/*-------------------------------------------------------------------------
 * drawElements Internal Test 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 Image IO tests.
 *//*--------------------------------------------------------------------*/

#include "ditImageIOTests.hpp"
#include "tcuResource.hpp"
#include "tcuImageIO.hpp"
#include "tcuTexture.hpp"
#include "tcuTestLog.hpp"
#include "tcuFormatUtil.hpp"
#include "deUniquePtr.hpp"
#include "deString.h"

namespace dit
{

using tcu::TestLog;

// \todo [2013-05-28 pyry] Image output cases!

class ImageReadCase : public tcu::TestCase
{
public:
    ImageReadCase(tcu::TestContext &testCtx, const char *name, const char *filename, uint32_t expectedHash)
        : TestCase(testCtx, name, filename)
        , m_filename(filename)
        , m_expectedHash(expectedHash)
    {
    }

    IterateResult iterate(void)
    {
        m_testCtx.getLog() << TestLog::Message << "Loading image from file '" << m_filename << "'"
                           << TestLog::EndMessage;

        tcu::TextureLevel texture;
        tcu::ImageIO::loadImage(texture, m_testCtx.getArchive(), m_filename.c_str());

        m_testCtx.getLog() << TestLog::Message << "Loaded " << texture.getWidth() << "x" << texture.getHeight() << "x"
                           << texture.getDepth() << " image with format " << texture.getFormat() << TestLog::EndMessage;

        // Check that layout is as expected
        TCU_CHECK(texture.getAccess().getRowPitch() == texture.getWidth() * texture.getFormat().getPixelSize());
        TCU_CHECK(texture.getAccess().getSlicePitch() ==
                  texture.getAccess().getRowPitch() * texture.getAccess().getHeight());

        const int imageSize = texture.getAccess().getSlicePitch() * texture.getDepth();
        const uint32_t hash = deMemoryHash(texture.getAccess().getDataPtr(), imageSize);

        if (hash != m_expectedHash)
        {
            m_testCtx.getLog() << TestLog::Message << "ERROR: expected hash " << tcu::toHex(m_expectedHash) << ", got "
                               << tcu::toHex(hash) << TestLog::EndMessage;
            m_testCtx.getLog() << TestLog::Image("Image", "Loaded image", texture.getAccess());
            m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Hash check failed");
        }
        else
            m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");

        return STOP;
    }

private:
    const std::string m_filename;
    const uint32_t m_expectedHash;
};

class ImageReadTests : public tcu::TestCaseGroup
{
public:
    ImageReadTests(tcu::TestContext &testCtx) : TestCaseGroup(testCtx, "read", "Image read tests")
    {
    }

    void init(void)
    {
        addChild(new ImageReadCase(m_testCtx, "rgb24_256x256", "internal/data/imageio/rgb24_256x256.png", 0x6efad777));
        addChild(new ImageReadCase(m_testCtx, "rgb24_209x181", "internal/data/imageio/rgb24_209x181.png", 0xfd6ea668));
        addChild(
            new ImageReadCase(m_testCtx, "rgba32_256x256", "internal/data/imageio/rgba32_256x256.png", 0xcf4883da));
        addChild(
            new ImageReadCase(m_testCtx, "rgba32_207x219", "internal/data/imageio/rgba32_207x219.png", 0x404ba06b));
    }
};

ImageIOTests::ImageIOTests(tcu::TestContext &testCtx) : TestCaseGroup(testCtx, "image_io", "Image read and write tests")
{
}

ImageIOTests::~ImageIOTests(void)
{
}

void ImageIOTests::init(void)
{
    addChild(new ImageReadTests(m_testCtx));
}

} // namespace dit