#ifndef DEFINES_H
#define DEFINES_H


typedef uint16_t Uint16;
typedef uint32_t Uint32;


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


#if defined(__GNUC__) && defined(__i386__) && \
   !(__GNUC__ == 2 && __GNUC_MINOR__ <= 95 /* broken gcc version */)
static __inline__ Uint16 SDL_Swap16(Uint16 x)
{
	__asm__("xchgb %b0,%h0" : "=q" (x) :  "0" (x));
	return x;
}
#elif defined(__GNUC__) && defined(__x86_64__)
static __inline__ Uint16 SDL_Swap16(Uint16 x)
{
	__asm__("xchgb %b0,%h0" : "=Q" (x) :  "0" (x));
	return x;
}
#elif defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__))
static __inline__ Uint16 SDL_Swap16(Uint16 x)
{
	int result;

	__asm__("rlwimi %0,%2,8,16,23" : "=&r" (result) : "0" (x >> 8), "r" (x));
	return (Uint16)result;
}
#elif defined(__GNUC__) && (defined(__m68k__) && !defined(__mcoldfire__))
static __inline__ Uint16 SDL_Swap16(Uint16 x)
{
	__asm__("rorw #8,%0" : "=d" (x) :  "0" (x) : "cc");
	return x;
}
#else
static __inline__ Uint16 SDL_Swap16(Uint16 x) {
	return SDL_static_cast(Uint16, ((x<<8)|(x>>8)));
}
#endif

#if defined(__GNUC__) && defined(__i386__) && \
   !(__GNUC__ == 2 && __GNUC_MINOR__ <= 95 /* broken gcc version */)
static __inline__ Uint32 SDL_Swap32(Uint32 x)
{
	__asm__("bswap %0" : "=r" (x) : "0" (x));
	return x;
}
#elif defined(__GNUC__) && defined(__x86_64__)
static __inline__ Uint32 SDL_Swap32(Uint32 x)
{
	__asm__("bswapl %0" : "=r" (x) : "0" (x));
	return x;
}
#elif defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__))
static __inline__ Uint32 SDL_Swap32(Uint32 x)
{
	Uint32 result;

	__asm__("rlwimi %0,%2,24,16,23" : "=&r" (result) : "0" (x>>24), "r" (x));
	__asm__("rlwimi %0,%2,8,8,15"   : "=&r" (result) : "0" (result),    "r" (x));
	__asm__("rlwimi %0,%2,24,0,7"   : "=&r" (result) : "0" (result),    "r" (x));
	return result;
}
#elif defined(__GNUC__) && (defined(__m68k__) && !defined(__mcoldfire__))
static __inline__ Uint32 SDL_Swap32(Uint32 x)
{
	__asm__("rorw #8,%0\n\tswap %0\n\trorw #8,%0" : "=d" (x) :  "0" (x) : "cc");
	return x;
}
#else
static __inline__ Uint32 SDL_Swap32(Uint32 x) {
	return SDL_static_cast(Uint32, ((x<<24)|((x<<8)&0x00FF0000)|((x>>8)&0x0000FF00)|(x>>24)));
}
#endif

#ifdef SDL_HAS_64BIT_TYPE
#if defined(__GNUC__) && defined(__i386__) && \
   !(__GNUC__ == 2 && __GNUC_MINOR__ <= 95 /* broken gcc version */)
static __inline__ Uint64 SDL_Swap64(Uint64 x)
{
	union {
		struct { Uint32 a,b; } s;
		Uint64 u;
	} v;
	v.u = x;
	__asm__("bswapl %0 ; bswapl %1 ; xchgl %0,%1"
			: "=r" (v.s.a), "=r" (v.s.b)
			: "0" (v.s.a), "1" (v.s.b));
	return v.u;
}
#elif defined(__GNUC__) && defined(__x86_64__)
static __inline__ Uint64 SDL_Swap64(Uint64 x)
{
	__asm__("bswapq %0" : "=r" (x) : "0" (x));
	return x;
}
#else
static __inline__ Uint64 SDL_Swap64(Uint64 x)
{
	Uint32 hi, lo;

	/* Separate into high and low 32-bit values and swap them */
	lo = SDL_static_cast(Uint32, x & 0xFFFFFFFF);
	x >>= 32;
	hi = SDL_static_cast(Uint32, x & 0xFFFFFFFF);
	x = SDL_Swap32(lo);
	x <<= 32;
	x |= SDL_Swap32(hi);
	return (x);
}
#endif
#else
/* This is mainly to keep compilers from complaining in SDL code.
 * If there is no real 64-bit datatype, then compilers will complain about
 * the fake 64-bit datatype that SDL provides when it compiles user code.
 */
#define SDL_Swap64(X)	(X)
#endif /* SDL_HAS_64BIT_TYPE */
/*@}*/

#if SDL_BYTEORDER == SDL_LIL_ENDIAN
#define SDL_SwapLE16(X)	(X)
#define SDL_SwapLE32(X)	(X)
#define SDL_SwapLE64(X)	(X)
#define SDL_SwapBE16(X)	SDL_Swap16(X)
#define SDL_SwapBE32(X)	SDL_Swap32(X)
#define SDL_SwapBE64(X)	SDL_Swap64(X)
#else
#define SDL_SwapLE16(X)	SDL_Swap16(X)
#define SDL_SwapLE32(X)	SDL_Swap32(X)
#define SDL_SwapLE64(X)	SDL_Swap64(X)
#define SDL_SwapBE16(X)	(X)
#define SDL_SwapBE32(X)	(X)
#define SDL_SwapBE64(X)	(X)
#endif


#endif // DEFINES_H