Method Open

src/openrct2/command_line/sprite/SpriteFile.cpp:17–55

namespace OpenRCT2::CommandLine::Sprite
{
    std::optional<SpriteFile> SpriteFile::Open(const utf8* path)
    {
        try
        {
            FileStream stream(path, FileMode::open);

            SpriteFile spriteFile;
            stream.Read(&spriteFile.Header, sizeof(G1Header));

            if (spriteFile.Header.numEntries > 0)
            {
                spriteFile.Entries.reserve(spriteFile.Header.numEntries);

                for (uint32_t i = 0; i < spriteFile.Header.numEntries; ++i)
                {
                    StoredG1Element entry32bit{};
                    stream.Read(&entry32bit, sizeof(entry32bit));
                    G1Element entry{};

                    entry.offset = reinterpret_cast<uint8_t*>(static_cast<uintptr_t>(entry32bit.offset));
                    entry.width = entry32bit.width;
                    entry.height = entry32bit.height;
                    entry.xOffset = entry32bit.xOffset;
                    entry.yOffset = entry32bit.yOffset;
                    entry.flags = entry32bit.flags;
                    entry.zoomedOffset = entry32bit.zoomedOffset;
                    spriteFile.Entries.push_back(std::move(entry));
                }
                spriteFile.Data.resize(spriteFile.Header.totalSize);
                stream.Read(spriteFile.Data.data(), spriteFile.Header.totalSize);
            }
            spriteFile.MakeEntriesAbsolute();
            return spriteFile;
        }
        catch (IOException&)
        {
            return std::nullopt;
        }
    }

    void SpriteFile::MakeEntriesAbsolute()
    {