diff options
Diffstat (limited to 'games/fuhquake/files/snd_freebsd.c')
| -rw-r--r-- | games/fuhquake/files/snd_freebsd.c | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/games/fuhquake/files/snd_freebsd.c b/games/fuhquake/files/snd_freebsd.c new file mode 100644 index 000000000000..9cab11f472ee --- /dev/null +++ b/games/fuhquake/files/snd_freebsd.c @@ -0,0 +1,279 @@ +#include <unistd.h> +#include <fcntl.h> +#include <stdlib.h> +#include <sys/types.h> +#include <sys/ioctl.h> +#include <sys/mman.h> +#include <sys/shm.h> +#include <sys/wait.h> +#if defined(__linux__) +#include <linux/soundcard.h> +#elif defined(__FreeBSD__) +#include <sys/soundcard.h> +#endif +#include <stdio.h> + +#include "quakedef.h" +#include "sound.h" + +int audio_fd; +int snd_inited; +const char *snddev = "/dev/dsp"; + +static int tryrates[] = { 11025, 22051, 44100, 8000 }; + +qboolean +SNDDMA_Init(void) +{ + int tmp; + char *s; + struct audio_buf_info info; + + snd_inited = 0; + + if (s = getenv("SNDDEV")) + snddev = s; + if (tmp = COM_CheckParm("-snddev")) + snddev = com_argv[tmp + 1]; + + /* + * Open audio device, confirm capability to mmap, + * and get size of DMA buffer. + */ + + if ((audio_fd = open(snddev, O_RDWR)) < 0) + { + perror(snddev); + Com_Printf("Could not open %s\n", snddev); + return (0); + } + + if (ioctl(audio_fd, SNDCTL_DSP_RESET, 0) < 0) + { + perror(snddev); + Com_Printf("Could not reset %s\n", snddev); + close(audio_fd); + return (0); + } + + if (ioctl(audio_fd, SNDCTL_DSP_GETCAPS, &tmp) == -1) + { + perror(snddev); + Com_Printf("Sound driver too old\n"); + close(audio_fd); + return (0); + } + + if (!(tmp & DSP_CAP_TRIGGER) || !(tmp & DSP_CAP_MMAP)) + { + Com_Printf("Sorry, but your soundcard cannot do memory-mapped I/O\n"); + close(audio_fd); + return (0); + } + + if (ioctl(audio_fd, SNDCTL_DSP_GETOSPACE, &info) == -1) + { + perror(snddev); + Com_Printf("Um, cannot do GETOSPACE?\n"); + close(audio_fd); + return (0); + } + + shm = &sn; + shm->splitbuffer = 0; + + /* Set sample bits & speed. */ + + if (s = getenv("QUAKE_SOUND_SAMPLEBITS")) + shm->samplebits = atoi(s); + else if (tmp = COM_CheckParm("-sndbits")) + shm->samplebits = atoi(com_argv[tmp + 1]); + + if (shm->samplebits != 16 && shm->samplebits != 8) + { + ioctl(audio_fd, SNDCTL_DSP_GETFMTS, &tmp); + if (tmp & AFMT_S16_LE) + shm->samplebits = 16; + else if (tmp & AFMT_U8) + shm->samplebits = 8; + else { + Com_Printf("Could not set sample format\n"); + close(audio_fd); + return (0); + } + } + + if (s = getenv("QUAKE_SOUND_SPEED")) + shm->speed = atoi(s); + else if (tmp = COM_CheckParm("-sndspeed")) + shm->speed = atoi(com_argv[tmp + 1]); + else + { + for (tmp = 0; tmp < sizeof(tryrates) / 4; tmp++) + if (!ioctl(audio_fd, SNDCTL_DSP_SPEED, &tryrates[tmp])) + break; + shm->speed = tryrates[tmp]; + } + + if (s = getenv("QUAKE_SOUND_CHANNELS")) + shm->channels = atoi(s); + else if (tmp = COM_CheckParm("-sndmono")) + shm->channels = 1; + else shm->channels = 2; + + shm->samples = info.fragstotal * info.fragsize / (shm->samplebits / 8); + shm->submission_chunk = 1; + + if (shm->channels == 2) + tmp = 1; + else + tmp = 0; + + if (ioctl(audio_fd, SNDCTL_DSP_STEREO, &tmp) < 0) + { + perror(snddev); + Com_Printf("Could not set %s to stereo = %d\n", snddev, shm->channels); + close(audio_fd); + return (0); + } + + Com_Printf("Sound using stereo = %d\n", shm->channels); + + if (tmp) + shm->channels = 2; + else + shm->channels = 1; + + if (ioctl(audio_fd, SNDCTL_DSP_SPEED, &shm->speed) < 0) + { + perror(snddev); + Com_Printf("Could not set %s speed to %d\n", snddev, shm->speed); + close(audio_fd); + return (0); + } + + Com_Printf("Sound on speed = %d\n", shm->speed); + + if (shm->samplebits == 16) + { + tmp = AFMT_S16_LE; + if (ioctl(audio_fd, SNDCTL_DSP_SETFMT, &tmp)) + { + perror(snddev); + Com_Printf("Could not support 16-bit data, try 8-bit\n"); + close(audio_fd); + return (0); + } + } + else if (shm->samplebits == 8) + { + tmp = AFMT_U8; + if (ioctl(audio_fd, SNDCTL_DSP_SETFMT, &tmp)) + { + perror(snddev); + Com_Printf("Could not support 8-bit data\n"); + close(audio_fd); + return (0); + } + } + else { + perror(snddev); + Com_Printf("%d-bit sound not supported\n", shm->samplebits); + close(audio_fd); + return (0); + } + + Com_Printf("%s is set to %d-bit format.\n", snddev, shm->samplebits); + + /* Finally, memory map the DMA buffer. */ + + shm->buffer = (unsigned char *)mmap(NULL, info.fragstotal + * info.fragsize, +#ifdef __FreeBSD__ + PROT_READ | PROT_WRITE, +#else + PROT_WRITE, +#endif + MAP_FILE | MAP_SHARED, audio_fd, 0); + + if (!shm->buffer || shm->buffer == MAP_FAILED) + { + perror(snddev); + Com_Printf("Could not mmap %s\n", snddev); + close(audio_fd); + return (0); + } + + /* Toggle the trigger & start her up. */ + + tmp = 0; + if (ioctl(audio_fd, SNDCTL_DSP_SETTRIGGER, &tmp) < 0) + { + perror(snddev); + Com_Printf("Could not toggle\n"); + munmap(shm->buffer, shm->samples * shm->samplebits / 8); + close(audio_fd); + return (0); + } + + tmp = PCM_ENABLE_OUTPUT; + if (ioctl(audio_fd, SNDCTL_DSP_SETTRIGGER, &tmp) < 0) + { + perror(snddev); + Com_Printf("Could not toggle\n"); + close(audio_fd); + return (0); + } + + shm->samplepos = 0; + snd_inited = 1; + + return (1); +} + +int +SNDDMA_GetDMAPos(void) +{ + struct count_info count; + + if (!snd_inited) + return (0); + + if (ioctl(audio_fd, SNDCTL_DSP_GETOPTR, &count) == -1) + { + perror(snddev); + Com_Printf("Uh, sound dead\n"); + close(audio_fd); + snd_inited = 0; + return (0); + } + + /* shm->samplepos = (count.bytes / (shm->samplebits / 8)) & (shm->samples-1); + fprintf(stderr, "%d \r", count.ptr); */ + + shm->samplepos = count.ptr / (shm->samplebits / 8); + + return (shm->samplepos); +} + +void +SNDDMA_Shutdown(void) +{ + if (snd_inited) + { + close(audio_fd); + snd_inited = 0; + } +} + +/* +============== +SNDDMA_Submit + +Send sound to device if buffer isn't really the DMA buffer +=============== +*/ +void +SNDDMA_Submit(void) +{ +} |