Source/WebCore/platform/graphics/gtk/GdkCairoUtilities.cpp

/*
 * Copyright (C) 2010 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 "CairoUtilities.h"

#include "GdkCairoUtilities.h"
#include "IntSize.h"
#include <cairo.h>
#include <gtk/gtk.h>
#include <mutex>
#include <wtf/NeverDestroyed.h>
#include <wtf/glib/GUniquePtr.h>

namespace WebCore {

const cairo_font_options_t* getDefaultCairoFontOptions()
{
    if (auto* screen = gdk_screen_get_default()) {
        if (auto* options = gdk_screen_get_font_options(screen))
            return options;
    }

    static cairo_font_options_t* options;
    static std::once_flag flag;
    std::call_once(flag, [] {
        options = cairo_font_options_create();
    });
    return options;
}

GdkPixbuf* cairoSurfaceToGdkPixbuf(cairo_surface_t* surface)
{
    IntSize size = cairoSurfaceSize(surface);
    return gdk_pixbuf_get_from_surface(surface, 0, 0, size.width(), size.height());
}

}