ANDROID: Check for a surface in updateScreen()

3 files changed, 8 insertions, 2 deletions

diff --git a/backends/platform/android/android.cpp b/backends/platform/android/android.cpp
index a61f7daee3..484f6886ec 100644
--- a/backends/platform/android/android.cpp
+++ b/backends/platform/android/android.cpp
@@ -400,8 +400,6 @@ bool OSystem_Android::pollEvent(Common::Event &event) {
 
 			_screen_changeid = JNI::surface_changeid;
 			JNI::deinitSurface();
-
-			// TODO prevent swapBuffers
 		}
 	}
 
diff --git a/backends/platform/android/gfx.cpp b/backends/platform/android/gfx.cpp
index 96ba5e729a..15e517a07f 100644
--- a/backends/platform/android/gfx.cpp
+++ b/backends/platform/android/gfx.cpp
@@ -198,6 +198,9 @@ void OSystem_Android::updateScreen() {
 
 	GLTHREADCHECK;
 
+	if (!JNI::haveSurface())
+		return;
+
 	if (!_force_redraw &&
 			!_game_texture->dirty() &&
 			!_overlay_texture->dirty() &&
diff --git a/backends/platform/android/jni.h b/backends/platform/android/jni.h
index 2a1405dfcc..d2bc89e3d1 100644
--- a/backends/platform/android/jni.h
+++ b/backends/platform/android/jni.h
@@ -60,6 +60,7 @@ public:
 	static void showVirtualKeyboard(bool enable);
 	static void addSysArchivesToSearchSet(Common::SearchSet &s, int priority);
 
+	static inline bool haveSurface();
 	static inline bool swapBuffers();
 	static bool initSurface();
 	static void deinitSurface();
@@ -130,6 +131,10 @@ private:
 	static void enableZoning(JNIEnv *env, jobject self, jboolean enable);
 };
 
+inline bool JNI::haveSurface() {
+	return _jobj_egl_surface != 0;
+}
+
 inline bool JNI::swapBuffers() {
 	JNIEnv *env = JNI::getEnv();