fixed bug in DrawLine function; extended DrawLine behavior

[cc65] / include / geos / ggraph.h

diff --git a/include/geos/ggraph.h b/include/geos/ggraph.h
index 6171cf61d146184e06b6ccee5f7e1c5c090dee32..9a81b718119f825011e063e0b30c7dde1d258b69 100644 (file)
--- a/include/geos/ggraph.h
+++ b/include/geos/ggraph.h
@@ -30,7 +30,7 @@ void __fastcall__ InvertRectangle(void);
 void __fastcall__ ImprintRectangle(void);
 void __fastcall__ RecoverRectangle(void);
 
-void __fastcall__ DrawLine(struct window *topBotCoords);
+void __fastcall__ DrawLine(char mode, struct window *topBotCoords);
 
 void __fastcall__ DrawPoint(struct pixel *myPixel);
 char __fastcall__ TestPoint(struct pixel *myPixel);
@@ -166,10 +166,14 @@ void __fastcall__ GraphicsString(char *myGfxString);
 /* justification */
 #define        SET_RIGHTJUST   0
 #define        SET_LEFTJUST    0x80
-/* C128 x flags */
+/* C128 x-extension flags */
 #define        ADD1_W          0x2000
 #define        DOUBLE_B        0x80
 #define        DOUBLE_W        0x8000
+/* DrawLine mode values */
+#define DRAW_ERASE     0x00
+#define DRAW_DRAW      0x40
+#define DRAW_COPY      0x80
 
 typedef void graphicStr;