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#include <QtCore/QDebug>

#include "qwaylandxcompositeglxcontext.h"

#include "qwaylandxcompositeglxwindow.h"

#include <QRegion>

QWaylandXCompositeGLXSurface::QWaylandXCompositeGLXSurface(QWaylandXCompositeGLXWindow *window)
    : m_window(window)
{
}

Window QWaylandXCompositeGLXSurface::xWindow() const
{
    return m_window->xWindow();
}

QWaylandXCompositeGLXContext::QWaylandXCompositeGLXContext(const QGuiGLFormat &format, QPlatformGLContext *share, Display *display, int screen)
    : m_display(display)
{
    GLXContext shareContext = share ? static_cast<QWaylandXCompositeGLXContext *>(share)->m_context : 0;

    GLXFBConfig config = qglx_findConfig(display, screen, format);
    XVisualInfo *visualInfo = glXGetVisualFromFBConfig(display, config);
    m_context = glXCreateContext(display, visualInfo, shareContext, true);
    m_format = qglx_guiGLFormatFromGLXFBConfig(display, config, m_context);
}

bool QWaylandXCompositeGLXContext::makeCurrent(const QPlatformGLSurface &surface)
{
    Window xWindow = static_cast<const QWaylandXCompositeGLXSurface &>(surface).xWindow();

    return glXMakeCurrent(m_display, xWindow, m_context);
}

void QWaylandXCompositeGLXContext::doneCurrent()
{
    glXMakeCurrent(m_display, 0, 0);
}

void QWaylandXCompositeGLXContext::swapBuffers(const QPlatformGLSurface &surface)
{
    const QWaylandXCompositeGLXSurface &s =
        static_cast<const QWaylandXCompositeGLXSurface &>(surface);

    QSize size = s.window()->geometry().size();

    glXSwapBuffers(m_display, s.xWindow());

    s.window()->damage(QRect(QPoint(), size));
    s.window()->waitForFrameSync();
}

void (*QWaylandXCompositeGLXContext::getProcAddress(const QByteArray &procName)) ()
{
    return glXGetProcAddress(reinterpret_cast<const GLubyte *>(procName.constData()));
}

QGuiGLFormat QWaylandXCompositeGLXContext::format() const
{
    return m_format;
}