215 lines
6.2 KiB
C#
215 lines
6.2 KiB
C#
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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.Text;
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//using System.Threading.Tasks;
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//using System.Reflection;
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//using OpenTK.Graphics.OpenGL;
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//using Essgee.Exceptions;
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//namespace Essgee.Graphics.Shaders
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//{
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// public class GLSLShader : IDisposable
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// {
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// int vertexShaderObject, fragmentShaderObject, geometryShaderObject;
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// List<string> vertexShaderCode, fragmentShaderCode, geometryShaderCode;
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// readonly int programObject;
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// static readonly string[] uniformSetMethods =
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// {
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// "Uniform1", "Uniform2", "Uniform3", "Uniform4"
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// };
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// static readonly string[] uniformSetMethodsMatrix =
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// {
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// "UniformMatrix2", "UniformMatrix2x3", "UniformMatrix2x4",
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// "UniformMatrix3", "UniformMatrix3x2", "UniformMatrix3x4",
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// "UniformMatrix4", "UniformMatrix4x2", "UniformMatrix4x3"
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// };
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// Dictionary<string, int> uniformLocations;
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// Dictionary<string, dynamic> uniformData;
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// Dictionary<Type, FastInvokeHandler> uniformMethods;
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// bool disposed = false;
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// public GLSLShader()
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// {
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// vertexShaderObject = fragmentShaderObject = geometryShaderObject = -1;
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// programObject = GL.CreateProgram();
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// uniformLocations = new Dictionary<string, int>();
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// uniformData = new Dictionary<string, dynamic>();
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// uniformMethods = new Dictionary<Type, FastInvokeHandler>();
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// }
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// ~GLSLShader()
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// {
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// Dispose(false);
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// }
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// public void Dispose()
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// {
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// Dispose(true);
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// GC.SuppressFinalize(this);
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// }
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// protected virtual void Dispose(bool disposing)
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// {
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// if (disposed)
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// return;
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// if (disposing)
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// {
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// DetachDeleteShader(programObject, vertexShaderObject);
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// DetachDeleteShader(programObject, fragmentShaderObject);
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// DetachDeleteShader(programObject, geometryShaderObject);
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// GL.DeleteProgram(programObject);
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// }
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// disposed = true;
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// }
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// public void SetVertexShaderCode(params string[] shaderCode)
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// {
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// DetachDeleteShader(programObject, vertexShaderObject);
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// vertexShaderObject = GenerateShader(ShaderType.VertexShader, vertexShaderCode = shaderCode.ToList());
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// }
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// public void SetFragmentShaderCode(params string[] shaderCode)
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// {
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// DetachDeleteShader(programObject, fragmentShaderObject);
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// fragmentShaderObject = GenerateShader(ShaderType.FragmentShader, fragmentShaderCode = shaderCode.ToList());
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// }
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// public void SetGeometryShaderCode(params string[] shaderCode)
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// {
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// DetachDeleteShader(programObject, geometryShaderObject);
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// geometryShaderObject = GenerateShader(ShaderType.GeometryShader, geometryShaderCode = shaderCode.ToList());
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// }
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// private int GenerateShader(ShaderType shaderType, List<string> shaderCode)
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// {
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// var handle = GL.CreateShader(shaderType);
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// GL.ShaderSource(handle, shaderCode.Count, shaderCode.ToArray(), shaderCode.Select(x => x.Length).ToArray());
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// GL.CompileShader(handle);
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// GL.GetShaderInfoLog(handle, out string infoLog);
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// GL.GetShader(handle, ShaderParameter.CompileStatus, out int statusCode);
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// if (statusCode != 1)
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// throw new GraphicsException($"Shader compile for {shaderType} failed: {infoLog}");
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// return handle;
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// }
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// private void DetachDeleteShader(int programObject, int shaderObject)
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// {
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// if (shaderObject != -1 && GL.IsShader(shaderObject))
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// {
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// GL.DetachShader(programObject, shaderObject);
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// GL.DeleteShader(shaderObject);
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// }
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// }
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// public void LinkProgram()
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// {
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// LinkProgram(programObject, new int[] { vertexShaderObject, fragmentShaderObject, geometryShaderObject });
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// }
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// private void LinkProgram(int programObject, int[] shaderObjects)
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// {
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// foreach (var shaderObject in shaderObjects.Where(x => x != -1))
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// GL.AttachShader(programObject, shaderObject);
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// GL.LinkProgram(programObject);
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// GL.GetProgramInfoLog(programObject, out string infoLog);
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// GL.GetProgram(programObject, GetProgramParameterName.LinkStatus, out int statusCode);
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// if (statusCode != 1)
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// throw new GraphicsException($"Shader program link failed: {infoLog}");
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// }
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// public void Activate()
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// {
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// if (programObject == -1) throw new GraphicsException("Invalid shader program handle");
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// GL.UseProgram(programObject);
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// }
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// public void SetUniform(string name, dynamic data)
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// {
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// Activate();
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// Type type = data.GetType();
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// if (!uniformLocations.ContainsKey(name))
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// uniformLocations.Add(name, GL.GetUniformLocation(programObject, name));
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// uniformData[name] = data;
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// if (uniformMethods.ContainsKey(type))
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// {
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// uniformMethods[type](null, new object[] { uniformLocations[name], data });
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// }
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// else
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// {
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// foreach (string methodName in uniformSetMethods)
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// {
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// Type[] argTypes = new Type[] { typeof(int), type };
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// MethodInfo methodInfo = typeof(GL).GetMethod(methodName, argTypes);
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// if (methodInfo != null)
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// {
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// uniformMethods[type] = FastMethodInvoker.GetMethodInvoker(methodInfo);
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// uniformMethods[type](null, new object[] { uniformLocations[name], data });
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// return;
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// }
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// }
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// throw new GraphicsException("No Uniform method found");
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// }
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// }
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// public void SetUniformMatrix(string name, bool transpose, dynamic data)
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// {
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// Activate();
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// Type type = data.GetType();
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// if (!uniformLocations.ContainsKey(name))
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// uniformLocations.Add(name, GL.GetUniformLocation(programObject, name));
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// uniformData[name] = data;
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// if (uniformMethods.ContainsKey(type))
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// {
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// uniformMethods[type](null, new object[] { uniformLocations[name], transpose, data });
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// }
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// else
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// {
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// foreach (string methodName in uniformSetMethodsMatrix)
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// {
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// Type[] argTypes = new Type[] { typeof(int), typeof(bool), data.GetType().MakeByRefType() };
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// MethodInfo methodInfo = typeof(GL).GetMethod(methodName, argTypes);
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// if (methodInfo != null)
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// {
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// uniformMethods[type] = FastMethodInvoker.GetMethodInvoker(methodInfo);
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// uniformMethods[type](null, new object[] { uniformLocations[name], transpose, data });
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// return;
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// }
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// }
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// throw new GraphicsException("No UniformMatrix method found");
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// }
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// }
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// public dynamic GetUniform(string name)
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// {
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// if (!uniformData.ContainsKey(name)) throw new ArgumentException();
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// return uniformData[name];
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// }
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// }
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//}
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