+}
+
+void BlitBitmapMasked(Bitmap *src_bitmap, Bitmap *dst_bitmap,
+ int src_x, int src_y, int width, int height,
+ int dst_x, int dst_y)
+{
+ if (DrawingDeactivated(dst_x, dst_y, width, height))
+ return;
+
+ sysCopyArea(src_bitmap, dst_bitmap, src_x, src_y, width, height,
+ dst_x, dst_y, BLIT_MASKED);
+}
+
+void BlitBitmapOnBackground(Bitmap *src_bitmap, Bitmap *dst_bitmap,
+ int src_x, int src_y, int width, int height,
+ int dst_x, int dst_y)
+{
+ if (DrawingOnBackground(dst_x, dst_y))
+ {
+ /* draw background */
+ BlitBitmap(gfx.background_bitmap, dst_bitmap, dst_x, dst_y, width, height,
+ dst_x, dst_y);
+
+ /* draw foreground */
+ SetClipOrigin(src_bitmap, src_bitmap->stored_clip_gc,
+ dst_x - src_x, dst_y - src_y);
+ BlitBitmapMasked(src_bitmap, dst_bitmap, src_x, src_y, width, height,
+ dst_x, dst_y);
+ }
+ else
+ BlitBitmap(src_bitmap, dst_bitmap, src_x, src_y, width, height,
+ dst_x, dst_y);
+}
+
+void DrawSimpleBlackLine(Bitmap *bitmap, int from_x, int from_y,
+ int to_x, int to_y)
+{
+#if defined(TARGET_SDL)
+ SDLDrawSimpleLine(bitmap, from_x, from_y, to_x, to_y, BLACK_PIXEL);
+#else
+ X11DrawSimpleLine(bitmap, from_x, from_y, to_x, to_y, BLACK_PIXEL);
+#endif
+}
+
+void DrawSimpleWhiteLine(Bitmap *bitmap, int from_x, int from_y,
+ int to_x, int to_y)
+{
+#if defined(TARGET_SDL)
+ SDLDrawSimpleLine(bitmap, from_x, from_y, to_x, to_y, WHITE_PIXEL);
+#else
+ X11DrawSimpleLine(bitmap, from_x, from_y, to_x, to_y, WHITE_PIXEL);
+#endif
+}
+
+#if !defined(TARGET_X11_NATIVE)
+void DrawLine(Bitmap *bitmap, int from_x, int from_y,
+ int to_x, int to_y, Pixel pixel, int line_width)
+{
+ int x, y;
+
+ for (x = 0; x < line_width; x++)
+ {
+ for (y = 0; y < line_width; y++)
+ {
+ int dx = x - line_width / 2;
+ int dy = y - line_width / 2;
+
+ if ((x == 0 && y == 0) ||
+ (x == 0 && y == line_width - 1) ||
+ (x == line_width - 1 && y == 0) ||
+ (x == line_width - 1 && y == line_width - 1))
+ continue;
+
+#if defined(TARGET_SDL)
+ SDLDrawLine(bitmap,
+ from_x + dx, from_y + dy, to_x + dx, to_y + dy, pixel);
+#elif defined(TARGET_ALLEGRO)
+ AllegroDrawLine(bitmap->drawable, from_x + dx, from_y + dy,
+ to_x + dx, to_y + dy, pixel);
+#endif
+ }
+ }
+}
+#endif
+
+void DrawLines(Bitmap *bitmap, struct XY *points, int num_points, Pixel pixel)
+{
+#if !defined(TARGET_X11_NATIVE)
+ int line_width = 4;
+ int i;
+
+ for (i = 0; i < num_points - 1; i++)
+ DrawLine(bitmap, points[i].x, points[i].y,
+ points[i + 1].x, points[i + 1].y, pixel, line_width);
+
+ /*
+ SDLDrawLines(bitmap->surface, points, num_points, pixel);
+ */
+#else
+ XSetForeground(display, bitmap->line_gc[1], pixel);
+ XDrawLines(display, bitmap->drawable, bitmap->line_gc[1],
+ (XPoint *)points, num_points, CoordModeOrigin);