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internal/glfw: Bug fix: Crash after disconnecting a gamepad on Windows (Wine)

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This commit is contained in:
Hajime Hoshi 2021-07-21 17:50:37 +09:00
parent d7bedd165a
commit 50320eeb5b
1 changed files with 30 additions and 0 deletions
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30
internal/glfw/glfw_windows.go
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@ -338,6 +338,12 @@ func CreateWindow(width, height int, title string, monitor *Monitor, share *Wind
func (j Joystick) GetGUID() string {
ptr := glfwDLL.call("glfwGetJoystickGUID", uintptr(j))
panicError()
// ptr can be nil after disconnecting the joystick.
if ptr == 0 {
return ""
}
var backed [256]byte
as := backed[:0]
for i := int32(0); ; i++ {
@ -355,6 +361,12 @@ func (j Joystick) GetGUID() string {
func (j Joystick) GetName() string {
ptr := glfwDLL.call("glfwGetJoystickName", uintptr(j))
panicError()
// ptr can be nil after disconnecting the joystick.
if ptr == 0 {
return ""
}
var backed [256]byte
as := backed[:0]
for i := int32(0); ; i++ {
@ -373,6 +385,12 @@ func (j Joystick) GetAxes() []float32 {
var l int32
ptr := glfwDLL.call("glfwGetJoystickAxes", uintptr(j), uintptr(unsafe.Pointer(&l)))
panicError()
// ptr can be nil after disconnecting the joystick.
if ptr == 0 {
return nil
}
as := make([]float32, l)
for i := int32(0); i < l; i++ {
as[i] = *(*float32)(unsafe.Pointer(ptr))
@ -385,6 +403,12 @@ func (j Joystick) GetButtons() []byte {
var l int32
ptr := glfwDLL.call("glfwGetJoystickButtons", uintptr(j), uintptr(unsafe.Pointer(&l)))
panicError()
// ptr can be nil after disconnecting the joystick.
if ptr == 0 {
return nil
}
bs := make([]byte, l)
for i := int32(0); i < l; i++ {
bs[i] = *(*byte)(unsafe.Pointer(ptr))
@ -397,6 +421,12 @@ func (j Joystick) GetHats() []JoystickHatState {
var l int32
ptr := glfwDLL.call("glfwGetJoystickHats", uintptr(j), uintptr(unsafe.Pointer(&l)))
panicError()
// ptr can be nil after disconnecting the joystick.
if ptr == 0 {
return nil
}
hats := make([]JoystickHatState, l)
for i := int32(0); i < l; i++ {
hats[i] = *(*JoystickHatState)(unsafe.Pointer(ptr))