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48 lines
2.2 KiB
C++
48 lines
2.2 KiB
C++
/* Quicktex Texture Compression Library
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Copyright (C) 2021 Andrew Cassidy <drewcassidy@me.com>
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Partially derived from rgbcx.h written by Richard Geldreich <richgel99@gmail.com>
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and licenced under the public domain
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "BC1Block.h"
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#include <stdexcept>
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#include <algorithm>
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#include "../../util.h"
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namespace quicktex::s3tc {
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uint16_t BC1Block::GetColor0Raw() const { return Pack<uint8_t, uint16_t, 8, EndpointSize>(_color0); }
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uint16_t BC1Block::GetColor1Raw() const { return Pack<uint8_t, uint16_t, 8, EndpointSize>(_color1); }
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void BC1Block::SetColor0Raw(uint16_t c) { _color0 = Unpack<uint16_t, uint8_t, 8, EndpointSize>(c); }
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void BC1Block::SetColor1Raw(uint16_t c) { _color1 = Unpack<uint16_t, uint8_t, 8, EndpointSize>(c); }
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BC1Block::SelectorArray BC1Block::GetSelectors() const { return MapArray(_selectors, Unpack<uint8_t, uint8_t, SelectorBits, Width>); }
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void BC1Block::SetSelectors(const BC1Block::SelectorArray& unpacked) {
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for (unsigned y = 0; y < (unsigned)Height; y++) {
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if (std::any_of(unpacked[y].begin(), unpacked[y].end(), [](uint8_t i) { return i > SelectorMax; }))
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throw std::invalid_argument("Selector value out of bounds.");
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}
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_selectors = MapArray(unpacked, Pack<uint8_t, uint8_t, SelectorBits, Width>);
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}
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bool BC1Block::operator==(const BC1Block& Rhs) const { return _color0 == Rhs._color0 && _color1 == Rhs._color1 && _selectors == Rhs._selectors; }
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bool BC1Block::operator!=(const BC1Block& Rhs) const { return !(Rhs == *this); }
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} // namespace quicktex::s3tc
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