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wine/dlls/winepulse.drv/mmdevdrv.c

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/*
* Copyright 2011-2012 Maarten Lankhorst
* Copyright 2010-2011 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 COBJMACROS
#include <stdarg.h>
#include <assert.h>
#include <wchar.h>
#include "windef.h"
#include "winbase.h"
#include "winternl.h"
#include "wine/debug.h"
#include "wine/list.h"
#include "wine/unixlib.h"
#include "ole2.h"
#include "mimeole.h"
#include "dshow.h"
#include "dsound.h"
#include "propsys.h"
#include "propkey.h"
#include "initguid.h"
#include "ks.h"
#include "ksmedia.h"
#include "mmdeviceapi.h"
#include "audioclient.h"
#include "endpointvolume.h"
#include "audiopolicy.h"
#include "../mmdevapi/unixlib.h"
#include "../mmdevapi/mmdevdrv.h"
WINE_DEFAULT_DEBUG_CHANNEL(pulse);
#define MAX_PULSE_NAME_LEN 256
#define NULL_PTR_ERR MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, RPC_X_NULL_REF_POINTER)
static struct list g_sessions = LIST_INIT(g_sessions);
static struct list g_devices_cache = LIST_INIT(g_devices_cache);
struct device_cache {
struct list entry;
GUID guid;
EDataFlow dataflow;
char pulse_name[0];
};
static GUID pulse_render_guid =
{ 0xfd47d9cc, 0x4218, 0x4135, { 0x9c, 0xe2, 0x0c, 0x19, 0x5c, 0x87, 0x40, 0x5b } };
static GUID pulse_capture_guid =
{ 0x25da76d0, 0x033c, 0x4235, { 0x90, 0x02, 0x19, 0xf4, 0x88, 0x94, 0xac, 0x6f } };
static WCHAR drv_key_devicesW[256];
static CRITICAL_SECTION session_cs;
static CRITICAL_SECTION_DEBUG session_cs_debug = {
0, 0, &session_cs,
{ &session_cs_debug.ProcessLocksList,
&session_cs_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": session_cs") }
};
static CRITICAL_SECTION session_cs = { &session_cs_debug, -1, 0, 0, 0, 0 };
void DECLSPEC_HIDDEN sessions_lock(void)
{
EnterCriticalSection(&session_cs);
}
void DECLSPEC_HIDDEN sessions_unlock(void)
{
LeaveCriticalSection(&session_cs);
}
BOOL WINAPI DllMain(HINSTANCE dll, DWORD reason, void *reserved)
{
if (reason == DLL_PROCESS_ATTACH) {
WCHAR buf[MAX_PATH];
WCHAR *filename;
DisableThreadLibraryCalls(dll);
if (__wine_init_unix_call())
return FALSE;
GetModuleFileNameW(dll, buf, ARRAY_SIZE(buf));
filename = wcsrchr(buf, '\\');
filename = filename ? filename + 1 : buf;
swprintf(drv_key_devicesW, ARRAY_SIZE(drv_key_devicesW),
L"Software\\Wine\\Drivers\\%s\\devices", filename);
} else if (reason == DLL_PROCESS_DETACH) {
struct device_cache *device, *device_next;
LIST_FOR_EACH_ENTRY_SAFE(device, device_next, &g_devices_cache, struct device_cache, entry)
free(device);
}
return TRUE;
}
static const IAudioClient3Vtbl AudioClient3_Vtbl;
extern const IAudioRenderClientVtbl AudioRenderClient_Vtbl;
extern const IAudioCaptureClientVtbl AudioCaptureClient_Vtbl;
extern const IAudioSessionControl2Vtbl AudioSessionControl2_Vtbl;
extern const ISimpleAudioVolumeVtbl SimpleAudioVolume_Vtbl;
extern const IChannelAudioVolumeVtbl ChannelAudioVolume_Vtbl;
extern const IAudioClockVtbl AudioClock_Vtbl;
extern const IAudioClock2Vtbl AudioClock2_Vtbl;
extern const IAudioStreamVolumeVtbl AudioStreamVolume_Vtbl;
extern struct audio_session_wrapper *session_wrapper_create(
struct audio_client *client) DECLSPEC_HIDDEN;
static inline ACImpl *impl_from_IAudioClient3(IAudioClient3 *iface)
{
return CONTAINING_RECORD(iface, ACImpl, IAudioClient3_iface);
}
static void pulse_call(enum unix_funcs code, void *params)
{
NTSTATUS status;
status = WINE_UNIX_CALL(code, params);
assert(!status);
}
static void get_device_guid(HKEY drv_key, EDataFlow flow, const char *pulse_name, GUID *guid)
{
WCHAR key_name[MAX_PULSE_NAME_LEN + 2];
DWORD type, size = sizeof(*guid);
LSTATUS status;
HKEY dev_key;
if (!pulse_name[0]) {
*guid = (flow == eRender) ? pulse_render_guid : pulse_capture_guid;
return;
}
if (!drv_key) {
CoCreateGuid(guid);
return;
}
key_name[0] = (flow == eRender) ? '0' : '1';
key_name[1] = ',';
MultiByteToWideChar(CP_UNIXCP, 0, pulse_name, -1, key_name + 2, ARRAY_SIZE(key_name) - 2);
status = RegCreateKeyExW(drv_key, key_name, 0, NULL, 0, KEY_READ | KEY_WRITE | KEY_WOW64_64KEY,
NULL, &dev_key, NULL);
if (status != ERROR_SUCCESS) {
ERR("Failed to open registry key for device %s: %lu\n", pulse_name, status);
CoCreateGuid(guid);
return;
}
status = RegQueryValueExW(dev_key, L"guid", 0, &type, (BYTE*)guid, &size);
if (status != ERROR_SUCCESS || type != REG_BINARY || size != sizeof(*guid)) {
CoCreateGuid(guid);
status = RegSetValueExW(dev_key, L"guid", 0, REG_BINARY, (BYTE*)guid, sizeof(*guid));
if (status != ERROR_SUCCESS)
ERR("Failed to store device GUID for %s to registry: %lu\n", pulse_name, status);
}
RegCloseKey(dev_key);
}
HRESULT WINAPI AUDDRV_GetEndpointIDs(EDataFlow flow, WCHAR ***ids_out, GUID **keys,
UINT *num, UINT *def_index)
{
struct get_endpoint_ids_params params;
GUID *guids = NULL;
WCHAR **ids = NULL;
unsigned int i = 0;
LSTATUS status;
HKEY drv_key;
TRACE("%d %p %p %p\n", flow, ids_out, num, def_index);
params.flow = flow;
params.size = MAX_PULSE_NAME_LEN * 4;
params.endpoints = NULL;
do {
HeapFree(GetProcessHeap(), 0, params.endpoints);
params.endpoints = HeapAlloc(GetProcessHeap(), 0, params.size);
pulse_call(get_endpoint_ids, &params);
} while(params.result == HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER));
if (FAILED(params.result))
goto end;
ids = HeapAlloc(GetProcessHeap(), 0, params.num * sizeof(*ids));
guids = HeapAlloc(GetProcessHeap(), 0, params.num * sizeof(*guids));
if (!ids || !guids) {
params.result = E_OUTOFMEMORY;
goto end;
}
status = RegCreateKeyExW(HKEY_CURRENT_USER, drv_key_devicesW, 0, NULL, 0,
KEY_WRITE | KEY_WOW64_64KEY, NULL, &drv_key, NULL);
if (status != ERROR_SUCCESS) {
ERR("Failed to open devices registry key: %lu\n", status);
drv_key = NULL;
}
for (i = 0; i < params.num; i++) {
WCHAR *name = (WCHAR *)((char *)params.endpoints + params.endpoints[i].name);
char *pulse_name = (char *)params.endpoints + params.endpoints[i].device;
unsigned int size = (wcslen(name) + 1) * sizeof(WCHAR);
if (!(ids[i] = HeapAlloc(GetProcessHeap(), 0, size))) {
params.result = E_OUTOFMEMORY;
break;
}
memcpy(ids[i], name, size);
get_device_guid(drv_key, flow, pulse_name, &guids[i]);
}
if (drv_key)
RegCloseKey(drv_key);
end:
HeapFree(GetProcessHeap(), 0, params.endpoints);
if (FAILED(params.result)) {
HeapFree(GetProcessHeap(), 0, guids);
while (i--) HeapFree(GetProcessHeap(), 0, ids[i]);
HeapFree(GetProcessHeap(), 0, ids);
} else {
*ids_out = ids;
*keys = guids;
*num = params.num;
*def_index = params.default_idx;
}
return params.result;
}
static BOOL get_pulse_name_by_guid(const GUID *guid, char pulse_name[MAX_PULSE_NAME_LEN], EDataFlow *flow)
{
struct device_cache *device;
WCHAR key_name[MAX_PULSE_NAME_LEN + 2];
DWORD key_name_size;
DWORD index = 0;
HKEY key;
/* Return empty string for default PulseAudio device */
pulse_name[0] = 0;
if (IsEqualGUID(guid, &pulse_render_guid)) {
*flow = eRender;
return TRUE;
} else if (IsEqualGUID(guid, &pulse_capture_guid)) {
*flow = eCapture;
return TRUE;
}
/* Check the cache first */
LIST_FOR_EACH_ENTRY(device, &g_devices_cache, struct device_cache, entry) {
if (!IsEqualGUID(guid, &device->guid))
continue;
*flow = device->dataflow;
strcpy(pulse_name, device->pulse_name);
return TRUE;
}
if (RegOpenKeyExW(HKEY_CURRENT_USER, drv_key_devicesW, 0, KEY_READ | KEY_WOW64_64KEY, &key) != ERROR_SUCCESS) {
WARN("No devices found in registry\n");
return FALSE;
}
for (;;) {
DWORD size, type;
LSTATUS status;
GUID reg_guid;
HKEY dev_key;
int len;
key_name_size = ARRAY_SIZE(key_name);
if (RegEnumKeyExW(key, index++, key_name, &key_name_size, NULL, NULL, NULL, NULL) != ERROR_SUCCESS)
break;
if (RegOpenKeyExW(key, key_name, 0, KEY_READ | KEY_WOW64_64KEY, &dev_key) != ERROR_SUCCESS) {
ERR("Couldn't open key: %s\n", wine_dbgstr_w(key_name));
continue;
}
size = sizeof(reg_guid);
status = RegQueryValueExW(dev_key, L"guid", 0, &type, (BYTE *)&reg_guid, &size);
RegCloseKey(dev_key);
if (status == ERROR_SUCCESS && type == REG_BINARY && size == sizeof(reg_guid) && IsEqualGUID(&reg_guid, guid)) {
RegCloseKey(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 {
WARN("Unknown device type: %c\n", key_name[0]);
return FALSE;
}
if (!(len = WideCharToMultiByte(CP_UNIXCP, 0, key_name + 2, -1, pulse_name, MAX_PULSE_NAME_LEN, NULL, NULL)))
return FALSE;
if ((device = malloc(FIELD_OFFSET(struct device_cache, pulse_name[len])))) {
device->guid = reg_guid;
device->dataflow = *flow;
strcpy(device->pulse_name, pulse_name);
list_add_tail(&g_devices_cache, &device->entry);
}
return TRUE;
}
}
RegCloseKey(key);
WARN("No matching device in registry for GUID %s\n", debugstr_guid(guid));
return FALSE;
}
HRESULT WINAPI AUDDRV_GetAudioEndpoint(GUID *guid, IMMDevice *dev, IAudioClient **out)
{
ACImpl *This;
char pulse_name[MAX_PULSE_NAME_LEN];
EDataFlow dataflow;
unsigned len;
HRESULT hr;
TRACE("%s %p %p\n", debugstr_guid(guid), dev, out);
if (!get_pulse_name_by_guid(guid, pulse_name, &dataflow))
return AUDCLNT_E_DEVICE_INVALIDATED;
*out = NULL;
len = strlen(pulse_name) + 1;
This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, FIELD_OFFSET(ACImpl, device_name[len]));
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;
This->dataflow = dataflow;
This->parent = dev;
memcpy(This->device_name, pulse_name, len);
hr = CoCreateFreeThreadedMarshaler((IUnknown*)&This->IAudioClient3_iface, &This->marshal);
if (FAILED(hr)) {
HeapFree(GetProcessHeap(), 0, This);
return hr;
}
IMMDevice_AddRef(This->parent);
*out = (IAudioClient *)&This->IAudioClient3_iface;
IAudioClient3_AddRef(&This->IAudioClient3_iface);
return S_OK;
}
extern HRESULT WINAPI client_QueryInterface(IAudioClient3 *iface,
REFIID riid, void **ppv);
extern ULONG WINAPI client_AddRef(IAudioClient3 *iface);
extern ULONG WINAPI client_Release(IAudioClient3 *iface);
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 */
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;
}
extern HRESULT WINAPI client_Initialize(IAudioClient3 *iface,
AUDCLNT_SHAREMODE mode, DWORD flags, REFERENCE_TIME duration,
REFERENCE_TIME period, const WAVEFORMATEX *fmt,
const GUID *sessionguid);
extern HRESULT WINAPI client_GetBufferSize(IAudioClient3 *iface,
UINT32 *out);
extern HRESULT WINAPI client_GetStreamLatency(IAudioClient3 *iface,
REFERENCE_TIME *latency);
extern HRESULT WINAPI client_GetCurrentPadding(IAudioClient3 *iface,
UINT32 *out);
extern HRESULT WINAPI client_IsFormatSupported(IAudioClient3 *iface,
AUDCLNT_SHAREMODE mode, const WAVEFORMATEX *fmt,
WAVEFORMATEX **out);
extern HRESULT WINAPI client_GetMixFormat(IAudioClient3 *iface,
WAVEFORMATEX **pwfx);
extern HRESULT WINAPI client_GetDevicePeriod(IAudioClient3 *iface,
REFERENCE_TIME *defperiod, REFERENCE_TIME *minperiod);
extern HRESULT WINAPI client_Start(IAudioClient3 *iface);
extern HRESULT WINAPI client_Stop(IAudioClient3 *iface);
extern HRESULT WINAPI client_Reset(IAudioClient3 *iface);
extern HRESULT WINAPI client_SetEventHandle(IAudioClient3 *iface,
HANDLE event);
extern HRESULT WINAPI client_GetService(IAudioClient3 *iface, REFIID riid,
void **ppv);
extern HRESULT WINAPI client_IsOffloadCapable(IAudioClient3 *iface,
AUDIO_STREAM_CATEGORY category, BOOL *offload_capable);
extern HRESULT WINAPI client_SetClientProperties(IAudioClient3 *iface,
const AudioClientProperties *prop);
extern HRESULT WINAPI client_GetBufferSizeLimits(IAudioClient3 *iface,
const WAVEFORMATEX *format, BOOL event_driven, REFERENCE_TIME *min_duration,
REFERENCE_TIME *max_duration);
extern HRESULT WINAPI client_GetSharedModeEnginePeriod(IAudioClient3 *iface,
const WAVEFORMATEX *format, UINT32 *default_period_frames, UINT32 *unit_period_frames,
UINT32 *min_period_frames, UINT32 *max_period_frames);
extern HRESULT WINAPI client_GetCurrentSharedModeEnginePeriod(IAudioClient3 *iface,
WAVEFORMATEX **cur_format, UINT32 *cur_period_frames);
extern HRESULT WINAPI client_InitializeSharedAudioStream(IAudioClient3 *iface,
DWORD flags, UINT32 period_frames, const WAVEFORMATEX *format,
const GUID *session_guid);
static const IAudioClient3Vtbl AudioClient3_Vtbl =
{
client_QueryInterface,
client_AddRef,
client_Release,
client_Initialize,
client_GetBufferSize,
client_GetStreamLatency,
client_GetCurrentPadding,
client_IsFormatSupported,
client_GetMixFormat,
client_GetDevicePeriod,
client_Start,
client_Stop,
client_Reset,
client_SetEventHandle,
client_GetService,
client_IsOffloadCapable,
client_SetClientProperties,
client_GetBufferSizeLimits,
client_GetSharedModeEnginePeriod,
client_GetCurrentSharedModeEnginePeriod,
client_InitializeSharedAudioStream,
};
HRESULT WINAPI AUDDRV_GetAudioSessionWrapper(const GUID *guid, IMMDevice *device,
AudioSessionWrapper **out)
{
AudioSession *session;
HRESULT hr = get_audio_session(guid, device, 0, &session);
if(FAILED(hr))
return hr;
*out = session_wrapper_create(NULL);
if(!*out)
return E_OUTOFMEMORY;
(*out)->session = session;
return S_OK;
}
HRESULT WINAPI AUDDRV_GetPropValue(GUID *guid, const PROPERTYKEY *prop, PROPVARIANT *out)
{
struct get_prop_value_params params;
char pulse_name[MAX_PULSE_NAME_LEN];
unsigned int size = 0;
TRACE("%s, (%s,%lu), %p\n", wine_dbgstr_guid(guid), wine_dbgstr_guid(&prop->fmtid), prop->pid, out);
if (!get_pulse_name_by_guid(guid, pulse_name, &params.flow))
return E_FAIL;
params.device = pulse_name;
params.guid = guid;
params.prop = prop;
params.value = out;
params.buffer = NULL;
params.buffer_size = &size;
while(1) {
pulse_call(get_prop_value, &params);
if(params.result != E_NOT_SUFFICIENT_BUFFER)
break;
CoTaskMemFree(params.buffer);
params.buffer = CoTaskMemAlloc(*params.buffer_size);
if(!params.buffer)
return E_OUTOFMEMORY;
}
if(FAILED(params.result))
CoTaskMemFree(params.buffer);
return params.result;
}
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