align the buffer 2

src/FxEngine/zbuffer.c

@@ -35,7 +35,7 @@ static void* buffer_malloc(uint32_t size)
     ptr[-1] = mem;
     return ptr;
 }
-void aligned_free(void *ptr) 
+void buffer_free(void *ptr) 
 {
     free(((void**)ptr)[-1]);
 }
@@ -44,9 +44,8 @@ void FE_zbuffer_clear()
 {
     if (address==0)
     {
-        address = (int32_t*)malloc(size_char+3);
-        address/=4;
-        address*=4;
+        address = buffer_malloc(size_char);
+        
         if (address==0) // cas de figure où il n'y a plus assez de RAM
         {
             dclear(C_WHITE);