public IEnumerable <Config> ChooseConfigs(Attribs <ConfigAttributes> attribs, int numberOfConfigsToReturn)
{
var configs = new IntPtr[numberOfConfigsToReturn];
int numberOfConfigsFound;
if (NativeEgl.eglChooseConfig(
this.display.DisplayPointer,
attribs.ToIntArray(),
configs,
configs.Length,
out numberOfConfigsFound) == NativeEgl.EGL_FALSE)
{
throw new PlatformGraphicsException("Could not choose configurations.", NativeEgl.eglGetError());
}
var result = new List <Config>();
for (int i = 0; i < numberOfConfigsFound; i++)
{
result.Add(new Config(configs[i]));
}
return(result);
}
public static int[] ToIntArray <TAttributeEnum>(this Attribs <TAttributeEnum> list)
{
if (list == null || list.Attributes.Count == 0)
{
return(null);
}
return(list.Attributes.ToArray());
}
protected void Initialize()
{
var contextAttribs = new Attribs <int>();
contextAttribs.Add(NativeEgl.EGL_CONTEXT_CLIENT_VERSION, (int)this.clientVersion);
contextAttribs.AddEnd();
this.ContextPointer = NativeEgl.eglCreateContext(
this.displayPointer, this.configPointer, IntPtr.Zero, contextAttribs.ToIntArray());
if (this.ContextPointer == IntPtr.Zero)
{
throw new PlatformGraphicsException("Failed to create context.", NativeEgl.eglGetError());
}
this.isInitialized = true;
}