/usr/include/osgEarth/PatchLayer is in libosgearth-dev 2.9.0+dfsg-1.
This file is owned by root:root, with mode 0o644.
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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 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 | /* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
* Copyright 2016 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_PATCH_LAYER_H
#define OSGEARTH_PATCH_LAYER_H 1
#include <osgEarth/VisibleLayer>
#include <osg/RenderInfo>
#include <osg/Texture>
namespace osgEarth
{
//! Options that govern a PatchLayer
class /*header only*/ PatchLayerOptions : public VisibleLayerOptions
{
public:
PatchLayerOptions(const ConfigOptions& co = ConfigOptions()) : VisibleLayerOptions(co) { }
};
/**
* PatchLayer is a layer that can render terrain tiles using either
* a geometry shader patch (GL_PATCHES) or a custom draw callback.
*/
class OSGEARTH_EXPORT PatchLayer : public VisibleLayer
{
public:
META_Layer(osgEarth, PatchLayer, PatchLayerOptions);
struct TileData : public osg::Referenced
{
osg::ref_ptr<osg::Texture> _texture;
};
struct DrawContext
{
const TileKey* key;
float range;
osg::Texture* colorTexture;
osg::Texture* elevationTexture;
osg::Texture* normalTexture;
osg::Texture* coverageTexture;
DrawContext() : range(0.0f), colorTexture(0), elevationTexture(0), normalTexture(0), coverageTexture(0) { }
};
/**
* Callback that the terrain engine will call for custom tile rendering.
*/
struct DrawCallback : public osg::Referenced
{
virtual void draw(osg::RenderInfo& ri, const DrawContext& di, osg::Referenced* data) =0;
};
/**
* Callback that the terrain engine will call to decide whether to
* render a tile in this layer.
*/
struct AcceptCallback : public osg::Referenced
{
/** Whether to accept the entire layer. Innvoked during Cull. */
virtual bool acceptLayer(osg::NodeVisitor& nv, const osg::Camera* camera) const { return true; }
/** Whether to accept a specific tile. Invoked during Cull. */
virtual bool acceptKey(const TileKey& key) const { return true; }
};
public:
PatchLayer();
/**
* Draw callback to use to render tiles in this layer
*/
void setDrawCallback(DrawCallback* value) { _drawCallback = value; }
DrawCallback* getDrawCallback() const { return _drawCallback.get(); }
/**
* Terrain LOD at which to render tiles in this patch layer
*/
void setAcceptCallback(AcceptCallback* value) { _acceptCallback = value; }
AcceptCallback* getAcceptCallback() const { return _acceptCallback.get(); }
TileData* createTileData(const TileKey& key) { return 0L; }
protected:
//! Subclass constructor
PatchLayer(PatchLayerOptions* options);
/** dtor */
virtual ~PatchLayer() { }
// post-ctor initialization, chain to subclasses.
virtual void init();
private:
osg::ref_ptr<DrawCallback> _drawCallback;
osg::ref_ptr<AcceptCallback> _acceptCallback;
};
typedef std::vector< osg::ref_ptr<PatchLayer> > PatchLayerVector;
} // namespace osgEarth
#endif // OSGEARTH_PATCH_LAYER_H
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