01/01: [WINMM] Sync wine commit ebae298 as a fix for CORE-15336 (#1031)

[Baruch Rutman]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=97150ce9dd96412036e64a...

commit 97150ce9dd96412036e64a1aa74ccfd2ca9c1805
Author:     Baruch Rutman [e-mail]
AuthorDate: Wed Nov 14 13:32:55 2018 +0200
Commit:     Hermès BÉLUSCA - MAÏTO [e-mail]
CommitDate: Wed Nov 14 12:32:55 2018 +0100

[WINMM] Sync wine commit ebae298 as a fix for CORE-15336 (#1031)

Reduce CPU usage by only attempting once to load the default joystick driver.
    Fix for CORE-15336

Imported wine commit ebae298
    https://github.com/wine-mirror/wine/commit/ebae298aa4d2711fef35d4ac60c601243...
    https://www.winehq.org/pipermail/wine-devel/2018-November/134767.html
---
 dll/win32/winmm/joystick.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/dll/win32/winmm/joystick.c b/dll/win32/winmm/joystick.c
index ed6054bfbf..92bd48d399 100644
--- a/dll/win32/winmm/joystick.c
+++ b/dll/win32/winmm/joystick.c
@@ -55,12 +55,21 @@ static	WINE_JOYSTICK	JOY_Sticks[MAXJOYSTICK];
  */
 static	BOOL JOY_LoadDriver(DWORD dwJoyID)
 {
-    if (dwJoyID >= MAXJOYSTICK)
+    static BOOL winejoystick_missing = FALSE;
+
+    if (dwJoyID >= MAXJOYSTICK || winejoystick_missing)
    return FALSE;
     if (JOY_Sticks[dwJoyID].hDriver)
    return TRUE;

JOY_Sticks[dwJoyID].hDriver = OpenDriverA("winejoystick.drv", 0, dwJoyID);
+
+    if (!JOY_Sticks[dwJoyID].hDriver)
+    {
+        /* The default driver is missing, don't attempt to load it again */
+        winejoystick_missing = TRUE;
+    }
+
     return (JOY_Sticks[dwJoyID].hDriver != 0);
 }