public bool GetSubHeaderV2(int group, int image, out SFFSUBHEADERv2 header)
{
if ((mSubHeadersV2 == null) || (group < 0) || (image < 0))
{
header = new SFFSUBHEADERv2();
return false;
}
if (mSubHeadersV2 != null)
for (int i = 0; i < mSubHeadersV2.Count; ++i)
{
SFFSUBHEADERv2 sub = mSubHeadersV2[i];
int g = (int)sub.GroubNumber;
int img = (int)sub.ImageNumber;
if (g != group || img != image)
continue;
while (true)
{
if ((sub.subfileLength == 0) && (sub.IndexOfPrevious > 0) && (sub.IndexOfPrevious <= mSubHeadersV2.Count))
{
sub = mSubHeadersV2[sub.IndexOfPrevious - 1];
}
else
break;
}
header = sub;
return true;
}
header = new SFFSUBHEADERv2();
return false;
}
private bool LoadSubFilesV2(SFFHEADERv2 header, Stream stream)
{
if (stream == null || header.offsetSubFile == 0)
return false;
int offset = (int)header.offsetSubFile;
if (offset < 0 || offset >= stream.Length)
return false;
int cnt = (int)header.totalImage;
if (cnt < 0)
return false;
if (stream.Seek (offset, SeekOrigin.Begin) != offset)
return false;
var filePathMgr = FilePathMgr.GetInstance ();
for (int i = 0; i < cnt; ++i) {
SFFSUBHEADERv2 subHeader = SFFSUBHEADERv2.LoadFromStream (stream);
SubHeadersV2.Add (subHeader);
}
if (mSubHeadersV2 != null) {
for (int i = 0; i < mSubHeadersV2.Count; ++i) {
var subHeader = mSubHeadersV2 [i];
KeyValuePair<uint, uint> key = new KeyValuePair<uint, uint> ((uint)subHeader.GroubNumber, (uint)subHeader.ImageNumber);
if (mPcxDataMap.ContainsKey (key))
continue;
// 读取pcx
if (subHeader.subfileLength == 0 && subHeader.IndexOfPrevious != 0) {
// LINK模式
} else {
if (subHeader.subfileLength == 0)
continue;
int off = (int)subHeader.offsetData;
if (off > 0) {
stream.Seek (off, SeekOrigin.Begin);
byte[] buffer = new byte[subHeader.subfileLength];
stream.Read (buffer, 0, buffer.Length);
buffer = DeCompressBuffer (buffer, (PcxCompressType)subHeader.fmt);
}
}
}
}
return true;
}
public static SFFSUBHEADERv2 LoadFromStream(Stream stream)
{
SFFSUBHEADERv2 subHeader = new SFFSUBHEADERv2 ();
if (stream == null)
return subHeader;
var filePathMgr = FilePathMgr.GetInstance ();
subHeader.GroubNumber = filePathMgr.ReadShort(stream);
subHeader.ImageNumber = filePathMgr.ReadShort(stream);
subHeader.width = filePathMgr.ReadShort(stream);
subHeader.height = filePathMgr.ReadShort(stream);
subHeader.x = filePathMgr.ReadShort(stream);
subHeader.y = filePathMgr.ReadShort(stream);
subHeader.IndexOfPrevious = filePathMgr.ReadShort(stream);
subHeader.fmt = (byte)stream.ReadByte();
subHeader.coldepth = (byte)stream.ReadByte();
subHeader.offsetData = (uint)filePathMgr.ReadInt(stream);
subHeader.subfileLength = (uint)filePathMgr.ReadInt(stream);
subHeader.palletteIndex = filePathMgr.ReadShort(stream);
subHeader.flags = filePathMgr.ReadShort(stream);
return subHeader;
}
public bool GetSubHeaderV2(int index, out SFFSUBHEADERv2 header)
{
if ((mSubHeadersV2 == null) || (index < 0) || (index >= mSubHeadersV2.Count))
{
header = new SFFSUBHEADERv2();
return false;
}
header = mSubHeadersV2[index];
while (true)
{
if ((header.subfileLength == 0) && (header.IndexOfPrevious > 0) && (header.IndexOfPrevious < mSubHeadersV2.Count))
{
header = mSubHeadersV2[header.IndexOfPrevious - 1];
}
else
break;
}
return true;
}