Issue number: 4, 28, 71 and 76

Windows OpenGL only : This fix will use hardware Pbuffer for offScreenBuffer rendering if the graphics hardware support it, else BitMap is use as a fallback.

1) Fixed issue 4 - Speed of OffScreen Canvas3D
2) Fixed issue 28 - Combine Mode & Missing Texture in OffScreen snapshot on Win/XP
3) Fixed issue 71 - OGL: OffScreen canvas ignore GraphicsConfigTemplate under windows.
4) Fixed issue 76 - OffScreen rendering should use Pbuffer on Windows / OpenGL
5) Cleanup native ChoosePixelFormat code.


git-svn-id: https://svn.java.net/svn/j3d-core~svn/trunk@56 ba19aa83-45c5-6ac9-afd3-db810772062c

11 files changed, 1805 insertions, 688 deletions

diff --git a/src/classes/share/javax/media/j3d/Canvas3D.java b/src/classes/share/javax/media/j3d/Canvas3D.java
index eb979e6..50ee073 100644
--- a/src/classes/share/javax/media/j3d/Canvas3D.java
+++ b/src/classes/share/javax/media/j3d/Canvas3D.java
@@ -559,13 +559,27 @@ public class Canvas3D extends Canvas {
     // the visual id.
     int vid = 0;
 
-    // Fix for issue 20.
+
+    // fbConfig is a pointer to the fbConfig object that is associated with 
+    // the GraphicsConfiguration object used to create this Canvas.
+    //
+    // For Unix : Fix for issue 20.
     // The fbConfig is only used when running X11.  It contains a pointer
     // to the native GLXFBConfig structure list, since in some cases the visual id
     // alone isn't sufficient for the native OpenGL renderer (e.g., when using
     // Solaris OpenGL with Xinerama mode disabled).
+    //
+    // For Windows : Fix for issue 76.  This is use as a holder of the
+    // PixelFormat structure ( see also gldef.h ) to allow value such
+    // as offScreen's pixelformat, and ARB function pointers to be stored.
     long fbConfig = 0;  
 
+    // offScreenBufferInfo is a pointer to additional information about the
+    // offScreenBuffer in this Canvas.
+    //
+    // For Windows : Fix for issue 76.
+    long offScreenBufferInfo = 0;
+
     // fbConfigTable is a static hashtable which allows getBestConfiguration()
     // in NativeConfigTemplate3D to map a GraphicsConfiguration to the pointer
     // to the actual GLXFBConfig that glXChooseFBConfig() returns.  The Canvas3D
@@ -812,7 +826,7 @@ public class Canvas3D extends Canvas {
     native static void destroyContext(long display, int window, long context);
 
     // This is the native for creating offscreen buffer
-    native int createOffScreenBuffer(long ctx, long display, int window, long fbConfig, int width, int height);
+    native int createOffScreenBuffer(long ctx, long display, int vid, long fbConfig, int width, int height);
 
     native void destroyOffScreenBuffer(long ctx, long display, long fbConfig, int window);
 
@@ -1117,7 +1131,7 @@ public class Canvas3D extends Canvas {
 	this.offScreen = offScreen;
 	this.graphicsConfiguration = graphicsConfiguration;
 
-	// Needed for  Win32 only.
+	// Needed for Win32 only.
 	vid = nativeWSobj.getCanvasVid(graphicsConfiguration);
 
 	// Fix for issue 20.
@@ -1127,15 +1141,16 @@ public class Canvas3D extends Canvas {
 	if ((fbConfigObject != null) && 
 	    (fbConfigObject instanceof Long)) {
 	    fbConfig = ((Long)fbConfigObject).longValue();
-	    // System.out.println("Canvas3D creation FBConfig = " + fbConfig);
-
+	    /* System.out.println("Canvas3D creation FBConfig = " + fbConfig + 
+	       " offScreen is " + offScreen );
+	    */
+	    // This check is needed for Unix and Win-ogl only. fbConfig should 
+	    // remain as -1, default value, for D3D case. 
 	    if (fbConfig == 0) {	    
 		throw new IllegalArgumentException
 		    (J3dI18N.getString("Canvas3D23"));
 	    }
 	}
-	
-
 
 	if (offScreen) {
 	    screen = new Screen3D(graphicsConfiguration, offScreen);
@@ -3388,7 +3403,7 @@ public class Canvas3D extends Canvas {
 	// inside the native code after setting the various 
 	// fields in this object
 	createQueryContext(screen.display, window, vid,
-			   fbConfig, offScreen, 10, 10);
+			   fbConfig, offScreen, 1, 1);
     }
 
     /**
diff --git a/src/classes/share/javax/media/j3d/Renderer.java b/src/classes/share/javax/media/j3d/Renderer.java
index 12b4dce..cd47249 100644
--- a/src/classes/share/javax/media/j3d/Renderer.java
+++ b/src/classes/share/javax/media/j3d/Renderer.java
@@ -450,7 +450,7 @@ class Renderer extends J3dThread {
 		    canvas.window = 
 			canvas.createOffScreenBuffer(canvas.ctx, 
 						     canvas.screen.display,
-						     canvas.window,
+						     canvas.vid,
 						     canvas.fbConfig,
 						     canvas.offScreenCanvasSize.width, 
 						     canvas.offScreenCanvasSize.height);
diff --git a/src/classes/win32/javax/media/j3d/NativeConfigTemplate3D.java b/src/classes/win32/javax/media/j3d/NativeConfigTemplate3D.java
index 997aaee..2759ea5 100644
--- a/src/classes/win32/javax/media/j3d/NativeConfigTemplate3D.java
+++ b/src/classes/win32/javax/media/j3d/NativeConfigTemplate3D.java
@@ -19,6 +19,7 @@ import sun.awt.Win32GraphicsConfig;
 import java.awt.GraphicsConfigTemplate;
 
 class NativeConfigTemplate3D {
+    private final static boolean debug = false;
 
     NativeConfigTemplate3D() {
 	VirtualUniverse.createMC();
@@ -40,7 +41,12 @@ class NativeConfigTemplate3D {
      * selects the proper visual
      */
     native int
-      choosePixelFormat(long ctx, int screen, int[] attrList);
+	choosePixelFormat(long ctx, int screen, int[] attrList, long[] pFormatInfo);
+
+    // Native method to free an PixelFormatInfo struct.  This is static since it
+    // may need to be called to clean up the Canvas3D fbConfigTable after the
+    // NativeConfigTemplate3D has been disposed of.
+    static native void freePixelFormatInfo(long pFormatInfo);
 
     // Native methods to return whether a particular attribute is available
     native boolean isStereoAvailable(long ctx, long display, int screen, int pixelFormat);
@@ -58,6 +64,17 @@ class NativeConfigTemplate3D {
         Win32GraphicsDevice gd =
             (Win32GraphicsDevice)((Win32GraphicsConfig)gc[0]).getDevice();
 
+	/*  Not ready to enforce ARB extension in J3D1.3.2, but will likely to 
+	    do so in J3D 1.4.
+	System.out.println("getBestConfiguration : Checking WGL ARB support\n");
+	
+	if (!NativeScreenInfo.isWglARB()) {
+	    Thread.dumpStack();
+	    System.out.println("getBestConfiguration : WGL ARB support fail\n");
+	    return null;
+	}
+	*/
+
 	// holds the list of attributes to be tramslated
 	//	    for glxChooseVisual call
 	int attrList[] = new int[NUM_ITEMS];
@@ -72,12 +89,40 @@ class NativeConfigTemplate3D {
 	attrList[ANTIALIASING] = template.getSceneAntialiasing();
 	NativeScreenInfo nativeScreenInfo = new NativeScreenInfo(gd);
 	int screen = nativeScreenInfo.getScreen();	
-	int pixelFormat = choosePixelFormat(0, screen, attrList);
-	if (pixelFormat  == -1) {
+
+	long[] pFormatInfo = new long[1];
+
+	/* Deliberately set this to -1. pFormatInfo is not use in 
+	   D3D, so this value will be unchange in the case of D3D.
+	   In the case of OGL, the return value should be 0 or a 
+	   positive valid address.
+	*/
+	pFormatInfo[0] = -1;
+
+	int pixelFormat = choosePixelFormat(0, screen, attrList, pFormatInfo);
+	if (debug) {
+	    System.out.println("  choosePixelFormat() returns " + pixelFormat);
+	    System.out.println("  pFormatInfo is " + pFormatInfo[0]);
+	    System.out.println();
+	}
+
+	if (pixelFormat  < 0) {
 	    // current mode don't support the minimum config
 	    return null;
 	}	    
-	return new J3dGraphicsConfig(gd, pixelFormat);
+
+	GraphicsConfiguration gc1 = new J3dGraphicsConfig(gd, pixelFormat);
+	// We need to cache the offScreen pixelformat that glXChoosePixelFormat()
+	// returns, since this is not cached with J3dGraphicsConfig and there
+	// are no public constructors to allow us to extend it.
+	synchronized (Canvas3D.fbConfigTable) {
+	    if (Canvas3D.fbConfigTable.get(gc1) == null)
+		Canvas3D.fbConfigTable.put(gc1, new Long(pFormatInfo[0]));
+	    else 
+		freePixelFormatInfo(pFormatInfo[0]);
+	}
+
+	return gc1;
     }
 
     /**
@@ -90,6 +135,17 @@ class NativeConfigTemplate3D {
         Win32GraphicsDevice gd =
             (Win32GraphicsDevice)((Win32GraphicsConfig) gc).getDevice();
 
+	/*  Not ready to enforce ARB extension in J3D1.3.2, but will likely to 
+	    do so in J3D 1.4.
+	System.out.println("isGraphicsConfigSupported : Checking WGL ARB support\n");
+
+	if (!NativeScreenInfo.isWglARB()) {
+	    Thread.dumpStack();
+	    System.out.println("isGraphicsConfigSupported : WGL ARB support fail\n");
+	    return false;
+	}
+	*/
+
 	// holds the list of attributes to be tramslated
 	//	    for glxChooseVisual call
 	int attrList[] = new int[NUM_ITEMS];
@@ -106,9 +162,16 @@ class NativeConfigTemplate3D {
 	NativeScreenInfo nativeScreenInfo = new NativeScreenInfo(gd);
 	int screen = nativeScreenInfo.getScreen();	
 
-	int pixelFormat = choosePixelFormat(0, screen, attrList);
+	long[] pFormatInfo = new long[1];
+
+	int pixelFormat = choosePixelFormat(0, screen, attrList, pFormatInfo);
+	if (debug) {
+	    System.out.println("  choosePixelFormat() returns " + pixelFormat);
+	    System.out.println("  pFormatInfo is " + pFormatInfo[0]);
+	    System.out.println();
+	}
 
-	if (pixelFormat  == -1) {
+	if (pixelFormat < 0) {
 	    // current mode don't support the minimum config
 	    return false;
 	} else return true;
diff --git a/src/classes/win32/javax/media/j3d/NativeScreenInfo.java b/src/classes/win32/javax/media/j3d/NativeScreenInfo.java
index 43ee7e5..ef539ec 100644
--- a/src/classes/win32/javax/media/j3d/NativeScreenInfo.java
+++ b/src/classes/win32/javax/media/j3d/NativeScreenInfo.java
@@ -19,6 +19,24 @@ class NativeScreenInfo {
     private int display = 0;
     private int screen = 0;
 
+
+    private static boolean wglARBChecked = false;
+    private static boolean isWglARB;
+
+    private native static boolean queryWglARB();
+
+    // This method will return true if wglGetExtensionsStringARB is supported, 
+    // else return false
+    synchronized static boolean isWglARB() {
+
+	if (!wglARBChecked) {
+	    // Query for wglGetExtensionsStringARB support.
+	    isWglARB = queryWglARB();
+	    wglARBChecked = true;
+	}
+	return isWglARB;
+    }
+
     NativeScreenInfo(GraphicsDevice graphicsDevice) {
 	// Get the screen number
 	screen = ((sun.awt.Win32GraphicsDevice)graphicsDevice).getScreen();
diff --git a/src/native/d3d/NativeConfigTemplate3D.cpp b/src/native/d3d/NativeConfigTemplate3D.cpp
index e29f018..5238ad6 100644
--- a/src/native/d3d/NativeConfigTemplate3D.cpp
+++ b/src/native/d3d/NativeConfigTemplate3D.cpp
@@ -87,7 +87,8 @@ jint JNICALL Java_javax_media_j3d_NativeConfigTemplate3D_choosePixelFormat(
     jobject   obj,
     jlong ctx,
     jint screen,
-    jintArray attrList)
+    jintArray attrList,
+    jlongArray offScreenPFArray)
 {
     int depth, red, green, blue;
     int retValue = -1;
diff --git a/src/native/ogl/Canvas3D.c b/src/native/ogl/Canvas3D.c
index ab8f1db..4ce2b9f 100644
--- a/src/native/ogl/Canvas3D.c
+++ b/src/native/ogl/Canvas3D.c
@@ -63,7 +63,10 @@ int getTextureColorTableSize(
 
 
 #ifdef WIN32
-  extern HDC getMonitorDC(int screen);
+extern void printErrorMessage(char *message);
+extern PIXELFORMATDESCRIPTOR getDummyPFD();
+extern HDC getMonitorDC(int screen);
+HWND createDummyWindow(const char* szAppName);
 #endif
 
 /*
@@ -422,7 +425,6 @@ BOOL getPropertiesFromCurrentContext(
     GraphicsContextPropertiesInfo *ctxInfo,
     jlong hdc,
     int pixelFormat,
-    long display,
     int stencilSize)
 {
     JNIEnv table = *env; 
@@ -672,7 +674,7 @@ BOOL getPropertiesFromCurrentContext(
     }
 #endif
 
-#ifdef WIN32
+#ifdef WIN32  /* This is fine, but might need cleanup. -- Chien */
     wglGetPixelFormatAttribivEXT = (PFNWGLGETPIXELFORMATATTRIBIVEXTPROC)
 	wglGetProcAddress("wglGetPixelFormatAttribivARB");
 
@@ -1052,7 +1054,7 @@ void JNICALL Java_javax_media_j3d_Canvas3D_destroyContext(
     
 #if defined(SOLARIS) || defined(__linux__)
     /*
-    glXMakeCurrent((Display *)display, (GLXDrawable)window, NULL);
+    glXMakeCurrent((Display *)display, None, NULL);
     */
     glXDestroyContext((Display *)display, (GLXContext)context);
 #endif /* SOLARIS */
@@ -1178,69 +1180,56 @@ jlong JNICALL Java_javax_media_j3d_Canvas3D_createNewContext(
     jboolean rescale = JNI_FALSE;
     JNIEnv table = *env;
     DWORD err;
-    LPTSTR errString;
-
-       
-    static PIXELFORMATDESCRIPTOR pfd = {
-	sizeof(PIXELFORMATDESCRIPTOR),
-	1,                      /* Version number */
-	PFD_DRAW_TO_WINDOW |
-	PFD_SUPPORT_OPENGL|
-	PFD_DOUBLEBUFFER,
-	PFD_TYPE_RGBA,
-	24,                     /* 24 bit color depth */
-	0, 0, 0,                /* RGB bits and pixel sizes */
-	0, 0, 0,                /* Do not care about them */
-	0, 0,                   /* no alpha buffer info */
-	0, 0, 0, 0, 0,          /* no accumulation buffer */
-	32,                     /* 16 bit depth buffer */
-	0,                      /* no stencil buffer */
-	0,                      /* no auxiliary buffers */
-	PFD_MAIN_PLANE,         /* layer type */
-	0,                      /* reserved, must be 0 */
-	0,                      /* no layer mask */
-	0,                      /* no visible mask */
-	0                       /* no damage mask */
-    };
-
+    LPTSTR errString;    
     jboolean result;
+    
+    /* Fix for issue 76 */
 
-    /* hWnd = (HWND) window; */
-    /* or could use: hDC = GetDC(hWnd); */
     
+    /*
+      fprintf(stderr, "Canvas3D_createNewContext: \n");
+      fprintf(stderr, "vid %d window 0x%x\n", vid, window);
+    */
     if(sharedCtxInfo == 0)
 	sharedCtx = 0;
     else {
 	sharedCtxStructure = (GraphicsContextPropertiesInfo *)sharedCtxInfo;
 	sharedCtx = sharedCtxStructure->context;
     }
-
     
     hdc =  (HDC) window;
-    
-    if (offScreen)  {
-	pfd.dwFlags = PFD_DRAW_TO_BITMAP | PFD_SUPPORT_OPENGL |
-	    PFD_SUPPORT_GDI;
-	vid = -1;
-	sharedCtx = 0;
-    }
 
-    /* vid of -1 means no vid was specified - do the old way */
-    if (vid == -1) {
-	/* choose the "pixel format", terminology is equivalent */
-	/* to UNIX "visual" */
-	PixelFormatID = ChoosePixelFormat(hdc, &pfd);
+    /* Need to handle onScreen and offScreen differently */
+    /* vid is for onScreen and fbConfigListPtr is for offScreen */ 
+    /*
+     * vid must be a PixelFormat returned
+     * by wglChoosePixelFormat() or wglChoosePixelFormatARB.
+     */
 
-	if(PixelFormatID == 0) {
-	    fprintf(stderr,"\nERROR: pixel format ID = 0");
+    if(!offScreen) {
+	/* fprintf(stderr, "Canvas3D_createNewContext: onScreen PixelFormat is %d\n", vid); */
+
+	if (vid <= 0) {
+	    printErrorMessage("Canvas3D_createNewContext: onScreen PixelFormat is invalid");
 	    return 0;
 	}
+	else {
+	    PixelFormatID = vid;	
+	}
     }
-    else {
-	PixelFormatID = vid;
+    else { /* offScreen case */
+	PixelFormatInfo *PixelFormatInfoPtr = (PixelFormatInfo *)fbConfigListPtr;
+	    
+	if ((PixelFormatInfoPtr == NULL) || (PixelFormatInfoPtr->offScreenPFormat <= 0)) {
+	    printErrorMessage("Canvas3D_createNewContext: offScreen PixelFormat is invalid");
+	    return 0;
+	}
+	else {
+	    PixelFormatID = PixelFormatInfoPtr->offScreenPFormat;
+	}
     }
-
-    SetPixelFormat(hdc, PixelFormatID, &pfd);
+    
+    SetPixelFormat(hdc, PixelFormatID, NULL);
 
     hrc = wglCreateContext( hdc );
 
@@ -1280,7 +1269,7 @@ jlong JNICALL Java_javax_media_j3d_Canvas3D_createNewContext(
     ctxInfo->context = gctx;
     
     if (!getPropertiesFromCurrentContext(env, obj, ctxInfo, (jlong) hdc, PixelFormatID,
-					 display, stencilSize)) {
+					 stencilSize)) {
 	return 0;
     }
 
@@ -2620,7 +2609,7 @@ jint JNICALL Java_javax_media_j3d_Canvas3D_createOffScreenBuffer(
     jobject obj,
     jlong ctxInfo,    
     jlong display,
-    jint window,
+    jint vid,
     jlong fbConfigListPtr,
     jint width,
     jint height)
@@ -2656,8 +2645,6 @@ jint JNICALL Java_javax_media_j3d_Canvas3D_createOffScreenBuffer(
    /* fprintf(stderr, "GLX_DRAWABLE_TYPE returns %d\n", val); */
    
    if ((val & GLX_PBUFFER_BIT) != 0) {
-
-
        /* fprintf(stderr, "Using pbuffer %d\n", val); */
        
        /* Initialize the attribute list to be used for choosing FBConfig */
@@ -2737,62 +2724,165 @@ jint JNICALL Java_javax_media_j3d_Canvas3D_createOffScreenBuffer(
    
 #endif /* SOLARIS */
 
-#ifdef WIN32
-    int PixelFormatID=0;
-    int dpy = (int)display;
-    HDC hdc;          /* HW Device Context */
-    jboolean rescale = JNI_FALSE;
+#ifdef WIN32   
+    /* Fix for issue 76 */
+   int dpy = (int)display;   
+    static char szAppName[] = "CreateOffScreen";
+    HWND hwnd;
+    HGLRC hrc;
+    HDC   hdc;
+    int pixelFormat;
+    PixelFormatInfo *pFormatInfoPtr = (PixelFormatInfo *)fbConfigListPtr;
+    int piAttrs[2];
+    
+    HPBUFFERARB hpbuf = NULL;  /* Handle to the Pbuffer */
+    HDC hpbufdc = NULL;        /* Handle to the Pbuffer's device context */
+
+    HDC bitmapHdc;
+    HBITMAP hbitmap;
+    
+    BITMAPINFOHEADER bih;
+    void *ppvBits;
+    int err;
+    LPTSTR errString;
+    OffScreenBufferInfo *offScreenBufferInfo = NULL; 
+    
+    PIXELFORMATDESCRIPTOR dummy_pfd = getDummyPFD();
+    jclass cv_class;
+    jfieldID offScreenBuffer_field;
     JNIEnv table = *env;
+
+    /*
+      fprintf(stderr, "****** CreateOffScreenBuffer ******\n");     
+      fprintf(stderr, "display 0x%x,  pFormat %d, width %d, height %d\n",
+      (int) display,  pFormatInfoPtr->offScreenPFormat, width, height);
+    */
+    cv_class =  (jclass) (*(table->GetObjectClass))(env, obj);
+    offScreenBuffer_field =
+	(jfieldID) (*(table->GetFieldID))(env, cv_class, "offScreenBufferInfo", "J");
     
-   HBITMAP hbitmap, oldhbitmap;
-
-   BITMAPINFOHEADER bih;
-   void *ppvBits;
-   int err;
-   LPTSTR errString;
-   HDC hdcMonitor;
-
-   /* create a DIB */
-   memset(&bih, 0, sizeof(BITMAPINFOHEADER));
-
-   bih.biSize = sizeof(BITMAPINFOHEADER);
-   bih.biWidth = width;
-   bih.biHeight = height;
-   bih.biPlanes = 1;
-   bih.biBitCount = 24;
-   bih.biCompression = BI_RGB;
-
-   /* create a new device context */
-
-   if (dpy == 0) {
-       hdc = CreateCompatibleDC(0);
-   } else {
-       /*
-	* Should be getMonitorDC(screen)
-        * but display and screen are the same under windows
-        * They are return from NativeScreenInfo
-	*/
-       hdcMonitor = getMonitorDC((int) display);       
-       hdc = CreateCompatibleDC(hdcMonitor);
-       DeleteDC(hdcMonitor);
-       
-   }
-   hbitmap = CreateDIBSection(hdc, (BITMAPINFO *)&bih,
-				DIB_PAL_COLORS, &ppvBits, NULL, 0);
+    /*
+     * Select any pixel format and bound current context to
+     * it so that we can get the wglChoosePixelFormatARB entry point.
+     * Otherwise wglxxx entry point will always return null.
+     * That's why we need to create a dummy window also.
+     */
+    hwnd = createDummyWindow((const char *)szAppName);
+    
+    if (!hwnd) {
+	return 0;
+    }
+    hdc = GetDC(hwnd);
+
+    pixelFormat = ChoosePixelFormat(hdc, &dummy_pfd);
+
+    if (pixelFormat<1) {
+	printErrorMessage("In Canvas3D : Failed in ChoosePixelFormat");
+	DestroyWindow(hwnd);
+	UnregisterClass(szAppName, (HINSTANCE)NULL);
+	return 0;
+    }
+
+    SetPixelFormat(hdc, pixelFormat, NULL);
+    
+    hrc = wglCreateContext(hdc);
+    if (!hrc) {
+	printErrorMessage("In Canvas3D : Failed in wglCreateContext");
+	DestroyWindow(hwnd);
+	UnregisterClass(szAppName, (HINSTANCE)NULL);
+	return 0;
+    }
+    
+    if (!wglMakeCurrent(hdc, hrc)) {
+	printErrorMessage("In Canvas3D : Failed in wglMakeCurrent");
+	ReleaseDC(hwnd, hdc);
+	wglDeleteContext(hrc);
+	DestroyWindow(hwnd);
+	UnregisterClass(szAppName, (HINSTANCE)NULL);
+	return 0;
+    }
+    
+    if (pFormatInfoPtr->supportPbuffer) {
+	
+	/* fprintf(stderr, "***** Use PBuffer for offscreen  ******\n"); */
+	
+	piAttrs[0] = 0;
+	piAttrs[1] = 0;
+		
+	hpbuf = pFormatInfoPtr->wglCreatePbufferARB( hdc, pFormatInfoPtr->offScreenPFormat,
+						     width, height, piAttrs);
+	    
+	if(hpbuf == NULL) {
+	    printErrorMessage("In Canvas3D : wglCreatePbufferARB FAIL.");
+	    return 0;
+	}
+	
+	hpbufdc = pFormatInfoPtr->wglGetPbufferDCARB(hpbuf);
+	
+	if(hpbufdc == NULL) {
+	    printErrorMessage("In Canvas3D : Can't get pbuffer's device context.");
+	    return 0;
+	}		
+	
+	/* Destroy all dummy objects */
+	ReleaseDC(hwnd, hdc);
+	wglDeleteContext(hrc);
+	DestroyWindow(hwnd);
+	UnregisterClass(szAppName, (HINSTANCE)NULL);
+	
+	offScreenBufferInfo  =
+	    (OffScreenBufferInfo *) malloc(sizeof(OffScreenBufferInfo));
+	offScreenBufferInfo->isPbuffer = GL_TRUE;
+	offScreenBufferInfo->hpbuf = hpbuf;
 
-   if (!hbitmap) {
+	(*(table->SetLongField))(env, obj, offScreenBuffer_field, (jlong)offScreenBufferInfo);
+
+	return (jint) hpbufdc;
+    }
+    
+    /* create a DIB */
+    memset(&bih, 0, sizeof(BITMAPINFOHEADER));
+    
+    bih.biSize = sizeof(BITMAPINFOHEADER);
+    bih.biWidth = width;
+    bih.biHeight = height;
+    bih.biPlanes = 1;
+    bih.biBitCount = 24;
+    bih.biCompression = BI_RGB;    
+    
+    bitmapHdc = CreateCompatibleDC(hdc);
+    
+    hbitmap = CreateDIBSection(bitmapHdc, (BITMAPINFO *)&bih,
+			       DIB_PAL_COLORS, &ppvBits, NULL, 0);
+    
+    
+    if (!hbitmap) {
 	err = GetLastError();
-        FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
-			FORMAT_MESSAGE_FROM_SYSTEM,
-			NULL, err, 0, (LPTSTR)&errString, 0, NULL);
+	FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
+		      FORMAT_MESSAGE_FROM_SYSTEM,
+		      NULL, err, 0, (LPTSTR)&errString, 0, NULL);
 	fprintf(stderr, "CreateDIBSection failed: %s\n", errString);
-   }
-
-   oldhbitmap = SelectObject(hdc, hbitmap);
+    }
+    
+    SelectObject(bitmapHdc, hbitmap);
+    
+    /* Choosing and setting of pixel format is done in createContext */    
+    
+    /* Destroy all dummy objects and fall BitMap  */    
+    ReleaseDC(hwnd, hdc);
+    wglDeleteContext(hrc);
+    DestroyWindow(hwnd);
+    UnregisterClass(szAppName, (HINSTANCE)NULL);
 
-   /* Choosing and setting of pixel format is done in createContext */
+    offScreenBufferInfo  =
+	(OffScreenBufferInfo *) malloc(sizeof(OffScreenBufferInfo));
+    offScreenBufferInfo->isPbuffer = GL_FALSE;
+    offScreenBufferInfo->hpbuf = 0;
+    
+    (*(table->SetLongField))(env, obj, offScreenBuffer_field, (jlong)offScreenBufferInfo);
 
-   return ((jint)hdc);
+    return ((jint)bitmapHdc);
+    
 #endif /* WIN32 */
 }
 
@@ -2805,6 +2895,10 @@ void JNICALL Java_javax_media_j3d_Canvas3D_destroyOffScreenBuffer(
     jlong fbConfigListPtr,
     jint window)
 {
+    jclass cv_class;
+    jfieldID offScreenBuffer_field;
+    JNIEnv table = *env;
+
 #if defined(SOLARIS) || defined(__linux__)
     /*  Fix for Issue 20 */
     GLXFBConfig *fbConfigList = (GLXFBConfig *)fbConfigListPtr;
@@ -2824,12 +2918,44 @@ void JNICALL Java_javax_media_j3d_Canvas3D_destroyOffScreenBuffer(
 #endif /* SOLARIS */
 
 #ifdef WIN32
-   HBITMAP oldhbitmap;
-   HDC hdc = (HDC) window;
+    /* Fix for issue 76 */
+    PixelFormatInfo *pFormatInfoPtr = (PixelFormatInfo *)fbConfigListPtr;
+    OffScreenBufferInfo *offScreenBufferInfo = NULL;
+    HDC hpbufdc = (HDC) window;
+    
+    cv_class =  (jclass) (*(table->GetObjectClass))(env, obj);
+    offScreenBuffer_field =
+	(jfieldID) (*(table->GetFieldID))(env, cv_class, "offScreenBufferInfo", "J");
+
+    offScreenBufferInfo =
+	(OffScreenBufferInfo *) (*(table->GetLongField))(env, obj, offScreenBuffer_field);
+
+    /* fprintf(stderr,"Canvas3D_destroyOffScreenBuffer : offScreenBufferInfo 0x%x\n",
+       offScreenBufferInfo);
+    */
+    if(offScreenBufferInfo == NULL) {
+	return;
+    }
+
+    if(offScreenBufferInfo->isPbuffer) {
+	/* fprintf(stderr,"Canvas3D_destroyOffScreenBuffer : Pbuffer\n"); */
+
+	pFormatInfoPtr->wglReleasePbufferDCARB(offScreenBufferInfo->hpbuf, hpbufdc);
+	pFormatInfoPtr->wglDestroyPbufferARB(offScreenBufferInfo->hpbuf);
+    }
+    else {
+	HBITMAP oldhbitmap;
+	HDC hdc = (HDC) window;
+	
+	/* fprintf(stderr,"Canvas3D_destroyOffScreenBuffer : BitMap\n"); */
+	oldhbitmap = SelectObject(hdc, NULL);
+	DeleteObject(oldhbitmap);
+	DeleteDC(hdc);
+    }
+    
+    free(offScreenBufferInfo);
+    (*(table->SetLongField))(env, obj, offScreenBuffer_field, (jlong)0);
 
-   oldhbitmap = SelectObject(hdc, NULL);
-   DeleteObject(oldhbitmap);
-   DeleteDC(hdc);
 #endif /* WIN32 */
 }
 
@@ -3130,7 +3256,7 @@ void JNICALL Java_javax_media_j3d_Canvas3D_createQueryContext(
     }
    
    
-    /* create window if window == 0 and offscreen == true */
+    /* onscreen rendering and window is 0 now */
     if(window == 0 && !offScreen) {
 
 	vinfo = glXGetVisualFromFBConfig((Display*)display, fbConfigList[0]);
@@ -3186,74 +3312,48 @@ void JNICALL Java_javax_media_j3d_Canvas3D_createQueryContext(
     HWND hWnd;
     static char szAppName[] = "OpenGL";
     jlong vinfo = 0;
-    
-    static PIXELFORMATDESCRIPTOR pfd = {
-	sizeof(PIXELFORMATDESCRIPTOR),
-	1,                      /* Version number */
-	PFD_DRAW_TO_WINDOW |
-	PFD_SUPPORT_OPENGL|
-	PFD_DOUBLEBUFFER,
-	PFD_TYPE_RGBA,
-	24,                     /* 24 bit color depth */
-	0, 0, 0,                /* RGB bits and pixel sizes */
-	0, 0, 0,                /* Donnot care about them  */
-	0, 0,                   /* no alpha buffer info */
-	0, 0, 0, 0, 0,          /* no accumulation buffer */
-	32,                     /* 16 bit depth buffer */
-	0,                      /* no stencil buffer */
-	0,                      /* no auxiliary buffers */
-	PFD_MAIN_PLANE,         /* layer type */
-	0,                      /* reserved, must be 0 */
-	0,                      /* no layer mask */
-	0,                      /* no visible mask */
-	0                       /* no damage mask */
-    };
-
     jboolean result;
 
+    /* Fix for issue 76 */
+    
+    /*
+      fprintf(stderr, "Canvas3D_createQueryContext:\n");
+      fprintf(stderr, "window is  0x%x, offScreen %d\n", window, offScreen);
+    */
+    
     /* onscreen rendering and window is 0 now */
     if(window == 0 && !offScreen){
+	/* fprintf(stderr, "CreateQueryContext : window == 0 && !offScreen\n"); */
 	hWnd = createDummyWindow((const char *)szAppName);
 	if (!hWnd)
 	    return; 
 	hdc =  GetDC(hWnd);
     }
     else if(window == 0 && offScreen){
+	/* fprintf(stderr, "CreateQueryContext : window == 0 && offScreen\n"); */
 	hdc = (HDC)Java_javax_media_j3d_Canvas3D_createOffScreenBuffer( env, obj, 0, display,
-									window, vid, width, height);
-	pfd.dwFlags = PFD_DRAW_TO_BITMAP | PFD_SUPPORT_OPENGL |
-	    PFD_SUPPORT_GDI;
-	vid = -1;
-    }
-    else if(window != 0 && offScreen){
-	pfd.dwFlags = PFD_DRAW_TO_BITMAP | PFD_SUPPORT_OPENGL |
-	    PFD_SUPPORT_GDI;
-	vid = -1;
-	hdc =  (HDC) window;
+									vid, fbConfigListPtr,
+									width, height);
     }
-    else if(window !=0 && !offScreen){
+    else if(window != 0){
+	/* fprintf(stderr, "CreateQueryContext : window != 0 0x%x\n", window); */
 	hdc =  (HDC) window;
     }
 
     newWin = (int)hdc;
    
-    /* vid of -1 means no vid was specified - do the old way */
-    if (vid == -1) {
-	/*
-	 * choose the "pixel format", terminology is equivalent
-	 * to UNIX "visual"
-	 */
-	PixelFormatID = ChoosePixelFormat(hdc, &pfd);
-
-	if(PixelFormatID == 0) {
-	    fprintf(stderr,"\nERROR: pixel format ID = 0");
-	    return; 
-	}
+    /*
+     * vid must be a PixelFormat returned
+     * by wglChoosePixelFormat() or wglChoosePixelFormatARB.
+     */
+    if (vid <= 0) {
+	printErrorMessage("Canvas3D_createQueryContext: PixelFormat is invalid");
+	return;
     }
-    else
+    else {
 	PixelFormatID = vid;
-
-    SetPixelFormat(hdc, PixelFormatID, &pfd);
+    }
+    SetPixelFormat(hdc, PixelFormatID, NULL);
 
     hrc = wglCreateContext( hdc );
     
@@ -3285,7 +3385,7 @@ void JNICALL Java_javax_media_j3d_Canvas3D_createQueryContext(
     ctxInfo->context = gctx;
     
     /* get current context properties */
-    if (getPropertiesFromCurrentContext(env, obj, ctxInfo, (jlong) hdc, PixelFormatID, display,
+    if (getPropertiesFromCurrentContext(env, obj, ctxInfo, (jlong) hdc, PixelFormatID,
 					stencilSize)) {
 	/* put the properties to the Java side */
 	setupCanvasProperties(env, obj, ctxInfo);
diff --git a/src/native/ogl/NativeConfigTemplate3D.c b/src/native/ogl/NativeConfigTemplate3D.c
index 4dbbfaa..11c3b6e 100644
--- a/src/native/ogl/NativeConfigTemplate3D.c
+++ b/src/native/ogl/NativeConfigTemplate3D.c
@@ -132,7 +132,7 @@ GLXFBConfig *find_AA_S_FBConfigs(jlong display,
 	    glxAttrs[index++] = GLX_SAMPLE_BUFFERS_ARB;
 	    glxAttrs[index++] = 1;
 	    glxAttrs[index++] = GLX_SAMPLES_ARB;
-	    glxAttrs[index++] = 1;
+	    glxAttrs[index++] = 2;
 	    glxAttrs[index] = None;
 
 	    fbConfigList = find_S_FBConfigs(display, screen, 
@@ -272,7 +272,7 @@ jint JNICALL Java_javax_media_j3d_NativeConfigTemplate3D_chooseOglVisual(
     Display *dpy = (Display *) display;
     
     fbConfigListPtr = (*env)->GetLongArrayElements(env, fbConfigArray, NULL);
-    mx_ptr = (jint *)(*env)->GetPrimitiveArrayCritical(env, attrList, NULL);
+    mx_ptr = (*env)->GetIntArrayElements(env, attrList, NULL);
 
     /*
      * convert Java 3D values to GLX
@@ -307,8 +307,7 @@ jint JNICALL Java_javax_media_j3d_NativeConfigTemplate3D_chooseOglVisual(
     sVal = mx_ptr[STEREO];
     antialiasVal = mx_ptr[ANTIALIASING]; 
 
-
-    (*env)->ReleasePrimitiveArrayCritical(env, attrList, mx_ptr, 0);
+    (*env)->ReleaseIntArrayElements(env, attrList, mx_ptr, JNI_ABORT);
 
     fbConfigList = find_DB_AA_S_FBConfigs(display, screen, glxAttrs, sVal,
 					  dbVal, antialiasVal, index);
@@ -522,6 +521,34 @@ jboolean JNICALL Java_javax_media_j3d_J3dGraphicsConfig_isValidVisualID(
 
 extern HWND createDummyWindow(const char* szAppName);
 
+
+PIXELFORMATDESCRIPTOR getDummyPFD() {
+    
+    /*  Dummy pixel format.  -- Chien */
+    static PIXELFORMATDESCRIPTOR dummy_pfd = {
+	sizeof(PIXELFORMATDESCRIPTOR),
+	1,                      /* Version number */
+	PFD_DRAW_TO_WINDOW |
+	PFD_SUPPORT_OPENGL,
+	PFD_TYPE_RGBA,
+	16,                     /* 16 bit color depth */
+	0, 0, 0,                /* RGB bits and pixel sizes */
+	0, 0, 0,                /* Do not care about them */
+	0, 0,                   /* no alpha buffer info */
+	0, 0, 0, 0, 0,          /* no accumulation buffer */
+	8,                      /* 8 bit depth buffer */
+	0,                      /* no stencil buffer */
+	0,                      /* no auxiliary buffers */
+	PFD_MAIN_PLANE,         /* layer type */
+	0,                      /* reserved, must be 0 */
+	0,                      /* no layer mask */
+	0,                      /* no visible mask */
+	0                       /* no damage mask */
+    };
+
+    return dummy_pfd;
+}
+
 /*
 void printPixelDescriptor(PIXELFORMATDESCRIPTOR *pfd)
 {
@@ -570,10 +597,9 @@ void printPixelDescriptor(PIXELFORMATDESCRIPTOR *pfd)
     printf("\n");
 
 }
-
 */
 
-BOOL isSupportedWGL(const char * extensions, const char *extension_string) {    
+BOOL isSupportedWGL(const char *extensions, const char *extension_string) {    
     /* get the list of supported extensions */
     const char *p = extensions; 
 
@@ -597,33 +623,39 @@ HDC getMonitorDC(int screen)
     return CreateDC("DISPLAY", NULL, NULL, NULL);     
 }
 
-int findPixelFormatSwitchDoubleBufferAndStereo (PIXELFORMATDESCRIPTOR* pfd, HDC hdc, int *mx_ptr)
+int find_DB_S_STDPixelFormat(PIXELFORMATDESCRIPTOR* pfd, HDC hdc,
+			     int *mx_ptr, GLboolean offScreen)
 {
 
     int pf;
+    PIXELFORMATDESCRIPTOR newpfd;
     
     pf = ChoosePixelFormat(hdc, pfd);
-
-    /* Check if pixel format support min. requirement */
-    DescribePixelFormat(hdc, pf, sizeof(*pfd), pfd);
-    
-    if ((pfd->cRedBits < (unsigned char) mx_ptr[RED_SIZE]) || 
-	(pfd->cGreenBits < (unsigned char) mx_ptr[GREEN_SIZE]) ||
-	(pfd->cBlueBits  < (unsigned char) mx_ptr[BLUE_SIZE]) ||
-	(pfd->cDepthBits < (unsigned char) mx_ptr[DEPTH_SIZE]) ||
-	((mx_ptr[DOUBLEBUFFER] == REQUIRED) && ((pfd->dwFlags & PFD_DOUBLEBUFFER) == 0)) ||
-	((mx_ptr[STEREO] == REQUIRED) && ((pfd->dwFlags & PFD_STEREO) == 0)))
-	{
-	    return -1;
-	}
     
-    if ((mx_ptr[ANTIALIASING] == REQUIRED) &&
-	((pfd->cAccumRedBits <= 0) ||
-	 (pfd->cAccumGreenBits <= 0) ||
-	 (pfd->cAccumBlueBits  <= 0)))
-	{
-	    return -1;
-	}
+    if(!offScreen) {
+	/* onScreen : Check if pixel format support min. requirement */
+	DescribePixelFormat(hdc, pf, sizeof(newpfd), &newpfd);
+
+	if ((newpfd.cRedBits < (unsigned char) mx_ptr[RED_SIZE]) || 
+	    (newpfd.cGreenBits < (unsigned char) mx_ptr[GREEN_SIZE]) ||
+	    (newpfd.cBlueBits  < (unsigned char) mx_ptr[BLUE_SIZE]) ||
+	    (newpfd.cDepthBits < (unsigned char) mx_ptr[DEPTH_SIZE]) ||
+	    ((mx_ptr[DOUBLEBUFFER] == REQUIRED) &&
+	     ((newpfd.dwFlags & PFD_DOUBLEBUFFER) == 0)) ||
+	    ((mx_ptr[STEREO] == REQUIRED) && ((newpfd.dwFlags & PFD_STEREO) == 0)))
+	    {
+		return -1;
+	    }
+	
+	if ((mx_ptr[ANTIALIASING] == REQUIRED) &&
+	    ((newpfd.cAccumRedBits <= 0) ||
+	     (newpfd.cAccumGreenBits <= 0) ||
+	     (newpfd.cAccumBlueBits  <= 0)))
+	    {
+		return -1;
+	    }
+    }
+    
     return pf; 
 }
 
@@ -637,393 +669,480 @@ void printErrorMessage(char *message)
     FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
 		  FORMAT_MESSAGE_FROM_SYSTEM,
 		  NULL, err, 0, (LPTSTR)&errString, 0, NULL);    
-    fprintf(stderr, "%s - %s\n", message, errString);
+    fprintf(stderr, "Java 3D ERROR : %s - %s\n", message, errString);
     LocalFree(errString);
 }
 
-/* Prefer multiSample in following order
-   4, 5, 6, 3, 7, 8, 2, 9, 10, 11, ...
-*/
-int getMultiSampleScore(int s)
-{
-    static int multiSampleScore[9] = {9999, 9999, 6, 3, 0, 1, 2, 4, 5};
-
-    if (s < 9) {
-	return multiSampleScore[s];
-    }
-    return s-2;
-}
-
-
-/* Max no of format wglChoosePixelFormatEXT can return  */
-#define NFORMAT 100
+/* Fix for issue 76 */
+#define  MAX_WGL_ATTRS_LENGTH 30
 
-int getExtPixelFormat(int *nativeConfigAttrs)
-{
-    static const BOOL debug = FALSE;
-    static char szAppName[] = "Choose Pixel Format";
-
-    static PIXELFORMATDESCRIPTOR pfd = {
-	sizeof(PIXELFORMATDESCRIPTOR),
-	1,                      /* Version number */
-	PFD_DRAW_TO_WINDOW |
-	PFD_SUPPORT_OPENGL,
-	PFD_TYPE_RGBA,
-	16,                     /* 16 bit color depth */
-	0, 0, 0,                /* RGB bits and pixel sizes */
-	0, 0, 0,                /* Do not care about them */
-	0, 0,                   /* no alpha buffer info */
-	0, 0, 0, 0, 0,          /* no accumulation buffer */
-	8,                      /* 8 bit depth buffer */
-	0,                      /* no stencil buffer */
-	0,                      /* no auxiliary buffers */
-	PFD_MAIN_PLANE,         /* layer type */
-	0,                      /* reserved, must be 0 */
-	0,                      /* no layer mask */
-	0,                      /* no visible mask */
-	0                       /* no damage mask */
-    };
 
-    HWND hwnd;
-    HGLRC hrc;
-    HDC   hdc;
-    int attr[22];
-    int piValues[12];
-    int i, idx;
-    int pNumFormats[NFORMAT], nAvailableFormat;
-    const char* supportedExtensions;
-    int score;
-    int highestScore, highestScorePF;
-    int highestScoreAlpha, lowestScoreMultiSample;
-
-    /* declare function pointers for WGL functions */
-    PFNWGLGETEXTENSIONSSTRINGEXTPROC  wglGetExtensionsStringEXT = NULL;
-    PFNWGLCHOOSEPIXELFORMATEXTPROC wglChoosePixelFormatEXT = NULL;
-    PFNWGLGETPIXELFORMATATTRIBIVEXTPROC wglGetPixelFormatAttribivEXT = NULL;    
+int find_Stencil_PixelFormat(HDC hdc, PixelFormatInfo * pFormatInfo,
+			     int* wglAttrs, int sIndex) {
+    
+    int pFormat, availableFormats, index;
+    
+    J3D_ASSERT((sIndex+4) < MAX_WGL_ATTRS_LENGTH);
+    
 
+    index = sIndex;
+    wglAttrs[index++] = WGL_STENCIL_BITS_ARB;
+    wglAttrs[index++] = 1;
     /*
-     * Select any pixel format and bound current context to
-     * it so that we can get the wglChoosePixelFormatARB entry point.
-     * Otherwise wglxxx entry point will always return null.
-     * That's why we need to create a dummy window also.
+     * Terminate by 2 zeros to avoid driver bugs
+     * that assume attributes always come in pairs.
      */
-    hwnd = createDummyWindow((const char *)szAppName);
+    wglAttrs[index] = 0;
+    wglAttrs[index+1] = 0;
 
-    if (!hwnd) {
-	return -1;
+    pFormat = -1;
+    
+    if ((pFormatInfo->wglChoosePixelFormatARB(hdc, wglAttrs, NULL, 1,
+					      &pFormat, &availableFormats)) && (availableFormats > 0)) {
+	
+	/* fprintf(stderr, "wglChoosePixelFormatARB : pFormat %d availableFormats %d\n",
+	   pFormat, availableFormats); */
+	return pFormat;
     }
-    hdc = GetDC(hwnd);
+    
+    /* fprintf(stderr, "wglChoosePixelFormatARB (TRY 1): FAIL\n"); */
+    
+    index = sIndex;
+    /*
+     * Terminate by 2 zeros to avoid driver bugs
+     * that assume attributes always come in pairs.
+     */
+    wglAttrs[index] = 0;
+    wglAttrs[index+1] = 0;
+	
+    pFormat = -1;
 
-    pNumFormats[0] = ChoosePixelFormat(hdc, &pfd);
-    if (!pNumFormats[0]) {
-	printErrorMessage("Failed in ChoosePixelFormat");
-	DestroyWindow(hwnd);
-	UnregisterClass(szAppName, (HINSTANCE)NULL);
-	return -1;
+    if ((pFormatInfo->wglChoosePixelFormatARB(hdc, wglAttrs, NULL, 1,
+					      &pFormat, &availableFormats)) && (availableFormats > 0)) {
+
+	/* fprintf(stderr, "wglChoosePixelFormatARB : pFormat %d availableFormats %d\n",
+	   pFormat, availableFormats); */
+	
+	return pFormat;
     }
+    
+    /* fprintf(stderr, "wglChoosePixelFormatARB (TRY 2): FAIL\n"); */
+    return -1;
+}
 
-    SetPixelFormat(hdc, pNumFormats[0], &pfd);
+int find_S_PixelFormat(HDC hdc, PixelFormatInfo * pFormatInfo,
+		       int* wglAttrs, int sVal, int sIndex) {
     
-    hrc = wglCreateContext(hdc);
-    if (!hrc) {
-	printErrorMessage("Failed in wglCreateContext");
-	DestroyWindow(hwnd);
-	UnregisterClass(szAppName, (HINSTANCE)NULL);
-	return -1;
+    int pFormat, index;
+    
+    J3D_ASSERT((sIndex+4) < MAX_WGL_ATTRS_LENGTH);
+    
+    if (sVal == REQUIRED || sVal== PREFERRED) {
+
+	index = sIndex;
+	wglAttrs[index++] = WGL_STEREO_ARB;
+	wglAttrs[index++] = TRUE;
+	/*
+	 * Terminate by 2 zeros to avoid driver bugs
+	 * that assume attributes always come in pairs.
+	 */
+	wglAttrs[index] = 0;
+	wglAttrs[index+1] = 0;
+	
+	pFormat = find_Stencil_PixelFormat(hdc, pFormatInfo,
+					   wglAttrs, index);
+	/* fprintf(stderr,"STEREO REQUIRED or PREFERRED ***pFormat  %d\n", pFormat); */
+	    
+	if(pFormat >= 0) {
+	    return pFormat;
+	}	
     }
     
-    if (!wglMakeCurrent(hdc, hrc)) {
-	printErrorMessage("Failed in wglMakeCurrent");
-	ReleaseDC(hwnd, hdc);
-	wglDeleteContext(hrc);
-	DestroyWindow(hwnd);
-	UnregisterClass(szAppName, (HINSTANCE)NULL);
-	return -1;
+    if (sVal == UNNECESSARY || sVal== PREFERRED) {
+	
+	index = sIndex;
+	wglAttrs[index++] = WGL_STEREO_ARB;
+	wglAttrs[index++] = FALSE;
+	/*
+	 * Terminate by 2 zeros to avoid driver bugs
+	 * that assume attributes always come in pairs.
+	 */
+	wglAttrs[index] = 0;
+	wglAttrs[index+1] = 0;
+	
+	pFormat = find_Stencil_PixelFormat(hdc, pFormatInfo,
+					   wglAttrs, index);
+	
+	/* fprintf(stderr,"STEREO UNNECC. or PREFERRED ***pFormat  %d\n", pFormat); */
+	
+	if(pFormat >= 0) {
+	    return pFormat;
+	}
     }
 
-    wglGetExtensionsStringEXT = (PFNWGLGETEXTENSIONSSTRINGEXTPROC)
-	wglGetProcAddress("wglGetExtensionsStringARB");
+    if (sVal == UNNECESSARY) {
+	index = sIndex;
+	wglAttrs[index++] = WGL_STEREO_ARB;
+	wglAttrs[index++] = TRUE;
+	/*
+	 * Terminate by 2 zeros to avoid driver bugs
+	 * that assume attributes always come in pairs.
+	 */
+	wglAttrs[index] = 0;
+	wglAttrs[index+1] = 0;
+	
+	pFormat = find_Stencil_PixelFormat(hdc, pFormatInfo,
+					   wglAttrs, index);
 
-    if (wglGetExtensionsStringEXT == NULL) {
-	wglGetExtensionsStringEXT = (PFNWGLGETEXTENSIONSSTRINGEXTPROC)
-	    wglGetProcAddress("wglGetExtensionsStringEXT");
-	if (wglGetExtensionsStringEXT == NULL) {
-	    if (debug) {
-		printf("wglGetExtensionsStringEXT/ARB not support !\n");
-	    }
-	    ReleaseDC(hwnd, hdc);
-	    wglDeleteContext(hrc);
-	    DestroyWindow(hwnd);
-	    UnregisterClass(szAppName, (HINSTANCE)NULL);	    
-	    return -1;
-	}
-	if (debug) {
-	    printf("Support wglGetExtensionsStringEXT\n");
-	}
-    } else {
-	if (debug) {	
-	    printf("Support wglGetExtensionsStringARB\n");
+	/* fprintf(stderr,"STEREO UNNECC. ***pFormat  %d\n", pFormat); */
+
+	if(pFormat >= 0) {
+	    return pFormat;
 	}
     }
     
-    /* get the list of supported extensions */
-    supportedExtensions = (const char *)wglGetExtensionsStringEXT(hdc);    
+    return -1;
+}
 
-    if (debug) {
-	fprintf(stderr, "WGL Supported extensions: %s.\n", supportedExtensions);    
-    }
+
+int find_AA_S_PixelFormat( HDC hdc, PixelFormatInfo * pFormatInfo,
+			   int* wglAttrs, int sVal,
+			   int antialiasVal, int antialiasIndex) {
+    
+    int index;
+    int pFormat;
+    GLboolean supportMS = GL_FALSE;
     
-    if (!isSupportedWGL(supportedExtensions, "WGL_ARB_multisample") &&
-	!isSupportedWGL(supportedExtensions, "WGL_EXT_multisample") &&
-	!isSupportedWGL(supportedExtensions, "WGL_SGIS_multisample")) {	
+    J3D_ASSERT((antialiasIndex+8) < MAX_WGL_ATTRS_LENGTH);
 
-	/* Under Wildcat III it doesn't use wglGetExtensionString */
-	supportedExtensions = (char *) glGetString(GL_EXTENSIONS);
+    if(antialiasVal == REQUIRED || antialiasVal== PREFERRED) {
 
-	if (debug) {
-	    fprintf(stderr, "GL Supported extensions: %s.\n", supportedExtensions);    
+	if(isSupportedWGL(pFormatInfo->supportedExtensions, "WGL_ARB_multisample")) {	
+	    supportMS = GL_TRUE;
 	}
-	
-	if (!isSupportedWGL(supportedExtensions, "GL_ARB_multisample") &&
-	    !isSupportedWGL(supportedExtensions, "GL_EXT_multisample") &&
-	    !isSupportedWGL(supportedExtensions, "GL_SGIS_multisample")) {	    
-	    ReleaseDC(hwnd, hdc);
-	    wglDeleteContext(hrc);
-	    DestroyWindow(hwnd);
-	    UnregisterClass(szAppName, (HINSTANCE)NULL);	    
-	    return -1;
+	else {
+	    /* Under Wildcat III it doesn't use wglGetExtensionString */
+	    char *supportedExtensions = (char *) glGetString(GL_EXTENSIONS);	    
+
+	    /* fprintf(stderr, "GL Supported extensions: %s.\n", supportedExtensions); */
+	    
+	    if (isSupportedWGL(supportedExtensions, "GL_ARB_multisample")) {	    
+		supportMS = GL_TRUE;
+	    }
 	}
-    }
-    
-    wglChoosePixelFormatEXT = (PFNWGLCHOOSEPIXELFORMATEXTPROC)
-	wglGetProcAddress("wglChoosePixelFormatARB");
-    
-    if (wglChoosePixelFormatEXT == NULL) {
-	wglChoosePixelFormatEXT = (PFNWGLCHOOSEPIXELFORMATEXTPROC)
-	    wglGetProcAddress("wglChoosePixelFormatEXT");
-	if (wglChoosePixelFormatEXT == NULL) {
-	    if (debug) {
-		printf("wglChoosePixelFormatARB/EXT not support !\n");
+	
+	if(supportMS) {
+
+	    index = antialiasIndex;
+	    wglAttrs[index++] = WGL_SAMPLE_BUFFERS_ARB;
+	    wglAttrs[index++] = 1;
+	    wglAttrs[index++] = WGL_SAMPLES_ARB;
+	    wglAttrs[index++] = 2;  
+	    /*
+	     * Terminate by 2 zeros to avoid driver bugs
+	     * that assume attributes always come in pairs.
+	     */
+	    wglAttrs[index] = 0;
+	    wglAttrs[index+1] = 0;
+	    
+	    pFormat = find_S_PixelFormat(hdc, pFormatInfo,
+					 wglAttrs, sVal, index);
+	    
+	    if(pFormat >= 0) {
+		return pFormat;
 	    }
-	    ReleaseDC(hwnd, hdc);
-	    wglDeleteContext(hrc);
-	    DestroyWindow(hwnd);
-	    UnregisterClass(szAppName, (HINSTANCE)NULL);	    	    
-	    return -1;
-	} 
-	if (debug) {
-	    printf("Support wglChoosePixelFormatEXT\n");
 	}
-    } else {
-	if (debug) {
-	    printf("Support wglChoosePixelFormatARB\n");
-	}	
     }
     
-    idx = 0;
-    attr[idx++] = WGL_SUPPORT_OPENGL_EXT;
-    attr[idx++] = TRUE;
-    attr[idx++] = WGL_DRAW_TO_WINDOW_EXT; 
-    attr[idx++] = TRUE;
-    attr[idx++] = WGL_RED_BITS_EXT;
-    attr[idx++] = nativeConfigAttrs[RED_SIZE];
-    attr[idx++] = WGL_GREEN_BITS_EXT;
-    attr[idx++] = nativeConfigAttrs[GREEN_SIZE];
-    attr[idx++] = WGL_BLUE_BITS_EXT;
-    attr[idx++] = nativeConfigAttrs[BLUE_SIZE];
-    attr[idx++] = WGL_DEPTH_BITS_EXT;
-    attr[idx++] = nativeConfigAttrs[DEPTH_SIZE];
-
-    if (nativeConfigAttrs[DOUBLEBUFFER] == REQUIRED) {
-	attr[idx++] = WGL_DOUBLE_BUFFER_EXT;
-	attr[idx++] = TRUE;
-    }
-    if (nativeConfigAttrs[STEREO] == REQUIRED) {    
-	attr[idx++] = WGL_STEREO_EXT;
-	attr[idx++] = TRUE;
-    }
+    if ( antialiasVal == REQUIRED ) {
 
-    if (nativeConfigAttrs[ANTIALIASING] == REQUIRED) {        
-	attr[idx++] = WGL_SAMPLE_BUFFERS_ARB;
-	attr[idx++] = TRUE;
-	attr[idx++] = WGL_SAMPLES_ARB;
-	attr[idx++] = 2;
+	index = antialiasIndex;
+        wglAttrs[index++] = WGL_ACCUM_RED_BITS_ARB;
+        wglAttrs[index++] = 8;
+        wglAttrs[index++] = WGL_ACCUM_GREEN_BITS_ARB;
+        wglAttrs[index++] = 8;
+        wglAttrs[index++] = WGL_ACCUM_BLUE_BITS_ARB;
+        wglAttrs[index++] = 8;
+	/*
+	 * Terminate by 2 zeros to avoid driver bugs
+	 * that assume attributes always come in pairs.
+	 */
+	wglAttrs[index] = 0;
+	wglAttrs[index+1] = 0;
+	
+	pFormat = find_S_PixelFormat(hdc, pFormatInfo,
+				     wglAttrs, sVal, index);
+	
+	if(pFormat >= 0) {
+	    return pFormat;
+	}
     }
-
+    
     /*
      * Terminate by 2 zeros to avoid driver bugs
      * that assume attributes always come in pairs.
      */
-    attr[idx++] = 0;
-    attr[idx++] = 0;
+    index = antialiasIndex;
+    wglAttrs[index] = 0;
+    wglAttrs[index+1] = 0;
+
+    if (antialiasVal == UNNECESSARY || antialiasVal == PREFERRED) {
+
+	pFormat = find_S_PixelFormat(hdc, pFormatInfo,
+				     wglAttrs, sVal, index);
+	
+	if(pFormat >= 0) {
+	    return pFormat;
+	}
 	
-    if (!wglChoosePixelFormatEXT(hdc, (const int *)attr, NULL, NFORMAT,
-				 pNumFormats, &nAvailableFormat)) {
-	printErrorMessage("Failed in wglChoosePixelFormatEXT");
-	ReleaseDC(hwnd, hdc);
-	wglDeleteContext(hrc);
-	DestroyWindow(hwnd);
-	UnregisterClass(szAppName, (HINSTANCE)NULL);	    
-	return -1;
-    }
-    
-    if (debug) {
-	printf("No. of available pixel format is: %d\n", nAvailableFormat);
     }
 
-    if (nAvailableFormat <= 0) {
-	ReleaseDC(hwnd, hdc);
-	wglDeleteContext(hrc);
-	DestroyWindow(hwnd);
-	UnregisterClass(szAppName, (HINSTANCE)NULL);	    
-	return -1;
-    }
+    return -1;
     
-    wglGetPixelFormatAttribivEXT = (PFNWGLGETPIXELFORMATATTRIBIVEXTPROC)
-	wglGetProcAddress("wglGetPixelFormatAttribivARB");
+}
 
-    if (wglGetPixelFormatAttribivEXT == NULL) {
-	wglGetPixelFormatAttribivEXT = (PFNWGLGETPIXELFORMATATTRIBIVEXTPROC)
-	    wglGetProcAddress("wglGetPixelFormatAttribivEXT");
 
-	if (wglGetPixelFormatAttribivEXT == NULL) {
-	    if (debug) {
-		printf("wglGetPixelFormatAttribivEXT/ARB not support !\n");
-	    }
-	    ReleaseDC(hwnd, hdc);
-	    wglDeleteContext(hrc);
-	    DestroyWindow(hwnd);
-	    UnregisterClass(szAppName, (HINSTANCE)NULL);	    	    
-	    return -1;
-	} 
-	if (debug) {
-	    printf("Support wglGetPixelFormatAttribivEXT\n");
+int find_DB_AA_S_PixelFormat( HDC hdc, PixelFormatInfo * pFormatInfo,
+			      int* wglAttrs, int sVal, int dbVal,
+			      int antialiasVal, int dbIndex) {
+    
+    int index = dbIndex;
+    int pFormat;
+    
+    J3D_ASSERT((dbIndex+4) < MAX_WGL_ATTRS_LENGTH); 
+
+    if (dbVal == REQUIRED || dbVal== PREFERRED) {
+	    
+	index = dbIndex;
+	wglAttrs[index++] = WGL_DOUBLE_BUFFER_ARB;
+	wglAttrs[index++] = TRUE;
+	/*
+	 * Terminate by 2 zeros to avoid driver bugs
+	 * that assume attributes always come in pairs.
+	 */
+	wglAttrs[index] = 0;
+	wglAttrs[index+1] = 0;
+
+ 	pFormat = find_AA_S_PixelFormat(hdc, pFormatInfo,
+					wglAttrs, sVal, 
+					antialiasVal, index);
+	    
+	if(pFormat >= 0) {
+	    return pFormat;
+	}
+    }
+    
+    if (dbVal == UNNECESSARY || dbVal== PREFERRED) {
+	index = dbIndex;
+	wglAttrs[index++] = WGL_DOUBLE_BUFFER_ARB;
+	wglAttrs[index++] = TRUE;
+	/*
+	 * Terminate by 2 zeros to avoid driver bugs
+	 * that assume attributes always come in pairs.
+	 */
+	wglAttrs[index] = 0;
+	wglAttrs[index+1] = 0;
+
+	pFormat = find_AA_S_PixelFormat(hdc, pFormatInfo,
+					wglAttrs, sVal, 
+					antialiasVal, index);
+	
+	if(pFormat >= 0) {
+	    return pFormat;
 	}
-    } else {
-	if (debug) {
-	    printf("Support wglGetPixelFormatAttribivARB\n");
-	}	
     }
 
-    idx = 0;
-    attr[idx++] = WGL_ACCELERATION_EXT;
-    attr[idx++] = WGL_RED_BITS_EXT;
-    attr[idx++] = WGL_GREEN_BITS_EXT;
-    attr[idx++] = WGL_BLUE_BITS_EXT;
-    attr[idx++] = WGL_ALPHA_BITS_EXT;    
-    attr[idx++] = WGL_DEPTH_BITS_EXT;
-    attr[idx++] = WGL_STENCIL_BITS_EXT;
-    attr[idx++] = WGL_SAMPLE_BUFFERS_ARB;
-    attr[idx++] = WGL_SAMPLES_ARB;
-    attr[idx++] = WGL_DOUBLE_BUFFER_EXT;
-    attr[idx++] = WGL_STEREO_EXT;
-    attr[idx] = 0;
-
-    /* Select the best pixel format based on score */
-    highestScore = 0;
-    highestScorePF = -1;
-    highestScoreAlpha = 0;
-    lowestScoreMultiSample = 9999;
-    
-    for (i=0; i < nAvailableFormat; i++) {
-	if (!wglGetPixelFormatAttribivEXT(hdc, pNumFormats[i], 0, idx, attr, piValues)) {
-	    printErrorMessage("Failed in wglGetPixelFormatAttribivEXT");
-	    ReleaseDC(hwnd, hdc);
-	    wglDeleteContext(hrc);
-	    DestroyWindow(hwnd);
-	    UnregisterClass(szAppName, (HINSTANCE)NULL);
-	    return -1;
+    if (dbVal == UNNECESSARY) {
+	index = dbIndex;
+	wglAttrs[index++] = WGL_DOUBLE_BUFFER_ARB;
+	wglAttrs[index++] = TRUE;
+	/*
+	 * Terminate by 2 zeros to avoid driver bugs
+	 * that assume attributes always come in pairs.
+	 */
+	wglAttrs[index] = 0;
+	wglAttrs[index+1] = 0;
+
+ 	pFormat = find_AA_S_PixelFormat(hdc, pFormatInfo,
+					wglAttrs, sVal, 
+					antialiasVal, index);
+	
+	if(pFormat >= 0) {
+	    return pFormat;
 	}
-	if (debug) {
-	    printf("Format %d\n", pNumFormats[i]);
-
-	    if (piValues[0] == WGL_FULL_ACCELERATION_EXT) {
-		printf("WGL_FULL_ACCELERATION_EXT");
-	    } else if (piValues[0] == WGL_GENERIC_ACCELERATION_EXT) {
-		printf("WGL_GENERIC_ACCELERATION_EXT");		
-	    } else {
-		printf("WGL_NO_ACCELERATION_EXT");		
-	    }
+    }
 
-	    printf(" R %d, G %d, B %d, A %d, Depth %d, Stencil %d",
-		   piValues[1], piValues[2], piValues[3], piValues[4],
-		   piValues[5], piValues[6]);
+    return -1;
+}
 
-	    if (piValues[7] == TRUE) {
-		printf(" MultiSample %d", piValues[8]);
-	    }
+int chooseSTDPixelFormat(
+    JNIEnv   *env,
+    jint      screen,
+    jintArray attrList,
+    HDC       hdc,
+    GLboolean offScreen)
+{
+    int *mx_ptr;
+    int   dbVal;  /* value for double buffering */
+    int   sVal;   /* value for stereo */
+    int   pFormat = -1;  /* PixelFormat */
+    PIXELFORMATDESCRIPTOR pfd;
 
-	    if (piValues[9] == TRUE) {
-		printf(" DoubleBuffer");
-	    }
-	    
-	    if (piValues[10] == TRUE) {
-		printf(" Stereo");
-	    }
-	    printf("\n");
-	}
+    /* fprintf(stderr, "chooseSTDPixelFormat : screen 0x%x, offScreen %d hdc 0x%x\n",
+       screen, offScreen, hdc);  */
+    
+    ZeroMemory(&pfd, sizeof(PIXELFORMATDESCRIPTOR));
+    pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
+    pfd.nVersion = 1;  /*TODO: when would this change? */
+    pfd.iPixelType = PFD_TYPE_RGBA;
 
-	/* Red, Green, Blue are fixed under windows so they are not checked */
-	score = 0;
+    /*
+     * Convert Java 3D values to PixelFormat
+     */
+    mx_ptr = (*env)->GetIntArrayElements(env, attrList, NULL);
 
-	if (piValues[0] == WGL_FULL_ACCELERATION_EXT) {
-	    score += 20000;
-	} else if (piValues[0] == WGL_GENERIC_ACCELERATION_EXT) {
-	    score += 10000;
-	}
-	if ((nativeConfigAttrs[DOUBLEBUFFER] == PREFERRED) &&
-	    (piValues[9] == TRUE)) {
-	    score += 5000;
-	}
-	if (piValues[4] > 0) { /* Alpha */
-	    score += 2500;
-	}
-	if ((nativeConfigAttrs[STEREO] == PREFERRED) &&
-	    (piValues[10] == TRUE)) {
-	    score += 1250;
-	}
-	if ((nativeConfigAttrs[ANTIALIASING] == PREFERRED) &&
-	    (piValues[7] == TRUE)) {
-	    score += 624;
+    if(!offScreen) {
+	
+	pfd.cRedBits   = (unsigned char) mx_ptr[RED_SIZE];
+	pfd.cGreenBits = (unsigned char) mx_ptr[GREEN_SIZE];
+	pfd.cBlueBits  = (unsigned char) mx_ptr[BLUE_SIZE];
+	pfd.cDepthBits = (unsigned char) mx_ptr[DEPTH_SIZE];
+	
+	if (mx_ptr[DOUBLEBUFFER] == REQUIRED || mx_ptr[DOUBLEBUFFER] == PREFERRED)
+	    dbVal = PFD_DOUBLEBUFFER;
+	else 
+	    dbVal = PFD_DOUBLEBUFFER_DONTCARE;
+	
+	sVal = 0;
+	if (mx_ptr[STEREO] == REQUIRED || mx_ptr[STEREO] == PREFERRED) {
+	    sVal = PFD_STEREO;
+	} else {
+	    sVal = PFD_STEREO_DONTCARE;
 	}
+    
+	pfd.dwFlags = dbVal | sVal | PFD_SUPPORT_OPENGL | PFD_DRAW_TO_WINDOW;
+
+	pfd.cStencilBits = 1;
 	
-	/* Stencil bit * 10 + Depth bit */	
-	score += piValues[6]*10 + piValues[5];
-
-	if (score > highestScore) {
-	    highestScore = score;
-	    highestScorePF = i;	    
-	    highestScoreAlpha = piValues[4];
-	    lowestScoreMultiSample = getMultiSampleScore(piValues[8]);
-	} else if (score == highestScore) {
-	    if (piValues[4] > highestScoreAlpha) {
-		highestScore = score;
-		highestScorePF = i;	    
-		highestScoreAlpha = piValues[4];
-		lowestScoreMultiSample = getMultiSampleScore(piValues[8]);
-	    } else if (piValues[4] == highestScoreAlpha) {
-		if (getMultiSampleScore(piValues[8]) < lowestScoreMultiSample) { 
-		    highestScore = score;
-		    highestScorePF = i;	    
-		    highestScoreAlpha = piValues[4];
-		    lowestScoreMultiSample = getMultiSampleScore(piValues[8]);
-		} 
-	    }
+	if (mx_ptr[ANTIALIASING] == REQUIRED) {
+	    pfd.cAccumRedBits   = 8;
+	    pfd.cAccumGreenBits = 8;
+	    pfd.cAccumBlueBits  = 8;
 	}
 
     }
+    else { /* Offscreen setting. */
+	/* We are here b/c there is no support for Pbuffer on the HW.
+	   This is a fallback path, we will hardcore the value. */  
+	
+        pfd.cRedBits   = 0;
+	pfd.cGreenBits = 0;
+	pfd.cBlueBits  = 0;
+	pfd.cDepthBits = 32;
+	
+	pfd.iPixelType = PFD_TYPE_RGBA;
+	pfd.cColorBits = 24;
+	pfd.iLayerType = PFD_MAIN_PLANE;
+	pfd.dwFlags = PFD_SUPPORT_OPENGL | PFD_DRAW_TO_BITMAP | PFD_SUPPORT_GDI;
 
-    if (debug) {
-	printf("Select Pixel Format %d\n", pNumFormats[highestScorePF]);
     }
+    
+    pFormat = find_DB_S_STDPixelFormat(&pfd, hdc, mx_ptr, offScreen);
 
-    ReleaseDC(hwnd, hdc);
-    wglDeleteContext(hrc);
-    DestroyWindow(hwnd);
-    UnregisterClass(szAppName, (HINSTANCE)NULL);
-    return pNumFormats[highestScorePF];
+    if (pFormat == -1) {
+	/* try disable stencil buffer */
+	pfd.cStencilBits = 0;
+	pFormat =  find_DB_S_STDPixelFormat(&pfd, hdc, mx_ptr, offScreen);
+    }
+    
+    (*env)->ReleaseIntArrayElements(env, attrList, mx_ptr, JNI_ABORT);
+    return pFormat;
 }
 
+PixelFormatInfo * newPixelFormatInfo(HDC hdc)
+{
+    PFNWGLGETEXTENSIONSSTRINGARBPROC  wglGetExtensionsStringARB = NULL;
+    
+    PixelFormatInfo *pFormatInfo = (PixelFormatInfo *) malloc(sizeof(PixelFormatInfo));
+
+    /* Initialize pFormatInfo */
+    pFormatInfo->onScreenPFormat = -1;
+    pFormatInfo->offScreenPFormat = -1;
+    
+    pFormatInfo->supportARB = GL_FALSE;
+    pFormatInfo->supportPbuffer = GL_FALSE;
+    pFormatInfo->supportedExtensions = NULL;
+    pFormatInfo->wglChoosePixelFormatARB = NULL; 
+    pFormatInfo->wglGetPixelFormatAttribivARB = NULL;
+    pFormatInfo->wglCreatePbufferARB = NULL;
+    pFormatInfo->wglGetPbufferDCARB = NULL;
+    pFormatInfo->wglReleasePbufferDCARB = NULL;
+    pFormatInfo->wglDestroyPbufferARB = NULL;
+    pFormatInfo->wglQueryPbufferARB = NULL;
+    
+    wglGetExtensionsStringARB = (PFNWGLGETEXTENSIONSSTRINGARBPROC)
+	wglGetProcAddress("wglGetExtensionsStringARB");
+    if (wglGetExtensionsStringARB == NULL) {
+	printErrorMessage("wglGetExtensionsStringARB not support !\n");
+	/* Doesn't support extensions, return to use standard choosePixelFormat. */
+	return pFormatInfo;  
+    }
+    
+    /* get the list of supported extensions */
+    pFormatInfo->supportedExtensions = (char *)wglGetExtensionsStringARB(hdc);    
+    
+    /* fprintf(stderr, "WGL Supported extensions: %s.\n",
+       pFormatInfo->supportedExtensions);    */
+
+    if(isSupportedWGL(pFormatInfo->supportedExtensions, "WGL_ARB_pixel_format")) { 
+	pFormatInfo->wglChoosePixelFormatARB = (PFNWGLCHOOSEPIXELFORMATARBPROC)
+	    wglGetProcAddress("wglChoosePixelFormatARB");
+	    
+	pFormatInfo->wglGetPixelFormatAttribivARB =
+	    (PFNWGLGETPIXELFORMATATTRIBIVARBPROC)
+	    wglGetProcAddress("wglGetPixelFormatAttribivARB");
+
+	if ((pFormatInfo->wglChoosePixelFormatARB != NULL) &&
+	    (pFormatInfo->wglGetPixelFormatAttribivARB != NULL)){
+
+	    /* fprintf(stderr, "wglChoosePixelFormatARB is supported.\n"); */
+	    pFormatInfo->supportARB = GL_TRUE;
+
+	    if(isSupportedWGL( pFormatInfo->supportedExtensions, "WGL_ARB_pbuffer")) {
+		/* Get pbuffer entry points */
+		pFormatInfo->wglCreatePbufferARB = (PFNWGLCREATEPBUFFERARBPROC)
+		    wglGetProcAddress("wglCreatePbufferARB");
+		pFormatInfo->wglGetPbufferDCARB = (PFNWGLGETPBUFFERDCARBPROC)
+		    wglGetProcAddress("wglGetPbufferDCARB");
+		pFormatInfo->wglReleasePbufferDCARB = (PFNWGLRELEASEPBUFFERDCARBPROC)
+		    wglGetProcAddress("wglReleasePbufferDCARB");
+		pFormatInfo->wglDestroyPbufferARB = (PFNWGLDESTROYPBUFFERARBPROC)
+		    wglGetProcAddress("wglDestroyPbufferARB"); 
+		pFormatInfo->wglQueryPbufferARB = (PFNWGLQUERYPBUFFERARBPROC)
+		    wglGetProcAddress("wglQueryPbufferARB");		    
+		
+		if((pFormatInfo->wglCreatePbufferARB != NULL) &&
+		   (pFormatInfo->wglGetPbufferDCARB != NULL) &&
+		   (pFormatInfo->wglReleasePbufferDCARB != NULL) &&
+		   (pFormatInfo->wglDestroyPbufferARB != NULL) &&
+		   (pFormatInfo->wglQueryPbufferARB != NULL)) {
+		    
+		    pFormatInfo->supportPbuffer = GL_TRUE;
+		    /* fprintf(stderr, "WGL support Pbuffer\n"); */
+		    
+		}
+		else {
+		    printErrorMessage("Problem in getting WGL_ARB_pbuffer functions !\n");
+		}
+	    }
+	}
+	else {
+	    printErrorMessage("Problem in getting WGL_ARB_pixel_format functions !\n");
+	}
+    }
+
+    return pFormatInfo;
+}
 
 JNIEXPORT
 jint JNICALL Java_javax_media_j3d_NativeConfigTemplate3D_choosePixelFormat(
@@ -1031,92 +1150,214 @@ jint JNICALL Java_javax_media_j3d_NativeConfigTemplate3D_choosePixelFormat(
     jobject   obj,
     jlong     ctxInfo,
     jint      screen,
-    jintArray attrList)
+    jintArray attrList,
+    jlongArray offScreenPFArray)
 {
-    int *mx_ptr;
-    int   dbVal;  /* value for double buffering */
-    int   sVal;   /* value for stereo */
-    HDC   hdc;
-    int pf;  /* PixelFormat */
-    PIXELFORMATDESCRIPTOR pfd;
-     
-    mx_ptr = (int *)(*env)->GetIntArrayElements(env, attrList, NULL);
-
-    if (mx_ptr[ANTIALIASING] != UNNECESSARY) {
-	pf = getExtPixelFormat(mx_ptr);
-	if (pf > 0) {
-	    return pf;
-	}
+    static const BOOL debug = TRUE;
+    static char szAppName[] = "Choose Pixel Format";
 
-	/* fallback to use standard ChoosePixelFormat and accumulation buffer */
-    }
+    int *mx_ptr;
+    int dbVal;  /* value for double buffering */
+    int sVal;   /* value for stereo */
+    int antialiasVal; /* value for antialias */
 
-    hdc = getMonitorDC(screen);
+    HWND  hwnd;
+    HGLRC hrc;
+    HDC   hdc;
+    int pixelFormat;
+    int wglAttrs[MAX_WGL_ATTRS_LENGTH]; 
+    int index, lastIndex;
+    PixelFormatInfo *pFormatInfo = NULL;    
+    jlong * offScreenPFListPtr;
+    PIXELFORMATDESCRIPTOR dummy_pfd = getDummyPFD();
     
-    ZeroMemory(&pfd, sizeof(PIXELFORMATDESCRIPTOR));
-    pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
-    pfd.nVersion = 1;  /*TODO: when would this change? */
-    pfd.iPixelType = PFD_TYPE_RGBA;
-
     /*
-     * Convert Java 3D values to PixelFormat
+     * Select any pixel format and bound current context to
+     * it so that we can get the wglChoosePixelFormatARB entry point.
+     * Otherwise wglxxx entry point will always return null.
+     * That's why we need to create a dummy window also.
      */
+    hwnd = createDummyWindow((const char *)szAppName);
 
-    pfd.cRedBits   = (unsigned char) mx_ptr[RED_SIZE];
-    pfd.cGreenBits = (unsigned char) mx_ptr[GREEN_SIZE];
-    pfd.cBlueBits  = (unsigned char) mx_ptr[BLUE_SIZE];
-    pfd.cDepthBits = (unsigned char) mx_ptr[DEPTH_SIZE];
+    if (!hwnd) {
+	return -1;
+    }
+    hdc = GetDC(hwnd);
 
-    if (mx_ptr[DOUBLEBUFFER] == REQUIRED || mx_ptr[DOUBLEBUFFER] == PREFERRED)
-	dbVal = PFD_DOUBLEBUFFER;
-    else 
-	dbVal = PFD_DOUBLEBUFFER_DONTCARE;
+    pixelFormat = ChoosePixelFormat(hdc, &dummy_pfd);
 
-    sVal = 0;
-    if (mx_ptr[STEREO] == REQUIRED || mx_ptr[STEREO] == PREFERRED) {
-	sVal = PFD_STEREO;
-    } else {
-	sVal = 0;
+    if (pixelFormat<1) {
+	printErrorMessage("In NativeConfigTemplate : Failed in ChoosePixelFormat");
+	DestroyWindow(hwnd);
+	UnregisterClass(szAppName, (HINSTANCE)NULL);
+	return -1;
     }
+
+    SetPixelFormat(hdc, pixelFormat, NULL);
     
-    pfd.dwFlags = dbVal | sVal | PFD_SUPPORT_OPENGL;
-    pfd.cStencilBits = 2;
+    hrc = wglCreateContext(hdc);
+    if (!hrc) {
+	printErrorMessage("In NativeConfigTemplate : Failed in wglCreateContext");
+	DestroyWindow(hwnd);
+	UnregisterClass(szAppName, (HINSTANCE)NULL);
+	return -1;
+    }
     
-    if (mx_ptr[ANTIALIASING] == REQUIRED || mx_ptr[ANTIALIASING] == PREFERRED) {
-	pfd.cAccumRedBits   = 8;
-	pfd.cAccumGreenBits = 8;
-	pfd.cAccumBlueBits  = 8;
+    if (!wglMakeCurrent(hdc, hrc)) {
+	printErrorMessage("In NativeConfigTemplate : Failed in wglMakeCurrent");
+	ReleaseDC(hwnd, hdc);
+	wglDeleteContext(hrc);
+	DestroyWindow(hwnd);
+	UnregisterClass(szAppName, (HINSTANCE)NULL);
+	return -1;
     }
 
-    pf = findPixelFormatSwitchDoubleBufferAndStereo(&pfd, hdc, mx_ptr); 
+    pFormatInfo = newPixelFormatInfo(hdc);
+    
+    offScreenPFListPtr = (*env)->GetLongArrayElements(env, offScreenPFArray, NULL);
 
-    if (pf == -1) {
-	/* try disable stencil buffer */
-	pfd.cStencilBits = 0;
-	pf =  findPixelFormatSwitchDoubleBufferAndStereo(&pfd, hdc, mx_ptr);
-
-	if (pf == -1) {
-	    /* try disable accumulate buffer */
-	    if (mx_ptr[ANTIALIASING] == PREFERRED) {
-		pfd.cStencilBits = 2;
-		pfd.cAccumRedBits   = 0;
-		pfd.cAccumGreenBits = 0;
-		pfd.cAccumBlueBits  = 0;
-		pf =  findPixelFormatSwitchDoubleBufferAndStereo(&pfd, hdc, mx_ptr);
-
-		if (pf == -1) {
-		    /* try disable stencil buffer */
-		    pfd.cStencilBits = 0;
-		    pf =  findPixelFormatSwitchDoubleBufferAndStereo(&pfd, hdc, mx_ptr);
-		}
+    if(pFormatInfo->supportARB) {
+
+	mx_ptr = (*env)->GetIntArrayElements(env, attrList, NULL);
+	
+	/*
+	 * convert Java 3D values to WGL
+	 */
+	index = 0;
+	
+	wglAttrs[index++] = WGL_SUPPORT_OPENGL_ARB;
+	wglAttrs[index++] = TRUE;
+	wglAttrs[index++] = WGL_DRAW_TO_WINDOW_ARB; 
+	wglAttrs[index++] = TRUE;
+	wglAttrs[index++] = WGL_RED_BITS_ARB;
+	wglAttrs[index++] = mx_ptr[RED_SIZE];
+	wglAttrs[index++] = WGL_GREEN_BITS_ARB;
+	wglAttrs[index++] = mx_ptr[GREEN_SIZE];
+	wglAttrs[index++] = WGL_BLUE_BITS_ARB;
+	wglAttrs[index++] = mx_ptr[BLUE_SIZE];
+	wglAttrs[index++] = WGL_DEPTH_BITS_ARB;
+	wglAttrs[index++] = mx_ptr[DEPTH_SIZE];
+	
+	lastIndex = index;
+	
+	dbVal = mx_ptr[DOUBLEBUFFER];
+	sVal = mx_ptr[STEREO];
+	antialiasVal = mx_ptr[ANTIALIASING];
+	
+	(*env)->ReleaseIntArrayElements(env, attrList, mx_ptr, JNI_ABORT);
+	
+	if(pFormatInfo->supportPbuffer) {	
+	    
+	    wglAttrs[index++] = WGL_DRAW_TO_PBUFFER_ARB;
+	    wglAttrs[index++] = TRUE;
+	    
+	    /*
+	     * Terminate by 2 zeros to avoid driver bugs
+	     * that assume attributes always come in pairs.
+	     */
+	    wglAttrs[index] = 0;
+	    wglAttrs[index+1] = 0;
+
+  	    pFormatInfo->onScreenPFormat = find_DB_AA_S_PixelFormat( hdc, pFormatInfo,
+								     wglAttrs, sVal, dbVal, 
+								     antialiasVal, index);
+	    
+	    if(pFormatInfo->onScreenPFormat >= 0) {
+		
+		/* Since the return pixel format support pbuffer,
+		   copy OnScreenPFormat to offScreenPFormat */
+		pFormatInfo->offScreenPFormat = pFormatInfo->onScreenPFormat;
+		offScreenPFListPtr[0] = (jlong) pFormatInfo;
+		(*env)->ReleaseLongArrayElements(env, offScreenPFArray, offScreenPFListPtr, 0);
+
+		/* Destroy all dummy objects */
+		ReleaseDC(hwnd, hdc);
+		wglDeleteContext(hrc);
+		DestroyWindow(hwnd);
+		UnregisterClass(szAppName, (HINSTANCE)NULL);
+
+		return (jint) pFormatInfo->onScreenPFormat;
 	    }
+	    
 	}
+
+	/* Create a onScreen without Pbuffer */
+	index = lastIndex;
+	
+	/*
+	 * Terminate by 2 zeros to avoid driver bugs
+	 * that assume attributes always come in pairs.
+	 */
+	wglAttrs[index] = 0;
+	wglAttrs[index+1] = 0;
+	
+	pFormatInfo->onScreenPFormat = find_DB_AA_S_PixelFormat( hdc, pFormatInfo,
+								 wglAttrs, sVal, dbVal, 
+								 antialiasVal, index);
+	
+    } 
+    
+    
+    if(pFormatInfo->onScreenPFormat < 0) { /* Fallback to use standard ChoosePixelFormat. */
+	/* fprintf(stderr, "Fallback to use standard ChoosePixelFormat.\n"); */
+	
+	pFormatInfo->onScreenPFormat =  (jint) chooseSTDPixelFormat( env, screen,
+								     attrList, hdc, GL_FALSE);
+	
     }
     
-    DeleteDC(hdc);
+    if(pFormatInfo->onScreenPFormat < 0) {
+	printErrorMessage("In NativeConfigTemplate : Can't choose a onScreen pixel format");
+	
+	offScreenPFListPtr[0] = (jlong) pFormatInfo; 
+	(*env)->ReleaseLongArrayElements(env, offScreenPFArray, offScreenPFListPtr, 0);
 
-    (*env)->ReleaseIntArrayElements(env, attrList, mx_ptr, JNI_ABORT);
-    return pf;
+	/* We are done with dummy context, so destroy all dummy objects */
+	ReleaseDC(hwnd, hdc);
+	wglDeleteContext(hrc);
+	DestroyWindow(hwnd);
+	UnregisterClass(szAppName, (HINSTANCE)NULL);
+
+	return -1;
+    }    
+
+    /* Create offScreen with standard ChoosePixelFormat */
+    pFormatInfo->offScreenPFormat = chooseSTDPixelFormat( env, screen, attrList, hdc, GL_TRUE);
+
+    /* fprintf(stderr, "********* offScreenPFormat = %d\n", pFormatInfo->offScreenPFormat ); */
+    
+    offScreenPFListPtr[0] = (jlong) pFormatInfo;
+    (*env)->ReleaseLongArrayElements(env, offScreenPFArray, offScreenPFListPtr, 0);
+
+    /* We are done with dummy context, so destroy all dummy objects */
+    ReleaseDC(hwnd, hdc);
+    wglDeleteContext(hrc);
+    DestroyWindow(hwnd);
+    UnregisterClass(szAppName, (HINSTANCE)NULL);
+
+    return (jint) pFormatInfo->onScreenPFormat;
+}
+
+
+JNIEXPORT 
+void JNICALL Java_javax_media_j3d_NativeConfigTemplate3D_freePixelFormatInfo(
+     JNIEnv *env,
+     jclass  class,	/* this is a static native method */
+     jlong   pFormatInfo)
+{
+    PixelFormatInfo *pfInfo = (PixelFormatInfo *) pFormatInfo;
+    if(pfInfo->supportedExtensions != NULL) {
+	free(pfInfo->supportedExtensions);
+	pfInfo->supportedExtensions = NULL;
+    }
+    pfInfo->wglChoosePixelFormatARB = NULL; 
+    pfInfo->wglGetPixelFormatAttribivARB = NULL;
+    pfInfo->wglCreatePbufferARB = NULL;
+    pfInfo->wglGetPbufferDCARB = NULL;
+    pfInfo->wglReleasePbufferDCARB = NULL;
+    pfInfo->wglDestroyPbufferARB = NULL;
+    pfInfo->wglQueryPbufferARB = NULL;
+    free(pfInfo);
 }
 
 
diff --git a/src/native/ogl/NativeScreenInfo.c b/src/native/ogl/NativeScreenInfo.c
index 23ad8b8..0c588c6 100644
--- a/src/native/ogl/NativeScreenInfo.c
+++ b/src/native/ogl/NativeScreenInfo.c
@@ -18,6 +18,7 @@
 
 #include <jni.h>
 #include <math.h>
+#include <stdio.h>
 
 #include "gldefs.h"
 
@@ -125,4 +126,108 @@ Java_javax_media_j3d_NativeScreenInfo_queryGLX13(
     return JNI_TRUE;
 }
 
-#endif
+#endif /* Solaris and Linux */
+
+
+#ifdef WIN32
+
+extern HWND createDummyWindow(const char* szAppName);
+extern void printErrorMessage(char *message);
+extern PIXELFORMATDESCRIPTOR getDummyPFD();
+extern BOOL isSupportedWGL(const char *extensions, const char *extension_string);    
+
+/*
+ * Class:     javax_media_j3d_NativeScreenInfo
+ * Method:    queryWglARB
+ * Signature: (J)Z
+ */
+JNIEXPORT jboolean JNICALL
+Java_javax_media_j3d_NativeScreenInfo_queryWglARB(
+    JNIEnv *env,
+    jclass cls)
+{
+
+    static const BOOL debug = TRUE;
+    static char szAppName[] = "Choose Pixel Format";
+
+    PIXELFORMATDESCRIPTOR dummy_pfd = getDummyPFD();    
+    HWND hwnd;
+    HGLRC hrc;
+    HDC   hdc;
+    int pixelFormat;
+    const char* supportedExtensions;
+    
+    /* declare function pointers for WGL functions */
+    PFNWGLGETEXTENSIONSSTRINGARBPROC  wglGetExtensionsStringARB = NULL;
+    
+    /*
+     * Select any pixel format and bound current context to
+     * it so that we can get the wglChoosePixelFormatARB entry point.
+     * Otherwise wglxxx entry point will always return null.
+     * That's why we need to create a dummy window also.
+     */
+    hwnd = createDummyWindow((const char *)szAppName);
+
+    if (!hwnd) {
+	return JNI_FALSE;
+    }
+    hdc = GetDC(hwnd);
+
+    pixelFormat = ChoosePixelFormat(hdc, &dummy_pfd);
+    
+    if (pixelFormat<1) {
+	printErrorMessage("Failed in ChoosePixelFormat");
+	DestroyWindow(hwnd);
+	UnregisterClass(szAppName, (HINSTANCE)NULL);
+	return JNI_FALSE;
+    }
+
+    SetPixelFormat(hdc, pixelFormat, NULL);
+    
+    hrc = wglCreateContext(hdc);
+    if (!hrc) {
+	printErrorMessage("Failed in wglCreateContext");
+	DestroyWindow(hwnd);
+	UnregisterClass(szAppName, (HINSTANCE)NULL);
+	return JNI_FALSE;
+    }
+    
+    if (!wglMakeCurrent(hdc, hrc)) {
+	printErrorMessage("Failed in wglMakeCurrent");
+	ReleaseDC(hwnd, hdc);
+	wglDeleteContext(hrc);
+	DestroyWindow(hwnd);
+	UnregisterClass(szAppName, (HINSTANCE)NULL);
+	return JNI_FALSE;
+    }
+
+    wglGetExtensionsStringARB = (PFNWGLGETEXTENSIONSSTRINGARBPROC)
+	wglGetProcAddress("wglGetExtensionsStringARB");
+    if (wglGetExtensionsStringARB == NULL) {
+	/* printErrorMessage("wglGetExtensionsStringARB not support !\n"); */
+	return JNI_FALSE;
+    }
+    else {
+
+	/* get the list of supported extensions */
+	supportedExtensions = (const char *)wglGetExtensionsStringARB(hdc);    
+	
+	if (debug) {
+	    fprintf(stderr, "WGL Supported extensions: %s.\n", supportedExtensions);    
+	}
+
+	if(!isSupportedWGL(supportedExtensions, "WGL_ARB_pixel_format")) {
+	    fprintf(stderr, "WGL_ARB_pixel_format not supported.\n");
+	    return JNI_FALSE;
+	}
+    }
+    
+    ReleaseDC(hwnd, hdc);
+    wglDeleteContext(hrc);
+    DestroyWindow(hwnd);
+    UnregisterClass(szAppName, (HINSTANCE)NULL);
+    return JNI_TRUE;
+
+    
+}
+#endif /*  WIN32 */
diff --git a/src/native/ogl/gl_1_2.h b/src/native/ogl/gl_1_2.h
index b540d3e..dd33949 100644
--- a/src/native/ogl/gl_1_2.h
+++ b/src/native/ogl/gl_1_2.h
@@ -93,16 +93,12 @@ extern "C" {
 #ifndef GL_ARB_texture_border_clamp
 #define GL_CLAMP_TO_BORDER_ARB            0x812D
 #endif
-
-#ifndef GL_ARB_multisample
+    
 #if defined(SOLARIS) || defined(__linux__)
+#ifndef GL_ARB_multisample
 #define GLX_SAMPLE_BUFFERS_ARB            100000
 #define GLX_SAMPLES_ARB                   100001
-#endif
-#ifdef  WIN32    
-#define WGL_SAMPLE_BUFFERS_ARB            0x2041
-#define WGL_SAMPLES_ARB                   0x2042
-#endif
+
 #define MULTISAMPLE_ARB                   0x809D
 #define SAMPLE_ALPHA_TO_COVERATE_ARB      0x809E
 #define SAMPLE_ALPHA_TO_ONE_ARB           0x809F
@@ -113,76 +109,12 @@ extern "C" {
 #define SAMPLE_COVERAGE_VALUE_ARB         0x80AA
 #define SAMPLE_COVERAGE_INVERT_ARB        0x80AB   
 #endif /* GL_ARB_multisample */
+#endif /* SOLARIS */
 
 #ifndef MULTISAMPLE_ARB
 #define MULTISAMPLE_ARB                   0x809D
 #endif
-    
-#ifdef WIN32
-
-/* define those EXT_pixel_format enums from 3DLabs register developer web site */
-#ifndef WGL_SUPPORT_OPENGL_EXT
-#define WGL_NUMBER_PIXEL_FORMATS_EXT                  0x2000
-#define WGL_DRAW_TO_WINDOW_EXT                        0x2001
-#define WGL_DRAW_TO_BITMAP_EXT                        0x2002
-#define WGL_ACCELERATION_EXT                          0x2003
-#define WGL_NEED_PALETTE_EXT                          0x2004
-#define WGL_NEED_SYSTEM_PALETTE_EXT                   0x2005
-#define WGL_SWAP_LAYER_BUFFERS_EXT                    0x2006
-#define WGL_SWAP_METHOD_EXT                           0x2007
-#define WGL_NUMBER_OVERLAYS_EXT                       0x2008
-#define WGL_NUMBER_UNDERLAYS_EXT                      0x2009
-#define WGL_TRANSPARENT_EXT                           0x200A
-#define WGL_TRANSPARENT_VALUE_EXT                     0x200B
-#define WGL_SHARE_DEPTH_EXT                           0x200C
-#define WGL_SHARE_STENCIL_EXT                         0x200D
-#define WGL_SHARE_ACCUM_EXT                           0x200E
-#define WGL_SUPPORT_GDI_EXT                           0x200F
-#define WGL_SUPPORT_OPENGL_EXT                        0x2010
-#define WGL_DOUBLE_BUFFER_EXT                         0x2011
-#define WGL_STEREO_EXT                                0x2012
-#define WGL_PIXEL_TYPE_EXT                            0x2013
-#define WGL_COLOR_BITS_EXT                            0x2014
-#define WGL_RED_BITS_EXT                              0x2015
-#define WGL_RED_SHIFT_EXT                             0x2016
-#define WGL_GREEN_BITS_EXT                            0x2017
-#define WGL_GREEN_SHIFT_EXT                           0x2018
-#define WGL_BLUE_BITS_EXT                             0x2019
-#define WGL_BLUE_SHIFT_EXT                            0x201A
-#define WGL_ALPHA_BITS_EXT                            0x201B
-#define WGL_ALPHA_SHIFT_EXT                           0x201C
-#define WGL_ACCUM_BITS_EXT                            0x201D
-#define WGL_ACCUM_RED_BITS_EXT                        0x201E
-#define WGL_ACCUM_GREEN_BITS_EXT                      0x201F
-#define WGL_ACCUM_BLUE_BITS_EXT                       0x2020
-#define WGL_ACCUM_ALPHA_BITS_EXT                      0x2021
-#define WGL_DEPTH_BITS_EXT                            0x2022
-#define WGL_STENCIL_BITS_EXT                          0x2023
-#define WGL_AUX_BUFFERS_EXT                           0x2024
-#define WGL_NO_ACCELERATION_EXT                       0x2025
-#define WGL_GENERIC_ACCELERATION_EXT                  0x2026
-#define WGL_FULL_ACCELERATION_EXT                     0x2027
-#define WGL_SWAP_EXCHANGE_EXT                         0x2028
-#define WGL_SWAP_COPY_EXT                             0x2029
-#define WGL_SWAP_UNDEFINED_EXT                        0x202A
-#define WGL_TYPE_RGBA_EXT                             0x202B
-#define WGL_TYPE_COLORINDEX_EXT                       0x202C
-#endif /*  WGL_SUPPORT_OPENGL_EXT */
-
-/* define those ARB_pixel_format enums */
-#ifndef WGL_SUPPORT_OPENGL_ARB
-#define WGL_NUMBER_PIXEL_FORMATS_ARB    0x2000
-#define WGL_SUPPORT_OPENGL_ARB          0x2010
-#define WGL_DRAW_TO_WINDOW_ARB          0x2001
-#define WGL_DOUBLE_BUFFER_ARB           0x2011
-#define WGL_STEREO_ARB                  0x2012
-#define WGL_RED_BITS_ARB                0x2015
-#define WGL_GREEN_BITS_ARB              0x2017
-#define WGL_BLUE_BITS_ARB               0x2019
-#define WGL_DEPTH_BITS_ARB              0x2022
-#endif /*  WGL_SUPPORT_OPENGL_ARB */
-
-#endif /* WIN32 */
+
 
 #ifdef __cplusplus
 }
diff --git a/src/native/ogl/gldefs.h b/src/native/ogl/gldefs.h
index 6658201..a79762a 100644
--- a/src/native/ogl/gldefs.h
+++ b/src/native/ogl/gldefs.h
@@ -72,6 +72,7 @@
 
 #ifndef D3D
 #include <GL/gl.h>
+#include "wglext.h"
 #include "gl_1_2.h"
 #include "glext.h"
 #endif
@@ -389,27 +390,6 @@ extern int glXgetVideoResizeSUN( Display *, GLXDrawable, float *);
 #define APIENTRY
 #endif
 
-#ifdef WIN32
-
-/* declare function prototype for WGL related functions*/
-typedef const char * (APIENTRY * PFNWGLGETEXTENSIONSSTRINGEXTPROC) (HDC hdc);
-typedef BOOL (APIENTRY * PFNWGLCHOOSEPIXELFORMATEXTPROC)(HDC hdc,
-							 const int *piAttribIList,
-							 const FLOAT *pfAttriFList,
-							 UINT nMaxFormats,
-							 int *piFormats,
-							 UINT *nNumFormats);
-typedef BOOL (APIENTRY * PFNWGLGETPIXELFORMATATTRIBIVEXTPROC)(HDC hdc,
-							      int iPixelFormat,
-							      int iLayerPlane,
-							      UINT nAttributes,
-							      const int *piAttributes,
-							      int *piValues);
-
-	      
-
-#endif /* WIN32 */
-
 /* define function prototypes */
 typedef void (APIENTRY * MYPFNGLBLENDCOLORPROC) (GLclampf red, GLclampf green,
 						GLclampf blue, GLclampf alpha);
@@ -641,5 +621,48 @@ typedef struct {
     MYPFNGLTEXFILTERFUNCSGI glTexFilterFuncSGIS;
 } GraphicsContextPropertiesInfo;
 
-#endif /* J3D_BUILDVERTICES */
+
+#ifdef WIN32
+
+/* define the structure to hold the info. of a pixel format */
+typedef struct PixelFormatInfoRec PixelFormatInfo;
+
+struct PixelFormatInfoRec {
+    int onScreenPFormat;        /* PixelFormat for onScreen */
+    int offScreenPFormat;       /* PixelFormat for offScreen */
+    GLboolean  supportARB;	/* TRUE if ARB is supported */
+    GLboolean  supportPbuffer;  /* TRUE if Pbuffer is supported */
+    char* supportedExtensions;  /* list of supported ARB extensions */
+    /* handle to ARB functions */
+    PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormatARB; 
+    PFNWGLGETPIXELFORMATATTRIBIVARBPROC wglGetPixelFormatAttribivARB;
+    PFNWGLCREATEPBUFFERARBPROC  wglCreatePbufferARB;
+    PFNWGLGETPBUFFERDCARBPROC wglGetPbufferDCARB;
+    PFNWGLRELEASEPBUFFERDCARBPROC wglReleasePbufferDCARB;
+    PFNWGLDESTROYPBUFFERARBPROC wglDestroyPbufferARB;
+    PFNWGLQUERYPBUFFERARBPROC wglQueryPbufferARB;
+    
+    /* TODO include multi-samples buffer */
+
+};
+
+#endif /* WIN32 */
+
+/* define the structure to hold the info. of a offScreen buffer */
+typedef struct OffScreenBufferInfoRec OffScreenBufferInfo;
+
+struct OffScreenBufferInfoRec {
+    GLboolean isPbuffer; /* GL_TRUE if Pbuffer is used. */
+
+#if defined(SOLARIS) || defined(__linux__)
+#endif
+    
+#ifdef WIN32
+    HPBUFFERARB hpbuf;  /* Handle to the Pbuffer */
+#endif /* WIN32 */
+
+};
+
+
+#endif /* D3D */
 #endif /* _Java3D_gldefs_h_ */
diff --git a/src/native/ogl/wglext.h b/src/native/ogl/wglext.h
new file mode 100644
index 0000000..d1ab334
--- /dev/null
+++ b/src/native/ogl/wglext.h
@@ -0,0 +1,619 @@
+#ifndef __wglext_h_
+#define __wglext_h_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+** License Applicability. Except to the extent portions of this file are
+** made subject to an alternative license as permitted in the SGI Free
+** Software License B, Version 1.1 (the "License"), the contents of this
+** file are subject only to the provisions of the License. You may not use
+** this file except in compliance with the License. You may obtain a copy
+** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
+** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
+** 
+** http://oss.sgi.com/projects/FreeB
+** 
+** Note that, as provided in the License, the Software is distributed on an
+** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
+** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
+** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
+** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
+** 
+** Original Code. The Original Code is: OpenGL Sample Implementation,
+** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
+** Inc. The Original Code is Copyright (c) 1991-2004 Silicon Graphics, Inc.
+** Copyright in any portions created by third parties is as indicated
+** elsewhere herein. All Rights Reserved.
+** 
+** Additional Notice Provisions: This software was created using the
+** OpenGL(R) version 1.2.1 Sample Implementation published by SGI, but has
+** not been independently verified as being compliant with the OpenGL(R)
+** version 1.2.1 Specification.
+*/
+
+#if defined(_WIN32) && !defined(APIENTRY) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__)
+#define WIN32_LEAN_AND_MEAN 1
+#include <windows.h>
+#endif
+
+#ifndef APIENTRY
+#define APIENTRY
+#endif
+#ifndef APIENTRYP
+#define APIENTRYP APIENTRY *
+#endif
+#ifndef GLAPI
+#define GLAPI extern
+#endif
+
+/*************************************************************/
+
+/* Header file version number */
+/* wglext.h last updated 2004/07/26 */
+/* Current version at http://oss.sgi.com/projects/ogl-sample/registry/ */
+#define WGL_WGLEXT_VERSION 5
+
+#ifndef WGL_ARB_buffer_region
+#define WGL_FRONT_COLOR_BUFFER_BIT_ARB 0x00000001
+#define WGL_BACK_COLOR_BUFFER_BIT_ARB  0x00000002
+#define WGL_DEPTH_BUFFER_BIT_ARB       0x00000004
+#define WGL_STENCIL_BUFFER_BIT_ARB     0x00000008
+#endif
+
+#ifndef WGL_ARB_multisample
+#define WGL_SAMPLE_BUFFERS_ARB         0x2041
+#define WGL_SAMPLES_ARB                0x2042
+#endif
+
+#ifndef WGL_ARB_extensions_string
+#endif
+
+#ifndef WGL_ARB_pixel_format
+#define WGL_NUMBER_PIXEL_FORMATS_ARB   0x2000
+#define WGL_DRAW_TO_WINDOW_ARB         0x2001
+#define WGL_DRAW_TO_BITMAP_ARB         0x2002
+#define WGL_ACCELERATION_ARB           0x2003
+#define WGL_NEED_PALETTE_ARB           0x2004
+#define WGL_NEED_SYSTEM_PALETTE_ARB    0x2005
+#define WGL_SWAP_LAYER_BUFFERS_ARB     0x2006
+#define WGL_SWAP_METHOD_ARB            0x2007
+#define WGL_NUMBER_OVERLAYS_ARB        0x2008
+#define WGL_NUMBER_UNDERLAYS_ARB       0x2009
+#define WGL_TRANSPARENT_ARB            0x200A
+#define WGL_TRANSPARENT_RED_VALUE_ARB  0x2037
+#define WGL_TRANSPARENT_GREEN_VALUE_ARB 0x2038
+#define WGL_TRANSPARENT_BLUE_VALUE_ARB 0x2039
+#define WGL_TRANSPARENT_ALPHA_VALUE_ARB 0x203A
+#define WGL_TRANSPARENT_INDEX_VALUE_ARB 0x203B
+#define WGL_SHARE_DEPTH_ARB            0x200C
+#define WGL_SHARE_STENCIL_ARB          0x200D
+#define WGL_SHARE_ACCUM_ARB            0x200E
+#define WGL_SUPPORT_GDI_ARB            0x200F
+#define WGL_SUPPORT_OPENGL_ARB         0x2010
+#define WGL_DOUBLE_BUFFER_ARB          0x2011
+#define WGL_STEREO_ARB                 0x2012
+#define WGL_PIXEL_TYPE_ARB             0x2013
+#define WGL_COLOR_BITS_ARB             0x2014
+#define WGL_RED_BITS_ARB               0x2015
+#define WGL_RED_SHIFT_ARB              0x2016
+#define WGL_GREEN_BITS_ARB             0x2017
+#define WGL_GREEN_SHIFT_ARB            0x2018
+#define WGL_BLUE_BITS_ARB              0x2019
+#define WGL_BLUE_SHIFT_ARB             0x201A
+#define WGL_ALPHA_BITS_ARB             0x201B
+#define WGL_ALPHA_SHIFT_ARB            0x201C
+#define WGL_ACCUM_BITS_ARB             0x201D
+#define WGL_ACCUM_RED_BITS_ARB         0x201E
+#define WGL_ACCUM_GREEN_BITS_ARB       0x201F
+#define WGL_ACCUM_BLUE_BITS_ARB        0x2020
+#define WGL_ACCUM_ALPHA_BITS_ARB       0x2021
+#define WGL_DEPTH_BITS_ARB             0x2022
+#define WGL_STENCIL_BITS_ARB           0x2023
+#define WGL_AUX_BUFFERS_ARB            0x2024
+#define WGL_NO_ACCELERATION_ARB        0x2025
+#define WGL_GENERIC_ACCELERATION_ARB   0x2026
+#define WGL_FULL_ACCELERATION_ARB      0x2027
+#define WGL_SWAP_EXCHANGE_ARB          0x2028
+#define WGL_SWAP_COPY_ARB              0x2029
+#define WGL_SWAP_UNDEFINED_ARB         0x202A
+#define WGL_TYPE_RGBA_ARB              0x202B
+#define WGL_TYPE_COLORINDEX_ARB        0x202C
+#endif
+
+#ifndef WGL_ARB_make_current_read
+#define ERROR_INVALID_PIXEL_TYPE_ARB   0x2043
+#define ERROR_INCOMPATIBLE_DEVICE_CONTEXTS_ARB 0x2054
+#endif
+
+#ifndef WGL_ARB_pbuffer
+#define WGL_DRAW_TO_PBUFFER_ARB        0x202D
+#define WGL_MAX_PBUFFER_PIXELS_ARB     0x202E
+#define WGL_MAX_PBUFFER_WIDTH_ARB      0x202F
+#define WGL_MAX_PBUFFER_HEIGHT_ARB     0x2030
+#define WGL_PBUFFER_LARGEST_ARB        0x2033
+#define WGL_PBUFFER_WIDTH_ARB          0x2034
+#define WGL_PBUFFER_HEIGHT_ARB         0x2035
+#define WGL_PBUFFER_LOST_ARB           0x2036
+#endif
+
+#ifndef WGL_ARB_render_texture
+#define WGL_BIND_TO_TEXTURE_RGB_ARB    0x2070
+#define WGL_BIND_TO_TEXTURE_RGBA_ARB   0x2071
+#define WGL_TEXTURE_FORMAT_ARB         0x2072
+#define WGL_TEXTURE_TARGET_ARB         0x2073
+#define WGL_MIPMAP_TEXTURE_ARB         0x2074
+#define WGL_TEXTURE_RGB_ARB            0x2075
+#define WGL_TEXTURE_RGBA_ARB           0x2076
+#define WGL_NO_TEXTURE_ARB             0x2077
+#define WGL_TEXTURE_CUBE_MAP_ARB       0x2078
+#define WGL_TEXTURE_1D_ARB             0x2079
+#define WGL_TEXTURE_2D_ARB             0x207A
+#define WGL_MIPMAP_LEVEL_ARB           0x207B
+#define WGL_CUBE_MAP_FACE_ARB          0x207C
+#define WGL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB 0x207D
+#define WGL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB 0x207E
+#define WGL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB 0x207F
+#define WGL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB 0x2080
+#define WGL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB 0x2081
+#define WGL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB 0x2082
+#define WGL_FRONT_LEFT_ARB             0x2083
+#define WGL_FRONT_RIGHT_ARB            0x2084
+#define WGL_BACK_LEFT_ARB              0x2085
+#define WGL_BACK_RIGHT_ARB             0x2086
+#define WGL_AUX0_ARB                   0x2087
+#define WGL_AUX1_ARB                   0x2088
+#define WGL_AUX2_ARB                   0x2089
+#define WGL_AUX3_ARB                   0x208A
+#define WGL_AUX4_ARB                   0x208B
+#define WGL_AUX5_ARB                   0x208C
+#define WGL_AUX6_ARB                   0x208D
+#define WGL_AUX7_ARB                   0x208E
+#define WGL_AUX8_ARB                   0x208F
+#define WGL_AUX9_ARB                   0x2090
+#endif
+
+#ifndef WGL_EXT_make_current_read
+#define ERROR_INVALID_PIXEL_TYPE_EXT   0x2043
+#endif
+
+#ifndef WGL_EXT_pixel_format
+#define WGL_NUMBER_PIXEL_FORMATS_EXT   0x2000
+#define WGL_DRAW_TO_WINDOW_EXT         0x2001
+#define WGL_DRAW_TO_BITMAP_EXT         0x2002
+#define WGL_ACCELERATION_EXT           0x2003
+#define WGL_NEED_PALETTE_EXT           0x2004
+#define WGL_NEED_SYSTEM_PALETTE_EXT    0x2005
+#define WGL_SWAP_LAYER_BUFFERS_EXT     0x2006
+#define WGL_SWAP_METHOD_EXT            0x2007
+#define WGL_NUMBER_OVERLAYS_EXT        0x2008
+#define WGL_NUMBER_UNDERLAYS_EXT       0x2009
+#define WGL_TRANSPARENT_EXT            0x200A
+#define WGL_TRANSPARENT_VALUE_EXT      0x200B
+#define WGL_SHARE_DEPTH_EXT            0x200C
+#define WGL_SHARE_STENCIL_EXT          0x200D
+#define WGL_SHARE_ACCUM_EXT            0x200E
+#define WGL_SUPPORT_GDI_EXT            0x200F
+#define WGL_SUPPORT_OPENGL_EXT         0x2010
+#define WGL_DOUBLE_BUFFER_EXT          0x2011
+#define WGL_STEREO_EXT                 0x2012
+#define WGL_PIXEL_TYPE_EXT             0x2013
+#define WGL_COLOR_BITS_EXT             0x2014
+#define WGL_RED_BITS_EXT               0x2015
+#define WGL_RED_SHIFT_EXT              0x2016
+#define WGL_GREEN_BITS_EXT             0x2017
+#define WGL_GREEN_SHIFT_EXT            0x2018
+#define WGL_BLUE_BITS_EXT              0x2019
+#define WGL_BLUE_SHIFT_EXT             0x201A
+#define WGL_ALPHA_BITS_EXT             0x201B
+#define WGL_ALPHA_SHIFT_EXT            0x201C
+#define WGL_ACCUM_BITS_EXT             0x201D
+#define WGL_ACCUM_RED_BITS_EXT         0x201E
+#define WGL_ACCUM_GREEN_BITS_EXT       0x201F
+#define WGL_ACCUM_BLUE_BITS_EXT        0x2020
+#define WGL_ACCUM_ALPHA_BITS_EXT       0x2021
+#define WGL_DEPTH_BITS_EXT             0x2022
+#define WGL_STENCIL_BITS_EXT           0x2023
+#define WGL_AUX_BUFFERS_EXT            0x2024
+#define WGL_NO_ACCELERATION_EXT        0x2025
+#define WGL_GENERIC_ACCELERATION_EXT   0x2026
+#define WGL_FULL_ACCELERATION_EXT      0x2027
+#define WGL_SWAP_EXCHANGE_EXT          0x2028
+#define WGL_SWAP_COPY_EXT              0x2029
+#define WGL_SWAP_UNDEFINED_EXT         0x202A
+#define WGL_TYPE_RGBA_EXT              0x202B
+#define WGL_TYPE_COLORINDEX_EXT        0x202C
+#endif
+
+#ifndef WGL_EXT_pbuffer
+#define WGL_DRAW_TO_PBUFFER_EXT        0x202D
+#define WGL_MAX_PBUFFER_PIXELS_EXT     0x202E
+#define WGL_MAX_PBUFFER_WIDTH_EXT      0x202F
+#define WGL_MAX_PBUFFER_HEIGHT_EXT     0x2030
+#define WGL_OPTIMAL_PBUFFER_WIDTH_EXT  0x2031
+#define WGL_OPTIMAL_PBUFFER_HEIGHT_EXT 0x2032
+#define WGL_PBUFFER_LARGEST_EXT        0x2033
+#define WGL_PBUFFER_WIDTH_EXT          0x2034
+#define WGL_PBUFFER_HEIGHT_EXT         0x2035
+#endif
+
+#ifndef WGL_EXT_depth_float
+#define WGL_DEPTH_FLOAT_EXT            0x2040
+#endif
+
+#ifndef WGL_3DFX_multisample
+#define WGL_SAMPLE_BUFFERS_3DFX        0x2060
+#define WGL_SAMPLES_3DFX               0x2061
+#endif
+
+#ifndef WGL_EXT_multisample
+#define WGL_SAMPLE_BUFFERS_EXT         0x2041
+#define WGL_SAMPLES_EXT                0x2042
+#endif
+
+#ifndef WGL_I3D_digital_video_control
+#define WGL_DIGITAL_VIDEO_CURSOR_ALPHA_FRAMEBUFFER_I3D 0x2050
+#define WGL_DIGITAL_VIDEO_CURSOR_ALPHA_VALUE_I3D 0x2051
+#define WGL_DIGITAL_VIDEO_CURSOR_INCLUDED_I3D 0x2052
+#define WGL_DIGITAL_VIDEO_GAMMA_CORRECTED_I3D 0x2053
+#endif
+
+#ifndef WGL_I3D_gamma
+#define WGL_GAMMA_TABLE_SIZE_I3D       0x204E
+#define WGL_GAMMA_EXCLUDE_DESKTOP_I3D  0x204F
+#endif
+
+#ifndef WGL_I3D_genlock
+#define WGL_GENLOCK_SOURCE_MULTIVIEW_I3D 0x2044
+#define WGL_GENLOCK_SOURCE_EXTENAL_SYNC_I3D 0x2045
+#define WGL_GENLOCK_SOURCE_EXTENAL_FIELD_I3D 0x2046
+#define WGL_GENLOCK_SOURCE_EXTENAL_TTL_I3D 0x2047
+#define WGL_GENLOCK_SOURCE_DIGITAL_SYNC_I3D 0x2048
+#define WGL_GENLOCK_SOURCE_DIGITAL_FIELD_I3D 0x2049
+#define WGL_GENLOCK_SOURCE_EDGE_FALLING_I3D 0x204A
+#define WGL_GENLOCK_SOURCE_EDGE_RISING_I3D 0x204B
+#define WGL_GENLOCK_SOURCE_EDGE_BOTH_I3D 0x204C
+#endif
+
+#ifndef WGL_I3D_image_buffer
+#define WGL_IMAGE_BUFFER_MIN_ACCESS_I3D 0x00000001
+#define WGL_IMAGE_BUFFER_LOCK_I3D      0x00000002
+#endif
+
+#ifndef WGL_I3D_swap_frame_lock
+#endif
+
+#ifndef WGL_NV_render_depth_texture
+#define WGL_BIND_TO_TEXTURE_DEPTH_NV   0x20A3
+#define WGL_BIND_TO_TEXTURE_RECTANGLE_DEPTH_NV 0x20A4
+#define WGL_DEPTH_TEXTURE_FORMAT_NV    0x20A5
+#define WGL_TEXTURE_DEPTH_COMPONENT_NV 0x20A6
+#define WGL_DEPTH_COMPONENT_NV         0x20A7
+#endif
+
+#ifndef WGL_NV_render_texture_rectangle
+#define WGL_BIND_TO_TEXTURE_RECTANGLE_RGB_NV 0x20A0
+#define WGL_BIND_TO_TEXTURE_RECTANGLE_RGBA_NV 0x20A1
+#define WGL_TEXTURE_RECTANGLE_NV       0x20A2
+#endif
+
+#ifndef WGL_ATI_pixel_format_float
+#define WGL_TYPE_RGBA_FLOAT_ATI        0x21A0
+#endif
+
+#ifndef WGL_NV_float_buffer
+#define WGL_FLOAT_COMPONENTS_NV        0x20B0
+#define WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_R_NV 0x20B1
+#define WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RG_NV 0x20B2
+#define WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGB_NV 0x20B3
+#define WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGBA_NV 0x20B4
+#define WGL_TEXTURE_FLOAT_R_NV         0x20B5
+#define WGL_TEXTURE_FLOAT_RG_NV        0x20B6
+#define WGL_TEXTURE_FLOAT_RGB_NV       0x20B7
+#define WGL_TEXTURE_FLOAT_RGBA_NV      0x20B8
+#endif
+
+
+/*************************************************************/
+
+#ifndef WGL_ARB_pbuffer
+DECLARE_HANDLE(HPBUFFERARB);
+#endif
+#ifndef WGL_EXT_pbuffer
+DECLARE_HANDLE(HPBUFFEREXT);
+#endif
+
+#ifndef WGL_ARB_buffer_region
+#define WGL_ARB_buffer_region 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern HANDLE WINAPI wglCreateBufferRegionARB (HDC, int, UINT);
+extern VOID WINAPI wglDeleteBufferRegionARB (HANDLE);
+extern BOOL WINAPI wglSaveBufferRegionARB (HANDLE, int, int, int, int);
+extern BOOL WINAPI wglRestoreBufferRegionARB (HANDLE, int, int, int, int, int, int);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef HANDLE (WINAPI * PFNWGLCREATEBUFFERREGIONARBPROC) (HDC hDC, int iLayerPlane, UINT uType);
+typedef VOID (WINAPI * PFNWGLDELETEBUFFERREGIONARBPROC) (HANDLE hRegion);
+typedef BOOL (WINAPI * PFNWGLSAVEBUFFERREGIONARBPROC) (HANDLE hRegion, int x, int y, int width, int height);
+typedef BOOL (WINAPI * PFNWGLRESTOREBUFFERREGIONARBPROC) (HANDLE hRegion, int x, int y, int width, int height, int xSrc, int ySrc);
+#endif
+
+#ifndef WGL_ARB_multisample
+#define WGL_ARB_multisample 1
+#endif
+
+#ifndef WGL_ARB_extensions_string
+#define WGL_ARB_extensions_string 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern const char * WINAPI wglGetExtensionsStringARB (HDC);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef const char * (WINAPI * PFNWGLGETEXTENSIONSSTRINGARBPROC) (HDC hdc);
+#endif
+
+#ifndef WGL_ARB_pixel_format
+#define WGL_ARB_pixel_format 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern BOOL WINAPI wglGetPixelFormatAttribivARB (HDC, int, int, UINT, const int *, int *);
+extern BOOL WINAPI wglGetPixelFormatAttribfvARB (HDC, int, int, UINT, const int *, FLOAT *);
+extern BOOL WINAPI wglChoosePixelFormatARB (HDC, const int *, const FLOAT *, UINT, int *, UINT *);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef BOOL (WINAPI * PFNWGLGETPIXELFORMATATTRIBIVARBPROC) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, int *piValues);
+typedef BOOL (WINAPI * PFNWGLGETPIXELFORMATATTRIBFVARBPROC) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, FLOAT *pfValues);
+typedef BOOL (WINAPI * PFNWGLCHOOSEPIXELFORMATARBPROC) (HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
+#endif
+
+#ifndef WGL_ARB_make_current_read
+#define WGL_ARB_make_current_read 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern BOOL WINAPI wglMakeContextCurrentARB (HDC, HDC, HGLRC);
+extern HDC WINAPI wglGetCurrentReadDCARB (void);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef BOOL (WINAPI * PFNWGLMAKECONTEXTCURRENTARBPROC) (HDC hDrawDC, HDC hReadDC, HGLRC hglrc);
+typedef HDC (WINAPI * PFNWGLGETCURRENTREADDCARBPROC) (void);
+#endif
+
+#ifndef WGL_ARB_pbuffer
+#define WGL_ARB_pbuffer 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern HPBUFFERARB WINAPI wglCreatePbufferARB (HDC, int, int, int, const int *);
+extern HDC WINAPI wglGetPbufferDCARB (HPBUFFERARB);
+extern int WINAPI wglReleasePbufferDCARB (HPBUFFERARB, HDC);
+extern BOOL WINAPI wglDestroyPbufferARB (HPBUFFERARB);
+extern BOOL WINAPI wglQueryPbufferARB (HPBUFFERARB, int, int *);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef HPBUFFERARB (WINAPI * PFNWGLCREATEPBUFFERARBPROC) (HDC hDC, int iPixelFormat, int iWidth, int iHeight, const int *piAttribList);
+typedef HDC (WINAPI * PFNWGLGETPBUFFERDCARBPROC) (HPBUFFERARB hPbuffer);
+typedef int (WINAPI * PFNWGLRELEASEPBUFFERDCARBPROC) (HPBUFFERARB hPbuffer, HDC hDC);
+typedef BOOL (WINAPI * PFNWGLDESTROYPBUFFERARBPROC) (HPBUFFERARB hPbuffer);
+typedef BOOL (WINAPI * PFNWGLQUERYPBUFFERARBPROC) (HPBUFFERARB hPbuffer, int iAttribute, int *piValue);
+#endif
+
+#ifndef WGL_ARB_render_texture
+#define WGL_ARB_render_texture 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern BOOL WINAPI wglBindTexImageARB (HPBUFFERARB, int);
+extern BOOL WINAPI wglReleaseTexImageARB (HPBUFFERARB, int);
+extern BOOL WINAPI wglSetPbufferAttribARB (HPBUFFERARB, const int *);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef BOOL (WINAPI * PFNWGLBINDTEXIMAGEARBPROC) (HPBUFFERARB hPbuffer, int iBuffer);
+typedef BOOL (WINAPI * PFNWGLRELEASETEXIMAGEARBPROC) (HPBUFFERARB hPbuffer, int iBuffer);
+typedef BOOL (WINAPI * PFNWGLSETPBUFFERATTRIBARBPROC) (HPBUFFERARB hPbuffer, const int *piAttribList);
+#endif
+
+#ifndef WGL_EXT_display_color_table
+#define WGL_EXT_display_color_table 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern GLboolean WINAPI wglCreateDisplayColorTableEXT (GLushort);
+extern GLboolean WINAPI wglLoadDisplayColorTableEXT (const GLushort *, GLuint);
+extern GLboolean WINAPI wglBindDisplayColorTableEXT (GLushort);
+extern VOID WINAPI wglDestroyDisplayColorTableEXT (GLushort);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef GLboolean (WINAPI * PFNWGLCREATEDISPLAYCOLORTABLEEXTPROC) (GLushort id);
+typedef GLboolean (WINAPI * PFNWGLLOADDISPLAYCOLORTABLEEXTPROC) (const GLushort *table, GLuint length);
+typedef GLboolean (WINAPI * PFNWGLBINDDISPLAYCOLORTABLEEXTPROC) (GLushort id);
+typedef VOID (WINAPI * PFNWGLDESTROYDISPLAYCOLORTABLEEXTPROC) (GLushort id);
+#endif
+
+#ifndef WGL_EXT_extensions_string
+#define WGL_EXT_extensions_string 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern const char * WINAPI wglGetExtensionsStringEXT (void);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef const char * (WINAPI * PFNWGLGETEXTENSIONSSTRINGEXTPROC) (void);
+#endif
+
+#ifndef WGL_EXT_make_current_read
+#define WGL_EXT_make_current_read 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern BOOL WINAPI wglMakeContextCurrentEXT (HDC, HDC, HGLRC);
+extern HDC WINAPI wglGetCurrentReadDCEXT (void);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef BOOL (WINAPI * PFNWGLMAKECONTEXTCURRENTEXTPROC) (HDC hDrawDC, HDC hReadDC, HGLRC hglrc);
+typedef HDC (WINAPI * PFNWGLGETCURRENTREADDCEXTPROC) (void);
+#endif
+
+#ifndef WGL_EXT_pbuffer
+#define WGL_EXT_pbuffer 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern HPBUFFEREXT WINAPI wglCreatePbufferEXT (HDC, int, int, int, const int *);
+extern HDC WINAPI wglGetPbufferDCEXT (HPBUFFEREXT);
+extern int WINAPI wglReleasePbufferDCEXT (HPBUFFEREXT, HDC);
+extern BOOL WINAPI wglDestroyPbufferEXT (HPBUFFEREXT);
+extern BOOL WINAPI wglQueryPbufferEXT (HPBUFFEREXT, int, int *);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef HPBUFFEREXT (WINAPI * PFNWGLCREATEPBUFFEREXTPROC) (HDC hDC, int iPixelFormat, int iWidth, int iHeight, const int *piAttribList);
+typedef HDC (WINAPI * PFNWGLGETPBUFFERDCEXTPROC) (HPBUFFEREXT hPbuffer);
+typedef int (WINAPI * PFNWGLRELEASEPBUFFERDCEXTPROC) (HPBUFFEREXT hPbuffer, HDC hDC);
+typedef BOOL (WINAPI * PFNWGLDESTROYPBUFFEREXTPROC) (HPBUFFEREXT hPbuffer);
+typedef BOOL (WINAPI * PFNWGLQUERYPBUFFEREXTPROC) (HPBUFFEREXT hPbuffer, int iAttribute, int *piValue);
+#endif
+
+#ifndef WGL_EXT_pixel_format
+#define WGL_EXT_pixel_format 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern BOOL WINAPI wglGetPixelFormatAttribivEXT (HDC, int, int, UINT, int *, int *);
+extern BOOL WINAPI wglGetPixelFormatAttribfvEXT (HDC, int, int, UINT, int *, FLOAT *);
+extern BOOL WINAPI wglChoosePixelFormatEXT (HDC, const int *, const FLOAT *, UINT, int *, UINT *);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef BOOL (WINAPI * PFNWGLGETPIXELFORMATATTRIBIVEXTPROC) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, int *piAttributes, int *piValues);
+typedef BOOL (WINAPI * PFNWGLGETPIXELFORMATATTRIBFVEXTPROC) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, int *piAttributes, FLOAT *pfValues);
+typedef BOOL (WINAPI * PFNWGLCHOOSEPIXELFORMATEXTPROC) (HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
+#endif
+
+#ifndef WGL_EXT_swap_control
+#define WGL_EXT_swap_control 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern BOOL WINAPI wglSwapIntervalEXT (int);
+extern int WINAPI wglGetSwapIntervalEXT (void);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef BOOL (WINAPI * PFNWGLSWAPINTERVALEXTPROC) (int interval);
+typedef int (WINAPI * PFNWGLGETSWAPINTERVALEXTPROC) (void);
+#endif
+
+#ifndef WGL_EXT_depth_float
+#define WGL_EXT_depth_float 1
+#endif
+
+#ifndef WGL_NV_vertex_array_range
+#define WGL_NV_vertex_array_range 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern void* WINAPI wglAllocateMemoryNV (GLsizei, GLfloat, GLfloat, GLfloat);
+extern void WINAPI wglFreeMemoryNV (void *);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef void* (WINAPI * PFNWGLALLOCATEMEMORYNVPROC) (GLsizei size, GLfloat readfreq, GLfloat writefreq, GLfloat priority);
+typedef void (WINAPI * PFNWGLFREEMEMORYNVPROC) (void *pointer);
+#endif
+
+#ifndef WGL_3DFX_multisample
+#define WGL_3DFX_multisample 1
+#endif
+
+#ifndef WGL_EXT_multisample
+#define WGL_EXT_multisample 1
+#endif
+
+#ifndef WGL_OML_sync_control
+#define WGL_OML_sync_control 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern BOOL WINAPI wglGetSyncValuesOML (HDC, INT64 *, INT64 *, INT64 *);
+extern BOOL WINAPI wglGetMscRateOML (HDC, INT32 *, INT32 *);
+extern INT64 WINAPI wglSwapBuffersMscOML (HDC, INT64, INT64, INT64);
+extern INT64 WINAPI wglSwapLayerBuffersMscOML (HDC, int, INT64, INT64, INT64);
+extern BOOL WINAPI wglWaitForMscOML (HDC, INT64, INT64, INT64, INT64 *, INT64 *, INT64 *);
+extern BOOL WINAPI wglWaitForSbcOML (HDC, INT64, INT64 *, INT64 *, INT64 *);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef BOOL (WINAPI * PFNWGLGETSYNCVALUESOMLPROC) (HDC hdc, INT64 *ust, INT64 *msc, INT64 *sbc);
+typedef BOOL (WINAPI * PFNWGLGETMSCRATEOMLPROC) (HDC hdc, INT32 *numerator, INT32 *denominator);
+typedef INT64 (WINAPI * PFNWGLSWAPBUFFERSMSCOMLPROC) (HDC hdc, INT64 target_msc, INT64 divisor, INT64 remainder);
+typedef INT64 (WINAPI * PFNWGLSWAPLAYERBUFFERSMSCOMLPROC) (HDC hdc, int fuPlanes, INT64 target_msc, INT64 divisor, INT64 remainder);
+typedef BOOL (WINAPI * PFNWGLWAITFORMSCOMLPROC) (HDC hdc, INT64 target_msc, INT64 divisor, INT64 remainder, INT64 *ust, INT64 *msc, INT64 *sbc);
+typedef BOOL (WINAPI * PFNWGLWAITFORSBCOMLPROC) (HDC hdc, INT64 target_sbc, INT64 *ust, INT64 *msc, INT64 *sbc);
+#endif
+
+#ifndef WGL_I3D_digital_video_control
+#define WGL_I3D_digital_video_control 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern BOOL WINAPI wglGetDigitalVideoParametersI3D (HDC, int, int *);
+extern BOOL WINAPI wglSetDigitalVideoParametersI3D (HDC, int, const int *);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef BOOL (WINAPI * PFNWGLGETDIGITALVIDEOPARAMETERSI3DPROC) (HDC hDC, int iAttribute, int *piValue);
+typedef BOOL (WINAPI * PFNWGLSETDIGITALVIDEOPARAMETERSI3DPROC) (HDC hDC, int iAttribute, const int *piValue);
+#endif
+
+#ifndef WGL_I3D_gamma
+#define WGL_I3D_gamma 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern BOOL WINAPI wglGetGammaTableParametersI3D (HDC, int, int *);
+extern BOOL WINAPI wglSetGammaTableParametersI3D (HDC, int, const int *);
+extern BOOL WINAPI wglGetGammaTableI3D (HDC, int, USHORT *, USHORT *, USHORT *);
+extern BOOL WINAPI wglSetGammaTableI3D (HDC, int, const USHORT *, const USHORT *, const USHORT *);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef BOOL (WINAPI * PFNWGLGETGAMMATABLEPARAMETERSI3DPROC) (HDC hDC, int iAttribute, int *piValue);
+typedef BOOL (WINAPI * PFNWGLSETGAMMATABLEPARAMETERSI3DPROC) (HDC hDC, int iAttribute, const int *piValue);
+typedef BOOL (WINAPI * PFNWGLGETGAMMATABLEI3DPROC) (HDC hDC, int iEntries, USHORT *puRed, USHORT *puGreen, USHORT *puBlue);
+typedef BOOL (WINAPI * PFNWGLSETGAMMATABLEI3DPROC) (HDC hDC, int iEntries, const USHORT *puRed, const USHORT *puGreen, const USHORT *puBlue);
+#endif
+
+#ifndef WGL_I3D_genlock
+#define WGL_I3D_genlock 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern BOOL WINAPI wglEnableGenlockI3D (HDC);
+extern BOOL WINAPI wglDisableGenlockI3D (HDC);
+extern BOOL WINAPI wglIsEnabledGenlockI3D (HDC, BOOL *);
+extern BOOL WINAPI wglGenlockSourceI3D (HDC, UINT);
+extern BOOL WINAPI wglGetGenlockSourceI3D (HDC, UINT *);
+extern BOOL WINAPI wglGenlockSourceEdgeI3D (HDC, UINT);
+extern BOOL WINAPI wglGetGenlockSourceEdgeI3D (HDC, UINT *);
+extern BOOL WINAPI wglGenlockSampleRateI3D (HDC, UINT);
+extern BOOL WINAPI wglGetGenlockSampleRateI3D (HDC, UINT *);
+extern BOOL WINAPI wglGenlockSourceDelayI3D (HDC, UINT);
+extern BOOL WINAPI wglGetGenlockSourceDelayI3D (HDC, UINT *);
+extern BOOL WINAPI wglQueryGenlockMaxSourceDelayI3D (HDC, UINT *, UINT *);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef BOOL (WINAPI * PFNWGLENABLEGENLOCKI3DPROC) (HDC hDC);
+typedef BOOL (WINAPI * PFNWGLDISABLEGENLOCKI3DPROC) (HDC hDC);
+typedef BOOL (WINAPI * PFNWGLISENABLEDGENLOCKI3DPROC) (HDC hDC, BOOL *pFlag);
+typedef BOOL (WINAPI * PFNWGLGENLOCKSOURCEI3DPROC) (HDC hDC, UINT uSource);
+typedef BOOL (WINAPI * PFNWGLGETGENLOCKSOURCEI3DPROC) (HDC hDC, UINT *uSource);
+typedef BOOL (WINAPI * PFNWGLGENLOCKSOURCEEDGEI3DPROC) (HDC hDC, UINT uEdge);
+typedef BOOL (WINAPI * PFNWGLGETGENLOCKSOURCEEDGEI3DPROC) (HDC hDC, UINT *uEdge);
+typedef BOOL (WINAPI * PFNWGLGENLOCKSAMPLERATEI3DPROC) (HDC hDC, UINT uRate);
+typedef BOOL (WINAPI * PFNWGLGETGENLOCKSAMPLERATEI3DPROC) (HDC hDC, UINT *uRate);
+typedef BOOL (WINAPI * PFNWGLGENLOCKSOURCEDELAYI3DPROC) (HDC hDC, UINT uDelay);
+typedef BOOL (WINAPI * PFNWGLGETGENLOCKSOURCEDELAYI3DPROC) (HDC hDC, UINT *uDelay);
+typedef BOOL (WINAPI * PFNWGLQUERYGENLOCKMAXSOURCEDELAYI3DPROC) (HDC hDC, UINT *uMaxLineDelay, UINT *uMaxPixelDelay);
+#endif
+
+#ifndef WGL_I3D_image_buffer
+#define WGL_I3D_image_buffer 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern LPVOID WINAPI wglCreateImageBufferI3D (HDC, DWORD, UINT);
+extern BOOL WINAPI wglDestroyImageBufferI3D (HDC, LPVOID);
+extern BOOL WINAPI wglAssociateImageBufferEventsI3D (HDC, const HANDLE *, const LPVOID *, const DWORD *, UINT);
+extern BOOL WINAPI wglReleaseImageBufferEventsI3D (HDC, const LPVOID *, UINT);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef LPVOID (WINAPI * PFNWGLCREATEIMAGEBUFFERI3DPROC) (HDC hDC, DWORD dwSize, UINT uFlags);
+typedef BOOL (WINAPI * PFNWGLDESTROYIMAGEBUFFERI3DPROC) (HDC hDC, LPVOID pAddress);
+typedef BOOL (WINAPI * PFNWGLASSOCIATEIMAGEBUFFEREVENTSI3DPROC) (HDC hDC, const HANDLE *pEvent, const LPVOID *pAddress, const DWORD *pSize, UINT count);
+typedef BOOL (WINAPI * PFNWGLRELEASEIMAGEBUFFEREVENTSI3DPROC) (HDC hDC, const LPVOID *pAddress, UINT count);
+#endif
+
+#ifndef WGL_I3D_swap_frame_lock
+#define WGL_I3D_swap_frame_lock 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern BOOL WINAPI wglEnableFrameLockI3D (void);
+extern BOOL WINAPI wglDisableFrameLockI3D (void);
+extern BOOL WINAPI wglIsEnabledFrameLockI3D (BOOL *);
+extern BOOL WINAPI wglQueryFrameLockMasterI3D (BOOL *);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef BOOL (WINAPI * PFNWGLENABLEFRAMELOCKI3DPROC) (void);
+typedef BOOL (WINAPI * PFNWGLDISABLEFRAMELOCKI3DPROC) (void);
+typedef BOOL (WINAPI * PFNWGLISENABLEDFRAMELOCKI3DPROC) (BOOL *pFlag);
+typedef BOOL (WINAPI * PFNWGLQUERYFRAMELOCKMASTERI3DPROC) (BOOL *pFlag);
+#endif
+
+#ifndef WGL_I3D_swap_frame_usage
+#define WGL_I3D_swap_frame_usage 1
+#ifdef WGL_WGLEXT_PROTOTYPES
+extern BOOL WINAPI wglGetFrameUsageI3D (float *);
+extern BOOL WINAPI wglBeginFrameTrackingI3D (void);
+extern BOOL WINAPI wglEndFrameTrackingI3D (void);
+extern BOOL WINAPI wglQueryFrameTrackingI3D (DWORD *, DWORD *, float *);
+#endif /* WGL_WGLEXT_PROTOTYPES */
+typedef BOOL (WINAPI * PFNWGLGETFRAMEUSAGEI3DPROC) (float *pUsage);
+typedef BOOL (WINAPI * PFNWGLBEGINFRAMETRACKINGI3DPROC) (void);
+typedef BOOL (WINAPI * PFNWGLENDFRAMETRACKINGI3DPROC) (void);
+typedef BOOL (WINAPI * PFNWGLQUERYFRAMETRACKINGI3DPROC) (DWORD *pFrameCount, DWORD *pMissedFrames, float *pLastMissedUsage);
+#endif
+
+#ifndef WGL_ATI_pixel_format_float
+#define WGL_ATI_pixel_format_float 1
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif