add SciTech's GLDirect driver for Windows.

This code is donated to Mesa which allows the usage of
a Direct3D layer (DX7, DX8, DX9 or complete software fallback).

No build system exists for this code yet, that will come.....

1 files changed, 620 insertions, 0 deletions

diff --git a/src/mesa/drivers/windows/gldirect/dglpf.c b/src/mesa/drivers/windows/gldirect/dglpf.c
new file mode 100644
index 0000000000..65e389d7a7
--- /dev/null
+++ b/src/mesa/drivers/windows/gldirect/dglpf.c
@@ -0,0 +1,620 @@
+/****************************************************************************
+*
+*                        Mesa 3-D graphics library
+*                        Direct3D Driver Interface
+*
+*  ========================================================================
+*
+*   Copyright (C) 1991-2004 SciTech Software, Inc. All rights reserved.
+*
+*   Permission is hereby granted, free of charge, to any person obtaining a
+*   copy of this software and associated documentation files (the "Software"),
+*   to deal in the Software without restriction, including without limitation
+*   the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*   and/or sell copies of the Software, and to permit persons to whom the
+*   Software is furnished to do so, subject to the following conditions:
+*
+*   The above copyright notice and this permission notice shall be included
+*   in all copies or substantial portions of the Software.
+*
+*   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+*   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+*   SCITECH SOFTWARE INC BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+*   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+*   OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+*   SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:     ANSI C
+* Environment:  Windows 9x (Win32)
+*
+* Description:  Pixel Formats.
+*
+****************************************************************************/
+
+#include "dglpf.h"
+
+#ifdef _USE_GLD3_WGL
+#include "gld_driver.h"
+#endif
+
+// ***********************************************************************
+
+char	szColorDepthWarning[] =
+"GLDirect does not support the current desktop\n\
+color depth.\n\n\
+You may need to change the display resolution to\n\
+16 bits per pixel or higher color depth using\n\
+the Windows Display Settings control panel\n\
+before running this OpenGL application.\n";
+
+// ***********************************************************************
+// This pixel format will be used as a template when compiling the list
+// of pixel formats supported by the hardware. Many fields will be
+// filled in at runtime.
+// PFD flag defaults are upgraded to match ChoosePixelFormat() -- DaveM
+DGL_pixelFormat pfTemplateHW =
+{
+    {
+	sizeof(PIXELFORMATDESCRIPTOR),	// Size of the data structure
+		1,							// Structure version - should be 1
+									// Flags:
+		PFD_DRAW_TO_WINDOW |		// The buffer can draw to a window or device surface.
+		PFD_DRAW_TO_BITMAP |		// The buffer can draw to a bitmap. (DaveM)
+		PFD_SUPPORT_GDI |			// The buffer supports GDI drawing. (DaveM)
+		PFD_SUPPORT_OPENGL |		// The buffer supports OpenGL drawing.
+		PFD_DOUBLEBUFFER |			// The buffer is double-buffered.
+		0,							// Placeholder for easy commenting of above flags
+		PFD_TYPE_RGBA,				// Pixel type RGBA.
+		16,							// Total colour bitplanes (excluding alpha bitplanes)
+		5, 0,						// Red bits, shift
+		5, 5,						// Green bits, shift
+		5, 10,						// Blue bits, shift
+		0, 0,						// Alpha bits, shift (destination alpha)
+		0,							// Accumulator bits (total)
+		0, 0, 0, 0,					// Accumulator bits: Red, Green, Blue, Alpha
+		0,							// Depth bits
+		0,							// Stencil bits
+		0,							// Number of auxiliary buffers
+		0,							// Layer type
+		0,							// Specifies the number of overlay and underlay planes.
+		0,							// Layer mask
+		0,							// Specifies the transparent color or index of an underlay plane.
+		0							// Damage mask
+	},
+	-1,	// No depth/stencil buffer
+};
+
+// ***********************************************************************
+// Return the count of the number of bits in a Bit Mask.
+int BitCount(
+	DWORD dw)
+{
+	int i;
+
+	if (dw == 0)
+		return 0;	// account for non-RGB mode
+
+	for (i=0; dw; dw=dw>>1)
+        i += (dw & 1);
+    return i;
+}
+
+// ***********************************************************************
+
+DWORD BitShift(
+	DWORD dwMaskIn)
+{
+	DWORD dwShift, dwMask;
+
+	if (dwMaskIn == 0)
+		return 0;	// account for non-RGB mode
+
+	for (dwShift=0, dwMask=dwMaskIn; !(dwMask&1); dwShift++, dwMask>>=1);
+
+    return dwShift;
+}
+
+// ***********************************************************************
+
+BOOL IsValidPFD(int iPFD)
+{
+	DGL_pixelFormat *lpPF;
+
+	// Validate license
+	if (!dglValidate())
+		return FALSE;
+
+	if ((glb.lpPF == NULL) ||
+		(glb.nPixelFormatCount == 0))
+		return FALSE;
+
+	// Check PFD range
+	if ( (iPFD < 1) || (iPFD > glb.nPixelFormatCount) ) {
+		ddlogMessage(DDLOG_ERROR, "PFD out of range\n");
+		return FALSE; // PFD is invalid
+	}
+
+	// Make a pointer to the pixel format
+	lpPF = &glb.lpPF[iPFD-1];
+
+	// Check size
+	if (lpPF->pfd.nSize != sizeof(PIXELFORMATDESCRIPTOR)) {
+		ddlogMessage(DDLOG_ERROR, "Bad PFD size\n");
+		return FALSE; // PFD is invalid
+	}
+
+	// Check version
+	if (lpPF->pfd.nVersion != 1) {
+		ddlogMessage(DDLOG_ERROR, "PFD is not Version 1\n");
+		return FALSE; // PFD is invalid
+	}
+
+	return TRUE; // PFD is valid
+}
+
+// ***********************************************************************
+
+#ifndef _USE_GLD3_WGL
+
+int		iEnumCount;			// Enumeration count
+DWORD	dwDisplayBitDepth;	// Bit depth of current display mode
+
+// ***********************************************************************
+
+HRESULT WINAPI EnumDisplayModesCallback(
+	DDSURFACEDESC2* pddsd,
+	void *pvContext)
+{
+	DWORD			dwModeDepth;
+	DDSURFACEDESC2	*lpDisplayMode;
+	char			buf[32];
+
+    // Check parameters
+	if (pddsd == NULL)
+		return DDENUMRET_CANCEL;
+
+    dwModeDepth = pddsd->ddpfPixelFormat.dwRGBBitCount;
+	lpDisplayMode = (DDSURFACEDESC2 *)pvContext;
+
+	// Check mode for compatability with device.
+	if (dwModeDepth != dwDisplayBitDepth)
+		return DDENUMRET_OK;
+
+	if (lpDisplayMode != NULL) {
+		memcpy(&lpDisplayMode[iEnumCount], pddsd, sizeof(DDSURFACEDESC2));
+		sprintf(buf, TEXT("Mode: %ld x %ld x %ld\n"),
+				pddsd->dwWidth, pddsd->dwHeight, dwModeDepth);
+		ddlogMessage(DDLOG_INFO, buf);
+	}
+
+	iEnumCount++;
+
+	return DDENUMRET_OK;
+}
+
+// ***********************************************************************
+
+HRESULT CALLBACK d3dEnumZBufferFormatsCallback(
+	DDPIXELFORMAT* pddpf,
+	VOID* lpZBufferPF )
+{
+	char buf[64];
+
+	if(pddpf == NULL)
+		return D3DENUMRET_CANCEL;
+
+	if (pddpf->dwFlags & DDPF_ZBUFFER) {
+		if (lpZBufferPF == NULL) {
+			// Pass 1. Merely counting the PF
+			glb.nZBufferPFCount++;
+		} else {
+			// Pass 2. Save the PF
+			if (pddpf->dwFlags & DDPF_STENCILBUFFER) {
+				sprintf(buf, " %d: Z=%d S=%d\n",
+					iEnumCount,
+					pddpf->dwZBufferBitDepth,
+					pddpf->dwStencilBitDepth);
+			} else {
+				sprintf(buf, " %d: Z=%d S=0\n",
+					iEnumCount,
+					pddpf->dwZBufferBitDepth);
+			}
+			ddlogMessage(DDLOG_INFO, buf);
+
+			memcpy(&glb.lpZBufferPF[iEnumCount++],
+				pddpf,
+				sizeof(DDPIXELFORMAT));
+		}
+	}
+
+	return D3DENUMRET_OK;
+}
+#endif // _USE_GLD3_WGL
+
+// ***********************************************************************
+
+BOOL IsStencilSupportBroken(LPDIRECTDRAW4 lpDD4)
+{
+	DDDEVICEIDENTIFIER	dddi; // DX6 device identifier
+	BOOL				bBroken = FALSE;
+
+	// Microsoft really fucked up with the GetDeviceIdentifier function
+	// on Windows 2000, since it locks up on stock driers on the CD. Updated
+	// drivers from vendors appear to work, but we can't identify the drivers
+	// without this function!!! For now we skip these tests on Windows 2000.
+	if ((GetVersion() & 0x80000000UL) == 0)
+		return FALSE;
+
+	// Obtain device info
+	if (FAILED(IDirectDraw4_GetDeviceIdentifier(lpDD4, &dddi, 0)))
+		return FALSE;
+
+	// Matrox G400 stencil buffer support does not draw anything in AutoCAD,
+	// but ordinary Z buffers draw shaded models fine. (DaveM)
+	if (dddi.dwVendorId == 0x102B) {		// Matrox
+		if (dddi.dwDeviceId == 0x0525) {	// G400
+			bBroken = TRUE;
+		}
+	}
+
+	return bBroken;
+}
+
+// ***********************************************************************
+
+void dglBuildPixelFormatList()
+{
+	int				i;
+	char			buf[128];
+	char			cat[8];
+	HRESULT			hRes;
+	DGL_pixelFormat	*lpPF;
+
+#ifdef _USE_GLD3_WGL
+	_gldDriver.BuildPixelformatList();
+#else
+	IDirectDraw		*lpDD1 = NULL;
+	IDirectDraw4	*lpDD4 = NULL;
+	IDirect3D3		*lpD3D3 = NULL;
+	DDSURFACEDESC2	ddsdDisplayMode;
+
+	DWORD			dwRb, dwGb, dwBb, dwAb; // Bit counts
+	DWORD			dwRs, dwGs, dwBs, dwAs; // Bit shifts
+	DWORD			dwPixelType;			// RGB or color index
+
+	// Set defaults
+	glb.nPixelFormatCount	= 0;
+	glb.lpPF				= NULL;
+	glb.nZBufferPFCount		= 0;
+	glb.lpZBufferPF			= NULL;
+	glb.nDisplayModeCount	= 0;
+	glb.lpDisplayModes		= NULL;
+
+	//
+	// Examine the hardware for depth and stencil
+	//
+
+	if (glb.bPrimary)
+		hRes = DirectDrawCreate(NULL, &lpDD1, NULL);
+	else
+		hRes = DirectDrawCreate(&glb.ddGuid, &lpDD1, NULL);
+		
+	if (FAILED(hRes)) {
+		ddlogError(DDLOG_ERROR, "dglBPFL: DirectDrawCreate failed", hRes);
+		return;
+	}
+
+	// Query for DX6 IDirectDraw4.
+	hRes = IDirectDraw_QueryInterface(
+				lpDD1,
+				&IID_IDirectDraw4,
+				(void**)&lpDD4);
+	if (FAILED(hRes)) {
+		ddlogError(DDLOG_ERROR, "dglBPFL: QueryInterface (DD4) failed", hRes);
+		goto clean_up;
+	}
+
+
+	// Retrieve caps of current display mode
+	ZeroMemory(&ddsdDisplayMode, sizeof(ddsdDisplayMode));
+	ddsdDisplayMode.dwSize = sizeof(ddsdDisplayMode);
+	hRes = IDirectDraw4_GetDisplayMode(lpDD4, &ddsdDisplayMode);
+	if (FAILED(hRes))
+		goto clean_up;
+
+	dwDisplayBitDepth = ddsdDisplayMode.ddpfPixelFormat.dwRGBBitCount;
+	dwPixelType = (dwDisplayBitDepth <= 8) ? PFD_TYPE_COLORINDEX : PFD_TYPE_RGBA;
+	dwRb = BitCount(ddsdDisplayMode.ddpfPixelFormat.dwRBitMask);
+	dwGb = BitCount(ddsdDisplayMode.ddpfPixelFormat.dwGBitMask);
+	dwBb = BitCount(ddsdDisplayMode.ddpfPixelFormat.dwBBitMask);
+	dwRs = BitShift(ddsdDisplayMode.ddpfPixelFormat.dwRBitMask);
+	dwGs = BitShift(ddsdDisplayMode.ddpfPixelFormat.dwGBitMask);
+	dwBs = BitShift(ddsdDisplayMode.ddpfPixelFormat.dwBBitMask);
+
+	if (BitCount(ddsdDisplayMode.ddpfPixelFormat.dwRGBAlphaBitMask)) {
+		dwAb = BitCount(ddsdDisplayMode.ddpfPixelFormat.dwRGBAlphaBitMask);
+		dwAs = BitShift(ddsdDisplayMode.ddpfPixelFormat.dwRGBAlphaBitMask);
+	} else {
+		dwAb = 0;
+		dwAs = 0;
+	}
+
+	// Query for available display modes
+	ddlogMessage(DDLOG_INFO, "\n");
+	ddlogMessage(DDLOG_INFO, "Display Modes:\n");
+
+	// Pass 1: Determine count
+	iEnumCount = 0;
+	hRes = IDirectDraw4_EnumDisplayModes(
+				lpDD4,
+				0,
+				NULL,
+				NULL,
+				EnumDisplayModesCallback);
+	if (FAILED(hRes)) {
+		ddlogError(DDLOG_ERROR, "dglBPFL: EnumDisplayModes failed", hRes);
+		goto clean_up;
+	}
+	if (iEnumCount == 0) {
+		ddlogMessage(DDLOG_ERROR, "dglBPFL: No display modes found");
+		goto clean_up;
+	}
+	glb.lpDisplayModes = (DDSURFACEDESC2 *)calloc(iEnumCount,
+												sizeof(DDSURFACEDESC2));
+	if (glb.lpDisplayModes == NULL) {
+		ddlogMessage(DDLOG_ERROR, "dglBPFL: DDSURFACEDESC2 calloc failed");
+		goto clean_up;
+	}
+	glb.nDisplayModeCount = iEnumCount;
+	// Pass 2: Save modes
+	iEnumCount = 0;
+	hRes = IDirectDraw4_EnumDisplayModes(
+				lpDD4,
+				0,
+				NULL,
+				(void *)glb.lpDisplayModes,
+				EnumDisplayModesCallback);
+	if (FAILED(hRes)) {
+		ddlogError(DDLOG_ERROR, "dglBPFL: EnumDisplayModes failed", hRes);
+		goto clean_up;
+	}
+							  // Query for IDirect3D3 interface
+	hRes = IDirectDraw4_QueryInterface(
+				lpDD4,
+				&IID_IDirect3D3,
+				(void**)&lpD3D3);
+	if (FAILED(hRes)) {
+		ddlogError(DDLOG_ERROR, "dglBPFL: QueryInterface (D3D3) failed", hRes);
+		goto clean_up;
+	}
+
+	ddlogMessage(DDLOG_INFO, "\n");
+	ddlogMessage(DDLOG_INFO, "ZBuffer formats:\n");
+
+	// Pass 1. Count the ZBuffer pixel formats
+	hRes = IDirect3D3_EnumZBufferFormats(
+				lpD3D3,
+				&glb.d3dGuid,
+				d3dEnumZBufferFormatsCallback,
+				NULL);
+
+	if (FAILED(hRes))
+		goto clean_up;
+
+	if (glb.nZBufferPFCount) {
+		glb.lpZBufferPF = (DDPIXELFORMAT *)calloc(glb.nZBufferPFCount,
+												sizeof(DDPIXELFORMAT));
+		if(glb.lpZBufferPF == NULL)
+			goto clean_up;
+
+		// Pass 2. Cache the ZBuffer pixel formats
+		iEnumCount = 0; // (Used by the enum function)
+		hRes = IDirect3D3_EnumZBufferFormats(
+					lpD3D3,
+					&glb.d3dGuid,
+					d3dEnumZBufferFormatsCallback,
+					glb.lpZBufferPF);
+
+		if (FAILED(hRes))
+			goto clean_up;
+	}
+
+	// Remove stencil support for boards which don't work for AutoCAD;
+	// Matrox G400 does not work, but NVidia TNT2 and ATI Rage128 do... (DaveM)
+	if (IsStencilSupportBroken(lpDD4)) {
+		for (i=0; i<iEnumCount; i++)
+			if (glb.lpZBufferPF[i].dwFlags & DDPF_STENCILBUFFER)
+				glb.nZBufferPFCount--;
+	}
+
+	// One each for every ZBuffer pixel format (including no depth buffer)
+	// Times-two because duplicated for single buffering (as opposed to double)
+	glb.nPixelFormatCount = 2 * (glb.nZBufferPFCount + 1);
+	glb.lpPF = (DGL_pixelFormat *)calloc(glb.nPixelFormatCount,
+										sizeof(DGL_pixelFormat));
+	if (glb.lpPF == NULL)
+		goto clean_up;
+	//
+	// Fill in the pixel formats
+	// Note: Depth buffer bits are really (dwZBufferBitDepth-dwStencilBitDepth)
+	//		 but this will pass wierd numbers to the OpenGL app. (?)
+	//
+
+	pfTemplateHW.pfd.iPixelType		= dwPixelType;
+	pfTemplateHW.pfd.cColorBits		= dwDisplayBitDepth;
+	pfTemplateHW.pfd.cRedBits		= dwRb;
+	pfTemplateHW.pfd.cGreenBits		= dwGb;
+	pfTemplateHW.pfd.cBlueBits		= dwBb;
+	pfTemplateHW.pfd.cAlphaBits		= dwAb;
+	pfTemplateHW.pfd.cRedShift		= dwRs;
+	pfTemplateHW.pfd.cGreenShift	= dwGs;
+	pfTemplateHW.pfd.cBlueShift		= dwBs;
+	pfTemplateHW.pfd.cAlphaShift	= dwAs;
+
+	lpPF = glb.lpPF;
+
+	// Fill in the double-buffered pixel formats
+	for (i=0; i<(glb.nZBufferPFCount + 1); i++, lpPF++) {
+		memcpy(lpPF, &pfTemplateHW, sizeof(DGL_pixelFormat));
+		if (i) {
+			lpPF->iZBufferPF		= i-1;
+			lpPF->pfd.cDepthBits	= glb.lpZBufferPF[i-1].dwZBufferBitDepth;
+			lpPF->pfd.cStencilBits	= glb.lpZBufferPF[i-1].dwStencilBitDepth;
+		}
+	}
+	// Fill in the single-buffered pixel formats
+	for (i=0; i<(glb.nZBufferPFCount + 1); i++, lpPF++) {
+		memcpy(lpPF, &pfTemplateHW, sizeof(DGL_pixelFormat));
+		if (i) {
+			lpPF->iZBufferPF		= i-1;
+			lpPF->pfd.cDepthBits	= glb.lpZBufferPF[i-1].dwZBufferBitDepth;
+			lpPF->pfd.cStencilBits	= glb.lpZBufferPF[i-1].dwStencilBitDepth;
+		}
+		// Remove double-buffer flag. Could use XOR instead...
+		lpPF->pfd.dwFlags &= (~(PFD_DOUBLEBUFFER));
+		// Insert GDI flag for single buffered format only.
+		lpPF->pfd.dwFlags |= PFD_SUPPORT_GDI;
+	}
+#endif // _USE_GLD3_WGL
+
+	// Lets dump the list to the log
+	// ** Based on "wglinfo" by Nate Robins **
+	ddlogMessage(DDLOG_INFO, "\n");
+	ddlogMessage(DDLOG_INFO, "Pixel Formats:\n");
+	ddlogMessage(DDLOG_INFO,
+		"   visual  x  bf lv rg d st  r  g  b a  ax dp st accum buffs  ms\n");
+	ddlogMessage(DDLOG_INFO,
+		" id dep cl sp sz l  ci b ro sz sz sz sz bf th cl  r  g  b  a ns b\n");
+	ddlogMessage(DDLOG_INFO,
+		"-----------------------------------------------------------------\n");
+	for (i=0, lpPF = glb.lpPF; i<glb.nPixelFormatCount; i++, lpPF++) {
+		sprintf(buf, "0x%02x ", i+1);
+
+		sprintf(cat, "%2d ", lpPF->pfd.cColorBits);
+		strcat(buf, cat);
+		if(lpPF->pfd.dwFlags & PFD_DRAW_TO_WINDOW)      sprintf(cat, "wn ");
+		else if(lpPF->pfd.dwFlags & PFD_DRAW_TO_BITMAP) sprintf(cat, "bm ");
+		else sprintf(cat, ".  ");
+		strcat(buf, cat);
+
+		/* should find transparent pixel from LAYERPLANEDESCRIPTOR */
+		sprintf(cat, " . "); 
+		strcat(buf, cat);
+
+		sprintf(cat, "%2d ", lpPF->pfd.cColorBits);
+		strcat(buf, cat);
+
+		/* bReserved field indicates number of over/underlays */
+		if(lpPF->pfd.bReserved) sprintf(cat, " %d ", lpPF->pfd.bReserved);
+		else sprintf(cat, " . "); 
+		strcat(buf, cat);
+
+		sprintf(cat, " %c ", lpPF->pfd.iPixelType == PFD_TYPE_RGBA ? 'r' : 'c');
+		strcat(buf, cat);
+
+		sprintf(cat, "%c ", lpPF->pfd.dwFlags & PFD_DOUBLEBUFFER ? 'y' : '.');
+		strcat(buf, cat);
+
+		sprintf(cat, " %c ", lpPF->pfd.dwFlags & PFD_STEREO ? 'y' : '.');
+		strcat(buf, cat);
+
+		if(lpPF->pfd.cRedBits && lpPF->pfd.iPixelType == PFD_TYPE_RGBA) 
+		    sprintf(cat, "%2d ", lpPF->pfd.cRedBits);
+		else sprintf(cat, " . ");
+		strcat(buf, cat);
+
+		if(lpPF->pfd.cGreenBits && lpPF->pfd.iPixelType == PFD_TYPE_RGBA) 
+		    sprintf(cat, "%2d ", lpPF->pfd.cGreenBits);
+		else sprintf(cat, " . ");
+		strcat(buf, cat);
+
+		if(lpPF->pfd.cBlueBits && lpPF->pfd.iPixelType == PFD_TYPE_RGBA) 
+		    sprintf(cat, "%2d ", lpPF->pfd.cBlueBits);
+		else sprintf(cat, " . ");
+		strcat(buf, cat);
+	
+		if(lpPF->pfd.cAlphaBits && lpPF->pfd.iPixelType == PFD_TYPE_RGBA) 
+			sprintf(cat, "%2d ", lpPF->pfd.cAlphaBits);
+		else sprintf(cat, " . ");
+		strcat(buf, cat);
+	
+		if(lpPF->pfd.cAuxBuffers)     sprintf(cat, "%2d ", lpPF->pfd.cAuxBuffers);
+		else sprintf(cat, " . ");
+		strcat(buf, cat);
+	
+		if(lpPF->pfd.cDepthBits)      sprintf(cat, "%2d ", lpPF->pfd.cDepthBits);
+		else sprintf(cat, " . ");
+		strcat(buf, cat);
+	
+		if(lpPF->pfd.cStencilBits)    sprintf(cat, "%2d ", lpPF->pfd.cStencilBits);
+		else sprintf(cat, " . ");
+		strcat(buf, cat);
+	
+		if(lpPF->pfd.cAccumRedBits)   sprintf(cat, "%2d ", lpPF->pfd.cAccumRedBits);
+		else sprintf(cat, " . ");
+		strcat(buf, cat);
+
+		if(lpPF->pfd.cAccumGreenBits) sprintf(cat, "%2d ", lpPF->pfd.cAccumGreenBits);
+		else sprintf(cat, " . ");
+		strcat(buf, cat);
+	
+		if(lpPF->pfd.cAccumBlueBits)  sprintf(cat, "%2d ", lpPF->pfd.cAccumBlueBits);
+		else sprintf(cat, " . ");
+		strcat(buf, cat);
+	
+		if(lpPF->pfd.cAccumAlphaBits) sprintf(cat, "%2d ", lpPF->pfd.cAccumAlphaBits);
+		else sprintf(cat, " . ");
+		strcat(buf, cat);
+	
+		/* no multisample in Win32 */
+		sprintf(cat, " . .\n");
+		strcat(buf, cat);
+
+		ddlogMessage(DDLOG_INFO, buf);
+	}
+	ddlogMessage(DDLOG_INFO,
+		"-----------------------------------------------------------------\n");
+	ddlogMessage(DDLOG_INFO, "\n");
+
+#ifndef _USE_GLD3_WGL
+clean_up:
+	// Release COM objects
+	RELEASE(lpD3D3);
+	RELEASE(lpDD4);
+	RELEASE(lpDD1);
+
+	// Popup warning message if non RGB color mode
+	if (dwDisplayBitDepth <= 8) {
+		ddlogPrintf(DDLOG_WARN, "Current Color Depth %d bpp is not supported", dwDisplayBitDepth);
+		MessageBox(NULL, szColorDepthWarning, "GLDirect", MB_OK | MB_ICONWARNING);
+	}
+#endif // _USE_GLD3_WGL
+}
+
+// ***********************************************************************
+
+void dglReleasePixelFormatList()
+{
+	glb.nPixelFormatCount = 0;
+	if (glb.lpPF) {
+		free(glb.lpPF);
+		glb.lpPF = NULL;
+	}
+#ifndef _USE_GLD3_WGL
+	glb.nZBufferPFCount = 0;
+	if (glb.lpZBufferPF) {
+		free(glb.lpZBufferPF);
+		glb.lpZBufferPF = NULL;
+	}
+	glb.nDisplayModeCount = 0;
+	if (glb.lpDisplayModes) {
+		free(glb.lpDisplayModes);
+		glb.lpDisplayModes = NULL;
+	}
+#endif // _USE_GLD3_WGL
+}
+
+// ***********************************************************************