Loaders.h

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/***********************************************************************

  FinalMix: Loaders.h
  by Martin Decky
  
  Redistribution of this file is permitted under the GNU Public License.

  0.9.2     Initial
  0.9.5     Cleanup

**********************************************************************/


#ifndef _FM_LOADERS_H_
#define _FM_LOADERS_H_


#include "generic.h"
#include <wx/wx.h>
#include <wx/file.h>
#include <wx/list.h>


typedef struct {
    off_t pos;   
    off_t len;   
    off_t hinfo; 
} DataPos;

WX_DECLARE_LIST(DataPos, Datas);


typedef union {
    wxUint32 id;   
    char chars[4]; 
} fourcc;


inline bool cmp_fourcc(const fourcc cc, const char * str) {
    return (strncmp((const char * ) &cc.chars, str, 4) == 0);
}


class Loader {
    public:
        virtual const wxString & Name() const = 0; 
        virtual enum status_t Attach(wxFile * file, const wxString & name) = 0;                          
        virtual enum status_t Create(wxFile * file, const wxString & name, const format_t & fmt) = 0;    
        virtual enum status_t Create(wxFile * file, const wxString & name, const format_ex_t & fmt) = 0; 
        virtual track_t NumIntTracks() const = 0;                                                           
        virtual const format_t * TrackFormat(const track_t itrack) const = 0;                               
        virtual const wxString * FileName() const = 0;                                                      
        virtual length_t GetRawLength() const = 0;                                                          
        virtual samples_t GetSamples(const track_t itrack, const samples_t pos, const samples_t len, void * data) = 0; 
        virtual samples_t AppendSamples(const track_t itrack, const samples_t len, void * data, samples_t & npos) = 0; 
        virtual samples_t AppendSamples(const samples_t len, void * data) = 0;                                         
};


void LoadersRegister(); 
#endif

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