fishbowl/engine/include/fishbone/sound.h

#ifndef __FISHBONE_SOUND_H__
#define __FISHBONE_SOUND_H__

#define FB_SOUND_DECL(prefix) \
	class prefix##SoundLoader; \
	class prefix##Sound

#define FB_SOUND_DEF(prefix) \
	class prefix##SoundLoader : public SoundLoader { \
	    public: \
		Sound* open(Mixer* mixer, void* buffer, size_t size); \
		int    read(Sound* sound, short* buffer, size_t frames); \
		void   seek(Sound* sound, size_t pos); \
	}; \
\
	class prefix##Sound : public Sound { \
	    public: \
		prefix##Sound(Mixer* mixer, prefix##SoundLoader* loader, struct Sound::Impl* impl) \
		    : Sound(mixer, loader, impl){}; \
		~prefix##Sound(); \
	}

#define FB_SOUND_LOADERS \
	LOADER(XMP) \
	LOADER(Vorbis) \
	LOADER(MP3) \
	LOADER(FLAC) \
	LOADER(WAV)

namespace fishbone {
	class SoundDriver;
	class SoundLoader;
	class Sound;

#define LOADER(X) FB_SOUND_DECL(X);
	FB_SOUND_LOADERS
#undef LOADER
}; // namespace fishbone

#include <fishbone/machdep.h>
#include <fishbone/mixer.h>

namespace fishbone {
	class SoundDriver {
		struct Impl;
		Impl* impl;

	    public:
		SoundDriver();
		~SoundDriver();

		fishbone::Mixer mixer;
	};

	class SoundLoader {
	    public:
		SoundLoader();
		~SoundLoader();

		virtual Sound* open(Mixer* mixer, void* buffer, size_t size);
		virtual int    read(Sound* sound, short* buffer, size_t frames);
		virtual void   seek(Sound* sound, size_t pos);
	};

	class Sound {
	    public:
		struct Impl;
		Impl* impl;

	    private:
		SoundLoader* loader;
		Mixer*	     mixer;

	    protected:
		bool loop;
		bool paused;

	    public:
		Sound(Mixer* mixer, SoundLoader* loader, struct Impl* impl);

		int  read(short* buffer, size_t frames);
		void seek(size_t pos);
		void resume();
		void pause();
		void pauseNoLock(); /* do NOT use this! */
		bool isPaused();
		void setLoop(bool v);
		bool isLoop();

		int   rate;
		int   channels;
		float volume;
		bool  is3d;
		float position[3];
	};

#define LOADER(X) FB_SOUND_DEF(X);
	FB_SOUND_LOADERS
#undef LOADER
}; // namespace fishbone

#endif