67 lines
1.4 KiB
C
67 lines
1.4 KiB
C
/*
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** global-ibo.h
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**
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** This file is part of mkxp.
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**
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** Copyright (C) 2013 Jonas Kulla <Nyocurio@gmail.com>
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**
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** mkxp is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 2 of the License, or
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** (at your option) any later version.
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**
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** mkxp 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 General Public License for more 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 mkxp. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GLOBALIBO_H
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#define GLOBALIBO_H
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#include <gl-util.h>
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#include <QVector>
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struct GlobalIBO
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{
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IBO::ID ibo;
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QVector<uint32_t> buffer;
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GlobalIBO()
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{
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ibo = IBO::gen();
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}
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~GlobalIBO()
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{
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IBO::del(ibo);
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}
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void ensureSize(int quadCount)
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{
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if (buffer.size() >= quadCount*6)
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return;
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int startInd = buffer.size() / 6;
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buffer.reserve(quadCount*6);
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for (int i = startInd; i < quadCount; ++i)
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{
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static const int indTemp[] = { 0, 1, 2, 2, 3, 0 };
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for (int j = 0; j < 6; ++j)
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buffer.append(i * 4 + indTemp[j]);
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}
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IBO::bind(ibo);
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IBO::uploadData(buffer.count() * sizeof(int),
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buffer.constData());
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IBO::unbind();
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}
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};
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#endif // GLOBALIBO_H
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