fourcc.h

Go to the documentation of this file.

 
#pragma once
#include <cstdint>
#include <string>
#include <promeki/core/namespace.h>
#include <promeki/core/list.h>
 
PROMEKI_NAMESPACE_BEGIN
 
class FourCC {
        public:
                constexpr FourCC(char c0, char c1, char c2, char c3)
                        : d((static_cast<uint32_t>(c0) << 24) |
                            (static_cast<uint32_t>(c1) << 16) |
                            (static_cast<uint32_t>(c2) << 8)  |
                             static_cast<uint32_t>(c3)) {}
 
                template <size_t N> constexpr FourCC(const char (&str)[N])
                        : FourCC(str[0], str[1], str[2], str[3]) {
                                static_assert(N == 5, "FourCC string must have exactly 4 characters");
                        }
 
                constexpr uint32_t value() const { return d; }
 
                friend constexpr bool operator==(const FourCC &a, const FourCC &b) {
                        return a.d == b.d;
                }
 
                friend constexpr bool operator!=(const FourCC &a, const FourCC &b) {
                        return a.d != b.d;
                }
 
                friend constexpr bool operator<(const FourCC &a, const FourCC &b) {
                        return a.d < b.d;
                }
 
                friend constexpr bool operator>(const FourCC &a, const FourCC &b) {
                        return a.d > b.d;
                }
 
                friend constexpr bool operator<=(const FourCC &a, const FourCC &b) {
                        return a.d <= b.d;
                }
 
                friend constexpr bool operator>=(const FourCC &a, const FourCC &b) {
                        return a.d >= b.d;
                }
 
        private:
                uint32_t d; 
};
 
using FourCCList = List<FourCC>;
 
PROMEKI_NAMESPACE_END