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authorJohn Firebaugh <john.firebaugh@gmail.com>2016-12-12 13:18:03 -0800
committerIvo van Dongen <ivovandongen@users.noreply.github.com>2016-12-13 14:19:30 -0500
commit6cc0dd01bdc59204af743e1d59eb38a76228e323 (patch)
tree444f2082dae12be4a4d093b7143b8ce1bf4670e7
parent4f333a0d00ea95d62c781c268f56eb1ac475efb9 (diff)
downloadqtlocation-mapboxgl-6cc0dd01bdc59204af743e1d59eb38a76228e323.tar.gz
[core] Ensure a non-zero source tile cache size
Previously, for viewport sizes less than 512 pixels in either direction, the computed size was 0.
-rw-r--r--src/mbgl/style/source_impl.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mbgl/style/source_impl.cpp b/src/mbgl/style/source_impl.cpp
index 0fbd205949..74a195f155 100644
--- a/src/mbgl/style/source_impl.cpp
+++ b/src/mbgl/style/source_impl.cpp
@@ -139,8 +139,8 @@ void Source::Impl::updateTiles(const UpdateParameters& parameters) {
if (type != SourceType::Annotations && cache.getSize() == 0) {
size_t conservativeCacheSize =
- ((float)parameters.transformState.getSize().width / util::tileSize) *
- ((float)parameters.transformState.getSize().height / util::tileSize) *
+ std::max((float)parameters.transformState.getSize().width / util::tileSize, 1.0f) *
+ std::max((float)parameters.transformState.getSize().height / util::tileSize, 1.0f) *
(parameters.transformState.getMaxZoom() - parameters.transformState.getMinZoom() + 1) *
0.5;
cache.setSize(conservativeCacheSize);