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     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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     7 ** This file is part of the QtGui module of the Qt Toolkit.

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    16 ** GNU Lesser General Public License Usage

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    18 ** General Public License version 2.1 as published by the Free Software

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    38 ** $QT_END_LICENSE$

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    40 ****************************************************************************/

    41 

    42 #include <QtGui/qpaintdevice.h>

    43 #include <QtGui/qpixmap.h>

    44 #include <QtGui/qwidget.h>

    45 #include "qegl_p.h"

    46 

    47 #include <windows.h>

    48 

    49 

    50 QT_BEGIN_NAMESPACE

    51 

    52 EGLSurface QEglContext::createSurface(QPaintDevice *device, const QEglProperties *properties)

    53 {

    54     // Create the native drawable for the paint device.

    55     int devType = device->devType();

    56     EGLNativePixmapType pixmapDrawable = 0;

    57     EGLNativeWindowType windowDrawable = 0;

    58     bool ok;

    59     if (devType == QInternal::Pixmap) {

    60         pixmapDrawable = 0;

    61         ok = (pixmapDrawable != 0);

    62     } else if (devType == QInternal::Widget) {

    63         windowDrawable = (EGLNativeWindowType)(static_cast<QWidget *>(device))->winId();

    64         ok = (windowDrawable != 0);

    65     } else {

    66         ok = false;

    67     }

    68     if (!ok) {

    69         qWarning("QEglContext::createSurface(): Cannot create the native EGL drawable");

    70         return EGL_NO_SURFACE;

    71     }

    72 

    73     // Create the EGL surface to draw into, based on the native drawable.

    74     const int *props;

    75     if (properties)

    76         props = properties->properties();

    77     else

    78         props = 0;

    79     EGLSurface surf;

    80     if (devType == QInternal::Widget)

    81         surf = eglCreateWindowSurface(dpy, cfg, windowDrawable, props);

    82     else

    83         surf = eglCreatePixmapSurface(dpy, cfg, pixmapDrawable, props);

    84     if (surf == EGL_NO_SURFACE) {

    85         qWarning("QEglContext::createSurface(): Unable to create EGL surface, error = 0x%x", eglGetError());

    86     }

    87     return surf;

    88 }

    89 

    90 EGLDisplay QEglContext::getDisplay(QPaintDevice *device)

    91 {

    92     EGLDisplay dpy = 0;

    93     HWND win = (static_cast<QWidget*>(device))->winId();

    94     HDC myDc = GetDC(win);

    95     if (!myDc) {

    96         qWarning("QEglContext::defaultDisplay(): WinCE display is not open");

    97     }

    98     dpy = eglGetDisplay(EGLNativeDisplayType(myDc));

    99     if (dpy == EGL_NO_DISPLAY) {

   100         qWarning("QEglContext::defaultDisplay(): Falling back to EGL_DEFAULT_DISPLAY");

   101         dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);

   102     }

   103     return dpy;

   104 }

   105 

   106 // Set pixel format and other properties based on a paint device.

   107 void QEglProperties::setPaintDeviceFormat(QPaintDevice *dev)

   108 {

   109     int devType = dev->devType();

   110     if (devType == QInternal::Image)

   111         setPixelFormat(static_cast<QImage *>(dev)->format());

   112     else

   113         setPixelFormat(QImage::Format_RGB16); // XXX

   114 }

   115 

   116 QT_END_NAMESPACE