mirror of
https://github.com/OpenSpace/OpenSpace.git
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93 lines
4.1 KiB
C++
93 lines
4.1 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2016 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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#include <modules/globebrowsing/rendering/texturetileset.h>
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#include <ghoul/opengl/texturemanager.h>
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#include <ghoul/io/texture/texturereader.h>
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#include <ghoul/filesystem/filesystem.h>
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#include <ghoul/logging/logmanager.h>
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#include <glm/glm.hpp>
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namespace {
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const std::string _loggerCat = "TextureTileSet";
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}
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namespace openspace {
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TextureTileSet::TextureTileSet()
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{
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_testTexture = std::move(ghoul::io::TextureReader::ref().loadTexture(absPath("textures/earth_bluemarble.jpg")));
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if (_testTexture) {
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LDEBUG("Loaded texture from '" << "textures/earth_bluemarble.jpg" << "'");
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_testTexture->uploadTexture();
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// Textures of planets looks much smoother with AnisotropicMipMap rather than linear
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// TODO: AnisotropicMipMap crashes on ATI cards ---abock
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//_testTexture->setFilter(ghoul::opengl::Texture::FilterMode::AnisotropicMipMap);
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_testTexture->setFilter(ghoul::opengl::Texture::FilterMode::Linear);
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}
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}
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TextureTileSet::~TextureTileSet()
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{
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}
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glm::ivec3 TextureTileSet::getTileIndex(LatLonPatch patch)
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{
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int level = log2(static_cast<int>(glm::max(
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_sizeLevel0.lat / patch.halfSize.lat * 2,
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_sizeLevel0.lon / patch.halfSize.lon * 2)));
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Vec2 TileSize = _sizeLevel0.toLonLatVec2() / pow(2, level);
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glm::ivec2 tileIndex = -(patch.northWestCorner().toLonLatVec2() + _offsetLevel0.toLonLatVec2()) / TileSize;
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return glm::ivec3(tileIndex, level);
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}
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std::shared_ptr<Texture> TextureTileSet::getTile(LatLonPatch patch)
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{
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return getTile(getTileIndex(patch));
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}
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std::shared_ptr<Texture> TextureTileSet::getTile(glm::ivec3 tileIndex)
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{
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return _testTexture;
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}
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LatLonPatch TextureTileSet::getTilePositionAndScale(glm::ivec3 tileIndex)
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{
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LatLon tileSize = LatLon(
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_sizeLevel0.lat / pow(2, tileIndex.z),
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_sizeLevel0.lon / pow(2, tileIndex.z));
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LatLon northWest = LatLon(
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_offsetLevel0.lat + tileIndex.y * tileSize.lat,
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_offsetLevel0.lon + tileIndex.x * tileSize.lon);
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return LatLonPatch(
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LatLon(northWest.lat + tileSize.lat / 2, northWest.lon + tileSize.lon / 2),
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LatLon(tileSize.lat / 2, tileSize.lon / 2));
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}
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} // namespace openspace
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