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internal/gamepad: simplify the implementation by making the APIs concurrent-unsafe

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This commit is contained in:
Hajime Hoshi 2022-01-29 02:07:11 +09:00
parent 5edfd1b743
commit 71e17efd80
3 changed files with 31 additions and 43 deletions
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31
internal/gamepad/gamepad.go
View File

@ -39,7 +39,6 @@ const (
type gamepads struct {
gamepads []*Gamepad
m sync.Mutex
nativeGamepads
}
@ -51,14 +50,17 @@ func init() {
theGamepads.nativeGamepads.gamepads = &theGamepads
}
// AppendGamepadIDs must be called on the main thread.
func AppendGamepadIDs(ids []driver.GamepadID) []driver.GamepadID {
return theGamepads.appendGamepadIDs(ids)
}
// Update must be called on the main thread.
func Update() {
theGamepads.update()
}
// Get must be called on the main thread.
func Get(id driver.GamepadID) *Gamepad {
return theGamepads.get(id)
}
@ -73,9 +75,6 @@ func (g *gamepads) appendGamepadIDs(ids []driver.GamepadID) []driver.GamepadID {
}
func (g *gamepads) update() {
g.m.Lock()
defer g.m.Unlock()
g.nativeGamepads.update()
for _, gp := range g.gamepads {
if gp != nil {
@ -85,12 +84,6 @@ func (g *gamepads) update() {
}
func (g *gamepads) get(id driver.GamepadID) *Gamepad {
g.m.Lock()
defer g.m.Unlock()
return g.getImpl(id)
}
func (g *gamepads) getImpl(id driver.GamepadID) *Gamepad {
if id < 0 || int(id) >= len(g.gamepads) {
return nil
}
@ -98,12 +91,6 @@ func (g *gamepads) getImpl(id driver.GamepadID) *Gamepad {
}
func (g *gamepads) find(cond func(*Gamepad) bool) *Gamepad {
g.m.Lock()
defer g.m.Unlock()
return g.findImpl(cond)
}
func (g *gamepads) findImpl(cond func(*Gamepad) bool) *Gamepad {
for _, gp := range g.gamepads {
if gp == nil {
continue
@ -116,12 +103,6 @@ func (g *gamepads) findImpl(cond func(*Gamepad) bool) *Gamepad {
}
func (g *gamepads) add(name, sdlID string) *Gamepad {
g.m.Lock()
defer g.m.Unlock()
return g.addImpl(name, sdlID)
}
func (g *gamepads) addImpl(name, sdlID string) *Gamepad {
for i, gp := range g.gamepads {
if gp == nil {
gp := &Gamepad{
@ -142,12 +123,6 @@ func (g *gamepads) addImpl(name, sdlID string) *Gamepad {
}
func (g *gamepads) remove(cond func(*Gamepad) bool) {
g.m.Lock()
defer g.m.Unlock()
g.removeImpl(cond)
}
func (g *gamepads) removeImpl(cond func(*Gamepad) bool) {
for i, gp := range g.gamepads {
if gp == nil {
continue

6
internal/gamepad/gamepad_js.go
View File

@ -67,7 +67,7 @@ func (g *nativeGamepads) update() {
g.indices[index] = struct{}{}
// The gamepad is not registered yet, register this.
gamepad := g.gamepads.findImpl(func(gamepad *Gamepad) bool {
gamepad := g.gamepads.find(func(gamepad *Gamepad) bool {
return index == gamepad.index
})
if gamepad == nil {
@ -78,7 +78,7 @@ func (g *nativeGamepads) update() {
var sdlID [16]byte
copy(sdlID[:], []byte(name))
gamepad = g.gamepads.addImpl(name, hex.EncodeToString(sdlID[:]))
gamepad = g.gamepads.add(name, hex.EncodeToString(sdlID[:]))
gamepad.index = index
gamepad.mapping = gp.Get("mapping").String()
}
@ -86,7 +86,7 @@ func (g *nativeGamepads) update() {
}
// Remove an unused gamepads.
g.gamepads.removeImpl(func(gamepad *Gamepad) bool {
g.gamepads.remove(func(gamepad *Gamepad) bool {
_, ok := g.indices[gamepad.index]
return !ok
})

37
internal/uidriver/glfw/gamepad_native.go
View File

@ -26,16 +26,29 @@ import (
type nativeGamepads struct{}
// updateGamepads must be called on the main thread.
func (i *Input) updateGamepads() {
gamepadpkg.Update()
}
func (i *Input) AppendGamepadIDs(gamepadIDs []driver.GamepadID) []driver.GamepadID {
return gamepadpkg.AppendGamepadIDs(gamepadIDs)
var gs []driver.GamepadID
i.ui.t.Call(func() {
gs = gamepadpkg.AppendGamepadIDs(gamepadIDs)
})
return gs
}
func (i *Input) gamepad(id driver.GamepadID) *gamepadpkg.Gamepad {
var g *gamepadpkg.Gamepad
i.ui.t.Call(func() {
g = gamepadpkg.Get(id)
})
return g
}
func (i *Input) GamepadSDLID(id driver.GamepadID) string {
g := gamepadpkg.Get(id)
g := i.gamepad(id)
if g == nil {
return ""
}
@ -43,7 +56,7 @@ func (i *Input) GamepadSDLID(id driver.GamepadID) string {
}
func (i *Input) GamepadName(id driver.GamepadID) string {
g := gamepadpkg.Get(id)
g := i.gamepad(id)
if g == nil {
return ""
}
@ -51,7 +64,7 @@ func (i *Input) GamepadName(id driver.GamepadID) string {
}
func (i *Input) GamepadAxisNum(id driver.GamepadID) int {
g := gamepadpkg.Get(id)
g := i.gamepad(id)
if g == nil {
return 0
}
@ -59,7 +72,7 @@ func (i *Input) GamepadAxisNum(id driver.GamepadID) int {
}
func (i *Input) GamepadAxisValue(id driver.GamepadID, axis int) float64 {
g := gamepadpkg.Get(id)
g := i.gamepad(id)
if g == nil {
return 0
}
@ -67,7 +80,7 @@ func (i *Input) GamepadAxisValue(id driver.GamepadID, axis int) float64 {
}
func (i *Input) GamepadButtonNum(id driver.GamepadID) int {
g := gamepadpkg.Get(id)
g := i.gamepad(id)
if g == nil {
return 0
}
@ -77,7 +90,7 @@ func (i *Input) GamepadButtonNum(id driver.GamepadID) int {
}
func (i *Input) IsGamepadButtonPressed(id driver.GamepadID, button driver.GamepadButton) bool {
g := gamepadpkg.Get(id)
g := i.gamepad(id)
if g == nil {
return false
}
@ -97,7 +110,7 @@ func (i *Input) IsGamepadButtonPressed(id driver.GamepadID, button driver.Gamepa
}
func (i *Input) IsStandardGamepadLayoutAvailable(id driver.GamepadID) bool {
g := gamepadpkg.Get(id)
g := i.gamepad(id)
if g == nil {
return false
}
@ -105,7 +118,7 @@ func (i *Input) IsStandardGamepadLayoutAvailable(id driver.GamepadID) bool {
}
func (i *Input) StandardGamepadAxisValue(id driver.GamepadID, axis driver.StandardGamepadAxis) float64 {
g := gamepadpkg.Get(id)
g := i.gamepad(id)
if g == nil {
return 0
}
@ -113,7 +126,7 @@ func (i *Input) StandardGamepadAxisValue(id driver.GamepadID, axis driver.Standa
}
func (i *Input) StandardGamepadButtonValue(id driver.GamepadID, button driver.StandardGamepadButton) float64 {
g := gamepadpkg.Get(id)
g := i.gamepad(id)
if g == nil {
return 0
}
@ -121,7 +134,7 @@ func (i *Input) StandardGamepadButtonValue(id driver.GamepadID, button driver.St
}
func (i *Input) IsStandardGamepadButtonPressed(id driver.GamepadID, button driver.StandardGamepadButton) bool {
g := gamepadpkg.Get(id)
g := i.gamepad(id)
if g == nil {
return false
}
@ -129,7 +142,7 @@ func (i *Input) IsStandardGamepadButtonPressed(id driver.GamepadID, button drive
}
func (i *Input) VibrateGamepad(id driver.GamepadID, duration time.Duration, strongMagnitude float64, weakMagnitude float64) {
g := gamepadpkg.Get(id)
g := i.gamepad(id)
if g == nil {
return
}