internal void SetData(DataRectangle data, int mipLevel)
{
if (mipLevel >= this.MipLevels)
{
throw new ArgumentOutOfRangeException("MipLevel exceeds the amount of mip levels.");
}
if (mipLevel < 0)
{
throw new ArgumentOutOfRangeException("MipLevel must not be smaller than zero.");
}
if (data.Size < 0)
{
throw new ArgumentOutOfRangeException("ImageSize must not be smaller than zero.");
}
var format = EnumConverter.Convert(Format);
int width = Width / (int)Math.Pow(2, mipLevel);
int height = Height / (int)Math.Pow(2, mipLevel);
if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.None)
{
graphicsDevice.BindManager.SetTexture(this, 0);
if (!TextureFormatHelper.IsCompressed(Format))
{
GL.TexSubImage2D(TextureTarget.Texture2D, mipLevel, 0, 0, width, height, format.Item2, format.Item3, data.Pointer);
}
else
{
if (isInitialized)
{
GL.CompressedTexSubImage2D(TextureTarget.Texture2D, mipLevel, 0, 0, width, height, format.Item2, data.Size, data.Pointer);
}
else
{
GL.CompressedTexImage2D(TextureTarget.Texture2D, mipLevel, format.Item1, width, height, 0, data.Size, data.Pointer);
}
}
}
else if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.Extension)
{
if (!TextureFormatHelper.IsCompressed(Format))
{
Ext.TextureSubImage2D(TextureID, OpenTK.Graphics.OpenGL.TextureTarget.Texture2D, mipLevel, 0, 0, width, height, (OpenTK.Graphics.OpenGL.PixelFormat)format.Item2, (OpenTK.Graphics.OpenGL.PixelType)format.Item3, data.Pointer);
}
else
{
if (isInitialized)
{
Ext.CompressedTextureSubImage2D(TextureID, OpenTK.Graphics.OpenGL.TextureTarget.Texture2D, mipLevel, 0, 0, width, height, (OpenTK.Graphics.OpenGL.PixelFormat)format.Item2, data.Size, data.Pointer);
}
else
{
Ext.CompressedTextureImage2D(TextureID, OpenTK.Graphics.OpenGL.TextureTarget.Texture2D, mipLevel, (OpenTK.Graphics.OpenGL.ExtDirectStateAccess)format.Item1, width, height, 0, data.Size, data.Pointer);
}
}
}
else if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.Core)
{
//OpenGL 4.5
}
graphicsDevice.CheckGLError("Texture2D SetData");
}