vk_blit_image_node.hh

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/* SPDX-FileCopyrightText: 2024 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */

 
#pragma once
 
#include "vk_node_info.hh"
 
namespace blender::gpu::render_graph {

struct VKBlitImageData {
  VkImage src_image;
  VkImage dst_image;
  VkImageBlit region;
  VkFilter filter;
};

class VKBlitImageNode : public VKNodeInfo<VKNodeType::BLIT_IMAGE,
                                          VKBlitImageData,
                                          VKBlitImageData,
                                          VK_PIPELINE_STAGE_TRANSFER_BIT,
                                          VKResourceType::IMAGE> {
 public:
  template<typename Node, typename Storage>
  void set_node_data(Node &node, Storage &storage, const CreateInfo &create_info)
  {
    node.storage_index = storage.blit_image.append_and_get_index(create_info);
  }

  void build_links(VKResourceStateTracker &resources,
                   VKRenderGraphNodeLinks &node_links,
                   const CreateInfo &create_info) override
  {
    ResourceWithStamp src_resource = resources.get_image(create_info.src_image);
    ResourceWithStamp dst_resource = resources.get_image_and_increase_stamp(create_info.dst_image);
    node_links.inputs.append({src_resource,
                              VK_ACCESS_TRANSFER_READ_BIT,
                              VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
                              VK_IMAGE_ASPECT_COLOR_BIT});
    node_links.outputs.append({dst_resource,
                               VK_ACCESS_TRANSFER_WRITE_BIT,
                               VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
                               VK_IMAGE_ASPECT_COLOR_BIT});
  }

  void build_commands(VKCommandBufferInterface &command_buffer,
                      Data &data,
                      VKBoundPipelines & /*r_bound_pipelines*/) override
  {
    command_buffer.blit_image(data.src_image,
                              VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
                              data.dst_image,
                              VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
                              1,
                              &data.region,
                              data.filter);
  }
};
}  // namespace blender::gpu::render_graph