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/**
* memory-private.h
*
* Copyright (c) 2013
* libchewing Core Team. See ChangeLog for details.
*
* See the file "COPYING" for information on usage and redistribution
* of this file.
*/
/* *INDENT-OFF* */
#ifndef _CHEWING_MEMORY_PRIVATE_H
#define _CHEWING_MEMORY_PRIVATE_H
/* *INDENT-ON* */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef HAVE_INTTYPES_H
# include <inttypes.h>
#elif defined HAVE_STDINT_H
# include <stdint.h>
#endif
#ifdef _MSC_VER
# define inline __inline
#endif
static inline uint16_t GetUint16(const void *ptr)
{
uint16_t val;
const unsigned char *uptr = ptr;
val = (uptr[0] << 0) | (uptr[1] << 8);
return val;
}
static inline void PutUint16(uint16_t val, void *ptr)
{
unsigned char *uptr = (unsigned char *) ptr;
uptr[0] = (val >> 0) & 0xff;
uptr[1] = (val >> 8) & 0xff;
}
static inline uint16_t GetUint16PreservedEndian(const void *ptr)
{
uint16_t val;
const unsigned char *uptr = ptr;
#if WORDS_BIGENDIAN
val = (uptr[0] << 8) | (uptr[1] << 0);
#else
val = (uptr[0] << 0) | (uptr[1] << 8);
#endif
return val;
}
static inline void PutUint16PreservedEndian(uint16_t val, void *ptr)
{
unsigned char *uptr = (unsigned char *) ptr;
#if WORDS_BIGENDIAN
uptr[0] = (val >> 8) & 0xff;
uptr[1] = (val >> 0) & 0xff;
#else
uptr[0] = (val >> 0) & 0xff;
uptr[1] = (val >> 8) & 0xff;
#endif
}
/*
* This function is specially used in reading fields of TreeType which are
* compressed into 3 bytes, so it has a special name of 24.
*/
static inline uint32_t GetUint24(const void *ptr)
{
uint32_t val;
const unsigned char *uptr = ptr;
val = (uptr[0] << 0) | (uptr[1] << 8) | (uptr[2] << 16);
return val;
}
/*
* This function is specially used in writing fields of TreeType which are
* compressed into 3 bytes, so it has a special name of 24.
*/
static inline void PutUint24(uint32_t val, void *ptr)
{
unsigned char *uptr = (unsigned char *) ptr;
uptr[0] = (val >> 0) & 0xff;
uptr[1] = (val >> 8) & 0xff;
uptr[2] = (val >> 16) & 0xff;
}
static inline int GetInt32PreservedEndian(const void *ptr)
{
int val;
const unsigned char *uptr = ptr;
#if WORDS_BIGENDIAN
val = (uptr[0] << 24) | (uptr[1] << 16) | (uptr[2] << 8) | (uptr[3] << 0);
#else
val = (uptr[0] << 0) | (uptr[1] << 8) | (uptr[2] << 16) | (uptr[3] << 24);
#endif
return val;
}
static inline void PutInt32PreservedEndian(int val, void *ptr)
{
unsigned char *uptr = (unsigned char *) ptr;
#if WORDS_BIGENDIAN
uptr[0] = (val >> 24) & 0xff;
uptr[1] = (val >> 16) & 0xff;
uptr[2] = (val >> 8) & 0xff;
uptr[3] = (val >> 0) & 0xff;
#else
uptr[0] = (val >> 0) & 0xff;
uptr[1] = (val >> 8) & 0xff;
uptr[2] = (val >> 16) & 0xff;
uptr[3] = (val >> 24) & 0xff;
#endif
}
/* *INDENT-OFF* */
#endif
/* *INDENT-ON* */
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