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, 1611 insertions, 0 deletions

diff --git a/src/mesa/drivers/windows/gldirect/dx7/gld_wgl_dx7.c b/src/mesa/drivers/windows/gldirect/dx7/gld_wgl_dx7.c
new file mode 100644
index 00000000000..80395130805
--- /dev/null
+++ b/src/mesa/drivers/windows/gldirect/dx7/gld_wgl_dx7.c
@@ -0,0 +1,1611 @@
+/****************************************************************************
+*
+*                        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/2000/XP/XBox (Win32)
+*
+* Description:  GLDirect Direct3D 8.x WGL (WindowsGL)
+*
+****************************************************************************/
+
+#include "dglcontext.h"
+#include "gld_driver.h"
+//#include "gld_dxerr8.h"
+#include "gld_dx7.h"
+
+#include "tnl/tnl.h"
+#include "tnl/t_context.h"
+
+// Copied from dglcontect.c
+#define GLDERR_NONE     0
+#define GLDERR_MEM      1
+#define GLDERR_DDRAW    2
+#define GLDERR_D3D      3
+#define GLDERR_BPP      4
+#define GLDERR_DDS      5
+// This external var keeps track of any error
+extern int nContextError;
+
+// Uncomment this for persistant resources
+//#define _GLD_PERSISTANT
+
+#define DDLOG_CRITICAL_OR_WARN	DDLOG_CRITICAL
+
+extern void _gld_mesa_warning(GLcontext *, char *);
+extern void _gld_mesa_fatal(GLcontext *, char *);
+
+//---------------------------------------------------------------------------
+
+static 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";
+
+// The only depth-stencil formats currently supported by Direct3D
+// Surface Format	Depth	Stencil		Total Bits
+// D3DFMT_D32		32		-			32
+// D3DFMT_D15S1		15		1			16
+// D3DFMT_D24S8		24		8			32
+// D3DFMT_D16		16		-			16
+// D3DFMT_D24X8		24		-			32
+// D3DFMT_D24X4S4	24		4			32
+
+// 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
+static 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, 0,						// Green bits, shift
+		5, 0,						// 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
+	},
+	D3DX_SF_UNKNOWN,	// No depth/stencil buffer
+};
+
+//---------------------------------------------------------------------------
+// Vertex Shaders
+//---------------------------------------------------------------------------
+/*
+// Vertex Shader Declaration
+static DWORD dwTwoSidedLightingDecl[] =
+{
+	D3DVSD_STREAM(0),
+	D3DVSD_REG(0,  D3DVSDT_FLOAT3), 	 // XYZ position
+	D3DVSD_REG(1,  D3DVSDT_FLOAT3), 	 // XYZ normal
+	D3DVSD_REG(2,  D3DVSDT_D3DCOLOR),	 // Diffuse color
+	D3DVSD_REG(3,  D3DVSDT_D3DCOLOR),	 // Specular color
+	D3DVSD_REG(4,  D3DVSDT_FLOAT2), 	 // 2D texture unit 0
+	D3DVSD_REG(5,  D3DVSDT_FLOAT2), 	 // 2D texture unit 1
+	D3DVSD_END()
+};
+
+// Vertex Shader for two-sided lighting
+static char *szTwoSidedLightingVS =
+// This is a test shader!
+"vs.1.0\n"
+"m4x4 oPos,v0,c0\n"
+"mov oD0,v2\n"
+"mov oD1,v3\n"
+"mov oT0,v4\n"
+"mov oT1,v5\n"
+;
+*/
+//---------------------------------------------------------------------------
+//---------------------------------------------------------------------------
+
+typedef struct {
+//	HINSTANCE			hD3D8DLL;			// Handle to d3d8.dll
+//	FNDIRECT3DCREATE7	fnDirect3DCreate7;	// Direct3DCreate8 function prototype
+//	BOOL				bDirect3D;			// Persistant Direct3D7 exists
+//	BOOL				bDirect3DDevice;	// Persistant Direct3DDevice7 exists
+//	IDirect3D7			*pD3D;				// Persistant Direct3D7
+//	IDirect3DDevice7	*pDev;				// Persistant Direct3DDevice7
+	BOOL				bD3DXStarted;
+} GLD_dx7_globals;
+
+// These are "global" to all DX7 contexts. KeithH
+static GLD_dx7_globals dx7Globals;
+
+// Added for correct clipping of multiple open windows. (DaveM)
+LPDIRECTDRAWSURFACE7 lpDDSPrimary = NULL;
+LPDIRECTDRAWCLIPPER lpDDClipper = NULL;
+
+//---------------------------------------------------------------------------
+//---------------------------------------------------------------------------
+
+BOOL gldGetDXErrorString_DX(
+	HRESULT hr,
+	char *buf,
+	int nBufSize)
+{
+	//
+	// Return a string describing the input HRESULT error code
+	//
+
+	D3DXGetErrorString(hr, nBufSize, buf);
+	return TRUE;
+}
+
+//---------------------------------------------------------------------------
+//
+// DX7 does not support multisample
+/*
+static D3DMULTISAMPLE_TYPE _gldGetDeviceMultiSampleType(
+	IDirect3D8 *pD3D8,
+	D3DFORMAT SurfaceFormat,
+	D3DDEVTYPE d3dDevType,
+	BOOL Windowed)
+{
+	int			i;
+	HRESULT		hr;
+
+	if (glb.dwMultisample == GLDS_MULTISAMPLE_NONE)
+		return D3DMULTISAMPLE_NONE;
+
+	if (glb.dwMultisample == GLDS_MULTISAMPLE_FASTEST) {
+		// Find fastest multisample
+		for (i=2; i<17; i++) {
+			hr = IDirect3D8_CheckDeviceMultiSampleType(
+					pD3D8,
+					glb.dwAdapter,
+					d3dDevType,
+					SurfaceFormat,
+					Windowed,
+					(D3DMULTISAMPLE_TYPE)i);
+			if (SUCCEEDED(hr)) {
+				return (D3DMULTISAMPLE_TYPE)i;
+			}
+		}
+	} else {
+		// Find nicest multisample
+		for (i=16; i>1; i--) {
+			hr = IDirect3D8_CheckDeviceMultiSampleType(
+					pD3D8,
+					glb.dwAdapter,
+					d3dDevType,
+					SurfaceFormat,
+					Windowed,
+					(D3DMULTISAMPLE_TYPE)i);
+			if (SUCCEEDED(hr)) {
+				return (D3DMULTISAMPLE_TYPE)i;
+			}
+		}
+	}
+
+	// Nothing found - return default
+	return D3DMULTISAMPLE_NONE;
+}
+*/
+//---------------------------------------------------------------------------
+
+void _gldDestroyPrimitiveBuffer(
+	GLD_pb_dx7 *gldVB)
+{
+	SAFE_RELEASE(gldVB->pVB);
+
+	// Sanity check...
+	gldVB->nLines = gldVB->nPoints = gldVB->nTriangles = 0;
+}
+
+//---------------------------------------------------------------------------
+
+HRESULT _gldCreatePrimitiveBuffer(
+	GLcontext *ctx,
+	GLD_driver_dx7 *lpCtx,
+	GLD_pb_dx7 *gldVB)
+{
+	HRESULT				hResult;
+	char				*szCreateVertexBufferFailed = "CreateVertexBuffer failed";
+	DWORD				dwMaxVertices;	// Max number of vertices in vertex buffer
+	DWORD				dwVBSize;		// Total size of vertex buffer
+	D3DVERTEXBUFFERDESC	vbdesc;
+
+	// If CVA (Compiled Vertex Array) is used by an OpenGL app, then we
+	// will need enough vertices to cater for Mesa::Const.MaxArrayLockSize.
+	// We'll use IMM_SIZE if it's larger (which it should not be).
+	dwMaxVertices = (IMM_SIZE < MAX_ARRAY_LOCK_SIZE) ? MAX_ARRAY_LOCK_SIZE : IMM_SIZE;
+
+    // Max vertex buffer size limited in DX7. (DaveM)
+    if (dwMaxVertices*9 > D3DMAXNUMVERTICES)
+        dwMaxVertices = D3DMAXNUMVERTICES/9;
+
+	// Now calculate how many vertices to allow for in total
+	// 1 per point, 2 per line, 6 per quad = 9
+	dwVBSize = dwMaxVertices * 9 * gldVB->dwStride;
+
+	vbdesc.dwSize			= sizeof(vbdesc);
+	vbdesc.dwCaps			= gldVB->dwCreateFlags;
+	vbdesc.dwFVF			= gldVB->dwFVF;
+	vbdesc.dwNumVertices	= dwMaxVertices * 9;
+
+/*	hResult = IDirect3DDevice8_CreateVertexBuffer(
+		lpCtx->pDev,
+		dwVBSize,
+RAgldVB->dwUsage,
+		gldVB->dwFVF,
+		gldVB->dwPool,
+		&gldVB->pVB);*/
+	hResult = IDirect3D7_CreateVertexBuffer(
+		lpCtx->pD3D,
+		&vbdesc,
+		&gldVB->pVB,
+		0);
+	if (FAILED(hResult)) {
+		ddlogMessage(DDLOG_CRITICAL_OR_WARN, szCreateVertexBufferFailed);
+		return hResult;
+	}
+
+	gldVB->nLines = gldVB->nPoints = gldVB->nTriangles = 0;
+	gldVB->pPoints	= gldVB->pLines = gldVB->pTriangles = NULL;
+	gldVB->iFirstLine = dwMaxVertices; // Index of first line in VB
+	gldVB->iFirstTriangle = dwMaxVertices*3; // Index of first triangle in VB
+
+	return S_OK;
+}
+
+//---------------------------------------------------------------------------
+// Function: _gldCreateVertexShaders
+// Create DX8 Vertex Shaders.
+//---------------------------------------------------------------------------
+/*
+void _gldCreateVertexShaders(
+	GLD_driver_dx8 *gld)
+{
+	DWORD			dwFlags;
+	LPD3DXBUFFER	pVSOpcodeBuffer; // Vertex Shader opcode buffer
+	HRESULT			hr;
+
+#ifdef _DEBUG
+	dwFlags = D3DXASM_DEBUG;
+#else
+	dwFlags = 0; // D3DXASM_SKIPVALIDATION;
+#endif
+
+	ddlogMessage(DDLOG_INFO, "Creating shaders...\n");
+
+	// Init the shader handle
+	gld->VStwosidelight.hShader = 0;
+
+	if (gld->d3dCaps8.MaxStreams == 0) {
+		// Lame DX8 driver doesn't support streams
+		// Not fatal, as defaults will be used
+		ddlogMessage(DDLOG_WARN, "Driver doesn't support Vertex Shaders (MaxStreams==0)\n");
+		return;
+	}
+
+	// ** THIS DISABLES VERTEX SHADER SUPPORT **
+//	return;
+	// ** THIS DISABLES VERTEX SHADER SUPPORT **
+
+	//
+	// Two-sided lighting
+	//
+
+#if 0
+	//
+	// DEBUGGING: Load shader from a text file
+	//
+	{
+	LPD3DXBUFFER	pVSErrorBuffer; // Vertex Shader error buffer
+	hr = D3DXAssembleShaderFromFile(
+			"twoside.vsh",
+			dwFlags,
+			NULL, // No constants
+			&pVSOpcodeBuffer,
+			&pVSErrorBuffer);
+	if (pVSErrorBuffer && pVSErrorBuffer->lpVtbl->GetBufferPointer(pVSErrorBuffer))
+		ddlogMessage(DDLOG_INFO, pVSErrorBuffer->lpVtbl->GetBufferPointer(pVSErrorBuffer));
+	SAFE_RELEASE(pVSErrorBuffer);
+	}
+#else
+	{
+	LPD3DXBUFFER	pVSErrorBuffer; // Vertex Shader error buffer
+	// Assemble ascii shader text into shader opcodes
+	hr = D3DXAssembleShader(
+			szTwoSidedLightingVS,
+			strlen(szTwoSidedLightingVS),
+			dwFlags,
+			NULL, // No constants
+			&pVSOpcodeBuffer,
+			&pVSErrorBuffer);
+	if (pVSErrorBuffer && pVSErrorBuffer->lpVtbl->GetBufferPointer(pVSErrorBuffer))
+		ddlogMessage(DDLOG_INFO, pVSErrorBuffer->lpVtbl->GetBufferPointer(pVSErrorBuffer));
+	SAFE_RELEASE(pVSErrorBuffer);
+	}
+#endif
+	if (FAILED(hr)) {
+		ddlogError(DDLOG_WARN, "AssembleShader failed", hr);
+		SAFE_RELEASE(pVSOpcodeBuffer);
+		return;
+	}
+
+// This is for debugging. Remove to enable vertex shaders in HW
+#define _GLD_FORCE_SW_VS 0
+
+	if (_GLD_FORCE_SW_VS) {
+		// _GLD_FORCE_SW_VS should be disabled for Final Release
+		ddlogMessage(DDLOG_SYSTEM, "[Forcing shaders in SW]\n");
+	}
+
+	// Try and create shader in hardware.
+	// NOTE: The D3D Ref device appears to succeed when trying to
+	//       create the device in hardware, but later complains
+	//       when trying to set it with SetVertexShader(). Go figure.
+	if (_GLD_FORCE_SW_VS || glb.dwDriver == GLDS_DRIVER_REF) {
+		// Don't try and create a hardware shader with the Ref device
+		hr = E_FAIL; // COM error/fail result
+	} else {
+		gld->VStwosidelight.bHardware = TRUE;
+		hr = IDirect3DDevice8_CreateVertexShader(
+			gld->pDev,
+			dwTwoSidedLightingDecl,
+			pVSOpcodeBuffer->lpVtbl->GetBufferPointer(pVSOpcodeBuffer),
+			&gld->VStwosidelight.hShader,
+			0);
+	}
+	if (FAILED(hr)) {
+		ddlogMessage(DDLOG_INFO, "... HW failed, trying SW...\n");
+		// Failed. Try and create shader for software processing
+		hr = IDirect3DDevice8_CreateVertexShader(
+			gld->pDev,
+			dwTwoSidedLightingDecl,
+			pVSOpcodeBuffer->lpVtbl->GetBufferPointer(pVSOpcodeBuffer),
+			&gld->VStwosidelight.hShader,
+			D3DUSAGE_SOFTWAREPROCESSING);
+		if (FAILED(hr)) {
+			gld->VStwosidelight.hShader = 0; // Sanity check
+			ddlogError(DDLOG_WARN, "CreateVertexShader failed", hr);
+			return;
+		}
+		// Succeeded, but for software processing
+		gld->VStwosidelight.bHardware = FALSE;
+	}
+
+	SAFE_RELEASE(pVSOpcodeBuffer);
+
+	ddlogMessage(DDLOG_INFO, "... OK\n");
+}
+
+//---------------------------------------------------------------------------
+
+void _gldDestroyVertexShaders(
+	GLD_driver_dx8 *gld)
+{
+	if (gld->VStwosidelight.hShader) {
+		IDirect3DDevice8_DeleteVertexShader(gld->pDev, gld->VStwosidelight.hShader);
+		gld->VStwosidelight.hShader = 0;
+	}
+}
+*/
+//---------------------------------------------------------------------------
+
+BOOL gldCreateDrawable_DX(
+	DGL_ctx *ctx,
+//	BOOL bDefaultDriver,
+	BOOL bDirectDrawPersistant,
+	BOOL bPersistantBuffers)
+{
+	//
+	// bDirectDrawPersistant:	applies to IDirect3D8
+	// bPersistantBuffers:		applies to IDirect3DDevice8
+	//
+
+//	D3DDEVTYPE				d3dDevType;
+//	D3DPRESENT_PARAMETERS	d3dpp;
+//	D3DDISPLAYMODE			d3ddm;
+//	DWORD					dwBehaviourFlags;
+//	D3DADAPTER_IDENTIFIER8	d3dIdent;
+
+	HRESULT				hr;
+	GLD_driver_dx7		*lpCtx = NULL;
+	D3DX_VIDMODEDESC	d3ddm;
+
+	// Parameters for D3DXCreateContextEx
+	// These will be different for fullscreen and windowed
+	DWORD				dwDeviceIndex;
+	DWORD				dwFlags;
+	HWND				hwnd;
+	HWND				hwndFocus;
+	DWORD				numColorBits;
+	DWORD				numAlphaBits;
+	DWORD				numDepthBits;
+	DWORD				numStencilBits;
+	DWORD				numBackBuffers;
+	DWORD				dwWidth;
+	DWORD				dwHeight;
+	DWORD				refreshRate;
+
+	// Error if context is NULL.
+	if (ctx == NULL)
+		return FALSE;
+
+	if (ctx->glPriv) {
+		lpCtx = ctx->glPriv;
+		// Release any existing interfaces (in reverse order)
+		SAFE_RELEASE(lpCtx->pDev);
+		SAFE_RELEASE(lpCtx->pD3D);
+		lpCtx->pD3DXContext->lpVtbl->Release(lpCtx->pD3DXContext);
+		lpCtx->pD3DXContext = NULL;
+	} else {
+		lpCtx = (GLD_driver_dx7*)malloc(sizeof(GLD_driver_dx7));
+		ZeroMemory(lpCtx, sizeof(lpCtx));
+	}
+
+//	d3dDevType = (glb.dwDriver == GLDS_DRIVER_HAL) ? D3DDEVTYPE_HAL : D3DDEVTYPE_REF;
+	// Use REF device if requested. Otherwise D3DX_DEFAULT will choose highest level
+	// of HW acceleration.
+	dwDeviceIndex = (glb.dwDriver == GLDS_DRIVER_REF) ? D3DX_HWLEVEL_REFERENCE : D3DX_DEFAULT;
+
+	// TODO: Check this
+//	if (bDefaultDriver)
+//		d3dDevType = D3DDEVTYPE_REF;
+
+#ifdef _GLD_PERSISTANT
+	// Use persistant interface if needed
+	if (bDirectDrawPersistant && dx7Globals.bDirect3D) {
+		lpCtx->pD3D = dx7Globals.pD3D;
+		IDirect3D7_AddRef(lpCtx->pD3D);
+		goto SkipDirectDrawCreate;
+	}
+#endif
+/*
+	// Create Direct3D7 object
+	lpCtx->pD3D = dx7Globals.fnDirect3DCreate8(D3D_SDK_VERSION_DX8_SUPPORT_WIN95);
+	if (lpCtx->pD3D == NULL) {
+		MessageBox(NULL, "Unable to initialize Direct3D8", "GLDirect", MB_OK);
+		ddlogMessage(DDLOG_CRITICAL_OR_WARN, "Unable to create Direct3D8 interface");
+        nContextError = GLDERR_D3D;
+		goto return_with_error;
+	}
+*/
+
+#ifdef _GLD_PERSISTANT
+	// Cache Direct3D interface for subsequent GLRCs
+	if (bDirectDrawPersistant && !dx8Globals.bDirect3D) {
+		dx7Globals.pD3D = lpCtx->pD3D;
+		IDirect3D7_AddRef(dx7Globals.pD3D);
+		dx7Globals.bDirect3D = TRUE;
+	}
+SkipDirectDrawCreate:
+#endif
+/*
+	// Get the display mode so we can make a compatible backbuffer
+	hResult = IDirect3D8_GetAdapterDisplayMode(lpCtx->pD3D, glb.dwAdapter, &d3ddm);
+	if (FAILED(hResult)) {
+        nContextError = GLDERR_D3D;
+		goto return_with_error;
+	}
+*/
+
+#if 0
+	// Get device caps
+	hResult = IDirect3D8_GetDeviceCaps(lpCtx->pD3D, glb.dwAdapter, d3dDevType, &lpCtx->d3dCaps8);
+	if (FAILED(hResult)) {
+		ddlogError(DDLOG_CRITICAL_OR_WARN, "IDirect3D8_GetDeviceCaps failed", hResult);
+        nContextError = GLDERR_D3D;
+		goto return_with_error;
+	}
+
+	// Check for hardware transform & lighting
+	lpCtx->bHasHWTnL = lpCtx->d3dCaps8.DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT ? TRUE : FALSE;
+
+	// If this flag is present then we can't default to Mesa
+	// SW rendering between BeginScene() and EndScene().
+	if (lpCtx->d3dCaps8.Caps2 & D3DCAPS2_NO2DDURING3DSCENE) {
+		ddlogMessage(DDLOG_WARN,
+			"Warning          : No 2D allowed during 3D scene.\n");
+	}
+#endif
+
+	//
+	//	Create the Direct3D context
+	//
+
+#ifdef _GLD_PERSISTANT
+	// Re-use original IDirect3DDevice if persistant buffers exist.
+	// Note that we test for persistant IDirect3D8 as well
+	// bDirectDrawPersistant == persistant IDirect3D8 (DirectDraw8 does not exist)
+	if (bDirectDrawPersistant && bPersistantBuffers && dx7Globals.pD3D && dx7Globals.pDev) {
+		lpCtx->pDev = dx7Globals.pDev;
+		IDirect3DDevice7_AddRef(dx7Globals.pDev);
+		goto skip_direct3ddevice_create;
+	}
+#endif
+/*
+	// Clear the presentation parameters (sets all members to zero)
+	ZeroMemory(&d3dpp, sizeof(d3dpp));
+
+	// Recommended by MS; needed for MultiSample.
+	// Be careful if altering this for FullScreenBlit
+	d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
+
+	d3dpp.BackBufferFormat	= d3ddm.Format;
+	d3dpp.BackBufferCount	= 1;
+	d3dpp.MultiSampleType	= _gldGetDeviceMultiSampleType(lpCtx->pD3D, d3ddm.Format, d3dDevType, !ctx->bFullscreen);
+	d3dpp.AutoDepthStencilFormat	= ctx->lpPF->dwDriverData;
+	d3dpp.EnableAutoDepthStencil	= (d3dpp.AutoDepthStencilFormat == D3DFMT_UNKNOWN) ? FALSE : TRUE;
+
+	if (ctx->bFullscreen) {
+		ddlogWarnOption(FALSE); // Don't popup any messages in fullscreen 
+		d3dpp.Windowed							= FALSE;
+		d3dpp.BackBufferWidth					= d3ddm.Width;
+		d3dpp.BackBufferHeight					= d3ddm.Height;
+		d3dpp.hDeviceWindow						= ctx->hWnd;
+		d3dpp.FullScreen_RefreshRateInHz		= D3DPRESENT_RATE_DEFAULT;
+
+		// Support for vertical retrace synchronisation.
+		// Set default presentation interval in case caps bits are missing
+		d3dpp.FullScreen_PresentationInterval	= D3DPRESENT_INTERVAL_DEFAULT;
+		if (glb.bWaitForRetrace) {
+			if (lpCtx->d3dCaps8.PresentationIntervals & D3DPRESENT_INTERVAL_ONE)
+				d3dpp.FullScreen_PresentationInterval = D3DPRESENT_INTERVAL_ONE;
+		} else {
+			if (lpCtx->d3dCaps8.PresentationIntervals & D3DPRESENT_INTERVAL_IMMEDIATE)
+				d3dpp.FullScreen_PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;
+		}
+	} else {
+		ddlogWarnOption(glb.bMessageBoxWarnings); // OK to popup messages
+		d3dpp.Windowed							= TRUE;
+		d3dpp.BackBufferWidth					= ctx->dwWidth;
+		d3dpp.BackBufferHeight					= ctx->dwHeight;
+		d3dpp.hDeviceWindow						= ctx->hWnd;
+		d3dpp.FullScreen_RefreshRateInHz		= 0;
+		// FullScreen_PresentationInterval must be default for Windowed mode
+		d3dpp.FullScreen_PresentationInterval	= D3DPRESENT_INTERVAL_DEFAULT;
+	}
+
+	// Decide if we can use hardware TnL
+	dwBehaviourFlags = (lpCtx->bHasHWTnL) ?
+		D3DCREATE_MIXED_VERTEXPROCESSING : D3DCREATE_SOFTWARE_VERTEXPROCESSING;
+	// Add flag to tell D3D to be thread-safe
+	if (glb.bMultiThreaded)
+		dwBehaviourFlags |= D3DCREATE_MULTITHREADED;
+	hResult = IDirect3D8_CreateDevice(lpCtx->pD3D,
+								glb.dwAdapter,
+								d3dDevType,
+								ctx->hWnd,
+								dwBehaviourFlags,
+								&d3dpp,
+								&lpCtx->pDev);
+    if (FAILED(hResult)) {
+		ddlogError(DDLOG_CRITICAL_OR_WARN, "IDirect3D8_CreateDevice failed", hResult);
+        nContextError = GLDERR_D3D;
+		goto return_with_error;
+	}
+*/
+
+	// Create D3DX context
+	if (ctx->bFullscreen) {
+		//
+		// FULLSCREEN
+		//
+
+		// Get display mode
+		D3DXGetCurrentVideoMode(D3DX_DEFAULT, &d3ddm);
+
+		// Fullscreen Parameters
+		dwFlags			= D3DX_CONTEXT_FULLSCREEN;
+		hwnd			= ctx->hWnd;
+		hwndFocus		= ctx->hWnd;
+		numColorBits	= ctx->lpPF->pfd.cColorBits;
+		numAlphaBits	= ctx->lpPF->pfd.cAlphaBits;
+		numDepthBits	= ctx->lpPF->pfd.cDepthBits + ctx->lpPF->pfd.cStencilBits;
+		numStencilBits	= ctx->lpPF->pfd.cStencilBits;
+		numBackBuffers	= D3DX_DEFAULT; // Default is 1 backbuffer
+		dwWidth			= d3ddm.width;
+		dwHeight		= d3ddm.height;
+		refreshRate		= d3ddm.refreshRate; // D3DX_DEFAULT;
+	} else {
+		//
+		// WINDOWED
+		//
+
+		// Windowed Parameters
+		dwFlags			= 0; // No flags means "windowed"
+		hwnd			= ctx->hWnd;
+		hwndFocus		= (HWND)D3DX_DEFAULT;
+		numColorBits	= D3DX_DEFAULT; // Use Desktop depth
+		numAlphaBits	= ctx->lpPF->pfd.cAlphaBits;
+		numDepthBits	= ctx->lpPF->pfd.cDepthBits + ctx->lpPF->pfd.cStencilBits;
+		numStencilBits	= ctx->lpPF->pfd.cStencilBits;
+		numBackBuffers	= D3DX_DEFAULT; // Default is 1 backbuffer
+		dwWidth			= ctx->dwWidth;
+		dwHeight		= ctx->dwHeight;
+		refreshRate		= D3DX_DEFAULT;
+	}
+	hr = D3DXCreateContextEx(dwDeviceIndex, dwFlags, hwnd, hwndFocus,
+							numColorBits, numAlphaBits, numDepthBits, numStencilBits,
+							numBackBuffers,
+							dwWidth, dwHeight, refreshRate,
+							&lpCtx->pD3DXContext);
+    if (FAILED(hr)) {
+		ddlogError(DDLOG_CRITICAL_OR_WARN, "D3DXCreateContextEx failed", hr);
+        nContextError = GLDERR_D3D;
+		goto return_with_error;
+	}
+
+	// Obtain D3D7 interfaces from ID3DXContext
+//	lpCtx->pDD	= ID3DXContext_GetDD(lpCtx->pD3DXContext);
+	lpCtx->pDD	= lpCtx->pD3DXContext->lpVtbl->GetDD(lpCtx->pD3DXContext);
+	if (lpCtx->pDD == NULL)
+		goto return_with_error;
+	lpCtx->pD3D	= lpCtx->pD3DXContext->lpVtbl->GetD3D(lpCtx->pD3DXContext);
+	if (lpCtx->pD3D == NULL)
+		goto return_with_error;
+	lpCtx->pDev	= lpCtx->pD3DXContext->lpVtbl->GetD3DDevice(lpCtx->pD3DXContext);
+	if (lpCtx->pDev == NULL)
+		goto return_with_error;
+
+    // Need to manage clipper manually for multiple windows
+    // since DX7 D3DX utility lib does not appear to do that. (DaveM)
+    if (!ctx->bFullscreen) {
+        // Get primary surface too
+        lpDDSPrimary = lpCtx->pD3DXContext->lpVtbl->GetPrimary(lpCtx->pD3DXContext);
+	    if (lpDDSPrimary == NULL) {
+		    ddlogPrintf(DDLOG_WARN, "GetPrimary");
+            goto return_with_error;
+	    }
+	    // Create clipper for correct window updates
+        if (IDirectDraw7_CreateClipper(lpCtx->pDD, 0, &lpDDClipper, NULL) != DD_OK) {
+		    ddlogPrintf(DDLOG_WARN, "CreateClipper");
+		    goto return_with_error;
+	    }
+        // Set the window that the clipper belongs to
+        if (IDirectDrawClipper_SetHWnd(lpDDClipper, 0, hwnd) != DD_OK) {
+		    ddlogPrintf(DDLOG_WARN, "SetHWnd");
+		    goto return_with_error;
+	    }
+        // Attach the clipper to the primary surface
+        if (IDirectDrawSurface7_SetClipper(lpDDSPrimary, lpDDClipper) != DD_OK) {
+		    ddlogPrintf(DDLOG_WARN, "SetClipper");
+            goto return_with_error;
+	    }
+    }
+
+	// Get device caps
+	IDirect3DDevice7_GetCaps(lpCtx->pDev, &lpCtx->d3dCaps);
+
+	// Determine HW TnL
+	lpCtx->bHasHWTnL = lpCtx->d3dCaps.dwDevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT ? TRUE : FALSE;
+
+#ifdef _GLD_PERSISTANT
+	if (bDirectDrawPersistant && bPersistantBuffers && dx7Globals.pD3D) {
+		dx7Globals.pDev = lpCtx->pDev;
+		dx7Globals.bDirect3DDevice = TRUE;
+	}
+#endif
+
+#if 0
+	// Dump some useful stats
+	hResult = IDirect3D8_GetAdapterIdentifier(
+		lpCtx->pD3D,
+		glb.dwAdapter,
+		D3DENUM_NO_WHQL_LEVEL, // Avoids 1 to 2 second delay
+		&d3dIdent);
+	if (SUCCEEDED(hResult)) {
+		ddlogPrintf(DDLOG_INFO, "[Driver Description: %s]", &d3dIdent.Description);
+		ddlogPrintf(DDLOG_INFO, "[Driver file: %s %d.%d.%02d.%d]",
+			d3dIdent.Driver,
+			HIWORD(d3dIdent.DriverVersion.HighPart),
+			LOWORD(d3dIdent.DriverVersion.HighPart),
+			HIWORD(d3dIdent.DriverVersion.LowPart),
+			LOWORD(d3dIdent.DriverVersion.LowPart));
+		ddlogPrintf(DDLOG_INFO, "[VendorId: 0x%X, DeviceId: 0x%X, SubSysId: 0x%X, Revision: 0x%X]",
+			d3dIdent.VendorId, d3dIdent.DeviceId, d3dIdent.SubSysId, d3dIdent.Revision);
+	}
+#endif
+
+	// Init projection matrix for D3D TnL
+	D3DXMatrixIdentity((D3DXMATRIX*)&lpCtx->matProjection);
+	lpCtx->matModelView = lpCtx->matProjection;
+//		gld->bUseMesaProjection = TRUE;
+
+skip_direct3ddevice_create:
+
+	// Create buffers to hold primitives
+	lpCtx->PB2d.dwFVF			= GLD_FVF_2D_VERTEX;
+//	lpCtx->PB2d.dwPool			= D3DPOOL_SYSTEMMEM;
+	lpCtx->PB2d.dwStride		= sizeof(GLD_2D_VERTEX);
+	lpCtx->PB2d.dwCreateFlags	= D3DVBCAPS_DONOTCLIP |
+									D3DVBCAPS_SYSTEMMEMORY |
+									D3DVBCAPS_WRITEONLY;
+	hr = _gldCreatePrimitiveBuffer(ctx->glCtx, lpCtx, &lpCtx->PB2d);
+	if (FAILED(hr))
+		goto return_with_error;
+
+	lpCtx->PB3d.dwFVF			= GLD_FVF_3D_VERTEX;
+//	lpCtx->PB3d.dwPool			= D3DPOOL_DEFAULT;
+	lpCtx->PB3d.dwStride		= sizeof(GLD_3D_VERTEX);
+	lpCtx->PB3d.dwCreateFlags	= D3DVBCAPS_WRITEONLY;
+
+	hr = _gldCreatePrimitiveBuffer(ctx->glCtx, lpCtx, &lpCtx->PB3d);
+	if (FAILED(hr))
+		goto return_with_error;
+
+	// Zero the pipeline usage counters
+	lpCtx->PipelineUsage.qwMesa.QuadPart = 
+//	lpCtx->PipelineUsage.dwD3D2SVS.QuadPart =
+	lpCtx->PipelineUsage.qwD3DFVF.QuadPart = 0;
+
+	// Assign drawable to GL private
+	ctx->glPriv = lpCtx;
+	return TRUE;
+
+return_with_error:
+	// Clean up and bail
+	_gldDestroyPrimitiveBuffer(&lpCtx->PB3d);
+	_gldDestroyPrimitiveBuffer(&lpCtx->PB2d);
+
+	SAFE_RELEASE(lpCtx->pDev);
+	SAFE_RELEASE(lpCtx->pD3D);
+	//SAFE_RELEASE(lpCtx->pD3DXContext);
+	lpCtx->pD3DXContext->lpVtbl->Release(lpCtx->pD3DXContext);
+	return FALSE;
+}
+
+//---------------------------------------------------------------------------
+
+BOOL gldResizeDrawable_DX(
+	DGL_ctx *ctx,
+	BOOL bDefaultDriver,
+	BOOL bPersistantInterface,
+	BOOL bPersistantBuffers)
+{
+	GLD_driver_dx7			*gld = NULL;
+//	D3DDEVTYPE				d3dDevType;
+//	D3DPRESENT_PARAMETERS	d3dpp;
+//	D3DDISPLAYMODE			d3ddm;
+	D3DX_VIDMODEDESC		d3ddm;
+	HRESULT					hr;
+	DWORD					dwWidth, dwHeight;
+
+	// Error if context is NULL.
+	if (ctx == NULL)
+		return FALSE;
+
+	gld = ctx->glPriv;
+	if (gld == NULL)
+		return FALSE;
+
+	if (ctx->bSceneStarted) {
+		IDirect3DDevice7_EndScene(gld->pDev);
+		ctx->bSceneStarted = FALSE;
+	}
+/*
+	d3dDevType = (glb.dwDriver == GLDS_DRIVER_HAL) ? D3DDEVTYPE_HAL : D3DDEVTYPE_REF;
+	if (!bDefaultDriver)
+		d3dDevType = D3DDEVTYPE_REF; // Force Direct3D Reference Rasterise (software)
+
+	// Get the display mode so we can make a compatible backbuffer
+	hResult = IDirect3D8_GetAdapterDisplayMode(gld->pD3D, glb.dwAdapter, &d3ddm);
+	if (FAILED(hResult)) {
+        nContextError = GLDERR_D3D;
+//		goto return_with_error;
+		return FALSE;
+	}
+*/
+	// Release objects before Reset()
+	_gldDestroyPrimitiveBuffer(&gld->PB3d);
+	_gldDestroyPrimitiveBuffer(&gld->PB2d);
+
+/*
+	// Clear the presentation parameters (sets all members to zero)
+	ZeroMemory(&d3dpp, sizeof(d3dpp));
+
+	// Recommended by MS; needed for MultiSample.
+	// Be careful if altering this for FullScreenBlit
+	d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
+
+	d3dpp.BackBufferFormat	= d3ddm.Format;
+	d3dpp.BackBufferCount	= 1;
+	d3dpp.MultiSampleType	= _gldGetDeviceMultiSampleType(gld->pD3D, d3ddm.Format, d3dDevType, !ctx->bFullscreen);
+	d3dpp.AutoDepthStencilFormat	= ctx->lpPF->dwDriverData;
+	d3dpp.EnableAutoDepthStencil	= (d3dpp.AutoDepthStencilFormat == D3DFMT_UNKNOWN) ? FALSE : TRUE;
+
+	// TODO: Sync to refresh
+
+	if (ctx->bFullscreen) {
+		ddlogWarnOption(FALSE); // Don't popup any messages in fullscreen 
+		d3dpp.Windowed							= FALSE;
+		d3dpp.BackBufferWidth					= d3ddm.Width;
+		d3dpp.BackBufferHeight					= d3ddm.Height;
+		d3dpp.hDeviceWindow						= ctx->hWnd;
+		d3dpp.FullScreen_RefreshRateInHz		= D3DPRESENT_RATE_DEFAULT;
+		d3dpp.FullScreen_PresentationInterval	= D3DPRESENT_INTERVAL_DEFAULT;
+		// Get better benchmark results? KeithH
+//		d3dpp.FullScreen_RefreshRateInHz		= D3DPRESENT_RATE_UNLIMITED;
+	} else {
+		ddlogWarnOption(glb.bMessageBoxWarnings); // OK to popup messages
+		d3dpp.Windowed							= TRUE;
+		d3dpp.BackBufferWidth					= ctx->dwWidth;
+		d3dpp.BackBufferHeight					= ctx->dwHeight;
+		d3dpp.hDeviceWindow						= ctx->hWnd;
+		d3dpp.FullScreen_RefreshRateInHz		= 0;
+		d3dpp.FullScreen_PresentationInterval	= D3DPRESENT_INTERVAL_DEFAULT;
+	}
+	hResult = IDirect3DDevice8_Reset(gld->pDev, &d3dpp);
+	if (FAILED(hResult)) {
+		ddlogError(DDLOG_CRITICAL_OR_WARN, "dglResize: Reset failed", hResult);
+		return FALSE;
+		//goto cleanup_and_return_with_error;
+	}
+*/
+	// Obtain dimensions of 'window'
+	if (ctx->bFullscreen) {
+		D3DXGetCurrentVideoMode(D3DX_DEFAULT, &d3ddm);
+		dwWidth = d3ddm.width;
+		dwHeight = d3ddm.height;
+	} else {
+		dwWidth = ctx->dwWidth;
+		dwHeight = ctx->dwHeight;
+	}
+
+	// Resize context
+	hr = gld->pD3DXContext->lpVtbl->Resize(gld->pD3DXContext, dwWidth, dwHeight);
+	if (FAILED(hr)) {
+		ddlogError(DDLOG_CRITICAL_OR_WARN, "gldResizeDrawable_DX: Resize failed", hr);
+		return FALSE;
+	}
+
+	// Clear the resized surface (DaveM)
+	{
+		D3DVIEWPORT7 vp1, vp2;
+		IDirect3DDevice7_GetViewport(gld->pDev, &vp1);
+		IDirect3DDevice7_GetViewport(gld->pDev, &vp2);
+		vp2.dwX = 0;
+		vp2.dwY = 0;
+		vp2.dwWidth = dwWidth;
+		vp2.dwHeight = dwHeight;
+		IDirect3DDevice7_SetViewport(gld->pDev, &vp2);
+		hr = gld->pD3DXContext->lpVtbl->Clear(gld->pD3DXContext, D3DCLEAR_TARGET);
+		if (FAILED(hr))
+			ddlogError(DDLOG_WARN, "gldResizeDrawable_DX: Clear failed", hr);
+		IDirect3DDevice7_SetViewport(gld->pDev, &vp1);
+	}
+
+	//
+	// Recreate objects
+	//
+	_gldCreatePrimitiveBuffer(ctx->glCtx, gld, &gld->PB2d);
+	_gldCreatePrimitiveBuffer(ctx->glCtx, gld, &gld->PB3d);
+
+	// Signal a complete state update
+	ctx->glCtx->Driver.UpdateState(ctx->glCtx, _NEW_ALL);
+
+	// Begin a new scene
+	IDirect3DDevice7_BeginScene(gld->pDev);
+	ctx->bSceneStarted = TRUE;
+
+	return TRUE;
+}
+
+//---------------------------------------------------------------------------
+
+BOOL gldDestroyDrawable_DX(
+	DGL_ctx *ctx)
+{
+	GLD_driver_dx7			*lpCtx = NULL;
+
+	// Error if context is NULL.
+	if (!ctx)
+		return FALSE;
+
+	// Error if the drawable does not exist.
+	if (!ctx->glPriv)
+		return FALSE;
+
+	lpCtx = ctx->glPriv;
+
+#ifdef _DEBUG
+	// Dump out stats
+	ddlogPrintf(DDLOG_SYSTEM, "Usage: M:0x%X%X, D:0x%X%X",
+		lpCtx->PipelineUsage.qwMesa.HighPart,
+		lpCtx->PipelineUsage.qwMesa.LowPart,
+		lpCtx->PipelineUsage.qwD3DFVF.HighPart,
+		lpCtx->PipelineUsage.qwD3DFVF.LowPart);
+#endif
+
+	// Destroy Primtive Buffers
+	_gldDestroyPrimitiveBuffer(&lpCtx->PB3d);
+	_gldDestroyPrimitiveBuffer(&lpCtx->PB2d);
+
+	// Release DX interfaces (in reverse order)
+	SAFE_RELEASE(lpCtx->pDev);
+	SAFE_RELEASE(lpCtx->pD3D);
+	//SAFE_RELEASE(lpCtx->pD3DXContext);
+	lpCtx->pD3DXContext->lpVtbl->Release(lpCtx->pD3DXContext);
+
+	// Free the private drawable data
+	free(ctx->glPriv);
+	ctx->glPriv = NULL;
+
+	return TRUE;
+}
+
+//---------------------------------------------------------------------------
+
+BOOL gldCreatePrivateGlobals_DX(void)
+{
+/*
+	ZeroMemory(&dx7Globals, sizeof(dx7Globals));
+
+	// Load d3d8.dll
+	dx8Globals.hD3D8DLL = LoadLibrary("D3D8.DLL");
+	if (dx8Globals.hD3D8DLL == NULL)
+		return FALSE;
+
+	// Now try and obtain Direct3DCreate8
+	dx8Globals.fnDirect3DCreate8 = (FNDIRECT3DCREATE8)GetProcAddress(dx8Globals.hD3D8DLL, "Direct3DCreate8");
+	if (dx8Globals.fnDirect3DCreate8 == NULL) {
+		FreeLibrary(dx8Globals.hD3D8DLL);
+		return FALSE;
+	}
+*/
+	
+	// Initialise D3DX
+	return FAILED(D3DXInitialize()) ? FALSE : TRUE;
+}
+
+//---------------------------------------------------------------------------
+
+BOOL gldDestroyPrivateGlobals_DX(void)
+{
+/*
+	if (dx7Globals.bDirect3DDevice) {
+		SAFE_RELEASE(dx7Globals.pDev);
+		dx7Globals.bDirect3DDevice = FALSE;
+	}
+	if (dx7Globals.bDirect3D) {
+		SAFE_RELEASE(dx7Globals.pD3D);
+		dx7Globals.bDirect3D = FALSE;
+	}
+
+	FreeLibrary(dx8Globals.hD3D8DLL);
+	dx8Globals.hD3D8DLL = NULL;
+	dx8Globals.fnDirect3DCreate8 = NULL;
+*/
+	return FAILED(D3DXUninitialize()) ? FALSE : TRUE;
+}
+
+//---------------------------------------------------------------------------
+
+static void _BitsFromDisplayFormat(
+	D3DX_SURFACEFORMAT fmt,
+	BYTE *cColorBits,
+	BYTE *cRedBits,
+	BYTE *cGreenBits,
+	BYTE *cBlueBits,
+	BYTE *cAlphaBits)
+{
+	switch (fmt) {
+/*	case D3DX_SF_X1R5G5B5:
+		*cColorBits = 16;
+		*cRedBits = 5;
+		*cGreenBits = 5;
+		*cBlueBits = 5;
+		*cAlphaBits = 0;
+		return;*/
+	case D3DX_SF_R5G5B5:
+		*cColorBits = 16;
+		*cRedBits = 5;
+		*cGreenBits = 5;
+		*cBlueBits = 5;
+		*cAlphaBits = 0;
+		return;
+	case D3DX_SF_R5G6B5:
+		*cColorBits = 16;
+		*cRedBits = 5;
+		*cGreenBits = 6;
+		*cBlueBits = 5;
+		*cAlphaBits = 0;
+		return;
+	case D3DX_SF_X8R8G8B8:
+		*cColorBits = 32;
+		*cRedBits = 8;
+		*cGreenBits = 8;
+		*cBlueBits = 8;
+		*cAlphaBits = 0;
+		return;
+	case D3DX_SF_A8R8G8B8:
+		*cColorBits = 32;
+		*cRedBits = 8;
+		*cGreenBits = 8;
+		*cBlueBits = 8;
+		*cAlphaBits = 8;
+		return;
+	}
+
+	// Should not get here!
+	*cColorBits = 32;
+	*cRedBits = 8;
+	*cGreenBits = 8;
+	*cBlueBits = 8;
+	*cAlphaBits = 0;
+}
+
+//---------------------------------------------------------------------------
+
+static void _BitsFromDepthStencilFormat(
+	D3DX_SURFACEFORMAT fmt,
+	BYTE *cDepthBits,
+	BYTE *cStencilBits)
+{
+	// NOTE: GL expects either 32 or 16 as depth bits.
+	switch (fmt) {
+	case D3DX_SF_Z16S0:
+		*cDepthBits = 16;
+		*cStencilBits = 0;
+		return;
+	case D3DX_SF_Z32S0:
+		*cDepthBits = 32;
+		*cStencilBits = 0;
+		return;
+	case D3DX_SF_Z15S1:
+		*cDepthBits = 15;
+		*cStencilBits = 1;
+		return;
+	case D3DX_SF_Z24S8:
+		*cDepthBits = 24;
+		*cStencilBits = 8;
+		return;
+	case D3DX_SF_S1Z15:
+		*cDepthBits = 15;
+		*cStencilBits = 1;
+		return;
+	case D3DX_SF_S8Z24:
+		*cDepthBits = 24;
+		*cStencilBits = 8;
+		return;
+	}
+}
+
+//---------------------------------------------------------------------------
+/*
+BOOL GLD_CheckDepthStencilMatch(
+	DWORD dwDeviceIndex,
+	D3DX_SURFACEFORMAT sfWant)
+{
+	// Emulate function built in to DX9
+	D3DX_SURFACEFORMAT	sfFound;
+	int i;
+	int nFormats = D3DXGetMaxSurfaceFormats(dwDeviceIndex, NULL, D3DX_SC_DEPTHBUFFER);
+	if (nFormats) {
+		for (i=0; i<nFormats; i++) {
+		D3DXGetSurfaceFormat(dwDeviceIndex, NULL, D3DX_SC_DEPTHBUFFER, i, &sfFound);		}
+		if (sfFound == sfWant)
+			return TRUE;
+	}
+
+	return FALSE;
+}
+*/
+//---------------------------------------------------------------------------
+
+D3DX_SURFACEFORMAT _gldFindCompatibleDepthStencilFormat(
+	DWORD dwDeviceIndex)
+{
+	// Jump through some hoops...
+
+	ID3DXContext		*pD3DXContext = NULL;
+	IDirectDrawSurface7	*pZBuffer = NULL;
+	DDPIXELFORMAT		ddpf;
+	HWND				hWnd;
+
+	// Get an HWND - use Desktop's
+	hWnd = GetDesktopWindow();
+
+	// Create a fully specified default context.
+	D3DXCreateContextEx(dwDeviceIndex, 0, hWnd, (HWND)D3DX_DEFAULT,
+						D3DX_DEFAULT, D3DX_DEFAULT, D3DX_DEFAULT, D3DX_DEFAULT,
+						D3DX_DEFAULT, D3DX_DEFAULT, D3DX_DEFAULT, D3DX_DEFAULT,
+						&pD3DXContext);
+
+	// Obtain depth buffer that was created in context
+	pZBuffer = pD3DXContext->lpVtbl->GetZBuffer(pD3DXContext);
+
+	// Get pixel format of depth buffer
+	ddpf.dwSize = sizeof(ddpf);
+	pZBuffer->lpVtbl->GetPixelFormat(pZBuffer, &ddpf);
+	// Done with surface - release it
+	pZBuffer->lpVtbl->Release(pZBuffer);
+
+	// Done with D3DX context
+	pD3DXContext->lpVtbl->Release(pD3DXContext);
+
+	// Convert and return
+	return D3DXMakeSurfaceFormat(&ddpf);
+}
+
+//---------------------------------------------------------------------------
+
+BOOL gldBuildPixelformatList_DX(void)
+{
+	D3DX_DEVICEDESC		d3dxdd;
+	D3DX_VIDMODEDESC	d3ddm;
+	D3DX_SURFACEFORMAT	fmt[64]; // 64 should be enough...
+	DWORD				dwDeviceIndex;
+	DWORD				surfClassFlags;
+//	IDirect3D7			*pD3D = NULL;
+	HRESULT				hr;
+	int					nSupportedFormats = 0;		// Total formats
+	int					nDepthOnlyFormats = 0;
+	int					nDepthStencilFormats = 0;
+	int					i;
+	DGL_pixelFormat		*pPF;
+	BYTE				cColorBits, cRedBits, cGreenBits, cBlueBits, cAlphaBits;
+//	char				buf[128];
+//	char				cat[8];
+
+	// Direct3D (SW or HW)
+	// These are arranged so that 'best' pixelformat
+	// is higher in the list (for ChoosePixelFormat).
+/*	const D3DFORMAT DepthStencil[4] = {
+		D3DX_SF_Z16S0, //D3DX_SF_D16,
+		D3DX_SF_Z15S1, //D3DX_SF_D15S1,
+		D3DX_SF_Z32S0, //D3DX_SF_D32,
+		D3DX_SF_Z24S8, //D3DX_SF_D24S8,
+		//D3DX_SF_D24X8,
+		//D3DX_SF_D24X4S4,
+	};*/
+
+	// Dump DX version
+	ddlogMessage(GLDLOG_SYSTEM, "DirectX Version  : 7.0\n");
+
+	// Release any existing pixelformat list
+	if (glb.lpPF) {
+		free(glb.lpPF);
+	}
+
+	glb.nPixelFormatCount	= 0;
+	glb.lpPF				= NULL;
+
+	//
+	// Pixelformats for Direct3D (SW or HW) rendering
+	//
+
+	dwDeviceIndex = (glb.dwDriver == GLDS_DRIVER_REF) ? D3DX_HWLEVEL_REFERENCE : D3DX_DEFAULT;
+
+	// Dump description
+	D3DXGetDeviceDescription(dwDeviceIndex, &d3dxdd);
+	ddlogPrintf(GLDLOG_SYSTEM, "Device: %s", d3dxdd.driverDesc);
+
+	// Get display mode
+	D3DXGetCurrentVideoMode(D3DX_DEFAULT, &d3ddm);
+
+#if 0
+	// Phooey - this don't work...
+/*
+	// Since D3DXGetMaxSurfaceFormats() can lie to us, we'll need a workaround.
+	// Explicitly test for matching depth/stencil to display bpp.
+	if (d3ddm.bpp <= 16) {
+		if (GLD_CheckDepthStencilMatch(dwDeviceIndex, D3DX_SF_Z16S0))
+			fmt[nSupportedFormats++] = D3DX_SF_Z16S0;
+		if (GLD_CheckDepthStencilMatch(dwDeviceIndex, D3DX_SF_Z15S1))
+			fmt[nSupportedFormats++] = D3DX_SF_Z15S1;
+		if (GLD_CheckDepthStencilMatch(dwDeviceIndex, D3DX_SF_S1Z15))
+			fmt[nSupportedFormats++] = D3DX_SF_S1Z15;
+		// Didn't find anything? Try default
+		if (nSupportedFormats == 0) {
+			if (GLD_CheckDepthStencilMatch(dwDeviceIndex, D3DX_SF_Z32S0))
+				fmt[nSupportedFormats++] = D3DX_SF_Z32S0;
+		}
+	} else {
+		if (GLD_CheckDepthStencilMatch(dwDeviceIndex, D3DX_SF_Z32S0))
+			fmt[nSupportedFormats++] = D3DX_SF_Z32S0;
+		if (GLD_CheckDepthStencilMatch(dwDeviceIndex, D3DX_SF_Z24S8))
+			fmt[nSupportedFormats++] = D3DX_SF_Z24S8;
+		if (GLD_CheckDepthStencilMatch(dwDeviceIndex, D3DX_SF_S8Z24))
+			fmt[nSupportedFormats++] = D3DX_SF_S8Z24;
+		// Didn't find anything? Try default
+		if (nSupportedFormats == 0) {
+			if (GLD_CheckDepthStencilMatch(dwDeviceIndex, D3DX_SF_Z16S0))
+				fmt[nSupportedFormats++] = D3DX_SF_Z16S0;
+		}
+	}
+*/
+	// Go the Whole Hog...
+	fmt[nSupportedFormats++] = _gldFindCompatibleDepthStencilFormat(dwDeviceIndex);
+#else
+	//
+	// Depth buffer formats WITHOUT stencil
+	//
+	surfClassFlags = D3DX_SC_DEPTHBUFFER;
+	nDepthOnlyFormats = D3DXGetMaxSurfaceFormats(dwDeviceIndex, NULL, surfClassFlags);
+	//
+	// Depth buffer formats WITH stencil
+	//
+	surfClassFlags = D3DX_SC_DEPTHBUFFER | D3DX_SC_STENCILBUFFER;
+	nDepthStencilFormats = D3DXGetMaxSurfaceFormats(dwDeviceIndex, NULL, surfClassFlags);
+
+	// Work out how many formats we have in total
+	if ((nDepthOnlyFormats + nDepthStencilFormats) == 0)
+		return FALSE; // Bail: no compliant pixelformats
+
+	// Get depth buffer formats WITHOUT stencil
+	surfClassFlags = D3DX_SC_DEPTHBUFFER;
+	for (i=0; i<nDepthOnlyFormats; i++) {
+		D3DXGetSurfaceFormat(dwDeviceIndex, NULL, surfClassFlags, i, &fmt[nSupportedFormats++]);
+	}
+	// NOTE: For some reason we already get stencil formats when only specifying D3DX_SC_DEPTHBUFFER
+	/*
+		// Get depth buffer formats WITH stencil
+		surfClassFlags = D3DX_SC_DEPTHBUFFER | D3DX_SC_STENCILBUFFER;
+		for (i=0; i<nDepthStencilFormats; i++) {
+			D3DXGetSurfaceFormat(dwDeviceIndex, NULL, surfClassFlags, i, &fmt[nSupportedFormats++]);
+		}
+	*/
+#endif
+
+	// Total count of pixelformats is:
+	// (nSupportedFormats+1)*2
+	glb.lpPF = (DGL_pixelFormat *)calloc((nSupportedFormats)*2, sizeof(DGL_pixelFormat));
+	glb.nPixelFormatCount = (nSupportedFormats)*2;
+	if (glb.lpPF == NULL) {
+		glb.nPixelFormatCount = 0;
+		return FALSE;
+	}
+
+	// Get a copy of pointer that we can alter
+	pPF = glb.lpPF;
+
+	// Cache colour bits from display format
+//	_BitsFromDisplayFormat(d3ddm.Format, &cColorBits, &cRedBits, &cGreenBits, &cBlueBits, &cAlphaBits);
+	// Get display mode
+	D3DXGetCurrentVideoMode(D3DX_DEFAULT, &d3ddm);
+	cColorBits = d3ddm.bpp;
+	cAlphaBits = 0;
+	switch (d3ddm.bpp) {
+	case 15:
+		cRedBits = 5; cGreenBits = 5; cBlueBits = 5;
+		break;
+	case 16:
+		cRedBits = 5; cGreenBits = 6; cBlueBits = 5;
+		break;
+	case 24:
+	case 32:
+		cRedBits = 8; cGreenBits = 8; cBlueBits = 8;
+		break;
+	default:
+		cRedBits = 5; cGreenBits = 5; cBlueBits = 5;
+	}
+
+	//
+	// Add single-buffer formats
+	//
+
+/*	// Single-buffer, no depth-stencil buffer
+	memcpy(pPF, &pfTemplateHW, sizeof(DGL_pixelFormat));
+	pPF->pfd.dwFlags &= ~PFD_DOUBLEBUFFER; // Remove doublebuffer flag
+	pPF->pfd.cColorBits		= cColorBits;
+	pPF->pfd.cRedBits		= cRedBits;
+	pPF->pfd.cGreenBits		= cGreenBits;
+	pPF->pfd.cBlueBits		= cBlueBits;
+	pPF->pfd.cAlphaBits		= cAlphaBits;
+	pPF->pfd.cDepthBits		= 0;
+	pPF->pfd.cStencilBits	= 0;
+	pPF->dwDriverData		= D3DX_SF_UNKNOWN;
+	pPF++;*/
+
+	for (i=0; i<nSupportedFormats; i++, pPF++) {
+		memcpy(pPF, &pfTemplateHW, sizeof(DGL_pixelFormat));
+		pPF->pfd.dwFlags &= ~PFD_DOUBLEBUFFER; // Remove doublebuffer flag
+		pPF->pfd.cColorBits		= cColorBits;
+		pPF->pfd.cRedBits		= cRedBits;
+		pPF->pfd.cGreenBits		= cGreenBits;
+		pPF->pfd.cBlueBits		= cBlueBits;
+		pPF->pfd.cAlphaBits		= cAlphaBits;
+		_BitsFromDepthStencilFormat(fmt[i], &pPF->pfd.cDepthBits, &pPF->pfd.cStencilBits);
+		pPF->dwDriverData		= fmt[i];
+	}
+
+	//
+	// Add double-buffer formats
+	//
+
+/*	memcpy(pPF, &pfTemplateHW, sizeof(DGL_pixelFormat));
+	pPF->pfd.cColorBits		= cColorBits;
+	pPF->pfd.cRedBits		= cRedBits;
+	pPF->pfd.cGreenBits		= cGreenBits;
+	pPF->pfd.cBlueBits		= cBlueBits;
+	pPF->pfd.cAlphaBits		= cAlphaBits;
+	pPF->pfd.cDepthBits		= 0;
+	pPF->pfd.cStencilBits	= 0;
+	pPF->dwDriverData		= D3DX_SF_UNKNOWN;
+	pPF++;*/
+
+	for (i=0; i<nSupportedFormats; i++, pPF++) {
+		memcpy(pPF, &pfTemplateHW, sizeof(DGL_pixelFormat));
+		pPF->pfd.cColorBits		= cColorBits;
+		pPF->pfd.cRedBits		= cRedBits;
+		pPF->pfd.cGreenBits		= cGreenBits;
+		pPF->pfd.cBlueBits		= cBlueBits;
+		pPF->pfd.cAlphaBits		= cAlphaBits;
+		_BitsFromDepthStencilFormat(fmt[i], &pPF->pfd.cDepthBits, &pPF->pfd.cStencilBits);
+		pPF->dwDriverData		= fmt[i];
+	}
+
+	// Popup warning message if non RGB color mode
+	{
+		// This is a hack. KeithH
+		HDC hdcDesktop = GetDC(NULL);
+		DWORD dwDisplayBitDepth = GetDeviceCaps(hdcDesktop, BITSPIXEL);
+		ReleaseDC(0, hdcDesktop);
+		if (dwDisplayBitDepth <= 8) {
+			ddlogPrintf(DDLOG_WARN, "Current Color Depth %d bpp is not supported", dwDisplayBitDepth);
+			MessageBox(NULL, szColorDepthWarning, "GLDirect", MB_OK | MB_ICONWARNING);
+		}
+	}
+
+	// Mark list as 'current'
+	glb.bPixelformatsDirty = FALSE;
+
+	return TRUE;
+}
+
+//---------------------------------------------------------------------------
+
+BOOL gldInitialiseMesa_DX(
+	DGL_ctx *lpCtx)
+{
+	GLD_driver_dx7	*gld = NULL;
+	int				MaxTextureSize, TextureLevels;
+	BOOL			bSoftwareTnL;
+
+	if (lpCtx == NULL)
+		return FALSE;
+
+	gld = lpCtx->glPriv;
+	if (gld == NULL)
+		return FALSE;
+
+	if (glb.bMultitexture) {
+		lpCtx->glCtx->Const.MaxTextureUnits = gld->d3dCaps.wMaxSimultaneousTextures;
+		// Only support MAX_TEXTURE_UNITS texture units.
+		// ** If this is altered then the FVF formats must be reviewed **.
+		if (lpCtx->glCtx->Const.MaxTextureUnits > GLD_MAX_TEXTURE_UNITS_DX7)
+			lpCtx->glCtx->Const.MaxTextureUnits = GLD_MAX_TEXTURE_UNITS_DX7;
+	} else {
+		// Multitexture override
+		lpCtx->glCtx->Const.MaxTextureUnits = 1;
+	}
+
+	// max texture size
+//	MaxTextureSize = min(gld->d3dCaps8.MaxTextureHeight, gld->d3dCaps8.MaxTextureWidth);
+	MaxTextureSize = min(gld->d3dCaps.dwMaxTextureHeight, gld->d3dCaps.dwMaxTextureWidth);
+	if (MaxTextureSize == 0)
+		MaxTextureSize = 256; // Sanity check
+
+	//
+	// HACK!!
+	if (MaxTextureSize > 1024)
+		MaxTextureSize = 1024; // HACK - CLAMP TO 1024
+	// HACK!!
+	//
+
+	// TODO: Check this again for Mesa 5
+	// Got to set MAX_TEXTURE_SIZE as max levels.
+	// Who thought this stupid idea up? ;)
+	TextureLevels = 0;
+	// Calculate power-of-two.
+	while (MaxTextureSize) {
+		TextureLevels++;
+		MaxTextureSize >>= 1;
+	}
+	lpCtx->glCtx->Const.MaxTextureLevels = (TextureLevels) ? TextureLevels : 8;
+
+	// Defaults
+	IDirect3DDevice7_SetRenderState(gld->pDev, D3DRENDERSTATE_LIGHTING, FALSE);
+	IDirect3DDevice7_SetRenderState(gld->pDev, D3DRENDERSTATE_CULLMODE, D3DCULL_NONE);
+	IDirect3DDevice7_SetRenderState(gld->pDev, D3DRENDERSTATE_DITHERENABLE, TRUE);
+	IDirect3DDevice7_SetRenderState(gld->pDev, D3DRENDERSTATE_SHADEMODE, D3DSHADE_GOURAUD);
+
+	// Set texture coord set to be used with each stage
+	IDirect3DDevice7_SetTextureStageState(gld->pDev, 0, D3DTSS_TEXCOORDINDEX, 0);
+	IDirect3DDevice7_SetTextureStageState(gld->pDev, 1, D3DTSS_TEXCOORDINDEX, 1);
+
+	// Set up Depth buffer
+	IDirect3DDevice7_SetRenderState(gld->pDev, D3DRENDERSTATE_ZENABLE,
+		(lpCtx->lpPF->dwDriverData!=D3DX_SF_UNKNOWN) ? D3DZB_TRUE : D3DZB_FALSE);
+
+	// Set the view matrix
+	{
+		D3DXMATRIX	vm;
+#if 1
+		D3DXMatrixIdentity(&vm);
+#else
+		D3DXVECTOR3 Eye(0.0f, 0.0f, 0.0f);
+		D3DXVECTOR3 At(0.0f, 0.0f, -1.0f);
+		D3DXVECTOR3 Up(0.0f, 1.0f, 0.0f);
+		D3DXMatrixLookAtRH(&vm, &Eye, &At, &Up);
+		vm._31 = -vm._31;
+		vm._32 = -vm._32;
+		vm._33 = -vm._33;
+		vm._34 = -vm._34;
+#endif
+		IDirect3DDevice7_SetTransform(gld->pDev, D3DTRANSFORMSTATE_VIEW, &vm);
+	}
+
+// DX7 does not support D3DRS_SOFTWAREVERTEXPROCESSING
+/*
+	if (gld->bHasHWTnL) {
+		if (glb.dwTnL == GLDS_TNL_DEFAULT)
+			bSoftwareTnL = FALSE; // HW TnL
+		else {
+			bSoftwareTnL = ((glb.dwTnL == GLDS_TNL_MESA) || (glb.dwTnL == GLDS_TNL_D3DSW)) ? TRUE : FALSE;
+		}
+	} else {
+		// No HW TnL, so no choice possible
+		bSoftwareTnL = TRUE;
+	}
+	IDirect3DDevice8_SetRenderState(gld->pDev, D3DRS_SOFTWAREVERTEXPROCESSING, bSoftwareTnL);
+*/
+
+// Dump this in a Release build as well, now.
+//#ifdef _DEBUG
+	ddlogPrintf(DDLOG_INFO, "HW TnL: %s",
+//		gld->bHasHWTnL ? (bSoftwareTnL ? "Disabled" : "Enabled") : "Unavailable");
+		gld->bHasHWTnL ? "Enabled" : "Unavailable");
+//#endif
+
+	// Set up interfaces to Mesa
+	gldEnableExtensions_DX7(lpCtx->glCtx);
+	gldInstallPipeline_DX7(lpCtx->glCtx);
+	gldSetupDriverPointers_DX7(lpCtx->glCtx);
+
+	// Signal a complete state update
+	lpCtx->glCtx->Driver.UpdateState(lpCtx->glCtx, _NEW_ALL);
+
+	// Start a scene
+	IDirect3DDevice7_BeginScene(gld->pDev);
+	lpCtx->bSceneStarted = TRUE;
+
+	return TRUE;
+}
+
+//---------------------------------------------------------------------------
+
+BOOL gldSwapBuffers_DX(
+	DGL_ctx *ctx,
+	HDC hDC,
+	HWND hWnd)
+{
+	HRESULT			hr;
+	GLD_driver_dx7	*gld = NULL;
+	DWORD			dwFlags;
+
+	if (ctx == NULL)
+		return FALSE;
+
+	gld = ctx->glPriv;
+	if (gld == NULL)
+		return FALSE;
+
+
+	// End the scene if one is started
+	if (ctx->bSceneStarted) {
+		IDirect3DDevice7_EndScene(gld->pDev);
+		ctx->bSceneStarted = FALSE;
+	}
+
+	// Needed by D3DX for MDI multi-window apps (DaveM)
+	if (lpDDClipper)
+		IDirectDrawClipper_SetHWnd(lpDDClipper, 0, hWnd);
+
+	// Swap the buffers. hWnd may override the hWnd used for CreateDevice()
+//	hr = IDirect3DDevice8_Present(gld->pDev, NULL, NULL, hWnd, NULL);
+
+	// Set refresh sync flag
+	dwFlags = glb.bWaitForRetrace ? 0 : D3DX_UPDATE_NOVSYNC;
+	// Render and show frame
+	hr = gld->pD3DXContext->lpVtbl->UpdateFrame(gld->pD3DXContext, dwFlags);
+	if (FAILED(hr)) 
+		ddlogError(DDLOG_WARN, "gldSwapBuffers_DX: UpdateFrame", hr);
+
+	if (hr == DDERR_SURFACELOST) {
+	hr = gld->pD3DXContext->lpVtbl->RestoreSurfaces(gld->pD3DXContext);
+	if (FAILED(hr)) 
+		ddlogError(DDLOG_WARN, "gldSwapBuffers_DX: RestoreSurfaces", hr);
+	}
+
+exit_swap:
+	// Begin a new scene
+	IDirect3DDevice7_BeginScene(gld->pDev);
+	ctx->bSceneStarted = TRUE;
+
+	return (FAILED(hr)) ? FALSE : TRUE;
+}
+
+//---------------------------------------------------------------------------
+
+BOOL gldGetDisplayMode_DX(
+	DGL_ctx *ctx,
+	GLD_displayMode *glddm)
+{
+//	D3DDISPLAYMODE		d3ddm;
+	D3DX_VIDMODEDESC	d3ddm;
+	HRESULT				hr;
+	GLD_driver_dx7		*lpCtx = NULL;
+	BYTE cColorBits, cRedBits, cGreenBits, cBlueBits, cAlphaBits;
+
+	if ((glddm == NULL) || (ctx == NULL))
+		return FALSE;
+
+	lpCtx = ctx->glPriv;
+	if (lpCtx == NULL)
+		return FALSE;
+
+	if (lpCtx->pD3D == NULL)
+		return FALSE;
+
+//	hr = IDirect3D8_GetAdapterDisplayMode(lpCtx->pD3D, glb.dwAdapter, &d3ddm);
+	hr = D3DXGetCurrentVideoMode(D3DX_DEFAULT, &d3ddm);
+	if (FAILED(hr))
+		return FALSE;
+
+	// Get info from the display format
+//	_BitsFromDisplayFormat(d3ddm.Format,
+//		&cColorBits, &cRedBits, &cGreenBits, &cBlueBits, &cAlphaBits);
+
+	glddm->Width	= d3ddm.width;
+	glddm->Height	= d3ddm.height;
+	glddm->BPP		= d3ddm.bpp;
+	glddm->Refresh	= d3ddm.refreshRate;
+
+	return TRUE;
+}
+
+//---------------------------------------------------------------------------
+