313 lines
7.1 KiB
C
313 lines
7.1 KiB
C
#ifdef __CYGWIN__
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#include "quakedef.h"
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int SNDDMA_Init(soundcardinfo_t *sc)
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{
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Con_Printf("Cygwin targets do not have sound. Sorry.\n");
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return 0;
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}
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void S_Init(void)
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{
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Con_Printf("Cygwin targets do not have sound. Sorry.\n");
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}
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void S_Startup (void){}
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void S_Restart_f (void){}
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void SNDDMA_SetUnderWater(qboolean underwater) {}
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void S_RawAudio(int sourceid, qbyte *data, int speed, int samples, int channels, int width){}
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void S_Shutdown (void){}
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void S_ShutdownCur (void){}
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void S_StartSound (int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float fvol, float attenuation){}
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void S_StaticSound (sfx_t *sfx, vec3_t origin, float vol, float attenuation){}
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void S_StopSound (int entnum, int entchannel){}
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void S_StopAllSounds(qboolean clear){}
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void S_ClearBuffer (soundcardinfo_t *sc){}
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void S_Update (vec3_t origin, vec3_t v_forward, vec3_t v_right, vec3_t v_up){}
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void S_ExtraUpdate (void){}
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sfx_t *S_PrecacheSound (char *sample)
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{
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return NULL;
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}
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void S_TouchSound (char *sample){}
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void S_LocalSound (char *s){}
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void S_ClearPrecache (void){}
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void S_BeginPrecaching (void){}
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void S_EndPrecaching (void){}
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cvar_t bgmvolume;
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cvar_t volume;
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cvar_t precache;
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int snd_speed;
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#else
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#include <unistd.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include <sys/shm.h>
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#include <sys/wait.h>
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#include <linux/soundcard.h>
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#include <stdio.h>
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#include "quakedef.h"
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qboolean snd_firsttime = true;
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static int tryrates[] = { 11025, 22051, 44100, 8000 };
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soundcardinfo_t *sndcardinfo;
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void SNDDMA_SetUnderWater(qboolean underwater) //simply a stub. Any ideas how to actually implement this properly?
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{
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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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{ //FIXME: implement snd_multipledevices somehow.
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int rc;
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int fmt;
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int tmp;
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int i;
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char *s;
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struct audio_buf_info info;
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int caps;
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char *snddev = NULL;
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cvar_t *devname;
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soundcardinfo_t *ec;
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devname = Cvar_Get("snd_devicename", "/dev/dsp", 0, "Sound controls");
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snddev = devname->string;
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for (ec = sndcardinfo; ec; ec = ec->next)
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if (!strcmp(ec->name, snddev))
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return 2;
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sc->inactive_sound = true; //linux sound devices always play sound, even when we're not the active app...
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// open the sound device, confirm capability to mmap, and get size of dma buffer
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Q_strncpyz(sc->name, snddev, sizeof(sc->name));
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printf("Initing sound device %s\n", snddev);
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sc->audio_fd = open(snddev, O_RDWR);
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if (sc->audio_fd < 0)
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{
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perror(snddev);
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Con_Printf("Could not open %s\n", snddev);
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SNDDMA_Shutdown(sc);
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return 0;
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}
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rc = ioctl(sc->audio_fd, SNDCTL_DSP_RESET, 0);
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if (rc < 0)
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{
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perror(snddev);
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Con_Printf("Could not reset %s\n", snddev);
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SNDDMA_Shutdown(sc);
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return 0;
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}
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if (ioctl(sc->audio_fd, SNDCTL_DSP_GETCAPS, &caps)==-1)
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{
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perror(snddev);
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Con_Printf("Sound driver too old\n");
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SNDDMA_Shutdown(sc);
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return 0;
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}
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if (!(caps & DSP_CAP_TRIGGER) || !(caps & DSP_CAP_MMAP))
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{
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Con_Printf("Sorry but your soundcard can't do this\n");
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SNDDMA_Shutdown(sc);
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return 0;
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}
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if (ioctl(sc->audio_fd, SNDCTL_DSP_GETOSPACE, &info)==-1)
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{
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perror("GETOSPACE");
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Con_Printf("Um, can't do GETOSPACE?\n");
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SNDDMA_Shutdown(sc);
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return 0;
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}
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sc->sn.splitbuffer = 0;
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// set sample bits & speed
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s = getenv("QUAKE_SOUND_SAMPLEBITS");
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if (s) sc->sn.samplebits = atoi(s);
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else if ((i = COM_CheckParm("-sndbits")) != 0)
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sc->sn.samplebits = atoi(com_argv[i+1]);
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if (sc->sn.samplebits != 16 && sc->sn.samplebits != 8)
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{
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ioctl(sc->audio_fd, SNDCTL_DSP_GETFMTS, &fmt);
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if (fmt & AFMT_S16_LE)
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sc->sn.samplebits = 16;
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else if (fmt & AFMT_U8)
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sc->sn.samplebits = 8;
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}
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s = getenv("QUAKE_SOUND_SPEED");
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if (s) sc->sn.speed = atoi(s);
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else if ((i = COM_CheckParm("-sndspeed")) != 0)
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sc->sn.speed = atoi(com_argv[i+1]);
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else
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{
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if (!sc->sn.speed || ioctl(sc->audio_fd, SNDCTL_DSP_SPEED, &sc->sn.speed)) //use the default - menu set value.
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{ //humph, default didn't work. Go for random preset ones that should work.
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for (i=0 ; i<sizeof(tryrates)/4 ; i++)
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if (!ioctl(sc->audio_fd, SNDCTL_DSP_SPEED, &tryrates[i])) break;
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sc->sn.speed = tryrates[i];
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}
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}
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s = getenv("QUAKE_SOUND_CHANNELS");
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if (s) sc->sn.numchannels = atoi(s);
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else if ((i = COM_CheckParm("-sndmono")) != 0)
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sc->sn.numchannels = 1;
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else if ((i = COM_CheckParm("-sndstereo")) != 0)
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sc->sn.numchannels = 2;
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else sc->sn.numchannels = 2;
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sc->sn.samples = info.fragstotal * info.fragsize / (sc->sn.samplebits/8);
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sc->sn.submission_chunk = 1;
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// memory map the dma buffer
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sc->sn.buffer = (unsigned char *) mmap(NULL, info.fragstotal
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* info.fragsize, PROT_WRITE, MAP_FILE|MAP_SHARED, sc->audio_fd, 0);
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if (!sc->sn.buffer)
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{
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perror(snddev);
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Con_Printf("Could not mmap %s\n", snddev);
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SNDDMA_Shutdown(sc);
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return 0;
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}
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tmp = 0;
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if (sc->sn.numchannels == 2)
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tmp = 1;
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rc = ioctl(sc->audio_fd, SNDCTL_DSP_STEREO, &tmp);
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if (rc < 0)
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{
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perror(snddev);
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Con_Printf("Could not set %s to stereo=%d", snddev, sc->sn.numchannels);
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SNDDMA_Shutdown(sc);
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return 0;
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}
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if (tmp)
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sc->sn.numchannels = 2;
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else
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sc->sn.numchannels = 1;
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rc = ioctl(sc->audio_fd, SNDCTL_DSP_SPEED, &sc->sn.speed);
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if (rc < 0)
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{
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perror(snddev);
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Con_Printf("Could not set %s speed to %d", snddev, sc->sn.speed);
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SNDDMA_Shutdown(sc);
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return 0;
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}
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if (sc->sn.samplebits == 16)
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{
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rc = AFMT_S16_LE;
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rc = ioctl(sc->audio_fd, SNDCTL_DSP_SETFMT, &rc);
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if (rc < 0)
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{
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perror(snddev);
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Con_Printf("Could not support 16-bit data. Try 8-bit.\n");
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SNDDMA_Shutdown(sc);
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return 0;
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}
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}
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else if (sc->sn.samplebits == 8)
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{
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rc = AFMT_U8;
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rc = ioctl(sc->audio_fd, SNDCTL_DSP_SETFMT, &rc);
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if (rc < 0)
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{
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perror(snddev);
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Con_Printf("Could not support 8-bit data.\n");
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SNDDMA_Shutdown(sc);
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return 0;
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}
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}
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else
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{
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perror(snddev);
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Con_Printf("%d-bit sound not supported.", sc->sn.samplebits);
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SNDDMA_Shutdown(sc);
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return 0;
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}
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// toggle the trigger & start her up
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tmp = 0;
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rc = ioctl(sc->audio_fd, SNDCTL_DSP_SETTRIGGER, &tmp);
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if (rc < 0)
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{
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perror(snddev);
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Con_Printf("Could not toggle.\n");
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SNDDMA_Shutdown(sc);
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return 0;
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}
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tmp = PCM_ENABLE_OUTPUT;
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rc = ioctl(sc->audio_fd, SNDCTL_DSP_SETTRIGGER, &tmp);
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if (rc < 0)
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{
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perror(snddev);
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Con_Printf("Could not toggle.\n");
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SNDDMA_Shutdown(sc);
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return 0;
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}
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sc->sn.samplepos = 0;
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return 1;
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}
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int SNDDMA_GetDMAPos(soundcardinfo_t *sc)
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{
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struct count_info count;
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if (ioctl(sc->audio_fd, SNDCTL_DSP_GETOPTR, &count)==-1)
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{
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perror("/dev/dsp");
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Con_Printf("Uh, sound dead.\n");
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close(sc->audio_fd);
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return 0;
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}
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// shm->samplepos = (count.bytes / (shm->samplebits / 8)) & (shm->samples-1);
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// fprintf(stderr, "%d \r", count.ptr);
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sc->sn.samplepos = count.ptr / (sc->sn.samplebits / 8);
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return sc->sn.samplepos;
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}
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void SNDDMA_Shutdown(soundcardinfo_t *sc)
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{
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if (sc->sn.buffer) //close it properly, so we can go and restart it later.
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munmap(sc->sn.buffer, sc->sn.samples * (sc->sn.samplebits/8));
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if (sc->audio_fd)
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close(sc->audio_fd);
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*sc->name = '\0';
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}
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/*
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==============
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SNDDMA_Submit
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Send sound to device if buffer isn't really the dma buffer
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===============
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*/
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void SNDDMA_Submit(soundcardinfo_t *sc)
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{
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}
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#endif
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