/// <summary>
/// Embeds the bytecode for an exported shader as private data into another shader bytecode.
/// </summary>
/// <param name="shaderBlob">The bytecode produced by <see cref="CompileD2DFullShader(ReadOnlySpan{char}, D2D1ShaderProfile)"/>.</param>
/// <param name="exportBlob">The bytecode produced by <see cref="CompileD2DFunction(ReadOnlySpan{char}, D2D1ShaderProfile)"/>.</param>
/// <returns>An <see cref="ID3DBlob"/> instance with the combined data of <paramref name="shaderBlob"/> and <paramref name="exportBlob"/>.</returns>
private static ComPtr <ID3DBlob> EmbedD2DFunctionPrivateData(ID3DBlob *shaderBlob, ID3DBlob *exportBlob)
{
void *shaderPtr = shaderBlob->GetBufferPointer();
nuint shaderSize = shaderBlob->GetBufferSize();
void *exportPtr = exportBlob->GetBufferPointer();
nuint exportSize = exportBlob->GetBufferSize();
using ComPtr <ID3DBlob> resultBlob = default;
DirectX.D3DSetBlobPart(
pSrcData: shaderPtr,
SrcDataSize: shaderSize,
Part: D3D_BLOB_PART.D3D_BLOB_PRIVATE_DATA,
Flags: 0,
pPart: exportPtr,
PartSize: exportSize,
ppNewShader: resultBlob.GetAddressOf()).Assert();
return(resultBlob.Move());
}
