MIDIManager.cxx

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/*
 * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
 *                         UNIVERSITAT POMPEU FABRA
 *
 *
 * 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; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include "MIDIManager.hxx"
#include "MIDIDevice.hxx"
#include "MIDIDeviceList.hxx"
#include "MIDIIn.hxx"
#include "MIDIOut.hxx"
#include "MIDIClocker.hxx"
#include <algorithm>
using std::find ;


namespace CLAM
{

MIDIManager::MIDIManager() throw(Err)
:mStarted(false)
{
        _Current(true,this);
}

MIDIManager::~MIDIManager()
{
        std::vector<MIDIDevice*>::iterator it;

        it = mDevices.begin();
        
        while (it!=mDevices.end())
        {
                MIDIDevice* d = *it;

                it = mDevices.erase(it);
                delete d;
        }

        _Current(true,0);
}

MIDIDevice* MIDIManager::FindDevice(const std::string& name)
{
        /* Find a created device */
        std::vector<MIDIDevice*>::iterator it;

        for (it = mDevices.begin(); it!=mDevices.end(); it++)
        {
                if ((*it)->mName == name ) return *it;
        }
        return 0;
}

void MIDIManager::Start(void) throw(Err)
{
        std::vector<MIDIDevice*>::iterator it;

        it = mDevices.begin();
        
        while (it!=mDevices.end())
        {
                MIDIDevice* d = *it;

                if (d->mInputs.size()==0 && 
                    d->mOutputs.size()==0)
                {
                        it = mDevices.erase(it);
                        delete d;
                }else{
                        it++;
                }
        }       
        
        for (it = mDevices.begin(); it!=mDevices.end(); it++)
        {
                (*it)->Start();
        }

        mStarted = true;
}

void MIDIManager::Stop(void) throw(Err)
{
        std::vector<MIDIDevice*>::iterator it;

        for (it = mDevices.begin(); it!=mDevices.end(); it++)
        {
                (*it)->Stop();
        }
        
        mStarted = false;
}


void MIDIManager::Check(void)
{
        CLAM_DEBUG_ASSERT(mStarted,"MIDIManager not started before calling MIDIManager::Check()\n");
        
        std::vector<MIDIDevice*>::iterator it;

        for (it = mDevices.begin(); it!=mDevices.end(); it++)
        {
                (*it)->Read();
        }
}


MIDIDevice* MIDIManager::FindOrCreateDevice(const std::string& name)
{
        std::string arch =   name.substr(0,name.find(":",0));
        std::string device = name.substr(name.find(":",0)+1,name.size());

        if (arch == "" || device == "") 
        {
                std::string msg = "MIDIManager::FindOrCreateDevice(...): Invalid device name: ";
                msg       += name;
                throw Err(msg.c_str());
        }
        
        if (arch == "default")
        {
                arch = DEFAULT_MIDI_ARCH; 
        }

        MIDIDeviceList* list = FindList(arch);

        if (list==0)
        {
                std::string errstr;
                errstr = "MIDIManager::FindOrCreateDevice(): "
                        "Don't have a list of \""+arch+"\" devices";
                throw Err((char*) errstr.c_str());
        }

        if (list->AvailableDevices().size()==0)
        {
                std::string errstr;
                errstr = "MIDIManager::FindOrCreateDevice(): "
                        "Don't have any \""+arch+"\" devices available";
                throw Err((char*) errstr.c_str());
        }

        if (device == "default")
        {
                device = list->DefaultDevice();
        }

        std::vector<std::string>::const_iterator it;

        for (
                it = list->AvailableDevices().begin(); 
                it != list->AvailableDevices().end();
                it++)
        {
                if (*it == device) break;
                break;
        }
        
/*      if (find(list->AvailableDevices().begin(),
                         list->AvailableDevices().end(),
                         device) == 
                list->AvailableDevices().end())
*/
        if (it == list->AvailableDevices().end())
        {
                std::string errstr;
                errstr = "MIDIManager::FindOrCreateDevice(): "
                        "No device \""+device+"\" available in architecture \""+arch+"\".\n";
                throw Err((char*) errstr.c_str());
        }

        std::string real_name = arch+":"+device;

        MIDIDevice* mididevice = FindDevice(real_name);

        if (mididevice==0) {
                
                mididevice = list->Create(real_name,device);

                if (mididevice==0)
                {
                        std::string errstr;
                        errstr = "MIDIManager::FindOrCreateDevice(): Don't know how to make device "+real_name;
                        throw Err((char*) errstr.c_str());
                }
                else
                {
                        mDevices.push_back(mididevice);
                }
        }
        return mididevice;
}


bool MIDIManager::Register(MIDIIn& in)
{
        MIDIDevice* device = FindOrCreateDevice(in.mConfig.GetDevice());
        return device->Register(this,in);
}

bool MIDIManager::Register(MIDIClocker& cl)
{
        MIDIDevice* device = FindOrCreateDevice(cl.mConfig.GetDevice());
        return device->Register(this,cl);
}

bool MIDIManager::Register(MIDIOut& out)
{
        MIDIDevice* device = FindOrCreateDevice(out.mConfig.GetDevice());
        return device->Register(this,out);
}

MIDIDeviceList* MIDIManager::FindList(const std::string& arch)
{
        unsigned int i;
        std::string tmp = arch;

        if (tmp == "default")
                tmp = DEFAULT_MIDI_ARCH; 

        for (i=0;i<DeviceLists().size();i++)
        {
                if (DeviceLists()[i]->ArchName() == tmp)
                {
                        return DeviceLists()[i];
                }
        }

        return 0;
}


}