private PipelineState(GraphicsDevice graphicsDevice, PipelineStateDescription pipelineStateDescription) : base(graphicsDevice)
{
// First time, build caches
var pipelineStateCache = GetPipelineStateCache();
var depthClampEmulation = !pipelineStateDescription.RasterizerState.DepthClipEnable && !graphicsDevice.HasDepthClamp;
#if SILICONSTUDIO_XENKO_GRAPHICS_API_OPENGLES
// Depth Clamp can't be emulated on OpenGL ES 2 (TODO: warning?)
if (graphicsDevice.IsOpenGLES2)
{
depthClampEmulation = false;
}
#endif
// Store states
BlendState = new BlendState(pipelineStateDescription.BlendState, pipelineStateDescription.Output.RenderTargetCount > 0);
RasterizerState = new RasterizerState(pipelineStateDescription.RasterizerState);
DepthStencilState = new DepthStencilState(pipelineStateDescription.DepthStencilState, pipelineStateDescription.Output.DepthStencilFormat != PixelFormat.None);
PrimitiveType = pipelineStateDescription.PrimitiveType.ToOpenGL();
// Compile effect
var effectBytecode = pipelineStateDescription.EffectBytecode;
EffectProgram = effectBytecode != null?pipelineStateCache.EffectProgramCache.Instantiate(Tuple.Create(effectBytecode, depthClampEmulation)) : null;
var rootSignature = pipelineStateDescription.RootSignature;
if (rootSignature != null && effectBytecode != null)
{
ResourceBinder.Compile(graphicsDevice, rootSignature.EffectDescriptorSetReflection, effectBytecode);
}
// Vertex attributes
if (pipelineStateDescription.InputElements != null)
{
var vertexAttribs = new List <VertexAttrib>();
foreach (var inputElement in pipelineStateDescription.InputElements)
{
// Query attribute name from effect
var attributeName = "a_" + inputElement.SemanticName + inputElement.SemanticIndex;
int attributeIndex;
if (!EffectProgram.Attributes.TryGetValue(attributeName, out attributeIndex))
{
continue;
}
var vertexElementFormat = VertexAttrib.ConvertVertexElementFormat(inputElement.Format);
vertexAttribs.Add(new VertexAttrib(
inputElement.InputSlot,
attributeIndex,
vertexElementFormat.Size,
vertexElementFormat.Type,
vertexElementFormat.Normalized,
inputElement.AlignedByteOffset));
}
VertexAttribs = pipelineStateCache.VertexAttribsCache.Instantiate(vertexAttribs.ToArray());
}
}
public EffectProgram GetOrCreateShader(GraphicsDevice graphicsDevice, EffectBytecode bytecode)
{
lock (ShaderLibrary)
{
EffectProgram effectProgram;
if (!ShaderLibrary.TryGetValue(bytecode, out effectProgram))
{
effectProgram = new EffectProgram(graphicsDevice, bytecode);
ShaderLibrary.Add(bytecode, effectProgram);
}
return(effectProgram);
}
}
public EffectProgram GetOrCreateShader(GraphicsDevice graphicsDevice, EffectBytecode bytecode)
{
lock (ShaderLibrary)
{
EffectProgram effectProgram;
if (!ShaderLibrary.TryGetValue(bytecode, out effectProgram))
{
effectProgram = new EffectProgram(graphicsDevice, bytecode);
ShaderLibrary.Add(bytecode, effectProgram);
}
return effectProgram;
}
}
private void Initialize(ParameterCollection usedParameters)
{
program = EffectProgram.New(graphicsDeviceDefault, bytecode);
reflection = program.Reflection;
// prepare resource bindings used internally
resourceBindings = new EffectParameterResourceBinding[reflection.ResourceBindings.Count];
for (int i = 0; i < resourceBindings.Length; i++)
{
resourceBindings[i].Description = reflection.ResourceBindings[i];
}
defaultParameters = new ParameterCollection();
inputSignature = program.InputSignature;
LoadDefaultParameters();
}
