Method commit

butano/src/bn_hdma_manager.cpp:92–125

        }

        bool commit(bool use_dma, bool raise_irq)
        {
            const state& current_state = _current_state();

            if(int elements = current_state.elements)
            {
                const uint16_t* source_ptr = current_state.source_ptr;
                const uint16_t* initial_copy_source_ptr = source_ptr + ((display::height() - 1) * elements);
                uint16_t* destination_ptr = current_state.destination_ptr;

                if(use_dma)
                {
                    hw::dma::copy_half_words(initial_copy_source_ptr, elements, destination_ptr);
                }
                else
                {
                    hw::memory::copy_half_words(initial_copy_source_ptr, elements, destination_ptr);
                }

                if(raise_irq)
                {
                    hw::dma::start_hdma_irq(_channel, source_ptr, elements, destination_ptr);
                }
                else
                {
                    hw::dma::start_hdma(_channel, source_ptr, elements, destination_ptr);
                }

                return true;
            }

            hw::dma::stop_hdma(_channel);
            return false;
        }

    private:
        state _states[2];