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171	channel_num = 4;	171	channel_num = 4;
172	}	172	}
173	img = QImage(header.width, header.height, fmt);	173	img = QImage(header.width, header.height, fmt);
		174	if (img.isNull()) {
		175	qWarning() << "Failed to allocate image, invalid dimensions?" << QSize(header.width, header.height);
		176	return false;
		177	}
174	img.fill(qRgb(0,0,0));	178	img.fill(qRgb(0,0,0));
175		179
176	const quint32 pixel_count = header.height * header.width;	180	const quint32 pixel_count = header.height * header.width;
177		181
		182	// Verify this, as this is used to write into the memory of the QImage
		183	if (pixel_count > img.sizeInBytes() / sizeof(QRgb)) {
		184	qWarning() << "Invalid pixel count!" << pixel_count << "bytes available:" << img.sizeInBytes();
		185	return false;
		186	}
		187
178	QRgb image_data = reinterpret_cast<QRgb>(img.bits());	188	QRgb image_data = reinterpret_cast<QRgb>(img.bits());
179		189
180	if (!image_data) {	190	if (!image_data) {
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276		286
277	char head[4];	287	char head[4];
278	qint64 readBytes = device->read(head, sizeof(head));	288	qint64 readBytes = device->read(head, sizeof(head));
		289	if (readBytes < 0) {
		290	qWarning() << "Read failed" << device->errorString();
		291	return false;
		292	}
		293
279	if (readBytes != sizeof(head)) {	294	if (readBytes != sizeof(head)) {
280	if (device->isSequential()) {	295	if (device->isSequential()) {
281	while (readBytes > 0) {	296	while (readBytes > 0) {
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