使用Java在Vulkan中加载GLSL Shader

import org.lwjgl.system.MemoryStack;
import org.lwjgl.vulkan.VkShaderModuleCreateInfo;
import org.lwjgl.vulkan.VkDevice;
import org.lwjgl.BufferUtils;

import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.file.Files;
import java.nio.file.Paths;

import static org.lwjgl.vulkan.VK10.*;

public class ShaderCompiler {

    public static long createShaderModule(VkDevice device, String shaderPath) throws IOException {
        ByteBuffer shaderCode = readShaderFile(shaderPath);
        long shaderModule;

        try (MemoryStack stack = MemoryStack.stackPush()) {
            VkShaderModuleCreateInfo createInfo = VkShaderModuleCreateInfo.callocStack(stack);
            createInfo.sType(VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO);
            createInfo.pCode(shaderCode);
            createInfo.flags(0); // 留给未来使用
            createInfo.pNext(0);
            createInfo.codeSize(shaderCode.remaining());

            long[] pShaderModule = new long[1];
            if (vkCreateShaderModule(device, createInfo, null, pShaderModule) != VK_SUCCESS) {
                throw new RuntimeException("Failed to create shader module!");
            }
            shaderModule = pShaderModule[0];
        }

        return shaderModule;
    }

    private static ByteBuffer readShaderFile(String shaderPath) throws IOException {
        byte[] bytes = Files.readAllBytes(Paths.get(shaderPath));
        ByteBuffer buffer = BufferUtils.createByteBuffer(bytes.length);
        buffer.put(bytes).flip();
        return buffer;
    }

    public static void main(String[] args) throws IOException {
        // 假设你已经创建了 VkDevice 实例 device
        VkDevice device = null; // 用你的 VkDevice 实例替换 null

        // 替换为你的shader文件路径
        String vertexShaderPath = "shaders/vert.spv";
        String fragmentShaderPath = "shaders/frag.spv";

        // 创建shader module
        long vertexShaderModule = createShaderModule(device, vertexShaderPath);
        long fragmentShaderModule = createShaderModule(device, fragmentShaderPath);

        System.out.println("Vertex Shader Module: " + vertexShaderModule);
        System.out.println("Fragment Shader Module: " + fragmentShaderModule);

        // 在使用完毕后，需要销毁shader module
        vkDestroyShaderModule(device, vertexShaderModule, null);
        vkDestroyShaderModule(device, fragmentShaderModule, null);
    }
}