audio_output/amem.c: win32 semaphore fixes.

Make sure the proper object handle is given to windows semaphore primitives.

modules/audio_output/amem.c

@@ -152,7 +152,7 @@ static void ExitSharedMem(aout_instance_t *);
 static void amem_sem_init(vlc_sem_t *sem, unsigned value)
 {
 #if defined(_WIN32_WINNT) || defined(WIN32)
-    sem = CreateSemaphore(NULL /*LPSECURITY_ATTRIBUTES*/, 1, 1, NULL);
+    sem = (vlc_sem_t *) CreateSemaphore(NULL /*LPSECURITY_ATTRIBUTES*/, 1, 1, NULL);
     if (sem == NULL)
         abort();
 #else
@@ -168,7 +168,7 @@ static int amem_sem_trywait(vlc_sem_t *sem)
     do
     {
 #if defined(_WIN32_WINNT) || defined(WIN32)
-        DWORD wait = WaitForSingleObject(sem, 0L);
+        DWORD wait = WaitForSingleObject((HANDLE) *sem, 0L);
         switch(wait)
         {
             case WAIT_OBJECT_0:
@@ -197,7 +197,7 @@ static int amem_sem_trywait(vlc_sem_t *sem)
 static void amem_sem_wait(vlc_sem_t *sem)
 {
 #if defined(_WIN32_WINNT) || defined(WIN32)
-    DWORD wait = WaitForSingleObject(sem, 0L);
+    DWORD wait = WaitForSingleObject((HANDLE) *sem, 0L);
     assert(wait == WAIT_OBJECT_0);
 #else
     vlc_sem_wait(sem);
@@ -207,7 +207,7 @@ static void amem_sem_wait(vlc_sem_t *sem)
 static void amem_sem_post(vlc_sem_t *sem)
 {
 #if defined(_WIN32_WINNT) || defined(WIN32)
-    BOOL ret = ReleaseSemaphore(sem, 1, NULL);
+    BOOL ret = ReleaseSemaphore((HANDLE) *sem, 1, NULL);
 #else
     int ret = vlc_sem_post(sem);
 #endif
@@ -217,7 +217,7 @@ static void amem_sem_post(vlc_sem_t *sem)
 static void amem_sem_destroy(vlc_sem_t *sem)
 {
 #if defined(_WIN32_WINNT) || defined(WIN32)
-    BOOL ret = CloseHandle(sem);
+    BOOL ret = CloseHandle((HANDLE) *sem);
     assert(ret >= 0);
 #else
     vlc_sem_destroy(sem);