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#include "qeglfs_hooks.h"

#include <X11/Xlib.h>

QEglFSHooks platform_hooks;
static Display *display = 0;

void QEglFSHooks::platformInit()
{
    display = XOpenDisplay(NULL);
    if (!display)
        qFatal("Could not open display");
}

void QEglFSHooks::platformDestroy()
{
    XCloseDisplay(display);
}

EGLNativeDisplayType QEglFSHooks::platformDisplay() const
{
    return display;
}

QSize QEglFSHooks::screenSize() const
{
    QList<QByteArray> env = qgetenv("EGLFS_X11_SIZE").split('x');
    if (env.length() != 2)
        return QSize(640, 480);
    return QSize(env.at(0).toInt(), env.at(1).toInt());
}

EGLNativeWindowType QEglFSHooks::createNativeWindow(const QSize &size)
{
    Window root = DefaultRootWindow(display);
    XSetWindowAttributes swa;
    memset(&swa, 0, sizeof(swa));
    Window win  = XCreateWindow(display, root, 0, 0, size.width(), size.height(), 0, CopyFromParent,
                                InputOutput, CopyFromParent, CWEventMask, &swa);
    XMapWindow(display, win);
    XStoreName(display, win, "EGLFS");
    return win;
}

void QEglFSHooks::destroyNativeWindow(EGLNativeWindowType window)
{
    XDestroyWindow(display, window);
}