public void LoadFromPath(string texPath)
{
ImageReader loader = new ImageReader();
texPath = texPath.Replace(@"\\", @"/");
texPath = texPath.Replace(@"\", @"/");
path = texPath;
using (System.IO.Stream stream = File.Open(texPath, FileMode.Open))
{
StbSharp.Image image = loader.Read(stream, Stb.STBI_rgb_alpha);
Width = image.Width;
Height = image.Height;
Tex = GL.GenTexture();
GL.BindTexture(TextureTarget.Texture2D, Tex);
GL.TexImage2D(TextureTarget.Texture2D,
0,
PixelInternalFormat.Rgba,
image.Width,
image.Height,
0,
OpenTK.Graphics.OpenGL.PixelFormat.Rgba,
PixelType.UnsignedByte,
image.Data);
GL.GenerateMipmap(GenerateMipmapTarget.Texture2D);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Nearest);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Nearest);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.Repeat);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.Repeat);
GL.BindTexture(TextureTarget.Texture2D, 0);
}
}
public static void SetPixel(this Image img, int x, int y, Color color)
{
int offset = (y * img.Width + x) * img.Comp;
img.Data[offset + 0] = color.R;
img.Data[offset + 1] = color.G;
img.Data[offset + 2] = color.B;
img.Data[offset + 3] = color.A;
}
public static Color GetPixel(this Image img, int x, int y)
{
int offset = (y * img.Width + x) * img.Comp;
var red = img.Data[offset + 0];
var green = img.Data[offset + 1];
var blue = img.Data[offset + 2];
var alpha = img.Data[offset + 3];
return(Color.FromArgb(alpha, red, green, blue));
}
