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, 149 insertions, 0 deletions

diff --git a/src/mesa/drivers/windows/gldirect/dglglobals.c b/src/mesa/drivers/windows/gldirect/dglglobals.c
new file mode 100644
index 00000000000..c633e3bcfab
--- /dev/null
+++ b/src/mesa/drivers/windows/gldirect/dglglobals.c
@@ -0,0 +1,149 @@
+/****************************************************************************
+*
+*                        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:  Global variables.
+*
+****************************************************************************/
+
+#include "dglglobals.h"
+
+// =======================================================================
+// Global Variables
+// =======================================================================
+
+char szCopyright[]	= "Copyright (c) 1998 SciTech Software, Inc.";
+char szDllName[]	= "Scitech GLDirect";
+char szErrorTitle[]	= "GLDirect Error";
+
+DGL_globals glb;
+
+// Shared result variable
+HRESULT hResult;
+
+// ***********************************************************************
+
+// Patch function for missing function in Mesa
+int finite(
+	double x)
+{
+	return _finite(x);
+};
+
+// ***********************************************************************
+
+void dglInitGlobals()
+{
+    // Zero all fields just in case
+    memset(&glb, 0, sizeof(glb));
+
+	// Set the global defaults
+	glb.bPrimary			= FALSE;		// Not the primary device
+	glb.bHardware			= FALSE;		// Not a hardware device
+//	glb.bFullscreen			= FALSE;		// Not running fullscreen
+	glb.bSquareTextures		= FALSE;		// Device does not need sq
+	glb.bPAL8				= FALSE;		// Device cannot do 8bit
+	glb.dwMemoryType		= DDSCAPS_SYSTEMMEMORY;
+	glb.dwRendering			= DGL_RENDER_D3D;
+
+	glb.bWaitForRetrace		= TRUE;			// Sync to vertical retrace
+	glb.bFullscreenBlit		= FALSE;
+
+	glb.nPixelFormatCount	= 0;
+	glb.lpPF				= NULL;			// Pixel format list
+#ifndef _USE_GLD3_WGL
+	glb.nZBufferPFCount		= 0;
+	glb.lpZBufferPF			= NULL;
+	glb.nDisplayModeCount	= 0;
+	glb.lpDisplayModes		= NULL;
+	glb.nTextureFormatCount	= 0;
+	glb.lpTextureFormat		= NULL;
+#endif // _USE_GLD3_WGL
+
+	glb.wMaxSimultaneousTextures = 1;
+
+	// Enable support for multitexture, if available.
+	glb.bMultitexture		= TRUE;
+
+	// Enable support for mipmapping
+	glb.bUseMipmaps			= TRUE;
+
+	// Alpha emulation via chroma key
+	glb.bEmulateAlphaTest	= FALSE;
+
+	// Use Mesa pipeline always (for compatibility)
+	glb.bForceMesaPipeline	= FALSE;
+
+	// Init support for multiple GLRCs
+	glb.bDirectDraw			= FALSE;
+	glb.bDirectDrawPrimary	= FALSE;
+	glb.bDirect3D			= FALSE;
+	glb.bDirect3DDevice		= FALSE;
+	glb.bDirectDrawStereo	= FALSE;
+	glb.iDirectDrawStereo	= 0;
+	glb.hWndActive			= NULL;
+	// Init DirectX COM interfaces for multiple GLRCs
+//	glb.lpDD4				= NULL;
+//	glb.lpPrimary4			= NULL;
+//	glb.lpBack4				= NULL;
+//	glb.lpDepth4			= NULL;
+//	glb.lpGlobalPalette		= NULL;
+
+	// Init special support options
+	glb.bMessageBoxWarnings = TRUE;
+	glb.bDirectDrawPersistant = FALSE;
+	glb.bPersistantBuffers	= FALSE;
+
+	// Do not assume single-precision-only FPU (for compatibility)
+	glb.bFastFPU			= FALSE;
+
+	// Allow hot-key support
+	glb.bHotKeySupport		= TRUE;
+
+	// Default to single-threaded support (for simplicity)
+	glb.bMultiThreaded		= FALSE;
+
+	// Use application-specific customizations (for end-user convenience)
+	glb.bAppCustomizations	= TRUE;
+
+#ifdef _USE_GLD3_WGL
+	// Registry/ini-file settings for GLDirect 3.x
+	glb.dwAdapter				= 0;	// Primary DX8 adapter
+	glb.dwTnL					= 1;	// MesaSW TnL
+	glb.dwMultisample			= 0;	// Multisample Off
+	glb.dwDriver				= 2;	// Direct3D HW
+
+	// Signal a pixelformat list rebuild
+	glb.bPixelformatsDirty		= TRUE;
+#endif
+}
+
+// ***********************************************************************