From fc8f33bb3ae66c1e4da7d5db0fd1a38938a0de0b Mon Sep 17 00:00:00 2001
From: Ansis Brammanis <ansis@mapbox.com>
Date: Thu, 17 May 2018 14:54:18 -0400
Subject: add debug code for antimeridian flicker

---
 platform/glfw/glfw_view.cpp | 10 ++++++++++
 platform/glfw/glfw_view.hpp |  1 +
 2 files changed, 11 insertions(+)

diff --git a/platform/glfw/glfw_view.cpp b/platform/glfw/glfw_view.cpp
index 362269b8e4..3eb895b8e7 100644
--- a/platform/glfw/glfw_view.cpp
+++ b/platform/glfw/glfw_view.cpp
@@ -54,6 +54,8 @@ GLFWView::GLFWView(bool fullscreen_, bool benchmark_)
         width = videoMode->width;
         height = videoMode->height;
     }
+    width = 800;
+    height = 500;
 
     glfwWindowHint(GLFW_COCOA_GRAPHICS_SWITCHING, GL_TRUE);
 
@@ -525,6 +527,14 @@ void GLFWView::run() {
         }
 
         glfwPollEvents();
+        auto *view = reinterpret_cast<GLFWView *>(glfwGetWindowUserPointer(window));
+        if ((frameCount / 30) % 2 == 0) {
+            view->map->setLatLng(mbgl::LatLng(0, 170));
+        } else {
+            view->map->setLatLng(mbgl::LatLng(0, -170));
+        }
+
+        frameCount++;
 
         if (dirty && rendererFrontend) {
             dirty = false;
diff --git a/platform/glfw/glfw_view.hpp b/platform/glfw/glfw_view.hpp
index d5acf697f7..20c584ee2f 100644
--- a/platform/glfw/glfw_view.hpp
+++ b/platform/glfw/glfw_view.hpp
@@ -107,6 +107,7 @@ private:
     int frames = 0;
     float frameTime = 0;
     double lastReported = 0;
+    int frameCount = 0;
 
     int width = 1024;
     int height = 768;
-- 
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