src/graphics/examples/vkproto/common/image_view.h

// Copyright 2020 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.

#ifndef SRC_GRAPHICS_EXAMPLES_VKPROTO_COMMON_IMAGE_VIEW_H_
#define SRC_GRAPHICS_EXAMPLES_VKPROTO_COMMON_IMAGE_VIEW_H_

#include "src/graphics/examples/vkproto/common/device.h"
#include "src/graphics/examples/vkproto/common/physical_device.h"

#include <vulkan/vulkan.hpp>

namespace vkp {

//
// ImageView provides an image view with a backing |image_| and
// |image_memory_| suitable as a color attachment for rendering.
//
class ImageView {
 public:
  ImageView(std::shared_ptr<vk::Device> device, const vk::PhysicalDevice &physical_device,
            const vk::Extent2D &extent = {1024, 768});
  ImageView() = delete;

  bool Init();
  bool Init(vk::UniqueImage image, vk::UniqueDeviceMemory image_memory, vk::Format format);

  const vk::Extent2D &extent() const { return extent_; }
  const vk::Format &format() const { return format_; }
  const vk::UniqueDeviceMemory &image_memory() const { return image_memory_; }
  const vk::UniqueImage &image() const { return image_; }
  const vk::ImageView &get() const { return image_view_.get(); }

 private:
  VKP_DISALLOW_COPY_AND_ASSIGN(ImageView);

  bool initialized_;
  std::shared_ptr<vk::Device> device_;
  vk::PhysicalDevice physical_device_;
  vk::UniqueImage image_;
  vk::UniqueDeviceMemory image_memory_;
  vk::Extent2D extent_;
  vk::Format format_;

  vk::UniqueImageView image_view_;
};

}  // namespace vkp

#endif  // SRC_GRAPHICS_EXAMPLES_VKPROTO_COMMON_IMAGE_VIEW_H_