#include "SDLmain_WinRT_common.h"

#include "SDL_WinRTApp.h"

#include "BasicTimer.h"

extern "C" {

#include "SDL_assert.h"

#include "SDL_stdinc.h"

#include "../SDL_sysvideo.h"

}

// HACK, DLudwig: The C-style main() will get loaded via the app's

// WinRT-styled main(), which is part of SDLmain_for_WinRT.cpp.

// This seems wrong on some level, but does seem to work.

typedef int (*SDL_WinRT_MainFunction)(int, char **);

static SDL_WinRT_MainFunction SDL_WinRT_main = nullptr;

// HACK, DLudwig: record a reference to the global, Windows RT 'app'/view.

// SDL/WinRT will use this throughout its code.

//

// TODO, WinRT: consider replacing SDL_WinRTGlobalApp with something

// non-global, such as something created inside

// SDL_InitSubSystem(SDL_INIT_VIDEO), or something inside

// SDL_CreateWindow().

SDL_WinRTApp ^ SDL_WinRTGlobalApp = nullptr;

using namespace Windows::ApplicationModel;

using namespace Windows::ApplicationModel::Core;

using namespace Windows::ApplicationModel::Activation;

using namespace Windows::UI::Core;

using namespace Windows::System;

using namespace Windows::Foundation;

using namespace Windows::Graphics::Display;

using namespace concurrency;

SDL_WinRTApp::SDL_WinRTApp() :

m_windowClosed(false),

m_windowVisible(true)

{

}

void SDL_WinRTApp::Initialize(CoreApplicationView^ applicationView)

{

applicationView->Activated +=

ref new TypedEventHandler<CoreApplicationView^, IActivatedEventArgs^>(this, &SDL_WinRTApp::OnActivated);

CoreApplication::Suspending +=

ref new EventHandler<SuspendingEventArgs^>(this, &SDL_WinRTApp::OnSuspending);

CoreApplication::Resuming +=

ref new EventHandler<Platform::Object^>(this, &SDL_WinRTApp::OnResuming);

m_renderer = ref new CubeRenderer();

}

void SDL_WinRTApp::SetWindow(CoreWindow^ window)

{

window->SizeChanged +=

ref new TypedEventHandler<CoreWindow^, WindowSizeChangedEventArgs^>(this, &SDL_WinRTApp::OnWindowSizeChanged);

window->VisibilityChanged +=

ref new TypedEventHandler<CoreWindow^, VisibilityChangedEventArgs^>(this, &SDL_WinRTApp::OnVisibilityChanged);

window->Closed +=

ref new TypedEventHandler<CoreWindow^, CoreWindowEventArgs^>(this, &SDL_WinRTApp::OnWindowClosed);

window->PointerCursor = ref new CoreCursor(CoreCursorType::Arrow, 0);

window->PointerPressed +=

ref new TypedEventHandler<CoreWindow^, PointerEventArgs^>(this, &SDL_WinRTApp::OnPointerPressed);

window->PointerMoved +=

ref new TypedEventHandler<CoreWindow^, PointerEventArgs^>(this, &SDL_WinRTApp::OnPointerMoved);

m_renderer->Initialize(CoreWindow::GetForCurrentThread());

}

void SDL_WinRTApp::Load(Platform::String^ entryPoint)

{

}

void SDL_WinRTApp::Run()

{

if (SDL_WinRT_main)

{

// TODO, WinRT: pass the C-style main() a reasonably realistic

// representation of command line arguments.

int argc = 0;

char **argv = NULL;

SDL_WinRT_main(argc, argv);

}

BasicTimer^ timer = ref new BasicTimer();

while (!m_windowClosed)

{

if (m_windowVisible)

{

timer->Update();

CoreWindow::GetForCurrentThread()->Dispatcher->ProcessEvents(CoreProcessEventsOption::ProcessAllIfPresent);

m_renderer->Update(timer->Total, timer->Delta);

m_renderer->Render();

m_renderer->Present(); // This call is synchronized to the display frame rate.

}

else

{

CoreWindow::GetForCurrentThread()->Dispatcher->ProcessEvents(CoreProcessEventsOption::ProcessOneAndAllPending);

}

}

}

void SDL_WinRTApp::Uninitialize()

{

}

void SDL_WinRTApp::OnWindowSizeChanged(CoreWindow^ sender, WindowSizeChangedEventArgs^ args)

{

m_renderer->UpdateForWindowSizeChange();

}

void SDL_WinRTApp::OnVisibilityChanged(CoreWindow^ sender, VisibilityChangedEventArgs^ args)

{

m_windowVisible = args->Visible;

}

void SDL_WinRTApp::OnWindowClosed(CoreWindow^ sender, CoreWindowEventArgs^ args)

{

m_windowClosed = true;

}

void SDL_WinRTApp::OnPointerPressed(CoreWindow^ sender, PointerEventArgs^ args)

{

// Insert your code here.

}

void SDL_WinRTApp::OnPointerMoved(CoreWindow^ sender, PointerEventArgs^ args)

{

// Insert your code here.

}

void SDL_WinRTApp::OnActivated(CoreApplicationView^ applicationView, IActivatedEventArgs^ args)

{

CoreWindow::GetForCurrentThread()->Activate();

}

void SDL_WinRTApp::OnSuspending(Platform::Object^ sender, SuspendingEventArgs^ args)

{

// Save app state asynchronously after requesting a deferral. Holding a deferral

// indicates that the application is busy performing suspending operations. Be

// aware that a deferral may not be held indefinitely. After about five seconds,

// the app will be forced to exit.

SuspendingDeferral^ deferral = args->SuspendingOperation->GetDeferral();

create_task([this, deferral]()

{

// Insert your code here.

deferral->Complete();

});

}

void SDL_WinRTApp::OnResuming(Platform::Object^ sender, Platform::Object^ args)

{

// Restore any data or state that was unloaded on suspend. By default, data

// and state are persisted when resuming from suspend. Note that this event

// does not occur if the app was previously terminated.

}

SDL_DisplayMode SDL_WinRTApp::GetMainDisplayMode()

{

SDL_DisplayMode mode;

SDL_zero(mode);

mode.format = SDL_PIXELFORMAT_RGB888;

mode.w = (int) CoreWindow::GetForCurrentThread()->Bounds.Width;

mode.h = (int) CoreWindow::GetForCurrentThread()->Bounds.Height;

mode.refresh_rate = 0; // TODO, WinRT: see if refresh rate data is available, or relevant (for WinRT apps)

mode.driverdata = NULL;

return mode;

}

IFrameworkView^ Direct3DApplicationSource::CreateView()

{

// TODO, WinRT: see if this function (CreateView) can ever get called

// more than once. For now, just prevent it from ever assigning

// SDL_WinRTGlobalApp more than once.

SDL_assert(!SDL_WinRTGlobalApp);

SDL_WinRTApp ^ app = ref new SDL_WinRTApp();

if (!SDL_WinRTGlobalApp)

{

SDL_WinRTGlobalApp = app;

}

return app;

}

SDL_WinRT_main = mainFunction;

auto direct3DApplicationSource = ref new Direct3DApplicationSource();

CoreApplication::Run(direct3DApplicationSource);

return 0;

}