86 lines
1.7 KiB
C#
86 lines
1.7 KiB
C#
using System;
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using System.Collections.Generic;
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using OpenTK.Graphics.OpenGL4;
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namespace bnhdemo
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{
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public class TextureManager
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{
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Dictionary<int, Texture> textures;
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Texture defTexture;
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public TextureManager()
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{
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textures = new Dictionary<int, Texture>();
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createDefaultTexture();
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}
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private void createDefaultTexture()
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{
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defTexture = new Texture(128, 128);
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for (int n = 0; n < 128;n++){
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defTexture.setPixel(0, n, 0x00FFFF00);
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defTexture.setPixel(n, 0, 0x00FFFF00);
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defTexture.setPixel(127, n, 0x00FFFF00);
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defTexture.setPixel(n, 127, 0x00FFFF00);
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}
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addTexture(defTexture);
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}
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public int addTexture(Texture t)
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{
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int id = GL.GenTexture();
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GL.BindTexture(TextureTarget.Texture2D, id);
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GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, t.Width, t.Height, 0, PixelFormat.Rgba, PixelType.Byte, t.Data);
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GL.GenerateMipmap(GenerateMipmapTarget.Texture2D);
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textures.Add(id, t);
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return id;
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}
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public class Texture
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{
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int width,
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height;
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UInt32[] data;
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public Texture(int width,int height)
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{
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this.width = width;
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this.height = height;
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this.data = new UInt32[width * height];
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}
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public UInt32[] Data {
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get { return this.data; }
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}
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public int Width
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{
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get { return this.width; }
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}
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public int Height {
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get { return this.height; }
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}
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public UInt32 getPixel(int x,int y){
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return data[x + (y * width)];
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}
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public void setPixel(int x, int y, UInt32 rgba)
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{
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data[x + (y * width)] = rgba;
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}
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public void setPixel(int x, int y,uint r,uint g,uint b,uint a)
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{
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data[x + (y * width)] = (r << 0) | (g << 8) | (b << 16) | (a << 24);
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}
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}
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}
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}
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