private DeferredState _Reducer(DeferredState state, DeferredContext context)
{
Func<object> action = null;
switch (context.ContextType)
{
case ContextType.Then:
if (state.Reason != null)
{
if (context.Reject != null)
{
action = () => context.Reject(state.Reason);
}
}
else if (context.Fulfill != null)
{
action = () => context.Fulfill(state.Value);
}
break;
case ContextType.Catch:
if (state.Reason != null)
{
action = () => context.Reject(state.Reason);
}
break;
case ContextType.Finally:
action = () => context.Fulfill(state.Value);
break;
}
if (action == null)
{
return state;
}
object result = null;
try
{
result = action();
} catch (Exception ex)
{
return new DeferredState(ex);
}
if (result is Promise)
{
Promise p = result as Promise;
}
}
public GlxDisplay(X11Info x11, IList <GlVersion> probeProfiles)
{
_x11 = x11;
_probeProfiles = probeProfiles.ToArray();
_displayExtensions = Glx.GetExtensions(_x11.Display);
var baseAttribs = new[]
{
GLX_X_RENDERABLE, 1,
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT | GLX_PBUFFER_BIT,
GLX_DOUBLEBUFFER, 1,
GLX_RED_SIZE, 8,
GLX_GREEN_SIZE, 8,
GLX_BLUE_SIZE, 8,
GLX_ALPHA_SIZE, 8,
GLX_DEPTH_SIZE, 1,
GLX_STENCIL_SIZE, 8,
};
int sampleCount = 0;
int stencilSize = 0;
foreach (var attribs in new[]
{
//baseAttribs.Concat(multiattribs),
baseAttribs,
})
{
var ptr = Glx.ChooseFBConfig(_x11.Display, x11.DefaultScreen,
attribs, out var count);
for (var c = 0; c < count; c++)
{
var visual = Glx.GetVisualFromFBConfig(_x11.Display, ptr[c]);
// We prefer 32 bit visuals
if (_fbconfig == IntPtr.Zero || visual->depth == 32)
{
_fbconfig = ptr[c];
_visual = visual;
if (visual->depth == 32)
{
break;
}
}
}
if (_fbconfig != IntPtr.Zero)
{
break;
}
}
if (_fbconfig == IntPtr.Zero)
{
throw new OpenGlException("Unable to choose FBConfig");
}
if (_visual == null)
{
throw new OpenGlException("Unable to get visual info from FBConfig");
}
if (Glx.GetFBConfigAttrib(_x11.Display, _fbconfig, GLX_SAMPLES, out var samples) == 0)
{
sampleCount = samples;
}
if (Glx.GetFBConfigAttrib(_x11.Display, _fbconfig, GLX_STENCIL_SIZE, out var stencil) == 0)
{
stencilSize = stencil;
}
var attributes = new[] { GLX_PBUFFER_WIDTH, 1, GLX_PBUFFER_HEIGHT, 1, 0 };
Glx.CreatePbuffer(_x11.Display, _fbconfig, attributes);
Glx.CreatePbuffer(_x11.Display, _fbconfig, attributes);
XLib.XFlush(_x11.Display);
DeferredContext = CreateContext(CreatePBuffer(), null,
sampleCount, stencilSize, true);
using (DeferredContext.MakeCurrent())
{
var glInterface = DeferredContext.GlInterface;
if (glInterface.Version == null)
{
throw new OpenGlException("GL version string is null, aborting");
}
if (glInterface.Renderer == null)
{
throw new OpenGlException("GL renderer string is null, aborting");
}
if (Environment.GetEnvironmentVariable("AVALONIA_GLX_IGNORE_RENDERER_BLACKLIST") != "1")
{
var opts = AvaloniaLocator.Current.GetService <X11PlatformOptions>() ?? new X11PlatformOptions();
var blacklist = opts.GlxRendererBlacklist;
if (blacklist != null)
{
foreach (var item in blacklist)
{
if (glInterface.Renderer.Contains(item))
{
throw new OpenGlException(
$"Renderer '{glInterface.Renderer}' is blacklisted by '{item}'");
}
}
}
}
}
}
