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wine/dlls/winealsa.drv/mmdevdrv.c
Andrew Eikum b8753ada42 winealsa.drv: Default to Stereo instead of 5.1 Surround. 
Some popular ALSA plugins claim support for a large number of channels
because they have the capability to mix that down to the actual hardware
configuration.

Instead of defaulting to 5.1 Surround sound for these plugins, let's
fall back on the much more common Stereo configuration.  Users with
actual 5.1 Surround setups can tell us about it in winecfg.
2015-05-19 19:24:20 +09:00

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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 = 2;
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_STEREO;
else 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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