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https://github.com/OpenSpace/OpenSpace.git
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85 lines
4.0 KiB
C++
85 lines
4.0 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2017 *
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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/tile/tileselector.h>
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#include <modules/globebrowsing/rendering/layermanager.h>
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#include <modules/globebrowsing/tile/tileprovider/tileprovider.h>
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namespace openspace {
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namespace globebrowsing {
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ChunkTile TileSelector::getHighestResolutionTile(const LayerGroup& layerGroup,
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TileIndex tileIndex)
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{
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ChunkTile mostHighResolution;
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mostHighResolution.tile = Tile::TileUnavailable;
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mostHighResolution.uvTransform.uvScale.x = 0;
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for (const auto& layer : layerGroup.activeLayers()) {
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ChunkTile chunkTile = layer->tileProvider()->getChunkTile(tileIndex);
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bool tileIsOk = chunkTile.tile.status == Tile::Status::OK;
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bool tileHasMetaData = chunkTile.tile.metaData != nullptr;
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bool tileIsHigherResolution =
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chunkTile.uvTransform.uvScale.x > mostHighResolution.uvTransform.uvScale.x;
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if (tileIsOk && tileHasMetaData && tileIsHigherResolution) {
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mostHighResolution = chunkTile;
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}
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}
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return mostHighResolution;
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}
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std::vector<ChunkTile> TileSelector::getTilesSortedByHighestResolution(
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const LayerGroup& layerGroup,
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const TileIndex& tileIndex)
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{
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std::vector<ChunkTile> tiles;
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for (const auto& layer : layerGroup.activeLayers()) {
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tiles.push_back(layer->tileProvider()->getChunkTile(tileIndex));
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}
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std::sort(
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tiles.begin(),
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tiles.end(),
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[](const ChunkTile& lhs, const ChunkTile& rhs) {
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return lhs.uvTransform.uvScale.x > rhs.uvTransform.uvScale.x;
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}
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);
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return tiles;
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}
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void TileSelector::ascendToParent(TileIndex& tileIndex, TileUvTransform& uv) {
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uv.uvOffset *= 0.5;
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uv.uvScale *= 0.5;
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uv.uvOffset += tileIndex.positionRelativeParent();
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--tileIndex;
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}
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} // namespace globebrowsing
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} // namespace openspace
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