public EGLSurface CreateSurface(int width, int height)
{
IntPtr surface;
EglWindowInfo.CreatePbufferSurface(
EglContext.GraphicsMode.Index.Value,
width, height,
out surface);
return(surface);
}
int swap_interval = 1; // Default interval is defined as 1 in EGL.
#endregion
#region Constructors
public EglContext(GraphicsMode mode, EglWindowInfo window, IGraphicsContext sharedContext,
int major, int minor, GraphicsContextFlags flags)
{
if (mode == null)
{
throw new ArgumentNullException("mode");
}
if (window == null)
{
throw new ArgumentNullException("window");
}
EglContext shared = GetSharedEglContext(sharedContext);
WindowInfo = window;
// Select an EGLConfig that matches the desired mode. We cannot use the 'mode'
// parameter directly, since it may have originated on a different system (e.g. GLX)
// and it may not support the desired renderer.
Renderable = RenderableFlags.GL;
if ((flags & GraphicsContextFlags.Embedded) != 0)
{
switch (major)
{
case 3:
Renderable = RenderableFlags.ES3;
break;
case 2:
Renderable = RenderableFlags.ES2;
break;
default:
Renderable = RenderableFlags.ES;
break;
}
}
RenderApi api = (Renderable & RenderableFlags.GL) != 0 ? RenderApi.GL : RenderApi.ES;
Debug.Print("[EGL] Binding {0} rendering API.", api);
if (!Egl.BindAPI(api))
{
Debug.Print("[EGL] Failed to bind rendering API. Error: {0}", Egl.GetError());
}
bool offscreen = (flags & GraphicsContextFlags.Offscreen) != 0;
SurfaceType surface_type = offscreen
? SurfaceType.PBUFFER_BIT
: SurfaceType.WINDOW_BIT;
Mode = new EglGraphicsMode().SelectGraphicsMode(surface_type,
window.Display, mode.ColorFormat, mode.Depth, mode.Stencil,
mode.Samples, mode.AccumulatorFormat, mode.Buffers, mode.Stereo,
Renderable, (flags & GraphicsContextFlags.AngleFullscreen) > 0);
if (!Mode.Index.HasValue)
{
throw new GraphicsModeException("Invalid or unsupported GraphicsMode.");
}
IntPtr config = Mode.Index.Value;
if (window.Surface == IntPtr.Zero)
{
if (!offscreen)
{
window.CreateWindowSurface(config);
}
else
{
window.CreatePbufferSurface(config);
}
}
int[] attrib_list = new int[] { Egl.CONTEXT_CLIENT_VERSION, major, Egl.NONE };
var share_context = shared != null ? shared.HandleAsEGLContext : IntPtr.Zero;
try
{
HandleAsEGLContext = Egl.CreateContext(window.Display, config, share_context, attrib_list);
GraphicsContextFlags = flags;
MakeCurrent(window);
}
catch
{
window.DestroySurface();
throw;
}
}