axmol/cocos/platform/winrt/CCGLViewImpl.cpp

/****************************************************************************
Copyright (c) 2010 cocos2d-x.org
Copyright (c) Microsoft Open Technologies, Inc.

http://www.cocos2d-x.org

Permission is hereby granted, free of charge, to any person obtaining a copy
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****************************************************************************/

#include "platform/CCPlatformConfig.h"
#if (CC_TARGET_PLATFORM == CC_PLATFORM_WINRT)

#include "platform/winrt/CCGLViewImpl.h"
#include "base/ccMacros.h"
#include "base/CCDirector.h"
#include "base/CCTouch.h"
#include "base/CCIMEDispatcher.h"
#include "platform/winrt/CCApplication.h"
#include "platform/winrt/CCWinRTUtils.h"

#if (_MSC_VER >= 1800)
#include <d3d11_2.h>
#endif


using namespace Platform;
using namespace Windows::Foundation;
using namespace Windows::Foundation::Collections;
using namespace Windows::Graphics::Display;
using namespace Windows::UI::Input;
using namespace Windows::UI::Core;
using namespace Windows::UI::Xaml;
using namespace Windows::UI::Xaml::Controls;
using namespace Windows::UI::Xaml::Input;
using namespace Windows::UI::Xaml::Media;
using namespace Windows::System;
using namespace Windows::UI::ViewManagement;

NS_CC_BEGIN

static GLViewImpl* s_pEglView = nullptr;

//////////////////////////////////////////////////////////////////////////
// implement GLView
//////////////////////////////////////////////////////////////////////////

// Initialize the DirectX resources required to run.
void WinRTWindow::Initialize(CoreWindow^ window, SwapChainBackgroundPanel^ panel)
{
	m_window = window;
 	//TODO: remove esUtils
    //esInitContext ( &m_esContext );

    ANGLE_D3D_FEATURE_LEVEL featureLevel = ANGLE_D3D_FEATURE_LEVEL::ANGLE_D3D_FEATURE_LEVEL_9_1;

#if (_MSC_VER >= 1800)
    // WinRT on Windows 8.1 can compile shaders at run time so we don't care about the DirectX feature level
    featureLevel = ANGLE_D3D_FEATURE_LEVEL::ANGLE_D3D_FEATURE_LEVEL_ANY;
#endif


    HRESULT result = CreateWinrtEglWindow(WINRT_EGL_IUNKNOWN(panel), featureLevel, m_eglWindow.GetAddressOf());
	
	if (!SUCCEEDED(result))
	{
		CCLOG("Unable to create Angle EGL Window: %d", result);
		return;
	}

	m_esContext.hWnd = m_eglWindow;
    // width and height are ignored and determined from the CoreWindow the SwapChainBackgroundPanel is in.

    //TODO: remove esUtils
    //esCreateWindow ( &m_esContext, TEXT("Cocos2d-x"), 0, 0, ES_WINDOW_RGB | ES_WINDOW_ALPHA | ES_WINDOW_DEPTH | ES_WINDOW_STENCIL );

	m_window->PointerPressed +=
        ref new TypedEventHandler<CoreWindow^, PointerEventArgs^>(this, &WinRTWindow::OnPointerPressed);
    m_window->PointerReleased +=
        ref new TypedEventHandler<CoreWindow^, PointerEventArgs^>(this, &WinRTWindow::OnPointerReleased);
    m_window->PointerMoved +=
        ref new TypedEventHandler<CoreWindow^, PointerEventArgs^>(this, &WinRTWindow::OnPointerMoved);
    m_window->PointerWheelChanged +=
        ref new TypedEventHandler<CoreWindow^, PointerEventArgs^>(this, &WinRTWindow::OnPointerWheelChanged);

	m_dummy = ref new Button();
	m_dummy->Opacity = 0.0;
	m_dummy->Width=1;
	m_dummy->Height=1;
	m_dummy->IsEnabled = true;
	panel->Children->Append(m_dummy);

	m_textBox = ref new TextBox();
	m_textBox->Opacity = 0.0;
	m_textBox->Width=1;
	m_textBox->Height=1;
	m_textBox->MaxLength = 1;

	panel->Children->Append(m_textBox);
	m_textBox->AddHandler(UIElement::KeyDownEvent, ref new KeyEventHandler(this, &WinRTWindow::OnTextKeyDown), true);
	m_textBox->AddHandler(UIElement::KeyUpEvent, ref new KeyEventHandler(this, &WinRTWindow::OnTextKeyUp), true);
	m_textBox->IsEnabled = false;

	auto keyboard = InputPane::GetForCurrentView();
	keyboard->Showing += ref new TypedEventHandler<InputPane^, InputPaneVisibilityEventArgs^>(this, &WinRTWindow::ShowKeyboard);
	keyboard->Hiding += ref new TypedEventHandler<InputPane^, InputPaneVisibilityEventArgs^>(this, &WinRTWindow::HideKeyboard);
	setIMEKeyboardState(false);
}

WinRTWindow::WinRTWindow(CoreWindow^ window) :
	m_lastPointValid(false),
	m_textInputEnabled(false)
{
	window->SizeChanged += 
	ref new TypedEventHandler<CoreWindow^, WindowSizeChangedEventArgs^>(this, &WinRTWindow::OnWindowSizeChanged);

	DisplayProperties::LogicalDpiChanged +=
		ref new DisplayPropertiesEventHandler(this, &WinRTWindow::OnLogicalDpiChanged);

	DisplayProperties::OrientationChanged +=
        ref new DisplayPropertiesEventHandler(this, &WinRTWindow::OnOrientationChanged);

	DisplayProperties::DisplayContentsInvalidated +=
		ref new DisplayPropertiesEventHandler(this, &WinRTWindow::OnDisplayContentsInvalidated);
	
	m_eventToken = CompositionTarget::Rendering::add(ref new EventHandler<Object^>(this, &WinRTWindow::OnRendering));
}


void WinRTWindow::swapBuffers()
{
	eglSwapBuffers(m_esContext.eglDisplay, m_esContext.eglSurface);  
}



void WinRTWindow::OnSuspending()
{
#if (_MSC_VER >= 1800)
    Microsoft::WRL::ComPtr<IDXGIDevice3> dxgiDevice;
    Microsoft::WRL::ComPtr<ID3D11Device> device = m_eglWindow->GetAngleD3DDevice();
    HRESULT result = device.As(&dxgiDevice);
    if (SUCCEEDED(result))
    {
        dxgiDevice->Trim();
    }
#endif
}


void WinRTWindow::ResizeWindow()
{
     GLViewImpl::sharedOpenGLView()->UpdateForWindowSizeChange();
}

cocos2d::Vec2 WinRTWindow::GetCCPoint(PointerEventArgs^ args) {
	auto p = args->CurrentPoint;
	float x = getScaledDPIValue(p->Position.X);
	float y = getScaledDPIValue(p->Position.Y);
    Vec2 pt(x, y);

	float zoomFactor = GLViewImpl::sharedOpenGLView()->getFrameZoomFactor();

	if(zoomFactor > 0.0f) {
		pt.x /= zoomFactor;
		pt.y /= zoomFactor;
	}
	return pt;
}

void WinRTWindow::ShowKeyboard(InputPane^ inputPane, InputPaneVisibilityEventArgs^ args)
{
    GLViewImpl::sharedOpenGLView()->ShowKeyboard(args->OccludedRect);
}

void WinRTWindow::HideKeyboard(InputPane^ inputPane, InputPaneVisibilityEventArgs^ args)
{
    GLViewImpl::sharedOpenGLView()->HideKeyboard(args->OccludedRect);
}

void WinRTWindow::setIMEKeyboardState(bool bOpen)
{
	m_textInputEnabled = bOpen;
	if(m_textInputEnabled)
	{
		m_textBox->IsEnabled = true;
		m_textBox->Focus(FocusState::Pointer);
	}
	else
	{
		m_dummy->Focus(FocusState::Pointer);
		m_textBox->IsEnabled = false;
	}
}



void WinRTWindow::OnTextKeyDown(Object^ sender, KeyRoutedEventArgs^ args)
{
#if 0
	if(!m_textInputEnabled)
	{
		return;
	}

    auto key = args->Key;

    switch(key)
    {
    default:
        break;
    }
#endif
}

void WinRTWindow::OnTextKeyUp(Object^ sender, KeyRoutedEventArgs^ args)
{
	if(!m_textInputEnabled)
	{
		return;
	}

	args->Handled = true;

    auto key = args->Key;

    switch(key)
    {
    case VirtualKey::Escape:
        // TODO:: fix me
        //Director::getInstance()->getKeypadDispatcher()->dispatchKeypadMSG(kTypeBackClicked);
		args->Handled = true;
        break;
	case VirtualKey::Back:
        IMEDispatcher::sharedDispatcher()->dispatchDeleteBackward();
        break;
    case VirtualKey::Enter:
		setIMEKeyboardState(false);
        IMEDispatcher::sharedDispatcher()->dispatchInsertText("\n", 1);
        break;
    default:
        char szUtf8[8] = {0};
        int nLen = WideCharToMultiByte(CP_UTF8, 0, (LPCWSTR)m_textBox->Text->Data(), 1, szUtf8, sizeof(szUtf8), NULL, NULL);
        IMEDispatcher::sharedDispatcher()->dispatchInsertText(szUtf8, nLen);
        break;
    }	
	m_textBox->Text = "";
}


void WinRTWindow::OnPointerWheelChanged(CoreWindow^ sender, PointerEventArgs^ args)
{
    float direction = (float)args->CurrentPoint->Properties->MouseWheelDelta;
    int id = 0;
    Vec2 p(0.0f,0.0f);
    GLViewImpl::sharedOpenGLView()->handleTouchesBegin(1, &id, &p.x, &p.y);
    p.y += direction;
    GLViewImpl::sharedOpenGLView()->handleTouchesMove(1, &id, &p.x, &p.y);
    GLViewImpl::sharedOpenGLView()->handleTouchesEnd(1, &id, &p.x, &p.y);
}

// user pressed the Back Key on the phone
void GLViewImpl::OnBackKeyPress()
{
#if 0
    if (m_delegate)
    {
        m_delegate->Invoke(Cocos2dEvent::TerminateApp);
    }
#endif // 0

}


void GLViewImpl::OnPointerPressed(PointerEventArgs^ args)
{
#if 0
    int id = args->CurrentPoint->PointerId;
    Vec2 pt = GetPoint(args);
    handleTouchesBegin(1, &id, &pt.x, &pt.y);
#endif
}

void GLViewImpl::OnPointerMoved(PointerEventArgs^ args)
{
#if 0
    auto currentPoint = args->CurrentPoint;
    if (currentPoint->IsInContact)
    {
        if (m_lastPointValid)
        {
            int id = args->CurrentPoint->PointerId;
            Vec2 p = GetPoint(args);
            handleTouchesMove(1, &id, &p.x, &p.y);
        }
        m_lastPoint = currentPoint->Position;
        m_lastPointValid = true;
    }
    else
    {
        m_lastPointValid = false;
    }
#endif
}

void GLViewImpl::OnPointerReleased(PointerEventArgs^ args)
{
#if 0
    int id = args->CurrentPoint->PointerId;
    Vec2 pt = GetPoint(args);
    handleTouchesEnd(1, &id, &pt.x, &pt.y);
#endif // 0

}



void WinRTWindow::OnPointerPressed(CoreWindow^ sender, PointerEventArgs^ args)
{
    int id = args->CurrentPoint->PointerId;
    Vec2 pt = GetCCPoint(args);
    GLViewImpl::sharedOpenGLView()->handleTouchesBegin(1, &id, &pt.x, &pt.y);
}

void WinRTWindow::OnPointerMoved(CoreWindow^ sender, PointerEventArgs^ args)
{
	auto currentPoint = args->CurrentPoint;
	if (currentPoint->IsInContact)
	{
		if (m_lastPointValid)
		{
			int id = args->CurrentPoint->PointerId;
			Vec2 p = GetCCPoint(args);
			GLViewImpl::sharedOpenGLView()->handleTouchesMove(1, &id, &p.x, &p.y);
		}
		m_lastPoint = currentPoint->Position;
		m_lastPointValid = true;
	}
	else
	{
		m_lastPointValid = false;
	}
}

void WinRTWindow::OnPointerReleased(CoreWindow^ sender, PointerEventArgs^ args)
{
    int id = args->CurrentPoint->PointerId;
    Vec2 pt = GetCCPoint(args);
    GLViewImpl::sharedOpenGLView()->handleTouchesEnd(1, &id, &pt.x, &pt.y);
}

void WinRTWindow::OnWindowSizeChanged(CoreWindow^ sender, WindowSizeChangedEventArgs^ args)
{
	ResizeWindow();
	GLViewImpl::sharedOpenGLView()->UpdateForWindowSizeChange();
}

void WinRTWindow::OnLogicalDpiChanged(Object^ sender)
{
	GLViewImpl::sharedOpenGLView()->UpdateForWindowSizeChange();
}

void WinRTWindow::OnOrientationChanged(Object^ sender)
{
	ResizeWindow();
	GLViewImpl::sharedOpenGLView()->UpdateForWindowSizeChange();
}

void WinRTWindow::OnDisplayContentsInvalidated(Object^ sender)
{
	GLViewImpl::sharedOpenGLView()->UpdateForWindowSizeChange();
}

void WinRTWindow::OnRendering(Object^ sender, Object^ args)
{
	GLViewImpl::sharedOpenGLView()->OnRendering();
}


GLViewImpl::GLViewImpl()
	: m_window(nullptr)
	, m_fFrameZoomFactor(1.0f)
	, m_bSupportTouch(false)
	, m_lastPointValid(false)
	, m_running(false)
	, m_winRTWindow(nullptr)
	, m_initialized(false)
{
	s_pEglView = this;
    _viewName = "Cocos2dxWinRT";
}

GLViewImpl::~GLViewImpl()
{
	CC_ASSERT(this == s_pEglView);
    s_pEglView = nullptr;

	// TODO: cleanup 
}

bool GLViewImpl::Create(CoreWindow^ window, SwapChainBackgroundPanel^ panel)
{
    bool bRet = false;
	m_window = window;

	m_bSupportTouch = true;
	m_winRTWindow = ref new WinRTWindow(window);
	m_winRTWindow->Initialize(window, panel);
    m_initialized = false;
	UpdateForWindowSizeChange();
    return bRet;
}

bool GLViewImpl::isOpenGLReady()
{
	// TODO: need to revisit this
    return (m_window.Get() != nullptr);
}

void GLViewImpl::end()
{
	// TODO: need to implement

}

void GLViewImpl::swapBuffers()
{
	m_winRTWindow->swapBuffers();
}


void GLViewImpl::setIMEKeyboardState(bool bOpen)
{
	if(m_winRTWindow) 
	{
		m_winRTWindow->setIMEKeyboardState(bOpen);
	}
}


void GLViewImpl::resize(int width, int height)
{

}

void GLViewImpl::setFrameZoomFactor(float fZoomFactor)
{
    m_fFrameZoomFactor = fZoomFactor;
    resize((int) (_screenSize.width * fZoomFactor), (int) (_screenSize.height * fZoomFactor));
    centerWindow();
    Director::getInstance()->setProjection(Director::getInstance()->getProjection());
}


float GLViewImpl::getFrameZoomFactor()
{
    return m_fFrameZoomFactor;
}

void GLViewImpl::setFrameSize(float width, float height)
{
	// not implemented in WinRT. Window is always full screen
    // GLViewProtocol::setFrameSize(width, height);
}

void GLViewImpl::centerWindow()
{
	// not implemented in WinRT. Window is always full screen
}

void GLViewImpl::OnSuspending()
{
    if (m_winRTWindow)
    {
        m_winRTWindow->OnSuspending();
    }
}

GLViewImpl* GLViewImpl::sharedOpenGLView()
{
    return s_pEglView;
}

int GLViewImpl::Run() 
{
	m_running = true; 

	return 0;
};


void GLViewImpl::OnRendering()
{
	if(m_running && m_initialized)
	{
		Director::sharedDirector()->mainLoop();
	}
}

void GLViewImpl::HideKeyboard(Windows::Foundation::Rect r)
{
    return; // not implemented
#if 0
	float height = m_keyboardRect.Height;
	float factor = _scaleY / CC_CONTENT_SCALE_FACTOR();
	height = (float)height / factor;

	Rect rect_end(0, 0, 0, 0);
	Rect rect_begin(0, 0, _screenSize.width / factor, height);

    IMEKeyboardNotificationInfo info;
    info.begin = rect_begin;
    info.end = rect_end;
    info.duration = 0;
    IMEDispatcher::sharedDispatcher()->dispatchKeyboardWillHide(info);
    IMEDispatcher::sharedDispatcher()->dispatchKeyboardDidHide(info);
#endif
}

void GLViewImpl::ShowKeyboard(Windows::Foundation::Rect r)
{
    return; // not implemented
#if 0
	float height = r.Height;
	float factor = _scaleY / CC_CONTENT_SCALE_FACTOR();
	height = (float)height / factor;

	Rect rect_begin(0.0f, 0.0f - height, _screenSize.width / factor, height);
	Rect rect_end(0.0f, 0.0f, _screenSize.width / factor, height);

    CCIMEKeyboardNotificationInfo info;
    info.begin = rect_begin;
    info.end = rect_end;
    info.duration = 0;
    CCIMEDispatcher::sharedDispatcher()->dispatchKeyboardWillShow(info);
    CCIMEDispatcher::sharedDispatcher()->dispatchKeyboardDidShow(info);
	m_keyboardRect = r;
#endif
}


void GLViewImpl::UpdateForWindowSizeChange()
{
    float width = ConvertDipsToPixels(m_window->Bounds.Width);
    float height = ConvertDipsToPixels(m_window->Bounds.Height);

	if(!m_initialized)
    {
        m_initialized = true;
        GLView::setFrameSize(width, height);
    }
    else
    {
        setFrameSize(width, height);
        Size designSize = getDesignResolutionSize();
        GLViewImpl::sharedOpenGLView()->setDesignResolutionSize(designSize.width, designSize.height, ResolutionPolicy::SHOW_ALL);
        Director::sharedDirector()->setProjection(Director::sharedDirector()->getProjection());
   }
}

void GLViewImpl::QueueEvent(std::shared_ptr<InputEvent>& event)
{
    std::lock_guard<std::mutex> guard(mMutex);
    mInputEvents.push(event);
}

NS_CC_END

#endif // (CC_TARGET_PLATFORM == CC_PLATFORM_WINRT)