Version 4.3.1

src/include/asio.cpp

@@ -0,0 +1,257 @@
+/*
+	Steinberg Audio Stream I/O API
+	(c) 1996, Steinberg Soft- und Hardware GmbH
+
+	asio.cpp
+	
+	asio functions entries which translate the
+	asio interface to the asiodrvr class methods
+*/ 
+	
+#include <string.h>
+#include "asiosys.h"		// platform definition
+#include "asio.h"
+
+#if MAC
+#include "asiodrvr.h"
+
+#pragma export on
+
+AsioDriver *theAsioDriver = 0;
+
+extern "C"
+{
+
+long main()
+{
+	return 'ASIO';
+}
+
+#elif WINDOWS
+
+#include "windows.h"
+#include "iasiodrv.h"
+#include "asiodrivers.h"
+
+IASIO *theAsioDriver = 0;
+extern AsioDrivers *asioDrivers;
+
+#elif SGI || SUN || BEOS || LINUX
+#include "asiodrvr.h"
+static AsioDriver *theAsioDriver = 0;
+#endif
+
+//-----------------------------------------------------------------------------------------------------
+ASIOError ASIOInit(ASIODriverInfo *info)
+{
+#if MAC || SGI || SUN || BEOS || LINUX
+	if(theAsioDriver)
+	{
+		delete theAsioDriver;
+		theAsioDriver = 0;
+	}		
+	info->driverVersion = 0;
+	strcpy(info->name, "No ASIO Driver");
+	theAsioDriver = getDriver();
+	if(!theAsioDriver)
+	{
+		strcpy(info->errorMessage, "Not enough memory for the ASIO driver!"); 
+		return ASE_NotPresent;
+	}
+	if(!theAsioDriver->init(info->sysRef))
+	{
+		theAsioDriver->getErrorMessage(info->errorMessage);
+		delete theAsioDriver;
+		theAsioDriver = 0;
+		return ASE_NotPresent;
+	}
+	strcpy(info->errorMessage, "No ASIO Driver Error");
+	theAsioDriver->getDriverName(info->name);
+	info->driverVersion = theAsioDriver->getDriverVersion();
+	return ASE_OK;
+
+#else
+
+	info->driverVersion = 0;
+	strcpy(info->name, "No ASIO Driver");
+	if(theAsioDriver)	// must be loaded!
+	{
+		if(!theAsioDriver->init(info->sysRef))
+		{
+			theAsioDriver->getErrorMessage(info->errorMessage);
+			theAsioDriver = 0;
+			return ASE_NotPresent;
+		}		
+
+		strcpy(info->errorMessage, "No ASIO Driver Error");
+		theAsioDriver->getDriverName(info->name);
+		info->driverVersion = theAsioDriver->getDriverVersion();
+		return ASE_OK;
+	}
+	return ASE_NotPresent;
+
+#endif	// !MAC
+}
+
+ASIOError ASIOExit(void)
+{
+	if(theAsioDriver)
+	{
+#if WINDOWS
+		asioDrivers->removeCurrentDriver();
+#else
+		delete theAsioDriver;
+#endif
+	}		
+	theAsioDriver = 0;
+	return ASE_OK;
+}
+
+ASIOError ASIOStart(void)
+{
+	if(!theAsioDriver)
+		return ASE_NotPresent;
+	return theAsioDriver->start();
+}
+
+ASIOError ASIOStop(void)
+{
+	if(!theAsioDriver)
+		return ASE_NotPresent;
+	return theAsioDriver->stop();
+}
+
+ASIOError ASIOGetChannels(long *numInputChannels, long *numOutputChannels)
+{
+	if(!theAsioDriver)
+	{
+		*numInputChannels = *numOutputChannels = 0;
+		return ASE_NotPresent;
+	}
+	return theAsioDriver->getChannels(numInputChannels, numOutputChannels);
+}
+
+ASIOError ASIOGetLatencies(long *inputLatency, long *outputLatency)
+{
+	if(!theAsioDriver)
+	{
+		*inputLatency = *outputLatency = 0;
+		return ASE_NotPresent;
+	}
+	return theAsioDriver->getLatencies(inputLatency, outputLatency);
+}
+
+ASIOError ASIOGetBufferSize(long *minSize, long *maxSize, long *preferredSize, long *granularity)
+{
+	if(!theAsioDriver)
+	{
+		*minSize = *maxSize = *preferredSize = *granularity = 0;
+		return ASE_NotPresent;
+	}
+	return theAsioDriver->getBufferSize(minSize, maxSize, preferredSize, granularity);
+}
+
+ASIOError ASIOCanSampleRate(ASIOSampleRate sampleRate)
+{
+	if(!theAsioDriver)
+		return ASE_NotPresent;
+	return theAsioDriver->canSampleRate(sampleRate);
+}
+
+ASIOError ASIOGetSampleRate(ASIOSampleRate *currentRate)
+{
+	if(!theAsioDriver)
+		return ASE_NotPresent;
+	return theAsioDriver->getSampleRate(currentRate);
+}
+
+ASIOError ASIOSetSampleRate(ASIOSampleRate sampleRate)
+{
+	if(!theAsioDriver)
+		return ASE_NotPresent;
+	return theAsioDriver->setSampleRate(sampleRate);
+}
+
+ASIOError ASIOGetClockSources(ASIOClockSource *clocks, long *numSources)
+{
+	if(!theAsioDriver)
+	{
+		*numSources = 0;
+		return ASE_NotPresent;
+	}
+	return theAsioDriver->getClockSources(clocks, numSources);
+}
+
+ASIOError ASIOSetClockSource(long reference)
+{
+	if(!theAsioDriver)
+		return ASE_NotPresent;
+	return theAsioDriver->setClockSource(reference);
+}
+
+ASIOError ASIOGetSamplePosition(ASIOSamples *sPos, ASIOTimeStamp *tStamp)
+{
+	if(!theAsioDriver)
+		return ASE_NotPresent;
+	return theAsioDriver->getSamplePosition(sPos, tStamp);
+}
+
+ASIOError ASIOGetChannelInfo(ASIOChannelInfo *info)
+{
+	if(!theAsioDriver)
+	{
+		info->channelGroup = -1;
+		info->type = ASIOSTInt16MSB;
+		strcpy(info->name, "None");
+		return ASE_NotPresent;
+	}
+	return theAsioDriver->getChannelInfo(info);
+}
+
+ASIOError ASIOCreateBuffers(ASIOBufferInfo *bufferInfos, long numChannels,
+	long bufferSize, ASIOCallbacks *callbacks)
+{
+	if(!theAsioDriver)
+	{
+		ASIOBufferInfo *info = bufferInfos;
+		for(long i = 0; i < numChannels; i++, info++)
+			info->buffers[0] = info->buffers[1] = 0;
+		return ASE_NotPresent;
+	}
+	return theAsioDriver->createBuffers(bufferInfos, numChannels, bufferSize, callbacks);
+}
+
+ASIOError ASIODisposeBuffers(void)
+{
+	if(!theAsioDriver)
+		return ASE_NotPresent;
+	return theAsioDriver->disposeBuffers();
+}
+
+ASIOError ASIOControlPanel(void)
+{
+	if(!theAsioDriver)
+		return ASE_NotPresent;
+	return theAsioDriver->controlPanel();
+}
+
+ASIOError ASIOFuture(long selector, void *opt)
+{
+	if(!theAsioDriver)
+		return ASE_NotPresent;
+	return theAsioDriver->future(selector, opt);
+}
+
+ASIOError ASIOOutputReady(void)
+{
+	if(!theAsioDriver)
+		return ASE_NotPresent;
+	return theAsioDriver->outputReady();
+}
+
+#if MAC
+}	// extern "C"
+#pragma export off
+#endif
+
+

src/include/asiodrivers.cpp

@@ -0,0 +1,186 @@
+#include <string.h>
+#include "asiodrivers.h"
+
+AsioDrivers* asioDrivers = 0;
+
+bool loadAsioDriver(char *name);
+
+bool loadAsioDriver(char *name)
+{
+	if(!asioDrivers)
+		asioDrivers = new AsioDrivers();
+	if(asioDrivers)
+		return asioDrivers->loadDriver(name);
+	return false;
+}
+
+//------------------------------------------------------------------------------------
+
+#if MAC
+
+bool resolveASIO(unsigned long aconnID);
+
+AsioDrivers::AsioDrivers() : CodeFragments("ASIO Drivers", 'AsDr', 'Asio')
+{
+	connID = -1;
+	curIndex = -1;
+}
+
+AsioDrivers::~AsioDrivers()
+{
+	removeCurrentDriver();
+}
+
+bool AsioDrivers::getCurrentDriverName(char *name)
+{
+	if(curIndex >= 0)
+		return getName(curIndex, name);
+	return false;
+}
+
+long AsioDrivers::getDriverNames(char **names, long maxDrivers)
+{
+	for(long i = 0; i < getNumFragments() && i < maxDrivers; i++)
+		getName(i, names[i]);
+	return getNumFragments() < maxDrivers ? getNumFragments() : maxDrivers;
+}
+
+bool AsioDrivers::loadDriver(char *name)
+{
+	char dname[64];
+	unsigned long newID;
+
+	for(long i = 0; i < getNumFragments(); i++)
+	{
+		if(getName(i, dname) && !strcmp(name, dname))
+		{
+			if(newInstance(i, &newID))
+			{
+				if(resolveASIO(newID))
+				{
+					if(connID != -1)
+						removeInstance(curIndex, connID);
+					curIndex = i;
+					connID = newID;
+					return true;
+				}
+			}
+			break;
+		}
+	}
+	return false;
+}
+
+void AsioDrivers::removeCurrentDriver()
+{
+	if(connID != -1)
+		removeInstance(curIndex, connID);
+	connID = -1;
+	curIndex = -1;
+}
+
+//------------------------------------------------------------------------------------
+
+#elif WINDOWS
+
+#include "iasiodrv.h"
+
+extern IASIO* theAsioDriver;
+
+AsioDrivers::AsioDrivers() : AsioDriverList()
+{
+	curIndex = -1;
+}
+
+AsioDrivers::~AsioDrivers()
+{
+}
+
+bool AsioDrivers::getCurrentDriverName(char *name)
+{
+	if(curIndex >= 0)
+		return asioGetDriverName(curIndex, name, 32) == 0 ? true : false;
+	name[0] = 0;
+	return false;
+}
+
+long AsioDrivers::getDriverNames(char **names, long maxDrivers)
+{
+	for(long i = 0; i < asioGetNumDev() && i < maxDrivers; i++)
+		asioGetDriverName(i, names[i], 32);
+	return asioGetNumDev() < maxDrivers ? asioGetNumDev() : maxDrivers;
+}
+
+bool AsioDrivers::loadDriver(char *name)
+{
+	char dname[64];
+	char curName[64];
+
+	for(long i = 0; i < asioGetNumDev(); i++)
+	{
+		if(!asioGetDriverName(i, dname, 32) && !strcmp(name, dname))
+		{
+			curName[0] = 0;
+			getCurrentDriverName(curName);	// in case we fail...
+			removeCurrentDriver();
+
+			if(!asioOpenDriver(i, (void **)&theAsioDriver))
+			{
+				curIndex = i;
+				return true;
+			}
+			else
+			{
+				theAsioDriver = 0;
+				if(curName[0] && strcmp(dname, curName))
+					loadDriver(curName);	// try restore
+			}
+			break;
+		}
+	}
+	return false;
+}
+
+void AsioDrivers::removeCurrentDriver()
+{
+	if(curIndex != -1)
+		asioCloseDriver(curIndex);
+	curIndex = -1;
+}
+
+#elif SGI || BEOS
+
+#include "asiolist.h"
+
+AsioDrivers::AsioDrivers() 
+	: AsioDriverList()
+{
+	curIndex = -1;
+}
+
+AsioDrivers::~AsioDrivers()
+{
+}
+
+bool AsioDrivers::getCurrentDriverName(char *name)
+{
+	return false;
+}
+
+long AsioDrivers::getDriverNames(char **names, long maxDrivers)
+{
+	return 0;
+}
+
+bool AsioDrivers::loadDriver(char *name)
+{
+	return false;
+}
+
+void AsioDrivers::removeCurrentDriver()
+{
+}
+
+#else
+#error implement me
+#endif

src/include/asiodrivers.h

@@ -0,0 +1,41 @@
+#ifndef __AsioDrivers__
+#define __AsioDrivers__
+
+#include "ginclude.h"
+
+#if MAC
+#include "CodeFragments.hpp"
+
+class AsioDrivers : public CodeFragments
+
+#elif WINDOWS
+#include <windows.h>
+#include "asiolist.h"
+
+class AsioDrivers : public AsioDriverList
+
+#elif SGI || BEOS
+#include "asiolist.h"
+
+class AsioDrivers : public AsioDriverList
+
+#else
+#error implement me
+#endif
+
+{
+public:
+	AsioDrivers();
+	~AsioDrivers();
+	
+	bool getCurrentDriverName(char *name);
+	long getDriverNames(char **names, long maxDrivers);
+	bool loadDriver(char *name);
+	void removeCurrentDriver();
+	long getCurrentDriverIndex() {return curIndex;}
+protected:
+	unsigned long connID;
+	long curIndex;
+};
+
+#endif

src/include/asiodrvr.h

@@ -0,0 +1,76 @@
+/*
+	Steinberg Audio Stream I/O API
+	(c) 1996, Steinberg Soft- und Hardware GmbH
+	charlie (May 1996)
+
+	asiodrvr.h
+	c++ superclass to implement asio functionality. from this,
+	you can derive whatever required
+*/
+
+#ifndef _asiodrvr_
+#define _asiodrvr_
+
+// cpu and os system we are running on
+#include "asiosys.h"
+// basic "C" interface
+#include "asio.h"
+
+class AsioDriver;
+extern AsioDriver *getDriver();		// for generic constructor 
+
+#if WINDOWS
+#include <windows.h>
+#include "combase.h"
+#include "iasiodrv.h"
+class AsioDriver : public IASIO ,public CUnknown
+{
+public:
+	AsioDriver(LPUNKNOWN pUnk, HRESULT *phr);
+
+	DECLARE_IUNKNOWN
+	// Factory method
+	static CUnknown *CreateInstance(LPUNKNOWN pUnk, HRESULT *phr);
+	// IUnknown
+	virtual HRESULT STDMETHODCALLTYPE NonDelegatingQueryInterface(REFIID riid,void **ppvObject);
+
+#else
+
+class AsioDriver
+{
+public:
+	AsioDriver();
+#endif
+	virtual ~AsioDriver();
+
+	virtual ASIOBool init(void* sysRef);
+	virtual void getDriverName(char *name);	// max 32 bytes incl. terminating zero
+	virtual long getDriverVersion();
+	virtual void getErrorMessage(char *string);	// max 124 bytes incl.
+
+	virtual ASIOError start();
+	virtual ASIOError stop();
+
+	virtual ASIOError getChannels(long *numInputChannels, long *numOutputChannels);
+	virtual ASIOError getLatencies(long *inputLatency, long *outputLatency);
+	virtual ASIOError getBufferSize(long *minSize, long *maxSize,
+		long *preferredSize, long *granularity);
+
+	virtual ASIOError canSampleRate(ASIOSampleRate sampleRate);
+	virtual ASIOError getSampleRate(ASIOSampleRate *sampleRate);
+	virtual ASIOError setSampleRate(ASIOSampleRate sampleRate);
+	virtual ASIOError getClockSources(ASIOClockSource *clocks, long *numSources);
+	virtual ASIOError setClockSource(long reference);
+
+	virtual ASIOError getSamplePosition(ASIOSamples *sPos, ASIOTimeStamp *tStamp);
+	virtual ASIOError getChannelInfo(ASIOChannelInfo *info);
+
+	virtual ASIOError createBuffers(ASIOBufferInfo *bufferInfos, long numChannels,
+		long bufferSize, ASIOCallbacks *callbacks);
+	virtual ASIOError disposeBuffers();
+
+	virtual ASIOError controlPanel();
+	virtual ASIOError future(long selector, void *opt);
+	virtual ASIOError outputReady();
+};
+#endif

src/include/asiolist.cpp

@@ -0,0 +1,268 @@
+#include <windows.h>
+#include "iasiodrv.h"
+#include "asiolist.h"
+
+#define ASIODRV_DESC		"description"
+#define INPROC_SERVER		"InprocServer32"
+#define ASIO_PATH			"software\\asio"
+#define COM_CLSID			"clsid"
+
+// ******************************************************************
+// Local Functions 
+// ******************************************************************
+static LONG findDrvPath (char *clsidstr,char *dllpath,int dllpathsize)
+{
+	HKEY			hkEnum,hksub,hkpath;
+	char			databuf[512];
+	LONG 			cr,rc = -1;
+	DWORD			datatype,datasize;
+	DWORD			index;
+	OFSTRUCT		ofs;
+	HFILE			hfile;
+	BOOL			found = FALSE;
+
+	CharLowerBuff(clsidstr,strlen(clsidstr));
+	if ((cr = RegOpenKey(HKEY_CLASSES_ROOT,COM_CLSID,&hkEnum)) == ERROR_SUCCESS) {
+
+		index = 0;
+		while (cr == ERROR_SUCCESS && !found) {
+			cr = RegEnumKey(hkEnum,index++,(LPTSTR)databuf,512);
+			if (cr == ERROR_SUCCESS) {
+				CharLowerBuff(databuf,strlen(databuf));
+				if (!(strcmp(databuf,clsidstr))) {
+					if ((cr = RegOpenKeyEx(hkEnum,(LPCTSTR)databuf,0,KEY_READ,&hksub)) == ERROR_SUCCESS) {
+						if ((cr = RegOpenKeyEx(hksub,(LPCTSTR)INPROC_SERVER,0,KEY_READ,&hkpath)) == ERROR_SUCCESS) {
+							datatype = REG_SZ; datasize = (DWORD)dllpathsize;
+							cr = RegQueryValueEx(hkpath,0,0,&datatype,(LPBYTE)dllpath,&datasize);
+							if (cr == ERROR_SUCCESS) {
+								memset(&ofs,0,sizeof(OFSTRUCT));
+								ofs.cBytes = sizeof(OFSTRUCT); 
+								hfile = OpenFile(dllpath,&ofs,OF_EXIST);
+								if (hfile) rc = 0; 
+							}
+							RegCloseKey(hkpath);
+						}
+						RegCloseKey(hksub);
+					}
+					found = TRUE;	// break out 
+				}
+			}
+		}				
+		RegCloseKey(hkEnum);
+	}
+	return rc;
+}
+
+
+static LPASIODRVSTRUCT newDrvStruct (HKEY hkey,char *keyname,int drvID,LPASIODRVSTRUCT lpdrv)
+{
+	HKEY	hksub;
+	char	databuf[256];
+	char	dllpath[MAXPATHLEN];
+	WORD	wData[100];
+	CLSID	clsid;
+	DWORD	datatype,datasize;
+	LONG	cr,rc;
+
+	if (!lpdrv) {
+		if ((cr = RegOpenKeyEx(hkey,(LPCTSTR)keyname,0,KEY_READ,&hksub)) == ERROR_SUCCESS) {
+
+			datatype = REG_SZ; datasize = 256;
+			cr = RegQueryValueEx(hksub,COM_CLSID,0,&datatype,(LPBYTE)databuf,&datasize);
+			if (cr == ERROR_SUCCESS) {
+				rc = findDrvPath (databuf,dllpath,MAXPATHLEN);
+				if (rc == 0) {
+					lpdrv = new ASIODRVSTRUCT[1];
+					if (lpdrv) {
+						memset(lpdrv,0,sizeof(ASIODRVSTRUCT));
+						lpdrv->drvID = drvID;
+						MultiByteToWideChar(CP_ACP,0,(LPCSTR)databuf,-1,(LPWSTR)wData,100);
+						if ((cr = CLSIDFromString((LPOLESTR)wData,(LPCLSID)&clsid)) == S_OK) {
+							memcpy(&lpdrv->clsid,&clsid,sizeof(CLSID));
+						}
+
+						datatype = REG_SZ; datasize = 256;
+						cr = RegQueryValueEx(hksub,ASIODRV_DESC,0,&datatype,(LPBYTE)databuf,&datasize);
+						if (cr == ERROR_SUCCESS) {
+							strcpy(lpdrv->drvname,databuf);
+						}
+						else strcpy(lpdrv->drvname,keyname);
+					}
+				}
+			}
+			RegCloseKey(hksub);
+		}
+	}	
+	else lpdrv->next = newDrvStruct(hkey,keyname,drvID+1,lpdrv->next);
+
+	return lpdrv;
+}
+
+static void deleteDrvStruct (LPASIODRVSTRUCT lpdrv)
+{
+	IASIO	*iasio;
+
+	if (lpdrv != 0) {
+		deleteDrvStruct(lpdrv->next);
+		if (lpdrv->asiodrv) {
+			iasio = (IASIO *)lpdrv->asiodrv;
+			iasio->Release();
+		}
+		delete lpdrv;
+	}
+}
+
+
+static LPASIODRVSTRUCT getDrvStruct (int drvID,LPASIODRVSTRUCT lpdrv)
+{
+	while (lpdrv) {
+		if (lpdrv->drvID == drvID) return lpdrv;
+		lpdrv = lpdrv->next;
+	}
+	return 0;
+}
+// ******************************************************************
+
+
+// ******************************************************************
+//	AsioDriverList
+// ******************************************************************
+AsioDriverList::AsioDriverList ()
+{
+	HKEY			hkEnum = 0;
+	char			keyname[MAXDRVNAMELEN];
+	LPASIODRVSTRUCT	pdl;
+	LONG 			cr;
+	DWORD			index = 0;
+	BOOL			fin = FALSE;
+
+	numdrv		= 0;
+	lpdrvlist	= 0;
+
+	cr = RegOpenKey(HKEY_LOCAL_MACHINE,ASIO_PATH,&hkEnum);
+	while (cr == ERROR_SUCCESS) {
+		if ((cr = RegEnumKey(hkEnum,index++,(LPTSTR)keyname,MAXDRVNAMELEN))== ERROR_SUCCESS) {
+			lpdrvlist = newDrvStruct (hkEnum,keyname,0,lpdrvlist);
+		}
+		else fin = TRUE;
+	}
+	if (hkEnum) RegCloseKey(hkEnum);
+
+	pdl = lpdrvlist;
+	while (pdl) {
+		numdrv++;
+		pdl = pdl->next;
+	}
+
+	if (numdrv) CoInitialize(0);	// initialize COM
+}
+
+AsioDriverList::~AsioDriverList ()
+{
+	if (numdrv) {
+		deleteDrvStruct(lpdrvlist);
+		CoUninitialize();
+	}
+}
+
+
+LONG AsioDriverList::asioGetNumDev (VOID)
+{
+	return (LONG)numdrv;
+}
+
+
+LONG AsioDriverList::asioOpenDriver (int drvID,LPVOID *asiodrv)
+{
+	LPASIODRVSTRUCT	lpdrv = 0;
+	long			rc;
+
+	if (!asiodrv) return DRVERR_INVALID_PARAM;
+
+	if ((lpdrv = getDrvStruct(drvID,lpdrvlist)) != 0) {
+		if (!lpdrv->asiodrv) {
+			rc = CoCreateInstance(lpdrv->clsid,0,CLSCTX_INPROC_SERVER,lpdrv->clsid,asiodrv);
+			if (rc == S_OK) {
+				lpdrv->asiodrv = *asiodrv;
+				return 0;
+			}
+			// else if (rc == REGDB_E_CLASSNOTREG)
+			//	strcpy (info->messageText, "Driver not registered in the Registration Database!");
+		}
+		else rc = DRVERR_DEVICE_ALREADY_OPEN;
+	}
+	else rc = DRVERR_DEVICE_NOT_FOUND;
+	
+	return rc;
+}
+
+
+LONG AsioDriverList::asioCloseDriver (int drvID)
+{
+	LPASIODRVSTRUCT	lpdrv = 0;
+	IASIO			*iasio;
+
+	if ((lpdrv = getDrvStruct(drvID,lpdrvlist)) != 0) {
+		if (lpdrv->asiodrv) {
+			iasio = (IASIO *)lpdrv->asiodrv;
+			iasio->Release();
+			lpdrv->asiodrv = 0;
+		}
+	}
+
+	return 0;
+}
+
+LONG AsioDriverList::asioGetDriverName (int drvID,char *drvname,int drvnamesize)
+{	
+	LPASIODRVSTRUCT			lpdrv = 0;
+
+	if (!drvname) return DRVERR_INVALID_PARAM;
+
+	if ((lpdrv = getDrvStruct(drvID,lpdrvlist)) != 0) {
+		if (strlen(lpdrv->drvname) < (unsigned int)drvnamesize) {
+			strcpy(drvname,lpdrv->drvname);
+		}
+		else {
+			memcpy(drvname,lpdrv->drvname,drvnamesize-4);
+			drvname[drvnamesize-4] = '.';
+			drvname[drvnamesize-3] = '.';
+			drvname[drvnamesize-2] = '.';
+			drvname[drvnamesize-1] = 0;
+		}
+		return 0;
+	}
+	return DRVERR_DEVICE_NOT_FOUND;
+}
+
+LONG AsioDriverList::asioGetDriverPath (int drvID,char *dllpath,int dllpathsize)
+{
+	LPASIODRVSTRUCT			lpdrv = 0;
+
+	if (!dllpath) return DRVERR_INVALID_PARAM;
+
+	if ((lpdrv = getDrvStruct(drvID,lpdrvlist)) != 0) {
+		if (strlen(lpdrv->dllpath) < (unsigned int)dllpathsize) {
+			strcpy(dllpath,lpdrv->dllpath);
+			return 0;
+		}
+		dllpath[0] = 0;
+		return DRVERR_INVALID_PARAM;
+	}
+	return DRVERR_DEVICE_NOT_FOUND;
+}
+
+LONG AsioDriverList::asioGetDriverCLSID (int drvID,CLSID *clsid)
+{
+	LPASIODRVSTRUCT			lpdrv = 0;
+
+	if (!clsid) return DRVERR_INVALID_PARAM;
+
+	if ((lpdrv = getDrvStruct(drvID,lpdrvlist)) != 0) {
+		memcpy(clsid,&lpdrv->clsid,sizeof(CLSID));
+		return 0;
+	}
+	return DRVERR_DEVICE_NOT_FOUND;
+}
+
+

src/include/asiolist.h

@@ -0,0 +1,46 @@
+#ifndef __asiolist__
+#define __asiolist__
+
+#define DRVERR			-5000
+#define DRVERR_INVALID_PARAM		DRVERR-1
+#define DRVERR_DEVICE_ALREADY_OPEN	DRVERR-2
+#define DRVERR_DEVICE_NOT_FOUND		DRVERR-3
+
+#define MAXPATHLEN			512
+#define MAXDRVNAMELEN		128
+
+struct asiodrvstruct
+{
+	int						drvID;
+	CLSID					clsid;
+	char					dllpath[MAXPATHLEN];
+	char					drvname[MAXDRVNAMELEN];
+	LPVOID					asiodrv;
+	struct asiodrvstruct	*next;
+};
+
+typedef struct asiodrvstruct ASIODRVSTRUCT;
+typedef ASIODRVSTRUCT	*LPASIODRVSTRUCT;
+
+class AsioDriverList {
+public:
+	AsioDriverList();
+	~AsioDriverList();
+	
+	LONG asioOpenDriver (int,VOID **);
+	LONG asioCloseDriver (int);
+
+	// nice to have
+	LONG asioGetNumDev (VOID);
+	LONG asioGetDriverName (int,char *,int);		
+	LONG asioGetDriverPath (int,char *,int);
+	LONG asioGetDriverCLSID (int,CLSID *);
+
+	// or use directly access
+	LPASIODRVSTRUCT	lpdrvlist;
+	int				numdrv;
+};
+
+typedef class AsioDriverList *LPASIODRIVERLIST;
+
+#endif

src/include/asiosys.h

@@ -0,0 +1,82 @@
+#ifndef __asiosys__
+	#define __asiosys__
+
+	#ifdef WIN32
+		#undef MAC 
+		#define PPC 0
+		#define WINDOWS 1
+		#define SGI 0
+		#define SUN 0
+		#define LINUX 0
+		#define BEOS 0
+
+		#define NATIVE_INT64 0
+		#define IEEE754_64FLOAT 1
+	
+	#elif BEOS
+		#define MAC 0
+		#define PPC 0
+		#define WINDOWS 0
+		#define PC 0
+		#define SGI 0
+		#define SUN 0
+		#define LINUX 0
+		
+		#define NATIVE_INT64 0
+		#define IEEE754_64FLOAT 1
+		
+		#ifndef DEBUG
+			#define DEBUG 0
+		 	#if DEBUG
+		 		void DEBUGGERMESSAGE(char *string);
+		 	#else
+		  		#define DEBUGGERMESSAGE(a)
+			#endif
+		#endif
+
+	#elif SGI
+		#define MAC 0
+		#define PPC 0
+		#define WINDOWS 0
+		#define PC 0
+		#define SUN 0
+		#define LINUX 0
+		#define BEOS 0
+		
+		#define NATIVE_INT64 0
+		#define IEEE754_64FLOAT 1
+		
+		#ifndef DEBUG
+			#define DEBUG 0
+		 	#if DEBUG
+		 		void DEBUGGERMESSAGE(char *string);
+		 	#else
+		  		#define DEBUGGERMESSAGE(a)
+			#endif
+		#endif
+
+	#else	// MAC
+
+		#define MAC 1
+		#define PPC 1
+		#define WINDOWS 0
+		#define PC 0
+		#define SGI 0
+		#define SUN 0
+		#define LINUX 0
+		#define BEOS 0
+
+		#define NATIVE_INT64 0
+		#define IEEE754_64FLOAT 1
+
+		#ifndef DEBUG
+			#define DEBUG 0
+			#if DEBUG
+				void DEBUGGERMESSAGE(char *string);
+			#else
+				#define DEBUGGERMESSAGE(a)
+			#endif
+		#endif
+	#endif
+
+#endif

src/include/ginclude.h

@@ -0,0 +1,38 @@
+#ifndef __gInclude__
+#define __gInclude__
+
+#if SGI 
+	#undef BEOS 
+	#undef MAC 
+	#undef WINDOWS
+	//
+	#define ASIO_BIG_ENDIAN 1
+	#define ASIO_CPU_MIPS 1
+#elif defined WIN32
+	#undef BEOS 
+	#undef MAC 
+	#undef SGI
+	#define WINDOWS 1
+	#define ASIO_LITTLE_ENDIAN 1
+	#define ASIO_CPU_X86 1
+#elif BEOS
+	#undef MAC 
+	#undef SGI
+	#undef WINDOWS
+	#define ASIO_LITTLE_ENDIAN 1
+	#define ASIO_CPU_X86 1
+	//
+#else
+	#define MAC 1
+	#undef BEOS 
+	#undef WINDOWS
+	#undef SGI
+	#define ASIO_BIG_ENDIAN 1
+	#define ASIO_CPU_PPC 1
+#endif
+
+// always
+#define NATIVE_INT64 0
+#define IEEE754_64FLOAT 1
+
+#endif	// __gInclude__

src/include/iasiodrv.h

@@ -0,0 +1,37 @@
+#include "asiosys.h"
+#include "asio.h"
+
+/* Forward Declarations */ 
+
+#ifndef __ASIODRIVER_FWD_DEFINED__
+#define __ASIODRIVER_FWD_DEFINED__
+typedef interface IASIO IASIO;
+#endif 	/* __ASIODRIVER_FWD_DEFINED__ */
+
+interface IASIO : public IUnknown
+{
+
+	virtual ASIOBool init(void *sysHandle) = 0;
+	virtual void getDriverName(char *name) = 0;	
+	virtual long getDriverVersion() = 0;
+	virtual void getErrorMessage(char *string) = 0;	
+	virtual ASIOError start() = 0;
+	virtual ASIOError stop() = 0;
+	virtual ASIOError getChannels(long *numInputChannels, long *numOutputChannels) = 0;
+	virtual ASIOError getLatencies(long *inputLatency, long *outputLatency) = 0;
+	virtual ASIOError getBufferSize(long *minSize, long *maxSize,
+		long *preferredSize, long *granularity) = 0;
+	virtual ASIOError canSampleRate(ASIOSampleRate sampleRate) = 0;
+	virtual ASIOError getSampleRate(ASIOSampleRate *sampleRate) = 0;
+	virtual ASIOError setSampleRate(ASIOSampleRate sampleRate) = 0;
+	virtual ASIOError getClockSources(ASIOClockSource *clocks, long *numSources) = 0;
+	virtual ASIOError setClockSource(long reference) = 0;
+	virtual ASIOError getSamplePosition(ASIOSamples *sPos, ASIOTimeStamp *tStamp) = 0;
+	virtual ASIOError getChannelInfo(ASIOChannelInfo *info) = 0;
+	virtual ASIOError createBuffers(ASIOBufferInfo *bufferInfos, long numChannels,
+		long bufferSize, ASIOCallbacks *callbacks) = 0;
+	virtual ASIOError disposeBuffers() = 0;
+	virtual ASIOError controlPanel() = 0;
+	virtual ASIOError future(long selector,void *opt) = 0;
+	virtual ASIOError outputReady() = 0;
+};

src/include/iasiothiscallresolver.cpp

@@ -0,0 +1,563 @@
+/*
+	IASIOThiscallResolver.cpp see the comments in iasiothiscallresolver.h for
+    the top level description - this comment describes the technical details of
+    the implementation.
+
+    The latest version of this file is available from:
+    http://www.audiomulch.com/~rossb/code/calliasio
+
+    please email comments to Ross Bencina <rossb@audiomulch.com>
+
+    BACKGROUND
+
+    The IASIO interface declared in the Steinberg ASIO 2 SDK declares
+    functions with no explicit calling convention. This causes MSVC++ to default
+    to using the thiscall convention, which is a proprietary convention not
+    implemented by some non-microsoft compilers - notably borland BCC,
+    C++Builder, and gcc. MSVC++ is the defacto standard compiler used by
+    Steinberg. As a result of this situation, the ASIO sdk will compile with
+    any compiler, however attempting to execute the compiled code will cause a
+    crash due to different default calling conventions on non-Microsoft
+    compilers.
+
+    IASIOThiscallResolver solves the problem by providing an adapter class that
+    delegates to the IASIO interface using the correct calling convention
+    (thiscall). Due to the lack of support for thiscall in the Borland and GCC
+    compilers, the calls have been implemented in assembly language.
+
+    A number of macros are defined for thiscall function calls with different
+    numbers of parameters, with and without return values - it may be possible
+    to modify the format of these macros to make them work with other inline
+    assemblers.
+
+
+    THISCALL DEFINITION
+
+    A number of definitions of the thiscall calling convention are floating
+    around the internet. The following definition has been validated against
+    output from the MSVC++ compiler:
+
+    For non-vararg functions, thiscall works as follows: the object (this)
+    pointer is passed in ECX. All arguments are passed on the stack in
+    right to left order. The return value is placed in EAX. The callee
+    clears the passed arguments from the stack.
+
+
+    FINDING FUNCTION POINTERS FROM AN IASIO POINTER
+
+    The first field of a COM object is a pointer to its vtble. Thus a pointer
+    to an object implementing the IASIO interface also points to a pointer to
+    that object's vtbl. The vtble is a table of function pointers for all of
+    the virtual functions exposed by the implemented interfaces.
+
+    If we consider a variable declared as a pointer to IASO:
+
+    IASIO *theAsioDriver
+
+    theAsioDriver points to:
+
+    object implementing IASIO
+    {
+        IASIOvtbl *vtbl
+        other data
+    }
+
+    in other words, theAsioDriver points to a pointer to an IASIOvtbl
+
+    vtbl points to a table of function pointers:
+
+    IASIOvtbl ( interface IASIO : public IUnknown )
+    {
+    (IUnknown functions)
+    0   virtual HRESULT STDMETHODCALLTYPE (*QueryInterface)(REFIID riid, void **ppv) = 0;
+    4   virtual ULONG STDMETHODCALLTYPE (*AddRef)() = 0;
+    8   virtual ULONG STDMETHODCALLTYPE (*Release)() = 0;      
+
+    (IASIO functions)
+    12	virtual ASIOBool (*init)(void *sysHandle) = 0;
+    16	virtual void (*getDriverName)(char *name) = 0;
+    20	virtual long (*getDriverVersion)() = 0;
+    24	virtual void (*getErrorMessage)(char *string) = 0;
+    28	virtual ASIOError (*start)() = 0;
+    32	virtual ASIOError (*stop)() = 0;
+    36	virtual ASIOError (*getChannels)(long *numInputChannels, long *numOutputChannels) = 0;
+    40	virtual ASIOError (*getLatencies)(long *inputLatency, long *outputLatency) = 0;
+    44	virtual ASIOError (*getBufferSize)(long *minSize, long *maxSize,
+            long *preferredSize, long *granularity) = 0;
+    48	virtual ASIOError (*canSampleRate)(ASIOSampleRate sampleRate) = 0;
+    52	virtual ASIOError (*getSampleRate)(ASIOSampleRate *sampleRate) = 0;
+    56	virtual ASIOError (*setSampleRate)(ASIOSampleRate sampleRate) = 0;
+    60	virtual ASIOError (*getClockSources)(ASIOClockSource *clocks, long *numSources) = 0;
+    64	virtual ASIOError (*setClockSource)(long reference) = 0;
+    68	virtual ASIOError (*getSamplePosition)(ASIOSamples *sPos, ASIOTimeStamp *tStamp) = 0;
+    72	virtual ASIOError (*getChannelInfo)(ASIOChannelInfo *info) = 0;
+    76	virtual ASIOError (*createBuffers)(ASIOBufferInfo *bufferInfos, long numChannels,
+            long bufferSize, ASIOCallbacks *callbacks) = 0;
+    80	virtual ASIOError (*disposeBuffers)() = 0;
+    84	virtual ASIOError (*controlPanel)() = 0;
+    88	virtual ASIOError (*future)(long selector,void *opt) = 0;
+    92	virtual ASIOError (*outputReady)() = 0;
+    };
+
+    The numbers in the left column show the byte offset of each function ptr
+    from the beginning of the vtbl. These numbers are used in the code below
+    to select different functions.
+
+    In order to find the address of a particular function, theAsioDriver
+    must first be dereferenced to find the value of the vtbl pointer:
+
+    mov     eax, theAsioDriver
+    mov     edx, [theAsioDriver]  // edx now points to vtbl[0]
+
+    Then an offset must be added to the vtbl pointer to select a
+    particular function, for example vtbl+44 points to the slot containing
+    a pointer to the getBufferSize function.
+
+    Finally vtbl+x must be dereferenced to obtain the value of the function
+    pointer stored in that address:
+
+    call    [edx+44]    // call the function pointed to by
+                        // the value in the getBufferSize field of the vtbl
+
+
+    SEE ALSO
+
+    Martin Fay's OpenASIO DLL at http://www.martinfay.com solves the same
+    problem by providing a new COM interface which wraps IASIO with an
+    interface that uses portable calling conventions. OpenASIO must be compiled
+    with MSVC, and requires that you ship the OpenASIO DLL with your
+    application.
+
+    
+    ACKNOWLEDGEMENTS
+
+    Ross Bencina: worked out the thiscall details above, wrote the original
+    Borland asm macros, and a patch for asio.cpp (which is no longer needed).
+    Thanks to Martin Fay for introducing me to the issues discussed here,
+    and to Rene G. Ceballos for assisting with asm dumps from MSVC++.
+
+    Antti Silvast: converted the original calliasio to work with gcc and NASM
+    by implementing the asm code in a separate file.
+
+	Fraser Adams: modified the original calliasio containing the Borland inline
+    asm to add inline asm for gcc i.e. Intel syntax for Borland and AT&T syntax
+    for gcc. This seems a neater approach for gcc than to have a separate .asm
+    file and it means that we only need one version of the thiscall patch.
+
+    Fraser Adams: rewrote the original calliasio patch in the form of the
+    IASIOThiscallResolver class in order to avoid modifications to files from
+    the Steinberg SDK, which may have had potential licence issues.
+
+    Andrew Baldwin: contributed fixes for compatibility problems with more
+    recent versions of the gcc assembler.
+*/
+
+
+// We only need IASIOThiscallResolver at all if we are on Win32. For other
+// platforms we simply bypass the IASIOThiscallResolver definition to allow us
+// to be safely #include'd whatever the platform to keep client code portable
+#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
+
+
+// If microsoft compiler we can call IASIO directly so IASIOThiscallResolver
+// is not used.
+#if !defined(_MSC_VER)
+
+
+#include <new>
+#include <assert.h>
+
+// We have a mechanism in iasiothiscallresolver.h to ensure that asio.h is
+// #include'd before it in client code, we do NOT want to do this test here.
+#define iasiothiscallresolver_sourcefile 1
+#include "iasiothiscallresolver.h"
+#undef iasiothiscallresolver_sourcefile
+
+// iasiothiscallresolver.h redefines ASIOInit for clients, but we don't want
+// this macro defined in this translation unit.
+#undef ASIOInit
+
+
+// theAsioDriver is a global pointer to the current IASIO instance which the
+// ASIO SDK uses to perform all actions on the IASIO interface. We substitute
+// our own forwarding interface into this pointer.
+extern IASIO* theAsioDriver;
+
+
+// The following macros define the inline assembler for BORLAND first then gcc
+
+#if defined(__BCPLUSPLUS__) || defined(__BORLANDC__)          
+
+
+#define CALL_THISCALL_0( resultName, thisPtr, funcOffset )\
+    void *this_ = (thisPtr);                                                \
+    __asm {                                                                 \
+        mov     ecx, this_            ;                                     \
+        mov     eax, [ecx]            ;                                     \
+        call    [eax+funcOffset]      ;                                     \
+        mov     resultName, eax       ;                                     \
+    }
+
+
+#define CALL_VOID_THISCALL_1( thisPtr, funcOffset, param1 )\
+    void *this_ = (thisPtr);                                                \
+    __asm {                                                                 \
+        mov     eax, param1           ;                                     \
+        push    eax                   ;                                     \
+        mov     ecx, this_            ;                                     \
+        mov     eax, [ecx]            ;                                     \
+        call    [eax+funcOffset]      ;                                     \
+    }
+
+
+#define CALL_THISCALL_1( resultName, thisPtr, funcOffset, param1 )\
+    void *this_ = (thisPtr);                                                \
+    __asm {                                                                 \
+        mov     eax, param1           ;                                     \
+        push    eax                   ;                                     \
+        mov     ecx, this_            ;                                     \
+        mov     eax, [ecx]            ;                                     \
+        call    [eax+funcOffset]      ;                                     \
+        mov     resultName, eax       ;                                     \
+    }
+
+
+#define CALL_THISCALL_1_DOUBLE( resultName, thisPtr, funcOffset, param1 )\
+    void *this_ = (thisPtr);                                                \
+    void *doubleParamPtr_ (&param1);                                        \
+    __asm {                                                                 \
+        mov     eax, doubleParamPtr_  ;                                     \
+        push    [eax+4]               ;                                     \
+        push    [eax]                 ;                                     \
+        mov     ecx, this_            ;                                     \
+        mov     eax, [ecx]            ;                                     \
+        call    [eax+funcOffset]      ;                                     \
+        mov     resultName, eax       ;                                     \
+    }
+
+
+#define CALL_THISCALL_2( resultName, thisPtr, funcOffset, param1, param2 )\
+    void *this_ = (thisPtr);                                                \
+    __asm {                                                                 \
+        mov     eax, param2           ;                                     \
+        push    eax                   ;                                     \
+        mov     eax, param1           ;                                     \
+        push    eax                   ;                                     \
+        mov     ecx, this_            ;                                     \
+        mov     eax, [ecx]            ;                                     \
+        call    [eax+funcOffset]      ;                                     \
+        mov     resultName, eax       ;                                     \
+    }
+
+
+#define CALL_THISCALL_4( resultName, thisPtr, funcOffset, param1, param2, param3, param4 )\
+    void *this_ = (thisPtr);                                                \
+    __asm {                                                                 \
+        mov     eax, param4           ;                                     \
+        push    eax                   ;                                     \
+        mov     eax, param3           ;                                     \
+        push    eax                   ;                                     \
+        mov     eax, param2           ;                                     \
+        push    eax                   ;                                     \
+        mov     eax, param1           ;                                     \
+        push    eax                   ;                                     \
+        mov     ecx, this_            ;                                     \
+        mov     eax, [ecx]            ;                                     \
+        call    [eax+funcOffset]      ;                                     \
+        mov     resultName, eax       ;                                     \
+    }
+
+
+#elif defined(__GNUC__)
+
+
+#define CALL_THISCALL_0( resultName, thisPtr, funcOffset )                  \
+    __asm__ __volatile__ ("movl (%1), %%edx\n\t"                            \
+                          "call *"#funcOffset"(%%edx)\n\t"                  \
+                          :"=a"(resultName) /* Output Operands */           \
+                          :"c"(thisPtr)     /* Input Operands */            \
+                         );                                                 \
+
+
+#define CALL_VOID_THISCALL_1( thisPtr, funcOffset, param1 )                 \
+    __asm__ __volatile__ ("pushl %0\n\t"                                    \
+                          "movl (%1), %%edx\n\t"                            \
+                          "call *"#funcOffset"(%%edx)\n\t"                  \
+                          :                 /* Output Operands */           \
+                          :"r"(param1),     /* Input Operands */            \
+                           "c"(thisPtr)                                     \
+                         );                                                 \
+
+
+#define CALL_THISCALL_1( resultName, thisPtr, funcOffset, param1 )          \
+    __asm__ __volatile__ ("pushl %1\n\t"                                    \
+                          "movl (%2), %%edx\n\t"                            \
+                          "call *"#funcOffset"(%%edx)\n\t"                  \
+                          :"=a"(resultName) /* Output Operands */           \
+                          :"r"(param1),     /* Input Operands */            \
+                           "c"(thisPtr)                                     \
+                          );                                                \
+
+
+#define CALL_THISCALL_1_DOUBLE( resultName, thisPtr, funcOffset, param1 )   \
+    __asm__ __volatile__ ("pushl 4(%1)\n\t"                                 \
+                          "pushl (%1)\n\t"                                  \
+                          "movl (%2), %%edx\n\t"                            \
+                          "call *"#funcOffset"(%%edx);\n\t"                 \
+                          :"=a"(resultName) /* Output Operands */           \
+                          :"a"(&param1),    /* Input Operands */            \
+                           /* Note: Using "r" above instead of "a" fails */ \
+                           /* when using GCC 3.3.3, and maybe later versions*/\
+                           "c"(thisPtr)                                     \
+                          );                                                \
+
+
+#define CALL_THISCALL_2( resultName, thisPtr, funcOffset, param1, param2 )  \
+    __asm__ __volatile__ ("pushl %1\n\t"                                    \
+                          "pushl %2\n\t"                                    \
+                          "movl (%3), %%edx\n\t"                            \
+                          "call *"#funcOffset"(%%edx)\n\t"                  \
+                          :"=a"(resultName) /* Output Operands */           \
+                          :"r"(param2),     /* Input Operands */            \
+                           "r"(param1),                                     \
+                           "c"(thisPtr)                                     \
+                          );                                                \
+
+
+#define CALL_THISCALL_4( resultName, thisPtr, funcOffset, param1, param2, param3, param4 )\
+    __asm__ __volatile__ ("pushl %1\n\t"                                    \
+                          "pushl %2\n\t"                                    \
+                          "pushl %3\n\t"                                    \
+                          "pushl %4\n\t"                                    \
+                          "movl (%5), %%edx\n\t"                            \
+                          "call *"#funcOffset"(%%edx)\n\t"                  \
+                          :"=a"(resultName) /* Output Operands */           \
+                          :"r"(param4),     /* Input Operands  */           \
+                           "r"(param3),                                     \
+                           "r"(param2),                                     \
+                           "r"(param1),                                     \
+                           "c"(thisPtr)                                     \
+                          );                                                \
+
+#endif
+
+
+
+// Our static singleton instance.
+IASIOThiscallResolver IASIOThiscallResolver::instance;
+
+// Constructor called to initialize static Singleton instance above. Note that
+// it is important not to clear that_ incase it has already been set by the call
+// to placement new in ASIOInit().
+IASIOThiscallResolver::IASIOThiscallResolver()
+{
+}
+
+// Constructor called from ASIOInit() below
+IASIOThiscallResolver::IASIOThiscallResolver(IASIO* that)
+: that_( that )
+{
+}
+
+// Implement IUnknown methods as assert(false). IASIOThiscallResolver is not
+// really a COM object, just a wrapper which will work with the ASIO SDK.
+// If you wanted to use ASIO without the SDK you might want to implement COM
+// aggregation in these methods.
+HRESULT STDMETHODCALLTYPE IASIOThiscallResolver::QueryInterface(REFIID riid, void **ppv)
+{
+    (void)riid;     // suppress unused variable warning
+
+    assert( false ); // this function should never be called by the ASIO SDK.
+
+    *ppv = NULL;
+    return E_NOINTERFACE;
+}
+
+ULONG STDMETHODCALLTYPE IASIOThiscallResolver::AddRef()
+{
+    assert( false ); // this function should never be called by the ASIO SDK.
+
+    return 1;
+}
+
+ULONG STDMETHODCALLTYPE IASIOThiscallResolver::Release()
+{
+    assert( false ); // this function should never be called by the ASIO SDK.
+    
+    return 1;
+}
+
+
+// Implement the IASIO interface methods by performing the vptr manipulation
+// described above then delegating to the real implementation.
+ASIOBool IASIOThiscallResolver::init(void *sysHandle)
+{
+    ASIOBool result;
+    CALL_THISCALL_1( result, that_, 12, sysHandle );
+    return result;
+}
+
+void IASIOThiscallResolver::getDriverName(char *name)
+{
+    CALL_VOID_THISCALL_1( that_, 16, name );
+}
+
+long IASIOThiscallResolver::getDriverVersion()
+{
+    ASIOBool result;
+    CALL_THISCALL_0( result, that_, 20 );
+    return result;
+}
+
+void IASIOThiscallResolver::getErrorMessage(char *string)
+{
+     CALL_VOID_THISCALL_1( that_, 24, string );
+}
+
+ASIOError IASIOThiscallResolver::start()
+{
+    ASIOBool result;
+    CALL_THISCALL_0( result, that_, 28 );
+    return result;
+}
+
+ASIOError IASIOThiscallResolver::stop()
+{
+    ASIOBool result;
+    CALL_THISCALL_0( result, that_, 32 );
+    return result;
+}
+
+ASIOError IASIOThiscallResolver::getChannels(long *numInputChannels, long *numOutputChannels)
+{
+    ASIOBool result;
+    CALL_THISCALL_2( result, that_, 36, numInputChannels, numOutputChannels );
+    return result;
+}
+
+ASIOError IASIOThiscallResolver::getLatencies(long *inputLatency, long *outputLatency)
+{
+    ASIOBool result;
+    CALL_THISCALL_2( result, that_, 40, inputLatency, outputLatency );
+    return result;
+}
+
+ASIOError IASIOThiscallResolver::getBufferSize(long *minSize, long *maxSize,
+        long *preferredSize, long *granularity)
+{
+    ASIOBool result;
+    CALL_THISCALL_4( result, that_, 44, minSize, maxSize, preferredSize, granularity );
+    return result;
+}
+
+ASIOError IASIOThiscallResolver::canSampleRate(ASIOSampleRate sampleRate)
+{
+    ASIOBool result;
+    CALL_THISCALL_1_DOUBLE( result, that_, 48, sampleRate );
+    return result;
+}
+
+ASIOError IASIOThiscallResolver::getSampleRate(ASIOSampleRate *sampleRate)
+{
+    ASIOBool result;
+    CALL_THISCALL_1( result, that_, 52, sampleRate );
+    return result;
+}
+
+ASIOError IASIOThiscallResolver::setSampleRate(ASIOSampleRate sampleRate)
+{    
+    ASIOBool result;
+    CALL_THISCALL_1_DOUBLE( result, that_, 56, sampleRate );
+    return result;
+}
+
+ASIOError IASIOThiscallResolver::getClockSources(ASIOClockSource *clocks, long *numSources)
+{
+    ASIOBool result;
+    CALL_THISCALL_2( result, that_, 60, clocks, numSources );
+    return result;
+}
+
+ASIOError IASIOThiscallResolver::setClockSource(long reference)
+{
+    ASIOBool result;
+    CALL_THISCALL_1( result, that_, 64, reference );
+    return result;
+}
+
+ASIOError IASIOThiscallResolver::getSamplePosition(ASIOSamples *sPos, ASIOTimeStamp *tStamp)
+{
+    ASIOBool result;
+    CALL_THISCALL_2( result, that_, 68, sPos, tStamp );
+    return result;
+}
+
+ASIOError IASIOThiscallResolver::getChannelInfo(ASIOChannelInfo *info)
+{
+    ASIOBool result;
+    CALL_THISCALL_1( result, that_, 72, info );
+    return result;
+}
+
+ASIOError IASIOThiscallResolver::createBuffers(ASIOBufferInfo *bufferInfos,
+        long numChannels, long bufferSize, ASIOCallbacks *callbacks)
+{
+    ASIOBool result;
+    CALL_THISCALL_4( result, that_, 76, bufferInfos, numChannels, bufferSize, callbacks );
+    return result;
+}
+
+ASIOError IASIOThiscallResolver::disposeBuffers()
+{
+    ASIOBool result;
+    CALL_THISCALL_0( result, that_, 80 );
+    return result;
+}
+
+ASIOError IASIOThiscallResolver::controlPanel()
+{
+    ASIOBool result;
+    CALL_THISCALL_0( result, that_, 84 );
+    return result;
+}
+
+ASIOError IASIOThiscallResolver::future(long selector,void *opt)
+{
+    ASIOBool result;
+    CALL_THISCALL_2( result, that_, 88, selector, opt );
+    return result;
+}
+
+ASIOError IASIOThiscallResolver::outputReady()
+{
+    ASIOBool result;
+    CALL_THISCALL_0( result, that_, 92 );
+    return result;
+}
+
+
+// Implement our substitute ASIOInit() method
+ASIOError IASIOThiscallResolver::ASIOInit(ASIODriverInfo *info)
+{
+    // To ensure that our instance's vptr is correctly constructed, even if
+    // ASIOInit is called prior to main(), we explicitly call its constructor
+    // (potentially over the top of an existing instance). Note that this is
+    // pretty ugly, and is only safe because IASIOThiscallResolver has no
+    // destructor and contains no objects with destructors.
+    new((void*)&instance) IASIOThiscallResolver( theAsioDriver );
+
+    // Interpose between ASIO client code and the real driver.
+    theAsioDriver = &instance;
+
+    // Note that we never need to switch theAsioDriver back to point to the
+    // real driver because theAsioDriver is reset to zero in ASIOExit().
+
+    // Delegate to the real ASIOInit
+	return ::ASIOInit(info);
+}
+
+
+#endif /* !defined(_MSC_VER) */
+
+#endif /* Win32 */
+

src/include/iasiothiscallresolver.h

@@ -0,0 +1,201 @@
+// ****************************************************************************
+//
+// Changed:         I have modified this file slightly (includes) to work  with
+//                  RtAudio. RtAudio.cpp must include this file after asio.h.                                                    
+//
+// File:			IASIOThiscallResolver.h
+// Description:     The IASIOThiscallResolver class implements the IASIO
+//					interface and acts as a proxy to the real IASIO interface by
+//                  calling through its vptr table using the thiscall calling
+//                  convention. To put it another way, we interpose
+//                  IASIOThiscallResolver between ASIO SDK code and the driver.
+//                  This is necessary because most non-Microsoft compilers don't
+//                  implement the thiscall calling convention used by IASIO.
+//
+//					iasiothiscallresolver.cpp contains the background of this
+//					problem plus a technical description of the vptr
+//                  manipulations.
+//
+//					In order to use this mechanism one simply has to add
+//					iasiothiscallresolver.cpp to the list of files to compile
+//                  and #include <iasiothiscallresolver.h>
+//
+//					Note that this #include must come after the other ASIO SDK
+//                  #includes, for example:
+//
+//					#include <windows.h>
+//					#include <asiosys.h>
+//					#include <asio.h>
+//					#include <asiodrivers.h>
+//					#include <iasiothiscallresolver.h>
+//
+//					Actually the important thing is to #include
+//                  <iasiothiscallresolver.h> after <asio.h>. We have
+//                  incorporated a test to enforce this ordering.
+//
+//					The code transparently takes care of the interposition by
+//                  using macro substitution to intercept calls to ASIOInit()
+//                  and ASIOExit(). We save the original ASIO global
+//                  "theAsioDriver" in our "that" variable, and then set
+//                  "theAsioDriver" to equal our IASIOThiscallResolver instance.
+//
+// 					Whilst this method of resolving the thiscall problem requires
+//					the addition of #include <iasiothiscallresolver.h> to client
+//                  code it has the advantage that it does not break the terms
+//                  of the ASIO licence by publishing it. We are NOT modifying
+//                  any Steinberg code here, we are merely implementing the IASIO
+//					interface in the same way that we would need to do if we
+//					wished to provide an open source ASIO driver.
+//
+//					For compilation with MinGW -lole32 needs to be added to the
+//                  linker options. For BORLAND, linking with Import32.lib is
+//                  sufficient.
+//
+//					The dependencies are with: CoInitialize, CoUninitialize,
+//					CoCreateInstance, CLSIDFromString - used by asiolist.cpp
+//					and are required on Windows whether ThiscallResolver is used
+//					or not.
+//
+//					Searching for the above strings in the root library path
+//					of your compiler should enable the correct libraries to be
+//					identified if they aren't immediately obvious.
+//
+//                  Note that the current implementation of IASIOThiscallResolver
+//                  is not COM compliant - it does not correctly implement the
+//                  IUnknown interface. Implementing it is not necessary because
+//                  it is not called by parts of the ASIO SDK which call through
+//                  theAsioDriver ptr. The IUnknown methods are implemented as
+//                  assert(false) to ensure that the code fails if they are
+//                  ever called.
+// Restrictions:	None. Public Domain & Open Source distribute freely
+//					You may use IASIOThiscallResolver commercially as well as
+//                  privately.
+//					You the user assume the responsibility for the use of the
+//					files, binary or text, and there is no guarantee or warranty,
+//					expressed or implied, including but not limited to the
+//					implied warranties of merchantability and fitness for a
+//					particular purpose. You assume all responsibility and agree
+//					to hold no entity, copyright holder or distributors liable
+//					for any loss of data or inaccurate representations of data
+//					as a result of using IASIOThiscallResolver.
+// Version:         1.4 Added separate macro CALL_THISCALL_1_DOUBLE from
+//                  Andrew Baldwin, and volatile for whole gcc asm blocks,
+//                  both for compatibility with newer gcc versions. Cleaned up
+//                  Borland asm to use one less register.
+//                  1.3 Switched to including assert.h for better compatibility.
+//                  Wrapped entire .h and .cpp contents with a check for
+//                  _MSC_VER to provide better compatibility with MS compilers.
+//                  Changed Singleton implementation to use static instance
+//                  instead of freestore allocated instance. Removed ASIOExit
+//                  macro as it is no longer needed.
+//                  1.2 Removed semicolons from ASIOInit and ASIOExit macros to
+//                  allow them to be embedded in expressions (if statements).
+//                  Cleaned up some comments. Removed combase.c dependency (it
+//                  doesn't compile with BCB anyway) by stubbing IUnknown.
+//                  1.1 Incorporated comments from Ross Bencina including things
+//					such as changing name from ThiscallResolver to
+//					IASIOThiscallResolver, tidying up the constructor, fixing
+//					a bug in IASIOThiscallResolver::ASIOExit() and improving
+//					portability through the use of conditional compilation
+//					1.0 Initial working version.
+// Created:			6/09/2003
+// Authors:         Fraser Adams
+//                  Ross Bencina
+//                  Rene G. Ceballos
+//                  Martin Fay
+//                  Antti Silvast
+//                  Andrew Baldwin
+//
+// ****************************************************************************
+
+
+#ifndef included_iasiothiscallresolver_h
+#define included_iasiothiscallresolver_h
+
+// We only need IASIOThiscallResolver at all if we are on Win32. For other
+// platforms we simply bypass the IASIOThiscallResolver definition to allow us
+// to be safely #include'd whatever the platform to keep client code portable
+#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
+
+
+// If microsoft compiler we can call IASIO directly so IASIOThiscallResolver
+// is not used.
+#if !defined(_MSC_VER)
+
+
+// The following is in order to ensure that this header is only included after
+// the other ASIO headers (except for the case of iasiothiscallresolver.cpp).
+// We need to do this because IASIOThiscallResolver works by eclipsing the
+// original definition of ASIOInit() with a macro (see below).
+#if !defined(iasiothiscallresolver_sourcefile)
+	#if !defined(__ASIO_H)
+	#error iasiothiscallresolver.h must be included AFTER asio.h
+	#endif
+#endif
+
+#include <windows.h>
+#include "iasiodrv.h" /* From ASIO SDK */
+
+
+class IASIOThiscallResolver : public IASIO {
+private:
+	IASIO* that_; // Points to the real IASIO
+
+	static IASIOThiscallResolver instance; // Singleton instance
+
+	// Constructors - declared private so construction is limited to
+    // our Singleton instance
+    IASIOThiscallResolver();
+	IASIOThiscallResolver(IASIO* that);
+public:
+
+    // Methods from the IUnknown interface. We don't fully implement IUnknown
+    // because the ASIO SDK never calls these methods through theAsioDriver ptr.
+    // These methods are implemented as assert(false).
+    virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppv);
+    virtual ULONG STDMETHODCALLTYPE AddRef();
+    virtual ULONG STDMETHODCALLTYPE Release();
+
+    // Methods from the IASIO interface, implemented as forwarning calls to that.
+	virtual ASIOBool init(void *sysHandle);
+	virtual void getDriverName(char *name);
+	virtual long getDriverVersion();
+	virtual void getErrorMessage(char *string);
+	virtual ASIOError start();
+	virtual ASIOError stop();
+	virtual ASIOError getChannels(long *numInputChannels, long *numOutputChannels);
+	virtual ASIOError getLatencies(long *inputLatency, long *outputLatency);
+	virtual ASIOError getBufferSize(long *minSize, long *maxSize, long *preferredSize, long *granularity);
+	virtual ASIOError canSampleRate(ASIOSampleRate sampleRate);
+	virtual ASIOError getSampleRate(ASIOSampleRate *sampleRate);
+	virtual ASIOError setSampleRate(ASIOSampleRate sampleRate);
+	virtual ASIOError getClockSources(ASIOClockSource *clocks, long *numSources);
+	virtual ASIOError setClockSource(long reference);
+	virtual ASIOError getSamplePosition(ASIOSamples *sPos, ASIOTimeStamp *tStamp);
+	virtual ASIOError getChannelInfo(ASIOChannelInfo *info);
+	virtual ASIOError createBuffers(ASIOBufferInfo *bufferInfos, long numChannels, long bufferSize, ASIOCallbacks *callbacks);
+	virtual ASIOError disposeBuffers();
+	virtual ASIOError controlPanel();
+	virtual ASIOError future(long selector,void *opt);
+	virtual ASIOError outputReady();
+
+    // Class method, see ASIOInit() macro below.
+    static ASIOError ASIOInit(ASIODriverInfo *info); // Delegates to ::ASIOInit
+};
+
+
+// Replace calls to ASIOInit with our interposing version.
+// This macro enables us to perform thiscall resolution simply by #including
+// <iasiothiscallresolver.h> after the asio #includes (this file _must_ be
+// included _after_ the asio #includes)
+
+#define ASIOInit(name) IASIOThiscallResolver::ASIOInit((name))
+
+
+#endif /* !defined(_MSC_VER) */
+
+#endif /* Win32 */
+
+#endif /* included_iasiothiscallresolver_h */
+
+