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#include <sharedlibs.h>

#include <FL/fl_message.H>

void SmartLoader::SmartFind(const char* filename,const char* absprogpath,char* result)

{

/* Find the given file in a clever way:

 *    Search the given path first

 *       (on the Mac, perhaps recursively)

 *          Then the environment PATH variable

 *             and finally any predefined library paths */

	result[0]=(char)0;

	hd24utils::findfile(filename,absprogpath,result);

	if (strlen(result)!=0) 

	{

	    // found it already

	   return;

	}



	hd24utils::findfile(filename,getenv("PATH"),result);

   	if (strlen(result)!=0) 

   	{

       		// found it already

           	return;

        }



        hd24utils::findfile(filename,DEFAULTLIBPATH,result);

        if (strlen(result)!=0) 

        {

        	// found it already

                return;

        }

        return;

};



PortAudioWrapper::PortAudioWrapper(char* absprogpath)

{

	libloaded=false;

	Pa_Initialize=NULL;

	Pa_Terminate=NULL;

	char result[2048];

	SmartFind(LIBFILE_PORTAUDIO,absprogpath,&result[0]);



	string abslib="";

	abslib+=result;

	abslib+=LIBFILE_PORTAUDIO;

	#if (RECORDERDEBUG==1)

		cout << "Opening from smartpath: " << abslib.c_str() << endl; 

	#endif	       



	LIBHANDLE_T* handle=dlopen(abslib.c_str(),RTLD_NOW);

	if (handle==NULL) {

	#if (RECORDERDEBUG==1)

			cout << "Fail. Opening from default path instead." << endl; 

	#endif	       



		handle=dlopen(LIBFILE_PORTAUDIO,RTLD_NOW);

		if (handle==NULL) {

	#if (RECORDERDEBUG==1)

			cout << dlerror() << endl; 

	#endif	       

		} else {

	#if (RECORDERDEBUG==1)

			cout << dlerror() << endl; 

			cout << "Defining functions from default path." << endl;

	#endif	       

			define_functions(handle);

		

		}

	} else {

	#if (RECORDERDEBUG==1)

			cout << "Defining functions from smart path." << endl;

	#endif	       



		define_functions(handle);

	}

}



PortAudioWrapper::~PortAudioWrapper()

{

	if (libhandle!=NULL) 

	{

		dlclose(libhandle);

	}

}



void PortAudioWrapper::define_functions(LIBHANDLE_T* handle)

{

	if (handle==NULL) return;

	libhandle=handle;

	libloaded=false;

	// Given a handle to a dynamic library, define functions that are in it.



	#if (RECORDERDEBUG==1)

	cout << "Define Pa_Initialize..." << endl;

	#endif

	Pa_Initialize=(PaError (*)(void))dlsym(handle,"Pa_Initialize");



	if (Pa_Initialize==NULL) { fl_message("Error loading Pa_Initialize");	return; }



	#if (RECORDERDEBUG==1)

	cout << "Define Pa_Terminate..." << endl;

	#endif



	Pa_Terminate=(PaError (*)(void))dlsym(handle,"Pa_Terminate");

	if (Pa_Terminate==NULL) { fl_message("Error loading Pa_Terminate");	return; }



	#if (RECORDERDEBUG==1)

	cout << "Define Pa_StartStream..." << endl;

	#endif



	Pa_StartStream=(PaError (*)(PaStream*))dlsym(handle,"Pa_StartStream");

	if (Pa_StartStream==NULL) { fl_message("Error loading Pa_StartStream");	return; }



	#if (RECORDERDEBUG==1)

	cout << "Define Pa_StopStream..." << endl;

	#endif



	Pa_StopStream=(PaError (*)(PaStream*))dlsym(handle,"Pa_StopStream");

	if (Pa_StopStream==NULL) { fl_message("Error loading Pa_StopStream"); return; }



	#if (RECORDERDEBUG==1)

	cout << "Define Pa_AbortStream..." << endl;

	#endif



	Pa_AbortStream=(PaError (*)(PaStream*))dlsym(handle,"Pa_AbortStream");

	if (Pa_AbortStream==NULL) { fl_message("Error loading Pa_AbortStream"); return; }



	#if (RECORDERDEBUG==1)

	cout << "Define Pa_CloseStream..." << endl;

	#endif



	Pa_CloseStream=(PaError (*)(PaStream*))dlsym(handle,"Pa_CloseStream");

	if (Pa_CloseStream==NULL) { fl_message("Error loading Pa_CloseStream"); return; }



	#if (RECORDERDEBUG==1)

	cout << "Define Pa_GetStreamTime..." << endl;

	#endif



	Pa_GetStreamTime=(PaTime (*)(PaStream*))dlsym(handle,"Pa_GetStreamTime");	

	if (Pa_GetStreamTime==NULL) { fl_message("Error loading Pa_GetStreamTime"); return; }



	#if (RECORDERDEBUG==1)

	cout << "Define Pa_StreamActive..." << endl;

	#endif



	Pa_StreamActive=(PaError (*)(PaStream*))dlsym(handle,"Pa_IsStreamActive");	

	if (Pa_StreamActive==NULL) { 

		Pa_StreamActive=(PaError (*)(PaStream*))dlsym(handle,"Pa_StreamActive");	

	}

	if (Pa_StreamActive==NULL) { 

		fl_message("Error loading Pa_StreamActive"); return; 

	}



	#if (RECORDERDEBUG==1)

	cout << "Define Pa_OpenStream..." << endl;

	#endif

	Pa_OpenStream=(PaError (*)(PaStream**,

			const PaStreamParameters*,

			const PaStreamParameters*,

			double,

			unsigned long,

			PaStreamFlags,

			PaStreamCallback*,

			void*))dlsym(handle,"Pa_OpenStream");

		

	if (Pa_OpenStream==NULL) { fl_message("Error loading Pa_OpenStream"); return; }

	

	#if (RECORDERDEBUG==1)	

	cout << "Define Pa_GetDeviceCount..." << endl;		

	#endif



	Pa_GetDeviceCount=(int (*)(void))dlsym(handle,"Pa_GetDeviceCount");

	if (Pa_GetDeviceCount==NULL) { fl_message("Error loading Pa_GetDeviceCount"); return; }



	#if (RECORDERDEBUG==1)

	cout << "Define Pa_GetDeviceInfo..." << endl;		

	#endif



	Pa_GetDeviceInfo=(const PaDeviceInfo* (*)(int))dlsym(handle,"Pa_GetDeviceInfo");

	if (Pa_GetDeviceInfo==NULL) { fl_message("Error loading Pa_GetDeviceInfo"); return; }



	#if (RECORDERDEBUG==1)

	cout << "Define Pa_GetDefaultInputDevice..." << endl;		

	#endif



	Pa_GetDefaultInputDevice=(PaDeviceIndex (*)(void))dlsym(handle,"Pa_GetDefaultInputDevice");

	if (Pa_GetDefaultInputDevice==NULL) { fl_message("Error loading Pa_GetDefaultInputDevice"); return; }



	#if (RECORDERDEBUG==1)

	cout << "Define Pa_GetDefaultOutputDevice..." << endl;		

	#endif



	Pa_GetDefaultOutputDevice=(PaDeviceIndex (*)(void))dlsym(handle,"Pa_GetDefaultOutputDevice");

	if (Pa_GetDefaultOutputDevice==NULL) { fl_message("Error loading Pa_GetDefaultOutputDevice"); return; }



	#if (RECORDERDEBUG==1)

	cout << "Define Pa_GetVersionText..." << endl;		

	#endif



	Pa_GetVersionText=(const char* (*)(void))dlsym(handle,"Pa_GetVersionText");



	#if (RECORDERDEBUG==1)

	cout << "Define Pa_GetErrorText..." << endl;		

	#endif



	Pa_GetErrorText=(const char* (*)(PaError))dlsym(handle,"Pa_GetErrorText");

	#if (RECORDERDEBUG==1)

	cout << "Define Pa_GetLastHostErrorInfo..." << endl;

	#endif

	Pa_GetLastHostErrorInfo=(const PaHostErrorInfo* (*)(void))dlsym(handle,"Pa_GetLastHostErrorInfo");

	



	#if (RECORDERDEBUG==1)

	PaError initerror=(*(this->Pa_Initialize))();

	cout << "initerror=" <<initerror << endl;

	cout << "Portaudio version=" <<  (*(this->Pa_GetVersionText))() << endl;

	#endif



	#if (RECORDERDEBUG==1)

	int devcount=(*(this->Pa_GetDeviceCount))();

	cout << "Portaudio Device count=" << devcount << endl;

	cout << "Default Portaudio Input Device =" <<  (*(this->Pa_GetDefaultInputDevice))() << endl;

	cout << "Default Portaudio Output Device =" <<  (*(this->Pa_GetDefaultOutputDevice))() << endl;

	#endif



	libloaded=true;

}



SoundFileWrapper::SoundFileWrapper(char* absprogpath)

{

	sf_open=NULL;

	sf_close=NULL;

	libloaded=false;



	char result[2048];

//	TODO: Was there a reason why this said PORTAUDIO?

//	SmartFind(LIBFILE_PORTAUDIO,absprogpath,&result[0]);

	SmartFind(LIBFILE_SNDFILE,absprogpath,&result[0]);



	string abslib="";

	abslib+=result;

	abslib+=LIBFILE_SNDFILE;

	LIBHANDLE_T* handle=dlopen(abslib.c_str(),RTLD_NOW);

	if (handle==NULL) {

		fl_message("%s",dlerror()); 

	}

	if (handle==NULL) {

		handle=dlopen(LIBFILE_SNDFILE,RTLD_NOW);

		if (handle==NULL) {

			fl_message("%s",dlerror()); 

		} else {

			define_functions(handle);

		}

	} else {

		define_functions(handle);

	}

}



SoundFileWrapper::~SoundFileWrapper()

{

	if (libhandle!=NULL) 

	{

		dlclose(libhandle);

	}



}



void SoundFileWrapper::define_functions(LIBHANDLE_T* handle)

{

	if (handle==NULL) return;

	libhandle=handle;

	// Given a handle to a dynamic library, define functions that are in it.

	sf_open=(SNDFILE*(*)(const char*,int,SF_INFO*))dlsym(handle,"sf_open");

	if (sf_open==NULL) {

		fl_message("Unable to load libsndfile, file transfers won't work.");

	}

	sf_close=(int(*)(SNDFILE*))dlsym(handle,"sf_close");

	sf_read_int=(sf_count_t(*)(SNDFILE*,int*,sf_count_t))dlsym(handle,"sf_read_int");

	sf_write_raw=(sf_count_t(*)(SNDFILE*,const void*,sf_count_t))dlsym(handle,"sf_write_raw");

	sf_write_float=(sf_count_t(*)(SNDFILE*,const void*,sf_count_t))dlsym(handle,"sf_write_float");

	if (sf_open!=NULL) {

		libloaded=true;

	}

}



JackWrapper::JackWrapper(char* absprogpath)

{

	libloaded=false;

	char result[2048];

//	TODO: Was there a reason why this said PORTAUDIO?

//	SmartFind(LIBFILE_PORTAUDIO,absprogpath,&result[0]);

	SmartFind(LIBFILE_JACK,absprogpath,&result[0]);



	string abslib="";

	abslib+=result;

	abslib+=LIBFILE_JACK;

	LIBHANDLE_T* handle=dlopen(abslib.c_str(),RTLD_NOW);

	if (handle==NULL) {

		handle=dlopen(LIBFILE_JACK,RTLD_NOW);

		if (handle==NULL) {

	//	        cout << dlerror() << endl; 

		} else {

			define_functions(handle);

		}

	} else {

		define_functions(handle);

	}

}



JackWrapper::~JackWrapper()

{

	if (libhandle!=NULL) 

	{

		dlclose(libhandle);

	}



}



void JackWrapper::define_functions(LIBHANDLE_T* handle)

{

	if (handle==NULL) return;

	libhandle=handle;

	// Given a handle to a dynamic library, define functions that are in it.

	jack_client_new=(jack_client_t*(*)(const char*))dlsym(handle,"jack_client_new");

	jack_set_process_callback=(int(*)(jack_client_t*,JackProcessCallback,void*))dlsym(handle,"jack_set_process_callback");

	jack_on_shutdown=(void (*)(jack_client_t*,void (*function)(void *), void *))dlsym(handle,"jack_on_shutdown");

	jack_get_sample_rate=(jack_nframes_t (*)(jack_client_t*))dlsym(handle,"jack_get_sample_rate");

	jack_port_get_buffer=(void* (*)(jack_port_t*,jack_nframes_t))dlsym(handle,"jack_port_get_buffer");

	jack_transport_query=(jack_transport_state_t (*)(const jack_client_t*,jack_position_t*))dlsym(handle,"jack_transport_query");

	jack_port_register=(jack_port_t* (*)(jack_client_t*,const char*,const char*,unsigned long,unsigned long))dlsym(handle,"jack_port_register");

	jack_activate=(int (*)(jack_client_t*))dlsym(handle,"jack_activate");

	jack_get_current_transport_frame=(jack_nframes_t (*)(const jack_client_t*))dlsym(handle,"jack_get_current_transport_frame");

	jack_transport_locate=(int (*)(jack_client_t*,jack_nframes_t))dlsym(handle,"jack_transport_locate");

	jack_transport_start=(void (*)(jack_client_t*))dlsym(handle,"jack_transport_start");

	jack_transport_stop=(void (*)(jack_client_t*))dlsym(handle,"jack_transport_stop");

	libloaded=true;

}