63 lines
2.3 KiB
C++
63 lines
2.3 KiB
C++
#include "cve_model.hpp"
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#include <cassert>
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#include <cstring>
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namespace cve {
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CveModel::CveModel(CveDevice &device, const std::vector<Vertex> &verticies) : cveDevice{device} {
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createVertexBuffers(verticies);
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}
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CveModel::~CveModel() {
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vkDestroyBuffer(cveDevice.device(), vertexBuffer, nullptr);
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vkFreeMemory(cveDevice.device(), vertexBufferMemory, nullptr);
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}
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void CveModel::createVertexBuffers(const std::vector<Vertex> &verticies) {
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vertexCount = static_cast<uint32_t>(verticies.size());
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assert(vertexCount >= 3 && "Vertex count must be at least 3");
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VkDeviceSize bufferSize = sizeof(verticies[0]) * vertexCount;
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cveDevice.createBuffer(
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bufferSize,
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VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,
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VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
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vertexBuffer,
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vertexBufferMemory
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);
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void *data;
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vkMapMemory(cveDevice.device(), vertexBufferMemory, 0, bufferSize, 0, &data);
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memcpy(data, verticies.data(), static_cast<size_t>(bufferSize));
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vkUnmapMemory(cveDevice.device(), vertexBufferMemory);
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}
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void CveModel::draw(VkCommandBuffer commandBuffer) {
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vkCmdDraw(commandBuffer, vertexCount, 1, 0, 0);
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}
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void CveModel::bind(VkCommandBuffer commandBuffer) {
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VkBuffer buffers[] = {vertexBuffer};
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VkDeviceSize offsets[] = {0};
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vkCmdBindVertexBuffers(commandBuffer, 0, 1, buffers, offsets);
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}
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std::vector<VkVertexInputBindingDescription> CveModel::Vertex::getBindingDescriptions() {
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std::vector<VkVertexInputBindingDescription> bindingDescriptions(1);
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bindingDescriptions[0].binding = 0;
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bindingDescriptions[0].stride = sizeof(Vertex);
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bindingDescriptions[0].inputRate = VK_VERTEX_INPUT_RATE_VERTEX;
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return bindingDescriptions;
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}
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std::vector<VkVertexInputAttributeDescription> CveModel::Vertex::getAttributeDescriptions() {
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std::vector<VkVertexInputAttributeDescription> attributeDescriptions(1);
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attributeDescriptions[0].binding = 0;
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attributeDescriptions[0].location = 0;
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attributeDescriptions[0].format = VK_FORMAT_R32G32_SFLOAT;
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attributeDescriptions[0].offset = 0;
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return attributeDescriptions;
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}
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}
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