remove hack to set the NanoVG device pixel ratio early on

Author: wjakob

ext/nanovg

@@ -44,8 +44,9 @@
 #if defined(_MSC_VER)
 #  pragma warning (disable: 4505) // don't warn about dead code in stb_image.h
 #elif defined(__GNUC__)
-#   pragma GCC diagnostic ignored "-Wunused-function"
+#  pragma GCC diagnostic ignored "-Wunused-function"
 #endif
+
 #include <stb_image.h>
 
 using namespace nanogui;

src/example1.cpp

@@ -499,6 +499,7 @@ void Screen::initialize(GLFWwindow *window, bool shutdown_glfw) {
 
     if (!m_nvg_context)
         throw std::runtime_error("Could not initialize NanoVG!");
+    nvgSetDevicePixelRatio(m_nvg_context, m_pixel_ratio);
 
     m_visible = glfwGetWindowAttrib(window, GLFW_VISIBLE) != 0;
     set_theme(new Theme(m_nvg_context));
@@ -549,10 +550,6 @@ void Screen::initialize(GLFWwindow *window, bool shutdown_glfw) {
         );
     }
 #endif
-
-    /// Fixes retina display-related font rendering issue (#185)
-    nvgBeginFrame(m_nvg_context, m_size[0], m_size[1], m_pixel_ratio);
-    nvgEndFrame(m_nvg_context);
 }
 
 Screen::~Screen() {