gistfile1.txt

        else if (program.get_pipeline_layout()->get_hash() != current_layout->get_hash())
        {
                auto &new_layout = program.get_pipeline_layout()->get_resource_layout();
                auto &old_layout = current_layout->get_resource_layout();

                // If the push constant layout changes, all descriptor sets
                // are invalidated.
                if (new_layout.push_constant_layout_hash != old_layout.push_constant_layout_hash)
                {
                        dirty_sets = ~0u;
                        set_dirty(COMMAND_BUFFER_DIRTY_PUSH_CONSTANTS_BIT);
                }
                else
                {
                        // Find the first set whose descriptor set layout differs.
                        auto *new_pipe_layout = program.get_pipeline_layout();
                        for (unsigned set = 0; set < VULKAN_NUM_DESCRIPTOR_SETS; set++)
                        {
                                if (new_pipe_layout->get_allocator(set) != current_layout->get_allocator(set))
                                {
                                        dirty_sets |= ~((1u << set) - 1);
                                        break;
                                }
                        }
                }
                current_layout = program.get_pipeline_layout();
                current_pipeline_layout = current_layout->get_layout();
        }