78 lines
1.7 KiB
C++
78 lines
1.7 KiB
C++
/*
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* This file is part of libgim.
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*
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* libgim is free software: you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* libgim is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with libgim. If not, see <http://www.gnu.org/licenses/>.
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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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using util::fourcc;
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using std::ostream;
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static_assert (sizeof(fourcc) == 4, "fourcc must be a 4 byte POD");
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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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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] = (uint8_t)data[0];
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lhs.data[1] = (uint8_t)data[1];
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lhs.data[2] = (uint8_t)data[2];
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lhs.data[3] = (uint8_t)data[3];
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return lhs;
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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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fourcc::operator uint32_t (void) const {
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return (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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ostream&
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operator<< (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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