Exemplos de IReader::supportsLookahead em C++ (Cpp)

Exemplo n.º 1

Arquivo: CAudioFormat.cpp Projeto: Siv3D/OpenSiv3D

	Array<std::unique_ptr<IAudioFormat>>::const_iterator CAudioFormat::findFormat(const IReader& reader, const FilePath& pathHint) const
	{
		if (!reader.isOpened())
		{
			return m_audioFormats.end();
		}

		if (!reader.supportsLookahead())
		{
			return m_audioFormats.end();
		}

		uint8 header[16] = {};

		if (!reader.lookahead(header))
		{
			return m_audioFormats.end();
		}

		for (auto it = m_audioFormats.begin(); it != m_audioFormats.end(); ++it)
		{
			if ((*it)->isHeader(header))
			{
				return it;
			}
		}

		if (!pathHint.isEmpty())
		{
			const String extension = FileSystem::Extension(pathHint);

			for (auto it = m_audioFormats.begin(); it != m_audioFormats.end(); ++it)
			{
				if ((*it)->possibleExtexsions().includes(extension))
				{
					return it;
				}
			}
		}

		return m_audioFormats.end();
	}