2019-08-24 Fred Gleason <fredg@paravelsystems.com>

* Refactored rdalsaconfig(8) to use ALSA device IDs rather than ordinal numbers in asound.confO(5).
2025-12-15 00:51:25 +01:00 · 2019-08-24 09:16:18 -04:00
parent e62b02f179
commit f6d220c56c
12 changed files with 541 additions and 548 deletions
--- a/utils/rdalsaconfig/rdalsamodel.cpp
+++ b/utils/rdalsaconfig/rdalsamodel.cpp
@@ -0,0 +1,153 @@
+// rdalsamodel.cpp
+//
+// Abstract an ALSA configuration. 
+//
+//   (C) Copyright 2009-2019 Fred Gleason <fredg@paravelsystems.com>
+//
+//   This program is free software; you can redistribute it and/or modify
+//   it under the terms of the GNU General Public License version 2 as
+//   published by the Free Software Foundation.
+//
+//   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, write to the Free Software
+//   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <alsa/asoundlib.h>
+
+#include <qstringlist.h>
+
+#include <rdalsamodel.h>
+
+RDAlsaModel::RDAlsaModel(QObject *parent)
+  : QAbstractListModel(parent)
+{
+  LoadSystemConfig();
+}
+
+
+int RDAlsaModel::rowCount(const QModelIndex &parent) const
+{
+  int rows=0;
+
+  for(int i=0;i<model_alsa_cards.size();i++) {
+    rows+=model_alsa_cards.at(i)->pcmQuantity();
+  }
+
+  return rows;
+}
+
+
+QVariant RDAlsaModel::data(const QModelIndex &index,int role) const
+{
+  int row=index.row();
+
+  switch((Qt::ItemDataRole)role) {
+  case Qt::DisplayRole:
+    return QVariant(model_alsa_cards.at(model_card_index.at(row))->name()+" - "+
+    		    model_alsa_cards.at(model_card_index.at(row))->
+		    pcmName(model_pcm_index.at(row)));
+    break;
+
+  case Qt::DecorationRole:
+  case Qt::EditRole:
+  case Qt::ToolTipRole:
+  case Qt::StatusTipRole:
+  case Qt::WhatsThisRole:
+  case Qt::SizeHintRole:
+  case Qt::FontRole:
+  case Qt::TextAlignmentRole:
+  case Qt::BackgroundColorRole:
+  case Qt::TextColorRole:
+  case Qt::CheckStateRole:
+  case Qt::AccessibleTextRole:
+  case Qt::AccessibleDescriptionRole:
+  case Qt::InitialSortOrderRole:
+  case Qt::DisplayPropertyRole:
+  case Qt::DecorationPropertyRole:
+  case Qt::ToolTipPropertyRole:
+  case Qt::StatusTipPropertyRole:
+  case Qt::WhatsThisPropertyRole:
+  case Qt::UserRole:
+    break;
+  }
+
+  return QVariant();
+}
+
+
+QVariant RDAlsaModel::headerData(int section,Qt::Orientation orient,
+				 int role) const
+{
+  switch(orient) {
+  case Qt::Horizontal:
+    return QVariant(tr("ALSA Devices"));
+
+  case Qt::Vertical:
+    break;
+  }
+
+  return QVariant();
+}
+
+
+QModelIndex RDAlsaModel::indexOf(const QString &card_id,int pcm_num) const
+{
+  bool ok=false;
+  int cardnum=card_id.toUInt(&ok);
+
+  if(ok) {
+    for(int i=0;i<model_card_index.size();i++) {
+      if((model_card_index.at(i)==cardnum)&&
+	 (model_pcm_index.at(i)==pcm_num)) {
+	return createIndex(i,0);
+      }
+    }
+  }
+  else {
+    for(int i=0;i<model_card_index.size();i++) {
+      if((model_alsa_cards.at(model_card_index.at(i))->id()==card_id)&&
+	 (model_pcm_index.at(i)==pcm_num)) {
+	return createIndex(i,0);
+      }
+    }
+  }
+
+  return QModelIndex();
+}
+
+
+RDAlsaCard *RDAlsaModel::card(const QModelIndex &index) const
+{
+  return model_alsa_cards.at(model_card_index.at(index.row()));
+}
+
+
+int RDAlsaModel::pcmNumber(const QModelIndex &index) const
+{
+  return model_pcm_index.at(index.row());
+}
+
+
+void RDAlsaModel::LoadSystemConfig()
+{
+  snd_ctl_t *snd_ctl=NULL;
+  int index=0;
+
+  while(snd_ctl_open(&snd_ctl,QString().sprintf("hw:%d",index),0)>=0) {
+    model_alsa_cards.push_back(new RDAlsaCard(snd_ctl,index));
+    for(int i=0;i<model_alsa_cards.back()->pcmQuantity();i++) {
+      model_card_index.push_back(index);
+      model_pcm_index.push_back(i);
+    }
+    snd_ctl_close(snd_ctl);
+    index++;
+  }
+}