1 files changed, 38 insertions, 0 deletions
diff --git a/src/audio/backend/miniaudio_backend.h b/src/audio/backend/miniaudio_backend.h
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+++ b/src/audio/backend/miniaudio_backend.h
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+// This file is part of the 64k demo project.
+// It implements the production audio backend using miniaudio.
+// This is the default backend for the final build.
+
+#pragma once
+
+#include "../audio_backend.h"
+#include "miniaudio.h"
+
+// Production audio backend using miniaudio library
+// Manages real hardware audio device and playback
+class MiniaudioBackend : public AudioBackend {
+ public:
+  MiniaudioBackend();
+  ~MiniaudioBackend() override;
+
+  void init() override;
+  void start() override;
+  void shutdown() override;
+  float get_realtime_peak() override;
+
+  // Get the underlying miniaudio device (for internal use)
+  ma_device* get_device() {
+    return &device_;
+  }
+
+ private:
+  ma_device device_;
+  bool initialized_;
+
+  // Real-time peak measured at actual playback time (not pre-buffer)
+  // Updated in audio_callback when samples are read from ring buffer
+  static volatile float realtime_peak_;
+
+  // Static callback required by miniaudio C API
+  static void audio_callback(ma_device* pDevice, void* pOutput,
+                             const void* pInput, ma_uint32 frameCount);
+};