GetFormatFromFileName.cpp

# include <Siv3D.hpp>

ImageFormat GetFormatFromFileName(const FilePath& fileName)
{
	const String extension = FileSystem::Extension(fileName);

	if (extension == L"dds")
	{
		return ImageFormat::DDS;
	}
	else if (extension == L"png")
	{
		return ImageFormat::PNG;
	}
	else if (extension == L"jpg" || extension == L"jpeg")
	{
		return ImageFormat::JPEG;
	}
	else if (extension == L"jp2")
	{
		return ImageFormat::JPEG2000;
	}
	else if (extension == L"bmp")
	{
		return ImageFormat::BMP;
	}
	else if (extension == L"webp")
	{
		return ImageFormat::WebP;
	}
	else if (extension == L"gif")
	{
		return ImageFormat::GIF;
	}
	else if (extension == L"tif" || extension == L"tiff")
	{
		return ImageFormat::TIFF;
	}
	else if (extension == L"tga")
	{
		return ImageFormat::TGA;
	}
	else if (extension == L"ppm")
	{
		return ImageFormat::PPM;
	}

	return ImageFormat::Unknown;
}

void Main()
{
	if (GetFormatFromFileName(L"test.abc") == ImageFormat::Unknown)
	{
		Println(L"無効な拡張子");
	}

	WaitKey();
}