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++ // Copyright (C) 2021 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
++
++ #include <QtQuick3D/private/qquick3dinstancing_p.h>
++
++ extern void qt_writeInstanceTable(QIODevice *out, QQuick3DInstancing &instanceTable);
++
++ int main(int argc, char **argv)
++ {
++ QQuick3DFileInstancing instanceTable;
++ if (argc < 2 || argc > 3) {
++ fprintf(stderr, "Usage: %s INFILE [OUTFILE]\n", argv[0]);
++ return -1;
++ }
++ QString inFilename = QString::fromLocal8Bit(argv[1]);
++ if (!instanceTable.loadFromXmlFile(inFilename)) {
++ fprintf(stderr, "Could not read instance table %s\n", argv[1]);
++ return -2;
++ }
++
++ QString outFilename = argc > 2 ? QString::fromLocal8Bit(argv[2]) : inFilename + QStringLiteral(".bin");
++ QFile outFile(outFilename);
++ if (!outFile.open(QFile::WriteOnly)) {
++ fprintf(stderr, "Could not open %s for writing.\n", qPrintable(outFilename));
++ return -2;
++ }
++
++ int instanceCount = instanceTable.writeToBinaryFile(&outFile);
++
++ outFile.close();
++
++ if (instanceCount < 0) {
++ fprintf(stderr, "Could not write instance table.\n");
++ return -3;
++ }
++
++ fprintf(stderr, "Wrote %d instances to %s.\n", instanceCount, qPrintable(outFilename));
++
++ return 0;
++ }