Function readFloat32At

pj_scene3D/core/src/pointcloud_convert.cpp:19–23

using PJ::sdk::PointField;

float readFloat32At(const uint8_t* data) {
  const uint32_t bits = static_cast<uint32_t>(data[0]) | (static_cast<uint32_t>(data[1]) << 8) |
                        (static_cast<uint32_t>(data[2]) << 16) | (static_cast<uint32_t>(data[3]) << 24);
  return std::bit_cast<float>(bits);
}

// Hot-path float read for the bounds scan. On a little-endian host (every PJ target) a memcpy
// is a single (possibly unaligned) load the compiler vectorizes — ~10x cheaper than