src/ui/lib/escher/vk/texture.h

// Copyright 2016 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_UI_LIB_ESCHER_VK_TEXTURE_H_
#define SRC_UI_LIB_ESCHER_VK_TEXTURE_H_

#include "src/ui/lib/escher/forward_declarations.h"
#include "src/ui/lib/escher/resources/resource.h"
#include "src/ui/lib/escher/vk/image_view.h"
#include "src/ui/lib/escher/vk/sampler.h"

namespace escher {

class Texture : public ImageView {
 public:
  static const ResourceTypeInfo kTypeInfo;
  const ResourceTypeInfo& type_info() const override { return kTypeInfo; }

  Texture(ResourceRecycler* recycler, SamplerPtr sampler, ImagePtr image,
          vk::ImageAspectFlags aspect_mask = vk::ImageAspectFlagBits::eColor);
  ~Texture() override;

  // Construct a new Texture, which encapsulates a newly-created VkImageView and
  // VkSampler.  |aspect_mask| is used to create the VkImageView, and |filter|
  // and |use_unnormalized_coordinates| are used to create the VkSampler.
  // |resource_recycler| guarantees that the underlying Vulkan resources are not
  // destroyed while still referenced by a pending command buffer.
  static TexturePtr New(
      ResourceRecycler* resource_recycler, ImagePtr image, vk::Filter filter,
      vk::ImageAspectFlags aspect_mask = vk::ImageAspectFlagBits::eColor,
      bool use_unnormalized_coordinates = false);

  vk::Image vk_image() const { return image()->vk(); }
  vk::ImageView vk_image_view() const { return vk(); }
  const SamplerPtr& sampler() const { return sampler_; }

 private:
  SamplerPtr sampler_;

  FXL_DISALLOW_COPY_AND_ASSIGN(Texture);
};

typedef fxl::RefPtr<Texture> TexturePtr;

}  // namespace escher

#endif  // SRC_UI_LIB_ESCHER_VK_TEXTURE_H_