mirror of https://gitee.com/openkylin/qemu.git
dsoundaudio: port to -audiodev config
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Message-id: f25562cb88246b41c3e6380685a108fd341d5b50.1552083282.git.DirtY.iCE.hu@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Kővágó, Zoltán
Gerd Hoffmann
parent
17c56dc1d1
commit
4a3b8b3444
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@ -120,6 +120,30 @@ static void get_frames_to_usecs(const char *env, uint32_t *dst, bool *has_dst,
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}
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}
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static uint32_t samples_to_usecs(uint32_t samples,
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AudiodevPerDirectionOptions *pdo)
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{
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uint32_t channels = pdo->has_channels ? pdo->channels : 2;
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return frames_to_usecs(samples / channels, pdo);
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}
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static uint32_t bytes_to_usecs(uint32_t bytes, AudiodevPerDirectionOptions *pdo)
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{
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AudioFormat fmt = pdo->has_format ? pdo->format : AUDIO_FORMAT_S16;
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uint32_t bytes_per_sample = audioformat_bytes_per_sample(fmt);
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return samples_to_usecs(bytes / bytes_per_sample, pdo);
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}
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static void get_bytes_to_usecs(const char *env, uint32_t *dst, bool *has_dst,
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AudiodevPerDirectionOptions *pdo)
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{
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const char *val = getenv(env);
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if (val) {
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*dst = bytes_to_usecs(toui32(val), pdo);
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*has_dst = true;
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}
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}
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/* backend specific functions */
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/* ALSA */
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static void handle_alsa_per_direction(
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@ -180,6 +204,21 @@ static void handle_coreaudio(Audiodev *dev)
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&dev->u.coreaudio.out->has_buffer_count);
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}
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/* dsound */
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static void handle_dsound(Audiodev *dev)
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{
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get_millis_to_usecs("QEMU_DSOUND_LATENCY_MILLIS",
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&dev->u.dsound.latency, &dev->u.dsound.has_latency);
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get_bytes_to_usecs("QEMU_DSOUND_BUFSIZE_OUT",
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&dev->u.dsound.out->buffer_length,
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&dev->u.dsound.out->has_buffer_length,
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dev->u.dsound.out);
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get_bytes_to_usecs("QEMU_DSOUND_BUFSIZE_IN",
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&dev->u.dsound.in->buffer_length,
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&dev->u.dsound.in->has_buffer_length,
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dev->u.dsound.in);
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}
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/* general */
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static void handle_per_direction(
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AudiodevPerDirectionOptions *pdo, const char *prefix)
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@ -229,6 +268,10 @@ static AudiodevListEntry *legacy_opt(const char *drvname)
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handle_coreaudio(e->dev);
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break;
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case AUDIODEV_DRIVER_DSOUND:
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handle_dsound(e->dev);
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break;
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default:
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break;
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}
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@ -167,17 +167,18 @@ static int dsound_init_out(HWVoiceOut *hw, struct audsettings *as,
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dsound *s = drv_opaque;
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WAVEFORMATEX wfx;
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struct audsettings obt_as;
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DSoundConf *conf = &s->conf;
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#ifdef DSBTYPE_IN
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const char *typ = "ADC";
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DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
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DSCBUFFERDESC bd;
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DSCBCAPS bc;
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AudiodevPerDirectionOptions *pdo = s->dev->u.dsound.in;
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#else
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const char *typ = "DAC";
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DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
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DSBUFFERDESC bd;
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DSBCAPS bc;
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AudiodevPerDirectionOptions *pdo = s->dev->u.dsound.out;
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#endif
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if (!s->FIELD2) {
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@ -193,8 +194,8 @@ static int dsound_init_out(HWVoiceOut *hw, struct audsettings *as,
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memset (&bd, 0, sizeof (bd));
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bd.dwSize = sizeof (bd);
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bd.lpwfxFormat = &wfx;
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bd.dwBufferBytes = audio_buffer_bytes(pdo, as, 92880);
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#ifdef DSBTYPE_IN
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bd.dwBufferBytes = conf->bufsize_in;
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hr = IDirectSoundCapture_CreateCaptureBuffer (
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s->dsound_capture,
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&bd,
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@ -203,7 +204,6 @@ static int dsound_init_out(HWVoiceOut *hw, struct audsettings *as,
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);
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#else
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bd.dwFlags = DSBCAPS_STICKYFOCUS | DSBCAPS_GETCURRENTPOSITION2;
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bd.dwBufferBytes = conf->bufsize_out;
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hr = IDirectSound_CreateSoundBuffer (
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s->dsound,
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&bd,
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@ -32,6 +32,7 @@
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#define AUDIO_CAP "dsound"
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#include "audio_int.h"
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#include "qemu/host-utils.h"
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#include <windows.h>
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#include <mmsystem.h>
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@ -42,17 +43,11 @@
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/* #define DEBUG_DSOUND */
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typedef struct {
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int bufsize_in;
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int bufsize_out;
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int latency_millis;
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} DSoundConf;
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typedef struct {
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LPDIRECTSOUND dsound;
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LPDIRECTSOUNDCAPTURE dsound_capture;
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struct audsettings settings;
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DSoundConf conf;
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Audiodev *dev;
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} dsound;
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typedef struct {
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@ -248,9 +243,9 @@ static void GCC_FMT_ATTR (3, 4) dsound_logerr2 (
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dsound_log_hresult (hr);
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}
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static DWORD millis_to_bytes (struct audio_pcm_info *info, DWORD millis)
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static uint64_t usecs_to_bytes(struct audio_pcm_info *info, uint32_t usecs)
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{
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return (millis * info->bytes_per_second) / 1000;
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return muldiv64(usecs, info->bytes_per_second, 1000000);
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}
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#ifdef DEBUG_DSOUND
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@ -478,7 +473,7 @@ static int dsound_run_out (HWVoiceOut *hw, int live)
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LPVOID p1, p2;
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int bufsize;
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dsound *s = ds->s;
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DSoundConf *conf = &s->conf;
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AudiodevDsoundOptions *dso = &s->dev->u.dsound;
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if (!dsb) {
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dolog ("Attempt to run empty with playback buffer\n");
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@ -501,14 +496,14 @@ static int dsound_run_out (HWVoiceOut *hw, int live)
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len = live << hwshift;
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if (ds->first_time) {
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if (conf->latency_millis) {
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if (dso->latency) {
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DWORD cur_blat;
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cur_blat = audio_ring_dist (wpos, ppos, bufsize);
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ds->first_time = 0;
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old_pos = wpos;
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old_pos +=
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millis_to_bytes (&hw->info, conf->latency_millis) - cur_blat;
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usecs_to_bytes(&hw->info, dso->latency) - cur_blat;
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old_pos %= bufsize;
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old_pos &= ~hw->info.align;
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}
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@ -747,12 +742,6 @@ static int dsound_run_in (HWVoiceIn *hw)
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return decr;
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}
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static DSoundConf glob_conf = {
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.bufsize_in = 16384,
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.bufsize_out = 16384,
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.latency_millis = 10
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};
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static void dsound_audio_fini (void *opaque)
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{
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HRESULT hr;
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@ -788,8 +777,17 @@ static void *dsound_audio_init(Audiodev *dev)
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int err;
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HRESULT hr;
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dsound *s = g_malloc0(sizeof(dsound));
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AudiodevDsoundOptions *dso;
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assert(dev->driver == AUDIODEV_DRIVER_DSOUND);
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s->dev = dev;
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dso = &dev->u.dsound;
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if (!dso->has_latency) {
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dso->has_latency = true;
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dso->latency = 10000; /* 10 ms */
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}
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s->conf = glob_conf;
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hr = CoInitialize (NULL);
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if (FAILED (hr)) {
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dsound_logerr (hr, "Could not initialize COM\n");
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@ -854,28 +852,6 @@ static void *dsound_audio_init(Audiodev *dev)
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return s;
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}
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static struct audio_option dsound_options[] = {
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{
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.name = "LATENCY_MILLIS",
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.tag = AUD_OPT_INT,
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.valp = &glob_conf.latency_millis,
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.descr = "(undocumented)"
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},
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{
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.name = "BUFSIZE_OUT",
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.tag = AUD_OPT_INT,
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.valp = &glob_conf.bufsize_out,
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.descr = "(undocumented)"
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},
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{
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.name = "BUFSIZE_IN",
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.tag = AUD_OPT_INT,
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.valp = &glob_conf.bufsize_in,
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.descr = "(undocumented)"
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},
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{ /* End of list */ }
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};
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static struct audio_pcm_ops dsound_pcm_ops = {
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.init_out = dsound_init_out,
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.fini_out = dsound_fini_out,
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@ -893,7 +869,6 @@ static struct audio_pcm_ops dsound_pcm_ops = {
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static struct audio_driver dsound_audio_driver = {
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.name = "dsound",
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.descr = "DirectSound http://wikipedia.org/wiki/DirectSound",
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.options = dsound_options,
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.init = dsound_audio_init,
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.fini = dsound_audio_fini,
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.pcm_ops = &dsound_pcm_ops,
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