sprite_internal.h

#ifndef __LIBDRAGON_SPRITE_INTERNAL_H
#define __LIBDRAGON_SPRITE_INTERNAL_H
 
#include <stdbool.h>
#include <surface.h>
 
#define SPRITE_FLAG_NUMLODS                 0x0007   
#define SPRITE_FLAG_HAS_TEXPARMS            0x0008   
#define SPRITE_FLAG_HAS_DETAIL              0x0010   
#define SPRITE_FLAG_FITS_TMEM               0x0020   
 
typedef struct sprite_ext_s {
    uint16_t size;              
    uint16_t version;           
    uint32_t pal_file_pos;      
    struct sprite_lod_s {
        uint16_t width;            
        uint16_t height;           
        uint32_t fmt_file_pos;     
    } lods[7];                  
    struct {
        uint16_t flags;             
        uint16_t padding;           
    };
    struct texparms_s {
        struct {
            float   translate;      
            float   repeats;        
            int16_t scale_log;      
            bool    mirror;         
            int8_t  padding;
        } s, t; // S/T directions of texture parameters
    } texparms;                
    struct detail_s {
        struct texparms_s texparms;      
        float             blend_factor;  
        bool              use_main_texture; 
        uint8_t           padding[3];    
    } detail;                    
} sprite_ext_t;
 
_Static_assert(sizeof(sprite_ext_t) == 124, "invalid sizeof(sprite_ext_t)");
 
bool __sprite_upgrade(sprite_t *sprite);
 
#endif