/// <summary>
/// * Inflates either zlib or gzip deflated memory. The inflated memory is
/// * expected to be freed by the caller.
/// *
/// * It will allocate 256k for the destination buffer. If it is not enought it will multiply the previous buffer size per 2, until there is enough memory.
/// * @returns the length of the deflated buffer
/// *
/// @since v0.8.1
/// </summary>
/// <param name="parameterin"></param>
/// <param name="inLength"></param>
/// <param name="parameterout"></param>
/// <returns></returns>
public static int InflateMemory(byte[] parameterin, uint inLength, byte[] parameterout)
{
MemoryStream ms = new MemoryStream(parameterout, true);
try
{
GZipStream gs = new GZipStream(new MemoryStream(parameterin, false)); // , CompressionMode.Decompress, false);
#if XBOX
byte[] b = new byte[8096];
while (gs.CanRead)
{
int amt = gs.Read(b, 0, b.Length);
if (amt <= 0)
{
break;
}
ms.Write(b, 0, amt);
}
#else
gs.CopyTo(ms);
#endif
return ((int)ms.Length);
}
catch (Exception)
{
// Nog a gzip stream, could be zlib stream
}
return (0);
}
/// <summary>
/// * Inflates either zlib or gzip deflated memory. The inflated memory is
/// * expected to be freed by the caller.
/// *
/// * It will allocate 256k for the destination buffer. If it is not enought it will multiply the previous buffer size per 2, until there is enough memory.
/// * @returns the length of the deflated buffer
/// *
/// @since v0.8.1
/// </summary>
/// <param name="parameterin"></param>
/// <param name="inLength"></param>
/// <param name="parameterout"></param>
/// <returns></returns>
public static int InflateMemory(byte[] parameterin, uint inLength, byte[] parameterout)
{
MemoryStream ms = new MemoryStream(parameterout, true);
try
{
GZipStream gs = new GZipStream(new MemoryStream(parameterin, false)); // , CompressionMode.Decompress, false);
gs.CopyTo(ms);
return ((int)ms.Length);
}
catch (Exception)
{
// Nog a gzip stream, could be zlib stream
}
return (0);
}
public void EndElement(object ctx, string elementName)
{
CCTMXMapInfo pTMXMapInfo = this;
byte[] encoded = null;
if (elementName == "data" && (pTMXMapInfo.LayerAttribs & (int) CCTMXLayerAttrib.Base64) != 0)
{
pTMXMapInfo.StoringCharacters = false;
CCTMXLayerInfo layer = pTMXMapInfo.Layers.LastOrDefault();
if ((pTMXMapInfo.LayerAttribs & ((int) (CCTMXLayerAttrib.Gzip) | (int) CCTMXLayerAttrib.Zlib)) != 0)
{
//gzip compress
if ((pTMXMapInfo.LayerAttribs & (int) CCTMXLayerAttrib.Gzip) != 0)
{
try
{
GZipStream inGZipStream = new GZipStream(new MemoryStream(pTMXMapInfo.CurrentString));
var outMemoryStream = new MemoryStream();
var buffer = new byte[1024];
while (true)
{
int bytesRead = inGZipStream.Read(buffer, 0, buffer.Length);
if (bytesRead == 0)
break;
outMemoryStream.Write(buffer, 0, bytesRead);
}
encoded = outMemoryStream.ToArray();
}
catch (Exception ex)
{
CCLog.Log("failed to decompress embedded data object in TMX file.");
CCLog.Log(ex.ToString());
}
}
//zlib
if ((pTMXMapInfo.LayerAttribs & (int) CCTMXLayerAttrib.Zlib) != 0)
{
var inZInputStream = new ZInputStream(new MemoryStream(pTMXMapInfo.CurrentString));
var outMemoryStream = new MemoryStream();
var buffer = new byte[1024];
while (true)
{
int bytesRead = inZInputStream.Read(buffer, 0, buffer.Length);
if (bytesRead == 0)
break;
outMemoryStream.Write(buffer, 0, bytesRead);
}
encoded = outMemoryStream.ToArray();
}
}
else
{
encoded = pTMXMapInfo.CurrentString;
}
for (int i = 0; i < layer.Tiles.Length; i++)
{
int i4 = i * 4;
var gid = (uint) (
encoded[i4] |
encoded[i4 + 1] << 8 |
encoded[i4 + 2] << 16 |
encoded[i4 + 3] << 24);
layer.Tiles[i] = gid;
}
pTMXMapInfo.CurrentString = null;
}
else if (elementName == "map")
{
// The map element has ended
pTMXMapInfo.ParentElement = (int) CCTMXProperty.None;
}
else if (elementName == "layer")
{
// The layer element has ended
pTMXMapInfo.ParentElement = (int) CCTMXProperty.None;
}
else if (elementName == "objectgroup")
{
// The objectgroup element has ended
pTMXMapInfo.ParentElement = (int) CCTMXProperty.None;
}
else if (elementName == "object")
{
// The object element has ended
pTMXMapInfo.ParentElement = (int) CCTMXProperty.None;
}
}