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/*
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* QEMU Audio subsystem
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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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#include "hw/hw.h" |
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#include "audio.h" |
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#include "console.h" |
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#include "qemu-timer.h" |
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#include "sysemu.h" |
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#define AUDIO_CAP "audio" |
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#include "audio_int.h" |
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/* #define DEBUG_PLIVE */
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/* #define DEBUG_LIVE */
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/* #define DEBUG_OUT */
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/* #define DEBUG_CAPTURE */
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#define SW_NAME(sw) (sw)->name ? (sw)->name : "unknown" |
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static struct audio_driver *drvtab[] = { |
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AUDIO_DRIVERS |
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&no_audio_driver, |
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&wav_audio_driver |
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}; |
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|
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struct fixed_settings {
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int enabled;
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int nb_voices;
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int greedy;
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struct audsettings settings;
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}; |
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static struct { |
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struct fixed_settings fixed_out;
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struct fixed_settings fixed_in;
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union {
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int hertz;
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int64_t ticks; |
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} period; |
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int plive;
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int log_to_monitor;
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} conf = { |
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{ /* DAC fixed settings */
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1, /* enabled */ |
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1, /* nb_voices */ |
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1, /* greedy */ |
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{ |
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44100, /* freq */ |
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2, /* nchannels */ |
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AUD_FMT_S16, /* fmt */
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AUDIO_HOST_ENDIANNESS |
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} |
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}, |
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{ /* ADC fixed settings */
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1, /* enabled */ |
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1, /* nb_voices */ |
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1, /* greedy */ |
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{ |
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44100, /* freq */ |
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2, /* nchannels */ |
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AUD_FMT_S16, /* fmt */
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AUDIO_HOST_ENDIANNESS |
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} |
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}, |
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{ 250 }, /* period */ |
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0, /* plive */ |
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0 /* log_to_monitor */ |
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}; |
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static AudioState glob_audio_state;
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struct mixeng_volume nominal_volume = {
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0,
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#ifdef FLOAT_MIXENG
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1.0, |
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1.0 |
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#else
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1ULL << 32, |
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1ULL << 32 |
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#endif
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}; |
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/* http://www.df.lth.se/~john_e/gems/gem002d.html */
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/* http://www.multi-platforms.com/Tips/PopCount.htm */
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uint32_t popcount (uint32_t u) |
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{ |
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u = ((u&0x55555555) + ((u>>1)&0x55555555)); |
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u = ((u&0x33333333) + ((u>>2)&0x33333333)); |
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u = ((u&0x0f0f0f0f) + ((u>>4)&0x0f0f0f0f)); |
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u = ((u&0x00ff00ff) + ((u>>8)&0x00ff00ff)); |
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u = ( u&0x0000ffff) + (u>>16); |
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return u;
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} |
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inline uint32_t lsbindex (uint32_t u)
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{ |
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return popcount ((u&-u)-1); |
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} |
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#ifdef AUDIO_IS_FLAWLESS_AND_NO_CHECKS_ARE_REQURIED
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#error No its not
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#else
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int audio_bug (const char *funcname, int cond) |
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{ |
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if (cond) {
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static int shown; |
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AUD_log (NULL, "A bug was just triggered in %s\n", funcname); |
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if (!shown) {
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shown = 1;
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AUD_log (NULL, "Save all your work and restart without audio\n"); |
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AUD_log (NULL, "Please send bug report to malc@pulsesoft.com\n"); |
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AUD_log (NULL, "I am sorry\n"); |
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} |
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AUD_log (NULL, "Context:\n"); |
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#if defined AUDIO_BREAKPOINT_ON_BUG
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# if defined HOST_I386
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# if defined __GNUC__
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__asm__ ("int3");
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# elif defined _MSC_VER
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_asm _emit 0xcc;
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# else
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abort (); |
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# endif
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# else
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abort (); |
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# endif
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#endif
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} |
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return cond;
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} |
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#endif
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static inline int audio_bits_to_index (int bits) |
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{ |
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switch (bits) {
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case 8: |
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return 0; |
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case 16: |
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return 1; |
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case 32: |
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return 2; |
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default:
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audio_bug ("bits_to_index", 1); |
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AUD_log (NULL, "invalid bits %d\n", bits); |
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return 0; |
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} |
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} |
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void *audio_calloc (const char *funcname, int nmemb, size_t size) |
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{ |
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int cond;
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size_t len; |
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len = nmemb * size; |
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cond = !nmemb || !size; |
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cond |= nmemb < 0;
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cond |= len < size; |
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if (audio_bug ("audio_calloc", cond)) { |
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AUD_log (NULL, "%s passed invalid arguments to audio_calloc\n", |
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funcname); |
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AUD_log (NULL, "nmemb=%d size=%zu (len=%zu)\n", nmemb, size, len); |
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return NULL; |
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} |
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return qemu_mallocz (len);
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} |
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static char *audio_alloc_prefix (const char *s) |
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{ |
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const char qemu_prefix[] = "QEMU_"; |
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size_t len; |
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char *r;
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if (!s) {
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return NULL; |
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} |
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len = strlen (s); |
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r = qemu_malloc (len + sizeof (qemu_prefix));
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if (r) {
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size_t i; |
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char *u = r + sizeof (qemu_prefix) - 1; |
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pstrcpy (r, len + sizeof (qemu_prefix), qemu_prefix);
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pstrcat (r, len + sizeof (qemu_prefix), s);
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for (i = 0; i < len; ++i) { |
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u[i] = qemu_toupper(u[i]); |
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} |
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} |
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return r;
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} |
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static const char *audio_audfmt_to_string (audfmt_e fmt) |
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{ |
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switch (fmt) {
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case AUD_FMT_U8:
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return "U8"; |
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case AUD_FMT_U16:
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return "U16"; |
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case AUD_FMT_S8:
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return "S8"; |
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case AUD_FMT_S16:
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return "S16"; |
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case AUD_FMT_U32:
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return "U32"; |
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case AUD_FMT_S32:
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return "S32"; |
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} |
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dolog ("Bogus audfmt %d returning S16\n", fmt);
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return "S16"; |
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} |
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static audfmt_e audio_string_to_audfmt (const char *s, audfmt_e defval, |
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int *defaultp)
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{ |
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if (!strcasecmp (s, "u8")) { |
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*defaultp = 0;
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return AUD_FMT_U8;
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} |
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else if (!strcasecmp (s, "u16")) { |
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*defaultp = 0;
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return AUD_FMT_U16;
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} |
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else if (!strcasecmp (s, "u32")) { |
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*defaultp = 0;
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return AUD_FMT_U32;
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} |
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else if (!strcasecmp (s, "s8")) { |
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*defaultp = 0;
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return AUD_FMT_S8;
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} |
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else if (!strcasecmp (s, "s16")) { |
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*defaultp = 0;
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return AUD_FMT_S16;
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} |
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else if (!strcasecmp (s, "s32")) { |
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*defaultp = 0;
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return AUD_FMT_S32;
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} |
277 |
else {
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dolog ("Bogus audio format `%s' using %s\n",
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s, audio_audfmt_to_string (defval)); |
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*defaultp = 1;
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return defval;
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} |
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} |
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static audfmt_e audio_get_conf_fmt (const char *envname, |
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audfmt_e defval, |
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int *defaultp)
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{ |
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const char *var = getenv (envname); |
290 |
if (!var) {
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*defaultp = 1;
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return defval;
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} |
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return audio_string_to_audfmt (var, defval, defaultp);
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} |
296 |
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static int audio_get_conf_int (const char *key, int defval, int *defaultp) |
298 |
{ |
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int val;
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char *strval;
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strval = getenv (key); |
303 |
if (strval) {
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*defaultp = 0;
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val = atoi (strval); |
306 |
return val;
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} |
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else {
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*defaultp = 1;
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return defval;
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} |
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} |
313 |
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static const char *audio_get_conf_str (const char *key, |
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const char *defval, |
316 |
int *defaultp)
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{ |
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const char *val = getenv (key); |
319 |
if (!val) {
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*defaultp = 1;
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return defval;
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} |
323 |
else {
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*defaultp = 0;
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return val;
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} |
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} |
328 |
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void AUD_vlog (const char *cap, const char *fmt, va_list ap) |
330 |
{ |
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if (conf.log_to_monitor) {
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if (cap) {
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term_printf ("%s: ", cap);
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} |
335 |
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term_vprintf (fmt, ap); |
337 |
} |
338 |
else {
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if (cap) {
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fprintf (stderr, "%s: ", cap);
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} |
342 |
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vfprintf (stderr, fmt, ap); |
344 |
} |
345 |
} |
346 |
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void AUD_log (const char *cap, const char *fmt, ...) |
348 |
{ |
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va_list ap; |
350 |
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va_start (ap, fmt); |
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AUD_vlog (cap, fmt, ap); |
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va_end (ap); |
354 |
} |
355 |
|
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static void audio_print_options (const char *prefix, |
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struct audio_option *opt)
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{ |
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char *uprefix;
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360 |
|
361 |
if (!prefix) {
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dolog ("No prefix specified\n");
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return;
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364 |
} |
365 |
|
366 |
if (!opt) {
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dolog ("No options\n");
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368 |
return;
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} |
370 |
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371 |
uprefix = audio_alloc_prefix (prefix); |
372 |
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373 |
for (; opt->name; opt++) {
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374 |
const char *state = "default"; |
375 |
printf (" %s_%s: ", uprefix, opt->name);
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376 |
|
377 |
if (opt->overriddenp && *opt->overriddenp) {
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state = "current";
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} |
380 |
|
381 |
switch (opt->tag) {
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382 |
case AUD_OPT_BOOL:
|
383 |
{ |
384 |
int *intp = opt->valp;
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385 |
printf ("boolean, %s = %d\n", state, *intp ? 1 : 0); |
386 |
} |
387 |
break;
|
388 |
|
389 |
case AUD_OPT_INT:
|
390 |
{ |
391 |
int *intp = opt->valp;
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392 |
printf ("integer, %s = %d\n", state, *intp);
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393 |
} |
394 |
break;
|
395 |
|
396 |
case AUD_OPT_FMT:
|
397 |
{ |
398 |
audfmt_e *fmtp = opt->valp; |
399 |
printf ( |
400 |
"format, %s = %s, (one of: U8 S8 U16 S16 U32 S32)\n",
|
401 |
state, |
402 |
audio_audfmt_to_string (*fmtp) |
403 |
); |
404 |
} |
405 |
break;
|
406 |
|
407 |
case AUD_OPT_STR:
|
408 |
{ |
409 |
const char **strp = opt->valp; |
410 |
printf ("string, %s = %s\n",
|
411 |
state, |
412 |
*strp ? *strp : "(not set)");
|
413 |
} |
414 |
break;
|
415 |
|
416 |
default:
|
417 |
printf ("???\n");
|
418 |
dolog ("Bad value tag for option %s_%s %d\n",
|
419 |
uprefix, opt->name, opt->tag); |
420 |
break;
|
421 |
} |
422 |
printf (" %s\n", opt->descr);
|
423 |
} |
424 |
|
425 |
qemu_free (uprefix); |
426 |
} |
427 |
|
428 |
static void audio_process_options (const char *prefix, |
429 |
struct audio_option *opt)
|
430 |
{ |
431 |
char *optname;
|
432 |
const char qemu_prefix[] = "QEMU_"; |
433 |
size_t preflen, optlen; |
434 |
|
435 |
if (audio_bug (AUDIO_FUNC, !prefix)) {
|
436 |
dolog ("prefix = NULL\n");
|
437 |
return;
|
438 |
} |
439 |
|
440 |
if (audio_bug (AUDIO_FUNC, !opt)) {
|
441 |
dolog ("opt = NULL\n");
|
442 |
return;
|
443 |
} |
444 |
|
445 |
preflen = strlen (prefix); |
446 |
|
447 |
for (; opt->name; opt++) {
|
448 |
size_t len, i; |
449 |
int def;
|
450 |
|
451 |
if (!opt->valp) {
|
452 |
dolog ("Option value pointer for `%s' is not set\n",
|
453 |
opt->name); |
454 |
continue;
|
455 |
} |
456 |
|
457 |
len = strlen (opt->name); |
458 |
/* len of opt->name + len of prefix + size of qemu_prefix
|
459 |
* (includes trailing zero) + zero + underscore (on behalf of
|
460 |
* sizeof) */
|
461 |
optlen = len + preflen + sizeof (qemu_prefix) + 1; |
462 |
optname = qemu_malloc (optlen); |
463 |
if (!optname) {
|
464 |
dolog ("Could not allocate memory for option name `%s'\n",
|
465 |
opt->name); |
466 |
continue;
|
467 |
} |
468 |
|
469 |
pstrcpy (optname, optlen, qemu_prefix); |
470 |
|
471 |
/* copy while upper-casing, including trailing zero */
|
472 |
for (i = 0; i <= preflen; ++i) { |
473 |
optname[i + sizeof (qemu_prefix) - 1] = qemu_toupper(prefix[i]); |
474 |
} |
475 |
pstrcat (optname, optlen, "_");
|
476 |
pstrcat (optname, optlen, opt->name); |
477 |
|
478 |
def = 1;
|
479 |
switch (opt->tag) {
|
480 |
case AUD_OPT_BOOL:
|
481 |
case AUD_OPT_INT:
|
482 |
{ |
483 |
int *intp = opt->valp;
|
484 |
*intp = audio_get_conf_int (optname, *intp, &def); |
485 |
} |
486 |
break;
|
487 |
|
488 |
case AUD_OPT_FMT:
|
489 |
{ |
490 |
audfmt_e *fmtp = opt->valp; |
491 |
*fmtp = audio_get_conf_fmt (optname, *fmtp, &def); |
492 |
} |
493 |
break;
|
494 |
|
495 |
case AUD_OPT_STR:
|
496 |
{ |
497 |
const char **strp = opt->valp; |
498 |
*strp = audio_get_conf_str (optname, *strp, &def); |
499 |
} |
500 |
break;
|
501 |
|
502 |
default:
|
503 |
dolog ("Bad value tag for option `%s' - %d\n",
|
504 |
optname, opt->tag); |
505 |
break;
|
506 |
} |
507 |
|
508 |
if (!opt->overriddenp) {
|
509 |
opt->overriddenp = &opt->overridden; |
510 |
} |
511 |
*opt->overriddenp = !def; |
512 |
qemu_free (optname); |
513 |
} |
514 |
} |
515 |
|
516 |
static void audio_print_settings (struct audsettings *as) |
517 |
{ |
518 |
dolog ("frequency=%d nchannels=%d fmt=", as->freq, as->nchannels);
|
519 |
|
520 |
switch (as->fmt) {
|
521 |
case AUD_FMT_S8:
|
522 |
AUD_log (NULL, "S8"); |
523 |
break;
|
524 |
case AUD_FMT_U8:
|
525 |
AUD_log (NULL, "U8"); |
526 |
break;
|
527 |
case AUD_FMT_S16:
|
528 |
AUD_log (NULL, "S16"); |
529 |
break;
|
530 |
case AUD_FMT_U16:
|
531 |
AUD_log (NULL, "U16"); |
532 |
break;
|
533 |
case AUD_FMT_S32:
|
534 |
AUD_log (NULL, "S32"); |
535 |
break;
|
536 |
case AUD_FMT_U32:
|
537 |
AUD_log (NULL, "U32"); |
538 |
break;
|
539 |
default:
|
540 |
AUD_log (NULL, "invalid(%d)", as->fmt); |
541 |
break;
|
542 |
} |
543 |
|
544 |
AUD_log (NULL, " endianness="); |
545 |
switch (as->endianness) {
|
546 |
case 0: |
547 |
AUD_log (NULL, "little"); |
548 |
break;
|
549 |
case 1: |
550 |
AUD_log (NULL, "big"); |
551 |
break;
|
552 |
default:
|
553 |
AUD_log (NULL, "invalid"); |
554 |
break;
|
555 |
} |
556 |
AUD_log (NULL, "\n"); |
557 |
} |
558 |
|
559 |
static int audio_validate_settings (struct audsettings *as) |
560 |
{ |
561 |
int invalid;
|
562 |
|
563 |
invalid = as->nchannels != 1 && as->nchannels != 2; |
564 |
invalid |= as->endianness != 0 && as->endianness != 1; |
565 |
|
566 |
switch (as->fmt) {
|
567 |
case AUD_FMT_S8:
|
568 |
case AUD_FMT_U8:
|
569 |
case AUD_FMT_S16:
|
570 |
case AUD_FMT_U16:
|
571 |
case AUD_FMT_S32:
|
572 |
case AUD_FMT_U32:
|
573 |
break;
|
574 |
default:
|
575 |
invalid = 1;
|
576 |
break;
|
577 |
} |
578 |
|
579 |
invalid |= as->freq <= 0;
|
580 |
return invalid ? -1 : 0; |
581 |
} |
582 |
|
583 |
static int audio_pcm_info_eq (struct audio_pcm_info *info, struct audsettings *as) |
584 |
{ |
585 |
int bits = 8, sign = 0; |
586 |
|
587 |
switch (as->fmt) {
|
588 |
case AUD_FMT_S8:
|
589 |
sign = 1;
|
590 |
case AUD_FMT_U8:
|
591 |
break;
|
592 |
|
593 |
case AUD_FMT_S16:
|
594 |
sign = 1;
|
595 |
case AUD_FMT_U16:
|
596 |
bits = 16;
|
597 |
break;
|
598 |
|
599 |
case AUD_FMT_S32:
|
600 |
sign = 1;
|
601 |
case AUD_FMT_U32:
|
602 |
bits = 32;
|
603 |
break;
|
604 |
} |
605 |
return info->freq == as->freq
|
606 |
&& info->nchannels == as->nchannels |
607 |
&& info->sign == sign |
608 |
&& info->bits == bits |
609 |
&& info->swap_endianness == (as->endianness != AUDIO_HOST_ENDIANNESS); |
610 |
} |
611 |
|
612 |
void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as) |
613 |
{ |
614 |
int bits = 8, sign = 0, shift = 0; |
615 |
|
616 |
switch (as->fmt) {
|
617 |
case AUD_FMT_S8:
|
618 |
sign = 1;
|
619 |
case AUD_FMT_U8:
|
620 |
break;
|
621 |
|
622 |
case AUD_FMT_S16:
|
623 |
sign = 1;
|
624 |
case AUD_FMT_U16:
|
625 |
bits = 16;
|
626 |
shift = 1;
|
627 |
break;
|
628 |
|
629 |
case AUD_FMT_S32:
|
630 |
sign = 1;
|
631 |
case AUD_FMT_U32:
|
632 |
bits = 32;
|
633 |
shift = 2;
|
634 |
break;
|
635 |
} |
636 |
|
637 |
info->freq = as->freq; |
638 |
info->bits = bits; |
639 |
info->sign = sign; |
640 |
info->nchannels = as->nchannels; |
641 |
info->shift = (as->nchannels == 2) + shift;
|
642 |
info->align = (1 << info->shift) - 1; |
643 |
info->bytes_per_second = info->freq << info->shift; |
644 |
info->swap_endianness = (as->endianness != AUDIO_HOST_ENDIANNESS); |
645 |
} |
646 |
|
647 |
void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len) |
648 |
{ |
649 |
if (!len) {
|
650 |
return;
|
651 |
} |
652 |
|
653 |
if (info->sign) {
|
654 |
memset (buf, 0x00, len << info->shift);
|
655 |
} |
656 |
else {
|
657 |
switch (info->bits) {
|
658 |
case 8: |
659 |
memset (buf, 0x80, len << info->shift);
|
660 |
break;
|
661 |
|
662 |
case 16: |
663 |
{ |
664 |
int i;
|
665 |
uint16_t *p = buf; |
666 |
int shift = info->nchannels - 1; |
667 |
short s = INT16_MAX;
|
668 |
|
669 |
if (info->swap_endianness) {
|
670 |
s = bswap16 (s); |
671 |
} |
672 |
|
673 |
for (i = 0; i < len << shift; i++) { |
674 |
p[i] = s; |
675 |
} |
676 |
} |
677 |
break;
|
678 |
|
679 |
case 32: |
680 |
{ |
681 |
int i;
|
682 |
uint32_t *p = buf; |
683 |
int shift = info->nchannels - 1; |
684 |
int32_t s = INT32_MAX; |
685 |
|
686 |
if (info->swap_endianness) {
|
687 |
s = bswap32 (s); |
688 |
} |
689 |
|
690 |
for (i = 0; i < len << shift; i++) { |
691 |
p[i] = s; |
692 |
} |
693 |
} |
694 |
break;
|
695 |
|
696 |
default:
|
697 |
AUD_log (NULL, "audio_pcm_info_clear_buf: invalid bits %d\n", |
698 |
info->bits); |
699 |
break;
|
700 |
} |
701 |
} |
702 |
} |
703 |
|
704 |
/*
|
705 |
* Capture
|
706 |
*/
|
707 |
static void noop_conv (struct st_sample *dst, const void *src, |
708 |
int samples, struct mixeng_volume *vol) |
709 |
{ |
710 |
(void) src;
|
711 |
(void) dst;
|
712 |
(void) samples;
|
713 |
(void) vol;
|
714 |
} |
715 |
|
716 |
static CaptureVoiceOut *audio_pcm_capture_find_specific (
|
717 |
AudioState *s, |
718 |
struct audsettings *as
|
719 |
) |
720 |
{ |
721 |
CaptureVoiceOut *cap; |
722 |
|
723 |
for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) {
|
724 |
if (audio_pcm_info_eq (&cap->hw.info, as)) {
|
725 |
return cap;
|
726 |
} |
727 |
} |
728 |
return NULL; |
729 |
} |
730 |
|
731 |
static void audio_notify_capture (CaptureVoiceOut *cap, audcnotification_e cmd) |
732 |
{ |
733 |
struct capture_callback *cb;
|
734 |
|
735 |
#ifdef DEBUG_CAPTURE
|
736 |
dolog ("notification %d sent\n", cmd);
|
737 |
#endif
|
738 |
for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
|
739 |
cb->ops.notify (cb->opaque, cmd); |
740 |
} |
741 |
} |
742 |
|
743 |
static void audio_capture_maybe_changed (CaptureVoiceOut *cap, int enabled) |
744 |
{ |
745 |
if (cap->hw.enabled != enabled) {
|
746 |
audcnotification_e cmd; |
747 |
cap->hw.enabled = enabled; |
748 |
cmd = enabled ? AUD_CNOTIFY_ENABLE : AUD_CNOTIFY_DISABLE; |
749 |
audio_notify_capture (cap, cmd); |
750 |
} |
751 |
} |
752 |
|
753 |
static void audio_recalc_and_notify_capture (CaptureVoiceOut *cap) |
754 |
{ |
755 |
HWVoiceOut *hw = &cap->hw; |
756 |
SWVoiceOut *sw; |
757 |
int enabled = 0; |
758 |
|
759 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
760 |
if (sw->active) {
|
761 |
enabled = 1;
|
762 |
break;
|
763 |
} |
764 |
} |
765 |
audio_capture_maybe_changed (cap, enabled); |
766 |
} |
767 |
|
768 |
static void audio_detach_capture (HWVoiceOut *hw) |
769 |
{ |
770 |
SWVoiceCap *sc = hw->cap_head.lh_first; |
771 |
|
772 |
while (sc) {
|
773 |
SWVoiceCap *sc1 = sc->entries.le_next; |
774 |
SWVoiceOut *sw = &sc->sw; |
775 |
CaptureVoiceOut *cap = sc->cap; |
776 |
int was_active = sw->active;
|
777 |
|
778 |
if (sw->rate) {
|
779 |
st_rate_stop (sw->rate); |
780 |
sw->rate = NULL;
|
781 |
} |
782 |
|
783 |
LIST_REMOVE (sw, entries); |
784 |
LIST_REMOVE (sc, entries); |
785 |
qemu_free (sc); |
786 |
if (was_active) {
|
787 |
/* We have removed soft voice from the capture:
|
788 |
this might have changed the overall status of the capture
|
789 |
since this might have been the only active voice */
|
790 |
audio_recalc_and_notify_capture (cap); |
791 |
} |
792 |
sc = sc1; |
793 |
} |
794 |
} |
795 |
|
796 |
static int audio_attach_capture (AudioState *s, HWVoiceOut *hw) |
797 |
{ |
798 |
CaptureVoiceOut *cap; |
799 |
|
800 |
audio_detach_capture (hw); |
801 |
for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) {
|
802 |
SWVoiceCap *sc; |
803 |
SWVoiceOut *sw; |
804 |
HWVoiceOut *hw_cap = &cap->hw; |
805 |
|
806 |
sc = audio_calloc (AUDIO_FUNC, 1, sizeof (*sc)); |
807 |
if (!sc) {
|
808 |
dolog ("Could not allocate soft capture voice (%zu bytes)\n",
|
809 |
sizeof (*sc));
|
810 |
return -1; |
811 |
} |
812 |
|
813 |
sc->cap = cap; |
814 |
sw = &sc->sw; |
815 |
sw->hw = hw_cap; |
816 |
sw->info = hw->info; |
817 |
sw->empty = 1;
|
818 |
sw->active = hw->enabled; |
819 |
sw->conv = noop_conv; |
820 |
sw->ratio = ((int64_t) hw_cap->info.freq << 32) / sw->info.freq;
|
821 |
sw->rate = st_rate_start (sw->info.freq, hw_cap->info.freq); |
822 |
if (!sw->rate) {
|
823 |
dolog ("Could not start rate conversion for `%s'\n", SW_NAME (sw));
|
824 |
qemu_free (sw); |
825 |
return -1; |
826 |
} |
827 |
LIST_INSERT_HEAD (&hw_cap->sw_head, sw, entries); |
828 |
LIST_INSERT_HEAD (&hw->cap_head, sc, entries); |
829 |
#ifdef DEBUG_CAPTURE
|
830 |
asprintf (&sw->name, "for %p %d,%d,%d",
|
831 |
hw, sw->info.freq, sw->info.bits, sw->info.nchannels); |
832 |
dolog ("Added %s active = %d\n", sw->name, sw->active);
|
833 |
#endif
|
834 |
if (sw->active) {
|
835 |
audio_capture_maybe_changed (cap, 1);
|
836 |
} |
837 |
} |
838 |
return 0; |
839 |
} |
840 |
|
841 |
/*
|
842 |
* Hard voice (capture)
|
843 |
*/
|
844 |
static int audio_pcm_hw_find_min_in (HWVoiceIn *hw) |
845 |
{ |
846 |
SWVoiceIn *sw; |
847 |
int m = hw->total_samples_captured;
|
848 |
|
849 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
850 |
if (sw->active) {
|
851 |
m = audio_MIN (m, sw->total_hw_samples_acquired); |
852 |
} |
853 |
} |
854 |
return m;
|
855 |
} |
856 |
|
857 |
int audio_pcm_hw_get_live_in (HWVoiceIn *hw)
|
858 |
{ |
859 |
int live = hw->total_samples_captured - audio_pcm_hw_find_min_in (hw);
|
860 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
861 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
|
862 |
return 0; |
863 |
} |
864 |
return live;
|
865 |
} |
866 |
|
867 |
/*
|
868 |
* Soft voice (capture)
|
869 |
*/
|
870 |
static int audio_pcm_sw_get_rpos_in (SWVoiceIn *sw) |
871 |
{ |
872 |
HWVoiceIn *hw = sw->hw; |
873 |
int live = hw->total_samples_captured - sw->total_hw_samples_acquired;
|
874 |
int rpos;
|
875 |
|
876 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
877 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
|
878 |
return 0; |
879 |
} |
880 |
|
881 |
rpos = hw->wpos - live; |
882 |
if (rpos >= 0) { |
883 |
return rpos;
|
884 |
} |
885 |
else {
|
886 |
return hw->samples + rpos;
|
887 |
} |
888 |
} |
889 |
|
890 |
int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int size) |
891 |
{ |
892 |
HWVoiceIn *hw = sw->hw; |
893 |
int samples, live, ret = 0, swlim, isamp, osamp, rpos, total = 0; |
894 |
struct st_sample *src, *dst = sw->buf;
|
895 |
|
896 |
rpos = audio_pcm_sw_get_rpos_in (sw) % hw->samples; |
897 |
|
898 |
live = hw->total_samples_captured - sw->total_hw_samples_acquired; |
899 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
900 |
dolog ("live_in=%d hw->samples=%d\n", live, hw->samples);
|
901 |
return 0; |
902 |
} |
903 |
|
904 |
samples = size >> sw->info.shift; |
905 |
if (!live) {
|
906 |
return 0; |
907 |
} |
908 |
|
909 |
swlim = (live * sw->ratio) >> 32;
|
910 |
swlim = audio_MIN (swlim, samples); |
911 |
|
912 |
while (swlim) {
|
913 |
src = hw->conv_buf + rpos; |
914 |
isamp = hw->wpos - rpos; |
915 |
/* XXX: <= ? */
|
916 |
if (isamp <= 0) { |
917 |
isamp = hw->samples - rpos; |
918 |
} |
919 |
|
920 |
if (!isamp) {
|
921 |
break;
|
922 |
} |
923 |
osamp = swlim; |
924 |
|
925 |
if (audio_bug (AUDIO_FUNC, osamp < 0)) { |
926 |
dolog ("osamp=%d\n", osamp);
|
927 |
return 0; |
928 |
} |
929 |
|
930 |
st_rate_flow (sw->rate, src, dst, &isamp, &osamp); |
931 |
swlim -= osamp; |
932 |
rpos = (rpos + isamp) % hw->samples; |
933 |
dst += osamp; |
934 |
ret += osamp; |
935 |
total += isamp; |
936 |
} |
937 |
|
938 |
sw->clip (buf, sw->buf, ret); |
939 |
sw->total_hw_samples_acquired += total; |
940 |
return ret << sw->info.shift;
|
941 |
} |
942 |
|
943 |
/*
|
944 |
* Hard voice (playback)
|
945 |
*/
|
946 |
static int audio_pcm_hw_find_min_out (HWVoiceOut *hw, int *nb_livep) |
947 |
{ |
948 |
SWVoiceOut *sw; |
949 |
int m = INT_MAX;
|
950 |
int nb_live = 0; |
951 |
|
952 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
953 |
if (sw->active || !sw->empty) {
|
954 |
m = audio_MIN (m, sw->total_hw_samples_mixed); |
955 |
nb_live += 1;
|
956 |
} |
957 |
} |
958 |
|
959 |
*nb_livep = nb_live; |
960 |
return m;
|
961 |
} |
962 |
|
963 |
int audio_pcm_hw_get_live_out2 (HWVoiceOut *hw, int *nb_live) |
964 |
{ |
965 |
int smin;
|
966 |
|
967 |
smin = audio_pcm_hw_find_min_out (hw, nb_live); |
968 |
|
969 |
if (!*nb_live) {
|
970 |
return 0; |
971 |
} |
972 |
else {
|
973 |
int live = smin;
|
974 |
|
975 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
976 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
|
977 |
return 0; |
978 |
} |
979 |
return live;
|
980 |
} |
981 |
} |
982 |
|
983 |
int audio_pcm_hw_get_live_out (HWVoiceOut *hw)
|
984 |
{ |
985 |
int nb_live;
|
986 |
int live;
|
987 |
|
988 |
live = audio_pcm_hw_get_live_out2 (hw, &nb_live); |
989 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
990 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
|
991 |
return 0; |
992 |
} |
993 |
return live;
|
994 |
} |
995 |
|
996 |
/*
|
997 |
* Soft voice (playback)
|
998 |
*/
|
999 |
int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int size) |
1000 |
{ |
1001 |
int hwsamples, samples, isamp, osamp, wpos, live, dead, left, swlim, blck;
|
1002 |
int ret = 0, pos = 0, total = 0; |
1003 |
|
1004 |
if (!sw) {
|
1005 |
return size;
|
1006 |
} |
1007 |
|
1008 |
hwsamples = sw->hw->samples; |
1009 |
|
1010 |
live = sw->total_hw_samples_mixed; |
1011 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hwsamples)){ |
1012 |
dolog ("live=%d hw->samples=%d\n", live, hwsamples);
|
1013 |
return 0; |
1014 |
} |
1015 |
|
1016 |
if (live == hwsamples) {
|
1017 |
#ifdef DEBUG_OUT
|
1018 |
dolog ("%s is full %d\n", sw->name, live);
|
1019 |
#endif
|
1020 |
return 0; |
1021 |
} |
1022 |
|
1023 |
wpos = (sw->hw->rpos + live) % hwsamples; |
1024 |
samples = size >> sw->info.shift; |
1025 |
|
1026 |
dead = hwsamples - live; |
1027 |
swlim = ((int64_t) dead << 32) / sw->ratio;
|
1028 |
swlim = audio_MIN (swlim, samples); |
1029 |
if (swlim) {
|
1030 |
sw->conv (sw->buf, buf, swlim, &sw->vol); |
1031 |
} |
1032 |
|
1033 |
while (swlim) {
|
1034 |
dead = hwsamples - live; |
1035 |
left = hwsamples - wpos; |
1036 |
blck = audio_MIN (dead, left); |
1037 |
if (!blck) {
|
1038 |
break;
|
1039 |
} |
1040 |
isamp = swlim; |
1041 |
osamp = blck; |
1042 |
st_rate_flow_mix ( |
1043 |
sw->rate, |
1044 |
sw->buf + pos, |
1045 |
sw->hw->mix_buf + wpos, |
1046 |
&isamp, |
1047 |
&osamp |
1048 |
); |
1049 |
ret += isamp; |
1050 |
swlim -= isamp; |
1051 |
pos += isamp; |
1052 |
live += osamp; |
1053 |
wpos = (wpos + osamp) % hwsamples; |
1054 |
total += osamp; |
1055 |
} |
1056 |
|
1057 |
sw->total_hw_samples_mixed += total; |
1058 |
sw->empty = sw->total_hw_samples_mixed == 0;
|
1059 |
|
1060 |
#ifdef DEBUG_OUT
|
1061 |
dolog ( |
1062 |
"%s: write size %d ret %d total sw %d\n",
|
1063 |
SW_NAME (sw), |
1064 |
size >> sw->info.shift, |
1065 |
ret, |
1066 |
sw->total_hw_samples_mixed |
1067 |
); |
1068 |
#endif
|
1069 |
|
1070 |
return ret << sw->info.shift;
|
1071 |
} |
1072 |
|
1073 |
#ifdef DEBUG_AUDIO
|
1074 |
static void audio_pcm_print_info (const char *cap, struct audio_pcm_info *info) |
1075 |
{ |
1076 |
dolog ("%s: bits %d, sign %d, freq %d, nchan %d\n",
|
1077 |
cap, info->bits, info->sign, info->freq, info->nchannels); |
1078 |
} |
1079 |
#endif
|
1080 |
|
1081 |
#define DAC
|
1082 |
#include "audio_template.h" |
1083 |
#undef DAC
|
1084 |
#include "audio_template.h" |
1085 |
|
1086 |
int AUD_write (SWVoiceOut *sw, void *buf, int size) |
1087 |
{ |
1088 |
int bytes;
|
1089 |
|
1090 |
if (!sw) {
|
1091 |
/* XXX: Consider options */
|
1092 |
return size;
|
1093 |
} |
1094 |
|
1095 |
if (!sw->hw->enabled) {
|
1096 |
dolog ("Writing to disabled voice %s\n", SW_NAME (sw));
|
1097 |
return 0; |
1098 |
} |
1099 |
|
1100 |
bytes = sw->hw->pcm_ops->write (sw, buf, size); |
1101 |
return bytes;
|
1102 |
} |
1103 |
|
1104 |
int AUD_read (SWVoiceIn *sw, void *buf, int size) |
1105 |
{ |
1106 |
int bytes;
|
1107 |
|
1108 |
if (!sw) {
|
1109 |
/* XXX: Consider options */
|
1110 |
return size;
|
1111 |
} |
1112 |
|
1113 |
if (!sw->hw->enabled) {
|
1114 |
dolog ("Reading from disabled voice %s\n", SW_NAME (sw));
|
1115 |
return 0; |
1116 |
} |
1117 |
|
1118 |
bytes = sw->hw->pcm_ops->read (sw, buf, size); |
1119 |
return bytes;
|
1120 |
} |
1121 |
|
1122 |
int AUD_get_buffer_size_out (SWVoiceOut *sw)
|
1123 |
{ |
1124 |
return sw->hw->samples << sw->hw->info.shift;
|
1125 |
} |
1126 |
|
1127 |
void AUD_set_active_out (SWVoiceOut *sw, int on) |
1128 |
{ |
1129 |
HWVoiceOut *hw; |
1130 |
|
1131 |
if (!sw) {
|
1132 |
return;
|
1133 |
} |
1134 |
|
1135 |
hw = sw->hw; |
1136 |
if (sw->active != on) {
|
1137 |
SWVoiceOut *temp_sw; |
1138 |
SWVoiceCap *sc; |
1139 |
|
1140 |
if (on) {
|
1141 |
hw->pending_disable = 0;
|
1142 |
if (!hw->enabled) {
|
1143 |
hw->enabled = 1;
|
1144 |
hw->pcm_ops->ctl_out (hw, VOICE_ENABLE); |
1145 |
} |
1146 |
} |
1147 |
else {
|
1148 |
if (hw->enabled) {
|
1149 |
int nb_active = 0; |
1150 |
|
1151 |
for (temp_sw = hw->sw_head.lh_first; temp_sw;
|
1152 |
temp_sw = temp_sw->entries.le_next) { |
1153 |
nb_active += temp_sw->active != 0;
|
1154 |
} |
1155 |
|
1156 |
hw->pending_disable = nb_active == 1;
|
1157 |
} |
1158 |
} |
1159 |
|
1160 |
for (sc = hw->cap_head.lh_first; sc; sc = sc->entries.le_next) {
|
1161 |
sc->sw.active = hw->enabled; |
1162 |
if (hw->enabled) {
|
1163 |
audio_capture_maybe_changed (sc->cap, 1);
|
1164 |
} |
1165 |
} |
1166 |
sw->active = on; |
1167 |
} |
1168 |
} |
1169 |
|
1170 |
void AUD_set_active_in (SWVoiceIn *sw, int on) |
1171 |
{ |
1172 |
HWVoiceIn *hw; |
1173 |
|
1174 |
if (!sw) {
|
1175 |
return;
|
1176 |
} |
1177 |
|
1178 |
hw = sw->hw; |
1179 |
if (sw->active != on) {
|
1180 |
SWVoiceIn *temp_sw; |
1181 |
|
1182 |
if (on) {
|
1183 |
if (!hw->enabled) {
|
1184 |
hw->enabled = 1;
|
1185 |
hw->pcm_ops->ctl_in (hw, VOICE_ENABLE); |
1186 |
} |
1187 |
sw->total_hw_samples_acquired = hw->total_samples_captured; |
1188 |
} |
1189 |
else {
|
1190 |
if (hw->enabled) {
|
1191 |
int nb_active = 0; |
1192 |
|
1193 |
for (temp_sw = hw->sw_head.lh_first; temp_sw;
|
1194 |
temp_sw = temp_sw->entries.le_next) { |
1195 |
nb_active += temp_sw->active != 0;
|
1196 |
} |
1197 |
|
1198 |
if (nb_active == 1) { |
1199 |
hw->enabled = 0;
|
1200 |
hw->pcm_ops->ctl_in (hw, VOICE_DISABLE); |
1201 |
} |
1202 |
} |
1203 |
} |
1204 |
sw->active = on; |
1205 |
} |
1206 |
} |
1207 |
|
1208 |
static int audio_get_avail (SWVoiceIn *sw) |
1209 |
{ |
1210 |
int live;
|
1211 |
|
1212 |
if (!sw) {
|
1213 |
return 0; |
1214 |
} |
1215 |
|
1216 |
live = sw->hw->total_samples_captured - sw->total_hw_samples_acquired; |
1217 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > sw->hw->samples)) { |
1218 |
dolog ("live=%d sw->hw->samples=%d\n", live, sw->hw->samples);
|
1219 |
return 0; |
1220 |
} |
1221 |
|
1222 |
ldebug ( |
1223 |
"%s: get_avail live %d ret %" PRId64 "\n", |
1224 |
SW_NAME (sw), |
1225 |
live, (((int64_t) live << 32) / sw->ratio) << sw->info.shift
|
1226 |
); |
1227 |
|
1228 |
return (((int64_t) live << 32) / sw->ratio) << sw->info.shift; |
1229 |
} |
1230 |
|
1231 |
static int audio_get_free (SWVoiceOut *sw) |
1232 |
{ |
1233 |
int live, dead;
|
1234 |
|
1235 |
if (!sw) {
|
1236 |
return 0; |
1237 |
} |
1238 |
|
1239 |
live = sw->total_hw_samples_mixed; |
1240 |
|
1241 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > sw->hw->samples)) { |
1242 |
dolog ("live=%d sw->hw->samples=%d\n", live, sw->hw->samples);
|
1243 |
return 0; |
1244 |
} |
1245 |
|
1246 |
dead = sw->hw->samples - live; |
1247 |
|
1248 |
#ifdef DEBUG_OUT
|
1249 |
dolog ("%s: get_free live %d dead %d ret %" PRId64 "\n", |
1250 |
SW_NAME (sw), |
1251 |
live, dead, (((int64_t) dead << 32) / sw->ratio) << sw->info.shift);
|
1252 |
#endif
|
1253 |
|
1254 |
return (((int64_t) dead << 32) / sw->ratio) << sw->info.shift; |
1255 |
} |
1256 |
|
1257 |
static void audio_capture_mix_and_clear (HWVoiceOut *hw, int rpos, int samples) |
1258 |
{ |
1259 |
int n;
|
1260 |
|
1261 |
if (hw->enabled) {
|
1262 |
SWVoiceCap *sc; |
1263 |
|
1264 |
for (sc = hw->cap_head.lh_first; sc; sc = sc->entries.le_next) {
|
1265 |
SWVoiceOut *sw = &sc->sw; |
1266 |
int rpos2 = rpos;
|
1267 |
|
1268 |
n = samples; |
1269 |
while (n) {
|
1270 |
int till_end_of_hw = hw->samples - rpos2;
|
1271 |
int to_write = audio_MIN (till_end_of_hw, n);
|
1272 |
int bytes = to_write << hw->info.shift;
|
1273 |
int written;
|
1274 |
|
1275 |
sw->buf = hw->mix_buf + rpos2; |
1276 |
written = audio_pcm_sw_write (sw, NULL, bytes);
|
1277 |
if (written - bytes) {
|
1278 |
dolog ("Could not mix %d bytes into a capture "
|
1279 |
"buffer, mixed %d\n",
|
1280 |
bytes, written); |
1281 |
break;
|
1282 |
} |
1283 |
n -= to_write; |
1284 |
rpos2 = (rpos2 + to_write) % hw->samples; |
1285 |
} |
1286 |
} |
1287 |
} |
1288 |
|
1289 |
n = audio_MIN (samples, hw->samples - rpos); |
1290 |
mixeng_clear (hw->mix_buf + rpos, n); |
1291 |
mixeng_clear (hw->mix_buf, samples - n); |
1292 |
} |
1293 |
|
1294 |
static void audio_run_out (AudioState *s) |
1295 |
{ |
1296 |
HWVoiceOut *hw = NULL;
|
1297 |
SWVoiceOut *sw; |
1298 |
|
1299 |
while ((hw = audio_pcm_hw_find_any_enabled_out (s, hw))) {
|
1300 |
int played;
|
1301 |
int live, free, nb_live, cleanup_required, prev_rpos;
|
1302 |
|
1303 |
live = audio_pcm_hw_get_live_out2 (hw, &nb_live); |
1304 |
if (!nb_live) {
|
1305 |
live = 0;
|
1306 |
} |
1307 |
|
1308 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
1309 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
|
1310 |
continue;
|
1311 |
} |
1312 |
|
1313 |
if (hw->pending_disable && !nb_live) {
|
1314 |
SWVoiceCap *sc; |
1315 |
#ifdef DEBUG_OUT
|
1316 |
dolog ("Disabling voice\n");
|
1317 |
#endif
|
1318 |
hw->enabled = 0;
|
1319 |
hw->pending_disable = 0;
|
1320 |
hw->pcm_ops->ctl_out (hw, VOICE_DISABLE); |
1321 |
for (sc = hw->cap_head.lh_first; sc; sc = sc->entries.le_next) {
|
1322 |
sc->sw.active = 0;
|
1323 |
audio_recalc_and_notify_capture (sc->cap); |
1324 |
} |
1325 |
continue;
|
1326 |
} |
1327 |
|
1328 |
if (!live) {
|
1329 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
1330 |
if (sw->active) {
|
1331 |
free = audio_get_free (sw); |
1332 |
if (free > 0) { |
1333 |
sw->callback.fn (sw->callback.opaque, free); |
1334 |
} |
1335 |
} |
1336 |
} |
1337 |
continue;
|
1338 |
} |
1339 |
|
1340 |
prev_rpos = hw->rpos; |
1341 |
played = hw->pcm_ops->run_out (hw); |
1342 |
if (audio_bug (AUDIO_FUNC, hw->rpos >= hw->samples)) {
|
1343 |
dolog ("hw->rpos=%d hw->samples=%d played=%d\n",
|
1344 |
hw->rpos, hw->samples, played); |
1345 |
hw->rpos = 0;
|
1346 |
} |
1347 |
|
1348 |
#ifdef DEBUG_OUT
|
1349 |
dolog ("played=%d\n", played);
|
1350 |
#endif
|
1351 |
|
1352 |
if (played) {
|
1353 |
hw->ts_helper += played; |
1354 |
audio_capture_mix_and_clear (hw, prev_rpos, played); |
1355 |
} |
1356 |
|
1357 |
cleanup_required = 0;
|
1358 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
1359 |
if (!sw->active && sw->empty) {
|
1360 |
continue;
|
1361 |
} |
1362 |
|
1363 |
if (audio_bug (AUDIO_FUNC, played > sw->total_hw_samples_mixed)) {
|
1364 |
dolog ("played=%d sw->total_hw_samples_mixed=%d\n",
|
1365 |
played, sw->total_hw_samples_mixed); |
1366 |
played = sw->total_hw_samples_mixed; |
1367 |
} |
1368 |
|
1369 |
sw->total_hw_samples_mixed -= played; |
1370 |
|
1371 |
if (!sw->total_hw_samples_mixed) {
|
1372 |
sw->empty = 1;
|
1373 |
cleanup_required |= !sw->active && !sw->callback.fn; |
1374 |
} |
1375 |
|
1376 |
if (sw->active) {
|
1377 |
free = audio_get_free (sw); |
1378 |
if (free > 0) { |
1379 |
sw->callback.fn (sw->callback.opaque, free); |
1380 |
} |
1381 |
} |
1382 |
} |
1383 |
|
1384 |
if (cleanup_required) {
|
1385 |
SWVoiceOut *sw1; |
1386 |
|
1387 |
sw = hw->sw_head.lh_first; |
1388 |
while (sw) {
|
1389 |
sw1 = sw->entries.le_next; |
1390 |
if (!sw->active && !sw->callback.fn) {
|
1391 |
#ifdef DEBUG_PLIVE
|
1392 |
dolog ("Finishing with old voice\n");
|
1393 |
#endif
|
1394 |
audio_close_out (s, sw); |
1395 |
} |
1396 |
sw = sw1; |
1397 |
} |
1398 |
} |
1399 |
} |
1400 |
} |
1401 |
|
1402 |
static void audio_run_in (AudioState *s) |
1403 |
{ |
1404 |
HWVoiceIn *hw = NULL;
|
1405 |
|
1406 |
while ((hw = audio_pcm_hw_find_any_enabled_in (s, hw))) {
|
1407 |
SWVoiceIn *sw; |
1408 |
int captured, min;
|
1409 |
|
1410 |
captured = hw->pcm_ops->run_in (hw); |
1411 |
|
1412 |
min = audio_pcm_hw_find_min_in (hw); |
1413 |
hw->total_samples_captured += captured - min; |
1414 |
hw->ts_helper += captured; |
1415 |
|
1416 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
1417 |
sw->total_hw_samples_acquired -= min; |
1418 |
|
1419 |
if (sw->active) {
|
1420 |
int avail;
|
1421 |
|
1422 |
avail = audio_get_avail (sw); |
1423 |
if (avail > 0) { |
1424 |
sw->callback.fn (sw->callback.opaque, avail); |
1425 |
} |
1426 |
} |
1427 |
} |
1428 |
} |
1429 |
} |
1430 |
|
1431 |
static void audio_run_capture (AudioState *s) |
1432 |
{ |
1433 |
CaptureVoiceOut *cap; |
1434 |
|
1435 |
for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) {
|
1436 |
int live, rpos, captured;
|
1437 |
HWVoiceOut *hw = &cap->hw; |
1438 |
SWVoiceOut *sw; |
1439 |
|
1440 |
captured = live = audio_pcm_hw_get_live_out (hw); |
1441 |
rpos = hw->rpos; |
1442 |
while (live) {
|
1443 |
int left = hw->samples - rpos;
|
1444 |
int to_capture = audio_MIN (live, left);
|
1445 |
struct st_sample *src;
|
1446 |
struct capture_callback *cb;
|
1447 |
|
1448 |
src = hw->mix_buf + rpos; |
1449 |
hw->clip (cap->buf, src, to_capture); |
1450 |
mixeng_clear (src, to_capture); |
1451 |
|
1452 |
for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
|
1453 |
cb->ops.capture (cb->opaque, cap->buf, |
1454 |
to_capture << hw->info.shift); |
1455 |
} |
1456 |
rpos = (rpos + to_capture) % hw->samples; |
1457 |
live -= to_capture; |
1458 |
} |
1459 |
hw->rpos = rpos; |
1460 |
|
1461 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
1462 |
if (!sw->active && sw->empty) {
|
1463 |
continue;
|
1464 |
} |
1465 |
|
1466 |
if (audio_bug (AUDIO_FUNC, captured > sw->total_hw_samples_mixed)) {
|
1467 |
dolog ("captured=%d sw->total_hw_samples_mixed=%d\n",
|
1468 |
captured, sw->total_hw_samples_mixed); |
1469 |
captured = sw->total_hw_samples_mixed; |
1470 |
} |
1471 |
|
1472 |
sw->total_hw_samples_mixed -= captured; |
1473 |
sw->empty = sw->total_hw_samples_mixed == 0;
|
1474 |
} |
1475 |
} |
1476 |
} |
1477 |
|
1478 |
static void audio_timer (void *opaque) |
1479 |
{ |
1480 |
AudioState *s = opaque; |
1481 |
|
1482 |
audio_run_out (s); |
1483 |
audio_run_in (s); |
1484 |
audio_run_capture (s); |
1485 |
|
1486 |
qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + conf.period.ticks); |
1487 |
} |
1488 |
|
1489 |
static struct audio_option audio_options[] = { |
1490 |
/* DAC */
|
1491 |
{"DAC_FIXED_SETTINGS", AUD_OPT_BOOL, &conf.fixed_out.enabled,
|
1492 |
"Use fixed settings for host DAC", NULL, 0}, |
1493 |
|
1494 |
{"DAC_FIXED_FREQ", AUD_OPT_INT, &conf.fixed_out.settings.freq,
|
1495 |
"Frequency for fixed host DAC", NULL, 0}, |
1496 |
|
1497 |
{"DAC_FIXED_FMT", AUD_OPT_FMT, &conf.fixed_out.settings.fmt,
|
1498 |
"Format for fixed host DAC", NULL, 0}, |
1499 |
|
1500 |
{"DAC_FIXED_CHANNELS", AUD_OPT_INT, &conf.fixed_out.settings.nchannels,
|
1501 |
"Number of channels for fixed DAC (1 - mono, 2 - stereo)", NULL, 0}, |
1502 |
|
1503 |
{"DAC_VOICES", AUD_OPT_INT, &conf.fixed_out.nb_voices,
|
1504 |
"Number of voices for DAC", NULL, 0}, |
1505 |
|
1506 |
/* ADC */
|
1507 |
{"ADC_FIXED_SETTINGS", AUD_OPT_BOOL, &conf.fixed_in.enabled,
|
1508 |
"Use fixed settings for host ADC", NULL, 0}, |
1509 |
|
1510 |
{"ADC_FIXED_FREQ", AUD_OPT_INT, &conf.fixed_in.settings.freq,
|
1511 |
"Frequency for fixed host ADC", NULL, 0}, |
1512 |
|
1513 |
{"ADC_FIXED_FMT", AUD_OPT_FMT, &conf.fixed_in.settings.fmt,
|
1514 |
"Format for fixed host ADC", NULL, 0}, |
1515 |
|
1516 |
{"ADC_FIXED_CHANNELS", AUD_OPT_INT, &conf.fixed_in.settings.nchannels,
|
1517 |
"Number of channels for fixed ADC (1 - mono, 2 - stereo)", NULL, 0}, |
1518 |
|
1519 |
{"ADC_VOICES", AUD_OPT_INT, &conf.fixed_in.nb_voices,
|
1520 |
"Number of voices for ADC", NULL, 0}, |
1521 |
|
1522 |
/* Misc */
|
1523 |
{"TIMER_PERIOD", AUD_OPT_INT, &conf.period.hertz,
|
1524 |
"Timer period in HZ (0 - use lowest possible)", NULL, 0}, |
1525 |
|
1526 |
{"PLIVE", AUD_OPT_BOOL, &conf.plive,
|
1527 |
"(undocumented)", NULL, 0}, |
1528 |
|
1529 |
{"LOG_TO_MONITOR", AUD_OPT_BOOL, &conf.log_to_monitor,
|
1530 |
"print logging messages to monitor instead of stderr", NULL, 0}, |
1531 |
|
1532 |
{NULL, 0, NULL, NULL, NULL, 0} |
1533 |
}; |
1534 |
|
1535 |
static void audio_pp_nb_voices (const char *typ, int nb) |
1536 |
{ |
1537 |
switch (nb) {
|
1538 |
case 0: |
1539 |
printf ("Does not support %s\n", typ);
|
1540 |
break;
|
1541 |
case 1: |
1542 |
printf ("One %s voice\n", typ);
|
1543 |
break;
|
1544 |
case INT_MAX:
|
1545 |
printf ("Theoretically supports many %s voices\n", typ);
|
1546 |
break;
|
1547 |
default:
|
1548 |
printf ("Theoretically supports upto %d %s voices\n", nb, typ);
|
1549 |
break;
|
1550 |
} |
1551 |
|
1552 |
} |
1553 |
|
1554 |
void AUD_help (void) |
1555 |
{ |
1556 |
size_t i; |
1557 |
|
1558 |
audio_process_options ("AUDIO", audio_options);
|
1559 |
for (i = 0; i < ARRAY_SIZE (drvtab); i++) { |
1560 |
struct audio_driver *d = drvtab[i];
|
1561 |
if (d->options) {
|
1562 |
audio_process_options (d->name, d->options); |
1563 |
} |
1564 |
} |
1565 |
|
1566 |
printf ("Audio options:\n");
|
1567 |
audio_print_options ("AUDIO", audio_options);
|
1568 |
printf ("\n");
|
1569 |
|
1570 |
printf ("Available drivers:\n");
|
1571 |
|
1572 |
for (i = 0; i < ARRAY_SIZE (drvtab); i++) { |
1573 |
struct audio_driver *d = drvtab[i];
|
1574 |
|
1575 |
printf ("Name: %s\n", d->name);
|
1576 |
printf ("Description: %s\n", d->descr);
|
1577 |
|
1578 |
audio_pp_nb_voices ("playback", d->max_voices_out);
|
1579 |
audio_pp_nb_voices ("capture", d->max_voices_in);
|
1580 |
|
1581 |
if (d->options) {
|
1582 |
printf ("Options:\n");
|
1583 |
audio_print_options (d->name, d->options); |
1584 |
} |
1585 |
else {
|
1586 |
printf ("No options\n");
|
1587 |
} |
1588 |
printf ("\n");
|
1589 |
} |
1590 |
|
1591 |
printf ( |
1592 |
"Options are settable through environment variables.\n"
|
1593 |
"Example:\n"
|
1594 |
#ifdef _WIN32
|
1595 |
" set QEMU_AUDIO_DRV=wav\n"
|
1596 |
" set QEMU_WAV_PATH=c:\\tune.wav\n"
|
1597 |
#else
|
1598 |
" export QEMU_AUDIO_DRV=wav\n"
|
1599 |
" export QEMU_WAV_PATH=$HOME/tune.wav\n"
|
1600 |
"(for csh replace export with setenv in the above)\n"
|
1601 |
#endif
|
1602 |
" qemu ...\n\n"
|
1603 |
); |
1604 |
} |
1605 |
|
1606 |
static int audio_driver_init (AudioState *s, struct audio_driver *drv) |
1607 |
{ |
1608 |
if (drv->options) {
|
1609 |
audio_process_options (drv->name, drv->options); |
1610 |
} |
1611 |
s->drv_opaque = drv->init (); |
1612 |
|
1613 |
if (s->drv_opaque) {
|
1614 |
audio_init_nb_voices_out (s, drv); |
1615 |
audio_init_nb_voices_in (s, drv); |
1616 |
s->drv = drv; |
1617 |
return 0; |
1618 |
} |
1619 |
else {
|
1620 |
dolog ("Could not init `%s' audio driver\n", drv->name);
|
1621 |
return -1; |
1622 |
} |
1623 |
} |
1624 |
|
1625 |
static void audio_vm_change_state_handler (void *opaque, int running) |
1626 |
{ |
1627 |
AudioState *s = opaque; |
1628 |
HWVoiceOut *hwo = NULL;
|
1629 |
HWVoiceIn *hwi = NULL;
|
1630 |
int op = running ? VOICE_ENABLE : VOICE_DISABLE;
|
1631 |
|
1632 |
while ((hwo = audio_pcm_hw_find_any_enabled_out (s, hwo))) {
|
1633 |
hwo->pcm_ops->ctl_out (hwo, op); |
1634 |
} |
1635 |
|
1636 |
while ((hwi = audio_pcm_hw_find_any_enabled_in (s, hwi))) {
|
1637 |
hwi->pcm_ops->ctl_in (hwi, op); |
1638 |
} |
1639 |
} |
1640 |
|
1641 |
static void audio_atexit (void) |
1642 |
{ |
1643 |
AudioState *s = &glob_audio_state; |
1644 |
HWVoiceOut *hwo = NULL;
|
1645 |
HWVoiceIn *hwi = NULL;
|
1646 |
|
1647 |
while ((hwo = audio_pcm_hw_find_any_enabled_out (s, hwo))) {
|
1648 |
SWVoiceCap *sc; |
1649 |
|
1650 |
hwo->pcm_ops->ctl_out (hwo, VOICE_DISABLE); |
1651 |
hwo->pcm_ops->fini_out (hwo); |
1652 |
|
1653 |
for (sc = hwo->cap_head.lh_first; sc; sc = sc->entries.le_next) {
|
1654 |
CaptureVoiceOut *cap = sc->cap; |
1655 |
struct capture_callback *cb;
|
1656 |
|
1657 |
for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
|
1658 |
cb->ops.destroy (cb->opaque); |
1659 |
} |
1660 |
} |
1661 |
} |
1662 |
|
1663 |
while ((hwi = audio_pcm_hw_find_any_enabled_in (s, hwi))) {
|
1664 |
hwi->pcm_ops->ctl_in (hwi, VOICE_DISABLE); |
1665 |
hwi->pcm_ops->fini_in (hwi); |
1666 |
} |
1667 |
|
1668 |
if (s->drv) {
|
1669 |
s->drv->fini (s->drv_opaque); |
1670 |
} |
1671 |
} |
1672 |
|
1673 |
static void audio_save (QEMUFile *f, void *opaque) |
1674 |
{ |
1675 |
(void) f;
|
1676 |
(void) opaque;
|
1677 |
} |
1678 |
|
1679 |
static int audio_load (QEMUFile *f, void *opaque, int version_id) |
1680 |
{ |
1681 |
(void) f;
|
1682 |
(void) opaque;
|
1683 |
|
1684 |
if (version_id != 1) { |
1685 |
return -EINVAL;
|
1686 |
} |
1687 |
|
1688 |
return 0; |
1689 |
} |
1690 |
|
1691 |
void AUD_register_card (AudioState *s, const char *name, QEMUSoundCard *card) |
1692 |
{ |
1693 |
card->audio = s; |
1694 |
card->name = qemu_strdup (name); |
1695 |
memset (&card->entries, 0, sizeof (card->entries)); |
1696 |
LIST_INSERT_HEAD (&s->card_head, card, entries); |
1697 |
} |
1698 |
|
1699 |
void AUD_remove_card (QEMUSoundCard *card)
|
1700 |
{ |
1701 |
LIST_REMOVE (card, entries); |
1702 |
card->audio = NULL;
|
1703 |
qemu_free (card->name); |
1704 |
} |
1705 |
|
1706 |
AudioState *AUD_init (void)
|
1707 |
{ |
1708 |
size_t i; |
1709 |
int done = 0; |
1710 |
const char *drvname; |
1711 |
AudioState *s = &glob_audio_state; |
1712 |
|
1713 |
LIST_INIT (&s->hw_head_out); |
1714 |
LIST_INIT (&s->hw_head_in); |
1715 |
LIST_INIT (&s->cap_head); |
1716 |
atexit (audio_atexit); |
1717 |
|
1718 |
s->ts = qemu_new_timer (vm_clock, audio_timer, s); |
1719 |
if (!s->ts) {
|
1720 |
dolog ("Could not create audio timer\n");
|
1721 |
return NULL; |
1722 |
} |
1723 |
|
1724 |
audio_process_options ("AUDIO", audio_options);
|
1725 |
|
1726 |
s->nb_hw_voices_out = conf.fixed_out.nb_voices; |
1727 |
s->nb_hw_voices_in = conf.fixed_in.nb_voices; |
1728 |
|
1729 |
if (s->nb_hw_voices_out <= 0) { |
1730 |
dolog ("Bogus number of playback voices %d, setting to 1\n",
|
1731 |
s->nb_hw_voices_out); |
1732 |
s->nb_hw_voices_out = 1;
|
1733 |
} |
1734 |
|
1735 |
if (s->nb_hw_voices_in <= 0) { |
1736 |
dolog ("Bogus number of capture voices %d, setting to 0\n",
|
1737 |
s->nb_hw_voices_in); |
1738 |
s->nb_hw_voices_in = 0;
|
1739 |
} |
1740 |
|
1741 |
{ |
1742 |
int def;
|
1743 |
drvname = audio_get_conf_str ("QEMU_AUDIO_DRV", NULL, &def); |
1744 |
} |
1745 |
|
1746 |
if (drvname) {
|
1747 |
int found = 0; |
1748 |
|
1749 |
for (i = 0; i < ARRAY_SIZE (drvtab); i++) { |
1750 |
if (!strcmp (drvname, drvtab[i]->name)) {
|
1751 |
done = !audio_driver_init (s, drvtab[i]); |
1752 |
found = 1;
|
1753 |
break;
|
1754 |
} |
1755 |
} |
1756 |
|
1757 |
if (!found) {
|
1758 |
dolog ("Unknown audio driver `%s'\n", drvname);
|
1759 |
dolog ("Run with -audio-help to list available drivers\n");
|
1760 |
} |
1761 |
} |
1762 |
|
1763 |
if (!done) {
|
1764 |
for (i = 0; !done && i < ARRAY_SIZE (drvtab); i++) { |
1765 |
if (drvtab[i]->can_be_default) {
|
1766 |
done = !audio_driver_init (s, drvtab[i]); |
1767 |
} |
1768 |
} |
1769 |
} |
1770 |
|
1771 |
if (!done) {
|
1772 |
done = !audio_driver_init (s, &no_audio_driver); |
1773 |
if (!done) {
|
1774 |
dolog ("Could not initialize audio subsystem\n");
|
1775 |
} |
1776 |
else {
|
1777 |
dolog ("warning: Using timer based audio emulation\n");
|
1778 |
} |
1779 |
} |
1780 |
|
1781 |
if (done) {
|
1782 |
VMChangeStateEntry *e; |
1783 |
|
1784 |
if (conf.period.hertz <= 0) { |
1785 |
if (conf.period.hertz < 0) { |
1786 |
dolog ("warning: Timer period is negative - %d "
|
1787 |
"treating as zero\n",
|
1788 |
conf.period.hertz); |
1789 |
} |
1790 |
conf.period.ticks = 1;
|
1791 |
} |
1792 |
else {
|
1793 |
conf.period.ticks = ticks_per_sec / conf.period.hertz; |
1794 |
} |
1795 |
|
1796 |
e = qemu_add_vm_change_state_handler (audio_vm_change_state_handler, s); |
1797 |
if (!e) {
|
1798 |
dolog ("warning: Could not register change state handler\n"
|
1799 |
"(Audio can continue looping even after stopping the VM)\n");
|
1800 |
} |
1801 |
} |
1802 |
else {
|
1803 |
qemu_del_timer (s->ts); |
1804 |
return NULL; |
1805 |
} |
1806 |
|
1807 |
LIST_INIT (&s->card_head); |
1808 |
register_savevm ("audio", 0, 1, audio_save, audio_load, s); |
1809 |
qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + conf.period.ticks); |
1810 |
return s;
|
1811 |
} |
1812 |
|
1813 |
CaptureVoiceOut *AUD_add_capture ( |
1814 |
AudioState *s, |
1815 |
struct audsettings *as,
|
1816 |
struct audio_capture_ops *ops,
|
1817 |
void *cb_opaque
|
1818 |
) |
1819 |
{ |
1820 |
CaptureVoiceOut *cap; |
1821 |
struct capture_callback *cb;
|
1822 |
|
1823 |
if (!s) {
|
1824 |
/* XXX suppress */
|
1825 |
s = &glob_audio_state; |
1826 |
} |
1827 |
|
1828 |
if (audio_validate_settings (as)) {
|
1829 |
dolog ("Invalid settings were passed when trying to add capture\n");
|
1830 |
audio_print_settings (as); |
1831 |
goto err0;
|
1832 |
} |
1833 |
|
1834 |
cb = audio_calloc (AUDIO_FUNC, 1, sizeof (*cb)); |
1835 |
if (!cb) {
|
1836 |
dolog ("Could not allocate capture callback information, size %zu\n",
|
1837 |
sizeof (*cb));
|
1838 |
goto err0;
|
1839 |
} |
1840 |
cb->ops = *ops; |
1841 |
cb->opaque = cb_opaque; |
1842 |
|
1843 |
cap = audio_pcm_capture_find_specific (s, as); |
1844 |
if (cap) {
|
1845 |
LIST_INSERT_HEAD (&cap->cb_head, cb, entries); |
1846 |
return cap;
|
1847 |
} |
1848 |
else {
|
1849 |
HWVoiceOut *hw; |
1850 |
CaptureVoiceOut *cap; |
1851 |
|
1852 |
cap = audio_calloc (AUDIO_FUNC, 1, sizeof (*cap)); |
1853 |
if (!cap) {
|
1854 |
dolog ("Could not allocate capture voice, size %zu\n",
|
1855 |
sizeof (*cap));
|
1856 |
goto err1;
|
1857 |
} |
1858 |
|
1859 |
hw = &cap->hw; |
1860 |
LIST_INIT (&hw->sw_head); |
1861 |
LIST_INIT (&cap->cb_head); |
1862 |
|
1863 |
/* XXX find a more elegant way */
|
1864 |
hw->samples = 4096 * 4; |
1865 |
hw->mix_buf = audio_calloc (AUDIO_FUNC, hw->samples, |
1866 |
sizeof (struct st_sample)); |
1867 |
if (!hw->mix_buf) {
|
1868 |
dolog ("Could not allocate capture mix buffer (%d samples)\n",
|
1869 |
hw->samples); |
1870 |
goto err2;
|
1871 |
} |
1872 |
|
1873 |
audio_pcm_init_info (&hw->info, as); |
1874 |
|
1875 |
cap->buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
|
1876 |
if (!cap->buf) {
|
1877 |
dolog ("Could not allocate capture buffer "
|
1878 |
"(%d samples, each %d bytes)\n",
|
1879 |
hw->samples, 1 << hw->info.shift);
|
1880 |
goto err3;
|
1881 |
} |
1882 |
|
1883 |
hw->clip = mixeng_clip |
1884 |
[hw->info.nchannels == 2]
|
1885 |
[hw->info.sign] |
1886 |
[hw->info.swap_endianness] |
1887 |
[audio_bits_to_index (hw->info.bits)]; |
1888 |
|
1889 |
LIST_INSERT_HEAD (&s->cap_head, cap, entries); |
1890 |
LIST_INSERT_HEAD (&cap->cb_head, cb, entries); |
1891 |
|
1892 |
hw = NULL;
|
1893 |
while ((hw = audio_pcm_hw_find_any_out (s, hw))) {
|
1894 |
audio_attach_capture (s, hw); |
1895 |
} |
1896 |
return cap;
|
1897 |
|
1898 |
err3:
|
1899 |
qemu_free (cap->hw.mix_buf); |
1900 |
err2:
|
1901 |
qemu_free (cap); |
1902 |
err1:
|
1903 |
qemu_free (cb); |
1904 |
err0:
|
1905 |
return NULL; |
1906 |
} |
1907 |
} |
1908 |
|
1909 |
void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque) |
1910 |
{ |
1911 |
struct capture_callback *cb;
|
1912 |
|
1913 |
for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
|
1914 |
if (cb->opaque == cb_opaque) {
|
1915 |
cb->ops.destroy (cb_opaque); |
1916 |
LIST_REMOVE (cb, entries); |
1917 |
qemu_free (cb); |
1918 |
|
1919 |
if (!cap->cb_head.lh_first) {
|
1920 |
SWVoiceOut *sw = cap->hw.sw_head.lh_first, *sw1; |
1921 |
|
1922 |
while (sw) {
|
1923 |
SWVoiceCap *sc = (SWVoiceCap *) sw; |
1924 |
#ifdef DEBUG_CAPTURE
|
1925 |
dolog ("freeing %s\n", sw->name);
|
1926 |
#endif
|
1927 |
|
1928 |
sw1 = sw->entries.le_next; |
1929 |
if (sw->rate) {
|
1930 |
st_rate_stop (sw->rate); |
1931 |
sw->rate = NULL;
|
1932 |
} |
1933 |
LIST_REMOVE (sw, entries); |
1934 |
LIST_REMOVE (sc, entries); |
1935 |
qemu_free (sc); |
1936 |
sw = sw1; |
1937 |
} |
1938 |
LIST_REMOVE (cap, entries); |
1939 |
qemu_free (cap); |
1940 |
} |
1941 |
return;
|
1942 |
} |
1943 |
} |
1944 |
} |
1945 |
|
1946 |
void AUD_set_volume_out (SWVoiceOut *sw, int mute, uint8_t lvol, uint8_t rvol) |
1947 |
{ |
1948 |
if (sw) {
|
1949 |
sw->vol.mute = mute; |
1950 |
sw->vol.l = nominal_volume.l * lvol / 255;
|
1951 |
sw->vol.r = nominal_volume.r * rvol / 255;
|
1952 |
} |
1953 |
} |
1954 |
|
1955 |
void AUD_set_volume_in (SWVoiceIn *sw, int mute, uint8_t lvol, uint8_t rvol) |
1956 |
{ |
1957 |
if (sw) {
|
1958 |
sw->vol.mute = mute; |
1959 |
sw->vol.l = nominal_volume.l * lvol / 255;
|
1960 |
sw->vol.r = nominal_volume.r * rvol / 255;
|
1961 |
} |
1962 |
} |