Method ColorStream

test/offscreen_test.cpp:173–177

  template <typename... Args>
  ColorStream(Box bounds, Args&&... args)
      : reader_(std::forward<Args>(args)...),
        bounds_(std::move(bounds)),
        x_(bounds_.xMin()),
        y_(bounds_.yMin()) {}

  void read(Color* buf, uint16_t size, uint32_t& run_length) override {
    run_length = 0;