private static HgxImage ExtractHg2Internal(HGXHDR hdr, BinaryReader reader, string fileName, string outputDir,
HgxOptions options)
{
Stream stream = reader.BaseStream;
List <Hg2FrameInfo> frameInfos = new List <Hg2FrameInfo>();
Hg2FrameInfo frameInfo = null;
long startPosition = stream.Position;
do
{
stream.Position = startPosition + (frameInfo?.Img.OffsetNext ?? 0);
startPosition = stream.Position;
frameInfo = ReadHg2FrameInfo(reader, hdr, false);
frameInfos.Add(frameInfo);
} while (frameInfo.Img.OffsetNext != 0);
HgxImage hg2Image = new HgxImage(Path.GetFileName(fileName), hdr, frameInfos.ToArray(), options);
if (outputDir != null)
{
for (int imgIndex = 0; imgIndex < frameInfos.Count; imgIndex++)
{
frameInfo = frameInfos[imgIndex];
string pngFile = hg2Image.Frames[imgIndex].GetFrameFilePath(outputDir, false);
ExtractHg2Image(reader, frameInfo, options, pngFile);
}
}
return(hg2Image);
}
/// <summary>
/// Extracts the HG-X image information ONLY from open KIFINT archive stream and does not extract the actual
/// images.
/// </summary>
/// <param name="entry">The entry to extract from.</param>
/// <param name="kifintStream">The stream to the open KIFINT archive.</param>
/// <returns>The extracted <see cref="HgxImage"/> information.</returns>
///
/// <exception cref="ArgumentNullException">
/// <paramref name="entry"/> or <paramref name="kifintStream"/> is null.
/// </exception>
public static HgxImage ExtractHgx(this KifintEntry entry, KifintStream kifintStream)
{
if (entry == null)
{
throw new ArgumentNullException(nameof(entry));
}
using (var stream = entry.ExtractToStream(kifintStream))
return(HgxImage.Extract(stream, entry.FileName));
}
/// <summary>
/// Extracts the HG-X image information from the KIFINT entry's open KIFINT archive stream and saves all
/// images to the output <paramref name="outputDir"/>.
/// </summary>
/// <param name="entry">The entry to extract from.</param>
/// <param name="kifintStream">The stream to the open KIFINT archive.</param>
/// <param name="outputDir">The output directory to save the images to.</param>
/// <param name="options">The options for manipulating the image during extraction.</param>
/// <returns>The extracted <see cref="HgxImage"/> information.</returns>
///
/// <exception cref="ArgumentNullException">
/// <paramref name="entry"/>, <paramref name="kifintStream"/>, or <paramref name="outputDir"/> is null.
/// </exception>
public static HgxImage ExtractHgxAndImages(this KifintEntry entry, KifintStream kifintStream, string outputDir, HgxOptions options)
{
if (entry == null)
{
throw new ArgumentNullException(nameof(entry));
}
using (var stream = entry.ExtractToStream(kifintStream))
return(HgxImage.ExtractImages(stream, entry.FileName, outputDir, options));
}
private static HgxImage ExtractHg3Internal(HGXHDR hdr, BinaryReader reader, string fileName, string outputDir,
HgxOptions options)
{
Stream stream = reader.BaseStream;
List <Hg3FrameInfo> frameInfos = new List <Hg3FrameInfo>();
Hg3FrameInfo frameInfo = null;
long startPosition = stream.Position;
do
{
stream.Position = startPosition + (frameInfo?.Header.OffsetNext ?? 0);
// NEW-NEW METHOD: We now know the next offset ahead
// of time from the HG3OFFSET we're going to read.
// Usually skips 0 bytes, otherwise usually 1-7 bytes.
startPosition = stream.Position;
frameInfo = ReadHg3FrameInfo(reader, hdr, false);
frameInfos.Add(frameInfo);
} while (frameInfo.Header.OffsetNext != 0);
HgxImage hg3Image = new HgxImage(Path.GetFileName(fileName), hdr, frameInfos.ToArray(), options);
if (outputDir != null)
{
for (int imgIndex = 0; imgIndex < frameInfos.Count; imgIndex++)
{
frameInfo = frameInfos[imgIndex];
string pngFile = hg3Image.Frames[imgIndex].GetFrameFilePath(outputDir, false);
ExtractHg3Image(reader, frameInfo, options, pngFile);
}
}
return(hg3Image);
}
