glteximage.hpp
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- /*
- * ===========================================================================
- * PRODUCTION $Log: glteximage.hpp,v $
- * PRODUCTION Revision 1000.1 2004/06/01 19:50:21 gouriano
- * PRODUCTION PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.4
- * PRODUCTION
- * ===========================================================================
- */
- #ifndef GUI_OPENGL___GL_TEX_IMAGE___HPP
- #define GUI_OPENGL___GL_TEX_IMAGE___HPP
- /* $Id: glteximage.hpp,v 1000.1 2004/06/01 19:50:21 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:
- *
- */
- #include <util/image/image.hpp>
- #include <gui/opengl.h>
- #include <gui/gui.hpp>
- /** @addtogroup GUI_OPENGL
- *
- * @{
- */
- BEGIN_NCBI_SCOPE
- //
- // class CTexImage defines a specialization of CImage that is useful for
- // textures.
- //
- // This class holds a CImage as well as its texture information.
- //
- class NCBI_GUIOPENGL_EXPORT CTexImage : public CObject
- {
- public:
- // default ctor
- CTexImage();
- // create a texture from a file
- explicit CTexImage(const string& filename);
- // create a texture around an existing image
- explicit CTexImage(CImage* image);
- // create a texture of a given dimension
- CTexImage(size_t w, size_t h, size_t d);
- // initialize our image.
- // Here, depth is in channels (3 = 24-bit, 4 = 32-bit)
- void Init(size_t w, size_t h, size_t depth);
- // reset our internal structures
- void Clear();
- // "swallow" an image - explicitly assigns the image we wrap
- void Swallow(CImage *image);
- // make this texture the current texture for OpenGL work
- void MakeCurrent();
- // load an image. this creates a new display list or tex object
- void Load();
- // unload an image. this destroys the current binding
- void Unload();
- // access the filename
- const string& GetFileName(void) const;
- // access our image
- const CImage* GetImage(void) const;
- CImage* SetImage(void);
- //
- // OpenGL specifics
- //
- // filtering - magnification / minification
- void SetFilterMin(GLenum f);
- void SetFilterMag(GLenum f);
- GLenum GetFilterMin(void) const;
- GLenum GetFilterMag(void) const;
- // texture wrapping - in two directions, S and T
- void SetWrapS(GLenum e);
- void SetWrapT(GLenum e);
- GLenum GetWrapS(void) const;
- GLenum GetWrapT(void) const;
- // texture environment mode
- void SetTexEnv(GLenum e);
- GLenum GetTexEnv(void) const;
- protected:
- // our filename (may be empty)
- string m_FileName;
- // the CImage we wrap
- CRef<CImage> m_Image;
- // OpenGL stuff:
- // the texture id - either object or display list
- GLuint m_TexId;
- // texture wrapping (S and T directions)
- GLenum m_WrapS;
- GLenum m_WrapT;
- // texture filtering for magnification / minification
- GLenum m_FilterMin;
- GLenum m_FilterMag;
- // texture environment (modulation vs. decal, for example)
- GLenum m_TexEnv;
- // flag: can we use texture objects?
- // this is an enumerated value indicating the state of texturing support
- enum ETexSupport {
- eNotChecked,
- eTexObj,
- eTexDisplayList
- };
- static ETexSupport sm_TexObjFlag;
- // initialize texture object ability:
- void x_InitTexObj();
- private:
- // forbidden
- CTexImage (const CTexImage&);
- CTexImage& operator= (const CTexImage&);
- };
- //
- //
- // inline accessors
- //
- //
- inline
- CImage* CTexImage::SetImage(void)
- {
- return m_Image;
- }
- inline
- const CImage* CTexImage::GetImage(void) const
- {
- return m_Image;
- }
- inline
- const string& CTexImage::GetFileName(void) const
- {
- return m_FileName;
- }
- inline
- void CTexImage::SetWrapS(GLenum e)
- {
- m_WrapS = e;
- }
- inline
- void CTexImage::SetWrapT(GLenum e)
- {
- m_WrapT = e;
- }
- inline
- void CTexImage::SetFilterMin(GLenum e)
- {
- m_FilterMin = e;
- }
- inline
- void CTexImage::SetFilterMag(GLenum e)
- {
- m_FilterMag = e;
- }
- inline
- void CTexImage::SetTexEnv(GLenum e)
- {
- m_TexEnv = e;
- }
- inline
- GLenum CTexImage::GetWrapS(void) const
- {
- return m_WrapS;
- }
- inline
- GLenum CTexImage::GetWrapT(void) const
- {
- return m_WrapT;
- }
- inline
- GLenum CTexImage::GetFilterMin(void) const
- {
- return m_FilterMin;
- }
- inline
- GLenum CTexImage::GetFilterMag(void) const
- {
- return m_FilterMag;
- }
- inline
- GLenum CTexImage::GetTexEnv(void) const
- {
- return m_TexEnv;
- }
- END_NCBI_SCOPE
- /* @} */
- /*
- * ===========================================================================
- * $Log: glteximage.hpp,v $
- * Revision 1000.1 2004/06/01 19:50:21 gouriano
- * PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.4
- *
- * Revision 1.4 2004/05/11 18:54:22 dicuccio
- * Added doxygne modules info
- *
- * Revision 1.3 2004/05/03 12:43:59 dicuccio
- * Added #include for gui/gui.hpp
- *
- * Revision 1.2 2003/06/03 19:36:38 dicuccio
- * Added export specifiers. Fixed errant #include of <GL/...> files
- *
- * Revision 1.1 2003/06/03 17:42:54 dicuccio
- * Added texture support. Added classes to handle OpenGL camera setup, viewport
- * specification
- *
- * ===========================================================================
- */
- #endif // GUI_OPENGL___GL_TEX_IMAGE___HPP