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/*
* Copyright (C) 2022 Metrological Group B.V.
* Copyright (C) 2022 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. 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 INC. 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 "GBMDevice.h"
#if USE(GBM)
#include <fcntl.h>
#include <gbm.h>
#include <mutex>
#include <unistd.h>
#include <wtf/SafeStrerror.h>
#include <wtf/StdLibExtras.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
GBMDevice& GBMDevice::singleton()
{
static std::unique_ptr<GBMDevice> s_device;
static std::once_flag s_onceFlag;
std::call_once(s_onceFlag,
[] {
s_device = makeUnique<GBMDevice>();
});
return *s_device;
}
GBMDevice::~GBMDevice()
{
if (m_device.has_value() && m_device.value())
gbm_device_destroy(m_device.value());
}
void GBMDevice::initialize(const String& deviceFile)
{
RELEASE_ASSERT(!m_device.has_value());
if (!deviceFile.isEmpty()) {
m_fd = UnixFileDescriptor { open(deviceFile.utf8().data(), O_RDWR | O_CLOEXEC), UnixFileDescriptor::Adopt };
if (m_fd) {
m_device = gbm_create_device(m_fd.value());
if (m_device.value())
return;
WTFLogAlways("Failed to create GBM device for render device: %s: %s", deviceFile.utf8().data(), safeStrerror(errno).data());
m_fd = { };
} else
WTFLogAlways("Failed to open DRM render device %s: %s", deviceFile.utf8().data(), safeStrerror(errno).data());
}
m_device = nullptr;
}
} // namespace WebCore
#endif // USE(GBM)
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