+static void CreateScaledBitmaps(Bitmap *old_bitmap, int zoom_factor,
+ boolean create_small_bitmaps)
+{
+ Bitmap swap_bitmap;
+ Bitmap *new_bitmap;
+ Bitmap *tmp_bitmap_1;
+ Bitmap *tmp_bitmap_2;
+ Bitmap *tmp_bitmap_4;
+ Bitmap *tmp_bitmap_8;
+ Bitmap *tmp_bitmap_16;
+ Bitmap *tmp_bitmap_32;
+ int width_1, height_1;
+ int width_2, height_2;
+ int width_4, height_4;
+ int width_8, height_8;
+ int width_16, height_16;
+ int width_32, height_32;
+ int new_width, new_height;
+
+ /* calculate new image dimensions for normal sized image */
+ width_1 = old_bitmap->width * zoom_factor;
+ height_1 = old_bitmap->height * zoom_factor;
+
+ /* get image with normal size (this might require scaling up) */
+ if (zoom_factor != 1)
+ tmp_bitmap_1 = ZoomBitmap(old_bitmap, width_1, height_1);
+ else
+ tmp_bitmap_1 = old_bitmap;
+
+ /* this is only needed to make compilers happy */
+ tmp_bitmap_2 = NULL;
+ tmp_bitmap_4 = NULL;
+ tmp_bitmap_8 = NULL;
+ tmp_bitmap_16 = NULL;
+ tmp_bitmap_32 = NULL;
+
+ if (create_small_bitmaps)
+ {
+ /* calculate new image dimensions for small images */
+ width_2 = width_1 / 2;
+ height_2 = height_1 / 2;
+ width_4 = width_1 / 4;
+ height_4 = height_1 / 4;
+ width_8 = width_1 / 8;
+ height_8 = height_1 / 8;
+ width_16 = width_1 / 16;
+ height_16 = height_1 / 16;
+ width_32 = width_1 / 32;
+ height_32 = height_1 / 32;
+
+ UPDATE_BUSY_STATE();
+
+ /* get image with 1/2 of normal size (for use in the level editor) */
+ if (zoom_factor != 2)
+ tmp_bitmap_2 = ZoomBitmap(tmp_bitmap_1, width_1 / 2, height_1 / 2);
+ else
+ tmp_bitmap_2 = old_bitmap;
+
+ UPDATE_BUSY_STATE();
+
+ /* get image with 1/4 of normal size (for use in the level editor) */
+ if (zoom_factor != 4)
+ tmp_bitmap_4 = ZoomBitmap(tmp_bitmap_2, width_2 / 2, height_2 / 2);
+ else
+ tmp_bitmap_4 = old_bitmap;
+
+ UPDATE_BUSY_STATE();
+
+ /* get image with 1/8 of normal size (for use on the preview screen) */
+ if (zoom_factor != 8)
+ tmp_bitmap_8 = ZoomBitmap(tmp_bitmap_4, width_4 / 2, height_4 / 2);
+ else
+ tmp_bitmap_8 = old_bitmap;
+
+ UPDATE_BUSY_STATE();
+
+ /* get image with 1/16 of normal size (for use on the preview screen) */
+ if (zoom_factor != 16)
+ tmp_bitmap_16 = ZoomBitmap(tmp_bitmap_8, width_8 / 2, height_8 / 2);
+ else
+ tmp_bitmap_16 = old_bitmap;
+
+ UPDATE_BUSY_STATE();
+
+ /* get image with 1/32 of normal size (for use on the preview screen) */
+ if (zoom_factor != 32)
+ tmp_bitmap_32 = ZoomBitmap(tmp_bitmap_16, width_16 / 2, height_16 / 2);
+ else
+ tmp_bitmap_32 = old_bitmap;
+
+ UPDATE_BUSY_STATE();
+ }
+
+#if 0
+ /* if image was scaled up, create new clipmask for normal size image */
+ if (zoom_factor != 1)
+ {
+#if defined(TARGET_X11)
+ if (old_bitmap->clip_mask)
+ XFreePixmap(display, old_bitmap->clip_mask);
+
+ old_bitmap->clip_mask =
+ Pixmap_to_Mask(tmp_bitmap_1->drawable, width_1, height_1);
+
+ XSetClipMask(display, old_bitmap->stored_clip_gc, old_bitmap->clip_mask);
+#else
+ SDL_Surface *tmp_surface_1 = tmp_bitmap_1->surface;
+
+ if (old_bitmap->surface_masked)
+ SDL_FreeSurface(old_bitmap->surface_masked);
+
+ SDL_SetColorKey(tmp_surface_1, SDL_SRCCOLORKEY,
+ SDL_MapRGB(tmp_surface_1->format, 0x00, 0x00, 0x00));
+ if ((old_bitmap->surface_masked = SDL_DisplayFormat(tmp_surface_1)) ==NULL)
+ Error(ERR_EXIT, "SDL_DisplayFormat() failed");
+ SDL_SetColorKey(tmp_surface_1, 0, 0); /* reset transparent pixel */
+#endif
+ }
+#endif
+
+ if (create_small_bitmaps)
+ {
+ new_width = width_1;
+ new_height = height_1 + (height_1 + 1) / 2; /* prevent odd height */
+
+ new_bitmap = CreateBitmap(new_width, new_height, DEFAULT_DEPTH);
+
+ BlitBitmap(tmp_bitmap_1, new_bitmap, 0, 0, width_1, height_1, 0, 0);
+ BlitBitmap(tmp_bitmap_2, new_bitmap, 0, 0, width_1 / 2, height_1 / 2,
+ 0, height_1);
+ BlitBitmap(tmp_bitmap_4, new_bitmap, 0, 0, width_1 / 4, height_1 / 4,
+ width_1 / 2, height_1);
+ BlitBitmap(tmp_bitmap_8, new_bitmap, 0, 0, width_1 / 8, height_1 / 8,
+ 3 * width_1 / 4, height_1);
+ BlitBitmap(tmp_bitmap_16, new_bitmap, 0, 0, width_1 / 16, height_1 / 16,
+ 7 * width_1 / 8, height_1);
+ BlitBitmap(tmp_bitmap_32, new_bitmap, 0, 0, width_1 / 32, height_1 / 32,
+ 15 * width_1 / 16, height_1);
+
+ UPDATE_BUSY_STATE();
+ }
+ else
+ {
+ new_width = width_1;
+ new_height = height_1;
+
+ new_bitmap = tmp_bitmap_1; /* directly use tmp_bitmap_1 as new bitmap */
+ }
+
+ if (create_small_bitmaps)
+ {
+ /* if no small bitmaps created, tmp_bitmap_1 is used as new bitmap now */
+ if (zoom_factor != 1)
+ FreeBitmap(tmp_bitmap_1);
+
+ if (zoom_factor != 2)
+ FreeBitmap(tmp_bitmap_2);
+
+ if (zoom_factor != 4)
+ FreeBitmap(tmp_bitmap_4);
+
+ if (zoom_factor != 8)
+ FreeBitmap(tmp_bitmap_8);
+
+ if (zoom_factor != 16)
+ FreeBitmap(tmp_bitmap_16);
+
+ if (zoom_factor != 32)
+ FreeBitmap(tmp_bitmap_32);
+ }
+
+ /* replace image with extended image (containing 1/1, 1/2, 1/4, 1/8 size) */
+#if defined(TARGET_SDL)
+ swap_bitmap.surface = old_bitmap->surface;
+ old_bitmap->surface = new_bitmap->surface;
+ new_bitmap->surface = swap_bitmap.surface;
+#else
+ swap_bitmap.drawable = old_bitmap->drawable;
+ old_bitmap->drawable = new_bitmap->drawable;
+ new_bitmap->drawable = swap_bitmap.drawable;
+#endif
+
+ 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, SDL_SRCCOLORKEY,
+ 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, 0, 0); /* reset transparent pixel */
+#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);
+
+#if defined(TARGET_SDL)
+ SDLSetMouseCursor(cursor_new);
+#elif defined(TARGET_X11_NATIVE)
+ X11SetMouseCursor(cursor_new);
+#endif
+#endif
+}
+