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#ifndef NULLSOFT_OUTH
#define NULLSOFT_OUTH
#include <windows.h>
#include <stddef.h>
// ids:
// waveout: 32
// gapless: 64
// xfade: 63
// disk: 33
// dsound: 38
// NULL: 65
// mm2: 69

#if (_MSC_VER <= 1200)
typedef int intptr_t;
#endif

#define OUT_VER 0x10

typedef struct 
{
        int version;                            // module version (OUT_VER)
        char *description;                      // description of module, with version string
        intptr_t id;                                            // module id. each input module gets its own. non-nullsoft modules should
                                                                // be >= 65536. 

        HWND hMainWindow;                       // winamp's main window (filled in by winamp)
        HINSTANCE hDllInstance;         // DLL instance handle (filled in by winamp)

        void (*Config)(HWND hwndParent); // configuration dialog 
        void (*About)(HWND hwndParent);  // about dialog

        void (*Init)();                         // called when loaded
        void (*Quit)();                         // called when unloaded

        int (*Open)(int samplerate, int numchannels, int bitspersamp, int bufferlenms, int prebufferms); 
                                        // returns >=0 on success, <0 on failure

                                        // NOTENOTENOTE: bufferlenms and prebufferms are ignored in most if not all output plug-ins. 
                                        //    ... so don't expect the max latency returned to be what you asked for.
                                        // returns max latency in ms (0 for diskwriters, etc)
                                        // bufferlenms and prebufferms must be in ms. 0 to use defaults. 
                                        // prebufferms must be <= bufferlenms
                                        // pass bufferlenms==-666 to tell the output plugin that it's clock is going to be used to sync video
                                        //   out_ds turns off silence-eating when -666 is passed

        void (*Close)();        // close the ol' output device.

        int (*Write)(char *buf, int len);       
                                        // 0 on success. Len == bytes to write (<= 8192 always). buf is straight audio data. 
                                        // 1 returns not able to write (yet). Non-blocking, always.

        int (*CanWrite)();      // returns number of bytes possible to write at a given time. 
                                                // Never will decrease unless you call Write (or Close, heh)

        int (*IsPlaying)(); // non0 if output is still going or if data in buffers waiting to be
                                                // written (i.e. closing while IsPlaying() returns 1 would truncate the song

        int (*Pause)(int pause); // returns previous pause state

        void (*SetVolume)(int volume); // volume is 0-255
        void (*SetPan)(int pan); // pan is -128 to 128

        void (*Flush)(int t);   // flushes buffers and restarts output at time t (in ms) 
                                                        // (used for seeking)

        int (*GetOutputTime)(); // returns played time in MS
        int (*GetWrittenTime)(); // returns time written in MS (used for synching up vis stuff)

} Out_Module;


#endif