types.h

代码有点长,需细心阅读,仅供影音视听类产品的开发人员参考

#ifndef __TYPES_H
#define __TYPES_H

#ifdef __BORLANDC__

#define __attribute__(x)
#define __alignof__(x) 		sizeof(x)


typedef char INT8;
typedef int INT16;
typedef long INT32;
typedef struct
{
	INT32   a;
	INT32   b;
}
INT64;

// this INT64 shouldn't be used, invalid under BC

typedef unsigned char UINT8;
typedef unsigned int UINT16;
typedef unsigned long UINT32;
typedef struct
{
	UINT32  a;
	UINT32  b;
}
UINT64;

// this UINT64 shouldn't be used, invalid under BC

typedef unsigned char BYTE;
typedef unsigned short SHORT;
typedef unsigned long WORD;

#else	// for EMU and SIM

typedef unsigned char BYTE;
typedef unsigned short WORD;
typedef unsigned int LONG;

typedef unsigned long long UINT64;
typedef unsigned int UINT32;
typedef unsigned short UINT16;
typedef unsigned char UINT8;

typedef long long INT64;
typedef int INT32;
typedef short INT16;
typedef signed char INT8;

#endif // end of EMU and SIM


/* bcd */
#define	getBCD(p)	(((((UINT8 *)(p))[0])>>4)*10 + ((((UINT8 *)(p))[0])&0x0f))


/* unaligned accessing */
#define	getUINT16_bi(p)	((UINT16) (((UINT8 *)(p))[1] | ((UINT16)((UINT8 *)(p))[0]<<8)))
#define	getUINT16_li(p)	((UINT16) (((UINT8 *)(p))[0] | ((UINT16)((UINT8 *)(p))[1]<<8)))

#define	getUINT24_bi(p)	((UINT32) (((UINT8 *)(p))[2] | ((UINT32)((UINT8 *)(p))[1]<<8) | ((UINT32)((UINT8 *)(p))[0]<<16)))

#define	getUINT32_bi(p)	((UINT32) (((UINT8 *)(p))[3] | ((UINT32)((UINT8 *)(p))[2]<<8) | ((UINT32)((UINT8 *)(p))[1]<<16) | ((UINT32)((UINT8 *)(p))[0]<<24)))
#define	getUINT32_li(p)	((UINT32) (((UINT8 *)(p))[0] | ((UINT32)((UINT8 *)(p))[1]<<8) | ((UINT32)((UINT8 *)(p))[2]<<16) | ((UINT32)((UINT8 *)(p))[3]<<24)))

#define	getUINT64_bi(p)	((((UINT64) getUINT32_bi(p)) << 32) | ((UINT64) getUINT32_bi(p+4)))

//#define BIG_ENDIAN

/* endian-less taste */
#ifdef	BIG_ENDIAN
#define	getUINT16(p)	getUINT16_bi((BYTE *)p)
#define	getUINT32(p)	getUINT32_bi((BYTE *)p)
#else
#define	getUINT16(p)	getUINT16_li((BYTE *)p)
#define	getUINT32(p)	getUINT32_li((BYTE *)p)
#endif

#define	getBiUINT32(p)	getUINT32_li((BYTE *)p)
#define	getBiUINT16(p)	getUINT16_li((BYTE *)p)


#ifndef  TRUE
#define  TRUE  1
#endif

#ifndef  FALSE
#define  FALSE 0
#endif


#define IS_B7_ONE(p)			( ((p) & 0x80) == 0x80 )
#define IS_B7_ZERO(p)		( ((p) & 0x80) == 0x00 )

#define GET_LOW_NIBBLE(p)	((p) & 0x0F)

#ifndef NULL
#define NULL    ((void *)0)
#endif


#endif/*__TYPES_H*/