Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 279 insertions, 0 deletions

diff --git a/libkmid/voiceman.cc b/libkmid/voiceman.cc
new file mode 100644
index 000000000..8e7863720
--- /dev/null
+++ b/libkmid/voiceman.cc
@@ -0,0 +1,279 @@
+/**************************************************************************
+
+    voiceman.cc - The VoiceManager class handles a set of voices for synths
+    This file is part of LibKMid 0.9.5
+    Copyright (C) 1997,98,99,2000  Antonio Larrosa Jimenez
+    LibKMid's homepage : http://www.arrakis.es/~rlarrosa/libkmid.html
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+ 
+    This library 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
+    Library General Public License for more details.
+ 
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+
+    Send comments and bug fixes to Antonio Larrosa <larrosa@kde.org>
+
+***************************************************************************/
+
+#include "voiceman.h"
+#include <stdio.h>
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+VoiceManager::VoiceManager(int totalvoices)
+{
+  nvoices=totalvoices;
+
+  FirstVoice=new voice;
+  FirstVoice->id=0;
+  FirstVoice->channel=0;
+  FirstVoice->note=0;
+  FirstVoice->used=0;
+  FirstVoice->prev=NULL;
+
+  voice *ptrb=FirstVoice;
+  voice *ptr=NULL;
+  int i;
+  for (i=1;i<nvoices;i++)
+  {
+    ptr=new voice;
+    ptrb->next=ptr;
+    ptr->id=i;
+    ptr->channel=0;
+    ptr->note=0;
+    ptr->used=0;
+    ptr->prev=ptrb;    
+    ptrb=ptr;
+  }
+  LastVoice=ptr;
+  LastVoice->next=NULL;
+  LastnotusedVoice=LastVoice;
+
+  VoiceList=new voice *[nvoices];
+  ptr=FirstVoice;
+  for (i=0;i<nvoices;i++)
+  {
+    VoiceList[i]=ptr;
+    ptr=ptr->next; 
+  }
+  searcher_aid=new voice;
+}
+
+VoiceManager::~VoiceManager()
+{
+  voice *ptr=FirstVoice;
+  voice *ptr2;
+  while (ptr!=NULL)
+  {
+    ptr2=ptr->next;
+    delete ptr;
+    ptr=ptr2;
+  }
+  FirstVoice=NULL;
+  LastVoice=NULL;
+  LastnotusedVoice=NULL;
+
+  delete [] VoiceList;
+  VoiceList=NULL;
+
+  delete searcher_aid;
+}
+
+void VoiceManager::clearLists(void)
+{
+#ifdef VOICEMANDEBUG
+  printf("voicemanager::cleanLists\n");
+#endif
+  voice *ptr=FirstVoice;
+  voice *ptr2=FirstVoice;
+  while (ptr!=NULL)
+  {
+    ptr->used=0;
+    ptr2=ptr;
+    ptr=ptr->next;
+  }
+  LastVoice=ptr2;
+  LastnotusedVoice=ptr2;
+
+}
+
+int VoiceManager::allocateVoice(int chn,int key)
+{
+  // First, we take the allocated voice out of the first place of the list
+  if ((LastnotusedVoice!=NULL)&&(LastnotusedVoice->id==FirstVoice->id))
+  {
+#ifdef VOICEMANDEBUG
+    printf("Used last voice !\n");
+#endif
+    LastnotusedVoice=NULL;
+  }
+  voice *newvoice=FirstVoice;
+  FirstVoice=FirstVoice->next;
+  FirstVoice->prev=NULL;
+
+#ifdef VOICEMANDEBUG
+  printf("Allocating id :%d\n",newvoice->id);
+#endif
+  // then we put the allocated voice at the end of the list
+  LastVoice->next=newvoice;
+  newvoice->prev=LastVoice;
+  LastVoice=newvoice;
+  LastVoice->next=NULL;
+
+  newvoice->channel=chn;
+  newvoice->note=key;
+
+#ifdef VOICEMANDEBUG
+  if (newvoice->used==1) 
+  {
+    printf("Replacing voice : %d\n",newvoice->id);
+  }
+#endif
+  newvoice->used=1;
+
+  //dispStat();
+  return newvoice->id;
+}
+
+void VoiceManager::deallocateVoice(int id)
+{
+  voice *delvoice=VoiceList[id];
+#ifdef VOICEMANDEBUG
+  printf("Deallocating id :%d\n",id);
+#endif
+  if (delvoice->id==LastVoice->id)
+  {
+    LastVoice=delvoice->prev;
+    LastVoice->next=NULL;
+
+    if (LastnotusedVoice==NULL)
+    {
+      delvoice->next=FirstVoice;
+      FirstVoice->prev=delvoice;
+      FirstVoice=delvoice;
+      FirstVoice->prev=NULL;
+      LastnotusedVoice=FirstVoice;
+    }
+    else
+    {
+      if (LastnotusedVoice->next==NULL)
+      {
+	LastnotusedVoice->next=delvoice;
+	delvoice->prev=LastnotusedVoice;
+	delvoice->next=NULL;
+	LastnotusedVoice=delvoice;
+	LastVoice=delvoice;
+      }
+      else
+      {
+	delvoice->next=LastnotusedVoice->next;
+	delvoice->next->prev=delvoice;
+	delvoice->prev=LastnotusedVoice;
+	LastnotusedVoice->next=delvoice;
+	LastnotusedVoice=delvoice;
+      }
+    }
+  }
+  else
+  {
+    if (delvoice->prev!=NULL)
+    {
+      delvoice->prev->next=delvoice->next;
+      delvoice->next->prev=delvoice->prev;
+      if (LastnotusedVoice==NULL)
+      {
+	delvoice->next=FirstVoice;
+	FirstVoice->prev=delvoice;
+	FirstVoice=delvoice;
+	FirstVoice->prev=NULL;
+	LastnotusedVoice=FirstVoice;                                                    }
+      else
+      {
+	if (LastnotusedVoice->next==NULL)
+	{
+	  LastnotusedVoice->next=delvoice;
+	  delvoice->prev=LastnotusedVoice;
+	  delvoice->next=NULL;
+	  LastnotusedVoice=delvoice;
+	  LastVoice=delvoice;
+	}
+	else
+	{
+	  delvoice->next=LastnotusedVoice->next;
+	  delvoice->next->prev=delvoice;
+	  delvoice->prev=LastnotusedVoice;
+	  LastnotusedVoice->next=delvoice;
+	  LastnotusedVoice=delvoice;
+	}
+      }
+    }
+  }
+  delvoice->used=0;
+
+  //  dispStat();
+}
+
+void VoiceManager::initSearch(void)
+{
+  searcher=searcher_aid;
+  searcher_aid->prev=LastVoice;
+}
+
+int VoiceManager::search(int chn)
+{
+  if (searcher==NULL) return -1;
+  searcher=searcher->prev;
+
+  while (searcher!=NULL)
+  {
+    if (searcher->used==0) return -1;
+    if (searcher->channel==chn) 
+    {	
+      return searcher->id;
+    }
+    searcher=searcher->prev;
+  }
+  return -1;
+}
+
+int VoiceManager::search(int chn,int note)
+{
+  if (searcher==NULL) return -1;
+  searcher=searcher->prev;
+  while ((searcher!=NULL))
+  {
+    if (searcher->used==0) return -1;
+    if ((searcher->channel==chn)&&(searcher->note==note)) 
+    {
+      return searcher->id;
+    }
+    searcher=searcher->prev;
+  }
+  return -1;
+}
+
+/*
+void VoiceManager::dispStat(void)
+{
+#ifdef VOICEMANDEBUG
+  printf("Stats\n");
+  voice *ptr=FirstVoice;
+  while (ptr!=NULL)
+  {
+    printf("Voice %d is %s\n",ptr->id,(ptr->used==0)?("off"):("on"));
+    ptr=ptr->next;
+  }
+  if (LastnotusedVoice!=NULL) printf("LnuV = %d\n",LastnotusedVoice->id);
+#endif
+}
+*/