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==============================================================================
= define generic event timestamp struct (probably Pd-ized input_event )
The question is whether the timeval is needed at all. Linux and Darwin
support it. Currently, I can only think of UPS PWR events actually using
timevals.
===============================================================================
= HID Manager Type/Usage/UsagePage -> Linux Type/Code mapping
UsagePage
LED UsagePage => ev_led
LED Usages == Linux ev_led codes
==============================================================================
= device selection
by # (1,2,...), generic name (mouse1, joystick2, tablet3...), or device name
("Trackpad", "Microsoft 5-button Mouse with IntelliEye(TM)", etc.)
first get # working, that's probably the easiest
by #
------------------------------
GNU/Linux
sprintf(x_devname->s_name,"/dev/input/event%d",deviceNum + 1);
Darwin
prHIDBuildDeviceList();
currentHIDDevice = discoveredDevices[gNumberOfHIDDevices];
==============================================================================
= figure out how to store device ID in obj struct
(in SC_HID.c its locID and cookie)
- it should probably just store the Pd arguments
- this will have to be dealt with when the "mouse0", "joystick2" arguments are
implemented
==============================================================================
= pollfn for mouse-like devices
- determine whether using a pollfn is actually better than using a t_clock
- any device that acts like a system mouse can be used with a pollfn, since
the mouse data will go thru Pd's network port, triggering the pollfn.
- this is probably unnecessary since the t_clock seems to run well at 1ms delay
==============================================================================
= function return values
- most functions probably do not need return values
- return (1) seems to be the default on many functions
==============================================================================
= control input messages
- the [delay( message should be replaced by the [poll( msg
- should [poll( also start things, or should it just set polling time?
- are [start( and [stop( needed? is 0/1 enough?
==============================================================================
= consistent console output
void hid_post(const char *format, const char *);
==============================================================================
= if device is closed and obj is started, open device and start
==============================================================================
= catalog Linux device behavior
- more data needed to make the proper [hid] output for MacOS X
- catalog hatswitch behavior
- catalog axis directions: right/down positive? left/up negative?
==============================================================================
= event name changes
- make key/button Type btn rather than key (undecided on this one)
==============================================================================
= make [macosxevent]
- so much info is lost in the translation to a common event scheme that it
would be quite handy to have a [macosxevent] object. This would give
access to the entire range of devices supported by HID Manager.
==============================================================================
= device 0 gets events for all available devices
- it might be useful to have device #0 open all available devices and output
the events.
==============================================================================
= mapping object ideas
- log
- exponential
______________________________________________________________________________
------------------------------------------------------------------------------
BUGS
______________________________________________________________________________
------------------------------------------------------------------------------
______________________________________________________________________________
- BUG x->x_delay reset to default when device is opened
______________________________________________________________________________
- BUG: [mouse] and [joystick] arguments don't work to open device
______________________________________________________________________________
- BUG: [open('ing a device causes all other active [hid] objs to have their
devices closed
- this means only one [hid] object can have an open device at one time
- I thought this was due to the hid_close_device() call in hid_open(), which releases
the device list, but this doesn't seem to be the case.
______________________________________________________________________________
- BUG: getting events from the queue doesn't output a 0 value event when the
motion stops, so when the mouse stops, the sound keeps playing.
This is probably only a problem on relative axes.
This will probably have to be implemented on a platform-specific level:
- On Darwin/MacOSX, I think that the HIDGetEvent() loop will have to be
followed by one call to HIDGetElementValue()
______________________________________________________________________________
- BUG: hatswitches on MacOS X output an event without a change in value
Because of the currnently implementation of the conversion of the MacOS X
style event to the Linux style event, an event with a value of zero is output
on the unchanged axis when the hatswitch is moved in along the X or Y axis (as
opposed to diagonally).
|
