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uidriver/glfw: Bug fix: Skip some special 'joysticks'

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Apparently, there are some special devices that are recognized as
joysticks by GLFW, even though they are not. Such devices can have
too many 'buttons'. Skip them as a tentative solution.

Updates #1173
This commit is contained in:
Hajime Hoshi 2020-07-03 22:58:46 +09:00
parent b7a1e85788
commit d08f57e610
1 changed files with 23 additions and 12 deletions
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35
internal/uidriver/glfw/input.go
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@ -348,10 +348,26 @@ func (i *Input) update(window *glfw.Window, context driver.UIContext) {
if !id.Present() {
continue
}
buttons := id.GetButtons()
// A gamepad can be detected even though there are not. Apparently, some special devices are
// recognized as gamepads by GLFW. In this case, the number of the 'buttons' can exceeds the
// maximum. Skip such devices as a tentative solution (#1173).
if len(buttons) > driver.GamepadButtonNum {
continue
}
i.gamepads[id].valid = true
// Note that GLFW's gamepad GUID follows SDL's GUID.
i.gamepads[id].guid = id.GetGUID()
i.gamepads[id].name = id.GetName()
i.gamepads[id].buttonNum = len(buttons)
for b := 0; b < len(i.gamepads[id].buttonPressed); b++ {
if len(buttons) <= b {
i.gamepads[id].buttonPressed[b] = false
continue
}
i.gamepads[id].buttonPressed[b] = glfw.Action(buttons[b]) == glfw.Press
}
axes32 := id.GetAxes()
i.gamepads[id].axisNum = len(axes32)
@ -362,15 +378,10 @@ func (i *Input) update(window *glfw.Window, context driver.UIContext) {
}
i.gamepads[id].axes[a] = float64(axes32[a])
}
buttons := id.GetButtons()
i.gamepads[id].buttonNum = len(buttons)
for b := 0; b < len(i.gamepads[id].buttonPressed); b++ {
if len(buttons) <= b {
i.gamepads[id].buttonPressed[b] = false
continue
}
i.gamepads[id].buttonPressed[b] = glfw.Action(buttons[b]) == glfw.Press
}
// Note that GLFW's gamepad GUID follows SDL's GUID.
i.gamepads[id].guid = id.GetGUID()
i.gamepads[id].name = id.GetName()
}
return nil
})