include/gba/types.h


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#ifndef GUARD_GBA_TYPES_H
#define GUARD_GBA_TYPES_H

typedef unsigned char  u8;
typedef unsigned short u16;
typedef unsigned int   u32;
typedef signed char    s8;
typedef signed short   s16;
typedef signed int     s32;

typedef volatile u8  vu8;
typedef volatile u16 vu16;
typedef volatile u32 vu32;
typedef volatile s8  vs8;
typedef volatile s16 vs16;
typedef volatile s32 vs32;

typedef float  f32;
typedef double f64;

typedef u8  bool8;
typedef u16 bool16;
typedef u32 bool32;

struct OamData
{
    u32 y:8;
    u32 affineMode:2;
    u32 objMode:2;
    u32 mosaic:1;
    u32 bpp:1;
    u32 shape:2;

    u32 x:9;
    u32 matrixNum:5; // bits 3/4 are h-flip/v-flip if not in affine mode
    u32 size:2;

    u16 tileNum:10;
    u16 priority:2;
    u16 paletteNum:4;
    u16 affineParam;
};

#define ST_OAM_OBJ_NORMAL 0
#define ST_OAM_OBJ_BLEND  1
#define ST_OAM_OBJ_WINDOW 2

#define ST_OAM_AFFINE_OFF    0
#define ST_OAM_AFFINE_NORMAL 1
#define ST_OAM_AFFINE_ERASE  2
#define ST_OAM_AFFINE_DOUBLE 3

#define ST_OAM_AFFINE_ON_MASK     1
#define ST_OAM_AFFINE_DOUBLE_MASK 2

#define ST_OAM_4BPP 0
#define ST_OAM_8BPP 1

#define ST_OAM_SQUARE      0
#define ST_OAM_H_RECTANGLE 1
#define ST_OAM_V_RECTANGLE 2

struct ObjAffineSrcData
{
    s16 xScale;
    s16 yScale;
    u16 rotation;
};

#endif // GUARD_GBA_TYPES_H