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#include "DevEnum.h"
#include "ds2.h"
#include "strsafe.h"
static int device_count=0;
static const GUID NULL_GUID;
BOOL WINAPI DsDevEnum::DSEnumCallback(LPGUID guid,LPCTSTR desc,LPCTSTR,DS_DEV *** var)
{
DS_DEV * dev=new DS_DEV;
size_t length=lstrlen(desc);
length+=4; // "##: "
length+=1; // null terminator
dev->name = (TCHAR *)calloc(sizeof(TCHAR),length);
StringCchPrintf(dev->name,length, TEXT("%02d: %s"), device_count++, desc);
dev->guid=guid ? *guid : NULL_GUID;
**var = dev;
*var=&dev->next;
return 1;
}
DsDevEnum::DsDevEnum()
{
DS2::InitDLL();
ds_devs=0;
DS_DEV ** dev_ptr=&ds_devs;
device_count = 1;
if (DS2::pDirectSoundEnumerate)
DS2::pDirectSoundEnumerate((LPDSENUMCALLBACK)DSEnumCallback,&dev_ptr);
*dev_ptr=0;
pDev=ds_devs;
}
DsDevEnum::~DsDevEnum()
{
DS_DEV* dev=ds_devs;
while(dev)
{
DS_DEV * next=dev->next;
free(dev->name);
delete dev;
dev=next;
}
// ds_devs=0;
}
bool DsDevEnum::FindGuid(const GUID & guid)
{
pDev=ds_devs;
while(pDev)
{
if (pDev->guid== guid) return true;
pDev=pDev->next;
}
return false;
}
bool DsDevEnum::FindDefault()
{
return FindGuid(NULL_GUID);
}
bool DsDevEnum::FindName(const TCHAR *deviceToFind)
{
pDev=ds_devs;
if (!deviceToFind) return true;
while(pDev)
{
if (!lstrcmpi(pDev->name,deviceToFind)) return true;
pDev=pDev->next;
}
return false;
}
/*
const GUID DsDevEnum::GuidFromName(const char* name)
{
return FindName(name) ? GetGuid() : NULL_GUID;
}
const char * DsDevEnum::NameFromGuid(const GUID & g, char * def)
{
return FindGuid(g) ? GetName() : def;
}
*/
const GUID DsDevEnum::GetGuid()
{
return pDev ? pDev->guid : NULL_GUID;
}
static bool _getcaps(IDirectSound * pDS,LPDSCAPS pCaps,DWORD * speakercfg)
{
bool rv = true;
if (pCaps)
{
memset(pCaps,0,sizeof(*pCaps));
pCaps->dwSize=sizeof(*pCaps);
if (FAILED(pDS->GetCaps(pCaps))) rv = false;
}
if (speakercfg)
{
if (FAILED(pDS->GetSpeakerConfig(speakercfg))) rv = false;
}
return rv;
}
bool DsDevEnum::GetCapsFromGuid(const GUID *dev,LPDSCAPS pCaps,DWORD * speakercfg)
{
bool rv=false;
if (!dev) dev=&NULL_GUID;
if (DS2::TryGetDevCaps(dev,pCaps,speakercfg)) rv=true;
else
{
IDirectSound * l_pDS=0;
if (SUCCEEDED(DS2::myDirectSoundCreate(dev,&l_pDS)) && l_pDS)
{
rv=_getcaps(l_pDS,pCaps,speakercfg);
l_pDS->Release();
}
}
return rv;
}
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