add check to avoid calling RETRO_ENVIRONMENT_SET_GEOMETRY unnecessarily

diff --git a/frontend/libretro.c b/frontend/libretro.c
index 92cc9e6..91f1b51 100644 (file)
--- a/frontend/libretro.c
+++ b/frontend/libretro.c
@@ -76,6 +76,9 @@ static bool display_internal_fps = false;
 static unsigned frame_count = 0;
 static bool libretro_supports_bitmasks = false;
 
+static unsigned previous_width = 0;
+static unsigned previous_height = 0;
+
 static int plugins_opened;
 static int is_pal_mode;
 
@@ -180,11 +183,17 @@ static void vout_set_mode(int w, int h, int raw_w, int raw_h, int bpp)
   vout_width = w;
   vout_height = h;
 
+       if (previous_width != vout_width || previous_height != vout_height)
+       {
+               previous_width = vout_width;
+               previous_height = vout_height;
+
        SysPrintf("setting mode width: %d height %d\n", vout_width, vout_height);
 
        struct retro_system_av_info info;
        retro_get_system_av_info(&info);
        environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &info.geometry);
+       }
 
   set_vout_fb();
 }