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/*
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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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|
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#include "audio/audio_int.h" |
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|
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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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|
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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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|
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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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|
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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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|
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#define errstr() FMOD_ErrorString (FSOUND_GetError ())
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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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if (decr <= 0) { |
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return;
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} |
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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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|
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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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|
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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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|
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fmod_unlock_sample (fmd, p1, p2, blen1, blen2); |
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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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static void fmod_hw_fini (HWVoice *hw) |
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{ |
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FMODVoice *fmd = (FMODVoice *) hw; |
283 |
|
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if (fmd->fmod_sample) {
|
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FSOUND_Sample_Free (fmd->fmod_sample); |
286 |
fmd->fmod_sample = 0;
|
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|
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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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} |
293 |
|
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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; |
298 |
|
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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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); |
309 |
|
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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; |
313 |
} |
314 |
|
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channel = FSOUND_PlaySoundEx (FSOUND_FREE, fmd->fmod_sample, 0, 1); |
316 |
if (channel < 0) { |
317 |
dolog ("Failed to start playing sound\nReason: %s\n", errstr ());
|
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FSOUND_Sample_Free (fmd->fmod_sample); |
319 |
return -1; |
320 |
} |
321 |
fmd->channel = channel; |
322 |
|
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hw->freq = freq; |
324 |
hw->fmt = fmt; |
325 |
hw->nchannels = nchannels; |
326 |
bits16 = fmt == AUD_FMT_U16 || fmt == AUD_FMT_S16; |
327 |
hw->bufsize = conf.nb_samples << (nchannels == 2) << bits16;
|
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return 0; |
329 |
} |
330 |
|
331 |
static int fmod_hw_ctl (HWVoice *hw, int cmd, ...) |
332 |
{ |
333 |
int status;
|
334 |
FMODVoice *fmd = (FMODVoice *) hw; |
335 |
|
336 |
switch (cmd) {
|
337 |
case VOICE_ENABLE:
|
338 |
fmod_clear_sample (fmd); |
339 |
status = FSOUND_SetPaused (fmd->channel, 0);
|
340 |
if (!status) {
|
341 |
dolog ("Failed to resume channel %d\nReason: %s\n",
|
342 |
fmd->channel, errstr ()); |
343 |
} |
344 |
break;
|
345 |
|
346 |
case VOICE_DISABLE:
|
347 |
status = FSOUND_SetPaused (fmd->channel, 1);
|
348 |
if (!status) {
|
349 |
dolog ("Failed to pause channel %d\nReason: %s\n",
|
350 |
fmd->channel, errstr ()); |
351 |
} |
352 |
break;
|
353 |
} |
354 |
return 0; |
355 |
} |
356 |
|
357 |
static struct { |
358 |
const char *name; |
359 |
int type;
|
360 |
} drvtab[] = { |
361 |
{"none", FSOUND_OUTPUT_NOSOUND},
|
362 |
#ifdef _WIN32
|
363 |
{"winmm", FSOUND_OUTPUT_WINMM},
|
364 |
{"dsound", FSOUND_OUTPUT_DSOUND},
|
365 |
{"a3d", FSOUND_OUTPUT_A3D},
|
366 |
{"asio", FSOUND_OUTPUT_ASIO},
|
367 |
#endif
|
368 |
#ifdef __linux__
|
369 |
{"oss", FSOUND_OUTPUT_OSS},
|
370 |
{"alsa", FSOUND_OUTPUT_ALSA},
|
371 |
{"esd", FSOUND_OUTPUT_ESD},
|
372 |
#endif
|
373 |
#ifdef __APPLE__
|
374 |
{"mac", FSOUND_OUTPUT_MAC},
|
375 |
#endif
|
376 |
#if 0
|
377 |
{"xbox", FSOUND_OUTPUT_XBOX},
|
378 |
{"ps2", FSOUND_OUTPUT_PS2},
|
379 |
{"gcube", FSOUND_OUTPUT_GC},
|
380 |
#endif
|
381 |
{"nort", FSOUND_OUTPUT_NOSOUND_NONREALTIME}
|
382 |
}; |
383 |
|
384 |
static void *fmod_audio_init (void) |
385 |
{ |
386 |
int i;
|
387 |
double ver;
|
388 |
int status;
|
389 |
int output_type = -1; |
390 |
const char *drv = audio_get_conf_str (QC_FMOD_DRV, NULL); |
391 |
|
392 |
ver = FSOUND_GetVersion (); |
393 |
if (ver < FMOD_VERSION) {
|
394 |
dolog ("Wrong FMOD version %f, need at least %f\n", ver, FMOD_VERSION);
|
395 |
return NULL; |
396 |
} |
397 |
|
398 |
if (drv) {
|
399 |
int found = 0; |
400 |
for (i = 0; i < sizeof (drvtab) / sizeof (drvtab[0]); i++) { |
401 |
if (!strcmp (drv, drvtab[i].name)) {
|
402 |
output_type = drvtab[i].type; |
403 |
found = 1;
|
404 |
break;
|
405 |
} |
406 |
} |
407 |
if (!found) {
|
408 |
dolog ("Unknown FMOD output driver `%s'\n", drv);
|
409 |
} |
410 |
} |
411 |
|
412 |
if (output_type != -1) { |
413 |
status = FSOUND_SetOutput (output_type); |
414 |
if (!status) {
|
415 |
dolog ("FSOUND_SetOutput(%d) failed\nReason: %s\n",
|
416 |
output_type, errstr ()); |
417 |
return NULL; |
418 |
} |
419 |
} |
420 |
|
421 |
conf.freq = audio_get_conf_int (QC_FMOD_FREQ, conf.freq); |
422 |
conf.nb_samples = audio_get_conf_int (QC_FMOD_SAMPLES, conf.nb_samples); |
423 |
conf.nb_channels = |
424 |
audio_get_conf_int (QC_FMOD_CHANNELS, |
425 |
(audio_state.nb_hw_voices > 1
|
426 |
? audio_state.nb_hw_voices |
427 |
: conf.nb_channels)); |
428 |
conf.bufsize = audio_get_conf_int (QC_FMOD_BUFSIZE, conf.bufsize); |
429 |
conf.threshold = audio_get_conf_int (QC_FMOD_THRESHOLD, conf.threshold); |
430 |
|
431 |
if (conf.bufsize) {
|
432 |
status = FSOUND_SetBufferSize (conf.bufsize); |
433 |
if (!status) {
|
434 |
dolog ("FSOUND_SetBufferSize (%d) failed\nReason: %s\n",
|
435 |
conf.bufsize, errstr ()); |
436 |
} |
437 |
} |
438 |
|
439 |
status = FSOUND_Init (conf.freq, conf.nb_channels, 0);
|
440 |
if (!status) {
|
441 |
dolog ("FSOUND_Init failed\nReason: %s\n", errstr ());
|
442 |
return NULL; |
443 |
} |
444 |
|
445 |
return &conf;
|
446 |
} |
447 |
|
448 |
static void fmod_audio_fini (void *opaque) |
449 |
{ |
450 |
FSOUND_Close (); |
451 |
} |
452 |
|
453 |
struct pcm_ops fmod_pcm_ops = {
|
454 |
fmod_hw_init, |
455 |
fmod_hw_fini, |
456 |
fmod_hw_run, |
457 |
fmod_hw_write, |
458 |
fmod_hw_ctl |
459 |
}; |
460 |
|
461 |
struct audio_output_driver fmod_output_driver = {
|
462 |
"fmod",
|
463 |
fmod_audio_init, |
464 |
fmod_audio_fini, |
465 |
&fmod_pcm_ops, |
466 |
1,
|
467 |
INT_MAX, |
468 |
sizeof (FMODVoice)
|
469 |
}; |