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);
}
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);
}
extern static CGLErrorCode CGLChoosePixelFormat (CGLPixelFormatAttribute[] attributes, IntPtr pix, IntPtr npix);
public CGLPixelFormat(CGLPixelFormatAttribute[] attributes, out int npix)
{
Initialize (attributes, out npix);
}
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 extern CGLErrorCode CGLChoosePixelFormat(CGLPixelFormatAttribute[] attributes, out IntPtr /* CGLPixelFormatObj* */ pix, out int /* GLint* */ npix);
public override CGLPixelFormat CopyCGLPixelFormatForDisplayMask (uint mask)
{
// make sure to add a null value
CGLPixelFormatAttribute[] attribs = new CGLPixelFormatAttribute[] {
CGLPixelFormatAttribute.Accelerated,
CGLPixelFormatAttribute.DoubleBuffer, CGLPixelFormatAttribute.ColorSize, (CGLPixelFormatAttribute)24, CGLPixelFormatAttribute.DepthSize, (CGLPixelFormatAttribute)16 };
int numPixs = -1;
CGLPixelFormat pixelFormat = new CGLPixelFormat (attribs, out numPixs);
return pixelFormat;
}
