axmol/cocos2dx/platform/uphone/CCXEGLView_uphone.cpp

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

http://www.cocos2d-x.org

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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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****************************************************************************/

#include "CCXEGLView_uphone.h"

#include "TG3.h"

#include "EGL/egl.h"

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

namespace cocos2d {

class CCXEGL
{
public:
    CCXEGL() 
    : m_pDC(NULL)
    , m_eglDisplay(EGL_NO_DISPLAY)
    , m_eglSurface(EGL_NO_SURFACE)
    , m_eglContext(EGL_NO_CONTEXT) {}

    ~CCXEGL() { CCX_SAFE_DELETE(m_pDC); }

    TDC *       m_pDC;
    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()
{
    _releaseEGL();
    delete m_pSet;
    delete m_pTouch;
}

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

    switch(pEvent->eType)
    {
    case EVENT_WinInit:
        {
            _initEGL();
            if (! m_pEGL)
            {
                break;
            }
            bHandled = TRUE;
        }
        break;

    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;

    case EVENT_WinClose:
        {
            // Stop the application since the main form has been closed
            _releaseEGL();
        }
        break;
    }

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

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()
{
    _releaseEGL();
    CloseWindow();
}

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

void CCXEGLView::swapBuffers()
{
    // DrawWindow();
    if (m_pEGL)
    {
        eglSwapBuffers(m_pEGL->m_eglDisplay, m_pEGL->m_eglSurface);
    }
}

//////////////////////////////////////////////////////////////////////////
// private member for initialize EGL
//////////////////////////////////////////////////////////////////////////

void CCXEGLView::_initEGL()
{
    TDC * pDC = NULL;
    CCXEGL * pEGL = new CCXEGL;

    do 
    {
        CCX_BREAK_IF(m_pEGL || ! pEGL);

        pDC = new TDC(this);
        CCX_BREAK_IF(! pDC);

        EGLNativeDisplayType displayId = (EGLNativeDisplayType) pDC;
        EGLDisplay eglDisplay;
        CCX_BREAK_IF(EGL_NO_DISPLAY == (eglDisplay = eglGetDisplay(displayId)));

        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;
        EGLNativeWindowType eglWnd = (EGLNativeWindowType) this;
        CCX_BREAK_IF(EGL_NO_SURFACE == (eglSurface = eglCreateWindowSurface(eglDisplay, eglConfig, eglWnd, NULL)));

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

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

        m_pEGL = pEGL;
        pEGL->m_eglDisplay = eglDisplay;
        pEGL->m_eglSurface = eglSurface;
        pEGL->m_eglContext = eglContext;
        pEGL->m_pDC = pDC;
        pDC = NULL;
        pEGL = NULL;
    } while (0);

    CCX_SAFE_DELETE(pDC);
    CCX_SAFE_DELETE(pEGL);
}

void CCXEGLView::_releaseEGL()
{
    if (! m_pEGL)
    {
        return;
    }

    eglMakeCurrent(m_pEGL->m_eglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
    eglTerminate(m_pEGL->m_eglDisplay);
    CCX_SAFE_DELETE(m_pEGL);
}

}