(svn r13674) -Fix [FS#2127]: crash when drawing a non-real sprite. The drawing of the non-real sprite is caused when two NewGRFs replace the same sprite and the first replaces it with a real sprite (and thus assumes it remains a real sprite) and the second replaces it with a non-real sprite. OpenTTD already looked at whether the sprite to load should be seen as a real or non-real sprite, but it failed to replace non-real sprites with a substitute real sprite when getting the sprite from the cache.
/* $Id$ */
#ifndef NEWGRF_TEXT_H
#define NEWGRF_TEXT_H
/** @file newgrf_text.h
* Header of Action 04 "universal holder" structure and functions
*/
StringID AddGRFString(uint32 grfid, uint16 stringid, byte langid, bool new_scheme, const char *text_to_add, StringID def_string);
StringID GetGRFStringID(uint32 grfid, uint16 stringid);
const char *GetGRFStringPtr(uint16 stringid);
void CleanUpStrings();
void SetCurrentGrfLangID(const char *iso_name);
char *TranslateTTDPatchCodes(uint32 grfid, const char *str);
bool CheckGrfLangID(byte lang_id, byte grf_version);
void PrepareTextRefStackUsage(byte numEntries);
void StopTextRefStackUsage();
void SwitchToNormalRefStack();
void SwitchToErrorRefStack();
void RewindTextRefStack();
uint RemapNewGRFStringControlCode(uint scc, char **buff, const char **str, int64 *argv);
#endif /* NEWGRF_TEXT_H */