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/* $Id: HDAStreamMap.h $ */
/** @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 */
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