MeshVersion getMeshVersion(const std::string& filename)
{
CompressedFile file;
file.open(filename, ios::in | ios::binary);
if (file.is_open())
{
MeshVersion version;
file.read(reinterpret_cast<char*>(&version), sizeof(MeshVersion));
file.close();
return version;
}
return MeshVersion{};
}
CompressionTest::CompressionTest(const std::string& testFile, CompressionTypes type)
{
ifstream in;
in.open(testFile, ios::binary);
std::vector<char> inBuf;
in.seekg(0, ios::end);
size_t inSize = static_cast<size_t>(in.tellg());
inBuf.resize(inSize);
in.seekg(0, ios::beg);
in.read(&inBuf[0], static_cast<streamsize>(inSize));
in.close();
CompressedFile outCompress;
outCompress.open(testFile + ".compressed", ios::out | ios::binary, type);
outCompress.write(&inBuf[0], static_cast<streamsize>(inSize));
outCompress.close();
CompressedFile inCompress;
inCompress.open(testFile + ".compressed", ios::in | ios::binary);
std::vector<char> resInBuf;
inCompress.seekg(0, ios::end);
size_t inCompressSize = inCompress.tellg();
inCompress.seekg(0, ios::beg);
resInBuf.resize(inCompressSize);
inCompress.read(&resInBuf[0], static_cast<streamsize>(inCompressSize));
inCompress.close();
ofstream out;
out.open(testFile + ".result", ios::binary);
out.write(&resInBuf[0], static_cast<streamsize>(inCompressSize));
out.close();
// is the original file the same size as the resulting file
ASSERT(inSize == inCompressSize);
// is the content identical
for (size_t i = 0; i < inSize; ++i)
{
ASSERT(inBuf[i] == resInBuf[i]);
}
}
void Mesh::load(ModelResources& modelResources)
{
CompressedFile file;
file.open(m_filename, ios::in | ios::binary);
if (file.is_open())
{
MeshVersion version;
file.read(reinterpret_cast<char*>(&version), sizeof(MeshVersion));
while (!file.eof())
{
m_subMeshes.emplace_back(SubMesh());
if (!m_subMeshes.back().load(modelResources, file))
{
m_subMeshes.pop_back();
}
}
file.close();
}
}