+ graphic_info[graphic].offset_y = graphic_info[graphic].height;
+ }
+ else /* frames are ordered horizontally */
+ {
+ if (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE)
+ graphic_info[graphic].offset_x = parameter[GFX_ARG_OFFSET];
+ else
+ graphic_info[graphic].offset_x = graphic_info[graphic].width;
+ }
+
+ /* optionally, the x and y offset of frames can be specified directly */
+ if (parameter[GFX_ARG_XOFFSET] != ARG_UNDEFINED_VALUE)
+ graphic_info[graphic].offset_x = parameter[GFX_ARG_XOFFSET];
+ if (parameter[GFX_ARG_YOFFSET] != ARG_UNDEFINED_VALUE)
+ graphic_info[graphic].offset_y = parameter[GFX_ARG_YOFFSET];
+
+ /* automatically determine correct number of frames, if not defined */
+ if (parameter[GFX_ARG_FRAMES] != ARG_UNDEFINED_VALUE)
+ graphic_info[graphic].anim_frames = parameter[GFX_ARG_FRAMES];
+ else if (parameter[GFX_ARG_XPOS] == 0 && !parameter[GFX_ARG_VERTICAL])
+ graphic_info[graphic].anim_frames = num_xtiles;
+ else if (parameter[GFX_ARG_YPOS] == 0 && parameter[GFX_ARG_VERTICAL])
+ graphic_info[graphic].anim_frames = num_ytiles;
+ else
+ graphic_info[graphic].anim_frames = 1;
+
+ graphic_info[graphic].anim_delay = parameter[GFX_ARG_DELAY];
+ if (graphic_info[graphic].anim_delay == 0) /* delay must be at least 1 */
+ graphic_info[graphic].anim_delay = 1;
+
+ if (parameter[GFX_ARG_ANIM_MODE] != ANIM_NONE)
+ graphic_info[graphic].anim_mode = parameter[GFX_ARG_ANIM_MODE];
+ else if (graphic_info[graphic].anim_frames > 1)
+ graphic_info[graphic].anim_mode = ANIM_LOOP;
+
+ /* automatically determine correct start frame, if not defined */
+ if (parameter[GFX_ARG_START_FRAME] == ARG_UNDEFINED_VALUE)
+ graphic_info[graphic].anim_start_frame = 0;
+ else if (graphic_info[graphic].anim_mode & ANIM_REVERSE)
+ graphic_info[graphic].anim_start_frame =
+ graphic_info[graphic].anim_frames - parameter[GFX_ARG_START_FRAME] - 1;
+ else
+ graphic_info[graphic].anim_start_frame = parameter[GFX_ARG_START_FRAME];
+
+ /* animation synchronized with global frame counter, not move position */
+ graphic_info[graphic].anim_global_sync = parameter[GFX_ARG_GLOBAL_SYNC];
+
+ /* this is only used for toon animations */
+ graphic_info[graphic].step_offset = parameter[GFX_ARG_STEP_OFFSET];
+ graphic_info[graphic].step_delay = parameter[GFX_ARG_STEP_DELAY];
+
+ /* this is only used for drawing font characters */
+ graphic_info[graphic].draw_x = parameter[GFX_ARG_DRAW_XOFFSET];
+ graphic_info[graphic].draw_y = parameter[GFX_ARG_DRAW_YOFFSET];
+}
+
+static void InitGraphicInfo()
+{
+ int fallback_graphic = IMG_CHAR_EXCLAM;
+ struct FileInfo *fallback_image = getImageListEntry(fallback_graphic);
+ Bitmap *fallback_bitmap = getBitmapFromImageID(fallback_graphic);
+ int num_images = getImageListSize();
+ int i;
+
+#if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
+ static boolean clipmasks_initialized = FALSE;
+ Pixmap src_pixmap;
+ XGCValues clip_gc_values;
+ unsigned long clip_gc_valuemask;
+ GC copy_clipmask_gc = None;
+#endif