axmol/cocos2dx/platform/uphone/CCXEGLView_uphone.cpp

/****************************************************************************
Copyright (c) 2010 cocos2d-x.org

http://www.cocos2d-x.org

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/

#include <windows.h>
#include "CCXEGLView_uphone.h"

#include "EGL/egl.h"

#include "Cocos2dDefine.h"
#include "cocoa/NSSet.h"
#include "touch_dispatcher/CCTouch.h"
#include "touch_dispatcher/CCTouchDispatcher.h"

#define WIN_CLASS_NAME      "OpenGL"

static bool  g_keys[256];               // Array Used For The Keyboard Routine
static bool  g_active=TRUE;             // Window Active Flag Set To TRUE By Default

EGLNativeWindowType _CreateWnd(int width, int height);
LRESULT  CALLBACK _WndProc(HWND, UINT, WPARAM, LPARAM);

namespace cocos2d {

class CCXEGL
{
public:
    ~CCXEGL() 
    {
        if (EGL_NO_DISPLAY != m_eglDisplay)
        {
            eglMakeCurrent(m_eglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
            eglTerminate(m_eglDisplay);
        }
        if (m_eglDC)
        {
            ReleaseDC(m_eglWnd, m_eglDC);
        }
        if (m_eglWnd)
        {
            DestroyWindow(m_eglWnd);
        }
        UnregisterClass(WIN_CLASS_NAME, GetModuleHandle(NULL));
    }

    static CCXEGL * Create(TWindow * pWindow)
    {
        CCXEGL * pEGL = new CCXEGL;
        Boolean bSuccess = FALSE;

        do 
        {
            CCX_BREAK_IF(! pEGL);

            TRectangle rc;
            pWindow->GetClientBounds(&rc);

            CCX_BREAK_IF(! (pEGL->m_eglWnd = _CreateWnd(rc.Width(), rc.Height())));

            pEGL->m_eglDC = GetDC(pEGL->m_eglWnd);
            CCX_BREAK_IF(! pEGL->m_eglDC);

            EGLDisplay eglDisplay;
            CCX_BREAK_IF(EGL_NO_DISPLAY == (eglDisplay = eglGetDisplay(pEGL->m_eglDC)));

            EGLint nMajor, nMinor;
            CCX_BREAK_IF(EGL_FALSE == eglInitialize(eglDisplay, &nMajor, &nMinor) || 1 != nMajor);

            const EGLint aConfigAttribs[] =
            {
                EGL_LEVEL,				0,
                EGL_SURFACE_TYPE,		EGL_WINDOW_BIT,
                EGL_RENDERABLE_TYPE,	EGL_OPENGL_ES2_BIT,
                EGL_NATIVE_RENDERABLE,	EGL_FALSE,
                EGL_DEPTH_SIZE,			EGL_DONT_CARE,
                EGL_NONE,
            };
            EGLint iConfigs;
            EGLConfig eglConfig;
            CCX_BREAK_IF(EGL_FALSE == eglChooseConfig(eglDisplay, aConfigAttribs, &eglConfig, 1, &iConfigs) 
                || (iConfigs != 1));

            EGLSurface eglSurface;
            eglSurface = eglCreateWindowSurface(eglDisplay, eglConfig, pEGL->m_eglWnd, NULL);
            CCX_BREAK_IF(EGL_NO_SURFACE == eglSurface);

            EGLContext eglContext;
            eglContext = eglCreateContext(eglDisplay, eglConfig, NULL, NULL);
            CCX_BREAK_IF(EGL_NO_CONTEXT == eglContext);

            CCX_BREAK_IF(EGL_FALSE == eglMakeCurrent(eglDisplay, eglSurface, eglSurface, eglContext));

            pEGL->m_eglDisplay = eglDisplay;
            pEGL->m_eglSurface = eglSurface;
            pEGL->m_eglContext = eglContext;
            bSuccess = TRUE;
        } while (0);

        if (! bSuccess)
        {
            CCX_SAFE_DELETE(pEGL);   
        }

        return pEGL;
    }

    void SwapBuffers()
    {
        if (EGL_NO_DISPLAY != m_eglDisplay)
        {
            eglSwapBuffers(m_eglDisplay, m_eglSurface);
        }
    }
private:
    CCXEGL() 
        : m_eglWnd(NULL)
        , m_eglDC(NULL)
        , m_eglDisplay(EGL_NO_DISPLAY)
        , m_eglSurface(EGL_NO_SURFACE)
        , m_eglContext(EGL_NO_CONTEXT) {}


    EGLNativeWindowType     m_eglWnd;
    EGLNativeDisplayType    m_eglDC;
    EGLDisplay              m_eglDisplay;
    EGLSurface              m_eglSurface;
    EGLContext              m_eglContext;
};
CCXEGLView::CCXEGLView(TApplication * pApp)
: TWindow(pApp)
, m_bCaptured(false)
, m_pDelegate(NULL)
, m_pEGL(NULL)
{
    m_pTouch    = new CCTouch;
    m_pSet      = new NSSet;
}

CCXEGLView::~CCXEGLView()
{
    delete m_pEGL;
    delete m_pSet;
    delete m_pTouch;
}

Boolean CCXEGLView::AfterCreate(void)
{
    return (m_pEGL = CCXEGL::Create(this)) ? TRUE : FALSE;
}

Boolean CCXEGLView::EventHandler(TApplication * pApp, EventType * pEvent)
{
    Boolean bHandled = FALSE;

    switch(pEvent->eType)
    {
    case EVENT_WinPaint:
        {
            swapBuffers();
            bHandled = TRUE;
        }
        break;

    case EVENT_PenDown:
        if (m_pDelegate && m_pTouch && m_pSet && SetCaptureEx(-1, TRUE))
        {
            m_bCaptured = true;
//                 SS_printf("Down    %4d    %4d\n", pEvent->sParam1, pEvent->sParam2);
            m_pTouch->SetTouchInfo(0, (float)pEvent->sParam1, (float)pEvent->sParam2);
            m_pSet->addObject(m_pTouch);
            m_pDelegate->touchesBegan(m_pSet, NULL);
            bHandled = TRUE;
        }
        break;

    case EVENT_PenMove:
        if (m_pDelegate && m_pTouch && m_pSet && m_bCaptured)
        {
            TRectangle rc;
            GetBounds(&rc);
            if (rc.IsInRect(pEvent->sParam1, pEvent->sParam2))
            {
//                     SS_printf("Move    %4d    %4d\n", pEvent->sParam1, pEvent->sParam2);
                m_pTouch->SetTouchInfo(0, (float)pEvent->sParam1, (float)pEvent->sParam2);
                m_pDelegate->touchesMoved(m_pSet, NULL);
                bHandled = TRUE;
            }
        }
        break;

    case EVENT_PenUp:
        if (m_pDelegate && m_pTouch && m_pSet && m_bCaptured)
        {
            ReleaseCapture();
//                 SS_printf("Up      %4d    %4d\n", pEvent->sParam1, pEvent->sParam2);
            m_pTouch->SetTouchInfo(0, (float)pEvent->sParam1, (float)pEvent->sParam2);
            m_pDelegate->touchesEnded(m_pSet, NULL);
            bHandled = TRUE;
        }
        break;
    }

    if (! bHandled)
    {
        return TWindow::EventHandler(pApp, pEvent);
    }
    return bHandled;
}

CGSize CCXEGLView::getSize()
{
    TRectangle rc;
    GetBounds(&rc);
    return CGSize((float)rc.Width(), (float)rc.Height());
}

bool CCXEGLView::isOpenGLReady()
{
    return (NULL != m_pEGL);
}

void CCXEGLView::release()
{
    CCX_SAFE_DELETE(m_pEGL);
    CloseWindow();
}

void CCXEGLView::setTouchDelegate(EGLTouchDelegate * pDelegate)
{
    m_pDelegate = pDelegate;
}

void CCXEGLView::swapBuffers()
{
    // DrawWindow();
    if (m_pEGL)
    {
        m_pEGL->SwapBuffers();
    }
}

}       // end of namespace cocos2d

//////////////////////////////////////////////////////////////////////////
// static function
//////////////////////////////////////////////////////////////////////////

static EGLNativeWindowType _CreateWnd(int width, int height)
{
    WNDCLASS  wc;                  // Windows Class Structure
    HINSTANCE hInstance;
    EGLNativeWindowType hWnd = NULL;

    hInstance         = GetModuleHandle( NULL );             // Grab An Instance For Our Window
    wc.style          = CS_NOCLOSE | CS_HREDRAW | CS_VREDRAW | CS_OWNDC;  // Redraw On Size, And Own DC For Window.
    wc.lpfnWndProc    = WNDPROC( _WndProc );                  // WndProc Handles Messages
    wc.cbClsExtra     = 0;                                   // No Extra Window Data
    wc.cbWndExtra     = 0;                                   // No Extra Window Data
    wc.hInstance      = hInstance;                           // Set The Instance
    wc.hIcon          = LoadIcon( NULL, IDI_WINLOGO );       // Load The Default Icon
    wc.hCursor        = LoadCursor( NULL, IDC_ARROW );       // Load The Arrow Pointer
    wc.hbrBackground  = NULL;                                // No Background Required For GL
    wc.lpszMenuName   = NULL;                                // We Don't Want A Menu
    wc.lpszClassName  = WIN_CLASS_NAME;                            // Set The Class Name

    RegisterClass(&wc);                            // Attempt To Register The Window Class

    RECT rect = {0, 0, width, height};
    AdjustWindowRectEx(&rect, WS_POPUPWINDOW, false, WS_EX_TOPMOST | WS_EX_APPWINDOW | WS_EX_WINDOWEDGE);
    hWnd = CreateWindowEx(
        WS_EX_TOPMOST | WS_EX_APPWINDOW | WS_EX_WINDOWEDGE,       // Extended Style For The Window
        "OpenGL",                             // Class Name
        "Effect Test App",                    // Window Title
        WS_POPUPWINDOW/*WS_OVERLAPPEDWINDOW*/ |                     // Defined Window Style
        WS_CLIPSIBLINGS |                         // Required Window Style
        WS_CLIPCHILDREN,                          // Required Window Style
        0, 0,                                     // Window Position
        rect.right - rect.left,                                    // Window Width
        rect.bottom - rect.top,                                   // Window Height
        NULL,                                     // No Parent Window
        NULL,                                     // No Menu
        hInstance,                                // Instance
        NULL );

    return hWnd;
}

static LRESULT CALLBACK _WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    switch ( uMsg )      // Check For Windows Messages
    {
    case WM_ACTIVATE:
        {
            if ( ! HIWORD( wParam ) )     // Check Minimization State
            {
                g_active = TRUE;
            }
            else
            {
                g_active = FALSE;
            }
            return 0;
        }

    case WM_SYSCOMMAND:
        {
            if ( ( wParam == SC_SCREENSAVE ) ||
                ( wParam == SC_MONITORPOWER ) )
            {
                return 0;
            }
            break;
        }

    case WM_CLOSE:
        {
            PostQuitMessage( 0 );
            return 0;
        }

    case WM_KEYDOWN:
        {
            g_keys[wParam] = TRUE;
            return 0;
        }

    case WM_KEYUP:
        {
            g_keys[wParam] = FALSE;
            return 0;
        }

    case WM_SIZE:
        {
            //ResizeScene( LOWORD( lParam ), HIWORD( lParam ) );  // LoWord=Width, HiWord=Height
            return 0;
        }
    }

    // Pass All Unhandled Messages To DefWindowProc
    return DefWindowProc( hWnd, uMsg, wParam, lParam );
}