[Bug 35815] New: Allow remapping of joystick buttons

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=35815

            Bug ID: 35815
           Summary: Allow remapping of joystick buttons
           Product: Wine
           Version: 1.7.14
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P2
         Component: directx-dinput
          Assignee: wine-bugs at winehq.org
          Reporter: achurch+wine at achurch.org

Some Windows games only accept a limited number of joystick button inputs,
presumably based on the set of joystick devices against which the game was
tested.  If the native driver for a device returns different button numbers
than the Windows driver, this can prevent some common controller devices from
being used with such games.  For example, the PlayStation 3 controller reports
its face buttons as button numbers 12-15, but apparently the commonly used
Windows driver "MotioninJoy" remaps these to lower button numbers; due to that,
some games (such as Astebreed: http://edelweiss.skr.jp/works/astebreed/) only
accept up to 12 button inputs, preventing PS3 controllers from working
properly.

The attached patch (against Wine 1.7.14) adds a "ButtonMap" configuration value
to the DirectInput registry key, allowing the first 16 joystick button inputs
reported by Wine to be remapped to arbitrary native joystick buttons.  The
format of the value is a comma-separated list of numbers, with the first number
giving the (zero-based) physical button index for DirectInput button 0, the
second number giving the physical button index for DirectInput button 1, and so
on for up to 16 buttons.

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