|
private IsDirect ( |
||
| dpy | ||
| context | ||
| return | bool | |
public X11GLContext(GraphicsMode mode, IWindowInfo window, IGraphicsContext shared, bool direct,
int major, int minor, GraphicsContextFlags flags)
{
if (mode == null)
{
throw new ArgumentNullException("mode");
}
if (window == null)
{
throw new ArgumentNullException("window");
}
// Do not move this lower, as almost everything requires the Display
// property to be correctly set.
Display = ((X11WindowInfo)window).Display;
// Check that GLX is supported. We cannot proceed to create
// an OpenGL context without the GLX extension.
int error_base;
int event_base;
int glx_major;
int glx_minor;
using (new XLock(Display))
{
bool supported = Glx.QueryExtension(Display, out error_base, out event_base);
supported &= Glx.QueryVersion(Display, out glx_major, out glx_minor);
if (supported)
{
Debug.Print("[X11] GLX supported. Version is {0}.{1}", glx_major, glx_minor);
}
else
{
throw new NotSupportedException("[X11] GLX extension is not supported.");
}
}
IntPtr visual = IntPtr.Zero;
IntPtr fbconfig = IntPtr.Zero;
// Once a window has a visual, we cannot use a different
// visual on the OpenGL context, or glXMakeCurrent might fail.
// Note: we should only check X11WindowInfo.Visual, as that
// is the only property that can be set by Utilities.CreateX11WindowInfo.
currentWindow = (X11WindowInfo)window;
if (currentWindow.Visual != IntPtr.Zero)
{
visual = currentWindow.Visual;
fbconfig = currentWindow.FBConfig;
Mode = currentWindow.GraphicsMode;
}
if (Mode == null || !Mode.Index.HasValue)
{
Mode = ModeSelector.SelectGraphicsMode(mode, out visual, out fbconfig);
}
ContextHandle shareHandle = shared != null ?
(shared as IGraphicsContextInternal).Context : (ContextHandle)IntPtr.Zero;
Debug.Write("Creating X11GLContext context: ");
Debug.Write(direct ? "direct, " : "indirect, ");
Debug.WriteLine(shareHandle.Handle == IntPtr.Zero ? "not shared... " :
String.Format("shared with ({0})... ", shareHandle));
// Try using the new context creation method. If it fails, fall back to the old one.
// For each of these methods, we try two times to create a context:
// one with the "direct" flag intact, the other with the flag inversed.
// HACK: It seems that Catalyst 9.1 - 9.4 on Linux have problems with contexts created through
// GLX_ARB_create_context, including hideous input lag, no vsync and other madness.
// Use legacy context creation if the user doesn't request a 3.0+ context.
if (fbconfig != IntPtr.Zero && (major * 10 + minor >= 30) && SupportsCreateContextAttribs(Display, currentWindow))
{
Handle = CreateContextAttribs(Display, currentWindow.Screen,
fbconfig, direct, major, minor, flags, shareHandle);
}
if (Handle == ContextHandle.Zero)
{
Handle = CreateContextLegacy(Display, visual, direct, shareHandle);
}
if (Handle != ContextHandle.Zero)
{
Debug.Print("Context created (id: {0}).", Handle);
}
else
{
throw new GraphicsContextException("Failed to create OpenGL context. Glx.CreateContext call returned 0.");
}
using (new XLock(Display))
{
if (!Glx.IsDirect(Display, Handle.Handle))
{
Debug.Print("Warning: Context is not direct.");
}
}
}
public X11GLContext(GraphicsMode mode, IWindowInfo window, IGraphicsContext shared, bool direct,
int major, int minor, GraphicsContextFlags flags)
{
if (mode == null)
{
throw new ArgumentNullException("mode");
}
if (window == null)
{
throw new ArgumentNullException("window");
}
Mode = mode;
currentWindow = (X11WindowInfo)window;
currentWindow.VisualInfo = SelectVisual(mode, currentWindow);
ContextHandle shareHandle = shared != null ?
(shared as IGraphicsContextInternal).Context : (ContextHandle)IntPtr.Zero;
Debug.Write("Creating X11GLContext context: ");
Debug.Write(direct ? "direct, " : "indirect, ");
Debug.WriteLine(shareHandle.Handle == IntPtr.Zero ? "not shared... " :
String.Format("shared with ({0})... ", shareHandle));
if (!glx_loaded)
{
Debug.WriteLine("Creating temporary context to load GLX extensions.");
// Create a temporary context to obtain the necessary function pointers.
XVisualInfo visual = currentWindow.VisualInfo;
IntPtr ctx = Glx.CreateContext(currentWindow.Display, ref visual, IntPtr.Zero, true);
if (ctx == IntPtr.Zero)
{
ctx = Glx.CreateContext(currentWindow.Display, ref visual, IntPtr.Zero, false);
}
if (ctx != IntPtr.Zero)
{
new Glx().LoadAll();
Glx.MakeCurrent(currentWindow.Display, IntPtr.Zero, IntPtr.Zero);
//Glx.DestroyContext(currentWindow.Display, ctx);
glx_loaded = true;
}
}
// Try using the new context creation method. If it fails, fall back to the old one.
// For each of these methods, we try two times to create a context:
// one with the "direct" flag intact, the other with the flag inversed.
// HACK: It seems that Catalyst 9.1 - 9.4 on Linux have problems with contexts created through
// GLX_ARB_create_context, including hideous input lag, no vsync and other. Use legacy context
// creation if the user doesn't request a 3.0+ context.
if ((major * 10 + minor >= 30) && Glx.Delegates.glXCreateContextAttribsARB != null)
{
Debug.Write("Using GLX_ARB_create_context... ");
unsafe
{
// We need the FB config for the current GraphicsMode.
int count;
IntPtr *fbconfigs = Glx.ChooseFBConfig(currentWindow.Display, currentWindow.Screen,
new int[] { (int)GLXAttribute.VISUAL_ID, (int)mode.Index, 0 }, out count);
if (count > 0)
{
List <int> attributes = new List <int>();
attributes.Add((int)ArbCreateContext.MajorVersion);
attributes.Add(major);
attributes.Add((int)ArbCreateContext.MinorVersion);
attributes.Add(minor);
if (flags != 0)
{
attributes.Add((int)ArbCreateContext.Flags);
attributes.Add((int)flags);
}
attributes.Add(0);
Handle = new ContextHandle(Glx.Arb.CreateContextAttribs(currentWindow.Display, *fbconfigs,
shareHandle.Handle, direct, attributes.ToArray()));
if (Handle == ContextHandle.Zero)
{
Debug.Write(String.Format("failed. Trying direct: {0}... ", !direct));
Handle = new ContextHandle(Glx.Arb.CreateContextAttribs(currentWindow.Display, *fbconfigs,
shareHandle.Handle, !direct, attributes.ToArray()));
}
if (Handle == ContextHandle.Zero)
{
Debug.WriteLine("failed.");
}
else
{
Debug.WriteLine("success!");
}
Functions.XFree((IntPtr)fbconfigs);
}
}
}
if (Handle == ContextHandle.Zero)
{
Debug.Write("Using legacy context creation... ");
XVisualInfo info = currentWindow.VisualInfo; // Cannot pass a Property by reference.
Handle = new ContextHandle(Glx.CreateContext(currentWindow.Display, ref info, shareHandle.Handle, direct));
if (Handle == ContextHandle.Zero)
{
Debug.WriteLine(String.Format("failed. Trying direct: {0}... ", !direct));
Handle = new ContextHandle(Glx.CreateContext(currentWindow.Display, ref info, IntPtr.Zero, !direct));
}
}
if (Handle != ContextHandle.Zero)
{
Debug.Print("Context created (id: {0}).", Handle);
}
else
{
throw new GraphicsContextException("Failed to create OpenGL context. Glx.CreateContext call returned 0.");
}
if (!Glx.IsDirect(currentWindow.Display, Handle.Handle))
{
Debug.Print("Warning: Context is not direct.");
}
}
public X11GLContext(GraphicsMode mode, IWindowInfo window, IGraphicsContext shared, bool direct,
int major, int minor, GraphicsContextFlags flags)
: base(DesktopBackend.OpenGL)
{
if (mode == null)
{
throw new ArgumentNullException("mode");
}
if (window == null)
{
throw new ArgumentNullException("window");
}
Mode = mode;
// Do not move this lower, as almost everything requires the Display
// property to be correctly set.
Display = ((X11WindowInfo)window).Display;
currentWindow = (X11WindowInfo)window;
currentWindow.VisualInfo = SelectVisual(mode, currentWindow);
ContextHandle shareHandle = shared != null ?
(shared as IGraphicsContextInternal).Context : (ContextHandle)IntPtr.Zero;
Debug.Write("Creating X11GLContext context: ");
Debug.Write(direct ? "direct, " : "indirect, ");
Debug.WriteLine(shareHandle.Handle == IntPtr.Zero ? "not shared... " :
String.Format("shared with ({0})... ", shareHandle));
if (!glx_loaded)
{
Debug.WriteLine("Creating temporary context to load GLX extensions.");
// Create a temporary context to obtain the necessary function pointers.
XVisualInfo visual = currentWindow.VisualInfo;
IntPtr ctx = IntPtr.Zero;
using (new XLock(Display))
{
ctx = Glx.CreateContext(Display, ref visual, IntPtr.Zero, true);
if (ctx == IntPtr.Zero)
{
ctx = Glx.CreateContext(Display, ref visual, IntPtr.Zero, false);
}
}
if (ctx != IntPtr.Zero)
{
new Glx().LoadEntryPoints();
using (new XLock(Display))
{
Glx.MakeCurrent(Display, IntPtr.Zero, IntPtr.Zero);
//Glx.DestroyContext(Display, ctx);
}
glx_loaded = true;
}
}
// Try using the new context creation method. If it fails, fall back to the old one.
// For each of these methods, we try two times to create a context:
// one with the "direct" flag intact, the other with the flag inversed.
// HACK: It seems that Catalyst 9.1 - 9.4 on Linux have problems with contexts created through
// GLX_ARB_create_context, including hideous input lag, no vsync and other. Use legacy context
// creation if the user doesn't request a 3.0+ context.
if ((major * 10 + minor >= 30) && Glx.Delegates.glXCreateContextAttribsARB != null)
{
Debug.Write("Using GLX_ARB_create_context... ");
unsafe
{
// We need the FB config for the current GraphicsMode.
int count;
IntPtr *fbconfigs = Glx.ChooseFBConfig(Display, currentWindow.Screen,
new int[] {
(int)GLXAttribute.VISUAL_ID,
(int)mode.Index,
0
}, out count);
if (count > 0)
{
List <int> attributes = new List <int>();
attributes.Add((int)ArbCreateContext.MajorVersion);
attributes.Add(major);
attributes.Add((int)ArbCreateContext.MinorVersion);
attributes.Add(minor);
if (flags != 0)
{
#warning "This is not entirely correct: Embedded is not a valid flag! We need to add a GetARBContextFlags(GraphicsContextFlags) method."
attributes.Add((int)ArbCreateContext.Flags);
attributes.Add((int)flags);
}
// According to the docs, " <attribList> specifies a list of attributes for the context.
// The list consists of a sequence of <name,value> pairs terminated by the
// value 0. [...]"
// Is this a single 0, or a <0, 0> pair? (Defensive coding: add two zeroes just in case).
attributes.Add(0);
attributes.Add(0);
using (new XLock(Display))
{
Handle = new ContextHandle(Glx.Arb.CreateContextAttribs(Display, *fbconfigs,
shareHandle.Handle, direct, attributes.ToArray()));
if (Handle == ContextHandle.Zero)
{
Debug.Write(String.Format("failed. Trying direct: {0}... ", !direct));
Handle = new ContextHandle(Glx.Arb.CreateContextAttribs(Display, *fbconfigs,
shareHandle.Handle, !direct, attributes.ToArray()));
}
}
if (Handle == ContextHandle.Zero)
{
Debug.WriteLine("failed.");
}
else
{
Debug.WriteLine("success!");
}
using (new XLock(Display))
{
Functions.XFree((IntPtr)fbconfigs);
}
}
}
}
if (Handle == ContextHandle.Zero)
{
Debug.Write("Using legacy context creation... ");
XVisualInfo info = currentWindow.VisualInfo;
using (new XLock(Display))
{
// Cannot pass a Property by reference.
Handle = new ContextHandle(Glx.CreateContext(Display, ref info, shareHandle.Handle, direct));
if (Handle == ContextHandle.Zero)
{
Debug.WriteLine(String.Format("failed. Trying direct: {0}... ", !direct));
Handle = new ContextHandle(Glx.CreateContext(Display, ref info, IntPtr.Zero, !direct));
}
}
}
if (Handle != ContextHandle.Zero)
{
Debug.Print("Context created (id: {0}).", Handle);
}
else
{
throw new GraphicsContextException("Failed to create OpenGL context. Glx.CreateContext call returned 0.");
}
using (new XLock(Display))
{
if (!Glx.IsDirect(Display, Handle.Handle))
{
Debug.Print("Warning: Context is not direct.");
}
}
}
public unsafe X11GLContext(GraphicsMode mode, IWindowInfo window, IGraphicsContext shared, bool direct, int major, int minor, GraphicsContextFlags flags)
{
if (mode == null)
{
throw new ArgumentNullException("mode");
}
if (window == null)
{
throw new ArgumentNullException("window");
}
this.Mode = mode;
this.Display = ((X11WindowInfo)window).Display;
this.currentWindow = (X11WindowInfo)window;
this.currentWindow.VisualInfo = this.SelectVisual(mode, this.currentWindow);
ContextHandle contextHandle = shared != null ? (shared as IGraphicsContextInternal).Context : (ContextHandle)IntPtr.Zero;
if (!this.glx_loaded)
{
XVisualInfo visualInfo = this.currentWindow.VisualInfo;
IntPtr num = IntPtr.Zero;
using (new XLock(this.Display))
{
num = Glx.CreateContext(this.Display, ref visualInfo, IntPtr.Zero, true);
if (num == IntPtr.Zero)
{
num = Glx.CreateContext(this.Display, ref visualInfo, IntPtr.Zero, false);
}
}
if (num != IntPtr.Zero)
{
new Glx().LoadEntryPoints();
using (new XLock(this.Display))
Glx.MakeCurrent(this.Display, IntPtr.Zero, IntPtr.Zero);
this.glx_loaded = true;
}
}
if (major * 10 + minor >= 30 && Glx.Delegates.glXCreateContextAttribsARB != null)
{
int fbount;
IntPtr *numPtr = Glx.ChooseFBConfig(this.Display, this.currentWindow.Screen, new int[3]
{
32779,
(int)mode.Index.Value,
0
}, out fbount);
if (fbount > 0)
{
List <int> list = new List <int>();
list.Add(8337);
list.Add(major);
list.Add(8338);
list.Add(minor);
if (flags != GraphicsContextFlags.Default)
{
list.Add(8340);
list.Add((int)flags);
}
list.Add(0);
list.Add(0);
using (new XLock(this.Display))
{
this.Handle = new ContextHandle(Glx.Arb.CreateContextAttribs(this.Display, *numPtr, contextHandle.Handle, direct, list.ToArray()));
if (this.Handle == ContextHandle.Zero)
{
this.Handle = new ContextHandle(Glx.Arb.CreateContextAttribs(this.Display, *numPtr, contextHandle.Handle, !direct, list.ToArray()));
}
}
int num = this.Handle == ContextHandle.Zero ? 1 : 0;
using (new XLock(this.Display))
Functions.XFree((IntPtr)((void *)numPtr));
}
}
if (this.Handle == ContextHandle.Zero)
{
XVisualInfo visualInfo = this.currentWindow.VisualInfo;
using (new XLock(this.Display))
{
this.Handle = new ContextHandle(Glx.CreateContext(this.Display, ref visualInfo, contextHandle.Handle, direct));
if (this.Handle == ContextHandle.Zero)
{
this.Handle = new ContextHandle(Glx.CreateContext(this.Display, ref visualInfo, IntPtr.Zero, !direct));
}
}
}
if (!(this.Handle != ContextHandle.Zero))
{
throw new GraphicsContextException("Failed to create OpenGL context. Glx.CreateContext call returned 0.");
}
using (new XLock(this.Display))
Glx.IsDirect(this.Display, this.Handle.Handle);
}
