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#include "qopenwfdglcontext.h"

#include "qopenwfdwindow.h"
#include "qopenwfdscreen.h"
#include <dlfcn.h>

QOpenWFDGLContext::QOpenWFDGLContext(QOpenWFDDevice *device)
    : QPlatformOpenGLContext()
    , mWfdDevice(device)
{
}

QSurfaceFormat QOpenWFDGLContext::format() const
{
    return QSurfaceFormat();
}

bool QOpenWFDGLContext::makeCurrent(QPlatformSurface *surface)
{
    Q_ASSERT(surface->surface()->surfaceType() == QSurface::OpenGLSurface);

    EGLDisplay display = mWfdDevice->eglDisplay();
    EGLContext context = mWfdDevice->eglContext();
    if (!eglMakeCurrent(display,EGL_NO_SURFACE,EGL_NO_SURFACE,context)) {
        qDebug() << "GLContext: eglMakeCurrent FAILED!";
    }

    QPlatformWindow *window = static_cast<QPlatformWindow *>(surface);
    QOpenWFDScreen *screen = static_cast<QOpenWFDScreen *>(QPlatformScreen::platformScreenForWindow(window->window()));
    screen->bindFramebuffer();
    return true;
}

void QOpenWFDGLContext::doneCurrent()
{
    //do nothing :)
}

void QOpenWFDGLContext::swapBuffers(QPlatformSurface *surface)
{
    glFlush();

    QPlatformWindow *window = static_cast<QPlatformWindow *>(surface);
    QOpenWFDScreen *screen = static_cast<QOpenWFDScreen *>(QPlatformScreen::platformScreenForWindow(window->window()));

    screen->swapBuffers();
}

QFunctionPointer QOpenWFDGLContext::getProcAddress(const char *procName)
{
    QFunctionPointer proc = (QFunctionPointer) eglGetProcAddress(procName);
    if (!proc)
        proc = (QFunctionPointer) dlsym(RTLD_DEFAULT, procName);
    return proc;
}

EGLContext QOpenWFDGLContext::eglContext() const
{
    return mWfdDevice->eglContext();
}