axmol/tests/cpp-tests/Classes/SpriteFrameCacheTest/SpriteFrameCacheTest.cpp

/****************************************************************************
 Copyright (c) 2012 cocos2d-x.org
 Copyright (c) 2013-2016 Chukong Technologies Inc.
 Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
 Copyright (c) 2020 C4games Ltd.
 Copyright (c) 2021-2022 Bytedance Inc.

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#include "SpriteFrameCacheTest.h"

#include <cassert>

#include "CCNinePatchImageParser.h"

USING_NS_CC;

SpriteFrameCacheTests::SpriteFrameCacheTests()
{
    ADD_TEST_CASE(SpriteFrameCachePixelFormatTest);
    ADD_TEST_CASE(SpriteFrameCacheLoadMultipleTimes);
    ADD_TEST_CASE(SpriteFrameCacheFullCheck);
    ADD_TEST_CASE(SpriteFrameCacheJsonAtlasTest);
}

SpriteFrameCachePixelFormatTest::SpriteFrameCachePixelFormatTest()
{
    const Size screenSize = Director::getInstance()->getWinSize();

    infoLabel = Label::create();
    infoLabel->setAnchorPoint(Point(0.5f, 1.0f));
    infoLabel->setAlignment(cocos2d::TextHAlignment::CENTER);
    infoLabel->setPosition(screenSize.width * 0.5f, screenSize.height * 0.7f);
    addChild(infoLabel);

    // load atlas definition with specified PixelFormat and check that it matches to expected format
    loadSpriteFrames("Images/sprite_frames_test/test_A8.plist", backend::PixelFormat::A8);
    loadSpriteFrames("Images/sprite_frames_test/test_RGBA8888.plist", backend::PixelFormat::RGBA8);
    loadSpriteFrames("Images/sprite_frames_test/test_AI88.plist", backend::PixelFormat::LA8);
    loadSpriteFrames("Images/sprite_frames_test/test_RGB565.plist", backend::PixelFormat::RGB565);
    loadSpriteFrames("Images/sprite_frames_test/test_RGB888.plist", backend::PixelFormat::RGB8);
    loadSpriteFrames("Images/sprite_frames_test/test_RGBA4444.plist", backend::PixelFormat::RGBA4);
    loadSpriteFrames("Images/sprite_frames_test/test_RGBA5551.plist", backend::PixelFormat::RGB5A1);

    if (Configuration::getInstance()->supportsPVRTC())
    {
        loadSpriteFrames("Images/sprite_frames_test/test_PVRTC2.plist", backend::PixelFormat::PVRTC2A);
        loadSpriteFrames("Images/sprite_frames_test/test_PVRTC4.plist", backend::PixelFormat::PVRTC4A);
        loadSpriteFrames("Images/sprite_frames_test/test_PVRTC2_NOALPHA.plist", backend::PixelFormat::PVRTC2);
    }

    // test loading atlases without PixelFormat specified
    Texture2D::setDefaultAlphaPixelFormat(backend::PixelFormat::RGB5A1);
    loadSpriteFrames("Images/sprite_frames_test/test_NoFormat.plist", backend::PixelFormat::RGB5A1);

    // restore default alpha pixel format
    Texture2D::setDefaultAlphaPixelFormat(backend::PixelFormat::RGBA8);
}

void SpriteFrameCachePixelFormatTest::loadSpriteFrames(std::string_view file,
                                                       cocos2d::backend::PixelFormat expectedFormat)
{
    SpriteFrameCache::getInstance()->addSpriteFramesWithFile(file);
    SpriteFrame* spriteFrame = SpriteFrameCache::getInstance()->getSpriteFrameByName("sprite_frames_test/grossini.png");
    Texture2D* texture       = spriteFrame->getTexture();
    const ssize_t bitsPerKB  = 8 * 1024;
    const double memorySize  = 1.0 * texture->getBitsPerPixelForFormat() * texture->getContentSizeInPixels().width *
                              texture->getContentSizeInPixels().height / bitsPerKB;
#ifndef CC_USE_METAL
    CC_ASSERT(texture->getPixelFormat() == expectedFormat);
#endif
    const std::string textureInfo = StringUtils::format("%s%s: %.2f KB\r\n", infoLabel->getString().data(),
                                                        texture->getStringForFormat(), memorySize);
    infoLabel->setString(textureInfo);

    SpriteFrameCache::getInstance()->removeSpriteFramesFromFile(file);
    Director::getInstance()->getTextureCache()->removeTexture(texture);
}

SpriteFrameCacheLoadMultipleTimes::SpriteFrameCacheLoadMultipleTimes()
{
    const Size screenSize = Director::getInstance()->getWinSize();

    // load atlas definition with specified PixelFormat and check that it matches to expected format
    loadSpriteFrames("Images/sprite_frames_test/test_RGBA8888.plist", backend::PixelFormat::RGBA8);
    loadSpriteFrames("Images/sprite_frames_test/test_RGBA8888.plist", backend::PixelFormat::RGBA8);
    loadSpriteFrames("Images/sprite_frames_test/test_RGBA8888.plist", backend::PixelFormat::RGBA8);
    loadSpriteFrames("Images/sprite_frames_test/test_RGBA8888.plist", backend::PixelFormat::RGBA8);
}

void SpriteFrameCacheLoadMultipleTimes::loadSpriteFrames(std::string_view file,
                                                         cocos2d::backend::PixelFormat expectedFormat)
{
    SpriteFrameCache::getInstance()->addSpriteFramesWithFile(file);
    SpriteFrame* spriteFrame = SpriteFrameCache::getInstance()->getSpriteFrameByName("sprite_frames_test/grossini.png");
    Texture2D* texture       = spriteFrame->getTexture();
    CC_ASSERT(texture->getPixelFormat() == expectedFormat);

    SpriteFrameCache::getInstance()->removeSpriteFrameByName("sprite_frames_test/grossini.png");
    Director::getInstance()->getTextureCache()->removeTexture(texture);
}

SpriteFrameCacheFullCheck::SpriteFrameCacheFullCheck()
{
    const Size screenSize = Director::getInstance()->getWinSize();
    // load atlas definition with specified PixelFormat and check that it matches to expected format
    loadSpriteFrames("Images/test_polygon.plist", backend::PixelFormat::RGBA8);
}

void SpriteFrameCacheFullCheck::loadSpriteFrames(std::string_view file, cocos2d::backend::PixelFormat expectedFormat)
{
    auto cache = SpriteFrameCache::getInstance();

    CCASSERT(cache->isSpriteFramesWithFileLoaded("plist which not exists") == false, "Plist not exists");

    cache->addSpriteFramesWithFile(file);
    CCASSERT(cache->isSpriteFramesWithFileLoaded(file) == true, "Plist should be full after loaded");

    cache->removeSpriteFrameByName("not_exists_grossinis_sister.png");
    CCASSERT(cache->isSpriteFramesWithFileLoaded(file) == true, "Plist should not be still full");

    cache->removeSpriteFrameByName("grossinis_sister1.png");
    CCASSERT(cache->isSpriteFramesWithFileLoaded(file) == false, "Plist should not be full after remove any sprite");

    cache->addSpriteFramesWithFile(file);
    CCASSERT(cache->isSpriteFramesWithFileLoaded(file) == true, "Plist should be full after reloaded");
}

class GenericJsonArraySpriteSheetLoader : public SpriteSheetLoader
{
public:
    static constexpr uint32_t FORMAT = SpriteSheetFormat::CUSTOM + 1;

    uint32_t getFormat() override { return FORMAT; }

    void load(std::string_view filePath, SpriteFrameCache& cache) override
    {
        CCASSERT(!filePath.empty(), "atlas filename should not be nullptr");

        const auto fullPath = FileUtils::getInstance()->fullPathForFilename(filePath);
        if (fullPath.empty())
        {
            // return if plist file doesn't exist
            CCLOG("GenericJsonArraySpriteSheetLoader: can not find %s", filePath.data());
            return;
        }

        const auto data = FileUtils::getInstance()->getStringFromFile(fullPath);

        rapidjson::Document jDoc;
        jDoc.Parse(data.c_str());

        std::string texturePath;

        auto&& metaItr = jDoc.FindMember("meta");
        if (metaItr != jDoc.MemberEnd())
        {
            texturePath = metaItr->value["image"].GetString();
        }

        if (!texturePath.empty())
        {
            // build texture path relative to plist file
            texturePath = FileUtils::getInstance()->fullPathFromRelativeFile(texturePath, filePath);
        }
        else
        {
            // build texture path by replacing file extension
            texturePath = filePath;

            // remove .xxx
            const auto startPos = texturePath.find_last_of('.');
            if (startPos != std::string::npos)
            {
                texturePath = texturePath.erase(startPos);
            }

            // append .png
            texturePath = texturePath.append(".png");

            CCLOG("GenericJsonArraySpriteSheetLoader::load: Trying to use file %s as texture", texturePath.c_str());
        }

        addSpriteFramesWithJson(jDoc, texturePath, filePath, cache);
    }

    void load(std::string_view filePath, Texture2D* texture, SpriteFrameCache& cache) override
    {
        const auto fullPath = FileUtils::getInstance()->fullPathForFilename(filePath);
        rapidjson::Document jDoc;
        const auto data = FileUtils::getInstance()->getStringFromFile(fullPath);
        jDoc.Parse(data.c_str());

        addSpriteFramesWithJson(jDoc, texture, filePath, cache);
    }

    void load(std::string_view filePath, std::string_view textureFileName, SpriteFrameCache& cache) override
    {
        CCASSERT(!textureFileName.empty(), "texture name should not be null");
        const auto fullPath = FileUtils::getInstance()->fullPathForFilename(filePath);
        rapidjson::Document jDoc;
        const auto data = FileUtils::getInstance()->getStringFromFile(fullPath);
        jDoc.Parse(data.c_str());
        addSpriteFramesWithJson(jDoc, textureFileName, filePath, cache);
    }

    void load(const Data& content, Texture2D* texture, SpriteFrameCache& cache) override
    {
        if (content.isNull())
        {
            return;
        }

        rapidjson::Document jDoc;
        const auto* text = (char*)content.getBytes();
        jDoc.Parse(text);
        addSpriteFramesWithJson(jDoc, texture, "by#addSpriteFramesWithFileContent()", cache);
    }

    void reload(std::string_view filePath, SpriteFrameCache& cache) override
    {
        const auto fullPath = FileUtils::getInstance()->fullPathForFilename(filePath);
        rapidjson::Document doc;
        const auto data = FileUtils::getInstance()->getStringFromFile(fullPath);
        doc.Parse(data.c_str());

        std::string texturePath;

        auto&& metaItr = doc.FindMember("meta");
        if (metaItr != doc.MemberEnd())
        {
            texturePath = metaItr->value["image"].GetString();
        }

        if (!texturePath.empty())
        {
            // build texture path relative to plist file
            texturePath = FileUtils::getInstance()->fullPathFromRelativeFile(texturePath, filePath);
        }
        else
        {
            // build texture path by replacing file extension
            texturePath = filePath;

            // remove .xxx
            const auto startPos = texturePath.find_last_of('.');
            if (startPos != std::string::npos)
            {
                texturePath = texturePath.erase(startPos);
            }

            // append .png
            texturePath = texturePath.append(".png");
        }

        Texture2D* texture = nullptr;
        if (Director::getInstance()->getTextureCache()->reloadTexture(texturePath))
        {
            texture = Director::getInstance()->getTextureCache()->getTextureForKey(texturePath);
        }

        if (texture)
        {
            reloadSpriteFramesWithDictionary(doc, texture, filePath, cache);
        }
        else
        {
            CCLOG("GenericJsonArraySpriteSheetLoader::reload: Couldn't load texture");
        }
    }

protected:
    void addSpriteFramesWithJson(const rapidjson::Document& doc,
                                 std::string_view texturePath,
                                 std::string_view atlasPath,
                                 SpriteFrameCache& cache)
    {
        std::string pixelFormatName;
        auto&& metaItr = doc.FindMember("meta");
        if (metaItr != doc.MemberEnd())
        {
            auto&& pixelFormatItr = metaItr->value.FindMember("format");
            if (pixelFormatItr != metaItr->value.MemberEnd())
            {
                pixelFormatName = pixelFormatItr->value.GetString();
            }
        }

        Texture2D* texture                                                        = nullptr;
        static std::unordered_map<std::string, backend::PixelFormat> pixelFormats = {
            {"RGBA8888", backend::PixelFormat::RGBA8},
            {"RGBA4444", backend::PixelFormat::RGBA4},
            {"RGB5A1", backend::PixelFormat::RGB5A1},
            {"RGBA5551", backend::PixelFormat::RGB5A1},
            {"RGB565", backend::PixelFormat::RGB565},
            {"A8", backend::PixelFormat::A8},
            {"ALPHA", backend::PixelFormat::A8},
            {"I8", backend::PixelFormat::L8},
            {"AI88", backend::PixelFormat::LA8},
            {"ALPHA_INTENSITY", backend::PixelFormat::LA8},
            //{"BGRA8888", backend::PixelFormat::BGRA8888}, no Image conversion RGBA -> BGRA
            {"RGB888", backend::PixelFormat::RGB8}};

        const auto pixelFormatIt = pixelFormats.find(pixelFormatName);
        if (pixelFormatIt != pixelFormats.end())
        {
            const backend::PixelFormat pixelFormat        = (*pixelFormatIt).second;
            texture = Director::getInstance()->getTextureCache()->addImage(texturePath, pixelFormat);
        }
        else
        {
            texture = Director::getInstance()->getTextureCache()->addImage(texturePath);
        }

        if (texture)
        {
            addSpriteFramesWithJson(doc, texture, atlasPath, cache);
        }
        else
        {
            CCLOG("GenericJsonArraySpriteSheetLoader::addSpriteFramesWithJson: Couldn't load texture");
        }
    }

    void addSpriteFramesWithJson(const rapidjson::Document& doc,
                                 Texture2D* texture,
                                 std::string_view atlasPath,
                                 SpriteFrameCache& cache)
    {
        auto&& framesItr = doc.FindMember("frames");
        if (framesItr == doc.MemberEnd())
            return;

        const auto spriteSheet = std::make_shared<SpriteSheet>();
        spriteSheet->format    = getFormat();
        spriteSheet->path      = atlasPath;

        const auto textureFileName = Director::getInstance()->getTextureCache()->getTextureFilePath(texture);
        Image* image               = nullptr;
        NinePatchImageParser parser;

        for (auto&& frameItr : framesItr->value.GetArray())
        {
            if (!frameItr.IsObject())
            {
                continue;
            }

            const auto spriteFrameName = frameItr["filename"].GetString();
            auto* spriteFrame          = cache.findFrame(spriteFrameName);
            if (spriteFrame)
            {
                continue;
            }

            const auto frameX      = frameItr["frame"]["x"].GetFloat();
            const auto frameY      = frameItr["frame"]["y"].GetFloat();
            const auto frameW      = frameItr["frame"]["w"].GetFloat();
            const auto frameH      = frameItr["frame"]["h"].GetFloat();
            const auto textureRect = Rect(frameX, frameY, frameW, frameH);

            const auto originalWidth  = frameItr["sourceSize"]["w"].GetInt();
            const auto originalHeight = frameItr["sourceSize"]["w"].GetInt();
            const auto originalSize   = Size(originalWidth, originalHeight);

            const auto trimmedWidth  = frameItr["spriteSourceSize"]["w"].GetInt();
            const auto trimmedHeight = frameItr["spriteSourceSize"]["h"].GetInt();
            const auto trimmedSize   = Size(trimmedWidth, trimmedHeight);

            const auto textureRotated = frameItr["rotated"].GetBool();

            // create frame
            spriteFrame = SpriteFrame::createWithTexture(
                texture, Rect(textureRect.origin.x, textureRect.origin.y, trimmedSize.width, trimmedSize.height),
                textureRotated, Vec2(), originalSize);

            const auto flag = NinePatchImageParser::isNinePatchImage(spriteFrameName);
            if (flag)
            {
                if (image == nullptr)
                {
                    image = new Image();
                    image->initWithImageFile(textureFileName);
                }
                parser.setSpriteFrameInfo(image, spriteFrame->getRectInPixels(), spriteFrame->isRotated());
                cache.addSpriteFrameCapInset(spriteFrame, parser.parseCapInset(), texture);
            }

            // add sprite frame
            cache.insertFrame(spriteSheet, spriteFrameName, spriteFrame);
        }

        spriteSheet->full = true;

        CC_SAFE_DELETE(image);
    }

    void reloadSpriteFramesWithDictionary(const rapidjson::Document& doc,
                                          Texture2D* texture,
                                          std::string_view atlasPath,
                                          SpriteFrameCache& cache)
    {
        auto&& framesItr = doc.FindMember("frames");
        if (framesItr == doc.MemberEnd())
            return;

        const auto spriteSheet = std::make_shared<SpriteSheet>();
        spriteSheet->format    = getFormat();
        spriteSheet->path      = atlasPath;

        for (auto&& frameItr : framesItr->value.GetArray())
        {
            if (!frameItr.IsObject())
            {
                continue;
            }

            const auto spriteFrameName = frameItr["filename"].GetString();
            auto* spriteFrame          = cache.findFrame(spriteFrameName);
            if (spriteFrame)
            {
                continue;
            }

            const auto frameX      = frameItr["frame"]["x"].GetFloat();
            const auto frameY      = frameItr["frame"]["y"].GetFloat();
            const auto frameW      = frameItr["frame"]["w"].GetFloat();
            const auto frameH      = frameItr["frame"]["h"].GetFloat();
            const auto textureRect = Rect(frameX, frameY, frameW, frameH);

            const auto originalWidth  = frameItr["sourceSize"]["w"].GetInt();
            const auto originalHeight = frameItr["sourceSize"]["w"].GetInt();
            const auto originalSize   = Size(originalWidth, originalHeight);

            const auto trimmedWidth  = frameItr["spriteSourceSize"]["w"].GetInt();
            const auto trimmedHeight = frameItr["spriteSourceSize"]["h"].GetInt();
            const auto trimmedSize   = Size(trimmedWidth, trimmedHeight);

            const auto textureRotated = frameItr["rotated"].GetBool();

            // create frame
            spriteFrame = SpriteFrame::createWithTexture(
                texture, Rect(textureRect.origin.x, textureRect.origin.y, trimmedSize.width, trimmedSize.height),
                textureRotated, Vec2(), originalSize);

            // add sprite frame
            cache.insertFrame(spriteSheet, spriteFrameName, spriteFrame);
        }
    }
};

SpriteFrameCacheJsonAtlasTest::SpriteFrameCacheJsonAtlasTest()
{
    auto* cache = SpriteFrameCache::getInstance();
    cache->registerSpriteSheetLoader(std::make_unique<GenericJsonArraySpriteSheetLoader>());

    const Size screenSize = Director::getInstance()->getWinSize();

    infoLabel = Label::create();
    infoLabel->setAnchorPoint(Point(0.5f, 1.0f));
    infoLabel->setAlignment(cocos2d::TextHAlignment::CENTER);
    infoLabel->setPosition(screenSize.width * 0.5f, screenSize.height * 0.7f);
    addChild(infoLabel);

    loadSpriteFrames("Images/sprite_frames_test/test_RGB8888_generic.json"sv, backend::PixelFormat::RGBA8);
}

SpriteFrameCacheJsonAtlasTest::~SpriteFrameCacheJsonAtlasTest()
{
    auto* cache = SpriteFrameCache::getInstance();
    cache->deregisterSpriteSheetLoader(GenericJsonArraySpriteSheetLoader::FORMAT);
}

void SpriteFrameCacheJsonAtlasTest::loadSpriteFrames(std::string_view file,
                                                     cocos2d::backend::PixelFormat expectedFormat)
{
    SpriteFrameCache::getInstance()->addSpriteFramesWithFile(file, GenericJsonArraySpriteSheetLoader::FORMAT);
    SpriteFrame* spriteFrame =
        SpriteFrameCache::getInstance()->getSpriteFrameByName("sprite_frames_test/grossini.png"sv);
    Texture2D* texture      = spriteFrame->getTexture();
    const ssize_t bitsPerKB = 8 * 1024;
    const double memorySize = 1.0 * texture->getBitsPerPixelForFormat() * texture->getContentSizeInPixels().width *
                              texture->getContentSizeInPixels().height / bitsPerKB;
#ifndef CC_USE_METAL
    CC_ASSERT(texture->getPixelFormat() == expectedFormat);
#endif
    const std::string textureInfo = StringUtils::format("%s%s: %.2f KB\r\n", infoLabel->getString().data(),
                                                        texture->getStringForFormat(), memorySize);
    infoLabel->setString(textureInfo);

    SpriteFrameCache::getInstance()->removeSpriteFramesFromFile(file);
    Director::getInstance()->getTextureCache()->removeTexture(texture);
}