gamnit: reset the dynamic_resolution context when gamnit is recreated

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/lib/gamnit/dynamic_resolution.nit b/lib/gamnit/dynamic_resolution.nit
index 0219db4..c0a2081 100644 (file)
--- a/lib/gamnit/dynamic_resolution.nit
+++ b/lib/gamnit/dynamic_resolution.nit
@@ -54,7 +54,7 @@ redef class App
 
        private var perf_clock_dynamic_resolution = new Clock is lazy
 
-       redef fun create_scene
+       redef fun create_gamnit
        do
                super
 
@@ -62,6 +62,8 @@ redef class App
                program.compile_and_link
                var error = program.error
                assert error == null else print_error error
+
+               dynamic_context_cache = null
        end
 
        redef fun on_resize(display)
@@ -148,7 +150,17 @@ redef class App
        end
 
        # Framebuffer and texture for dynamic resolution intermediate drawing
-       private var dynamic_context: DynamicContext = create_dynamic_context is lazy
+       private fun dynamic_context: DynamicContext
+       do
+               var cache = dynamic_context_cache
+               if cache != null then return cache
+
+               cache = create_dynamic_context
+               dynamic_context_cache = cache
+               return cache
+       end
+
+       private var dynamic_context_cache: nullable DynamicContext = null
 
        private fun create_dynamic_context: DynamicContext
        do