Initial revision
This commit is contained in:
Don BURNS
427
src/osg/GeoSet_ogl.cpp
Normal file
427
src/osg/GeoSet_ogl.cpp
Normal file
@@ -0,0 +1,427 @@
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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 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 == 0L ) &&
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( _color_binding != BIND_PERPRIM) &&
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( _colindex == 0L ) &&
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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 != 0L )
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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 != 0L )
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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( void )
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{
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ushort *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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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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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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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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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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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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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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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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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 != 0L )
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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 != 0L )
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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 != (ushort *)0L )
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glDrawElements( (GLenum)_oglprimtype, _primLengths[i], GL_UNSIGNED_SHORT, &_cindex[index] );
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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 != (ushort *)0L )
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glDrawElements( (GLenum)_oglprimtype, _numindices, GL_UNSIGNED_SHORT, _cindex );
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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( void )
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{
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if( (_color_binding == BIND_PERVERTEX) && (_cindex == 0L) && (_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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}
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else
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{
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glDisableClientState( GL_COLOR_ARRAY );
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if( _color_binding == BIND_OVERALL )
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{
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if( _colindex )
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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 == 0L) && (_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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}
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else
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{
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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 )
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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 == 0L) )
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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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}
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else
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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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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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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 )
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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 )
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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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#ifdef DO_SHADING
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glShadeModel( GL_FLAT );
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#endif
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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 != 0L) )
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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 != 0L)
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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 != 0L )
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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 )
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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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#ifdef DO_SHADING
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glShadeModel( GL_SMOOTH );
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#endif
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}
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else
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if( ((_color_binding == BIND_PERVERTEX ) && (_colindex != 0L) ) ||
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((_normal_binding == BIND_PERVERTEX ) && (_nindex != 0L) ) ||
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((_texture_binding == BIND_PERVERTEX ) && (_tindex != 0L) ) )
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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 != 0L) )
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glColor4fv( (GLfloat *)&_colors[_colindex[ci++]] );
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if( (_normal_binding == BIND_PERVERTEX) && (_nindex != 0L) )
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glNormal3fv( (GLfloat *)&_normals[_nindex[ci++]] );
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if( (_texture_binding == BIND_PERVERTEX) && (_tindex != 0L) )
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glTexCoord2fv( (GLfloat *)&_tcoords[_tindex[ti++]] );
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if( _cindex )
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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 != (ushort *)0L )
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glDrawElements( (GLenum)_oglprimtype, _primLengths[i], GL_UNSIGNED_SHORT, &_cindex[index] );
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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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}
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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 != 0L) ) ||
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((_normal_binding == BIND_PERVERTEX ) && (_nindex != 0L) ) ||
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((_texture_binding == BIND_PERVERTEX ) && (_tindex != 0L) ) )
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{
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glBegin( (GLenum)_oglprimtype );
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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 )
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glColor4fv( (GLfloat *)&_colors[_colindex[i]] );
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else
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glColor4fv( (GLfloat *)&_colors[i] );
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}
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if( _normal_binding == BIND_PERPRIM )
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{
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if( _nindex )
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glNormal3fv( (GLfloat *)&_normals[_nindex[i]] );
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else
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glNormal3fv( (GLfloat *)&_normals[i] );
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}
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for( j = 0; j < _primlength; j++ )
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{
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if( (_color_binding == BIND_PERVERTEX) && (_colindex != 0L ) )
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glColor4fv( (GLfloat *)&_colors[_colindex[i*_primlength+j]] );
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if( (_normal_binding == BIND_PERVERTEX) && (_nindex != 0L ) )
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glNormal3fv( (GLfloat *)&_normals[_nindex[i*_primlength+j]] );
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if( (_texture_binding == BIND_PERVERTEX) && (_tindex != 0L ) )
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glTexCoord2fv( (GLfloat *)&_tcoords[_tindex[i*_primlength+j]] );
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glArrayElement( i*_primlength+j );
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}
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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 != (ushort *)0L )
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glDrawElements( (GLenum)_oglprimtype, _numindices, GL_UNSIGNED_SHORT, _cindex );
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else
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glDrawArrays( (GLenum)_oglprimtype, 0, _numcoords );
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}
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}
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}
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