sampler_vk.h

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// Copyright 2013 The Flutter 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 FLUTTER_IMPELLER_RENDERER_BACKEND_VULKAN_SAMPLER_VK_H_
#define FLUTTER_IMPELLER_RENDERER_BACKEND_VULKAN_SAMPLER_VK_H_
 
#include "flutter/fml/macros.h"
#include "impeller/base/backend_cast.h"
#include "impeller/core/sampler.h"
#include "impeller/renderer/backend/vulkan/shared_object_vk.h"
#include "impeller/renderer/backend/vulkan/vk.h"
 
namespace impeller {
 
class SamplerLibraryVK;
class YUVConversionVK;
 
class SamplerVK final : public Sampler, public BackendCast<SamplerVK, Sampler> {
 public:
  SamplerVK(const vk::Device& device,
            SamplerDescriptor desc,
            std::shared_ptr<YUVConversionVK> yuv_conversion = {});
 
  // |Sampler|
  ~SamplerVK() override;
 
  vk::Sampler GetSampler() const;
 
  std::shared_ptr<SamplerVK> CreateVariantForConversion(
      std::shared_ptr<YUVConversionVK> conversion) const;
 
  const std::shared_ptr<YUVConversionVK>& GetYUVConversion() const;
 
 private:
  friend SamplerLibraryVK;
 
  const vk::Device device_;
  SharedHandleVK<vk::Sampler> sampler_;
  std::shared_ptr<YUVConversionVK> yuv_conversion_;
  bool is_valid_ = false;
 
  SamplerVK(const SamplerVK&) = delete;
 
  SamplerVK& operator=(const SamplerVK&) = delete;
};
 
}  // namespace impeller
 
#endif  // FLUTTER_IMPELLER_RENDERER_BACKEND_VULKAN_SAMPLER_VK_H_