C++ (Cpp) qt_egl_add_platform_configの例

コード例 #1

ファイル: qgl_x11egl.cpp プロジェクト: Fale/qtmoko

bool QGLContext::chooseContext(const QGLContext* shareContext)
{
    Q_D(QGLContext);

    if (!device())
        return false;

    int devType = device()->devType();

    // Get the display and initialize it.
    d->eglContext = new QEglContext();
    d->eglContext->setApi(QEglContext::OpenGL);
    if (!d->eglContext->openDisplay(device())) {
        delete d->eglContext;
        d->eglContext = 0;
        return false;
    }

    // Construct the configuration we need for this surface.
    QEglProperties configProps;
    qt_egl_set_format(configProps, devType, d->glFormat);
    qt_egl_add_platform_config(configProps, device());
    configProps.setRenderableType(QEglContext::OpenGL);

    // Search for a matching configuration, reducing the complexity
    // each time until we get something that matches.
    if (!d->eglContext->chooseConfig(configProps, QEglContext::BestPixelFormat)) {
        delete d->eglContext;
        d->eglContext = 0;
        return false;
    }

    // Inform the higher layers about the actual format properties.
    qt_egl_update_format(*(d->eglContext), d->glFormat);

    // Create a new context for the configuration.
    if (!d->eglContext->createContext
            (shareContext ? shareContext->d_func()->eglContext : 0)) {
        delete d->eglContext;
        d->eglContext = 0;
        return false;
    }

#if defined(EGL_VERSION_1_1)
    if (d->glFormat.swapInterval() != -1 && devType == QInternal::Widget)
        eglSwapInterval(d->eglContext->display(), d->glFormat.swapInterval());
#endif

    // Create the EGL surface to draw into.
    if (!d->eglContext->createSurface(device())) {
        delete d->eglContext;
        d->eglContext = 0;
        return false;
    }

    return true;
}

コード例 #2

ファイル: qgl_qws.cpp プロジェクト: Nacto1/qt-everywhere-opensource-src-4.6.2

bool QGLContext::chooseContext(const QGLContext* shareContext)
{
    Q_D(QGLContext);

    // Validate the device.
    if (!device())
        return false;
    int devType = device()->devType();
    if (devType != QInternal::Pixmap && devType != QInternal::Image && devType != QInternal::Widget) {
        qWarning("QGLContext::chooseContext(): Cannot create QGLContext's for paint device type %d", devType);
        return false;
    }

    // Get the display and initialize it.
    d->eglContext = new QEglContext();
    d->eglContext->setApi(QEgl::OpenGL);
    if (!d->eglContext->openDisplay(device())) {
        delete d->eglContext;
        d->eglContext = 0;
        return false;
    }

    // Construct the configuration we need for this surface.
    QEglProperties configProps;
    qt_egl_add_platform_config(configProps, device());
    qt_egl_set_format(configProps, devType, d->glFormat);
    configProps.setRenderableType(QEgl::OpenGL);

    // Search for a matching configuration, reducing the complexity
    // each time until we get something that matches.
    if (!d->eglContext->chooseConfig(configProps)) {
        delete d->eglContext;
        d->eglContext = 0;
        return false;
    }

    // Inform the higher layers about the actual format properties.
    qt_egl_update_format(*(d->eglContext), d->glFormat);

    // Create a new context for the configuration.
    if (!d->eglContext->createContext
            (shareContext ? shareContext->d_func()->eglContext : 0)) {
        delete d->eglContext;
        d->eglContext = 0;
        return false;
    }
    d->sharing = d->eglContext->isSharing();
    if (d->sharing && shareContext)
        const_cast<QGLContext *>(shareContext)->d_func()->sharing = true;

#if defined(EGL_VERSION_1_1)
    if (d->glFormat.swapInterval() != -1 && devType == QInternal::Widget)
        eglSwapInterval(d->eglContext->display(), d->glFormat.swapInterval());
#endif

    // Create the EGL surface to draw into.  We cannot use
    // QEglContext::createSurface() because it does not have
    // access to the QGLScreen.
    d->eglSurface = qt_egl_create_surface(d->eglContext, device());
    if (d->eglSurface == EGL_NO_SURFACE) {
        delete d->eglContext;
        d->eglContext = 0;
        return false;
    }

    return true;
}