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-rw-r--r--include/mbgl/gl/gl_values.hpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/mbgl/gl/gl_values.hpp b/include/mbgl/gl/gl_values.hpp
index 2ebfe2e687..b96cfe310e 100644
--- a/include/mbgl/gl/gl_values.hpp
+++ b/include/mbgl/gl/gl_values.hpp
@@ -269,6 +269,10 @@ struct PixelZoom {
}
};
+inline bool operator!=(const PixelZoom::Type& a, const PixelZoom::Type& b) {
+ return a.xfactor != b.xfactor || a.yfactor != b.yfactor;
+}
+
struct RasterPos {
using Type = std::array<GLdouble, 4>;
static const Type Default;