#ifndef TYPES_H
#define TYPES_H

typedef signed char s8;
typedef signed short s16;
typedef signed long s32;
typedef signed long long s64;
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned long u32;
typedef unsigned long size_t;
typedef unsigned long long u64;
typedef unsigned int uint;

typedef volatile u8 vu8;
typedef volatile u16 vu16;
typedef volatile u32 vu32;
typedef volatile u64 vu64;
typedef volatile s8 vs8;
typedef volatile s16 vs16;
typedef volatile s32 vs32;
typedef volatile s64 vs64;

typedef float f32;
typedef double f64;
typedef volatile f32 vf32;
typedef volatile f64 vf64;

typedef int BOOL;
typedef unsigned int uintptr_t; // Manually added

// Pointer to unknown, to be determined at a later date.
typedef void* unkptr;
typedef u32 unknown;

#define TRUE 1
#define FALSE 0
#define NULL ((void*)0)
#define nullptr 0

#define AT_ADDRESS(x) : (x)

#define ALIGN_PREV(u, align) (u & (~(align-1)))
#define ALIGN_NEXT(u, align) ((u + (align-1)) & (~(align-1)))

#ifndef ATTRIBUTE_ALIGN
#if defined(__MWERKS__) || defined(__GNUC__)
#define ATTRIBUTE_ALIGN(num) __attribute__((aligned(num)))
#elif defined(_MSC_VER)
#define ATTRIBUTE_ALIGN(num)
#else
#error unknown compiler
#endif
#endif

#define MAX(a, b) (((a) > (b)) ? (a) : (b))
#define MIN(a, b) (((a) < (b)) ? (a) : (b))

/* ARGB8 color format (32 bits) to RGB5A3 color format (16 bits) */
#define ARGB8_to_RGB5A3(argb8) \
  ((u16)(((argb8) & 0xFF000000) >= 0xE0000000 ? \
   /* Fully opaque, 5 bits per color channel */ (0x8000 | ((((argb8) >> 16) & 0xF8) << 7) | ((((argb8) >> 8) & 0xF8) << 2) | (((argb8) & 0xFF) >> 3)) : \
   /* 3 bits of transparency, 4 bits per color channel */ (((((argb8) >> 24) & 0xE0) << 7) | ((((argb8) >> 16) & 0xF0) << 4) | (((argb8) >> 8) & 0xF0) | (((argb8) & 0xF0) >> 4))))

#define GPACK_RGB5A3(r, g, b, a) ARGB8_to_RGB5A3((((a) & 0xFF) << 24) | (((r) & 0xFF) << 16) | (((g) & 0xFF) << 8) | ((b) & 0xFF))

#endif