FGFS-4.1/OpenSceneGraph
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Added support for generating compressed textures

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This commit is contained in:
Robert Osfield
2004-04-02 15:55:06 +00:00
parent 50d066d756
commit 3c239326a8
1 changed files with 31 additions and 6 deletions
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37
src/osgTerrain/DataSet.cpp
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@@ -1810,17 +1810,42 @@ osg::Node* DataSet::DestinationTile::createScene()
std::string imageName(_name+".rgb");
_imagery->_image->setFileName(imageName.c_str());
osg::StateSet* stateset = geode->getOrCreateStateSet();
osg::Image* image = _imagery->_image.get();
osg::Texture2D* texture = new osg::Texture2D;
texture->setImage(image);
texture->setWrap(osg::Texture::WRAP_S,osg::Texture::CLAMP_TO_EDGE);
texture->setWrap(osg::Texture::WRAP_T,osg::Texture::CLAMP_TO_EDGE);
texture->setFilter(osg::Texture::MIN_FILTER,osg::Texture::LINEAR);
texture->setFilter(osg::Texture::MAG_FILTER,osg::Texture::LINEAR);
texture->setMaxAnisotropy(8);
stateset->setTextureAttributeAndModes(0,texture,osg::StateAttribute::ON);
if (_dataSet->getTextureType()==COMPRESSED_TEXTURE)
{
texture->setInternalFormatMode(osg::Texture::USE_S3TC_DXT3_COMPRESSION);
osg::ref_ptr<osg::State> state = new osg::State;
texture->apply(*state);
image->readImageFromCurrentTexture();
texture->setInternalFormatMode(osg::Texture::USE_IMAGE_DATA_FORMAT);
} else if (_dataSet->getTextureType()==RGB_16_BIT)
{
image->scaleImage(image->s(),image->t(),image->r(),GL_UNSIGNED_SHORT_5_6_5);
}
if (_dataSet->getDestinationTileExtension()!=".ive")
{
std::cout<<"Writing out imagery to "<<imageName<<std::endl;
osgDB::writeImageFile(*_imagery->_image,_imagery->_image->getFileName().c_str());
}
osg::StateSet* stateset = geode->getOrCreateStateSet();
osg::Texture2D* texture = new osg::Texture2D(_imagery->_image.get());
texture->setWrap(osg::Texture::WRAP_S,osg::Texture::CLAMP);
texture->setWrap(osg::Texture::WRAP_T,osg::Texture::CLAMP);
stateset->setTextureAttributeAndModes(0,texture,osg::StateAttribute::ON);
}
return geode;