qgl_qws.cpp File Reference

#include "qgl.h"
#include "qgl_egl_p.h"
#include "qglpixelbuffer.h"
#include <qglscreen_qws.h>
#include <qscreenproxy_qws.h>
#include <private/qglwindowsurface_qws_p.h>
#include <private/qbackingstore_p.h>
#include <private/qfont_p.h>
#include <private/qfontengine_p.h>
#include <private/qgl_p.h>
#include <private/qpaintengine_opengl_p.h>
#include <qpixmap.h>
#include <qtimer.h>
#include <qapplication.h>
#include <qstack.h>
#include <qdesktopwidget.h>
#include <qdebug.h>
#include <qvarlengtharray.h>

Go to the source code of this file.

Classes
class	QGLTemporaryContextPrivate

Functions
static QGLScreen *	glScreenForDevice (QPaintDevice *device)
static EGLSurface	qt_egl_create_surface (QEglContext *context, QPaintDevice *device, const QEglProperties *properties=0)

Function Documentation

glScreenForDevice()

static QGLScreen* glScreenForDevice ( QPaintDevice *  device )

static

Definition at line 65 of file qgl_qws.cpp.

Referenced by qt_egl_create_surface().

{
    QScreen *screen = qt_screen;
    if (screen->classId() == QScreen::MultiClass) {
        int screenNumber;
        if (device && device->devType() == QInternal::Widget)
            screenNumber = qApp->desktop()->screenNumber(static_cast<QWidget *>(device));
        else
            screenNumber = 0;
        screen = screen->subScreens()[screenNumber];
    }
    while (screen->classId() == QScreen::ProxyClass ||
           screen->classId() == QScreen::TransformedClass) {
        screen = static_cast<QProxyScreen *>(screen)->screen();
    }
    if (screen->classId() == QScreen::GLClass)
        return static_cast<QGLScreen *>(screen);
    else
        return 0;
}

qt_egl_create_surface()

static EGLSurface qt_egl_create_surface ( QEglContext *  context, QPaintDevice *  device, const QEglProperties *  properties = 0  )

static

Definition at line 123 of file qgl_qws.cpp.

{
    // Get the screen surface functions, which are used to create native ids.
    QGLScreen *glScreen = glScreenForDevice(device);
    if (!glScreen)
        return EGL_NO_SURFACE;
    QGLScreenSurfaceFunctions *funcs = glScreen->surfaceFunctions();
    if (!funcs)
        return EGL_NO_SURFACE;

    // Create the native drawable for the paint device.
    int devType = device->devType();
    EGLNativePixmapType pixmapDrawable = 0;
    EGLNativeWindowType windowDrawable = 0;
    bool ok;
    if (devType == QInternal::Pixmap) {
        ok = funcs->createNativePixmap(static_cast<QPixmap *>(device), &pixmapDrawable);
    } else if (devType == QInternal::Image) {
        ok = funcs->createNativeImage(static_cast<QImage *>(device), &pixmapDrawable);
    } else {
        ok = funcs->createNativeWindow(static_cast<QWidget *>(device), &windowDrawable);
    }
    if (!ok) {
        qWarning("QEglContext::createSurface(): Cannot create the native EGL drawable");
        return EGL_NO_SURFACE;
    }

    // Create the EGL surface to draw into, based on the native drawable.
    const EGLint *props;
    if (properties)
        props = properties->properties();
    else
        props = 0;
    EGLSurface surf;
    if (devType == QInternal::Widget) {
        surf = eglCreateWindowSurface
            (context->display(), context->config(), windowDrawable, props);
    } else {
        surf = eglCreatePixmapSurface
            (context->display(), context->config(), pixmapDrawable, props);
    }
    if (surf == EGL_NO_SURFACE)
        qWarning("QEglContext::createSurface(): Unable to create EGL surface, error = 0x%x", eglGetError());
    return surf;
}