public static void ThrowIfFailed(this CGLErrorCode errorCode, string methodName)
{
if (errorCode != CGLErrorCode.NoError)
{
throw new Exception(methodName + " failed: " + errorCode);
}
}
public CGLPixelFormat(CGLPixelFormatAttribute[] attributes, out int npix)
{
if (attributes == null)
{
throw new ArgumentNullException("attributes");
}
var pixelFormatOut = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(IntPtr)));
var npixOut = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(IntPtr)));
var marshalAttribs = new CGLPixelFormatAttribute [attributes.Length + 1];
Array.Copy(attributes, marshalAttribs, attributes.Length);
CGLErrorCode ret = CGLChoosePixelFormat(marshalAttribs, pixelFormatOut, npixOut);
if (ret != CGLErrorCode.NoError)
{
Marshal.FreeHGlobal(pixelFormatOut);
Marshal.FreeHGlobal(npixOut);
throw new Exception("CGLChoosePixelFormat returned: " + ret);
}
this.handle = Marshal.ReadIntPtr(pixelFormatOut);
npix = Marshal.ReadInt32(npixOut);
Marshal.FreeHGlobal(pixelFormatOut);
Marshal.FreeHGlobal(npixOut);
}
void Initialize(CGLPixelFormatAttribute[] attributes, out int npix)
{
if (attributes == null)
{
throw new ArgumentNullException("attributes");
}
IntPtr pixelFormatOut;
var marshalAttribs = new CGLPixelFormatAttribute [attributes.Length + 1];
Array.Copy(attributes, marshalAttribs, attributes.Length);
CGLErrorCode ret = CGLChoosePixelFormat(marshalAttribs, out pixelFormatOut, out npix);
if (ret != CGLErrorCode.NoError)
{
throw new Exception("CGLChoosePixelFormat returned: " + ret);
}
this.handle = pixelFormatOut;
}
static IntPtr Create(CGLPixelFormatAttribute[] attributes, out int npix)
{
if (attributes is null)
{
throw new ArgumentNullException(nameof(attributes));
}
IntPtr pixelFormatOut;
var marshalAttribs = new CGLPixelFormatAttribute [attributes.Length + 1];
Array.Copy(attributes, marshalAttribs, attributes.Length);
CGLErrorCode ret = CGLChoosePixelFormat(marshalAttribs, out pixelFormatOut, out npix);
if (ret != CGLErrorCode.NoError)
{
throw new Exception("CGLChoosePixelFormat returned: " + ret);
}
return(pixelFormatOut);
}