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Happy new year to the wonderful Godot community! We're starting a new decade with a well-established, non-profit, free and open source game engine, and tons of further improvements in the pipeline from hundreds of contributors. Godot will keep getting better, and we're looking forward to all the games that the community will keep developing and releasing with it.
607 lines
18 KiB
C++
607 lines
18 KiB
C++
/*************************************************************************/
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/* joypad_osx.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "joypad_osx.h"
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#include <machine/endian.h>
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#define GODOT_JOY_LOOP_RUN_MODE CFSTR("GodotJoypad")
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static JoypadOSX *self = NULL;
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joypad::joypad() {
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device_ref = NULL;
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ff_device = NULL;
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ff_axes = NULL;
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ff_directions = NULL;
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ffservice = 0;
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ff_timestamp = 0;
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id = 0;
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ff_constant_force.lMagnitude = 10000;
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ff_effect.dwDuration = 0;
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ff_effect.dwSamplePeriod = 0;
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ff_effect.dwGain = 10000;
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ff_effect.dwFlags = FFEFF_OBJECTOFFSETS;
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ff_effect.dwTriggerButton = FFEB_NOTRIGGER;
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ff_effect.dwStartDelay = 0;
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ff_effect.dwTriggerRepeatInterval = 0;
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ff_effect.lpEnvelope = NULL;
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ff_effect.cbTypeSpecificParams = sizeof(FFCONSTANTFORCE);
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ff_effect.lpvTypeSpecificParams = &ff_constant_force;
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ff_effect.dwSize = sizeof(ff_effect);
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}
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void joypad::free() {
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if (device_ref) {
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IOHIDDeviceUnscheduleFromRunLoop(device_ref, CFRunLoopGetCurrent(), GODOT_JOY_LOOP_RUN_MODE);
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}
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if (ff_device) {
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FFDeviceReleaseEffect(ff_device, ff_object);
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FFReleaseDevice(ff_device);
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memfree(ff_axes);
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memfree(ff_directions);
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}
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}
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bool joypad::has_element(IOHIDElementCookie p_cookie, Vector<rec_element> *p_list) const {
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for (int i = 0; i < p_list->size(); i++) {
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if (p_cookie == p_list->get(i).cookie) {
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return true;
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}
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}
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return false;
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}
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int joypad::get_hid_element_state(rec_element *p_element) const {
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int value = 0;
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if (p_element && p_element->ref) {
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IOHIDValueRef valueRef;
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if (IOHIDDeviceGetValue(device_ref, p_element->ref, &valueRef) == kIOReturnSuccess) {
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value = (SInt32)IOHIDValueGetIntegerValue(valueRef);
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/* record min and max for auto calibration */
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if (value < p_element->min) {
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p_element->min = value;
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}
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if (value > p_element->max) {
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p_element->max = value;
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}
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}
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}
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return value;
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}
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void joypad::add_hid_element(IOHIDElementRef p_element) {
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const CFTypeID elementTypeID = p_element ? CFGetTypeID(p_element) : 0;
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if (p_element && (elementTypeID == IOHIDElementGetTypeID())) {
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const IOHIDElementCookie cookie = IOHIDElementGetCookie(p_element);
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const uint32_t usagePage = IOHIDElementGetUsagePage(p_element);
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const uint32_t usage = IOHIDElementGetUsage(p_element);
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Vector<rec_element> *list = NULL;
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switch (IOHIDElementGetType(p_element)) {
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case kIOHIDElementTypeInput_Misc:
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case kIOHIDElementTypeInput_Button:
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case kIOHIDElementTypeInput_Axis: {
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switch (usagePage) {
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case kHIDPage_GenericDesktop:
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switch (usage) {
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case kHIDUsage_GD_X:
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case kHIDUsage_GD_Y:
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case kHIDUsage_GD_Z:
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case kHIDUsage_GD_Rx:
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case kHIDUsage_GD_Ry:
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case kHIDUsage_GD_Rz:
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case kHIDUsage_GD_Slider:
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case kHIDUsage_GD_Dial:
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case kHIDUsage_GD_Wheel:
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if (!has_element(cookie, &axis_elements)) {
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list = &axis_elements;
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}
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break;
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case kHIDUsage_GD_Hatswitch:
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if (!has_element(cookie, &hat_elements)) {
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list = &hat_elements;
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}
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break;
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case kHIDUsage_GD_DPadUp:
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case kHIDUsage_GD_DPadDown:
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case kHIDUsage_GD_DPadRight:
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case kHIDUsage_GD_DPadLeft:
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case kHIDUsage_GD_Start:
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case kHIDUsage_GD_Select:
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if (!has_element(cookie, &button_elements)) {
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list = &button_elements;
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}
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break;
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}
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break;
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case kHIDPage_Simulation:
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switch (usage) {
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case kHIDUsage_Sim_Rudder:
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case kHIDUsage_Sim_Throttle:
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if (!has_element(cookie, &axis_elements)) {
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list = &axis_elements;
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}
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break;
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default:
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break;
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}
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break;
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case kHIDPage_Button:
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case kHIDPage_Consumer:
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if (!has_element(cookie, &button_elements)) {
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list = &button_elements;
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}
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break;
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default:
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break;
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}
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} break;
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case kIOHIDElementTypeCollection: {
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CFArrayRef array = IOHIDElementGetChildren(p_element);
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if (array) {
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add_hid_elements(array);
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}
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} break;
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default:
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break;
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}
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if (list) { /* add to list */
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rec_element element;
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element.ref = p_element;
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element.usage = usage;
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element.min = (SInt32)IOHIDElementGetLogicalMin(p_element);
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element.max = (SInt32)IOHIDElementGetLogicalMax(p_element);
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element.cookie = IOHIDElementGetCookie(p_element);
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list->push_back(element);
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list->sort_custom<rec_element::Comparator>();
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}
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}
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}
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static void hid_element_added(const void *p_value, void *p_parameter) {
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joypad *joy = (joypad *)p_parameter;
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joy->add_hid_element((IOHIDElementRef)p_value);
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}
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void joypad::add_hid_elements(CFArrayRef p_array) {
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CFRange range = { 0, CFArrayGetCount(p_array) };
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CFArrayApplyFunction(p_array, range, hid_element_added, this);
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}
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static void joypad_removed_callback(void *ctx, IOReturn result, void *sender) {
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int id = (intptr_t)ctx;
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self->_device_removed(id);
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}
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static void joypad_added_callback(void *ctx, IOReturn res, void *sender, IOHIDDeviceRef ioHIDDeviceObject) {
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self->_device_added(res, ioHIDDeviceObject);
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}
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static bool is_joypad(IOHIDDeviceRef p_device_ref) {
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int usage_page = 0;
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int usage = 0;
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CFTypeRef refCF = IOHIDDeviceGetProperty(p_device_ref, CFSTR(kIOHIDPrimaryUsagePageKey));
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if (refCF) {
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CFNumberGetValue((CFNumberRef)refCF, kCFNumberSInt32Type, &usage_page);
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}
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if (usage_page != kHIDPage_GenericDesktop) {
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return false;
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}
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refCF = IOHIDDeviceGetProperty(p_device_ref, CFSTR(kIOHIDPrimaryUsageKey));
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if (refCF) {
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CFNumberGetValue((CFNumberRef)refCF, kCFNumberSInt32Type, &usage);
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}
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if ((usage != kHIDUsage_GD_Joystick &&
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usage != kHIDUsage_GD_GamePad &&
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usage != kHIDUsage_GD_MultiAxisController)) {
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return false;
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}
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return true;
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}
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void JoypadOSX::_device_added(IOReturn p_res, IOHIDDeviceRef p_device) {
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if (p_res != kIOReturnSuccess || have_device(p_device)) {
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return;
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}
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joypad new_joypad;
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if (is_joypad(p_device)) {
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configure_joypad(p_device, &new_joypad);
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#if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
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if (IOHIDDeviceGetService != NULL) {
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#endif
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const io_service_t ioservice = IOHIDDeviceGetService(p_device);
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if ((ioservice) && (FFIsForceFeedback(ioservice) == FF_OK) && new_joypad.config_force_feedback(ioservice)) {
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new_joypad.ffservice = ioservice;
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}
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#if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
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}
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#endif
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device_list.push_back(new_joypad);
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}
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IOHIDDeviceRegisterRemovalCallback(p_device, joypad_removed_callback, (void *)(intptr_t)new_joypad.id);
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IOHIDDeviceScheduleWithRunLoop(p_device, CFRunLoopGetCurrent(), GODOT_JOY_LOOP_RUN_MODE);
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}
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void JoypadOSX::_device_removed(int p_id) {
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int device = get_joy_index(p_id);
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ERR_FAIL_COND(device == -1);
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input->joy_connection_changed(p_id, false, "");
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device_list.write[device].free();
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device_list.remove(device);
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}
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static String _hex_str(uint8_t p_byte) {
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static const char *dict = "0123456789abcdef";
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char ret[3];
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ret[2] = 0;
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ret[0] = dict[p_byte >> 4];
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ret[1] = dict[p_byte & 0xF];
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return ret;
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}
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bool JoypadOSX::configure_joypad(IOHIDDeviceRef p_device_ref, joypad *p_joy) {
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p_joy->device_ref = p_device_ref;
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/* get device name */
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String name;
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char c_name[256];
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CFTypeRef refCF = IOHIDDeviceGetProperty(p_device_ref, CFSTR(kIOHIDProductKey));
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if (!refCF) {
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refCF = IOHIDDeviceGetProperty(p_device_ref, CFSTR(kIOHIDManufacturerKey));
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}
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if ((!refCF) || (!CFStringGetCString((CFStringRef)refCF, c_name, sizeof(c_name), kCFStringEncodingUTF8))) {
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name = "Unidentified Joypad";
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}
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name = c_name;
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int id = input->get_unused_joy_id();
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ERR_FAIL_COND_V(id == -1, false);
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p_joy->id = id;
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int vendor = 0;
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refCF = IOHIDDeviceGetProperty(p_device_ref, CFSTR(kIOHIDVendorIDKey));
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if (refCF) {
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CFNumberGetValue((CFNumberRef)refCF, kCFNumberSInt32Type, &vendor);
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}
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int product_id = 0;
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refCF = IOHIDDeviceGetProperty(p_device_ref, CFSTR(kIOHIDProductIDKey));
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if (refCF) {
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CFNumberGetValue((CFNumberRef)refCF, kCFNumberSInt32Type, &product_id);
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}
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if (vendor && product_id) {
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char uid[128];
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sprintf(uid, "%04x%08x%04x%08x", OSSwapHostToBigInt32(vendor), 0, OSSwapHostToBigInt32(product_id), 0);
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input->joy_connection_changed(id, true, name, uid);
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} else {
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//bluetooth device
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String guid = "05000000";
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for (int i = 0; i < 12; i++) {
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if (i < name.size())
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guid += _hex_str(name[i]);
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else
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guid += "00";
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}
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input->joy_connection_changed(id, true, name, guid);
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}
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CFArrayRef array = IOHIDDeviceCopyMatchingElements(p_device_ref, NULL, kIOHIDOptionsTypeNone);
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if (array) {
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p_joy->add_hid_elements(array);
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CFRelease(array);
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}
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return true;
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}
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#define FF_ERR() \
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{ \
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if (ret != FF_OK) { \
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FFReleaseDevice(ff_device); \
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return false; \
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} \
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}
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bool joypad::config_force_feedback(io_service_t p_service) {
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HRESULT ret = FFCreateDevice(p_service, &ff_device);
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ERR_FAIL_COND_V(ret != FF_OK, false);
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ret = FFDeviceSendForceFeedbackCommand(ff_device, FFSFFC_RESET);
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FF_ERR();
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ret = FFDeviceSendForceFeedbackCommand(ff_device, FFSFFC_SETACTUATORSON);
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FF_ERR();
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if (check_ff_features()) {
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ret = FFDeviceCreateEffect(ff_device, kFFEffectType_ConstantForce_ID, &ff_effect, &ff_object);
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FF_ERR();
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return true;
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}
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FFReleaseDevice(ff_device);
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return false;
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}
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#undef FF_ERR
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#define TEST_FF(ff) (features.supportedEffects & (ff))
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bool joypad::check_ff_features() {
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FFCAPABILITIES features;
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HRESULT ret = FFDeviceGetForceFeedbackCapabilities(ff_device, &features);
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if (ret == FF_OK && (features.supportedEffects & FFCAP_ET_CONSTANTFORCE)) {
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uint32_t val;
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ret = FFDeviceGetForceFeedbackProperty(ff_device, FFPROP_FFGAIN, &val, sizeof(val));
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if (ret != FF_OK) return false;
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int num_axes = features.numFfAxes;
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ff_axes = (DWORD *)memalloc(sizeof(DWORD) * num_axes);
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ff_directions = (LONG *)memalloc(sizeof(LONG) * num_axes);
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for (int i = 0; i < num_axes; i++) {
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ff_axes[i] = features.ffAxes[i];
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ff_directions[i] = 0;
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}
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ff_effect.cAxes = num_axes;
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ff_effect.rgdwAxes = ff_axes;
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ff_effect.rglDirection = ff_directions;
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return true;
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}
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return false;
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}
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static int process_hat_value(int p_min, int p_max, int p_value) {
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int range = (p_max - p_min + 1);
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int value = p_value - p_min;
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int hat_value = InputDefault::HAT_MASK_CENTER;
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if (range == 4) {
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value *= 2;
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}
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switch (value) {
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case 0:
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hat_value = InputDefault::HAT_MASK_UP;
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break;
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case 1:
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hat_value = InputDefault::HAT_MASK_UP | InputDefault::HAT_MASK_RIGHT;
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break;
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case 2:
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hat_value = InputDefault::HAT_MASK_RIGHT;
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break;
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case 3:
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hat_value = InputDefault::HAT_MASK_DOWN | InputDefault::HAT_MASK_RIGHT;
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break;
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case 4:
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hat_value = InputDefault::HAT_MASK_DOWN;
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break;
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case 5:
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hat_value = InputDefault::HAT_MASK_DOWN | InputDefault::HAT_MASK_LEFT;
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break;
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case 6:
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hat_value = InputDefault::HAT_MASK_LEFT;
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break;
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case 7:
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hat_value = InputDefault::HAT_MASK_UP | InputDefault::HAT_MASK_LEFT;
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break;
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default:
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hat_value = InputDefault::HAT_MASK_CENTER;
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break;
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}
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return hat_value;
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}
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void JoypadOSX::poll_joypads() const {
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while (CFRunLoopRunInMode(GODOT_JOY_LOOP_RUN_MODE, 0, TRUE) == kCFRunLoopRunHandledSource) {
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/* no-op. Pending callbacks will fire. */
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}
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}
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static const InputDefault::JoyAxis axis_correct(int p_value, int p_min, int p_max) {
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InputDefault::JoyAxis jx;
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if (p_min < 0) {
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jx.min = -1;
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if (p_value < 0) {
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jx.value = (float)-p_value / p_min;
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} else
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jx.value = (float)p_value / p_max;
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}
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if (p_min == 0) {
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jx.min = 0;
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jx.value = 0.0f + (float)p_value / p_max;
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}
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return jx;
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}
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void JoypadOSX::process_joypads() {
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poll_joypads();
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for (int i = 0; i < device_list.size(); i++) {
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joypad &joy = device_list.write[i];
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for (int j = 0; j < joy.axis_elements.size(); j++) {
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rec_element &elem = joy.axis_elements.write[j];
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int value = joy.get_hid_element_state(&elem);
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input->joy_axis(joy.id, j, axis_correct(value, elem.min, elem.max));
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}
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for (int j = 0; j < joy.button_elements.size(); j++) {
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int value = joy.get_hid_element_state(&joy.button_elements.write[j]);
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input->joy_button(joy.id, j, (value >= 1));
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}
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for (int j = 0; j < joy.hat_elements.size(); j++) {
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rec_element &elem = joy.hat_elements.write[j];
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int value = joy.get_hid_element_state(&elem);
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int hat_value = process_hat_value(elem.min, elem.max, value);
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input->joy_hat(joy.id, hat_value);
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}
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|
|
|
if (joy.ffservice) {
|
|
uint64_t timestamp = input->get_joy_vibration_timestamp(joy.id);
|
|
if (timestamp > joy.ff_timestamp) {
|
|
Vector2 strength = input->get_joy_vibration_strength(joy.id);
|
|
float duration = input->get_joy_vibration_duration(joy.id);
|
|
if (strength.x == 0 && strength.y == 0) {
|
|
joypad_vibration_stop(joy.id, timestamp);
|
|
} else {
|
|
float gain = MAX(strength.x, strength.y);
|
|
joypad_vibration_start(joy.id, gain, duration, timestamp);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void JoypadOSX::joypad_vibration_start(int p_id, float p_magnitude, float p_duration, uint64_t p_timestamp) {
|
|
joypad *joy = &device_list.write[get_joy_index(p_id)];
|
|
joy->ff_timestamp = p_timestamp;
|
|
joy->ff_effect.dwDuration = p_duration * FF_SECONDS;
|
|
joy->ff_effect.dwGain = p_magnitude * FF_FFNOMINALMAX;
|
|
FFEffectSetParameters(joy->ff_object, &joy->ff_effect, FFEP_DURATION | FFEP_GAIN);
|
|
FFEffectStart(joy->ff_object, 1, 0);
|
|
}
|
|
|
|
void JoypadOSX::joypad_vibration_stop(int p_id, uint64_t p_timestamp) {
|
|
joypad *joy = &device_list.write[get_joy_index(p_id)];
|
|
joy->ff_timestamp = p_timestamp;
|
|
FFEffectStop(joy->ff_object);
|
|
}
|
|
|
|
int JoypadOSX::get_joy_index(int p_id) const {
|
|
for (int i = 0; i < device_list.size(); i++) {
|
|
if (device_list[i].id == p_id) return i;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
bool JoypadOSX::have_device(IOHIDDeviceRef p_device) const {
|
|
for (int i = 0; i < device_list.size(); i++) {
|
|
if (device_list[i].device_ref == p_device) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static CFDictionaryRef create_match_dictionary(const UInt32 page, const UInt32 usage, int *okay) {
|
|
CFDictionaryRef retval = NULL;
|
|
CFNumberRef pageNumRef = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &page);
|
|
CFNumberRef usageNumRef = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &usage);
|
|
const void *keys[2] = { (void *)CFSTR(kIOHIDDeviceUsagePageKey), (void *)CFSTR(kIOHIDDeviceUsageKey) };
|
|
const void *vals[2] = { (void *)pageNumRef, (void *)usageNumRef };
|
|
|
|
if (pageNumRef && usageNumRef) {
|
|
retval = CFDictionaryCreate(kCFAllocatorDefault, keys, vals, 2, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
|
|
}
|
|
|
|
if (pageNumRef) {
|
|
CFRelease(pageNumRef);
|
|
}
|
|
if (usageNumRef) {
|
|
CFRelease(usageNumRef);
|
|
}
|
|
|
|
if (!retval) {
|
|
*okay = 0;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
void JoypadOSX::config_hid_manager(CFArrayRef p_matching_array) const {
|
|
|
|
CFRunLoopRef runloop = CFRunLoopGetCurrent();
|
|
IOReturn ret = IOHIDManagerOpen(hid_manager, kIOHIDOptionsTypeNone);
|
|
ERR_FAIL_COND(ret != kIOReturnSuccess);
|
|
|
|
IOHIDManagerSetDeviceMatchingMultiple(hid_manager, p_matching_array);
|
|
IOHIDManagerRegisterDeviceMatchingCallback(hid_manager, joypad_added_callback, NULL);
|
|
IOHIDManagerScheduleWithRunLoop(hid_manager, runloop, GODOT_JOY_LOOP_RUN_MODE);
|
|
|
|
while (CFRunLoopRunInMode(GODOT_JOY_LOOP_RUN_MODE, 0, TRUE) == kCFRunLoopRunHandledSource) {
|
|
/* no-op. Callback fires once per existing device. */
|
|
}
|
|
}
|
|
|
|
JoypadOSX::JoypadOSX() {
|
|
self = this;
|
|
input = (InputDefault *)Input::get_singleton();
|
|
|
|
int okay = 1;
|
|
const void *vals[] = {
|
|
(void *)create_match_dictionary(kHIDPage_GenericDesktop, kHIDUsage_GD_Joystick, &okay),
|
|
(void *)create_match_dictionary(kHIDPage_GenericDesktop, kHIDUsage_GD_GamePad, &okay),
|
|
(void *)create_match_dictionary(kHIDPage_GenericDesktop, kHIDUsage_GD_MultiAxisController, &okay),
|
|
};
|
|
const size_t n_elements = sizeof(vals) / sizeof(vals[0]);
|
|
CFArrayRef array = okay ? CFArrayCreate(kCFAllocatorDefault, vals, n_elements, &kCFTypeArrayCallBacks) : NULL;
|
|
|
|
for (size_t i = 0; i < n_elements; i++) {
|
|
if (vals[i]) {
|
|
CFRelease((CFTypeRef)vals[i]);
|
|
}
|
|
}
|
|
|
|
if (array) {
|
|
hid_manager = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone);
|
|
if (hid_manager != NULL) {
|
|
config_hid_manager(array);
|
|
}
|
|
CFRelease(array);
|
|
}
|
|
}
|
|
|
|
JoypadOSX::~JoypadOSX() {
|
|
|
|
for (int i = 0; i < device_list.size(); i++) {
|
|
device_list.write[i].free();
|
|
}
|
|
|
|
IOHIDManagerUnscheduleFromRunLoop(hid_manager, CFRunLoopGetCurrent(), GODOT_JOY_LOOP_RUN_MODE);
|
|
IOHIDManagerClose(hid_manager, kIOHIDOptionsTypeNone);
|
|
CFRelease(hid_manager);
|
|
hid_manager = NULL;
|
|
}
|