/*-------------------------------------------------------------------------
 * 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_KHR_surfaceless_context extension tests
 *//*--------------------------------------------------------------------*/

#include "teglSurfacelessContextTests.hpp"
#include "teglSimpleConfigCase.hpp"

#include "egluStrUtil.hpp"
#include "egluUtil.hpp"
#include "egluUnique.hpp"

#include "tcuTestLog.hpp"

#include "eglwLibrary.hpp"
#include "eglwEnums.hpp"

#include "deSTLUtil.hpp"

#include <string>
#include <vector>
#include <algorithm>

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

using namespace eglw;

namespace deqp
{
namespace egl
{
namespace
{

class SurfacelessContextCase : public SimpleConfigCase
{
public:
    SurfacelessContextCase(EglTestContext &eglTestCtx, const char *name, const char *description,
                           const eglu::FilterList &filters);
    ~SurfacelessContextCase(void);

    void executeForConfig(EGLDisplay display, EGLConfig config);
};

SurfacelessContextCase::SurfacelessContextCase(EglTestContext &eglTestCtx, const char *name, const char *description,
                                               const eglu::FilterList &filters)
    : SimpleConfigCase(eglTestCtx, name, description, filters)
{
}

SurfacelessContextCase::~SurfacelessContextCase(void)
{
}

void SurfacelessContextCase::executeForConfig(EGLDisplay display, EGLConfig config)
{
    const Library &egl   = m_eglTestCtx.getLibrary();
    TestLog &log         = m_testCtx.getLog();
    const EGLint id      = eglu::getConfigAttribInt(egl, display, config, EGL_CONFIG_ID);
    const EGLint apiBits = eglu::getConfigAttribInt(egl, display, config, EGL_RENDERABLE_TYPE);

    static const EGLint es1Attrs[] = {EGL_CONTEXT_CLIENT_VERSION, 1, EGL_NONE};
    static const EGLint es2Attrs[] = {EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE};
    static const EGLint es3Attrs[] = {EGL_CONTEXT_MAJOR_VERSION_KHR, 3, EGL_NONE};

    static const struct
    {
        const char *name;
        EGLenum api;
        EGLint apiBit;
        const EGLint *ctxAttrs;
    } apis[] = {{"OpenGL", EGL_OPENGL_API, EGL_OPENGL_BIT, DE_NULL},
                {"OpenGL ES 1", EGL_OPENGL_ES_API, EGL_OPENGL_ES_BIT, es1Attrs},
                {"OpenGL ES 2", EGL_OPENGL_ES_API, EGL_OPENGL_ES2_BIT, es2Attrs},
                {"OpenGL ES 3", EGL_OPENGL_ES_API, EGL_OPENGL_ES3_BIT_KHR, es3Attrs},
                {"OpenVG", EGL_OPENVG_API, EGL_OPENVG_BIT, DE_NULL}};

    if (!eglu::hasExtension(egl, display, "EGL_KHR_surfaceless_context"))
        TCU_THROW(NotSupportedError, "EGL_KHR_surfaceless_context not supported");

    for (int apiNdx = 0; apiNdx < (int)DE_LENGTH_OF_ARRAY(apis); apiNdx++)
    {
        if ((apiBits & apis[apiNdx].apiBit) == 0)
            continue; // Not supported API

        log << TestLog::Message << "Creating " << apis[apiNdx].name << " context with config ID " << id
            << TestLog::EndMessage;

        EGLU_CHECK_CALL(egl, bindAPI(apis[apiNdx].api));

        eglu::UniqueContext context(egl, display,
                                    egl.createContext(display, config, EGL_NO_CONTEXT, apis[apiNdx].ctxAttrs));
        EGLU_CHECK_MSG(egl, "eglCreateContext()");

        if (!egl.makeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, *context))
        {
            const EGLenum err = egl.getError();

            if (err == EGL_BAD_MATCH)
            {
                log << TestLog::Message
                    << "  eglMakeCurrent() failed with EGL_BAD_MATCH. Context doesn't support surfaceless mode."
                    << TestLog::EndMessage;
                continue;
            }
            else
            {
                log << TestLog::Message << "  Fail, context: " << tcu::toHex(*context)
                    << ", error: " << eglu::getErrorName(err) << TestLog::EndMessage;
                m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Failed to make context current");
                continue;
            }
        }

        EGLU_CHECK_CALL(egl, makeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT));

        log << TestLog::Message << "  Pass" << TestLog::EndMessage;
    }
}

} // namespace

SurfacelessContextTests::SurfacelessContextTests(EglTestContext &eglTestCtx)
    : TestCaseGroup(eglTestCtx, "surfaceless_context", "EGL_KHR_surfaceless_context extension tests")
{
}

void SurfacelessContextTests::init(void)
{
    vector<NamedFilterList> filterLists;
    getDefaultFilterLists(filterLists, eglu::FilterList());

    for (vector<NamedFilterList>::const_iterator i = filterLists.begin(); i != filterLists.end(); i++)
        addChild(new SurfacelessContextCase(m_eglTestCtx, i->getName(), i->getDescription(), *i));
}

} // namespace egl
} // namespace deqp