c01b245623
If the audio backend is capable of volume control, don't apply software volume (mixeng_volume ()), but instead, rely on backend volume control. This will allow guest to have full range volume control. Signed-off-by: Marc-Andr? Lureau <marcandre.lureau@redhat.com> Signed-off-by: malc <av1474@comtv.ru>
289 lines
7.2 KiB
C
289 lines
7.2 KiB
C
/*
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* QEMU Audio subsystem header
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*
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* Copyright (c) 2003-2005 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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#ifndef QEMU_AUDIO_INT_H
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#define QEMU_AUDIO_INT_H
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#ifdef CONFIG_COREAUDIO
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#define FLOAT_MIXENG
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/* #define RECIPROCAL */
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#endif
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#include "mixeng.h"
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struct audio_pcm_ops;
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typedef enum {
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AUD_OPT_INT,
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AUD_OPT_FMT,
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AUD_OPT_STR,
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AUD_OPT_BOOL
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} audio_option_tag_e;
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struct audio_option {
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const char *name;
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audio_option_tag_e tag;
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void *valp;
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const char *descr;
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int *overriddenp;
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int overridden;
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};
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struct audio_callback {
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void *opaque;
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audio_callback_fn fn;
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};
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struct audio_pcm_info {
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int bits;
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int sign;
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int freq;
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int nchannels;
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int align;
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int shift;
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int bytes_per_second;
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int swap_endianness;
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};
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typedef struct SWVoiceCap SWVoiceCap;
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typedef struct HWVoiceOut {
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int enabled;
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int poll_mode;
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int pending_disable;
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struct audio_pcm_info info;
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f_sample *clip;
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int rpos;
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uint64_t ts_helper;
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struct st_sample *mix_buf;
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int samples;
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QLIST_HEAD (sw_out_listhead, SWVoiceOut) sw_head;
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QLIST_HEAD (sw_cap_listhead, SWVoiceCap) cap_head;
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int ctl_caps;
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struct audio_pcm_ops *pcm_ops;
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QLIST_ENTRY (HWVoiceOut) entries;
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} HWVoiceOut;
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typedef struct HWVoiceIn {
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int enabled;
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int poll_mode;
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struct audio_pcm_info info;
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t_sample *conv;
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int wpos;
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int total_samples_captured;
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uint64_t ts_helper;
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struct st_sample *conv_buf;
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int samples;
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QLIST_HEAD (sw_in_listhead, SWVoiceIn) sw_head;
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int ctl_caps;
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struct audio_pcm_ops *pcm_ops;
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QLIST_ENTRY (HWVoiceIn) entries;
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} HWVoiceIn;
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struct SWVoiceOut {
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QEMUSoundCard *card;
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struct audio_pcm_info info;
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t_sample *conv;
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int64_t ratio;
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struct st_sample *buf;
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void *rate;
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int total_hw_samples_mixed;
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int active;
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int empty;
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HWVoiceOut *hw;
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char *name;
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struct mixeng_volume vol;
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struct audio_callback callback;
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QLIST_ENTRY (SWVoiceOut) entries;
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};
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struct SWVoiceIn {
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QEMUSoundCard *card;
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int active;
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struct audio_pcm_info info;
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int64_t ratio;
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void *rate;
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int total_hw_samples_acquired;
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struct st_sample *buf;
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f_sample *clip;
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HWVoiceIn *hw;
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char *name;
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struct mixeng_volume vol;
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struct audio_callback callback;
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QLIST_ENTRY (SWVoiceIn) entries;
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};
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struct audio_driver {
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const char *name;
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const char *descr;
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struct audio_option *options;
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void *(*init) (void);
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void (*fini) (void *);
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struct audio_pcm_ops *pcm_ops;
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int can_be_default;
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int max_voices_out;
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int max_voices_in;
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int voice_size_out;
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int voice_size_in;
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int ctl_caps;
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};
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struct audio_pcm_ops {
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int (*init_out)(HWVoiceOut *hw, struct audsettings *as);
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void (*fini_out)(HWVoiceOut *hw);
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int (*run_out) (HWVoiceOut *hw, int live);
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int (*write) (SWVoiceOut *sw, void *buf, int size);
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int (*ctl_out) (HWVoiceOut *hw, int cmd, ...);
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int (*init_in) (HWVoiceIn *hw, struct audsettings *as);
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void (*fini_in) (HWVoiceIn *hw);
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int (*run_in) (HWVoiceIn *hw);
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int (*read) (SWVoiceIn *sw, void *buf, int size);
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int (*ctl_in) (HWVoiceIn *hw, int cmd, ...);
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};
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struct capture_callback {
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struct audio_capture_ops ops;
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void *opaque;
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QLIST_ENTRY (capture_callback) entries;
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};
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struct CaptureVoiceOut {
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HWVoiceOut hw;
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void *buf;
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QLIST_HEAD (cb_listhead, capture_callback) cb_head;
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QLIST_ENTRY (CaptureVoiceOut) entries;
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};
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struct SWVoiceCap {
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SWVoiceOut sw;
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CaptureVoiceOut *cap;
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QLIST_ENTRY (SWVoiceCap) entries;
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};
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struct AudioState {
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struct audio_driver *drv;
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void *drv_opaque;
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QEMUTimer *ts;
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QLIST_HEAD (card_listhead, QEMUSoundCard) card_head;
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QLIST_HEAD (hw_in_listhead, HWVoiceIn) hw_head_in;
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QLIST_HEAD (hw_out_listhead, HWVoiceOut) hw_head_out;
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QLIST_HEAD (cap_listhead, CaptureVoiceOut) cap_head;
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int nb_hw_voices_out;
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int nb_hw_voices_in;
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int vm_running;
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};
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extern struct audio_driver no_audio_driver;
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extern struct audio_driver oss_audio_driver;
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extern struct audio_driver sdl_audio_driver;
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extern struct audio_driver wav_audio_driver;
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extern struct audio_driver fmod_audio_driver;
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extern struct audio_driver alsa_audio_driver;
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extern struct audio_driver coreaudio_audio_driver;
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extern struct audio_driver dsound_audio_driver;
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extern struct audio_driver esd_audio_driver;
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extern struct audio_driver pa_audio_driver;
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extern struct audio_driver spice_audio_driver;
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extern struct audio_driver winwave_audio_driver;
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extern const struct mixeng_volume nominal_volume;
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void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as);
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void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len);
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int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int len);
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int audio_pcm_hw_get_live_in (HWVoiceIn *hw);
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int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int len);
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int audio_pcm_hw_clip_out (HWVoiceOut *hw, void *pcm_buf,
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int live, int pending);
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int audio_bug (const char *funcname, int cond);
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void *audio_calloc (const char *funcname, int nmemb, size_t size);
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void audio_run (const char *msg);
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#define VOICE_ENABLE 1
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#define VOICE_DISABLE 2
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#define VOICE_VOLUME 3
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#define VOICE_VOLUME_CAP (1 << VOICE_VOLUME)
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static inline int audio_ring_dist (int dst, int src, int len)
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{
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return (dst >= src) ? (dst - src) : (len - src + dst);
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}
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static void GCC_ATTR dolog (const char *fmt, ...)
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{
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va_list ap;
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va_start (ap, fmt);
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AUD_vlog (AUDIO_CAP, fmt, ap);
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va_end (ap);
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}
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#ifdef DEBUG
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static void GCC_ATTR ldebug (const char *fmt, ...)
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{
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va_list ap;
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va_start (ap, fmt);
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AUD_vlog (AUDIO_CAP, fmt, ap);
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va_end (ap);
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}
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#else
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#if defined NDEBUG && defined __GNUC__
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#define ldebug(...)
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#elif defined NDEBUG && defined _MSC_VER
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#define ldebug __noop
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#else
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static void GCC_ATTR ldebug (const char *fmt, ...)
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{
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(void) fmt;
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}
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#endif
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#endif
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#undef GCC_ATTR
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#define AUDIO_STRINGIFY_(n) #n
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#define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n)
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#if defined _MSC_VER || defined __GNUC__
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#define AUDIO_FUNC __FUNCTION__
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#else
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#define AUDIO_FUNC __FILE__ ":" AUDIO_STRINGIFY (__LINE__)
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#endif
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#endif /* audio_int.h */
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