Method LoadImageArchiveImages

src/openrct2/object/ImageTable.cpp:226–286

    }

    std::vector<std::unique_ptr<ImageTable::RequiredImage>> ImageTable::LoadImageArchiveImages(
        IReadObjectContext* context, const std::string& path, const std::vector<int32_t>& range)
    {
        std::vector<std::unique_ptr<RequiredImage>> result;
        auto gxRaw = context->GetData(path);
        std::optional<Gx> gxData = GfxLoadGx(gxRaw);
        if (gxData.has_value())
        {
            // Fix entry data offsets
            for (uint32_t i = 0; i < gxData->header.numEntries; i++)
            {
                if (gxData->elements[i].offset == nullptr)
                {
                    gxData->elements[i].offset = gxData->data.get();
                }
                else
                {
                    gxData->elements[i].offset += reinterpret_cast<uintptr_t>(gxData->data.get());
                }
            }

            if (!range.empty())
            {
                size_t placeHoldersAdded = 0;
                for (auto i : range)
                {
                    if (i >= 0 && (i < static_cast<int32_t>(gxData->header.numEntries)))
                    {
                        result.push_back(std::make_unique<RequiredImage>(gxData->elements[i]));
                    }
                    else
                    {
                        result.push_back(std::make_unique<RequiredImage>());
                        placeHoldersAdded++;
                    }
                }

                // Log place holder information
                if (placeHoldersAdded > 0)
                {
                    std::string msg = "Adding " + std::to_string(placeHoldersAdded) + " placeholders";
                    context->LogWarning(ObjectError::invalidProperty, msg.c_str());
                }
            }
            else
            {
                for (int i = 0; i < static_cast<int32_t>(gxData->header.numEntries); i++)
                    result.push_back(std::make_unique<RequiredImage>(gxData->elements[i]));
            }
        }
        else
        {
            auto msg = String::stdFormat("Unable to load Gx '%s'", path.c_str());
            context->LogWarning(ObjectError::badImageTable, msg.c_str());
            for (size_t i = 0; i < range.size(); i++)
            {
                result.push_back(std::make_unique<RequiredImage>());
            }