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Sweden-Number/dlls/winealsa.drv/mmdevdrv.c

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/*
* Copyright 2010 Maarten Lankhorst for CodeWeavers
* Copyright 2011 Andrew Eikum for CodeWeavers
*
* 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 <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 "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>
WINE_DEFAULT_DEBUG_CHANNEL(alsa);
WINE_DECLARE_DEBUG_CHANNEL(winediag);
#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;
CRITICAL_SECTION lock;
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 {
IAudioClient IAudioClient_iface;
IAudioRenderClient IAudioRenderClient_iface;
IAudioCaptureClient IAudioCaptureClient_iface;
IAudioClock IAudioClock_iface;
IAudioClock2 IAudioClock2_iface;
IAudioStreamVolume IAudioStreamVolume_iface;
LONG ref;
snd_pcm_t *pcm_handle;
snd_pcm_uframes_t alsa_bufsize_frames, alsa_period_frames, safe_rewind_frames;
snd_pcm_hw_params_t *hw_params; /* does not hold state between calls */
snd_pcm_format_t alsa_format;
LARGE_INTEGER last_period_time;
IMMDevice *parent;
IUnknown *pUnkFTMarshal;
EDataFlow dataflow;
WAVEFORMATEX *fmt;
DWORD flags;
AUDCLNT_SHAREMODE share;
HANDLE event;
float *vols;
BOOL need_remapping;
int alsa_channels;
int alsa_channel_map[32];
BOOL initted, started;
REFERENCE_TIME mmdev_period_rt;
UINT64 written_frames, last_pos_frames;
UINT32 bufsize_frames, held_frames, tmp_buffer_frames, mmdev_period_frames;
snd_pcm_uframes_t remapping_buf_frames;
UINT32 lcl_offs_frames; /* offs into local_buffer where valid data starts */
UINT32 wri_offs_frames; /* where to write fresh data in local_buffer */
UINT32 hidden_frames; /* ALSA reserve to ensure continuous rendering */
UINT32 data_in_alsa_frames;
HANDLE timer;
BYTE *local_buffer, *tmp_buffer, *remapping_buf, *silence_buf;
LONG32 getbuf_last; /* <0 when using tmp_buffer */
CRITICAL_SECTION lock;
AudioSession *session;
AudioSessionWrapper *session_wrapper;
struct list entry;
};
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 defaultW[] = {'d','e','f','a','u','l','t',0};
static const char defname[] = "default";
static const WCHAR drv_keyW[] = {'S','o','f','t','w','a','r','e','\\',
'W','i','n','e','\\','D','r','i','v','e','r','s','\\',
'w','i','n','e','a','l','s','a','.','d','r','v',0};
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 IAudioClientVtbl AudioClient_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_IAudioClient(IAudioClient *iface)
{
return CONTAINING_RECORD(iface, ACImpl, IAudioClient_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:
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,
(sizeof(key_name) / sizeof(*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 BOOL alsa_try_open(const char *devnode, snd_pcm_stream_t stream)
{
snd_pcm_t *handle;
int err;
TRACE("devnode: %s, stream: %d\n", devnode, stream);
if((err = snd_pcm_open(&handle, devnode, stream, SND_PCM_NONBLOCK)) < 0){
WARN("The device \"%s\" failed to open: %d (%s).\n",
devnode, err, snd_strerror(err));
return FALSE;
}
snd_pcm_close(handle);
return TRUE;
}
static WCHAR *construct_device_id(EDataFlow flow, const WCHAR *chunk1, const char *chunk2)
{
WCHAR *ret;
const WCHAR *prefix;
DWORD len_wchars = 0, chunk1_len, copied = 0, prefix_len;
static const WCHAR dashW[] = {' ','-',' ',0};
static const size_t dashW_len = (sizeof(dashW) / sizeof(*dashW)) - 1;
static const WCHAR outW[] = {'O','u','t',':',' ',0};
static const WCHAR inW[] = {'I','n',':',' ',0};
if(flow == eRender){
prefix = outW;
prefix_len = (sizeof(outW) / sizeof(*outW)) - 1;
len_wchars += prefix_len;
}else{
prefix = inW;
prefix_len = (sizeof(inW) / sizeof(*inW)) - 1;
len_wchars += prefix_len;
}
if(chunk1){
chunk1_len = strlenW(chunk1);
len_wchars += chunk1_len;
}
if(chunk1 && chunk2)
len_wchars += dashW_len;
if(chunk2)
len_wchars += MultiByteToWideChar(CP_UNIXCP, 0, chunk2, -1, NULL, 0) - 1;
len_wchars += 1; /* NULL byte */
ret = HeapAlloc(GetProcessHeap(), 0, len_wchars * sizeof(WCHAR));
memcpy(ret, prefix, prefix_len * sizeof(WCHAR));
copied += prefix_len;
if(chunk1){
memcpy(ret + copied, chunk1, chunk1_len * sizeof(WCHAR));
copied += chunk1_len;
}
if(chunk1 && chunk2){
memcpy(ret + copied, dashW, dashW_len * sizeof(WCHAR));
copied += dashW_len;
}
if(chunk2){
MultiByteToWideChar(CP_UNIXCP, 0, chunk2, -1, ret + copied, len_wchars - copied);
}else
ret[copied] = 0;
TRACE("Enumerated device: %s\n", wine_dbgstr_w(ret));
return ret;
}
static HRESULT alsa_get_card_devices(EDataFlow flow, snd_pcm_stream_t stream,
WCHAR ***ids, GUID **guids, UINT *num, snd_ctl_t *ctl, int card,
const WCHAR *cardnameW)
{
int err, device;
snd_pcm_info_t *info;
info = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, snd_pcm_info_sizeof());
if(!info)
return E_OUTOFMEMORY;
snd_pcm_info_set_subdevice(info, 0);
snd_pcm_info_set_stream(info, stream);
device = -1;
for(err = snd_ctl_pcm_next_device(ctl, &device); device != -1 && err >= 0;
err = snd_ctl_pcm_next_device(ctl, &device)){
const char *devname;
char devnode[32];
snd_pcm_info_set_device(info, device);
if((err = snd_ctl_pcm_info(ctl, info)) < 0){
if(err == -ENOENT)
/* This device doesn't have the right stream direction */
continue;
WARN("Failed to get info for card %d, device %d: %d (%s)\n",
card, device, err, snd_strerror(err));
continue;
}
sprintf(devnode, "plughw:%d,%d", card, device);
if(!alsa_try_open(devnode, stream))
continue;
if(*num){
*ids = HeapReAlloc(GetProcessHeap(), 0, *ids, sizeof(WCHAR *) * (*num + 1));
*guids = HeapReAlloc(GetProcessHeap(), 0, *guids, sizeof(GUID) * (*num + 1));
}else{
*ids = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR *));
*guids = HeapAlloc(GetProcessHeap(), 0, sizeof(GUID));
}
devname = snd_pcm_info_get_name(info);
if(!devname){
WARN("Unable to get device name for card %d, device %d\n", card,
device);
continue;
}
(*ids)[*num] = construct_device_id(flow, cardnameW, devname);
get_device_guid(flow, devnode, &(*guids)[*num]);
++(*num);
}
HeapFree(GetProcessHeap(), 0, info);
if(err != 0)
WARN("Got a failure during device enumeration on card %d: %d (%s)\n",
card, err, snd_strerror(err));
return S_OK;
}
static void get_reg_devices(EDataFlow flow, snd_pcm_stream_t stream, WCHAR ***ids,
GUID **guids, UINT *num)
{
static const WCHAR ALSAOutputDevices[] = {'A','L','S','A','O','u','t','p','u','t','D','e','v','i','c','e','s',0};
static const WCHAR ALSAInputDevices[] = {'A','L','S','A','I','n','p','u','t','D','e','v','i','c','e','s',0};
HKEY key;
WCHAR reg_devices[256];
DWORD size = sizeof(reg_devices), type;
const WCHAR *value_name = (stream == SND_PCM_STREAM_PLAYBACK) ? ALSAOutputDevices : ALSAInputDevices;
/* @@ Wine registry key: HKCU\Software\Wine\Drivers\winealsa.drv */
if(RegOpenKeyW(HKEY_CURRENT_USER, drv_keyW, &key) == ERROR_SUCCESS){
if(RegQueryValueExW(key, value_name, 0, &type,
(BYTE*)reg_devices, &size) == ERROR_SUCCESS){
WCHAR *p = reg_devices;
if(type != REG_MULTI_SZ){
ERR("Registry ALSA device list value type must be REG_MULTI_SZ\n");
RegCloseKey(key);
return;
}
while(*p){
char devname[64];
WideCharToMultiByte(CP_UNIXCP, 0, p, -1, devname, sizeof(devname), NULL, NULL);
if(alsa_try_open(devname, stream)){
if(*num){
*ids = HeapReAlloc(GetProcessHeap(), 0, *ids, sizeof(WCHAR *) * (*num + 1));
*guids = HeapReAlloc(GetProcessHeap(), 0, *guids, sizeof(GUID) * (*num + 1));
}else{
*ids = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR *));
*guids = HeapAlloc(GetProcessHeap(), 0, sizeof(GUID));
}
(*ids)[*num] = construct_device_id(flow, p, NULL);
get_device_guid(flow, devname, &(*guids)[*num]);
++*num;
}
p += lstrlenW(p) + 1;
}
}
RegCloseKey(key);
}
}
static HRESULT alsa_enum_devices(EDataFlow flow, WCHAR ***ids, GUID **guids,
UINT *num)
{
snd_pcm_stream_t stream = (flow == eRender ? SND_PCM_STREAM_PLAYBACK :
SND_PCM_STREAM_CAPTURE);
int err, card;
card = -1;
*num = 0;
if(alsa_try_open(defname, stream)){
*ids = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR *));
(*ids)[0] = construct_device_id(flow, defaultW, NULL);
*guids = HeapAlloc(GetProcessHeap(), 0, sizeof(GUID));
get_device_guid(flow, defname, &(*guids)[0]);
++*num;
}
get_reg_devices(flow, stream, ids, guids, num);
for(err = snd_card_next(&card); card != -1 && err >= 0;
err = snd_card_next(&card)){
char cardpath[64];
char *cardname;
WCHAR *cardnameW;
snd_ctl_t *ctl;
DWORD len;
sprintf(cardpath, "hw:%u", card);
if((err = snd_ctl_open(&ctl, cardpath, 0)) < 0){
WARN("Unable to open ctl for ALSA device %s: %d (%s)\n", cardpath,
err, snd_strerror(err));
continue;
}
if(snd_card_get_name(card, &cardname) < 0) {
/* FIXME: Should be localized */
static const WCHAR nameW[] = {'U','n','k','n','o','w','n',' ','s','o','u','n','d','c','a','r','d',0};
WARN("Unable to get card name for ALSA device %s: %d (%s)\n",
cardpath, err, snd_strerror(err));
alsa_get_card_devices(flow, stream, ids, guids, num, ctl, card, nameW);
}else{
len = MultiByteToWideChar(CP_UNIXCP, 0, cardname, -1, NULL, 0);
cardnameW = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
if(!cardnameW){
free(cardname);
snd_ctl_close(ctl);
return E_OUTOFMEMORY;
}
MultiByteToWideChar(CP_UNIXCP, 0, cardname, -1, cardnameW, len);
alsa_get_card_devices(flow, stream, ids, guids, num, ctl, card, cardnameW);
HeapFree(GetProcessHeap(), 0, cardnameW);
free(cardname);
}
snd_ctl_close(ctl);
}
if(err != 0)
WARN("Got a failure during card enumeration: %d (%s)\n",
err, snd_strerror(err));
return S_OK;
}
HRESULT WINAPI AUDDRV_GetEndpointIDs(EDataFlow flow, WCHAR ***ids, GUID **guids,
UINT *num, UINT *def_index)
{
HRESULT hr;
TRACE("%d %p %p %p %p\n", flow, ids, guids, num, def_index);
*ids = NULL;
*guids = NULL;
hr = alsa_enum_devices(flow, ids, guids, num);
if(FAILED(hr)){
UINT i;
for(i = 0; i < *num; ++i)
HeapFree(GetProcessHeap(), 0, (*ids)[i]);
HeapFree(GetProcessHeap(), 0, *ids);
HeapFree(GetProcessHeap(), 0, *guids);
return E_OUTOFMEMORY;
}
TRACE("Enumerated %u devices\n", *num);
if(*num == 0){
HeapFree(GetProcessHeap(), 0, *ids);
*ids = NULL;
HeapFree(GetProcessHeap(), 0, *guids);
*guids = NULL;
}
*def_index = 0;
return S_OK;
}
/* Using the pulse PCM device from alsa-plugins 1.0.24 triggers a bug
* which causes audio to cease playing after a few minutes of playback.
* Setting handle_underrun=1 on pulse-backed ALSA devices seems to work
* around this issue. */
static snd_config_t *make_handle_underrun_config(const char *name)
{
snd_config_t *lconf, *dev_node, *hu_node, *type_node;
char dev_node_name[64];
const char *type_str;
int err;
snd_config_update();
if((err = snd_config_copy(&lconf, snd_config)) < 0){
WARN("snd_config_copy failed: %d (%s)\n", err, snd_strerror(err));
return NULL;
}
sprintf(dev_node_name, "pcm.%s", name);
err = snd_config_search(lconf, dev_node_name, &dev_node);
if(err == -ENOENT){
snd_config_delete(lconf);
return NULL;
}
if(err < 0){
snd_config_delete(lconf);
WARN("snd_config_search failed: %d (%s)\n", err, snd_strerror(err));
return NULL;
}
/* ALSA is extremely fragile. If it runs into a config setting it doesn't
* recognize, it tends to fail or assert. So we only want to inject
* handle_underrun=1 on devices that we know will recognize it. */
err = snd_config_search(dev_node, "type", &type_node);
if(err == -ENOENT){
snd_config_delete(lconf);
return NULL;
}
if(err < 0){
snd_config_delete(lconf);
WARN("snd_config_search failed: %d (%s)\n", err, snd_strerror(err));
return NULL;
}
if((err = snd_config_get_string(type_node, &type_str)) < 0){
snd_config_delete(lconf);
return NULL;
}
if(strcmp(type_str, "pulse") != 0){
snd_config_delete(lconf);
return NULL;
}
err = snd_config_search(dev_node, "handle_underrun", &hu_node);
if(err >= 0){
/* user already has an explicit handle_underrun setting, so don't
* use a local config */
snd_config_delete(lconf);
return NULL;
}
if(err != -ENOENT){
snd_config_delete(lconf);
WARN("snd_config_search failed: %d (%s)\n", err, snd_strerror(err));
return NULL;
}
if((err = snd_config_imake_integer(&hu_node, "handle_underrun", 1)) < 0){
snd_config_delete(lconf);
WARN("snd_config_imake_integer failed: %d (%s)\n", err,
snd_strerror(err));
return NULL;
}
if((err = snd_config_add(dev_node, hu_node)) < 0){
snd_config_delete(lconf);
WARN("snd_config_add failed: %d (%s)\n", err, snd_strerror(err));
return NULL;
}
return lconf;
}
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 = sizeof(key_name)/sizeof(WCHAR);
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;
}
HRESULT WINAPI AUDDRV_GetAudioEndpoint(GUID *guid, IMMDevice *dev, IAudioClient **out)
{
ACImpl *This;
int err;
snd_pcm_stream_t stream;
snd_config_t *lconf;
static BOOL handle_underrun = TRUE;
char alsa_name[256];
EDataFlow dataflow;
HRESULT hr;
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;
This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(ACImpl));
if(!This)
return E_OUTOFMEMORY;
This->IAudioClient_iface.lpVtbl = &AudioClient_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;
if(dataflow == eRender)
stream = SND_PCM_STREAM_PLAYBACK;
else if(dataflow == eCapture)
stream = SND_PCM_STREAM_CAPTURE;
else{
HeapFree(GetProcessHeap(), 0, This);
return E_UNEXPECTED;
}
hr = CoCreateFreeThreadedMarshaler((IUnknown *)&This->IAudioClient_iface,
(IUnknown **)&This->pUnkFTMarshal);
if (FAILED(hr)) {
HeapFree(GetProcessHeap(), 0, This);
return hr;
}
This->dataflow = dataflow;
if(handle_underrun && ((lconf = make_handle_underrun_config(alsa_name)))){
err = snd_pcm_open_lconf(&This->pcm_handle, alsa_name, stream, SND_PCM_NONBLOCK, lconf);
TRACE("Opening PCM device \"%s\" with handle_underrun: %d\n", alsa_name, err);
snd_config_delete(lconf);
/* Pulse <= 2010 returns EINVAL, it does not know handle_underrun. */
if(err == -EINVAL){
ERR_(winediag)("PulseAudio \"%s\" %d without handle_underrun. Audio may hang."
" Please upgrade to alsa_plugins >= 1.0.24\n", alsa_name, err);
handle_underrun = FALSE;
}
}else
err = -EINVAL;
if(err == -EINVAL){
err = snd_pcm_open(&This->pcm_handle, alsa_name, stream, SND_PCM_NONBLOCK);
}
if(err < 0){
HeapFree(GetProcessHeap(), 0, This);
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;
}
}
This->hw_params = HeapAlloc(GetProcessHeap(), 0,
snd_pcm_hw_params_sizeof());
if(!This->hw_params){
snd_pcm_close(This->pcm_handle);
HeapFree(GetProcessHeap(), 0, This);
return E_OUTOFMEMORY;
}
InitializeCriticalSection(&This->lock);
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": ACImpl.lock");
This->parent = dev;
IMMDevice_AddRef(This->parent);
*out = &This->IAudioClient_iface;
IAudioClient_AddRef(&This->IAudioClient_iface);
return S_OK;
}
static HRESULT WINAPI AudioClient_QueryInterface(IAudioClient *iface,
REFIID riid, void **ppv)
{
ACImpl *This = impl_from_IAudioClient(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))
*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(IAudioClient *iface)
{
ACImpl *This = impl_from_IAudioClient(iface);
ULONG ref;
ref = InterlockedIncrement(&This->ref);
TRACE("(%p) Refcount now %u\n", This, ref);
return ref;
}
static ULONG WINAPI AudioClient_Release(IAudioClient *iface)
{
ACImpl *This = impl_from_IAudioClient(iface);
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);
}
IAudioClient_Stop(iface);
IMMDevice_Release(This->parent);
IUnknown_Release(This->pUnkFTMarshal);
This->lock.DebugInfo->Spare[0] = 0;
DeleteCriticalSection(&This->lock);
snd_pcm_drop(This->pcm_handle);
snd_pcm_close(This->pcm_handle);
if(This->initted){
EnterCriticalSection(&g_sessions_lock);
list_remove(&This->entry);
LeaveCriticalSection(&g_sessions_lock);
}
HeapFree(GetProcessHeap(), 0, This->vols);
HeapFree(GetProcessHeap(), 0, This->local_buffer);
HeapFree(GetProcessHeap(), 0, This->remapping_buf);
HeapFree(GetProcessHeap(), 0, This->silence_buf);
HeapFree(GetProcessHeap(), 0, This->tmp_buffer);
HeapFree(GetProcessHeap(), 0, This->hw_params);
CoTaskMemFree(This->fmt);
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);
InitializeCriticalSection(&ret->lock);
ret->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": AudioSession.lock");
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(ACImpl *This, BYTE *buffer, UINT32 frames)
{
WAVEFORMATEXTENSIBLE *fmtex = (WAVEFORMATEXTENSIBLE*)This->fmt;
if((This->fmt->wFormatTag == WAVE_FORMAT_PCM ||
(This->fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
IsEqualGUID(&fmtex->SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))) &&
This->fmt->wBitsPerSample == 8)
memset(buffer, 128, frames * This->fmt->nBlockAlign);
else
memset(buffer, 0, frames * This->fmt->nBlockAlign);
}
static HRESULT WINAPI AudioClient_Initialize(IAudioClient *iface,
AUDCLNT_SHAREMODE mode, DWORD flags, REFERENCE_TIME duration,
REFERENCE_TIME period, const WAVEFORMATEX *fmt,
const GUID *sessionguid)
{
ACImpl *This = impl_from_IAudioClient(iface);
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 AUDCLNT_E_NOT_INITIALIZED;
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)){
TRACE("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(&This->lock);
if(This->initted){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_ALREADY_INITIALIZED;
}
dump_fmt(fmt);
This->need_remapping = map_channels(This, fmt, &This->alsa_channels, This->alsa_channel_map) == S_OK;
if((err = snd_pcm_hw_params_any(This->pcm_handle, This->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(This->pcm_handle, This->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(This->pcm_handle, This->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;
}
This->alsa_format = format;
rate = fmt->nSamplesPerSec;
if((err = snd_pcm_hw_params_set_rate_near(This->pcm_handle, This->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(This->pcm_handle, This->hw_params,
This->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;
}
This->mmdev_period_rt = period;
alsa_period_us = This->mmdev_period_rt / 10;
if((err = snd_pcm_hw_params_set_period_time_near(This->pcm_handle,
This->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 */
This->mmdev_period_frames = MulDiv(fmt->nSamplesPerSec,
This->mmdev_period_rt, 10000000);
/* Buffer 4 ALSA periods if large enough, else 4 mmdevapi periods */
This->alsa_bufsize_frames = This->mmdev_period_frames * 4;
if(err < 0 || alsa_period_us < period / 10)
err = snd_pcm_hw_params_set_buffer_size_near(This->pcm_handle,
This->hw_params, &This->alsa_bufsize_frames);
else{
unsigned int periods = 4;
err = snd_pcm_hw_params_set_periods_near(This->pcm_handle, This->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(This->pcm_handle, This->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(This->hw_params,
&This->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(This->hw_params,
&This->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(This->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(This->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(This->pcm_handle,
sw_params, This->alsa_bufsize_frames)) < 0){
WARN("Unable set stop threshold to %lu: %d (%s)\n",
This->alsa_bufsize_frames, err, snd_strerror(err));
hr = AUDCLNT_E_ENDPOINT_CREATE_FAILED;
goto exit;
}
if((err = snd_pcm_sw_params(This->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(This->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! */
This->bufsize_frames = MulDiv(duration, fmt->nSamplesPerSec, 10000000);
if(mode == AUDCLNT_SHAREMODE_EXCLUSIVE)
This->bufsize_frames -= This->bufsize_frames % This->mmdev_period_frames;
This->hidden_frames = This->alsa_period_frames + This->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 */
This->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(This->alsa_bufsize_frames < 1.2 * This->mmdev_period_frames)
FIXME("ALSA buffer time is too small. Expect underruns. (%lu < %u * 1.2)\n",
This->alsa_bufsize_frames, This->mmdev_period_frames);
This->fmt = clone_format(fmt);
if(!This->fmt){
hr = E_OUTOFMEMORY;
goto exit;
}
This->local_buffer = HeapAlloc(GetProcessHeap(), 0,
This->bufsize_frames * fmt->nBlockAlign);
if(!This->local_buffer){
hr = E_OUTOFMEMORY;
goto exit;
}
silence_buffer(This, This->local_buffer, This->bufsize_frames);
This->silence_buf = HeapAlloc(GetProcessHeap(), 0,
This->alsa_period_frames * This->fmt->nBlockAlign);
if(!This->silence_buf){
hr = E_OUTOFMEMORY;
goto exit;
}
silence_buffer(This, This->silence_buf, This->alsa_period_frames);
This->vols = HeapAlloc(GetProcessHeap(), 0, fmt->nChannels * sizeof(float));
if(!This->vols){
hr = E_OUTOFMEMORY;
goto exit;
}
for(i = 0; i < fmt->nChannels; ++i)
This->vols[i] = 1.f;
This->share = mode;
This->flags = flags;
EnterCriticalSection(&g_sessions_lock);
hr = get_audio_session(sessionguid, This->parent, fmt->nChannels,
&This->session);
if(FAILED(hr)){
LeaveCriticalSection(&g_sessions_lock);
goto exit;
}
list_add_tail(&This->session->clients, &This->entry);
LeaveCriticalSection(&g_sessions_lock);
This->initted = TRUE;
TRACE("ALSA period: %lu frames\n", This->alsa_period_frames);
TRACE("ALSA buffer: %lu frames\n", This->alsa_bufsize_frames);
TRACE("MMDevice period: %u frames\n", This->mmdev_period_frames);
TRACE("MMDevice buffer: %u frames\n", This->bufsize_frames);
exit:
HeapFree(GetProcessHeap(), 0, sw_params);
if(FAILED(hr)){
HeapFree(GetProcessHeap(), 0, This->local_buffer);
This->local_buffer = NULL;
CoTaskMemFree(This->fmt);
This->fmt = NULL;
HeapFree(GetProcessHeap(), 0, This->vols);
This->vols = NULL;
}
LeaveCriticalSection(&This->lock);
return hr;
}
static HRESULT WINAPI AudioClient_GetBufferSize(IAudioClient *iface,
UINT32 *out)
{
ACImpl *This = impl_from_IAudioClient(iface);
TRACE("(%p)->(%p)\n", This, out);
if(!out)
return E_POINTER;
EnterCriticalSection(&This->lock);
if(!This->initted){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_NOT_INITIALIZED;
}
*out = This->bufsize_frames;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static HRESULT WINAPI AudioClient_GetStreamLatency(IAudioClient *iface,
REFERENCE_TIME *latency)
{
ACImpl *This = impl_from_IAudioClient(iface);
TRACE("(%p)->(%p)\n", This, latency);
if(!latency)
return E_POINTER;
EnterCriticalSection(&This->lock);
if(!This->initted){
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(This->hidden_frames, 10000000, This->fmt->nSamplesPerSec);
else
*latency = MulDiv(This->alsa_period_frames, 10000000, This->fmt->nSamplesPerSec)
+ This->mmdev_period_rt;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static HRESULT WINAPI AudioClient_GetCurrentPadding(IAudioClient *iface,
UINT32 *out)
{
ACImpl *This = impl_from_IAudioClient(iface);
TRACE("(%p)->(%p)\n", This, out);
if(!out)
return E_POINTER;
EnterCriticalSection(&This->lock);
if(!This->initted){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_NOT_INITIALIZED;
}
/* padding is solely updated at callback time in shared mode */
*out = This->held_frames;
LeaveCriticalSection(&This->lock);
TRACE("pad: %u\n", *out);
return S_OK;
}
static HRESULT WINAPI AudioClient_IsFormatSupported(IAudioClient *iface,
AUDCLNT_SHAREMODE mode, const WAVEFORMATEX *fmt,
WAVEFORMATEX **out)
{
ACImpl *This = impl_from_IAudioClient(iface);
snd_pcm_format_mask_t *formats = NULL;
snd_pcm_format_t format;
HRESULT hr = S_OK;
WAVEFORMATEX *closest = NULL;
unsigned int max = 0, min = 0;
int err;
int alsa_channels, alsa_channel_map[32];
TRACE("(%p)->(%x, %p, %p)\n", This, mode, fmt, out);
if(!fmt || (mode == AUDCLNT_SHAREMODE_SHARED && !out))
return E_POINTER;
if(mode != AUDCLNT_SHAREMODE_SHARED && mode != AUDCLNT_SHAREMODE_EXCLUSIVE)
return E_INVALIDARG;
if(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
fmt->cbSize < sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX))
return E_INVALIDARG;
dump_fmt(fmt);
if(out){
*out = NULL;
if(mode != AUDCLNT_SHAREMODE_SHARED)
out = NULL;
}
if(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
(fmt->nAvgBytesPerSec == 0 ||
fmt->nBlockAlign == 0 ||
((WAVEFORMATEXTENSIBLE*)fmt)->Samples.wValidBitsPerSample > fmt->wBitsPerSample))
return E_INVALIDARG;
if(fmt->nChannels == 0)
return AUDCLNT_E_UNSUPPORTED_FORMAT;
EnterCriticalSection(&This->lock);
if((err = snd_pcm_hw_params_any(This->pcm_handle, This->hw_params)) < 0){
hr = AUDCLNT_E_DEVICE_INVALIDATED;
goto exit;
}
formats = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
snd_pcm_format_mask_sizeof());
if(!formats){
hr = E_OUTOFMEMORY;
goto exit;
}
snd_pcm_hw_params_get_format_mask(This->hw_params, formats);
format = alsa_format(fmt);
if (format == SND_PCM_FORMAT_UNKNOWN ||
!snd_pcm_format_mask_test(formats, format)){
hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
goto exit;
}
closest = clone_format(fmt);
if(!closest){
hr = E_OUTOFMEMORY;
goto exit;
}
if((err = snd_pcm_hw_params_get_rate_min(This->hw_params, &min, NULL)) < 0){
hr = AUDCLNT_E_DEVICE_INVALIDATED;
WARN("Unable to get min rate: %d (%s)\n", err, snd_strerror(err));
goto exit;
}
if((err = snd_pcm_hw_params_get_rate_max(This->hw_params, &max, NULL)) < 0){
hr = AUDCLNT_E_DEVICE_INVALIDATED;
WARN("Unable to get max rate: %d (%s)\n", err, snd_strerror(err));
goto exit;
}
if(fmt->nSamplesPerSec < min || fmt->nSamplesPerSec > max){
hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
goto exit;
}
if((err = snd_pcm_hw_params_get_channels_min(This->hw_params, &min)) < 0){
hr = AUDCLNT_E_DEVICE_INVALIDATED;
WARN("Unable to get min channels: %d (%s)\n", err, snd_strerror(err));
goto exit;
}
if((err = snd_pcm_hw_params_get_channels_max(This->hw_params, &max)) < 0){
hr = AUDCLNT_E_DEVICE_INVALIDATED;
WARN("Unable to get max channels: %d (%s)\n", err, snd_strerror(err));
goto exit;
}
if(fmt->nChannels > max){
hr = S_FALSE;
closest->nChannels = max;
}else if(fmt->nChannels < min){
hr = S_FALSE;
closest->nChannels = min;
}
map_channels(This, fmt, &alsa_channels, alsa_channel_map);
if(alsa_channels > max){
hr = S_FALSE;
closest->nChannels = max;
}
if(closest->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
((WAVEFORMATEXTENSIBLE*)closest)->dwChannelMask = get_channel_mask(closest->nChannels);
if(fmt->nBlockAlign != fmt->nChannels * fmt->wBitsPerSample / 8 ||
fmt->nAvgBytesPerSec != fmt->nBlockAlign * fmt->nSamplesPerSec ||
(fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
((WAVEFORMATEXTENSIBLE*)fmt)->Samples.wValidBitsPerSample < fmt->wBitsPerSample))
hr = S_FALSE;
if(mode == AUDCLNT_SHAREMODE_EXCLUSIVE &&
fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE){
if(((WAVEFORMATEXTENSIBLE*)fmt)->dwChannelMask == 0 ||
((WAVEFORMATEXTENSIBLE*)fmt)->dwChannelMask & SPEAKER_RESERVED)
hr = S_FALSE;
}
exit:
LeaveCriticalSection(&This->lock);
HeapFree(GetProcessHeap(), 0, formats);
if(hr == S_FALSE && !out)
hr = AUDCLNT_E_UNSUPPORTED_FORMAT;
if(hr == S_FALSE && out) {
closest->nBlockAlign =
closest->nChannels * closest->wBitsPerSample / 8;
closest->nAvgBytesPerSec =
closest->nBlockAlign * closest->nSamplesPerSec;
if(closest->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
((WAVEFORMATEXTENSIBLE*)closest)->Samples.wValidBitsPerSample = closest->wBitsPerSample;
*out = closest;
} else
CoTaskMemFree(closest);
TRACE("returning: %08x\n", hr);
return hr;
}
static HRESULT WINAPI AudioClient_GetMixFormat(IAudioClient *iface,
WAVEFORMATEX **pwfx)
{
ACImpl *This = impl_from_IAudioClient(iface);
WAVEFORMATEXTENSIBLE *fmt;
snd_pcm_format_mask_t *formats;
unsigned int max_rate, max_channels;
int err;
HRESULT hr = S_OK;
TRACE("(%p)->(%p)\n", This, pwfx);
if(!pwfx)
return E_POINTER;
*pwfx = NULL;
fmt = CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
if(!fmt)
return E_OUTOFMEMORY;
formats = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, snd_pcm_format_mask_sizeof());
if(!formats){
CoTaskMemFree(fmt);
return E_OUTOFMEMORY;
}
EnterCriticalSection(&This->lock);
if((err = snd_pcm_hw_params_any(This->pcm_handle, This->hw_params)) < 0){
WARN("Unable to get hw_params: %d (%s)\n", err, snd_strerror(err));
hr = AUDCLNT_E_DEVICE_INVALIDATED;
goto exit;
}
snd_pcm_hw_params_get_format_mask(This->hw_params, formats);
fmt->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
if(snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_FLOAT_LE)){
fmt->Format.wBitsPerSample = 32;
fmt->SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
}else if(snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_S16_LE)){
fmt->Format.wBitsPerSample = 16;
fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
}else if(snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_U8)){
fmt->Format.wBitsPerSample = 8;
fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
}else if(snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_S32_LE)){
fmt->Format.wBitsPerSample = 32;
fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
}else if(snd_pcm_format_mask_test(formats, SND_PCM_FORMAT_S24_3LE)){
fmt->Format.wBitsPerSample = 24;
fmt->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
}else{
ERR("Didn't recognize any available ALSA formats\n");
hr = AUDCLNT_E_DEVICE_INVALIDATED;
goto exit;
}
if((err = snd_pcm_hw_params_get_channels_max(This->hw_params,
&max_channels)) < 0){
WARN("Unable to get max channels: %d (%s)\n", err, snd_strerror(err));
hr = AUDCLNT_E_DEVICE_INVALIDATED;
goto exit;
}
if(max_channels > 6)
fmt->Format.nChannels = 6;
else
fmt->Format.nChannels = max_channels;
fmt->dwChannelMask = get_channel_mask(fmt->Format.nChannels);
if((err = snd_pcm_hw_params_get_rate_max(This->hw_params, &max_rate,
NULL)) < 0){
WARN("Unable to get max rate: %d (%s)\n", err, snd_strerror(err));
hr = AUDCLNT_E_DEVICE_INVALIDATED;
goto exit;
}
if(max_rate >= 48000)
fmt->Format.nSamplesPerSec = 48000;
else if(max_rate >= 44100)
fmt->Format.nSamplesPerSec = 44100;
else if(max_rate >= 22050)
fmt->Format.nSamplesPerSec = 22050;
else if(max_rate >= 11025)
fmt->Format.nSamplesPerSec = 11025;
else if(max_rate >= 8000)
fmt->Format.nSamplesPerSec = 8000;
else{
ERR("Unknown max rate: %u\n", max_rate);
hr = AUDCLNT_E_DEVICE_INVALIDATED;
goto exit;
}
fmt->Format.nBlockAlign = (fmt->Format.wBitsPerSample *
fmt->Format.nChannels) / 8;
fmt->Format.nAvgBytesPerSec = fmt->Format.nSamplesPerSec *
fmt->Format.nBlockAlign;
fmt->Samples.wValidBitsPerSample = fmt->Format.wBitsPerSample;
fmt->Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX);
dump_fmt((WAVEFORMATEX*)fmt);
*pwfx = (WAVEFORMATEX*)fmt;
exit:
LeaveCriticalSection(&This->lock);
if(FAILED(hr))
CoTaskMemFree(fmt);
HeapFree(GetProcessHeap(), 0, formats);
return hr;
}
static HRESULT WINAPI AudioClient_GetDevicePeriod(IAudioClient *iface,
REFERENCE_TIME *defperiod, REFERENCE_TIME *minperiod)
{
ACImpl *This = impl_from_IAudioClient(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(ACImpl *This, BYTE *buf, snd_pcm_uframes_t frames)
{
snd_pcm_uframes_t i;
UINT c;
UINT bytes_per_sample = This->fmt->wBitsPerSample / 8;
if(!This->need_remapping)
return buf;
if(!This->remapping_buf){
This->remapping_buf = HeapAlloc(GetProcessHeap(), 0,
bytes_per_sample * This->alsa_channels * frames);
This->remapping_buf_frames = frames;
}else if(This->remapping_buf_frames < frames){
This->remapping_buf = HeapReAlloc(GetProcessHeap(), 0, This->remapping_buf,
bytes_per_sample * This->alsa_channels * frames);
This->remapping_buf_frames = frames;
}
snd_pcm_format_set_silence(This->alsa_format, This->remapping_buf,
frames * This->alsa_channels);
switch(This->fmt->wBitsPerSample){
case 8: {
UINT8 *tgt_buf, *src_buf;
tgt_buf = This->remapping_buf;
src_buf = buf;
for(i = 0; i < frames; ++i){
for(c = 0; c < This->fmt->nChannels; ++c)
tgt_buf[This->alsa_channel_map[c]] = src_buf[c];
tgt_buf += This->alsa_channels;
src_buf += This->fmt->nChannels;
}
break;
}
case 16: {
UINT16 *tgt_buf, *src_buf;
tgt_buf = (UINT16*)This->remapping_buf;
src_buf = (UINT16*)buf;
for(i = 0; i < frames; ++i){
for(c = 0; c < This->fmt->nChannels; ++c)
tgt_buf[This->alsa_channel_map[c]] = src_buf[c];
tgt_buf += This->alsa_channels;
src_buf += This->fmt->nChannels;
}
}
break;
case 32: {
UINT32 *tgt_buf, *src_buf;
tgt_buf = (UINT32*)This->remapping_buf;
src_buf = (UINT32*)buf;
for(i = 0; i < frames; ++i){
for(c = 0; c < This->fmt->nChannels; ++c)
tgt_buf[This->alsa_channel_map[c]] = src_buf[c];
tgt_buf += This->alsa_channels;
src_buf += This->fmt->nChannels;
}
}
break;
default: {
BYTE *tgt_buf, *src_buf;
tgt_buf = This->remapping_buf;
src_buf = buf;
for(i = 0; i < frames; ++i){
for(c = 0; c < This->fmt->nChannels; ++c)
memcpy(&tgt_buf[This->alsa_channel_map[c] * bytes_per_sample],
&src_buf[c * bytes_per_sample], bytes_per_sample);
tgt_buf += This->alsa_channels * bytes_per_sample;
src_buf += This->fmt->nChannels * bytes_per_sample;
}
}
break;
}
return This->remapping_buf;
}
static snd_pcm_sframes_t alsa_write_best_effort(ACImpl *This, BYTE *buf,
snd_pcm_uframes_t frames, BOOL mute)
{
snd_pcm_sframes_t written;
if(mute){
int err;
if((err = snd_pcm_format_set_silence(This->alsa_format, buf,
frames * This->fmt->nChannels)) < 0)
WARN("Setting buffer to silence failed: %d (%s)\n", err,
snd_strerror(err));
}
buf = remap_channels(This, buf, frames);
written = snd_pcm_writei(This->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(This->pcm_handle, written, 0);
if(ret < 0){
WARN("Could not recover: %d (%s)\n", ret, snd_strerror(ret));
return ret;
}
written = snd_pcm_writei(This->pcm_handle, buf, frames);
}
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)
{
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 * This->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)
{
UINT32 diff;
diff = buf_ptr_diff(This->lcl_offs_frames, This->wri_offs_frames, This->bufsize_frames);
if(diff)
return diff;
return This->held_frames - This->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)
{
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(This->pcm_handle);
if(snd_pcm_state(This->pcm_handle) == SND_PCM_STATE_XRUN){
TRACE("XRun state, recovering\n");
avail = This->alsa_bufsize_frames;
if((err = snd_pcm_recover(This->pcm_handle, -EPIPE, 1)) < 0)
WARN("snd_pcm_recover failed: %d (%s)\n", err, snd_strerror(err));
if((err = snd_pcm_reset(This->pcm_handle)) < 0)
WARN("snd_pcm_reset failed: %d (%s)\n", err, snd_strerror(err));
if((err = snd_pcm_prepare(This->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(This->data_in_alsa_frames == 0 && This->held_frames < This->alsa_period_frames)
alsa_write_best_effort(This, This->silence_buf, This->alsa_period_frames - This->held_frames, FALSE);
if(This->started)
max_copy_frames = data_not_in_alsa(This);
else
max_copy_frames = 0;
data_frames_played = min(This->data_in_alsa_frames, avail);
This->data_in_alsa_frames -= data_frames_played;
if(This->held_frames > data_frames_played){
if(This->started)
This->held_frames -= data_frames_played;
}else
This->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, This->local_buffer,
This->bufsize_frames, This->lcl_offs_frames, to_write);
if(written <= 0)
break;
avail -= written;
This->lcl_offs_frames += written;
This->lcl_offs_frames %= This->bufsize_frames;
This->data_in_alsa_frames += written;
max_copy_frames -= written;
}
if(This->event)
SetEvent(This->event);
}
static void alsa_read_data(ACImpl *This)
{
snd_pcm_sframes_t nread;
UINT32 pos = This->wri_offs_frames, limit = This->held_frames;
if(!This->started)
goto exit;
/* FIXME: Detect overrun and signal DATA_DISCONTINUITY
* How to count overrun frames and report them as position increase? */
limit = This->bufsize_frames - max(limit, pos);
nread = snd_pcm_readi(This->pcm_handle,
This->local_buffer + pos * This->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(This->pcm_handle, nread, 0);
if(ret < 0){
WARN("Recover failed: %d (%s)\n", ret, snd_strerror(ret));
return;
}
nread = snd_pcm_readi(This->pcm_handle,
This->local_buffer + pos * This->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(This->alsa_format,
This->local_buffer + pos * This->fmt->nBlockAlign,
nread)) < 0)
WARN("Setting buffer to silence failed: %d (%s)\n", err,
snd_strerror(err));
}
This->wri_offs_frames += nread;
This->wri_offs_frames %= This->bufsize_frames;
This->held_frames += nread;
exit:
if(This->event)
SetEvent(This->event);
}
static void CALLBACK alsa_push_buffer_data(void *user, BOOLEAN timer)
{
ACImpl *This = user;
EnterCriticalSection(&This->lock);
QueryPerformanceCounter(&This->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(ACImpl *This)
{
LARGE_INTEGER time_freq, current_time, time_diff;
QueryPerformanceFrequency(&time_freq);
QueryPerformanceCounter(&current_time);
time_diff.QuadPart = current_time.QuadPart - This->last_period_time.QuadPart;
return MulDiv(time_diff.QuadPart, This->fmt->nSamplesPerSec, time_freq.QuadPart);
}
static int alsa_rewind_best_effort(ACImpl *This)
{
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(This) + This->safe_rewind_frames;
if(This->held_frames < leave)
This->held_frames = 0;
else
This->held_frames -= leave;
if(This->data_in_alsa_frames < leave)
len = 0;
else
len = This->data_in_alsa_frames - leave;
TRACE("rewinding %lu frames, now held %u\n", len, This->held_frames);
if(len)
/* snd_pcm_rewind return value is often broken, assume it succeeded */
snd_pcm_rewind(This->pcm_handle, len);
This->data_in_alsa_frames = 0;
return len;
}
static HRESULT WINAPI AudioClient_Start(IAudioClient *iface)
{
ACImpl *This = impl_from_IAudioClient(iface);
TRACE("(%p)\n", This);
EnterCriticalSection(&This->lock);
if(!This->initted){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_NOT_INITIALIZED;
}
if((This->flags & AUDCLNT_STREAMFLAGS_EVENTCALLBACK) && !This->event){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_EVENTHANDLE_NOT_SET;
}
if(This->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(This->pcm_handle, This->local_buffer,
This->bufsize_frames);
}else{
snd_pcm_sframes_t avail, written;
snd_pcm_uframes_t offs;
avail = snd_pcm_avail_update(This->pcm_handle);
avail = min(avail, This->held_frames);
if(This->wri_offs_frames < This->held_frames)
offs = This->bufsize_frames - This->held_frames + This->wri_offs_frames;
else
offs = This->wri_offs_frames - This->held_frames;
/* fill it with data */
written = alsa_write_buffer_wrap(This, This->local_buffer,
This->bufsize_frames, offs, avail);
if(written > 0){
This->lcl_offs_frames = (offs + written) % This->bufsize_frames;
This->data_in_alsa_frames = written;
}else{
This->lcl_offs_frames = offs;
This->data_in_alsa_frames = 0;
}
}
if(!This->timer){
if(!CreateTimerQueueTimer(&This->timer, g_timer_q, alsa_push_buffer_data,
This, 0, This->mmdev_period_rt / 10000, WT_EXECUTEINTIMERTHREAD)){
LeaveCriticalSection(&This->lock);
WARN("Unable to create timer: %u\n", GetLastError());
return E_OUTOFMEMORY;
}
}
This->started = TRUE;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static HRESULT WINAPI AudioClient_Stop(IAudioClient *iface)
{
ACImpl *This = impl_from_IAudioClient(iface);
TRACE("(%p)\n", This);
EnterCriticalSection(&This->lock);
if(!This->initted){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_NOT_INITIALIZED;
}
if(!This->started){
LeaveCriticalSection(&This->lock);
return S_FALSE;
}
if(This->dataflow == eRender)
alsa_rewind_best_effort(This);
This->started = FALSE;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static HRESULT WINAPI AudioClient_Reset(IAudioClient *iface)
{
ACImpl *This = impl_from_IAudioClient(iface);
TRACE("(%p)\n", This);
EnterCriticalSection(&This->lock);
if(!This->initted){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_NOT_INITIALIZED;
}
if(This->started){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_NOT_STOPPED;
}
if(This->getbuf_last){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_BUFFER_OPERATION_PENDING;
}
if(snd_pcm_drop(This->pcm_handle) < 0)
WARN("snd_pcm_drop failed\n");
if(snd_pcm_reset(This->pcm_handle) < 0)
WARN("snd_pcm_reset failed\n");
if(snd_pcm_prepare(This->pcm_handle) < 0)
WARN("snd_pcm_prepare failed\n");
if(This->dataflow == eRender){
This->written_frames = 0;
This->last_pos_frames = 0;
}else{
This->written_frames += This->held_frames;
}
This->held_frames = 0;
This->lcl_offs_frames = 0;
This->wri_offs_frames = 0;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static HRESULT WINAPI AudioClient_SetEventHandle(IAudioClient *iface,
HANDLE event)
{
ACImpl *This = impl_from_IAudioClient(iface);
TRACE("(%p)->(%p)\n", This, event);
if(!event)
return E_INVALIDARG;
EnterCriticalSection(&This->lock);
if(!This->initted){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_NOT_INITIALIZED;
}
if(!(This->flags & AUDCLNT_STREAMFLAGS_EVENTCALLBACK)){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_EVENTHANDLE_NOT_EXPECTED;
}
if (This->event){
LeaveCriticalSection(&This->lock);
FIXME("called twice\n");
return HRESULT_FROM_WIN32(ERROR_INVALID_NAME);
}
This->event = event;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static HRESULT WINAPI AudioClient_GetService(IAudioClient *iface, REFIID riid,
void **ppv)
{
ACImpl *This = impl_from_IAudioClient(iface);
TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppv);
if(!ppv)
return E_POINTER;
*ppv = NULL;
EnterCriticalSection(&This->lock);
if(!This->initted){
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 const IAudioClientVtbl AudioClient_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
};
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->IAudioClient_iface);
}
static ULONG WINAPI AudioRenderClient_Release(IAudioRenderClient *iface)
{
ACImpl *This = impl_from_IAudioRenderClient(iface);
return AudioClient_Release(&This->IAudioClient_iface);
}
static HRESULT WINAPI AudioRenderClient_GetBuffer(IAudioRenderClient *iface,
UINT32 frames, BYTE **data)
{
ACImpl *This = impl_from_IAudioRenderClient(iface);
UINT32 write_pos;
TRACE("(%p)->(%u, %p)\n", This, frames, data);
if(!data)
return E_POINTER;
*data = NULL;
EnterCriticalSection(&This->lock);
if(This->getbuf_last){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_OUT_OF_ORDER;
}
if(!frames){
LeaveCriticalSection(&This->lock);
return S_OK;
}
/* held_frames == GetCurrentPadding_nolock(); */
if(This->held_frames + frames > This->bufsize_frames){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_BUFFER_TOO_LARGE;
}
write_pos = This->wri_offs_frames;
if(write_pos + frames > This->bufsize_frames){
if(This->tmp_buffer_frames < frames){
HeapFree(GetProcessHeap(), 0, This->tmp_buffer);
This->tmp_buffer = HeapAlloc(GetProcessHeap(), 0,
frames * This->fmt->nBlockAlign);
if(!This->tmp_buffer){
LeaveCriticalSection(&This->lock);
return E_OUTOFMEMORY;
}
This->tmp_buffer_frames = frames;
}
*data = This->tmp_buffer;
This->getbuf_last = -frames;
}else{
*data = This->local_buffer + write_pos * This->fmt->nBlockAlign;
This->getbuf_last = frames;
}
silence_buffer(This, *data, frames);
LeaveCriticalSection(&This->lock);
return S_OK;
}
static void alsa_wrap_buffer(ACImpl *This, BYTE *buffer, UINT32 written_frames)
{
snd_pcm_uframes_t write_offs_frames = This->wri_offs_frames;
UINT32 write_offs_bytes = write_offs_frames * This->fmt->nBlockAlign;
snd_pcm_uframes_t chunk_frames = This->bufsize_frames - write_offs_frames;
UINT32 chunk_bytes = chunk_frames * This->fmt->nBlockAlign;
UINT32 written_bytes = written_frames * This->fmt->nBlockAlign;
if(written_bytes <= chunk_bytes){
memcpy(This->local_buffer + write_offs_bytes, buffer, written_bytes);
}else{
memcpy(This->local_buffer + write_offs_bytes, buffer, chunk_bytes);
memcpy(This->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);
BYTE *buffer;
TRACE("(%p)->(%u, %x)\n", This, written_frames, flags);
EnterCriticalSection(&This->lock);
if(!written_frames){
This->getbuf_last = 0;
LeaveCriticalSection(&This->lock);
return S_OK;
}
if(!This->getbuf_last){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_OUT_OF_ORDER;
}
if(written_frames > (This->getbuf_last >= 0 ? This->getbuf_last : -This->getbuf_last)){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_INVALID_SIZE;
}
if(This->getbuf_last >= 0)
buffer = This->local_buffer + This->wri_offs_frames * This->fmt->nBlockAlign;
else
buffer = This->tmp_buffer;
if(flags & AUDCLNT_BUFFERFLAGS_SILENT)
silence_buffer(This, buffer, written_frames);
if(This->getbuf_last < 0)
alsa_wrap_buffer(This, buffer, written_frames);
This->wri_offs_frames += written_frames;
This->wri_offs_frames %= This->bufsize_frames;
This->held_frames += written_frames;
This->written_frames += written_frames;
This->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 IAudioClient_AddRef(&This->IAudioClient_iface);
}
static ULONG WINAPI AudioCaptureClient_Release(IAudioCaptureClient *iface)
{
ACImpl *This = impl_from_IAudioCaptureClient(iface);
return IAudioClient_Release(&This->IAudioClient_iface);
}
static HRESULT WINAPI AudioCaptureClient_GetBuffer(IAudioCaptureClient *iface,
BYTE **data, UINT32 *frames, DWORD *flags, UINT64 *devpos,
UINT64 *qpcpos)
{
ACImpl *This = impl_from_IAudioCaptureClient(iface);
TRACE("(%p)->(%p, %p, %p, %p, %p)\n", This, data, frames, flags,
devpos, qpcpos);
if(!data || !frames || !flags)
return E_POINTER;
EnterCriticalSection(&This->lock);
if(This->getbuf_last){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_OUT_OF_ORDER;
}
/* hr = GetNextPacketSize(iface, frames); */
if(This->held_frames < This->mmdev_period_frames){
*frames = 0;
LeaveCriticalSection(&This->lock);
return AUDCLNT_S_BUFFER_EMPTY;
}
*frames = This->mmdev_period_frames;
if(This->lcl_offs_frames + *frames > This->bufsize_frames){
UINT32 chunk_bytes, offs_bytes, frames_bytes;
if(This->tmp_buffer_frames < *frames){
HeapFree(GetProcessHeap(), 0, This->tmp_buffer);
This->tmp_buffer = HeapAlloc(GetProcessHeap(), 0,
*frames * This->fmt->nBlockAlign);
if(!This->tmp_buffer){
LeaveCriticalSection(&This->lock);
return E_OUTOFMEMORY;
}
This->tmp_buffer_frames = *frames;
}
*data = This->tmp_buffer;
chunk_bytes = (This->bufsize_frames - This->lcl_offs_frames) *
This->fmt->nBlockAlign;
offs_bytes = This->lcl_offs_frames * This->fmt->nBlockAlign;
frames_bytes = *frames * This->fmt->nBlockAlign;
memcpy(This->tmp_buffer, This->local_buffer + offs_bytes, chunk_bytes);
memcpy(This->tmp_buffer + chunk_bytes, This->local_buffer,
frames_bytes - chunk_bytes);
}else
*data = This->local_buffer +
This->lcl_offs_frames * This->fmt->nBlockAlign;
This->getbuf_last = *frames;
*flags = 0;
if(devpos)
*devpos = This->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);
TRACE("(%p)->(%u)\n", This, done);
EnterCriticalSection(&This->lock);
if(!done){
This->getbuf_last = 0;
LeaveCriticalSection(&This->lock);
return S_OK;
}
if(!This->getbuf_last){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_OUT_OF_ORDER;
}
if(This->getbuf_last != done){
LeaveCriticalSection(&This->lock);
return AUDCLNT_E_INVALID_SIZE;
}
This->written_frames += done;
This->held_frames -= done;
This->lcl_offs_frames += done;
This->lcl_offs_frames %= This->bufsize_frames;
This->getbuf_last = 0;
LeaveCriticalSection(&This->lock);
return S_OK;
}
static HRESULT WINAPI AudioCaptureClient_GetNextPacketSize(
IAudioCaptureClient *iface, UINT32 *frames)
{
ACImpl *This = impl_from_IAudioCaptureClient(iface);
TRACE("(%p)->(%p)\n", This, frames);
if(!frames)
return E_POINTER;
EnterCriticalSection(&This->lock);
*frames = This->held_frames < This->mmdev_period_frames ? 0 : This->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 IAudioClient_AddRef(&This->IAudioClient_iface);
}
static ULONG WINAPI AudioClock_Release(IAudioClock *iface)
{
ACImpl *This = impl_from_IAudioClock(iface);
return IAudioClient_Release(&This->IAudioClient_iface);
}
static HRESULT WINAPI AudioClock_GetFrequency(IAudioClock *iface, UINT64 *freq)
{
ACImpl *This = impl_from_IAudioClock(iface);
TRACE("(%p)->(%p)\n", This, freq);
if(This->share == AUDCLNT_SHAREMODE_SHARED)
*freq = (UINT64)This->fmt->nSamplesPerSec * This->fmt->nBlockAlign;
else
*freq = This->fmt->nSamplesPerSec;
return S_OK;
}
static HRESULT WINAPI AudioClock_GetPosition(IAudioClock *iface, UINT64 *pos,
UINT64 *qpctime)
{
ACImpl *This = impl_from_IAudioClock(iface);
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(This->pcm_handle);
alsa_state = snd_pcm_state(This->pcm_handle);
if(This->dataflow == eRender){
position = This->written_frames - This->held_frames;
if(This->started && alsa_state == SND_PCM_STATE_RUNNING && This->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(This);
position = min(position, This->written_frames - This->held_frames + This->mmdev_period_frames);
position = min(position, This->written_frames);
}else
position = This->written_frames + This->held_frames;
/* ensure monotic growth */
if(position < This->last_pos_frames)
position = This->last_pos_frames;
else
This->last_pos_frames = position;
TRACE("frames written: %u, held: %u, state: 0x%x, position: %u\n",
(UINT32)(This->written_frames%1000000000), This->held_frames,
alsa_state, (UINT32)(position%1000000000));
LeaveCriticalSection(&This->lock);
if(This->share == AUDCLNT_SHAREMODE_SHARED)
*pos = position * This->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 IAudioClient_AddRef(&This->IAudioClient_iface);
}
static ULONG WINAPI AudioClock2_Release(IAudioClock2 *iface)
{
ACImpl *This = impl_from_IAudioClock2(iface);
return IAudioClient_Release(&This->IAudioClient_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->IAudioClient_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->IAudioClient_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->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(&session->lock);
session->master_vol = level;
LeaveCriticalSection(&session->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, %p)\n", session, mute, 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 IAudioClient_AddRef(&This->IAudioClient_iface);
}
static ULONG WINAPI AudioStreamVolume_Release(IAudioStreamVolume *iface)
{
ACImpl *This = impl_from_IAudioStreamVolume(iface);
return IAudioClient_Release(&This->IAudioClient_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->fmt->nChannels;
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->fmt->nChannels)
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->fmt->nChannels)
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->fmt->nChannels)
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->fmt->nChannels)
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(&session->lock);
session->channel_vols[index] = level;
LeaveCriticalSection(&session->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(&session->lock);
for(i = 0; i < count; ++i)
session->channel_vols[i] = levels[i];
LeaveCriticalSection(&session->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->u.pwszVal = CoTaskMemAlloc(128 * sizeof(WCHAR));
if(!out->u.pwszVal)
return E_OUTOFMEMORY;
if(connection == AudioDeviceConnectionType_USB)
sprintfW( out->u.pwszVal, usbformatW, vendor_id, product_id, device, serial_number);
else if(connection == AudioDeviceConnectionType_PCI)
sprintfW( out->u.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->u.ulVal = KSAUDIO_SPEAKER_5POINT1;
else if (num_speakers >= 4)
out->u.ulVal = KSAUDIO_SPEAKER_QUAD;
else if (num_speakers >= 2)
out->u.ulVal = KSAUDIO_SPEAKER_STEREO;
else if (num_speakers == 1)
out->u.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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