78 lines
2.9 KiB
C#
78 lines
2.9 KiB
C#
using System.Drawing;
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using System.IO;
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using OpenTK.Graphics.OpenGL;
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using OpenTK.Graphics;
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using System;
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namespace RecrownedGTK.Graphics {
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/// <summary>
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/// Represents the texture for any given vertice.
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/// Contains bytes that form the texture.
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/// </summary>
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public class TextureData : IDisposable {
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private bool disposed;
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int handle;
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public readonly int width, height;
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public TextureWrapMode textureWrapModeWidth, textureWrapModeHeight;
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public Color4 borderColor;
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public TextureMinFilter textureMinFilter;
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public TextureMagFilter textureMagFilter;
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/// <summary>
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/// Generates a texture using a byte array of the texture data.
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/// </summary>
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/// <param name="textureData">The byte array representing the texture.</param>
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/// <param name="width">The width of the texture.</param>
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/// <param name="height">The height of the texture.</param>
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public TextureData(byte[] textureData, int width, int height) {
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textureWrapModeHeight = TextureWrapMode.ClampToBorder;
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textureWrapModeWidth = TextureWrapMode.ClampToBorder;
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textureMinFilter = TextureMinFilter.LinearMipmapLinear;
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textureMagFilter = TextureMagFilter.Linear;
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this.width = width;
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this.height = height;
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GenerateTexture(textureData, width, height);
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}
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/// <summary>
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/// Generates a texture in the OpenGL context.
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/// </summary>
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/// <param name="textureData">Byte array representing the texture.</param>
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/// <param name="width">Width of the texture.</param>
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/// <param name="height">Height of the texture.</param>
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private void GenerateTexture(byte[] textureData, int width, int height) {
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if (handle != 0) throw new InvalidOperationException("This texture data already holds a texture.");
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handle = GL.GenTexture();
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Use();
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GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, width, height, 0, PixelFormat.Rgba, PixelType.UnsignedByte, textureData);
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GL.GenerateMipmap(GenerateMipmapTarget.Texture2D);
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}
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/// <summary>
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/// Binds the OpenGL texture.
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/// </summary>
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internal void Use() {
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GL.BindTexture(TextureTarget.Texture2D, handle);
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}
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/// <summary>
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/// Removes texture data from memory.
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/// </summary>
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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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protected virtual void Dispose(bool disposing) {
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if (disposed) return;
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if (disposing) {
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}
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GL.BindTexture(TextureTarget.Texture2D, 0);
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GL.DeleteTexture(handle);
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disposed = true;
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}
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~TextureData() {
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Dispose(false);
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}
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}
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} |