00001 /* $Id: spritecache.h 19723 2010-04-25 16:27:30Z rubidium $ */ 00002 00003 /* 00004 * This file is part of OpenTTD. 00005 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2. 00006 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 00007 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>. 00008 */ 00009 00012 #ifndef SPRITECACHE_H 00013 #define SPRITECACHE_H 00014 00015 #include "gfx_type.h" 00016 00018 struct Sprite { 00019 byte height; 00020 uint16 width; 00021 int16 x_offs; 00022 int16 y_offs; 00023 byte data[]; 00024 }; 00025 00026 extern uint _sprite_cache_size; 00027 00028 void *GetRawSprite(SpriteID sprite, SpriteType type); 00029 bool SpriteExists(SpriteID sprite); 00030 00031 SpriteType GetSpriteType(SpriteID sprite); 00032 uint GetOriginFileSlot(SpriteID sprite); 00033 uint GetMaxSpriteID(); 00034 00035 00036 static inline const Sprite *GetSprite(SpriteID sprite, SpriteType type) 00037 { 00038 assert(type != ST_RECOLOUR); 00039 return (Sprite*)GetRawSprite(sprite, type); 00040 } 00041 00042 static inline const byte *GetNonSprite(SpriteID sprite, SpriteType type) 00043 { 00044 assert(type == ST_RECOLOUR); 00045 return (byte*)GetRawSprite(sprite, type); 00046 } 00047 00048 void GfxInitSpriteMem(); 00049 void IncreaseSpriteLRU(); 00050 00051 bool LoadNextSprite(int load_index, byte file_index, uint file_sprite_id); 00052 bool SkipSpriteData(byte type, uint16 num); 00053 void DupSprite(SpriteID old_spr, SpriteID new_spr); 00054 00055 #endif /* SPRITECACHE_H */