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winealsa: Move create_stream and release_stream to the unixlib. 

Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Andrew Eikum <aeikum@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Huw Davies 2022-02-22 08:14:18 +00:00 committed by Alexandre Julliard
parent 7262da2afc
commit 71d0cdde89
3 changed files with 361 additions and 454 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

303
dlls/winealsa.drv/alsa.c
View File

@ -25,6 +25,7 @@
#include <stdarg.h>
#include <stdio.h>
#include <pthread.h>
#include <alsa/asoundlib.h>
@ -44,6 +45,8 @@
WINE_DEFAULT_DEBUG_CHANNEL(alsa);
#define EXTRA_SAFE_RT 40000
static const WCHAR drv_keyW[] = {'S','o','f','t','w','a','r','e','\\',
'W','i','n','e','\\','D','r','i','v','e','r','s','\\',
'w','i','n','e','a','l','s','a','.','d','r','v'};
@ -133,6 +136,30 @@ static WCHAR *strdupAtoW(const char *str)
return ret;
}
/* copied from kernelbase */
static int muldiv( int a, int b, int c )
{
LONGLONG ret;
if (!c) return -1;
/* We want to deal with a positive divisor to simplify the logic. */
if (c < 0)
{
a = -a;
c = -c;
}
/* If the result is positive, we "add" to round. else, we subtract to round. */
if ((a < 0 && b < 0) || (a >= 0 && b >= 0))
ret = (((LONGLONG)a * b) + (c / 2)) / c;
else
ret = (((LONGLONG)a * b) - (c / 2)) / c;
if (ret > 2147483647 || ret < -2147483647) return -1;
return ret;
}
static BOOL alsa_try_open(const char *devnode, EDataFlow flow)
{
snd_pcm_t *handle;
@ -663,6 +690,280 @@ static HRESULT map_channels(EDataFlow flow, const WAVEFORMATEX *fmt, int *alsa_c
return need_remap ? S_OK : S_FALSE;
}
static void silence_buffer(struct alsa_stream *stream, BYTE *buffer, UINT32 frames)
{
WAVEFORMATEXTENSIBLE *fmtex = (WAVEFORMATEXTENSIBLE*)stream->fmt;
if((stream->fmt->wFormatTag == WAVE_FORMAT_PCM ||
(stream->fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
IsEqualGUID(&fmtex->SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))) &&
stream->fmt->wBitsPerSample == 8)
memset(buffer, 128, frames * stream->fmt->nBlockAlign);
else
memset(buffer, 0, frames * stream->fmt->nBlockAlign);
}
static NTSTATUS create_stream(void *args)
{
struct create_stream_params *params = args;
struct alsa_stream *stream;
snd_pcm_sw_params_t *sw_params = NULL;
snd_pcm_format_t format;
unsigned int rate, alsa_period_us, i;
WAVEFORMATEXTENSIBLE *fmtex;
int err;
SIZE_T size;
stream = calloc(1, sizeof(*stream));
if(!stream){
params->result = E_OUTOFMEMORY;
return STATUS_SUCCESS;
}
params->result = alsa_open_device(params->alsa_name, params->flow, &stream->pcm_handle, &stream->hw_params);
if(FAILED(params->result)){
free(stream);
return STATUS_SUCCESS;
}
stream->need_remapping = map_channels(params->flow, params->fmt, &stream->alsa_channels, stream->alsa_channel_map) == S_OK;
if((err = snd_pcm_hw_params_any(stream->pcm_handle, stream->hw_params)) < 0){
WARN("Unable to get hw_params: %d (%s)\n", err, snd_strerror(err));
params->result = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
if((err = snd_pcm_hw_params_set_access(stream->pcm_handle, stream->hw_params,
SND_PCM_ACCESS_RW_INTERLEAVED)) < 0){
WARN("Unable to set access: %d (%s)\n", err, snd_strerror(err));
params->result = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
format = alsa_format(params->fmt);
if (format == SND_PCM_FORMAT_UNKNOWN){
params->result = AUDCLNT_E_UNSUPPORTED_FORMAT;
goto exit;
}
if((err = snd_pcm_hw_params_set_format(stream->pcm_handle, stream->hw_params,
format)) < 0){
WARN("Unable to set ALSA format to %u: %d (%s)\n", format, err,
snd_strerror(err));
params->result = AUDCLNT_E_UNSUPPORTED_FORMAT;
goto exit;
}
stream->alsa_format = format;
stream->flow = params->flow;
rate = params->fmt->nSamplesPerSec;
if((err = snd_pcm_hw_params_set_rate_near(stream->pcm_handle, stream->hw_params,
&rate, NULL)) < 0){
WARN("Unable to set rate to %u: %d (%s)\n", rate, err,
snd_strerror(err));
params->result = AUDCLNT_E_UNSUPPORTED_FORMAT;
goto exit;
}
if((err = snd_pcm_hw_params_set_channels(stream->pcm_handle, stream->hw_params,
stream->alsa_channels)) < 0){
WARN("Unable to set channels to %u: %d (%s)\n", params->fmt->nChannels, err,
snd_strerror(err));
params->result = AUDCLNT_E_UNSUPPORTED_FORMAT;
goto exit;
}
stream->mmdev_period_rt = params->period;
alsa_period_us = stream->mmdev_period_rt / 10;
if((err = snd_pcm_hw_params_set_period_time_near(stream->pcm_handle,
stream->hw_params, &alsa_period_us, NULL)) < 0)
WARN("Unable to set period time near %u: %d (%s)\n", alsa_period_us,
err, snd_strerror(err));
/* ALSA updates the output variable alsa_period_us */
stream->mmdev_period_frames = muldiv(params->fmt->nSamplesPerSec,
stream->mmdev_period_rt, 10000000);
/* Buffer 4 ALSA periods if large enough, else 4 mmdevapi periods */
stream->alsa_bufsize_frames = stream->mmdev_period_frames * 4;
if(err < 0 || alsa_period_us < params->period / 10)
err = snd_pcm_hw_params_set_buffer_size_near(stream->pcm_handle,
stream->hw_params, &stream->alsa_bufsize_frames);
else{
unsigned int periods = 4;
err = snd_pcm_hw_params_set_periods_near(stream->pcm_handle, stream->hw_params, &periods, NULL);
}
if(err < 0)
WARN("Unable to set buffer size: %d (%s)\n", err, snd_strerror(err));
if((err = snd_pcm_hw_params(stream->pcm_handle, stream->hw_params)) < 0){
WARN("Unable to set hw params: %d (%s)\n", err, snd_strerror(err));
params->result = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
if((err = snd_pcm_hw_params_get_period_size(stream->hw_params,
&stream->alsa_period_frames, NULL)) < 0){
WARN("Unable to get period size: %d (%s)\n", err, snd_strerror(err));
params->result = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
if((err = snd_pcm_hw_params_get_buffer_size(stream->hw_params,
&stream->alsa_bufsize_frames)) < 0){
WARN("Unable to get buffer size: %d (%s)\n", err, snd_strerror(err));
params->result = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
sw_params = calloc(1, snd_pcm_sw_params_sizeof());
if(!sw_params){
params->result = E_OUTOFMEMORY;
goto exit;
}
if((err = snd_pcm_sw_params_current(stream->pcm_handle, sw_params)) < 0){
WARN("Unable to get sw_params: %d (%s)\n", err, snd_strerror(err));
params->result = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
if((err = snd_pcm_sw_params_set_start_threshold(stream->pcm_handle,
sw_params, 1)) < 0){
WARN("Unable set start threshold to 1: %d (%s)\n", err, snd_strerror(err));
params->result = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
if((err = snd_pcm_sw_params_set_stop_threshold(stream->pcm_handle,
sw_params, stream->alsa_bufsize_frames)) < 0){
WARN("Unable set stop threshold to %lu: %d (%s)\n",
stream->alsa_bufsize_frames, err, snd_strerror(err));
params->result = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
if((err = snd_pcm_sw_params(stream->pcm_handle, sw_params)) < 0){
WARN("Unable to set sw params: %d (%s)\n", err, snd_strerror(err));
params->result = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
if((err = snd_pcm_prepare(stream->pcm_handle)) < 0){
WARN("Unable to prepare device: %d (%s)\n", err, snd_strerror(err));
params->result = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
/* Bear in mind weird situations where
* ALSA period (50ms) > mmdevapi buffer (3x10ms)
* or surprising rounding as seen with 22050x8x1 with Pulse:
* ALSA period 220 vs. 221 frames in mmdevapi and
* buffer 883 vs. 2205 frames in mmdevapi! */
stream->bufsize_frames = muldiv(params->duration, params->fmt->nSamplesPerSec, 10000000);
if(params->share == AUDCLNT_SHAREMODE_EXCLUSIVE)
stream->bufsize_frames -= stream->bufsize_frames % stream->mmdev_period_frames;
stream->hidden_frames = stream->alsa_period_frames + stream->mmdev_period_frames +
muldiv(params->fmt->nSamplesPerSec, EXTRA_SAFE_RT, 10000000);
/* leave no less than about 1.33ms or 256 bytes of data after a rewind */
stream->safe_rewind_frames = max(256 / params->fmt->nBlockAlign, muldiv(133, params->fmt->nSamplesPerSec, 100000));
/* Check if the ALSA buffer is so small that it will run out before
* the next MMDevAPI period tick occurs. Allow a little wiggle room
* with 120% of the period time. */
if(stream->alsa_bufsize_frames < 1.2 * stream->mmdev_period_frames)
FIXME("ALSA buffer time is too small. Expect underruns. (%lu < %u * 1.2)\n",
stream->alsa_bufsize_frames, stream->mmdev_period_frames);
fmtex = clone_format(params->fmt);
if(!fmtex){
params->result = E_OUTOFMEMORY;
goto exit;
}
stream->fmt = &fmtex->Format;
size = stream->bufsize_frames * params->fmt->nBlockAlign;
if(NtAllocateVirtualMemory(GetCurrentProcess(), (void **)&stream->local_buffer, 0, &size,
MEM_COMMIT, PAGE_READWRITE)){
params->result = E_OUTOFMEMORY;
goto exit;
}
silence_buffer(stream, stream->local_buffer, stream->bufsize_frames);
stream->silence_buf = malloc(stream->alsa_period_frames * stream->fmt->nBlockAlign);
if(!stream->silence_buf){
params->result = E_OUTOFMEMORY;
goto exit;
}
silence_buffer(stream, stream->silence_buf, stream->alsa_period_frames);
stream->vols = malloc(params->fmt->nChannels * sizeof(float));
if(!stream->vols){
params->result = E_OUTOFMEMORY;
goto exit;
}
for(i = 0; i < params->fmt->nChannels; ++i)
stream->vols[i] = 1.f;
stream->share = params->share;
stream->flags = params->flags;
pthread_mutex_init(&stream->lock, NULL);
TRACE("ALSA period: %lu frames\n", stream->alsa_period_frames);
TRACE("ALSA buffer: %lu frames\n", stream->alsa_bufsize_frames);
TRACE("MMDevice period: %u frames\n", stream->mmdev_period_frames);
TRACE("MMDevice buffer: %u frames\n", stream->bufsize_frames);
exit:
free(sw_params);
if(FAILED(params->result)){
snd_pcm_close(stream->pcm_handle);
if(stream->local_buffer){
size = 0;
NtFreeVirtualMemory(GetCurrentProcess(), (void **)&stream->local_buffer, &size, MEM_RELEASE);
}
free(stream->silence_buf);
free(stream->hw_params);
free(stream->fmt);
free(stream->vols);
free(stream);
}else{
*params->stream = stream;
}
return STATUS_SUCCESS;
}
static NTSTATUS release_stream(void *args)
{
struct release_stream_params *params = args;
struct alsa_stream *stream = params->stream;
SIZE_T size;
snd_pcm_drop(stream->pcm_handle);
snd_pcm_close(stream->pcm_handle);
if(stream->local_buffer){
size = 0;
NtFreeVirtualMemory(GetCurrentProcess(), (void **)&stream->local_buffer, &size, MEM_RELEASE);
}
if(stream->tmp_buffer){
size = 0;
NtFreeVirtualMemory(GetCurrentProcess(), (void **)&stream->tmp_buffer, &size, MEM_RELEASE);
}
/* free(stream->remapping_buf); */
free(stream->silence_buf);
free(stream->hw_params);
free(stream->fmt);
free(stream->vols);
pthread_mutex_destroy(&stream->lock);
free(stream);
params->result = S_OK;
return STATUS_SUCCESS;
}
static NTSTATUS is_format_supported(void *args)
{
struct is_format_supported_params *params = args;
@ -922,6 +1223,8 @@ exit:
unixlib_entry_t __wine_unix_call_funcs[] =
{
get_endpoint_ids,
create_stream,
release_stream,
is_format_supported,
get_mix_format,
};

491
dlls/winealsa.drv/mmdevdrv.c
View File

@ -62,7 +62,6 @@ unixlib_handle_t alsa_handle = 0;
static const REFERENCE_TIME DefaultPeriod = 100000;
static const REFERENCE_TIME MinimumPeriod = 50000;
#define EXTRA_SAFE_RT 40000
struct ACImpl;
typedef struct ACImpl ACImpl;
@ -253,6 +252,20 @@ static void alsa_unlock(struct alsa_stream *stream)
pthread_mutex_unlock(&stream->lock);
}
static HRESULT alsa_stream_release(struct alsa_stream *stream)
{
struct release_stream_params params;
/* FIXME: to be moved with remap_channels() */
HeapFree(GetProcessHeap(), 0, stream->remapping_buf);
params.stream = stream;
ALSA_CALL(release_stream, &params);
return params.result;
}
static void set_device_guid(EDataFlow flow, HKEY drv_key, const WCHAR *key_name,
GUID *guid)
{
@ -325,11 +338,6 @@ static void get_device_guid(EDataFlow flow, const char *device, GUID *guid)
RegCloseKey(key);
}
static snd_pcm_stream_t alsa_get_direction(EDataFlow flow)
{
return (flow == eRender) ? SND_PCM_STREAM_PLAYBACK : SND_PCM_STREAM_CAPTURE;
}
static void set_stream_volumes(ACImpl *This)
{
struct alsa_stream *stream = This->stream;
@ -459,34 +467,6 @@ static BOOL get_alsa_name_by_guid(GUID *guid, char *name, DWORD name_size, EData
return FALSE;
}
static HRESULT alsa_open_device(const char *alsa_name, EDataFlow flow, snd_pcm_t **pcm_handle,
snd_pcm_hw_params_t **hw_params)
{
int err;
if(flow != eRender && flow != eCapture)
return E_UNEXPECTED;
err = snd_pcm_open(pcm_handle, alsa_name, alsa_get_direction(flow), SND_PCM_NONBLOCK);
if(err < 0){
WARN("Unable to open PCM \"%s\": %d (%s)\n", alsa_name, err, snd_strerror(err));
switch(err){
case -EBUSY:
return AUDCLNT_E_DEVICE_IN_USE;
default:
return AUDCLNT_E_ENDPOINT_CREATE_FAILED;
}
}
*hw_params = HeapAlloc(GetProcessHeap(), 0, snd_pcm_hw_params_sizeof());
if(!*hw_params){
snd_pcm_close(*pcm_handle);
return E_OUTOFMEMORY;
}
return S_OK;
}
HRESULT WINAPI AUDDRV_GetAudioEndpoint(GUID *guid, IMMDevice *dev, IAudioClient **out)
{
ACImpl *This;
@ -570,7 +550,6 @@ static ULONG WINAPI AudioClient_AddRef(IAudioClient3 *iface)
static ULONG WINAPI AudioClient_Release(IAudioClient3 *iface)
{
ACImpl *This = impl_from_IAudioClient3(iface);
struct alsa_stream *stream = This->stream;
ULONG ref;
ref = InterlockedDecrement(&This->ref);
@ -596,26 +575,8 @@ static ULONG WINAPI AudioClient_Release(IAudioClient3 *iface)
LeaveCriticalSection(&g_sessions_lock);
}
HeapFree(GetProcessHeap(), 0, This->vols);
if (stream){
SIZE_T size;
snd_pcm_drop(stream->pcm_handle);
snd_pcm_close(stream->pcm_handle);
if(stream->local_buffer){
size = 0;
NtFreeVirtualMemory(GetCurrentProcess(), (void **)&stream->local_buffer, &size, MEM_RELEASE);
}
if(stream->tmp_buffer){
size = 0;
NtFreeVirtualMemory(GetCurrentProcess(), (void **)&stream->tmp_buffer, &size, MEM_RELEASE);
}
HeapFree(GetProcessHeap(), 0, stream->remapping_buf);
HeapFree(GetProcessHeap(), 0, stream->silence_buf);
HeapFree(GetProcessHeap(), 0, stream->hw_params);
CoTaskMemFree(stream->fmt);
HeapFree(GetProcessHeap(), 0, stream->vols);
pthread_mutex_destroy(&stream->lock);
HeapFree(GetProcessHeap(), 0, stream);
}
if (This->stream)
alsa_stream_release(This->stream);
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
@ -655,66 +616,6 @@ static void dump_fmt(const WAVEFORMATEX *fmt)
}
}
static WAVEFORMATEX *clone_format(const WAVEFORMATEX *fmt)
{
WAVEFORMATEX *ret;
size_t size;
if(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
size = sizeof(WAVEFORMATEXTENSIBLE);
else
size = sizeof(WAVEFORMATEX);
ret = CoTaskMemAlloc(size);
if(!ret)
return NULL;
memcpy(ret, fmt, size);
ret->cbSize = size - sizeof(WAVEFORMATEX);
return ret;
}
static snd_pcm_format_t alsa_format(const WAVEFORMATEX *fmt)
{
snd_pcm_format_t format = SND_PCM_FORMAT_UNKNOWN;
const WAVEFORMATEXTENSIBLE *fmtex = (const WAVEFORMATEXTENSIBLE *)fmt;
if(fmt->wFormatTag == WAVE_FORMAT_PCM ||
(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
IsEqualGUID(&fmtex->SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))){
if(fmt->wBitsPerSample == 8)
format = SND_PCM_FORMAT_U8;
else if(fmt->wBitsPerSample == 16)
format = SND_PCM_FORMAT_S16_LE;
else if(fmt->wBitsPerSample == 24)
format = SND_PCM_FORMAT_S24_3LE;
else if(fmt->wBitsPerSample == 32)
format = SND_PCM_FORMAT_S32_LE;
else
WARN("Unsupported bit depth: %u\n", fmt->wBitsPerSample);
if(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
fmt->wBitsPerSample != fmtex->Samples.wValidBitsPerSample){
if(fmtex->Samples.wValidBitsPerSample == 20 && fmt->wBitsPerSample == 24)
format = SND_PCM_FORMAT_S20_3LE;
else
WARN("Unsupported ValidBits: %u\n", fmtex->Samples.wValidBitsPerSample);
}
}else if(fmt->wFormatTag == WAVE_FORMAT_IEEE_FLOAT ||
(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
IsEqualGUID(&fmtex->SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT))){
if(fmt->wBitsPerSample == 32)
format = SND_PCM_FORMAT_FLOAT_LE;
else if(fmt->wBitsPerSample == 64)
format = SND_PCM_FORMAT_FLOAT64_LE;
else
WARN("Unsupported float size: %u\n", fmt->wBitsPerSample);
}else
WARN("Unknown wave format: %04x\n", fmt->wFormatTag);
return format;
}
static void session_init_vols(AudioSession *session, UINT channels)
{
if(session->channel_count < channels){
@ -794,123 +695,6 @@ static HRESULT get_audio_session(const GUID *sessionguid,
return S_OK;
}
static int alsa_channel_index(DWORD flag)
{
switch(flag){
case SPEAKER_FRONT_LEFT:
return 0;
case SPEAKER_FRONT_RIGHT:
return 1;
case SPEAKER_BACK_LEFT:
return 2;
case SPEAKER_BACK_RIGHT:
return 3;
case SPEAKER_FRONT_CENTER:
return 4;
case SPEAKER_LOW_FREQUENCY:
return 5;
case SPEAKER_SIDE_LEFT:
return 6;
case SPEAKER_SIDE_RIGHT:
return 7;
}
return -1;
}
static BOOL need_remapping(ACImpl *This, const WAVEFORMATEX *fmt, int *map)
{
unsigned int i;
for(i = 0; i < fmt->nChannels; ++i){
if(map[i] != i)
return TRUE;
}
return FALSE;
}
static DWORD get_channel_mask(unsigned int channels)
{
switch(channels){
case 0:
return 0;
case 1:
return KSAUDIO_SPEAKER_MONO;
case 2:
return KSAUDIO_SPEAKER_STEREO;
case 3:
return KSAUDIO_SPEAKER_STEREO | SPEAKER_LOW_FREQUENCY;
case 4:
return KSAUDIO_SPEAKER_QUAD; /* not _SURROUND */
case 5:
return KSAUDIO_SPEAKER_QUAD | SPEAKER_LOW_FREQUENCY;
case 6:
return KSAUDIO_SPEAKER_5POINT1; /* not 5POINT1_SURROUND */
case 7:
return KSAUDIO_SPEAKER_5POINT1 | SPEAKER_BACK_CENTER;
case 8:
return KSAUDIO_SPEAKER_7POINT1_SURROUND; /* Vista deprecates 7POINT1 */
}
FIXME("Unknown speaker configuration: %u\n", channels);
return 0;
}
static HRESULT map_channels(ACImpl *This, const WAVEFORMATEX *fmt, int *alsa_channels, int *map)
{
BOOL need_remap;
if(This->dataflow != eCapture && (fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE || fmt->nChannels > 2) ){
WAVEFORMATEXTENSIBLE *fmtex = (void*)fmt;
DWORD mask, flag = SPEAKER_FRONT_LEFT;
UINT i = 0;
if(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
fmtex->dwChannelMask != 0)
mask = fmtex->dwChannelMask;
else
mask = get_channel_mask(fmt->nChannels);
*alsa_channels = 0;
while(i < fmt->nChannels && !(flag & SPEAKER_RESERVED)){
if(mask & flag){
map[i] = alsa_channel_index(flag);
TRACE("Mapping mmdevapi channel %u (0x%x) to ALSA channel %d\n",
i, flag, map[i]);
if(map[i] >= *alsa_channels)
*alsa_channels = map[i] + 1;
++i;
}
flag <<= 1;
}
while(i < fmt->nChannels){
map[i] = *alsa_channels;
TRACE("Mapping mmdevapi channel %u to ALSA channel %d\n",
i, map[i]);
++*alsa_channels;
++i;
}
for(i = 0; i < fmt->nChannels; ++i){
if(map[i] == -1){
map[i] = *alsa_channels;
++*alsa_channels;
TRACE("Remapping mmdevapi channel %u to ALSA channel %d\n",
i, map[i]);
}
}
need_remap = need_remapping(This, fmt, map);
}else{
*alsa_channels = fmt->nChannels;
need_remap = FALSE;
}
TRACE("need_remapping: %u, alsa_channels: %d\n", need_remap, *alsa_channels);
return need_remap ? S_OK : S_FALSE;
}
static void silence_buffer(struct alsa_stream *stream, BYTE *buffer, UINT32 frames)
{
WAVEFORMATEXTENSIBLE *fmtex = (WAVEFORMATEXTENSIBLE*)stream->fmt;
@ -929,13 +713,9 @@ static HRESULT WINAPI AudioClient_Initialize(IAudioClient3 *iface,
const GUID *sessionguid)
{
ACImpl *This = impl_from_IAudioClient3(iface);
struct create_stream_params params;
struct alsa_stream *stream;
snd_pcm_sw_params_t *sw_params = NULL;
snd_pcm_format_t format;
unsigned int rate, alsa_period_us;
int err, i;
HRESULT hr = S_OK;
SIZE_T size;
unsigned int i;
TRACE("(%p)->(%x, %x, %s, %s, %p, %s)\n", This, mode, flags,
wine_dbgstr_longlong(duration), wine_dbgstr_longlong(period), fmt, debugstr_guid(sessionguid));
@ -997,237 +777,40 @@ static HRESULT WINAPI AudioClient_Initialize(IAudioClient3 *iface,
dump_fmt(fmt);
stream = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*This->stream));
if(!stream){
params.alsa_name = This->alsa_name;
params.flow = This->dataflow;
params.share = mode;
params.flags = flags;
params.duration = duration;
params.period = period;
params.fmt = fmt;
params.stream = &stream;
ALSA_CALL(create_stream, &params);
if(FAILED(params.result)){
LeaveCriticalSection(&g_sessions_lock);
return E_OUTOFMEMORY;
return params.result;
}
hr = alsa_open_device(This->alsa_name, This->dataflow, &stream->pcm_handle, &stream->hw_params);
if(FAILED(hr)){
LeaveCriticalSection(&g_sessions_lock);
return hr;
}
stream->need_remapping = map_channels(This, fmt, &stream->alsa_channels, stream->alsa_channel_map) == S_OK;
if((err = snd_pcm_hw_params_any(stream->pcm_handle, stream->hw_params)) < 0){
WARN("Unable to get hw_params: %d (%s)\n", err, snd_strerror(err));
hr = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
if((err = snd_pcm_hw_params_set_access(stream->pcm_handle, stream->hw_params,
SND_PCM_ACCESS_RW_INTERLEAVED)) < 0){
WARN("Unable to set access: %d (%s)\n", err, snd_strerror(err));
hr = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
format = alsa_format(fmt);
if (format == SND_PCM_FORMAT_UNKNOWN){
hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
goto exit;
}
if((err = snd_pcm_hw_params_set_format(stream->pcm_handle, stream->hw_params,
format)) < 0){
WARN("Unable to set ALSA format to %u: %d (%s)\n", format, err,
snd_strerror(err));
hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
goto exit;
}
stream->alsa_format = format;
stream->flow = This->dataflow;
rate = fmt->nSamplesPerSec;
if((err = snd_pcm_hw_params_set_rate_near(stream->pcm_handle, stream->hw_params,
&rate, NULL)) < 0){
WARN("Unable to set rate to %u: %d (%s)\n", rate, err,
snd_strerror(err));
hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
goto exit;
}
if((err = snd_pcm_hw_params_set_channels(stream->pcm_handle, stream->hw_params,
stream->alsa_channels)) < 0){
WARN("Unable to set channels to %u: %d (%s)\n", fmt->nChannels, err,
snd_strerror(err));
hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
goto exit;
}
stream->mmdev_period_rt = period;
alsa_period_us = stream->mmdev_period_rt / 10;
if((err = snd_pcm_hw_params_set_period_time_near(stream->pcm_handle,
stream->hw_params, &alsa_period_us, NULL)) < 0)
WARN("Unable to set period time near %u: %d (%s)\n", alsa_period_us,
err, snd_strerror(err));
/* ALSA updates the output variable alsa_period_us */
stream->mmdev_period_frames = MulDiv(fmt->nSamplesPerSec,
stream->mmdev_period_rt, 10000000);
/* Buffer 4 ALSA periods if large enough, else 4 mmdevapi periods */
stream->alsa_bufsize_frames = stream->mmdev_period_frames * 4;
if(err < 0 || alsa_period_us < period / 10)
err = snd_pcm_hw_params_set_buffer_size_near(stream->pcm_handle,
stream->hw_params, &stream->alsa_bufsize_frames);
else{
unsigned int periods = 4;
err = snd_pcm_hw_params_set_periods_near(stream->pcm_handle, stream->hw_params, &periods, NULL);
}
if(err < 0)
WARN("Unable to set buffer size: %d (%s)\n", err, snd_strerror(err));
if((err = snd_pcm_hw_params(stream->pcm_handle, stream->hw_params)) < 0){
WARN("Unable to set hw params: %d (%s)\n", err, snd_strerror(err));
hr = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
if((err = snd_pcm_hw_params_get_period_size(stream->hw_params,
&stream->alsa_period_frames, NULL)) < 0){
WARN("Unable to get period size: %d (%s)\n", err, snd_strerror(err));
hr = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
if((err = snd_pcm_hw_params_get_buffer_size(stream->hw_params,
&stream->alsa_bufsize_frames)) < 0){
WARN("Unable to get buffer size: %d (%s)\n", err, snd_strerror(err));
hr = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
sw_params = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, snd_pcm_sw_params_sizeof());
if(!sw_params){
hr = E_OUTOFMEMORY;
goto exit;
}
if((err = snd_pcm_sw_params_current(stream->pcm_handle, sw_params)) < 0){
WARN("Unable to get sw_params: %d (%s)\n", err, snd_strerror(err));
hr = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
if((err = snd_pcm_sw_params_set_start_threshold(stream->pcm_handle,
sw_params, 1)) < 0){
WARN("Unable set start threshold to 1: %d (%s)\n", err, snd_strerror(err));
hr = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
if((err = snd_pcm_sw_params_set_stop_threshold(stream->pcm_handle,
sw_params, stream->alsa_bufsize_frames)) < 0){
WARN("Unable set stop threshold to %lu: %d (%s)\n",
stream->alsa_bufsize_frames, err, snd_strerror(err));
hr = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
if((err = snd_pcm_sw_params(stream->pcm_handle, sw_params)) < 0){
WARN("Unable to set sw params: %d (%s)\n", err, snd_strerror(err));
hr = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
if((err = snd_pcm_prepare(stream->pcm_handle)) < 0){
WARN("Unable to prepare device: %d (%s)\n", err, snd_strerror(err));
hr = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
/* Bear in mind weird situations where
* ALSA period (50ms) > mmdevapi buffer (3x10ms)
* or surprising rounding as seen with 22050x8x1 with Pulse:
* ALSA period 220 vs. 221 frames in mmdevapi and
* buffer 883 vs. 2205 frames in mmdevapi! */
stream->bufsize_frames = MulDiv(duration, fmt->nSamplesPerSec, 10000000);
if(mode == AUDCLNT_SHAREMODE_EXCLUSIVE)
stream->bufsize_frames -= stream->bufsize_frames % stream->mmdev_period_frames;
stream->hidden_frames = stream->alsa_period_frames + stream->mmdev_period_frames +
MulDiv(fmt->nSamplesPerSec, EXTRA_SAFE_RT, 10000000);
/* leave no less than about 1.33ms or 256 bytes of data after a rewind */
stream->safe_rewind_frames = max(256 / fmt->nBlockAlign, MulDiv(133, fmt->nSamplesPerSec, 100000));
/* Check if the ALSA buffer is so small that it will run out before
* the next MMDevAPI period tick occurs. Allow a little wiggle room
* with 120% of the period time. */
if(stream->alsa_bufsize_frames < 1.2 * stream->mmdev_period_frames)
FIXME("ALSA buffer time is too small. Expect underruns. (%lu < %u * 1.2)\n",
stream->alsa_bufsize_frames, stream->mmdev_period_frames);
stream->fmt = clone_format(fmt);
if(!stream->fmt){
hr = E_OUTOFMEMORY;
goto exit;
}
size = stream->bufsize_frames * fmt->nBlockAlign;
if(NtAllocateVirtualMemory(GetCurrentProcess(), (void **)&stream->local_buffer, 0, &size,
MEM_COMMIT, PAGE_READWRITE)){
hr = E_OUTOFMEMORY;
goto exit;
}
silence_buffer(stream, stream->local_buffer, stream->bufsize_frames);
stream->silence_buf = HeapAlloc(GetProcessHeap(), 0,
stream->alsa_period_frames * stream->fmt->nBlockAlign);
if(!stream->silence_buf){
hr = E_OUTOFMEMORY;
goto exit;
}
pthread_mutex_init(&stream->lock, NULL);
silence_buffer(stream, stream->silence_buf, stream->alsa_period_frames);
This->channel_count = fmt->nChannels;
This->vols = HeapAlloc(GetProcessHeap(), 0, This->channel_count * sizeof(float));
if(!This->vols){
hr = E_OUTOFMEMORY;
params.result = E_OUTOFMEMORY;
goto exit;
}
for(i = 0; i < This->channel_count; ++i)
This->vols[i] = 1.f;
stream->vols = HeapAlloc(GetProcessHeap(), 0, fmt->nChannels * sizeof(float));
if(!stream->vols){
hr = E_OUTOFMEMORY;
goto exit;
}
for(i = 0; i < fmt->nChannels; ++i)
stream->vols[i] = 1.f;
stream->share = mode;
stream->flags = flags;
hr = get_audio_session(sessionguid, This->parent, This->channel_count,
&This->session);
if(FAILED(hr))
params.result = get_audio_session(sessionguid, This->parent, This->channel_count,
&This->session);
if(FAILED(params.result))
goto exit;
list_add_tail(&This->session->clients, &This->entry);
TRACE("ALSA period: %lu frames\n", stream->alsa_period_frames);
TRACE("ALSA buffer: %lu frames\n", stream->alsa_bufsize_frames);
TRACE("MMDevice period: %u frames\n", stream->mmdev_period_frames);
TRACE("MMDevice buffer: %u frames\n", stream->bufsize_frames);
exit:
HeapFree(GetProcessHeap(), 0, sw_params);
if(FAILED(hr)){
snd_pcm_close(stream->pcm_handle);
if(stream->local_buffer){
size = 0;
NtFreeVirtualMemory(GetCurrentProcess(), (void **)&stream->local_buffer, &size, MEM_RELEASE);
}
CoTaskMemFree(stream->fmt);
stream->fmt = NULL;
HeapFree(GetProcessHeap(), 0, stream->vols);
HeapFree(GetProcessHeap(), 0, stream);
if(FAILED(params.result)){
alsa_stream_release(stream);
HeapFree(GetProcessHeap(), 0, This->vols);
This->vols = NULL;
}else{
@ -1237,7 +820,7 @@ exit:
LeaveCriticalSection(&g_sessions_lock);
return hr;
return params.result;
}
static HRESULT WINAPI AudioClient_GetBufferSize(IAudioClient3 *iface,

21
dlls/winealsa.drv/unixlib.h
View File

@ -71,6 +71,25 @@ struct get_endpoint_ids_params
unsigned int default_idx;
};
struct create_stream_params
{
const char *alsa_name;
EDataFlow flow;
AUDCLNT_SHAREMODE share;
DWORD flags;
REFERENCE_TIME duration;
REFERENCE_TIME period;
const WAVEFORMATEX *fmt;
HRESULT result;
struct alsa_stream **stream;
};
struct release_stream_params
{
struct alsa_stream *stream;
HRESULT result;
};
struct is_format_supported_params
{
const char *alsa_name;
@ -92,6 +111,8 @@ struct get_mix_format_params
enum alsa_funcs
{
alsa_get_endpoint_ids,
alsa_create_stream,
alsa_release_stream,
alsa_is_format_supported,
alsa_get_mix_format,
};