--- a/src/java.desktop/unix/native/libjsound/PLATFORM_API_LinuxOS_ALSA_PCMUtils.c Thu Mar 22 14:10:30 2018 -0700
+++ /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_LinuxOS_ALSA_PCMUtils.h"
-#include "PLATFORM_API_LinuxOS_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 */