--- a/wscript	2018-09-28 14:55:04.887666243 +0800
+++ b/wscript	2018-09-28 14:54:35.499667091 +0800
@@ -44,6 +44,8 @@
     opt.parser.set_default('flavors', [])
     opt.add_option('--for-fbdev', action='store_true', dest = 'fbdev',
                    default = False, help='enable fbdev support')
+    opt.add_option('--img_gpu', action='store_true', dest = 'img_gpu',
+                   default = False, help='enable img gpu support')
     opt.add_option('--no-debug', action='store_false', dest = 'debug',
                    default = True, help='disable compiler debug information')
     opt.add_option('--no-opt', action='store_false', dest = 'opt',
@@ -135,6 +137,8 @@
         ctx.env.prepend_value('CXXFLAGS', '-g')
     if ctx.options.fbdev:
         ctx.env.append_unique('DEFINES','HAS_FBDEV=1')
+    if ctx.options.img_gpu:
+        ctx.env.append_unique('DEFINES','IMG_GPU=1')

     ctx.env.HAVE_EXTRAS = False
     if ctx.options.extras_path is not None:
--- a/src/canvas-generic.cpp	2018-09-28 13:50:56.447777267 +0800
+++ b/src/canvas-generic.cpp	2018-09-28 13:48:25.703781616 +0800
@@ -277,8 +277,9 @@
 bool
 CanvasGeneric::do_make_current()
 {
+#ifndef IMG_GPU
     gl_state_.init_surface(native_window_);
-
+#endif
     if (!gl_state_.valid()) {
         Log::error("CanvasGeneric: Invalid EGL state\n");
         return false;