wasapi.c File Reference

#include <stdlib.h>
#include <windows.h>
#include <winerror.h>
#include <propidl.h>
#include <initguid.h>
#include <mmdeviceapi.h>
#include <mmreg.h>
#include <audioclient.h>
#include <lists/string_list.h>
#include <queues/fifo_queue.h>
#include "../audio_driver.h"
#include "../../verbosity.h"
#include "../../configuration.h"

Include dependency graph for wasapi.c:

Classes
struct	wasapi_t

Macros
#define	_WIN32_WINNT   0x0600
#define	WIN32_LEAN_AND_MEAN
#define	_IMMDeviceCollection_Item(This, nDevice, ppdevice)   (This)->lpVtbl->Item(This,nDevice,ppdevice)
#define	_IAudioClient_Start(This)   ( (This)->lpVtbl -> Start(This) )
#define	_IAudioClient_Stop(This)   ( (This)->lpVtbl -> Stop(This) )
#define	_IAudioClient_GetCurrentPadding(This, pNumPaddingFrames)   ( (This)->lpVtbl -> GetCurrentPadding(This,pNumPaddingFrames) )
#define	_IAudioRenderClient_GetBuffer(This, NumFramesRequested, ppData)   ( (This)->lpVtbl -> GetBuffer(This,NumFramesRequested,ppData) )
#define	_IAudioRenderClient_ReleaseBuffer(This, NumFramesWritten, dwFlags)   ( (This)->lpVtbl -> ReleaseBuffer(This,NumFramesWritten,dwFlags) )
#define	_IAudioClient_GetService(This, riid, ppv)   ( (This)->lpVtbl -> GetService(This,&(riid),ppv) )
#define	_IAudioClient_SetEventHandle(This, eventHandle)   ( (This)->lpVtbl -> SetEventHandle(This,eventHandle) )
#define	_IAudioClient_GetBufferSize(This, pNumBufferFrames)   ( (This)->lpVtbl -> GetBufferSize(This,pNumBufferFrames) )
#define	_IAudioClient_GetStreamLatency(This, phnsLatency)   ( (This)->lpVtbl -> GetStreamLatency(This,phnsLatency) )
#define	_IAudioClient_GetDevicePeriod(This, phnsDefaultDevicePeriod, phnsMinimumDevicePeriod)   ( (This)->lpVtbl -> GetDevicePeriod(This,phnsDefaultDevicePeriod,phnsMinimumDevicePeriod) )
#define	_IMMDevice_Activate(This, iid, dwClsCtx, pActivationParams, ppv)   ((This)->lpVtbl->Activate(This,&(iid),dwClsCtx,pActivationParams,ppv))
#define	_IMMDeviceEnumerator_EnumAudioEndpoints(This, dataFlow, dwStateMask, ppDevices)   (This)->lpVtbl->EnumAudioEndpoints(This,dataFlow,dwStateMask,ppDevices)
#define	_IMMDeviceEnumerator_GetDefaultAudioEndpoint(This, dataFlow, role, ppEndpoint)   (This)->lpVtbl->GetDefaultAudioEndpoint(This,dataFlow,role,ppEndpoint)
#define	_IMMDevice_OpenPropertyStore(This, stgmAccess, ppProperties)   (This)->lpVtbl->OpenPropertyStore(This,stgmAccess,ppProperties)
#define	_IMMDevice_GetId(This, ppstrId)   (This)->lpVtbl->GetId(This,ppstrId)
#define	_IPropertyStore_GetValue(This, key, pv)   ( (This)->lpVtbl -> GetValue(This,&(key),pv) )
#define	_IMMDeviceCollection_GetCount(This, cProps)   ( (This)->lpVtbl -> GetCount(This,cProps) )
#define	WASAPI_WARN(bool_exp, err_str, warn_exp)
#define	WASAPI_CHECK(bool_exp, err_str, err_exp)
#define	WASAPI_HR_CHECK(hr, fun_str, err_exp)
#define	WASAPI_HR_WARN(hr, fun_str, warn_exp)
#define	WASAPI_SR_CHECK(bool_exp, fun_str, err_exp)
#define	WASAPI_RELEASE(iface)
#define	WASAPI_FREE(ptr)
#define	WASAPI_CO_FREE(ptr)

Functions
	DEFINE_PROPERTYKEY (PKEY_Device_FriendlyName, 0xa45c254e, 0xdf1c, 0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0, 14)
static bool	wasapi_check_device_id (IMMDevice *device, const char *id)
static IMMDevice *	wasapi_init_device (const char *id)
static unsigned	wasapi_pref_rate (unsigned i)
static void	wasapi_set_format (WAVEFORMATEXTENSIBLE *wf, bool float_fmt, unsigned rate)
static IAudioClient *	wasapi_init_client_sh (IMMDevice *device, bool *float_fmt, unsigned *rate, unsigned latency)
static IAudioClient *	wasapi_init_client_ex (IMMDevice *device, bool *float_fmt, unsigned *rate, unsigned latency)
static IAudioClient *	wasapi_init_client (IMMDevice *device, bool *exclusive, bool *float_fmt, unsigned *rate, unsigned latency)
static void *	wasapi_init (const char *dev_id, unsigned rate, unsigned latency, unsigned u1, unsigned *u2)
static bool	wasapi_flush (wasapi_t *w, const void *data, size_t size)
static bool	wasapi_flush_buffer (wasapi_t *w, size_t size)
static ssize_t	wasapi_write_sh (wasapi_t *w, const void *data, size_t size)
static ssize_t	wasapi_write_ex (wasapi_t *w, const void *data, size_t size)
static ssize_t	wasapi_write (void *wh, const void *data, size_t size)
static bool	wasapi_stop (void *wh)
static bool	wasapi_start (void *wh, bool u)
static bool	wasapi_alive (void *wh)
static void	wasapi_set_nonblock_state (void *wh, bool nonblock)
static void	wasapi_free (void *wh)
static bool	wasapi_use_float (void *wh)
static void *	wasapi_device_list_new (void *u)
static void	wasapi_device_list_free (void *u, void *slp)
static size_t	wasapi_write_avail (void *wh)
static size_t	wasapi_buffer_size (void *wh)

Variables
audio_driver_t	audio_wasapi

Macro Definition Documentation

_IAudioClient_GetBufferSize

#define _IAudioClient_GetBufferSize	(		This,
			pNumBufferFrames
	)		( (This)->lpVtbl -> GetBufferSize(This,pNumBufferFrames) )

_IAudioClient_GetCurrentPadding

#define _IAudioClient_GetCurrentPadding	(		This,
			pNumPaddingFrames
	)		( (This)->lpVtbl -> GetCurrentPadding(This,pNumPaddingFrames) )

_IAudioClient_GetDevicePeriod

#define _IAudioClient_GetDevicePeriod	(		This,
			phnsDefaultDevicePeriod,
			phnsMinimumDevicePeriod
	)		( (This)->lpVtbl -> GetDevicePeriod(This,phnsDefaultDevicePeriod,phnsMinimumDevicePeriod) )

_IAudioClient_GetService

#define _IAudioClient_GetService	(		This,
			riid,
			ppv
	)		( (This)->lpVtbl -> GetService(This,&(riid),ppv) )

_IAudioClient_GetStreamLatency

#define _IAudioClient_GetStreamLatency	(		This,
			phnsLatency
	)		( (This)->lpVtbl -> GetStreamLatency(This,phnsLatency) )

_IAudioClient_SetEventHandle

#define _IAudioClient_SetEventHandle	(		This,
			eventHandle
	)		( (This)->lpVtbl -> SetEventHandle(This,eventHandle) )

_IAudioClient_Start

#define _IAudioClient_Start

(

This

)

( (This)->lpVtbl -> Start(This) )

_IAudioClient_Stop

#define _IAudioClient_Stop

(

This

)

( (This)->lpVtbl -> Stop(This) )

_IAudioRenderClient_GetBuffer

#define _IAudioRenderClient_GetBuffer	(		This,
			NumFramesRequested,
			ppData
	)		( (This)->lpVtbl -> GetBuffer(This,NumFramesRequested,ppData) )

_IAudioRenderClient_ReleaseBuffer

#define _IAudioRenderClient_ReleaseBuffer	(		This,
			NumFramesWritten,
			dwFlags
	)		( (This)->lpVtbl -> ReleaseBuffer(This,NumFramesWritten,dwFlags) )

_IMMDevice_Activate

#define _IMMDevice_Activate	(		This,
			iid,
			dwClsCtx,
			pActivationParams,
			ppv
	)		((This)->lpVtbl->Activate(This,&(iid),dwClsCtx,pActivationParams,ppv))

_IMMDevice_GetId

#define _IMMDevice_GetId	(		This,
			ppstrId
	)		(This)->lpVtbl->GetId(This,ppstrId)

_IMMDevice_OpenPropertyStore

#define _IMMDevice_OpenPropertyStore	(		This,
			stgmAccess,
			ppProperties
	)		(This)->lpVtbl->OpenPropertyStore(This,stgmAccess,ppProperties)

_IMMDeviceCollection_GetCount

#define _IMMDeviceCollection_GetCount	(		This,
			cProps
	)		( (This)->lpVtbl -> GetCount(This,cProps) )

_IMMDeviceCollection_Item

#define _IMMDeviceCollection_Item	(		This,
			nDevice,
			ppdevice
	)		(This)->lpVtbl->Item(This,nDevice,ppdevice)

_IMMDeviceEnumerator_EnumAudioEndpoints

#define _IMMDeviceEnumerator_EnumAudioEndpoints	(		This,
			dataFlow,
			dwStateMask,
			ppDevices
	)		(This)->lpVtbl->EnumAudioEndpoints(This,dataFlow,dwStateMask,ppDevices)

_IMMDeviceEnumerator_GetDefaultAudioEndpoint

#define _IMMDeviceEnumerator_GetDefaultAudioEndpoint	(		This,
			dataFlow,
			role,
			ppEndpoint
	)		(This)->lpVtbl->GetDefaultAudioEndpoint(This,dataFlow,role,ppEndpoint)

_IPropertyStore_GetValue

#define _IPropertyStore_GetValue	(		This,
			key,
			pv
	)		( (This)->lpVtbl -> GetValue(This,&(key),pv) )

_WIN32_WINNT

#define _WIN32_WINNT   0x0600

WASAPI_CHECK

#define WASAPI_CHECK	(		bool_exp,
			err_str,
			err_exp
	)

Value:

if (!(bool_exp)) { \
         RARCH_ERR("[WASAPI]: %s.\n", err_str); \
         err_exp; }

WASAPI_CO_FREE

#define WASAPI_CO_FREE

(

ptr

)

Value:

if(ptr) {\
         CoTaskMemFree(ptr);\
         ptr = NULL; }\

WASAPI_FREE

#define WASAPI_FREE

(

ptr

)

Value:

if(ptr) {\
         free(ptr);\
         ptr = NULL; }\

WASAPI_HR_CHECK

#define WASAPI_HR_CHECK	(		hr,
			fun_str,
			err_exp
	)

Value:

if (FAILED(hr)) { \
         RARCH_ERR("[WASAPI]: %s failed with error 0x%.8X.\n", fun_str, hr); \
         err_exp; }

WASAPI_HR_WARN

#define WASAPI_HR_WARN	(		hr,
			fun_str,
			warn_exp
	)

Value:

if (FAILED(hr)) { \
         RARCH_WARN("[WASAPI]: %s failed with error 0x%.8X.\n", fun_str, hr); \
         warn_exp; }

WASAPI_RELEASE

#define WASAPI_RELEASE

(

iface

)

Value:

if(iface) \
      { \
         iface->lpVtbl->Release(iface);\
         iface = NULL; \
      }

WASAPI_SR_CHECK

#define WASAPI_SR_CHECK	(		bool_exp,
			fun_str,
			err_exp
	)

Value:

if (!(bool_exp)) { \
         RARCH_ERR("[WASAPI]: %s failed with error %d.\n", fun_str, GetLastError()); \
         err_exp; }

WASAPI_WARN

#define WASAPI_WARN	(		bool_exp,
			err_str,
			warn_exp
	)

Value:

if (!(bool_exp)) { \
         RARCH_WARN("[WASAPI]: %s.\n", err_str); \
         warn_exp; }

WIN32_LEAN_AND_MEAN

#define WIN32_LEAN_AND_MEAN

Function Documentation

DEFINE_PROPERTYKEY()

DEFINE_PROPERTYKEY	(	PKEY_Device_FriendlyName	,
		0xa45c254e	,
		0xdf1c	,
		0x4efd	,
		0x80	,
		0x20	,
		0x67	,
		0xd1	,
		0x46	,
		0xa8	,
		0x50	,
		0xe0	,
		14
	)

wasapi_alive()

static bool wasapi_alive ( void *  wh )

static

wasapi_buffer_size()

static size_t wasapi_buffer_size ( void *  wh )

static

wasapi_check_device_id()

static bool wasapi_check_device_id ( IMMDevice *  device, const char *  id  )

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wasapi_device_list_free()

static void wasapi_device_list_free ( void *  u, void *  slp  )

static

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wasapi_device_list_new()

static void* wasapi_device_list_new ( void *  u )

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wasapi_flush()

static bool wasapi_flush ( wasapi_t *  w, const void *  data, size_t  size  )

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wasapi_flush_buffer()

static bool wasapi_flush_buffer ( wasapi_t *  w, size_t  size  )

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wasapi_free()

static void wasapi_free ( void *  wh )

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wasapi_init()

static void* wasapi_init ( const char *  dev_id, unsigned  rate, unsigned  latency, unsigned  u1, unsigned *  u2  )

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wasapi_init_client()

static IAudioClient* wasapi_init_client ( IMMDevice *  device, bool *  exclusive, bool *  float_fmt, unsigned *  rate, unsigned  latency  )

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wasapi_init_client_ex()

static IAudioClient* wasapi_init_client_ex ( IMMDevice *  device, bool *  float_fmt, unsigned *  rate, unsigned  latency  )

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wasapi_init_client_sh()

static IAudioClient* wasapi_init_client_sh ( IMMDevice *  device, bool *  float_fmt, unsigned *  rate, unsigned  latency  )

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wasapi_init_device()

static IMMDevice* wasapi_init_device ( const char *  id )

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wasapi_pref_rate()

static unsigned wasapi_pref_rate ( unsigned  i )

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wasapi_set_format()

static void wasapi_set_format ( WAVEFORMATEXTENSIBLE *  wf, bool  float_fmt, unsigned  rate  )

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wasapi_set_nonblock_state()

static void wasapi_set_nonblock_state ( void *  wh, bool  nonblock  )

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wasapi_start()

static bool wasapi_start ( void *  wh, bool  u  )

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wasapi_stop()

static bool wasapi_stop ( void *  wh )

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wasapi_use_float()

static bool wasapi_use_float ( void *  wh )

static

wasapi_write()

static ssize_t wasapi_write ( void *  wh, const void *  data, size_t  size  )

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wasapi_write_avail()

static size_t wasapi_write_avail ( void *  wh )

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wasapi_write_ex()

static ssize_t wasapi_write_ex ( wasapi_t *  w, const void *  data, size_t  size  )

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wasapi_write_sh()

static ssize_t wasapi_write_sh ( wasapi_t *  w, const void *  data, size_t  size  )

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Variable Documentation

audio_wasapi

audio_driver_t audio_wasapi

Initial value:

= {
   wasapi_init,
   wasapi_write,
   wasapi_stop,
   wasapi_start,
   wasapi_alive,
   wasapi_set_nonblock_state,
   wasapi_free,
   wasapi_use_float,
   "wasapi",
   wasapi_device_list_new,
   wasapi_device_list_free,
   wasapi_write_avail,
   wasapi_buffer_size
}