100 lines
2.8 KiB
C#
100 lines
2.8 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2010 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation. For more information,
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* see LICENSE.
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*/
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#endregion
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using System;
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using System.IO;
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using OpenRA.FileFormats;
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using OpenRA.FileFormats.Graphics;
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using Tao.OpenGl;
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using System.Text;
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namespace OpenRA.Renderer.Glsl
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{
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public class Shader : IShader
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{
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int program;
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string type;
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public Shader(GraphicsDevice dev, string type)
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{
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this.type = type;
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Console.WriteLine("Loading shader: {0}",type);
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// Vertex shader
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string vertexCode;
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using (var file = new StreamReader(FileSystem.Open("glsl{0}{1}.vert".F(Path.DirectorySeparatorChar, type))))
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vertexCode = file.ReadToEnd();
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int v = Gl.glCreateShader(Gl.GL_VERTEX_SHADER);
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GraphicsDevice.CheckGlError();
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Gl.glShaderSource(v,1,new string[]{vertexCode},null);
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GraphicsDevice.CheckGlError();
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Gl.glCompileShader(v);
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GraphicsDevice.CheckGlError();
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// Fragment shader
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string fragmentCode;
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using (var file = new StreamReader(FileSystem.Open("glsl{0}rgba.frag".F(Path.DirectorySeparatorChar, type))))
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fragmentCode = file.ReadToEnd();
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int f = Gl.glCreateShader(Gl.GL_FRAGMENT_SHADER);
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GraphicsDevice.CheckGlError();
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Gl.glShaderSource(f,1,new string[]{fragmentCode},null);
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GraphicsDevice.CheckGlError();
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Gl.glCompileShader(f);
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GraphicsDevice.CheckGlError();
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// Assemble program
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program = Gl.glCreateProgram();
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GraphicsDevice.CheckGlError();
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Gl.glAttachShader(program,v);
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GraphicsDevice.CheckGlError();
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Gl.glAttachShader(program,f);
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GraphicsDevice.CheckGlError();
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Gl.glLinkProgram(program);
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StringBuilder foo = new StringBuilder();
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int[] l = new int[1];
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System.Text.StringBuilder log = new System.Text.StringBuilder(4024);
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Gl.glGetProgramInfoLog(program,4024,l,log);
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Console.WriteLine(log.ToString());
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GraphicsDevice.CheckGlError();
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}
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public void Render(Action a)
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{
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GraphicsDevice.CheckGlError();
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Gl.glUseProgram(program);
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GraphicsDevice.CheckGlError();
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Console.WriteLine("rendering");
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a();
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GraphicsDevice.CheckGlError();
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Gl.glUseProgram(0);
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GraphicsDevice.CheckGlError();
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}
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public void SetValue(string name, ITexture t)
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{
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}
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public void SetValue(string name, float x, float y)
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{
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GraphicsDevice.CheckGlError();
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Console.WriteLine("setting value {0} to {1},{2} in {3}",name,x,y,type);
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int param = Gl.glGetUniformLocation(program, name);
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GraphicsDevice.CheckGlError();
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Gl.glUniform2f(param,x,y);
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GraphicsDevice.CheckGlError();
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}
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public void Commit() { }
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}
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}
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