initial import

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diff --git a/vcl/win/source/gdi/salogl.cxx b/vcl/win/source/gdi/salogl.cxx
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index 000000000000..bdd5ccee00e8
--- /dev/null
+++ b/vcl/win/source/gdi/salogl.cxx
@@ -0,0 +1,329 @@
+/*************************************************************************
+ *
+ *  $RCSfile: salogl.cxx,v $
+ *
+ *  $Revision: 1.1.1.1 $
+ *
+ *  last change: $Author: hr $ $Date: 2000-09-18 17:05:49 $
+ *
+ *  The Contents of this file are made available subject to the terms of
+ *  either of the following licenses
+ *
+ *         - GNU Lesser General Public License Version 2.1
+ *         - Sun Industry Standards Source License Version 1.1
+ *
+ *  Sun Microsystems Inc., October, 2000
+ *
+ *  GNU Lesser General Public License Version 2.1
+ *  =============================================
+ *  Copyright 2000 by Sun Microsystems, Inc.
+ *  901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License version 2.1, as published by the Free Software Foundation.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *  MA  02111-1307  USA
+ *
+ *
+ *  Sun Industry Standards Source License Version 1.1
+ *  =================================================
+ *  The contents of this file are subject to the Sun Industry Standards
+ *  Source License Version 1.1 (the "License"); You may not use this file
+ *  except in compliance with the License. You may obtain a copy of the
+ *  License at http://www.openoffice.org/license.html.
+ *
+ *  Software provided under this License is provided on an "AS IS" basis,
+ *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ *  See the License for the specific provisions governing your rights and
+ *  obligations concerning the Software.
+ *
+ *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+ *
+ *  Copyright: 2000 by Sun Microsystems, Inc.
+ *
+ *  All Rights Reserved.
+ *
+ *  Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+#ifndef _SVWIN_H
+#include <tools/svwin.h>
+#endif
+
+#define _SV_SALOGL_CXX
+
+#ifndef _SV_SALOGL_HXX
+#include <salogl.hxx>
+#endif
+#ifndef _SV_SALGDI_HXX
+#include <salgdi.hxx>
+#endif
+
+// -------------------------------
+// - Additional typedefs for init.
+// -------------------------------
+
+typedef HGLRC   ( *OGLFncCreateContext )( HDC hDC );
+typedef BOOL    ( *OGLFncDeleteContext )( HGLRC hContext );
+typedef HGLRC   ( *OGLFncGetCurrentContext )( VOID );
+typedef void    ( *OGLFncMakeCurrent )( HDC hDC, HGLRC hContext  );
+
+// ------------
+// - Lib-Name -
+// ------------
+
+#define OGL_LIBNAME "OPENGL32.DLL"
+
+// ----------
+// - Macros -
+// ----------
+
+#define INIT_OGLFNC_WGL( FncName ) static OGLFnc##FncName pImplOpenWGLFnc##FncName = NULL;
+#define GET_OGLFNC_WGL( FncName )                                                               \
+pImplOpenWGLFnc##FncName = (OGLFnc##FncName##) GetProcAddress( hImplOGLLib, "wgl" #FncName );   \
+if( !pImplOpenWGLFnc##FncName ) bRet = FALSE;
+
+// -----------------
+// - Statics init. -
+// -----------------
+
+// Members
+static HINSTANCE    hImplOGLLib;
+HGLRC               SalOpenGL::mhOGLContext = 0;
+HDC                 SalOpenGL::mhOGLLastDC = 0;
+ULONG               SalOpenGL::mnOGLState = OGL_STATE_UNLOADED;
+
+INIT_OGLFNC_WGL( CreateContext );
+INIT_OGLFNC_WGL( DeleteContext );
+INIT_OGLFNC_WGL( GetCurrentContext );
+INIT_OGLFNC_WGL( MakeCurrent );
+
+// -----------
+// - WndProc -
+// -----------
+
+LRESULT CALLBACK OpenGLWndProc( HWND hWnd,UINT nMsg, WPARAM nPar1, LPARAM nPar2 )
+{
+    return DefWindowProc( hWnd, nMsg, nPar1, nPar2 );
+}
+
+// -------------
+// - SalOpenGL -
+// -------------
+
+SalOpenGL::SalOpenGL( SalGraphics* pGraphics )
+{
+    // Set mhOGLLastDC only the first time a
+    // SalOpenGL object is created; we need
+    // this DC in SalOpenGL::Create();
+    if ( OGL_STATE_UNLOADED == mnOGLState )
+        mhOGLLastDC = pGraphics->maGraphicsData.mhDC;
+}
+
+// ------------------------------------------------------------------------
+
+SalOpenGL::~SalOpenGL()
+{
+}
+
+// ------------------------------------------------------------------------
+
+BOOL SalOpenGL::Create()
+{
+    BOOL bRet = FALSE;
+
+    if ( OGL_STATE_UNLOADED == mnOGLState )
+    {
+        if( ImplInitLib() )
+        {
+            USHORT nBitCount = GetDeviceCaps( mhOGLLastDC, BITSPIXEL );
+            PIXELFORMATDESCRIPTOR pfd =
+            {
+                sizeof( PIXELFORMATDESCRIPTOR ),
+                1,
+                PFD_DRAW_TO_WINDOW | PFD_SUPPORT_GDI | PFD_SUPPORT_OPENGL,
+                PFD_TYPE_RGBA,
+                (BYTE) nBitCount,
+                0, 0, 0, 0, 0, 0,
+                0,
+                0,
+                0,
+                0, 0, 0, 0,
+                16,
+                0,
+                0,
+                PFD_MAIN_PLANE,
+                0,
+                0, 0, 0
+            };
+
+            const int nIndex = ChoosePixelFormat( mhOGLLastDC, &pfd );
+
+            if( nIndex && SetPixelFormat( mhOGLLastDC, nIndex, &pfd ) )
+            {
+                if ( (nBitCount > 8) && ImplInit() &&
+                     (mhOGLContext = pImplOpenWGLFncCreateContext( mhOGLLastDC )) != 0 )
+                {
+                    WNDCLASS    aWc;
+                    HWND        hDummyWnd;
+
+                    SaveDC( mhOGLLastDC );
+                    SelectClipRgn( mhOGLLastDC, NULL );
+                    pImplOpenWGLFncMakeCurrent( mhOGLLastDC, mhOGLContext );
+                    RestoreDC( mhOGLLastDC, -1 );
+                    mnOGLState = OGL_STATE_VALID;
+                    bRet = TRUE;
+
+                    memset( &aWc, 0, sizeof( aWc ) );
+                    aWc.hInstance = GetModuleHandle( NULL );
+                    aWc.lpfnWndProc = OpenGLWndProc;
+                    aWc.lpszClassName = "OpenGLWnd";
+                    RegisterClass( &aWc );
+                    hDummyWnd = CreateWindow( aWc.lpszClassName, NULL, WS_OVERLAPPED, 0, -50, 1, 1, HWND_DESKTOP, NULL, aWc.hInstance, 0 );
+                    ShowWindow( hDummyWnd, SW_SHOW );
+                    DestroyWindow( hDummyWnd );
+                    UnregisterClass( aWc.lpszClassName, aWc.hInstance );
+                }
+                else
+                {
+                    ImplFreeLib();
+                    mnOGLState = OGL_STATE_INVALID;
+                }
+            }
+            else
+                mnOGLState = OGL_STATE_INVALID;
+        }
+        else
+            mnOGLState = OGL_STATE_INVALID;
+    }
+    else if( OGL_STATE_VALID == mnOGLState )
+        bRet = TRUE;
+
+    return bRet;
+}
+
+// ------------------------------------------------------------------------
+
+void SalOpenGL::Release()
+{
+    ImplFreeLib();
+}
+
+// ------------------------------------------------------------------------
+
+void* SalOpenGL::GetOGLFnc( const char* pFncName )
+{
+    if ( hImplOGLLib )
+        return (void*)GetProcAddress( hImplOGLLib, pFncName );
+    else
+        return NULL;
+}
+
+// ------------------------------------------------------------------------
+
+typedef BOOL (WINAPI *MyFuncType)(HDC, HGLRC);
+
+void SalOpenGL::OGLEntry( SalGraphics* pGraphics )
+{
+    if ( pGraphics->maGraphicsData.mhDC != mhOGLLastDC )
+    {
+        PIXELFORMATDESCRIPTOR pfd =
+        {
+            sizeof( PIXELFORMATDESCRIPTOR ),
+            1,
+            PFD_DRAW_TO_WINDOW | PFD_SUPPORT_GDI | PFD_SUPPORT_OPENGL,
+            PFD_TYPE_RGBA,
+            GetDeviceCaps( pGraphics->maGraphicsData.mhDC, BITSPIXEL ),
+            0, 0, 0, 0, 0, 0,
+            0,
+            0,
+            0,
+            0, 0, 0, 0,
+            16,
+            0,
+            0,
+            PFD_MAIN_PLANE,
+            0,
+            0, 0, 0
+        };
+
+        const int nIndex = ChoosePixelFormat( pGraphics->maGraphicsData.mhDC, &pfd );
+        if ( nIndex && SetPixelFormat( pGraphics->maGraphicsData.mhDC, nIndex, &pfd ) )
+        {
+            WNDCLASS    aWc;
+            HWND        hDummyWnd;
+
+            pImplOpenWGLFncDeleteContext( mhOGLContext );
+            mhOGLLastDC = pGraphics->maGraphicsData.mhDC;
+            mhOGLContext = pImplOpenWGLFncCreateContext( mhOGLLastDC );
+
+            SaveDC( mhOGLLastDC );
+            SelectClipRgn( mhOGLLastDC, NULL );
+            pImplOpenWGLFncMakeCurrent( mhOGLLastDC, mhOGLContext );
+            RestoreDC( mhOGLLastDC, -1 );
+
+            memset( &aWc, 0, sizeof( aWc ) );
+            aWc.hInstance = GetModuleHandle( NULL );
+            aWc.lpfnWndProc = OpenGLWndProc;
+            aWc.lpszClassName = "OpenGLWnd";
+            RegisterClass( &aWc );
+            hDummyWnd = CreateWindow( aWc.lpszClassName, NULL, WS_OVERLAPPED, 0, -50, 1, 1, HWND_DESKTOP, NULL, aWc.hInstance, 0 );
+            ShowWindow( hDummyWnd, SW_SHOW );
+            DestroyWindow( hDummyWnd );
+            UnregisterClass( aWc.lpszClassName, aWc.hInstance );
+        }
+    }
+}
+
+// ------------------------------------------------------------------------
+
+void SalOpenGL::OGLExit( SalGraphics* pGraphics )
+{
+}
+
+// ------------------------------------------------------------------------
+
+BOOL SalOpenGL::ImplInitLib()
+{
+    return ((hImplOGLLib = LoadLibrary( OGL_LIBNAME )) != NULL);
+}
+
+// ------------------------------------------------------------------------
+
+void SalOpenGL::ImplFreeLib()
+{
+    if ( hImplOGLLib )
+    {
+        FreeLibrary( hImplOGLLib );
+        hImplOGLLib = NULL;
+        mnOGLState = OGL_STATE_UNLOADED;
+    }
+}
+
+// ------------------------------------------------------------------------
+
+BOOL SalOpenGL::ImplInit()
+{
+    BOOL bRet = TRUE;
+
+    // Internal use
+    GET_OGLFNC_WGL( CreateContext );
+    GET_OGLFNC_WGL( DeleteContext );
+    GET_OGLFNC_WGL( GetCurrentContext );
+    GET_OGLFNC_WGL( MakeCurrent );
+
+    return bRet;
+}