71 lines
1.8 KiB
C++
71 lines
1.8 KiB
C++
/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* Copyright 2011 Danny Robson <danny@nerdcruft.net>
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*/
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#include "fourcc.hpp"
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#include <ostream>
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using cruft::fourcc;
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static_assert (sizeof(fourcc) == 4, "fourcc must be a 4 byte POD");
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///////////////////////////////////////////////////////////////////////////////
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fourcc
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fourcc::from_chars (uint8_t a, uint8_t b, uint8_t c, uint8_t d) {
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fourcc lhs;
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lhs.data[0] = a;
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lhs.data[1] = b;
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lhs.data[2] = c;
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lhs.data[3] = d;
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return lhs;
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}
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//-----------------------------------------------------------------------------
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fourcc
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fourcc::from_string (const char data[4]) {
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fourcc lhs;
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lhs.data[0] = static_cast<uint8_t> (data[0]);
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lhs.data[1] = static_cast<uint8_t> (data[1]);
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lhs.data[2] = static_cast<uint8_t> (data[2]);
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lhs.data[3] = static_cast<uint8_t> (data[3]);
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return lhs;
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}
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///////////////////////////////////////////////////////////////////////////////
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bool
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fourcc::operator== (const char rhs[4]) const {
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return data[0] == rhs[0] &&
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data[1] == rhs[1] &&
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data[2] == rhs[2] &&
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data[3] == rhs[3];
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}
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///////////////////////////////////////////////////////////////////////////////
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fourcc::operator uint32_t (void) const {
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return static_cast<uint32_t> (data[0] << 24U |
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data[1] << 16U |
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data[2] << 8U |
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data[3]);
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}
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///////////////////////////////////////////////////////////////////////////////
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std::ostream&
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cruft::operator<< (std::ostream &os, fourcc f) {
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os << f.data[0] << f.data[1] << f.data[2] << f.data[3];
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return os;
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}
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