102 lines
2.3 KiB
C++
102 lines
2.3 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 Robert Osfield
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* Copyright (C) 2003 3Dlabs Inc. Ltd.
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*
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* This application is open source and may be redistributed and/or modified
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* freely and without restriction, both in commericial and non commericial
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* applications, as long as this copyright notice is maintained.
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*
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* This application 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.
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*/
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/* file: src/osgGL2/UniformValue
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* author: Mike Weiblen 2003-12-27
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*
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* See http://www.3dlabs.com/opengl2/ for more information regarding
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* the OpenGL Shading Language.
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*/
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#include <string>
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#include <osg/Notify>
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#include <osgGL2/UniformValue>
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using namespace osgGL2;
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using namespace osg;
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int UniformValue::getLocation( Extensions *ext, const GLhandleARB progObj ) const
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{
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GLint loc = ext->glGetUniformLocation( progObj, _name.c_str() );
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if( loc == -1 )
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{
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osg::notify(osg::INFO) << "Uniform \"" << _name <<
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"\" not found in ProgramObject" << std::endl;
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}
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return loc;
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}
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///////////////////////////////////////////////////////////////////////////
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#ifdef sgi
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template <>
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#endif
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void UniformValue_int::apply( Extensions *ext, const GLhandleARB progObj ) const
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{
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int loc = getLocation( ext, progObj );
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if( loc != -1 )
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{
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ext->glUniform1i( loc, _value );
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}
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}
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#ifdef sgi
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template <>
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#endif
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void UniformValue_float::apply( Extensions *ext, const GLhandleARB progObj ) const
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{
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int loc = getLocation( ext, progObj );
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if( loc != -1 )
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{
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ext->glUniform1f( loc, _value );
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}
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}
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#ifdef sgi
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template <>
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#endif
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void UniformValue_Vec2::apply( Extensions *ext, const GLhandleARB progObj ) const
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{
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int loc = getLocation( ext, progObj );
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if( loc != -1 )
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{
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ext->glUniform2fv( loc, 1, _value.ptr() );
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}
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}
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#ifdef sgi
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template <>
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#endif
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void UniformValue_Vec3::apply( Extensions *ext, const GLhandleARB progObj ) const
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{
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int loc = getLocation( ext, progObj );
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if( loc != -1 )
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{
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ext->glUniform3fv( loc, 1, _value.ptr() );
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}
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}
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#ifdef sgi
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template <>
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#endif
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void UniformValue_Vec4::apply( Extensions *ext, const GLhandleARB progObj ) const
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{
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int loc = getLocation( ext, progObj );
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if( loc != -1 )
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{
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ext->glUniform4fv( loc, 1, _value.ptr() );
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}
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}
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/*EOF*/
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