public IntPtr GetDirect3DDevice()
{
if (!EglInterface.QueryDisplayAttribExt(Handle, EglConsts.EGL_DEVICE_EXT, out var eglDevice))
{
throw new OpenGlException("Unable to get EGL_DEVICE_EXT");
}
if (!EglInterface.QueryDeviceAttribExt(eglDevice, PlatformApi == AngleOptions.PlatformApi.DirectX9 ? EGL_D3D9_DEVICE_ANGLE : EGL_D3D11_DEVICE_ANGLE, out var d3dDeviceHandle))
{
throw new OpenGlException("Unable to get EGL_D3D9_DEVICE_ANGLE");
}
return(d3dDeviceHandle);
}
static AngleInfo CreateAngleDisplay(EglInterface _egl)
{
if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
throw new PlatformNotSupportedException();
}
var display = IntPtr.Zero;
AngleOptions.PlatformApi angleApi = default;
{
if (_egl.GetPlatformDisplayEXT == null)
{
throw new OpenGlException("eglGetPlatformDisplayEXT is not supported by libegl.dll");
}
var allowedApis = AvaloniaLocator.Current.GetService <AngleOptions>()?.AllowedPlatformApis
?? new [] { AngleOptions.PlatformApi.DirectX11, AngleOptions.PlatformApi.DirectX9 };
foreach (var platformApi in allowedApis)
{
int dapi;
if (platformApi == AngleOptions.PlatformApi.DirectX9)
{
dapi = EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE;
}
else if (platformApi == AngleOptions.PlatformApi.DirectX11)
{
dapi = EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE;
}
else
{
continue;
}
display = _egl.GetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE, IntPtr.Zero,
new[] { EGL_PLATFORM_ANGLE_TYPE_ANGLE, dapi, EGL_NONE });
if (display != IntPtr.Zero)
{
angleApi = platformApi;
break;
}
}
if (display == IntPtr.Zero)
{
throw new OpenGlException("Unable to create ANGLE display");
}
return(new AngleInfo {
Display = display, PlatformApi = angleApi
});
}
}
public AngleWin32EglDisplay(EglInterface egl) : this(egl, CreateAngleDisplay(egl))
{
}
private AngleWin32EglDisplay(EglInterface egl, AngleInfo info) : base(egl, info.Display)
{
PlatformApi = info.PlatformApi;
}