/// <summary>
/// Creates a new instance of <see cref="D3D10EffectPass"/>.
/// </summary>
/// <param name="parent">The implementation parent.</param>
/// <param name="effect">The D3D10 effect so we can query for variables.</param>
/// <param name="pass">The D3D10 pass.</param>
internal D3D10EffectPass(D3D10EffectImplementation parent, D3D.Effect effect, D3D.EffectPass pass)
{
_pass = pass;
_renderer = parent.Renderer;
D3D.EffectPassDescription desc = pass.Description;
_name = desc.Name;
_layoutMap = new InputLayoutMap(_renderer, desc.Signature);
//Fetch annotations
int annoCount = desc.AnnotationCount;
_annotations = new D3D10EffectAnnotationCollection();
for (int i = 0; i < annoCount; i++)
{
D3D.EffectVariable anno = _pass.GetAnnotationByIndex(i);
D3D.EffectVariableDescription annoDesc = anno.Description;
D3D.EffectVariable annoVar = anno.AsString();
if (annoVar != null)
{
_annotations.Add(new D3D10EffectAnnotation(annoVar, annoDesc.Name, annoDesc.Semantic, EffectParameterClass.Object, EffectParameterType.String));
continue;
}
annoVar = anno.AsScalar();
if (annoVar != null)
{
_annotations.Add(new D3D10EffectAnnotation(annoVar, annoDesc.Name, annoDesc.Semantic, EffectParameterClass.Scalar, EffectParameterType.Unknown));
continue;
}
annoVar = anno.AsMatrix();
if (annoVar != null)
{
_annotations.Add(new D3D10EffectAnnotation(annoVar, annoDesc.Name, annoDesc.Semantic, EffectParameterClass.Matrix, EffectParameterType.Unknown));
continue;
}
annoVar = anno.AsVector();
if (annoVar != null)
{
_annotations.Add(new D3D10EffectAnnotation(annoVar, annoDesc.Name, annoDesc.Semantic, EffectParameterClass.Vector, EffectParameterType.Unknown));
}
}
//Now to reflect the parameters and start adding them to the shader
D3D.EffectPassShaderDescription vertexShaderDesc = pass.VertexShaderDescription;
D3D.EffectShaderVariable vertexShaderVar = vertexShaderDesc.Variable;
ParseShader(parent, effect, vertexShaderVar);
ParseShader(parent, effect, pass.PixelShaderDescription.Variable);
//And the standard input layout
CreateInputLayout(vertexShaderVar, vertexShaderDesc.Index);
}
private void CreateInputLayout(D3D.EffectShaderVariable shaderVar, int shaderIndex)
{
D3D.ShaderDescription shaderDesc;
shaderVar.GetShaderDescription(shaderIndex, out shaderDesc);
int paramCount = shaderDesc.InputParameterCount;
//Dispose of the description's bytecode/sig...bytecode will be reported as a leak in ObjectTable
shaderDesc.Bytecode.Dispose();
shaderDesc.Signature.Dispose();
VertexElement[] elements = new VertexElement[paramCount];
D3D.ShaderParameterDescription desc;
int offset = 0;
for (int i = 0; i < paramCount; i++)
{
shaderVar.GetInputParameterDescription(shaderIndex, i, out desc);
elements[i] = CreateVertexElement(desc, ref offset);
}
_layoutMap.CreateLayout(new VertexDeclaration(elements));
}
private static void ParseShader(D3D10EffectImplementation parent, D3D.Effect effect, D3D.EffectShaderVariable shaderVar)
{
D3D.EffectVariable testElem = shaderVar.GetElement(0);
if (testElem == null)
{
if (shaderVar.IsValid)
{
D3D.ShaderDescription shDesc;
shaderVar.GetShaderDescription(0, out shDesc);
D3DC.ShaderReflection reflect = new D3DC.ShaderReflection(shDesc.Bytecode);
ParseShaderParameters(parent, effect, reflect);
//Dispose of the reflection variable *and* the bytecode/signature of the shader desc...bytecode will reported as a leaked in ObjectTable
reflect.Dispose();
shDesc.Signature.Dispose();
shDesc.Bytecode.Dispose();
}
}
else
{
int k = 1;
while ((testElem = shaderVar.GetElement(k)) != null)
{
if (testElem.IsValid)
{
D3D.ShaderDescription shDesc;
testElem.AsShader().GetShaderDescription(0, out shDesc);
D3DC.ShaderReflection reflect = new D3DC.ShaderReflection(shDesc.Bytecode);
ParseShaderParameters(parent, effect, reflect);
//Dispose of the reflection variable *and* the bytecode/signature of the shader desc...bytecode will reported as a leaked in ObjectTable
reflect.Dispose();
shDesc.Signature.Dispose();
shDesc.Bytecode.Dispose();
}
k++;
}
}
}
