/usr/include/osgEarth/TextureCompositorTexArray is in libosgearth-dev 2.5.0+dfsg-8build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 | /* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
* Copyright 2008-2013 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.
*
* This program 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. See the
* GNU Lesser General Public License for more details.
*
* 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/>
*/
#ifndef OSGEARTH_TEXTURE_COMPOSITOR_TEX_ARRAY_H
#define OSGEARTH_TEXTURE_COMPOSITOR_TEX_ARRAY_H 1
#include <osgEarth/TextureCompositor>
#include <osg/Version>
// only in newer OSG versions.
#if OSG_VERSION_GREATER_OR_EQUAL( 2, 9, 8 )
namespace osgEarth
{
/**
* Texture compositor that stacks image layers into a Texture Array.
* Note: not compatible with GLES, or with GLSL Version < 1.3
*/
class TextureCompositorTexArray : public TextureCompositorTechnique
{
public:
TextureCompositorTexArray( const TerrainOptions& options );
/** dtor */
virtual ~TextureCompositorTexArray() { }
static bool isSupported();
public:
void updateMasterStateSet( osg::StateSet* stateSet, const TextureLayout& layout ) const;
bool requiresUnitTextureSpace() const { return true; }
bool usesShaderComposition() const { return true; }
bool supportsLayerUpdate() const { return true; }
GeoImage prepareImage( const GeoImage& layerImage, const GeoExtent& tileExtent ) const
{
return prepareImage(layerImage, tileExtent, textureSize() );
}
GeoImage prepareSecondaryImage( const GeoImage& layerImage, const GeoExtent& tileExtent ) const
{
return prepareImage(layerImage, tileExtent, textureSize() / 2);
}
protected:
GeoImage prepareImage( const GeoImage& layerImage, const GeoExtent& tileExtent, unsigned size ) const;
public:
void applyLayerUpdate(
osg::StateSet* stateSet,
UID layerUID,
const GeoImage& preparedImage,
const TileKey& tileKey,
const TextureLayout& layout,
osg::StateSet* parentStateSet ) const;
osg::Shader* createSamplerFunction( UID layerUID, const std::string& functionName, osg::Shader::Type type, const TextureLayout& layout ) const;
static inline unsigned textureSize() { return 256; }
private:
float _lodTransitionTime;
osg::Texture::FilterMode _minFilter;
osg::Texture::FilterMode _magFilter;
};
}
#endif // OSG_VERSION_GREATER_OR_EQUAL( 2, 9, 8 )
#endif // OSGEARTH_TEXTURE_COMPOSITOR_TEX_ARRAY_H
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