112 lines
5.5 KiB
C++
112 lines
5.5 KiB
C++
/* 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 <vulkan/vulkan.hpp>
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#include <platform/application.h>
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/**
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* @brief A self-contained (minimal use of framework) sample that illustrates
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* the rendering of a triangle
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*/
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class HPPHelloTriangle : public vkb::Application
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{
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/**
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* @brief Swapchain data
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*/
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struct SwapchainData
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{
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vk::Extent2D extent; // The swapchain extent
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vk::Format format = vk::Format::eUndefined; // Pixel format of the swapchain.
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vk::SwapchainKHR swapchain; // The swapchain.
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std::vector<vk::ImageView> image_views; // The image view for each swapchain image.
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std::vector<vk::Framebuffer> framebuffers; // The framebuffer for each swapchain image view.
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};
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/**
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* @brief Per-frame data
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*/
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struct FrameData
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{
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vk::Fence queue_submit_fence;
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vk::CommandPool primary_command_pool;
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vk::CommandBuffer primary_command_buffer;
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vk::Semaphore swapchain_acquire_semaphore;
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vk::Semaphore swapchain_release_semaphore;
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};
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/// Properties of the vertices used in this sample.
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struct Vertex
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{
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glm::vec3 position;
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glm::vec3 color;
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};
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public:
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HPPHelloTriangle();
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virtual ~HPPHelloTriangle();
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private:
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// from vkb::Application
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virtual bool prepare(const vkb::ApplicationOptions &options) override;
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virtual bool resize(const uint32_t width, const uint32_t height) override;
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virtual void update(float delta_time) override;
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std::pair<vk::Result, uint32_t> acquire_next_image();
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vk::Device create_device(const std::vector<const char *> &required_device_extensions);
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vk::Pipeline create_graphics_pipeline();
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vk::ImageView create_image_view(vk::Image image);
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vk::Instance create_instance(std::vector<const char *> const &required_instance_extensions, std::vector<const char *> const &required_validation_layers);
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vk::RenderPass create_render_pass();
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vk::ShaderModule create_shader_module(std::string const &path);
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vk::SwapchainKHR create_swapchain(vk::Extent2D const &swapchain_extent, vk::SurfaceFormatKHR surface_format, vk::SwapchainKHR old_swapchain);
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std::pair<vk::Buffer, VmaAllocation> create_vertex_buffer();
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VmaAllocator create_vma_allocator();
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void init_framebuffers();
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void init_swapchain();
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void render_triangle(uint32_t swapchain_index);
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void select_physical_device_and_surface();
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void teardown_framebuffers();
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void teardown_per_frame(FrameData &per_frame_data);
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private:
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vk::Instance instance; // The Vulkan instance.
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vk::PhysicalDevice gpu; // The Vulkan physical device.
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vk::Device device; // The Vulkan device.
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vk::Queue queue; // The Vulkan device queue.
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SwapchainData swapchain_data; // The swapchain state.
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vk::SurfaceKHR surface; // The surface we will render to.
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uint32_t graphics_queue_index; // The queue family index where graphics work will be submitted.
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vk::RenderPass render_pass; // The renderpass description.
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vk::PipelineLayout pipeline_layout; // The pipeline layout for resources.
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vk::Pipeline pipeline; // The graphics pipeline.
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vk::DebugUtilsMessengerEXT debug_utils_messenger; // The debug utils messenger.
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std::vector<vk::Semaphore> recycled_semaphores; // A set of semaphores that can be reused.
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std::vector<FrameData> per_frame_data; // A set of per-frame data.
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vk::Buffer vertex_buffer; // The Vulkan buffer object that holds the vertex data for the triangle.
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VmaAllocation vertex_buffer_allocation = VK_NULL_HANDLE; // Vulkan Memory Allocator (VMA) allocation info for the vertex buffer.
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VmaAllocator vma_allocator; // The VMA allocator for memory management.
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#if defined(VKB_DEBUG) || defined(VKB_VALIDATION_LAYERS)
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vk::DebugUtilsMessengerCreateInfoEXT debug_utils_create_info;
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#endif
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};
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std::unique_ptr<vkb::Application> create_hpp_hello_triangle();
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