291 lines
12 KiB
C#
291 lines
12 KiB
C#
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// Copyright (c) 2010-2014 SharpDX - Alexandre Mutel
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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using System;
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using System.Reflection;
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using System.Runtime.InteropServices;
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using SharpDX.Mathematics.Interop;
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namespace SharpDX.Direct2D1
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{
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internal partial class PropertyBinding
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{
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private NativeGetSet nativeGetSet;
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protected PropertyBinding()
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{
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}
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/// <summary>
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/// Gets the type of the property.
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/// </summary>
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public string TypeName
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{
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get
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{
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return PropertyTypeHelper.ConvertToString(Attribute.Type);
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}
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}
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public PropertyBindingAttribute Attribute { get; private set; }
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public static PropertyBinding Get(Type customEffectType, PropertyInfo propertyInfo)
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{
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var bindingAttr = Utilities.GetCustomAttribute<PropertyBindingAttribute>(propertyInfo, true);
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if (bindingAttr == null)
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return null;
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var binding = new PropertyBinding {Attribute = bindingAttr};
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var propType = propertyInfo.PropertyType;
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var effectPropType = bindingAttr.BindingType;
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// Handle native types.
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if(effectPropType == PropertyType.Unknown)
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{
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var propTypeName = propType.Name;
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if(propType == typeof(int))
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{
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binding.nativeGetSet = new NativeGetSetValue<int>(customEffectType, propertyInfo);
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effectPropType = PropertyType.Int32;
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}
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else if(propType == typeof(float))
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{
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binding.nativeGetSet = new NativeGetSetValue<float>(customEffectType, propertyInfo);
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effectPropType = PropertyType.Float;
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}
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else if(propType == typeof(uint))
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{
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binding.nativeGetSet = new NativeGetSetValue<uint>(customEffectType, propertyInfo);
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effectPropType = PropertyType.UInt32;
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}
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else if(propType == typeof(bool))
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{
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// For bool, we are using int as a transient value
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binding.nativeGetSet = new NativeGetSetValue<int>(customEffectType, propertyInfo);
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effectPropType = PropertyType.Bool;
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}
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else if (propTypeName.Contains("Vector2")) // Use string property name to allow external types (Mathematics, System Numerics...etc.)
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{
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binding.nativeGetSet = new NativeGetSetValue<RawVector2>(customEffectType, propertyInfo);
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effectPropType = PropertyType.Vector2;
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}
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else if(propTypeName.Contains("Vector3"))
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{
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binding.nativeGetSet = new NativeGetSetValue<RawVector3>(customEffectType, propertyInfo);
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effectPropType = PropertyType.Vector3;
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}
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else if (propTypeName.Contains("RectangleF"))
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{
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binding.nativeGetSet = new NativeGetSetValue<RawRectangleF>(customEffectType, propertyInfo);
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effectPropType = PropertyType.Vector4;
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}
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else if(propTypeName.Contains("Vector4"))
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{
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binding.nativeGetSet = new NativeGetSetValue<RawVector4>(customEffectType, propertyInfo);
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effectPropType = PropertyType.Vector4;
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}
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else if(propTypeName.Contains("Color3"))
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{
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binding.nativeGetSet = new NativeGetSetValue<RawColor3>(customEffectType, propertyInfo);
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effectPropType = PropertyType.Vector3;
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}
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else if(propTypeName.Contains("Color4"))
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{
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binding.nativeGetSet = new NativeGetSetValue<RawColor4>(customEffectType, propertyInfo);
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effectPropType = PropertyType.Vector4;
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}
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else if(propTypeName.Contains("Matrix3x2"))
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{
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binding.nativeGetSet = new NativeGetSetValue<RawMatrix3x2>(customEffectType, propertyInfo);
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effectPropType = PropertyType.Matrix3x2;
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}
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else if(propTypeName.Contains("Matrix5x4"))
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{
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binding.nativeGetSet = new NativeGetSetValue<RawMatrix5x4>(customEffectType, propertyInfo);
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effectPropType = PropertyType.Matrix5x4;
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}
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else if (propTypeName.Contains("Matrix"))
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{
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binding.nativeGetSet = new NativeGetSetValue<RawMatrix>(customEffectType, propertyInfo);
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effectPropType = PropertyType.Matrix4x4;
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}
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else if (Utilities.IsEnum(propType))
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{
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// For enum, we are using int as a transient value
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binding.nativeGetSet = new NativeGetSetValue<int>(customEffectType, propertyInfo);
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effectPropType = PropertyType.Enum;
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}
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else if(Utilities.IsAssignableFrom(typeof(ComObject), propType))
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{
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// For ComObject we are using IntPtr as a transient value
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binding.nativeGetSet = new NativeGetSetValue<IntPtr>(customEffectType, propertyInfo);
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effectPropType = PropertyType.IUnknown;
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}
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//else if (propTypeInfo.IsArray)
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//{
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// // TODO handle arrays
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// // binding.nativeGetSet = new NativeGetSetValue<Matrix5x4>(customEffectType, propertyInfo);
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//}
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else
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{
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throw new SharpDXException(string.Format("Unsupported property type [{0}] with binding [{1}] for custom effect [{2}]",
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propType,
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effectPropType,
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customEffectType));
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}
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}
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// Set the type
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bindingAttr.Type = effectPropType;
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binding.PropertyName = bindingAttr.DisplayName ?? propertyInfo.Name;
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binding.GetFunction = binding.nativeGetSet.GetFunctionPtr;
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binding.SetFunction = binding.nativeGetSet.SetFunctionPtr;
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return binding;
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}
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public abstract class NativeGetSet {
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[UnmanagedFunctionPointer(CallingConvention.StdCall)]
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protected delegate int NativeSetFunctionDelegate(IntPtr thisPtr, IntPtr dataPtr, int dataSize);
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[UnmanagedFunctionPointer(CallingConvention.StdCall)]
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protected delegate int NativeGetFunctionDelegate(IntPtr thisPtr, IntPtr dataPtr, int dataSize, out int actualSize);
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protected NativeGetFunctionDelegate getterNative;
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protected NativeSetFunctionDelegate setterNative;
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protected Type customEffectType;
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protected PropertyInfo propertyInfo;
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public NativeGetSet(Type customEffectType, PropertyInfo propertyInfo)
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{
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this.customEffectType = customEffectType;
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this.propertyInfo = propertyInfo;
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}
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public IntPtr GetFunctionPtr
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{
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get;
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protected set;
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}
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public IntPtr SetFunctionPtr
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{
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get;
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protected set;
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}
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}
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public class NativeGetSetValue<T> : NativeGetSet where T : struct
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{
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private readonly GetValueFastDelegate<T> getter;
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private readonly SetValueFastDelegate<T> setter;
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private static readonly int ValueSize;
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static NativeGetSetValue()
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{
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ValueSize = Utilities.SizeOf<T>();
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}
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public NativeGetSetValue(Type customEffectType, PropertyInfo propertyInfo)
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: base(customEffectType, propertyInfo)
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{
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if (propertyInfo.CanRead)
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{
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getter = Utilities.BuildPropertyGetter<T>(customEffectType, propertyInfo);
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getterNative = new NativeGetFunctionDelegate(NativeGetInt);
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GetFunctionPtr = Marshal.GetFunctionPointerForDelegate(getterNative);
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}
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if (propertyInfo.CanWrite)
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{
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setter = Utilities.BuildPropertySetter<T>(customEffectType, propertyInfo);
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setterNative = new NativeSetFunctionDelegate(NativeSetInt);
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SetFunctionPtr = Marshal.GetFunctionPointerForDelegate(setterNative);
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}
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}
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protected void SetValue(IntPtr sourceValue, out T destValue)
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{
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Utilities.ReadOut<T>(sourceValue, out destValue);
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}
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protected void GetValue(IntPtr destValue, ref T sourceValue)
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{
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Utilities.Write<T>(destValue, ref sourceValue);
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}
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private int NativeSetInt(IntPtr thisPtr, IntPtr dataPtr, int dataSize)
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{
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try
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{
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if(dataPtr == IntPtr.Zero)
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{
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// TODO: Should we throw an exception
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return Result.Ok.Code;
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}
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if(dataSize != ValueSize)
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{
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return Result.InvalidArg.Code;
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}
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// TODO: Check dataSize against <T>?
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var shadow = CustomEffectShadow.ToShadow<CustomEffectShadow>(thisPtr);
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var callback = (CustomEffect)shadow.Callback;
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T value;
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SetValue(dataPtr, out value);
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setter(callback, ref value);
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}
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catch (Exception exception)
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{
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return (int)SharpDX.Result.GetResultFromException(exception);
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}
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return Result.Ok.Code;
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}
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private int NativeGetInt(IntPtr thisPtr, IntPtr dataPtr, int dataSize, out int actualSize)
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{
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actualSize = ValueSize;
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try
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{
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if (dataPtr == IntPtr.Zero)
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{
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// TODO: Should we throw an exception
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return Result.Ok.Code;
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}
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// TODO: Check dataSize against <T>?
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var shadow = CustomEffectShadow.ToShadow<CustomEffectShadow>(thisPtr);
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var callback = (CustomEffect)shadow.Callback;
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T value;
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actualSize = ValueSize;
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getter(callback, out value);
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GetValue(dataPtr, ref value);
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}
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catch (Exception exception)
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{
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return (int)SharpDX.Result.GetResultFromException(exception);
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}
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return Result.Ok.Code;
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}
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}
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}
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}
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