add benchmark mode that shows the real frame time rather than the vsync time

1 files changed, 8 insertions, 2 deletions

diff --git a/include/mbgl/platform/default/glfw_view.hpp b/include/mbgl/platform/default/glfw_view.hpp
index 1bc210b29e..ec99080732 100644
--- a/include/mbgl/platform/default/glfw_view.hpp
+++ b/include/mbgl/platform/default/glfw_view.hpp
@@ -12,7 +12,7 @@
 
 class GLFWView : public mbgl::View {
 public:
-    GLFWView(bool fullscreen = false);
+    GLFWView(bool fullscreen = false, bool benchmark = false);
     ~GLFWView();
 
     float getPixelRatio() const override;
@@ -42,7 +42,7 @@ public:
     void setWindowTitle(const std::string&);
 
     void run();
-    void fps();
+    void report(float duration);
 
 private:
     mbgl::LatLng makeRandomPoint() const;
@@ -61,9 +61,15 @@ private:
 
 private:
     bool fullscreen = false;
+    const bool benchmark = false;
     bool tracking = false;
     bool rotating = false;
 
+    // Frame timer
+    int frames = 0;
+    float frameTime = 0;
+    double lastReported = 0;
+
     int width = 1024;
     int height = 768;
     int fbWidth;