protected virtual ContentWriteInfo WriteNotLoadedContentFiles(
Stream source,
Stream target,
uint contentOffset,
IEnumerable <ProxyContentFile> contentFiles,
CancellationToken token)
{
ContentWriteInfo info = new ContentWriteInfo();
target.Seek(contentOffset, SeekOrigin.Begin);
var writtenContentFiles = new Dictionary <String, ProxyContentFile>();
foreach (var file in contentFiles)
{
uint originalFileLength = file.Length;
uint originalFileOffset = file.Offset;
uint originalTotalOffset = file.TotalOffset;
var thisContentKey = originalFileLength.ToString() + originalFileOffset.ToString();
bool canReferenceWrittenContent = writtenContentFiles.ContainsKey(thisContentKey) && !file.IsCustomContentLoaded;
if (canReferenceWrittenContent)
{
var matchingWrittenContent = writtenContentFiles[thisContentKey];
file.Length = matchingWrittenContent.Length;
file.Offset = matchingWrittenContent.Offset;
file.TotalOffset = file.Offset + contentOffset;
}
else
{
file.Offset = (uint)target.Position - contentOffset;
file.TotalOffset = file.Offset + contentOffset;
byte[] fileBuffer;
if (file.IsContentLoaded)
{
fileBuffer = file.Content;
file.Length = (uint)file.Content.Length;
}
else
{
fileBuffer = new byte[file.Length];
source.Seek(originalTotalOffset, SeekOrigin.Begin);
source.Read(fileBuffer, 0, fileBuffer.Length);
}
target.Write(fileBuffer, 0, fileBuffer.Length);
info.Length += (uint)fileBuffer.Length;
writtenContentFiles.Add(thisContentKey, file);
}
token.ThrowIfCancellationRequested();
}
return(info);
}
/// <summary>
///
/// </summary>
/// <param name="target"></param>
/// <param name="contentFiles"></param>
/// <param name="contentOffset"></param>
/// <returns></returns>
protected virtual ContentWriteInfo WriteLoadedContent(
Stream target,
IEnumerable <EdataContentFile> contentFiles,
uint contentOffset,
CancellationToken token)
{
ContentWriteInfo info = new ContentWriteInfo();
//Dodane, spr:
target.Seek(contentOffset, SeekOrigin.Begin);
byte[] spaceBuffer = null;
foreach (var file in contentFiles)
{
byte[] fileBuffer = file.Content;
file.Checksum = MD5.Create().ComputeHash(fileBuffer);
file.Length = file.Content.Length;
file.Offset = target.Position - contentOffset;
long spaceSize = GetSpaceSizeForFile(file);
spaceBuffer = GetNewBufferIfNeeded(spaceBuffer, spaceSize);
target.Write(fileBuffer, 0, fileBuffer.Length);
target.Write(spaceBuffer, 0, (int)spaceSize);
info.Length += (uint)fileBuffer.Length + (uint)spaceSize;
token.ThrowIfCancellationRequested();
}
return(info);
}
protected virtual ContentWriteInfo WriteLoadedContentFiles(
Stream target,
uint contentOffset,
IEnumerable <ProxyContentFile> contentFiles,
CancellationToken token)
{
//ProxyPcPC doesn't use any spacing between content files
ContentWriteInfo info = new ContentWriteInfo();
target.Seek(contentOffset, SeekOrigin.Begin);
//Przydała by się jakaś funkcja haszujaca która potrafi zmiksować w hasz stary offset i długość
//tyle trzeba uważać bo np przy dodawani które jest przeminne moze dosjc do powtózeń jesli offset i dł by sie zamieniły miejscami.
//ProxyPCPC shares content between the files if content is the same.
//Therefore we're not writing each content uniquely but adjust values of file's offset to point to the same content spot.
var uniqueContentEntries = new Dictionary <String, ProxyContentFile>();
foreach (var file in contentFiles)
{
uint originalFileLength = file.Length;
uint originalFileOffset = file.Offset;
var thisContentKey = originalFileLength.ToString() + originalFileOffset.ToString();
bool canReferenceWrittenContent = uniqueContentEntries.ContainsKey(thisContentKey) && !file.IsCustomContentLoaded;
if (canReferenceWrittenContent)
{
var matchingWrittenContent = uniqueContentEntries[thisContentKey];
file.Length = matchingWrittenContent.Length;
file.Offset = matchingWrittenContent.Offset;
file.TotalOffset = file.Offset + contentOffset;
}
else
{
byte[] fileBuffer = file.Content;
file.Length = (uint)file.Content.Length;
file.Offset = (uint)target.Position - contentOffset;
file.TotalOffset = file.Offset + contentOffset;
target.Write(fileBuffer, 0, fileBuffer.Length);
info.Length += (uint)fileBuffer.Length;
uniqueContentEntries.Add(thisContentKey, file);
}
token.ThrowIfCancellationRequested();
}
return(info);
}
