src/ngfx/porting/vulkan/VKFramebuffer.cpp

Source code

/*
 * Copyright 2020 GoPro Inc.
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
#include "ngfx/porting/vulkan/VKFramebuffer.h"
#include "ngfx/porting/vulkan/VKDebugUtil.h"
#include "ngfx/porting/vulkan/VKDevice.h"
#include "ngfx/porting/vulkan/VKRenderPass.h"
#include "ngfx/porting/vulkan/VKTexture.h"

using namespace ngfx;

void VKFramebuffer::create(
    VkDevice device, VkRenderPass renderPass,
    const std::vector<VKAttachmentDescriptor> &attachments, uint32_t w,
    uint32_t h, uint32_t layers) {
  this->device = device;
  VkResult vkResult;
  this->numAttachments = attachments.size();
  this->w = w;
  this->h = h;
  this->layers = layers;
  vkAttachments.resize(attachments.size());
  vkAttachmentInfos.resize(attachments.size());
  for (uint32_t j = 0; j < attachments.size(); j++) {
    vkAttachments[j] = attachments[j].imageView->v;
    vkAttachmentInfos[j] = attachments[j].info;
  }
  createInfo = {VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO,
                NULL,
                0,
                renderPass,
                uint32_t(vkAttachments.size()),
                vkAttachments.data(),
                w,
                h,
                layers};
  V(vkCreateFramebuffer(device, &createInfo, nullptr, &v));
}

VKFramebuffer::~VKFramebuffer() {
  if (v)
    VK_TRACE(vkDestroyFramebuffer(device, v, nullptr));
}

Framebuffer *Framebuffer::create(Device *device, RenderPass *renderPass,
                                 const std::vector<Attachment> &attachments,
                                 uint32_t w, uint32_t h, uint32_t layers) {
  VKFramebuffer *vkFramebuffer = new VKFramebuffer();
  vkFramebuffer->attachments = attachments;
  std::vector<VKFramebuffer::VKAttachmentDescriptor> vkAttachments(
      attachments.size());
  for (int j = 0; j < vkAttachments.size(); j++) {
    auto &attachment = attachments[j];
    auto vkTexture = vk(attachment.texture);
    auto &vkAttachment = vkAttachments[j];
    vkAttachment.info = {VkImageUsageFlags(vkTexture->imageUsageFlags)};
    vkAttachment.imageView = vkTexture->getImageView(
        VK_IMAGE_VIEW_TYPE_2D, 1, 1, attachment.level, attachment.layer);
  }
  vkFramebuffer->create(vk(device)->v, vk(renderPass)->v, vkAttachments, w, h,
                        layers);
  return vkFramebuffer;
}

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Updated on 3 April 2021 at 20:21:52 PDT