From 4efce7813f9315cda970e7f48be030c8c108d9f0 Mon Sep 17 00:00:00 2001
From: Holger Schemel <info@artsoft.org>
Date: Tue, 19 May 2015 09:46:47 +0200
Subject: [PATCH] cleanup of redraw masks

---
 src/game.c           |  2 --
 src/libgame/system.h | 21 +++++----------------
 src/libgame/toons.c  |  2 +-
 src/tools.c          | 12 ++++--------
 4 files changed, 10 insertions(+), 27 deletions(-)

diff --git a/src/game.c b/src/game.c
index 2be5985f..6a896768 100644
--- a/src/game.c
+++ b/src/game.c
@@ -3916,8 +3916,6 @@ void InitGame()
 
   /* blit playfield from scroll buffer to normal back buffer for fading in */
   BlitScreenToBitmap(backbuffer);
-
-  redraw_mask |= REDRAW_FROM_BACKBUFFER;
   /* !!! FIX THIS (END) !!! */
 
   FadeIn(REDRAW_FIELD);
diff --git a/src/libgame/system.h b/src/libgame/system.h
index a6e9b9f3..85ab383f 100644
--- a/src/libgame/system.h
+++ b/src/libgame/system.h
@@ -291,25 +291,14 @@
 #define REDRAW_NONE		(0)
 #define REDRAW_ALL		(1 << 0)
 #define REDRAW_FIELD		(1 << 1)
-#define REDRAW_TILES		(1 << 2)
-#define REDRAW_DOOR_1		(1 << 3)
-#define REDRAW_VIDEO_1		(1 << 4)
-#define REDRAW_VIDEO_2		(1 << 5)
-#define REDRAW_VIDEO_3		(1 << 6)
-#define REDRAW_MICROLEVEL	(1 << 7)
-#define REDRAW_MICROLABEL	(1 << 8)
-#define REDRAW_FROM_BACKBUFFER	(1 << 9)
-#define REDRAW_DOOR_2		(REDRAW_VIDEO_1 | \
-				 REDRAW_VIDEO_2 | \
-				 REDRAW_VIDEO_3)
-#define REDRAW_DOOR_3		(1 << 10)
+#define REDRAW_DOOR_1		(1 << 2)
+#define REDRAW_DOOR_2		(1 << 3)
+#define REDRAW_DOOR_3		(1 << 4)
+#define REDRAW_FPS		(1 << 5)
+
 #define REDRAW_DOORS		(REDRAW_DOOR_1 | \
 				 REDRAW_DOOR_2 | \
 				 REDRAW_DOOR_3)
-#define REDRAW_MAIN		(REDRAW_FIELD | \
-				 REDRAW_TILES | \
-				 REDRAW_MICROLEVEL)
-#define REDRAW_FPS		(1 << 11)
 
 #define IN_GFX_FIELD_PLAY(x, y)	(x >= gfx.sx && x < gfx.sx + gfx.sxsize && \
 				 y >= gfx.sy && y < gfx.sy + gfx.sysize)
diff --git a/src/libgame/toons.c b/src/libgame/toons.c
index c9bf81cc..b41b9386 100644
--- a/src/libgame/toons.c
+++ b/src/libgame/toons.c
@@ -352,7 +352,7 @@ void HandleAnimation(int mode)
     case ANIM_STOP:
       if (anim_running)
       {
-	redraw_mask |= (REDRAW_FIELD | REDRAW_FROM_BACKBUFFER);
+	redraw_mask |= REDRAW_FIELD;
 
 	screen_info.update_function();
 
diff --git a/src/tools.c b/src/tools.c
index 0813343d..16985341 100644
--- a/src/tools.c
+++ b/src/tools.c
@@ -436,10 +436,6 @@ void BackToFront()
   if (redraw_mask == REDRAW_NONE)
     return;
 
-  // redraw playfield if anything inside main playfield area needs redraw
-  if (redraw_mask & REDRAW_MAIN)
-    redraw_mask |= REDRAW_FIELD;
-
   // draw masked border to all viewports, if defined
   DrawMaskedBorder(redraw_mask);
 
@@ -1975,7 +1971,7 @@ void AnimateEnvelope(int envelope_nr, int anim_mode, int action)
 		   level.envelope[envelope_nr].autowrap,
 		   level.envelope[envelope_nr].centered, FALSE);
 
-    redraw_mask |= REDRAW_FIELD | REDRAW_FROM_BACKBUFFER;
+    redraw_mask |= REDRAW_FIELD;
     BackToFront();
 
     SkipUntilDelayReached(&anim_delay, anim_delay_value, &i, last_frame);
@@ -2221,7 +2217,7 @@ void AnimateEnvelopeRequest(int anim_mode, int action)
       }
     }
 
-    redraw_mask |= REDRAW_FIELD | REDRAW_FROM_BACKBUFFER;
+    redraw_mask |= REDRAW_FIELD;
 
     DoAnimation();
     BackToFront();
@@ -2413,7 +2409,7 @@ static void DrawPreviewLevelPlayfieldExt(int from_x, int from_y)
     }
   }
 
-  redraw_mask |= REDRAW_MICROLEVEL;
+  redraw_mask |= REDRAW_FIELD;
 }
 
 #define MICROLABEL_EMPTY		0
@@ -2482,7 +2478,7 @@ static void DrawPreviewLevelLabelExt(int mode)
   if (strlen(label_text) > 0)
     DrawTextSAligned(pos->x, pos->y, label_text, font_nr, pos->align);
 
-  redraw_mask |= REDRAW_MICROLEVEL;
+  redraw_mask |= REDRAW_FIELD;
 }
 
 static void DrawPreviewLevelExt(boolean restart)
-- 
2.34.1