qssgrenderinstancetable.cpp

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// Copyright (C) 2022 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

// Qt-Security score:significant reason:default

#include "qssgrenderinstancetable_p.h"

QMatrix4x4 QSSGRenderInstanceTable::getTransform(int index) const

    Q_ASSERT(index < instanceCount);

    // NOTE: table size can be bigger than instanceCount due to QQuick3DInstancing::instanceCountOverride

    Q_ASSERT(table.size() >= instanceStride * (index + 1));

    auto *entry = reinterpret_cast<const QSSGRenderInstanceTableEntry*>(table.constData() + index * instanceStride);

    QMatrix4x4 res;

    res.setRow(0, entry->row0);

    res.setRow(1, entry->row1);

    res.setRow(2, entry->row2);

    res.setRow(3, { 0, 0, 0, 1 });

    return res;