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A3D_DLL.CPP
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A3D_DLL.CPP
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//===========================================================================
//
// A3D_DLL.CPP
//
// Purpose: Aureal A3D 1.x interface library (Wrapper to DirectSound3D).
//
// Copyright (C) 2004 Dmitry Nesterenko. All rights reserved.
//
//===========================================================================
#include <objbase.h>
#include <initguid.h>
#include <dsound.h>
#include "ia3dapi.h"
#include "a3d_dll.h"
#include "a3d_dal.h"
#ifdef _DEBUG
# include <crtdbg.h>
# include <stdio.h>
# include <stdarg.h>
#else
# pragma intrinsic(memset, memcmp, memcpy, strcpy, strcat, strlen)
#endif
// Compilation options.
#ifdef _DEBUG
# define WRITE_LOG_FILE TRUE
#endif
// Handle of shared library module.
HMODULE g_hModule = NULL;
// Handle of application window.
HWND g_hWnd = NULL;
// Counter number of locks.
LONG g_cLock = 0;
// Counter number of all objects.
LONG g_cObj = 0;
#ifdef _DEBUG
//===========================================================================
//
// ::LogMsg
//
// Purpose: Output logging message.
//
// Parameters:
// pszFormat LPCTSTR pointer to format string for message.
// ... (?) set other parameters for message.
//
//===========================================================================
void LogMsg(LPCTSTR pcszFormat, ...)
{
_ASSERTE(pcszFormat && !IsBadReadPtr(pcszFormat, sizeof(*pcszFormat)));
va_list vlArgs;
TCHAR szBuffer[256];
#if WRITE_LOG_FILE
TCHAR szLogName[MAX_PATH];
TCHAR szCallName[MAX_PATH];
// Get library module file name and truncate extension from it.
DWORD dwLength = GetModuleFileName(g_hModule, szLogName, sizeof(szLogName));
for (UINT i = dwLength; i; i--)
{
// Found file extension pointer.
if (TEXT('.') == szLogName[i])
break;
// Found begin of file name (file extension not exist).
if (TEXT('\\') == szLogName[i] || TEXT(':') == szLogName[i])
{
i = dwLength;
break;
}
}
// Get caller process module file name and extract it name.
dwLength = GetModuleFileName(NULL, szCallName, sizeof(szCallName));
for (UINT j = dwLength; j; j--)
{
// Truncate file extension.
if (TEXT('.') == szCallName[j])
{
dwLength = j + 1;
continue;
}
// Found begin of file name.
if (TEXT('\\') == szCallName[j] || TEXT(':') == szCallName[j])
{
j++;
break;
}
}
// Make log file name from library and caller names.
szLogName[i++] = TEXT('_');
lstrcat(lstrcpyn(&szLogName[i], &szCallName[j], dwLength - j), TEXT(".log"));
// Create or open log file.
HANDLE hLogFile = CreateFile(szLogName, GENERIC_WRITE, FILE_SHARE_READ,
NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (INVALID_HANDLE_VALUE != hLogFile)
{
SYSTEMTIME timeLocal;
DWORD dwWritten;
// Save message time prefix to output string.
GetLocalTime(&timeLocal);
wsprintf(szBuffer, TEXT("%02u/%02u/%04u %02u:%02u:%02u.%03u "),
timeLocal.wDay, timeLocal.wMonth, timeLocal.wYear,
timeLocal.wHour, timeLocal.wMinute, timeLocal.wSecond,
timeLocal.wMilliseconds);
// Format logging message.
va_start(vlArgs,pcszFormat);
vsprintf(&szBuffer[lstrlen(szBuffer)], pcszFormat, vlArgs);
va_end(vlArgs);
// Write message string to log file.
lstrcat(szBuffer, TEXT("\r\n"));
SetFilePointer(hLogFile, 0, NULL, FILE_END);
WriteFile(hLogFile, szBuffer, lstrlen(szBuffer) * sizeof(TCHAR), &dwWritten, NULL);
CloseHandle(hLogFile);
}
#endif
// Save message prefix to output string.
lstrcpy(szBuffer, TEXT("A3D: "));
// Format logging message.
va_start(vlArgs, pcszFormat);
vsprintf(&szBuffer[lstrlen(szBuffer)], pcszFormat, vlArgs);
va_end(vlArgs);
// Output message to debugger.
lstrcat(szBuffer, TEXT("\n"));
OutputDebugString(szBuffer);
}
//===========================================================================
//
// ::Result
//
// Purpose: Convert standart return code to text string.
//
// Parameters:
// hResult HRESULT return code value.
//
// Return: Pointer to text string with result.
//
//===========================================================================
LPCTSTR Result(HRESULT hResult)
{
if (SUCCEEDED(hResult))
return TEXT("Ok");
TCHAR szMessage[256];
// Get system message for error code.
if (!FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, hResult, 0, szMessage, sizeof(szMessage) / sizeof(TCHAR), NULL))
lstrcpy(szMessage, TEXT("UNKNOWN ERROR!"));
else
for (UINT i = 0; TEXT('\0') != szMessage[i]; i++)
if (TEXT('\r') == szMessage[i] || TEXT('\n') == szMessage[i])
{
szMessage[i] = TEXT('\0');
break;
}
static TCHAR szReturn[256];
// Format error code and message text.
wsprintf(szReturn, TEXT("%#x:\"%s\""), hResult, szMessage);
return szReturn;
}
#endif
//===========================================================================
//
// ::GuidToStr
//
// Purpose: Convert GUID to text string.
//
// Parameters:
// rGuid REFGUID reference for GUID.
// pszBuffer LPTSTR buffer pointer for text string.
// iLen UINT buffer size for text string.
//
// Return: Pointer to text string with GUID.
//
//===========================================================================
LPTSTR GuidToStr(REFGUID rGuid, LPTSTR pszBuffer, UINT iSize)
{
#ifdef _DEBUG
_ASSERTE(pszBuffer && !IsBadWritePtr(pszBuffer, sizeof(*pszBuffer)));
_ASSERTE(iSize);
#endif
if (!&rGuid)
lstrcpyn(pszBuffer, TEXT("{NULL}"), iSize);
else
{
WCHAR wcGuid[64];
// Convert GUID to text string.
StringFromGUID2(rGuid, wcGuid, sizeof(wcGuid) / sizeof(WCHAR));
#ifdef UNICODE
lstrcpyn(pszBuffer, wcGuid, iSize);
#else
WideCharToMultiByte(CP_ACP, 0, wcGuid, -1, pszBuffer, iSize, NULL, NULL);
#endif
}
return pszBuffer;
}
//===========================================================================
//
// ::SplashScreen
//
// Purpose: Launch A3D splash application.
//
// Parameters:
// hWnd HWND handler of parent window.
//
//===========================================================================
static void SplashScreen(HWND hWnd)
{
#ifdef _DEBUG
LogMsg(TEXT("SplashScreen(%#x)"), hWnd);
#endif
// Execute this function only first time.
static bool bFirstCall = true;
if (bFirstCall)
bFirstCall = false;
else
return;
TCHAR szSplashFile[MAX_PATH];
HKEY hKey;
DWORD dwPlayAudio = 0, dwDisplayScreen = 0;
bool bPathExist = false;
// Open registry entry under HKEY_LOCAL_MACHINE.
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, TEXT("Software\\Aureal\\A3D"), 0,
KEY_READ, &hKey) == ERROR_SUCCESS)
{
DWORD dwSize = sizeof(szSplashFile);
// Read registry value.
if (RegQueryValueEx(hKey, TEXT("SplashPath"), NULL, NULL,
(LPBYTE)szSplashFile, &dwSize) == ERROR_SUCCESS)
bPathExist = true;
// Read registry values and close registry entry.
dwSize = sizeof(dwPlayAudio);
RegQueryValueEx(hKey, TEXT("SplashAudio"), NULL, NULL,
(LPBYTE)dwPlayAudio, &dwSize);
dwSize = sizeof(dwDisplayScreen);
RegQueryValueEx(hKey, TEXT("SplashScreen"), NULL, NULL,
(LPBYTE)dwDisplayScreen, &dwSize);
RegCloseKey(hKey);
}
// Make file name for launch splash application.
if (bPathExist)
lstrcat(szSplashFile, TEXT("\\A3DSplsh.exe"));
else
lstrcpy(szSplashFile, TEXT("A3DSplsh.exe"));
// Launch A3D splash application.
ShellExecute(hWnd, NULL, szSplashFile, NULL, NULL, SW_SHOWNORMAL);
// Delay for play audio and/or display logo screen.
if (dwPlayAudio || dwDisplayScreen)
Sleep(3500);
// Restore parent window.
if (hWnd && IsIconic(hWnd))
ShowWindow(hWnd, SW_RESTORE);
}
//===========================================================================
//
// ::CreateComObject
//
// Purpose: Create the registry entries for COM object.
//
// Parameters:
// rObjGuid REFGUID object CLSID.
// pcszRootName LPCTSTR name of object in HKEY_CLASSES_ROOT.
// pcszObjName LPCTSTR description of object.
//
// Return: S_OK if registration successful, error otherwise.
//
//===========================================================================
static void CreateComObject(REFGUID rObjGuid, LPCTSTR pcszRootName,
LPCTSTR pcszObjName)
{
#ifdef _DEBUG
TCHAR szGuid[64];
LogMsg(TEXT("CreateComObject(%s,%s,%s)"),
GuidToStr(rObjGuid, szGuid, sizeof(szGuid)), pcszRootName, pcszObjName);
_ASSERTE(pcszRootName && !IsBadReadPtr(pcszRootName, sizeof(*pcszRootName)));
_ASSERTE(pcszObjName && !IsBadReadPtr(pcszObjName, sizeof(*pcszObjName)));
#endif
TCHAR szObjGuid[64];
TCHAR cszRegSz[] = TEXT("REG_SZ");
TCHAR szKeyName[128];
HKEY hKey, hSubKey;
// Create the registry entry name string using CLSID.
GuidToStr(rObjGuid, szObjGuid, sizeof(szObjGuid));
// Create registry entry HKEY_CLASSES_ROOT\<Root Name>.
if (RegCreateKeyEx(HKEY_CLASSES_ROOT, pcszRootName, 0, cszRegSz,
REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hKey, NULL) == ERROR_SUCCESS)
{
// Set default value for registry key.
RegSetValueEx(hKey, NULL, 0, REG_SZ, (LPBYTE)pcszObjName,
lstrlen(pcszObjName) + 1);
// Create registry entry HKEY_CLASSES_ROOT\<Root Name>\CLSID.
if (RegCreateKeyEx(hKey, TEXT("CLSID"), 0, cszRegSz,
REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hSubKey, NULL) == ERROR_SUCCESS)
{
// Set default value for registry key.
RegSetValueEx(hSubKey, NULL, 0, REG_SZ, (LPBYTE)szObjGuid,
lstrlen(szObjGuid) + 1);
RegCloseKey(hSubKey);
}
RegCloseKey(hKey);
}
// Create the registry entry name for object using it CLSID.
lstrcat(lstrcpy(szKeyName, TEXT("CLSID\\")), szObjGuid);
// Create registry entry HKEY_CLASSES_ROOT\CLSID\{clsid}.
if (RegCreateKeyEx(HKEY_CLASSES_ROOT, szKeyName, 0, cszRegSz,
REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hKey, NULL) == ERROR_SUCCESS)
{
// Set default value for registry key.
RegSetValueEx(hKey, NULL, 0, REG_SZ, (LPBYTE)pcszObjName,
lstrlen(pcszObjName) + 1);
// Set registry entry application identifier.
RegSetValueEx(hKey, TEXT("AppID"), 0, REG_SZ, (LPBYTE)szObjGuid,
lstrlen(szObjGuid) + 1);
// Create registry entry HKEY_CLASSES_ROOT\CLSID\{clsid}\InprocServer32.
if (RegCreateKeyEx(hKey, TEXT("InprocServer32"), 0, cszRegSz,
REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hSubKey, NULL) == ERROR_SUCCESS)
{
TCHAR szDllName[MAX_PATH];
const TCHAR cszApartment[] = TEXT("Apartment");
// Get shared library module name.
GetModuleFileName(g_hModule, szDllName, sizeof(szDllName));
// Set default value for registry key.
RegSetValueEx(hSubKey, NULL, 0, REG_SZ, (LPBYTE)szDllName,
lstrlen(szDllName) + 1);
// Set threading model value for registry entry.
RegSetValueEx(hSubKey, TEXT("ThreadingModel"), 0, REG_SZ,
(LPBYTE)cszApartment, sizeof(cszApartment));
RegCloseKey(hSubKey);
}
// Close registry entry.
RegCloseKey(hKey);
}
}
//===========================================================================
//
// ::DeleteComObject
//
// Purpose: Remove the registry entries for COM object.
//
// Parameters:
// rObjGuid REFGUID object CLSID.
// pcszRootName LPCTSTR name of object in HKEY_CLASSES_ROOT.
//
//===========================================================================
static void DeleteComObject(REFGUID rObjGuid, LPCTSTR pcszRootName)
{
#ifdef _DEBUG
TCHAR szGuid[64];
LogMsg(TEXT("DeleteComObject(%s,%s)"),
GuidToStr(rObjGuid, szGuid, sizeof(szGuid)), pcszRootName);
_ASSERTE(pcszRootName && !IsBadReadPtr(pcszRootName, sizeof(*pcszRootName)));
#endif
TCHAR szObjGuid[64];
TCHAR szKeyName[128];
HKEY hKey;
// Open registry entry HKEY_CLASSES_ROOT\<Root Name>.
if (RegOpenKeyEx(HKEY_CLASSES_ROOT, pcszRootName, 0, KEY_WRITE, &hKey) == ERROR_SUCCESS)
{
// Delete registry entry HKEY_CLASSES_ROOT\<Root Name>\CLSID.
RegDeleteKey(hKey, TEXT("CLSID"));
RegCloseKey(hKey);
// Delete registry entry HKEY_CLASSES_ROOT\<Root Name>.
RegDeleteKey(HKEY_CLASSES_ROOT, pcszRootName);
}
// Create the registry entry name for object using it CLSID.
GuidToStr(rObjGuid, szObjGuid, sizeof(szObjGuid));
lstrcat(lstrcpy(szKeyName, TEXT("CLSID\\")), szObjGuid);
// Open registry entry HKEY_CLASSES_ROOT\CLSID\{clsid}.
if (RegOpenKeyEx(HKEY_CLASSES_ROOT, szKeyName, 0, KEY_WRITE, &hKey) == ERROR_SUCCESS)
{
// Delete registry entry HKEY_CLASSES_ROOT\CLSID\{clsid}\InprocServer32.
RegDeleteKey(hKey, TEXT("InprocServer32"));
RegCloseKey(hKey);
// Delete registry entry HKEY_CLASSES_ROOT\CLSID\{clsid}.
RegDeleteKey(HKEY_CLASSES_ROOT, szKeyName);
}
}
//===========================================================================
//
// ::DllMain
//
// Purpose: Entry point for DLL.
//
// Parameters:
// hInstance HANDLE instance of DLL module.
// dwReason DWORD reason of call.
// pvReserved LPVOID reserved.
//
// Return: TRUE if OK.
//
//===========================================================================
BOOL WINAPI DllMain(HANDLE hInstance, DWORD dwReason, LPVOID pvReserved)
{
// Save library module handle and disable thread notification calls.
if (DLL_PROCESS_ATTACH == dwReason)
{
#ifdef _DEBUG
// Load DirectSound shared library DSOUND.DLL.
HINSTANCE hDsDll = LoadLibrary(TEXT("dsound.dll"));
if (!hDsDll)
return FALSE;
// Get address of the GetDeviceID function.
FARPROC pfnGetDeviceID = GetProcAddress(hDsDll, "GetDeviceID");
// Free DirectSound shared library.
FreeLibrary(hDsDll);
// Check existing of entry point.
if (!pfnGetDeviceID)
return FALSE;
#endif
// Save handle of shared library module.
g_hModule = (HMODULE)hInstance;
DisableThreadLibraryCalls(g_hModule);
}
#ifdef _DEBUG
LogMsg(TEXT("DllMain(%#x,%u)"), hInstance, dwReason);
#endif
return TRUE;
}
//===========================================================================
//
// ::DllCanUnloadNow
//
// Purpose: Called periodically by OLE in order to determine if the
// DLL can be freed.
//
// Return: S_OK if there are no objects in use and the class factory
// isn't locked.
//
//===========================================================================
STDAPI DllCanUnloadNow()
{
#ifdef _DEBUG
LogMsg(TEXT("DllCanUnloadNow()=(%u,%u)"), g_cLock, g_cObj);
#endif
// Check locks and objects counters.
if (g_cLock || g_cObj)
return S_FALSE;
return S_OK;
}
//===========================================================================
//
// ::DllGetClassObject
//
// Purpose: Called by OLE when some client wants a class factory. Return
// one only if it is the sort of class this DLL supports.
//
//===========================================================================
STDAPI DllGetClassObject(REFCLSID rClsid, REFIID rIid, LPVOID * ppvObj)
{
#ifdef _DEBUG
TCHAR szGuid[64];
LogMsg(TEXT("DllGetClassObject(%s)..."),
GuidToStr(rClsid, szGuid, sizeof(szGuid)));
_ASSERTE(ppvObj && !IsBadWritePtr(ppvObj, sizeof(*ppvObj)));
#endif
// Check arguments values.
if (!ppvObj)
return E_POINTER;
// For future invalid return.
*ppvObj = NULL;
#ifdef _DEBUG
if (CLSID_A3d != rClsid && CLSID_A3dDal != rClsid)
LogMsg(TEXT("...DllGetClassObject()=E_FAIL!"));
#endif
// Check arguments values.
if (CLSID_A3d != rClsid && CLSID_A3dDal != rClsid)
return E_FAIL;
// Create new A3dClassFactory object.
LPA3DCLASSFACTORY pA3dClassFactory = new IA3dClassFactory;
if (!pA3dClassFactory)
return E_OUTOFMEMORY;
// Kill the object if initial creation failed.
HRESULT hr = pA3dClassFactory->QueryInterface(rIid, ppvObj);
if (FAILED(hr))
delete pA3dClassFactory;
#ifdef _DEBUG
LogMsg(TEXT("...=%s"), Result(hr));
#endif
return hr;
}
//===========================================================================
//
// ::DllRegisterServer
//
// Purpose: Called during setup or by regsvr32.
//
// Return: S_OK if unregistration successful, error otherwise.
//
//===========================================================================
STDAPI DllRegisterServer()
{
#ifdef _DEBUG
LogMsg(TEXT("DllRegisterServer()"));
#endif
CreateComObject(CLSID_A3d, TEXT("A3d"), TEXT("A3d Object"));
CreateComObject(CLSID_A3dDal, TEXT("A3dDAL"), TEXT("A3dDAL Object"));
return S_OK;
}
//===========================================================================
//
// ::DllUnregisterServer
//
// Purpose: Called when it is time to remove the registry entries.
//
// Return: S_OK if unregistration successful, error otherwise.
//
//===========================================================================
STDAPI DllUnregisterServer()
{
#ifdef _DEBUG
LogMsg(TEXT("DllUnregisterServer()"));
#endif
DeleteComObject(CLSID_A3d, TEXT("A3d"));
DeleteComObject(CLSID_A3dDal, TEXT("A3dDAL"));
return S_OK;
}
//===========================================================================
//
// ::A3dCreate
//
// Purpose: Create new A3dSound object.
//
// Parameters:
// pGuidDevice LPGUID identifying the device the caller
// desires to have for the new object.
// ppDS LPLPDIRECTSOUND in which to store the desired
// interface pointer for the new object.
// pUnkOuter LPUNKNOWN to the controlling IUnknown if we are
// being used in an aggregation.
//
// Return: A3D_OK if successful, error otherwise.
//
//===========================================================================
HRESULT WINAPI A3dCreate(LPGUID pGuidDevice, LPDIRECTSOUND * ppDS, LPUNKNOWN pUnkOuter)
{
#ifdef _DEBUG
TCHAR szGuid[64];
LogMsg(TEXT("A3dCreate(%s,%#x,%#x)"), GuidToStr((REFGUID)*pGuidDevice,
szGuid, sizeof(szGuid)), ppDS, pUnkOuter);
_ASSERTE(ppDS && !IsBadWritePtr(ppDS, sizeof(*ppDS)));
_ASSERTE(!pUnkOuter);
#endif
HKEY hKey;
// Open registry key for A3D.
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, TEXT("Software\\Aureal\\A3D"), 0,
KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS)
{
INT iForceDS = 0;
DWORD dwLength = sizeof(iForceDS);
// Read value from registry key.
RegQueryValueEx(hKey, TEXT("ForceDS"), NULL, NULL, (LPBYTE)&iForceDS, &dwLength);
RegCloseKey(hKey);
// Force using DirectSound.
if (iForceDS)
{
// Standard beep using the computer speaker.
MessageBeep(-1);
// Get initialized DirectSound object.
HRESULT hr = DirectSoundCreate(pGuidDevice, ppDS, NULL);
if (SUCCEEDED(hr) && (iForceDS > 1))
return A3D_OK;
return hr;
}
}
// Check arguments values.
if (!ppDS)
return E_POINTER;
// For future invalid return.
*ppDS = NULL;
// This object doesnt support aggregation.
if (pUnkOuter)
return CLASS_E_NOAGGREGATION;
LPDIRECTSOUND pDS;
// Get initialized DirectSound object.
HRESULT hr = DirectSoundCreate(pGuidDevice, &pDS, NULL);
if (FAILED(hr))
return hr;
// Create new A3dSound object.
LPA3DSOUND pA3dSound = new IA3dSound(pDS);
// Decrease reference of DirectSound object.
pDS->Release();
if (!pA3dSound)
return E_OUTOFMEMORY;
// Kill the object if initial creation failed.
hr = pA3dSound->QueryInterface(IID_IDirectSound, (LPVOID *)ppDS);
if (FAILED(hr))
{
delete pA3dSound;
return hr;
}
return A3D_OK;
}
//===========================================================================
//
// IA3dClassFactory::IA3dClassFactory
// IA3dClassFactory::~IA3dClassFactory
//
// Constructor Parameters:
// None
//
//===========================================================================
IA3dClassFactory::IA3dClassFactory() :
m_cRef(0)
{
#ifdef _DEBUG
LogMsg(TEXT("IA3dClassFactory::IA3dClassFactory()=%u"), g_cObj + 1);
#endif
// Increase object counter.
InterlockedIncrement(&g_cObj);
}
IA3dClassFactory::~IA3dClassFactory()
{
#ifdef _DEBUG
LogMsg(TEXT("IA3dClassFactory::~IA3dClassFactory()=%u"), g_cObj - 1);
_ASSERTE(g_cObj > 0);
#endif
// Decrease object counter.
InterlockedDecrement(&g_cObj);
}
//===========================================================================
//
// IA3dClassFactory::QueryInterface
// IA3dClassFactory::AddRef
// IA3dClassFactory::Release
//
// Purpose: Standard OLE routines needed for all interfaces.
//
//===========================================================================
STDMETHODIMP IA3dClassFactory::QueryInterface(REFIID rIid, LPVOID * ppvObj)
{
#ifdef _DEBUG
TCHAR szGuid[64];
LogMsg(TEXT("IA3dClassFactory::QueryInterface(%s,%#x)"),
GuidToStr(rIid, szGuid, sizeof(szGuid)), ppvObj);
_ASSERTE(ppvObj && !IsBadWritePtr(ppvObj, sizeof(*ppvObj)));
#endif
// Check arguments values.
if (!ppvObj)
return E_POINTER;
// For future invalid return.
*ppvObj = NULL;
#ifdef _DEBUG
if ((IID_IUnknown != rIid) && (IID_IClassFactory != rIid))
LogMsg(TEXT("...QueryInterface()=E_NOINTERFACE!"));
#endif
// Only Unknown or ClassFactory objects.
if ((IID_IUnknown != rIid) && (IID_IClassFactory != rIid))
return E_NOINTERFACE;
// Return this object;
*ppvObj = this;
AddRef();
return S_OK;
}
STDMETHODIMP_(ULONG) IA3dClassFactory::AddRef()
{
#ifdef _DEBUG
LogMsg(TEXT("IA3dClassFactory::AddRef()=%u"), m_cRef + 1);
_ASSERTE(m_cRef >= 0);
#endif
// Increase reference counter.
return InterlockedIncrement(&m_cRef);
}
STDMETHODIMP_(ULONG) IA3dClassFactory::Release()
{
#ifdef _DEBUG
LogMsg(TEXT("IA3dClassFactory::Release()=%u"), m_cRef - 1);
_ASSERTE(m_cRef > 0);
#endif
// Decrease reference counter.
ULONG cRef = InterlockedDecrement(&m_cRef);
if (!cRef)
{
delete this;
return 0;
}
return cRef;
}
//===========================================================================
//
// IA3dClassFactory::CreateInstance
//
// Purpose: Instantiates a Locator object returning an interface pointer.
//
// Parameters:
// pUnkOuter LPUNKNOWN to the controlling IUnknown if we are
// being used in an aggregation.
// rIid REFIID identifying the interface the caller
// desires to have for the new object.
// ppvObj PPVOID in which to store the desired
// interface pointer for the new object.
//
// Return: S_OK if successful, error otherwise.
//
//===========================================================================
STDMETHODIMP IA3dClassFactory::CreateInstance(LPUNKNOWN pUnkOuter,
REFIID rIid, LPVOID * ppvObj)
{
#ifdef _DEBUG
TCHAR szGuid[64];
LogMsg(TEXT("IA3dClassFactory::CreateInstance(%s)"),
GuidToStr(rIid, szGuid, sizeof(szGuid)));
_ASSERTE(ppvObj && !IsBadWritePtr(ppvObj, sizeof(*ppvObj)));
_ASSERTE(!pUnkOuter);
#endif
// Check arguments values.
if (!ppvObj)
return E_POINTER;
// For future invalid return.
*ppvObj = NULL;
// This object doesnt support aggregation.
if (pUnkOuter)
return CLASS_E_NOAGGREGATION;
LPUNKNOWN pObj;
#ifdef _DEBUG
if ((IID_IUnknown != rIid) && (IID_IClassFactory != rIid) &&
(IID_IA3d != rIid) && (IID_IA3d2 != rIid) &&
(IID_IDirectSound != rIid) && (IID_IA3dDal != rIid))
LogMsg(TEXT("...QueryInterface()=E_NOINTERFACE!"));
#endif
// Create the locator object.
if ((IID_IUnknown == rIid) || (IID_IClassFactory == rIid))
pObj = new IA3dClassFactory;
else if ((IID_IA3d == rIid) || (IID_IA3d2 == rIid))
pObj = new IA3dX(NULL);
else if (IID_IDirectSound == rIid)
pObj = new IA3dSound(NULL);
else if (IID_IA3dDal == rIid)
pObj = new IA3dDal(NULL);
else
return E_NOINTERFACE;
if (!pObj)
return E_OUTOFMEMORY;
// Kill the object if initial creation failed.
HRESULT hr = pObj->QueryInterface(rIid, ppvObj);
if (FAILED(hr))
delete pObj;
return hr;
}
//===========================================================================
//
// IA3dClassFactory::LockServer
//
// Purpose:
// Increments or decrements the lock count of the DLL. If the
// lock count goes to zero and there are no objects, the DLL
// is allowed to unload. See DllCanUnloadNow.
//
// Parameters:
// fLock BOOL specifying whether to increment or
// decrement the lock count.
//
// Return: S_OK always.
//
//===========================================================================
STDMETHODIMP IA3dClassFactory::LockServer(BOOL fLock)
{
#ifdef _DEBUG
LogMsg(TEXT("IA3dClassFactory::LockServer(%u,%u)"), g_cLock, fLock);
#endif
// Increase or decrease the lock counter.
if (fLock)
InterlockedIncrement(&g_cLock);
else
InterlockedDecrement(&g_cLock);
return S_OK;
}
//===========================================================================
//
// IA3dX::CreateKsPropertySet
//
// Purpose: Get KsPropertySet object.
//
// Return: S_OK if successful, error otherwise.
//
//===========================================================================
STDMETHODIMP IA3dX::CreateKsPropertySet()
{
#ifdef _DEBUG
LogMsg(TEXT("IA3dX::CreateKsPropertySet()..."));
_ASSERTE(m_pDS);
#endif
HRESULT hr;
WAVEFORMATEX wfxFormat;
ZeroMemory(&wfxFormat, sizeof(wfxFormat));
wfxFormat.wFormatTag = WAVE_FORMAT_PCM;
DSBUFFERDESC DSBufDesc;
ZeroMemory(&DSBufDesc, sizeof(DSBufDesc));
DSBufDesc.dwSize = sizeof(DSBufDesc);
DSBufDesc.dwFlags = DSBCAPS_LOCHARDWARE | DSBCAPS_CTRL3D;
DSBufDesc.dwBufferBytes = DSBSIZE_MIN;
DSBufDesc.lpwfxFormat = &wfxFormat;
// Loop for channels: 1 or 2.
for (WORD wChannels = 1; wChannels <= 2; wChannels++)
{
wfxFormat.nChannels = wChannels;
// Loop for samples per second: see list below.
const DWORD dwSps[] = {8000, 11025, 22050, 44100, 48000};
for (UINT i = 0; i < (sizeof(dwSps) / sizeof(dwSps[0])); i++)
{
wfxFormat.nSamplesPerSec = dwSps[i];
// Loop for bits per sample: 8 or 16.
for (WORD wBps = 8; wBps <= 16; wBps += 8)
{
wfxFormat.wBitsPerSample = wBps;
wfxFormat.nBlockAlign = wfxFormat.wBitsPerSample / 8 * wfxFormat.nChannels;
wfxFormat.nAvgBytesPerSec = wfxFormat.nSamplesPerSec * wfxFormat.nBlockAlign;
LPDIRECTSOUNDBUFFER pDSB;
// Create new DirectSoundBuffer object.
hr = m_pDS->CreateSoundBuffer(&DSBufDesc, &pDSB, NULL);
if (SUCCEEDED(hr))
{
// Get KsPropertySet object.
hr = pDSB->QueryInterface(IID_IKsPropertySet, (LPVOID *)&m_pKsPS);
// Delete DirectSoundBuffer object.
pDSB->Release();
#ifdef _DEBUG
if (SUCCEEDED(hr))
{
LogMsg(TEXT("...Channels=%u"), wfxFormat.nChannels);
LogMsg(TEXT("...SamplesPerSec=%u"), wfxFormat.nSamplesPerSec);
LogMsg(TEXT("...AvgBytesPerSec=%u"), wfxFormat.nAvgBytesPerSec);
LogMsg(TEXT("...BlockAlign=%u"), wfxFormat.nBlockAlign);
LogMsg(TEXT("...BitsPerSample=%u"), wfxFormat.wBitsPerSample);
}
LogMsg(TEXT("...=%s"), Result(hr));
#endif
return hr;
}
}
}
}
#ifdef _DEBUG
LogMsg(TEXT("...=%s"), Result(hr));
#endif
return hr;
}
//===========================================================================
//
// IA3dX::SetOemResourceManagerMode
//
// Purpose: Set resource manager mode for OEM.
//
// Parameters:
// dwResManMode DWORD resource manager mode.
//
// Return: S_OK if successful, error otherwise.
//
//===========================================================================
STDMETHODIMP IA3dX::SetOemResourceManagerMode(DWORD dwResManMode)
{
#ifdef _DEBUG
LogMsg(TEXT("IA3dX::SetOemResourceManagerMode(%u)..."), dwResManMode);
_ASSERTE(m_pDS);
#endif
// Create KsPropertySet object.
HRESULT hr = (m_pKsPS) ? S_OK : CreateKsPropertySet();
if (SUCCEEDED(hr))
{
ULONG ulTypeSupport;
DWORD dwPropertyMode;
// Check arguments values.
switch (dwResManMode)
{