From 1606713a487508c9581e0422ca165243b8975931 Mon Sep 17 00:00:00 2001
From: Alexander Shalamov <alexander.shalamov@mapbox.com>
Date: Tue, 9 Apr 2019 11:37:43 +0300
Subject: [core] Add optional sortKey to segment

---
 src/mbgl/programs/segment.hpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/mbgl/programs/segment.hpp b/src/mbgl/programs/segment.hpp
index 5976550d2c..98628507c2 100644
--- a/src/mbgl/programs/segment.hpp
+++ b/src/mbgl/programs/segment.hpp
@@ -14,11 +14,13 @@ public:
     Segment(std::size_t vertexOffset_,
             std::size_t indexOffset_,
             std::size_t vertexLength_ = 0,
-            std::size_t indexLength_ = 0)
+            std::size_t indexLength_ = 0,
+            unsigned int sortKey_ = 0u)
         : vertexOffset(vertexOffset_),
           indexOffset(indexOffset_),
           vertexLength(vertexLength_),
-          indexLength(indexLength_) {}
+          indexLength(indexLength_),
+          sortKey(sortKey_) {}
 
     Segment(Segment&&) = default;
 
@@ -36,6 +38,8 @@ public:
     //   * when two fill layers have the same layout properties, but one
     //     uses fill-color and the other uses fill-pattern
     mutable std::map<std::string, gfx::DrawScope> drawScopes;
+
+    unsigned int sortKey;
 };
 
 template <class AttributeList>
-- 
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