/// <summary>
/// Gets file extension of supported surface formats.
/// Doesn't include preceding dot.
/// </summary>
/// <param name="format">Format to get file extension for.</param>
/// <returns>File extension without dot.</returns>
static string GetExtensionOfFormat(ImageEngineFormat format)
{
string formatString = format.ToString().ToLowerInvariant();
if (formatString.Contains('_'))
{
formatString = "dds";
}
return(formatString);
}
public override async Task SetObject(string filename, List <DomainNameTableEntry> nameTable)
{
ImageEngineImage image = await Task.Run(() => new ImageEngineImage(filename));
int width = image.Width;
int height = image.Height;
DomainPropertyIntValue sizeX = PropertyHeader.GetProperty("SizeX").FirstOrDefault()?.Value as DomainPropertyIntValue;
DomainPropertyIntValue sizeY = PropertyHeader.GetProperty("SizeY").FirstOrDefault()?.Value as DomainPropertyIntValue;
sizeX?.SetPropertyValue(width);
sizeY?.SetPropertyValue(height);
DomainPropertyIntValue mipTailBaseIdx = PropertyHeader.GetProperty("MipTailBaseIdx").FirstOrDefault()?.Value as DomainPropertyIntValue;
mipTailBaseIdx?.SetPropertyValue((int)Math.Log(width > height ? width : height, 2));
DomainPropertyStringValue filePath = PropertyHeader.GetProperty("SourceFilePath").FirstOrDefault()?.Value as DomainPropertyStringValue;
DomainPropertyStringValue fileTime = PropertyHeader.GetProperty("SourceFileTimestamp").FirstOrDefault()?.Value as DomainPropertyStringValue;
filePath?.SetPropertyValue(filename);
fileTime?.SetPropertyValue(File.GetLastWriteTime(filename).ToString("yyyy-MM-dd hh:mm:ss"));
DomainPropertyByteValue pfFormat = PropertyHeader.GetProperty("Format").FirstOrDefault()?.Value as DomainPropertyByteValue;
ImageEngineFormat imageFormat = image.Format.InternalFormat;
if (!imageFormat.ToString().Contains("DDS"))
{
throw new Exception($"Image is not in a DDS format. It is actually {imageFormat}.");
}
if (pfFormat != null)
{
string formatStr = imageFormat.ToString().Replace("DDS", "PF");
if (formatStr.Contains("ARGB"))
{
formatStr = "PF_A8R8G8B8";
}
else if (formatStr.Contains("G8"))
{
formatStr = "PF_G8";
}
DomainNameTableEntry formatTableEntry = nameTable.SingleOrDefault(nt => nt.Name.String == formatStr) ?? nameTable.AddDomainNameTableEntry(formatStr);
pfFormat.SetPropertyValue(formatTableEntry);
}
MipMaps.Clear();
while (true)
{
MemoryStream stream = new MemoryStream();
image.Save(stream, imageFormat, MipHandling.KeepTopOnly);
await stream.FlushAsync();
MipMaps.Add(new DomainMipMap
{
ImageData = (await ByteArrayReader.CreateNew(stream.ToArray(), 0x80).Splice()).GetBytes(), // Strip off 128 bytes for the DDS header
Width = image.Width,
Height = image.Height
});
if (width == 1 && height == 1)
{
break;
}
if (width > 1)
{
width /= 2;
}
if (height > 1)
{
height /= 2;
}
if (image.Width > 4 && image.Height > 4)
{
image.Resize(0.5, false);
}
}
}
/// <summary>
/// Determines if given format supports mipmapping.
/// </summary>
/// <param name="format">Image format to check.</param>
/// <returns></returns>
static bool IsFormatMippable(ImageEngineFormat format)
{
return(format.ToString().Contains("DDS"));
}
/// <summary>
/// Determines if given format supports mipmapping.
/// </summary>
/// <param name="format">Image format to check.</param>
/// <returns></returns>
public static bool IsFormatMippable(ImageEngineFormat format)
{
return format.ToString().Contains("DDS");
}
/// <summary>
/// Gets file extension of supported surface formats.
/// Doesn't include preceding dot.
/// </summary>
/// <param name="format">Format to get file extension for.</param>
/// <returns>File extension without dot.</returns>
public static string GetExtensionOfFormat(ImageEngineFormat format)
{
string formatString = format.ToString().ToLowerInvariant();
if (formatString.Contains('_'))
formatString = "dds";
return formatString;
}
public static string StringifyFormat(ImageEngineFormat format)
{
return(format.ToString().Replace("DDS_", "").Replace("_3Dc", ""));
}
public static string StringifyFormat(ImageEngineFormat format)
{
return format.ToString().Replace("DDS_", "").Replace("_3Dc","");
}
internal static byte[] Save(List<MipMap> mipMaps, ImageEngineFormat saveFormat, AlphaSettings alphaSetting, List<uint> customMasks = null)
{
// Set compressor for Block Compressed textures
Action<byte[], int, int, byte[], int, AlphaSettings> compressor = null;
bool needCheckSize = saveFormat.ToString().Contains("DXT") || saveFormat.ToString().Contains("ATI");
switch (saveFormat)
{
case ImageEngineFormat.DDS_ATI1:
compressor = DDS_Encoders.CompressBC4Block;
break;
case ImageEngineFormat.DDS_ATI2_3Dc:
compressor = DDS_Encoders.CompressBC5Block;
break;
case ImageEngineFormat.DDS_DX10:
Debugger.Break();
break; // TODO: NOT SUPPORTED YET. DX10
case ImageEngineFormat.DDS_DXT1:
compressor = DDS_Encoders.CompressBC1Block;
break;
case ImageEngineFormat.DDS_DXT2:
case ImageEngineFormat.DDS_DXT3:
compressor = DDS_Encoders.CompressBC2Block;
break;
case ImageEngineFormat.DDS_DXT4:
case ImageEngineFormat.DDS_DXT5:
compressor = DDS_Encoders.CompressBC3Block;
break;
}
int height = mipMaps[0].Height;
int width = mipMaps[0].Width;
if (needCheckSize && !CheckSize_DXT(width, height))
throw new InvalidOperationException($"DXT compression formats require dimensions to be multiples of 4. Got: {width}x{height}.");
int fullSize = GetCompressedSizeOfImage(mipMaps.Count, saveFormat, width, height);
// +1 to get the full size, not just the offset of the last mip.
//int fullSize = GetMipOffset(mipMaps.Count + 1, saveFormat, mipMaps[0].Width, mipMaps[0].Height);
byte[] destination = new byte[fullSize];
// Create header and write to destination
DDS_Header header = new DDS_Header(mipMaps.Count, height, width, saveFormat, customMasks);
header.WriteToArray(destination, 0);
int blockSize = ImageFormats.GetBlockSize(saveFormat);
if (ImageFormats.IsBlockCompressed(saveFormat))
{
int mipOffset = 128;
foreach (MipMap mipmap in mipMaps)
mipOffset = WriteCompressedMipMap(destination, mipOffset, mipmap, blockSize, compressor, alphaSetting);
}
else
{
// UNCOMPRESSED
var action = new Action<int>(mipIndex =>
{
if (alphaSetting == AlphaSettings.RemoveAlphaChannel)
{
// Remove alpha by setting AMask = 0
var ddspf = header.ddspf;
ddspf.dwABitMask = 0;
header.ddspf = ddspf;
}
// Get MipOffset
int offset = GetMipOffset(mipIndex, saveFormat, width, height);
WriteUncompressedMipMap(destination, offset, mipMaps[mipIndex], saveFormat, header.ddspf);
});
if (ImageEngine.EnableThreading)
Parallel.For(0, mipMaps.Count, new ParallelOptions { MaxDegreeOfParallelism = ImageEngine.NumThreads }, action);
else
for (int i = 0; i < mipMaps.Count; i++)
action(i);
}
return destination;
}