126 lines
3.0 KiB
C
126 lines
3.0 KiB
C
|
// --------------------------------------------------------------------------
|
||
|
|
// Name: sndbase.h
|
||
|
|
// Purpose:
|
||
|
|
// Date: 08/11/1999
|
||
|
|
// Author: Guilhem Lavaux <lavaux@easynet.fr> (C) 1999
|
||
|
|
// CVSID: $Id$
|
||
|
|
// --------------------------------------------------------------------------
|
||
|
|
#ifndef _WX_SNDBASE_H
|
||
|
|
#define _WX_SNDBASE_H
|
||
|
|
|
||
|
|
#ifdef __GNUG__
|
||
|
|
#pragma interface "sndbase.h"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <wx/defs.h>
|
||
|
|
|
||
|
|
enum {
|
||
|
|
wxSOUND_INPUT = 1,
|
||
|
|
wxSOUND_OUTPUT = 2,
|
||
|
|
wxSOUND_DUPLEX = wxSOUND_INPUT | wxSOUND_OUTPUT,
|
||
|
|
};
|
||
|
|
|
||
|
|
typedef enum {
|
||
|
|
wxSOUND_NOFORMAT,
|
||
|
|
wxSOUND_PCM,
|
||
|
|
wxSOUND_ULAW
|
||
|
|
} wxSoundFormatType;
|
||
|
|
|
||
|
|
typedef enum {
|
||
|
|
wxSOUND_NOERR,
|
||
|
|
wxSOUND_IOERR,
|
||
|
|
wxSOUND_INVFRMT,
|
||
|
|
wxSOUND_INVDEV,
|
||
|
|
wxSOUND_NOTEXACT,
|
||
|
|
wxSOUND_INVSTRM,
|
||
|
|
wxSOUND_NOCODEC,
|
||
|
|
wxSOUND_MEMERR
|
||
|
|
} wxSoundError;
|
||
|
|
|
||
|
|
class WXDLLEXPORT wxSoundStream;
|
||
|
|
|
||
|
|
typedef void (*wxSoundCallback)(wxSoundStream *stream, int evt,
|
||
|
|
char *cdata);
|
||
|
|
|
||
|
|
//
|
||
|
|
// Base class for sound format specification
|
||
|
|
//
|
||
|
|
|
||
|
|
class WXDLLEXPORT wxSoundFormatBase {
|
||
|
|
public:
|
||
|
|
wxSoundFormatBase();
|
||
|
|
virtual ~wxSoundFormatBase();
|
||
|
|
|
||
|
|
virtual wxSoundFormatType GetType() const { return wxSOUND_NOFORMAT; }
|
||
|
|
virtual wxSoundFormatBase *Clone() const;
|
||
|
|
|
||
|
|
virtual wxUint32 GetTimeFromByte(wxUint32 bytes) const = 0;
|
||
|
|
virtual wxUint32 GetByteFromTime(wxUint32 time) const = 0;
|
||
|
|
|
||
|
|
virtual bool operator !=(const wxSoundFormatBase& frmt2) const;
|
||
|
|
};
|
||
|
|
|
||
|
|
//
|
||
|
|
// Base class for sound streams
|
||
|
|
//
|
||
|
|
|
||
|
|
class wxSoundStream {
|
||
|
|
public:
|
||
|
|
wxSoundStream();
|
||
|
|
virtual ~wxSoundStream();
|
||
|
|
|
||
|
|
// Reads "len" bytes from the sound stream.
|
||
|
|
virtual wxSoundStream& Read(void *buffer, size_t len) = 0;
|
||
|
|
// Writes "len" byte to the sound stream.
|
||
|
|
virtual wxSoundStream& Write(const void *buffer, size_t len) = 0;
|
||
|
|
// Returns the best size for IO calls
|
||
|
|
virtual wxUint32 GetBestSize() const { return 1024; }
|
||
|
|
|
||
|
|
// SetSoundFormat returns TRUE when the format can be handled.
|
||
|
|
virtual bool SetSoundFormat(const wxSoundFormatBase& format);
|
||
|
|
|
||
|
|
// GetSoundFormat returns the current sound format.
|
||
|
|
wxSoundFormatBase& GetSoundFormat() const { return *m_sndformat; }
|
||
|
|
|
||
|
|
// Register a callback for a specified async event.
|
||
|
|
void Register(int evt, wxSoundCallback cbk, char *cdata);
|
||
|
|
|
||
|
|
// Starts the async notifier.
|
||
|
|
virtual bool StartProduction(int evt) = 0;
|
||
|
|
// Stops the async notifier.
|
||
|
|
virtual bool StopProduction() = 0;
|
||
|
|
// Sets the event handler: if it is non-null, all events are routed to it.
|
||
|
|
void SetEventHandler(wxSoundStream *handler) { m_handler = handler; }
|
||
|
|
|
||
|
|
// Initializes the full duplex mode.
|
||
|
|
virtual void SetDuplexMode(bool duplex) = 0;
|
||
|
|
|
||
|
|
wxSoundError GetError() const { return m_snderror; }
|
||
|
|
size_t GetLastAccess() const { return m_lastcount; }
|
||
|
|
|
||
|
|
protected:
|
||
|
|
// Current sound format
|
||
|
|
wxSoundFormatBase *m_sndformat;
|
||
|
|
|
||
|
|
// Last error
|
||
|
|
wxSoundError m_snderror;
|
||
|
|
|
||
|
|
// Last access
|
||
|
|
size_t m_lastcount;
|
||
|
|
|
||
|
|
// Event handler
|
||
|
|
wxSoundStream *m_handler;
|
||
|
|
|
||
|
|
wxSoundCallback m_callback[2];
|
||
|
|
char *m_cdata[2];
|
||
|
|
|
||
|
|
protected:
|
||
|
|
// Do the async stuff.
|
||
|
|
void DoAsyncStuff(int evt);
|
||
|
|
|
||
|
|
// Handles event
|
||
|
|
virtual void OnSoundEvent(int evt);
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|