/// <summary>
/// Initializes a new instance of the <see cref="GlxContext" /> class.
/// </summary>
/// <param name="glx">The GLX.</param>
/// <param name="handle">The handle.</param>
/// <param name="display">The display.</param>
/// <param name="x11">The X11.</param>
/// <param name="defaultXid">The default xid.</param>
public GlxContext(GlxInterface glx, IntPtr handle, GlxDisplay display, X11Info x11, IntPtr defaultXid)
{
Handle = handle;
Glx = glx;
_x11 = x11;
_defaultXid = defaultXid;
Display = display;
}
public static bool TryInitialize(X11Info x11)
{
var feature = TryCreate(x11);
if (feature != null)
{
AvaloniaLocator.CurrentMutable.Bind <IWindowingPlatformGlFeature>().ToConstant(feature);
return(true);
}
return(false);
}
public static bool TryInitialize(X11Info x11, IList <GlVersion> glProfiles)
{
var feature = TryCreate(x11, glProfiles);
if (feature != null)
{
AvaloniaLocator.CurrentMutable.Bind <IPlatformOpenGlInterface>().ToConstant(feature);
return(true);
}
return(false);
}
public static GlxGlPlatformFeature TryCreate(X11Info x11, List <GlVersion> glProfiles)
{
try
{
var disp = new GlxDisplay(x11, glProfiles);
return(new GlxGlPlatformFeature
{
Display = disp,
DeferredContext = disp.DeferredContext
});
}
catch (Exception e)
{
Logger.TryGet(LogEventLevel.Error, "OpenGL")?.Log(null, "Unable to initialize GLX-based rendering: {0}", e);
return(null);
}
}
public GlxContext(GlxInterface glx, IntPtr handle, GlxDisplay display,
GlVersion version, int sampleCount, int stencilSize,
X11Info x11, IntPtr defaultXid,
bool ownsPBuffer)
{
Handle = handle;
Glx = glx;
_x11 = x11;
_defaultXid = defaultXid;
_ownsPBuffer = ownsPBuffer;
Display = display;
Version = version;
SampleCount = sampleCount;
StencilSize = stencilSize;
using (MakeCurrent())
GlInterface = new GlInterface(version, GlxInterface.SafeGetProcAddress);
}
public static GlxGlPlatformFeature TryCreate(X11Info x11)
{
try
{
var disp = new GlxDisplay(x11);
return(new GlxGlPlatformFeature
{
Display = disp,
ImmediateContext = disp.ImmediateContext,
DeferredContext = disp.DeferredContext
});
}
catch (Exception e)
{
Logger.Error("OpenGL", null, "Unable to initialize GLX-based rendering: {0}", e);
return(null);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="GlxDisplay" /> class.
/// </summary>
/// <param name="x11">The X11.</param>
/// <exception cref="OpenGlException">Unable to choose FBConfig
/// or
/// Unable to get visual info from FBConfig
/// or
/// GL version string is null, aborting
/// or
/// GL renderer string is null, aborting
/// or
/// Renderer '{GlInterface.Renderer}' is blacklisted by '{item}'</exception>
public GlxDisplay(X11Info x11)
{
_x11 = x11;
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,
};
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];
VisualInfo = visual;
if (visual->depth == 32)
{
break;
}
}
}
if (_fbconfig != IntPtr.Zero)
{
break;
}
}
if (_fbconfig == IntPtr.Zero)
{
throw new OpenGlException("Unable to choose FBConfig");
}
if (VisualInfo == 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 pbuffers = Enumerable.Range(0, 2).Select(_ => Glx.CreatePbuffer(_x11.Display, _fbconfig, new[]
{
GLX_PBUFFER_WIDTH, 1, GLX_PBUFFER_HEIGHT, 1, 0
})).ToList();
XLib.XFlush(_x11.Display);
ImmediateContext = CreateContext(pbuffers[0], null);
DeferredContext = CreateContext(pbuffers[1], ImmediateContext);
ImmediateContext.MakeCurrent();
var err = Glx.GetError();
GlInterface = new GlInterface(GlxInterface.SafeGetProcAddress);
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 blacklist = AvaloniaLocator.Current.GetService <X11PlatformOptions>()
?.GlxRendererBlacklist;
if (blacklist != null)
{
foreach (var item in blacklist)
{
if (GlInterface.Renderer.Contains(item))
{
throw new OpenGlException($"Renderer '{GlInterface.Renderer}' is blacklisted by '{item}'");
}
}
}
}
}
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}'");
}
}
}
}
}
}
public GlxContext(IntPtr handle, GlxDisplay display, X11Info x11)
{
Handle = handle;
_x11 = x11;
Display = display;
}
public GlxDisplay(X11Info x11)
{
_x11 = x11;
var baseAttribs = new[]
{
GLX_X_RENDERABLE, 1,
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_DRAWABLE_TYPE, GLX_WINDOW_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,
};
foreach (var attribs in new[]
{
//baseAttribs.Concat(multiattribs),
baseAttribs,
})
{
var ptr = GlxChooseFBConfig(_x11.Display, x11.DefaultScreen,
attribs, out var count);
for (var c = 0; c < count; c++)
{
var visual = GlxGetVisualFromFBConfig(_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 (GlxGetFBConfigAttrib(_x11.Display, _fbconfig, GLX_SAMPLES, out var samples) == 0)
{
SampleCount = samples;
}
if (GlxGetFBConfigAttrib(_x11.Display, _fbconfig, GLX_STENCIL_SIZE, out var stencil) == 0)
{
StencilSize = stencil;
}
ImmediateContext = CreateContext(null);
DeferredContext = CreateContext(ImmediateContext);
ImmediateContext.MakeCurrent();
GlInterface = GlInterface.FromNativeUtf8GetProcAddress(p => GlxGetProcAddress(p));
}
public GlxDisplay(X11Info x11)
{
_x11 = x11;
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,
};
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 pbuffers = Enumerable.Range(0, 2).Select(_ => Glx.CreatePbuffer(_x11.Display, _fbconfig, new[]
{
GLX_PBUFFER_WIDTH, 1, GLX_PBUFFER_HEIGHT, 1, 0
})).ToList();
XLib.XFlush(_x11.Display);
ImmediateContext = CreateContext(pbuffers[0], null);
DeferredContext = CreateContext(pbuffers[1], ImmediateContext);
ImmediateContext.MakeCurrent();
var err = Glx.GetError();
GlInterface = new GlInterface(GlxInterface.GlxGetProcAddress);
if (GlInterface.Version == null)
{
throw new OpenGlException("GL version string is null, aborting");
}
}
