public GL_Surface(string filename)
{
mDisplay = Display.Impl as GL_Display;
mState = mDisplay.State;
mFilename = filename;
Load();
}
public GL_Surface(Stream st)
{
mDisplay = Display.Impl as GL_Display;
mState = mDisplay.State;
// Load The Bitmap
Drawing.Bitmap sourceImage = new Drawing.Bitmap(st);
LoadFromBitmap(sourceImage);
}
private GL_Surface(int textureID, Rectangle sourceRect, Size textureSize)
{
mDisplay = Display.Impl as GL_Display;
mState = mDisplay.State;
AddTextureRef(textureID);
mSourceRect = sourceRect;
mTextureSize = textureSize;
mTexCoord = GetTextureCoords(mSourceRect);
}
public GL_Surface(Size size)
{
mDisplay = Display.Impl as GL_Display;
mState = mDisplay.State;
mSourceRect = new Rectangle(Point.Empty, size);
mTextureSize = new Size(NextPowerOfTwo(size.Width), NextPowerOfTwo(size.Height));
//int[] array = new int[1];
//GL.GenTextures(1, array);
int textureID;
GL.GenTextures(1, out textureID);
AddTextureRef(textureID);
IntPtr fake = IntPtr.Zero;
try
{
fake = Marshal.AllocHGlobal(mTextureSize.Width * mTextureSize.Height * Marshal.SizeOf(typeof(int)));
// Typical Texture Generation Using Data From The Bitmap
GL.BindTexture(TextureTarget.Texture2D, mTextureID);
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba,
mTextureSize.Width, mTextureSize.Height, 0, OTKPixelFormat.Rgba,
PixelType.UnsignedByte, fake);
mTexCoord = GetTextureCoords(mSourceRect);
}
finally
{
if (fake != IntPtr.Zero)
{
Marshal.FreeHGlobal(fake);
}
}
}
public override void Initialize()
{
mState = new GLState();
Report("OpenTK / OpenGL driver instantiated for display.");
}
public GLDrawBuffer(GLState state)
{
mState = state;
SetBufferSize(1000);
}