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/* $Id$ */
/** @file spritecache.h Functions to cache sprites in memory. */
#ifndef SPRITECACHE_H
#define SPRITECACHE_H
#include "gfx_type.h"
/** Data structure describing a sprite. */
struct Sprite {
byte height; ///< Height of the sprite.
uint16 width; ///< Width of the sprite.
int16 x_offs; ///< Number of pixels to shift the sprite to the right.
int16 y_offs; ///< Number of pixels to shift the sprite downwards.
byte data[]; ///< Sprite data.
};
extern uint _sprite_cache_size;
void *GetRawSprite(SpriteID sprite, SpriteType type);
bool SpriteExists(SpriteID sprite);
static inline const Sprite *GetSprite(SpriteID sprite, SpriteType type)
{
assert(type != ST_RECOLOUR);
return (Sprite*)GetRawSprite(sprite, type);
}
static inline const byte *GetNonSprite(SpriteID sprite, SpriteType type)
{
assert(type == ST_RECOLOUR);
return (byte*)GetRawSprite(sprite, type);
}
void GfxInitSpriteMem();
void IncreaseSpriteLRU();
bool LoadNextSprite(int load_index, byte file_index, uint file_sprite_id);
void DupSprite(SpriteID old_spr, SpriteID new_spr);
#endif /* SPRITECACHE_H */
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