private static unsafe void Main(string[] args)
{
var parsedOpts = Parser.Default.ParseArguments <Options>(args);
parsedOpts.WithParsed(opts => {
if (opts.Context != null)
{
_useEgl = opts.Context.Contains("egl");
}
if (opts.GlApi != null)
{
_automaticFallback = false;
_useOpenGl = !opts.GlApi.Contains("es");
_useOpenGl = true;
}
if (opts.GlMajorVersion != null)
{
_automaticFallback = false;
_glMaj = opts.GlMajorVersion.Value;
}
if (opts.GlMinorVersion != null)
{
_automaticFallback = false;
_glMin = opts.GlMinorVersion.Value;
}
});
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
Console.OutputEncoding = Encoding.UTF8;
Ansi.WindowsConsole.TryEnableVirtualTerminalProcessing();
}
AppDomain.CurrentDomain.UnhandledException += OnUnhandledException;
AppDomain.CurrentDomain.FirstChanceException += OnFirstChanceException;
//InjectNsight();
//InjectRenderDoc();
var options = WindowOptions.Default;
var size = new Size(1024, 576);
var title = "UltralightSharp - Silk.NET";
options.Size = size;
options.Title = title;
options.VSync = VSyncMode.On;
options.TransparentFramebuffer = false;
options.PreferredDepthBufferBits = null;
//options.VSync = true;
/*
* if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux)) {
* var asmDir = Path.GetDirectoryName(new Uri(typeof(Program).Assembly.CodeBase!).LocalPath)!;
* var glfwPath = Path.Combine(asmDir, "libglfw.so.3");
* const string sysGlfwPath = "/lib/libglfw.so.3";
* if (File.Exists(sysGlfwPath)) {
* var sb = new StringBuilder(1024);
* var sbSize = (UIntPtr)sb.Capacity;
* var used = (long)Libc.readlink(glfwPath, sb, sbSize);
* if (used >= 0) {
* var link = sb.ToString(0, (int)(used - 1));
* if (link != sysGlfwPath) {
* File.Delete(glfwPath);
* Libc.symlink(sysGlfwPath, glfwPath);
* }
* }
* else {
* // not a link
* File.Delete(glfwPath);
* Libc.symlink(sysGlfwPath, glfwPath);
* Cleanup += () => {
* File.Delete(glfwPath);
* };
* }
* }
* }
*/
_glfw = Glfw.GetApi();
Console.WriteLine($"GLFW v{_glfw.GetVersionString()}");
if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
_glfw.InitHint(InitHint.CocoaMenubar, false);
_glfw.InitHint(InitHint.CocoaChdirResources, false);
}
_glfw = GlfwProvider.GLFW.Value;
{
// setup logging
Ultralight.SetLogger(new Logger {
LogMessage = LoggerCallback
});
var tempDir = Path.GetTempPath();
// find a place to stash instance storage
do
{
_storagePath = Path.Combine(tempDir, Guid.NewGuid().ToString());
}while (Directory.Exists(_storagePath) || File.Exists(_storagePath));
AppCore.EnablePlatformFontLoader();
AppCore.EnablePlatformFileSystem(AssetsDir);
}
/* afaik GLFW already does this, this was just to check
* if (_useEgl || _automaticFallback) {
* Console.WriteLine("Binding to LibEGL...");
* var eglLib = new UnmanagedLibrary(
* new CustomEglLibNameContainer().GetLibraryName(),
* LibraryLoader.GetPlatformDefaultLoader()
* );
* var q = eglLib.LoadFunction("eglQueryAPI");
* IL.Push(q);
* IL.Emit.Calli(StandAloneMethodSig.UnmanagedMethod(CallingConvention.Cdecl, typeof(EGLEnum)));
* IL.Pop(out EGLEnum api);
* Console.WriteLine($"EGL API Target: {api}");
* var b = eglLib.LoadFunction("eglBindAPI");
* if (_useOpenGL && api != EGLEnum.OpenglApi) {
* IL.Push(EGLEnum.OpenglApi);
* IL.Push(b);
* IL.Emit.Calli(StandAloneMethodSig.UnmanagedMethod(CallingConvention.Cdecl, typeof(bool),
* typeof(EGLEnum)));
* IL.Pop(out bool success);
* Console.Error.WriteLine(!success
* ? "Couldn't bind EGL to OpenGL"
* : "EGL now bound to OpenGL");
* }
* else if (!_useOpenGL && api != EGLEnum.OpenglESApi){
* IL.Push(EGLEnum.OpenglESApi);
* IL.Push(b);
* IL.Emit.Calli(StandAloneMethodSig.UnmanagedMethod(CallingConvention.Cdecl, typeof(bool),
* typeof(EGLEnum)));
* IL.Pop(out bool success);
* Console.Error.WriteLine(!success
* ? "Couldn't bind EGL to OpenGL ES"
* : "EGL now bound to OpenGL ES");
* }
* }
*/
if (_automaticFallback)
{
Console.WriteLine("Checking for supported context...");
for (;;)
{
SetGlfwWindowHints();
Console.WriteLine(
_useOpenGl
? "Attempting OpenGL v3.2 (Core)"
: $"Attempting OpenGL ES v{_majOES}.0");
var wh = _glfw.CreateWindow(1024, 576, title, null, null);
if (wh != null)
{
Console.WriteLine(
_useOpenGl
? "Created Window with OpenGL v3.2 (Core)"
: $"Created Window with OpenGL ES v{_majOES}.0");
_glfw.DestroyWindow(wh);
break;
}
var code = _glfw.GetError(out char *pDesc);
if (code == ErrorCode.NoError || pDesc == null)
{
throw new PlatformNotSupportedException("Can't create a window via GLFW. Unknown error.");
}
var strLen = new ReadOnlySpan <byte>((byte *)pDesc, 32768).IndexOf <byte>(0);
if (strLen == -1)
{
strLen = 0;
}
var str = new string((sbyte *)pDesc, 0, strLen, Encoding.UTF8);
var errMsg = $"{code}: {str}";
Console.Error.WriteLine(errMsg);
if (code != ErrorCode.VersionUnavailable)
{
throw new GlfwException(errMsg);
}
// attempt sequence: OpenGL ES 3.0, OpenGL 3.2, OpenGL ES 2.0
if (!_useOpenGl && _majOES == 3)
{
_useOpenGl = true;
}
else if (_majOES == 3 && _useOpenGl)
{
_useOpenGl = false;
_majOES = 2;
}
else
{
throw new GlfwException(errMsg);
}
}
}
SetGlfwWindowHints();
if (_useOpenGl)
{
options.API = new GraphicsAPI(
ContextAPI.OpenGL,
ContextProfile.Core,
ContextFlags.ForwardCompatible,
new APIVersion(_automaticFallback ? 3 : _glMaj, _automaticFallback ? 2 : _glMin)
);
}
else
{
options.API = new GraphicsAPI(
ContextAPI.OpenGLES,
ContextProfile.Core,
ContextFlags.ForwardCompatible,
new APIVersion(_automaticFallback ? _majOES : _glMaj, _automaticFallback ? 0 : _glMin)
);
}
options.IsVisible = true;
options.WindowBorder = WindowBorder.Resizable;
options.WindowState = WindowState.Normal;
Console.WriteLine("Creating window...");
_snView = Window.Create(options);
_snView.Load += OnLoad;
_snView.Render += OnRender;
_snView.Update += OnUpdate;
_snView.Closing += OnClose;
_snView.Resize += OnResize;
var glCtx = _snView.GLContext;
if (!_useOpenGl)
{
Console.WriteLine("Binding to LibGLES...");
_gl = LibraryActivator.CreateInstance <GL>
(
new CustomGlEsLibNameContainer().GetLibraryName(),
TemporarySuperInvokeClass.GetLoader(glCtx)
);
}
Console.WriteLine("Initializing window...");
_snView.Initialize();
if (_snView.Handle == IntPtr.Zero)
{
var code = _glfw.GetError(out char *pDesc);
if (code == ErrorCode.NoError || pDesc == null)
{
throw new PlatformNotSupportedException("Can't create a window via GLFW. Unknown error.");
}
var strLen = new ReadOnlySpan <byte>((byte *)pDesc, 32768).IndexOf <byte>(0);
if (strLen == -1)
{
strLen = 0;
}
var str = new string((sbyte *)pDesc, 0, strLen, Encoding.UTF8);
throw new GlfwException($"{code}: {str}");
}
Console.WriteLine("Starting main loop...");
_snView.Run();
}