started work on the CHIP-8 interpreter

BuzzerSDL.hpp

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <vector>
+#include <SDL2/SDL_audio.h>
+
+#include "Peripherals.hpp"
+
+class BuzzerSDL : public chocochip8::Buzzer {
+public:
+  using sample_t = Sint16;
+
+  BuzzerSDL(unsigned frequency);
+  ~BuzzerSDL();
+
+  void on() override;
+  void off() override;
+
+private:
+  static void SDLCALL audioCallback(void *userdata, Uint8 *stream, int len);
+  void copySamples(Uint8 *stream, int len);
+
+private:
+  std::vector<sample_t> mSamples;
+  SDL_AudioDeviceID mAudioDevice;
+  size_t miCurrentSample;
+};