internal iPhoneOSGraphicsContext(GraphicsMode mode, IWindowInfo window, IGraphicsContext sharedContext, int major, int minor, GraphicsContextFlags flags)
{
// ignore mode, window
iPhoneOSGraphicsContext shared = null;
var internalSharedContext = sharedContext as OpenTK.Graphics.IGraphicsContextInternal;
if (internalSharedContext != null)
{
shared = internalSharedContext.Implementation as iPhoneOSGraphicsContext;
}
EAGLRenderingAPI version = 0;
if (major == 1 && minor == 1)
{
version = EAGLRenderingAPI.OpenGLES1;
}
else if (major == 2 && minor == 0)
{
version = EAGLRenderingAPI.OpenGLES2;
}
else
{
throw new ArgumentException(string.Format("Unsupported GLES version {0}.{1}.", major, minor));
}
EAGLContext = shared != null && shared.EAGLContext != null
? new EAGLContext(version, shared.EAGLContext.ShareGroup)
: new EAGLContext(version);
contextHandle = new ContextHandle(EAGLContext.Handle);
}
internal iPhoneOSGraphicsContext(ContextHandle handle, IWindowInfo window, IGraphicsContext sharedContext, int major, int minor, GraphicsContextFlags flags)
{
// ignore mode, window
iPhoneOSGraphicsContext shared = sharedContext as iPhoneOSGraphicsContext;
EAGLRenderingAPI version = 0;
if (major == 1 && minor == 1)
{
version = EAGLRenderingAPI.OpenGLES1;
}
else if (major == 2 && minor == 0)
{
version = EAGLRenderingAPI.OpenGLES2;
}
else
{
throw new ArgumentException(string.Format("Unsupported GLES version {0}.{1}.", major, minor));
}
if (handle.Handle == IntPtr.Zero)
{
EAGLContext = shared != null && shared.EAGLContext != null
? new EAGLContext(version, shared.EAGLContext.ShareGroup)
: new EAGLContext(version);
contextHandle = new ContextHandle(EAGLContext.Handle);
}
else
{
EAGLContext = (EAGLContext)Runtime.GetNSObject(handle.Handle);
contextHandle = handle;
}
}