src/graphics/examples/vkprimer/common/vulkan_framebuffer.cc

// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "vulkan_framebuffer.h"

#include "utils.h"

VulkanFramebuffer::VulkanFramebuffer(std::shared_ptr<VulkanLogicalDevice> device,
                                     const vk::Extent2D &extent, const vk::RenderPass &render_pass,
                                     const std::vector<vk::ImageView> &image_views)
    : initialized_(false), device_(device), extent_(extent), image_views_(image_views) {
  render_pass_ = std::make_unique<vk::RenderPass>(render_pass);
}

bool VulkanFramebuffer::Init() {
  if (initialized_) {
    RTN_MSG(false, "VulkanFramebuffer is already initialized.\n");
  }

  vk::FramebufferCreateInfo info;
  info.attachmentCount = 1;
  info.renderPass = *render_pass_;
  info.width = extent_.width;
  info.height = extent_.height;
  info.layers = 1;
  for (const auto &image_view : image_views_) {
    info.setPAttachments(&image_view);
    auto rv = device_->device()->createFramebufferUnique(info);
    if (vk::Result::eSuccess != rv.result) {
      RTN_MSG(false, "VK Error: 0x%x - Failed to create framebuffer.\n", rv.result);
    }
    framebuffers_.emplace_back(std::move(rv.value));
  }

  initialized_ = true;
  return true;
}

const std::vector<vk::UniqueFramebuffer> &VulkanFramebuffer::framebuffers() const {
  return framebuffers_;
}