Release left over filters on close

OpenAL32/Include/alFilter.h

@@ -39,6 +39,8 @@ AL_API ALvoid AL_APIENTRY alGetFilteriv(ALuint filter, ALenum param, ALint *piVa
 AL_API ALvoid AL_APIENTRY alGetFilterf(ALuint filter, ALenum param, ALfloat *pflValue);
 AL_API ALvoid AL_APIENTRY alGetFilterfv(ALuint filter, ALenum param, ALfloat *pflValues);
 
+ALvoid ReleaseALFilters(ALvoid);
+
 #ifdef __cplusplus
 }
 #endif

OpenAL32/OpenAL32.c

@@ -20,6 +20,7 @@
 
 #include "alMain.h"
 #include "alBuffer.h"
+#include "alFilter.h"
 #include "alThunk.h"
 
 CRITICAL_SECTION g_mutex;
@@ -55,6 +56,7 @@ static void my_deinit()
     once = AL_TRUE;
 
     ReleaseALBuffers();
+    ReleaseALFilters();
     FreeALConfig();
     ALTHUNK_EXIT();
     DeleteCriticalSection(&g_mutex);

OpenAL32/alFilter.c

@@ -342,6 +342,26 @@ AL_API ALvoid AL_APIENTRY alGetFilterfv(ALuint filter, ALenum param, ALfloat *pf
 }
 
 
+ALvoid ReleaseALFilters(ALvoid)
+{
+#ifdef _DEBUG
+    if(g_FilterCount > 0)
+        AL_PRINT("exit() %d Filter(s) NOT deleted\n", g_FilterCount);
+#endif
+
+    while(g_FilterList)
+    {
+        ALfilter *temp = g_FilterList;
+        g_FilterList = g_FilterList->next;
+
+        // Release Buffer structure
+        memset(temp, 0, sizeof(ALfilter));
+        free(temp);
+    }
+    g_FilterCount = 0;
+}
+
+
 static void InitFilterParams(ALfilter *filter, ALenum type)
 {
     filter->type = type;