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* QEMU FMOD audio driver
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* Copyright (c) 2004-2005 Vassili Karpov (malc)
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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#include <fmod_errors.h>
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#define AUDIO_CAP "fmod"
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#include "audio_int.h"
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typedef struct FMODVoiceOut {
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FSOUND_SAMPLE *fmod_sample;
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typedef struct FMODVoiceIn {
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FSOUND_SAMPLE *fmod_sample;
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static void GCC_FMT_ATTR (1, 2) fmod_logerr (const char *fmt, ...)
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AUD_vlog (AUDIO_CAP, fmt, ap);
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AUD_log (AUDIO_CAP, "Reason: %s\n",
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FMOD_ErrorString (FSOUND_GetError ()));
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static void GCC_FMT_ATTR (2, 3) fmod_logerr2 (
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AUD_log (AUDIO_CAP, "Could not initialize %s\n", typ);
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AUD_vlog (AUDIO_CAP, fmt, ap);
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AUD_log (AUDIO_CAP, "Reason: %s\n",
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FMOD_ErrorString (FSOUND_GetError ()));
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static int fmod_write (SWVoiceOut *sw, void *buf, int len)
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return audio_pcm_sw_write (sw, buf, len);
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static void fmod_clear_sample (FMODVoiceOut *fmd)
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HWVoiceOut *hw = &fmd->hw;
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void *p1 = 0, *p2 = 0;
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unsigned int len1 = 0, len2 = 0;
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status = FSOUND_Sample_Lock (
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hw->samples << hw->info.shift,
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fmod_logerr ("Failed to lock sample\n");
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if ((len1 & hw->info.align) || (len2 & hw->info.align)) {
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dolog ("Lock returned misaligned length %d, %d, alignment %d\n",
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len1, len2, hw->info.align + 1);
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if ((len1 + len2) - (hw->samples << hw->info.shift)) {
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dolog ("Lock returned incomplete length %d, %d\n",
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len1 + len2, hw->samples << hw->info.shift);
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audio_pcm_info_clear_buf (&hw->info, p1, hw->samples);
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status = FSOUND_Sample_Unlock (fmd->fmod_sample, p1, p2, len1, len2);
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fmod_logerr ("Failed to unlock sample\n");
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static void fmod_write_sample (HWVoiceOut *hw, uint8_t *dst, int dst_len)
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int src_len1 = dst_len;
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int pos = hw->rpos + dst_len;
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st_sample_t *src1 = hw->mix_buf + hw->rpos;
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st_sample_t *src2 = NULL;
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if (pos > hw->samples) {
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src_len1 = hw->samples - hw->rpos;
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src_len2 = dst_len - src_len1;
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hw->clip (dst, src1, src_len1);
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dst = advance (dst, src_len1 << hw->info.shift);
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hw->clip (dst, src2, src_len2);
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hw->rpos = pos % hw->samples;
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static int fmod_unlock_sample (FSOUND_SAMPLE *sample, void *p1, void *p2,
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unsigned int blen1, unsigned int blen2)
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int status = FSOUND_Sample_Unlock (sample, p1, p2, blen1, blen2);
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fmod_logerr ("Failed to unlock sample\n");
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static int fmod_lock_sample (
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FSOUND_SAMPLE *sample,
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struct audio_pcm_info *info,
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status = FSOUND_Sample_Lock (
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fmod_logerr ("Failed to lock sample\n");
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if ((*blen1 & info->align) || (*blen2 & info->align)) {
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dolog ("Lock returned misaligned length %d, %d, alignment %d\n",
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*blen1, *blen2, info->align + 1);
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fmod_unlock_sample (sample, *p1, *p2, *blen1, *blen2);
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if (!*p1 && *blen1) {
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dolog ("warning: !p1 && blen1=%d\n", *blen1);
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dolog ("warning: !p2 && blen2=%d\n", *blen2);
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static int fmod_run_out (HWVoiceOut *hw)
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FMODVoiceOut *fmd = (FMODVoiceOut *) hw;
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void *p1 = 0, *p2 = 0;
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unsigned int blen1 = 0, blen2 = 0;
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unsigned int len1 = 0, len2 = 0;
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live = audio_pcm_hw_get_live_out2 (hw, &nb_live);
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if (!hw->pending_disable
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&& (conf.threshold && live <= conf.threshold)) {
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ldebug ("live=%d nb_live=%d\n", live, nb_live);
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if (fmd->channel >= 0) {
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int old_pos = fmd->old_pos;
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int ppos = FSOUND_GetCurrentPosition (fmd->channel);
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if (ppos == old_pos || !ppos) {
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if ((old_pos < ppos) && ((old_pos + len) > ppos)) {
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len = ppos - old_pos;
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if ((old_pos > ppos) && ((old_pos + len) > (ppos + hw->samples))) {
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len = hw->samples - old_pos + ppos;
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if (audio_bug (AUDIO_FUNC, decr < 0)) {
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dolog ("decr=%d live=%d ppos=%d old_pos=%d len=%d\n",
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decr, live, ppos, old_pos, len);
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if (fmod_lock_sample (fmd->fmod_sample, &fmd->hw.info,
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len1 = blen1 >> hw->info.shift;
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len2 = blen2 >> hw->info.shift;
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ldebug ("%p %p %d %d %d %d\n", p1, p2, len1, len2, blen1, blen2);
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fmod_write_sample (hw, p1, len1);
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fmod_write_sample (hw, p2, len2);
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fmod_unlock_sample (fmd->fmod_sample, p1, p2, blen1, blen2);
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fmd->old_pos = (fmd->old_pos + decr) % hw->samples;
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static int aud_to_fmodfmt (audfmt_e fmt, int stereo)
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int mode = FSOUND_LOOP_NORMAL;
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mode |= FSOUND_SIGNED | FSOUND_8BITS;
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mode |= FSOUND_UNSIGNED | FSOUND_8BITS;
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mode |= FSOUND_SIGNED | FSOUND_16BITS;
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mode |= FSOUND_UNSIGNED | FSOUND_16BITS;
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dolog ("Internal logic error: Bad audio format %d\n", fmt);
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mode |= FSOUND_8BITS;
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mode |= stereo ? FSOUND_STEREO : FSOUND_MONO;
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static void fmod_fini_out (HWVoiceOut *hw)
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FMODVoiceOut *fmd = (FMODVoiceOut *) hw;
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if (fmd->fmod_sample) {
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FSOUND_Sample_Free (fmd->fmod_sample);
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fmd->fmod_sample = 0;
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if (fmd->channel >= 0) {
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FSOUND_StopSound (fmd->channel);
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static int fmod_init_out (HWVoiceOut *hw, audsettings_t *as)
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int bits16, mode, channel;
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FMODVoiceOut *fmd = (FMODVoiceOut *) hw;
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audsettings_t obt_as = *as;
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mode = aud_to_fmodfmt (as->fmt, as->nchannels == 2 ? 1 : 0);
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fmd->fmod_sample = FSOUND_Sample_Alloc (
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FSOUND_FREE, /* index */
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conf.nb_samples, /* length */
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if (!fmd->fmod_sample) {
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fmod_logerr2 ("DAC", "Failed to allocate FMOD sample\n");
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channel = FSOUND_PlaySoundEx (FSOUND_FREE, fmd->fmod_sample, 0, 1);
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fmod_logerr2 ("DAC", "Failed to start playing sound\n");
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FSOUND_Sample_Free (fmd->fmod_sample);
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fmd->channel = channel;
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/* FMOD always operates on little endian frames? */
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obt_as.endianness = 0;
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audio_pcm_init_info (&hw->info, &obt_as);
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bits16 = (mode & FSOUND_16BITS) != 0;
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hw->samples = conf.nb_samples;
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static int fmod_ctl_out (HWVoiceOut *hw, int cmd, ...)
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FMODVoiceOut *fmd = (FMODVoiceOut *) hw;
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fmod_clear_sample (fmd);
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status = FSOUND_SetPaused (fmd->channel, 0);
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fmod_logerr ("Failed to resume channel %d\n", fmd->channel);
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status = FSOUND_SetPaused (fmd->channel, 1);
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fmod_logerr ("Failed to pause channel %d\n", fmd->channel);
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static int fmod_init_in (HWVoiceIn *hw, audsettings_t *as)
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FMODVoiceIn *fmd = (FMODVoiceIn *) hw;
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audsettings_t obt_as = *as;
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if (conf.broken_adc) {
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mode = aud_to_fmodfmt (as->fmt, as->nchannels == 2 ? 1 : 0);
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fmd->fmod_sample = FSOUND_Sample_Alloc (
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FSOUND_FREE, /* index */
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conf.nb_samples, /* length */
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if (!fmd->fmod_sample) {
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fmod_logerr2 ("ADC", "Failed to allocate FMOD sample\n");
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/* FMOD always operates on little endian frames? */
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obt_as.endianness = 0;
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audio_pcm_init_info (&hw->info, &obt_as);
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bits16 = (mode & FSOUND_16BITS) != 0;
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hw->samples = conf.nb_samples;
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static void fmod_fini_in (HWVoiceIn *hw)
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FMODVoiceIn *fmd = (FMODVoiceIn *) hw;
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if (fmd->fmod_sample) {
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FSOUND_Record_Stop ();
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FSOUND_Sample_Free (fmd->fmod_sample);
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fmd->fmod_sample = 0;
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static int fmod_run_in (HWVoiceIn *hw)
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FMODVoiceIn *fmd = (FMODVoiceIn *) hw;
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int hwshift = hw->info.shift;
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int live, dead, new_pos, len;
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unsigned int blen1 = 0, blen2 = 0;
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unsigned int len1, len2;
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live = audio_pcm_hw_get_live_in (hw);
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dead = hw->samples - live;
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new_pos = FSOUND_Record_GetPosition ();
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fmod_logerr ("Could not get recording position\n");
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len = audio_ring_dist (new_pos, hw->wpos, hw->samples);
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len = audio_MIN (len, dead);
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if (fmod_lock_sample (fmd->fmod_sample, &fmd->hw.info,
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len1 = blen1 >> hwshift;
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len2 = blen2 >> hwshift;
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hw->conv (hw->conv_buf + hw->wpos, p1, len1, &nominal_volume);
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hw->conv (hw->conv_buf, p2, len2, &nominal_volume);
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fmod_unlock_sample (fmd->fmod_sample, p1, p2, blen1, blen2);
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hw->wpos = (hw->wpos + decr) % hw->samples;
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{"none", FSOUND_OUTPUT_NOSOUND},
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{"winmm", FSOUND_OUTPUT_WINMM},
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{"dsound", FSOUND_OUTPUT_DSOUND},
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{"a3d", FSOUND_OUTPUT_A3D},
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{"asio", FSOUND_OUTPUT_ASIO},
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{"oss", FSOUND_OUTPUT_OSS},
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{"alsa", FSOUND_OUTPUT_ALSA},
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{"esd", FSOUND_OUTPUT_ESD},
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{"mac", FSOUND_OUTPUT_MAC},
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{"xbox", FSOUND_OUTPUT_XBOX},
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{"ps2", FSOUND_OUTPUT_PS2},
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{"gcube", FSOUND_OUTPUT_GC},
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{"none-realtime", FSOUND_OUTPUT_NOSOUND_NONREALTIME}
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static void *fmod_audio_init (void)
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int output_type = -1;
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const char *drv = conf.drvname;
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ver = FSOUND_GetVersion ();
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if (ver < FMOD_VERSION) {
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dolog ("Wrong FMOD version %f, need at least %f\n", ver, FMOD_VERSION);
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dolog ("FMOD before 3.75 has bug preventing ADC from working\n"
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"ADC will be disabled.\n");
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for (i = 0; i < sizeof (drvtab) / sizeof (drvtab[0]); i++) {
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if (!strcmp (drv, drvtab[i].name)) {
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output_type = drvtab[i].type;
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dolog ("Unknown FMOD driver `%s'\n", drv);
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dolog ("Valid drivers:\n");
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for (i = 0; i < sizeof (drvtab) / sizeof (drvtab[0]); i++) {
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dolog (" %s\n", drvtab[i].name);
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if (output_type != -1) {
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status = FSOUND_SetOutput (output_type);
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fmod_logerr ("FSOUND_SetOutput(%d) failed\n", output_type);
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status = FSOUND_SetBufferSize (conf.bufsize);
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fmod_logerr ("FSOUND_SetBufferSize (%d) failed\n", conf.bufsize);
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status = FSOUND_Init (conf.freq, conf.nb_channels, 0);
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fmod_logerr ("FSOUND_Init failed\n");
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static int fmod_read (SWVoiceIn *sw, void *buf, int size)
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return audio_pcm_sw_read (sw, buf, size);
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static int fmod_ctl_in (HWVoiceIn *hw, int cmd, ...)
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FMODVoiceIn *fmd = (FMODVoiceIn *) hw;
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status = FSOUND_Record_StartSample (fmd->fmod_sample, 1);
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fmod_logerr ("Failed to start recording\n");
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status = FSOUND_Record_Stop ();
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fmod_logerr ("Failed to stop recording\n");
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static void fmod_audio_fini (void *opaque)
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static struct audio_option fmod_options[] = {
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{"DRV", AUD_OPT_STR, &conf.drvname,
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"FMOD driver", NULL, 0},
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{"FREQ", AUD_OPT_INT, &conf.freq,
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"Default frequency", NULL, 0},
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{"SAMPLES", AUD_OPT_INT, &conf.nb_samples,
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"Buffer size in samples", NULL, 0},
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{"CHANNELS", AUD_OPT_INT, &conf.nb_channels,
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"Number of default channels (1 - mono, 2 - stereo)", NULL, 0},
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{"BUFSIZE", AUD_OPT_INT, &conf.bufsize,
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"(undocumented)", NULL, 0},
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{"THRESHOLD", AUD_OPT_INT, &conf.threshold,
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{NULL, 0, NULL, NULL, NULL, 0}
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static struct audio_pcm_ops fmod_pcm_ops = {
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struct audio_driver fmod_audio_driver = {
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INIT_FIELD (name = ) "fmod",
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INIT_FIELD (descr = ) "FMOD 3.xx http://www.fmod.org",
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INIT_FIELD (options = ) fmod_options,
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INIT_FIELD (init = ) fmod_audio_init,
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INIT_FIELD (fini = ) fmod_audio_fini,
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INIT_FIELD (pcm_ops = ) &fmod_pcm_ops,
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INIT_FIELD (can_be_default = ) 1,
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INIT_FIELD (max_voices_out = ) INT_MAX,
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INIT_FIELD (max_voices_in = ) INT_MAX,
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INIT_FIELD (voice_size_out = ) sizeof (FMODVoiceOut),
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INIT_FIELD (voice_size_in = ) sizeof (FMODVoiceIn)