/****************************************************************************
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** Public License version 3.0 as published by the Free Software Foundation
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****************************************************************************/

#include "qkmsscreen.h"
#include "qkmsdevice.h"
#include "qkmscontext.h"
#include "qkmswindow.h"


QT_BEGIN_NAMESPACE

QKmsContext::QKmsContext(QKmsDevice *device)
    : QPlatformOpenGLContext(),
      m_device(device)
{
}

bool QKmsContext::makeCurrent(QPlatformSurface *surface)
{
    EGLDisplay display = m_device->eglDisplay();
    EGLContext context = m_device->eglContext();

    bool ok = eglMakeCurrent(display, EGL_NO_SURFACE,
                             EGL_NO_SURFACE, context);
    if (!ok)
        qWarning("QKmsContext::makeCurrent(): eglError: %d, this: %p",
                 eglGetError(), this);

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

void QKmsContext::doneCurrent()
{
    QPlatformOpenGLContext::doneCurrent();
    bool ok = eglMakeCurrent(m_device->eglDisplay(), EGL_NO_SURFACE, EGL_NO_SURFACE,
                             EGL_NO_CONTEXT);
    if (!ok)
        qWarning("QKmsContext::doneCurrent(): eglError: %d, this: %p",
                 eglGetError(), this);

}

void QKmsContext::swapBuffers(QPlatformSurface *surface)
{
    //After flush, the current render target should be moved to
    //latest complete
    glFlush();

    //Cast context to a window surface and get the screen the context
    //is on and call swapBuffers on that screen.
    QPlatformWindow *window = static_cast<QPlatformWindow *>(surface);
    QKmsScreen *screen = static_cast<QKmsScreen *> (QPlatformScreen::platformScreenForWindow(window->window()));
    screen->swapBuffers();
}

void (*QKmsContext::getProcAddress(const QByteArray &procName)) ()
{
    return eglGetProcAddress(procName.data());
}


EGLContext QKmsContext::eglContext() const
{
    return m_device->eglContext();
}

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

QT_END_NAMESPACE