From 4483320f0ab1e77fe0969c900bf7f6e30fc2c3fb Mon Sep 17 00:00:00 2001
From: DomRe <8564184+DomRe@users.noreply.github.com>
Date: Fri, 4 Jan 2019 20:11:24 +0800
Subject: [PATCH] Examples: Allegro 5: Properly destroy all globals on
 shutdown. (#2262)

---
 docs/CHANGELOG.txt               | 1 +
 examples/imgui_impl_allegro5.cpp | 9 +++++++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/docs/CHANGELOG.txt b/docs/CHANGELOG.txt
index df5b685b7..5af45c635 100644
--- a/docs/CHANGELOG.txt
+++ b/docs/CHANGELOG.txt
@@ -74,6 +74,7 @@ Other Changes:
 - Demo: Added a few more things under "Child windows" (changing ImGuiCol_ChildBg, positioning child, using IsItemHovered after a child).
 - Examples: DirectX10/11/12: Made imgui_impl_dx10/dx11/dx12.cpp link d3dcompiler.lib from the .cpp file
   to ease integration.
+- Examples: Allegro 5: Properly destroy globals on shutdown to allow for restart. (#2262) [@DomRe]
 
 
 -----------------------------------------------------------------------
diff --git a/examples/imgui_impl_allegro5.cpp b/examples/imgui_impl_allegro5.cpp
index 004638e80..8d5345166 100644
--- a/examples/imgui_impl_allegro5.cpp
+++ b/examples/imgui_impl_allegro5.cpp
@@ -280,9 +280,14 @@ bool ImGui_ImplAllegro5_Init(ALLEGRO_DISPLAY* display)
 void ImGui_ImplAllegro5_Shutdown()
 {
     ImGui_ImplAllegro5_InvalidateDeviceObjects();
-    g_Display = NULL;
 
-    // Destroy last known clipboard data
+    g_Display = NULL;
+    g_Time = 0.0;
+
+    if (g_VertexDecl)
+        al_destroy_vertex_decl(g_VertexDecl);
+    g_VertexDecl = NULL;
+
     if (g_ClipboardTextData)
         al_free(g_ClipboardTextData);
     g_ClipboardTextData = NULL;