41 lines
1.5 KiB
C#
41 lines
1.5 KiB
C#
using OpenTK.Graphics.OpenGL4;
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using StbImageSharp;
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namespace VoxelEngine.Rendering;
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public sealed class Texture : IDisposable
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{
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private readonly int _handle;
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public int Width { get; }
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public int Height { get; }
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public Texture(string path)
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{
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this._handle = GL.GenTexture();
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GL.BindTexture(TextureTarget.Texture2D, this._handle);
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StbImage.stbi_set_flip_vertically_on_load(1);
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using FileStream stream = File.OpenRead(path);
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ImageResult image = ImageResult.FromStream(stream, ColorComponents.RedGreenBlueAlpha);
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this.Width = image.Width;
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this.Height = image.Height;
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GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba,
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image.Width, image.Height, 0, PixelFormat.Rgba, PixelType.UnsignedByte, image.Data);
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GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Nearest);
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GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Nearest);
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GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToEdge);
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GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToEdge);
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}
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public void Use(TextureUnit unit = TextureUnit.Texture0)
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{
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GL.ActiveTexture(unit);
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GL.BindTexture(TextureTarget.Texture2D, this._handle);
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}
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public void Dispose() => GL.DeleteTexture(this._handle);
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}
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