522 lines
20 KiB
C++
522 lines
20 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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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
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* OpenSceneGraph Public License for more details.
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*/
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#if defined(_MSC_VER)
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#pragma warning( disable : 4786 )
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#endif
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#include <stdio.h>
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#include <osg/GL>
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#include <osg/GeoSet>
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#include <osg/Notify>
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using namespace osg;
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#define DEBUG
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#define DO_SHADING 1
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#define I_ON (1<<4)
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#define C_ON (1<<3)
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#define N_ON (1<<2)
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#define T_ON (1<<1)
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#define V_ON (1<<0)
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void GeoSet::set_fast_path( void )
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{
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if( _iaformat != IA_OFF )
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{
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_fast_path = I_ON;
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}
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else
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{
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if( ( _normal_binding != BIND_PERPRIM) &&
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( _nindex.null() || _nindex ==_cindex) &&
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( _color_binding != BIND_PERPRIM) &&
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( _colindex.null() || _colindex ==_cindex ) &&
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( _primtype != FLAT_LINE_STRIP ) &&
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( _primtype != FLAT_TRIANGLE_STRIP ) &&
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( _primtype != FLAT_TRIANGLE_FAN )
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)
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_fast_path = V_ON;
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else
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{
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_fast_path = 0;
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#ifdef DEBUG
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if( _normal_binding == BIND_PERPRIM )
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notify( DEBUG ) << "Geoset - Failed fast path because NORMALS are bound PER_PRIM\n";
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if( _nindex.valid() )
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notify( DEBUG ) << "Geoset - Failed fast path because NORMAL indeces are specified\n";
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if( _color_binding == BIND_PERPRIM )
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notify( DEBUG ) << "Geoset - Failed fast path because COLORS are bound PER_PRIM\n";
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if( _cindex.valid() )
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notify( DEBUG ) << "Geoset - Failed fast path because COLOR indeces are specified\n";
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if( _primtype == FLAT_LINE_STRIP )
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notify( DEBUG ) << "Geoset - Failed fast path because primitive is FLAT_LINE_STRIP\n";
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if ( _primtype == FLAT_TRIANGLE_STRIP )
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notify( DEBUG ) << "Geoset - Failed fast path because primitive is FLAT_TRIANGLE_STRIP\n";
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if ( _primtype == FLAT_TRIANGLE_FAN )
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notify( DEBUG ) << "Geoset - Failed fast path because primitive is FLAT_TRIANGLE_FAN\n";
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#endif
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}
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if( _fast_path )
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{
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if( _color_binding == BIND_PERVERTEX )
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_fast_path |= C_ON;
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if( _normal_binding == BIND_PERVERTEX )
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_fast_path |= N_ON;
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if( _texture_binding == BIND_PERVERTEX )
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_fast_path |= T_ON;
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}
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}
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#ifdef DEBUG
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notify(INFO) << "GeoSet - fast path = " << _fast_path << "\n";
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#endif
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}
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void GeoSet::draw_fast_path( State& state ) const
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{
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IndexPointer ocindex = _cindex;
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switch( _fast_path )
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{
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case (I_ON) :
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_cindex = _iaindex;
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glInterleavedArrays( (GLenum)_ogliaformat, 0, _iarray );
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break;
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case (V_ON) :
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state.disableNormalPointer();
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state.disableColorPointer();
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state.disableTexCoordPointersAboveAndIncluding(0);
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state.setVertexPointer(3, GL_FLOAT, 0,_coords);
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// glDisableClientState( GL_COLOR_ARRAY );
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// glDisableClientState( GL_NORMAL_ARRAY );
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// glDisableClientState( GL_TEXTURE_COORD_ARRAY );
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// glEnableClientState( GL_VERTEX_ARRAY );
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// glVertexPointer( 3, GL_FLOAT, 0, (GLfloat *)_coords );
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break;
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case (T_ON|V_ON) :
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state.disableNormalPointer();
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state.disableColorPointer();
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state.setTexCoordPointer(0, 2, GL_FLOAT, 0, (GLfloat *)_tcoords );
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state.disableTexCoordPointersAboveAndIncluding(1);
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state.setVertexPointer(3, GL_FLOAT, 0,_coords);
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// glDisableClientState( GL_COLOR_ARRAY );
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// glDisableClientState( GL_NORMAL_ARRAY );
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// glEnableClientState( GL_TEXTURE_COORD_ARRAY );
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// glTexCoordPointer( 2, GL_FLOAT, 0, (GLfloat *)_tcoords );
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// glEnableClientState( GL_VERTEX_ARRAY );
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// glVertexPointer( 3, GL_FLOAT, 0, (GLfloat *)_coords );
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break;
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case (N_ON|V_ON) :
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state.disableColorPointer();
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state.disableTexCoordPointersAboveAndIncluding(0);
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state.setVertexPointer(3, GL_FLOAT, 0,_coords);
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state.setNormalPointer( GL_FLOAT, 0, (GLfloat *)_normals );
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// glDisableClientState( GL_COLOR_ARRAY );
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// glEnableClientState( GL_NORMAL_ARRAY );
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// glNormalPointer( GL_FLOAT, 0, (GLfloat *)_normals );
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// glDisableClientState( GL_TEXTURE_COORD_ARRAY );
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// glEnableClientState( GL_VERTEX_ARRAY );
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// glVertexPointer( 3, GL_FLOAT, 0, (GLfloat *)_coords );
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break;
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case (N_ON|T_ON|V_ON) :
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state.disableColorPointer();
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state.setNormalPointer( GL_FLOAT, 0, (GLfloat *)_normals );
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state.setTexCoordPointer(0, 2, GL_FLOAT, 0, (GLfloat *)_tcoords );
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state.disableTexCoordPointersAboveAndIncluding(1);
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state.setVertexPointer(3, GL_FLOAT, 0,_coords);
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// glDisableClientState( GL_COLOR_ARRAY );
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// glEnableClientState( GL_NORMAL_ARRAY );
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// glNormalPointer( GL_FLOAT, 0, (GLfloat *)_normals );
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// glEnableClientState( GL_TEXTURE_COORD_ARRAY );
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// glTexCoordPointer( 2, GL_FLOAT, 0, (GLfloat *)_tcoords );
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// glEnableClientState( GL_VERTEX_ARRAY );
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// glVertexPointer( 3, GL_FLOAT, 0, (GLfloat *)_coords );
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break;
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case (C_ON|V_ON) :
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state.disableNormalPointer();
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state.disableTexCoordPointersAboveAndIncluding(0);
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state.setColorPointer( 4, GL_FLOAT, 0, (GLfloat *)_colors );
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state.setVertexPointer(3, GL_FLOAT, 0,_coords);
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// glEnableClientState( GL_COLOR_ARRAY );
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// glColorPointer( 4, GL_FLOAT, 0, (GLfloat *)_colors );
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// glDisableClientState( GL_NORMAL_ARRAY );
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// glDisableClientState( GL_TEXTURE_COORD_ARRAY );
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// glEnableClientState( GL_VERTEX_ARRAY );
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// glVertexPointer( 3, GL_FLOAT, 0, (GLfloat *)_coords );
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break;
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case (C_ON|T_ON|V_ON) :
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state.disableNormalPointer();
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state.setColorPointer( 4, GL_FLOAT, 0, (GLfloat *)_colors );
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state.setTexCoordPointer(0, 2, GL_FLOAT, 0, (GLfloat *)_tcoords );
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state.disableTexCoordPointersAboveAndIncluding(1);
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state.setVertexPointer(3, GL_FLOAT, 0,_coords);
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// glEnableClientState( GL_COLOR_ARRAY );
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// glColorPointer( 4, GL_FLOAT, 0, (GLfloat *)_colors );
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// glDisableClientState( GL_NORMAL_ARRAY );
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// glEnableClientState( GL_TEXTURE_COORD_ARRAY );
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// glTexCoordPointer( 2, GL_FLOAT, 0, (GLfloat *)_tcoords );
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// glEnableClientState( GL_VERTEX_ARRAY );
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// glVertexPointer( 3, GL_FLOAT, 0, (GLfloat *)_coords );
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break;
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case (C_ON|N_ON|V_ON) :
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state.disableTexCoordPointersAboveAndIncluding(0);
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state.setNormalPointer( GL_FLOAT, 0, (GLfloat *)_normals );
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state.setColorPointer( 4, GL_FLOAT, 0, (GLfloat *)_colors );
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state.setVertexPointer(3, GL_FLOAT, 0,_coords);
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// glEnableClientState( GL_COLOR_ARRAY );
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// glColorPointer( 4, GL_FLOAT, 0, (GLfloat *)_colors );
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// glEnableClientState( GL_NORMAL_ARRAY );
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// glNormalPointer( GL_FLOAT, 0, (GLfloat *)_normals );
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// glDisableClientState( GL_TEXTURE_COORD_ARRAY );
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// glEnableClientState( GL_VERTEX_ARRAY );
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// glVertexPointer( 3, GL_FLOAT, 0, (GLfloat *)_coords );
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break;
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case (C_ON|N_ON|T_ON|V_ON) :
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state.setNormalPointer( GL_FLOAT, 0, (GLfloat *)_normals );
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state.setColorPointer( 4, GL_FLOAT, 0, (GLfloat *)_colors );
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state.setTexCoordPointer(0, 2, GL_FLOAT, 0, (GLfloat *)_tcoords );
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state.disableTexCoordPointersAboveAndIncluding(1);
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state.setVertexPointer(3, GL_FLOAT, 0,_coords);
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// glEnableClientState( GL_COLOR_ARRAY );
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// glColorPointer( 4, GL_FLOAT, 0, (GLfloat *)_colors );
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// glEnableClientState( GL_NORMAL_ARRAY );
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// glNormalPointer( GL_FLOAT, 0, (GLfloat *)_normals );
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// glEnableClientState( GL_TEXTURE_COORD_ARRAY );
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// glTexCoordPointer( 2, GL_FLOAT, 0, (GLfloat *)_tcoords );
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// glEnableClientState( GL_VERTEX_ARRAY );
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// glVertexPointer( 3, GL_FLOAT, 0, (GLfloat *)_coords );
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break;
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}
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if( _color_binding == BIND_OVERALL )
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{
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if( _colindex.valid() )
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glColor4fv( (GLfloat * )&_colors[_colindex[0]] );
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else
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glColor4fv( (GLfloat * )&_colors[0] );
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}
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if( _normal_binding == BIND_OVERALL )
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{
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if( _nindex.valid() )
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glNormal3fv( (GLfloat * )&_normals[_nindex[0]] );
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else
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glNormal3fv( (GLfloat * )&_normals[0] );
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}
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if( _needprimlen ) // LINE_STRIP, LINE_LOOP, TRIANGLE_STRIP,
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// TRIANGLE_FAN, QUAD_STRIP, POLYGONS
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{
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int index = 0;
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if( _primLengths == (int *)0 )
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{
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notify(WARN) << "GeoSet->draw() : " "Primitive lengths required\n";
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return;
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}
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for( int i = 0; i < _numprims; i++ )
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{
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if( _cindex.valid() )
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{
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if (_cindex._is_ushort)
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glDrawElements( (GLenum)_oglprimtype, _primLengths[i], GL_UNSIGNED_SHORT, &_cindex._ptr._ushort[index] );
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else
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glDrawElements( (GLenum)_oglprimtype, _primLengths[i], GL_UNSIGNED_INT, &_cindex._ptr._uint[index] );
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}
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else
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glDrawArrays( (GLenum)_oglprimtype, index, _primLengths[i] );
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index += _primLengths[i];
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}
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}
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else // POINTS, LINES, TRIANGLES, QUADS
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{
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if( _cindex.valid())
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{
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if (_cindex._is_ushort)
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glDrawElements( (GLenum)_oglprimtype, _cindex._size, GL_UNSIGNED_SHORT, _cindex._ptr._ushort );
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else
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glDrawElements( (GLenum)_oglprimtype, _cindex._size, GL_UNSIGNED_INT, _cindex._ptr._uint );
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}
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else
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glDrawArrays( (GLenum)_oglprimtype, 0, _numcoords );
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}
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_cindex = ocindex;
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}
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void GeoSet::draw_alternate_path( State& state ) const
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{
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if( (_color_binding == BIND_PERVERTEX) && (_colindex.null() || _colindex ==_cindex) && (_flat_shaded_skip == 0) )
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{
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// glEnableClientState( GL_COLOR_ARRAY );
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// glColorPointer( 4, GL_FLOAT, 0, (GLfloat *)_colors );
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state.setColorPointer( 4, GL_FLOAT, 0, (GLfloat *)_colors );
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}
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else
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{
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// glDisableClientState( GL_COLOR_ARRAY );
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state.disableColorPointer();
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if( _color_binding == BIND_OVERALL )
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{
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if( _colindex.valid() )
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glColor4fv( (GLfloat *)&_colors[_colindex[0]] );
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else
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glColor4fv( (GLfloat *)&_colors[0] );
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}
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}
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if( (_normal_binding == BIND_PERVERTEX) && (_nindex.null() || _nindex ==_cindex) && (_flat_shaded_skip == 0) )
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{
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// glEnableClientState( GL_NORMAL_ARRAY );
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// glNormalPointer( GL_FLOAT, 0, (GLfloat *)_normals );
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state.setNormalPointer( GL_FLOAT, 0, (GLfloat *)_normals );
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}
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else
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{
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state.disableNormalPointer();
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// glDisableClientState( GL_NORMAL_ARRAY );
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if( _normal_binding == BIND_OVERALL )
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{
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if( _nindex.valid() )
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glNormal3fv( (GLfloat *)&_normals[_nindex[0]] );
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else
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glNormal3fv( (GLfloat *)&_normals[0] );
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}
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}
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if( (_texture_binding == BIND_PERVERTEX) && (_tindex.null()) )
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{
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// glEnableClientState( GL_TEXTURE_COORD_ARRAY );
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// glTexCoordPointer( 2, GL_FLOAT, 0, _tcoords );
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state.setTexCoordPointer( 0, 2, GL_FLOAT, 0, _tcoords );
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state.disableTexCoordPointersAboveAndIncluding(1);
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}
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else
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state.disableTexCoordPointersAboveAndIncluding(0);
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// glDisableClientState( GL_TEXTURE_COORD_ARRAY );
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// glEnableClientState( GL_VERTEX_ARRAY );
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// glVertexPointer( 3, GL_FLOAT, 0, (GLfloat *)_coords );
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state.setVertexPointer( 3, GL_FLOAT, 0, (GLfloat *)_coords );
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if( _needprimlen ) // LINE_STRIP, LINE_LOOP, TRIANGLE_STRIP,
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// TRIANGLE_FAN, QUAD_STRIP, POLYGONS
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// FLAT_LINE_STRIP, FLAT_TRIANGLE_STRIP, FLAT_TRIANGLE_FAN
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{
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int i, j;
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int index = 0;
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int ai = 0;
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int ci = 0;
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int ni = 0;
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int ti = 0;
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if( _primLengths == (int *)0 )
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{
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notify(WARN) << "GeoSet->draw() : " "Primitive lengths required\n";
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return;
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}
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if( _flat_shaded_skip )
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{
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#ifdef DO_SHADING
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glShadeModel( GL_FLAT );
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#endif
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}
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for( i = 0; i < _numprims; i++ )
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{
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if( _color_binding == BIND_PERPRIM )
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{
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if( _colindex.valid() )
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glColor4fv( (GLfloat *)&_colors[_colindex[ci++]] );
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else
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glColor4fv( (GLfloat *)&_colors[ci++] );
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}
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if( _normal_binding == BIND_PERPRIM )
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{
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if( _nindex.valid() )
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glNormal3fv( (GLfloat *)&_normals[_nindex[ni++]] );
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else
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glNormal3fv( (GLfloat *)&_normals[ni++] );
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}
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if( _flat_shaded_skip )
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{
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glBegin( (GLenum)_oglprimtype );
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for( j = 0; j < _primLengths[i]; j++ )
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{
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if( j >= _flat_shaded_skip )
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{
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if( _color_binding == BIND_PERVERTEX )
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{
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if( (_colindex.valid()) )
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glColor4fv( (GLfloat *)&_colors[_colindex[ci++]] );
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else
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glColor4fv( (GLfloat *)&_colors[ci++] );
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}
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if( _normal_binding == BIND_PERVERTEX )
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{
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if(_nindex.valid())
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glNormal3fv( (GLfloat *)&_normals[_nindex[ni++]] );
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else
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glNormal3fv( (GLfloat *)&_normals[ni++] );
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}
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}
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if( _texture_binding == BIND_PERVERTEX )
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{
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if( _tindex.valid() )
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glTexCoord2fv( (GLfloat *)&_tcoords[_tindex[ti++]] );
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else
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glTexCoord2fv( (GLfloat *)&_tcoords[ti++] );
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}
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if( _cindex.valid() )
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glArrayElement( _cindex[ai++] );
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else
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glArrayElement( ai++ );
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}
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glEnd();
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}
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else
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if( ((_color_binding == BIND_PERVERTEX ) && (_colindex.valid()) ) ||
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((_normal_binding == BIND_PERVERTEX ) && (_nindex.valid()) ) ||
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((_texture_binding == BIND_PERVERTEX ) && (_tindex.valid()) ) )
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{
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glBegin( (GLenum)_oglprimtype );
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for( j = 0; j < _primLengths[i]; j++ )
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{
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if( (_color_binding == BIND_PERVERTEX) && (_colindex.valid()) )
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glColor4fv( (GLfloat *)&_colors[_colindex[ci++]] );
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if( (_normal_binding == BIND_PERVERTEX) && (_nindex.valid()) )
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glNormal3fv( (GLfloat *)&_normals[_nindex[ni++]] );
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if( (_texture_binding == BIND_PERVERTEX) && (_tindex.valid()) )
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glTexCoord2fv( (GLfloat *)&_tcoords[_tindex[ti++]] );
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if( _cindex.valid() )
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glArrayElement( _cindex[ai++] );
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else
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glArrayElement( ai++ );
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}
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glEnd();
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}
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else
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{
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if( _cindex.valid() )
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{
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if (_cindex._is_ushort)
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glDrawElements( (GLenum)_oglprimtype, _primLengths[i], GL_UNSIGNED_SHORT, &_cindex._ptr._ushort[index] );
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else
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glDrawElements( (GLenum)_oglprimtype, _primLengths[i], GL_UNSIGNED_INT, &_cindex._ptr._uint[index] );
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}
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else
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glDrawArrays( (GLenum)_oglprimtype, index, _primLengths[i] );
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}
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index += _primLengths[i];
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}
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if( _flat_shaded_skip )
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{
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#ifdef DO_SHADING
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glShadeModel( GL_SMOOTH );
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#endif
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}
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}
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else // POINTS, LINES, TRIANGLES, QUADS
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{
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int i, j;
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if( _normal_binding == BIND_PERPRIM || _color_binding == BIND_PERPRIM ||
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((_color_binding == BIND_PERVERTEX ) && (_colindex.valid()) ) ||
|
|
((_normal_binding == BIND_PERVERTEX ) && (_nindex.valid()) ) ||
|
|
((_texture_binding == BIND_PERVERTEX ) && (_tindex.valid()) ) )
|
|
{
|
|
|
|
glBegin( (GLenum)_oglprimtype );
|
|
for( i = 0; i < _numprims; i++ )
|
|
{
|
|
if( _color_binding == BIND_PERPRIM )
|
|
{
|
|
if( _colindex.valid() )
|
|
glColor4fv( (GLfloat *)&_colors[_colindex[i]] );
|
|
else
|
|
glColor4fv( (GLfloat *)&_colors[i] );
|
|
}
|
|
if( _normal_binding == BIND_PERPRIM )
|
|
{
|
|
if( _nindex.valid() )
|
|
glNormal3fv( (GLfloat *)&_normals[_nindex[i]] );
|
|
else
|
|
glNormal3fv( (GLfloat *)&_normals[i] );
|
|
}
|
|
|
|
for( j = 0; j < _primlength; j++ )
|
|
{
|
|
if( (_color_binding == BIND_PERVERTEX) && (_colindex.valid() ) )
|
|
glColor4fv( (GLfloat *)&_colors[_colindex[i*_primlength+j]] );
|
|
|
|
if( (_normal_binding == BIND_PERVERTEX) && (_nindex.valid() ) )
|
|
glNormal3fv( (GLfloat *)&_normals[_nindex[i*_primlength+j]] );
|
|
|
|
if( (_texture_binding == BIND_PERVERTEX) && (_tindex.valid() ) )
|
|
glTexCoord2fv( (GLfloat *)&_tcoords[_tindex[i*_primlength+j]] );
|
|
|
|
if( _cindex.valid())
|
|
glArrayElement( _cindex[i*_primlength+j] );
|
|
else
|
|
glArrayElement( i*_primlength+j );
|
|
}
|
|
}
|
|
glEnd();
|
|
}
|
|
else
|
|
{
|
|
if( _cindex.valid())
|
|
{
|
|
if (_cindex._is_ushort)
|
|
glDrawElements( (GLenum)_oglprimtype, _cindex._size, GL_UNSIGNED_SHORT, _cindex._ptr._ushort );
|
|
else
|
|
glDrawElements( (GLenum)_oglprimtype, _cindex._size, GL_UNSIGNED_INT, _cindex._ptr._uint );
|
|
}
|
|
else
|
|
glDrawArrays( (GLenum)_oglprimtype, 0, _numcoords );
|
|
}
|
|
}
|
|
}
|