QueueFamilyIndices.cpp

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/*
   Copyright 2022 Rishi Challa
 
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at
 
       http://www.apache.org/licenses/LICENSE-2.0
 
   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/
 
#ifdef KALE_VULKAN
 
#include "QueueFamilyIndices.hpp"
 
#include <Kale/Vulkan/Core/Core.hpp>
 
using namespace Kale;
using namespace Kale::Vulkan;
 
QueueFamilyIndices::QueueFamilyIndices() {
    // Empty Body
}
 
QueueFamilyIndices::QueueFamilyIndices(const vk::PhysicalDevice& device) {
    
    // Loop through the family properties and set each index
    uint32_t i = 0;
    for (const vk::QueueFamilyProperties& familyProperties : device.getQueueFamilyProperties()) {
        // Check the queue flags and set the indices based on them
        if (familyProperties.queueFlags & vk::QueueFlagBits::eGraphics) graphicsFamilyIndex = i;
        if (device.getSurfaceSupportKHR(i, Core::surface.get())) presentFamilyIndex = i;
 
        // Break the loop if we've completed all indices
        if (hasAllIndices()) break;
        i++;
    }
}
 
bool QueueFamilyIndices::hasAllIndices() const {
    return graphicsFamilyIndex.has_value() && presentFamilyIndex.has_value();
}
 
std::unordered_set<uint32_t> QueueFamilyIndices::getUniqueIndices() const {
    std::unordered_set<uint32_t> set;
    if (graphicsFamilyIndex.has_value()) set.insert(graphicsFamilyIndex.value());
    if (presentFamilyIndex.has_value()) set.insert(presentFamilyIndex.value());
    return set;
}
 
#endif