/// <summary>
/// Sets a <see cref="ConstParameterBinding{T}"/> for the specified effect parameter.
/// </summary>
/// <typeparam name="T">The value type. See <see cref="EffectParameterBinding{T}"/>.</typeparam>
/// <param name="parameter">
/// The effect parameter to which the binding is applied.
/// </param>
/// <param name="value">The value.</param>
/// <returns>The <see cref="ConstParameterBinding{T}"/> that has been set.</returns>
/// <remarks>
/// If an appropriate effect parameter binding for <paramref name="parameter"/> already exists,
/// then the existing binding is updated.
/// </remarks>
/// <exception cref="ArgumentNullException">
/// <paramref name="parameter"/> is <see langword="null"/>.
/// </exception>
/// <exception cref="EffectBindingException">
/// The value type <typeparamref name="T"/> is not supported.
/// </exception>
public ConstParameterBinding <T> Set <T>(EffectParameter parameter, T value)
{
ConstParameterBinding <T> binding;
int index = ParameterBindings.IndexOf(parameter);
if (index >= 0)
{
// An effect parameter binding already exists.
binding = ParameterBindings[index] as ConstParameterBinding <T>;
if (binding != null)
{
// Update existing binding.
binding.Value = value;
}
else
{
// Replace existing binding.
binding = new ConstParameterBinding <T>(Effect, parameter, value);
ParameterBindings[index] = binding;
}
}
else
{
// Create a new binding.
binding = new ConstParameterBinding <T>(Effect, parameter, value);
CheckHint(binding);
ParameterBindings.Add(binding);
}
return(binding);
}
private static void SetDefaultBinding(IGraphicsService graphicsService, EffectEx effectEx, EffectParameter parameter, EffectParameterDescription usage, EffectParameterBindingCollection bindings)
{
Debug.Assert(!bindings.Contains(parameter), "Effect binding already contains a binding for the given effect parameter.");
if (parameter.ParameterClass == EffectParameterClass.Struct)
{
if (parameter.Elements.Count > 0)
{
// ----- Effect parameter is an array of structs. --> Recursively process elements of array.
foreach (EffectParameter element in parameter.Elements)
SetDefaultBinding(graphicsService, effectEx, element, usage, bindings);
}
else
{
// ----- Effect parameter is a struct. --> Recursively process members of struct.
foreach (EffectParameter member in parameter.StructureMembers)
SetDefaultBinding(graphicsService, effectEx, member, usage, bindings);
}
return;
}
// Set ConstParameterBinding using the default value stored in .fx file.
var effect = effectEx.Resource;
object originalValue;
effectEx.OriginalParameterValues.TryGetValue(parameter, out originalValue);
EffectParameterBinding binding = null;
if (parameter.Elements.Count == 0)
{
// ----- Parameter is not an array.
if (parameter.ParameterClass == EffectParameterClass.Scalar)
{
// Scalar values.
if (parameter.ParameterType == EffectParameterType.Bool)
binding = new ConstParameterBinding<bool>(effect, parameter, (bool)originalValue);
else if (parameter.ParameterType == EffectParameterType.Int32)
binding = new ConstParameterBinding<int>(effect, parameter, (int)originalValue);
else if (parameter.ParameterType == EffectParameterType.Single)
binding = new ConstParameterBinding<float>(effect, parameter, (float)originalValue);
}
else if (parameter.ParameterClass == EffectParameterClass.Vector
&& parameter.ParameterType == EffectParameterType.Single)
{
// Vector values.
if (parameter.ColumnCount == 2 || parameter.RowCount == 2)
binding = new ConstParameterBinding<Vector2>(effect, parameter, (Vector2)originalValue);
else if (parameter.ColumnCount == 3 || parameter.RowCount == 3)
binding = new ConstParameterBinding<Vector3>(effect, parameter, (Vector3)originalValue);
else if (parameter.ColumnCount == 4 || parameter.RowCount == 4)
binding = new ConstParameterBinding<Vector4>(effect, parameter, (Vector4)originalValue);
}
else if (parameter.ParameterClass == EffectParameterClass.Matrix
&& parameter.ParameterType == EffectParameterType.Single)
{
// Matrix value.
binding = new ConstParameterBinding<Matrix>(effect, parameter, (Matrix)originalValue);
}
else if (parameter.ParameterClass == EffectParameterClass.Object)
{
// Object values.
if (parameter.ParameterType == EffectParameterType.String)
{
binding = new ConstParameterBinding<string>(effect, parameter, (string)originalValue);
}
else if (parameter.ParameterType == EffectParameterType.Texture)
{
// A texture type but we are not sure which exact type. --> Try different types.
try
{
binding = new ConstParameterBinding<Texture2D>(effect, parameter, graphicsService.GetDefaultTexture2DWhite());
}
catch (Exception)
{
try
{
binding = new ConstParameterBinding<Texture3D>(effect, parameter, graphicsService.GetDefaultTexture3DWhite());
}
catch (Exception)
{
try
{
binding = new ConstParameterBinding<TextureCube>(effect, parameter, graphicsService.GetDefaultTextureCubeWhite());
}
catch (Exception)
{
// Default value for a parameter of type Texture could not be read from Effect.
}
}
}
}
else if (parameter.ParameterType == EffectParameterType.Texture1D)
{
// NOTE: 1D textures are not supported in XNA.
}
else if (parameter.ParameterType == EffectParameterType.Texture2D)
{
binding = new ConstParameterBinding<Texture2D>(effect, parameter, graphicsService.GetDefaultTexture2DWhite());
}
else if (parameter.ParameterType == EffectParameterType.Texture3D)
{
binding = new ConstParameterBinding<Texture3D>(effect, parameter, graphicsService.GetDefaultTexture3DWhite());
}
else if (parameter.ParameterType == EffectParameterType.TextureCube)
{
binding = new ConstParameterBinding<TextureCube>(effect, parameter, graphicsService.GetDefaultTextureCubeWhite());
}
}
}
else
{
// ----- Parameter is array.
int length = parameter.Elements.Count;
Debug.Assert(length > 0, "Effect parameter should be an array.");
// Note: In XNA originalValue is valid. In MonoGame originalValue is null and we have to
// create a new array!
if (parameter.ParameterClass == EffectParameterClass.Scalar)
{
// Scalar value bindings.
if (parameter.ParameterType == EffectParameterType.Bool)
binding = new ConstParameterArrayBinding<bool>(effect, parameter, (bool[])originalValue ?? new bool[parameter.Elements.Count]);
else if (parameter.ParameterType == EffectParameterType.Int32)
binding = new ConstParameterArrayBinding<int>(effect, parameter, (int[])originalValue ?? new int[parameter.Elements.Count]);
else if (parameter.ParameterType == EffectParameterType.Single)
binding = new ConstParameterArrayBinding<float>(effect, parameter, (float[])originalValue ?? new float[parameter.Elements.Count]);
}
else if (parameter.ParameterClass == EffectParameterClass.Vector && parameter.ParameterType == EffectParameterType.Single)
{
if (parameter.ColumnCount == 2 || parameter.RowCount == 2)
binding = new ConstParameterArrayBinding<Vector2>(effect, parameter, (Vector2[])originalValue ?? new Vector2[parameter.Elements.Count]);
else if (parameter.ColumnCount == 3 || parameter.RowCount == 3)
binding = new ConstParameterArrayBinding<Vector3>(effect, parameter, (Vector3[])originalValue ?? new Vector3[parameter.Elements.Count]);
else if (parameter.ColumnCount == 4 || parameter.RowCount == 4)
binding = new ConstParameterArrayBinding<Vector4>(effect, parameter, (Vector4[])originalValue ?? new Vector4[parameter.Elements.Count]);
}
else if (parameter.ParameterClass == EffectParameterClass.Matrix && parameter.ParameterType == EffectParameterType.Single)
{
binding = new ConstParameterArrayBinding<Matrix>(effect, parameter, (Matrix[])originalValue ?? new Matrix[parameter.Elements.Count]);
}
else if (parameter.ParameterClass == EffectParameterClass.Object)
{
// Note: Arrays of strings or textures are not supported in XNA.
}
}
if (binding != null)
bindings.Add(binding);
}
private static bool SetOpaqueDataBinding(Effect effect, EffectParameter parameter, IDictionary<string, object> opaqueData, EffectParameterBindingCollection bindings)
{
Debug.Assert(!bindings.Contains(parameter), "Effect binding already contains a binding for the given effect parameter.");
if (opaqueData == null || opaqueData.Count == 0)
{
// No opaque data.
return false;
}
if (parameter.ParameterClass == EffectParameterClass.Struct)
{
// Structs cannot be set from opaque data.
return false;
}
// Get value from opaque data.
object value;
bool valueFound = opaqueData.TryGetValue(parameter.Name, out value);
if (!valueFound)
return false;
EffectParameterBinding binding = null;
if (parameter.Elements.Count == 0)
{
// ----- Parameter is not an array.
if (parameter.ParameterClass == EffectParameterClass.Scalar)
{
// Scalar value bindings.
if (parameter.ParameterType == EffectParameterType.Bool && ObjectHelper.IsConvertible(value))
binding = new ConstParameterBinding<bool>(effect, parameter, ObjectHelper.ConvertTo<bool>(value, CultureInfo.InvariantCulture));
else if (parameter.ParameterType == EffectParameterType.Int32 && ObjectHelper.IsConvertible(value))
binding = new ConstParameterBinding<int>(effect, parameter, ObjectHelper.ConvertTo<int>(value, CultureInfo.InvariantCulture));
else if (parameter.ParameterType == EffectParameterType.Single && ObjectHelper.IsConvertible(value))
binding = new ConstParameterBinding<float>(effect, parameter, ObjectHelper.ConvertTo<float>(value, CultureInfo.InvariantCulture));
}
else if (parameter.ParameterClass == EffectParameterClass.Vector && parameter.ParameterType == EffectParameterType.Single)
{
if (parameter.ColumnCount == 2 || parameter.RowCount == 2)
{
if (value is Vector2)
binding = new ConstParameterBinding<Vector2>(effect, parameter, (Vector2)value);
else if (value is Vector2F)
binding = new ConstParameterBinding<Vector2F>(effect, parameter, (Vector2F)value);
}
else if (parameter.ColumnCount == 3 || parameter.RowCount == 3)
{
if (value is Vector3)
binding = new ConstParameterBinding<Vector3>(effect, parameter, (Vector3)value);
else if (value is Vector3)
binding = new ConstParameterBinding<Vector3>(effect, parameter, (Vector3)value);
}
else if (parameter.ColumnCount == 4 || parameter.RowCount == 4)
{
if (value is Vector4)
binding = new ConstParameterBinding<Vector4>(effect, parameter, (Vector4)value);
else if (value is Vector4)
binding = new ConstParameterBinding<Vector4>(effect, parameter, (Vector4)value);
}
}
else if (parameter.ParameterClass == EffectParameterClass.Matrix && parameter.ParameterType == EffectParameterType.Single)
{
if (parameter.ColumnCount == 2 && parameter.RowCount == 2)
{
if (value is Matrix22F)
binding = new ConstParameterBinding<Matrix22F>(effect, parameter, (Matrix22F)value);
}
else if (parameter.ColumnCount == 3 && parameter.RowCount == 3)
{
if (value is Matrix)
binding = new ConstParameterBinding<Matrix>(effect, parameter, (Matrix)value);
}
else if (parameter.ColumnCount == 4 || parameter.RowCount == 4)
{
if (value is Matrix)
binding = new ConstParameterBinding<Matrix>(effect, parameter, (Matrix)value);
else if (value is Matrix)
binding = new ConstParameterBinding<Matrix>(effect, parameter, (Matrix)value);
}
}
else if (parameter.ParameterClass == EffectParameterClass.Object)
{
if (parameter.ParameterType == EffectParameterType.String && value is string)
binding = new ConstParameterBinding<string>(effect, parameter, (string)value);
else if (parameter.ParameterType == EffectParameterType.Texture && value is Texture)
binding = new ConstParameterBinding<Texture>(effect, parameter, (Texture)value);
else if (parameter.ParameterType == EffectParameterType.Texture1D && value is Texture)
binding = null; // 1D textures are not supported in XNA.
else if (parameter.ParameterType == EffectParameterType.Texture2D && value is Texture2D)
binding = new ConstParameterBinding<Texture2D>(effect, parameter, (Texture2D)value);
else if (parameter.ParameterType == EffectParameterType.Texture3D && value is Texture3D)
binding = new ConstParameterBinding<Texture3D>(effect, parameter, (Texture3D)value);
else if (parameter.ParameterType == EffectParameterType.TextureCube && value is TextureCube)
binding = new ConstParameterBinding<TextureCube>(effect, parameter, (TextureCube)value);
}
}
else
{
// ----- Parameter is array.
// TODO: We could also check whether the length of the arrays match.
if (parameter.ParameterClass == EffectParameterClass.Scalar)
{
// Scalar value bindings.
if (parameter.ParameterType == EffectParameterType.Bool && IsArray<bool>(value))
binding = new ConstParameterArrayBinding<bool>(effect, parameter, ToBooleanArray(value));
else if (parameter.ParameterType == EffectParameterType.Int32 && IsArray<int>(value))
binding = new ConstParameterArrayBinding<int>(effect, parameter, ToInt32Array(value));
else if (parameter.ParameterType == EffectParameterType.Single && IsArray<float>(value))
binding = new ConstParameterArrayBinding<float>(effect, parameter, ToSingleArray(value));
}
else if (parameter.ParameterClass == EffectParameterClass.Vector &&
parameter.ParameterType == EffectParameterType.Single)
{
if (parameter.ColumnCount == 2 || parameter.RowCount == 2)
{
if (value is Vector2[])
binding = new ConstParameterArrayBinding<Vector2>(effect, parameter, (Vector2[])value);
else if (value is Vector2F[])
binding = new ConstParameterArrayBinding<Vector2F>(effect, parameter, (Vector2F[])value);
}
else if (parameter.ColumnCount == 3 || parameter.RowCount == 3)
{
if (value is Vector3[])
binding = new ConstParameterArrayBinding<Vector3>(effect, parameter, (Vector3[])value);
else if (value is Vector3[])
binding = new ConstParameterArrayBinding<Vector3>(effect, parameter, (Vector3[])value);
}
else if (parameter.ColumnCount == 4 || parameter.RowCount == 4)
{
if (value is Vector4[])
binding = new ConstParameterArrayBinding<Vector4>(effect, parameter, (Vector4[])value);
else if (value is Vector4[])
binding = new ConstParameterArrayBinding<Vector4>(effect, parameter, (Vector4[])value);
}
}
else if (parameter.ParameterClass == EffectParameterClass.Matrix &&
parameter.ParameterType == EffectParameterType.Single)
{
//#if !XBOX
// The type Matrix22F[], Matrix[], Matrix[] caused a MissingMethodException at runtime on Xbox 360 in XNA 3.1.
// See also: EffectParameterBinding<T>.SetValueMethods!
if (parameter.ColumnCount == 2 && parameter.RowCount == 2)
{
if (value is Matrix22F[])
binding = new ConstParameterArrayBinding<Matrix22F>(effect, parameter, (Matrix22F[])value);
}
else if (parameter.ColumnCount == 3 && parameter.RowCount == 3)
{
if (value is Matrix[])
binding = new ConstParameterArrayBinding<Matrix>(effect, parameter, (Matrix[])value);
}
else
//#endif
if (parameter.ColumnCount == 4 || parameter.RowCount == 4)
{
if (value is Matrix[])
binding = new ConstParameterArrayBinding<Matrix>(effect, parameter, (Matrix[])value);
//#if !XBOX
else if (value is Matrix[])
binding = new ConstParameterArrayBinding<Matrix>(effect, parameter, (Matrix[])value);
//#endif
}
}
else if (parameter.ParameterClass == EffectParameterClass.Object)
{
if (parameter.ParameterType == EffectParameterType.String && value is string[])
binding = new ConstParameterArrayBinding<string>(effect, parameter, (string[])value);
// Note: Arrays of textures are not supported in DirectX 9.
}
}
if (binding != null)
{
bindings.Add(binding);
return true;
}
return false;
}
