/usr/include/osgEarthUtil/GammaColorFilter is in libosgearth-dev 2.7.0+dfsg-2+b3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
* Copyright 2015 Pelican Mapping
* http://osgearth.org
*
* osgEarth is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
* Original author: Thomas Lerman
*/
#ifndef OSGEARTHUTIL_GAMMA_COLOR_FILTER
#define OSGEARTHUTIL_GAMMA_COLOR_FILTER
#include <osgEarthUtil/Common>
#include <osgEarth/ColorFilter>
#include <osg/Uniform>
namespace osgEarth { namespace Util
{
/**
* Color filter that applies gamma correction to the pixel data
*/
class OSGEARTHUTIL_EXPORT GammaColorFilter : public osgEarth::ColorFilter
{
public:
GammaColorFilter();
GammaColorFilter(const Config& conf);
virtual ~GammaColorFilter() { }
/**
* The gamma value to correct for.
*/
void setGamma(float gamma);
void setGamma(const osg::Vec3f& gamma);
osg::Vec3f getGamma(void) const;
public: // ColorFilter
virtual std::string getEntryPointFunctionName(void) const;
virtual void install(osg::StateSet* stateSet) const;
virtual Config getConfig() const;
protected:
unsigned m_instanceId;
osg::ref_ptr<osg::Uniform> m_gamma;
void init();
};
} } // namespace osgEarth::Util
#endif // OSGEARTHUTIL_GAMMA_COLOR_FILTER
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