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include/AK/SoundEngine/Platforms/Windows/AkWinSoundEngine.h
浏览该文件的文档。00001 /******************************************************************************* 00002 The content of this file includes portions of the AUDIOKINETIC Wwise Technology 00003 released in source code form as part of the SDK installer package. 00004 00005 Commercial License Usage 00006 00007 Licensees holding valid commercial licenses to the AUDIOKINETIC Wwise Technology 00008 may use this file in accordance with the end user license agreement provided 00009 with the software or, alternatively, in accordance with the terms contained in a 00010 written agreement between you and Audiokinetic Inc. 00011 00012 Apache License Usage 00013 00014 Alternatively, this file may be used under the Apache License, Version 2.0 (the 00015 "Apache License"); you may not use this file except in compliance with the 00016 Apache License. You may obtain a copy of the Apache License at 00017 http://www.apache.org/licenses/LICENSE-2.0. 00018 00019 Unless required by applicable law or agreed to in writing, software distributed 00020 under the Apache License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES 00021 OR CONDITIONS OF ANY KIND, either express or implied. See the Apache License for 00022 the specific language governing permissions and limitations under the License. 00023 00024 Version: <VERSION> Build: <BUILDNUMBER> 00025 Copyright (c) <COPYRIGHTYEAR> Audiokinetic Inc. 00026 *******************************************************************************/ 00027 00028 // AkWinSoundEngine.h 00029 00030 /// \file 00031 /// Main Sound Engine interface, specific WIN32. 00032 00033 #ifndef _AK_WIN_SOUND_ENGINE_H_ 00034 #define _AK_WIN_SOUND_ENGINE_H_ 00035 00036 #include <AK/SoundEngine/Common/AkTypes.h> 00037 #include <AK/Tools/Common/AkPlatformFuncs.h> 00038 00039 ///< API used for audio output 00040 ///< Use with AkPlatformInitSettings to select the API used for audio output. 00041 ///< Use AkAPI_Default, it will select the more appropriate API depending on the computer's capabilities. Other values should be used for testing purposes. 00042 ///< \sa AK::SoundEngine::Init 00043 enum AkAudioAPI 00044 { 00045 AkAPI_Wasapi = 1 << 0, ///< Use Wasapi 00046 AkAPI_XAudio2 = 1 << 1, ///< Use XAudio2 (this is the preferred API on Windows) 00047 AkAPI_DirectSound = 1 << 2, ///< Use DirectSound 00048 AkAPI_Default = AkAPI_Wasapi | AkAPI_XAudio2 | AkAPI_DirectSound, ///< Default value, will select the more appropriate API (XAudio2 is the default) 00049 }; 00050 00051 ///< Used with \ref AK::GetWindowsDeviceName to specify the device state mask. 00052 enum AkAudioDeviceState 00053 { 00054 AkDeviceState_Active = 1 << 0, ///< The audio device is active That is, the audio adapter that connects to the endpont device is present and enabled. 00055 AkDeviceState_Disabled = 1 << 1, ///< The audio device is disabled. 00056 AkDeviceState_NotPresent = 1 << 2, ///< The audio device is not present because the audio adapter that connects to the endpoint device has been removed from the system. 00057 AkDeviceState_Unplugged = 1 << 3, ///< The audio device is unplugged. 00058 AkDeviceState_All = AkDeviceState_Active | AkDeviceState_Disabled | AkDeviceState_NotPresent | AkDeviceState_Unplugged, ///< Includes audio devices in all states. 00059 }; 00060 00061 struct IXAudio2; 00062 00063 /// Platform specific initialization settings 00064 /// \sa AK::SoundEngine::Init 00065 /// \sa AK::SoundEngine::GetDefaultPlatformInitSettings 00066 /// - \ref soundengine_initialization_advanced_soundengine_using_memory_threshold 00067 00068 struct AkPlatformInitSettings 00069 { 00070 // Direct sound. 00071 HWND hWnd; ///< Handle to the window associated to the audio. 00072 ///< Each game must specify the HWND that will be passed to DirectSound initialization. 00073 ///< The value returned by GetDefaultPlatformInitSettings is the foreground HWND at 00074 ///< the moment of the initialization of the sound engine and may not be the correct one for your game. 00075 ///< It is required that each game provides the correct HWND to be used. 00076 00077 00078 // Threading model. 00079 AkThreadProperties threadLEngine; ///< Lower engine threading properties 00080 AkThreadProperties threadBankManager; ///< Bank manager threading properties (its default priority is AK_THREAD_PRIORITY_NORMAL) 00081 AkThreadProperties threadMonitor; ///< Monitor threading properties (its default priority is AK_THREAD_PRIORITY_ABOVENORMAL). This parameter is not used in Release build. 00082 00083 // Memory. 00084 AkUInt32 uLEngineDefaultPoolSize;///< Lower Engine default memory pool size 00085 AkReal32 fLEngineDefaultPoolRatioThreshold; ///< 0.0f to 1.0f value: The percentage of occupied memory where the sound engine should enter in Low memory mode. \ref soundengine_initialization_advanced_soundengine_using_memory_threshold 00086 00087 // Voices. 00088 AkUInt16 uNumRefillsInVoice; ///< Number of refill buffers in voice buffer. 2 == double-buffered, defaults to 4. 00089 00090 AkUInt32 uSampleRate; ///< Sampling Rate. Default is 48000 Hz. Use 24000hz for low quality. Any positive reasonable sample rate is supported. However be careful setting a custom value. Using an odd or really low sample rate may result in malfunctionning sound engine. 00091 00092 00093 AkAudioAPI eAudioAPI; ///< Main audio API to use. Leave to AkAPI_Default for the default sink (default value). 00094 ///< If a valid audioDeviceShareset plug-in is provided, the AkAudioAPI will be Ignored. 00095 ///< \ref AkAudioAPI 00096 00097 bool bGlobalFocus; ///< Corresponding to DSBCAPS_GLOBALFOCUS. If using the AkAPI_DirectSound AkAudioAPI type, sounds will be muted if set to false when the game loses the focus. 00098 ///< This setting is ignored when using other AkAudioAPI types. 00099 00100 IXAudio2* pXAudio2; ///< XAudio2 instance to use for the Wwise sound engine. If NULL (default) Wwise will initialize its own instance. Used only if the sink type is XAudio2 in AkInitSettings.outputType. 00101 }; 00102 00103 struct IDirectSound8; 00104 struct IXAudio2; 00105 struct IMMDevice; 00106 struct IUnknown; 00107 00108 namespace AK 00109 { 00110 /// Get instance of XAudio2 created by the sound engine at initialization. 00111 /// \return Non-addref'd pointer to XAudio2 interface. NULL if sound engine is not initialized or XAudio2 is not used. 00112 /// The returned pointer can be of either XAudio 2.7, XAudio 2.8, Xaudio 2.9 depending on the Windows version the game is running on. Use QueryInterface to identify which one and cast appropriately 00113 AK_EXTERNAPIFUNC( IUnknown *, GetWwiseXAudio2Interface)(); 00114 00115 /// Get instance of DirectSound created by the sound engine at initialization. 00116 /// \return Non-addref'd pointer to DirectSound interface. NULL if sound engine is not initialized or DirectSound is not used. 00117 AK_EXTERNAPIFUNC( IDirectSound8 *, GetDirectSoundInstance )(); 00118 00119 /// Finds the device ID for particular Audio Endpoint. 00120 /// \note CoInitialize must have been called for the calling thread. See Microsoft's documentation about CoInitialize for more details. 00121 /// \return A device ID to use with AddSecondaryOutput or AkPlatformInitSettings.idAudioDevice 00122 AK_EXTERNAPIFUNC( AkUInt32, GetDeviceID ) (IMMDevice* in_pDevice); 00123 00124 /// Finds an audio endpoint that matches the token in the device name or device ID and returns and ID compatible with AddSecondaryOutput. 00125 /// This is a helper function that searches in the device ID (as returned by IMMDevice->GetId) and 00126 /// in the property PKEY_Device_FriendlyName. The token parameter is case-sensitive. If you need to do matching on different conditions, use IMMDeviceEnumerator directly and AK::GetDeviceID. 00127 /// \note CoInitialize must have been called for the calling thread. See Microsoft's documentation about CoInitialize for more details. 00128 /// \return An ID to use with AddSecondaryOutput. The ID returned is the device ID as returned by IMMDevice->GetId, hashed by AK::SoundEngine::GetIDFromName() 00129 AK_EXTERNAPIFUNC( AkUInt32, GetDeviceIDFromName )(wchar_t* in_szToken); 00130 00131 /// Get the user-friendly name for the specified device. Call repeatedly with index starting at 0 and increasing to get all available devices, including disabled and unplugged devices, until the returned string is null. 00132 /// You can also get the default device information by specifying index=-1. The default device is the one with a green checkmark in the Audio Playback Device panel in Windows. 00133 /// The returned out_uDeviceID parameter is the Device ID to use with Wwise. Use it to specify the main device in AkPlatformInitSettings.idAudioDevice or in AK::SoundEngine::AddSecondaryOutput. 00134 /// \note CoInitialize must have been called for the calling thread. See Microsoft's documentation about CoInitialize for more details. 00135 /// \return The name of the device at the "index" specified. The pointer is valid until the next call to GetWindowsDeviceName. 00136 AK_EXTERNAPIFUNC(const wchar_t*, GetWindowsDeviceName) ( 00137 AkInt32 index, ///< Index of the device in the array. -1 to get information on the default device. 00138 AkUInt32 &out_uDeviceID, ///< Device ID for Wwise. This is the same as what is returned from AK::GetDeviceID and AK::GetDeviceIDFromName. Use it to specify the main device in AkPlatformInitSettings.idAudioDevice or in AK::SoundEngine::AddSecondaryOutput. 00139 AkAudioDeviceState uDeviceStateMask = AkDeviceState_All ///< Optional bitmask used to filter the device based on their state. 00140 ); 00141 }; 00142 00143 #endif //_AK_WIN_SOUND_ENGINE_H_