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