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Diffstat (limited to 'include/VBox/vmm/pdmaudioinline.h')
| -rw-r--r-- | include/VBox/vmm/pdmaudioinline.h | 1507 |
1 files changed, 1507 insertions, 0 deletions
diff --git a/include/VBox/vmm/pdmaudioinline.h b/include/VBox/vmm/pdmaudioinline.h new file mode 100644 index 00000000..5d3175c0 --- /dev/null +++ b/include/VBox/vmm/pdmaudioinline.h @@ -0,0 +1,1507 @@ +/* $Id: pdmaudioinline.h $ */ +/** @file + * PDM - Audio Helpers, Inlined Code. (DEV,++) + * + * This is all inlined because it's too tedious to create a couple libraries to + * contain it all (same bad excuse as for intnetinline.h & pdmnetinline.h). + */ + +/* + * Copyright (C) 2006-2022 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox 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. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + +#ifndef VBOX_INCLUDED_vmm_pdmaudioinline_h +#define VBOX_INCLUDED_vmm_pdmaudioinline_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include <VBox/err.h> +#include <VBox/log.h> +#include <VBox/vmm/pdmaudioifs.h> + +#include <iprt/asm.h> +#include <iprt/asm-math.h> +#include <iprt/assert.h> +#include <iprt/mem.h> +#include <iprt/string.h> + + +/** @defgroup grp_pdm_audio_inline The PDM Audio Helper APIs + * @ingroup grp_pdm + * @{ + */ + + +/** + * Gets the name of an audio direction enum value. + * + * @returns Pointer to read-only name string on success, "bad" if passed an + * invalid enum value. + * @param enmDir The audio direction value to name. + */ +DECLINLINE(const char *) PDMAudioDirGetName(PDMAUDIODIR enmDir) +{ + switch (enmDir) + { + case PDMAUDIODIR_INVALID: return "invalid"; + case PDMAUDIODIR_UNKNOWN: return "unknown"; + case PDMAUDIODIR_IN: return "input"; + case PDMAUDIODIR_OUT: return "output"; + case PDMAUDIODIR_DUPLEX: return "duplex"; + + /* no default */ + case PDMAUDIODIR_END: + case PDMAUDIODIR_32BIT_HACK: + break; + } + AssertMsgFailedReturn(("Invalid audio direction %d\n", enmDir), "bad"); +} + +/** + * Gets the name of an audio mixer control enum value. + * + * @returns Pointer to read-only name, "bad" if invalid input. + * @param enmMixerCtl The audio mixer control value. + */ +DECLINLINE(const char *) PDMAudioMixerCtlGetName(PDMAUDIOMIXERCTL enmMixerCtl) +{ + switch (enmMixerCtl) + { + case PDMAUDIOMIXERCTL_INVALID: return "Invalid"; + case PDMAUDIOMIXERCTL_UNKNOWN: return "Unknown"; + case PDMAUDIOMIXERCTL_VOLUME_MASTER: return "Master Volume"; + case PDMAUDIOMIXERCTL_FRONT: return "Front"; + case PDMAUDIOMIXERCTL_CENTER_LFE: return "Center / LFE"; + case PDMAUDIOMIXERCTL_REAR: return "Rear"; + case PDMAUDIOMIXERCTL_LINE_IN: return "Line-In"; + case PDMAUDIOMIXERCTL_MIC_IN: return "Microphone-In"; + + /* no default */ + case PDMAUDIOMIXERCTL_END: + case PDMAUDIOMIXERCTL_32BIT_HACK: + break; + } + AssertMsgFailedReturn(("Invalid mixer control %ld\n", enmMixerCtl), "bad"); +} + +/** + * Gets the name of a path enum value. + * + * @returns Pointer to read-only name, "bad" if invalid input. + * @param enmPath The path value to name. + */ +DECLINLINE(const char *) PDMAudioPathGetName(PDMAUDIOPATH enmPath) +{ + switch (enmPath) + { + case PDMAUDIOPATH_INVALID: return "invalid"; + case PDMAUDIOPATH_UNKNOWN: return "unknown"; + + case PDMAUDIOPATH_OUT_FRONT: return "front"; + case PDMAUDIOPATH_OUT_CENTER_LFE: return "center-lfe"; + case PDMAUDIOPATH_OUT_REAR: return "rear"; + + case PDMAUDIOPATH_IN_MIC: return "mic"; + case PDMAUDIOPATH_IN_CD: return "cd"; + case PDMAUDIOPATH_IN_VIDEO: return "video-in"; + case PDMAUDIOPATH_IN_AUX: return "aux-in"; + case PDMAUDIOPATH_IN_LINE: return "line-in"; + case PDMAUDIOPATH_IN_PHONE: return "phone"; + + /* no default */ + case PDMAUDIOPATH_END: + case PDMAUDIOPATH_32BIT_HACK: + break; + } + AssertMsgFailedReturn(("Unknown enmPath=%d\n", enmPath), "bad"); +} + +/** + * Gets the name of a channel. + * + * @returns Pointer to read-only name, "bad" if invalid input. + * @param enmChannelId The channel ID to name. + */ +DECLINLINE(const char *) PDMAudioChannelIdGetName(PDMAUDIOCHANNELID enmChannelId) +{ + switch (enmChannelId) + { + case PDMAUDIOCHANNELID_INVALID: return "invalid"; + case PDMAUDIOCHANNELID_UNUSED_ZERO: return "unused-zero"; + case PDMAUDIOCHANNELID_UNUSED_SILENCE: return "unused-silence"; + case PDMAUDIOCHANNELID_UNKNOWN: return "unknown"; + + case PDMAUDIOCHANNELID_FRONT_LEFT: return "FL"; + case PDMAUDIOCHANNELID_FRONT_RIGHT: return "FR"; + case PDMAUDIOCHANNELID_FRONT_CENTER: return "FC"; + case PDMAUDIOCHANNELID_LFE: return "LFE"; + case PDMAUDIOCHANNELID_REAR_LEFT: return "BL"; + case PDMAUDIOCHANNELID_REAR_RIGHT: return "BR"; + case PDMAUDIOCHANNELID_FRONT_LEFT_OF_CENTER: return "FLC"; + case PDMAUDIOCHANNELID_FRONT_RIGHT_OF_CENTER: return "FRC"; + case PDMAUDIOCHANNELID_REAR_CENTER: return "BC"; + case PDMAUDIOCHANNELID_SIDE_LEFT: return "SL"; + case PDMAUDIOCHANNELID_SIDE_RIGHT: return "SR"; + case PDMAUDIOCHANNELID_TOP_CENTER: return "TC"; + case PDMAUDIOCHANNELID_FRONT_LEFT_HEIGHT: return "TFL"; + case PDMAUDIOCHANNELID_FRONT_CENTER_HEIGHT: return "TFC"; + case PDMAUDIOCHANNELID_FRONT_RIGHT_HEIGHT: return "TFR"; + case PDMAUDIOCHANNELID_REAR_LEFT_HEIGHT: return "TBL"; + case PDMAUDIOCHANNELID_REAR_CENTER_HEIGHT: return "TBC"; + case PDMAUDIOCHANNELID_REAR_RIGHT_HEIGHT: return "TBR"; + + /* no default */ + case PDMAUDIOCHANNELID_END: + case PDMAUDIOCHANNELID_32BIT_HACK: + break; + } + AssertMsgFailedReturn(("Unknown enmChannelId=%d\n", enmChannelId), "bad"); +} + + +/********************************************************************************************************************************* +* Volume Helpers * +*********************************************************************************************************************************/ + +/** + * Initializes a PDMAUDIOVOLUME structure to max. + * + * @param pVol The structure to initialize. + */ +DECLINLINE(void) PDMAudioVolumeInitMax(PPDMAUDIOVOLUME pVol) +{ + pVol->fMuted = false; + for (uintptr_t i = 0; i < RT_ELEMENTS(pVol->auChannels); i++) + pVol->auChannels[i] = PDMAUDIO_VOLUME_MAX; +} + + +/** + * Initializes a PDMAUDIOVOLUME structure from a simple stereo setting. + * + * The additional channels will simply be assigned the higer of the two. + * + * @param pVol The structure to initialize. + * @param fMuted Muted. + * @param bLeft The left channel volume. + * @param bRight The right channel volume. + */ +DECLINLINE(void) PDMAudioVolumeInitFromStereo(PPDMAUDIOVOLUME pVol, bool fMuted, uint8_t bLeft, uint8_t bRight) +{ + pVol->fMuted = fMuted; + pVol->auChannels[0] = bLeft; + pVol->auChannels[1] = bRight; + + uint8_t const bOther = RT_MAX(bLeft, bRight); + for (uintptr_t i = 2; i < RT_ELEMENTS(pVol->auChannels); i++) + pVol->auChannels[i] = bOther; +} + + +/** + * Combines two volume settings (typically master and sink). + * + * @param pVol Where to return the combined volume + * @param pVol1 The first volume settings to combine. + * @param pVol2 The second volume settings. + */ +DECLINLINE(void) PDMAudioVolumeCombine(PPDMAUDIOVOLUME pVol, PCPDMAUDIOVOLUME pVol1, PCPDMAUDIOVOLUME pVol2) +{ + if (pVol1->fMuted || pVol2->fMuted) + { + pVol->fMuted = true; + for (uintptr_t i = 0; i < RT_ELEMENTS(pVol->auChannels); i++) + pVol->auChannels[i] = 0; + } + else + { + pVol->fMuted = false; + /** @todo Very crude implementation for now -- needs more work! (At least + * when used in audioMixerSinkUpdateVolume it was considered as such.) */ + for (uintptr_t i = 0; i < RT_ELEMENTS(pVol->auChannels); i++) + { +#if 0 /* bird: I think the shift variant should produce the exact same result, w/o two conditionals per iteration. */ + /* 255 * 255 / 255 = 0xFF (255) */ + /* 17 * 127 / 255 = 8 */ + /* 39 * 39 / 255 = 5 */ + pVol->auChannels[i] = (uint8_t)( (RT_MAX(pVol1->auChannels[i], 1U) * RT_MAX(pVol2->auChannels[i], 1U)) + / PDMAUDIO_VOLUME_MAX); +#else + /* (((255 + 1) * (255 + 1)) >> 8) - 1 = 0xFF (255) */ + /* ((( 17 + 1) * (127 + 1)) >> 8) - 1 = 0x8 (8) */ + /* ((( 39 + 1) * ( 39 + 1)) >> 8) - 1 = 0x5 (5) */ + pVol->auChannels[i] = (uint8_t)((((1U + pVol1->auChannels[i]) * (1U + pVol2->auChannels[i])) >> 8) - 1U); +#endif + } + } +} + + +/********************************************************************************************************************************* +* PCM Property Helpers * +*********************************************************************************************************************************/ + +/** + * Assigns default channel IDs according to the channel count. + * + * The assignments are taken from the standard speaker channel layouts table + * in the wikipedia article on surround sound: + * https://en.wikipedia.org/wiki/Surround_sound#Standard_speaker_channels + */ +DECLINLINE(void) PDMAudioPropsSetDefaultChannelIds(PPDMAUDIOPCMPROPS pProps) +{ + unsigned cChannels = pProps->cChannelsX; + switch (cChannels) + { + case 1: + pProps->aidChannels[0] = PDMAUDIOCHANNELID_MONO; + break; + case 2: + pProps->aidChannels[0] = PDMAUDIOCHANNELID_FRONT_LEFT; + pProps->aidChannels[1] = PDMAUDIOCHANNELID_FRONT_RIGHT; + break; + case 3: /* 2.1 */ + pProps->aidChannels[0] = PDMAUDIOCHANNELID_FRONT_LEFT; + pProps->aidChannels[1] = PDMAUDIOCHANNELID_FRONT_RIGHT; + pProps->aidChannels[2] = PDMAUDIOCHANNELID_LFE; + break; + case 4: /* 4.0 */ + pProps->aidChannels[0] = PDMAUDIOCHANNELID_FRONT_LEFT; + pProps->aidChannels[1] = PDMAUDIOCHANNELID_FRONT_RIGHT; + pProps->aidChannels[2] = PDMAUDIOCHANNELID_REAR_LEFT; + pProps->aidChannels[3] = PDMAUDIOCHANNELID_REAR_RIGHT; + break; + case 5: /* 4.1 */ + pProps->aidChannels[0] = PDMAUDIOCHANNELID_FRONT_LEFT; + pProps->aidChannels[1] = PDMAUDIOCHANNELID_FRONT_RIGHT; + pProps->aidChannels[2] = PDMAUDIOCHANNELID_FRONT_CENTER; + pProps->aidChannels[3] = PDMAUDIOCHANNELID_LFE; + pProps->aidChannels[4] = PDMAUDIOCHANNELID_REAR_CENTER; + break; + case 6: /* 5.1 */ + pProps->aidChannels[0] = PDMAUDIOCHANNELID_FRONT_LEFT; + pProps->aidChannels[1] = PDMAUDIOCHANNELID_FRONT_RIGHT; + pProps->aidChannels[2] = PDMAUDIOCHANNELID_FRONT_CENTER; + pProps->aidChannels[3] = PDMAUDIOCHANNELID_LFE; + pProps->aidChannels[4] = PDMAUDIOCHANNELID_REAR_LEFT; + pProps->aidChannels[5] = PDMAUDIOCHANNELID_REAR_RIGHT; + break; + case 7: /* 6.1 */ + pProps->aidChannels[0] = PDMAUDIOCHANNELID_FRONT_LEFT; + pProps->aidChannels[1] = PDMAUDIOCHANNELID_FRONT_RIGHT; + pProps->aidChannels[2] = PDMAUDIOCHANNELID_FRONT_CENTER; + pProps->aidChannels[3] = PDMAUDIOCHANNELID_LFE; + pProps->aidChannels[4] = PDMAUDIOCHANNELID_REAR_LEFT; + pProps->aidChannels[5] = PDMAUDIOCHANNELID_REAR_RIGHT; + pProps->aidChannels[6] = PDMAUDIOCHANNELID_REAR_CENTER; + break; + case 8: /* 7.1 */ + pProps->aidChannels[0] = PDMAUDIOCHANNELID_FRONT_LEFT; + pProps->aidChannels[1] = PDMAUDIOCHANNELID_FRONT_RIGHT; + pProps->aidChannels[2] = PDMAUDIOCHANNELID_FRONT_CENTER; + pProps->aidChannels[3] = PDMAUDIOCHANNELID_LFE; + pProps->aidChannels[4] = PDMAUDIOCHANNELID_REAR_LEFT; + pProps->aidChannels[5] = PDMAUDIOCHANNELID_REAR_RIGHT; + pProps->aidChannels[6] = PDMAUDIOCHANNELID_FRONT_LEFT_OF_CENTER; + pProps->aidChannels[7] = PDMAUDIOCHANNELID_FRONT_RIGHT_OF_CENTER; + break; + case 9: /* 9.0 */ + pProps->aidChannels[0] = PDMAUDIOCHANNELID_FRONT_LEFT; + pProps->aidChannels[1] = PDMAUDIOCHANNELID_FRONT_RIGHT; + pProps->aidChannels[2] = PDMAUDIOCHANNELID_FRONT_CENTER; + pProps->aidChannels[3] = PDMAUDIOCHANNELID_REAR_LEFT; + pProps->aidChannels[4] = PDMAUDIOCHANNELID_REAR_RIGHT; + pProps->aidChannels[5] = PDMAUDIOCHANNELID_SIDE_LEFT; + pProps->aidChannels[6] = PDMAUDIOCHANNELID_SIDE_RIGHT; + pProps->aidChannels[7] = PDMAUDIOCHANNELID_FRONT_LEFT_HEIGHT; + pProps->aidChannels[8] = PDMAUDIOCHANNELID_FRONT_RIGHT_HEIGHT; + break; + case 10: /* 9.1 */ + pProps->aidChannels[0] = PDMAUDIOCHANNELID_FRONT_LEFT; + pProps->aidChannels[1] = PDMAUDIOCHANNELID_FRONT_RIGHT; + pProps->aidChannels[2] = PDMAUDIOCHANNELID_FRONT_CENTER; + pProps->aidChannels[3] = PDMAUDIOCHANNELID_LFE; + pProps->aidChannels[4] = PDMAUDIOCHANNELID_REAR_LEFT; + pProps->aidChannels[5] = PDMAUDIOCHANNELID_REAR_RIGHT; + pProps->aidChannels[6] = PDMAUDIOCHANNELID_SIDE_LEFT; + pProps->aidChannels[7] = PDMAUDIOCHANNELID_SIDE_RIGHT; + pProps->aidChannels[8] = PDMAUDIOCHANNELID_FRONT_LEFT_HEIGHT; + pProps->aidChannels[9] = PDMAUDIOCHANNELID_FRONT_RIGHT_HEIGHT; + break; + case 11: /* 11.0 */ + pProps->aidChannels[0] = PDMAUDIOCHANNELID_FRONT_LEFT; + pProps->aidChannels[1] = PDMAUDIOCHANNELID_FRONT_RIGHT; + pProps->aidChannels[2] = PDMAUDIOCHANNELID_FRONT_CENTER; + pProps->aidChannels[3] = PDMAUDIOCHANNELID_REAR_LEFT; + pProps->aidChannels[4] = PDMAUDIOCHANNELID_REAR_RIGHT; + pProps->aidChannels[5] = PDMAUDIOCHANNELID_FRONT_LEFT_OF_CENTER; + pProps->aidChannels[6] = PDMAUDIOCHANNELID_FRONT_RIGHT_OF_CENTER; + pProps->aidChannels[7] = PDMAUDIOCHANNELID_SIDE_LEFT; + pProps->aidChannels[8] = PDMAUDIOCHANNELID_SIDE_RIGHT; + pProps->aidChannels[9] = PDMAUDIOCHANNELID_FRONT_LEFT_HEIGHT; + pProps->aidChannels[10]= PDMAUDIOCHANNELID_FRONT_RIGHT_HEIGHT; + break; + default: + AssertFailed(); + cChannels = 12; + RT_FALL_THROUGH(); + case 12: /* 11.1 */ + pProps->aidChannels[0] = PDMAUDIOCHANNELID_FRONT_LEFT; + pProps->aidChannels[1] = PDMAUDIOCHANNELID_FRONT_RIGHT; + pProps->aidChannels[2] = PDMAUDIOCHANNELID_FRONT_CENTER; + pProps->aidChannels[3] = PDMAUDIOCHANNELID_LFE; + pProps->aidChannels[4] = PDMAUDIOCHANNELID_REAR_LEFT; + pProps->aidChannels[5] = PDMAUDIOCHANNELID_REAR_RIGHT; + pProps->aidChannels[6] = PDMAUDIOCHANNELID_FRONT_LEFT_OF_CENTER; + pProps->aidChannels[7] = PDMAUDIOCHANNELID_FRONT_RIGHT_OF_CENTER; + pProps->aidChannels[8] = PDMAUDIOCHANNELID_SIDE_LEFT; + pProps->aidChannels[9] = PDMAUDIOCHANNELID_SIDE_RIGHT; + pProps->aidChannels[10]= PDMAUDIOCHANNELID_FRONT_LEFT_HEIGHT; + pProps->aidChannels[11]= PDMAUDIOCHANNELID_FRONT_RIGHT_HEIGHT; + break; + case 0: + break; + } + AssertCompile(RT_ELEMENTS(pProps->aidChannels) >= 12); + + while (cChannels < RT_ELEMENTS(pProps->aidChannels)) + pProps->aidChannels[cChannels++] = PDMAUDIOCHANNELID_INVALID; +} + + +/** + * Initialize PCM audio properties. + */ +DECLINLINE(void) PDMAudioPropsInit(PPDMAUDIOPCMPROPS pProps, uint8_t cbSample, bool fSigned, uint8_t cChannels, uint32_t uHz) +{ + pProps->cbFrame = cbSample * cChannels; + pProps->cbSampleX = cbSample; + pProps->cChannelsX = cChannels; + pProps->cShiftX = PDMAUDIOPCMPROPS_MAKE_SHIFT_PARMS(cbSample, cChannels); + pProps->fSigned = fSigned; + pProps->fSwapEndian = false; + pProps->fRaw = false; + pProps->uHz = uHz; + + Assert(pProps->cbFrame == (uint32_t)cbSample * cChannels); + Assert(pProps->cbSampleX == cbSample); + Assert(pProps->cChannelsX == cChannels); + + PDMAudioPropsSetDefaultChannelIds(pProps); +} + +/** + * Initialize PCM audio properties, extended version. + */ +DECLINLINE(void) PDMAudioPropsInitEx(PPDMAUDIOPCMPROPS pProps, uint8_t cbSample, bool fSigned, uint8_t cChannels, uint32_t uHz, + bool fLittleEndian, bool fRaw) +{ + Assert(!fRaw || cbSample == sizeof(int64_t)); + pProps->cbFrame = cbSample * cChannels; + pProps->cbSampleX = cbSample; + pProps->cChannelsX = cChannels; + pProps->cShiftX = PDMAUDIOPCMPROPS_MAKE_SHIFT_PARMS(cbSample, cChannels); + pProps->fSigned = fSigned; +#ifdef RT_LITTLE_ENDIAN + pProps->fSwapEndian = !fLittleEndian; +#else + pProps->fSwapEndian = fLittleEndian; +#endif + pProps->fRaw = fRaw; + pProps->uHz = uHz; + + Assert(pProps->cbFrame == (uint32_t)cbSample * cChannels); + Assert(pProps->cbSampleX == cbSample); + Assert(pProps->cChannelsX == cChannels); + + PDMAudioPropsSetDefaultChannelIds(pProps); +} + +/** + * Modifies the channel count. + * + * @note This will reset the channel IDs to defaults. + * + * @param pProps The PCM properties to update. + * @param cChannels The new channel count. + */ +DECLINLINE(void) PDMAudioPropsSetChannels(PPDMAUDIOPCMPROPS pProps, uint8_t cChannels) +{ + Assert(cChannels > 0); Assert(cChannels < 16); + pProps->cChannelsX = cChannels; + pProps->cbFrame = pProps->cbSampleX * cChannels; + pProps->cShiftX = PDMAUDIOPCMPROPS_MAKE_SHIFT_PARMS(pProps->cbSampleX, cChannels); + + PDMAudioPropsSetDefaultChannelIds(pProps); +} + +/** + * Modifies the sample size. + * + * @param pProps The PCM properties to update. + * @param cbSample The new sample size (in bytes). + */ +DECLINLINE(void) PDMAudioPropsSetSampleSize(PPDMAUDIOPCMPROPS pProps, uint8_t cbSample) +{ + Assert(cbSample == 1 || cbSample == 2 || cbSample == 4 || cbSample == 8); + pProps->cbSampleX = cbSample; + pProps->cbFrame = cbSample * pProps->cChannelsX; + pProps->cShiftX = PDMAUDIOPCMPROPS_MAKE_SHIFT_PARMS(cbSample, pProps->cChannelsX); +} + +/** + * Gets the bitrate. + * + * Divide the result by 8 to get the byte rate. + * + * @returns Bit rate. + * @param pProps PCM properties to calculate bitrate for. + */ +DECLINLINE(uint32_t) PDMAudioPropsGetBitrate(PCPDMAUDIOPCMPROPS pProps) +{ + Assert(pProps->cbFrame == pProps->cbSampleX * pProps->cChannelsX); + return pProps->cbFrame * pProps->uHz * 8; +} + +/** + * Gets the number of channels. + * @returns The channel count. + * @param pProps The PCM properties. + */ +DECL_FORCE_INLINE(uint8_t) PDMAudioPropsChannels(PCPDMAUDIOPCMPROPS pProps) +{ + return pProps->cChannelsX; +} + +/** + * Gets the sample size in bytes. + * @returns Number of bytes per sample. + * @param pProps The PCM properties. + */ +DECL_FORCE_INLINE(uint8_t) PDMAudioPropsSampleSize(PCPDMAUDIOPCMPROPS pProps) +{ + return pProps->cbSampleX; +} + +/** + * Gets the sample size in bits. + * @returns Number of bits per sample. + * @param pProps The PCM properties. + */ +DECLINLINE(uint8_t) PDMAudioPropsSampleBits(PCPDMAUDIOPCMPROPS pProps) +{ + return pProps->cbSampleX * 8; +} + +/** + * Gets the frame size in bytes. + * @returns Number of bytes per frame. + * @param pProps The PCM properties. + */ +DECL_FORCE_INLINE(uint8_t) PDMAudioPropsFrameSize(PCPDMAUDIOPCMPROPS pProps) +{ + return pProps->cbFrame; +} + +/** + * Gets the frequency. + * @returns Frequency. + * @param pProps The PCM properties. + */ +DECL_FORCE_INLINE(uint32_t) PDMAudioPropsHz(PCPDMAUDIOPCMPROPS pProps) +{ + return pProps->uHz; +} + +/** + * Checks if the format is signed or unsigned. + * @returns true if signed, false if unsigned. + * @param pProps The PCM properties. + */ +DECL_FORCE_INLINE(bool) PDMAudioPropsIsSigned(PCPDMAUDIOPCMPROPS pProps) +{ + return pProps->fSigned; +} + +/** + * Checks if the format is little-endian or not. + * @returns true if little-endian (or if 8-bit), false if big-endian. + * @param pProps The PCM properties. + */ +DECL_FORCE_INLINE(bool) PDMAudioPropsIsLittleEndian(PCPDMAUDIOPCMPROPS pProps) +{ +#ifdef RT_LITTLE_ENDIAN + return !pProps->fSwapEndian || pProps->cbSampleX < 2; +#else + return pProps->fSwapEndian || pProps->cbSampleX < 2; +#endif +} + +/** + * Checks if the format is big-endian or not. + * @returns true if big-endian (or if 8-bit), false if little-endian. + * @param pProps The PCM properties. + */ +DECL_FORCE_INLINE(bool) PDMAudioPropsIsBigEndian(PCPDMAUDIOPCMPROPS pProps) +{ +#ifdef RT_LITTLE_ENDIAN + return pProps->fSwapEndian || pProps->cbSampleX < 2; +#else + return !pProps->fSwapEndian || pProps->cbSampleX < 2; +#endif +} + +/** + * Rounds down the given byte amount to the nearest frame boundrary. + * + * @returns Rounded byte amount. + * @param pProps PCM properties to use. + * @param cb The size (in bytes) to round. + */ +DECLINLINE(uint32_t) PDMAudioPropsFloorBytesToFrame(PCPDMAUDIOPCMPROPS pProps, uint32_t cb) +{ + AssertPtrReturn(pProps, 0); + return PDMAUDIOPCMPROPS_F2B(pProps, PDMAUDIOPCMPROPS_B2F(pProps, cb)); +} + +/** + * Rounds up the given byte amount to the nearest frame boundrary. + * + * @returns Rounded byte amount. + * @param pProps PCM properties to use. + * @param cb The size (in bytes) to round. + */ +DECLINLINE(uint32_t) PDMAudioPropsRoundUpBytesToFrame(PCPDMAUDIOPCMPROPS pProps, uint32_t cb) +{ + AssertPtrReturn(pProps, 0); + uint32_t const cbFrame = PDMAudioPropsFrameSize(pProps); + AssertReturn(cbFrame, 0); + return PDMAUDIOPCMPROPS_F2B(pProps, PDMAUDIOPCMPROPS_B2F(pProps, cb + cbFrame - 1)); +} + +/** + * Checks if the given size is aligned on a frame boundrary. + * + * @returns @c true if properly aligned, @c false if not. + * @param pProps PCM properties to use. + * @param cb The size (in bytes) to check. + */ +DECLINLINE(bool) PDMAudioPropsIsSizeAligned(PCPDMAUDIOPCMPROPS pProps, uint32_t cb) +{ + AssertPtrReturn(pProps, false); + uint32_t const cbFrame = PDMAudioPropsFrameSize(pProps); + AssertReturn(cbFrame, false); + return cb % cbFrame == 0; +} + +/** + * Converts bytes to frames (rounding down of course). + * + * @returns Number of frames. + * @param pProps PCM properties to use. + * @param cb The number of bytes to convert. + */ +DECLINLINE(uint32_t) PDMAudioPropsBytesToFrames(PCPDMAUDIOPCMPROPS pProps, uint32_t cb) +{ + AssertPtrReturn(pProps, 0); + return PDMAUDIOPCMPROPS_B2F(pProps, cb); +} + +/** + * Converts bytes to milliseconds. + * + * @return Number milliseconds @a cb takes to play or record. + * @param pProps PCM properties to use. + * @param cb The number of bytes to convert. + * + * @note Rounds up the result. + */ +DECLINLINE(uint64_t) PDMAudioPropsBytesToMilli(PCPDMAUDIOPCMPROPS pProps, uint32_t cb) +{ + AssertPtrReturn(pProps, 0); + + /* Check parameters to prevent division by chainsaw: */ + uint32_t const uHz = pProps->uHz; + if (uHz) + { + const unsigned cbFrame = PDMAudioPropsFrameSize(pProps); + if (cbFrame) + { + /* Round cb up to closest frame size: */ + cb = (cb + cbFrame - 1) / cbFrame; + + /* Convert to milliseconds. */ + return (cb * (uint64_t)RT_MS_1SEC + uHz - 1) / uHz; + } + } + return 0; +} + +/** + * Converts bytes to microseconds. + * + * @return Number microseconds @a cb takes to play or record. + * @param pProps PCM properties to use. + * @param cb The number of bytes to convert. + * + * @note Rounds up the result. + */ +DECLINLINE(uint64_t) PDMAudioPropsBytesToMicro(PCPDMAUDIOPCMPROPS pProps, uint32_t cb) +{ + AssertPtrReturn(pProps, 0); + + /* Check parameters to prevent division by chainsaw: */ + uint32_t const uHz = pProps->uHz; + if (uHz) + { + const unsigned cbFrame = PDMAudioPropsFrameSize(pProps); + if (cbFrame) + { + /* Round cb up to closest frame size: */ + cb = (cb + cbFrame - 1) / cbFrame; + + /* Convert to microseconds. */ + return (cb * (uint64_t)RT_US_1SEC + uHz - 1) / uHz; + } + } + return 0; +} + +/** + * Converts bytes to nanoseconds. + * + * @return Number nanoseconds @a cb takes to play or record. + * @param pProps PCM properties to use. + * @param cb The number of bytes to convert. + * + * @note Rounds up the result. + */ +DECLINLINE(uint64_t) PDMAudioPropsBytesToNano(PCPDMAUDIOPCMPROPS pProps, uint32_t cb) +{ + AssertPtrReturn(pProps, 0); + + /* Check parameters to prevent division by chainsaw: */ + uint32_t const uHz = pProps->uHz; + if (uHz) + { + const unsigned cbFrame = PDMAudioPropsFrameSize(pProps); + if (cbFrame) + { + /* Round cb up to closest frame size: */ + cb = (cb + cbFrame - 1) / cbFrame; + + /* Convert to nanoseconds. */ + return (cb * (uint64_t)RT_NS_1SEC + uHz - 1) / uHz; + } + } + return 0; +} + +/** + * Converts bytes to nanoseconds, 64-bit version. + * + * @return Number nanoseconds @a cb takes to play or record. + * @param pProps PCM properties to use. + * @param cb The number of bytes to convert (64-bit). + * + * @note Rounds up the result. + */ +DECLINLINE(uint64_t) PDMAudioPropsBytesToNano64(PCPDMAUDIOPCMPROPS pProps, uint64_t cb) +{ + AssertPtrReturn(pProps, 0); + + /* Check parameters to prevent division by chainsaw: */ + uint32_t const uHz = pProps->uHz; + if (uHz) + { + const unsigned cbFrame = PDMAudioPropsFrameSize(pProps); + if (cbFrame) + { + /* Round cb up to closest frame size: */ + cb = (cb + cbFrame - 1) / cbFrame; + + /* Convert to nanoseconds. */ + return (cb * RT_NS_1SEC + uHz - 1) / uHz; + } + } + return 0; +} + +/** + * Converts frames to bytes. + * + * @returns Number of bytes. + * @param pProps The PCM properties to use. + * @param cFrames Number of audio frames to convert. + * @sa PDMAUDIOPCMPROPS_F2B + */ +DECLINLINE(uint32_t) PDMAudioPropsFramesToBytes(PCPDMAUDIOPCMPROPS pProps, uint32_t cFrames) +{ + AssertPtrReturn(pProps, 0); + return PDMAUDIOPCMPROPS_F2B(pProps, cFrames); +} + +/** + * Converts frames to milliseconds. + * + * @returns milliseconds. + * @param pProps The PCM properties to use. + * @param cFrames Number of audio frames to convert. + * @note No rounding here, result is floored. + */ +DECLINLINE(uint64_t) PDMAudioPropsFramesToMilli(PCPDMAUDIOPCMPROPS pProps, uint32_t cFrames) +{ + AssertPtrReturn(pProps, 0); + + /* Check input to prevent division by chainsaw: */ + uint32_t const uHz = pProps->uHz; + if (uHz) + return ASMMultU32ByU32DivByU32(cFrames, RT_MS_1SEC, uHz); + return 0; +} + +/** + * Converts frames to milliseconds, but not returning more than @a cMsMax + * + * This is a convenience for logging and such. + * + * @returns milliseconds (32-bit). + * @param pProps The PCM properties to use. + * @param cFrames Number of audio frames to convert. + * @param cMsMax Max return value (32-bit). + * @note No rounding here, result is floored. + */ +DECLINLINE(uint32_t) PDMAudioPropsFramesToMilliMax(PCPDMAUDIOPCMPROPS pProps, uint32_t cFrames, uint32_t cMsMax) +{ + AssertPtrReturn(pProps, 0); + + /* Check input to prevent division by chainsaw: */ + uint32_t const uHz = pProps->uHz; + if (uHz) + { + uint32_t const cMsResult = ASMMultU32ByU32DivByU32(cFrames, RT_MS_1SEC, uHz); + return RT_MIN(cMsResult, cMsMax); + } + return 0; +} + +/** + * Converts frames to microseconds. + * + * @returns microseconds. + * @param pProps The PCM properties to use. + * @param cFrames Number of audio frames to convert. + * @note No rounding here, result is floored. + */ +DECLINLINE(uint64_t) PDMAudioPropsFramesToMicro(PCPDMAUDIOPCMPROPS pProps, uint32_t cFrames) +{ + AssertPtrReturn(pProps, 0); + + /* Check input to prevent division by chainsaw: */ + uint32_t const uHz = pProps->uHz; + if (uHz) + return ASMMultU32ByU32DivByU32(cFrames, RT_US_1SEC, uHz); + return 0; +} + +/** + * Converts frames to nanoseconds. + * + * @returns Nanoseconds. + * @param pProps The PCM properties to use. + * @param cFrames Number of audio frames to convert. + * @note No rounding here, result is floored. + */ +DECLINLINE(uint64_t) PDMAudioPropsFramesToNano(PCPDMAUDIOPCMPROPS pProps, uint32_t cFrames) +{ + AssertPtrReturn(pProps, 0); + + /* Check input to prevent division by chainsaw: */ + uint32_t const uHz = pProps->uHz; + if (uHz) + return ASMMultU32ByU32DivByU32(cFrames, RT_NS_1SEC, uHz); + return 0; +} + +/** + * Converts frames to NT ticks (100 ns units). + * + * @returns NT ticks. + * @param pProps The PCM properties to use. + * @param cFrames Number of audio frames to convert. + * @note No rounding here, result is floored. + */ +DECLINLINE(uint64_t) PDMAudioPropsFramesToNtTicks(PCPDMAUDIOPCMPROPS pProps, uint32_t cFrames) +{ + AssertPtrReturn(pProps, 0); + + /* Check input to prevent division by chainsaw: */ + uint32_t const uHz = pProps->uHz; + if (uHz) + return ASMMultU32ByU32DivByU32(cFrames, RT_NS_1SEC / 100, uHz); + return 0; +} + +/** + * Converts milliseconds to frames. + * + * @returns Number of frames + * @param pProps The PCM properties to use. + * @param cMs The number of milliseconds to convert. + * + * @note The result is rounded rather than floored (hysterical raisins). + */ +DECLINLINE(uint32_t) PDMAudioPropsMilliToFrames(PCPDMAUDIOPCMPROPS pProps, uint64_t cMs) +{ + AssertPtrReturn(pProps, 0); + + uint32_t const uHz = pProps->uHz; + uint32_t cFrames; + if (cMs < RT_MS_1SEC) + cFrames = 0; + else + { + cFrames = cMs / RT_MS_1SEC * uHz; + cMs %= RT_MS_1SEC; + } + cFrames += (ASMMult2xU32RetU64(uHz, (uint32_t)cMs) + RT_MS_1SEC - 1) / RT_MS_1SEC; + return cFrames; +} + +/** + * Converts milliseconds to bytes. + * + * @returns Number of bytes (frame aligned). + * @param pProps The PCM properties to use. + * @param cMs The number of milliseconds to convert. + * + * @note The result is rounded rather than floored (hysterical raisins). + */ +DECLINLINE(uint32_t) PDMAudioPropsMilliToBytes(PCPDMAUDIOPCMPROPS pProps, uint64_t cMs) +{ + return PDMAUDIOPCMPROPS_F2B(pProps, PDMAudioPropsMilliToFrames(pProps, cMs)); +} + +/** + * Converts nanoseconds to frames. + * + * @returns Number of frames. + * @param pProps The PCM properties to use. + * @param cNs The number of nanoseconds to convert. + * + * @note The result is rounded rather than floored (hysterical raisins). + */ +DECLINLINE(uint32_t) PDMAudioPropsNanoToFrames(PCPDMAUDIOPCMPROPS pProps, uint64_t cNs) +{ + AssertPtrReturn(pProps, 0); + + uint32_t const uHz = pProps->uHz; + uint32_t cFrames; + if (cNs < RT_NS_1SEC) + cFrames = 0; + else + { + cFrames = cNs / RT_NS_1SEC * uHz; + cNs %= RT_NS_1SEC; + } + cFrames += (ASMMult2xU32RetU64(uHz, (uint32_t)cNs) + RT_NS_1SEC - 1) / RT_NS_1SEC; + return cFrames; +} + +/** + * Converts nanoseconds to frames, 64-bit return. + * + * @returns Number of frames (64-bit). + * @param pProps The PCM properties to use. + * @param cNs The number of nanoseconds to convert. + * + * @note The result is floored! + */ +DECLINLINE(uint64_t) PDMAudioPropsNanoToFrames64(PCPDMAUDIOPCMPROPS pProps, uint64_t cNs) +{ + AssertPtrReturn(pProps, 0); + + uint32_t const uHz = pProps->uHz; + uint64_t cFrames; + if (cNs < RT_NS_1SEC) + cFrames = 0; + else + { + cFrames = cNs / RT_NS_1SEC * uHz; + cNs %= RT_NS_1SEC; + } + cFrames += ASMMult2xU32RetU64(uHz, (uint32_t)cNs) / RT_NS_1SEC; + return cFrames; +} + +/** + * Converts nanoseconds to bytes. + * + * @returns Number of bytes (frame aligned). + * @param pProps The PCM properties to use. + * @param cNs The number of nanoseconds to convert. + * + * @note The result is rounded rather than floored (hysterical raisins). + */ +DECLINLINE(uint32_t) PDMAudioPropsNanoToBytes(PCPDMAUDIOPCMPROPS pProps, uint64_t cNs) +{ + return PDMAUDIOPCMPROPS_F2B(pProps, PDMAudioPropsNanoToFrames(pProps, cNs)); +} + +/** + * Converts nanoseconds to bytes, 64-bit version. + * + * @returns Number of bytes (frame aligned), 64-bit. + * @param pProps The PCM properties to use. + * @param cNs The number of nanoseconds to convert. + * + * @note The result is floored. + */ +DECLINLINE(uint64_t) PDMAudioPropsNanoToBytes64(PCPDMAUDIOPCMPROPS pProps, uint64_t cNs) +{ + return PDMAUDIOPCMPROPS_F2B(pProps, PDMAudioPropsNanoToFrames(pProps, cNs)); +} + +/** + * Clears a sample buffer by the given amount of audio frames with silence (according to the format + * given by the PCM properties). + * + * @param pProps The PCM properties to apply. + * @param pvBuf The buffer to clear. + * @param cbBuf The buffer size in bytes. + * @param cFrames The number of audio frames to clear. Capped at @a cbBuf + * if exceeding the buffer. If the size is an unaligned + * number of frames, the extra bytes may be left + * uninitialized in some configurations. + */ +DECLINLINE(void) PDMAudioPropsClearBuffer(PCPDMAUDIOPCMPROPS pProps, void *pvBuf, size_t cbBuf, uint32_t cFrames) +{ + /* + * Validate input + */ + AssertPtrReturnVoid(pProps); + Assert(pProps->cbSampleX); + if (!cbBuf || !cFrames) + return; + AssertPtrReturnVoid(pvBuf); + + /* + * Decide how much needs clearing. + */ + size_t cbToClear = PDMAudioPropsFramesToBytes(pProps, cFrames); + AssertStmt(cbToClear <= cbBuf, cbToClear = cbBuf); + + Log2Func(("pProps=%p, pvBuf=%p, cFrames=%RU32, fSigned=%RTbool, cbSample=%RU8\n", + pProps, pvBuf, cFrames, pProps->fSigned, pProps->cbSampleX)); + + /* + * Do the job. + */ + if (pProps->fSigned) + RT_BZERO(pvBuf, cbToClear); + else /* Unsigned formats. */ + { + switch (pProps->cbSampleX) + { + case 1: /* 8 bit */ + memset(pvBuf, 0x80, cbToClear); + break; + + case 2: /* 16 bit */ + { + uint16_t *pu16Dst = (uint16_t *)pvBuf; + uint16_t const u16Offset = !pProps->fSwapEndian ? UINT16_C(0x8000) : UINT16_C(0x80); + cbBuf /= sizeof(*pu16Dst); + while (cbBuf-- > 0) + *pu16Dst++ = u16Offset; + break; + } + + case 4: /* 32 bit */ + ASMMemFill32(pvBuf, cbToClear & ~(size_t)(sizeof(uint32_t) - 1), + !pProps->fSwapEndian ? UINT32_C(0x80000000) : UINT32_C(0x80)); + break; + + default: + AssertMsgFailed(("Invalid bytes per sample: %RU8\n", pProps->cbSampleX)); + } + } +} + +/** + * Checks if the given buffer is silence. + * + * @param pProps The PCM properties to use checking the buffer. + * @param pvBuf The buffer to check. + * @param cbBuf The number of bytes to check (must be frame aligned). + */ +DECLINLINE(bool) PDMAudioPropsIsBufferSilence(PCPDMAUDIOPCMPROPS pProps, void const *pvBuf, size_t cbBuf) +{ + /* + * Validate input + */ + AssertPtrReturn(pProps, false); + if (!cbBuf) + return false; + AssertPtrReturn(pvBuf, false); + + /* + * Do the job. + */ + if (pProps->fSigned) + return ASMMemIsZero(pvBuf, cbBuf); + + switch (pProps->cbSampleX) + { + case 1: /* 8 bit */ + return ASMMemIsAllU8(pvBuf, cbBuf, 0x80); + + case 2: /* 16 bit */ + { + uint16_t const *pu16 = (uint16_t const *)pvBuf; + uint16_t const u16Offset = !pProps->fSwapEndian ? UINT16_C(0x8000) : UINT16_C(0x80); + cbBuf /= sizeof(*pu16); + while (cbBuf-- > 0) + if (*pu16 != u16Offset) + return false; + return true; + } + + case 4: /* 32 bit */ + { + uint32_t const *pu32 = (uint32_t const *)pvBuf; + uint32_t const u32Offset = !pProps->fSwapEndian ? UINT32_C(0x80000000) : UINT32_C(0x80); + cbBuf /= sizeof(*pu32); + while (cbBuf-- > 0) + if (*pu32 != u32Offset) + return false; + return true; + } + + default: + AssertMsgFailed(("Invalid bytes per sample: %RU8\n", pProps->cbSampleX)); + return false; + } +} + +/** + * Compares two sets of PCM properties. + * + * @returns @c true if the same, @c false if not. + * @param pProps1 The first set of properties to compare. + * @param pProps2 The second set of properties to compare. + */ +DECLINLINE(bool) PDMAudioPropsAreEqual(PCPDMAUDIOPCMPROPS pProps1, PCPDMAUDIOPCMPROPS pProps2) +{ + uintptr_t idxCh; + AssertPtrReturn(pProps1, false); + AssertPtrReturn(pProps2, false); + + if (pProps1 == pProps2) /* If the pointers match, take a shortcut. */ + return true; + + if (pProps1->uHz != pProps2->uHz) + return false; + if (pProps1->cChannelsX != pProps2->cChannelsX) + return false; + if (pProps1->cbSampleX != pProps2->cbSampleX) + return false; + if (pProps1->fSigned != pProps2->fSigned) + return false; + if (pProps1->fSwapEndian != pProps2->fSwapEndian) + return false; + if (pProps1->fRaw != pProps2->fRaw) + return false; + + idxCh = pProps1->cChannelsX; + while (idxCh-- > 0) + if (pProps1->aidChannels[idxCh] != pProps2->aidChannels[idxCh]) + return false; + + return true; +} + +/** + * Checks whether the given PCM properties are valid or not. + * + * @returns true/false accordingly. + * @param pProps The PCM properties to check. + * + * @remarks This just performs a generic check of value ranges. + * + * @sa PDMAudioStrmCfgIsValid + */ +DECLINLINE(bool) PDMAudioPropsAreValid(PCPDMAUDIOPCMPROPS pProps) +{ + AssertPtrReturn(pProps, false); + + /* Channels. */ + if ( pProps->cChannelsX != 0 + && pProps->cChannelsX <= PDMAUDIO_MAX_CHANNELS + /* Sample size. */ + && ( pProps->cbSampleX == 1 + || pProps->cbSampleX == 2 + || pProps->cbSampleX == 4 + || (pProps->cbSampleX == 8 && pProps->fRaw)) + /* Hertz rate. */ + && pProps->uHz >= 1000 + && pProps->uHz < 1000000 + /* Raw format: Here we only support int64_t as sample size currently, if enabled. */ + && ( !pProps->fRaw + || (pProps->fSigned && pProps->cbSampleX == sizeof(int64_t))) + ) + { + /* A few more sanity checks to see if the structure has been properly initialized (via PDMAudioPropsInit[Ex]). */ + AssertMsgReturn(pProps->cShiftX == PDMAUDIOPCMPROPS_MAKE_SHIFT(pProps), + ("cShift=%u cbSample=%u cChannels=%u\n", pProps->cShiftX, pProps->cbSampleX, pProps->cChannelsX), + false); + AssertMsgReturn(pProps->cbFrame == pProps->cbSampleX * pProps->cChannelsX, + ("cbFrame=%u cbSample=%u cChannels=%u\n", pProps->cbFrame, pProps->cbSampleX, pProps->cChannelsX), + false); + + return true; + } + + return false; +} + +/** + * Get number of bytes per frame. + * + * @returns Number of bytes per audio frame. + * @param pProps PCM properties to use. + * @sa PDMAUDIOPCMPROPS_F2B + */ +DECLINLINE(uint32_t) PDMAudioPropsBytesPerFrame(PCPDMAUDIOPCMPROPS pProps) +{ + return PDMAUDIOPCMPROPS_F2B(pProps, 1 /*cFrames*/); +} + +/** + * Prints PCM properties to the debug log. + * + * @param pProps PCM properties to use. + */ +DECLINLINE(void) PDMAudioPropsLog(PCPDMAUDIOPCMPROPS pProps) +{ + AssertPtrReturnVoid(pProps); + + Log(("uHz=%RU32, cChannels=%RU8, cBits=%RU8%s", + pProps->uHz, pProps->cChannelsX, pProps->cbSampleX * 8, pProps->fSigned ? "S" : "U")); +} + +/** Max necessary buffer space for PDMAudioPropsToString */ +#define PDMAUDIOPROPSTOSTRING_MAX sizeof("16ch S64 4294967296Hz swap raw") + +/** + * Formats the PCM audio properties into a string buffer. + * + * @returns pszDst + * @param pProps PCM properties to use. + * @param pszDst The destination buffer. + * @param cchDst The size of the destination buffer. Recommended to be at + * least PDMAUDIOPROPSTOSTRING_MAX bytes. + */ +DECLINLINE(char *) PDMAudioPropsToString(PCPDMAUDIOPCMPROPS pProps, char *pszDst, size_t cchDst) +{ + /* 2ch S64 44100Hz swap raw */ + RTStrPrintf(pszDst, cchDst, "%uch %c%u %RU32Hz%s%s", + PDMAudioPropsChannels(pProps), PDMAudioPropsIsSigned(pProps) ? 'S' : 'U', PDMAudioPropsSampleBits(pProps), + PDMAudioPropsHz(pProps), pProps->fSwapEndian ? " swap" : "", pProps->fRaw ? " raw" : ""); + return pszDst; +} + + +/********************************************************************************************************************************* +* Stream Configuration Helpers * +*********************************************************************************************************************************/ + +/** + * Initializes a stream configuration from PCM properties. + * + * @returns VBox status code. + * @param pCfg The stream configuration to initialize. + * @param pProps The PCM properties to use. + */ +DECLINLINE(int) PDMAudioStrmCfgInitWithProps(PPDMAUDIOSTREAMCFG pCfg, PCPDMAUDIOPCMPROPS pProps) +{ + AssertPtrReturn(pProps, VERR_INVALID_POINTER); + AssertPtrReturn(pCfg, VERR_INVALID_POINTER); + + RT_ZERO(*pCfg); + pCfg->Backend.cFramesPreBuffering = UINT32_MAX; /* Explicitly set to "undefined". */ + + memcpy(&pCfg->Props, pProps, sizeof(PDMAUDIOPCMPROPS)); + + return VINF_SUCCESS; +} + +/** + * Checks whether stream configuration matches the given PCM properties. + * + * @returns @c true if equal, @c false if not. + * @param pCfg The stream configuration. + * @param pProps The PCM properties to match with. + */ +DECLINLINE(bool) PDMAudioStrmCfgMatchesProps(PCPDMAUDIOSTREAMCFG pCfg, PCPDMAUDIOPCMPROPS pProps) +{ + AssertPtrReturn(pCfg, false); + return PDMAudioPropsAreEqual(pProps, &pCfg->Props); +} + +/** + * Checks whether two stream configuration matches. + * + * @returns @c true if equal, @c false if not. + * @param pCfg1 The first stream configuration. + * @param pCfg2 The second stream configuration. + */ +DECLINLINE(bool) PDMAudioStrmCfgEquals(PCPDMAUDIOSTREAMCFG pCfg1, PCPDMAUDIOSTREAMCFG pCfg2) +{ + if (!pCfg1 || !pCfg2) + return false; + if (pCfg1 == pCfg2) + return pCfg1 != NULL; + if (PDMAudioPropsAreEqual(&pCfg1->Props, &pCfg2->Props)) + return pCfg1->enmDir == pCfg2->enmDir + && pCfg1->enmPath == pCfg2->enmPath + && pCfg1->Device.cMsSchedulingHint == pCfg2->Device.cMsSchedulingHint + && pCfg1->Backend.cFramesPeriod == pCfg2->Backend.cFramesPeriod + && pCfg1->Backend.cFramesBufferSize == pCfg2->Backend.cFramesBufferSize + && pCfg1->Backend.cFramesPreBuffering == pCfg2->Backend.cFramesPreBuffering + && strcmp(pCfg1->szName, pCfg2->szName) == 0; + return false; +} + +/** + * Frees an audio stream allocated by PDMAudioStrmCfgDup(). + * + * @param pCfg The stream configuration to free. + */ +DECLINLINE(void) PDMAudioStrmCfgFree(PPDMAUDIOSTREAMCFG pCfg) +{ + if (pCfg) + RTMemFree(pCfg); +} + +/** + * Checks whether the given stream configuration is valid or not. + * + * @returns true/false accordingly. + * @param pCfg Stream configuration to check. + * + * @remarks This just performs a generic check of value ranges. Further, it + * will assert if the input is invalid. + * + * @sa PDMAudioPropsAreValid + */ +DECLINLINE(bool) PDMAudioStrmCfgIsValid(PCPDMAUDIOSTREAMCFG pCfg) +{ + AssertPtrReturn(pCfg, false); + AssertMsgReturn(pCfg->enmDir >= PDMAUDIODIR_UNKNOWN && pCfg->enmDir < PDMAUDIODIR_END, ("%d\n", pCfg->enmDir), false); + return PDMAudioPropsAreValid(&pCfg->Props); +} + +/** + * Copies one stream configuration to another. + * + * @returns VBox status code. + * @param pDstCfg The destination stream configuration. + * @param pSrcCfg The source stream configuration. + */ +DECLINLINE(int) PDMAudioStrmCfgCopy(PPDMAUDIOSTREAMCFG pDstCfg, PCPDMAUDIOSTREAMCFG pSrcCfg) +{ + AssertPtrReturn(pDstCfg, VERR_INVALID_POINTER); + AssertPtrReturn(pSrcCfg, VERR_INVALID_POINTER); + + /* This used to be VBOX_STRICT only and return VERR_INVALID_PARAMETER, but + that's making release builds work differently from debug & strict builds, + which is a terrible idea: */ + Assert(PDMAudioStrmCfgIsValid(pSrcCfg)); + + memcpy(pDstCfg, pSrcCfg, sizeof(PDMAUDIOSTREAMCFG)); + + return VINF_SUCCESS; +} + +/** + * Duplicates an audio stream configuration. + * + * @returns Pointer to duplicate on success, NULL on failure. Must be freed + * using PDMAudioStrmCfgFree(). + * + * @param pCfg The audio stream configuration to duplicate. + */ +DECLINLINE(PPDMAUDIOSTREAMCFG) PDMAudioStrmCfgDup(PCPDMAUDIOSTREAMCFG pCfg) +{ + AssertPtrReturn(pCfg, NULL); + + PPDMAUDIOSTREAMCFG pDst = (PPDMAUDIOSTREAMCFG)RTMemAllocZ(sizeof(PDMAUDIOSTREAMCFG)); + if (pDst) + { + int rc = PDMAudioStrmCfgCopy(pDst, pCfg); + if (RT_SUCCESS(rc)) + return pDst; + + PDMAudioStrmCfgFree(pDst); + } + return NULL; +} + +/** + * Logs an audio stream configuration. + * + * @param pCfg The stream configuration to log. + */ +DECLINLINE(void) PDMAudioStrmCfgLog(PCPDMAUDIOSTREAMCFG pCfg) +{ + if (pCfg) + LogFunc(("szName=%s enmDir=%RU32 uHz=%RU32 cBits=%RU8%s cChannels=%RU8\n", pCfg->szName, pCfg->enmDir, + pCfg->Props.uHz, pCfg->Props.cbSampleX * 8, pCfg->Props.fSigned ? "S" : "U", pCfg->Props.cChannelsX)); +} + +/** + * Converts a stream command enum value to a string. + * + * @returns Pointer to read-only stream command name on success, + * "bad" if invalid command value. + * @param enmCmd The stream command to name. + */ +DECLINLINE(const char *) PDMAudioStrmCmdGetName(PDMAUDIOSTREAMCMD enmCmd) +{ + switch (enmCmd) + { + case PDMAUDIOSTREAMCMD_INVALID: return "Invalid"; + case PDMAUDIOSTREAMCMD_ENABLE: return "Enable"; + case PDMAUDIOSTREAMCMD_DISABLE: return "Disable"; + case PDMAUDIOSTREAMCMD_PAUSE: return "Pause"; + case PDMAUDIOSTREAMCMD_RESUME: return "Resume"; + case PDMAUDIOSTREAMCMD_DRAIN: return "Drain"; + case PDMAUDIOSTREAMCMD_END: + case PDMAUDIOSTREAMCMD_32BIT_HACK: + break; + /* no default! */ + } + AssertMsgFailedReturn(("Invalid stream command %d\n", enmCmd), "bad"); +} + +/** Max necessary buffer space for PDMAudioStrmCfgToString */ +#define PDMAUDIOSTRMCFGTOSTRING_MAX \ + sizeof("'01234567890123456789012345678901234567890123456789012345678901234' unknown 16ch S64 4294967295Hz swap raw, 9999999ms buffer, 9999999ms period, 9999999ms pre-buffer, 4294967295ms sched, center-lfe") + +/** + * Formats an audio stream configuration. + * + * @param pCfg The stream configuration to stringify. + * @param pszDst The destination buffer. + * @param cbDst The size of the destination buffer. Recommend this be + * at least PDMAUDIOSTRMCFGTOSTRING_MAX bytes. + */ +DECLINLINE(const char *) PDMAudioStrmCfgToString(PCPDMAUDIOSTREAMCFG pCfg, char *pszDst, size_t cbDst) +{ + /* 'front' output 2ch 44100Hz raw, 300ms buffer, 75ms period, 150ms pre-buffer, 10ms sched */ + RTStrPrintf(pszDst, cbDst, + "'%s' %s %uch %c%u %RU32Hz%s%s, %RU32ms buffer, %RU32ms period, %RU32ms pre-buffer, %RU32ms sched%s%s", + pCfg->szName, PDMAudioDirGetName(pCfg->enmDir), PDMAudioPropsChannels(&pCfg->Props), + PDMAudioPropsIsSigned(&pCfg->Props) ? 'S' : 'U', PDMAudioPropsSampleBits(&pCfg->Props), + PDMAudioPropsHz(&pCfg->Props), pCfg->Props.fSwapEndian ? " swap" : "", pCfg->Props.fRaw ? " raw" : "", + PDMAudioPropsFramesToMilliMax(&pCfg->Props, pCfg->Backend.cFramesBufferSize, 9999999), + PDMAudioPropsFramesToMilliMax(&pCfg->Props, pCfg->Backend.cFramesPeriod, 9999999), + PDMAudioPropsFramesToMilliMax(&pCfg->Props, pCfg->Backend.cFramesPreBuffering, 9999999), + pCfg->Device.cMsSchedulingHint, + pCfg->enmPath == PDMAUDIOPATH_UNKNOWN ? "" : ", ", + pCfg->enmPath == PDMAUDIOPATH_UNKNOWN ? "" : PDMAudioPathGetName(pCfg->enmPath) ); + return pszDst; +} + + +/********************************************************************************************************************************* +* Stream Status Helpers * +*********************************************************************************************************************************/ + +/** + * Converts a audio stream state enum value to a string. + * + * @returns Pointer to read-only audio stream state string on success, + * "illegal" if invalid command value. + * @param enmStreamState The state to convert. + */ +DECLINLINE(const char *) PDMAudioStreamStateGetName(PDMAUDIOSTREAMSTATE enmStreamState) +{ + switch (enmStreamState) + { + case PDMAUDIOSTREAMSTATE_INVALID: return "invalid"; + case PDMAUDIOSTREAMSTATE_NOT_WORKING: return "not-working"; + case PDMAUDIOSTREAMSTATE_NEED_REINIT: return "need-reinit"; + case PDMAUDIOSTREAMSTATE_INACTIVE: return "inactive"; + case PDMAUDIOSTREAMSTATE_ENABLED: return "enabled"; + case PDMAUDIOSTREAMSTATE_ENABLED_READABLE: return "enabled-readable"; + case PDMAUDIOSTREAMSTATE_ENABLED_WRITABLE: return "enabled-writable"; + /* no default: */ + case PDMAUDIOSTREAMSTATE_END: + case PDMAUDIOSTREAMSTATE_32BIT_HACK: + break; + } + AssertMsgFailedReturn(("Invalid audio stream state: %d\n", enmStreamState), "illegal"); +} + +/** + * Converts a host audio (backend) stream state enum value to a string. + * + * @returns Pointer to read-only host audio stream state string on success, + * "illegal" if invalid command value. + * @param enmHostAudioStreamState The state to convert. + */ +DECLINLINE(const char *) PDMHostAudioStreamStateGetName(PDMHOSTAUDIOSTREAMSTATE enmHostAudioStreamState) +{ + switch (enmHostAudioStreamState) + { + case PDMHOSTAUDIOSTREAMSTATE_INVALID: return "invalid"; + case PDMHOSTAUDIOSTREAMSTATE_INITIALIZING: return "initializing"; + case PDMHOSTAUDIOSTREAMSTATE_NOT_WORKING: return "not-working"; + case PDMHOSTAUDIOSTREAMSTATE_OKAY: return "okay"; + case PDMHOSTAUDIOSTREAMSTATE_DRAINING: return "draining"; + case PDMHOSTAUDIOSTREAMSTATE_INACTIVE: return "inactive"; + /* no default: */ + case PDMHOSTAUDIOSTREAMSTATE_END: + case PDMHOSTAUDIOSTREAMSTATE_32BIT_HACK: + break; + } + AssertMsgFailedReturn(("Invalid host audio stream state: %d\n", enmHostAudioStreamState), "illegal"); +} + +/** @} */ + +#endif /* !VBOX_INCLUDED_vmm_pdmaudioinline_h */ |