cb487034e9
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@871 fc73d0e0-1445-4013-8a0c-d673dee63da5
118 lines
2.6 KiB
C
118 lines
2.6 KiB
C
#include "quakedef.h"
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#include "winquake.h"
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#include <SDL.h>
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extern cvar_t snd_khz;
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#define SOUND_BUFFER_SIZE 0x0400
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int snd_inited;
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soundcardinfo_t *sndcardinfo;
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int snd_firsttime = 0;
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int aimedforguid;
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//lamocodec.
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static char buffer[SOUND_BUFFER_SIZE];
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int sndpos;
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void SNDDMA_Submit(soundcardinfo_t *sc)
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{ //We already wrote it into the 'dma' buffer (heh, the closest we can get to it at least)
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//so we now wait for sdl to request it.
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//yes, this can result in slow sound.
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}
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void SNDDMA_Shutdown(soundcardinfo_t *sc)
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{
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if (snd_inited)
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{
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snd_inited = false;
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SDL_CloseAudio();
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}
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}
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int SNDDMA_GetDMAPos(soundcardinfo_t *sc)
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{
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sc->sn.samplepos = (sndpos / (sc->sn.samplebits/8)) % sc->sn.samples;
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return sc->sn.samplepos;
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}
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void SNDDMA_Paint(void *userdata, qbyte *stream, int len)
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{
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if (len > SOUND_BUFFER_SIZE)
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len = SOUND_BUFFER_SIZE; //whoa nellie!
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if (len > SOUND_BUFFER_SIZE - sndpos)
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{ //buffer will wrap, fill in the rest
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memcpy(stream, buffer + sndpos, SOUND_BUFFER_SIZE - sndpos);
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len -= SOUND_BUFFER_SIZE - sndpos;
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sndpos = 0;
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} //and finish from the start
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memcpy(stream, buffer + sndpos, len);
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sndpos += len;
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}
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void S_UpdateCapture(void) //any ideas how to get microphone input?
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{
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}
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int SNDDMA_Init(soundcardinfo_t *sc)
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{
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SDL_AudioSpec desired, obtained;
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if (snd_inited)
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{ //our init code actually calls this function multiple times, in the case that the user has multiple sound cards
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// Con_Printf("Sound was already inited\n");
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return 2; //erm. SDL won't allow multiple sound cards anyway.
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}
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Con_Printf("SDL AUDIO INITING\n");
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if(SDL_InitSubSystem(SDL_INIT_AUDIO | SDL_INIT_NOPARACHUTE))
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{
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Con_Print("Couldn't initialize SDL audio subsystem\n");
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return false;
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}
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memset(&desired, 0, sizeof(desired));
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if (!sc->sn.speed)
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{
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if (snd_khz.value >= 45)
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sc->sn.speed = 48000;
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else if (snd_khz.value >= 30) //set by a slider
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sc->sn.speed = 44100;
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else if (snd_khz.value >= 20)
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sc->sn.speed = 22050;
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else
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sc->sn.speed = 11025;
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}
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desired.freq = sc->sn.speed;
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desired.channels = 2;
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desired.samples = SOUND_BUFFER_SIZE;
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desired.format = AUDIO_S16;
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desired.callback = SNDDMA_Paint;
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desired.userdata = sc;
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if ( SDL_OpenAudio(&desired, &obtained) < 0 )
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{
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Con_Printf("SDL: SNDDMA_Init: couldn't open sound device (%s).\n", SDL_GetError());
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return false;
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}
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sc->sn.numchannels = obtained.channels;
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sc->sn.speed = desired.freq;
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sc->sn.samplebits = 16;
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sc->sn.samples = SOUND_BUFFER_SIZE;
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sc->sn.buffer = buffer;
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Con_Printf("Got sound %i-%i\n", obtained.freq, obtained.format);
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snd_inited = true;
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SDL_PauseAudio(0);
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return true;
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}
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void SNDDMA_SetUnderWater(qboolean underwater)
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{
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}
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