/// <summary>
/// Function to compress an image using block compression.
/// </summary>
/// <param name="imageFile">The file to compress.</param>
/// <param name="format">The block compression format to use.</param>
/// <param name="mipCount">The number of mip levels.</param>
/// <returns>The virtual file with the compressed data.</returns>
public IGorgonVirtualFile Compress(IGorgonVirtualFile imageFile, BufferFormat format, int mipCount)
{
string directory = Path.GetDirectoryName(imageFile.PhysicalFile.FullPath);
Process texConvProcess = null;
IGorgonVirtualFile encodedFile = null;
var info = new ProcessStartInfo
{
Arguments = $"-f {format.ToString().ToUpper()} -y -m {mipCount} -fl 12.0 -ft DDS -o \"{directory}\" -nologo \"{imageFile.PhysicalFile.FullPath}\"",
ErrorDialog = true,
FileName = _texConv.FullName,
WorkingDirectory = directory,
UseShellExecute = false,
#if DEBUG
CreateNoWindow = false,
#else
CreateNoWindow = true,
#endif
RedirectStandardError = true,
RedirectStandardOutput = true
};
try
{
texConvProcess = Process.Start(info);
if (texConvProcess == null)
{
return(null);
}
texConvProcess.WaitForExit();
string errorData = texConvProcess.StandardError.ReadToEnd();
if (errorData.StartsWith("Invalid value", StringComparison.OrdinalIgnoreCase))
{
errorData = errorData.Substring(0, errorData.IndexOf("\n", StringComparison.OrdinalIgnoreCase));
throw new GorgonException(GorgonResult.CannotWrite, Resources.GORIMG_ERR_CANNOT_COMPRESS, new IOException(errorData));
}
errorData = texConvProcess.StandardOutput.ReadToEnd();
if (errorData.Contains("FAILED"))
{
throw new GorgonException(GorgonResult.CannotWrite, Resources.GORIMG_ERR_CANNOT_COMPRESS, new IOException(errorData));
}
_writer.FileSystem.Refresh();
encodedFile = _writer.FileSystem.GetFile(imageFile.FullPath);
return(encodedFile);
}
finally
{
texConvProcess?.Dispose();
}
}