FGFS-4.1/OpenSceneGraph
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Added use of OSG_MAX_TEXTURE_SIZE for clamping texture sizes.

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This commit is contained in:
Robert Osfield 2007-05-09 10:31:06 +00:00
parent 5d23bf7739
commit 77b4ffcac2
1 changed files with 22 additions and 0 deletions
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22
src/osgText/Font.cpp
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@ -145,6 +145,16 @@ Font::Font(FontImplementation* implementation):
_texenv = new osg::TexEnv;
_stateset = new osg::StateSet;
_stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
char *ptr;
if( (ptr = getenv("OSG_MAX_TEXTURE_SIZE")) != 0)
{
GLint osg_max_size = atoi(ptr);
if (osg_max_size<_textureWidthHint) _textureWidthHint = osg_max_size;
if (osg_max_size<_textureHeightHint) _textureHeightHint = osg_max_size;
}
}
Font::~Font()
@ -214,6 +224,15 @@ void Font::setTextureSizeHint(unsigned int width,unsigned int height)
{
_textureWidthHint = width;
_textureHeightHint = height;
char *ptr;
if( (ptr = getenv("OSG_MAX_TEXTURE_SIZE")) != 0)
{
GLint osg_max_size = atoi(ptr);
if (osg_max_size<_textureWidthHint) _textureWidthHint = osg_max_size;
if (osg_max_size<_textureHeightHint) _textureHeightHint = osg_max_size;
}
}
unsigned int Font::getTextureWidthHint() const
@ -533,6 +552,9 @@ void Font::GlyphTexture::apply(osg::State& state) const
}
osg::notify(osg::NOTICE)<<"Texture width = "<<getTextureWidth()<<std::endl;
osg::notify(osg::NOTICE)<<"Texture height = "<<getTextureHeight()<<std::endl;
// allocate the texture memory.
glTexImage2D( GL_TEXTURE_2D, 0, GL_ALPHA,
getTextureWidth(), getTextureHeight(), 0,