shaders.cpp

//
// Created by daily on 27-12-23.
//

#include "shaders.hpp"
namespace vkutil
{
    std::vector<char> readFile(std::string filename, bool debug)
    {
        std::ifstream file(filename, std::ios::ate | std::ios::binary);
        if(debug && !file.is_open())
        {
            std::cout << "Failed to load \"" << filename << "\"" << std::endl;
        }

        size_t filesize { static_cast<size_t>(file.tellg()) };
        std::vector<char> buffer(filesize);
        file.seekg(0);
        file.read(buffer.data(), static_cast<std::streamsize>(filesize));
        file.close();
        return buffer;
    }
    vk::ShaderModule createModule(const std::string& filename, vk::Device device, bool debug)
    {
        std::vector<char> sourceCode = readFile(filename, debug);
        vk::ShaderModuleCreateInfo moduleInfo = {};
        moduleInfo.flags = vk::ShaderModuleCreateFlags();
        moduleInfo.codeSize = sourceCode.size();
        moduleInfo.pCode = reinterpret_cast<const uint32_t*>(sourceCode.data());
        try
        {
            return device.createShaderModule(moduleInfo);
        }
        catch(vk::SystemError &err)
        {
            if(debug)
            {
                std::cout << "Failed to create shader module for \"" << filename << "\"" << std::endl;
            }
            return vk::ShaderModule{};
        }
    }
}