wudd/source/utils/utils.h

#pragma once

#include <malloc.h>
#include <memory>
#include <string>

#define LIMIT(x, min, max)                                   \
    ({                                                       \
        typeof(x) _x     = x;                                \
        typeof(min) _min = min;                              \
        typeof(max) _max = max;                              \
        (((_x) < (_min)) ? (_min) : ((_x) > (_max)) ? (_max) \
                                                    : (_x)); \
    })

#define DegToRad(a)           ((a) *0.01745329252f)
#define RadToDeg(a)           ((a) *57.29577951f)

#define ALIGN4(x)             (((x) + 3) & ~3)
#define ALIGN32(x)            (((x) + 31) & ~31)

// those work only in powers of 2
#define ROUNDDOWN(val, align) ((val) & ~(align - 1))
#define ROUNDUP(val, align)   ROUNDDOWN(((val) + (align - 1)), align)


#define le16(i)               ((((uint16_t) ((i) &0xFF)) << 8) | ((uint16_t) (((i) &0xFF00) >> 8)))
#define le32(i)               ((((uint32_t) le16((i) &0xFFFF)) << 16) | ((uint32_t) le16(((i) &0xFFFF0000) >> 16)))
#define le64(i)               ((((uint64_t) le32((i) &0xFFFFFFFFLL)) << 32) | ((uint64_t) le32(((i) &0xFFFFFFFF00000000LL) >> 32)))

unsigned int swap_uint32(unsigned int val);

unsigned long long swap_uint64(unsigned long long val);

void calculateHash256(unsigned char *data, unsigned int length, unsigned char *hashOut);

template<class T, class... Args>
std::unique_ptr<T> make_unique_nothrow(Args &&...args) noexcept(noexcept(T(std::forward<Args>(args)...))) {
    return std::unique_ptr<T>(new (std::nothrow) T(std::forward<Args>(args)...));
}

template<typename T>
inline typename std::unique_ptr<T> make_unique_nothrow(size_t num) noexcept {
    return std::unique_ptr<T>(new (std::nothrow) std::remove_extent_t<T>[num]());
}

template<class T, class... Args>
std::shared_ptr<T> make_shared_nothrow(Args &&...args) noexcept(noexcept(T(std::forward<Args>(args)...))) {
    return std::shared_ptr<T>(new (std::nothrow) T(std::forward<Args>(args)...));
}

class Utils {
public:
    static void dumpHex(const void *data, size_t size);

    static std::string calculateSHA1(const char *buffer, size_t size);

    static std::string hashFile(const std::string &path);
};