/* $Id: HDAStreamMap.h 76565 2019-01-01 04:23:20Z vboxsync $ */ /** @file * HDAStreamMap.h - Stream map functions for HD Audio. */ /* * Copyright (C) 2017-2019 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. */ #ifndef VBOX_INCLUDED_SRC_Audio_HDAStreamMap_h #define VBOX_INCLUDED_SRC_Audio_HDAStreamMap_h #ifndef RT_WITHOUT_PRAGMA_ONCE # pragma once #endif /** * Structure for keeping an audio stream data mapping. */ typedef struct HDASTREAMMAP { /** The stream's layout. */ PDMAUDIOSTREAMLAYOUT enmLayout; uint8_t cbFrameSize; /** Number of mappings in paMappings. */ uint8_t cMappings; uint8_t aPadding[2]; /** Array of stream mappings. * Note: The mappings *must* be layed out in an increasing order, e.g. * how the data appears in the given data block. */ R3PTRTYPE(PPDMAUDIOSTREAMMAP) paMappings; #if HC_ARCH_BITS == 32 RTR3PTR Padding1; #endif #ifdef VBOX_WITH_AUDIO_HDA_51_SURROUND /** Circular buffer holding for holding audio data for this mapping. */ R3PTRTYPE(PRTCIRCBUF) pCircBuf; #endif } HDASTREAMMAP; AssertCompileSizeAlignment(HDASTREAMMAP, 8); typedef HDASTREAMMAP *PHDASTREAMMAP; /** @name Stream mapping functions. * @{ */ #ifdef IN_RING3 int hdaR3StreamMapInit(PHDASTREAMMAP pMapping, PPDMAUDIOPCMPROPS pProps); void hdaR3StreamMapDestroy(PHDASTREAMMAP pMapping); void hdaR3StreamMapReset(PHDASTREAMMAP pMapping); #endif /* IN_RING3 */ /** @} */ #endif /* !VBOX_INCLUDED_SRC_Audio_HDAStreamMap_h */