9cf6ebb986
Fork from OpenRA/OpenRA with one-click launch script (start-ra.cmd) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
63 lines
1.3 KiB
C#
63 lines
1.3 KiB
C#
#region Copyright & License Information
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/*
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* Copyright (c) The OpenRA Developers and Contributors
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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, either version 3 of
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* the License, or (at your option) any later version. For more
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* information, see COPYING.
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*/
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#endregion
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using System;
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using System.Runtime.InteropServices;
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namespace OpenRA.Platforms.Default
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{
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sealed class StaticIndexBuffer : ThreadAffine, IDisposable, IIndexBuffer
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{
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const int UintSize = 4;
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uint buffer;
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bool disposed;
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public StaticIndexBuffer(uint[] indices)
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{
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OpenGL.glGenBuffers(1, out buffer);
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OpenGL.CheckGLError();
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Bind();
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var ptr = GCHandle.Alloc(indices, GCHandleType.Pinned);
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try
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{
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OpenGL.glBufferData(OpenGL.GL_ELEMENT_ARRAY_BUFFER,
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new IntPtr(UintSize * indices.Length),
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ptr.AddrOfPinnedObject(),
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OpenGL.GL_STATIC_DRAW);
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}
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finally
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{
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ptr.Free();
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}
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OpenGL.CheckGLError();
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}
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public void Bind()
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{
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VerifyThreadAffinity();
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OpenGL.glBindBuffer(OpenGL.GL_ELEMENT_ARRAY_BUFFER, buffer);
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OpenGL.CheckGLError();
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}
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public void Dispose()
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{
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if (disposed)
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return;
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disposed = true;
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OpenGL.glDeleteBuffers(1, ref buffer);
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OpenGL.CheckGLError();
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}
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}
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}
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