9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts/*
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts * QEMU Mixing engine header
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts *
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts * Copyright (c) 2004-2005 Vassili Karpov (malc)
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts *
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts * Permission is hereby granted, free of charge, to any person obtaining a copy
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts * of this software and associated documentation files (the "Software"), to deal
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts * in the Software without restriction, including without limitation the rights
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts * copies of the Software, and to permit persons to whom the Software is
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts * furnished to do so, subject to the following conditions:
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts *
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts * The above copyright notice and this permission notice shall be included in
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts * all copies or substantial portions of the Software.
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts *
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts * THE SOFTWARE.
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts */
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts#ifndef QEMU_MIXENG_H
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts#define QEMU_MIXENG_H
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpottsstruct HWVoiceOut;
9f855439c0665e1336c2aef8a33aec7a605b8418James Phillpotts
#ifdef VBOX
/* use faster ASMMult2xS32RetS64 */
#ifndef VBOX_WITH_PDM_AUDIO_DRIVER
typedef struct { int mute; uint32_t r; uint32_t l; } volume_t;
#endif
typedef struct { int64_t l; int64_t r; } st_sample_t;
#else /* !VBOX */
#ifdef FLOAT_MIXENG
typedef float real_t;
typedef struct { int mute; real_t r; real_t l; } volume_t;
typedef struct { real_t l; real_t r; } st_sample_t;
#else
typedef struct { int mute; int64_t r; int64_t l; } volume_t;
typedef struct { int64_t l; int64_t r; } st_sample_t;
#endif
#endif /* VBOX */
#ifndef VBOX_WITH_PDM_AUDIO_DRIVER
typedef void (t_sample) (st_sample_t *dst, const void *src,
int samples, volume_t *vol);
#endif
typedef void (f_sample) (void *dst, const st_sample_t *src, int samples);
extern t_sample *mixeng_conv[2][2][2][3];
extern f_sample *mixeng_clip[2][2][2][3];
void *st_rate_start (int inrate, int outrate);
void st_rate_flow (void *opaque, st_sample_t *ibuf, st_sample_t *obuf,
int *isamp, int *osamp);
void st_rate_flow_mix (void *opaque, st_sample_t *ibuf, st_sample_t *obuf,
int *isamp, int *osamp);
void st_rate_stop (void *opaque);
# ifdef VBOX_WITH_PDM_AUDIO_DRIVER
void mixeng_clear(PPDMHOSTSTEREOSAMPLE buf, int len);
void mixeng_sniff_and_clear(PPDMHOSTVOICEOUT hw, PPDMHOSTSTEREOSAMPLE src, int len);
# else
void mixeng_clear (st_sample_t *buf, int len);
void mixeng_sniff_and_clear (struct HWVoiceOut *hw, st_sample_t *src, int len);
# endif
#endif /* mixeng.h */