1 // Modified BeOS header. Just here to be able to compile and test BResources. 2 // To be replaced by the OpenBeOS version to be provided by the IK Team. 3 4 #ifndef _sk_byte_order_h_ 5 #define _sk_byte_order_h_ 6 7 8 #include <BeBuild.h> 9 #include <SupportDefs.h> 10 #include <TypeConstants.h> /* For convenience */ 11 12 #include <endian.h> 13 14 15 #ifdef __cplusplus 16 extern "C" { 17 #endif 18 19 /*----------------------------------------------------------------------*/ 20 /*------- Swap-direction constants, and swapping functions -------------*/ 21 22 typedef enum { 23 B_SWAP_HOST_TO_LENDIAN, 24 B_SWAP_HOST_TO_BENDIAN, 25 B_SWAP_LENDIAN_TO_HOST, 26 B_SWAP_BENDIAN_TO_HOST, 27 B_SWAP_ALWAYS 28 } swap_action; 29 30 extern status_t swap_data(type_code type, void *data, size_t length, 31 swap_action action); 32 33 extern bool is_type_swapped(type_code type); 34 35 36 /*-----------------------------------------------------------------------*/ 37 /*----- Private implementations -----------------------------------------*/ 38 extern double __swap_double(double arg); 39 extern float __swap_float(float arg); 40 extern uint64 __swap_int64(uint64 uarg); 41 extern uint32 __swap_int32(uint32 uarg); 42 extern uint16 __swap_int16(uint16 uarg); 43 /*-------------------------------------------------------------*/ 44 45 46 /*-------------------------------------------------------------*/ 47 /*--------- Host is Little --------------------------------------*/ 48 49 #if BYTE_ORDER == __LITTLE_ENDIAN 50 #define B_HOST_IS_LENDIAN 1 51 #define B_HOST_IS_BENDIAN 0 52 53 /*--------- Host Native -> Little --------------------*/ 54 55 #define B_HOST_TO_LENDIAN_DOUBLE(arg) (double)(arg) 56 #define B_HOST_TO_LENDIAN_FLOAT(arg) (float)(arg) 57 #define B_HOST_TO_LENDIAN_INT64(arg) (uint64)(arg) 58 #define B_HOST_TO_LENDIAN_INT32(arg) (uint32)(arg) 59 #define B_HOST_TO_LENDIAN_INT16(arg) (uint16)(arg) 60 61 /*--------- Host Native -> Big ------------------------*/ 62 #define B_HOST_TO_BENDIAN_DOUBLE(arg) __swap_double(arg) 63 #define B_HOST_TO_BENDIAN_FLOAT(arg) __swap_float(arg) 64 #define B_HOST_TO_BENDIAN_INT64(arg) __swap_int64(arg) 65 #define B_HOST_TO_BENDIAN_INT32(arg) __swap_int32(arg) 66 #define B_HOST_TO_BENDIAN_INT16(arg) __swap_int16(arg) 67 68 /*--------- Little -> Host Native ---------------------*/ 69 #define B_LENDIAN_TO_HOST_DOUBLE(arg) (double)(arg) 70 #define B_LENDIAN_TO_HOST_FLOAT(arg) (float)(arg) 71 #define B_LENDIAN_TO_HOST_INT64(arg) (uint64)(arg) 72 #define B_LENDIAN_TO_HOST_INT32(arg) (uint32)(arg) 73 #define B_LENDIAN_TO_HOST_INT16(arg) (uint16)(arg) 74 75 /*--------- Big -> Host Native ------------------------*/ 76 #define B_BENDIAN_TO_HOST_DOUBLE(arg) __swap_double(arg) 77 #define B_BENDIAN_TO_HOST_FLOAT(arg) __swap_float(arg) 78 #define B_BENDIAN_TO_HOST_INT64(arg) __swap_int64(arg) 79 #define B_BENDIAN_TO_HOST_INT32(arg) __swap_int32(arg) 80 #define B_BENDIAN_TO_HOST_INT16(arg) __swap_int16(arg) 81 82 #else /* __LITTLE_ENDIAN */ 83 84 85 /*-------------------------------------------------------------*/ 86 /*--------- Host is Big --------------------------------------*/ 87 88 #define B_HOST_IS_LENDIAN 0 89 #define B_HOST_IS_BENDIAN 1 90 91 /*--------- Host Native -> Little -------------------*/ 92 #define B_HOST_TO_LENDIAN_DOUBLE(arg) __swap_double(arg) 93 #define B_HOST_TO_LENDIAN_FLOAT(arg) __swap_float(arg) 94 #define B_HOST_TO_LENDIAN_INT64(arg) __swap_int64(arg) 95 #define B_HOST_TO_LENDIAN_INT32(arg) __swap_int32(arg) 96 #define B_HOST_TO_LENDIAN_INT16(arg) __swap_int16(arg) 97 98 /*--------- Host Native -> Big ------------------------*/ 99 #define B_HOST_TO_BENDIAN_DOUBLE(arg) (double)(arg) 100 #define B_HOST_TO_BENDIAN_FLOAT(arg) (float)(arg) 101 #define B_HOST_TO_BENDIAN_INT64(arg) (uint64)(arg) 102 #define B_HOST_TO_BENDIAN_INT32(arg) (uint32)(arg) 103 #define B_HOST_TO_BENDIAN_INT16(arg) (uint16)(arg) 104 105 /*--------- Little -> Host Native ----------------------*/ 106 #define B_LENDIAN_TO_HOST_DOUBLE(arg) __swap_double(arg) 107 #define B_LENDIAN_TO_HOST_FLOAT(arg) __swap_float(arg) 108 #define B_LENDIAN_TO_HOST_INT64(arg) __swap_int64(arg) 109 #define B_LENDIAN_TO_HOST_INT32(arg) __swap_int32(arg) 110 #define B_LENDIAN_TO_HOST_INT16(arg) __swap_int16(arg) 111 112 /*--------- Big -> Host Native -------------------------*/ 113 #define B_BENDIAN_TO_HOST_DOUBLE(arg) (double)(arg) 114 #define B_BENDIAN_TO_HOST_FLOAT(arg) (float)(arg) 115 #define B_BENDIAN_TO_HOST_INT64(arg) (uint64)(arg) 116 #define B_BENDIAN_TO_HOST_INT32(arg) (uint32)(arg) 117 #define B_BENDIAN_TO_HOST_INT16(arg) (uint16)(arg) 118 119 #endif /* __LITTLE_ENDIAN */ 120 121 122 /*-------------------------------------------------------------*/ 123 /*--------- Just-do-it macros ---------------------------------*/ 124 #define B_SWAP_DOUBLE(arg) __swap_double(arg) 125 #define B_SWAP_FLOAT(arg) __swap_float(arg) 126 #define B_SWAP_INT64(arg) __swap_int64(arg) 127 #define B_SWAP_INT32(arg) __swap_int32(arg) 128 #define B_SWAP_INT16(arg) __swap_int16(arg) 129 130 131 /*-------------------------------------------------------------*/ 132 /*---------Berkeley macros -----------------------------------*/ 133 #ifndef htonl /* avoid collision with <netinet/in.h> */ 134 #define htonl(x) B_HOST_TO_BENDIAN_INT32(x) 135 #define ntohl(x) B_BENDIAN_TO_HOST_INT32(x) 136 #define htons(x) B_HOST_TO_BENDIAN_INT16(x) 137 #define ntohs(x) B_BENDIAN_TO_HOST_INT16(x) 138 #endif 139 140 #ifdef __cplusplus 141 } 142 #endif /* __cplusplus */ 143 144 /*-------------------------------------------------------------*/ 145 /*-------------------------------------------------------------*/ 146 147 #endif // _sk_byte_order_h_ 148