smrendererv3/SMCode/SM.Base/Textures/Texture.cs
Michel Fedde a603ecc417 18.09.2020
+ Textures
~ Changed 2D coordnate system to lower right as XY+
2020-09-19 15:04:04 +02:00

51 lines
No EOL
1.9 KiB
C#

using System.Drawing;
using System.Drawing.Imaging;
using OpenTK.Graphics.OpenGL4;
using SM.OGL.Texture;
using PixelFormat = System.Drawing.Imaging.PixelFormat;
namespace SM.Base.Textures
{
public class Texture : TextureBase
{
public Bitmap Map;
public Texture(Bitmap map) : this(map, TextureMinFilter.Linear, TextureWrapMode.Repeat) {}
public Texture(Bitmap map, TextureMinFilter filter, TextureWrapMode wrapMode)
{
Map = map;
Filter = filter;
WrapMode = wrapMode;
}
protected override void Compile()
{
base.Compile();
_id = GL.GenTexture();
GL.BindTexture(TextureTarget.Texture2D, _id);
BitmapData data = Map.LockBits(new Rectangle(0, 0, Map.Width, Map.Height), ImageLockMode.ReadOnly,
Map.PixelFormat);
bool transparenz = Map.PixelFormat == PixelFormat.Format32bppArgb;
GL.TexImage2D(TextureTarget.Texture2D, 0,
transparenz ? PixelInternalFormat.Rgba : PixelInternalFormat.Rgb,
data.Width, data.Height, 0,
transparenz ? OpenTK.Graphics.OpenGL4.PixelFormat.Bgra : OpenTK.Graphics.OpenGL4.PixelFormat.Bgr,
PixelType.UnsignedByte, data.Scan0);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)Filter);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)Filter);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int) WrapMode);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int) WrapMode);
GL.GenerateMipmap(GenerateMipmapTarget.Texture2D);
GL.BindTexture(TextureTarget.Texture2D, 0);
Map.UnlockBits(data);
}
}
}