+ old_bitmap->width = new_bitmap->width;
+ old_bitmap->height = new_bitmap->height;
+
+#if 1
+ /* this replaces all blit masks created when loading -- maybe optimize this */
+ {
+#if defined(TARGET_X11)
+ if (old_bitmap->clip_mask)
+ XFreePixmap(display, old_bitmap->clip_mask);
+
+ old_bitmap->clip_mask =
+ Pixmap_to_Mask(old_bitmap->drawable, new_width, new_height);
+
+ XSetClipMask(display, old_bitmap->stored_clip_gc, old_bitmap->clip_mask);
+#else
+ SDL_Surface *old_surface = old_bitmap->surface;
+
+ if (old_bitmap->surface_masked)
+ SDL_FreeSurface(old_bitmap->surface_masked);
+
+ SDL_SetColorKey(old_surface, SET_TRANSPARENT_PIXEL,
+ SDL_MapRGB(old_surface->format, 0x00, 0x00, 0x00));
+ if ((old_bitmap->surface_masked = SDL_DisplayFormat(old_surface)) ==NULL)
+ Error(ERR_EXIT, "SDL_DisplayFormat() failed");
+ SDL_SetColorKey(old_surface, UNSET_TRANSPARENT_PIXEL, 0);
+#endif
+ }
+#endif
+
+ UPDATE_BUSY_STATE();
+
+ FreeBitmap(new_bitmap); /* this actually frees the _old_ bitmap now */
+}
+
+void CreateBitmapWithSmallBitmaps(Bitmap *old_bitmap, int zoom_factor)
+{
+ CreateScaledBitmaps(old_bitmap, zoom_factor, TRUE);
+}
+
+void ScaleBitmap(Bitmap *old_bitmap, int zoom_factor)
+{
+ CreateScaledBitmaps(old_bitmap, zoom_factor, FALSE);
+}
+
+
+/* ------------------------------------------------------------------------- */
+/* mouse pointer functions */
+/* ------------------------------------------------------------------------- */
+
+#if !defined(PLATFORM_MSDOS)
+#define USE_ONE_PIXEL_PLAYFIELD_MOUSEPOINTER 0
+/* XPM image definitions */
+static const char *cursor_image_none[] =
+{
+ /* width height num_colors chars_per_pixel */
+ " 16 16 3 1",
+
+ /* colors */
+ "X c #000000",
+ ". c #ffffff",
+ " c None",
+
+ /* pixels */
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+
+ /* hot spot */
+ "0,0"
+};
+#if USE_ONE_PIXEL_PLAYFIELD_MOUSEPOINTER
+static const char *cursor_image_dot[] =
+{
+ /* width height num_colors chars_per_pixel */
+ " 16 16 3 1",
+
+ /* colors */
+ "X c #000000",
+ ". c #ffffff",
+ " c None",
+
+ /* pixels */
+ " X ",
+ "X.X ",
+ " X ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+ " ",
+
+ /* hot spot */
+ "1,1"
+};
+static const char **cursor_image_playfield = cursor_image_dot;
+#else
+/* some people complained about a "white dot" on the screen and thought it
+ was a graphical error... OK, let's just remove the whole pointer :-) */
+static const char **cursor_image_playfield = cursor_image_none;
+#endif
+
+#if defined(TARGET_SDL)
+static const int cursor_bit_order = BIT_ORDER_MSB;
+#elif defined(TARGET_X11_NATIVE)
+static const int cursor_bit_order = BIT_ORDER_LSB;
+#endif
+
+static struct MouseCursorInfo *get_cursor_from_image(const char **image)
+{
+ struct MouseCursorInfo *cursor;
+ boolean bit_order_msb = (cursor_bit_order == BIT_ORDER_MSB);
+ int header_lines = 4;
+ int x, y, i;
+
+ cursor = checked_calloc(sizeof(struct MouseCursorInfo));
+
+ sscanf(image[0], " %d %d ", &cursor->width, &cursor->height);
+
+ i = -1;
+ for (y = 0; y < cursor->width; y++)
+ {
+ for (x = 0; x < cursor->height; x++)
+ {
+ int bit_nr = x % 8;
+ int bit_mask = 0x01 << (bit_order_msb ? 7 - bit_nr : bit_nr );
+
+ if (bit_nr == 0)
+ {
+ i++;
+ cursor->data[i] = cursor->mask[i] = 0;
+ }
+
+ switch (image[header_lines + y][x])
+ {
+ case 'X':
+ cursor->data[i] |= bit_mask;
+ cursor->mask[i] |= bit_mask;
+ break;
+
+ case '.':
+ cursor->mask[i] |= bit_mask;
+ break;
+
+ case ' ':
+ break;
+ }
+ }
+ }
+
+ sscanf(image[header_lines + y], "%d,%d", &cursor->hot_x, &cursor->hot_y);
+
+ return cursor;
+}
+#endif /* !PLATFORM_MSDOS */
+
+void SetMouseCursor(int mode)
+{
+#if !defined(PLATFORM_MSDOS)
+ static struct MouseCursorInfo *cursor_none = NULL;
+ static struct MouseCursorInfo *cursor_playfield = NULL;
+ struct MouseCursorInfo *cursor_new;
+
+ if (cursor_none == NULL)
+ cursor_none = get_cursor_from_image(cursor_image_none);
+
+ if (cursor_playfield == NULL)
+ cursor_playfield = get_cursor_from_image(cursor_image_playfield);
+
+ cursor_new = (mode == CURSOR_DEFAULT ? NULL :
+ mode == CURSOR_NONE ? cursor_none :
+ mode == CURSOR_PLAYFIELD ? cursor_playfield : NULL);