public void Run()
{
//Try to set DPI Awareness on Win32
if (Platform.RunningOS == OS.Windows)
{
try {
SetProcessDPIAware();
}
catch {
}
}
FLLog.Info("Engine", "Version: " + Platform.GetInformationalVersion <Game>());
//TODO: This makes i5-7200U on mesa 18 faster, but this should probably be a configurable option
bool setMesaThread = string.IsNullOrWhiteSpace(Environment.GetEnvironmentVariable("mesa_glthread"));
if (setMesaThread)
{
Environment.SetEnvironmentVariable("mesa_glthread", "true");
}
if (SDL.SDL_Init(SDL.SDL_INIT_VIDEO) != 0)
{
FLLog.Error("SDL", "SDL_Init failed, exiting.");
return;
}
SDL.SDL_SetHint(SDL.SDL_HINT_IME_INTERNAL_EDITING, "1");
SDL.SDL_SetHint(SDL.SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0");
//Set GL states
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_DEPTH_SIZE, 24);
//Create Window
var flags = SDL.SDL_WindowFlags.SDL_WINDOW_OPENGL | SDL.SDL_WindowFlags.SDL_WINDOW_RESIZABLE |
SDL.SDL_WindowFlags.SDL_WINDOW_ALLOW_HIGHDPI;
if (fullscreen)
{
flags |= SDL.SDL_WindowFlags.SDL_WINDOW_FULLSCREEN_DESKTOP;
}
var sdlWin = SDL.SDL_CreateWindow(
"LibreLancer",
SDL.SDL_WINDOWPOS_CENTERED,
SDL.SDL_WINDOWPOS_CENTERED,
width,
height,
flags
);
//Cursors
curArrow = SDL.SDL_CreateSystemCursor(SDL.SDL_SystemCursor.SDL_SYSTEM_CURSOR_ARROW);
curMove = SDL.SDL_CreateSystemCursor(SDL.SDL_SystemCursor.SDL_SYSTEM_CURSOR_CROSSHAIR);
curTextInput = SDL.SDL_CreateSystemCursor(SDL.SDL_SystemCursor.SDL_SYSTEM_CURSOR_IBEAM);
curResizeNS = SDL.SDL_CreateSystemCursor(SDL.SDL_SystemCursor.SDL_SYSTEM_CURSOR_SIZENS);
curResizeEW = SDL.SDL_CreateSystemCursor(SDL.SDL_SystemCursor.SDL_SYSTEM_CURSOR_SIZEWE);
curResizeNESW = SDL.SDL_CreateSystemCursor(SDL.SDL_SystemCursor.SDL_SYSTEM_CURSOR_SIZENESW);
curResizeNWSE = SDL.SDL_CreateSystemCursor(SDL.SDL_SystemCursor.SDL_SYSTEM_CURSOR_SIZENWSE);
//Window sizing
if (minWindowSize != Point.Zero)
{
SDL.SDL_SetWindowMinimumSize(sdlWin, minWindowSize.X, minWindowSize.Y);
}
if (sdlWin == IntPtr.Zero)
{
Dialogs.CrashWindow.Run("Librelancer", "Failed to create SDL window",
"SDL Error: " + (SDL.SDL_GetError() ?? ""));
return;
}
SDL.SDL_EventState(SDL.SDL_EventType.SDL_DROPFILE, SDL.SDL_ENABLE);
windowptr = sdlWin;
IntPtr glcontext = IntPtr.Zero;
if (Environment.GetEnvironmentVariable("LIBRELANCER_RENDERER") == "GLES" ||
!CreateContextCore(sdlWin, out glcontext))
{
if (!CreateContextES(sdlWin, out glcontext))
{
Dialogs.CrashWindow.Run("Librelancer", "Failed to create OpenGL context",
"Your driver or gpu does not support at least OpenGL 3.2 or OpenGL ES 3.1\n" + SDL.SDL_GetError() ?? "");
return;
}
}
GL.LoadSDL();
Renderer = string.Format("{0} ({1})", GL.GetString(GL.GL_VERSION), GL.GetString(GL.GL_RENDERER));
FLLog.Info("GL", $"Renderer: {GL.GetString(GL.GL_RENDERER)}");
SetVSync(true);
//Init game state
RenderContext = new RenderContext();
SDL.SDL_GetWindowSize(sdlWin, out int windowWidth, out int windowHeight);
SDL.SDL_GL_GetDrawableSize(sdlWin, out width, out height);
var scaleW = (float)width / windowWidth;
var scaleH = (float)height / windowHeight;
if (Platform.RunningOS != OS.Windows)
{
DpiScale = scaleH;
}
else
{
if (SDL.SDL_GetDisplayDPI(0, out float ddpi, out _, out _) == 0)
{
DpiScale = ddpi / 96.0f;
}
}
FLLog.Info("GL", $"Dpi Scale: {DpiScale:F4}");
Load();
//kill the value we set so it doesn't crash child processes
if (setMesaThread)
{
Environment.SetEnvironmentVariable("mesa_glthread", null);
}
//Start game
running = true;
timer = new Stopwatch();
timer.Start();
double last = 0;
double elapsed = 0;
SDL.SDL_Event e = new SDL.SDL_Event();
SDL.SDL_StopTextInput();
MouseButtons doRelease = 0;
while (running)
{
//Window State
var winFlags = (SDL.SDL_WindowFlags)SDL.SDL_GetWindowFlags(sdlWin);
Focused = (winFlags & SDL.SDL_WindowFlags.SDL_WINDOW_MOUSE_FOCUS) ==
SDL.SDL_WindowFlags.SDL_WINDOW_MOUSE_FOCUS ||
(winFlags & SDL.SDL_WindowFlags.SDL_WINDOW_INPUT_FOCUS) ==
SDL.SDL_WindowFlags.SDL_WINDOW_INPUT_FOCUS;
EventsThisFrame = false;
//Get Size
SDL.SDL_GetWindowSize(sdlWin, out windowWidth, out windowHeight);
SDL.SDL_GL_GetDrawableSize(sdlWin, out width, out height);
scaleW = (float)width / windowWidth;
scaleH = (float)height / windowHeight;
if (Platform.RunningOS != OS.Windows)
{
DpiScale = scaleH;
}
//This allows for press/release in same frame to have
//button down for one frame, e.g. trackpoint middle click on Linux/libinput.
MouseButtons pressedThisFrame = 0;
Mouse.Buttons &= ~doRelease;
doRelease = 0;
bool eventWaited = false;
if (waitForEvent)
{
waitForEvent = false;
if (SDL.SDL_WaitEventTimeout(out e, 2000) != 0)
{
eventWaited = true;
}
}
Mouse.Wheel = 0;
//Pump message queue
while (eventWaited || SDL.SDL_PollEvent(out e) != 0)
{
eventWaited = false;
EventsThisFrame = true;
switch (e.type)
{
case SDL.SDL_EventType.SDL_QUIT:
{
if (WillClose != null)
{
WillClose();
}
running = false; //TODO: Raise Event
break;
}
case SDL.SDL_EventType.SDL_MOUSEMOTION:
{
Mouse.X = (int)(scaleW * e.motion.x);
Mouse.Y = (int)(scaleH * e.motion.y);
Mouse.OnMouseMove();
break;
}
case SDL.SDL_EventType.SDL_MOUSEBUTTONDOWN:
{
Mouse.X = (int)(scaleW * e.button.x);
Mouse.Y = (int)(scaleH * e.button.y);
var btn = GetMouseButton(e.button.button);
Mouse.Buttons |= btn;
pressedThisFrame |= btn;
Mouse.OnMouseDown(btn);
break;
}
case SDL.SDL_EventType.SDL_MOUSEBUTTONUP:
{
Mouse.X = (int)(scaleW * e.button.x);
Mouse.Y = (int)(scaleH * e.button.y);
var btn = GetMouseButton(e.button.button);
if ((pressedThisFrame & btn) == btn)
{
doRelease |= btn;
}
else
{
Mouse.Buttons &= ~btn;
}
Mouse.OnMouseUp(btn);
break;
}
case SDL.SDL_EventType.SDL_MOUSEWHEEL:
{
Mouse.Wheel += e.wheel.y;
break;
}
case SDL.SDL_EventType.SDL_TEXTINPUT:
{
Keyboard.OnTextInput(GetEventText(ref e));
break;
}
case SDL.SDL_EventType.SDL_KEYDOWN:
{
Keyboard.OnKeyDown((Keys)e.key.keysym.scancode, (KeyModifiers)e.key.keysym.mod, e.key.repeat != 0);
break;
}
case SDL.SDL_EventType.SDL_KEYUP:
{
Keyboard.OnKeyUp((Keys)e.key.keysym.scancode, (KeyModifiers)e.key.keysym.mod);
break;
}
case SDL.SDL_EventType.SDL_KEYMAPCHANGED:
KeysExtensions.ResetKeyNames();
break;
case SDL.SDL_EventType.SDL_WINDOWEVENT:
if (e.window.windowEvent == SDL.SDL_WindowEventID.SDL_WINDOWEVENT_RESIZED)
{
OnResize();
}
break;
case SDL.SDL_EventType.SDL_DROPFILE:
{
var file = UnsafeHelpers.PtrToStringUTF8(e.drop.file);
OnDrop(file);
SDL.SDL_free(e.drop.file);
break;
}
}
}
Mouse.Wheel /= 2.5f;
//Do game things
if (!running)
{
break;
}
Action work;
while (actions.TryDequeue(out work))
{
work();
}
totalTime = timer.Elapsed.TotalSeconds;
Update(elapsed);
if (!running)
{
break;
}
Draw(elapsed);
RenderContext.EndFrame();
//Frame time before, FPS after
var tk = timer.Elapsed.TotalSeconds - totalTime;
frameTime = CalcAverageTime(tk);
if (_screenshot)
{
TakeScreenshot();
_screenshot = false;
}
SDL.SDL_GL_SwapWindow(sdlWin);
if (GL.FrameHadErrors()) //If there was a GL error, track it down.
{
GL.ErrorChecking = true;
}
elapsed = timer.Elapsed.TotalSeconds - last;
renderFrequency = (1.0 / CalcAverageTick(elapsed));
last = timer.Elapsed.TotalSeconds;
totalTime = timer.Elapsed.TotalSeconds;
if (elapsed < 0)
{
elapsed = 0;
FLLog.Warning("Timing", "Stopwatch returned negative time!");
}
}
Cleanup();
SDL.SDL_Quit();
}
