Rémi Bernon : xinput: Fix rumble amount value rounding.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: d636cc18ba53ed7ca798c919dd56b0d5dabee9fa
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=d636cc18ba53ed7ca798c919d...

Author: Rémi Bernon <rbernon(a)codeweavers.com>
Date:   Tue May 28 16:41:20 2019 +0200

xinput: Fix rumble amount value rounding.

XINPUT_VIBRATION structure documentation says that wLeftMotorSpeed and
wRightMotorSpeed can range from 0 to 65535. The values were
incorrectly divided by 255 in HID_set_state, which made the value
range overflow one byte.

Signed-off-by: Rémi Bernon <rbernon(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/xinput1_3/hid.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/xinput1_3/hid.c b/dlls/xinput1_3/hid.c
index 34e4e51..dc5601c 100644
--- a/dlls/xinput1_3/hid.c
+++ b/dlls/xinput1_3/hid.c
@@ -469,8 +469,8 @@ DWORD HID_set_state(xinput_controller* device, XINPUT_VIBRATION* state)
             report.report = 0;
             report.pad1[0] = 0x8;
             report.pad1[1] = 0x0;
-            report.left = (BYTE)(state->wLeftMotorSpeed / 255);
-            report.right = (BYTE)(state->wRightMotorSpeed / 255);
+            report.left = (BYTE)(state->wLeftMotorSpeed / 256);
+            report.right = (BYTE)(state->wRightMotorSpeed / 256);
             memset(&report.pad2, 0, sizeof(report.pad2));
 
             EnterCriticalSection(&private->crit);