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allow SDL 1.2 to at least do a 32767 map. We probably should add a TryDo somewhere to assert that limit on SDL 1.2 to avoid overflows. Ditto int version for SDL 2
authornemo
Mon, 30 Dec 2013 23:28:47 -0500
changeset 9892 5a0a7ef7af2d
parent 9890 c9dc04e325e3
child 9894 b7ef8bdaf5d7
allow SDL 1.2 to at least do a 32767 map. We probably should add a TryDo somewhere to assert that limit on SDL 1.2 to avoid overflows. Ditto int version for SDL 2
hedgewars/uLand.pas file | annotate | diff | comparison | revisions 
--- a/hedgewars/uLand.pas	Tue Dec 31 04:56:16 2013 +0100
+++ b/hedgewars/uLand.pas	Mon Dec 30 23:28:47 2013 -0500
@@ -190,19 +190,22 @@
 procedure ColorizeLand(Surface: PSDL_Surface);
 var tmpsurf: PSDL_Surface;
     r: TSDL_Rect;
+    y: LongWord; // stupid SDL 1.2 uses stupid SmallInt for y which limits us to 32767.  But is even worse if LandTex is large, can overflow on 32767 map.
 begin
     tmpsurf:= LoadDataImage(ptCurrTheme, 'LandTex', ifCritical or ifIgnoreCaps);
     r.y:= 0;
-    while r.y < LAND_HEIGHT do
-    begin
+    y:= 0;
+    while y < LAND_HEIGHT do
+        begin
         r.x:= 0;
         while r.x < LAND_WIDTH do
-        begin
+            begin
             SDL_UpperBlit(tmpsurf, nil, Surface, @r);
             inc(r.x, tmpsurf^.w)
+            end;
+        inc(y, tmpsurf^.h);
+        r.y:= y
         end;
-        inc(r.y, tmpsurf^.h)
-    end;
     SDL_FreeSurface(tmpsurf);
 
     // freed in freeModule() below
hedgewars