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https://git.proxmox.com/git/qemu
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7372f88dc1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1133 c046a42c-6fe2-441c-8c8c-71466251a162
470 lines
12 KiB
C
470 lines
12 KiB
C
/*
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* QEMU FMOD audio output driver
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*
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* Copyright (c) 2004 Vassili Karpov (malc)
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*
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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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*
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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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*
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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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* THE SOFTWARE.
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*/
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#include <fmod.h>
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#include <fmod_errors.h>
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#include "vl.h"
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#include "audio/audio_int.h"
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typedef struct FMODVoice {
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HWVoice hw;
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unsigned int old_pos;
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FSOUND_SAMPLE *fmod_sample;
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int channel;
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} FMODVoice;
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#define dolog(...) AUD_log ("fmod", __VA_ARGS__)
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#ifdef DEBUG
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#define ldebug(...) dolog (__VA_ARGS__)
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#else
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#define ldebug(...)
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#endif
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#define QC_FMOD_DRV "QEMU_FMOD_DRV"
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#define QC_FMOD_FREQ "QEMU_FMOD_FREQ"
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#define QC_FMOD_SAMPLES "QEMU_FMOD_SAMPLES"
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#define QC_FMOD_CHANNELS "QEMU_FMOD_CHANNELS"
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#define QC_FMOD_BUFSIZE "QEMU_FMOD_BUFSIZE"
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#define QC_FMOD_THRESHOLD "QEMU_FMOD_THRESHOLD"
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static struct {
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int nb_samples;
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int freq;
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int nb_channels;
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int bufsize;
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int threshold;
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} conf = {
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2048,
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44100,
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1,
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0,
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128
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};
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#define errstr() FMOD_ErrorString (FSOUND_GetError ())
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static int fmod_hw_write (SWVoice *sw, void *buf, int len)
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{
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return pcm_hw_write (sw, buf, len);
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}
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static void fmod_clear_sample (FMODVoice *fmd)
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{
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HWVoice *hw = &fmd->hw;
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int status;
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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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fmd->fmod_sample,
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0,
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hw->samples << hw->shift,
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&p1,
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&p2,
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&len1,
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&len2
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);
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if (!status) {
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dolog ("Failed to lock sample\nReason: %s\n", errstr ());
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return;
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}
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if ((len1 & hw->align) || (len2 & hw->align)) {
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dolog ("Locking sample returned unaligned length %d, %d\n",
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len1, len2);
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goto fail;
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}
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if (len1 + len2 != hw->samples << hw->shift) {
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dolog ("Locking sample returned incomplete length %d, %d\n",
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len1 + len2, hw->samples << hw->shift);
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goto fail;
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}
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pcm_hw_clear (hw, p1, hw->samples);
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fail:
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status = FSOUND_Sample_Unlock (fmd->fmod_sample, p1, p2, len1, len2);
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if (!status) {
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dolog ("Failed to unlock sample\nReason: %s\n", errstr ());
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}
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}
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static int fmod_write_sample (HWVoice *hw, uint8_t *dst, st_sample_t *src,
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int src_size, int src_pos, int dst_len)
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{
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int src_len1 = dst_len, src_len2 = 0, pos = src_pos + dst_len;
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st_sample_t *src1 = src + src_pos, *src2 = 0;
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if (src_pos + dst_len > src_size) {
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src_len1 = src_size - src_pos;
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src2 = src;
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src_len2 = dst_len - src_len1;
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pos = src_len2;
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}
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if (src_len1) {
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hw->clip (dst, src1, src_len1);
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memset (src1, 0, src_len1 * sizeof (st_sample_t));
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advance (dst, src_len1);
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}
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if (src_len2) {
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hw->clip (dst, src2, src_len2);
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memset (src2, 0, src_len2 * sizeof (st_sample_t));
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}
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return pos;
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}
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static int fmod_unlock_sample (FMODVoice *fmd, void *p1, void *p2,
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unsigned int blen1, unsigned int blen2)
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{
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int status = FSOUND_Sample_Unlock (fmd->fmod_sample, p1, p2, blen1, blen2);
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if (!status) {
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dolog ("Failed to unlock sample\nReason: %s\n", errstr ());
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return -1;
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}
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return 0;
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}
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static int fmod_lock_sample (FMODVoice *fmd, int pos, int len,
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void **p1, void **p2,
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unsigned int *blen1, unsigned int *blen2)
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{
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HWVoice *hw = &fmd->hw;
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int status;
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status = FSOUND_Sample_Lock (
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fmd->fmod_sample,
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pos << hw->shift,
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len << hw->shift,
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p1,
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p2,
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blen1,
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blen2
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);
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if (!status) {
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dolog ("Failed to lock sample\nReason: %s\n", errstr ());
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return -1;
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}
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if ((*blen1 & hw->align) || (*blen2 & hw->align)) {
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dolog ("Locking sample returned unaligned length %d, %d\n",
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*blen1, *blen2);
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fmod_unlock_sample (fmd, *p1, *p2, *blen1, *blen2);
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return -1;
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}
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return 0;
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}
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static void fmod_hw_run (HWVoice *hw)
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{
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FMODVoice *fmd = (FMODVoice *) hw;
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int rpos, live, decr;
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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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int nb_active;
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live = pcm_hw_get_live2 (hw, &nb_active);
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if (live <= 0) {
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return;
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}
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if (!hw->pending_disable
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&& nb_active
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&& conf.threshold
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&& live <= conf.threshold) {
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ldebug ("live=%d nb_active=%d\n", live, nb_active);
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return;
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}
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decr = live;
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#if 1
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if (fmd->channel >= 0) {
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int pos2 = (fmd->old_pos + decr) % hw->samples;
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int pos = FSOUND_GetCurrentPosition (fmd->channel);
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if (fmd->old_pos < pos && pos2 >= pos) {
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decr = pos - fmd->old_pos - (pos2 == pos) - 1;
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}
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else if (fmd->old_pos > pos && pos2 >= pos && pos2 < fmd->old_pos) {
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decr = (hw->samples - fmd->old_pos) + pos - (pos2 == pos) - 1;
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}
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/* ldebug ("pos=%d pos2=%d old=%d live=%d decr=%d\n", */
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/* pos, pos2, fmd->old_pos, live, decr); */
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}
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#endif
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if (decr <= 0) {
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return;
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}
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if (fmod_lock_sample (fmd, fmd->old_pos, decr, &p1, &p2, &blen1, &blen2)) {
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return;
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}
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len1 = blen1 >> hw->shift;
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len2 = blen2 >> hw->shift;
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ldebug ("%p %p %d %d %d %d\n", p1, p2, len1, len2, blen1, blen2);
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decr = len1 + len2;
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rpos = hw->rpos;
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if (len1) {
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rpos = fmod_write_sample (hw, p1, hw->mix_buf, hw->samples, rpos, len1);
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}
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if (len2) {
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rpos = fmod_write_sample (hw, p2, hw->mix_buf, hw->samples, rpos, len2);
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}
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fmod_unlock_sample (fmd, p1, p2, blen1, blen2);
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pcm_hw_dec_live (hw, decr);
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hw->rpos = rpos % hw->samples;
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fmd->old_pos = (fmd->old_pos + decr) % hw->samples;
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}
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static int AUD_to_fmodfmt (audfmt_e fmt, int stereo)
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{
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int mode = FSOUND_LOOP_NORMAL;
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switch (fmt) {
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case AUD_FMT_S8:
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mode |= FSOUND_SIGNED | FSOUND_8BITS;
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break;
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case AUD_FMT_U8:
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mode |= FSOUND_UNSIGNED | FSOUND_8BITS;
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break;
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case AUD_FMT_S16:
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mode |= FSOUND_SIGNED | FSOUND_16BITS;
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break;
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case AUD_FMT_U16:
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mode |= FSOUND_UNSIGNED | FSOUND_16BITS;
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break;
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default:
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dolog ("Internal logic error: Bad audio format %d\nAborting\n", fmt);
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exit (EXIT_FAILURE);
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}
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mode |= stereo ? FSOUND_STEREO : FSOUND_MONO;
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return mode;
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}
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static void fmod_hw_fini (HWVoice *hw)
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{
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FMODVoice *fmd = (FMODVoice *) 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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}
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}
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}
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static int fmod_hw_init (HWVoice *hw, int freq, int nchannels, audfmt_e fmt)
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{
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int bits16, mode, channel;
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FMODVoice *fmd = (FMODVoice *) hw;
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mode = AUD_to_fmodfmt (fmt, 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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mode, /* mode */
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freq, /* freq */
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255, /* volume */
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128, /* pan */
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255 /* priority */
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);
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if (!fmd->fmod_sample) {
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dolog ("Failed to allocate FMOD sample\nReason: %s\n", errstr ());
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return -1;
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}
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channel = FSOUND_PlaySoundEx (FSOUND_FREE, fmd->fmod_sample, 0, 1);
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if (channel < 0) {
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dolog ("Failed to start playing sound\nReason: %s\n", errstr ());
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FSOUND_Sample_Free (fmd->fmod_sample);
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return -1;
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}
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fmd->channel = channel;
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hw->freq = freq;
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hw->fmt = fmt;
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hw->nchannels = nchannels;
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bits16 = fmt == AUD_FMT_U16 || fmt == AUD_FMT_S16;
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hw->bufsize = conf.nb_samples << (nchannels == 2) << bits16;
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return 0;
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}
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static int fmod_hw_ctl (HWVoice *hw, int cmd, ...)
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{
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int status;
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FMODVoice *fmd = (FMODVoice *) hw;
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switch (cmd) {
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case VOICE_ENABLE:
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fmod_clear_sample (fmd);
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status = FSOUND_SetPaused (fmd->channel, 0);
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if (!status) {
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dolog ("Failed to resume channel %d\nReason: %s\n",
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fmd->channel, errstr ());
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}
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break;
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case VOICE_DISABLE:
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status = FSOUND_SetPaused (fmd->channel, 1);
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if (!status) {
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dolog ("Failed to pause channel %d\nReason: %s\n",
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fmd->channel, errstr ());
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}
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break;
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}
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return 0;
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}
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static struct {
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const char *name;
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int type;
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} drvtab[] = {
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{"none", FSOUND_OUTPUT_NOSOUND},
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#ifdef _WIN32
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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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#endif
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#ifdef __linux__
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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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#endif
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#ifdef __APPLE__
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{"mac", FSOUND_OUTPUT_MAC},
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#endif
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#if 0
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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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#endif
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{"nort", FSOUND_OUTPUT_NOSOUND_NONREALTIME}
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};
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static void *fmod_audio_init (void)
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{
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int i;
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double ver;
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int status;
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int output_type = -1;
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const char *drv = audio_get_conf_str (QC_FMOD_DRV, NULL);
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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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return NULL;
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}
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if (drv) {
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int found = 0;
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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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found = 1;
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break;
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}
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}
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if (!found) {
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dolog ("Unknown FMOD output driver `%s'\n", drv);
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}
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}
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if (output_type != -1) {
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status = FSOUND_SetOutput (output_type);
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if (!status) {
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dolog ("FSOUND_SetOutput(%d) failed\nReason: %s\n",
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output_type, errstr ());
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return NULL;
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}
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}
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conf.freq = audio_get_conf_int (QC_FMOD_FREQ, conf.freq);
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conf.nb_samples = audio_get_conf_int (QC_FMOD_SAMPLES, conf.nb_samples);
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conf.nb_channels =
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audio_get_conf_int (QC_FMOD_CHANNELS,
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(audio_state.nb_hw_voices > 1
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? audio_state.nb_hw_voices
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: conf.nb_channels));
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conf.bufsize = audio_get_conf_int (QC_FMOD_BUFSIZE, conf.bufsize);
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conf.threshold = audio_get_conf_int (QC_FMOD_THRESHOLD, conf.threshold);
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if (conf.bufsize) {
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status = FSOUND_SetBufferSize (conf.bufsize);
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if (!status) {
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dolog ("FSOUND_SetBufferSize (%d) failed\nReason: %s\n",
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conf.bufsize, errstr ());
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}
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}
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status = FSOUND_Init (conf.freq, conf.nb_channels, 0);
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if (!status) {
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dolog ("FSOUND_Init failed\nReason: %s\n", errstr ());
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return NULL;
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}
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return &conf;
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}
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static void fmod_audio_fini (void *opaque)
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{
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FSOUND_Close ();
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}
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struct pcm_ops fmod_pcm_ops = {
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fmod_hw_init,
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fmod_hw_fini,
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fmod_hw_run,
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fmod_hw_write,
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fmod_hw_ctl
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};
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struct audio_output_driver fmod_output_driver = {
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"fmod",
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fmod_audio_init,
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fmod_audio_fini,
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&fmod_pcm_ops,
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1,
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INT_MAX,
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sizeof (FMODVoice)
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};
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