From 520a30f3c7c22412cd2ea1c0e892aab7e36b95e1 Mon Sep 17 00:00:00 2001
From: Hajime Hoshi <hajimehoshi@gmail.com>
Date: Fri, 15 Jul 2022 15:12:54 +0900
Subject: [PATCH] internal/gamepad: bug fix: memory leak on Xbox

Updates #2084
---
 internal/gamepad/api_xbox_windows.go     | 4 ++++
 internal/gamepad/gamepad_xbox_windows.go | 1 +
 2 files changed, 5 insertions(+)

diff --git a/internal/gamepad/api_xbox_windows.go b/internal/gamepad/api_xbox_windows.go
index e33f6925e..581b33826 100644
--- a/internal/gamepad/api_xbox_windows.go
+++ b/internal/gamepad/api_xbox_windows.go
@@ -246,3 +246,7 @@ func (i *_IGameInputReading) GetGamepadState() (_GameInputGamepadState, bool) {
 	r, _, _ := syscall.Syscall(i.vtbl.GetGamepadState, 2, uintptr(unsafe.Pointer(i)), uintptr(unsafe.Pointer(&state)), 0)
 	return state, int32(r) != 0
 }
+
+func (i *_IGameInputReading) Release() {
+	syscall.Syscall(i.vtbl.Release, 1, uintptr(unsafe.Pointer(i)), 0, 0)
+}
diff --git a/internal/gamepad/gamepad_xbox_windows.go b/internal/gamepad/gamepad_xbox_windows.go
index 10ef6ccaa..2aa04ccdd 100644
--- a/internal/gamepad/gamepad_xbox_windows.go
+++ b/internal/gamepad/gamepad_xbox_windows.go
@@ -131,6 +131,7 @@ func (n *nativeGamepadXbox) update(gamepads *gamepads) error {
 	if err != nil {
 		return err
 	}
+	defer r.Release()
 
 	state, ok := r.GetGamepadState()
 	if !ok {