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-rw-r--r--src/engine/client/graphics.cpp13
1 files changed, 10 insertions, 3 deletions
diff --git a/src/engine/client/graphics.cpp b/src/engine/client/graphics.cpp
index ae0fcade..bf432356 100644
--- a/src/engine/client/graphics.cpp
+++ b/src/engine/client/graphics.cpp
@@ -761,12 +761,19 @@ int CGraphics_OpenGL::Init()
 
 int CGraphics_SDL::TryInit()
 {
-	m_ScreenWidth = g_Config.m_GfxScreenWidth;
-	m_ScreenHeight = g_Config.m_GfxScreenHeight;
-
 	const SDL_VideoInfo *pInfo = SDL_GetVideoInfo();
 	SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE); // prevent stuck mouse cursor sdl-bug when loosing fullscreen focus in windows
 
+	// use current resolution as default
+	if(g_Config.m_GfxScreenWidth == 0 || g_Config.m_GfxScreenHeight == 0)
+	{
+		g_Config.m_GfxScreenWidth = pInfo->current_w;
+		g_Config.m_GfxScreenHeight = pInfo->current_h;
+	}
+
+	m_ScreenWidth = g_Config.m_GfxScreenWidth;
+	m_ScreenHeight = g_Config.m_GfxScreenHeight;
+
 	// set flags
 	int Flags = SDL_OPENGL;
 	if(g_Config.m_DbgResizable)