public EglContext CreateContext(IGlContext share)
{
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, ctx, new EglSurface(this, _egl, surf));
rv.MakeCurrent(null);
return(rv);
}
public IGlContext CreateContext(IGlContext share)
{
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, ctx, surf);
rv.MakeCurrent(null);
return(rv);
}
public EglContext CreateContext(EglContext share, EglSurface offscreenSurface)
{
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, ctx, offscreenSurface);
rv.MakeCurrent(null);
return(rv);
}