/* $Id: vkatDriverStack.cpp 91654 2021-10-10 08:32:58Z vboxsync $ */ /** @file * Validation Kit Audio Test (VKAT) - Driver stack code. */ /* * Copyright (C) 2021 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. * * The contents of this file may alternatively be used under the terms * of the Common Development and Distribution License Version 1.0 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the * VirtualBox OSE distribution, in which case the provisions of the * CDDL are applicable instead of those of the GPL. * * You may elect to license modified versions of this file under the * terms and conditions of either the GPL or the CDDL or both. */ /********************************************************************************************************************************* * Header Files * *********************************************************************************************************************************/ #define LOG_GROUP LOG_GROUP_AUDIO_TEST #include #include #include #include #include #include #include /** * Internal driver instance data * @note This must be put here as it's needed before pdmdrv.h is included. */ typedef struct PDMDRVINSINT { /** The stack the drive belongs to. */ struct AUDIOTESTDRVSTACK *pStack; } PDMDRVINSINT; #define PDMDRVINSINT_DECLARED #include "vkatInternal.h" #include "VBoxDD.h" /********************************************************************************************************************************* * Fake PDM Driver Handling. * *********************************************************************************************************************************/ /** @name Driver Fakes/Stubs * * @note The VMM functions defined here will turn into driver helpers before * long, as the drivers aren't supposed to import directly from the VMM in * the future. * * @{ */ VMMR3DECL(PCFGMNODE) CFGMR3GetChild(PCFGMNODE pNode, const char *pszPath) { RT_NOREF(pNode, pszPath); return NULL; } VMMR3DECL(int) CFGMR3QueryString(PCFGMNODE pNode, const char *pszName, char *pszString, size_t cchString) { if (pNode != NULL) { PCPDMDRVREG pDrvReg = (PCPDMDRVREG)pNode; if (g_uVerbosity > 2) RTPrintf("debug: CFGMR3QueryString([%s], %s, %p, %#x)\n", pDrvReg->szName, pszName, pszString, cchString); if ( ( strcmp(pDrvReg->szName, "PulseAudio") == 0 || strcmp(pDrvReg->szName, "HostAudioWas") == 0) && strcmp(pszName, "VmName") == 0) return RTStrCopy(pszString, cchString, "vkat"); if ( strcmp(pDrvReg->szName, "HostAudioWas") == 0 && strcmp(pszName, "VmUuid") == 0) return RTStrCopy(pszString, cchString, "794c9192-d045-4f28-91ed-46253ac9998e"); } else if (g_uVerbosity > 2) RTPrintf("debug: CFGMR3QueryString(%p, %s, %p, %#x)\n", pNode, pszName, pszString, cchString); return VERR_CFGM_VALUE_NOT_FOUND; } VMMR3DECL(int) CFGMR3QueryStringAlloc(PCFGMNODE pNode, const char *pszName, char **ppszString) { char szStr[128]; int rc = CFGMR3QueryString(pNode, pszName, szStr, sizeof(szStr)); if (RT_SUCCESS(rc)) *ppszString = RTStrDup(szStr); return rc; } VMMR3DECL(void) MMR3HeapFree(void *pv) { /* counterpart to CFGMR3QueryStringAlloc */ RTStrFree((char *)pv); } VMMR3DECL(int) CFGMR3QueryStringDef(PCFGMNODE pNode, const char *pszName, char *pszString, size_t cchString, const char *pszDef) { PCPDMDRVREG pDrvReg = (PCPDMDRVREG)pNode; if (RT_VALID_PTR(pDrvReg)) { const char *pszRet = pszDef; if ( g_pszDrvAudioDebug && strcmp(pDrvReg->szName, "AUDIO") == 0 && strcmp(pszName, "DebugPathOut") == 0) pszRet = g_pszDrvAudioDebug; int rc = RTStrCopy(pszString, cchString, pszRet); if (g_uVerbosity > 2) RTPrintf("debug: CFGMR3QueryStringDef([%s], %s, %p, %#x, %s) -> '%s' + %Rrc\n", pDrvReg->szName, pszName, pszString, cchString, pszDef, pszRet, rc); return rc; } if (g_uVerbosity > 2) RTPrintf("debug: CFGMR3QueryStringDef(%p, %s, %p, %#x, %s)\n", pNode, pszName, pszString, cchString, pszDef); return RTStrCopy(pszString, cchString, pszDef); } VMMR3DECL(int) CFGMR3QueryBoolDef(PCFGMNODE pNode, const char *pszName, bool *pf, bool fDef) { PCPDMDRVREG pDrvReg = (PCPDMDRVREG)pNode; if (RT_VALID_PTR(pDrvReg)) { *pf = fDef; if ( strcmp(pDrvReg->szName, "AUDIO") == 0 && strcmp(pszName, "DebugEnabled") == 0) *pf = g_fDrvAudioDebug; if (g_uVerbosity > 2) RTPrintf("debug: CFGMR3QueryBoolDef([%s], %s, %p, %RTbool) -> %RTbool\n", pDrvReg->szName, pszName, pf, fDef, *pf); return VINF_SUCCESS; } *pf = fDef; return VINF_SUCCESS; } VMMR3DECL(int) CFGMR3QueryU8(PCFGMNODE pNode, const char *pszName, uint8_t *pu8) { RT_NOREF(pNode, pszName, pu8); return VERR_CFGM_VALUE_NOT_FOUND; } VMMR3DECL(int) CFGMR3QueryU32(PCFGMNODE pNode, const char *pszName, uint32_t *pu32) { RT_NOREF(pNode, pszName, pu32); return VERR_CFGM_VALUE_NOT_FOUND; } VMMR3DECL(int) CFGMR3ValidateConfig(PCFGMNODE pNode, const char *pszNode, const char *pszValidValues, const char *pszValidNodes, const char *pszWho, uint32_t uInstance) { RT_NOREF(pNode, pszNode, pszValidValues, pszValidNodes, pszWho, uInstance); return VINF_SUCCESS; } /** @} */ /** @name Driver Helper Fakes * @{ */ static DECLCALLBACK(int) audioTestDrvHlp_Attach(PPDMDRVINS pDrvIns, uint32_t fFlags, PPDMIBASE *ppBaseInterface) { /* DrvAudio must be allowed to attach the backend driver (paranoid backend drivers may call us to check that nothing is attached). */ if (strcmp(pDrvIns->pReg->szName, "AUDIO") == 0) { PAUDIOTESTDRVSTACK pDrvStack = pDrvIns->Internal.s.pStack; AssertReturn(pDrvStack->pDrvBackendIns == NULL, VERR_PDM_DRIVER_ALREADY_ATTACHED); if (g_uVerbosity > 1) RTMsgInfo("Attaching backend '%s' to DrvAudio...\n", pDrvStack->pDrvReg->szName); int rc = audioTestDrvConstruct(pDrvStack, pDrvStack->pDrvReg, pDrvIns, &pDrvStack->pDrvBackendIns); if (RT_SUCCESS(rc)) { if (ppBaseInterface) *ppBaseInterface = &pDrvStack->pDrvBackendIns->IBase; } else RTMsgError("Failed to attach backend: %Rrc", rc); return rc; } RT_NOREF(fFlags); return VERR_PDM_NO_ATTACHED_DRIVER; } static DECLCALLBACK(void) audioTestDrvHlp_STAMRegister(PPDMDRVINS pDrvIns, void *pvSample, STAMTYPE enmType, const char *pszName, STAMUNIT enmUnit, const char *pszDesc) { RT_NOREF(pDrvIns, pvSample, enmType, pszName, enmUnit, pszDesc); } static DECLCALLBACK(void) audioTestDrvHlp_STAMRegisterF(PPDMDRVINS pDrvIns, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit, const char *pszDesc, const char *pszName, ...) { RT_NOREF(pDrvIns, pvSample, enmType, enmVisibility, enmUnit, pszDesc, pszName); } static DECLCALLBACK(void) audioTestDrvHlp_STAMRegisterV(PPDMDRVINS pDrvIns, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility, STAMUNIT enmUnit, const char *pszDesc, const char *pszName, va_list args) { RT_NOREF(pDrvIns, pvSample, enmType, enmVisibility, enmUnit, pszDesc, pszName, args); } static DECLCALLBACK(int) audioTestDrvHlp_STAMDeregister(PPDMDRVINS pDrvIns, void *pvSample) { RT_NOREF(pDrvIns, pvSample); return VINF_SUCCESS; } static DECLCALLBACK(int) audioTestDrvHlp_STAMDeregisterByPrefix(PPDMDRVINS pDrvIns, const char *pszPrefix) { RT_NOREF(pDrvIns, pszPrefix); return VINF_SUCCESS; } /** * Get the driver helpers. */ static const PDMDRVHLPR3 *audioTestFakeGetDrvHlp(void) { /* * Note! No initializer for s_DrvHlp (also why it's not a file global). * We do not want to have to update this code every time PDMDRVHLPR3 * grows new entries or are otherwise modified. Only when the * entries used by the audio driver changes do we want to change * our code. */ static PDMDRVHLPR3 s_DrvHlp; if (s_DrvHlp.u32Version != PDM_DRVHLPR3_VERSION) { s_DrvHlp.u32Version = PDM_DRVHLPR3_VERSION; s_DrvHlp.u32TheEnd = PDM_DRVHLPR3_VERSION; s_DrvHlp.pfnAttach = audioTestDrvHlp_Attach; s_DrvHlp.pfnSTAMRegister = audioTestDrvHlp_STAMRegister; s_DrvHlp.pfnSTAMRegisterF = audioTestDrvHlp_STAMRegisterF; s_DrvHlp.pfnSTAMRegisterV = audioTestDrvHlp_STAMRegisterV; s_DrvHlp.pfnSTAMDeregister = audioTestDrvHlp_STAMDeregister; s_DrvHlp.pfnSTAMDeregisterByPrefix = audioTestDrvHlp_STAMDeregisterByPrefix; } return &s_DrvHlp; } /** @} */ /** * Implementation of PDMIBASE::pfnQueryInterface for a fake device above * DrvAudio. */ static DECLCALLBACK(void *) audioTestFakeDeviceIBaseQueryInterface(PPDMIBASE pInterface, const char *pszIID) { PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, pInterface); RTMsgWarning("audioTestFakeDeviceIBaseQueryInterface: Unknown interface: %s\n", pszIID); return NULL; } /** IBase interface for a fake device above DrvAudio. */ static PDMIBASE g_AudioTestFakeDeviceIBase = { audioTestFakeDeviceIBaseQueryInterface }; static DECLCALLBACK(int) audioTestIHostAudioPort_DoOnWorkerThread(PPDMIHOSTAUDIOPORT pInterface, PPDMAUDIOBACKENDSTREAM pStream, uintptr_t uUser, void *pvUser) { RT_NOREF(pInterface, pStream, uUser, pvUser); RTMsgWarning("audioTestIHostAudioPort_DoOnWorkerThread was called\n"); return VERR_NOT_IMPLEMENTED; } DECLCALLBACK(void) audioTestIHostAudioPort_NotifyDeviceChanged(PPDMIHOSTAUDIOPORT pInterface, PDMAUDIODIR enmDir, void *pvUser) { RT_NOREF(pInterface, enmDir, pvUser); RTMsgWarning("audioTestIHostAudioPort_NotifyDeviceChanged was called\n"); } static DECLCALLBACK(void) audioTestIHostAudioPort_StreamNotifyPreparingDeviceSwitch(PPDMIHOSTAUDIOPORT pInterface, PPDMAUDIOBACKENDSTREAM pStream) { RT_NOREF(pInterface, pStream); RTMsgWarning("audioTestIHostAudioPort_StreamNotifyPreparingDeviceSwitch was called\n"); } static DECLCALLBACK(void) audioTestIHostAudioPort_StreamNotifyDeviceChanged(PPDMIHOSTAUDIOPORT pInterface, PPDMAUDIOBACKENDSTREAM pStream, bool fReInit) { RT_NOREF(pInterface, pStream, fReInit); RTMsgWarning("audioTestIHostAudioPort_StreamNotifyDeviceChanged was called\n"); } static DECLCALLBACK(void) audioTestIHostAudioPort_NotifyDevicesChanged(PPDMIHOSTAUDIOPORT pInterface) { RT_NOREF(pInterface); RTMsgWarning("audioTestIHostAudioPort_NotifyDevicesChanged was called\n"); } static PDMIHOSTAUDIOPORT g_AudioTestIHostAudioPort = { audioTestIHostAudioPort_DoOnWorkerThread, audioTestIHostAudioPort_NotifyDeviceChanged, audioTestIHostAudioPort_StreamNotifyPreparingDeviceSwitch, audioTestIHostAudioPort_StreamNotifyDeviceChanged, audioTestIHostAudioPort_NotifyDevicesChanged, }; /** * Implementation of PDMIBASE::pfnQueryInterface for a fake DrvAudio above a * backend. */ static DECLCALLBACK(void *) audioTestFakeDrvAudioIBaseQueryInterface(PPDMIBASE pInterface, const char *pszIID) { PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, pInterface); PDMIBASE_RETURN_INTERFACE(pszIID, PDMIHOSTAUDIOPORT, &g_AudioTestIHostAudioPort); RTMsgWarning("audioTestFakeDrvAudioIBaseQueryInterface: Unknown interface: %s\n", pszIID); return NULL; } /** IBase interface for a fake DrvAudio above a lonesome backend. */ static PDMIBASE g_AudioTestFakeDrvAudioIBase = { audioTestFakeDrvAudioIBaseQueryInterface }; /** * Constructs a PDM audio driver instance. * * @returns VBox status code. * @param pDrvStack The stack this is associated with. * @param pDrvReg PDM driver registration record to use for construction. * @param pParentDrvIns The parent driver (if any). * @param ppDrvIns Where to return the driver instance structure. */ int audioTestDrvConstruct(PAUDIOTESTDRVSTACK pDrvStack, PCPDMDRVREG pDrvReg, PPDMDRVINS pParentDrvIns, PPPDMDRVINS ppDrvIns) { /* The destruct function must have valid data to work with. */ *ppDrvIns = NULL; /* * Check registration structure validation (doesn't need to be too * thorough, PDM check it in detail on every VM startup). */ AssertPtrReturn(pDrvReg, VERR_INVALID_POINTER); RTMsgInfo("Initializing backend '%s' ...\n", pDrvReg->szName); AssertPtrReturn(pDrvReg->pfnConstruct, VERR_INVALID_PARAMETER); /* * Create the instance data structure. */ PPDMDRVINS pDrvIns = (PPDMDRVINS)RTMemAllocZVar(RT_UOFFSETOF_DYN(PDMDRVINS, achInstanceData[pDrvReg->cbInstance])); RTTEST_CHECK_RET(g_hTest, pDrvIns, VERR_NO_MEMORY); pDrvIns->u32Version = PDM_DRVINS_VERSION; pDrvIns->iInstance = 0; pDrvIns->pHlpR3 = audioTestFakeGetDrvHlp(); pDrvIns->pvInstanceDataR3 = &pDrvIns->achInstanceData[0]; pDrvIns->pReg = pDrvReg; pDrvIns->pCfg = (PCFGMNODE)pDrvReg; pDrvIns->Internal.s.pStack = pDrvStack; pDrvIns->pUpBase = NULL; pDrvIns->pDownBase = NULL; if (pParentDrvIns) { Assert(pParentDrvIns->pDownBase == NULL); pParentDrvIns->pDownBase = &pDrvIns->IBase; pDrvIns->pUpBase = &pParentDrvIns->IBase; } else if (strcmp(pDrvReg->szName, "AUDIO") == 0) pDrvIns->pUpBase = &g_AudioTestFakeDeviceIBase; else pDrvIns->pUpBase = &g_AudioTestFakeDrvAudioIBase; /* * Invoke the constructor. */ int rc = pDrvReg->pfnConstruct(pDrvIns, pDrvIns->pCfg, 0 /*fFlags*/); if (RT_SUCCESS(rc)) { *ppDrvIns = pDrvIns; return VINF_SUCCESS; } if (pDrvReg->pfnDestruct) pDrvReg->pfnDestruct(pDrvIns); RTMemFree(pDrvIns); return rc; } /** * Destructs a PDM audio driver instance. * * @param pDrvIns Driver instance to destruct. */ static void audioTestDrvDestruct(PPDMDRVINS pDrvIns) { if (pDrvIns) { Assert(pDrvIns->u32Version == PDM_DRVINS_VERSION); if (pDrvIns->pReg->pfnDestruct) pDrvIns->pReg->pfnDestruct(pDrvIns); pDrvIns->u32Version = 0; pDrvIns->pReg = NULL; RTMemFree(pDrvIns); } } /** * Sends the PDM driver a power off notification. * * @param pDrvIns Driver instance to notify. */ static void audioTestDrvNotifyPowerOff(PPDMDRVINS pDrvIns) { if (pDrvIns) { Assert(pDrvIns->u32Version == PDM_DRVINS_VERSION); if (pDrvIns->pReg->pfnPowerOff) pDrvIns->pReg->pfnPowerOff(pDrvIns); } } /** * Deletes a driver stack. * * This will power off and destroy the drivers. */ void audioTestDriverStackDelete(PAUDIOTESTDRVSTACK pDrvStack) { /* * Do power off notifications (top to bottom). */ audioTestDrvNotifyPowerOff(pDrvStack->pDrvAudioIns); audioTestDrvNotifyPowerOff(pDrvStack->pDrvBackendIns); /* * Drivers are destroyed from bottom to top (closest to the device). */ audioTestDrvDestruct(pDrvStack->pDrvBackendIns); pDrvStack->pDrvBackendIns = NULL; pDrvStack->pIHostAudio = NULL; audioTestDrvDestruct(pDrvStack->pDrvAudioIns); pDrvStack->pDrvAudioIns = NULL; pDrvStack->pIAudioConnector = NULL; PDMAudioHostEnumDelete(&pDrvStack->DevEnum); } /** * Initializes a driver stack, extended version. * * @returns VBox status code. * @param pDrvStack The driver stack to initialize. * @param pDrvReg The backend driver to use. * @param fEnabledIn Whether input is enabled or not on creation time. * @param fEnabledOut Whether output is enabled or not on creation time. * @param fWithDrvAudio Whether to include DrvAudio in the stack or not. */ int audioTestDriverStackInitEx(PAUDIOTESTDRVSTACK pDrvStack, PCPDMDRVREG pDrvReg, bool fEnabledIn, bool fEnabledOut, bool fWithDrvAudio) { int rc; RT_ZERO(*pDrvStack); pDrvStack->pDrvReg = pDrvReg; PDMAudioHostEnumInit(&pDrvStack->DevEnum); if (!fWithDrvAudio) rc = audioTestDrvConstruct(pDrvStack, pDrvReg, NULL /*pParentDrvIns*/, &pDrvStack->pDrvBackendIns); else { rc = audioTestDrvConstruct(pDrvStack, &g_DrvAUDIO, NULL /*pParentDrvIns*/, &pDrvStack->pDrvAudioIns); if (RT_SUCCESS(rc)) { Assert(pDrvStack->pDrvAudioIns); PPDMIBASE const pIBase = &pDrvStack->pDrvAudioIns->IBase; pDrvStack->pIAudioConnector = (PPDMIAUDIOCONNECTOR)pIBase->pfnQueryInterface(pIBase, PDMIAUDIOCONNECTOR_IID); if (pDrvStack->pIAudioConnector) { /* Both input and output is disabled by default. */ if (fEnabledIn) rc = pDrvStack->pIAudioConnector->pfnEnable(pDrvStack->pIAudioConnector, PDMAUDIODIR_IN, true); if (RT_SUCCESS(rc)) { if (fEnabledOut) rc = pDrvStack->pIAudioConnector->pfnEnable(pDrvStack->pIAudioConnector, PDMAUDIODIR_OUT, true); } if (RT_FAILURE(rc)) { RTTestFailed(g_hTest, "Failed to enabled input and output: %Rrc", rc); audioTestDriverStackDelete(pDrvStack); } } else { RTTestFailed(g_hTest, "Failed to query PDMIAUDIOCONNECTOR"); audioTestDriverStackDelete(pDrvStack); rc = VERR_PDM_MISSING_INTERFACE; } } } /* * Get the IHostAudio interface and check that the host driver is working. */ if (RT_SUCCESS(rc)) { PPDMIBASE const pIBase = &pDrvStack->pDrvBackendIns->IBase; pDrvStack->pIHostAudio = (PPDMIHOSTAUDIO)pIBase->pfnQueryInterface(pIBase, PDMIHOSTAUDIO_IID); if (pDrvStack->pIHostAudio) { PDMAUDIOBACKENDSTS enmStatus = pDrvStack->pIHostAudio->pfnGetStatus(pDrvStack->pIHostAudio, PDMAUDIODIR_OUT); if (enmStatus == PDMAUDIOBACKENDSTS_RUNNING) return VINF_SUCCESS; RTTestFailed(g_hTest, "Expected backend status RUNNING, got %d instead", enmStatus); } else RTTestFailed(g_hTest, "Failed to query PDMIHOSTAUDIO for '%s'", pDrvReg->szName); audioTestDriverStackDelete(pDrvStack); } return rc; } /** * Initializes a driver stack. * * @returns VBox status code. * @param pDrvStack The driver stack to initialize. * @param pDrvReg The backend driver to use. * @param fEnabledIn Whether input is enabled or not on creation time. * @param fEnabledOut Whether output is enabled or not on creation time. * @param fWithDrvAudio Whether to include DrvAudio in the stack or not. */ int audioTestDriverStackInit(PAUDIOTESTDRVSTACK pDrvStack, PCPDMDRVREG pDrvReg, bool fWithDrvAudio) { return audioTestDriverStackInitEx(pDrvStack, pDrvReg, true /* fEnabledIn */, true /* fEnabledOut */, fWithDrvAudio); } /** * Initializes a driver stack by probing all backends in the order of appearance * in the backends description table. * * @returns VBox status code. * @param pDrvStack The driver stack to initialize. * @param pDrvReg The backend driver to use. * @param fEnabledIn Whether input is enabled or not on creation time. * @param fEnabledOut Whether output is enabled or not on creation time. * @param fWithDrvAudio Whether to include DrvAudio in the stack or not. */ int audioTestDriverStackProbe(PAUDIOTESTDRVSTACK pDrvStack, PCPDMDRVREG pDrvReg, bool fEnabledIn, bool fEnabledOut, bool fWithDrvAudio) { int rc = VERR_IPE_UNINITIALIZED_STATUS; /* Shut up MSVC. */ for (size_t i = 0; i < g_cBackends; i++) { pDrvReg = g_aBackends[i].pDrvReg; RTTestPrintf(g_hTest, RTTESTLVL_ALWAYS, "Probing for backend '%s' ...\n", g_aBackends[i].pszName); rc = audioTestDriverStackInitEx(pDrvStack, pDrvReg, fEnabledIn, fEnabledOut, fWithDrvAudio); /** @todo Make in/out configurable, too. */ if (RT_SUCCESS(rc)) { RTTestPrintf(g_hTest, RTTESTLVL_ALWAYS, "Probing backend '%s' successful\n", g_aBackends[i].pszName); return rc; } RTTestPrintf(g_hTest, RTTESTLVL_ALWAYS, "Probing backend '%s' failed with %Rrc, trying next one\n", g_aBackends[i].pszName, rc); continue; } RTTestPrintf(g_hTest, RTTESTLVL_ALWAYS, "Probing all backends failed\n"); return rc; } /** * Wrapper around PDMIHOSTAUDIO::pfnSetDevice. */ int audioTestDriverStackSetDevice(PAUDIOTESTDRVSTACK pDrvStack, PDMAUDIODIR enmDir, const char *pszDevId) { int rc; if ( pDrvStack->pIHostAudio && pDrvStack->pIHostAudio->pfnSetDevice) rc = pDrvStack->pIHostAudio->pfnSetDevice(pDrvStack->pIHostAudio, enmDir, pszDevId); else if (!pszDevId || *pszDevId) rc = VINF_SUCCESS; else rc = VERR_INVALID_FUNCTION; return rc; } /** * Common stream creation code. * * @returns VBox status code. * @param pDrvStack The audio driver stack to create it via. * @param pCfgReq The requested config. * @param ppStream Where to return the stream pointer on success. * @param pCfgAcq Where to return the actual (well, not necessarily when * using DrvAudio, but probably the same) stream config on * success (not used as input). */ static int audioTestDriverStackStreamCreate(PAUDIOTESTDRVSTACK pDrvStack, PCPDMAUDIOSTREAMCFG pCfgReq, PPDMAUDIOSTREAM *ppStream, PPDMAUDIOSTREAMCFG pCfgAcq) { char szTmp[PDMAUDIOSTRMCFGTOSTRING_MAX + 16]; int rc; *ppStream = NULL; if (pDrvStack->pIAudioConnector) { /* * DrvAudio does most of the work here. */ rc = pDrvStack->pIAudioConnector->pfnStreamCreate(pDrvStack->pIAudioConnector, 0 /*fFlags*/, pCfgReq, ppStream); if (RT_SUCCESS(rc)) { *pCfgAcq = (*ppStream)->Cfg; RTMsgInfo("Created backend stream: %s\n", PDMAudioStrmCfgToString(pCfgReq, szTmp, sizeof(szTmp))); return rc; } RTTestFailed(g_hTest, "pfnStreamCreate failed: %Rrc", rc); } else { /* * Get the config so we can see how big the PDMAUDIOBACKENDSTREAM * structure actually is for this backend. */ PDMAUDIOBACKENDCFG BackendCfg; rc = pDrvStack->pIHostAudio->pfnGetConfig(pDrvStack->pIHostAudio, &BackendCfg); if (RT_SUCCESS(rc)) { if (BackendCfg.cbStream >= sizeof(PDMAUDIOBACKENDSTREAM)) { /* * Allocate and initialize the stream. */ uint32_t const cbStream = sizeof(AUDIOTESTDRVSTACKSTREAM) - sizeof(PDMAUDIOBACKENDSTREAM) + BackendCfg.cbStream; PAUDIOTESTDRVSTACKSTREAM pStreamAt = (PAUDIOTESTDRVSTACKSTREAM)RTMemAllocZVar(cbStream); if (pStreamAt) { pStreamAt->Core.uMagic = PDMAUDIOSTREAM_MAGIC; pStreamAt->Core.Cfg = *pCfgReq; pStreamAt->Core.cbBackend = cbStream; pStreamAt->Backend.uMagic = PDMAUDIOBACKENDSTREAM_MAGIC; pStreamAt->Backend.pStream = &pStreamAt->Core; /* * Call the backend to create the stream. */ rc = pDrvStack->pIHostAudio->pfnStreamCreate(pDrvStack->pIHostAudio, &pStreamAt->Backend, pCfgReq, &pStreamAt->Core.Cfg); if (RT_SUCCESS(rc)) { if (g_uVerbosity > 1) RTMsgInfo("Created backend stream: %s\n", PDMAudioStrmCfgToString(&pStreamAt->Core.Cfg, szTmp, sizeof(szTmp))); /* Return if stream is ready: */ if (rc == VINF_SUCCESS) { *ppStream = &pStreamAt->Core; *pCfgAcq = pStreamAt->Core.Cfg; return VINF_SUCCESS; } if (rc == VINF_AUDIO_STREAM_ASYNC_INIT_NEEDED) { /* * Do async init right here and now. */ rc = pDrvStack->pIHostAudio->pfnStreamInitAsync(pDrvStack->pIHostAudio, &pStreamAt->Backend, false /*fDestroyed*/); if (RT_SUCCESS(rc)) { *ppStream = &pStreamAt->Core; *pCfgAcq = pStreamAt->Core.Cfg; return VINF_SUCCESS; } RTTestFailed(g_hTest, "pfnStreamInitAsync failed: %Rrc\n", rc); } else { RTTestFailed(g_hTest, "pfnStreamCreate returned unexpected info status: %Rrc", rc); rc = VERR_IPE_UNEXPECTED_INFO_STATUS; } pDrvStack->pIHostAudio->pfnStreamDestroy(pDrvStack->pIHostAudio, &pStreamAt->Backend, true /*fImmediate*/); } else RTTestFailed(g_hTest, "pfnStreamCreate failed: %Rrc\n", rc); } else { RTTestFailed(g_hTest, "Out of memory!\n"); rc = VERR_NO_MEMORY; } RTMemFree(pStreamAt); } else { RTTestFailed(g_hTest, "cbStream=%#x is too small, min %#zx!\n", BackendCfg.cbStream, sizeof(PDMAUDIOBACKENDSTREAM)); rc = VERR_OUT_OF_RANGE; } } else RTTestFailed(g_hTest, "pfnGetConfig failed: %Rrc\n", rc); } return rc; } /** * Creates an output stream. * * @returns VBox status code. * @param pDrvStack The audio driver stack to create it via. * @param pProps The audio properties to use. * @param cMsBufferSize The buffer size in milliseconds. * @param cMsPreBuffer The pre-buffering amount in milliseconds. * @param cMsSchedulingHint The scheduling hint in milliseconds. * @param ppStream Where to return the stream pointer on success. * @param pCfgAcq Where to return the actual (well, not * necessarily when using DrvAudio, but probably * the same) stream config on success (not used as * input). */ int audioTestDriverStackStreamCreateOutput(PAUDIOTESTDRVSTACK pDrvStack, PCPDMAUDIOPCMPROPS pProps, uint32_t cMsBufferSize, uint32_t cMsPreBuffer, uint32_t cMsSchedulingHint, PPDMAUDIOSTREAM *ppStream, PPDMAUDIOSTREAMCFG pCfgAcq) { /* * Calculate the stream config. */ PDMAUDIOSTREAMCFG CfgReq; int rc = PDMAudioStrmCfgInitWithProps(&CfgReq, pProps); AssertRC(rc); CfgReq.enmDir = PDMAUDIODIR_OUT; CfgReq.enmPath = PDMAUDIOPATH_OUT_FRONT; CfgReq.Device.cMsSchedulingHint = cMsSchedulingHint == UINT32_MAX || cMsSchedulingHint == 0 ? 10 : cMsSchedulingHint; if (pDrvStack->pIAudioConnector && (cMsBufferSize == UINT32_MAX || cMsBufferSize == 0)) CfgReq.Backend.cFramesBufferSize = 0; /* DrvAudio picks the default */ else CfgReq.Backend.cFramesBufferSize = PDMAudioPropsMilliToFrames(pProps, cMsBufferSize == UINT32_MAX || cMsBufferSize == 0 ? 300 : cMsBufferSize); if (cMsPreBuffer == UINT32_MAX) CfgReq.Backend.cFramesPreBuffering = pDrvStack->pIAudioConnector ? UINT32_MAX /*DrvAudo picks the default */ : CfgReq.Backend.cFramesBufferSize * 2 / 3; else CfgReq.Backend.cFramesPreBuffering = PDMAudioPropsMilliToFrames(pProps, cMsPreBuffer); if ( CfgReq.Backend.cFramesPreBuffering >= CfgReq.Backend.cFramesBufferSize + 16 && !pDrvStack->pIAudioConnector /*DrvAudio deals with it*/ ) { RTMsgWarning("Cannot pre-buffer %#x frames with only %#x frames of buffer!", CfgReq.Backend.cFramesPreBuffering, CfgReq.Backend.cFramesBufferSize); CfgReq.Backend.cFramesPreBuffering = CfgReq.Backend.cFramesBufferSize > 16 ? CfgReq.Backend.cFramesBufferSize - 16 : 0; } static uint32_t s_idxStream = 0; uint32_t const idxStream = s_idxStream++; RTStrPrintf(CfgReq.szName, sizeof(CfgReq.szName), "out-%u", idxStream); /* * Call common code to do the actual work. */ return audioTestDriverStackStreamCreate(pDrvStack, &CfgReq, ppStream, pCfgAcq); } /** * Creates an input stream. * * @returns VBox status code. * @param pDrvStack The audio driver stack to create it via. * @param pProps The audio properties to use. * @param cMsBufferSize The buffer size in milliseconds. * @param cMsPreBuffer The pre-buffering amount in milliseconds. * @param cMsSchedulingHint The scheduling hint in milliseconds. * @param ppStream Where to return the stream pointer on success. * @param pCfgAcq Where to return the actual (well, not * necessarily when using DrvAudio, but probably * the same) stream config on success (not used as * input). */ int audioTestDriverStackStreamCreateInput(PAUDIOTESTDRVSTACK pDrvStack, PCPDMAUDIOPCMPROPS pProps, uint32_t cMsBufferSize, uint32_t cMsPreBuffer, uint32_t cMsSchedulingHint, PPDMAUDIOSTREAM *ppStream, PPDMAUDIOSTREAMCFG pCfgAcq) { /* * Calculate the stream config. */ PDMAUDIOSTREAMCFG CfgReq; int rc = PDMAudioStrmCfgInitWithProps(&CfgReq, pProps); AssertRC(rc); CfgReq.enmDir = PDMAUDIODIR_IN; CfgReq.enmPath = PDMAUDIOPATH_IN_LINE; CfgReq.Device.cMsSchedulingHint = cMsSchedulingHint == UINT32_MAX || cMsSchedulingHint == 0 ? 10 : cMsSchedulingHint; if (pDrvStack->pIAudioConnector && (cMsBufferSize == UINT32_MAX || cMsBufferSize == 0)) CfgReq.Backend.cFramesBufferSize = 0; /* DrvAudio picks the default */ else CfgReq.Backend.cFramesBufferSize = PDMAudioPropsMilliToFrames(pProps, cMsBufferSize == UINT32_MAX || cMsBufferSize == 0 ? 300 : cMsBufferSize); if (cMsPreBuffer == UINT32_MAX) CfgReq.Backend.cFramesPreBuffering = pDrvStack->pIAudioConnector ? UINT32_MAX /*DrvAudio picks the default */ : CfgReq.Backend.cFramesBufferSize / 2; else CfgReq.Backend.cFramesPreBuffering = PDMAudioPropsMilliToFrames(pProps, cMsPreBuffer); if ( CfgReq.Backend.cFramesPreBuffering >= CfgReq.Backend.cFramesBufferSize + 16 /** @todo way to little */ && !pDrvStack->pIAudioConnector /*DrvAudio deals with it*/ ) { RTMsgWarning("Cannot pre-buffer %#x frames with only %#x frames of buffer!", CfgReq.Backend.cFramesPreBuffering, CfgReq.Backend.cFramesBufferSize); CfgReq.Backend.cFramesPreBuffering = CfgReq.Backend.cFramesBufferSize > 16 ? CfgReq.Backend.cFramesBufferSize - 16 : 0; } static uint32_t s_idxStream = 0; uint32_t const idxStream = s_idxStream++; RTStrPrintf(CfgReq.szName, sizeof(CfgReq.szName), "in-%u", idxStream); /* * Call common code to do the actual work. */ return audioTestDriverStackStreamCreate(pDrvStack, &CfgReq, ppStream, pCfgAcq); } /** * Destroys a stream. */ void audioTestDriverStackStreamDestroy(PAUDIOTESTDRVSTACK pDrvStack, PPDMAUDIOSTREAM pStream) { if (pStream) { if (pDrvStack->pIAudioConnector) { RTTestPrintf(g_hTest, RTTESTLVL_ALWAYS, "Destroying stream '%s' (IAudioConnector) ...\n", pStream->Cfg.szName); int rc = pDrvStack->pIAudioConnector->pfnStreamDestroy(pDrvStack->pIAudioConnector, pStream, true /*fImmediate*/); if (RT_FAILURE(rc)) RTTestFailed(g_hTest, "pfnStreamDestroy failed: %Rrc", rc); } else { RTTestPrintf(g_hTest, RTTESTLVL_ALWAYS, "Destroying stream '%s' (IHostAudio) ...\n", pStream->Cfg.szName); PAUDIOTESTDRVSTACKSTREAM pStreamAt = (PAUDIOTESTDRVSTACKSTREAM)pStream; int rc = pDrvStack->pIHostAudio->pfnStreamDestroy(pDrvStack->pIHostAudio, &pStreamAt->Backend, true /*fImmediate*/); if (RT_SUCCESS(rc)) { pStreamAt->Core.uMagic = ~PDMAUDIOSTREAM_MAGIC; pStreamAt->Backend.uMagic = ~PDMAUDIOBACKENDSTREAM_MAGIC; RTMemFree(pStreamAt); } else RTTestFailed(g_hTest, "PDMIHOSTAUDIO::pfnStreamDestroy failed: %Rrc", rc); } RTTestPrintf(g_hTest, RTTESTLVL_ALWAYS, "Destroying stream '%s' done\n", pStream->Cfg.szName); } } /** * Enables a stream. */ int audioTestDriverStackStreamEnable(PAUDIOTESTDRVSTACK pDrvStack, PPDMAUDIOSTREAM pStream) { int rc; if (pDrvStack->pIAudioConnector) { rc = pDrvStack->pIAudioConnector->pfnStreamControl(pDrvStack->pIAudioConnector, pStream, PDMAUDIOSTREAMCMD_ENABLE); if (RT_FAILURE(rc)) RTTestFailed(g_hTest, "pfnStreamControl/ENABLE failed: %Rrc", rc); } else { PAUDIOTESTDRVSTACKSTREAM pStreamAt = (PAUDIOTESTDRVSTACKSTREAM)pStream; rc = pDrvStack->pIHostAudio->pfnStreamEnable(pDrvStack->pIHostAudio, &pStreamAt->Backend); if (RT_FAILURE(rc)) RTTestFailed(g_hTest, "PDMIHOSTAUDIO::pfnStreamEnable failed: %Rrc", rc); } return rc; } /** * Disables a stream. */ int AudioTestDriverStackStreamDisable(PAUDIOTESTDRVSTACK pDrvStack, PPDMAUDIOSTREAM pStream) { int rc; if (pDrvStack->pIAudioConnector) { rc = pDrvStack->pIAudioConnector->pfnStreamControl(pDrvStack->pIAudioConnector, pStream, PDMAUDIOSTREAMCMD_DISABLE); if (RT_FAILURE(rc)) RTTestFailed(g_hTest, "pfnStreamControl/DISABLE failed: %Rrc", rc); } else { PAUDIOTESTDRVSTACKSTREAM pStreamAt = (PAUDIOTESTDRVSTACKSTREAM)pStream; rc = pDrvStack->pIHostAudio->pfnStreamDisable(pDrvStack->pIHostAudio, &pStreamAt->Backend); if (RT_FAILURE(rc)) RTTestFailed(g_hTest, "PDMIHOSTAUDIO::pfnStreamDisable failed: %Rrc", rc); } return rc; } /** * Drains an output stream. */ int audioTestDriverStackStreamDrain(PAUDIOTESTDRVSTACK pDrvStack, PPDMAUDIOSTREAM pStream, bool fSync) { int rc; if (pDrvStack->pIAudioConnector) { /* * Issue the drain request. */ rc = pDrvStack->pIAudioConnector->pfnStreamControl(pDrvStack->pIAudioConnector, pStream, PDMAUDIOSTREAMCMD_DRAIN); if (RT_SUCCESS(rc) && fSync) { /* * This is a synchronous drain, so wait for the driver to change state to inactive. */ PDMAUDIOSTREAMSTATE enmState; while ( (enmState = pDrvStack->pIAudioConnector->pfnStreamGetState(pDrvStack->pIAudioConnector, pStream)) >= PDMAUDIOSTREAMSTATE_ENABLED) { RTThreadSleep(2); rc = pDrvStack->pIAudioConnector->pfnStreamIterate(pDrvStack->pIAudioConnector, pStream); if (RT_FAILURE(rc)) { RTTestFailed(g_hTest, "pfnStreamIterate/DRAIN failed: %Rrc", rc); break; } } if (enmState != PDMAUDIOSTREAMSTATE_INACTIVE) { RTTestFailed(g_hTest, "Stream state not INACTIVE after draining: %s", PDMAudioStreamStateGetName(enmState)); rc = VERR_AUDIO_STREAM_NOT_READY; } } else if (RT_FAILURE(rc)) RTTestFailed(g_hTest, "pfnStreamControl/ENABLE failed: %Rrc", rc); } else { /* * Issue the drain request. */ PAUDIOTESTDRVSTACKSTREAM pStreamAt = (PAUDIOTESTDRVSTACKSTREAM)pStream; rc = pDrvStack->pIHostAudio->pfnStreamDrain(pDrvStack->pIHostAudio, &pStreamAt->Backend); if (RT_SUCCESS(rc) && fSync) { /* * This is a synchronous drain, so wait for the driver to change state to inactive. */ PDMHOSTAUDIOSTREAMSTATE enmHostState; while ( (enmHostState = pDrvStack->pIHostAudio->pfnStreamGetState(pDrvStack->pIHostAudio, &pStreamAt->Backend)) == PDMHOSTAUDIOSTREAMSTATE_DRAINING) { RTThreadSleep(2); uint32_t cbWritten = UINT32_MAX; rc = pDrvStack->pIHostAudio->pfnStreamPlay(pDrvStack->pIHostAudio, &pStreamAt->Backend, NULL /*pvBuf*/, 0 /*cbBuf*/, &cbWritten); if (RT_FAILURE(rc)) { RTTestFailed(g_hTest, "pfnStreamPlay/DRAIN failed: %Rrc", rc); break; } if (cbWritten != 0) { RTTestFailed(g_hTest, "pfnStreamPlay/DRAIN did not set cbWritten to zero: %#x", cbWritten); rc = VERR_MISSING; break; } } if (enmHostState != PDMHOSTAUDIOSTREAMSTATE_OKAY) { RTTestFailed(g_hTest, "Stream state not OKAY after draining: %s", PDMHostAudioStreamStateGetName(enmHostState)); rc = VERR_AUDIO_STREAM_NOT_READY; } } else if (RT_FAILURE(rc)) RTTestFailed(g_hTest, "PDMIHOSTAUDIO::pfnStreamControl/ENABLE failed: %Rrc", rc); } return rc; } /** * Checks if the stream is okay. * @returns true if okay, false if not. */ bool audioTestDriverStackStreamIsOkay(PAUDIOTESTDRVSTACK pDrvStack, PPDMAUDIOSTREAM pStream) { /* * Get the stream status and check if it means is okay or not. */ bool fRc = false; if (pDrvStack->pIAudioConnector) { PDMAUDIOSTREAMSTATE enmState = pDrvStack->pIAudioConnector->pfnStreamGetState(pDrvStack->pIAudioConnector, pStream); switch (enmState) { case PDMAUDIOSTREAMSTATE_NOT_WORKING: case PDMAUDIOSTREAMSTATE_NEED_REINIT: break; case PDMAUDIOSTREAMSTATE_INACTIVE: case PDMAUDIOSTREAMSTATE_ENABLED: case PDMAUDIOSTREAMSTATE_ENABLED_READABLE: case PDMAUDIOSTREAMSTATE_ENABLED_WRITABLE: fRc = true; break; /* no default */ case PDMAUDIOSTREAMSTATE_INVALID: case PDMAUDIOSTREAMSTATE_END: case PDMAUDIOSTREAMSTATE_32BIT_HACK: break; } } else { PAUDIOTESTDRVSTACKSTREAM pStreamAt = (PAUDIOTESTDRVSTACKSTREAM)pStream; PDMHOSTAUDIOSTREAMSTATE enmHostState = pDrvStack->pIHostAudio->pfnStreamGetState(pDrvStack->pIHostAudio, &pStreamAt->Backend); switch (enmHostState) { case PDMHOSTAUDIOSTREAMSTATE_INITIALIZING: case PDMHOSTAUDIOSTREAMSTATE_NOT_WORKING: break; case PDMHOSTAUDIOSTREAMSTATE_OKAY: case PDMHOSTAUDIOSTREAMSTATE_DRAINING: case PDMHOSTAUDIOSTREAMSTATE_INACTIVE: fRc = true; break; /* no default */ case PDMHOSTAUDIOSTREAMSTATE_INVALID: case PDMHOSTAUDIOSTREAMSTATE_END: case PDMHOSTAUDIOSTREAMSTATE_32BIT_HACK: break; } } return fRc; } /** * Gets the number of bytes it's currently possible to write to the stream. */ uint32_t audioTestDriverStackStreamGetWritable(PAUDIOTESTDRVSTACK pDrvStack, PPDMAUDIOSTREAM pStream) { uint32_t cbWritable; if (pDrvStack->pIAudioConnector) cbWritable = pDrvStack->pIAudioConnector->pfnStreamGetWritable(pDrvStack->pIAudioConnector, pStream); else { PAUDIOTESTDRVSTACKSTREAM pStreamAt = (PAUDIOTESTDRVSTACKSTREAM)pStream; cbWritable = pDrvStack->pIHostAudio->pfnStreamGetWritable(pDrvStack->pIHostAudio, &pStreamAt->Backend); } return cbWritable; } /** * Tries to play the @a cbBuf bytes of samples in @a pvBuf. */ int audioTestDriverStackStreamPlay(PAUDIOTESTDRVSTACK pDrvStack, PPDMAUDIOSTREAM pStream, void const *pvBuf, uint32_t cbBuf, uint32_t *pcbPlayed) { int rc; if (pDrvStack->pIAudioConnector) { rc = pDrvStack->pIAudioConnector->pfnStreamPlay(pDrvStack->pIAudioConnector, pStream, pvBuf, cbBuf, pcbPlayed); if (RT_FAILURE(rc)) RTTestFailed(g_hTest, "pfnStreamPlay(,,,%#x,) failed: %Rrc", cbBuf, rc); } else { PAUDIOTESTDRVSTACKSTREAM pStreamAt = (PAUDIOTESTDRVSTACKSTREAM)pStream; rc = pDrvStack->pIHostAudio->pfnStreamPlay(pDrvStack->pIHostAudio, &pStreamAt->Backend, pvBuf, cbBuf, pcbPlayed); if (RT_FAILURE(rc)) RTTestFailed(g_hTest, "PDMIHOSTAUDIO::pfnStreamPlay(,,,%#x,) failed: %Rrc", cbBuf, rc); } return rc; } /** * Gets the number of bytes it's currently possible to write to the stream. */ uint32_t audioTestDriverStackStreamGetReadable(PAUDIOTESTDRVSTACK pDrvStack, PPDMAUDIOSTREAM pStream) { uint32_t cbReadable; if (pDrvStack->pIAudioConnector) cbReadable = pDrvStack->pIAudioConnector->pfnStreamGetReadable(pDrvStack->pIAudioConnector, pStream); else { PAUDIOTESTDRVSTACKSTREAM pStreamAt = (PAUDIOTESTDRVSTACKSTREAM)pStream; cbReadable = pDrvStack->pIHostAudio->pfnStreamGetReadable(pDrvStack->pIHostAudio, &pStreamAt->Backend); } return cbReadable; } /** * Tries to capture @a cbBuf bytes of samples in @a pvBuf. */ int audioTestDriverStackStreamCapture(PAUDIOTESTDRVSTACK pDrvStack, PPDMAUDIOSTREAM pStream, void *pvBuf, uint32_t cbBuf, uint32_t *pcbCaptured) { int rc; if (pDrvStack->pIAudioConnector) { rc = pDrvStack->pIAudioConnector->pfnStreamCapture(pDrvStack->pIAudioConnector, pStream, pvBuf, cbBuf, pcbCaptured); if (RT_FAILURE(rc)) RTTestFailed(g_hTest, "pfnStreamCapture(,,,%#x,) failed: %Rrc", cbBuf, rc); } else { PAUDIOTESTDRVSTACKSTREAM pStreamAt = (PAUDIOTESTDRVSTACKSTREAM)pStream; rc = pDrvStack->pIHostAudio->pfnStreamCapture(pDrvStack->pIHostAudio, &pStreamAt->Backend, pvBuf, cbBuf, pcbCaptured); if (RT_FAILURE(rc)) RTTestFailed(g_hTest, "PDMIHOSTAUDIO::pfnStreamCapture(,,,%#x,) failed: %Rrc", cbBuf, rc); } return rc; } /********************************************************************************************************************************* * Mixed streams * *********************************************************************************************************************************/ /** * Initializing mixing for a stream. * * This can be used as a do-nothing wrapper for the stack. * * @returns VBox status code. * @param pMix The mixing state. * @param pStream The stream to mix to/from. * @param pProps The mixer properties. Pass NULL for no mixing, just * wrap the driver stack functionality. * @param cMsBuffer The buffer size. */ int AudioTestMixStreamInit(PAUDIOTESTDRVMIXSTREAM pMix, PAUDIOTESTDRVSTACK pDrvStack, PPDMAUDIOSTREAM pStream, PCPDMAUDIOPCMPROPS pProps, uint32_t cMsBuffer) { RT_ZERO(*pMix); AssertReturn(pDrvStack, VERR_INVALID_PARAMETER); AssertReturn(pStream, VERR_INVALID_PARAMETER); pMix->pDrvStack = pDrvStack; pMix->pStream = pStream; if (!pProps) { pMix->pProps = &pStream->Cfg.Props; return VINF_SUCCESS; } /* * Okay, we're doing mixing so we need to set up the mixer buffer * and associated states. */ pMix->fDoMixing = true; int rc = AudioMixBufInit(&pMix->MixBuf, "mixer", pProps, PDMAudioPropsMilliToFrames(pProps, cMsBuffer)); if (RT_SUCCESS(rc)) { pMix->pProps = &pMix->MixBuf.Props; if (pStream->Cfg.enmDir == PDMAUDIODIR_IN) { rc = AudioMixBufInitPeekState(&pMix->MixBuf, &pMix->PeekState, &pMix->MixBuf.Props); if (RT_SUCCESS(rc)) { rc = AudioMixBufInitWriteState(&pMix->MixBuf, &pMix->WriteState, &pStream->Cfg.Props); if (RT_SUCCESS(rc)) return rc; } } else if (pStream->Cfg.enmDir == PDMAUDIODIR_OUT) { rc = AudioMixBufInitWriteState(&pMix->MixBuf, &pMix->WriteState, &pMix->MixBuf.Props); if (RT_SUCCESS(rc)) { rc = AudioMixBufInitPeekState(&pMix->MixBuf, &pMix->PeekState, &pStream->Cfg.Props); if (RT_SUCCESS(rc)) return rc; } } else { RTTestFailed(g_hTest, "Bogus stream direction!"); rc = VERR_INVALID_STATE; } } else RTTestFailed(g_hTest, "AudioMixBufInit failed: %Rrc", rc); RT_ZERO(*pMix); return rc; } /** * Terminate mixing (leaves the stream untouched). * * @param pMix The mixing state. */ void AudioTestMixStreamTerm(PAUDIOTESTDRVMIXSTREAM pMix) { if (pMix->fDoMixing) { AudioMixBufTerm(&pMix->MixBuf); pMix->pStream = NULL; } RT_ZERO(*pMix); } /** * Worker that transports data between the mixer buffer and the drivers. * * @returns VBox status code. * @param pMix The mixer stream setup to do transfers for. */ static int audioTestMixStreamTransfer(PAUDIOTESTDRVMIXSTREAM pMix) { uint8_t abBuf[16384]; if (pMix->pStream->Cfg.enmDir == PDMAUDIODIR_IN) { /* * Try fill up the mixer buffer as much as possible. * * Slight fun part is that we have to calculate conversion * ratio and be rather pessimistic about it. */ uint32_t const cbBuf = PDMAudioPropsFloorBytesToFrame(&pMix->pStream->Cfg.Props, sizeof(abBuf)); for (;;) { /* * Figure out how much we can move in this iteration. */ uint32_t cDstFrames = AudioMixBufFree(&pMix->MixBuf); if (!cDstFrames) break; uint32_t cbReadable = audioTestDriverStackStreamGetReadable(pMix->pDrvStack, pMix->pStream); if (!cbReadable) break; uint32_t cbToRead; if (PDMAudioPropsHz(&pMix->pStream->Cfg.Props) == PDMAudioPropsHz(&pMix->MixBuf.Props)) cbToRead = PDMAudioPropsFramesToBytes(&pMix->pStream->Cfg.Props, cDstFrames); else cbToRead = PDMAudioPropsFramesToBytes(&pMix->pStream->Cfg.Props, (uint64_t)cDstFrames * PDMAudioPropsHz(&pMix->pStream->Cfg.Props) / PDMAudioPropsHz(&pMix->MixBuf.Props)); cbToRead = RT_MIN(cbToRead, RT_MIN(cbReadable, cbBuf)); if (!cbToRead) break; /* * Get the data. */ uint32_t cbCaptured = 0; int rc = audioTestDriverStackStreamCapture(pMix->pDrvStack, pMix->pStream, abBuf, cbToRead, &cbCaptured); if (RT_FAILURE(rc)) return rc; Assert(cbCaptured == cbToRead); AssertBreak(cbCaptured > 0); /* * Feed it to the mixer. */ uint32_t cDstFramesWritten = 0; if ((abBuf[0] >> 4) & 1) /* some cheap random */ AudioMixBufWrite(&pMix->MixBuf, &pMix->WriteState, abBuf, cbCaptured, 0 /*offDstFrame*/, cDstFrames, &cDstFramesWritten); else { AudioMixBufSilence(&pMix->MixBuf, &pMix->WriteState, 0 /*offFrame*/, cDstFrames); AudioMixBufBlend(&pMix->MixBuf, &pMix->WriteState, abBuf, cbCaptured, 0 /*offDstFrame*/, cDstFrames, &cDstFramesWritten); } AudioMixBufCommit(&pMix->MixBuf, cDstFramesWritten); } } else { /* * The goal here is to empty the mixer buffer by transfering all * the data to the drivers. */ uint32_t const cbBuf = PDMAudioPropsFloorBytesToFrame(&pMix->MixBuf.Props, sizeof(abBuf)); for (;;) { uint32_t cFrames = AudioMixBufUsed(&pMix->MixBuf); if (!cFrames) break; uint32_t cbWritable = audioTestDriverStackStreamGetWritable(pMix->pDrvStack, pMix->pStream); if (!cbWritable) break; uint32_t cSrcFramesPeeked; uint32_t cbDstPeeked; AudioMixBufPeek(&pMix->MixBuf, 0 /*offSrcFrame*/, cFrames, &cSrcFramesPeeked, &pMix->PeekState, abBuf, RT_MIN(cbBuf, cbWritable), &cbDstPeeked); AudioMixBufAdvance(&pMix->MixBuf, cSrcFramesPeeked); if (!cbDstPeeked) break; uint32_t offBuf = 0; while (offBuf < cbDstPeeked) { uint32_t cbPlayed = 0; int rc = audioTestDriverStackStreamPlay(pMix->pDrvStack, pMix->pStream, &abBuf[offBuf], cbDstPeeked - offBuf, &cbPlayed); if (RT_FAILURE(rc)) return rc; if (!cbPlayed) RTThreadSleep(1); offBuf += cbPlayed; } } } return VINF_SUCCESS; } /** * Same as audioTestDriverStackStreamEnable. */ int AudioTestMixStreamEnable(PAUDIOTESTDRVMIXSTREAM pMix) { return audioTestDriverStackStreamEnable(pMix->pDrvStack, pMix->pStream); } /** * Same as audioTestDriverStackStreamDrain. */ int AudioTestMixStreamDrain(PAUDIOTESTDRVMIXSTREAM pMix, bool fSync) { /* * If we're mixing, we must first make sure the buffer is empty. */ if (pMix->fDoMixing) { audioTestMixStreamTransfer(pMix); while (AudioMixBufUsed(&pMix->MixBuf) > 0) { RTThreadSleep(1); audioTestMixStreamTransfer(pMix); } } /* * Then we do the regular work. */ return audioTestDriverStackStreamDrain(pMix->pDrvStack, pMix->pStream, fSync); } /** * Same as audioTestDriverStackStreamDisable. */ int AudioTestMixStreamDisable(PAUDIOTESTDRVMIXSTREAM pMix) { return AudioTestDriverStackStreamDisable(pMix->pDrvStack, pMix->pStream); } /** * Same as audioTestDriverStackStreamIsOkay. */ bool AudioTestMixStreamIsOkay(PAUDIOTESTDRVMIXSTREAM pMix) { return audioTestDriverStackStreamIsOkay(pMix->pDrvStack, pMix->pStream); } /** * Same as audioTestDriverStackStreamGetWritable */ uint32_t AudioTestMixStreamGetWritable(PAUDIOTESTDRVMIXSTREAM pMix) { if (!pMix->fDoMixing) return audioTestDriverStackStreamGetWritable(pMix->pDrvStack, pMix->pStream); uint32_t cbRet = AudioMixBufFreeBytes(&pMix->MixBuf); if (!cbRet) { audioTestMixStreamTransfer(pMix); cbRet = AudioMixBufFreeBytes(&pMix->MixBuf); } return cbRet; } /** * Same as audioTestDriverStackStreamPlay. */ int AudioTestMixStreamPlay(PAUDIOTESTDRVMIXSTREAM pMix, void const *pvBuf, uint32_t cbBuf, uint32_t *pcbPlayed) { if (!pMix->fDoMixing) return audioTestDriverStackStreamPlay(pMix->pDrvStack, pMix->pStream, pvBuf, cbBuf, pcbPlayed); *pcbPlayed = 0; int rc = audioTestMixStreamTransfer(pMix); if (RT_FAILURE(rc)) return rc; uint32_t const cbFrame = PDMAudioPropsFrameSize(&pMix->MixBuf.Props); while (cbBuf >= cbFrame) { uint32_t const cFrames = AudioMixBufFree(&pMix->MixBuf); if (!cFrames) break; uint32_t cbToWrite = PDMAudioPropsFramesToBytes(&pMix->MixBuf.Props, cFrames); cbToWrite = RT_MIN(cbToWrite, cbBuf); cbToWrite = PDMAudioPropsFloorBytesToFrame(&pMix->MixBuf.Props, cbToWrite); uint32_t cFramesWritten = 0; AudioMixBufWrite(&pMix->MixBuf, &pMix->WriteState, pvBuf, cbToWrite, 0 /*offDstFrame*/, cFrames, &cFramesWritten); Assert(cFramesWritten == PDMAudioPropsBytesToFrames(&pMix->MixBuf.Props, cbToWrite)); AudioMixBufCommit(&pMix->MixBuf, cFramesWritten); *pcbPlayed += cbToWrite; cbBuf -= cbToWrite; pvBuf = (uint8_t const *)pvBuf + cbToWrite; rc = audioTestMixStreamTransfer(pMix); if (RT_FAILURE(rc)) return *pcbPlayed ? VINF_SUCCESS : rc; } return VINF_SUCCESS; } /** * Same as audioTestDriverStackStreamGetReadable */ uint32_t AudioTestMixStreamGetReadable(PAUDIOTESTDRVMIXSTREAM pMix) { if (!pMix->fDoMixing) return audioTestDriverStackStreamGetReadable(pMix->pDrvStack, pMix->pStream); audioTestMixStreamTransfer(pMix); uint32_t cbRet = AudioMixBufUsedBytes(&pMix->MixBuf); return cbRet; } /** * Same as audioTestDriverStackStreamCapture. */ int AudioTestMixStreamCapture(PAUDIOTESTDRVMIXSTREAM pMix, void *pvBuf, uint32_t cbBuf, uint32_t *pcbCaptured) { if (!pMix->fDoMixing) return audioTestDriverStackStreamCapture(pMix->pDrvStack, pMix->pStream, pvBuf, cbBuf, pcbCaptured); *pcbCaptured = 0; int rc = audioTestMixStreamTransfer(pMix); if (RT_FAILURE(rc)) return rc; uint32_t const cbFrame = PDMAudioPropsFrameSize(&pMix->MixBuf.Props); while (cbBuf >= cbFrame) { uint32_t const cFrames = AudioMixBufUsed(&pMix->MixBuf); if (!cFrames) break; uint32_t cbToRead = PDMAudioPropsFramesToBytes(&pMix->MixBuf.Props, cFrames); cbToRead = RT_MIN(cbToRead, cbBuf); cbToRead = PDMAudioPropsFloorBytesToFrame(&pMix->MixBuf.Props, cbToRead); uint32_t cFramesPeeked = 0; uint32_t cbPeeked = 0; AudioMixBufPeek(&pMix->MixBuf, 0 /*offSrcFrame*/, cFrames, &cFramesPeeked, &pMix->PeekState, pvBuf, cbToRead, &cbPeeked); Assert(cFramesPeeked == PDMAudioPropsBytesToFrames(&pMix->MixBuf.Props, cbPeeked)); AudioMixBufAdvance(&pMix->MixBuf, cFramesPeeked); *pcbCaptured += cbToRead; cbBuf -= cbToRead; pvBuf = (uint8_t *)pvBuf + cbToRead; rc = audioTestMixStreamTransfer(pMix); if (RT_FAILURE(rc)) return *pcbCaptured ? VINF_SUCCESS : rc; } return VINF_SUCCESS; } /** * Sets the volume of a mixing stream. * * @param pMix Mixing stream to set volume for. * @param uVolumePercent Volume to set (in percent, 0-100). */ void AudioTestMixStreamSetVolume(PAUDIOTESTDRVMIXSTREAM pMix, uint8_t uVolumePercent) { AssertReturnVoid(pMix->fDoMixing); uint8_t const uVol = (PDMAUDIO_VOLUME_MAX / 100) * uVolumePercent; PDMAUDIOVOLUME Vol; RT_ZERO(Vol); for (size_t i = 0; i < RT_ELEMENTS(Vol.auChannels); i++) Vol.auChannels[i] = uVol; AudioMixBufSetVolume(&pMix->MixBuf, &Vol); }