public void TestOblivionSDP_File()
{
const string file = "oblivion-test-sdp.sdp";
using (var fs = File.Open(file, FileMode.Create, FileAccess.ReadWrite, FileShare.Read))
using (var bw = new BinaryWriter(fs, Encoding.UTF8, false))
{
const uint count = 2;
bw.Write(0x64);
bw.Write(count);
bw.Write(0x248);
for (var i = 0; i < count; i++)
{
Span <char> name = new char[0x100];
name.Fill((char)0);
var sName = $"MyShader{i}".AsSpan();
sName.CopyTo(name);
bw.Write(name);
bw.Write(0x20);
Span <byte> data = new byte[0x20];
data.Fill(0);
data[0] = (byte)i;
bw.Write(data);
}
}
var newData = new byte[0x10];
OblivionSDP.EditShaderPackage(file, "MyShader1", newData);
using var stream = File.Open(file, FileMode.Open, FileAccess.Read, FileShare.Read);
using var br = new BinaryReader(stream, Encoding.UTF8, false);
Assert.Equal((uint)0x64, br.ReadUInt32());
Assert.Equal((uint)2, br.ReadUInt32());
//new changed size
Assert.Equal((uint)0x238, br.ReadUInt32());
//skip first shader and the name of the second one
br.BaseStream.Seek(0x100 + 4 + 0x20 + 0x100, SeekOrigin.Current);
//new length of the changed shader
Assert.Equal((uint)newData.Length, br.ReadUInt32());
}
/// <summary>
/// Executes the edit and changes a shader package.
/// </summary>
/// <param name="extractionFolder">Path to the extraction folder, this should be <see cref="ScriptReturnData.DataFolder"/></param>.
/// <param name="shaderPath">Path to the shader file that should be edited.</param>
/// <param name="outputPath">Optional output path if you don't want the shader to be overwritten.</param>
/// <exception cref="ArgumentException">The file does not exist</exception>
public void ExecuteEdit(string extractionFolder, string shaderPath, string?outputPath = null)
{
var filePath = File.GetFileInFolder(extractionFolder);
if (!System.IO.File.Exists(filePath))
{
throw new ArgumentException($"File does not exist: {filePath}");
}
if (!System.IO.File.Exists(shaderPath))
{
throw new ArgumentException($"File does not exist: {shaderPath}");
}
var bytes = System.IO.File.ReadAllBytes(filePath);
OblivionSDP.EditShaderPackage(shaderPath, Shader, bytes, outputPath);
}
public void TestOblivionSDP_Stream()
{
using var ms = new MemoryStream(1024);
using (var bw = new BinaryWriter(ms, Encoding.UTF8, true))
{
const uint count = 2;
bw.Write(0x64);
bw.Write(count);
bw.Write(0x248);
for (var i = 0; i < count; i++)
{
Span <char> name = new char[0x100];
name.Fill((char)0);
var sName = $"MyShader{i}".AsSpan();
sName.CopyTo(name);
bw.Write(name);
bw.Write(0x20);
Span <byte> data = new byte[0x20];
data.Fill(0);
data[0] = (byte)i;
bw.Write(data);
}
ms.Position = 0;
}
var newData = new byte[0x10];
OblivionSDP.EditShaderPackage(ms, "MyShader1", newData, out var outputStream);
using var br = new BinaryReader(outputStream, Encoding.UTF8, false);
Assert.Equal((uint)0x64, br.ReadUInt32());
Assert.Equal((uint)2, br.ReadUInt32());
//new changed size
Assert.Equal((uint)0x238, br.ReadUInt32());
//skip first shader and the name of the second one
br.BaseStream.Seek(0x100 + 4 + 0x20 + 0x100, SeekOrigin.Current);
//new length of the changed shader
Assert.Equal((uint)newData.Length, br.ReadUInt32());
}
