KeosRenderSystemCapabilities.h

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/*
 * This source file is part of KEOS (Free 3D Engine)
 * For the latest info, see http://www.keosengine.org/
 * E-mails : thierry.vouriot@keosengine.org, yeri@keosengine.org
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option) any later
 * version.
 *
 * This program 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 program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place - Suite 330, Boston, MA 02111-1307, USA, or go to
 * http://www.gnu.org/copyleft/lesser.txt.
 *
 */

#ifndef KEOS_RENDERSYSTEMCAPABILITIES_H
#define KEOS_RENDERSYSTEMCAPABILITIES_H

#include "KeosPrerequisites.h"

namespace Keos
{
  enum TCapability
  {
    CAP_HW_MIPMAPPING           = 0x00000001,
    CAP_TEXTURE_COMPRESSION_DXT = 0x00000002,
    CAP_NON_POWER_OF_2_TEXTURES = 0x00000004,
    CAP_VERTEX_PROGRAM          = 0x00000008,
    CAP_FRAGMENT_PROGRAM        = 0x00000010,


    // not yet support
    /*        //RSC_MULTITEXTURE          = 0x00000001,
            RSC_BLENDING                = 0x00000004,
            RSC_ANISOTROPY              = 0x00000008,
            RSC_DOT3                    = 0x00000010,
            RSC_CUBEMAPPING             = 0x00000020,
            RSC_HWSTENCIL               = 0x00000040,
            RSC_VBO                     = 0x00000080,
      RSC_TEXTURE_COMPRESSION     = 0x00000800,
      RSC_TEXTURE_COMPRESSION_VTC = 0x00002000,
            RSC_SCISSOR_TEST            = 0x00004000,
            RSC_TWO_SIDED_STENCIL       = 0x00008000,
            RSC_STENCIL_WRAP            = 0x00010000,
            RSC_HWOCCLUSION    = 0x00020000,
            RSC_USER_CLIP_PLANES  = 0x00040000,
      RSC_VERTEX_FORMAT_UBYTE4 = 0x00080000,
      RSC_INFINITE_FAR_PLANE      = 0x00100000,
            RSC_HWRENDER_TO_TEXTURE     = 0x00200000,
            RSC_TEXTURE_FLOAT           = 0x00400000,
      RSC_TEXTURE_3D    = 0x01000000
    */
  };

  //-----------------------------------------------------------------------
  class KEOS_EXPORT CRenderSystemCapabilities
  {
  private:

    ushort m_nNumTextureUnits;
    String m_strMaxVertexProgramVersion;
    String m_strMaxFragmentProgramVersion;

    int m_nCapabilities;

  public:

    CRenderSystemCapabilities ();

    ~CRenderSystemCapabilities ();

    void SetNumTextureUnits(ushort nNum)
    {
      m_nNumTextureUnits = nNum;
    }

    ushort GetNumTextureUnits(void) const
    {
      return m_nNumTextureUnits;
    }

    void SetCapability(const TCapability c)
    {
      m_nCapabilities |= c;
    }

    bool HasCapability(const TCapability c) const
    {
      if (m_nCapabilities & c)
      {
        return true;
      }
      else
      {
        return false;
      }
    }

    const String& GetMaxVertexProgramVersion(void) const
    {
      return m_strMaxVertexProgramVersion;
    }

    const String& GetMaxFragmentProgramVersion(void) const
    {
      return m_strMaxFragmentProgramVersion;
    }

    void SetMaxVertexProgramVersion(const String& strVer)
    {
      m_strMaxVertexProgramVersion = strVer;
    }

    void SetMaxFragmentProgramVersion(const String& strVer)
    {
      m_strMaxFragmentProgramVersion = strVer;
    }

    void Log();

  };

} // namespave Keos

#endif // KEOS_RENDERSYSTEMCAPABILITIES_H

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