Add a base MidiSynth struct

1 files changed, 64 insertions, 0 deletions

diff --git a/OpenAL32/Include/alMidi.h b/OpenAL32/Include/alMidi.h
new file mode 100644
index 00000000..b6504706
--- /dev/null
+++ b/OpenAL32/Include/alMidi.h
@@ -0,0 +1,64 @@
+#ifndef ALMIDI_H
+#define ALMIDI_H
+
+#include "alMain.h"
+#include "evtqueue.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct MidiSynthVtable;
+
+typedef struct MidiSynth {
+    EvtQueue EventQueue;
+
+    ALuint64 LastEvtTime;
+    ALuint64 NextEvtTime;
+    ALdouble SamplesSinceLast;
+    ALdouble SamplesToNext;
+
+    ALuint SampleRate;
+    ALdouble SamplesPerTick;
+
+    volatile ALenum State;
+
+    char *FontName;
+
+    const struct MidiSynthVtable *vtbl;
+} MidiSynth;
+
+
+struct MidiSynthVtable {
+    void (*const Destruct)(MidiSynth *self);
+
+    void (*const setState)(MidiSynth *self, ALenum state);
+    void (*const update)(MidiSynth *self, ALCdevice *device);
+    void (*const process)(MidiSynth *self, ALuint samples, ALfloat (*restrict DryBuffer)[BUFFERSIZE]);
+
+    void (*const Delete)(MidiSynth *self);
+};
+
+#define DEFINE_MIDISYNTH_VTABLE(T)                                            \
+DECLARE_THUNK(T, MidiSynth, void, Destruct)                                   \
+DECLARE_THUNK1(T, MidiSynth, void, setState, ALenum)                          \
+DECLARE_THUNK1(T, MidiSynth, void, update, ALCdevice*)                        \
+DECLARE_THUNK2(T, MidiSynth, void, process, ALuint, ALfloatBUFFERSIZE*restrict) \
+DECLARE_THUNK(T, MidiSynth, void, Delete)                                     \
+                                                                              \
+static const struct MidiSynthVtable T##_MidiSynth_vtable = {                  \
+    T##_MidiSynth_Destruct,                                                   \
+                                                                              \
+    T##_MidiSynth_setState,                                                   \
+    T##_MidiSynth_update,                                                     \
+    T##_MidiSynth_process,                                                    \
+                                                                              \
+    T##_MidiSynth_Delete,                                                     \
+}
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ALMIDI_H */