public SDL2GameView(string title, int width, int height, bool fullscreen = false, bool vsync = true,
int x = SDL.SDL_WINDOWPOS_CENTERED, int y = SDL.SDL_WINDOWPOS_CENTERED)
{
_refCount++;
_width = width;
_height = height;
_frameArgs = new FrameArgs();
_frameArgs.Enqueue(new Start(new Vector2(_width, _height), 1.0f));
_frameArgs.Enqueue(new Resize(new Vector2(_width, _height), 1.0f));
_sdlEvents = new ConcurrentQueue <SDL.SDL_Event>();
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_CONTEXT_MAJOR_VERSION, 3);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_CONTEXT_MINOR_VERSION, 1);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_CONTEXT_PROFILE_MASK, (int)SDL.SDL_GLprofile.SDL_GL_CONTEXT_PROFILE_CORE);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_RED_SIZE, 8);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_GREEN_SIZE, 8);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_BLUE_SIZE, 8);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_DEPTH_SIZE, 24);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_MULTISAMPLEBUFFERS, 1);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_MULTISAMPLESAMPLES, 4);
if (vsync)
{
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_DOUBLEBUFFER, 1);
}
_window = SDL.SDL_CreateWindow(
title,
x, y,
width, height,
SDL.SDL_WindowFlags.SDL_WINDOW_OPENGL
| (fullscreen ? SDL.SDL_WindowFlags.SDL_WINDOW_FULLSCREEN : 0)
);
if (_window == IntPtr.Zero)
{
throw new SDL2Exception();
}
if (_alContext == null)
{
_alContext = new AudioContext();
_alContext.MakeCurrent();
}
if (vsync)
{
SDL.SDL_GL_SetSwapInterval(1);
}
_windowId = SDL.SDL_GetWindowID(_window);
}
public SDL2GameView (string title, int width, int height, bool fullscreen = false, bool vsync = true,
int x = SDL.SDL_WINDOWPOS_CENTERED, int y = SDL.SDL_WINDOWPOS_CENTERED) {
_refCount++;
_width = width;
_height = height;
_frameArgs = new FrameArgs();
_frameArgs.Enqueue(new Start(new Vector2(_width, _height), 1.0f));
_frameArgs.Enqueue(new Resize(new Vector2(_width, _height), 1.0f));
_sdlEvents = new ConcurrentQueue<SDL.SDL_Event>();
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_CONTEXT_MINOR_VERSION, 1);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_CONTEXT_PROFILE_MASK, (int)SDL.SDL_GLprofile.SDL_GL_CONTEXT_PROFILE_COMPATIBILITY);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_RED_SIZE, 8);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_GREEN_SIZE, 8);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_BLUE_SIZE, 8);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_DEPTH_SIZE, 24);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_MULTISAMPLEBUFFERS, 1);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_MULTISAMPLESAMPLES, 4);
_window = SDL.SDL_CreateWindow(
title,
x, y,
width, height,
SDL.SDL_WindowFlags.SDL_WINDOW_OPENGL
| (fullscreen ? SDL.SDL_WindowFlags.SDL_WINDOW_FULLSCREEN : 0)
);
if (_window == IntPtr.Zero)
throw new SDL2Exception();
if (_alContext == null) {
_alContext = new AudioContext();
_alContext.MakeCurrent();
}
if(vsync)
SDL.SDL_GL_SetSwapInterval(1);
_windowId = SDL.SDL_GetWindowID(_window);
}
void OnUpdate()
{
bool lowMem = false;
while (_events.Count > 0)
{
EventBase e;
_events.TryDequeue(out e);
_frame.Enqueue(e);
if (e is Pause)
{
DoUpdate();
_link.RemoveFromRunLoop(NSRunLoop.Current, NSRunLoop.NSDefaultRunLoopMode);
_link.Dispose();
return;
}
else if (e is LowMemory)
{
lowMem = true;
}
else if (e is Resize)
{
this.InvokeOnMainThread(() => {
EAGLContext.SetCurrentContext(_glContext);
this.Initialize(false);
});
}
}
DoUpdate();
_frame.ClearEvents();
if (lowMem)
{
_lowMemHandled = true;
}
}
void IRenderer.OnDrawFrame(Javax.Microedition.Khronos.Opengles.IGL10 gl)
{
EventBase e;
if (this.IsPaused)
{
while (_queue.TryPeek(out e))
{
if (e is Resume)
{
this.IsPaused = false;
return;
}
else
{
_queue.TryDequeue(out e);
}
}
Thread.Sleep(_minFrameTicks);
return;
}
var ticks = Environment.TickCount;
var diffTicks = ticks - _lastTicks;
if (diffTicks <= 0)
{
return;
}
if (diffTicks < _minFrameTicks)
{
Thread.Sleep(_minFrameTicks - diffTicks);
ticks = Environment.TickCount;
diffTicks = ticks - _lastTicks;
}
_lastTicks = ticks;
_event.Time = (double)ticks / 1000.0;
_event.DeltaTime = (float)diffTicks / 1000f;
if (_loadFrame > 0)
{
_event.DeltaTime = 1f / 60f;
_loadFrame--;
}
while (_queue.TryDequeue(out e))
{
_event.Enqueue(e);
if (e is Pause)
{
this.IsPaused = true;
}
}
ThreadContext.Current.GLContext = this.Handle;
if (this.Update != null)
{
this.Update(this, _event);
}
if (this.Render != null)
{
this.Render(this, _event);
}
_event.ClearEvents();
}
void ProcessEvent(SDL.SDL_Event e)
{
if (Event != null)
{
Event(this, new SDL2EventArgs(e));
}
switch (e.type)
{
case SDL.SDL_EventType.SDL_QUIT:
this.CloseWindow();
break;
case SDL.SDL_EventType.SDL_WINDOWEVENT:
if (e.window.windowID == _windowId && e.window.windowEvent == SDL.SDL_WindowEventID.SDL_WINDOWEVENT_CLOSE)
{
this.CloseWindow();
}
break;
case SDL.SDL_EventType.SDL_MOUSEBUTTONDOWN:
case SDL.SDL_EventType.SDL_MOUSEBUTTONUP:
if (e.button.windowID != _windowId)
{
return;
}
if (e.button.which != SDL.SDL_TOUCH_MOUSEID && e.button.button == SDL.SDL_BUTTON_LEFT)
{
_frameArgs.Enqueue(new Touch(
e.type == SDL.SDL_EventType.SDL_MOUSEBUTTONDOWN ? TouchState.Start : TouchState.End,
NormalizeToViewport(e.button.x, e.button.y),
new Vector2(e.button.x, _height - e.button.y),
0,
true
));
_mouseDrag = e.type == SDL.SDL_EventType.SDL_MOUSEBUTTONDOWN;
}
break;
case SDL.SDL_EventType.SDL_MOUSEMOTION:
if (e.motion.windowID != _windowId)
{
return;
}
if (e.motion.which != SDL.SDL_TOUCH_MOUSEID && _mouseDrag)
{
_frameArgs.Enqueue(new Touch(
TouchState.Move,
NormalizeToViewport(e.button.x, e.button.y),
new Vector2(e.button.x, _height - e.button.y),
0,
true
));
}
break;
case SDL.SDL_EventType.SDL_KEYDOWN:
case SDL.SDL_EventType.SDL_KEYUP:
if (e.key.windowID != _windowId)
{
return;
}
var sym = (int)e.key.keysym.sym;
_frameArgs.Enqueue(new KeyEvent(
e.key.repeat > 0 ? KeyState.Repeat : (e.key.type == SDL.SDL_EventType.SDL_KEYUP ? KeyState.Down : KeyState.Up),
(KeyModifier)e.key.keysym.mod,
(int)e.key.keysym.scancode,
(char)(sym <= 255 ? sym : 0)
));
break;
case SDL.SDL_EventType.SDL_FINGERUP:
case SDL.SDL_EventType.SDL_FINGERDOWN:
case SDL.SDL_EventType.SDL_FINGERMOTION:
_frameArgs.Enqueue(new Touch(
e.type == SDL.SDL_EventType.SDL_FINGERDOWN ? TouchState.Start : (e.type == SDL.SDL_EventType.SDL_FINGERUP ? TouchState.End : TouchState.Move),
NormalizeToViewport((int)e.tfinger.x, (int)e.tfinger.y),
new Vector2(e.tfinger.x, _height - e.tfinger.y),
e.tfinger.fingerId
));
break;
}
}