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author | Konstantin Käfer <mail@kkaefer.com> | 2017-07-05 15:38:50 +0200 |
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committer | Konstantin Käfer <mail@kkaefer.com> | 2017-07-24 12:10:45 +0200 |
commit | 4dff51719b27988fe4672bd4022d305b6e7d9816 (patch) | |
tree | 3763369ac44f060ca03a4e008431e4725580c137 /src/mbgl/renderer | |
parent | 541712aac7433856811e2c24dff583333aabd3c8 (diff) | |
download | qtlocation-mapboxgl-4dff51719b27988fe4672bd4022d305b6e7d9816.tar.gz |
[core] add algorithm for computing masks for raster tiles
Diffstat (limited to 'src/mbgl/renderer')
-rw-r--r-- | src/mbgl/renderer/tile_mask.hpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/mbgl/renderer/tile_mask.hpp b/src/mbgl/renderer/tile_mask.hpp new file mode 100644 index 0000000000..5f24d63ba4 --- /dev/null +++ b/src/mbgl/renderer/tile_mask.hpp @@ -0,0 +1,15 @@ +#pragma once + +#include <mbgl/tile/tile_id.hpp> + +#include <set> + +namespace mbgl { + +// A TileMask is a set of TileIDs that describe what part of a tile should be rendered. It omits +// those parts of the tile that are covered by other/better tiles. If the entire tile should be +// rendered, it contains the { 0, 0, 0 } tile. If it's empty, no part of the tile will be rendered. +// TileMasks are typically generated with algorithm::updateTileMasks(). +using TileMask = std::set<CanonicalTileID>; + +} // namespace mbgl |