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OpenSpace/modules/globebrowsing/rendering/texturetileset.h

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/*****************************************************************************************
* *
* OpenSpace *
* *
* Copyright (c) 2014-2016 *
* *
* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
* software and associated documentation files (the "Software"), to deal in the Software *
* without restriction, including without limitation the rights to use, copy, modify, *
* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
* permit persons to whom the Software is furnished to do so, subject to the following *
* conditions: *
* *
* The above copyright notice and this permission notice shall be included in all copies *
* or substantial portions of the Software. *
* *
* 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. *
****************************************************************************************/
#ifndef __TEXTURETILESET_H__
#define __TEXTURETILESET_H__
#include <ghoul/logging/logmanager.h>
#include <ghoul/opengl/texture.h>
#include <modules/globebrowsing/datastructures/latlon.h>
#include <modules/globebrowsing/rendering/texturetile.h>
namespace openspace {
using namespace ghoul::opengl;
class TextureTileSet
{
public:
TextureTileSet(LatLon sizeLevel0, LatLon offsetLevel0, int depth);
~TextureTileSet();
/// Returns the index of the tile at an appropriate level.
/// Appropriate meaning that the tile should be at as high level as possible
/// Without the tile being smaller than the patch in lat-lon space.
/// The tile is at least as big as the patch.
glm::ivec3 getTileIndex(LatLonPatch patch);
std::shared_ptr<Texture> getTile(LatLonPatch patch);
std::shared_ptr<Texture> getTile(glm::ivec3 tileIndex);
LatLonPatch getTilePositionAndScale(glm::ivec3 tileIndex);
glm::mat3 getUvTransformationPatchToTile(LatLonPatch patch, glm::ivec3 tileIndex);
private:
LatLon _sizeLevel0;
LatLon _offsetLevel0;
int _depth;
std::shared_ptr<Texture> _testTexture;
};
} // namespace openspace
#endif // __TEXTURETILESET_H__