X3DTextureCoordinateNode.h

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//    Copyright 2004-2019, SenseGraphics AB
//
//    This file is part of H3D API.
//
//    H3D API is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//    H3D API 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 General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with H3D API; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//    A commercial license is also available. Please contact us at 
//    www.sensegraphics.com for more information.
//
//
//
#ifndef __X3DTEXTURECOORDINATENODE_H__
#define __X3DTEXTURECOORDINATENODE_H__
 
#include <H3D/X3DGeometricPropertyNode.h>
#include <GL/glew.h>
#include <H3D/GLVertexAttributeObject.h>
 
namespace H3D {
  class X3DTextureNode;
 
  class H3DAPI_API X3DTextureCoordinateNode : 
    public X3DGeometricPropertyNode,
    public GLVertexAttributeObject{
  public:
    
    X3DTextureCoordinateNode( Inst< SFNode>  _metadata = 0 );
 
    static void renderTexCoordForActiveTexture( const Vec3f &tc );
 
    static void renderTexCoordForTexture( const Vec3f &tc, X3DTextureNode *t );
 
    static void renderVertexBufferObjectForActiveTexture(
      GLint size, GLenum type, GLsizei stride, const GLvoid *pointer );
 
    static void renderVertexBufferObjectForTexture(
      GLint size, GLenum type, GLsizei stride, const GLvoid *pointer,
      X3DTextureNode *t );
 
    static void disableVBOForActiveTexture();
 
    static void disableVBOForTexture( X3DTextureNode *t );
 
    // Functions for rendering texture coordinates explicitly
 
    virtual bool supportsExplicitTexCoords() {
      return false;
    } 
 
    virtual void render( int /*index*/ ) {}
 
    virtual void renderForTextureUnit( int /*index*/,
                                       unsigned int /*texture_unit*/ ) {}
    
    void renderForTextureUnits( int index,
                                unsigned int start_unit,
                                unsigned int end_unit );
    
    void renderForActiveTexture( int index );
 
    void renderForTexture( int index, X3DTextureNode *t );
 
    virtual unsigned int nrAvailableTexCoords() { return static_cast< unsigned int >(-1); }
 
    virtual void renderArray() {}
 
    void renderArrayForTexture( X3DTextureNode *t );
 
    void renderArrayForActiveTexture();
 
    virtual void renderArrayForTextureUnit( unsigned int texture_unit );
    
    void renderArrayForTextureUnits( unsigned int start_unit,
                                     unsigned int end_unit );
 
    virtual void disableArray() {}
 
    void disableArrayForTexture( X3DTextureNode *t );
 
    void disableArrayForActiveTexture();
 
    virtual void disableArrayForTextureUnit( unsigned int texture_unit );
 
    void disableArrayForTextureUnits( unsigned int start_unit,
                                      unsigned int end_unit );
 
 
    void renderVertexBufferObjectForTexture( X3DTextureNode *t );
 
    void renderVertexBufferObjectForActiveTexture();
 
    virtual void renderVertexBufferObjectForTextureUnit( unsigned int texture_unit );
 
    void renderVertexBufferObjectForTextureUnits( unsigned int start_unit,
                                     unsigned int end_unit );
 
    virtual void setAttributeData ( ){};
 
    virtual void renderVBO ( ){};
 
    virtual void disableVBO ( ){};
 
    void disableVertexBufferObjectForTexture( X3DTextureNode *t );
 
    void disableVertexBufferObjectForActiveTexture();
 
    virtual void disableVertexBufferObjectForTextureUnit( unsigned int texture_unit );
 
    void disableVertexBufferObjectForTextureUnits( unsigned int start_unit,
                                      unsigned int end_unit );
 
    // Functions for nodes supporting texture coordinate generation
 
    virtual bool supportsTexGen() {
      return false;
    } 
 
    virtual void startTexGen() {}
 
    virtual void stopTexGen() {}
 
    inline virtual bool supportsGetTexCoord( unsigned int /*texture_unit*/ ) {
      return false;
    }
    
    inline virtual Vec4f getTexCoord( int /*index*/, unsigned int /*texture_unit*/ ) {
      return Vec4f( 0, 0, 0, 1 );
    }
 
    virtual void startTexGenForTexture( X3DTextureNode *t );
 
    void startTexGenForActiveTexture();
    
    virtual void stopTexGenForTexture( X3DTextureNode *t );
 
    void stopTexGenForActiveTexture();
 
    void startTexGenForTextureUnits( unsigned int start_unit,
                                     unsigned int end_unit );
 
    virtual void startTexGenForTextureUnit( unsigned int texture_unit );
 
    void stopTexGenForTextureUnits( unsigned int start_unit,
                                    unsigned int end_unit );
 
    virtual void stopTexGenForTextureUnit( unsigned int texture_unit );
 
    virtual string defaultXMLContainerField() {
      return "texCoord";
    }
 
    protected:
      unsigned int texture_index;
  };
}
 
#endif