Added MesaLib-7.6

1 files changed, 817 insertions, 0 deletions

diff --git a/mesalib/src/mesa/drivers/windows/gldirect/dll_main.c b/mesalib/src/mesa/drivers/windows/gldirect/dll_main.c
new file mode 100644
index 000000000..1d7ac64f4
--- /dev/null
+++ b/mesalib/src/mesa/drivers/windows/gldirect/dll_main.c
@@ -0,0 +1,817 @@
+/****************************************************************************
+*
+*                        Mesa 3-D graphics library
+*                        Direct3D Driver Interface
+*
+*  ========================================================================
+*
+*   Copyright (C) 1991-2004 SciTech Software, Inc. All rights reserved.
+*
+*   Permission is hereby granted, free of charge, to any person obtaining a
+*   copy of this software and associated documentation files (the "Software"),
+*   to deal in the Software without restriction, including without limitation
+*   the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*   and/or sell copies of the Software, and to permit persons to whom the
+*   Software is furnished to do so, subject to the following conditions:
+*
+*   The above copyright notice and this permission notice shall be included
+*   in all copies or substantial portions of the Software.
+*
+*   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+*   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+*   SCITECH SOFTWARE INC BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+*   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+*   OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+*   SOFTWARE.
+*
+*  ======================================================================
+*
+* Language:     ANSI C
+* Environment:  Windows 9x (Win32)
+*
+* Description:  Win32 DllMain functions.
+*
+****************************************************************************/
+
+// INITGUID must only be defined once.
+// Don't put it in a shared header file!
+// GLD3 uses dxguid.lib, so INITGUID must *not* be used!
+#ifndef _USE_GLD3_WGL
+#define INITGUID
+#endif // _USE_GLD3_WGL
+
+#include "dllmain.h"
+
+//#include "snap/graphics.h"
+//#include "drvlib/os/os.h"
+
+#ifdef _USE_GLD3_WGL
+typedef void (APIENTRY *LPDGLSPLASHSCREEN)(int, int, char*);
+#include "gld_driver.h"
+#endif
+
+// ***********************************************************************
+
+BOOL bInitialized = FALSE;              // callback driver initialized?
+BOOL bExited = FALSE;                   // callback driver exited this instance?
+HINSTANCE hInstanceDll = NULL;          // DLL instance handle
+
+static BOOL bDriverValidated = FALSE;	// prior validation status
+static BOOL	bSplashScreen = TRUE;	    // Splash Screen ?
+static BOOL bValidINIFound = FALSE;     // Have we found a valid INI file?
+
+HHOOK 	hKeyHook = NULL;				// global keyboard handler hook
+
+// Multi-threaded support needs to be reflected in Mesa code. (DaveM)
+int _gld_bMultiThreaded = FALSE;
+
+// ***********************************************************************
+
+DWORD dwLogging = 0; 					// Logging flag
+DWORD dwDebugLevel = 0;                 // Log debug level
+
+char szLogPath[_MAX_PATH] = {"\0"};		// Log file path
+char szSNAPPath[_MAX_PATH] = {"\0"};	// SNAP driver path
+
+#ifndef _USE_GLD3_WGL
+DGL_wglFuncs wglFuncs = {
+	sizeof(DGL_wglFuncs),
+	DGL_ChoosePixelFormat,
+	DGL_CopyContext,
+	DGL_CreateContext,
+	DGL_CreateLayerContext,
+	DGL_DeleteContext,
+	DGL_DescribeLayerPlane,
+	DGL_DescribePixelFormat,
+	DGL_GetCurrentContext,
+	DGL_GetCurrentDC,
+	DGL_GetDefaultProcAddress,
+	DGL_GetLayerPaletteEntries,
+	DGL_GetPixelFormat,
+	DGL_GetProcAddress,
+	DGL_MakeCurrent,
+	DGL_RealizeLayerPalette,
+	DGL_SetLayerPaletteEntries,
+	DGL_SetPixelFormat,
+	DGL_ShareLists,
+	DGL_SwapBuffers,
+	DGL_SwapLayerBuffers,
+	DGL_UseFontBitmapsA,
+	DGL_UseFontBitmapsW,
+	DGL_UseFontOutlinesA,
+	DGL_UseFontOutlinesW,
+};
+
+DGL_mesaFuncs mesaFuncs = {
+	sizeof(DGL_mesaFuncs),
+};
+#endif // _USE_GLD3_WGL
+
+// ***********************************************************************
+
+typedef struct {
+	DWORD	dwDriver;			// 0=SciTech SW, 1=Direct3D SW, 2=Direct3D HW
+	BOOL	bMipmapping;		// 0=off, 1=on
+	BOOL	bMultitexture;		// 0=off, 1=on
+	BOOL	bWaitForRetrace;	// 0=off, 1=on
+	BOOL	bFullscreenBlit;	// 0=off, 1=on
+	BOOL	bFastFPU;			// 0=off, 1=on
+	BOOL	bDirectDrawPersistant;// 0=off, 1=on
+	BOOL	bPersistantBuffers; // 0=off, 1=on
+	DWORD	dwLogging;			// 0=off, 1=normal, 2=crash-proof
+	DWORD	dwLoggingSeverity;	// 0=all, 1=warnings+errors, 2=errors only
+	BOOL	bMessageBoxWarnings;// 0=off, 1=on
+	BOOL	bMultiThreaded;		// 0=off, 1=on
+	BOOL	bAppCustomizations;	// 0=off, 1=on
+	BOOL	bHotKeySupport;		// 0=off, 1=on
+	BOOL	bSplashScreen;		// 0=off, 1=on
+
+#ifdef _USE_GLD3_WGL
+	//
+	// New for GLDirect 3.0
+	//
+	DWORD	dwAdapter;			// DX8 adpater ordinal
+	DWORD	dwTnL;				// Transform & Lighting type
+	DWORD	dwMultisample;		// DX8 multisample type
+#endif // _USE_GLD3_WGL
+} INI_settings;
+
+static INI_settings ini;
+
+// ***********************************************************************
+
+BOOL APIENTRY DGL_initDriver(
+#ifdef _USE_GLD3_WGL
+	void)
+{
+#else
+	DGL_wglFuncs *lpWglFuncs,
+	DGL_mesaFuncs *lpMesaFuncs)
+{
+	// Check for valid pointers
+	if ((lpWglFuncs == NULL) || (lpMesaFuncs == NULL))
+		return FALSE;
+
+	// Check for valid structs
+	if (lpWglFuncs->dwSize != sizeof(DGL_wglFuncs)) {
+		return FALSE;
+	}
+
+	// Check for valid structs
+	if (lpMesaFuncs->dwSize != sizeof(DGL_mesaFuncs)) {
+		return FALSE;
+	}
+
+	// Copy the Mesa functions
+	memcpy(&mesaFuncs, lpMesaFuncs, sizeof(DGL_mesaFuncs));
+
+	// Pass back the wgl functions
+	memcpy(lpWglFuncs, &wglFuncs, sizeof(DGL_wglFuncs));
+#endif // _USE_GLD3_WGL
+
+    // Finally initialize the callback driver
+    if (!dglInitDriver())
+        return FALSE;
+
+	return TRUE;
+};
+
+// ***********************************************************************
+
+BOOL ReadINIFile(
+	HINSTANCE hInstance)
+{
+	char		szModuleFilename[MAX_PATH];
+	char		szSystemDirectory[MAX_PATH];
+	const char	szSectionName[] = "Config";
+	char		szINIFile[MAX_PATH];
+	int			pos;
+
+	// Now using the DLL module handle. KeithH, 24/May/2000.
+	// Addendum: GetModuleFileName(NULL, ...    returns process filename,
+	//           GetModuleFileName(hModule, ... returns DLL filename,
+
+	// Get the dll path and filename.
+	GetModuleFileName(hInstance, &szModuleFilename[0], MAX_PATH); // NULL for current process
+	// Get the System directory.
+	GetSystemDirectory(&szSystemDirectory[0], MAX_PATH);
+
+	// Test to see if DLL is in system directory.
+	if (strnicmp(szModuleFilename, szSystemDirectory, strlen(szSystemDirectory))==0) {
+		// DLL *is* in system directory.
+		// Return FALSE to indicate that registry keys should be read.
+		return FALSE;
+	}
+
+	// Compose filename of INI file
+	strcpy(szINIFile, szModuleFilename);
+	pos = strlen(szINIFile);
+	while (szINIFile[pos] != '\\') {
+		pos--;
+	}
+	szINIFile[pos+1] = '\0';
+    // Use run-time DLL path for log file too
+    strcpy(szLogPath, szINIFile);
+    szLogPath[pos] = '\0';
+    // Complete full INI file path
+	strcat(szINIFile, "gldirect.ini");
+
+	// Read settings from private INI file.
+	// Note that defaults are contained in the calls.
+	ini.dwDriver = GetPrivateProfileInt(szSectionName, "dwDriver", 2, szINIFile);
+	ini.bMipmapping = GetPrivateProfileInt(szSectionName, "bMipmapping", 1, szINIFile);
+	ini.bMultitexture = GetPrivateProfileInt(szSectionName, "bMultitexture", 1, szINIFile);
+	ini.bWaitForRetrace = GetPrivateProfileInt(szSectionName, "bWaitForRetrace", 0, szINIFile);
+	ini.bFullscreenBlit = GetPrivateProfileInt(szSectionName, "bFullscreenBlit", 0, szINIFile);
+	ini.bFastFPU = GetPrivateProfileInt(szSectionName, "bFastFPU", 1, szINIFile);
+	ini.bDirectDrawPersistant = GetPrivateProfileInt(szSectionName, "bPersistantDisplay", 0, szINIFile);
+	ini.bPersistantBuffers = GetPrivateProfileInt(szSectionName, "bPersistantResources", 0, szINIFile);
+	ini.dwLogging = GetPrivateProfileInt(szSectionName, "dwLogging", 0, szINIFile);
+	ini.dwLoggingSeverity = GetPrivateProfileInt(szSectionName, "dwLoggingSeverity", 0, szINIFile);
+	ini.bMessageBoxWarnings = GetPrivateProfileInt(szSectionName, "bMessageBoxWarnings", 0, szINIFile);
+	ini.bMultiThreaded = GetPrivateProfileInt(szSectionName, "bMultiThreaded", 0, szINIFile);
+	ini.bAppCustomizations = GetPrivateProfileInt(szSectionName, "bAppCustomizations", 1, szINIFile);
+	ini.bHotKeySupport = GetPrivateProfileInt(szSectionName, "bHotKeySupport", 0, szINIFile);
+	ini.bSplashScreen = GetPrivateProfileInt(szSectionName, "bSplashScreen", 1, szINIFile);
+
+#ifdef _USE_GLD3_WGL
+	// New for GLDirect 3.x
+	ini.dwAdapter		= GetPrivateProfileInt(szSectionName, "dwAdapter", 0, szINIFile);
+	// dwTnL now defaults to zero (chooses TnL at runtime). KeithH
+	ini.dwTnL			= GetPrivateProfileInt(szSectionName, "dwTnL", 0, szINIFile);
+	ini.dwMultisample	= GetPrivateProfileInt(szSectionName, "dwMultisample", 0, szINIFile);
+#endif
+
+	return TRUE;
+}
+
+// ***********************************************************************
+
+BOOL dllReadRegistry(
+	HINSTANCE hInstance)
+{
+	// Read settings from INI file, if available
+    bValidINIFound = FALSE;
+	if (ReadINIFile(hInstance)) {
+		const char *szRendering[3] = {
+			"SciTech Software Renderer",
+			"Direct3D MMX Software Renderer",
+			"Direct3D Hardware Renderer"
+		};
+		// Set globals
+		glb.bPrimary = 1;
+		glb.bHardware = (ini.dwDriver == 2) ? 1 : 0;
+#ifndef _USE_GLD3_WGL
+		memset(&glb.ddGuid, 0, sizeof(glb.ddGuid));
+		glb.d3dGuid = (ini.dwDriver == 2) ? IID_IDirect3DHALDevice : IID_IDirect3DRGBDevice;
+#endif // _USE_GLD3_WGL
+		strcpy(glb.szDDName, "Primary");
+		strcpy(glb.szD3DName, szRendering[ini.dwDriver]);
+		glb.dwRendering = ini.dwDriver;
+		glb.bUseMipmaps = ini.bMipmapping;
+		glb.bMultitexture = ini.bMultitexture;
+		glb.bWaitForRetrace = ini.bWaitForRetrace;
+		glb.bFullscreenBlit = ini.bFullscreenBlit;
+		glb.bFastFPU = ini.bFastFPU;
+		glb.bDirectDrawPersistant = ini.bDirectDrawPersistant;
+		glb.bPersistantBuffers = ini.bPersistantBuffers;
+		dwLogging = ini.dwLogging;
+		dwDebugLevel = ini.dwLoggingSeverity;
+		glb.bMessageBoxWarnings = ini.bMessageBoxWarnings;
+		glb.bMultiThreaded = ini.bMultiThreaded;
+		glb.bAppCustomizations = ini.bAppCustomizations;
+        glb.bHotKeySupport = ini.bHotKeySupport;
+		bSplashScreen = ini.bSplashScreen;
+#ifdef _USE_GLD3_WGL
+		// New for GLDirect 3.x
+		glb.dwAdapter		= ini.dwAdapter;
+		glb.dwDriver		= ini.dwDriver;
+		glb.dwTnL			= ini.dwTnL;
+		glb.dwMultisample	= ini.dwMultisample;
+#endif
+        bValidINIFound = TRUE;
+		return TRUE;
+	}
+	// Read settings from registry
+	else {
+	HKEY	hReg;
+	DWORD	cbValSize;
+	DWORD	dwType = REG_SZ; // Registry data type for strings
+	BOOL	bRegistryError;
+	BOOL	bSuccess;
+
+#define REG_READ_DWORD(a, b)							\
+	cbValSize = sizeof(b);								\
+	if (ERROR_SUCCESS != RegQueryValueEx( hReg, (a),	\
+		NULL, NULL, (LPBYTE)&(b), &cbValSize ))			\
+		bRegistryError = TRUE;
+
+#define REG_READ_DEVICEID(a, b)									\
+	cbValSize = MAX_DDDEVICEID_STRING;							\
+	if(ERROR_SUCCESS != RegQueryValueEx(hReg, (a), 0, &dwType,	\
+					(LPBYTE)&(b), &cbValSize))					\
+		bRegistryError = TRUE;
+
+#define REG_READ_STRING(a, b)									\
+	cbValSize = sizeof((b));									\
+	if(ERROR_SUCCESS != RegQueryValueEx(hReg, (a), 0, &dwType,	\
+					(LPBYTE)&(b), &cbValSize))					\
+		bRegistryError = TRUE;
+
+	// Read settings from the registry.
+
+	// Open the registry key for the current user if it exists.
+	bSuccess = (ERROR_SUCCESS == RegOpenKeyEx(HKEY_CURRENT_USER,
+									  DIRECTGL_REG_SETTINGS_KEY,
+									  0,
+									  KEY_READ,
+									  &hReg));
+    // Otherwise open the registry key for the local machine.
+    if (!bSuccess)
+        bSuccess = (ERROR_SUCCESS == RegOpenKeyEx(DIRECTGL_REG_KEY_ROOT,
+									  DIRECTGL_REG_SETTINGS_KEY,
+									  0,
+									  KEY_READ,
+									  &hReg));
+    if (!bSuccess)
+        return FALSE;
+
+	bRegistryError = FALSE;
+
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_PRIMARY, glb.bPrimary);
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_D3D_HW, glb.bHardware);
+#ifndef _USE_GLD3_WGL
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_DD_GUID, glb.ddGuid);
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_D3D_GUID, glb.d3dGuid);
+#endif // _USE_GLD3_WGL
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_LOGGING, dwLogging);
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_DEBUGLEVEL, dwDebugLevel);
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_RENDERING, glb.dwRendering);
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_MULTITEXTURE, glb.bMultitexture);
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_WAITFORRETRACE, glb.bWaitForRetrace);
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_FULLSCREENBLIT, glb.bFullscreenBlit);
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_USEMIPMAPS, glb.bUseMipmaps);
+
+	REG_READ_DEVICEID(DIRECTGL_REG_SETTING_DD_NAME, glb.szDDName);
+	REG_READ_DEVICEID(DIRECTGL_REG_SETTING_D3D_NAME, glb.szD3DName);
+
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_MSGBOXWARNINGS, glb.bMessageBoxWarnings);
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_PERSISTDISPLAY, glb.bDirectDrawPersistant);
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_PERSISTBUFFERS, glb.bPersistantBuffers);
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_FASTFPU, glb.bFastFPU);
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_HOTKEYS, glb.bHotKeySupport);
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_MULTITHREAD, glb.bMultiThreaded);
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_APPCUSTOM, glb.bAppCustomizations);
+    REG_READ_DWORD(DIRECTGL_REG_SETTING_SPLASHSCREEN, bSplashScreen);
+
+#ifdef _USE_GLD3_WGL
+	// New for GLDirect 3.x
+	glb.dwDriver = glb.dwRendering;
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_ADAPTER, glb.dwAdapter);
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_TNL, glb.dwTnL);
+	REG_READ_DWORD(DIRECTGL_REG_SETTING_MULTISAMPLE, glb.dwMultisample);
+#endif
+
+	RegCloseKey(hReg);
+
+	// Open the global registry key for GLDirect
+	bSuccess = (ERROR_SUCCESS == RegOpenKeyEx(HKEY_LOCAL_MACHINE,
+									  DIRECTGL_REG_SETTINGS_KEY,
+									  0,
+									  KEY_READ,
+									  &hReg));
+    if (bSuccess) {
+	    // Read the installation path for GLDirect
+	    REG_READ_STRING("InstallLocation",szLogPath);
+	    RegCloseKey(hReg);
+        }
+
+	if (bRegistryError || !bSuccess)
+		return FALSE;
+	else
+		
+		return TRUE;
+
+#undef REG_READ_DWORD
+#undef REG_READ_DEVICEID
+#undef REG_READ_STRING
+	}
+}
+
+// ***********************************************************************
+
+BOOL dllWriteRegistry(
+	void )
+{
+	HKEY 	hReg;
+	DWORD 	dwCreateDisposition, cbValSize;
+	BOOL 	bRegistryError = FALSE;
+
+#define REG_WRITE_DWORD(a, b)							\
+	cbValSize = sizeof(b);								\
+	if (ERROR_SUCCESS != RegSetValueEx( hReg, (a),		\
+		0, REG_DWORD, (LPBYTE)&(b), cbValSize ))		\
+		bRegistryError = TRUE;
+
+	if (ERROR_SUCCESS == RegCreateKeyEx( DIRECTGL_REG_KEY_ROOT, DIRECTGL_REG_SETTINGS_KEY,
+										0, NULL, 0, KEY_WRITE, NULL, &hReg,
+										&dwCreateDisposition )) {
+		RegFlushKey(hReg); // Make sure keys are written to disk
+		RegCloseKey(hReg);
+		hReg = NULL;
+		}
+
+	if (bRegistryError)
+		return FALSE;
+	else
+		return TRUE;
+
+#undef REG_WRITE_DWORD
+}
+
+// ***********************************************************************
+
+void dglInitHotKeys(HINSTANCE hInstance)
+{
+	// Hot-Key support at all?
+	if (!glb.bHotKeySupport)
+		return;
+
+	// Install global keyboard interceptor
+	hKeyHook = SetWindowsHookEx(WH_KEYBOARD, dglKeyProc, hInstance, 0);
+}
+
+// ***********************************************************************
+
+void dglExitHotKeys(void)
+{
+	// Hot-Key support at all?
+	if (!glb.bHotKeySupport)
+		return;
+
+	// Remove global keyboard interceptor
+	if (hKeyHook)
+		UnhookWindowsHookEx(hKeyHook);
+	hKeyHook = NULL;
+}
+
+// ***********************************************************************
+
+// Note: This app-customization step must be performed in both the main
+// OpenGL32 driver and the callback driver DLLs for multithreading option.
+void dglSetAppCustomizations(void)
+{
+	char		szModuleFileName[MAX_PATH];
+	int			iSize = MAX_PATH;
+
+	// Get the currently loaded EXE filename.
+	GetModuleFileName(NULL, &szModuleFileName[0], MAX_PATH); // NULL for current process
+	strupr(szModuleFileName);
+	iSize = strlen(szModuleFileName);
+
+	// Check for specific EXEs and adjust global settings accordingly
+
+	// NOTE: In GLD3.x "bDirectDrawPersistant" corresponds to IDirect3D8 and
+	//       "bPersistantBuffers" corresponds to IDirect3DDevice8. KeithH
+
+	// Case 1: 3DStudio must be multi-threaded
+	// Added: Discreet GMAX (3DStudio MAX 4 for gamers. KeithH)
+	if (strstr(szModuleFileName, "3DSMAX.EXE")
+		|| strstr(szModuleFileName, "3DSVIZ.EXE")
+		|| strstr(szModuleFileName, "GMAX.EXE")) {
+		glb.bMultiThreaded = TRUE;
+		glb.bDirectDrawPersistant = FALSE;
+		glb.bPersistantBuffers = FALSE;
+		return;
+	}
+
+	// Case 2: Solid Edge must use pre-allocated resources for all GLRCs
+	if (strstr(szModuleFileName, "PART.EXE")
+		|| strstr(szModuleFileName, "ASSEMBL.EXE")
+		|| strstr(szModuleFileName, "DRAFT.EXE")
+		|| strstr(szModuleFileName, "SMARTVW.EXE")
+		|| strstr(szModuleFileName, "SMETAL.EXE")) {
+		glb.bMultiThreaded = FALSE;
+		glb.bDirectDrawPersistant = TRUE;
+		glb.bPersistantBuffers = FALSE;
+		return;
+	}
+
+	// Case 3: Sudden Depth creates and destroys GLRCs on paint commands
+	if (strstr(szModuleFileName, "SUDDEPTH.EXE")
+		|| strstr(szModuleFileName, "SUDDEMO.EXE")) {
+		glb.bMultiThreaded = FALSE;
+		glb.bDirectDrawPersistant = TRUE;
+		glb.bPersistantBuffers = TRUE;
+		glb.bFullscreenBlit = TRUE;
+		return;
+	}
+
+	// Case 4: StereoGraphics test apps create and destroy GLRCs on paint commands
+	if (strstr(szModuleFileName, "REDBLUE.EXE")
+		|| strstr(szModuleFileName, "DIAGNOSE.EXE")) {
+		glb.bMultiThreaded = FALSE;
+		glb.bDirectDrawPersistant = TRUE;
+		glb.bPersistantBuffers = TRUE;
+		return;
+	}
+
+	// Case 5: Pipes screen savers share multiple GLRCs for same window
+	if (strstr(szModuleFileName, "PIPES.SCR")
+		|| (strstr(szModuleFileName, "PIPES") && strstr(szModuleFileName, ".SCR"))) {
+		glb.bMultiThreaded = FALSE;
+		glb.bDirectDrawPersistant = TRUE;
+		glb.bPersistantBuffers = TRUE;
+		return;
+	}
+
+	// Case 6: AutoVue uses sub-viewport ops which are temporarily broken in stereo window
+	if (strstr(szModuleFileName, "AVWIN.EXE")) {
+		glb.bMultiThreaded = FALSE;
+		glb.bDirectDrawPersistant = TRUE;
+		glb.bPersistantBuffers = TRUE;
+		return;
+	}
+	// Case 7: Quake3 is waiting for DDraw objects to be released at exit
+	if (strstr(szModuleFileName, "QUAKE")) {
+		glb.bMultiThreaded = FALSE;
+		glb.bDirectDrawPersistant = FALSE;
+		glb.bPersistantBuffers = FALSE;
+        glb.bFullscreenBlit = FALSE;
+		return;
+	}
+	// Case 8: Reflection GLX server is unable to switch contexts at run-time
+	if (strstr(szModuleFileName, "RX.EXE")) {
+		glb.bMultiThreaded = FALSE;
+        glb.bMessageBoxWarnings = FALSE;
+		return;
+	}
+	// Case 9: Original AutoCAD 2000 must share DDraw objects across GLRCs
+	if (strstr(szModuleFileName, "ACAD.EXE")) {
+		glb.bFastFPU = FALSE;
+        if (GetModuleHandle("wopengl6.hdi") != NULL) {
+		glb.bMultiThreaded = FALSE;
+		glb.bDirectDrawPersistant = TRUE;
+		glb.bPersistantBuffers = FALSE;
+		}
+		return;
+	}
+}
+
+// ***********************************************************************
+
+BOOL dglInitDriver(void)
+{
+	UCHAR szExeName[MAX_PATH];
+	const char *szRendering[] = {
+		"Mesa Software",
+		"Direct3D RGB SW",
+		"Direct3D HW",
+	};
+    static BOOL bWarnOnce = FALSE;
+
+    // Already initialized?
+    if (bInitialized)
+        return TRUE;
+
+    // Moved from DllMain DLL_PROCESS_ATTACH:
+
+		// (Re-)Init defaults
+		dglInitGlobals();
+
+		// Read registry or INI file settings
+		if (!dllReadRegistry(hInstanceDll)) {
+            if (!bWarnOnce)
+			    MessageBox( NULL, "GLDirect has not been configured.\n\n"
+							  "Please run the configuration program\n"
+                              "before using GLDirect with applications.\n",
+							  "GLDirect", MB_OK | MB_ICONWARNING);
+            bWarnOnce = TRUE;
+            return FALSE;
+		}
+
+#ifdef _USE_GLD3_WGL
+		// Must do this as early as possible.
+		// Need to read regkeys/ini-file first though.
+		gldInitDriverPointers(glb.dwDriver);
+
+		// Create private driver globals
+		_gldDriver.CreatePrivateGlobals();
+#endif
+		// Overide settings with application customizations
+		if (glb.bAppCustomizations)
+			dglSetAppCustomizations();
+
+//#ifndef _USE_GLD3_WGL
+		// Set the global memory type to either sysmem or vidmem
+		glb.dwMemoryType = glb.bHardware ? DDSCAPS_VIDEOMEMORY : DDSCAPS_SYSTEMMEMORY;
+//#endif
+
+		// Multi-threaded support overides persistant display support
+		if (glb.bMultiThreaded)
+			glb.bDirectDrawPersistant = glb.bPersistantBuffers = FALSE;
+
+        // Multi-threaded support needs to be reflected in Mesa code. (DaveM)
+        _gld_bMultiThreaded = glb.bMultiThreaded;
+
+		// Start logging
+        ddlogPathOption(szLogPath);
+		ddlogWarnOption(glb.bMessageBoxWarnings);
+		ddlogOpen((DDLOG_loggingMethodType)dwLogging,
+				  (DDLOG_severityType)dwDebugLevel);
+
+		// Obtain the name of the calling app
+		ddlogMessage(DDLOG_SYSTEM, "Driver           : SciTech GLDirect 4.0\n");
+		GetModuleFileName(NULL, szExeName, sizeof(szExeName));
+		ddlogPrintf(DDLOG_SYSTEM, "Executable       : %s", szExeName);
+
+		ddlogPrintf(DDLOG_SYSTEM, "DirectDraw device: %s", glb.szDDName);
+		ddlogPrintf(DDLOG_SYSTEM, "Direct3D driver  : %s", glb.szD3DName);
+
+		ddlogPrintf(DDLOG_SYSTEM, "Rendering type   : %s", szRendering[glb.dwRendering]);
+
+		ddlogPrintf(DDLOG_SYSTEM, "Multithreaded    : %s", glb.bMultiThreaded ? "Enabled" : "Disabled");
+		ddlogPrintf(DDLOG_SYSTEM, "Display resources: %s", glb.bDirectDrawPersistant ? "Persistant" : "Instanced");
+		ddlogPrintf(DDLOG_SYSTEM, "Buffer resources : %s", glb.bPersistantBuffers ? "Persistant" : "Instanced");
+
+		dglInitContextState();
+		dglBuildPixelFormatList();
+		//dglBuildTextureFormatList();
+
+    // D3D callback driver is now successfully initialized
+    bInitialized = TRUE;
+    // D3D callback driver is now ready to be exited
+    bExited = FALSE;
+
+    return TRUE;
+}
+
+// ***********************************************************************
+
+void dglExitDriver(void)
+{
+
+	// Only need to clean up once per instance:
+	// May be called implicitly from DLL_PROCESS_DETACH,
+	// or explicitly from DGL_exitDriver().
+	if (bExited)
+		return;
+	bExited = TRUE;
+
+    // DDraw objects may be invalid when DLL unloads.
+__try {
+
+	// Clean-up sequence (moved from DLL_PROCESS_DETACH)
+#ifndef _USE_GLD3_WGL
+	dglReleaseTextureFormatList();
+#endif
+	dglReleasePixelFormatList();
+	dglDeleteContextState();
+
+#ifdef _USE_GLD3_WGL
+	_gldDriver.DestroyPrivateGlobals();
+#endif
+
+}
+__except(EXCEPTION_EXECUTE_HANDLER) {
+	    ddlogPrintf(DDLOG_WARN, "Exception raised in dglExitDriver.");
+}
+
+	// Close the log file
+	ddlogClose();
+}
+
+// ***********************************************************************
+
+int WINAPI DllMain(
+	HINSTANCE hInstance,
+	DWORD fdwReason,
+	PVOID pvReserved)
+{
+	switch (fdwReason) {
+	case DLL_PROCESS_ATTACH:
+        // Cache DLL instance handle
+        hInstanceDll = hInstance;
+
+        // Flag that callback driver has yet to be initialized
+        bInitialized = bExited = FALSE;
+
+#ifndef _USE_GLD3_WGL
+        // Init internal Mesa function pointers
+		memset(&mesaFuncs, 0, sizeof(DGL_mesaFuncs));
+#endif // _USE_GLD3_WGL
+
+		// Init defaults
+		dglInitGlobals();
+
+        // Defer rest of DLL initialization to 1st WGL function call
+		break;
+
+	case DLL_PROCESS_DETACH:
+		// Call exit clean-up sequence
+		dglExitDriver();
+		break;
+	}
+
+	return TRUE;
+}
+
+// ***********************************************************************
+
+void APIENTRY DGL_exitDriver(void)
+{
+	// Call exit clean-up sequence
+	dglExitDriver();
+}
+
+// ***********************************************************************
+
+void APIENTRY DGL_reinitDriver(void)
+{
+	// Force init sequence again
+    bInitialized = bExited = FALSE;
+	dglInitDriver();
+}
+
+// ***********************************************************************
+
+int WINAPI DllInitialize(
+	HINSTANCE hInstance,
+	DWORD fdwReason,
+	PVOID pvReserved)
+{
+	// Some Watcom compiled executables require this.
+	return DllMain(hInstance, fdwReason, pvReserved);
+}
+
+// ***********************************************************************
+
+void DGL_LoadSplashScreen(int piReg, char* pszUser)
+{
+	HINSTANCE			hSplashDll = NULL;
+	LPDGLSPLASHSCREEN 	dglSplashScreen = NULL;
+	static BOOL 		bOnce = FALSE;
+    static int          iReg = 0;
+    static char         szUser[255] = {"\0"};
+
+    // Display splash screen at all?
+    if (!bSplashScreen)
+        return;
+
+	// Only display splash screen once
+	if (bOnce)
+		return;
+	bOnce = TRUE;
+
+    // Make local copy of string for passing to DLL
+    if (pszUser)
+        strcpy(szUser, pszUser);
+    iReg = piReg;
+
+	// Load Splash Screen DLL
+	// (If it fails to load for any reason, we don't care...)
+	hSplashDll = LoadLibrary("gldsplash.dll");
+	if (hSplashDll) {
+		// Execute the Splash Screen function
+		dglSplashScreen = (LPDGLSPLASHSCREEN)GetProcAddress(hSplashDll, "GLDSplashScreen");
+		if (dglSplashScreen)
+			(*dglSplashScreen)(1, iReg, szUser);
+		// Don't unload the DLL since splash screen dialog is modeless now
+		}
+}
+
+// ***********************************************************************
+
+BOOL dglValidate()
+{
+	char *szCaption = "SciTech GLDirect Driver";
+	UINT uType = MB_OK | MB_ICONEXCLAMATION;
+
+#ifdef _USE_GLD3_WGL
+	// (Re)build pixelformat list
+	if (glb.bPixelformatsDirty)
+		_gldDriver.BuildPixelformatList();
+#endif
+
+	// Check to see if we have already validated
+	if (bDriverValidated && bInitialized)
+		return TRUE;
+
+    // Since all (most) the WGL functions must be validated at this point,
+    // this also insure that the callback driver is completely initialized.
+    if (!bInitialized)
+        if (!dglInitDriver()) {
+			MessageBox(NULL,
+				"The GLDirect driver could not initialize.\n\n"
+				"Please run the configuration program to\n"
+				"properly configure the driver, or else\n"
+                "re-run the installation program.", szCaption, uType);
+			_exit(1); // Bail
+        }
+
+    return TRUE;
+}
+
+// ***********************************************************************
+