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Diffstat (limited to 'Samples/CommonSrc/Platform/OSX_Gamepad.cpp')
| -rw-r--r-- | Samples/CommonSrc/Platform/OSX_Gamepad.cpp | 430 |
1 files changed, 430 insertions, 0 deletions
diff --git a/Samples/CommonSrc/Platform/OSX_Gamepad.cpp b/Samples/CommonSrc/Platform/OSX_Gamepad.cpp new file mode 100644 index 0000000..36f8109 --- /dev/null +++ b/Samples/CommonSrc/Platform/OSX_Gamepad.cpp @@ -0,0 +1,430 @@ +/************************************************************************************ + +Filename : OSX_Gamepad.cpp +Content : OSX implementation of Gamepad functionality. +Created : May 6, 2013 +Authors : Lee Cooper + +Copyright : Copyright 2012 Oculus VR, Inc. All Rights reserved. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + +http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. + +************************************************************************************/ + +#include "OSX_Gamepad.h" + + +static const UInt32 Logitech_F710_VendorID = 0x046D; +//static const UInt32 Logitech_F710_ProductID = 0xC219; + +static const UInt32 Sony_DualShock3_VendorID = 0x054C; +//static const UInt32 Sony_DualShock3_ProductID = 0x0268; + + +namespace OVR { namespace Platform { namespace OSX { + + +GamepadManager::GamepadManager() + : bStateChanged(false) +{ + + HidManager = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone); + IOHIDManagerOpen(HidManager, kIOHIDOptionsTypeNone); + IOHIDManagerScheduleWithRunLoop(HidManager, + CFRunLoopGetCurrent(), + kCFRunLoopDefaultMode); + + + // Setup device matching. + CFStringRef keys[] = { CFSTR(kIOHIDDeviceUsagePageKey), + CFSTR(kIOHIDDeviceUsageKey)}; + + int value; + CFNumberRef values[2]; + CFDictionaryRef dictionaries[2]; + + // Match joysticks. + value = kHIDPage_GenericDesktop; + values[0] = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &value); + + value = kHIDUsage_GD_Joystick; + values[1] = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &value); + + dictionaries[0] = CFDictionaryCreate(kCFAllocatorDefault, + (const void **) keys, + (const void **) values, + 2, + &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); + CFRelease(values[0]); + CFRelease(values[1]); + + // Match gamepads. + value = kHIDPage_GenericDesktop; + values[0] = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &value); + + value = kHIDUsage_GD_GamePad; + values[1] = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &value); + + dictionaries[1] = CFDictionaryCreate(kCFAllocatorDefault, + (const void **) keys, + (const void **) values, + 2, + &kCFTypeDictionaryKeyCallBacks, + &kCFTypeDictionaryValueCallBacks); + CFRelease(values[0]); + CFRelease(values[1]); + + CFArrayRef array = CFArrayCreate( kCFAllocatorDefault, + (const void **) dictionaries, + 2, + &kCFTypeArrayCallBacks); + CFRelease(dictionaries[0]); + CFRelease(dictionaries[1]); + + IOHIDManagerSetDeviceMatchingMultiple(HidManager, array); + + CFRelease(array); + + + IOHIDManagerRegisterDeviceMatchingCallback(HidManager, staticOnDeviceMatched, this); + IOHIDManagerRegisterDeviceRemovalCallback(HidManager, staticOnDeviceRemoved, this); + +} + +GamepadManager::~GamepadManager() +{ + CFRelease(HidManager); +} + +UInt32 GamepadManager::GetGamepadCount() +{ + return 1; +} + +bool GamepadManager::GetGamepadState(UInt32 index, GamepadState* pState) +{ + // For now we just support one gamepad. + OVR_UNUSED(index); + + if (!bStateChanged) + { + return false; + } + + bStateChanged = false; +// State.Debug(); + + *pState = State; + return true; +} + +int GamepadManager::getIntDeviceProperty(IOHIDDeviceRef device, CFStringRef key) +{ + CFTypeRef type = IOHIDDeviceGetProperty(device, key); + OVR_ASSERT(type != NULL && CFGetTypeID(type) == CFNumberGetTypeID()); + + int value; + CFNumberGetValue((CFNumberRef) type, kCFNumberSInt32Type, &value); + + return value; +} + +void GamepadManager::staticOnDeviceMatched(void* context, IOReturn result, void* sender, IOHIDDeviceRef device) +{ + OVR_UNUSED(result); + OVR_UNUSED(sender); + GamepadManager* pManager = (GamepadManager*) context; + pManager->onDeviceMatched(device); +} + +void GamepadManager::onDeviceMatched(IOHIDDeviceRef device) +{ + IOHIDDeviceRegisterInputValueCallback(device, staticOnDeviceValueChanged, this); +} + +void GamepadManager::staticOnDeviceRemoved(void* context, IOReturn result, void* sender, IOHIDDeviceRef device) +{ + OVR_UNUSED(result); + OVR_UNUSED(sender); + GamepadManager* pManager = (GamepadManager*) context; + pManager->onDeviceRemoved(device); +} + +void GamepadManager::onDeviceRemoved(IOHIDDeviceRef device) +{ + IOHIDDeviceRegisterInputValueCallback(device, NULL, NULL); +} + +void GamepadManager::staticOnDeviceValueChanged(void* context, IOReturn result, void* sender, IOHIDValueRef value) +{ + OVR_UNUSED(result); + OVR_UNUSED(sender); + GamepadManager* pManager = (GamepadManager*) context; + pManager->onDeviceValueChanged(value); +} + +float GamepadManager::mapAnalogAxis(IOHIDValueRef value, IOHIDElementRef element) +{ + + CFIndex val = IOHIDValueGetIntegerValue(value); + CFIndex min = IOHIDElementGetLogicalMin(element); + CFIndex max = IOHIDElementGetLogicalMax(element); + + float v = (float) (val - min) / (float) (max - min); + v = v * 2.0f - 1.0f; + + // Dead zone. + if (v < 0.1f && v > -0.1f) + { + v = 0.0f; + } + + return v; +} + +bool GamepadManager::setStateIfDifferent(float& state, float newState) +{ + if (state == newState) + return false; + + state = newState; + + return true; +} + +void GamepadManager::onDeviceValueChanged(IOHIDValueRef value) +{ + + IOHIDElementRef element = IOHIDValueGetElement(value); + IOHIDDeviceRef device = IOHIDElementGetDevice(element); + + unsigned int vendorID = (unsigned int)getIntDeviceProperty(device, CFSTR(kIOHIDVendorIDKey)); + unsigned int productID = (unsigned int)getIntDeviceProperty(device, CFSTR(kIOHIDProductIDKey)); + OVR_UNUSED(productID); + + uint32_t usagePage = IOHIDElementGetUsagePage(element); + uint32_t usage = IOHIDElementGetUsage(element); + + // The following controller mapping is based on the Logitech F710, however we use it for + // all Logitech devices on the assumption that they're likely to share the same mapping. + if (vendorID == Logitech_F710_VendorID) + { + // Logitech F710 mapping. + if (usagePage == kHIDPage_Button) + { + bool buttonState = IOHIDValueGetIntegerValue(value); + + switch(usage) + { + case kHIDUsage_Button_1: + manipulateBitField(State.Buttons, Gamepad_X, buttonState); + break; + case kHIDUsage_Button_2: + manipulateBitField(State.Buttons, Gamepad_A, buttonState); + break; + case kHIDUsage_Button_3: + manipulateBitField(State.Buttons, Gamepad_B, buttonState); + break; + case kHIDUsage_Button_4: + manipulateBitField(State.Buttons, Gamepad_Y, buttonState); + break; + case 0x05: + manipulateBitField(State.Buttons, Gamepad_L1, buttonState); + break; + case 0x06: + manipulateBitField(State.Buttons, Gamepad_R1, buttonState); + break; + case 0x07: + State.LT = buttonState ? 1.0f:0.0f; + break; + case 0x08: + State.RT = buttonState ? 1.0f:0.0f; + break; + case 0x09: + manipulateBitField(State.Buttons, Gamepad_Back, buttonState); + break; + case 0x0A: + manipulateBitField(State.Buttons, Gamepad_Start, buttonState); + break; + case 0x0B: + manipulateBitField(State.Buttons, Gamepad_LStick, buttonState); + break; + case 0x0C: + manipulateBitField(State.Buttons, Gamepad_RStick, buttonState); + break; + default: + return; + } + } + else if (usagePage == kHIDPage_GenericDesktop) + { + float v; + switch(usage) + { + case kHIDUsage_GD_X: + v = mapAnalogAxis(value, element); + if (!setStateIfDifferent(State.LX, v)) + return; + break; + case kHIDUsage_GD_Y: + v = mapAnalogAxis(value, element); + if (!setStateIfDifferent(State.LY, -v)) + return; + break; + case kHIDUsage_GD_Z: + v = mapAnalogAxis(value, element); + if (!setStateIfDifferent(State.RX, v)) + return; + break; + case kHIDUsage_GD_Rz: + v = mapAnalogAxis(value, element); + if (!setStateIfDifferent(State.RY, -v)) + return; + break; + case kHIDUsage_GD_Hatswitch: + { + CFIndex integerValue = IOHIDValueGetIntegerValue(value); + + manipulateBitField(State.Buttons, + Gamepad_Up, + integerValue == 7 || integerValue == 0 || integerValue == 1); + manipulateBitField(State.Buttons, + Gamepad_Down, + integerValue == 3 || integerValue == 4 || integerValue == 5); + manipulateBitField(State.Buttons, + Gamepad_Left, + integerValue == 5 || integerValue == 6 || integerValue == 7); + manipulateBitField(State.Buttons, + Gamepad_Right, + integerValue == 1 || integerValue == 2 || integerValue == 3); + } + break; + default: + return; + } + } + } + // The following controller mapping is based on the Sony DualShock3, however we use it for + // all Sony devices on the assumption that they're likely to share the same mapping. + else if (vendorID == Sony_DualShock3_VendorID) + { + // PS3 Controller. + if (usagePage == kHIDPage_Button) + { + bool buttonState = IOHIDValueGetIntegerValue(value); + + switch(usage) + { + case kHIDUsage_Button_1: + manipulateBitField(State.Buttons, Gamepad_Back, buttonState); + break; + case kHIDUsage_Button_2: + manipulateBitField(State.Buttons, Gamepad_LStick, buttonState); + break; + case kHIDUsage_Button_3: + manipulateBitField(State.Buttons, Gamepad_RStick, buttonState); + break; + case kHIDUsage_Button_4: + manipulateBitField(State.Buttons, Gamepad_Start, buttonState); + break; + case 0x05: + manipulateBitField(State.Buttons, Gamepad_Up, buttonState); + break; + case 0x06: + manipulateBitField(State.Buttons, Gamepad_Right, buttonState); + break; + case 0x07: + manipulateBitField(State.Buttons, Gamepad_Down, buttonState); + break; + case 0x08: + manipulateBitField(State.Buttons, Gamepad_Left, buttonState); + break; + case 0x09: + State.LT = buttonState ? 1.0f:0.0f; + break; + case 0x0A: + State.RT = buttonState ? 1.0f:0.0f; + break; + case 0x0B: + manipulateBitField(State.Buttons, Gamepad_L1, buttonState); + break; + case 0x0C: + manipulateBitField(State.Buttons, Gamepad_R1, buttonState); + break; + case 0x0D: + // PS3 Triangle. + manipulateBitField(State.Buttons, Gamepad_TRIANGLE, buttonState); + break; + case 0x0E: + // PS3 Circle + manipulateBitField(State.Buttons, Gamepad_CIRCLE, buttonState); + break; + case 0x0F: + // PS3 Cross + manipulateBitField(State.Buttons, Gamepad_CROSS, buttonState); + break; + case 0x10: + // PS3 Square + manipulateBitField(State.Buttons, Gamepad_SQUARE, buttonState); + break; + default: + return; + } + } + else if (usagePage == kHIDPage_GenericDesktop) + { + float v; + switch(usage) + { + case kHIDUsage_GD_X: + v = mapAnalogAxis(value, element); + if (!setStateIfDifferent(State.LX, v)) + return; + break; + case kHIDUsage_GD_Y: + v = mapAnalogAxis(value, element); + if (!setStateIfDifferent(State.LY, -v)) + return; + break; + case kHIDUsage_GD_Z: + v = mapAnalogAxis(value, element); + if (!setStateIfDifferent(State.RX, v)) + return; + break; + case kHIDUsage_GD_Rz: + v = mapAnalogAxis(value, element); + if (!setStateIfDifferent(State.RY, -v)) + return; + break; + default: + return; + } + } + } + + bStateChanged = true; +} + +void GamepadManager::manipulateBitField(unsigned int& bitfield, unsigned int mask, bool val) +{ + if (val) + { + bitfield |= mask; + } + else + { + bitfield &= ~mask; + } +} + +}}} // OVR::Platform::OSX |