X-Git-Url: http://winboard.nl/cgi-bin?a=blobdiff_plain;f=draw.c;h=384ccfb5b1933fda83f538e5550b7a7f0e43c44d;hb=49254d2c6abc5586805adb5186172fabefcad7d9;hp=53156f0a0c629e51e0bf9ab7f8c90f49531cc3b7;hpb=dd67211f46050409861a109a9778af6594279569;p=xboard.git

diff --git a/draw.c b/draw.c
index 53156f0..384ccfb 100644
--- a/draw.c
+++ b/draw.c
@@ -124,13 +124,10 @@ struct {
   int x1, x2, y1, y2;
 } gridSegments[BOARD_RANKS + BOARD_FILES + 2];
 
-static int dual = 0;
-
 void
-SwitchWindow ()
+SwitchWindow (int main)
 {
-    dual = !dual;
-    currBoard = (dual ? &mainOptions[W_BOARD] : &dualOptions[3]);
+    currBoard = (main ? &mainOptions[W_BOARD] : &dualOptions[3]);
     csBoardWindow = DRAWABLE(currBoard);
 }
 
@@ -627,7 +624,7 @@ BlankSquare (cairo_surface_t *dest, int x, int y, int color, ChessSquare piece,
 static void
 pngDrawPiece (cairo_surface_t *dest, ChessSquare piece, int square_color, int x, int y)
 {
-    int kind, p = piece;
+    int kind;
     cairo_t *cr;
 
     if ((int)piece < (int) BlackPawn) {
@@ -636,7 +633,7 @@ pngDrawPiece (cairo_surface_t *dest, ChessSquare piece, int square_color, int x,
 	kind = 1;
 	piece -= BlackPawn;
     }
-    if(appData.upsideDown && flipView) { p += p < BlackPawn ? BlackPawn : -BlackPawn; }// swap white and black pieces
+    if(appData.upsideDown && flipView) kind = 1 - kind; // swap white and black pieces
     BlankSquare(dest, x, y, square_color, piece, 1); // erase previous contents with background
     cr = cairo_create (dest);
     cairo_set_source_surface (cr, pngPieceBitmaps[kind][piece], x, y);