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/*
* Copyright (C) 2015 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 AND ITS CONTRIBUTORS "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 OR ITS 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 "PlatformDisplay.h"
#include <cstdlib>
#include <mutex>
#include <wtf/NeverDestroyed.h>
#if PLATFORM(X11)
#include "PlatformDisplayX11.h"
#endif
#if PLATFORM(WAYLAND)
#include "PlatformDisplayWayland.h"
#endif
#if PLATFORM(WIN)
#include "PlatformDisplayWin.h"
#endif
#if PLATFORM(GTK)
#include <gdk/gdk.h>
#endif
#if PLATFORM(GTK) && PLATFORM(X11)
#include <gdk/gdkx.h>
#endif
#if PLATFORM(GTK) && PLATFORM(WAYLAND) && !defined(GTK_API_VERSION_2)
#include <gdk/gdkwayland.h>
#endif
#if PLATFORM(EFL) && defined(HAVE_ECORE_X)
#include <Ecore_X.h>
#endif
#if USE(EGL)
#include <EGL/egl.h>
#endif
namespace WebCore {
std::unique_ptr<PlatformDisplay> PlatformDisplay::createPlatformDisplay()
{
#if PLATFORM(GTK)
#if defined(GTK_API_VERSION_2)
return std::make_unique<PlatformDisplayX11>(GDK_DISPLAY_XDISPLAY(gdk_display_get_default()));
#else
GdkDisplay* display = gdk_display_manager_get_default_display(gdk_display_manager_get());
#if PLATFORM(X11)
if (GDK_IS_X11_DISPLAY(display))
return std::make_unique<PlatformDisplayX11>(GDK_DISPLAY_XDISPLAY(display));
#endif
#if PLATFORM(WAYLAND)
if (GDK_IS_WAYLAND_DISPLAY(display))
return PlatformDisplayWayland::create();
#endif
#endif
#elif PLATFORM(EFL) && defined(HAVE_ECORE_X)
return std::make_unique<PlatformDisplayX11>(static_cast<Display*>(ecore_x_display_get()));
#elif PLATFORM(WIN)
return std::make_unique<PlatformDisplayWin>();
#endif
#if PLATFORM(X11)
return std::make_unique<PlatformDisplayX11>();
#endif
ASSERT_NOT_REACHED();
return nullptr;
}
PlatformDisplay& PlatformDisplay::sharedDisplay()
{
static std::once_flag onceFlag;
static std::unique_ptr<PlatformDisplay> display;
std::call_once(onceFlag, []{
display = createPlatformDisplay();
});
return *display;
}
PlatformDisplay::PlatformDisplay()
#if USE(EGL)
: m_eglDisplay(EGL_NO_DISPLAY)
#endif
{
}
PlatformDisplay::~PlatformDisplay()
{
#if USE(EGL)
ASSERT(m_eglDisplay == EGL_NO_DISPLAY);
#endif
}
#if USE(EGL)
EGLDisplay PlatformDisplay::eglDisplay() const
{
if (!m_eglDisplayInitialized)
const_cast<PlatformDisplay*>(this)->initializeEGLDisplay();
return m_eglDisplay;
}
void PlatformDisplay::initializeEGLDisplay()
{
m_eglDisplayInitialized = true;
if (m_eglDisplay == EGL_NO_DISPLAY) {
// EGL is optionally soft linked on Windows.
#if PLATFORM(WIN)
auto eglGetDisplay = eglGetDisplayPtr();
if (!eglGetDisplay)
return;
#endif
m_eglDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (m_eglDisplay == EGL_NO_DISPLAY)
return;
}
if (eglInitialize(m_eglDisplay, 0, 0) == EGL_FALSE) {
LOG_ERROR("EGLDisplay Initialization failed.");
terminateEGLDisplay();
return;
}
#if USE(OPENGL_ES_2)
static const EGLenum eglAPIVersion = EGL_OPENGL_ES_API;
#else
static const EGLenum eglAPIVersion = EGL_OPENGL_API;
#endif
if (eglBindAPI(eglAPIVersion) == EGL_FALSE) {
LOG_ERROR("Failed to set EGL API(%d).", eglGetError());
terminateEGLDisplay();
return;
}
// EGL registers atexit handlers to cleanup its global display list.
// Since the global PlatformDisplay instance is created before,
// when the PlatformDisplay destructor is called, EGL has already removed the
// display from the list, causing eglTerminate() to crash. So, here we register
// our own atexit handler, after EGL has been initialized and after the global
// instance has been created to ensure we call eglTerminate() before the other
// EGL atexit handlers and the PlatformDisplay destructor.
// See https://bugs.webkit.org/show_bug.cgi?id=157973.
std::atexit([] { PlatformDisplay::sharedDisplay().terminateEGLDisplay(); });
}
void PlatformDisplay::terminateEGLDisplay()
{
ASSERT(m_eglDisplayInitialized);
if (m_eglDisplay == EGL_NO_DISPLAY)
return;
eglTerminate(m_eglDisplay);
m_eglDisplay = EGL_NO_DISPLAY;
}
#endif // USE(EGL)
} // namespace WebCore
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