VulkanIndex.cpp

Go to the documentation of this file.

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   VulkanIndex.cpp                                    :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: rbourgea <rbourgea@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/01/12 07:12:35 by rbourgea          #+#    #+#             */
/*   Updated: 2024/01/12 07:13:31 by rbourgea         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
 
#include "VulkanApp.hpp"
 
void VulkanApp::createIndexBuffer() {
    VkDeviceSize bufferSize = sizeof(indices[0]) * indices.size();
 
    VkBuffer stagingBuffer;
    VkDeviceMemory stagingBufferMemory;
    createBuffer(bufferSize, VK_BUFFER_USAGE_TRANSFER_SRC_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT, stagingBuffer, stagingBufferMemory);
 
    void* data;
    vkMapMemory(device, stagingBufferMemory, 0, bufferSize, 0, &data);
        memcpy(data, indices.data(), (size_t) bufferSize);
    vkUnmapMemory(device, stagingBufferMemory);
 
    createBuffer(bufferSize, VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_INDEX_BUFFER_BIT, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, indexBuffer, indexBufferMemory);
 
    copyBuffer(stagingBuffer, indexBuffer, bufferSize);
 
    vkDestroyBuffer(device, stagingBuffer, nullptr);
    vkFreeMemory(device, stagingBufferMemory, nullptr);
}