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Make stuff constexpr

This commit is contained in:
Jack Andersen 2019-07-19 18:23:46 -10:00
parent e61237209d
commit 8d356cb3da
1 changed files with 36 additions and 36 deletions
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72
include/jbus/Common.hpp
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@ -23,7 +23,7 @@ using u64 = uint64_t;
/* Type-sensitive byte swappers */ /* Type-sensitive byte swappers */
template <typename T> template <typename T>
static inline T bswap16(T val) { constexpr T bswap16(T val) {
#if __GNUC__ #if __GNUC__
return __builtin_bswap16(val); return __builtin_bswap16(val);
#elif _WIN32 #elif _WIN32
@ -34,7 +34,7 @@ static inline T bswap16(T val) {
} }
template <typename T> template <typename T>
static inline T bswap32(T val) { constexpr T bswap32(T val) {
#if __GNUC__ #if __GNUC__
return __builtin_bswap32(val); return __builtin_bswap32(val);
#elif _WIN32 #elif _WIN32
@ -47,7 +47,7 @@ static inline T bswap32(T val) {
} }
template <typename T> template <typename T>
static inline T bswap64(T val) { constexpr T bswap64(T val) {
#if __GNUC__ #if __GNUC__
return __builtin_bswap64(val); return __builtin_bswap64(val);
#elif _WIN32 #elif _WIN32
@ -61,18 +61,18 @@ static inline T bswap64(T val) {
} }
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
static inline int16_t SBig(int16_t val) { return bswap16(val); } constexpr int16_t SBig(int16_t val) { return bswap16(val); }
static inline uint16_t SBig(uint16_t val) { return bswap16(val); } constexpr uint16_t SBig(uint16_t val) { return bswap16(val); }
static inline int32_t SBig(int32_t val) { return bswap32(val); } constexpr int32_t SBig(int32_t val) { return bswap32(val); }
static inline uint32_t SBig(uint32_t val) { return bswap32(val); } constexpr uint32_t SBig(uint32_t val) { return bswap32(val); }
static inline int64_t SBig(int64_t val) { return bswap64(val); } constexpr int64_t SBig(int64_t val) { return bswap64(val); }
static inline uint64_t SBig(uint64_t val) { return bswap64(val); } constexpr uint64_t SBig(uint64_t val) { return bswap64(val); }
inline float SBig(float val) { constexpr float SBig(float val) {
union { float f; int32_t i; } uval1 = {val}; union { float f; int32_t i; } uval1 = {val};
union { int32_t i; float f; } uval2 = {bswap32(uval1.i)}; union { int32_t i; float f; } uval2 = {bswap32(uval1.i)};
return uval2.f; return uval2.f;
} }
inline double SBig(double val) { constexpr double SBig(double val) {
union { double f; int64_t i; } uval1 = {val}; union { double f; int64_t i; } uval1 = {val};
union { int64_t i; double f; } uval2 = {bswap64(uval1.i)}; union { int64_t i; double f; } uval2 = {bswap64(uval1.i)};
return uval2.f; return uval2.f;
@ -81,29 +81,29 @@ inline double SBig(double val) {
#define SBIG(q) (((q)&0x000000FF) << 24 | ((q)&0x0000FF00) << 8 | ((q)&0x00FF0000) >> 8 | ((q)&0xFF000000) >> 24) #define SBIG(q) (((q)&0x000000FF) << 24 | ((q)&0x0000FF00) << 8 | ((q)&0x00FF0000) >> 8 | ((q)&0xFF000000) >> 24)
#endif #endif
static inline int16_t SLittle(int16_t val) { return val; } constexpr int16_t SLittle(int16_t val) { return val; }
static inline uint16_t SLittle(uint16_t val) { return val; } constexpr uint16_t SLittle(uint16_t val) { return val; }
static inline int32_t SLittle(int32_t val) { return val; } constexpr int32_t SLittle(int32_t val) { return val; }
static inline uint32_t SLittle(uint32_t val) { return val; } constexpr uint32_t SLittle(uint32_t val) { return val; }
static inline int64_t SLittle(int64_t val) { return val; } constexpr int64_t SLittle(int64_t val) { return val; }
static inline uint64_t SLittle(uint64_t val) { return val; } constexpr uint64_t SLittle(uint64_t val) { return val; }
static inline float SLittle(float val) { return val; } constexpr float SLittle(float val) { return val; }
static inline double SLittle(double val) { return val; } constexpr double SLittle(double val) { return val; }
#ifndef SLITTLE #ifndef SLITTLE
#define SLITTLE(q) (q) #define SLITTLE(q) (q)
#endif #endif
#else #else
static inline int16_t SLittle(int16_t val) { return bswap16(val); } constexpr int16_t SLittle(int16_t val) { return bswap16(val); }
static inline uint16_t SLittle(uint16_t val) { return bswap16(val); } constexpr uint16_t SLittle(uint16_t val) { return bswap16(val); }
static inline int32_t SLittle(int32_t val) { return bswap32(val); } constexpr int32_t SLittle(int32_t val) { return bswap32(val); }
static inline uint32_t SLittle(uint32_t val) { return bswap32(val); } constexpr uint32_t SLittle(uint32_t val) { return bswap32(val); }
static inline int64_t SLittle(int64_t val) { return bswap64(val); } constexpr int64_t SLittle(int64_t val) { return bswap64(val); }
static inline uint64_t SLittle(uint64_t val) { return bswap64(val); } constexpr uint64_t SLittle(uint64_t val) { return bswap64(val); }
static inline float SLittle(float val) { constexpr float SLittle(float val) {
int32_t ival = bswap32(*((int32_t*)(&val))); int32_t ival = bswap32(*((int32_t*)(&val)));
return *((float*)(&ival)); return *((float*)(&ival));
} }
static inline double SLittle(double val) { constexpr double SLittle(double val) {
int64_t ival = bswap64(*((int64_t*)(&val))); int64_t ival = bswap64(*((int64_t*)(&val)));
return *((double*)(&ival)); return *((double*)(&ival));
} }
@ -111,14 +111,14 @@ static inline double SLittle(double val) {
#define SLITTLE(q) (((q)&0x000000FF) << 24 | ((q)&0x0000FF00) << 8 | ((q)&0x00FF0000) >> 8 | ((q)&0xFF000000) >> 24) #define SLITTLE(q) (((q)&0x000000FF) << 24 | ((q)&0x0000FF00) << 8 | ((q)&0x00FF0000) >> 8 | ((q)&0xFF000000) >> 24)
#endif #endif
static inline int16_t SBig(int16_t val) { return val; } constexpr int16_t SBig(int16_t val) { return val; }
static inline uint16_t SBig(uint16_t val) { return val; } constexpr uint16_t SBig(uint16_t val) { return val; }
static inline int32_t SBig(int32_t val) { return val; } constexpr int32_t SBig(int32_t val) { return val; }
static inline uint32_t SBig(uint32_t val) { return val; } constexpr uint32_t SBig(uint32_t val) { return val; }
static inline int64_t SBig(int64_t val) { return val; } constexpr int64_t SBig(int64_t val) { return val; }
static inline uint64_t SBig(uint64_t val) { return val; } constexpr uint64_t SBig(uint64_t val) { return val; }
static inline float SBig(float val) { return val; } constexpr float SBig(float val) { return val; }
static inline double SBig(double val) { return val; } constexpr double SBig(double val) { return val; }
#ifndef SBIG #ifndef SBIG
#define SBIG(q) (q) #define SBIG(q) (q)
#endif #endif
@ -162,7 +162,7 @@ void WaitGCTicks(u64 ticks);
/** @brief Obtain CPU ticks per second of Dolphin hardware (clock speed). /** @brief Obtain CPU ticks per second of Dolphin hardware (clock speed).
* @return 486Mhz - always. */ * @return 486Mhz - always. */
static constexpr u64 GetGCTicksPerSec() { return 486000000ull; } constexpr u64 GetGCTicksPerSec() { return 486000000ull; }
/** @brief Initialize platform specifics of JBus library */ /** @brief Initialize platform specifics of JBus library */
void Initialize(); void Initialize();