneos;
 				CODE_SIGN_IDENTITY = "iPhone Developer";
 				CONFIGURATION_BUILD_DIR = "$(SYMROOT)";
 				CONFIGURATION_TEMP_DIR = "$(OBJROOT)";
@@ -318,45 +307,58 @@
 				GCC_ENABLE_OBJC_EXCEPTIONS = NO;
 				GCC_OPTIMIZATION_LEVEL = 3;
 				GCC_PREPROCESSOR_DEFINITIONS = (
-					"USING_PREMAKE_CONFIG_H",
-					"NDEBUG",
+					USING_PREMAKE_CONFIG_H,
+					NDEBUG,
 				);
 				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				HEADER_SEARCH_PATHS = (
-					"../..",
-					"../../../../include",
+					../..,
+					../../../../include,
 				);
-				OBJROOT = "obj/iOS/Release";
+				OBJROOT = obj/iOS/Release;
 				ONLY_ACTIVE_ARCH = NO;
-				SYMROOT = "Build/Release";
+				SDKROOT = iphoneos;
+				SYMROOT = Build/Release;
+			};
+			name = Release;
+		};
+		563C339925F445BB2F1E01DB /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CONFIGURATION_BUILD_DIR = Build/Debug;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_MODEL_TUNING = G5;
+				INFOPLIST_FILE = "../../../../Xcode-iOS/Demos/Info.plist";
+				INSTALL_PATH = "$(HOME)/Applications";
+				PRODUCT_NAME = happy;
 			};
-			name = "Release";
+			name = Debug;
 		};
 /* End XCBuildConfiguration section */
 
 /* Begin XCConfigurationList section */
-		233F10BA36C35A146C6A4B3E /* Build configuration list for PBXNativeTarget "happy" */ = {
+		1DEB928908733DD80010E9CD /* Build configuration list for PBXProject "happy" */ = {
 			isa = XCConfigurationList;
 			buildConfigurations = (
-				563C339925F445BB2F1E01DB /* Debug */,
-				205A208D2C4F2495443E582F /* Release */,
+				115846ED1EDF44EA13E06D02 /* Debug */,
+				3536279D443370B3347E7CB6 /* Release */,
 			);
 			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = "Debug";
+			defaultConfigurationName = Debug;
 		};
-		1DEB928908733DD80010E9CD /* Build configuration list for PBXProject "happy" */ = {
+		233F10BA36C35A146C6A4B3E /* Build configuration list for PBXNativeTarget "happy" */ = {
 			isa = XCConfigurationList;
 			buildConfigurations = (
-				115846ED1EDF44EA13E06D02 /* Debug */,
-				3536279D443370B3347E7CB6 /* Release */,
+				563C339925F445BB2F1E01DB /* Debug */,
+				205A208D2C4F2495443E582F /* Release */,
 			);
 			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = "Debug";
+			defaultConfigurationName = Debug;
 		};
 /* End XCConfigurationList section */
-
 	};
 	rootObject = 08FB7793FE84155DC02AAC07 /* Project object */;
 }

premake/projects/SDL2.lua

@@ -367,7 +367,7 @@ SDL_project "SDL2"
 		SDL_config
 		{
 			["SDL_AUDIO_DRIVER_COREAUDIO"] = 1,
-			["SDL_JOYSTICK_DISABLED"] = 0,
+			["SDL_JOYSTICK_MFI"] = 1,
 			["SDL_HAPTIC_DISABLED"] = 1,
 			["SDL_LOADSO_DISABLED"] = 1,
 			["SDL_THREAD_PTHREAD"] = 1,
@@ -404,5 +404,6 @@ SDL_project "SDL2"
 			"$(SDKROOT)/UIKit.framework",
 			"$(SDKROOT)/Foundation.framework",
 			"$(SDKROOT)/CoreAudio.framework",
-			"$(SDKROOT)/CoreMotion.framework"
+			"$(SDKROOT)/CoreMotion.framework",
+			"$(SDKROOT)/GameController.framework"
 		}

src/joystick/SDL_gamecontrollerdb.h

@@ -45,6 +45,10 @@ static const char *s_ControllerMappings [] =
     "25090500000000000000504944564944,PS3 DualShock,a:b2,b:b1,back:b9,dpdown:h0.8,dpleft:h0.4,dpright:h0.2,dpup:h0.1,guide:,leftshoulder:b6,leftstick:b10,lefttrigger:b4,leftx:a0,lefty:a1,rightshoulder:b7,rightstick:b11,righttrigger:b5,rightx:a2,righty:a3,start:b8,x:b0,y:b3,",
     "4c05c405000000000000504944564944,PS4 Controller,a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:b12,leftshoulder:b4,leftstick:b10,lefttrigger:a3,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:a4,rightx:a2,righty:a5,start:b9,x:b0,y:b3,",
 #endif
+#if SDL_JOYSTICK_MFI
+    "4d466947616d65706164010000000000,MFi Extended Gamepad,a:b0,b:b1,start:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:a5,rightx:a3,righty:a4,x:b2,y:b3,",
+    "4d466947616d65706164020000000000,MFi Gamepad,a:b0,b:b1,start:b6,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,rightshoulder:b5,x:b2,y:b3,",
+#endif
 #if defined(__MACOSX__)
     "0500000047532047616d657061640000,GameStop Gamepad,a:b0,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b2,y:b3,",
     "6d0400000000000016c2000000000000,Logitech F310 Gamepad (DInput),a:b1,b:b2,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,leftshoulder:b4,leftstick:b10,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b11,righttrigger:b7,rightx:a2,righty:a3,start:b9,x:b0,y:b3,", /* Guide button doesn't seem to be sent in DInput mode. */

src/joystick/SDL_joystick.c

@@ -669,14 +669,17 @@ SDL_JoystickUpdate(void)
             int i;
 
             /* Tell the app that everything is centered/unpressed...  */
-            for (i = 0; i < joystick->naxes; i++)
+            for (i = 0; i < joystick->naxes; i++) {
                 SDL_PrivateJoystickAxis(joystick, i, 0);
+            }
 
-            for (i = 0; i < joystick->nbuttons; i++)
+            for (i = 0; i < joystick->nbuttons; i++) {
                 SDL_PrivateJoystickButton(joystick, i, 0);
+            }
 
-            for (i = 0; i < joystick->nhats; i++)
+            for (i = 0; i < joystick->nhats; i++) {
                 SDL_PrivateJoystickHat(joystick, i, SDL_HAT_CENTERED);
+            }
 
             joystick->force_recentering = SDL_FALSE;
         }

src/joystick/iphoneos/SDL_sysjoystick.m

@@ -21,6 +21,10 @@
 #include "../../SDL_internal.h"
 
 /* This is the iOS implementation of the SDL joystick API */
+#include "SDL_sysjoystick_c.h"
+
+/* needed for SDL_IPHONE_MAX_GFORCE macro */
+#include "SDL_config_iphoneos.h"
 
 #include "SDL_joystick.h"
 #include "SDL_hints.h"
@@ -28,15 +32,221 @@
 #include "../SDL_sysjoystick.h"
 #include "../SDL_joystick_c.h"
 
+#if !SDL_EVENTS_DISABLED
+#include "../../events/SDL_events_c.h"
+#endif
+
 #import <CoreMotion/CoreMotion.h>
 
-/* needed for SDL_IPHONE_MAX_GFORCE macro */
-#import "SDL_config_iphoneos.h"
+#ifdef SDL_JOYSTICK_MFI
+#import <GameController/GameController.h>
 
-const char *accelerometerName = "iOS Accelerometer";
+static id connectObserver = nil;
+static id disconnectObserver = nil;
+#endif /* SDL_JOYSTICK_MFI */
 
+static const char *accelerometerName = "iOS Accelerometer";
 static CMMotionManager *motionManager = nil;
+
+static SDL_JoystickDeviceItem *deviceList = NULL;
+
 static int numjoysticks = 0;
+static SDL_JoystickID instancecounter = 0;
+
+static SDL_JoystickDeviceItem *
+GetDeviceForIndex(int device_index)
+{
+    SDL_JoystickDeviceItem *device = deviceList;
+    int i = 0;
+
+    while (i < device_index) {
+        if (device == NULL) {
+            return NULL;
+        }
+        device = device->next;
+        i++;
+    }
+
+    return device;
+}
+
+static void
+SDL_SYS_AddMFIJoystickDevice(SDL_JoystickDeviceItem *device, GCController *controller)
+{
+#ifdef SDL_JOYSTICK_MFI
+    const char *name = NULL;
+    /* Explicitly retain the controller because SDL_JoystickDeviceItem is a
+     * struct, and ARC doesn't work with structs. */
+    device->controller = (__bridge GCController *) CFBridgingRetain(controller);
+
+    if (controller.vendorName) {
+        name = controller.vendorName.UTF8String;
+    }
+
+    if (!name) {
+        name = "MFi Gamepad";
+    }
+
+    device->name = SDL_strdup(name);
+
+    device->guid.data[0] = 'M';
+    device->guid.data[1] = 'F';
+    device->guid.data[2] = 'i';
+    device->guid.data[3] = 'G';
+    device->guid.data[4] = 'a';
+    device->guid.data[5] = 'm';
+    device->guid.data[6] = 'e';
+    device->guid.data[7] = 'p';
+    device->guid.data[8] = 'a';
+    device->guid.data[9] = 'd';
+
+    if (controller.extendedGamepad) {
+        device->guid.data[10] = 1;
+    } else if (controller.gamepad) {
+        device->guid.data[10] = 2;
+    }
+
+    if (controller.extendedGamepad) {
+        device->naxes = 6; /* 2 thumbsticks and 2 triggers */
+        device->nhats = 1; /* d-pad */
+        device->nbuttons = 7; /* ABXY, shoulder buttons, pause button */
+    } else if (controller.gamepad) {
+        device->naxes = 0; /* no traditional analog inputs */
+        device->nhats = 1; /* d-pad */
+        device->nbuttons = 7; /* ABXY, shoulder buttons, pause button */
+    }
+    /* TODO: Handle micro profiles on tvOS. */
+#endif
+}
+
+static void
+SDL_SYS_AddJoystickDevice(GCController *controller, SDL_bool accelerometer)
+{
+    SDL_JoystickDeviceItem *device = deviceList;
+#if !SDL_EVENTS_DISABLED
+    SDL_Event event;
+#endif
+
+    while (device != NULL) {
+        if (device->controller == controller) {
+            return;
+        }
+        device = device->next;
+    }
+
+    device = (SDL_JoystickDeviceItem *) SDL_malloc(sizeof(SDL_JoystickDeviceItem));
+    if (device == NULL) {
+        return;
+    }
+
+    SDL_zerop(device);
+
+    device->accelerometer = accelerometer;
+    device->instance_id = instancecounter++;
+
+    if (accelerometer) {
+        device->name = SDL_strdup(accelerometerName);
+        device->naxes = 3; /* Device acceleration in the x, y, and z axes. */
+        device->nhats = 0;
+        device->nbuttons = 0;
+
+        /* Use the accelerometer name as a GUID. */
+        SDL_memcpy(&device->guid.data, device->name, SDL_min(sizeof(SDL_JoystickGUID), SDL_strlen(device->name)));
+    } else if (controller) {
+        SDL_SYS_AddMFIJoystickDevice(device, controller);
+    }
+
+    if (deviceList == NULL) {
+        deviceList = device;
+    } else {
+        SDL_JoystickDeviceItem *lastdevice = deviceList;
+        while (lastdevice->next != NULL) {
+            lastdevice = lastdevice->next;
+        }
+        lastdevice->next = device;
+    }
+
+    ++numjoysticks;
+
+#if !SDL_EVENTS_DISABLED
+    event.type = SDL_JOYDEVICEADDED;
+
+    if (SDL_GetEventState(event.type) == SDL_ENABLE) {
+        event.jdevice.which = numjoysticks - 1;
+        if ((SDL_EventOK == NULL) ||
+            (*SDL_EventOK)(SDL_EventOKParam, &event)) {
+            SDL_PushEvent(&event);
+        }
+    }
+#endif /* !SDL_EVENTS_DISABLED */
+}
+
+SDL_JoystickDeviceItem *
+SDL_SYS_RemoveJoystickDevice(SDL_JoystickDeviceItem *device)
+{
+    SDL_JoystickDeviceItem *prev = NULL;
+    SDL_JoystickDeviceItem *next = NULL;
+    SDL_JoystickDeviceItem *item = deviceList;
+#if !SDL_EVENTS_DISABLED
+    SDL_Event event;
+#endif
+
+    if (device == NULL) {
+        return NULL;
+    }
+
+    next = device->next;
+
+    while (item != NULL) {
+        if (item == device) {
+            break;
+        }
+        prev = item;
+        item = item->next;
+    }
+
+    /* Unlink the device item from the device list. */
+    if (prev) {
+        prev->next = device->next;
+    } else if (device == deviceList) {
+        deviceList = device->next;
+    }
+
+    if (device->joystick) {
+        device->joystick->hwdata = NULL;
+    }
+
+#ifdef SDL_JOYSTICK_MFI
+    @autoreleasepool {
+        if (device->controller) {
+            /* The controller was explicitly retained in the struct, so it
+             * should be explicitly released before freeing the struct. */
+            GCController *controller = CFBridgingRelease((__bridge CFTypeRef)(device->controller));
+            controller.controllerPausedHandler = nil;
+            device->controller = nil;
+        }
+    }
+#endif /* SDL_JOYSTICK_MFI */
+
+    SDL_free(device->name);
+    SDL_free(device);
+
+    --numjoysticks;
+
+#if !SDL_EVENTS_DISABLED
+    event.type = SDL_JOYDEVICEREMOVED;
+
+    if (SDL_GetEventState(event.type) == SDL_ENABLE) {
+        event.jdevice.which = device->instance_id;
+        if ((SDL_EventOK == NULL) ||
+            (*SDL_EventOK)(SDL_EventOKParam, &event)) {
+            SDL_PushEvent(&event);
+        }
+    }
+#endif /* !SDL_EVENTS_DISABLED */
+
+    return next;
+}
 
 /* Function to scan the system for joysticks.
  * Joystick 0 should be the system default joystick.
@@ -45,10 +255,48 @@ static int numjoysticks = 0;
 int
 SDL_SYS_JoystickInit(void)
 {
-    const char *hint = SDL_GetHint(SDL_HINT_ACCELEROMETER_AS_JOYSTICK);
-    if (!hint || SDL_atoi(hint)) {
-        /* Default behavior, accelerometer as joystick */
-        numjoysticks = 1;
+    @autoreleasepool {
+        NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
+        const char *hint = SDL_GetHint(SDL_HINT_ACCELEROMETER_AS_JOYSTICK);
+
+        if (!hint || SDL_atoi(hint)) {
+            /* Default behavior, accelerometer as joystick */
+            SDL_SYS_AddJoystickDevice(nil, SDL_TRUE);
+        }
+
+#ifdef SDL_JOYSTICK_MFI
+        /* GameController.framework was added in iOS 7. */
+        if (![GCController class]) {
+            return numjoysticks;
+        }
+
+        for (GCController *controller in [GCController controllers]) {
+            SDL_SYS_AddJoystickDevice(controller, SDL_FALSE);
+        }
+
+        connectObserver = [center addObserverForName:GCControllerDidConnectNotification
+                                              object:nil
+                                               queue:nil
+                                          usingBlock:^(NSNotification *note) {
+                                              GCController *controller = note.object;
+                                              SDL_SYS_AddJoystickDevice(controller, SDL_FALSE);
+                                          }];
+
+        disconnectObserver = [center addObserverForName:GCControllerDidDisconnectNotification
+                                                 object:nil
+                                                  queue:nil
+                                             usingBlock:^(NSNotification *note) {
+                                                 GCController *controller = note.object;
+                                                 SDL_JoystickDeviceItem *device = deviceList;
+                                                 while (device != NULL) {
+                                                     if (device->controller == controller) {
+                                                         SDL_SYS_RemoveJoystickDevice(device);
+                                                         break;
+                                                     }
+                                                     device = device->next;
+                                                 }
+                                             }];
+#endif /* SDL_JOYSTICK_MFI */
     }
 
     return numjoysticks;
@@ -67,13 +315,15 @@ void SDL_SYS_JoystickDetect()
 const char *
 SDL_SYS_JoystickNameForDeviceIndex(int device_index)
 {
-    return accelerometerName;
+    SDL_JoystickDeviceItem *device = GetDeviceForIndex(device_index);
+    return device ? device->name : "Unknown";
 }
 
 /* Function to perform the mapping from device index to the instance id for this index */
 SDL_JoystickID SDL_SYS_GetInstanceIdOfDeviceIndex(int device_index)
 {
-    return device_index;
+    SDL_JoystickDeviceItem *device = GetDeviceForIndex(device_index);
+    return device ? device->instance_id : 0;
 }
 
 /* Function to open a joystick for use.
@@ -84,19 +334,40 @@ SDL_JoystickID SDL_SYS_GetInstanceIdOfDeviceIndex(int device_index)
 int
 SDL_SYS_JoystickOpen(SDL_Joystick * joystick, int device_index)
 {
-    joystick->naxes = 3;
-    joystick->nhats = 0;
+    SDL_JoystickDeviceItem *device = GetDeviceForIndex(device_index);
+    if (device == NULL) {
+        return SDL_SetError("Could not open Joystick: no hardware device for the specified index");
+    }
+
+    joystick->hwdata = device;
+    joystick->instance_id = device->instance_id;
+
+    joystick->naxes = device->naxes;
+    joystick->nhats = device->nhats;
+    joystick->nbuttons = device->nbuttons;
     joystick->nballs = 0;
-    joystick->nbuttons = 0;
+
+    device->joystick = joystick;
 
     @autoreleasepool {
-        if (motionManager == nil) {
-            motionManager = [[CMMotionManager alloc] init];
+        if (device->accelerometer) {
+            if (motionManager == nil) {
+                motionManager = [[CMMotionManager alloc] init];
+            }
+
+            /* Shorter times between updates can significantly increase CPU usage. */
+            motionManager.accelerometerUpdateInterval = 0.1;
+            [motionManager startAccelerometerUpdates];
+        } else {
+#ifdef SDL_JOYSTICK_MFI
+            GCController *controller = device->controller;
+            controller.controllerPausedHandler = ^(GCController *controller) {
+                if (joystick->hwdata) {
+                    ++joystick->hwdata->num_pause_presses;
+                }
+            };
+#endif /* SDL_JOYSTICK_MFI */
         }
-
-        /* Shorter times between updates can significantly increase CPU usage. */
-        motionManager.accelerometerUpdateInterval = 0.1;
-        [motionManager startAccelerometerUpdates];
     }
 
     return 0;
@@ -105,7 +376,7 @@ SDL_SYS_JoystickOpen(SDL_Joystick * joystick, int device_index)
 /* Function to determine if this joystick is attached to the system right now */
 SDL_bool SDL_SYS_JoystickAttached(SDL_Joystick *joystick)
 {
-    return SDL_TRUE;
+    return joystick->hwdata != NULL;
 }
 
 static void SDL_SYS_AccelerometerUpdate(SDL_Joystick * joystick)
@@ -115,7 +386,7 @@ static void SDL_SYS_AccelerometerUpdate(SDL_Joystick * joystick)
     CMAcceleration accel;
 
     @autoreleasepool {
-        if (!motionManager.accelerometerActive) {
+        if (!motionManager.isAccelerometerActive) {
             return;
         }
 
@@ -144,9 +415,94 @@ static void SDL_SYS_AccelerometerUpdate(SDL_Joystick * joystick)
     accel.z = SDL_min(SDL_max(accel.z, -maxgforce), maxgforce);
 
     /* pass in data mapped to range of SInt16 */
-    SDL_PrivateJoystickAxis(joystick, 0, (accel.x / maxgforce) * maxsint16);
+    SDL_PrivateJoystickAxis(joystick, 0,  (accel.x / maxgforce) * maxsint16);
     SDL_PrivateJoystickAxis(joystick, 1, -(accel.y / maxgforce) * maxsint16);
-    SDL_PrivateJoystickAxis(joystick, 2, (accel.z / maxgforce) * maxsint16);
+    SDL_PrivateJoystickAxis(joystick, 2,  (accel.z / maxgforce) * maxsint16);
+}
+
+#ifdef SDL_JOYSTICK_MFI
+static Uint8
+SDL_SYS_MFIJoystickHatStateForDPad(GCControllerDirectionPad *dpad)
+{
+    Uint8 hat = 0;
+
+    if (dpad.up.isPressed) {
+        hat |= SDL_HAT_UP;
+    } else if (dpad.down.isPressed) {
+        hat |= SDL_HAT_DOWN;
+    }
+
+    if (dpad.left.isPressed) {
+        hat |= SDL_HAT_LEFT;
+    } else if (dpad.right.isPressed) {
+        hat |= SDL_HAT_RIGHT;
+    }
+
+    if (hat == 0) {
+        return SDL_HAT_CENTERED;
+    }
+
+    return hat;
+}
+#endif
+
+static void
+SDL_SYS_MFIJoystickUpdate(SDL_Joystick * joystick)
+{
+#ifdef SDL_JOYSTICK_MFI
+    @autoreleasepool {
+        GCController *controller = joystick->hwdata->controller;
+        Uint8 hatstate = SDL_HAT_CENTERED;
+        int i;
+
+        if (controller.extendedGamepad) {
+            GCExtendedGamepad *gamepad = controller.extendedGamepad;
+
+            /* Axis order matches the XInput Windows mappings. */
+            SDL_PrivateJoystickAxis(joystick, 0, (Sint16) (gamepad.leftThumbstick.xAxis.value * 32767));
+            SDL_PrivateJoystickAxis(joystick, 1, (Sint16) (gamepad.leftThumbstick.yAxis.value * 32767));
+            SDL_PrivateJoystickAxis(joystick, 2, (Sint16) (gamepad.leftTrigger.value * 32767));
+            SDL_PrivateJoystickAxis(joystick, 3, (Sint16) (gamepad.rightThumbstick.xAxis.value * 32767));
+            SDL_PrivateJoystickAxis(joystick, 4, (Sint16) (gamepad.rightThumbstick.yAxis.value * 32767));
+            SDL_PrivateJoystickAxis(joystick, 5, (Sint16) (gamepad.rightTrigger.value * 32767));
+
+            hatstate = SDL_SYS_MFIJoystickHatStateForDPad(gamepad.dpad);
+
+            /* Button order matches the XInput Windows mappings. */
+            SDL_PrivateJoystickButton(joystick, 0, gamepad.buttonA.isPressed);
+            SDL_PrivateJoystickButton(joystick, 1, gamepad.buttonB.isPressed);
+            SDL_PrivateJoystickButton(joystick, 2, gamepad.buttonX.isPressed);
+            SDL_PrivateJoystickButton(joystick, 3, gamepad.buttonY.isPressed);
+            SDL_PrivateJoystickButton(joystick, 4, gamepad.leftShoulder.isPressed);
+            SDL_PrivateJoystickButton(joystick, 5, gamepad.rightShoulder.isPressed);
+        } else if (controller.gamepad) {
+            GCGamepad *gamepad = controller.gamepad;
+
+            hatstate = SDL_SYS_MFIJoystickHatStateForDPad(gamepad.dpad);
+
+            /* Button order matches the XInput Windows mappings. */
+            SDL_PrivateJoystickButton(joystick, 0, gamepad.buttonA.isPressed);
+            SDL_PrivateJoystickButton(joystick, 1, gamepad.buttonB.isPressed);
+            SDL_PrivateJoystickButton(joystick, 2, gamepad.buttonX.isPressed);
+            SDL_PrivateJoystickButton(joystick, 3, gamepad.buttonY.isPressed);
+            SDL_PrivateJoystickButton(joystick, 4, gamepad.leftShoulder.isPressed);
+            SDL_PrivateJoystickButton(joystick, 5, gamepad.rightShoulder.isPressed);
+        }
+        /* TODO: Handle micro profiles on tvOS. */
+
+        SDL_PrivateJoystickHat(joystick, 0, hatstate);
+
+        for (i = 0; i < joystick->hwdata->num_pause_presses; i++) {
+            /* The pause button is always last. */
+            Uint8 pausebutton = joystick->nbuttons - 1;
+
+            SDL_PrivateJoystickButton(joystick, pausebutton, 1);
+            SDL_PrivateJoystickButton(joystick, pausebutton, 0);
+        }
+
+        joystick->hwdata->num_pause_presses = 0;
+    }
+#endif
 }
 
 /* Function to update the state of a joystick - called as a device poll.
@@ -157,15 +513,40 @@ static void SDL_SYS_AccelerometerUpdate(SDL_Joystick * joystick)
 void
 SDL_SYS_JoystickUpdate(SDL_Joystick * joystick)
 {
-    SDL_SYS_AccelerometerUpdate(joystick);
+    SDL_JoystickDeviceItem *device = joystick->hwdata;
+
+    if (device == NULL) {
+        return;
+    }
+
+    if (device->accelerometer) {
+        SDL_SYS_AccelerometerUpdate(joystick);
+    } else if (device->controller) {
+        SDL_SYS_MFIJoystickUpdate(joystick);
+    }
 }
 
 /* Function to close a joystick after use */
 void
 SDL_SYS_JoystickClose(SDL_Joystick * joystick)
 {
+    SDL_JoystickDeviceItem *device = joystick->hwdata;
+
+    if (device == NULL) {
+        return;
+    }
+
+    device->joystick = NULL;
+
     @autoreleasepool {
-        [motionManager stopAccelerometerUpdates];
+        if (device->accelerometer) {
+            [motionManager stopAccelerometerUpdates];
+        } else if (device->controller) {
+#ifdef SDL_JOYSTICK_MFI
+            GCController *controller = device->controller;
+            controller.controllerPausedHandler = nil;
+#endif
+        }
     }
 }
 
@@ -174,6 +555,24 @@ void
 SDL_SYS_JoystickQuit(void)
 {
     @autoreleasepool {
+#ifdef SDL_JOYSTICK_MFI
+        NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
+
+        if (connectObserver) {
+            [center removeObserver:connectObserver name:GCControllerDidConnectNotification object:nil];
+            connectObserver = nil;
+        }
+
+        if (disconnectObserver) {
+            [center removeObserver:disconnectObserver name:GCControllerDidDisconnectNotification object:nil];
+            disconnectObserver = nil;
+        }
+#endif /* SDL_JOYSTICK_MFI */
+
+        while (deviceList != NULL) {
+            SDL_SYS_RemoveJoystickDevice(deviceList);
+        }
+
         motionManager = nil;
     }
 
@@ -182,21 +581,24 @@ SDL_SYS_JoystickQuit(void)
 
 SDL_JoystickGUID SDL_SYS_JoystickGetDeviceGUID( int device_index )
 {
+    SDL_JoystickDeviceItem *device = GetDeviceForIndex(device_index);
     SDL_JoystickGUID guid;
-    /* the GUID is just the first 16 chars of the name for now */
-    const char *name = SDL_SYS_JoystickNameForDeviceIndex( device_index );
-    SDL_zero( guid );
-    SDL_memcpy( &guid, name, SDL_min( sizeof(guid), SDL_strlen( name ) ) );
+    if (device) {
+        guid = device->guid;
+    } else {
+        SDL_zero(guid);
+    }
     return guid;
 }
 
 SDL_JoystickGUID SDL_SYS_JoystickGetGUID(SDL_Joystick * joystick)
 {
     SDL_JoystickGUID guid;
-    /* the GUID is just the first 16 chars of the name for now */
-    const char *name = joystick->name;
-    SDL_zero( guid );
-    SDL_memcpy( &guid, name, SDL_min( sizeof(guid), SDL_strlen( name ) ) );
+    if (joystick->hwdata) {
+        guid = joystick->hwdata->guid;
+    } else {
+        SDL_zero(guid);
+    }
     return guid;
 }
 

src/joystick/iphoneos/SDL_sysjoystick_c.h

@@ -0,0 +1,55 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2015 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "../../SDL_internal.h"
+
+#ifndef SDL_JOYSTICK_IOS_H
+#define SDL_JOYSTICK_IOS_H
+
+#include "SDL_stdinc.h"
+#include "../SDL_sysjoystick.h"
+
+@class GCController;
+
+typedef struct joystick_hwdata
+{
+    SDL_bool accelerometer;
+
+    GCController __unsafe_unretained *controller;
+    int num_pause_presses;
+
+    char *name;
+    SDL_Joystick *joystick;
+    SDL_JoystickID instance_id;
+    SDL_JoystickGUID guid;
+
+    int naxes;
+    int nbuttons;
+    int nhats;
+
+    struct joystick_hwdata *next;
+} joystick_hwdata;
+
+typedef joystick_hwdata SDL_JoystickDeviceItem;
+
+#endif /* SDL_JOYSTICK_IOS_H */
+
+
+/* vi: set ts=4 sw=4 expandtab: */

test/testgamecontroller.c

@@ -25,8 +25,8 @@
 #ifndef SDL_JOYSTICK_DISABLED
 
 #ifdef __IPHONEOS__
-#define SCREEN_WIDTH    320
-#define SCREEN_HEIGHT    480
+#define SCREEN_WIDTH    480
+#define SCREEN_HEIGHT    320
 #else
 #define SCREEN_WIDTH    512
 #define SCREEN_HEIGHT   317

test/testjoystick.c

@@ -243,6 +243,8 @@ main(int argc, char *argv[])
     int i;
     SDL_Joystick *joystick;
 
+    SDL_SetHint(SDL_HINT_ACCELEROMETER_AS_JOYSTICK, "0");
+
     /* Enable standard application logging */
     SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);	
 
@@ -275,7 +277,7 @@ main(int argc, char *argv[])
         }
     }
 
-#ifdef __ANDROID__
+#if defined(__ANDROID__) || defined(__IPHONEOS__)
     if (SDL_NumJoysticks() > 0) {
 #else
     if (argv[1]) {
@@ -284,7 +286,7 @@ main(int argc, char *argv[])
         SDL_bool keepGoing = SDL_TRUE;
         SDL_Event event;
         int device;
-#ifdef __ANDROID__
+#if defined(__ANDROID__) || defined(__IPHONEOS__)
         device = 0;
 #else
         device = atoi(argv[1]);