private void CreateShaders()
{
foreach (var shaderBytecode in effectBytecode.Stages)
{
var bytecodeRaw = shaderBytecode.Data;
var reflection = effectBytecode.Reflection;
// TODO CACHE Shaders with a bytecode hash
switch (shaderBytecode.Stage)
{
case ShaderStage.Vertex:
vertexShader = new VertexShader(GraphicsDevice.NativeDevice, bytecodeRaw);
// Note: input signature can be reused when reseting device since it only stores non-GPU data,
// so just keep it if it has already been created before.
if (inputSignature == null)
{
inputSignature = EffectInputSignature.GetOrCreateLayout(new EffectInputSignature(shaderBytecode.Id, bytecodeRaw));
}
break;
case ShaderStage.Domain:
domainShader = new DomainShader(GraphicsDevice.NativeDevice, bytecodeRaw);
break;
case ShaderStage.Hull:
hullShader = new HullShader(GraphicsDevice.NativeDevice, bytecodeRaw);
break;
case ShaderStage.Geometry:
if (reflection.ShaderStreamOutputDeclarations != null && reflection.ShaderStreamOutputDeclarations.Count > 0)
{
// Calculate the strides
var soStrides = new List <int>();
foreach (var streamOutputElement in reflection.ShaderStreamOutputDeclarations)
{
for (int i = soStrides.Count; i < (streamOutputElement.Stream + 1); i++)
{
soStrides.Add(0);
}
soStrides[streamOutputElement.Stream] += streamOutputElement.ComponentCount * sizeof(float);
}
var soElements = new StreamOutputElement[0]; // TODO CREATE StreamOutputElement from bytecode.Reflection.ShaderStreamOutputDeclarations
geometryShader = new GeometryShader(GraphicsDevice.NativeDevice, bytecodeRaw, soElements, soStrides.ToArray(), reflection.StreamOutputRasterizedStream);
}
else
{
geometryShader = new GeometryShader(GraphicsDevice.NativeDevice, bytecodeRaw);
}
break;
case ShaderStage.Pixel:
pixelShader = new PixelShader(GraphicsDevice.NativeDevice, bytecodeRaw);
break;
case ShaderStage.Compute:
computeShader = new ComputeShader(GraphicsDevice.NativeDevice, bytecodeRaw);
break;
}
}
}
