public byte[] GetShader(SourceShader sourceShader)
{
if (shaders.TryGetValue(sourceShader, out var shader))
{
return(shader);
}
throw new Exception("Shader " + sourceShader + " was not in the shader cache.");
}
//* * * * NONE OF THIS CLASS IS THREAD SAFE * * * *
//FORMAT OF SHADER CONTENT ARCHIVE:
//Count of elements stored in int32
//{List of name-bytecode pairs}
//
//Where each pair is represented as:
//Unique shader name
//Element size in bytes (int64)
//{Chunk of element-defined bytes}
//
//Where each Unique element name is represented by a UTF-16 string, stored as:
//Character count (int32)
//{Characters}
public static void Save(Dictionary <SourceShader, byte[]> archive, Stream stream)
{
//Save the number of elements.
using (var writer = new BinaryWriter(stream))
{
writer.Write(archive.Count);
//Save every element in sequence.
foreach (var pathShaderPair in archive)
{
SourceShader.Write(writer, pathShaderPair.Key);
//Write the size of the element.
var size = pathShaderPair.Value.Length;
writer.Write(size);
//Write the element's data.
writer.Write(pathShaderPair.Value, 0, size);
}
}
}
public static ShaderCache Load(Stream stream)
{
var archive = new Dictionary <SourceShader, byte[]>();
using (var reader = new BinaryReader(stream))
{
var count = reader.ReadInt32();
for (int i = 0; i < count; ++i)
{
//Read the name length.
var shader = SourceShader.Read(reader);
//Read the size in bytes of the content element data itself.
int sizeInBytes = reader.ReadInt32();
var data = new byte[sizeInBytes];
reader.Read(data, 0, sizeInBytes);
archive.Add(shader, data);
}
}
return(new ShaderCache(archive));
}
