#include <string>

#include <unordered_map>

#include <sstream>

#include "ppltasks.h"

extern "C" {

#include "SDL_assert.h"

#include "SDL_events.h"

#include "SDL_hints.h"

#include "SDL_log.h"

#include "SDL_stdinc.h"

#include "SDL_render.h"

#include "../SDL_sysvideo.h"

#include "../../events/scancodes_windows.h"

#include "../../events/SDL_mouse_c.h"

#include "../../events/SDL_keyboard_c.h"

#include "../../events/SDL_windowevents_c.h"

#include "../../render/SDL_sysrender.h"

}

#include "SDL_winrtvideo.h"

#include "SDL_WinRTApp.h"

using namespace concurrency;

using namespace std;

using namespace Windows::ApplicationModel;

using namespace Windows::ApplicationModel::Core;

using namespace Windows::ApplicationModel::Activation;

using namespace Windows::Devices::Input;

using namespace Windows::Graphics::Display;

using namespace Windows::Foundation;

using namespace Windows::System;

using namespace Windows::UI::Core;

using namespace Windows::UI::Input;

// Compile-time debugging options:

// To enable, uncomment; to disable, comment them out.

//#define LOG_POINTER_EVENTS 1

//#define LOG_WINDOW_EVENTS 1

//#define LOG_ORIENTATION_EVENTS 1

// 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;

ref class SDLApplicationSource sealed : Windows::ApplicationModel::Core::IFrameworkViewSource

{

public:

virtual Windows::ApplicationModel::Core::IFrameworkView^ CreateView();

};

IFrameworkView^ SDLApplicationSource::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;

}

__declspec(dllexport) int SDL_WinRT_RunApplication(SDL_WinRT_MainFunction mainFunction)

{

SDL_WinRT_main = mainFunction;

auto direct3DApplicationSource = ref new SDLApplicationSource();

CoreApplication::Run(direct3DApplicationSource);

return 0;

}

{

SDL_assert(SDL_strcmp(name, SDL_HINT_ORIENTATIONS) == 0);

// Start with no orientation flags, then add each in as they're parsed

// from newValue.

unsigned int orientationFlags = 0;

std::istringstream tokenizer(newValue);

while (!tokenizer.eof()) {

std::string orientationName;

std::getline(tokenizer, orientationName, ' ');

if (orientationName == "LandscapeLeft") {

orientationFlags |= (unsigned int) DisplayOrientations::LandscapeFlipped;

} else if (orientationName == "LandscapeRight") {

orientationFlags |= (unsigned int) DisplayOrientations::Landscape;

} else if (orientationName == "Portrait") {

orientationFlags |= (unsigned int) DisplayOrientations::Portrait;

} else if (orientationName == "PortraitUpsideDown") {

orientationFlags |= (unsigned int) DisplayOrientations::PortraitFlipped;

}

}

// If no valid orientation flags were specified, use a reasonable set of defaults:

if (!orientationFlags) {

// TODO, WinRT: consider seeing if an app's default orientation flags can be found out via some API call(s).

orientationFlags = (unsigned int) ( \

DisplayOrientations::Landscape |

DisplayOrientations::LandscapeFlipped |

DisplayOrientations::Portrait |

DisplayOrientations::PortraitFlipped);

}

// Set the orientation/rotation preferences. Please note that this does

// not constitute a 100%-certain lock of a given set of possible

// orientations. According to Microsoft's documentation on Windows RT [1]

// when a device is not capable of being rotated, Windows may ignore

// the orientation preferences, and stick to what the device is capable of

// displaying.

//

// [1] Documentation on the 'InitialRotationPreference' setting for a

// Windows app's manifest file describes how some orientation/rotation

// preferences may be ignored. See

// http://msdn.microsoft.com/en-us/library/windows/apps/hh700343.aspx

// for details. Microsoft's "Display orientation sample" also gives an

// outline of how Windows treats device rotation

// (http://code.msdn.microsoft.com/Display-Orientation-Sample-19a58e93).

DisplayProperties::AutoRotationPreferences = (DisplayOrientations) orientationFlags;

}

SDL_WinRTApp::SDL_WinRTApp() :

m_windowClosed(false),

m_windowVisible(true),

m_sdlWindowData(NULL),

m_sdlVideoDevice(NULL),

m_useRelativeMouseMode(false)

{

}

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);

DisplayProperties::OrientationChanged +=

ref new DisplayPropertiesEventHandler(this, &SDL_WinRTApp::OnOrientationChanged);

// Register the hint, SDL_HINT_ORIENTATIONS, with SDL. This needs to be

// done before the hint's callback is registered (as of Feb 22, 2013),

// otherwise the hint callback won't get registered.

//

// WinRT, TODO: see if an app's default orientation can be found out via WinRT API(s), then set the initial value of SDL_HINT_ORIENTATIONS accordingly.

//SDL_SetHint(SDL_HINT_ORIENTATIONS, "LandscapeLeft LandscapeRight Portrait PortraitUpsideDown"); // DavidL: this is no longer needed (for SDL_AddHintCallback)

SDL_AddHintCallback(SDL_HINT_ORIENTATIONS, WINRT_SetDisplayOrientationsPreference, NULL);

}

void SDL_WinRTApp::OnOrientationChanged(Object^ sender)

{

#if LOG_ORIENTATION_EVENTS==1

CoreWindow^ window = CoreWindow::GetForCurrentThread();

if (window) {

SDL_Log("%s, current orientation=%d, native orientation=%d, auto rot. pref=%d, CoreWindow Size={%f,%f}\n",

__FUNCTION__,

(int)DisplayProperties::CurrentOrientation,

(int)DisplayProperties::NativeOrientation,

(int)DisplayProperties::AutoRotationPreferences,

window->Bounds.Width,

window->Bounds.Height);

} else {

SDL_Log("%s, current orientation=%d, native orientation=%d, auto rot. pref=%d\n",

__FUNCTION__,

(int)DisplayProperties::CurrentOrientation,

(int)DisplayProperties::NativeOrientation,

(int)DisplayProperties::AutoRotationPreferences);

}

#endif

}

void SDL_WinRTApp::SetWindow(CoreWindow^ window)

{

#if LOG_WINDOW_EVENTS==1

SDL_Log("%s, current orientation=%d, native orientation=%d, auto rot. pref=%d, window Size={%f,%f}\n",

__FUNCTION__,

(int)DisplayProperties::CurrentOrientation,

(int)DisplayProperties::NativeOrientation,

(int)DisplayProperties::AutoRotationPreferences,

window->Bounds.Width,

window->Bounds.Height);

#endif

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);

#if WINAPI_FAMILY != WINAPI_FAMILY_PHONE_APP

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

#endif

window->PointerPressed +=

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

window->PointerReleased +=

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

window->PointerWheelChanged +=

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

window->PointerMoved +=

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

#if WINAPI_FAMILY != WINAPI_FAMILY_PHONE_APP

// Retrieves relative-only mouse movements:

Windows::Devices::Input::MouseDevice::GetForCurrentView()->MouseMoved +=

ref new TypedEventHandler<MouseDevice^, MouseEventArgs^>(this, &SDL_WinRTApp::OnMouseMoved);

#endif

window->KeyDown +=

ref new TypedEventHandler<CoreWindow^, KeyEventArgs^>(this, &SDL_WinRTApp::OnKeyDown);

window->KeyUp +=

ref new TypedEventHandler<CoreWindow^, KeyEventArgs^>(this, &SDL_WinRTApp::OnKeyUp);

}

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);

}

}

void SDL_WinRTApp::PumpEvents()

{

if (!m_windowClosed)

{

if (m_windowVisible)

{

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

}

else

{

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

}

}

}

void SDL_WinRTApp::Uninitialize()

{

}

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

{

#if LOG_WINDOW_EVENTS==1

SDL_Log("%s, size={%f,%f}, current orientation=%d, native orientation=%d, auto rot. pref=%d, m_sdlWindowData?=%s\n",

__FUNCTION__,

args->Size.Width, args->Size.Height,

(int)DisplayProperties::CurrentOrientation,

(int)DisplayProperties::NativeOrientation,

(int)DisplayProperties::AutoRotationPreferences,

(m_sdlWindowData ? "yes" : "no"));

#endif

if (m_sdlWindowData) {

// Make the new window size be the one true fullscreen mode.

// This change was done, in part, to allow the Direct3D 11.1 renderer

// to receive window-resize events as a device rotates.

// Before, rotating a device from landscape, to portrait, and then

// back to landscape would cause the Direct3D 11.1 swap buffer to

// not get resized appropriately. SDL would, on the rotation from

// landscape to portrait, re-resize the SDL window to it's initial

// size (landscape). On the subsequent rotation, SDL would drop the

// window-resize event as it appeared the SDL window didn't change

// size, and the Direct3D 11.1 renderer wouldn't resize its swap

// chain.

//

// TODO, WinRT: consider dropping old display modes after the fullscreen window changes size (from rotations, etc.)

m_sdlWindowData->sdlWindow->fullscreen_mode = SDL_WinRTGlobalApp->GetMainDisplayMode();

SDL_AddDisplayMode(&m_sdlVideoDevice->displays[0], &m_sdlWindowData->sdlWindow->fullscreen_mode);

// HACK, Feb 19, 2013: SDL_WINDOWEVENT_RESIZED events, when sent,

// will attempt to fix the values of the main window's renderer's

// viewport. While this can be good, it does appear to be buggy,

// and can cause a fullscreen viewport to become corrupted. This

// behavior was noticed on a Surface RT while rotating the device

// from landscape to portrait. Oddly enough, this did not occur

// in the Windows Simulator.

//

// Backing up, then restoring, the main renderer's 'resized' flag

// seems to fix fullscreen viewport problems when rotating a

// Windows device.

//

// Commencing hack in 3... 2... 1...

//

// UPDATE, SDL 2.0.0 update: the 'resized' flag is now gone. This

// hack might not be necessary any more.

//

//SDL_Renderer * rendererForMainWindow = SDL_GetRenderer(m_sdlWindowData->sdlWindow);

//const bool usingD3D11Renderer = \

// (rendererForMainWindow != NULL) &&

// (SDL_strcmp(rendererForMainWindow->info.name, "direct3d 11.1") == 0);

//SDL_bool wasD3D11RendererResized = SDL_FALSE;

//if (usingD3D11Renderer) {

// wasD3D11RendererResized = rendererForMainWindow->resized;

//}

// Send the window-resize event to the rest of SDL, and to apps:

const int windowWidth = (int) ceil(args->Size.Width);

const int windowHeight = (int) ceil(args->Size.Height);

SDL_SendWindowEvent(

m_sdlWindowData->sdlWindow,

SDL_WINDOWEVENT_RESIZED,

windowWidth,

windowHeight);

//// Viewport hack, part two:

//if (usingD3D11Renderer) {

// rendererForMainWindow->resized = wasD3D11RendererResized;

//}

}

}

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

{

#if LOG_WINDOW_EVENTS==1

SDL_Log("%s, visible?=%s, m_sdlWindowData?=%s\n",

__FUNCTION__,

(args->Visible ? "yes" : "no"),

(m_sdlWindowData ? "yes" : "no"));

#endif

m_windowVisible = args->Visible;

if (m_sdlWindowData) {

SDL_bool wasSDLWindowSurfaceValid = m_sdlWindowData->sdlWindow->surface_valid;

if (args->Visible) {

SDL_SendWindowEvent(m_sdlWindowData->sdlWindow, SDL_WINDOWEVENT_SHOWN, 0, 0);

} else {

SDL_SendWindowEvent(m_sdlWindowData->sdlWindow, SDL_WINDOWEVENT_HIDDEN, 0, 0);

}

// HACK: Prevent SDL's window-hide handling code, which currently

// triggers a fake window resize (possibly erronously), from

// marking the SDL window's surface as invalid.

//

// A better solution to this probably involves figuring out if the

// fake window resize can be prevented.

m_sdlWindowData->sdlWindow->surface_valid = wasSDLWindowSurfaceValid;

}

}

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

{

#if LOG_WINDOW_EVENTS==1

SDL_Log("%s\n", __FUNCTION__);

#endif

m_windowClosed = true;

}

static Uint8

WINRT_GetSDLButtonForPointerPoint(PointerPoint ^ pt)

{

switch (pt->Properties->PointerUpdateKind)

{

case PointerUpdateKind::LeftButtonPressed:

case PointerUpdateKind::LeftButtonReleased:

return SDL_BUTTON_LEFT;

case PointerUpdateKind::RightButtonPressed:

case PointerUpdateKind::RightButtonReleased:

return SDL_BUTTON_RIGHT;

case PointerUpdateKind::MiddleButtonPressed:

case PointerUpdateKind::MiddleButtonReleased:

return SDL_BUTTON_MIDDLE;

case PointerUpdateKind::XButton1Pressed:

case PointerUpdateKind::XButton1Released:

return SDL_BUTTON_X1;

case PointerUpdateKind::XButton2Pressed:

case PointerUpdateKind::XButton2Released:

return SDL_BUTTON_X2;

default:

break;

}

return 0;

}

static const char *

WINRT_ConvertPointerUpdateKindToString(PointerUpdateKind kind)

{

switch (kind)

{

case PointerUpdateKind::Other:

return "Other";

case PointerUpdateKind::LeftButtonPressed:

return "LeftButtonPressed";

case PointerUpdateKind::LeftButtonReleased:

return "LeftButtonReleased";

case PointerUpdateKind::RightButtonPressed:

return "RightButtonPressed";

case PointerUpdateKind::RightButtonReleased:

return "RightButtonReleased";

case PointerUpdateKind::MiddleButtonPressed:

return "MiddleButtonPressed";

case PointerUpdateKind::MiddleButtonReleased:

return "MiddleButtonReleased";

case PointerUpdateKind::XButton1Pressed:

return "XButton1Pressed";

case PointerUpdateKind::XButton1Released:

return "XButton1Released";

case PointerUpdateKind::XButton2Pressed:

return "XButton2Pressed";

case PointerUpdateKind::XButton2Released:

return "XButton2Released";

}

return "";

}

static void

WINRT_LogPointerEvent(const string & header, PointerEventArgs ^ args, Point transformedPoint)

{

PointerPoint ^ pt = args->CurrentPoint;

SDL_Log("%s: Position={%f,%f}, Transformed Pos={%f, %f}, MouseWheelDelta=%d, FrameId=%d, PointerId=%d, PointerUpdateKind=%s\n",

header.c_str(),

pt->Position.X, pt->Position.Y,

transformedPoint.X, transformedPoint.Y,

pt->Properties->MouseWheelDelta,

pt->FrameId,

pt->PointerId,

WINRT_ConvertPointerUpdateKindToString(args->CurrentPoint->Properties->PointerUpdateKind));

}

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

{

#if LOG_POINTER_EVENTS

WINRT_LogPointerEvent("mouse down", args, TransformCursor(args->CurrentPoint->Position));

#endif

if (m_sdlWindowData) {

Uint8 button = WINRT_GetSDLButtonForPointerPoint(args->CurrentPoint);

if (button) {

SDL_SendMouseButton(m_sdlWindowData->sdlWindow, 0, SDL_PRESSED, button);

}

}

}

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

{

#if LOG_POINTER_EVENTS

WINRT_LogPointerEvent("mouse up", args, TransformCursor(args->CurrentPoint->Position));

#endif

if (m_sdlWindowData) {

Uint8 button = WINRT_GetSDLButtonForPointerPoint(args->CurrentPoint);

if (button) {

SDL_SendMouseButton(m_sdlWindowData->sdlWindow, 0, SDL_RELEASED, button);

}

}

}

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

{

#if LOG_POINTER_EVENTS

WINRT_LogPointerEvent("wheel changed", args, TransformCursor(args->CurrentPoint->Position));

#endif

if (m_sdlWindowData) {

// FIXME: This may need to accumulate deltas up to WHEEL_DELTA

short motion = args->CurrentPoint->Properties->MouseWheelDelta / WHEEL_DELTA;

SDL_SendMouseWheel(m_sdlWindowData->sdlWindow, 0, 0, motion);

}

}

static inline int _lround(float arg) {

if (arg >= 0.0f) {

return (int)floor(arg + 0.5f);

} else {

return (int)ceil(arg - 0.5f);

}

}

void SDL_WinRTApp::OnMouseMoved(MouseDevice^ mouseDevice, MouseEventArgs^ args)

{

if (m_sdlWindowData && m_useRelativeMouseMode) {

// DLudwig, 2012-12-28: On some systems, namely Visual Studio's Windows

// Simulator, as well as Windows 8 in a Parallels 8 VM, MouseEventArgs'

// MouseDelta field often reports very large values. More information

// on this can be found at the following pages on MSDN:

// - http://social.msdn.microsoft.com/Forums/en-US/winappswithnativecode/thread/a3c789fa-f1c5-49c4-9c0a-7db88d0f90f8

// - https://connect.microsoft.com/VisualStudio/Feedback/details/756515

//

// The values do not appear to be as large when running on some systems,

// most notably a Surface RT. Furthermore, the values returned by

// CoreWindow's PointerMoved event, and sent to this class' OnPointerMoved

// method, do not ever appear to be large, even when MouseEventArgs'

// MouseDelta is reporting to the contrary.

//

// On systems with the large-values behavior, it appears that the values

// get reported as if the screen's size is 65536 units in both the X and Y

// dimensions. This can be viewed by using Windows' now-private, "Raw Input"

// APIs. (GetRawInputData, RegisterRawInputDevices, WM_INPUT, etc.)

//

// MSDN's documentation on MouseEventArgs' MouseDelta field (at

// http://msdn.microsoft.com/en-us/library/windows/apps/windows.devices.input.mouseeventargs.mousedelta ),

// does not seem to indicate (to me) that its values should be so large. It

// says that its values should be a "change in screen location". I could

// be misinterpreting this, however a post on MSDN from a Microsoft engineer (see:

// http://social.msdn.microsoft.com/Forums/en-US/winappswithnativecode/thread/09a9868e-95bb-4858-ba1a-cb4d2c298d62 ),

// indicates that these values are in DIPs, which is the same unit used

// by CoreWindow's PointerMoved events (via the Position field in its CurrentPoint

// property. See http://msdn.microsoft.com/en-us/library/windows/apps/windows.ui.input.pointerpoint.position.aspx

// for details.)

//

// To note, PointerMoved events are sent a 'RawPosition' value (via the

// CurrentPoint property in MouseEventArgs), however these do not seem

// to exhibit the same large-value behavior.

//

// The values passed via PointerMoved events can't always be used for relative

// mouse motion, unfortunately. Its values are bound to the cursor's position,

// which stops when it hits one of the screen's edges. This can be a problem in

// first person shooters, whereby it is normal for mouse motion to travel far

// along any one axis for a period of time. MouseMoved events do not have the

// screen-bounding limitation, and can be used regardless of where the system's

// cursor is.

//

// One possible workaround would be to programmatically set the cursor's

// position to the screen's center (when SDL's relative mouse mode is enabled),

// however Windows RT does not yet seem to have the ability to set the cursor's

// position via a public API. Win32 did this via an API call, SetCursorPos,

// however WinRT makes this function be private. Apps that use it won't get

// approved for distribution in the Windows Store. I've yet to be able to find

// a suitable, store-friendly counterpart for WinRT.

//

// There may be some room for a workaround whereby OnPointerMoved's values

// are compared to the values from OnMouseMoved in order to detect

// when this bug is active. A suitable transformation could then be made to

// OnMouseMoved's values. For now, however, the system-reported values are sent

// to SDL with minimal transformation: from native screen coordinates (in DIPs)

// to SDL window coordinates.

//

const Point mouseDeltaInDIPs((float)args->MouseDelta.X, (float)args->MouseDelta.Y);

const Point mouseDeltaInSDLWindowCoords = TransformCursor(mouseDeltaInDIPs);

SDL_SendMouseMotion(

m_sdlWindowData->sdlWindow,

0,

1,

_lround(mouseDeltaInSDLWindowCoords.X),

_lround(mouseDeltaInSDLWindowCoords.Y));

}

}

// Applies necessary geometric transformations to raw cursor positions:

Point SDL_WinRTApp::TransformCursor(Point rawPosition)

{

if ( ! m_sdlWindowData || ! m_sdlWindowData->sdlWindow ) {

return rawPosition;

}

CoreWindow ^ nativeWindow = CoreWindow::GetForCurrentThread();

Point outputPosition;

outputPosition.X = rawPosition.X * (((float32)m_sdlWindowData->sdlWindow->w) / nativeWindow->Bounds.Width);

outputPosition.Y = rawPosition.Y * (((float32)m_sdlWindowData->sdlWindow->h) / nativeWindow->Bounds.Height);

return outputPosition;

}

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

{

#if LOG_POINTER_EVENTS

WINRT_LogPointerEvent("pointer moved", args, TransformCursor(args->CurrentPoint->Position));

#endif

if (m_sdlWindowData && ! m_useRelativeMouseMode)

{

Point transformedPoint = TransformCursor(args->CurrentPoint->Position);

SDL_SendMouseMotion(m_sdlWindowData->sdlWindow, 0, 0, (int)transformedPoint.X, (int)transformedPoint.Y);

}

}

static SDL_Scancode WinRT_Official_Keycodes[] = {

SDL_SCANCODE_UNKNOWN, // VirtualKey.None -- 0

SDL_SCANCODE_UNKNOWN, // VirtualKey.LeftButton -- 1

SDL_SCANCODE_UNKNOWN, // VirtualKey.RightButton -- 2

SDL_SCANCODE_CANCEL, // VirtualKey.Cancel -- 3

SDL_SCANCODE_UNKNOWN, // VirtualKey.MiddleButton -- 4

SDL_SCANCODE_UNKNOWN, // VirtualKey.XButton1 -- 5

SDL_SCANCODE_UNKNOWN, // VirtualKey.XButton2 -- 6

SDL_SCANCODE_UNKNOWN, // -- 7

SDL_SCANCODE_BACKSPACE, // VirtualKey.Back -- 8

SDL_SCANCODE_TAB, // VirtualKey.Tab -- 9

SDL_SCANCODE_UNKNOWN, // -- 10

SDL_SCANCODE_UNKNOWN, // -- 11

SDL_SCANCODE_CLEAR, // VirtualKey.Clear -- 12

SDL_SCANCODE_RETURN, // VirtualKey.Enter -- 13

SDL_SCANCODE_UNKNOWN, // -- 14

SDL_SCANCODE_UNKNOWN, // -- 15

SDL_SCANCODE_LSHIFT, // VirtualKey.Shift -- 16

SDL_SCANCODE_LCTRL, // VirtualKey.Control -- 17

SDL_SCANCODE_MENU, // VirtualKey.Menu -- 18

SDL_SCANCODE_PAUSE, // VirtualKey.Pause -- 19

SDL_SCANCODE_CAPSLOCK, // VirtualKey.CapitalLock -- 20

SDL_SCANCODE_UNKNOWN, // VirtualKey.Kana or VirtualKey.Hangul -- 21

SDL_SCANCODE_UNKNOWN, // -- 22

SDL_SCANCODE_UNKNOWN, // VirtualKey.Junja -- 23

SDL_SCANCODE_UNKNOWN, // VirtualKey.Final -- 24

SDL_SCANCODE_UNKNOWN, // VirtualKey.Hanja or VirtualKey.Kanji -- 25

SDL_SCANCODE_UNKNOWN, // -- 26

SDL_SCANCODE_ESCAPE, // VirtualKey.Escape -- 27

SDL_SCANCODE_UNKNOWN, // VirtualKey.Convert -- 28

SDL_SCANCODE_UNKNOWN, // VirtualKey.NonConvert -- 29

SDL_SCANCODE_UNKNOWN, // VirtualKey.Accept -- 30

SDL_SCANCODE_UNKNOWN, // VirtualKey.ModeChange -- 31 (maybe SDL_SCANCODE_MODE ?)

SDL_SCANCODE_SPACE, // VirtualKey.Space -- 32

SDL_SCANCODE_PAGEUP, // VirtualKey.PageUp -- 33

SDL_SCANCODE_PAGEDOWN, // VirtualKey.PageDown -- 34

SDL_SCANCODE_END, // VirtualKey.End -- 35

SDL_SCANCODE_HOME, // VirtualKey.Home -- 36

SDL_SCANCODE_LEFT, // VirtualKey.Left -- 37

SDL_SCANCODE_UP, // VirtualKey.Up -- 38

SDL_SCANCODE_RIGHT, // VirtualKey.Right -- 39

SDL_SCANCODE_DOWN, // VirtualKey.Down -- 40

SDL_SCANCODE_SELECT, // VirtualKey.Select -- 41

SDL_SCANCODE_UNKNOWN, // VirtualKey.Print -- 42 (maybe SDL_SCANCODE_PRINTSCREEN ?)

SDL_SCANCODE_EXECUTE, // VirtualKey.Execute -- 43

SDL_SCANCODE_UNKNOWN, // VirtualKey.Snapshot -- 44

SDL_SCANCODE_INSERT, // VirtualKey.Insert -- 45

SDL_SCANCODE_DELETE, // VirtualKey.Delete -- 46

SDL_SCANCODE_HELP, // VirtualKey.Help -- 47

SDL_SCANCODE_0, // VirtualKey.Number0 -- 48

SDL_SCANCODE_1, // VirtualKey.Number1 -- 49

SDL_SCANCODE_2, // VirtualKey.Number2 -- 50

SDL_SCANCODE_3, // VirtualKey.Number3 -- 51

SDL_SCANCODE_4, // VirtualKey.Number4 -- 52

SDL_SCANCODE_5, // VirtualKey.Number5 -- 53

SDL_SCANCODE_6, // VirtualKey.Number6 -- 54

SDL_SCANCODE_7, // VirtualKey.Number7 -- 55

SDL_SCANCODE_8, // VirtualKey.Number8 -- 56

SDL_SCANCODE_9, // VirtualKey.Number9 -- 57

SDL_SCANCODE_UNKNOWN, // -- 58

SDL_SCANCODE_UNKNOWN, // -- 59

SDL_SCANCODE_UNKNOWN, // -- 60

SDL_SCANCODE_UNKNOWN, // -- 61

SDL_SCANCODE_UNKNOWN, // -- 62

SDL_SCANCODE_UNKNOWN, // -- 63

SDL_SCANCODE_UNKNOWN, // -- 64

SDL_SCANCODE_A, // VirtualKey.A -- 65

SDL_SCANCODE_B, // VirtualKey.B -- 66

SDL_SCANCODE_C, // VirtualKey.C -- 67

SDL_SCANCODE_D, // VirtualKey.D -- 68

SDL_SCANCODE_E, // VirtualKey.E -- 69

SDL_SCANCODE_F, // VirtualKey.F -- 70

SDL_SCANCODE_G, // VirtualKey.G -- 71

SDL_SCANCODE_H, // VirtualKey.H -- 72

SDL_SCANCODE_I, // VirtualKey.I -- 73

SDL_SCANCODE_J, // VirtualKey.J -- 74

SDL_SCANCODE_K, // VirtualKey.K -- 75

SDL_SCANCODE_L, // VirtualKey.L -- 76

SDL_SCANCODE_M, // VirtualKey.M -- 77

SDL_SCANCODE_N, // VirtualKey.N -- 78

SDL_SCANCODE_O, // VirtualKey.O -- 79

SDL_SCANCODE_P, // VirtualKey.P -- 80

SDL_SCANCODE_Q, // VirtualKey.Q -- 81

SDL_SCANCODE_R, // VirtualKey.R -- 82

SDL_SCANCODE_S, // VirtualKey.S -- 83

SDL_SCANCODE_T, // VirtualKey.T -- 84

SDL_SCANCODE_U, // VirtualKey.U -- 85

SDL_SCANCODE_V, // VirtualKey.V -- 86

SDL_SCANCODE_W, // VirtualKey.W -- 87

SDL_SCANCODE_X, // VirtualKey.X -- 88

SDL_SCANCODE_Y, // VirtualKey.Y -- 89

SDL_SCANCODE_Z, // VirtualKey.Z -- 90

SDL_SCANCODE_UNKNOWN, // VirtualKey.LeftWindows -- 91 (maybe SDL_SCANCODE_APPLICATION or SDL_SCANCODE_LGUI ?)

SDL_SCANCODE_UNKNOWN, // VirtualKey.RightWindows -- 92 (maybe SDL_SCANCODE_APPLICATION or SDL_SCANCODE_RGUI ?)

SDL_SCANCODE_APPLICATION, // VirtualKey.Application -- 93

SDL_SCANCODE_UNKNOWN, // -- 94

SDL_SCANCODE_SLEEP, // VirtualKey.Sleep -- 95

SDL_SCANCODE_KP_0, // VirtualKey.NumberPad0 -- 96

SDL_SCANCODE_KP_1, // VirtualKey.NumberPad1 -- 97

SDL_SCANCODE_KP_2, // VirtualKey.NumberPad2 -- 98

SDL_SCANCODE_KP_3, // VirtualKey.NumberPad3 -- 99

SDL_SCANCODE_KP_4, // VirtualKey.NumberPad4 -- 100

SDL_SCANCODE_KP_5, // VirtualKey.NumberPad5 -- 101

SDL_SCANCODE_KP_6, // VirtualKey.NumberPad6 -- 102

SDL_SCANCODE_KP_7, // VirtualKey.NumberPad7 -- 103

SDL_SCANCODE_KP_8, // VirtualKey.NumberPad8 -- 104

SDL_SCANCODE_KP_9, // VirtualKey.NumberPad9 -- 105

SDL_SCANCODE_KP_MULTIPLY, // VirtualKey.Multiply -- 106

SDL_SCANCODE_KP_PLUS, // VirtualKey.Add -- 107

SDL_SCANCODE_UNKNOWN, // VirtualKey.Separator -- 108

SDL_SCANCODE_KP_MINUS, // VirtualKey.Subtract -- 109

SDL_SCANCODE_UNKNOWN, // VirtualKey.Decimal -- 110 (maybe SDL_SCANCODE_DECIMALSEPARATOR, SDL_SCANCODE_KP_DECIMAL, or SDL_SCANCODE_KP_PERIOD ?)

SDL_SCANCODE_KP_DIVIDE, // VirtualKey.Divide -- 111

SDL_SCANCODE_F1, // VirtualKey.F1 -- 112

SDL_SCANCODE_F2, // VirtualKey.F2 -- 113

SDL_SCANCODE_F3, // VirtualKey.F3 -- 114

SDL_SCANCODE_F4, // VirtualKey.F4 -- 115

SDL_SCANCODE_F5, // VirtualKey.F5 -- 116

SDL_SCANCODE_F6, // VirtualKey.F6 -- 117

SDL_SCANCODE_F7, // VirtualKey.F7 -- 118

SDL_SCANCODE_F8, // VirtualKey.F8 -- 119

SDL_SCANCODE_F9, // VirtualKey.F9 -- 120

SDL_SCANCODE_F10, // VirtualKey.F10 -- 121

SDL_SCANCODE_F11, // VirtualKey.F11 -- 122

SDL_SCANCODE_F12, // VirtualKey.F12 -- 123

SDL_SCANCODE_F13, // VirtualKey.F13 -- 124

SDL_SCANCODE_F14, // VirtualKey.F14 -- 125

SDL_SCANCODE_F15, // VirtualKey.F15 -- 126

SDL_SCANCODE_F16, // VirtualKey.F16 -- 127

SDL_SCANCODE_F17, // VirtualKey.F17 -- 128

SDL_SCANCODE_F18, // VirtualKey.F18 -- 129

SDL_SCANCODE_F19, // VirtualKey.F19 -- 130

SDL_SCANCODE_F20, // VirtualKey.F20 -- 131

SDL_SCANCODE_F21, // VirtualKey.F21 -- 132

SDL_SCANCODE_F22, // VirtualKey.F22 -- 133

SDL_SCANCODE_F23, // VirtualKey.F23 -- 134

SDL_SCANCODE_F24, // VirtualKey.F24 -- 135

SDL_SCANCODE_UNKNOWN, // -- 136

SDL_SCANCODE_UNKNOWN, // -- 137

SDL_SCANCODE_UNKNOWN, // -- 138

SDL_SCANCODE_UNKNOWN, // -- 139

SDL_SCANCODE_UNKNOWN, // -- 140

SDL_SCANCODE_UNKNOWN, // -- 141

SDL_SCANCODE_UNKNOWN, // -- 142

SDL_SCANCODE_UNKNOWN, // -- 143

SDL_SCANCODE_NUMLOCKCLEAR, // VirtualKey.NumberKeyLock -- 144

SDL_SCANCODE_SCROLLLOCK, // VirtualKey.Scroll -- 145

SDL_SCANCODE_UNKNOWN, // -- 146

SDL_SCANCODE_UNKNOWN, // -- 147

SDL_SCANCODE_UNKNOWN, // -- 148

SDL_SCANCODE_UNKNOWN, // -- 149

SDL_SCANCODE_UNKNOWN, // -- 150

SDL_SCANCODE_UNKNOWN, // -- 151

SDL_SCANCODE_UNKNOWN, // -- 152

SDL_SCANCODE_UNKNOWN, // -- 153

SDL_SCANCODE_UNKNOWN, // -- 154

SDL_SCANCODE_UNKNOWN, // -- 155

SDL_SCANCODE_UNKNOWN, // -- 156

SDL_SCANCODE_UNKNOWN, // -- 157

SDL_SCANCODE_UNKNOWN, // -- 158

SDL_SCANCODE_UNKNOWN, // -- 159

SDL_SCANCODE_LSHIFT, // VirtualKey.LeftShift -- 160

SDL_SCANCODE_RSHIFT, // VirtualKey.RightShift -- 161

SDL_SCANCODE_LCTRL, // VirtualKey.LeftControl -- 162

SDL_SCANCODE_RCTRL, // VirtualKey.RightControl -- 163

SDL_SCANCODE_MENU, // VirtualKey.LeftMenu -- 164

SDL_SCANCODE_MENU, // VirtualKey.RightMenu -- 165

};

static std::unordered_map<int, SDL_Scancode> WinRT_Unofficial_Keycodes;

static SDL_Scancode

TranslateKeycode(int keycode)

{

if (WinRT_Unofficial_Keycodes.empty()) {

/* Set up a table of undocumented (by Microsoft), WinRT-specific,

key codes: */

// TODO, WinRT: move content declarations of WinRT_Unofficial_Keycodes into a C++11 initializer list, when possible

WinRT_Unofficial_Keycodes[220] = SDL_SCANCODE_GRAVE;

WinRT_Unofficial_Keycodes[222] = SDL_SCANCODE_BACKSLASH;

}

/* Try to get a documented, WinRT, 'VirtualKey' first (as documented at

http://msdn.microsoft.com/en-us/library/windows/apps/windows.system.virtualkey.aspx ).

If that fails, fall back to a Win32 virtual key.

*/

// TODO, WinRT: try filling out the WinRT keycode table as much as possible, using the Win32 table for interpretation hints

//SDL_Log("WinRT TranslateKeycode, keycode=%d\n", (int)keycode);

SDL_Scancode scancode = SDL_SCANCODE_UNKNOWN;

if (keycode < SDL_arraysize(WinRT_Official_Keycodes)) {

scancode = WinRT_Official_Keycodes[keycode];

}

if (scancode == SDL_SCANCODE_UNKNOWN) {

if (WinRT_Unofficial_Keycodes.find(keycode) != WinRT_Unofficial_Keycodes.end()) {

scancode = WinRT_Unofficial_Keycodes[keycode];

}

}

if (scancode == SDL_SCANCODE_UNKNOWN) {

if (keycode < SDL_arraysize(windows_scancode_table)) {

scancode = windows_scancode_table[keycode];

}

}

if (scancode == SDL_SCANCODE_UNKNOWN) {

SDL_Log("WinRT TranslateKeycode, unknown keycode=%d\n", (int)keycode);

}

return scancode;

}

void SDL_WinRTApp::OnKeyDown(Windows::UI::Core::CoreWindow^ sender, Windows::UI::Core::KeyEventArgs^ args)

{

SDL_Scancode sdlScancode = TranslateKeycode((int)args->VirtualKey);

#if 0

SDL_Keycode keycode = SDL_GetKeyFromScancode(sdlScancode);

SDL_Log("key down, handled=%s, ext?=%s, released?=%s, menu key down?=%s, repeat count=%d, native scan code=%d, was down?=%s, vkey=%d, sdl scan code=%d (%s), sdl key code=%d (%s)\n",

(args->Handled ? "1" : "0"),

(args->KeyStatus.IsExtendedKey ? "1" : "0"),

(args->KeyStatus.IsKeyReleased ? "1" : "0"),

(args->KeyStatus.IsMenuKeyDown ? "1" : "0"),

args->KeyStatus.RepeatCount,

args->KeyStatus.ScanCode,

(args->KeyStatus.WasKeyDown ? "1" : "0"),

args->VirtualKey,

sdlScancode,

SDL_GetScancodeName(sdlScancode),

keycode,

SDL_GetKeyName(keycode));

//args->Handled = true;

//VirtualKey vkey = args->VirtualKey;

#endif

SDL_SendKeyboardKey(SDL_PRESSED, sdlScancode);

}

void SDL_WinRTApp::OnKeyUp(Windows::UI::Core::CoreWindow^ sender, Windows::UI::Core::KeyEventArgs^ args)

{

SDL_Scancode sdlScancode = TranslateKeycode((int)args->VirtualKey);

#if 0

SDL_Keycode keycode = SDL_GetKeyFromScancode(sdlScancode);

SDL_Log("key up, handled=%s, ext?=%s, released?=%s, menu key down?=%s, repeat count=%d, native scan code=%d, was down?=%s, vkey=%d, sdl scan code=%d (%s), sdl key code=%d (%s)\n",

(args->Handled ? "1" : "0"),

(args->KeyStatus.IsExtendedKey ? "1" : "0"),

(args->KeyStatus.IsKeyReleased ? "1" : "0"),

(args->KeyStatus.IsMenuKeyDown ? "1" : "0"),

args->KeyStatus.RepeatCount,

args->KeyStatus.ScanCode,

(args->KeyStatus.WasKeyDown ? "1" : "0"),

args->VirtualKey,

sdlScancode,

SDL_GetScancodeName(sdlScancode),

keycode,

SDL_GetKeyName(keycode));

//args->Handled = true;

#endif

SDL_SendKeyboardKey(SDL_RELEASED, sdlScancode);

}

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

{

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

}

static int SDLCALL RemoveAppSuspendAndResumeEvents(void * userdata, SDL_Event * event)

{

if (event->type == SDL_WINDOWEVENT)

{

switch (event->window.event)

{

case SDL_WINDOWEVENT_MINIMIZED:

case SDL_WINDOWEVENT_RESTORED:

// Return 0 to indicate that the event should be removed from the

// event queue:

return 0;

default:

break;

}

}

// Return 1 to indicate that the event should stay in the event queue:

return 1;

}

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]()

{

// Send a window-minimized event immediately to observers.

// CoreDispatcher::ProcessEvents, which is the backbone on which

// SDL_WinRTApp::PumpEvents is built, will not return to its caller

// once it sends out a suspend event. Any events posted to SDL's

// event queue won't get received until the WinRT app is resumed.

// SDL_AddEventWatch() may be used to receive app-suspend events on

// WinRT.

//

// In order to prevent app-suspend events from being received twice:

// first via a callback passed to SDL_AddEventWatch, and second via

// SDL's event queue, the event will be sent to SDL, then immediately

// removed from the queue.

if (m_sdlWindowData)

{

SDL_SendWindowEvent(m_sdlWindowData->sdlWindow, SDL_WINDOWEVENT_MINIMIZED, 0, 0); // TODO: see if SDL_WINDOWEVENT_SIZE_CHANGED should be getting triggered here (it is, currently)

SDL_FilterEvents(RemoveAppSuspendAndResumeEvents, 0);

}

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.

if (m_sdlWindowData)

{

SDL_SendWindowEvent(m_sdlWindowData->sdlWindow, SDL_WINDOWEVENT_RESTORED, 0, 0); // TODO: see if SDL_WINDOWEVENT_SIZE_CHANGED should be getting triggered here (it is, currently)

// Remove the app-resume event from the queue, as is done with the

// app-suspend event.

//

// TODO, WinRT: consider posting this event to the queue even though

// its counterpart, the app-suspend event, effectively has to be

// processed immediately.

SDL_FilterEvents(RemoveAppSuspendAndResumeEvents, 0);

}

}

SDL_DisplayMode SDL_WinRTApp::GetMainDisplayMode()

{

// Create an empty, zeroed-out display mode:

SDL_DisplayMode mode;

SDL_zero(mode);

// Fill in most fields:

mode.format = SDL_PIXELFORMAT_RGB888;

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

mode.driverdata = NULL;

// Calculate the display size given the window size, taking into account

// the current display's DPI:

const float currentDPI = Windows::Graphics::Display::DisplayProperties::LogicalDpi;

const float dipsPerInch = 96.0f;

mode.w = (int) ((CoreWindow::GetForCurrentThread()->Bounds.Width * currentDPI) / dipsPerInch);

mode.h = (int) ((CoreWindow::GetForCurrentThread()->Bounds.Height * currentDPI) / dipsPerInch);

return mode;

}

const SDL_WindowData * SDL_WinRTApp::GetSDLWindowData() const

{

return m_sdlWindowData;

}

bool SDL_WinRTApp::HasSDLWindowData() const

{

return (m_sdlWindowData != NULL);

}

void SDL_WinRTApp::SetRelativeMouseMode(bool enable)

{

m_useRelativeMouseMode = enable;

}

void SDL_WinRTApp::SetSDLWindowData(const SDL_WindowData * windowData)

{

m_sdlWindowData = windowData;

}

void SDL_WinRTApp::SetSDLVideoDevice(const SDL_VideoDevice * videoDevice)

{

m_sdlVideoDevice = videoDevice;

}