From 64f2d5695256ecfd51a6bc183bf806442d0f97ee Mon Sep 17 00:00:00 2001
From: Holger Schemel <info@artsoft.org>
Date: Tue, 19 May 2015 09:36:20 +0200
Subject: [PATCH] fixed displaying frames per second (debug mode only)

---
 src/game.c  | 38 +++++++++++++++++++-------------------
 src/tools.c | 16 ++++++++++++++++
 2 files changed, 35 insertions(+), 19 deletions(-)

diff --git a/src/game.c b/src/game.c
index 49acec5b..2be5985f 100644
--- a/src/game.c
+++ b/src/game.c
@@ -11202,6 +11202,25 @@ void GameActions()
   CheckLevelTime();
 
   AdvanceFrameAndPlayerCounters(-1);	/* advance counters for all players */
+
+  if (options.debug)			/* calculate frames per second */
+  {
+    static unsigned int fps_counter = 0;
+    static int fps_frames = 0;
+    unsigned int fps_delay_ms = Counter() - fps_counter;
+
+    fps_frames++;
+
+    if (fps_delay_ms >= 500)	/* calculate fps every 0.5 seconds */
+    {
+      global.frames_per_second = 1000 * (float)fps_frames / fps_delay_ms;
+
+      fps_frames = 0;
+      fps_counter = Counter();
+    }
+
+    redraw_mask |= REDRAW_FPS;
+  }
 }
 
 void GameActions_EM_Main()
@@ -11735,25 +11754,6 @@ void GameActions_RND()
   DrawAllPlayers();
   PlayAllPlayersSound();
 
-  if (options.debug)			/* calculate frames per second */
-  {
-    static unsigned int fps_counter = 0;
-    static int fps_frames = 0;
-    unsigned int fps_delay_ms = Counter() - fps_counter;
-
-    fps_frames++;
-
-    if (fps_delay_ms >= 500)	/* calculate fps every 0.5 seconds */
-    {
-      global.frames_per_second = 1000 * (float)fps_frames / fps_delay_ms;
-
-      fps_frames = 0;
-      fps_counter = Counter();
-    }
-
-    redraw_mask |= REDRAW_FPS;
-  }
-
   if (local_player->show_envelope != 0 && local_player->MovPos == 0)
   {
     ShowEnvelope(local_player->show_envelope - EL_ENVELOPE_1);
diff --git a/src/tools.c b/src/tools.c
index 39a0d681..0813343d 100644
--- a/src/tools.c
+++ b/src/tools.c
@@ -419,6 +419,18 @@ void BlitScreenToBitmap(Bitmap *target_bitmap)
   redraw_mask |= REDRAW_FIELD;
 }
 
+void DrawFramesPerSecond()
+{
+  char text[100];
+  int font_nr = FONT_TEXT_2;
+  int font_width = getFontWidth(font_nr);
+
+  sprintf(text, "%04.1f fps", global.frames_per_second);
+
+  DrawTextExt(backbuffer, WIN_XSIZE - font_width * strlen(text), 0, text,
+	      font_nr, BLIT_OPAQUE);
+}
+
 void BackToFront()
 {
   if (redraw_mask == REDRAW_NONE)
@@ -431,6 +443,10 @@ void BackToFront()
   // draw masked border to all viewports, if defined
   DrawMaskedBorder(redraw_mask);
 
+  // draw frames per second (only if debug mode is enabled)
+  if (redraw_mask & REDRAW_FPS)
+    DrawFramesPerSecond();
+
   // redraw complete window if both playfield and (some) doors need redraw
   if (redraw_mask & REDRAW_FIELD && redraw_mask & REDRAW_DOORS)
     redraw_mask = REDRAW_ALL;
-- 
2.34.1