public static byte[] ConvertDDS(GUIDEntry value, DXGI_FORMAT targetFormat, ImageFormat imageFormat, int frame)
{
try
{
if (GetDataType(value) != DataType.Image)
{
return(null);
}
teTexture texture = new teTexture(IOHelper.OpenFile(value));
if (texture.PayloadRequired)
{
ulong payload = texture.GetPayloadGUID(value.GUID);
if (value.APM.FirstOccurence.ContainsKey(payload))
{
texture.LoadPayload(IOHelper.OpenFile(value.APM.FirstOccurence[payload]));
}
else
{
return(null);
}
}
Stream ms = texture.SaveToDDS();
CoInitializeEx(IntPtr.Zero, CoInit.MultiThreaded | CoInit.SpeedOverMemory);
byte[] data = new byte[ms.Length];
ms.Read(data, 0, data.Length);
ScratchImage scratch = null;
try
{
unsafe
{
fixed(byte *dataPin = data)
{
scratch = TexHelper.Instance.LoadFromDDSMemory((IntPtr)dataPin, data.Length, DDS_FLAGS.NONE);
TexMetadata info = scratch.GetMetadata();
if (TexHelper.Instance.IsCompressed(info.Format))
{
ScratchImage temp = scratch.Decompress(frame, DXGI_FORMAT.UNKNOWN);
scratch.Dispose();
scratch = temp;
}
info = scratch.GetMetadata();
if (info.Format != targetFormat)
{
ScratchImage temp = scratch.Convert(targetFormat, TEX_FILTER_FLAGS.DEFAULT, 0.5f);
scratch.Dispose();
scratch = temp;
}
UnmanagedMemoryStream stream = null;
if (imageFormat == ImageFormat.TGA)
{
stream = scratch.SaveToTGAMemory(frame < 0 ? 0 : frame);
}
else
{
WICCodecs codec = WICCodecs.PNG;
bool isMultiframe = false;
switch (imageFormat)
{
case ImageFormat.BMP:
codec = WICCodecs.BMP;
break;
case ImageFormat.GIF:
codec = WICCodecs.GIF;
isMultiframe = true;
break;
case ImageFormat.JPEG:
codec = WICCodecs.JPEG;
break;
case ImageFormat.PNG:
codec = WICCodecs.PNG;
break;
case ImageFormat.TIF:
codec = WICCodecs.TIFF;
isMultiframe = true;
break;
}
if (frame < 0)
{
if (!isMultiframe)
{
frame = 0;
}
else
{
stream = scratch.SaveToWICMemory(0, info.ArraySize, WIC_FLAGS.ALL_FRAMES, TexHelper.Instance.GetWICCodec(codec));
}
}
if (frame >= 0)
{
stream = scratch.SaveToWICMemory(frame, WIC_FLAGS.NONE, TexHelper.Instance.GetWICCodec(codec));
}
byte[] tex = new byte[stream.Length];
stream.Read(tex, 0, tex.Length);
scratch.Dispose();
return(tex);
}
}
}
}
catch
{
if (scratch != null && scratch.IsDisposed == false)
{
scratch?.Dispose();
}
}
}
catch
{
}
return(null);
}