glutils.hpp

ncbi源码

/*
 * ===========================================================================
 * PRODUCTION $Log: glutils.hpp,v $
 * PRODUCTION Revision 1000.1  2004/06/01 19:50:28  gouriano
 * PRODUCTION PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.9
 * PRODUCTION
 * ===========================================================================
 */

#ifndef GUI_OPENGL___GL_UTILS__HPP
#define GUI_OPENGL___GL_UTILS__HPP

/*  $Id: glutils.hpp,v 1000.1 2004/06/01 19:50:28 gouriano Exp $
 * ===========================================================================
 *
 *                            PUBLIC DOMAIN NOTICE
 *               National Center for Biotechnology Information
 *
 *  This software/database is a "United States Government Work" under the
 *  terms of the United States Copyright Act.  It was written as part of
 *  the author's official duties as a United States Government employee and
 *  thus cannot be copyrighted.  This software/database is freely available
 *  to the public for use. The National Library of Medicine and the U.S.
 *  Government have not placed any restriction on its use or reproduction.
 *
 *  Although all reasonable efforts have been taken to ensure the accuracy
 *  and reliability of the software and data, the NLM and the U.S.
 *  Government do not and cannot warrant the performance or results that
 *  may be obtained by using this software or data. The NLM and the U.S.
 *  Government disclaim all warranties, express or implied, including
 *  warranties of performance, merchantability or fitness for any particular
 *  purpose.
 *
 *  Please cite the author in any work or product based on this material.
 *
 * ===========================================================================
 *
 * Authors:  Mike DiCuccio
 *
 * File Description:
 *    OpenGL utility functions
 */


#include <corelib/ncbistd.hpp>
#include <gui/gui.hpp>

/** @addtogroup GUI_OPENGL
 *
 * @{
 */

BEGIN_NCBI_SCOPE


/////////////////////////////////////////////////////////////////////////////
//  CGlUtils::
//

class NCBI_GUIOPENGL_EXPORT CGlUtils
{
public:
    // status of hardware acceleration.
    enum EAccelState {
        eNotDetermined,
        eAccelerated,
        eNotAccelerated
    };

    // check if there are any OpenGL errors
    static void     CheckGlError();

    // dump many of the most common OpenGL states
    static void     DumpState();

    // get the status of hardware acceleration.  This cannot be determined
    // without an active OpenGL context.
    static EAccelState  GetAccelerated(void);

    // set the status of hardware acceleration.  This is provided to permit a
    // user override of the detected state.
    static void         SetAccelerated(EAccelState acc);

private:

    // hardware acceleration
    static EAccelState m_Accel;

};

#ifndef _DEBUG

//
// in release mode, this function does nothing
//
inline
void CGlUtils::DumpState(void)
{
}

#endif


END_NCBI_SCOPE

/* @} */




/*
 * ===========================================================================
 * $Log: glutils.hpp,v $
 * Revision 1000.1  2004/06/01 19:50:28  gouriano
 * PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.9
 *
 * Revision 1.9  2004/05/11 18:54:22  dicuccio
 * Added doxygne modules info
 *
 * Revision 1.8  2004/05/03 12:43:59  dicuccio
 * Added #include for gui/gui.hpp
 *
 * Revision 1.7  2003/09/29 15:20:07  dicuccio
 * Deprecated gui/scope.hpp.  Merged gui/core/types.hpp into gui/types.hpp
 *
 * Revision 1.6  2003/05/06 15:51:56  dicuccio
 * Reorganized CGlCanvas and CGlUtils: moved hardware check into CGlUtils; split
 * CGlCanvas into 2D and 3D variants
 *
 * Revision 1.5  2003/01/13 13:11:42  dicuccio
 * Namespace clean-up.  Retired namespace gui -> converted to namespace ncbi.
 * Moved all FLUID-generated code into namespace ncbi.
 *
 * Revision 1.4  2002/12/19 18:13:03  dicuccio
 * Added export specifiers for Win32.
 *
 * Revision 1.3  2002/11/08 02:06:07  dicuccio
 * Fixed syntax error in preprocessor definition.
 *
 * Revision 1.2  2002/11/07 18:24:48  dicuccio
 * Minor #ifdef changes.  Created macro to wrap dumping of OpenGL state.
 *
 * Revision 1.1  2002/11/04 20:05:38  dicuccio
 * Initial revision
 *
 * ===========================================================================
 */

#endif  // GUI_OPENGL___GL_UTILS__HPP