mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-12-25 19:28:57 +01:00
764 lines
22 KiB
Go
764 lines
22 KiB
Go
// Copyright 2022 The Ebiten Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build !ebitencbackend
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// +build !ebitencbackend
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package gamepad
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import (
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"errors"
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"fmt"
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"sort"
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"strings"
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"sync/atomic"
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"syscall"
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"time"
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"unsafe"
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"golang.org/x/sys/windows"
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)
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type dinputObjectType int
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const (
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dinputObjectTypeAxis dinputObjectType = iota
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dinputObjectTypeSlider
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dinputObjectTypeButton
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dinputObjectTypePOV
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)
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var dinputObjectDataFormats = []diObjectDataFormat{
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{&guidXAxis, _DIJOFS_X, _DIDFT_AXIS | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, _DIDOI_ASPECTPOSITION},
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{&guidYAxis, _DIJOFS_Y, _DIDFT_AXIS | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, _DIDOI_ASPECTPOSITION},
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{&guidZAxis, _DIJOFS_Z, _DIDFT_AXIS | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, _DIDOI_ASPECTPOSITION},
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{&guidRxAxis, _DIJOFS_RX, _DIDFT_AXIS | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, _DIDOI_ASPECTPOSITION},
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{&guidRyAxis, _DIJOFS_RY, _DIDFT_AXIS | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, _DIDOI_ASPECTPOSITION},
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{&guidRzAxis, _DIJOFS_RZ, _DIDFT_AXIS | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, _DIDOI_ASPECTPOSITION},
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{&guidSlider, diJofsSlider(0), _DIDFT_AXIS | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, _DIDOI_ASPECTPOSITION},
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{&guidSlider, diJofsSlider(1), _DIDFT_AXIS | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, _DIDOI_ASPECTPOSITION},
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{&guidPOV, diJofsPOV(0), _DIDFT_POV | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{&guidPOV, diJofsPOV(1), _DIDFT_POV | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{&guidPOV, diJofsPOV(2), _DIDFT_POV | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{&guidPOV, diJofsPOV(3), _DIDFT_POV | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(0), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(1), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(2), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(3), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(4), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(5), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(6), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(7), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(8), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(9), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(10), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(11), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(12), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(13), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(14), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(15), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(16), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(17), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(18), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(19), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(20), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(21), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(22), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(23), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(24), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(25), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(26), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(27), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(28), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(29), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(30), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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{nil, diJofsButton(31), _DIDFT_BUTTON | _DIDFT_OPTIONAL | _DIDFT_ANYINSTANCE, 0},
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}
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var xinputButtons = []uint16{
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_XINPUT_GAMEPAD_A,
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_XINPUT_GAMEPAD_B,
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_XINPUT_GAMEPAD_X,
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_XINPUT_GAMEPAD_Y,
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_XINPUT_GAMEPAD_LEFT_SHOULDER,
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_XINPUT_GAMEPAD_RIGHT_SHOULDER,
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_XINPUT_GAMEPAD_BACK,
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_XINPUT_GAMEPAD_START,
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_XINPUT_GAMEPAD_LEFT_THUMB,
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_XINPUT_GAMEPAD_RIGHT_THUMB,
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}
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type nativeGamepads struct {
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dinput8 windows.Handle
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dinput8API *iDirectInput8W
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xinput windows.Handle
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procDirectInput8Create uintptr
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procXInputGetCapabilities uintptr
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procXInputGetState uintptr
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origWndProc uintptr
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wndProcCallback uintptr
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enumDevicesCallback uintptr
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enumObjectsCallback uintptr
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deviceChanged int32
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err error
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}
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type dinputObject struct {
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objectType dinputObjectType
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index int
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}
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type enumObjectsContext struct {
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device *iDirectInputDevice8W
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objects []dinputObject
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axisCount int
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sliderCount int
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buttonCount int
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povCount int
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}
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func (g *nativeGamepads) init(gamepads *gamepads) error {
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// As there is no guarantee that the DLL exists, NewLazySystemDLL is not available.
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// TODO: Is there a 'system' version of LoadLibrary?
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if h, err := windows.LoadLibrary("dinput8.dll"); err == nil {
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g.dinput8 = h
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p, err := windows.GetProcAddress(h, "DirectInput8Create")
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if err != nil {
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return err
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}
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g.procDirectInput8Create = p
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}
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// TODO: Loading xinput1_4.dll or xinput9_1_0.dll should be enough.
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// See https://source.chromium.org/chromium/chromium/src/+/main:device/gamepad/xinput_data_fetcher_win.cc;l=75-84;drc=643cdf61903e99f27c3d80daee67e217e9d280e0
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for _, dll := range []string{
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"xinput1_4.dll",
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"xinput1_3.dll",
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"xinput9_1_0.dll",
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"xinput1_2.dll",
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"xinput1_1.dll",
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} {
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if h, err := windows.LoadLibrary(dll); err == nil {
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g.xinput = h
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{
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p, err := windows.GetProcAddress(h, "XInputGetCapabilities")
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if err != nil {
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return err
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}
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g.procXInputGetCapabilities = p
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}
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{
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p, err := windows.GetProcAddress(h, "XInputGetState")
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if err != nil {
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return err
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}
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g.procXInputGetState = p
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}
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break
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}
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}
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if g.dinput8 != 0 {
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m, err := getModuleHandleW()
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if err != nil {
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return err
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}
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var api *iDirectInput8W
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if err := g.directInput8Create(m, _DIRECTINPUT_VERSION, &iidIDirectInput8W, &api, nil); err != nil {
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return err
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}
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g.dinput8API = api
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if err := g.detectConnection(gamepads); err != nil {
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return err
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}
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}
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return nil
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}
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func (g *nativeGamepads) directInput8Create(hinst uintptr, dwVersion uint32, riidltf *windows.GUID, ppvOut **iDirectInput8W, punkOuter unsafe.Pointer) error {
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r, _, _ := syscall.Syscall6(g.procDirectInput8Create, 5,
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hinst, uintptr(dwVersion), uintptr(unsafe.Pointer(riidltf)), uintptr(unsafe.Pointer(ppvOut)), uintptr(punkOuter),
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0)
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if r != _DI_OK {
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return fmt.Errorf("gamepad: DirectInput8Create failed: %w", directInputError(syscall.Errno(r)))
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}
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return nil
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}
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func (g *nativeGamepads) xinputGetCapabilities(dwUserIndex uint32, dwFlags uint32, pCapabilities *xinputCapabilities) error {
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r, _, _ := syscall.Syscall(g.procXInputGetCapabilities, 3,
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uintptr(dwUserIndex), uintptr(dwFlags), uintptr(unsafe.Pointer(pCapabilities)))
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if e := syscall.Errno(r); e != windows.ERROR_SUCCESS {
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return fmt.Errorf("gamepad: XInputGetCapabilities failed: %w", e)
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}
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return nil
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}
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func (g *nativeGamepads) xinputGetState(dwUserIndex uint32, pState *xinputState) error {
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r, _, _ := syscall.Syscall(g.procXInputGetState, 2,
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uintptr(dwUserIndex), uintptr(unsafe.Pointer(pState)), 0)
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if e := syscall.Errno(r); e != windows.ERROR_SUCCESS {
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return fmt.Errorf("gamepad: XInputGetCapabilities failed: %w", e)
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}
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return nil
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}
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func (g *nativeGamepads) detectConnection(gamepads *gamepads) error {
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if g.dinput8 != 0 {
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if g.enumDevicesCallback == 0 {
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g.enumDevicesCallback = windows.NewCallback(g.dinput8EnumDevicesCallback)
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}
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if err := g.dinput8API.EnumDevices(_DI8DEVCLASS_GAMECTRL, g.enumDevicesCallback, unsafe.Pointer(gamepads), _DIEDFL_ALLDEVICES); err != nil {
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return err
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}
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if g.err != nil {
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return g.err
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}
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}
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if g.xinput != 0 {
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const xuserMaxCount = 4
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for i := 0; i < xuserMaxCount; i++ {
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if gamepads.find(func(g *Gamepad) bool {
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return g.dinputDevice == nil && g.xinputIndex == i
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}) != nil {
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continue
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}
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var xic xinputCapabilities
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if err := g.xinputGetCapabilities(uint32(i), 0, &xic); err != nil {
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if !errors.Is(err, windows.ERROR_DEVICE_NOT_CONNECTED) {
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return err
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}
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continue
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}
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sdlID := fmt.Sprintf("78696e707574%02x000000000000000000", xic.subType&0xff)
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name := "Unknown XInput Device"
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switch xic.subType {
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case _XINPUT_DEVSUBTYPE_GAMEPAD:
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if xic.flags&_XINPUT_CAPS_WIRELESS != 0 {
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name = "Wireless Xbox Controller"
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} else {
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name = "Xbox Controller"
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}
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case _XINPUT_DEVSUBTYPE_WHEEL:
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name = "XInput Wheel"
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case _XINPUT_DEVSUBTYPE_ARCADE_STICK:
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name = "XInput Arcade Stick"
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case _XINPUT_DEVSUBTYPE_FLIGHT_STICK:
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name = "XInput Flight Stick"
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case _XINPUT_DEVSUBTYPE_DANCE_PAD:
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name = "XInput Dance Pad"
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case _XINPUT_DEVSUBTYPE_GUITAR:
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name = "XInput Guitar"
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case _XINPUT_DEVSUBTYPE_DRUM_KIT:
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name = "XInput Drum Kit"
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}
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gp := gamepads.add(name, sdlID)
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gp.xinputIndex = i
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}
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}
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return nil
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}
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func (g *nativeGamepads) dinput8EnumDevicesCallback(lpddi *diDeviceInstanceW, pvRef unsafe.Pointer) uintptr {
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gamepads := (*gamepads)(pvRef)
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if g.err != nil {
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return _DIENUM_STOP
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}
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if gamepads.find(func(g *Gamepad) bool {
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return g.dinputGUID == lpddi.guidInstance
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}) != nil {
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return _DIENUM_CONTINUE
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}
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s, err := supportsXInput(lpddi.guidProduct)
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if err != nil {
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g.err = err
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return _DIENUM_STOP
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}
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if s {
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return _DIENUM_CONTINUE
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}
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var device *iDirectInputDevice8W
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if err := g.dinput8API.CreateDevice(&lpddi.guidInstance, &device, nil); err != nil {
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g.err = err
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return _DIENUM_STOP
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}
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dataFormat := diDataFormat{
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dwSize: uint32(unsafe.Sizeof(diDataFormat{})),
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dwObjSize: uint32(unsafe.Sizeof(diObjectDataFormat{})),
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dwFlags: _DIDFT_ABSAXIS,
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dwDataSize: uint32(unsafe.Sizeof(diJoyState{})),
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dwNumObjs: uint32(len(dinputObjectDataFormats)),
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rgodf: &dinputObjectDataFormats[0],
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}
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if err := device.SetDataFormat(&dataFormat); err != nil {
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g.err = err
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device.Release()
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return _DIENUM_STOP
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}
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dc := diDevCaps{
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dwSize: uint32(unsafe.Sizeof(diDevCaps{})),
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}
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if err := device.GetCapabilities(&dc); err != nil {
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g.err = err
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device.Release()
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return _DIENUM_STOP
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}
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dipd := diPropDword{
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diph: diPropHeader{
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dwSize: uint32(unsafe.Sizeof(diPropDword{})),
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dwHeaderSize: uint32(unsafe.Sizeof(diPropHeader{})),
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dwHow: _DIPH_DEVICE,
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},
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dwData: _DIPROPAXISMODE_ABS,
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}
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if err := device.SetProperty(_DIPROP_AXISMODE, &dipd.diph); err != nil {
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g.err = err
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device.Release()
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return _DIENUM_STOP
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}
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ctx := enumObjectsContext{
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device: device,
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}
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if g.enumObjectsCallback == 0 {
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g.enumObjectsCallback = windows.NewCallback(g.dinputDevice8EnumObjectsCallback)
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}
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if err := device.EnumObjects(g.enumObjectsCallback, unsafe.Pointer(&ctx), _DIDFT_AXIS|_DIDFT_BUTTON|_DIDFT_POV); err != nil {
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g.err = err
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device.Release()
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return _DIENUM_STOP
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}
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sort.Slice(ctx.objects, func(i, j int) bool {
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if ctx.objects[i].objectType != ctx.objects[j].objectType {
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return ctx.objects[i].objectType < ctx.objects[j].objectType
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}
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return ctx.objects[i].index < ctx.objects[j].index
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})
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|
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name := windows.UTF16ToString(lpddi.tszInstanceName[:])
|
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var sdlID string
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if string(lpddi.guidProduct.Data4[2:8]) == "PIDVID" {
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// This seems different from the current SDL implementation.
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// Probably guidProduct includes the vendor and the product information, but this works.
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// From the game controller database, the 'version' part seems always 0.
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sdlID = fmt.Sprintf("03000000%02x%02x0000%02x%02x000000000000",
|
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byte(lpddi.guidProduct.Data1),
|
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byte(lpddi.guidProduct.Data1>>8),
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byte(lpddi.guidProduct.Data1>>16),
|
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byte(lpddi.guidProduct.Data1>>24))
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} else {
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bs := []byte(name)
|
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if len(bs) < 12 {
|
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bs = append(bs, make([]byte, 12-len(bs))...)
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}
|
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sdlID = fmt.Sprintf("05000000%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
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bs[0], bs[1], bs[2], bs[3], bs[4], bs[5], bs[6], bs[7], bs[8], bs[9], bs[10], bs[11])
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}
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gp := gamepads.add(name, sdlID)
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gp.dinputDevice = device
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gp.dinputObjects = ctx.objects
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gp.dinputGUID = lpddi.guidInstance
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gp.dinputAxes = make([]float64, ctx.axisCount+ctx.sliderCount)
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gp.dinputButtons = make([]bool, ctx.buttonCount)
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gp.dinputHats = make([]int, ctx.povCount)
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return _DIENUM_CONTINUE
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}
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|
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func supportsXInput(guid windows.GUID) (bool, error) {
|
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var count uint32
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if r, err := getRawInputDeviceList(nil, &count); err != nil {
|
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return false, err
|
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} else if r != 0 {
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return false, nil
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}
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|
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ridl := make([]rawInputDeviceList, count)
|
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if _, err := getRawInputDeviceList(&ridl[0], &count); err != nil {
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return false, err
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}
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|
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for i := 0; i < int(count); i++ {
|
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if ridl[i].dwType != _RIM_TYPEHID {
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continue
|
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}
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|
|
|
rdi := ridDeviceInfo{
|
|
cbSize: uint32(unsafe.Sizeof(ridDeviceInfo{})),
|
|
}
|
|
size := uint32(unsafe.Sizeof(rdi))
|
|
if _, err := getRawInputDeviceInfoW(ridl[i].hDevice, _RIDI_DEVICEINFO, unsafe.Pointer(&rdi), &size); err != nil {
|
|
return false, err
|
|
}
|
|
|
|
if uint32(rdi.hid.dwVendorId)|(uint32(rdi.hid.dwProductId)<<16) != guid.Data1 {
|
|
continue
|
|
}
|
|
|
|
var name [256]uint16
|
|
size = uint32(unsafe.Sizeof(name))
|
|
if _, err := getRawInputDeviceInfoW(ridl[i].hDevice, _RIDI_DEVICENAME, unsafe.Pointer(&name[0]), &size); err != nil {
|
|
return false, err
|
|
}
|
|
|
|
if strings.Contains(windows.UTF16ToString(name[:]), "IG_") {
|
|
return true, nil
|
|
}
|
|
}
|
|
|
|
return false, nil
|
|
}
|
|
|
|
func (g *nativeGamepads) dinputDevice8EnumObjectsCallback(lpddoi *diDeviceObjectInstanceW, pvRef unsafe.Pointer) uintptr {
|
|
ctx := (*enumObjectsContext)(pvRef)
|
|
|
|
switch {
|
|
case diDftGetType(lpddoi.dwType)&_DIDFT_AXIS != 0:
|
|
var index int
|
|
switch lpddoi.guidType {
|
|
case guidSlider:
|
|
index = ctx.sliderCount
|
|
case guidXAxis:
|
|
index = 0
|
|
case guidYAxis:
|
|
index = 1
|
|
case guidZAxis:
|
|
index = 2
|
|
case guidRxAxis:
|
|
index = 3
|
|
case guidRyAxis:
|
|
index = 4
|
|
case guidRzAxis:
|
|
index = 5
|
|
default:
|
|
return _DIENUM_CONTINUE
|
|
}
|
|
|
|
dipr := diPropRange{
|
|
diph: diPropHeader{
|
|
dwSize: uint32(unsafe.Sizeof(diPropRange{})),
|
|
dwHeaderSize: uint32(unsafe.Sizeof(diPropHeader{})),
|
|
dwObj: lpddoi.dwType,
|
|
dwHow: _DIPH_BYID,
|
|
},
|
|
lMin: -32768,
|
|
lMax: 32767,
|
|
}
|
|
if err := ctx.device.SetProperty(_DIPROP_RANGE, &dipr.diph); err != nil {
|
|
return _DIENUM_CONTINUE
|
|
}
|
|
|
|
var objectType dinputObjectType
|
|
if lpddoi.guidType == guidSlider {
|
|
objectType = dinputObjectTypeSlider
|
|
ctx.sliderCount++
|
|
} else {
|
|
objectType = dinputObjectTypeAxis
|
|
ctx.axisCount++
|
|
}
|
|
ctx.objects = append(ctx.objects, dinputObject{
|
|
objectType: objectType,
|
|
index: index,
|
|
})
|
|
case diDftGetType(lpddoi.dwType)&_DIDFT_BUTTON != 0:
|
|
ctx.objects = append(ctx.objects, dinputObject{
|
|
objectType: dinputObjectTypeButton,
|
|
index: ctx.buttonCount,
|
|
})
|
|
ctx.buttonCount++
|
|
case diDftGetType(lpddoi.dwType)&_DIDFT_POV != 0:
|
|
ctx.objects = append(ctx.objects, dinputObject{
|
|
objectType: dinputObjectTypePOV,
|
|
index: ctx.povCount,
|
|
})
|
|
ctx.povCount++
|
|
}
|
|
|
|
return _DIENUM_CONTINUE
|
|
}
|
|
|
|
func (g *nativeGamepads) update(gamepads *gamepads) error {
|
|
if g.err != nil {
|
|
return g.err
|
|
}
|
|
if g.origWndProc == 0 {
|
|
if g.wndProcCallback == 0 {
|
|
g.wndProcCallback = windows.NewCallback(g.wndProc)
|
|
}
|
|
h, err := setWindowLongPtrW(getActiveWindow(), _GWL_WNDPROC, g.wndProcCallback)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
g.origWndProc = h
|
|
}
|
|
|
|
if atomic.LoadInt32(&g.deviceChanged) != 0 {
|
|
if err := g.detectConnection(gamepads); err != nil {
|
|
g.err = err
|
|
}
|
|
atomic.StoreInt32(&g.deviceChanged, 0)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (g *nativeGamepads) wndProc(hWnd uintptr, uMsg uint32, wParam, lParam uintptr) uintptr {
|
|
switch uMsg {
|
|
case _WM_DEVICECHANGE:
|
|
atomic.StoreInt32(&g.deviceChanged, 1)
|
|
}
|
|
return callWindowProcW(g.origWndProc, hWnd, uMsg, wParam, lParam)
|
|
}
|
|
|
|
type nativeGamepad struct {
|
|
dinputDevice *iDirectInputDevice8W
|
|
dinputObjects []dinputObject
|
|
dinputGUID windows.GUID
|
|
dinputAxes []float64
|
|
dinputButtons []bool
|
|
dinputHats []int
|
|
|
|
xinputIndex int
|
|
xinputState xinputState
|
|
}
|
|
|
|
func (*nativeGamepad) hasOwnStandardLayoutMapping() bool {
|
|
return false
|
|
}
|
|
|
|
func (g *nativeGamepad) usesDInput() bool {
|
|
return g.dinputDevice != nil
|
|
}
|
|
|
|
func (g *nativeGamepad) update(gamepads *gamepads) (err error) {
|
|
var disconnected bool
|
|
defer func() {
|
|
if !disconnected && err == nil {
|
|
return
|
|
}
|
|
gamepads.remove(func(gamepad *Gamepad) bool {
|
|
return &gamepad.nativeGamepad == g
|
|
})
|
|
}()
|
|
|
|
if g.usesDInput() {
|
|
if err := g.dinputDevice.Poll(); err != nil {
|
|
if !errors.Is(err, directInputError(_DIERR_NOTACQUIRED)) && !errors.Is(err, directInputError(_DIERR_INPUTLOST)) {
|
|
return err
|
|
}
|
|
}
|
|
|
|
var state diJoyState
|
|
if err := g.dinputDevice.GetDeviceState(uint32(unsafe.Sizeof(state)), unsafe.Pointer(&state)); err != nil {
|
|
if !errors.Is(err, directInputError(_DIERR_NOTACQUIRED)) && !errors.Is(err, directInputError(_DIERR_INPUTLOST)) {
|
|
return err
|
|
}
|
|
// Acquire can return an error just after a gamepad is disconnected. Ignore the error.
|
|
g.dinputDevice.Acquire()
|
|
if err := g.dinputDevice.Poll(); err != nil {
|
|
if !errors.Is(err, directInputError(_DIERR_NOTACQUIRED)) && !errors.Is(err, directInputError(_DIERR_INPUTLOST)) {
|
|
return err
|
|
}
|
|
}
|
|
if err := g.dinputDevice.GetDeviceState(uint32(unsafe.Sizeof(state)), unsafe.Pointer(&state)); err != nil {
|
|
if !errors.Is(err, directInputError(_DIERR_NOTACQUIRED)) && !errors.Is(err, directInputError(_DIERR_INPUTLOST)) {
|
|
return err
|
|
}
|
|
disconnected = true
|
|
return nil
|
|
}
|
|
}
|
|
|
|
var ai, bi, hi int
|
|
for _, obj := range g.dinputObjects {
|
|
switch obj.objectType {
|
|
case dinputObjectTypeAxis:
|
|
var v int32
|
|
switch obj.index {
|
|
case 0:
|
|
v = state.lX
|
|
case 1:
|
|
v = state.lY
|
|
case 2:
|
|
v = state.lZ
|
|
case 3:
|
|
v = state.lRx
|
|
case 4:
|
|
v = state.lRy
|
|
case 5:
|
|
v = state.lRz
|
|
}
|
|
g.dinputAxes[ai] = (float64(v) + 0.5) / 32767.5
|
|
ai++
|
|
case dinputObjectTypeSlider:
|
|
v := state.rglSlider[obj.index]
|
|
g.dinputAxes[ai] = (float64(v) + 0.5) / 32767.5
|
|
ai++
|
|
case dinputObjectTypeButton:
|
|
v := (state.rgbButtons[obj.index] & 0x80) != 0
|
|
g.dinputButtons[bi] = v
|
|
bi++
|
|
case dinputObjectTypePOV:
|
|
stateIndex := state.rgdwPOV[obj.index] / (45 * _DI_DEGREES)
|
|
v := hatCentered
|
|
switch stateIndex {
|
|
case 0:
|
|
v = hatUp
|
|
case 1:
|
|
v = hatRightUp
|
|
case 2:
|
|
v = hatRight
|
|
case 3:
|
|
v = hatRightDown
|
|
case 4:
|
|
v = hatDown
|
|
case 5:
|
|
v = hatLeftDown
|
|
case 6:
|
|
v = hatLeft
|
|
case 7:
|
|
v = hatLeftUp
|
|
}
|
|
g.dinputHats[hi] = v
|
|
hi++
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
var state xinputState
|
|
if err := gamepads.xinputGetState(uint32(g.xinputIndex), &state); err != nil {
|
|
if !errors.Is(err, windows.ERROR_DEVICE_NOT_CONNECTED) {
|
|
return err
|
|
}
|
|
disconnected = true
|
|
return nil
|
|
}
|
|
g.xinputState = state
|
|
return nil
|
|
}
|
|
|
|
func (g *nativeGamepad) axisCount() int {
|
|
if g.usesDInput() {
|
|
return len(g.dinputAxes)
|
|
}
|
|
return 6
|
|
}
|
|
|
|
func (g *nativeGamepad) buttonCount() int {
|
|
if g.usesDInput() {
|
|
return len(g.dinputButtons)
|
|
}
|
|
return len(xinputButtons)
|
|
}
|
|
|
|
func (g *nativeGamepad) hatCount() int {
|
|
if g.usesDInput() {
|
|
return len(g.dinputHats)
|
|
}
|
|
return 1
|
|
}
|
|
|
|
func (g *nativeGamepad) axisValue(axis int) float64 {
|
|
if g.usesDInput() {
|
|
if axis < 0 || axis >= len(g.dinputAxes) {
|
|
return 0
|
|
}
|
|
return g.dinputAxes[axis]
|
|
}
|
|
|
|
var v float64
|
|
switch axis {
|
|
case 0:
|
|
v = (float64(g.xinputState.Gamepad.sThumbLX) + 0.5) / 32767.5
|
|
case 1:
|
|
v = -(float64(g.xinputState.Gamepad.sThumbLY) + 0.5) / 32767.5
|
|
case 2:
|
|
v = (float64(g.xinputState.Gamepad.sThumbRX) + 0.5) / 32767.5
|
|
case 3:
|
|
v = -(float64(g.xinputState.Gamepad.sThumbRY) + 0.5) / 32767.5
|
|
case 4:
|
|
v = float64(g.xinputState.Gamepad.bLeftTrigger)/127.5 - 1.0
|
|
case 5:
|
|
v = float64(g.xinputState.Gamepad.bRightTrigger)/127.5 - 1.0
|
|
}
|
|
return v
|
|
}
|
|
|
|
func (g *nativeGamepad) isButtonPressed(button int) bool {
|
|
if g.usesDInput() {
|
|
if button < 0 || button >= len(g.dinputButtons) {
|
|
return false
|
|
}
|
|
return g.dinputButtons[button]
|
|
}
|
|
|
|
if button < 0 || button >= len(xinputButtons) {
|
|
return false
|
|
}
|
|
return g.xinputState.Gamepad.wButtons&xinputButtons[button] != 0
|
|
}
|
|
|
|
func (g *nativeGamepad) buttonValue(button int) float64 {
|
|
panic("gamepad: buttonValue is not implemented")
|
|
}
|
|
|
|
func (g *nativeGamepad) hatState(hat int) int {
|
|
if g.usesDInput() {
|
|
return g.dinputHats[hat]
|
|
}
|
|
|
|
if hat != 0 {
|
|
return 0
|
|
}
|
|
var v int
|
|
if g.xinputState.Gamepad.wButtons&_XINPUT_GAMEPAD_DPAD_UP != 0 {
|
|
v |= hatUp
|
|
}
|
|
if g.xinputState.Gamepad.wButtons&_XINPUT_GAMEPAD_DPAD_RIGHT != 0 {
|
|
v |= hatRight
|
|
}
|
|
if g.xinputState.Gamepad.wButtons&_XINPUT_GAMEPAD_DPAD_DOWN != 0 {
|
|
v |= hatDown
|
|
}
|
|
if g.xinputState.Gamepad.wButtons&_XINPUT_GAMEPAD_DPAD_LEFT != 0 {
|
|
v |= hatLeft
|
|
}
|
|
return v
|
|
}
|
|
|
|
func (g *nativeGamepad) vibrate(duration time.Duration, strongMagnitude float64, weakMagnitude float64) {
|
|
// TODO: Implement this (#1452)
|
|
}
|