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From Mike Weiblen, updates to osgGL2 to support Uniform values

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Robert Osfield
2003-10-05 11:30:54 +00:00
parent 9d6bf8d1b6
commit ce15c880b1
17 changed files with 1350 additions and 319 deletions
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98
src/osgGL2/UniformValue.cpp Normal file
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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 Robert Osfield
* Copyright (C) 2003 3Dlabs Inc. Ltd.
*
* This application is open source and may be redistributed and/or modified
* freely and without restriction, both in commericial and non commericial
* applications, as long as this copyright notice is maintained.
*
* This application 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.
*/
/* file: src/osgGL2/UniformValue
* author: Mike Weiblen 2003-09-12
*
* See http://www.3dlabs.com/opengl2/ for more information regarding
* the OpenGL Shading Language.
*/
#include <string>
#include <osg/Notify>
#include <osgGL2/UniformValue>
using namespace osgGL2;
using namespace osg;
int UniformValue::getLocation( Extensions *ext, const GLhandleARB progObj ) const
{
GLint loc = ext->glGetUniformLocation( progObj, _name.c_str() );
if( loc == -1 )
{
osg::notify(osg::INFO) << "Uniform \"" << _name <<
"\" not found in ProgramObject" << std::endl;
}
return loc;
}
///////////////////////////////////////////////////////////////////////////
#define META_UniformValueCtor( typeName ) \
UniformValue_##typeName::UniformValue_##typeName( const char* uniformName, typeName value ) : \
UniformValue( uniformName ) \
{ _value = value; } \
META_UniformValueCtor( int );
void UniformValue_int::apply( Extensions *ext, const GLhandleARB progObj ) const
{
int loc = getLocation( ext, progObj );
if( loc != -1 )
{
ext->glUniform1i( loc, _value );
}
}
META_UniformValueCtor( float );
void UniformValue_float::apply( Extensions *ext, const GLhandleARB progObj ) const
{
int loc = getLocation( ext, progObj );
if( loc != -1 )
{
ext->glUniform1f( loc, _value );
}
}
META_UniformValueCtor( Vec2 );
void UniformValue_Vec2::apply( Extensions *ext, const GLhandleARB progObj ) const
{
int loc = getLocation( ext, progObj );
if( loc != -1 )
{
ext->glUniform2fv( loc, 1, _value.ptr() );
}
}
META_UniformValueCtor( Vec3 );
void UniformValue_Vec3::apply( Extensions *ext, const GLhandleARB progObj ) const
{
int loc = getLocation( ext, progObj );
if( loc != -1 )
{
ext->glUniform3fv( loc, 1, _value.ptr() );
}
}
META_UniformValueCtor( Vec4 );
void UniformValue_Vec4::apply( Extensions *ext, const GLhandleARB progObj ) const
{
int loc = getLocation( ext, progObj );
if( loc != -1 )
{
ext->glUniform4fv( loc, 1, _value.ptr() );
}
}
/*EOF*/