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7e5340c5ac
This is a multi-part fix, and is the 2nd attempt at a fix for Bug 5034. Here are the problems being addressed: 1. On macOS 10.14.x and earlier, trying to call IOHIDDeviceUnscheduleFromRunLoop without a prior, paired call to IOHIDDeviceScheduleWithRunLoop, appears to lead to a crash. A per-device flag has been added to make sure that these calls are paired. 2. DARWIN_JoystickDetect was free'ing its SDL_joystick's hwdata field (via FreeDevice) without setting it to NULL, and DARWIN_JoystickRumble wasn't checking for a NULL hwdata. FreeDevice will now set hwdata to NULL and DARWIN_JoystickRumble will check for a NULL hwdata.
82 lines
3 KiB
C
82 lines
3 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#ifndef SDL_JOYSTICK_IOKIT_H
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#define SDL_JOYSTICK_IOKIT_H
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#include <IOKit/hid/IOHIDLib.h>
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#include <ForceFeedback/ForceFeedback.h>
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#include <ForceFeedback/ForceFeedbackConstants.h>
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struct recElement
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{
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IOHIDElementRef elementRef;
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IOHIDElementCookie cookie;
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uint32_t usagePage, usage; /* HID usage */
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SInt32 min; /* reported min value possible */
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SInt32 max; /* reported max value possible */
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/* runtime variables used for auto-calibration */
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SInt32 minReport; /* min returned value */
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SInt32 maxReport; /* max returned value */
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struct recElement *pNext; /* next element in list */
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};
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typedef struct recElement recElement;
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struct joystick_hwdata
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{
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IOHIDDeviceRef deviceRef; /* HIDManager device handle */
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io_service_t ffservice; /* Interface for force feedback, 0 = no ff */
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FFDeviceObjectReference ffdevice;
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FFEFFECT *ffeffect;
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FFEffectObjectReference ffeffect_ref;
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SDL_bool ff_initialized;
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char product[256]; /* name of product */
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uint32_t usage; /* usage page from IOUSBHID Parser.h which defines general usage */
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uint32_t usagePage; /* usage within above page from IOUSBHID Parser.h which defines specific usage */
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int axes; /* number of axis (calculated, not reported by device) */
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int buttons; /* number of buttons (calculated, not reported by device) */
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int hats; /* number of hat switches (calculated, not reported by device) */
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int elements; /* number of total elements (should be total of above) (calculated, not reported by device) */
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recElement *firstAxis;
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recElement *firstButton;
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recElement *firstHat;
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SDL_bool removed;
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SDL_Joystick *joystick;
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SDL_bool runLoopAttached; /* is 'deviceRef' attached to a CFRunLoop? */
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int instance_id;
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SDL_JoystickGUID guid;
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struct joystick_hwdata *pNext; /* next device */
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};
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typedef struct joystick_hwdata recDevice;
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#endif /* SDL_JOYSTICK_IOKIT_H */
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/* vi: set ts=4 sw=4 expandtab: */
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