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/*
* Copyright 2010 Maarten Lankhorst for CodeWeavers
* Copyright 2011 Andrew Eikum for CodeWeavers
* Copyright 2022 Huw Davies
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define NONAMELESSUNION
#define COBJMACROS
#include "config.h"
#include <stdarg.h>
#include <stdio.h>
#include <math.h>
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winreg.h"
#include "wine/debug.h"
#include "wine/unicode.h"
#include "wine/list.h"
#include "wine/unixlib.h"
#include "propsys.h"
#include "initguid.h"
#include "ole2.h"
#include "propkey.h"
#include "mmdeviceapi.h"
#include "devpkey.h"
#include "mmsystem.h"
#include "dsound.h"
#include "initguid.h"
#include "endpointvolume.h"
#include "audioclient.h"
#include "audiopolicy.h"
#include <alsa/asoundlib.h>
#include "unixlib.h"
WINE_DEFAULT_DEBUG_CHANNEL(alsa);
unixlib_handle_t alsa_handle = 0;
#define NULL_PTR_ERR MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, RPC_X_NULL_REF_POINTER)
static const REFERENCE_TIME DefaultPeriod = 100000;
static const REFERENCE_TIME MinimumPeriod = 50000;
#define EXTRA_SAFE_RT 40000
struct ACImpl;
typedef struct ACImpl ACImpl;
typedef struct _AudioSession {
GUID guid;
struct list clients;
IMMDevice *device;
float master_vol;
UINT32 channel_count;
float *channel_vols;
BOOL mute;
struct list entry;
} AudioSession;
typedef struct _AudioSessionWrapper {
IAudioSessionControl2 IAudioSessionControl2_iface;
IChannelAudioVolume IChannelAudioVolume_iface;
ISimpleAudioVolume ISimpleAudioVolume_iface;
LONG ref;
ACImpl *client;
AudioSession *session;
} AudioSessionWrapper;
struct ACImpl {
IAudioClient3 IAudioClient3_iface;
IAudioRenderClient IAudioRenderClient_iface;
IAudioCaptureClient IAudioCaptureClient_iface;
IAudioClock IAudioClock_iface;
IAudioClock2 IAudioClock2_iface;
IAudioStreamVolume IAudioStreamVolume_iface;
LONG ref;
IMMDevice *parent;
IUnknown *pUnkFTMarshal;
EDataFlow dataflow;
float *vols;
UINT32 channel_count;
struct alsa_stream *stream;
HANDLE timer;
CRITICAL_SECTION lock;
AudioSession *session;
AudioSessionWrapper *session_wrapper;
struct list entry;
/* Keep at end */
char alsa_name[1];
};
typedef struct _SessionMgr {
IAudioSessionManager2 IAudioSessionManager2_iface;
LONG ref;
IMMDevice *device;
} SessionMgr;
static HANDLE g_timer_q;
static CRITICAL_SECTION g_sessions_lock;
static CRITICAL_SECTION_DEBUG g_sessions_lock_debug =
{
0, 0, &g_sessions_lock,
{ &g_sessions_lock_debug.ProcessLocksList, &g_sessions_lock_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": g_sessions_lock") }
};
static CRITICAL_SECTION g_sessions_lock = { &g_sessions_lock_debug, -1, 0, 0, 0, 0 };
static struct list g_sessions = LIST_INIT(g_sessions);
static const WCHAR drv_key_devicesW[] = {'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','\\','d','e','v','i','c','e','s',0};
static const WCHAR guidW[] = {'g','u','i','d',0};
static const IAudioClient3Vtbl AudioClient3_Vtbl;
static const IAudioRenderClientVtbl AudioRenderClient_Vtbl;
static const IAudioCaptureClientVtbl AudioCaptureClient_Vtbl;
static const IAudioSessionControl2Vtbl AudioSessionControl2_Vtbl;
static const ISimpleAudioVolumeVtbl SimpleAudioVolume_Vtbl;
static const IAudioClockVtbl AudioClock_Vtbl;
static const IAudioClock2Vtbl AudioClock2_Vtbl;
static const IAudioStreamVolumeVtbl AudioStreamVolume_Vtbl;
static const IChannelAudioVolumeVtbl ChannelAudioVolume_Vtbl;
static const IAudioSessionManager2Vtbl AudioSessionManager2_Vtbl;
static AudioSessionWrapper *AudioSessionWrapper_Create(ACImpl *client);
static inline ACImpl *impl_from_IAudioClient3(IAudioClient3 *iface)
{
return CONTAINING_RECORD(iface, ACImpl, IAudioClient3_iface);
}
static inline ACImpl *impl_from_IAudioRenderClient(IAudioRenderClient *iface)
{
return CONTAINING_RECORD(iface, ACImpl, IAudioRenderClient_iface);
}
static inline ACImpl *impl_from_IAudioCaptureClient(IAudioCaptureClient *iface)
{
return CONTAINING_RECORD(iface, ACImpl, IAudioCaptureClient_iface);
}
static inline AudioSessionWrapper *impl_from_IAudioSessionControl2(IAudioSessionControl2 *iface)
{
return CONTAINING_RECORD(iface, AudioSessionWrapper, IAudioSessionControl2_iface);
}
static inline AudioSessionWrapper *impl_from_ISimpleAudioVolume(ISimpleAudioVolume *iface)
{
return CONTAINING_RECORD(iface, AudioSessionWrapper, ISimpleAudioVolume_iface);
}
static inline AudioSessionWrapper *impl_from_IChannelAudioVolume(IChannelAudioVolume *iface)
{
return CONTAINING_RECORD(iface, AudioSessionWrapper, IChannelAudioVolume_iface);
}
static inline ACImpl *impl_from_IAudioClock(IAudioClock *iface)
{
return CONTAINING_RECORD(iface, ACImpl, IAudioClock_iface);
}
static inline ACImpl *impl_from_IAudioClock2(IAudioClock2 *iface)
{
return CONTAINING_RECORD(iface, ACImpl, IAudioClock2_iface);
}
static inline ACImpl *impl_from_IAudioStreamVolume(IAudioStreamVolume *iface)
{
return CONTAINING_RECORD(iface, ACImpl, IAudioStreamVolume_iface);
}
static inline SessionMgr *impl_from_IAudioSessionManager2(IAudioSessionManager2 *iface)
{
return CONTAINING_RECORD(iface, SessionMgr, IAudioSessionManager2_iface);
}
BOOL WINAPI DllMain(HINSTANCE dll, DWORD reason, void *reserved)
{
switch (reason)
{
case DLL_PROCESS_ATTACH:
if(NtQueryVirtualMemory(GetCurrentProcess(), dll, MemoryWineUnixFuncs,
&alsa_handle, sizeof(alsa_handle), NULL))
return FALSE;
g_timer_q = CreateTimerQueue();
if(!g_timer_q)
return FALSE;
break;
case DLL_PROCESS_DETACH:
if (reserved) break;
DeleteCriticalSection(&g_sessions_lock);
break;
}
return TRUE;
}
/* From <dlls/mmdevapi/mmdevapi.h> */
enum DriverPriority {
Priority_Unavailable = 0,
Priority_Low,
Priority_Neutral,
Priority_Preferred
};
int WINAPI AUDDRV_GetPriority(void)
{
return Priority_Neutral;
}
static void set_device_guid(EDataFlow flow, HKEY drv_key, const WCHAR *key_name,
GUID *guid)
{
HKEY key;
BOOL opened = FALSE;
LONG lr;
if(!drv_key){
lr = RegCreateKeyExW(HKEY_CURRENT_USER, drv_key_devicesW, 0, NULL, 0, KEY_WRITE,
NULL, &drv_key, NULL);
if(lr != ERROR_SUCCESS){
ERR("RegCreateKeyEx(drv_key) failed: %u\n", lr);
return;
}
opened = TRUE;
}
lr = RegCreateKeyExW(drv_key, key_name, 0, NULL, 0, KEY_WRITE,
NULL, &key, NULL);
if(lr != ERROR_SUCCESS){
ERR("RegCreateKeyEx(%s) failed: %u\n", wine_dbgstr_w(key_name), lr);
goto exit;
}
lr = RegSetValueExW(key, guidW, 0, REG_BINARY, (BYTE*)guid,
sizeof(GUID));
if(lr != ERROR_SUCCESS)
ERR("RegSetValueEx(%s\\guid) failed: %u\n", wine_dbgstr_w(key_name), lr);
RegCloseKey(key);
exit:
if(opened)
RegCloseKey(drv_key);
}
static void get_device_guid(EDataFlow flow, const char *device, GUID *guid)
{
HKEY key = NULL, dev_key;
DWORD type, size = sizeof(*guid);
WCHAR key_name[256];
if(flow == eCapture)
key_name[0] = '1';
else
key_name[0] = '0';
key_name[1] = ',';
MultiByteToWideChar(CP_UNIXCP, 0, device, -1, key_name + 2, ARRAY_SIZE(key_name) - 2);
if(RegOpenKeyExW(HKEY_CURRENT_USER, drv_key_devicesW, 0, KEY_WRITE|KEY_READ, &key) == ERROR_SUCCESS){
if(RegOpenKeyExW(key, key_name, 0, KEY_READ, &dev_key) == ERROR_SUCCESS){
if(RegQueryValueExW(dev_key, guidW, 0, &type,
(BYTE*)guid, &size) == ERROR_SUCCESS){
if(type == REG_BINARY){
RegCloseKey(dev_key);
RegCloseKey(key);
return;
}
ERR("Invalid type for device %s GUID: %u; ignoring and overwriting\n",
wine_dbgstr_w(key_name), type);
}
RegCloseKey(dev_key);
}
}
CoCreateGuid(guid);
set_device_guid(flow, key, key_name, guid);
if(key)
RegCloseKey(key);
}
static snd_pcm_stream_t alsa_get_direction(EDataFlow flow)
{
return (flow == eRender) ? SND_PCM_STREAM_PLAYBACK : SND_PCM_STREAM_CAPTURE;
}
HRESULT WINAPI AUDDRV_GetEndpointIDs(EDataFlow flow, WCHAR ***ids_out, GUID **guids_out,
UINT *num, UINT *def_index)
{
struct get_endpoint_ids_params params;
unsigned int i;
GUID *guids = NULL;
WCHAR **ids = NULL;
TRACE("%d %p %p %p %p\n", flow, ids, guids, num, def_index);
params.flow = flow;
params.size = 1000;
params.endpoints = NULL;
do{
HeapFree(GetProcessHeap(), 0, params.endpoints);
params.endpoints = HeapAlloc(GetProcessHeap(), 0, params.size);
ALSA_CALL(get_endpoint_ids, &params);
}while(params.result == HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER));
if(FAILED(params.result)) goto end;
ids = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, params.num * sizeof(*ids));
guids = HeapAlloc(GetProcessHeap(), 0, params.num * sizeof(*guids));
if(!ids || !guids){
params.result = E_OUTOFMEMORY;
goto end;
}
for(i = 0; i < params.num; i++){
unsigned int size = (strlenW(params.endpoints[i].name) + 1) * sizeof(WCHAR);
ids[i] = HeapAlloc(GetProcessHeap(), 0, size);
if(!ids[i]){
params.result = E_OUTOFMEMORY;
goto end;
}
memcpy(ids[i], params.endpoints[i].name, size);
get_device_guid(flow, params.endpoints[i].device, guids + i);
}
*def_index = params.default_idx;
end:
HeapFree(GetProcessHeap(), 0, params.endpoints);
if(FAILED(params.result)){
HeapFree(GetProcessHeap(), 0, guids);
if(ids){
for(i = 0; i < params.num; i++)
HeapFree(GetProcessHeap(), 0, ids[i]);
HeapFree(GetProcessHeap(), 0, ids);
}
}else{
*ids_out = ids;
*guids_out = guids;
*num = params.num;
}
return params.result;
}
static BOOL get_alsa_name_by_guid(GUID *guid, char *name, DWORD name_size, EDataFlow *flow)
{
HKEY devices_key;
UINT i = 0;
WCHAR key_name[256];
DWORD key_name_size;
if(RegOpenKeyExW(HKEY_CURRENT_USER, drv_key_devicesW, 0, KEY_READ, &devices_key) != ERROR_SUCCESS){
ERR("No devices found in registry?\n");
return FALSE;
}
while(1){
HKEY key;
DWORD size, type;
GUID reg_guid;
key_name_size = ARRAY_SIZE(key_name);
if(RegEnumKeyExW(devices_key, i++, key_name, &key_name_size, NULL,
NULL, NULL, NULL) != ERROR_SUCCESS)
break;
if(RegOpenKeyExW(devices_key, key_name, 0, KEY_READ, &key) != ERROR_SUCCESS){
WARN("Couldn't open key: %s\n", wine_dbgstr_w(key_name));
continue;
}
size = sizeof(reg_guid);
if(RegQueryValueExW(key, guidW, 0, &type,
(BYTE*)&reg_guid, &size) == ERROR_SUCCESS){
if(IsEqualGUID(&reg_guid, guid)){
RegCloseKey(key);
RegCloseKey(devices_key);
TRACE("Found matching device key: %s\n", wine_dbgstr_w(key_name));
if(key_name[0] == '0')
*flow = eRender;
else if(key_name[0] == '1')
*flow = eCapture;
else{
ERR("Unknown device type: %c\n", key_name[0]);
return FALSE;
}
WideCharToMultiByte(CP_UNIXCP, 0, key_name + 2, -1, name, name_size, NULL, NULL);
return TRUE;
}
}
RegCloseKey(key);
}
RegCloseKey(devices_key);
WARN("No matching device in registry for GUID %s\n", debugstr_guid(guid));
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;
char alsa_name[256];
EDataFlow dataflow;
HRESULT hr;
int len;
TRACE("%s %p %p\n", debugstr_guid(guid), dev, out);
if(!get_alsa_name_by_guid(guid, alsa_name, sizeof(alsa_name), &dataflow))
return AUDCLNT_E_DEVICE_INVALIDATED;
if(dataflow != eRender && dataflow != eCapture)
return E_UNEXPECTED;
len = strlen(alsa_name);
This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, offsetof(ACImpl, alsa_name[len + 1]));
if(!This)
return E_OUTOFMEMORY;
This->IAudioClient3_iface.lpVtbl = &AudioClient3_Vtbl;
This->IAudioRenderClient_iface.lpVtbl = &AudioRenderClient_Vtbl;
This->IAudioCaptureClient_iface.lpVtbl = &AudioCaptureClient_Vtbl;
This->IAudioClock_iface.lpVtbl = &AudioClock_Vtbl;
This->IAudioClock2_iface.lpVtbl = &AudioClock2_Vtbl;
This->IAudioStreamVolume_iface.lpVtbl = &AudioStreamVolume_Vtbl;
hr = CoCreateFreeThreadedMarshaler((IUnknown *)&This->IAudioClient3_iface, &This->pUnkFTMarshal);
if (FAILED(hr)) {
HeapFree(GetProcessHeap(), 0, This);
return hr;
}
This->dataflow = dataflow;
memcpy(This->alsa_name, alsa_name, len + 1);
InitializeCriticalSection(&This->lock);
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": ACImpl.lock");
This->parent = dev;
IMMDevice_AddRef(This->parent);
*out = (IAudioClient *)&This->IAudioClient3_iface;
IAudioClient3_AddRef(&This->IAudioClient3_iface);
return S_OK;
}
static HRESULT WINAPI AudioClient_QueryInterface(IAudioClient3 *iface,
REFIID riid, void **ppv)
{
ACImpl *This = impl_from_IAudioClient3(iface);
TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
if(!ppv)
return E_POINTER;
*ppv = NULL;
if(IsEqualIID(riid, &IID_IUnknown) ||
IsEqualIID(riid, &IID_IAudioClient) ||
IsEqualIID(riid, &IID_IAudioClient2) ||
IsEqualIID(riid, &IID_IAudioClient3))
*ppv = iface;
else if(IsEqualIID(riid, &IID_IMarshal))
return IUnknown_QueryInterface(This->pUnkFTMarshal, riid, ppv);
if(*ppv){
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
WARN("Unknown interface %s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
static ULONG WINAPI AudioClient_AddRef(IAudioClient3 *iface)
{
ACImpl *This = impl_from_IAudioClient3(iface);
ULONG ref;
ref = InterlockedIncrement(&This->ref);
TRACE("(%p) Refcount now %u\n", This, ref);
return ref;
}
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);
TRACE("(%p) Refcount now %u\n", This, ref);
if(!ref){
if(This->timer){
HANDLE event;
DWORD wait;
event = CreateEventW(NULL, TRUE, FALSE, NULL);
wait = !DeleteTimerQueueTimer(g_timer_q, This->timer, event);
wait = wait && GetLastError() == ERROR_IO_PENDING;
if(event && wait)
WaitForSingleObject(event, INFINITE);
CloseHandle(event);
}
IAudioClient3_Stop(iface);
IMMDevice_Release(This->parent);
IUnknown_Release(This->pUnkFTMarshal);
This->lock.DebugInfo->Spare[0] = 0;
DeleteCriticalSection(&This->lock);
if(This->session){
EnterCriticalSection(&g_sessions_lock);
list_remove(&This->entry);
LeaveCriticalSection(&g_sessions_lock);
}
HeapFree(GetProcessHeap(), 0, This->vols);
if (stream){
snd_pcm_drop(stream->pcm_handle);
snd_pcm_close(stream->pcm_handle);
HeapFree(GetProcessHeap(), 0, stream->local_buffer);
HeapFree(GetProcessHeap(), 0, stream->remapping_buf);
HeapFree(GetProcessHeap(), 0, stream->silence_buf);
HeapFree(GetProcessHeap(), 0, stream->tmp_buffer);
HeapFree(GetProcessHeap(), 0, stream->hw_params);
CoTaskMemFree(stream->fmt);
HeapFree(GetProcessHeap(), 0, stream);
}
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static void dump_fmt(const WAVEFORMATEX *fmt)
{
TRACE("wFormatTag: 0x%x (", fmt->wFormatTag);
switch(fmt->wFormatTag){
case WAVE_FORMAT_PCM:
TRACE("WAVE_FORMAT_PCM");
break;
case WAVE_FORMAT_IEEE_FLOAT:
TRACE("WAVE_FORMAT_IEEE_FLOAT");
break;
case WAVE_FORMAT_EXTENSIBLE:
TRACE("WAVE_FORMAT_EXTENSIBLE");
break;
default:
TRACE("Unknown");
break;
}
TRACE(")\n");
TRACE("nChannels: %u\n", fmt->nChannels);
TRACE("nSamplesPerSec: %u\n", fmt->nSamplesPerSec);
TRACE("nAvgBytesPerSec: %u\n", fmt->nAvgBytesPerSec);
TRACE("nBlockAlign: %u\n", fmt->nBlockAlign);
TRACE("wBitsPerSample: %u\n", fmt->wBitsPerSample);
TRACE("cbSize: %u\n", fmt->cbSize);
if(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE){
WAVEFORMATEXTENSIBLE *fmtex = (void*)fmt;
TRACE("dwChannelMask: %08x\n", fmtex->dwChannelMask);
TRACE("Samples: %04x\n", fmtex->Samples.wReserved);
TRACE("SubFormat: %s\n", wine_dbgstr_guid(&fmtex->SubFormat));
}
}
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){
UINT i;
if(session->channel_vols)
session->channel_vols = HeapReAlloc(GetProcessHeap(), 0,
session->channel_vols, sizeof(float) * channels);
else
session->channel_vols = HeapAlloc(GetProcessHeap(), 0,
sizeof(float) * channels);
if(!session->channel_vols)
return;
for(i = session->channel_count; i < channels; ++i)
session->channel_vols[i] = 1.f;
session->channel_count = channels;
}
}
static AudioSession *create_session(const GUID *guid, IMMDevice *device,
UINT num_channels)
{
AudioSession *ret;
ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(AudioSession));
if(!ret)
return NULL;
memcpy(&ret->guid, guid, sizeof(GUID));
ret->device = device;
list_init(&ret->clients);
list_add_head(&g_sessions, &ret->entry);
session_init_vols(ret, num_channels);
ret->master_vol = 1.f;
return ret;
}
/* if channels == 0, then this will return or create a session with
* matching dataflow and GUID. otherwise, channels must also match */
static HRESULT get_audio_session(const GUID *sessionguid,
IMMDevice *device, UINT channels, AudioSession **out)
{
AudioSession *session;
if(!sessionguid || IsEqualGUID(sessionguid, &GUID_NULL)){
*out = create_session(&GUID_NULL, device, channels);
if(!*out)
return E_OUTOFMEMORY;
return S_OK;
}
*out = NULL;
LIST_FOR_EACH_ENTRY(session, &g_sessions, AudioSession, entry){
if(session->device == device &&
IsEqualGUID(sessionguid, &session->guid)){
session_init_vols(session, channels);
*out = session;
break;
}
}
if(!*out){
*out = create_session(sessionguid, device, channels);
if(!*out)
return E_OUTOFMEMORY;
}
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;
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 HRESULT WINAPI AudioClient_Initialize(IAudioClient3 *iface,
AUDCLNT_SHAREMODE mode, DWORD flags, REFERENCE_TIME duration,
REFERENCE_TIME period, const WAVEFORMATEX *fmt,
const GUID *sessionguid)
{
ACImpl *This = impl_from_IAudioClient3(iface);
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;
TRACE("(%p)->(%x, %x, %s, %s, %p, %s)\n", This, mode, flags,
wine_dbgstr_longlong(duration), wine_dbgstr_longlong(period), fmt, debugstr_guid(sessionguid));
if(!fmt)
return E_POINTER;
if(mode != AUDCLNT_SHAREMODE_SHARED && mode != AUDCLNT_SHAREMODE_EXCLUSIVE)
return E_INVALIDARG;
if(flags & ~(AUDCLNT_STREAMFLAGS_CROSSPROCESS |
AUDCLNT_STREAMFLAGS_LOOPBACK |
AUDCLNT_STREAMFLAGS_EVENTCALLBACK |
AUDCLNT_STREAMFLAGS_NOPERSIST |
AUDCLNT_STREAMFLAGS_RATEADJUST |
AUDCLNT_SESSIONFLAGS_EXPIREWHENUNOWNED |
AUDCLNT_SESSIONFLAGS_DISPLAY_HIDE |
AUDCLNT_SESSIONFLAGS_DISPLAY_HIDEWHENEXPIRED |
AUDCLNT_STREAMFLAGS_SRC_DEFAULT_QUALITY |
AUDCLNT_STREAMFLAGS_AUTOCONVERTPCM)){
FIXME("Unknown flags: %08x\n", flags);
return E_INVALIDARG;
}
if(mode == AUDCLNT_SHAREMODE_SHARED){
period = DefaultPeriod;
if( duration < 3 * period)
duration = 3 * period;
}else{
if(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE){
if(((WAVEFORMATEXTENSIBLE*)fmt)->dwChannelMask == 0 ||
((WAVEFORMATEXTENSIBLE*)fmt)->dwChannelMask & SPEAKER_RESERVED)
return AUDCLNT_E_UNSUPPORTED_FORMAT;
}
if(!period)
period = DefaultPeriod; /* not minimum */
if(period < MinimumPeriod || period > 5000000)
return AUDCLNT_E_INVALID_DEVICE_PERIOD;
if(duration > 20000000) /* the smaller the period, the lower this limit */
return AUDCLNT_E_BUFFER_SIZE_ERROR;
if(flags & AUDCLNT_STREAMFLAGS_EVENTCALLBACK){
if(duration != period)
return AUDCLNT_E_BUFDURATION_PERIOD_NOT_EQUAL;
FIXME("EXCLUSIVE mode with EVENTCALLBACK\n");
return AUDCLNT_E_DEVICE_IN_USE;
}else{
if( duration < 8 * period)
duration = 8 * period; /* may grow above 2s */
}
}
EnterCriticalSection(&g_sessions_lock);
EnterCriticalSection(&This->lock);
if(This->stream){
LeaveCriticalSection(&This->lock);
LeaveCriticalSection(&g_sessions_lock);
return AUDCLNT_E_ALREADY_INITIALIZED;
}
dump_fmt(fmt);
stream = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*This->stream));
if(!stream){
LeaveCriticalSection(&This->lock);
LeaveCriticalSection(&g_sessions_lock);
return E_OUTOFMEMORY;
}
hr = alsa_open_device(This->alsa_name, This->dataflow, &stream->pcm_handle, &stream->hw_params);
if(FAILED(hr)){
LeaveCriticalSection(&This->lock);
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;
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;
}
stream->local_buffer = HeapAlloc(GetProcessHeap(), 0,
stream->bufsize_frames * fmt->nBlockAlign);
if(!stream->local_buffer){
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;
}
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;
goto exit;
}
for(i = 0; i < This->channel_count; ++i)
This->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))
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);
HeapFree(GetProcessHeap(), 0, stream->local_buffer);
stream->local_buffer = NULL;
CoTaskMemFree(stream->fmt);
stream->fmt = NULL;
HeapFree(GetProcessHeap(), 0, stream);
HeapFree(GetProcessHeap(), 0, This->vols);
This->vols = NULL;
}else{
This->stream = stream;
}
LeaveCriticalSection(&This->lock);
LeaveCriticalSection(&g_sessions_lock);
return hr;
}
static HRESULT WINAPI AudioClient_GetBufferSize(IAudioClient3 *iface,
UINT32 *out)
{
ACImpl *This = impl_from_IAudioClient3(iface);
struct alsa_stream *stream = This->stream;
TRACE("(%p)->(%p)\n", This, out);
if(!out)
return E_POINTER;
EnterCriticalSection(&This->lock);
if(!This->stream){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_NOT_INITIALIZED;
}
*out = stream->bufsize_frames;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static HRESULT WINAPI AudioClient_GetStreamLatency(IAudioClient3 *iface,
REFERENCE_TIME *latency)
{
ACImpl *This = impl_from_IAudioClient3(iface);
struct alsa_stream *stream = This->stream;
TRACE("(%p)->(%p)\n", This, latency);
if(!latency)
return E_POINTER;
EnterCriticalSection(&This->lock);
if(!This->stream){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_NOT_INITIALIZED;
}
/* Hide some frames in the ALSA buffer. Allows us to return GetCurrentPadding=0
* yet have enough data left to play (as if it were in native's mixer). Add:
* + mmdevapi_period such that at the end of it, ALSA still has data;
* + EXTRA_SAFE (~4ms) to allow for late callback invocation / fluctuation;
* + alsa_period such that ALSA always has at least one period to play. */
if(This->dataflow == eRender)
*latency = MulDiv(stream->hidden_frames, 10000000, stream->fmt->nSamplesPerSec);
else
*latency = MulDiv(stream->alsa_period_frames, 10000000, stream->fmt->nSamplesPerSec)
+ stream->mmdev_period_rt;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static HRESULT WINAPI AudioClient_GetCurrentPadding(IAudioClient3 *iface,
UINT32 *out)
{
ACImpl *This = impl_from_IAudioClient3(iface);
struct alsa_stream *stream = This->stream;
TRACE("(%p)->(%p)\n", This, out);
if(!out)
return E_POINTER;
EnterCriticalSection(&This->lock);
if(!This->stream){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_NOT_INITIALIZED;
}
/* padding is solely updated at callback time in shared mode */
*out = stream->held_frames;
LeaveCriticalSection(&This->lock);
TRACE("pad: %u\n", *out);
return S_OK;
}
static HRESULT WINAPI AudioClient_IsFormatSupported(IAudioClient3 *iface,
AUDCLNT_SHAREMODE mode, const WAVEFORMATEX *fmt,
WAVEFORMATEX **out)
{
ACImpl *This = impl_from_IAudioClient3(iface);
struct is_format_supported_params params;
TRACE("(%p)->(%x, %p, %p)\n", This, mode, fmt, out);
if(fmt) dump_fmt(fmt);
params.alsa_name = This->alsa_name;
params.flow = This->dataflow;
params.share = mode;
params.fmt_in = fmt;
params.fmt_out = NULL;
if(out){
*out = NULL;
if(mode == AUDCLNT_SHAREMODE_SHARED)
params.fmt_out = CoTaskMemAlloc(sizeof(*params.fmt_out));
}
ALSA_CALL(is_format_supported, &params);
if(params.result == S_FALSE)
*out = &params.fmt_out->Format;
else
CoTaskMemFree(params.fmt_out);
return params.result;
}
static HRESULT WINAPI AudioClient_GetMixFormat(IAudioClient3 *iface,
WAVEFORMATEX **pwfx)
{
ACImpl *This = impl_from_IAudioClient3(iface);
struct get_mix_format_params params;
TRACE("(%p)->(%p)\n", This, pwfx);
if(!pwfx)
return E_POINTER;
*pwfx = NULL;
params.alsa_name = This->alsa_name;
params.flow = This->dataflow;
params.fmt = CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
if(!params.fmt)
return E_OUTOFMEMORY;
ALSA_CALL(get_mix_format, &params);
if(SUCCEEDED(params.result)){
*pwfx = &params.fmt->Format;
dump_fmt(*pwfx);
} else
CoTaskMemFree(params.fmt);
return params.result;
}
static HRESULT WINAPI AudioClient_GetDevicePeriod(IAudioClient3 *iface,
REFERENCE_TIME *defperiod, REFERENCE_TIME *minperiod)
{
ACImpl *This = impl_from_IAudioClient3(iface);
TRACE("(%p)->(%p, %p)\n", This, defperiod, minperiod);
if(!defperiod && !minperiod)
return E_POINTER;
if(defperiod)
*defperiod = DefaultPeriod;
if(minperiod)
*minperiod = DefaultPeriod;
return S_OK;
}
static BYTE *remap_channels(struct alsa_stream *stream, BYTE *buf, snd_pcm_uframes_t frames)
{
snd_pcm_uframes_t i;
UINT c;
UINT bytes_per_sample = stream->fmt->wBitsPerSample / 8;
if(!stream->need_remapping)
return buf;
if(!stream->remapping_buf){
stream->remapping_buf = HeapAlloc(GetProcessHeap(), 0,
bytes_per_sample * stream->alsa_channels * frames);
stream->remapping_buf_frames = frames;
}else if(stream->remapping_buf_frames < frames){
stream->remapping_buf = HeapReAlloc(GetProcessHeap(), 0, stream->remapping_buf,
bytes_per_sample * stream->alsa_channels * frames);
stream->remapping_buf_frames = frames;
}
snd_pcm_format_set_silence(stream->alsa_format, stream->remapping_buf,
frames * stream->alsa_channels);
switch(stream->fmt->wBitsPerSample){
case 8: {
UINT8 *tgt_buf, *src_buf;
tgt_buf = stream->remapping_buf;
src_buf = buf;
for(i = 0; i < frames; ++i){
for(c = 0; c < stream->fmt->nChannels; ++c)
tgt_buf[stream->alsa_channel_map[c]] = src_buf[c];
tgt_buf += stream->alsa_channels;
src_buf += stream->fmt->nChannels;
}
break;
}
case 16: {
UINT16 *tgt_buf, *src_buf;
tgt_buf = (UINT16*)stream->remapping_buf;
src_buf = (UINT16*)buf;
for(i = 0; i < frames; ++i){
for(c = 0; c < stream->fmt->nChannels; ++c)
tgt_buf[stream->alsa_channel_map[c]] = src_buf[c];
tgt_buf += stream->alsa_channels;
src_buf += stream->fmt->nChannels;
}
}
break;
case 32: {
UINT32 *tgt_buf, *src_buf;
tgt_buf = (UINT32*)stream->remapping_buf;
src_buf = (UINT32*)buf;
for(i = 0; i < frames; ++i){
for(c = 0; c < stream->fmt->nChannels; ++c)
tgt_buf[stream->alsa_channel_map[c]] = src_buf[c];
tgt_buf += stream->alsa_channels;
src_buf += stream->fmt->nChannels;
}
}
break;
default: {
BYTE *tgt_buf, *src_buf;
tgt_buf = stream->remapping_buf;
src_buf = buf;
for(i = 0; i < frames; ++i){
for(c = 0; c < stream->fmt->nChannels; ++c)
memcpy(&tgt_buf[stream->alsa_channel_map[c] * bytes_per_sample],
&src_buf[c * bytes_per_sample], bytes_per_sample);
tgt_buf += stream->alsa_channels * bytes_per_sample;
src_buf += stream->fmt->nChannels * bytes_per_sample;
}
}
break;
}
return stream->remapping_buf;
}
static void adjust_buffer_volume(const ACImpl *This, BYTE *buf, snd_pcm_uframes_t frames, BOOL mute)
{
struct alsa_stream *stream = This->stream;
float vol[ARRAY_SIZE(stream->alsa_channel_map)];
BOOL adjust = FALSE;
UINT32 i, channels;
BYTE *end;
if (stream->vol_adjusted_frames >= frames)
return;
channels = stream->fmt->nChannels;
if (mute)
{
int err = snd_pcm_format_set_silence(stream->alsa_format, buf, frames * channels);
if (err < 0)
WARN("Setting buffer to silence failed: %d (%s)\n", err, snd_strerror(err));
return;
}
/* Adjust the buffer based on the volume for each channel */
for (i = 0; i < channels; i++)
vol[i] = This->vols[i] * This->session->master_vol;
for (i = 0; i < min(channels, This->session->channel_count); i++)
{
vol[i] *= This->session->channel_vols[i];
adjust |= vol[i] != 1.0f;
}
while (i < channels) adjust |= vol[i++] != 1.0f;
if (!adjust) return;
/* Skip the frames we've already adjusted before */
end = buf + frames * stream->fmt->nBlockAlign;
buf += stream->vol_adjusted_frames * stream->fmt->nBlockAlign;
switch (stream->alsa_format)
{
#ifndef WORDS_BIGENDIAN
#define PROCESS_BUFFER(type) do \
{ \
type *p = (type*)buf; \
do \
{ \
for (i = 0; i < channels; i++) \
p[i] = p[i] * vol[i]; \
p += i; \
} while ((BYTE*)p != end); \
} while (0)
case SND_PCM_FORMAT_S16_LE:
PROCESS_BUFFER(INT16);
break;
case SND_PCM_FORMAT_S32_LE:
PROCESS_BUFFER(INT32);
break;
case SND_PCM_FORMAT_FLOAT_LE:
PROCESS_BUFFER(float);
break;
case SND_PCM_FORMAT_FLOAT64_LE:
PROCESS_BUFFER(double);
break;
#undef PROCESS_BUFFER
case SND_PCM_FORMAT_S20_3LE:
case SND_PCM_FORMAT_S24_3LE:
{
/* Do it 12 bytes at a time until it is no longer possible */
UINT32 *q = (UINT32*)buf, mask = ~0xff;
BYTE *p;
/* After we adjust the volume, we need to mask out low bits */
if (stream->alsa_format == SND_PCM_FORMAT_S20_3LE)
mask = ~0x0fff;
i = 0;
while (end - (BYTE*)q >= 12)
{
UINT32 v[4], k;
v[0] = q[0] << 8;
v[1] = q[1] << 16 | (q[0] >> 16 & ~0xff);
v[2] = q[2] << 24 | (q[1] >> 8 & ~0xff);
v[3] = q[2] & ~0xff;
for (k = 0; k < 4; k++)
{
v[k] = (INT32)((INT32)v[k] * vol[i]);
v[k] &= mask;
if (++i == channels) i = 0;
}
*q++ = v[0] >> 8 | v[1] << 16;
*q++ = v[1] >> 16 | v[2] << 8;
*q++ = v[2] >> 24 | v[3];
}
p = (BYTE*)q;
while (p != end)
{
UINT32 v = (INT32)((INT32)(p[0] << 8 | p[1] << 16 | p[2] << 24) * vol[i]);
v &= mask;
*p++ = v >> 8 & 0xff;
*p++ = v >> 16 & 0xff;
*p++ = v >> 24;
if (++i == channels) i = 0;
}
break;
}
#endif
case SND_PCM_FORMAT_U8:
{
UINT8 *p = (UINT8*)buf;
do
{
for (i = 0; i < channels; i++)
p[i] = (int)((p[i] - 128) * vol[i]) + 128;
p += i;
} while ((BYTE*)p != end);
break;
}
default:
TRACE("Unhandled format %i, not adjusting volume.\n", stream->alsa_format);
break;
}
}
static snd_pcm_sframes_t alsa_write_best_effort(ACImpl *This, BYTE *buf,
snd_pcm_uframes_t frames, BOOL mute)
{
struct alsa_stream *stream = This->stream;
snd_pcm_sframes_t written;
adjust_buffer_volume(This, buf, frames, mute);
/* Mark the frames we've already adjusted */
if (stream->vol_adjusted_frames < frames)
stream->vol_adjusted_frames = frames;
buf = remap_channels(stream, buf, frames);
written = snd_pcm_writei(stream->pcm_handle, buf, frames);
if(written < 0){
int ret;
if(written == -EAGAIN)
/* buffer full */
return 0;
WARN("writei failed, recovering: %ld (%s)\n", written,
snd_strerror(written));
ret = snd_pcm_recover(stream->pcm_handle, written, 0);
if(ret < 0){
WARN("Could not recover: %d (%s)\n", ret, snd_strerror(ret));
return ret;
}
written = snd_pcm_writei(stream->pcm_handle, buf, frames);
}
if (written > 0)
stream->vol_adjusted_frames -= written;
return written;
}
static snd_pcm_sframes_t alsa_write_buffer_wrap(ACImpl *This, BYTE *buf,
snd_pcm_uframes_t buflen, snd_pcm_uframes_t offs,
snd_pcm_uframes_t to_write)
{
struct alsa_stream *stream = This->stream;
snd_pcm_sframes_t ret = 0;
while(to_write){
snd_pcm_uframes_t chunk;
snd_pcm_sframes_t tmp;
if(offs + to_write > buflen)
chunk = buflen - offs;
else
chunk = to_write;
tmp = alsa_write_best_effort(This, buf + offs * stream->fmt->nBlockAlign, chunk, This->session->mute);
if(tmp < 0)
return ret;
if(!tmp)
break;
ret += tmp;
to_write -= tmp;
offs += tmp;
offs %= buflen;
}
return ret;
}
static UINT buf_ptr_diff(UINT left, UINT right, UINT bufsize)
{
if(left <= right)
return right - left;
return bufsize - (left - right);
}
static UINT data_not_in_alsa(ACImpl *This)
{
struct alsa_stream *stream = This->stream;
UINT32 diff;
diff = buf_ptr_diff(stream->lcl_offs_frames, stream->wri_offs_frames, stream->bufsize_frames);
if(diff)
return diff;
return stream->held_frames - stream->data_in_alsa_frames;
}
/* Here's the buffer setup:
*
* vvvvvvvv sent to HW already
* vvvvvvvv in ALSA buffer but rewindable
* [dddddddddddddddd] ALSA buffer
* [dddddddddddddddd--------] mmdevapi buffer
* ^^^^^^^^ data_in_alsa_frames
* ^^^^^^^^^^^^^^^^ held_frames
* ^ lcl_offs_frames
* ^ wri_offs_frames
*
* GetCurrentPadding is held_frames
*
* During period callback, we decrement held_frames, fill ALSA buffer, and move
* lcl_offs forward
*
* During Stop, we rewind the ALSA buffer
*/
static void alsa_write_data(ACImpl *This)
{
struct alsa_stream *stream = This->stream;
snd_pcm_sframes_t written;
snd_pcm_uframes_t avail, max_copy_frames, data_frames_played;
int err;
/* this call seems to be required to get an accurate snd_pcm_state() */
avail = snd_pcm_avail_update(stream->pcm_handle);
if(snd_pcm_state(stream->pcm_handle) == SND_PCM_STATE_XRUN){
TRACE("XRun state, recovering\n");
avail = stream->alsa_bufsize_frames;
if((err = snd_pcm_recover(stream->pcm_handle, -EPIPE, 1)) < 0)
WARN("snd_pcm_recover failed: %d (%s)\n", err, snd_strerror(err));
if((err = snd_pcm_reset(stream->pcm_handle)) < 0)
WARN("snd_pcm_reset failed: %d (%s)\n", err, snd_strerror(err));
if((err = snd_pcm_prepare(stream->pcm_handle)) < 0)
WARN("snd_pcm_prepare failed: %d (%s)\n", err, snd_strerror(err));
}
TRACE("avail: %ld\n", avail);
/* Add a lead-in when starting with too few frames to ensure
* continuous rendering. Additional benefit: Force ALSA to start. */
if(stream->data_in_alsa_frames == 0 && stream->held_frames < stream->alsa_period_frames)
{
alsa_write_best_effort(This, stream->silence_buf,
stream->alsa_period_frames - stream->held_frames, FALSE);
stream->vol_adjusted_frames = 0;
}
if(stream->started)
max_copy_frames = data_not_in_alsa(This);
else
max_copy_frames = 0;
data_frames_played = min(stream->data_in_alsa_frames, avail);
stream->data_in_alsa_frames -= data_frames_played;
if(stream->held_frames > data_frames_played){
if(stream->started)
stream->held_frames -= data_frames_played;
}else
stream->held_frames = 0;
while(avail && max_copy_frames){
snd_pcm_uframes_t to_write;
to_write = min(avail, max_copy_frames);
written = alsa_write_buffer_wrap(This, stream->local_buffer,
stream->bufsize_frames, stream->lcl_offs_frames, to_write);
if(written <= 0)
break;
avail -= written;
stream->lcl_offs_frames += written;
stream->lcl_offs_frames %= stream->bufsize_frames;
stream->data_in_alsa_frames += written;
max_copy_frames -= written;
}
if(stream->event)
SetEvent(stream->event);
}
static void alsa_read_data(ACImpl *This)
{
struct alsa_stream *stream = This->stream;
snd_pcm_sframes_t nread;
UINT32 pos = stream->wri_offs_frames, limit = stream->held_frames;
if(!stream->started)
goto exit;
/* FIXME: Detect overrun and signal DATA_DISCONTINUITY
* How to count overrun frames and report them as position increase? */
limit = stream->bufsize_frames - max(limit, pos);
nread = snd_pcm_readi(stream->pcm_handle,
stream->local_buffer + pos * stream->fmt->nBlockAlign, limit);
TRACE("read %ld from %u limit %u\n", nread, pos, limit);
if(nread < 0){
int ret;
if(nread == -EAGAIN) /* no data yet */
return;
WARN("read failed, recovering: %ld (%s)\n", nread, snd_strerror(nread));
ret = snd_pcm_recover(stream->pcm_handle, nread, 0);
if(ret < 0){
WARN("Recover failed: %d (%s)\n", ret, snd_strerror(ret));
return;
}
nread = snd_pcm_readi(stream->pcm_handle,
stream->local_buffer + pos * stream->fmt->nBlockAlign, limit);
if(nread < 0){
WARN("read failed: %ld (%s)\n", nread, snd_strerror(nread));
return;
}
}
if(This->session->mute){
int err;
if((err = snd_pcm_format_set_silence(stream->alsa_format,
stream->local_buffer + pos * stream->fmt->nBlockAlign,
nread)) < 0)
WARN("Setting buffer to silence failed: %d (%s)\n", err,
snd_strerror(err));
}
stream->wri_offs_frames += nread;
stream->wri_offs_frames %= stream->bufsize_frames;
stream->held_frames += nread;
exit:
if(stream->event)
SetEvent(stream->event);
}
static void CALLBACK alsa_push_buffer_data(void *user, BOOLEAN timer)
{
ACImpl *This = user;
struct alsa_stream *stream = This->stream;
EnterCriticalSection(&This->lock);
QueryPerformanceCounter(&stream->last_period_time);
if(This->dataflow == eRender)
alsa_write_data(This);
else if(This->dataflow == eCapture)
alsa_read_data(This);
LeaveCriticalSection(&This->lock);
}
static snd_pcm_uframes_t interp_elapsed_frames(struct alsa_stream *stream)
{
LARGE_INTEGER time_freq, current_time, time_diff;
QueryPerformanceFrequency(&time_freq);
QueryPerformanceCounter(&current_time);
time_diff.QuadPart = current_time.QuadPart - stream->last_period_time.QuadPart;
return MulDiv(time_diff.QuadPart, stream->fmt->nSamplesPerSec, time_freq.QuadPart);
}
static int alsa_rewind_best_effort(ACImpl *This)
{
struct alsa_stream *stream = This->stream;
snd_pcm_uframes_t len, leave;
/* we can't use snd_pcm_rewindable, some PCM devices crash. so follow
* PulseAudio's example and rewind as much data as we believe is in the
* buffer, minus 1.33ms for safety. */
/* amount of data to leave in ALSA buffer */
leave = interp_elapsed_frames(stream) + stream->safe_rewind_frames;
if(stream->held_frames < leave)
stream->held_frames = 0;
else
stream->held_frames -= leave;
if(stream->data_in_alsa_frames < leave)
len = 0;
else
len = stream->data_in_alsa_frames - leave;
TRACE("rewinding %lu frames, now held %u\n", len, stream->held_frames);
if(len)
/* snd_pcm_rewind return value is often broken, assume it succeeded */
snd_pcm_rewind(stream->pcm_handle, len);
stream->data_in_alsa_frames = 0;
return len;
}
static HRESULT WINAPI AudioClient_Start(IAudioClient3 *iface)
{
ACImpl *This = impl_from_IAudioClient3(iface);
struct alsa_stream *stream = This->stream;
TRACE("(%p)\n", This);
EnterCriticalSection(&This->lock);
if(!This->stream){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_NOT_INITIALIZED;
}
if((stream->flags & AUDCLNT_STREAMFLAGS_EVENTCALLBACK) && !stream->event){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_EVENTHANDLE_NOT_SET;
}
if(stream->started){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_NOT_STOPPED;
}
if(This->dataflow == eCapture){
/* dump any data that might be leftover in the ALSA capture buffer */
snd_pcm_readi(stream->pcm_handle, stream->local_buffer,
stream->bufsize_frames);
}else{
snd_pcm_sframes_t avail, written;
snd_pcm_uframes_t offs;
avail = snd_pcm_avail_update(stream->pcm_handle);
avail = min(avail, stream->held_frames);
if(stream->wri_offs_frames < stream->held_frames)
offs = stream->bufsize_frames - stream->held_frames + stream->wri_offs_frames;
else
offs = stream->wri_offs_frames - stream->held_frames;
/* fill it with data */
written = alsa_write_buffer_wrap(This, stream->local_buffer,
stream->bufsize_frames, offs, avail);
if(written > 0){
stream->lcl_offs_frames = (offs + written) % stream->bufsize_frames;
stream->data_in_alsa_frames = written;
}else{
stream->lcl_offs_frames = offs;
stream->data_in_alsa_frames = 0;
}
}
if(!This->timer){
if(!CreateTimerQueueTimer(&This->timer, g_timer_q, alsa_push_buffer_data,
This, 0, stream->mmdev_period_rt / 10000, WT_EXECUTEINTIMERTHREAD)){
LeaveCriticalSection(&This->lock);
WARN("Unable to create timer: %u\n", GetLastError());
return E_OUTOFMEMORY;
}
}
stream->started = TRUE;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static HRESULT WINAPI AudioClient_Stop(IAudioClient3 *iface)
{
ACImpl *This = impl_from_IAudioClient3(iface);
struct alsa_stream *stream = This->stream;
TRACE("(%p)\n", This);
EnterCriticalSection(&This->lock);
if(!This->stream){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_NOT_INITIALIZED;
}
if(!stream->started){
LeaveCriticalSection(&This->lock);
return S_FALSE;
}
if(This->dataflow == eRender)
alsa_rewind_best_effort(This);
stream->started = FALSE;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static HRESULT WINAPI AudioClient_Reset(IAudioClient3 *iface)
{
ACImpl *This = impl_from_IAudioClient3(iface);
struct alsa_stream *stream = This->stream;
TRACE("(%p)\n", This);
EnterCriticalSection(&This->lock);
if(!This->stream){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_NOT_INITIALIZED;
}
if(stream->started){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_NOT_STOPPED;
}
if(stream->getbuf_last){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_BUFFER_OPERATION_PENDING;
}
if(snd_pcm_drop(stream->pcm_handle) < 0)
WARN("snd_pcm_drop failed\n");
if(snd_pcm_reset(stream->pcm_handle) < 0)
WARN("snd_pcm_reset failed\n");
if(snd_pcm_prepare(stream->pcm_handle) < 0)
WARN("snd_pcm_prepare failed\n");
if(This->dataflow == eRender){
stream->written_frames = 0;
stream->last_pos_frames = 0;
}else{
stream->written_frames += stream->held_frames;
}
stream->held_frames = 0;
stream->lcl_offs_frames = 0;
stream->wri_offs_frames = 0;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static HRESULT WINAPI AudioClient_SetEventHandle(IAudioClient3 *iface,
HANDLE event)
{
ACImpl *This = impl_from_IAudioClient3(iface);
struct alsa_stream *stream = This->stream;
TRACE("(%p)->(%p)\n", This, event);
if(!event)
return E_INVALIDARG;
EnterCriticalSection(&This->lock);
if(!This->stream){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_NOT_INITIALIZED;
}
if(!(stream->flags & AUDCLNT_STREAMFLAGS_EVENTCALLBACK)){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_EVENTHANDLE_NOT_EXPECTED;
}
if (stream->event){
LeaveCriticalSection(&This->lock);
FIXME("called twice\n");
return HRESULT_FROM_WIN32(ERROR_INVALID_NAME);
}
stream->event = event;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static HRESULT WINAPI AudioClient_GetService(IAudioClient3 *iface, REFIID riid,
void **ppv)
{
ACImpl *This = impl_from_IAudioClient3(iface);
TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppv);
if(!ppv)
return E_POINTER;
*ppv = NULL;
EnterCriticalSection(&This->lock);
if(!This->stream){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_NOT_INITIALIZED;
}
if(IsEqualIID(riid, &IID_IAudioRenderClient)){
if(This->dataflow != eRender){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_WRONG_ENDPOINT_TYPE;
}
IAudioRenderClient_AddRef(&This->IAudioRenderClient_iface);
*ppv = &This->IAudioRenderClient_iface;
}else if(IsEqualIID(riid, &IID_IAudioCaptureClient)){
if(This->dataflow != eCapture){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_WRONG_ENDPOINT_TYPE;
}
IAudioCaptureClient_AddRef(&This->IAudioCaptureClient_iface);
*ppv = &This->IAudioCaptureClient_iface;
}else if(IsEqualIID(riid, &IID_IAudioClock)){
IAudioClock_AddRef(&This->IAudioClock_iface);
*ppv = &This->IAudioClock_iface;
}else if(IsEqualIID(riid, &IID_IAudioStreamVolume)){
IAudioStreamVolume_AddRef(&This->IAudioStreamVolume_iface);
*ppv = &This->IAudioStreamVolume_iface;
}else if(IsEqualIID(riid, &IID_IAudioSessionControl)){
if(!This->session_wrapper){
This->session_wrapper = AudioSessionWrapper_Create(This);
if(!This->session_wrapper){
LeaveCriticalSection(&This->lock);
return E_OUTOFMEMORY;
}
}else
IAudioSessionControl2_AddRef(&This->session_wrapper->IAudioSessionControl2_iface);
*ppv = &This->session_wrapper->IAudioSessionControl2_iface;
}else if(IsEqualIID(riid, &IID_IChannelAudioVolume)){
if(!This->session_wrapper){
This->session_wrapper = AudioSessionWrapper_Create(This);
if(!This->session_wrapper){
LeaveCriticalSection(&This->lock);
return E_OUTOFMEMORY;
}
}else
IChannelAudioVolume_AddRef(&This->session_wrapper->IChannelAudioVolume_iface);
*ppv = &This->session_wrapper->IChannelAudioVolume_iface;
}else if(IsEqualIID(riid, &IID_ISimpleAudioVolume)){
if(!This->session_wrapper){
This->session_wrapper = AudioSessionWrapper_Create(This);
if(!This->session_wrapper){
LeaveCriticalSection(&This->lock);
return E_OUTOFMEMORY;
}
}else
ISimpleAudioVolume_AddRef(&This->session_wrapper->ISimpleAudioVolume_iface);
*ppv = &This->session_wrapper->ISimpleAudioVolume_iface;
}
if(*ppv){
LeaveCriticalSection(&This->lock);
return S_OK;
}
LeaveCriticalSection(&This->lock);
FIXME("stub %s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
static HRESULT WINAPI AudioClient_IsOffloadCapable(IAudioClient3 *iface,
AUDIO_STREAM_CATEGORY category, BOOL *offload_capable)
{
ACImpl *This = impl_from_IAudioClient3(iface);
TRACE("(%p)->(0x%x, %p)\n", This, category, offload_capable);
if(!offload_capable)
return E_INVALIDARG;
*offload_capable = FALSE;
return S_OK;
}
static HRESULT WINAPI AudioClient_SetClientProperties(IAudioClient3 *iface,
const AudioClientProperties *prop)
{
ACImpl *This = impl_from_IAudioClient3(iface);
const Win8AudioClientProperties *legacy_prop = (const Win8AudioClientProperties *)prop;
TRACE("(%p)->(%p)\n", This, prop);
if(!legacy_prop)
return E_POINTER;
if(legacy_prop->cbSize == sizeof(AudioClientProperties)){
TRACE("{ bIsOffload: %u, eCategory: 0x%x, Options: 0x%x }\n",
legacy_prop->bIsOffload,
legacy_prop->eCategory,
prop->Options);
}else if(legacy_prop->cbSize == sizeof(Win8AudioClientProperties)){
TRACE("{ bIsOffload: %u, eCategory: 0x%x }\n",
legacy_prop->bIsOffload,
legacy_prop->eCategory);
}else{
WARN("Unsupported Size = %d\n", legacy_prop->cbSize);
return E_INVALIDARG;
}
if(legacy_prop->bIsOffload)
return AUDCLNT_E_ENDPOINT_OFFLOAD_NOT_CAPABLE;
return S_OK;
}
static HRESULT WINAPI AudioClient_GetBufferSizeLimits(IAudioClient3 *iface,
const WAVEFORMATEX *format, BOOL event_driven, REFERENCE_TIME *min_duration,
REFERENCE_TIME *max_duration)
{
ACImpl *This = impl_from_IAudioClient3(iface);
FIXME("(%p)->(%p, %u, %p, %p)\n", This, format, event_driven, min_duration, max_duration);
return E_NOTIMPL;
}
static HRESULT WINAPI AudioClient_GetSharedModeEnginePeriod(IAudioClient3 *iface,
const WAVEFORMATEX *format, UINT32 *default_period_frames, UINT32 *unit_period_frames,
UINT32 *min_period_frames, UINT32 *max_period_frames)
{
ACImpl *This = impl_from_IAudioClient3(iface);
FIXME("(%p)->(%p, %p, %p, %p, %p)\n", This, format, default_period_frames, unit_period_frames,
min_period_frames, max_period_frames);
return E_NOTIMPL;
}
static HRESULT WINAPI AudioClient_GetCurrentSharedModeEnginePeriod(IAudioClient3 *iface,
WAVEFORMATEX **cur_format, UINT32 *cur_period_frames)
{
ACImpl *This = impl_from_IAudioClient3(iface);
FIXME("(%p)->(%p, %p)\n", This, cur_format, cur_period_frames);
return E_NOTIMPL;
}
static HRESULT WINAPI AudioClient_InitializeSharedAudioStream(IAudioClient3 *iface,
DWORD flags, UINT32 period_frames, const WAVEFORMATEX *format,
const GUID *session_guid)
{
ACImpl *This = impl_from_IAudioClient3(iface);
FIXME("(%p)->(0x%x, %u, %p, %s)\n", This, flags, period_frames, format, debugstr_guid(session_guid));
return E_NOTIMPL;
}
static const IAudioClient3Vtbl AudioClient3_Vtbl =
{
AudioClient_QueryInterface,
AudioClient_AddRef,
AudioClient_Release,
AudioClient_Initialize,
AudioClient_GetBufferSize,
AudioClient_GetStreamLatency,
AudioClient_GetCurrentPadding,
AudioClient_IsFormatSupported,
AudioClient_GetMixFormat,
AudioClient_GetDevicePeriod,
AudioClient_Start,
AudioClient_Stop,
AudioClient_Reset,
AudioClient_SetEventHandle,
AudioClient_GetService,
AudioClient_IsOffloadCapable,
AudioClient_SetClientProperties,
AudioClient_GetBufferSizeLimits,
AudioClient_GetSharedModeEnginePeriod,
AudioClient_GetCurrentSharedModeEnginePeriod,
AudioClient_InitializeSharedAudioStream,
};
static HRESULT WINAPI AudioRenderClient_QueryInterface(
IAudioRenderClient *iface, REFIID riid, void **ppv)
{
ACImpl *This = impl_from_IAudioRenderClient(iface);
TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
if(!ppv)
return E_POINTER;
*ppv = NULL;
if(IsEqualIID(riid, &IID_IUnknown) ||
IsEqualIID(riid, &IID_IAudioRenderClient))
*ppv = iface;
else if(IsEqualIID(riid, &IID_IMarshal))
return IUnknown_QueryInterface(This->pUnkFTMarshal, riid, ppv);
if(*ppv){
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
WARN("Unknown interface %s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
static ULONG WINAPI AudioRenderClient_AddRef(IAudioRenderClient *iface)
{
ACImpl *This = impl_from_IAudioRenderClient(iface);
return AudioClient_AddRef(&This->IAudioClient3_iface);
}
static ULONG WINAPI AudioRenderClient_Release(IAudioRenderClient *iface)
{
ACImpl *This = impl_from_IAudioRenderClient(iface);
return AudioClient_Release(&This->IAudioClient3_iface);
}
static HRESULT WINAPI AudioRenderClient_GetBuffer(IAudioRenderClient *iface,
UINT32 frames, BYTE **data)
{
ACImpl *This = impl_from_IAudioRenderClient(iface);
struct alsa_stream *stream = This->stream;
UINT32 write_pos;
TRACE("(%p)->(%u, %p)\n", This, frames, data);
if(!data)
return E_POINTER;
*data = NULL;
EnterCriticalSection(&This->lock);
if(stream->getbuf_last){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_OUT_OF_ORDER;
}
if(!frames){
LeaveCriticalSection(&This->lock);
return S_OK;
}
/* held_frames == GetCurrentPadding_nolock(); */
if(stream->held_frames + frames > stream->bufsize_frames){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_BUFFER_TOO_LARGE;
}
write_pos = stream->wri_offs_frames;
if(write_pos + frames > stream->bufsize_frames){
if(stream->tmp_buffer_frames < frames){
HeapFree(GetProcessHeap(), 0, stream->tmp_buffer);
stream->tmp_buffer = HeapAlloc(GetProcessHeap(), 0,
frames * stream->fmt->nBlockAlign);
if(!stream->tmp_buffer){
LeaveCriticalSection(&This->lock);
return E_OUTOFMEMORY;
}
stream->tmp_buffer_frames = frames;
}
*data = stream->tmp_buffer;
stream->getbuf_last = -frames;
}else{
*data = stream->local_buffer + write_pos * stream->fmt->nBlockAlign;
stream->getbuf_last = frames;
}
silence_buffer(stream, *data, frames);
LeaveCriticalSection(&This->lock);
return S_OK;
}
static void alsa_wrap_buffer(struct alsa_stream *stream, BYTE *buffer, UINT32 written_frames)
{
snd_pcm_uframes_t write_offs_frames = stream->wri_offs_frames;
UINT32 write_offs_bytes = write_offs_frames * stream->fmt->nBlockAlign;
snd_pcm_uframes_t chunk_frames = stream->bufsize_frames - write_offs_frames;
UINT32 chunk_bytes = chunk_frames * stream->fmt->nBlockAlign;
UINT32 written_bytes = written_frames * stream->fmt->nBlockAlign;
if(written_bytes <= chunk_bytes){
memcpy(stream->local_buffer + write_offs_bytes, buffer, written_bytes);
}else{
memcpy(stream->local_buffer + write_offs_bytes, buffer, chunk_bytes);
memcpy(stream->local_buffer, buffer + chunk_bytes,
written_bytes - chunk_bytes);
}
}
static HRESULT WINAPI AudioRenderClient_ReleaseBuffer(
IAudioRenderClient *iface, UINT32 written_frames, DWORD flags)
{
ACImpl *This = impl_from_IAudioRenderClient(iface);
struct alsa_stream *stream = This->stream;
BYTE *buffer;
TRACE("(%p)->(%u, %x)\n", This, written_frames, flags);
EnterCriticalSection(&This->lock);
if(!written_frames){
stream->getbuf_last = 0;
LeaveCriticalSection(&This->lock);
return S_OK;
}
if(!stream->getbuf_last){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_OUT_OF_ORDER;
}
if(written_frames > (stream->getbuf_last >= 0 ? stream->getbuf_last : -stream->getbuf_last)){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_INVALID_SIZE;
}
if(stream->getbuf_last >= 0)
buffer = stream->local_buffer + stream->wri_offs_frames * stream->fmt->nBlockAlign;
else
buffer = stream->tmp_buffer;
if(flags & AUDCLNT_BUFFERFLAGS_SILENT)
silence_buffer(stream, buffer, written_frames);
if(stream->getbuf_last < 0)
alsa_wrap_buffer(stream, buffer, written_frames);
stream->wri_offs_frames += written_frames;
stream->wri_offs_frames %= stream->bufsize_frames;
stream->held_frames += written_frames;
stream->written_frames += written_frames;
stream->getbuf_last = 0;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static const IAudioRenderClientVtbl AudioRenderClient_Vtbl = {
AudioRenderClient_QueryInterface,
AudioRenderClient_AddRef,
AudioRenderClient_Release,
AudioRenderClient_GetBuffer,
AudioRenderClient_ReleaseBuffer
};
static HRESULT WINAPI AudioCaptureClient_QueryInterface(
IAudioCaptureClient *iface, REFIID riid, void **ppv)
{
ACImpl *This = impl_from_IAudioCaptureClient(iface);
TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
if(!ppv)
return E_POINTER;
*ppv = NULL;
if(IsEqualIID(riid, &IID_IUnknown) ||
IsEqualIID(riid, &IID_IAudioCaptureClient))
*ppv = iface;
else if(IsEqualIID(riid, &IID_IMarshal))
return IUnknown_QueryInterface(This->pUnkFTMarshal, riid, ppv);
if(*ppv){
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
WARN("Unknown interface %s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
static ULONG WINAPI AudioCaptureClient_AddRef(IAudioCaptureClient *iface)
{
ACImpl *This = impl_from_IAudioCaptureClient(iface);
return IAudioClient3_AddRef(&This->IAudioClient3_iface);
}
static ULONG WINAPI AudioCaptureClient_Release(IAudioCaptureClient *iface)
{
ACImpl *This = impl_from_IAudioCaptureClient(iface);
return IAudioClient3_Release(&This->IAudioClient3_iface);
}
static HRESULT WINAPI AudioCaptureClient_GetBuffer(IAudioCaptureClient *iface,
BYTE **data, UINT32 *frames, DWORD *flags, UINT64 *devpos,
UINT64 *qpcpos)
{
ACImpl *This = impl_from_IAudioCaptureClient(iface);
struct alsa_stream *stream = This->stream;
TRACE("(%p)->(%p, %p, %p, %p, %p)\n", This, data, frames, flags,
devpos, qpcpos);
if(!data)
return E_POINTER;
*data = NULL;
if(!frames || !flags)
return E_POINTER;
EnterCriticalSection(&This->lock);
if(stream->getbuf_last){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_OUT_OF_ORDER;
}
/* hr = GetNextPacketSize(iface, frames); */
if(stream->held_frames < stream->mmdev_period_frames){
*frames = 0;
LeaveCriticalSection(&This->lock);
return AUDCLNT_S_BUFFER_EMPTY;
}
*frames = stream->mmdev_period_frames;
if(stream->lcl_offs_frames + *frames > stream->bufsize_frames){
UINT32 chunk_bytes, offs_bytes, frames_bytes;
if(stream->tmp_buffer_frames < *frames){
HeapFree(GetProcessHeap(), 0, stream->tmp_buffer);
stream->tmp_buffer = HeapAlloc(GetProcessHeap(), 0,
*frames * stream->fmt->nBlockAlign);
if(!stream->tmp_buffer){
LeaveCriticalSection(&This->lock);
return E_OUTOFMEMORY;
}
stream->tmp_buffer_frames = *frames;
}
*data = stream->tmp_buffer;
chunk_bytes = (stream->bufsize_frames - stream->lcl_offs_frames) *
stream->fmt->nBlockAlign;
offs_bytes = stream->lcl_offs_frames * stream->fmt->nBlockAlign;
frames_bytes = *frames * stream->fmt->nBlockAlign;
memcpy(stream->tmp_buffer, stream->local_buffer + offs_bytes, chunk_bytes);
memcpy(stream->tmp_buffer + chunk_bytes, stream->local_buffer,
frames_bytes - chunk_bytes);
}else
*data = stream->local_buffer +
stream->lcl_offs_frames * stream->fmt->nBlockAlign;
stream->getbuf_last = *frames;
*flags = 0;
if(devpos)
*devpos = stream->written_frames;
if(qpcpos){ /* fixme: qpc of recording time */
LARGE_INTEGER stamp, freq;
QueryPerformanceCounter(&stamp);
QueryPerformanceFrequency(&freq);
*qpcpos = (stamp.QuadPart * (INT64)10000000) / freq.QuadPart;
}
LeaveCriticalSection(&This->lock);
return *frames ? S_OK : AUDCLNT_S_BUFFER_EMPTY;
}
static HRESULT WINAPI AudioCaptureClient_ReleaseBuffer(
IAudioCaptureClient *iface, UINT32 done)
{
ACImpl *This = impl_from_IAudioCaptureClient(iface);
struct alsa_stream *stream = This->stream;
TRACE("(%p)->(%u)\n", This, done);
EnterCriticalSection(&This->lock);
if(!done){
stream->getbuf_last = 0;
LeaveCriticalSection(&This->lock);
return S_OK;
}
if(!stream->getbuf_last){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_OUT_OF_ORDER;
}
if(stream->getbuf_last != done){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_INVALID_SIZE;
}
stream->written_frames += done;
stream->held_frames -= done;
stream->lcl_offs_frames += done;
stream->lcl_offs_frames %= stream->bufsize_frames;
stream->getbuf_last = 0;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static HRESULT WINAPI AudioCaptureClient_GetNextPacketSize(
IAudioCaptureClient *iface, UINT32 *frames)
{
ACImpl *This = impl_from_IAudioCaptureClient(iface);
struct alsa_stream *stream = This->stream;
TRACE("(%p)->(%p)\n", This, frames);
if(!frames)
return E_POINTER;
EnterCriticalSection(&This->lock);
*frames = stream->held_frames < stream->mmdev_period_frames ? 0 : stream->mmdev_period_frames;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static const IAudioCaptureClientVtbl AudioCaptureClient_Vtbl =
{
AudioCaptureClient_QueryInterface,
AudioCaptureClient_AddRef,
AudioCaptureClient_Release,
AudioCaptureClient_GetBuffer,
AudioCaptureClient_ReleaseBuffer,
AudioCaptureClient_GetNextPacketSize
};
static HRESULT WINAPI AudioClock_QueryInterface(IAudioClock *iface,
REFIID riid, void **ppv)
{
ACImpl *This = impl_from_IAudioClock(iface);
TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
if(!ppv)
return E_POINTER;
*ppv = NULL;
if(IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IAudioClock))
*ppv = iface;
else if(IsEqualIID(riid, &IID_IAudioClock2))
*ppv = &This->IAudioClock2_iface;
if(*ppv){
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
WARN("Unknown interface %s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
static ULONG WINAPI AudioClock_AddRef(IAudioClock *iface)
{
ACImpl *This = impl_from_IAudioClock(iface);
return IAudioClient3_AddRef(&This->IAudioClient3_iface);
}
static ULONG WINAPI AudioClock_Release(IAudioClock *iface)
{
ACImpl *This = impl_from_IAudioClock(iface);
return IAudioClient3_Release(&This->IAudioClient3_iface);
}
static HRESULT WINAPI AudioClock_GetFrequency(IAudioClock *iface, UINT64 *freq)
{
ACImpl *This = impl_from_IAudioClock(iface);
struct alsa_stream *stream = This->stream;
TRACE("(%p)->(%p)\n", This, freq);
if(stream->share == AUDCLNT_SHAREMODE_SHARED)
*freq = (UINT64)stream->fmt->nSamplesPerSec * stream->fmt->nBlockAlign;
else
*freq = stream->fmt->nSamplesPerSec;
return S_OK;
}
static HRESULT WINAPI AudioClock_GetPosition(IAudioClock *iface, UINT64 *pos,
UINT64 *qpctime)
{
ACImpl *This = impl_from_IAudioClock(iface);
struct alsa_stream *stream = This->stream;
UINT64 position;
snd_pcm_state_t alsa_state;
TRACE("(%p)->(%p, %p)\n", This, pos, qpctime);
if(!pos)
return E_POINTER;
EnterCriticalSection(&This->lock);
/* avail_update required to get accurate snd_pcm_state() */
snd_pcm_avail_update(stream->pcm_handle);
alsa_state = snd_pcm_state(stream->pcm_handle);
if(This->dataflow == eRender){
position = stream->written_frames - stream->held_frames;
if(stream->started && alsa_state == SND_PCM_STATE_RUNNING && stream->held_frames)
/* we should be using snd_pcm_delay here, but it is broken
* especially during ALSA device underrun. instead, let's just
* interpolate between periods with the system timer. */
position += interp_elapsed_frames(stream);
position = min(position, stream->written_frames - stream->held_frames + stream->mmdev_period_frames);
position = min(position, stream->written_frames);
}else
position = stream->written_frames + stream->held_frames;
/* ensure monotic growth */
if(position < stream->last_pos_frames)
position = stream->last_pos_frames;
else
stream->last_pos_frames = position;
TRACE("frames written: %u, held: %u, state: 0x%x, position: %u\n",
(UINT32)(stream->written_frames%1000000000), stream->held_frames,
alsa_state, (UINT32)(position%1000000000));
LeaveCriticalSection(&This->lock);
if(stream->share == AUDCLNT_SHAREMODE_SHARED)
*pos = position * stream->fmt->nBlockAlign;
else
*pos = position;
if(qpctime){
LARGE_INTEGER stamp, freq;
QueryPerformanceCounter(&stamp);
QueryPerformanceFrequency(&freq);
*qpctime = (stamp.QuadPart * (INT64)10000000) / freq.QuadPart;
}
return S_OK;
}
static HRESULT WINAPI AudioClock_GetCharacteristics(IAudioClock *iface,
DWORD *chars)
{
ACImpl *This = impl_from_IAudioClock(iface);
TRACE("(%p)->(%p)\n", This, chars);
if(!chars)
return E_POINTER;
*chars = AUDIOCLOCK_CHARACTERISTIC_FIXED_FREQ;
return S_OK;
}
static const IAudioClockVtbl AudioClock_Vtbl =
{
AudioClock_QueryInterface,
AudioClock_AddRef,
AudioClock_Release,
AudioClock_GetFrequency,
AudioClock_GetPosition,
AudioClock_GetCharacteristics
};
static HRESULT WINAPI AudioClock2_QueryInterface(IAudioClock2 *iface,
REFIID riid, void **ppv)
{
ACImpl *This = impl_from_IAudioClock2(iface);
return IAudioClock_QueryInterface(&This->IAudioClock_iface, riid, ppv);
}
static ULONG WINAPI AudioClock2_AddRef(IAudioClock2 *iface)
{
ACImpl *This = impl_from_IAudioClock2(iface);
return IAudioClient3_AddRef(&This->IAudioClient3_iface);
}
static ULONG WINAPI AudioClock2_Release(IAudioClock2 *iface)
{
ACImpl *This = impl_from_IAudioClock2(iface);
return IAudioClient3_Release(&This->IAudioClient3_iface);
}
static HRESULT WINAPI AudioClock2_GetDevicePosition(IAudioClock2 *iface,
UINT64 *pos, UINT64 *qpctime)
{
ACImpl *This = impl_from_IAudioClock2(iface);
FIXME("(%p)->(%p, %p)\n", This, pos, qpctime);
return E_NOTIMPL;
}
static const IAudioClock2Vtbl AudioClock2_Vtbl =
{
AudioClock2_QueryInterface,
AudioClock2_AddRef,
AudioClock2_Release,
AudioClock2_GetDevicePosition
};
static AudioSessionWrapper *AudioSessionWrapper_Create(ACImpl *client)
{
AudioSessionWrapper *ret;
ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
sizeof(AudioSessionWrapper));
if(!ret)
return NULL;
ret->IAudioSessionControl2_iface.lpVtbl = &AudioSessionControl2_Vtbl;
ret->ISimpleAudioVolume_iface.lpVtbl = &SimpleAudioVolume_Vtbl;
ret->IChannelAudioVolume_iface.lpVtbl = &ChannelAudioVolume_Vtbl;
ret->ref = 1;
ret->client = client;
if(client){
ret->session = client->session;
AudioClient_AddRef(&client->IAudioClient3_iface);
}
return ret;
}
static HRESULT WINAPI AudioSessionControl_QueryInterface(
IAudioSessionControl2 *iface, REFIID riid, void **ppv)
{
TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
if(!ppv)
return E_POINTER;
*ppv = NULL;
if(IsEqualIID(riid, &IID_IUnknown) ||
IsEqualIID(riid, &IID_IAudioSessionControl) ||
IsEqualIID(riid, &IID_IAudioSessionControl2))
*ppv = iface;
if(*ppv){
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
WARN("Unknown interface %s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
static ULONG WINAPI AudioSessionControl_AddRef(IAudioSessionControl2 *iface)
{
AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
ULONG ref;
ref = InterlockedIncrement(&This->ref);
TRACE("(%p) Refcount now %u\n", This, ref);
return ref;
}
static ULONG WINAPI AudioSessionControl_Release(IAudioSessionControl2 *iface)
{
AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
ULONG ref;
ref = InterlockedDecrement(&This->ref);
TRACE("(%p) Refcount now %u\n", This, ref);
if(!ref){
if(This->client){
EnterCriticalSection(&This->client->lock);
This->client->session_wrapper = NULL;
LeaveCriticalSection(&This->client->lock);
AudioClient_Release(&This->client->IAudioClient3_iface);
}
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static HRESULT WINAPI AudioSessionControl_GetState(IAudioSessionControl2 *iface,
AudioSessionState *state)
{
AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
ACImpl *client;
TRACE("(%p)->(%p)\n", This, state);
if(!state)
return NULL_PTR_ERR;
EnterCriticalSection(&g_sessions_lock);
if(list_empty(&This->session->clients)){
*state = AudioSessionStateExpired;
LeaveCriticalSection(&g_sessions_lock);
return S_OK;
}
LIST_FOR_EACH_ENTRY(client, &This->session->clients, ACImpl, entry){
EnterCriticalSection(&client->lock);
if(client->stream->started){
*state = AudioSessionStateActive;
LeaveCriticalSection(&client->lock);
LeaveCriticalSection(&g_sessions_lock);
return S_OK;
}
LeaveCriticalSection(&client->lock);
}
LeaveCriticalSection(&g_sessions_lock);
*state = AudioSessionStateInactive;
return S_OK;
}
static HRESULT WINAPI AudioSessionControl_GetDisplayName(
IAudioSessionControl2 *iface, WCHAR **name)
{
AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
FIXME("(%p)->(%p) - stub\n", This, name);
return E_NOTIMPL;
}
static HRESULT WINAPI AudioSessionControl_SetDisplayName(
IAudioSessionControl2 *iface, const WCHAR *name, const GUID *session)
{
AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
FIXME("(%p)->(%p, %s) - stub\n", This, name, debugstr_guid(session));
return E_NOTIMPL;
}
static HRESULT WINAPI AudioSessionControl_GetIconPath(
IAudioSessionControl2 *iface, WCHAR **path)
{
AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
FIXME("(%p)->(%p) - stub\n", This, path);
return E_NOTIMPL;
}
static HRESULT WINAPI AudioSessionControl_SetIconPath(
IAudioSessionControl2 *iface, const WCHAR *path, const GUID *session)
{
AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
FIXME("(%p)->(%p, %s) - stub\n", This, path, debugstr_guid(session));
return E_NOTIMPL;
}
static HRESULT WINAPI AudioSessionControl_GetGroupingParam(
IAudioSessionControl2 *iface, GUID *group)
{
AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
FIXME("(%p)->(%p) - stub\n", This, group);
return E_NOTIMPL;
}
static HRESULT WINAPI AudioSessionControl_SetGroupingParam(
IAudioSessionControl2 *iface, const GUID *group, const GUID *session)
{
AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
FIXME("(%p)->(%s, %s) - stub\n", This, debugstr_guid(group),
debugstr_guid(session));
return E_NOTIMPL;
}
static HRESULT WINAPI AudioSessionControl_RegisterAudioSessionNotification(
IAudioSessionControl2 *iface, IAudioSessionEvents *events)
{
AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
FIXME("(%p)->(%p) - stub\n", This, events);
return S_OK;
}
static HRESULT WINAPI AudioSessionControl_UnregisterAudioSessionNotification(
IAudioSessionControl2 *iface, IAudioSessionEvents *events)
{
AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
FIXME("(%p)->(%p) - stub\n", This, events);
return S_OK;
}
static HRESULT WINAPI AudioSessionControl_GetSessionIdentifier(
IAudioSessionControl2 *iface, WCHAR **id)
{
AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
FIXME("(%p)->(%p) - stub\n", This, id);
return E_NOTIMPL;
}
static HRESULT WINAPI AudioSessionControl_GetSessionInstanceIdentifier(
IAudioSessionControl2 *iface, WCHAR **id)
{
AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
FIXME("(%p)->(%p) - stub\n", This, id);
return E_NOTIMPL;
}
static HRESULT WINAPI AudioSessionControl_GetProcessId(
IAudioSessionControl2 *iface, DWORD *pid)
{
AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
TRACE("(%p)->(%p)\n", This, pid);
if(!pid)
return E_POINTER;
*pid = GetCurrentProcessId();
return S_OK;
}
static HRESULT WINAPI AudioSessionControl_IsSystemSoundsSession(
IAudioSessionControl2 *iface)
{
AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
TRACE("(%p)\n", This);
return S_FALSE;
}
static HRESULT WINAPI AudioSessionControl_SetDuckingPreference(
IAudioSessionControl2 *iface, BOOL optout)
{
AudioSessionWrapper *This = impl_from_IAudioSessionControl2(iface);
TRACE("(%p)->(%d)\n", This, optout);
return S_OK;
}
static const IAudioSessionControl2Vtbl AudioSessionControl2_Vtbl =
{
AudioSessionControl_QueryInterface,
AudioSessionControl_AddRef,
AudioSessionControl_Release,
AudioSessionControl_GetState,
AudioSessionControl_GetDisplayName,
AudioSessionControl_SetDisplayName,
AudioSessionControl_GetIconPath,
AudioSessionControl_SetIconPath,
AudioSessionControl_GetGroupingParam,
AudioSessionControl_SetGroupingParam,
AudioSessionControl_RegisterAudioSessionNotification,
AudioSessionControl_UnregisterAudioSessionNotification,
AudioSessionControl_GetSessionIdentifier,
AudioSessionControl_GetSessionInstanceIdentifier,
AudioSessionControl_GetProcessId,
AudioSessionControl_IsSystemSoundsSession,
AudioSessionControl_SetDuckingPreference
};
static HRESULT WINAPI SimpleAudioVolume_QueryInterface(
ISimpleAudioVolume *iface, REFIID riid, void **ppv)
{
TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
if(!ppv)
return E_POINTER;
*ppv = NULL;
if(IsEqualIID(riid, &IID_IUnknown) ||
IsEqualIID(riid, &IID_ISimpleAudioVolume))
*ppv = iface;
if(*ppv){
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
WARN("Unknown interface %s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
static ULONG WINAPI SimpleAudioVolume_AddRef(ISimpleAudioVolume *iface)
{
AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
return AudioSessionControl_AddRef(&This->IAudioSessionControl2_iface);
}
static ULONG WINAPI SimpleAudioVolume_Release(ISimpleAudioVolume *iface)
{
AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
return AudioSessionControl_Release(&This->IAudioSessionControl2_iface);
}
static HRESULT WINAPI SimpleAudioVolume_SetMasterVolume(
ISimpleAudioVolume *iface, float level, const GUID *context)
{
AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
AudioSession *session = This->session;
TRACE("(%p)->(%f, %s)\n", session, level, wine_dbgstr_guid(context));
if(level < 0.f || level > 1.f)
return E_INVALIDARG;
if(context)
FIXME("Notifications not supported yet\n");
TRACE("ALSA does not support volume control\n");
EnterCriticalSection(&g_sessions_lock);
session->master_vol = level;
LeaveCriticalSection(&g_sessions_lock);
return S_OK;
}
static HRESULT WINAPI SimpleAudioVolume_GetMasterVolume(
ISimpleAudioVolume *iface, float *level)
{
AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
AudioSession *session = This->session;
TRACE("(%p)->(%p)\n", session, level);
if(!level)
return NULL_PTR_ERR;
*level = session->master_vol;
return S_OK;
}
static HRESULT WINAPI SimpleAudioVolume_SetMute(ISimpleAudioVolume *iface,
BOOL mute, const GUID *context)
{
AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
AudioSession *session = This->session;
TRACE("(%p)->(%u, %s)\n", session, mute, debugstr_guid(context));
if(context)
FIXME("Notifications not supported yet\n");
session->mute = mute;
return S_OK;
}
static HRESULT WINAPI SimpleAudioVolume_GetMute(ISimpleAudioVolume *iface,
BOOL *mute)
{
AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
AudioSession *session = This->session;
TRACE("(%p)->(%p)\n", session, mute);
if(!mute)
return NULL_PTR_ERR;
*mute = session->mute;
return S_OK;
}
static const ISimpleAudioVolumeVtbl SimpleAudioVolume_Vtbl =
{
SimpleAudioVolume_QueryInterface,
SimpleAudioVolume_AddRef,
SimpleAudioVolume_Release,
SimpleAudioVolume_SetMasterVolume,
SimpleAudioVolume_GetMasterVolume,
SimpleAudioVolume_SetMute,
SimpleAudioVolume_GetMute
};
static HRESULT WINAPI AudioStreamVolume_QueryInterface(
IAudioStreamVolume *iface, REFIID riid, void **ppv)
{
TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
if(!ppv)
return E_POINTER;
*ppv = NULL;
if(IsEqualIID(riid, &IID_IUnknown) ||
IsEqualIID(riid, &IID_IAudioStreamVolume))
*ppv = iface;
if(*ppv){
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
WARN("Unknown interface %s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
static ULONG WINAPI AudioStreamVolume_AddRef(IAudioStreamVolume *iface)
{
ACImpl *This = impl_from_IAudioStreamVolume(iface);
return IAudioClient3_AddRef(&This->IAudioClient3_iface);
}
static ULONG WINAPI AudioStreamVolume_Release(IAudioStreamVolume *iface)
{
ACImpl *This = impl_from_IAudioStreamVolume(iface);
return IAudioClient3_Release(&This->IAudioClient3_iface);
}
static HRESULT WINAPI AudioStreamVolume_GetChannelCount(
IAudioStreamVolume *iface, UINT32 *out)
{
ACImpl *This = impl_from_IAudioStreamVolume(iface);
TRACE("(%p)->(%p)\n", This, out);
if(!out)
return E_POINTER;
*out = This->channel_count;
return S_OK;
}
static HRESULT WINAPI AudioStreamVolume_SetChannelVolume(
IAudioStreamVolume *iface, UINT32 index, float level)
{
ACImpl *This = impl_from_IAudioStreamVolume(iface);
TRACE("(%p)->(%d, %f)\n", This, index, level);
if(level < 0.f || level > 1.f)
return E_INVALIDARG;
if(index >= This->channel_count)
return E_INVALIDARG;
TRACE("ALSA does not support volume control\n");
EnterCriticalSection(&This->lock);
This->vols[index] = level;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static HRESULT WINAPI AudioStreamVolume_GetChannelVolume(
IAudioStreamVolume *iface, UINT32 index, float *level)
{
ACImpl *This = impl_from_IAudioStreamVolume(iface);
TRACE("(%p)->(%d, %p)\n", This, index, level);
if(!level)
return E_POINTER;
if(index >= This->channel_count)
return E_INVALIDARG;
*level = This->vols[index];
return S_OK;
}
static HRESULT WINAPI AudioStreamVolume_SetAllVolumes(
IAudioStreamVolume *iface, UINT32 count, const float *levels)
{
ACImpl *This = impl_from_IAudioStreamVolume(iface);
unsigned int i;
TRACE("(%p)->(%d, %p)\n", This, count, levels);
if(!levels)
return E_POINTER;
if(count != This->channel_count)
return E_INVALIDARG;
TRACE("ALSA does not support volume control\n");
EnterCriticalSection(&This->lock);
for(i = 0; i < count; ++i)
This->vols[i] = levels[i];
LeaveCriticalSection(&This->lock);
return S_OK;
}
static HRESULT WINAPI AudioStreamVolume_GetAllVolumes(
IAudioStreamVolume *iface, UINT32 count, float *levels)
{
ACImpl *This = impl_from_IAudioStreamVolume(iface);
unsigned int i;
TRACE("(%p)->(%d, %p)\n", This, count, levels);
if(!levels)
return E_POINTER;
if(count != This->channel_count)
return E_INVALIDARG;
EnterCriticalSection(&This->lock);
for(i = 0; i < count; ++i)
levels[i] = This->vols[i];
LeaveCriticalSection(&This->lock);
return S_OK;
}
static const IAudioStreamVolumeVtbl AudioStreamVolume_Vtbl =
{
AudioStreamVolume_QueryInterface,
AudioStreamVolume_AddRef,
AudioStreamVolume_Release,
AudioStreamVolume_GetChannelCount,
AudioStreamVolume_SetChannelVolume,
AudioStreamVolume_GetChannelVolume,
AudioStreamVolume_SetAllVolumes,
AudioStreamVolume_GetAllVolumes
};
static HRESULT WINAPI ChannelAudioVolume_QueryInterface(
IChannelAudioVolume *iface, REFIID riid, void **ppv)
{
TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
if(!ppv)
return E_POINTER;
*ppv = NULL;
if(IsEqualIID(riid, &IID_IUnknown) ||
IsEqualIID(riid, &IID_IChannelAudioVolume))
*ppv = iface;
if(*ppv){
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
WARN("Unknown interface %s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
static ULONG WINAPI ChannelAudioVolume_AddRef(IChannelAudioVolume *iface)
{
AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
return AudioSessionControl_AddRef(&This->IAudioSessionControl2_iface);
}
static ULONG WINAPI ChannelAudioVolume_Release(IChannelAudioVolume *iface)
{
AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
return AudioSessionControl_Release(&This->IAudioSessionControl2_iface);
}
static HRESULT WINAPI ChannelAudioVolume_GetChannelCount(
IChannelAudioVolume *iface, UINT32 *out)
{
AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
AudioSession *session = This->session;
TRACE("(%p)->(%p)\n", session, out);
if(!out)
return NULL_PTR_ERR;
*out = session->channel_count;
return S_OK;
}
static HRESULT WINAPI ChannelAudioVolume_SetChannelVolume(
IChannelAudioVolume *iface, UINT32 index, float level,
const GUID *context)
{
AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
AudioSession *session = This->session;
TRACE("(%p)->(%d, %f, %s)\n", session, index, level,
wine_dbgstr_guid(context));
if(level < 0.f || level > 1.f)
return E_INVALIDARG;
if(index >= session->channel_count)
return E_INVALIDARG;
if(context)
FIXME("Notifications not supported yet\n");
TRACE("ALSA does not support volume control\n");
EnterCriticalSection(&g_sessions_lock);
session->channel_vols[index] = level;
LeaveCriticalSection(&g_sessions_lock);
return S_OK;
}
static HRESULT WINAPI ChannelAudioVolume_GetChannelVolume(
IChannelAudioVolume *iface, UINT32 index, float *level)
{
AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
AudioSession *session = This->session;
TRACE("(%p)->(%d, %p)\n", session, index, level);
if(!level)
return NULL_PTR_ERR;
if(index >= session->channel_count)
return E_INVALIDARG;
*level = session->channel_vols[index];
return S_OK;
}
static HRESULT WINAPI ChannelAudioVolume_SetAllVolumes(
IChannelAudioVolume *iface, UINT32 count, const float *levels,
const GUID *context)
{
AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
AudioSession *session = This->session;
unsigned int i;
TRACE("(%p)->(%d, %p, %s)\n", session, count, levels,
wine_dbgstr_guid(context));
if(!levels)
return NULL_PTR_ERR;
if(count != session->channel_count)
return E_INVALIDARG;
if(context)
FIXME("Notifications not supported yet\n");
TRACE("ALSA does not support volume control\n");
EnterCriticalSection(&g_sessions_lock);
for(i = 0; i < count; ++i)
session->channel_vols[i] = levels[i];
LeaveCriticalSection(&g_sessions_lock);
return S_OK;
}
static HRESULT WINAPI ChannelAudioVolume_GetAllVolumes(
IChannelAudioVolume *iface, UINT32 count, float *levels)
{
AudioSessionWrapper *This = impl_from_IChannelAudioVolume(iface);
AudioSession *session = This->session;
unsigned int i;
TRACE("(%p)->(%d, %p)\n", session, count, levels);
if(!levels)
return NULL_PTR_ERR;
if(count != session->channel_count)
return E_INVALIDARG;
for(i = 0; i < count; ++i)
levels[i] = session->channel_vols[i];
return S_OK;
}
static const IChannelAudioVolumeVtbl ChannelAudioVolume_Vtbl =
{
ChannelAudioVolume_QueryInterface,
ChannelAudioVolume_AddRef,
ChannelAudioVolume_Release,
ChannelAudioVolume_GetChannelCount,
ChannelAudioVolume_SetChannelVolume,
ChannelAudioVolume_GetChannelVolume,
ChannelAudioVolume_SetAllVolumes,
ChannelAudioVolume_GetAllVolumes
};
static HRESULT WINAPI AudioSessionManager_QueryInterface(IAudioSessionManager2 *iface,
REFIID riid, void **ppv)
{
TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
if(!ppv)
return E_POINTER;
*ppv = NULL;
if(IsEqualIID(riid, &IID_IUnknown) ||
IsEqualIID(riid, &IID_IAudioSessionManager) ||
IsEqualIID(riid, &IID_IAudioSessionManager2))
*ppv = iface;
if(*ppv){
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
WARN("Unknown interface %s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
static ULONG WINAPI AudioSessionManager_AddRef(IAudioSessionManager2 *iface)
{
SessionMgr *This = impl_from_IAudioSessionManager2(iface);
ULONG ref;
ref = InterlockedIncrement(&This->ref);
TRACE("(%p) Refcount now %u\n", This, ref);
return ref;
}
static ULONG WINAPI AudioSessionManager_Release(IAudioSessionManager2 *iface)
{
SessionMgr *This = impl_from_IAudioSessionManager2(iface);
ULONG ref;
ref = InterlockedDecrement(&This->ref);
TRACE("(%p) Refcount now %u\n", This, ref);
if(!ref)
HeapFree(GetProcessHeap(), 0, This);
return ref;
}
static HRESULT WINAPI AudioSessionManager_GetAudioSessionControl(
IAudioSessionManager2 *iface, const GUID *session_guid, DWORD flags,
IAudioSessionControl **out)
{
SessionMgr *This = impl_from_IAudioSessionManager2(iface);
AudioSession *session;
AudioSessionWrapper *wrapper;
HRESULT hr;
TRACE("(%p)->(%s, %x, %p)\n", This, debugstr_guid(session_guid),
flags, out);
hr = get_audio_session(session_guid, This->device, 0, &session);
if(FAILED(hr))
return hr;
wrapper = AudioSessionWrapper_Create(NULL);
if(!wrapper)
return E_OUTOFMEMORY;
wrapper->session = session;
*out = (IAudioSessionControl*)&wrapper->IAudioSessionControl2_iface;
return S_OK;
}
static HRESULT WINAPI AudioSessionManager_GetSimpleAudioVolume(
IAudioSessionManager2 *iface, const GUID *session_guid, DWORD flags,
ISimpleAudioVolume **out)
{
SessionMgr *This = impl_from_IAudioSessionManager2(iface);
AudioSession *session;
AudioSessionWrapper *wrapper;
HRESULT hr;
TRACE("(%p)->(%s, %x, %p)\n", This, debugstr_guid(session_guid),
flags, out);
hr = get_audio_session(session_guid, This->device, 0, &session);
if(FAILED(hr))
return hr;
wrapper = AudioSessionWrapper_Create(NULL);
if(!wrapper)
return E_OUTOFMEMORY;
wrapper->session = session;
*out = &wrapper->ISimpleAudioVolume_iface;
return S_OK;
}
static HRESULT WINAPI AudioSessionManager_GetSessionEnumerator(
IAudioSessionManager2 *iface, IAudioSessionEnumerator **out)
{
SessionMgr *This = impl_from_IAudioSessionManager2(iface);
FIXME("(%p)->(%p) - stub\n", This, out);
return E_NOTIMPL;
}
static HRESULT WINAPI AudioSessionManager_RegisterSessionNotification(
IAudioSessionManager2 *iface, IAudioSessionNotification *notification)
{
SessionMgr *This = impl_from_IAudioSessionManager2(iface);
FIXME("(%p)->(%p) - stub\n", This, notification);
return E_NOTIMPL;
}
static HRESULT WINAPI AudioSessionManager_UnregisterSessionNotification(
IAudioSessionManager2 *iface, IAudioSessionNotification *notification)
{
SessionMgr *This = impl_from_IAudioSessionManager2(iface);
FIXME("(%p)->(%p) - stub\n", This, notification);
return E_NOTIMPL;
}
static HRESULT WINAPI AudioSessionManager_RegisterDuckNotification(
IAudioSessionManager2 *iface, const WCHAR *session_id,
IAudioVolumeDuckNotification *notification)
{
SessionMgr *This = impl_from_IAudioSessionManager2(iface);
FIXME("(%p)->(%p) - stub\n", This, notification);
return E_NOTIMPL;
}
static HRESULT WINAPI AudioSessionManager_UnregisterDuckNotification(
IAudioSessionManager2 *iface,
IAudioVolumeDuckNotification *notification)
{
SessionMgr *This = impl_from_IAudioSessionManager2(iface);
FIXME("(%p)->(%p) - stub\n", This, notification);
return E_NOTIMPL;
}
static const IAudioSessionManager2Vtbl AudioSessionManager2_Vtbl =
{
AudioSessionManager_QueryInterface,
AudioSessionManager_AddRef,
AudioSessionManager_Release,
AudioSessionManager_GetAudioSessionControl,
AudioSessionManager_GetSimpleAudioVolume,
AudioSessionManager_GetSessionEnumerator,
AudioSessionManager_RegisterSessionNotification,
AudioSessionManager_UnregisterSessionNotification,
AudioSessionManager_RegisterDuckNotification,
AudioSessionManager_UnregisterDuckNotification
};
HRESULT WINAPI AUDDRV_GetAudioSessionManager(IMMDevice *device,
IAudioSessionManager2 **out)
{
SessionMgr *This;
This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(SessionMgr));
if(!This)
return E_OUTOFMEMORY;
This->IAudioSessionManager2_iface.lpVtbl = &AudioSessionManager2_Vtbl;
This->device = device;
This->ref = 1;
*out = &This->IAudioSessionManager2_iface;
return S_OK;
}
static unsigned int alsa_probe_num_speakers(char *name) {
snd_pcm_t *handle;
snd_pcm_hw_params_t *params;
int err;
unsigned int max_channels = 0;
if ((err = snd_pcm_open(&handle, name, SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK)) < 0) {
WARN("The device \"%s\" failed to open: %d (%s).\n",
name, err, snd_strerror(err));
return 0;
}
params = HeapAlloc(GetProcessHeap(), 0, snd_pcm_hw_params_sizeof());
if (!params) {
WARN("Out of memory.\n");
snd_pcm_close(handle);
return 0;
}
if ((err = snd_pcm_hw_params_any(handle, params)) < 0) {
WARN("snd_pcm_hw_params_any failed for \"%s\": %d (%s).\n",
name, err, snd_strerror(err));
goto exit;
}
if ((err = snd_pcm_hw_params_get_channels_max(params,
&max_channels)) < 0){
WARN("Unable to get max channels: %d (%s)\n", err, snd_strerror(err));
goto exit;
}
exit:
HeapFree(GetProcessHeap(), 0, params);
snd_pcm_close(handle);
return max_channels;
}
enum AudioDeviceConnectionType {
AudioDeviceConnectionType_Unknown = 0,
AudioDeviceConnectionType_PCI,
AudioDeviceConnectionType_USB
};
HRESULT WINAPI AUDDRV_GetPropValue(GUID *guid, const PROPERTYKEY *prop, PROPVARIANT *out)
{
char name[256];
EDataFlow flow;
static const PROPERTYKEY devicepath_key = { /* undocumented? - {b3f8fa53-0004-438e-9003-51a46e139bfc},2 */
{0xb3f8fa53, 0x0004, 0x438e, {0x90, 0x03, 0x51, 0xa4, 0x6e, 0x13, 0x9b, 0xfc}}, 2
};
TRACE("%s, (%s,%u), %p\n", wine_dbgstr_guid(guid), wine_dbgstr_guid(&prop->fmtid), prop->pid, out);
if(!get_alsa_name_by_guid(guid, name, sizeof(name), &flow))
{
WARN("Unknown interface %s\n", debugstr_guid(guid));
return E_NOINTERFACE;
}
if(IsEqualPropertyKey(*prop, devicepath_key))
{
char uevent[MAX_PATH];
FILE *fuevent;
int card, device;
/* only implemented for identifiable devices, i.e. not "default" */
if(!sscanf(name, "plughw:%u,%u", &card, &device))
return E_NOTIMPL;
sprintf(uevent, "/sys/class/sound/card%u/device/uevent", card);
fuevent = fopen(uevent, "r");
if(fuevent){
enum AudioDeviceConnectionType connection = AudioDeviceConnectionType_Unknown;
USHORT vendor_id = 0, product_id = 0;
char line[256];
while (fgets(line, sizeof(line), fuevent)) {
char *val;
size_t val_len;
if((val = strchr(line, '='))) {
val[0] = 0;
val++;
val_len = strlen(val);
if(val_len > 0 && val[val_len - 1] == '\n') { val[val_len - 1] = 0; }
if(!strcmp(line, "PCI_ID")){
connection = AudioDeviceConnectionType_PCI;
if(sscanf(val, "%hX:%hX", &vendor_id, &product_id)<2){
WARN("Unexpected input when reading PCI_ID in uevent file.\n");
connection = AudioDeviceConnectionType_Unknown;
break;
}
}else if(!strcmp(line, "DEVTYPE") && !strcmp(val,"usb_interface"))
connection = AudioDeviceConnectionType_USB;
else if(!strcmp(line, "PRODUCT"))
if(sscanf(val, "%hx/%hx/", &vendor_id, &product_id)<2){
WARN("Unexpected input when reading PRODUCT in uevent file.\n");
connection = AudioDeviceConnectionType_Unknown;
break;
}
}
}
fclose(fuevent);
if(connection == AudioDeviceConnectionType_USB || connection == AudioDeviceConnectionType_PCI){
static const WCHAR usbformatW[] = { '{','1','}','.','U','S','B','\\','V','I','D','_',
'%','0','4','X','&','P','I','D','_','%','0','4','X','\\',
'%','u','&','%','0','8','X',0 }; /* "{1}.USB\VID_%04X&PID_%04X\%u&%08X" */
static const WCHAR pciformatW[] = { '{','1','}','.','H','D','A','U','D','I','O','\\','F','U','N','C','_','0','1','&',
'V','E','N','_','%','0','4','X','&','D','E','V','_',
'%','0','4','X','\\','%','u','&','%','0','8','X',0 }; /* "{1}.HDAUDIO\FUNC_01&VEN_%04X&DEV_%04X\%u&%08X" */
UINT serial_number;
/* As hardly any audio devices have serial numbers, Windows instead
appears to use a persistent random number. We emulate this here
by instead using the last 8 hex digits of the GUID. */
serial_number = (guid->Data4[4] << 24) | (guid->Data4[5] << 16) | (guid->Data4[6] << 8) | guid->Data4[7];
out->vt = VT_LPWSTR;
out->pwszVal = CoTaskMemAlloc(128 * sizeof(WCHAR));
if(!out->pwszVal)
return E_OUTOFMEMORY;
if(connection == AudioDeviceConnectionType_USB)
sprintfW( out->pwszVal, usbformatW, vendor_id, product_id, device, serial_number);
else if(connection == AudioDeviceConnectionType_PCI)
sprintfW( out->pwszVal, pciformatW, vendor_id, product_id, device, serial_number);
return S_OK;
}
}else{
WARN("Could not open %s for reading\n", uevent);
return E_NOTIMPL;
}
} else if (flow != eCapture && IsEqualPropertyKey(*prop, PKEY_AudioEndpoint_PhysicalSpeakers)) {
unsigned int num_speakers, card, device;
char hwname[255];
if (sscanf(name, "plughw:%u,%u", &card, &device))
sprintf(hwname, "hw:%u,%u", card, device); /* must be hw rather than plughw to work */
else
strcpy(hwname, name);
num_speakers = alsa_probe_num_speakers(hwname);
if (num_speakers == 0)
return E_FAIL;
out->vt = VT_UI4;
if (num_speakers > 6)
out->ulVal = KSAUDIO_SPEAKER_STEREO;
else if (num_speakers == 6)
out->ulVal = KSAUDIO_SPEAKER_5POINT1;
else if (num_speakers >= 4)
out->ulVal = KSAUDIO_SPEAKER_QUAD;
else if (num_speakers >= 2)
out->ulVal = KSAUDIO_SPEAKER_STEREO;
else if (num_speakers == 1)
out->ulVal = KSAUDIO_SPEAKER_MONO;
return S_OK;
}
TRACE("Unimplemented property %s,%u\n", wine_dbgstr_guid(&prop->fmtid), prop->pid);
return E_NOTIMPL;
}
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