129 lines
3.4 KiB
C
129 lines
3.4 KiB
C
// Emacs style mode select -*- C++ -*-
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//-----------------------------------------------------------------------------
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//
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// $Id:$
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//
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// Copyright (C) 1993-1996 by id Software, Inc.
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//
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// This source is available for distribution and/or modification
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// only under the terms of the DOOM Source Code License as
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// published by id Software. All rights reserved.
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//
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// The source is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
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// for more details.
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//
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// $Log:$
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//
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// DESCRIPTION:
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// System interface for sound.
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//
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//-----------------------------------------------------------------------------
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static const char
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rcsid[] = "$Id: i_unix.c,v 1.5 1997/02/03 22:45:10 b1 Exp $";
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#include "sounds.h"
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char MsgText[256];
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void WriteDebug(char *);
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#define NUM_SOUND_FX 128
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#define SB_SIZE 20480
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void CreateSoundBuffer(int Channel, int length, unsigned char *data);
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void I_PlaySoundEffect(int sfxid, int Channel, int volume, int pan);
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void DS_Error( HRESULT hresult, char *msg );
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LPDIRECTSOUND8 lpDS;
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LPDIRECTSOUNDBUFFER lpMix[2];
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extern int gametic;
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int swap_stereo;
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static int mixbuff=0;
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// Needed for calling the actual sound output.
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#define SAMPLECOUNT 512
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#define NUM_CHANNELS 16
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// It is 2 for 16bit, and 2 for two channels.
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#define BUFMUL 4
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#define MIXBUFFERSIZE (SAMPLECOUNT*BUFMUL)
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#define SAMPLERATE 11025 // Hz
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#define SAMPLESIZE 2 // 16bit
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extern HWND win;
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void I_CreateSound(void)
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{
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HRESULT hret;
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int buff;
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DSBUFFERDESC dsbd;
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WAVEFORMATEX wfx;
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hret = DirectSoundCreate8(NULL, &lpDS, NULL);
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if (hret != DS_OK)
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{
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//printf("failed DirectSoundCreate");
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return;
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}
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hret = lpDS->lpVtbl->SetCooperativeLevel(lpDS, win, DSSCL_PRIORITY);
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if (hret != DS_OK)
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//printf("failled DirectSound.SetCooperativeLevel");
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memset( &wfx,0, sizeof(WAVEFORMATEX) );
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wfx.wFormatTag = WAVE_FORMAT_PCM;
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wfx.nChannels = 2;
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wfx.nSamplesPerSec = 11025;
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wfx.wBitsPerSample = 16;
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wfx.nBlockAlign = 4;
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wfx.nAvgBytesPerSec = 44100;
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memset(&dsbd,0,sizeof(DSBUFFERDESC));
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dsbd.dwSize = sizeof(DSBUFFERDESC);
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dsbd.dwFlags = 0;
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dsbd.dwBufferBytes = MIXBUFFERSIZE;
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dsbd.lpwfxFormat = &wfx;
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hret=lpDS->lpVtbl->CreateSoundBuffer(lpDS,&dsbd, &lpMix[0], NULL);
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hret=lpDS->lpVtbl->CreateSoundBuffer(lpDS,&dsbd, &lpMix[1], NULL);
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return;
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};
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void ShutdownDirectSound(void)
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{
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int buff;
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DWORD BufferStatus;
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if (lpMix[0] !=NULL)
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lpMix[0]->lpVtbl->Release(lpMix[0]);
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if(lpDS != NULL)
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lpDS->lpVtbl->Release(lpDS);
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}
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void I_SubmitSound(signed short *mixbuffer)
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{
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DWORD hret;
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void* pPtr1=NULL,*pPtr2=NULL;
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DWORD dwSize1=0,dwSize2=0;
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hret = lpMix[mixbuff]->lpVtbl->Stop(lpMix[mixbuff]);
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hret = lpMix[mixbuff]->lpVtbl->SetCurrentPosition(lpMix[mixbuff],0);
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hret=lpMix[mixbuff]->lpVtbl->Lock(lpMix[mixbuff],0,MIXBUFFERSIZE,&pPtr1,
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&dwSize1,&pPtr2,&dwSize2,0);
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if (hret!=DS_OK)
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{ //printf("Error locking on play start");
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return ;
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}
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memcpy(pPtr1, (void*)mixbuffer, MIXBUFFERSIZE);
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hret-lpMix[mixbuff]->lpVtbl->Unlock(lpMix[mixbuff],pPtr1, dwSize1, pPtr2, dwSize2);
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hret = lpMix[mixbuff]->lpVtbl->Play(lpMix[mixbuff],0,0,0);
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mixbuff= (mixbuff+1)&1;
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};
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