public EglContext(EglDisplay display, EglInterface egl, IntPtr ctx, EglSurface offscreenSurface)
{
_disp = display;
_egl = egl;
Context = ctx;
OffscreenSurface = offscreenSurface;
}
public Session(IGlContext context, EglSurface glSurface, IEglWindowGlPlatformSurfaceInfo info,
IDisposable @lock)
{
_context = context;
_glSurface = glSurface;
_info = info;
_lock = @lock;
}
public void MakeCurrent(EglSurface surface)
{
var surf = surface?.DangerousGetHandle() ?? OffscreenSurface;
if (!_egl.MakeCurrent(_disp.Handle, surf, surf, Context))
{
throw OpenGlException.GetFormattedException("eglMakeCurrent", _egl);
}
}
public void MakeCurrent(EglSurface surface)
{
var surf = ((EglSurface)surface)?.DangerousGetHandle() ?? OffscreenSurface;
if (!_egl.MakeCurrent(_disp.Handle, surf, surf, Context))
{
throw new OpenGlException("eglMakeCurrent failed");
}
}
public RenderTarget(EglDisplay display, EglContext context,
EglSurface glSurface, IEglWindowGlPlatformSurfaceInfo info)
{
_display = display;
_context = context;
_glSurface = glSurface;
_info = info;
_initialSize = info.Size;
}
public Session(EglDisplay display, EglContext context,
EglSurface glSurface, IEglWindowGlPlatformSurfaceInfo info,
IDisposable @lock, IDisposable restoreContext)
{
_context = context;
_display = display;
_glSurface = glSurface;
_info = info;
_lock = @lock;
_restoreContext = restoreContext;
}
public IDisposable MakeCurrent(EglSurface surface)
{
var old = new RestoreContext(_egl, _disp.Handle);
var surf = surface ?? OffscreenSurface;
_egl.MakeCurrent(_disp.Handle, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
if (!_egl.MakeCurrent(_disp.Handle, surf.DangerousGetHandle(), surf.DangerousGetHandle(), Context))
{
throw OpenGlException.GetFormattedException("eglMakeCurrent", _egl);
}
return(old);
}
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);
}
public EglContext(EglDisplay display, EglInterface egl, IntPtr ctx, EglSurface offscreenSurface,
GlVersion version, int sampleCount, int stencilSize)
{
_disp = display;
_egl = egl;
Context = ctx;
OffscreenSurface = offscreenSurface;
Version = version;
SampleCount = sampleCount;
StencilSize = stencilSize;
using (MakeCurrent())
GlInterface = GlInterface.FromNativeUtf8GetProcAddress(version, b => _egl.GetProcAddress(b));
}
public Session(EglDisplay display, EglContext context,
EglSurface glSurface, EglGlPlatformSurfaceBase.IEglWindowGlPlatformSurfaceInfo info,
IDisposable @lock, IDisposable restoreContext, Action onFinish, bool isYFlipped)
{
IsYFlipped = isYFlipped;
_context = context;
_display = display;
_glSurface = glSurface;
_info = info;
_lock = @lock;
_restoreContext = restoreContext;
_onFinish = onFinish;
}
protected IGlPlatformSurfaceRenderingSession BeginDraw(EglSurface surface,
EglGlPlatformSurfaceBase.IEglWindowGlPlatformSurfaceInfo info, Action onFinish = null, bool isYFlipped = false)
{
var l = _context.Lock();
try
{
if (IsCorrupted)
{
throw new RenderTargetCorruptedException();
}
var restoreContext = _context.MakeCurrent(surface);
_display.EglInterface.WaitClient();
_display.EglInterface.WaitGL();
_display.EglInterface.WaitNative(EglConsts.EGL_CORE_NATIVE_ENGINE);
return(new Session(_display, _context, surface, info, l, restoreContext, onFinish, isYFlipped));
}
catch
{
l.Dispose();
throw;
}
}
public RenderTarget(EglContext context, EglSurface glSurface, IEglWindowGlPlatformSurfaceInfo info)
{
_context = context;
_glSurface = glSurface;
_info = info;
}