143 lines
5.0 KiB
C#
143 lines
5.0 KiB
C#
//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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// file="ShaderGenerator.cs"
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// Project: StgSharp
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// AuthorGroup: Nitload Space
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// Copyright (c) Nitload Space. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the “Software”), to deal in the Software without restriction,
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// including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software,
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// and to permit persons to whom the Software is furnished to do so,
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// subject to the following conditions:
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//
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// The above copyright notice and
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// this permission notice shall be included in all copies
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// or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED “AS IS”,
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// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH
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// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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using StgSharp.Graphics;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Runtime.Serialization;
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using System.Text;
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using System.Threading.Tasks;
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namespace StgSharp.Graphics.GL.ShaderEdit
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{
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public class ShaderGenerator
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{
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private List<string> codeList;
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private List<ShaderFunction> usedShaderFunctions;
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public Uniform<T> DefineUniform<T>() where T : struct
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{
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throw new NotImplementedException();
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}
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}
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public class ShaderFunction
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{
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private List<string> codeList;
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private List<ShaderParameter> inputList;
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private string name;
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private ShaderParameter outPut;
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public int ParameterCount => inputList.Count;
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public void EmitCall(ShaderFunction function, ShaderParameter outPut, params ShaderParameter[] inputParams)
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{
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if (inputParams.Length != function.ParameterCount)
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{
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// Param list length not equal
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throw new ArgumentException("Provided parameters does not match function's parameter list.");
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}
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if (!ShaderParameter.IsSameType(outPut, function.outPut))
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{
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// Type of returning value not qual
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throw new Exception("Provided parameters does not match function's parameter list.");
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}
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for (int i = 0; i < inputParams.Length; i++)
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{
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if (!ShaderParameter.IsSameType(function.inputList[i], inputParams[i]))
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{
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// Input type not match
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throw new Exception("Provided parameters does not match function's parameter list.");
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}
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}
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string codeLine = string.Empty; // adding a line like " outvalue = Func(input1, input2,...); "
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if (outPut != ShaderParameter.Void)
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{
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codeLine += $"{outPut.name} = ";
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}
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codeLine += $"{function.name}(";
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foreach (ShaderParameter inputParam in inputParams)
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{
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codeLine += inputParam.name;
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}
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codeLine += ");\n";
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codeList.Add(codeLine);
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}
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}
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public class ShaderParameter
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{
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public static readonly ShaderParameter Void = new ShaderParameter(string.Empty, InternalShaderType.Void);
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internal readonly bool isReadOnly;
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internal readonly string name;
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internal readonly InternalShaderType type;
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public ShaderParameter(string name, InternalShaderType type)
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{
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this.name = name;
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this.type = type;
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isReadOnly = false;
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}
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public static bool IsSameType(ShaderParameter param1, ShaderParameter param2)
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{
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if (param1.type != InternalShaderType.Struct)
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{
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return param1.type == param2.type;
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}
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else
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{
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throw new Exception("Struct is currently not supported.");
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}
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}
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}
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public enum InternalShaderType
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{
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#pragma warning disable CS1591
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Struct, Void,
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Int, UInt,
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Float, Double,
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Vector2, Vector3, Vector4,
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VectorD2, VectorD3, VectorD4,
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Matrix2x2, Matrix2x3, Matrix2x4,
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Matrix3x2, Matrix3x3, Matrix3x4,
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Matrix4x2, Matrix4x3, Matrix4x4,
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#pragma warning restore CS1591
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}
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} |