/*-------------------------------------------------------------------------
 * drawElements Quality Program EGL Module
 * ---------------------------------------
 *
 * Copyright 2014 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 *//*!
 * \file
 * \brief EGL Implementation Information Tests
 *//*--------------------------------------------------------------------*/

#include "teglInfoTests.hpp"
#include "teglConfigList.hpp"
#include "tcuTestLog.hpp"
#include "deStringUtil.hpp"
#include "egluUtil.hpp"
#include "eglwLibrary.hpp"
#include "eglwEnums.hpp"

#include <vector>
#include <string>
#include <sstream>

namespace deqp
{
namespace egl
{

using std::string;
using std::vector;
using tcu::TestLog;
using namespace eglw;

static int toInt(std::string str)
{
    std::istringstream strStream(str);

    int out;
    strStream >> out;
    return out;
}

class InfoCase : public TestCase
{
public:
    InfoCase(EglTestContext &eglTestCtx, const char *name, const char *description)
        : TestCase(eglTestCtx, name, description)
        , m_display(EGL_NO_DISPLAY)
        , m_version(0, 0)
    {
    }

    void init(void)
    {
        DE_ASSERT(m_display == EGL_NO_DISPLAY);
        m_display = eglu::getAndInitDisplay(m_eglTestCtx.getNativeDisplay(), &m_version);
    }

    void deinit(void)
    {
        m_eglTestCtx.getLibrary().terminate(m_display);
        m_display = EGL_NO_DISPLAY;
    }

protected:
    EGLDisplay m_display;
    eglu::Version m_version;
};

class QueryStringCase : public InfoCase
{
public:
    QueryStringCase(EglTestContext &eglTestCtx, const char *name, const char *description, EGLint query)
        : InfoCase(eglTestCtx, name, description)
        , m_query(query)
    {
    }

    void validateString(const std::string &result)
    {
        tcu::TestLog &log               = m_testCtx.getLog();
        std::vector<std::string> tokens = de::splitString(result, ' ');

        if (m_query == EGL_VERSION)
        {
            const int dispMajor = m_version.getMajor();
            const int dispMinor = m_version.getMinor();

            const std::vector<std::string> versionTokens = de::splitString(tokens[0], '.');

            if (versionTokens.size() < 2)
            {
                log << TestLog::Message
                    << "  Fail, first part of the string must be in the format <major_version.minor_version>"
                    << TestLog::EndMessage;
                m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Invalid version string");
            }
            else
            {
                const int stringMajor = toInt(versionTokens[0]);
                const int stringMinor = toInt(versionTokens[1]);

                if (stringMajor != dispMajor || stringMinor != dispMinor)
                {
                    log << TestLog::Message << "  Fail, version numer (" << stringMajor << "." << stringMinor
                        << ") does not match the one reported by eglInitialize (" << dispMajor << "." << dispMinor
                        << ")" << TestLog::EndMessage;
                    m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Version number mismatch");
                }
            }
        }
    }

    IterateResult iterate(void)
    {
        const Library &egl = m_eglTestCtx.getLibrary();
        const char *result = egl.queryString(m_display, m_query);
        EGLU_CHECK_MSG(egl, "eglQueryString() failed");

        m_testCtx.getLog() << tcu::TestLog::Message << result << tcu::TestLog::EndMessage;
        m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");

        validateString(result);

        return STOP;
    }

private:
    EGLint m_query;
};

class QueryExtensionsCase : public InfoCase
{
public:
    QueryExtensionsCase(EglTestContext &eglTestCtx) : InfoCase(eglTestCtx, "extensions", "Supported Extensions")
    {
    }

    IterateResult iterate(void)
    {
        const Library &egl        = m_eglTestCtx.getLibrary();
        vector<string> extensions = eglu::getDisplayExtensions(egl, m_display);

        for (vector<string>::const_iterator i = extensions.begin(); i != extensions.end(); i++)
            m_testCtx.getLog() << tcu::TestLog::Message << *i << tcu::TestLog::EndMessage;

        m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");

        return STOP;
    }
};

InfoTests::InfoTests(EglTestContext &eglTestCtx) : TestCaseGroup(eglTestCtx, "info", "Platform Information")
{
}

InfoTests::~InfoTests(void)
{
}

void InfoTests::init(void)
{
    addChild(new QueryStringCase(m_eglTestCtx, "version", "EGL Version", EGL_VERSION));
    addChild(new QueryStringCase(m_eglTestCtx, "vendor", "EGL Vendor", EGL_VENDOR));
    addChild(new QueryStringCase(m_eglTestCtx, "client_apis", "Supported client APIs", EGL_CLIENT_APIS));
    addChild(new QueryExtensionsCase(m_eglTestCtx));
    addChild(new ConfigList(m_eglTestCtx));
}

} // namespace egl
} // namespace deqp