Grayscale support for rockboy - can't work without markuns patch,

needs rockbox' internal framebuffer in 2 bit (4 pixels / byte) format.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6132 a1c6a512-1295-4272-9138-f99709370657

apps/plugins/rockboy/lcd.c

@@ -753,8 +753,12 @@ void lcd_refreshline(void)
     L = R_LY;
 #if LCD_HEIGHT == 64
     scanline_ind = (L/2) % 8;
+#else
+#ifdef GRAYSCALE
+    scanline_ind = L % 4;
 #else
     scanline_ind = L % 8;
+#endif
 #endif
     X = R_SCX;
     Y = (R_SCY + L) & 0xff;
@@ -797,7 +801,11 @@ void lcd_refreshline(void)
     if (scale == 1) density = 1;
     dest = vdest;
 */
+#ifdef GRAYSCALE
+    if (scanline_ind == 3)
+#else
     if (scanline_ind == 7)
+#endif
         vid_update(L);
   //  vdest += fb.pitch * scale;
 }