Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 174 insertions, 0 deletions

diff --git a/src/VBox/Devices/Audio/HDAStreamMap.cpp b/src/VBox/Devices/Audio/HDAStreamMap.cpp
new file mode 100644
index 00000000..27845e39
--- /dev/null
+++ b/src/VBox/Devices/Audio/HDAStreamMap.cpp
@@ -0,0 +1,174 @@
+/* $Id: HDAStreamMap.cpp $ */
+/** @file
+ * HDAStreamMap.cpp - Stream mapping 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.
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#define LOG_GROUP LOG_GROUP_DEV_HDA
+#include <VBox/log.h>
+
+#include <iprt/mem.h>
+
+#include <VBox/vmm/pdmdev.h>
+#include <VBox/vmm/pdmaudioifs.h>
+
+#include "DrvAudio.h"
+
+#include "HDAStreamChannel.h"
+#include "HDAStreamMap.h"
+
+#ifdef IN_RING3
+
+static int hdaR3StreamMapSetup(PHDASTREAMMAP pMap, PPDMAUDIOPCMPROPS pProps);
+
+/**
+ * Initializes a stream mapping structure according to the given PCM properties.
+ *
+ * @return  IPRT status code.
+ * @param   pMap                Pointer to mapping to initialize.
+ * @param   pProps              Pointer to PCM properties to use for initialization.
+ */
+int hdaR3StreamMapInit(PHDASTREAMMAP pMap, PPDMAUDIOPCMPROPS pProps)
+{
+    AssertPtrReturn(pMap, VERR_INVALID_POINTER);
+    AssertPtrReturn(pProps,   VERR_INVALID_POINTER);
+
+    if (!DrvAudioHlpPCMPropsAreValid(pProps))
+        return VERR_INVALID_PARAMETER;
+
+    hdaR3StreamMapReset(pMap);
+
+    int rc = hdaR3StreamMapSetup(pMap, pProps);
+    if (RT_FAILURE(rc))
+        return rc;
+
+#ifdef VBOX_WITH_AUDIO_HDA_51_SURROUND
+    if (   RT_SUCCESS(rc)
+        /* Create circular buffer if not created yet. */
+        && !pMap->pCircBuf)
+    {
+        rc = RTCircBufCreate(&pMap->pCircBuf, _4K); /** @todo Make size configurable? */
+    }
+#endif
+
+    if (RT_SUCCESS(rc))
+    {
+        pMap->cbFrameSize = pProps->cChannels * pProps->cBytes;
+
+        LogFunc(("cChannels=%RU8, cBytes=%RU8 -> cbFrameSize=%RU32\n",
+                 pProps->cChannels, pProps->cBytes, pMap->cbFrameSize));
+
+        Assert(pMap->cbFrameSize); /* Frame size must not be 0. */
+
+        pMap->enmLayout = PDMAUDIOSTREAMLAYOUT_INTERLEAVED;
+    }
+
+    return rc;
+}
+
+
+/**
+ * Destroys a given stream mapping.
+ *
+ * @param   pMap            Pointer to mapping to destroy.
+ */
+void hdaR3StreamMapDestroy(PHDASTREAMMAP pMap)
+{
+    hdaR3StreamMapReset(pMap);
+
+#ifdef VBOX_WITH_AUDIO_HDA_51_SURROUND
+    if (pMap->pCircBuf)
+    {
+        RTCircBufDestroy(pMap->pCircBuf);
+        pMap->pCircBuf = NULL;
+    }
+#endif
+}
+
+
+/**
+ * Resets a given stream mapping.
+ *
+ * @param   pMap            Pointer to mapping to reset.
+ */
+void hdaR3StreamMapReset(PHDASTREAMMAP pMap)
+{
+    AssertPtrReturnVoid(pMap);
+
+    pMap->enmLayout = PDMAUDIOSTREAMLAYOUT_UNKNOWN;
+
+    if (pMap->paMappings)
+    {
+        for (uint8_t i = 0; i < pMap->cMappings; i++)
+            hdaR3StreamChannelDataDestroy(&pMap->paMappings[i].Data);
+
+        RTMemFree(pMap->paMappings);
+        pMap->paMappings = NULL;
+
+        pMap->cMappings = 0;
+    }
+}
+
+
+/**
+ * Sets up a stream mapping according to the given properties / configuration.
+ *
+ * @return VBox status code, or VERR_NOT_SUPPORTED if the channel setup is not supported (yet).
+ * @param  pMap                 Pointer to mapping to set up.
+ * @param  pProps               PCM audio properties to use for lookup.
+ */
+static int hdaR3StreamMapSetup(PHDASTREAMMAP pMap, PPDMAUDIOPCMPROPS pProps)
+{
+    int rc;
+
+    /** @todo We ASSUME that all channels in a stream ...
+     *        - have the same format
+     *        - are in a consecutive order with no gaps in between
+     *        - have a simple (raw) data layout
+     *        - work in a non-striped fashion, e.g. interleaved (only on one SDn, not spread over multiple SDns) */
+    if  (   pProps->cChannels == 1  /* Mono */
+         || pProps->cChannels == 2  /* Stereo */
+         || pProps->cChannels == 4  /* Quadrophonic */
+         || pProps->cChannels == 6) /* Surround (5.1) */
+    {
+        /* For now we don't have anything other as mono / stereo channels being covered by the backends.
+         * So just set up one channel covering those and skipping the rest (like configured rear or center/LFE outputs). */
+        pMap->cMappings  = 1;
+        pMap->paMappings = (PPDMAUDIOSTREAMMAP)RTMemAlloc(sizeof(PDMAUDIOSTREAMMAP) * pMap->cMappings);
+        if (!pMap->paMappings)
+            return VERR_NO_MEMORY;
+
+        PPDMAUDIOSTREAMMAP pMapLR = &pMap->paMappings[0];
+
+        pMapLR->aID[0]  = PDMAUDIOSTREAMCHANNELID_FRONT_LEFT;
+        pMapLR->aID[1]  = PDMAUDIOSTREAMCHANNELID_FRONT_RIGHT;
+        pMapLR->cbFrame = pProps->cBytes * pProps->cChannels;
+        pMapLR->cbSize  = pProps->cBytes * 2 /* Front left + Front right channels */;
+        pMapLR->cbFirst = 0;
+        pMapLR->cbOff   = pMapLR->cbFirst;
+
+        rc = hdaR3StreamChannelDataInit(&pMapLR->Data, PDMAUDIOSTREAMCHANNELDATA_FLAG_NONE);
+        AssertRC(rc);
+    }
+    else
+        rc = VERR_NOT_SUPPORTED; /** @todo r=andy Support more setups. */
+
+    return rc;
+}
+#endif /* IN_RING3 */
+