1 files changed, 62 insertions, 0 deletions
diff --git a/Alc/backends/base.h b/Alc/backends/base.h
new file mode 100644
index 00000000..9cc0d66b
--- /dev/null
+++ b/Alc/backends/base.h
@@ -0,0 +1,62 @@
+#ifndef AL_BACKENDS_BASE_H
+#define AL_BACKENDS_BASE_H
+
+#include "alMain.h"
+
+
+struct ALCbackendVtable;
+
+typedef struct ALCbackend {
+    const struct ALCbackendVtable *vtbl;
+
+    ALCdevice *mDevice;
+} ALCbackend;
+
+struct ALCbackendVtable {
+    void (*const Destruct)(ALCbackend *state);
+
+    ALCenum (*const open)(ALCbackend*, const ALCchar*);
+    void (*const close)(ALCbackend*);
+
+    ALCboolean (*reset)(ALCbackend*);
+    ALCboolean (*start)(ALCbackend*);
+    void (*stop)(ALCbackend*);
+
+    ALint64 (*getLatency)(ALCbackend*);
+
+    void (*const Delete)(ALCbackend *state);
+};
+
+#define DEFINE_ALCBACKEND_VTABLE(T)                                           \
+static void T##_ALCbackend_Destruct(ALCbackend *obj)                          \
+{ T##_Destruct(STATIC_UPCAST(T, ALCbackend, obj)); }                          \
+static ALCenum T##_ALCbackend_open(ALCbackend *obj, const ALCchar *p1)        \
+{ return T##_open(STATIC_UPCAST(T, ALCbackend, obj), p1); }                   \
+static void T##_ALCbackend_close(ALCbackend *obj)                             \
+{ T##_close(STATIC_UPCAST(T, ALCbackend, obj)); }                             \
+static ALCboolean T##_ALCbackend_reset(ALCbackend *obj)                       \
+{ return T##_reset(STATIC_UPCAST(T, ALCbackend, obj)); }                      \
+static ALCboolean T##_ALCbackend_start(ALCbackend *obj)                       \
+{ return T##_start(STATIC_UPCAST(T, ALCbackend, obj)); }                      \
+static void T##_ALCbackend_stop(ALCbackend *obj)                              \
+{ T##_stop(STATIC_UPCAST(T, ALCbackend, obj)); }                              \
+static ALint64 T##_ALCbackend_getLatency(ALCbackend *obj)                     \
+{ return T##_getLatency(STATIC_UPCAST(T, ALCbackend, obj)); }                 \
+static void T##_ALCbackend_Delete(ALCbackend *obj)                            \
+{ T##_Delete(STATIC_UPCAST(T, ALCbackend, obj)); }                            \
+                                                                              \
+static const struct ALCbackendVtable T##_ALCbackend_vtable = {                \
+    T##_ALCbackend_Destruct,                                                  \
+                                                                              \
+    T##_ALCbackend_open,                                                      \
+    T##_ALCbackend_close,                                                     \
+    T##_ALCbackend_reset,                                                     \
+    T##_ALCbackend_start,                                                     \
+    T##_ALCbackend_stop,                                                      \
+    T##_ALCbackend_getLatency,                                                \
+                                                                              \
+    T##_ALCbackend_Delete,                                                    \
+}
+
+
+#endif /* AL_BACKENDS_BASE_H */