diff -r 6e2d71029781 -r 148e29df1644 src/java.desktop/unix/native/libjsound/PLATFORM_API_BsdOS_ALSA_PCMUtils.c --- a/src/java.desktop/unix/native/libjsound/PLATFORM_API_BsdOS_ALSA_PCMUtils.c Fri Mar 23 09:26:59 2018 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,292 +0,0 @@ -/* - * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. Oracle designates this - * particular file as subject to the "Classpath" exception as provided - * by Oracle in the LICENSE file that accompanied this code. - * - * This code 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 - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ - -//#define USE_ERROR -//#define USE_TRACE - -#include "PLATFORM_API_BsdOS_ALSA_PCMUtils.h" -#include "PLATFORM_API_BsdOS_ALSA_CommonUtils.h" - - - -// callback for iteration through devices -// returns TRUE if iteration should continue -// NOTE: cardinfo may be NULL (for "default" device) -typedef int (*DeviceIteratorPtr)(UINT32 deviceID, snd_pcm_info_t* pcminfo, - snd_ctl_card_info_t* cardinfo, void *userData); - -// for each ALSA device, call iterator. userData is passed to the iterator -// returns total number of iterations -int iteratePCMDevices(DeviceIteratorPtr iterator, void* userData) { - int count = 0; - int subdeviceCount; - int card, dev, subDev; - char devname[16]; - int err; - snd_ctl_t *handle; - snd_pcm_t *pcm; - snd_pcm_info_t* pcminfo; - snd_ctl_card_info_t *cardinfo, *defcardinfo = NULL; - UINT32 deviceID; - int doContinue = TRUE; - - snd_pcm_info_malloc(&pcminfo); - snd_ctl_card_info_malloc(&cardinfo); - - // 1st try "default" device - err = snd_pcm_open(&pcm, ALSA_DEFAULT_DEVICE_NAME, - SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK); - if (err < 0) { - // try with the other direction - err = snd_pcm_open(&pcm, ALSA_DEFAULT_DEVICE_NAME, - SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK); - } - if (err < 0) { - ERROR1("ERROR: snd_pcm_open (\"default\"): %s\n", snd_strerror(err)); - } else { - err = snd_pcm_info(pcm, pcminfo); - snd_pcm_close(pcm); - if (err < 0) { - ERROR1("ERROR: snd_pcm_info (\"default\"): %s\n", - snd_strerror(err)); - } else { - // try to get card info - card = snd_pcm_info_get_card(pcminfo); - if (card >= 0) { - sprintf(devname, ALSA_HARDWARE_CARD, card); - if (snd_ctl_open(&handle, devname, SND_CTL_NONBLOCK) >= 0) { - if (snd_ctl_card_info(handle, cardinfo) >= 0) { - defcardinfo = cardinfo; - } - snd_ctl_close(handle); - } - } - // call callback function for the device - if (iterator != NULL) { - doContinue = (*iterator)(ALSA_DEFAULT_DEVICE_ID, pcminfo, - defcardinfo, userData); - } - count++; - } - } - - // iterate cards - card = -1; - while (doContinue) { - if (snd_card_next(&card) < 0) { - break; - } - if (card < 0) { - break; - } - sprintf(devname, ALSA_HARDWARE_CARD, card); - TRACE1("Opening alsa device \"%s\"...\n", devname); - err = snd_ctl_open(&handle, devname, SND_CTL_NONBLOCK); - if (err < 0) { - ERROR2("ERROR: snd_ctl_open, card=%d: %s\n", - card, snd_strerror(err)); - } else { - err = snd_ctl_card_info(handle, cardinfo); - if (err < 0) { - ERROR2("ERROR: snd_ctl_card_info, card=%d: %s\n", - card, snd_strerror(err)); - } else { - dev = -1; - while (doContinue) { - if (snd_ctl_pcm_next_device(handle, &dev) < 0) { - ERROR0("snd_ctl_pcm_next_device\n"); - } - if (dev < 0) { - break; - } - snd_pcm_info_set_device(pcminfo, dev); - snd_pcm_info_set_subdevice(pcminfo, 0); - snd_pcm_info_set_stream(pcminfo, SND_PCM_STREAM_PLAYBACK); - err = snd_ctl_pcm_info(handle, pcminfo); - if (err == -ENOENT) { - // try with the other direction - snd_pcm_info_set_stream(pcminfo, SND_PCM_STREAM_CAPTURE); - err = snd_ctl_pcm_info(handle, pcminfo); - } - if (err < 0) { - if (err != -ENOENT) { - ERROR2("ERROR: snd_ctl_pcm_info, card=%d: %s", - card, snd_strerror(err)); - } - } else { - subdeviceCount = needEnumerateSubdevices(ALSA_PCM) ? - snd_pcm_info_get_subdevices_count(pcminfo) : 1; - if (iterator!=NULL) { - for (subDev = 0; subDev < subdeviceCount; subDev++) { - deviceID = encodeDeviceID(card, dev, subDev); - doContinue = (*iterator)(deviceID, pcminfo, - cardinfo, userData); - count++; - if (!doContinue) { - break; - } - } - } else { - count += subdeviceCount; - } - } - } // of while(doContinue) - } - snd_ctl_close(handle); - } - } - snd_ctl_card_info_free(cardinfo); - snd_pcm_info_free(pcminfo); - return count; -} - -int getAudioDeviceCount() { - initAlsaSupport(); - return iteratePCMDevices(NULL, NULL); -} - -int deviceInfoIterator(UINT32 deviceID, snd_pcm_info_t* pcminfo, - snd_ctl_card_info_t* cardinfo, void* userData) { - char buffer[300]; - ALSA_AudioDeviceDescription* desc = (ALSA_AudioDeviceDescription*)userData; -#ifdef ALSA_PCM_USE_PLUGHW - int usePlugHw = 1; -#else - int usePlugHw = 0; -#endif - - initAlsaSupport(); - if (desc->index == 0) { - // we found the device with correct index - *(desc->maxSimultaneousLines) = needEnumerateSubdevices(ALSA_PCM) ? - 1 : snd_pcm_info_get_subdevices_count(pcminfo); - *desc->deviceID = deviceID; - buffer[0]=' '; buffer[1]='['; - // buffer[300] is enough to store the actual device string w/o overrun - getDeviceStringFromDeviceID(&buffer[2], deviceID, usePlugHw, ALSA_PCM); - strncat(buffer, "]", sizeof(buffer) - strlen(buffer) - 1); - strncpy(desc->name, - (cardinfo != NULL) - ? snd_ctl_card_info_get_id(cardinfo) - : snd_pcm_info_get_id(pcminfo), - desc->strLen - strlen(buffer)); - strncat(desc->name, buffer, desc->strLen - strlen(desc->name)); - strncpy(desc->vendor, "ALSA (http://www.alsa-project.org)", desc->strLen); - strncpy(desc->description, - (cardinfo != NULL) - ? snd_ctl_card_info_get_name(cardinfo) - : snd_pcm_info_get_name(pcminfo), - desc->strLen); - strncat(desc->description, ", ", desc->strLen - strlen(desc->description)); - strncat(desc->description, snd_pcm_info_get_id(pcminfo), desc->strLen - strlen(desc->description)); - strncat(desc->description, ", ", desc->strLen - strlen(desc->description)); - strncat(desc->description, snd_pcm_info_get_name(pcminfo), desc->strLen - strlen(desc->description)); - getALSAVersion(desc->version, desc->strLen); - TRACE4("Returning %s, %s, %s, %s\n", desc->name, desc->vendor, desc->description, desc->version); - return FALSE; // do not continue iteration - } - desc->index--; - return TRUE; -} - -// returns 0 if successful -int openPCMfromDeviceID(int deviceID, snd_pcm_t** handle, int isSource, int hardware) { - char buffer[200]; - int ret; - - initAlsaSupport(); - getDeviceStringFromDeviceID(buffer, deviceID, !hardware, ALSA_PCM); - - TRACE1("Opening ALSA device %s\n", buffer); - ret = snd_pcm_open(handle, buffer, - isSource?SND_PCM_STREAM_PLAYBACK:SND_PCM_STREAM_CAPTURE, - SND_PCM_NONBLOCK); - if (ret != 0) { - ERROR1("snd_pcm_open returned error code %d \n", ret); - *handle = NULL; - } - return ret; -} - - -int getAudioDeviceDescriptionByIndex(ALSA_AudioDeviceDescription* desc) { - initAlsaSupport(); - TRACE1(" getAudioDeviceDescriptionByIndex(mixerIndex = %d\n", desc->index); - iteratePCMDevices(&deviceInfoIterator, desc); - return (desc->index == 0)?TRUE:FALSE; -} - -// returns 1 if successful -// enc: 0 for PCM, 1 for ULAW, 2 for ALAW (see DirectAudio.h) -int getFormatFromAlsaFormat(snd_pcm_format_t alsaFormat, - int* sampleSizeInBytes, int* significantBits, - int* isSigned, int* isBigEndian, int* enc) { - - *sampleSizeInBytes = (snd_pcm_format_physical_width(alsaFormat) + 7) / 8; - *significantBits = snd_pcm_format_width(alsaFormat); - - // defaults - *enc = 0; // PCM - *isSigned = (snd_pcm_format_signed(alsaFormat) > 0); - *isBigEndian = (snd_pcm_format_big_endian(alsaFormat) > 0); - - // non-PCM formats - if (alsaFormat == SND_PCM_FORMAT_MU_LAW) { // Mu-Law - *sampleSizeInBytes = 8; *enc = 1; *significantBits = *sampleSizeInBytes; - } - else if (alsaFormat == SND_PCM_FORMAT_A_LAW) { // A-Law - *sampleSizeInBytes = 8; *enc = 2; *significantBits = *sampleSizeInBytes; - } - else if (snd_pcm_format_linear(alsaFormat) < 1) { - return 0; - } - return (*sampleSizeInBytes > 0); -} - -// returns 1 if successful -int getAlsaFormatFromFormat(snd_pcm_format_t* alsaFormat, - int sampleSizeInBytes, int significantBits, - int isSigned, int isBigEndian, int enc) { - *alsaFormat = SND_PCM_FORMAT_UNKNOWN; - - if (enc == 0) { - *alsaFormat = snd_pcm_build_linear_format(significantBits, - sampleSizeInBytes * 8, - isSigned?0:1, - isBigEndian?1:0); - } - else if ((sampleSizeInBytes == 1) && (significantBits == 8)) { - if (enc == 1) { // ULAW - *alsaFormat = SND_PCM_FORMAT_MU_LAW; - } - else if (enc == 2) { // ALAW - *alsaFormat = SND_PCM_FORMAT_A_LAW; - } - } - return (*alsaFormat == SND_PCM_FORMAT_UNKNOWN)?0:1; -} - - -/* end */