public async Task WriteFile(ImageFileDef image, string inFile)
{
if (!File.Exists(inFile))
{
throw new Exception($"{inFile} does not exist");
}
var inBytes = File.ReadAllBytes(inFile);
if (inBytes.Length > image.Length)
{
throw new Exception($"{Path.GetFileName(inFile)} is larger than original image");
}
byte[] bytes = new byte[image.Length];
for (var i = 0; i < inBytes.Length; ++i)
{
bytes[i] = inBytes[i];
}
using (var writer = File.OpenWrite(_outFile))
{
writer.Seek(image.Start, SeekOrigin.Begin);
await writer.WriteAsync(bytes, 0, bytes.Length);
}
}
private async Task ReadFile(ImageFileDef image)
{
var outf = $"{_outDir}\\{image.FileName}.png";
byte[] test = new byte[image.Length];
using (var stream = File.OpenRead(_inFile))
{
stream.Seek(image.Start, SeekOrigin.Begin);
await stream.ReadAsync(test, 0, (int)image.Length);
}
using (FileStream stream = File.Open(outf, FileMode.Create))
{
await stream.WriteAsync(test, 0, test.Length);
}
}