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stgsharp/StgSharp.Common/Graphics/OpenGL/Buffer/EBO.cs
T

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3.2 KiB
C#

//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="EBO.cs"
// Project: StgSharp
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the “Software”), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software,
// and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and
// this permission notice shall be included in all copies
// or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”,
// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH
// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using StgSharp.Graphics;
using StgSharp.Graphics.OpenGL;
using StgSharp.Internal.OpenGL;
using StgSharp.Mathematics;
using System;
using System.Collections.Generic;
using System.Numerics;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Text;
namespace StgSharp.Graphics.OpenGL
{
/// <summary>
/// A collection of handle to Element BufferHandle Object in OpenglFunc. Each <see
/// langword="uint" /> value indexed from instance of this class this is the only handle to
/// one Element BufferHandle Object.
/// </summary>
public sealed unsafe class ElementBuffer : GlBufferObjectBase
{
internal ElementBuffer(int n, glRender binding)
: base(binding)
{
_bufferHandle = GL.GenBuffers(n);
}
public sealed override void Bind(int index)
{
GL.BindBuffer(BufferType.ElementArrayBuffer, _bufferHandle[index]);
}
public void SetValue<T>(int index, T[] bufferArray, BufferUsage usage)
where T: unmanaged, INumber<T>
{
GL.BindBuffer(BufferType.ElementArrayBuffer, _bufferHandle[index]);
GL.SetBufferData<T>(BufferType.ElementArrayBuffer, bufferArray, usage);
}
public void SetValue<T>(int index, ReadOnlySpan<T> bufferSpan, BufferUsage usage)
where T: unmanaged, INumber<T>
{
GL.BindBuffer(BufferType.ElementArrayBuffer, _bufferHandle[index]);
GL.SetBufferData<T>(BufferType.ElementArrayBuffer, bufferSpan, usage);
}
protected sealed override void Dispose(bool disposing)
{
if (disposing) {
GL.DeleteBuffers(_bufferHandle);
}
}
}
}