TextFileMIDIDevice.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 "MIDIIn.hxx"
#include <stdio.h>
#include "MIDIDeviceList.hxx"
#include "MIDIDevice.hxx"

namespace CLAM {

        class TextFileMIDIDevice: public MIDIDevice
        {
        private:
                std::string mDevice;
                FILE* mOut;
                FILE* mIn;
                TControlData mClock;
        public:
                TextFileMIDIDevice(const std::string& name,const std::string& device);
                ~TextFileMIDIDevice();

                void ConcreteStart(void) throw(Err);
                void ConcreteStop(void) throw(Err);

                void Read(void) throw(Err);
                void Write(unsigned char* msg,int size) throw(Err);

                void SetClock(TControlData val) { mClock = val; }

        };

        TextFileMIDIDevice::TextFileMIDIDevice(const std::string& name,const std::string& device): 
                MIDIDevice(name)
        {
                mDevice = device;
                mOut = 0;
                mIn = 0;
                mClock = 0;
        }

        void TextFileMIDIDevice::ConcreteStart(void) throw(Err)
        {
                if (mOut) fclose(mOut);
                if (mIn) fclose(mIn);

                mIn = 0;
                mOut = 0;
                
                if (mInputs.size() && mOutputs.size() && mDevice!="-")
                {
                        throw Err("TextFileMIDIDevice: Cannot use the same file for reading and writing");
                }
                if (mInputs.size())
                {
                        if (mDevice == "-")
                                mIn = stdin;
                        else
                                mIn = fopen(mDevice.c_str(),"r");
                }
                if (mOutputs.size())
                {
                        if (mDevice == "-")
                                mOut = stdout;
                        else
                                mOut = fopen(mDevice.c_str(),"w");
                }
        }

        void TextFileMIDIDevice::ConcreteStop(void) throw(Err)
        {
                if (mOut) fclose(mOut);
                if (mIn) fclose(mOut);
                mOut = 0;
                mIn = 0;
        }

        void TextFileMIDIDevice::Write(unsigned char* msg,int size) throw(Err)
        {
                printf("TextFileMIDIDevice::Write:");
                printf("%f",mClock);
                for (int i=0;i<size;i++)
                {
                        printf(" 0x%02x",msg[i]);
                }
                printf("\n");
                fflush(stdout);
                
                fprintf(mOut,"%f",mClock);
                for (int i=0;i<size;i++)
                {
                        fprintf(mOut," 0x%02x",msg[i]);
                }
                fprintf(mOut,"\n");
        }

        void TextFileMIDIDevice::Read(void) throw(Err)
        {
        }

        TextFileMIDIDevice::~TextFileMIDIDevice()
        {
                Stop();
        }

        class TextFileMIDIDeviceList: public MIDIDeviceList
        {
                static TextFileMIDIDeviceList sDevices;

                TextFileMIDIDeviceList()
                        :MIDIDeviceList(std::string("textfile"))
                {
                        mAvailableDevices.push_back("-");

                        AddMe();
                }
        public:

                std::string DefaultDevice(void)
                {
                        return "-";
                }

                MIDIDevice* Create(
                        const std::string& name,const std::string& device)
                {
                        return new TextFileMIDIDevice(name,device);
                }
        };

        TextFileMIDIDeviceList TextFileMIDIDeviceList::sDevices;
}