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100 lines
2.8 KiB
C++
100 lines
2.8 KiB
C++
#ifndef ALTSOUND_H
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#define ALTSOUND_H
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <mmsystem.h>
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#include <dsound.h>
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#include "i_sound.h"
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class AltSoundRenderer : public SoundRenderer
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{
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public:
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AltSoundRenderer ();
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~AltSoundRenderer ();
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bool IsValid ();
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void SetSfxVolume (float volume);
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int SetChannels (int numchans);
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void LoadSound (sfxinfo_t *sfx);
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void UnloadSound (sfxinfo_t *sfx);
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// Streaming sounds. PlayStream returns a channel handle that can be used with StopSound.
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SoundStream *CreateStream (SoundStreamCallback callback, int buffsamples, int flags, int samplerate, void *userdata);
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SoundStream *OpenStream (const char *filename, int flags, int offset, int length);
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// Starts a sound in a particular sound channel.
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long StartSound (sfxinfo_t *sfx, int vol, int sep, int pitch, int channel, bool looping);
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// Stops a sound channel.
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void StopSound (long handle);
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// Returns true if the channel is still playing a sound.
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bool IsPlayingSound (long handle);
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// Updates the volume, separation, and pitch of a sound channel.
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void UpdateSoundParams (long handle, int vol, int sep, int pitch);
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// For use by I_PlayMovie
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void MovieDisableSound ();
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void MovieResumeSound ();
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void UpdateSounds ();
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void PrintStatus ();
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void PrintDriversList ();
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void GatherStats (char *outstring);
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private:
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struct Channel;
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struct Stream;
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LPDIRECTSOUND lpds;
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LPDIRECTSOUNDBUFFER lpdsb, lpdsbPrimary;
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int Frequency;
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bool SimpleDown;
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int Amp;
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DWORD BufferSamples, BufferBytes;
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DWORD WritePos;
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DWORD BufferTime;
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DWORD MaxWaitTime;
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SDWORD *RenderBuffer;
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HANDLE MixerThread;
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HANDLE MixerEvent;
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bool MixerQuit;
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enum { NUM_PERFMETERS = 32 };
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double PerfMeter[NUM_PERFMETERS];
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int CurPerfMeter;
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Channel *Channels;
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int NumChannels;
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Stream *Streams;
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CRITICAL_SECTION StreamCriticalSection;
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bool DidInit;
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bool Init ();
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void Shutdown ();
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void CopyAndClip (SWORD *buffer, DWORD count, DWORD start);
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void UpdateSound ();
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void AddChannel8 (Channel *chan, DWORD count);
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void AddChannel16 (Channel *chan, DWORD count);
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void AddStream8 (Stream *chan, DWORD count);
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void AddStream16 (Stream *chan, DWORD count);
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static DWORD WINAPI MixerThreadFunc (LPVOID param);
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static SQWORD MixMono8 (SDWORD *dest, const SBYTE *src, DWORD count, SQWORD pos, SQWORD step, int leftvol, int rightvol);
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static SQWORD MixMono16 (SDWORD *dest, const SWORD *src, DWORD count, SQWORD pos, SQWORD step, int leftvol, int rightvol);
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static SQWORD MixStereo8 (SDWORD *dest, const SBYTE *src, DWORD count, SQWORD pos, SQWORD step, int vol);
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static SQWORD MixStereo16 (SDWORD *dest, const SWORD *src, DWORD count, SQWORD pos, SQWORD step, int vol);
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};
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class AltSoundStream : public SoundStream
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{
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};
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#endif
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