libreoffice/opencl/source/OpenCLZone.cxx

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

#include <opencl/openclwrapper.hxx>
#include <opencl/OpenCLZone.hxx>
#include <opencl_device.hxx>

#include <memory>

#include <officecfg/Office/Common.hxx>
#include <com/sun/star/util/XFlushable.hpp>
#include <com/sun/star/configuration/theDefaultProvider.hpp>

// FIXME: templatize me vs. OpenGLZone.

std::sig_atomic_t volatile OpenCLZone::gnEnterCount = 0;
bool volatile OpenCLZone::gbInInitialTest = false;

/**
 * Called from a signal handler if we get
 * a crash or hang in some CL code.
 */
void OpenCLZone::hardDisable()
{
    // protect ourselves from double calling etc.
    static bool bDisabled = false;
    if (!bDisabled)
    {
        bDisabled = true;

        std::shared_ptr<comphelper::ConfigurationChanges> xChanges(comphelper::ConfigurationChanges::create());
        officecfg::Office::Common::Misc::UseOpenCL::set(false, xChanges);
        xChanges->commit();

        // Force synchronous config write
        auto xConfProvider = css::configuration::theDefaultProvider::get(comphelper::getProcessComponentContext());
        css::uno::Reference<css::util::XFlushable> xFlushable(xConfProvider, css::uno::UNO_QUERY_THROW);
        xFlushable->flush();

        releaseOpenCLEnv(&openclwrapper::gpuEnv);
    }
}

void OpenCLZone::enterInitialTest()
{
    gbInInitialTest = true;
}

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