119 lines
3.4 KiB
C#
119 lines
3.4 KiB
C#
#region Copyright & License Information
|
|
/*
|
|
* Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
|
|
* This file is part of OpenRA, which is free software. It is made
|
|
* available to you under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation. For more information,
|
|
* see COPYING.
|
|
*/
|
|
#endregion
|
|
|
|
using System;
|
|
using System.IO;
|
|
using OpenRA.FileFormats;
|
|
using OpenRA.FileFormats.Graphics;
|
|
using OpenRA.Renderer.SdlCommon;
|
|
|
|
namespace OpenRA.Renderer.Cg
|
|
{
|
|
public class Shader : IShader
|
|
{
|
|
IntPtr effect;
|
|
IntPtr technique;
|
|
GraphicsDevice dev;
|
|
|
|
public Shader(GraphicsDevice dev, string name)
|
|
{
|
|
this.dev = dev;
|
|
string code;
|
|
using (var file = new StreamReader(FileSystem.Open("cg{0}{1}.fx".F(Path.DirectorySeparatorChar, name))))
|
|
code = file.ReadToEnd();
|
|
effect = Tao.Cg.Cg.cgCreateEffect(dev.Context, code, null);
|
|
|
|
if (effect == IntPtr.Zero)
|
|
{
|
|
var err = Tao.Cg.Cg.cgGetErrorString(Tao.Cg.Cg.cgGetError());
|
|
var results = Tao.Cg.Cg.cgGetLastListing(dev.Context);
|
|
throw new InvalidOperationException(
|
|
"Cg compile failed ({0}):\n{1}".F(err, results));
|
|
}
|
|
|
|
technique = Tao.Cg.Cg.cgGetFirstTechnique(effect);
|
|
if (technique == IntPtr.Zero)
|
|
throw new InvalidOperationException("No techniques");
|
|
while (Tao.Cg.Cg.cgValidateTechnique(technique) == 0)
|
|
{
|
|
technique = Tao.Cg.Cg.cgGetNextTechnique(technique);
|
|
if (technique == IntPtr.Zero)
|
|
throw new InvalidOperationException("No valid techniques");
|
|
}
|
|
}
|
|
|
|
public void Render(Action a)
|
|
{
|
|
Tao.Cg.CgGl.cgGLEnableProfile(dev.VertexProfile);
|
|
Tao.Cg.CgGl.cgGLEnableProfile(dev.FragmentProfile);
|
|
|
|
var pass = Tao.Cg.Cg.cgGetFirstPass(technique);
|
|
while (pass != IntPtr.Zero)
|
|
{
|
|
Tao.Cg.Cg.cgSetPassState(pass);
|
|
a();
|
|
Tao.Cg.Cg.cgResetPassState(pass);
|
|
pass = Tao.Cg.Cg.cgGetNextPass(pass);
|
|
}
|
|
|
|
Tao.Cg.CgGl.cgGLDisableProfile(dev.FragmentProfile);
|
|
Tao.Cg.CgGl.cgGLDisableProfile(dev.VertexProfile);
|
|
}
|
|
|
|
public void SetTexture(string name, ITexture t)
|
|
{
|
|
var texture = (Texture)t;
|
|
var param = Tao.Cg.Cg.cgGetNamedEffectParameter(effect, name);
|
|
if (param != IntPtr.Zero && texture != null)
|
|
Tao.Cg.CgGl.cgGLSetupSampler(param, texture.ID);
|
|
}
|
|
|
|
public void SetVec(string name, float x)
|
|
{
|
|
var param = Tao.Cg.Cg.cgGetNamedEffectParameter(effect, name);
|
|
if (param != IntPtr.Zero)
|
|
Tao.Cg.CgGl.cgGLSetParameter1f(param, x);
|
|
}
|
|
|
|
public void SetVec(string name, float x, float y)
|
|
{
|
|
var param = Tao.Cg.Cg.cgGetNamedEffectParameter(effect, name);
|
|
if (param != IntPtr.Zero)
|
|
Tao.Cg.CgGl.cgGLSetParameter2f(param, x, y);
|
|
}
|
|
|
|
public void SetVec(string name, float[] vec, int length)
|
|
{
|
|
var param = Tao.Cg.Cg.cgGetNamedEffectParameter(effect, name);
|
|
if (param == IntPtr.Zero)
|
|
return;
|
|
|
|
switch (length)
|
|
{
|
|
case 1: Tao.Cg.CgGl.cgGLSetParameter1fv(param, vec); break;
|
|
case 2: Tao.Cg.CgGl.cgGLSetParameter2fv(param, vec); break;
|
|
case 3: Tao.Cg.CgGl.cgGLSetParameter3fv(param, vec); break;
|
|
case 4: Tao.Cg.CgGl.cgGLSetParameter4fv(param, vec); break;
|
|
default: throw new InvalidDataException("Invalid vector length");
|
|
}
|
|
}
|
|
|
|
public void SetMatrix(string name, float[] mtx)
|
|
{
|
|
if (mtx.Length != 16)
|
|
throw new InvalidDataException("Invalid 4x4 matrix");
|
|
|
|
var param = Tao.Cg.Cg.cgGetNamedEffectParameter(effect, name);
|
|
if (param != IntPtr.Zero)
|
|
Tao.Cg.CgGl.cgGLSetMatrixParameterfr(param, mtx);
|
|
}
|
|
}
|
|
}
|