/// <summary>
/// Reads a DDS header from a stream. On return, the stream will be positioned at the beginning of the texture data.
/// </summary>
/// <param name="stream">The stream to read from.</param>
/// <returns>The header that was read.</returns>
/// <exception cref="System.InvalidOperationException">Thrown if the DDS header is invalid.</exception>
public static DdsHeader Read(Stream stream)
{
var reader = new BinaryReader(stream);
if (stream.Length - stream.Position < 128)
{
throw new InvalidOperationException("Invalid DDS file: header is too small");
}
var result = new DdsHeader();
// Read and verify magic
if (reader.ReadUInt32() != DdsFourCc.FromString("DDS "))
{
throw new InvalidOperationException("Invalid DDS file: invalid header magic");
}
// Read the DDS header
result.ReadDdsHeader(reader);
// If the format FourCC is 'DX10', read the extended header
if (result.FourCc == DdsFourCc.FromString("DX10"))
{
result.ReadDdsD3D10Header(reader);
}
return(result);
}
private void WriteDdsPixelFormat(BinaryWriter writer)
{
writer.Write(32);
writer.Write((uint)CalculateFormatFlags());
writer.Write((D3D10Format == DxgiFormat.Unknown) ? FourCc : DdsFourCc.FromString("DX10"));
writer.Write(BitsPerPixel);
writer.Write(RBitMask);
writer.Write(GBitMask);
writer.Write(BBitMask);
writer.Write(ABitMask);
}
/// <summary>
/// Writes the DDS header to a stream. On return, the stream will be positioned where the texture data should go.
/// </summary>
/// <param name="stream">The stream to write to.</param>
/// <exception cref="System.InvalidOperationException">Thrown if an error occurs while saving.</exception>
public void WriteTo(Stream stream)
{
var writer = new BinaryWriter(stream);
writer.Write(DdsFourCc.FromString("DDS "));
WriteDdsHeader(writer);
if (D3D10Format != DxgiFormat.Unknown)
{
WriteDdsD3D10Header(writer);
}
}
public void InjectDds(TagSerializer serializer, TagDeserializer deserializer, Bitmap bitmap, int imageIndex, Stream ddsStream)
{
var resource = bitmap.Resources[imageIndex].Resource;
var newResource = (resource == null);
ResourceSerializationContext resourceContext;
BitmapTextureResourceDefinition definition;
if (newResource)
{
// Create a new resource reference
resource = new ResourceReference
{
DefinitionFixups = new List <ResourceDefinitionFixup>(),
D3DObjectFixups = new List <D3DObjectFixup>(),
Type = 1, // TODO: Map out this type enum instead of using numbers
Unknown68 = 1
};
bitmap.Resources[imageIndex].Resource = resource;
resourceContext = new ResourceSerializationContext(resource);
definition = new BitmapTextureResourceDefinition
{
Texture = new D3DPointer <BitmapTextureResourceDefinition.BitmapDefinition>
{
Definition = new BitmapTextureResourceDefinition.BitmapDefinition()
}
};
}
else
{
// Deserialize the old definition
resourceContext = new ResourceSerializationContext(resource);
definition = deserializer.Deserialize <BitmapTextureResourceDefinition>(resourceContext);
}
if (definition.Texture == null || definition.Texture.Definition == null)
{
throw new ArgumentException("Invalid bitmap definition");
}
var texture = definition.Texture.Definition;
var imageData = bitmap.Images[imageIndex];
// Read the DDS header and modify the definition to match
var dds = DdsHeader.Read(ddsStream);
var dataSize = (int)(ddsStream.Length - ddsStream.Position);
texture.Data = new ResourceDataReference(dataSize, new ResourceAddress(ResourceAddressType.Resource, 0));
texture.Width = (short)dds.Width;
texture.Height = (short)dds.Height;
texture.Depth = (sbyte)Math.Max(1, dds.Depth);
texture.Levels = (sbyte)Math.Max(1, dds.MipMapCount);
texture.Type = BitmapDdsFormatDetection.DetectType(dds);
texture.D3DFormatUnused = (int)((dds.D3D10Format != DxgiFormat.Bc5UNorm) ? dds.FourCc : DdsFourCc.FromString("ATI2"));
texture.Format = BitmapDdsFormatDetection.DetectFormat(dds);
// Set flags based on the format
switch (texture.Format)
{
case BitmapFormat.Dxt1:
case BitmapFormat.Dxt3:
case BitmapFormat.Dxt5:
case BitmapFormat.Dxn:
texture.Flags = BitmapFlags.Compressed;
break;
default:
texture.Flags = BitmapFlags.None;
break;
}
if ((texture.Width & (texture.Width - 1)) == 0 && (texture.Height & (texture.Height - 1)) == 0)
{
texture.Flags |= BitmapFlags.PowerOfTwoDimensions;
}
// If creating a new image, then add a new resource, otherwise replace the existing one
if (newResource)
{
_resourceManager.Add(resource, ResourceLocation.Textures, ddsStream);
}
else
{
_resourceManager.Replace(resource, ddsStream);
}
// Serialize the new resource definition
serializer.Serialize(resourceContext, definition);
// Modify the image data in the bitmap tag to match the definition
imageData.Width = texture.Width;
imageData.Height = texture.Height;
imageData.Depth = texture.Depth;
imageData.Type = texture.Type;
imageData.Format = texture.Format;
imageData.Flags = texture.Flags;
imageData.MipmapCount = (sbyte)(texture.Levels - 1);
imageData.DataOffset = texture.Data.Address.Offset;
imageData.DataSize = texture.Data.Size;
imageData.Unknown15 = texture.Unknown35;
}
public void InjectDds(TagSerializer serializer, TagDeserializer deserializer, Bitmap bitmap, int imageIndex, Stream ddsStream, ResourceLocation location = ResourceLocation.Textures)
{
var resource = bitmap.Resources[imageIndex].Resource;
var newResource = (resource == null);
ResourceSerializationContext resourceContext;
BitmapTextureInteropResource definition;
if (newResource)
{
// Create a new resource reference
resource = new PageableResource
{
Page = new RawPage(),
Resource = new TagResourceGen3
{
ResourceFixups = new List <TagResourceGen3.ResourceFixup>(),
ResourceDefinitionFixups = new List <TagResourceGen3.ResourceDefinitionFixup>(),
ResourceType = TagResourceTypeGen3.Bitmap,
Unknown2 = 1
}
};
bitmap.Resources[imageIndex].Resource = resource;
resourceContext = new ResourceSerializationContext(CacheContext, resource);
definition = new BitmapTextureInteropResource
{
Texture = new TagStructureReference <BitmapTextureInteropResource.BitmapDefinition>
{
Definition = new BitmapTextureInteropResource.BitmapDefinition
{
Data = new TagData(),
UnknownData = new TagData(),
}
}
};
}
else
{
// Deserialize the old definition
resourceContext = new ResourceSerializationContext(CacheContext, resource);
definition = deserializer.Deserialize <BitmapTextureInteropResource>(resourceContext);
}
if (definition.Texture == null || definition.Texture.Definition == null)
{
throw new ArgumentException("Invalid bitmap definition");
}
var texture = definition.Texture.Definition;
var imageData = bitmap.Images[imageIndex];
// Read the DDS header and modify the definition to match
var dds = DdsHeader.Read(ddsStream);
var dataSize = (int)(ddsStream.Length - ddsStream.Position);
texture.Data = new TagData(dataSize, new CacheResourceAddress(CacheResourceAddressType.Resource, 0));
texture.Width = (short)dds.Width;
texture.Height = (short)dds.Height;
texture.Depth = (sbyte)Math.Max(1, dds.Depth);
texture.MipmapCount = (sbyte)Math.Max(1, dds.MipMapCount);
texture.Type = BitmapDdsFormatDetection.DetectType(dds);
texture.D3DFormat = (int)((dds.D3D10Format != DxgiFormat.Bc5UNorm) ? dds.FourCc : DdsFourCc.FromString("ATI2"));
texture.Format = BitmapDdsFormatDetection.DetectFormat(dds);
// Set flags based on the format
switch (texture.Format)
{
case BitmapFormat.Dxt1:
case BitmapFormat.Dxt3:
case BitmapFormat.Dxt5:
case BitmapFormat.Dxn:
texture.Flags = BitmapFlags.Compressed;
break;
default:
texture.Flags = BitmapFlags.None;
break;
}
if ((texture.Width & (texture.Width - 1)) == 0 && (texture.Height & (texture.Height - 1)) == 0)
{
texture.Flags |= BitmapFlags.PowerOfTwoDimensions;
}
// If creating a new image, then add a new resource, otherwise replace the existing one
if (newResource)
{
resource.ChangeLocation(location);
CacheContext.AddResource(resource, ddsStream);
}
else
{
CacheContext.ReplaceResource(resource, ddsStream);
}
// Serialize the new resource definition
serializer.Serialize(resourceContext, definition);
// Modify the image data in the bitmap tag to match the definition
imageData.Width = texture.Width;
imageData.Height = texture.Height;
imageData.Depth = texture.Depth;
imageData.Type = texture.Type;
imageData.Format = texture.Format;
imageData.Flags = texture.Flags;
imageData.MipmapCount = (sbyte)(texture.MipmapCount - 1);
imageData.DataOffset = texture.Data.Address.Offset;
imageData.DataSize = texture.Data.Size;
imageData.Curve = (BitmapImageCurve)texture.Curve;
}