public void Apply(GraphicsDevice graphicsDevice, EffectParameterResourceBinding[] bindings, EffectParameterCollectionGroup parameterCollectionGroup, ref EffectStateBindings effectStateBindings, bool applyEffectStates)
{
// Apply shader parameters
for (int i = 0; i < bindings.Length; i++)
{
bindings[i].ApplyParameterWithUpdater(graphicsDevice, ref bindings[i].Description, parameterCollectionGroup);
}
if (applyEffectStates)
{
// Apply graphics states
var rasterizerState = parameterCollectionGroup.GetValue<RasterizerState>(effectStateBindings.RasterizerStateKeyIndex);
if (rasterizerState != null)
{
graphicsDevice.SetRasterizerState(rasterizerState);
}
var depthStencilState = parameterCollectionGroup.GetValue<DepthStencilState>(effectStateBindings.DepthStencilStateKeyIndex);
if (depthStencilState != null)
{
graphicsDevice.SetDepthStencilState(depthStencilState);
}
var blendState = parameterCollectionGroup.GetValue<BlendState>(effectStateBindings.BlendStateKeyIndex);
if (blendState != null)
{
graphicsDevice.SetBlendState(blendState);
}
}
}
public void PrepareBindings(EffectParameterResourceBinding[] bindings)
{
for (int i = 0; i < bindings.Length; i++)
{
PrepareBinding(ref bindings[i]);
}
}
public void UnbindResources(GraphicsDevice graphicsDevice, EffectParameterResourceBinding[] bindings)
{
// look for shader resource and unbind
for (int i = 0; i < bindings.Length; i++)
{
var binding = bindings[i];
if (binding.Description.Param.Class == EffectParameterClass.ShaderResourceView)
graphicsDevice.SetShaderResourceView(binding.Description.Stage, binding.Description.SlotStart, null);
else if (binding.Description.Param.Class == EffectParameterClass.UnorderedAccessView)
graphicsDevice.SetUnorderedAccessView(binding.Description.Stage, binding.Description.SlotStart, null);
}
}
private void PrepareBinding(ref EffectParameterResourceBinding binding)
{
switch (binding.Description.Param.Class)
{
case EffectParameterClass.ConstantBuffer: // Constant buffer
binding.ApplyParameterWithUpdater = UpdateConstantBufferFromUpdater;
binding.ApplyParameterDirect = UpdateConstantBufferDirect;
break;
case EffectParameterClass.Sampler: // Sampler state
binding.ApplyParameterWithUpdater = UpdateSamplerFromUpdater;
binding.ApplyParameterDirect = UpdateSamplerDirect;
break;
case EffectParameterClass.ShaderResourceView: // Texture & StructuredBuffer (using ShaderResourceView)
binding.ApplyParameterWithUpdater = UpdateShaderResourceViewFromUpdater;
binding.ApplyParameterDirect = UpdateShaderResourceViewDirect;
break;
case EffectParameterClass.UnorderedAccessView: // RWTexture, RWStructuredBuffer only valid for Compute shaders.
binding.ApplyParameterWithUpdater = UpdateUnorderedAccessViewFromUpdater;
binding.ApplyParameterDirect = UpdateUnorderedAccessViewDirect;
break;
}
}
