From 8aff62f5ea7440d40f8ddb00808a6da3772260ce Mon Sep 17 00:00:00 2001
From: Ilya Glushchenko <ilia.glushchenko@gmail.com>
Date: Fri, 25 Oct 2019 11:46:03 +0300
Subject: [PATCH] Support for Glbinding loader library in OpenGL3 example.

---
 examples/example_sdl_opengl3/main.cpp | 3 +++
 examples/imgui_impl_opengl3.cpp       | 3 +++
 examples/imgui_impl_opengl3.h         | 2 ++
 3 files changed, 8 insertions(+)

diff --git a/examples/example_sdl_opengl3/main.cpp b/examples/example_sdl_opengl3/main.cpp
index 03cd3a7bdd90..ca82e824965c 100644
--- a/examples/example_sdl_opengl3/main.cpp
+++ b/examples/example_sdl_opengl3/main.cpp
@@ -19,6 +19,9 @@
 #include <GL/glew.h>    // Initialize with glewInit()
 #elif defined(IMGUI_IMPL_OPENGL_LOADER_GLAD)
 #include <glad/glad.h>  // Initialize with gladLoadGL()
+#elif defined(IMGUI_IMPL_OPENGL_LOADER_GLBINDING)
+#include <glbinding/gl/gl.h>  // glbinding::Binding::initialize();
+using namespace gl;
 #else
 #include IMGUI_IMPL_OPENGL_LOADER_CUSTOM
 #endif
diff --git a/examples/imgui_impl_opengl3.cpp b/examples/imgui_impl_opengl3.cpp
index 3824647aebb9..333ee8d2701e 100644
--- a/examples/imgui_impl_opengl3.cpp
+++ b/examples/imgui_impl_opengl3.cpp
@@ -114,6 +114,9 @@
 #include <GL/glew.h>    // Needs to be initialized with glewInit() in user's code
 #elif defined(IMGUI_IMPL_OPENGL_LOADER_GLAD)
 #include <glad/glad.h>  // Needs to be initialized with gladLoadGL() in user's code
+#elif defined(IMGUI_IMPL_OPENGL_LOADER_GLBINDING)
+#include <glbinding/gl/gl.h> // Needs to be initialized with gladLoadGL() in user's code
+using namespace gl;  // Has to be set to expose OpenGL to the global namespace
 #else
 #include IMGUI_IMPL_OPENGL_LOADER_CUSTOM
 #endif
diff --git a/examples/imgui_impl_opengl3.h b/examples/imgui_impl_opengl3.h
index 2d10ea30263b..7289c2dde039 100644
--- a/examples/imgui_impl_opengl3.h
+++ b/examples/imgui_impl_opengl3.h
@@ -54,6 +54,8 @@ IMGUI_IMPL_API void     ImGui_ImplOpenGL3_DestroyDeviceObjects();
             #define IMGUI_IMPL_OPENGL_LOADER_GLAD
         #elif __has_include(<GL/gl3w.h>)
             #define IMGUI_IMPL_OPENGL_LOADER_GL3W
+        #elif __has_include(<glbinding/gl/gl.h>)
+            #define IMGUI_IMPL_OPENGL_LOADER_GLBINDING
         #else
             #error "Cannot detect OpenGL loader!"
         #endif