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UltimateZoneBuilder/Source/Rendering/D3DShader.cs

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#region ================== Copyright (c) 2007 Pascal vd Heiden
/*
* Copyright (c) 2007 Pascal vd Heiden, www.codeimp.com
* This program is released under GNU General Public License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#endregion
#region ================== Namespaces
using System;
using System.Collections;
using System.Collections.Generic;
using System.Globalization;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Reflection;
using System.Drawing;
using System.ComponentModel;
using CodeImp.DoomBuilder.Map;
using SlimDX.Direct3D9;
using SlimDX;
using CodeImp.DoomBuilder.Geometry;
using System.Drawing.Imaging;
#endregion
namespace CodeImp.DoomBuilder.Rendering
{
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internal abstract class D3DShader
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{
#region ================== Constants
#endregion
#region ================== Variables
// The manager
protected ShaderManager manager;
// The effect
protected Effect effect;
// The vertex declaration
protected VertexDeclaration vertexdecl;
// Disposing
protected bool isdisposed = false;
#endregion
#region ================== Properties
// Disposing
public bool IsDisposed { get { return isdisposed; } }
#endregion
#region ================== Constructor / Disposer
// Constructor
public D3DShader(ShaderManager manager)
{
// Initialize
this.manager = manager;
// We have no destructor
GC.SuppressFinalize(this);
}
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// Disposer
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public virtual void Dispose()
{
// Not already disposed?
if(!isdisposed)
{
// Clean up
manager = null;
if(effect != null) effect.Dispose();
vertexdecl.Dispose();
// Done
isdisposed = true;
}
}
#endregion
#region ================== Methods
// This loads an effect
protected Effect LoadEffect(string fxfile)
{
Effect fx;
string errors;
Stream fxdata;
// Return null when not using shaders
if(!manager.Enabled) return null;
// Load the resource
fxdata = General.ThisAssembly.GetManifestResourceStream("CodeImp.DoomBuilder.Resources." + fxfile);
fxdata.Seek(0, SeekOrigin.Begin);
try
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{
// Compile effect
fx = Effect.FromStream(General.Map.Graphics.Device, fxdata, null, null, null, ShaderFlags.None, null, out errors);
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if((errors != null) && (errors != ""))
{
throw new Exception("Errors in effect file " + fxfile + ": " + errors);
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}
}
catch(Exception)
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{
// Compiling failed, try with debug information
try
{
// Compile effect
fx = Effect.FromStream(General.Map.Graphics.Device, fxdata, null, null, null, ShaderFlags.Debug, null, out errors);
if((errors != null) && (errors != ""))
{
throw new Exception("Errors in effect file " + fxfile + ": " + errors);
}
}
catch(Exception e)
{
// No debug information, just crash
throw new Exception(e.GetType().Name + " while loading effect " + fxfile + ": " + e.Message);
}
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}
fxdata.Dispose();
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// Set the technique to use
fx.Technique = manager.ShaderTechnique;
// Return result
return fx;
}
// This applies the shader
public void Begin()
{
// Set vertex declaration
General.Map.Graphics.Device.VertexDeclaration = vertexdecl;
// Set effect
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if(manager.Enabled && General.Settings.QualityDisplay) effect.Begin(FX.DoNotSaveState);
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}
// This begins a pass
public void BeginPass(int index)
{
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if(manager.Enabled && General.Settings.QualityDisplay) effect.BeginPass(index);
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}
// This ends a pass
public void EndPass()
{
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if(manager.Enabled && General.Settings.QualityDisplay) effect.EndPass();
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}
// This ends te shader
public void End()
{
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if(manager.Enabled && General.Settings.QualityDisplay) effect.End();
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}
// This applies properties during a pass
public void ApplySettings()
{
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if(manager.Enabled && General.Settings.QualityDisplay) effect.CommitChanges();
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}
#endregion
}
}