264 lines
7.4 KiB
C++
264 lines
7.4 KiB
C++
/*************************************************************************
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*
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* $RCSfile: salogl.cxx,v $
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*
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* $Revision: 1.1.1.1 $
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*
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* last change: $Author: hr $ $Date: 2000-09-18 17:05:34 $
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*
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* The Contents of this file are made available subject to the terms of
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* either of the following licenses
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*
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* - GNU Lesser General Public License Version 2.1
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* - Sun Industry Standards Source License Version 1.1
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*
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* Sun Microsystems Inc., October, 2000
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2000 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*
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* Sun Industry Standards Source License Version 1.1
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* =================================================
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* The contents of this file are subject to the Sun Industry Standards
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* Source License Version 1.1 (the "License"); You may not use this file
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* except in compliance with the License. You may obtain a copy of the
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* License at http://www.openoffice.org/license.html.
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*
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* Software provided under this License is provided on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
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* See the License for the specific provisions governing your rights and
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* obligations concerning the Software.
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*
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* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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*
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* Copyright: 2000 by Sun Microsystems, Inc.
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*
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* All Rights Reserved.
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*
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* Contributor(s): _______________________________________
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*
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*
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************************************************************************/
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#include <malloc.h>
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#define INCL_DOSMODULEMGR
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#include <tools/svpm.h>
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#define _SV_SALOGL_CXX
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#ifndef _SV_SALOGL_HXX
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#include <salogl.hxx>
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#endif
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#ifndef _SV_SALGDI_HXX
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#include <salgdi.hxx>
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#endif
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#ifndef _SV_SALDATA_HXX
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#include <saldata.hxx>
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#endif
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// ------------
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// - Typedefs -
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// ------------
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typedef VISUALCONFIG* PCFG;
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// ------------
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// - Lib-Name -
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// ------------
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#define OGL_LIBNAME "OPENGL"
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// ----------
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// - Macros -
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// ----------
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#define GET_OGLFNC_PGL( FncName ) \
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nResult = DosQueryProcAddr( mhOGLLib, 0, "pgl" #FncName, (PFN*)&pFnc##FncName ); \
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if( nResult != 0 ) \
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bRet = FALSE;
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// ------------------------------------------------------------------------
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#define GET_OGLFNC_GL( FncName ) \
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nResult = DosQueryProcAddr( mhOGLLib, 0, "gl" #FncName, (PFN*)&pFnc##FncName ); \
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if( nResult != 0 ) \
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bRet = FALSE;
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// -----------------
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// - Statics init. -
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// -----------------
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// Members
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HMODULE SalOpenGL::mhOGLLib = 0;
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HGC SalOpenGL::mhOGLContext = 0;
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HDC SalOpenGL::mhOGLLastDC = 0;
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ULONG SalOpenGL::mnOGLState = OGL_STATE_UNLOADED;
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// Internal use
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INIT_OGLFNC( SalOpenGL, ChooseConfig );
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INIT_OGLFNC( SalOpenGL, QueryConfigs );
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INIT_OGLFNC( SalOpenGL, CreateContext );
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INIT_OGLFNC( SalOpenGL, DestroyContext );
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INIT_OGLFNC( SalOpenGL, GetCurrentContext );
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INIT_OGLFNC( SalOpenGL, MakeCurrent );
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INIT_OGLFNC( SalOpenGL, QueryCapability );
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// -------------
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// - SalOpenGL -
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// -------------
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SalOpenGL::SalOpenGL( SalGraphics* pGraphics )
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{
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// Set mhOGLLastDC only the first time a
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// SalOpenGL object is created; we need
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// this DC in SalOpenGL::Create();
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if( OGL_STATE_UNLOADED == mnOGLState )
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mhOGLLastDC = pGraphics->maGraphicsData.mhDC;
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}
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// ------------------------------------------------------------------------
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SalOpenGL::~SalOpenGL()
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{
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}
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// ------------------------------------------------------------------------
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BOOL SalOpenGL::Create()
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{
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BOOL bRet = FALSE;
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if( OGL_STATE_UNLOADED == mnOGLState )
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{
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if( ImplInitLib() )
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{
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/*
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if( ImplInit() )
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{
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HAB hAB = GetSalData()->mhAB;
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VISUALCONFIG aCfg = { PGL_RGBA, PGL_RED_SIZE, 4, PGL_GREEN_SIZE, 4,PGL_BLUE_SIZE, 4, PGL_DOUBLEBUFFER, 0 };
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PCFG* ppCfgs = pFncQueryConfigs( hAB );
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if( *ppCfgs )
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{
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if( ( mhOGLContext = pFncCreateContext( hAB, *ppCfgs, NULL, FALSE ) ) != 0 )
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{
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pFncMakeCurrent( hAB, mhOGLContext, WinWindowFromDC( mhOGLLastDC ) );
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mnOGLState = OGL_STATE_VALID;
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bRet = TRUE;
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}
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}
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}
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*/
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if( !bRet )
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{
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ImplFreeLib();
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mnOGLState = OGL_STATE_INVALID;
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}
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}
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else
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mnOGLState = OGL_STATE_INVALID;
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}
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else if( OGL_STATE_VALID == mnOGLState )
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bRet = TRUE;
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return bRet;
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}
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// ------------------------------------------------------------------------
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void SalOpenGL::Release()
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{
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ImplFreeLib();
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}
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// ------------------------------------------------------------------------
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void* SalOpenGL::GetOGLFnc( const String& rFncName )
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{
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void* pRet;
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if( mhOGLLib )
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{
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APIRET rc;
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PFN pFunction;
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rc = DosQueryProcAddr( mhOGLLib, 0, rFncName, &pFunction );
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pRet = rc == NULL ? pFunction : NULL;
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}
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else
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pRet = NULL;
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return pRet;
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}
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// ------------------------------------------------------------------------
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void SalOpenGL::OGLEntry( SalGraphics* pGraphics )
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{
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if( pGraphics->maGraphicsData.mhDC != mhOGLLastDC )
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{
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mhOGLLastDC = pGraphics->maGraphicsData.mhDC;
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pFncMakeCurrent( GetSalData()->mhAB, mhOGLContext, WinWindowFromDC( mhOGLLastDC ) );
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}
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}
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// ------------------------------------------------------------------------
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void SalOpenGL::OGLExit( SalGraphics* pGraphics )
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{
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}
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// ------------------------------------------------------------------------
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BOOL SalOpenGL::ImplInitLib()
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{
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DosLoadModule ((PSZ)0, 0, OGL_LIBNAME, &mhOGLLib );
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return( mhOGLLib != NULL );
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}
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// ------------------------------------------------------------------------
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void SalOpenGL::ImplFreeLib()
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{
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if( mhOGLLib )
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DosFreeModule( mhOGLLib );
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}
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// ------------------------------------------------------------------------
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BOOL SalOpenGL::ImplInit()
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{
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ULONG nResult;
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BOOL bRet = TRUE;
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// Internal use
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GET_OGLFNC_PGL( ChooseConfig );
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GET_OGLFNC_PGL( QueryConfigs );
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GET_OGLFNC_PGL( CreateContext );
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GET_OGLFNC_PGL( DestroyContext );
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GET_OGLFNC_PGL( GetCurrentContext );
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GET_OGLFNC_PGL( MakeCurrent );
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GET_OGLFNC_PGL( QueryCapability );
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return bRet;
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}
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