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/*
* Copyright (C) 2016 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 COMPUTER, 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 COMPUTER, 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 "AcceleratedBackingStore.h"
#include "HardwareAccelerationManager.h"
#include "WebPageProxy.h"
#include <WebCore/PlatformDisplay.h>
#include <gtk/gtk.h>
#include <wtf/TZoneMallocInlines.h>
#include <wtf/glib/GUniquePtr.h>
#if PLATFORM(GTK)
#include "AcceleratedBackingStoreDMABuf.h"
#endif
namespace WebKit {
using namespace WebCore;
#if PLATFORM(GTK)
static bool gtkCanUseHardwareAcceleration()
{
static bool canUseHardwareAcceleration;
static std::once_flag onceFlag;
std::call_once(onceFlag, [] {
GUniqueOutPtr<GError> error;
#if USE(GTK4)
canUseHardwareAcceleration = gdk_display_prepare_gl(gdk_display_get_default(), &error.outPtr());
#else
auto* window = gtk_window_new(GTK_WINDOW_POPUP);
gtk_widget_realize(window);
auto context = adoptGRef(gdk_window_create_gl_context(gtk_widget_get_window(window), &error.outPtr()));
canUseHardwareAcceleration = !!context;
gtk_widget_destroy(window);
#endif
if (!canUseHardwareAcceleration)
g_warning("Disabled hardware acceleration because GTK failed to initialize GL: %s.", error->message);
});
return canUseHardwareAcceleration;
}
#endif
WTF_MAKE_TZONE_ALLOCATED_IMPL(AcceleratedBackingStore);
bool AcceleratedBackingStore::checkRequirements()
{
#if PLATFORM(GTK)
if (AcceleratedBackingStoreDMABuf::checkRequirements())
return gtkCanUseHardwareAcceleration();
#endif
return false;
}
RefPtr<AcceleratedBackingStore> AcceleratedBackingStore::create(WebPageProxy& webPage)
{
if (!HardwareAccelerationManager::singleton().canUseHardwareAcceleration())
return nullptr;
#if PLATFORM(GTK)
if (AcceleratedBackingStoreDMABuf::checkRequirements())
return AcceleratedBackingStoreDMABuf::create(webPage);
#endif
RELEASE_ASSERT_NOT_REACHED();
return nullptr;
}
AcceleratedBackingStore::AcceleratedBackingStore(WebPageProxy& webPage)
: m_webPage(webPage)
{
}
} // namespace WebKit
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