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Added float/double swap helpers.

This commit is contained in:
Rick Gibbed 2013-05-26 22:39:39 -07:00
parent 6e8828f843
commit 9eadffe461
1 changed files with 25 additions and 0 deletions
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25
src/xenia/byte_order.h
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@ -47,6 +47,31 @@
#endif
#if XE_CPU(BIGENDIAN)
#define XESWAPF32BE(p) (p)
#define XESWAPF64BE(p) (p)
XEFORCEINLINE float XESWAPF32LE(float value) {
uint32_t dummy = XESWAP32LE(*reinterpret_cast<uint32_t *>(&value));
return *reinterpret_cast<float *>(&dummy);
}
XEFORCEINLINE double XESWAPF64LE(double value) {
uint64_t dummy = XESWAP64LE(*reinterpret_cast<uint64_t *>(&value));
return *reinterpret_cast<double *>(&dummy);
}
#else
XEFORCEINLINE float XESWAPF32BE(float value) {
uint32_t dummy = XESWAP32BE(*reinterpret_cast<uint32_t *>(&value));
return *reinterpret_cast<float *>(&dummy);
}
XEFORCEINLINE double XESWAPF64BE(double value) {
uint64_t dummy = XESWAP64BE(*reinterpret_cast<uint64_t *>(&value));
return *reinterpret_cast<double *>(&dummy);
}
#define XESWAPF32LE(p) (p)
#define XESWAPF64LE(p) (p)
#endif
#define XEGETINT8BE(p) ( (int8_t)(*(p)))
#define XEGETUINT8BE(p) ( (uint8_t)(*(p)))
#define XEGETINT16BE(p) ( (int16_t)XESWAP16BE(*(uint16_t*)(p)))