Make overflow signed

giongto35 · Apr 23, 2024 · 7f51f46 · 7f51f46
1 parent b82b354
commit 7f51f46
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/pkg/worker/caged/libretro/nanoarch/input.go b/pkg/worker/caged/libretro/nanoarch/input.go
@@ -131,8 +131,8 @@ func (ms *MouseState) ShiftPos(data []byte) {
 		return
 	}
 	dxy := binary.BigEndian.Uint32(data)
-	ms.dx.Add(int32(uint16(dxy >> 16)))
-	ms.dy.Add(int32(uint16(dxy)))
+	ms.dx.Add(int32(int16(dxy >> 16)))
+	ms.dy.Add(int32(int16(dxy)))
 }
 
 func (ms *MouseState) PopX() C.int16_t { return C.int16_t(ms.dx.Swap(0)) }

diff --git a/pkg/worker/caged/libretro/nanoarch/input_test.go b/pkg/worker/caged/libretro/nanoarch/input_test.go
@@ -30,7 +30,7 @@ func TestMousePos(t *testing.T) {
 		ry   int16
 		b    func(dx, dy int16) []byte
 	}{
-		{name: "normal", dx: -1234, dy: 5678, rx: -1234, ry: 5678, b: func(dx, dy int16) []byte {
+		{name: "normal", dx: -10123, dy: 5678, rx: -10123, ry: 5678, b: func(dx, dy int16) []byte {
 			data := []byte{0, 0, 0, 0}
 			binary.BigEndian.PutUint16(data, uint16(dx))
 			binary.BigEndian.PutUint16(data[2:], uint16(dy))