/// <summary>
/// Converts internal Mesh fields into Halo 2 compatible resource format
/// </summary>
/// <param name="resource_out">returns with array of Resource-meta structs represnting the blocks in the resource</param>
/// <returns>array of bytes which holds the serialized Halo 2 resource</returns>
public byte[] Serialize(out DResource[] resource_out, out DCompressionRanges compression_ranges, DCompressionRanges input_compression = null)
{
/* Intent: Write out the this Model instance data into a format that
* the halo 2 version of blam! engine can use.
* The resources that we will be focusing on are ShaderGroups, Indices,
* Vertex position, texcoord, tangent space vectors, and a simple bonemap.*/
Log.Info(@"Entering Model.Serialize()");
if (input_compression == null) { input_compression = GenerateCompressionData(); } // Check that we have compression data available before continuing
compression_ranges = input_compression;
DResource[] resource = new DResource[7]; // Create resource defintion array
MemoryStream buffer = new MemoryStream();
BinaryWriter bin = new BinaryWriter(buffer); // BinaryWriter
Log.Info(string.Format(@"Writing header_tag @{0}", bin.BaseStream.Position));
bin.WriteFourCC("blkh"); // Write the header_tag value
bin.Write(0); // [uint] resource_data_size (reserve)
// * Begin resource_header // size: 112
Log.Info(string.Format(@"Writing shader_groups_count = {0} @{1}", Primitives.Length, bin.BaseStream.Position));
bin.Write(Primitives.Length); // * 0x00: shader_groups_count;
bin.Write(new byte[28]); // * 0x08: some unused thing... count.
Log.Info(string.Format(@"Writing indices_count = {0} @{1}", Indices.Length, bin.BaseStream.Position));
bin.Write(Indices.Length); // * 0x20: indices_count;
bin.Write(new byte[20]);
bin.Write(3); // * 0x38: vertex_resource_count; //special
bin.Write(new byte[40]);
bin.Write(1); // * 0x64: bone_map_count;
bin.Write(new byte[8]);
Log.Info(string.Format(@"Resource data_start_offset = {0}", bin.BaseStream.Position));
var resource_data_start_offset = bin.BaseStream.Position; // This is the offset to which all DResource block_offsets are written from
bin.WriteFourCC("rsrc"); // shader_group resource begin
resource[0] = new DResource(0, 72, Primitives.Length * 72, (int)(bin.BaseStream.Position - resource_data_start_offset));
foreach (var group in Primitives)
bin.Write(group); // shader_group data
bin.WriteFourCC("rsrc"); // indices resource begin
resource[1] = new DResource(32, sizeof(ushort), sizeof(ushort) * this.Indices.Length, (int)(bin.BaseStream.Position - resource_data_start_offset));
foreach (ushort index in this.Indices) // write each index ushort
bin.Write(index); // pad to word boundary
bin.WritePadding(4);
bin.WriteFourCC("rsrc"); // vertex_data_header?
resource[2] = new DResource(56, 32, 32 * 3, (int)(bin.BaseStream.Position - resource_data_start_offset));
bin.Write(VERTEX_RESOURCE_HEADER_DATA); // laziness TODO: write out proper headers here to allow for other types
bin.WriteFourCC("rsrc");
resource[3] = new DResource(56, 0, this.Coordinates.Length * sizeof(ushort) * 3, (int)(bin.BaseStream.Position - resource_data_start_offset), true);
{
foreach (var vertex in this.Coordinates)
{
bin.Write(Deflate(input_compression.X, vertex.X));
bin.Write(Deflate(input_compression.Y, vertex.Y));
bin.Write(Deflate(input_compression.Z, vertex.Z));
}
bin.WritePadding(4);
}
bin.WriteFourCC("rsrc");
resource[4] = new DResource(56, 1, this.TextureCoordinates.Length * sizeof(ushort) * 2, (int)(bin.BaseStream.Position - resource_data_start_offset), true);
{
foreach (var vertex in this.TextureCoordinates)
{
bin.Write(Deflate(input_compression.U, vertex.X));
bin.Write(Deflate(input_compression.V, vertex.Y)); // flip this still?
}
}
bin.WriteFourCC("rsrc");
resource[5] = new DResource(56, 2, this.Normals.Length * sizeof(uint) * 3, (int)(bin.BaseStream.Position - resource_data_start_offset), true);
for(int i = 0; i < this.Normals.Length;++i)
{
bin.Write((uint)(Vector3t)Normals[i]); //cast to vector3t is destructive...
bin.Write((uint)(Vector3t)Tangents[i]);
bin.Write((uint)(Vector3t)Bitangents[i]);
}
bin.WriteFourCC("rsrc");
resource[6] = new DResource(100, 1, 1, (int)(bin.BaseStream.Position - resource_data_start_offset));
bin.Write(0); // default bone-map (no bones)
bin.WriteFourCC("blkf");
int resource_size = (int)bin.BaseStream.Position;
bin.Seek(4, SeekOrigin.Begin);
bin.Write(resource_size - 124);
// debug dump
#if DEBUG
try
{
using (var file = File.OpenWrite(@"D:\halo_2\model_raw.bin"))
{
file.Write(buffer.ToArray(), 0, (int)buffer.Length);
}
}
catch { }
#endif
// end debug dump
// 2. create a sections meta file for this, a bounding box, heck a whole mesh, why not.
resource_out = resource;
return buffer.ToArray();
}
public Resource(DResource dResource)
: this()
{
this.SetDefinitionData(dResource);
}