mouse cursor drawing part2

diff --git a/src/demo.c b/src/demo.c
index 7d927ea..06b33f3 100644 (file)
--- a/src/demo.c
+++ b/src/demo.c
@@ -111,41 +111,55 @@ void demo_draw(void)
 void draw_mouse_pointer(uint16_t *fb)
 {
        uint16_t *dest = fb + mouse_y * FB_WIDTH + mouse_x;
 void draw_mouse_pointer(uint16_t *fb)
 {
        uint16_t *dest = fb + mouse_y * FB_WIDTH + mouse_x;

-
-       DEST(0, 0) = 0xffff;
-       DEST(1, 1) = 0xffff;
-       DEST(2, 2) = 0xffff;
-       DEST(3, 3) = 0xffff;
-       DEST(4, 4) = 0xffff;
-       DEST(5, 5) = 0xffff;
-       DEST(6, 6) = 0xffff;
-       DEST(0, 1) = 0xffff;
-       DEST(0, 2) = 0xffff;
-       DEST(0, 3) = 0xffff;
-       DEST(0, 4) = 0xffff;
-       DEST(0, 5) = 0xffff;
-       DEST(0, 6) = 0xffff;
-       DEST(0, 7) = 0xffff;
-       DEST(0, 8) = 0xffff;
-       DEST(0, 9) = 0xffff;
-       DEST(1, 8) = 0xffff;
-       DEST(2, 7) = 0xffff;
-       DEST(3, 6) = 0xffff;
-       DEST(4, 6) = 0xffff;
-       DEST(5, 6) = 0xffff;
-       DEST(1, 2) = 0;
-       DEST(1, 3) = 0;
-       DEST(2, 3) = 0;
-       DEST(1, 4) = 0;
-       DEST(2, 4) = 0;
-       DEST(3, 4) = 0;
-       DEST(1, 5) = 0;
-       DEST(2, 5) = 0;
-       DEST(3, 5) = 0;
-       DEST(4, 5) = 0;
-       DEST(1, 6) = 0;
-       DEST(2, 6) = 0;
-       DEST(1, 7) = 0;
+       int ylines = FB_HEIGHT - mouse_y;
+
+       switch(ylines) {
+       default:
+       case 10:
+               DEST(0, 9) = 0xffff;
+       case 9:
+               DEST(0, 8) = 0xffff;
+               DEST(1, 8) = 0xffff;
+       case 8:
+               DEST(0, 7) = 0xffff;
+               DEST(2, 7) = 0xffff;
+               DEST(1, 7) = 0;
+       case 7:
+               DEST(6, 6) = 0xffff;
+               DEST(0, 6) = 0xffff;
+               DEST(3, 6) = 0xffff;
+               DEST(4, 6) = 0xffff;
+               DEST(5, 6) = 0xffff;
+               DEST(1, 6) = 0;
+               DEST(2, 6) = 0;
+       case 6:
+               DEST(5, 5) = 0xffff;
+               DEST(0, 5) = 0xffff;
+               DEST(1, 5) = 0;
+               DEST(2, 5) = 0;
+               DEST(3, 5) = 0;
+               DEST(4, 5) = 0;
+       case 5:
+               DEST(4, 4) = 0xffff;
+               DEST(0, 4) = 0xffff;
+               DEST(1, 4) = 0;
+               DEST(2, 4) = 0;
+               DEST(3, 4) = 0;
+       case 4:
+               DEST(3, 3) = 0xffff;
+               DEST(0, 3) = 0xffff;
+               DEST(1, 3) = 0;
+               DEST(2, 3) = 0;
+       case 3:
+               DEST(2, 2) = 0xffff;
+               DEST(0, 2) = 0xffff;
+               DEST(1, 2) = 0;
+       case 2:
+               DEST(1, 1) = 0xffff;
+               DEST(0, 1) = 0xffff;
+       case 1:
+               DEST(0, 0) = 0xffff;
+       }

 }
 
 static void change_screen(int idx)
 }
 
 static void change_screen(int idx)