public EglContext CreateContext(IGlContext share)
{
if (share != null && !SupportsSharing)
{
throw new NotSupportedException("Context sharing is not supported by this display");
}
if ((_surfaceType | EGL_PBUFFER_BIT) == 0)
{
throw new InvalidOperationException("Platform doesn't support PBUFFER surfaces");
}
var shareCtx = (EglContext)share;
var ctx = _egl.CreateContext(_display, _config, shareCtx?.Context ?? IntPtr.Zero, _contextAttributes);
if (ctx == IntPtr.Zero)
{
throw OpenGlException.GetFormattedException("eglCreateContext", _egl);
}
var surf = _egl.CreatePBufferSurface(_display, _config, new[]
{
EGL_WIDTH, 1,
EGL_HEIGHT, 1,
EGL_NONE
});
if (surf == IntPtr.Zero)
{
throw OpenGlException.GetFormattedException("eglCreatePBufferSurface", _egl);
}
var rv = new EglContext(this, _egl, shareCtx, ctx, context => new EglSurface(this, context, surf),
_version, _sampleCount, _stencilSize);
return(rv);
}
public Session(EglDisplay display, EglContext context,
EglSurface glSurface, EglGlPlatformSurfaceBase.IEglWindowGlPlatformSurfaceInfo info,
IDisposable restoreContext, Action onFinish, bool isYFlipped)
{
IsYFlipped = isYFlipped;
_context = context;
_display = display;
_glSurface = glSurface;
_info = info;
_restoreContext = restoreContext;
_onFinish = onFinish;
}
public EglContext(EglDisplay display, EglInterface egl, EglContext sharedWith, IntPtr ctx, Func <EglContext, EglSurface> offscreenSurface,
GlVersion version, int sampleCount, int stencilSize)
{
_disp = display;
_egl = egl;
_sharedWith = sharedWith;
Context = ctx;
OffscreenSurface = offscreenSurface(this);
Version = version;
SampleCount = sampleCount;
StencilSize = stencilSize;
using (MakeCurrent())
GlInterface = GlInterface.FromNativeUtf8GetProcAddress(version, b => _egl.GetProcAddress(b));
}
public EglContext CreateContext(EglContext share, EglSurface offscreenSurface)
{
if (share != null && !SupportsSharing)
{
throw new NotSupportedException("Context sharing is not supported by this display");
}
var ctx = _egl.CreateContext(_display, _config, share?.Context ?? IntPtr.Zero, _contextAttributes);
if (ctx == IntPtr.Zero)
{
throw OpenGlException.GetFormattedException("eglCreateContext", _egl);
}
var rv = new EglContext(this, _egl, share, ctx, _ => offscreenSurface, _version, _sampleCount, _stencilSize);
rv.MakeCurrent(null);
return(rv);
}
public EglPlatformOpenGlInterface(EglDisplay display)
{
Display = display;
PrimaryEglContext = display.CreateContext(null);
}
public EglSurface(EglDisplay display, EglContext context, IntPtr surface) : base(surface, true)
{
_display = display;
_context = context;
_egl = display.EglInterface;
}
