1 /*- 2 * Copyright (c) 1997 by Massimino Pascal <Pascal.Massimon@ens.fr> 3 * 4 * ifs.h: modified iterated functions system for goom. 5 * 6 * Permission to use, copy, modify, and distribute this software and its 7 * documentation for any purpose and without fee is hereby granted, 8 * provided that the above copyright notice appear in all copies and that 9 * both that copyright notice and this permission notice appear in 10 * supporting documentation. 11 * 12 * This file is provided AS IS with no warranties of any kind. The author 13 * shall have no liability with respect to the infringement of copyrights, 14 * trade secrets or any patents by this file or any part thereof. In no 15 * event will the author be liable for any lost revenue or profits or 16 * other special, indirect and consequential damages. 17 * 18 * If this mode is weird and you have an old MetroX server, it is buggy. 19 * There is a free SuSE-enhanced MetroX X server that is fine. 20 * 21 * When shown ifs, Diana Rose (4 years old) said, "It looks like dancing." 22 * 23 * Revision History: 24 * 13-Dec-2003: Added some goom specific stuffs (to make ifs a VisualFX). 25 * 11-Apr-2002: jeko@ios-software.com: Make ifs.c system-indendant. (ifs.h added) 26 * 01-Nov-2000: Allocation checks 27 * 10-May-1997: jwz@jwz.org: turned into a standalone program. 28 * Made it render into an offscreen bitmap and then copy 29 * that onto the screen, to reduce flicker. 30 */ 31 32 #ifndef IFS_H 33 #define IFS_H 34 35 #include "goom_config.h" 36 #include "goom_graphic.h" 37 #include "goom_plugin_info.h" 38 #include "goom_visual_fx.h" 39 40 void ifs_visualfx_create(VisualFX *vfx); 41 42 /* init ifs for a (width)x(height) output. * / 43 void init_ifs (PluginInfo *goomInfo, int width, int height); 44 45 / * draw an ifs on the buffer (which size is width * height) 46 increment means that we draw 1/increment of the ifs's points * / 47 void ifs_update (PluginInfo *goomInfo, Pixel * buffer, Pixel * back, int width, int height, int increment); 48 49 / * free all ifs's data. * / 50 void release_ifs (void); 51 */ 52 53 54 #endif 55