60 lines
1.6 KiB
C#
60 lines
1.6 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.Drawing;
|
|
using System.Runtime.InteropServices;
|
|
using OpenRA.FileFormats.Graphics;
|
|
using Tao.OpenGl;
|
|
|
|
namespace OpenRA.Renderer.Cg
|
|
{
|
|
public class VertexBuffer<T> : IVertexBuffer<T>
|
|
where T : struct
|
|
{
|
|
int buffer;
|
|
|
|
public VertexBuffer(GraphicsDevice dev, int size)
|
|
{
|
|
Gl.glGenBuffers(1, out buffer);
|
|
GraphicsDevice.CheckGlError();
|
|
Bind();
|
|
Gl.glBufferData(Gl.GL_ARRAY_BUFFER,
|
|
new IntPtr(Marshal.SizeOf(typeof(T)) * size),
|
|
new T[ size ],
|
|
Gl.GL_DYNAMIC_DRAW);
|
|
GraphicsDevice.CheckGlError();
|
|
}
|
|
|
|
void FinalizeInner() { Gl.glDeleteBuffers( 1, ref buffer ); }
|
|
~VertexBuffer() { Game.RunAfterTick( FinalizeInner ); }
|
|
|
|
public void SetData(T[] data, int length)
|
|
{
|
|
Bind();
|
|
Gl.glBufferSubData(Gl.GL_ARRAY_BUFFER,
|
|
IntPtr.Zero,
|
|
new IntPtr(Marshal.SizeOf(typeof(T)) * length),
|
|
data);
|
|
GraphicsDevice.CheckGlError();
|
|
}
|
|
|
|
public void Bind()
|
|
{
|
|
Gl.glBindBuffer(Gl.GL_ARRAY_BUFFER, buffer);
|
|
GraphicsDevice.CheckGlError();
|
|
Gl.glVertexPointer(3, Gl.GL_FLOAT, Marshal.SizeOf(typeof(T)), IntPtr.Zero);
|
|
GraphicsDevice.CheckGlError();
|
|
Gl.glTexCoordPointer(4, Gl.GL_FLOAT, Marshal.SizeOf(typeof(T)), new IntPtr(12));
|
|
GraphicsDevice.CheckGlError();
|
|
}
|
|
}
|
|
}
|