gtypes.h

windows平台下开发gtk程序所需要的库和头文件等

       (__extension__						\
	({ register guint16 __v, __x = ((guint16) (val));	\
	   if (__builtin_constant_p (__x))			\
	     __v = GUINT16_SWAP_LE_BE_CONSTANT (__x);		\
	   else							\
	     __asm__ __volatile__ ("shl %0 = %1, 48 ;;"		\
				   "mux1 %0 = %0, @rev ;;"	\
				    : "=r" (__v)		\
				    : "r" (__x));		\
	    __v; }))
#    define GUINT32_SWAP_LE_BE_IA64(val) \
       (__extension__						\
	 ({ register guint32 __v, __x = ((guint32) (val));	\
	    if (__builtin_constant_p (__x))			\
	      __v = GUINT32_SWAP_LE_BE_CONSTANT (__x);		\
	    else						\
	     __asm__ __volatile__ ("shl %0 = %1, 32 ;;"		\
				   "mux1 %0 = %0, @rev ;;"	\
				    : "=r" (__v)		\
				    : "r" (__x));		\
	    __v; }))
#    define GUINT64_SWAP_LE_BE_IA64(val) \
       (__extension__						\
	({ register guint64 __v, __x = ((guint64) (val));	\
	   if (__builtin_constant_p (__x))			\
	     __v = GUINT64_SWAP_LE_BE_CONSTANT (__x);		\
	   else							\
	     __asm__ __volatile__ ("mux1 %0 = %1, @rev ;;"	\
				   : "=r" (__v)			\
				   : "r" (__x));		\
	   __v; }))
#    define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_IA64 (val))
#    define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_IA64 (val))
#    define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_IA64 (val))
#  elif defined (__x86_64__)
#    define GUINT32_SWAP_LE_BE_X86_64(val) \
       (__extension__						\
	 ({ register guint32 __v, __x = ((guint32) (val));	\
	    if (__builtin_constant_p (__x))			\
	      __v = GUINT32_SWAP_LE_BE_CONSTANT (__x);		\
	    else						\
	     __asm__ ("bswapl %0"				\
		      : "=r" (__v)				\
		      : "0" (__x));				\
	    __v; }))
#    define GUINT64_SWAP_LE_BE_X86_64(val) \
       (__extension__						\
	({ register guint64 __v, __x = ((guint64) (val));	\
	   if (__builtin_constant_p (__x))			\
	     __v = GUINT64_SWAP_LE_BE_CONSTANT (__x);		\
	   else							\
	     __asm__ ("bswapq %0"				\
		      : "=r" (__v)				\
		      : "0" (__x));				\
	   __v; }))
     /* gcc seems to figure out optimal code for this on its own */
#    define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_CONSTANT (val))
#    define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_X86_64 (val))
#    define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_X86_64 (val))
#  else /* generic gcc */
#    define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_CONSTANT (val))
#    define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_CONSTANT (val))
#    define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_CONSTANT (val))
#  endif
#else /* generic */
#  define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_CONSTANT (val))
#  define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_CONSTANT (val))
#  define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_CONSTANT (val))
#endif /* generic */

#define GUINT16_SWAP_LE_PDP(val)	((guint16) (val))
#define GUINT16_SWAP_BE_PDP(val)	(GUINT16_SWAP_LE_BE (val))
#define GUINT32_SWAP_LE_PDP(val)	((guint32) ( \
    (((guint32) (val) & (guint32) 0x0000ffffU) << 16) | \
    (((guint32) (val) & (guint32) 0xffff0000U) >> 16)))
#define GUINT32_SWAP_BE_PDP(val)	((guint32) ( \
    (((guint32) (val) & (guint32) 0x00ff00ffU) << 8) | \
    (((guint32) (val) & (guint32) 0xff00ff00U) >> 8)))

/* The G*_TO_?E() macros are defined in glibconfig.h.
 * The transformation is symmetric, so the FROM just maps to the TO.
 */
#define GINT16_FROM_LE(val)	(GINT16_TO_LE (val))
#define GUINT16_FROM_LE(val)	(GUINT16_TO_LE (val))
#define GINT16_FROM_BE(val)	(GINT16_TO_BE (val))
#define GUINT16_FROM_BE(val)	(GUINT16_TO_BE (val))
#define GINT32_FROM_LE(val)	(GINT32_TO_LE (val))
#define GUINT32_FROM_LE(val)	(GUINT32_TO_LE (val))
#define GINT32_FROM_BE(val)	(GINT32_TO_BE (val))
#define GUINT32_FROM_BE(val)	(GUINT32_TO_BE (val))

#define GINT64_FROM_LE(val)	(GINT64_TO_LE (val))
#define GUINT64_FROM_LE(val)	(GUINT64_TO_LE (val))
#define GINT64_FROM_BE(val)	(GINT64_TO_BE (val))
#define GUINT64_FROM_BE(val)	(GUINT64_TO_BE (val))

#define GLONG_FROM_LE(val)	(GLONG_TO_LE (val))
#define GULONG_FROM_LE(val)	(GULONG_TO_LE (val))
#define GLONG_FROM_BE(val)	(GLONG_TO_BE (val))
#define GULONG_FROM_BE(val)	(GULONG_TO_BE (val))

#define GINT_FROM_LE(val)	(GINT_TO_LE (val))
#define GUINT_FROM_LE(val)	(GUINT_TO_LE (val))
#define GINT_FROM_BE(val)	(GINT_TO_BE (val))
#define GUINT_FROM_BE(val)	(GUINT_TO_BE (val))


/* Portable versions of host-network order stuff
 */
#define g_ntohl(val) (GUINT32_FROM_BE (val))
#define g_ntohs(val) (GUINT16_FROM_BE (val))
#define g_htonl(val) (GUINT32_TO_BE (val))
#define g_htons(val) (GUINT16_TO_BE (val))

/* IEEE Standard 754 Single Precision Storage Format (gfloat):
 *
 *        31 30           23 22            0
 * +--------+---------------+---------------+
 * | s 1bit | e[30:23] 8bit | f[22:0] 23bit |
 * +--------+---------------+---------------+
 * B0------------------->B1------->B2-->B3-->
 *
 * IEEE Standard 754 Double Precision Storage Format (gdouble):
 *
 *        63 62            52 51            32   31            0
 * +--------+----------------+----------------+ +---------------+
 * | s 1bit | e[62:52] 11bit | f[51:32] 20bit | | f[31:0] 32bit |
 * +--------+----------------+----------------+ +---------------+
 * B0--------------->B1---------->B2--->B3---->  B4->B5->B6->B7->
 */
/* subtract from biased_exponent to form base2 exponent (normal numbers) */
typedef union  _GDoubleIEEE754	GDoubleIEEE754;
typedef union  _GFloatIEEE754	GFloatIEEE754;
#define G_IEEE754_FLOAT_BIAS	(127)
#define G_IEEE754_DOUBLE_BIAS	(1023)
/* multiply with base2 exponent to get base10 exponent (normal numbers) */
#define G_LOG_2_BASE_10		(0.30102999566398119521)
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
union _GFloatIEEE754
{
  gfloat v_float;
  struct {
    guint mantissa : 23;
    guint biased_exponent : 8;
    guint sign : 1;
  } mpn;
};
union _GDoubleIEEE754
{
  gdouble v_double;
  struct {
    guint mantissa_low : 32;
    guint mantissa_high : 20;
    guint biased_exponent : 11;
    guint sign : 1;
  } mpn;
};
#elif G_BYTE_ORDER == G_BIG_ENDIAN
union _GFloatIEEE754
{
  gfloat v_float;
  struct {
    guint sign : 1;
    guint biased_exponent : 8;
    guint mantissa : 23;
  } mpn;
};
union _GDoubleIEEE754
{
  gdouble v_double;
  struct {
    guint sign : 1;
    guint biased_exponent : 11;
    guint mantissa_high : 20;
    guint mantissa_low : 32;
  } mpn;
};
#else /* !G_LITTLE_ENDIAN && !G_BIG_ENDIAN */
#error unknown ENDIAN type
#endif /* !G_LITTLE_ENDIAN && !G_BIG_ENDIAN */

typedef struct _GTimeVal                GTimeVal;

struct _GTimeVal
{
  glong tv_sec;
  glong tv_usec;
};

G_END_DECLS

/* We prefix variable declarations so they can
 * properly get exported in Windows DLLs.
 */
#ifndef GLIB_VAR
#  ifdef G_PLATFORM_WIN32
#    ifdef GLIB_STATIC_COMPILATION
#      define GLIB_VAR extern
#    else /* !GLIB_STATIC_COMPILATION */
#      ifdef GLIB_COMPILATION
#        ifdef DLL_EXPORT
#          define GLIB_VAR __declspec(dllexport)
#        else /* !DLL_EXPORT */
#          define GLIB_VAR extern
#        endif /* !DLL_EXPORT */
#      else /* !GLIB_COMPILATION */
#        define GLIB_VAR extern __declspec(dllimport)
#      endif /* !GLIB_COMPILATION */
#    endif /* !GLIB_STATIC_COMPILATION */
#  else /* !G_PLATFORM_WIN32 */
#    define GLIB_VAR extern
#  endif /* !G_PLATFORM_WIN32 */
#endif /* GLIB_VAR */

#endif /* __G_TYPES_H__ */