/*

* Copyright (C) 2024 Igalia S.L.

*

* Redistribution and use in source and binary forms, with or without

* modification, are permitted provided that the following conditions

* are met:

* 1. Redistributions of source code must retain the above copyright

* notice, this list of conditions and the following disclaimer.

* 2. Redistributions in binary form must reproduce the above copyright

* notice, this list of conditions and the following disclaimer in the

* documentation and/or other materials provided with the distribution.

*

* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY

* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR

* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/

#include "config.h"

#include "Display.h"

#if PLATFORM(X11)

#include <WebCore/GLContext.h>

#include <WebCore/GLDisplay.h>

#include <WebCore/XErrorTrapper.h>

#include <X11/Xatom.h>

#include <epoxy/egl.h>

#include <gtk/gtk.h>

#if USE(GTK4)

#include <gdk/x11/gdkx.h>

#else

#include <gdk/gdkx.h>

#endif

namespace WebKit {

using namespace WebCore;

bool Display::isX11() const

{

return GDK_IS_X11_DISPLAY(m_gdkDisplay.get());

}

bool Display::initializeGLDisplayX11() const

{

if (!isX11())

return false;

#if USE(GTK4)

m_glDisplay = GLDisplay::create(gdk_x11_display_get_egl_display(m_gdkDisplay.get()));

if (m_glDisplay)

return true;

#endif

auto* xDisplay = GDK_DISPLAY_XDISPLAY(m_gdkDisplay.get());

const char* extensions = eglQueryString(nullptr, EGL_EXTENSIONS);

if (GLContext::isExtensionSupported(extensions, "EGL_KHR_platform_base"))

m_glDisplay = GLDisplay::create(eglGetPlatformDisplay(EGL_PLATFORM_X11_KHR, xDisplay, nullptr));

if (!m_glDisplay && GLContext::isExtensionSupported(extensions, "EGL_EXT_platform_base"))

m_glDisplay = GLDisplay::create(eglGetPlatformDisplayEXT(EGL_PLATFORM_X11_KHR, xDisplay, nullptr));

if (!m_glDisplay)

m_glDisplay = GLDisplay::create(eglGetDisplay(xDisplay));

if (m_glDisplay) {

m_glDisplayOwned = true;

return true;

}

return false;

}

} // namespace WebKit

#endif // PLATFORM(X11)