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/* Copyright (c) 2021-2025, NVIDIA CORPORATION. All rights reserved.
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 the "License";
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include "core/hpp_image.h"
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#include "core/hpp_image_view.h"
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#include <functional>
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#include <memory>
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namespace vkb
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{
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namespace core
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{
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class HPPDevice;
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}
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namespace rendering
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{
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/**
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* @brief Description of render pass attachments.
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* HPPAttachment descriptions can be used to automatically create render target images.
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*/
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struct HPPAttachment
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{
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HPPAttachment() = default;
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HPPAttachment(vk::Format format, vk::SampleCountFlagBits samples, vk::ImageUsageFlags usage) :
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format{format},
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samples{samples},
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usage{usage}
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{}
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vk::Format format = vk::Format::eUndefined;
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vk::SampleCountFlagBits samples = vk::SampleCountFlagBits::e1;
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vk::ImageUsageFlags usage = vk::ImageUsageFlagBits::eSampled;
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vk::ImageLayout initial_layout = vk::ImageLayout::eUndefined;
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};
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/**
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* @brief HPPRenderContext is a transcoded version of vkb::RenderContext from vulkan to vulkan-hpp.
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*
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* See vkb::RenderContext for documentation
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*/
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class HPPRenderTarget
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{
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public:
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using CreateFunc = std::function<std::unique_ptr<HPPRenderTarget>(core::HPPImage &&)>;
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static const CreateFunc DEFAULT_CREATE_FUNC;
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HPPRenderTarget(std::vector<core::HPPImage> &&images);
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HPPRenderTarget(std::vector<core::HPPImageView> &&image_views);
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HPPRenderTarget(const HPPRenderTarget &) = delete;
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HPPRenderTarget(HPPRenderTarget &&) = delete;
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HPPRenderTarget &operator=(const HPPRenderTarget &other) noexcept = delete;
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HPPRenderTarget &operator=(HPPRenderTarget &&other) noexcept = delete;
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const vk::Extent2D &get_extent() const;
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const std::vector<core::HPPImageView> &get_views() const;
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const std::vector<HPPAttachment> &get_attachments() const;
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/**
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* @brief Sets the current input attachments overwriting the current ones
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* Should be set before beginning the render pass and before starting a new subpass
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* @param input Set of attachment reference number to use as input
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*/
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void set_input_attachments(std::vector<uint32_t> &input);
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const std::vector<uint32_t> &get_input_attachments() const;
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/**
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* @brief Sets the current output attachments overwriting the current ones
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* Should be set before beginning the render pass and before starting a new subpass
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* @param output Set of attachment reference number to use as output
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*/
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void set_output_attachments(std::vector<uint32_t> &output);
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const std::vector<uint32_t> &get_output_attachments() const;
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void set_layout(uint32_t attachment, vk::ImageLayout layout);
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vk::ImageLayout get_layout(uint32_t attachment) const;
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private:
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vkb::core::DeviceCpp const &device;
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vk::Extent2D extent;
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std::vector<core::HPPImage> images;
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std::vector<core::HPPImageView> views;
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std::vector<HPPAttachment> attachments;
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std::vector<uint32_t> input_attachments = {}; // By default there are no input attachments
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std::vector<uint32_t> output_attachments = {0}; // By default the output attachments is attachment 0
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};
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} // namespace rendering
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} // namespace vkb
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