145 lines
5.1 KiB
C
145 lines
5.1 KiB
C
// Modified BeOS header. Just here to be able to compile and test BResources.
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// To be replaced by the OpenBeOS version to be provided by the IK Team.
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#ifndef _sk_byte_order_h_
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#define _sk_byte_order_h_
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#include <BeBuild.h>
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#include <endian.h>
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#include <SupportDefs.h>
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#include <TypeConstants.h> /* For convenience */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*----------------------------------------------------------------------*/
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/*------- Swap-direction constants, and swapping functions -------------*/
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typedef enum {
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B_SWAP_HOST_TO_LENDIAN,
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B_SWAP_HOST_TO_BENDIAN,
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B_SWAP_LENDIAN_TO_HOST,
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B_SWAP_BENDIAN_TO_HOST,
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B_SWAP_ALWAYS
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} swap_action;
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extern status_t swap_data(type_code type, void *data, size_t length,
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swap_action action);
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extern bool is_type_swapped(type_code type);
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/*-----------------------------------------------------------------------*/
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/*----- Private implementations -----------------------------------------*/
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extern double __swap_double(double arg);
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extern float __swap_float(float arg);
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extern uint64 __swap_int64(uint64 uarg);
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extern uint32 __swap_int32(uint32 uarg);
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extern uint16 __swap_int16(uint16 uarg);
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/*-------------------------------------------------------------*/
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/*-------------------------------------------------------------*/
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/*--------- Host is Little --------------------------------------*/
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#if BYTE_ORDER == __LITTLE_ENDIAN
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#define B_HOST_IS_LENDIAN 1
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#define B_HOST_IS_BENDIAN 0
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/*--------- Host Native -> Little --------------------*/
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#define B_HOST_TO_LENDIAN_DOUBLE(arg) (double)(arg)
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#define B_HOST_TO_LENDIAN_FLOAT(arg) (float)(arg)
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#define B_HOST_TO_LENDIAN_INT64(arg) (uint64)(arg)
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#define B_HOST_TO_LENDIAN_INT32(arg) (uint32)(arg)
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#define B_HOST_TO_LENDIAN_INT16(arg) (uint16)(arg)
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/*--------- Host Native -> Big ------------------------*/
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#define B_HOST_TO_BENDIAN_DOUBLE(arg) __swap_double(arg)
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#define B_HOST_TO_BENDIAN_FLOAT(arg) __swap_float(arg)
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#define B_HOST_TO_BENDIAN_INT64(arg) __swap_int64(arg)
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#define B_HOST_TO_BENDIAN_INT32(arg) __swap_int32(arg)
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#define B_HOST_TO_BENDIAN_INT16(arg) __swap_int16(arg)
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/*--------- Little -> Host Native ---------------------*/
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#define B_LENDIAN_TO_HOST_DOUBLE(arg) (double)(arg)
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#define B_LENDIAN_TO_HOST_FLOAT(arg) (float)(arg)
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#define B_LENDIAN_TO_HOST_INT64(arg) (uint64)(arg)
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#define B_LENDIAN_TO_HOST_INT32(arg) (uint32)(arg)
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#define B_LENDIAN_TO_HOST_INT16(arg) (uint16)(arg)
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/*--------- Big -> Host Native ------------------------*/
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#define B_BENDIAN_TO_HOST_DOUBLE(arg) __swap_double(arg)
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#define B_BENDIAN_TO_HOST_FLOAT(arg) __swap_float(arg)
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#define B_BENDIAN_TO_HOST_INT64(arg) __swap_int64(arg)
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#define B_BENDIAN_TO_HOST_INT32(arg) __swap_int32(arg)
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#define B_BENDIAN_TO_HOST_INT16(arg) __swap_int16(arg)
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#else /* __LITTLE_ENDIAN */
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/*-------------------------------------------------------------*/
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/*--------- Host is Big --------------------------------------*/
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#define B_HOST_IS_LENDIAN 0
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#define B_HOST_IS_BENDIAN 1
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/*--------- Host Native -> Little -------------------*/
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#define B_HOST_TO_LENDIAN_DOUBLE(arg) __swap_double(arg)
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#define B_HOST_TO_LENDIAN_FLOAT(arg) __swap_float(arg)
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#define B_HOST_TO_LENDIAN_INT64(arg) __swap_int64(arg)
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#define B_HOST_TO_LENDIAN_INT32(arg) __swap_int32(arg)
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#define B_HOST_TO_LENDIAN_INT16(arg) __swap_int16(arg)
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/*--------- Host Native -> Big ------------------------*/
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#define B_HOST_TO_BENDIAN_DOUBLE(arg) (double)(arg)
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#define B_HOST_TO_BENDIAN_FLOAT(arg) (float)(arg)
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#define B_HOST_TO_BENDIAN_INT64(arg) (uint64)(arg)
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#define B_HOST_TO_BENDIAN_INT32(arg) (uint32)(arg)
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#define B_HOST_TO_BENDIAN_INT16(arg) (uint16)(arg)
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/*--------- Little -> Host Native ----------------------*/
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#define B_LENDIAN_TO_HOST_DOUBLE(arg) __swap_double(arg)
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#define B_LENDIAN_TO_HOST_FLOAT(arg) __swap_float(arg)
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#define B_LENDIAN_TO_HOST_INT64(arg) __swap_int64(arg)
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#define B_LENDIAN_TO_HOST_INT32(arg) __swap_int32(arg)
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#define B_LENDIAN_TO_HOST_INT16(arg) __swap_int16(arg)
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/*--------- Big -> Host Native -------------------------*/
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#define B_BENDIAN_TO_HOST_DOUBLE(arg) (double)(arg)
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#define B_BENDIAN_TO_HOST_FLOAT(arg) (float)(arg)
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#define B_BENDIAN_TO_HOST_INT64(arg) (uint64)(arg)
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#define B_BENDIAN_TO_HOST_INT32(arg) (uint32)(arg)
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#define B_BENDIAN_TO_HOST_INT16(arg) (uint16)(arg)
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#endif /* __LITTLE_ENDIAN */
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/*-------------------------------------------------------------*/
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/*--------- Just-do-it macros ---------------------------------*/
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#define B_SWAP_DOUBLE(arg) __swap_double(arg)
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#define B_SWAP_FLOAT(arg) __swap_float(arg)
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#define B_SWAP_INT64(arg) __swap_int64(arg)
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#define B_SWAP_INT32(arg) __swap_int32(arg)
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#define B_SWAP_INT16(arg) __swap_int16(arg)
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/*-------------------------------------------------------------*/
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/*---------Berkeley macros -----------------------------------*/
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#ifndef htonl /* avoid collision with <netinet/in.h> */
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#define htonl(x) B_HOST_TO_BENDIAN_INT32(x)
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#define ntohl(x) B_BENDIAN_TO_HOST_INT32(x)
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#define htons(x) B_HOST_TO_BENDIAN_INT16(x)
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#define ntohs(x) B_BENDIAN_TO_HOST_INT16(x)
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#endif
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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/*-------------------------------------------------------------*/
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/*-------------------------------------------------------------*/
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#endif // _sk_byte_order_h_
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