util.h

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#ifndef _UTIL_H_
#define _UTIL_H_
 
#include <Runtime/platform.h>
 
#include <dolphin/gx.h>
#include <dolphin/mtx.h>
#include <sysdolphin/baselib/mtx.h>

void HSD_MulColor(GXColor* arg0, GXColor* arg1, GXColor* dest);
u32 HSD_GetNbBits(u32 arg0);
s32 HSD_Index2PosNrmMtx(u32 arg0);

extern Mtx HSD_identityMtx;
 
#define FLT_MIN 1.17549435e-38f
 
#define DEG_TO_RAD 0.017453292519943295
#define RAD_TO_DEG 57.29577951308232
 
static inline int vec_normalize_check(Vec3* src, Vec3* dst)
{
    if (!src || !dst) {
        return -1;
    }
    if (fabsf_bitwise(src->x) <= FLT_MIN && fabsf_bitwise(src->y) <= FLT_MIN &&
        fabsf_bitwise(src->z) <= FLT_MIN)
    {
        return -1;
    }
    PSVECNormalize(src, dst);
    return 0;
}
 
static inline f32 atan2f_check(s8 y, s8 x)
{
    if (fabs(x) == 0.0) {
        return y >= 0 ? 1.5707963267948966 : -1.5707963267948966;
    } else {
        return atan2f(y, x);
    }
}
 
#endif // _UTIL_H_