56 lines
2.1 KiB
C#
56 lines
2.1 KiB
C#
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using OpenTK.Graphics.OpenGL4;
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using OpenTK.Mathematics;
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using System.Runtime.CompilerServices;
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namespace SemiColinGames;
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public class Texture : IDisposable {
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public int Handle;
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public Vector2i Size;
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private static int maxHandle = -1;
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private bool disposedValue = false;
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public Texture(Image<Rgba32> image) {
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Size = new Vector2i(image.Width, image.Height);
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byte[] pixelBytes = new byte[Size.X * Size.Y * Unsafe.SizeOf<Rgba32>()];
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image.CopyPixelDataTo(pixelBytes);
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Handle = GL.GenTexture();
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if (Handle > maxHandle) {
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// Console.WriteLine("GL.GenTexture #" + Handle);
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maxHandle = Handle;
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}
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GL.ActiveTexture(TextureUnit.Texture0);
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GL.BindTexture(TextureTarget.Texture2D, Handle);
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GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, Size.X, Size.Y, 0, PixelFormat.Rgba, PixelType.UnsignedByte, pixelBytes);
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//GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int) TextureMinFilter.LinearMipmapLinear);
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GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int) TextureMinFilter.Linear);
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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.ClampToBorder);
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GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int) TextureWrapMode.ClampToBorder);
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float[] borderColor = { 0.0f, 0.0f, 0.0f, 1.0f };
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GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureBorderColor, borderColor);
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// FIXME: should we use mipmaps?
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//GL.GenerateMipmap(GenerateMipmapTarget.Texture2D);
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}
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protected virtual void Dispose(bool disposing) {
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if (!disposedValue) {
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GL.DeleteTexture(Handle);
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disposedValue = true;
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}
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}
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~Texture() {
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if (!disposedValue) {
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Console.WriteLine("~Texture(): resource leak? Dispose() should be called manually.");
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}
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}
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public void Dispose() {
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Dispose(true);
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GC.SuppressFinalize(this);
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}
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}
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