745 lines
32 KiB
C++
745 lines
32 KiB
C++
/* Copyright (c) 2022-2025, Sascha Willems
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* Copyright (c) 2024-2025, Arm Limited and Contributors
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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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/*
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* Using Vulkan profiles from the LunarG SDK for device and instance setup
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*/
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#include "profiles.h"
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#include "common/error.h"
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#include "common/vk_common.h"
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#include "core/command_pool.h"
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#include "core/queue.h"
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#include "fence_pool.h"
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// The Vulkan Profiles library is part of the SDK and has been copied to the sample's folder for convenience
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#include "vulkan_profiles.hpp"
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// This sample will use the Khronos roadmap 2022 profile which requires Vulkan 1.3
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// For details on what this profile requires/enables, see https://docs.vulkan.org/spec/latest/appendices/roadmap.html#roadmap-2022
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const VpProfileProperties profile_properties = {VP_KHR_ROADMAP_2022_NAME, VP_KHR_ROADMAP_2022_SPEC_VERSION};
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Profiles::Profiles()
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{
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title = "Vulkan Profiles";
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}
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Profiles::~Profiles()
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{
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if (has_device())
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{
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// Clean up used Vulkan resources
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// Note : Inherited destructor cleans up resources stored in base class
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for (auto &tex : textures)
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vkFreeMemory(get_device().get_handle(), tex.memory, nullptr);
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vkDestroyPipeline(get_device().get_handle(), pipeline, nullptr);
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vkDestroyPipelineLayout(get_device().get_handle(), pipeline_layout, nullptr);
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vkDestroyDescriptorSetLayout(get_device().get_handle(), base_descriptor_set_layout, nullptr);
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vkDestroyDescriptorSetLayout(get_device().get_handle(), sampler_descriptor_set_layout, nullptr);
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}
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}
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// This sample overrides the device creation part of the framework
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// Instead of manually setting up all extensions, features, etc. we use the Vulkan Profiles library to simplify device setup
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std::unique_ptr<vkb::core::DeviceC> Profiles::create_device(vkb::PhysicalDevice &gpu)
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{
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// Check if the profile is supported at device level
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VkBool32 profile_supported;
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vpGetPhysicalDeviceProfileSupport(get_instance().get_handle(), gpu.get_handle(), &profile_properties, &profile_supported);
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if (!profile_supported)
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{
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throw std::runtime_error{"The selected profile is not supported (error at creating the device)!"};
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}
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// If the profile is supported, we can start setting things up and use the profiles library for that
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// Simplified queue setup (only graphics)
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uint32_t selected_queue_family = 0;
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const auto &queue_family_properties = gpu.get_queue_family_properties();
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const float default_queue_priority{0.0f};
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VkDeviceQueueCreateInfo queue_create_info{};
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queue_create_info.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
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queue_create_info.queueCount = 1;
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queue_create_info.pQueuePriorities = &default_queue_priority;
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for (uint32_t i = 0; i < static_cast<uint32_t>(queue_family_properties.size()); i++)
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{
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if (queue_family_properties[i].queueFlags & VK_QUEUE_GRAPHICS_BIT)
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{
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queue_create_info.queueFamilyIndex = i;
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selected_queue_family = i;
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break;
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}
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}
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std::vector<const char *> enabled_extensions;
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enabled_extensions.push_back(VK_KHR_SWAPCHAIN_EXTENSION_NAME);
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VkDeviceCreateInfo create_info{VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO};
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create_info.pNext = gpu.get_extension_feature_chain();
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create_info.pQueueCreateInfos = &queue_create_info;
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create_info.queueCreateInfoCount = 1;
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create_info.enabledExtensionCount = static_cast<uint32_t>(enabled_extensions.size());
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create_info.ppEnabledExtensionNames = enabled_extensions.data();
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// Create the device using the profiles library
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VpDeviceCreateInfo deviceCreateInfo{};
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deviceCreateInfo.pCreateInfo = &create_info;
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deviceCreateInfo.pEnabledFullProfiles = &profile_properties;
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deviceCreateInfo.enabledFullProfileCount = 1;
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VkDevice vulkan_device;
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VkResult result = vpCreateDevice(gpu.get_handle(), &deviceCreateInfo, nullptr, &vulkan_device);
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if (result != VK_SUCCESS)
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{
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throw vkb::VulkanException{result, "Could not create device with the selected profile. The device may not support all features required by this profile!"};
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}
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// Post device setup required for the framework
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auto device = std::make_unique<vkb::core::DeviceC>(gpu, vulkan_device, get_surface());
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device->add_queue(0, queue_create_info.queueFamilyIndex, queue_family_properties[selected_queue_family], true);
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vkb::allocated::init(*device); // prepare the memory allocator
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device->create_internal_command_pool();
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device->create_internal_fence_pool();
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return device;
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}
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// This sample overrides the instance creation part of the framework
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// Instead of manually setting up all properties we use the Vulkan Profiles library to simplify instance setup
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std::unique_ptr<vkb::core::InstanceC> Profiles::create_instance()
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{
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// Initialize Volk Vulkan Loader
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VkResult result = volkInitialize();
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if (result)
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{
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throw vkb::VulkanException(result, "Failed to initialize volk.");
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}
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// Check if the profile is supported at instance level
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VkBool32 profile_supported;
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vpGetInstanceProfileSupport(nullptr, &profile_properties, &profile_supported);
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if (!profile_supported)
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{
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throw std::runtime_error{"The selected profile is not supported (error at creating the instance)!"};
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}
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// Even when using profiles we still need to provide the platform specific get_surface() extension
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std::vector<const char *> enabled_extensions;
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enabled_extensions.push_back(VK_KHR_SURFACE_EXTENSION_NAME);
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for (const char *extension_name : window->get_required_surface_extensions())
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{
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enabled_extensions.push_back(extension_name);
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}
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VkInstanceCreateInfo create_info{};
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#if (defined(VKB_ENABLE_PORTABILITY))
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uint32_t instance_extension_count;
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VK_CHECK(vkEnumerateInstanceExtensionProperties(nullptr, &instance_extension_count, nullptr));
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std::vector<VkExtensionProperties> available_instance_extensions(instance_extension_count);
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VK_CHECK(vkEnumerateInstanceExtensionProperties(nullptr, &instance_extension_count, available_instance_extensions.data()));
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// If VK_KHR_portability_enumeration is available at runtime, enable the extension and flag for instance creation
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if (std::ranges::any_of(available_instance_extensions,
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[](VkExtensionProperties const &extension) { return strcmp(extension.extensionName, VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME) == 0; }))
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{
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enabled_extensions.push_back(VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME);
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create_info.flags |= VK_INSTANCE_CREATE_ENUMERATE_PORTABILITY_BIT_KHR;
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}
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#endif
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#if defined(PLATFORM__MACOS)
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// On Apple use layer setting to enable MoltenVK's Metal argument buffers - needed for descriptor indexing/scaling
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enabled_extensions.push_back(VK_EXT_LAYER_SETTINGS_EXTENSION_NAME);
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VkLayerSettingEXT layerSetting{};
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layerSetting.pLayerName = "MoltenVK";
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layerSetting.pSettingName = "MVK_CONFIG_USE_METAL_ARGUMENT_BUFFERS";
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layerSetting.type = VK_LAYER_SETTING_TYPE_INT32_EXT;
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layerSetting.valueCount = 1;
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const int32_t useMetalArgumentBuffers = 1;
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layerSetting.pValues = &useMetalArgumentBuffers;
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VkLayerSettingsCreateInfoEXT layerSettingsCreateInfo{};
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layerSettingsCreateInfo.sType = VK_STRUCTURE_TYPE_LAYER_SETTINGS_CREATE_INFO_EXT;
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layerSettingsCreateInfo.settingCount = 1;
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layerSettingsCreateInfo.pSettings = &layerSetting;
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create_info.pNext = &layerSettingsCreateInfo;
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#endif
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create_info.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
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create_info.ppEnabledExtensionNames = enabled_extensions.data();
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create_info.enabledExtensionCount = static_cast<uint32_t>(enabled_extensions.size());
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// Note: We don't explicitly set an application info here so the one from the profile is used
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// This also defines the api version to be used
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// Create the instance using the profiles library
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VpInstanceCreateInfo instance_create_info{};
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instance_create_info.pEnabledFullProfiles = &profile_properties;
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instance_create_info.enabledFullProfileCount = 1;
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instance_create_info.pCreateInfo = &create_info;
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VkInstance vulkan_instance;
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result = vpCreateInstance(&instance_create_info, nullptr, &vulkan_instance);
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if (result != VK_SUCCESS)
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{
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throw vkb::VulkanException{result, "Could not create instance with the selected profile. The instance may not support all features required by this profile!"};
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}
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volkLoadInstance(vulkan_instance);
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return std::make_unique<vkb::core::InstanceC>(vulkan_instance);
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}
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void Profiles::generate_textures()
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{
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// Generate random textures to be sourced from a single descriptor
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// Image info is same for all textures
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const int32_t dim = 2;
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VkImageCreateInfo image_info = vkb::initializers::image_create_info();
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image_info.format = VK_FORMAT_R8G8B8A8_UNORM;
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image_info.extent = {dim, dim, 1};
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image_info.mipLevels = 1;
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image_info.arrayLayers = 1;
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image_info.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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image_info.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
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image_info.imageType = VK_IMAGE_TYPE_2D;
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image_info.samples = VK_SAMPLE_COUNT_1_BIT;
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image_info.tiling = VK_IMAGE_TILING_OPTIMAL;
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image_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
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VkImageViewCreateInfo image_view = vkb::initializers::image_view_create_info();
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image_view.viewType = VK_IMAGE_VIEW_TYPE_2D;
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image_view.format = VK_FORMAT_R8G8B8A8_UNORM;
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image_view.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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image_view.subresourceRange.baseMipLevel = 0;
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image_view.subresourceRange.levelCount = 1;
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image_view.subresourceRange.baseArrayLayer = 0;
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image_view.subresourceRange.layerCount = 1;
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auto staging_buffer = vkb::core::BufferC::create_staging_buffer(get_device(), image_info.extent.width * image_info.extent.height * sizeof(uint32_t), nullptr);
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textures.resize(32);
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for (size_t i = 0; i < textures.size(); i++)
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{
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VK_CHECK(vkCreateImage(get_device().get_handle(), &image_info, nullptr, &textures[i].image));
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VkMemoryAllocateInfo memory_allocation_info = vkb::initializers::memory_allocate_info();
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VkMemoryRequirements memory_requirements;
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vkGetImageMemoryRequirements(get_device().get_handle(), textures[i].image, &memory_requirements);
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memory_allocation_info.allocationSize = memory_requirements.size;
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memory_allocation_info.memoryTypeIndex = get_device().get_gpu().get_memory_type(memory_requirements.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
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VK_CHECK(vkAllocateMemory(get_device().get_handle(), &memory_allocation_info, nullptr, &textures[i].memory));
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VK_CHECK(vkBindImageMemory(get_device().get_handle(), textures[i].image, textures[i].memory, 0));
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image_view.image = textures[i].image;
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VK_CHECK(vkCreateImageView(get_device().get_handle(), &image_view, nullptr, &textures[i].image_view));
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// Generate a random texture
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std::random_device rnd_device;
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std::default_random_engine rnd_engine(rnd_device());
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std::uniform_int_distribution<short> rnd_dist(0, 255);
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const size_t buffer_size = dim * dim * 4;
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uint8_t *buffer = staging_buffer.map();
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for (size_t i = 0; i < dim * dim; i++)
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{
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buffer[i * 4] = static_cast<uint8_t>(rnd_dist(rnd_engine));
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buffer[i * 4 + 1] = static_cast<uint8_t>(rnd_dist(rnd_engine));
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buffer[i * 4 + 2] = static_cast<uint8_t>(rnd_dist(rnd_engine));
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buffer[i * 4 + 3] = 255;
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}
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staging_buffer.unmap();
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staging_buffer.flush();
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auto cmd = get_device().get_command_pool().request_command_buffer();
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cmd->begin(VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT);
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vkb::image_layout_transition(cmd->get_handle(), textures[i].image, VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
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VkBufferImageCopy copy_info{};
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copy_info.imageSubresource = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 0, 1};
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copy_info.imageExtent = image_info.extent;
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vkCmdCopyBufferToImage(cmd->get_handle(), staging_buffer.get_handle(), textures[i].image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, ©_info);
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vkb::image_layout_transition(cmd->get_handle(), textures[i].image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
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cmd->end();
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auto const &graphicsQueue = get_device().get_queue_by_flags(VK_QUEUE_GRAPHICS_BIT, 0);
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graphicsQueue.submit(*cmd, VK_NULL_HANDLE);
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graphicsQueue.wait_idle();
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}
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// Create immutable sampler for the textures
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VkSamplerCreateInfo sampler_info = vkb::initializers::sampler_create_info();
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sampler_info.magFilter = VK_FILTER_NEAREST;
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sampler_info.minFilter = VK_FILTER_NEAREST;
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sampler_info.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
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sampler_info.addressModeU = VK_SAMPLER_ADDRESS_MODE_REPEAT;
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sampler_info.addressModeV = VK_SAMPLER_ADDRESS_MODE_REPEAT;
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sampler_info.addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT;
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sampler_info.mipLodBias = 0.0f;
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sampler_info.compareOp = VK_COMPARE_OP_NEVER;
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sampler_info.minLod = 0.0f;
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sampler_info.maxLod = 0.0f;
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sampler_info.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
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VK_CHECK(vkCreateSampler(get_device().get_handle(), &sampler_info, nullptr, &sampler));
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}
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void Profiles::generate_cubes()
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{
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// Generate cubes with randomized per-face texture indices (as base for descriptor indexing)
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std::vector<VertexStructure> vertices;
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std::vector<uint32_t> indices;
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// Generate random per-face texture indices
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std::random_device rndDevice;
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std::default_random_engine rndEngine(rndDevice());
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std::uniform_int_distribution<int32_t> rndDist(0, static_cast<uint32_t>(textures.size()) - 1);
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// Generate cubes with random per-face texture indices
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const uint32_t count = 6;
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for (uint32_t i = 0; i < count; i++)
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{
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// Get a random texture index that the shader will sample from via the vertex attribute
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const auto texture_index = [&rndDist, &rndEngine]() {
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return rndDist(rndEngine);
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};
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// Push vertices to buffer
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float pos = 2.5f * i - (count * 2.5f / 2.0f);
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const std::vector<VertexStructure> cube = {
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{{-1.0f + pos, -1.0f, 1.0f}, {0.0f, 0.0f}, texture_index()},
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{{1.0f + pos, -1.0f, 1.0f}, {1.0f, 0.0f}, texture_index()},
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{{1.0f + pos, 1.0f, 1.0f}, {1.0f, 1.0f}, texture_index()},
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{{-1.0f + pos, 1.0f, 1.0f}, {0.0f, 1.0f}, texture_index()},
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{{1.0f + pos, 1.0f, 1.0f}, {0.0f, 0.0f}, texture_index()},
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{{1.0f + pos, 1.0f, -1.0f}, {1.0f, 0.0f}, texture_index()},
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{{1.0f + pos, -1.0f, -1.0f}, {1.0f, 1.0f}, texture_index()},
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{{1.0f + pos, -1.0f, 1.0f}, {0.0f, 1.0f}, texture_index()},
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{{-1.0f + pos, -1.0f, -1.0f}, {0.0f, 0.0f}, texture_index()},
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{{1.0f + pos, -1.0f, -1.0f}, {1.0f, 0.0f}, texture_index()},
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{{1.0f + pos, 1.0f, -1.0f}, {1.0f, 1.0f}, texture_index()},
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{{-1.0f + pos, 1.0f, -1.0f}, {0.0f, 1.0f}, texture_index()},
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{{-1.0f + pos, -1.0f, -1.0f}, {0.0f, 0.0f}, texture_index()},
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{{-1.0f + pos, -1.0f, 1.0f}, {1.0f, 0.0f}, texture_index()},
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{{-1.0f + pos, 1.0f, 1.0f}, {1.0f, 1.0f}, texture_index()},
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{{-1.0f + pos, 1.0f, -1.0f}, {0.0f, 1.0f}, texture_index()},
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{{1.0f + pos, 1.0f, 1.0f}, {0.0f, 0.0f}, texture_index()},
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{{-1.0f + pos, 1.0f, 1.0f}, {1.0f, 0.0f}, texture_index()},
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{{-1.0f + pos, 1.0f, -1.0f}, {1.0f, 1.0f}, texture_index()},
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{{1.0f + pos, 1.0f, -1.0f}, {0.0f, 1.0f}, texture_index()},
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{{-1.0f + pos, -1.0f, -1.0f}, {0.0f, 0.0f}, texture_index()},
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{{1.0f + pos, -1.0f, -1.0f}, {1.0f, 0.0f}, texture_index()},
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{{1.0f + pos, -1.0f, 1.0f}, {1.0f, 1.0f}, texture_index()},
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{{-1.0f + pos, -1.0f, 1.0f}, {0.0f, 1.0f}, texture_index()},
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};
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for (auto &vertex : cube)
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{
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vertices.push_back(vertex);
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}
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// Push indices to buffer
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const std::vector<uint32_t> cubeIndices = {
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0, 1, 2, 0, 2, 3,
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4, 5, 6, 4, 6, 7,
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8, 9, 10, 8, 10, 11,
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12, 13, 14, 12, 14, 15,
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16, 17, 18, 16, 18, 19,
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20, 21, 22, 20, 22, 23};
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for (auto &index : cubeIndices)
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{
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indices.push_back(index + static_cast<uint32_t>(vertices.size()));
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}
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}
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index_count = static_cast<uint32_t>(indices.size());
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auto vertex_buffer_size = vkb::to_u32(vertices.size() * sizeof(VertexStructure));
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auto index_buffer_size = vkb::to_u32(indices.size() * sizeof(uint32_t));
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// Create buffers
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// For the sake of simplicity we won't stage the vertex data to the gpu memory
|
|
vertex_buffer = std::make_unique<vkb::core::BufferC>(get_device(),
|
|
vertex_buffer_size,
|
|
VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,
|
|
VMA_MEMORY_USAGE_CPU_TO_GPU);
|
|
vertex_buffer->update(vertices.data(), vertex_buffer_size);
|
|
|
|
index_buffer = std::make_unique<vkb::core::BufferC>(get_device(),
|
|
index_buffer_size,
|
|
VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_INDEX_BUFFER_BIT,
|
|
VMA_MEMORY_USAGE_CPU_TO_GPU);
|
|
index_buffer->update(indices.data(), index_buffer_size);
|
|
}
|
|
|
|
void Profiles::build_command_buffers()
|
|
{
|
|
VkCommandBufferBeginInfo command_buffer_begin_info = vkb::initializers::command_buffer_begin_info();
|
|
|
|
VkClearValue clear_values[2]{};
|
|
clear_values[0].color = default_clear_color;
|
|
clear_values[1].depthStencil = {0.0f, 0};
|
|
|
|
VkRenderPassBeginInfo render_pass_begin_info = vkb::initializers::render_pass_begin_info();
|
|
render_pass_begin_info.renderPass = render_pass;
|
|
render_pass_begin_info.renderArea.offset.x = 0;
|
|
render_pass_begin_info.renderArea.offset.y = 0;
|
|
render_pass_begin_info.renderArea.extent.width = width;
|
|
render_pass_begin_info.renderArea.extent.height = height;
|
|
render_pass_begin_info.clearValueCount = 2;
|
|
render_pass_begin_info.pClearValues = clear_values;
|
|
|
|
for (int32_t i = 0; i < draw_cmd_buffers.size(); ++i)
|
|
{
|
|
render_pass_begin_info.framebuffer = framebuffers[i];
|
|
VK_CHECK(vkBeginCommandBuffer(draw_cmd_buffers[i], &command_buffer_begin_info));
|
|
vkCmdBeginRenderPass(draw_cmd_buffers[i], &render_pass_begin_info, VK_SUBPASS_CONTENTS_INLINE);
|
|
VkViewport viewport = vkb::initializers::viewport(static_cast<float>(width), static_cast<float>(height), 0.0f, 1.0f);
|
|
vkCmdSetViewport(draw_cmd_buffers[i], 0, 1, &viewport);
|
|
VkRect2D scissor = vkb::initializers::rect2D(static_cast<int32_t>(width), static_cast<int32_t>(height), 0, 0);
|
|
vkCmdSetScissor(draw_cmd_buffers[i], 0, 1, &scissor);
|
|
vkCmdBindDescriptorSets(draw_cmd_buffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline_layout, 0, 1, &base_descriptor_set, 0, nullptr);
|
|
vkCmdBindPipeline(draw_cmd_buffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
|
|
VkDeviceSize offsets[1] = {0};
|
|
vkCmdBindVertexBuffers(draw_cmd_buffers[i], 0, 1, vertex_buffer->get(), offsets);
|
|
vkCmdBindIndexBuffer(draw_cmd_buffers[i], index_buffer->get_handle(), 0, VK_INDEX_TYPE_UINT32);
|
|
vkCmdDrawIndexed(draw_cmd_buffers[i], index_count, 1, 0, 0, 0);
|
|
draw_ui(draw_cmd_buffers[i]);
|
|
vkCmdEndRenderPass(draw_cmd_buffers[i]);
|
|
VK_CHECK(vkEndCommandBuffer(draw_cmd_buffers[i]));
|
|
}
|
|
}
|
|
|
|
void Profiles::draw()
|
|
{
|
|
ApiVulkanSample::prepare_frame();
|
|
|
|
// Command buffer to be submitted to the queue
|
|
submit_info.commandBufferCount = 1;
|
|
submit_info.pCommandBuffers = &draw_cmd_buffers[current_buffer];
|
|
|
|
// Submit to queue
|
|
VK_CHECK(vkQueueSubmit(queue, 1, &submit_info, VK_NULL_HANDLE));
|
|
|
|
ApiVulkanSample::submit_frame();
|
|
}
|
|
|
|
void Profiles::setup_descriptor_pool()
|
|
{
|
|
std::vector<VkDescriptorPoolSize> pool_sizes = {
|
|
vkb::initializers::descriptor_pool_size(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 1),
|
|
vkb::initializers::descriptor_pool_size(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, static_cast<uint32_t>(textures.size()))};
|
|
|
|
VkDescriptorPoolCreateInfo descriptor_pool_create_info =
|
|
vkb::initializers::descriptor_pool_create_info(
|
|
static_cast<uint32_t>(pool_sizes.size()),
|
|
pool_sizes.data(),
|
|
3);
|
|
VK_CHECK(vkCreateDescriptorPool(get_device().get_handle(), &descriptor_pool_create_info, nullptr, &descriptor_pool));
|
|
}
|
|
|
|
void Profiles::setup_descriptor_set_layout()
|
|
{
|
|
// We separate the descriptor sets for the uniform buffer + image and samplers, so we don't need to duplicate the descriptors for the former
|
|
std::vector<VkDescriptorSetLayoutBinding> set_layout_bindings{};
|
|
|
|
VkDescriptorSetLayoutCreateInfo descriptor_layout_create_info{};
|
|
descriptor_layout_create_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
|
|
|
|
// Mark second slot as variable for descriptor indexing
|
|
VkDescriptorSetLayoutBindingFlagsCreateInfoEXT descriptor_set_layout_binding_flags{};
|
|
descriptor_set_layout_binding_flags.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_BINDING_FLAGS_CREATE_INFO_EXT;
|
|
descriptor_set_layout_binding_flags.bindingCount = 2;
|
|
std::vector<VkDescriptorBindingFlagsEXT> descriptor_binding_flags = {
|
|
0,
|
|
VK_DESCRIPTOR_BINDING_VARIABLE_DESCRIPTOR_COUNT_BIT_EXT};
|
|
descriptor_set_layout_binding_flags.pBindingFlags = descriptor_binding_flags.data();
|
|
|
|
descriptor_layout_create_info.pNext = &descriptor_set_layout_binding_flags;
|
|
|
|
// Set layout for the uniform buffer and the image
|
|
set_layout_bindings = {
|
|
// Binding 0 : Vertex shader uniform buffer
|
|
vkb::initializers::descriptor_set_layout_binding(
|
|
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
|
|
VK_SHADER_STAGE_VERTEX_BIT,
|
|
0),
|
|
// Binding 1 : Fragment shader combined image and sampler
|
|
vkb::initializers::descriptor_set_layout_binding(
|
|
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
|
|
VK_SHADER_STAGE_FRAGMENT_BIT,
|
|
1,
|
|
static_cast<uint32_t>(textures.size()))};
|
|
descriptor_layout_create_info.bindingCount = static_cast<uint32_t>(set_layout_bindings.size());
|
|
descriptor_layout_create_info.pBindings = set_layout_bindings.data();
|
|
VK_CHECK(vkCreateDescriptorSetLayout(get_device().get_handle(), &descriptor_layout_create_info, nullptr, &base_descriptor_set_layout));
|
|
|
|
// Set layout for the samplers
|
|
set_layout_bindings = {
|
|
// Binding 0: Fragment shader sampler
|
|
vkb::initializers::descriptor_set_layout_binding(
|
|
VK_DESCRIPTOR_TYPE_SAMPLER,
|
|
VK_SHADER_STAGE_FRAGMENT_BIT,
|
|
0,
|
|
static_cast<uint32_t>(textures.size()))};
|
|
descriptor_layout_create_info.bindingCount = static_cast<uint32_t>(set_layout_bindings.size());
|
|
descriptor_layout_create_info.pBindings = set_layout_bindings.data();
|
|
VK_CHECK(vkCreateDescriptorSetLayout(get_device().get_handle(), &descriptor_layout_create_info, nullptr, &sampler_descriptor_set_layout));
|
|
|
|
// Pipeline layout
|
|
// Set layout for the base descriptors in set 0 and set layout for the sampler descriptors in set 1
|
|
std::vector<VkDescriptorSetLayout> set_layouts = {base_descriptor_set_layout, sampler_descriptor_set_layout};
|
|
VkPipelineLayoutCreateInfo pipeline_layout_create_info =
|
|
vkb::initializers::pipeline_layout_create_info(
|
|
set_layouts.data(),
|
|
static_cast<uint32_t>(set_layouts.size()));
|
|
VK_CHECK(vkCreatePipelineLayout(get_device().get_handle(), &pipeline_layout_create_info, nullptr, &pipeline_layout));
|
|
}
|
|
|
|
void Profiles::setup_descriptor_set()
|
|
{
|
|
// We separate the descriptor sets for the uniform buffer + image and samplers, so we don't need to duplicate the descriptors for the former
|
|
VkDescriptorSetAllocateInfo descriptor_set_alloc_info{};
|
|
|
|
// Descriptors set for the uniform buffer and the image
|
|
descriptor_set_alloc_info =
|
|
vkb::initializers::descriptor_set_allocate_info(
|
|
descriptor_pool,
|
|
&base_descriptor_set_layout,
|
|
1);
|
|
|
|
VkDescriptorSetVariableDescriptorCountAllocateInfoEXT variableDescriptorCountAllocInfo = {};
|
|
uint32_t variableDescCounts[] = {static_cast<uint32_t>(textures.size())};
|
|
variableDescriptorCountAllocInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_VARIABLE_DESCRIPTOR_COUNT_ALLOCATE_INFO_EXT;
|
|
variableDescriptorCountAllocInfo.descriptorSetCount = 1;
|
|
variableDescriptorCountAllocInfo.pDescriptorCounts = variableDescCounts;
|
|
|
|
descriptor_set_alloc_info.pNext = &variableDescriptorCountAllocInfo;
|
|
VK_CHECK(vkAllocateDescriptorSets(get_device().get_handle(), &descriptor_set_alloc_info, &base_descriptor_set));
|
|
|
|
VkDescriptorBufferInfo buffer_descriptor = create_descriptor(*uniform_buffer_vs);
|
|
|
|
// Combined image descriptor for the texture
|
|
VkDescriptorImageInfo image_descriptor{};
|
|
image_descriptor.imageView = textures[0].image_view;
|
|
image_descriptor.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
|
|
image_descriptor.sampler = sampler;
|
|
|
|
std::vector<VkWriteDescriptorSet> write_descriptor_sets(2);
|
|
// Binding 0 : Vertex shader uniform buffer
|
|
write_descriptor_sets[0] = vkb::initializers::write_descriptor_set(
|
|
base_descriptor_set,
|
|
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
|
|
0,
|
|
&buffer_descriptor);
|
|
|
|
// Binding 1 : Fragment shader sampled image
|
|
// Put all images into a single array
|
|
std::vector<VkDescriptorImageInfo> texture_descriptors(textures.size());
|
|
for (size_t i = 0; i < textures.size(); i++)
|
|
{
|
|
texture_descriptors[i].imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
|
|
texture_descriptors[i].sampler = sampler;
|
|
texture_descriptors[i].imageView = textures[i].image_view;
|
|
}
|
|
|
|
// Unlike an array texture, these are addressed like typical arrays
|
|
write_descriptor_sets[1] = {};
|
|
write_descriptor_sets[1].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
|
|
write_descriptor_sets[1].dstBinding = 1;
|
|
write_descriptor_sets[1].dstArrayElement = 0;
|
|
write_descriptor_sets[1].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
|
|
write_descriptor_sets[1].descriptorCount = static_cast<uint32_t>(textures.size());
|
|
write_descriptor_sets[1].pBufferInfo = 0;
|
|
write_descriptor_sets[1].dstSet = base_descriptor_set;
|
|
write_descriptor_sets[1].pImageInfo = texture_descriptors.data();
|
|
|
|
vkUpdateDescriptorSets(get_device().get_handle(), static_cast<uint32_t>(write_descriptor_sets.size()), write_descriptor_sets.data(), 0, nullptr);
|
|
}
|
|
|
|
void Profiles::prepare_pipelines()
|
|
{
|
|
VkPipelineInputAssemblyStateCreateInfo input_assembly_state =
|
|
vkb::initializers::pipeline_input_assembly_state_create_info(
|
|
VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
|
|
0,
|
|
VK_FALSE);
|
|
|
|
VkPipelineRasterizationStateCreateInfo rasterization_state =
|
|
vkb::initializers::pipeline_rasterization_state_create_info(
|
|
VK_POLYGON_MODE_FILL,
|
|
VK_CULL_MODE_NONE,
|
|
VK_FRONT_FACE_CLOCKWISE,
|
|
0);
|
|
|
|
VkPipelineColorBlendAttachmentState blend_attachment_state =
|
|
vkb::initializers::pipeline_color_blend_attachment_state(
|
|
0xf,
|
|
VK_FALSE);
|
|
|
|
VkPipelineColorBlendStateCreateInfo color_blend_state =
|
|
vkb::initializers::pipeline_color_blend_state_create_info(
|
|
1,
|
|
&blend_attachment_state);
|
|
|
|
// Note: Using reversed depth-buffer for increased precision, so Greater depth values are kept
|
|
VkPipelineDepthStencilStateCreateInfo depth_stencil_state =
|
|
vkb::initializers::pipeline_depth_stencil_state_create_info(
|
|
VK_TRUE,
|
|
VK_TRUE,
|
|
VK_COMPARE_OP_GREATER);
|
|
|
|
VkPipelineViewportStateCreateInfo viewport_state =
|
|
vkb::initializers::pipeline_viewport_state_create_info(1, 1, 0);
|
|
|
|
VkPipelineMultisampleStateCreateInfo multisample_state =
|
|
vkb::initializers::pipeline_multisample_state_create_info(
|
|
VK_SAMPLE_COUNT_1_BIT,
|
|
0);
|
|
|
|
std::vector<VkDynamicState> dynamic_state_enables = {
|
|
VK_DYNAMIC_STATE_VIEWPORT,
|
|
VK_DYNAMIC_STATE_SCISSOR};
|
|
|
|
VkPipelineDynamicStateCreateInfo dynamic_state =
|
|
vkb::initializers::pipeline_dynamic_state_create_info(
|
|
dynamic_state_enables.data(),
|
|
static_cast<uint32_t>(dynamic_state_enables.size()),
|
|
0);
|
|
|
|
// Load shaders
|
|
std::array<VkPipelineShaderStageCreateInfo, 2> shader_stages{};
|
|
shader_stages[0] = load_shader("profiles", "profiles.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
|
shader_stages[1] = load_shader("profiles", "profiles.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
|
|
|
|
// Vertex bindings and attributes
|
|
const std::vector<VkVertexInputBindingDescription> vertex_input_bindings = {
|
|
vkb::initializers::vertex_input_binding_description(0, sizeof(VertexStructure), VK_VERTEX_INPUT_RATE_VERTEX),
|
|
};
|
|
const std::vector<VkVertexInputAttributeDescription> vertex_input_attributes = {
|
|
vkb::initializers::vertex_input_attribute_description(0, 0, VK_FORMAT_R32G32B32_SFLOAT, offsetof(VertexStructure, pos)),
|
|
vkb::initializers::vertex_input_attribute_description(0, 1, VK_FORMAT_R32G32_SFLOAT, offsetof(VertexStructure, uv)),
|
|
vkb::initializers::vertex_input_attribute_description(0, 2, VK_FORMAT_R32_SINT, offsetof(VertexStructure, texture_index)),
|
|
};
|
|
VkPipelineVertexInputStateCreateInfo vertex_input_state = vkb::initializers::pipeline_vertex_input_state_create_info();
|
|
vertex_input_state.vertexBindingDescriptionCount = static_cast<uint32_t>(vertex_input_bindings.size());
|
|
vertex_input_state.pVertexBindingDescriptions = vertex_input_bindings.data();
|
|
vertex_input_state.vertexAttributeDescriptionCount = static_cast<uint32_t>(vertex_input_attributes.size());
|
|
vertex_input_state.pVertexAttributeDescriptions = vertex_input_attributes.data();
|
|
|
|
VkGraphicsPipelineCreateInfo pipeline_create_info = vkb::initializers::pipeline_create_info(pipeline_layout, render_pass, 0);
|
|
|
|
pipeline_create_info.pVertexInputState = &vertex_input_state;
|
|
pipeline_create_info.pInputAssemblyState = &input_assembly_state;
|
|
pipeline_create_info.pRasterizationState = &rasterization_state;
|
|
pipeline_create_info.pColorBlendState = &color_blend_state;
|
|
pipeline_create_info.pMultisampleState = &multisample_state;
|
|
pipeline_create_info.pViewportState = &viewport_state;
|
|
pipeline_create_info.pDepthStencilState = &depth_stencil_state;
|
|
pipeline_create_info.pDynamicState = &dynamic_state;
|
|
pipeline_create_info.stageCount = static_cast<uint32_t>(shader_stages.size());
|
|
pipeline_create_info.pStages = shader_stages.data();
|
|
|
|
VK_CHECK(vkCreateGraphicsPipelines(get_device().get_handle(), pipeline_cache, 1, &pipeline_create_info, nullptr, &pipeline));
|
|
}
|
|
|
|
// Prepare and initialize uniform buffer containing shader uniforms
|
|
void Profiles::prepare_uniform_buffers()
|
|
{
|
|
// Vertex shader uniform buffer block
|
|
uniform_buffer_vs = std::make_unique<vkb::core::BufferC>(get_device(),
|
|
sizeof(ubo_vs),
|
|
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
|
|
VMA_MEMORY_USAGE_CPU_TO_GPU);
|
|
|
|
update_uniform_buffers();
|
|
}
|
|
|
|
void Profiles::update_uniform_buffers()
|
|
{
|
|
// Fixed ubo with projection and view matrices
|
|
ubo_vs.projection = camera.matrices.perspective;
|
|
ubo_vs.view = camera.matrices.view;
|
|
|
|
uniform_buffer_vs->convert_and_update(ubo_vs);
|
|
}
|
|
|
|
bool Profiles::prepare(const vkb::ApplicationOptions &options)
|
|
{
|
|
if (!ApiVulkanSample::prepare(options))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
camera.type = vkb::CameraType::LookAt;
|
|
camera.set_position(glm::vec3(0.0f, 0.0f, -10.0f));
|
|
camera.set_rotation(glm::vec3(0.0f));
|
|
|
|
// Note: Using reversed depth-buffer for increased precision, so Znear and Zfar are flipped
|
|
camera.set_perspective(60.0f, static_cast<float>(width) / static_cast<float>(height), 256.0f, 0.1f);
|
|
|
|
generate_textures();
|
|
generate_cubes();
|
|
prepare_uniform_buffers();
|
|
setup_descriptor_set_layout();
|
|
prepare_pipelines();
|
|
setup_descriptor_pool();
|
|
setup_descriptor_set();
|
|
build_command_buffers();
|
|
prepared = true;
|
|
return true;
|
|
}
|
|
|
|
void Profiles::render(float delta_time)
|
|
{
|
|
if (!prepared)
|
|
{
|
|
return;
|
|
}
|
|
draw();
|
|
}
|
|
|
|
void Profiles::view_changed()
|
|
{
|
|
update_uniform_buffers();
|
|
}
|
|
|
|
void Profiles::on_update_ui_overlay(vkb::Drawer &drawer)
|
|
{
|
|
drawer.text("Enabled profile: %s", profile_properties.profileName);
|
|
}
|
|
|
|
std::unique_ptr<vkb::Application> create_profiles()
|
|
{
|
|
return std::make_unique<Profiles>();
|
|
}
|