audio rework

engine/inc/audio/audio_song.hpp

@@ -0,0 +1,90 @@
+/*
+# _____        ____   ___
+#   |     \/   ____| |___|
+#   |     |   |   \  |   |
+#-----------------------------------------------------------------------
+# Copyright 2022-2022, Tyra - https://github.com/h4570/tyrav2
+# Licensed under Apache License 2.0
+# Sandro Sobczyński <sandro.sobczynski@gmail.com>
+# Wellinator Carvalho <wellcoj@gmail.com>
+*/
+
+#pragma once
+
+#include "./audio_listener_ref.hpp"
+#include <audsrv.h>
+#include <string>
+#include <vector>
+#include <kernel.h>
+
+namespace Tyra {
+
+/** Class responsible for background audio playing. */
+class AudioSong {
+ public:
+  AudioSong();
+  ~AudioSong();
+
+  void init();
+
+  bool inLoop;
+
+  /**
+   * Load 24bit 22kHz Stereo WAV.
+   * Can be used multiple times for song switching.
+   * @param t_path Example: "host:song.wav" or "host:folder/song.wav"
+   */
+  void load(const char* t_path);
+  void load(const std::string& t_path);
+
+  void play();
+
+  void stop();
+
+  const bool& isPlaying() const;
+
+  const bool& isLoaded() const;
+
+  const u8& getVolume() const;
+
+  /**
+   * Set song volume.
+   * @param t_vol Value 0-100
+   */
+  void setVolume(const u8& t_vol);
+
+  /**
+   * If you want to synchronize some actions with
+   * background song, add audio listener.
+   * @returns Listener id.
+   */
+  u32 addListener(AudioListener* t_listener);
+
+  /** Remove song listener. */
+  void removeListener(const u32& t_id);
+
+  std::size_t getListenersCount() const;
+
+  void work();
+
+ private:
+  bool songLoaded, songPlaying, songFinished;
+  u8 tyraVolume, audsrvVolume;
+  FILE* wav;
+  audsrv_fmt_t format;
+  std::vector<AudioListenerRef*> songListeners;
+
+  ee_sema_t sema;
+  s32 fillbufferSema;
+  static const u16 chunkSize;
+  char* chunk;
+  s32 chunkReadStatus;
+
+  void initSema();
+  void initAUDSRV();
+  void setSongFormat();
+  void unloadSong();
+  void rewindSongToStart();
+};
+
+}  // namespace Tyra